WO2025166522A1 - 随机接入信道的传输方法、装置、设备、介质及程序产品 - Google Patents
随机接入信道的传输方法、装置、设备、介质及程序产品Info
- Publication number
- WO2025166522A1 WO2025166522A1 PCT/CN2024/076176 CN2024076176W WO2025166522A1 WO 2025166522 A1 WO2025166522 A1 WO 2025166522A1 CN 2024076176 W CN2024076176 W CN 2024076176W WO 2025166522 A1 WO2025166522 A1 WO 2025166522A1
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- Prior art keywords
- random access
- configuration
- access channel
- time domain
- type
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
Definitions
- the present application relates to the field of communications, and in particular to a transmission method, apparatus, device, medium, and program product for a random access channel.
- the embodiments of the present application provide a random access channel transmission method, apparatus, device, medium, and program product.
- the technical solution is as follows:
- a random access channel transmission method is provided, the method being performed by a terminal device, the method comprising:
- the random access channel is sent according to relevant parameters when the random access channel is transmitted in the first type of time domain resources and/or relevant parameters when the random access channel is transmitted in the second type of time domain resources.
- a random access channel transmission method is provided, the method being performed by a network device, the method comprising:
- the random access channel is received, where the random access channel is sent by the terminal device according to relevant parameters of the random access channel when it is transmitted in the first type of time domain resources and/or relevant parameters of the random access channel when it is transmitted in the second type of time domain resources.
- the first configuration corresponds to the first type of time domain resources
- the second configuration corresponds to the second type of time domain resources
- the third configuration corresponds to the first type of time domain resources and the second type of time domain resources.
- a random access channel transmission method is provided, the method being performed by a terminal device, the method comprising:
- a random access channel transmission opportunity is valid in the following cases: the random access channel transmission opportunity is within an uplink symbol; or the random access channel transmission opportunity is within a first type of time domain resource, and the random access channel transmission opportunity is located within a first frequency domain bandwidth.
- a random access channel transmission device comprising:
- the first sending module is configured to send the random access channel according to relevant parameters of the random access channel when it is transmitted in the first type of time domain resources and/or relevant parameters of the random access channel when it is transmitted in the second type of time domain resources.
- a random access channel transmission device comprising:
- the second receiving module is used to receive the random access channel, where the random access channel is sent by the terminal device according to relevant parameters of the random access channel when transmitted in the first type of time domain resources and/or relevant parameters of the random access channel when transmitted in the second type of time domain resources.
- a random access channel transmission device comprising:
- the third receiving module is used to receive at least one of the first configuration, the second configuration and the third configuration, where the first configuration, the second configuration and the third configuration are used to configure relevant parameters during transmission of the random access channel, the first configuration corresponds to the first type of time domain resources, the second configuration corresponds to the second type of time domain resources, and the third configuration corresponds to the first type of time domain resources and the second type of time domain resources.
- a random access channel transmission device comprising:
- a transmission module configured to transmit a random access channel on a valid random access channel transmission opportunity
- a random access channel transmission opportunity is valid in the following cases: the random access channel transmission opportunity is within an uplink symbol; or the random access channel transmission opportunity is within a first type of time domain resource, and the random access channel transmission opportunity is located within a first frequency domain bandwidth.
- a terminal device comprising:
- a processor ; a transceiver connected to the processor; a memory for storing executable instructions of the processor;
- the processor is configured to load and execute the executable instructions to implement the above-mentioned random access channel transmission method.
- a network device comprising:
- a processor ; a transceiver connected to the processor; a memory for storing executable instructions of the processor;
- the processor is configured to load and execute the executable instructions to implement the above-mentioned random access channel transmission method.
- a computer-readable storage medium in which at least one program is stored.
- the at least one program is loaded and executed by a processor to implement the above-mentioned random access channel transmission method.
- a chip which includes a programmable logic circuit and/or program instructions.
- the chip runs on a terminal device or a network device, it is used to implement the above-mentioned random access channel transmission method.
- a computer program product which includes computer instructions, the computer instructions are stored in a computer-readable storage medium, a processor obtains the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to implement the above-mentioned random access channel transmission method.
- the terminal device sends a random access channel based on the relevant parameters of the random access channel when it is transmitted in the first type of time domain resources and/or the relevant parameters when it is transmitted in the second type of time domain resources. That is, the terminal device can determine the relevant parameters for transmission under each time domain resource type for different time domain resource types, and send the random access channel based on the relevant parameters. Since the number, position, size, frequency domain bandwidth, etc. of available uplink resources are different in different time domain resource types, the interference to the terminal device when using different time domain resource types for time domain resource transmission will be different, so the link quality corresponding to different time domain resource types is also different; the terminal device determines different relevant parameters for transmission for different time domain resource types, which can improve the transmission success rate.
- FIG2 shows a schematic diagram of the frequency domain resource configuration of the Physical Random Access Channel (PRACH) provided by the related art
- FIG3 shows a schematic diagram of PRACH power control provided by the related art
- FIG4 shows a schematic diagram of a mobile communication system provided by an exemplary embodiment of the present application.
- FIG6 is a schematic diagram showing a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG8 is a schematic diagram showing a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG9 is a schematic diagram showing a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG10 is a schematic diagram showing a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG11 is a schematic diagram showing a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG12 is a schematic diagram showing a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG14 is a schematic diagram showing a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG15 is a schematic diagram showing a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG16 is a schematic diagram showing a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG17 shows a flowchart of a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG18 shows a flowchart of a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG19 shows a flowchart of a random access channel transmission method provided by an exemplary embodiment of the present application.
- FIG20 shows a structural block diagram of a transmission device for a random access channel provided by an exemplary embodiment of the present application
- FIG21 shows a structural block diagram of a transmission device for a random access channel provided by an exemplary embodiment of the present application
- FIG22 shows a structural block diagram of a transmission device for a random access channel provided by an exemplary embodiment of the present application
- FIG23 shows a structural block diagram of a transmission device for a random access channel provided by an exemplary embodiment of the present application
- FIG24 shows a schematic structural diagram of a terminal device provided by an exemplary embodiment of the present application.
- FIG25 shows a schematic structural diagram of a network device provided by an exemplary embodiment of the present application.
- first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
- first information may also be referred to as second information, and similarly, second information may also be referred to as first information.
- word “if” as used herein may be interpreted as "at the time of” or “when” or "in response to determining”.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- LTE-A Advanced Long Term Evolution
- NR New Radio
- LTE-B LTE on unlicensed spectrum
- the present invention relates to 5G NR (5th Generation, 5G) systems, 5G NR (5th Generation, 5G) systems, 5G NR-based access to unlicensed spectrum (LTE-U) systems, NR-based access to unlicensed spectrum (NR-U) systems, non-terrestrial network (NTN) systems, universal mobile telecommunication system (UMTS), wireless local area network (WLAN), wireless fidelity (WiFi), fifth-generation communication (5G) systems, cellular Internet of Things systems, and cellular passive Internet of Things systems. It can also be applied to the subsequent evolution systems of 5G NR systems, and can also be applied to 6G and subsequent evolution systems.
- 5G may also be referred to as “5G NR” or "NR”.
- corresponding may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.
- predefined can be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (for example, a terminal device and a network device).
- a device for example, a terminal device and a network device.
- predefined can refer to information defined in a protocol.
- protocol may refer to a standard protocol in the field of communications, for example, it may include an LTE protocol, a NR protocol, and related protocols used in future communication systems, and this application does not limit this.
- SBFD Single-Band Fiber Optic Fiber Optic Frequency Difference
- TDD Time Division Duplexing
- SBFD Single-Band Fiber Optic Fiber Optic Frequency Difference
- SBFD allows simultaneous transmission and reception of data on different subbands within the same subframe, timeslot, or symbol.
- SBFD is primarily used on the network equipment side, while the user equipment (UE) side maintains its current state, specifically only transmitting or receiving data within the same subframe, timeslot, or symbol.
- SBFD is also known as Cross Division Duplex (XDD).
- the SBFD technology configures a portion of the frequency domain resources corresponding to a downlink (DL) time domain unit as an uplink subband.
- the middle subband of the frequency domain resources corresponding to a DL time domain unit is configured as an uplink subband.
- the upper subband of the frequency domain resources corresponding to a DL time domain unit is configured as an uplink subband.
- SBFD operations meet the following requirements:
- SBFD operates within one TDD carrier.
- the SBFD solution is designed within a single uplink and downlink BWP (Bandwidth Part) pair with aligned center frequencies.
- an SBFD symbol (including legacy uplink symbols) can contain at most one uplink subband.
- This uplink subband can be located in the center of the TDD carrier or on either side.
- the protocol stipulates that uplink transmission is restricted to the UL subband, and downlink reception is restricted to the DL subband.
- PRACH Physical Random Access Channel
- PRACH-related parameters are configured through the random access general configuration (RACH-ConfigGeneric).
- RACH-ConfigGeneric The following describes the parameters in RACH-ConfigGeneric from three aspects: time domain resource configuration, frequency domain resource configuration, and power control.
- the time domain resources corresponding to the random access channel are determined based on the PRACH configuration table.
- PRACH configuration table 1 is for the PRACH configuration for the FDD (Frequency Division Duplexing) band on FR1 (Frequency Range 1)
- PRACH configuration table 2 is for the PRACH configuration for the TDD band on FR1
- PRACH configuration table 3 is for the PRACH configuration on FR2.
- the terminal device determines the PRACH configuration table to use when receiving the PRACH configuration based on the frequency band and frequency band standard of the cell it is resident in.
- the (prach-ConfigurationIndex) parameter indicates a sequence number in the corresponding PRACH configuration table.
- the terminal obtains the PRACH time domain resource configuration information of the cell according to the corresponding PRACH configuration table.
- the time domain resource configuration information includes:
- PRACH sequence format All long and short sequence formats are configured in FR1, and only short sequence format is configured in FR2.
- Configuration period and system frame number The repetition period of the PRACH transmission opportunity and the system frame number in which it is located.
- NR supports period configurations of 10ms, 20ms, 40ms, 80ms and 160ms.
- Subframe/time slot number The subframe number or time slot number in which the PRACH transmission opportunity appears within the system frame.
- FR1 indicates the subframe number, which is also the 15 kHz time slot number;
- FR2 indicates the 60 kHz time slot number.
- the number of PRACH time slots in a subframe or a 60 kHz time slot is also configured.
- the random access sequence is configured with a larger subcarrier spacing, there will be two PRACH time slots in a subframe or a 60 kHz time slot.
- the indication value is 2, both PRACH time slots can be used; when it indicates that there is one PRACH time slot, the later PRACH time slot is used by default.
- Start symbol and duration The starting position and duration of a PRACH transmission opportunity within a PRACH timeslot.
- the duration is the number of consecutive occurrences. Even within the same sequence format, period, and timeslot number configuration, different start positions and durations can be configured to provide a wider range of PRACH density configurations.
- NR supports the configuration of 1, 2, 4, or 8 FDM (Frequency Division Multiplexing) PRACH resources.
- the PRACH capacity is expanded through the configuration parameter msg1-FDM, which determines the number of PRACH transmission opportunities in the frequency domain, and thus the number of PRACH resources in the frequency domain.
- msg1-FDM determines the number of PRACH transmission opportunities in the frequency domain, and thus the number of PRACH resources in the frequency domain.
- the network device notifies the terminal device of the offset of the starting PRB (Physical Resource Block) of the first PRACH transmission opportunity in the frequency domain relative to the starting PRB of the BWP through the parameter msg1-FrequencyStart.
- the PRACH transmission opportunity in the frequency domain is selected using msg1-FDM and msg1-FrequencyStart.
- PRACH power control uses an open-loop power control mechanism.
- the UE sets the PRACH transmit power based on factors such as the expected receive power configured by the network equipment and the path loss measured by the downlink reference signal:
- the calculation formula of the preamble target power PREAMBLE_RECEIVED_TARGET_POWER is as follows.
- PREAMBLE_RECEIVED_TARGET_POWER preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER—1) ⁇ PREAMBLE_POWER_RAMPING_STEP;
- the preamble target received power (preambleReceivedTargetPower) is configured through signaling and can also be called the target power level;
- the preamble code increment (DELTA_PREAMBLE) is determined based on at least one of the random access preamble code format, the subcarrier spacing used, and the fixed value agreed upon by the protocol;
- the number of retransmissions (PREAMBLE_POWER_RAMPING_COUNTER), which can also be called the number of preamble power ramps, is determined based on the power ramp counter and is initialized to 1 at the beginning of each random access process;
- the power ramp step (PREAMBLE_POWER_RAMPING_STEP), which can also be called the preamble power ramp step, is used to indicate the step size of the power ramp.
- the UE During the random access process, if the UE sends a PRACH but does not receive a RAR (Random Access Response) response from the network or does not successfully receive a conflict resolution message, the UE needs to retransmit the PRACH.
- RAR Random Access Response
- the NR UE supports multiple transmit beams, during retransmission, if the transmit beam remains unchanged, the transmit power of the retransmitted PRACH is increased based on the transmit power of the last transmitted PRACH. This can be understood as the number of retransmissions plus 1, or as the power ramp counter plus 1, until the random access process is successfully completed.
- the protocol stipulates that the power ramp counter remains unchanged, taking into account the interference control during beam switching and the delay of random access.
- the slashed ellipse 11 represents the transmit beam used in this transmission
- the dotted ellipse 12 represents the transmit beam not used in this transmission.
- the transmit beam used in the initial transmission, the first retransmission, and the second retransmission is the same. Therefore, the power climb counter is incremented by 1 during the retransmission.
- the transmit beam used is changed compared to the transmit beam used in the previous transmission. Therefore, the power climb counter remains unchanged during the third retransmission.
- the transmit beam used does not change, and the power climb counter is incremented by 1.
- FIG. 4 shows a schematic diagram of a mobile communication system provided by an exemplary embodiment of the present application.
- the mobile communication system includes a network device 110 and a terminal device 120, and may or may not include a terminal device 130, which is not limited in the present application.
- the network device 110 in the present application provides wireless communication functions, and the network device 110 includes but is not limited to: Evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Base Station (e.g., Home Evolved Node B, or Home Node B, HNB), Base Band Unit (BBU), Wireless Fidelity (WFI), and other related network components.
- eNB Evolved Node B
- RNC Radio Network Controller
- NB Node B
- BSC Base Station Controller
- BTS Base Transceiver Station
- Home Base Station e.g., Home Evolved Node B, or Home Node B, HNB
- BBU Base Band Unit
- WFI Wireless Fidelity
- the present invention also includes an access point (AP), a wireless relay node, a wireless backhaul node, a transmission point (TP), or a transmission and reception point (TRP) in a Wi-Fi (Wi-Fi) system, and may also be a next-generation node B (gNB) or a transmission point (TRP or TP) in a fifth-generation (5G) mobile communication system, or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), or a base station in a Beyond Fifth Generation (B5G) or sixth generation (6G) mobile communication system, or a core network (CN), fronthaul, backhaul, radio access network (RAN), network slicing, or a serving cell, a primary cell (PCell), or a primary and secondary cell (PCell) of a terminal device.
- the terminal device 120 in this application is also called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, and user device.
- the terminal includes but is not limited to: handheld devices, wearable devices, vehicle-mounted devices and Internet of Things devices, such as: mobile phones, tablet computers, e-book readers, laptop computers, desktop computers, televisions, game consoles, mobile Internet devices (Mobile Internet Device, MID), augmented reality (Augmented Reality, AR) terminals, virtual reality (Virtual Reality, VR) terminals and mixed reality (Mixed Reality, MR) terminals, extended reality (Extended Reality, XR) terminals, baffle reality (Baffle Reality, BR) terminals, cinematic reality (Cinematic Reality, CR) terminals, deceived reality (Deceive Reality, DR) terminals, wearable devices, handles, electronic tags, controllers, wireless terminals in industrial control (Industrial Control), self-d
- the network device 110 and the terminal device 120 communicate with each other via some air interface technology, such as a Uu interface.
- Uplink communication or uplink transmission, refers to sending signals or data to network device 110;
- downlink communication or downlink transmission, refers to sending signals or data to terminal device 120.
- the terminal device 120 and the terminal device 130 communicate with each other via some air interface technology, such as a PC5 interface.
- first side communication scenario refers to terminal device 120 sending a signal to terminal device 130
- second side communication scenario refers to terminal device 130 sending a signal to terminal device 120
- terminal device 120 and terminal device 130 are both within the network coverage and located in the same cell, or terminal device 120 and terminal device 130 are both within the network coverage but located in different cells, or terminal device 120 is within the network coverage but terminal device 130 is outside the network coverage.
- NR may also be referred to as a 5G NR system or a 5G system.
- a 5G mobile communication system may include a non-standalone (NSA) network and/or a standalone (SA) network.
- NSA non-standalone
- SA standalone
- IoT networks can include, for example, Internet of Vehicles (IoV).
- IoV Internet of Vehicles
- V2X vehicle-to-other-device
- V2X can include: vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, or vehicle-to-network (V2N) communication.
- V2V vehicle-to-vehicle
- V2I vehicle-to-infrastructure
- V2P vehicle-to-pedestrian
- V2N vehicle-to-network
- the mobile communication system provided in the embodiment of the present application can be applied to but not limited to at least one of the following communication scenarios: an uplink communication scenario, a downlink communication scenario, and a sidelink communication scenario.
- FIG5 shows a flow chart of a random access channel transmission method provided by an exemplary embodiment of the present application.
- the method is executed by the above-mentioned terminal device, and the method includes:
- Step 230 Send a random access channel according to the relevant parameters of the random access channel when transmitted in the first type of time domain resources and/or the relevant parameters of the random access channel when transmitted in the second type of time domain resources.
- the time domain resource includes at least one of the following: a symbol, a symbol group, a time slot, a sub-time slot, a frame, and a sub-frame.
- the specific type of the time domain resource is not limited.
- the first type of time domain resources and the second type of time domain resources can be understood as two different duplex modes, time slots or symbols, etc.
- the number, location, size, and frequency domain bandwidth of the available uplink resources in the first type of time domain resources and the second type of time domain resources are different; In other words, the number, location, size, and frequency domain bandwidth of random access channels in the first and second type of time domain resources differ.
- the first type of time domain resources are SBFD symbols
- the second type of time domain resources are non-SBFD symbols. SBFD symbols include at least one of the uplink subband, downlink subband, and guard band, while non-SBFD symbols do not include any of these subbands.
- the relevant parameters include at least one of the following: transmit power; target power level; value of a power ramp counter; value of a random access preamble transmission counter; maximum number of transmissions of a random access preamble; power ramp step of a random access channel; a first parameter, the first parameter is used to indicate the number of frequency-division multiplexed random access channel transmission opportunities in a time unit, for example, a time unit is a time instance; a second parameter, the second parameter is used to indicate the offset value between the lowest random access channel transmission opportunity in the frequency domain and a reference point, the reference point being PRB0 of the uplink BWP, that is, the starting PRB of the uplink BWP.
- the transmit power is used to indicate how much energy the terminal device will use to send the random access channel
- the target power level is used to indicate the target power of the random access channel expected by the receiver of the network device
- the value of the power climb counter is used to indicate the number of power climbs.
- the value of the power climb counter will be increased by 1; the random access preamble transmission counter is used to indicate the number of preamble transmissions during the random access process, that is, the number of random access channel transmissions; the maximum number of random access preamble transmissions is used to indicate the maximum number of preamble transmissions during the entire random access process, that is, the maximum number of random access channel transmissions; the power climb step size of the random access channel is used to indicate the amount of power increase during each power climb.
- the slashed square 10 represents a random access channel transmission opportunity
- the first parameter is 2, which is used to indicate that the number of random access channel transmission opportunities frequency-division multiplexed in one time unit is 2; if the reference point is PRB0 of the active UL BWP (activated uplink BWP), that is, the starting PRB of the active UL BWP, then the offset value between the lowest random access channel transmission opportunity and PRB0 in the frequency domain dimension in FIG6 is the second parameter.
- the relevant parameters of the random access channel during transmission include power-related parameters and/or frequency domain-related parameters.
- a random access channel transmission opportunity is valid under the following circumstances: the random access channel transmission opportunity is within an uplink symbol; or the random access channel transmission opportunity is within a first type of time domain resource and the random access channel transmission opportunity is located within a first frequency domain bandwidth, for example, the random access channel transmission opportunity is within the first type of time domain resource and the random access channel transmission opportunity is located within the intersection of an uplink subband and an uplink BWP.
- the first type of time domain resource is an SBFD symbol; the random access channel transmission opportunity being within an uplink symbol means that the symbols where the random access channel transmission opportunity is located are all uplink symbols; the random access channel transmission opportunity being within the first type of time domain resource means that the symbols where the random access channel transmission opportunity is located are all SBFD symbols; that is, if a random access channel transmission opportunity is located in a symbol that includes both an uplink symbol and an SBFD symbol, then the random access channel transmission opportunity is invalid.
- the first frequency domain bandwidth is a subset of the available uplink bandwidth configured by the network device for the terminal device; the first frequency domain bandwidth is the actual available uplink bandwidth determined in the uplink BWP of the terminal device based on the first duplex mode or the first type of time domain resources.
- the first duplex mode or the first type of time domain resources may be SBFD.
- the uplink BWP is an uplink BWP activated for uplink transmissions by the terminal device.
- the first frequency-domain bandwidth is the entire bandwidth or a portion of the uplink BWP. Due to differences in available uplink subbands in different duplex modes or different time-domain resource types, the first frequency-domain bandwidth may dynamically change even for the same terminal device.
- the first frequency domain bandwidth may be understood as an available subband in an uplink BWP, an available uplink subband, an actually available subband, or an actually available uplink subband.
- the first frequency domain bandwidth is a portion of available subbands within the uplink BWP.
- the first frequency domain bandwidth is the actual available uplink bandwidth of the terminal device.
- the first frequency domain bandwidth includes at least one of the following:
- the real uplink subband is the intersection of the uplink subband (also called nominal subband) and the uplink BWP.
- the real uplink BWP is the intersection of the uplink subband and the uplink BWP.
- the available uplink subband portion in the uplink BWP within the first type of time domain resources is the available uplink subband portion in the uplink BWP within the first type of time domain resources.
- the first frequency domain bandwidth is the intersection of the second frequency domain bandwidth and the third frequency domain bandwidth.
- the second frequency domain bandwidth is the activated uplink bandwidth configured by the network device or communication protocol for the terminal device;
- the third frequency domain bandwidth is the uplink bandwidth in the currently used duplex mode or time domain resource type.
- the subband is usually determined by the relevant configuration of the cellular communication system.
- the intersection of the second frequency domain bandwidth and the third frequency domain bandwidth is the actual available uplink bandwidth of the terminal device, that is, the first frequency domain bandwidth.
- the second frequency domain bandwidth can be referred to as any of the following: uplink BWP, uplink bandwidth, activated uplink BWP, activated BWP, activated uplink bandwidth, and the like.
- the third frequency domain bandwidth can be referred to as any of the following: subband, uplink subband, nominal uplink subband, uplink subband within a frame structure, uplink subband within a first-type time domain resource, and the like.
- the first-type time domain resource is a time domain resource type that includes uplink subbands and/or downlink subbands.
- the first-type time domain resource is at least one of an SBFD symbol, an SBFD time slot, and an SBFD subframe.
- the second frequency domain bandwidth is the uplink BWP
- the third frequency domain bandwidth is the uplink subband
- the first frequency domain bandwidth is the intersection of the uplink subband and the uplink BWP. Since there are many possibilities for the positions of the uplink BWP and the uplink subband, an exemplary representation is as follows:
- the uplink subband completely falls within the uplink BWP, and the first frequency domain bandwidth is the frequency domain bandwidth corresponding to the uplink subband.
- the uplink sub-band does not completely fall within the uplink BWP, and the first frequency domain bandwidth is the intersection of the uplink sub-band and the uplink BWP.
- the uplink sub-band and the uplink BWP are exactly the same, and the first frequency domain bandwidth is the frequency domain bandwidth corresponding to the uplink sub-band or the uplink BWP.
- the relevant parameters of the random access channel during transmission include power-related parameters and/or frequency-domain-related parameters.
- the power-related parameters and frequency-domain-related parameters are respectively introduced in detail below.
- the random access channel transmission opportunity used for this transmission corresponds to the first type of time domain resources
- the random access channel is transmitted, and the first transmit power of the random access channel is determined based on the first target power level; and/or, when the random access channel transmission opportunity used for this transmission corresponds to the second type of time domain resources, the random access channel is transmitted, and the second transmit power of the random access channel is determined based on the second target power level.
- the first transmit power is determined based on at least one of a first target power level, a power ramp step, a power ramp counter, and a preamble increment;
- the second transmit power is determined based on at least one of a second target power level, a power ramp step, a power ramp counter, and a preamble increment; wherein the preamble increment is determined based on at least one of a random access preamble format and a subcarrier spacing.
- the first transmit power is the sum of the first target power level, the power climb amount and the preamble code increment;
- the second transmit power is the sum of the second target power level, the power climb amount and the preamble code increment;
- the power climb amount is determined based on the power climb counter and the power climb step size.
- the target power level includes a first target power level and a second target power level
- the first type of time domain resources corresponds to the first target power level
- the second type of time domain resources corresponds to the second target power level
- the maximum number of transmissions of the random access preamble code, the power ramping step of the random access channel, and the preamble code increment are additionally configured by the network device or agreed upon by the communication protocol, that is, the relevant parameters for the first type of time domain resources and the second type of time domain resources ⁇ maximum number of transmissions of the random access preamble code, power ramping step of the random access channel, preamble code increment ⁇ are the same
- the first type of time domain resources are SBFD symbols
- the second type of time domain resources are non-SBFD symbols
- the first target power level is recorded as preambleReceivedTargetPowerSBFD
- the second target power level is recorded as preambleReceivedTargetPower-nonSBFD
- Second transmit power preambleReceivedTargetPower ⁇ nonSBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- the method provided in the embodiment of the present application shows that when the first type of time domain resources corresponds to the first target power level and the second type of time domain resources corresponds to the second target power level, the first transmit power of the random access channel when transmitted on the first type of time domain resources is increased.
- a calculation method and a calculation method for the second transmit power of a random access channel when transmitted on a second type of time domain resource wherein the method can determine different transmit powers of the random access channel when transmitted on different types of time domain resources using different relevant parameters.
- the interference experienced by a terminal device during the transmission of symbols of the first type of time domain resource and symbols of the second type of time domain resource is different, the link quality for symbols of different resource types is also different. Using different transmit powers can address different interference situations, ensuring that the channel can be correctly received when it reaches a receiver of a network device.
- the first type of time domain resources corresponds to at least one of a first power ramp counter, a first random access preamble transmission counter, and a first power ramp step size; and the second type of time domain resources corresponds to at least one of a second power ramp counter, a second random access preamble transmission counter, and a second power ramp step size. That is, the terminal device maintains at least one of a power ramp counter and a random access preamble transmission counter for the first type of time domain resources and the second type of time domain resources, respectively.
- a random access channel transmission opportunity corresponds to a first type of time domain resource
- a random access channel is transmitted, and a first transmit power of the random access channel is determined based on at least one of a first target power level and a value of a first power escalation counter
- a random access channel transmission opportunity corresponds to a second type of time domain resource
- a random access channel is transmitted, and a second transmit power of the random access channel is determined based on at least one of a second target power level and a value of a second power escalation counter.
- a random access channel transmission opportunity used for this transmission corresponds to the first type of time domain resource
- a random access channel is transmitted, and the first transmit power of the random access channel is determined based on at least one of the first target power level and a value of the first power escalation counter
- a random access channel transmission opportunity used for this transmission corresponds to the second type of time domain resource
- a random access channel is transmitted, and the second transmit power of the random access channel is determined based on at least one of the second target power level and a value of the second power escalation counter.
- the random access channel transmission opportunity corresponds to the first type of time domain resources, which can be understood as the time domain resources where the random access channel transmission opportunity is located belong to the first type of time domain resources; the random access channel transmission opportunity corresponds to the first type of time domain resources, which can be understood as the time domain resources where the random access channel transmission opportunity is located belong to the second type of time domain resources.
- the first type of time domain resources corresponds to the first power climb counter
- the second type of time domain resources corresponds to the second power climb counter, but the first type of time domain resources and the second type of time domain resources share the same target power level
- the first type of time domain resources corresponds to the first target power level
- the second type of time domain resources corresponds to the second target power level
- the first type of time domain resources and the second type of time domain resources share the same power climb counter.
- the first type of time domain resources corresponds to the first target power level and the first power climb counter
- the second type of time domain resources corresponds to the second target power level and the second power climb counter.
- a random access channel transmission opportunity corresponds to a first type of time domain resource
- a random access channel is transmitted, and a first transmit power of the random access channel is determined based on the value of a first power ramp counter
- a random access channel transmission opportunity corresponds to a second type of time domain resource
- a random access channel is transmitted, and a second transmit power of the random access channel is determined based on the value of a second power ramp counter.
- a random access channel transmission opportunity corresponds to a first type of time domain resource
- a random access channel is transmitted, and the first transmit power of the random access channel is determined based on a first target power level and a first power ramp step size
- a random access channel transmission opportunity corresponds to a second type of time domain resource
- a random access channel is transmitted, and the second transmit power of the random access channel is determined based on a second target power level and a second power ramp step size.
- the random access channel transmission opportunity corresponds to the first type of time domain resources
- the random access channel is sent, and the first transmission power of the random access channel is determined based on the first target power level, the value of the first power climb counter and the first power climb step
- the random access channel transmission opportunity corresponds to the second type of time domain resources
- the random access channel is sent, and the second transmission power of the random access channel is determined based on the second target power level, the value of the second power climb counter and the second power climb step.
- the first transmit power is determined based on at least one of a first target power level, a first power ramp step, a value of a first power ramp counter, and a preamble increment;
- the second transmit power is determined based on at least one of a second target power level, a second power ramp step, a value of a second power ramp counter, and a preamble increment; wherein the preamble increment is determined based on at least one of a random access preamble format and a subcarrier spacing.
- the first transmit power is the sum of the first target power level, the first power climb amount and the preamble code increment, and the first power climb amount is determined based on the value of the first power climb counter and the first power climb step;
- the second transmit power is the sum of the second target power level, the second power climb amount and the preamble code increment, and the second power climb amount is determined based on the value of the second power climb counter and the second power climb step.
- the target power level includes a first target power level and a second target power level
- the power ramp step size includes a first power ramp step size and a second power ramp step size
- the power ramp counter includes a first power ramp counter and a second power ramp counter.
- the preamble increment is additionally configured by the network device or agreed upon by the communication protocol.
- the first type of time domain resources are SBFD symbols
- the second type of time domain resources are non-SBFD symbols.
- the first target power level is recorded as preambleReceivedTargetPowerSBFD
- the second target power level is recorded as preambleReceivedTargetPower-nonSBFD
- the first power ramp counter is recorded as PREAMBLE_POWER_RAMPING_COUNTER_SBFD
- the second power ramp counter is recorded as PREAMBLE_POWER_RAMPING_COUNTER_nonSBFD
- the first power ramp step is recorded as PREAMBLE_POWER_RAMPING_STEP_SBFD
- the second power ramp step is recorded as PREAMBLE_POWER_RAMPING_STEP_nonSBFD
- the preamble code increment corresponding to the first type of time domain resources and the second type of time domain resources is recorded as DELTA_PREAMBLE.
- the calculation formulas for the first transmit power and the second transmit power are as follows.
- First transmit power preambleReceivedTargetPowerSBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER_SBFD ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP_SBFD.
- Second transmit power preambleReceivedTargetPower ⁇ nonSBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER_nonSBFD ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP_nonSBFD.
- the first target power level is the same as or different from the second target power level; and the first power transfer counter is the same as or different from the second power transfer counter.
- the method provided in the embodiment of the present application shows a method for calculating the first transmission power of the random access channel when it is transmitted on the first type of time domain resource and a method for calculating the second transmission power of the random access channel when it is transmitted on the second type of time domain resource, when the first type of time domain resource corresponds to at least one of the first target power level, the first power climbing counter, and the first power climbing step length, and the second type of time domain resource corresponds to at least one of the second target power level, the second power climbing counter, and the second power climbing step length.
- This method can determine the different transmission powers of the random access channel when it is transmitted on different time domain resource types through different related parameters.
- the link quality in the symbols of different resource types is also different. Using different transmission powers can cope with different interference situations, so that the channel can be correctly received when it reaches the receiver of the network device.
- the time domain resource type used by the terminal device in random access channel transmission is uncertain, the time domain resource type used in the current transmission during the random access process may be the same as or different from the time domain resource type used in the previous transmission. Therefore, the following describes different ways to increase the power ramp counter when the time domain resource type used in the current transmission is the same as or different from the time domain resource type used in the previous transmission.
- the time domain resource type used in this transmission is different from the time domain resource type used in the previous transmission, which can be expressed as the time domain resource type used in this transmission is the first type of time domain resource, and the time domain resource type used in the previous transmission is the second type of time domain resource; and/or, the time domain resource type used in this transmission is the second type of time domain resource, and the time domain resource type used in the previous transmission is the first type of time domain resource.
- the power ramp counter is kept unchanged or reset or initialized; in the case of a transition from an SBFD symbol to a non-SBFD symbol, that is, when the time domain resource type used in the current transmission is a non-SBFD symbol and the time domain resource type used in the previous transmission is an SBFD symbol, the power ramp counter is incremented by 1.
- the power ramp counter is incremented by 1.
- the time domain resource type used in this transmission is different from the time domain resource type used in the previous transmission, which may only include: the time domain resource type used in this transmission is the first type of time domain resource, and the time domain resource type used in the previous transmission is the second type of time domain resource; in some embodiments, the time domain resource type used in this transmission is different from the time domain resource type used in the previous transmission, which may only include: the time domain resource type used in this transmission is the second type of time domain resource, and the time domain resource type used in the previous transmission is the first type of time domain resource.
- Climbing method 1 The power climbing counter remains unchanged.
- the terminal device uses only one power ramp counter for both the first type of time domain resources and the second type of time domain resources. For random access channel transmission, if the corresponding time domain resource type changes compared to the previous transmission, the power ramp counter remains unchanged; or, if the time domain resource type used for the current random access channel transmission changes compared to the time domain resource type used for the previous transmission, the power ramp counter remains unchanged.
- the power ramp counter is kept unchanged; or, if the time domain resource type used for the current transmission of the random access channel is changed compared to the time domain resource type used for the initial transmission, the power ramp counter is kept unchanged. For example, if there are n random access transmissions, if the time domain resource type corresponding to the random access channel transmission opportunity used for the i-th transmission is different from the time domain resource type corresponding to the random access channel transmission opportunity used for the initial transmission, then the power ramp counter of the random access channel used for the i-th transmission is increased compared to the power ramp counter of the random access channel used for the i-1-th transmission. That is, for random access channel retransmission, if the corresponding time domain resource type is changed compared to the previous transmission or initial transmission, the power ramp-up counter remains unchanged.
- the power ramp counter increments by 1, and the power ramp counter is now 3.
- the power ramp counter remains unchanged, i.e., the power ramp counter is still 3 during the third retransmission.
- the power ramp counter is incremented by 1, and the power ramp counter is now 4.
- the method provided in the embodiment of the present application when the time domain resource type used in random access channel transmission is different from the time domain resource type used in the previous transmission, the power climb counter remains unchanged. This method of calculating the transmission power takes into account the interference level and the random access delay.
- Climbing method 2 Power climbing counter reset or initialization.
- the terminal device uses only one power ramp counter for the first type of time domain resources and the second type of time domain resources. For random access channel transmission, if the corresponding time domain resource type changes compared to the previous transmission, the power ramp counter is reset or initialized; or, if the time domain resource type used for the current random access channel transmission changes compared to the time domain resource type used for the previous transmission, the power ramp counter is reset or initialized.
- resetting or initializing the power ramp counter when the time domain resource type used for the current random access channel transmission changes from that used for the previous transmission is a different way of expressing the same meaning as “resetting or initializing the power ramp counter when the time domain resource type used for the current random access channel transmission changes from that used for the previous transmission.” That is, “resetting or initializing the power ramp counter when the time domain resource type used for the current random access channel transmission changes from that used for the previous transmission” is equivalent to “resetting or initializing the power ramp counter when the time domain resource type used for the current random access channel transmission changes from that used for the previous transmission.” For example, if there are n random access transmissions, and the time domain resource type corresponding to the random access channel transmission opportunity used for the i-th transmission is different from the time domain resource type corresponding to the random access channel transmission opportunity used for the (i-1)th transmission, the power ramp counter for the random access channel used for the i-th transmission is reset or initialized.
- the power climb counter is reset or initialized; or, if the time domain resource type used for the current transmission of the random access channel is changed compared to the time domain resource type used for the initial transmission, the power climb counter is reset or initialized. For example, if there are n random access transmissions, if the time domain resource type corresponding to the random access channel transmission opportunity used for the i-th transmission is different from the time domain resource type corresponding to the random access channel transmission opportunity used for the initial transmission, the power climb counter of the random access channel used for the i-th transmission is reset or initialized. That is, for random access channel retransmission, if the corresponding time domain resource type is changed compared to the previous transmission or the initial transmission, the power climb counter is reset or initialized.
- the time domain resource type used is all first-type time domain resources.
- the power ramp counter increments by 1 after each retransmission.
- the power ramp counter is initialized to an initial value of 1. That is, during the initial transmission, the power ramp counter is 1.
- the power ramp counter increments by 1, and the power ramp counter is now 2.
- the power ramp counter is reset to 1, i.e., the power ramp counter is reset to 1 during the third retransmission.
- the power ramp counter is incremented by 1, and the power ramp counter is now 2.
- the method provided in the embodiment of the present application uses the same time domain resource type used in random access channel transmission as that used in the previous transmission.
- the power climb counter is reset or initialized. This method of calculating the transmit power can minimize the interference to other links caused by the random access process performed after the time domain resource type is changed.
- this method resets or initializes the power climb counter, which may cause the UE to need to perform multiple retransmissions, that is, power climbing, to achieve the transmit power required to successfully complete the random access, which may lead to an increase in the random access delay.
- Climbing method three the power climbing counters corresponding to the first type of time domain resources and the second type of time domain resources are different.
- the terminal device uses a power climb counter for the first type of time domain resources and the second type of time domain resources respectively, uses the first power climb counter for the first type of time domain resources, and uses the second power climb counter for the second type of time domain resources.
- the corresponding power climb counter is selected according to the type of time domain resources used during transmission.
- the terminal device also uses a random access preamble code transmission counter for the first type of time domain resources and the second type of time domain resources respectively.
- the first random access preamble code transmission counter is used for the first type of time domain resources
- the second random access preamble code transmission counter is used for the second type of time domain resources.
- the corresponding power ramp counter is selected according to the type of time domain resources used during transmission.
- the first type of time domain resources corresponds to at least one of a first power ramp counter and a first random access preamble transmission counter;
- the second type of time domain resources corresponds to at least one of a second power ramp counter and a second random access preamble transmission counter.
- a random access procedure when a random access procedure is initiated, at least one of a first power ramp counter, a first random access preamble transmission counter, a second power ramp counter, and a second random access preamble transmission counter is initialized; if random access channel transmission fails and the random access channel corresponds to a first type of time domain resource, the first random access preamble transmission counter is incremented by 1; if random access channel transmission fails and the random access channel corresponds to a second type of time domain resource, the second random access preamble transmission counter is incremented by 1; if the random access channel corresponds to the first type of time domain resource and the value of the first random access preamble transmission counter is greater than a first initial value, the first power ramp counter is incremented by 1; if the random access channel corresponds to the second type of time domain resource and the value of the second random access preamble transmission counter is greater than a second initial value, the second power ramp counter is incremented by 1.
- Random access channel transmission failure indicates that if the RAR window times out but no random access response including the first random access preamble identifier is received or contention resolution is unsuccessful, the random access channel transmission is considered to have failed.
- the first random access preamble identifier matches the random access channel preamble index (PRACH preamble index) sent by the terminal.
- the first power ramp counter and/or the second power ramp counter are updated before random access channel transmission; the first random access preamble transmission counter and/or the second random access preamble transmission counter are updated after random access channel transmission.
- the first random access preamble transmission counter is increased by 1. , at this time the first random access preamble code counter is 2; during the first retransmission, since the time domain resource type corresponding to the random access channel transmission opportunity 22 used in the first retransmission is the first type of time domain resource, and the first random access preamble code transmission counter is greater than the first initial value, the first power climb counter is increased by 1, and the first power climb counter is 2 at this time.
- the first random access preamble code transmission counter is increased by 1, and the first random access preamble code transmission counter is 3 at this time;
- the second random access preamble code transmission counter It is 1, which is the second initial value, so the second power climb counter remains unchanged, or because the second power climb counter is initialized for the first time using the second type of time domain resource, the second power climb counter is 1 at this time.
- the second random access preamble transmission counter is increased by 1, and the second random access preamble transmission counter is 2 at this time;
- the second power climb counter is increased by 1, and the second power climb counter is 2 at this time.
- the second random access preamble transmission counter is increased by 1, and the second random access preamble transmission counter is 3 at this time;
- the fourth retransmission since the time domain resource type corresponding to the random access channel transmission opportunity 25 used for the fourth retransmission is the first type of time domain resource, and the value of the first random access preamble transmission counter is greater than the first initial value, the first power climb counter is increased by 1, and the first power climb counter is 3 at this time.
- the fourth retransmission ends, since the fourth retransmission fails and the time domain resource type corresponding to the random access channel transmission opportunity 25 used for the fourth retransmission is the first type of time domain resource, the first random access preamble counter is increased by 1, and the first random access preamble transmission counter is 4 at this time.
- the method provided in the embodiment of the present application configures different power climbing counters for the first type of time domain resources and the second type of time domain resources, which can shorten the random access delay to a certain extent.
- the terminal needs to maintain two sets of power climbing counters, it is easy to This places a burden on the terminal device, resulting in a higher complexity of the random access process corresponding to the terminal device.
- Climbing method 4 No change is expected in the time domain resource type corresponding to the random access channel.
- the initial and retransmissions of the random access channel correspond to the same time domain resource type; or, the terminal device does not expect the time domain resource type corresponding to the retransmission of the random access channel to change relative to the initial transmission or the previous transmission; or, the terminal device does not expect the time domain resource type corresponding to the retransmission of the random access channel to be different from the time domain resource type corresponding to the initial transmission of the random access channel or the previous transmission of the random access channel.
- the terminal device uses the same time domain resource type as the initial transmission.
- the method provided in the embodiment of the present application always uses the same time domain resource type during the random access process, and can also complete the random access process when there are two time domain resource types, avoiding the problem of interference caused by switching symbol types that cannot be judged. Since this method needs to wait for the random access resource of the desired time domain resource type, the random access delay is relatively high.
- the above-mentioned calculation method and ramping method of the transmit power may be implemented as independent embodiments or combined embodiments.
- the first method for calculating the transmit power can be implemented independently, and when the time domain resource type corresponding to the random access channel changes, the power climb counter is increased by 1; the first method for calculating the transmit power is implemented in combination with the first climbing method, and the same power climb counter is set for the first type of time domain resources and the second type of time domain resources, and when the time domain resource type corresponding to the random access channel changes, the power climb counter remains unchanged; or, the second method for calculating the transmit power is implemented in combination with the second climbing method, and the same power climb counter is set for the first type of time domain resources and the second type of time domain resources, and when the time domain resource type corresponding to the random access channel changes, the power climb counter is reset or initialized; or, the first method for calculating the transmit power is implemented in combination with the fourth climbing method, and the same power climb counter is set for the first type of time domain resources and the second
- the second method for calculating the transmit power is implemented in combination with the third method for climbing, and for the first type of time domain resources and the second type of time domain resources, a power climbing counter and a random access preamble transmission counter are maintained respectively; or, the first method for calculating the transmit power is implemented in combination with the second method for calculating the transmit power, the first type of time domain resources corresponds to the first target power level, and the first type of time domain resources corresponds to at least one of the first power climbing counter, the first random access preamble transmission counter, and the first power climbing step; the second type of time domain resources corresponds to the second target power level, and the second type of time domain resources corresponds to at least one of the second power climbing counter, the second random access preamble transmission counter, and the second power climbing step; or, the first method for calculating the transmit power can be implemented in combination with the fourth method for climbing, and the terminal device expects that the time domain resource type corresponding to each random access channel transmission is the same. After each random access channel transmission fails, the power climbing counter is
- the frequency domain related parameters include at least one of the following parameters: a first parameter and a second parameter; the first parameter is used to indicate the number of random access channel transmission opportunities of frequency division multiplexing in a time unit, for example, a time unit is a time instance; the second parameter is used to indicate the offset value between the lowest random access channel transmission opportunity and the reference point in the frequency domain, and the reference point is PRB0 of the uplink BWP, that is, the starting PRB of the uplink BWP; the first parameter can be expressed as msg1-FDM, and the second parameter can be expressed as msg1-FrequencyStart.
- the first parameter corresponding to the first type of time domain resources is the same as or different from the first parameter corresponding to the second type of time domain resources; and/or, the second parameter corresponding to the first type of time domain resources is the same as or different from the second parameter corresponding to the second type of time domain resources.
- the first parameter corresponding to the first type of time domain resources can be recorded as msg1-FDMSBFD
- the second parameter corresponding to the first type of time domain resources can be recorded as msg1-FrequencyStartSBFD
- the first parameter corresponding to the second type of time domain resources can be recorded as msg1-FDMNonSBFD
- the second parameter corresponding to the second type of time domain resources can be recorded as msg1-FrequencyStartNonSBFD.
- msg1-FDMSBFD 2
- msg1-FrequencyStartSBFD N1
- a group of random access channel transmission opportunities 26 located in the uplink subband is selected, and the group of random access channel transmission opportunities 26 includes 4 random access channel transmission opportunities.
- msg1-FDMNonSBFD 4
- msg1-FrequencyStartNonSBFD N2
- a group of random access channel transmission opportunities 27 is selected, and the group of random access channel transmission opportunities 27 includes 8 random access channel transmission opportunities.
- the method provided in the embodiment of the present application performs frequency domain configuration for the first type of time domain resources and the second type of time domain resources respectively, in a flexible manner, which can not only ensure that all random access channel transmission opportunities are valid, but also ensure that the random access channel transmission opportunities are at both ends of the uplink BWP or uplink subband, thereby avoiding resource fragmentation.
- the method further includes:
- Step 210 Receive a first configuration and a second configuration, where the first configuration and the second configuration are used to configure relevant parameters during random access channel transmission, the first configuration corresponds to a first type of time domain resource, and the second configuration corresponds to a second type of time domain resource.
- the time domain resource includes at least one of the following: symbol, symbol group, time slot, sub-time slot, frame, sub-frame.
- the specific type of time domain resource is not limited.
- the first configuration corresponds to the first type of symbol
- the second configuration corresponds to the second type of symbol.
- the first configuration corresponds to SBFD symbols
- the second configuration corresponds to non-SBFD symbols.
- SBFD symbols are symbols that include at least one of an uplink subband, a downlink subband, and a guard band, while non-SBFD symbols do not include any of the above subbands.
- the configuration of the random access channel includes at least one of a power configuration and a frequency domain configuration.
- the power configuration is used to configure power-related parameters during random access channel transmission
- the frequency domain configuration is used to configure frequency-related parameters during random access channel transmission.
- the first configuration includes at least one of a first power configuration and a first frequency domain configuration
- the second configuration includes at least one of a second power configuration and a second frequency domain configuration.
- the configuration items included in the first configuration and the second configuration are the same, that is, when the first configuration includes the first power configuration, the second configuration should also include the second power configuration; when the first configuration includes the first frequency domain configuration, the second configuration should also include the second frequency domain configuration; when the first configuration includes the first power configuration and the first frequency domain configuration, the second configuration should also include the second power configuration and the second frequency domain configuration.
- the power configuration includes at least one of the following related parameters: target power level; maximum number of transmissions of the random access preamble code; power ramp step size of the random access channel; that is, either the first configuration or the second configuration includes at least one of the following related parameters: target power level; maximum number of transmissions of the random access preamble code; power ramp step size of the random access channel.
- the power-related parameters include at least one of the following parameters: transmit power; target power level; value of the power ramp counter; value of the random access preamble transmission counter; maximum number of transmissions of the random access preamble; power ramp step of the random access channel.
- the first part of the related parameters is based on additional configuration of the network device or protocol agreement, and the second part of the parameters is selected, calculated or determined by the terminal device based on the first part of the parameters.
- the power-related parameters are configured through configuration method 1, and any one of the first configuration and the second configuration includes at least one of the following parameters: target power level, maximum number of transmissions of the random access preamble, and power ramp step of the random access channel.
- the first configuration includes a first target power level and the second configuration includes a second target power level.
- the first configuration further includes a first power ramp step length
- the second configuration further includes a second power ramp step length, wherein the first power ramp step length is the same as or different from the second power ramp step length.
- the first configuration further includes a first maximum number of times, which is the maximum number of times a random access preamble is transmitted corresponding to the first type of time domain resources; the second configuration further includes a second maximum number of times, which is the maximum number of times a random access preamble is transmitted corresponding to the second type of time domain resources.
- the first maximum number of times is the same as or different from the second maximum number of times.
- the frequency domain configuration includes at least one of the following related parameters: a first parameter, the first parameter is used to indicate the number of random access channel transmission opportunities for frequency division multiplexing in one time unit; a second parameter, the second parameter is used to indicate the offset value between the lowest random access channel transmission opportunity in the frequency domain and the reference point, and the reference point is PRB0 of the uplink BWP, that is, the starting PRB of the uplink BWP; that is, either the first configuration and the second configuration includes at least one of the following related parameters: the first parameter, the first parameter is used to indicate the number of random access channel transmission opportunities for frequency division multiplexing in one time unit; the second parameter, the second parameter is used to indicate the offset value between the lowest random access channel transmission opportunity in the frequency domain and the reference point, and the reference point is PRB0 of the uplink BWP.
- the first configuration and the second configuration do not share related parameters.
- the terminal device uses a set of power ramp counters and preamble transmission counters for the first configuration and the second configuration respectively.
- the first configuration includes at least one of the following: a first target power level, a first maximum number of times, a first power ramp step, a first power ramp counter, a first preamble transmission counter, a first Parameter 1, second parameter 1.
- the second configuration includes at least one of the following: a second target power level, a second maximum number of times, a second power ramp step size, a second power ramp counter, a second preamble transmission counter, a first parameter 2, and a second parameter 2.
- the first target power level and the second target power level are generally different.
- the related parameters include a target power level, a maximum number of transmissions of a random access preamble, and a power ramp step of a random access channel; for the target power level, the first configuration parameter (i.e., the first target power level) and the second configuration parameter (i.e., the second target power level) are used for configuration; or, based on additional configuration of the network device or protocol agreement; or, the first configuration parameter (i.e., the first target power level) and the offset value (i.e., the target power level offset) are used for configuration; for the maximum number of transmissions of a random access preamble, the first configuration parameter (i.e., the first maximum number) and the second configuration parameter (i.e., the second target power level) are used for configuration.
- the first configuration parameter i.e., the first maximum number
- the second configuration parameter i.e., the second target power level
- the second configuration parameter is the second target power level, denoted as preambleReceivedTargetPower
- the offset value is the target power level offset, denoted as delta_SBFD
- the first target power level corresponding to the first configuration is preambleReceivedTargetPower + delta_SBFD.
- Second transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- the power configuration of the random access channel can also be implemented as follows: if the time domain resource type used in the current transmission is different from the time domain resource type used in the previous transmission, the power ramp counter is incremented by 1; an offset count is set, recorded as counter_SBFD, and when the time domain resource type used in the initial transmission is the first type of time domain resource, the offset count is initialized to 1; when the time domain resource type used in the initial transmission is the second type of time domain resource, the offset count is initialized to 0; when the time domain resource type used in the retransmission is the first type of time domain resource, the offset count is incremented by 1, that is, counter_SBFD + 1.
- the calculation formulas for the first transmit power and the second transmit power are as follows.
- First transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP+counter_SBFD ⁇ delta_SBFD.
- Second transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- the method includes:
- Step 220 Receive a third configuration, where the third configuration is used to configure relevant parameters during random access channel transmission, and the third configuration corresponds to the first type of time domain resources and the second type of time domain resources.
- the third configuration includes a second parameter; the second parameter is used to indicate an offset value between a lowest random access channel transmission opportunity in the frequency domain and a reference point.
- the reference point is the lowest PRB of the first frequency domain bandwidth in the frequency domain; and for the second type of time domain resources, the reference point is PRB0 of the uplink BWP.
- the third configuration also includes a first parameter, which is used to indicate the number of frequency-division multiplexed random access channel transmission opportunities in a time unit, for example, a time unit is a time instance.
- the third configuration includes a first parameter and a second parameter, the first parameter can be recorded as msg1-FDM, and the second parameter can be recorded as msg1-FrequencyStart.
- the first parameter can be recorded as msg1-FDM
- the second parameter can be recorded as msg1-FrequencyStart.
- a group of random access channel transmission opportunities 28 of the first type of time domain resources and a group of random access channel transmission opportunities 29 of the second type of time domain resources are selected, wherein the group of random access channel transmission opportunities 28 includes 4 random access channel transmission opportunities, and the group of random access channel transmission opportunities 29 includes 4 random access channel transmission opportunities.
- Reference point 30 is the lowest PRB of the intersection of the uplink subband and the uplink BWP in the frequency domain dimension
- reference point 31 is PRB0 of the uplink BWP.
- the method provided in the embodiments of the present application shares a set of configurations for first-type time-domain resources and second-type time-domain resources, thereby reducing signaling overhead.
- the terminal device only needs to maintain one set of configurations and interpret the first-type time-domain resources and second-type time-domain resources differently, ensuring that all random access channel transmission opportunities are valid and that the random access channel transmission opportunities are at both ends of the uplink BWP or uplink subband, thus avoiding resource fragmentation.
- the random access channel transmission method illustrated in step 210 and the random access channel transmission method illustrated in step 220 can be implemented in combination. That is, a portion of the relevant parameters can be configured using configuration method one, while another portion can be configured using configuration method two; or, a first portion of the relevant parameters can be configured using configuration method one, a second portion can be configured using configuration method two, and a third portion can be configured based on additional network device configuration or protocol agreement.
- configuration method one can be used for power configuration, while configuration method two can be used for frequency domain configuration; or, for the frequency domain configuration of the random access channel, a first type of time domain resource corresponds to a first configuration, a second type of time domain resource corresponds to a second configuration, the first configuration and the second configuration include a first parameter, and the value of the first parameter corresponding to the first configuration is the same as or different from the value of the first parameter corresponding to the second configuration; the first type of time domain resource and the second type of time domain resource correspond to a third configuration, the third configuration includes a second parameter, and the third configuration has different interpretation methods for the first type of time domain resource and the second type of time domain resource.
- the number of random access channel transmission opportunities corresponding to the first type of time domain resources and the number of random access channel transmission opportunities corresponding to the second type of time domain resources are determined according to the method shown in step 210, and the positions of the random access channel transmission opportunities corresponding to the first type of time domain resources and the second type of time domain resources are determined according to the method shown in step 220.
- Steps 210 and 220 may be implemented as independent embodiments or as a combined embodiment. When steps 210 and 220 are implemented as a combined embodiment, steps 210 and 220 may be swapped in order or performed simultaneously.
- a corresponding random access failure judgment method is designed for the situation where the terminal device uses a random access preamble code transmission counter for the first type of time domain resources and the second type of time domain resources respectively.
- a random access problem is reported based on a first random access preamble transmission counter and a first threshold, or a second random access preamble transmission counter and a second threshold, the first threshold is related to a first maximum number of times, which is the maximum number of transmissions of a random access preamble corresponding to a first type of time domain resource, and the second threshold is related to a second maximum number of times, which is the maximum number of transmissions of a random access preamble corresponding to a second type of time domain resource; or, a random access problem is reported based on the first random access preamble transmission counter, the second random access preamble transmission counter and a third threshold, the third threshold is related to the maximum number of transmissions of a random access preamble corresponding to the first type of time domain resource and the second time domain resource class; wherein, the random access problem is used to indicate that there is an abnormality in the random access process of the terminal device.
- Failure judgment method 1 The first type of time domain resources and the second type of time domain resources respectively correspond to the maximum number of transmission times of a random access preamble code.
- the random access problem is reported; or when the value of the second random access preamble transmission counter is greater than or equal to the second threshold, the random access problem is reported.
- the first threshold is the first maximum number of times, and the second threshold is the second maximum number of times; or, the first threshold is the sum of the first maximum number of times and the first initial value, and the second threshold is the sum of the second maximum number of times and the second initial value.
- the first type of time domain resources are SBFD symbols
- the second type of time domain resources are non-SBFD symbols
- the first maximum number is recorded as preambleTransMax_SBFD
- the second maximum number is recorded as preambleTransMax_nonSBFD.
- the first type of time domain resources corresponds to the first random access preamble transmission counter (PREAMBLE_TRANSMISSION_COUNTER_SBFD), and the second type of time domain resources corresponds to the second random access preamble transmission counter (PREAMBLE_TRANSMISSION_COUNTER_nonSBFD);
- the first threshold is the sum of the first maximum number and the first initial value, and the second threshold is the sum of the second maximum number and the second initial value;
- the first initial value is the initial value of the first random access preamble transmission counter, which is 1;
- the second initial value is the initial value of the second random access preamble transmission counter, which is also 1.
- the method provided in the embodiment of the present application records the number of times the terminal device attempts the random access process by setting a preamble code transmission counter, so that when there are first type time domain resources and second type time domain resources, the terminal device can judge whether it is necessary to continue the random access process.
- the first type of time domain resources and the second type of time domain resources correspond to only a maximum number of transmission times of a random access preamble code.
- the number of transmissions is greater than or equal to the third threshold, a random access problem is reported, and the number of transmissions is the sum of the value of the first random access preamble transmission counter and the value of the second random access preamble transmission counter.
- the third threshold is the maximum number of transmissions of the random access preamble; or, the third threshold is the sum of the maximum number of transmissions of the random access preamble, the first initial value, and the second initial value.
- the first type of time domain resources are SBFD symbols, and the second type of time domain resources are non-SBFD symbols; the maximum number of transmissions of the random access preamble is recorded as preambleTransMax.
- the first type of time domain resources corresponds to the first random access preamble transmission counter (PREAMBLE_TRANSMISSION_COUNTER_SBFD), and the second type of time domain resources corresponds to the second random access preamble transmission counter (PREAMBLE_TRANSMISSION_COUNTER_nonSBFD);
- the third threshold is the sum of the maximum number of transmissions of the random access preamble, the first initial value, and the second initial value;
- the first initial value is the initial value of the first random access preamble transmission counter, which is 1;
- the second initial value is the initial value of the second random access preamble transmission counter, which is also 1.
- the method provided in the embodiment of the present application records the number of times the terminal device attempts the random access process by setting a preamble code transmission counter, so that when there are first type time domain resources and second type time domain resources, the terminal device can judge whether it is necessary to continue the random access process.
- FIG17 shows a flow chart of a random access channel transmission method provided by an exemplary embodiment of the present application.
- the method is executed by a network device and includes:
- Step 330 Receive a random access channel, where the random access channel is sent by the terminal device according to relevant parameters of the random access channel when transmitted in the first type of time domain resources and/or relevant parameters of the random access channel when transmitted in the second type of time domain resources.
- the time domain resource includes at least one of the following: a symbol, a symbol group, a time slot, a sub-time slot, a frame, and a sub-frame.
- the specific type of the time domain resource is not limited.
- the first type of time domain resources and the second type of time domain resources can be understood as two different duplex modes, time slots, or symbols.
- the number, position, size, and frequency domain bandwidth of the available uplink resources in the first type of time domain resources and the second type of time domain resources are different; or the number, position, size, and frequency domain bandwidth of the random access channels in the first type of time domain resources and the second type of time domain resources are different.
- the first type of time domain resources are SBFD symbols
- the second type of time domain resources are non-SBFD symbols.
- SBFD symbols are symbols that include at least one of an uplink subband, a downlink subband, and a guard band
- non-SBFD symbols are symbols that do not include the above subbands.
- the relevant parameters include at least one of the following: transmit power; target power level; value of a power ramp counter; value of a random access preamble transmission counter; maximum number of transmissions of a random access preamble; power ramp step of a random access channel; a first parameter, the first parameter is used to indicate the number of frequency-division multiplexed random access channel transmission opportunities in a time unit, such as a time unit is a time instance; a second parameter, the second parameter is used to indicate an offset value between a lowest random access channel transmission opportunity in the frequency domain and a reference point, the reference point being PRB0 of an uplink BWP.
- the transmit power is used to indicate how much energy the terminal device will use to send the random access channel
- the target power level is used to indicate the target power of the random access channel expected by the receiver of the network device
- the value of the power climb counter is used to indicate the number of power climbs.
- the value of the power climb counter will be increased by 1; the random access preamble transmission counter is used to indicate the number of preamble transmissions during the random access process, that is, the number of random access channel transmissions; the maximum number of random access preamble transmissions is used to indicate the maximum number of preamble transmissions during the entire random access process, that is, the maximum number of random access channel transmissions; the power climb step size of the random access channel is used to indicate the amount of power increase during each power climb.
- the slashed block 10 represents a random access channel transmission opportunity
- the first parameter is 2, which is used to indicate that the number of random access channel transmission opportunities for frequency division multiplexing in one time unit is 2; if the reference point is active UL BWP (activated uplink The PRB0 of the active UL BWP), that is, the starting PRB of the active UL BWP, the offset value between the lowest random access channel transmission opportunity and PRB0 in the frequency domain dimension in FIG6 is the second parameter.
- the relevant parameters of the random access channel during transmission include power-related parameters and/or frequency domain-related parameters.
- the power-related parameters include transmit power and a power ramp counter.
- the specific calculation process of the transmission power is the transmission power calculation process of the terminal device, which will not be repeated here.
- the target power level includes a first target power level and a second target power level, the first type of time domain resources corresponds to the first target power level, and the second type of time domain resources corresponds to the second target power level; a random access channel is received, the random access channel transmission opportunity corresponds to the first type of time domain resources, and the first transmit power of the random access channel is determined by the terminal device based on the first target power level; and/or, a random access channel is received, the random access channel transmission opportunity corresponds to the second type of time domain resources, and the second transmit power of the random access channel is determined by the terminal device based on the second target power level.
- the first transmit power is determined by the terminal device based on at least one of a first target power level, a power climb step, a power climb counter, and a preamble code increment;
- the second transmit power is determined by the terminal device based on at least one of a second target power level, a power climb step, a power climb counter, and a preamble code increment; wherein the preamble code increment is determined based on at least one of a random access preamble code format and a subcarrier spacing.
- the first type of time domain resources corresponds to at least one of a first power climb counter, a first random access preamble transmission counter, and a first power climb step;
- the second type of time domain resources corresponds to at least one of a second power climb counter, a second random access preamble transmission counter, and a second power climb step.
- the first type of time domain resource corresponds to the first power climb counter
- the second type of time domain resource corresponds to the second power climb counter, but the first type of time domain resource and the second type of time domain resource share the same target power level
- the first type of time domain resource corresponds to the first target power level
- the second type of time domain resource corresponds to the second target power level
- the first type of time domain resource and the second type of time domain resource share the same power climb counter.
- the first type of time domain resource corresponds to the first target power level and the first power climb counter
- the second type of time domain resource corresponds to the second target power level and the second power climb counter.
- the first transmit power is determined by the terminal device based on at least one of a first target power level, a first power climb step, a first power climb counter and a preamble code increment;
- the second transmit power is determined by the terminal device based on at least one of a second target power level, a second power climb step, a second power climb counter and a preamble code increment; wherein the preamble code increment is determined based on at least one of a random access preamble code format and a subcarrier spacing.
- the terminal device keeps the power ramp counter unchanged.
- the terminal device for random access channel transmission, if the corresponding time domain resource type changes compared to the previous transmission, the terminal device resets or initializes the power ramp counter.
- the terminal device when the random access process is started, the terminal device initializes at least one of the first power climb counter, the first random access preamble transmission counter, the second power climb counter, and the second random access preamble transmission counter; when the random access channel transmission fails and the random access channel corresponds to the first type of time domain resources, the first random access preamble transmission counter in the terminal device is increased by 1; when the random access channel transmission fails and the random access channel corresponds to the second type of time domain resources, the second random access preamble transmission counter in the terminal device is increased by 1; when the random access channel corresponds to the first type of time domain resources and the value of the first random access preamble transmission counter is greater than the first initial value, the first power climb counter in the terminal device is increased by 1; when the random access channel corresponds to the second type of time domain resources and the value of the second random access preamble transmission counter is greater than the second initial value, the second power climb counter in the terminal device is increased by 1.
- a random access channel transmission failure is considered to have occurred if the RAR window times out but no random access response containing the first random access preamble identifier is received or contention resolution is unsuccessful.
- the first random access preamble identifier matches the PRACH preamble index sent by the terminal.
- the initial transmission and retransmission of the random access channel correspond to the same time domain resource type; or, the terminal device does not expect the retransmission of the random access channel to change the corresponding time domain resource type relative to the initial transmission or relative to the previous transmission; or, the terminal device does not expect the time domain resource type corresponding to the retransmission of the random access channel to be different from the time domain resource type corresponding to the initial transmission of the random access channel or the previous transmission of the random access channel.
- a random access problem reported by a receiving terminal device is reported based on a first random access preamble transmission counter and a first threshold, or a second random access preamble transmission counter and a second threshold, and the first threshold is related to the first maximum number of times.
- the first maximum number is the maximum number of transmissions of the random access preamble code corresponding to the first type of time domain resources
- the second threshold is related to the second maximum number
- the second maximum number is the maximum number of transmissions of the random access preamble code corresponding to the second type of time domain resources
- a random access problem reported by a receiving terminal device the random access problem is reported based on the first random access preamble code transmission counter, the second random access preamble code transmission counter and the third threshold
- the third threshold is related to the maximum number of transmissions of the random access preamble code corresponding to the first type of time domain resources and the second time domain resource class; wherein, the random access problem is used to indicate that there is an abnormality in the random access process of the terminal device.
- a random access channel transmission opportunity is valid under the following circumstances: the random access channel transmission opportunity is within an uplink symbol; or the random access channel transmission opportunity is within a first type of time domain resource and the random access channel transmission opportunity is located within a first frequency domain bandwidth, for example, the random access channel transmission opportunity is within the first type of time domain resource and the random access channel transmission opportunity is located within the intersection of an uplink subband and an uplink BWP.
- the first type of time domain resource is an SBFD symbol; the random access channel transmission opportunity being within an uplink symbol means that the symbols where the random access channel transmission opportunity is located are all uplink symbols; the random access channel transmission opportunity being within the first type of time domain resource means that the symbols where the random access channel transmission opportunity is located are all SBFD symbols; that is, if a random access channel transmission opportunity is located in a symbol that includes both an uplink symbol and an SBFD symbol, then the random access channel transmission opportunity is invalid.
- the first frequency domain bandwidth is a subset of the available uplink bandwidth configured by the network device for the terminal device; the first frequency domain bandwidth is the actual available uplink bandwidth determined in the uplink BWP of the terminal device based on the first duplex mode or the first type of time domain resources.
- the first duplex mode or the first type of time domain resources may be SBFD.
- the uplink BWP is an uplink BWP activated for uplink transmissions by the terminal device.
- the first frequency-domain bandwidth is the entire bandwidth or a portion of the uplink BWP. Due to differences in available uplink subbands in different duplex modes or different time-domain resource types, the first frequency-domain bandwidth may dynamically change even for the same terminal device.
- the first frequency domain bandwidth may be understood as an available subband in an uplink BWP, an available uplink subband, an actually available subband, or an actually available uplink subband.
- the network device receives a random access channel, and the random access channel is sent by the terminal device based on the relevant parameters of the random access channel when it is transmitted in the first type of time domain resources and/or the relevant parameters when it is transmitted in the second type of time domain resources. That is, the random access channel received by the network device is determined by the terminal device based on different relevant parameters corresponding to different time domain resource types.
- the first frequency domain bandwidth is a portion of available subbands within the uplink BWP.
- the first frequency domain bandwidth is the actual available uplink bandwidth of the terminal device. A detailed description of the first frequency domain bandwidth is provided in "1. First Frequency Domain Bandwidth" above and is not repeated here.
- the network device provides differentiated configurations for the terminal device for the first type of time domain resources and/or the second type of time domain resources. There are two configuration methods, which are described below.
- the method further includes:
- the configuration of the random access channel includes at least one of a power configuration and a frequency domain configuration.
- the power configuration is used to configure power-related parameters during random access channel transmission
- the frequency domain configuration is used to configure frequency-related parameters during random access channel transmission.
- the first configuration includes at least one of a first power configuration and a first frequency domain configuration
- the second configuration includes at least one of a second power configuration and a second frequency domain configuration.
- the power configuration includes at least one of the following related parameters: target power level; maximum number of transmissions of the random access preamble code; power ramp step size of the random access channel; that is, either the first configuration or the second configuration includes at least one of the following related parameters: target power level; maximum number of transmissions of the random access preamble code; power ramp step size of the random access channel.
- the power-related parameters include at least one of the following parameters: transmit power; target power level; value of the power ramp counter; value of the random access preamble transmission counter; maximum number of transmissions of the random access preamble; and power ramp step size of the random access channel.
- the first configuration and the second configuration only include parameters with different values, wherein the parameters with the same values in the first configuration and the second configuration can be additionally configured by the network device or agreed upon by the communication protocol; for example, the first configuration includes a first target power level, the second configuration includes a second target power level, the maximum number of transmissions of the random access preamble code and the power climbing step size of the random access channel are additionally configured by the network device or agreed upon by the communication protocol; or, the first configuration includes a first target power level and a first power climbing step size, the second configuration includes a second target power level and a second power climbing step size, the maximum number of transmissions of the random access preamble code is additionally configured by the network device or agreed upon by the communication protocol.
- the first configuration includes a first target power level and a first maximum number of times
- the second configuration includes a second target power level and a second maximum number of times.
- the power climbing step of the random access channel is additionally configured by the network device or agreed upon by the communication protocol; or, the first configuration includes a first target power level, a first maximum number of times and a first power climbing step, and the second configuration includes a second target power level, a second maximum number of times and a second power climbing step.
- the first configuration and the second configuration include all parameters. That is, the first configuration includes a first target power level, a first maximum number of times, and a first power ramp step size, while the second configuration includes a second target power level, a second maximum number of times, and a second power ramp step size.
- the first maximum number of times and the second maximum number of times may be the same or different, and the first power ramp step size and the second power ramp step size may be the same or different.
- the frequency domain configuration includes at least one of the following related parameters: a first parameter, the first parameter is used to indicate the number of random access channel transmission opportunities for frequency division multiplexing in one time unit; a second parameter, the second parameter is used to indicate the offset value between the lowest random access channel transmission opportunity in the frequency domain and the reference point, and the reference point is PRB0 of the uplink BWP; that is, either the first configuration or the second configuration includes at least one of the following related parameters: a first parameter, the first parameter is used to indicate the number of random access channel transmission opportunities for frequency division multiplexing in one time unit; a second parameter, the second parameter is used to indicate the offset value between the lowest random access channel transmission opportunity in the frequency domain and the reference point, and the reference point is PRB0 of the uplink BWP.
- the first configuration and the second configuration share some related parameters.
- the terminal device uses a set of power climb counters and preamble transmission counters for the first configuration and the second configuration.
- the shared related parameters corresponding to the first configuration and the second configuration are the power climb counter and the preamble transmission counter.
- the first configuration includes at least one of the following: a first target power level, a first maximum number of times, a first power climb step, a first parameter 1, and a second parameter 1.
- the second configuration includes at least one of the following: a second target power level, a second maximum number of times, a second power climb step, a first parameter 2, and a second parameter 2.
- the first target power level and the second target power level are usually different.
- the first maximum number and the second maximum number may be the same or different, the first power climb step and the second power climb step may be the same or different, the first parameter 1 and the first parameter 2 may be the same or different, and the second parameter 1 and the second parameter 2 may be the same or different.
- the terminal device uses a set of power ramp counters and preamble transmission counters for the first configuration and the second configuration, respectively.
- the first configuration includes at least one of the following: a first target power level, a first maximum number of times, a first power ramp step size, a first power ramp counter, a first preamble transmission counter, a first parameter 1, and a second parameter 1.
- the second configuration includes at least one of the following: a second target power level, a second maximum number of times, a second power ramp step size, a second power ramp counter, a second preamble transmission counter, a first parameter 2, and a second parameter 2.
- the first target power level and the second target power level are typically different.
- the first maximum number and the second maximum number of times can be the same or different, the first power ramp step size and the second power ramp step size can be the same or different, the first power ramp counter and the second power ramp counter are typically different, the first preamble transmission counter and the second preamble transmission counter are typically different, the first parameter 1 and the first parameter 2 can be the same or different, and the second parameter 1 and the second parameter 2 can be the same or different.
- a first configuration parameter and a second configuration parameter are sent, the first configuration parameter corresponds to the first configuration, and the second configuration parameter corresponds to the second configuration; or, the first configuration parameter and an offset value are sent, the first configuration parameter corresponds to the first configuration, and the configuration parameter after the first configuration parameter is offset based on the offset value corresponds to the second configuration; or, the second configuration parameter and an offset value are sent, the second configuration parameter corresponds to the second configuration, and the configuration parameter after the second configuration value parameter is offset based on the offset value corresponds to the first configuration; or, the first configuration parameter is sent, the first configuration parameter corresponds to the first configuration; or, the second configuration parameter is sent, and the second configuration parameter corresponds to the second configuration.
- the related parameters include a target power level, a maximum number of transmissions of a random access preamble, and a power ramp step of a random access channel; for the target power level, the first configuration parameter (i.e., the first target power level) and the second configuration parameter (i.e., the second target power level) are used for configuration; or, based on additional configuration of the network device or protocol agreement; or, the first configuration parameter (i.e., the first target power level) and the offset value (i.e., the target power level offset) are used for configuration; for the maximum number of transmissions of a random access preamble, the first configuration parameter (i.e., the first maximum number) and The second configuration parameter (i.e., the second maximum number of times) is configured; or, based on additional configuration of the network device or protocol agreement; or, the first configuration parameter (i.e., the first maximum number of times) and the offset value (i.e., the maximum number of times offset) are configured; for the power ramp step size of the random
- the first configuration parameter includes a first target power level
- the second configuration parameter includes a second target power level
- the first configuration includes a first target power level
- the offset value includes a target power level offset
- the second target power level corresponding to the second configuration is the sum of the first target power level and the target power level offset
- the first configuration includes a first target power level and a first power climbing step
- the offset value includes a target power level offset and a power climbing step offset
- the second target power level corresponding to the second configuration is the sum of the first target power level and the target power level offset
- the second power climbing step corresponding to the second configuration is the sum of the first target power climbing step and the power climbing step offset.
- the second configuration parameter is the second target power level, denoted as preambleReceivedTargetPower
- the offset value is the target power level offset, denoted as delta_SBFD
- the first target power level corresponding to the first configuration is preambleReceivedTargetPower + delta_SBFD.
- First transmit power preambleReceivedTargetPower+delta_SBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- Second transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- the power configuration of the random access channel can also be implemented as follows: if the time domain resource type used in the current transmission is different from the time domain resource type used in the previous transmission, the power ramp counter is incremented by 1; an offset count is set, recorded as counter_SBFD, and when the time domain resource type used in the initial transmission is the first type of time domain resource, the offset count is initialized to 1; when the time domain resource type used in the initial transmission is the second type of time domain resource, the offset count is initialized to 0; when the time domain resource type used in the retransmission is the first type of time domain resource, the offset count is incremented by 1, that is, counter_SBFD + 1.
- the calculation formulas for the first transmit power and the second transmit power are as follows.
- First transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP+counter_SBFD ⁇ delta_SBFD.
- Second transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- the network device performs random access by sending the first configuration and the second configuration of the random access channel to the terminal device. Since the first configuration corresponds to the first type of time domain resources and the second configuration corresponds to the second type of time domain resources; this enables the terminal device to select different configurations for different time domain resource types during the random access process.
- the method further includes:
- Step 320 Send a third configuration, where the third configuration is used to configure relevant parameters during random access channel transmission.
- the third configuration corresponds to the first type of time domain resources and the second type of time domain resources.
- a set of configurations ie, a third configuration, may be used in common for the first type of time domain resources and the second type of time domain resources.
- the third configuration includes a second parameter; the second parameter is used to indicate an offset value between a lowest random access channel transmission opportunity in the frequency domain and a reference point.
- the reference point is the lowest PRB of the first frequency domain bandwidth in the frequency domain; and for the second type of time domain resources, the reference point is PRB0 of the uplink BWP.
- the third configuration also includes a first parameter, which is used to indicate the number of frequency-division multiplexed random access channel transmission opportunities in a time unit, for example, a time unit is a time instance.
- the third configuration includes a first parameter and a second parameter, the first parameter can be recorded as msg1-FDM, and the second parameter can be recorded as msg1-FrequencyStart.
- the first parameter can be recorded as msg1-FDM
- the second parameter can be recorded as msg1-FrequencyStart.
- a group of random access channel transmission opportunities 28 of the first type of time domain resources and a group of random access channel transmission opportunities 29 of the second type of time domain resources are selected, wherein the group of random access channel transmission opportunities 28 includes 4 random access channel transmission opportunities, and the group of random access channel transmission opportunities 29 includes 4 random access channel transmission opportunities.
- Reference point 30 is the lowest PRB of the intersection of the uplink subband and the uplink BWP in the frequency domain dimension
- reference point 31 is PRB0 of the uplink BWP.
- the method provided in the embodiments of the present application enables the network device to set only one configuration for the first type of time domain resources and the second type of time domain resources, thereby saving signaling overhead.
- the terminal device only needs to maintain one configuration and interpret the first type of time domain resources and the second type of time domain resources differently, while still ensuring that all random access channel transmission opportunities are valid and that the random access channel transmission opportunities are at both ends of the uplink BWP or uplink subband, thus avoiding resource fragmentation.
- the random access channel transmission method shown in step 310 and the random access channel transmission method shown in step 320 can be implemented in combination. That is, part of the relevant parameters can be configured by configuration method 1, and the other part of the parameters can be configured by configuration method 2; or the first part of the relevant parameters can be configured by configuration method 1, and the second part of the parameters can be configured by configuration method 2.
- the third part of the parameters can be based on additional configuration of the network device or protocol agreement. For example, for the frequency domain configuration of the random access channel, the first type of time domain resources corresponds to the first configuration, and the second type of time domain resources corresponds to the second configuration.
- the first configuration and the second configuration include a first parameter, and the value of the first parameter corresponding to the first configuration is the same as or different from the value of the first parameter corresponding to the second configuration.
- the first type of time domain resources and the second type of time domain resources correspond to a third configuration, and the third configuration includes a second parameter.
- the third configuration has different interpretation methods for the first type of time domain resources and the second type of time domain resources.
- the terminal device configures the number of random access channel transmission opportunities corresponding to the first type of time domain resources and the number of random access channel transmission opportunities corresponding to the second type of time domain resources according to the method shown in step 310, and configures the positions of the random access channel transmission opportunities corresponding to the first type of time domain resources and the second type of time domain resources according to the method shown in step 320.
- Steps 310 and 320 can be implemented as independent embodiments or as a combined embodiment. When steps 310 and 320 are implemented as a combined embodiment, steps 310 and 320 can be swapped in order or performed simultaneously.
- Step 410 Receive at least one of the first configuration, the second configuration and the third configuration, where the first configuration, the second configuration and the third configuration are used to configure relevant parameters during random access channel transmission, the first configuration corresponds to the first type of time domain resources, the second configuration corresponds to the second type of time domain resources, and the third configuration corresponds to the first type of time domain resources and the second type of time domain resources.
- the time domain resource includes at least one of the following: a symbol, a symbol group, a time slot, a sub-time slot, a frame, and a sub-frame.
- the specific type of the time domain resource is not limited.
- the first type of time domain resources and the second type of time domain resources can be understood as two different duplex modes, time slots, or symbols.
- the number, position, size, and frequency domain bandwidth of the available uplink resources in the first type of time domain resources and the second type of time domain resources are different; or the number, position, size, and frequency domain bandwidth of the random access channels in the first type of time domain resources and the second type of time domain resources are different.
- the first type of time domain resources are SBFD symbols
- the second type of time domain resources are non-SBFD symbols.
- SBFD symbols are symbols that include at least one of an uplink subband, a downlink subband, and a guard band
- non-SBFD symbols are symbols that do not include the above subbands.
- the terminal device receives the first configuration and the second configuration; or, the terminal device receives the third configuration; or, the terminal device receives the first configuration, the second configuration, and the third configuration.
- the first configuration, second configuration and third configuration received by the terminal device can be found in the above "3.1 Configuration method 1" and "3.2 Configuration method 2", which will not be repeated here.
- the terminal device receives at least one of the first configuration, the second configuration, and the third configuration before transmitting the random access channel, wherein the first configuration, the second configuration, and the third configuration are used to configure the relevant parameters for the transmission of the random access channel, the first configuration corresponds to the first type of time domain resources, the second configuration corresponds to the second type of time domain resources, and the third configuration corresponds to the first type of time domain resources and the second type of time domain resources.
- the first configuration and the second configuration correspond to the case of separate configuration, and the third configuration corresponds to the case of common configuration. Whether they are configured separately or together, the terminal device can select different configurations for different time domain resource types during the random access process.
- FIG19 shows a flow chart of a random access channel transmission method provided by an exemplary embodiment of the present application.
- the method is executed by the above-mentioned terminal device, and the method includes:
- Step 510 Transmitting a random access channel on a valid random access channel transmission opportunity
- a random access channel transmission opportunity is valid in the following cases: the random access channel transmission opportunity is within an uplink symbol; or the random access channel transmission opportunity is within the first type of time domain resources, and the random access channel transmission opportunity is located within the first frequency domain bandwidth.
- the first type of time domain resources are SBFD symbols.
- a random access channel transmission opportunity within an uplink symbol indicates that all symbols containing the random access channel transmission opportunity are uplink symbols.
- a random access channel transmission opportunity within the first type of time domain resources indicates that all symbols containing the random access channel transmission opportunity are SBFD symbols. In other words, if a random access channel transmission opportunity is located within a symbol that includes both uplink symbols and SBFD symbols, then the random access channel transmission opportunity is invalid.
- the first frequency domain bandwidth is a subset of the available uplink bandwidth configured by the network device for the terminal device; the first frequency domain bandwidth is the actual available uplink bandwidth determined in the uplink BWP of the terminal device based on the first duplex mode or the first type of time domain resources.
- the first duplex mode or the first type of time domain resources may be SBFD.
- the uplink BWP is an uplink BWP activated for uplink transmissions by the terminal device.
- the first frequency-domain bandwidth is the entire bandwidth or a portion of the uplink BWP. Due to differences in available uplink subbands in different duplex modes or different time-domain resource types, the first frequency-domain bandwidth may dynamically change even for the same terminal device.
- the first frequency domain bandwidth may be understood as an available subband in an uplink BWP, an available uplink subband, an actually available subband, or an actually available uplink subband.
- the first frequency domain bandwidth is a portion of available subbands within the uplink BWP.
- the first frequency domain bandwidth is the actual available uplink bandwidth of the terminal device. A detailed description of the first frequency domain bandwidth is provided in "1. First Frequency Domain Bandwidth" above and is omitted here.
- the method provided in the embodiment of the present application shows that the transmission condition of the random access channel is to transmit the random access channel in an effective manner.
- the random access channel is used for transmission and the transmission conditions for effective random access channel transmission opportunities are given, so that the terminal equipment can successfully transmit when transmitting on the random access channel.
- FIG20 shows a block diagram of a random access channel transmission apparatus provided by an exemplary embodiment of the present application.
- the apparatus may be implemented as a terminal device, or as a part of a terminal device, through software or hardware, or a combination of both.
- the apparatus includes:
- the first sending module 610 is configured to send a random access channel according to relevant parameters of the random access channel when transmitted in the first type of time domain resources and/or relevant parameters of the random access channel when transmitted in the second type of time domain resources.
- the time domain resource includes at least one of the following: a symbol, a symbol group, a time slot, a sub-time slot, a frame, and a sub-frame.
- the specific type of the time domain resource is not limited.
- the first type of time domain resources and the second type of time domain resources can be understood as two different duplex modes, time slots, or symbols.
- the number, position, size, and frequency domain bandwidth of the available uplink resources in the first type of time domain resources and the second type of time domain resources are different; or the number, position, size, and frequency domain bandwidth of the random access channels in the first type of time domain resources and the second type of time domain resources are different.
- the first type of time domain resources are SBFD symbols
- the second type of time domain resources are non-SBFD symbols.
- SBFD symbols are symbols that include at least one of an uplink subband, a downlink subband, and a guard band
- non-SBFD symbols are symbols that do not include the above subbands.
- the relevant parameters include at least one of the following: transmit power; target power level; value of the power climb counter; value of the random access preamble transmission counter; maximum number of transmissions of the random access preamble; power climb step of the random access channel; a first parameter, the first parameter is used to indicate the number of random access channel transmission opportunities of frequency division multiplexing in one time unit; a second parameter, the second parameter is used to indicate the offset value between the lowest random access channel transmission opportunity in the frequency domain and the reference point, the reference point is PRB0 of the uplink BWP, that is, the starting PRB of the uplink BWP.
- the relevant parameters of the random access channel during transmission include power-related parameters and/or frequency domain-related parameters.
- a random access channel transmission opportunity is valid under the following circumstances: the random access channel transmission opportunity is within an uplink symbol; or the random access channel transmission opportunity is within a first type of time domain resource and the random access channel transmission opportunity is within a first frequency domain bandwidth, for example, the random access channel transmission opportunity is within an SBFD symbol and the random access channel transmission opportunity is within the intersection of an uplink subband and an uplink BWP.
- the first type of time domain resource is an SBFD symbol; the random access channel transmission opportunity is within an uplink symbol, which means that the symbols where the random access channel transmission opportunity is located are all uplink symbols; the random access channel transmission opportunity is within the first type of time domain resource, which means that the symbols where the random access channel transmission opportunity is located are all SBFD symbols; that is, if a random access channel transmission opportunity is located in a symbol that includes both an uplink symbol and an SBFD symbol, then the random access channel transmission opportunity is invalid.
- the first frequency domain bandwidth is a subset of the available uplink bandwidth configured by the network device for the terminal device; the first frequency domain bandwidth is the actual available uplink bandwidth determined in the uplink BWP of the terminal device based on the first duplex mode or the first type of time domain resources.
- the first duplex mode or the first type of time domain resources may be SBFD.
- the uplink BWP is an uplink BWP activated for uplink transmissions by the terminal device.
- the first frequency-domain bandwidth is the entire bandwidth or a portion of the uplink BWP. Due to differences in available uplink subbands in different duplex modes or different time-domain resource types, the first frequency-domain bandwidth may dynamically change even for the same terminal device.
- the first frequency domain bandwidth may be understood as an available subband in an uplink BWP, an available uplink subband, an actually available subband, or an actually available uplink subband.
- the terminal device sends a random access channel according to the relevant parameters of the random access channel when transmitted in the first type of time domain resources and/or the relevant parameters when transmitted in the second type of time domain resources, that is, the terminal device can determine the relevant parameters for transmission under each time domain resource type for different time domain resource types, and send the random access channel according to the relevant parameters.
- the first frequency domain bandwidth is a portion of available subbands within the uplink BWP.
- the first frequency domain bandwidth is the actual available uplink bandwidth of the terminal device. A detailed description of the first frequency domain bandwidth is provided in "1. First Frequency Domain Bandwidth" above and is not repeated here.
- the relevant parameters of the random access channel during transmission include power-related parameters and/or frequency-domain-related parameters.
- power-related parameters and frequency-domain-related parameters please refer to "2.1 Power-Related Parameters” and “2.2 Frequency-Related Parameters” in the above method side, and will not be repeated here.
- the network device provides a differentiated service for the terminal device for the first type of time domain resources and/or the second type of time domain resources.
- Configuration There are two configuration methods, which are introduced below.
- the apparatus further comprises:
- the first receiving module is used to receive a first configuration and a second configuration, where the first configuration and the second configuration are used to configure relevant parameters during random access channel transmission, the first configuration corresponds to a first type of time domain resource, and the second configuration corresponds to a second type of time domain resource.
- the time domain resources include at least one of the following: a symbol, a symbol group, a time slot, a sub-time slot, a frame, and a subframe.
- the specific type of time domain resources is not limited.
- the first configuration corresponds to a first type of symbol
- the second configuration corresponds to a second type of symbol.
- the first configuration corresponds to an SBFD symbol
- the second configuration corresponds to a non-SBFD symbol.
- An SBFD symbol is a symbol that includes at least one of an uplink subband, a downlink subband, and a guard band
- a non-SBFD symbol is a symbol that does not include any of the above subbands.
- the configuration of the random access channel includes at least one of a power configuration and a frequency domain configuration.
- the power configuration is used to configure power-related parameters during random access channel transmission
- the frequency domain configuration is used to configure frequency-related parameters during random access channel transmission.
- the first configuration includes at least one of a first power configuration and a first frequency domain configuration
- the second configuration includes at least one of a second power configuration and a second frequency domain configuration.
- the configuration items included in the first configuration and the second configuration are the same, that is, when the first configuration includes the first power configuration, the second configuration should also include the second power configuration; when the first configuration includes the first frequency domain configuration, the second configuration should also include the second frequency domain configuration; when the first configuration includes the first power configuration and the first frequency domain configuration, the second configuration should also include the second power configuration and the second frequency domain configuration.
- the power configuration includes at least one of the following related parameters: target power level; maximum number of transmissions of the random access preamble code; power ramp step size of the random access channel; that is, either the first configuration or the second configuration includes at least one of the following related parameters: target power level; maximum number of transmissions of the random access preamble code; power ramp step size of the random access channel.
- the first configuration includes a first target power level and the second configuration includes a second target power level.
- the first configuration further includes a first power ramp step length
- the second configuration further includes a second power ramp step length, wherein the first power ramp step length is the same as or different from the second power ramp step length.
- the first configuration further includes a first maximum number of times, which is the maximum number of times a random access preamble is transmitted corresponding to the first type of time domain resources; the second configuration further includes a second maximum number of times, which is the maximum number of times a random access preamble is transmitted corresponding to the second type of time domain resources.
- the first maximum number of times is the same as or different from the second maximum number of times.
- the first configuration and the second configuration only include parameters with different values, wherein the parameters with the same values in the first configuration and the second configuration can be additionally configured by the network device or agreed upon by the communication protocol; for example, the first configuration includes a first target power level, the second configuration includes a second target power level, the maximum number of transmissions of the random access preamble code and the power climbing step of the random access channel are additionally configured by the network device or agreed upon by the communication protocol; or, the first configuration includes the first target power level and the first power climbing step, the second configuration includes the second target power level and the second power climbing step, the maximum number of transmissions of the random access preamble code is additionally configured by the network device or agreed upon by the communication protocol; or, the first configuration includes the first target power level and the first maximum number, the second configuration includes the second target power level and the second maximum number, and the power climbing step of the random access channel is additionally configured by the network device or agreed upon by the communication protocol; or, the first configuration includes the first target power level, the first maximum number and the first power
- the frequency domain configuration includes at least one of the following related parameters: a first parameter, the first parameter is used to indicate the number of random access channel transmission opportunities for frequency division multiplexing in one time unit; a second parameter, the second parameter is used to indicate the offset value between the lowest random access channel transmission opportunity in the frequency domain dimension and the reference point, and the reference point is PRB0 of the uplink BWP, that is, the starting PRB of the uplink BWP; that is, either the first configuration or the second configuration includes at least one of the following related parameters: a first parameter, the first parameter is used to indicate the number of random access channel transmission opportunities for frequency division multiplexing in one time unit; a second parameter, the second parameter is used to indicate the offset value between the lowest random access channel transmission opportunity in the frequency domain and the reference point, and the reference point is PRB0 of the uplink BWP.
- the first configuration and the second configuration share some related parameters.
- the terminal device uses a set of power ramp counters and preamble transmission counters for the first configuration and the second configuration.
- the shared related parameters corresponding to the first configuration and the second configuration are the power ramp counter and the preamble transmission counter.
- the first configuration includes at least one of the following: a first target power level, a first maximum number of times, a first power ramp step, a first parameter 1, and a second parameter 1.
- the second configuration includes at least one of the following: a second target power level, a first maximum number of times, a first power ramp step, a first parameter 1, and a second parameter 1.
- the first target power level and the second target power level are usually different.
- the first maximum number of times and the second maximum number of times can be the same or different, the first power ramp step size and the second power ramp step size can be the same or different, the first parameter 1 and the first parameter 2 can be the same or different, and the second parameter 1 and the second parameter 2 can be the same or different.
- the terminal device uses a set of power ramp counters and preamble transmission counters for the first configuration and the second configuration, respectively.
- the first configuration includes at least one of the following: a first target power level, a first maximum number of times, a first power ramp step size, a first power ramp counter, a first preamble transmission counter, a first parameter 1, and a second parameter 1.
- the second configuration includes at least one of the following: a second target power level, a second maximum number of times, a second power ramp step size, a second power ramp counter, a second preamble transmission counter, a first parameter 2, and a second parameter 2.
- the first target power level and the second target power level are typically different.
- the first maximum number and the second maximum number of times can be the same or different, the first power ramp step size and the second power ramp step size can be the same or different, the first power ramp counter and the second power ramp counter are typically different, the first preamble transmission counter and the second preamble transmission counter are typically different, the first parameter 1 and the first parameter 2 can be the same or different, and the second parameter 1 and the second parameter 2 can be the same or different.
- the first configuration parameter includes a first target power level
- the second configuration parameter includes a second target power level
- the first configuration includes a first target power level
- the offset value includes a target power level offset
- the second target power level corresponding to the second configuration is the sum of the first target power level and the target power level offset
- the first configuration includes a first target power level and a first power climbing step
- the offset value includes a target power level offset and a power climbing step offset
- the second target power level corresponding to the second configuration is the sum of the first target power level and the target power level offset
- the second power climbing step corresponding to the second configuration is the sum of the first target power climbing step and the power climbing step offset.
- a part of the related parameters are configured by a first configuration parameter and a second configuration parameter; another part of the related parameters are configured by a first configuration parameter and an offset value; or, the first part of the related parameters are configured by a first configuration parameter and a second configuration parameter, the second part of the related parameters are configured by a first configuration parameter and an offset value, and the third part of the related parameters are based on additional configuration of the network device or protocol agreement.
- the related parameters include a target power level, a maximum number of transmissions of a random access preamble, and a power ramp step of a random access channel; for the target power level, the first configuration parameter (i.e., the first target power level) and the second configuration parameter (i.e., the second target power level) are used for configuration; or, based on additional configuration of the network device or protocol agreement; or, the first configuration parameter (i.e., the first target power level) and the offset value (i.e., the target power level offset) are used for configuration; for the maximum number of transmissions of a random access preamble, the first configuration parameter (i.e., the first maximum number) and the second configuration parameter (i.e., the second target power level) are used for configuration.
- the first configuration parameter i.e., the first maximum number
- the second configuration parameter i.e., the second target power level
- Configuration is performed using the first configuration parameter (i.e., the second maximum number of times); or, based on additional configuration of the network device or protocol agreement; or, using the first configuration parameter (i.e., the first maximum number of times) and the offset value (i.e., the maximum number offset) for configuration; for the power ramp step of the random access channel, the first configuration parameter (i.e., the first power ramp step) and the second configuration parameter (i.e., the second power ramp step) are configured; or, based on additional configuration of the network device or protocol agreement; or, using the first configuration parameter (i.e., the first power ramp step) and the offset value (i.e., the power ramp step offset) for configuration.
- the first configuration parameter i.e., the second maximum number of times
- the offset value i.e., the maximum number offset
- the first configuration parameter includes a first target power level
- the second configuration parameter includes a second target power level
- the first configuration includes a first target power level
- the offset value includes a target power level offset
- the second target power level corresponding to the second configuration is the sum of the first target power level and the target power level offset
- the first configuration includes a first target power level and a first power climbing step
- the offset value includes a target power level offset and a power climbing step offset
- the second target power level corresponding to the second configuration is the sum of the first target power level and the target power level offset
- the second power climbing step corresponding to the second configuration is the sum of the first target power climbing step and the power climbing step offset.
- the second configuration parameter is the second target power level, denoted as preambleReceivedTargetPower
- the offset value is the target power level offset, denoted as delta_SBFD
- the first target power level corresponding to the first configuration is preambleReceivedTargetPower + delta_SBFD.
- First transmit power preambleReceivedTargetPower+delta_SBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- Second transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- the power configuration of the random access channel can also be adopted in the following manner: when the time domain resource type used in the current transmission is different from the time domain resource type used in the previous transmission, the power climbing counter is increased by 1; the offset number is set and recorded as counter_SBFD, and when the time domain resource type used in the initial transmission is the first type of time domain resource, the offset number is initialized to 1; when the time domain resource type used in the initial transmission is the first type of time domain resource, the offset number is initialized to 1; When the time domain resource type used for retransmission is the second type of time domain resource, the offset count is initialized to 0. When the time domain resource type used for retransmission is the first type of time domain resource, the offset count is increased by 1, that is, counter_SBFD + 1. In this case, the calculation formulas for the first transmit power and the second transmit power are as follows.
- First transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP+counter_SBFD ⁇ delta_SBFD.
- Second transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- the device provided in the embodiment of the present application provides the terminal device with a first configuration and a second configuration of the random access channel, so that the terminal device can use the first configuration or the second configuration for random access. Since the first configuration corresponds to the first type of time domain resources and the second configuration corresponds to the second type of time domain resources; this enables the terminal device to select different configurations for different time domain resource types during the random access process.
- the first receiving module is also used to receive a third configuration, which is used to configure relevant parameters during random access channel transmission.
- the third configuration corresponds to the first type of time domain resources and the second type of time domain resources.
- a set of configurations ie, a third configuration, may be used in common for the first type of time domain resources and the second type of time domain resources.
- the third configuration includes a second parameter; the second parameter is used to indicate an offset value between a lowest random access channel transmission opportunity in the frequency domain and a reference point.
- the reference point is the lowest PRB of the intersection of the uplink subband and the uplink BWP in the frequency domain; and for the second type of time domain resources, the reference point is PRB0 of the uplink BWP.
- the third configuration also includes a first parameter, which is used to indicate the number of frequency-division multiplexed random access channel transmission opportunities in a time unit, for example, a time unit is a time instance.
- the third configuration includes a first parameter and a second parameter, the first parameter can be recorded as msg1-FDM, and the second parameter can be recorded as msg1-FrequencyStart.
- the first parameter can be recorded as msg1-FDM
- the second parameter can be recorded as msg1-FrequencyStart.
- a group of random access channel transmission opportunities 28 of the first type of time domain resources and a group of random access channel transmission opportunities 29 of the second type of time domain resources are selected, wherein the group of random access channel transmission opportunities 28 includes 4 random access channel transmission opportunities, and the group of random access channel transmission opportunities 29 includes 4 random access channel transmission opportunities.
- Reference point 30 is the lowest PRB of the intersection of the uplink subband and the uplink BWP in the frequency domain dimension
- reference point 31 is PRB0 of the uplink BWP.
- the method provided in the embodiments of the present application shares a set of configurations for first-type time-domain resources and second-type time-domain resources, thereby reducing signaling overhead.
- the terminal device only needs to maintain one set of configurations and interpret the first-type time-domain resources and second-type time-domain resources differently, ensuring that all random access channel transmission opportunities are valid and that the random access channel transmission opportunities are at both ends of the uplink BWP or uplink subband, thus avoiding resource fragmentation.
- the first receiving module in the above-mentioned configuration method 1 and configuration method 2 can be implemented as the same device or as different devices. That is, a part of the relevant parameters can be configured by configuration method 1, and another part of the parameters can be configured by configuration method 2; or, the first part of the relevant parameters can be configured by configuration method 1, the second part of the parameters can be configured by configuration method 2, and the third part of the parameters can be based on additional configuration of the network device or protocol agreement.
- configuration method 1 is used for power configuration
- configuration method 2 is used for frequency domain configuration
- the first type of time domain resource corresponds to the first configuration
- the second type of time domain resource corresponds to the second configuration
- the first configuration and the second configuration include the first parameter
- the value of the first parameter corresponding to the first configuration is the same as or different from the value of the first parameter corresponding to the second configuration
- the first type of time domain resource and the second type of time domain resource correspond to the third configuration
- the third configuration includes the second parameter
- the third configuration has different interpretation methods for the first type of time domain resource and the second type of time domain resource.
- the terminal device determines the number of random access channel transmission opportunities corresponding to the first type of time domain resources and the number of random access channel transmission opportunities corresponding to the second type of time domain resources according to configuration method one, and determines the positions of the random access channel transmission opportunities corresponding to the first type of time domain resources and the second type of time domain resources according to configuration method two.
- a corresponding random access failure judgment method is designed for the situation where the terminal device uses a random access preamble code transmission counter for the first type of time domain resources and the second type of time domain resources respectively.
- the device further includes: a problem reporting module.
- the problem reporting module is configured to report a random access problem based on a first random access preamble transmission counter and a first threshold, or a second random access preamble transmission counter and a second threshold, wherein the first threshold is related to a first maximum number of times, which is the maximum number of transmissions of a random access preamble corresponding to a first type of time domain resource, and the second threshold is related to a second maximum number of times, which is the maximum number of transmissions of a random access preamble corresponding to a second type of time domain resource; or, report a random access problem based on the first random access preamble transmission counter, the second random access preamble transmission counter, and a third threshold, wherein the third threshold is related to the maximum number of transmissions of a random access preamble corresponding to the first type of time domain resource and the second type of time domain resource; wherein the random access problem is used to indicate that there is an abnormality in the random access process of the terminal device
- FIG21 shows a block diagram of a random access channel transmission device provided by an exemplary embodiment of the present application.
- the device can be implemented as a network device or as a part of a network device through software or hardware or a combination of both.
- the device includes:
- the second receiving module 710 is used to receive a random access channel, which is sent by the terminal device according to relevant parameters of the random access channel when transmitted in the first type of time domain resources and/or relevant parameters when transmitted in the second type of time domain resources.
- the time domain resource includes at least one of the following: a symbol, a symbol group, a time slot, a sub-time slot, a frame, and a sub-frame.
- the specific type of the time domain resource is not limited.
- the first type of time domain resources and the second type of time domain resources can be understood as two different duplex modes, time slots, or symbols.
- the number, position, size, and frequency domain bandwidth of the available uplink resources in the first type of time domain resources and the second type of time domain resources are different; or the number, position, size, and frequency domain bandwidth of the random access channels in the first type of time domain resources and the second type of time domain resources are different.
- the first type of time domain resources are SBFD symbols
- the second type of time domain resources are non-SBFD symbols.
- SBFD symbols are symbols that include at least one of an uplink subband, a downlink subband, and a guard band
- non-SBFD symbols are symbols that do not include the above subbands.
- the relevant parameters include at least one of the following: transmit power; target power level; value of a power ramp counter; value of a random access preamble transmission counter; maximum number of transmissions of a random access preamble; power ramp step of a random access channel; a first parameter, the first parameter is used to indicate the number of frequency-division multiplexed random access channel transmission opportunities in a time unit, for example, a time unit is a time instance; a second parameter, the second parameter is used to indicate the offset value between the lowest random access channel transmission opportunity in the frequency domain dimension and a reference point, the reference point being PRB0 of the uplink BWP.
- the transmit power is used to indicate how much energy the terminal device will use to send the random access channel
- the target power level is used to indicate the target power of the random access channel expected by the receiver of the network device
- the value of the power climb counter is used to indicate the number of power climbs.
- the value of the power climb counter will be increased by 1; the random access preamble transmission counter is used to indicate the number of preamble transmissions during the random access process, that is, the number of random access channel transmissions; the maximum number of random access preamble transmissions is used to indicate the maximum number of preamble transmissions during the entire random access process, that is, the maximum number of random access channel transmissions; the power climb step size of the random access channel is used to indicate the amount of power increase during each power climb.
- the slashed square 10 represents a random access channel transmission opportunity
- the first parameter is 2, which is used to indicate that the number of random access channel transmission opportunities frequency-division multiplexed in one time unit is 2; if the reference point is PRB0 of the active UL BWP (activated uplink BWP), that is, the starting PRB of the active UL BWP, then the offset value between the lowest random access channel transmission opportunity and PRB0 in the frequency domain dimension in FIG6 is the second parameter.
- the relevant parameters of the random access channel during transmission include power-related parameters and/or frequency domain-related parameters.
- the power-related parameters include transmit power and a power ramp counter.
- the specific calculation process of the transmission power is the transmission power calculation process of the terminal device, which will not be repeated here.
- the target power level includes a first target power level and a second target power level
- the first type of time domain resources corresponds to the first target power level
- the second type of time domain resources corresponds to the second target power level
- the second receiving module 710 is used to receive a random access channel, where the random access channel transmission opportunity corresponds to a first type of time domain resource, and the first transmission power of the random access channel is determined by the terminal device based on the first target power level; and/or, to receive a random access channel, where the random access channel transmission opportunity corresponds to a second type of time domain resource, and the second transmission power of the random access channel is determined by the terminal device based on the second target power level.
- the first transmit power is determined by the terminal device based on at least one of a first target power level, a power climb step, a power climb counter, and a preamble code increment;
- the second transmit power is determined by the terminal device based on at least one of a second target power level, a power climb step, a power climb counter, and a preamble code increment; wherein the preamble code increment is determined based on at least one of a random access preamble code format and a subcarrier spacing.
- the first type of time domain resources corresponds to at least one of a first power climb counter, a first random access preamble transmission counter, and a first power climb step;
- the second type of time domain resources corresponds to at least one of a second power climb counter, a second random access preamble transmission counter, and a second power climb step.
- the second receiving module 710 is used to receive a random access channel, where the random access channel transmission opportunity corresponds to a first type of time domain resource, and the first transmit power of the random access channel is determined by the terminal device based on at least one of the first target power level and the first power escalation counter; and/or, receive a random access channel, where the random access channel transmission opportunity corresponds to a second type of time domain resource, and the second transmit power of the random access channel is determined by the terminal device based on at least one of the second target power level and the second power escalation counter.
- the first type of time domain resource corresponds to the first power escalation counter
- the second type of time domain resource corresponds to the second power escalation counter, but the first type of time domain resource and the second type of time domain resource share the same target power level
- the first type of time domain resource corresponds to the first target power level
- the second type of time domain resource corresponds to the second target power level, but the first type of time domain resource and the second type of time domain resource share the same power escalation counter.
- the first type of time domain resource corresponds to the first target power level and the first power escalation counter
- the second type of time domain resource corresponds to the second target power level and the second power escalation counter.
- the first transmit power is a power level determined by the terminal device based on the first target power level, the first power ramp-up step, the first power ramp-up step, and the first power ramp-up step.
- the second transmit power is determined by at least one of a second target power level, a second power ramp-up step, a second power ramp-up counter and a preamble increment; the second transmit power is determined by the terminal device based on at least one of a second target power level, a second power ramp-up step, a second power ramp-up counter and a preamble increment; wherein the preamble increment is determined based on at least one of a random access preamble format and a subcarrier spacing.
- the terminal device keeps the power ramp counter unchanged.
- the terminal device for random access channel transmission, if the corresponding time domain resource type changes compared to the previous transmission, the terminal device resets or initializes the power ramp counter.
- the terminal device when the random access process is started, the terminal device initializes at least one of the first power climb counter, the first random access preamble code transmission counter, the second power climb counter, and the second random access preamble code transmission counter; when the random access channel transmission fails and the random access channel corresponds to the first type of time domain resources, the first random access preamble code transmission counter in the terminal device is increased by 1; when the random access channel transmission fails and the random access channel corresponds to the second type of time domain resources, the second random access preamble code transmission counter in the terminal device is increased by 1; when the random access channel corresponds to the first type of time domain resources and the first random access preamble code transmission counter is greater than the first initial value, the first power climb counter in the terminal device is increased by 1; when the random access channel corresponds to the second type of time domain resources and the second random access preamble code transmission counter is greater than the second initial value, the second power climb counter in the terminal device is increased by 1.
- a random access channel transmission failure is considered to have occurred if the RAR window times out but no random access response containing the first random access preamble identifier is received or contention resolution is unsuccessful.
- the first random access preamble identifier matches the PRACH preamble index sent by the terminal.
- the initial transmission and retransmission of the random access channel correspond to the same time domain resource type; or, the terminal device does not expect the retransmission of the random access channel to change the corresponding time domain resource type relative to the initial transmission or relative to the previous transmission; or, the terminal device does not expect the time domain resource type corresponding to the retransmission of the random access channel to be different from the time domain resource type corresponding to the initial transmission of the random access channel or the previous transmission of the random access channel.
- the apparatus further includes a problem receiving module.
- the problem receiving module is configured to receive a random access problem reported by a terminal device, where the random access problem is reported based on a first random access preamble transmission counter and a first threshold, or a second random access preamble transmission counter and a second threshold, where the first threshold is related to a first maximum number of times, which is the maximum number of transmissions of a random access preamble corresponding to a first type of time domain resource, and the second threshold is related to a second maximum number of times, which is the maximum number of transmissions of a random access preamble corresponding to a second type of time domain resource; or, receive a random access problem reported by a terminal device, where the random access problem is reported based on the first random access preamble transmission counter, the second random access preamble transmission counter, and a third threshold, where the third threshold is related to the maximum number of transmissions of a random access preamble corresponding to the first type of time domain resource and the second type of time domain resource;
- a random access channel transmission opportunity is valid under the following circumstances: the random access channel transmission opportunity is within an uplink symbol; or the random access channel transmission opportunity is within a first type of time domain resource and the random access channel transmission opportunity is within a first frequency domain bandwidth, for example, the random access channel transmission opportunity is within an SBFD symbol and the random access channel transmission opportunity is within the intersection of an uplink subband and an uplink BWP.
- the first type of time domain resource is an SBFD symbol; the random access channel transmission opportunity is within an uplink symbol, which means that the symbols where the random access channel transmission opportunity is located are all uplink symbols; the random access channel transmission opportunity is within the first type of time domain resource, which means that the symbols where the random access channel transmission opportunity is located are all SBFD symbols; that is, if a random access channel transmission opportunity is located in a symbol that includes both an uplink symbol and an SBFD symbol, then the random access channel transmission opportunity is invalid.
- the first frequency domain bandwidth is a subset of the available uplink bandwidth configured by the network device for the terminal device; the first frequency domain bandwidth is the actual available uplink bandwidth determined in the uplink BWP of the terminal device based on the first duplex mode or the first type of time domain resources.
- the first duplex mode or the first type of time domain resources may be SBFD.
- the uplink BWP is an uplink BWP activated for uplink transmissions by the terminal device.
- the first frequency-domain bandwidth is the entire bandwidth or a portion of the uplink BWP. Due to differences in available uplink subbands in different duplex modes or different time-domain resource types, the first frequency-domain bandwidth may dynamically change even for the same terminal device.
- the first frequency domain bandwidth may be understood as an available subband in an uplink BWP, an available uplink subband, an actually available subband, or an actually available uplink subband.
- the network device receives a random access channel.
- the random access channel is sent by the terminal device based on the relevant parameters of the random access channel when it is transmitted in the first type of time domain resources and/or the relevant parameters when it is transmitted in the second type of time domain resources. That is, the random access channel received by the network device is determined by the terminal device based on different relevant parameters corresponding to different time domain resource types.
- the first frequency domain bandwidth is a portion of available subbands within the uplink BWP.
- the first frequency domain bandwidth is the actual available uplink bandwidth of the terminal device. A detailed description of the first frequency domain bandwidth is provided in "1. First Frequency Domain Bandwidth" above and is not repeated here.
- the network device provides a differentiated service for the terminal device for the first type of time domain resources and/or the second type of time domain resources.
- Configuration There are two configuration methods, which are introduced below.
- the apparatus further includes a second sending module.
- the second sending module is used to send a first configuration and a second configuration, where the first configuration and the second configuration are used to configure relevant parameters during random access channel transmission.
- the first configuration corresponds to a first type of time domain resource
- the second configuration corresponds to a second type of time domain resource.
- the time domain resources include at least one of the following: a symbol, a symbol group, a time slot, a sub-time slot, a frame, and a subframe.
- the specific type of time domain resources is not limited.
- the first configuration corresponds to a first type of symbol
- the second configuration corresponds to a second type of symbol.
- the first configuration corresponds to an SBFD symbol
- the second configuration corresponds to a non-SBFD symbol.
- An SBFD symbol is a symbol that includes at least one of an uplink subband, a downlink subband, and a guard band
- a non-SBFD symbol is a symbol that does not include any of the above subbands.
- the configuration of the random access channel includes at least one of a power configuration and a frequency domain configuration.
- the power configuration is used to configure power-related parameters during random access channel transmission
- the frequency domain configuration is used to configure frequency-related parameters during random access channel transmission.
- the first configuration includes at least one of a first power configuration and a first frequency domain configuration
- the second configuration includes at least one of a second power configuration and a second frequency domain configuration.
- the configuration items included in the first configuration and the second configuration are the same, that is, when the first configuration includes the first power configuration, the second configuration should also include the second power configuration; when the first configuration includes the first frequency domain configuration, the second configuration should also include the second frequency domain configuration; when the first configuration includes the first power configuration and the first frequency domain configuration, the second configuration should also include the second power configuration and the second frequency domain configuration.
- the power configuration includes at least one of the following related parameters: target power level; maximum number of transmissions of the random access preamble code; power ramp step size of the random access channel; that is, either the first configuration or the second configuration includes at least one of the following related parameters: target power level; maximum number of transmissions of the random access preamble code; power ramp step size of the random access channel.
- the power-related parameters include at least one of the following parameters: transmit power; target power level; value of the power ramp counter; value of the random access preamble transmission counter; maximum number of transmissions of the random access preamble; and power ramp step size of the random access channel.
- the first configuration and the second configuration only include parameters with different values, wherein the parameters with the same values in the first configuration and the second configuration can be additionally configured by the network device or agreed upon by the communication protocol; for example, the first configuration includes a first target power level, the second configuration includes a second target power level, the maximum number of transmissions of the random access preamble code and the power climbing step of the random access channel are additionally configured by the network device or agreed upon by the communication protocol; or, the first configuration includes the first target power level and the first power climbing step, the second configuration includes the second target power level and the second power climbing step, the maximum number of transmissions of the random access preamble code is additionally configured by the network device or agreed upon by the communication protocol; or, the first configuration includes the first target power level and the first maximum number, the second configuration includes the second target power level and the second maximum number, and the power climbing step of the random access channel is additionally configured by the network device or agreed upon by the communication protocol; or, the first configuration includes the first target power level, the first maximum number and the first power
- the first configuration and the second configuration include all parameters. That is, the first configuration includes a first target power level, a first maximum number of times, and a first power ramp step size, while the second configuration includes a second target power level, a second maximum number of times, and a second power ramp step size.
- the first maximum number of times and the second maximum number of times may be the same or different, and the first power ramp step size and the second power ramp step size may be the same or different.
- the first configuration and the second configuration share some related parameters.
- the terminal device uses a set of power climb counters and preamble transmission counters for the first configuration and the second configuration.
- the shared related parameters corresponding to the first configuration and the second configuration are the power climb counter and the preamble transmission counter.
- the first configuration includes at least one of the following: a first target power level, a first maximum number of times, a first power climb step, a first parameter 1, and a second parameter 1.
- the second configuration includes at least one of the following: a second target power level, a second maximum number of times, a second power climb step, a first parameter 2, and a second parameter 2.
- the first target power level and the second target power level are usually different.
- the first maximum number and the second maximum number may be the same or different, the first power climb step and the second power climb step may be the same or different, the first parameter 1 and the first parameter 2 may be the same or different, and the second parameter 1 and the second parameter 2 may be the same or different.
- the terminal device uses a set of power ramp counters and preamble transmission counters for the first configuration and the second configuration, respectively.
- the first configuration includes at least one of the following: a first target power level, a first maximum number of times, a first power ramp step size, a first power ramp counter, a first preamble transmission counter, a first parameter 1, and a second parameter 1.
- the second configuration includes at least one of the following: a second target power level, a second maximum number of times, a second power ramp step size, a second power ramp counter, a second preamble transmission counter, a first parameter 2, and a second parameter 2.
- the first target power level and the second target power level are typically different.
- the first maximum number and the second maximum number of times can be the same or different, the first power ramp step size and the second power ramp step size can be the same or different, the first power ramp counter and the second power ramp counter are typically different, the first preamble transmission counter and the second preamble transmission counter are typically different, the first parameter 1 and the first parameter 2 can be the same or different, and the second parameter 1 and the second parameter 2 can be the same or different.
- the second sending module is used to send the first configuration parameter and the second configuration parameter, the first configuration parameter corresponds to the first configuration, and the second configuration parameter corresponds to the second configuration; or, send the first configuration parameter and the offset value, the first configuration parameter corresponds to the first configuration, and the configuration parameter after the first configuration parameter is offset based on the offset value corresponds to the second configuration; or, send the second configuration parameter and the offset value, the second configuration parameter corresponds to the second configuration, and the configuration parameter after the second configuration value parameter is offset based on the offset value corresponds to the first configuration; or, send the first configuration parameter, the first configuration parameter corresponds to the first configuration; or, send the second configuration parameter, the second configuration parameter corresponds to the second configuration.
- the first configuration parameter includes a first target power level
- the second configuration parameter includes a second target power level
- the first configuration includes a first target power level
- the offset value includes a target power level offset
- the second target power level corresponding to the second configuration is the sum of the first target power level and the target power level offset
- the first configuration includes a first target power level and a first power climbing step
- the offset value includes a target power level offset and a power climbing step offset
- the second target power level corresponding to the second configuration is the sum of the first target power level and the target power level offset
- the second power climbing step corresponding to the second configuration is the sum of the first target power climbing step and the power climbing step offset.
- a part of the related parameters are configured by a first configuration parameter and a second configuration parameter; another part of the related parameters are configured by a first configuration parameter and an offset value; or, the first part of the related parameters are configured by a first configuration parameter and a second configuration parameter, the second part of the related parameters are configured by a first configuration parameter and an offset value, and the third part of the related parameters are based on additional configuration of the network device or protocol agreement.
- the related parameters include a target power level, a maximum number of transmissions of a random access preamble, and a power ramp step of a random access channel; for the target power level, the first configuration parameter (i.e., the first target power level) and the second configuration parameter (i.e., the second target power level) are used for configuration; or, based on additional configuration of the network device or protocol agreement; or, the first configuration parameter (i.e., the first target power level) and the offset value (i.e., the target power level offset) are used for configuration; for the maximum number of transmissions of a random access preamble, the first configuration parameter (i.e., the first maximum number) and the second configuration parameter (i.e., the second target power level) are used for configuration.
- the first configuration parameter i.e., the first maximum number
- the second configuration parameter i.e., the second target power level
- Configuration is performed using the first configuration parameter (i.e., the second maximum number of times); or, based on additional configuration of the network device or protocol agreement; or, using the first configuration parameter (i.e., the first maximum number of times) and the offset value (i.e., the maximum number offset) for configuration; for the power ramp step of the random access channel, the first configuration parameter (i.e., the first power ramp step) and the second configuration parameter (i.e., the second power ramp step) are configured; or, based on additional configuration of the network device or protocol agreement; or, using the first configuration parameter (i.e., the first power ramp step) and the offset value (i.e., the power ramp step offset) for configuration.
- the first configuration parameter i.e., the second maximum number of times
- the offset value i.e., the maximum number offset
- the first configuration parameter includes a first target power level
- the second configuration parameter includes a second target power level
- the first configuration includes a first target power level
- the offset value includes a target power level offset
- the second target power level corresponding to the second configuration is the sum of the first target power level and the target power level offset
- the first configuration includes a first target power level and a first power climbing step
- the offset value includes a target power level offset and a power climbing step offset
- the second target power level corresponding to the second configuration is the sum of the first target power level and the target power level offset
- the second power climbing step corresponding to the second configuration is the sum of the first target power climbing step and the power climbing step offset.
- the second configuration parameter is the second target power level, denoted as preambleReceivedTargetPower
- the offset value is the target power level offset, denoted as delta_SBFD
- the first target power level corresponding to the first configuration is preambleReceivedTargetPower + delta_SBFD.
- First transmit power preambleReceivedTargetPower+delta_SBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- Second transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- the power configuration of the random access channel can also be implemented as follows: if the time domain resource type used in the current transmission is different from the time domain resource type used in the previous transmission, the power ramp counter is incremented by 1; an offset count is set, recorded as counter_SBFD, and when the time domain resource type used in the initial transmission is the first type of time domain resource, the offset count is initialized to 1; when the time domain resource type used in the initial transmission is the second type of time domain resource, the offset count is initialized to 0; when the time domain resource type used in the retransmission is the first type of time domain resource, the offset count is incremented by 1, that is, counter_SBFD + 1.
- the calculation formulas for the first transmit power and the second transmit power are as follows.
- First transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP+counter_SBFD ⁇ delta_SBFD.
- Second transmit power preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER ⁇ 1) ⁇ PREAMBLE_POWER_RAMPING_STEP.
- the embodiment of the present application provides an apparatus in which the network device sends a first configuration and a second configuration of a random access channel to the terminal device.
- Configuration for random access since the first configuration corresponds to the first type of time domain resources and the second configuration corresponds to the second type of time domain resources; this enables the terminal device to select different configurations for different time domain resource types during the random access process.
- the second sending module is also used to send a third configuration, which is used to configure relevant parameters during random access channel transmission.
- the third configuration corresponds to the first type of time domain resources and the second type of time domain resources.
- a set of configurations ie, a third configuration, may be used in common for the first type of time domain resources and the second type of time domain resources.
- the third configuration includes a second parameter; the second parameter is used to indicate an offset value between a lowest random access channel transmission opportunity in the frequency domain and a reference point.
- the reference point is the lowest PRB of the intersection of the uplink subband and the uplink BWP in the frequency domain; and for the second type of time domain resources, the reference point is PRB0 of the uplink BWP.
- the third configuration also includes a first parameter, which is used to indicate the number of frequency-division multiplexed random access channel transmission opportunities in a time unit, for example, a time unit is a time instance.
- the third configuration includes a first parameter and a second parameter, the first parameter can be recorded as msg1-FDM, and the second parameter can be recorded as msg1-FrequencyStart.
- the first parameter can be recorded as msg1-FDM
- the second parameter can be recorded as msg1-FrequencyStart.
- a group of random access channel transmission opportunities 28 of the first type of time domain resources and a group of random access channel transmission opportunities 29 of the second type of time domain resources are selected, wherein the group of random access channel transmission opportunities 28 includes 4 random access channel transmission opportunities, and the group of random access channel transmission opportunities 29 includes 4 random access channel transmission opportunities.
- Reference point 30 is the lowest PRB of the intersection of the uplink subband and the uplink BWP in the frequency domain dimension
- reference point 31 is PRB0 of the uplink BWP.
- the network device only sets one configuration for the first type of time domain resources and the second type of time domain resources, which can save signaling overhead.
- the terminal device only needs to maintain one configuration and interpret the first type of time domain resources and the second type of time domain resources differently, while still ensuring that all random access channel transmission opportunities are valid and that the random access channel transmission opportunities are at both ends of the uplink BWP or uplink subband, thus avoiding resource fragmentation.
- the second sending module in the above-mentioned configuration method 1 and configuration method 2 can be implemented as the same device or as different devices. That is, a part of the relevant parameters can be configured by configuration method 1, and the other part of the parameters can be configured by configuration method 2; or, the first part of the relevant parameters can be configured by configuration method 1, the second part of the parameters can be configured by configuration method 2, and the third part of the parameters can be based on additional configuration of the network device or protocol agreement.
- the first type of time domain resources corresponds to the first configuration
- the second type of time domain resources corresponds to the second configuration
- the first configuration and the second configuration include the first parameter
- the value of the first parameter corresponding to the first configuration is the same as or different from the value of the first parameter corresponding to the second configuration
- the first type of time domain resources and the second type of time domain resources correspond to the third configuration
- the third configuration includes the second parameter
- the third configuration has different interpretation methods for the first type of time domain resources and the second type of time domain resources.
- the terminal device configures the number of random access channel transmission opportunities corresponding to the first type of time domain resources and the number of random access channel transmission opportunities corresponding to the second type of time domain resources according to the instructions of the second sending module in configuration method one, and configures the positions of the random access channel transmission opportunities corresponding to the first type of time domain resources and the second type of time domain resources according to the instructions of the second sending module in configuration method one.
- FIG22 shows a block diagram of a random access channel transmission apparatus provided by an exemplary embodiment of the present application.
- the apparatus may be implemented as a terminal device, or as a part of a terminal device, through software or hardware, or a combination of both.
- the apparatus includes:
- the third receiving module 810 is used to receive at least one of the first configuration, the second configuration and the third configuration, where the first configuration, the second configuration and the third configuration are used to configure relevant parameters during random access channel transmission, the first configuration corresponds to the first type of time domain resources, the second configuration corresponds to the second type of time domain resources, and the third configuration corresponds to the first type of time domain resources and the second type of time domain resources.
- the time domain resource includes at least one of the following: a symbol, a symbol group, a time slot, a sub-time slot, a frame, and a sub-frame.
- the specific type of the time domain resource is not limited.
- the first type of time domain resources and the second type of time domain resources can be understood as two different duplex modes, time slots, or symbols.
- the number, position, size, and frequency domain bandwidth of the available uplink resources in the first type of time domain resources and the second type of time domain resources are different; or the number, position, size, and frequency domain bandwidth of the random access channels in the first type of time domain resources and the second type of time domain resources are different.
- the first type of time domain resources are SBFD symbols
- the second type of time domain resources are non-SBFD symbols.
- SBFD symbols are symbols that include at least one of an uplink subband, a downlink subband, and a guard band
- non-SBFD symbols are symbols that do not include the above subbands.
- the terminal device receives the first configuration and the second configuration; or, the terminal device receives the third configuration; or, the terminal device receives the first configuration, the second configuration, and the third configuration.
- the first configuration, second configuration and third configuration received by the terminal device can be found in the above "3.1 Configuration method 1" and "3.2 Configuration method 2", which will not be repeated here.
- the terminal device receives at least one of the first configuration, the second configuration, and the third configuration before transmitting the random access channel, wherein the first configuration, the second configuration, and the third configuration are used to configure the corresponding random access channel transmission.
- the first configuration corresponds to the first type of time domain resources
- the second configuration corresponds to the second type of time domain resources
- the third configuration corresponds to the first type of time domain resources and the second type of time domain resources.
- the first configuration and the second configuration correspond to separate configurations
- the third configuration corresponds to a joint configuration. Regardless of separate or joint configuration, the terminal device can select different configurations for different time domain resource types during the random access process.
- FIG23 shows a block diagram of a random access channel transmission apparatus provided by an exemplary embodiment of the present application.
- the apparatus can be implemented as a terminal device, or as a part of a terminal device, through software or hardware, or a combination of both.
- the apparatus includes:
- the transmission module 910 is configured to transmit a random access channel on a valid random access channel transmission opportunity
- a random access channel transmission opportunity is valid in the following cases: the random access channel transmission opportunity is within an uplink symbol; or the random access channel transmission opportunity is within the first type of time domain resources, and the random access channel transmission opportunity is located within the first frequency domain bandwidth.
- the first type of time domain resources are SBFD symbols.
- a random access channel transmission opportunity within an uplink symbol indicates that all symbols containing the random access channel transmission opportunity are uplink symbols.
- a random access channel transmission opportunity within the first type of time domain resources indicates that all symbols containing the random access channel transmission opportunity are SBFD symbols. In other words, if a random access channel transmission opportunity is located within a symbol that includes both uplink symbols and SBFD symbols, then the random access channel transmission opportunity is invalid.
- the first frequency domain bandwidth is a subset of the available uplink bandwidth configured by the network device for the terminal device; the first frequency domain bandwidth is the actual available uplink bandwidth determined in the uplink BWP of the terminal device based on the first duplex mode or the first type of time domain resources.
- the first duplex mode or the first type of time domain resources may be SBFD.
- the uplink BWP is an uplink BWP activated for uplink transmissions by the terminal device.
- the first frequency-domain bandwidth is the entire bandwidth or a portion of the uplink BWP. Due to differences in available uplink subbands in different duplex modes or different time-domain resource types, the first frequency-domain bandwidth may dynamically change even for the same terminal device.
- the first frequency domain bandwidth may be understood as an available subband in an uplink BWP, an available uplink subband, an actually available subband, or an actually available uplink subband.
- the first frequency domain bandwidth is a portion of available subbands within the uplink BWP.
- the first frequency domain bandwidth is the actual available uplink bandwidth of the terminal device. A detailed description of the first frequency domain bandwidth is provided in "1. First Frequency Domain Bandwidth" above and is omitted here.
- the device provided in the embodiment of the present application shows that the transmission condition of the random access channel is transmitted on a valid random access channel transmission opportunity, and gives the transmission condition of a valid random access channel transmission opportunity, so that the terminal device can successfully transmit when transmitting on the random access channel.
- the device provided in the above embodiment is only illustrated by the division of the above functional modules.
- the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.
- FIG 24 shows a schematic diagram of the structure of a terminal device provided by an exemplary embodiment of the present application.
- the terminal device 1000 can be used to execute the method steps performed by the terminal device in the above-mentioned embodiment.
- the terminal device 1000 may include: a processor 1001, a transceiver 1002, and a memory 1003.
- the processor 1001 can be used to control transmission and/or reception.
- the transceiver 1002 can be used to implement transmission and/or reception functions, such as implementing the functions of at least one of the first transmission module 610, the first reception module, the problem reporting module, the third reception module 810, and the transmission module 910.
- the processor 1001 includes one or more processing cores.
- the processor 1001 executes various functional applications and information processing by running software programs and modules.
- the transceiver 1002 may include a receiver and a transmitter.
- the receiver and the transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna.
- the memory 1003 may be connected to the processor 1001 and the transceiver 1002 .
- the memory 1003 may be used to store a computer program executed by the processor, and the processor 1001 is used to execute the computer program to implement each step in the above method embodiment.
- the memory 1003 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the volatile or non-volatile storage device includes but is not limited to: a magnetic disk or optical disk, an electrically erasable programmable read-only memory, an erasable programmable read-only memory, a static access memory, a read-only memory, a magnetic memory, a flash memory, and a programmable read-only memory.
- the processor 1001 is configured to send a random access channel according to relevant parameters of the random access channel when transmitted in the first type of time domain resources and/or relevant parameters of the random access channel when transmitted in the second type of time domain resources.
- the processor 1001 is used to receive at least one of a first configuration, a second configuration, and a third configuration, where the first configuration, the second configuration, and the third configuration are used to configure relevant parameters during random access channel transmission, the first configuration corresponds to a first type of time domain resource, the second configuration corresponds to a second type of time domain resource, and the third configuration corresponds to both the first type of time domain resource and the second type of time domain resource.
- the processor 1001 is configured to transmit a random access channel on a valid random access channel transmission opportunity.
- FIG. 25 shows a schematic diagram of the structure of a network device provided by an exemplary embodiment of the present application.
- Network device 1100 may be used to execute the method steps performed by the network device in the above-described embodiments.
- Network device 1100 may include a processor 1101, a transceiver 1102, and a memory 1103.
- Processor 1101 may be used to control transmission and/or reception.
- Transceiver 1102 may be used to implement transmission and/or reception functions, such as implementing the functions of at least one of the above-described second receiving module 710, the question receiving module, and the second transmitting module.
- the processor 1101 includes one or more processing cores.
- the processor 1101 executes various functional applications and information processing by running software programs and modules.
- the transceiver 1102 may include a receiver and a transmitter.
- the transceiver 1102 may include a wired communication component, which may include a wired communication chip and a wired interface (such as an optical fiber interface).
- the transceiver 1102 may also include a wireless communication component, which may include a wireless communication chip and a radio frequency antenna.
- the memory 1103 may be connected to the processor 1101 and the transceiver 1102 .
- the memory 1103 may be used to store a computer program executed by the processor, and the processor 1101 is used to execute the computer program to implement each step performed by the network device in the above method embodiment.
- the memory 1103 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disk or optical disk, electrically erasable programmable read-only memory, erasable programmable read-only memory, static random access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.
- the processor 1101 is used to receive a random access channel, which is sent by the terminal device based on relevant parameters of the random access channel when transmitted in the first type of time domain resources and/or relevant parameters when transmitted in the second type of time domain resources.
- the present application also provides a computer-readable storage medium, which stores a computer program.
- the computer program is used to be executed by a processor to implement the above-mentioned random access channel transmission method.
- the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives) or an optical disk.
- the random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).
- An embodiment of the present application further provides a chip, which includes a programmable logic circuit and/or program instructions, and when the chip is running, is used to implement the above-mentioned random access channel transmission method.
- An embodiment of the present application also provides a computer program product, which includes a computer program stored in a computer-readable storage medium.
- a processor reads and executes the computer program from the computer-readable storage medium to implement the above-mentioned random access channel transmission method.
- indication can be a direct indication, an indirect indication, or an indication of an association.
- “A indicates B” can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.
- corresponding may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.
- plural refers to two or more.
- “And/or” describes a relationship between associated objects, indicating that three possible relationships exist. For example, “A and/or B” can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character “/” generally indicates an "or” relationship between the associated objects.
- step numbers described in this document only illustrate a possible execution order between the steps.
- the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order of the diagram.
- the embodiments of the present application are not limited to this.
- Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another.
- the storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.
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Abstract
本申请公开了一种随机接入信道的传输方法、装置、设备、介质及程序产品,涉及通信领域。该方法包括:根据所述随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送所述随机接入信道。本申请提供的方法,能够使得终端设备可以针对不同类型的时域资源,确定随机接入信道针对不同时域资源类型传输时的相关参数,实现针对不同的时域资源类型的差异化设计。
Description
本申请涉及通信领域,特别涉及一种随机接入信道的传输方法、装置、设备、介质及程序产品。
随机接入是终端设备与网络设备之间建立无线链路的必经过程。终端设备发送随机接入信道需要确定相关参数。
然而由于新空口(New Radio,NR)系统中的双工方式在不断设计优化,如何设计随机接入信道的传输方法以实现随机接入信道基于不同的双工方式进行发送,是目前亟需解决的问题。
发明内容
本申请实施例提供了一种随机接入信道的传输方法、装置、设备、介质及程序产品,所述技术方案如下:
根据本申请的一个方面,提供了一种随机接入信道的传输方法,所述方法由终端设备执行,所述方法包括:
根据所述随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送所述随机接入信道。
根据本申请的一个方面,提供了一种随机接入信道的传输方法,所述方法由网络设备执行,所述方法包括:
接收所述随机接入信道,所述随机接入信道是终端设备根据所述随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数发送的。
根据本申请的一个方面,提供了一种随机接入信道的传输方法,所述方法由终端设备执行,所述方法包括:
接收第一配置、第二配置与第三配置中的至少之一,所述第一配置、所述第二配置和所述第三配置用于配置所述随机接入信道传输时的相关参数,所述第一配置对应所述第一类型时域资源,所述第二配置对应所述第二类型时域资源,所述第三配置对应所述第一类型时域资源与所述第二类型时域资源。
根据本申请的一个方面,提供了一种随机接入信道的传输方法,所述方法由终端设备执行,所述方法包括:
在一个有效的随机接入信道传输机会上传输随机接入信道;
其中,一个随机接入信道传输机会在以下情况下是有效的:所述随机接入信道传输机会在上行符号内;或,所述随机接入信道传输机会在第一类型时域资源内,且所述随机接入信道传输机会位于第一频域带宽内。
根据本申请的一个方面,提供了一种随机接入信道的传输装置,所述装置包括:
第一发送模块,用于根据所述随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送所述随机接入信道。
根据本申请的一个方面,提供了一种随机接入信道的传输装置,所述装置包括:
第二接收模块,用于接收所述随机接入信道,所述随机接入信道是终端设备根据所述随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数发送的。
根据本申请的一个方面,提供了一种随机接入信道的传输装置,所述装置包括:
第三接收模块,用于接收第一配置、第二配置与第三配置中的至少之一,所述第一配置、所述第二配置和所述第三配置用于配置所述随机接入信道传输时的相关参数,所述第一配置对应所述第一类型时域资源,所述第二配置对应所述第二类型时域资源,所述第三配置对应所述第一类型时域资源与所述第二类型时域资源。
根据本申请的一个方面,提供了一种随机接入信道的传输装置,所述装置包括:
传输模块,用于在一个有效的随机接入信道传输机会上传输随机接入信道;
其中,一个随机接入信道传输机会在以下情况下是有效的:所述随机接入信道传输机会在上行符号内;或,所述随机接入信道传输机会在第一类型时域资源内,且所述随机接入信道传输机会位于第一频域带宽内。
根据本申请的一个方面,提供了一种终端设备,所述终端设备包括:
处理器;与所述处理器相连的收发器;用于存储所述处理器的可执行指令的存储器;
其中,所述处理器被配置为加载并执行所述可执行指令以实现上述随机接入信道的传输方法。
根据本申请的一个方面,提供了一种网络设备,所述网络设备包括:
处理器;与所述处理器相连的收发器;用于存储所述处理器的可执行指令的存储器;
其中,所述处理器被配置为加载并执行所述可执行指令以实现上述随机接入信道的传输方法。
根据本申请的一个方面,提供了一种计算机可读存储介质,所述计算机可读存储介质中存储有至少一段程序,所述至少一段程序由处理器加载并执行以实现上述随机接入信道的传输方法。
根据本申请的一个方面,提供了一种芯片,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片在终端设备或网络设备上运行时,用于实现上述随机接入信道的传输方法。
根据本申请的一个方面,提供了一种计算机程序产品,所述计算机程序产品包括计算机指令,所述计算机指令存储在计算机可读存储介质中,处理器从所述计算机可读存储介质中获取所述计算机指令,所述处理器执行所述计算机指令以实现上述随机接入信道的传输方法。
本申请实施例提供的技术方案至少包括如下有益效果:
终端设备根据随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送随机接入信道,也即终端设备针对不同的时域资源类型能够确定每种时域资源类型下用于传输的相关参数,并根据该相关参数发送随机接入信道。由于不同的时域资源类型中可用上行资源的数量、位置、大小、频域带宽等是不同的,终端设备在使用不同的时域资源类型时域资源传输所受到的干扰会有不同的,因此不同的时域资源类型对应的链路质量也不同;终端设备针对不同的时域资源类型确定不同的用于传输的相关参数,能够提高传输成功率。
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1示出了相关技术提供的子带非重叠全双工的示意图;
图2示出了相关技术提供的物理随机接入信道(Physical Random Access Channel,PRACH)频域资源配置的示意图;
图3示出了相关技术提供的PRACH功率控制的示意图;
图4示出了本申请一个示例性实施例提供的移动通信系统的示意图;
图5示出了本申请一个示例性实施例提供的随机接入信道的传输方法的流程图;
图6示出了本申请一个示例性实施例提供的随机接入信道的传输方法的示意图;
图7示出了本申请一个示例性实施例提供的随机接入信道的传输方法的示意图;
图8示出了本申请一个示例性实施例提供的随机接入信道的传输方法的示意图;
图9示出了本申请一个示例性实施例提供的随机接入信道的传输方法的示意图;
图10示出了本申请一个示例性实施例提供的随机接入信道的传输方法的示意图;
图11示出了本申请一个示例性实施例提供的随机接入信道的传输方法的示意图;
图12示出了本申请一个示例性实施例提供的随机接入信道的传输方法的示意图;
图13示出了本申请一个示例性实施例提供的随机接入信道的传输方法的示意图;
图14示出了本申请一个示例性实施例提供的随机接入信道的传输方法的示意图;
图15示出了本申请一个示例性实施例提供的随机接入信道的传输方法的示意图;
图16示出了本申请一个示例性实施例提供的随机接入信道的传输方法的示意图;
图17示出了本申请一个示例性实施例提供的随机接入信道的传输方法的流程图;
图18示出了本申请一个示例性实施例提供的随机接入信道的传输方法的流程图;
图19示出了本申请一个示例性实施例提供的随机接入信道的传输方法的流程图;
图20示出了本申请一个示例性实施例提供的随机接入信道的传输装置的结构框图;
图21示出了本申请一个示例性实施例提供的随机接入信道的传输装置的结构框图;
图22示出了本申请一个示例性实施例提供的随机接入信道的传输装置的结构框图;
图23示出了本申请一个示例性实施例提供的随机接入信道的传输装置的结构框图;
图24示出了本申请一个示例性实施例提供的终端设备的结构示意图;
图25示出了本申请一个示例性实施例提供的网络设备的结构示意图。
为使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请实施方式作进一步地详细描述。这里将详细地对示例性实施例进行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致
的装置和方法的例子。
在本申请使用的术语是仅仅出于描述特定实施例的目的,而非旨在限制本申请。在本申请和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式,除非上下文清楚地表示其他含义。还应当理解,本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解,尽管在本申请可能采用术语第一、第二、第三等来描述各种信息,但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如,在不脱离本申请范围的情况下,第一信息也可以被称为第二信息,类似地,第二信息也可以被称为第一信息。取决于语境,如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
本申请的一些实施例中描述的技术方案可以适用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、先进的长期演进(Advanced Long Term Evolution,LTE-A)系统、新无线(New Radio,NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)系统、非地面通信网络(Non-Terrestrial Networks,NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、第五代通信(5th-Generation,5G)系统,蜂窝物联网系统,蜂窝无源物联网系统,也可以适用于5G NR系统后续的演进系统,还可以适用于6G以及后续的演进系统。
应当理解,在本申请的一些实施例中,“5G”也可以称为“5G NR”或者“NR”。
应当理解,在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
本申请实施例中,“预定义”可以通过在设备(例如,包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现,本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。
本申请实施例中,“协议”可以指通信领域的标准协议,例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议,本申请对此不做限定。
接下来,对子带非重叠全双工(SubBand non-overlapping Full Duplex,SBFD)进行介绍:
为了克服时分双工(Time Division Duplexing,TDD)技术中,上行(Uplink,UL)资源分配较少导致的上行覆盖较弱、上行时延大、上行容量不够等问题,SBFD技术被提出。SBFD技术指在同一个子帧或同一个时隙或同一个符号的不同子带上可以同时发送数据和接收数据的技术。SBFD技术主要用于网络设备侧,终端设备(User Equipment,UE)侧仍保持当前状态,即同一个子帧/时隙/符号只发送数据或只接收数据。SBFD技术也可以被称为交叉双工(Cross Division Duplex,XDD)技术。
示例性的,SBFD技术如图1所示,将一个下行(Downlink,DL)时域单元对应的频域资源的一部分配置为上行子带。如图1(a)所示,一个下行时域单元对应的频域资源的中间子带被配置为上行子带,或者,如图1(b)所示,一个下行时域单元对应的频域资源的上部分子带被配置为上行子带。
一般来说,SBFD操作满足以下几点:
·SBFD在一个TDD载波内操作。
·SBFD方案设计在具有对齐的中心频点的单一上下行BWP(Bandwidth Part,部分带宽)对内。
·在一个TDD载波内,一个SBFD符号(包括传统上行符号)上最多有一个上行子带。这一个上行子带可以位于TDD载波的中间,也可以位于TDD载波的两边。此外,协议约定上行传输只能限制在UL子带内,下行接收只能限制在DL子带内。
接下来,对物理随机接入信道(Physical Random Access Channel,PRACH)进行介绍:
PRACH相关参数通过随机接入通用配置(RACH-ConfigGeneric)来配置,接下来从时域资源配置、频域资源配置和功率控制三个方面对RACH-ConfigGeneric中的参数进行说明。
PRACH时域资源配置:
在5G NR中,随机接入信道对应的时域资源是根据PRACH配置表格确定的,其中,存在三个PRACH配置表格,分别对应不同的频段和频段制式:PRACH配置表格1为FR1(Frequency Range 1,频段1)上FDD(Frequency Division Duplexing,频分双工)频段的PRACH配置,PRACH配置表格2为FR1上TDD频段的PRACH配置,PRACH配置表格3为FR2上的PRACH配置。终端设备会根据其驻留的小区所处的频段和频段制式,确定在接收PRACH配置时应该使用的PRACH配置表格。
在为终端设备配置小区随机接入信道对应的时域资源时,通过物理随机接入信道-配置索引
(prach-ConfigurationIndex)这一相关参数指示出相应的PRACH配置表格中的一个序号。终端按照相应的PRACH配置表格,获取该小区的PRACH时域资源配置信息,该时域资源配置信息包括:
1.PRACH序列的格式:在FR1上会配置所有长、短序列格式,在FR2上仅会配置短序列格式。
2.配置周期和系统帧号:PRACH传输机会的重复周期和所在的系统帧号,NR中支持10ms,20ms,40ms,80ms和160ms的周期配置。
3.子帧/时隙序号:PRACH传输机会在系统帧内出现的子帧号或时隙的序号;其中,FR1上指示的是子帧号,也是15KHz时隙的序号;在FR2上则是按60KHz时隙序号指示。
4.对于短序列还会配置出在一个子帧或是一个60KHz时隙中有几个PRACH时隙,当随机接入序列配置了更大的子载波间隔时,一个子帧或是一个60KHz时隙中会有2个PRACH时隙,当指示值为2时,2个PRACH时隙均可使用;指示有1个PRACH时隙时,默认使用靠后的PRACH时隙。
5.起始符号和持续次数:在一个PRACH时隙内PRACH传输机会(PRACH transmission occasion)的起始位置和持续次数,持续次数即连续出现的次数。即使在相同的序列格式、相同周期和相同时隙号的配置下,也可以有不同的起始位置和持续次数配置,这样能够提供更多样的PRACH密度配置。
PRACH频域资源配置:
在频域维度上,NR支持配置1、2、4或8个FDM(Frequency Division Multiplexing,频分多路复用)的PRACH资源,通过消息1-频分多路复用(msg1-FDM)这一相关参数配置,来扩充PRACH容量,即确定在频域维度上PRACH传输机会的个数,也即确定在频域维度上PRACH资源的个数,当在频域维度上配置的PRACH资源为1个以上时,这些PRACH资源在频域维度上连续分布。网络设备通过消息1-频率起始(msg1-FrequencyStart)这一相关参数通知终端设备在频域维度上第一个PRACH传输机会的起始PRB(Physical Resource Blocks,物理资源块)相对于BWP的起始PRB的偏移。例如,如图2所示,通过msg1-FDM和msg1-FrequencyStart选择得到在频域维度上的PRACH传输机会。
PRACH功率控制:
PRACH的功率控制采用开环功率控制的机制,UE基于网络设备配置的期望接收功率以及由下行参考信号测量得到的路径损耗等因素设定PRACH的发送功率:
终端通过以下公式确定PRACH的发送功率:
PPRACH,b,f,c(i)=min{PCMAX,f,c(i),PPRACH,target,f,c+PLb,f,c}[dBm]
PPRACH,b,f,c(i)=min{PCMAX,f,c(i),PPRACH,target,f,c+PLb,f,c}[dBm]
其中,f为载波(carrier);c为服务小区(serving cell);b为BWP;i为PRACH传输机会;PCMAX,
f,c(i)为UE配置的最大输出功率;PPRACH,target,f,c为前导目标功率;PLb,f,c为路损。
前导目标功率PREAMBLE_RECEIVED_TARGET_POWER的计算公式如下所示。
PREAMBLE_RECEIVED_TARGET_POWER=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP;
其中,前导目标接收功率(preambleReceivedTargetPower)是通过信令配置的,也可以称为目标功率等级;前导码增量(DELTA_PREAMBLE)为基于随机接入前导码格式、使用的子载波间隔、协议约定的固定值中的至少之一确定;重传次数(PREAMBLE_POWER_RAMPING_COUNTER),也可以称为前导功率爬升次数,是根据功率爬升计数器确定的,在每次随机接入过程开始时,初始化为1;功率爬升步长(PREAMBLE_POWER_RAMPING_STEP),也可以称为前导功率爬升步长,用于指示功率爬升的步长。
在随机接入过程中,若UE发送了PRACH但未接收到网络的RAR(Random Access Response,随机接入响应)响应或没有成功接收到冲突解决消息,那么UE需要重发PRACH。当NR UE支持多个发射波束时,在进行重传时,若发射波束保持不变,则重传的PRACH发射功率在上一次发送的PRACH发射功率的基础上进行爬升,可以理解为重传次数加1,也可以理解为功率爬升计数器加1,直至成功完成随机接入过程。但在UE切换发射波束时,综合考虑波束切换时的干扰控制和随机接入的时延,协议约定功率爬升的计数器保持不变。如图3所示,斜线椭圆11表示本次传输使用的发射波束,虚线椭圆12表示本次传输未被使用的发射波束,在初传、第一次重传以及第二次重传时,使用的发射波束为同一个,因此,在进行重传时功率爬升计数器加1;而在第三次重传时,使用的发射波束相较于上一次传输所使用的发射波束发生改变,因此,第三次重传时功率爬升计数器不变;在第四次重传时,使用的发射波束未发生改变,功率爬升计数器加1。
图4示出了本申请一个示例性实施例提供的移动通信系统的示意图。该移动通信系统包括网络设备110与终端设备120,还可以包括或不包括终端设备130,本申请对此不作限定。
本申请中的网络设备110提供无线通信功能,该网络设备110包括但不限于:演进型节点B(Evolved Node B,eNB)、无线网络控制器(Radio Network Controller,RNC)、节点B(Node B,NB)、基站控制器(Base Station Controller,BSC)、基站收发台(Base Transceiver Station,BTS)、家庭基站(例如,Home Evolved Node B,或Home Node B,HNB)、基带单元(BaseBand Unit,BBU)、无线保真(Wireless
Fidelity,Wi-Fi)系统中的接入点(Access Point,AP)、无线中继节点、无线回传节点、传输点(Transmission Point,TP)或者发送接收点(Transmission and Reception Point,TRP)等,还可以为第五代(5th Generation,5G)移动通信系统中的下一代节点B(Next Generation Node B,gNB)或传输点(TRP或TP),或者,为5G系统中的基站的一个或一组(包括多个天线面板)天线面板,或者,还可以为构成gNB或传输点的网络节点,如基带单元(BBU)或分布式单元(Distributed Unit,DU)等,或者超5代移动通信系统(Beyond Fifth Generation,B5G)、第六代(6th Generation,6G)移动通信系统中的基站等,或者核心网(Core Network,CN)、前传(Fronthaul)、回传(Backhaul)、无线接入网(Radio Access Network,RAN)、网络切片等,或者终端设备的服务小区、主小区(Primary Cell,PCell)、主辅小区(Primary Secondary Cell,PSCell)、特殊小区(Special Cell,SpCell)、辅小区(Secondary Cell,SCell)、邻小区等。
本申请中的终端设备120,或称用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理、用户装置。该终端包括但不限于:手持设备、可穿戴设备、车载设备和物联网设备等,例如:手机、平板电脑、电子书阅读器、膝上便携计算机、台式计算机、电视机、游戏机、移动互联网设备(Mobile Internet Device,MID)、增强现实(Augmented Reality,AR)终端、虚拟现实(Virtual Reality,VR)终端和混合现实(Mixed Reality,MR)终端、扩展现实(Extended Reality,XR)终端、迷惑现实(Baffle Reality,BR)终端、影像现实(Cinematic Reality,CR)终端、蒙蔽现实(Deceive Reality,DR)终端、可穿戴设备、手柄、电子标签、控制器、工业控制(Industrial Control)中的无线终端、自动驾驶(Self Driving)中的无线终端、远程医疗(Remote Medical)中的无线终端、智能电网(Smart Grid)中的无线终端、运输安全(Transportation Safety)中的无线终端、智慧城市(Smart City)中的无线终端、智慧家庭(Smart Home)中的无线终端、远程手术(Remote Medical Surgery)中的无线终端、蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)、电视机顶盒(Set Top Box,STB)、用户驻地设备(Customer Premise Equipment,CPE)等。
在一些实施例中,网络设备110与终端设备120之间通过某种空口技术互相通信,例如Uu接口。
示例性的,网络设备110与终端设备120之间存在两种通信场景:上行通信场景与下行通信场景。其中,上行通信,或称为上行传输,是指向网络设备110发送信号或数据;下行通信,或称为下行传输,是指向终端设备120发送信号或数据。
在一些实施例中,终端设备120与终端设备130之间通过某种空口技术互相通信,例如PC5接口。
示例性的,终端设备120与终端设备130之间存在两种通信场景:第一侧行通信场景与第二侧行通信场景。其中,第一侧行通信是指终端设备120向终端设备130发送信号;第二侧行通信是指终端设备130向终端设备120发送信号。
在一些实施例中,终端设备120与终端设备130均在网络覆盖范围内且位于相同的小区,或者终端设备120与终端设备130均在网络覆盖范围内但位于不同的小区,或者终端设备120在网络覆盖范围内但终端设备130在网络覆盖范围外。
本申请的一些实施例中,“NR”也可以称为5G NR系统或者5G系统。其中,5G移动通信系统可以包括非独立组网(Non-StandAlone,NSA)和/或独立组网(StandAlone,SA)。
本申请中实施例提供的技术方案还可以应用于机器类通信(Machine Type Communication,MTC)、机器间通信长期演进技术(Long Term Evolution-Machine,LTE-M)、设备到设备(Device to Device,D2D)网络、机器到机器(Machine to Machine,M2M)网络、物联网(Internet of Things,IoT)网络或者其他网络。其中,IoT网络例如可以包括车联网。其中,车联网系统中的通信方式统称为车到其他设备(Vehicle to X,V2X,X可以代表任何事物),例如,该V2X可以包括:车辆到车辆(Vehicle to Vehicle,V2V)通信、车辆与基础设施(Vehicle to Infrastructure,V2I)通信、车辆与行人之间的通信(Vehicle to Pedestrian,V2P)或车辆与网络(Vehicle to Network,V2N)通信等。
本申请实施例提供的移动通信系统,可以应用于但不限于以下通信场景中的至少一种:上行通信场景、下行通信场景、侧行通信场景。
图5示出了本申请一个示例性实施例提供的随机接入信道的传输方法的流程图。该方法由上述终端设备执行,该方法包括:
步骤230:根据随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送随机接入信道。
在一些实施例中,时域资源包括如下至少之一:符号、符号组、时隙、子时隙、帧、子帧。本申请实施例中对时域资源的具体类型不加以限定。
在一些实施例中,第一类型时域资源和第二类型时域资源可以理解为两种不同的双工方式、时隙或符号等。第一类型时域资源和第二类型时域资源中可用上行资源的数量、位置、大小、频域带宽是不同的;
或者说第一类型时域资源和第二类型时域资源中随机接入信道的数量、位置、大小、频域带宽是不同的。例如第一类型时域资源为SBFD符号,第二类型时域资源为non-SBFD符号。其中,SBFD符号为包括上行子带、下行子带、保护带中至少之一的符号,non-SBFD符号为不包括以上子带的符号。
在一些实施例中,相关参数包括如下至少之一:发送功率;目标功率等级;功率爬升计数器的取值;随机接入前导码传输计数器的取值;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长;第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数,比如一个时间单位是一个时间实例(time instance);第二参数,第二参数用于指示在频域上的最低随机接入信道传输机会和参考点之间的偏移值,参考点是上行BWP的PRB0,也即上行BWP的起始PRB。其中,发送功率用于指示终端设备会使用多少能量发送随机接入信道;目标功率等级用于指示网络设备的接收机所期望的随机接入信道的目标功率;功率爬升计数器的取值用于指示功率爬升次数,一般来说,每次随机接入失败后,功率爬升计数器的取值会加1;随机接入前导码传输计数器用于指示随机接入过程中前导码的传输次数,即随机接入信道的发送次数;随机接入前导码的最大传输次数用于指示整个随机接入过程中前导码的最大传输次数,也即随机接入信道的最大发送次数;随机接入信道的功率爬升步长用于指示每次功率爬升时的功率提升量。
示例性的,如图6所示,斜线方块10表示一个随机接入信道传输机会,第一参数为2,用于表示在一个时间单位中频分复用的随机接入信道传输机会的个数为2;若参考点为active UL BWP(激活的上行BWP)的PRB0,也即active UL BWP的起始PRB,则图6中在频域维度上最低的随机接入信道传输机会与PRB0之间的偏移值为第二参数。
在一些实施例中,随机接入信道在传输时的相关参数包括功率相关参数和/或频域相关参数。
在一些实施例中,一个随机接入信道传输机会在以下情况下是有效的:随机接入信道传输机会在上行符号内;或,随机接入信道传输机会在第一类型时域资源内,且随机接入信道传输机会位于第一频域带宽内,例如随机接入信道传输机会在第一类型时域资源内,且随机接入信道传输机会位于上行子带和上行BWP的交集内。其中,第一类型时域资源为SBFD符号;随机接入信道传输机会在上行符号内,表示的是,随机接入信道传输机会所在的符号都是上行符号;随机接入信道传输机会在第一类型时域资源内,表示的是,随机接入信道传输机会所在的符号都是SBFD符号;也就是说,如果一个随机接入信道传输机会,所在的符号包括上行符号和SBFD符号,那么这个随机接入信道传输机会是无效的。
在一些实施例中,第一频域带宽是网络设备为终端设备配置的可用上行带宽的子集;第一频域带宽是基于第一双工方式或第一类型时域资源在终端设备的上行BWP中确定的实际可用上行带宽。第一双工方式或第一类型时域资源可以是SBFD。
在一些实施例中,上行BWP是为终端设备的上行传输激活的上行BWP。第一频域带宽是上行BWP的全部带宽或一部分带宽。由于不同的双工方式或不同的时域资源类型内的可用上行子带不同,即便是针对同一终端设备,第一频域带宽也可能是动态变化的。
在一些实施例中,第一频域带宽可理解为上行BWP中的可用子带、可用上行子带、实际可用子带或实际可用上行子带。
综上所述,本申请实施例提供的方法,终端设备根据随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送随机接入信道,也即终端设备针对不同的时域资源类型能够确定每种时域资源类型下用于传输的相关参数,并根据该相关参数发送随机接入信道。
1.第一频域带宽
在一个可选的实施例中,第一频域带宽是上行BWP内的一部分可用子带。第一频域带宽是终端设备的实际可用上行带宽。第一频域带宽包括如下至少之一:
·上行子带;
·上行BWP;
·真实子带(Actual subband);
·上行子带和上行BWP的交集;
·真实上行子带,真实上行子带是上行子带(也称nominal subband)和上行BWP的交集;
·真实上行BWP,真实上行BWP是上行子带和上行BWP的交集;
·上行BWP内的上行子带部分;
·上行BWP内的可用上行子带部分;
·第一类型时域资源内上行BWP中的上行子带部分;
·第一类型时域资源内上行BWP中的可用上行子带部分。
在一些实施例中,第一频域带宽是第二频域带宽和第三频域带宽的交集。第二频域带宽是网络设备或通信协议为终端设备配置的激活上行带宽;第三频域带宽是当前使用的双工方式或时域资源类型中的上行
子带,通常由蜂窝通信系统的相关配置来确定。第二频域带宽和第三频域带宽的交集是终端设备的实际可用上行带宽,也即第一频域带宽。
其中,第二频域带宽可以称为上行BWP、上行带宽、激活上行BWP、激活BWP、激活上行带宽等等同称呼中的任意一种。第三频域带宽可以称为子带、上行子带、名义上行子带、帧结构内的上行子带、第一类型时域资源内的上行子带等等同称呼中的任意一种。第一类型时域资源为包含上行子带和/或下行子带的时域资源类型。比如,第一类型时域资源为SBFD符号、SBFD时隙、SBFD子帧中的至少一种。
以第二频域带宽是上行BWP,第三频域带宽是上行子带,第一频域带宽是上行子带与上行BWP的交集。由于上行BWP和上行子带的位置可能存在多种可能性,示例性表示如下:
如图7所示,在一些示例中,上行子带完全落入上行BWP内,第一频域带宽即为上行子带所对应的频域带宽。
如图8所示,在一些实施例中,上行子带未完全落入上行BWP内,第一频域带宽即为上行子带和上行BWP的交集。
如图9所示,在一些实施例中,上行子带和上行BWP完全相同,第一频域带宽即为上行子带或上行BWP所对应的频域带宽。
在一些实施例中,随机接入信道在传输时的相关参数包括功率相关参数和/或频域相关参数。接下来对功率相关参数和频域相关参数分别进行具体介绍。
2.1功率相关参数。
功率相关参数包括如下参数中的至少之一:发送功率;目标功率等级;功率爬升计数器的取值;随机接入前导码传输计数器的取值;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长。
首先示出发送功率的两种计算方式。
发送功率的计算方式一:
在一些实施例中,目标功率等级包括第一目标功率等级和第二目标功率等级,第一类型时域资源对应第一目标功率等级,第二类型时域资源对应第二目标功率等级;在随机接入信道传输机会对应第一类型时域资源的情况下,发送随机接入信道,随机接入信道的第一发送功率是基于第一目标功率等级确定的;和/或,在随机接入信道传输机会对应第二类型时域资源的情况下,发送随机接入信道,随机接入信道的第二发送功率是基于第二目标功率等级确定的。也即,在本次传输所使用的随机接入信道传输机会对应第一类型时域资源的情况下,发送随机接入信道,随机接入信道的第一发送功率是基于第一目标功率等级确定的;和/或,在本次传输所使用的随机接入信道传输机会对应第二类型时域资源的情况下,发送随机接入信道,随机接入信道的第二发送功率是基于第二目标功率等级确定的。
在一些实施例中,第一发送功率是基于第一目标功率等级、功率爬升步长、功率爬升计数器和前导码增量中的至少之一确定的;第二发送功率是基于第二目标功率等级、功率爬升步长、功率爬升计数器和前导码增量中的至少之一确定的;其中,前导码增量是基于随机接入前导码格式、子载波间隔中的至少之一确定的。
在一些实施例中,第一发送功率为第一目标功率等级、功率爬升量与前导码增量的和;第二发送功率为第二目标功率等级、功率爬升量与前导码增量的和;功率爬升量是根据功率爬升计数器和功率爬升步长确定的。
示例性的,目标功率等级包括第一目标功率等级和第二目标功率等级,第一类型时域资源对应第一目标功率等级,第二类型时域资源对应第二目标功率等级;随机接入前导码的最大传输次数、随机接入信道的功率爬升步长、前导码增量由网络设备额外配置或由通信协议约定,也即针对第一类型时域资源和第二类型时域资源相关参数{随机接入前导码的最大传输次数,随机接入信道的功率爬升步长,前导码增量}是相同的,第一类型时域资源为SBFD符号,第二类型时域资源为non-SBFD符号,将第一目标功率等级记为preambleReceivedTargetPowerSBFD,将第二目标功率等级记为preambleReceivedTargetPower-nonSBFD,将第一类型时域资源和第二类型时域资源对应的功率爬升步长记为PREAMBLE_POWER_RAMPING_STEP,将第一类型时域资源和第二类型时域资源对应的前导码增量记为DELTA_PREAMBLE。则第一发送功率和第二发送功率的计算公式如下所示。
第一发送功率=preambleReceivedTargetPowerSBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
第二发送功率=preambleReceivedTargetPower-nonSBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
在一些实施例中,第一目标功率等级与第二目标功率等级相同或不同。
综上所述,本申请实施例提供的方法,示出了在第一类型时域资源对应第一目标功率等级,第二类型时域资源对应第二目标功率等级的情况下,随机接入信道在第一类型时域资源上传输时的第一发送功率的
计算方式以及随机接入信道在第二类型时域资源上传输时的第二发送功率的计算方式,该方式能够通过不同的相关参数确定随机接入信道在不同时域资源类型上传输时的不同发送功率。并且由于终端设备在第一类型时域资源的符号和第二类型时域资源的符号传输所受到的干扰是不同的,因此不同资源类型的符号中链路质量也是不同的,使用不同的发送功率,可以应对不同的干扰情况,使得信道到达网络设备的接收机时可以正确得到接收。
发送功率的计算方式二:
在一些实施例中,第一类型时域资源对应第一功率爬升计数器、第一随机接入前导码传输计数器、第一功率爬升步长中的至少之一;第二类型时域资源对应第二功率爬升计数器、第二随机接入前导码传输计数器、第二功率爬升步长中的至少之一。也即,终端设备针对第一类型时域资源和第二类型时域资源分别维护功率爬升计数器和随机接入前导码传输计数器中的至少之一。
在一些实施例中,在随机接入信道传输机会对应第一类型时域资源的情况下,发送随机接入信道,随机接入信道的第一发送功率是基于第一目标功率等级和第一功率爬升计数器的取值中的至少之一确定的;和/或,在随机接入信道传输机会对应第二类型时域资源的情况下,发送随机接入信道,随机接入信道的第二发送功率是基于第二目标功率等级和第二功率爬升计数器的取值中的至少之一确定的。也即,在本次传输所使用的随机接入信道传输机会对应第一类型时域资源的情况下,发送随机接入信道,随机接入信道的第一发送功率是基于第一目标功率等级和第一功率爬升计数器的取值中的至少之一确定的;和/或,在本次传输所使用的随机接入信道传输机会对应第二类型时域资源的情况下,发送随机接入信道,随机接入信道的第二发送功率是基于第二目标功率等级和第二功率爬升计数器的取值中的至少之一确定的。示例性的,随机接入信道传输机会对应第一类型时域资源,可以理解为随机接入信道传输机会所在的时域资源属于第一类型时域资源;随机接入信道传输机会对应第一类型时域资源,可以理解为随机接入信道传输机会所在的时域资源属于第二类型时域资源。比如,第一类型时域资源对应第一功率爬升计数器,第二类型时域资源对应第二功率爬升计数器,但第一类型时域资源和第二类型时域资源共用同一个目标功率等级;又比如,第一类型时域资源对应第一目标功率等级,第二类型时域资源对应第二目标功率等级,但第一类型时域资源和第二类型时域资源共用同一个功率爬升计数器。再比如,第一类型时域资源对应第一目标功率等级和第一功率爬升计数器,第二类型时域资源对应第二目标功率等级和第二功率爬升计数器。
在一些实施例中,在随机接入信道传输机会对应第一类型时域资源的情况下,发送随机接入信道,随机接入信道的第一发送功率是基于第一功率爬升计数器的取值确定的;在随机接入信道传输机会对应第二类型时域资源的情况下,发送随机接入信道,随机接入信道的第二功率爬升计数器的取值确定的。或,在随机接入信道传输机会对应第一类型时域资源的情况下,发送随机接入信道,随机接入信道的第一发送功率是基于第一目标功率等级和第一功率爬升步长确定的;在随机接入信道传输机会对应第二类型时域资源的情况下,发送随机接入信道,随机接入信道的第二发送功率是基于第二目标功率等级和第二功率爬升步长确定的。或,在随机接入信道传输机会对应第一类型时域资源的情况下,发送随机接入信道,随机接入信道的第一发送功率是基于第一目标功率等级、第一功率爬升计数器的取值和第一功率爬升步长确定的;在随机接入信道传输机会对应第二类型时域资源的情况下,发送随机接入信道,随机接入信道的第二发送功率是基于第二目标功率等级、第二功率爬升计数器的取值和第二功率爬升步长确定的。
在一些实施例中,第一发送功率是基于第一目标功率等级、第一功率爬升步长、第一功率爬升计数器的取值和前导码增量中的至少之一确定的;第二发送功率是基于第二目标功率等级、第二功率爬升步长、第二功率爬升计数器的取值和前导码增量中的至少之一确定的;其中,前导码增量是基于随机接入前导码格式、子载波间隔中的至少之一确定的。
在一些实施例中,第一发送功率为第一目标功率等级、第一功率爬升量与前导码增量的和,第一功率爬升量是根据第一功率爬升计数器的取值和第一功率爬升步长确定的;第二发送功率为第二目标功率等级、第二功率爬升量与前导码增量的和,第二功率爬升量是根据第二功率爬升计数器的取值和第二功率爬升步长确定的。
示例性的,目标功率等级包括第一目标功率等级和第二目标功率等级;功率爬升步长包括第一功率爬升步长和第二功率爬升步长;功率爬升计数器包括第一功率爬升计数器和第二功率爬升计数器。前导码增量由网络设备额外配置或由通信协议约定。第一类型时域资源SBFD符号,第二类型时域资源为non-SBFD符号,将第一目标功率等级记为preambleReceivedTargetPowerSBFD,将第二目标功率等级记为preambleReceivedTargetPower-nonSBFD,将第一功率爬升计数器记为PREAMBLE_POWER_RAMPING_COUNTER_SBFD,将第二功率爬升计数器记为PREAMBLE_POWER_RAMPING_COUNTER_nonSBFD,将第一功率爬升步长记为PREAMBLE_POWER_RAMPING_STEP_SBFD,将第二功率爬升步长记为PREAMBLE_POWER_RAMPING_STEP_nonSBFD,将第一类型时域资源和第二类型时域资源对应的前导码增量记为DELTA_PREAMBLE。则第一发送功率和第二发送功率的计算公式如下所示。
第一发送功率=preambleReceivedTargetPowerSBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER_SBFD–1)×PREAMBLE_POWER_RAMPING_STEP_SBFD。
第二发送功率=preambleReceivedTargetPower-nonSBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER_nonSBFD–1)×PREAMBLE_POWER_RAMPING_STEP_nonSBFD。
在一些实施例中,第一目标功率等级与第二目标功率等级相同或不同;第一功率传输计数器与第二功率传输计数器相同或不同。
综上所述,本申请实施例提供的方法,示出了在第一类型时域资源对应第一目标功率等级、第一功率爬升计数器、第一功率爬升步长中的至少之一,第二类型时域资源对应第二目标功率等级、第二功率爬升计数器、第二功率爬升步长中的至少之一的情况下,随机接入信道在第一类型时域资源上传输时的第一发送功率的计算方式以及随机接入信道在第二类型时域资源上传输时的第二发送功率的计算方式,该方式能够通过不同的相关参数确定随机接入信道在不同时域资源类型上传输时的不同发送功率。并且由于终端设备在第一类型时域资源的符号和第二类型时域资源的符号传输所受到的干扰是不同的,因此不同资源类型的符号中链路质量也是不同的,使用不同的发送功率,可以应对不同的干扰情况,使得信道到达网络设备的接收机时可以正确得到接收。
在一些实施例中,由于终端设备在随机接入信道的传输中使用的时域资源类型是不确定的,因此在随机接入过程中,本次传输时使用的时域资源类型与上一次传输时所使用的时域资源类型是相同或不同的。因此,接下来示出针对本次传输时使用的时域资源类型与上一次传输时所使用的时域资源类型相同或不同的情形下,功率爬升计数器的不同爬升方式。
在一些实施例中,本次传输时使用的时域资源类型与上一次传输时使用的时域资源类型不同可以表示为本次传输时使用的时域资源类型为第一类型时域资源,上一次传输时所使用的时域资源类型为第二类型时域资源;和/或,本次传输时使用的时域资源类型为第二类型时域资源,上一次传输时所使用的时域资源类型为第一类型时域资源。例如,针对第一类型时域资源为SBFD符号,第二类型时域资源为non-SBFD符号,由于SBFD链路的干扰更加严重,在第一类型时域资源与第二类型时域资源共享同一功率爬升计数器时,在从non-SBFD符号到SBFD符号的情况下,即在本次传输时使用的时域资源类型为SBFD符号,上一次传输时所使用的时域资源类型为non-SBFD符号的情况下保持功率爬升计数器不变或重置或初始化;在从SBFD符号到non-SBFD符号的情况下,即在本次传输时使用的时域资源类型为non-SBFD符号,上一次传输时所使用的时域资源类型为SBFD符号的情况下,功率爬升计数器加1。可选地,在本次传输时使用的时域资源类型与上一次传输时所使用的时域资源类型相同的情况下,功率爬升计数器加1。
在一些实施例中,本次传输时使用的时域资源类型与上一次传输时使用的时域资源类型不同可以仅包括本次传输时使用的时域资源类型为第一类型时域资源,上一次传输时所使用的时域资源类型为第二类型时域资源;在一些实施例中,本次传输时使用的时域资源类型与上一次传输时使用的时域资源类型不同可以仅包括:本次传输时使用的时域资源类型为第二类型时域资源,上一次传输时所使用的时域资源类型为第一类型时域资源。
爬升方式一:功率爬升计数器不变。
在随机接入信道的传输过程中,终端设备针对第一类型时域资源与第二类型时域资源仅使用一个功率爬升计数器。对于随机接入信道传输,若相比于上一次传输,对应的时域资源类型发生改变,保持功率爬升计数器不变;或,在随机接入信道的本次传输使用的时域资源类型相比于上一次传输所使用的时域资源类型发生改变的情况下,保持功率爬升计数器不变。需要说明的是,“在随机接入信道的本次传输使用的时域资源类型相比于上一次传输所使用的时域资源类型发生改变的情况下,保持功率爬升计数器不变”是“在随机接入信道的本次传输使用的时域资源类型相比于上一次传输所使用的时域资源类型发生改变的情况下,保持功率爬升计数器不变”的具有相同含义的不同表达方式,也即“在随机接入信道的本次传输使用的时域资源类型相比于上一次传输所使用的时域资源类型发生改变的情况下,保持功率爬升计数器不变”等同于“在随机接入信道的本次传输使用的时域资源类型相比于上一次传输所使用的时域资源类型发生改变的情况下,保持功率爬升计数器不变”。例如存在n次随机接入传输,若第i次传输所使用的随机接入信道传输机会对应的时域资源类型与第i-1次所使用的随机接入信道传输机会对应的时域资源类型不同,则第i次传输所使用的随机接入信道的功率爬升计数器相比于第i-1次传输所使用的随机接入信道的功率爬升计数器不变。
在一些实施例中,对于随机接入信道传输,若相比于初传,对应的时域资源类型发送改变,保持功率爬升计数器不变;或,在随机接入信道的本次传输使用的时域资源类型相比于初传所使用的时域资源类型发生改变的情况下,保持功率爬升计数器不变。例如存在n次随机接入传输,若第i次传输所使用的随机接入信道传输机会对应的时域资源类型与初传所使用的随机接入信道传输机会对应的时域资源类型不同,则第i次传输所使用的随机接入信道的功率爬升计数器相比于第i-1次传输所使用的随机接入信道的功率爬
升计数器不变。也即,对于随机接入信道重传,若相比于上一次传输或初传,对应的时域资源类型发送改变,保持功率爬升计数器不变。
示例性的,如图10所示,在进行初传、第一次重传以及第二次重传时,使用的时域资源类型均为第一类型时域资源,此时每经过一次重传功率爬升计数器加1。可选地,在进行初传时,对功率爬升计数器进行初始化,功率爬升计数器的初始值为1。即,在进行初传时,功率爬升计数器为1,在进行第一次重传时,由于第一次重传使用的随机接入信道传输机会12对应的时域资源类型与上一次传输即初传使用的随机接入信道传输机会11对应的时域资源类型均为第一类型时域资源,因此,功率爬升计数器加1,此时功率爬升计数器为2;在进行第二次重传时,由于第二次重传使用的随机接入信道传输机会13对应的时域资源类型与上一次传输即第一次重传使用的随机接入信道传输机会12对应的时域资源类型均为第一类型时域资源,因此,功率爬升计数器加1,此时功率爬升计数器为3。而在进行第三次重传时,由于第三次重传使用随机接入信道传输机会14对应的时域资源类型为第二类型时域资源,与上一次传输即第二次重传使用的随机接入信道传输机会13对应的时域资源类型不同,此时功率爬升计数器不变,即第三次重传时功率爬升计数器仍为3。在第四次重传时,由于第四次重传使用的随机接入信道传输机会15对应的时域资源类型与上一次传输即第三次重传使用的随机接入信道传输机会14对应的时域资源类型相同,均为第二类型时域资源,因此,功率爬升计数器加1,此时功率爬升计数器为4。
综上所述,本申请实施例提供的方法,在随机接入信道传输时使用的时域资源类型与上一次传输时所使用的时域资源类型不同时,功率爬升计数器不变,这一发送功率的计算方式兼顾了干扰水平和随机接入的时延。
爬升方式二:功率爬升计数器重置或初始化。
在随机接入信道的传输过程中,终端设备针对第一类型时域资源与第二类型时域资源仅使用一个功率爬升计数器。对于随机接入信道传输,若相比于上一次传输,对应的时域资源类型发生改变,重置或初始化功率爬升计数器;或,在随机接入信道的本次传输使用的时域资源类型相比于上一次传输所使用的时域资源类型发生改变的情况下,重置或初始化功率爬升计数器。需要说明的是,“在随机接入信道的本次传输使用的时域资源类型相比于上一次传输所使用的时域资源类型发生改变的情况下,重置或初始化功率爬升计数器”是“在随机接入信道的本次传输使用的时域资源类型相比于上一次传输所使用的时域资源类型发生改变的情况下,重置或初始化功率爬升计数器”的具有相同含义的不同表达方式,也即“在随机接入信道的本次传输使用的时域资源类型相比于上一次传输所使用的时域资源类型发生改变的情况下,重置或初始化功率爬升计数器”等同于“在随机接入信道的本次传输使用的时域资源类型相比于上一次传输所使用的时域资源类型发生改变的情况下,重置或初始化功率爬升计数器”。例如存在n次随机接入传输,若第i次传输所使用的随机接入信道传输机会对应的时域资源类型与第i-1次所使用的随机接入信道传输机会对应的时域资源类型不同,则第i次传输所使用的随机接入信道的功率爬升计数器重置或初始化。
在一些实施例中,对于随机接入信道传输,若相比于初传,对应的时域资源类型发送改变,重置或初始化功率爬升计数器;或,在随机接入信道的本次传输使用的时域资源类型相比于初传所使用的时域资源类型发生改变的情况下,重置或初始化功率爬升计数器。例如存在n次随机接入传输,若第i次传输所使用的随机接入信道传输机会对应的时域资源类型与初传所使用的随机接入信道传输机会对应的时域资源类型不同,则第i次传输所使用的随机接入信道的功率爬升计数器重置或初始化。也即,对于随机接入信道重传,若相比于上一次传输或初传,对应的时域资源类型发送改变,重置或初始化功率爬升计数器。
示例性的,如图11所示,在进行初传、第一次重传以及第二次重传时,使用的时域资源类型均为第一类型时域资源,此时每经过一次重传功率爬升计数器加1。可选地,在进行初传时,对功率爬升计数器进行初始化,功率爬升计数器的初始值为1。即,在进行初传时,功率爬升计数器为1;在进行第一次重传时,由于第一次重传使用的随机接入信道传输机会17对应的时域资源类型与上一次传输即初传使用的随机接入信道传输机会16对应的时域资源类型均为第一类型时域资源,因此,功率爬升计数器加1,此时功率爬升计数器为2;在进行第二次重传时,由于第二次重传使用的随机接入信道传输机会18对应的时域资源类型与上一次传输即第一次重传使用的随机接入信道传输机会17对应的时域资源类型均为第一类型时域资源,因此,功率爬升计数器加1,此时功率爬升计数器为3。而在进行第三次重传时,由于第三次重传使用的随机接入信道传输机会19对应的时域资源类型为第二类型时域资源,与上一次传输即第二次重传使用的随机接入信道传输机会18对应的时域资源类型不同,此时功率爬升计数器重置或初始化,例如将功率爬升计数器重置为1,即第三次重传时功率爬升计数器被重置为1。在第四次重传时,由于第四次重传使用的随机接入信道传输机会20对应的时域资源类型与上一次传输即第三次重传使用的随机接入信道传输机会19对应的时域资源类型相同,均为第二类型时域资源,因此,功率爬升计数器加1,此时功率爬升计数器为2。
综上所述,本申请实施例提供的方法,在随机接入信道传输时使用的时域资源类型与上一次传输时所
使用的时域资源类型不同时,功率爬升计数器重置或初始化,这一发送功率的计算方式能够最大程度上减少由于时域资源类型改变后执行的随机接入过程对其他链路产生的干扰,但该方法对功率爬升计数器进行重置或初始化,可能导致UE需要进行多次重传,也即功率爬升,才能够达到成功完成随机接入的发送功率,进而可能导致随机接入时延的增大。
爬升方式三:第一类型时域资源与第二类型时域资源对应的功率爬升计数器不同。
在随机接入信道的传输过程中,终端设备针对第一类型时域资源与第二类型时域资源分别使用一个功率爬升计数器,针对第一类型时域资源使用第一功率爬升计数器,针对第二类型时域资源使用第二功率爬升计数器,在进行传输时,根据传输时使用的时域资源类型,选择对应的功率爬升计数器。
在一些实施例中,终端设备针对第一类型时域资源与第二类型时域资源还分别使用一个随机接入前导码传输计数器,针对第一类型时域资源使用第一随机接入前导码传输计数器,针对第二类型时域资源使用第二随机接入前导码传输计数器,在进行传输时,根据传输时使用的时域资源类型,选择对应的功率爬升计数器。
也即,第一类型时域资源对应第一功率爬升计数器、第一随机接入前导码传输计数器中的至少之一;第二类型时域资源对应第二功率爬升计数器、第二随机接入前导码传输计数器中的至少之一。
在一些实施例中,在随机接入过程启动时,初始化第一功率爬升计数器、第一随机接入前导码传输计数器、第二功率爬升计数器、第二随机接入前导码传输计数器中的至少之一;在随机接入信道传输失败,且随机接入信道对应第一类型时域资源的情况下,第一随机接入前导码传输计数器加1;在随机接入信道传输失败,且随机接入信道对应第二类型时域资源的情况下,第二随机接入前导码传输计数器加1;在随机接入信道对应第一类型时域资源,且第一随机接入前导码传输计数器的取值大于第一初始值的情况下,第一功率爬升计数器加1;在随机接入信道对应第二类型时域资源,且第二随机接入前导码传输计数器的取值大于第二初始值的情况下,第二功率爬升计数器加1。其中,随机接入信道传输失败表示:若RAR窗口(RAR window)超时,但是没有收到包含第一随机接入前导码(Random access preamble)标识的随机接入响应或者竞争解决没有成功,则认为随机接入信道传输失败。第一随机接入前导码标识与和终端发送的随机接入信道前导码索引(PRACH preamble index)匹配。
在一些实施例中,第一功率爬升计数器和/或第二功率爬升计数器是在随机接入信道传输前更新的;第一随机接入前导码传输计数器和/或第二随机接入前导码传输计数器是在随机接入信道传输后更新的。
示例性的,如图12所示,在随机接入过程启动时,将第一功率爬升计数器、第一随机接入前导码传输计数器、第二功率爬升计数器、第二随机接入前导码传输计数器都初始化为1;在进行初传时,由于初传使用的随机接入信道传输机会21对应的时域资源类型为第一类型时域资源,但第一随机接入前导码传输计数器为1,也即第一初始值,因此,第一功率爬升计数器不变,或者说由于第一次使用第一类型时域资源第一功率爬升计数器初始化,此时第一功率爬升计数器为1,初传结束后,由于初传失败且初传使用的随机接入信道传输机会21对应的时域资源类型为第一类型时域资源,第一随机接入前导码传输计数器加1,此时第一随机接入前导码计数器为2;在进行第一次重传时,由于第一次重传使用的随机接入信道传输机会22对应的时域资源类型为第一类型时域资源,且第一随机接入前导码传输计数器大于第一初始值,第一功率爬升计数器加1,此时第一功率爬升计数器为2,第一次重传结束后,由于第一次重传失败且第一次重传使用的随机接入信道传输机会22对应的时域资源类型为第一资源类型,第一随机接入前导码传输计数器加1,此时第一随机接入前导码传输计数器为3;在进行第二次重传时,由于第二次重传使用的随机接入信道传输机会23对应的时域资源类型为第二类型时域资源,但第二随机接入前导码传输计数器为1,也即第二初始值,因此第二功率爬升计数器不变,或者说由于第一次使用第二类型时域资源第二功率爬升计数器初始化,此时第二功率爬升计数器为1,第二次重传结束后,由于第二次重传失败且第二次重传使用的随机接入信道传输机会23对应的时域资源类型为第二类型时域资源,第二随机接入前导码传输计数器加1,此时第二随机接入前导码传输计数器为2;在进行第三次重传时,由于第三次重传使用的随机接入信道传输机会24对应的时域资源类型为第二类型时域资源,且第二随机接入前导码传输计数器大于第二初始值,第二功率爬升计数器加1,此时第二功率爬升计数器为2,第二次重传结束后,由于第二次重传失败且第二次重传使用的随机接入信道传输机会24对应的时域资源类型为第二资源类型,第二随机接入前导码传输计数器加1,此时第二随机接入前导码传输计数器为3;在进行第四次重传时,由于第四次重传使用的随机接入信道传输机会25对应的时域资源类型为第一类型时域资源,且第一随机接入前导码传输计数器的取值大于第一初始值,第一功率爬升计数器加1,此时第一功率爬升计数器为3,在第四次重传结束后,由于第四次重传失败且第四次重传使用的随机接入信道传输机会25对应的时域资源类型为第一类型时域资源,第一随机接入前导码计数器加1,此时第一随机接入前导码传输计数器为4。
综上所述,本申请实施例提供的方法,针对第一类型时域资源与第二类型时域资源配置不同的功率爬升计数器,能够在一定程度上缩短随机接入的时延,但由于终端需要维护两套功率爬升计数器,容易对终
端设备造成负担,导致终端设备对应的随机接入过程的复杂度变高。
爬升方式四:不期待随机接入信道对应的时域资源类型的改变。
在一些实施例中,随机接入信道的初传和重传对应相同的时域资源类型;或,终端设备不期待随机接入信道的重传相对于初传或相对于上一次传输,改变所对应的时域资源类型;或,终端设备不期待随机接入信道的重传所对应的时域资源类型,与随机接入信道的初传或者随机接入信道的上一次传输所对应的时域资源类型不同。也即,终端设备在选择随机接入信道传输时机时,会使用与初传相同的时域资源类型的。
综上所述,本申请实施例提供的方法,在随机接入过程中,始终使用相同的时域资源类型,也能够完成存在两种时域资源类型的情况下的随机接入过程,避免切换符号类型所造成的干扰无法判断的问题,该方式由于需要等待想要的时域资源类型的随机接入资源,因此随机接入时延较高。
在一个可选的实施例中,上述发送功率的计算方式与爬升方式可以作为独立实施例或组合实施例来实施。例如,发送功率的计算方式一可以独立实施,当随机接入信道对应的时域资源类型改变时,功率爬升计数器加1;发送功率的计算方式一与爬升方式一组合实施,针对第一类型时域资源和第二类型时域资源,设置同一功率爬升计数器,在随机接入信道对应的时域资源类型改变时,功率爬升计数器不变;或,发送功率的计算方式与爬升方式二组合实施,针对第一类型时域资源和第二类型时域资源,设置同一功率爬升计数器,在随机接入信道对应的时域资源类型改变时,功率爬升计数器重置或初始化;或,发送功率的计算方式一与爬升方式四组合实施,针对第一类型时域资源和第二类型时域资源,设置同一功率爬升计数器,并且在每次传输时均使用同一时域资源类型对应的随机接入信道;或,发送功率的计算方式一与爬升方式三组合实施,针对第一类型时域资源和第二类型时域资源,分别维护一个功率爬升计数器和随机接入前导码传输计数器;或,发送功率的计算方式二与爬升方式三组合实施,针对第一类型时域资源和第二类型时域资源,分别维护一个功率爬升计数器和随机接入前导码传输计数器;或,发送功率的计算方式一与发送功率的计算方式二组合实施,第一类型时域资源对应第一目标功率等级,且对应第一类型时域资源对应第一功率爬升计数器、第一随机接入前导码传输计数器、第一功率爬升步长中的至少之一;第二类型时域资源对应第二目标功率等级,且对应第二类型时域资源对应第二功率爬升计数器、第二随机接入前导码传输计数器、第二功率爬升步长中的至少之一;或,发送功率的计算方式一可以与爬升方式四组合实施,终端设备期待每次随机接入信道传输对应的时域资源类型是相同的,每次随机接入信道传输失败后,功率爬升计数器加1,使用发送功率的计算方式一进行发送功率的计算;或,发送功率的计算方式二可以与爬升方式四组合实施。
2.2频域相关参数。
频域相关参数包括如下参数中的至少之一:第一参数和第二参数;第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数,比如一个时间单位是一个时间实例(time instance);第二参数用于指示在频域上的最低随机接入信道传输机会和参考点之间的偏移值,参考点是上行BWP的PRB0,也即上行BWP的起始PRB;第一参数可以表示为msg1-FDM,第二参数可以表示为msg1-FrequencyStart。
在一些实施例中,第一类型时域资源对应的第一参数与第二类型时域资源对应的第一参数相同或不同;和/或,第一类型时域资源对应的第二参数与第二类型时域资源对应的第二参数相同或不同。
示例性的,如图13所示,第一类型时域资源对应的第一参数可以记为msg1-FDMSBFD,第一类型时域资源对应的第二参数可以记为msg1-FrequencyStartSBFD,第二类型时域资源对应的第一参数可以记为msg1-FDMNonSBFD,第二类型时域资源对应的第二参数可以记为msg1-FrequencyStartNonSBFD。图13中基于第一配置所配置的参数:msg1-FDMSBFD=2,msg1-FrequencyStartSBFD=N1,选取得到位于上行子带内的一组随机接入信道传输机会26,该组随机接入信道传输机会26包括4个随机接入信道传输机会;还基于第二配置所配置的参数:msg1-FDMNonSBFD=4,msg1-FrequencyStartNonSBFD=N2,选取得到一组随机接入信道传输机会27,该组随机接入信道传输机会27包括8个随机接入信道传输机会。
综上所述,本申请实施例提供的方法,针对第一类型时域资源和第二类型时域资源分别进行频域配置,方式灵活,既能够保证所有的随机接入信道传输机会都是有效的,又能够保证随机接入信道传输机会在上行BWP或上行子带的两端,从而避免资源碎片化。
在一些实施例中,网络设备为终端设备针对第一类型时域资源和/或第二类型时域资源提供了差异化的配置。配置方式有两种,接下来对两种配置方式进行分别介绍。
3.1配置方式一。
在基于图5的可选实施例中,该方法还包括:
步骤210:接收第一配置和第二配置,第一配置和第二配置用于配置随机接入信道传输时的相关参数,第一配置对应第一类型时域资源,第二配置对应第二类型时域资源。
在一些实施例中,时域资源包括如下至少之一:符号、符号组、时隙、子时隙、帧、子帧。本申请实施例中对时域资源的具体类型不加以限定,通常以第一配置对应第一类型符号,第二配置对应第二类型符
号进行举例说明。例如,第一配置对应SBFD符号,第二配置对应non-SBFD符号。其中,SBFD符号为包括上行子带、下行子带、保护带中至少之一的符号,non-SBFD符号为不包括以上子带的符号。
在一些实施例中,随机接入信道的配置包括功率配置和频域配置中的至少之一,功率配置用于配置随机接入信道传输时的功率相关参数,频域配置用于配置随机接入信道传输时的频域相关参数。第一配置包括第一功率配置和第一频域配置中的至少之一;第二配置包括第二功率配置和第二频域配置中的至少之一。第一配置与第二配置所包括的配置项是相同的,即在第一配置包括第一功率配置时,第二配置也应包括第二功率配置;在第一配置包括第一频域配置时,第二配置也应包括第二频域配置;在第一配置包括第一功率配置和第一频域配置时,第二配置也应包括第二功率配置和第二频域配置。
在一些实施例中,功率配置包括如下相关参数中的至少之一:目标功率等级;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长;也即,第一配置和第二配置中的任一配置均包括如下相关参数中的至少之一:目标功率等级;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长。
在一些实施例中,功率相关参数包括如下参数中的至少之一:发送功率;目标功率等级;功率爬升计数器的取值;随机接入前导码传输计数器的取值;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长。其中,第一部分相关参数是基于网络设备额外配置或协议约定的,第二部分参数是终端设备基于第一部分参数选择或计算或确定的。示例性的,通过配置方式一进行功率相关参数的配置,第一配置和第二配置中的任一配置均包括如下参数中的至少之一:目标功率等级、随机接入前导码的最大传输次数、随机接入信道的功率爬升步长。
在一些实施例中,第一配置包括第一目标功率等级,第二配置包括第二目标功率等级。
在一些实施例中,第一配置还包括第一功率爬升步长,第二配置还包括第二功率爬升步长。其中,第一功率爬升步长与第二功率爬升步长相同或不同。
在一些实施例中,第一配置还包括第一最大次数,第一最大次数为第一类型时域资源对应的随机接入前导码的最大传输次数;第二配置还包括第二最大次数,第二最大次数为第二类型时域资源对应的随机接入前导码的最大传输次数。其中,第一最大次数与第二最大次数相同或不同。
在一些实施例中,第一配置与第二配置中仅包括取值不同的参数,其中,第一配置与第二配置中取值相同的参数可以由网络设备额外配置或由通信协议约定;例如第一配置中包括第一目标功率等级,第二配置中包括第二目标功率等级,随机接入前导码的最大传输次数以及随机接入信道的功率爬升步长由网络设备额外配置或由通信协议约定;或,第一配置中包括第一目标功率等级和第一功率爬升步长,第二配置中包括第二目标功率等级和第二功率爬升步长,随机接入前导码的最大传输次数由网络设备额外配置或由通信协议约定;或,第一配置中包括第一目标功率等级、第一最大次数,第二配置中包括第二目标功率等级和第二最大次数,随机接入信道的功率爬升步长由网络设备额外配置或由通信协议约定;或,第一配置中包括第一目标功率等级、第一最大次数和第一功率爬升步长,第二配置中包括第二目标功率等级、第二最大次数和第二功率爬升步长。
在一些实施例中,第一配置与第二配置中包括所有参数。也即,第一配置中包括第一目标功率等级、第一最大次数和第一功率爬升步长,第二配置中包括第二目标功率等级、第二最大次数和第二功率爬升步长。第一最大次数与第二最大次数相同或不同,第一功率爬升步长与第二功率爬升步长相同或不同。
在一些实施例中,频域配置包括如下相关参数中的至少之一:第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数;第二参数,第二参数用于指示在频域上的最低随机接入信道传输机会和参考点之间的偏移值,参考点是上行BWP的PRB0,也即上行BWP的起始PRB;也即,第一配置和第二配置中的任一配置均包括如下相关参数中的至少之一:第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数;第二参数,第二参数用于指示在频域上的最低随机接入信道传输机会和参考点之间的偏移值,参考点是上行BWP的PRB0。
在一些实施例中,第一配置与第二配置共享部分相关参数。示例性的,如图14所示,终端设备针对第一配置与第二配置使用一套功率爬升计数器和前导码传输计数器,此时第一配置与第二配置对应的共享的相关参数为功率爬升计数器和前导码传输计数器。第一配置包括如下至少之一:第一目标功率等级、第一最大次数、第一功率爬升步长、第一参数1、第二参数1。第二配置包括如下至少之一:第二目标功率等级、第二最大次数、第二功率爬升步长、第一参数2、第二参数2。其中,第一目标功率等级与第二目标功率等级通常是不同的。第一最大次数与第二最大次数可以相同或不同,第一功率爬升步长与第二功率爬升步长可以相同或不同,第一参数1与第一参数2可以相同或不同,第二参数1与第二参数2可以相同或不同。
在一些实施例中,第一配置与第二配置不共享相关参数。示例性的,如图15所示。终端设备针对第一配置与第二配置分别使用一套功率爬升计数器和前导码传输计数器。第一配置包括如下至少之一:第一目标功率等级、第一最大次数、第一功率爬升步长、第一功率爬升计数器、第一前导码传输计数器、第一
参数1、第二参数1。第二配置包括如下至少之一:第二目标功率等级、第二最大次数、第二功率爬升步长、第二功率爬升计数器、第二前导码传输计数器、第一参数2、第二参数2。其中,第一目标功率等级与第二目标功率等级通常是不同的。第一最大次数与第二最大次数可以相同或不同,第一功率爬升步长与第二功率爬升步长可以相同或不同,第一功率爬升计数器与第二功率爬升计数器通常是不同的,第一前导码传输计数器与第二前导码传输计数器通常是不同的,第一参数1与第一参数2可以相同或不同,第二参数1与第二参数2可以相同或不同。
在一些实施例中,接收第一配置参数以及接收第二配置参数,第一配置参数对应第一配置,第二配置参数对应第二配置;或,接收第一配置参数和偏移值,第一配置参数对应第一配置,第一配置参数基于偏移值偏移后的配置参数对应第二配置;或,接收第二配置参数和偏移值,第二配置参数对应第二配置,第二配置值参数基于偏移值便宜后的配置参数对应第一配置;或,接收第一配置参数,第一配置参数对应第一配置;或,接收第二配置参数,第二配置参数对应第二配置。示例性的,第一配置参数包括第一目标功率等级,第二配置参数包括第二目标功率等级;或,第一配置包括第一目标功率等级,偏移值包括目标功率等级偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和;或,第一配置包括第一目标功率等级和第一功率爬升步长,偏移值包括目标功率等级偏移和功率爬升步长偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和,第二配置对应的第二功率爬升步长为第一目标功率爬升步长与功率爬升步长偏移之和。
在一些实施例中,相关参数中的一部分相关参数由第一配置参数与第二配置参数进行配置;相关参数中的另一部分相关参数由第一配置参数与偏移值进行配置;或,相关参数中的第一部分参数由第一配置参数与第二配置参数进行配置,相关参数中的第二部分参数由第一配置参数与偏移值进行配置,相关参数中的第三部分参数则基于网络设备额外配置或协议约定。例如,相关参数包括目标功率等级、随机接入前导码的最大传输次数、随机接入信道的功率爬升步长;针对目标功率等级,采用第一配置参数(也即第一目标功率等级)和第二配置参数(也即第二目标功率等级)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一目标功率等级)和偏移值(也即目标功率等级偏移)进行配置;针对随机接入前导码的最大传输次数,采用第一配置参数(也即第一最大次数)和第二配置参数(也即第二最大次数)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一最大次数)和偏移值(也即最大次数偏移)进行配置;针对随机接入信道的功率爬升步长,采用第一配置参数(也即第一功率爬升步长)和第二配置参数(也即第二功率爬升步长)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一功率爬升步长)和偏移值(也即功率爬升步长偏移)进行配置。
示例性的,第一配置参数包括第一目标功率等级,第二配置参数包括第二目标功率等级;或,第一配置包括第一目标功率等级,偏移值包括目标功率等级偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和;或,第一配置包括第一目标功率等级和第一功率爬升步长,偏移值包括目标功率等级偏移和功率爬升步长偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和,第二配置对应的第二功率爬升步长为第一目标功率爬升步长与功率爬升步长偏移之和。
例如第二配置参数为第二目标功率等级,将其记为preambleReceivedTargetPower,偏移值为目标功率等级偏移,将其记为delta_SBFD,则第一配置对应的第一目标功率等级为preambleReceivedTargetPower+delta_SBFD。此时,第一发送功率与第二发送功率的计算公式如下所示。
第一发送功率=preambleReceivedTargetPower+delta_SBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
第二发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
在一个可选的实施例中,随机接入信道的功率配置还可以采用以下方式:在本次传输时使用的时域资源类型与上一次传输时所使用的时域资源类型不同时,功率爬升计数器加1;设置偏移次数,将其记为counter_SBFD,在初传使用的时域资源类型为第一类型时域资源时,将偏移次数初始化为1;在初传使用的时域资源类型为第二类型时域资源时,将偏移次数初始化为0;当重传使用的时域资源类型为第一类型时域资源时,偏移次数加1,也即counter_SBFD+1。此时,第一发送功率与第二发送功率的计算公式如下所示。
第一发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP+counter_SBFD×delta_SBFD。
第二发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
综上所述,本申请实施例提供的方法,为终端设备提供了随机接入信道的第一配置和第二配置,使终端设备能够使用该第一配置或第二配置进行随机接入,由于第一配置对应第一类型时域资源,第二配置对应第二类型时域资源;这使终端设备能够在随机接入过程中针对不同的时域资源类型选择不同的配置。
3.2配置方式二。
在基于图5的可选实施例中,该方法包括:
步骤220:接收第三配置,第三配置用于配置随机接入信道传输时的相关参数,第三配置对应第一类型时域资源和第二类型时域资源。
在一些实施例中,在配置随机接入信道的频域相关参数时,针对第一类型时域资源和第二类型时域资源,可以共同使用一套配置即第三配置。
在一些实施例中,第三配置包括第二参数;第二参数用于指示在频域维度的最低一个随机接入信道传输机会和参考点之间的偏移值。其中,对于第一类型时域资源,参考点是第一频域带宽在频域上的最低PRB,对于第二类型时域资源,参考点是上行BWP的PRB0。
在一些实施例中,第三配置还包括第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数,比如一个时间单位是一个时间实例(time instance)。
示例性的,如图16所示,第三配置包括第一参数和第二参数,第一参数可以记为msg1-FDM,第二参数可以记为msg1-FrequencyStart。图16中基于第三配置所配置的参数msg1-FDM=2,msg1-FrequencyStart=0,选取得到的第一类型时域资源的一组随机接入信道传输机会28与第二类型时域资源的一组随机接入信道传输机会29,其中,一组随机接入信道传输机会28包括4个随机接入信道传输机会,一组随机接入信道传输机会29包括4个随机接入信道传输机会。其中,将针对第一类型时域资源参考点记为参考点30,针对第二类型时域资源参考点记为参考点31,参考点30为上行子带和上行BWP的交集在频域维度上的最低PRB,参考点31为上行BWP的PRB0。
综上所述,本申请实施例提供的方法,针对第一类型时域资源与第二类型时域资源共享一套配置,能够节省信令开销。终端设备只需维护一套配置,并对第一类型时域资源和第二类型时域资源做不同的解读方式,仍能够保证所有的随机接入信道传输机会都是有效的,并且还能够保证随机接入信道传输机会在上行BWP或上行子带的两端,避免资源碎片化。
在一些实施例中,上述步骤210示出的随机接入信道的传输方法与步骤220示出的随机接入信道的传输方法可以组合实施。也即,相关参数中的一部分参数可以由配置方式一进行配置,另一部分参数由配置方式二进行配置;或,相关参数中的第一部分参数可以由配置方式一进行配置,第二部分参数可以由配置方式二进行配置,第三部分参数可以基于网络设备额外配置或协议约定。例如使用配置方式一进行功率配置,使用配置方式二进行频域配置;或,针对随机接入信道的频域配置,第一类型时域资源对应第一配置,第二类型时域资源对应第二配置,第一配置与第二配置包括第一参数,第一配置对应的第一参数的取值与第二配置对应的第一参数的取值相同或不同;第一类型时域资源与第二类型时域资源对应第三配置,第三配置包括第二参数,第三配置针对第一类型时域资源与第二类型时域资源具有不同的解读方式。即根据步骤210示出的方法确定第一类型时域资源对应的随机接入信道传输机会的个数以及第二类型时域资源对应的随机接入信道传输机会的个数,根据步骤220示出的方法确定第一类型时域资源与第二类型时域资源对应的随机接入信道传输机会的位置。其中,步骤210与步骤220可以作为独立实施例来实施,也可以作为组合实施例来实施,步骤210与步骤220作为组合实施例实施时,步骤210与步骤220可以交换顺序或同时执行。
在一些实施例中,针对终端设备对第一类型时域资源与第二类型时域资源分别使用一个随机接入前导码传输计数器的情形,设计相应的随机接入失败判断方法。
在一些实施例中,基于第一随机接入前导码传输计数器与第一阈值,或,第二随机接入前导码传输计数器与第二阈值上报随机接入问题,第一阈值与第一最大次数有关,第一最大次数为第一类型时域资源对应的随机接入前导码的最大传输次数,第二阈值与第二最大次数有关,第二最大次数为第二类型时域资源对应的随机接入前导码的最大传输次数;或,基于第一随机接入前导码传输计数器、第二随机接入前导码传输计数器和第三阈值上报随机接入问题,第三阈值与第一类型时域资源以及第二时域资源类对应的随机接入前导码的最大传输次数有关;其中,随机接入问题用于指示终端设备的随机接入过程存在异常。
失败判断方法一:第一类型时域资源与第二类型时域资源分别对应一个随机接入前导码的最大传输次数。
在第一随机接入前导码传输计数器的取值大于或等于第一阈值的情况下,上报随机接入问题;或,在第二随机接入前导码传输计数器的取值大于或等于第二阈值的情况下,上报随机接入问题。
在一些实施例中,第一阈值为第一最大次数,第二阈值为第二最大次数;或,第一阈值为第一最大次数与第一初始值之和,第二阈值为第二最大次数与第二初始值之和。
示例性的,第一类型时域资源为SBFD符号,第二类型时域资源为non-SBFD符号;将第一最大次数记为preambleTransMax_SBFD,将第二最大次数记为preambleTransMax_nonSBFD。第一类型时域资源对应第一随机接入前导码传输计数器(PREAMBLE_TRANSMISSION_COUNTER_SBFD),第二类型时域资源对应第二随机接入前导码传输计数器(PREAMBLE_TRANSMISSION_COUNTER_nonSBFD);第一阈值为第一最大次数与第一初始值之和,第二阈值为第二最大次数与第二初始值之和;第一初始值为第一随机接入前导码传输计数器的初始值,为1;第二初始值为第二随机接入前导码传输计数器的初始值,也为1。此时,若PREAMBLE_TRANSMISSION_COUNTER_SBFD=preambleTransMax_SBFD+1,或,PREAMBLE_TRANSMISSION_COUNTER_nonSBFD=preambleTransMax_nonSBFD+1,则上报随机接入问题。
综上所述,本申请实施例提供的方法,通过设置前导码传输计数器来记录终端设备尝试随机接入过程的次数,从而针对存在第一类型时域资源和第二类型时域资源的情况下,终端设备能够对是否需要继续进行随机接入过程进行判断。
失败判断方法二:第一类型时域资源与第二类型时域资源仅对应一个随机接入前导码的最大传输次数。
在传输次数大于或等于第三阈值的情况下,上报随机接入问题,传输次数为第一随机接入前导码传输计数器的取值与第二随机接入前导码传输计数器的取值之和。
在一些实施例中,第三阈值为随机接入前导码的最大传输次数;或,第三阈值为随机接入前导码的最大传输次数、第一初始值、第二初始值之和。
示例性的,第一类型时域资源为SBFD符号,第二类型时域资源为non-SBFD符号;将随机接入前导码的最大传输次数记为preambleTransMax。第一类型时域资源对应第一随机接入前导码传输计数器(PREAMBLE_TRANSMISSION_COUNTER_SBFD),第二类型时域资源对应第二随机接入前导码传输计数器(PREAMBLE_TRANSMISSION_COUNTER_nonSBFD);第三阈值为随机接入前导码的最大传输次数、第一初始值、第二初始值之和;第一初始值为第一随机接入前导码传输计数器的初始值,为1;第二初始值为第二随机接入前导码传输计数器的初始值,也为1。此时,若PREAMBLE_TRANSMISSION_COUNTER_SBFD+PREAMBLE_TRANSMISSION_COUNTER_nonSBFD=preambleTransMax+2,则上报随机接入问题。
综上所述,本申请实施例提供的方法,通过设置前导码传输计数器来记录终端设备尝试随机接入过程的次数,从而针对存在第一类型时域资源和第二类型时域资源的情况下,终端设备能够对是否需要继续进行随机接入过程进行判断。
图17示出了本申请一个示例性实施例提供的随机接入信道的传输方法的流程图。该方法由网络设备执行,该方法包括:
步骤330:接收随机接入信道,随机接入信道是终端设备根据随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数发送的。
在一些实施例中,时域资源包括如下至少之一:符号、符号组、时隙、子时隙、帧、子帧。本申请实施例中对时域资源的具体类型不加以限定。
在一些实施例中,第一类型时域资源和第二类型时域资源可以理解为两种不同的双工方式、时隙或符号等。第一类型时域资源和第二类型时域资源中可用上行资源的数量、位置、大小、频域带宽是不同的;或者说第一类型时域资源和第二类型时域资源中随机接入信道的数量、位置、大小、频域带宽是不同的。例如第一类型时域资源为SBFD符号,第二类型时域资源为non-SBFD符号。其中,SBFD符号为包括上行子带、下行子带、保护带中至少之一的符号,non-SBFD符号为不包括以上子带的符号。
在一些实施例中,相关参数包括如下至少之一:发送功率;目标功率等级;功率爬升计数器的取值;随机接入前导码传输计数器的取值;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长;第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数,比如一个时间单位是一个时间实例(time instance);第二参数,第二参数用于指示在频域上的最低随机接入信道传输机会和参考点之间的偏移值,参考点是上行BWP的PRB0。其中,发送功率用于指示终端设备会使用多少能量发送随机接入信道;目标功率等级用于指示网络设备的接收机所期望的随机接入信道的目标功率;功率爬升计数器的取值用于指示功率爬升次数,一般来说,每次随机接入失败后,功率爬升计数器的取值会加1;随机接入前导码传输计数器用于指示随机接入过程中前导码的传输次数,即随机接入信道的发送次数;随机接入前导码的最大传输次数用于指示整个随机接入过程中前导码的最大传输次数,也即随机接入信道的最大发送次数;随机接入信道的功率爬升步长用于指示每次功率爬升时的功率提升量。
示例性的,如图6所示,斜线方块10表示一个随机接入信道传输机会,第一参数为2,用于表示在一个时间单位中频分复用的随机接入信道传输机会的个数为2;若参考点为active UL BWP(激活的上行
BWP)的PRB0,也即active UL BWP的起始PRB,则图6中在频域维度上最低的随机接入信道传输机会与PRB0之间的偏移值为第二参数。
在一些实施例中,随机接入信道在传输时的相关参数包括功率相关参数和/或频域相关参数。
在一些实施例中,功率相关参数包括发送功率和功率爬升计数器。
其中,发送功率的具体计算过程即为终端设备的发送功率计算过程,在此不再赘述。
在一些实施例中,目标功率等级包括第一目标功率等级和第二目标功率等级,第一类型时域资源对应第一目标功率等级,第二类型时域资源对应第二目标功率等级;接收随机接入信道,随机接入信道传输机会对应第一类型时域资源,随机接入信道的第一发送功率是终端设备基于第一目标功率等级确定的;和/或,接收随机接入信道,随机接入信道传输机会对应第二类型时域资源,随机接入信道的第二发送功率是终端设备基于第二目标功率等级确定的。
在一些实施例中,第一发送功率是终端设备基于第一目标功率等级、功率爬升步长、功率爬升计数器和前导码增量中的至少之一确定的;第二发送功率是终端设备基于第二目标功率等级、功率爬升步长、功率爬升计数器和前导码增量中的至少之一确定的;其中,前导码增量是基于随机接入前导码格式、子载波间隔中的至少之一确定的。
在一些实施例中,第一类型时域资源对应第一功率爬升计数器、第一随机接入前导码传输计数器、第一功率爬升步长中的至少之一;第二类型时域资源对应第二功率爬升计数器、第二随机接入前导码传输计数器、第二功率爬升步长中的至少之一。
在一些实施例中,接收随机接入信道,随机接入信道传输机会对应第一类型时域资源,随机接入信道的第一发送功率是终端设备基于第一目标功率等级和第一功率爬升计数器的取值中的至少之一确定的;和/或,接收随机接入信道,随机接入信道传输机会对应第二类型时域资源,随机接入信道的第二发送功率是终端设备基于第二目标功率等级和第二功率爬升计数器的取值中的至少之一确定的。比如,第一类型时域资源对应第一功率爬升计数器,第二类型时域资源对应第二功率爬升计数器,但第一类型时域资源和第二类型时域资源共用同一个目标功率等级;又比如,第一类型时域资源对应第一目标功率等级,第二类型时域资源对应第二目标功率等级,但第一类型时域资源和第二类型时域资源共用同一个功率爬升计数器。再比如,第一类型时域资源对应第一目标功率等级和第一功率爬升计数器,第二类型时域资源对应第二目标功率等级和第二功率爬升计数器。
在一些实施例中,第一发送功率是终端设备基于第一目标功率等级、第一功率爬升步长、第一功率爬升计数器和前导码增量中的至少之一确定的;第二发送功率是终端设备基于第二目标功率等级、第二功率爬升步长、第二功率爬升计数器和前导码增量中的至少之一确定的;其中,前导码增量是基于随机接入前导码格式、子载波间隔中的至少之一确定的。
接下来示出终端设备中功率爬升计数器的不同爬升方式。
在一些实施例中,对于随机接入信道传输,若相比于上一次传输,对应的时域资源类型发生改变,终端设备保持功率爬升计数器不变。
在一些实施例中,对于随机接入信道传输,若相比于上一次传输,对应的时域资源类型发生改变,终端设备重置或初始化功率爬升计数器。
在一些实施例中,在随机接入过程启动时,终端设备初始化第一功率爬升计数器、第一随机接入前导码传输计数器、第二功率爬升计数器、第二随机接入前导码传输计数器中的至少之一;在随机接入信道传输失败,且随机接入信道对应第一类型时域资源的情况下,终端设备中的第一随机接入前导码传输计数器加1;在随机接入信道传输失败,且随机接入信道对应第二类型时域资源的情况下,终端设备中的第二随机接入前导码传输计数器加1;在随机接入信道对应第一类型时域资源,且第一随机接入前导码传输计数器的取值大于第一初始值的情况下,终端设备中的第一功率爬升计数器加1;在随机接入信道对应第二类型时域资源,且第二随机接入前导码传输计数器的取值大于第二初始值的情况下,终端设备中的第二功率爬升计数器加1。其中,随机接入信道传输失败表示:若RAR窗口(RAR window)超时,但是没有收到包含第一随机接入前导码(Random access preamble)标识的随机接入响应或者竞争解决没有成功,则认为随机接入信道传输失败。第一随机接入前导码标识与和终端发送的随机接入信道前导码索引(PRACH preamble index)匹配。
在一些实施例中,随机接入信道的初传和重传对应相同的时域资源类型;或,终端设备不期待随机接入信道的重传相对于初传或相对于上一次传输,改变所对应的时域资源类型;或,终端设备不期待随机接入信道的重传所对应的时域资源类型,与随机接入信道的初传或者随机接入信道的上一次传输所对应的时域资源类型不同。
在一些实施例中,接收终端设备上报的随机接入问题,随机接入问题是基于第一随机接入前导码传输计数器与第一阈值,或,第二随机接入前导码传输计数器与第二阈值上报的,第一阈值与第一最大次数有
关,第一最大次数为第一类型时域资源对应的随机接入前导码的最大传输次数,第二阈值与第二最大次数有关,第二最大次数为第二类型时域资源对应的随机接入前导码的最大传输次数;或,接收终端设备上报的随机接入问题,随机接入问题是基于第一随机接入前导码传输计数器、第二随机接入前导码传输计数器和第三阈值上报的,第三阈值与第一类型时域资源以及第二时域资源类对应的随机接入前导码的最大传输次数有关;其中,随机接入问题用于指示终端设备的随机接入过程存在异常。
在一些实施例中,一个随机接入信道传输机会在以下情况下是有效的:随机接入信道传输机会在上行符号内;或,随机接入信道传输机会在第一类型时域资源内,且随机接入信道传输机会位于第一频域带宽内,例如随机接入信道传输机会在第一类型时域资源内,且随机接入信道传输机会位于上行子带和上行BWP的交集内。其中,第一类型时域资源为SBFD符号;随机接入信道传输机会在上行符号内,表示的是,随机接入信道传输机会所在的符号都是上行符号;随机接入信道传输机会在第一类型时域资源内,表示的是,随机接入信道传输机会所在的符号都是SBFD符号;也就是说,如果一个随机接入信道传输机会,所在的符号包括上行符号和SBFD符号,那么这个随机接入信道传输机会是无效的。
在一些实施例中,第一频域带宽是网络设备为终端设备配置的可用上行带宽的子集;第一频域带宽是基于第一双工方式或第一类型时域资源在终端设备的上行BWP中确定的实际可用上行带宽。第一双工方式或第一类型时域资源可以是SBFD。
在一些实施例中,上行BWP是为终端设备的上行传输激活的上行BWP。第一频域带宽是上行BWP的全部带宽或一部分带宽。由于不同的双工方式或不同的时域资源类型内的可用上行子带不同,即便是针对同一终端设备,第一频域带宽也可能是动态变化的。
在一些实施例中,第一频域带宽可理解为上行BWP中的可用子带、可用上行子带、实际可用子带或实际可用上行子带。
综上所述,本申请实施例提供的方法,网络设备收随机接入信道,随机接入信道是终端设备根据随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数发送的,也即网络设备所接收的随机接入信道是终端设备根据不同的时域资源类型对应的不同相关参数确定的。
在一个可选的实施例中,第一频域带宽是上行BWP内的一部分可用子带。第一频域带宽是终端设备的实际可用上行带宽。第一频域带宽的介绍详见上述“1.第一频域带宽”,在此不再赘述。
在一些实施例中,网络设备为终端设备针对第一类型时域资源和/或第二类型时域资源提供了差异化的配置。配置方式有两种,接下来对两种配置方式进行分别介绍。
4.1配置方式一。
在基于图17的可选实施例中,该方法还包括:
步骤310:发送第一配置和第二配置,第一配置和第二配置用于配置随机接入信道传输时的相关参数,第一配置对应第一类型时域资源,第二配置对应第二类型时域资源。
在一些实施例中,时域资源包括如下至少之一:符号、符号组、时隙、子时隙、帧、子帧。本申请实施例中对时域资源的具体类型不加以限定,通常以第一配置对应第一类型符号,第二配置对应第二类型符号进行举例说明。例如,第一配置对应SBFD符号,第二配置对应non-SBFD符号。其中,SBFD符号为包括上行子带、下行子带、保护带中至少之一的符号,non-SBFD符号为不包括以上子带的符号。
在一些实施例中,随机接入信道的配置包括功率配置和频域配置中的至少之一,功率配置用于配置随机接入信道传输时的功率相关参数,频域配置用于配置随机接入信道传输时的频域相关参数。第一配置包括第一功率配置和第一频域配置中的至少之一;第二配置包括第二功率配置和第二频域配置中的至少之一。第一配置与第二配置所包括的配置项是相同的,即在第一配置包括第一功率配置时,第二配置也应包括第二功率配置;在第一配置包括第一频域配置时,第二配置也应包括第二频域配置;在第一配置包括第一功率配置和第一频域配置时,第二配置也应包括第二功率配置和第二频域配置。
在一些实施例中,功率配置包括如下相关参数中的至少之一:目标功率等级;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长;也即,第一配置和第二配置中的任一配置均包括如下相关参数中的至少之一:目标功率等级;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长。
在一些实施例中,功率相关参数包括如下参数中的至少之一:发送功率;目标功率等级;功率爬升计数器的取值;随机接入前导码传输计数器的取值;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长。
在一些实施例中,第一配置与第二配置中仅包括取值不同的参数,其中,第一配置与第二配置中取值相同的参数可以由网络设备额外配置或由通信协议约定;例如第一配置中包括第一目标功率等级,第二配置中包括第二目标功率等级,随机接入前导码的最大传输次数以及随机接入信道的功率爬升步长由网络设备额外配置或由通信协议约定;或,第一配置中包括第一目标功率等级和第一功率爬升步长,第二配置中包括第二目标功率等级和第二功率爬升步长,随机接入前导码的最大传输次数由网络设备额外配置或由通
信协议约定;或,第一配置中包括第一目标功率等级、第一最大次数,第二配置中包括第二目标功率等级和第二最大次数,随机接入信道的功率爬升步长由网络设备额外配置或由通信协议约定;或,第一配置中包括第一目标功率等级、第一最大次数和第一功率爬升步长,第二配置中包括第二目标功率等级、第二最大次数和第二功率爬升步长。
在一些实施例中,第一配置与第二配置中包括所有参数。也即,第一配置中包括第一目标功率等级、第一最大次数和第一功率爬升步长,第二配置中包括第二目标功率等级、第二最大次数和第二功率爬升步长。第一最大次数与第二最大次数相同或不同,第一功率爬升步长与第二功率爬升步长相同或不同。
在一些实施例中,频域配置包括如下相关参数中的至少之一:第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数;第二参数,第二参数用于指示在频域上的最低随机接入信道传输机会和参考点之间的偏移值,参考点是上行BWP的PRB0;也即,第一配置和第二配置中的任一配置均包括如下相关参数中的至少之一:第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数;第二参数,第二参数用于指示在频域上的最低随机接入信道传输机会和参考点之间的偏移值,参考点是上行BWP的PRB0。
在一些实施例中,第一配置与第二配置共享部分相关参数。示例性的,如图14所示,终端设备针对第一配置与第二配置使用一套功率爬升计数器和前导码传输计数器,此时第一配置与第二配置对应的共享的相关参数为功率爬升计数器和前导码传输计数器。第一配置包括如下至少之一:第一目标功率等级、第一最大次数、第一功率爬升步长、第一参数1、第二参数1。第二配置包括如下至少之一:第二目标功率等级、第二最大次数、第二功率爬升步长、第一参数2、第二参数2。其中,第一目标功率等级与第二目标功率等级通常是不同的。第一最大次数与第二最大次数可以相同或不同,第一功率爬升步长与第二功率爬升步长可以相同或不同,第一参数1与第一参数2可以相同或不同,第二参数1与第二参数2可以相同或不同。
在一些实施例中,第一配置与第二配置不共享相关参数。示例性的,如图15所示。终端设备针对第一配置与第二配置分别使用一套功率爬升计数器和前导码传输计数器。第一配置包括如下至少之一:第一目标功率等级、第一最大次数、第一功率爬升步长、第一功率爬升计数器、第一前导码传输计数器、第一参数1、第二参数1。第二配置包括如下至少之一:第二目标功率等级、第二最大次数、第二功率爬升步长、第二功率爬升计数器、第二前导码传输计数器、第一参数2、第二参数2。其中,第一目标功率等级与第二目标功率等级通常是不同的。第一最大次数与第二最大次数可以相同或不同,第一功率爬升步长与第二功率爬升步长可以相同或不同,第一功率爬升计数器与第二功率爬升计数器通常是不同的,第一前导码传输计数器与第二前导码传输计数器通常是不同的,第一参数1与第一参数2可以相同或不同,第二参数1与第二参数2可以相同或不同。
在一些实施例中,发送第一配置参数以及发送第二配置参数,第一配置参数对应第一配置,第二配置参数对应第二配置;或,发送第一配置参数和偏移值,第一配置参数对应第一配置,第一配置参数基于偏移值偏移后的配置参数对应第二配置;或,发送第二配置参数和偏移值,第二配置参数对应第二配置,第二配置值参数基于偏移值便宜后的配置参数对应第一配置;或,发送第一配置参数,第一配置参数对应第一配置;或,发送第二配置参数,第二配置参数对应第二配置。示例性的,第一配置参数包括第一目标功率等级,第二配置参数包括第二目标功率等级;或,第一配置包括第一目标功率等级,偏移值包括目标功率等级偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和;或,第一配置包括第一目标功率等级和第一功率爬升步长,偏移值包括目标功率等级偏移和功率爬升步长偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和,第二配置对应的第二功率爬升步长为第一目标功率爬升步长与功率爬升步长偏移之和。
在一些实施例中,相关参数中的一部分相关参数由第一配置参数与第二配置参数进行配置;相关参数中的另一部分相关参数由第一配置参数与偏移值进行配置;或,相关参数中的第一部分参数由第一配置参数与第二配置参数进行配置,相关参数中的第二部分参数由第一配置参数与偏移值进行配置,相关参数中的第三部分参数则基于网络设备额外配置或协议约定。例如,相关参数包括目标功率等级、随机接入前导码的最大传输次数、随机接入信道的功率爬升步长;针对目标功率等级,采用第一配置参数(也即第一目标功率等级)和第二配置参数(也即第二目标功率等级)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一目标功率等级)和偏移值(也即目标功率等级偏移)进行配置;针对随机接入前导码的最大传输次数,采用第一配置参数(也即第一最大次数)和第二配置参数(也即第二最大次数)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一最大次数)和偏移值(也即最大次数偏移)进行配置;针对随机接入信道的功率爬升步长,采用第一配置参数(也即第一功率爬升步长)和第二配置参数(也即第二功率爬升步长)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一功率爬升步长)和偏移值(也即功率爬升步长偏移)进行
配置。
示例性的,第一配置参数包括第一目标功率等级,第二配置参数包括第二目标功率等级;或,第一配置包括第一目标功率等级,偏移值包括目标功率等级偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和;或,第一配置包括第一目标功率等级和第一功率爬升步长,偏移值包括目标功率等级偏移和功率爬升步长偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和,第二配置对应的第二功率爬升步长为第一目标功率爬升步长与功率爬升步长偏移之和。
例如第二配置参数为第二目标功率等级,将其记为preambleReceivedTargetPower,偏移值为目标功率等级偏移,将其记为delta_SBFD,则第一配置对应的第一目标功率等级为preambleReceivedTargetPower+delta_SBFD。此时,第一发送功率与第二发送功率的计算公式如下所示。
第一发送功率=preambleReceivedTargetPower+delta_SBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
第二发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
在一个可选的实施例中,随机接入信道的功率配置还可以采用以下方式:在本次传输时使用的时域资源类型与上一次传输时所使用的时域资源类型不同时,功率爬升计数器加1;设置偏移次数,将其记为counter_SBFD,在初传使用的时域资源类型为第一类型时域资源时,将偏移次数初始化为1;在初传使用的时域资源类型为第二类型时域资源时,将偏移次数初始化为0;当重传使用的时域资源类型为第一类型时域资源时,偏移次数加1,也即counter_SBFD+1。此时,第一发送功率与第二发送功率的计算公式如下所示。
第一发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP+counter_SBFD×delta_SBFD。
第二发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
综上所述,本申请实施例提供的方法,网络设备通过向终端设备发送随机接入信道的第一配置和第二配置进行随机接入,由于第一配置对应第一类型时域资源,第二配置对应第二类型时域资源;这使终端设备能够在随机接入过程中针对不同的时域资源类型选择不同的配置。
4.2配置方式二。
在基于图17的可选实施例中,该方法还包括:
步骤320:发送第三配置,第三配置用于配置随机接入信道传输时的相关参数,第三配置对应第一类型时域资源和第二类型时域资源。
在一些实施例中,在配置随机接入信道的频域相关参数时,针对第一类型时域资源和第二类型时域资源,可以共同使用一套配置即第三配置。
在一些实施例中,第三配置包括第二参数;第二参数用于指示在频域维度的最低一个随机接入信道传输机会和参考点之间的偏移值。其中,对于第一类型时域资源,参考点是第一频域带宽在频域上的最低PRB,对于第二类型时域资源,参考点是上行BWP的PRB0。
在一些实施例中,第三配置还包括第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数,比如一个时间单位是一个时间实例(time instance)。
示例性的,如图16所示,第三配置包括第一参数和第二参数,第一参数可以记为msg1-FDM,第二参数可以记为msg1-FrequencyStart。图16中基于第三配置所配置的参数msg1-FDM=2,msg1-FrequencyStart=0,选取得到的第一类型时域资源的一组随机接入信道传输机会28与第二类型时域资源的一组随机接入信道传输机会29,其中,一组随机接入信道传输机会28包括4个随机接入信道传输机会,一组随机接入信道传输机会29包括4个随机接入信道传输机会。其中,将针对第一类型时域资源参考点记为参考点30,针对第二类型时域资源参考点记为参考点31,参考点30为上行子带和上行BWP的交集在频域维度上的最低PRB,参考点31为上行BWP的PRB0。
综上所述,本申请实施例提供的方法,网络设备针对第一类型时域资源与第二类型时域资源仅设置一套配置,能够节省信令开销。终端设备只需维护一套配置,并对第一类型时域资源和第二类型时域资源做不同的解读方式,仍能够保证所有的随机接入信道传输机会都是有效的,并且还能够保证随机接入信道传输机会在上行BWP或上行子带的两端,避免资源碎片化。
在一些实施例中,上述步骤310示出的随机接入信道的传输方法与步骤320示出的随机接入信道的传输方法可以组合实施。也即,相关参数中的一部分参数可以由配置方式一进行配置,另一部分参数由配置方式二进行配置;或,相关参数中的第一部分参数可以由配置方式一进行配置,第二部分参数可以由配置
方式二进行配置,第三部分参数可以基于网络设备额外配置或协议约定。例如针对随机接入信道的频域配置,第一类型时域资源对应第一配置,第二类型时域资源对应第二配置,第一配置与第二配置包括第一参数,第一配置对应的第一参数的取值与第二配置对应的第一参数的取值相同或不同;第一类型时域资源与第二类型时域资源对应第三配置,第三配置包括第二参数,第三配置针对第一类型时域资源与第二类型时域资源具有不同的解读方式。即令终端设备根据步骤310示出的方法配置第一类型时域资源对应的随机接入信道传输机会的个数以及第二类型时域资源对应的随机接入信道传输机会的个数,根据步骤320示出的方法配置第一类型时域资源与第二类型时域资源对应的随机接入信道传输机会的位置。其中,步骤310与步骤320可以作为独立实施例来实施,也可以作为组合实施例来实施,步骤310与步骤320作为组合实施例实施时,步骤310与步骤320可以交换顺序或同时执行。
图18示出了本申请一个示例性实施例提供的随机接入信道的传输方法的流程图。该方法由上述终端设备执行,该方法包括:
步骤410:接收第一配置、第二配置与第三配置中的至少之一,第一配置、第二配置和第三配置用于配置随机接入信道传输时的相关参数,第一配置对应第一类型时域资源,第二配置对应第二类型时域资源,第三配置对应第一类型时域资源与第二类型时域资源。
在一些实施例中,时域资源包括如下至少之一:符号、符号组、时隙、子时隙、帧、子帧。本申请实施例中对时域资源的具体类型不加以限定。
在一些实施例中,第一类型时域资源和第二类型时域资源可以理解为两种不同的双工方式、时隙或符号等。第一类型时域资源和第二类型时域资源中可用上行资源的数量、位置、大小、频域带宽是不同的;或者说第一类型时域资源和第二类型时域资源中随机接入信道的数量、位置、大小、频域带宽是不同的。例如第一类型时域资源为SBFD符号,第二类型时域资源为non-SBFD符号。其中,SBFD符号为包括上行子带、下行子带、保护带中至少之一的符号,non-SBFD符号为不包括以上子带的符号。
在一些实施例中,终端设备接收第一配置与第二配置;或,终端设备接收第三配置;或,终端设备接收第一配置、第二配置与第三配置。
其中,终端设备接收到的第一配置、第二配置与第三配置请参见上述“3.1配置方式一”与“3.2配置方式二”,在此不再赘述。
综上所述,本申请实施例提供的方法,终端设备在进行随机接入信道的传输前会接收第一配置、第二配置和第三配置中的至少之一,其中,第一配置、第二配置和第三配置用于配置随机接入信道传输时的相关参数,第一配置对应第一类型时域资源,第二配置对应第二类型时域资源,第三配置对应第一类型时域资源与第二类型时域资源。第一配置与第二配置对应分别配置的情况,第三配置对应共同配置的情况,无论是分别配置还是共同配置,均能够使终端设备在随机接入过程中针对不同的时域资源类型选择不同的配置。
图19示出了本申请一个示例性实施例提供的随机接入信道的传输方法的流程图。该方法有上述终端设备执行,该方法包括:
步骤510:在一个有效的随机接入信道传输机会上传输随机接入信道;
其中,一个随机接入信道传输机会在以下情况下是有效的:随机接入信道传输机会在上行符号内;或,随机接入信道传输机会在第一类型时域资源内,且随机接入信道传输机会位于第一频域带宽内。
例如随机接入信道传输机会在第一类型时域资源内,且随机接入信道传输机会位于上行子带和上行BWP的交集内。其中,第一类型时域资源为SBFD符号;随机接入信道传输机会在上行符号内,表示的是,随机接入信道传输机会所在的符号都是上行符号;随机接入信道传输机会在第一类型时域资源内,表示的是,随机接入信道传输机会所在的符号都是SBFD符号;也就是说,如果一个随机接入信道传输机会,所在的符号包括上行符号和SBFD符号,那么这个随机接入信道传输机会是无效的。
在一些实施例中,第一频域带宽是网络设备为终端设备配置的可用上行带宽的子集;第一频域带宽是基于第一双工方式或第一类型时域资源在终端设备的上行BWP中确定的实际可用上行带宽。第一双工方式或第一类型时域资源可以是SBFD。
在一些实施例中,上行BWP是为终端设备的上行传输激活的上行BWP。第一频域带宽是上行BWP的全部带宽或一部分带宽。由于不同的双工方式或不同的时域资源类型内的可用上行子带不同,即便是针对同一终端设备,第一频域带宽也可能是动态变化的。
在一些实施例中,第一频域带宽可理解为上行BWP中的可用子带、可用上行子带、实际可用子带或实际可用上行子带。
在一些实施例中,第一频域带宽是上行BWP内的一部分可用子带。第一频域带宽是终端设备的实际可用上行带宽。第一频域带宽的介绍详见上述“1.第一频域带宽”,在此不再赘述。
综上所述,本申请实施例提供的方法,示出了随机接入信道的传输条件是在有效的随机接入信道传输
机会上传输,并给出了有效的随机接入信道传输机会的传输条件,使终端设备在随机接入信道传输时能够成功传输。
图20示出了本申请一个示例性实施例提供的随机接入信道的传输装置的结构框图,该装置可以通过软件或硬件或两者的结合实现成为终端设备,或实现成为终端设备的一部分,该装置包括:
第一发送模块610,用于根据随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送随机接入信道。
在一些实施例中,时域资源包括如下至少之一:符号、符号组、时隙、子时隙、帧、子帧。本申请实施例中对时域资源的具体类型不加以限定。
在一些实施例中,第一类型时域资源和第二类型时域资源可以理解为两种不同的双工方式、时隙或符号等。第一类型时域资源和第二类型时域资源中可用上行资源的数量、位置、大小、频域带宽是不同的;或者说第一类型时域资源和第二类型时域资源中随机接入信道的数量、位置、大小、频域带宽是不同的。例如第一类型时域资源为SBFD符号,第二类型时域资源为non-SBFD符号。其中,SBFD符号为包括上行子带、下行子带、保护带中至少之一的符号,non-SBFD符号为不包括以上子带的符号。
在一些实施例中,相关参数包括如下至少之一:发送功率;目标功率等级;功率爬升计数器的取值;随机接入前导码传输计数器的取值;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长;第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数;第二参数,第二参数用于指示在频域上的最低随机接入信道传输机会和参考点之间的偏移值,参考点是上行BWP的PRB0,也即上行BWP的起始PRB。其中,发送功率用于指示终端设备会使用多少能量发送随机接入信道;目标功率等级用于指示网络设备的接收机所期望的随机接入信道的目标功率;功率爬升计数器的取值用于指示功率爬升次数,一般来说,每次随机接入失败后,功率爬升计数器的取值会加1;随机接入前导码传输计数器用于指示随机接入过程中前导码的传输次数,即随机接入信道的发送次数;随机接入前导码的最大传输次数用于指示整个随机接入过程中前导码的最大传输次数,也即随机接入信道的最大发送次数;随机接入信道的功率爬升步长用于指示每次功率爬升时的功率提升量。
示例性的,如图6所示,斜线方块10表示一个随机接入信道传输机会,第一参数为2,用于表示在一个time instance中频分复用的随机接入信道传输机会的个数为2;若参考点为active UL BWP(激活的上行BWP)的PRB0,也即active UL BWP的起始PRB,则图6中在频域维度上最低的随机接入信道传输机会与PRB0之间的偏移值为第二参数。
在一些实施例中,随机接入信道在传输时的相关参数包括功率相关参数和/或频域相关参数。
在一些实施例中,一个随机接入信道传输机会在以下情况下是有效的:随机接入信道传输机会在上行符号内;或,随机接入信道传输机会在第一类型时域资源内,且随机接入信道传输机会位于第一频域带宽内,例如随机接入信道传输机会在SBFD符号内,且随机接入信道传输机会位于上行子带和上行BWP的交集内。其中,第一类型时域资源为SBFD符号;随机接入信道传输机会在上行符号内,表示的是,随机接入信道传输机会所在的符号都是上行符号;随机接入信道传输机会在第一类型时域资源内,表示的是,随机接入信道传输机会所在的符号都是SBFD符号;也就是说,如果一个随机接入信道传输机会,所在的符号包括上行符号和SBFD符号,那么这个随机接入信道传输机会是无效的。
在一些实施例中,第一频域带宽是网络设备为终端设备配置的可用上行带宽的子集;第一频域带宽是基于第一双工方式或第一类型时域资源在终端设备的上行BWP中确定的实际可用上行带宽。第一双工方式或第一类型时域资源可以是SBFD。
在一些实施例中,上行BWP是为终端设备的上行传输激活的上行BWP。第一频域带宽是上行BWP的全部带宽或一部分带宽。由于不同的双工方式或不同的时域资源类型内的可用上行子带不同,即便是针对同一终端设备,第一频域带宽也可能是动态变化的。
在一些实施例中,第一频域带宽可理解为上行BWP中的可用子带、可用上行子带、实际可用子带或实际可用上行子带。
综上所述,本申请实施例提供的装置,终端设备根据随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送随机接入信道,也即终端设备针对不同的时域资源类型能够确定每种时域资源类型下用于传输的相关参数,并根据该相关参数发送随机接入信道。
在一个可选的实施例中,第一频域带宽是上行BWP内的一部分可用子带。第一频域带宽是终端设备的实际可用上行带宽。第一频域带宽的介绍详见上述“1.第一频域带宽”,在此不再赘述。
在一些实施例中,随机接入信道在传输时的相关参数包括功率相关参数和/或频域相关参数。针对功率相关参数和频域相关参数的具体介绍请参见上述方法侧“2.1功率相关参数”和“2.2频域相关参数”,在此不再赘述。
在一些实施例中,网络设备为终端设备针对第一类型时域资源和/或第二类型时域资源提供了差异化的
配置。配置方式有两种,接下来对两种配置方式进行分别介绍。
3.1配置方式一。
在基于图20的可选实施例中,该装置还包括:
第一接收模块,用于接收第一配置和第二配置,第一配置和第二配置用于配置随机接入信道传输时的相关参数,第一配置对应第一类型时域资源,第二配置对应第二类型时域资源。
在一些实施例中,时域资源包括如下至少之一:符号、符号组、时隙、子时隙、帧、子帧。本申请实施例中对时域资源的具体类型不加以限定,通常以第一配置对应第一类型符号,第二配置对应第二类型符号进行举例说明。例如,第一配置对应SBFD符号,第二配置对应non-SBFD符号。其中,SBFD符号为包括上行子带、下行子带、保护带中至少之一的符号,non-SBFD符号为不包括以上子带的符号。
在一些实施例中,随机接入信道的配置包括功率配置和频域配置中的至少之一,功率配置用于配置随机接入信道传输时的功率相关参数,频域配置用于配置随机接入信道传输时的频域相关参数。第一配置包括第一功率配置和第一频域配置中的至少之一;第二配置包括第二功率配置和第二频域配置中的至少之一。第一配置与第二配置所包括的配置项是相同的,即在第一配置包括第一功率配置时,第二配置也应包括第二功率配置;在第一配置包括第一频域配置时,第二配置也应包括第二频域配置;在第一配置包括第一功率配置和第一频域配置时,第二配置也应包括第二功率配置和第二频域配置。
在一些实施例中,功率配置包括如下相关参数中的至少之一:目标功率等级;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长;也即,第一配置和第二配置中的任一配置均包括如下相关参数中的至少之一:目标功率等级;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长。
在一些实施例中,功率相关参数包括如下参数中的至少之一:发送功率;目标功率等级;功率爬升计数器的取值;随机接入前导码传输计数器的取值;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长。其中,第一部分相关参数是基于网络设备额外配置或协议约定的,第二部分参数是终端设备基于第一部分参数选择或计算或确定的。示例性的,通过配置方式一进行功率相关参数的配置,第一配置和第二配置中的任一配置均包括如下参数中的至少之一:目标功率等级、随机接入前导码的最大传输次数、随机接入信道的功率爬升步长。
在一些实施例中,第一配置包括第一目标功率等级,第二配置包括第二目标功率等级。
在一些实施例中,第一配置还包括第一功率爬升步长,第二配置还包括第二功率爬升步长。其中,第一功率爬升步长与第二功率爬升步长相同或不同。
在一些实施例中,第一配置还包括第一最大次数,第一最大次数为第一类型时域资源对应的随机接入前导码的最大传输次数;第二配置还包括第二最大次数,第二最大次数为第二类型时域资源对应的随机接入前导码的最大传输次数。其中,第一最大次数与第二最大次数相同或不同。
在一些实施例中,第一配置与第二配置中仅包括取值不同的参数,其中,第一配置与第二配置中取值相同的参数可以由网络设备额外配置或由通信协议约定;例如第一配置中包括第一目标功率等级,第二配置中包括第二目标功率等级,随机接入前导码的最大传输次数以及随机接入信道的功率爬升步长由网络设备额外配置或由通信协议约定;或,第一配置中包括第一目标功率等级和第一功率爬升步长,第二配置中包括第二目标功率等级和第二功率爬升步长,随机接入前导码的最大传输次数由网络设备额外配置或由通信协议约定;或,第一配置中包括第一目标功率等级、第一最大次数,第二配置中包括第二目标功率等级和第二最大次数,随机接入信道的功率爬升步长由网络设备额外配置或由通信协议约定;或,第一配置中包括第一目标功率等级、第一最大次数和第一功率爬升步长,第二配置中包括第二目标功率等级、第二最大次数和第二功率爬升步长。
在一些实施例中,第一配置与第二配置中包括所有参数。也即,第一配置中包括第一目标功率等级、第一最大次数和第一功率爬升步长,第二配置中包括第二目标功率等级、第二最大次数和第二功率爬升步长。第一最大次数与第二最大次数相同或不同,第一功率爬升步长与第二功率爬升步长相同或不同。
在一些实施例中,频域配置包括如下相关参数中的至少之一:第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数;第二参数,第二参数用于指示在频域维度的最低一个随机接入信道传输机会和参考点之间的偏移值,参考点是上行BWP的PRB0,也即上行BWP的起始PRB;也即,第一配置和第二配置中的任一配置均包括如下相关参数中的至少之一:第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数;第二参数,第二参数用于指示在频域的最低随机接入信道传输机会和参考点之间的偏移值,参考点是上行BWP的PRB0。
在一些实施例中,第一配置与第二配置共享部分相关参数。示例性的,如图14所示,终端设备针对第一配置与第二配置使用一套功率爬升计数器和前导码传输计数器,此时第一配置与第二配置对应的共享的相关参数为功率爬升计数器和前导码传输计数器。第一配置包括如下至少之一:第一目标功率等级、第一最大次数、第一功率爬升步长、第一参数1、第二参数1。第二配置包括如下至少之一:第二目标功率
等级、第二最大次数、第二功率爬升步长、第一参数2、第二参数2。其中,第一目标功率等级与第二目标功率等级通常是不同的。第一最大次数与第二最大次数可以相同或不同,第一功率爬升步长与第二功率爬升步长可以相同或不同,第一参数1与第一参数2可以相同或不同,第二参数1与第二参数2可以相同或不同。
在一些实施例中,第一配置与第二配置不共享相关参数。示例性的,如图15所示。终端设备针对第一配置与第二配置分别使用一套功率爬升计数器和前导码传输计数器。第一配置包括如下至少之一:第一目标功率等级、第一最大次数、第一功率爬升步长、第一功率爬升计数器、第一前导码传输计数器、第一参数1、第二参数1。第二配置包括如下至少之一:第二目标功率等级、第二最大次数、第二功率爬升步长、第二功率爬升计数器、第二前导码传输计数器、第一参数2、第二参数2。其中,第一目标功率等级与第二目标功率等级通常是不同的。第一最大次数与第二最大次数可以相同或不同,第一功率爬升步长与第二功率爬升步长可以相同或不同,第一功率爬升计数器与第二功率爬升计数器通常是不同的,第一前导码传输计数器与第二前导码传输计数器通常是不同的,第一参数1与第一参数2可以相同或不同,第二参数1与第二参数2可以相同或不同。
在一些实施例中,第一接收模块,用于接收第一配置参数以及接收第二配置参数,第一配置参数对应第一配置,第二配置参数对应第二配置;或,接收第一配置参数和偏移值,第一配置参数对应第一配置,第一配置参数基于偏移值偏移后的配置参数对应第二配置;或,接收第二配置参数和偏移值,第二配置参数对应第二配置,第二配置值参数基于偏移值便宜后的配置参数对应第一配置;或,接收第一配置参数,第一配置参数对应第一配置;或,接收第二配置参数,第二配置参数对应第二配置。示例性的,第一配置参数包括第一目标功率等级,第二配置参数包括第二目标功率等级;或,第一配置包括第一目标功率等级,偏移值包括目标功率等级偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和;或,第一配置包括第一目标功率等级和第一功率爬升步长,偏移值包括目标功率等级偏移和功率爬升步长偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和,第二配置对应的第二功率爬升步长为第一目标功率爬升步长与功率爬升步长偏移之和。
在一些实施例中,相关参数中的一部分相关参数由第一配置参数与第二配置参数进行配置;相关参数中的另一部分相关参数由第一配置参数与偏移值进行配置;或,相关参数中的第一部分参数由第一配置参数与第二配置参数进行配置,相关参数中的第二部分参数由第一配置参数与偏移值进行配置,相关参数中的第三部分参数则基于网络设备额外配置或协议约定。例如,相关参数包括目标功率等级、随机接入前导码的最大传输次数、随机接入信道的功率爬升步长;针对目标功率等级,采用第一配置参数(也即第一目标功率等级)和第二配置参数(也即第二目标功率等级)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一目标功率等级)和偏移值(也即目标功率等级偏移)进行配置;针对随机接入前导码的最大传输次数,采用第一配置参数(也即第一最大次数)和第二配置参数(也即第二最大次数)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一最大次数)和偏移值(也即最大次数偏移)进行配置;针对随机接入信道的功率爬升步长,采用第一配置参数(也即第一功率爬升步长)和第二配置参数(也即第二功率爬升步长)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一功率爬升步长)和偏移值(也即功率爬升步长偏移)进行配置。
示例性的,第一配置参数包括第一目标功率等级,第二配置参数包括第二目标功率等级;或,第一配置包括第一目标功率等级,偏移值包括目标功率等级偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和;或,第一配置包括第一目标功率等级和第一功率爬升步长,偏移值包括目标功率等级偏移和功率爬升步长偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和,第二配置对应的第二功率爬升步长为第一目标功率爬升步长与功率爬升步长偏移之和。
例如第二配置参数为第二目标功率等级,将其记为preambleReceivedTargetPower,偏移值为目标功率等级偏移,将其记为delta_SBFD,则第一配置对应的第一目标功率等级为preambleReceivedTargetPower+delta_SBFD。此时,第一发送功率与第二发送功率的计算公式如下所示。
第一发送功率=preambleReceivedTargetPower+delta_SBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
第二发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
在一个可选的实施例中,随机接入信道的功率配置还可以采用以下方式:在本次传输时使用的时域资源类型与上一次传输时所使用的时域资源类型不同时,功率爬升计数器加1;设置偏移次数,将其记为counter_SBFD,在初传使用的时域资源类型为第一类型时域资源时,将偏移次数初始化为1;在初传使用
的时域资源类型为第二类型时域资源时,将偏移次数初始化为0;当重传使用的时域资源类型为第一类型时域资源时,偏移次数加1,也即counter_SBFD+1。此时,第一发送功率与第二发送功率的计算公式如下所示。
第一发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP+counter_SBFD×delta_SBFD。
第二发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
综上所述,本申请实施例提供的装置,为终端设备提供了随机接入信道的第一配置和第二配置,使终端设备能够使用该第一配置或第二配置进行随机接入,由于第一配置对应第一类型时域资源,第二配置对应第二类型时域资源;这使终端设备能够在随机接入过程中针对不同的时域资源类型选择不同的配置。
3.2配置方式二。
在基于图20的可选实施例中,第一接收模块,还用于接收第三配置,第三配置用于配置随机接入信道传输时的相关参数,第三配置对应第一类型时域资源和第二类型时域资源。
在一些实施例中,在配置随机接入信道的频域相关参数时,针对第一类型时域资源和第二类型时域资源,可以共同使用一套配置即第三配置。
在一些实施例中,第三配置包括第二参数;第二参数用于指示在频域维度的最低一个随机接入信道传输机会和参考点之间的偏移值。其中,对于第一类型时域资源,参考点是上行子带和上行BWP的交集在频域维度上的最低PRB,对于第二类型时域资源,参考点是上行BWP的PRB0。
在一些实施例中,第三配置还包括第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数,比如一个时间单位是一个时间实例(time instance)。
示例性的,如图16所示,第三配置包括第一参数和第二参数,第一参数可以记为msg1-FDM,第二参数可以记为msg1-FrequencyStart。图16中基于第三配置所配置的参数msg1-FDM=2,msg1-FrequencyStart=0,选取得到的第一类型时域资源的一组随机接入信道传输机会28与第二类型时域资源的一组随机接入信道传输机会29,其中,一组随机接入信道传输机会28包括4个随机接入信道传输机会,一组随机接入信道传输机会29包括4个随机接入信道传输机会。其中,将针对第一类型时域资源参考点记为参考点30,针对第二类型时域资源参考点记为参考点31,参考点30为上行子带和上行BWP的交集在频域维度上的最低PRB,参考点31为上行BWP的PRB0。
综上所述,本申请实施例提供的方法,针对第一类型时域资源与第二类型时域资源共享一套配置,能够节省信令开销。终端设备只需维护一套配置,并对第一类型时域资源和第二类型时域资源做不同的解读方式,仍能够保证所有的随机接入信道传输机会都是有效的,并且还能够保证随机接入信道传输机会在上行BWP或上行子带的两端,避免资源碎片化。
在一些实施例中,上述配置方式一与配置方式二中的第一接收模块可以实现为同一装置,也可以实现为不同装置。也即,相关参数中的一部分参数可以由配置方式一进行配置,另一部分参数由配置方式二进行配置;或,相关参数中的第一部分参数可以由配置方式一进行配置,第二部分参数可以由配置方式二进行配置,第三部分参数可以基于网络设备额外配置或协议约定。例如使用配置方式一进行功率配置,使用配置方式二进行频域配置;或,针对随机接入信道的频域配置,第一类型时域资源对应第一配置,第二类型时域资源对应第二配置,第一配置与第二配置包括第一参数,第一配置对应的第一参数的取值与第二配置对应的第一参数的取值相同或不同;第一类型时域资源与第二类型时域资源对应第三配置,第三配置包括第二参数,第三配置针对第一类型时域资源与第二类型时域资源具有不同的解读方式。即终端设备根据配置方式一确定第一类型时域资源对应的随机接入信道传输机会的个数以及第二类型时域资源对应的随机接入信道传输机会的个数,根据配置方式二确定第一类型时域资源与第二类型时域资源对应的随机接入信道传输机会的位置。
在一些实施例中,针对终端设备对第一类型时域资源与第二类型时域资源分别使用一个随机接入前导码传输计数器的情形,设计相应的随机接入失败判断方法。
在一个可选的实施例中,该装置还包括:问题上报模块。问题上报模块,用于基于第一随机接入前导码传输计数器与第一阈值,或,第二随机接入前导码传输计数器与第二阈值上报随机接入问题,第一阈值与第一最大次数有关,第一最大次数为第一类型时域资源对应的随机接入前导码的最大传输次数,第二阈值与第二最大次数有关,第二最大次数为第二类型时域资源对应的随机接入前导码的最大传输次数;或,基于第一随机接入前导码传输计数器、第二随机接入前导码传输计数器和第三阈值上报随机接入问题,第三阈值与第一类型时域资源以及第二时域资源类对应的随机接入前导码的最大传输次数有关;其中,随机接入问题用于指示终端设备的随机接入过程存在异常。
其中,随机接入失败判断方法的具体流程请参见上述方法侧“失败判断方法一”和“失败判断方法二”,
在此不再赘述。
图21示出了本申请一个示例性实施例提供的随机接入信道的传输装置的结构框图,该装置可以通过软件或硬件或两者的结合实现成为网络设备,或实现成为网络设备的一部分,该装置包括:
第二接收模块710,用于接收随机接入信道,随机接入信道是终端设备根据随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数发送的。
在一些实施例中,时域资源包括如下至少之一:符号、符号组、时隙、子时隙、帧、子帧。本申请实施例中对时域资源的具体类型不加以限定。
在一些实施例中,第一类型时域资源和第二类型时域资源可以理解为两种不同的双工方式、时隙或符号等。第一类型时域资源和第二类型时域资源中可用上行资源的数量、位置、大小、频域带宽是不同的;或者说第一类型时域资源和第二类型时域资源中随机接入信道的数量、位置、大小、频域带宽是不同的。例如第一类型时域资源为SBFD符号,第二类型时域资源为non-SBFD符号。其中,SBFD符号为包括上行子带、下行子带、保护带中至少之一的符号,non-SBFD符号为不包括以上子带的符号。
在一些实施例中,相关参数包括如下至少之一:发送功率;目标功率等级;功率爬升计数器的取值;随机接入前导码传输计数器的取值;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长;第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数,比如一个时间单位是一个时间实例(time instance);第二参数,第二参数用于指示在频域维度的最低一个随机接入信道传输机会和参考点之间的偏移值,参考点是上行BWP的PRB0。其中,发送功率用于指示终端设备会使用多少能量发送随机接入信道;目标功率等级用于指示网络设备的接收机所期望的随机接入信道的目标功率;功率爬升计数器的取值用于指示功率爬升次数,一般来说,每次随机接入失败后,功率爬升计数器的取值会加1;随机接入前导码传输计数器用于指示随机接入过程中前导码的传输次数,即随机接入信道的发送次数;随机接入前导码的最大传输次数用于指示整个随机接入过程中前导码的最大传输次数,也即随机接入信道的最大发送次数;随机接入信道的功率爬升步长用于指示每次功率爬升时的功率提升量。
示例性的,如图6所示,斜线方块10表示一个随机接入信道传输机会,第一参数为2,用于表示在一个时间单位中频分复用的随机接入信道传输机会的个数为2;若参考点为active UL BWP(激活的上行BWP)的PRB0,也即active UL BWP的起始PRB,则图6中在频域维度上最低的随机接入信道传输机会与PRB0之间的偏移值为第二参数。
在一些实施例中,随机接入信道在传输时的相关参数包括功率相关参数和/或频域相关参数。
在一些实施例中,功率相关参数包括发送功率和功率爬升计数器。
其中,发送功率的具体计算过程即为终端设备的发送功率计算过程,在此不再赘述。
在一些实施例中,目标功率等级包括第一目标功率等级和第二目标功率等级,第一类型时域资源对应第一目标功率等级,第二类型时域资源对应第二目标功率等级。
在一些实施例中,第二接收模块710,用于接收随机接入信道,随机接入信道传输机会对应第一类型时域资源,随机接入信道的第一发送功率是终端设备基于第一目标功率等级确定的;和/或,接收随机接入信道,随机接入信道传输机会对应第二类型时域资源,随机接入信道的第二发送功率是终端设备基于第二目标功率等级确定的。
在一些实施例中,第一发送功率是终端设备基于第一目标功率等级、功率爬升步长、功率爬升计数器和前导码增量中的至少之一确定的;第二发送功率是终端设备基于第二目标功率等级、功率爬升步长、功率爬升计数器和前导码增量中的至少之一确定的;其中,前导码增量是基于随机接入前导码格式、子载波间隔中的至少之一确定的。
在一些实施例中,第一类型时域资源对应第一功率爬升计数器、第一随机接入前导码传输计数器、第一功率爬升步长中的至少之一;第二类型时域资源对应第二功率爬升计数器、第二随机接入前导码传输计数器、第二功率爬升步长中的至少之一。
在一些实施例中,第二接收模块710,用于接收随机接入信道,随机接入信道传输机会对应第一类型时域资源,随机接入信道的第一发送功率是终端设备基于第一目标功率等级和第一功率爬升计数器中的至少之一确定的;和/或,接收随机接入信道,随机接入信道传输机会对应第二类型时域资源,随机接入信道的第二发送功率是终端设备基于第二目标功率等级和第二功率爬升计数器中的至少之一确定的。比如,第一类型时域资源对应第一功率爬升计数器,第二类型时域资源对应第二功率爬升计数器,但第一类型时域资源和第二类型时域资源共用同一个目标功率等级;又比如,第一类型时域资源对应第一目标功率等级,第二类型时域资源对应第二目标功率等级,但第一类型时域资源和第二类型时域资源共用同一个功率爬升计数器。再比如,第一类型时域资源对应第一目标功率等级和第一功率爬升计数器,第二类型时域资源对应第二目标功率等级和第二功率爬升计数器。
在一些实施例中,第一发送功率是终端设备基于第一目标功率等级、第一功率爬升步长、第一功率爬
升计数器和前导码增量中的至少之一确定的;第二发送功率是终端设备基于第二目标功率等级、第二功率爬升步长、第二功率爬升计数器和前导码增量中的至少之一确定的;其中,前导码增量是基于随机接入前导码格式、子载波间隔中的至少之一确定的。
接下来示出终端设备中功率爬升计数器的不同爬升方式。
在一些实施例中,对于随机接入信道传输,若相比于上一次传输,对应的时域资源类型发生改变,终端设备保持功率爬升计数器不变。
在一些实施例中,对于随机接入信道传输,若相比于上一次传输,对应的时域资源类型发生改变,终端设备重置或初始化功率爬升计数器。
在一些实施例中,在随机接入过程启动时,终端设备初始化第一功率爬升计数器、第一随机接入前导码传输计数器、第二功率爬升计数器、第二随机接入前导码传输计数器中的至少之一;在随机接入信道传输失败,且随机接入信道对应第一类型时域资源的情况下,终端设备中的第一随机接入前导码传输计数器加1;在随机接入信道传输失败,且随机接入信道对应第二类型时域资源的情况下,终端设备中的第二随机接入前导码传输计数器加1;在随机接入信道对应第一类型时域资源,且第一随机接入前导码传输计数器大于第一初始值的情况下,终端设备中的第一功率爬升计数器加1;在随机接入信道对应第二类型时域资源,且第二随机接入前导码传输计数器大于第二初始值的情况下,终端设备中的第二功率爬升计数器加1。其中,随机接入信道传输失败表示:若RAR窗口(RAR window)超时,但是没有收到包含第一随机接入前导码(Random access preamble)标识的随机接入响应或者竞争解决没有成功,则认为随机接入信道传输失败。第一随机接入前导码标识与和终端发送的随机接入信道前导码索引(PRACH preamble index)匹配。
在一些实施例中,随机接入信道的初传和重传对应相同的时域资源类型;或,终端设备不期待随机接入信道的重传相对于初传或相对于上一次传输,改变所对应的时域资源类型;或,终端设备不期待随机接入信道的重传所对应的时域资源类型,与随机接入信道的初传或者随机接入信道的上一次传输所对应的时域资源类型不同。
在一些实施例中,该装置还包括问题接收模块。问题接收模块,用于接收终端设备上报的随机接入问题,随机接入问题是基于第一随机接入前导码传输计数器与第一阈值,或,第二随机接入前导码传输计数器与第二阈值上报的,第一阈值与第一最大次数有关,第一最大次数为第一类型时域资源对应的随机接入前导码的最大传输次数,第二阈值与第二最大次数有关,第二最大次数为第二类型时域资源对应的随机接入前导码的最大传输次数;或,接收终端设备上报的随机接入问题,随机接入问题是基于第一随机接入前导码传输计数器、第二随机接入前导码传输计数器和第三阈值上报的,第三阈值与第一类型时域资源以及第二时域资源类对应的随机接入前导码的最大传输次数有关;其中,随机接入问题用于指示终端设备的随机接入过程存在异常。
在一些实施例中,一个随机接入信道传输机会在以下情况下是有效的:随机接入信道传输机会在上行符号内;或,随机接入信道传输机会在第一类型时域资源内,且随机接入信道传输机会位于第一频域带宽内,例如随机接入信道传输机会在SBFD符号内,且随机接入信道传输机会位于上行子带和上行BWP的交集内。其中,第一类型时域资源为SBFD符号;随机接入信道传输机会在上行符号内,表示的是,随机接入信道传输机会所在的符号都是上行符号;随机接入信道传输机会在第一类型时域资源内,表示的是,随机接入信道传输机会所在的符号都是SBFD符号;也就是说,如果一个随机接入信道传输机会,所在的符号包括上行符号和SBFD符号,那么这个随机接入信道传输机会是无效的。
在一些实施例中,第一频域带宽是网络设备为终端设备配置的可用上行带宽的子集;第一频域带宽是基于第一双工方式或第一类型时域资源在终端设备的上行BWP中确定的实际可用上行带宽。第一双工方式或第一类型时域资源可以是SBFD。
在一些实施例中,上行BWP是为终端设备的上行传输激活的上行BWP。第一频域带宽是上行BWP的全部带宽或一部分带宽。由于不同的双工方式或不同的时域资源类型内的可用上行子带不同,即便是针对同一终端设备,第一频域带宽也可能是动态变化的。
在一些实施例中,第一频域带宽可理解为上行BWP中的可用子带、可用上行子带、实际可用子带或实际可用上行子带。
综上所述,本申请实施例提供的装置,网络设备收随机接入信道,随机接入信道是终端设备根据随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数发送的,也即网络设备所接收的随机接入信道是终端设备根据不同的时域资源类型对应的不同相关参数确定的。
在一个可选的实施例中,第一频域带宽是上行BWP内的一部分可用子带。第一频域带宽是终端设备的实际可用上行带宽。第一频域带宽的介绍详见上述“1.第一频域带宽”,在此不再赘述。
在一些实施例中,网络设备为终端设备针对第一类型时域资源和/或第二类型时域资源提供了差异化的
配置。配置方式有两种,接下来对两种配置方式进行分别介绍。
4.1配置方式一。
在基于图21的可选实施例中,该装置还包括第二发送模块。
第二发送模块,用于发送第一配置和第二配置,第一配置和第二配置用于配置随机接入信道传输时的相关参数,第一配置对应第一类型时域资源,第二配置对应第二类型时域资源。
在一些实施例中,时域资源包括如下至少之一:符号、符号组、时隙、子时隙、帧、子帧。本申请实施例中对时域资源的具体类型不加以限定,通常以第一配置对应第一类型符号,第二配置对应第二类型符号进行举例说明。例如,第一配置对应SBFD符号,第二配置对应non-SBFD符号。其中,SBFD符号为包括上行子带、下行子带、保护带中至少之一的符号,non-SBFD符号为不包括以上子带的符号。
在一些实施例中,随机接入信道的配置包括功率配置和频域配置中的至少之一,功率配置用于配置随机接入信道传输时的功率相关参数,频域配置用于配置随机接入信道传输时的频域相关参数。第一配置包括第一功率配置和第一频域配置中的至少之一;第二配置包括第二功率配置和第二频域配置中的至少之一。第一配置与第二配置所包括的配置项是相同的,即在第一配置包括第一功率配置时,第二配置也应包括第二功率配置;在第一配置包括第一频域配置时,第二配置也应包括第二频域配置;在第一配置包括第一功率配置和第一频域配置时,第二配置也应包括第二功率配置和第二频域配置。
在一些实施例中,功率配置包括如下相关参数中的至少之一:目标功率等级;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长;也即,第一配置和第二配置中的任一配置均包括如下相关参数中的至少之一:目标功率等级;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长。
在一些实施例中,功率相关参数包括如下参数中的至少之一:发送功率;目标功率等级;功率爬升计数器的取值;随机接入前导码传输计数器的取值;随机接入前导码的最大传输次数;随机接入信道的功率爬升步长。
在一些实施例中,第一配置与第二配置中仅包括取值不同的参数,其中,第一配置与第二配置中取值相同的参数可以由网络设备额外配置或由通信协议约定;例如第一配置中包括第一目标功率等级,第二配置中包括第二目标功率等级,随机接入前导码的最大传输次数以及随机接入信道的功率爬升步长由网络设备额外配置或由通信协议约定;或,第一配置中包括第一目标功率等级和第一功率爬升步长,第二配置中包括第二目标功率等级和第二功率爬升步长,随机接入前导码的最大传输次数由网络设备额外配置或由通信协议约定;或,第一配置中包括第一目标功率等级、第一最大次数,第二配置中包括第二目标功率等级和第二最大次数,随机接入信道的功率爬升步长由网络设备额外配置或由通信协议约定;或,第一配置中包括第一目标功率等级、第一最大次数和第一功率爬升步长,第二配置中包括第二目标功率等级、第二最大次数和第二功率爬升步长。
在一些实施例中,第一配置与第二配置中包括所有参数。也即,第一配置中包括第一目标功率等级、第一最大次数和第一功率爬升步长,第二配置中包括第二目标功率等级、第二最大次数和第二功率爬升步长。第一最大次数与第二最大次数相同或不同,第一功率爬升步长与第二功率爬升步长相同或不同。
在一些实施例中,第一配置与第二配置共享部分相关参数。示例性的,如图14所示,终端设备针对第一配置与第二配置使用一套功率爬升计数器和前导码传输计数器,此时第一配置与第二配置对应的共享的相关参数为功率爬升计数器和前导码传输计数器。第一配置包括如下至少之一:第一目标功率等级、第一最大次数、第一功率爬升步长、第一参数1、第二参数1。第二配置包括如下至少之一:第二目标功率等级、第二最大次数、第二功率爬升步长、第一参数2、第二参数2。其中,第一目标功率等级与第二目标功率等级通常是不同的。第一最大次数与第二最大次数可以相同或不同,第一功率爬升步长与第二功率爬升步长可以相同或不同,第一参数1与第一参数2可以相同或不同,第二参数1与第二参数2可以相同或不同。
在一些实施例中,第一配置与第二配置不共享相关参数。示例性的,如图15所示。终端设备针对第一配置与第二配置分别使用一套功率爬升计数器和前导码传输计数器。第一配置包括如下至少之一:第一目标功率等级、第一最大次数、第一功率爬升步长、第一功率爬升计数器、第一前导码传输计数器、第一参数1、第二参数1。第二配置包括如下至少之一:第二目标功率等级、第二最大次数、第二功率爬升步长、第二功率爬升计数器、第二前导码传输计数器、第一参数2、第二参数2。其中,第一目标功率等级与第二目标功率等级通常是不同的。第一最大次数与第二最大次数可以相同或不同,第一功率爬升步长与第二功率爬升步长可以相同或不同,第一功率爬升计数器与第二功率爬升计数器通常是不同的,第一前导码传输计数器与第二前导码传输计数器通常是不同的,第一参数1与第一参数2可以相同或不同,第二参数1与第二参数2可以相同或不同。
在一些实施例中,频域配置包括如下相关参数中的至少之一:第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数,比如一个时间单位是一个时间实例(time instance);
第二参数,第二参数用于指示在频域维度的最低一个随机接入信道传输机会和参考点之间的偏移值;也即,第一配置和第二配置中的任一配置均包括如下相关参数中的至少之一:第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数,比如一个时间单位是一个时间实例(time instance);第二参数,第二参数用于指示在频域维度的最低一个随机接入信道传输机会和参考点之间的偏移值。
在一些实施例中,第二发送模块,用于发送第一配置参数以及发送第二配置参数,第一配置参数对应第一配置,第二配置参数对应第二配置;或,发送第一配置参数和偏移值,第一配置参数对应第一配置,第一配置参数基于偏移值偏移后的配置参数对应第二配置;或,发送第二配置参数和偏移值,第二配置参数对应第二配置,第二配置值参数基于偏移值便宜后的配置参数对应第一配置;或,发送第一配置参数,第一配置参数对应第一配置;或,发送第二配置参数,第二配置参数对应第二配置。示例性的,第一配置参数包括第一目标功率等级,第二配置参数包括第二目标功率等级;或,第一配置包括第一目标功率等级,偏移值包括目标功率等级偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和;或,第一配置包括第一目标功率等级和第一功率爬升步长,偏移值包括目标功率等级偏移和功率爬升步长偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和,第二配置对应的第二功率爬升步长为第一目标功率爬升步长与功率爬升步长偏移之和。
在一些实施例中,相关参数中的一部分相关参数由第一配置参数与第二配置参数进行配置;相关参数中的另一部分相关参数由第一配置参数与偏移值进行配置;或,相关参数中的第一部分参数由第一配置参数与第二配置参数进行配置,相关参数中的第二部分参数由第一配置参数与偏移值进行配置,相关参数中的第三部分参数则基于网络设备额外配置或协议约定。例如,相关参数包括目标功率等级、随机接入前导码的最大传输次数、随机接入信道的功率爬升步长;针对目标功率等级,采用第一配置参数(也即第一目标功率等级)和第二配置参数(也即第二目标功率等级)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一目标功率等级)和偏移值(也即目标功率等级偏移)进行配置;针对随机接入前导码的最大传输次数,采用第一配置参数(也即第一最大次数)和第二配置参数(也即第二最大次数)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一最大次数)和偏移值(也即最大次数偏移)进行配置;针对随机接入信道的功率爬升步长,采用第一配置参数(也即第一功率爬升步长)和第二配置参数(也即第二功率爬升步长)进行配置;或,基于网络设备额外配置或协议约定;或,采用第一配置参数(也即第一功率爬升步长)和偏移值(也即功率爬升步长偏移)进行配置。
示例性的,第一配置参数包括第一目标功率等级,第二配置参数包括第二目标功率等级;或,第一配置包括第一目标功率等级,偏移值包括目标功率等级偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和;或,第一配置包括第一目标功率等级和第一功率爬升步长,偏移值包括目标功率等级偏移和功率爬升步长偏移,则第二配置对应的第二目标功率等级为第一目标功率等级与目标功率等级偏移之和,第二配置对应的第二功率爬升步长为第一目标功率爬升步长与功率爬升步长偏移之和。
例如第二配置参数为第二目标功率等级,将其记为preambleReceivedTargetPower,偏移值为目标功率等级偏移,将其记为delta_SBFD,则第一配置对应的第一目标功率等级为preambleReceivedTargetPower+delta_SBFD。此时,第一发送功率与第二发送功率的计算公式如下所示。
第一发送功率=preambleReceivedTargetPower+delta_SBFD+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
第二发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
在一个可选的实施例中,随机接入信道的功率配置还可以采用以下方式:在本次传输时使用的时域资源类型与上一次传输时所使用的时域资源类型不同时,功率爬升计数器加1;设置偏移次数,将其记为counter_SBFD,在初传使用的时域资源类型为第一类型时域资源时,将偏移次数初始化为1;在初传使用的时域资源类型为第二类型时域资源时,将偏移次数初始化为0;当重传使用的时域资源类型为第一类型时域资源时,偏移次数加1,也即counter_SBFD+1。此时,第一发送功率与第二发送功率的计算公式如下所示。
第一发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP+counter_SBFD×delta_SBFD。
第二发送功率=preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP。
综上所述,本申请实施例提供的装置,网络设备通过向终端设备发送随机接入信道的第一配置和第二
配置进行随机接入,由于第一配置对应第一类型时域资源,第二配置对应第二类型时域资源;这使终端设备能够在随机接入过程中针对不同的时域资源类型选择不同的配置。
4.2配置方式二。
在基于图21的可选实施例中,第二发送模块,还用于发送第三配置,第三配置用于配置随机接入信道传输时的相关参数,第三配置对应第一类型时域资源和第二类型时域资源。
在一些实施例中,在配置随机接入信道的频域相关参数时,针对第一类型时域资源和第二类型时域资源,可以共同使用一套配置即第三配置。
在一些实施例中,第三配置包括第二参数;第二参数用于指示在频域维度的最低一个随机接入信道传输机会和参考点之间的偏移值。其中,对于第一类型时域资源,参考点是上行子带和上行BWP的交集在频域维度上的最低PRB,对于第二类型时域资源,参考点是上行BWP的PRB0。
在一些实施例中,第三配置还包括第一参数,第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数,比如一个时间单位是一个时间实例(time instance)。
示例性的,如图16所示,第三配置包括第一参数和第二参数,第一参数可以记为msg1-FDM,第二参数可以记为msg1-FrequencyStart。图16中基于第三配置所配置的参数msg1-FDM=2,msg1-FrequencyStart=0,选取得到的第一类型时域资源的一组随机接入信道传输机会28与第二类型时域资源的一组随机接入信道传输机会29,其中,一组随机接入信道传输机会28包括4个随机接入信道传输机会,一组随机接入信道传输机会29包括4个随机接入信道传输机会。其中,将针对第一类型时域资源参考点记为参考点30,针对第二类型时域资源参考点记为参考点31,参考点30为上行子带和上行BWP的交集在频域维度上的最低PRB,参考点31为上行BWP的PRB0。
综上所述,本申请实施例提供的装置,网络设备针对第一类型时域资源与第二类型时域资源仅设置一套配置,能够节省信令开销。终端设备只需维护一套配置,并对第一类型时域资源和第二类型时域资源做不同的解读方式,仍能够保证所有的随机接入信道传输机会都是有效的,并且还能够保证随机接入信道传输机会在上行BWP或上行子带的两端,避免资源碎片化。
在一些实施例中,上述配置方式一与配置方式二中的第二发送模块可以实现为同一装置,也可以实现为不同装置。也即,相关参数中的一部分参数可以由配置方式一进行配置,另一部分参数由配置方式二进行配置;或,相关参数中的第一部分参数可以由配置方式一进行配置,第二部分参数可以由配置方式二进行配置,第三部分参数可以基于网络设备额外配置或协议约定。例如针对随机接入信道的频域配置,第一类型时域资源对应第一配置,第二类型时域资源对应第二配置,第一配置与第二配置包括第一参数,第一配置对应的第一参数的取值与第二配置对应的第一参数的取值相同或不同;第一类型时域资源与第二类型时域资源对应第三配置,第三配置包括第二参数,第三配置针对第一类型时域资源与第二类型时域资源具有不同的解读方式。即令终端设备根据配置方式一中的第二发送模块的指示,配置第一类型时域资源对应的随机接入信道传输机会的个数以及第二类型时域资源对应的随机接入信道传输机会的个数,根据配置方式一中的第二发送模块的指示,配置第一类型时域资源与第二类型时域资源对应的随机接入信道传输机会的位置。
图22示出了本申请一个示例性实施例提供的随机接入信道的传输装置的结构框图,该装置可以通过软件或硬件或两者的结合实现成为终端设备,或实现成为终端设备的一部分,该装置包括:
第三接收模块810,用于接收第一配置、第二配置与第三配置中的至少之一,第一配置、第二配置和第三配置用于配置随机接入信道传输时的相关参数,第一配置对应第一类型时域资源,第二配置对应第二类型时域资源,第三配置对应第一类型时域资源与第二类型时域资源。
在一些实施例中,时域资源包括如下至少之一:符号、符号组、时隙、子时隙、帧、子帧。本申请实施例中对时域资源的具体类型不加以限定。
在一些实施例中,第一类型时域资源和第二类型时域资源可以理解为两种不同的双工方式、时隙或符号等。第一类型时域资源和第二类型时域资源中可用上行资源的数量、位置、大小、频域带宽是不同的;或者说第一类型时域资源和第二类型时域资源中随机接入信道的数量、位置、大小、频域带宽是不同的。例如第一类型时域资源为SBFD符号,第二类型时域资源为non-SBFD符号。其中,SBFD符号为包括上行子带、下行子带、保护带中至少之一的符号,non-SBFD符号为不包括以上子带的符号。
在一些实施例中,终端设备接收第一配置与第二配置;或,终端设备接收第三配置;或,终端设备接收第一配置、第二配置与第三配置。
其中,终端设备接收到的第一配置、第二配置与第三配置请参见上述“3.1配置方式一”与“3.2配置方式二”,在此不再赘述。
综上所述,本申请实施例提供的装置,终端设备在进行随机接入信道的传输前会接收第一配置、第二配置和第三配置中的至少之一,其中,第一配置、第二配置和第三配置用于配置随机接入信道传输时的相
关参数,第一配置对应第一类型时域资源,第二配置对应第二类型时域资源,第三配置对应第一类型时域资源与第二类型时域资源。第一配置与第二配置对应分别配置的情况,第三配置对应共同配置的情况,无论是分别配置还是共同配置,均能够使终端设备在随机接入过程中针对不同的时域资源类型选择不同的配置。
图23示出了本申请一个示例性实施例提供的随机接入信道的传输装置的结构框图,该装置可以通过软件或硬件或两者的结合实现成为终端设备,或实现成为终端设备的一部分,该装置包括:
传输模块910,用于在一个有效的随机接入信道传输机会上传输随机接入信道;
其中,一个随机接入信道传输机会在以下情况下是有效的:随机接入信道传输机会在上行符号内;或,随机接入信道传输机会在第一类型时域资源内,且随机接入信道传输机会位于第一频域带宽内。
例如随机接入信道传输机会在第一类型时域资源内,且随机接入信道传输机会位于上行子带和上行BWP的交集内。其中,第一类型时域资源为SBFD符号;随机接入信道传输机会在上行符号内,表示的是,随机接入信道传输机会所在的符号都是上行符号;随机接入信道传输机会在第一类型时域资源内,表示的是,随机接入信道传输机会所在的符号都是SBFD符号;也就是说,如果一个随机接入信道传输机会,所在的符号包括上行符号和SBFD符号,那么这个随机接入信道传输机会是无效的。
在一些实施例中,第一频域带宽是网络设备为终端设备配置的可用上行带宽的子集;第一频域带宽是基于第一双工方式或第一类型时域资源在终端设备的上行BWP中确定的实际可用上行带宽。第一双工方式或第一类型时域资源可以是SBFD。
在一些实施例中,上行BWP是为终端设备的上行传输激活的上行BWP。第一频域带宽是上行BWP的全部带宽或一部分带宽。由于不同的双工方式或不同的时域资源类型内的可用上行子带不同,即便是针对同一终端设备,第一频域带宽也可能是动态变化的。
在一些实施例中,第一频域带宽可理解为上行BWP中的可用子带、可用上行子带、实际可用子带或实际可用上行子带。
在一些实施例中,第一频域带宽是上行BWP内的一部分可用子带。第一频域带宽是终端设备的实际可用上行带宽。第一频域带宽的介绍详见上述“1.第一频域带宽”,在此不再赘述。
综上所述,本申请实施例提供的装置,示出了随机接入信道的传输条件是在有效的随机接入信道传输机会上传输,并给出了有效的随机接入信道传输机会的传输条件,使终端设备在随机接入信道传输时能够成功传输。
需要说明的是:上述实施例提供的装置,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将设备的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。
关于本实施例中的装置,其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述,此处将不做详细阐述说明。
图24示出了本申请一个示例性实施例提供的终端设备的结构示意图。该终端设备1000可用于执行上述实施例中由终端设备执行的方法步骤。该终端设备1000可以包括:处理器1001、收发器1002以及存储器1003。其中,处理器1001可用于控制发送和/或接收。收发器1002可以用于实现发送和/接收的功能,如用于实现上述第一发送模块610、第一接收模块、问题上报模块、第三接收模块810和传输模块910中至少之一的功能。
处理器1001包括一个或者一个以上处理核心,处理器1001通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。
收发器1002可以包括接收器和发射器,比如,该接收器和发射器可以实现为同一个无线通信组件,该无线通信组件可以包括一块无线通信芯片以及射频天线。
存储器1003可以与处理器1001以及收发器1002相连。
存储器1003可用于存储处理器执行的计算机程序,处理器1001用于执行该计算机程序,以实现上述方法实施例中的各个步骤。
此外,存储器1003可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:磁盘或光盘,电可擦除可编程只读存储器,可擦除可编程只读存储器,静态随时存取存储器,只读存储器,磁存储器,快闪存储器,可编程只读存储器。
在一些实施例中,处理器1001用于根据随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送随机接入信道。
在一些实施例中,处理器1001用于接收第一配置、第二配置与第三配置中的至少之一,第一配置、第二配置和第三配置用于配置随机接入信道传输时的相关参数,第一配置对应第一类型时域资源,第二配置对应第二类型时域资源,第三配置对应第一类型时域资源与第二类型时域资源。
在一些实施例中,处理器1001用于在一个有效的随机接入信道传输机会上传输随机接入信道。
对于本实施例中未详细说明的细节,可参见上文实施例,此处不再一一赘述。
图25示出了本申请一个示例性实施例提供的网络设备的结构示意图。该网络设备1100可用于执行上述实施例中由网络设备执行的方法步骤。该网络设备1100可以包括:处理器1101、收发器1102以及存储器1103。其中,处理器1101可用于控制发送和/或接收。收发器1102可以用于实现发送和/接收的功能,如用于实现上述第二接收模块710、问题接收模块和第二发送模块中至少之一的功能。
处理器1101包括一个或者一个以上处理核心,处理器1101通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。
收发器1102可以包括接收器和发射器。比如,该收发器1102可以包括一个有线通信组件,该有线通信组件可以包括一块有线通信芯片以及有线接口(比如光纤接口)。可选地,该收发器1102还可以包括一个无线通信组件,该无线通信组件可以包括一块无线通信芯片以及射频天线。
存储器1103可以与处理器1101以及收发器1102相连。
存储器1103可用于存储处理器执行的计算机程序,处理器1101用于执行该计算机程序,以实现上述方法实施例中的网络设备执行的各个步骤。
此外,存储器1103可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:磁盘或光盘,电可擦除可编程只读存储器,可擦除可编程只读存储器,静态随时存取存储器,只读存储器,磁存储器,快闪存储器,可编程只读存储器。
在一些实施例中,处理器1101用于接收随机接入信道,随机接入信道是终端设备根据随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数发送的。
对于本实施例中未详细说明的细节,可参见上文实施例,此处不再一一赘述。
本申请实施例还提供了一种计算机可读存储介质,存储介质中存储有计算机程序,计算机程序用于被处理器执行,以实现上述随机接入信道的传输方法。在一些实施例中,该计算机可读存储介质可以包括:ROM(Read-Only Memory,只读存储器)、RAM(Random-Access Memory,随机存储器)、SSD(Solid State Drives,固态硬盘)或光盘等。其中,随机存取记忆体可以包括ReRAM(Resistance Random Access Memory,电阻式随机存取记忆体)和DRAM(Dynamic Random Access Memory,动态随机存取存储器)。
本申请实施例还提供了一种芯片,芯片包括可编程逻辑电路和/或程序指令,当芯片运行时,用于实现上述随机接入信道的传输方法。
本申请实施例还提供了一种计算机程序产品,计算机程序产品包括计算机程序,计算机程序存储在计算机可读存储介质中,处理器从计算机可读存储介质读取并执行计算机程序,以实现上述随机接入信道的传输方法。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
在本文中提及的“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
在本文中提及的“大于或等于”可表示大于等于或大于,“小于或等于”可表示小于等于或小于。
另外,本文中描述的步骤编号,仅示例性示出了步骤间的一种可能的执行先后顺序,在一些其它实施例中,上述步骤也可以不按照编号顺序来执行,如两个不同编号的步骤同时执行,或者两个不同编号的步骤按照与图示相反的顺序执行,本申请实施例对此不作限定。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上仅为本申请的示例性实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。
Claims (42)
- 一种随机接入信道的传输方法,其特征在于,所述方法包括:根据所述随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送所述随机接入信道。
- 根据权利要求1所述的方法,其特征在于,所述相关参数包括如下至少之一:发送功率;目标功率等级;功率爬升计数器的取值;随机接入前导码传输计数器的取值;随机接入前导码的最大传输次数;所述随机接入信道的功率爬升步长;第一参数,所述第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数;第二参数,所述第二参数用于指示在频域上的最低随机接入信道传输机会和参考点之间的偏移值。
- 根据权利要求2所述的方法,其特征在于,所述目标功率等级包括第一目标功率等级和第二目标功率等级,所述第一类型时域资源对应所述第一目标功率等级,所述第二类型时域资源对应所述第二目标功率等级;所述根据所述随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送所述随机接入信道,包括:在随机接入信道传输机会对应所述第一类型时域资源的情况下,发送所述随机接入信道,所述随机接入信道的第一发送功率是基于所述第一目标功率等级确定的;和/或,在所述随机接入信道传输机会对应所述第二类型时域资源的情况下,发送所述随机接入信道,所述随机接入信道的第二发送功率是基于所述第二目标功率等级确定的。
- 根据权利要求3所述的方法,其特征在于,所述第一发送功率是基于所述第一目标功率等级、所述功率爬升步长、所述功率爬升计数器的取值和前导码增量中的至少之一确定的;所述第二发送功率是基于所述第二目标功率等级、所述功率爬升步长、所述功率爬升计数器的取值和所述前导码增量中的至少之一确定的;其中,所述前导码增量是基于随机接入前导码格式、子载波间隔中的至少之一确定的。
- 根据权利要求2或3所述的方法,其特征在于,所述第一类型时域资源对应第一功率爬升计数器、第一随机接入前导码传输计数器、第一功率爬升步长中的至少之一;所述第二类型时域资源对应第二功率爬升计数器、第二随机接入前导码传输计数器、第二功率爬升步长中的至少之一。
- 根据权利要求5所述的方法,其特征在于,所述根据所述随机接入信道在第一类型时域资源和/或第二类型时域资源中传输时的相关参数,发送所述随机接入信道,包括:在随机接入信道传输机会对应所述第一类型时域资源的情况下,发送所述随机接入信道,所述随机接入信道的第一发送功率是基于所述第一目标功率等级和所述第一功率爬升计数器的取值中的至少之一确定的;和/或,在所述随机接入信道传输机会对应所述第二类型时域资源的情况下,发送所述随机接入信道,所述随机接入信道的第二发送功率是基于所述第二目标功率等级和所述第二功率爬升计数器的取值中的至少之一确定的。
- 根据权利要求6所述的方法,其特征在于,所述第一发送功率是基于所述第一目标功率等级、所述第一功率爬升步长、所述第一功率爬升计数器的取值和前导码增量中的至少之一确定的;所述第二发送功率是基于所述第二目标功率等级、所述第二功率爬升步长、所述第二功率爬升计数器的取值和所述前导码增量中的至少之一确定的;其中,所述前导码增量是基于随机接入前导码格式、子载波间隔中的至少之一确定的。
- 根据权利要求2至4任一项所述的方法,其特征在于,所述相关参数是基于如下步骤确定的:对于随机接入信道传输,若相比于上一次传输,对应的时域资源类型发生改变,保持所述功率爬升计数器不变;或,在所述随机接入信道的本次传输使用的时域资源类型相比于所述上一次传输所使用的时域资源类型发生改变的情况下,保持所述功率爬升计数器不变。
- 根据权利要求2至4任一项所述的方法,其特征在于,所述相关参数是基于如下步骤确定的:对于随机接入信道传输,若相比于上一次传输,对应的时域资源类型发生改变,重置或初始化所述功率爬升计数器;或,在所述随机接入信道的本次传输使用的时域资源类型相比于所述上一次传输所使用的时域资源类型发生改变的情况下,重置或初始化所述功率爬升计数器。
- 根据权利要求2或5或6或7所述的方法,其特征在于,所述相关参数是基于如下步骤中的至少之一确定的:在随机接入过程启动时,初始化所述第一功率爬升计数器、所述第一随机接入前导码传输计数器、所述第二功率爬升计数器、所述第二随机接入前导码传输计数器中的至少之一;在所述随机接入信道传输失败,且所述随机接入信道对应所述第一类型时域资源的情况下,所述第一 随机接入前导码传输计数器加1;在所述随机接入信道传输失败,且所述随机接入信道对应所述第二类型时域资源的情况下,所述第二随机接入前导码传输计数器加1;在所述随机接入信道对应所述第一类型时域资源,且所述第一随机接入前导码传输计数器的取值大于第一初始值的情况下,所述第一功率爬升计数器加1;在所述随机接入信道对应所述第二类型时域资源,且所述第二随机接入前导码传输计数器的取值大于第二初始值的情况下,所述第二功率爬升计数器加1。
- 根据权利要求2至4任一项所述的方法,其特征在于,所述相关参数是基于如下步骤确定的:所述随机接入信道的初传和重传对应相同的时域资源类型;或,所述终端设备不期待所述随机接入信道的重传相对于初传或相对于上一次传输,改变所对应的时域资源类型;或,所述终端设备不期待所述随机接入信道的重传所对应的时域资源类型,与所述随机接入信道的初传或者所述随机接入信道的上一次传输所对应的时域资源类型不同。
- 根据权利要求1至11任一所述的方法,其特征在于,所述方法还包括:接收第一配置和/或第二配置,所述第一配置和所述第二配置用于配置所述随机接入信道传输时的相关参数,所述第一配置对应所述第一类型时域资源,所述第二配置对应所述第二类型时域资源。
- 根据权利要求12所述的方法,其特征在于,所述第一配置和所述第二配置中的任一配置均包括如下相关参数中的至少之一:目标功率等级;随机接入前导码的最大传输次数;所述随机接入信道的功率爬升步长。
- 根据权利要求12或13所述的方法,其特征在于,所述第一配置和所述第二配置中的任一配置均包括如下相关参数中的至少之一:第一参数,所述第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数;第二参数,所述第二参数用于指示在频域的最低随机接入信道传输机会和参考点之间的偏移值,所述参考点是上行部分带宽BWP的起始物理资源块PRB0。
- 根据权利要求12至14任一所述的方法,其特征在于,所述接收第一配置和第二配置,包括:接收第一配置参数以及接收第二配置参数,所述第一配置参数对应所述第一配置,所述第二配置参数对应所述第二配置;或,接收所述第一配置参数和偏移值,所述第一配置参数对应所述第一配置,所述第一配置参数基于所述偏移值偏移后的配置参数对应所述第二配置;或,接收所述第一配置参数,所述第一配置参数对应所述第一配置;或,接收所述第二配置参数,所述第二配置参数对应所述第二配置。
- 根据权利要求1至15任一所述的方法,其特征在于,所述方法还包括:接收第三配置,所述第三配置用于配置所述随机接入信道传输时的相关参数,所述第三配置对应所述第一类型时域资源和所述第二类型时域资源。
- 根据权利要求16所述的方法,其特征在于,所述第三配置包括第二参数,所述第二参数用于指示在频域上的最低随机接入信道传输机会和参考点之间的偏移值;其中,对于所述第一类型时域资源,所述参考点是所述第一频域带宽在频域上的最低物理资源块PRB;对于所述第二类型时域资源,所述参考点是上行BWP的PRB0。
- 根据权利要求5或6或7或10所述的方法,其特征在于,所述方法还包括:基于所述第一随机接入前导码传输计数器与第一阈值,或,所述第二随机接入前导码传输计数器与第二阈值上报随机接入问题,所述第一阈值与第一最大次数有关,所述第一最大次数为所述第一类型时域资源对应的随机接入前导码的最大传输次数,所述第二阈值与第二最大次数有关,所述第二最大次数为所述第二类型时域资源对应的随机接入前导码的最大传输次数;或,基于所述第一随机接入前导码传输计数器、所述第二随机接入前导码传输计数器和第三阈值上报所述随机接入问题,所述第三阈值与所述第一类型时域资源以及所述第二时域资源类对应的随机接入前导码的最大传输次数有关;其中,所述随机接入问题用于指示所述终端设备的随机接入过程存在异常。
- 根据权利要求1至18任一所述的方法,其特征在于,一个随机接入信道传输机会在以下情况下是有效的:所述随机接入信道传输机会在上行符号内;或,所述随机接入信道传输机会在第一类型时域资源内,且所述随机接入信道传输机会位于第一频域带宽内。
- 根据权利要求17或19所述的方法,其特征在于,所述第一频域带宽包括如下至少之一:上行子带;所述上行子带和所述上行BWP的交集;真实上行子带,所述真实上行子带是所述上行子带和所述上行BWP的交集;真实上行BWP,所述真实上行BWP是所述上行子带和所述上行BWP的交集;所述上行BWP内的上行子带部分;所述上行BWP内的可用上行子带部分;所述第一类型时域资源内所述上行BWP中的上行子带部分;所述第一类型时域资源内所述上行BWP中的可用上行子带部分。
- 一种随机接入信道的传输方法,其特征在于,所述方法包括:接收所述随机接入信道,所述随机接入信道是根据所述随机接入信道在第一类型时域资源和/或第二类 型时域资源中传输时的相关参数发送的。
- 根据权利要求21所述的方法,其特征在于,所述相关参数包括如下至少之一:发送功率;目标功率等级;功率爬升计数器的取值;随机接入前导码传输计数器的取值;随机接入前导码的最大传输次数;所述随机接入信道的功率爬升步长;第一参数,所述第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数;第二参数,所述第二参数用于指示在频域的最低随机接入信道传输机会和参考点之间的偏移值。
- 根据权利要求21或22所述的方法,其特征在于,所述方法还包括:发送所述随机接入信道的第一配置和/或第二配置,所述第一配置和所述第二配置用于配置所述随机接入信道传输时的相关参数,所述第一配置对应所述第一类型时域资源,所述第二配置对应所述第二类型时域资源。
- 根据权利要求23所述的方法,其特征在于,所述第一配置和所述第二配置中的任一配置均包括如下相关参数中的至少之一:目标功率等级;随机接入前导码的最大传输次数;所述随机接入信道的功率爬升步长。
- 根据权利要求23或24所述的方法,其特征在于,所述第一配置和所述第二配置中的任一配置均包括如下相关参数中的至少之一:第一参数,所述第一参数用于指示在一个时间单位中频分复用的随机接入信道传输机会的个数;第二参数,所述第二参数用于指示在频域的最低随机接入信道传输机会和参考点之间的偏移值,所述参考点是上行部分带宽BWP的起始物理资源块PRB0。
- 根据权利要求23至25任一所述的方法,其特征在于,所述接收第一配置和第二配置,包括:发送第一配置参数以及发送第二配置参数,所述第一配置参数对应所述第一配置,所述第二配置参数对应所述第二配置;或,发送所述第一配置参数和偏移值,所述第一配置参数对应所述第一配置,所述第一配置参数基于所述偏移值偏移后的配置参数对应所述第二配置;或,发送所述第一配置参数,所述第一配置参数对应所述第一配置;或,发送所述第二配置参数,所述第二配置参数对应所述第二配置。
- 根据权利要求21至26任一所述的方法,其特征在于,所述方法还包括:发送所述随机接入信道的第三配置,所述第三配置用于配置所述随机接入信道传输时的相关参数,所述第三配置对应所述第一类型时域资源和所述第二类型时域资源。
- 根据权利要求27所述的方法,其特征在于,所述第三配置包括第二参数,所述第二参数用于指示在频域的最低随机接入信道传输机会和参考点之间的偏移值;其中,对于所述第一类型时域资源,所述参考点是第一频域带宽在频域上的最低物理资源块PRB,对于所述第二类型时域资源,所述参考点是上行BWP的PRB0。
- 根据权利要求21至28任一所述的方法,其特征在于,所述方法还包括:接收所述终端设备上报的随机接入问题,所述随机接入问题是基于所述第一随机接入前导码传输计数器与第一阈值,或,所述第二随机接入前导码传输计数器与第二阈值上报的,所述第一阈值与第一最大次数有关,所述第一最大次数为所述第一类型时域资源对应的随机接入前导码的最大传输次数,所述第二阈值与第二最大次数有关,所述第二最大次数为所述第二类型时域资源对应的随机接入前导码的最大传输次数;或,接收所述终端设备上报的随机接入问题,所述随机接入问题是基于所述第一随机接入前导码传输计数器、所述第二随机接入前导码传输计数器和第三阈值上报的,所述第三阈值与所述第一类型时域资源以及所述第二时域资源类对应的随机接入前导码的最大传输次数有关;其中,所述随机接入问题用于指示所述终端设备的随机接入过程存在异常。
- 根据权利要求21至29任一所述的方法,其特征在于,一个随机接入信道传输机会在以下情况下是有效的:所述随机接入信道传输机会在上行符号内;或,所述随机接入信道传输机会在第一类型时域资源内,且所述随机接入信道传输机会位于第一频域带宽内。
- 根据权利要求28或30所述的方法,其特征在于,所述第一频域带宽包括如下至少之一:上行子带;所述上行子带和所述上行BWP的交集;真实上行子带,所述真实上行子带是所述上行子带和所述上行BWP的交集;真实上行BWP,所述真实上行BWP是所述上行子带和所述上行BWP的交集;所述上行BWP内的上行子带部分;所述上行BWP内的可用上行子带部分;所述第一类型时域资源内所述上行BWP中的上行子带部分;所述第一类型时域资源内所述上行BWP中的可用上行子带部分。
- 一种随机接入信道的传输方法,其特征在于,所述方法由终端设备执行,所述方法包括:接收第一配置、第二配置与第三配置中的至少之一,所述第一配置、所述第二配置和所述第三配置用于配置所述随机接入信道传输时的相关参数,所述第一配置对应所述第一类型时域资源,所述第二配置对应所述第二类型时域资源,所述第三配置对应所述第一类型时域资源与所述第二类型时域资源。
- 一种随机接入信道的传输方法,其特征在于,所述方法由终端设备执行,所述方法包括:在一个有效的随机接入信道传输机会上传输随机接入信道;其中,一个随机接入信道传输机会在以下 情况下是有效的:所述随机接入信道传输机会在上行符号内;或,所述随机接入信道传输机会在第一类型时域资源内,且所述随机接入信道传输机会位于第一频域带宽内。
- 一种随机接入信道的传输装置,其特征在于,所述装置包括:第一发送模块,用于根据所述随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数,发送所述随机接入信道。
- 一种随机接入信道的传输装置,其特征在于,所述装置包括:第二接收模块,用于接收所述随机接入信道,所述随机接入信道是终端设备根据所述随机接入信道在第一类型时域资源中传输时的相关参数和/或第二类型时域资源中传输时的相关参数发送的。
- 一种随机接入信道的传输装置,其特征在于,所述装置包括:第三接收模块,用于接收第一配置、第二配置与第三配置中的至少之一,所述第一配置、所述第二配置和所述第三配置用于配置所述随机接入信道传输时的相关参数,所述第一配置对应所述第一类型时域资源,所述第二配置对应所述第二类型时域资源,所述第三配置对应所述第一类型时域资源与所述第二类型时域资源。
- 一种随机接入信道的传输装置,其特征在于,所述装置包括:传输模块,用于在一个有效的随机接入信道传输机会上传输随机接入信道;其中,一个随机接入信道传输机会在以下情况下是有效的:所述随机接入信道传输机会在上行符号内;或,所述随机接入信道传输机会在第一类型时域资源内,且所述随机接入信道传输机会位于第一频域带宽内。
- 一种终端设备,其特征在于,所述终端设备包括:处理器;与所述处理器相连的收发器;用于存储所述处理器的可执行指令的存储器;其中,所述处理器被配置为加载并执行所述可执行指令以实现如权利要求1至21任一所述的随机接入信道的传输方法,或,权利要求32所述的随机接入信道的传输方法,或,权利要求33所述的随机接入信道的传输方法。
- 一种网络设备,其特征在于,所述网络设备包括:处理器;与所述处理器相连的收发器;用于存储所述处理器的可执行指令的存储器;其中,所述处理器被配置为加载并执行所述可执行指令以实现如权利要求21至31任一所述的随机接入信道的传输方法。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质中存储有至少一段程序,所述至少一段程序由处理器加载并执行以实现如权利要求1至33任一所述的随机接入信道的传输方法。
- 一种芯片,其特征在于,所述芯片包括可编程逻辑电路和/或程序指令,当所述芯片在终端设备或网络设备上运行时,用于实现上述权利要求1至33任一所述的随机接入信道的传输方法。
- 一种计算机程序产品,其特征在于,所述计算机程序产品包括计算机指令,所述计算机指令存储在计算机可读存储介质中,处理器从所述计算机可读存储介质中获取所述计算机指令,所述处理器执行所述计算机指令以实现如权利要求1至33任一所述的随机接入信道的传输方法。
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