WO2024067025A1 - Procédé et appareil de communication de liaison latérale - Google Patents

Procédé et appareil de communication de liaison latérale Download PDF

Info

Publication number
WO2024067025A1
WO2024067025A1 PCT/CN2023/117775 CN2023117775W WO2024067025A1 WO 2024067025 A1 WO2024067025 A1 WO 2024067025A1 CN 2023117775 W CN2023117775 W CN 2023117775W WO 2024067025 A1 WO2024067025 A1 WO 2024067025A1
Authority
WO
WIPO (PCT)
Prior art keywords
resource
lte
resources
transmission
candidate
Prior art date
Application number
PCT/CN2023/117775
Other languages
English (en)
Chinese (zh)
Inventor
黄海宁
杨帆
米翔
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.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2024067025A1 publication Critical patent/WO2024067025A1/fr

Links

Classifications

    • 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
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • the present application relates to the field of communications, and more specifically, to a sidelink communication method and device.
  • terminal devices can communicate with other terminal devices in the resource pool, and the resource pool will periodically configure the physical sidelink feedback channel (PSFCH) feedback resources.
  • the physical sidelink control channel (PSCCH) resources used to transmit data have a corresponding mapping relationship with the periodically configured PSFCH feedback resources.
  • LTE-V Long Term Evolution-vehicle
  • NR-V New Radio-vehicle
  • one purpose of co-channel coexistence is to utilize the spectrum of LTE-V transmission. Due to the gradual withdrawal of LTE-V from the network, the number of users of LTE-V transmission and the spectrum resources required have decreased. Sharing the spectrum of LTE-V transmission can enable the transmission of NR-V and improve the efficiency of spectrum utilization. On the other hand, it is not clear whether there is a spectrum dedicated to PSFCH transmission and how to find such a set of time-frequency resources. Therefore, how to ensure the dynamic coexistence of NR-V and LTE-V in co-channel transmission without affecting the performance of LTE-V has become an urgent problem to be solved.
  • the present application provides a sidelink communication method and device, which can ensure that NR-V and LTE-V can achieve dynamic coexistence of co-channel transmission without affecting LTE-V performance.
  • a sidelink communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a resource occupied by LTE-V transmission, and the first resource belonging to a first resource set; determining, based on the resources occupied by the LTE-V transmission, that the resources occupied by the LTE-V transmission and a second resource do not overlap, the second resource being used to carry feedback information corresponding to NR-V data, and the second resource belonging to the first resource set; and sending feedback information corresponding to the NR-V data on the second resource.
  • the method includes: obtaining first indication information, the first indication information is used to indicate a first resource, the first resource is a resource occupied by LTE-V transmission, or the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set; sending feedback information corresponding to NR-V data on a second resource, the second resource does not overlap with the resources occupied by the LTE-V transmission, and the second resource belongs to the first resource set.
  • the solution of the present application by determining that the resources occupied by LTE-V transmission do not overlap with the second resources, and thus sending feedback information corresponding to the NR-V data on the second resources, it is possible to ensure that NR-V and LTE-V can dynamically coexist in co-channel transmission without affecting the performance of LTE-V, that is, sending the feedback information corresponding to the NR-V data without affecting the performance of LTE-V, thereby ensuring the performance of NR-V.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction, transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals. It should be understood that in this case, the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the resources occupied by LTE-V transmission can be understood as the reserved resources of LTE-V, or the reserved resources of LTE-V transmission. Either the resources that LTE-V has indicated but not used, or the resources that LTE-V has used and reserved.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • the method provided in the first aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the first terminal can obtain the indication information of the first resource through the LTE-V module.
  • the method provided in the first aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the first terminal or the NR-V module of the first terminal receives indication information of the first resource of the second terminal device.
  • the terminal device can improve the reliability and flexibility of the communication method by acquiring the first resource, thereby ensuring that NR-V can use the resource pool of LTE-V without affecting LTE-V transmission.
  • the first resource is a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is greater than a first threshold.
  • the first terminal can use resources with lower LTE-V energy measurement values to improve resource utilization efficiency without affecting LTE-V transmission.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the resource pool of the NR-V, and the resource pool of the NR-V includes the first resource set. That is, the resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource set dedicated to the NR-V. If the second resource overlaps with the first resource set (that is, the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of LTE-V. If the second resource is located in the resource set dedicated to the NR-V, the feedback information corresponding to the NR-V data is sent on the second resource.
  • the first indication information is used to determine that the resources occupied by the LTE-V transmission and the second resources do not overlap, or that the second resources do not overlap with the resources occupied by the LTE-V transmission, including: the first resource and the second resource do not overlap in the time domain. That is, the first resource is any resource in the set of resources occupied by the LTE-V transmission, and the first resource and the second resource do not overlap in the time domain, that is, the second resource and the resources occupied by the LTE-V transmission do not overlap in the time domain.
  • NR-V and LTE-V can realize dynamic coexistence of co-channel transmission without affecting the performance of LTE-V, and at the same time, the performance of NR-V is guaranteed without affecting the performance of LTE-V.
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is the priority used for LTE-V resource selection or reselection
  • the second priority is the priority indicated in the side control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement is a linear average of the total received power on each symbol in the configured subchannels in symbols used to transmit PSSCH (eg, carrying data).
  • the energy measurement value may be a RSRP measurement value and a RSSI measurement value.
  • the terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.
  • the determination that the resources occupied by the LTE-V transmission and the second resources do not overlap, or that the second resources do not overlap with the resources occupied by the LTE-V transmission includes: determining that the time domain range of the first resource includes the time domain resources of the second resource.
  • a sidelink communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a candidate resource for LTE-V transmission, and the first resource belonging to a first resource set; determining, based on the candidate resource for LTE-V transmission, that resources occupied by LTE-V transmission and second resources do not overlap, the second resource being used to carry feedback information corresponding to NR-V data, and the second resource belonging to the first resource set; and sending feedback information corresponding to the NR-V data on the second resource.
  • the method includes: obtaining first indication information, the first indication information is used to indicate a first resource, the first resource is a resource occupied by LTE-V transmission, or the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set; sending feedback information corresponding to NR-V data on a second resource, the second resource does not overlap with the resources occupied by the LTE-V transmission, and the second resource belongs to the first resource set.
  • the solution of the present application by determining that the resources occupied by LTE-V transmission do not overlap with the second resources, and thus sending feedback information corresponding to the NR-V data on the second resources, it is possible to ensure that NR-V and LTE-V can dynamically coexist in co-channel transmission without affecting the performance of LTE-V, that is, sending the feedback information corresponding to the NR-V data without affecting the performance of LTE-V, thereby ensuring the performance of NR-V.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • the candidate resource for LTE-V transmission can be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction, transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals. It should be understood that in this case, the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • the method provided in the second aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the terminal can obtain the indication information of the first resource through the LTE-V module.
  • the method provided in the second aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the first terminal or the NR-V module of the first terminal receives indication information of the first resource of the second terminal device.
  • the terminal device can improve the reliability and flexibility of the communication method by acquiring the first resource, thereby ensuring that NR-V can use the resource pool of LTE-V without affecting LTE-V transmission.
  • the first resource is the remaining candidate resource in the second resource set after excluding the candidate resources overlapping with the resources occupied by the LTE-V transmission
  • the second resource set belongs to the first resource set
  • the second resource set is a resource set within the resource selection window corresponding to the LTE-V transmission. Due to the influence of the PSFCH AGC symbol, the NR-V module determines the candidate resource set according to the reserved resources of LTE-V, which can maximize the guarantee that the transmission on the PSFCH AGC symbol will not affect the transmission of LTE-V.
  • the resource selection window is a time window, or a time period, or a subframe set, or a time slot set.
  • the first resource is the remaining candidate resource in the second resource set after excluding the candidate resources that overlap with the resources occupied by the LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than the first threshold.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the NR-V resource pool, and the NR-V resource pool includes the first resource set. That is, the NR-V The resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource set dedicated to the NR-V. If the second resource overlaps with the first resource set (i.e., the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of the LTE-V. If the second resource is in the resource set dedicated to the NR-V, the feedback information corresponding to the NR-V data is sent on the second resource.
  • determining, according to the candidate resources for LTE-V transmission, that the resources occupied by the LTE-V transmission and the second resources do not overlap, or that the second resources do not overlap with the resources occupied by the LTE-V transmission includes: determining that the resources occupied by the LTE-V transmission and the second resources do not overlap in the time domain when at least one of the following conditions is met:
  • the second resource belongs to the first resource, and the fourth resource does not overlap with the second resource in the time domain.
  • the fourth resource is a remaining candidate resource excluding the first resource from at least one candidate resource included in the first time slot, and the first time domain unit is the time domain unit where the second resource is located.
  • the second resource belongs to the first resource, and the number of the candidate resources included in the first time slot is equal to a second threshold, and the second threshold is a maximum number of candidate resources included in the first time domain unit;
  • the fourth resource does not overlap with the second resource in the time domain.
  • the number of the fourth resources is 0.
  • the number of the candidate resources included in the first time domain unit is equal to a second threshold.
  • no candidate resource is excluded in the first time unit. It should be understood that the number of the fourth resources is 0, which can be understood as no candidate resource is excluded in the first time unit, or the number of candidate resources excluded in the first time unit is 0.
  • time domain unit can be understood as a subframe in LTE-V and as a time slot in NR-V.
  • the first resource overlaps with the second resource it is determined that the resources occupied by the LTE-V transmission do not overlap with the second resource, that is, no candidate resources are excluded in the first time unit, and there is no LTE-V transmission in the time unit, that is, the transmission of PSFCH has no effect on the transmission of LTE-V. It can ensure that NR-V and LTE-V can achieve dynamic coexistence of co-channel transmission without affecting the performance of LTE-V, and at the same time, the performance of NR-V is guaranteed without affecting the performance of LTE-V.
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is the priority used for LTE-V resource selection or reselection
  • the second priority is the priority indicated in the side control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement is a linear average of the total received power on each symbol in the configured subchannels in symbols used to transmit PSSCH (eg, carrying data).
  • the energy measurement value may be a RSRP measurement value and a RSSI measurement value.
  • the terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.
  • the determination that the resources occupied by the LTE-V transmission and the second resources do not overlap, or that the second resources do not overlap with the resources occupied by the LTE-V transmission is based on the first indication information, including: determining that the time domain range of the first resource includes the time domain resources of the second resource.
  • the candidate resources for LTE-V transmission it is determined that the resources occupied by LTE-V transmission and the resources corresponding to the PSFCH of NR-V transmission do not overlap in the time domain and feedback information is sent, which can ensure co-channel coexistence without affecting LTE-V performance.
  • a side link communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a resource occupied by LTE-V transmission, and the first resource belonging to a first resource set; determining a second resource based on a third resource, the third resource being a candidate resource for sending NR-V data, the second resource being a resource for carrying feedback information corresponding to the NR-V data, and the second resource belonging to the first resource set; determining, based on the resources occupied by the LTE-V transmission, that the resources occupied by the LTE-V transmission and the second resource do not overlap; and sending a second indication information, the second indication information being used to indicate enabling of a hybrid automatic repeat request HARQ corresponding to the NR-V data, the HARQ being the feedback information carried on the second resource.
  • the method includes: obtaining first indication information, the first indication information is used to indicate a first resource, the first resource is a resource occupied by LTE-V transmission, and the first resource belongs to a first resource set; sending second indication information, the second indication information is used to indicate enabling of a hybrid automatic repeat request HARQ corresponding to the NR-V data, the HARQ is feedback information carried on a second resource, and the second resource does not overlap with the resources occupied by the LTE-V transmission.
  • the solution of the present application by determining that the resources occupied by LTE-V transmission do not overlap with the second resources, thereby enabling the HARQ information corresponding to the NR-V data, it is possible to ensure co-channel coexistence without affecting the LTE-V performance, that is, to send the feedback information corresponding to the NR-V data without affecting the LTE-V performance, thereby ensuring the performance of NR-V.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction or transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals. It should be understood that in this case, the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the second indication information may be PSSCH, or the second level SCI in PSSCH, or the corresponding field in the second level SCI in PSSCH, or the "indication enable/disable HARQ" field in the second level SCI.
  • the resources occupied by LTE-V transmission can be understood as reserved resources of LTE-V, or reserved resources for LTE-V transmission, or resources that LTE-V has indicated but not used, or resources used by LTE-V and reserved resources.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • the method provided in the third aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the terminal can obtain the indication information of the first resource through the LTE-V module.
  • the method provided in the third aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the first terminal or the NR-V module of the first terminal receives indication information of the first resource of the second terminal device.
  • the terminal device can improve the reliability and flexibility of the communication method. Ensure that NR-V can use the resource pool of LTE-V without affecting LTE-V transmission.
  • the first resource is a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is greater than the first threshold.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the resource pool of the NR-V, and the resource pool of the NR-V includes the first resource set. That is, the resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource set dedicated to the NR-V. If the second resource overlaps with the first resource set (that is, the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of LTE-V. If the second resource is located in the resource set dedicated to the NR-V, the feedback information corresponding to the NR-V data is sent on the second resource.
  • the resources occupied by LTE-V transmission are determined to be non-overlapping with the second resource, or the second resource is non-overlapping with the resource occupied by the LTE-V transmission, including: the first resource and the second resource are non-overlapping in the time domain. That is, the first resource is any resource in the set of resources occupied by LTE-V transmission and whose energy measurement value is greater than the first threshold, and the first resource and the second resource are non-overlapping in the time domain, that is, the second resource and the resource occupied by LTE-V transmission are non-overlapping in the time domain.
  • NR-V and LTE-V can realize dynamic coexistence of co-channel transmission without affecting the performance of LTE-V, and at the same time, the performance of NR-V is guaranteed without affecting the performance of LTE-V.
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is a priority used when selecting or reselecting LTE-V resources
  • the second priority Level is the priority indicated in the sideline control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement value is a linear average of the total received power on each symbol in a symbol used to transmit a PSSCH (e.g., carrying data) and in a configured subchannel.
  • the energy measurement value may be an RSRP measurement value and an RSSI measurement value.
  • the terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.
  • the determination that the resources occupied by the LTE-V transmission and the second resource do not overlap, or that the second resource does not overlap with the resources occupied by the LTE-V transmission includes: determining that the time domain range of the first resource includes the time domain resources of the second resource.
  • the solution of the present application by determining that the resources occupied by LTE-V transmission do not overlap with the second resources, thereby enabling the HARQ information of the NR-V data corresponding to the first data, it is possible to ensure co-channel coexistence without affecting the LTE-V performance, that is, to send the feedback information corresponding to the NR-V data without affecting the LTE-V performance, thereby ensuring the performance of NR-V.
  • a sidelink communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a candidate resource for LTE-V transmission, and the first resource belonging to a first resource set; determining a second resource based on a third resource, the third resource being a candidate resource for sending NR-V data, the second resource being a resource for carrying feedback information corresponding to the NR-V data, and the second resource belonging to the first resource set; determining, based on the candidate resource for LTE-V transmission, that the resources occupied by LTE-V transmission and the second resource do not overlap; sending a second indication information, the second indication information being used to indicate enabling of a hybrid automatic repeat request HARQ corresponding to the NR-V data, the HARQ being for carrying feedback information on the second resource.
  • the method includes: obtaining first indication information, the first indication information is used to indicate a first resource, the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set; sending second indication information, the second indication information is used to indicate enabling of a hybrid automatic repeat request HARQ corresponding to the NR-V data, the HARQ is feedback information carried on a second resource, and the second resource does not overlap with the resources occupied by the LTE-V transmission.
  • the solution of the present application by determining that the resources occupied by LTE-V transmission do not overlap with the second resources, thereby enabling the HARQ information of the NR-V data corresponding to the first data, it is possible to ensure co-channel coexistence without affecting the LTE-V performance, that is, to send the feedback information corresponding to the NR-V data without affecting the LTE-V performance, thereby ensuring the performance of NR-V.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • the candidate resource for LTE-V transmission can be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction, transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals. It should be understood that in this case, the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the second indication information may be PSSCH, or the second level SCI in PSSCH, or the corresponding field in the second level SCI in PSSCH, or the "indication enable/disable HARQ" field in the second level SCI.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • the method provided in the fourth aspect can be executed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the terminal can obtain the indication information of the first resource through the LTE-V module.
  • the method provided in the fourth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the first terminal or the NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.
  • the terminal device can improve the reliability and flexibility of the communication method.
  • the LTE-V resource pool is used.
  • the first resource is the remaining candidate resource in the second resource set after excluding the candidate resources that overlap with the resources occupied by the LTE-V transmission
  • the second resource set is a resource set in the resource selection window corresponding to the LTE-V transmission. Due to the influence of the PSFCH AGC symbol, the NR-V module determines the candidate resource set based on the reserved resources of LTE-V, which can maximize the guarantee that the transmission on the PSFCH AGC symbol will not affect the transmission of LTE-V.
  • the resource selection window is a time window, or a time period, or a subframe set, or a time slot set.
  • the first resource is the remaining candidate resource in the second resource set after excluding the candidate resources that overlap with the resources occupied by the LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than the first threshold.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the resource pool of the NR-V, and the resource pool of the NR-V includes the first resource set. That is, the resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource set dedicated to the NR-V. If the second resource overlaps with the first resource set (that is, the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of LTE-V. If the second resource is located in the resource set dedicated to the NR-V, the feedback information corresponding to the NR-V data is sent on the second resource.
  • the determining, according to the candidate resources for LTE-V transmission, that the resources occupied by the LTE-V transmission and the second resources do not overlap, or that the second resources do not overlap with the resources occupied by the LTE-V transmission includes: determining that the resources occupied by the LTE-V transmission and the second resources do not overlap in the time domain when at least one of the following conditions is met:
  • the second resource belongs to the first resource, and the fourth resource does not overlap with the second resource in the time domain.
  • the fourth resource is a remaining candidate resource excluding the first resource from at least one candidate resource included in the first time slot, and the first time slot is the time slot where the second resource is located.
  • the second resource belongs to the first resource, and the number of the candidate resources included in the first time slot is equal to a second threshold, and the second threshold is a maximum number of candidate resources included in the first time slot;
  • the fourth resource does not overlap with the second resource in the time domain.
  • the number of the fourth resources is 0.
  • the number of the candidate resources included in the first time slot is equal to the second threshold.
  • any candidate resource is not excluded within the first time unit.
  • the number of the fourth resources is 0, which can be understood as not excluding any candidate resource in the first time domain unit, or the number of candidate resources excluded in the first time domain unit is 0.
  • time domain unit can be understood as a subframe in LTE-V and as a time slot in NR-V.
  • the first resource overlaps with the second resource it is determined that the resources occupied by LTE-V transmission do not overlap with the second resource, that is, no candidate resources are excluded in the first time unit, and there is no LTE-V transmission in the time unit, that is, the transmission of PSFCH has no effect on the transmission of LTE-V. It can ensure that NR-V and LTE-V can achieve dynamic coexistence of co-channel transmission without affecting the performance of LTE-V, and at the same time ensure the performance of NR-V without affecting the performance of LTE-V.
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is the priority used for LTE-V resource selection or reselection
  • the second priority is the priority indicated in the side control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement is a linear average of the total received power on each symbol in the configured subchannels in symbols used to transmit PSSCH (eg, carrying data).
  • the energy measurement value may be a RSRP measurement value and a RSSI measurement value.
  • the terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.
  • the determination that the resources occupied by the LTE-V transmission and the second resources do not overlap, or that the second resources do not overlap with the resources occupied by the LTE-V transmission is based on the first indication information, including: determining that the time domain range of the first resource includes the time domain resources of the second resource.
  • the candidate resources for LTE-V transmission it is determined that the resources occupied by LTE-V transmission and the resources corresponding to the PSFCH of NR-V transmission do not overlap in the time domain and feedback information is sent, which can ensure co-channel coexistence without affecting LTE-V performance.
  • a side link communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a resource occupied by LTE-V transmission, and the first resource belonging to a first resource set; determining a second resource based on a third resource, the third resource being a candidate resource for sending NR-V data, the second resource being a resource for carrying feedback information corresponding to the NR-V data, and the second resource belonging to the first resource set; determining, based on the resources occupied by the LTE-V transmission, that the resources occupied by the LTE-V transmission and the second resource do not overlap; and sending the NR-V data on the third resource.
  • the method includes: obtaining first indication information, the first indication information is used to indicate a first resource, the first resource is a resource occupied by LTE-V transmission, and the first resource belongs to a first resource set; sending NR-V data on a third resource, the second resource corresponding to the third resource does not overlap with the resource occupied by the LTE-V transmission, the second resource is a resource used to carry feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set.
  • the solution of the present application by determining that the resources occupied by LTE-V transmission do not overlap with the second resources, and thus using the third resources corresponding to the second resources to send NR-V data, it is possible to ensure co-channel coexistence without affecting LTE-V performance, that is, to send feedback information corresponding to the NR-V data without affecting LTE-V performance, thereby ensuring NR-V performance.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • sending NR-V data on the third resource can be understood as selecting the third resource to send NR-V data during the resource selection process, or can be understood as using the third resource to send NR-V data after the resource selection process is completed.
  • the second resource is implicitly related to the third resource, and the terminal device can determine the second resource through the third resource, or the terminal device can determine the third resource through the second resource.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction, transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals. It should be understood that in this case, the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the resources occupied by LTE-V transmission can be understood as reserved resources of LTE-V, or reserved resources for LTE-V transmission, or resources that LTE-V has indicated but not used, or resources used by LTE-V and reserved resources.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • the method provided in the fifth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the terminal can obtain the indication information of the first resource through the LTE-V module.
  • the method provided in the fifth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the first terminal or the NR-V module of the first terminal receives indication information of the first resource of the second terminal device.
  • the terminal device can improve the reliability and flexibility of the communication method by acquiring the first resource, thereby ensuring that NR-V can use the resource pool of LTE-V without affecting LTE-V transmission.
  • the first resource is a resource occupied by LTE-V transmission
  • the energy measurement value corresponding to the first resource is greater than a first threshold.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the resource pool of the NR-V, and the resource pool of the NR-V includes the first resource set. That is, the resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource set dedicated to the NR-V. If the second resource overlaps with the first resource set (that is, the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of LTE-V. If the second resource is located in the resource set dedicated to the NR-V, the feedback information corresponding to the NR-V data is sent on the second resource.
  • the resources occupied by LTE-V transmission are determined to be non-overlapping with the second resource, or the second resource is non-overlapping with the resource occupied by the LTE-V transmission, including: the first resource and the second resource are non-overlapping in the time domain. That is, the first resource is any resource in the set of resources occupied by LTE-V transmission, and the first resource and the second resource are non-overlapping in the time domain, that is, the second resource and the resource occupied by LTE-V transmission are non-overlapping in the time domain.
  • NR-V and LTE-V can realize dynamic coexistence of co-channel transmission without affecting the performance of LTE-V, and at the same time, the performance of NR-V is guaranteed without affecting the performance of LTE-V.
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is the priority used for LTE-V resource selection or reselection
  • the second priority is the priority indicated in the side control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement is a linear average of the total received power on each symbol in the configured subchannels in symbols used to transmit PSSCH (eg, carrying data).
  • the energy measurement value may be an RSRP measurement value and an RSSI measurement value.
  • the terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.
  • the solution of the present application by determining that the resources occupied by LTE-V transmission do not overlap with the second resources, and thus sending NR-V data on the third resource corresponding to the second resource, it is possible to ensure co-channel coexistence without affecting the LTE-V performance, that is, to send the feedback information corresponding to the NR-V data without affecting the LTE-V performance, thereby ensuring the performance of NR-V.
  • a sidelink communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a resource occupied by LTE-V transmission, and the first resource belonging to a first resource set; determining a second resource based on a third resource, the third resource being a candidate resource for sending NR-V data, the second resource being a resource for carrying feedback information corresponding to the NR-V data, and the second resource belonging to the first resource set; determining, based on the candidate resource for LTE-V transmission, that the resource occupied by LTE-V transmission and the second resource do not overlap; and sending the NR-V data on the third resource.
  • the method includes: obtaining first indication information, the first indication information is used to indicate a first resource, the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set; sending NR-V data on a third resource, the second resource corresponding to the third resource does not overlap with the resources occupied by the LTE-V transmission, the second resource is a resource for carrying feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set.
  • the solution of the present application by determining that the resources occupied by LTE-V transmission do not overlap with the second resources, and thus using the third resources corresponding to the second resources to send NR-V data, it is possible to ensure co-channel coexistence without affecting LTE-V performance, that is, to send feedback information corresponding to the NR-V data without affecting LTE-V performance, thereby ensuring NR-V performance.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • the candidate resource for LTE-V transmission can be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.
  • sending NR-V data on the third resource can be understood as selecting the third resource to send NR-V data during the resource selection process, or can be understood as using the third resource to send NR-V data after the resource selection process is completed.
  • the second resource is implicitly related to the third resource, and the terminal device can determine the second resource through the third resource, or, The terminal device can determine the third resource through the second resource.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction, transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals.
  • the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • the method provided in the sixth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the terminal can obtain the indication information of the first resource through the LTE-V module.
  • the method provided in the sixth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the first terminal or the NR-V module of the first terminal receives indication information of the first resource of the second terminal device.
  • the terminal device can improve the reliability and flexibility of the communication method by acquiring the first resource, thereby ensuring that NR-V can use the resource pool of LTE-V without affecting LTE-V transmission.
  • the first resource is the remaining candidate resource after excluding the candidate resources overlapping with the resources occupied by the LTE-V transmission in the second resource set
  • the second resource set is a resource set in the resource selection window corresponding to the LTE-V transmission. Due to the influence of the PSFCH AGC symbol, the NR-V module determines the candidate resource set based on the reserved resources of LTE-V, which can maximize the guarantee that the transmission on the PSFCH AGC symbol will not affect the transmission of LTE-V.
  • the resource selection window is a time window, or a time period, or a subframe set, or a time slot set.
  • the first resource is the remaining candidate resource in the second resource set after excluding the candidate resources that overlap with the resources occupied by the LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than the first threshold.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the resource pool of the NR-V, and the resource pool of the NR-V includes the first resource set. That is, the resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource set dedicated to the NR-V. If the second resource overlaps with the first resource set (that is, the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of LTE-V. If the second resource is located in the resource set dedicated to the NR-V, the feedback information corresponding to the NR-V data is sent on the second resource.
  • the determining, according to the candidate resources for LTE-V transmission, that the resources occupied by the LTE-V transmission and the second resources do not overlap, or that the second resources do not overlap with the resources occupied by the LTE-V transmission includes: determining that the resources occupied by the LTE-V transmission and the second resources do not overlap in the time domain when at least one of the following conditions is met:
  • the second resource belongs to the first resource, and the fourth resource does not overlap with the second resource in the time domain.
  • the fourth resource is a remaining candidate resource excluding the first resource from at least one candidate resource included in the first time domain unit, and the first time domain unit is the time domain unit where the second resource is located.
  • the second resource belongs to the first resource, and the number of the candidate resources included in the first time domain unit is equal to a second threshold, and the second threshold is a maximum number of candidate resources included in the first time domain unit;
  • the fourth resource does not overlap with the second resource in the time domain.
  • the number of the fourth resources is 0.
  • the number of the candidate resources included in the first time domain unit is equal to a second threshold.
  • no candidate resource is excluded in the first time unit. It should be understood that the number of the fourth resources is 0, which can be understood as no candidate resource is excluded in the first time unit, or the number of candidate resources excluded in the first time unit is 0.
  • time domain unit can be understood as a subframe in LTE-V and as a time slot in NR-V.
  • the first resource overlaps with the second resource it is determined that the resources occupied by the LTE-V transmission do not overlap with the second resource, that is, no candidate resources are excluded in the first time unit, and there is no LTE-V transmission in the time unit, that is, the transmission of PSFCH has no effect on the transmission of LTE-V. It can ensure that NR-V and LTE-V can achieve dynamic coexistence of co-channel transmission without affecting the performance of LTE-V, and at the same time ensure the performance of NR-V without affecting the performance of LTE-V.
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is the priority used for LTE-V resource selection or reselection
  • the second priority is the priority indicated in the side control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement is a linear average of the total received power on each symbol in the configured subchannels in symbols used to transmit PSSCH (eg, carrying data).
  • the energy measurement value may be a RSRP measurement value and a RSSI measurement value.
  • determining, based on the first indication information, that the resources occupied by the LTE-V transmission and the second resources do not overlap includes: determining that the time domain range of the first resource includes the time domain resources of the second resource.
  • the solution of the present application by determining that the resources occupied by LTE-V transmission do not overlap with the second resources, and thus using the third resources corresponding to the second resources to send NR-V data, it is possible to ensure co-channel coexistence without affecting LTE-V performance, that is, to send feedback information corresponding to the NR-V data without affecting LTE-V performance, thereby ensuring NR-V performance.
  • a side link communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a resource occupied by LTE-V transmission, and the first resource belonging to a first resource set; determining, based on the resources occupied by the LTE-V transmission, that the resources occupied by the LTE-V transmission overlap with a second resource, the second resource being used to carry feedback information corresponding to NR-V data, and the second resource belonging to the first resource set; and not sending feedback information corresponding to the NR-V data on the second resource.
  • the method includes: obtaining first indication information, the first indication information is used to indicate a first resource, the first resource is a resource occupied by LTE-V transmission, or the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set; not sending feedback information corresponding to NR-V data on a second resource, the second resource overlaps with the resource occupied by the LTE-V transmission, and the second resource belongs to the first resource set.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction, transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals. It should be understood that in this case, the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the resources occupied by LTE-V transmission can be understood as reserved resources of LTE-V, or reserved resources for LTE-V transmission, or resources that LTE-V has indicated but not used, or resources used by LTE-V and reserved resources.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • not sending feedback information corresponding to NR-V data may be: stopping sending feedback information corresponding to NR-V data, prohibiting sending feedback information corresponding to NR-V data, canceling sending feedback information corresponding to NR-V data, suspending sending feedback information corresponding to NR-V data, feedback information corresponding to NR-V data, stop sending feedback information corresponding to NR-V data, etc.
  • the method provided in the seventh aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the terminal can obtain the indication information of the first resource through the LTE-V module.
  • the method provided in the seventh aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the first terminal or the NR-V module of the first terminal receives indication information of the first resource of the second terminal device.
  • the terminal device can improve the reliability and flexibility of the communication method by acquiring the first resource, thereby ensuring that NR-V can use the resource pool of LTE-V without affecting LTE-V transmission.
  • the first resource is a resource occupied by LTE-V transmission
  • the energy measurement value corresponding to the first resource is greater than a first threshold.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the resource pool of the NR-V, and the resource pool of the NR-V includes the first resource set. That is, the resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource set dedicated to the NR-V. If the second resource overlaps with the first resource set (that is, the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of LTE-V. If the second resource is located in the resource set dedicated to the NR-V, the feedback information corresponding to the NR-V data is sent on the second resource.
  • the determination that the resources occupied by the LTE-V transmission overlap with the second resource, or that the second resource overlaps with the resources occupied by the LTE-V transmission is based on the first indication information, including: the first resource and the second resource overlap in the time domain. That is, the first resource is any resource in the set of resources occupied by the LTE-V transmission, and the first resource and the second resource overlap in the time domain, that is, the second resource and the resources occupied by the LTE-V transmission overlap in the time domain. This ensures that NR-V and LTE-V can achieve dynamic coexistence of co-channel transmission without affecting the performance of LTE-V.
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is the priority used for LTE-V resource selection or reselection
  • the second priority is the priority indicated in the side control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement is a linear average of the total received power on each symbol in the configured subchannels in symbols used to transmit PSSCH (eg, carrying data).
  • the energy measurement value may be a RSRP measurement value and a RSSI measurement value.
  • the terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.
  • the first indication information it is determined that the resources occupied by the LTE-V transmission overlap with the second resource, or that the second resource overlaps with the resources occupied by the LTE-V transmission, including: determining that the time domain range of the first resource does not include the time domain resources of the second resource, and not sending the feedback information corresponding to the NR-V data, so as to ensure that co-channel coexistence is achieved without affecting the performance of LTE-V.
  • the PSFCH resources affect the transmission of LTE-V. Therefore, in order to avoid potential impacts, it is decided not to send PSFCH, which maximizes the guarantee that the transmission of NR-V will not affect the transmission of LTE-V.
  • a sidelink communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a candidate resource for LTE-V transmission, the first resource belonging to a first resource set; Candidate resources for LTE-V transmission, determining that the resources occupied by LTE-V transmission overlap with the second resource, the second resource is used to carry feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; feedback information corresponding to the NR-V data is not sent on the second resource.
  • the method includes: obtaining first indication information, the first indication information is used to indicate a first resource, the first resource is a resource occupied by LTE-V transmission, or the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set; not sending feedback information corresponding to NR-V data on a second resource, the second resource overlaps with the resource occupied by the LTE-V transmission, and the second resource belongs to the first resource set.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • the candidate resource for LTE-V transmission can be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction, transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals. It should be understood that in this case, the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • not sending feedback information corresponding to NR-V data may be: stopping sending feedback information corresponding to NR-V data, prohibiting sending feedback information corresponding to NR-V data, canceling sending feedback information corresponding to NR-V data, suspending sending feedback information corresponding to NR-V data, terminating sending feedback information corresponding to NR-V data, etc.
  • the method provided in the eighth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the terminal can obtain the indication information of the first resource through the LTE-V module.
  • the method provided in the eighth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the first terminal or the NR-V module of the first terminal receives indication information of the first resource of the second terminal device.
  • the terminal device can improve the reliability and flexibility of the communication method by acquiring the first resource, thereby ensuring that NR-V can use the resource pool of LTE-V without affecting LTE-V transmission.
  • the first resource is the remaining candidate resource in the second resource set after excluding the candidate resources that overlap with the resources occupied by the LTE-V transmission
  • the second resource set belongs to the first resource set
  • the second resource set is a resource set within the resource selection window corresponding to the LTE-V transmission. Due to the influence of the PSFCH AGC symbol, the NR-V module determines the candidate resource set based on the reserved resources of LTE-V, which can maximize the guarantee that the transmission on the PSFCH AGC symbol will not affect the transmission of LTE-V.
  • the resource selection window is a time window, or a time period, or a subframe set, or a time slot set.
  • the first resource is the remaining candidate resource in the second resource set after excluding the candidate resources that overlap with the resources occupied by the LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than the first threshold.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the resource pool of the NR-V, and the resource pool of the NR-V includes the first resource set. That is, the resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource pool dedicated to the NR-V. Resource set. If the second resource overlaps with the first resource set (i.e., the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of LTE-V. If the second resource is in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.
  • determining, according to the candidate resources for LTE-V transmission, that the resources occupied by the LTE-V transmission overlap with the second resources, or that the second resources overlap with the resources occupied by the LTE-V transmission includes: determining that the resources occupied by the LTE-V transmission overlap with the second resources in the time domain when at least one of the following conditions is met:
  • the second resource does not belong to the first resource.
  • the fourth resource overlaps with the second resource in the time domain, and the fourth resource is a remaining candidate resource excluding the first resource from at least one candidate resource included in a first time unit, and the first time unit is the time unit where the second resource is located.
  • the number of the candidate resources included in the first time unit is less than a second threshold, and the second threshold is a maximum number of the candidate resources included in the first time unit.
  • the number of the fourth resources is not zero.
  • candidate resources are excluded within the first time unit.
  • the number of the fourth resources is not zero, which can be understood as candidate resources being excluded in the first time domain unit, or the number of candidate resources excluded in the first time domain unit is not zero.
  • time domain unit can be understood as a subframe in LTE-V and as a time slot in NR-V.
  • the first resource does not overlap with the second resource
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is the priority used for LTE-V resource selection or reselection
  • the second priority is the priority indicated in the side control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement is a linear average of the total received power on each symbol in the configured subchannels in symbols used to transmit PSSCH (eg, carrying data).
  • the energy measurement value may be a RSRP measurement value and a RSSI measurement value.
  • the terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.
  • the first indication information it is determined that the resources occupied by the LTE-V transmission overlap with the second resource, or that the second resource overlaps with the resources occupied by the LTE-V transmission, including: determining that the time domain range of the first resource does not include the time domain resources of the second resource, and not sending feedback information corresponding to the NR-V data, thereby ensuring co-channel coexistence without affecting LTE-V performance.
  • a side link communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a resource occupied by LTE-V transmission, and the first resource belonging to a first resource set; determining a second resource based on a third resource, the third resource being a candidate resource for sending NR-V data, the second resource being a resource for carrying feedback information corresponding to the NR-V data, and the second resource belonging to the first resource set; determining, based on the resources occupied by the LTE-V transmission, that the resources occupied by the LTE-V transmission and the second resource do not overlap; sending a third indication information, the third indication information being used to indicate disabling of a hybrid automatic repeat request HARQ corresponding to the NR-V data, the HARQ being the feedback information carried on the second resource.
  • the method includes: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a resource occupied by LTE-V transmission, and the first resource belonging to a first resource set; sending third indication information, the third indication information being used to indicate disabling of a hybrid automatic repeat request HARQ corresponding to the NR-V data, the HARQ being feedback information carried on a second resource, and the second The resources overlap with the resources occupied by the LTE-V transmission.
  • the HARQ information corresponding to the NR-V data is disabled, which can ensure co-channel coexistence without affecting LTE-V performance.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction, transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals. It should be understood that in this case, the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the third indication information may be PSSCH, or the second level SCI in PSSCH, or the corresponding field in the second level SCI in PSSCH, or the "indication enable/disable HARQ" field in the second level SCI.
  • the resources occupied by LTE-V transmission can be understood as reserved resources of LTE-V, or reserved resources for LTE-V transmission, or resources that LTE-V has indicated but not used, or resources used by LTE-V and reserved resources.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • the method provided in the ninth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the terminal can obtain the indication information of the first resource through the LTE-V module.
  • the method provided in the ninth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the first terminal or the NR-V module of the first terminal receives indication information of the first resource of the second terminal device.
  • the terminal device can improve the reliability and flexibility of the communication method by acquiring the first resource. Ensure that NR-V can use the resource pool of LTE-V without affecting LTE-V transmission.
  • the first resource is a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is greater than the first threshold.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the resource pool of the NR-V, and the resource pool of the NR-V includes the first resource set. That is, the resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource set dedicated to the NR-V. If the second resource overlaps with the first resource set (that is, the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of LTE-V. If the second resource is located in the resource set dedicated to the NR-V, the feedback information corresponding to the NR-V data is sent on the second resource.
  • the resources occupied by LTE-V transmission are determined to overlap with the second resource, or the second resource overlaps with the resource occupied by the LTE-V transmission, including: the first resource and the second resource overlap in the time domain. That is, the first resource is any resource in the set of resources occupied by LTE-V transmission, and the first resource and the second resource overlap in the time domain, that is, the second resource and the resource occupied by LTE-V transmission overlap in the time domain.
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is the priority used for LTE-V resource selection or reselection
  • the second priority is the priority indicated in the side control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement is a linear average of the total received power on each symbol in the configured subchannels in symbols used to transmit PSSCH (eg, carrying data).
  • the energy measurement value may be an RSRP measurement value and an RSSI measurement value.
  • the terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.
  • the ninth aspect based on the first indication information, it is determined that the resources occupied by the LTE-V transmission overlap with the second resources, or that the second resources do not overlap with the resources occupied by the LTE-V transmission, including: determining that the time domain range of the first resource does not include the time domain resources of the second resource, and not sending feedback information corresponding to the NR-V data, so as to avoid potential impact on the LTE-V transmission, thereby ensuring that NR-V and LTE-V can achieve dynamic coexistence of co-channel transmission without affecting LTE-V performance.
  • the HARQ information corresponding to the NR-V data is disabled, which can ensure co-channel coexistence without affecting LTE-V performance.
  • a side link communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a candidate resource for LTE-V transmission, and the first resource belonging to a first resource set; determining a second resource based on a third resource, the third resource being a candidate resource for sending NR-V data, the second resource being a resource for carrying feedback information corresponding to the NR-V data, and the second resource belonging to the first resource set; determining, based on the candidate resource for LTE-V transmission, that the resources occupied by LTE-V transmission and the second resource do not overlap; sending a third indication information, the third indication information being used to indicate disabling of a hybrid automatic repeat request HARQ corresponding to the NR-V data, the HARQ being the feedback information carried on the second resource.
  • the method includes: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a candidate resource for LTE-V transmission, and the first resource belonging to a first resource set; sending third indication information, the third indication information being used to indicate disabling of a hybrid automatic repeat request HARQ corresponding to the NR-V data, the HARQ being feedback information carried on a second resource, and the second resource overlapping with the resources occupied by the LTE-V transmission.
  • the HARQ information corresponding to the NR-V data is disabled, which can ensure co-channel coexistence without affecting LTE-V performance.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • the candidate resource for LTE-V transmission can be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction, transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals. It should be understood that in this case, the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the third indication information may be PSSCH, or the second level SCI in PSSCH, or the corresponding field in the second level SCI in PSSCH, or the "indication enable/disable HARQ" field in the second level SCI.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • the method provided in the tenth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the terminal can obtain the indication information of the first resource through the LTE-V module.
  • the method provided in the tenth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the first terminal or the NR-V module of the first terminal receives indication information of the first resource of the second terminal device.
  • the terminal device can improve the reliability and flexibility of the communication method. Ensure that NR-V can use the resource pool of LTE-V without affecting LTE-V transmission.
  • the first resource is the remaining candidate resource in the second resource set after excluding the candidate resources that overlap with the resources occupied by LTE-V transmission, and the second resource set is a resource set within the resource selection window corresponding to LTE-V transmission. Due to the influence of PSFCH AGC symbols, NR-V The module determines the candidate resource set according to the reserved resources of LTE-V, which can maximize the guarantee that the transmission on the PSFCH AGC symbol will not affect the transmission of LTE-V.
  • the resource selection window is a time window, or a time period, or a subframe set, or a time slot set.
  • the first resource is the remaining candidate resource in the second resource set after excluding the candidate resources that overlap with the resources occupied by the LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than the first threshold.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the resource pool of the NR-V, and the resource pool of the NR-V includes the first resource set. That is, the resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource set dedicated to the NR-V. If the second resource overlaps with the first resource set (that is, the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of LTE-V. If the second resource is located in the resource set dedicated to the NR-V, the feedback information corresponding to the NR-V data is sent on the second resource.
  • determining, according to the candidate resources for LTE-V transmission, that the resources occupied by the LTE-V transmission overlap with the second resources, or that the second resources overlap with the resources occupied by the LTE-V transmission includes: determining that the resources occupied by the LTE-V transmission overlap with the second resources in the time domain when at least one of the following conditions is met:
  • the second resource does not belong to the first resource.
  • the fourth resource overlaps with the second resource in the time domain, the fourth resource is a remaining candidate resource excluding the first resource from at least one candidate resource included in the first time unit, and the first time slot is the time unit where the second resource is located.
  • the number of the candidate resources included in the first time unit is less than a second threshold, and the second threshold is a maximum number of the candidate resources included in the first time unit.
  • the number of the fourth resources is not zero.
  • candidate resources are excluded within the first time unit.
  • the number of the fourth resources is not zero, which can be understood as candidate resources being excluded in the first time domain unit, or the number of candidate resources excluded in the first time domain unit is not zero.
  • time domain unit can be understood as a subframe in LTE-V and as a time slot in NR-V.
  • the first resource does not overlap with the second resource
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is the priority used for LTE-V resource selection or reselection
  • the second priority is the priority indicated in the side control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement value is a linear average of the total received power on each symbol in a symbol used to transmit a PSSCH (e.g., carrying data) and in a configured subchannel.
  • the energy measurement value may be a RSRP measurement value and a RSSI measurement value.
  • the terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.
  • the HARQ information corresponding to the NR-V data is disabled, which can ensure co-channel coexistence without affecting LTE-V performance.
  • a sidelink communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a resource occupied by LTE-V transmission, and the first resource belonging to a first resource set; determining a second resource according to a third resource, the third resource being a candidate resource for sending NR-V data, and the second resource being a candidate resource for carrying the NR-V data;
  • the second resource belongs to the first resource set; according to the resources occupied by the LTE-V transmission, it is determined that the resources occupied by the LTE-V transmission overlap with the second resource; and the third resource is not used to send the NR-V data.
  • the method includes: obtaining first indication information, the first indication information is used to indicate a first resource, the first resource is a resource occupied by LTE-V transmission, and the first resource belongs to a first resource set; NR-V data is not sent on a third resource, the second resource corresponding to the third resource overlaps with the resource occupied by the LTE-V transmission, the second resource is a resource for carrying feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set.
  • NR-V data is not sent on the third resource corresponding to the second resource, thereby ensuring co-channel coexistence without affecting LTE-V performance.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • not using the third resource to send NR-V data can be understood as not selecting the third resource to send NR-V data in the resource selection process, or can be understood as not using the third resource to send NR-V data after the resource selection process is completed.
  • the second resource is implicitly related to the third resource, and the terminal device can determine the second resource through the third resource, or the terminal device can determine the third resource through the second resource.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction, transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals. It should be understood that in this case, the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • the resources occupied by LTE-V transmission can be understood as reserved resources of LTE-V, or reserved resources for LTE-V transmission, or resources that LTE-V has indicated but not used, or resources used by LTE-V and reserved resources.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • the method provided in the eleventh aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the terminal can obtain the indication information of the first resource through the LTE-V module.
  • the method provided in the eleventh aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the first terminal or the NR-V module of the first terminal receives indication information of the first resource of the second terminal device.
  • the terminal device can improve the reliability and flexibility of the communication method. Ensure that NR-V can use the resource pool of LTE-V without affecting LTE-V transmission.
  • the first resource is a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is greater than the first threshold.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the resource pool of the NR-V, and the resource pool of the NR-V includes the first resource set. That is, the resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource set dedicated to the NR-V. If the second resource overlaps with the first resource set (that is, the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of LTE-V. If the second resource is located in the resource set dedicated to the NR-V, the feedback information corresponding to the NR-V data is sent on the second resource.
  • the determination that the resources occupied by the LTE-V transmission overlap with the second resources, or that the second resources overlap with the resources occupied by the LTE-V transmission includes: the first The resource and the second resource overlap in the time domain. That is, the first resource is any one of the resources in the set of resources occupied by LTE-V transmission, and the first resource and the second resource overlap in the time domain, that is, the second resource and the resources occupied by LTE-V transmission overlap in the time domain, thereby ensuring that NR-V and LTE-V can achieve dynamic coexistence of co-channel transmission without affecting LTE-V performance.
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is the priority used in LTE-V resource selection or reselection
  • the second priority is the priority indicated in the side control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement value is a linear average of the total received power on each symbol in a symbol used to transmit a PSSCH (e.g., carrying data) and in a configured subchannel.
  • the energy measurement value may be an RSRP measurement value and an RSSI measurement value.
  • the terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.
  • NR-V data is not sent on the third resource corresponding to the second resource, thereby ensuring co-channel coexistence without affecting LTE-V performance.
  • a sidelink communication method comprising: obtaining first indication information, the first indication information being used to indicate a first resource, the first resource being a candidate resource for LTE-V transmission, and the first resource belonging to a first resource set; determining a second resource based on a third resource, the third resource being a candidate resource for sending NR-V data, the second resource being a resource for carrying feedback information corresponding to the NR-V data, and the second resource belonging to the first resource set; determining, based on the candidate resource for LTE-V transmission, that the resources occupied by LTE-V transmission and the second resources do not overlap; and not using the third resource to send the NR-V data.
  • the method includes: obtaining first indication information, the first indication information is used to indicate a first resource, the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set; not sending NR-V data on a third resource, the second resource corresponding to the third resource overlaps with the resources occupied by the LTE-V transmission, the second resource is a resource for carrying feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set.
  • NR-V data is not sent on the third resource corresponding to the second resource, thereby ensuring co-channel coexistence without affecting LTE-V performance.
  • the NR-V data is data transmitted using the NR wireless access system
  • the feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.
  • the candidate resource for LTE-V transmission can be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.
  • not using the third resource to send NR-V data can be understood as not selecting the third resource to send NR-V data in the resource selection process, or can be understood as not using the third resource to send NR-V data after the resource selection process is completed.
  • the second resource is implicitly related to the third resource, and the terminal device can determine the second resource through the third resource, or the terminal device can determine the third resource through the second resource.
  • the first indication information comes from the LTE-V module of the same terminal, that is, the interaction, transparent transmission or transmission between the NR-V module and the LTE-V module included in the same terminal.
  • the first indication information comes from other terminals, that is, transmission between different terminals. It should be understood that in this case, the first indication information can be PSSCH, or the second-level SCI in PSSCH, or the corresponding field in the second-level SCI in PSSCH.
  • the first resource set is a set of shared resources, that is, a resource set shared by NR-V and LTE-V (that is, used for LTE-V transmission and also for NR-V transmission). Or it can be understood as a resource set of LTE-V (and the resource set is shared with NR-V), or it can be understood as the overlapping part of the LTE-V resource set and the NE-V resource set.
  • the method provided in the twelfth aspect can be performed by the first terminal.
  • the first resource can be determined by the LTE-V module of the first terminal.
  • the first terminal or the NR-V module of the terminal can obtain the indication information of the first resource through the LTE-V module.
  • the first terminal or the NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.
  • the method provided in the twelfth aspect can be executed by the first terminal.
  • the first resource can be determined by the LTE-V module of the second terminal.
  • the terminal device can improve the reliability and flexibility of the communication method. Ensure that NR-V can use the resource pool of LTE-V without affecting LTE-V transmission.
  • the first resource is the remaining candidate resources in the second resource set after excluding the candidate resources that overlap with the resources occupied by LTE-V transmission, and the second resource set is a resource set within the resource selection window corresponding to the LTE-V transmission.
  • the NR-V module determines the candidate resource set based on the reserved resources of LTE-V, which can maximize the guarantee that the transmission on the PSFCH AGC symbol will not affect the transmission of LTE-V.
  • the resource selection window is a time window, or a time period, or a subframe set, or a time slot set.
  • the first resource is the remaining candidate resource in the second resource set after excluding the candidate resources that overlap with the resources occupied by the LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than the first threshold.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in a shared resource pool.
  • the shared resource pool can be understood as the first resource set.
  • the feedback information corresponding to the NR-V data is carried in the PSFCH, and the PSFCH resources are periodically configured in the resource pool of the NR-V, and the resource pool of the NR-V includes the first resource set. That is, the resource pool of the NR-V may be the first resource set, or the resource pool of the NR-V may include the first resource set and a resource set dedicated to the NR-V. If the second resource overlaps with the first resource set (that is, the second resource is in the first resource set), it is necessary to determine whether the PSFCH transmission on the second resource will affect the performance of LTE-V. If the second resource is located in the resource set dedicated to the NR-V, the feedback information corresponding to the NR-V data is sent on the second resource.
  • determining, according to the candidate resources for LTE-V transmission, that the resources occupied by the LTE-V transmission overlap with the second resource, or that the second resource overlaps with the resources occupied by the LTE-V transmission includes: determining, according to the candidate resources for LTE-V transmission, that the resources occupied by the LTE-V transmission overlap with the second resource, including: determining that the resources occupied by the LTE-V transmission overlap with the second resource in the time domain when at least one of the following conditions is met:
  • the second resource does not belong to the first resource.
  • the fourth resource overlaps with the second resource in the time domain, and the fourth resource is a remaining candidate resource excluding the first resource from at least one candidate resource included in a first time unit, and the first time unit is the time unit where the second resource is located.
  • the number of the candidate resources included in the first time unit is less than a second threshold, and the second threshold is a maximum number of the candidate resources included in the first time unit.
  • the number of the fourth resources is not zero.
  • candidate resources are excluded within the first time unit.
  • the number of the fourth resources is not zero, which can be understood as candidate resources being excluded in the first time domain unit, or the number of candidate resources excluded in the first time domain unit is not zero.
  • time domain unit can be understood as a subframe in LTE-V and as a time slot in NR-V.
  • the first resource does not overlap with the second resource
  • the energy measurement value is an RSRP measurement value
  • the first threshold corresponds to a first priority and/or a second priority
  • the first priority is the priority used for LTE-V resource selection or reselection
  • the second priority is the priority indicated in the side control information SCI.
  • SCI is control information carried in PSCCH.
  • SCI can also be understood or replaced by SA.
  • the priority can be the priority in LTE-V transmission (ProSe Per-Packet Priority, PPPP), or the priority in NR-V transmission.
  • PPPP ProSe Per-Packet Priority
  • the energy measurement value is one of an RSSI measurement value, a CQI measurement value, an SINR measurement value, and an SNR measurement value
  • the first threshold is preset or configured.
  • the RSSI measurement value is a linear average of the total received power on each symbol in a symbol used to transmit a PSSCH (e.g., carrying data) and in a configured subchannel.
  • the energy measurement value may be a RSRP measurement value and a RSSI measurement value.
  • the terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.
  • NR-V data is not sent on the third resource corresponding to the second resource, thereby ensuring co-channel coexistence without affecting LTE-V performance.
  • a sidelink communication device comprising modules or units for executing the method in any possible implementation of any one of the first to twelfth aspects.
  • the sidelink communication device may be a terminal device or a module in a terminal device.
  • a computer program product which includes: a computer program (also referred to as code, or instruction), which, when executed, enables a computer to execute the method in the above-mentioned first to twelfth aspects and any possible implementation of the first to twelfth aspects.
  • a computer program also referred to as code, or instruction
  • a computer-readable medium which stores a computer program (also referred to as code, or instructions) which, when executed on a computer, enables the computer to execute the method in the above-mentioned first to twelfth aspects and any possible implementation of the first to twelfth aspects.
  • a computer program also referred to as code, or instructions
  • a processing device comprising a processor and a memory.
  • the processor is used to read instructions stored in the memory, and can receive signals through a receiver and transmit signals through a transmitter to execute the method in any possible implementation of the first to twelfth aspects and the first to twelfth aspects.
  • the number of the processor is one or more, and the number of the memory is one or more.
  • the memory may be integrated with the processor, or the memory may be provided separately from the processor.
  • the memory can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated with the processor on the same chip or can be separately set on different chips.
  • ROM read-only memory
  • the embodiments of the present application do not limit the type of memory and the setting method of the memory and the processor.
  • the relevant data interaction process can be a process of outputting indication information from a processor
  • receiving capability information can be a process of receiving input capability information from a processor.
  • the processed output data can be output to a transmitter, and the input data received by the processor can come from a receiver.
  • the transmitter and the receiver can be collectively referred to as a transceiver.
  • the processor in the above-mentioned aspect 16 can be a chip.
  • the processor can be implemented by hardware or by software.
  • the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor, which is implemented by reading the software code stored in the memory.
  • the memory can be integrated in the processor or can be located outside the processor and exist independently.
  • FIG1 is a schematic diagram of periodically configured PSFCH resources.
  • FIG2 is a schematic diagram of the mapping relationship between PSSCH resources and PSFCH resources.
  • FIG. 3 is a schematic diagram of a method of indicating the time-frequency position of a resource by an SCI.
  • FIG. 4 is a schematic diagram of another method of indicating the time-frequency position of a resource by SCI.
  • FIG5 is a schematic diagram of a communication scenario applicable to an embodiment of the present application.
  • FIG6 is a schematic diagram of the frame structure of the NR-V system and the LTE-V system.
  • FIG. 7 is a schematic flowchart of a sidelink communication method 100 provided in an embodiment of the present application.
  • FIG8 is a method for indicating a resource set provided in an embodiment of the present application.
  • FIG. 9 is another method of indicating a resource set provided in an embodiment of the present application.
  • Figure 10 is a schematic diagram of NR-V and LTE-V time slot units under different SCSs provided in an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a candidate single resource provided in an embodiment of the present application.
  • FIG12 is a schematic diagram of a resource time-frequency position out of range provided in an embodiment of the present application.
  • FIG13 is a schematic flowchart of a side link communication method 200 provided in another embodiment of the present application.
  • FIG14 is a schematic flowchart of a sidelink communication method 300 provided in another embodiment of the present application.
  • FIG15 is a schematic block diagram of a sidelink communication device 1000 provided in the present application.
  • FIG16 is a schematic block diagram of a sidelink communication device 1100 provided in the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 5G fifth generation
  • NR new radio
  • the technical solution provided in the embodiment of the present application can also be applied to machine type communication (MTC), Long Term Evolution-machine (LTE-M), device to device (D2D) network, machine to machine (M2M) network, Internet of Things (IoT) network or other networks.
  • IoT network can include vehicle networking, for example.
  • vehicle to X, V2X, X can represent anything
  • the V2X can include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian (V2P) communication or vehicle to network (V2N) communication, etc.
  • the terminal device in the embodiments of the present application may refer to a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a mobile terminal, a vehicle-mounted terminal, an industrial robot, an industrial automation device, a user agent or a user device.
  • UE user equipment
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), etc., and the embodiments of the present application are not limited to this.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device may be a complete vehicle device, a vehicle, an on-board unit (OBU), a roadside unit (RSU), a telematics box (T-box), a chip or a system on chip (SOC), etc.
  • OBU on-board unit
  • RSU roadside unit
  • T-box telematics box
  • SOC system on chip
  • the above chip or SOC may be installed in a vehicle, OBU, RSU or T-box.
  • the network device in the embodiments of the present application may be a device for communicating with a terminal device.
  • the network device may be a base station (Base Transceiver Station, BTS) in a Global System of Mobile communication (GSM) system or a Code Division Multiple Access (CDMA) system, or a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station (Evolutional NodeB, eNB or eNodeB) in an LTE system, or a road site unit (Road Site Unit, RSU), or a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, an on-board device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc., and the embodiments of the present application are not limited thereto.
  • BTS Base Transceiver Station
  • GSM Global System of
  • the terminal device or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory).
  • the operating system can be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application.
  • the execution subject of the method provided in the embodiment of the present application can be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute a program.
  • computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or tapes, etc.), optical disks (e.g., compact disks (Compact Disc, CD), digital versatile disks (Digital Versatile Disc, DVD), etc.), smart cards and flash memory devices (e.g., Erasable Programmable Read-Only Memory (EPROM), card, stick or key drive, etc.)
  • EPROM Erasable Programmable Read-Only Memory
  • the various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing and/or carrying instructions and/or data.
  • multiple applications can be run at the application layer.
  • the application that executes the communication method of the embodiment of the present application and the application used to control the receiving device to complete the action corresponding to the received data may be different applications.
  • the scheduling granularity of the physical sidelink control channel PSCCH (physical sidelink control channel, PSCCH) or the physical sidelink shared channel (physical sidelink shared channel, PSSCH) is a time slot in the time domain and one or more continuous sub-channels in the frequency domain.
  • the transmitting terminal device can send sidelink information on this resource.
  • Three channels, including PSCCH, PSSCH, and physical sidelink feedback channel (physical sidelink feedback channel, PSFCH), and demodulation reference signal (demodulation reference signal, DM-RS), channel state information reference signal (channel state information reference signal, CSI-RS) and other signals can be carried on one resource.
  • PSCCH carries the first-level sidelink control information (sidelink control information, SCI)
  • PSSCH carries the second-level SCI and/or data
  • PSFCH carries feedback information.
  • PSCCH/PSSCH includes PSCCH and/or PSSCH.
  • a resource pool is a collection of time-frequency resources.
  • a resource pool refers to a collection of time-frequency resources used by a UE in a sidelink to transmit or receive PSSCH.
  • the frequency domain resources contained in the resource pool are continuous.
  • the time domain resources contained in the resource pool may be continuous or discontinuous.
  • a UE may be configured with one or more resource pools, and it should be understood that LTE V transmission and NR V transmission in the embodiment of the present application can use the same resource pool.
  • hybrid automatic repeat request (HARQ) technology is usually used by both the sender and the receiver to ensure the correctness of data transmission.
  • HARQ technology combines forward error correction (FEC) with automatic repeat request (ARQ).
  • FEC forward error correction
  • ARQ automatic repeat request
  • NACK negative acknowledgment
  • the sending end After receiving the NACK signal, the sending end will further transmit a part of the information bits and/or redundant bits (called retransmission data) to the receiving end. After receiving the retransmission data, the receiving end will combine it with the previously received data for decoding. If the retransmission data still cannot be decoded correctly, it can be retransmitted again. As the number of retransmissions increases, the information bits and/or redundant bits continue to accumulate, and the channel coding rate continues to decrease, thereby continuously improving the decoding effect.
  • retransmission data a part of the information bits and/or redundant bits
  • Unicast transmission and multicast transmission in NR V2X support HARQ feedback.
  • There is only one receiving end for unicast that is, communication between a pair of UEs.
  • There is a limited number of receiving ends for multicast that is, the sending UE sends multicast data, and a limited number of UEs in the group receive the data.
  • the HARQ information is carried in the physical sidelink feedback channel PSFCH.
  • Unicast supports ACK or NACK feedback mode, that is, the receiving UE feeds back ACK if it successfully receives the data, and feeds back NACK if it fails to successfully receive the data.
  • PSCCH Physical Sidelink Control Channel
  • PSCCH carries the first-order SCI.
  • PSCCH and SCI have the same meaning when no distinction is made.
  • PSCCH occupies two or three orthogonal frequency division multiplexing (orthogonal freq, OFDM) symbols starting from the second sideline symbol; in the frequency domain, the physical resource blocks (physical resource blocks, PRB) carrying PSCCH start from the lowest PRB of the lowest subchannel of the associated PSSCH, and the number of PRBs occupied by PSCCH is within the subband range of a PSSCH.
  • PSCCH consists of ⁇ 10,12,15,20,25 ⁇ resource blocks (resource blocks, RB), and the specific value is indicated by the radio resource control (reference signal received power, RRC) signaling or pre-configured.
  • RRC radio resource control
  • PSSCH Physical Sidelink Shared Channel
  • PSSCH carries the second-order SCI and medium access control-control element (MAC CE) and data.
  • SCI may refer to first-order SCI and/or second-order SCI.
  • SCI refers to any one of first-order SCI, second-order SCI, first-order and second-order SCI.
  • time domain on resources without PSFCH, there are 12 symbols used to carry PSSCH; on resources with PSFCH, there are 9 symbols used to carry PSSCH. In the frequency domain, it occupies consecutive LsubCh subchannels.
  • the first OFDM symbol copies the information sent on the second symbol for automatic gain control (AGC).
  • AGC automatic gain control
  • PSFCH Physical Sidelink Feedback Channel
  • PSFCH resources represent resources used to transmit PSFCH.
  • one PSFCH occupies 2 consecutive orthogonal frequency division multiplexing (OFDM symbols) in the time domain and 1 physical resource block (PRB) in the frequency domain.
  • OFDM symbols Orthogonal frequency division multiplexing
  • PRB physical resource block
  • the penultimate and third OFDM symbols carry PSFCH.
  • the signal on the penultimate symbol is a repetition of the signal on the penultimate symbol so that the receiving terminal device can perform AGC adjustment.
  • PSFCH can be used to transmit feedback information.
  • the transmitter carries the hybrid automatic repeat request acknowledgment (HARQ-ACK) feedback enable information in the control information
  • the receiver can feedback the corresponding positive (ACK) or negative (NACK) information based on the decoding result of the PSSCH.
  • the ACK or NACK information is transmitted through the PSFCH.
  • HARQ-ACK hybrid automatic repeat request acknowledgment
  • the terminal device may receive and send PSSCH in two consecutive time slots, or may receive and send PSSCH and PSFCH in the same time slot. Therefore, an additional symbol is required after the PSSCH and PSFCH symbols for the terminal device to switch between sending and receiving.
  • This symbol is located at the start symbol of the transmission, such as symbol #0 for PSCCH/PSSCH transmission, such as symbol #11 for PSFCH transmission. Since it is not possible to receive and decode data while performing AGC adjustment, the signal on the AGC symbol is a copy of the signal content on the next symbol. Since SL transmission maintains equal power on each symbol, the content of the remaining symbols can be received based on the result of automatic gain control of the AGC symbol.
  • PSFCH resources can be periodic resources configured in a resource pool.
  • the periodic parameter is N_PSSCH ⁇ PSFCH
  • FIG. 1 is a schematic diagram of PSFCH resources.
  • PSFCH resources are periodically configured in the resource pool.
  • the configuration period of PSFCH resources is N time slots.
  • PSFCH occupies 1 symbol, called PSFCH symbol.
  • the previous symbol of the PSFCH symbol is the AGC symbol, that is, the previous symbol of the PSFCH symbol is a copy of the PSFCH symbol, and the content carried by the previous symbol of the PSFCH symbol and the PSFCH symbol is the same.
  • the previous symbol of the previous symbol of the PSFCH symbol is the GP symbol, that is, the second symbol from the PSFCH symbol to the front is the GP symbol.
  • the role of this symbol is to convert the transmission and reception between two transmissions. For example, the UE receives data in symbols 1-9 and sends PSFCH in symbols 11-12. The UE needs time for transmission and reception conversion.
  • the timing of HARQ feedback is the time interval between PSSCH and PSFCH. Assuming that the end position of a PSSCH transmission is in time slot n, the corresponding time slot for HARQ feedback is the first time slot with PSFCH resources including and after time slot n+k.
  • PSFCH resources can also be called PSFCH transmission opportunities.
  • k reflects the processing capability of the terminal. For example, k can be 2 or 3, etc.
  • the frequency domain and code domain resources of PSFCH are determined using implicit association rules.
  • the available PSFCH resources in a PSFCH feedback slot are allocated to each subchannel in the feedback cycle in a sequential manner, first in the time domain and then in the frequency domain.
  • FIG2 shows an example of the mapping relationship between PSSCH resources and PSFCH resources.
  • the number of subchannels is 3, each subchannel contains 10 PRBs, 30 PRBs can be used to transmit HARQ information, and the number of PRBs configured for transmitting HARQ information is 12. In this way, each subchannel can correspond to 2 physical resource blocks (PRBs).
  • PRBs physical resource blocks
  • subchannel (0, 0) corresponds to a subchannel index of 0 and a time slot index of 0, and the subchannel corresponds to feedback resources with PRB indices of 0, 1, and 2.
  • Each RB also corresponds to code domain resources, including CS (Cyclic Shift) pairs.
  • the logarithm of CS is related to the length of the sequence. If the sequence length is 12, the maximum number of CS logarithms is 6.
  • the configuration of CS pairs N_"CS" ⁇ "PSFCH" is 3 pairs, then the frequency domain and code domain resources corresponding to the subchannel (0,0) are as shown in the above figure, that is, one subchannel corresponds to 6 resources that can be used to transmit HARQ (the granularity of the resource in the frequency domain is one PRB, and the code domain is one CS pair).
  • the UE uses the resource selection method of mode 2 to select resources.
  • the UE uses the first-level SCI to indicate the time-frequency resources.
  • the first-level SCI indicates at most 2 resources or 3 resources. This is configured on the resource pool by the network device, or pre-configured on the resource pool.
  • the first resource indicated by the SCI is the resource used by the SCI scheduling.
  • the second resource indicated by the SCI and the third resource are reserved resources, that is, the resources that the UE has not used when the SCI indicates.
  • Time domain resource allocation field when the maximum number of resources indicated by the SCI is 2, the number of bits occupied by this field is 5 bits; when the maximum number of resources indicated by the SCI is 3, the number of bits occupied by this field is 9 bits.
  • the UE needs to indicate 3 resources, R1-0, R1-1 and R1-2. It is necessary to indicate their time slots, frequency domain starting positions and lengths.
  • the frequency domain resource allocation field is used to indicate the starting position and frequency domain length of the resources. And the frequency domain lengths of the resources indicated by SCI are the same.
  • the function of the time domain resource allocation field is to indicate the actual logical time interval of 1 or 2 resources when the maximum number of resources indicated by the SCI is 2, and the actual logical time interval of 1, 2 or 3 resources when the maximum number of resources indicated by the SCI is 3.
  • N is the number of resources actually indicated by the SCI.
  • the time interval is determined as follows:
  • the time slot where the first resource is located is the time slot for receiving SCI.
  • ti represents the time interval (time domain offset value) in the resource pool compared with the first resource in the logical time slot.
  • the resources indicated by SCI include used resources R1-0 and reserved resources R1-1, R1-2; the frequency domain resource allocation field indicates the frequency domain starting position of the second resource R1-1 and the frequency domain starting position of the third resource R1-2 and the frequency domain length of the three resources.
  • the frequency domain starting position n1-0 of the first resource R1-0 does not need to be indicated, because when other UEs detect SCI, they can infer the frequency domain starting position of the first resource based on the sub-channel where the SCI is located, so no additional indication is required.
  • the multiplexing structure diagram of PSCCH and PSSCH is as follows.
  • the resources indicated by the SCI include the used resource R1-0 and the reserved resources R1-1, R1-2; R2-0, R2-1, R2-2.
  • R2-0, R2-1, R2-2 are determined based on R1-0 and the reserved resources R1-1, R1-2 and the period.
  • the time interval between resource R1-0 and resource R2-0 is period P
  • the time interval between resource R1-1 and resource R2-1 is period P
  • the time interval between resource R1-2 and resource R2-2 is period P
  • period P is determined based on the resource reservation period field in the SCI
  • the number of bits occupied is N rsv_period is a set of period values configured by the higher layer.
  • Other UEs can infer the first cycle indicated by detecting the TRIV, FRIV and resource reservation cycle fields in the SCI. resources, and the resources indicated in the subsequent cycles.
  • FRIV field is determined as follows:
  • the candidate single subframe resource may be any L subCH consecutive subchannels in any subframe in the time interval [n+T 1 ,n+T 2 ], where the values of T 1 and T 2 depend on the UE implementation and meet the following restrictions:
  • T1 must satisfy T 1 ⁇ 4, and the value of T2 must satisfy T 2min (prio TX ) ⁇ T 2 ⁇ 100. If the upper layer configures T 2min (prio TX ) corresponding to prio TX , this value is used; otherwise, 20 ⁇ T 2 ⁇ 100. The value of T 2 should meet the latency requirement.
  • the total number of candidate single subframe resources is M total .
  • Step 2 UE monitors subframes
  • subframe n belongs to the set Otherwise subframe Is the subframe n after which belongs to the set
  • the UE shall perform the following steps based on the PSCCH decoding results and S-RSRRI measurement results in these subframes:
  • Step 4 The initialization of set SA is the union of all candidate single subframe resources.
  • Set SB is initialized as an empty set.
  • Step 5 The UE excludes candidate single time slot resources that meet all of the following conditions from the set SA :
  • Step 6 The UE excludes candidate single time slot resources R x,y that meet all of the following conditions from the set SA :
  • the SCI is received, and the "resource reservation" field and the "priority” field in the SCI indicate P rsvp_RX and prio RX respectively.
  • the received SCI or will be in the subframe
  • Step 7 If the number of candidate single subframe resources remaining in set SA is less than 0.2 ⁇ Mtotal , then increase Tha,bi by 3dB and execute step 4 again.
  • Step 9 The UE moves the candidate single subframe resources R x,y from the set SA to the set SB in the ascending order of Ex,y. Repeat this process until the number of candidate single subframe resources in the set SB is greater than or equal to 0.2 ⁇ M total .
  • D2D device-to-device
  • the application of D2D technology can reduce the burden on cellular networks, reduce the battery power consumption of user devices, increase data transmission rates, and well meet the needs of users for proximity services.
  • D2D technology allows multiple user devices that support D2D functions to conduct direct discovery and direct communication with or without network infrastructure.
  • the application scenario of the Internet of Vehicles based on D2D technology has been proposed, but due to security considerations, the latency requirements in this scenario are very high, and the existing D2D technology cannot meet its security requirements.
  • V2X communication refers to the communication between a vehicle and anything outside, including vehicle to vehicle (V2V), vehicle to pedestrian (V2P), vehicle to infrastructure (V2I), and vehicle to network (V2N).
  • V2V vehicle to vehicle
  • V2P vehicle to pedestrian
  • V2I vehicle to infrastructure
  • V2N vehicle to network
  • V2X communication is aimed at high-speed equipment represented by vehicles. It is the basic technology and key technology for applications in scenarios with very high communication latency requirements in the future, such as smart cars, autonomous driving, and intelligent transportation systems.
  • V2X communication can support communication scenarios with and without network coverage, and its resource allocation method can adopt network access equipment scheduling mode, such as Evolved Universal Terrestrial Radio Access Network Node B (E-UTRAN Node B, referred to as eNB) scheduling mode and terminal device self-selection mode.
  • E-UTRAN Node B Evolved Universal Terrestrial Radio Access Network Node B
  • eNB Evolved Universal Terrestrial Radio Access Network Node B
  • V-terminal devices Vehicle terminal devices, referred to as V-terminal devices
  • V-terminal devices can send some of their own information, such as location, speed, intention (turning, merging, reversing), etc., periodically and some non-periodic event-triggered information to the surrounding V-terminal devices.
  • the V-terminal devices will also receive information from surrounding users in real time.
  • FIG. 5 are schematic diagrams of communication scenarios applicable to embodiments of the present application.
  • the information transmission method provided in the embodiments of the present application can be applied to terminal direct communication (sidelink communication), Internet of Vehicles, cellular communication (including 5G NR communication, LTE), and WiFi communication systems, such as terminal devices in sidelink communication.
  • the terminal device can communicate via sidelink when there is no network coverage.
  • the terminal device can also be located within the coverage area of the network device, and the terminal device within the coverage area can also communicate directly (sidelink communication) with the terminal device outside the coverage area.
  • the vehicle-mounted terminal needs to maintain a connection with the network to obtain some configuration information, and also needs to maintain a connection with other vehicle-mounted terminals to achieve vehicle-mounted communication.
  • the connection between the vehicle-mounted terminal device and the base station is an uplink and a downlink, and the connection between the vehicle-mounted terminal devices is a sidelink.
  • the embodiments of the present application can also be applied to other communication systems, and the number of network devices and terminal devices included in the communication system is not limited. As long as there is an entity in the communication system that can send information, there are other entities in the communication system that can receive information.
  • the network device is used to provide communication services for the terminal device and access the core network.
  • the terminal device can access the network by searching for synchronization signals, broadcast signals and other signals sent by the network device, thereby establishing communication with the network device.
  • the co-channel coexistence of LTE-V transmission and NR-V transmission is very common, that is, the time-frequency resource set that can be used by LTE-V transmission and NR-V transmission is the same. Therefore, in order to avoid conflicts between LTE-V transmission and NR-V transmission, NR-V transmission needs to consider the location of LTE-V transmission and not conflict with the location of LTE-V transmission.
  • LTE-V and NR-V have different understandings of the frame structure.
  • LTE-V transmission occupies 14 symbols in one subframe, and the time domain unit for scheduling data is one subframe.
  • NR-V transmission occupies 14 symbols in one time slot, and the time domain unit for scheduling data is one time slot.
  • the first symbol in a subframe is used for an automatic gain control symbol, that is, symbol #0 is an AGC symbol.
  • symbol #0 the symbol before the first symbol of the PSSCH
  • symbol #11 the symbol before the PSFCH symbol
  • the UE that uses symbols #1’-#9’ to transmit data and the UE that uses symbol 12 to transmit PSFCH are not necessarily the same, and there may be more than one UE used to transmit PSFCH in symbol #11’, and the power of transmitting PSSCH in symbols #1’-#9’ and the power of transmitting PSFCH in symbol #12’ are different, so AGC symbols are required for power adjustment before transmitting PSFCH.
  • the embodiments of the present application provide a side link communication method and apparatus, and a user equipment can determine whether the resources corresponding to the feedback information corresponding to the NR-V data overlap with those used for LTE-V transmission in the time domain, and control the NR-V transmission of the user equipment according to the determination result, thereby avoiding the problem that when the NR PSFCH transmission and the LTE-V transmission overlap in the time domain, the sending of the NR-V transmission feedback information affects the receiving performance of the LTE-V transmission.
  • Fig. 7 shows a method 100 for information transmission provided in an embodiment of the present application.
  • the method 100 may include the following steps.
  • terminal #A obtains indication information #1 (an example of the first indication information), indication information #1 is used to indicate resource #A (an example of the first resource), resource #A is a resource occupied by LTE-V transmission, or resource #A is a candidate resource for LTE-V transmission, resource #A belongs to resource set #1 (an example of the first resource set).
  • indication information #1 is used to indicate resource #A (an example of the first resource)
  • resource #A is a resource occupied by LTE-V transmission
  • resource #A is a candidate resource for LTE-V transmission
  • resource #A belongs to resource set #1 (an example of the first resource set).
  • resource #A is the resource occupied by LTE-V transmission, which can be understood as the resource #A used by LTE-V transmission before the resource selection moment, and the resource reserved for LTE-V transmission after the resource selection moment.
  • the resources occupied by LTE-V transmission can be understood as the reserved resources for LTE-V transmission, or can be understood as the reserved resources for LTE-V.
  • it can be understood as the resources occupied by LTE-V and the resources to be occupied.
  • it can be understood as the resources to be occupied by LTE-V.
  • indication information #1 may indicate more than one resource occupied by LTE transmission.
  • terminal #A obtains a set of resources occupied by LTE-V transmission, or a set of candidate resources for LTE-V transmission. Details are described below.
  • resource set #1 can be understood as a resource pool. It can also be understood as a resource pool configured by terminal #A, or as a shared resource pool.
  • the meaning of a shared resource pool can be understood as a set of time-frequency resources that can use the NR wireless access system and the LTE wireless access system for channel or signal transmission. It is not limited here that a certain resource in the shared resource pool is used by the NR wireless access system and the LTE wireless access system at the same time, and the coexistence mode of the NR wireless access system and the LTE wireless access system in the resource pool is not limited.
  • the shared resource pool can be understood as a resource pool where NR-V and LTE-V coexist on the same channel. Or the shared resource pool is a resource pool where co-channels coexist. Or the shared resource pool is a resource pool used by NR-V and LTE-V.
  • terminal #A can be understood as the NR-V module of terminal #A or a module with NR-V function in terminal #A.
  • the resources occupied by LTE-V transmission are N consecutive subchannels in the frequency domain and 1 subframe or a time slot in the time domain.
  • the value of N is at least 1.
  • the resources occupied by LTE-V transmission are the resources indicated by the SCI detected by the LTE-V module of terminal #A or the LTE-V module of other terminals. Further, the resources indicated by the detected SCI can be determined in the process of resource selection.
  • the number of frequency domain subchannels of the resources occupied by LTE-V transmission can be one or more. In the embodiments of the present application, This is not particularly limited.
  • terminal #A can obtain indication information #1 in a variety of ways.
  • the NR-V module of terminal #A can receive indication information sent by the LTE-V module of the same terminal, thereby obtaining the time-frequency position of resource #A. This can be understood as the interaction or transparent transmission between the NR-V module and the LTE-V module.
  • terminal #A can also obtain indication information #1 in other ways.
  • the NR-V module of terminal #A obtains the indication information sent by the LTE-V module of another terminal, thereby obtaining the time-frequency position of resource #A.
  • resource #A is a resource occupied by LTE-V transmission, and resource #A ⁇ resource set #A1. That is, terminal #A obtains resource set #A1 (it can be understood that indication information #1 indicates resource set #A1).
  • resource set #A1 is a subset of resource set #1 (or resource set #A1 and resource pool #1 overlap), and the resources in resource set #A1 are resources occupied by LTE-V transmission.
  • Resource #A can be one resource in resource set #A1 or multiple resources in resource set #A1, and this application does not limit this.
  • Resource set #A1 occupies a time window in the time domain.
  • the time window can be a set of time domain units, a set of time slots, or a set of subframes, and this embodiment of the application does not limit this.
  • the range of resource set #A1 in the frequency domain is the range of the LTE-V resource pool or shared resource pool.
  • indication information #1 indicates the time domain position and frequency domain position of resource #A in resource set #A1, so that terminal #A can determine the time and frequency position of the resources occupied by LTE-V transmission through indication information #1.
  • Terminal #A can simultaneously determine multiple groups of time and frequency resources, and the number of resources indicated by each group of time and frequency resources is 3. Among them, the frequency domain starting position of the first resource of the three resources in the group and the time domain position of the first resource are indicated separately. In addition, the starting position, time domain position of the second and third resources, and the frequency domain length of the three resources are indicated using the time domain resource indication value (TRIV) and the time domain resource indication value (FRIV).
  • TAV time domain resource indication value
  • FRIV time domain resource indication value
  • the indication information #1 of the embodiment of the present application may also only indicate the time domain position of resource #A in resource set #A1, and the embodiment of the present application is not limited to this.
  • indication information #1 indicates a time domain reference point, so that terminal #A can determine the time-frequency position of the resources occupied by LTE-V transmission through indication information #1.
  • the time domain position of the first resource in the group is determined according to the time domain reference point and slot offset. It should be understood that if the time domain reference point is the time domain position of the first resource of the first group of time-frequency resources, then the first group of time-frequency resources does not require slot offset.
  • indication information #1 indicates the frequency domain range of resource set #A1.
  • terminal #A can determine the frequency domain range of resources shared by NR-V and LTE-V.
  • indication information #1 indicates the decoding result of SCI
  • terminal #A receives the indication information of the time-frequency resources of resource #A, thereby determining the time-frequency position of the resources occupied by LTE-V transmission.
  • the NR-V module of terminal #A can determine the position of the time-frequency resources of resource #A in resource set #A1 based on the decoding result of SCI transmitted by LTE-V.
  • resource #A is a resource occupied by LTE-V transmission, and resource #A belongs to resource set #A2. That is, terminal #A obtains resource set #A2 (it can be understood that indication information #1 indicates resource set #A2).
  • resource set #A2 is a subset of resource set #1 (or resource set #A2 and resource pool #1 overlap), and the resources in resource set #A2 are all occupied by LTE-V transmission and the corresponding energy measurement value is greater than threshold #A (an example of the first threshold).
  • Resource #A can be one resource in resource set #A2 or multiple resources in resource set #A2, and this application does not limit this.
  • the range of resource set #A2 in the time domain and frequency domain is the same as that of resource set #A1, which will not be repeated here.
  • the energy measurement value is an RSRP measurement value, that is, the resources in resource set #A2 are the resources detected by the LTE-V module as being occupied by LTE-V transmission and whose corresponding reference signal receiving power (RSRP) measurement value is greater than the threshold #A.
  • RSRP reference signal receiving power
  • terminal #A can determine the time-frequency information and energy measurement value of the resources occupied by LTE-V transmission by obtaining indication information #1.
  • the NR-V module of terminal #A obtains indication information #1, and indication information #1 indicates the decoding result of SCI and the RSSP measurement value associated with SCI.
  • Terminal #A determines the time-frequency position of the resources occupied by LTE-V transmission through the indication information.
  • the corresponding DMRS RSRP can be measured according to the DMRS of the PSSCH scheduled by the detected SCI, or according to the DMRS of the PSCCH where the detected SCI is located.
  • the resources occupied by the LTE-V transmission are the resources indicated by the SCI.
  • SCI can also be understood or replaced by SA.
  • SCI is control information carried in PSCCH. Its name is not specifically limited here.
  • the threshold #A is determined according to the priority #A (an example of the first priority) and the priority #B (an example of the second priority).
  • the priority #A is the priority (priority value) used in LTE-V resource selection or reselection
  • the priority #B is the priority (priority value) indicated in the SCI.
  • the priority can be the priority (ProSe Per-Packet Priority, PPPP) in LTE-V transmission, or the priority in NR-V transmission, and the embodiment of the present application is not limited to this.
  • the threshold #A of the RSRP measurement value can also be determined by other means.
  • the threshold #A comes from the RSRP threshold table, and the threshold #A is determined in the RSRP threshold table according to two priority values.
  • the RSRP threshold table is a two-dimensional table, one dimension of which is the priority of sensing, that is, the priority used when performing resource selection or resource reselection, and the other dimension is the priority in the detected SCI.
  • the value range of PPPP is an integer from 1 to 8, including 8 values, where the smaller the value, the higher the priority level, that is, the more important it is.
  • the priority value ranges from 1 to 8, including 8 values, where a smaller value indicates a higher priority, ie, more important.
  • the energy measurement value may also be other measurement values.
  • the energy measurement value is a received signal strength indicator (RSSI) measurement value, a channel quality indication (CQI) measurement value, a signal to interference and noise ratio (SINR) measurement value, or a signal to noise power ratio (SNR) measurement value.
  • RSSI received signal strength indicator
  • CQI channel quality indication
  • SINR signal to interference and noise ratio
  • SNR signal to noise power ratio
  • the threshold #A is configured. That is, the threshold #A can be pre-configured or configured by the network device, or it can be a preset value.
  • terminal #A can determine the time-frequency information and corresponding energy measurement values of the resources occupied by LTE-V transmission by obtaining indication information #1 (which can also be understood as the resources occupied by LTE-V transmission and the corresponding energy measurement values).
  • indication information #1 which can also be understood as the resources occupied by LTE-V transmission and the corresponding energy measurement values.
  • the NR-V module of terminal #A obtains indication information #1, and indication information #1 indicates the resources occupied by LTE-V transmission and one of the above energy measurement values detected by the LTE-V module.
  • the corresponding energy measurement value is an energy measurement value determined by measuring within the resources occupied by LTE-V transmission.
  • resource #A is a candidate resource for LTE-V transmission, and resource #A belongs to resource set #A3.
  • resource set #A3 is a subset of resource set #1 (or resource set #A3 and resource set #1 overlap), and the resources in resource set #A3 are candidate resources that can be used for LTE-V transmission.
  • resource set #A3 is a set of candidate resources remaining after the LTE-V module excludes candidate resources overlapping with the resources occupied by LTE-V transmission in resource set #2 (an example of the second resource set) during resource selection or reselection.
  • resource set #2 is all candidate resources that can be used for LTE-V transmission in the resource selection window.
  • the resource selection window is a time window, or a time period, or a subframe set, or a time slot set.
  • the resource selection window is determined by the LTE-V module or indicated by the NR-V module to the LTE-V module.
  • Resource #A can be a resource in resource set #A3, or it can be multiple resources in resource set #A3, and this application does not limit this.
  • the candidate resources for LTE-V transmission occupy one subframe in the time domain and one or more subchannels in the frequency domain.
  • each candidate resource occupies the same number of subchannels in the frequency domain.
  • the candidate resources for LTE-V transmission can be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.
  • terminal #A can determine candidate resources for LTE-V transmission according to indication information #1, and the candidate resources for LTE-V transmission can be one or more.
  • the method in which indication information #1 indicates resource set #A3 can be the same as the method in which resource set #A1 is indicated, or resource #A in resource set #A3 can be indicated in other ways.
  • indication information #1 indicates The time domain range (time domain starting position and time domain ending position, or time domain starting position and length) and/or frequency domain range of resource set #A3.
  • resource #A is a candidate resource for LTE-V transmission and the corresponding energy measurement value is less than or equal to threshold #B (another example of the first threshold), and resource #A belongs to resource set #A4 (another example of the second resource set), wherein resource set #A4 is a subset of resource set #1.
  • the set of remaining candidate resources after excluding candidate resources that overlap with resources occupied by LTE-V transmission and whose corresponding energy measurement values are greater than threshold #B in resource set #2 (an example of the second resource set).
  • resource set #2 is all candidate resources for LTE-V within the resource selection window.
  • Resource #A can be a resource in resource set #A4 or multiple resources in resource set #A1, and this application does not limit this.
  • resource set #A4 can be the SA after executing step 6 in the LTE-V resource selection or reselection process, that is, the set of remaining candidate resources after excluding candidate resources that overlap with resources occupied by LTE-V transmission and whose corresponding RSRP measurement values are greater than threshold #B.
  • resource set #A4 can be the SA after executing step 7 in the resource selection or reselection process of LTE-V, that is, after excluding candidate resources that overlap with resources occupied by LTE-V transmission and whose corresponding energy measurement values are greater than threshold #B, and the number of resources in SA is not less than 20% of the total number of candidate resources in the resource selection window (RSW).
  • RSW resource selection window
  • resource set #A4 can be the SB after executing step 9 during the resource selection or reselection process of LTE-V, that is, after excluding candidate resources that overlap with resources occupied by LTE-V transmission and whose corresponding RSRP measurement values are greater than threshold #B, the number of resources in SA is not less than 20% of the total number of candidate resources in RSW, and the remaining candidate resources with smaller RSSI measurement values are preferentially selected.
  • indication information #1 indicates resource #A in resource set #A4 is the same as the manner in which indication information #1 indicates the time-frequency position of resource #A in resource set #A3, and thus will not be repeated here.
  • terminal #A is (pre) configured with one of the above four resource sets (resource set #A1, resource set #A2, resource set #A3, resource set #4) or any subset of the four resource sets on the RP. It should be understood that terminal #A can also receive information from a network device on the resource pool, which indicates that terminal #A is configured as one of the above four resource sets or any subset of the four resource sets, and this application does not limit this.
  • terminal #A in order to determine whether the resources occupied by LTE-V transmission overlap with resource #B, terminal #A also needs to obtain resource #B of the feedback information corresponding to the NR-V data. Specifically, terminal #A can determine the resource #B corresponding to the feedback information by receiving resource #C (an example of the third resource) used by the NR-V data, that is, determine the resources used for the feedback information transmitted using NR according to the resources used for the data transmitted using NR, wherein resource #B is implicitly related to resource #C, which is not specifically described in the embodiments of the present application.
  • resource #C an example of the third resource
  • resource #B is a PRB in a PSFCH symbol.
  • a PSFCH symbol is the second to last symbol in a time slot.
  • Terminal #A uses resource #B to send NR-V feedback information, and the NR-V feedback information is carried on the PSFCH.
  • terminal #A is a device that receives data and sends feedback information.
  • terminal #A receives data in time slot 1 and feeds back PSFCH in time slot 2, where time slot 2 is the first time slot in the NR-V resource pool that includes PSFCH resources after N time intervals.
  • the NR-V resource pool can be understood as resource set #1, that is, a shared resource pool. It can also be understood that the NR-V resource pool includes resource set #1, that is, the NR-V resource pool includes shared resources for co-channel coexistence and resources dedicated to NR-V.
  • resource #B belongs to resource set #B1
  • resource set #B1 is a subset of resource set #1
  • resource set #B1 is the overlapping part of the NR-V resource pool and the LTE-V resource pool.
  • the NR-V resource pool may include different contents.
  • the NR-V resource pool includes NR-V-specific resources, that is, resources shared with LTE-V and resources dedicated to NR-V.
  • the NR-V resource pool only includes resources shared with LTE-V, that is, the available resource set of NR-V is also the available resource set of LTE-V, and this application is not limited here.
  • the data sent by NR-V transmission requires HARQ feedback, that is, the data sent using the NR wireless access system requires HARQ feedback.
  • terminal #A receives SCI, SCI schedules PSSCH, and PSSCH carries data information.
  • the HARQ enable field in the second-level SCI indicates HARQ enablement (that is, the HARQ enable/disable field indicates 1, 1 means HARQ enablement, and 0 means HARQ disablement).
  • the cast type field in the second-level SCI indicates whether the transmission type is unicast or multicast.
  • the subcarrier spacing of LTE-V is 15kHz
  • the subcarrier spacing of NR-V can be 15kHz, 30kHz, and 60kHz.
  • the subframe length of LTE-V is the same as the time slot length of NR-V.
  • the subframe length of LTE-V is different from the time slot length of NR-V.
  • the time domain unit of the resource information of the LTE-V module obtained by the NR-V module is based on the time domain unit of the NR-V module, and the time domain unit of the LTE-V resources obtained by the NR-V module is a subframe.
  • the NR-V module converts the subcarrier spacing of LTE-V and the time domain unit of LTE-V resources into the time domain unit of NR-V, and then the resource indication information of LTE-V can be used.
  • the time domain unit of the resource information of the LTE-V module obtained by the NR-V module can also be based on the time domain unit of the LTE-V module, and this application is not limited to this.
  • terminal #A determines whether the resources occupied by LTE-V transmission overlap with resources #B based on indication information #1.
  • terminal #A determines whether the resources occupied by LTE-V transmission overlap with resource #B according to indication information #1, and terminal #A determines whether the resources occupied by LTE-V transmission overlap with resource #B through resource #A of candidate resources for LTE-V transmission. Specifically, for resource #A of resource set #A3 or resource set #A4, terminal #A determines whether resource #A in resource set #A3 or resource set #A4 overlaps with resource #B, thereby determining whether the resources occupied by LTE-V transmission overlap with resource #B.
  • terminal #A determines whether resource #A and resource #B satisfy condition #A through resource set #A3 of candidate resources for LTE-V transmission and/or resource #A in resource set #A3, thereby determining whether the resources occupied by LTE-V transmission overlap with resource #B.
  • condition #A includes the following sub-conditions:
  • Sub-condition #a resource #B belongs to resource set #A3, and resource #B is not frequency-divided with resource #D (an example of the fourth resource), resource #D is the remaining candidate resource of resource #B excluding resource #A from at least one candidate resource included in time domain unit #1 (an example of the first time domain unit), and time domain unit #1 is the time domain unit where resource #B is located;
  • Sub-condition #b Resource #B belongs to resource set #A3, and the number of candidate resources included in time domain unit #1 is equal to the maximum number of candidate resources that can be included in a time domain unit;
  • Resource #B is not frequency-divided with resource #D;
  • Sub-condition #d The number of resource #D is 0;
  • Sub-condition #e The total number of candidate resources included in time domain unit #1 is equal to the maximum number of candidate resources that can be included in a time domain unit. That is, the number of candidate resources included in time domain unit #1 is equal to the maximum number of candidate resources included in time domain unit #1.
  • the above sub-conditions including:
  • Resource #B belongs to resource set #A3, which can be understood as resource #B and resource set #A3 overlap, or resource #B and resource set #A3 overlap in the time domain. Alternatively, it can be replaced by: resource #B belongs to resource #A in the time domain, or resource #B and resource #A overlap or overlap in the time domain. Resource #B is not frequency-divided with resource #D, which can be understood as resource #B and resource #D do not overlap in the time domain.
  • Time domain unit #1 is the time domain unit where resource #B is located. It can be understood that time domain unit #1 is a time domain unit overlapping with resource #B.
  • the maximum number of candidate resources included in time slot #1 is N-L+1, where N is a positive integer, N is the number of sub-channels included in the frequency domain resources of LTE-V transmission, and L is the number of sub-channels included in the frequency domain resources of the first resources.
  • the NR-V module of terminal #A obtains the frequency domain range of resource set #A3, that is, the frequency domain starting position and length.
  • the frequency domain length can be understood as the number of subchannels included in resource set #A3.
  • the NR-V module can determine the number of candidate single time slot resources included in a time slot based on the frequency domain range and frequency domain length. As shown in Figure 11, a time slot includes 4 subchannels, and resource set #A3 includes 2 subchannels. It is easy to understand that since the candidate resources should contain continuous subchannels, a time slot includes 3 resources #A, that is, a time slot includes 3 candidate resources.
  • Terminal #A determines whether resource #C overlaps with resource set #A3 through sub-condition #a or sub-condition #b. It should be understood that the frequency domain range can also be the frequency domain end position and length, or the frequency domain start position and end position, and this application is not limited here.
  • resource set #A3 is in subframe #1, and the total number of candidate resources included in subframe #1 is N. Assuming that the number of candidate resources included in resource set #A3 in subframe #1 is less than N, it means that subframe #1 includes resources occupied by LTE-V transmission, and resource #B that overlaps with the subframe in the time domain cannot be used.
  • terminal #A determines (confirms) that resource #A and resource #B satisfy at least one sub-condition in condition #B, that is, at least one sub-condition among sub-condition #a, sub-condition #b, sub-condition #c, sub-condition #d, and sub-condition #e
  • terminal #A determines (confirms) that the resources occupied by LTE-V transmission and resource #B do not overlap in the time domain.
  • terminal #A determines whether the resources occupied by LTE-V transmission overlap with resource #B based on whether resource #A and resource #B meet condition #B.
  • condition #B includes the following sub-conditions:
  • Sub-condition #a Resource #B does not belong to resource set #A3;
  • Resource #B and resource #D are frequency-separated, that is, resource #B and resource #D overlap in the time domain;
  • Sub-condition #c the number of candidate resources included in time domain unit #1 is less than the maximum number of candidate resources that can be included in a time domain unit;
  • Sub-condition #d the number of resource #D is greater than 0;
  • the maximum number of candidate resources included in the time domain unit #1 is N-L+1, where N is a positive integer, N is the number of sub-channels included in the frequency domain resources of the LTE-V transmission, and L is the number of sub-channels included in the frequency domain resources of the first resources.
  • terminal #A determines that resource #A and resource #B satisfy at least one sub-condition in condition #B, that is, at least one sub-condition among sub-condition #a’, sub-condition #b’, sub-condition #c’, and sub-condition #d’
  • terminal #A determines that the resources occupied by LTE-V transmission overlap with resource #B.
  • resource set #A4 or resource #A in resource set #A4 the way in which terminal #A determines whether the resources occupied by LTE-V transmission overlap with resource #B is the same as that for resource set #A3, and will not be repeated here.
  • terminal #A determines resource #A according to indication information #1, and further determines whether the resources occupied by LTE-V transmission overlap with resource #B. Specifically, for resource #A in resource set #A3 or resource set #A4, terminal #A determines whether the resources occupied by LTE-V transmission overlap with resource #B according to resource #A in resource set #A1 or resource set #A2.
  • resource #A is the resource occupied by LTE-V transmission, that is, resource #A is resource #A in resource set #A1, or resource #A in resource set #A2.
  • Terminal #A determines whether the resources occupied by LTE-V transmission do not overlap with resource #B based on whether resource #A and resource #B meet condition #C.
  • condition #C is that resource #B and resource #A are time-division multiplexed, that is, resource #B and resource #A do not overlap in the time domain.
  • terminal #A determines that resource #B and the resources occupied by LTE-V transmission do not overlap.
  • terminal #A obtains resource set #A1, and resource #B does not overlap with any resource in resource set #A1 in the time domain, that is, resource #B does not overlap with the resources occupied by LTE-V transmission in the time domain.
  • terminal #A obtains resource set #A2, and resource #B does not overlap with any resource in resource set #A2 in the time domain, that is, resource #B does not overlap with the resources occupied by LTE-V transmission in the time domain.
  • resource #A is the resource occupied by LTE-V transmission, that is, resource #A in resource set #A1 or resource set #A2.
  • Terminal #A determines whether resource #A and resource #B meet condition #D, thereby determining whether resource #A overlaps with resource #B.
  • condition #D is that resource #B and resource #A are frequency division multiplexed, that is, resource #B and resource #A overlap in the time domain.
  • terminal #A determines that resource #A and resource #B satisfy condition #D
  • terminal #A determines that the resources occupied by LTE-V transmission and resource #B overlap in the time domain.
  • terminal #A obtains resource set #A1, and resource #B overlaps with at least one resource in resource set #A1 in the time domain, that is, resource #B overlaps with the resources occupied by LTE-V transmission in the time domain.
  • terminal #A obtains resource set #A2, and resource #B overlaps with at least one resource in resource set #A2 in the time domain, then resource #B overlaps with the resources occupied by LTE-V transmission in the time domain.
  • resource #A in resource set #A2 the way in which terminal #A determines whether the resources occupied by LTE-V transmission overlap with resource #B is the same as that for resource set #A1, and will not be repeated here.
  • terminal #A sends or does not send the PSFCH corresponding to the NR-V data on resource #B.
  • the PSFCH corresponding to the sent NR-V data is feedback information corresponding to the sent NR-V data, and the feedback information is carried in the PSFCH.
  • the PSFCH corresponding to the NR-V data is the PSFCH transmitted using the NR wireless access system, or the PSFCH transmitted using the NR-V wireless access system, or it may be the PSFCH corresponding to NR-V.
  • terminal #A determines whether to send the PSFCH corresponding to the NR-V data based on the result in S120.
  • terminal #A when resource #A and resource #B meet condition #A, that is, when the resources occupied by LTE-V transmission do not overlap with resource #B, terminal #A sends the PSFCH corresponding to NR-V data.
  • terminal #A when resource #A and resource #B meet condition #B, that is, when the resources occupied by LTE-V transmission overlap with resource #B, terminal #A does not send the PSFCH corresponding to the NR-V data.
  • not sending PSFCH can be understood as stopping sending PSFCH. Deactivate PSFCH and discard PSFCH.
  • terminal #A determines whether to send the PSFCH corresponding to the NR-V data based on the result in S120.
  • terminal #A when resource #A and resource #B meet condition #C, that is, when the resources occupied by LTE-V transmission do not overlap with resource #B, terminal #A sends the PSFCH corresponding to NR-V data.
  • terminal #A when resource #A and resource #B satisfy condition #D, that is, when the resources occupied by LTE-V transmission overlap with resource #B, terminal #A does not send the PSFCH corresponding to NR-V data.
  • the time domain range of resource #A indicated by indication information #1 does not include the time domain position of resource #B. It is easy to understand that terminal #A cannot determine whether resource #A overlaps with resource #B, and thus terminal #A cannot determine whether the resources occupied by LTE-V transmission overlap with resource #B.
  • terminal #A does not send the PSFCH corresponding to the NR-V data.
  • the impact of the NR-V PSFCH on the performance of LTE-V transmission can be avoided.
  • terminal #A sends the PSFCH corresponding to the NR-V data.
  • the NR-V transmission can obtain the performance brought by the PSFCH.
  • terminal #A obtains configuration information or pre-configuration information of the base station to indicate whether terminal #A sends the PSFCH corresponding to the NR-V data.
  • terminal #A executes all steps of method 100 on the MAC layer, or terminal #A executes all steps of method 100 on the PHY layer, and the embodiments of the present application are not limited to this.
  • the PSFCH corresponding to NR-V data is not sent.
  • the threshold is preset or configured. It can be pre-configured or configured by the network device.
  • terminal #A determines that resource #B overlaps with resources occupied by LTE-V transmission, and the priority value corresponding to LTE-V transmission is higher than a threshold, the PSFCH corresponding to the NR-V data is sent.
  • terminal #A does not send the PSFCH corresponding to the NR-V data
  • the corresponding receiving terminal does not receive the PSFCH corresponding to the NR-V data.
  • the receiving terminal determines that the PSFCH resources and the resources occupied by LTE-V transmission overlap and the total number of PSFCHs corresponding to the NR-V data that are not received is greater than a threshold. Then the receiving terminal does not retransmit the NR-V data. Specifically, the initial value of the counter is 0. When the receiving terminal determines that the PSFCH resources and the resources occupied by LTE-V transmission overlap and the PSFCH is not received, the counter count value is increased by 1. When the counter count value is greater than a threshold, the receiving terminal does not retransmit the NR-V data.
  • the receiving terminal determines that the PSFCH resources and the resources occupied by the LTE-V transmission overlap and the number of PSFCHs corresponding to the NR-V data that have not been received continuously is greater than a threshold, and the receiving terminal does not retransmit the NR-V data.
  • the initial value of the counter count is 0.
  • the counter count value is increased by 1.
  • the receiving terminal does not retransmit the NR-V data.
  • the counter count is continuous.
  • the counter count value is reset to 0.
  • Fig. 13 shows a method 200 for information transmission provided in an embodiment of the present application.
  • the method 200 may include the following steps.
  • terminal #B obtains indication information #1 (an example of the first indication information), where indication information #1 is used to indicate resource #A (an example of the first resource), resource #A is a resource occupied by LTE-V transmission, or resource #A is a candidate resource for LTE-V transmission, and resource #A belongs to resource set #1 (an example of the first resource set)
  • terminal #B is a device that sends data and receives feedback information, and terminal #B has determined resource #C for sending data.
  • the method in which indication information #1 indicates the time-frequency position of resource #A, terminal #B determines resource #A according to indication information #1, and the method in which the terminal determines the time-frequency position of resource #B according to resource #C can refer to the corresponding process in the previous method embodiment, which will not be repeated here.
  • terminal #B determines whether the resources occupied by LTE-V transmission overlap with resources #B based on indication information #1.
  • Terminal #B determines whether resource #A and resource #B meet the conditions based on indication information #1, and thus determines whether the resources occupied by LTE-V transmission overlap with resource #B.
  • the method can refer to the corresponding process in the previous method embodiment and will not be repeated here.
  • terminal #B enables or disables HARQ feedback in the second-level SCI.
  • terminal #B determines whether to indicate enabling HARQ feedback in the second-level SCI based on the result in S220, where the HARQ is feedback information carried on resource #B.
  • terminal #B sends data #1 and indication information #2, wherein data #1 is associated with resource #B, that is, terminal #B receives HARQ information of data #1 in resource #B.
  • Indication information #2 is carried in the second-level SCI.
  • terminal #B when resource #A and resource #B meet condition #A, that is, when the resources occupied by LTE-V transmission do not overlap with resource #B, terminal #B sends indication information #2 (an example of the second indication information), and indication information #2 is carried in the second-level SCI to indicate enabling HARQ feedback. That is, terminal #B determines that data #1 requires HARQ feedback, and then sends indication information #2 to indicate enabling HARQ feedback of data #1.
  • indication information #2 an example of the second indication information
  • the field for enabling/disabling HARQ feedback is 1 bit, wherein a value of "1" indicates enabling HARQ feedback, and a value of "0" indicates disabling HARQ feedback.
  • Indication information #2 indicates enabling HARQ feedback, i.e., the value of the "field for enabling/disabling HARQ feedback" in the second-level SCI is set to 1.
  • terminal #B determines whether to enable or disable HARQ feedback based on whether data #1 requires HARQ feedback. In this way, it has been determined that PSFCH transmission does not affect LTE-V transmission, so PSFCH transmission can be performed according to NR-V requirements, and there is no need to change the original terminal implementation method due to LTE-V transmission.
  • terminal #B when resource #A and resource #B meet condition #B, that is, when the resources occupied by LTE-V transmission overlap with resource #B, terminal #B sends indication information #3 (an example of the third indication information), and indication information #3 is carried in the second-level SCI to indicate the disabling of HARQ feedback. That is, terminal #B sends indication information #2 to indicate the disabling of HARQ feedback of data #1.
  • terminal #A does not need to feedback HARQ information after receiving data #1, and does not need to judge whether PSFCH transmission affects LTE-V transmission, which saves power consumption of terminal #A.
  • terminal #B prevents terminal #B from being affected by PSFCH transmission when receiving LTE-V transmission, for example, the adjustment of LTE-V power corresponding to PSFCH AGC symbol exceeds the upper limit.
  • terminal #B determines whether to indicate enabling HARQ feedback in the second-level SCI according to the determination result in S220, and the HARQ is feedback information carried on resource #B.
  • terminal #B when resource #A and resource #B meet condition #C, that is, the resources occupied by LTE-V transmission do not overlap with resource #B, terminal #B sends indication information #2 (an example of the second indication information), and indication information #2 is carried in the second-level SCI to indicate enabling of HARQ feedback.
  • indication information #2 an example of the second indication information
  • terminal #B when resource #A and resource #B meet condition #D, that is, when the resources occupied by LTE-V transmission overlap with resource #B, terminal #B sends indication information #3 (an example of the third indication information), and indication information #3 is carried in the second-level SCI and is used to indicate that HARQ feedback is disabled.
  • indication information #3 an example of the third indication information
  • the data itself does not require HARQ enabling, and terminal #B indicates to disable HARQ feedback.
  • the HARQ enabling field included in the second-level SCI indicates "disable HARQ feedback".
  • terminal #B executes all steps of method 200 on the MAC layer, or terminal #B executes all steps of method 200 on the PHY layer, and the embodiments of the present application are not limited to this.
  • Fig. 14 shows a method 300 for information transmission provided in an embodiment of the present application.
  • the method 300 may include the following steps.
  • terminal #C obtains indication information #1 (an example of the first indication information), where indication information #1 is used to indicate resource #A (an example of the first resource), and resource #A belongs to resource set #1 (an example of the first resource set).
  • terminal #C is a device that sends data and receives feedback information, and terminal #C has not yet determined resource #D (another example of a third resource) for sending data.
  • Resource #D is implicitly related to resource #B, and the embodiment of the present application will not be described in detail here.
  • the method in which indication information #1 indicates the time-frequency position of resource #A, the method in which terminal #B determines the time-frequency position of resource #A based on indication information #1, and the method in which terminal #C determines resource #B based on resource #D can refer to the corresponding process in the previous method embodiment and will not be repeated here.
  • terminal #C determines whether the resources occupied by LTE-V transmission overlap with resources #B based on indication information #1.
  • the method for determining whether the resource #A and the resource #B meet the conditions according to the indication information #1, thereby determining whether the resource occupied by the LTE-V transmission overlaps with the resource #B, can refer to the corresponding process in the previous method embodiment, which will not be repeated here.
  • the terminal #C uses Send NR-V data with or without using resource #D.
  • terminal #C determines whether to use or not to use resource #D to send NR-V data according to the result in S320. That is, terminal #C performs resource selection according to the result in S320.
  • terminal #C uses or gives priority to resource #D to send NR-V data.
  • terminal #C only selects resources whose associated resource #B meets condition #A, and determines a candidate resource set, any candidate resource in the candidate resource set can be resource #D (that is, the candidate resource selected in the candidate resource combination is resource #D).
  • the MAC layer receives the candidate resource set, it selects the candidate resource whose associated resource #B meets condition #A for sending NR-V data.
  • terminal #C when resource #A and resource #B meet condition #B, that is, when the resources occupied by LTE-V transmission overlap with resource #B, terminal #C does not use resource #D to send NR-V data, or reduces the priority of using resource #D to send NR-V data. Specifically, during the resource selection process, terminal #C does not select the resource associated with resource #B that meets condition #B, so that resource #D is not included in the determined candidate resource set.
  • the candidate resource associated with resource #B that meets condition #B is not selected for sending NR-V data; or, the candidate resource associated with resource #B that does not meet condition #B is first selected for sending NR-V data, and the candidate resource associated with resource #B that does not meet condition #B is no longer available, and then the associated resource #B or the candidate resource that meets condition #B is selected for sending NR-V data.
  • terminal #C determines whether to use or not to use resource #D to send NR-V data according to the result in S320. That is, terminal #C performs resource selection according to the result in S320. That is, terminal #C performs resource selection according to the result in S320.
  • terminal #C uses or gives priority to resource #D to send NR-V data.
  • terminal #C only selects resources whose associated resource #B meets condition #C, and determines a candidate resource set, any candidate resource in the candidate resource set can be resource #D (that is, the candidate resource selected in the candidate resource combination is resource #D).
  • the MAC layer receives the candidate resource set, it selects the candidate resource whose associated resource #B meets condition #C for sending NR-V data.
  • terminal #C when resource #A and resource #B meet condition #D, that is, when the resources occupied by LTE-V transmission overlap with resource #B, terminal #C does not use resource #D to send NR-V data, or reduces the priority of using resource #D to send NR-V data. Specifically, during the resource selection process, terminal #C does not select the resource associated with resource #B that meets condition #D, so that resource #D is not included in the determined candidate resource set.
  • the candidate resource associated with resource #B that meets condition #D is not selected for sending NR-V data; or, the candidate resource associated with resource #B that does not meet condition #D is first selected for sending NR-V data, and the candidate resource associated with resource #B that does not meet condition #D is no longer available, and then the associated resource #B or the candidate resource that meets condition #B is selected for sending NR-V data.
  • the step of using or giving priority to resource #D to send NR-V data can be performed by terminal #C at different stages. For example, this step is performed during the process of resource selection. At this stage, using resource #D should be understood as selecting resource #D, and giving priority to using resource #D should be understood as giving priority to selecting resource #D.
  • terminal #C only selects candidate resources whose corresponding resource #B does not overlap with the resources occupied by LTE-V transmission in the time domain.
  • This step is performed at the PHY layer (the corresponding S310 and S320 are both performed at the PHY layer).
  • the PHY layer reports the set of candidate resources to the MAC layer.
  • the MAC layer selects one of the resources in the set of candidate resources for use.
  • One of the resources can be understood as resource #D.
  • terminal #C determines that the candidate resource set includes a subset of candidate resources whose corresponding resource #B does not overlap with the resources occupied by LTE-V transmission in the time domain, and a subset of candidate resources whose corresponding resource #B overlaps with the resources occupied by LTE-V transmission in the time domain.
  • This step is performed at the PHY layer (the corresponding S310 and S320 are both performed at the PHY layer).
  • the PHY layer reports the set of candidate resources to the MAC layer.
  • the MAC layer selects to use one of the resources from the subset of candidate resources whose corresponding resource #B does not overlap with the resources occupied by LTE-V transmission in the time domain.
  • One of the resources can be understood as resource #D.
  • the MAC layer when selecting resources, gives priority to selecting candidate resources whose corresponding resource #B does not overlap with the resources occupied by LTE-V transmission in the time domain. This step is performed at the PHY layer (the corresponding S320 is performed at the MAC layer).
  • the MAC layer gives priority to selecting candidate resources whose corresponding resource #B does not overlap with the resources occupied by LTE-V transmission in the time domain for data that needs to enable HARQ. This step is performed at the PHY layer (then The corresponding S320 is executed at the MAC layer.) For HARQ disabled data, there is no need for any restriction in the resource selection process.
  • this step is performed after the resource selection is completed.
  • using resource #D should be understood as using resource #D
  • prioritizing the use of resource #D should be understood as prioritizing the use of resource #D. This application does not limit this.
  • terminal #C determines, based on indication information #1, that the resources occupied by LTE-V transmission and resource #D do not overlap and that the resources occupied by LTE-V transmission and resource #B do not overlap, then terminal #C uses or prioritizes the use of resource #D to send NR-V data.
  • terminal #C determines, based on indication information #1, that the resources occupied by LTE-V transmission overlap with resource #D and that the resources occupied by LTE-V transmission overlap with resource #B, then terminal #C does not use or reduces the priority of using resource #D to send NR-V data.
  • terminal #C uses resource #D to send NR-V data
  • resource #D also satisfies the method described in S320, that is, resource #D and the resources occupied by LTE-V transmission do not overlap in the time domain.
  • the resources used to send NR-V data and the resources used to send feedback information for NR-V data do not affect the transmission of LTE-V.
  • the method for determining whether the resources occupied by resource #B and LTE-V transmission overlap is also applicable to resource #D.
  • FIG15 shows a schematic block diagram of a sidelink communication device 1000 provided in an embodiment of the present application.
  • the communication device 1000 includes a processing module 1001 and a communication module 1002.
  • the communication device 1000 may be a terminal device, or may be a communication device applied to a terminal device or used in conjunction with a terminal device and capable of implementing a method executed by the terminal device, such as a chip, a chip system, or a circuit.
  • the communication module may also be referred to as a transceiver module, a transceiver, a transceiver, or a transceiver device, etc.
  • the processing module may also be referred to as a processor, a processing board, a processing unit, or a processing device, etc.
  • the communication module is used to perform the sending operation and the receiving operation of the terminal device in the above method, and the device used to implement the receiving function in the communication module may be regarded as a receiving unit, and the device used to implement the sending function in the communication module may be regarded as a sending unit, that is, the communication module includes a receiving unit and a sending unit.
  • each functional module in each example of the present application may be integrated into a processor, or may exist physically separately, or two or more modules may be integrated into one module.
  • the above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.
  • the processing module 1001 may be used to implement the processing function of the terminal device in each embodiment described in FIG. 7 to FIG. 14
  • the communication module 1002 may be used to implement the transceiver function of the terminal device in each embodiment described in FIG. 7 to FIG. 14 .
  • the communication module 1002 is used to obtain first indication information, where the first indication information is used to indicate a first resource, where the first resource is a resource occupied by LTE-V transmission, or where the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set.
  • the processing module 1001 is used to determine a second resource according to a third resource, where the third resource is a candidate resource for sending NR-V data, the second resource is a resource for carrying feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; and, according to the first indication information, determine that the resources occupied by LTE-V transmission and the second resources do not overlap;
  • the communication module 1002 is also used to send the NR-V data on the third resource, or to send second indication information, wherein the second indication information is used to indicate enabling of a hybrid automatic repeat request HARQ corresponding to the NR-V data, and the HARQ is feedback information carried on the second resource.
  • the communication module 1002 is used to obtain first indication information, where the first indication information is used to indicate a first resource, where the first resource is a resource occupied by LTE-V transmission, or where the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set.
  • the processing module 1001 is used to determine a second resource based on a third resource, where the third resource is a candidate resource for sending NR-V data, the second resource is a resource for carrying feedback information corresponding to the NR-V data, the second resource belongs to the first resource set, and, based on the first indication information, determine that the resources occupied by LTE-V transmission and the second resources do not overlap.
  • the communication module 1002 is also used to send the NR-V data on the third resource, or to send second indication information, wherein the second indication information is used to indicate enabling of a hybrid automatic repeat request HARQ corresponding to the NR-V data, and the HARQ is feedback information carried on the second resource.
  • the communication module 1002 is used to obtain first indication information, where the first indication information is used to indicate a first resource, where the first resource is a resource occupied by LTE-V transmission, or where the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set.
  • the processing module 1001 is used to determine, according to the first indication information, that the resources occupied by the LTE-V transmission overlap with the second resources, the second resources are used to carry feedback information corresponding to the NR-V data, and the second resources belong to the first resource set.
  • the communication module 1002 is also used to not send feedback information corresponding to the NR-V data on the second resource.
  • the communication module 1002 is used to obtain first indication information, where the first indication information is used to indicate a first resource, where the first resource is a resource occupied by LTE-V transmission, or where the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set.
  • the processing module 1001 is used to determine a second resource based on a third resource, where the third resource is a candidate resource for sending NR-V data, the second resource is a resource for carrying feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; and, based on the first indication information, determine that the resources occupied by LTE-V transmission overlap with the second resources.
  • the communication module 1002 is also used to send the NR-V data without using the third resource, or to send third indication information, wherein the third indication information is used to indicate disabling of the hybrid automatic repeat request HARQ corresponding to the NR-V data, and the HARQ is feedback information carried on the second resource.
  • the present application also provides a sidelink communication device 1100.
  • the communication device 1100 may be a chip or a chip system.
  • the chip system may be composed of a chip, or may include a chip and other discrete devices.
  • the communication device 1100 may include at least one processor 1110.
  • the processor 1110 is coupled to a memory, and the memory may be located within the device, or the memory may be integrated with the processor, or the memory may be located outside the device.
  • the communication device 1100 may also include at least one memory 1120.
  • the memory 1120 stores necessary computer programs, computer programs or instructions and/or data for implementing any of the above examples; the processor 1110 may execute the computer program stored in the memory 1120 to complete the method in any of the above examples.
  • the communication device 1100 may also include a communication interface 1130, and the communication device 1100 may exchange information with other devices through the communication interface 1130.
  • the communication interface 1130 may be a transceiver, circuit, bus, module, pin or other type of communication interface.
  • the communication interface 1130 in the device 1100 may also be an input-output circuit that can input information (or receive information) and output information (or send information);
  • the processor is an integrated processor, microprocessor, integrated circuit or logic circuit, and the processor can determine output information based on input information.
  • the coupling in this application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 1110 may cooperate with the memory 1120 and the communication interface 1130.
  • the specific connection medium between the above-mentioned processor 1110, memory 1120 and communication interface 1130 is not limited in this application.
  • the processor 1110, the memory 1120, and the communication interface 1130 are interconnected via a bus 1140.
  • the type of the bus 1140 is not limited.
  • the bus 1140 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus.
  • the bus may be divided into an address bus, a data bus, a control bus, and the like.
  • FIG16 only uses one bus, but does not mean that there is only one bus or one type of bus.
  • the memory and the processor in the above-mentioned device embodiments may be physically independent units, or the memory may be integrated with the processor, which is not limited in this document.
  • the communication device 1100 may be applied to a terminal device.
  • the communication device 1100 may be a terminal device, or may be a device that can support the terminal device to implement the corresponding functions of the terminal device in any of the above-mentioned examples.
  • the memory 1120 stores a computer program (or instruction) and/or data that implements the functions of the terminal device in any of the above-mentioned examples.
  • the processor 1110 may execute the computer program stored in the memory 1120 to complete the method executed by the terminal device in any of the above-mentioned examples.
  • the communication interface in the communication device 1100 may be used to interact with a network device or another terminal device.
  • the present application also provides a computer-readable storage medium, in which computer instructions are stored.
  • computer instructions are stored.
  • the steps (such as operations and/or processing) in the method embodiments of the present application are executed.
  • the present application also provides a computer program product, which includes computer program code or instructions.
  • a computer program product which includes computer program code or instructions.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic block diagrams disclosed in this application.
  • a general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the disclosed method may be directly implemented as being executed by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor.
  • the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), such as a random-access memory (RAM).
  • the memory is any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
  • the memory in the present application may also be a circuit or any other device that can realize a storage function, used to store program instructions and/or data.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art.
  • the computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

Landscapes

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

Abstract

La présente demande concerne un procédé et un appareil de communication de liaison latérale, qui peuvent être appliqués à des scénarios tels que V2X, l'Internet des véhicules, la conduite assistée, la conduite autonome, etc. Le procédé de communication de liaison latérale consiste à : acquérir de premières informations d'indication pour indiquer une première ressource, la première ressource étant une ressource occupée par une transmission LTE-V, ou la première ressource étant une ressource candidate pour une transmission LTE-V ; et selon les premières informations d'indication, déterminer si la ressource occupée par la transmission LTE-V chevauche une seconde ressource, la seconde ressource étant utilisée pour transporter des informations de retour correspondant à des données NR-V, de sorte que l'envoi des informations de retour correspondant aux données NR-V sur la seconde ressource soit commandé. Ainsi, il est possible de s'assurer que NR-V et LTE-V peuvent réaliser une coexistence dynamique d'une transmission de co-canal sans affecter les performances de LTE-V.
PCT/CN2023/117775 2022-09-30 2023-09-08 Procédé et appareil de communication de liaison latérale WO2024067025A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211214342.4 2022-09-30
CN202211214342.4A CN117812598A (zh) 2022-09-30 2022-09-30 侧行链路通信方法和装置

Publications (1)

Publication Number Publication Date
WO2024067025A1 true WO2024067025A1 (fr) 2024-04-04

Family

ID=90420686

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/117775 WO2024067025A1 (fr) 2022-09-30 2023-09-08 Procédé et appareil de communication de liaison latérale

Country Status (2)

Country Link
CN (1) CN117812598A (fr)
WO (1) WO2024067025A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111865505A (zh) * 2019-04-30 2020-10-30 ***通信有限公司研究院 一种资源选择方法及设备
US20220109546A1 (en) * 2019-01-11 2022-04-07 Apple Inc. Sidelink physical layer procedures for collision avoidance, harq feedback, and csi acquisition
WO2022171132A1 (fr) * 2021-02-10 2022-08-18 维沃移动通信有限公司 Procédé et appareil d'indication de conflit, et dispositif électronique
CN114928825A (zh) * 2022-04-29 2022-08-19 中国信息通信研究院 一种车联网harq信息反馈方法和设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220109546A1 (en) * 2019-01-11 2022-04-07 Apple Inc. Sidelink physical layer procedures for collision avoidance, harq feedback, and csi acquisition
CN111865505A (zh) * 2019-04-30 2020-10-30 ***通信有限公司研究院 一种资源选择方法及设备
WO2022171132A1 (fr) * 2021-02-10 2022-08-18 维沃移动通信有限公司 Procédé et appareil d'indication de conflit, et dispositif électronique
CN114928825A (zh) * 2022-04-29 2022-08-19 中国信息通信研究院 一种车联网harq信息反馈方法和设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS: "Discussion on inter-UE coordination for Mode 2 enhancements", 3GPP DRAFT; R1-2105205, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210519 - 20210527, 12 May 2021 (2021-05-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052011283 *

Also Published As

Publication number Publication date
CN117812598A (zh) 2024-04-02

Similar Documents

Publication Publication Date Title
US11444729B2 (en) Transmitting feedback for data transmission through a sidelink
US20220190983A1 (en) Method for data transmission and terminal device
KR102522568B1 (ko) 무선 통신 시스템에서 채널 점유 시간 지시 방법 및 장치
CN109155700B (zh) 共享rf谱带中的harq反馈
CN107210867B (zh) PCELL上对eCC的控制信息反馈
KR20230054818A (ko) 무선 통신 시스템에서 채널 접속 방법 및 장치
KR102615826B1 (ko) 커버리지 강화 하에서 ｕｅ들을 위한 리소스 관리
KR102359010B1 (ko) 경쟁 윈도 크기 결정 방법 및 장치
CN114041303B (zh) 反馈信息传输的方法和装置
WO2020199856A1 (fr) Procédé de transmission d'informations et appareil de communication
KR20200035791A (ko) 무선 통신 시스템에서 라디오 링크 모니터링 방법 및 장치
US20220052815A1 (en) Transmission Mode Determining Method and Apparatus
AU2018417481A1 (en) Data transmission method, terminal device and network device
EP4024914A1 (fr) Procédés d'envoi et de réception d'informations de commande de liaison latérale, appareil terminal et système
WO2021017792A1 (fr) Procédé de transmission d'informations de retour et dispositif terminal
KR102512147B1 (ko) 경쟁 윈도우의 결정 방법 및 디바이스
KR20200034559A (ko) 무선 통신 시스템에서 제어 정보 송수신 방법 및 장치
CN111416687A (zh) 一种被用于信道感知的通信设备中的方法和装置
WO2021032003A1 (fr) Procédé de transmission d'informations de commande de liaison montante et appareil de communication
WO2021032012A1 (fr) Procédé pour déterminer une ressource d'accusé de réception de demande de répétition automatique hybride (harq-ack)
WO2024067025A1 (fr) Procédé et appareil de communication de liaison latérale
WO2022077877A1 (fr) Procédé de transmission de liaison latérale et appareil de communication
WO2022141593A1 (fr) Procédé et appareil de communication
WO2020199769A1 (fr) Procédé et appareil de transmission d'informations de commande
CN116889013A (zh) 边链路资源的重选方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23870264

Country of ref document: EP

Kind code of ref document: A1