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WO2023133760A1 - Procédé et appareil de retransmission de liaison montante dans un processus de transmission de données de petite taille, dispositif et support - Google Patents

Procédé et appareil de retransmission de liaison montante dans un processus de transmission de données de petite taille, dispositif et support Download PDF

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Publication number
WO2023133760A1
WO2023133760A1 PCT/CN2022/071837 CN2022071837W WO2023133760A1 WO 2023133760 A1 WO2023133760 A1 WO 2023133760A1 CN 2022071837 W CN2022071837 W CN 2022071837W WO 2023133760 A1 WO2023133760 A1 WO 2023133760A1
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WIPO (PCT)
Prior art keywords
resource
ssb
harq process
message
target
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PCT/CN2022/071837
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English (en)
Chinese (zh)
Inventor
林雪
尤心
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to PCT/CN2022/071837 priority Critical patent/WO2023133760A1/fr
Priority to CN202280073277.XA priority patent/CN118176804A/zh
Publication of WO2023133760A1 publication Critical patent/WO2023133760A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of wireless communication, in particular to an uplink retransmission method, device, equipment and medium during small data transmission.
  • the terminal device In the RRC_INACTIVE state (that is, the inactive state), the terminal device supports data transmission through Small Data Transmission (SDT).
  • SDT Small Data Transmission
  • CG-SDT uplink small data transmission
  • CG type1 pre-configured resources
  • terminal devices can use pre-configured (Configured Grant, CG) resources to upload the first message.
  • Configured Grant CG resources
  • Embodiments of the present application provide an uplink retransmission method, device, device and medium during small data transmission. Described technical scheme is as follows:
  • a method for uplink retransmission during small data transmission comprising:
  • a target synchronization signal block (Synchronization Signal Block, SSB)
  • SSB Synchronization Signal Block
  • the first CG resource is a resource used by the first message in the process of retransmitting the small data.
  • an uplink retransmission device during small data transmission includes: a resource selection module;
  • the resource selection module is configured to select a target SSB during the small data transmission process, and use the CG resource associated with the target SSB as the first CG resource;
  • the first CG resource is a resource used by the first message in the process of retransmitting the small data.
  • a terminal device includes: a processor; wherein,
  • the processor is configured to select a target SSB during the small data transmission process, and use the CG resource associated with the target SSB as the first CG resource;
  • the first CG resource is a resource used by the first message in the process of retransmitting the small data.
  • a computer-readable storage medium wherein executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by a processor to realize the small data Uplink retransmission method during transmission.
  • a chip is provided, the chip includes programmable logic circuits and/or program instructions, and when the chip is run on a computer device, it is used to realize the small data described in the above aspect. Uplink retransmission method during transmission.
  • a computer program product is provided.
  • the computer program product runs on a processor of a computer device, the computer device executes the method for uplink retransmission during small data transmission described in the above aspect.
  • the terminal device For CG-SDT, if the terminal device supports multiple transmissions of the first message using CG resources, in order to retransmit the first message, the terminal device can reselect the target SSB and use the CG resources associated with the target SSB as the first The CG resource is used to retransmit the first message by using the first CG resource, so as to ensure the success rate of the network device side correctly receiving the first message.
  • FIG. 1 is a flow chart of uplink advance data transmission provided by an exemplary embodiment of the present application
  • FIG. 2 is a flow chart of pre-configured uplink resource transmission provided by an exemplary embodiment of the present application
  • Fig. 3 is a block diagram of a communication system provided by an exemplary embodiment of the present application.
  • FIG. 4 is a flow chart of an uplink retransmission method during small data transmission provided by an exemplary embodiment of the present application
  • FIG. 5 is a flow chart of an uplink retransmission method during small data transmission provided by an exemplary embodiment of the present application
  • FIG. 6 is a schematic diagram of an uplink retransmission method during small data transmission provided by an exemplary embodiment of the present application
  • FIG. 7 is a flowchart of an uplink retransmission method during small data transmission provided by an exemplary embodiment of the present application.
  • FIG. 8 is a schematic diagram of an uplink retransmission method during small data transmission provided by an exemplary embodiment of the present application.
  • FIG. 9 is a schematic diagram of an uplink retransmission method during small data transmission provided by an exemplary embodiment of the present application.
  • FIG. 10 is a structural block diagram of an uplink retransmission device during small data transmission provided by an exemplary embodiment of the present application.
  • Fig. 11 is a schematic structural diagram of a terminal device provided by an exemplary embodiment of the present application.
  • the EDT process is introduced, which can be understood as a small data transmission process.
  • the terminal device may always remain in an idle state (RRC_IDLE) or a suspended state (RRC_SUSPEND) or an inactive state (RRC_INACTIVE) to complete the transmission of uplink and/or downlink small data packets.
  • RRC_IDLE idle state
  • RRC_SUSPEND suspended state
  • RRC_INACTIVE inactive state
  • the network will configure a maximum transmission block threshold (TB size) allowed by the current network on the System Information Block 2 (SIB2).
  • SIB2 System Information Block 2
  • the terminal device judges the amount of data to be transmitted. If it is smaller than the broadcast The maximum TB size, the terminal device can initiate EDT transmission; otherwise, the terminal device uses the normal connection establishment process and enters the connection state to transmit data.
  • the base station can directly submit the uplink data to the For the core network, the specific UP-EDT process is shown in Figure 1.
  • NB-IoT Narrow Band Internet of Things
  • eMTC enhanced Machine Type Communication
  • a method of using PUR for data transmission in the RRC_IDLE state is introduced.
  • the PUR is only valid in the currently configured cell, that is, when the terminal device detects a cell change and initiates random access in the new cell, the terminal device needs to release the PUR configured in the original cell.
  • the PUR transmission process is similar to LTE UP-EDT, except that the process of sending a random access preamble to obtain TA and uplink grant (UL grant) is omitted.
  • the specific air interface process of PUR transmission is shown in Figure 2.
  • RRC_IDLE inactive state
  • RRC_INACTIVE active state
  • RRC_CONNECTED connected state
  • the RRC_INACTIVE state is a new state introduced by the 5G system from the perspective of energy saving.
  • the radio bearer and all radio resources will be released, but the UE access context is reserved on the terminal equipment side and the base station side to quickly restore RRC connection, the network usually keeps terminal devices with infrequent data transmission in the RRC_INACTIVE state.
  • R17 set up a project to carry out research on small data transmission under RRC_INACTIVE.
  • the project goals mainly have two directions: small data transmission based on random access (two-step/four-step) (ie RA-SDT) and based on pre-configured resources (such as CG type1) small data transmission (i.e. CG-SDT).
  • the terminal device uses CG resources to transmit the first uplink, and the first uplink contains RRC messages, such as RRC resume request (RRCRRCResumeRequest); in order to improve the reliability of the first uplink transmission, according to the discussion of the relevant standard meeting, for the first Uplink can support more than one transmission process, and the retransmission needs to occur on resources that have the same Hybrid Automatic Repeat reQuest (HARQ) process as the initial transmission.
  • RRC messages such as RRC resume request (RRCRRCResumeRequest)
  • HARQ Hybrid Automatic Repeat reQuest
  • the terminal device when the terminal device supports multiple transmissions of the first message using CG resources, in order to retransmit the first message, the terminal device can reselect the target SSB and set the target SSB
  • the associated CG resource is used as the first CG resource, and the first CG resource is used to retransmit the first message, so as to ensure the success rate of the network device side correctly receiving the first message.
  • FIG. 3 shows a block diagram of a communication system provided by an exemplary embodiment of the present application.
  • the communication system may include: an access network 12 and a terminal device 14 .
  • the access network 12 includes several network devices 120 .
  • the network device 120 may be a base station, and the base station is a device deployed in an access network to provide a terminal device with a wireless communication function.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points and so on.
  • the names of devices with base station functions may be different. For example, in LTE systems, they are called eNodeB or eNB; in 5G NR-U systems, they are called gNodeB or gNB. .
  • the description "base station" may change.
  • the above-mentioned devices that provide the wireless communication function for the terminal device 14 are collectively referred to as network devices.
  • the terminal device 14 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment, mobile stations (Mobile Station, MS) , terminal device (terminal device) and so on.
  • the network device 120 and the terminal device 14 communicate with each other through a certain air interface technology, such as a Uu interface.
  • the terminal device 14 supports performing a small data transmission process in an inactive state.
  • 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
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to Everything
  • Fig. 4 shows a flowchart of an uplink retransmission method during small data transmission provided by an exemplary embodiment of the present application.
  • the method may be applied to a terminal device in a communication system as shown in FIG. 3, and the method may include the following step 410:
  • Step 410 During the small data transmission process, select the target SSB, and use the CG resource associated with the target SSB as the first CG resource.
  • the first CG resource is the resource used by the first message in the process of retransmitting the small data.
  • Small Data Transmission is a data transmission method configured for terminal equipment in an inactive state.
  • the small data transmission process does not require an RRC connection to be established between the terminal device and the network device.
  • the data transmission needs to return to the inactive state , the power consumption of the terminal equipment is relatively large.
  • the terminal device can avoid switching the connection state, thereby reducing the power consumption of the terminal device.
  • the small data transmission process includes: a CG resource-based small data transmission (ie, CG-SDT) process; or a random access-based small data transmission process (ie, RA-SDT) process.
  • CG-SDT CG resource-based small data transmission
  • RA-SDT random access-based small data transmission process
  • the small data transmission process is a CG-SDT process, and at this time, the terminal device uses the CG resources pre-configured by the network device to perform data transmission.
  • the terminal device may retransmit the first message.
  • the terminal device reselects the SSB, the reselected SSB is the target SSB, and uses the CG resource associated with the target SSB as the first CG resource, and uses the first CG resource to transmit the first message. retransmission.
  • the target SSB is the same as the first SSB selected when the first message was transmitted last time; or, the target SSB is different from the first SSB selected when the first message was transmitted last time.
  • the HARQ process corresponding to the first CG resource is the first HARQ process
  • the first HARQ process is the HARQ process corresponding to the CG resource that initially transmits the first message. That is, the retransmission of the first message needs to occur on the CG resource that has the same HARQ process as the initial transmission of the first message.
  • the terminal device can reselect the target for retransmission of the first message.
  • the SSB uses the CG resource associated with the target SSB as the first CG resource, and uses the first CG resource to retransmit the first message, so as to ensure the success rate of the network device side correctly receiving the first message.
  • the terminal device selects the target SSB in the SSB set.
  • Fig. 5 shows a flowchart of an uplink retransmission method during small data transmission provided by an exemplary embodiment of the present application.
  • the method may be applied to a terminal device in a communication system as shown in FIG. 3 , and the method may include the following steps 510 to 520:
  • Step 510 During the small data transmission process, if the second condition is met, trigger selection of the first CG resource, the second condition includes: the first timer expires.
  • the first CG resource is the resource used by the first message in the process of retransmitting the small data.
  • the first timer is used to control the timing when the terminal device reselects the CG resource to retransmit the first message.
  • the terminal device when the first timer expires, the terminal device immediately selects retransmission resources for the first message.
  • the timing for starting the first timer includes at least one of the following:
  • the second CG resource is the CG resource used for the last transmission of the first message.
  • the first timer is started every time the transmission of the first message is completed, and the CG resource used for retransmitting the first message is selected after the first timer expires.
  • the second CG resource is the CG resource used for the last transmission of the first message.
  • the first timer is started, and after the first timer expires, the CG resource used for retransmitting the first message is selected again, so as to achieve The selection of the CG resource for retransmitting the first message is performed periodically within a period of time.
  • the first timer can be regarded as a timer for controlling the periodic reselection of CG resources by the terminal device.
  • the terminal device when the first timer expires and the terminal device needs to reselect the CG resource, if the terminal device fails to select the target SSB, and the terminal device chooses to skip the current retransmission opportunity of the first message, at this time point Restart the first timer.
  • Step 520 Select a target SSB satisfying the first condition from the SSB set, and use the CG resource associated with the target SSB and whose HARQ process is the first HARQ process as the first CG resource.
  • the first HARQ process is a HARQ process corresponding to the CG resource that initially transmits the first message.
  • the SSB set is a set including several different SSBs. It can be understood that the SSB set includes all SSBs.
  • the terminal device selects a target SSB satisfying the first condition from all SSBs, and uses a CG resource associated with the target SSB and whose HARQ process is the first HARQ process as the first CG resource.
  • the terminal device randomly selects an SSB satisfying the first condition as the target SSB; or, each SSB corresponds to a priority, and the terminal device satisfies the first condition Among the multiple SSBs of a condition, an SSB with the highest priority is selected as the target SSB, and the method for determining the priority of the SSB is not limited in this embodiment.
  • the first condition is a condition set for screening out SSBs with better signal quality.
  • the first condition includes: a reference signal received power (Reference Signal Receiving Power, RSRP) measurement result is not less than a first RSRP threshold. That is, the terminal device selects a target SSB whose RSRP measurement result is not less than the first RSRP threshold in the SSB set.
  • RSRP Reference Signal Receiving Power
  • the first RSRP threshold is predefined in the standard, or configured to the terminal device by the network device.
  • the terminal device will also perform the following steps:
  • the first SSB is the SSB selected when the first message was transmitted last time
  • the terminal device may reselect an SSB as the target SSB, and use the CG resource associated with the target SSB and whose HARQ process is the first HARQ process as the first
  • the CG resource uses the first CG resource to retransmit the first message, or does not perform SSB selection and subsequent CG resource selection, and considers that the current retransmission opportunity of the first message is skipped.
  • the terminal device when the terminal device supports multiple transmissions of the first message using CG resources, in order to retransmit the first message, the terminal device can retransmit the first message in the SSB Select the target SSB in the set, and use the CG resource associated with the target SSB and the HARQ process as the first HARQ process as the first CG resource, and use the first CG resource to retransmit the first message, thereby ensuring that the network device side correctly receives the first message.
  • the success rate of a message when the terminal device supports multiple transmissions of the first message using CG resources.
  • the terminal device can reselect an SSB as the target SSB to ensure the execution of the retransmission of the first message, or directly skip The retransmission opportunity of the current first message is used to save resource overhead.
  • FIG. 5 the technical solution shown in FIG. 5 will be exemplarily described in conjunction with FIG. 6 .
  • the terminal equipment in the RRC_INACTIVE state triggers the CG-SDT process when the third condition is met.
  • the third condition includes at least:
  • All the data to be transmitted belongs to the radio bearer (Radio Bearer, RB) that is allowed to trigger SDT, and the amount of data to be transmitted is not greater than the data amount threshold configured by the network.
  • Radio Bearer Radio Bearer
  • the RSRP measurement result is not less than the RSRP threshold configured by the network.
  • Timing Advance is valid, that is, the Timing Advance Timer (Timing Advance Timer, TAT) is running and/or the variation of RSRP does not exceed the pre-configured threshold.
  • the terminal uses the second CG resource to transmit the first message, for example, the second CG resource is associated with the first SSB, the second CG resource corresponds to the first HARQ process, and the first HARQ process is the HARQ process #1; the first message includes:
  • Terminal data eg user plane data and/or control plane data.
  • the terminal data is optional data in the first message.
  • CE Media Access Control (Medium Access Control, MAC) Control Element (CE), such as BufferStatusReport (BSR) MAC CE, etc.
  • BSR BufferStatusReport
  • MAC CE is optional data in the first message.
  • the terminal device selects the first CG resource for retransmitting the first message when the second condition is met; wherein, the second condition includes: the first timer expires, and the first timer is used to control the terminal device to reselect the CG resource
  • the timing for retransmitting the first message; the timing for starting/restarting the first timer includes: after completing data new transmission/retransmission on the CG resource, and/or, after selecting a CG resource for new transmission/retransmission, and /or, when a retransmission opportunity is skipped.
  • the terminal device starts the first timer, and the T1 time point is a time point after the data new transmission/retransmission is completed on the CG resource, or is selected for the new transmission/retransmission A point in time after the retransmitted CG resource, or, a point in time when retransmission opportunities are skipped.
  • the first timer times out.
  • the method for the terminal device to select the first CG resource includes:
  • the terminal device selects the target SSB greater than or equal to the first RSRP threshold from the SSB set, and the target SSB is the first SSB or other SSBs in the SSB set except the first SSB; the terminal device selects the associated target SSB and the HARQ process is the first
  • the CG resource of the HARQ process serves as the first CG resource.
  • the terminal device selects SSB #3 as the target SSB from the SSB set, selects the CG resource associated with SSB #3 and the HARQ process is HARQ process #1 as the first CG resources.
  • the behavior of the terminal device includes one of the following:
  • Option 1 Select the first SSB as the target SSB
  • Option 2 choose one SSB as the target SSB
  • Option 3 Skip the current retransmission opportunity.
  • the terminal device selects the target SSB among the SSBs associated with the CG resource of the first HARQ process.
  • Fig. 7 shows a flowchart of an uplink retransmission method during small data transmission provided by an exemplary embodiment of the present application.
  • the method may be applied to a terminal device in a communication system as shown in FIG. 3, and the method may include the following steps 710 to 720:
  • Step 710 During the small data transmission process, if the second condition is met, trigger selection of the first CG resource, the second condition includes any one of the following: the first timer expires; the CG with the first HARQ process The resource arrives.
  • the first CG resource is the resource used by the first message in the process of retransmitting the small data.
  • the first timer is used to control the timing when the terminal device reselects the CG resource to retransmit the first message;
  • the first HARQ process is the HARQ process corresponding to the CG resource that initially transmits the first message.
  • the terminal device when the first timer expires, the terminal device immediately selects the retransmission resource of the first message; or, when the CG resource with the first HARQ process arrives, the terminal device immediately selects Selection of retransmission resources for the first message.
  • the CG resource is a resource configured periodically.
  • the timing for starting the first timer includes:
  • the second CG resource is the CG resource used for the last transmission of the first message.
  • the first timer is started every time the transmission of the first message is completed, and the CG resource used for retransmitting the first message is selected after the first timer expires.
  • the second CG resource is the CG resource used for the last transmission of the first message.
  • the first timer is started, and after the first timer expires, the CG resource used for retransmitting the first message is selected again, so as to achieve The selection of the CG resource for retransmitting the first message is performed periodically within a period of time.
  • the first timer is a timer for controlling the periodic reselection of CG resources by the terminal device.
  • the terminal device when the first timer expires and the terminal device needs to reselect the CG resource, if the terminal device fails to select the target SSB, and the terminal device chooses to skip the current retransmission opportunity of the first message, at this time point Restart the first timer.
  • Step 720 From the SSBs associated with the CG resource of the first HARQ process in the latest HARQ process in the time domain, select a target SSB satisfying the first condition, and use the CG resource associated with the target SSB as the first CG resource.
  • the closest HARQ process in the time domain that is the first HARQ process refers to the HARQ process that is the first HARQ process in the time domain closest to the time point when the selection of the first CG resource is triggered.
  • the nearest HARQ process in the time domain is the first HARQ process refers to: the time point before the first timer expires , the nearest HARQ process in the time domain is the first HARQ process.
  • the latest HARQ process that is the first HARQ process in the time domain refers to: the currently arriving CG resource with the first HARQ process A HARQ process corresponding to the CG resource of a HARQ process.
  • the terminal device selects the target SSB that satisfies the first condition among the SSBs associated with the CG resource of the first HARQ process in the latest HARQ process in the time domain, and uses the CG resource associated with the target SSB as the first CG resources.
  • the terminal device randomly selects an SSB that meets the first condition As the target SSB; or, each SSB corresponds to a priority, and the terminal device selects an SSB with the highest priority as the target SSB among the multiple SSBs that meet the first condition.
  • the method for determining the priority of the SSB in this embodiment is different. Be limited.
  • the first condition is a condition set for screening out SSBs with better signal quality.
  • the first condition includes: the RSRP measurement result is not less than the first RSRP threshold. That is, the terminal device selects the target SSB whose RSRP measurement result is not less than the first RSRP threshold among the SSBs associated with the CG resource of the first HARQ process in the time domain where the latest HARQ process is.
  • the first RSRP threshold is predefined in the standard, or is configured by the network device to the terminal device.
  • the terminal device will also perform the following steps:
  • the first SSB is the SSB selected when the first message was transmitted last time
  • the terminal device can reselect an SSB as the target SSB, and set The CG resource associated with the target SSB and the HARQ process being the first HARQ process is used as the first CG resource, and the first CG resource is used to retransmit the first message, or the SSB selection and the subsequent CG resource selection are no longer performed, considered Skip the current retransmission opportunity for the first message.
  • the terminal device in the case that the terminal device supports using CG resources to transmit the first message multiple times, in order to retransmit the first message, the terminal device can retransmit the first message at the time
  • the last HARQ process on the domain is the SSB associated with the CG resource of the first HARQ process, select the target SSB that meets the first condition, and use the CG resource associated with the target SSB as the first CG resource, and use the first CG resource to perform
  • the retransmission of the first message ensures the success rate of correctly receiving the first message at the network device side.
  • the terminal device can reselect an SSB as the target SSB to ensure the execution of the retransmission of the first message, or directly skip The retransmission opportunity of the current first message is used to save resource overhead.
  • FIG. 7 the technical solution shown in FIG. 7 will be exemplarily described with reference to FIG. 8 and FIG. 9 .
  • the terminal equipment in the RRC_INACTIVE state triggers the CG-SDT process when the third condition is met.
  • the third condition includes at least:
  • All the data to be transmitted belong to RBs that are allowed to trigger SDT, and the amount of data to be transmitted is not greater than the data amount threshold configured by the network.
  • the RSRP measurement result is not less than the RSRP threshold configured by the network.
  • ⁇ TA is valid, that is, TAT is running and/or the variation of RSRP does not exceed the pre-configured threshold.
  • the terminal uses the second CG resource to transmit the first message, for example, the second CG resource is associated with the first SSB, the second CG resource corresponds to the first HARQ process, and the first HARQ process is the HARQ process #1; the first message includes:
  • Terminal data eg user plane data and/or control plane data.
  • the terminal data is optional data in the first message.
  • ⁇ MAC CE such as BSR MAC CE, etc.
  • MAC CE is optional data in the first message.
  • the terminal device selects the first CG resource for retransmitting the first message when the second condition is met; wherein the second condition includes one of the following:
  • the first timer expires, and the first timer is used to control the timing when the terminal device reselects the CG resource to retransmit the first message; the timing of starting/restarting the first timer includes: after completing the new data transmission/retransmission on the CG resource , and/or, after selecting a CG resource for new transmission/retransmission, and/or, when skipping a retransmission opportunity.
  • the terminal device starts the first timer, and the T1 time point is a time point after data new transmission/retransmission is completed on the CG resource, or is selected for new transmission/retransmission A point in time after the retransmitted CG resource, or, a point in time when retransmission opportunities are skipped.
  • the first timer times out.
  • the CG resources are periodically configured resources, so the CG resources with the same HARQ process also appear periodically.
  • the CG resource with the first HARQ process arrives.
  • the method for the terminal device to select the first CG resource includes:
  • the terminal device judges whether there is a target SSB that satisfies the first RSRP threshold in the SSB associated with the CG resource of the first HARQ process in the last HARQ process in the time domain, and if it exists, the CG resource is used as the first CG resource .
  • the first timer expires, and the latest HARQ process in the time domain is the SSB associated with the CG resource of the first HARQ process, including: SSB#3 and SSB#4, and the terminal device judges the SSB Whether at least one SSB among #3 and SSB#4 satisfies the first RSRP threshold.
  • the CG resource with the first HARQ process arrives, and the SSB associated with the CG resource includes: SSB#5 and SSB#6, and the terminal device judges whether SSB#5 and SSB#6 There is at least one SSB that satisfies the first RSRP threshold.
  • another CG resource with the first HARQ process arrives, and the SSB associated with the CG resource includes: SSB#3 and SSB#4, and the terminal device judges whether there is at least one SSB in SSB#3 and SSB#4
  • the first RSRP threshold is met.
  • the behavior of the terminal device includes one of the following:
  • Option 1 Choose one of the SSBs associated with the CG resource as the target SSB.
  • Option 2 If the first SSB exists in the SSBs associated with the CG resource, select the first SSB as the target SSB.
  • Option 3 Skip the current retransmission opportunity.
  • Figure 10 shows a structural block diagram of an uplink retransmission device in the process of small data transmission provided by an exemplary embodiment of the present application.
  • the device can be implemented as a terminal device, or can be implemented as a part of the terminal device.
  • the device includes: resource selection module 1002;
  • the resource selection module 1002 is configured to select a target SSB during the small data transmission process, and use the CG resource associated with the target SSB as the first CG resource;
  • the first CG resource is a resource used by the first message in the process of retransmitting the small data.
  • the resource selection module 1002 is configured to select the target SSB satisfying the first condition from the SSB set, associate the target SSB and the HARQ process as the CG resource of the first HARQ process As the first CG resource;
  • the first HARQ process is a HARQ process corresponding to the CG resource that initially transmits the first message.
  • the device further includes: a selection trigger module
  • the selection triggering module is configured to trigger selection of the first CG resource when a second condition is met;
  • the second condition includes: a first timer expires, and the first timer is used to control an opportunity for the terminal device to reselect a CG resource to retransmit the first message.
  • the device when there is no target SSB satisfying the first condition in the set of SSBs, the device further includes: an SSB selection module;
  • the SSB selection module is configured to select one SSB in the SSB set as the target SSB;
  • the SSB selection module is configured to select a first SSB as the target SSB in the SSB set, and the first SSB is the SSB selected when the first message was transmitted last time;
  • the SSB selection module is configured to skip the retransmission opportunity of the first message.
  • the resource selection module 1002 is configured to select the target SSB satisfying the first condition from the SSBs associated with the CG resource of the first HARQ process in the latest HARQ process in the time domain , using the CG resource associated with the target SSB as the first CG resource;
  • the first HARQ process is a HARQ process corresponding to the CG resource that initially transmits the first message.
  • the device further includes: a selection trigger module
  • the selection triggering module is configured to trigger selection of the first CG resource when a second condition is met;
  • the second condition includes any one of the following: the first timer expires, and the first timer is used to control the opportunity for the terminal device to reselect the CG resource to retransmit the first message; A CG resource of a HARQ process arrives.
  • the device in the case where the latest HARQ process in the time domain is associated with the CG resource of the first HARQ process, and there is no target SSB that satisfies the first condition,
  • the device also includes: an SSB selection module;
  • the SSB selection module is configured to select an SSB as the target SSB from the SSBs associated with the CG resource of the first HARQ process in the latest HARQ process in the time domain;
  • the SSB selection module is configured to select a first SSB as the target SSB from the SSBs associated with the CG resource of the first HARQ process in the latest HARQ process in the time domain, and the first SSB is the last time the SSB selected when transmitting said first message;
  • the SSB selection module is configured to skip the retransmission opportunity of the first message.
  • the timing for starting the first timer includes:
  • the second CG resource is the CG resource used for the last transmission of the first message
  • a time point for skipping the retransmission opportunity of the first message is selected.
  • the first condition includes:
  • the RSRP measurement result is not less than the first RSRP threshold.
  • FIG. 11 shows a schematic structural diagram of a terminal device provided by an exemplary embodiment of the present application.
  • the terminal device 1100 includes: a processor 1101 , a transceiver 1102 and a memory 1103 .
  • the processor 1101 includes one or more processing cores, and the processor 1101 executes various functional applications by running software programs and modules.
  • the transceiver 1102 can be used for receiving and sending information, and the transceiver 1102 can be a communication chip.
  • the memory 1103 may be used to store a computer program, and the processor 1101 is used to execute the computer program, so as to implement various steps performed by the terminal device in the foregoing method embodiments.
  • the memory 1103 can be implemented by any type of volatile or non-volatile storage device or their combination, and the volatile or non-volatile storage device includes but not limited to: random access memory (Random-Access Memory, RAM) And read-only memory (Read-Only Memory, ROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), flash memory or other solid-state storage technologies, compact disc read-only memory (CD-ROM), high-density digital video disc (Digital Video Disc, DVD) or other optical storage, tape cartridges, tapes, disks storage or other magnetic storage devices.
  • RAM Random-Access Memory
  • ROM read-only memory
  • EPROM erasable programmable Read-Only Memory
  • EPROM erasable programmable Read-Only Memory
  • EEPROM Electrically erasable programmable read-only memory
  • processor 1101 and the transceiver 1102 involved in the embodiment of the present application can execute the steps performed by the terminal device in any of the methods shown in FIG. 4 to FIG. 9 above, and details are not repeated here.
  • the processor 1101 is configured to select a target SSB during the small data transmission process, and use the CG resource associated with the target SSB as the first CG resource;
  • the first CG resource is a resource used by the first message in the process of retransmitting the small data.
  • a computer-readable storage medium stores at least one instruction, at least one program, a code set or an instruction set, the at least one instruction, the At least one segment of program, the code set or instruction set is loaded and executed by the processor to implement the uplink retransmission method during the small data transmission process provided by the above method embodiments.
  • a chip is also provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is run on a terminal device, it is used to realize the small data transmission described in the above aspect Uplink retransmission method in the process.
  • a computer program product is also provided, and when the computer program product is run on a processor of a computer device, it is used to execute the method for uplink retransmission during small data transmission described in the above aspects.
  • the program can be stored in a computer-readable storage medium.
  • the above-mentioned The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, and the like.

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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 des communications sans fil. Sont divulgués un procédé et un appareil de retransmission de liaison montante dans un processus de transmission de données de petite taille, un dispositif et un support. Le procédé est appliqué à un dispositif terminal. Le procédé consiste à : dans un processus de transmission de données de petite taille, sélectionner un SSB cible, et considérer une ressource CG associée au SSB cible comme étant une première ressource CG, la première ressource CG étant une ressource utilisée pour retransmettre un premier message dans le processus de données de petite taille.
PCT/CN2022/071837 2022-01-13 2022-01-13 Procédé et appareil de retransmission de liaison montante dans un processus de transmission de données de petite taille, dispositif et support Ceased WO2023133760A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2022/071837 WO2023133760A1 (fr) 2022-01-13 2022-01-13 Procédé et appareil de retransmission de liaison montante dans un processus de transmission de données de petite taille, dispositif et support
CN202280073277.XA CN118176804A (zh) 2022-01-13 2022-01-13 小数据传输过程中的上行重传方法、装置、设备及介质

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PCT/CN2022/071837 WO2023133760A1 (fr) 2022-01-13 2022-01-13 Procédé et appareil de retransmission de liaison montante dans un processus de transmission de données de petite taille, dispositif et support

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WO2023133760A1 true WO2023133760A1 (fr) 2023-07-20

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113518453A (zh) * 2020-04-10 2021-10-19 夏普株式会社 数据传输方法以及用户设备
US20210410180A1 (en) * 2020-06-24 2021-12-30 FG Innovation Company Limited User equipment and method for small data transmission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113518453A (zh) * 2020-04-10 2021-10-19 夏普株式会社 数据传输方法以及用户设备
US20210410180A1 (en) * 2020-06-24 2021-12-30 FG Innovation Company Limited User equipment and method for small data transmission

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "Details of CG based SDT", 3GPP DRAFT; R2-2105759, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Electronic meeting; 20210519, 10 May 2021 (2021-05-10), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052003937 *
LG ELECTRONICS: "Autonomous retransmission in CG-SDT", 3GPP DRAFT; R2-2111125, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Electronic meeting; 20211101 - 20211112, 22 October 2021 (2021-10-22), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052067560 *
VIVO: "Supporting small data transmission via CG PUSCH", 3GPP DRAFT; R2-2107057, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. electronic; 20210816 - 20210827, 6 August 2021 (2021-08-06), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052033851 *

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