WO2021062774A1 - Procédé et dispositif de traitement de ressources de liaison latérale, et système - Google Patents

Procédé et dispositif de traitement de ressources de liaison latérale, et système Download PDF

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Publication number
WO2021062774A1
WO2021062774A1 PCT/CN2019/109698 CN2019109698W WO2021062774A1 WO 2021062774 A1 WO2021062774 A1 WO 2021062774A1 CN 2019109698 W CN2019109698 W CN 2019109698W WO 2021062774 A1 WO2021062774 A1 WO 2021062774A1
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WO
WIPO (PCT)
Prior art keywords
terminal
side link
resource
resources
bit sequence
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Application number
PCT/CN2019/109698
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English (en)
Chinese (zh)
Inventor
王源泉
苏宏家
卢磊
郭文婷
董蕾
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/109698 priority Critical patent/WO2021062774A1/fr
Priority to CN201980100554.XA priority patent/CN114424596A/zh
Publication of WO2021062774A1 publication Critical patent/WO2021062774A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • This application relates to the field of wireless communication technologies, and in particular to a method, device, and system for processing side link resources.
  • V2X Vehicle-To-Everything
  • LTE Long Term Evolution
  • V2X is based on Device-to-Device (D2D) communication technology, but has higher latency requirements than D2D.
  • D2D Device-to-Device
  • V2X includes vehicle-to-vehicle communication (Vehicle to Vehicle, V2V) , Vehicle to pedestrian communication (Vehicle to Pedestrian, V2P), vehicle to infrastructure communication (Vehicle to Infrastructure, V2I), vehicle to network communication (Vehicle to Network, V2N). Therefore, V2X is the key technology of the future intelligent transportation system. In order to ensure the reliability of V2X communication, how to realize the reasonable allocation of resources is very important.
  • V2X Under the LTE network, V2X supports broadcast transmission, that is, the sender terminal can send services to the receiver terminal on the side link in a broadcast mode, and the receiver terminal does not need to feed back the reception or not information to the sender terminal. Therefore, In the LTE network, V2X only supports blind retransmission. In the blind retransmission scenario, when the sender terminal transmits for the first time, it will use sidelink control information (SCI) to indicate whether to retransmit. When the SCI indicates retransmission, the sender terminal will The retransmission resources are reserved in the SCI, and therefore, the case where the retransmission resources are reserved and not used is not involved in LTE-V2X.
  • SCI sidelink control information
  • V2X In the New Radio (NR) network, V2X not only supports blind retransmission, but also supports feedback-based retransmission, that is, after the first transmission, if the sender terminal receives the data from the receiver terminal A negative acknowledgement (Negative acknowledgement, NACK) is retransmitted on the reserved retransmission resource until the acknowledgement (ACK) information is received.
  • NACK Negative acknowledgement
  • the sender terminal still reserves the retransmission resource through SCI during the initial transmission. If the response message from the receiver terminal is received before the reserved retransmission resource is used up, there will be a reserved retransmission resource. Without using the situation.
  • the sender terminal receives the response information and the reserved retransmission resources are left, the remaining retransmission resources will be released.
  • One or more terminals including the receiver terminal can compete to use these The released retransmission resources, however, when one or more terminals compete for the retransmission resources, a time delay will be introduced due to the resource listening process, so that part of the released remaining resources cannot be reused, thus causing a waste of resources.
  • the present application provides a method, device and system for processing side-link resources to improve the utilization rate of side-link resources.
  • an embodiment of the present application provides a method for processing side link resources, the method includes: the second terminal determines that a transmission block from the first terminal is successfully received; the transmission block is the first terminal on the first side The transmission block transmitted on the uplink resource; the second terminal sends confirmation information and a resource selection indication to the first terminal, the confirmation information is used to indicate that the second terminal successfully receives the transmission block, and the resource selection indication is used to indicate the first terminal The selection result of one or more second side uplink resources used by the two terminals for retransmission of the transport block.
  • the embodiment of the application provides a method for processing sidelink resources. After the second terminal successfully receives the transmission block from the first terminal, the second terminal can inform the first terminal through the confirmation message that the second terminal has successfully received the transmission. Block, and can indicate the selection result of the second terminal on one or more second side link resources for retransmission of the transmission block through the resource selection indication.
  • the selection of side-link resources avoids the delay caused by the interception process when multiple terminals compete for the selection of side-link resources, which improves the utilization of side-link resources, and at the same time Reduce the probability of occurrence of side link resource collisions.
  • the resource selection indication includes a bit sequence, and the bit sequence is used to indicate a selection result of the second terminal on one or more second side link resources.
  • Different bit sequences can indicate different selection results, which not only facilitates the indication of selection results, but also reduces transmission content and reduces resource consumption caused by transmission.
  • the bit sequence is specifically used to indicate the information of the side link resource selected by the second terminal from the one or more second side link resources.
  • the value of each bit in the bit sequence is the first indicator
  • the side link resource selected by the second terminal is all of the one or more second side link resources.
  • Two-side uplink resources It can be determined by the first indicator that one or more second side link resources are all selected by the second terminal.
  • the value of the bit sequence includes at least one first indicator and at least one second indicator, and the bit sequence is specifically used to instruct the second terminal to select from one or more second side uplink resources Part of the side link resource information. It can be determined by the first indicator and the second indicator that one or more second side link resource parts are selected by the second terminal.
  • the method further includes: the second terminal sends a first indication to the first terminal on the side link, and the first indication is used to indicate that the side link resource selected by the second terminal is The proportion of the side link resources to which they belong.
  • the second terminal can flexibly select the size of the resource according to the size of the service, thereby avoiding resource waste.
  • the bit sequence is specifically used to indicate that the second terminal does not select the side link resource from the one or more second side link resources.
  • the value of each bit in the bit sequence is the second indicator. It can be determined through the second indicator that one or more second side link resources are not selected by the second terminal.
  • an embodiment of the present application provides a method for processing sidelink resources.
  • the method includes: a terminal obtains a resource selection indication from a second terminal, and the resource selection indication is used to instruct the second terminal pair to be used for retransmission transmission.
  • the embodiment of the present application provides a method for processing side link resources.
  • the terminal can determine the selection result of one or more second side link resources by the second terminal according to the resource selection instruction.
  • the second terminal has the priority of selecting side link resources from one or more second side link resources, that is, the second terminal can prioritize whether to select side link resources from one or more second side link resources. Compared with the prior art, it avoids the delay caused by the interception process when multiple terminals compete for the selection of side-link resources. This improves the utilization rate of side-link resources and reduces Probability of side link resource collision.
  • the method further includes: the first terminal receives confirmation information from the second terminal, where the confirmation information is used to indicate that the second terminal successfully receives the transmission block.
  • the resource selection indication includes a bit sequence, and the bit sequence is used to indicate a selection result of the second terminal on one or more second side link resources.
  • Different bit sequences can indicate different selection results, which not only facilitates the indication of selection results, but also reduces transmission content and reduces resource consumption caused by transmission.
  • the terminal determines the selection result of the second terminal for one or more second side link resources according to the resource selection indication, including: the terminal determines that the second terminal has not selected one or more second side link resources according to the bit sequence. Select the side link resource from among the second side link resources.
  • the terminal determines according to the bit sequence that the second terminal does not select the side link resource from the one or more second side link resources, including: the value of each bit in the bit sequence is the first In the second indicator, the terminal determines that the second terminal has not selected the side uplink resource from the one or more second side uplink resources. It can be determined through the second indicator that one or more second side link resources are not selected by the second terminal.
  • the bit sequence is specifically used to indicate the information of the side link resource selected by the second terminal from one or more second side link resources, and the terminal confirms the second terminal according to the resource selection instruction.
  • the selection result of the second terminal on the one or more second side link resources includes: the terminal determines the side link resource information selected by the second terminal from the one or more second side link resources according to the bit sequence .
  • the terminal determines the side link resource information selected by the second terminal from the one or more second side link resources according to the bit sequence, including: the value of each bit in the bit sequence Is the first indicator, the terminal determines that the side link resource selected by the second terminal from the one or more second side link resources includes all of the one or more second side link resources Link resources. It can be determined by the first indicator that one or more second side link resources are all selected by the second terminal.
  • the terminal determines the side link resource information selected by the second terminal from the one or more second side link resources according to the bit sequence, including: the value of the bit sequence includes at least one first side link resource. An indicator and at least one second indicator, and the terminal determines, according to the bit sequence, a part of the side link resource selected by the second terminal from the one or more second side link resources. It can be determined by the first indicator and the second indicator that one or more second side link resource parts are selected by the second terminal.
  • the method further includes: the terminal receives a first indication from the second terminal, where the first indication is used to indicate that the side link resource selected by the second terminal is in the side link to which it belongs.
  • the proportion of resources Through the first instruction, the second terminal can flexibly select the size of the resource according to the size of the service, thereby avoiding resource waste.
  • an embodiment of the present application provides a method for processing sidelink resources.
  • the method includes: a second terminal determines that a transmission block from a first terminal is successfully received; and the transmission block indicates that the first terminal is on the first side.
  • the transmission block transmitted on the uplink resource; the second terminal sends a resource selection indication to the first terminal, and the resource selection indication is used to instruct the second terminal to check one or more second side uplinks for retransmission of the transmission block. The result of resource selection.
  • the method further includes: the second terminal sends confirmation information to the first terminal.
  • an embodiment of the present application provides an apparatus for processing side link resources, which can implement the method in any possible implementation manner of the first aspect or the first aspect/third aspect or the third aspect. Therefore, The beneficial effects in any possible implementation manner of the first aspect or the first/third aspect or the third aspect can also be achieved.
  • the side link resource processing device may be a second terminal, or a device that can support the second terminal to implement the method in the first aspect or the first aspect/third aspect or any possible implementation manner of the third aspect , For example, applied to the chip in the second terminal.
  • the device can implement the above method by software, hardware, or by hardware executing corresponding software.
  • an embodiment of the present application provides an apparatus for processing side link resources, including: a determining unit, configured to determine that a transmission block from a first terminal is successfully received; the transmission block is that the first terminal is in the first side row The transmission block transmitted on the link resource; the communication unit is used to send a resource selection indication to the first terminal, and the resource selection indication is used to instruct the device to retransmit the transmission block for one or more second side uplink resources The result of the selection.
  • the third terminal can also listen to the resource indication information.
  • the communication unit is further configured to send confirmation information to the first terminal, and the confirmation information is used to indicate that the device successfully receives the transmission block.
  • the resource selection indication includes a bit sequence, and the bit sequence is specifically used to indicate the information of the side link resource selected by the apparatus from the one or more second side link resources.
  • the value of each bit in the bit sequence is the first indicator
  • the side link resource selected by the device is all the second side link resources among the one or more second side link resources. Side link resources.
  • the value of the bit sequence includes at least one first indicator and at least one second indicator, and the bit sequence is specifically used to instruct the device to select from one or more second side uplink resources. Part of the side link resource information.
  • the communication unit is further configured to send a first indication to the first terminal, and the first indication is used to indicate that the side link resource selected by the device is in the side link resource to which it belongs. proportion.
  • the resource selection indication includes a bit sequence, and the bit sequence is specifically used to indicate that the device does not select a side link resource from the one or more second side link resources.
  • the value of each bit in the bit sequence is the second indicator.
  • an embodiment of the present application provides an apparatus for processing side link resources.
  • the apparatus may include: a communication unit and a processing unit.
  • the communication unit may be a communication interface or an interface circuit.
  • the processing unit may be a processor.
  • the processing unit executes the instructions stored in the storage unit, so that the second device implements the first aspect or the method described in any one of the possible implementation manners of the first aspect.
  • the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface.
  • the processor, the communication interface and the memory are coupled with each other.
  • an embodiment of the present application provides an apparatus for processing side link resources.
  • the apparatus can implement the second aspect or any possible implementation of the second aspect, and therefore can also implement the second aspect or the first aspect.
  • Two aspects are the beneficial effects in any possible implementation manner.
  • the device for processing side link resources may be a terminal, or a device that can support the terminal to implement the second aspect or any possible implementation manner of the second aspect, for example, a chip applied to the terminal.
  • the device can implement the above method by software, hardware, or by hardware executing corresponding software.
  • an embodiment of the present application provides an apparatus for sidelink resource processing, including: a communication unit, configured to obtain a resource selection instruction from a second terminal, and the resource selection instruction is used to instruct the second terminal
  • the transmission block transmits the selection result of one or more second side uplink resources;
  • the transmission block is the transmission block that the communication unit transmits to the second terminal on the first side uplink resource;
  • the processing unit is used to select according to the resource Instruct to determine the result of the second terminal's selection of one or more second side uplink resources.
  • the communication unit is further configured to receive confirmation information from the second terminal, where the confirmation information is used to indicate that the second terminal successfully receives the transmission block.
  • the resource selection indication includes a bit sequence
  • the bit sequence is specifically used to indicate that the second terminal does not select a side link resource from one or more second side link resources, and correspondingly, processing
  • the unit is specifically configured to determine, according to the bit sequence, that the second terminal does not select the side link resource from the one or more second side link resources.
  • the value of each bit in the bit sequence is the second indicator, and the processing unit determines that the second terminal does not select the side link resource from the one or more second side link resources.
  • the resource selection indication includes a bit sequence
  • the bit sequence is specifically used to instruct the second terminal to select side link resource information from one or more second side link resources
  • process The unit is specifically configured to determine the side link resource information selected by the second terminal from the one or more second side link resources according to the bit sequence.
  • the value of each bit in the bit sequence is the first indicator
  • the processing unit determines that the side link resource selected by the second terminal from the one or more second side link resources includes All of the one or more second side uplink resources; or, the value of the bit sequence includes at least one first indicator and at least one second indicator, and the processing unit determines the first indicator according to the bit sequence Part of the side link resources selected by the second terminal from one or more second side link resources.
  • the communication unit is further configured to receive a first indication from the second terminal, and the first indication is used to indicate that the side link resource selected by the second terminal is in the side link to which it belongs. The proportion of resources.
  • an embodiment of the present application provides an apparatus for processing side link resources.
  • the apparatus may include: a communication unit and a processing unit.
  • the communication unit may be a communication interface or an interface circuit.
  • the processing unit may be a processor.
  • the processing unit executes the instructions stored in the storage unit, so that the device implements the second aspect or the method described in any one of the possible implementation manners of the second aspect.
  • the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface.
  • the processor, the communication interface and the memory are coupled with each other.
  • the embodiments of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program or instruction.
  • the computer program or instruction runs on the computer, the computer can execute the operations as described in the first aspect to the first aspect.
  • the embodiments of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program or instruction.
  • the computer program or instruction When the computer program or instruction is run on a computer, the computer executes operations such as the second aspect to the first aspect.
  • the embodiments of the present application provide a computer program product including instructions.
  • the instructions run on a computer, the computer executes various possible implementations of the first aspect or the first/third aspect or the third aspect.
  • the present application provides a computer program product including instructions, which when the instructions run on a computer, cause the computer to execute the side link described in the second aspect or various possible implementations of the second aspect The method of resource processing.
  • an embodiment of the present application provides a device for processing side-link resources.
  • the device for processing side-link resources includes a processor and a memory.
  • the memory stores instructions. When the instructions are executed by the processor, The method for processing side link resources as described in the first aspect or the first aspect/third aspect or various possible implementation manners of the third aspect is implemented.
  • an embodiment of the present application provides a device for processing side-link resources.
  • the device for processing side-link resources includes a processor and a memory.
  • the memory stores instructions that are executed by the processor. , To implement the side link resource processing method as described in the second aspect or various possible implementation manners of the second aspect.
  • an embodiment of the present application provides a chip that includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the first aspect or the first aspect/the first aspect.
  • the communication interface is used to communicate with other modules outside the chip.
  • an embodiment of the present application provides a chip that includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the second aspect or each of the second aspect.
  • the communication interface is used to communicate with other modules outside the chip.
  • the chip provided in the embodiment of the present application further includes a memory for storing computer programs or instructions.
  • an embodiment of the present application provides a communication system, which includes any one or more of the following: the third aspect and the side link resource processing described in the various possible implementations of the third aspect , The device for processing side link resources described in the fourth aspect and various possible implementations of the fourth aspect.
  • any device or computer storage medium or computer program product or communication system provided above is used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the corresponding method provided above The beneficial effects of the corresponding solutions will not be repeated here.
  • Figure 1 is a communication type of communication between a car and anything provided by an embodiment of the application
  • FIG. 2 is a schematic structural diagram of a communication system applicable to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 4 is a schematic diagram of a first terminal reserving side link resources according to an embodiment of this application.
  • FIG. 5 is a schematic flow chart 1 of a method for processing side link resources according to an embodiment of this application;
  • FIG. 6 is a second schematic flow diagram of a method for processing side link resources according to an embodiment of this application.
  • FIG. 7 is a schematic diagram of mapping between side link resources and bit sequences provided by an embodiment of the application.
  • FIG. 8 is a schematic diagram of a side link resource division ratio provided by an embodiment of the application.
  • FIG. 9 is a schematic diagram of a second terminal selecting remaining side link resources according to an embodiment of the application.
  • FIG. 10 is a third schematic flowchart of a method for processing side link resources according to an embodiment of this application.
  • FIG. 11 is a schematic structural diagram 1 of an apparatus for processing side link resources according to an embodiment of this application.
  • FIG. 12 is a second schematic structural diagram of a side link resource processing apparatus provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of a chip provided by an embodiment of the application.
  • words such as “first” and “second” are used to distinguish the same items or similar items that have substantially the same function and effect.
  • the first terminal and the second terminal are only used to distinguish between different terminals, and the sequence of them is not limited.
  • words such as “first” and “second” do not limit the quantity and execution order, and words such as “first” and “second” do not limit the difference.
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • the following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • indication may include direct indication and indirect indication, as well as explicit indication and implicit indication.
  • the information indicated by a certain piece of information (the first indication information described below) is called the information to be instructed.
  • the information to be indicated may be directly indicated, wherein the information to be indicated itself or the index of the information to be indicated, etc.
  • the information to be indicated may also be indicated indirectly by indicating other information, where there is an association relationship between the other information and the information to be indicated.
  • Sidelink refers to: defined for the direct communication between the terminal and the terminal. That is, the link between the terminal and the terminal for direct communication without forwarding through the base station.
  • Sidelink resources refer to resources used when transmitting sidelink service data and control information on the sidelink between terminals.
  • Resource collision means that two or more terminals have selected the same Sidelink resource.
  • LTE long time evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • PLMN public land mobile network
  • D2D device-to-device
  • M2M machine to machine
  • 5G communication system car networking system, etc.
  • Figure 2 shows a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • the communication system includes: one or more first terminals 10 and one or more second terminals 20. It should be understood that a first terminal 10 and a second terminal 20 are shown in FIG. 2.
  • first interface for direct communication between the first terminal 10 and the second terminal 20
  • first interface may be referred to as a PC5 interface
  • the transmission link used for communication between the first terminal 10 and the second terminal 20 on the PC5 interface may be referred to as a side link.
  • the first terminal 10 and the second terminal 20 may be in a scene without mobile network coverage, or in a scene with mobile network coverage.
  • the first terminal 10 and the second terminal 20 may be located in the same cell or in different cells.
  • the communication system shown in FIG. 2 further includes: a third terminal 50.
  • the third terminal 50 may compete with the first terminal 10 for the side link resources reserved by the first terminal 10 but there are remaining side link resources used for retransmission.
  • the communication system shown in FIG. 2 further includes: a network device 30 provided for the first terminal 10/third terminal 50 and a network device 40 provided for the second terminal 20.
  • the network device 30 and the network device 40 that provide services for the first terminal 10/the third terminal 50 and the second terminal 20 may be the same network device.
  • the interface between the first terminal 10/the third terminal 50 and the network device 30, and the interface between the second terminal 20 and the network device 40 may be referred to as a second interface.
  • This second interface may be referred to as a Uu interface.
  • the names of the first interface and the second interface described above are only examples, and the embodiments of the present application do not limit the names of the first interface and the second interface.
  • the terminal in the embodiment of the present application may be the first terminal 10 or the third terminal 50.
  • the terminal is the first terminal 10 as an example.
  • the first terminal 10 may use the first side link resource on the side link to send the transport block to the second terminal.
  • the first terminal 10 may determine two or more side link resources (including the first side link resource) corresponding to the transmission block, and the two or More than two side link resources may be configured by the network device 30 for the first terminal 10, or may be selected by the first terminal 10 from a pre-configured side link resource pool, which is not limited in the embodiment of the present application.
  • One side link resource A among the two or more side link resources is used to send the initial transmission transport block to the second terminal.
  • the remaining side uplink resources of the two or more side uplink resources except the side uplink resource A are used to retransmit the transmission block.
  • a terminal is a device with wireless communication capabilities that can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted. It can also be deployed on the water (such as ships, etc.). It can also be deployed in the air (for example, on airplanes, balloons, satellites, etc.).
  • the terminal is also called user equipment (UE), mobile station (MS), mobile terminal (MT), and terminal equipment, etc., which provide users with voice and/or data connectivity. equipment.
  • terminals include handheld devices with wireless connection functions, vehicle-mounted devices, and so on.
  • the terminal can be: mobile phone (mobile phone), tablet computer, notebook computer, palm computer, mobile internet device (MID), wearable device (such as smart watch, smart bracelet, pedometer, etc.), In-vehicle equipment (for example, cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.), virtual reality (VR) equipment, augmented reality (AR) equipment, industrial control (industrial control) Wireless terminals, smart home equipment (for example, refrigerators, TVs, air conditioners, electric meters, etc.), smart robots, workshop equipment, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart The wireless terminal in the smart grid, the wireless terminal in the transportation safety, the wireless terminal in the smart city, or the wireless terminal in the smart home, and the flying equipment (for example, smart Robots, hot air balloons, drones, airplanes), etc.
  • MID mobile internet device
  • wearable device such as smart watch, smart bracelet, pedometer, etc.
  • In-vehicle equipment for example, cars, bicycles
  • the terminal is a terminal device that often works on the ground, such as a vehicle-mounted device.
  • chips deployed in the above-mentioned devices such as System-On-a-Chip (SOC), baseband chips, etc., or other chips with communication functions may also be referred to as terminals.
  • SOC System-On-a-Chip
  • baseband chips etc.
  • other chips with communication functions may also be referred to as terminals.
  • the terminal may be a vehicle with corresponding communication function, or a vehicle-mounted communication device, or other embedded communication device, or a user-held communication device, including a mobile phone, a tablet computer, and the like.
  • the terminal may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • a network device is an entity that can be used to transmit or receive signals in conjunction with a terminal.
  • it can be an access point (Access Point, AP) in WLAN, an eNB or eNodeB in LTE, or a relay station or access point, or vehicle-mounted equipment, wearable devices, and network equipment in the future 5G network.
  • AP Access Point
  • eNB evolved Node B
  • eNodeB eNodeB
  • relay station or access point e.g., a relay station or access point
  • vehicle-mounted equipment wearable devices
  • network equipment in the PLMN network that will evolve in the future.
  • the network equipment provides services for the cell
  • the terminal communicates with the network equipment through the transmission resources (for example, time domain resources, or frequency domain resources, or time-frequency resources) used by the cell.
  • the cell may be a cell corresponding to a network device (such as a base station), a cell may belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here may include: metro cell, micro cell ( Micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • FIG. 3 shows a schematic diagram of the hardware structure of a communication device provided by an embodiment of the present application.
  • the communication device includes a processor 41, a communication line 44, and at least one transceiver 43.
  • the processor 41 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 44 may include a path to transmit information between the aforementioned components.
  • the transceiver 43 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • RAN radio access network
  • WLAN wireless local area networks
  • the communication device may further include a memory 42.
  • the memory 42 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • the memory can exist independently and is connected to the processor through the communication line 44. The memory can also be integrated with the processor.
  • the memory 42 is used to store computer execution instructions for executing the solution of the application, and the processor 41 controls the execution.
  • the processor 41 is configured to execute computer-executable instructions stored in the memory 42 to implement a method for processing sidelink resources provided in the following embodiments of the present application.
  • the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 41 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 3.
  • the communication device may include multiple processors, such as the processor 41 and the processor 45 in FIG. 3.
  • processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • the first terminal may retransmit the transmission block in a retransmission manner based on blind retransmission, and the first terminal initially transmits the transmission block (Transmission Block, TB) to the second terminal.
  • the transmission block may include service data and side link control information (SCI).
  • SCI includes the SF gap field, which is used to indicate the time domain interval between initial transmission and retransmission.
  • the value of the SF gap field may be a preset value. If the preset value of this field is 0, it means that there is no need to retransmit. If the preset value of this field is an integer greater than 0, it means that the first terminal needs to resend the transmission block to the second terminal.
  • the first terminal can determine whether the transmission block needs to be retransmitted according to the SF gap field.
  • the blind retransmission process will not change due to the result of the initial transmission, regardless of whether the second terminal successfully receives it.
  • the first terminal will re-send the transmission block to the second terminal.
  • blind retransmission also needs to indicate in the SCI whether blind retransmission is required, and the information about the reserved resources for blind retransmission. Therefore, blind retransmission does not involve the reservation of side link resources for retransmission. The situation of use.
  • the first terminal can also retransmit the transport block in a feedback-based retransmission manner.
  • the same transport block supports four transmissions in network communication as an example for illustration. This solution is also applicable to other transmission times.
  • the four transmissions may include one initial transmission and three retransmissions.
  • FIG. 4 is a schematic diagram of a first terminal reserving a side uplink resource, where the abscissa represents time, and the ordinate represents transmission frequency.
  • Side link resource 1 is a side link resource used for initial transmission of the transport block
  • side link resource 2 to side link resource 4 are side link resources used for retransmission.
  • the first terminal sends a transmission block to the second terminal on the side link resource 1. That is, the initial transmission of the transmission block is realized.
  • the side link resource 1 includes the SCI.
  • the first terminal will indicate the reserved side link resource for three retransmissions in the SCI. For example, side link resource 2 to side link resource 4. If the first terminal receives the response information from the second terminal, it means that the second terminal successfully receives the transmission block sent by the first terminal on the side link resource 1. Therefore, the first terminal does not need to retransmit the transmission block to the second terminal. Since the second terminal successfully receives the transmission block sent by the first terminal on the side link resource 1, the side link resource reserved by the first terminal has surplus.
  • the first terminal will release the remaining side link resources 2 to 3 when the response information is received.
  • Any terminal (including the first terminal, the second terminal, and the third terminal) can be used. Contend to use the released side link resource 2 to side link resource 4.
  • the any terminal can select the side link resource from the side link resource 2 to the side link resource 4 by means of listening before talk (LBT) or long term sensing (Long term sensing).
  • the process of multiple terminals competing for side link resources includes listening to the idle state of side link resources in a sensing window. Select the side link resource to be used in the resource selection window. Each terminal will be assigned a random value. In order to prevent resource collision, the random value corresponding to each terminal is different. Each time the multiple terminals listen, the random value corresponding to each of the multiple terminals will be reduced by 1. When there is a terminal with a random value of 0, the competing side link resource can be given the random value 0 terminal selection.
  • the random value corresponding to terminal 1 is 8, and the random value corresponding to terminal 2 is 6.
  • Terminal 1 and terminal 2 listen to the idle status of side link resources in the listening window. If it is idle, terminal 1 and The random value of the terminal 2 is reduced by 1, and the listening process is repeated until the random value of the terminal 2 is reduced to 0, and then the terminal 2 can obtain the side link resource.
  • an embodiment of the present application provides a method for processing side link resources.
  • the following is a description of a side link provided by the embodiment of the present application in conjunction with FIG. 5
  • the method of link resource processing is explained in detail.
  • the embodiment of the present application can be applied to NR-V2X network communication, and can also be applied to any communication scenario where there is retransmission resource reservation and retransmission resource processing, which is not limited in the embodiment of the present application.
  • the steps executed by the second terminal in the method for processing side link resources in the embodiment of the present application may also be executed by a chip applied to the second terminal.
  • the steps performed by the first terminal/third terminal may also be performed by a chip applied in the first terminal/third terminal.
  • a method for processing side link resources is executed by the first terminal/third terminal and the second terminal as an example.
  • FIG. 5 shows a schematic flowchart of a method for processing sidelink resources provided by an embodiment of the present application, and the method includes:
  • the second terminal determines that the transmission block from the first terminal is successfully received.
  • the transmission block is a transmission block transmitted by the first terminal on the first side uplink resource.
  • the transmission block may be an initial transmission transmission block.
  • the first transmission block is the transmission block that the first terminal transmits to the second terminal for the first time (first time).
  • the first side link resource may be a side link resource used to transmit the first transmission transport block.
  • the first side link resource may be the side link resource 1 in FIG. 4.
  • the transmission block is a retransmission transmission block.
  • the retransmission transmission block is the transmission block that the first terminal transmits to the second terminal for the Mth time.
  • the retransmission transmission block is the transmission block that the first terminal transmits to the second terminal for the first time.
  • M is an integer greater than or equal to 2, and M is less than or equal to the maximum number of retransmissions of the first terminal.
  • the first side uplink resource is the side uplink resource used for transmitting the retransmission transport block.
  • the first side link resource may be any one of the side link resource 2 to the side link resource 4 in FIG. 4.
  • the method provided in the embodiment of the present application may further include: the first terminal sends a transmission block to the second terminal on the first side uplink resource.
  • the second terminal sends a resource selection instruction to the first terminal, so that the first terminal/third terminal receives the resource selection instruction from the second terminal.
  • the resource selection indication is used to indicate a selection result of the second terminal on one or more second side uplink resources used to retransmit the transmission block.
  • the second terminal informs the first terminal/third terminal whether or not the side link resource is selected from the one or more second side link resources or which side link resources are selected through the resource selection instruction.
  • the one or more second side link resources may be side link resource 2 ⁇ side link resource in FIG. 4 Any of 4. It is worth noting that if the first side link resource is side link resource 2, the one or more second side link resources may be side link resource 3 to side link resource in FIG. 4 Any one of the road resources 4.
  • the second terminal sends the resource selection instruction to the first terminal in the embodiment of the present application
  • the first terminal can receive the resource selection instruction from the second terminal
  • other terminals for example, the first terminal
  • Three terminal can also receive a resource selection instruction from the second terminal.
  • the third terminal receiving the resource selection instruction refer to the action performed by the first terminal in the following embodiments.
  • all operations are performed by The steps performed by the first terminal can all be performed by the third terminal.
  • the third terminal can replace the first terminal.
  • the third terminal may determine the interactive information between the first terminal and the second terminal by detecting the side link between the first terminal and the second terminal, and the interactive information may be sent by the first terminal to the second terminal.
  • the side link control information related to the resource indication may also be the side link feedback control information sent by the second terminal to the first terminal. Therefore, the third terminal can not only determine the information of one or more second side link resources according to the side link control information of the first side link resource.
  • the selection result of the one or more second side link resources may also be determined according to the resource selection indication fed back by the second terminal.
  • S302 in the embodiment of the present application can be implemented in the following manner: the second terminal sends a resource selection instruction to the first terminal on the side link, so that the first terminal/third terminal is at the side The resource selection instruction from the second terminal is received on the uplink.
  • the side link is a link established between the first terminal and the second terminal for transmitting side link services (for example, transmission blocks).
  • the first terminal/third terminal determines, according to the resource selection instruction, a selection result of the second terminal for the one or more second side uplink resources.
  • the one or more second side link resources are reserved unused remaining resources after the first terminal successfully sends the transport block to the second terminal.
  • the embodiment of the application provides a method for processing sidelink resources. After the second terminal successfully receives the transmission block from the first terminal, the second terminal can inform the first terminal through the confirmation message that the second terminal has successfully received the transmission. Block, and can inform the first terminal/third terminal of the selection result of one or more second side uplink resources for retransmission of the transport block through the resource selection indication.
  • the selection of side-link resources avoids the delay caused by the interception process when multiple terminals compete for the selection of side-link resources, which improves the utilization of side-link resources, and at the same time Reduce the probability of occurrence of side link resource collisions.
  • the method provided in the embodiment of the present application may further include: the second terminal determines information about one or more second side uplink resources.
  • the second terminal in the embodiment of the present application determines information about one or more second side link resources, which can be implemented in the following manner: the first side link resource carries the side link Road control information, and side link control information is used to indicate information about one or more second side link resources. Therefore, the second terminal may determine information about one or more second side link resources according to the side link control information.
  • the second terminal in the embodiment of the present application determines information about one or more second side uplink resources, which can be implemented in the following manner: the first terminal sends instruction information to the second terminal, The indication information is used to indicate information about one or more second side uplink resources.
  • the method provided in the embodiment of the present application further includes:
  • the second terminal sends confirmation information to the first terminal on the side link, so that the first terminal receives the confirmation information from the second terminal on the side link.
  • the confirmation information is used to indicate that the second terminal successfully receives the transmission block.
  • the confirmation information may be ACK information.
  • successful reception in the embodiment of the present application can also be replaced by correct reception or correct decoding.
  • unsuccessful reception may also be replaced by incorrect reception or incorrect decoding.
  • successful reception and unsuccessful reception are taken as examples.
  • the confirmation information and the foregoing resource selection indication may be carried in the same information.
  • the second terminal sends sidelink feedback control information (SFCI) to the first terminal.
  • SFCI sidelink feedback control information
  • the SFCI includes confirmation information and resource selection instructions, and the SFCI can be carried by a sidelink feedback channel (Physical sidelink feedback channel, PSFCH).
  • PSFCH Physical sidelink feedback channel
  • the confirmation information and the resource selection instruction may also be carried in different information, which is not limited in the embodiment of the present application.
  • the resource selection indication includes a bit sequence, and the bit sequence is used to indicate a selection result of the second terminal on one or more second side link resources.
  • the bit sequence may include one or more bits, and different bit sequence values correspond to different selection results.
  • Example 1 A situation where the second terminal selects a side link resource from one or more second side link resources
  • the bit sequence is specifically used to indicate the information of the side link resource selected by the second terminal from the one or more second side link resources.
  • the second terminal may select all the side link resources from the one or more second side link resources, or select part of the side link resources from the one or more second side link resources .
  • the information of the side link resource may be the time domain position of the side link resource or the number of the side link resource.
  • the number of side link resources may be negotiated by the first terminal/third terminal and the second terminal, or determined by the second terminal and notified to the first terminal/third terminal, or determined by the first terminal/third terminal and notified The second terminal.
  • the first terminal/the third terminal determines the side link resource information selected by the second terminal from the one or more second side link resources according to the bit sequence.
  • S3031 in the embodiment of the present application may be specifically implemented in the following manner:
  • each bit in the bit sequence is the first indicator, and the first terminal/third terminal determines the side link selected by the second terminal from the one or more second side link resources
  • the resource includes all the second side link resources in the one or more second side link resources. That is, it is determined that all the one or more second side uplink resources are selected by the second terminal.
  • the first indicator is “1" and the second indicator is "0" as an example
  • the specific bit sequence is shown in Table 1 and Table 2: The value of each bit in the bit sequence is 1, indicating that the side link resource selected by the second terminal includes the one or more second side link resources All side link resources in. That is, the value of each bit in the bit sequence is 1, indicating that the side link resource selected by the second terminal includes side link resource 2 to side link resource 4.
  • bit sequence may be 11.
  • Bit sequence Select result 00 Any one of side link resource 2 to side link resource 4 is not selected
  • bit sequence may be 111.
  • Bit sequence Select result 000 Any one of side link resource 2 to side link resource 4 is not selected 001 Select side link resource 2 010 Select side link resource 3 011 Select side link resource 4 100 Select side link resource 2 and side link resource 3 101 Select side link resource 2 and side link resource 4 110 Select side link resource 3 and side link resource 4 111 Select side link resource 2 ⁇ side link resource 4
  • the second terminal When the second terminal selects all the side link resources of the one or more second side link resources, and the first terminal/the third terminal is competing for resources, it can determine the one or more resources according to the resource selection instruction.
  • the second side uplink resource has been occupied by the second terminal and can no longer be selected by the first terminal/third terminal, so that the first terminal/third terminal excludes the one or more second side uplinks Resources to select other side link resources.
  • S3031 in the embodiment of the present application can also be specifically implemented in the following manner:
  • the value of the bit sequence includes at least one first indicator and at least one second indicator, and the bit sequence is specifically used to indicate the partial side chain selected by the second terminal from the one or more second side chain resources Road resource information.
  • the first terminal/third terminal determines part of the side link resources selected by the second terminal from the one or more second side link resources according to the bit sequence.
  • the second terminal selects part of the side link resources of the one or more second side link resources
  • the first terminal/the third terminal is competing for resources, it will exclude the second terminal from being selected according to the resource selection instruction.
  • Part of the side link resources selected by the terminal Competitive selection is performed on the side link resources that are not selected by the second terminal among the one or more second side link resources.
  • the one or more second side link resources including the side link resource 2 to the side link resource 4 are still taken as an example for description.
  • the side link resource selected by the second terminal includes the side link resource 2.
  • the side link resource 2 is selected.
  • the lowest bit in the bit sequence can be determined from left to right, that is, the rightmost bit is the lowest bit in the bit sequence.
  • the leftmost bit is the highest bit in the bit sequence.
  • the selected side link resource is based on the size of the single transmission resource in multiple transmissions, starting with the side link resource after the confirmation information is received. Start resource point.
  • the second terminal needs to select the side link resource from the starting resource point. If the second terminal needs to select two side link resources, referring to Figure 4, when the first terminal receives the ACK message after transmitting the transport block for the first time on the side link resource 1, the resources selected by the second terminal include the side link Resource 2 and side link resource 3, and side link resource 4 can be selected by other terminals.
  • the resources selected by the second terminal include the side link resource 3 and the side link resource 4.
  • the selected side link resource is still based on the size of the single transmission resource in multiple transmissions as the granularity, and the side link resource 2 to the side link resource is still in accordance with the time domain.
  • Resource 4 is selected, but the difference is that the second terminal can select the side link resource from any resource point as the resource starting point, and the time domain interval between the selected side link resources can also be different from that of adjacent two. Time domain interval between two side link resources.
  • bit sequence is 100 or 10, indicating the side link resource selected by the second terminal Including side link resource 2 and side link resource 3.
  • bit sequence may be 10, which means that the second terminal selects side link resource 2 and side link resource from the 3 side link resources.
  • Link resource 3 Referring to Table 2, taking the number of bits included in the bit sequence of 3 as an example, the bit sequence is 100, indicating that the second terminal selects side link resource 2 and side link resource from the 3 side link resources 3.
  • the side link resource selected by the second terminal includes one of the three side link resources. Uplink resources 3.
  • the side link resource selected by the second terminal includes the side link resource 4 of the 3 side link resources.
  • the side link resource selected by the second terminal includes 3 side rows The side link resource 2 and the side link resource 4 in the link resources.
  • bit sequence when the bit sequence is 101, it means that the second terminal selects the side link resource 2 and the side link resource 4 from the three side link resources.
  • the side link resource selected by the second terminal includes one or more second side links The side link resource 3 and the side link resource 4 in the resources.
  • bit sequence when the bit sequence is 110, it means that the second terminal selects the side link resource 3 and the side link resource 4 from the three side link resources.
  • the second terminal in the embodiment of the present application may also indicate the resource selection result to the first terminal/third terminal in the following manner.
  • each side link resource in one or more second side link resources is associated with at least one bit, and when at least one bit associated with any one side link resource is the first indicator, it means that the side link resource is associated with at least one bit.
  • the link resource is selected, and when at least one bit associated with any side link resource is the second indicator, it means that the side link resource is not selected.
  • side link resource 2 is associated with the least significant bit
  • side link resource 3 is associated with the middle bit
  • side link resource 4 is associated
  • the most significant bit if the bit sequence is 101, it means that the side link resource 2 and the side link resource 4 are selected, and the side link resource 3 is not selected.
  • the method provided in the embodiment of the present application further includes:
  • the second terminal sends a first instruction to the first terminal on the side link, so that the first terminal/third terminal receives the first instruction from the second terminal.
  • the first indication is used to indicate the proportion of the side link resources selected by the second terminal in the side link resources to which they belong, that is, the selected side link resources can be the same as the single transmission resource among multiple transmissions.
  • the size of some resources is granular.
  • the first indication may also be represented by a bit sequence, and the bit sequence of the first indication and the bit sequence of the selection result may form a new bit sequence.
  • 8-1 in FIG. 8 indicates that the proportion of the side link resource selected by the second terminal in the side link resource to which it belongs is 25%
  • 8-2 in FIG. The ratio of the side link resources selected by the second terminal to the side link resources to which it belongs is 50%
  • 8-3 in Figure 8 indicates that the side link resources selected by the second terminal are in the side link resources to which it belongs.
  • the ratio in is 75%
  • 8-4 in FIG. 8 indicates that the ratio of the side link resource selected by the second terminal in the side link resource to which it belongs is 100%.
  • the foregoing is only an exemplary description of the embodiments of the present application.
  • the first indication may also be used to indicate other ratio values, which are not limited in the embodiments of the present application.
  • the first indication can also form a bit sequence including P bits together with the bit sequence.
  • the first N bits of the P bits are used to indicate the result of resource selection, and the last PN bit is used to indicate the selected resource. % Of.
  • Figure 9 shows that the first terminal receives the ACK message after the initial transmission, and the second terminal selects two side link resources, namely side link resource 2 and side link resource 3, where, The proportion of the side link resource selected by the second terminal in the side link resource 2 is 50%, the proportion in the side link resource 3 is also 50%, and the remaining 50% in the side link resource 2. %, the remaining 50% of the side link resource 3, and the side link resource 4 can be selected by other terminals.
  • bit sequence 1 is used to represent the bit sequence of the selection result
  • bit sequence 2 is used to represent the bit sequence of the first indication. For example, a bit value of 0000 indicates that the second terminal has not selected the side link resource, a bit value of 0100 indicates that the second terminal has selected 25% of the side link resource 2, and a bit value of 0101 indicates that the second terminal has selected the side link resource. 50% of link resource 2.
  • bit sequence 2 may be used to indicate the proportion of each side link resource in the selection result, and may also be used to indicate the proportion of all side link resources in the selection result that are arranged sequentially in time sequence.
  • the first terminal/third terminal determines each side link resource according to the first indication and the resource selection indication. Part of the side link resources selected by the second terminal among the side link resources. Therefore, the part of the side link resources is avoided, and the other unselected side link resources in each side link resource are competitively selected.
  • the second terminal can flexibly select the size of the resource according to the size of the service, thereby avoiding resource waste.
  • Example 2 The case where the second terminal does not select a side link resource from one or more second side link resources
  • S303 in the embodiment of the present application may also be:
  • the first terminal/the third terminal determines, according to the bit sequence, that the second terminal does not select a side link resource from the one or more second side link resources.
  • the value of each bit in the bit sequence is the second indicator, and the first terminal/third terminal determines that the second terminal does not select from the one or more second side uplink resources Side link resources.
  • the value of each bit in the bit sequence is 0, indicating that the second terminal has not selected a side link resource from one or more second side link resources .
  • the bit sequence when the bit sequence is two bits, the bit sequence may be 00, and referring to Table 2, when the bit sequence is three bits, the bit sequence may be 000.
  • the first terminal/third terminal can directly perform the operation on the one or more second side link resources.
  • Competitive choice When the second terminal does not select any side link resource of the one or more second side link resources, the first terminal/third terminal can directly perform the operation on the one or more second side link resources.
  • the resource selection indication in the embodiment of the present application may be used to indicate the starting resource point selected by the second terminal from one or more side link resources and the number of resources.
  • An example is described by taking the one or more second side link resources including side link resource 2 to side link resource 4 as an example.
  • the first terminal/the third terminal and the second terminal negotiate to take the side link resource after receiving the ACK information as the starting resource point.
  • the starting resource point is side link resource 2 as shown in FIG. 4, and the number of resources is 2, it means that the second terminal selects the side link resource 2 to side link resource 4.
  • the second terminal selects the side link resource 2 to side link resource 4.
  • the second terminal may choose any one from the side link resource 2 to the side link resource 4 as the starting resource point.
  • each network element such as the first terminal/the third terminal, and the second terminal, includes a hardware structure and/or software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the first terminal/the third terminal, and the second terminal may be divided into functional units according to the above-mentioned method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated in One processing unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • the method of the embodiment of the present application is described above in conjunction with FIG. 5 to FIG. 10, and the device for performing the sidelink resource processing of the foregoing method provided by the embodiment of the present application is described below. Those skilled in the art can understand that the methods and devices can be combined and referenced.
  • the device for processing sidelink resources provided in the embodiments of the present application can execute the above method for processing sidelink resources. , Steps performed by the second terminal.
  • FIG. 11 shows a device for processing side link resources involved in the foregoing embodiment.
  • the device for processing side link resources may include: a processing unit 101, and a communication Unit 102.
  • the device for processing side link resources is the second terminal, or is a chip applied to the second terminal.
  • the communication unit 102 an apparatus for supporting the processing of the side uplink resource, executes S302 performed by the second terminal in the above-mentioned embodiment.
  • the processing unit 101 is configured to support an apparatus for processing side uplink resources to execute S301 performed by the second terminal in the foregoing embodiment.
  • the communication unit 102 is specifically configured to support the apparatus to execute S304 and S305 performed by the second terminal in the foregoing embodiment.
  • the device for processing side link resources is the first terminal/third terminal, or a chip applied to the first terminal/third terminal.
  • the communication unit 102 the apparatus for supporting the processing of the side uplink resource, executes S302 performed by the first terminal/the third terminal in the foregoing embodiment.
  • the processing unit 101 is configured to support the device for processing the side link resource to execute S303 executed by the first terminal/the third terminal in the foregoing embodiment.
  • the processing unit 101 is specifically configured to support the apparatus to execute S3031 and S3032 executed by the first terminal/third terminal in the foregoing embodiment.
  • the communication unit 102 is specifically configured to support the apparatus to execute S305 executed by the first terminal/third terminal in the foregoing embodiment.
  • the communication unit 102 is also specifically configured to support the apparatus to execute S304 executed by the first terminal in the foregoing embodiment. However, the communication unit 102 may not be used to support the third terminal to perform S304.
  • the device for processing side link resources may further include a storage unit.
  • the storage unit is used to store computer program code, and the computer program code includes instructions. If the side link resource processing device is applied to the second terminal, the storage unit can be a storage unit (for example, a register, a cache, etc.) in the chip, or a storage unit in the second terminal located outside the chip. Storage unit (for example, read only memory, random access memory, etc.).
  • FIG. 12 shows a schematic diagram of a possible logical structure of the apparatus for processing side link resources involved in the foregoing embodiment.
  • the device for processing side link resources includes: a processing module 112 and a communication module 113.
  • the processing module 112 is used to control and manage the actions of the side-link resource processing device.
  • the processing module 112 is used to perform information/data processing steps in the side-link resource processing device.
  • the communication module 113 is used to perform information/data sending or receiving steps in a device supporting side link resource processing.
  • the device for processing side link resources may further include a storage module 111 for storing program codes and data in the device for processing side link resources.
  • the device for processing sidelink resources is the second terminal, or is a chip applied to the second terminal.
  • the processing module 112 is used to support the side-link resource processing device to execute the side-link resource processing method provided in the above embodiment, for example, to execute S301 executed by the second terminal in FIG. 5 .
  • the communication module 113 is configured to support the side-link resource processing device to execute the side-link resource processing method provided in the foregoing embodiment, for example, to execute S302 executed by the second terminal in FIG. 5.
  • the communication module 113 is specifically configured to support the device to execute S304 and S305 performed by the second terminal in the foregoing embodiment.
  • the device for processing side link resources is the first terminal/third terminal, or a chip applied to the first terminal/third terminal.
  • the processing module 112 is used to support the side-link resource processing device to execute the side-link resource processing method provided in the above-mentioned embodiment, for example, to execute the method for processing side-link resources in FIG. S303 executed by the terminal.
  • the communication module 113 is configured to support the side-link resource processing device to execute the side-link resource processing method provided in the foregoing embodiment, for example, to execute S302 executed by the first terminal/the third terminal in FIG. 5.
  • the processing module 112 is specifically configured to support the apparatus to execute S3031 and S3032 executed by the first terminal/third terminal in the foregoing embodiment.
  • the communication module 113 is specifically configured to support the apparatus to execute S305 executed by the first terminal/third terminal in the foregoing embodiment.
  • the communication module 113 is also specifically configured to support the device to execute S304 executed by the first terminal in the foregoing embodiment. However, the communication module 113 may not be used to support the third terminal to perform S304.
  • the processing module 112 may be a processor or a controller, for example, a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention.
  • the processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • the communication module 113 may be a transceiver, a transceiver circuit, or a communication interface.
  • the storage module 111 may be a memory.
  • the side link resource processing device involved in the present application may be the one shown in FIG. 3 communication device.
  • FIG. 13 is a schematic structural diagram of a chip 150 provided by an embodiment of the present application.
  • the chip 150 includes one or more (including two) processors 1510 and a communication interface 1530.
  • the chip 150 further includes a memory 1540.
  • the memory 1540 may include a read-only memory and a random access memory, and provides operation instructions and data to the processor 1510.
  • a part of the memory 1540 may also include a non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the memory 1540 stores the following elements, execution modules or data structures, or their subsets, or their extended sets.
  • the corresponding operation is executed by calling the operation instruction stored in the memory 1540 (the operation instruction may be stored in the operating system).
  • One possible implementation manner is that the structures of the chips used by the first terminal/third terminal and the second terminal are similar, and different devices can use different chips to realize their respective functions.
  • the processor 1510 controls the processing operations of any one of the first terminal/the third terminal and the second terminal.
  • the processor 1510 may also be referred to as a central processing unit (CPU).
  • the memory 1540 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1510.
  • a part of the memory 1540 may also include a non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the memory 1540, the communication interface 1530, and the memory 1540 are coupled together by a bus system 1520, where the bus system 1520 may include a power bus, a control bus, and a status signal bus in addition to a data bus.
  • various buses are marked as the bus system 1520 in FIG. 13.
  • the method disclosed in the foregoing embodiments of the present application may be applied to the processor 1510 or implemented by the processor 1510.
  • the processor 1510 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 1510 or instructions in the form of software.
  • the aforementioned processor 1510 may be a general-purpose processor, a digital signal processing (digital signal processing, DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or Other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processing
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 1540, and the processor 1510 reads the information in the memory 1540, and completes the steps of the foregoing method in combination with its hardware.
  • the communication interface 1530 is used to perform the receiving and sending steps of the first terminal/the third terminal and the second terminal in the embodiment shown in FIG. 5.
  • the processor 1510 is configured to execute the processing steps of the first terminal/third terminal and the second terminal in the embodiment shown in FIG. 5.
  • the above communication unit may be an interface circuit or communication interface of the device for receiving signals from other devices.
  • the communication unit is an interface circuit or a communication interface used by the chip to receive signals or send signals from other chips or devices.
  • the instructions stored in the memory for execution by the processor may be implemented in the form of a computer program product.
  • the computer program product may be written in the memory in advance, or it may be downloaded and installed in the memory in the form of software.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • Computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • computer instructions may be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to transmit to another website site, computer, server or data center.
  • a cable such as Coaxial cable, optical fiber, digital subscriber line (DSL)
  • wireless such as infrared, wireless, microwave, etc.
  • the computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk, SSD).
  • a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium.
  • the second terminal or a chip applied to the second terminal executes the side chain provided in the above-mentioned embodiments.
  • the operations performed by the second terminal in the method for processing path resources for example, perform S301, S302, S304, and S305 performed by the second terminal in FIG. 5.
  • a computer-readable storage medium stores instructions.
  • the first terminal/third terminal or the chip applied in the first terminal/third terminal is provided. Perform operations performed by the first terminal/third terminal in the method for processing side link resources provided in the foregoing embodiment, for example, perform S302, S303, S3031, S3032 performed by the first terminal/third terminal in FIG. 5 .
  • first terminal or the chip applied in the first terminal may also execute S304 in the method for processing side link resources provided in the foregoing embodiment.
  • a computer program product including instructions.
  • the computer program product stores instructions.
  • the second terminal or a chip applied to the second terminal executes the side link provided in the above-mentioned embodiments.
  • the operations performed by the second terminal in the resource processing method for example, perform S301, S302, S304, and S305 performed by the second terminal in FIG. 5.
  • a computer program product including instructions is provided.
  • the computer program product stores instructions.
  • the first terminal/third terminal or the chip applied in the first terminal/third terminal is executed.
  • the operations performed by the first terminal/third terminal in the method for processing sidelink resources provided in the foregoing embodiment for example, perform S302, S303, S3031, and S3032 performed by the first terminal/third terminal in FIG. 5.
  • first terminal or the chip applied in the first terminal may also execute S304 in the method for processing side link resources provided in the foregoing embodiment.
  • a chip is provided.
  • the chip is applied to a second terminal.
  • the chip includes at least one processor and a communication interface.
  • the communication interface is coupled to the at least one processor.
  • the processor is used to run instructions to execute the side provided by the above-mentioned embodiment.
  • the operations performed by the second terminal in the uplink resource processing method for example, perform S301, S302, S304, and S305 performed by the second terminal in FIG. 5.
  • a chip is provided.
  • the chip is applied to a first terminal.
  • the chip includes at least one processor and a communication interface, the communication interface is coupled to the at least one processor, and the processor is used to run instructions to execute the
  • the operations performed by the first terminal/third terminal in the method for processing sidelink resources are, for example, performing S302, S303, S3031, and S3032 performed by the first terminal/third terminal in FIG. 5.
  • first terminal or the chip applied in the first terminal may also execute S304 in the method for processing side link resources provided in the foregoing embodiment.
  • a communication system including a first terminal and a second terminal.
  • the communication system can be adapted to the architecture shown in FIG. 2, wherein the second terminal can execute the above-mentioned embodiment Operations performed by the second terminal in the provided method for processing sidelink resources, for example, performing S301, S302, S304, and S305 performed by the second terminal in the method for processing sidelink resources provided in the foregoing embodiment.
  • the first terminal/third terminal may perform the operations performed by the first terminal/third terminal in the method for processing side link resources provided in the foregoing embodiment, for example, performing the side link resource processing provided in the foregoing embodiment S302, S303, S3031, S3032 performed by the first terminal/third terminal in the method.
  • the first terminal may also execute S304 in the method for processing side link resources provided in the foregoing embodiment.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • a software program it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • Computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • computer instructions can be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (digital subscriber line, referred to as DSL) or wireless (such as infrared, wireless, microwave, etc.) means to transmit to another website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or includes one or more data storage devices such as servers, data centers, etc. that can be integrated with the medium.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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

Abstract

Des modes de réalisation de la présente demande concernent un procédé et un dispositif de traitement de ressources de liaison latérale, et un système, qui se rapportent au domaine de la technologie de communication sans fil, et sont utilisés pour traiter des ressources de liaison dans une liaison latérale. Le procédé comprend les étapes suivantes : un deuxième terminal détermine qu'un bloc de transport provenant d'un premier terminal est reçu avec succès, le bloc de transport étant un bloc de transport transmis par le premier terminal sur des premières ressources de liaison latérale ; et le deuxième terminal envoie une indication de sélection de ressources au premier terminal, l'indication de sélection de ressources étant utilisée pour indiquer un résultat de sélection, par le deuxième terminal, d'une ou de plusieurs secondes ressources de liaison latérale destinées à la retransmission d'un bloc de transport. La présente invention peut être appliquée à l'Internet des véhicules, par exemple V2X, LTE-V et V2V, peut être appliquée aux domaines des D2D, de la conduite intelligente, des véhicules intelligents connectés, etc.
PCT/CN2019/109698 2019-09-30 2019-09-30 Procédé et dispositif de traitement de ressources de liaison latérale, et système WO2021062774A1 (fr)

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CN201980100554.XA CN114424596A (zh) 2019-09-30 2019-09-30 一种侧行链路资源处理的方法、装置和系统

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WO2023051086A1 (fr) * 2021-09-30 2023-04-06 华为技术有限公司 Procédé de transmission de données, dispositif terminal et système

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