WO2022120747A1 - Procédé de communication sans fil et dispositif terminal - Google Patents

Procédé de communication sans fil et dispositif terminal Download PDF

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Publication number
WO2022120747A1
WO2022120747A1 PCT/CN2020/135373 CN2020135373W WO2022120747A1 WO 2022120747 A1 WO2022120747 A1 WO 2022120747A1 CN 2020135373 W CN2020135373 W CN 2020135373W WO 2022120747 A1 WO2022120747 A1 WO 2022120747A1
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WIPO (PCT)
Prior art keywords
timer
terminal device
harq
round
duration
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PCT/CN2020/135373
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English (en)
Chinese (zh)
Inventor
李海涛
胡奕
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Oppo广东移动通信有限公司
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.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202080106165.0A priority Critical patent/CN116325584A/zh
Priority to PCT/CN2020/135373 priority patent/WO2022120747A1/fr
Publication of WO2022120747A1 publication Critical patent/WO2022120747A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • the embodiments of the present application relate to the field of communication, and more particularly, to a method and terminal device for wireless communication.
  • the fifth-generation mobile communication technology 5-Generation New Radio (5G NR) system defines the deployment scenarios of non-terrestrial networks (NTN) systems including satellite networks.
  • NTN non-terrestrial networks
  • the NTN system can realize the continuity of 5G NR services.
  • the cells covered by the ground are also not fixed at the geographic location, which brings new challenges to the configuration of some timers.
  • Embodiments of the present application provide a wireless communication method and a terminal device.
  • the terminal device can adjust the duration of a timer based on the round-trip propagation delay, so as to meet the requirements of an NTN scenario.
  • the terminal device starts a first timer, where the first timer is used to indicate a time window during which SR is prohibited from being sent, or, the first timer is used to indicate a time window during which new data cannot be sent using the target HARQ process on the CG;
  • a terminal device for executing the method in the above-mentioned first aspect.
  • the terminal device includes functional modules for executing the method in the first aspect.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.
  • the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device in which the apparatus is installed executes the method in the above-mentioned first aspect.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute the method in the above-mentioned first aspect.
  • a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of the first aspect above.
  • a computer program which, when run on a computer, causes the computer to perform the method of the above-mentioned first aspect.
  • the duration of the first timer is equal to the sum of the duration configured by the network device for the first timer and the round-trip propagation delay, that is, the terminal device can adjust the duration of the timer based on the round-trip propagation delay to avoid network devices Excessive signaling overhead caused by frequent reconfiguration of the duration of the first timer due to changes in the round-trip propagation delay.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for wireless communication according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a terminal device starting an SR prohibit timer according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a terminal device starting a CG timer according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 7 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband 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
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wireless Fidelity Wireless Fidelity
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • augmented reality (Augmented Reality, AR) terminal Equipment wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
  • a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
  • Pico cell Femto cell (Femto cell), etc.
  • These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • predefinition may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
  • the implementation method is not limited.
  • predefined may refer to the definition in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which are not limited in this application.
  • the 5G NR system defines the deployment scenarios of NTN systems including satellite networks.
  • NTN generally uses satellite communication to provide communication services to terrestrial users.
  • satellite communication has many unique advantages.
  • satellite communication is not limited by the user's geographical area.
  • general terrestrial communication cannot cover areas such as oceans, mountains, deserts, etc. where communication equipment cannot be set up or cannot be covered due to sparse population.
  • satellite communication due to a single Satellites can cover a large ground, and satellites can orbit around the earth, so theoretically every corner of the earth can be covered by satellite communications.
  • satellite communication has great social value.
  • Satellite communications can be covered at low cost in remote mountainous areas and poor and backward countries or regions, so that people in these regions can enjoy advanced voice communication and mobile Internet technologies, which is conducive to narrowing the digital divide with developed regions and promoting development in these areas.
  • the satellite communication distance is long, and the communication cost does not increase significantly when the communication distance increases; finally, the satellite communication has high stability and is not limited by natural disasters.
  • Communication satellites are classified into Low-Earth Orbit (LEO) satellites, Medium-Earth Orbit (MEO) satellites, Geostationary Earth Orbit (GEO) satellites, and highly elliptical orbits according to different orbital altitudes. (High Elliptical Orbit, HEO) satellites, etc.
  • LEO Low-Earth Orbit
  • MEO Medium-Earth Orbit
  • GEO Geostationary Earth Orbit
  • HEO High Elliptical Orbit
  • the altitude range of LEO satellites is 500km to 1500km, and the corresponding orbital period is about 1.5 hours to 2 hours.
  • the signal propagation delay of single-hop communication between users is generally less than 20ms.
  • the maximum satellite viewing time is 20 minutes.
  • the signal propagation distance is short, the link loss is small, and the transmit power requirements of the user terminal are not high.
  • the satellite uses multiple beams to cover the ground.
  • a satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover dozens of diameters. to hundreds of kilometers of ground.
  • the terminal device enables the serving base station to know the uplink buffered data volume of the terminal device through a Buffer Status Report (BSR), so that the base station can schedule the terminal device according to the data volume information provided by the terminal device.
  • BSR Buffer Status Report
  • Each uplink logical channel corresponds to a logical channel group (Logical Channel Group, LCG), and multiple uplink logical channels can correspond to the same LCG.
  • LCG Logical Channel Group
  • the correspondence between logical channels (Logical Channel, LCH) and LCG is determined by the network device through wireless resources Control (Radio Resource Control, RRC) signaling configuration.
  • the terminal device reports the BSR based on the LCG.
  • Each terminal device in NR can support up to 8 LCGs.
  • Trigger conditions for BSR can include the following:
  • regular BSR (Regular BSR) will be triggered
  • the padding part of the uplink resources allocated for the terminal equipment can carry the BSR Media Access Control Control Element (MAC CE) after carrying other uplink data.
  • MAC CE Media Access Control Control Element
  • a padding BSR (Padding) will be issued.
  • the Regular BSR When the retransmission BSR timer (retxBSR-Timer) times out, and there is currently at least one uplink logical channel for which uplink data is to be sent, the Regular BSR will be triggered;
  • each of those logical channels triggers a separate Regular BSR.
  • the BSR is carried through the BSR MAC CE.
  • the terminal device triggers a Scheduling Request (SR).
  • SR Scheduling Request
  • the terminal device applies to the network device for uplink resources through the SR.
  • the network device does not know when the terminal device needs to send uplink data, that is, when the terminal device will send the SR. Therefore, the network device can allocate periodic physical uplink control channel (Physical Uplink Control Channel, PUCCH) resources for transmitting SR to the terminal device, and then the network device detects whether there is an SR report on the allocated SR resources.
  • PUCCH Physical Uplink Control Channel
  • the network device may choose whether to configure the PUCCH resource for transmitting the SR for the uplink logical channel.
  • the network device may choose whether to configure the PUCCH resource for transmitting the SR for the uplink logical channel.
  • the terminal device sends an SR on the PUCCH resource corresponding to the logical channel for transmitting an SR; Otherwise, the terminal device initiates random access.
  • Each PUCCH resource used to transmit SR corresponds to the following configuration parameters:
  • the network device configures an SR-Prohibit Timer (sr-ProhibitTimer) for each SR configuration (SR configuration).
  • SR configuration corresponding to the pending SR (pending SR)
  • the PUCCH resource satisfies the SR transmission conditions (for example, does not overlap with the measurement gap (measurement gap) and does not overlap with the Physical Uplink Shared Channel (PUSCH))
  • PUSCH Physical Uplink Shared Channel
  • SR can only be sent when sr-ProhibitTimer is not running (including when sr-ProhibitTimer is not started and after timeout).
  • 5G NR configuration authorization timer Configured Grant Timer, CG timer
  • the concept of preconfigured resources is introduced, specifically Semi-Persistent Scheduling (SPS) (for downlink (DL)) and CG (for uplink ( Uplink, UL)). Since the maximum number of Hybrid Automatic Repeat request (HARQ) processes for the terminal device is 16, for each CG configuration, the network device configures a limited number of HARQ process numbers for it, and at time t0 The HARQ process ID of the CG resource is the same as the HARQ process ID of the CG resource at time t1. When the MAC PDU1 is packaged at time t0, the MAC PDU1 is stored in the HARQ process A.
  • SPS Semi-Persistent Scheduling
  • CG for uplink ( Uplink, UL)
  • the MAC PDU1 will be flushed (flush), even if the media access control protocol data unit (Media Access Control Protocol Data Unit, MAC PDU) has not been transmitted correctly. Therefore, the mechanism of CG timer for each HARQ process is introduced. Before the CG timer times out, the MAC PDUs stored in the HARQ process cannot be flushed. Before the CG timer times out, if the network device schedules the retransmission of the HARQ process (Configured Scheduling Radio Network Temporary Identity (CS-RNTI) to schedule Dynamic Grant (DG)), Then the terminal device retransmits the MAC PDU of the HARQ process, and restarts the CG timer.
  • CS-RNTI Configured Scheduling Radio Network Temporary Identity
  • DG Dynamic Grant
  • NR has two levels of retransmission mechanisms: the HARQ mechanism at the Media Access Control (MAC) layer and the Automatic Repeat reQuest (ARQ) mechanism at the Radio Link Control (RLC) layer.
  • the retransmission of lost or erroneous data is mainly handled by the HARQ mechanism of the MAC layer, supplemented by the retransmission function of the RLC layer.
  • the HARQ mechanism of the MAC layer can provide fast retransmission, and the ARQ mechanism of the RLC layer can provide reliable data transmission.
  • HARQ uses the Stop-and-Wait Protocol (Stop-and-Wait Protocol) to send data.
  • Stop-and-wait Protocol After the sender sends a transport block (TB), it stops and waits for an acknowledgment. In this way, the sender stops and waits for an acknowledgment after each transmission, resulting in low user throughput. Therefore, NR uses multiple parallel HARQ processes. When one HARQ process is waiting for acknowledgment information, the sender can use another HARQ process to continue sending data.
  • These HARQ processes collectively form a HARQ entity, which incorporates a stop-and-wait protocol, allowing data to be transmitted continuously.
  • HARQ is divided into uplink HARQ and downlink HARQ. Uplink HARQ is for uplink data transmission, and downlink HARQ is for downlink data transmission. The two are independent of each other.
  • each HARQ entity maintains a set of parallel downlink HARQ processes and a set of parallel uplink HARQ processes.
  • each uplink and downlink carrier supports a maximum of 16 HARQ processes.
  • the base station may indicate the maximum number of HARQ processes to the terminal device through RRC signaling semi-static configuration according to the network deployment situation. If the network does not provide corresponding configuration parameters, the default number of HARQ processes in downlink is 8, and the maximum number of HARQ processes supported by each uplink carrier is always 16.
  • Each HARQ process corresponds to a HARQ process identifier (Identity, ID).
  • ID HARQ process identifier
  • the Broadcast Control Channel BCCH
  • HARQ ID 0 is used for the transmission of the third message (Message3, Msg3) in the four-step random access process in the random process.
  • 3GPP is discussing the introduction of the HARQ function to reduce the data transmission delay in the process of NTN standardization by 3GPP, and it is agreed that the HARQ process can be used to enable The configuration of enabling/disabling the HARQ function, that is, for multiple HARQ processes of a terminal, you can configure the HARQ function of some of the HARQ processes to be enabled, and the HARQ function of another part of the HARQ process to be disabled.
  • the HARQ feedback function of a certain HARQ process is configured to be disabled.
  • the network may not wait for the uplink transmission of the receiving terminal (for uplink HARQ, it is uplink data transmission, and for downlink HARQ, the terminal is for the downlink data transmission of the HARQ.
  • Acknowledgement (ACK)/Negative Acknowledgement (NACK) feedback) and continue to schedule the HARQ process for data transmission, thereby reducing the MAC transmission delay; on the other hand, if the network no longer schedules the HARQ process for retransmission , MAC transmission reliability will be affected.
  • QoS Quality of Service
  • some services are sensitive to delay, and some services have strict requirements on packet loss rate.
  • QoS Quality of Service
  • the HARQ process is used for transmission, thereby improving transmission reliability.
  • the signal transmission delay between the terminal equipment and the network equipment is very small, and the waiting time from the terminal equipment sending the SR to the terminal equipment receiving the uplink resources scheduled by the network equipment is generally short, so the sr-ProhibitTimer can Set to a smaller value.
  • the signal propagation delay between terminal equipment and satellites in NTN is greatly increased. Therefore, when the terminal equipment has uplink data arriving, but the terminal equipment does not have uplink resources for data transmission, the terminal equipment It takes a relatively long time to receive the schedule from the network.
  • a solution at this stage is to increase the value range of sr-ProhibitTimer to at least cover the round trip propagation delay (Round Trip Time, RTT) time in the NTN network.
  • RTT time of terminal devices in the NTN network also varies greatly (especially in the LEO scenario), which may cause the network to frequently reconfigure the value of sr-ProhibitTimer, resulting in signaling overhead and new parameters due to too long RTT.
  • a larger value of sr-ProhibitTimer is not conducive to the precise control by the network of the time for the terminal to send the SR.
  • the present application proposes a solution for a terminal device to determine the duration of a timer.
  • the terminal device can adjust the duration of the timer based on the round-trip propagation delay, thereby meeting the requirements of NTN scenarios.
  • FIG. 2 is a schematic flowchart of a method 200 for wireless communication according to an embodiment of the present application. As shown in FIG. 2 , the method 200 may include at least part of the following contents:
  • the embodiments of the present application may be applied to an NTN network.
  • the embodiments of the present application may also be applied to other networks, which are not limited in the present application.
  • the first timer may be, for example, an SR prohibition timer (sr-ProhibitTimer).
  • the network device configures an SR prohibition timer (sr-ProhibitTimer) for each SR configuration (SR configuration).
  • SR configuration corresponding to the pending SR (pending SR)
  • the terminal device starts the sr-ProhibitTimer.
  • sr-ProhibitTimer for this SR configuration, the terminal device is prohibited from sending SR, and SR can only be sent when sr-ProhibitTimer is not running (including when sr-ProhibitTimer is not started and after timeout).
  • sr-ProhibitTimer a solution at this stage is to increase the value range of sr-ProhibitTimer to at least cover the round-trip propagation delay (RTT) time in the NTN network, that is, the duration of sr-ProhibitTimer is greater than or equal to RRT, This ensures that the sr-ProhibitTimer meets the delay requirement in NTN.
  • RTT round-trip propagation delay
  • the RTT time of the terminal device in the NTN network also varies greatly (especially in the LEO scenario), which may cause the network device to frequently reconfigure the duration of the sr-ProhibitTimer, causing signaling overhead.
  • a larger duration value of sr-ProhibitTimer is not conducive to the precise control by the network of the time for the terminal to send the SR.
  • the first timer when the first timer is used to indicate a time window for prohibiting the sending of SRs, that is, when the first timer is an SR prohibition timer (sr-ProhibitTimer), the first timer
  • the duration of the timer is equal to the sum of the duration configured by the network device for the first timer and the round-trip propagation delay, so that the terminal device can adjust the duration of the timer based on the round-trip propagation delay to avoid the network device from frequently changing the round-trip propagation delay. Excessive signaling overhead caused by reconfiguring the duration of the first timer.
  • the above S210 may specifically be:
  • the terminal device starts the first timer; or, the terminal device starts the first timer when sending an SR on the SR configuration resource; or, the terminal device starts the first timer when the SR configuration resource The first timer is started after the SR is sent on the resource.
  • the terminal device receives the RRC configuration information sent by the network device, which includes an SR prohibition timer (sr-ProhibitTimer) (such as the duration of the sr-ProhibitTimer).
  • sr-ProhibitTimer such as the duration of the sr-ProhibitTimer.
  • the network device configures the duration of the SR-ProhibitTimer (sr-ProhibitTimer)
  • the influence of the round-trip propagation delay is not considered.
  • the UL LCH1 of the terminal device triggers the sending of the SR and starts the SR -ProhibitTimer, whose duration value of sr-ProhibitTimer is the sum of the duration of sr-ProhibitTimer configured by the network and the round-trip propagation delay (RTT).
  • RTT round-trip propagation delay
  • the first timer may be, for example, a CG timer (CG Timer).
  • CG Timer CG Timer
  • the target HARQ process cannot be used to send new data.
  • the terminal device uses the target HARQ process for transmission, and restarts the CG timer.
  • the target HARQ process is not configured to enable HARQ or is not configured to enable HARQ feedback or is not configured to disable HARQ retransmission; or, the target HARQ process is configured to enable HARQ Either configured with HARQ feedback enabled or configured with HARQ retransmission enabled.
  • the terminal device is applied to the non-terrestrial communication network NTN.
  • the transceiver 430 may include a transmitter and a receiver.
  • the transceiver 430 may further include antennas, and the number of the antennas may be one or more.
  • the apparatus 500 may further include an output interface 540 .
  • the processor 510 may control the output interface 540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the apparatus can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, which are not repeated here for brevity.
  • the apparatus may be applied to the terminal equipment in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the terminal equipment in each method of the embodiments of the present application, which will not be repeated here for brevity.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. Repeat.
  • the computer program may be applied to the terminal device in the embodiments of the present application, and when the computer program runs on the computer, the computer executes the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

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Abstract

Les modes de réalisation de la présente invention concernent un procédé de communication sans fil et un dispositif terminal. Le dispositif terminal peut ajuster la durée d'une minuterie sur la base du délai de propagation aller-retour, et peut ainsi répondre aux exigences du scénario NTN. Le procédé de communication sans fil comprend : le dispositif terminal démarre une première minuterie, la première minuterie étant utilisée pour indiquer une fenêtre de temps dans laquelle l'envoi de SR est interdit, ou la première minuterie étant utilisée pour indiquer une fenêtre de temps dans laquelle de nouvelles données ne peuvent pas être envoyées en utilisant un processus HARQ cible sur CG, dans lequel la durée de la première minuterie est égale à la somme d'une première durée et du délai de propagation aller-retour, et la première durée est une durée fixée par un dispositif de réseau pour la première minuterie.
PCT/CN2020/135373 2020-12-10 2020-12-10 Procédé de communication sans fil et dispositif terminal WO2022120747A1 (fr)

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PCT/CN2020/135373 WO2022120747A1 (fr) 2020-12-10 2020-12-10 Procédé de communication sans fil et dispositif terminal

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