WO2023087282A1 - 无线通信方法、第一终端设备及第二终端设备 - Google Patents

无线通信方法、第一终端设备及第二终端设备 Download PDF

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Publication number
WO2023087282A1
WO2023087282A1 PCT/CN2021/131920 CN2021131920W WO2023087282A1 WO 2023087282 A1 WO2023087282 A1 WO 2023087282A1 CN 2021131920 W CN2021131920 W CN 2021131920W WO 2023087282 A1 WO2023087282 A1 WO 2023087282A1
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Prior art keywords
resource
comb
pssch
code domain
psfch
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PCT/CN2021/131920
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English (en)
French (fr)
Inventor
赵振山
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Oppo广东移动通信有限公司
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Priority to PCT/CN2021/131920 priority Critical patent/WO2023087282A1/zh
Publication of WO2023087282A1 publication Critical patent/WO2023087282A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/48Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the communication field, and more specifically, to a wireless communication method, a first terminal device, and a second terminal device.
  • the physical sidelink feedback channel Physical Sidelink Feedback Channel, PSFCH
  • RB Resource Block
  • PSSCH Physical Sidelink Shared Channel
  • RB resource block
  • the transmission resources of the Physical Sidelink Shared Channel (PSSCH) and the PSFCH transmission resources are in one-to-one correspondence, that is, for each PSSCH, the receiving terminal can determine a unique RB, and perform side transmission on the RB feedback.
  • terminal devices can work in unlicensed spectrum.
  • PSFCH transmission on the licensed frequency spectrum is a technical problem that needs to be solved urgently in this field.
  • Embodiments of the present application provide a wireless communication method, a first terminal device, and a second terminal device, which can realize PSFCH transmission of the first terminal device, and can not only improve system performance, but also improve resource utilization.
  • the present application provides a wireless communication method, including:
  • the second time slot is determined according to the first time slot, and the first PSFCH carries sidelink feedback information in response to the first PSSCH.
  • the present application provides a wireless communication method, including:
  • the present application provides a first terminal device configured to execute the method in the above first aspect or its various implementation manners.
  • the first terminal device includes a functional module configured to execute the method in the foregoing first aspect or each implementation manner thereof.
  • the first terminal device may include a processing unit, where the processing unit is configured to perform functions related to information processing.
  • the processing unit may be a processor.
  • the first terminal device may include a sending unit and/or a receiving unit.
  • the sending unit is used to perform functions related to sending, and the receiving unit is used to perform functions related to receiving.
  • the sending unit may be a transmitter or transmitter, and the receiving unit may be a receiver or receiver.
  • the first terminal device is a communication chip, the sending unit may be an input circuit or interface of the communication chip, and the sending unit may be an output circuit or interface of the communication chip.
  • the present application provides a second terminal device, configured to execute the method in the second aspect or various implementations thereof.
  • the second terminal device includes a function module configured to execute the method in the second aspect or each implementation manner thereof.
  • the second terminal device may include a processing unit configured to perform functions related to information processing.
  • the processing unit may be a processor.
  • the memory may be integrated with the processor, or the memory may be separated from the processor.
  • the memory may be integrated with the processor, or the memory may be separated from the processor.
  • the second terminal device further includes a transmitter (transmitter) and a receiver (receiver).
  • the present application provides a computer-readable storage medium for storing a computer program, and the computer program enables the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof .
  • the present application provides a computer program product, including computer program instructions, the computer program instructions cause a computer to execute any one of the above first to second aspects or the method in each implementation manner.
  • the present application provides a computer program, which, when run on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
  • Fig. 8 is a schematic diagram of a lateral feedback provided by the present application.
  • Fig. 9 is a schematic diagram of a PSFCH and PSCCH/PSSCH time slot structure provided by the present application.
  • FIG. 11 is an example of comb-based transmission resources provided by the embodiment of the present application.
  • FIG. 12 and FIG. 13 are schematic diagrams of a comb-based frame structure provided by an embodiment of the present application.
  • FIG. 14 is an example of a resource pool configured on an unlicensed spectrum provided by an embodiment of the present application.
  • Fig. 15 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.
  • Fig. 16 is an example of an index of a set of transmission resources that can be used to transmit PSFCH provided by the embodiment of the present application.
  • FIG. 17 is an example of a one-to-one correspondence between the combs included in the PSSCH resource pool and the combs in the PSFCH time slot provided by the embodiment of the present application.
  • Fig. 18 is an example of a many-to-one correspondence between the combs included in the PSSCH resource pool and the combs in the PSFCH time slot provided by the embodiment of the present application.
  • Fig. 22 is a schematic block diagram of a second terminal device provided by an embodiment of the present application.
  • Fig. 24 is a schematic block diagram of a chip provided by an embodiment of the present application.
  • the access terminal can 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 wireless Handheld devices with communication capabilities, computing devices or other linear processing devices connected to wireless modems, in-vehicle devices, wearable devices, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the embodiment of the present invention is described by taking the vehicle-mounted terminal as an example, but it is not limited thereto.
  • the technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.
  • GSM Global System of Mobile
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) network deployment scenario.
  • Carrier Aggregation, CA Carrier Aggregation
  • DC Dual Connectivity
  • SA independent network deployment scenario
  • the communication system of the present application can be applied to unlicensed spectrum, wherein the unlicensed spectrum can also be considered as shared spectrum; or, the communication system of the present application can also be applied to licensed spectrum, wherein the licensed spectrum can also be considered as unlicensed spectrum Shared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote station remote terminal
  • mobile device user terminal
  • terminal wireless communication device
  • wireless communication device user agent or user device
  • terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites, etc.) .
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • the network device can be a device used to communicate with the mobile device, and the network device can be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, or It is a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a network in a vehicle-mounted device, a wearable device, and an NR network Equipment or a base station (gNB) or network equipment in a future evolved PLMN network or network equipment in an NTN network.
  • Access Point Access Point
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • Evolutional Node B, eNB or eNodeB evolved base station
  • gNB NR network Equipment or a base station
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network equipment may be a satellite or a balloon station.
  • the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc.
  • the network device may also be a base station installed on land, water, and other locations.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • predefinition can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). Do limited. For example, pre-defined may refer to defined in the protocol.
  • side communication can be divided into network coverage inner communication, partial network coverage side communication and network coverage outer communication.
  • Fig. 1 to Fig. 5 are the system frameworks of the vehicle-mounted terminal to the vehicle-mounted terminal provided by the present application.
  • all terminals including terminal 1 and terminal 2 performing sideline communication are within the coverage of the network equipment, so all terminals can receive the configuration of the network equipment. Signaling, sidelink communication based on the same sidelink configuration.
  • some terminals performing lateral communication are located within the coverage of network equipment, and these terminals (ie, terminal 1) can receive configuration signaling from network equipment, and Sidewalk communication is performed according to the configuration of the network device.
  • the terminal outside the network coverage i.e. terminal 2 cannot receive the configuration signaling of the network equipment.
  • the terminal outside the network coverage will The information carried in the sidelink broadcast channel (Physical Sidelink Broadcast Channel, PSBCH) sent by the terminal in the terminal determines the sidelink configuration and performs sidelink communication.
  • PSBCH Physical Sidelink Broadcast Channel
  • all terminals including terminal 1 and terminal 2 performing side communication are located outside the network coverage, and all terminals perform side communication according to the side communication configuration determined by the pre-configuration information. communication.
  • Device-to-device communication is a sidelink (Sidelink, SL) transmission technology based on D2D.
  • SL Sidelink
  • the Internet of Vehicles system uses terminal-to-device direct communication. way, so it has higher spectral efficiency and lower transmission delay.
  • Two transmission modes are defined in 3GPP: first mode and second mode.
  • the transmission resources of the terminal are allocated by the network equipment, and the terminal sends data on the sidelink according to the resources allocated by the network equipment; the network equipment can allocate resources for a single transmission to the terminal, and can also allocate semi-static transmission resources for the terminal resource. As shown in FIG. 1 , the terminal is located within the coverage of the network, and the network allocates transmission resources for sidelink transmission to the terminal.
  • the terminal selects a resource from the resource pool for data transmission.
  • the terminal is located outside the coverage area of the cell, and the terminal independently selects transmission resources from the pre-configured resource pool for sidelink transmission; or as shown in Figure 1, the terminal independently selects transmission resources for sidelink transmission from the resource pool configured by the network transmission.
  • LTE-V2X broadcast transmission is supported, and in NR-V2X, unicast and multicast transmission are introduced.
  • Fig. 5 is a schematic diagram of unicast transmission provided by this application. As shown in FIG. 5 , unicast transmission is performed between terminal 1 and terminal 2 .
  • FIG. 6 is a schematic diagram of multicast transmission provided by this application. As shown in FIG. 6 , terminal 1, terminal 2, terminal 3 and terminal 4 form a communication group, wherein terminal 1 sends data, and other terminal devices in the group are receiving terminals.
  • the receiving end is any terminal around the sending end terminal.
  • Fig. 7 is a schematic diagram of broadcast transmission provided by the present application. As shown in FIG. 7 , terminal 1 is a transmitting terminal, and other terminals around it, terminal 2 to terminal 6 are all receiving terminals.
  • Fig. 8 is a schematic diagram of a lateral feedback provided by the present application.
  • the sending terminal sends sidelink data (including Physical Sidelink Control Channel (PSCCH) and Physical Sidelink Shared Channel (PSSCH) to the receiving terminal. )), the receiving terminal sends a Hybrid Automatic Repeat reQuest (HARQ) feedback information (including an Acknowledgment (ACK) or a Negative Acknowledgment (NACK)) to the transmitting terminal, and the transmitting terminal according to The feedback information of the terminal at the receiving end determines whether retransmission is required.
  • the HARQ feedback information is carried in a sidelink feedback channel, such as PSFCH.
  • the sidelink feedback may be activated or deactivated through pre-configuration information or network configuration information, or the sidelink feedback may be activated or deactivated through the transmitting end terminal. If the sidelink feedback is activated, the receiving terminal receives the sidelink data sent by the transmitting terminal, and feeds back ACK or NACK to the transmitting terminal according to the detection result, and the transmitting terminal decides to send retransmission data or new data according to the feedback information of the receiving terminal; If the sidelink feedback is deactivated, the receiving terminal does not need to send feedback information, and the transmitting terminal usually sends data in the form of blind retransmission. For example, the transmitting terminal repeats sending K times for each sidelink data, instead of receiving The end-terminal feedback information determines whether to send retransmission data.
  • PSFCH the sidelink feedback channel
  • HARQ-ACK Hybrid Automatic Repeat request Acknowledgment
  • AGC Automatic gain control
  • Fig. 9 is a schematic diagram of a PSFCH and PSCCH/PSSCH time slot structure provided by the present application.
  • a slot may include time-domain symbols occupied by PSFCH, PSCCH, and PSSCH.
  • the last symbol is used as a guard interval (Guard Period, GP)
  • the penultimate symbol is used for PSFCH transmission
  • the penultimate symbol data is the same as the data of the PSFCH symbol, which is used as AGC.
  • the penultimate symbol is also used as GP.
  • the data on the first symbol in the slot is the same as the data on the second time domain symbol in the slot. It is usually used as AGC.
  • PSCCH occupies 3 time domain symbols. The remaining symbols can be used for PSSCH transmission. It should be understood that the figure only schematically shows the time-domain symbol information occupied by the PSFCH channel and the PSCCH/PSSCH channel in one time slot, and does not reflect the relationship between the frequency-domain resources occupied by different channels.
  • Fig. 10 is a schematic diagram of resources of a sidelink feedback channel provided by the present application.
  • the minimum time interval between the PSSCH and its associated PSFCH is 2 time slots. Therefore, the feedback information of the PSSCH transmitted in time slots 3, 4, 5, and 6 is all in the time slot 8, therefore, the time slot ⁇ 3, 4, 5, 6 ⁇ can be regarded as a time slot set, and the corresponding PSFCH of the PSSCH transmitted in the time slot set is in the same time slot. It should be understood that when a time slot includes the PSSCH and PSFCH, the time domain positions of the PSSCH and PSFCH are schematically shown in FIG. 10 , and the last GP symbol in the time slot is not shown.
  • the unlicensed spectrum is the spectrum allocated by the country and region that can be used for radio device communication.
  • This spectrum is usually considered a shared spectrum, that is, communication devices in different communication systems can be used as long as they meet the regulatory requirements set by the country or region on the spectrum. To use this spectrum, there is no need to apply to the government for exclusive spectrum authorization.
  • LBT Listen Before Talk
  • MCOT Maximum Channel Occupancy Time
  • This application studies the sidewalk transmission system based on unlicensed spectrum (called SL-U system).
  • Communication on unlicensed frequency bands usually needs to meet the corresponding regulatory requirements. For example, if the terminal wants to use unlicensed frequency bands for communication , the frequency band occupied by the terminal needs to be greater than or equal to 80% of the system bandwidth. Therefore, in order to allow as many users as possible to access channels within the same time period, this application introduces a resource allocation method based on interlace.
  • a comb tooth includes N RBs, and a total of M comb teeth are included in the frequency band.
  • the mth comb tooth includes ⁇ m, M+m, 2M+m, 3M+m,... ⁇ , for a certain comb
  • the tooth index which includes multiple resource blocks in the comb, is called an Interlaced Resource Block (IRB).
  • IRB Interlaced Resource Block
  • the number of resource blocks separated by two consecutive comb resource blocks in one comb is fixed at M, where the specific value of M is determined by the subcarrier spacing. For 15KHz subcarrier spacing, M is 10; and for 30KHz subcarrier spacing, M is 5.
  • M comb teeth can be orthogonally multiplexed in the frequency domain, and the indices of their comb teeth are 0 to M-1. .
  • one comb tooth includes multiple RBs, it can be replaced by one comb tooth resource including multiple RBs, or one comb tooth index including multiple RBs
  • FIG. 11 is an example of comb-based transmission resources provided by the embodiment of the present application.
  • each Comb teeth may include 6 RBs.
  • FIG. 12 and Figure 13 are schematic diagrams of comb-tooth-based frame structures provided by embodiments of the present application.
  • Figure 12 is a schematic diagram of a frame structure that includes only PSCCH and PSSCH and does not include PSFCH in a time slot
  • the system configures PSCCH to occupy one comb, and the time domain to occupy two OFDM symbols.
  • the same data on the second time domain symbol in the slot, usually used as AGC, and the last symbol is the GP symbol.
  • PSSCH1 occupies comb 0 and comb 1
  • its corresponding PSCCH1 occupies comb 0
  • the PSCCH and the PSSCH scheduled by the PSCCH have the same starting position in the frequency domain.
  • PSSCH2 occupies comb 2
  • its corresponding PSCCH2 also occupies comb 2.
  • one PSFCH occupies one comb tooth, such as PSFCH0 occupies comb tooth 0, and occupies two time domain symbols in the time domain, wherein, the data transmitted on the two time domain symbols
  • the data is the same, for example, the data on the first symbol is a repetition of the data on the second symbol, or, the data on the second symbol is a repetition of the data on the first symbol, and when the first symbol occupied by PSFCH A symbol before the domain symbol is a GP symbol, and a symbol after the last time domain symbol occupied by PSFCH is a GP symbol.
  • the data on the first time domain symbol shown in Figures 12 and 13 may be a repetition of the data on the second symbol, which is typically used as the AGC.
  • Fig. 12 and Fig. 13 are only examples of the present application and should not be construed as limiting the present application.
  • the frame structure shown may also involve the second-order side The resources occupied by Sidelink Control Information (SCI) and the resources occupied by PSCCH demodulation reference signal (Demodulation Reference Signal, DMRS) and PSSCH DMRS.
  • SCI Sidelink Control Information
  • DMRS Demodulation Reference Signal
  • an embodiment of the present application provides a wireless communication method, a first terminal device, and a second terminal device. By specifying the comb teeth used for PSFCH transmission, not only system performance but also resource utilization can be improved.
  • a resource pool can be configured on an unlicensed spectrum or a shared spectrum through pre-configuration information or network configuration information, and the resource pool can be used for sidelink transmission.
  • the resource pool includes M1 resource block sets (Resource Block Set, RB set), wherein one resource block set includes M2 resource blocks (Resource Block, RB), and M1 and M2 are positive integers.
  • a resource block set corresponds to a channel in the unlicensed spectrum (or shared spectrum), or a resource block set corresponds to the minimum frequency domain granularity for LBT, or a resource block set corresponds to an LBT subband .
  • the bandwidth corresponding to a channel on an unlicensed spectrum is 20MHz, that is, the bandwidth corresponding to a set of resource blocks is also 20MHz.
  • the set of resource blocks may also be called a channel or an LBT subband, which is not limited in the embodiment of the present application.
  • the starting position in the frequency domain of the resource pool is the same as the starting position in the frequency domain of the first resource block set in the M1 resource block sets, where the first resource block set may be A resource block set with the lowest frequency domain position among the M1 resource block sets.
  • the frequency domain end position of the resource pool is the same as the frequency domain end position of the second resource block set in the M1 resource block sets, wherein the second resource block set may be the A resource block set with the highest frequency domain position among the M1 resource block sets.
  • FIG. 14 is an example of a resource pool configured on an unlicensed spectrum provided by an embodiment of the present application.
  • the frequency domain position of resource block set 2 is the lowest, and the frequency domain position of resource block set 2 is the highest. Therefore, the frequency domain start position of the resource pool is the same as the frequency domain start position of resource block set 0, or the frequency domain start position of the resource pool Determined according to the start position of the frequency domain of resource block set 0; the end position of the frequency domain of the resource pool is the same as the end position of the frequency domain of resource block set 2, or the end position of the frequency domain of the resource pool is based on the frequency domain of resource block set 2 The end position is determined.
  • guard Band Guard Band
  • the frequency domain starting position and the frequency domain size of the guard frequency band may be determined according to preconfiguration information or network configuration information.
  • the terminal device obtains pre-configuration information or network configuration information, and the pre-configuration information or network configuration information is used to configure a guard band (Guard Band, GB).
  • guard bands are used to separate resource block sets RBset.
  • three guard bands are configured in the sideband bandwidth part (BWP), corresponding to guard band 0, guard band 1, and guard band 2, and these three guard bands are separated by four Resource block set, according to the starting position of the frequency domain of the side row BWP (that is, the starting point of the side row BWP shown in the figure) and the frequency domain start position of each guard band (that is, the starting point of the guard band shown in the figure) and the frequency domain size of the guard band (that is, the length of the guard band shown in the figure), the start position and end position of each resource block set in the frequency domain can be determined.
  • BWP sideband bandwidth part
  • the resource pool includes three resource block sets, that is, resource block set 0 to resource block set 2, the starting position of the resource pool in the frequency domain (that is, the starting point of the resource pool shown in the figure) corresponds to the resource block set 0 The starting position in the frequency domain of , and the ending position in the frequency domain of the resource pool (ie, the end point of the resource pool shown in the figure) correspond to the ending position in the frequency domain of resource block set 2 .
  • one resource block set includes multiple combs.
  • each resource block set in resource block set 0 to resource block set 2 may include multiple combs.
  • a PSSCH may be sent in one or more resource block sets.
  • one PSSCH may occupy transmission resources in one or more resource block sets.
  • one PSSCH may be sent in one or more resource block sets, and the one PSSCH occupies one or more combs in the one or more resource block sets.
  • the resource pool includes three resource block sets, namely, resource block set 0, resource block set 1, and resource block set 2; further, when the subcarrier spacing is 15 kHz, in one resource block
  • the set includes 100 RBs, corresponding to 10 comb teeth, that is, comb tooth 0 to comb tooth 9.
  • One PSSCH can be transmitted in one resource block set, and further, the one PSSCH can occupy part or all of resources corresponding to the comb teeth in one resource block set.
  • PSSCH 1 is sent in resource block set 0, and PSSCH 1 occupies resources corresponding to all combs in resource block set 0, that is, PSSCH 1 occupies resources corresponding to combs 0 to 9 in resource block set 0.
  • PSSCH 2 is sent in resource block set 1, and PSSCH 2 occupies resources corresponding to two combs in resource block set 1, for example, PSSCH 2 occupies resources corresponding to comb 0 and comb 1 in resource block set 1.
  • PSSCH 3 is sent in resource block set 1 and resource block set 2, and PSSCH 3 respectively occupies the resources corresponding to the three combs in the two resource block sets, for example, PSSCH 3 occupies resources in resource block set 1 and resource block set 2 respectively.
  • Comb 3, Comb 4, and Comb 5 resources are sent in resource block set 0 and PSSCH 1 occupies resources corresponding to all combs in resource block set 0 that is, PSSCH 1 occupies resources corresponding to combs 0 to 9 in resource block set 0.
  • PSSCH 2 is sent in resource block set 1
  • PSSCH 2 occupie
  • FIG. 15 is a schematic flowchart of a wireless communication method 200 provided by an embodiment of the present application.
  • the method 200 may be executed by the first terminal device.
  • the first terminal device may be a receiving end for receiving the PSSCH, for example, the first terminal device may be the terminal B mentioned above, and the first terminal device may also be the terminal A mentioned above.
  • the second time slot is determined according to the first time slot, and the first PSFCH carries sidelink feedback information in response to the first PSSCH.
  • a PSFCH transmission resource set is introduced based on the second time slot, and the first PSFCH corresponding to the first PSSCH received on the first time slot is designed as the first transmission determined in the PSFCH transmission resource set
  • the resource transmission on the one hand, enables the first terminal device to realize the transmission of the first PSFCH based on the first transmission resource, which improves the system performance; on the other hand, the PSFCH corresponding to the PSSCH on different time slots can be according to Multiplex transmission is performed on the same time slot in the same manner, which improves resource utilization.
  • the first PSFCH carries sidelink feedback information corresponding to the first PSSCH, and the sidelink feedback information includes ACK or NACK.
  • the frequency domain resource size of the first PSFCH is one physical resource block.
  • the first transmission resources involved in this application may include time domain resources, frequency domain resources, or code domain resources.
  • the second time slot may be determined according to the first time slot where the first PSSCH is located.
  • the first terminal device may determine the time slot where the first PSSCH is located based on the time slot where the first PSSCH is located and the minimum time interval between the PSSCH and the PSFCH.
  • the minimum time interval between PSSCH and PSFCH is k time slots, if the first terminal device receives the first PSSCH at time slot n, the time slot where the first PSFCH is located, that is, the second The time slot after n+k (including time slot n+k) is the first time slot including PSFCH transmission resources.
  • the first time unit includes, but is not limited to: a time domain time unit such as a frame, a subframe, a time slot, and a symbol.
  • the second time unit includes, but is not limited to: a time domain time unit such as a frame, a subframe, a time slot, and a symbol.
  • the first terminal device may receive the first physical sidelink channel in the first time unit, determine the first transmission resource in the transmission resource set used to transmit the feedback information included in the second time unit, and determine the first transmission resource in the second time unit.
  • the first physical sidelink channel may be a PSSCH.
  • the feedback information may be carried on a second physical sidelink channel, and the second physical sidelink channel may be a PSFCH.
  • the first time unit includes, but is not limited to: a time domain time unit such as a frame, a subframe, a time slot, and a symbol.
  • the second time unit includes, but is not limited to: a time domain time unit such as a frame, a subframe, a time slot, and a symbol.
  • the first PSSCH occupies at least one sub-channel (sub-channel); the S220 may include:
  • the first transmission resource set includes the first
  • the index information corresponding to the subchannel occupied by the first PSSCH includes at least one of the following information:
  • the number of subchannels occupied by the first PSSCH is the number of subchannels occupied by the first PSSCH.
  • one resource block set may include one or more subchannels, and each subchannel includes multiple RBs that are continuous in the frequency domain.
  • one resource pool may include multiple resource block sets, and one resource block set may include multiple subchannels; based on this, the first terminal
  • the device may transmit the PSFCH included in the second time slot based on the information of the resource block set where the first PSSCH is located and the index information corresponding to the subchannel occupied by the first PSSCH.
  • the resource set determine a first transmission resource set that can be used to transmit the first PSFCH.
  • the first transmission resource set includes frequency domain resources that can be used to transmit the first PSFCH and code domain resources that can be used to transmit the first PSFCH.
  • the frequency domain resources available for transmitting the first PSFCH are determined according to information about a resource block set where the first PSSCH is located and/or index information corresponding to a subchannel occupied by the first PSSCH.
  • the set of resource blocks where the first PSSCH is located includes at least one first set of resource blocks, and the first set of transmission resources includes at least one second set of resource blocks, wherein the at least one second resource The block set is determined according to the information of the at least one first resource block set.
  • a resource pool may include multiple resource block sets, and the transmission resource of the first PSSCH may occupy one or more resource block sets; therefore, when the first terminal device determines the first transmission resource, it may be based on At least one first resource block set occupied by the first PSSCH, in the PSFCH transmission resource set included in the second time slot, at least one second resource block set corresponding to the at least one first resource block set is determined Further, frequency domain resources and corresponding code domain resources corresponding to the first PSFCH may be determined in the at least one second resource block set.
  • PSFCH transmission resources can be configured in two ways:
  • Each resource block set in the B resource block sets is configured with a corresponding PSFCH transmission resource, optionally, the PSFCH transmission resource includes a physical resource block that can be used to transmit PSFCH; optionally, for the The PSFCH transmission resources configured for each resource block set in the B resource block sets are the same.
  • the first terminal device may determine at least Information about a second set of resource blocks. Further, the first terminal device may determine, according to index information corresponding to subchannels occupied by the first PSSCH in the at least one set of first resource blocks, that the corresponding at least one second resource block Information about the physical resource blocks within the block set.
  • the first terminal device determines the transmission resource of the first PSFCH according to the transmission resource of the first PSSCH, it may according to the information of at least one first resource block set where the first PSSCH is located and The index information corresponding to the subchannel occupied by the first PSSCH determines the information of the corresponding physical resource block in the physical resource block set available for PSFCH transmission.
  • the parameter sl-PSFCH-RB-Set in the resource pool configuration information is used to configure a physical resource block set that can be used to transmit PSFCH.
  • each resource block set has its corresponding parameter sl-PSFCH-RB-Set, or the resource pool configuration information only includes one parameter sl-PSFCH-RB-Set, but the physical A resource block set is applicable to each of the B resource block sets.
  • mode 2 only one parameter sl-PSFCH-RB-Set is included in the resource pool configuration information, and the corresponding PSFCH transmission resources of the PSSCH transmitted in the A resource block sets are located in the parameter sl-PSFCH-RB-Set In the set of physical resource blocks indicated by Set.
  • the above two methods are about how to determine the frequency domain resources in the transmission resources of the first PSFCH, including resource block sets or physical resource blocks; further, the first terminal device can also be based on The supported code domain resource information (or cyclic shift pair information) determines the first set of transmission resources (a transmission resource includes frequency domain resources and code domain resources), and then, the first terminal device can use Determine specific transmission resources in the first transmission resource set.
  • the supported code domain resource information or cyclic shift pair information
  • the method 200 may further include:
  • the index information corresponding to the at least one first resource block set includes at least one of the following information:
  • the number of resource block sets included in the at least one first resource block set is the number of resource block sets included in the at least one first resource block set.
  • the transmission resources included in the first transmission resource set are indexed in the following order:
  • Indexing is performed first according to frequency domain resources, and then according to code domain resources.
  • Fig. 16 is an example of an index of a set of transmission resources that can be used to transmit PSFCH provided by the embodiment of the present application.
  • N total N f ⁇ N CS , that is, N f frequency domain resources are included, and the indexes of the N f frequency domain resources
  • the range is 0, 1, ..., N f -1
  • each frequency domain resource in the N f frequency domain resources supports N CS cyclic shift pairs, and the range of index values of N CS cyclic shift pairs If it is: 0, 1, ..., N CS -1, then the resource index order of transmission resources in the first transmission resource set from low to high corresponds to indexing from low to high in frequency domain resources first and then in accordance with cyclic shift Bit pairs are indexed from low to high.
  • the cyclic shift pairs involved in this application may also be referred to as code domain resources.
  • performing indexing according to frequency domain resources first includes: first performing indexing according to the sequence of resource block set indexes from low to high, and then performing indexing according to the sequence of physical resource block indexes from low to high; or; First perform indexing according to the order of physical resource block indexes from low to high, and then perform indexing according to the order of resource block set indexes from low to high.
  • the Nf frequency domain resources may be physical resource blocks obtained by first indexing the resource block set indexes from low to high, and then indexing the physical resource block indexes from low to high; or
  • the N f frequency domain resources may be physical resource blocks obtained by first indexing the physical resource block indexes from low to high, and then indexing the resource block set indexes from low to high.
  • N CS may represent the number of cyclic shift pairs supported by one resource block.
  • the method 200 may also include:
  • the first terminal device may be based on the identification information of the transmitting end of the first PSFCH (corresponding to the receiving end of the first PSSCH) and the receiving end of the first PSFCH (corresponding to the receiving end of the first PSSCH The identification information of the sender), and determine the first transmission resource in the first transmission resource set that can be used to transmit the first PSFCH.
  • the index of the first transmission resource is determined in the first transmission resource set according to the following formula:
  • S represents the index of the first transmission resource
  • P ID represents the identity of the second terminal device
  • M ID represents the identity of the first terminal device
  • N total represents the number of resources included in the first transmission resource set.
  • the number of PSFCH transmission resources, mod means modulo operation.
  • the identification information of the first terminal device is determined according to the member identification of the first terminal device in the communication group; or the identification information of the first terminal device is 0.
  • the identification information of the first terminal device is a member identification of the first terminal device in a communication group.
  • the identification information of the first terminal device is determined according to the member ID (member identity) of the first terminal device in the communication group; For multicast communication, and the first terminal device only feeds back NACK (that is, NACK-only feedback mode), the identification information of the first terminal device is 0; for unicast communication, the identification information of the first terminal device information is 0.
  • the identification information of the first terminal device may also be set to other values, which is not limited in this application.
  • the identification information of the second terminal device is determined according to the source identification information carried in the sidelink control information SCI corresponding to the first PSSCH.
  • the identification information of the second terminal device is the source identification information carried in the sidelink control information SCI corresponding to the first PSSCH.
  • the identification information of the second terminal device is determined according to the source identification information carried in the SCI associated with the first PSSCH, and the identification information of the first terminal device is determined according to the group of the first terminal device The member identification information is determined, or the identification information of the first terminal device is 0.
  • the first PSSCH occupies at least one first comb tooth; the S220 may include:
  • the second transmission resource set includes the first transmission resource.
  • one resource block set may include one or more combs, and each comb includes multiple discrete RBs in the frequency domain.
  • a resource pool may include multiple resource block sets, and a resource block set may include one or more comb teeth; based on this, the When the first terminal device determines the first transmission resource, based on at least one of the following information, in the set of PSFCH transmission resources included in the second time slot, determine the second Transport resource collection:
  • the number of comb teeth included in the PSFCH slot is the number of comb teeth included in the PSFCH slot.
  • the second set of transmission resources may include frequency domain resources and code domain resources
  • the frequency domain resources of the second set of transmission resources may include a set of resource blocks available for transmitting the first PSFCH and a set of resource blocks available for transmitting the Comb teeth of the first PSFCH.
  • the combs available for transmitting the first PSFCH may be combs in the resource block set available for transmitting the first PSFCH.
  • the code domain resources of the second transmission resource set may include code domain resources available for transmission of the first PSFCH within a comb or code domain resources available for transmission of the first PSFCH within a resource block.
  • the code domain resources of the second transmission resource set may include a code domain resource that can be used to transmit the first PSFCH in the comb teeth that can be used to transmit the first PSFCH, or the second transmission resource set
  • the code domain resource may include a code domain resource that can be used to transmit the first PSFCH within a resource block that can be used to transmit the first PSFCH.
  • the information used to determine the frequency domain resources of the second resource set may include: information used to determine the resource block set that can be used to transmit the first PSFCH, and comb teeth that can be used to transmit the first PSFCH
  • the information used to determine the code domain resources of the second transmission resource set may include: information used to determine the code domain resources that can be used to transmit the first PSFCH within one comb or one resource block.
  • the information of the at least one first comb tooth includes at least one of the following information:
  • the number of comb teeth included in the at least one first comb tooth is the number of comb teeth included in the at least one first comb tooth.
  • the transmission resources included in the second transmission resource set are indexed in the following order:
  • Indexing is performed first according to frequency domain resources, and then according to code domain resources.
  • N total N f ⁇ N CS , that is, N f frequency domain resources are included, and the indexes of the N f frequency domain resources
  • the range of is 0, 1,..., N f -1
  • each of the N f frequency domain resources (including a comb or a physical resource block) supports N CS cyclic shift pairs
  • N The range of index values of CS cyclic shift pairs is: 0, 1, ..., N CS -1, then the resource index order of the transmission resources in the second transmission resource set from low to high corresponds to firstly according to the frequency domain Resources are indexed from low to high and then indexed from low to high according to the cyclic shift.
  • the cyclic shift pairs involved in this application may also be referred to as code domain resources.
  • performing indexing according to frequency domain resources first includes: first performing indexing according to the order of resource block set indexes from low to high, and then performing indexing according to the order of comb-tooth indexes from low to high; or; first Indexing is performed in the order of the comb index from low to high, and then indexing is performed in the order of the resource block set index from low to high.
  • the N f frequency domain resources can be obtained by first indexing the resource block set index from low to high, and then indexing according to the comb index from low to high. or; the N f frequency domain resources may be comb teeth obtained by first indexing according to the order of the comb index from low to high, and then indexing according to the order of the resource block set index from low to high.
  • the set of resource blocks where the first PSSCH is located includes at least one third set of resource blocks
  • the second set of transmission resources includes at least one set of fourth resource blocks, wherein the at least one fourth resource The block set is determined according to the information of the at least one third resource block set.
  • a resource pool may include multiple resource block sets, and a resource block set may include one or more comb teeth; based on this, the first terminal device determines the second transmission resource, according to at least one third resource block set occupied by the first PSSCH, in the PSFCH transmission resource set included in the second time slot, determine the At least one fourth resource block set corresponding to at least one third resource block set; further, the first terminal device may determine at least one fourth resource block set that can be used to transmit the first PSFCH in the at least one fourth resource block set Two comb teeth and corresponding code domain resources.
  • the code domain resource involved in this application may be a code domain resource supported based on a resource block, or a code domain resource supported within a comb tooth, which is not limited in this application.
  • the method 200 may also include:
  • the number of resource block sets included in the at least one third resource block set is the number of resource block sets included in the at least one third resource block set.
  • the second set of transmission resources includes at least one second comb, and the second comb is determined according to at least one of the following information:
  • the number of comb teeth included in the PSFCH slot is the number of comb teeth included in the PSFCH slot.
  • the at least one second comb may be determined in the PSFCH transmission resource set according to the information of the at least one first comb.
  • the comb teeth occupied by the first PSSCH may correspond to the comb teeth of the first PSFCH, that is, the The comb teeth where the transmission resources of the first PSSCH are located may correspond to the comb teeth where the transmission resources of the first PSFCH are located. That is to say, the comb tooth where the transmission resource of the first PSFCH is located may be determined according to the comb tooth where the transmission resource of the first PSSCH is located.
  • the comb tooth where the transmission resource of the first PSFCH is located may be determined according to the index of the comb tooth corresponding to the frequency domain starting position of the transmission resource of the first PSSCH, or, the transmission resource of the first PSFCH The comb where it is located may be determined according to the indexes of all the combs corresponding to the transmission resource of the first PSSCH.
  • the second transmission resource set includes the at least one second comb in each fourth resource block set in at least one fourth resource block set.
  • the information of the at least one first comb tooth includes at least one of the following:
  • the information of the at least one first comb tooth may also be called the information of the first comb tooth occupied by the first PSSCH; that is to say, the information of the at least one first comb tooth includes at least one of the following :
  • the index of the at least one second comb tooth may be determined according to the index of the first first comb tooth in the at least one first comb tooth.
  • the first PSSCH occupies comb tooth 0 and comb tooth 1
  • the index of the at least one second comb tooth is determined according to comb tooth 0, for example, the first one of the at least one first comb tooth
  • the index of the comb tooth is determined as the index of the at least one second comb tooth, that is, the index of the at least one second comb tooth is comb tooth 0.
  • the index of the at least one second comb tooth may be determined according to the indexes of all the comb teeth in the at least one first comb tooth.
  • the first PSSCH occupies comb tooth 0 and comb tooth 1
  • the index of the at least one second comb tooth is determined according to comb tooth 0 and comb tooth 1, for example, all of the at least one first comb tooth
  • the index of the comb tooth is determined as the index of the at least one second comb tooth, that is, the index of the at least one second comb tooth includes comb tooth 0 and comb tooth 1 .
  • the first PSSCH occupies N 1 comb teeth
  • the PSSCH resource pool includes N 4 combs
  • the PSFCH slot includes N 5 combs
  • N 4 K 1 ⁇ N 5
  • K 1 is a positive integer
  • the second comb resource for transmitting the PSFCH can be determined in combination with the above information based on the first comb occupied by the PSSCH.
  • the number of comb teeth N 4 included in the PSSCH resource pool is determined through the resource pool configuration information, and the number of comb teeth N 5 included in the PSFCH time slot is determined.
  • N 4 is an integer multiple of N 5
  • N 5 is an integer multiple of N 4 . That is, the number of comb teeth in the PSSCH resource pool configured by the resource pool configuration information can be divisible by the number of comb teeth included in the PSFCH time slot, or the number of comb teeth included in the PSFCH time slot configured by the resource pool configuration information can be divided by the number of comb teeth in the PSSCH resource pool. The number of teeth is evenly divisible.
  • the combs included in the PSSCH resource pool have a corresponding relationship with the combs in the PSFCH time slot.
  • the combs in the resource pool where the PSSCH is located have a corresponding relationship with the combs used to transmit the PSFCH.
  • a comb tooth of the resource pool where the PSSCH is located may correspond to a comb tooth used to transmit PSFCH, or multiple comb teeth of the resource pool where the PSSCH is located may correspond to a comb tooth used for transmitting PSFCH, or, a comb tooth of the resource pool where the PSSCH is located
  • One comb may correspond to multiple combs for transmitting PSFCH.
  • the comb-tooth resource corresponding to the first PSFCH associated with the first PSSCH may be determined according to the comb-tooth resource occupied by the first PSSCH. For example, if the PSSCH resource pool is configured in the resource pool configuration information to include N 4 combs, the transmission resources available for PSFCH transmission in the PSFCH time slot include N 5 combs, and each comb in the PSSCH resource pool has its corresponding Comb teeth in the PSFCH time slot, if the first PSSCH occupies N 1 comb teeth, then N 3 comb teeth corresponding to the N 1 comb teeth in the PSFCH time slot can be determined, and the first PSSCH The associated transmission resources of the first PSFCH are located in the N 3 combs shown, where N 1 , N 3 , N 4 , and N 5 are positive integers.
  • comb tooth X of the PSSCH time slot corresponds to comb tooth Y in the PSFCH time slot, indicating the PSSCH transmitted on the comb tooth X of the PSSCH time slot, and the available transmission resources of the corresponding PSFCH include the PSFCH time slot Comb Y;
  • Comb X and Comb Y of the PSSCH slot correspond to Comb Z in the PSFCH slot, indicating that the PSSCH and/or comb Y transmitted on the PSSCH slot Comb X PSSCH, the available transmission resources of the corresponding PSFCH include the comb Z in the PSFCH slot;
  • the comb X in the PSSCH slot corresponds to the comb Y and Z in the PSFCH slot, which means that the comb in the PSSCH slot
  • the available transmission resources of the corresponding PSFCH include comb tooth Y and/or comb tooth Z in the PSFCH time slot; wherein, X, Y, and Z represent comb tooth indexes.
  • the first PSSCH may occupy N 1 comb teeth, and the size of N 1 is related to the transport block size corresponding to the first PSSCH carrying sidelink data.
  • the combs included in the PSSCH resource pool and the combs in the PSFCH time slot may have a one-to-one correspondence, or a many-to-one, or a one-to-many correspondence, which is not limited in this application.
  • the combs included in the PSSCH resource pool have a one-to-one correspondence with the combs in the PSFCH time slot.
  • FIG. 17 is an example of a one-to-one correspondence between the combs included in the PSSCH resource pool and the combs in the PSFCH time slot provided by the embodiment of the present application.
  • the PSSCH transmission resource includes time slot 7 to time slot 7 in the time domain.
  • Slot 10 includes comb 0 to comb 3 in the frequency domain;
  • PSFCH transmission resources include comb 0 to comb 3 in slot 12;
  • the PSFCH corresponding to the PSSCH sent in slot 7 to slot 10 is all in time Transmission is performed in slot 12, that is, the PSSCH slot associated with PSFCH slot 12 includes slot 7 to slot 10.
  • the figure only schematically shows that a time slot includes 4 comb teeth, and does not reflect that one comb corresponds to multiple discrete RBs in the frequency domain.
  • the comb-teeth resources shown in the figure are comb-teeth resources belonging to one resource block set.
  • the comb-teeth resources shown in the figure can be any resource block set Comb resources included in ; or, the comb resource structure in any resource block set in the resource pool is as shown in FIG. 17 .
  • the available transmission resources of the corresponding PSFCH include comb 0 of slot 12; for slot 7 to slot 10
  • the available transmission resources of the corresponding PSFCH include comb tooth 1 of slot 12; for the PSSCH in slot 7 to slot 10 and transmitted on comb tooth 2, its The available transmission resources of the corresponding PSFCH include comb 2 of slot 12; for the PSSCH transmitted on comb 3 in slot 7 to slot 10, the corresponding available transmission resources of PSFCH include comb of slot 12 tooth 3.
  • the second time slot is determined according to the first time slot where the first PSSCH is located; for example, it is assumed that the time slot where the transmission resource of the first PSSCH is located is from time slot 7 to For the time slot in time slot 10, the period P of PSFCH is set to 4 time slots, and the minimum time interval between PSSCH and PSFCH is 2 time slots, then the second time slot is time slot 12, which includes PSFCH transmission The slot of the resource is slot 12.
  • the comb teeth in each PSSCH time slot include comb teeth 0, comb teeth 1, comb teeth 2, and comb teeth 3
  • the PSFCH time slot (that is, the comb teeth corresponding to the second time slot) includes Comb tooth 0, comb tooth 1, comb tooth 2, and comb tooth 3.
  • the comb teeth in the PSSCH time slot and the comb teeth in the PSFCH time slot are in one-to-one correspondence.
  • the at least one first comb where the transmission resource of the first PSSCH is located includes comb 1
  • the at least one second comb may also include comb 1.
  • the combs included in the PSSCH resource pool and the combs in the PSFCH time slot have a many-to-one correspondence.
  • Fig. 18 is an example of a many-to-one correspondence between the combs included in the PSSCH resource pool and the combs in the PSFCH time slot provided by the embodiment of the present application.
  • the PSSCH transmission resource includes time slot 7 to time slot 7 in the time domain.
  • Slot 10 includes comb 0 to comb 3 in the frequency domain;
  • PSFCH transmission resources include comb 0 to comb 1 in slot 12;
  • the PSFCH corresponding to the PSSCH sent in slot 7 to slot 10 is all in time Transmission is performed in slot 12, that is, the PSSCH slot associated with PSFCH slot 12 includes slot 7 to slot 10.
  • the figure only schematically shows that a time slot includes 4 comb teeth, and does not reflect that one comb corresponds to multiple discrete RBs in the frequency domain.
  • the comb-teeth resources shown in the figure are comb-teeth resources belonging to one resource block set.
  • the comb-teeth resources shown in the figure can be any resource block set Comb resources included in ; or, the structure of comb resources in any resource block set in the resource pool is shown in FIG. 18 .
  • the available transmission resources of the corresponding PSFCH include comb 0 of time slot 12; for time slot For the PSSCH in slot 7 to slot 10 and transmitted on comb 2 and/or comb 3, the available transmission resources of the corresponding PSFCH include comb 1 of slot 12.
  • the second time slot is determined according to the first time slot where the first PSSCH is located; for example, it is assumed that the time slot where the transmission resource of the first PSSCH is located is from time slot 7 to For the time slot in time slot 10, the period P of PSFCH is set to 4 time slots, and the minimum time interval between PSSCH and PSFCH is 2 time slots, then the second time slot is time slot 12, which includes PSFCH transmission The slot of the resource is slot 12.
  • the set of PSFCH transmission resources (that is, the comb teeth corresponding to the second time slot) includes Comb 0 and comb 1, therefore, there is a many-to-one correspondence between the combs included in the PSSCH resource pool and the combs in the PSFCH time slot.
  • the at least one first comb where the transmission resource of the first PSSCH is located includes comb 0 and/or comb 1
  • the at least one second comb may include comb 0.
  • the combs included in the PSSCH resource pool and the combs in the PSFCH slot have a one-to-many correspondence.
  • FIG. 19 is an example of a one-to-many correspondence between the combs included in the PSSCH resource pool and the combs in the PSFCH time slot provided by the embodiment of the present application.
  • the PSSCH transmission resources include slots 7 to 7 in the time domain.
  • Slot 10 includes comb 0 to comb 1 in the frequency domain;
  • PSFCH transmission resources include comb 0 to comb 3 in slot 12;
  • the PSFCH corresponding to the PSSCH sent in slot 7 to slot 10 is all in time Transmission is performed in slot 12, that is, the PSSCH slot associated with PSFCH slot 12 includes slot 7 to slot 10.
  • the figure only schematically shows that a time slot includes 4 comb teeth, and does not reflect that one comb corresponds to multiple discrete RBs in the frequency domain.
  • the comb-teeth resources shown in the figure are comb-teeth resources belonging to one resource block set.
  • the comb-teeth resources shown in the figure can be any resource block set Comb resources included in ; or, the comb resource structure in any resource block set in the resource pool is as shown in FIG. 19 .
  • the available transmission resources of the corresponding PSFCH include comb 0 and comb 1 of slot 12;
  • the available transmission resources of the corresponding PSFCH include comb 2 and comb 3 of slot 12 .
  • the second time slot is determined according to the first time slot where the first PSSCH is located; for example, it is assumed that the time slot where the transmission resource of the first PSSCH is located is from time slot 7 to For the time slot in time slot 10, the period P of PSFCH is set to 4 time slots, and the minimum time interval between PSSCH and PSFCH is 2 time slots, then the second time slot is time slot 12, which includes PSFCH transmission The slot of the resource is slot 12.
  • the comb teeth in each PSSCH time slot include comb teeth 0 and comb teeth 1
  • the PSFCH transmission resource set (that is, the comb teeth corresponding to the second time slot) includes comb teeth 0, comb teeth 1, Comb 2 and comb 3.
  • the combs included in the PSSCH resource pool and the combs in the PSFCH time slot have a one-to-many correspondence.
  • the at least one first comb where the transmission resource of the first PSSCH is located includes comb 0, then the at least one second comb may include comb 0 and comb 1.
  • the at least one second comb tooth is determined according to the at least one first comb tooth and the first time slot .
  • the PSSCH transmission resources include slots 7 to 7 in the time domain.
  • Slot 10 includes comb 0 to comb 1 in the frequency domain;
  • PSFCH transmission resources include comb 0 to comb 3 in slot 12;
  • the PSFCH corresponding to the PSSCH sent in slot 7 to slot 10 is all in time Transmission is performed in slot 12, that is, the PSSCH slot associated with PSFCH slot 12 includes slot 7 to slot 10.
  • the figure only schematically shows that a time slot includes 4 comb teeth, and does not reflect that one comb corresponds to multiple discrete RBs in the frequency domain.
  • the comb-teeth resources shown in the figure are comb-teeth resources belonging to one resource block set.
  • the comb-teeth resources shown in the figure can be any resource block set Comb resources included in ; or, the comb resource structure in any resource block set in the resource pool is as shown in FIG. 19 .
  • the PSSCHs transmitted in different PSSCH slots correspond to
  • the PSFCH transmission resources may correspond to different combs in the PSFCH time slot.
  • the corresponding PSFCH transmission resources include comb tooth 0 of time slot 12; for the PSSCH transmitted on comb tooth 1 of time slot 7, the corresponding PSFCH
  • the transmission resources of time slot 12 include comb 1; for the PSSCH transmitted on time slot 8 on comb 0, the corresponding PSFCH transmission resources include time slot 12 on comb 2; for time slot 8 on comb 1
  • the corresponding PSFCH transmission resources include comb tooth 3 of time slot 12; for the PSSCH transmitted on slot 9 comb tooth 0, the corresponding PSFCH transmission resources include comb tooth 0 of time slot 12;
  • the corresponding PSFCH transmission resources include comb tooth 1 of time slot 12; for the PSSCH transmitted on comb tooth 0 of time slot 10, the corresponding PSFCH transmission resources include time comb tooth 2 of slot 12; for the PSSCH transmitted on comb tooth 1 of time slot 10, the corresponding PSFCH transmission resource includes comb tooth 3 of
  • the corresponding PSFCH transmission resources correspond to different comb teeth in time slot 12, that is, the PSFCH corresponding to the PSSCH transmitted on time slot 7 and time slot 8 is in Frequency division multiplexing in time slot 12;
  • the corresponding PSFCH transmission resources correspond to different comb teeth in time slot 12, that is, corresponding to the PSSCH transmitted on time slot 9 and time slot 10
  • the PSFCH is frequency division multiplexed in slot 12.
  • the corresponding PSFCH transmission resources correspond to the same comb in slot 12, and further, different code domains can be determined in the same comb Resource collection, so that the transmission resources of the PSFCH corresponding to the PSSCH transmitted on the same comb in time slot 7 and time slot 9 are code-division multiplexed in time slot 12;
  • PSSCH its corresponding PSFCH transmission resource corresponds to the same comb in time slot 12, and further, different code domain resource sets can be determined in the same comb, so as to realize the same comb of time slot 8 and time slot 10
  • the transmission resource of the PSFCH corresponding to the transmitted PSSCH is code-division multiplexed in the time slot 12 .
  • the PSFCH transmission resources corresponding to the PSSCHs sent in different PSSCH slots can be frequency-division multiplexed or code-division multiplexed in the PSFCH slot. According to the information of the time slot where the PSSCH is located and the information of the comb teeth occupied by the PSSCH, the comb tooth resource of the corresponding PSFCH in the PSFCH time slot can be determined.
  • Fig. 17 to Fig. 19 are only examples of the present application, and should not be construed as limiting the present application.
  • one comb tooth in Figures 17 to 19 includes one RB, but in actual implementation, the multiple RBs included in one comb tooth should be evenly distributed in the frequency domain, and this application will not repeat them here.
  • Figures 17 to 19 show an example in which the frequency domain resources in a time slot include 4 or 2 comb teeth, but in other alternative embodiments, the frequency domain resources in a time slot may also include other numbers comb teeth.
  • Figure 17 shows that a comb where the PSSCH transmission resource is located corresponds to a comb in the PSFCH time slot, that is, the comb where the PSFCH transmission resource is located and the comb where the PSSCH transmission resource is located have a one-to-one correspondence, but In other alternative embodiments, it may also be a one-to-many or many-to-one relationship, which is not specifically limited in the present application.
  • Figure 18 shows that the two combs where the PSSCH transmission resource is located correspond to one comb in the PSFCH time slot, that is, one comb where the PSFCH transmission resource is located corresponds to the two combs where the PSSCH transmission resource is located.
  • Figure 19 shows that one comb where the PSSCH transmission resource is located corresponds to two comb teeth in the PSFCH time slot, that is, the two comb teeth where the PSFCH transmission resource is located correspond to one comb tooth where the PSSCH transmission resource is located.
  • the second set of transmission resources includes a first set of code domain resources, and the first set of code domain resources is determined according to at least one of the following information:
  • the number of comb teeth included in the PSFCH slot is the number of comb teeth included in the PSFCH slot.
  • the first set of code domain resources may be a set of code domain resources corresponding to a comb (for example, a comb used to transmit the PSSCH).
  • the first code domain resource set includes code domain resources corresponding to one first comb among the at least one first comb and one second comb.
  • the first set of code domain resources includes code domain resources corresponding to one first comb in the PSSCH time slot and one second comb in the PSFCH time slot.
  • the first code domain resource set includes the first A first comb in the time slot corresponds to a code domain resource in a second comb in the second time slot.
  • the comb tooth where the first PSSCH is located is at least one first comb tooth
  • the comb tooth where the first PSFCH is located is at least one second comb tooth
  • the first code domain resource set includes the A code domain resource corresponding to one first comb among the at least one first comb in the one second comb.
  • the transmission resource available for transmitting the first PSFCH is a second transmission resource set
  • the second transmission resource set includes at least one fourth resource block set
  • the first code domain resource set is A code-domain resource set corresponding to one comb in the at least one fourth resource block set.
  • the first set of code domain resources may be a set of code domain resources corresponding to a time slot (for example, a time slot used to transmit the PSSCH).
  • the first PSSCH occupies at least one first comb in at least one third resource block set
  • the first PSFCH occupies at least one second comb in at least one fourth resource block set
  • the first set of code domain resources includes the code domain resources corresponding to the first time slot in one second comb of the at least one second comb; in other words, the first set of code domain resources includes all The code domain resources corresponding to the first time slot where the first PSSCH is located in a second comb tooth in the PSFCH time slot; that is, if the time slot where the first PSSCH is located is the first time slot, the The time slot where the first PSFCH is located is the second time slot, then the first code domain resource set includes the code domain resources corresponding to the first time slot in a second comb in the second time slot .
  • the first PSSCH occupies at least one first resource block in at least one first comb in at least one third resource block set
  • the first PSFCH occupies at least one of at least one fourth resource block set.
  • At least one second resource block in a second comb then the first code domain resource set includes the code corresponding to the first time slot in a second resource block in the at least one second resource block
  • the first set of code domain resources includes code domain resources corresponding to a second resource block in the PSFCH time slot of the first time slot where the first PSSCH is located; that is to say, if the The time slot where the first PSSCH is located is the first time slot, and the time slot where the first PSFCH is located is the second time slot, then the first code domain resource set includes the first time slot in the second time slot A code domain resource corresponding to a second resource block in the time slot.
  • the first set of code-domain resources may be a set of code-domain resources corresponding to a resource block (for example, a resource block in a comb used to transmit the PSSCH).
  • a resource block for example, a resource block in a comb used to transmit the PSSCH.
  • the first PSSCH occupies at least one first resource block in at least one first comb in at least one third resource block set
  • the first PSFCH occupies at least one of at least one fourth resource block set.
  • At least one second resource block in a second comb then the first code domain resource set includes a code domain corresponding to a first resource block in a second resource block in the at least one first resource block resource.
  • the first set of code domain resources includes code domain resources corresponding to one first resource block in the PSSCH time slot and one second resource block in the PSFCH time slot.
  • the first code domain resource set includes the first A code domain resource corresponding to a first resource block in a time slot in a second resource block in the second time slot.
  • the resource block where the first PSSCH is located is at least one first resource block
  • the resource block where the first PSFCH is located is at least one second resource block
  • the first code domain resource set includes the A code domain resource corresponding to one first resource block in the at least one first resource block in the one second resource block.
  • the transmission resource available for transmitting the first PSFCH is a second transmission resource set
  • the second transmission resource set includes at least one fourth resource block set
  • the first code domain resource set is A code-domain resource set of a resource block in a comb in the at least one fourth resource block set.
  • the first set of code-domain resources may be a set of code-domain resources corresponding to a comb, a time slot, or even a resource block, therefore, a transmission resource in the second set of transmission resources
  • the frequency domain resource and the code domain resource are definite; in other words, different transmission resources in the second transmission resource set have different code domain resources and/or different frequency domain resources, which means that this embodiment can support a
  • the PSFCH in the time slot of the PSFCH transmission resource corresponds to the PSSCH sent in P time slots, that is, this embodiment can support the PSFCH corresponding to the PSSCH of multiple time slots carried in one time slot, so as to implement the PSFCH in the time slot Frequency division multiplexing and/or code division multiplexing are performed on the PSFCH.
  • the number of code domain resources supported in one comb is determined according to pre-configuration information or network configuration information.
  • the number of code domain resources supported in one comb may be the number of code domain resources supported in a second comb, where the second comb is a comb used to transmit PSFCH.
  • the number of code domain resources supported in the one comb may be The number of code field resources supported.
  • the transmission resource available for transmitting the first PSFCH is a second transmission resource set, and the second transmission resource set includes at least one fourth resource block set, then the codes supported in the one comb
  • the number of domain resources may be the number of code domain resources supported in one comb in the at least one fourth resource block set.
  • the code-domain resource information supported by the one comb can be understood as the code-domain resource information supported in the second comb; wherein, the second comb is a comb used to transmit PSFCH,
  • the code domain resource information may include index information of the code domain resource, such as an index number or an index value.
  • the code domain resource information supported by the one comb may be the code supported by one of the at least one second comb Domain resource information.
  • the transmission resource available for transmitting the first PSFCH is a second transmission resource set, and the second transmission resource set includes at least one fourth resource block set, the code field supported by the one comb
  • the resource information may be code domain resource information supported by one comb in the at least one fourth resource block set.
  • the number of code domain resources supported in the one resource block is determined according to pre-configuration information or network configuration information.
  • the number of code domain resources supported in one resource block can be understood as the number of code domain resources supported in one resource block of the at least one second comb; wherein, the second comb are comb teeth used to transmit PSFCH.
  • the number of code domain resources supported in the one resource block may be in one second comb of the at least one second comb The number of code domain resources supported in one resource block of .
  • the transmission resource available for transmitting the first PSFCH is a second transmission resource set, and the second transmission resource set includes at least one fourth resource block set, then the supported codes in the one resource block
  • the number of domain resources may be the number of code domain resources supported in one resource block of one comb in the at least one fourth resource block set.
  • the code-domain resource information supported by the one resource block can be understood as the code-domain resource information supported in one resource block of the at least one second comb; wherein, the second comb is for The comb teeth of the PSFCH are transmitted, and the code domain resource information may include index information of the code domain resource, such as an index number or an index value.
  • the code domain resource information supported by the one comb may be one of the at least one second comb in the at least one second comb Code field resource information supported by the resource block.
  • the transmission resource available for transmitting the first PSFCH is a second transmission resource set, and the second transmission resource set includes at least one fourth resource block set, the code field supported by the one comb
  • the resource information may be code domain resource information supported by one resource block of one comb in the at least one fourth resource block set.
  • the first code domain resource set may be a code domain resource set corresponding to a comb tooth for transmitting PSSCH, a time slot for transmitting PSSCH, or a resource block for transmitting PSSCH
  • the first code domain resource set The number of code domain resources in the resource set may be the number of code domain resources corresponding to a time slot for transmitting PSSCH, or the number of code domain resources corresponding to a comb in a time slot for transmitting PSSCH, It may even be the number of code domain resources corresponding to one resource block in one comb in one time slot for transmitting the PSSCH.
  • the number of code domain resources in the first code domain resource set is determined according to the number of code domain resources supported in the one comb or the number of code domain resources supported in the one resource block.
  • the number of code domain resources in the first code domain resource set is based on one second comb in the at least one second comb
  • the number of code domain resources supported in the first code domain resource set is determined, or the number of code domain resources in the first code domain resource set is determined according to the internal support of a resource block in a second comb in the at least one second comb
  • the number of code domain resources is determined.
  • the number of code domain resources included in the first set of code domain resources is proportional to the number of code domain resources supported in the one comb or the number of code domain resources supported in the one resource block Proportional. For example, the greater the number of code domain resources supported in one comb or the number of code domain resources supported in one resource block, the greater the number of code domain resources included in the first set of code domain resources. big. For another example, the smaller the number of code domain resources supported in one comb or the number of code domain resources supported in one resource block, the number of code domain resources included in the first set of code domain resources smaller.
  • the number of code domain resources in the first code domain resource set is determined according to the following information: the number of code domain resources supported in the one comb or the code domain resources supported in the one resource block The number of periods of the PSFCH.
  • the first terminal device may determine the code domain supported by each time slot in the one comb in the PSFCH cycle according to the PSFCH cycle and the number of code domain resources supported in the one comb The number of code domain resources occupied by the resources or the code domain resources supported in the one resource block.
  • the number of code domain resources supported in one comb is N CS1
  • the period of the PSFCH is P
  • the number of code domain resources corresponding to each PSSCH time slot in the PSFCH period is N CS1 /P, that is, the number of code domain resources included in the first code domain resource set corresponding to the first time slot where the first PSSCH is located is N CS1 /P.
  • the number N CS1 of code domain resources supported in one comb and the period P of the PSFCH can be determined according to the resource pool configuration information, where N CS1 can be divisible by P. It should be understood that the above formula represents the situation when N CS1 is divisible by P. If it is not divisible, the above formula needs to be rounded up or rounded down, which is not limited in this application.
  • the number of code domain resources in the first code domain resource set is determined according to the following information: the number of code domain resources supported in the one comb or the code domain resources supported in the one resource block quantity, the period of the PSFCH, the number of comb teeth included in the PSSCH resource pool and the number of comb teeth included in the PSFCH time slot.
  • the number of code domain resources in the first set of code domain resources is (N CS1 /(P ⁇ K)), where N CS1 represents the number of code domain resources supported in one comb or the number of The number of code domain resources supported in a resource block, P represents the period of the PSFCH, K is determined according to N 4 and N 5 , N 4 represents the number of combs included in the PSSCH resource pool, and N 5 represents the PSFCH The number of comb teeth included in the slot.
  • K max(1,N 4 /N 5 ).
  • N 4 and N 5 may or may not be equal, and this application does not limit this.
  • the number of code domain resources included in the PSFCH transmission resource set corresponding to one comb in one PSSCH slot in the PSFCH slot is: (N 5 ⁇ N CS1 )/(N 4 ⁇ P). It should be understood that the above formula represents the situation when N 5 ⁇ N CS1 is divisible by N 4 ⁇ P, or the situation that N CS1 is divisible by (P ⁇ K 1 ).
  • the number of code domain resources included in the PSFCH transmission resource set corresponding to a comb in a PSSCH slot in a PSFCH slot is: N CS1 /(P ⁇ K 1 ) or (N 5 ⁇ N CS1 )/(N 4 ⁇ P); otherwise, the code domain resource included in the PSFCH transmission resource set corresponding to one comb in a PSSCH slot in the PSFCH slot
  • the quantity is: N CS1 /P.
  • the number of code domain resources included in the set may be: N CS1 /P.
  • N 4 is greater than N 5
  • the number of code domain resources included in the PSFCH transmission resource set corresponding to a comb in a PSSCH slot in a PSFCH slot is: (N 5 ⁇ N CS1 )/(N 4 P); Otherwise, the number of code domain resources included in the PSFCH transmission resource set corresponding to one comb in a PSFCH slot in a PSSCH slot is: N CS1 /P.
  • N 4 if N 4 is greater than N 5 , the number of code domain resources included in the PSFCH transmission resource set corresponding to a comb in a PSSCH slot in a PSFCH slot can be: (N 5 ⁇ N CS1 )/(N 4 ⁇ P); if N 4 is less than or equal to N 5 , the number of code domain resources included in the PSFCH transmission resource set corresponding to one comb in one PSSCH slot in the PSFCH slot can be: N CS1 /P.
  • the first PSSCH occupies at least one first comb in each third resource block set in at least one third resource block set
  • the time slot in which the first PSFCH is located is the second time slot slot
  • the second transmission resource set includes at least one second comb in each fourth resource block set in at least one fourth resource block set
  • the first code domain resource set is the at least one first comb
  • the block set, the quantity of the at least one second comb tooth, and the quantity of code domain resources included in the first code domain resource set are determined.
  • the number of transmission resources included in the PSFCH transmission set corresponding to the first PSSCH is: N 7 ⁇ N 3 ⁇ (N CS1 /(P ⁇ K)); where N 7 indicates the number of fourth resource block sets corresponding to the N 6 third resource block sets occupied by the first PSSCH, and N 3 indicates the number of N 1 first comb teeth corresponding to the first PSSCH occupied
  • the number of two comb teeth, K is determined according to N 4 and N 5
  • N 4 represents the number of comb teeth included in the PSSCH resource pool
  • N 5 represents the number of comb teeth included in the PSFCH time slot.
  • K max(1, N 4 /N 5 ).
  • the number of transmission resources included in the second transmission resource set may be: N 7 ⁇ N 3 ⁇ (N CS1 /(P ⁇ K)) or N 7 ⁇ N 3 ⁇ (N CS1 /P).
  • N 4 K 1 ⁇ N 5
  • K 1 is a positive integer
  • N 4 represents the number of combs included in the PSSCH resource pool
  • N 5 represents the number of combs included in the PSFCH time slot .
  • the number of combs included in the PSSCH resource pool is greater than the number of combs included in the PSFCH resource pool, that is, every K 1 first combs in the PSSCH resource pool correspond to a second comb in the PSFCH time slot , therefore, in the P PSSCH time slots corresponding to a PSFCH time slot, except that the transmission resources of the PSSCHs of different time slots in the corresponding PSFCH time slots need Code Division Multiplexing (Code Division Multiplexing, CDM), a PSSCH
  • CDM Code Division Multiplexing
  • the transmission resources of different comb teeth in the corresponding PSFCH time slots in the time slot also need to be code-division multiplexed, so as to realize the transmission of the PSFCH corresponding to the PSSCH of multiple time slots in a time slot through code division multiplexing.
  • the first terminal device may group the code domain resources supported in one comb according to the period of the PSFCH and K 1 to determine the number of code domain resources in the first set of code domain resources.
  • every two combs in the PSSCH slot correspond to one comb in the PSFCH slot, for example, comb 0 and comb 1 in the PSSCH slot correspond to the combs in the PSFCH slot.
  • Comb 0, that is, the PSSCH sent on comb 0 and/or comb 1 in the PSSCH time slot the corresponding PSFCH transmission resources include comb 0 in the PSFCH time slot; comb 2 and comb 1 in the PSSCH time slot
  • Comb 3 corresponds to comb 1 in the PSFCH time slot, that is, comb 2 in the PSSCH time slot and/or the PSSCH sent on comb 3
  • the corresponding PSFCH transmission resources include comb 1 in the PSFCH time slot.
  • N CS1 24
  • comb 0 in PSSCH slot 7 corresponds to the code domain resource [0,2] of comb 0 in PSFCH slot
  • comb 1 in PSSCH slot 7 corresponds to the code of comb 0 in PSFCH slot domain resource [3,5]
  • comb tooth 0 in PSSCH slot 8 corresponds to code domain resource [6,8] of comb tooth 0 in PSFCH slot
  • comb tooth 1 in PSSCH slot 8 corresponds to PSFCH slot
  • Comb 1 in slot 10 corresponds to the code domain resources of comb 0 in PSFCH slot [21,23].
  • comb tooth 2 in PSSCH slot 7 corresponds to the code domain resource [0,2] of comb tooth 1 in PSFCH slot
  • comb tooth 3 in PSSCH slot 7 corresponds to comb tooth 1 in PSFCH slot Code domain resource [3,5]
  • Comb 2 in PSSCH slot 8 corresponds to code domain resource [6,8] of comb 1 in PSFCH slot
  • comb 3 in PSSCH slot 8 corresponds to PSFCH slot
  • the comb Y in the PSSCH slot X corresponds to the code domain resources [A, B] of the comb Z in the PSFCH slot, indicating that the comb in the PSSCH slot X
  • the available transmission resources of the corresponding PSFCH include comb tooth Z in the PSFCH time slot
  • the available code domain resources of the corresponding PSFCH include the code domain resources in the code domain resource set [A, B] , where X represents the slot index, Y and Z represent the comb index, and A and B represent the index of the code domain resource.
  • comb tooth 0 and comb tooth 1 in time slot 7 to time slot 10 can be respectively corresponded to the 24 code domain resources of comb tooth 0 in time slot 12, and time slot 7 to time slot Comb 2 and comb 3 in 10 correspond to the 24 code domain resources of comb 1 in time slot 12 respectively, which can realize the PSSCH correspondence of transmitting multiple time slots in one time slot by means of code division multiplexing PSFCH.
  • N 5 K 2 ⁇ N 4
  • K 2 is a positive integer
  • N 4 represents the number of combs included in the PSSCH resource pool
  • N 5 represents the number of combs included in the PSFCH time slot .
  • the number of combs included in the PSSCH resource pool is less than the number of combs included in the PSFCH time slot, that is, one comb in the PSSCH resource pool corresponds to K 2 combs in the PSFCH time slot, therefore,
  • the transmission resources in the PSFCH time slots corresponding to the PSSCHs of different time slots can be code-division multiplexed (CDM), which can realize the transmission in a time slot through code division multiplexing
  • CDM code-division multiplexed
  • the transmission resource includes comb 2 and comb 3
  • one PSSCH comb corresponds to two PSFCH slot combs, for example, comb 0 in a PSSCH slot corresponds to comb 0 and comb 1 in a PSFCH slot; PSSCH Comb 1 in the time slot corresponds to comb 2 and comb 3 in the PSFCH time slot.
  • N CS1 24
  • comb 0 in PSSCH slot 7 corresponds to the code domain resource [0,5] of comb 0 and the code domain resource [0,5] of comb 1 in PSFCH slot;
  • the comb 0 in PSSCH slot 8 Tooth 0 corresponds to the code domain resource [6,11] of comb tooth 0 in PSFCH slot and the code domain resource [6,11] of comb tooth 1;
  • comb tooth 0 in PSSCH slot 9 corresponds to the comb tooth in PSFCH slot
  • comb tooth 0 in PSSCH slot 10 corresponds to the code domain resource of comb tooth 0 in PSFCH slot [18, 23] and the code domain resources of comb 1 [18,23].
  • comb tooth 1 in PSSCH slot 7 corresponds to the code domain resources [0,5] of comb tooth 2 and comb tooth 3 in PSFCH slot;
  • Comb 1 corresponds to the code domain resource [6,11] of comb 2 and comb 3 in the PSFCH slot;
  • comb 1 in PSSCH slot 9 corresponds to the code domain resource [6,11] of comb 3 in the PSFCH slot.
  • comb tooth 1 in PSSCH slot 10 corresponds to comb tooth 2 code domain resource in PSFCH slot [18] ,23] and the code domain resources of comb 3 [18,23].
  • the comb Y in the PSSCH slot X corresponds to the code domain resource [A, B] of the comb Z and the code domain resource [C, B] of the comb Q in the PSFCH slot.
  • the available transmission resources of the corresponding PSFCH include comb Z and comb Q in the PSFCH slot, and the corresponding available codes of the PSFCH
  • the domain resources include the code domain resources in the code domain resource set [A, B] of the comb tooth Z and the code domain resources in the code domain resource set [C, D] of the comb tooth Q, where X represents the slot index and Y , Z, Q represent the comb index, A, B, C, D represent the index of the code domain resource.
  • comb tooth 0 in time slot 7 to slot 10 can correspond to the 24 code domain resources of comb tooth 0 in time slot 12 and the 24 code domain resources of comb tooth 1 respectively.
  • Comb tooth 1 in time slot 7 to time slot 10 corresponds to the 24 code domain resources of comb tooth 2 and the 24 code domain resources of comb tooth 3 in time slot 12 respectively, which can achieve code division in one time slot
  • the PSFCH corresponding to the PSSCH of multiple time slots is transmitted in a multiplexing manner.
  • N 5 K 2 ⁇ N 4
  • K 2 is a positive integer
  • N 4 represents the number of comb teeth included in the PSSCH resource pool
  • N 5 represents the number of comb teeth included in the PSFCH time slot.
  • the corresponding PSFCH transmission resources include comb 0 in PSFCH slot 12; for the PSSCH transmitted on comb 1 in PSSCH slot 7, the corresponding PSFCH
  • the transmission resources of PSFCH include comb 1 in PSFCH slot 12; PSSCH transmitted on comb 0 in PSSCH slot 8, and the corresponding PSFCH transmission resources include comb 2 in PSFCH slot 12; PSSCH slot 8
  • the corresponding PSFCH transmission resources include comb 3 in PSFCH slot 12;
  • the corresponding PSFCH transmission resources include Comb 0 in PSFCH slot 12; PSSCH transmitted on comb 1 in PSSCH slot 9, the corresponding PSFCH transmission resources include comb 1 in PSFCH slot 12; comb in PSSCH slot 10
  • the corresponding PSFCH transmission resources include comb 2 in PSFCH slot 12; for the PSSCH transmitted on comb 1 in PSSCH slot 10, the corresponding PSFCH
  • the first terminal device can determine the number of code domain resources in the first code domain resource set according to the following information: PSFCH period, the number of comb teeth N 4 included in the PSSCH resource pool, and the number of comb teeth included in the PSFCH time slot Quantity N 5 .
  • N CS1 24
  • comb tooth 0 in PSSCH slot 9 corresponds to the code domain resource [12,23] of comb tooth 0 in PSFCH slot 12 ];
  • Comb 1 in PSSCH slot 9 corresponds to the code domain resources of comb 1 in PSFCH slot 12 [12,23];
  • Comb 0 in PSSCH slot 10 corresponds to comb in PSFCH slot 12
  • the PSSCH transmitted on the comb in time slot 7 and the PSFCH corresponding to the PSSCH transmitted on the comb in time slot 8 correspond to different combs in time slot 12, that is, frequency division multiplexing;
  • the PSSCH transmitted on the comb in slot 9 and the PSFCH corresponding to the PSSCH transmitted on the comb in slot 10 correspond to different combs in slot 12, that is, frequency division multiplexing;
  • the transmitted PSSCH and the PSFCH corresponding to the PSSCH transmitted on the comb in slot 9 correspond to the same comb in slot 12, but correspond to different code domain resources, that is, code division multiplexing;
  • the comb in slot 8 The PSSCH transmitted on the tooth and the PSFCH corresponding to the PSSCH transmitted on the comb in slot 10 correspond to the same comb in slot 12, but correspond to different code domain resources, that is, code division multiplexing.
  • the comb Y in the PSSCH slot X corresponds to the code domain resources [A, B] of the comb Q in the PSFCH slot Z, which means that in the PSSCH slot X
  • the available transmission resources of the corresponding PSFCH include the comb Q in the PSFCH slot Z
  • the available code domain resources of the corresponding PSFCH include the code domain resources in the code domain resource set [A, B] Code-domain resources, where X and Z represent time slot indexes, Y and Q represent comb-tooth indexes, and A and B represent indexes of code-domain resources.
  • the method 200 may also include:
  • the information of the at least one first comb tooth includes at least one of the following:
  • the code domain resource information supported by the one comb can be understood as Supported code field resource information.
  • the code domain resource information may be index information of the code domain resource, such as an index number or an index value.
  • the first terminal device may group the code domain resources supported in the one comb according to the period of the PSFCH, and determine the code domain resources corresponding to the code domain resources in the first code domain resource set during the grouping process Index information.
  • the code domain resource in each group corresponds to one PSSCH time slot among the P PSSCH time slots associated with the PSFCH time slot.
  • the first terminal device may determine index information corresponding to code domain resources in the first code domain resource set according to the following formula:
  • R represents the index of the code domain resources included in the first code domain resource set
  • N CS2 represents the number of code domain resources in the first code domain resource set
  • p represents the index of the first time slot
  • the value range of p is 0, 1, ..., P-1
  • P represents the period of the PSFCH.
  • p represents the p-th PSSCH slot among the P PSSCH slots corresponding to one PSFCH slot.
  • the value range of p may also be 1, 2, ..., P, which is not specifically limited in the present application.
  • the first PSSCH occupies at least one first comb; the first terminal device can determine the code in the first code domain resource set according to the period of PSFCH and the information of the at least one first comb. Index information corresponding to domain resources.
  • the first terminal device may determine index information corresponding to code domain resources in the first code domain resource set according to the following formula:
  • R f(P, I comb teeth , p, N CS2 );
  • R represents the index of the code domain resources included in the first code domain resource set
  • N CS2 represents the number of code domain resources in the first code domain resource set
  • p represents the index of the first time slot
  • the value range of p is 0, 1, ..., P-1, and P represents the period of the PSFCH.
  • p represents the p-th PSSCH slot among the P PSSCH slots corresponding to one PSFCH slot.
  • the value range of p may also be 1, 2, ..., P, which is not specifically limited in the present application.
  • the I comb tooth represents index information determined according to the at least one first comb tooth.
  • the PSFCH time slot includes 2 combs
  • K 1 2, that is, when the 2 combs in the PSSCH slot correspond to PSFCH A comb tooth in the gap.
  • N CS1 24
  • the index range of the corresponding code domain resources includes [0,23]
  • one of the PSSCH slots can be determined according to the period of the PSFCH.
  • comb 0 in PSSCH slot 7 corresponds to the code domain resource [0,2] of comb 0 in PSFCH slot
  • comb 1 in PSSCH slot 7 corresponds to the code of comb 0 in PSFCH slot domain resource [3,5]
  • comb tooth 0 in PSSCH slot 8 corresponds to code domain resource [6,8] of comb tooth 0 in PSFCH slot
  • comb tooth 1 in PSSCH slot 8 corresponds to PSFCH slot
  • Comb 1 in slot 10 corresponds to the code domain resources of comb 0 in PSFCH slot [21,23].
  • comb tooth 2 in PSSCH slot 7 corresponds to the code domain resource [0,2] of comb tooth 1 in PSFCH slot
  • comb tooth 3 in PSSCH slot 7 corresponds to comb tooth 1 in PSFCH slot Code domain resources [3, 5]
  • Comb 2 of PSSCH in slot 8 corresponds to code domain resources [6, 8] of comb 1 in PSFCH slot
  • comb 3 in PSSCH slot 8 corresponds to PSFCH slot
  • the index information corresponding to the code domain resource in the first code domain resource set is determined according to the information of the first comb occupied by the first PSSCH. For example, if the first comb tooth occupied by the first PSSCH includes comb tooth 0 in time slot 7, then the index information corresponding to the code domain resource in the corresponding first code domain resource set is [0,2]; if the first The first comb tooth occupied by PSSCH includes comb tooth 1 in time slot 7, then the index information corresponding to the code domain resources in the corresponding first code domain resource set is [3,5]; if the first comb tooth occupied by the first PSSCH Comb teeth include comb tooth 0 and comb tooth 1 in slot 7, and the index information corresponding to the code domain resource in the first code domain resource set corresponding to it is [0,5]; if the first comb tooth occupied by the first PSSCH Teeth include comb tooth 1 and comb tooth 2 in time slot 7, and the index information corresponding to the code domain resource in the first code domain resource set corresponding to it includes the
  • the comb Y in the PSSCH slot X corresponds to the code domain resources [A, B] of the comb Z in the PSFCH slot, indicating that the comb in the PSSCH slot X
  • the available transmission resources of the corresponding PSFCH include comb tooth Z in the PSFCH time slot
  • the available code domain resources of the corresponding PSFCH include the code domain resources in the code domain resource set [A, B] , where X represents the slot index, Y and Z represent the comb index, and A and B represent the index of the code domain resource.
  • the method 200 may also include:
  • the code-domain resource information supported by the one comb tooth or the code-domain resource information supported by the one resource block is acquired.
  • the code-domain resource information supported by the one comb tooth or the code-domain resource information supported by the one resource block is acquired through pre-configuration information or network configuration information.
  • the first terminal device may acquire the code domain resource information supported by the one comb tooth or the code domain resource information supported by the one resource block according to the preconfiguration information or the resource pool configuration information in the network configuration information.
  • the resource pool configuration information includes indication information for indicating the cyclic shift pairs supported by one comb, and the indication information can represent the code domain resource information supported by the one comb.
  • the method 200 may also include:
  • the correspondence may include at least one code domain resource, index information of each code domain resource in the at least one code domain resource, and the number of code domain resources supported in one comb.
  • the code domain resource may be represented by a cyclic shift pair.
  • the index information of the code domain resource may also be referred to as an index of a cyclic shift pair.
  • the number of code domain resources supported in one comb may also be understood as the number of cyclic shift pairs supported in one comb.
  • the first code domain resource in the first code domain resource set includes a first cyclic shift pair, and the first cyclic shift value in the first cyclic shift pair is based on the first The index information of the code domain resource is determined; the second cyclic shift value in the first cyclic shift pair is determined according to the first cyclic shift value and the maximum number of cyclic shift pairs supported in one comb, where , the maximum number of cyclic shift pairs supported in one comb is determined according to the maximum number of code domain resources supported in one comb; or, the second cyclic shift value is determined according to the first cyclic shift value and the maximum number of cyclic shift pairs supported in one resource block, wherein the maximum number of cyclic shift pairs supported in one resource block is determined according to the maximum number of code domain resources supported in one resource block.
  • the maximum number of cyclic shift pairs supported in one comb is equal to the maximum number of code domain resources supported in one comb. In some implementation manners, the maximum number of cyclic shift pairs supported in one comb is determined according to pre-definition, pre-configuration information or network configuration information. In some implementation manners, the maximum number of code domain resources supported in one comb is determined according to pre-definition, pre-configuration information or network configuration information.
  • the maximum number of cyclic shift pairs supported in the one resource block is equal to the maximum number of code domain resources supported in the one resource block. In some implementation manners, the maximum number of cyclic shift pairs supported in one resource block is determined according to pre-definition, pre-configuration information or network configuration information. In some implementation manners, the maximum number of code domain resources supported in the one resource block is determined according to pre-definition, pre-configuration information or network configuration information.
  • the first cyclic shift value in the first cyclic shift pair is determined according to the index information of the first code domain resource, including: the first cyclic shift value is determined according to the first The index information of the code domain resources and the number of code domain resources supported by the one comb tooth are determined, or the first cyclic shift value is determined according to the index information of the first code domain resources and the number of code domain resources supported by the one resource block The number of code domain resources is determined.
  • the first terminal device may first determine the value corresponding to the first cyclic shift value according to the index information of the first code domain resource and the number of code domain resources supported in the one comb m0, and then determine the first cyclic shift value based on the value m0 corresponding to the first cyclic shift value; further, the first terminal device may use the value m0 corresponding to the first cyclic shift value and the maximum number of cyclic shift pairs supported in one comb (or the maximum number of code domain resources supported in one resource block), determine the value m1 corresponding to the second cyclic shift value, and then based on the The value m1 corresponding to the second cyclic shift value determines the second cyclic shift value, or, the first terminal device may determine the second cyclic shift value according to the value m0 corresponding to the first cyclic shift value and the The maximum number of supported cyclic shift pairs (or the maximum number of supported code domain resources in one resource block) determines the second cyclic shift value.
  • the first terminal device may combine the first cyclic shift value and the maximum number of cyclic shift pairs supported in one comb (or the maximum number of code domain resources supported in one resource block) and, determined as the value m1 corresponding to the second cyclic shift value; in other words, the value m1 corresponding to the second cyclic shift value may be equal to m0+N CS,total , where N CS,total represents the one The maximum number of cyclic shift pairs supported in a comb (or the maximum number of code domain resources supported in a resource block).
  • the number of code domain resources supported in one comb (or the number of code domain resources supported in one resource block) is N CS1 , where N CS1 is less than or equal to N CS,total .
  • the first cyclic shift value is determined according to index information of the first code domain resource and the number of cyclic shift pairs supported by the one comb tooth.
  • the number of cyclic shift pairs supported in one comb is determined according to the number of code domain resources supported in one comb.
  • the number of cyclic shift pairs supported in the one comb is equal to the number of code domain resources supported in the one comb.
  • a comb tooth when a comb tooth carries a PSFCH channel, the PSFCH corresponds to a sequence with a length of 48.
  • the number of code domain resources supported in one comb is obtained according to pre-configuration information or network configuration information.
  • Table 1 The index of the code domain resources and the corresponding relationship between the code domain resources
  • the PSSCH transmission resource is in The time domain includes slot 7 to slot 10, and the frequency domain includes comb tooth 0 to comb tooth 3; PSFCH transmission resources include comb tooth 0 to comb tooth 3 in slot 12; that is to say, slot 7 to comb tooth 3
  • the indices of the code domain resources included in the code domain resource set corresponding to the first PSSCH time slot are: 0,1; the corresponding values of m0 are: 0,3.
  • the indices of the code domain resources included in the code domain resource set corresponding to the second PSSCH time slot are: 2,3; the corresponding values of m0 are: 6,9.
  • the indices of the code domain resources included in the code domain resource set corresponding to the third PSSCH time slot are: 4,5; the corresponding values of m0 are: 12,15.
  • the indices of the code domain resources included in the code domain resource set corresponding to the fourth PSSCH slot are: 6,7; the corresponding values of m0 are: 18,21.
  • the PSSCH transmission resource It includes time slot 7 to time slot 10 in the time domain, and comb tooth 0 to comb tooth 3 in the frequency domain; PSFCH transmission resources include comb tooth 0 to comb tooth 3 in time slot 12; that is to say, time slot 7
  • the indices of the code domain resources included in the code domain resource set corresponding to the first PSSCH time slot are: 0,4; the corresponding values of m0 are: 0,12.
  • the indices of the code domain resources included in the code domain resource set corresponding to the second PSSCH time slot are: 1,5; the corresponding values of m0 are: 3,15.
  • the indices of the code domain resources included in the code domain resource set corresponding to the third PSSCH time slot are: 2,6; the corresponding values of m0 are: 6,18.
  • the indices of the code domain resources included in the code domain resource set corresponding to the fourth PSSCH time slot are: 3,7; the corresponding values of m0 are: 9,21.
  • the PSSCH transmission resources include in the time domain Time slot 7 to time slot 10, including comb 0 to comb 3 in the frequency domain; PSFCH transmission resources include comb 0 to comb 3 in time slot 12; that is to say, time slot 7 to comb 10
  • the present application does not limit the implementation manner in which the first terminal device determines the corresponding sequence based on the cyclic shift value.
  • the negative acknowledgment NACK sequence corresponding to the first PSSCH or the confirmation ACK sequence corresponding to the first PSSCH may be determined in the following manner:
  • indicates a cyclic shift, specifically, ⁇ is determined according to the first cyclic shift value m0 or the second cyclic shift value m1 of the above cyclic shift pair.
  • the first cyclic shift value is used to determine the negative acknowledgment NACK sequence corresponding to the first PSSCH
  • the second cyclic shift value is used to determine the acknowledgment ACK sequence corresponding to the first PSSCH .
  • the first cyclic shift value may also be used to determine the acknowledgment ACK sequence corresponding to the first PSSCH
  • the second cyclic shift value is used to determine the first The negative acknowledgment NACK sequence corresponding to the PSSCH is not specifically limited in this application.
  • a cyclic shift pair including two cyclic shift values can be determined as a code domain resource, that is, ACK and NACK sequences can be generated respectively according to the two cyclic shift values included in a code domain resource.
  • the first code domain resource may be any code domain resource in the first code domain resource set.
  • the code domain resource supported by the one comb tooth or the code domain resource supported by the one resource block includes the first code domain resource; correspondingly, the code domain resource information supported by the one comb tooth or the one
  • the code domain resource information supported by the resource block includes index information of the first code domain resource.
  • the index information of the first code domain resource may be an index value or an index number of the first code domain resource.
  • the method 200 may also include:
  • the first terminal device may, based on the identification information of the sending end of the first PSFCH and the identification information of the receiving end of the first PSFCH, determine the The first transmission resource.
  • the index of the first transmission resource is determined in the second transmission resource set according to the following formula:
  • S represents the index of the first transmission resource
  • P ID represents the identity of the second terminal device
  • M ID represents the identity of the first terminal device
  • N total represents the number of resources included in the second transmission resource set.
  • the number of PSFCH transmission resources, mod means modulo operation.
  • the identification information of the first terminal device is determined according to the member identification of the first terminal device in the communication group; or the identification information of the first terminal device is 0.
  • the identification information of the first terminal device is a member identification of the first terminal device in a communication group.
  • the identification information of the first terminal device is determined according to the member ID (member identity) of the first terminal device in the communication group; For multicast communication, and the first terminal device only feeds back NACK (that is, NACK-only feedback mode), the identification information of the first terminal device is 0; for unicast communication, the identification information of the first terminal device information is 0.
  • the identification information of the first terminal device may also be set to other values, which is not limited in this application.
  • the identification information of the second terminal device is determined according to the source identification information carried in the sidelink control information SCI corresponding to the first PSSCH.
  • the identification information of the second terminal device is the source identification information carried in the sidelink control information SCI corresponding to the first PSSCH.
  • FIG. 20 is a schematic flowchart of a wireless communication method 300 provided by an embodiment of the present application.
  • the method 300 may be executed by a second terminal device.
  • the second terminal device may be a transmitting end for sending the PSSCH, for example, the second terminal device may be the terminal B mentioned above, and the second terminal device may also be the terminal A mentioned above.
  • the method 300 may include:
  • the second time slot is determined according to the first time slot, and the first PSFCH carries sidelink feedback information in response to the first PSSCH.
  • the first PSSCH occupies at least one subchannel
  • the S320 may include:
  • the first transmission resource set includes the first transmission resource
  • the index information corresponding to the subchannel occupied by the first PSSCH includes at least one of the following information:
  • the number of subchannels occupied by the first PSSCH is the number of subchannels occupied by the first PSSCH.
  • the set of resource blocks where the first PSSCH is located includes at least one first set of resource blocks, and the first set of transmission resources includes at least one second set of resource blocks, wherein the at least one second resource The block set is determined according to the information of the at least one first resource block set.
  • the method 300 may also include:
  • the index information corresponding to the at least one first resource block set includes at least one of the following information:
  • the number of resource block sets included in the at least one first resource block set is the number of resource block sets included in the at least one first resource block set.
  • the transmission resources included in the first transmission resource set are indexed in the following order:
  • Indexing is performed first according to frequency domain resources, and then according to code domain resources.
  • the first indexing according to frequency domain resources includes:
  • the method 300 may also include:
  • the identification information of the second terminal device is determined according to the source identification information carried in the SCI associated with the first PSSCH, and the identification information of the first terminal device is determined according to the group of the first terminal device The member identification information is determined, or the identification information of the first terminal device is 0.
  • the first PSSCH occupies at least one first comb tooth
  • the S320 may include:
  • the second transmission resource set includes the first transmission resource.
  • the information of the at least one first comb tooth includes at least one of the following information:
  • the number of comb teeth included in the at least one first comb tooth is the number of comb teeth included in the at least one first comb tooth.
  • the transmission resources included in the second transmission resource set are indexed in the following order:
  • Indexing is performed first according to frequency domain resources, and then according to code domain resources.
  • the first indexing according to frequency domain resources includes:
  • the set of resource blocks where the first PSSCH is located includes at least one third set of resource blocks
  • the second set of transmission resources includes at least one set of fourth resource blocks, wherein the at least one fourth resource The block set is determined according to the information of the at least one third resource block set.
  • the method 300 may also include:
  • the number of resource block sets included in the at least one third resource block set is the number of resource block sets included in the at least one third resource block set.
  • the second transmission resource set includes at least one second comb, and the second comb is determined according to at least one of the following information:
  • the number of comb teeth included in the PSFCH slot is the number of comb teeth included in the PSFCH slot.
  • the second set of transmission resources includes a first set of code domain resources, and the first set of code domain resources is determined according to at least one of the following information:
  • the number of comb teeth included in the PSFCH slot is the number of comb teeth included in the PSFCH slot.
  • the number of code domain resources in the first code domain resource set is determined according to the following information: the number of code domain resources supported in the one comb or the code domain resources supported in the one resource block quantity, the period of the PSFCH, the number of comb teeth included in the PSSCH resource pool and the number of comb teeth included in the PSFCH time slot.
  • the number of code domain resources in the first set of code domain resources is (N CS1 /(P ⁇ K)), where N CS1 represents the number of code domain resources supported in one comb Or the number of code domain resources supported in one resource block, P represents the period of the PSFCH, K is determined according to N 4 and N 5 , N 4 represents the number of combs included in the PSSCH resource pool, and N 5 represents the number of combs included in the PSSCH resource pool The number of comb teeth included in the PSFCH time slot.
  • K max(1,N 4 /N 5 ).
  • the method 300 may also include:
  • the method 300 may also include:
  • the code-domain resource information supported by the one comb tooth or the code-domain resource information supported by the one resource block is acquired.
  • the method 300 may also include:
  • the first code domain resource in the first code domain resource set includes a first cyclic shift pair, and the first cyclic shift value in the first cyclic shift pair is based on the first The index information of the code domain resource is determined; the second cyclic shift value in the first cyclic shift pair is determined according to the first cyclic shift value and the maximum number of cyclic shift pairs supported in one comb, where , the maximum number of cyclic shift pairs supported in one comb is determined according to the maximum number of code domain resources supported in one comb; or, the second cyclic shift value is determined according to the first cyclic shift value and the maximum number of cyclic shift pairs supported in one resource block, wherein the maximum number of cyclic shift pairs supported in one resource block is determined according to the maximum number of code domain resources supported in one resource block.
  • the first cyclic shift value in the first cyclic shift pair is determined according to index information of the first code domain resource, including:
  • the first cyclic shift value is determined according to the index information of the first code domain resource and the number of code domain resources supported by the one comb, or,
  • the first cyclic shift value is determined according to the index information of the first code domain resource and the number of code domain resources supported by the one resource block.
  • the first cyclic shift value is used to determine the negative acknowledgment NACK sequence corresponding to the first PSSCH
  • the second cyclic shift value is used to determine the acknowledgment ACK sequence corresponding to the first PSSCH
  • the method 300 may also include:
  • the identification information of the second terminal device is determined according to the source identification information carried in the SCI associated with the first PSSCH, and the identification information of the first terminal device is determined according to the group of the first terminal device The member identification information is determined, or the identification information of the first terminal device is 0.
  • the method 200 and the method 300 are only examples of the present application, and only all or part of the steps in the method 200 or 300 may be included in the process of determining at least one second comb tooth. One or more of them can be combined into one step, which is not specifically limited in this application,
  • a time slot may represent a logical time slot in a resource pool
  • a comb-tooth resource may represent a comb-tooth resource in a resource pool
  • the sequence numbers of the above-mentioned processes do not mean the order of execution, and the order of execution of the processes should be determined by their functions and internal logic, and should not be used in this application.
  • the implementation of the examples constitutes no limitation.
  • the terms “downlink” and “uplink” are used to indicate the transmission direction of signals or data, wherein “downlink” is used to indicate that the transmission direction of signals or data is from the station to the user equipment in the cell For the first direction, “uplink” is used to indicate that the signal or data transmission direction is the second direction from the user equipment in the cell to the station, for example, “downlink signal” indicates that the signal transmission direction is the first direction.
  • the term "and/or" is only an association relationship describing associated objects, indicating that there may be three relationships. Specifically, A and/or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.
  • Fig. 21 is a schematic block diagram of a first terminal device 400 according to an embodiment of the present application.
  • the first terminal device 400 may include:
  • the receiving unit 410 is configured to receive the first physical sidelink shared channel PSSCH in the first time slot;
  • a determining unit 420 configured to determine a first transmission resource in the PSFCH transmission resource set included in the second time slot
  • a sending unit 430 configured to send a first PSFCH on the first transmission resource
  • the second time slot is determined according to the first time slot, and the first PSFCH carries sidelink feedback information in response to the first PSSCH.
  • the first PSSCH occupies at least one subchannel
  • the determining unit 420 is specifically configured to:
  • the first transmission resource set includes the first transmission resource
  • the index information corresponding to the subchannel occupied by the first PSSCH includes at least one of the following information:
  • the number of subchannels occupied by the first PSSCH is the number of subchannels occupied by the first PSSCH.
  • the set of resource blocks where the first PSSCH is located includes at least one first set of resource blocks, and the first set of transmission resources includes at least one second set of resource blocks, wherein the at least one second resource The block set is determined according to the information of the at least one first resource block set.
  • the determining unit 420 is also used to:
  • the index information corresponding to the at least one first resource block set includes at least one of the following information:
  • the number of resource block sets included in the at least one first resource block set is the number of resource block sets included in the at least one first resource block set.
  • the transmission resources included in the first transmission resource set are indexed in the following order:
  • Indexing is performed first according to frequency domain resources, and then according to code domain resources.
  • the first indexing according to frequency domain resources includes:
  • the determining unit 420 is also used to:
  • the identification information of the second terminal device is determined according to the source identification information carried in the SCI associated with the first PSSCH, and the identification information of the first terminal device is determined according to the group of the first terminal device The member identification information is determined, or the identification information of the first terminal device is 0.
  • the first PSSCH occupies at least one first comb tooth
  • the determining unit 420 is specifically configured to:
  • the second transmission resource set includes the first transmission resource.
  • the information of the at least one first comb tooth includes at least one of the following information:
  • the number of comb teeth included in the at least one first comb tooth is the number of comb teeth included in the at least one first comb tooth.
  • the transmission resources included in the second transmission resource set are indexed in the following order:
  • the first indexing according to frequency domain resources includes:
  • the set of resource blocks where the first PSSCH is located includes at least one third set of resource blocks
  • the second set of transmission resources includes at least one set of fourth resource blocks, wherein the at least one fourth resource The block set is determined according to the information of the at least one third resource block set.
  • the determining unit 420 is also used to:
  • the number of resource block sets included in the at least one third resource block set is the number of resource block sets included in the at least one third resource block set.
  • the second set of transmission resources includes at least one second comb, and the second comb is determined according to at least one of the following information:
  • the number of comb teeth included in the PSFCH slot is the number of comb teeth included in the PSFCH slot.
  • the second set of transmission resources includes a first set of code domain resources, and the first set of code domain resources is determined according to at least one of the following information:
  • the number of comb teeth included in the PSFCH slot is the number of comb teeth included in the PSFCH slot.
  • the number of code domain resources in the first code domain resource set is determined according to the following information: the number of code domain resources supported in the one comb or the code domain resources supported in the one resource block quantity, the period of the PSFCH, the number of comb teeth included in the PSSCH resource pool and the number of comb teeth included in the PSFCH time slot.
  • the number of code domain resources in the first set of code domain resources is (N CS1 /(P ⁇ K)), where N CS1 represents the number of code domain resources supported in one comb Or the number of code domain resources supported in one resource block, P represents the period of the PSFCH, K is determined according to N 4 and N 5 , N 4 represents the number of combs included in the PSSCH resource pool, and N 5 represents the number of combs included in the PSSCH resource pool The number of comb teeth included in the PSFCH time slot.
  • K max(1,N 4 /N 5 ).
  • the determining unit 420 is also used to:
  • the determining unit 420 is also used to:
  • the code-domain resource information supported by the one comb tooth or the code-domain resource information supported by the one resource block is acquired.
  • the determining unit 420 is also used to:
  • the first code domain resource in the first code domain resource set includes a first cyclic shift pair, and the first cyclic shift value in the first cyclic shift pair is based on the first The index information of the code domain resource is determined; the second cyclic shift value in the first cyclic shift pair is determined according to the first cyclic shift value and the maximum number of cyclic shift pairs supported in one comb, where , the maximum number of cyclic shift pairs supported in one comb is determined according to the maximum number of code domain resources supported in one comb;
  • the second cyclic shift value is determined according to the first cyclic shift value and the maximum number of cyclic shift pairs supported in one resource block, where the number of cyclic shift pairs supported in one resource block The maximum number is determined according to the maximum number of code domain resources supported in one resource block.
  • the determining unit 420 is specifically configured to:
  • the first cyclic shift value is determined according to the index information of the first code domain resource and the number of code domain resources supported by the one comb, or,
  • the first cyclic shift value is determined according to the index information of the first code domain resource and the number of code domain resources supported by the one resource block.
  • the first cyclic shift value is used to determine the negative acknowledgment NACK sequence corresponding to the first PSSCH
  • the second cyclic shift value is used to determine the acknowledgment ACK sequence corresponding to the first PSSCH
  • the determining unit 420 is also used to:
  • the identification information of the second terminal device is determined according to the source identification information carried in the SCI associated with the first PSSCH, and the identification information of the first terminal device is determined according to the group of the first terminal device The member identification information is determined, or the identification information of the first terminal device is 0.
  • the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment.
  • the first terminal device 400 shown in FIG. 21 may correspond to the corresponding subject in the method 200 or 300 of the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the first terminal device 400 In order to realize the corresponding processes in the respective methods in FIG. 13 or FIG. 20 , for the sake of brevity, details are not repeated here.
  • Fig. 22 is a schematic block diagram of a second terminal device 500 according to an embodiment of the present application.
  • the second terminal device 500 may include:
  • a sending unit 510 configured to send a first physical sidelink shared channel PSSCH in a first time slot
  • a determining unit 520 configured to determine a first transmission resource in the PSFCH transmission resource set included in the second time slot
  • the second time slot is determined according to the first time slot, and the first PSFCH carries sidelink feedback information in response to the first PSSCH.
  • the first PSSCH occupies at least one subchannel
  • the determining unit 520 is specifically configured to:
  • the first transmission resource set includes the first transmission resource
  • the index information corresponding to the subchannel occupied by the first PSSCH includes at least one of the following information:
  • the number of subchannels occupied by the first PSSCH is the number of subchannels occupied by the first PSSCH.
  • the set of resource blocks where the first PSSCH is located includes at least one first set of resource blocks, and the first set of transmission resources includes at least one second set of resource blocks, wherein the at least one second resource The block set is determined according to the information of the at least one first resource block set.
  • the determining unit 520 is further configured to:
  • the index information corresponding to the at least one first resource block set includes at least one of the following information:
  • the number of resource block sets included in the at least one first resource block set is the number of resource block sets included in the at least one first resource block set.
  • the transmission resources included in the first transmission resource set are indexed in the following order:
  • Indexing is performed first according to frequency domain resources, and then according to code domain resources.
  • the first indexing according to frequency domain resources includes:
  • the determining unit 520 is further configured to:
  • the identification information of the second terminal device is determined according to the source identification information carried in the SCI associated with the first PSSCH, and the identification information of the first terminal device is determined according to the group of the first terminal device The member identification information is determined, or the identification information of the first terminal device is 0.
  • the first PSSCH occupies at least one first comb tooth
  • the determining unit 520 is specifically configured to:
  • the second transmission resource set includes the first transmission resource.
  • the information of the at least one first comb tooth includes at least one of the following information:
  • the number of comb teeth included in the at least one first comb tooth is the number of comb teeth included in the at least one first comb tooth.
  • the transmission resources included in the second transmission resource set are indexed in the following order:
  • Indexing is performed first according to frequency domain resources, and then according to code domain resources.
  • the first indexing according to frequency domain resources includes:
  • the set of resource blocks where the first PSSCH is located includes at least one third set of resource blocks
  • the second set of transmission resources includes at least one set of fourth resource blocks, wherein the at least one fourth resource The block set is determined according to the information of the at least one third resource block set.
  • the determining unit 520 is further configured to:
  • the number of resource block sets included in the at least one third resource block set is the number of resource block sets included in the at least one third resource block set.
  • the second set of transmission resources includes at least one second comb, and the second comb is determined according to at least one of the following information:
  • the number of comb teeth included in the PSFCH slot is the number of comb teeth included in the PSFCH slot.
  • the second set of transmission resources includes a first set of code domain resources, and the first set of code domain resources is determined according to at least one of the following information:
  • the number of comb teeth included in the PSFCH slot is the number of comb teeth included in the PSFCH slot.
  • the number of code domain resources in the first code domain resource set is determined according to the following information: the number of code domain resources supported in the one comb or the code domain resources supported in the one resource block quantity, the period of the PSFCH, the number of comb teeth included in the PSSCH resource pool and the number of comb teeth included in the PSFCH time slot.
  • the number of code domain resources in the first set of code domain resources is (N CS1 /(P ⁇ K)), where N CS1 represents the number of code domain resources supported in one comb Or the number of code domain resources supported in one resource block, P represents the period of the PSFCH, K is determined according to N 4 and N 5 , N 4 represents the number of combs included in the PSSCH resource pool, and N 5 represents the number of combs included in the PSSCH resource pool The number of comb teeth included in the PSFCH time slot.
  • K max(1,N 4 /N 5 ).
  • the determining unit 520 is further configured to:
  • the determining unit 520 is further configured to:
  • the code-domain resource information supported by the one comb tooth or the code-domain resource information supported by the one resource block is acquired.
  • the determining unit 520 is further configured to:
  • the first code domain resource in the first code domain resource set includes a first cyclic shift pair, and the first cyclic shift value in the first cyclic shift pair is based on the first The index information of the code domain resource is determined; the second cyclic shift value in the first cyclic shift pair is determined according to the first cyclic shift value and the maximum number of cyclic shift pairs supported in one comb, where , the maximum number of cyclic shift pairs supported in one comb is determined according to the maximum number of code domain resources supported in one comb;
  • the second cyclic shift value is determined according to the first cyclic shift value and the maximum number of cyclic shift pairs supported in one resource block, where the number of cyclic shift pairs supported in one resource block The maximum number is determined according to the maximum number of code domain resources supported in one resource block.
  • the determining unit 520 is specifically configured to:
  • the first cyclic shift value is determined according to the index information of the first code domain resource and the number of code domain resources supported by the one comb, or,
  • the first cyclic shift value is determined according to the index information of the first code domain resource and the number of code domain resources supported by the one resource block.
  • the first cyclic shift value is used to determine the negative acknowledgment NACK sequence corresponding to the first PSSCH
  • the second cyclic shift value is used to determine the acknowledgment ACK sequence corresponding to the first PSSCH
  • the determining unit 520 is further configured to:
  • the identification information of the second terminal device is determined according to the source identification information carried in the SCI associated with the first PSSCH, and the identification information of the first terminal device is determined according to the group of the first terminal device The member identification information is determined, or the identification information of the first terminal device is 0.
  • the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment.
  • the second terminal device 500 shown in FIG. 22 may correspond to the corresponding subject in the method 200 or 300 of the embodiment of the present application, and the aforementioned and other operations and/or functions of each unit in the second terminal device 500 In order to realize the corresponding processes in the respective methods in FIG. 13 or FIG. 20 , for the sake of brevity, details are not repeated here.
  • each step of the method embodiment in the embodiment of the present application can be completed by an integrated logic circuit of the hardware in the processor and/or instructions in the form of software, and the steps of the method disclosed in the embodiment of the present application can be directly embodied as hardware
  • the execution of the decoding processor is completed, or the combination of hardware and software modules in the decoding processor is used to complete the execution.
  • the software module may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps in the above method embodiments in combination with its hardware.
  • the receiving unit 410, the sending unit 430, the sending unit 510, or the receiving unit 530 mentioned above may be implemented by a transceiver, and the determining unit 420 or the determining unit 520 mentioned above may be implemented by a processor.
  • FIG. 23 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
  • the communication device 600 may include a processor 610 .
  • processor 610 may invoke and run a computer program from the memory, so as to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620 .
  • the memory 620 may be used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 610 .
  • the processor 610 can call and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.
  • the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630 .
  • the processor 610 can control the transceiver 630 to communicate with other devices, specifically, can send information or data to other devices, or receive information or data sent by other devices.
  • Transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • bus system includes not only a data bus, but also a power bus, a control bus, and a status signal bus.
  • the communication device 600 may be the first terminal device in the embodiment of the present application, and the communication device 600 may implement the corresponding procedures implemented by the first terminal device in the various methods of the embodiment of the application, that is, the The communication device 600 in the embodiment of the application may correspond to the first terminal device 400 in the embodiment of the application, and may correspond to the corresponding subject performing the method 200 or 300 according to the embodiment of the application. For the sake of brevity, no further details are given here. .
  • the communication device 600 may be the second terminal device in the embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the second terminal device in each method of the embodiment of the present application.
  • the communication device 600 in the embodiment of the present application may correspond to the second terminal device 500 in the embodiment of the present application, and may correspond to the corresponding subject performing the method 200 or 300 according to the embodiment of the present application.
  • the communication device 600 in the embodiment of the present application may correspond to the second terminal device 500 in the embodiment of the present application, and may correspond to the corresponding subject performing the method 200 or 300 according to the embodiment of the present application.
  • the embodiment of the present application also provides a chip.
  • the chip may be an integrated circuit chip, which has signal processing capabilities, and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • the chip can also be called system-on-chip, system-on-chip, system-on-chip or system-on-chip, etc.
  • the chip can be applied to various communication devices, so that the communication device installed with the chip can execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • FIG. 24 is a schematic structural diagram of a chip 700 according to an embodiment of the present application.
  • the chip 700 includes a processor 710 .
  • the processor 710 can invoke and run a computer program from the memory, so as to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.
  • the memory 720 may be used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 710 .
  • the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
  • the chip 700 may further include an input interface 730 .
  • the processor 710 may control the input interface 730 to communicate with other devices or chips, specifically, may obtain information or data sent by other devices or chips.
  • the chip 700 may further include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.
  • the chip 700 can be applied to the first terminal device or the second terminal device in the embodiment of the present application, in other words, the chip can implement the corresponding process implemented by the first terminal device in each method of the embodiment of the present application, Corresponding processes implemented by the second terminal device in each method of the embodiments of the present application may also be implemented, and for the sake of brevity, details are not repeated here.
  • bus system includes not only a data bus, but also a power bus, a control bus, and a status signal bus.
  • the processors mentioned above may include, but are not limited to: general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field Programmable Gate Array , FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • FPGA Field Programmable Gate Array
  • the processor may be used to implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory mentioned above includes but not limited to: volatile memory and/or non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDR SDRAM double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory
  • Direct Rambus RAM Direct Rambus RAM
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium stores one or more programs, and the one or more programs include instructions.
  • the portable electronic device can perform the wireless communication provided by the application. communication method.
  • the computer-readable storage medium can be applied to the first terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the first terminal device in the methods of the embodiments of the present application, in order It is concise and will not be repeated here.
  • the computer-readable storage medium can be applied to the second terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the second terminal device in the methods of the embodiments of the present application, in order It is concise and will not be repeated here.
  • the embodiment of the present application also provides a computer program product, including a computer program.
  • the computer program When the computer program is executed by the computer, the computer can execute the wireless communication method provided in this application.
  • the computer program product can be applied to the first terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the first terminal device in each method of the embodiment of the present application.
  • the computer program product can be applied to the second terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the second terminal device in each method of the embodiment of the present application.
  • the embodiment of the present application also provides a computer program.
  • the computer program When the computer program is executed by the computer, the computer can execute the wireless communication method provided in this application.
  • the computer program can be applied to the first terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes the corresponding For the sake of brevity, the process will not be repeated here.
  • the computer program can be applied to the second terminal device in the embodiment of the present application, and when the computer program is run on the computer, the computer executes the corresponding For the sake of brevity, the process will not be repeated here.
  • An embodiment of the present application also provides a communication system, where the communication system may include the first terminal device and the second terminal device mentioned above, and details are not described here for brevity. It should be noted that the terms "system” and the like in this document may also be referred to as “network management architecture” or “network system”.
  • the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiment of the present application.
  • the aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.
  • the units/modules/components described above as separate/display components may or may not be physically separated, that is, they may be located in one place, or may also be distributed to multiple network units. Part or all of the units/modules/components can be selected according to actual needs to achieve the purpose of the embodiments of the present application.
  • the mutual coupling or direct coupling or communication connection shown or discussed above may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms .

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Abstract

本申请实施例提供了一种无线通信方法、第一终端设备及第二终端设备,所述方法涉及通信领域,所述方法包括:在第一时隙接收第一物理侧行共享信道PSSCH;在第二时隙包括的PSFCH传输资源集合中确定第一传输资源;在所述第一传输资源上发送第一PSFCH;其中,所述第二时隙是根据所述第一时隙确定的,所述第一PSFCH承载响应于所述第一PSSCH的侧行反馈信息。本申请提供的无线通信方法能够实现第一终端设备的PSFCH传输,不仅能够提升系统性能,还能够提升资源利用率。

Description

无线通信方法、第一终端设备及第二终端设备 技术领域
本申请实施例涉及通信领域,并且更具体地,涉及无线通信方法、第一终端设备及第二终端设备。
背景技术
在现有的新空口(New Radio,NR)侧行链路(Sidelink,SL)传输中,物理侧行反馈信道(Physical Sidelink Feedback Channel,PSFCH)在频域上占据一个资源块(Resource Block,RB),物理侧行共享信道(Physical Sidelink Shared Channel,PSSCH)的传输资源与PSFCH传输资源是一一对应的,即对于每个PSSCH,接收终端可以确定唯一的RB,并且在该RB上进行侧行反馈。
但是,针对侧行链路的传输技术,如终端到终端(Device to Device,D2D)或车辆到其他设备(Vehicle to Everything,V2X),终端设备可以工作在非授权频谱,此时,如何在非授权频谱上进行PSFCH传输,是本领域亟需解决的技术问题。
发明内容
本申请实施例提供了一种无线通信方法、第一终端设备及第二终端设备,能够实现第一终端设备的PSFCH传输,不仅能够提升系统性能,还能够提升资源利用率。
第一方面,本申请提供了一种无线通信方法,包括:
在第一时隙接收第一物理侧行共享信道PSSCH;
在第二时隙包括的PSFCH传输资源集合中确定第一传输资源;
在所述第一传输资源上发送第一PSFCH;
其中,所述第二时隙是根据所述第一时隙确定的,所述第一PSFCH承载响应于所述第一PSSCH的侧行反馈信息。
第二方面,本申请提供了一种无线通信方法,包括:
在第一时隙发送第一物理侧行共享信道PSSCH;
在第二时隙包括的PSFCH传输资源集合中确定第一传输资源;
在所述第一传输资源上接收第一PSFCH;
其中,所述第二时隙是根据所述第一时隙确定的,所述第一PSFCH承载响应于所述第一PSSCH的侧行反馈信息。
第三方面,本申请提供了一种第一终端设备,用于执行上述第一方面或其各实现方式中的方法。具体地,所述第一终端设备包括用于执行上述第一方面或其各实现方式中的方法的功能模块。
在一种实现方式中,该第一终端设备可包括处理单元,该处理单元用于执行与信息处理相关的功能。例如,该处理单元可以为处理器。
在一种实现方式中,该第一终端设备可包括发送单元和/或接收单元。该发送单元用于执行与发送相关的功能,该接收单元用于执行与接收相关的功能。例如,该发送单元可以为发射机或发射器,该接收单元可以为接收机或接收器。再如,该第一终端设备为通信芯片,该发送单元可以为该通信芯片的输入电路或者接口,该发送单元可以为该通信芯片的输出电路或者接口。
第四方面,本申请提供了一种第二终端设备,用于执行第二方面或其各实现方式中的方法。具体地,所述第二终端设备包括用于执行第二方面或其各实现方式中的方法的功能模块。
在一种实现方式中,该第二终端设备可包括处理单元,该处理单元用于执行与信息处理相关的功能。例如,该处理单元可以为处理器。
在一种实现方式中,该第二终端设备可包括发送单元和/或接收单元。该发送单元用于执行与发送相关的功能,该接收单元用于执行与接收相关的功能。例如,该发送单元可以为发射机或发射器,该接收单元可以为接收机或接收器。再如,该第二终端设备为通信芯片,该接收单元可以为该通信芯片的输入电路或者接口,该发送单元可以为该通信芯片的输出电路或者接口。
第五方面,本申请提供了一种第一终端设备,包括处理器和存储器。所述存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,以执行上述第一方面或其各实现方式中的方法。
在一种实现方式中,该处理器为一个或多个,该存储器为一个或多个。
在一种实现方式中,该存储器可以与该处理器集成在一起,或者该存储器与处理器分离设置。
在一种实现方式中,该第一终端设备还包括发射机(发射器)和接收机(接收器)。
第六方面,本申请提供了一种第二终端设备,包括处理器和存储器。所述存储器用于存储计算机程 序,所述处理器用于调用并运行所述存储器中存储的计算机程序,以执行第二方面或其各实现方式中的方法。
在一种实现方式中,该处理器为一个或多个,该存储器为一个或多个。
在一种实现方式中,该存储器可以与该处理器集成在一起,或者该存储器与处理器分离设置。
在一种实现方式中,该第二终端设备还包括发射机(发射器)和接收机(接收器)。
第七方面,本申请提供了一种芯片,用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。具体地,所述芯片包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第八方面,本申请提供了一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第九方面,本申请提供了一种计算机程序产品,包括计算机程序指令,所述计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第十方面,本申请提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
基于以上技术方案,本申请基于第二时隙引入了PSFCH传输资源集合,并将第一时隙上接收的第一PSSCH对应的第一PSFCH,设计为在所述PSFCH传输资源集合中确定的第一传输资源上发送,一方面,使得第一终端设备可以基于所述第一传输资源实现对所述第一PSFCH的传输,提升了系统性能,另一方面,不同时隙上的PSSCH对应的PSFCH可以按照相同的方式在同一时隙上进行复用传输,提升了资源利用率。
附图说明
图1至图7是本申请提供的场景的示例。
图8是本申请提供的一种侧行反馈的示意性图。
图9是本申请提供的一种PSFCH和PSCCH/PSSCH时隙结构的示意性图。
图10是本申请提供的一种侧行反馈信道的资源的示意性图。
图11是本申请实施例提供的基于梳齿的传输资源的示例。
图12和图13是本申请实施例提供的基于梳齿的帧结构示意图。
图14是本申请实施例提供的非授权频谱上配置的资源池的示例。
图15是本申请实施例提供的无线通信方法的示意性流程图。
图16是本申请实施例提供的可用于传输PSFCH的传输资源集合的索引的示例。
图17是本申请实施例提供的PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有一一对应关系的示例。
图18是本申请实施例提供的PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有多对一对应关系的示例。
图19是本申请实施例提供的PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有一对多对应关系的示例。
图20是本申请实施例提供的无线通信方法的另一示意性流程图。
图21是本申请实施例提供的第一终端设备的示意性框图。
图22是本申请实施例提供的第二终端设备的示意性框图。
图23是本申请实施例提供的通信设备的示意性框图。
图24是本申请实施例提供的芯片的示意性框图。
具体实施方式
下面将结合附图,对本申请实施例中的技术方案进行描述。
本申请实施例可以适用于任何终端设备到终端设备的通信框架。例如,车辆到车辆(Vehicle to Vehicle,V2V)、车辆到其他设备(Vehicle to Everything,V2X)、终端到终端(Device to Device,D2D)等。其中,本申请的终端设备可以是任何配置有物理层和媒体接入控制层的设备或装置,终端设备也可称为接入终端。例如,用户设备(User Equipment,UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字线性处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它线性处理设备、车载设备、可穿戴设备等等。本发明实施 例以车载终端为例进行说明,但并不限于此。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、先进的长期演进(Advanced long term evolution,LTE-A)系统、新空口(New Radio,NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)系统、非地面通信网络(Non-Terrestrial Networks,NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、第五代通信(5th-Generation,5G)系统或其他通信系统等。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信,或车联网(Vehicle to everything,V2X)通信等,本申请实施例也可以应用于这些通信系统。
可选地,本申请的通信系统可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。
可选地,本申请的通信系统可以应用于非授权频谱,其中,非授权频谱也可以认为是共享频谱;或者,本申请的通信系统也可以应用于授权频谱,其中,授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例,其中,终端设备也可以称为用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是WLAN中的站点(STATION,ST),可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备等。
在本申请,终端设备可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请,终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality,VR)终端设备、增强现实(Augmented Reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定,在本申请,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
在本申请,网络设备可以是用于与移动设备通信的设备,网络设备可以是WLAN中的接入点(Access Point,AP),GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及NR网络中的网络设备或者基站(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定,在本申请,网络设备可以具有移动特性,例如网络设备可以为移动的设备。可选地,网络设备可以为卫星、气球站。例如,卫星可以为低地球轨道(low earth orbit,LEO)卫星、中地球轨道(medium earth orbit,MEO)卫星、地球同步轨道(geostationary earth orbit,GEO)卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等。可选地,网络设备还可以为设置在陆地、水域等位置的基站。
在本申请,网络设备可以为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(Small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释,而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象,而不是用于描述特定顺序。此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
本申请,“预定义”可以通过在设备(例如,包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现,本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。
本申请,所述“协议”可以指通信领域的标准协议,例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议,本申请对此不做限定。
针对侧行通信,可以根据进行通信的终端所处的网络覆盖情况,将侧行通信分为网络覆盖内侧行通信,部分网络覆盖侧行通信及网络覆盖外侧行通信。
图1至图5是本申请提供的车载终端到车载终端的系统框架。
如图1所示,在网络覆盖内侧行通信中,所有进行侧行通信的终端(包括终端1和终端2)均处于网络设备的覆盖范围内,从而,所有终端均可以通过接收网络设备的配置信令,基于相同的侧行配置进行侧行通信。
如图2所示,在部分网络覆盖侧行通信情况下,部分进行侧行通信的终端位于网络设备的覆盖范围内,这部分终端(即终端1)能够接收到网络设备的配置信令,而且根据网络设备的配置进行侧行通信。而位于网络覆盖范围外的终端(即终端2),无法接收网络设备的配置信令,在这种情况下,网络覆盖范围外的终端将根据预配置(pre-configuration)信息及位于网络覆盖范围内的终端发送的侧行广播信道Physical Sidelink Broadcast Channel,PSBCH)中携带的信息确定侧行配置,进行侧行通信。
如图3所示,对于网络覆盖外侧行通信,所有进行侧行通信的终端(包括终端1和终端2)均位于网络覆盖范围外,所有终端均根据预配置信息确定的侧行配置进行侧行通信。
如图4所示,对于有中央控制节点的侧行通信,多个终端(包括终端1、终端2以及终端3)构成一个通信组,所述通信组内具有中央控制节点,又可以成为组头终端(Cluster Header,CH),所述中央控制节点具有以下功能之一:负责通信组的建立;组成员的加入、离开;进行资源协调,为其他终端分配侧行传输资源,接收其他终端的侧行反馈信息;与其他通信组进行资源协调等功能。例如,图4所示的终端1为终端1、终端2以及终端3所构成的通信组中的中央控制节点。
设备到设备通信是基于D2D的一种侧行链路(Sidelink,SL)传输技术,与传统的蜂窝系统中通信数据通过网络设备接收或者发送的方式不同,车联网系统采用终端到终端直接通信的方式,因此具有更高的频谱效率以及更低的传输时延。在3GPP定义了两种传输模式:第一模式和第二模式。
第一模式:
终端的传输资源是由网络设备分配的,终端根据网络设备分配的资源在侧行链路上进行数据的发送;网络设备可以为终端分配单次传输的资源,也可以为终端分配半静态传输的资源。如图1中,终端位于网络覆盖范围内,网络为终端分配侧行传输使用的传输资源。
第二模式:
终端在资源池中选取一个资源进行数据的传输。如图3中,终端位于小区覆盖范围外,终端在预配置的资源池中自主选取传输资源进行侧行传输;或者在图1中,终端在网络配置的资源池中自主选取传输资源进行侧行传输。
在NR-V2X中,需要支持自动驾驶,因此对车辆之间数据交互提出了更高的要求,如更高的吞吐量、更低的时延、更高的可靠性、更大的覆盖范围、更灵活的资源分配等。
在LTE-V2X中,支持广播传输方式,在NR-V2X中,引入了单播和组播的传输方式。
对于单播传输,其接收端终端只有一个终端。图5是本申请提供的单播传输的示意图。如图5所示,终端1、终端2之间进行单播传输。
对于组播传输,其接收端是一个通信组内的所有终端,或者是在一定传输距离内的所有终端。图6是本申请提供的组播传输的示意图。如图6所示,终端1、终端2、终端3和终端4构成一个通信组,其中终端1发送数据,该组内的其他终端设备都是接收端终端。
对于广播传输方式,其接收端是发送端终端周围的任意一个终端。图7是本申请提供的广播传输的示意图。如图7所示,终端1是发送端终端,其周围的其他终端,第终端2-终端6都是接收端终端。
为便于更好的理解本申请实施例,对本申请相关的侧行反馈信道进行说明。
在NR-V2X中,为了提高可靠性,引入了侧行反馈信道。
图8是本申请提供的一种侧行反馈的示意性图。
如图8所示,对于单播传输,发送端终端向接收端终端发送侧行数据(包括物理侧行控制信道(Physical Sidelink Control Channel,PSCCH)和物理侧行共享信道(Physical Sidelink Shared Channel,PSSCH)),接收端终端向发送端终端发送混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)反馈信息(包括肯定应答(Acknowledgement,ACK)或否定应答(Negative Acknowledgement,NACK)),发送端终端根据接收端终端的反馈信息判断是否需要进行重传。其中,HARQ反馈信息承载在侧行反馈信道中,例如PSFCH。
示例性地,可以通过预配置信息或者网络配置信息激活或者去激活侧行反馈,也可以通过发送端终端激活或去激活侧行反馈。如果侧行反馈被激活,则接收端终端接收发送端终端发送的侧行数据,并且根据检测结果向发送端反馈ACK或者NACK,发送端终端根据接收端的反馈信息决定发送重传数据或者新数据;如果侧行反馈被去激活,接收端终端不需要发送反馈信息,发送端终端通常采用盲重传的方式发送数据,例如,发送端终端对每个侧行数据重复发送K次,而不是根据接收端终端反馈信息决定是否需要发送重传数据。
为便于更好的理解本申请实施例,对本申请相关的侧行反馈信道的格式进行说明。
在NR-V2X中,引入了侧行反馈信道PSFCH。PSFCH承载1比特的混合自动重传请求-应答(Hybrid Automatic Repeat request Acknowledgement,HARQ-ACK)信息,在时域上占据2个时域符号(第二个符号承载侧行反馈信息,第一个符号上的数据是第二个符号上数据的复制,但是该符号通常在接收端用作自动增益控制(Automatic gain control,AGC)),频域上占据1个资源块(resource block,RB)。
图9是本申请提供的一种PSFCH和PSCCH/PSSCH时隙结构的示意性图。
如图9所示,一个时隙可包括PSFCH、PSCCH、和PSSCH所占的时域符号。具体的,在一个时隙中,最后一个符号用作保护间隔(Guard Period,GP),倒数第二个符号用于PSFCH传输,倒数第三个符号数据和PSFCH符号的数据相同,用做AGC,倒数第四个符号也用作GP,时隙中的第一个符号上的数据和该时隙中第二个时域符号上的数据相同,通常用作AGC,PSCCH占据3个时域符号,剩余的符号可用于PSSCH传输。应理解,图中只是示意性的表示了一个时隙中PSFCH信道和PSCCH/PSSCH信道所占的时域符号信息,没有体现不同信道占据的频域资源的关系。
为便于更好的理解本申请实施例,对本申请相关的侧行反馈信道的资源进行说明。
为了降低PSFCH信道的开销,定义在每P个时隙中的一个时隙包括PSFCH传输资源,即侧行反馈资源的周期是P个时隙,其中P={1、2、4},参数P是预配置或者网络配置的。
图10是本申请提供的一种侧行反馈信道的资源的示意性图。
如图10所示,假设P=4,PSSCH与其关联的PSFCH的最小时间间隔是2个时隙,因此,时隙3、4、5、6中传输的PSSCH,其反馈信息都是在时隙8中传输的,因此可以把时隙{3、4、5、6}看作一个时隙集合,该时隙集合中传输的PSSCH,其对应的PSFCH是在相同的时隙中。应理解,图10中示意性的表示了一个时隙中包括PSSCH和PSFCH时,PSSCH和PSFCH的时域位置,没有体现时隙中最后一个GP符号。
非授权频谱是国家和地区划分的可用于无线电设备通信的频谱,该频谱通常被认为是共享频谱,即不同通信系统中的通信设备只要满足国家或地区在该频谱上设置的法规要求,就可以使用该频谱,不需要向政府申请专有的频谱授权。
为了让使用非授权频谱进行无线通信的各个通信系统在该频谱上能够友好共存,一些国家或地区规定了使用非授权频谱必须满足的法规要求。例如,通信设备遵循“先听后说(Listen Before Talk,LBT)”原则,即通信设备在非授权频谱的信道上进行信号发送前,需要先进行信道侦听,只有当信道侦听结果 为信道空闲时,该通信设备才能进行信号发送;如果通信设备在非授权频谱的信道上的信道侦听结果为信道忙,该通信设备不能进行信号发送。为了保证公平性,在一次传输中,通信设备使用非授权频谱的信道进行信号传输的时长不能超过最大信道占用时间(Maximum Channel Occupancy Time,MCOT)。
本申请对基于非授权频谱的侧行传输系统(称为SL-U系统)进行了研究,在非授权频段上进行通信通常需要满足相应的法规需求,例如,如果终端要使用非授权频段进行通信,终端占用的频带范围需要大于或等于系统带宽的80%。因此,为了尽可能的在相同的时间内能够让更多的用户接入信道,本申请引入了基于梳齿(interlace)的资源配置方式。一个梳齿包括N个RB,频带范围内共计包括M个梳齿,第m个梳齿包括的为{m,M+m,2M+m,3M+m,……},对于一个确定的梳齿索引,其梳齿内包括多个资源块,被称为梳齿资源块(Interlaced Resource Block,IRB)。一个梳齿内连续的两个梳齿资源块间相隔的资源块数量固定为M,其中M的具体值由子载波间隔确定。对于15KHz子载波间隔,M为10;而对于30KHz子载波间隔,M为5。同样地,M个梳齿可以在频域上正交复用,它们的梳齿的索引为0到M-1。。
需要说明的是,本申请实施例中所述的梳齿、梳齿资源或梳齿索引可以相互替换,本申请实施例对此不做限定。例如,一个梳齿包括多个RB,可以替换为一个梳齿资源包括多个RB,或者,一个梳齿索引包括多个RB
图11是本申请实施例提供的基于梳齿的传输资源的示例。
如图11所示,假设系统带宽包括30个RB,该30个RB也可以划分为5个梳齿,即M=5,一个梳齿中相邻两个RB之间相距5个RB,每个梳齿可包括6个RB。
如果采用基于梳齿的资源分配粒度,SL-U系统的PSCCH、PSSCH、PSFCH等信道都是基于梳齿结构的,图12和图13是本申请实施例提供的基于梳齿的帧结构示意图,图12是时隙中只包括PSCCH和PSSCH且不包括PSFCH的帧结构的示意图;图13是时隙中包括PSCCH、PSSCH和PSFCH的帧结构的示意图,图中系统带宽包括20个RB,配置5个梳齿,即M=5,每个梳齿包括4个RB,其中,左侧数字表示RB的索引,右侧数字表示梳齿索引。
如图12所示,对于不包括PSFCH的帧结构,系统配置PSCCH占据1个梳齿,时域占据2个OFDM符号,PSSCH以梳齿为粒度,时隙中的第一个符号上的数据和该时隙中第二个时域符号上的数据相同,通常用作AGC,最后一个符号为GP符号。例如,PSSCH1占据梳齿0和梳齿1,其对应的PSCCH1占据梳齿0,即PSCCH和该PSCCH调度的PSSCH的频域起始位置相同。再如,PSSCH2占据梳齿2,其对应的PSCCH2也占据梳齿2。如图13所示,对应包括PSFCH资源的时隙结构,一个PSFCH占据一个梳齿,如PSFCH0占据梳齿0,在时域上占据2个时域符号,其中,两个时域符号上传输的数据相同,例如,第一个符号上的数据是第二个符号上数据的重复,或者,第二个符号上的数据是第一个符号上数据的重复,并且在PSFCH占据的第一个时域符号之前的一个符号为GP符号,在PSFCH占据的最后一个时域符号之后的一个符号为GP符号。此外,图12和图13中所示的第一个时域符号上的数据可以是第二个符号上数据的重复,该符号通常用作AGC。
需要说明的是,图12和图13仅为本申请的示例,不应理解为对本申请的限定,例如,在其他可替代实施例中,在所示的帧结构中还可以涉及第二阶侧行控制信息(Sidelink Control Information,SCI)占据的资源以及PSCCH解调参考信号(Demodulation Reference Signal,DMRS)和PSSCH DMRS占据的资源。
然而,如上文所述,针对基于RB传输的PSFCH,为了降低PSFCH信道的开销,定义在每P个时隙中的一个时隙包括PSFCH传输资源,相应的,在引入基于梳齿的侧行传输后,如何基于梳齿实现对PSFCH的传输是急需解决的技术问题。基于此,本申请实施例提供了一种无线通信方法、第一终端设备及第二终端设备,通过明确用于传输PSFCH的梳齿,不仅能够提升系统性能,还能够提升资源利用率。
此外,在SL-U系统,可以通过预配置信息或网络配置信息在非授权频谱或共享频谱上配置资源池,所述资源池可用于侧行传输。在一些实施方式中,所述资源池包括M1个资源块集合(Resource Block Set,RB set),其中,一个资源块集合包括M2个资源块(Resource Block,RB),M1和M2是正整数。在一些实施方式中,一个资源块集合对应非授权频谱(或共享频谱)中的一个信道(channel),或者一个资源块集合对应进行LBT的最小频域粒度,或者一个资源块集合对应LBT子带。
例如,一个非授权频谱上的信道对应的带宽为20M Hz,即一个资源块集合对应的带宽也是20M Hz。或者,一个非授权频谱上的信道的带宽为20M Hz,对应于M3个RB,该M3个RB是一个信道所包括的所有的RB,或者是一个信道中可用于数据传输的所有的RB,如M3=100(对应于15kHz子载波间隔),则一个RB set也对应于100个RB,即M2=100。
又例如,在非授权频谱上需要通过LBT的结果判断是否可以使用非授权频谱,进行LBT的最小频 域粒度为20M Hz,则一个资源块集合对应于20MHz包括的RB数。或者一个资源块集合包括M2=100个RB(对应于15kHz子载波间隔),LBT的最小频域粒度为一个资源块集合,即100个RB。
需要说明的是,在本申请实施例中,所述资源块集合又可称为信道或LBT子带,本申请实施例对此不做限定。
在一些实施方式中,所述资源池的频域起始位置和所述M1个资源块集合中的第一资源块集合的频域起始位置相同,其中,所述第一资源块集合可以是所述M1个资源块集合中频域位置最低的资源块集合。
在一些实施方式中,所述资源池的频域结束位置和所述M1个资源块集合中的第二资源块集合的频域结束位置相同,其中,所述第二资源块集合可以是所述M1个资源块集合中频域位置最高的资源块集合。
图14是本申请实施例提供的非授权频谱上配置的资源池的示例。
如图14所示,假设所述资源池包括M1=3个资源块集合,对应的资源块集合的索引分别为资源块集合0、资源块集合1和资源块集合2,其中,资源块集合0的频域位置最低,资源块集合2的频域位置最高,因此,该资源池的频域起始位置和资源块集合0的频域起始位置相同,或该资源池的频域起始位置根据资源块集合0的频域起始位置确定;该资源池的频域结束位置和资源块集合2的频域结束位置相同,或该资源池的频域结束位置根据资源块集合2的频域结束位置确定。
在一些实施方式中,该资源池包括的M1个资源块集合中的相邻两个资源块集合中间包括保护频带(Guard Band,GB)。
在一些实施方式中,可以根据预配置信息或网络配置信息确定所述保护频带的频域起始位置和频域大小。换言之,终端设备获取预配置信息或网络配置信息,该预配置信息或网络配置信息用于配置保护频带(Guard Band,GB)。在一些实施方式中,保护频带用于分隔资源块集合RB set。
例如,结合图14来说,在侧行带宽部分(Bandwidth Part,BWP)内配置了3个保护频带,分别对应保护频带0、保护频带1和保护频带2,这3个保护频带分隔了4个资源块集合,根据侧行BWP的频域起始位置(即图中所示的侧行BWP的起点)以及每个保护频带的频域起始位置(即图中所示的保护频带的起点)和保护频带的频域大小(即图中所示的保护频带的长度),即可确定每个资源块集合的频域起始位置和结束位置。由于资源池包括3个资源块集合,即资源块集合0至资源块集合2,因此,该资源池的频域起始位置(即图中所示的资源池的起点)对应于资源块集合0的频域起始位置,资源池的频域结束位置(即图中所示的资源池的终点)对应于资源块集合2的频域结束位置。
在一些实施方式中,一个资源块集合中包括多个梳齿。
例如,结合图14来说,资源块集合0至资源块集合2中的每个资源块集合中都可以包括多个梳齿。
在一些实施方式中,一个PSSCH可以在一个或多个资源块集合中发送。或者,一个PSSCH可以占据一个或多个资源块集合中的传输资源。
在又一些实施方式中,一个PSSCH可以在一个或多个资源块集合中发送,并且所述一个PSSCH占据所述一个或多个资源块集合中的一个或多个梳齿。例如,结合图14来说,资源池中包括3个资源块集合,即资源块集合0、资源块集合1和资源块集合2;进一步的,当子载波间隔大小为15kHz时,在一个资源块集合中包括100个RB,对应10个梳齿,即梳齿0至梳齿9。一个PSSCH可以在一个资源块集合中传输,进一步的,所述一个PSSCH可以占据一个资源块集合中的部分或全部梳齿对应的资源。例如,PSSCH 1在资源块集合0中发送,并且PSSCH 1占据资源块集合0中的全部梳齿对应的资源,即PSSCH 1占据资源块集合0中的梳齿0至梳齿9对应的资源。PSSCH 2在资源块集合1中发送,PSSCH 2占据资源块集合1中的2个梳齿对应的资源,如PSSCH 2占据资源块集合1中的梳齿0和梳齿1对应的资源。PSSCH 3在资源块集合1和资源块集合2中发送,PSSCH 3分别占据这两个资源块集合中3个梳齿对应的资源,如PSSCH 3分别占据资源块集合1和资源块集合2中的梳齿3、梳齿4和梳齿5对应的资源。
图15是本申请实施例提供的无线通信方法200的示意性流程图。所述方法200可以由第一终端设备执行。所述第一终端设备可以是用于接收PSSCH的接收端,例如,所述第一终端设备可以是上文涉及的终端B,所述第一终端设备也可以是上文涉及的终端A。
S210,在第一时隙接收第一物理侧行共享信道PSSCH;
S220,在第二时隙包括的PSFCH传输资源集合中确定第一传输资源;
S230,在所述第一传输资源上发送第一PSFCH;
其中,所述第二时隙是根据所述第一时隙确定的,所述第一PSFCH承载响应于所述第一PSSCH的侧行反馈信息。
本实施例中,基于第二时隙引入了PSFCH传输资源集合,并将第一时隙上接收的第一PSSCH对 应的第一PSFCH,设计为在所述PSFCH传输资源集合中确定的第一传输资源上发送,一方面,使得第一终端设备可以基于所述第一传输资源实现对所述第一PSFCH的传输,提升了系统性能,另一方面,不同时隙上的PSSCH对应的PSFCH可以按照相同的方式在同一时隙上进行复用传输,提升了资源利用率。可选的,所述第一PSFCH中携带所述第一PSSCH对应的侧行反馈信息,所述侧行反馈信息包括ACK或NACK。
可选的,所述第一PSFCH的频域资源大小为一个物理资源块。
可选的,本申请涉及的第一传输资源可以包括时域资源、频域资源或码域资源。
可选的,所述第二时隙可以是根据所述第一PSSCH所在的第一时隙确定的。
示例性地,所述第一终端设备可基于第一PSSCH所在的时隙以及PSSCH与PSFCH之间的最小时间间隔确定所述第一PSFCH所在的时隙。例如,PSSCH与PSFCH之间的最小时间间隔为k个时隙,若所述第一终端设备在时隙n接收的所述第一PSSCH,则第一PSFCH所在的时隙,即所述第二时隙位于n+k之后的(包括时隙n+k)第一个包括PSFCH传输资源的时隙。
应当理解,在其他可替代实施例中,所述第一PSSCH也可以替换为其他需要进行反馈的物理侧行信道,也即是说,所述第一PSSCH可以替换为第一物理侧行信道;所述第一PSFCH也可以替换为其他任意能够承载反馈信息的物理侧行信道,也即是说,所述第一PSFCH可以替换为第二物理侧行信道,所述第二物理侧行信道用于承载所述第一物理侧行信道对应的反馈信息;所述第一时隙和所述第二时隙也可分别替换为其他粒度的时间单元,也即是说,所述第一时隙和所述第二时隙可分别替换为第一时间单元和第二时间单元。可选的,所述第一时间单元包括但不限于:帧、子帧、时隙、符号等时域时间单元。可选的,所述第二时间单元包括但不限于:帧、子帧、时隙、符号等时域时间单元。
换言之,所述第一终端设备可以在第一时间单元上接收第一物理侧行信道,在第二时间单元包括的用于传输反馈信息的传输资源集合中确定第一传输资源,在所述第一传输资源上发送所述第一物理侧行信道对应的反馈信息。可选的,所述第一物理侧行信道可以是PSSCH。可选的,所述反馈信息可以承载在第二物理侧行信道上,所述第二物理侧行信道可以是PSFCH。可选的,所述第一时间单元包括但不限于:帧、子帧、时隙、符号等时域时间单元。可选的,所述第二时间单元包括但不限于:帧、子帧、时隙、符号等时域时间单元。
在一些实施例中,所述第一PSSCH占据至少一个子信道(sub-channel);所述S220可包括:
根据所述第一PSSCH所在的资源块集合的信息和所述第一PSSCH占据的子信道对应的索引信息,确定第一传输资源集合;其中,所述第一传输资源集合中包括所述第一传输资源,所述第一PSSCH占据的子信道对应的索引信息包括以下信息中的至少一种:
所述第一PSSCH占据的子信道中第一个子信道对应的索引信息;
所述第一PSSCH占据的所有子信道对应的索引信息;
所述第一PSSCH占据的子信道的数量。
可选的,一个资源块集合中可包括一个或多个子信道,每一个子信道包括频域连续的多个RB。
换言之,由于所述第一PSSCH的传输资源是基于子信道的资源,因此,一个资源池内可以包括多个资源块集合,一个资源块集合中可以包括多个子信道;基于此,所述第一终端设备确定所述第一传输资源时,可以基于所述第一PSSCH所在的资源块集合的信息和所述第一PSSCH占据的子信道对应的索引信息,在所述第二时隙包括的PSFCH传输资源集合中,确定可用于传输所述第一PSFCH的第一传输资源集合。可选的,所述第一传输资源集合包括可用于传输所述第一PSFCH的频域资源以及可用于传输所述第一PSFCH的码域资源。可选的,可用于传输所述第一PSFCH的频域资源根据所述第一PSSCH所在的资源块集合的信息和/或所述第一PSSCH占据的子信道对应的索引信息确定。
在一些实施例中,所述第一PSSCH所在的资源块集合包括至少一个第一资源块集合,所述第一传输资源集合包括至少一个第二资源块集合,其中,所述至少一个第二资源块集合是根据所述至少一个第一资源块集合的信息确定的。
换言之,一个资源池内可以包括多个资源块集合,所述第一PSSCH的传输资源可以占据一个或多个资源块集合;因此,所述第一终端设备确定所述第一传输资源时,可以根据所述第一PSSCH占据的至少一个第一资源块集合,在所述第二时隙包括的PSFCH传输资源集合中,确定与所述至少一个第一资源块集合对应的至少一个第二资源块集合,进一步的,可以在所述至少一个第二资源块集合内确定所述第一PSFCH对应的频域资源以及相应的码域资源。
示例性地,当PSSCH资源池中包括资源块集合时,可以通过两种方式配置PSFCH的传输资源:
方式1:
PSSCH资源池包括A个资源块集合,PSFCH时隙的PSFCH传输资源集合中包括B个资源块集合,其中A和B是正整数,优选的,A=B。在所述B个资源块集合中的每一个资源块集合分别配置有对应 的PSFCH传输资源,可选的,所述PSFCH传输资源包括可用于传输PSFCH的物理资源块;可选的,针对所述B个资源块集合中的每一个资源块集合配置的PSFCH传输资源相同。示例性地,第一终端设备在根据第一PSSCH的传输资源确定第一PSFCH的传输资源时,可以根据第一PSSCH所在的至少一个第一资源块集合的信息确定用于传输第一PSFCH的至少一个第二资源块集合的信息,进一步的,第一终端设备可以根据第一PSSCH在所述至少一个第一资源块集合内占据的子信道对应的索引信息,确定在相应的至少一个第二资源块集合内的物理资源块的信息。
方式2:
PSSCH资源池包括A个资源块集合,PSFCH时隙的PSFCH传输资源集合中包括B个资源块集合,其中A和B是正整数,优选的,A=B。在配置PSFCH传输资源时只配置一组可用于传输PSFCH的物理资源块。示例性地,所述第一终端设备在根据所述第一PSSCH的传输资源确定所述第一PSFCH的传输资源时,可以根据所述第一PSSCH所在的至少一个第一资源块集合的信息以及第一PSSCH占据的子信道对应的索引信息,在可用于PSFCH传输的物理资源块集合中确定相应的物理资源块的信息。
示例性的,在资源池配置信息中的参数sl-PSFCH-RB-Set用于配置可用于传输PSFCH的物理资源块集合。对于方式1,针对每个资源块集合分别有其对应的参数sl-PSFCH-RB-Set,或者,该资源池配置信息中只包括一个参数sl-PSFCH-RB-Set,但是该参数配置的物理资源块集合适用于所述B个资源块集合中的每个资源块集合。对于方式2,该资源池配置信息中只包括一个参数sl-PSFCH-RB-Set,在所述A个资源块集合中发送的PSSCH,其对应的PSFCH传输资源都位于参数sl-PSFCH-RB-Set所指示的物理资源块集合中。
需要说明的是,上述两种方式是关于如何确定第一PSFCH的传输资源中的频域资源的,包括资源块集合或物理资源块;进一步的,第一终端设备还可以根据一个物理资源块内支持的码域资源信息(或循环移位对信息)确定第一传输资源集合(一个传输资源包括频域资源和码域资源),然后,第一终端设备可以根据发送端和接收端标识在所述第一传输资源集合中确定具体的传输资源。
在一些实施例中,其特征在于,所述方法200还可包括:
根据所述至少一个第一资源块集合对应的索引信息确定所述至少一个第二资源块集合,其中,所述至少一个第一资源块集合对应的索引信息包括以下信息中至少一种:
所述至少一个第一资源块集合中的第一个第一资源块集合对应的索引信息;
所述至少一个第一资源块集合中所有的第一资源块集合对应的索引信息;
所述至少一个第一资源块集合中的包括的资源块集合的数量。
在一些实施例中,所述第一传输资源集合中包括的传输资源按照下面的顺序进行索引:
先按照频域资源进行索引,再按照码域资源进行索引。
图16是本申请实施例提供的可用于传输PSFCH的传输资源集合的索引的示例。
如图16所示,假设PSFCH的第一传输资源集合中包括的传输资源的数量为N total=N f·N CS,即包括N f个频域资源,所述N f个频域资源的索引的范围是0,1,……,N f-1,所述N f个频域资源中每一个频域资源支持N CS个循环移位对,N CS个循环移位对的索引值的范围是:0,1,……,N CS-1,则所述第一传输资源集合中传输资源从低到高的资源索引顺序对应于先按照频域资源从低到高进行索引再按照循环移位对从低到高进行索引。可选的,本申请中涉及的循环移位对也可称为码域资源。
在一些实施例中,所述先按照频域资源进行索引,包括:先按照资源块集合索引从低到高的顺序进行索引,再按照物理资源块索引从低到高的顺序进行索引;或者;先按照物理资源块索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
结合图16来说,N f个频域资源可以是先按照资源块集合索引从低到高的顺序进行索引,再按照物理资源块索引从低到高的顺序进行索引得到的物理资源块;或者;N f个频域资源可以是先按照物理资源块索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引得到的物理资源块。相应的,N CS可以表示一个资源块支持的循环移位对的数量。
在一些实施例中,所述方法200还可包括:
根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第一传输资源集合中确定所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
换言之,所述第一终端设备可基于所述第一PSFCH的发送端(对应于所述第一PSSCH的接收端)的标识信息和所述第一PSFCH的接收端(对应于所述第一PSSCH的发送端)的标识信息,在可用于传输所述第一PSFCH的第一传输资源集合中确定所述第一传输资源。
可选的,按照以下公式,在所述第一传输资源集合中确定所述第一传输资源的索引:
S=(P ID+M ID)mod N total
其中,S表示所述第一传输资源的索引,P ID表示所述第二终端设备的标识,M ID表示所述第一终端 设备的标识,N total表示所述第一传输资源集合中包括的PSFCH传输资源的数量,mod表示取模运算。
可选的,所述第一终端设备的标识信息根据所述第一终端设备在通信组内的成员标识确定;或所述第一终端设备的标识信息为0。
示例性地,所述第一终端设备的标识信息为所述第一终端设备在通信组内的成员标识。
示例性地,对于组播通信,并且所述第一终端设备反馈ACK或NACK,所述第一终端设备的标识信息根据所述第一终端设备在通信组内的成员ID(member identity)确定;对于组播通信,并且所述第一终端设备只反馈NACK(即NACK-only的反馈方式),所述第一终端设备的标识信息为0;对于单播通信,所述第一终端设备的标识信息为0。当然,在其他可替代实施例中,所述第一终端设备的标识信息也可设置为其他数值,本申请对此不作限定。
可选的,所述第二终端设备的标识信息根据所述第一PSSCH对应的侧行控制信息SCI中携带的源标识信息确定。
示例性地,所述第二终端设备的标识信息为所述第一PSSCH对应的侧行控制信息SCI中携带的源标识信息。
在一些实施例中,所述第二终端设备的标识信息根据所述第一PSSCH关联的SCI中携带的源标识信息确定,所述第一终端设备的标识信息根据所述第一终端设备的组成员标识信息确定,或者,所述第一终端设备的标识信息为0。
在一些实施例中,所述第一PSSCH占据至少一个第一梳齿;所述S220可包括:
根据以下信息中的至少一种在所述第二时隙中确定第二传输资源集合:
所述第一PSSCH所在的资源块集合的信息;
所述至少一个第一梳齿的信息;
一个梳齿内支持的码域资源的数量;
一个梳齿支持的码域资源信息;
一个资源块内支持的码域资源的数量;
一个资源块支持的码域资源信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量;
其中,所述第二传输资源集合中包括所述第一传输资源。
可选的,一个资源块集合中可包括一个或多个梳齿,每一个梳齿包括频域离散的多个RB。
换言之,由于所述第一PSSCH的传输资源是基于梳齿结构的资源,因此,一个资源池内可以包括多个资源块集合,且一个资源块集合可以包括一个或多个梳齿;基于此,所述第一终端设备确定所述第一传输资源时,可以基于以下信息的至少一项,在所述第二时隙包括的PSFCH传输资源集合中,确定可用于传输所述第一PSFCH的第二传输资源集合:
所述第一PSSCH所在的资源块集合的信息;
所述至少一个第一梳齿的信息;
一个梳齿内支持的码域资源的数量;
一个梳齿支持的码域资源信息;
一个资源块内支持的码域资源的数量;
一个资源块支持的码域资源信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量。
换言之,所述第二传输资源集合可包括频域资源和码域资源,所述第二传输资源集合的频域资源可包括可用于传输所述第一PSFCH的资源块集合和可用于传输所述第一PSFCH的梳齿。其中,可用于传输所述第一PSFCH的梳齿可以是可用于传输所述第一PSFCH的资源块集合中的梳齿。所述第二传输资源集合的码域资源可以包括一个梳齿内可用于传输所述第一PSFCH的码域资源或一个资源块内可用于传输所述第一PSFCH的码域资源。例如,所述第二传输资源集合的码域资源可以包括一个可用于传输所述第一PSFCH的梳齿内的可用于传输所述第一PSFCH的码域资源,或所述第二传输资源集合的码域资源可以包括一个可用于传输所述第一PSFCH的资源块内的可用于传输所述第一PSFCH的码域资源。相应的,用于确定所述第二资源集合的频域资源的信息可包括:用于确定可用于传输所述第一 PSFCH资源块集合的信息,以及可用于传输所述第一PSFCH的梳齿的信息,用于确定所述第二传输资源集合的码域资源的信息可包括:用于在一个梳齿或一个资源块内确定可用于传输所述第一PSFCH的码域资源的信息。
在一些实施例中,所述至少一个第一梳齿的信息包括以下信息中的至少一种:
所述至少一个第一梳齿中第一个第一梳齿对应的索引信息;
所述至少一个第一梳齿中包括的所有梳齿对应的索引信息;
所述至少一个第一梳齿中包括的梳齿的数量。
在一些实施例中,所述第二传输资源集合中包括的传输资源按照下面的顺序进行索引:
先按照频域资源进行索引,再按照码域资源进行索引。
如图16所示,假设PSFCH的第一传输资源集合中包括的传输资源的数量为N total=N f·N CS,即包括N f个频域资源,所述N f个频域资源的索引的范围是0,1,……,N f-1,所述N f个频域资源中每一个频域资源(包括一个梳齿或者一个物理资源块)支持N CS个循环移位对,N CS个循环移位对的索引值的范围是:0,1,……,N CS-1,则所述第二传输资源集合中传输资源从低到高的资源索引顺序对应于先按照频域资源从低到高进行索引再按照循环移位对从低到高进行索引。可选的,本申请中涉及的循环移位对也可称为码域资源。
在一些实施例中,所述先按照频域资源进行索引,包括:先按照资源块集合索引从低到高的顺序进行索引,再按照梳齿索引从低到高的顺序进行索引;或者;先按照梳齿索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
结合图16来说,在一种实现方式中,N f个频域资源可以是先按照资源块集合索引从低到高的顺序进行索引,再按照梳齿索引从低到高的顺序进行索引得到的梳齿;或者;N f个频域资源可以是先按照梳齿索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引得到的梳齿。
在一些实施例中,所述第一PSSCH所在的资源块集合包括至少一个第三资源块集合,所述第二传输资源集合包括至少一个第四资源块集合,其中,所述至少一个第四资源块集合是根据所述至少一个第三资源块集合的信息确定的。
换言之,由于所述第一PSSCH的传输资源是基于梳齿结构的资源,因此,一个资源池内可以包括多个资源块集合,且一个资源块集合可以包括一个或多个梳齿;基于此,所述第一终端设备确定所述第二传输资源时,可以根据所述第一PSSCH占据的至少一个第三资源块集合,在所述第二时隙包括的PSFCH传输资源集合中,确定与所述至少一个第三资源块集合对应的至少一个第四资源块集合;进一步的,第一终端设备可以在所述至少一个第四资源块集合中,确定可用于传输所述第一PSFCH的至少一个第二梳齿以及相应的码域资源。考虑到CDM复用方式,本申请涉及的码域资源可以是基于一个资源块支持的码域资源,也可以是一个梳齿内支持的码域资源,本申请对此不做限定。
在一些实施例中,所述方法200还可包括:
根据所述至少一个第三资源块集合对应的索引信息确定所述至少一个第四资源块集合,其中,所述至少一个第三资源块集合对应的索引信息包括以下信息中至少一种:
所述至少一个第三资源块集合中的第一个第三资源块集合对应的索引信息;
所述至少一个第三资源块集合中所有的第三资源块集合对应的索引信息;
所述至少一个第三资源块集合中的包括的资源块集合的数量。
在一些实施例中,所述第二传输资源集合包括至少一个第二梳齿,所述第二梳齿是根据如下信息中的至少一种确定的:
所述第一PSSCH所在的资源块集合的信息;
所述至少一个第一梳齿的信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量。
可选的,可以根据所述至少一个第一梳齿的信息在所述PSFCH传输资源集合中确定所述至少一个第二梳齿。
换言之,由于所述第一PSSCH和所述第一PSFCH的频域资源粒度都是梳齿,因此,所述第一PSSCH占据的梳齿可以对应于所述第一PSFCH的梳齿,即所述第一PSSCH的传输资源所在的梳齿和所述第一PSFCH的传输资源所在的梳齿之间可以是对应的。也即是说,所述第一PSFCH的传输资源所在的梳齿可以根据所述第一PSSCH的传输资源所在的梳齿确定。作为一个示例,所述第一PSFCH的传输资源所在的梳齿可以根据所述第一PSSCH的传输资源的频域起始位置对应的梳齿的索引确定,或者, 所述第一PSFCH的传输资源所在的梳齿可以根据所述第一PSSCH的传输资源对应的所有梳齿的索引确定。
可选的,所述第二传输资源集合包括至少一个第四资源块集合中每一个第四资源块集合内的所述至少一个第二梳齿。
可选的,所述至少一个第一梳齿的信息包括以下至少一种:
所述至少一个第一梳齿中第一个第一梳齿的索引信息;
所述至少一个第一梳齿包括的梳齿的数量;
所述至少一个第一梳齿中所有第一梳齿的索引信息。
换言之,所述至少一个第一梳齿的信息也可以称为所述第一PSSCH占据的第一梳齿的信息;也即是说,所述至少一个第一梳齿的信息包括以下至少一种:
所述第一PSSCH占据的第一个第一梳齿的索引信息;
所述第一PSSCH占据的第一梳齿包括的梳齿的数量;
所述第一PSSCH占据的所有第一梳齿的索引信息。
示例性地,可以根据所述至少一个第一梳齿中第一个第一梳齿的索引,确定所述至少一个第二梳齿的索引。例如,所述第一PSSCH占据梳齿0和梳齿1,则根据梳齿0确定所述至少一个第二梳齿的索引,例如,将所述至少一个第一梳齿中第一个第一梳齿的索引确定为所述至少一个第二梳齿的索引,即所述至少一个第二梳齿的索引为梳齿0。
示例性地,可以根据所述至少一个第一梳齿中所有梳齿的索引,确定所述至少一个第二梳齿的索引。例如,所述第一PSSCH占据梳齿0和梳齿1,则根据梳齿0和梳齿1确定所述至少一个第二梳齿的索引,例如,将所述至少一个第一梳齿中所有梳齿的索引确定为所述至少一个第二梳齿的索引,即所述至少一个第二梳齿的索引包括梳齿0和梳齿1。
示例性地,若所述第一PSSCH占据N 1个梳齿,则可以确定所述第一PSFCH占据的梳齿数量为N 3。若所述第一PSFCH的梳齿根据所述第一PSSCH占据的第一个第一梳齿的索引确定,则所述N 3=1;若所述PSFCH的梳齿根据所述PSSCH占据的所有第一梳齿的索引确定,则所述N 3大于或等于1。
示例性地,若PSSCH资源池包括N 4个梳齿,PSFCH时隙中包括N 5个梳齿,其中N 4=K 1×N 5,K 1为正整数,则PSSCH时隙中的每K 1个第一梳齿对应PSFCH时隙中的一个梳齿;若N 5=K 2×N 4,K 2为正整数,则PSSCH时隙中的1个第一梳齿对应PSFCH时隙中的K 2个梳齿。进一步的,结合上述根据PSSCH占据的第一梳齿的信息即可确定用于传输PSFCH的第二梳齿资源。
示例性地,通过资源池配置信息确定PSSCH资源池中包括的梳齿数N 4,确定PSFCH时隙中包括的梳齿数N 5,在一些实施方式中,N 4是N 5的整数倍,或N 5是N 4的整数倍。即资源池配置信息配置的PSSCH资源池中的梳齿数能被PSFCH时隙中包括的梳齿数整除,或者,资源池配置信息配置的PSFCH时隙中包括的梳齿数能被PSSCH资源池中的梳齿数整除。
可选的,PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有对应关系。
换言之,PSSCH所在资源池中的梳齿和用于传输PSFCH的梳齿具有对应关系。例如,PSSCH所在资源池的一个梳齿可以对应一个用于传输PSFCH的梳齿,或者,PSSCH所在资源池的多个梳齿可以对应一个用于传输PSFCH的梳齿,或者,PSSCH所在资源池的一个梳齿可以对应多个用于传输PSFCH的梳齿。
示例性地,所述第一PSSCH占据的至少一个第一梳齿和所述第一PSFCH所在的至少一个第二梳齿之间有对应关系。
示例性地,可以根据所述第一PSSCH占据的梳齿资源确定与所述第一PSSCH关联的第一PSFCH对应的梳齿资源。例如,在资源池配置信息中配置PSSCH资源池包括N 4个梳齿,PSFCH时隙中可用于传输PSFCH的传输资源包括N 5个梳齿,每一个PSSCH资源池中的梳齿都有与其对应的PSFCH时隙中的梳齿,若所述第一PSSCH占据N 1个梳齿,则可以确定在PSFCH时隙中与该N 1个梳齿对应的N 3个梳齿,所述第一PSSCH关联的所述第一PSFCH的传输资源位于所示N 3个梳齿中,其中,N 1,N 3,N 4,N 5是正整数。
示例性地,PSSCH时隙的梳齿X对应于PSFCH时隙中的梳齿Y,表示的是在PSSCH时隙梳齿X上传输的PSSCH,其对应的PSFCH的可用传输资源包括PSFCH时隙中的梳齿Y;PSSCH时隙的梳齿X和梳齿Y对应于PSFCH时隙中的梳齿Z,表示的是在PSSCH时隙梳齿X上传输的PSSCH和/或梳齿Y上传输的PSSCH,其对应的PSFCH的可用传输资源包括PSFCH时隙中的梳齿Z;PSSCH时隙的梳齿X对应于PSFCH时隙中的梳齿Y和梳齿Z,表示的是在PSSCH时隙梳齿X上传输的PSSCH,其对应的PSFCH的可用传输资源包括PSFCH时隙中的梳齿Y和/或梳齿Z;其中,X,Y,Z表示梳齿索引。
示例性地,所述第一PSSCH可以占据N 1个梳齿,N 1的大小与所述第一PSSCH承载侧行数据对应的传输块大小相关。所述第一PSFCH可以占据N 2个梳齿,N2是预定义的或根据资源池配置参数确定的,优选的N 2=1。应理解,若N 2=1,即一个PSFCH占据1个梳齿,但是,由于所述第一PSSCH占据的N 1个梳齿可以对应N 3个可用于传输PSFCH的梳齿,因此,所述第一PSFCH的传输资源位于所述N 3个可用于传输PSFCH的梳齿中,其中,N 1,N 2,N 3是正整数。
当然,PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿可以是一一对应,或者是多对一,或者是一对多等对应关系,本申请对此不做限定。
下面结合附图对PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿之间的对应关系进行示例性说明。
可选的,PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有一一对应关系。
图17是本申请实施例提供的PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有一一对应关系的示例。
如图17所示,假设PSFCH的周期是4个时隙,PSSCH与其关联的PSFCH之间的最小时间间隔是2个时隙,作为一个示例,PSSCH传输资源在时域上包括时隙7至时隙10,在频域上包括梳齿0至梳齿3;PSFCH传输资源包括时隙12中梳齿0至梳齿3;时隙7至时隙10中发送的PSSCH对应的PSFCH都是在时隙12中进行传输,也即是说,与PSFCH时隙12相关联的PSSCH时隙包括时隙7至时隙10。应理解,图中只是示意性的表示了一个时隙中包括4个梳齿,并没有体现一个梳齿在频域上对应离散的多个RB。应理解,图中所示的梳齿资源是属于一个资源块集合内的梳齿资源,当PSSCH资源池包括多个资源块集合时,图中所示的梳齿资源可以是任意一个资源块集合中包括的梳齿资源;或者,资源池中的任意一个资源块集合中的梳齿资源结构如图17中所示。
此外,PSSCH传输资源所在的梳齿和其对应的PSFCH的传输资源所在的梳齿之间是一一对应的。也即是说,对于时隙7至时隙10内的且在梳齿0上传输的PSSCH,其对应的PSFCH的可用传输资源包括时隙12的梳齿0;对于时隙7至时隙10内的且在梳齿1上传输的PSSCH,其对应的PSFCH的可用传输资源包括时隙12的梳齿1;对于时隙7至时隙10内的且在梳齿2上传输的PSSCH,其对应的PSFCH的可用传输资源包括时隙12的梳齿2;对于时隙7至时隙10内的且在梳齿3上传输的PSSCH,其对应的PSFCH的可用传输资源包括时隙12的梳齿3。
结合本申请来说,所述第二时隙是根据所述第一PSSCH所在的第一时隙确定的;示例性地,假设所述第一PSSCH的传输资源所在的时隙为时隙7至时隙10中的时隙,PSFCH的周期P设为4个时隙,PSSCH与PSFCH之间的最小时间间隔是2个时隙,则所述第二时隙为时隙12,即包括PSFCH传输资源的时隙为时隙12。此外,由于每一个PSSCH时隙中的梳齿均包括梳齿0、梳齿1、梳齿2、梳齿3,所述PSFCH时隙中(即所述第二时隙对应的梳齿)包括梳齿0、梳齿1、梳齿2、梳齿3,因此,PSSCH时隙中的梳齿和PSFCH时隙中的梳齿是一一对应的。示例性地,若所述第一PSSCH的传输资源所在的至少一个第一梳齿包括梳齿1,则所述至少一个第二梳齿也可以包括梳齿1。
在一些实施例中,PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有多对一对应关系。
图18是本申请实施例提供的PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有多对一对应关系的示例。
如图18所示,假设PSFCH的周期是4个时隙,PSSCH与其关联的PSFCH之间的最小时间间隔是2个时隙,作为一个示例,PSSCH传输资源在时域上包括时隙7至时隙10,在频域上包括梳齿0至梳齿3;PSFCH传输资源包括时隙12中梳齿0至梳齿1;时隙7至时隙10中发送的PSSCH对应的PSFCH都是在时隙12中进行传输,也即是说,与PSFCH时隙12相关联的PSSCH时隙包括时隙7至时隙10。应理解,图中只是示意性的表示了一个时隙中包括4个梳齿,并没有体现一个梳齿在频域上对应离散的多个RB。应理解,图中所示的梳齿资源是属于一个资源块集合内的梳齿资源,当PSSCH资源池包括多个资源块集合时,图中所示的梳齿资源可以是任意一个资源块集合中包括的梳齿资源;或者,资源池中的任意一个资源块集合中的梳齿资源结构如图18中所示。
此外,PSSCH传输资源所在的梳齿和其对应的PSFCH的传输资源所在的梳齿之间是多对一对应关系。也即是说,N 4=4,N 5=2,即PSSCH时隙中的2个梳齿对应PSFCH时隙中的1个梳齿。示例性地,对于时隙7至时隙10内的且在梳齿0和/或梳齿1上传输的PSSCH,其对应的PSFCH的可用传输资源包括时隙12的梳齿0;对于时隙7至时隙10内的且在梳齿2和/或梳齿3上传输的PSSCH,其对应的PSFCH的可用传输资源包括时隙12的梳齿1。示例性地,若一个PSSCH占据N 1=2个梳齿,如梳齿0和梳齿1,则可以在PSFCH时隙中确定该PSSCH对应的PSFCH占据的梳齿为梳齿0;若一个PSSCH占据N 1=1个梳齿,如梳齿0,则可以在PSFCH时隙中确定该PSSCH对应的PSFCH占据的梳齿为梳齿0;若一个PSSCH占据N 1=1个梳齿,如梳齿2,则可以在PSFCH时隙中确定该PSSCH对 应的PSFCH占据的梳齿为梳齿1。
结合本申请来说,所述第二时隙是根据所述第一PSSCH所在的第一时隙确定的;示例性地,假设所述第一PSSCH的传输资源所在的时隙为时隙7至时隙10中的时隙,PSFCH的周期P设为4个时隙,PSSCH与PSFCH之间的最小时间间隔是2个时隙,则所述第二时隙为时隙12,即包括PSFCH传输资源的时隙为时隙12。此外,由于每一个PSSCH时隙中的梳齿均包括梳齿0、梳齿1、梳齿2、梳齿3,所述PSFCH传输资源集合(即所述第二时隙对应的梳齿)包括梳齿0和梳齿1,因此,PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有多对一对应关系。示例性地,若所述第一PSSCH的传输资源所在的至少一个第一梳齿包括梳齿0和/或梳齿1,则所述至少一个第二梳齿可以包括梳齿0。
在一些实施例中,PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有一对多对应关系。
图19是本申请实施例提供的PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有一对多对应关系的示例。
如图19所示,假设PSFCH的周期是4个时隙,PSSCH与其关联的PSFCH之间的最小时间间隔是2个时隙,作为一个示例,PSSCH传输资源在时域上包括时隙7至时隙10,在频域上包括梳齿0至梳齿1;PSFCH传输资源包括时隙12中梳齿0至梳齿3;时隙7至时隙10中发送的PSSCH对应的PSFCH都是在时隙12中进行传输,也即是说,与PSFCH时隙12相关联的PSSCH时隙包括时隙7至时隙10。应理解,图中只是示意性的表示了一个时隙中包括4个梳齿,并没有体现一个梳齿在频域上对应离散的多个RB。应理解,图中所示的梳齿资源是属于一个资源块集合内的梳齿资源,当PSSCH资源池包括多个资源块集合时,图中所示的梳齿资源可以是任意一个资源块集合中包括的梳齿资源;或者,资源池中的任意一个资源块集合中的梳齿资源结构如图19中所示。
此外,PSSCH传输资源所在的梳齿和其对应的PSFCH的传输资源所在的梳齿之间是一对多对应关系。也即是说,N 4=2,N 5=4,即PSSCH时隙中的1个梳齿对应PSFCH时隙中的2个梳齿。示例性地,对于时隙7至时隙10内的且在梳齿0上传输的PSSCH,其对应的PSFCH的可用传输资源包括时隙12的梳齿0和梳齿1;对于时隙7至时隙10内的且在梳齿1上传输的PSSCH,其对应的PSFCH的可用传输资源包括时隙12的梳齿2和梳齿3。示例性地,若一个PSSCH占据N 1=1个梳齿,如梳齿0,则可以在PSFCH时隙中确定该PSSCH对应的PSFCH的传输资源包括梳齿0和梳齿1;若一个PSSCH占据N 1=2个梳齿,如梳齿0和梳齿1,则可以在PSFCH时隙中确定该PSSCH对应的PSFCH的传输资源包括梳齿0、梳齿1、梳齿2和梳齿3。
结合本申请来说,所述第二时隙是根据所述第一PSSCH所在的第一时隙确定的;示例性地,假设所述第一PSSCH的传输资源所在的时隙为时隙7至时隙10中的时隙,PSFCH的周期P设为4个时隙,PSSCH与PSFCH之间的最小时间间隔是2个时隙,则所述第二时隙为时隙12,即包括PSFCH传输资源的时隙为时隙12。此外,由于每一个PSSCH时隙中的梳齿均包括梳齿0和梳齿1,所述PSFCH传输资源集合(即所述第二时隙对应的梳齿)包括梳齿0、梳齿1、梳齿2、梳齿3,因此,PSSCH资源池包括的梳齿和PSFCH时隙中的梳齿具有一对多对应关系。示例性地,若所述第一PSSCH的传输资源所在的至少一个第一梳齿包括梳齿0,则所述至少一个第二梳齿可以包括梳齿0和梳齿1。
在又一些实施例中,当PSSCH资源池包括的梳齿数小于PSFCH时隙中的梳齿数时,根据所述至少一个第一梳齿和所述第一时隙确定所述至少一个第二梳齿。
如图19所示,假设PSFCH的周期是4个时隙,PSSCH与其关联的PSFCH之间的最小时间间隔是2个时隙,作为一个示例,PSSCH传输资源在时域上包括时隙7至时隙10,在频域上包括梳齿0至梳齿1;PSFCH传输资源包括时隙12中梳齿0至梳齿3;时隙7至时隙10中发送的PSSCH对应的PSFCH都是在时隙12中进行传输,也即是说,与PSFCH时隙12相关联的PSSCH时隙包括时隙7至时隙10。应理解,图中只是示意性的表示了一个时隙中包括4个梳齿,并没有体现一个梳齿在频域上对应离散的多个RB。应理解,图中所示的梳齿资源是属于一个资源块集合内的梳齿资源,当PSSCH资源池包括多个资源块集合时,图中所示的梳齿资源可以是任意一个资源块集合中包括的梳齿资源;或者,资源池中的任意一个资源块集合中的梳齿资源结构如图19中所示。
示例性地,PSSCH的资源池包括2个梳齿,即N 4=2,PSFCH时隙包括4个梳齿,即N 5=4,此时,不同PSSCH时隙中传输的PSSCH,其对应的PSFCH的传输资源可以对应PSFCH时隙中的不同梳齿。示例性地,对于时隙7的梳齿0上传输的PSSCH,其对应的PSFCH的传输资源包括时隙12的梳齿0;对于时隙7的梳齿1上传输的PSSCH,其对应的PSFCH的传输资源包括时隙12的梳齿1;对于时隙8的梳齿0上传输的PSSCH,其对应的PSFCH的传输资源包括时隙12的梳齿2;对于时隙8的梳齿1上传输的PSSCH,其对应的PSFCH的传输资源包括时隙12的梳齿3;对于时隙9的梳齿0上传输的PSSCH,其对应的PSFCH的传输资源包括时隙12的梳齿0;对于时隙9的梳齿1上传输的PSSCH,其对应的PSFCH的传输资源包括时隙12的梳齿1;对于时隙10的梳齿0上传输的PSSCH,其对应 的PSFCH的传输资源包括时隙12的梳齿2;对于时隙10的梳齿1上传输的PSSCH,其对应的PSFCH的传输资源包括时隙12的梳齿3。也即是说,时隙7和时隙8上传输的PSSCH,其对应的PSFCH传输资源对应于时隙12中的不同梳齿,即时隙7和时隙8上传输的PSSCH所对应的PSFCH在时隙12中频分复用;时隙9和时隙10上传输的PSSCH,其对应的PSFCH传输资源对应于时隙12中的不同梳齿,即时隙9和时隙10上传输的PSSCH所对应的PSFCH在时隙12中频分复用。此外,时隙7和时隙9中相同梳齿上传输的PSSCH,其对应的PSFCH传输资源对应于时隙12中的相同梳齿,进一步的,可以在该相同梳齿中确定不同的码域资源集合,从而实现时隙7和时隙9相同梳齿上传输的PSSCH所对应的PSFCH的传输资源在时隙12中码分复用;时隙8和时隙10中相同梳齿上传输的PSSCH,其对应的PSFCH传输资源对应于时隙12中的相同梳齿,进一步的,可以在该相同梳齿中确定不同的码域资源集合,从而实现时隙8和时隙10相同梳齿上传输的PSSCH所对应的PSFCH的传输资源在时隙12中码分复用。
由此可见,当PSSCH资源池包括的梳齿数小于PSFCH时隙中的梳齿数时,不同PSSCH时隙中发送的PSSCH所对应的PSFCH传输资源在PSFCH时隙中可以频分复用或码分复用,可以根据PSSCH所在的时隙信息以及PSSCH占据的梳齿的信息确定其对应的PSFCH在PSFCH时隙中的梳齿资源。
应当理解,图17至图19仅为本申请的示例,不应理解为对本申请的限制。例如,为了便于示例,图17至图19中的一个梳齿包括一个RB,但在实际实现中,一个梳齿包括的多个RB应该均匀分布在频域范围内,本申请对此不再赘述。此外,图17至图19给出了一个时隙中的频域资源包括4或2个梳齿的示例,但在其他可替代实施例中,一个时隙中的频域资源还可以包括其他数量的梳齿。另外,图17给出了PSSCH传输资源所在的一个梳齿对应于PSFCH时隙中的一个梳齿,即PSFCH传输资源所在的梳齿和PSSCH传输资源所在的一个梳齿具有一一对应关系,但在其他可替代实施例中,也可以是一对多或多对一的关系,本申请对此不作具体限定。例如,图18给出了PSSCH传输资源所在的2个梳齿对应于PSFCH时隙中的一个梳齿,即PSFCH传输资源所在的一个梳齿对应PSSCH传输资源所在的2个梳齿,再如,图19给出了PSSCH传输资源所在的一个梳齿对应于PSFCH时隙中的2个梳齿,即PSFCH传输资源所在的2个梳齿对应PSSCH传输资源所在的1个梳齿。
在一些实施例中,所述第二传输资源集合包括第一码域资源集合,所述第一码域资源集合是根据如下信息中的至少一种确定的:
一个梳齿内支持的码域资源的数量;
一个梳齿支持的码域资源信息;
一个资源块内支持的码域资源的数量;
一个资源块支持的码域资源信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量。
可选的,所述第一码域资源集合可以是一个梳齿(例如用于传输PSSCH的梳齿)对应的码域资源集合。
示例性地,假设所述第一PSSCH占用至少一个第三资源块集合中的至少一个第一梳齿,所述第一PSFCH占用至少一个第四资源块集合中的至少一个第二梳齿;则所述第一码域资源集合包括所述至少一个第一梳齿中的一个第一梳齿在一个第二梳齿中对应的码域资源。换言之,所述第一码域资源集合包括PSSCH时隙中的一个第一梳齿在PSFCH时隙中的一个第二梳齿中对应的码域资源。也即是说,若所述第一PSSCH所在的时隙为第一时隙,所述第一PSFCH所在的时隙为第二时隙,则所述第一码域资源集合包括所述第一时隙中的一个第一梳齿在所述第二时隙中的一个第二梳齿中对应的码域资源。又或者是,所述第一PSSCH所在的梳齿为至少一个第一梳齿,所述第一PSFCH所在的梳齿为至少一个第二梳齿,则所述第一码域资源集合包括所述至少一个第一梳齿中的一个第一梳齿在所述一个第二梳齿中对应的码域资源。
示例性地,假设可用于传输所述第一PSFCH的传输资源为第二传输资源集合,且所述第二传输资源集合包括至少一个第四资源块集合,则所述第一码域资源集合为所述至少一个第四资源块集合中的一个梳齿对应的码域资源集合。
可选的,所述第一码域资源集合可以是一个时隙(例如用于传输PSSCH的时隙)对应的码域资源集合。
示例性地,假设所述第一PSSCH占用至少一个第三资源块集合中的至少一个第一梳齿,所述第一PSFCH占用至少一个第四资源块集合中的至少一个第二梳齿;则所述第一码域资源集合包括所述第一 时隙在所述至少一个第二梳齿中的一个第二梳齿内对应的码域资源;换言之,所述第一码域资源集合包括所述第一PSSCH所在的第一时隙在PSFCH时隙中的一个第二梳齿中对应的码域资源;也即是说,若所述第一PSSCH所在的时隙为第一时隙,所述第一PSFCH所在的时隙为第二时隙,则所述第一码域资源集合包括所述第一时隙在所述第二时隙中的一个第二梳齿中对应的码域资源。
示例性地,假设所述第一PSSCH占用至少一个第三资源块集合中至少一个第一梳齿中的至少一个第一资源块,所述第一PSFCH占用至少一个第四资源块集合中的至少一个第二梳齿中的至少一个第二资源块;则所述第一码域资源集合包括所述第一时隙在所述至少一个第二资源块中的一个第二资源块内对应的码域资源;换言之,所述第一码域资源集合包括所述第一PSSCH所在的第一时隙在PSFCH时隙中的一个第二资源块中对应的码域资源;也即是说,若所述第一PSSCH所在的时隙为第一时隙,所述第一PSFCH所在的时隙为第二时隙,则所述第一码域资源集合包括所述第一时隙在所述第二时隙中的一个第二资源块中对应的码域资源。
可选的,所述第一码域资源集合可以是一个资源块(例如用于传输PSSCH的一个梳齿中的一个资源块)对应的码域资源集合。
示例性地,假设所述第一PSSCH占用至少一个第三资源块集合中至少一个第一梳齿中的至少一个第一资源块,所述第一PSFCH占用至少一个第四资源块集合中的至少一个第二梳齿中的至少一个第二资源块;则所述第一码域资源集合包括所述至少一个第一资源块中的一个第一资源块在一个第二资源块中对应的码域资源。换言之,所述第一码域资源集合包括PSSCH时隙中的一个第一资源块在PSFCH时隙中的一个第二资源块中对应的码域资源。也即是说,若所述第一PSSCH所在的时隙为第一时隙,所述第一PSFCH所在的时隙为第二时隙,则所述第一码域资源集合包括所述第一时隙中的一个第一资源块在所述第二时隙中的一个第二资源块中对应的码域资源。又或者是,所述第一PSSCH所在的资源块为至少一个第一资源块,所述第一PSFCH所在的资源块为至少一个第二资源块,则所述第一码域资源集合包括所述至少一个第一资源块中的一个第一资源块在所述一个第二资源块中对应的码域资源。
示例性地,假设可用于传输所述第一PSFCH的传输资源为第二传输资源集合,且所述第二传输资源集合包括至少一个第四资源块集合,则所述第一码域资源集合为所述至少一个第四资源块集合中的一个梳齿内的一个资源块的码域资源集合。
本实施例中,由于所述第一码域资源集合可以是一个梳齿、一个时隙甚至是一个资源块对应的码域资源集合,因此,所述第二传输资源集合中的一个传输资源的频域资源和码域资源是确定的;或者说,所述第二传输资源集合中的不同传输资源,其码域资源不同和/或频域资源不同,相当于,本实施例可以支持一个包括PSFCH传输资源的时隙中的PSFCH对应于P个时隙中发送的PSSCH,即本实施例可以支持在一个时隙中承载多个时隙的PSSCH所对应的PSFCH,以实现将PSFCH时隙中的PSFCH进行频分复用和/或码分复用。
可选的,所述一个梳齿内支持的码域资源的数量根据预配置信息或网络配置信息确定。
可选的,所述一个梳齿内支持的码域资源的数量可以是一个第二梳齿内支持的码域资源的数量,其中,所述第二梳齿是用于传输PSFCH的梳齿。
示例性地,假设所述第一PSFCH占用至少一个第二梳齿,则所述一个梳齿内支持的码域资源的数量可以为所述至少一个第二梳齿中的一个第二梳齿内支持的码域资源的数量。示例性地,假设可用于传输所述第一PSFCH的传输资源为第二传输资源集合,且所述第二传输资源集合包括至少一个第四资源块集合,则所述一个梳齿内支持的码域资源的数量可以为所述至少一个第四资源块集合中的一个梳齿内支持的码域资源的数量。
可选的,所述一个梳齿支持的码域资源信息可以理解为所述一个第二梳齿内支持的码域资源信息;其中,所述第二梳齿是用于传输PSFCH的梳齿,所述码域资源信息可以包括码域资源的索引信息,例如索引编号或索引值。
示例性地,假设所述第一PSFCH占用至少一个第二梳齿,则所述一个梳齿支持的码域资源信息可以为所述至少一个第二梳齿中的一个第二梳齿支持的码域资源信息。示例性地,假设可用于传输所述第一PSFCH的传输资源为第二传输资源集合,且所述第二传输资源集合包括至少一个第四资源块集合,则所述一个梳齿支持的码域资源信息可以为所述至少一个第四资源块集合中的一个梳齿支持的码域资源信息。
可选的,所述一个资源块内支持的码域资源的数量根据预配置信息或网络配置信息确定。
可选的,所述一个资源块内支持的码域资源的数量可以理解为所述至少一个第二梳齿中的一个资源块内支持的码域资源的数量;其中,所述第二梳齿是用于传输PSFCH的梳齿。
示例性地,假设所述第一PSFCH占用至少一个第二梳齿,则所述一个资源块内支持的码域资源的数量可以为所述至少一个第二梳齿中的一个第二梳齿中的一个资源块内支持的码域资源的数量。示例 性地,假设可用于传输所述第一PSFCH的传输资源为第二传输资源集合,且所述第二传输资源集合包括至少一个第四资源块集合,则所述一个资源块内支持的码域资源的数量可以为所述至少一个第四资源块集合中的一个梳齿中的一个资源块内支持的码域资源的数量。
可选的,所述一个资源块支持的码域资源信息可以理解为所述至少一个第二梳齿中的一个资源块内支持的码域资源信息;其中,所述第二梳齿是用于传输PSFCH的梳齿,所述码域资源信息可以包括码域资源的索引信息,例如索引编号或索引值。
示例性地,假设所述第一PSFCH占用至少一个第二梳齿,则所述一个梳齿支持的码域资源信息可以为所述至少一个第二梳齿中的一个第二梳齿中的一个资源块支持的码域资源信息。示例性地,假设可用于传输所述第一PSFCH的传输资源为第二传输资源集合,且所述第二传输资源集合包括至少一个第四资源块集合,则所述一个梳齿支持的码域资源信息可以为所述至少一个第四资源块集合中的一个梳齿的一个资源块支持的码域资源信息。
由于所述第一码域资源集合可以是一个用于传输PSSCH的梳齿、用于传输PSSCH的时隙或用于传输PSSCH的资源块对应的码域资源集合,因此,所述第一码域资源集合中码域资源的数量可以是一个用于传输PSSCH的时隙对应的码域资源的数量,也可以是一个用于传输PSSCH的时隙内的一个梳齿对应的码域资源的数量,甚至可以是一个用于传输PSSCH的时隙内的一个梳齿中的一个资源块对应的码域资源的数量。
在一些实施例中,所述第一码域资源集合中码域资源的数量根据所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量确定。
示例性地,假设所述第一PSFCH占用至少一个第二梳齿,则所述第一码域资源集合中码域资源的数量是根据所述至少一个第二梳齿中的一个第二梳齿内支持的码域资源的数量确定的,或所述第一码域资源集合中码域资源的数量是根据所述至少一个第二梳齿中的一个第二梳齿中的一个资源块内支持的码域资源的数量确定的。
示例性地,所述第一码域资源集合中包括的码域资源的数量,与所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量成正比。例如,所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量越大,则所述第一码域资源集合中包括的码域资源的数量越大。再如,所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量越小,则所述第一码域资源集合中包括的码域资源的数量越小。
在一些实施例中,所述第一码域资源集合中码域资源的数量根据以下信息确定:所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,所述PSFCH的周期。
换言之,所述第一终端设备可根据PSFCH的周期和所述一个梳齿内支持的码域资源的数量,确定所述PSFCH的周期内每一个时隙在所述一个梳齿内支持的码域资源中或所述一个资源块内支持的码域资源中占据的码域资源的数量。
示例性地,假设所述一个梳齿内支持的码域资源的数量为N CS1,所述PSFCH的周期为P,所述PSFCH的周期内每一个PSSCH时隙对应的码域资源的数量为N CS1/P,即所述第一PSSCH所在的第一时隙对应的所述第一码域资源集合中包括的码域资源的数量为N CS1/P。在一些实施方式中,可以根据资源池配置信息确定一个梳齿内支持的码域资源的数量N CS1和PSFCH的周期P,其中,N CS1能够被P整除。应理解,上式表示的是当N CS1能够被P整除的情况,若不能整除,还需要对上式进行向上取整或向下取整操作,本申请不做限定。
在一些实施例中,所述第一码域资源集合中码域资源的数量根据以下信息确定:所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,所述PSFCH的周期,所述PSSCH资源池内包括的梳齿数量和所述PSFCH时隙内包括的梳齿数量。
示例性地,所述第一码域资源集合中码域资源的数量为(N CS1/(P×K)),其中,N CS1表示所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,P表示所述PSFCH的周期,K是根据N 4和N 5确定的,N 4表示PSSCH资源池内包括的梳齿数量,N 5表示所述PSFCH时隙内包括的梳齿数量。
在一些实施例中,K=max(1,N 4/N 5)。
需要说明的是,本申请中,N 4和N 5可以相等,也可以不相等,本申请对此不作限定。
示例性的,一个PSSCH时隙中的一个梳齿在PSFCH时隙中对应的PSFCH传输资源集合包括的码域资源数量是:(N 5·N CS1)/(N 4·P)。应理解,上式表示的是当N 5·N CS1能够被N 4·P整除的情况,或N CS1能够被(P·K 1)整除的情况,若不能整除,还需要对上式进行向上取整或向下取整操作,本申请不做限定,其中K 1=N 4/N 5
例如,若N 4=K 1·N 5,并且K 1为正整数,则一个PSSCH时隙中的一个梳齿在PSFCH时隙中对应的 PSFCH传输资源集合包括的码域资源数量是:N CS1/(P·K 1)或(N 5·N CS1)/(N 4·P);否则,一个PSSCH时隙中的一个梳齿在PSFCH时隙中对应的PSFCH传输资源集合包括的码域资源数量是:N CS1/P。换言之,若N 4=K 1·N 5,并且K1为正整数,则一个PSSCH时隙中的一个梳齿在PSFCH时隙中对应的PSFCH传输资源集合包括的码域资源数量可以是:(N 5·N CS1)/(N 4·P);若N 5=K 2·N 4,并且K 2为正整数,则一个PSSCH时隙中的一个梳齿在PSFCH时隙中对应的PSFCH传输资源集合包括的码域资源数量可以是:N CS1/P。
再如,若N 4大于N 5,则一个PSSCH时隙中的一个梳齿在PSFCH时隙中对应的PSFCH传输资源集合包括的码域资源数量是:(N 5·N CS1)/(N 4·P);否则,一个PSSCH时隙中的一个梳齿在PSFCH时隙中对应的PSFCH传输资源集合包括的码域资源数量是:N CS1/P。换言之,若N 4大于N 5,则一个PSSCH时隙中的一个梳齿在PSFCH时隙中对应的PSFCH传输资源集合包括的码域资源数量可以是:(N 5·N CS1)/(N 4·P);若N 4小于或等于N 5,则一个PSSCH时隙中的一个梳齿在PSFCH时隙中对应的PSFCH传输资源集合包括的码域资源数量可以是:N CS1/P。
在一些实施例中,所述第一PSSCH占据至少一个第三资源块集合中每一个第三资源块集合内的至少一个第一梳齿,且所述第一PSFCH所在的时隙为第二时隙,所述第二传输资源集合包括至少一个第四资源块集合中每一个第四资源块集合内的至少一个第二梳齿,所述第一码域资源集合为所述至少一个第一梳齿中的一个第一梳齿在所述第二时隙包括的PSFCH传输集合占据的码域资源的数量,所述第二传输资源集合包括的码域资源的数量根据所述至少一个第四资源块集合、所述至少一个第二梳齿的数量和所述第一码域资源集合包括的码域资源的数量确定。
示例性地,所述第一PSSCH(占据N 1个第一梳齿)所对应的PSFCH传输集合包括的传输资源数量为:N 7×N 3×(N CS1/(P×K));其中N 7表示所述第一PSSCH占据的N 6个第三资源块集合所对应的第四资源块集合的数量,N 3表示所述第一PSSCH占据的N 1个第一梳齿所对应的第二梳齿的数量,K是根据N 4和N 5确定的,N 4表示PSSCH资源池内包括的梳齿数量,N 5表示所述PSFCH时隙内包括的梳齿数量。在一种实现方式中,K=max(1,N 4/N 5)。
换言之,所述第二传输资源集合包括的传输资源的数量可以为:N 7×N 3×(N CS1/(P×K))或N 7×N 3×(N CS1/P)。
下面结合附图对PSSCH资源池包括的梳齿数N 4和PSFCH资源池包括的梳齿数N 5不相同时,确定所述第一码域资源集合中码域资源的数量的实现方式进行示例性说明。
在一些实施例中,假设N 4=K 1·N 5,K 1为正整数,N 4表示PSSCH资源池内包括的梳齿的数量,N 5表示所述PSFCH时隙内包括的梳齿的数量。也即是说,PSSCH资源池包括的梳齿的数量大于PSFCH资源池包括的梳齿的数量,即,PSSCH资源池中每K 1个第一梳齿对应PSFCH时隙中的一个第二梳齿,因此,在一个PSFCH时隙对应的P个PSSCH时隙中,除了不同时隙的PSSCH在对应的PSFCH时隙中的传输资源需要码分复用(Code Division Multiplexing,CDM)之外,一个PSSCH时隙中不同梳齿在对应的PSFCH时隙中的传输资源也需要进行码分复用,以实现在一个时隙中通过码分复用的方式传输多个时隙的PSSCH对应的PSFCH。
结合图18来说,假设PSSCH资源池包括4个梳齿(即N 4=4),分别为梳齿0、梳齿1、梳齿2和梳齿3;PSFCH时隙包括2个梳齿(即N 5=2),分别为梳齿0和梳齿1。则每K 1个(N 4/N 5=2,即K 1=2)PSSCH的梳齿对应一个PSFCH时隙的梳齿,即该K 1个PSSCH的梳齿中的每一个梳齿上发送的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙中相同的梳齿,例如,PSSCH时隙中的梳齿0和梳齿1对应于PSFCH时隙中的梳齿0,PSSCH时隙中的梳齿2和梳齿3对应于PSFCH时隙中的梳齿1。此时,第一终端设备可以根据PSFCH的周期以及K 1对一个梳齿内支持的码域资源进行分组,以确定所述第一码域资源集合中码域资源的数量,示例性地,所述第一码域资源集合中码域资源的数量可以是N CS2=N CS1/(P·K 1)。
具体而言,由于K 1=2,因此PSSCH时隙中的每2个梳齿对应PSFCH时隙中的一个梳齿,例如PSSCH时隙中的梳齿0和梳齿1对应PSFCH时隙中的梳齿0,即PSSCH时隙中的梳齿0和/或梳齿1上发送的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙中的梳齿0;PSSCH时隙中的梳齿2和梳齿3对应PSFCH时隙中的梳齿1,即PSSCH时隙中的梳齿2和/或梳齿3上发送的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙中的梳齿1。
假设N CS1=24,对应的码域资源的索引范围包括[0,23],P=4,K 1=2,则N CS2=3;即一个PSSCH时隙的一个梳齿对应PSFCH时隙中的3个码域资源。例如,PSSCH时隙7中的梳齿0对应PSFCH时隙中的梳齿0的码域资源[0,2],PSSCH时隙7中的梳齿1对应PSFCH时隙中的梳齿0的码域资源[3,5];PSSCH时隙8中的梳齿0对应PSFCH时隙中的梳齿0的码域资源[6,8],PSSCH时隙8中的梳齿1对应PSFCH时隙中的梳齿0的码域资源[9,11];PSSCH时隙9中的梳齿0对应PSFCH时隙中的梳齿0 的码域资源[12,14],PSSCH时隙9中的梳齿1对应PSFCH时隙中的梳齿0的码域资源[15,17];PSSCH时隙10中的梳齿0对应PSFCH时隙中的梳齿0的码域资源[18,20],PSSCH时隙10中的梳齿1对应PSFCH时隙中的梳齿0的码域资源[21,23]。类似的,PSSCH时隙7中的梳齿2对应PSFCH时隙中的梳齿1的码域资源[0,2],PSSCH时隙7中的梳齿3对应PSFCH时隙中的梳齿1的码域资源[3,5];PSSCH时隙8中的梳齿2对应PSFCH时隙中的梳齿1的码域资源[6,8],PSSCH时隙8中的梳齿3对应PSFCH时隙中的梳齿1的码域资源[9,11];PSSCH时隙9中的梳齿2对应PSFCH时隙中的梳齿1的码域资源[12,14],PSSCH时隙9中的梳齿3对应PSFCH时隙中的梳齿1的码域资源[15,17];PSSCH时隙10中的梳齿2对应PSFCH时隙中的梳齿1的码域资源[18,20],PSSCH时隙10中的梳齿3对应PSFCH时隙中的梳齿1的码域资源[21,23]。
需要说明的是,在本申请实施例中,PSSCH时隙X中的梳齿Y对应PSFCH时隙中的梳齿Z的码域资源[A,B],表示的是在PSSCH时隙X的梳齿Y上传输的PSSCH,其对应的PSFCH的可用传输资源包括PSFCH时隙中的梳齿Z,并且其对应的PSFCH的可用码域资源包括码域资源集合[A,B]中的码域资源,其中,X表示时隙索引,Y,Z表示梳齿索引,A、B表示码域资源的索引。
由上可知,本实施例可以将时隙7至时隙10中的梳齿0和梳齿1分别与时隙12中的梳齿0的24个码域资源对应,将时隙7至时隙10中的梳齿2和梳齿3分别与时隙12中的梳齿1的24个码域资源对应,能够实现在一个时隙中通过码分复用的方式传输多个时隙的PSSCH对应的PSFCH。
在一些实施例中,假设N 5=K 2×N 4,K 2为正整数,N 4表示PSSCH资源池内包括的梳齿的数量,N 5表示所述PSFCH时隙内包括的梳齿的数量。也即是说,PSSCH资源池包括的梳齿的数量小于PSFCH时隙中包括的梳齿的数量,即,PSSCH资源池中1个梳齿对应PSFCH时隙中的K 2个梳齿,因此,在P个PSSCH时隙中,可以只对不同时隙的PSSCH对应的PSFCH时隙中的传输资源进行码分复用(CDM),即可实现在一个时隙中通过码分复用的方式传输多个时隙的PSSCH对应的PSFCH。
结合图19来说,假设PSSCH传输资源包括2个梳齿(即N 4=2),分别为梳齿0和梳齿1;PSFCH传输资源包括4个梳齿(即N 4=4),分别为梳齿0、梳齿1、梳齿2和梳齿3,则一个PSSCH的梳齿对应PSFCH时隙的K 2(N 5/N 4=2,即K 2=2)个梳齿,例如,PSSCH时隙中的梳齿0对应于PSFCH时隙中的梳齿0和梳齿1,即PSSCH时隙中的梳齿0上发送的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙中的梳齿0和梳齿1,PSSCH时隙中的梳齿1对应于PSFCH时隙中的梳齿2和梳齿3,即PSSCH时隙中的梳齿1上发送的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙中的梳齿2和梳齿3。此时,第一终端设备可以根据PSFCH的周期确定所述第一码域资源集合中码域资源的数量,示例性地,所述第一码域资源集合中码域资源的数量可以是N CS1/P。
具体而言,由于K 2=2,因此一个PSSCH的梳齿对应PSFCH时隙的2个梳齿,例如PSSCH时隙中的梳齿0对应PSFCH时隙中的梳齿0和梳齿1;PSSCH时隙中的梳齿1对应PSFCH时隙中的梳齿2和梳齿3。
假设N CS1=24,对应的码域资源的索引范围包括[0,23],P=4,K 2=2,则N CS2=6;即一个PSSCH时隙的一个梳齿对应PSFCH时隙中的6个码域资源。例如,PSSCH时隙7中的梳齿0对应PSFCH时隙中的梳齿0的码域资源[0,5]和梳齿1的码域资源[0,5];PSSCH时隙8中的梳齿0对应PSFCH时隙中的梳齿0的码域资源[6,11]和梳齿1的码域资源[6,11];PSSCH时隙9中的梳齿0对应PSFCH时隙中的梳齿0的码域资源[12,17]和梳齿1的码域资源[12,17];PSSCH时隙10中的梳齿0对应PSFCH时隙中的梳齿0的码域资源[18,23]和梳齿1的码域资源[18,23]。类似的,PSSCH时隙7中的梳齿1对应PSFCH时隙中的梳齿2的码域资源[0,5]和梳齿3的码域资源[0,5];PSSCH时隙8中的梳齿1对应PSFCH时隙中的梳齿2的码域资源[6,11]和梳齿3的码域资源[6,11];PSSCH时隙9中的梳齿1对应PSFCH时隙中的梳齿2的码域资源[12,17]和梳齿3的码域资源[12,17];PSSCH时隙10中的梳齿1对应PSFCH时隙中的梳齿2的码域资源[18,23]和梳齿3的码域资源[18,23]。
需要说明的是,在本申请实施例中,PSSCH时隙X中的梳齿Y对应PSFCH时隙中的梳齿Z的码域资源[A,B]和梳齿Q的码域资源[C,D],表示的是在PSSCH时隙X的梳齿Y上传输的PSSCH,其对应的PSFCH的可用传输资源包括PSFCH时隙中的梳齿Z和梳齿Q,并且其对应的PSFCH的可用码域资源包括梳齿Z的码域资源集合[A,B]中的码域资源和梳齿Q的码域资源集合[C,D]中的码域资源,其中,X表示时隙索引,Y,Z,Q表示梳齿索引,A、B、C、D表示码域资源的索引。
由上可知,本实施例可以将时隙7至时隙10中的梳齿0分别与时隙12中的梳齿0的24个码域资源和梳齿1的24个码域资源对应,将时隙7至时隙10中的梳齿1分别与时隙12中的梳齿2的24个码域资源和梳齿3的24个码域资源对应,能够实现在一个时隙中通过码分复用的方式传输多个时隙的PSSCH对应的PSFCH。
在一些实施例中,假设N 5=K 2×N 4,K 2为正整数,N 4表示PSSCH资源池内包括的梳齿数量,N 5表 示所述PSFCH时隙内包括的梳齿数量。此时,在P个PSSCH时隙中,可以对不同时隙的PSSCH对应的PSFCH时隙中的传输资源进行频分复用(FDM)和码分复用(CDM),从而实现在一个时隙中通过码分复用的方式传输多个时隙的PSSCH对应的PSFCH。
结合图19来说,假设PSSCH传输资源包括2个梳齿(即N 4=2),分别为梳齿0和梳齿1;PSFCH传输资源包括4个梳齿(即N 5=4),分别为梳齿0、梳齿1、梳齿2和梳齿3。PSSCH时隙7中的梳齿0上传输的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙12中的梳齿0;PSSCH时隙7中的梳齿1上传输的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙12中的梳齿1;PSSCH时隙8中的梳齿0上传输的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙12中的梳齿2;PSSCH时隙8中的梳齿1上传输的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙12中的梳齿3;PSSCH时隙9中的梳齿0上传输的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙12中的梳齿0;PSSCH时隙9中的梳齿1上传输的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙12中的梳齿1;PSSCH时隙10中的梳齿0上传输的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙12中的梳齿2;PSSCH时隙10中的梳齿1上传输的PSSCH,其对应的PSFCH的传输资源包括PSFCH时隙12中的梳齿3。此时,第一终端设备可以根据如下信息确定所述第一码域资源集合中码域资源的数量:PSFCH的周期、PSSCH资源池包括的梳齿数量N 4、PSFCH时隙内包括的梳齿数量N 5。示例性地,所述第一码域资源集合中码域资源的数量可以是K 2×N CS1/P,其中,K 2=N 4/N 5
假设N CS1=24,对应的码域资源的索引范围包括[0,23],P=4,K 2=2,则N CS2=12;即一个PSSCH时隙的一个梳齿对应PSFCH时隙中的12个码域资源。例如,PSSCH时隙7中的梳齿0对应于PSFCH时隙12中的梳齿0的码域资源[0,11];PSSCH时隙7中的梳齿1对应于PSFCH时隙12中的梳齿1的码域资源[0,11];PSSCH时隙8中的梳齿0对应于PSFCH时隙12中的梳齿2的码域资源[0,11];PSSCH时隙8中的梳齿1对应于PSFCH时隙12中的梳齿3的码域资源[0,11];PSSCH时隙9中的梳齿0对应于PSFCH时隙12中的梳齿0的码域资源[12,23];PSSCH时隙9中的梳齿1对应于PSFCH时隙12中的梳齿1的码域资源[12,23];PSSCH时隙10中的梳齿0对应于PSFCH时隙12中的梳齿2的码域资源[12,23];PSSCH时隙10中的梳齿1对应于PSFCH时隙12中的梳齿3的码域资源[12,23]。由此可见,时隙7中的梳齿上传输的PSSCH和时隙8中的梳齿上传输的PSSCH所对应的PSFCH在时隙12中对应不同的梳齿,即频分复用;时隙9中的梳齿上传输的PSSCH和时隙10中的梳齿上传输的PSSCH所对应的PSFCH在时隙12中对应不同的梳齿,即频分复用;时隙7中的梳齿上传输的PSSCH和时隙9中的梳齿上传输的PSSCH所对应的PSFCH在时隙12中对应相同的梳齿,但是对应不同的码域资源,即码分复用;时隙8中的梳齿上传输的PSSCH和时隙10中的梳齿上传输的PSSCH所对应的PSFCH在时隙12中对应相同的梳齿,但是对应不同的码域资源,即码分复用。
需要说明的是,在本申请实施例中,PSSCH时隙X中的梳齿Y对应于PSFCH时隙Z中的梳齿Q的码域资源[A,B],表示的是在PSSCH时隙X的梳齿Y上传输的PSSCH,其对应的PSFCH的可用传输资源包括PSFCH时隙Z中的梳齿Q,并且其对应的PSFCH的可用码域资源包括码域资源集合[A,B]中的码域资源,其中,X,Z表示时隙索引,Y,Q表示梳齿索引,A、B表示码域资源的索引。
在一些实施例中,所述方法200还可包括:
基于以下信息中的至少一种确定所述第一码域资源集合中码域资源对应的索引信息:
所述第一时隙的索引;
所述至少一个第一梳齿的信息;
所述第一码域资源集合中码域资源的数量;
所述一个梳齿支持的码域资源信息;
所述一个资源块支持的码域资源信息。
可选的,所述至少一个第一梳齿的信息包括以下至少一种:
所述第一PSSCH占据的第一个第一梳齿的索引信息;
所述第一PSSCH占据的第一梳齿包括的梳齿的数量;
所述第一PSSCH占据的所有第一梳齿的索引信息。
需要说明的是,假设所述第一PSFCH占用至少一个第二梳齿,则所述一个梳齿支持的码域资源信息可以理解为所述至少一个第二梳齿中的一个第二梳齿内支持的码域资源信息。可选的,所述码域资源信息可以是码域资源的索引信息,例如索引编号或索引值。
示例性地,所述第一终端设备可根据PSFCH的周期对所述一个梳齿内支持的码域资源进行分组,并在分组过程中确定所述第一码域资源集合中码域资源对应的索引信息。每个分组中的码域资源分别对应于PSFCH时隙所关联的P个PSSCH时隙中的一个PSSCH时隙。
例如,所述第一终端设备可按照以下公式,确定所述第一码域资源集合中码域资源对应的索引信息:
R=[0,1,……,N CS2-1]+p·N CS2;或
R=[0,1,……,(N CS2-1)·P]+p;
其中,R表示所述第一码域资源集合中包括的码域资源的索引,N CS2表示所述第一码域资源集合中码域资源的数量,p表示所述第一时隙的索引,p的取值范围为0,1,……,P-1,P表示所述PSFCH的周期。或者说,p表示一个PSFCH时隙所对应的P个PSSCH时隙中的第p个PSSCH时隙。当然,在其他可替代实施例中,p的取值范围也可以为1,2,……,P,本申请对此不作具体限定。
示例性地,所述第一PSSCH占据至少一个第一梳齿;所述第一终端设备可根据PSFCH的周期、所述至少一个第一梳齿的信息确定所述第一码域资源集合中码域资源对应的索引信息。
例如,所述第一终端设备可按照以下公式,确定所述第一码域资源集合中码域资源对应的索引信息:
R=f(P,I 梳齿,p,N CS2);
其中,R表示所述第一码域资源集合中包括的码域资源的索引,N CS2表示所述第一码域资源集合中码域资源的数量,p表示所述第一时隙的索引,p的取值范围为0,1,……,P-1,P表示所述PSFCH的周期。或者说,p表示一个PSFCH时隙所对应的P个PSSCH时隙中的第p个PSSCH时隙。当然,在其他可替代实施例中,p的取值范围也可以为1,2,……,P,本申请对此不作具体限定。I 梳齿表示根据所述至少一个第一梳齿确定的索引信息。
结合图18来说,PSFCH的周期P=4,PSSCH资源池包括4个梳齿,PSFCH时隙中包括2个梳齿,K 1=2,即PSSCH时隙中的2个梳齿对应PSFCH时隙中的一个梳齿。若PSFCH时隙中的一个梳齿内支持的码域资源的数量N CS1=24,对应的码域资源的索引范围包括[0,23],则根据PSFCH的周期可以确定一个PSSCH时隙的一个梳齿对应的码域资源的数量,即N CS2=3,即一个PSSCH时隙的一个梳齿对应PSFCH时隙中的3个码域资源。例如,PSSCH时隙7中的梳齿0对应PSFCH时隙中的梳齿0的码域资源[0,2],PSSCH时隙7中的梳齿1对应PSFCH时隙中的梳齿0的码域资源[3,5];PSSCH时隙8中的梳齿0对应PSFCH时隙中的梳齿0的码域资源[6,8],PSSCH时隙8中的梳齿1对应PSFCH时隙中的梳齿0的码域资源[9,11];PSSCH时隙9中的梳齿0对应PSFCH时隙中的梳齿0的码域资源[12,14],PSSCH时隙9中的梳齿1对应PSFCH时隙中的梳齿0的码域资源[15,17];PSSCH时隙10中的梳齿0对应PSFCH时隙中的梳齿0的码域资源[18,20],PSSCH时隙10中的梳齿1对应PSFCH时隙中的梳齿0的码域资源[21,23]。类似的,PSSCH时隙7中的梳齿2对应PSFCH时隙中的梳齿1的码域资源[0,2],PSSCH时隙7中的梳齿3对应PSFCH时隙中的梳齿1的码域资源[3,5];时隙8的PSSCH的梳齿2对应PSFCH时隙中的梳齿1的码域资源[6,8],PSSCH时隙8中的梳齿3对应PSFCH时隙中的梳齿1的码域资源[9,11];PSSCH时隙9中的梳齿2对应PSFCH时隙中的梳齿1的码域资源[12,14],PSSCH时隙9中的梳齿3对应PSFCH时隙中的梳齿1的码域资源[15,17];PSSCH时隙10中的梳齿2对应PSFCH时隙中的梳齿1的码域资源[18,20],PSSCH时隙10中的梳齿3对应PSFCH时隙中的梳齿1的码域资源[21,23]。进一步的,根据第一PSSCH占据的第一梳齿的信息确定第一码域资源集合中的码域资源对应的索引信息。例如,若第一PSSCH占据的第一梳齿包括时隙7中的梳齿0,则其对应的第一码域资源集合中码域资源对应的索引信息为[0,2];若第一PSSCH占据的第一梳齿包括时隙7中的梳齿1,则其对应的第一码域资源集合中码域资源对应的索引信息为[3,5];若第一PSSCH占据的第一梳齿包括时隙7中的梳齿0和梳齿1,则其对应的第一码域资源集合中码域资源对应的索引信息为[0,5];若第一PSSCH占据的第一梳齿包括时隙7中的梳齿1和梳齿2,则其对应的第一码域资源集合中码域资源对应的索引信息包括PSFCH时隙中梳齿0的码域资源[3,5]和梳齿1的码域资源[0,2]。
需要说明的是,在本申请实施例中,PSSCH时隙X中的梳齿Y对应PSFCH时隙中的梳齿Z的码域资源[A,B],表示的是在PSSCH时隙X的梳齿Y上传输的PSSCH,其对应的PSFCH的可用传输资源包括PSFCH时隙中的梳齿Z,并且其对应的PSFCH的可用码域资源包括码域资源集合[A,B]中的码域资源,其中,X表示时隙索引,Y,Z表示梳齿索引,A、B表示码域资源的索引。
在一些实施例中,所述方法200还可包括:
根据预配置信息或网络配置信息,获取所述一个梳齿支持的码域资源信息或所述一个资源块支持的码域资源信息。
换言之,所述一个梳齿支持的码域资源信息或所述一个资源块支持的码域资源信息通过预配置信息或网络配置信息获取。例如,第一终端设备可根据预配置信息或网络配置信息中的资源池配置信息,获取所述一个梳齿支持的码域资源信息或所述一个资源块支持的码域资源信息。可选的,所述资源池配置信息包括用于指示一个梳齿支持的循环移位对的指示信息,所述指示信息即可表示所述一个梳齿支持的码域资源信息。
在一些实施例中,所述方法200还可包括:
获取码域资源的索引信息和码域资源的对应关系,所述对应关系是预定义、预配置或网络配置的;
根据所述第一码域资源集合中码域资源对应的索引信息和所述对应关系,确定所述第一码域资源集合中包括的码域资源。
示例性地,所述对应关系可包括至少一个码域资源、所述至少一个码域资源中每一个码域资源的索引信息、一个梳齿内支持的码域资源的数量。
可选的,所述码域资源可以用循环移位对表示。可选的,所述码域资源的索引信息也可称为循环移位对的索引。可选的,所述一个梳齿内支持的码域资源的数量也可理解为一个梳齿内支持的循环移位对的数量。
在一些实施例中,所述第一码域资源集合中的第一码域资源包括第一循环移位对,所述第一循环移位对中的第一循环移位值根据所述第一码域资源的索引信息确定;所述第一循环移位对中的第二循环移位值根据所述第一循环移位值和一个梳齿内支持的循环移位对的最大数量确定,其中,所述一个梳齿内支持的循环移位对的最大数量根据一个梳齿内支持的码域资源的最大数量确定;或者,所述第二循环移位值根据所述第一循环移位值和一个资源块内支持的循环移位对的最大数量确定,其中,所述一个资源块内支持的循环移位对的最大数量根据一个资源块内支持的码域资源的最大数量确定。
示例性地,所述一个梳齿内支持的循环移位对的最大数量等于所述一个梳齿内支持的码域资源的最大数量。在一些实施方式中,所述一个梳齿内支持的循环移位对的最大数量根据预定义、预配置信息或网络配置信息确定。在一些实施方式中,所述一个梳齿内支持的码域资源的最大数量根据预定义、预配置信息或网络配置信息确定。
示例性地,所述一个资源块内支持的循环移位对的最大数量等于所述一个资源块内支持的码域资源的最大数量。在一些实施方式中,所述一个资源块内支持的循环移位对的最大数量根据预定义、预配置信息或网络配置信息确定。在一些实施方式中,所述一个资源块内支持的码域资源的最大数量根据预定义、预配置信息或网络配置信息确定。
在一些实施例中,所述第一循环移位对中的第一循环移位值根据所述第一码域资源的索引信息确定,包括:所述第一循环移位值根据所述第一码域资源的索引信息和所述一个梳齿支持的码域资源的数量确定,或者,所述第一循环移位值根据所述第一码域资源的索引信息和所述一个资源块支持的码域资源的数量确定。
示例性地,所述第一终端设备可以先根据所述第一码域资源的索引信息和所述一个梳齿内支持的码域资源的数量,确定所述第一循环移位值对应的数值m0,然后基于所述第一循环移位值对应的数值m0,确定所述第一循环移位值;进一步的,所述第一终端设备可以根据所述第一循环移位值对应的数值m0和所述一个梳齿内支持的循环移位对的最大数量(或一个资源块内支持的码域资源的最大数量),确定所述第二循环移位值对应的数值m1,然后基于所述第二循环移位值对应的数值m1,确定所述第二循环移位值,或者,所述第一终端设备可以根据所述第一循环移位值对应的数值m0和所述一个梳齿内支持的循环移位对的最大数量(或一个资源块内支持的码域资源的最大数量)确定所述第二循环移位值。例如,所述第一终端设备可将所述第一循环移位值和所述一个梳齿内支持的循环移位对的最大数量(或一个资源块内支持的码域资源的最大数量)的和,确定为所述第二循环移位值对应的数值m1;换言之,所述第二循环移位值对应的数值m1可以等于m0+N CS,total,其中,N CS,total表示所述一个梳齿内支持的循环移位对的最大数量(或一个资源块内支持的码域资源的最大数量)。可选的,所述一个梳齿内支持的码域资源的数量(或一个资源块内支持的码域资源的数量)为N CS1,其中,N CS1小于或等于N CS,total
当然,在其他可替代实施例中,所述第一循环移位值根据所述第一码域资源的索引信息和所述一个梳齿支持的循环移位对的数量确定。可选的,所述一个梳齿内支持的循环移位对的数量根据所述一个梳齿内支持的码域资源的数量确定。示例性地,所述一个梳齿内支持的循环移位对的数量等于所述一个梳齿内支持的码域资源的数量。
示例性地,若一个梳齿包括4个RB,当一个梳齿承载一个PSFCH信道时,PSFCH对应长度为48的序列,此时,相当于,一个梳齿内最大可以支持48个循环移位值,也即一个梳齿内最大可以对应24个循环移位对,即N CS,total=24。而所述一个梳齿内支持的码域资源的数量是根据预配置信息或网络配置信息获取到的。
下面结合表1所示的码域资源的索引和一个梳齿内支持的循环移位对的数量,确定所述第一循环移位对应的m0的实现方式进行说明。
表1码域资源的索引和码域资源的对应关系
Figure PCTCN2021131920-appb-000001
Figure PCTCN2021131920-appb-000002
如表1所示,假设N CS,total为24,当一个梳齿内支持的循环移位对的数量N CS1=6时,即一个梳齿内包括共计6个循环移位对,对于索引值为2的码域资源包括的第一循环移位对,所述第一循环移位对中的第一循环移位值对应的m0为8,所述第二循环移位值对应的m1为8+24=32。
作为一个示例,如图17所示,假设PSFCH的周期是4个时隙,即P=4,PSSCH与其关联的PSFCH之间的最小时间间隔是2个时隙,作为一个示例,PSSCH传输资源在时域上包括时隙7至时隙10,在频域上包括梳齿0至梳齿3;PSFCH传输资源包括时隙12中梳齿0至梳齿3;也即是说,时隙7至时隙10中发送的PSSCH对应的PSFCH都是在时隙12中进行传输;此时,若N CS,total=24,网络配置的N CS1=8,则N CS2=2(即N CS2=N CS1/P=8/4=2),则利用公式R=[0,1,……,N CS2-1]+p·N CS2,确定的与PSFCH时隙所关联的4个PSSCH时隙中每一个时隙对应的码域资源集合中包括的码域资源的索引,以及其对应的m0如下:
第一个PSSCH时隙对应的码域资源集合中包括的码域资源的索引为:0,1;其对应的m0取值:0,3。
第二个PSSCH时隙对应的码域资源集合中包括的码域资源的索引为:2,3;其对应的m0取值:6,9。
第三个PSSCH时隙对应的码域资源集合中包括的码域资源的索引为:4,5;其对应的m0取值:12,15。
第四个PSSCH时隙对应的码域资源集合中包括的码域资源的索引为:6,7;其对应的m0取值:18,21。
作为另一个示例,如图17所示,假设PSFCH的周期是4个时隙,即P=4,PSSCH与其关联的PSFCH之间的最小时间间隔是2个时隙,作为一个示例,PSSCH传输资源在时域上包括时隙7至时隙10,在频域上包括梳齿0至梳齿3;PSFCH传输资源包括时隙12中梳齿0至梳齿3;也即是说,时隙7至时隙10中发送的PSSCH对应的PSFCH都是在时隙12中进行传输;此时,若N CS,total=24,网络配置的N CS1=8,则N CS2=2(即N CS2=N CS1/P=8/4=2),则利用公式R=[0,1,……,(N CS2-1)·P]+p,确定的与PSFCH时隙所对应的4个PSSCH时隙中每一个时隙对应的码域资源集合中包括的码域资源的索引,以及其对应的m0如下:
第一个PSSCH时隙对应的码域资源集合中包括的码域资源的索引为:0,4;其对应的m0取值:0,12。
第二个PSSCH时隙对应的码域资源集合中包括的码域资源的索引为:1,5;其对应的m0取值:3,15。
第三个PSSCH时隙对应的码域资源集合中包括的码域资源的索引为:2,6;其对应的m0取值:6,18。
第四个PSSCH时隙对应的码域资源集合中包括的码域资源的索引为:3,7;其对应的m0取值:9,21。
结合图17来说,假设PSFCH的周期是4个时隙,即P=4,PSSCH与其关联的PSFCH之间的最小时间间隔是2个时隙,作为一个示例,PSSCH传输资源在时域上包括时隙7至时隙10,在频域上包括梳齿0至梳齿3;PSFCH传输资源包括时隙12中梳齿0至梳齿3;也即是说,时隙7至时隙10中发送的PSSCH对应的PSFCH都是在时隙12中进行传输;此时,若N CS,total=24,网络配置的N CS1=8,则N CS2=2(即N CS2=N CS1/P=8/4=2),即一个PSSCH时隙对应于PSFCH时隙中的2个码域资源,所述2个码域资源中的每一个码域资源包括第一循环移位值和第二循环移位值。对于一个PSFCH周期内的第一个PSSCH时隙中发送的PSSCH(即时隙7中发送的PSSCH),利用公式R=[0,1,……,N CS2-1]+p·N CS2可知,确定与该PSSCH对应的PSFCH的传输资源包括的2个码域资源的索引分别为索引0和索引1,如上述表1所示,由于N CS1=8,因此所述2个码域资源包括的2个第一循环移位值对应的m0分别为0和3;此外,所述2个码域资源包括的2个第二循环移位值对应的m1为m0+24,即所述2个码域资源包括的2个第二循环移位值对应的m1分别为24和27。
需要说明的是,本申请对所述第一终端设备基于循环移位值确定对应的序列的实现方式不作限定。例如,作为一个示例,所述第一PSSCH对应的否定确认NACK序列或所述第一PSSCH对应的确认ACK序列,可根据下面的方式确定:
Figure PCTCN2021131920-appb-000003
Figure PCTCN2021131920-appb-000004
其中,
Figure PCTCN2021131920-appb-000005
表示一个梳齿包括的RB数,
Figure PCTCN2021131920-appb-000006
表示一个RB包括的子载波数;α表示循环移位,具体的,根据上述循环移位对的第一循环移位值m0或第二循环移位值m1确定α。
在一些实施例中,所述第一循环移位值用于确定所述第一PSSCH对应的否定确认NACK序列,所述第二循环移位值用于确定所述第一PSSCH对应的确认ACK序列。当然,在其他可替代实施例中, 也可以是所述第一循环移位值用于确定所述第一PSSCH对应的确认ACK序列,所述第二循环移位值用于确定所述第一PSSCH对应的否定确认NACK序列,本申请对此不作具体限定。
本实施例中,由于侧行反馈信息通过序列承载,因此可以通过不同的循环移位值生成不同的序列;或者说,若ACK序列和NACK序列分别对应不同的序列,则对应不同的循环移位值,由此,可以将一个循环移位对包括两个循环移位值确定为一个码域资源,即可以根据一个码域资源包括的两个循环移位值可以分别生成ACK和NACK的序列。
需要说明的是,所述第一码域资源可以是所述第一码域资源集合中的任意码域资源。换言之,所述一个梳齿支持的码域资源或所述一个资源块支持的码域资源包括所述第一码域资源;相应的,所述一个梳齿支持的码域资源信息或所述一个资源块支持的码域资源信息包括所述第一码域资源的索引信息。可选的,所述第一码域资源的索引信息可以是所述第一码域资源的索引值或索引编号。
在一些实施例中,所述方法200还可包括:
根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第二传输资源集合中确定所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
换言之,所述第一终端设备可基于所述第一PSFCH的发送端的标识信息和所述第一PSFCH的接收端的标识信息,在可用于传输所述第一PSFCH的第二传输资源集合中确定所述第一传输资源。
可选的,按照以下公式,在所述第二传输资源集合中确定所述第一传输资源的索引:
S=(P ID+M ID)mod N total
其中,S表示所述第一传输资源的索引,P ID表示所述第二终端设备的标识,M ID表示所述第一终端设备的标识,N total表示所述第二传输资源集合中包括的PSFCH传输资源的数量,mod表示取模运算。
可选的,所述第一终端设备的标识信息根据所述第一终端设备在通信组内的成员标识确定;或所述第一终端设备的标识信息为0。
示例性地,所述第一终端设备的标识信息为所述第一终端设备在通信组内的成员标识。
示例性地,对于组播通信,并且所述第一终端设备反馈ACK或NACK,所述第一终端设备的标识信息根据所述第一终端设备在通信组内的成员ID(member identity)确定;对于组播通信,并且所述第一终端设备只反馈NACK(即NACK-only的反馈方式),所述第一终端设备的标识信息为0;对于单播通信,所述第一终端设备的标识信息为0。当然,在其他可替代实施例中,所述第一终端设备的标识信息也可设置为其他数值,本申请对此不作限定。
可选的,所述第二终端设备的标识信息根据所述第一PSSCH对应的侧行控制信息SCI中携带的源标识信息确定。
示例性地,所述第二终端设备的标识信息为所述第一PSSCH对应的侧行控制信息SCI中携带的源标识信息。
图20是本申请实施例提供的无线通信方法300的示意性流程图。所述方法300可以由第二终端设备执行。所述第二终端设备可以是用于发送PSSCH的发送端,例如,所述第二终端设备可以是上文涉及的终端B,所述第二终端设备也可以是上文涉及的终端A。
如图20所示,所述方法300可包括:
S310,在第一时隙发送第一物理侧行共享信道PSSCH;
S320,在第二时隙包括的PSFCH传输资源集合中确定第一传输资源;
S330,在所述第一传输资源上接收第一PSFCH;
其中,所述第二时隙是根据所述第一时隙确定的,所述第一PSFCH承载响应于所述第一PSSCH的侧行反馈信息。
在一些实施例中,所述第一PSSCH占据至少一个子信道;
所述S320可包括:
根据所述第一PSSCH所在的资源块集合的信息和所述第一PSSCH占据的子信道对应的索引信息,确定第一传输资源集合;
其中,所述第一传输资源集合中包括所述第一传输资源,所述第一PSSCH占据的子信道对应的索引信息包括以下信息中的至少一种:
所述第一PSSCH占据的子信道中第一个子信道对应的索引信息;
所述第一PSSCH占据的所有子信道对应的索引信息;
所述第一PSSCH占据的子信道的数量。
在一些实施例中,所述第一PSSCH所在的资源块集合包括至少一个第一资源块集合,所述第一传输资源集合包括至少一个第二资源块集合,其中,所述至少一个第二资源块集合是根据所述至少一个第一资源块集合的信息确定的。
在一些实施例中,所述方法300还可包括:
根据所述至少一个第一资源块集合对应的索引信息确定所述至少一个第二资源块集合,其中,所述至少一个第一资源块集合对应的索引信息包括以下信息中至少一种:
所述至少一个第一资源块集合中的第一个第一资源块集合对应的索引信息;
所述至少一个第一资源块集合中所有的第一资源块集合对应的索引信息;
所述至少一个第一资源块集合中的包括的资源块集合的数量。
在一些实施例中,所述第一传输资源集合中包括的传输资源按照下面的顺序进行索引:
先按照频域资源进行索引,再按照码域资源进行索引。
在一些实施例中,所述先按照频域资源进行索引,包括:
先按照资源块集合索引从低到高的顺序进行索引,再按照物理资源块索引从低到高的顺序进行索引;或者;
先按照物理资源块索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
在一些实施例中,所述方法300还可包括:
根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第一传输资源集合中确定所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
在一些实施例中,所述第二终端设备的标识信息根据所述第一PSSCH关联的SCI中携带的源标识信息确定,所述第一终端设备的标识信息根据所述第一终端设备的组成员标识信息确定,或者,所述第一终端设备的标识信息为0。
在一些实施例中,所述第一PSSCH占据至少一个第一梳齿;
所述S320可包括:
根据以下信息中的至少一种在所述第二时隙中确定第二传输资源集合:
所述第一PSSCH所在的资源块集合的信息;
所述至少一个第一梳齿的信息;
一个梳齿内支持的码域资源的数量;
一个梳齿支持的码域资源信息;
一个资源块内支持的码域资源的数量;
一个资源块支持的码域资源信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量;
其中,所述第二传输资源集合中包括所述第一传输资源。
在一些实施例中,所述至少一个第一梳齿的信息包括以下信息中的至少一种:
所述至少一个第一梳齿中第一个第一梳齿对应的索引信息;
所述至少一个第一梳齿中包括的所有梳齿对应的索引信息;
所述至少一个第一梳齿中包括的梳齿的数量。
在一些实施例中,所述第二传输资源集合中包括的传输资源按照下面的顺序进行索引:
先按照频域资源进行索引,再按照码域资源进行索引。
在一些实施例中,所述先按照频域资源进行索引,包括:
先按照资源块集合索引从低到高的顺序进行索引,再按照梳齿索引从低到高的顺序进行索引;或者;
先按照梳齿索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
在一些实施例中,所述第一PSSCH所在的资源块集合包括至少一个第三资源块集合,所述第二传输资源集合包括至少一个第四资源块集合,其中,所述至少一个第四资源块集合是根据所述至少一个第三资源块集合的信息确定的。
在一些实施例中,所述方法300还可包括:
根据所述至少一个第三资源块集合对应的索引信息确定所述至少一个第四资源块集合,其中,所述至少一个第三资源块集合对应的索引信息包括以下信息中至少一种:
所述至少一个第三资源块集合中的第一个第三资源块集合对应的索引信息;
所述至少一个第三资源块集合中所有的第三资源块集合对应的索引信息;
所述至少一个第三资源块集合中的包括的资源块集合的数量。
在一些实施例中,所述第二传输资源集合包括至少一个第二梳齿,所述第二梳齿是根据如下信息中 的至少一种确定的:
所述第一PSSCH所在的资源块集合的信息;
所述至少一个第一梳齿的信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量。
在一些实施例中,所述第二传输资源集合包括第一码域资源集合,所述第一码域资源集合是根据如下信息中的至少一种确定的:
一个梳齿内支持的码域资源的数量;
一个梳齿支持的码域资源信息;
一个资源块内支持的码域资源的数量;
一个资源块支持的码域资源信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量。
在一些实施例中,所述第一码域资源集合中码域资源的数量根据以下信息确定:所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,所述PSFCH的周期,所述PSSCH资源池内包括的梳齿数量和所述PSFCH时隙内包括的梳齿数量。
在一些实施例中,所述第一码域资源集合中码域资源的数量为(N CS1/(P×K)),其中,N CS1表示所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,P表示所述PSFCH的周期,K是根据N 4和N 5确定的,N 4表示PSSCH资源池内包括的梳齿数量,N 5表示所述PSFCH时隙内包括的梳齿数量。
在一些实施例中,K=max(1,N 4/N 5)。
在一些实施例中,所述方法300还可包括:
基于以下信息中的至少一种确定所述第一码域资源集合中码域资源对应的索引信息:
所述第一时隙的索引;
所述至少一个第一梳齿的信息;
所述第一码域资源集合中码域资源的数量;
所述一个梳齿支持的码域资源信息;
所述一个资源块支持的码域资源信息。
在一些实施例中,所述方法300还可包括:
根据预配置信息或网络配置信息,获取所述一个梳齿支持的码域资源信息或所述一个资源块支持的码域资源信息。
在一些实施例中,所述方法300还可包括:
获取码域资源的索引信息和码域资源的对应关系,所述对应关系是预定义、预配置或网络配置的;
根据所述第一码域资源集合中码域资源对应的索引信息和所述对应关系,确定所述第一码域资源集合中包括的码域资源。
在一些实施例中,所述第一码域资源集合中的第一码域资源包括第一循环移位对,所述第一循环移位对中的第一循环移位值根据所述第一码域资源的索引信息确定;所述第一循环移位对中的第二循环移位值根据所述第一循环移位值和一个梳齿内支持的循环移位对的最大数量确定,其中,所述一个梳齿内支持的循环移位对的最大数量根据一个梳齿内支持的码域资源的最大数量确定;或者,所述第二循环移位值根据所述第一循环移位值和一个资源块内支持的循环移位对的最大数量确定,其中,所述一个资源块内支持的循环移位对的最大数量根据一个资源块内支持的码域资源的最大数量确定。
在一些实施例中,所述第一循环移位对中的第一循环移位值根据所述第一码域资源的索引信息确定,包括:
所述第一循环移位值根据所述第一码域资源的索引信息和所述一个梳齿支持的码域资源的数量确定,或者,
所述第一循环移位值根据所述第一码域资源的索引信息和所述一个资源块支持的码域资源的数量确定。
在一些实施例中,所述第一循环移位值用于确定所述第一PSSCH对应的否定确认NACK序列,所 述第二循环移位值用于确定所述第一PSSCH对应的确认ACK序列。
在一些实施例中,所述方法300还可包括:
根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第二传输资源集合中确定所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
在一些实施例中,所述第二终端设备的标识信息根据所述第一PSSCH关联的SCI中携带的源标识信息确定,所述第一终端设备的标识信息根据所述第一终端设备的组成员标识信息确定,或者,所述第一终端设备的标识信息为0。
需要说明的是,所述方法300中的相关术语和实现方式可参考方法200中的相关方案,为避免重复,此处不再赘述。
另外,所述方法200和所述方法300仅为本申请的示例,在确定至少一个第二梳齿的过程中可以只包括所述方法200或300中的全部或部分步骤,上述的各个步骤中的一个或多个可以合并为一个步骤,本申请对此不作具体限定,
应理解,在本申请的各种方法实施例中,其中,时隙可以表示一个资源池内的逻辑时隙,梳齿资源可以表示一个资源池内的梳齿资源。
以上结合附图详细描述了本申请的优选实施方式,但是,本申请并不限于上述实施方式中的具体细节,在本申请的技术构思范围内,可以对本申请的技术方案进行多种简单变型,这些简单变型均属于本申请的保护范围。例如,在上述具体实施方式中所描述的各个具体技术特征,在不矛盾的情况下,可以通过任何合适的方式进行组合,为了避免不必要的重复,本申请对各种可能的组合方式不再另行说明。又例如,本申请的各种不同的实施方式之间也可以进行任意组合,只要其不违背本申请的思想,其同样应当视为本申请所公开的内容。
还应理解,在本申请的各种方法实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。此外,在本申请实施例中,术语“下行”和“上行”用于表示信号或数据的传输方向,其中,“下行”用于表示信号或数据的传输方向为从站点发送至小区的用户设备的第一方向,“上行”用于表示信号或数据的传输方向为从小区的用户设备发送至站点的第二方向,例如,“下行信号”表示该信号的传输方向为第一方向。另外,本申请实施例中,术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系。具体地,A和/或B可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
上文结合附图详细描述了本申请的方法实施例,下文结合图21至图24,详细描述本申请的装置实施例。
图21是本申请实施例的第一终端设备400的示意性框图。
如图21所示,所述第一终端设备400可包括:
接收单元410,用于在第一时隙接收第一物理侧行共享信道PSSCH;
确定单元420,用于在第二时隙包括的PSFCH传输资源集合中确定第一传输资源;
发送单元430,用于在所述第一传输资源上发送第一PSFCH;
其中,所述第二时隙是根据所述第一时隙确定的,所述第一PSFCH承载响应于所述第一PSSCH的侧行反馈信息。
在一些实施例中,所述第一PSSCH占据至少一个子信道;
所述确定单元420具体用于:
根据所述第一PSSCH所在的资源块集合的信息和所述第一PSSCH占据的子信道对应的索引信息,确定第一传输资源集合;
其中,所述第一传输资源集合中包括所述第一传输资源,所述第一PSSCH占据的子信道对应的索引信息包括以下信息中的至少一种:
所述第一PSSCH占据的子信道中第一个子信道对应的索引信息;
所述第一PSSCH占据的所有子信道对应的索引信息;
所述第一PSSCH占据的子信道的数量。
在一些实施例中,所述第一PSSCH所在的资源块集合包括至少一个第一资源块集合,所述第一传输资源集合包括至少一个第二资源块集合,其中,所述至少一个第二资源块集合是根据所述至少一个第一资源块集合的信息确定的。
在一些实施例中,所述确定单元420还用于:
根据所述至少一个第一资源块集合对应的索引信息确定所述至少一个第二资源块集合,其中,所述至少一个第一资源块集合对应的索引信息包括以下信息中至少一种:
所述至少一个第一资源块集合中的第一个第一资源块集合对应的索引信息;
所述至少一个第一资源块集合中所有的第一资源块集合对应的索引信息;
所述至少一个第一资源块集合中的包括的资源块集合的数量。
在一些实施例中,所述第一传输资源集合中包括的传输资源按照下面的顺序进行索引:
先按照频域资源进行索引,再按照码域资源进行索引。
在一些实施例中,所述先按照频域资源进行索引,包括:
先按照资源块集合索引从低到高的顺序进行索引,再按照物理资源块索引从低到高的顺序进行索引;或者;
先按照物理资源块索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
在一些实施例中,所述确定单元420还用于:
根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第一传输资源集合中确定所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
在一些实施例中,所述第二终端设备的标识信息根据所述第一PSSCH关联的SCI中携带的源标识信息确定,所述第一终端设备的标识信息根据所述第一终端设备的组成员标识信息确定,或者,所述第一终端设备的标识信息为0。
在一些实施例中,所述第一PSSCH占据至少一个第一梳齿;
所述确定单元420具体用于:
根据以下信息中的至少一种在所述第二时隙中确定第二传输资源集合:
所述第一PSSCH所在的资源块集合的信息;
所述至少一个第一梳齿的信息;
一个梳齿内支持的码域资源的数量;
一个梳齿支持的码域资源信息;
一个资源块内支持的码域资源的数量;
一个资源块支持的码域资源信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量;
其中,所述第二传输资源集合中包括所述第一传输资源。
在一些实施例中,所述至少一个第一梳齿的信息包括以下信息中的至少一种:
所述至少一个第一梳齿中第一个第一梳齿对应的索引信息;
所述至少一个第一梳齿中包括的所有梳齿对应的索引信息;
所述至少一个第一梳齿中包括的梳齿的数量。
在一些实施例中,所述第二传输资源集合中包括的传输资源按照下面的顺序进行索引:
先按照频域资源进行索引,再按照码域资源进行索引。
在一些实施例中,所述先按照频域资源进行索引,包括:
先按照资源块集合索引从低到高的顺序进行索引,再按照梳齿索引从低到高的顺序进行索引;或者;
先按照梳齿索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
在一些实施例中,所述第一PSSCH所在的资源块集合包括至少一个第三资源块集合,所述第二传输资源集合包括至少一个第四资源块集合,其中,所述至少一个第四资源块集合是根据所述至少一个第三资源块集合的信息确定的。
在一些实施例中,所述确定单元420还用于:
根据所述至少一个第三资源块集合对应的索引信息确定所述至少一个第四资源块集合,其中,所述至少一个第三资源块集合对应的索引信息包括以下信息中至少一种:
所述至少一个第三资源块集合中的第一个第三资源块集合对应的索引信息;
所述至少一个第三资源块集合中所有的第三资源块集合对应的索引信息;
所述至少一个第三资源块集合中的包括的资源块集合的数量。
在一些实施例中,所述第二传输资源集合包括至少一个第二梳齿,所述第二梳齿是根据如下信息中的至少一种确定的:
所述第一PSSCH所在的资源块集合的信息;
所述至少一个第一梳齿的信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量。
在一些实施例中,所述第二传输资源集合包括第一码域资源集合,所述第一码域资源集合是根据如下信息中的至少一种确定的:
一个梳齿内支持的码域资源的数量;
一个梳齿支持的码域资源信息;
一个资源块内支持的码域资源的数量;
一个资源块支持的码域资源信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量。
在一些实施例中,所述第一码域资源集合中码域资源的数量根据以下信息确定:所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,所述PSFCH的周期,所述PSSCH资源池内包括的梳齿数量和所述PSFCH时隙内包括的梳齿数量。
在一些实施例中,所述第一码域资源集合中码域资源的数量为(N CS1/(P×K)),其中,N CS1表示所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,P表示所述PSFCH的周期,K是根据N 4和N 5确定的,N 4表示PSSCH资源池内包括的梳齿数量,N 5表示所述PSFCH时隙内包括的梳齿数量。
在一些实施例中,K=max(1,N 4/N 5)。
在一些实施例中,所述确定单元420还用于:
基于以下信息中的至少一种确定所述第一码域资源集合中码域资源对应的索引信息:
所述第一时隙的索引;
所述至少一个第一梳齿的信息;
所述第一码域资源集合中码域资源的数量;
所述一个梳齿支持的码域资源信息;
所述一个资源块支持的码域资源信息。
在一些实施例中,所述确定单元420还用于:
根据预配置信息或网络配置信息,获取所述一个梳齿支持的码域资源信息或所述一个资源块支持的码域资源信息。
在一些实施例中,所述确定单元420还用于:
获取码域资源的索引信息和码域资源的对应关系,所述对应关系是预定义、预配置或网络配置的;
根据所述第一码域资源集合中码域资源对应的索引信息和所述对应关系,确定所述第一码域资源集合中包括的码域资源。
在一些实施例中,所述第一码域资源集合中的第一码域资源包括第一循环移位对,所述第一循环移位对中的第一循环移位值根据所述第一码域资源的索引信息确定;所述第一循环移位对中的第二循环移位值根据所述第一循环移位值和一个梳齿内支持的循环移位对的最大数量确定,其中,所述一个梳齿内支持的循环移位对的最大数量根据一个梳齿内支持的码域资源的最大数量确定;
或者,所述第二循环移位值根据所述第一循环移位值和一个资源块内支持的循环移位对的最大数量确定,其中,所述一个资源块内支持的循环移位对的最大数量根据一个资源块内支持的码域资源的最大数量确定。
在一些实施例中,所述确定单元420具体用于:
所述第一循环移位值根据所述第一码域资源的索引信息和所述一个梳齿支持的码域资源的数量确定,或者,
所述第一循环移位值根据所述第一码域资源的索引信息和所述一个资源块支持的码域资源的数量确定。
在一些实施例中,所述第一循环移位值用于确定所述第一PSSCH对应的否定确认NACK序列,所述第二循环移位值用于确定所述第一PSSCH对应的确认ACK序列。
在一些实施例中,所述确定单元420还用于:
根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第二传输资源集合中确定 所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
在一些实施例中,所述第二终端设备的标识信息根据所述第一PSSCH关联的SCI中携带的源标识信息确定,所述第一终端设备的标识信息根据所述第一终端设备的组成员标识信息确定,或者,所述第一终端设备的标识信息为0。
应理解,装置实施例与方法实施例可以相互对应,类似的描述可以参照方法实施例。具体地,图21所示的第一终端设备400可以对应于执行本申请实施例的方法200或300中的相应主体,并且第一终端设备400中的各个单元的前述和其它操作和/或功能分别为了实现图13或图20中的各个方法中的相应流程,为了简洁,在此不再赘述。
图22是本申请实施例的第二终端设备500的示意性框图。
如图22所示,所述第二终端设备500可包括:
发送单元510,用于在第一时隙发送第一物理侧行共享信道PSSCH;
确定单元520,用于在第二时隙包括的PSFCH传输资源集合中确定第一传输资源;
在所述第一传输资源上接收第一PSFCH;
其中,所述第二时隙是根据所述第一时隙确定的,所述第一PSFCH承载响应于所述第一PSSCH的侧行反馈信息。
在一些实施例中,所述第一PSSCH占据至少一个子信道;
所述确定单元520具体用于:
根据所述第一PSSCH所在的资源块集合的信息和所述第一PSSCH占据的子信道对应的索引信息,确定第一传输资源集合;
其中,所述第一传输资源集合中包括所述第一传输资源,所述第一PSSCH占据的子信道对应的索引信息包括以下信息中的至少一种:
所述第一PSSCH占据的子信道中第一个子信道对应的索引信息;
所述第一PSSCH占据的所有子信道对应的索引信息;
所述第一PSSCH占据的子信道的数量。
在一些实施例中,所述第一PSSCH所在的资源块集合包括至少一个第一资源块集合,所述第一传输资源集合包括至少一个第二资源块集合,其中,所述至少一个第二资源块集合是根据所述至少一个第一资源块集合的信息确定的。
在一些实施例中,所述确定单元520还用于:
根据所述至少一个第一资源块集合对应的索引信息确定所述至少一个第二资源块集合,其中,所述至少一个第一资源块集合对应的索引信息包括以下信息中至少一种:
所述至少一个第一资源块集合中的第一个第一资源块集合对应的索引信息;
所述至少一个第一资源块集合中所有的第一资源块集合对应的索引信息;
所述至少一个第一资源块集合中的包括的资源块集合的数量。
在一些实施例中,所述第一传输资源集合中包括的传输资源按照下面的顺序进行索引:
先按照频域资源进行索引,再按照码域资源进行索引。
在一些实施例中,所述先按照频域资源进行索引,包括:
先按照资源块集合索引从低到高的顺序进行索引,再按照物理资源块索引从低到高的顺序进行索引;或者;
先按照物理资源块索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
在一些实施例中,所述确定单元520还用于:
根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第一传输资源集合中确定所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
在一些实施例中,所述第二终端设备的标识信息根据所述第一PSSCH关联的SCI中携带的源标识信息确定,所述第一终端设备的标识信息根据所述第一终端设备的组成员标识信息确定,或者,所述第一终端设备的标识信息为0。
在一些实施例中,所述第一PSSCH占据至少一个第一梳齿;
所述确定单元520具体用于:
根据以下信息中的至少一种在所述第二时隙中确定第二传输资源集合:
所述第一PSSCH所在的资源块集合的信息;
所述至少一个第一梳齿的信息;
一个梳齿内支持的码域资源的数量;
一个梳齿支持的码域资源信息;
一个资源块内支持的码域资源的数量;
一个资源块支持的码域资源信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量;
其中,所述第二传输资源集合中包括所述第一传输资源。
在一些实施例中,所述至少一个第一梳齿的信息包括以下信息中的至少一种:
所述至少一个第一梳齿中第一个第一梳齿对应的索引信息;
所述至少一个第一梳齿中包括的所有梳齿对应的索引信息;
所述至少一个第一梳齿中包括的梳齿的数量。
在一些实施例中,所述第二传输资源集合中包括的传输资源按照下面的顺序进行索引:
先按照频域资源进行索引,再按照码域资源进行索引。
在一些实施例中,所述先按照频域资源进行索引,包括:
先按照资源块集合索引从低到高的顺序进行索引,再按照梳齿索引从低到高的顺序进行索引;或者;
先按照梳齿索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
在一些实施例中,所述第一PSSCH所在的资源块集合包括至少一个第三资源块集合,所述第二传输资源集合包括至少一个第四资源块集合,其中,所述至少一个第四资源块集合是根据所述至少一个第三资源块集合的信息确定的。
在一些实施例中,所述确定单元520还用于:
根据所述至少一个第三资源块集合对应的索引信息确定所述至少一个第四资源块集合,其中,所述至少一个第三资源块集合对应的索引信息包括以下信息中至少一种:
所述至少一个第三资源块集合中的第一个第三资源块集合对应的索引信息;
所述至少一个第三资源块集合中所有的第三资源块集合对应的索引信息;
所述至少一个第三资源块集合中的包括的资源块集合的数量。
在一些实施例中,所述第二传输资源集合包括至少一个第二梳齿,所述第二梳齿是根据如下信息中的至少一种确定的:
所述第一PSSCH所在的资源块集合的信息;
所述至少一个第一梳齿的信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量。
在一些实施例中,所述第二传输资源集合包括第一码域资源集合,所述第一码域资源集合是根据如下信息中的至少一种确定的:
一个梳齿内支持的码域资源的数量;
一个梳齿支持的码域资源信息;
一个资源块内支持的码域资源的数量;
一个资源块支持的码域资源信息;
PSFCH的周期;
所述第一时隙的索引;
PSSCH资源池内包括的梳齿数量;
PSFCH时隙内包括的梳齿数量。
在一些实施例中,所述第一码域资源集合中码域资源的数量根据以下信息确定:所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,所述PSFCH的周期,所述PSSCH资源池内包括的梳齿数量和所述PSFCH时隙内包括的梳齿数量。
在一些实施例中,所述第一码域资源集合中码域资源的数量为(N CS1/(P×K)),其中,N CS1表示所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,P表示所述PSFCH的周期,K是根据N 4和N 5确定的,N 4表示PSSCH资源池内包括的梳齿数量,N 5表示所述PSFCH时隙内包括的梳齿数量。
在一些实施例中,K=max(1,N 4/N 5)。
在一些实施例中,所述确定单元520还用于:
基于以下信息中的至少一种确定所述第一码域资源集合中码域资源对应的索引信息:
所述第一时隙的索引;
所述至少一个第一梳齿的信息;
所述第一码域资源集合中码域资源的数量;
所述一个梳齿支持的码域资源信息;
所述一个资源块支持的码域资源信息。
在一些实施例中,所述确定单元520还用于:
根据预配置信息或网络配置信息,获取所述一个梳齿支持的码域资源信息或所述一个资源块支持的码域资源信息。
在一些实施例中,所述确定单元520还用于:
获取码域资源的索引信息和码域资源的对应关系,所述对应关系是预定义、预配置或网络配置的;
根据所述第一码域资源集合中码域资源对应的索引信息和所述对应关系,确定所述第一码域资源集合中包括的码域资源。
在一些实施例中,所述第一码域资源集合中的第一码域资源包括第一循环移位对,所述第一循环移位对中的第一循环移位值根据所述第一码域资源的索引信息确定;所述第一循环移位对中的第二循环移位值根据所述第一循环移位值和一个梳齿内支持的循环移位对的最大数量确定,其中,所述一个梳齿内支持的循环移位对的最大数量根据一个梳齿内支持的码域资源的最大数量确定;
或者,所述第二循环移位值根据所述第一循环移位值和一个资源块内支持的循环移位对的最大数量确定,其中,所述一个资源块内支持的循环移位对的最大数量根据一个资源块内支持的码域资源的最大数量确定。
在一些实施例中,所述确定单元520具体用于:
所述第一循环移位值根据所述第一码域资源的索引信息和所述一个梳齿支持的码域资源的数量确定,或者,
所述第一循环移位值根据所述第一码域资源的索引信息和所述一个资源块支持的码域资源的数量确定。
在一些实施例中,所述第一循环移位值用于确定所述第一PSSCH对应的否定确认NACK序列,所述第二循环移位值用于确定所述第一PSSCH对应的确认ACK序列。
在一些实施例中,所述确定单元520还用于:
根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第二传输资源集合中确定所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
在一些实施例中,所述第二终端设备的标识信息根据所述第一PSSCH关联的SCI中携带的源标识信息确定,所述第一终端设备的标识信息根据所述第一终端设备的组成员标识信息确定,或者,所述第一终端设备的标识信息为0。
应理解,装置实施例与方法实施例可以相互对应,类似的描述可以参照方法实施例。具体地,图22所示的第二终端设备500可以对应于执行本申请实施例的方法200或300中的相应主体,并且第二终端设备500中的各个单元的前述和其它操作和/或功能分别为了实现图13或图20中的各个方法中的相应流程,为了简洁,在此不再赘述。
上文中结合附图从功能模块的角度描述了本申请实施例的通信设备。应理解,该功能模块可以通过硬件形式实现,也可以通过软件形式的指令实现,还可以通过硬件和软件模块组合实现。具体地,本申请实施例中的方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路和/或软件形式的指令完成,结合本申请实施例公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。可选地,软件模块可以位于随机存储器,闪存、只读存储器、可编程只读存储器、电可擦写可编程存储器、寄存器等本领域的成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法实施例中的步骤。
例如,上文涉及的接收单元410、发送单元430、发送单元510或接收单元530可由收发器实现,上文涉及的确定单元420或确定单元520可由处理器实现。
图23是本申请实施例的通信设备600示意性结构图。
如图23所示,所述通信设备600可包括处理器610。
其中,处理器610可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
如图23所示,通信设备600还可以包括存储器620。
其中,该存储器620可以用于存储指示信息,还可以用于存储处理器610执行的代码、指令等。其 中,处理器610可以从存储器620中调用并运行计算机程序,以实现本申请实施例中的方法。存储器620可以是独立于处理器610的一个单独的器件,也可以集成在处理器610中。
如图23所示,通信设备600还可以包括收发器630。
其中,处理器610可以控制该收发器630与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线,天线的数量可以为一个或多个。
应当理解,该通信设备600中的各个组件通过总线系统相连,其中,总线系统除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。
还应理解,该通信设备600可为本申请实施例的第一终端设备,并且该通信设备600可以实现本申请实施例的各个方法中由第一终端设备实现的相应流程,也就是说,本申请实施例的通信设备600可对应于本申请实施例中的第一终端设备400,并可以对应于执行根据本申请实施例的方法200或300中的相应主体,为了简洁,在此不再赘述。类似地,该通信设备600可为本申请实施例的第二终端设备,并且该通信设备600可以实现本申请实施例的各个方法中由第二终端设备实现的相应流程。也就是说,本申请实施例的通信设备600可对应于本申请实施例中的第二终端设备500,并可以对应于执行根据本申请实施例的方法200或300中的相应主体,为了简洁,在此不再赘述。
此外,本申请实施例中还提供了一种芯片。
例如,芯片可能是一种集成电路芯片,具有信号的处理能力,可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。所述芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。可选地,该芯片可应用到各种通信设备中,使得安装有该芯片的通信设备能够执行本申请实施例中的公开的各方法、步骤及逻辑框图。
图24是根据本申请实施例的芯片700的示意性结构图。
如图24所示,所述芯片700包括处理器710。
其中,处理器710可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
如图24所示,所述芯片700还可以包括存储器720。
其中,处理器710可以从存储器720中调用并运行计算机程序,以实现本申请实施例中的方法。该存储器720可以用于存储指示信息,还可以用于存储处理器710执行的代码、指令等。存储器720可以是独立于处理器710的一个单独的器件,也可以集成在处理器710中。
如图24所示,所述芯片700还可以包括输入接口730。其中,处理器710可以控制该输入接口730与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
如图24所示,所述芯片700还可以包括输出接口740。其中,处理器710可以控制该输出接口740与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
应理解,所述芯片700可应用于本申请实施例中的第一终端设备或第二终端设备,换言之,该芯片可以实现本申请实施例的各个方法中由第一终端设备实现的相应流程,也可以实现本申请实施例的各个方法中由第二终端设备实现的相应流程,为了简洁,在此不再赘述。
还应理解,该芯片700中的各个组件通过总线系统相连,其中,总线系统除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。
上文涉及的处理器可以包括但不限于:通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等等。
所述处理器可以用于实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
上文涉及的存储器包括但不限于:易失性存储器和/或非易失性存储器。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch  link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。
应注意,本文描述的存储器旨在包括这些和其它任意适合类型的存储器。
本申请实施例中还提供了一种计算机可读存储介质,用于存储计算机程序。该计算机可读存储介质存储一个或多个程序,该一个或多个程序包括指令,该指令当被包括多个应用程序的便携式电子设备执行时,能够使该便携式电子设备执行本申请提供的无线通信方法。
可选的,该计算机可读存储介质可应用于本申请实施例中的第一终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由第一终端设备实现的相应流程,为了简洁,在此不再赘述。可选地,该计算机可读存储介质可应用于本申请实施例中的第二终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由第二终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例中还提供了一种计算机程序产品,包括计算机程序。当该计算机程序被计算机执行时,使得计算机可以执行本申请提供的无线通信方法。
可选的,该计算机程序产品可应用于本申请实施例中的第一终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由第一终端设备实现的相应流程,为了简洁,在此不再赘述。可选地,该计算机程序产品可应用于本申请实施例中的第二终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由第二终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例中还提供了一种计算机程序。当该计算机程序被计算机执行时,使得计算机可以执行本申请提供的无线通信方法。
可选的,该计算机程序可应用于本申请实施例中的第一终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由第一终端设备实现的相应流程,为了简洁,在此不再赘述。可选的,该计算机程序可应用于本申请实施例中的第二终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由第二终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种通信系统,所述通信系统可以包括上述涉及的第一终端设备和第二终端设备,为了简洁,在此不再赘述。需要说明的是,本文中的术语“系统”等也可以称为“网络管理架构”或者“网络系统”等。
还应当理解,在本申请实施例和所附权利要求书中使用的术语是仅仅出于描述特定实施例的目的,而非旨在限制本申请实施例。例如,在本申请实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”、“上述”和“该”也旨在包括多数形式,除非上下文清楚地表示其他含义。
所属领域的技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请实施例的范围。如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
所属领域的技术人员还可以意识到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。在本申请提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例中单元或模块或组件的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如,多个单元或模块或组件可以结合或者可以集成到另一个系统,或一些单元或模块或组件可以忽略,或不执行。又例如,上述作为分离/显示部件说明的单元/模块/组件可以是或者也可以不是物理上分开的,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元/模块/组件来实现本申请实施例的目的。最后,需要说明的是,上文中显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
以上内容,仅为本申请实施例的具体实施方式,但本申请实施例的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请实施例揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请实施例的保护范围之内。因此,本申请实施例的保护范围应以权利要求的保护范围为准。

Claims (62)

  1. 一种无线通信方法,其特征在于,所述方法适用于第一终端设备,所述方法包括:
    在第一时隙接收第一物理侧行共享信道PSSCH;
    在第二时隙包括的物理侧行反馈信道PSFCH传输资源集合中确定第一传输资源;
    在所述第一传输资源上发送第一PSFCH;
    其中,所述第二时隙是根据所述第一时隙确定的,所述第一PSFCH承载响应于所述第一PSSCH的侧行反馈信息。
  2. 根据权利要求1所述的方法,其特征在于,所述第一PSSCH占据至少一个子信道;
    所述在第二时隙包括的物理侧行反馈信道PSFCH传输资源集合中确定第一传输资源,包括:
    根据所述第一PSSCH所在的资源块集合的信息和所述第一PSSCH占据的子信道对应的索引信息,确定第一传输资源集合;
    其中,所述第一传输资源集合中包括所述第一传输资源,所述第一PSSCH占据的子信道对应的索引信息包括以下信息中的至少一种:
    所述第一PSSCH占据的子信道中第一个子信道对应的索引信息;
    所述第一PSSCH占据的所有子信道对应的索引信息;
    所述第一PSSCH占据的子信道的数量。
  3. 根据权利要求2所述的方法,其特征在于,所述第一PSSCH所在的资源块集合包括至少一个第一资源块集合,所述第一传输资源集合包括至少一个第二资源块集合,其中,所述至少一个第二资源块集合是根据所述至少一个第一资源块集合的信息确定的。
  4. 根据权利要求3所述的方法,其特征在于,所述方法包括:
    根据所述至少一个第一资源块集合对应的索引信息确定所述至少一个第二资源块集合,其中,所述至少一个第一资源块集合对应的索引信息包括以下信息中至少一种:
    所述至少一个第一资源块集合中的第一个第一资源块集合对应的索引信息;
    所述至少一个第一资源块集合中所有的第一资源块集合对应的索引信息;
    所述至少一个第一资源块集合中的包括的资源块集合的数量。
  5. 根据权利要求2至4中任一项所述的方法,其特征在于,所述第一传输资源集合中包括的传输资源按照下面的顺序进行索引:
    先按照频域资源进行索引,再按照码域资源进行索引。
  6. 根据权利要求5所述的方法,其特征在于,所述先按照频域资源进行索引,包括:
    先按照资源块集合索引从低到高的顺序进行索引,再按照物理资源块索引从低到高的顺序进行索引;或者;
    先按照物理资源块索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
  7. 根据权利要求2至6中任一项所述的方法,其特征在于,所述方法还包括:
    根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第一传输资源集合中确定所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
  8. 根据权利要求7所述的方法,其特征在于,所述第二终端设备的标识信息根据所述第一PSSCH关联的SCI中携带的源标识信息确定,所述第一终端设备的标识信息根据所述第一终端设备的组成员标识信息确定,或者,所述第一终端设备的标识信息为0。
  9. 根据权利要求1所述的方法,其特征在于,所述第一PSSCH占据至少一个第一梳齿;
    所述在第二时隙包括的物理侧行反馈信道PSFCH传输资源集合中确定第一传输资源,包括:
    根据以下信息中的至少一种在所述第二时隙中确定第二传输资源集合:
    所述第一PSSCH所在的资源块集合的信息;
    所述至少一个第一梳齿的信息;
    一个梳齿内支持的码域资源的数量;
    一个梳齿支持的码域资源信息;
    一个资源块内支持的码域资源的数量;
    一个资源块支持的码域资源信息;
    PSFCH的周期;
    所述第一时隙的索引;
    PSSCH资源池内包括的梳齿数量;
    PSFCH时隙内包括的梳齿数量;
    其中,所述第二传输资源集合中包括所述第一传输资源。
  10. 根据权利要求9所述的方法,其特征在于,所述至少一个第一梳齿的信息包括以下信息中的至少一种:
    所述至少一个第一梳齿中第一个第一梳齿对应的索引信息;
    所述至少一个第一梳齿中包括的所有梳齿对应的索引信息;
    所述至少一个第一梳齿中包括的梳齿的数量。
  11. 根据权利要求9或10所述的方法,其特征在于,所述第二传输资源集合中包括的传输资源按照下面的顺序进行索引:
    先按照频域资源进行索引,再按照码域资源进行索引。
  12. 根据权利要求11所述的方法,其特征在于,所述先按照频域资源进行索引,包括:
    先按照资源块集合索引从低到高的顺序进行索引,再按照梳齿索引从低到高的顺序进行索引;或者;
    先按照梳齿索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
  13. 根据权利要求9至12中任一项所述的方法,其特征在于,所述第一PSSCH所在的资源块集合包括至少一个第三资源块集合,所述第二传输资源集合包括至少一个第四资源块集合,其中,所述至少一个第四资源块集合是根据所述至少一个第三资源块集合的信息确定的。
  14. 根据权利要求13所述的方法,其特征在于,所述方法包括:
    根据所述至少一个第三资源块集合对应的索引信息确定所述至少一个第四资源块集合,其中,所述至少一个第三资源块集合对应的索引信息包括以下信息中至少一种:
    所述至少一个第三资源块集合中的第一个第三资源块集合对应的索引信息;
    所述至少一个第三资源块集合中所有的第三资源块集合对应的索引信息;
    所述至少一个第三资源块集合中的包括的资源块集合的数量。
  15. 根据权利要求9至14中任一项所述的方法,其特征在于,所述第二传输资源集合包括至少一个第二梳齿,所述第二梳齿是根据如下信息中的至少一种确定的:
    所述第一PSSCH所在的资源块集合的信息;
    所述至少一个第一梳齿的信息;
    PSFCH的周期;
    所述第一时隙的索引;
    PSSCH资源池内包括的梳齿数量;
    PSFCH时隙内包括的梳齿数量。
  16. 根据权利要求9至15中任一项所述的方法,其特征在于,所述第二传输资源集合包括第一码域资源集合,所述第一码域资源集合是根据如下信息中的至少一种确定的:
    一个梳齿内支持的码域资源的数量;
    一个梳齿支持的码域资源信息;
    一个资源块内支持的码域资源的数量;
    一个资源块支持的码域资源信息;
    PSFCH的周期;
    所述第一时隙的索引;
    PSSCH资源池内包括的梳齿数量;
    PSFCH时隙内包括的梳齿数量。
  17. 根据权利要求16所述的方法,其特征在于,所述第一码域资源集合中码域资源的数量根据以下信息确定:所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,所述PSFCH的周期,所述PSSCH资源池内包括的梳齿数量和所述PSFCH时隙内包括的梳齿数量。
  18. 根据权利要求17所述的方法,其特征在于,所述第一码域资源集合中码域资源的数量为(N CS1/(P×K)),其中,N CS1表示所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,P表示所述PSFCH的周期,K是根据N 4和N 5确定的,N 4表示PSSCH资源池内包括的梳齿数量,N 5表示所述PSFCH时隙内包括的梳齿数量。
  19. 如权利要求18所述的方法,其特征在于,K=max(1,N 4/N 5)。
  20. 根据权利要求16至19中任一项所述的方法,其特征在于,所述方法还包括:
    基于以下信息中的至少一种确定所述第一码域资源集合中码域资源对应的索引信息:
    所述第一时隙的索引;
    所述至少一个第一梳齿的信息;
    所述第一码域资源集合中码域资源的数量;
    所述一个梳齿支持的码域资源信息;
    所述一个资源块支持的码域资源信息。
  21. 根据权利要求16至20中任一项所述的方法,其特征在于,所述方法还包括:
    根据预配置信息或网络配置信息,获取所述一个梳齿支持的码域资源信息或所述一个资源块支持的码域资源信息。
  22. 根据权利要求16至21中任一项所述的方法,其特征在于,所述方法还包括:
    获取码域资源的索引信息和码域资源的对应关系,所述对应关系是预定义、预配置或网络配置的;
    根据所述第一码域资源集合中码域资源对应的索引信息和所述对应关系,确定所述第一码域资源集合中包括的码域资源。
  23. 根据权利要求22所述的方法,其特征在于,所述第一码域资源集合中的第一码域资源包括第一循环移位对,所述第一循环移位对中的第一循环移位值根据所述第一码域资源的索引信息确定;所述第一循环移位对中的第二循环移位值根据所述第一循环移位值和一个梳齿内支持的循环移位对的最大数量确定,其中,所述一个梳齿内支持的循环移位对的最大数量根据一个梳齿内支持的码域资源的最大数量确定;
    或者,所述第二循环移位值根据所述第一循环移位值和一个资源块内支持的循环移位对的最大数量确定,其中,所述一个资源块内支持的循环移位对的最大数量根据一个资源块内支持的码域资源的最大数量确定。
  24. 根据权利要求23所述的方法,其特征在于,所述第一循环移位对中的第一循环移位值根据所述第一码域资源的索引信息确定,包括:
    所述第一循环移位值根据所述第一码域资源的索引信息和所述一个梳齿支持的码域资源的数量确定,或者,
    所述第一循环移位值根据所述第一码域资源的索引信息和所述一个资源块支持的码域资源的数量确定。
  25. 根据权利要求23或24所述的方法,其特征在于,所述第一循环移位值用于确定所述第一PSSCH对应的否定确认NACK序列,所述第二循环移位值用于确定所述第一PSSCH对应的确认ACK序列。
  26. 根据权利要求9至25中任一项所述的方法,其特征在于,所述方法还包括:
    根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第二传输资源集合中确定所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
  27. 根据权利要求26所述的方法,其特征在于,所述第二终端设备的标识信息根据所述第一PSSCH关联的SCI中携带的源标识信息确定,所述第一终端设备的标识信息根据所述第一终端设备的组成员标识信息确定,或者,所述第一终端设备的标识信息为0。
  28. 一种无线通信方法,其特征在于,所述方法适用于第二终端设备,所述方法包括:
    在第一时隙发送第一物理侧行共享信道PSSCH;
    在第二时隙包括的物理侧行反馈信道PSFCH传输资源集合中确定第一传输资源;
    在所述第一传输资源上接收第一PSFCH;
    其中,所述第二时隙是根据所述第一时隙确定的,所述第一PSFCH承载响应于所述第一PSSCH的侧行反馈信息。
  29. 根据权利要求28所述的方法,其特征在于,所述第一PSSCH占据至少一个子信道;
    所述在第二时隙包括的PSFCH传输资源集合中确定第一传输资源,包括:
    根据所述第一PSSCH所在的资源块集合的信息和所述第一PSSCH占据的子信道对应的索引信息,确定第一传输资源集合;
    其中,所述第一传输资源集合中包括所述第一传输资源,所述第一PSSCH占据的子信道对应的索引信息包括以下信息中的至少一种:
    所述第一PSSCH占据的子信道中第一个子信道对应的索引信息;
    所述第一PSSCH占据的所有子信道对应的索引信息;
    所述第一PSSCH占据的子信道的数量。
  30. 根据权利要求29所述的方法,其特征在于,所述第一PSSCH所在的资源块集合包括至少一个第一资源块集合,所述第一传输资源集合包括至少一个第二资源块集合,其中,所述至少一个第二资源块集合是根据所述至少一个第一资源块集合的信息确定的。
  31. 根据权利要求30所述的方法,其特征在于,所述方法包括:
    根据所述至少一个第一资源块集合对应的索引信息确定所述至少一个第二资源块集合,其中,所述 至少一个第一资源块集合对应的索引信息包括以下信息中至少一种:
    所述至少一个第一资源块集合中的第一个第一资源块集合对应的索引信息;
    所述至少一个第一资源块集合中所有的第一资源块集合对应的索引信息;
    所述至少一个第一资源块集合中的包括的资源块集合的数量。
  32. 根据权利要求29至31中任一项所述的方法,其特征在于,所述第一传输资源集合中包括的传输资源按照下面的顺序进行索引:
    先按照频域资源进行索引,再按照码域资源进行索引。
  33. 根据权利要求32所述的方法,其特征在于,所述先按照频域资源进行索引,包括:
    先按照资源块集合索引从低到高的顺序进行索引,再按照物理资源块索引从低到高的顺序进行索引;或者;
    先按照物理资源块索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
  34. 根据权利要求29至33中任一项所述的方法,其特征在于,所述方法还包括:
    根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第一传输资源集合中确定所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
  35. 根据权利要求34所述的方法,其特征在于,所述第二终端设备的标识信息根据所述第一PSSCH关联的SCI中携带的源标识信息确定,所述第一终端设备的标识信息根据所述第一终端设备的组成员标识信息确定,或者,所述第一终端设备的标识信息为0。
  36. 根据权利要求28所述的方法,其特征在于,所述第一PSSCH占据至少一个第一梳齿;
    所述在第二时隙包括的物理侧行反馈信道PSFCH传输资源集合中确定第一传输资源,包括:
    根据以下信息中的至少一种在所述第二时隙中确定第二传输资源集合:
    所述第一PSSCH所在的资源块集合的信息;
    所述至少一个第一梳齿的信息;
    一个梳齿内支持的码域资源的数量;
    一个梳齿支持的码域资源信息;
    一个资源块内支持的码域资源的数量;
    一个资源块支持的码域资源信息;
    PSFCH的周期;
    所述第一时隙的索引;
    PSSCH资源池内包括的梳齿数量;
    PSFCH时隙内包括的梳齿数量;
    其中,所述第二传输资源集合中包括所述第一传输资源。
  37. 根据权利要求36所述的方法,其特征在于,所述至少一个第一梳齿的信息包括以下信息中的至少一种:
    所述至少一个第一梳齿中第一个第一梳齿对应的索引信息;
    所述至少一个第一梳齿中包括的所有梳齿对应的索引信息;
    所述至少一个第一梳齿中包括的梳齿的数量。
  38. 根据权利要求36或37所述的方法,其特征在于,所述第二传输资源集合中包括的传输资源按照下面的顺序进行索引:
    先按照频域资源进行索引,再按照码域资源进行索引。
  39. 根据权利要求38所述的方法,其特征在于,所述先按照频域资源进行索引,包括:
    先按照资源块集合索引从低到高的顺序进行索引,再按照梳齿索引从低到高的顺序进行索引;或者;
    先按照梳齿索引从低到高的顺序进行索引,再按照资源块集合索引从低到高的顺序进行索引。
  40. 根据权利要求9至39中任一项所述的方法,其特征在于,所述第一PSSCH所在的资源块集合包括至少一个第三资源块集合,所述第二传输资源集合包括至少一个第四资源块集合,其中,所述至少一个第四资源块集合是根据所述至少一个第三资源块集合的信息确定的。
  41. 根据权利要求40所述的方法,其特征在于,所述方法包括:
    根据所述至少一个第三资源块集合对应的索引信息确定所述至少一个第四资源块集合,其中,所述至少一个第三资源块集合对应的索引信息包括以下信息中至少一种:
    所述至少一个第三资源块集合中的第一个第三资源块集合对应的索引信息;
    所述至少一个第三资源块集合中所有的第三资源块集合对应的索引信息;
    所述至少一个第三资源块集合中的包括的资源块集合的数量。
  42. 根据权利要求36至41中任一项所述的方法,其特征在于,所述第二传输资源集合包括至少一个第二梳齿,所述第二梳齿是根据如下信息中的至少一种确定的:
    所述第一PSSCH所在的资源块集合的信息;
    所述至少一个第一梳齿的信息;
    PSFCH的周期;
    所述第一时隙的索引;
    PSSCH资源池内包括的梳齿数量;
    PSFCH时隙内包括的梳齿数量。
  43. 根据权利要求36至42中任一项所述的方法,其特征在于,所述第二传输资源集合包括第一码域资源集合,所述第一码域资源集合是根据如下信息中的至少一种确定的:
    一个梳齿内支持的码域资源的数量;
    一个梳齿支持的码域资源信息;
    一个资源块内支持的码域资源的数量;
    一个资源块支持的码域资源信息;
    PSFCH的周期;
    所述第一时隙的索引;
    PSSCH资源池内包括的梳齿数量;
    PSFCH时隙内包括的梳齿数量。
  44. 根据权利要求43所述的方法,其特征在于,所述第一码域资源集合中码域资源的数量根据以下信息确定:所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,所述PSFCH的周期,所述PSSCH资源池内包括的梳齿数量和所述PSFCH时隙内包括的梳齿数量。
  45. 根据权利要求44所述的方法,其特征在于,所述第一码域资源集合中码域资源的数量为(N CS1/(P×K)),其中,N CS1表示所述一个梳齿内支持的码域资源的数量或所述一个资源块内支持的码域资源的数量,P表示所述PSFCH的周期,K是根据N 4和N 5确定的,N 4表示PSSCH资源池内包括的梳齿数量,N 5表示所述PSFCH时隙内包括的梳齿数量。
  46. 如权利要求45所述的方法,其特征在于,K=max(1,N 4/N 5)。
  47. 根据权利要求43至46中任一项所述的方法,其特征在于,所述方法还包括:
    基于以下信息中的至少一种确定所述第一码域资源集合中码域资源对应的索引信息:
    所述第一时隙的索引;
    所述至少一个第一梳齿的信息;
    所述第一码域资源集合中码域资源的数量;
    所述一个梳齿支持的码域资源信息;
    所述一个资源块支持的码域资源信息。
  48. 根据权利要求43至47中任一项所述的方法,其特征在于,所述方法还包括:
    根据预配置信息或网络配置信息,获取所述一个梳齿支持的码域资源信息或所述一个资源块支持的码域资源信息。
  49. 根据权利要求43至48中任一项所述的方法,其特征在于,所述方法还包括:
    获取码域资源的索引信息和码域资源的对应关系,所述对应关系是预定义、预配置或网络配置的;
    根据所述第一码域资源集合中码域资源对应的索引信息和所述对应关系,确定所述第一码域资源集合中包括的码域资源。
  50. 根据权利要求49所述的方法,其特征在于,所述第一码域资源集合中的第一码域资源包括第一循环移位对,所述第一循环移位对中的第一循环移位值根据所述第一码域资源的索引信息确定;所述第一循环移位对中的第二循环移位值根据所述第一循环移位值和一个梳齿内支持的循环移位对的最大数量确定,其中,所述一个梳齿内支持的循环移位对的最大数量根据一个梳齿内支持的码域资源的最大数量确定;
    或者,所述第二循环移位值根据所述第一循环移位值和一个资源块内支持的循环移位对的最大数量确定,其中,所述一个资源块内支持的循环移位对的最大数量根据一个资源块内支持的码域资源的最大数量确定。
  51. 根据权利要求50所述的方法,其特征在于,所述第一循环移位对中的第一循环移位值根据所述第一码域资源的索引信息确定,包括:
    所述第一循环移位值根据所述第一码域资源的索引信息和所述一个梳齿支持的码域资源的数量确定,或者,
    所述第一循环移位值根据所述第一码域资源的索引信息和所述一个资源块支持的码域资源的数量确定。
  52. 根据权利要求50或51所述的方法,其特征在于,所述第一循环移位值用于确定所述第一PSSCH对应的否定确认NACK序列,所述第二循环移位值用于确定所述第一PSSCH对应的确认ACK序列。
  53. 根据权利要求36至52中任一项所述的方法,其特征在于,所述方法还包括:
    根据所述第一终端设备的标识信息和/或第二终端设备的标识信息在所述第二传输资源集合中确定所述第一传输资源,其中,所述第二终端设备是发送所述第一PSSCH的终端设备。
  54. 根据权利要求53所述的方法,其特征在于,所述第二终端设备的标识信息根据所述第一PSSCH关联的SCI中携带的源标识信息确定,所述第一终端设备的标识信息根据所述第一终端设备的组成员标识信息确定,或者,所述第一终端设备的标识信息为0。
  55. 一种第一终端设备,其特征在于,包括:
    接收单元,用于在第一时隙接收第一物理侧行共享信道PSSCH;
    确定单元,用于在第二时隙包括的物理侧行反馈信道PSFCH传输资源集合中确定第一传输资源;
    发送单元,用于在所述第一传输资源上发送第一PSFCH;
    其中,所述第二时隙是根据所述第一时隙确定的,所述第一PSFCH承载响应于所述第一PSSCH的侧行反馈信息。
  56. 一种第二终端设备,其特征在于,包括:
    发送单元,用于在第一时隙发送第一物理侧行共享信道PSSCH;
    确定单元,用于在第二时隙包括的物理侧行反馈信道PSFCH传输资源集合中确定第一传输资源;
    接收单元,用于在所述第一传输资源上接收第一PSFCH;
    其中,所述第二时隙是根据所述第一时隙确定的,所述第一PSFCH承载响应于所述第一PSSCH的侧行反馈信息。
  57. 一种第一终端设备,其特征在于,包括:
    处理器和存储器,所述存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,以执行权利要求1至27中任一项所述的方法。
  58. 一种第二终端设备,其特征在于,包括:
    处理器和存储器,所述存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,以执行权利要求28至54中任一项所述的方法。
  59. 一种芯片,其特征在于,包括:
    处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至27中任一项所述的方法或如权利要求28至54中任一项所述的方法。
  60. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至27中任一项所述的方法或如权利要求28至54中任一项所述的方法。
  61. 一种计算机程序产品,其特征在于,包括计算机程序指令,所述计算机程序指令使得计算机执行如权利要求1至27中任一项所述的方法或如权利要求28至54中任一项所述的方法。
  62. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至27中任一项所述的方法或如权利要求28至54中任一项所述的方法。
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