WO2020192602A1 - Procédé d'envoi de données retransmises, procédé et dispositif d'envoi de ressources de retransmission de données, support d'informations et dispositif électronique - Google Patents

Procédé d'envoi de données retransmises, procédé et dispositif d'envoi de ressources de retransmission de données, support d'informations et dispositif électronique Download PDF

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Publication number
WO2020192602A1
WO2020192602A1 PCT/CN2020/080552 CN2020080552W WO2020192602A1 WO 2020192602 A1 WO2020192602 A1 WO 2020192602A1 CN 2020080552 W CN2020080552 W CN 2020080552W WO 2020192602 A1 WO2020192602 A1 WO 2020192602A1
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WIPO (PCT)
Prior art keywords
retransmission
data
terminal
bsr
base station
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PCT/CN2020/080552
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English (en)
Chinese (zh)
Inventor
张博源
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中兴通讯股份有限公司
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Publication of WO2020192602A1 publication Critical patent/WO2020192602A1/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
    • H04L1/1607—Details of the supervisory signal
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present disclosure relates to the field of communications, for example, to a method, device, storage medium, and electronic device for sending retransmission data and data retransmission resources.
  • the application scenarios of wireless communication have gradually penetrated into vertical industries, such as the Internet of Vehicles and many other Internet of Things scenarios.
  • the Internet of Things based on Long Term Evolution (LTE) communication such as in the Internet of Vehicles
  • the sending terminal often needs to transmit the same data, such as the same transmission block, to the opposite terminal multiple times. Including one initial transmission and multiple retransmissions to meet service reliability requirements.
  • LTE Long Term Evolution
  • the terminal informs the base station whether it needs to request initial transmission/retransmission resources by performing hybrid automatic retransmission request response/negative response feedback (Hybrid Automatic Retransmission Request Acknowledgement/Negative Acknowledgment, or HARQ ACK/NACK for short).
  • hybrid automatic retransmission request response/negative response feedback Hybrid Automatic Retransmission Request Acknowledgement/Negative Acknowledgment, or HARQ ACK/NACK for short.
  • Embodiments of the present invention provide a method, device, storage medium, and electronic device for sending retransmitted data and data retransmission resources, which can improve the efficiency of sending retransmitted data.
  • a method for sending retransmission data including: a first terminal sends a first request to a base station, wherein the first request is used to instruct the base station according to the first request Sending the data retransmission resource to the first terminal; after receiving the data retransmission resource, the first terminal sends the retransmission data to the second terminal according to the data retransmission resource.
  • a method for sending data retransmission resources including: receiving a first request sent by a first terminal; and sending data retransmission resources to the first terminal according to the first request , Wherein the data retransmission resource is used to instruct the first terminal to send retransmission data to the second terminal according to the data retransmission resource.
  • a device for sending retransmission data including: a first sending module, configured to send a first request to a base station by a first terminal, wherein the first request is used to indicate The base station sends data retransmission resources to the first terminal according to the first request; a second sending module is configured to, after the first terminal receives the data retransmission resources, use the data retransmission resources Send the retransmitted data to the second terminal.
  • an apparatus for sending data retransmission resources including: a receiving module, configured to receive a first request sent by a first terminal; and a third sending module, configured to receive a first request according to the first terminal.
  • a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.
  • an electronic device including a memory and a processor, the memory stores a computer program, and the processor is configured to run the computer program to execute any of the above Steps in the method embodiment.
  • the first terminal since the first terminal sends a first request to the base station, the first request is used to instruct the base station to send data retransmission resources to the first terminal according to the first request; the first After receiving the data retransmission resource, the terminal sends the retransmitted data to the second terminal according to the data retransmission resource without using the feedback method in the related technology, which can improve the transmission efficiency of the retransmitted data.
  • FIG. 1 is a block diagram of the hardware structure of a terminal for a method for sending retransmitted data according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for sending retransmitted data according to an embodiment of the present invention
  • Fig. 3 is a structural block diagram of a device for sending retransmission data according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for sending data retransmission resources according to an embodiment of the present invention
  • FIG. 5 is a structural block diagram of a device for sending data retransmission resources according to an embodiment of the present invention
  • Figure 6 is a format diagram of a sidelink BSR according to an optional embodiment of the present invention.
  • Fig. 7 is a schematic diagram of a MAC PDU structure according to an optional embodiment of the present invention.
  • the Internet of Things such as the Internet of Vehicles
  • the Internet of Things means that multiple car-connected terminals can participate in wireless communication.
  • wireless cellular communication technology real-time information interaction between cars, cars and roadside units, and cars and people, such as telling each other
  • the current status including vehicle location, speed, driving path
  • road environment information such as road congestion, sudden traffic accidents
  • collaborative perception and interaction in order to achieve a variety of early warning information to reduce the occurrence of traffic safety accidents.
  • the Internet of Vehicles technology has been introduced to support some advanced services, such as vehicle formation, and the front of the vehicle will lead the members of the formation group to drive in order to save fuel consumption.
  • the method provided in this embodiment can be executed on a terminal in the Internet of Things, and can also be executed on various mobile terminals, computer terminals, or other similar computing devices such as terminals.
  • FIG. 1 is a hardware structure block diagram of a terminal for a method for sending retransmitted data according to an embodiment of the present invention.
  • the terminal 10 may include one or more (only one is shown in FIG. 1) processor 102 (the processor 102 may include but is not limited to a microprocessor (Microprocessor Control Unit, MCU) or programmable logic device) (Field Programmable Gate Array, FPGA) and other processing devices) and a memory 104 for storing data.
  • the aforementioned terminal may also include a transmission device 106 and an input/output device 108 for communication functions.
  • the structure shown in FIG. 1 is only for illustration, and does not limit the structure of the foregoing terminal.
  • the terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration from that shown in FIG.
  • the memory 104 may be used to store computer programs, for example, software programs and modules of application software, such as the computer programs corresponding to the method for sending retransmitted data in the embodiment of the present invention.
  • the processor 102 runs the computer programs stored in the memory 104, Thereby, various functional applications and data processing are executed, that is, the above-mentioned method is realized.
  • the memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory.
  • the memory 104 may include a memory remotely provided with respect to the processor 102, and these remote memories may be connected to the terminal 10 through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
  • the transmission device 106 is used to receive or send data via a network.
  • the aforementioned specific examples of the network may include a wireless network provided by the communication provider of the terminal 10.
  • the transmission device 106 includes a network adapter (Network Interface Controller, NIC for short), which can be connected to other network devices through a base station so as to communicate with the Internet.
  • the transmission device 106 may be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet in a wireless manner.
  • RF Radio Frequency
  • the embodiments of this application can run on a network architecture including a first terminal, a second terminal, and a base station.
  • the first terminal needs to send data to the second terminal, such as retransmitting data, but the first terminal
  • the base station needs to request data retransmission resources for transmitting retransmitted data, such as through link authorization.
  • FIG. 2 is a flowchart of the method for sending retransmitted data according to an embodiment of the present invention. As shown in FIG. 2, the process is Including the following steps:
  • Step S202 The first terminal sends a first request to the base station, where the first request is used to instruct the base station to send data retransmission resources to the first terminal according to the first request.
  • Step S204 After receiving the data retransmission resource, the first terminal sends the retransmitted data to the second terminal according to the data retransmission resource.
  • the execution subject of the foregoing steps may be a terminal in the Internet of Things, but is not limited to this.
  • the data retransmission resources may include through link authorization.
  • the first request is a first buffer status report BSR and/or a second scheduling request SR.
  • the first terminal when the first request is the first BSR, the first terminal is triggered to send the first BSR to the base station when one of the following situations is met:
  • the first terminal has data retransmission requirements, and the first terminal is not configured with available data retransmission resources; or,
  • the first terminal has data retransmission requirements, and the first terminal is configured with available data retransmission resources, and the available data retransmission resources cannot meet the transmission requirements of the retransmitted data.
  • the first terminal when the first request is the first BSR, the first terminal sends the first BSR to the base station, where the first BSR is used to instruct the base station to send data retransmission resources to the first terminal according to the first BSR, including At least one of the following:
  • the first terminal sends a first BSR to the base station, where the first BSR carries a process identifier for controlling the control process of retransmission data transmission, and the process identifier is used to instruct the base station to determine whether the retransmission data is in accordance with the control process of retransmission data transmission
  • the data initial transmission resource allocated during initial transmission, and the data retransmission resource is issued to the first terminal according to the data initial transmission resource;
  • the first terminal sends a first BSR to the base station, where the first BSR carries a frequency identifier used to indicate the transmission frequency of the retransmitted data, and the frequency identifier is used to instruct the base station to send the first BSR according to the transmission frequency of the retransmitted data.
  • a terminal sends data retransmission resources;
  • the first terminal sends a first BSR to the base station, where the first BSR carries a level identifier for indicating the priority of the retransmitted data, and the level identifier is used to instruct the base station to send data to the first terminal according to the priority of the retransmitted data Retransmission resources;
  • the first terminal sends a first BSR to the base station, where the first BSR carries a channel identifier for indicating the logical channel corresponding to the retransmitted data, and the channel identifier is used to instruct the base station to send the first BSR according to the logical channel corresponding to the retransmitted data.
  • the terminal sends data retransmission resources;
  • the first terminal sends a first BSR to the base station, where the first BSR carries a channel group identifier used to indicate the logical channel group corresponding to the retransmitted data, and the channel group identifier is used to indicate the base station according to the logical channel corresponding to the retransmitted data
  • the group sends data retransmission resources to the first terminal;
  • the first terminal sends a first BSR to the base station, where the first BSR carries a first data volume identifier used to characterize the data volume of the retransmitted data, and the first data volume identifier is used to indicate the base station according to the data corresponding to the retransmitted data Sending data retransmission resources to the first terminal;
  • the first terminal sends a first BSR to the base station, where the first BSR carries a second data volume identifier for indicating the data volume corresponding to the retransmitted data, and the second data volume identifier is used to instruct the base station to identify according to the second data volume.
  • the data retransmission resource is sent to the first terminal, and the data volume corresponding to the retransmitted data is determined by the first terminal according to the data volume of the retransmitted data when it is initially transmitted.
  • the method of this embodiment further includes: the first terminal sends the first scheduling request SR to the base station, where: The first SR is used to request BSR transmission resources, where the BSR transmission resources are used to instruct the first terminal to send the first BSR to the base station.
  • the BSR transmission resource may include the BSR uplink grant.
  • the method of this embodiment further includes: when one of the following conditions is met, the first terminal is triggered to send the first SR to the base station:
  • the first terminal There is retransmitted data on the first logical channel of the first terminal and the retransmitted data has a corresponding first BSR, and the first terminal is configured with available uplink authorization, and according to the logical channel priority sorting rule (Logical Channel Prioritization, LCP) ), the available uplink grant cannot satisfy the data transmission on the first logical channel; or,
  • LCP Logical Channel Prioritization
  • the first terminal has a data retransmission requirement, but is not configured with an available through link sidelink authorization, or the first terminal is configured with an available sidelink authorization and the available sidelink authorization cannot meet the priority requirements corresponding to the retransmitted data.
  • the method of this embodiment further includes: when the first request is the second SR, when one of the following situations is satisfied, the first terminal is triggered to send the second SR to the base station:
  • the first terminal has data retransmission requirements, and the first terminal is not configured with available data retransmission resources; or,
  • the first terminal has a data retransmission requirement, and the first terminal is configured with available data retransmission resources, and the available data retransmission resources cannot meet the transmission requirement of retransmitted data.
  • the first request carries a retransmission identifier for indicating that the retransmission data needs to be transmitted.
  • the retransmission identifier is located in the media access control (Media Access Control, MAC) control element (CE) of the first BSR. Or in the content of the first BSR.
  • Media Access Control Media Access Control, MAC
  • CE control element
  • the retransmission identifier is the logical channel identifier (Logical Channel Identifier, LCID) in the MAC CE subheader of the first BSR , Where the LCID value is Re-Transmission BSR.
  • LCID Logical Channel Identifier
  • the LCID value of Re-Transmission BSR can indicate that the first request is a BSR, or it can also indicate that it is a retransmission request for requesting retransmission of data.
  • the method of this embodiment further includes:
  • the first terminal receives the first signaling issued by the base station, where the first signaling indicates the retransmission logical channel configured by the base station for retransmission of data and the retransmission SR configuration;
  • the first terminal transmits the retransmission data to the second terminal according to the retransmission logical channel and the retransmission SR configuration.
  • the method before the first terminal receives the first signaling issued by the base station, the method further includes:
  • the first terminal sends the through link terminal information to the base station, where the through link terminal information indicates the status of the retransmission data, and the through link terminal information is used to instruct the base station to configure the first terminal according to the received through link terminal information Retransmit the logical channel and retransmit the SR configuration, and indicate the retransmission SR configuration ID for the retransmission logical channel, where the retransmission SR configuration ID is used to characterize the SR configuration corresponding to the retransmission logical channel.
  • the method of this embodiment further includes: the first terminal transmits retransmission data to the second terminal by using the retransmission logical channel and the retransmission SR configuration, where the retransmission logical channel and the retransmission SR configuration are the first The terminal is configured for retransmission of data.
  • the first terminal before the first terminal uses the retransmission logical channel and the retransmission SR configuration to transmit the retransmission data to the second terminal, the first terminal receives the SR configuration information issued by the base station, and performs retransmission according to the SR configuration information.
  • the logical channel allocates the retransmission SR configuration and the retransmission SR configuration ID, where the retransmission SR configuration ID is used to characterize the retransmission SR configuration corresponding to the retransmission logical channel.
  • the first terminal sends a first request to the base station, where the first request is used to instruct the base station to send data retransmission resources to the first terminal according to the first request, and further includes: the first terminal continuously sends data to the base station Two or more first requests, where the first terminal continuously sends two or more first requests to the base station to instruct the base station to issue data retransmission resources to the first terminal.
  • the method according to the foregoing embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware.
  • the present disclosure can be embodied in the form of a software product, the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), including a number of instructions to make a terminal device (can It is a mobile phone, a computer, a server, or a network device, etc.) to execute the methods of the various embodiments of the present disclosure.
  • a device for sending retransmission data is also provided.
  • the device is used to implement the foregoing method embodiments and optional implementation manners, and those that have been described will not be repeated.
  • the term "module" can implement a combination of software and/or hardware with predetermined functions.
  • the devices described in the following embodiments are implemented by software, hardware or a combination of software and hardware is also possible and conceived.
  • Fig. 3 is a structural block diagram of a device for sending retransmission data according to an embodiment of the present invention. As shown in Fig. 3, the device includes:
  • the first sending module 31 is configured for the first terminal to send a first request to the base station, where the first request is used to instruct the base station to send data retransmission resources to the first terminal according to the first request;
  • the second sending module 32 is configured to send the retransmitted data to the second terminal according to the data retransmission resource after the first terminal receives the data retransmission resource.
  • the first request is a first buffer status report BSR and/or a second scheduling request SR.
  • the first sending module 31 when the first request is the first BSR, is further configured to be triggered to send the first BSR to the base station when one of the following situations is met:
  • the first terminal has data retransmission requirements, and the first terminal is not configured with available data retransmission resources; or,
  • the first terminal has data retransmission requirements, and the first terminal is configured with available data retransmission resources, and the available data retransmission resources cannot meet the transmission requirements of the retransmitted data.
  • the first sending module 31 is also used for at least one of the following:
  • the first BSR Used to send the first BSR to the base station, where the first BSR carries a process identifier for controlling the control process of retransmission data transmission, and the process identifier is used to instruct the base station to determine the retransmission data in the initial Data initial transmission resources allocated during transmission, and data retransmission resources are issued to the first terminal according to the data initial transmission resources;
  • the terminal sends data retransmission resources;
  • the first BSR It is used to send the first BSR to the base station, where the first BSR carries a level identifier for indicating the priority of the retransmitted data, and the level identifier is used to instruct the base station to send the data retransmission to the first terminal according to the priority of the retransmitted data.
  • Transfer resources
  • the first BSR Used to send the first BSR to the base station, where the first BSR carries a channel identifier for indicating the logical channel corresponding to the retransmitted data, and the channel identifier is used to instruct the base station to send the first terminal according to the logical channel corresponding to the retransmitted data Send data retransmission resources;
  • the first BSR Used to send the first BSR to the base station, where the first BSR carries a channel group identifier used to indicate the logical channel group corresponding to the retransmitted data, and the channel group identifier is used to indicate the base station according to the logical channel group corresponding to the retransmitted data Sending data retransmission resources to the first terminal;
  • the first BSR Used to send the first BSR to the base station, where the first BSR carries a first data volume identifier used to characterize the data volume of the retransmitted data, and the first data volume identifier is used to indicate the data volume corresponding to the retransmitted data by the base station Sending data retransmission resources to the first terminal;
  • the first terminal sends the data retransmission resource, and the data amount corresponding to the retransmitted data is determined by the first terminal according to the data amount of the retransmitted data when it is initially transmitted.
  • the device of this embodiment includes all the modules shown in FIG. 3, and also includes a fourth sending module, which is used to send the first terminal to the base station when the first request is the first BSR.
  • a fourth sending module which is used to send the first terminal to the base station when the first request is the first BSR.
  • send a first scheduling request SR to the base station where the first SR is used to request BSR transmission resources, where the BSR transmission resources are used to instruct the first terminal to send the first BSR to the base station.
  • the BSR transmission resource may include the BSR uplink grant.
  • the first sending module 31 of this embodiment is further configured to be triggered to send the first SR to the base station when one of the following conditions is met:
  • the first terminal There is retransmitted data on the first logical channel of the first terminal and the retransmitted data has a corresponding first BSR, and the first terminal is configured with available uplink grants, and according to the logical channel priority sorting rule LCP, the available uplink grants Can not meet the data transmission on the first logical channel; or,
  • the first terminal has a data retransmission requirement, but is not configured with an available through link sidelink authorization, or the first terminal is configured with an available sidelink authorization and the available sidelink authorization cannot meet the priority requirements corresponding to the retransmitted data.
  • the first sending module 31 of this embodiment is further configured to be triggered to send the second SR to the base station when one of the following situations is met when the first request is the second SR:
  • the first terminal has data retransmission requirements, and the first terminal is not configured with available data retransmission resources; or,
  • the first terminal has a data retransmission requirement, and the first terminal is configured with available data retransmission resources, and the available data retransmission resources cannot meet the transmission requirement of retransmitted data.
  • the first request carries a retransmission identifier for indicating that the retransmission data needs to be transmitted.
  • the retransmission identifier is located in the MAC CE subheader of the first BSR or is located in the content of the first BSR.
  • the retransmission identifier is the LCID in the MAC CE subheader of the first BSR, and the LCID value is Re- Transmission BSR.
  • the LCID value of Re-Transmission BSR can indicate that the first request is a BSR, or it can also indicate that it is a retransmission request for requesting retransmission of data.
  • the device of this embodiment also includes:
  • the first receiving module is configured to receive first signaling issued by the base station, where the first signaling indicates the retransmission logical channel configured by the base station for retransmission of data and the retransmission SR configuration;
  • the first transmission module is configured to transmit the retransmission data to the second terminal according to the retransmission logical channel and the retransmission SR configuration.
  • the apparatus of this embodiment further includes a fifth sending module, configured to send the direct link terminal information to the base station before the first terminal receives the first signaling issued by the base station, where the direct link
  • the terminal information indicates the status of the retransmission data
  • the direct link terminal information is used to instruct the base station to configure the retransmission logical channel and the retransmission SR configuration for the first terminal according to the received direct link terminal information, and indicate the retransmission logical channel
  • the retransmission SR configuration ID is used to characterize the SR configuration corresponding to the retransmission logical channel.
  • the apparatus of this embodiment further includes: a first configuration module, configured to configure a retransmission logical channel and a retransmission SR configuration for the retransmission data. After the configuration is completed, the first terminal uses the retransmission logical channel and The retransmission SR configuration transmits the retransmission data to the second terminal.
  • a first configuration module configured to configure a retransmission logical channel and a retransmission SR configuration for the retransmission data.
  • the apparatus of this embodiment further includes a second receiving module, configured to receive the SR issued by the base station before the first terminal transmits the retransmitted data to the second terminal using the retransmission logical channel and the retransmission SR configuration.
  • Configuration information and assign a retransmission SR configuration and a retransmission SR configuration ID to the retransmission logical channel according to the SR configuration information, where the retransmission SR configuration ID is used to characterize the retransmission SR configuration corresponding to the retransmission logical channel.
  • the first sending module 31 is further configured to continuously send two or more first requests to the base station, where the first terminal continuously sends two or more first requests to the base station to indicate The base station issues data retransmission resources to the first terminal.
  • each of the above modules can be implemented by software or hardware.
  • it can be implemented in the following manner, but not limited to this: the above modules are all located in the same processor; or, the above modules are combined in any combination The forms are located in different processors.
  • a method for sending data retransmission resources running on a base station is provided. It should be noted that the method in this embodiment can run on a base station, but it is not limited to this.
  • Fig. 4 is a flowchart of a method for sending data retransmission resources according to an embodiment of the present invention. As shown in Fig. 4, the process includes the following steps:
  • Step S402 Receive the first request sent by the first terminal.
  • Step S404 Send a data retransmission resource to the first terminal according to the first request, where the data retransmission resource is used to instruct the first terminal to send the retransmission data to the second terminal according to the data retransmission resource.
  • the first request is a first buffer status report BSR and/or a second scheduling request SR.
  • the first terminal when the first request is the first BSR, the first terminal is triggered to send the first BSR when one of the following situations is met:
  • the first terminal has data retransmission requirements, and the first terminal is not configured with available data retransmission resources; or,
  • the first terminal has data retransmission requirements, and the first terminal is configured with available data retransmission resources, and the available data retransmission resources cannot meet the transmission requirements of the retransmitted data.
  • sending data retransmission resources to the first terminal according to the first request includes at least one of the following:
  • the first terminal determines according to the data volume of the retransmitted data when it is initially transmitted.
  • the method when the first request is the first BSR, before receiving the first request sent by the first terminal, the method further includes:
  • the BSR transmission resource is delivered to the first terminal according to the first SR, where the BSR transmission resource is used to instruct the first terminal to send the first BSR.
  • the method further includes: when one of the following conditions is met, the first terminal is triggered to send the first SR:
  • the first terminal There is retransmitted data on the first logical channel of the first terminal and the retransmitted data has a corresponding first BSR, and the first terminal is configured with available uplink grants, and according to the logical channel priority sorting rule LCP, the available uplink grants Can not meet the data transmission on the first logical channel; or,
  • the first terminal has a data retransmission requirement, but is not configured with an available through link sidelink authorization, or the first terminal is configured with an available sidelink authorization and the available sidelink authorization cannot meet the priority requirements corresponding to the retransmitted data.
  • the method further includes:
  • the first terminal is triggered to send the second SR when one of the following situations is met:
  • the first terminal has data retransmission requirements, and the first terminal is not configured with available data retransmission resources; or,
  • the first terminal has a data retransmission requirement, and the first terminal is configured with available data retransmission resources, and the available data retransmission resources cannot meet the transmission requirement of retransmitted data.
  • the first request carries a retransmission identifier for indicating that the retransmission data needs to be transmitted.
  • the retransmission identifier when the first request is the first BSR, the retransmission identifier is located in the MAC CE subheader of the first BSR or is located in the content of the first BSR. In the case that the retransmission identifier is located in the MAC CE subheader of the first BSR, the retransmission identifier is the LCID in the MAC CE subheader of the first BSR, and the LCID value is Re- Transmission BSR.
  • the method further includes:
  • the first signaling is issued to the first terminal, where the first signaling indicates the retransmission logical channel configured for retransmission of data and the retransmission SR configuration, and the first signaling is used to instruct the first terminal to retransmit according to the The logical channel and the retransmission SR configuration transmit retransmission data to the second terminal.
  • the method before sending the first signaling to the first terminal, the method further includes:
  • the retransmission SR configuration ID is used to characterize the SR configuration corresponding to the retransmission logical channel.
  • the method further includes:
  • the first terminal uses the retransmission logical channel and the retransmission SR configuration to transmit the retransmission data to the second terminal, where the retransmission logical channel and the retransmission SR configuration are configured by the first terminal for the retransmission data.
  • the method before the first terminal uses the retransmission logical channel and the retransmission SR configuration to transmit the retransmission data to the second terminal, the method further includes:
  • the SR configuration information is used to instruct the first terminal to allocate the retransmission SR configuration and the retransmission SR configuration ID for the retransmission logical channel according to the SR configuration information, and the retransmission SR configuration ID is used for characterization The retransmission SR configuration corresponding to the retransmission logical channel.
  • receiving the first request sent by the first terminal, and the base station sending the data retransmission resource to the first terminal according to the first request further includes:
  • This embodiment also provides a device for sending data retransmission resources, which is used to implement the above-mentioned embodiments and optional implementation manners, and those that have been explained will not be repeated.
  • the term "module” can implement a combination of software and/or hardware with predetermined functions.
  • the devices described in the following embodiments are implemented by software, hardware or a combination of software and hardware is also possible and conceived.
  • Fig. 5 is a structural block diagram of a device for sending data retransmission resources according to an embodiment of the present invention. As shown in Fig. 5, the device includes:
  • the receiving module 51 is configured to receive the first request sent by the first terminal;
  • the third sending module 52 is configured to send data retransmission resources to the first terminal according to the first request, where the data retransmission resources are used to instruct the first terminal to send the retransmission data to the second terminal according to the data retransmission resources.
  • the first request is a first buffer status report BSR and/or a second scheduling request SR.
  • the first terminal when the first request is the first BSR, the first terminal is triggered to send the first BSR when one of the following situations is met:
  • the first terminal has data retransmission requirements, and the first terminal is not configured with available data retransmission resources; or,
  • the first terminal has data retransmission requirements, and the first terminal is configured with available data retransmission resources, and the available data retransmission resources cannot meet the transmission requirements of the retransmitted data.
  • sending data retransmission resources to the first terminal according to the first request includes at least one of the following:
  • the first terminal determines according to the data volume of the retransmitted data when it is initially transmitted.
  • the apparatus when the first request is the first BSR, before receiving the first request sent by the first terminal, the apparatus further includes:
  • the third receiving module is configured to receive the first scheduling request SR sent by the first terminal;
  • the sixth sending module is configured to issue a BSR transmission resource to the first terminal according to the first SR, where the BSR transmission resource is used to instruct the first terminal to send the first BSR.
  • the first terminal when one of the following conditions is met, the first terminal is triggered to send the first SR:
  • the first terminal There is retransmitted data on the first logical channel of the first terminal and the retransmitted data has a corresponding first BSR, and the first terminal is configured with available uplink grants, and according to the logical channel priority sorting rule LCP, the available uplink grants Can not meet the data transmission on the first logical channel; or,
  • the first terminal has a data retransmission requirement, but is not configured with an available through link sidelink authorization, or the first terminal is configured with an available sidelink authorization and the available sidelink authorization cannot meet the priority requirements corresponding to the retransmitted data.
  • the first terminal when the first request is the second SR, the first terminal is triggered to send the second SR when one of the following situations is met:
  • the first terminal has data retransmission requirements, and the first terminal is not configured with available data retransmission resources; or,
  • the first terminal has a data retransmission requirement, and the first terminal is configured with available data retransmission resources, and the available data retransmission resources cannot meet the transmission requirement of retransmitted data.
  • the first request carries a retransmission identifier for indicating that the retransmission data needs to be transmitted.
  • the retransmission identifier is located in the MAC CE subheader of the first BSR or is located in the content of the first BSR.
  • the retransmission identifier is the LCID in the MAC CE subheader of the first BSR, and the LCID value is Re- Transmission BSR.
  • the device further includes:
  • the seventh sending module is used to send first signaling to the first terminal, where the first signaling indicates the retransmission logical channel configured for retransmission of data and the retransmission SR configuration, and the first signaling is used for Instruct the first terminal to transmit the retransmitted data to the second terminal according to the retransmission logical channel and the retransmission SR configuration.
  • the device further includes:
  • the second configuration module is used to configure the retransmission logical channel and retransmission SR configuration for the first terminal according to the received direct link terminal information sent by the first terminal before sending the first signaling to the first terminal, and To indicate the retransmission SR configuration ID for the retransmission logical channel, wherein the through link terminal information indicates the status of the retransmission data, and the retransmission SR configuration ID is used to characterize the SR configuration corresponding to the retransmission logical channel.
  • the first terminal transmits the retransmission data to the second terminal by using the retransmission logical channel and the retransmission SR configuration, where the retransmission logical channel and the retransmission SR configuration are configured by the first terminal for the retransmission data.
  • the device further includes: an eighth sending module, configured to send the SR configuration to the first terminal before the first terminal uses the retransmission logical channel and the retransmission SR configuration to transmit the retransmission data to the second terminal
  • the SR configuration information is used to instruct the first terminal to allocate the retransmission SR configuration and retransmission SR configuration ID for the retransmission logical channel according to the SR configuration information, and the retransmission SR configuration ID is used to characterize the retransmission logical channel corresponding to the retransmission.
  • Pass SR configuration configured to send the SR configuration to the first terminal before the first terminal uses the retransmission logical channel and the retransmission SR configuration to transmit the retransmission data to the second terminal
  • the SR configuration information is used to instruct the first terminal to allocate the retransmission SR configuration and retransmission SR configuration ID for the retransmission logical channel according to the SR configuration information
  • the retransmission SR configuration ID is used to characterize the
  • the receiving module 51 is further configured to continuously receive two or more first requests sent by the first terminal; the third sending module 52 is also configured to continuously receive two or more first requests A request to send data retransmission resources to the first terminal.
  • each of the above modules can be implemented by software or hardware.
  • it can be implemented in the following manner, but not limited to this: the above modules are all located in the same processor; or, the above modules are combined in any The forms are located in different processors.
  • An embodiment of the present invention also provides a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.
  • the foregoing storage medium may be configured to store a computer program for executing the following steps:
  • the first terminal sends a first request to the base station, where the first request is used to instruct the base station to send data retransmission resources to the first terminal according to the first request.
  • the first terminal After receiving the data retransmission resource, the first terminal sends the retransmitted data to the second terminal according to the data retransmission resource.
  • the storage medium is further configured to store a computer program for executing any step in the embodiment of the method for sending retransmitted data, which is not repeated here.
  • An embodiment of the present invention also provides a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.
  • the foregoing storage medium may be configured to store a computer program for executing the following steps:
  • S2 Send a data retransmission resource to the first terminal according to the first request, where the data retransmission resource is used to instruct the first terminal to send the retransmission data to the second terminal according to the data retransmission resource.
  • the storage medium is further configured to store a computer program used to execute any step in the embodiment of the method for sending a data retransmission resource, which is not repeated here.
  • the above-mentioned storage medium may include, but is not limited to: Universal Serial Bus flash disk (Universal Serial Bus flash disk, U disk), Read-Only Memory (Read-Only Memory, ROM for short), Random Access Memory (RAM for short), mobile hard disks, magnetic disks or optical disks and other media that can store computer programs.
  • Universal Serial Bus flash disk Universal Serial Bus flash disk, U disk
  • Read-Only Memory Read-Only Memory
  • RAM Random Access Memory
  • mobile hard disks magnetic disks or optical disks and other media that can store computer programs.
  • An embodiment of the present invention also provides an electronic device, including a memory and a processor, the memory is stored with a computer program, and the processor is configured to run the computer program to execute the steps in any of the foregoing method embodiments.
  • the aforementioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the aforementioned processor, and the input-output device is connected to the aforementioned processor.
  • the foregoing processor may be configured to execute the following steps through a computer program:
  • the first terminal sends a first request to the base station, where the first request is used to instruct the base station to send data retransmission resources to the first terminal according to the first request.
  • the first terminal After receiving the data retransmission resource, the first terminal sends the retransmitted data to the second terminal according to the data retransmission resource.
  • An embodiment of the present invention also provides an electronic device, including a memory and a processor, the memory is stored with a computer program, and the processor is configured to run the computer program to execute the steps in any of the foregoing method embodiments.
  • the aforementioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the aforementioned processor, and the input-output device is connected to the aforementioned processor.
  • the foregoing processor may be configured to execute the following steps through a computer program:
  • S2 Send a data retransmission resource to the first terminal according to the first request, where the data retransmission resource is used to instruct the first terminal to send the retransmission data to the second terminal according to the data retransmission resource.
  • the method for the terminal to request initial transmission/retransmission resources is as follows: First, the MAC layer of the terminal buffers the data transmitted by the higher layer in each logical channel. If the buffered data in the current logical channel is not authorized to be sent through the available direct link, the terminal will trigger the report of the buffer status report (Buffer Status Report, BSR for short). By reporting the BSR, the base station can determine the direct link available to the terminal The sidelink grant is allocated to the corresponding terminal. In addition, since the reporting of the BSR also requires a corresponding uplink grant (uplink grant), if there is no available uplink grant, the terminal will trigger a scheduling request (Scheduling Request, referred to as SR). Among them, the authorization can be allocated to multiple logical channels, or can be said to be allocated to the terminal.
  • the terminal In LTE technology, usually the terminal will only be configured with one SR resource/SR configuration, but with the evolution of communication technology, in the fifth-generation communication technology, in the enhanced Mobile Broadband (eMBB) scenario, the base station can Configure different SR resources/SR configurations for different logical channels of the terminal.
  • eMBB enhanced Mobile Broadband
  • the format of the sidelink BSR is defined as shown in Figure 6.
  • the destination index is serialized by a frequency and a corresponding destination ID list (Destination Information List) Obtained, the corresponding relationship is reported by the UE to the base station through Radio Resource Control (RRC) signaling in advance.
  • RRC Radio Resource Control
  • a Destination index can indicate a frequency point and a Destination ID. It should be noted that the Destination index is obtained after serializing the mapping relationship between the Destination ID and the frequency point.
  • Destination ID can be understood as indicating the UE service type, or indicating a communication group, or indicating the target terminal. For a Destination ID, there are usually multiple associated logical channels with cached data to be sent.
  • the data of a service is passed down by the higher layer, because there are multiple priority relationships in the data (such as video services, which can be detailed Divided into audio and image), different priority data will be allocated to different logical channels.
  • the priority corresponding to each logical channel is different, but logical channels with similar priority are divided into a logical channel group (Logical Channel Group (LCG)) and have the same LCG ID.
  • the buffer size (Buffer Size) is obtained by accumulating buffer data on each logical channel in a logical channel group.
  • Buffer Size can be understood as the amount of resources the terminal hopes to request from the base station, and the specific calculation method is that the terminal obtains by accumulating the data buffer size on each logical channel in the logical channel group.
  • BSR is a type of MAC Control Element.
  • PDU MAC protocol data unit
  • the MAC layer has multiple control elements, BSR is one of them, and the type of control element is indicated by the LCID field on the MAC header.
  • a MAC sub-protocol data unit includes a MAC CE and a MAC subheader (subheader). In the MAC subheader, there is an R field and an LCID field.
  • MAC CE When MAC CE is a variable length When, there will be F domains.
  • the type of MAC CE is indicated by the LCID field. Among them, different types of MAC CE have a specific LCID indication, and the base station reads the value of the LCID to determine the type of MAC CE sent by the terminal.
  • the terminal will create a sidelink process (sidelink process) based on the frequency, Destination ID, and data priority relationship, which will be used for subsequent carrier selection, logical channel priority sorting, MAC PDU assembly, and data packet Initial transmission and retransmission.
  • sidelink process sidelink process
  • the terminal After the sidelink process is created and the direct link authorization issued by the base station is received, the terminal will sort the logical channel priority. It should be noted that in an implementation manner, it is necessary to ensure that the data on the highest priority logical channel can be sent, but after the data on the highest priority is sent, there are still resources remaining, and the next highest priority can be sent together. Data on the logical channel, and so on, to assemble MAC PDU. Specifically, the terminal will first determine the Destination ID corresponding to the data buffered by the logical channel with the highest priority currently, and determine the corresponding transmission format (transmission format) to send. Through the Destination ID, the terminal can determine what transmission format to use. For example, is it R14 or R15?
  • the data buffer on the logical channel with the highest priority is placed on the sidelink authorization allocated by the base station. If the grant still has surplus that is not fully used, but there are still remaining data buffers on other logical channels, then the priority of the logical channels should be sorted from high to low, and the data buffers on each logical channel should be placed on the sidelink grant in turn Until the sidelink authorization is completely used or there is no data buffer on the logical channel, a MAC PDU is generated.
  • a new SR trigger condition is defined:
  • the SR is triggered when the BSR is sent, or when the retransmission data is to be sent, the SR can be directly triggered to obtain the data retransmission resource, and there is no need to send the BSR:
  • the terminal when the terminal has retransmitted data on a certain logical channel and the retransmitted data has a corresponding BSR, and the terminal is configured with a sidelink configured grant (a special authorization), but the base station is
  • the SR of the sidelink logical channel is configured with SR masking (logicalChannelSR-Mask) and set to FALSE, which means that the terminal needs to trigger the SR to request the uplink authorization to satisfy the transmission of the BSR.
  • this uplink grant cannot satisfy the data transmission on this logical channel, at this time the terminal needs to trigger the SR corresponding to this logical channel.
  • LCP logical channel priority ordering rules
  • the above-mentioned terminal having a corresponding BSR on a certain logical channel may refer to the existence of retransmission data to be sent on a certain logical channel, which means that the terminal has a demand for retransmission of data, so in this embodiment , The terminal may need to send a BSR to the base station to request data retransmission resources for retransmission of data, such as sidelink authorization, which means that the terminal may have a BSR to be sent to the base station.
  • the base station configures different logical channels for the retransmission data and the normal initial transmission data. Specifically, the base station can configure multiple sets of SRs (Scheduling Request Config) for the terminal, and at the same time, the base station creates multiple logics for the terminal based on the service status contained in the sidelink UE Information reported by the terminal The channel also indicates the SR configuration ID (Scheduling Request ID) corresponding to each logical channel, and the base station will configure the configuration information to the terminal through RRC signaling.
  • SRs Service Request Config
  • the channel also indicates the SR configuration ID (Scheduling Request ID) corresponding to each logical channel, and the base station will configure the configuration information to the terminal through RRC signaling.
  • the base station can configure multiple sub Carrier spacing/Physical Sidelink Share Channel (PSSCH) duration/Bandwidth part (BWP) resources, corresponding to the delay requirements of different data, if the current sidelink authorization cannot meet the transmission of retransmitted data Time delay, the terminal needs to trigger the SR to request sidelink authorization to send the retransmitted data.
  • PSSCH Physical Sidelink Share Channel
  • BWP Bandwidth part
  • the base station can configure multiple sub Carrier spacing/PSSCH duration/BWP resources correspond to the delay requirements of different data. If the current sidelink authorization cannot meet the transmission delay of the retransmitted data, the terminal needs to trigger an SR to request the BSR.
  • the base station can configure multiple sets of SRs (Scheduling Request Config) for the terminal.
  • the base station creates multiple logical channels for the terminal according to the Destination ID information corresponding to the multiple services contained in the sidelink UE Information reported by the terminal, and indicates each The SR configuration ID (Scheduling Request ID) corresponding to the logical channel, the base station will configure the configuration information to the terminal through RRC signaling.
  • the terminal selects a specific logical channel for transmission according to the quality of service (QoS) characteristics of the service, and correspondingly, the terminal needs to select an SR corresponding to the logical channel configuration for resource request.
  • QoS quality of service
  • the base station when the terminal has a retransmission requirement, but is not configured with available sidelink authorization, or the sideink authorization cannot meet the priority requirements corresponding to the retransmission data, specifically, the base station can configure multiple sub The carrier interval/PSSCH duration/BWP resources correspond to the delay requirements of different data. If the current sidelink authorization cannot meet the transmission delay of the retransmitted data, the terminal needs to trigger the BSR to request the sidelink authorization to send the retransmitted data.
  • the base station can configure multiple sub The carrier interval/PSSCH duration/BWP resources correspond to the delay requirements of different data. If the current sidelink authorization cannot meet the transmission delay of the retransmitted data, the terminal needs to trigger a retransmission BSR to request the sidelink authorization to retransmit the data send.
  • the embodiment of the present invention may reuse the BSR format in related technologies.
  • the terminal when the terminal has a retransmission requirement, the terminal optionally uses the BSR format in the related technology to report, but the filling content is the same as the BSR filling information reported when applying for the initial transmission resource, and Since the retransmission BSR and the normal BSR are not distinguished, the terminal can use the long BSR format to combine to generate a MAC CE.
  • the base station receives a retransmission BSR report, it will compare it with the previous BSR reported by the terminal. If the base station finds that the terminal has continuously reported two identical BSRs, the base station will think that the terminal is requesting retransmission resources. , The base station will allocate corresponding retransmission resources for the terminal according to the request of the terminal.
  • the base station may also allocate a sidelink authorization for the terminal to satisfy the newly transmitted data.
  • the terminal when the terminal has a retransmission requirement, the terminal still generates the BSR according to the resource request mechanism in the related technology. Specifically, the terminal uses the same Destination Index and logical channel group identifier (Logic Channel Group ID) as the initial transmission. Group Identifier, LCG ID), but the terminal needs to recalculate the buffer size according to the current data buffer in each logical channel (because new data may be generated); or the terminal will change the data in the corresponding logical channel after the initial transmission is completed After being cleared, but new data will be generated after clearing, the terminal needs to add the new data generated by each logical channel to the data buffer size of the previously cleared part to obtain an approximate buffer size to request the BSR.
  • LCG ID Destination Index and logical channel group identifier
  • the embodiment of the present invention defines a new BSR MAC CE type:
  • a new MAC CE type can also be defined, dedicated to the BSR request for retransmission of resources.
  • the MAC subheader corresponding to the MAC CE has an LCID field, and the LCID value can indicate different
  • Table 1 The types of MAC CE are shown in Table 1 below:
  • a reserved (selected within 33-51) LCID index can be used to indicate the BSR MAC CE dedicated to the retransmission resource request.
  • the terminal needs to perform a normal BSR request and a BSR request for dedicated retransmission resources at the same time, it needs to use multiple MAC CEs to send.
  • the base station After obtaining this information, the base station can distinguish the ordinary BSR requested by the terminal for the initial data transmission and the retransmitted BSR requested for the retransmission of the data through different LCID values.
  • the BSR may include the indication information of the Process ID: the terminal indicates the MAC CE as a retransmission BSR in the LCID field of the MAC header, and includes the Process ID corresponding to the required retransmission data in the retransmission BSR.
  • this process ID information terminal can be obtained from the corresponding downlink control information (Downlink Control Information, DCI) when the base station issues a sidelink grant.
  • DCI Downlink Control Information
  • the base station obtains the MAC CE, it can determine that the terminal is requesting retransmission resources.
  • the base station can know the sidelink process corresponding to the retransmission resource requested by the terminal. Based on this information, the base station can refer to the previous method of allocating initial transmission resources on this sidelink process to reasonably allocate retransmission resources to the terminal.
  • the BSR may contain indication information of Destination ID: used to indicate the Prose Destination corresponding to the high-level service or the target address of the terminal for link-through communication, which may specifically point to the target terminal or target group.
  • the BSR may contain indication information of Frequency: if the network side configures multiple frequency points for the terminal, it is used to indicate the frequency point on which the terminal wishes to request sidelink initial transmission or sidelink retransmission resources.
  • the BSR may contain the indication information of the LCG ID: for the initial transmission resource request, it indicates the logical channel group corresponding to the requested resource; for the retransmission resource request, a dedicated LCG ID value can be used to indicate For example, the base station can configure when the LCG ID is 000, the terminal reports the BSR to request retransmission of data.
  • the BSR may contain the indication information of Buffer Size: for the initial transmission resource request, the sum of the corresponding data buffer sizes on a group of logical channels included in the LCG of the corresponding Destination ID; for retransmission resources Request, the terminal estimates and indicates the size of the resource required for retransmission of data through the size of the MAC PDU generated before the initial transmission.
  • the BSR may include initial transmission/retransmission indication information:
  • the 1-bit indication information is used to indicate whether the initial transmission resource request or the retransmission resource request is currently being performed.
  • the 1-bit indication information is used to indicate whether the initial transmission resource request or the retransmission resource request is currently being performed.
  • the base station After receiving the above BSR request, the base station can determine which Prose Destination the terminal is for high-level services by reading the Destination ID information, or which target terminal or target communication group the terminal is requesting resources for.
  • By reading frequency information you can determine which frequency resource the terminal wants to request.
  • By reading the information of LCG ID you can determine the priority of the resource that the terminal wants to request.
  • By reading the buffer size information you can Determine how much resources the terminal wants to request.
  • the base station By reading the information of the initial transmission/retransmission indication, it can be determined that the terminal wants to request initial transmission or retransmission resources. Based on the above information, the base station can reasonably allocate the initial transmission to the terminal Or retransmit resources.
  • the base station may configure the channel busy rate (Channel Busy Rate, CBR) measurement time length.
  • CBR Channel Busy Rate
  • the terminal In LTE vehicle networking communication (Vehicle to Everything, V2X), the terminal continuously performs CBR measurement in 100 subframes and calculates the CBR measurement value of the current resource pool (average calculation).
  • V2X Vehicle to Everything
  • the terminal supports the use of multiple numerology resources for data transmission. Specifically, when the terminal needs to transmit services with high latency requirements, it can use resources with a small subcarrier spacing.
  • the terminal needs to transmit latency-sensitive services (Ultra Reliable Low Latency) Communications, URLLC) services)
  • URLLC Latency-sensitive services
  • the cycle of the URLLC service is very short.
  • the base station can consider using the following methods to configure the CBR measurement duration of different resource pools for the terminal:
  • the base station/pre-configuration uses different resource pool indexes, and directly configures the CBR measurement duration for different resource pools:
  • the corresponding CBR measurement duration unit may be milliseconds, subframes, or time slots.
  • the terminal needs to measure the CBR conditions on all configured resource pools.
  • the terminal can use the resource pool on the LTE carrier and the resource pool on the NR carrier.
  • multiple resource pools may be configured on the same carrier. Therefore, the number of resource pools configured for the terminal may be greater. From the perspective of power connection, if the terminal is allowed to perform CBR measurement on all configured resource pools, it will greatly consume the power of the terminal. Therefore, the base station can be considered to enable the terminal to perform CBR measurement, specifically:
  • an enable switch is added.
  • the terminal When the terminal is enabled, it can be considered that the terminal needs to perform CBR measurement on all configured resource pools; when the terminal is disabled, you can It is considered that the terminal does not need to perform CBR measurement on any configured resource pool.
  • RRC dedicated configuration In the dedicated configuration of the base station to the terminal (RRC dedicated configuration), an enable switch is added for each configured resource pool, and the terminal needs to perform CBR measurement on each enabled resource pool.
  • the terminal performs CBR measurement on the resource pool consistent with the current service cast type according to the communication type (cast type) corresponding to the resource pool configured by the base station and the cast type corresponding to its own service.
  • the base station separately configures a measurement resource pool list, and the terminal needs to perform CBR measurement on all resource pools in this list.
  • the terminal When an NR V2X terminal is under the coverage of an NR base station, when the terminal needs to perform a CBR measurement report, the terminal needs to indicate clearly the resource pool on the NR carrier and the LTE carrier in the MeasObjectNR cell.
  • the following signaling can be used to indicate:
  • tx-ResourcePoolToRemoveList-r14 and tx-ResourcePoolToAddList-r14 are used to indicate the addition and deletion of resource pools on the LTE carrier;
  • tx-ResourcePoolNRToRemoveList-r16 tx-ResourcePoolNRToAddList-r16 are used to indicate the addition and deletion of resource pools on the NR carrier.
  • the terminal When the NR V2X terminal is under the coverage of the LTE base station, when the terminal needs to perform CBR measurement report, the terminal needs to indicate clearly the resource pool on the NR carrier and the LTE carrier in the MeasObjectEUTRA cell.
  • the following signaling can be used to indicate:
  • tx-ResourcePoolToRemoveList-r14 and tx-ResourcePoolToAddList-r14 are used to indicate the addition and deletion of resource pools on the LTE carrier;
  • tx-ResourcePoolNRToRemoveList-r16 tx-ResourcePoolNRToAddList-r16 are used to indicate the addition and deletion of resource pools on the NR carrier.
  • modules or steps of the present disclosure can be implemented by a general computing device, and they can be concentrated on a single computing device or distributed in a network composed of multiple computing devices.
  • they can be implemented with program codes executable by the computing device, so that they can be stored in the storage device for execution by the computing device, and in some cases, can be executed in a different order than here.

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Abstract

La présente invention concerne un procédé d'envoi de données retransmises, un procédé et un dispositif d'envoi de ressources de retransmission de données, un support d'informations et un dispositif électronique. Le procédé d'envoi de données retransmises comprend les étapes suivantes : un premier terminal envoie une première requête à une station de base, la première requête étant utilisée pour indiquer à la station de base d'envoyer des ressources de retransmission de données au premier terminal selon la première requête ; après réception des ressources de retransmission de données, le premier terminal envoie les données retransmises au second terminal selon les ressources de retransmission de données.
PCT/CN2020/080552 2019-03-28 2020-03-23 Procédé d'envoi de données retransmises, procédé et dispositif d'envoi de ressources de retransmission de données, support d'informations et dispositif électronique WO2020192602A1 (fr)

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