WO2024092772A1 - Procédé de communication de liaison latérale (sl) et appareil correspondant - Google Patents

Procédé de communication de liaison latérale (sl) et appareil correspondant Download PDF

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Publication number
WO2024092772A1
WO2024092772A1 PCT/CN2022/130041 CN2022130041W WO2024092772A1 WO 2024092772 A1 WO2024092772 A1 WO 2024092772A1 CN 2022130041 W CN2022130041 W CN 2022130041W WO 2024092772 A1 WO2024092772 A1 WO 2024092772A1
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Prior art keywords
time
frequency domain
resource
pscch
transmission
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PCT/CN2022/130041
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English (en)
Chinese (zh)
Inventor
赵群
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/130041 priority Critical patent/WO2024092772A1/fr
Priority to CN202280004103.8A priority patent/CN115997446A/zh
Publication of WO2024092772A1 publication Critical patent/WO2024092772A1/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
    • 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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication technology, and in particular to a sidelink (SL) communication method and device.
  • SL sidelink
  • V2X Vehicle to Everything
  • SL sidelink
  • Internet of Vehicles communication can support multiple radio access technologies (Radio Access Technology, RAT), such as Long Term Evolution Sidelink (LTE SL) and New Radio Sidelink (NR SL).
  • RAT Radio Access Technology
  • LTE SL Long Term Evolution Sidelink
  • NR SL New Radio Sidelink
  • NR SL and LTE SL can dynamically share resources on the same carrier.
  • HARQ Hybrid Automatic Repeat ReQuest
  • ACK Hybrid Automatic Repeat ReQuest
  • PSFCH Physical Sidelink Feedback Channel
  • the embodiments of the present application provide a side link SL communication method and device, which are used to avoid the impact of HARQ-ACK of PSFCH transmission of NR SL on LTE SL transmission.
  • an embodiment of the present application provides a SL communication method, the method comprising:
  • the hybrid automatic repeat request HARQ feedback corresponding to the PSCCH and/or PSSCH transmission is disabled.
  • the enabling or disabling of HARQ-ACK feedback can be determined in combination with the resource selection of PSCCH and/or PSSCH transmission, so that when the selected first time-frequency domain resource causes a conflict between the second time-frequency domain and the third time-frequency domain resources, HARQ-ACK feedback can be disabled, so that the disabling process is more in line with the resource situation, and unnecessary disabling can be avoided.
  • PSFCH can reasonably avoid LTE SL transmission, and the interference of HARQ-ACK feedback to LTE SL transmission can be reduced.
  • the embodiment of the present application provides a communication device, which has some or all functions of the terminal device in the method described in the first aspect above, such as the functions of the communication device can have some or all functions in the embodiments of the present application, and can also have the functions of implementing any one of the embodiments of the present application separately.
  • the functions can be implemented by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may also include a storage module, which is coupled to the transceiver module and the processing module, and stores computer programs and data necessary for the communication device.
  • an embodiment of the present application provides a communication device, which includes a processor.
  • the processor calls a computer program in a memory, the method described in the first aspect is executed.
  • an embodiment of the present application provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the first aspect above.
  • an embodiment of the present application provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the first aspect above.
  • an embodiment of the present invention provides a readable storage medium for storing instructions used by the above-mentioned network device, and when the instructions are executed, the network device executes the method described in the first aspect.
  • the present application also provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect above.
  • the present application provides a chip system, which includes at least one processor and an interface, for supporting a network device to implement the functions involved in the first aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, which is used to store computer programs and data necessary for the network device.
  • the chip system can be composed of a chip, or it can include a chip and other discrete devices.
  • the present application provides a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect above.
  • FIG1 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application.
  • FIG2 is a flow chart of an SL communication method provided in an embodiment of the present application.
  • FIG3 is a flow chart of another SL communication method provided in an embodiment of the present application.
  • FIG4 is a flow chart of another SL communication method provided in an embodiment of the present application.
  • FIG5 is a signaling interaction diagram of an SL communication method provided in an embodiment of the present application.
  • FIG6 is a flow chart of another SL communication method provided in an embodiment of the present application.
  • FIG7 is a flow chart of another SL communication method provided in an embodiment of the present application.
  • FIG8 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • FIG9 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • FIG. 10 is a schematic diagram of the structure of a chip provided in an embodiment of the present application.
  • first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • word “if” as used herein may be interpreted as “at the time of” or “when” or “in response to determining” for the purpose of brevity and ease of understanding, the terms used herein when characterizing the size relationship are “greater than” or “less than”, “higher than” or “lower than”.
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Control Channel
  • PSFCH Physical Sidelink Feedback Channel
  • Orthogonal Frequency Division Multiplexing OFDM
  • TDM Time Division Multiplexing
  • RSRP Reference Signal Receiving Power
  • RSSI Received Signal Strength Indicator
  • SCI Sidelink Control Information
  • HARQ-ACK Hybrid Automatic Repeat Request Ack
  • Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application.
  • the communication system may include, but is not limited to, a network device and a terminal device.
  • the number and form of devices shown in Figure 1 are only used for example and do not constitute a limitation on the embodiment of the present application. In actual applications, two or more network devices and two or more terminal devices may be included.
  • the communication system shown in Figure 1 includes a network device 101 and two terminal devices 102 as an example.
  • the first terminal device 102 and the second terminal device 103 communicate via a Sidelink direct link.
  • the first terminal device 102 may not be directly connected to the network device 101 but may communicate with the network device 101 via the relay of the second terminal device 103, wherein the first terminal device 102 that is not connected to the network device 101 is called a remote UE (remote UE), and the second terminal device 103 that provides a relay function is called a relay UE (relay UE).
  • the remote UE and the relay UE communicate via Sidelink unicast, and this architecture is called U2N (UE to NW, terminal device to network) relay.
  • U2N UE to NW, terminal device to network
  • the technical solutions of the embodiments of the present application can be applied to various communication systems.
  • the third generation (3G) universal mobile communication system (UMTS) long term evolution (LTE) system the fifth generation (5G) mobile communication system, the 5G new radio (NR) system, the sixth generation (6G) mobile communication system or other future new mobile communication systems.
  • the side link in the embodiments of the present application can also be called a side link or a through link.
  • the network device 101 in the embodiment of the present application may include an entity on the network side for transmitting or receiving signals.
  • the network device 101 may be an evolved NodeB (eNB), a transmission point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system.
  • eNB evolved NodeB
  • TRP transmission point
  • gNB next generation NodeB
  • WiFi wireless fidelity
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • the network device provided in the embodiment of the present application may be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit (Control Unit).
  • CU centralized unit
  • DU distributed unit
  • Control Unit Control Unit
  • the CU-DU structure may be used to split the protocol layer of the network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.
  • the terminal device 102 in the embodiment of the present application is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • the terminal device may also be referred to as a terminal device (Terminal), a user equipment (User Equipment, UE), a mobile station (Mobile Station, MS), a mobile terminal device (Mobile Terminal, MT), etc.
  • the terminal device may be a car with communication function, a smart car, a mobile phone (Mobile Phone), a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal device, a wireless terminal device in industrial control (Industrial Control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (Smart Grid), a wireless terminal device in transportation safety (Transportation Safety), a wireless terminal device in smart city (Smart City), a wireless terminal device in smart home (Smart Home), etc.
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.
  • sidelink transmission mode 1 and sidelink transmission mode 2 are used for terminal device direct (Device-To-Device, D2D) communication.
  • Sidelink transmission mode 3 and sidelink transmission mode 4 are used for V2X communication.
  • resource allocation is scheduled by network device 101.
  • network device 101 can send resource allocation information to terminal device 102, and then the terminal device 102 allocates resources to another terminal device, so that the other terminal device can send information to network device 101 through the allocated resources.
  • V2X communication a terminal device with better signal or higher reliability can be used as terminal device 102.
  • the first terminal device mentioned in the embodiment of the present application may refer to the terminal device 102, and the second terminal device may refer to the other terminal device.
  • the communication system described in the embodiment of the present application is to more clearly illustrate the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided by the embodiment of the present application.
  • Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present application is also applicable to similar technical problems.
  • NR SL supports HARQ-ACK feedback for unicast and multicast services.
  • HARQ-ACK feedback information is transmitted via PSFCH. Whether HARQ-ACK feedback is enabled for a PSCCH and/or PSSCH transmission is set by the MAC layer based on the service characteristics.
  • the PSFCH time-frequency resources used for the HARQ-ACK information transmission corresponding to a PSCCH and/or PSSCH transmission are determined based on the time-frequency resources of the PSCCH and/or PSSCH and the high-level (pre) configuration.
  • PSFCH occupies the last three SL OFDM symbols (including AGC symbols and GP symbols) of a slot.
  • PSFCH and PSCCH and/or PSSCH are multiplexed by TDM, and there is a GP symbol between them.
  • the user equipment also known as the terminal equipment, can send only PSCCH and/or PSSCH, only PSFCH, or send both PSCCH/PSSCH and PSFCH.
  • the UE transmitting NR PSCCH/PSSCH and NR PSFCH in one slot may be different, which will cause the receiving power of LTE SL UE working on the same carrier to change.
  • the receiving power of LTE SL users on the part of OFDM symbols occupied by NR SL PSCCH/PSSCH is different from the receiving power on the part of OFDM symbols occupied by NR SL PSFCH. Since the distances of different NR SL UEs from the LTE SL receiving UE may vary greatly, for the LTE SL receiving UE, the difference in receiving power on the two parts of OFDM symbols may also be large.
  • the receiving AGC of the LTE UE will not be able to work near the working point, or it will take time to adjust the AGC working point, affecting the receiving performance of the LTE SL UE.
  • SL communication method provided in any embodiment of the present application can be executed alone, or in combination with possible implementation methods in other embodiments, or in combination with any technical solution in the relevant technology.
  • Figure 2 is a flow chart of a SL communication method provided in an embodiment of the present application.
  • the method is executed by the PSCCH and/or PSSCH transmitter of the first RAT SL, as shown in Figure 2, and the method includes but is not limited to the following steps:
  • the time-frequency domain resources used for PSCCH and/or PSSCH transmission are defined as the first time-frequency domain resources
  • the time-frequency domain resources used for the PSFCH transmission opportunity corresponding to the first time-frequency domain resources are the second time-frequency domain resources
  • the time-frequency domain resources used for the second RAT SL transmission are the third time-frequency domain resources. It can be understood that the transmission includes the PSCCH and/or PSSCH transmission of the second RAT SL. It should be noted that this definition is applicable to each embodiment of the present application and will not be repeated later.
  • the HARQ-ACK feedback in the embodiment of the present application may refer to the HARQ feedback corresponding to the HARQ process.
  • HARQ feedback can be implemented in a variety of ways, for example, feedback ACK when receiving successfully and feedback NACK when receiving failed; or feedback NACK only when receiving failed, and no feedback when receiving successfully; or feedback ACK only when receiving successfully, and no feedback when receiving failed. The present disclosure does not limit this.
  • the time-frequency domain resources of the PSFCH transmission opportunity used for the HARQ-ACK feedback corresponding to the PSCCH and/or PSSCH transmission can be determined according to the first time-frequency domain resources used for the PSCCH and/or PSSCH transmission, that is, there is a certain association relationship between the first time-frequency domain resources and the second time-frequency domain, and the second time-frequency domain resources can be determined when the first time-frequency domain resources are determined.
  • the association relationship may be a high-level configuration or a pre-configuration or a protocol agreement.
  • the second time-frequency domain resources used for HARQ-ACK feedback corresponding to PSCCH and/or PSSCH transmissions may also be configured at a higher level or pre-configured.
  • the third time-frequency domain resources used for SL transmission of the second RAT can be determined. After the second time-frequency domain resources and the third time-frequency domain resources are determined, it can be determined whether there is a conflict between the second time-frequency domain resources and the third time-frequency domain resources.
  • the conflict situation may be that the second time-frequency domain resource overlaps with the third time-frequency domain resource in the time domain; or, the time unit where the second time-frequency domain resource is located overlaps with the third time-frequency domain resource in the time domain.
  • the feedback of HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission is disabled, that is, in the case of a conflict between the second time-frequency domain resources and the third time-frequency domain resources, HARQ-ACK feedback is no longer performed on the PSCCH and/or PSSCH transmission.
  • the PFSCH transmission avoids the SL transmission of the second RAT to ensure the transmission of the second RAT SL.
  • the first RAT may be NR and the second RAT may be LTE.
  • the PSCCH and/or PSSCH transmitter of NRSL may disable the feedback of HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission when the second time-frequency domain resource used by the PSFCH transmission opportunity corresponding to the first time-frequency domain resource conflicts with the third time-frequency domain resource used by the LTESL transmission.
  • disabling the HARQ-ACK feedback corresponding to the PSCCH and/or PSSCH transmission of the first RAT SL includes indicating the disabling of the HARQ-ACK feedback corresponding to the PSCCH/PSSCH transmission in the SCI carried by the PSCCH and/or PSSCH transmission. That is, when the HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission of the first RAT SL determines whether to enable, the SCI carried by the PSCCH/PSSCH transmission of the first RAT SL can indicate the disabling of HARQ-ACK to the receiving end of the PSCCH and/or PSSCH transmission of the first RAT SL.
  • disabling HARQ feedback means that the transmitting device notifies the receiving device through the information field in the direct control information (SCI) that HARQ feedback is not required for the PSCCH/PSSCH transmission. Thus, the receiving device will not feedback HARQ to the transmitting device through the PSFCH.
  • SCI direct control information
  • enabling HARQ feedback means that the transmitting device notifies the receiving device through the information field in the direct control information (SCI) that HARQ feedback is required for the PSCCH/PSSCH transmission.
  • SCI direct control information
  • the receiving device will feedback HARQ to the transmitting device through the corresponding PSFCH.
  • the method provided in the embodiment of the present application is only performed for the time-frequency domain resource selection of the RATSL transmission that requires HARQ-ACK feedback. That is to say, if the RAT SL transmission does not support HARQ-ACK feedback, there is no need to perform the method provided in the embodiment of the present application.
  • a high-level indication information can be received, and the indication information can be used to indicate whether the time-frequency domain resource selection considers HARQ-ACK feedback.
  • the indication information indicates that the time-frequency domain resource selection does not consider HARQ-ACK feedback
  • the method provided in the embodiment of the present application can be performed. The description here is applicable to each embodiment of the present application and will not be repeated later.
  • time-frequency domain resource selection for the first RATSL transmission is performed by the physical layer, or the time-frequency domain resource selection for the first RATSL transmission is performed by the physical layer and the media access control layer (Media Access Control, MAC).
  • media access control layer Media Access Control, MAC
  • the HARQ-ACK feedback corresponding to the PSCCH and/or PSSCH transmission is disabled.
  • the enabling or disabling of HARQ-ACK feedback can be combined with the resource selection of PSCCH and/or PSSCH transmission, and the HARQ-ACK feedback can be disabled when the selected first time-frequency domain resource causes a conflict between the second time-frequency domain and the third time-frequency domain resources, so that the disabling process is more in line with the resource situation, avoiding unnecessary disabling, and reasonably allowing the PSFCH to avoid LTE SL transmission, which can reduce the interference of HARQ-ACK feedback on LTE SL transmission.
  • PSCCH and/or PSSCH resources of NR SL it is possible to ensure more optional time-frequency domain resources for NR SL transmission, and the signal quality of the time-frequency domain resources occupied by NR SL transmission can be improved, which can improve the performance of NR SL communication.
  • Figure 3 is a flow chart of a SL communication method provided in an embodiment of the present application.
  • the method is executed by the PSCCH and/or PSSCH transmitter of the first RAT SL, as shown in Figure 3, and the method includes but is not limited to the following steps:
  • the monitoring and/or resource information of the second RAT SL includes at least one of the following information:
  • Resource indication and/or resource reservation information transmitted on the PSCCH and/or PSSCH of the second RAT SL wherein the resource indication and/or resource reservation information is used to indicate the time-frequency domain resources available for PSCCH and/or PSSCH transmission of the second RAT SL.
  • the second RAT SL may determine the PSCCH and/or PSSCH transmission of the second RAT SL, i.e., the time-frequency domain resources available for the second RAT SL transmission, based on the resource indication and/or resource reservation information according to the first candidate resource set generated by the second RAT channel monitoring in some implementations. Further, the first candidate resource set may be determined based on the time-frequency domain resources available for the transmission of the second RAT SL. Optionally, the first candidate resource set may include all or part of the available time-frequency domain resources indicated by the resource indication and/or resource reservation information. In some implementations, the time-frequency domain resources available for the second RAT SL transmission are determined based on the resource indication and/or resource reservation information.
  • the available time-frequency domain resources may be screened based on the measurement information of the SL RSRP and/or SL RSSI corresponding to the resource indication and/or resource reservation information to determine the time-frequency domain resources used for the second RAT SL transmission.
  • the available time-frequency domain resources may be selected when the measurement information of the SL RSRP and/or SL RSSI corresponding to the resource indication and/or resource reservation information is greater than a set threshold.
  • the threshold value may be set based on a network instruction or a protocol agreement or a preconfigured manner.
  • a first candidate resource set is obtained, wherein the first candidate resource set includes a fourth time-frequency domain resource recommended or allowed to be used by the first RAT SL, and/or includes a fifth time-frequency domain resource not recommended or allowed to be used by the first RAT SL.
  • the second time-frequency domain resources used by the PFSCH transmission opportunity corresponding to the fourth time-frequency domain resources will not overlap with the third time-frequency domain resources used for the second RAT SL transmission.
  • the second time-frequency domain resources used by the PFSCH transmission opportunity corresponding to the fifth time-frequency domain resources will overlap with the third time-frequency domain resources used for the second RAT SL transmission.
  • S302 Determine whether the second time-frequency domain resources conflict with the third time-frequency domain resources based on the monitoring and/or resource information of the second RAT SL.
  • a third time-frequency domain resource is determined according to the resource indication and/or the resource reservation information, and when the third time-frequency domain resource overlaps with the second time-frequency domain resource or the time unit in which the second time-frequency domain resource is located in the time domain, it is determined that a conflict occurs; and/or,
  • a conflict is determined when a third time-frequency domain resource used for SL transmission of the second RAT is determined based on the resource indication and/or resource reservation information, and the measurement information of SL RSRP and/or SL RSSI corresponding to the resource indication and/or resource reservation information is greater than a set threshold, and the third time-frequency domain resource overlaps with the second time-frequency domain resource or the time unit in which the second time-frequency domain resource is located in the time domain; and/or,
  • the first candidate resource set includes a fourth time-frequency domain resource and the second time-frequency domain resource does not belong to the fourth time-frequency domain resource, it is determined that a conflict occurs; and/or;
  • the first candidate resource set includes the fifth time-frequency domain resource and the second time-frequency domain resource belongs to the fifth time-frequency domain resource, it is determined that a conflict occurs.
  • step S303 please refer to the relevant contents in the above embodiment, which will not be repeated here.
  • the HARQ-ACK feedback corresponding to the PSCCH and/or PSSCH transmission is disabled.
  • the enabling or disabling of HARQ-ACK feedback can be combined with the resource selection of PSCCH and/or PSSCH transmission, so that when the selected first time-frequency domain resource causes a conflict between the second time-frequency domain and the third time-frequency domain resources, the HARQ-ACK feedback can be disabled, so that the disabling process is more in line with the resource situation, and unnecessary disabling can be avoided.
  • Figure 4 is a flow chart of a SL communication method provided in an embodiment of the present application.
  • the method is executed by the PSCCH and/or PSSCH transmitter of the first RAT SL, as shown in Figure 4, and the method includes but is not limited to the following steps:
  • the sixth time-frequency domain resource is not included in the second candidate resource set, wherein the sixth time-frequency domain resource has the following characteristics: the second time-frequency domain resource corresponding to the sixth time-frequency domain resource used for the PSCCH and/or PSSCH transmission of the first RAL SL conflicts with the third time-frequency domain resource. That is to say, the second candidate resource set excludes the candidate time-frequency domain resources for PSCCH and/or PSSCH transmissions whose corresponding PSFCH transmission opportunities conflict with the second RAT SL transmission.
  • the time-frequency domain resources included in the second candidate resource set when used for PSCCH and/or PSSCH transmission, the time-frequency domain resources corresponding to the PSFCH will not conflict or overlap with the time-frequency domain resources used for the second RAT SL transmission.
  • a second set of candidate resources for PSCCH and/or PSSCH transmission of the first RAT SL may be determined based on a network indication.
  • the network device may send indication information, which may indicate time-frequency domain resources used for PSCCH and/or PSSCH transmission, for example, the indication information may be an index of time-frequency domain resources that can be used for SCCH and/or PSSCH transmission.
  • the second set of candidate resources is determined by indicating the time-frequency domain resources used for PSCCH and/or PSSCH transmission.
  • the time-frequency domain resources for PSCCH and/or PSSCH transmission may be determined based on the high-level configuration and the high-level configuration information, thereby obtaining the second candidate resource set.
  • a second set of candidate resources for PSCCH and/or PSSCH transmission of the first RAT SL may be determined by agreement, and time-frequency domain resources that meet set conditions may be used for PSCCH and/or PSSCH transmission of the first RAT SL may be agreed upon by agreement, such as quality conditions, or specific time-frequency positions.
  • S402 Determine whether the PSCCH and/or PSSCH transmission of the first RAT SL enables HARQ-ACK feedback based on the second candidate resource set.
  • the candidate time-frequency resources for PSCCH and/or PSSCH transmissions whose corresponding PSFCH transmission opportunities conflict with the second RAT SL transmissions have been excluded.
  • the second time-frequency domain resource used for the PSFCH transmission opportunity corresponding to the first time-frequency domain resource will not conflict or overlap with the third time-frequency domain resource used for the second RAT SL transmission.
  • the HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission is fed back through the second time-frequency domain resource, it will not affect the PSCCH and/or PSSCH transmissions of the second RAT SL, and the feedback of the HARQ-ACK corresponding to the PSCCH and/or PSSCH transmissions of the first RAT SL can be enabled.
  • the HARQ-ACK feedback corresponding to the PSCCH and/or PSSCH transmission is directly disabled.
  • the HARQ-ACK feedback corresponding to the PSCCH and/or PSSCH transmission of the first RAT SL is enabled.
  • the HARQ-ACK feedback corresponding to the PSCCH and/or PSSCH transmission can be allowed to avoid the second RAT SL transmission to ensure the normal transmission of the second RAT SL.
  • disabling the HARQ-ACK feedback corresponding to the PSCCH and/or PSSCH transmission of the first RAT SL includes indicating the disabling of the HARQ-ACK feedback corresponding to the PSCCH/PSSCH transmission in the SCI carried by the PSCCH and/or PSSCH transmission. That is, when the HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission of the first RAT SL determines whether to enable, the side link control information SCI carried by the PSCCH/PSSCH transmission of the first RAT SL can be used to indicate the disabling of HARQ-ACK to the receiving end of the PSCCH and/or PSSCH transmission of the first RAT SL.
  • the second candidate resource set can be determined by the physical layer and reported to the MAC layer.
  • the MAC layer determines the first time-frequency domain resources occupied by the PSCCH and/or PSSCH transmission of the first RAT SL based on the second candidate resource set.
  • the enabling or disabling of HARQ-ACK feedback can be combined with the resource selection of PSCCH and/or PSSCH transmission, so that when the selected first time-frequency domain resources cause a conflict between the second time-frequency domain and the third time-frequency domain resources, the HARQ-ACK feedback can be disenabled, so that the disabling process is more in line with the resource situation and unnecessary disabling can be avoided.
  • the PSFCH can reasonably avoid LTE SL transmission, and the interference of HARQ-ACK feedback on LTE SL transmission can be reduced.
  • PSCCH and/or PSSCH resources of NR SL it is possible to ensure more optional time-frequency domain resources for NR SL transmission, and the signal quality of the time-frequency domain resources occupied by NR SL transmission can be improved, which can improve the performance of NR SL communication.
  • Figure 5 is a flow chart of a SL communication method provided in an embodiment of the present application.
  • the method is executed by the PSCCH and/or PSSCH transmitter of the first RAT SL, as shown in Figure 5, and the method includes but is not limited to the following steps:
  • the sixth time-frequency domain resource is not included in the second candidate resource set, and the sixth time-frequency domain resource has the following characteristics: the second time-frequency domain resource corresponding to the sixth time-frequency domain resource used by the PSCCH and/or PSSCH transmission of the first RAL SL conflicts with the third time-frequency domain resource.
  • step S501 please refer to the relevant contents in the above embodiment, which will not be repeated here.
  • the third candidate resource set includes the sixth time-frequency domain resource.
  • the time-frequency domain resources included in the third candidate resource set include not only the sixth time-frequency domain resources, but also the seventh time-frequency domain resources, wherein the seventh time-frequency domain resources have the following characteristics: the second time-frequency domain resources corresponding to the seventh time-frequency domain resources used for the PSCCH and/or PSSCH transmission of the first RAL SL will not conflict with the third time-frequency domain resources. It is understandable that the second candidate resource set may include one or more seventh time-frequency domain resources.
  • the first time-frequency domain resource determined from the third candidate resource set belongs to the second candidate resource set, that is, the determined first time-frequency domain resource is the seventh time-frequency domain resource, it means that the second time-frequency domain resource corresponding to the determined first time-frequency domain resource will not conflict with the third time-frequency domain resource.
  • the HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission is fed back through the second time-frequency domain resource, it will not affect the PSCCH and/or PSSCH transmission of the second RAL SL, and can enable the HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission of the first RAT SL to be fed back through PFSCH.
  • the HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission is fed back through the second time-frequency domain resource, it will affect the PSCCH and/or PSSCH transmission of the second RAL SL.
  • the HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission of the first RAT SL can be enabled to be fed back through PFSCH. By allowing the HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission to give way to the second RAT SL transmission, the normal transmission of the second RAT SL can be ensured.
  • the second candidate resource set and the third candidate resource set can be determined by the physical layer respectively, and the second candidate resource set and the third candidate resource set can be reported to the MAC layer, and the MAC layer determines the first time-frequency domain resources occupied by the PSCCH and/or PSSCH transmission of the first RAT SL based on the second candidate resource set and the third candidate resource set.
  • the enabling or disabling of HARQ-ACK feedback can be combined with the resource selection of PSCCH and/or PSSCH transmission, so that when the selected first time-frequency domain resources cause a conflict between the second time-frequency domain and the third time-frequency domain resources, the HARQ-ACK feedback can be disenabled, so that the disabling process is more in line with the resource situation and unnecessary disabling can be avoided.
  • the PSFCH can reasonably avoid LTE SL transmission, and the interference of HARQ-ACK feedback on LTE SL transmission can be reduced.
  • PSCCH and/or PSSCH resources of NR SL it is possible to ensure more optional time-frequency domain resources for NR SL transmission, and the signal quality of the time-frequency domain resources occupied by NR SL transmission can be improved, which can improve the performance of NR SL communication.
  • Figure 6 is a flowchart of a SL communication method provided by an embodiment of the present application.
  • the method is executed by the PSCCH and/or PSSCH transmitter of the first RAT SL, as shown in Figure 6, and the method includes but is not limited to the following steps:
  • S601 determine the second candidate resource set for PSCCH and/or PSSCH transmission of the first RAT SL.
  • the sixth time-frequency domain resource is not included in the second candidate resource set, and the sixth time-frequency domain resource has the following characteristics: the second time-frequency domain resource corresponding to the sixth time-frequency domain resource used by the PSCCH and/or PSSCH transmission of the first RAL SL conflicts with the third time-frequency domain resource.
  • step S601 For a detailed description of step S601, please refer to the relevant contents in the above embodiment, which will not be repeated here.
  • the number of candidate resources in the second candidate resource set can be determined, and when the number of candidate resources is less than the set number of resources, a third candidate resource set is determined for the PSCCH and/or PSSCH transmission of the first RAT SL. That is to say, the sixth time-frequency domain resource has the following characteristics: the second time-frequency domain resource corresponding to the sixth time-frequency domain resource used for the PSCCH and/or PSSCH transmission of the first RAL SL conflicts with the third time-frequency domain resource.
  • S603 determine the first time-frequency domain resources used for PSCCH and/or PSSCH transmission of the first RAT SL.
  • the first time-frequency domain resources to be used for PSCCH and/or PSSCH transmission of the first RAT SL can be determined in the second candidate resource set.
  • the first time-frequency domain resources to be used for PSCCH and/or PSSCH transmission of the first RAT SL can be determined from a third candidate resource set.
  • the first time-frequency domain resources can be preferentially determined from the second candidate resource set.
  • the resources in the second candidate resource set are empty or the number of resources in the second candidate resource set is less than the set number of resources, the first time-frequency domain resources are determined from the third candidate resource set.
  • steps S604 and S605 please refer to the relevant contents in the above embodiments, which will not be repeated here.
  • the side link control information SCI carried by the PSCCH/PSSCH transmission of the first RAT SL can indicate to the receiving end of the PSCCH and/or PSSCH transmission of the first RAT SL whether the HARQ-ACK is disabled.
  • the physical layer can first determine the second candidate resource set, and then determine the third candidate resource set when the number of resources in the second candidate resource set is insufficient, and report the second candidate resource set and the third candidate resource set to the MAC layer.
  • the MAC layer determines the first time-frequency domain resources occupied by the PSCCH and/or PSSCH transmission of the first RAT SL based on the second candidate resource set and the third candidate resource set.
  • the enabling or disabling of HARQ-ACK feedback can be combined with the resource selection of PSCCH and/or PSSCH transmission, so that when the selected first time-frequency domain resources cause a conflict between the second time-frequency domain and the third time-frequency domain resources, the HARQ-ACK feedback can be disenabled, so that the disabling process is more in line with the resource situation and unnecessary disabling can be avoided.
  • the PSFCH can reasonably avoid LTE SL transmission, and the interference of HARQ-ACK feedback on LTE SL transmission can be reduced.
  • PSCCH and/or PSSCH resources of NR SL it is possible to ensure more optional time-frequency domain resources for NR SL transmission, and the signal quality of the time-frequency domain resources occupied by NR SL transmission can be improved, which can improve the performance of NR SL communication.
  • Figure 7 is a flow chart of a SL communication method provided in an embodiment of the present application.
  • the method is executed by the PSCCH and/or PSSCH transmitter of the first RAT SL, as shown in Figure 7, and includes but is not limited to the following steps:
  • S701 determine a third candidate resource set for PSCCH and/or PSSCH transmission of the first RAT SL.
  • the third candidate resource set includes the sixth time-frequency domain resource.
  • the time-frequency domain resources included in the third candidate resource set include not only the sixth time-frequency domain resources, but also the seventh time-frequency domain resources, wherein the sixth time-frequency domain resources have the following characteristics: the second time-frequency domain resources corresponding to the sixth time-frequency domain resources used for the PSCCH and/or PSSCH transmission of the first RAL SL conflict with the third time-frequency domain resources.
  • the seventh time-frequency domain resources have the following characteristics: the second time-frequency domain resources corresponding to the seventh time-frequency domain resources used for the PSCCH and/or PSSCH transmission of the first RAL SL do not conflict with the third time-frequency domain resources.
  • step S701 For a detailed description of step S701, please refer to the relevant contents in the above embodiment, which will not be repeated here.
  • S702 Determine a second candidate resource set based on the third candidate resource set.
  • time-frequency domain resources are selected from the third candidate resource set to obtain a second candidate resource set.
  • the second candidate resource set does not include the sixth time-frequency domain resource.
  • one or more seventh time-frequency domain resources are selected from the third candidate resource set to determine the second candidate resource set.
  • the first time-frequency domain resources belong to the second candidate resource set, enable the feedback of HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission of the first RAT SL; or, when the first time-frequency domain resources do not belong to the second candidate resource set, disable the feedback of HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission of the first RAT SL.
  • disabling the HARQ-ACK feedback corresponding to the PSCCH and/or PSSCH transmission of the first RAT SL includes indicating the disabling of the HARQ-ACK feedback corresponding to the PSCCH/PSSCH transmission in the SCI carried by the PSCCH and/or PSSCH transmission. That is, when the HARQ-ACK corresponding to the PSCCH and/or PSSCH transmission of the first RAT SL determines whether to enable, the side link control information SCI carried by the PSCCH/PSSCH transmission of the first RAT SL can be used to indicate the HARQ-ACK disabling to the receiving end of the PSCCH and/or PSSCH transmission of the first RAT SL.
  • the physical layer may first determine a third candidate resource set, determine a second candidate resource set based on the third candidate resource set, and report the third candidate resource set and the second candidate resource set to the MAC layer, and the MAC layer determines the first time-frequency domain resources occupied by the PSCCH and/or PSSCH transmission of the first RAT SL based on the second candidate resource set and the third candidate resource set.
  • the enabling or disabling of HARQ-ACK feedback can be combined with the resource selection of PSCCH and/or PSSCH transmission, so that when the selected first time-frequency domain resources cause a conflict between the second time-frequency domain and the third time-frequency domain resources, the HARQ-ACK feedback can be disenabled, so that the disabling process is more in line with the resource situation and unnecessary disabling can be avoided.
  • the PSFCH can reasonably avoid LTE SL transmission, and the interference of HARQ-ACK feedback on LTE SL transmission can be reduced.
  • PSCCH and/or PSSCH resources of NR SL it is possible to ensure more optional time-frequency domain resources for NR SL transmission, and the signal quality of the time-frequency domain resources occupied by NR SL transmission can be improved, which can improve the performance of NR SL communication.
  • the method provided by the embodiments of the present application is introduced from the perspective of the transmitter of the PSCCH and/or PSSCH of the first RAT SL.
  • the transmitter of the PSCCH and/or PSSCH of the first RAT SL may include a hardware structure, a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • One of the above functions may be executed in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • FIG 8 is a schematic diagram of the structure of a communication device 800 provided in an embodiment of the present application.
  • the communication device 800 shown in Figure 8 may include a transceiver module 801 and a processing module 802.
  • the transceiver module 801 may include a sending module and/or a receiving module, the sending module is used to implement the sending function, the receiving module is used to implement the receiving function, and the transceiver module 801 can implement the sending function and/or the receiving function.
  • the communication device 800 may be a terminal device, a device in a terminal device, or a device that can be used in conjunction with a terminal device.
  • the communication device 800 may be a network device, a device in a network device, or a device that can be used in conjunction with a network device.
  • the communication device 800 may be a PSCCH and/or PSSCH transmitter of the first RATSL as in the above-mentioned embodiment.
  • Processing module 802 is used to disenable the HARQ feedback corresponding to the PSCCH and/or PSSCH transmission when the second time-frequency domain resources used by the physical direct feedback channel PSFCH transmission opportunity corresponding to the first time-frequency domain resources used for the PSCCH and/or PSSCH transmission conflict with the third time-frequency domain resources used for the SL transmission of the second RAT.
  • the second time-frequency domain resource overlaps with the third time-frequency domain resource in the time domain; or, the time unit in which the second time-frequency domain resource is located overlaps with the third time-frequency domain resource in the time domain.
  • the first RAT is New Radio (NR)
  • the second RAT is Long Term Evolution (LTE).
  • NR New Radio
  • LTE Long Term Evolution
  • processing module 802 is further configured to:
  • the monitoring and/or resource information includes at least one of the following information:
  • the second RAT SL generates a first candidate resource set based on second RAT channel monitoring, wherein the first candidate resource set includes fourth time-frequency domain resources recommended or allowed to be used by the first RAT SL, and/or includes fifth time-frequency domain resources that are not recommended or allowed to be used by the first RAT SL.
  • processing module 802 is further configured to:
  • the first candidate resource set includes the fourth time-frequency domain resource and the second time-frequency domain resource does not belong to the fourth time-frequency domain resource, it is determined that a conflict occurs; and/or;
  • the first candidate resource set includes the fifth time-frequency domain resource and the second time-frequency domain resource belongs to the fifth time-frequency domain resource, it is determined that a conflict occurs.
  • processing module 802 is further configured to:
  • the second candidate resource set it is determined whether the PSCCH and/or PSSCH transmission enables HARQ feedback.
  • processing module 802 is further configured to:
  • processing module 802 is further configured to:
  • a first time-frequency domain resource used for the PSCCH and/or PSSCH transmission is determined from the third candidate resource set.
  • processing module 802 is further configured to:
  • the first time-frequency domain resource belongs to the second candidate resource set, enabling HARQ feedback corresponding to the PSCCH and/or PSSCH transmission; or,
  • processing module 802 is further configured to:
  • the first time-frequency domain resource is determined from the third candidate resource set.
  • processing module 802 is further configured to:
  • the third candidate resource set is determined.
  • processing module 802 is further configured to:
  • the second candidate resource set is determined based on the third candidate resource set.
  • processing module 802 is further configured to:
  • the enabling or disabling of HARQ-ACK feedback can be combined with the resource selection of PSCCH and/or PSSCH transmission, so that when the selected first time-frequency domain resources cause a conflict between the second time-frequency domain and the third time-frequency domain resources, the HARQ-ACK feedback can be disenabled, so that the disabling process is more in line with the resource situation and unnecessary disabling can be avoided.
  • the PSFCH can reasonably avoid LTE SL transmission, and the interference of HARQ-ACK feedback on LTE SL transmission can be reduced.
  • PSCCH and/or PSSCH resources of NR SL it is possible to ensure more optional time-frequency domain resources for NR SL transmission, and the signal quality of the time-frequency domain resources occupied by NR SL transmission can be improved, which can improve the performance of NR SL communication.
  • FIG. 9 is a schematic diagram of the structure of another communication device 900 provided in an embodiment of the present application.
  • the communication device 900 may be a transmitter of the PSCCH and/or PSSCH of the first RAT SL, or may be a chip, chip system, or processor that supports the implementation of the above method by the transmitter, or may be a chip, chip system, or processor that supports the second node to implement the above method, or may be a chip, chip system, or processor that supports the third node to implement the above method.
  • the device may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.
  • the communication device 900 may include one or more processors 901.
  • the processor 901 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
  • the communication device 900 may further include one or more memories 902, on which a computer program 904 may be stored, and the processor 901 executes the computer program 904 so that the communication device 900 performs the method described in the above method embodiment.
  • data may also be stored in the memory 902.
  • the communication device 900 and the memory 902 may be provided separately or integrated together.
  • the communication device 900 may further include a transceiver 905 and an antenna 906.
  • the transceiver 905 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 905 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.
  • the communication device 900 may further include one or more interface circuits 909.
  • the interface circuit 909 is used to receive code instructions and transmit them to the processor 901.
  • the processor 901 runs the code instructions to enable the communication device 900 to perform the method described in the above method embodiment.
  • the communication device 900 is a terminal device that can be used to perform the functions of the terminal device in the above embodiments.
  • the communication device 900 is a network device: it can be used to execute the functions of the terminal device in the above embodiment.
  • the processor 901 may include a transceiver for implementing the receiving and sending functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the processor 901 may store a computer program 903, which runs on the processor 901 and enables the communication device 900 to perform the method described in the above method embodiment.
  • the computer program 903 may be fixed in the processor 901, in which case the processor 901 may be implemented by hardware.
  • the communication device 900 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments.
  • the processor and transceiver described in the present application can be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • N-type metal oxide semiconductor nMetal-oxide-semiconductor
  • PMOS bipolar junction transistor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a terminal device (such as the first terminal device in the aforementioned method embodiment), but the scope of the communication device described in the present application is not limited thereto, and the structure of the communication device may not be limited by FIG. 9.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device can be a chip or a chip system
  • the communication device can be a chip or a chip system
  • the schematic diagram of the chip structure shown in Figure 10 includes a processor 1001 and an interface 1002.
  • the number of processors 1001 can be one or more, and the number of interfaces 1002 can be multiple.
  • the chip 1000 can be used to implement the functions of the transmitter of the PSCCH and/or PSSCH of the first RAT SL in the embodiment of the present application:
  • Processor 1001 is used to disenable the HARQ feedback corresponding to the PSCCH and/or PSSCH transmission when the second time-frequency domain resources used by the physical direct feedback channel PSFCH transmission opportunity corresponding to the first time-frequency domain resources used for the PSCCH and/or PSSCH transmission conflict with the third time-frequency domain resources used for the SL transmission of the second RAT.
  • the second time-frequency domain resource overlaps with the third time-frequency domain resource in the time domain; or, the time unit in which the second time-frequency domain resource is located overlaps with the third time-frequency domain resource in the time domain.
  • the first RAT is New Radio (NR)
  • the second RAT is Long Term Evolution (LTE).
  • NR New Radio
  • LTE Long Term Evolution
  • the processor 1001 is further configured to:
  • the monitoring and/or resource information includes at least one of the following information:
  • the second RAT SL generates a first candidate resource set based on second RAT channel monitoring, wherein the first candidate resource set includes fourth time-frequency domain resources recommended or allowed to be used by the first RAT SL, and/or includes fifth time-frequency domain resources that are not recommended or allowed to be used by the first RAT SL.
  • the processor 1001 is further configured to:
  • the first candidate resource set includes the fourth time-frequency domain resource and the second time-frequency domain resource does not belong to the fourth time-frequency domain resource, it is determined that a conflict occurs; and/or;
  • the first candidate resource set includes the fifth time-frequency domain resource and the second time-frequency domain resource belongs to the fifth time-frequency domain resource, it is determined that a conflict occurs.
  • the processor 1001 is further configured to:
  • the second candidate resource set it is determined whether the PSCCH and/or PSSCH transmission enables HARQ feedback.
  • the processor 1001 is further configured to:
  • the processor 1001 is further configured to:
  • a first time-frequency domain resource used for the PSCCH and/or PSSCH transmission is determined from the third candidate resource set.
  • the processor 1001 is further configured to:
  • the first time-frequency domain resource belongs to the second candidate resource set, enabling HARQ feedback corresponding to the PSCCH and/or PSSCH transmission; or,
  • the processor 1001 is further configured to:
  • the first time-frequency domain resource is determined from the third candidate resource set.
  • the processor 1001 is further configured to:
  • the third candidate resource set is determined.
  • the processor 1001 is further configured to:
  • the second candidate resource set is determined based on the third candidate resource set.
  • the processor 1001 is further configured to:
  • the chip 1000 further includes a memory 1003 , which is used to store necessary computer programs and data.
  • the enabling or disabling of HARQ-ACK feedback can be combined with the resource selection of PSCCH and/or PSSCH transmission, so that when the selected first time-frequency domain resources cause a conflict between the second time-frequency domain and the third time-frequency domain resources, the HARQ-ACK feedback can be disenabled, so that the disabling process is more in line with the resource situation and unnecessary disabling can be avoided.
  • the PSFCH can reasonably avoid LTE SL transmission, and the interference of HARQ-ACK feedback on LTE SL transmission can be reduced.
  • PSCCH and/or PSSCH resources of NR SL it is possible to ensure more optional time-frequency domain resources for NR SL transmission, and the signal quality of the time-frequency domain resources occupied by NR SL transmission can be improved, which can improve the performance of NR SL communication.
  • An embodiment of the present application also provides a communication system, which includes the communication device as a transmitting end in the embodiment of FIG. 8 , or the system includes the communication device as a transmitting end in the embodiment of FIG. 9 .
  • the present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
  • the present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • SSD solid state drive
  • At least one in the present application can also be described as one or more, and a plurality can be two, three, four or more, which is not limited in the present application.
  • the technical features in the technical feature are distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc., and there is no order of precedence or size between the technical features described by the "first”, “second”, “third”, “A”, “B”, “C” and “D”.
  • the corresponding relationships shown in each table in the present application can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by the present application.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.
  • Predefined in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, curing, or pre-firing.
  • Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

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Abstract

Un procédé de communication SL et un appareil correspondant, qui peuvent être appliqués à un système de communication directe, sont divulgués dans les modes de réalisation de la présente demande. Le procédé consiste à : lorsqu'une deuxième ressource de domaine fréquentiel/temporel utilisée par une opportunité de transmission PSFCH correspondant à une première ressource de domaine fréquentiel/temporel utilisée par une transmission PSCCH et/ou PSSCH d'une première SL RAT est en conflit avec une troisième ressource de domaine fréquentiel/temporel utilisée par une transmission SL d'une seconde RAT, désactiver une rétroaction HARQ-ACK correspondant à une transmission PSCCH et/ou PSSCH. Dans les modes de réalisation de la présente demande, la détermination de l'activation ou de la désactivation d'une rétroaction HARQ-ACK est combinée à une sélection de ressources pour une transmission PSCCH et/ou PSSCH, de telle sorte que la rétroaction HARQ-ACK peut être désactivée lorsqu'une première ressource de domaine fréquentiel/temporel sélectionnée entraîne un conflit survenant entre une deuxième ressource de domaine fréquentiel/temporel et une troisième ressource de domaine fréquentiel/temporel, et ainsi l'interférence de la rétroaction HARQ-ACK sur une transmission SL LTE peut être réduite.
PCT/CN2022/130041 2022-11-04 2022-11-04 Procédé de communication de liaison latérale (sl) et appareil correspondant WO2024092772A1 (fr)

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CN202280004103.8A CN115997446A (zh) 2022-11-04 2022-11-04 侧行链路sl通信方法及装置

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