WO2024032455A1 - Procédé et appareil de sélection de ressources, et terminal - Google Patents

Procédé et appareil de sélection de ressources, et terminal Download PDF

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Publication number
WO2024032455A1
WO2024032455A1 PCT/CN2023/110938 CN2023110938W WO2024032455A1 WO 2024032455 A1 WO2024032455 A1 WO 2024032455A1 CN 2023110938 W CN2023110938 W CN 2023110938W WO 2024032455 A1 WO2024032455 A1 WO 2024032455A1
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WIPO (PCT)
Prior art keywords
terminal
resource
resources
preset
frequency domain
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PCT/CN2023/110938
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English (en)
Chinese (zh)
Inventor
黎建辉
梁敬
肖潇
纪子超
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维沃移动通信有限公司
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Publication of WO2024032455A1 publication Critical patent/WO2024032455A1/fr

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Classifications

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

Definitions

  • the present application belongs to the field of wireless communication technology, and specifically relates to a resource selection method, device and terminal.
  • unlicensed bands can be used as a supplement to licensed bands to help operators expand services.
  • unlicensed frequency bands can operate in the 5GHz, 37GHz and 60GHz frequency bands.
  • the large bandwidth (80MHz or 100MHz) of the unlicensed frequency band can reduce the implementation complexity of base stations and terminals (User Equipment, UE).
  • the unlicensed frequency band is shared by multiple wireless access technologies (Radio Access Technology, RAT), such as WiFi, radar, Long Term Evolution (LTE) licensed spectrum assisted access (License-Assisted Access, LAA), etc., therefore In some countries or regions, the use of unlicensed frequency bands must comply with regulations to ensure that all devices can use the resource fairly, such as listen before talk (LBT), maximum channel occupancy time (maximum channel occupancy time, MCOT) and other rules.
  • LBT listen before talk
  • maximum channel occupancy time maximum channel occupancy time
  • MCOT maximum channel occupancy time
  • the transmission node needs to send information, it needs to perform LBT first, and performs power detection (ED) on the surrounding nodes. When the detected power is lower than a threshold, the channel is considered to be empty (idle), and the transmission node can to send.
  • the transmission node can be a base station, UE, WiFi AP, etc. After the transmission node starts transmitting, the occupied channel time COT cannot exceed MCOT. In addition, according to occupied channel bandwidth (OCB) regulation, in the unlicensed frequency band, the transmission node must occupy at least 70% (60GHz) or 80% (5GHz) of the entire frequency band during each transmission.
  • OCB occupied channel bandwidth
  • Type2 also includes Type2A, Type2B and Type2C.
  • Type1LBT is a channel listening mechanism based on back-off. When the transmission node detects that the channel is busy, it backs off and continues listening until it detects that the channel is empty.
  • Type2C means that the sending node does not perform LBT, that is, no LBT or immediate transmission.
  • Type2, Type2A and Type2B LBT are one-shot LBT, that is, the node performs LBT once before transmission. If the channel is empty, it will transmit, and if the channel is busy, it will not transmit.
  • a base station for example, an evolved Node B (eNB)/the next Generation Node B (gNB)
  • eNB/gNB/UE can access through the channel
  • the priority class (Channel access priority class, CAPC) determines a maximum channel occupancy time (Channel Occupancy Time, COT).
  • COT Channel occupancy time
  • the eNB/gNB accesses the channel through the Type 1 channel access method and obtains the CO
  • it can instruct the UE to share this channel occupancy (Channel Occupancy, CO) with itself, which is called COT sharing (sharing).
  • COT sharing sharing
  • the UE accesses the channel through the Type1 channel access method and obtains the CO
  • it can instruct the eNB/gNB to share this CO with itself, which is also called COT sharing.
  • SL sidelink
  • sidelink also called secondary link, side link or side link, etc.
  • the terminal can receive the resources shared by the opposite terminal.
  • SL also called secondary link, side link or side link, etc.
  • Embodiments of the present application provide a resource selection method, device and terminal, which can solve the problem of how the terminal selects resources when it receives resources shared by the opposite terminal.
  • a resource selection method including: a first terminal receiving resource indication information sent by a second terminal, wherein the resource indication information is used to indicate time-frequency domain resources shared by the second terminal; The first terminal selects resources for side-link transmission with the second terminal based on the interval between the first time domain position and the second time domain position; wherein the first time domain position is for receiving the The time domain position of the resource indication information, the second time domain position is the time domain position of the time-frequency domain resource indicated by the resource indication information.
  • a resource selection device including: a receiving module configured to receive resource indication information sent by a second terminal, wherein the resource indication information is used to indicate a time-frequency domain shared by the second terminal. Resources; a selection module configured to select resources for side-link transmission with the second terminal based on the interval between the first time domain position and the second time domain position; wherein the first time domain position is a receiving The time domain position of the resource indication information, the second time domain position is the time domain position of the time-frequency domain resource indicated by the resource indication information.
  • a data transmission method including: a first terminal generates a transmission block TB to be transmitted; after obtaining available side link resources, the first terminal generates a transmission block TB based on the available side link resources. , transfer the TB.
  • a data transmission device including: a first generation module for generating a transmission block TB to be transmitted; a first transmission module for, after obtaining available side link resources, based on the Available side-link resources to transmit the TB.
  • a resource selection method including: the first terminal determines whether it receives resource indication information sent by the second terminal, wherein the resource indication information is used to indicate the time and frequency shared by the second terminal. domain resources; the first terminal performs one of the following according to the judgment result: selects part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal; selects the physical layer indication of the first terminal Select some or all of the resources in the first resource set to perform side-link transmission with the second terminal; select some or all of the resources in the second resource set recommended by the second terminal to perform side-link transmission with the second terminal. road transmission.
  • a resource selection device including: a determination module configured to determine whether resource indication information sent by a second terminal is received, wherein the resource indication information is used to indicate that the resource indication information shared by the second terminal is received. time-frequency domain resources; an execution module configured to perform one of the following according to the judgment result: select part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal; select the first resource set indicated by the physical layer Select some or all of the resources in the second resource set recommended by the second terminal to perform side-link transmission with the second terminal; select some or all of the resources in the second resource set recommended by the second terminal to perform side-link transmission with the second terminal.
  • a terminal in a seventh aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions When the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect, or the steps of implementing the method described in the third aspect, or the steps of the method described in the fifth aspect.
  • An eighth aspect provides a terminal, including a processor and a communication interface, wherein the processor is configured to implement the steps of the method described in the first aspect, or implement the steps of the method described in the third aspect, or To implement the method as described in the fifth aspect, the communication interface is used to communicate with an external device.
  • a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented as described in the first aspect. The steps of the method described in the third aspect, or the steps of implementing the method described in the fifth aspect.
  • a chip in a tenth aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. steps, or steps to implement the method described in the third aspect, or steps to implement the method described in the fifth aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the first aspect
  • the first terminal when the first terminal receives the resource indication information indicating the time-frequency domain resources shared by the second terminal, the first terminal may receive the resource indication information based on the time domain location and the time domain location indicated by the resource indication information. interval between the two terminals, the resources for side-link transmission with the second terminal are selected, thereby enabling the terminal to select resources when receiving resources shared by the opposite terminal during side-link transmission.
  • Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable
  • Figure 2 shows a schematic flow chart of the resource selection method provided by the embodiment of the present application
  • FIG. 3 shows another schematic flowchart of the resource selection method provided by the embodiment of the present application.
  • FIG. 4 shows another schematic flowchart of the resource selection method provided by the embodiment of the present application.
  • Figure 5 shows a schematic flow chart of the data transmission method provided by the embodiment of the present application.
  • Figure 6 shows another schematic flowchart of the resource selection method provided by the embodiment of the present application.
  • Figure 7 shows a schematic structural diagram of a resource selection device provided by an embodiment of the present application.
  • Figure 8 shows a schematic structural diagram of a data transmission device provided by an embodiment of the present application.
  • Figure 9 shows a schematic structural diagram of a resource selection device provided by an embodiment of the present application.
  • Figure 10 shows a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 11 shows a schematic diagram of the hardware structure of a terminal provided by an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a relay terminal 11, a network side device 12 and a remote terminal 13.
  • the remote terminal 13 communicates with the relay terminal 11 through the PC5 (secondary link) interface
  • the relay terminal 11 communicates with the network side device 12 through the Uu interface.
  • the relay terminal 11 may also be called a relay terminal device or a relay user terminal (User Equipment, UE), and the remote terminal 13 may also be called a remote terminal device or a remote UE.
  • the relay terminal 11 and the remote terminal 13 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, Ultra-mobile personal computer (UMPC), Mobile Internet Device (MID), Wearable Device (Wearable Device) or Vehicle User Equipment (VUE), Pedestrian User Equipment (Pedestrian User Equipment) , PUE) and so on.
  • UMPC Ultra-mobile personal computer
  • MID Mobile Internet Device
  • Wearable Device Wearable Device
  • VUE Vehicle User Equipment
  • Pedestrian User Equipment Pedestrian User Equipment
  • the network side device 12 may be a base station or a core network, where the base station may be called a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, or a basic service Basic Service Set (BSS), Extended Service Set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, Wireless Local Area Network (WLAN) ) access point, WiFi node, Transmitting Receiving Point (TRP) or some other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It needs to be explained that , in the embodiment of this application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • Figure 2 shows a schematic flowchart of a resource selection method in an embodiment of the present application.
  • the method 200 can be executed by the first terminal.
  • the method may be performed by software or hardware installed on the first terminal.
  • the method may include the following steps.
  • the first terminal receives resource indication information sent by the second terminal, where the resource indication information is used to indicate time-frequency domain resources shared by the second terminal.
  • the second terminal can access the channel through the Type1 channel access method and obtain the CO, or after obtaining the COT shared by the base station, it can transmit uplink control information (Uplink Control Information) through autonomous uplink transmission (Autonomous UpLink, AUL).
  • uplink Control Information Uplink Control Information
  • Autonomous UpLink AUL
  • UCI User Control Information
  • configured authorization UCI Configured Grant UCI, CG-UCI
  • the initiator UE that is, the second terminal is: In the sidelink on Unlicensed band (SL-U) COT sharing relationship of an unlicensed frequency band, it indicates that the opposite end UE or other UEs can use the COT shared by itself.
  • SL-U sidelink on Unlicensed band
  • the first terminal can be called a shared COT UE (COT-shared UE), that is, the first terminal is a UE that receives COT sharing information from a COT-sharing UE in a SL-U COT sharing relationship.
  • the indication information indicates that the COT-shared UE can use a shared COT based on the COT sharing information in the indication information.
  • COT-shared UE only refers to the UE that receives COT sharing information and is not equivalent to "the UE that uses shared COT”; in other scenarios, COT-shared UE refers to "UE using shared COT”. At this time, COT-shared UE can also be called response UE. The specific meaning of COT-share UE needs to be understood according to each embodiment.
  • the shared COT refers to a section of COT shared by the COT-sharing UE to the COT-shared UE. It can also be called the remaining CO (remaining CO), or remaining COT, or other A name that expresses this meaning.
  • COT sharing grant refers to understanding the shared COT resource indicated by COT sharing information as a grant, which is called COT sharing grant.
  • the resource indication information used to indicate the time-frequency domain resources shared by the second terminal may also be called COT sharing information (COT sharing information).
  • the first terminal selects a resource for side link transmission with the second terminal based on the interval between the first time domain position and the second time domain position.
  • the first time domain position is the time domain position at which the resource indication information is received
  • the second time domain position is the time domain position of the time-frequency domain resource indicated by the resource indication information.
  • the first time domain location may be side link control information (Sidelink Control Information, SCI) indicating the resource indication information and/or medium access control (Medium Access Control, MAC) control element (Control Element, CE) time domain position.
  • SCI Sidelink Control Information
  • MAC Medium Access Control
  • CE Control Element
  • the terminal can select resources for side link transmission with the second terminal based on the interval between the first time domain location and the second time domain location, so that it can When receiving time-frequency domain resources shared by the second terminal, resource selection is implemented.
  • the UE When the UE uses SL technology in the licensed frequency band, it can use SCI and/or MAC CE to provide recommended resources (preferred resources) or not to the opposite end UE in SL communication through Inter-UE Coordination (IUC) technology. Resources (non-preferred resources). If the opposite end UE receives the IUC MAC CE in slot n, the resource indicated by the IUC MAC CE can be used in slot n+x at the earliest.
  • the method of selecting resources may be determined based on the interval between the first time domain position and the second time domain position.
  • S220 may include: S221, when the interval between the first time domain position and the second time domain position is less than a first threshold, the The first terminal performs a first selection operation, wherein the first selection operation includes at least one of the following:
  • the physical layer of the first terminal reports the time-frequency domain resources to the MAC layer of the first terminal.
  • the physical layer (PHY) of the first terminal reports the resources indicated by the COT sharing information to the MAC layer.
  • the first terminal may be processing After resource indication information, it may If the time-frequency domain resource cannot be used, in order to ensure successful transmission of data, the first terminal may choose not to use the time-frequency domain resource indicated by the resource indication information for side link transmission.
  • the first terminal may be unable to use the time and frequency domain resources after processing the resource indication information.
  • the first terminal may select the first resource indicated by the physical layer. Concentrate resources for side link transmission.
  • the second terminal which can be called the recommended resource set (preferred resource set)
  • the first terminal may be unable to use the time-frequency domain resources after processing the resource indication information.
  • the first terminal may use the resources in the second resource set recommended by the second terminal.
  • Side link transmission can also enable the resources selected by the first terminal to meet the requirements of the second terminal.
  • the second terminal may indicate the set of resources that the second terminal recommends or does not recommend through the IUC message.
  • the first terminal may not be able to use the time and frequency domain resources after processing the resource indication information.
  • the first terminal Side-link transmission can be performed between the second resource set recommended by the second terminal and the first resource set indicated by the physical layer of the first terminal, thereby ensuring successful transmission of data and enabling the resources selected by the first terminal to be used. Meet the requirements of the first terminal and the second terminal.
  • the first side link information may include at least one of the following:
  • PSSCH Physical SideLink Shared Channel
  • PSBCH Physical SideLink Broadcast Channel
  • S-SSB ⁇ SideLink Synchronization Signal Block
  • the first threshold may be the first UE processing delay
  • the first UE processing delay may include at least one of the following:
  • the delay in the first terminal processing resource indication information (for example, COT sharing information);
  • LCP Logical Channel Prioritization
  • the UE receives the COT sharing information (and the resources indicated by it), if the UE's processing delay for resource selection and other steps is greater than X (i.e., the first threshold), and the resources indicated by the COT sharing information are less than or equal to
  • X i.e., the first threshold
  • Another option is that if the UE considers that it is too late to perform resource selection and other steps, it will directly use the resources indicated by the COT sharing information and perform the existing
  • the resource selection mechanism is to select resources from the first resource set and/or the second resource set. This ensures successful transmission of the side link.
  • the method may also include one of the following:
  • the first terminal Before receiving the resource indication information, the first terminal generates a transport block (TB) to be transmitted, and the TB to be transmitted is used for PSSCH transmission; by performing logical channels on the data on the PSSCH Multiplexing (eg LCP process) can generate transport blocks TB. For example, when there is data sent to the second terminal in the cache of the first terminal, the first terminal can pre-generate the data into TB to be transmitted.
  • TB transport block
  • the first terminal Before receiving the resource indication information, the first terminal generates a physical channel and a physical signal to be transmitted, and the physical channel and physical signal include the first side link information. For example, when the first terminal has feedback information from the second terminal, the first terminal can generate the corresponding physical channel and physical signal in advance.
  • the TB or physical channel and physical signal to be transmitted can be generated before receiving the resource indication information, which can reduce the time the first terminal receives the resource indication information until the resource indication is available.
  • the processing delay of data sent by the resource indicated by the information further ensures the successful transmission of the side link.
  • the time-frequency domain resources indicated by the resource indication information are used to transmit the TB to be transmitted or the physical channel to be transmitted and the physical channel to be transmitted. Signal.
  • the first terminal generates a transmission block TB to be transmitted, including at least one of the following:
  • the first terminal generates TB to be transmitted according to the preset TB size
  • the first terminal generates the TB to be transmitted according to the preset CAPC value
  • the first terminal generates the TB to be transmitted according to the preset Packet Delay Budget (PDB).
  • PDB Packet Delay Budget
  • the first terminal generating the TB to be transmitted according to the preset TB size may include:
  • Step 1 The MAC layer of the first terminal generates a MAC Protocol Data Unit (PDU) according to the preset TB size;
  • PDU MAC Protocol Data Unit
  • Step 2 The MAC layer of the first terminal sends the generated MAC PDU to the physical layer (PHY) of the first terminal.
  • the UE generates a MAC PDU based on the preset TB size (size) at the MAC layer and sends it to the PHY layer.
  • This MAC PDU can be understood as a pre-generated MAC PDU, and in the existing technology, the MAC PDU is generated after the UE obtains available resources.
  • the PHY layer uses the resources to send the pre-generated MAC PDU.
  • the first terminal determines the preset information based on at least one of the following preset information: Set TB size (SIZE):
  • Default TB size that is, directly preset a TB size
  • MCS Modulation and coding scheme
  • Hybrid Automatic Repeat Request (HARQ) feedback information For example, whether the first terminal needs to feed back HARQ positive acknowledgment (Acknowledgement, ACK)/negative acknowledgment (Negative Acknowledgment, NACK), PSFCH, and for example, the number of symbols occupied by PSFCH, etc.
  • HARQ Hybrid Automatic Repeat Request
  • the preset TB size is determined by the MAC layer or physical layer of the first terminal.
  • the MAC layer or physical layer of the first terminal determines the preset TB size based on the preset information.
  • the MAC layer sends the preset information to the physical layer, and the physical layer determines the preset TB size based on the preset information; or, the physical layer sends the preset TB size.
  • the information is sent to the MAC layer, and the MAC layer determines the preset TB size based on the preset information.
  • the preset information may also be a default configuration, and the default configuration is used to indicate that the preset information is a pre-agreed value.
  • the TB size is the default value, indicating that the TB size is the agreed value.
  • the MCS default value indicates that the MCS supports sending the maximum amount of data.
  • the default value of the time domain resource indicates the minimum time domain unit of the shared COT resource that the COT shared UE can use, such as 1 slot, 1 symbol (symbol), and 1 minimum time slot (mini-slot) , 1 multi-slot, 1ms, 500us, etc.
  • the frequency domain resource default value indicates the minimum frequency domain unit of the shared COT resource that the COT shared UE can use, such as 1 subchannel (subchannel), 1 interlace channel, 1 subcarrier (sub- carrier) etc.
  • the HARQ feedback information is determined by the first terminal according to whether feedback information needs to be fed back to the second terminal and the number of symbols occupied by the PSFCH.
  • the first terminal may determine the HARQ feedback information according to whether it needs to feed back HARQ ACK/NACK and PSFCH to the opposite end UE.
  • the first terminal may obtain the preset information from a network side device.
  • the first terminal may also receive the preset information indicated by the second terminal.
  • the COT sharing UE can send the preset information to the COT sharing UE in advance to inform the COT sharing UE of its own resource scheduling mode (the resource scheduling mode here can also be called resource allocation mode, resource allocation mode, resource scheduling mode, etc.).
  • Scheduling mode, resources Source scheduling scheme, etc. can express the name of COT sharing resource allocation or scheduling mode when the UE performs the COT sharing function). Then, after the COT sharing UE successfully seizes the channel, resources can be allocated to the COT sharing UE according to the preset information.
  • the method may also include at least one of the following:
  • the first terminal reports capability information to the network side device, where the capability information indicates that the first terminal has the ability to pre-generate MAC PDU; for example, the first terminal reports its ability to support pre-generating MAC PDU to base station.
  • the first terminal reports the capability information to the second terminal; for example, the first terminal notifies the second terminal of its ability to support pre-generated MAC PDU.
  • the first terminal sends the preset information to the second terminal.
  • COT shared UE sends the preset information to COT sharing UE.
  • the COT shared UE may send the information to the COT sharing UE. Then when the COT sharing UE successfully seizes the channel, resources can be allocated to the COT shared UE based on this information.
  • the first terminal generating the TB to be transmitted according to the preset CAPC value may also include: the first terminal loading the logical channel data whose CAPC value is the preset CAPC value. Enter the generated MAC PDU to generate the TB to be transmitted.
  • the first terminal can determine the logical channel (or data) to be loaded into the MAC PDU according to the preset CAPC value.
  • this possible implementation can be combined with the above-mentioned generation of TB to be transmitted based on the preset TB size.
  • the first terminal determines the TB size according to the above method, and then generates the MAC based on this possible implementation. PDU.
  • the pre-generated MAC PDU is the data to be sent.
  • the first terminal generates TB to be transmitted according to a preset Packet Delay Budget (PDB), which may include:
  • Step 1 The first terminal selects target data in the cache as data to be transmitted, where the target data is data whose target resources can satisfy the preset PDB, and the target resource is the first terminal. Predicting the resources that the second terminal will share with the first terminal;
  • Step 2 The first terminal generates a TB to be transmitted according to the target data.
  • the UE determines the logical channel (data) loaded into the MAC PDU based on the preset PDB or remaining PDB (remaining PDB, rPDB).
  • the UE when the UE communicates with the peer UE, if the UE expects that the peer UE will perform COT sharing on certain resources (such as one or some time domain resources, frequency domain resources), the UE can choose These resources in the cache can satisfy the data of PDB or rPDB.
  • certain resources such as one or some time domain resources, frequency domain resources
  • the UE sends PSSCH to the opposite UE in slot n
  • the UE selects data that satisfies these time slot resources and can satisfy PDB or rPDB to generate MAC PDU.
  • this possible implementation can be combined with the above-mentioned generation of TB to be transmitted based on the preset TB size.
  • the first terminal determines the TB size according to the above method, and then generates the MAC based on this possible implementation. PDU.
  • the preset PDB can be the PDB corresponding to the Quality of Service (QoS) flow of the current service.
  • QoS Quality of Service
  • the first terminal generating the physical channel and physical signal to be transmitted may include: the first terminal using the physical channel and physical signal whose CAPC value is the preset CAPC value as the data to be sent. .
  • the method may also include: the first terminal may create a preset side link authorization based on the TB to be sent or the physical channel and physical signal to be sent (or may also side-link authorization known as pre-confirmation, booking, reservation, pre-assignment, etc.).
  • the first terminal can create a preset SL grant based on pre-generated MAC PDU or data to be sent.
  • the first terminal obtains the available side link grant (i.e., side link transmission resource, SL grant), for example, configuration grant (Configured Grant, CG), dynamic grant (Dynamic Grant, DG), selection grant ( Selected (sidelink) Grant, SG) or COT sharing information indicates the SL grant.
  • SL grant side link transmission resource
  • configuration grant Configured Grant, CG
  • dynamic grant Dynamic Grant, DG
  • selection grant Selected (sidelink) Grant, SG
  • COT sharing information indicates the SL grant.
  • the available SL grant can meet the preset SL grant
  • the UE uses the available SL grant (determined resource) to send The pre-generated MAC PDU or data to be sent (associated with the default SL grant).
  • the available SL grant can satisfy the preset SL grant, which is determined by the MAC layer or PHY layer of the first terminal;
  • the available SL grant can satisfy the preset SL grant, including at least one of the following:
  • the amount of data that the available SL grant resources can accommodate is greater than or equal to the data amount of the preset SL grant resources
  • the starting position of the available SL grant resource is no later than the starting position of the preset SL grant resource p time units, and the time unit includes one of the following: time slot, symbol, minimum hour gap;
  • the CAPC value of the available SL grant is greater than or equal to the CAPC value of the preset SL grant.
  • S220 may include: S222, when the interval between the first time domain position and the second time domain position is greater than or equal to a second threshold, The first terminal performs a second selection operation, wherein the second selection operation includes at least one of the following:
  • the second resource set recommended by the second terminal includes the shared time-frequency resource; and/or the first resource set indicated by the physical layer of the first terminal includes the shared time-frequency resource.
  • the first terminal may not use the shared time-frequency domain resource as A side link grant (SL grant, side link resource) is used, but the side link resource is selected from the first resource set and/or the second resource set.
  • a side link grant SL grant, side link resource
  • the second threshold may be the second UE processing delay
  • the second UE processing delay may include at least one of the following:
  • the delay in the first terminal processing resource indication information (for example, COT sharing information);
  • LCP Logical Channel Prioritization
  • the first threshold and the second threshold may be the same or different, and are not specifically limited in the embodiment of the present application.
  • selecting part or all of the shared time-frequency domain resources for side-link transmission with the second terminal may include one of the following:
  • the first terminal selects the resources included in the resources determined based on the sensing results (sensing results) among the shared time-frequency domain resources as side link resources.
  • the sensing result may be the result of the first terminal parsing the SCI sent by the other terminal.
  • the first terminal can learn whether the other terminal reserves resources in the resource selection window, and further can determine based on the result that the first terminal can resources used.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal includes: when the first terminal is not configured with an IUC, selecting the The shared time-frequency domain resources are used to perform the side link transmission. For example, if RRC does not enable the first terminal to receive a recommended resource set (preferred resource set) or a non-preferred resource set (non-preferred resource set), there is no configuration. With IUC function, the first terminal chooses to use shared COT resources.
  • the first terminal may select an intersection resource between the shared time-frequency domain resource and the first resource set indicated by the physical layer to perform the side link transmission. That is, the first terminal chooses to use the intersection resource of the shared COT resource and the physical layer instruction resource set resource.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal includes:
  • the intersection resource of the shared time-frequency domain resource and the second resource set recommended by the second terminal is selected for side link transmission. For example, if RRC enables the first terminal to receive a preferred resource set or a non-preferred resource set, that is, the IUC function is configured, the first terminal chooses to use the intersection resource of the shared COT resource and the preferred resource set resource.
  • the first terminal does not sense the result. That is, the first terminal parses the SCI sent by other terminals, but does not obtain the parsing result. For example, the SCI sent by other terminals is not detected, or the SCI sent by other terminals is detected, but the parsing fails, etc.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal includes:
  • an intersection resource of the shared time-frequency domain resource and the first resource set is selected for side link transmission. For example, if RRC enables the UE to receive a preferred resource set or a non-preferred resource set, that is, the IUC function is configured, the UE chooses to use the intersection resource of the shared COT resource and the physical layer indicated resource set resource.
  • intersection resource of the first resource set and the resource set recommended by the second terminal is empty. That is, the intersection resource of the preferred resource set resource and the physical layer instruction resource set resource is empty.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal may include: when the first terminal is configured with an IUC, selecting the The intersection resources of the shared time-frequency domain resources, the first resource set, and the second resource set recommended by the second terminal perform side link transmission. For example, if RRC enables the first terminal to receive a preferred resource set or a non-preferred resource set, that is, the IUC function is configured, the first terminal chooses to use the intersection resource of the shared COT resource, the preferred resource set resource, and the physical layer indicated resource set resource.
  • the first terminal has a sensing result.
  • the method may further include: the first terminal sending the first threshold and/or the second threshold to the second terminal.
  • the first terminal may only send one threshold.
  • the resource indication information (for example, COT sharing information) is also used to indicate one of the following:
  • the resources selected by the resource selection include at least one of the following:
  • the shared time-frequency domain resources for example, resources indicated by COT sharing information.
  • COT sharing information indicates whether the peer UE wants to perform re-evaluation (re-evaluation) or priority preemption (pre-emption) check on the resources indicated by COT sharing information.
  • the first terminal can determine the relationship between the processing delay of the COT sharing information and the time domain location of the SCI and/or MAC CE of the COT sharing information and the time domain location of the resource indicated by the COT sharing information. interval to determine whether to directly use the resources indicated by COT sharing information or to perform resource selection. This enables the COT sharing function of the terminal's SLU.
  • FIG. 5 shows a schematic flowchart of the data transmission method provided by the embodiment of the present application.
  • the method 500 can be executed by the first terminal.
  • the method may be performed by software or hardware installed on the first terminal.
  • the method may include the following steps.
  • S510 The first terminal generates a transmission block TB to be transmitted.
  • the first terminal After obtaining available side link resources, the first terminal transmits the TB based on the available side link resources.
  • the first terminal generates a transmission block TB to be transmitted, including at least one of the following:
  • the first terminal generates TB to be transmitted according to the preset TB size
  • the first terminal generates the TB to be transmitted according to the preset CAPC value
  • the first terminal generates the TB to be transmitted according to the preset packet delay budget PDB.
  • the first terminal generating the TB to be transmitted according to the preset TB size may include:
  • Step 1 The MAC layer of the first terminal generates a MAC Protocol Data Unit (PDU) according to the preset TB size;
  • PDU MAC Protocol Data Unit
  • Step 2 The MAC layer of the first terminal sends the generated MAC PDU to the physical layer (PHY) of the first terminal.
  • the UE generates MAC PDU based on the preset TB size at the MAC layer and sends it to the PHY layer.
  • This MAC PDU can be understood as a pre-generated MAC PDU, and in the existing technology, the MAC PDU is generated after the UE obtains available resources.
  • the PHY layer uses the resources to send the pre-generated MAC PDU.
  • the first terminal determines the preset TB size (SIZE) based on at least one of the following preset information:
  • Default TB size that is, directly preset a TB size
  • MCS Modulation and coding scheme
  • Hybrid Automatic Repeat Request (HARQ) feedback information For example, whether the first terminal needs to feedback HARQ ACK/NACK, PSFCH, and the number of symbols occupied by PSFCH, etc.
  • HARQ Hybrid Automatic Repeat Request
  • the preset TB size is determined by the MAC layer or physical layer of the first terminal.
  • the MAC layer or physical layer of the first terminal determines the preset TB size based on the preset information.
  • the MAC layer sends the preset information to the physical layer, and the physical layer determines the preset TB size based on the preset information; or, the physical layer sends the preset TB size.
  • the information is sent to the MAC layer, and the MAC layer determines the preset TB size based on the preset information.
  • the preset information may also be a default configuration, and the default configuration is used to indicate that the preset information is a pre-agreed value.
  • the TB size is the default value, indicating that the TB size is the agreed value.
  • the MCS default value indicates that the MCS supports sending the maximum amount of data.
  • the default value of the time domain resource indicates the minimum time domain unit of the shared COT resource that the COT shared UE can use, such as 1 slot, 1 symbol, 1 mini-slot, 1 multi-slot, 1ms , 500us, etc.
  • the default value of the frequency domain resource indicates the minimum frequency domain unit of the shared COT resource that the COT shared UE can use, such as 1 subchannel, 1 interlace, 1 sub-carrier, etc.
  • the HARQ feedback information is determined by the first terminal according to whether feedback information needs to be fed back to the second terminal and the number of symbols occupied by the PSFCH.
  • the first terminal may determine the HARQ feedback information according to whether it needs to feed back HARQ ACK/NACK and PSFCH to the opposite end UE.
  • the first terminal may obtain the preset information from a network side device.
  • the first terminal may also receive the preset information indicated by the second terminal.
  • the COT sharing UE can send the preset information to the COT sharing UE in advance to inform the COT sharing UE of its own resource scheduling mode (the resource scheduling mode here can also be called resource allocation mode, resource Scheduling mode, resource scheduling plan, etc. can express the name of the resource allocation or scheduling mode when the COT sharing UE performs the COT sharing function). Then when the COT sharing UE successfully seizes the channel, it can provide the COT sharing UE with the preset information. Allocating resources.
  • the method may also include at least one of the following:
  • the first terminal reports capability information to the network side device, where the capability information indicates that the first terminal has the ability to pre-generate MAC PDU; for example, the first terminal reports its ability to support pre-generating MAC PDU to base station.
  • the first terminal reports the capability information to the second terminal; for example, the first terminal notifies the second terminal of its ability to support pre-generated MAC PDU.
  • the first terminal sends the preset information to the second terminal.
  • COT shared UE sends the preset information to COT sharing UE.
  • the COT shared UE may send the information to the COT sharing UE. Then when the COT sharing UE successfully seizes the channel, resources can be allocated to the COT shared UE based on this information.
  • the first terminal generating the TB to be transmitted according to the preset CAPC value may also include: the first terminal loading the logical channel data whose CAPC value is the preset CAPC value. Enter the generated MAC PDU to generate the TB to be transmitted.
  • the first terminal can determine the logical channel (or data) to be loaded into the MAC PDU according to the preset CAPC value.
  • this possible implementation can be combined with the above-mentioned generation of TB to be transmitted based on the preset TB size.
  • the first terminal determines the TB size according to the above method, and then generates the MAC based on this possible implementation. PDU.
  • the pre-generated MAC PDU is the data to be sent.
  • the first terminal generates TB to be transmitted according to a preset Packet Delay Budget (PDB), which may include:
  • Step 1 The first terminal selects target data in the cache as data to be transmitted, where the target data is data whose target resources can satisfy the preset PDB, and the target resource is the first terminal. Predicting the resources that the second terminal will share with the first terminal;
  • Step 2 The first terminal generates a TB to be transmitted according to the target data.
  • the UE determines the logical channel (data) loaded into the MAC PDU based on the preset PDB or rPDB.
  • the UE when the UE communicates with the peer UE, if the UE expects that the peer UE will perform COT sharing on certain resources (such as one or some time domain resources, frequency domain resources), the UE can choose These resources in the cache can satisfy the data of PDB or rPDB.
  • certain resources such as one or some time domain resources, frequency domain resources
  • this possible implementation can be combined with the above-mentioned generation of TB to be transmitted based on the preset TB size.
  • the first terminal determines the TB size according to the above method, and then generates the MAC based on this possible implementation. PDU.
  • the preset PDB can be the PDB corresponding to the Quality of Service (QoS) flow of the current service.
  • QoS Quality of Service
  • the method may also include: the first terminal may create a preset side link authorization (or may also be called pre-confirmation, reservation, subscription, etc.) based on the TB to be sent. Sidelink authorization for pre-allocation etc.). For example, the first terminal can create a preset SL grant based on pre-generated MAC PDU or data to be sent.
  • the first terminal obtains the available side link grant (i.e., side link transmission resource, SL grant), for example, configuration grant (Configured Grant, CG), dynamic grant (Dynamic Grant, DG), selection grant ( Selected (sidelink) Grant, SG) or COT sharing information indicates the SL grant.
  • SL grant side link transmission resource
  • configuration grant Configured Grant, CG
  • dynamic grant Dynamic Grant, DG
  • selection grant Selected (sidelink) Grant, SG
  • COT sharing information indicates the SL grant.
  • the available SL grant can meet the preset SL grant
  • the UE uses the available SL grant (determined resource) to send The pre-generated MAC PDU or data to be sent (associated with the default SL grant).
  • the available SL grant can satisfy the preset SL grant, which is determined by the MAC layer or PHY layer of the first terminal;
  • the available SL grant can satisfy the preset SL grant, including at least one of the following:
  • the amount of data that the available SL grant resources can accommodate is greater than or equal to the data amount of the preset SL grant resources
  • the starting position of the available SL grant resource is no later than the starting position of the preset SL grant resource p time units, and the time unit includes one of the following: time slot, symbol, minimum hour gap;
  • the CAPC value of the available SL grant is greater than or equal to the CAPC value of the preset SL grant.
  • the MAC layer can pre-generate TB/MAC PDU and send it to PHY layer.
  • the UE can directly send the pre-generated TB when it receives the shared COT that can satisfy the TB, which reduces the processing delay of the first terminal from receiving COT sharing information to being able to use the shared COT resource to send data. .
  • Figure 6 shows a schematic flowchart of a resource selection method provided by an embodiment of the present application.
  • the method 600 can be executed by the first terminal.
  • the method may be performed by software or hardware installed on the first terminal.
  • the method may include the following steps.
  • S610 The first terminal determines whether it has received resource indication information sent by the second terminal, where the resource indication information is used to indicate time-frequency domain resources shared by the second terminal.
  • the resource indication information is the same as the resource indication information in the above method 200. For details, please refer to the above method. Description in 200.
  • S620 The first terminal performs a third selection operation based on the judgment result.
  • the third selection operation includes one of the following:
  • the first terminal may select part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal when the judgment result is that the resource indication information sent by the second terminal is received. , if the judgment result is that the resource indication information sent by the second terminal is not received, select some or all of the resources in the first resource set indicated by the physical layer of the first terminal to perform side link transmission with the second terminal, And/or, select some or all of the resources in the second resource set recommended by the second terminal for side-link transmission with the second terminal. For example, resource selection may be performed through the MAC of the first terminal.
  • the first terminal can realize resource selection between shared COT resources, IUC resources and physical layer indication resources.
  • selecting part or all of the shared time-frequency domain resources for side-link transmission with the second terminal may include one of the following:
  • the first terminal selects the resources included in the resources determined based on the sensing results (sensing results) among the shared time-frequency domain resources as side link resources.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal includes: when the first terminal is not configured with an IUC, selecting the The shared time-frequency domain resources are used to perform the side link transmission. For example, if RRC does not enable the first terminal to receive the recommended resource set (preferred resource set) or the non-preferred resource set (non-preferred resource set), that is, the IUC function is not configured, the first terminal chooses to use the shared COT resource.
  • the first terminal may select an intersection resource between the shared time-frequency domain resource and the first resource set indicated by the physical layer to perform the side link transmission. That is, the first terminal selects the intersection resource of the shared COT resource and the physical layer indication resource set resource.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal includes:
  • the shared time-frequency domain resources are selected and pushed by the second terminal.
  • the intersection resource of the recommended second resource set is used for side link transmission. For example, if RRC enables the first terminal to receive a preferred resource set or a non-preferred resource set, that is, the IUC function is configured, the first terminal chooses to use the intersection resource of the shared COT resource and the preferred resource set resource.
  • the first terminal does not sense the result.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal includes:
  • an intersection resource of the shared time-frequency domain resource and the first resource set is selected for side link transmission. For example, if RRC enables the UE to receive a preferred resource set or a non-preferred resource set, that is, the IUC function is configured, the UE chooses to use the intersection resource of the shared COT resource and the physical layer indicated resource set resource.
  • intersection resource of the first resource set and the resource set recommended by the second terminal is empty. That is, the intersection resource of the preferred resource set resource and the physical layer instruction resource set resource is empty.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal may include: when the first terminal is configured with an IUC, selecting the The intersection resources of the shared time-frequency domain resources, the first resource set, and the second resource set recommended by the second terminal perform side link transmission. For example, if RRC enables the first terminal to receive a preferred resource set or a non-preferred resource set, that is, the IUC function is configured, the first terminal chooses to use the intersection resource of the shared COT resource, the preferred resource set resource, and the physical layer indicated resource set resource.
  • the first terminal has a sensing result.
  • the execution subject may be a resource selection device.
  • the resource selection device performing the resource selection method is taken as an example to illustrate the resource selection device provided by the embodiment of the present application.
  • Figure 7 shows a schematic structural diagram of a resource selection device provided by an embodiment of the present application.
  • the device 700 mainly includes: a receiving module 701 and a selection module 702.
  • the receiving module 701 is used to receive resource indication information sent by the second terminal, where the resource indication information is used to indicate the time-frequency domain resources shared by the second terminal; the selection module 702 is used to Selecting resources for side link transmission with the second terminal based on the interval between the first time domain location and the second time domain location; wherein the first time domain location is the location that receives the resource indication information.
  • Time domain position, the second time domain position is the time domain position of the time-frequency domain resource indicated by the resource indication information.
  • the selection module 702 selects resources for side link transmission with the second terminal based on the interval between the first time domain location and the second time domain location, including:
  • the selection module 702 is further configured to select the resource for transmitting the first side link information from the time-frequency domain resources indicated by the resource indication information.
  • the media access control MAC layer to which time and frequency domain resources are reported.
  • the device further includes: a second generation module, used for one of the following:
  • a physical channel and a physical signal to be transmitted are generated, and the physical channel and physical signal include the first side link information.
  • the device may further include: a second transmission module configured to, after receiving the resource indication information, use the time-frequency domain resources indicated by the resource indication information to transmit one of the following: The TB to be transmitted; the physical channel and physical signal to be transmitted.
  • a second transmission module configured to, after receiving the resource indication information, use the time-frequency domain resources indicated by the resource indication information to transmit one of the following: The TB to be transmitted; the physical channel and physical signal to be transmitted.
  • the second generation module generates a transmission block TB to be transmitted, including at least one of the following:
  • the TB to be transmitted is generated based on the preset packet delay budget PDB.
  • the TB to be transmitted is generated according to the preset TB size, including:
  • the media access control MAC layer generates a MAC protocol data unit PDU according to the preset TB size
  • the MAC layer sends the generated MAC PDU to the physical layer.
  • the preset TB size is determined based on at least one of the following preset information:
  • Modulation coding scheme MCS Modulation coding scheme
  • Hybrid automatic repeat request HARQ feedback information
  • the preset TB size is determined by the MAC layer or the physical layer.
  • the preset information includes a default configuration, and the default configuration is used to indicate that the preset information is a pre-agreed value.
  • the HARQ feedback information is determined by the first terminal according to whether feedback information needs to be fed back to the second terminal and the number of symbols occupied by the PSFCH.
  • the MAC layer sends the preset information to the physical layer; or, the physical layer sends the preset information to the MAC layer.
  • the receiving module is also used for one of the following:
  • the preset information is obtained from the second terminal.
  • the second transmission module is also used for at least one of the following:
  • generating a TB to be transmitted according to a preset CAPC value includes: loading logical channel data whose CAPC value is the preset CAPC value into the generated MAC PDU, and generating a TB to be transmitted. TB.
  • TB to be transmitted is generated based on the preset packet delay budget PDB, including:
  • Target data in the cache is data whose target resources can satisfy the preset PDB, and the target resource is predicted that the second terminal will transmit data to the device. shared resources;
  • TB to be transferred is generated based on the target data.
  • the preset PDB is a PDB corresponding to the quality of service QoS flow of the current service.
  • generating a physical channel and a physical signal to be transmitted includes: using a physical channel and a physical signal whose CAPC value is a preset CAPC value as data to be sent.
  • the selection module 702 selects resources for side link transmission with the second terminal based on the interval between the first time domain location and the second time domain location, including:
  • the second resource set recommended by the second terminal includes the shared time-frequency resource; and/or the first resource set indicated by the physical layer includes the shared time-frequency resource.
  • the selection module 702 selects part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal, including one of the following:
  • the selection module 702 selects part or all of the shared time-frequency domain resources and all the shared time-frequency domain resources.
  • the second terminal performs side link transmission, including:
  • the shared time-frequency domain resources are selected for the side link transmission.
  • the selection module 702 selects the shared time-frequency domain resource for the side-link transmission, including: selecting a relationship between the shared time-frequency domain resource and the first resource set indicated by the physical layer. Intersection resources are used to perform the side link transmission.
  • the selection module 702 selects part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal, including:
  • an intersection resource between the shared time-frequency domain resource and the second resource set recommended by the second terminal is selected for side link transmission.
  • the device senses no results.
  • the selection module 702 selects part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal, including:
  • an intersection resource of the shared time-frequency domain resource and the first resource set is selected for side link transmission.
  • the intersection resource of the first resource set and the resource set recommended by the second terminal is empty.
  • the selection module 702 selects part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal, including:
  • the intersection resource of the shared time-frequency domain resources, the first resource set and the second resource set recommended by the second terminal is selected for side link transmission.
  • the device has sensing results.
  • the device further includes: a sending module, configured to send the first threshold and/or the second threshold to the second terminal.
  • the resource indication information is also used to indicate one of the following:
  • the resources selected by the resource selection include at least one of the following:
  • Figure 8 shows a schematic structural diagram of a data transmission device provided by an embodiment of the present application.
  • the device 800 mainly includes: a first generation module 801 and a first transmission module 802.
  • the first generation module 801 is used to generate the transmission block TB to be transmitted; the first transmission module 802 is used to obtain the available side link resources, based on the available side link resources. , transfer the TB.
  • the first generation module 801 generates the transmission block TB to be transmitted, including at least the following: one:
  • the TB to be transmitted is generated based on the preset packet delay budget PDB.
  • the first generation module 801 generates the TB to be transmitted according to the preset TB size, including:
  • the media access control MAC layer generates a MAC protocol data unit PDU according to the preset TB size
  • the MAC layer sends the generated MAC PDU to the physical layer of the first terminal.
  • the first generation module 801 determines the preset TB size based on at least one of the following preset information:
  • Modulation coding scheme MCS Modulation coding scheme
  • Hybrid automatic repeat request HARQ feedback information
  • the preset TB size is determined by the MAC layer or the physical layer.
  • the preset information includes a default configuration, and the default configuration is used to indicate that the preset information is a pre-agreed value.
  • the HARQ feedback information is determined by the first terminal according to whether feedback information needs to be fed back to the second terminal and the number of symbols occupied by the PSFCH.
  • the MAC layer sends the preset information to the physical layer; or, the physical layer sends the preset information to the MAC layer.
  • the first transmission module 802 is also used for one of the following:
  • the preset information is obtained from the second terminal.
  • the first transmission module 802 is also used for one of the following:
  • the first generation module 801 generates the TB to be transmitted according to the preset CAPC value, including: loading the logical channel data whose CAPC value is the preset CAPC value into the generated MAC. PDU, generates TB to be transmitted.
  • the first generation module 801 generates the TB to be transmitted according to the preset packet delay budget PDB, including:
  • Target data in the cache is data whose target resources can satisfy the preset PDB, and the target resources are the data that the first terminal predicts the second terminal will Resources shared with the first terminal;
  • TB to be transferred is generated based on the target data.
  • the preset PDB is a PDB corresponding to the QoS flow of the current service.
  • Figure 9 shows a schematic structural diagram of a resource selection device provided by an embodiment of the present application.
  • the device 900 mainly includes: a judgment module 901 and an execution module 902.
  • the determination module 901 is used to determine whether resource indication information sent by the second terminal is received, wherein the resource indication information is used to indicate the time-frequency domain resources shared by the second terminal; execution module 902, configured to perform one of the following according to the judgment result: select part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal; select part of the first resource set indicated by the physical layer Or all resources may be used for side-link transmission with the second terminal; part or all of the resources in the second resource set recommended by the second terminal may be selected for side-link transmission with the second terminal.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal includes one of the following:
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal includes:
  • the shared time-frequency domain resources are selected for the side link transmission.
  • selecting the shared time-frequency domain resource for the side link transmission includes: selecting an intersection resource of the shared time-frequency domain resource and the first resource set indicated by the physical layer for transmission. The side link transmission.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal includes:
  • the intersection resource of the shared time-frequency domain resource and the second resource set recommended by the second terminal is selected for side link transmission.
  • the device senses no results.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal includes:
  • the intersection resource of the shared time-frequency domain resource and the first resource set is selected for side link transmission.
  • the intersection resource of the first resource set and the resource set recommended by the second terminal is null.
  • selecting part or all of the shared time-frequency domain resources to perform side-link transmission with the second terminal includes:
  • an intersection resource of the shared time-frequency domain resources, the first resource set, and the second resource set recommended by the second terminal is selected for side link transmission.
  • the device has sensing results.
  • the above-mentioned device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • NAS Network Attached Storage
  • this embodiment of the present application also provides a communication device 1000, which includes a processor 1001 and a memory 1002.
  • the memory 1002 stores programs or instructions that can be run on the processor 1001, such as , when the communication device 1000 is a terminal, when the program or instruction is executed by the processor 1001, each step of the above resource selection method 200 embodiment is realized, or each step of the above data transmission method 500 embodiment is realized, or the above resource selection method is realized.
  • Each step of the method 600 embodiment can be selected to achieve the same technical effect. To avoid duplication, it will not be described again here.
  • An embodiment of the present application also provides a terminal, including a processor and a communication interface.
  • the processor is configured to implement each step of the above resource selection method 200 embodiment, or to implement each step of the above data transmission method 500 embodiment, or to implement the above resource
  • the communication interface is used to communicate with external devices.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment.
  • Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 11 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
  • the terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, a processor 1110, etc. At least some parts.
  • the terminal 1100 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 1110 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal structure shown in FIG. 11 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.
  • the input unit 1104 may include a graphics processing unit (GPU) 11041 and a microphone 11042.
  • the GPU 11041 is suitable for video capture mode or image capture. In this mode, image data of still pictures or videos obtained by an image capture device (such as a camera) is processed.
  • the display unit 1106 may include a display panel 11061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1107 includes at least one of a touch panel 11071 and other input devices 11072 .
  • Touch panel 11071 also called touch screen.
  • the touch panel 11071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 11072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
  • the radio frequency unit 1101 after receiving downlink data from the network side device, the radio frequency unit 1101 can transmit it to the processor 1110 for processing; in addition, the radio frequency unit 1101 can send uplink data to the network side device.
  • the radio frequency unit 1101 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
  • Memory 1109 may be used to store software programs or instructions as well as various data.
  • the memory 1109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
  • memory 1109 may include volatile memory or nonvolatile memory, or memory 1109 may include both volatile and nonvolatile memory.
  • non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory.
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory Synchronous DRAM, SDRAM
  • Double data rate synchronous dynamic random access memory Double Data Rate SDRAM, DDRSDRAM
  • Enhanced SDRAM, ESDRAM synchronous link dynamic random access memory
  • Synch link DRAM synchronous link dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • the processor 1110 may include one or more processing units; optionally, the processor 1110 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 1110.
  • the radio frequency unit 1101 is configured to receive resource indication information sent by the second terminal, where the resource indication information is used to indicate the time-frequency domain resources shared by the second terminal; the processor 1110 is configured to based on the first time-frequency domain resource.
  • the interval between the domain location and the second time domain location selects the resource for side link transmission with the second terminal; wherein the first time domain location is the time domain location that receives the resource indication information, so The second time domain position is the time domain position of the time-frequency domain resource indicated by the resource indication information.
  • the processor 1110 is configured to generate a transmission block TB to be transmitted; the radio frequency unit 1101 is configured to, after obtaining available side link resources, transmit the TB based on the available side link resources.
  • the processor 1110 is configured to determine whether the resource indication information sent by the second terminal is received, wherein, The resource indication information is used to indicate the time-frequency domain resources shared by the second terminal; according to the judgment result, perform one of the following:
  • Embodiments of the present application also provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, each process of the resource selection method 200 embodiment is implemented, or the program or instructions are implemented. Each process of the above embodiment of the data transmission method 500, or each process of the above embodiment of the resource selection method 600, can achieve the same technical effect, and will not be described again here to avoid duplication.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the above resource selection method 200.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • the embodiment of the present application further provides a computer program/program product, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the above resource selection method 200
  • Each process of the embodiment may implement each process of the above-mentioned data transmission method 500 embodiment, or implement each process of the above-mentioned resource selection method 600 embodiment, and can achieve the same technical effect. To avoid duplication, they will not be described again here.
  • the methods of the above embodiments can It can be implemented with the help of software plus the necessary common hardware platform. Of course, it can also be implemented through hardware, but in many cases the former is a better implementation method.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

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

Abstract

La présente demande se rapporte au domaine des communications sans fil. Sont divulgués un procédé et un appareil de sélection de ressources, ainsi qu'un terminal. Le procédé de sélection de ressources de modes de réalisation de la présente demande comprend les étapes suivantes : un premier terminal reçoit des informations d'indication de ressources envoyées par un deuxième terminal, les informations d'indication de ressources étant utilisées pour indiquer une ressource de domaine temps-fréquence partagée par le deuxième terminal ; et sur la base d'un intervalle entre une première position de domaine temporel et une deuxième position de domaine temporel, le premier terminal sélectionne une ressource pour une transmission de liaison latérale avec le deuxième terminal, la première position de domaine temporel étant une position de domaine temporel permettant de recevoir les informations d'indication de ressource, et la deuxième position de domaine temporel étant une position de domaine temporel de la ressource de domaine temps-fréquence indiquée par les informations d'indication de ressource.
PCT/CN2023/110938 2022-08-09 2023-08-03 Procédé et appareil de sélection de ressources, et terminal WO2024032455A1 (fr)

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CN202210950561.2A CN117676825A (zh) 2022-08-09 2022-08-09 资源的选择方法、装置及终端
CN202210950561.2 2022-08-09

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111132296A (zh) * 2018-11-01 2020-05-08 华为技术有限公司 一种数据传输、确定发送功率的方法及设备
WO2022061775A1 (fr) * 2020-09-25 2022-03-31 Oppo广东移动通信有限公司 Procédé de transmission d'ensembles de ressources et dispositif de terminal
WO2022141608A1 (fr) * 2020-12-31 2022-07-07 华为技术有限公司 Procédé de communication et appareil de communication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111132296A (zh) * 2018-11-01 2020-05-08 华为技术有限公司 一种数据传输、确定发送功率的方法及设备
WO2022061775A1 (fr) * 2020-09-25 2022-03-31 Oppo广东移动通信有限公司 Procédé de transmission d'ensembles de ressources et dispositif de terminal
WO2022141608A1 (fr) * 2020-12-31 2022-07-07 华为技术有限公司 Procédé de communication et appareil de communication

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