WO2024093895A1 - Procédé et appareil de transmission, et terminal et support d'enregistrement lisible - Google Patents

Procédé et appareil de transmission, et terminal et support d'enregistrement lisible Download PDF

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Publication number
WO2024093895A1
WO2024093895A1 PCT/CN2023/127653 CN2023127653W WO2024093895A1 WO 2024093895 A1 WO2024093895 A1 WO 2024093895A1 CN 2023127653 W CN2023127653 W CN 2023127653W WO 2024093895 A1 WO2024093895 A1 WO 2024093895A1
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WO
WIPO (PCT)
Prior art keywords
resource
psfch
resource set
target object
sets
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PCT/CN2023/127653
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English (en)
Chinese (zh)
Inventor
李萍
杨聿铭
纪子超
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维沃移动通信有限公司
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Publication of WO2024093895A1 publication Critical patent/WO2024093895A1/fr

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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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present application belongs to the field of communication technology, and specifically relates to a transmission method, device, terminal and readable storage medium.
  • SL sidelink
  • UE user equipment
  • NR New Radio
  • PSSCH physical sidelink shared channel
  • PSCCH physical sidelink control channel
  • the embodiments of the present application provide a transmission method, an apparatus, a terminal, and a readable storage medium, which can solve the problem of poor reliability of side-link communication.
  • a transmission method comprising:
  • the first terminal transmits a first physical sidelink feedback channel (PSFCH) according to the first information, wherein the first PSFCH carries feedback information of the first target object;
  • the first information includes at least one of the following: an association relationship between the first target object and the PSFCH, a first transmission resource of the first target object, a PSFCH resource set, and a Listen Before Talk (LBT) result;
  • PSFCH physical sidelink feedback channel
  • the first target object includes a physical sidelink shared channel PSSCH and/or a physical sidelink control channel PSCCH.
  • a transmission method including:
  • the first terminal transmits synchronization information according to the third information
  • the third information includes at least one of the first configuration information, the LBT result and the first criterion; the first configuration information is used to configure or indicate the transmission method of the synchronization information, and the first criterion is used to indicate the condition that the synchronization information to be sent does not need to execute LBT.
  • a transmission device comprising:
  • the first transmission module is configured to transmit a first physical sidelink feedback channel PSFCH according to the first information.
  • the PSFCH carries feedback information of the first target object; the first information includes at least one of the following: an association relationship between the first target object and the PSFCH, a first transmission resource of the first target object, a PSFCH resource set, and a listen-before-talk LBT result;
  • the first target object includes a physical sidelink shared channel PSSCH and/or a physical sidelink control channel PSCCH.
  • a transmission device comprising:
  • a second transmission module used for transmitting synchronization information according to third information
  • the third information includes at least one of the first configuration information, the LBT result and the first criterion; the first configuration information is used to configure or indicate the transmission method of the synchronization information, and the first criterion is used to indicate the condition that the synchronization information to be sent does not need to execute LBT.
  • a terminal comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.
  • a terminal comprising a processor and a communication interface, wherein the communication interface is used to transmit a first physical sidelink feedback channel PSFCH according to first information, wherein the first PSFCH carries feedback information of a first target object; the first information comprises at least one of the following: an association relationship between the first target object and the PSFCH, a first transmission resource of the first target object, a PSFCH resource set, and a listen-before-talk LBT result; wherein the first target object comprises a physical sidelink shared channel PSSCH and/or a physical sidelink link control channel PSCCH;
  • the communication interface is used to transmit synchronization information based on third information; wherein the third information includes at least one of first configuration information, LBT result and first criterion; the first configuration information is used to configure or indicate the transmission method of the synchronization information, and the first criterion is used to indicate that the synchronization information to be sent does not need to execute the LBT condition.
  • a communication system comprising: a first terminal and a second terminal, wherein the first terminal can be used to execute the steps of the transmission method as described in the first aspect, or execute the steps of the transmission method as described in the second aspect.
  • a readable storage medium on which a program or instruction is stored.
  • the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.
  • a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.
  • a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.
  • the first terminal transmits the first PSFCH according to the first information, and the first PSFCH carries the feedback information of the first target object;
  • the first information includes at least one of the following: the association relationship between the first target object and the PSFCH, the first transmission resource of the first target object, the PSFCH resource set and the result of the listen-before-speak LBT;
  • the first target object includes a physical sidelink shared channel PSSCH and/or a physical sidelink control channel PSCCH. Since the first terminal and the second terminal transmit feedback information of the first target object, the transmitting end of the first target object can perform corresponding operations (such as retransmission) according to the transmission status of the first target object. Therefore, the embodiment of the present application can improve the reliability of the sidelink communication.
  • FIG1 is a schematic diagram of a network structure applicable to an embodiment of the present application.
  • FIG2 is a schematic diagram of a flow chart of a transmission method provided in an embodiment of the present application.
  • FIG3 is one of the mapping scene diagrams of RB set and PFSCH resource set in a transmission method provided in an embodiment of the present application;
  • FIG4 is a second diagram of a mapping scenario between an RB set and a PFSCH resource set in a transmission method provided in an embodiment of the present application;
  • FIG5 is a third diagram of a mapping scenario between an RB set and a PFSCH resource set in a transmission method provided in an embodiment of the present application;
  • FIG6 is a fourth diagram of a mapping scenario between an RB set and a PFSCH resource set in a transmission method provided in an embodiment of the present application;
  • FIG7 is a schematic diagram of a flow chart of another transmission method provided in an embodiment of the present application.
  • FIG8 is a structural diagram of a transmission device provided in an embodiment of the present application.
  • FIG9 is a structural diagram of another transmission device provided in an embodiment of the present application.
  • FIG10 is a structural diagram of a communication device provided in an embodiment of the present application.
  • FIG. 11 is a structural diagram of a terminal provided in an embodiment of the present application.
  • first, second, etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by “first” and “second” are generally of the same type, and the number of objects is not limited.
  • the first object can be one or more.
  • “and/or” in the specification and claims represents at least one of the connected objects, and the character “/" generally represents that the objects associated with each other are in an "or” relationship.
  • the present invention relates to a wireless communication system comprising: a wireless communication system including a wireless communication network, a wireless communication system with a wireless transmission rate of 400 MHz and a wireless transmission rate of 500 MHz.
  • a wireless communication system comprising: a wireless communication system including a wireless communication system with a wireless transmission rate of 400 MHz and a wireless transmission rate of 500 MHz.
  • the present invention relates to a wireless communication system including: ...
  • FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device , robots, wearable devices (Wearable Device), vehicle user equipment (VUE), pedestrian user equipment (PUE), smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), game consoles, personal computers (personal computers, PCs), teller machines or self-service machines and other terminal side devices, wearable devices include: smart watches, smart bracelets, smart headphones,
  • the network side device 12 may include access network equipment or core network equipment, wherein the access network equipment may also be called wireless access network equipment, wireless access network (Radio Access Network, RAN), wireless access network function or wireless access network unit.
  • the access network equipment may include base stations, wireless local area networks (WLAN) access points or wireless fidelity (WiFi) nodes, etc.
  • the base station may be called node B, evolved node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), home node B, home evolved node B, transmitting and receiving point (TRP) or other suitable terms in the field.
  • eNB evolved node B
  • BTS base transceiver station
  • BSS basic service set
  • ESS extended service set
  • home node B home evolved node B
  • TRP transmitting and receiving point
  • the base station is not limited to specific technical vocabulary. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.
  • V2X Vehicle to Everything
  • LTE Long Term Evolution
  • NR New Radio
  • PSSCH can be used to transmit data
  • control information associated with PSSCH can be carried in the sidelink control information (SCI) of PSCCH and PSSCH respectively.
  • SCI is divided into two levels, the first stage SCI is in PSCCH, and the second stage SCI is in PSSCH.
  • Type A is that the base station performs Type 1 DL channel access on each channel, and if the base station does not configure a guard band on this band, once the base station fails to access the channel on any channel, the base station cannot transmit on any of the channels.
  • the configuration of the guard band consists of the starting physical resource blocks (PRBs) and PRB size (size) indications of N-1 guard bands, where N is the number of resource block (RB) sets (i.e., RB sets), so the number of guard bands on the band is N-1.
  • TypeB means that the base station selects a primary channel in the broadband channel for Type1 access, while other secondary channels can only make a Type2 DL channel access.
  • the bandwidth of the embodiment of the present application may be defined relative to the channel access unit on the unlicensed frequency band.
  • the current channel access unit on the unlicensed frequency band is a 20MHz channel, so when the terminal selects multiple channels for channel access and then transmits, that is, broadband access or broadband transmission, at this time, the broadband is not necessarily continuous in the frequency domain, that is, the broadband selected by the terminal may be composed of channels that are continuous in the frequency domain, or it may be composed of channels that are not continuous in the frequency domain.
  • the present application provides a transmission method.
  • the transmission method includes:
  • Step 201 The first terminal transmits a first physical sidelink feedback channel (PSFCH) according to first information, where the first PSFCH carries feedback information of a first target object; the first information includes at least one of the following: an association relationship between the first target object and the PSFCH, a first transmission resource of the first target object, a PSFCH resource set, and a Listen Before Talk (LBT) result;
  • PSFCH physical sidelink feedback channel
  • the first target object includes a physical sidelink shared channel PSSCH and/or a physical sidelink control channel PSCCH.
  • the first terminal can be understood as a sidelink terminal, and the first terminal can perform sidelink communication with the second terminal to transmit the PSFCH.
  • Transmission can be understood as sending or receiving, that is, the first terminal can send the first PSFCH to the second terminal according to the first information, and the first terminal can also receive the first PSFCH from the second terminal according to the first information.
  • the association relationship between the first target object and the PSFCH can be understood as the association relationship between the first target object and the PSFCH resource set.
  • the resource set for the second terminal to work has a first overlapping portion, and the PSFCH resource set can be a resource set on the first overlapping portion. In this way, when the first terminal and the second terminal work at different bandwidths, it can be ensured that the first terminal and the second terminal can perform Sidelink transmission normally, thereby improving the reliability of Sidelink transmission.
  • the first transmission resource of the first target object, the PSFCH resource set and the result of the listen-before-talk LBT can be used to determine the resource set A used to transmit the PSFCH, and then directly transmit the first PSFCH on the PSFCH resource set configured on the resource set A, or further determine the feedback resource specifically used to transmit the first PSFCH in the PSFCH resource set configured on the resource set A.
  • the feedback resource can be further determined based on the association between the first target object and the PSFCH, or based on at least one of the following methods: protocol agreement, network device configuration, first terminal pre-configuration, second terminal indication, and negotiation between the first terminal and the second terminal.
  • the resource set A can be a resource set on the first overlapping part. In this way, when the first terminal and the second terminal work at different bandwidths, it can be ensured that the first terminal and the second terminal can perform Sidelink transmission normally, thereby improving the reliability of Sidelink transmission.
  • bandwidth of the above work can also be understood as a supported bandwidth or a configured bandwidth.
  • the above-mentioned PSFCH resource set can be called a PSFCH resource set.
  • the first terminal transmits the first PSFCH according to the first information
  • the first PSFCH carries the feedback information of the first target object
  • the first information includes at least one of the following: the association relationship between the first target object and the PSFCH, the first transmission resource of the first target object, the PSFCH resource set and the result of the listen-before-talk LBT; wherein the first target object includes the physical sidelink shared channel PSSCH and/or the physical sidelink link control channel PSCCH. Since the first terminal and the second terminal transmit the feedback information of the first target object, the transmitter of the first target object can perform corresponding operations (such as retransmission) according to the transmission situation of the first target object. Therefore, the embodiment of the present application can improve the reliability of the sidelink communication.
  • the PSFCH resource set includes at least one of the following: at least one physical resource block, at least one interlace, at least one resource block set (RB set) and at least one guard band.
  • the resource block set can be understood as the resource block range (RB range).
  • the association relationship between the first target object and the PSFCH satisfies at least one of the following:
  • the association relationship between the first target object and the PSFCH includes at least one of the following: an association relationship between a resource unit of a resource set in each Q1 resource set and the first PSFCH resource set on the Q1 resource set, and an association relationship between a second unit time where the first target object is associated with a first time unit where the PSFCH is located and the first PSFCH resource set on the Q1 resource set;
  • the association relationship between the first target object and the PSFCH includes at least one of the following: an association relationship between resource units in all resource sets in the resource pool and the second PSFCH resource set, an association relationship between the first time unit where the PSFCH is located and the second PSFCH resource set; an association relationship between a second unit time where a target object is located and the second PSFCH resource set;
  • the association relationship between the first target object and the PSFCH includes a first association relationship
  • the first association relationship includes at least one of the following: an association relationship between a resource unit in the N second resource sets and the third PSFCH resource set configured on the N1 second resource sets, and an association relationship between a second time unit where the first target object is located and the first PSFCH resource set configured on the N1 second resource sets;
  • the association relationship between the first target object and the PSFCH includes a second association relationship
  • the second association relationship includes at least one of the following: an association relationship between a resource unit in each Q2 second resource set and a fourth PSFCH resource configured on the Q2 second resource sets, and an association relationship between a second time unit where the first target object is located and the fourth PSFCH resource set configured on the Q2 second resource sets associated with the first time unit where the PSFCH is located;
  • the association relationship between the first target object and the PSFCH includes at least one of the following: an association relationship between the resource units in all resource sets in the resource pool and the fifth PSFCH resource set configured on every Q3 second resource sets, and an association relationship between the second time unit where the first target object is located and the fifth PSFCH resource set configured on every Q3 third resource sets associated with the first time unit where the PSFCH is located;
  • the resource unit is a unit resource for transmitting the first target object
  • the first resource set and/or N1 second resource sets are determined according to at least one of protocol pre-definition, network side device pre-configuration, network side device configuration, negotiation between the first terminal and the second terminal, and second terminal indication
  • N and N1 are both positive integers
  • N is greater than or equal to N1
  • the N second resource sets satisfy at least one of the following: the N second resource sets are the overlapping parts of the first target resource set and the second target resource set, and the N second resource sets are resource sets pre-configured or configured by the network side device, wherein the first target resource set is a resource set that works, supports or is configured with the first terminal, and the second target resource set is a resource set that works, supports or is configured with the second terminal.
  • association relationship between a certain information and a PSFCH resource set can be understood or replaced by an association relationship between a certain information and a PSFCH resource contained in a PSFCH resource set.
  • association relationship between the resource unit of a resource set in each Q1 resource set and the first PSFCH resource set on the Q1 resource set can be understood or replaced by an association relationship between the resource unit of a resource set in each Q1 resource set and the PSFCH resource contained in the first PSFCH resource set on the Q1 resource set.
  • the above association relationship can be understood as a mapping relationship.
  • the first resource set and/or N1 second resource sets may be the lowest resource set in the overlapping part of the resource pool or the frequency domain resource set supported by the first terminal and the frequency domain resource set supported by the second terminal, or the highest resource set, or the starting resource set.
  • the lowest resource set may be the resource set with the lowest index (or minimum) or the lowest frequency domain position; similarly, the highest may be understood as the highest frequency domain position or the highest index (or maximum), and the starting may be understood as the starting frequency domain position or the starting index.
  • the resource set supported by the first terminal is different from the resource set supported by the second terminal.
  • the resource set supported by the first terminal may include all resource sets supported by the second terminal, or some resource sets in the resource set supported by the first terminal are the same as some resource sets in the resource set supported by the second terminal, and the remaining resource sets are different.
  • the N second resource sets may be understood as all resource sets supported by the second terminal.
  • the first time unit may include at least one symbol or time slot; the second time unit may include at least one symbol or time slot.
  • the resource set includes at least one of the following resource units: a resource block set, a resource block range, a subchannel, a bandwidth part (Bandwidth Part, BWP), a guard band and an interleaving.
  • the resource set may include at least one of the following: at least one resource block set, at least one resource block range, at least one subchannel, at least one BWP, at least one guard band and at least one interlace.
  • the PSFCH resource set includes at least one PSFCH resource
  • the PSFCH resource includes at least one of the following: at least one PRB, at least one interlace, at least one RB set, and at least one guard band.
  • the first PSFCH resource set (PSFCH resource set) is configured for Q1 resource sets, and the first target object on the current Q1 resource sets is mapped to the first PSFCH resource set in the current Q1 resource sets.
  • the first terminal and the second terminal can transmit PSFCH based on the resource set of the overlapping part to ensure that terminals in different frequency bands can communicate normally.
  • Q1 resource sets may include one or more resource sets, that is, the configured first PSFCH resource set may span one or more resource sets.
  • M1 PRBs may be configured on each RB set in the resource pool, and for T PSSCH time slots (PSSCH time slots may be understood as time slots where PSSCH is located) associated with K subchannels and/or a PSFCH opportunity in each RB set, subchannel i and/or slot j have an association relationship with m PRBs in M1 PRBs, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T.
  • M1 interlaces are configured on each RB set in the resource pool, and for each K subchannel and/or T PSSCHH slots associated with a PSFCH occasion in each RB set, subchannel i and/or slot j is associated with m interlaces in the M1 interlaces, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T.
  • a PSFCH resource set is configured for each RB set (per RB set), and the PSSCH in the current RB set is mapped to the PSFCH resource set in the current RB set.
  • the number of the above-mentioned first resource sets may be one or more, that is, the above-mentioned second PSFCH resource set may span one or more first resource sets.
  • the above-mentioned first resource set may be understood as a specific RB set in the resource pool.
  • M1 PRBs are configured on a specific RB set in the resource pool.
  • subchannel i and/or slot j are associated with m PRBs in the M1 PRBs, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T.
  • M1 interlaces are configured on a specific RB set in the resource pool.
  • subchannel i and/or slot j are associated with m PRBs in the M1 PRBs, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T.
  • M1 interlaces are configured on a specific RB set in the resource pool. Slot j is associated with m interlaces among M1 interlaces, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T.
  • a PSFCH resource set can be configured on this RB set, and the PSSCH of all RB sets on the wideband is mapped to the PSFCH resource set in this RB set, which can ensure that both the subband UE and the wideband UE can receive feedback.
  • M1 PRBs are configured on a specific RB set in a resource pool.
  • subchannel i and/or slot j in RB set p are associated with m PRBs among M1 PRBs, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T, 0 ⁇ p ⁇ L.
  • M1 interlaces are configured on a specific RB set in the resource pool.
  • subchannel i and/or slot j in RB set p is associated with m PRBs/interlaces in the M1 PRBs/interlaces, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T, and 0 ⁇ p ⁇ L.
  • a third PSFCH resource set is configured for N1 second resource sets, and the first target object on the second resource set is mapped to the third PSFCH resource set.
  • the first terminal and the second terminal can transmit PSFCH based on the overlapping resource sets to ensure that terminals in different frequency bands can communicate normally.
  • M1 PRBs are configured on a specific RB set in the first RB set in the resource pool, and for T PSCCH time slots associated with K subchannels and/or PSFCH occasions in the first RB set(s), subchannel i and/or slot j have an association relationship with m PRBs/interlaces in the M1 PRBs, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T.
  • M1 interlaces are configured on a specific RB set in the first RB set in the resource pool, and for T PSCCH time slots associated with K subchannels and/or PSFCH occasions in the first RB set(s), subchannel i and/or slot j has an association relationship with m interlaces among the M1 interlaces, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T.
  • a PSFCH resource set is configured on the subband where the subband UE works, all PSSCHs on the subband are mapped to this PSFCH resource set, so that the subband UE can receive feedback on the subband.
  • M1 PRBs are configured on a specific RB set in the first RBset in the resource pool, and for T PSCCH time slots associated with K subchannels and/or PSFCH occasions in L RB sets in the first RB set(s), subchannel i and/or slot j in RB set p are associated with m PRBs in M1 PRBes, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T, 0 ⁇ p ⁇ L.
  • M1 interlaces are configured on a specific RB set in the first RBset in the resource pool, and for T PSCCH time slots associated with K subchannels and/or PSFCH occasions in the first RB set(s), subchannel i and/or slot j in RB set p are associated with m interlaces in M1 interlaces, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T, 0 ⁇ p ⁇ L.
  • the Q2 second resource sets may include one or more second resource sets, that is, the configured first PSFCH resource set may span one or more second resource sets.
  • M1 PRBs are configured on each RB set in the first RB set(s) in the resource pool.
  • subchannel i and/or slot j are associated with m PRBs in M1 PRBs, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T.
  • M1 interlaces are configured on each RB set in the first RB set(s) in the resource pool, and for the T PSCCH time slots associated with the K subchannels and/or PSFCH occasions of each RB set in the first RB set(s), subchannel i and/or slot j are associated with m interlaces in M1 interlaces, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T.
  • the PSFCH resource set is configured for each RB set (per RB set).
  • Q3 third resource sets may include one or more resource sets, that is, the configured fifth PSFCH resource set can span one or more resource sets.
  • M1 PRBs/interlaces are configured on each RB set in the resource pool.
  • subchannel i and/or slot j have an association relationship with m interlaces in the M1 interlaces, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T. It can be equivalent to mapping all PSSCHs in the resource pool to a PSFCH resource set and then repeating the transmission on each RB set.
  • association relationship between the above subchannel i and/or slot j and m PRBs in M1 PRBs can be understood as follows: the terminal allocates m PRBs from M1 PRBs to subchannel i and/or slot j, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T.
  • the association relationship between the above subchannel i and/or slot j and m interlaces in M1 interlaces can be understood as follows: the terminal allocates m interlaces from M1 interlaces to subchannel i and/or slot j, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ T.
  • the association relationship between the above subchannel i and/or slot j in RB set p and m PRBs in M1 PRBs can be understood as follows: the terminal allocates m PRBs from M1 PRBs to subchannel i and/or slot j in RB set p.
  • the association relationship between subchannel i and/or slot j in the above RB set p and m interlaces in M1 interlaces can be understood as: the terminal allocates m interlaces from M1 interlaces to subchannel i and/or slot j in RB set p.
  • mapping/allocating PSFCH resources can be set according to actual needs, and the following will be explained with respect to different association relationships.
  • mapping/allocation may be performed first in ascending order of j and then in ascending order of i, or mapping/allocation may be performed first in ascending order of i and then in ascending order of j.
  • mapping/allocation may be performed first in ascending order of j and then in ascending order of i, or mapping/allocation may be performed first in ascending order of i and then in ascending order of j.
  • mapping/allocation can be performed first in the ascending order of p, then in the ascending order of j, and finally in the ascending order of i, or in the ascending order of p, then in the ascending order of i, and finally in the ascending order of j; or in the ascending order of i, then in the ascending order of p, and finally in the ascending order of j; or in the ascending order of i, then in the ascending order of j, and finally in the ascending order of p; or in the ascending order of j, then in the ascending order of p.
  • the mapping/allocation is finally performed in the ascending order of i; or in the ascending order of j, then in the ascending order of i, and finally in the ascending order of p.
  • the mapping/allocation can be performed in the ascending order of p first, then in the ascending order of j, and finally in the ascending order of i; or in the ascending order of p, then in the ascending order of i, and finally in the ascending order of j; or in the ascending order of i, then in the ascending order of p, and finally in the ascending order of j; or in the ascending order of i, then in the ascending order of j, and finally in the ascending order of p; or in the ascending order of j, then in the ascending order of p, and finally in the ascending order of i; or in the ascending order of j, then in the ascending order of p, and finally in the ascending order of i; or
  • mapping the first target object to the relevant PSFCH resource set can be understood as mapping the feedback information of the PSFCH resource set to the relevant PSFCH resource set for transmission.
  • the association relationship between the first target object and the PSFCH further satisfies at least one of the following:
  • the first association relationship or the second association relationship further includes at least one of the following: an association relationship between resource units in resource sets other than the second resource set and the sixth PSFCH resource set configured on the third resource set, an association relationship between the second time unit where the first target object is associated with the first time unit where the PSFCH is located and the sixth PSFCH resource set configured on the third resource set;
  • the first association relationship also includes at least one of the following: an association relationship between resource units in resource sets other than the second resource set and the seventh PSFCH resource set configured on the N2 second resource sets, an association relationship between the second time unit where the first target object is associated with the first time unit where the PSFCH is located and the seventh PSFCH resource set configured on the N2 second resource sets;
  • the third resource set is a resource set other than the second resource set, and N2 is a positive integer.
  • the first target object on the resource set other than the second resource set is mapped to the sixth PSFCH resource set.
  • M2 PRBs are configured on an RB set other than the first RB set(s)
  • subchannel i2 and/or slot j2 are associated with m2 PRBs among the M2 PRBs, where 0 ⁇ i2 ⁇ K2, 0 ⁇ j2 ⁇ T2, and the first RB set is the RB set(s) where the second terminal operates.
  • M2 interlaces are configured on an RB set other than the first RB set(s), and for T2 PSSCH slots associated with K2 subchannels and/or PSFCH occasions on RB sets other than the first RB set(s), subchannel i2 and/or slot j2 are associated with m2 interlaces among the M2 interlaces, where 0 ⁇ i2 ⁇ K2, 0 ⁇ j2 ⁇ T2, and the first RB set is the RB set(s) where the second terminal operates. That is, the PSSCH in the wideband except the subband is mapped to the third resource set to configure the sixth PSFCH resource set.
  • M2 PRBs are configured on the RB set other than the first RB set(s), and for the K2 subchannels and/or T2 PSSCH slots associated with the PSFCH occasion on the L2 RB sets other than the first RB set(s), the RB set p2 in subchannel i2 and/or slot j2 are associated with m2 PRBs out of M2 PRBs, where 0 ⁇ i2 ⁇ K2, 0 ⁇ j2 ⁇ T2, 0 ⁇ p2 ⁇ L2, and the first RB set is the RB set(s) where the second terminal works.
  • M2 interlaces are configured on an RB set other than the first RB set(s), and for T2 PSSCH slots associated with K2 subchannels and/or PSFCH occasions on L2 RB sets other than the first RB set(s), subchannel i2 and/or slot j2 in RB set p2 are associated with m2 interlaces out of M2 interlaces, where 0 ⁇ i2 ⁇ K2, 0 ⁇ j2 ⁇ T2, 0 ⁇ p2 ⁇ L2, and the first RB set is the RB set(s) where the second terminal works.
  • association relationship between the above subchannel i2 and/or slot j2 and m2 PRBs among M2 PRBs can be understood as follows: the terminal allocates m2 PRBs from M2 PRBs to subchannel i2 and/or slot j2, where 0 ⁇ i2 ⁇ K2, 0 ⁇ j2 ⁇ T2.
  • the association relationship between the above subchannel i2 and/or slot j2 and m2 interlaces among M2 interlaces can be understood as follows: the terminal allocates m2 interlaces from M2 interlaces to subchannel i2 and/or slot j2, where 0 ⁇ i2 ⁇ K2, 0 ⁇ j2 ⁇ T2.
  • the association relationship between the above subchannel i2 and/or slot j2 in RB set p2 and m2 PRBs among M2 PRBs can be understood as follows: the terminal allocates m2 PRBs from M2 PRBs to subchannel i2 and/or slot j2 in RB set p2.
  • the association relationship between subchannel i2 and/or slot j2 in the above RB set p2 and m2 interlaces among the M2 interlaces can be understood as: the terminal allocates m2 interlaces from the M2 interlaces to subchannel i2 and/or slot j2 in the RB set p2.
  • mapping/allocation order is similar to the other cases mentioned above and will not be repeated here.
  • the transmission resources contained in at least one PSFCH resource set from the first PSFCH resource set to the seventh PSFCH resource set have second information, and the second information includes at least one of a cyclic shift, an orthogonal complementary code (OCC) and an offset, and the second information of the transmission resources has different values corresponding to different resource sets.
  • OCC orthogonal complementary code
  • a PSFCH resource set is configured in one or more specific RB sets, and subchannels in different RB sets are mapped to the PSFCH resource set. If each RB set has a subchannel with the same number (or index), then the subchannels on different RB sets may be mapped to the same transmission resource (i.e., PSFCH resource) in the PSFCH resource set. It is necessary to distinguish the PSFCHs on different RB sets through different values of the above-mentioned second information, that is, subchannels with the same number (or index) in different RB sets are associated with the same PSFCH resource with different second information.
  • the first terminal transmitting a first physical sidelink feedback channel PSFCH according to the first information includes:
  • the first terminal determines the transmission resource of the first PSFCH according to the first transmission resource of the first target object
  • the first terminal transmits the PSFCH according to the transmission resource of the first PSFCH;
  • the method for determining the transmission resource of the first PSFCH includes at least one of the following:
  • the first overlapping part is the overlapping part of the resources occupied by the first transmission resource of the first target object associated with the first PSFCH and the second target resource set, or the first overlapping part is the overlapping part of the resources occupied by the first transmission resource of the first target object associated with the first PSFCH and the resource set preconfigured or configured by the network side device, and the second target resource set is the resource set that the second terminal works, supports or is configured.
  • the first terminal can determine the transmission resource of the PSFCH according to the lowest/highest/specific one or more RB sets occupied by the PSCCH/PSSCH. For example, the first terminal feeds back the PSFCH on the lowest/highest/specific one or more RB sets occupied by the PSSCH, or the first terminal feeds back the PSFCH on the transmission resource of the PSFCH associated with the subchannel of the lowest/highest/specific one or more RB sets occupied by the PSSCH.
  • the lowest/highest/specific can represent the index or frequency domain position of the RB set.
  • the specific RB set is predefined by the protocol, or preconfigured/configured by the network, or determined by negotiation with the second terminal, or indicated by the second terminal, or the lowest/highest RB set.
  • the lowest RB set is the lowest RB set in the resource pool, wideband or public RB set.
  • the terminal can determine multiple PSFCH resources on the occupied RB set for one PSCCH/PSSCH, that is, the terminal can feedback PSFCH on each RB set where the PSSCH is located.
  • the first terminal can also determine the PSFCH resources according to the PSCCH/PSSCH in each occupied RB set.
  • a method for determining the transmission resources of the first PSFCH is determined according to the resource unit occupied by the first transmission resources of the first target object associated with the first PSFCH, for example, the first terminal determines the transmission resources of the PSFCH according to the lowest subchannel occupied by the PSCCH/PSSCH.
  • the first terminal determines the transmission resources of PSFCH based on the lowest subchannel on the lowest RB set occupied by PSCCH/PSSCH.
  • the first terminal determines the transmission resource of the PSFCH according to the lowest subchannel on each RB set occupied by the PSCCH/PSSCH.
  • a method for determining the transmission resource of the first PSFCH is determined according to a second time unit occupied by the first transmission resource of the first target object associated with the first PSFCH.
  • the first terminal can determine the transmission resource of the first PSFCH according to the PSCCH/PSSCH time.
  • the transmission resource of PSFCH is determined by the slot.
  • a method for determining the transmission resources of the first PSFCH according to the resource set occupied by the first transmission resource of the first target object in the first overlapping part for example, the first terminal determines the transmission resources of the PSFCH according to the RB set occupied by PSCCH/PSSCH in the first overlapping part.
  • the first terminal can feedback PSFCH on each RB set occupied by PSSCH on the subband, or the first terminal feedbacks PSFCH on the RB set of the subband, or the first terminal feedbacks PSFCH on the PSFCH resources associated with the subchannel on the RB set occupied by the first overlapping part according to PSCCH/PSSCH.
  • determining the transmission resource of the first PSFCH according to a resource set occupied by the first transmission resource of the first target object associated with the first PSFCH includes:
  • the fourth resource set includes any one of the following:
  • the first P1 resource sets are arranged in descending order according to the number of configured feedback resources, where P1 is a positive integer;
  • the first P1 resource sets arranged in descending order according to the resource set index, where P1 is a positive integer;
  • the first P2 resource sets arranged in ascending order according to the resource set index, where P2 is a positive integer;
  • the first P3 resource sets arranged in descending order according to the frequency domain positions of the resource sets, where P3 is a positive integer;
  • the first P4 resource sets arranged in ascending order according to the frequency domain positions of the resource sets, where P4 is a positive integer;
  • a preset set of resources A preset set of resources.
  • determining the transmission resource of the first PSFCH according to the resource set occupied by the first overlapping part includes:
  • the fifth resource set includes any one of the following:
  • the first L2 resource sets arranged in descending order according to the resource set index, where L2 is a positive integer;
  • the first L3 resource sets arranged in ascending order according to the resource set index, where L3 is a positive integer;
  • the first L4 resource sets arranged in descending order according to the frequency domain positions of the resource sets, where L4 is a positive integer;
  • the first L5 resource sets arranged in descending order according to the frequency domain positions of the resource sets, where L5 is a positive integer;
  • a preset set of resources A preset set of resources.
  • the above-mentioned preset resource set can be understood as a specific resource set, for example, it can be determined based on at least one of protocol agreement, network side equipment configuration, network side equipment pre-configuration, first terminal pre-configuration, second terminal indication and negotiation between the first terminal and the second terminal.
  • the first terminal transmitting a first physical sidelink feedback channel PSFCH according to the first information includes at least one of the following:
  • the first terminal When the resource pool, BWP or carrier configured by the first terminal includes a guard band, and LBT is successful on resource sets on both sides of the guard band, the first terminal sends the first PSFCH on the resource set included in the guard band;
  • the second target object includes at least one of PSFCH, sidelink synchronization signal block (Sidelink Synchronization Signal and PBCH block, S-SSB), PSSCH and PSCCH.
  • PSFCH sidelink synchronization signal block
  • S-SSB Sidelink Synchronization Signal and PBCH block
  • PSSCH PSCCH
  • the first PSFCH is sent when LBT succeeds in all resource sets where the second target object is located, and the first PSFCH is not sent when LBT fails in one or some resource sets among all resource sets where the second target object is located. For example, if the first terminal fails in LBT in any RB set where the second target object is located, the sending of PSFCH is canceled; if the first terminal succeeds in LBT in all RB sets where the second target object is located, the PSFCH is sent.
  • a PSFCH is sent on other RB sets where LBT succeeds.
  • a PSFCH is sent on the RB set.
  • the resource pool/BWP/carrier configured by the first terminal includes a guard band
  • the PSFCH on the guard band is sent; if any RB on both sides of the guard band set LBT fails, the PSFCH sent on the guard band is canceled.
  • the PSFCH resource set is determined based on a bitmap, and the bitmap is determined according to at least one of a protocol agreement, a network side device configuration, a first terminal pre-configuration, and a second terminal indication.
  • the RB set set configured with PSFCH can be indicated by a bitmap
  • the PRB/interlace set used for PSFCH in wideband, in a resource pool, or in one or more RB sets
  • the PRB/interlace set used for PSFCH in wideband, in a resource pool, or in one or more RB sets
  • the first information includes a PSFCH resource set
  • PSFCHs of different first time units in the PSFCH resource set have different transmission modes or have different association relationships between the first target objects and the PSFCH.
  • different transmission or mapping methods may be used in different PSFCH time domain occasions.
  • different PSFCH resource sets are configured for different PSFCH occasions, or the association relationship/mapping method between PSFCH and PSCCH/PSSCH is different; or, different PSFCH occasions have different OCC/RB set hopping.
  • the PSFCH resource set includes at least one of the following:
  • the first PSFCH resource set configured on every Q1 resource sets in the resource pool
  • a third PSFCH resource set configured on N1 second resource sets among the N second resource sets in the resource pool;
  • a fourth PSFCH resource set configured on every Q2 second resource sets among the N second resource sets in the resource pool;
  • a seventh PSFCH resource set configured on N2 second resource sets excluding the N1 second resource sets in the N second resource sets;
  • Q1, Q2, Q3, N, N1 and N2 are positive integers
  • the third resource set is a resource set other than the second resource set.
  • the resource set includes at least one of the following: at least one resource block set, at least one resource block range, at least one subchannel, at least one BWP, at least one guard band and interleaving.
  • association relationship between the first target object and the PSFCH is explained below through some examples.
  • M1 PRBs/interlaces are configured on each RB set in the resource pool.
  • the terminal allocates m PRBs/interlaces out of the M1 PRBs/interlaces to subchannel i and/or slot j, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ N, and the mapping/allocation is first performed in ascending order of j and then in ascending order of i. Specifically, as shown in FIG3 .
  • M1 PRBs/interlaces are configured on the lowest RB set in the resource pool.
  • the terminal allocates m PRBs/interlaces out of the M1 PRBs/interlaces to subchannel i and/or slot j, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ N, and the mapping/allocation is first based on the ascending order of j and then based on the ascending order of i. Specifically, as shown in FIG4 .
  • the narrowband terminal works on RB set 1
  • the broadband terminal works on RB set 0 and RB set 1.
  • M1 PRBs/interlaces are configured on RB set 1.
  • the terminal allocates m PRBs/interlaces among the M1 PRBs/interlaces to subchannel i and/or slot j, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ N, and is mapped/allocated first according to the ascending order of j and then according to the ascending order of i.
  • M2 PRBs/interlaces are configured on RB set 0, which is an RB set other than RB set 1.
  • the terminal allocates m2 PRBs/interlaces among the M2 PRBs/interlaces to subchannel i2 and/or slot j2, where 0 ⁇ i2 ⁇ K2, 0 ⁇ j2 ⁇ N2, and is mapped/allocated first according to the ascending order of j2 and then according to the ascending order of i2. Specific details are shown in FIG5.
  • M1 PRBs/interlaces are configured on the lowest RB set in the resource pool.
  • the terminal allocates m PRBs/interlaces out of the M1 PRBs/interlaces to subchannel i and/or slot j, where 0 ⁇ i ⁇ K, 0 ⁇ j ⁇ N, and maps/allocates first in ascending order of j and then in ascending order of i.
  • different RB sets have subchannels with the same number.
  • subchannels with the same number on different RB sets will be mapped to the same PSFCH PRB/interlace, for example, subchannel 0 on RB set 0 and subchannel 0 on RB set 1 are mapped to the same PSFCH (i.e., PSFCH 0).
  • PSFCH 0 the same PSFCH
  • subchannels with the same number on different RB sets correspond to PRBs/interlaces of PSFCH with different cyclic shift/OCC/offsets.
  • subchannels with the same number on different RB sets are mapped to PRBs/interlaces of PSFCH in ascending/descending order of cyclic shift/OCC/offset, as shown in FIG6 .
  • A0-A5 and B0-B6 represent different subchannels, respectively.
  • One subchannel occupies one interlace, and the figure omits multiple PRBs actually occupied by one interlace, and exemplarily shows two PRBs occupied in the interlace.
  • the present application provides a transmission method.
  • the transmission method includes:
  • Step 701 the first terminal transmits synchronization information according to the third information
  • the third information includes at least one of the first configuration information, the LBT result and the first criterion; the first configuration information is used to configure or indicate the transmission method of the synchronization information, and the first criterion is used to indicate the condition that the synchronization information to be sent does not need to execute LBT.
  • the synchronization information is carried in the S-SSB, that is, the transmission of the synchronization information is equivalent to the transmission of the S-SSB.
  • the synchronization information can be used to achieve synchronization between the first terminal and the second terminal to ensure the reliability of the side link communication between the first terminal and the second terminal, or to achieve synchronization between the first terminals, thereby ensuring the reliability of the side link communication between the first terminals.
  • the first criterion is used to determine whether it is necessary to perform LBT, that is, to determine whether it is necessary to perform LBT first, and then determine whether to transmit synchronization information based on the result of LBT.
  • the first criterion is to indicate the condition that the synchronization information to be sent does not need to execute LBT, that is, the condition that the first terminal uses Short control signaling transmission technology to transmit the synchronization information.
  • the condition for using short control signaling transmission technology is that within an observation period of 50ms, the number of SCSt transmissions performed by the device must not exceed 50, and the total duration of SCSt transmission by the device within the observation period is less than 2500us. It can be found that the conditions for using SCSt transmission have both quantity and duration restrictions. If the restrictions are met, LBT does not need to be executed and the corresponding content can be sent. Therefore, the transmission of synchronization information should also follow the corresponding conditions if it is to be sent without executing LBT.
  • the synchronization information is transmitted based on at least one of the first configuration information, the LBT result and the first criterion, the first terminal and the second terminal can be synchronized. Therefore, the embodiment of the present application can improve the reliability of the sidelink communication.
  • the first configuration information includes at least one of the following:
  • a first transmission mode where the first transmission mode is that the first terminal transmits synchronization information on each resource set;
  • a second transmission mode wherein the second transmission mode is that the first terminal transmits synchronization information on a resource set configured or preconfigured by a network side device;
  • a third transmission mode wherein the third transmission mode is that the first terminal does not transmit synchronization information on a protection band.
  • the terminal transmits S-SSB on each resource set supported to transmit synchronization information. Since synchronization information is transmitted on each resource set, it is possible to achieve synchronization information transmission between terminals that work, support or are configured with different resource sets, thereby avoiding the problem of failure to synchronize through synchronization information due to the selection of bandwidth transmission that is not supported by other terminals between terminals with different bandwidths, thereby causing transmission errors. question.
  • the resource set configured or pre-configured by the above-mentioned network side device may be at least a part of the resource set contained in the overlapping part of the first terminal and the second terminal. This enables the transmission of synchronization information between terminals that work, support or are configured with different resource sets, that is, the terminal will at least transmit synchronization information on the resource set configured or pre-configured by the network side device, thereby avoiding the problem of transmission errors between terminals with different bandwidths due to the inability to obtain synchronization messages on the supported bandwidth.
  • the first terminal transmitting synchronization information according to the third information includes at least one of the following:
  • the first terminal When the first criterion is met, the first terminal sends synchronization information; that is, when the number and duration of SCSt transmission implemented by the first terminal within the period are still less than the threshold, SCSt can be directly used to send synchronization information;
  • the first terminal When the first criterion is not met, the first terminal sends synchronization information after executing LBT; that is, when the number and duration of SCSt transmission implemented by the first terminal within the period are greater than the threshold, since SCSt is no longer allowed to send synchronization information, it can only use other access methods to execute LBT, and then send synchronization information after LBT is successful;
  • the first terminal selects to send synchronization information on a resource set based on the first criterion to meet the first criterion. That is, when the first terminal selects multiple resource sets to send synchronization information, since the use of SCSt for sending on all of these resource sets may not meet the first criterion or the specification, the terminal can only select some resource sets to perform SCSt sending to meet the first criterion.
  • the selection of these resource sets can be random, or it can be judged and selected based on the results of the previous LBT, the degree of congestion of the resource set and other measurement results.
  • the synchronization information on those resource sets that are not selected may not be sent, or other access methods may be used to perform LBT, and if successful, it will be sent again.
  • the synchronization information on the resource set is selected to be sent based on the first criterion, it can be ensured that the selected synchronization information can meet the first criterion without performing the LBT operation, thereby reducing the signaling overhead of the synchronization information transmission.
  • the first terminal transmitting synchronization information according to the third information includes at least one of the following:
  • the first terminal performs LBT on the selected resource set, obtains an LBT result, and determines whether to send the synchronization information based on the LBT result;
  • the first terminal sends the synchronization information on the resource set where LBT succeeds; that is, the synchronization information reuses the downlink multi-channel access mode defined in NR-U, that is, the synchronization information can be sent only on the resource set where LBT succeeds, without having to successfully access all selected resource sets before sending.
  • the first terminal When LBT is successful on all selected resource sets, the first terminal sends the synchronization information.
  • the synchronization information is sent when LBT is successful on all selected resource sets, if LBT fails for one or more resource sets in the selected resource sets, the sending of the synchronization information is canceled.
  • the resource set may include at least one of the following resource units: a resource block set, a resource block range, a sub-channel, a BWP, a guard band, and an interlace.
  • the transmission method provided in the embodiment of the present application can be executed by a transmission device.
  • the transmission device provided in the embodiment of the present application is described by taking the transmission method executed by the transmission device as an example.
  • the embodiment of the present application further provides a transmission device.
  • the transmission device 800 includes:
  • the first transmission module 801 is used to transmit a first physical sidelink feedback channel PSFCH according to the first information, where the first PSFCH carries feedback information of the first target object;
  • the first information includes at least one of the following: an association relationship between the first target object and the PSFCH, a first transmission resource of the first target object, a PSFCH resource set, and a listen-before-talk LBT result;
  • the first target object includes a physical sidelink shared channel PSSCH and/or a physical sidelink control channel PSCCH.
  • association relationship between the first target object and the PSFCH satisfies at least one of the following:
  • the association relationship between the first target object and the PSFCH includes at least one of the following: an association relationship between a resource unit of a resource set in each Q1 resource set and the first PSFCH resource set on the Q1 resource set, and an association relationship between a second unit time where the first target object is associated with a first time unit where the PSFCH is located and the first PSFCH resource set on the Q1 resource set;
  • the association relationship between the first target object and the PSFCH includes at least one of the following: an association relationship between resource units in all resource sets in the resource pool and the second PSFCH resource set, an association relationship between a second unit time where the first target object is located and the second PSFCH resource set associated with a first time unit where the PSFCH is located;
  • the association relationship between the first target object and the PSFCH includes a first association relationship
  • the first association relationship includes at least one of the following: an association relationship between resource units in the N second resource sets and the third PSFCH resource set configured on the N1 second resource sets, and an association relationship between a second time unit where the first target object is located and a first PSFCH resource set configured on the N1 second resource sets that is associated with a first time unit where the PSFCH is located;
  • the association relationship between the first target object and the PSFCH includes a second association relationship
  • the second association relationship includes at least one of the following: an association relationship between a resource unit in each Q2 second resource set and a fourth PSFCH resource configured on the Q2 second resource sets, and an association relationship between a second time unit where the first target object is located and the fourth PSFCH resource set configured on the Q2 second resource sets that is associated with the first time unit where the PSFCH is located;
  • the association relationship between the first target object and the PSFCH includes at least one of the following: an association relationship between resource units in all resource sets in the resource pool and the fifth PSFCH resource set configured on every Q3 second resource sets, an association relationship between the second time unit where the first target object is located and the fifth PSFCH resource set configured on every Q3 third resource sets associated with the first time unit where the PSFCH is located;
  • Q1, Q2 and Q3 are positive integers
  • the resource unit is a unit resource for transmitting the first target object.
  • the first resource set and/or N1 second resource sets are determined according to at least one of protocol pre-definition, network side device pre-configuration, network side device configuration, negotiation between the first terminal and the second terminal, and second terminal indication; N and N1 are both positive integers, and N is greater than or equal to N1, and the N second resource sets satisfy at least one of the following: the N second resource sets are the overlapping parts of the first target resource set and the second target resource set, and the N second resource sets are resource sets pre-configured or configured by the network side device, wherein the first target resource set is a resource set that works, supports or is configured with the first terminal, and the second target resource set is a resource set that works, supports or is configured with the second terminal.
  • association relationship between the first target object and the PSFCH further satisfies at least one of the following:
  • the first association relationship or the second association relationship further includes at least one of the following: an association relationship between resource units in resource sets other than the second resource set and the sixth PSFCH resource set configured on the third resource set, and an association relationship between a second time unit where the first target object is associated with the first time unit where the PSFCH is located and the sixth PSFCH resource set configured on the third resource set;
  • the first association relationship further includes at least one of the following: an association relationship between resource units in resource sets other than the second resource set and the seventh PSFCH resource set configured on the N2 second resource sets, and an association relationship between the second time unit where the first target object is associated with the first time unit where the PSFCH is located and the seventh PSFCH resource set configured on the N2 second resource sets;
  • the third resource set is a resource set other than the second resource set, and N2 is a positive integer.
  • the transmission resources contained in at least one PSFCH resource set from the first PSFCH resource set to the seventh PSFCH resource set have second information, and the second information includes at least one of cyclic shift, orthogonal mask and offset, and the second information of the transmission resources has different values corresponding to different resource sets.
  • the first transmission module 801 includes:
  • a determining unit configured to determine a transmission resource of the first PSFCH according to a first transmission resource of a first target object
  • a transmission unit configured to transmit the PSFCH according to the transmission resource of the first PSFCH
  • the method for determining the transmission resource of the first PSFCH includes at least one of the following:
  • the first overlapping part is the overlapping part of the resources occupied by the first transmission resources of the first target object associated with the first PSFCH and the second target resource set, or the first overlapping part is the overlapping part of the resources occupied by the first transmission resources of the first target object associated with the first PSFCH and the resource set pre-configured or configured by the network side device, and the second target resource set is the resource set that the second terminal works, supports or is configured.
  • determining the transmission resource of the first PSFCH according to a resource set occupied by the first transmission resource of the first target object associated with the first PSFCH includes:
  • the fourth resource set includes any one of the following:
  • the first P1 resource sets are arranged in descending order according to the number of configured feedback resources, where P1 is a positive integer;
  • the first P1 resource sets arranged in descending order according to the resource set index, where P1 is a positive integer;
  • the first P2 resource sets arranged in ascending order according to the resource set index, where P2 is a positive integer;
  • the first P3 resource sets arranged in descending order according to the frequency domain positions of the resource sets, where P3 is a positive integer;
  • the first P4 resource sets arranged in ascending order according to the frequency domain positions of the resource sets, where P4 is a positive integer;
  • a preset set of resources A preset set of resources.
  • determining the transmission resource of the first PSFCH according to the resource set occupied by the first overlapping part includes:
  • the fifth resource set includes any one of the following:
  • the first L2 resource sets arranged in descending order according to the resource set index, where L2 is a positive integer;
  • the first L3 resource sets arranged in ascending order according to the resource set index, where L3 is a positive integer;
  • the first L4 resource sets arranged in descending order according to the frequency domain positions of the resource sets, where L4 is a positive integer;
  • the first L5 resource sets arranged in descending order according to the frequency domain positions of the resource sets, where L5 is a positive integer;
  • a preset set of resources A preset set of resources.
  • the first transmission module 801 is specifically configured to perform at least one of the following:
  • the first terminal When the resource pool, BWP or carrier configured by the first terminal includes a guard band, and LBT is successful on resource sets on both sides of the guard band, the first terminal sends the first PSFCH on the resource set included in the guard band;
  • the second target object includes at least one of PSFCH, sidelink synchronization signal block S-SSB, PSSCH and PSCCH.
  • the PSFCH resource set includes at least one of the following: at least one physical resource block, at least one interlace, at least one resource block set and at least one guard band.
  • the PSFCH resource set is determined based on a bit map, and the bit map is determined according to at least one of a protocol agreement, a network side device configuration, a first terminal pre-configuration, and a second terminal indication.
  • the first information includes a PSFCH resource set
  • PSFCHs of different first time units in the PSFCH resource set have different transmission modes or have different association relationships between the first target objects and the PSFCH.
  • the PSFCH resource set includes at least one of the following:
  • the first PSFCH resource set configured on every Q1 resource sets in the resource pool
  • a third PSFCH resource set configured on N1 second resource sets among the N second resource sets in the resource pool;
  • a fourth PSFCH resource set configured on every Q2 second resource sets among the N second resource sets in the resource pool;
  • a seventh PSFCH resource set configured on N2 second resource sets excluding the N1 second resource sets among the N second resource sets;
  • Q1, Q2, Q3, N, N1 and N2 are positive integers
  • the third resource set is a resource set other than the second resource set.
  • the resource set includes at least one of the following resource units: a resource block set, a resource block range, a sub-channel, a BWP, a guard band, and an interlace.
  • the transmission device 900 includes:
  • the second transmission module 901 is used to transmit synchronization information according to the third information
  • the third information includes at least one of the first configuration information, the LBT result and the first criterion; the first configuration information is used to configure or indicate the transmission method of the synchronization information, and the first criterion is used to indicate the condition that the synchronization information to be sent does not need to execute LBT.
  • the first configuration information includes at least one of the following:
  • a first transmission mode where the first transmission mode is that the first terminal transmits synchronization information on each resource set;
  • a second transmission mode wherein the second transmission mode is that the first terminal transmits synchronization information on a resource set configured or preconfigured by a network side device;
  • a third transmission mode wherein the third transmission mode is that the first terminal does not transmit synchronization information on a protection band.
  • the second transmission module 901 is configured to perform at least one of the following:
  • the synchronization information is sent after executing LBT;
  • the synchronization information on the resource set is selected based on the first criterion to satisfy the first criterion.
  • the second transmission module 901 is configured to perform at least one of the following:
  • the synchronization information is sent.
  • the transmission device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip.
  • the electronic device can be a terminal, or it can be other devices other than a terminal.
  • the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.
  • the transmission device provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 2 to 7 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • an embodiment of the present application also provides a communication device 1000, including a processor 1001 and a memory 1002, and the memory 1002 stores a program or instruction that can be executed on the processor 1001.
  • the program or instruction is executed by the processor 1001
  • the various steps of the above-mentioned transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is used to transmit a first physical sidelink feedback channel PSFCH according to first information, wherein the first PSFCH carries feedback information of a first target object; the first information includes at least one of the following: an association relationship between the first target object and the PSFCH, a first transmission resource of the first target object, a PSFCH resource set, and a listen-before-talk LBT result; wherein the first target object includes a physical sidelink shared channel PSSCH and/or a physical sidelink link control channel PSCCH;
  • the communication interface is used to transmit synchronization information based on third information; wherein the third information includes at least one of first configuration information, LBT result and first criterion; the first configuration information is used to configure or indicate the transmission method of the synchronization information, and the first criterion is used to indicate that the synchronization information to be sent does not need to execute the LBT condition.
  • the terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to the terminal embodiment and can achieve the same technical effect.
  • Figure 11 is a schematic diagram of the hardware structure of a terminal implementing the embodiment of the present application.
  • the terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109 and at least some of the components of a processor 1110.
  • the terminal 1100 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1110 through a power management system, so that the power management system can manage charging, discharging, and power consumption.
  • a power source such as a battery
  • the terminal structure shown in FIG. 11 does not constitute a limitation on the terminal.
  • the present invention may include more or fewer components than those shown in the figure, or some components may be combined, or the components may be arranged differently, which will not be described in detail here.
  • the input unit 1104 may include a graphics processing unit (GPU) 11041 and a microphone 11042, and the graphics processor 11041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
  • the display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
  • the user input unit 1107 includes a touch panel 11071 and at least one of other input devices 11072.
  • the touch panel 11071 is also called a touch screen.
  • the touch panel 11071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
  • the RF unit 1101 can transmit the data to the processor 1110 for processing; in addition, the RF unit 1101 can send uplink data to the network side device.
  • the RF unit 1101 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
  • the memory 1109 can be used to store software programs or instructions and various data.
  • the memory 1109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc.
  • the memory 1109 may include a volatile memory or a non-volatile memory, or the memory 1109 may include both volatile and non-volatile memories.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
  • the volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM).
  • the memory 1109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.
  • the processor 1110 may include one or more processing units; optionally, the processor 1110 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1110.
  • the radio frequency unit 1101 is used to transmit a first physical sidelink feedback channel PSFCH according to the first information, and the first PSFCH carries feedback information of the first target object;
  • the first information includes at least one of the following: an association relationship between the first target object and the PSFCH, a first transmission resource of the first target object, a PSFCH resource set, and a listen-before-talk LBT result; wherein the first target object includes a physical sidelink shared channel PSSCH and/or a physical sidelink link Control channel PSCCH;
  • the radio frequency unit 1101 is used to transmit synchronization information based on third information; wherein the third information includes at least one of first configuration information, LBT result and first criterion; the first configuration information is used to configure or indicate the transmission method of the synchronization information, and the first criterion is used to indicate the condition that the synchronization information to be sent does not need to perform LBT.
  • An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored.
  • a program or instruction is stored.
  • the various processes of the above-mentioned transmission method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.
  • An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
  • the embodiments of the present application further provide a computer program/program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the above-mentioned transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • An embodiment of the present application also provides a communication system, including: a first terminal and a second terminal, wherein the first terminal is used to execute the various processes as shown in Figure 2 or Figure 7 and the various transmission method embodiments mentioned above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

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

Abstract

La présente demande appartient au domaine technique des communications. Un procédé et un appareil de transmission, et un terminal et un support d'enregistrement lisible sont divulgués. Le procédé de transmission dans les modes de réalisation de la présente demande comprend les étapes suivantes : un premier terminal transmet un premier canal de retour de liaison latérale physique (PSFCH) en fonction de premières informations, le premier PSFCH comportant des informations de retour d'un premier objet cible, les premières informations comprenant au moins l'un des éléments suivants : une relation d'association entre le premier objet cible et un PSFCH, une première ressource de transmission du premier objet cible, un ensemble de ressources PSFCH et un résultat d'accès multiple avec écoute de porteuse (LBT) ; et le premier objet cible comprenant un canal de partage de liaison latérale physique (PSSCH) et/ou un canal de commande de liaison latérale physique (PSCCH).
PCT/CN2023/127653 2022-11-04 2023-10-30 Procédé et appareil de transmission, et terminal et support d'enregistrement lisible WO2024093895A1 (fr)

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CN202211380046.1 2022-11-04
CN202211380046.1A CN118042641A (zh) 2022-11-04 2022-11-04 传输方法、装置、终端及可读存储介质

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111416700A (zh) * 2019-01-04 2020-07-14 株式会社Kt 传送侧链路harq反馈信息的方法和装置
CN111865504A (zh) * 2019-04-30 2020-10-30 北京三星通信技术研究有限公司 用于旁路通信的方法、接收设备和发送设备
CN111865505A (zh) * 2019-04-30 2020-10-30 中国移动通信有限公司研究院 一种资源选择方法及设备
WO2021136373A1 (fr) * 2020-01-03 2021-07-08 夏普株式会社 Procédé exécuté par un équipement d'utilisateur, et équipement d'utilisateur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111416700A (zh) * 2019-01-04 2020-07-14 株式会社Kt 传送侧链路harq反馈信息的方法和装置
CN111865504A (zh) * 2019-04-30 2020-10-30 北京三星通信技术研究有限公司 用于旁路通信的方法、接收设备和发送设备
CN111865505A (zh) * 2019-04-30 2020-10-30 中国移动通信有限公司研究院 一种资源选择方法及设备
WO2021136373A1 (fr) * 2020-01-03 2021-07-08 夏普株式会社 Procédé exécuté par un équipement d'utilisateur, et équipement d'utilisateur

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