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WO2025160747A1 - Procédé et appareil de commutation de mode de transmission, dispositif, support et produit-programme - Google Patents

Procédé et appareil de commutation de mode de transmission, dispositif, support et produit-programme

Info

Publication number
WO2025160747A1
WO2025160747A1 PCT/CN2024/074703 CN2024074703W WO2025160747A1 WO 2025160747 A1 WO2025160747 A1 WO 2025160747A1 CN 2024074703 W CN2024074703 W CN 2024074703W WO 2025160747 A1 WO2025160747 A1 WO 2025160747A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission
level
information
transmission mode
terminal device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/074703
Other languages
English (en)
Chinese (zh)
Inventor
李海涛
胡奕
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
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2024/074703 priority Critical patent/WO2025160747A1/fr
Publication of WO2025160747A1 publication Critical patent/WO2025160747A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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 communication technology, and in particular to a method, device, equipment, medium and program product for converting a transmission mode.
  • the Long Term Evolution (LTE) system supports a contention-based random access method, which includes message 1 (msg1), message 2 (msg2), message 3 (msg3), and message 4 (msg4).
  • a terminal device needs to be in a connected state in order to transmit uplink information.
  • the terminal device is in an idle state or an inactive state, how to transmit uplink information with high reliability is still an urgent problem to be solved.
  • This application provides a method, apparatus, device, medium, and program product for converting a transmission mode.
  • the technical solution at least includes:
  • a method for converting a transmission mode is provided.
  • the method is performed by a terminal device in an idle state or an inactive state, and the method includes:
  • the first uplink transmission mode or the second uplink transmission mode includes: using pre-configured physical uplink shared channel (Physical Uplink Shared CHannel, PUSCH) resource transmission.
  • Physical Uplink Shared CHannel Physical Uplink Shared CHannel, PUSCH
  • a method for receiving information is provided, the method being executed by a network device, the method comprising:
  • the second uplink transmission mode is an uplink transmission mode determined by a terminal device in an idle state or an inactive state when the first condition is met.
  • the first uplink transmission mode or the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • a transmission mode conversion device including:
  • a conversion module configured to convert a transmission mode of the first information from a first uplink transmission mode to a second uplink transmission mode when a first condition is met;
  • the first uplink transmission mode or the second uplink transmission mode includes: using pre-configured PUSCH resources for transmission.
  • an information receiving device comprising:
  • a receiving module configured to receive first information transmitted using a first uplink transmission mode; and receive first information transmitted using a second uplink transmission mode;
  • the second uplink transmission mode is an uplink transmission mode determined by a terminal device in an idle state or an inactive state when the first condition is met.
  • the first uplink transmission mode or the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • a terminal device including:
  • 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 executable instructions to implement the transmission mode conversion method as described in the above aspects.
  • a network device including:
  • 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 executable instructions to implement the information receiving methods in various aspects described above.
  • 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 a transmission mode conversion method or information receiving method as described in the above aspects.
  • 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 transmission mode conversion method or information receiving method of the above-mentioned various aspects.
  • a computer program product or computer program 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 transmission mode conversion method or information receiving method as described in the above aspects.
  • a terminal device in an idle state or an inactive state converts the transmission mode of the first information from a first uplink transmission mode to a second uplink transmission mode when a first condition is met; wherein the first uplink transmission mode or the second uplink transmission mode includes: using pre-configured PUSCH resources for transmission, so that when the first information fails to be transmitted, it converts to a different uplink transmission mode, thereby improving the transmission possibility in the idle state or the inactive state, and increasing the success rate of uplink transmission in the idle state or the inactive state.
  • FIG1 is a schematic diagram showing a user plane transmission solution of an early data transmission mechanism provided by a related art
  • FIG2 shows a schematic diagram of a contention-based random access process provided by the related art
  • FIG3 is a schematic diagram showing coverage enhancement levels provided by related art
  • FIG4 shows a schematic diagram of a mobile communication system provided by an exemplary embodiment of the present application.
  • FIG5 shows a flow chart of a method for converting a transmission mode provided by an exemplary embodiment of the present application
  • FIG6 is a schematic diagram showing a method for converting a transmission mode provided by an exemplary embodiment of the present application.
  • FIG7 is a schematic diagram showing a method for converting a transmission mode provided by an exemplary embodiment of the present application.
  • FIG8 is a schematic diagram showing a method for converting a transmission mode provided by an exemplary embodiment of the present application.
  • FIG9 is a schematic diagram showing a method for converting a transmission mode provided by an exemplary embodiment of the present application.
  • FIG10 shows a flow chart of an information receiving method provided by an exemplary embodiment of the present application.
  • FIG11 is a schematic diagram showing a method for converting a transmission mode provided by an exemplary embodiment of the present application.
  • FIG12 is a schematic diagram showing a method for converting a transmission mode provided by an exemplary embodiment of the present application.
  • FIG13 is a schematic diagram showing a method for converting a transmission mode provided by an exemplary embodiment of the present application.
  • FIG14 shows a block diagram of a transmission mode conversion device provided by an exemplary embodiment of the present application.
  • FIG15 shows a block diagram of an information receiving device provided by an exemplary embodiment of the present application.
  • FIG16 shows a schematic structural diagram of a terminal device provided by an exemplary embodiment of the present application.
  • FIG17 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 disclosure 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.
  • the EDT mechanism is introduced in the LTE system.
  • the terminal device may always remain in the idle state (idle) or suspended state (suspend). Or in an inactive state, the transmission of uplink and/or downlink small data packets is completed.
  • a schematic diagram of a user plane transmission solution is shown in FIG1 .
  • UE 101 User Equipment (UE) 101 and the network device as Evolved Node B (eNB) 102 as an example, after UE 101 transmits a random access preamble (Random Access Preamble) to eNB 102, eNB 102 feeds back a random access response (Random Access Response) to UE 101.
  • UE 101 transmits a random access preamble (Random Access Preamble) to eNB 102
  • eNB 102 feeds back a random access response (Random Access Response) to UE 101.
  • Random Access Preamble Random Access Preamble
  • eNB 102 feeds back a random access response (Random Access Response) to UE 101.
  • Step 1 UE 101 sends uplink data and a Radio Resource Control (RRC) connection resume request (RRCConnectionResumeRequest) to eNB 102.
  • RRC Radio Resource Control
  • the RRC connection resume request includes at least one of the following: resume ID, resume reason (resumeCause), and short resume Medium Access Control Integrity (shortResume MAC-I).
  • Step 2 eNB102 sends a UE Context Resume Request to the Mobility Management Entity (MME) 103.
  • MME Mobility Management Entity
  • Step 3 The bearer modification process is performed between MME103 and Serving Gateway (S-GW) 104, including: MME103 sends a modify bearer request (Modify Bearer Request) to S-GW104, and S-GW104 sends a modify bearer response (Modify Bearer Response) to MME103.
  • S-GW Serving Gateway
  • Step 4 MME103 sends a UE Context Resume Response to eNB102.
  • Step 5 eNB 102 sends uplink data to S-GW 104 .
  • Step 6 S-GW104 sends downlink data to eNB102.
  • Step 7 The S1 Suspend procedure is executed between eNB102 and MME103, and the bearer modification procedure is executed between MME103 and the service gateway S-GW104, including: eNB102 sends an S1 Suspend Request to MME103, MME103 sends a Modify Bearer Request to S-GW104, S-GW104 sends a Modify Bearer Response to MME103, and MME103 sends an S1 Suspend Response to eNB102.
  • Step 8 eNB 102 sends downlink data and RRC Connection Release (RRCConnectionRelease) to UE 101.
  • the RRC Connection Release includes at least one of the following: releaseCause, resumeID, and next hopping chain count (NCC).
  • the terminal device does not enter the connected state, and the transmission of the small data packet is completed by remaining in the idle state, the suspended state, or the inactive state.
  • the network device will configure a maximum transport block size (TB size) allowed by the current network on the System Information Block Type 2 (SIB2).
  • TB size transport block size allowed by the current network on the System Information Block Type 2 (SIB2).
  • SIB2 System Information Block Type 2
  • the terminal device determines the amount of data to be transmitted. If it is less than the maximum TB size, the terminal device can use EDT; otherwise, the terminal device uses the normal connection establishment process to enter the connected state to transmit data.
  • FIG2 shows a schematic diagram of a contention-based random access process provided by related art, which includes the following steps:
  • Step 210 The terminal device 410 sends a message 1 (msg1): a random access preamble code to the network device 420.
  • the terminal device 410 sends a selected random access preamble on the time-frequency resources of the selected physical random access channel (PRACH). Based on the random access preamble, the network device 420 can estimate the uplink delay and the grant size required for the terminal device 410 to transmit message 3.
  • PRACH physical random access channel
  • Step 220 The network device 420 sends message 2 (msg2): Random Access Response (RAR) to the terminal device 410.
  • message 2 msg2: Random Access Response (RAR)
  • terminal device 410 After sending message 1 (msg1), terminal device 410 opens a random access response window (RAR window) and monitors the Physical Downlink Control Channel (PDCCH) within the RAR window.
  • RAR window random access response window
  • PDCCH Physical Downlink Control Channel
  • the PDCCH is scrambled with the Random Access Radio Network Temporary Identifier (RA-RNTI).
  • RA-RNTI Random Access Radio Network Temporary Identifier
  • the terminal device 410 can obtain the physical downlink shared channel (PDSCH) scheduled by the PDCCH, which contains the RAR.
  • PDSCH physical downlink shared channel
  • the RAR includes: Backoff Indicator (BI), used to indicate the backoff time for retransmitting message 1; Random Access Preamble IDentifier (RAPID), used to indicate the random access preamble code; Time Advance Group (TAG), used to adjust the uplink timing; Uplink Grant, used to indicate the uplink resource for scheduling message 3; Temporary Cell-Radio Network Temporary Identity (Temporary C-RNTI), used to scramble the PDCCH (initial access) of message 4.
  • BI Backoff Indicator
  • RAPID Random Access Preamble IDentifier
  • TAG Time Advance Group
  • Uplink Grant used to indicate the uplink resource for scheduling message 3
  • Temporary Cell-Radio Network Temporary Identity Temporary C-RNTI
  • Step 230 The terminal device 410 sends message 3 (msg3): Scheduled Transmission (ST) to the network device 420.
  • message 3 msg3: Scheduled Transmission (ST)
  • Message 3 is mainly used to notify the network device 420 of the event that triggered the random access process. For example, if the event is the initial access random process, the terminal device identification (ID) and establishment cause (establishment cause) will be carried in message 3; if the event is the radio resource control (RRC) re-establishment, the connection state terminal device ID and establishment cause will be carried. At the same time, The terminal device ID or the connected terminal device ID carried in message 3 can resolve the contention conflict in step 240 .
  • Step 240 The network device 420 sends message 4 (msg4): contention resolution message to the terminal device 410.
  • message 4 (msg4): contention resolution message
  • message 4 has two functions. First, message 4 can be used to resolve contention conflicts. Second, message 4 is a message for the network device 420 to transmit RRC configuration to the terminal device 410.
  • Resolving contention conflicts means that the terminal device 410 receives the PDSCH of message 4 and performs scheduling by matching the Common Control Channel Signal Distribution Unit (CCCH SDU) in the PDSCH.
  • CCCH SDU Common Control Channel Signal Distribution Unit
  • message 4 is scheduled using the PDCCH scrambled with the temporary C-RNTI.
  • the terminal device 410 does not carry the temporary C-RNTI in message 3. For example, if the random access process is initial access, message 4 uses the PDCCH scrambled by the temporary C-RNTI for scheduling.
  • CE level Coverage Enhancement Level
  • NB-IoT Narrow Band Internet of Things
  • Level 0, Level 1 corresponding to resistance to signal attenuation of 144dB, 154dB, and 164dB, respectively.
  • the number of message retransmissions between network devices and end devices is determined based on the CE level of the end device.
  • FIG3 is a schematic diagram of coverage enhancement levels provided by the related art.
  • a first signal coverage range within a distance R0 from network device 420 corresponds to CE Level 0 (CE 0)
  • a second signal coverage range between R0 and R1 from network device 420 corresponds to CE Level 1 (CE 1)
  • a third signal coverage range between R1 and R2 from network device 420 corresponds to CE Level 2 (CE 2).
  • the distance from network device 420 is greater than R2
  • the signal quality is too poor and does not correspond to the CE level.
  • the terminal device determines the CE level based on the Reference Signal Received Power (RSRP) measurement results and the RSRP threshold configured by the network device.
  • the network device is configured with three RSRP thresholds: RSRP1, RSRP2, and RSRP3, where RSRP1>RSRP2>RSRP3.
  • RSRP ⁇ RSRP1 the terminal device corresponds to CE level 0; when RSRP2 ⁇ RSRP ⁇ RSRP1, the terminal device corresponds to CE level 1; when RSRP3 ⁇ RSRP ⁇ RSRP2, the terminal device corresponds to CE level 2; when RSRP ⁇ RSRP3, the reference signal quality is too low to correspond to the CE level.
  • the CE level is level 2, which can resist a signal attenuation of 164 decibels.
  • PUR is a dedicated uplink resource that is allocated to a terminal device by the network equipment when the connection is released. PUR does not require a random access procedure and is a dedicated resource for UEs. Therefore, there is no contention or interference between devices using PUR resources.
  • 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 terminal device 410 and a network device 420, and may or may not include a terminal device 430, which is not limited in the present application.
  • the terminal device 410 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 (MID), augmented reality (AR) terminals, virtual reality (VR) terminals, mixed reality (MR) terminals, extended reality (XR) terminals, baffle reality (BR) terminals, cinematic reality (CR) terminals, deceived reality (DR) terminals, wearable devices, handles, electronic tags, controllers, wireless terminals in industrial control (Industrial Control), self-driving (Self-Driving), wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart
  • the network device 420 in the present application provides wireless communication functions, and the network device 420 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), Access Point (AP) in Wireless Fidelity (Wi-Fi) system, Wireless Relay Node, Wireless Backhaul Node, Transmission Point (TP) or Transmission and Reception Point (TRP), etc. It can also be the next generation Node B (gNB) or transmission point (TRP or TP) in the fifth generation (5G) mobile communication system, or the 5G system.
  • gNB next generation Node B
  • TRP transmission point
  • 5G fifth generation
  • the antenna panel may be one or a group of antenna panels (including multiple antenna panels) of a base station in a mobile communication 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 a 6th Generation (6G) mobile communication system, or a core network (CN), fronthaul, backhaul, radio access network (RAN), network slicing, or a serving cell, primary cell (PCell), primary secondary cell (PSCell), special cell (SpCell), secondary cell (SCell), or neighboring cell of a terminal device.
  • BBU baseband unit
  • DU distributed unit
  • B5G Fifth Generation
  • 6G 6th Generation
  • CN core network
  • fronthaul, backhaul radio access network
  • RAN radio access network
  • SCell secondary cell
  • the network device 420 and the terminal device 410 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 420;
  • downlink communication or downlink transmission, refers to sending signals or data to terminal device 410.
  • the terminal device 410 and the terminal device 430 communicate with each other via some air interface technology, such as a PC5 interface.
  • first sideline communication scenario refers to terminal device 410 sending a signal to terminal device 430
  • second sideline communication refers to terminal device 430 sending a signal to terminal device 410.
  • terminal device 410 and terminal device 430 are both within the network coverage and located in the same cell, or terminal device 410 and terminal device 430 are both within the network coverage but located in different cells, or terminal device 410 is within the network coverage but terminal device 430 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.
  • the contention-based random access method includes message 1 (msg1), message 2 (msg2), message 3 (msg3), and message 4 (msg4).
  • a terminal device In related technologies, a terminal device must be in a connected state to transmit uplink information. However, when the terminal device is in an idle or inactive state, how to transmit uplink information with high reliability remains an urgent problem.
  • FIG5 shows a flow chart of a method for switching transmission modes provided by an exemplary embodiment of the present application.
  • the method is executed by a terminal device in an idle or inactive state, and the method includes:
  • Step 510 When the first condition is met, the transmission mode of the first information is converted from the first uplink transmission mode to the second uplink transmission mode.
  • the first uplink transmission mode or the second uplink transmission mode includes: using pre-configured PUSCH resources for transmission.
  • transmission can be understood as at least one of direct transmission, direct transmission of message 3, transmission without scheduling, transmission without message 1, transmission without RAR, transmission without sending message 1, and transmission without receiving RAR.
  • Message 1 refers to message 1 during a random access process
  • RAR refers to message 2 during a random access process.
  • using preconfigured PUSCH resource transmission can be understood as: using at least one of contention-based PUSCH resource transmission, using message 3 direct transmission resource transmission, using PUSCH resource transmission without message 1, and using PUSCH resource transmission without RAR.
  • the first condition can be understood as at least one of a conversion condition, a switching condition, a transformation condition, and a fallback condition.
  • the reliability of the second uplink transmission mode is higher than the reliability of the first uplink transmission mode.
  • the uplink resources used by the second uplink transmission mode are better than or more than the uplink resources used by the first uplink transmission mode.
  • the first uplink transmission mode and the second uplink transmission mode are both direct transmission modes when the terminal device is in an idle state or an inactive state, without requiring Message 1 and/or RAR.
  • the PUSCH resource is a contention-based PUSCH resource.
  • the PUSCH resource is a resource used to transmit message 3 (msg3); for another example, in a message 3 direct transmission mechanism, the PUSCH resource is a resource used to directly transmit message 3.
  • the first information includes first signaling; or, the first information includes first signaling and first data.
  • the first signaling includes at least one of the following: an RRC connection establishment request (RRCSetupRequest), an RRC connection resumption request (RRCConnectionResumeRequest), and an early data request (EarlyDataRequest).
  • RRCSetupRequest an RRC connection establishment request
  • RRCConnectionResumeRequest an RRC connection resumption request
  • EarlyDataRequest an early data request
  • the RRC connection establishment request is used to request the establishment of an RRC connection.
  • the terminal device sends the RRC connection establishment request to the network device to initiate the connection process;
  • the RRC connection recovery request is used to request the restoration of the RRC connection.
  • the request is sent to the network device; the early data request is used to request partial data transmission before the RRC connection is established, so as to improve the connection speed and optimize the transmission performance.
  • the first uplink transmission mode and the second uplink transmission mode include at least one of the following three situations:
  • the first uplink transmission mode includes: using a pre-configured first type of PUSCH resource for transmission;
  • the second uplink transmission mode includes: using a pre-configured second type of PUSCH resource for transmission.
  • the first uplink transmission mode includes: using PUR for transmission; the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • the third scenario the first uplink transmission mode includes: using pre-configured PUSCH resources for transmission; the second uplink transmission mode includes: using EDT resources for transmission.
  • the PUSCH resources are resources configured by a network device.
  • the first uplink transmission mode includes: using a preconfigured first type of PUSCH resource for transmission;
  • the second uplink transmission mode includes: using a preconfigured second type of PUSCH resource for transmission.
  • the first condition includes: the number of times the terminal device transmits the first information reaches a first transmission number, and the first transmission number is the maximum number of transmission attempts corresponding to the first type of PUSCH resource.
  • the transmission mode of the first information is converted from using the preconfigured first type of PUSCH resource transmission to using the preconfigured second type of PUSCH resource transmission.
  • the first transmission number is configured by the network device.
  • Configuring the first transmission number through a network device can support a variety of configuration methods, thereby performing configuration according to actual needs.
  • the maximum number of retransmission attempts includes the initial transmission. For example, if the maximum number of retransmission attempts is four after the initial transmission fails, then a maximum of three retransmissions may be performed. In the embodiments of the present application, the maximum number of retransmission attempts includes the initial transmission.
  • the maximum number of transmission attempts does not include the initial transmission. For example, if the initial transmission fails and the maximum number of transmission attempts is 4, then a maximum of 4 retransmissions are allowed. In this case, the maximum number of transmission attempts can be understood as the maximum number of retransmission attempts.
  • the first repetition number is smaller than the second repetition number, the first repetition number is the repetition number corresponding to the first type of PUSCH resources, and the second repetition number is the repetition number corresponding to the second type of PUSCH resources.
  • a transmission or retransmission includes multiple repetitions of the same information.
  • the number of repetitions refers to the number of times the same information is repeated in a transmission or retransmission. For example, if the string to be transmitted is 0110 and the number of repetitions is 3, the transmitted string is 011001100110.
  • NTN non-terrestrial network
  • the method further includes: retransmitting the first information if transmission of the first information fails using the preconfigured first type PUSCH resources.
  • Possible situations in which the transmission of the first information fails include at least one of the following: the first timer times out; the network device indicates that the transmission of the first information fails or is terminated; the transmission of the first information is interfered with by other devices; multiple devices attempt to transmit the first information simultaneously.
  • the first timer is a timer started when the terminal device uses the first type of PUSCH resource to transmit the first information, and the first timer is used to limit the time for transmitting the first information.
  • the first information is retransmitted.
  • the first timer limits the time for transmitting the first information to 100 milliseconds, with the moment when the terminal device starts transmitting the first information using the first type of PUSCH resource as the starting moment.
  • the first timer exceeds 100 milliseconds, the first information is retransmitted.
  • the implementation is simple and the control is convenient.
  • the method further comprises: if the i-th retransmission fails, performing an i+1-th retransmission until the number of transmissions of the first information reaches the first number of transmissions;
  • the first number of transmission attempts is the maximum number of transmission attempts corresponding to the first type of PUSCH resources, and i is a positive integer.
  • a first type of PUSCH resource is associated with a first CE level
  • a second type of PUSCH resource is associated with a second CE level
  • CE levels There are three CE levels: Level 0, Level 1, and Level 2, corresponding to resistance to signal attenuation of 144dB, 154dB, and 164dB, respectively.
  • the number of message repetitions between network devices and end devices is determined by the CE level of the end device.
  • the first CE level is a CE level determined by the terminal device based on a reference signal receiving power (RSRP) measurement result and an RSRP threshold value configured by the network device; or, the first CE level is a CE level specified by the network device when the RRC connection is released.
  • RSRP reference signal receiving power
  • the terminal device obtains the signal quality of the cell-specific reference signal (CRS) by measuring the CRS, and the measurement result of the CRS is represented by RSRP.
  • CRS cell-specific reference signal
  • the network device is configured with three RSRP thresholds: RSRP1, RSRP2, and RSRP3, where RSRP1>RSRP2>RSRP3.
  • RSRP ⁇ RSRP1 the terminal device corresponds to CE level 0; when RSRP2 ⁇ RSRP ⁇ RSRP1, the terminal device corresponds to CE level 1; when RSRP3 ⁇ RSRP ⁇ RSRP2, the terminal device corresponds to CE level 2; and when RSRP ⁇ RSRP3, the reference signal quality is too low to correspond to the CE level.
  • the first CE level is the CE level determined by the terminal device based on the RSRP measurement results and the RSRP threshold value configured by the network device
  • the first CE level is more in line with the scenario in which the terminal device is located and has higher accuracy
  • the CE level can be specified according to actual needs without the need for RSRP measurement.
  • the second CE level is a CE level obtained by increasing a preset level from the first CE level; or, the second CE level is a CE level determined by the terminal device based on an RSRP measurement result and an RSRP threshold value configured by the network device.
  • the second CE level is a CE level that is one level higher than the first CE level, for example, the first CE level is level 1 and the second CE level is level 2; or, the second CE level is a CE level that is two levels higher than the first CE level, with an upper limit of level 2, for example, the first CE level is level 0 and the second CE level is level 2, or, the first CE level is level 1 and the second CE level is level 2.
  • the second CE level is a CE level determined by the terminal device based on the current RSRP measurement result and the RSRP threshold value configured by the network device. The determination method is referred to above and will not be repeated here.
  • the second CE level is a CE level obtained by adding a preset level to the first CE level
  • RSRP measurement is not required and the implementation is simple;
  • the second CE level is a CE level determined by the terminal device based on the RSRP measurement results and the RSRP threshold value configured by the network device, the second CE level is more in line with the scenario in which the terminal device is located and has higher accuracy.
  • FIG6 is a schematic diagram of a method for converting a transmission mode provided by an exemplary embodiment of the present application.
  • the network device pre-configures multiple PUSCH resources, wherein the number of repetitions of the PUSCH resources corresponding to CE level 0 (CE 0) is 2, that is, after transmitting the first message, the first message is repeatedly transmitted once; the number of repetitions of the PUSCH resources corresponding to CE level 1 (CE 1) is 3, that is, after transmitting the first message, the first message is repeatedly transmitted twice; the number of repetitions of the PUSCH resources corresponding to CE level 2 (CE 2) is 4, that is, after transmitting the first message, the first message is repeatedly transmitted three times.
  • the periods of the PUSCH resources corresponding to different CE levels are the same or different. In the embodiment of the present application, the same period is used as an example for explanation.
  • the maximum number of transmission attempts is n+1 times, and the number of repetitions (the first number of repetitions) is 3, that is, after transmitting the first message, the first message is repeated twice.
  • n is a positive integer.
  • the transmission switches to using the preconfigured second type of PUSCH resources.
  • the number of repetitions corresponding to the second type of PUSCH resources (the second number of repetitions) is 4, which is greater than the first number of repetitions.
  • the first uplink transmission mode includes: using PUR for transmission;
  • the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • the first condition includes: occurrence of a first event.
  • Figure 7 is a schematic diagram of a transmission mode conversion method provided by an exemplary embodiment of the present application.
  • the network device is preconfigured with multiple PUSCH resources and PURs.
  • White squares indicate PUSCH resources, and squares filled with diagonal lines indicate PURs.
  • the PUSCH resources corresponding to different CE levels may have the same or different periods. In this embodiment, the same period is used as an example for illustration.
  • the number of repetitions is 4, that is, after transmitting the first message, the first message is repeated three times.
  • the transmission mode of the first message is switched from using the PUR to using the pre-configured PUSCH resource.
  • the first event includes at least one of the following: a second timer timeout; a network device indicating a PUR transmission failure; a network device indicating a PUR transmission termination; wherein the second timer is used to limit the PUR transmission time.
  • the network device indicates PUR transmission failure or termination by configuring indication signaling, and the indication signaling includes at least one of a physical downlink control channel (PDCCH), a medium access control control element (MAC CE), and an RRC signaling.
  • PDCCH physical downlink control channel
  • MAC CE medium access control control element
  • RRC radio resource control
  • the transmission mode is changed.
  • the first event is the timeout of the second timer
  • the implementation is simple and easy to control.
  • the first event is the network device indicating that the PUR transmission has failed or terminated
  • the conversion is performed according to the indication signaling. The operation is accurate and there is no need to introduce other mechanisms.
  • the preconfigured PUSCH resources are associated with the fourth CE level.
  • the fourth CE level is a CE level determined by the terminal device based on the RSRP measurement result and the RSRP threshold value configured by the network device.
  • the specific implementation details refer to the embodiment of the first case and are not repeated here.
  • the second timer is a timer started by the terminal device when using PUR transmission, and the second timer is used to limit the time of PUR transmission.
  • the operation principle of the second timer is the same as that of the first timer, which will not be repeated here.
  • PUR transmission failure may be due to deteriorating channel quality, and the PUR configured by the network device cannot adapt to the deteriorating channel quality. In this case, it falls back to using PUSCH resources for transmission (for example, direct transmission of message 3).
  • the PUSCH resource transmission mechanism can select PUSCH resources that adapt to the channel quality, improving the transmission success rate.
  • the first uplink transmission mode includes: using pre-configured PUSCH resources for transmission; the second uplink transmission mode includes: using EDT resources for transmission.
  • the first condition includes: occurrence of a second event.
  • Figure 8 is a schematic diagram of a transmission mode conversion method provided by an exemplary embodiment of the present application.
  • the network device is preconfigured with multiple PUSCH resources and EDT resources.
  • White squares are used to indicate PUSCH resources, and squares filled with crosses are used to indicate EDT resources.
  • the periods of PUSCH resources corresponding to different CE levels may be the same or different. In the embodiment of the present application, the same period is used as an example for illustration.
  • the number of repetitions is 3, that is, the first message is transmitted twice after the first message is transmitted.
  • the transmission mode of the first message is switched from using the pre-configured PUSCH resource to using the EDT resource.
  • the second event includes at least one of the following: a third timer times out; the network device indicates that the transmission of the first information fails; the network device indicates that the transmission of the first information is terminated; the number of times the first information is transmitted reaches a second transmission number;
  • the third timer is used to limit the time for transmitting the first information, and the second number of transmission attempts is the maximum number of transmission attempts corresponding to the PUSCH resource.
  • the transmission mode is changed.
  • the second event is the timeout of the third timer
  • the implementation is simple and easy to control.
  • the second event is the network device indicating that the transmission of the first information has failed or terminated
  • the conversion is performed according to the indication signaling, the operation is accurate, and there is no need to introduce other mechanisms.
  • the second event is that the number of times the first information is transmitted reaches the second number of transmissions, it is easy to monitor, and when the number of times the first information is transmitted has reached the maximum number of transmission attempts, the first information is likely to fail to be transmitted, which meets the timing for changing the transmission mode.
  • the maximum number of transmission attempts corresponding to the pre-configured PUSCH resources includes the initial transmission, and the maximum number of transmission attempts is n+1 times, where n is a positive integer.
  • the first retransmission is performed. After the first retransmission fails, the second retransmission is performed. After n retransmissions, the transmission switches to using EDT resources.
  • the second transmission number is configured by the network device.
  • Configuring the second transmission number through a network device can support a variety of configuration methods, thereby performing configuration according to actual needs.
  • the third timer is a timer started when the terminal device transmits the first information using the preconfigured PUSCH resource, and the third timer is used to limit the time for transmitting the first information.
  • the operation principle of the third timer is the same as that of the first timer and is not repeated here.
  • EDT resources are associated with a third CE level.
  • the third CE level is a CE level determined by the terminal device based on the RSRP measurement result and the RSRP threshold value configured by the network device; or, the third CE level is the CE level associated with the last transmission of the first information when the transmission of the first information fails; or, the third CE level is a CE level with a preset level added to the CE level associated with the last transmission of the first information when the transmission of the first information fails.
  • the terminal device obtains the signal quality of the CRS by measuring the CRS, and the measurement result of the CRS is represented by RSRP.
  • the network device is configured with three RSRP thresholds: RSRP1, RSRP2, and RSRP3, where RSRP1>RSRP2>RSRP3.
  • RSRP ⁇ RSRP1 the terminal device corresponds to CE level 0; when RSRP2 ⁇ RSRP ⁇ RSRP1, the terminal device corresponds to CE level 1; when RSRP3 ⁇ RSRP ⁇ RSRP2, the terminal device corresponds to CE level 2; and when RSRP ⁇ RSRP3, the reference signal quality is too low to correspond to the CE level.
  • the CE level associated with the last transmission of the first information is level m
  • the third CE level is level m, where m is 0, 1, or 2. For example, if the CE level associated with the last transmission of the first information is level 1, then the third CE level is level 1.
  • the third CE level is a CE level that is one level higher than the CE level associated with the last transmission of the first information. For example, if the CE level associated with the last transmission of the first information is 1, the third CE level is 2. Level; or, the third CE level is a CE level increased by two levels on the CE level associated with the last transmission of the first information, with an upper limit of 2 levels. For example, the CE level associated with the last transmission of the first information is level 0, and the third CE level is level 2, or, the CE level associated with the last transmission of the first information is level 1, and the third CE level is level 2.
  • the transmission mode conversion methods of the first situation and the second situation can be used in combination, that is, when a first event occurs, the transmission mode of the first information is converted from using PUR transmission to using preconfigured first type of PUSCH resource transmission, and then when the number of times the terminal device transmits the first information reaches the first transmission number, the transmission mode of the first information is converted from using preconfigured first type of PUSCH resource transmission to using preconfigured second type of PUSCH resource transmission.
  • the transmission mode conversion methods of the first situation and the third situation can be used in combination, that is, when the number of times the terminal device transmits the first information reaches the first transmission number, the transmission mode of the first information is converted from using the preconfigured first type of PUSCH resource transmission to using the preconfigured second type of PUSCH resource transmission; in the event of a second event, the transmission mode of the first information is converted from using the preconfigured second type of PUSCH resource transmission to using EDT resources transmission.
  • the method provided in this embodiment converts the transmission mode of the first information from the first uplink transmission mode to the second uplink transmission mode when the first condition is met; wherein, the first uplink transmission mode or the second uplink transmission mode includes: using pre-configured PUSCH resources for transmission, so that when the first information fails to be transmitted, it is converted to a different uplink transmission mode, thereby improving the transmission possibility in the idle state or inactive state, and increasing the success rate of uplink transmission in the idle state or inactive state.
  • FIG10 shows a flowchart of an information receiving method provided by an exemplary embodiment of the present application.
  • the method is executed by a network device and includes:
  • Step 1010 Receive first information transmitted using a first uplink transmission method.
  • transmission can be understood as at least one of direct transmission, direct transmission of message 3, transmission without scheduling, transmission without message 1, transmission without RAR, transmission without sending message 1, and transmission without receiving RAR.
  • Message 1 refers to message 1 during a random access process
  • RAR refers to message 2 during a random access process.
  • the first information includes first signaling; or, the first information includes first signaling and first data.
  • the first signaling includes at least one of the following: an RRC connection establishment request (RRCSetupRequest), an RRC connection resumption request (RRCConnectionResumeRequest), and an early data request (EarlyDataRequest).
  • RRCSetupRequest an RRC connection establishment request
  • RRCConnectionResumeRequest an RRC connection resumption request
  • EarlyDataRequest an early data request
  • the RRC connection establishment request is used to request the establishment of an RRC connection.
  • the terminal device sends the RRC connection establishment request to the network device to initiate the connection process;
  • the RRC connection recovery request is used to request the restoration of the RRC connection.
  • the request is sent to the network device; the early data request is used to request partial data transmission before the RRC connection is established, so as to improve the connection speed and optimize the transmission performance.
  • the second uplink transmission mode is an uplink transmission mode determined by a terminal device in an idle state or an inactive state when the first condition is met.
  • the first uplink transmission mode or the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • using preconfigured PUSCH resource transmission can be understood as: using at least one of contention-based PUSCH resource transmission, using message 3 direct transmission resource transmission, using PUSCH resource transmission without message 1, and using PUSCH resource transmission without RAR.
  • the first condition can be understood as at least one of a conversion condition, a handover condition, a transformation condition, and a fallback condition.
  • the reliability of the second uplink transmission mode is higher than the reliability of the first uplink transmission mode.
  • the uplink resources used by the second uplink transmission mode are better than or more than the uplink resources used by the first uplink transmission mode.
  • the first uplink transmission mode and the second uplink transmission mode are both when the terminal device is in an idle state or an inactive state. Direct transmission of Message 1 and/or RAR is required.
  • the PUSCH resource is a contention-based PUSCH resource.
  • the PUSCH resource is a resource used to transmit message 3 (msg3); for another example, in a message 3 direct transmission mechanism, the PUSCH resource is a resource used to directly transmit message 3.
  • the first uplink transmission mode and the second uplink transmission mode include at least one of the following three situations:
  • the first uplink transmission mode includes: using a pre-configured first type of PUSCH resource for transmission;
  • the second uplink transmission mode includes: using a pre-configured second type of PUSCH resource for transmission.
  • the first uplink transmission mode includes: using PUR for transmission; the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • the third scenario the first uplink transmission mode includes: using pre-configured PUSCH resources for transmission; the second uplink transmission mode includes: using EDT resources for transmission.
  • the PUSCH resources are resources configured by a network device.
  • the first uplink transmission mode includes: using a preconfigured first type of PUSCH resource for transmission;
  • the second uplink transmission mode includes: using a preconfigured second type of PUSCH resource for transmission.
  • the first condition includes: the number of times the terminal device transmits the first information reaches a first transmission number, and the first transmission number is the maximum number of transmission attempts corresponding to the first type of PUSCH resource.
  • the transmission mode of the first information is converted from using the preconfigured first type of PUSCH resource transmission to using the preconfigured second type of PUSCH resource transmission.
  • the maximum number of retransmission attempts includes the initial transmission. For example, if the maximum number of retransmission attempts is four after the initial transmission fails, then a maximum of three retransmissions may be performed. In the embodiments of the present application, the maximum number of retransmission attempts includes the initial transmission.
  • the first repetition number is smaller than the second repetition number, the first repetition number is the repetition number corresponding to the first type of PUSCH resources, and the second repetition number is the repetition number corresponding to the second type of PUSCH resources.
  • a transmission or retransmission includes multiple repetitions of the same information.
  • the number of repetitions refers to the number of times the same information is repeated in a transmission or retransmission. For example, if the string to be transmitted is 0110 and the number of repetitions is 3, the transmitted string is 011001100110.
  • NTN non-terrestrial network
  • the method further includes: configuring a first number of transmissions, where the first number of transmissions is a maximum number of transmission attempts corresponding to the first type of PUSCH resource.
  • Configuring the first transmission number through a network device can support a variety of configuration methods, thereby performing configuration according to actual needs.
  • a first type of PUSCH resource is associated with a first CE level
  • a second type of PUSCH resource is associated with a second CE level
  • CE levels There are three CE levels: Level 0, Level 1, and Level 2, corresponding to resistance to signal attenuation of 144dB, 154dB, and 164dB, respectively.
  • the number of message repetitions between network devices and end devices is determined by the CE level of the end device.
  • the first CE level is a CE level determined by the terminal device based on RSRP measurement results and an RSRP threshold value configured by the network device; or, the first CE level is a CE level specified by the network device when the RRC connection is released.
  • the terminal device obtains the signal quality of the CRS by measuring the CRS, and the measurement result of the CRS is represented by RSRP.
  • the network device is configured with three RSRP thresholds: RSRP1, RSRP2, and RSRP3, where RSRP1>RSRP2>RSRP3.
  • RSRP ⁇ RSRP1 the terminal device corresponds to CE level 0; when RSRP2 ⁇ RSRP ⁇ RSRP1, the terminal device corresponds to CE level 1; when RSRP3 ⁇ RSRP ⁇ RSRP2, the terminal device corresponds to CE level 2; and when RSRP ⁇ RSRP3, the reference signal quality is too low to correspond to the CE level.
  • the first CE level is the CE level determined by the terminal device based on the RSRP measurement results and the RSRP threshold value configured by the network device
  • the first CE level is more in line with the scenario in which the terminal device is located and has higher accuracy
  • the CE level can be specified according to actual needs without the need for RSRP measurement.
  • the second CE level is a CE level obtained by increasing a preset level from the first CE level; or, the second CE level is a CE level obtained by increasing a preset level from the first CE level to the terminal level.
  • the CE level is determined based on the RSRP measurement results and the RSRP threshold configured on the network device.
  • the second CE level is a CE level that is one level higher than the first CE level, for example, the first CE level is level 1 and the second CE level is level 2; or, the second CE level is a CE level that is two levels higher than the first CE level, with an upper limit of level 2, for example, the first CE level is level 0 and the second CE level is level 2, or, the first CE level is level 1 and the second CE level is level 2.
  • the second CE level is a CE level determined by the terminal device based on the current RSRP measurement result and the RSRP threshold value configured by the network device. The determination method is referred to above and will not be repeated here.
  • the second CE level is a CE level obtained by adding a preset level to the first CE level
  • RSRP measurement is not required and the implementation is simple;
  • the second CE level is a CE level determined by the terminal device based on the RSRP measurement results and the RSRP threshold value configured by the network device, the second CE level is more in line with the scenario in which the terminal device is located and has higher accuracy.
  • the first timer is a timer started when the terminal device uses the first type of PUSCH resource to transmit the first information, and the first timer is used to limit the time for transmitting the first information.
  • the implementation is simple and the control is convenient.
  • the first uplink transmission mode includes: using PUR for transmission;
  • the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • the first condition includes: occurrence of a first event.
  • Figure 7 is a schematic diagram of a transmission mode conversion method provided by an exemplary embodiment of the present application.
  • the network device is preconfigured with multiple PUSCH resources and PURs.
  • White squares indicate PUSCH resources, and squares filled with diagonal lines indicate PURs.
  • the PUSCH resources corresponding to different CE levels may have the same or different periods. In this embodiment, the same period is used as an example for illustration.
  • the number of repetitions is 4, that is, after transmitting the first message, the first message is repeated three times.
  • the transmission mode of the first message is switched from using the PUR to using the pre-configured PUSCH resource.
  • the first event includes at least one of the following: a second timer timeout; a network device indicating a PUR transmission failure; a network device indicating a PUR transmission termination; wherein the second timer is used to limit the PUR transmission time.
  • the second timer is a timer started by the terminal device when using PUR transmission, and the second timer is used to limit the time of PUR transmission.
  • the operation principle of the second timer is the same as that of the first timer, which will not be repeated here.
  • the method further includes: configuring a first indication signaling, where the first indication signaling is used to indicate a PUR transmission failure or termination.
  • the first indication signaling includes at least one of PDCCH, MAC CE, and RRC signaling.
  • the first transmission field in the first indication signaling is used to indicate PUR transmission failure or termination.
  • the first transmission field takes a value of 00 to indicate PUR transmission failure; the first transmission field takes a value of 01 to indicate PUR transmission termination.
  • the method further includes: configuring a PUR, wherein the PUR is used by the terminal device to transmit the PUR. As shown in FIG11 , the network device configures the PUR, and the terminal device uses the PUR for transmission.
  • the first uplink transmission mode includes: using pre-configured PUSCH resources for transmission; the second uplink transmission mode includes: using EDT resources for transmission.
  • the first condition includes: occurrence of a second event.
  • Figure 8 is a schematic diagram of a transmission mode conversion method provided by an exemplary embodiment of the present application.
  • the network device is preconfigured with multiple PUSCH resources and EDT resources.
  • White squares are used to indicate PUSCH resources, and squares filled with crosses are used to indicate EDT resources.
  • the periods of PUSCH resources corresponding to different CE levels may be the same or different. In the embodiment of the present application, the same period is used as an example for illustration.
  • the number of repetitions is 3, that is, the first message is transmitted twice after the first message is transmitted.
  • the transmission mode of the first message is switched from using the pre-configured PUSCH resource to using the EDT resource.
  • the second event includes at least one of the following: a third timer times out; the network device indicates that the transmission of the first information fails; the network device indicates that the transmission of the first information is terminated; the number of times the first information is transmitted reaches a second transmission number;
  • the third timer is used to limit the time for transmitting the first information, and the second number of transmission attempts is the maximum number of transmission attempts corresponding to the PUSCH resource.
  • the transmission mode is changed.
  • the second event is the timeout of the third timer
  • the implementation is simple and easy to control.
  • the second event is the network device indicating that the transmission of the first information has failed or terminated
  • the conversion is performed according to the indication signaling, the operation is accurate, and there is no need to introduce other mechanisms.
  • the second event is that the number of times the first information is transmitted reaches the second number of transmissions, it is easy to monitor, and when the number of times the first information is transmitted has reached the maximum number of transmission attempts, the first information is likely to fail to be transmitted, which meets the timing for changing the transmission mode.
  • the third timer is a timer started when the terminal device uses a preconfigured PUSCH resource to transmit the first information.
  • the operating principle of the third timer is the same as that of the first timer and will not be repeated here.
  • the method further includes: configuring a second indication signaling, the second indication signaling being used to indicate failure or termination of transmission of the first information.
  • the second transmission field in the second indication signaling is used to indicate the failure or termination of transmission of the first information.
  • the second transmission field takes a value of 00 to indicate the failure of transmission of the first information; the second transmission field takes a value of 01 to indicate the termination of transmission of the first information.
  • Figure 12 shows a schematic diagram of a method for converting a transmission mode provided by an exemplary embodiment of the present application.
  • the network device configures a second indication signaling, where the first indication signaling is used to indicate failure or termination of transmission of the first information.
  • the method further includes: configuring a second number of transmissions, where the second number of transmissions is a maximum number of transmission attempts corresponding to the PUSCH resource.
  • the method further includes: configuring EDT resources, the EDT resources being associated with the third CE level.
  • Figure 13 is a schematic diagram of a method for converting transmission modes provided by an exemplary embodiment of the present application.
  • the network device configures the second number of transmissions, which includes the initial transmission. That is, the maximum number of transmission attempts corresponding to the PUSCH resource is n+1, where n is a positive integer.
  • the terminal device performs the first retransmission. After the first retransmission fails, the terminal device performs the second retransmission until it has retransmitted n times and then switches to using the EDT resource pre-configured by the network device for transmission.
  • the third CE level is a CE level determined by the terminal device based on the RSRP measurement result and the RSRP threshold value configured by the network device; or, the third CE level is the CE level associated with the last transmission of the first information when the transmission of the first information fails; or, the third CE level is a CE level with a preset level added to the CE level associated with the last transmission of the first information when the transmission of the first information fails.
  • the terminal device obtains the signal quality of the CRS by measuring the CRS, and the measurement result of the CRS is represented by RSRP.
  • the network device is configured with three RSRP thresholds: RSRP1, RSRP2, and RSRP3, where RSRP1>RSRP2>RSRP3.
  • RSRP ⁇ RSRP1 the terminal device corresponds to CE level 0; when RSRP2 ⁇ RSRP ⁇ RSRP1, the terminal device corresponds to CE level 1; when RSRP3 ⁇ RSRP ⁇ RSRP2, the terminal device corresponds to CE level 2; and when RSRP ⁇ RSRP3, the reference signal quality is too low to correspond to the CE level.
  • the CE level associated with the last transmission of the first information is level m
  • the third CE level is level m, where m is 0, 1, or 2. For example, if the CE level associated with the last transmission of the first information is level 1, then the third CE level is level 1.
  • the third CE level is a CE level that is one level higher than the CE level associated with the last time the first information was transmitted, for example, the CE level associated with the last time the first information was transmitted was level 1, and the third CE level was level 2; or, the third CE level is a CE level that is two levels higher than the CE level associated with the last time the first information was transmitted, with an upper limit of level 2, for example, the CE level associated with the last time the first information was transmitted was level 0, and the third CE level was level 2, or, the CE level associated with the last time the first information was transmitted was level 1, and the third CE level was level 2.
  • the third CE level is the CE level determined by the terminal device based on the RSRP measurement results and the RSRP threshold value configured by the network device, the third CE level is more in line with the scenario in which the terminal device is located and has higher accuracy; when the third CE level is the CE level associated with the last transmission of the first information, RSRP measurement is not required and the implementation is simple; when the third CE level is a CE level with a preset level added to the CE level associated with the last transmission of the first information, it is more reasonable and can find the appropriate CE level faster.
  • the transmission mode conversion methods of the first situation and the second situation can be used in combination, that is, when a first event occurs, the transmission mode of the first information is converted from using PUR transmission to using preconfigured first type of PUSCH resource transmission, and then when the number of times the terminal device transmits the first information reaches the first transmission number, the transmission mode of the first information is converted from using preconfigured first type of PUSCH resource transmission to using preconfigured second type of PUSCH resource transmission.
  • the transmission mode conversion methods of the first situation and the third situation can be used in combination, that is, when the number of times the terminal device transmits the first information reaches the first transmission number, the transmission mode of the first information is converted from using the preconfigured first type of PUSCH resource transmission to using the preconfigured second type of PUSCH resource transmission; in the event of a second event, the transmission mode of the first information is converted from using the preconfigured second type of PUSCH resource transmission to using EDT resources transmission.
  • the transmission mode conversion methods of the second and third situations can be used in combination, that is, when the first event occurs, the transmission mode of the first information is converted from using PUR transmission to using pre-configured PUSCH resources for transmission, and then when the second event occurs, the transmission mode of the first information is converted from using pre-configured PUSCH resources for transmission to using EDT resources for transmission.
  • the method provided in this embodiment receives the first information transmitted by the first uplink transmission mode; receives the first information transmitted by the second uplink transmission mode; wherein the second uplink transmission mode is a terminal device in an idle state or an inactive state that satisfies the first condition.
  • the uplink transmission mode determined in the case of the first uplink transmission mode or the second uplink transmission mode includes: using pre-configured PUSCH resources for transmission, so that when the first information fails to be transmitted, different uplink transmission modes are converted, so that the network device can receive the first information, thereby improving the transmission possibility of the terminal device in the idle state or inactive state, and increasing the success rate of uplink transmission in the idle state or inactive state.
  • the embodiment corresponding to FIG. 5 and the embodiment corresponding to FIG. 10 may be implemented separately or in combination, and this application does not limit this.
  • FIG14 is a block diagram of a transmission mode conversion device provided by an exemplary embodiment of the present application.
  • the device 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 device includes:
  • the conversion module 1410 is configured to convert the transmission mode of the first information from the first uplink transmission mode to the second uplink transmission mode when the first condition is met; wherein the first uplink transmission mode or the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • transmission may be understood as at least one of direct transmission, direct transmission of message 3, transmission without scheduling, transmission without message 1, transmission without RAR, transmission without sending message 1, and transmission without receiving RAR.
  • Message 1 refers to message 1 during a random access procedure
  • RAR refers to message 2 during a random access procedure.
  • the use of preconfigured PUSCH resource transmission can be understood as: using at least one of contention-based PUSCH resource transmission, using message 3 to directly transmit resource transmission, using PUSCH resource transmission without message 1, and using PUSCH resource transmission without RAR.
  • the first condition can be understood as at least one of a conversion condition, a handover condition, a transformation condition, and a fallback condition.
  • the reliability of the second uplink transmission mode is higher than the reliability of the first uplink transmission mode.
  • the uplink resources used by the second uplink transmission mode are better than or more than the uplink resources used by the first uplink transmission mode.
  • the first uplink transmission mode and the second uplink transmission mode are both direct transmission modes in which the transmission mode conversion device is in an idle state or an inactive state and does not require Message 1 and/or RAR.
  • the PUSCH resource is a contention-based PUSCH resource.
  • the PUSCH resource is a resource used to transmit message 3 (msg3); for another example, in a message 3 direct transmission mechanism, the PUSCH resource is a resource used to directly transmit message 3.
  • the first information includes first signaling; or, the first information includes first signaling and first data.
  • the first signaling includes at least one of the following: an RRC connection establishment request (RRCSetupRequest), an RRC connection resumption request (RRCConnectionResumeRequest), and an early data request (EarlyDataRequest).
  • RRCSetupRequest an RRC connection establishment request
  • RRCConnectionResumeRequest an RRC connection resumption request
  • EarlyDataRequest an early data request
  • the RRC connection establishment request is used to request the establishment of an RRC connection.
  • the transmission mode conversion device sends the RRC connection establishment request to the network device to initiate the connection process; the RRC connection recovery request is used to request the recovery of the RRC connection.
  • the transmission mode conversion device is in a non-connected state and hopes to restore the connection, the request is sent to the network device; the early data request is used to request partial data transmission before the RRC connection is established, so as to improve the connection speed and optimize the transmission performance.
  • the first uplink transmission mode and the second uplink transmission mode include at least one of the following three situations:
  • the first uplink transmission mode includes: using a pre-configured first type of PUSCH resource for transmission;
  • the second uplink transmission mode includes: using a pre-configured second type of PUSCH resource for transmission.
  • the first uplink transmission mode includes: using PUR for transmission; the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • the third scenario the first uplink transmission mode includes: using pre-configured PUSCH resources for transmission; the second uplink transmission mode includes: using EDT resources for transmission.
  • PUSCH resources are resources configured by a network device.
  • the first uplink transmission mode includes: using a preconfigured first type of PUSCH resource for transmission;
  • the second uplink transmission mode includes: using a preconfigured second type of PUSCH resource for transmission.
  • the first condition includes: the number of times the transmission mode conversion device transmits the first information reaches a first transmission number, and the first transmission number is the maximum number of transmission attempts corresponding to the first type of PUSCH resources.
  • the transmission mode of the first information is converted from using the preconfigured first type of PUSCH resources to using the preconfigured second type of PUSCH resources.
  • the first transmission number is configured by the network device.
  • Configuring the first transmission number through a network device can support a variety of configuration methods, thereby performing configuration according to actual needs.
  • the maximum number of transmission attempts includes the initial transmission. For example, if the initial transmission fails and the maximum number of transmission attempts is four, then a maximum of three retransmissions are allowed. In this embodiment of the present application, the maximum number of transmission attempts includes the initial transmission as an example for illustration.
  • the maximum number of transmission attempts does not include the initial transmission. For example, if the initial transmission fails and the maximum number of transmission attempts is four, then a maximum of four retransmissions are allowed. In this case, the maximum number of transmission attempts can be understood as the maximum number of retransmission attempts.
  • the first repetition number is smaller than the second repetition number
  • the first repetition number is the repetition number corresponding to the first type of PUSCH resources
  • the second repetition number is the repetition number corresponding to the second type of PUSCH resources.
  • a transmission or retransmission includes multiple repetitions of the same information.
  • the number of repetitions refers to the number of times the same information is repeated in a transmission or retransmission. For example, if the string to be transmitted is 0110 and the number of repetitions is 3, the transmitted string is 011001100110.
  • the channel quality of the transmission mode conversion device may continue to deteriorate due to various reasons, such as the deterioration of channel quality caused by satellite provision in non-terrestrial network (NTN) scenarios, using PUSCH resources corresponding to more repetitions for transmission can improve the success rate of transmission.
  • NTN non-terrestrial network
  • the transmission module 1420 is configured to retransmit the first information when transmission of the first information fails using a preconfigured first type of PUSCH resource.
  • Possible situations in which the transmission of the first information fails include at least one of the following: the first timer times out; the network device indicates that the transmission of the first information fails or is terminated; the transmission of the first information is interfered with by other devices; multiple devices attempt to transmit the first information simultaneously.
  • the first timer is a timer started by the transmission mode conversion device when using the first type of PUSCH resource to transmit the first information, and the first timer is used to limit the time for transmitting the first information.
  • the transmission module 1420 is used to retransmit the first information when the first timer expires.
  • the first timer limits the time for transmitting the first information to 100 milliseconds, and the moment when the transmission mode conversion device starts transmitting the first information using the first type of PUSCH resource is the starting moment.
  • the first timer exceeds 100 milliseconds, the first information is retransmitted.
  • the implementation is simple and the control is convenient.
  • the transmission module 1420 is further configured to, if the i-th retransmission fails, perform an (i+1)-th retransmission until the number of transmissions of the first information reaches a first transmission number;
  • the first number of transmission attempts is the maximum number of transmission attempts corresponding to the first type of PUSCH resources, and i is a positive integer.
  • the transmission success rate of the first information is improved.
  • the first type of PUSCH resources are associated with a first CE level
  • the second type of PUSCH resources are associated with a second CE level.
  • CE ratings There are three CE ratings: Level 0, Level 1, and Level 2, corresponding to resistance to signal attenuation of 144dB, 154dB, and 164dB, respectively.
  • the number of message repetitions between network equipment and the transmission mode converter is determined by the CE rating of the transmission mode converter.
  • the first CE level is a CE level determined by the transmission mode conversion device based on a reference signal receiving power (RSRP) measurement result and an RSRP threshold value configured by the network device; or, the first CE level is a CE level specified by the network device when the RRC connection is released.
  • RSRP reference signal receiving power
  • the transmission mode conversion device obtains the signal quality of the cell-specific reference signal (CRS) by measuring the CRS, and the measurement result of the CRS is represented by RSRP.
  • CRS cell-specific reference signal
  • the network device is configured with three RSRP thresholds: RSRP1, RSRP2, and RSRP3, where RSRP1 > RSRP2 > RSRP3.
  • RSRP ⁇ RSRP1 the CE level corresponding to the transmission mode conversion device is 0; when RSRP2 ⁇ RSRP ⁇ RSRP1, the CE level corresponding to the transmission mode conversion device is 1; when RSRP3 ⁇ RSRP ⁇ RSRP2, the CE level corresponding to the transmission mode conversion device is 2; and when RSRP ⁇ RSRP3, the reference signal quality is too low to correspond to the CE level.
  • the first CE level is the CE level determined by the transmission mode conversion device based on the RSRP measurement results and the RSRP threshold value configured by the network device
  • the first CE level is more in line with the scenario in which the transmission mode conversion device is located and has higher accuracy
  • the CE level can be specified according to actual needs without the need for RSRP measurement.
  • the second CE level is a CE level obtained by increasing a preset level from the first CE level; or, the second CE level is a CE level determined by the transmission mode conversion device based on the RSRP measurement result and the RSRP threshold value configured by the network device.
  • the second CE level is a CE level increased by one level from the first CE level, for example, the first CE level is level 1 and the second CE level is level 2; or, the second CE level is a CE level increased by two levels from the first CE level, with an upper limit of level 2, for example, the first CE level is level 0 and the second CE level is level 2, or, the first CE level is level 1 and the second CE level is level 2.
  • the second CE level is a transmission mode conversion device based on the current RSRP measurement result and the network
  • the CE level is determined by the RSRP threshold value configured on the network device. The determination method is described above and will not be repeated here.
  • the second CE level is a CE level obtained by adding a preset level to the first CE level, RSRP measurement is not required and the implementation is simple; when the second CE level is a CE level determined by the transmission mode conversion device based on the RSRP measurement results and the RSRP threshold value configured by the network device, the second CE level is more in line with the scenario in which the transmission mode conversion device is located and has higher accuracy.
  • the first uplink transmission mode includes: using PUR for transmission;
  • the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • the first condition includes: occurrence of a first event.
  • the first event includes at least one of the following: the second timer times out; the network device indicates that the PUR transmission fails; the network device indicates that the PUR transmission is terminated; wherein the second timer is used to limit the time of PUR transmission.
  • the network device indicates the failure or termination of PUR transmission by configuring indication signaling, and the indication signaling includes at least one of the physical downlink control channel (PDCCH), the medium access control control element (MAC CE), and RRC signaling.
  • the indication signaling includes at least one of the physical downlink control channel (PDCCH), the medium access control control element (MAC CE), and RRC signaling.
  • the transmission mode is changed.
  • the first event is the timeout of the second timer
  • the implementation is simple and easy to control.
  • the first event is the network device indicating that the PUR transmission has failed or terminated
  • the conversion is performed according to the indication signaling. The operation is accurate and there is no need to introduce other mechanisms.
  • the preconfigured PUSCH resources are associated with the fourth CE level.
  • the fourth CE level is the CE level determined by the transmission mode conversion device according to the RSRP measurement result and the RSRP threshold value configured by the network device.
  • the specific implementation details refer to the embodiment of the first case and are not repeated here.
  • the second timer is a timer started by the transmission mode conversion device when using PUR transmission, and the second timer is used to limit the time of PUR transmission.
  • the operation principle of the second timer is the same as that of the first timer and will not be repeated here.
  • PUR transmission failure may be due to deteriorating channel quality, and the PUR configured by the network device cannot adapt to the deteriorating channel quality. In this case, it falls back to using PUSCH resources for transmission (for example, direct transmission of message 3).
  • the PUSCH resource transmission mechanism can select PUSCH resources that adapt to the channel quality, improving the transmission success rate.
  • the first uplink transmission mode includes: using pre-configured PUSCH resources for transmission; the second uplink transmission mode includes: using EDT resources for transmission.
  • the first condition includes: a second event occurs.
  • the second event includes at least one of the following: a third timer times out; the network device indicates that the transmission of the first information fails; the network device indicates that the transmission of the first information is terminated; the number of times the first information is transmitted reaches a second transmission number;
  • the third timer is used to limit the time for transmitting the first information, and the second number of transmission attempts is the maximum number of transmission attempts corresponding to the PUSCH resource.
  • the transmission mode is changed.
  • the second event is the timeout of the third timer
  • the implementation is simple and easy to control.
  • the second event is the network device indicating that the transmission of the first information has failed or terminated
  • the conversion is performed according to the indication signaling, the operation is accurate, and there is no need to introduce other mechanisms.
  • the second event is that the number of times the first information is transmitted reaches the second number of transmissions, it is easy to monitor, and when the number of times the first information is transmitted has reached the maximum number of transmission attempts, the first information is likely to fail to be transmitted, which meets the timing for changing the transmission mode.
  • the second transmission number is configured by the network device.
  • Configuring the second transmission number through a network device can support a variety of configuration methods, thereby performing configuration according to actual needs.
  • the third timer is a timer started by the transmission mode switching apparatus when transmitting the first information using a preconfigured PUSCH resource.
  • the third timer is used to limit the time for transmitting the first information.
  • the operation principle of the third timer is the same as that of the first timer and is not further described here.
  • EDT resources are associated with the third CE level.
  • the third CE level is a CE level determined by the transmission mode conversion device based on the RSRP measurement result and the RSRP threshold value configured by the network device; or, the third CE level is the CE level associated with the last transmission of the first information when the transmission of the first information fails; or, the third CE level is a CE level with a preset level added to the CE level associated with the last transmission of the first information when the transmission of the first information fails.
  • the transmission mode conversion device obtains the signal quality of the CRS by measuring the CRS, and the measurement result of the CRS is represented by RSRP.
  • the network device is configured with three RSRP thresholds: RSRP1, RSRP2, and RSRP3, where RSRP1 > RSRP2 > RSRP3.
  • RSRP ⁇ RSRP1 the CE level corresponding to the transmission mode conversion device is 0; when RSRP2 ⁇ RSRP ⁇ RSRP1, the CE level corresponding to the transmission mode conversion device is 1; when RSRP3 ⁇ RSRP ⁇ RSRP2, the CE level corresponding to the transmission mode conversion device is 2; and when RSRP ⁇ RSRP3, the reference signal quality is too low to correspond to the CE level.
  • the CE associated with the last transmission of the first information when the transmission of the first information fails, the CE associated with the last transmission of the first information
  • the level is level m
  • the third CE level is level m, where m is 0, 1, or 2.
  • the CE level associated with the last transmission of the first information is level 1
  • the third CE level is level 1.
  • the third CE level in the event of failure in transmitting the first information, is a CE level increased by one level to the CE level associated with the last transmission of the first information, for example, the CE level associated with the last transmission of the first information was level 1, and the third CE level was level 2; or, the third CE level is a CE level increased by two levels to the CE level associated with the last transmission of the first information, with an upper limit of level 2, for example, the CE level associated with the last transmission of the first information was level 0, and the third CE level was level 2, or, the CE level associated with the last transmission of the first information was level 1, and the third CE level was level 2.
  • the third CE level is the CE level determined by the transmission mode conversion device based on the RSRP measurement results and the RSRP threshold value configured by the network device
  • the third CE level is more in line with the scenario in which the transmission mode conversion device is located and has higher accuracy
  • the third CE level is the CE level associated with the last transmission of the first information
  • RSRP measurement is not required and the implementation is simple
  • the third CE level is a CE level with a preset level added to the CE level associated with the last transmission of the first information, it is more reasonable and can find the appropriate CE level faster.
  • the failure of transmission using PUSCH resources may be due to incorrect PUSCH resource configuration. Since transmission using PUSCH resources (such as direct transmission of message 3) is not suitable for dynamic scheduling, PUSCH resources cannot be changed after the configuration error. After switching to transmission using EDT resources, dynamic scheduling during the random access process can be used to improve the transmission situation and increase the transmission success rate.
  • the first situation and the second situation can be used in combination, that is, when a first event occurs, the transmission mode of the first information is converted from using PUR transmission to using preconfigured first type of PUSCH resource transmission, and then when the number of times the transmission mode conversion device transmits the first information reaches the first number of transmissions, the transmission mode of the first information is converted from using preconfigured first type of PUSCH resource transmission to using preconfigured second type of PUSCH resource transmission.
  • the first situation and the third situation can be used in combination, that is, when the number of times the transmission mode conversion device transmits the first information reaches the first transmission number, the transmission mode of the first information is converted from using the preconfigured first type of PUSCH resource transmission to using the preconfigured second type of PUSCH resource transmission; when the second event occurs, the transmission mode of the first information is converted from using the preconfigured second type of PUSCH resource transmission to using EDT resources transmission.
  • the second situation and the third situation can be used in combination, that is, when the first event occurs, the transmission mode of the first information is converted from using PUR transmission to using pre-configured PUSCH resources for transmission, and then when the second event occurs, the transmission mode of the first information is converted from using pre-configured PUSCH resources for transmission to using EDT resources for transmission.
  • the transmission module 1420 can be divided into multiple transmission modules, such as a first transmission module and a second transmission module.
  • the first transmission module is configured to retransmit the first information if the transmission of the first information using the preconfigured first type of PUSCH resources fails
  • the second transmission module is configured to perform the (i+1)th retransmission if the i-th retransmission fails, until the number of transmissions of the first information reaches the first number of transmissions; or the first transmission module is configured to perform the (i+1)th retransmission if the i-th retransmission fails, until the number of transmissions of the first information reaches the first number of transmissions
  • the second transmission module is configured to retransmit the first information if the transmission of the first information using the preconfigured first type of PUSCH resources fails.
  • This embodiment does not limit the functions of the different transmission modules.
  • This embodiment is described by taking one conversion module 1410 and one transmission module 1420 as an example, and the number of the conversion modules 1410 and the transmission modules 1420 is not limited.
  • step 510 For an introduction to the functions of the conversion module 1410 , please refer to the content of step 510 in the embodiment of FIG. 5 .
  • FIG15 is a block diagram of an information receiving 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 receiving module 1510 is configured to receive first information transmitted using a first uplink transmission mode; and receive first information transmitted using a second uplink transmission mode.
  • the second uplink transmission mode is an uplink transmission mode determined by a terminal device in an idle state or an inactive state when the first condition is met.
  • the first uplink transmission mode or the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • transmission may be understood as at least one of direct transmission, direct transmission of message 3, transmission without scheduling, transmission without message 1, transmission without RAR, transmission without sending message 1, and transmission without receiving RAR.
  • Message 1 refers to message 1 during a random access procedure
  • RAR refers to message 2 during a random access procedure.
  • the first information includes first signaling; or, the first information includes first signaling and first data.
  • the first signaling includes at least one of the following: an RRC connection establishment request (RRCSetupRequest), an RRC connection resumption request (RRCConnectionResumeRequest), and an early data request (EarlyDataRequest).
  • RRCSetupRequest an RRC connection establishment request
  • RRCConnectionResumeRequest an RRC connection resumption request
  • EarlyDataRequest an early data request
  • the RRC connection establishment request is used to request the establishment of an RRC connection.
  • the terminal device sends the RRC connection establishment request to the information receiving device to initiate the connection process;
  • the RRC connection recovery request is used to request the restoration of the RRC connection.
  • the request is sent to the information receiving device;
  • the early data request is used to request partial data transmission before the RRC connection is established, so as to improve the connection speed and optimize the transmission performance.
  • the use of preconfigured PUSCH resource transmission can be understood as: using at least one of contention-based PUSCH resource transmission, using message 3 to directly transmit resource transmission, using PUSCH resource transmission without message 1, and using PUSCH resource transmission without RAR.
  • the first condition can be understood as at least one of a conversion condition, a handover condition, a transformation condition, and a fallback condition.
  • the reliability of the second uplink transmission mode is higher than the reliability of the first uplink transmission mode.
  • the uplink resources used by the second uplink transmission mode are better than or more than the uplink resources used by the first uplink transmission mode.
  • the first uplink transmission mode and the second uplink transmission mode are both direct transmission modes when the terminal device is in an idle state or an inactive state, without the need for message 1 and/or RAR.
  • the PUSCH resource is a contention-based PUSCH resource.
  • the PUSCH resource is a resource used to transmit message 3 (msg3); for another example, in a message 3 direct transmission mechanism, the PUSCH resource is a resource used to directly transmit message 3.
  • the first uplink transmission mode and the second uplink transmission mode include at least one of the following three situations:
  • the first uplink transmission mode includes: using a pre-configured first type of PUSCH resource for transmission;
  • the second uplink transmission mode includes: using a pre-configured second type of PUSCH resource for transmission.
  • the first uplink transmission mode includes: using PUR for transmission; the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • the third scenario the first uplink transmission mode includes: using pre-configured PUSCH resources for transmission; the second uplink transmission mode includes: using EDT resources for transmission.
  • PUSCH resources are resources configured by the information receiving apparatus.
  • the first uplink transmission mode includes: using a preconfigured first type of PUSCH resource for transmission;
  • the second uplink transmission mode includes: using a preconfigured second type of PUSCH resource for transmission.
  • the first condition includes: the number of times the terminal device transmits the first information reaches a first transmission number, and the first transmission number is the maximum number of transmission attempts corresponding to the first type of PUSCH resource.
  • the transmission mode of the first information is converted from using the preconfigured first type of PUSCH resource transmission to using the preconfigured second type of PUSCH resource transmission.
  • the maximum number of transmission attempts includes the initial transmission. For example, if the initial transmission fails and the maximum number of transmission attempts is four, then a maximum of three retransmissions are allowed. In this embodiment of the present application, the maximum number of transmission attempts includes the initial transmission as an example for illustration.
  • the maximum number of transmission attempts does not include the initial transmission. For example, if the initial transmission fails and the maximum number of transmission attempts is four, then a maximum of four retransmissions are allowed. In this case, the maximum number of transmission attempts can be understood as the maximum number of retransmission attempts.
  • the first repetition number is smaller than the second repetition number
  • the first repetition number is the repetition number corresponding to the first type of PUSCH resources
  • the second repetition number is the repetition number corresponding to the second type of PUSCH resources.
  • a transmission or retransmission includes multiple repetitions of the same information.
  • the number of repetitions refers to the number of times the same information is repeated in a transmission or retransmission. For example, if the string to be transmitted is 0110 and the number of repetitions is 3, the transmitted string is 011001100110.
  • NTN non-terrestrial network
  • the configuration module 1520 is used to configure a first number of transmission times, where the first number of transmission times is a maximum number of transmission attempts corresponding to the first type of PUSCH resources.
  • Configuring the first number of transmission times through the information receiving device can support a variety of configuration methods, so that configuration can be performed according to actual needs.
  • the first type of PUSCH resources are associated with a first CE level
  • the second type of PUSCH resources are associated with a second CE level.
  • CE ratings There are three CE ratings: Level 0, Level 1, and Level 2, corresponding to resistance to signal attenuation of 144dB, 154dB, and 164dB, respectively.
  • the number of message repetitions between the receiving device and the terminal device will be determined based on the terminal device's CE rating.
  • the first CE level is configured by the terminal device according to the RSRP measurement result and the information receiving device.
  • the CE level is determined by the RSRP threshold value; or, the first CE level is the CE level specified by the information receiving device when the RRC connection is released.
  • the terminal device obtains the signal quality of the CRS by measuring the CRS, and the measurement result of the CRS is represented by RSRP.
  • the information receiving device is configured with three RSRP thresholds: RSRP1, RSRP2, and RSRP3, where RSRP1>RSRP2>RSRP3.
  • RSRP ⁇ RSRP1 the terminal device corresponds to a CE level of 0; when RSRP2 ⁇ RSRP ⁇ RSRP1, the terminal device corresponds to a CE level of 1; when RSRP3 ⁇ RSRP ⁇ RSRP2, the terminal device corresponds to a CE level of 2; and when RSRP ⁇ RSRP3, the reference signal quality is too low to correspond to the CE level.
  • the first CE level is the CE level determined by the terminal device based on the RSRP measurement results and the RSRP threshold value configured by the information receiving device
  • the first CE level is more in line with the scenario in which the terminal device is located and has higher accuracy
  • the CE level can be specified according to actual needs without the need for RSRP measurement.
  • the second CE level is a CE level obtained by increasing a preset level from the first CE level; or, the second CE level is a CE level determined by the terminal device based on the RSRP measurement result and the RSRP threshold value configured by the information receiving device.
  • the second CE level is a CE level increased by one level from the first CE level, for example, the first CE level is level 1 and the second CE level is level 2; or, the second CE level is a CE level increased by two levels from the first CE level, with an upper limit of level 2, for example, the first CE level is level 0 and the second CE level is level 2, or, the first CE level is level 1 and the second CE level is level 2.
  • the second CE level is a CE level determined by the terminal device based on the current RSRP measurement result and the RSRP threshold value configured by the information receiving device.
  • the determination method is referred to above and will not be repeated here.
  • the second CE level is a CE level obtained by adding a preset level to the first CE level
  • RSRP measurement is not required and the implementation is simple;
  • the second CE level is a CE level determined by the terminal device based on the RSRP measurement results and the RSRP threshold value configured by the information receiving device, the second CE level is more in line with the scenario in which the terminal device is located and has higher accuracy.
  • the first timer is a timer that is started when the terminal device uses the first type of PUSCH resource to transmit the first information, and the first timer is used to limit the time for transmitting the first information.
  • the implementation is simple and the control is convenient.
  • the first uplink transmission mode includes: using PUR for transmission;
  • the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • the first condition includes: occurrence of a first event.
  • the first event includes at least one of the following: the second timer times out; the information receiving device indicates that the PUR transmission fails; the information receiving device indicates that the PUR transmission is terminated; wherein the second timer is used to limit the time of PUR transmission.
  • the second timer is a timer started by the terminal device when using PUR transmission, and the second timer is used to limit the time of PUR transmission.
  • the operation principle of the second timer is the same as that of the first timer and will not be repeated here.
  • the configuration module 1520 is further used to configure a first indication signaling, where the first indication signaling is used to indicate that the PUR transmission fails or is terminated.
  • the first indication signaling includes at least one of PDCCH, MAC CE, and RRC signaling.
  • Figure 11 shows a schematic diagram of a method for converting a transmission mode provided by an exemplary embodiment of the present application.
  • the information receiving device configures a first indication signaling, which is used to indicate that the PUR transmission fails or is terminated.
  • the first transmission field in the first indication signaling is used to indicate the failure or termination of PUR transmission.
  • the value of the first transmission field is 00, which is used to indicate the failure of PUR transmission; the value of the first transmission field is 01, which is used to indicate the termination of PUR transmission.
  • the configuration module 1520 is further used to configure a PUR, which is used by the terminal device to transmit the PUR. As shown in FIG11 , the information receiving device configures the PUR, and the terminal device uses the PUR for transmission.
  • the first uplink transmission mode includes: using pre-configured PUSCH resources for transmission; the second uplink transmission mode includes: using EDT resources for transmission.
  • the first condition includes: a second event occurs.
  • the second event includes at least one of the following: a third timer times out; an information receiving device indicates that transmission of the first information has failed; an information receiving device indicates that transmission of the first information has terminated; the number of times the first information has been transmitted reaches a second number of transmissions;
  • the third timer is used to limit the time for transmitting the first information, and the second number of transmission attempts is the maximum number of transmission attempts corresponding to the PUSCH resource.
  • the transmission mode is changed.
  • the second event is the timeout of the third timer
  • the implementation is simple and easy to control.
  • the second event is that the information receiving device indicates that the transmission of the first information has failed or terminated
  • the conversion is performed according to the indication signaling, the operation is accurate, and there is no need to introduce other mechanisms.
  • the second event is that the number of times the first information is transmitted reaches the second number of transmissions, it is easy to monitor, and when the number of times the first information is transmitted has reached the maximum number of transmission attempts, the first information is likely to fail to be transmitted, which meets the timing for changing the transmission mode.
  • the third timer is when the terminal device uses the preconfigured PUSCH resource to transmit the first information
  • the operating principle of the third timer is the same as that of the first timer, and will not be repeated here.
  • the configuration module 1520 is further used to configure a second indication signaling, where the second indication signaling is used to indicate failure or termination of transmission of the first information.
  • the second transmission field in the second indication signaling is used to indicate the failure or termination of transmission of the first information.
  • the value of the second transmission field is 00, which is used to indicate the failure of transmission of the first information
  • the value of the second transmission field is 01, which is used to indicate the termination of transmission of the first information.
  • Figure 12 shows a schematic diagram of a method for converting a transmission mode provided by an exemplary embodiment of the present application.
  • the information receiving device configures a second indication signaling, where the first indication signaling is used to indicate failure or termination of transmission of the first information.
  • the configuration module 1520 is further used to configure a second number of transmission times, where the second number of transmission times is the maximum number of transmission attempts corresponding to the PUSCH resources.
  • the configuration module 1520 is further used to configure EDT resources, and the EDT resources are related to the third CE level.
  • the third CE level is a CE level determined by the terminal device based on the RSRP measurement result and the RSRP threshold value configured by the information receiving device; or, the third CE level is the CE level associated with the last transmission of the first information when the transmission of the first information fails; or, the third CE level is a CE level with a preset level added to the CE level associated with the last transmission of the first information when the transmission of the first information fails.
  • the terminal device obtains the signal quality of the CRS by measuring the CRS, and the measurement result of the CRS is represented by RSRP.
  • the information receiving device is configured with three RSRP thresholds: RSRP1, RSRP2, and RSRP3, where RSRP1>RSRP2>RSRP3.
  • RSRP ⁇ RSRP1 the terminal device corresponds to a CE level of 0; when RSRP2 ⁇ RSRP ⁇ RSRP1, the terminal device corresponds to a CE level of 1; when RSRP3 ⁇ RSRP ⁇ RSRP2, the terminal device corresponds to a CE level of 2; and when RSRP ⁇ RSRP3, the reference signal quality is too low to correspond to the CE level.
  • the CE level associated with the last transmission of the first information is level m
  • the third CE level is also level m, where m is 0, 1, or 2.
  • the CE level associated with the last transmission of the first information is level 1
  • the third CE level is also level 1.
  • the third CE level in the event of failure in transmitting the first information, is a CE level increased by one level to the CE level associated with the last transmission of the first information, for example, the CE level associated with the last transmission of the first information was level 1, and the third CE level was level 2; or, the third CE level is a CE level increased by two levels to the CE level associated with the last transmission of the first information, with an upper limit of level 2, for example, the CE level associated with the last transmission of the first information was level 0, and the third CE level was level 2, or, the CE level associated with the last transmission of the first information was level 1, and the third CE level was level 2.
  • the third CE level is the CE level determined by the terminal device based on the RSRP measurement results and the RSRP threshold value configured by the information receiving device, the third CE level is more in line with the scenario in which the terminal device is located and has higher accuracy; when the third CE level is the CE level associated with the last transmission of the first information, RSRP measurement is not required and the implementation is simple; when the third CE level is a CE level with a preset level added to the CE level associated with the last transmission of the first information, it is more reasonable and can find the appropriate CE level faster.
  • the first situation and the second situation can be used in combination, that is, when a first event occurs, the transmission mode of the first information is converted from using PUR transmission to using a preconfigured first type of PUSCH resource transmission, and then when the number of times the terminal device transmits the first information reaches the first number of transmissions, the transmission mode of the first information is converted from using the preconfigured first type of PUSCH resource transmission to using the preconfigured second type of PUSCH resource transmission.
  • the first situation and the third situation can be used in combination, that is, when the number of times the terminal device transmits the first information reaches the first transmission number, the transmission mode of the first information is converted from using the preconfigured first type of PUSCH resource transmission to using the preconfigured second type of PUSCH resource transmission; when the second event occurs, the transmission mode of the first information is converted from using the preconfigured second type of PUSCH resource transmission to using EDT resources transmission.
  • the second situation and the third situation can be used in combination, that is, when the first event occurs, the transmission mode of the first information is converted from using PUR transmission to using pre-configured PUSCH resources for transmission, and then when the second event occurs, the transmission mode of the first information is converted from using pre-configured PUSCH resources for transmission to using EDT resources for transmission.
  • the configuration module 1520 can be divided into multiple configuration modules, such as a first configuration module, a second configuration module, a third configuration module, a fourth configuration module, a fifth configuration module, and a sixth configuration module.
  • the first configuration module is used to configure the first transmission number
  • the second configuration module is used to configure the first indication signaling
  • the third configuration module is used to configure the PUR
  • the fourth configuration module is used to configure the second transmission number
  • the fifth configuration module is used to configure the second indication signaling
  • the sixth configuration module is used to configure the EDT resource
  • the first configuration module is used to configure the first indication signaling
  • the second configuration module is used to configure the PUR
  • the third configuration module is used to configure the second transmission number
  • the fourth configuration module is used to configure the second indication signaling.
  • the fifth configuration module is used to configure EDT resources, and the sixth configuration module is used to configure the first transmission number; or the first configuration module is used to configure PUR, the second configuration module is used to configure the second transmission number, the third configuration module is used to configure the second indication signaling, the fourth configuration module is used to configure EDT resources, the fifth configuration module is used to configure the first transmission number, and the sixth configuration module is used to configure the first indication signaling.
  • This embodiment does not limit the functions of different configuration modules.
  • This embodiment is described by taking one receiving module 1510 and one configuring module 1520 as an example, and the number of the receiving modules 1510 and the configuring modules 1520 is not limited.
  • step 1010 and step 1020 for an introduction to the functions of the receiving module 1510 , please refer to the contents of step 1010 and step 1020 in the embodiment of FIG10 .
  • step 1020 For an introduction to the functions of the configuration module 1520 , please refer to the content of step 1020 in the embodiment of FIG10 .
  • Figure 16 shows a schematic diagram of the structure of a terminal device provided by an exemplary embodiment of the present application.
  • Terminal device 1600 may be used to execute the method steps performed by the terminal device in the above-described embodiments.
  • Terminal device 1600 may include a processor 1601, a transceiver 1602, and a memory 1603.
  • Processor 1601 may be used to control transmission and/or reception.
  • Transceiver 1602 may be used to implement transmission and/or reception functions, such as the functions of transmission module 1420 described above.
  • the processor 1601 includes one or more processing cores.
  • the processor 1601 executes various functional applications and information processing by running software programs and modules, such as for implementing the functions of the above-mentioned conversion module 1410.
  • the transceiver 1602 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 1603 may be connected to the processor 1601 and the transceiver 1602 .
  • the memory 1603 may be used to store a computer program executed by the processor, and the processor 1601 is used to execute the computer program to implement each step in the above method embodiment.
  • memory 1603 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 1601 is configured to convert the transmission mode of the first information from a first uplink transmission mode to a second uplink transmission mode when a first condition is met; wherein the first uplink transmission mode or the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • FIG 17 shows a schematic diagram of the structure of a network device provided by an exemplary embodiment of the present application.
  • Network device 1700 may be used to execute the method steps performed by the network device in the above-described embodiments.
  • Network device 1700 may include a processor 1701, a transceiver 1702, and a memory 1703.
  • Processor 1701 may be used to control transmission and/or reception.
  • Transceiver 1702 may be used to implement transmission and/or reception functions, such as implementing at least one of the functions of the aforementioned receiving module 1510 and configuration module 1520.
  • the processor 1701 includes one or more processing cores.
  • the processor 1701 executes various functional applications and information processing by running software programs and modules.
  • the transceiver 1702 may include a receiver and a transmitter.
  • the transceiver 1702 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 1702 may also include a wireless communication component, which may include a wireless communication chip and a radio frequency antenna.
  • the memory 1703 may be connected to the processor 1701 and the transceiver 1702 .
  • the memory 1703 may be used to store a computer program executed by the processor, and the processor 1701 is used to execute the computer program to implement each step performed by the network device in the above method embodiment.
  • memory 1703 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 transceiver 1702 is used to receive first information transmitted using a first uplink transmission mode; receive first information transmitted using a second uplink transmission mode; wherein the second uplink transmission mode is an uplink transmission mode determined by a terminal device in an idle state or an inactive state when a first condition is met, and the first uplink transmission mode or the second uplink transmission mode includes: using preconfigured PUSCH resources for transmission.
  • the embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and the computer program is used to be executed by a processor to implement the above-mentioned method for converting the transmission mode on the terminal device side, or to implement the above-mentioned method for receiving information on the network device side.
  • the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives) or optical disks, etc.
  • random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).
  • An embodiment of the present application also provides a chip, which includes a programmable logic circuit and/or program instructions.
  • the chip When the chip is running, it is used to implement the above-mentioned method of converting the transmission mode on the terminal device side, or to implement the above-mentioned method of receiving information on the network device side.
  • An embodiment of the present application also provides a computer program product, which includes a computer program, the computer program is stored in a computer-readable storage medium, and the processor reads and executes the computer program from the computer-readable storage medium to implement the above-mentioned method for converting the transmission mode on the terminal device side, or to implement the above-mentioned method for receiving information on the network device side.
  • 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.
  • predefined may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., including a terminal device and a network device), and the present application does not limit the specific implementation method.
  • predefined may refer to information defined in a protocol.
  • protocol may refer to a standard protocol in the communications field, for example, it may include an LTE protocol, a NR protocol, and related protocols used in future communications systems, and this application does not limit this.
  • 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande se rapporte au domaine technique des communications, et divulgue un procédé et un appareil de commutation de mode de transmission, un dispositif, un support et un produit-programme. Le procédé est mis en œuvre par un dispositif terminal dans un état de veille ou dans un état inactif, et comprend : lorsqu'une première condition est satisfaite, la commutation du mode de transmission de premières informations d'un premier mode de transmission en liaison montante à un second mode de transmission en liaison montante, le premier mode de transmission en liaison montante ou le second mode de transmission en liaison montante comprenant : l'utilisation d'une ressource PUSCH préconfigurée pour la transmission. Ainsi, dans le cas d'une défaillance de transmission des premières informations, le mode de transmission des premières informations est commuté vers un mode de transmission en liaison montante différent, de sorte que la possibilité de transmission dans un état de veille ou un état inactif est améliorée, augmentant le taux de réussite de la transmission en liaison montante dans l'état de veille ou l'état inactif.
PCT/CN2024/074703 2024-01-30 2024-01-30 Procédé et appareil de commutation de mode de transmission, dispositif, support et produit-programme Pending WO2025160747A1 (fr)

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CN116803159A (zh) * 2021-05-08 2023-09-22 Oppo广东移动通信有限公司 Cg资源维护方法、终端设备和网络设备

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WO2021093431A1 (fr) * 2019-11-15 2021-05-20 展讯通信（上海）有限公司 Procédé et appareil de transmission de données, procédé et appareil de réception de données pour un équipement utilisateur dans un état déconnecté, terminal et station de base
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