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WO2020198962A1 - Procédé de communication sans fil, dispositif terminal et dispositif de réseau - Google Patents

Procédé de communication sans fil, dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2020198962A1
WO2020198962A1 PCT/CN2019/080499 CN2019080499W WO2020198962A1 WO 2020198962 A1 WO2020198962 A1 WO 2020198962A1 CN 2019080499 W CN2019080499 W CN 2019080499W WO 2020198962 A1 WO2020198962 A1 WO 2020198962A1
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WIPO (PCT)
Prior art keywords
time
prach resource
prach
symbols
channel access
Prior art date
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PCT/CN2019/080499
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English (en)
Chinese (zh)
Inventor
吴作敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to PCT/CN2019/080499 priority Critical patent/WO2020198962A1/fr
Priority to CN201980088277.5A priority patent/CN113273302B/zh
Publication of WO2020198962A1 publication Critical patent/WO2020198962A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Definitions

  • the embodiments of the present application relate to the field of communication, and more specifically, to wireless communication methods, terminal devices, and network devices.
  • the communication device When communicating on an unlicensed spectrum channel, the communication device needs to follow the "Listen Before Talk (LBT)" principle, that is, the communication device needs to perform channel listening before sending signals on the unlicensed spectrum channel , The communication device can transmit signals only when the channel detection result is that the channel is idle; if the channel detection result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot perform signal transmission.
  • LBT Listen Before Talk
  • PRACH Physical Random Access Channel
  • the embodiments of the present application provide a wireless communication method, terminal equipment, and network equipment.
  • the network equipment can configure the start symbol of PRACH resources and/or the start time of PRACH resources on unlicensed carriers, so that the terminal equipment can be based on PRACH
  • the start symbol of the resource and/or the start moment of the PRACH resource determines the PRACH resource on the unlicensed carrier.
  • a wireless communication method which includes:
  • the terminal device receives first indication information, the first indication information is used to determine the time domain location information of the first PRACH resource on the unlicensed carrier, and the time domain location information includes the start symbol of the first PRACH resource and/or the The start time of the first PRACH resource;
  • the terminal device determines the first PRACH resource on the unlicensed carrier according to the first indication information.
  • the terminal device determines the first PRACH resource on the unlicensed carrier according to the start symbol of the first PRACH resource and/or the start time of the first PRACH resource.
  • a wireless communication method in a second aspect, includes:
  • the network device receives first indication information, where the first indication information is used by the terminal device to determine the time domain location information of the first PRACH resource on the unlicensed carrier, and the time domain location information includes the start symbol of the first PRACH resource and/ Or the start time of the first PRACH resource.
  • the terminal device may determine the time domain location information of the first PRACH resource according to the first indication information. Further, the terminal device determines the first PRACH resource on the unlicensed carrier according to the start symbol of the first PRACH resource and/or the start time of the first PRACH resource.
  • a terminal device which is used to execute the method in the foregoing first aspect or each of its implementation manners.
  • the terminal device includes a functional module for executing the method in the foregoing first aspect or each implementation manner thereof.
  • a network device configured to execute the method in the second aspect or its implementation manners.
  • the network device includes a functional module for executing the method in the foregoing second aspect or each implementation manner thereof.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each of its implementation modes.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned second aspect or each of its implementation modes.
  • a device for implementing any one of the first aspect to the second aspect or the method in each implementation manner thereof.
  • the device includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first aspect to the second aspect or any of its implementation modes method.
  • the device may be a chip, such as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-chip.
  • a computer-readable storage medium for storing a computer program that enables a computer to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.
  • a computer program product which includes computer program instructions that cause a computer to execute any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • a computer program which when running on a computer, causes the computer to execute any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • the network device can configure the start symbol of the PRACH resource and/or the start time of the PRACH resource on the unlicensed carrier, so that the terminal device can be based on the start symbol of the PRACH resource and/or the start of the PRACH resource Determine the PRACH resource on the unlicensed carrier at all times.
  • Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Fig. 2 is a schematic diagram of an LBT provided by an embodiment of the present application.
  • Fig. 3 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • Fig. 4 is a schematic diagram of a first PRACH resource provided according to an embodiment of the present application.
  • Fig. 5 is a schematic diagram of another first PRACH resource provided according to an embodiment of the present application.
  • Fig. 6 is a schematic diagram of still another first PRACH resource provided according to an embodiment of the present application.
  • Fig. 7 is a schematic diagram of still another first PRACH resource provided according to an embodiment of the present application.
  • Fig. 8 is a schematic diagram of a first PRACH resource configuration and a second PRACH resource configuration provided according to an embodiment of the present application.
  • Fig. 9 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • Fig. 10 is a schematic block diagram of a network device according to an embodiment of the present application.
  • Fig. 11 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • Fig. 12 is a schematic block diagram of an apparatus according to an embodiment of the present application.
  • Fig. 13 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • 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
  • New Air Interface New Radio, NR
  • evolution system of NR system LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum, on unlicensed spectrum, NR-U) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next-generation communication systems or other communication systems, etc.
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the communication system in the embodiments of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) deployment.
  • CA Carrier Aggregation
  • DC dual connectivity
  • SA standalone
  • the embodiment of this application does not limit the applied spectrum.
  • the embodiments of the present application can be applied to licensed spectrum, or unlicensed spectrum, or unlicensed spectrum.
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 1.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • Figure 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 and a terminal device 120 with communication functions, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the application.
  • terminal equipment may also be called User Equipment (UE), access terminal, subscriber unit, user station, mobile station, mobile station, and remote Station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • UE User Equipment
  • access terminal subscriber unit
  • subscriber unit user station
  • mobile station mobile station
  • mobile station mobile station
  • remote Station remote terminal
  • mobile device user terminal
  • terminal wireless communication device
  • user agent or user device etc.
  • the terminal equipment can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, and a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems, such as terminal devices in the NR network or Terminal equipment in the future evolved Public Land Mobile Network (PLMN) network.
  • STAION, ST station
  • WLAN Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • a network device can be a device used to communicate with a mobile device.
  • the network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, or a device in WCDMA
  • AP access point
  • BTS base station
  • NodeB, NB can also be an Evolutional Node B (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in the NR network Or network equipment in the future evolution of the PLMN network.
  • eNB Evolutional Node B
  • gNB network device
  • the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a network equipment (for example, The cell corresponding to the base station.
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: Metro cell, Micro cell, Pico Cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • Unlicensed spectrum is the spectrum that can be used for radio equipment communication divided by the country and region. This spectrum is usually considered to be a shared spectrum, that is, the communication equipment in different communication systems can meet the regulatory requirements set by the country or region on the spectrum. To use this spectrum, there is no need to apply for a proprietary spectrum authorization from the government.
  • communication devices need to follow the "LBT" principle, that is, communication devices need to perform channel detection before sending signals on unlicensed spectrum channels. Listen, the communication device can send signals only when the channel detection result is that the channel is idle; if the channel detection result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot send signals.
  • LBT Low Band Occupancy Time
  • the communication equipment can have the following four channel access types (Category, Cat) when performing LBT, and the bandwidth of LBT can be 20MHz, or an integer multiple of 20MHz:
  • Cat-1 LBT Transmit immediately after the switching gap (switching gap) ends
  • Cat-2 LBT Single-slot detection, also called LBT without random back-off;
  • Cat-3 LBT LBT with random fallback based on a fixed contention window size (Contention Window Size, CWS);
  • Cat-4 LBT LBT with random fallback based on variable CWS.
  • Cat-1 LBT The applicable conditions of Cat-1 LBT include at least one of the following:
  • COT Channel Occupancy Time
  • the switching gap from receiving to sending does not exceed 16 ⁇ s.
  • the applicable conditions of Cat-2 LBT include signal transmission when the channel is idle within a single detection time, and signal transmission cannot be performed when the channel is occupied.
  • the detection time length of a single time slot under different handover gaps may be different.
  • the detection time length of a single time slot may be greater than 16 us and less than or equal to 25 us.
  • the applicable conditions of Cat-3 LBT include at least one of the following:
  • the communication device determines that CWS is CWp, where CWp is a fixed value
  • the communication device generates a random number N according to the value of CWp;
  • the communication device performs channel detection on the unlicensed spectrum, and can perform signal transmission after successful channel detection in N time slots.
  • the applicable conditions of Cat-4 LBT include at least one of the following:
  • the communication device determines that CWS is CWp, where CWp is a variable value
  • the communication device generates a random number N according to the value of CWp;
  • the communication device performs channel detection on the unlicensed spectrum, and can perform signal transmission after successful channel detection in N time slots.
  • Cat-3 LBT and Cat-4 LBT are only whether the CWS is a fixed value or a variable value.
  • Cat-3 LBT and Cat-4 LBT further distinguish the priority of channel access schemes according to the priority of the transmission service.
  • the commonly used channel access types are Cat-1 LBT, Cat-2 LBT and Cat-4 LBT.
  • the channel access types used in different transmission scenarios are different, and the channel access types used for different signals or channels are also different.
  • the target signal can be a discovery reference signal (Discovery Reference Signal, DRS), other system information (Other System Information, OSI), paging message (paging), random access response (Random Access Response, RAR), at least one of physical downlink control channel (Physical Downlink Control Channel, PDCCH), and physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).
  • DRS Discovery Reference Signal
  • OSI System Information
  • paging message paging
  • RAR random access response
  • PDCCH Physical Downlink Control Channel
  • PDCCH Physical Downlink Shared Channel
  • PDSCH Physical Downlink Shared Channel
  • Table 1 below specifies the channel access types in different situations:
  • Table 1 Channel access types of base stations
  • the channel access priority is determined according to the lowest priority data among the multiple priorities.
  • the resources in the COT can be used for the terminal equipment to perform uplink (Uplink, UL) transmission.
  • Uplink Uplink
  • UL uplink
  • the terminal device can immediately perform this Uplink transmission; if there is no downlink transmission opportunity after the uplink transmission opportunity in the COT of the base station, the terminal device can perform Cat-2 LBT before transmission; if it is in the COT of the base station, between any two adjacent transmissions If the gap (Gap) is less than or equal to 25 ⁇ s, the terminal device can perform Cat-2 LBT.
  • the target signal may be a physical uplink shared channel (PUSCH), sounding reference signal (Sounding Reference Signal, SRS), random access channel (Random Access Channel, RACH), A type of Physical Uplink Control Channel (PUCCH).
  • PUSCH physical uplink shared channel
  • SRS Sounding Reference Signal
  • RACH random access channel
  • PUCCH Physical Uplink Control Channel
  • Table 2 below specifies the channel access types in different situations:
  • Table 2 Channel access scheme of terminal equipment
  • HARQ-ACK Hybrid Automatic Repeat request Acknowledgement
  • HARQ-ACK HARQ-ACK
  • SR Scheduling Request
  • CSI channel state information (Channel State Information, CSI).
  • PRACH sequence format (Format) A1 occupies 2 symbols
  • Format A2 occupies 4 symbols
  • Format A3 occupies 6 symbols
  • Format B1 occupies 2 symbols
  • Format B2 occupies 4 symbols
  • Format B3 occupies 6 symbols
  • Format B4 occupies 12 symbols
  • Format C0 occupies 2 symbols
  • Format C2 occupies 6 symbols.
  • the time domain resources occupied by the PRACH format on the unlicensed frequency band can be the same as the time domain resources occupied by the PRACH format on the licensed frequency band.
  • the time domain resources occupied by the PRACH format on the unlicensed frequency band can also be occupied by the PRACH format on the licensed frequency band.
  • the time domain resources are different, which is not limited in this application.
  • the terminal device can determine the PRACH transmission parameters according to the PRACH configuration index notified by the network device. Specifically, the terminal device can determine the PRACH format, PRACH repetition period, PRACH time domain resources and other information according to the PRACH configuration index, where,
  • the PRACH time domain resource information includes the radio frame in which the PRACH resource is located, the subframe (FR1)/slot (FR2), the number of PRACH slots included in a subframe/slot (where, for FR1, in a subframe, It can include up to 2 PRACH time slots; for FR2, a subcarrier spacing (Subcarrier spacing, SCS) is a 60kHz time slot that can include up to 2 PRACH time slots), and the number of PRACH time domain opportunities included in a PRACH time slot (Wherein, the product of the number of PRACH time domain opportunities included in a PRACH slot and the PRACH length in this format is not greater than 14, that is, it is located in a slot), the starting symbol of the PRACH, etc.
  • FR1/slot
  • the PRACH resources on the unlicensed frequency band can be the same as the licensed frequency band in the frequency domain, or different from the licensed frequency band (for example, PRACH resources on the unlicensed frequency band occupy comb resources in the frequency domain, and PRACH resources on the licensed frequency band Occupy continuous resources in the frequency domain), which is not limited in this application.
  • FIG. 3 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG. 3, the method 200 may include some or all of the following contents:
  • the network device sends first indication information to the terminal device, where the first indication information is used by the terminal device to determine the time domain location information of the first PRACH resource on the unlicensed carrier, where the time domain location information includes the first PRACH resource The start symbol of and/or the start time of the first PRACH resource;
  • S220 The terminal device receives the first indication information.
  • the terminal device determines the first PRACH resource on the unlicensed carrier according to the first indication information.
  • the first PRACH resource may be a PRACH resource, or a type of PRACH resource (for example, multiple PRACH resources that meet certain conditions), that is, the network device may indicate a PRACH through the first indication information Resource or indicates a type of PRACH resource.
  • the network device may directly indicate the time domain location information of the first PRACH resource on the unlicensed carrier through the first indication information.
  • the network device may also indirectly indicate the time domain location information of the first PRACH resource on the unlicensed carrier through the first indication information.
  • the first indication information includes a first index, and the first index is used to indicate the first configuration Information, the first configuration information includes time domain location information of the first PRACH resource on the unlicensed carrier.
  • the network device may send the first indication information through a licensed carrier, or may send the first indication information through an unlicensed carrier.
  • the first indication information may be physical layer signaling, or higher layer signaling such as radio resource control (Radio Resource Control, RRC) signaling or Media Access Control Control Element (MAC) CE), it can also be a combination of physical layer signaling and higher layer signaling.
  • RRC Radio Resource Control
  • MAC Media Access Control Control Element
  • the first PRACH resource is a resource corresponding to the first PRACH format.
  • the first PRACH format may be any PRACH format that meets the conditions.
  • the number of symbols occupied by the first PRACH format in the time domain includes one of 2 symbols, 4 symbols, 6 symbols, and 12 symbols.
  • the start symbol of the first PRACH resource includes the start symbol of at least one PRACH resource in the PRACH time unit.
  • the PRACH time unit may include at least one PRACH resource.
  • the PRACH time unit includes but is not limited to at least one of the following:
  • the PRACH time unit includes the first half of a time slot
  • the PRACH time unit includes a PRACH resource, that is, the first PRACH resource.
  • the PRACH time unit includes the second half of a time slot
  • the PRACH time unit includes a PRACH resource, that is, the first PRACH resource.
  • time-domain position pattern of PRACH resources is preset according to time slots or subframes, and only the location information of PRACH time slots or PRACH subframes need to be indicated, and the terminal equipment can determine each PRACH time slot or each PRACH subframe PRACH resources on the Internet.
  • the PRACH time unit can be located at the beginning or end of an uplink transmission opportunity.
  • PRACH resources are configured on the first part of the time slot or the end part of the time slot of the transmission opportunity.
  • the PRACH resource when the PRACH resource is located in the initial part of the time slot of an uplink transmission opportunity (for example, the second half of a time slot), the PRACH resource occupies the last symbol and/or the last symbol in the part of the time slot. Two symbols.
  • the PRACH resource when the PRACH resource is located in a partial time slot at the end of an uplink transmission opportunity (for example, the first half of a time slot in a time slot), the PRACH resource occupies the first symbol and/or the second symbol in the partial time slot symbol.
  • the time domain location information further includes the location information of the PRACH time unit and/or the quantity information of the PRACH resources included in the PRACH time unit. That is, the first indication information may also be used to determine the location information of the PRACH time unit and/or the quantity information of PRACH resources included in the PRACH time unit.
  • the terminal device determines the PRACH time unit according to the location information of the PRACH time unit and/or the quantity information of PRACH resources included in the PRACH time unit.
  • the channel access type corresponding to the first PRACH resource in the PRACH time unit is indicated by the network device.
  • the network device dynamically indicates the channel access type corresponding to the first PRACH resource in the PRACH time unit.
  • the network device configures the channel access type corresponding to the first PRACH resource in the PRACH time unit.
  • the channel access type corresponding to the first PRACH resource in the PRACH time unit may also be pre-configured or agreed upon in a protocol.
  • the corresponding channel access scheme may be one of Cat-1, Cat-2, and Cat-4.
  • the terminal device may directly transmit on the first PRACH resource without channel access.
  • the network device may indicate that the first PRACH resource corresponds to Cat-1 LBT.
  • the network device may indicate the end position or gap size or gap size range of the downlink transmission, and the terminal device determines that the first PRACH resource corresponds to Cat-1 LBT according to the indication information.
  • the network device may send the indication information through a physical downlink control channel (Physical Downlink Control Channel, PDCCH).
  • a physical downlink control channel Physical Downlink Control Channel, PDCCH.
  • the PRACH transmission probability on the first PRACH resource can be improved.
  • the starting moments of PRACH resources on different subbands may be the same.
  • the starting moments of PRACH resources on different subbands may be different.
  • PRACH resources on different subbands correspond to different SCS or different numbers of symbols or independently perform LBT.
  • the start symbol of the first PRACH resource is determined according to at least one of the following information:
  • the channel access type corresponding to the first PRACH resource may be one of Cat-1, Cat-2, and Cat-4.
  • Cat-1 LBT transmission is performed immediately after the switching gap ends, and the applicable conditions of Cat-1 LBT include at least one of the following: applicable to one COT, and the transmission switching gap does not exceed 16 ⁇ s.
  • single-slot channel access also known as LBT without random backoff
  • the applicable conditions of Cat-2 LBT include signal transmission when the channel is idle within a single channel access time, and the channel is occupied The signal cannot be sent.
  • the detection time length of a single time slot under different handover gaps may be different.
  • the detection time length of a single time slot may be greater than 16 us and less than or equal to 25 us.
  • the applicable conditions of Cat-4 LBT include at least one of the following:
  • the communication device determines that CWS is CWp, where CWp is a variable value
  • the communication device generates a random number N according to the value of CWp;
  • the communication device performs channel access on the unlicensed spectrum, and can perform signal transmission after successful channel access for all N time slots.
  • Cat-4 LBT further distinguishes the priority of channel access types according to the priority of the transmission service.
  • the channel access types corresponding to the first PRACH resource are Type 1 (Cat-1), Type 2 (Cat-2), and Type 4 (Cat-4).
  • the channel access type corresponding to the first PRACH resource is type 2 (Cat-2) and type 4 (Cat-4).
  • Cat-2 type 2
  • Cat-4 type 4
  • the time for channel access is less than or equal to the first period L1;
  • the time for channel access is greater than the first period L1 and less than or equal to the second period L2;
  • the time for channel access is longer than the first period L1.
  • time used for channel access may also be referred to as an LBT gap (gap) or an LBT gap.
  • the first period L1 is 16 us
  • the second period L2 is 25 us.
  • the SCS corresponding to the first PRACH resource is 15 kHz or 30 kHz
  • the time for channel access may include one symbol
  • the number of symbols occupied by the first PRACH resource in the time domain includes 3 symbols and 5 symbols.
  • Symbol, one of 7 symbols, and 13 symbols, or the interval between two adjacent first PRACH resources includes 3 symbols, 5 symbols, 7 symbols, and 13 symbols in the time domain kind of.
  • the SCS corresponding to the first PRACH resource is 60 kHz, and the time for channel access includes one symbol (for example, corresponding to Cat-1 LBT), the number of symbols occupied by the first PRACH resource in the time domain The number includes one of 3 symbols, 5 symbols, 7 symbols, and 13 symbols, or the interval between two adjacent first PRACH resources includes 3 symbols, 5 symbols, One of 7 symbols and 13 symbols.
  • the symbols occupied by the first PRACH resource in the time domain The number includes 4 symbols, 6 symbols, 8 symbols, and 14 symbols, or the interval between two adjacent first PRACH resources includes 4 symbols and 6 symbols in the time domain. , 8 symbols, one of 14 symbols.
  • the number of symbols occupied by the new PRACH resource in the first PRACH format refers to the number of symbols occupied by the new PRACH resource in the first PRACH format. That is, the number of symbols occupied by the first PRACH resource in the time domain includes the LBT gap of one symbol, taking into account the influence of the LBT gap of one symbol, for example, the original LBT gap of 2 symbols is added, and the LBT gap of one symbol is newly added. It becomes accounted for 3 symbols.
  • the start moment of the first PRACH resource includes the start moment of at least one PRACH resource. It may also be that the start moment of the first PRACH resource includes the start moment of PRACH sequence transmission on at least one PRACH resource.
  • the terminal device may determine the at least one PRACH resource according to the start moment of the at least one PRACH resource.
  • the start time of the first PRACH resource is determined according to at least one of the following information:
  • start moment of the first PRACH resource is a moment in the start symbol of the first PRACH resource.
  • the channel access type corresponding to the first PRACH resource is determined according to the length of time for channel access or the time position for channel access. That is, the channel access type corresponding to the first PRACH resource can be determined according to the length of the LBT time (for example, the first period L1 or the second period L2), or according to the location of the LBT.
  • the start time of the first PRACH resource is determined according to the length of time for channel access or the time position for channel access. That is, the starting time of the first PRACH resource can be determined according to the length of the LBT (for example, the first period L1 or the second period L2 or the third period L3), or according to the location of the LBT.
  • the value of L3 is greater than L1 and less than L2.
  • the start time of the start symbol of the first PRACH resource is the first time
  • the start time of the first PRACH resource includes one of the following:
  • the start moment of the first PRACH resource is the first moment
  • the time interval between the start time of the first PRACH resource and the first time is a first period L1 or a second period L2 or a third period L3;
  • the time interval between the start time of the first PRACH resource and the first time is the time period corresponding to the difference (L1-Ngp) between the first time period L1 and the target time period Ngp, or the second time period L2 and the target time period Ngp
  • the time interval between the start time of the first PRACH resource and the first time is the time period corresponding to the difference between the second period L2 and one symbol length (L2-1 symbol length), where the second The time period L2 is greater than or equal to one symbol length, and the SCS corresponding to the first PRACH resource is 60 kHz;
  • the time interval between the start moment of the first PRACH resource and the first moment is the period corresponding to the second period L2 and the difference between a symbol length and the target period Ngp (L2-1 symbol length-Ngp) , Where the second time period L2 is greater than or equal to one symbol length, and the SCS corresponding to the first PRACH resource is 60 kHz, and the target time period Ngp is the guard period corresponding to the first PRACH format.
  • the first PRACH resource is a resource corresponding to the first PRACH format.
  • the guard period corresponding to the first PRACH format (symbol length corresponding to the first PRACH format-information segment part corresponding to the first PRACH format-cyclic prefix part corresponding to the first PRACH format).
  • a PRACH time unit may include multiple PRACH resources, and the start time of multiple PRACH resources in the same PRACH time unit in the start symbol of the corresponding PRACH resource may be The same can be different.
  • the start time of the first PRACH resource can satisfy the situation 1-5.
  • the first PRACH format occupies 2 symbols in the time domain
  • the The start symbol of the first PRACH resource is symbol 7.
  • the first PRACH resource corresponds to 15kHz SCS and 30kHz SCS (cases 1 to 3) and 60kHz SCS (cases 4 and 5), and the LBT time length is L2, that is, 25us.
  • the start time of the first PRACH resource is the first time; in case 2, the time interval between the start time of the first PRACH resource and the first time is the first Period L1 or second period L2 or third period L3; in case 3, the time interval between the start moment of the first PRACH resource and the first moment is the difference between the first period L1 and the target period Ngp ( The period corresponding to L1-Ngp), or the period corresponding to the difference between the second period L2 and the target period Ngp (L2-Ngp), or the period corresponding to the difference between the third period L3 and the target period Ngp (L3-Ngp) Time period; In case 4, the time interval between the start time of the first PRACH resource and the first time is the difference between the second time period L2 and a symbol length (L2-1 symbol length) Time period; In case 5, the time interval between the start time of the first PRACH resource and the first time is the difference between the second period L2 and the length of one symbol and the target period Ngp (L2-1
  • the first PRACH resource corresponding to 15 kHz SCS may be as shown in FIG. 4
  • the first PRACH resource corresponding to 30 kHz SCS may be as shown in FIG. 5
  • the first PRACH resource corresponding to 60 kHz SCS may be as shown in FIG.
  • the start moment of the first PRACH resource includes the start moment of channel access corresponding to at least one PRACH resource. It may also be that the start time of the first PRACH resource includes the start time of channel access corresponding to PRACH sequence transmission on at least one PRACH resource.
  • the terminal device may determine the at least one PRACH resource according to the start time of channel access corresponding to the at least one PRACH resource.
  • the start time of the first PRACH resource is determined according to at least one of the following information:
  • the start moment of the first PRACH resource is a moment in the start symbol of the first PRACH resource or a moment before the start symbol of the first PRACH resource.
  • the start time of multiple PRACH resources may be the same or different.
  • the starting time of the PRACH resources corresponding to different PRACH formats may be the same or different.
  • the start time of the start symbol of the first PRACH resource is the first time, and the start time of the first PRACH resource includes one of the following:
  • the start moment of the first PRACH resource is the first moment
  • the time interval between the start time of the first PRACH resource and the first time is the first period L1 or the second period L2 or the third period L3, and the start time of the first PRACH resource is located at the first time prior to;
  • the start time of the first PRACH resource is the end time of the previous transmission.
  • the start time of the first PRACH resource can satisfy the situation AC, assuming that the first PRACH format occupies 2 symbols in the time domain, and the start of the first PRACH resource
  • the symbol is symbol 7
  • the first PRACH resource corresponds to 30kHz SCS, and the LBT time length is L2, which is 25us.
  • the start time of the first PRACH resource is the first time
  • the time interval between the start time of the first PRACH resource and the first time is the first Period L1 or second period L2 or third period L3, and the start time of the first PRACH resource is before the first time
  • the start time of the first PRACH resource is the end of the last transmission time.
  • case C includes case C-1, if another PRACH resource is before the first PRACH resource, the start time of the first PRACH resource is the end time of the information segment part of the other PRACH resource .
  • case C includes case C-2. If another PRACH resource is before the first PRACH resource, the start time of the first PRACH resource is the end time of the guard period of the other PRACH resource.
  • the first indication information is also used to determine the corresponding PRACH resource configuration according to different channel access types, where the first channel access type corresponds to the first PRACH resource configuration, and the second The channel access type corresponds to the second PRACH resource configuration. Further, in response to the first indication information, the terminal device determines the corresponding PRACH resource configuration according to different channel access types.
  • Cat-2 LBT corresponds to the first PRACH resource configuration
  • Cat-4 LBT corresponds to the second PRACH resource configuration
  • the gap between two adjacent PRACH resources in the second PRACH resource configuration is greater than or equal to that of the second PRACH resource configuration. The gap between.
  • the second PRACH resource configuration corresponding to Cat-4 LBT does not include PRACH resources spanning half-slots.
  • an example of the first PRACH resource configuration and the second PRACH resource configuration may be as shown in FIG. 8. Assuming that the first PRACH format occupies 2 symbols in the time domain, the PRACH time The unit includes a time slot, the first PRACH resource corresponds to 30kHz SCS, and the LBT time length is L2, that is, 25us.
  • the network device may also send second indication information to the terminal device, where the second indication information is used to indicate whether the network device shares the PRACH time unit in its COT with the terminal Equipment for PRACH transmission.
  • the second indication information is used to instruct the network device to share the PRACH time unit in its COT with the terminal device, then the terminal device can use Cat-1 or Cat-2 for channel access before transmitting on the PRACH resource .
  • the second indication information is used to indicate that the network device does not share the PRACH time unit in its own COT with the terminal device, and the terminal device cannot send the PRACH sequence through the PRACH time unit in the COT.
  • the terminal device if the terminal device obtains the channel use right of the first PRACH resource at the second moment, and the second moment is located at the start moment of the start symbol of the first PRACH resource Before, the terminal device sends the extended cyclic prefix (CP) of the PRACH symbol in the time interval between the second moment and the start moment of the start symbol of the first PRACH resource.
  • the channel access type corresponding to the first PRACH resource is type 4 (Cat-4).
  • the terminal device starts to transmit the extended CP of the PRACH symbol from the moment when the LBT is successful, and the starting position of the information segment in the PRACH symbol remains unchanged.
  • the terminal device can occupy the channel in advance by sending the extended CP.
  • channel access may also be referred to as channel detection or LBT, and the channel access type may also be referred to as a channel access scheme.
  • the terminal device receives the third indication information sent by the network device, the third indication information includes a second index, and the second index is used to indicate the second configuration information.
  • the second configuration information includes time domain location information of the PRACH resource corresponding to the first PRACH format on the authorized carrier, and the first configuration information is different from the second configuration information. That is, the PRACH configuration methods on the unlicensed carrier and the licensed carrier are different, or in other words, the index tables are different.
  • the network device can configure the start symbol of the PRACH resource and/or the start time of the PRACH resource on the unlicensed carrier, so that the terminal device can be based on the start symbol of the PRACH resource and/or PRACH
  • the start time of the resource determines the PRACH resource on the unlicensed carrier.
  • FIG. 9 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application.
  • the terminal device 300 includes:
  • the communication unit 310 is configured to receive first indication information, where the first indication information is used to determine time domain location information of a first PRACH resource on an unlicensed carrier, and the time domain location information includes the start symbol of the first PRACH resource And/or the start time of the first PRACH resource;
  • the processing unit 320 is configured to determine the first PRACH resource on the unlicensed carrier according to the first indication information.
  • the start symbol of the first PRACH resource includes the start symbol of at least one PRACH resource in the PRACH time unit.
  • the PRACH time unit includes at least one of the following:
  • the time domain location information further includes location information of the PRACH time unit and/or quantity information of PRACH resources included in the PRACH time unit;
  • the processing unit 320 is further configured to determine the PRACH time unit according to the location information of the PRACH time unit and/or the quantity information of the PRACH resources included in the PRACH time unit.
  • the channel access type corresponding to the first PRACH resource in the PRACH time unit is indicated by the network device.
  • the start symbol of the first PRACH resource is determined according to at least one of the following information:
  • the channel access type corresponding to the first PRACH resource is one of Type 1, Type 2, and Type 4; or
  • the channel access type corresponding to the first PRACH resource is one of type 2 and type 4.
  • the time for channel access is less than or equal to the first time period
  • the time for channel access is greater than the first period and less than or equal to the second period;
  • the time for channel access is greater than the first time period.
  • the first time period is 16 us
  • the second time period is 25 us.
  • the time used for channel access includes one symbol
  • the time for channel access includes one or two symbols.
  • the number of symbols occupied by the first PRACH resource in the time domain includes 3 symbols, 5 symbols, 7 symbols, and 13 symbols.
  • the interval between two adjacent first PRACH resources includes one of 3 symbols, 5 symbols, 7 symbols, and 13 symbols in the time domain;
  • the SCS corresponding to the first PRACH resource is 60 kHz, and the time for channel access includes one symbol
  • the number of symbols occupied by the first PRACH resource in the time domain includes 3 symbols, 5 symbols, and 7 symbols.
  • Symbol, one of 13 symbols, or the interval between two adjacent first PRACH resources includes one of 3 symbols, 5 symbols, 7 symbols, and 13 symbols in the time domain;
  • the SCS corresponding to the first PRACH resource is 60 kHz, and the time for channel access includes two symbols
  • the number of symbols occupied by the first PRACH resource in the time domain includes 4 symbols, 6 symbols, and 8 symbols.
  • One of four symbols, one of 14 symbols, or, the interval between two adjacent first PRACH resources includes one of 4 symbols, 6 symbols, 8 symbols, and 14 symbols in the time domain .
  • the start moment of the first PRACH resource includes the start moment of at least one PRACH resource.
  • the start time of the first PRACH resource is determined according to at least one of the following information:
  • the channel access type corresponding to the first PRACH resource is determined according to the length of time for channel access or the time position for channel access.
  • the start time of the start symbol of the first PRACH resource is the first time, and the start time of the first PRACH resource includes one of the following:
  • the start moment of the first PRACH resource is the first moment
  • the time interval between the start time of the first PRACH resource and the first time is the first time period or the second time period;
  • the time interval between the start time of the first PRACH resource and the first time is the period corresponding to the difference between the first period and the target period, or the period corresponding to the difference between the second period and the target period, the target The time period is the guard period corresponding to the first PRACH format, and the first PRACH resource is the resource corresponding to the first PRACH format;
  • the time interval between the start time of the first PRACH resource and the first time is a time period corresponding to the difference between a second time period and a symbol length, where the second time period is greater than or equal to a symbol length, and
  • the SCS corresponding to the first PRACH resource is 60 kHz;
  • the time interval between the start time of the first PRACH resource and the first time is a time period corresponding to the difference between the second time period and a symbol length and the target time period, wherein the second time period is greater than or equal to one symbol Length, and the SCS corresponding to the first PRACH resource is 60 kHz, the target period is the guard period corresponding to the first PRACH format, and the first PRACH resource is the resource corresponding to the first PRACH format.
  • the start moment of the first PRACH resource includes the start moment of channel access corresponding to at least one PRACH resource.
  • the start time of the first PRACH resource is determined according to at least one of the following information:
  • the channel access type corresponding to the first PRACH resource is determined according to the length of time for channel access or the time position for channel access.
  • the start time of the start symbol of the first PRACH resource is the first time, and the start time of the first PRACH resource includes one of the following:
  • the start moment of the first PRACH resource is the first moment
  • the time interval between the start time of the first PRACH resource and the first time is a first time period or a second time period, and the start time of the first PRACH resource is located before the first time;
  • the start time of the first PRACH resource is the end time of the previous transmission.
  • the first indication information is also used to determine the corresponding PRACH resource configuration according to different channel access types, where the first channel access type corresponds to the first PRACH resource configuration, and the second channel access type corresponds to the second channel access type.
  • PRACH resource configuration ;
  • the processing unit 320 is also used for:
  • the corresponding PRACH resource configuration is determined according to different channel access types.
  • the first indication information includes a first index
  • the first index is used to indicate first configuration information
  • the first configuration information includes the time domain location information of the first PRACH resource on the unlicensed carrier.
  • the terminal device 300 obtains the channel use right of the first PRACH resource at a second time, which is located before the start time of the start symbol of the first PRACH resource, and the communication unit 310 also uses The extended cyclic prefix of the PRACH symbol is sent in the time interval between the second moment and the start moment of the start symbol of the first PRACH resource.
  • terminal device 300 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 300 are to implement the method shown in FIG.
  • the corresponding process of the terminal equipment in 200 will not be repeated here.
  • Fig. 10 shows a schematic block diagram of a network device 400 according to an embodiment of the present application.
  • the network device 400 includes:
  • the communication unit 410 is configured to send first indication information, where the first indication information is used by the terminal device to determine the time domain location information of the first PRACH resource on the unlicensed carrier, and the time domain location information includes the start of the first PRACH resource. The start symbol and/or the start time of the first PRACH resource.
  • the start symbol of the first PRACH resource includes the start symbol of at least one PRACH resource in the PRACH time unit.
  • the PRACH time unit includes at least one of the following:
  • the time domain location information further includes location information of the PRACH time unit and/or quantity information of PRACH resources included in the PRACH time unit;
  • the first indication information is also used for the terminal device to determine the PRACH time unit according to the location information of the PRACH time unit and/or the quantity information of the PRACH resources included in the PRACH time unit.
  • the channel access type corresponding to the first PRACH resource in the PRACH time unit is indicated by the network device to the terminal device.
  • the start symbol of the first PRACH resource is determined according to at least one of the following information:
  • the subcarrier interval SCS corresponding to the first PRACH resource is the subcarrier interval SCS corresponding to the first PRACH resource.
  • the channel access type corresponding to the first PRACH resource is one of Type 1, Type 2, and Type 4; or
  • the channel access type corresponding to the first PRACH resource is one of type 2 and type 4.
  • the time for channel access is less than or equal to the first time period
  • the time for channel access is greater than the first period and less than or equal to the second period;
  • the time for channel access is greater than the first time period.
  • the first time period is 16 us
  • the second time period is 25 us.
  • the time used for channel access includes one symbol
  • the time for channel access includes one or two symbols.
  • the number of symbols occupied by the first PRACH resource in the time domain includes 3 symbols, 5 symbols, 7 symbols, and 13 symbols.
  • the interval between two adjacent first PRACH resources includes one of 3 symbols, 5 symbols, 7 symbols, and 13 symbols in the time domain;
  • the SCS corresponding to the first PRACH resource is 60 kHz, and the time for channel access includes one symbol
  • the number of symbols occupied by the first PRACH resource in the time domain includes 3 symbols, 5 symbols, and 7 symbols.
  • Symbol, one of 13 symbols, or the interval between two adjacent first PRACH resources includes one of 3 symbols, 5 symbols, 7 symbols, and 13 symbols in the time domain;
  • the SCS corresponding to the first PRACH resource is 60 kHz, and the time for channel access includes two symbols
  • the number of symbols occupied by the first PRACH resource in the time domain includes 4 symbols, 6 symbols, and 8 symbols.
  • One of four symbols, one of 14 symbols, or, the interval between two adjacent first PRACH resources includes one of 4 symbols, 6 symbols, 8 symbols, and 14 symbols in the time domain .
  • the start moment of the first PRACH resource includes the start moment of at least one PRACH resource.
  • the start time of the first PRACH resource is determined according to at least one of the following information:
  • the channel access type corresponding to the first PRACH resource is determined according to the length of time for channel access or the time position for channel access.
  • the start time of the start symbol of the first PRACH resource is the first time, and the start time of the first PRACH resource includes one of the following:
  • the start moment of the first PRACH resource is the first moment
  • the time interval between the start time of the first PRACH resource and the first time is the first time period or the second time period;
  • the time interval between the start time of the first PRACH resource and the first time is the period corresponding to the difference between the first period and the target period, or the period corresponding to the difference between the second period and the target period, the target The time period is the guard period corresponding to the first PRACH format, and the first PRACH resource is the resource corresponding to the first PRACH format;
  • the time interval between the start time of the first PRACH resource and the first time is a time period corresponding to the difference between a second time period and a symbol length, where the second time period is greater than or equal to a symbol length, and
  • the SCS corresponding to the first PRACH resource is 60 kHz;
  • the time interval between the start time of the first PRACH resource and the first time is a time period corresponding to the difference between the second time period and a symbol length and the target time period, wherein the second time period is greater than or equal to one symbol Length, and the SCS corresponding to the first PRACH resource is 60 kHz, the target period is the guard period corresponding to the first PRACH format, and the first PRACH resource is the resource corresponding to the first PRACH format.
  • the start moment of the first PRACH resource includes the start moment of channel access corresponding to at least one PRACH resource.
  • the start time of the first PRACH resource is determined according to at least one of the following information:
  • the channel access type corresponding to the first PRACH resource is determined according to the length of time for channel access or the time position for channel access.
  • the start time of the start symbol of the first PRACH resource is the first time, and the start time of the first PRACH resource includes one of the following:
  • the start moment of the first PRACH resource is the first moment
  • the time interval between the start time of the first PRACH resource and the first time is a first time period or a second time period, and the start time of the first PRACH resource is located before the first time;
  • the start time of the first PRACH resource is the end time of the previous transmission.
  • the first indication information is also used to determine the corresponding PRACH resource configuration according to different channel access types, where the first channel access type corresponds to the first PRACH resource configuration, and the second channel access type corresponds to the second channel access type. PRACH resource configuration.
  • the first indication information includes a first index
  • the first index is used to indicate first configuration information
  • the first configuration information includes the time domain location information of the first PRACH resource on the unlicensed carrier.
  • the network device 400 may correspond to the network device in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the network device 400 are to implement the method shown in FIG. 3 respectively.
  • the corresponding process of the network equipment in 200 will not be repeated here.
  • FIG. 11 is a schematic structural diagram of a communication device 500 provided by an embodiment of the present application.
  • the communication device 500 shown in FIG. 11 includes a processor 510, and the processor 510 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the communication device 500 may further include a memory 520.
  • the processor 510 may call and run a computer program from the memory 520 to implement the method in the embodiment of the present application.
  • the memory 520 may be a separate device independent of the processor 510, or may be integrated in the processor 510.
  • the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 530 may include a transmitter and a receiver.
  • the transceiver 530 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 500 may specifically be a network device in an embodiment of the present application, and the communication device 500 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not repeated here. .
  • the communication device 500 may specifically be a mobile terminal/terminal device of an embodiment of the present application, and the communication device 500 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application. For simplicity , I won’t repeat it here.
  • Fig. 12 is a schematic structural diagram of a device in an embodiment of the present application.
  • the apparatus 600 shown in FIG. 12 includes a processor 610, and the processor 610 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the apparatus 600 may further include a memory 620.
  • the processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.
  • the memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
  • the device 600 may further include an input interface 630.
  • the processor 610 can control the input interface 630 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the device 600 may further include an output interface 640.
  • the processor 610 can control the output interface 640 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the device can be applied to the network equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application.
  • the device can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application.
  • details are not described herein again.
  • the device can be applied to the mobile terminal/terminal device in the embodiment of this application, and the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application.
  • the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application.
  • the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of this application.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip.
  • FIG. 13 is a schematic block diagram of a communication system 700 according to an embodiment of the present application. As shown in FIG. 13, the communication system 700 includes a terminal device 710 and a network device 720.
  • the terminal device 710 can be used to implement the corresponding function implemented by the terminal device in the above method
  • the network device 720 can be used to implement the corresponding function implemented by the network device in the above method. For brevity, it will not be repeated here. .
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • Synchlink DRAM SLDRAM
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application ,
  • the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application ,
  • I will not repeat it here.
  • the embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For brevity, I won't repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • I won’t repeat it here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de communication sans fil, un dispositif terminal et un dispositif de réseau, le dispositif de réseau pouvant configurer un symbole de démarrage d'une ressource de PRACH et/ou un moment de démarrage de la ressource de PRACH sur une porteuse sans licence, de sorte que le dispositif terminal puisse déterminer la ressource de PRACH sur la porteuse sans licence sur la base du symbole de démarrage de la ressource de PRACH et/ou du moment de démarrage de la ressource de PRACH. Le procédé comprend les étapes suivantes : un dispositif terminal reçoit des premières informations d'indication, les premières informations d'indication étant utilisées pour déterminer des informations de position de domaine temporel d'une première ressource de PRACH sur une porteuse sans licence et les informations de position de domaine temporel comprenant un symbole de démarrage de la première ressource de PRACH et/ou un moment de démarrage de la première ressource de PRACH ; et le dispositif terminal détermine, en fonction des premières informations d'indication, la première ressource de PRACH sur la porteuse sans licence.
PCT/CN2019/080499 2019-03-29 2019-03-29 Procédé de communication sans fil, dispositif terminal et dispositif de réseau Ceased WO2020198962A1 (fr)

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PCT/CN2019/080499 WO2020198962A1 (fr) 2019-03-29 2019-03-29 Procédé de communication sans fil, dispositif terminal et dispositif de réseau
CN201980088277.5A CN113273302B (zh) 2019-03-29 2019-03-29 无线通信方法、终端设备和网络设备

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CN114586390B (zh) * 2022-01-24 2025-11-25 北京小米移动软件有限公司 一种资源指示方法、资源确定方法及其装置

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