WO2023279399A1 - Procédé de détermination de ressource de transmission de liaison latérale et procédé et appareil d'envoi, dispositif et support - Google Patents

Procédé de détermination de ressource de transmission de liaison latérale et procédé et appareil d'envoi, dispositif et support Download PDF

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Publication number
WO2023279399A1
WO2023279399A1 PCT/CN2021/105602 CN2021105602W WO2023279399A1 WO 2023279399 A1 WO2023279399 A1 WO 2023279399A1 CN 2021105602 W CN2021105602 W CN 2021105602W WO 2023279399 A1 WO2023279399 A1 WO 2023279399A1
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WIPO (PCT)
Prior art keywords
mini
slot
time
signaling
domain position
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PCT/CN2021/105602
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English (en)
Chinese (zh)
Inventor
赵振山
张世昌
林晖闵
丁伊
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2021/105602 priority Critical patent/WO2023279399A1/fr
Priority to CN202180097665.7A priority patent/CN117223365A/zh
Publication of WO2023279399A1 publication Critical patent/WO2023279399A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of mobile communication, in particular to a determination method, transmission method, device, equipment and medium of sidelink transmission resources.
  • the terminal determines the time-domain position of the sidelink transmission resource according to the configuration signaling, and the sidelink transmission resource is used for the sidelink transmission based on the mini-slot.
  • the sending module is configured to send configuration signaling to the terminal, the configuration signaling is used to determine the time domain position of the sidelink transmission resources, and the sidelink transmission resources are used for sidelink transmission based on the mini-slot.
  • the terminal determines the time-domain position corresponding to the sidelink transmission resources according to the configuration signaling, and realizes the transmission scheduling at the mini-slot granularity in the sidelink communication scenario, reducing the transmission delay.
  • FIG. 2 is a schematic diagram of broadcast transmission in LTE provided by an exemplary embodiment of the present application.
  • FIG. 3 is a schematic diagram of a time slot structure in NR-V2X provided by an exemplary embodiment of the present application
  • Fig. 14 is a schematic structural diagram of a mini-slot provided by an exemplary embodiment of the present application.
  • FIG. 18 is a flow chart of an apparatus for sending sidelink transmission resources provided by an exemplary embodiment of the present application.
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in the embodiment 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) deployment Web scene.
  • Carrier Aggregation, CA Carrier Aggregation
  • DC Dual Connectivity
  • SA independent deployment Web scene
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered as non-shared spectrum.
  • the terminal 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 on airplanes, balloons and satellites) Wait).
  • the terminal may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal device , wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, Wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • a virtual reality (Virtual Reality, VR) terminal device an augmented reality (Augmented Reality, AR) terminal device
  • wireless terminal equipment in industrial control wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, Wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device may provide services for the cell, and the terminal communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a network device (for example, The cell corresponding to the base station) may belong to the macro base station or the base station corresponding to the small cell (Small cell).
  • the small cell here may include: Metro cell, Micro cell, Pico cell cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • 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.
  • 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 terminals and network devices).
  • devices for example, including terminals and network devices.
  • pre-defined may refer to defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied to future communication systems, which is not limited in the present application.
  • FIG. 1 shows a schematic structural diagram of a lateral communication system provided by an exemplary embodiment of the present application.
  • the lateral communication system includes a first terminal 110 , a second terminal 120 and a network device 130 .
  • both the first terminal 110 and the second terminal 120 are within the corresponding coverage of the same network device.
  • both the first terminal 110 and the second terminal 120 may perform sidelink communication based on the same sidelink configuration by receiving configuration signaling from the network device 130 .
  • both the first terminal 110 and the second terminal 120 are outside the coverage of the network device 130 , and both the first terminal 110 and the second terminal 120 determine a sidelink configuration according to pre-configuration information to perform sidelink communication.
  • Device-to-device communication is a sidelink transmission technology based on D2D. It is different from the way communication data is received or sent by network equipment in traditional cellular systems, so it has higher spectral efficiency and lower transmission delay.
  • the Internet of Vehicles system adopts a terminal-to-terminal direct communication method, and two transmission modes are defined in 3GPP: the first mode and the 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 resources for the terminal Resources for semi-static transfers.
  • the first terminal 110 and the second terminal 120 are located within the coverage of the network device 130, and the network device 130 allocates transmission resources ( i.e. sideline transmission resources).
  • the second mode the terminal selects a resource in the resource pool (Resource Pool, RP) for data transmission.
  • the first terminal 110 and the second terminal 120 are located outside the coverage of the network device 130, and the first terminal 110 and the second terminal 120 can independently select transmission resources from the pre-configured resource pool performing sidelink transmission; or as shown in (a) of FIG. 1 , the first terminal 110 and the second terminal 120 autonomously select transmission resources from the resource pool configured for them by the network device 130 to perform sidelink transmission.
  • FIG. specifically includes the following three broadcast transmission methods:
  • (a) in Fig. 2 Unicast propagation mode. For unicast transmission, there is only one terminal at the receiving end. That is, unicast transmission is performed between the sending terminal 210 and one receiving terminal 220 .
  • FIG. 2 multicast propagation mode.
  • Multiple receiver terminals 220 form a communication group, the sender terminal 210 sends data, and other terminals in the group are all receiver terminals.
  • the receiving terminal 220 is any terminal around the transmitting terminal 210 .
  • the subchannel is the minimum granularity of resource allocation in the frequency domain of the Physical Sidelink Shaerd Channel (PSSCH) in NR-V2X
  • the number of PRBs occupied by the PSCCH must be less than or equal to the number of PRBs contained in a subchannel in the resource pool. The number of PRBs, so as not to impose additional restrictions on PSSCH resource selection or allocation.
  • the second-order SCI is introduced in NR-V2X.
  • the first-order SCI is carried in the PSCCH to indicate the transmission resources of the PSSCH, reserved resource information, MCS level, priority and other information.
  • the second-order SCI is sent in the resources of the PSSCH , using the DMRS of the PSSCH to perform demodulation, and used to indicate information for data demodulation, such as the sending end ID, receiving end ID, HARQ ID, and NDI.
  • a side feedback channel In NR-V2X, in order to improve reliability, a side feedback channel is introduced. For example, for unicast transmission, the transmitting terminal sends sidelink data (including PSCCH and PSSCH) to the receiving terminal, and the receiving terminal sends HARQ feedback information (including ACK or NACK) to the transmitting terminal, and the transmitting terminal transmits HARQ feedback information (including ACK or NACK) to the transmitting terminal. The feedback information judges whether retransmission is required. Wherein, the HARQ feedback information is carried in a sidelink feedback channel, such as PSFCH.
  • sidelink feedback channel such as PSFCH.
  • sidelink feedback is activated or deactivated through pre-configuration information, network device configuration information, or the sending terminal.
  • PSFCH In NR-V2X, PSFCH is introduced.
  • the PSFCH only carries 1-bit HARQ-ACK information and occupies 2 time-domain symbols in the time domain.
  • the second symbol carries sideline feedback information, and the data on the first symbol is a copy of the data on the second symbol, but the first symbol is used as AGC and occupies 1 PRB in the frequency domain.
  • FIG. 5 shows a schematic diagram of a time slot structure of sidelink transmission resources, in which the positions of time domain symbols occupied by PSFCH, PSCCH, and PSSCH in a time slot are schematically shown.
  • the last symbol is used as GP; the penultimate symbol is used for PSFCH transmission; the penultimate symbol data is the same as the PSFCH symbol data, which is used as AGC; the penultimate symbol is also used as GP;
  • the first symbol in the time slot is used as AGC, and the data on this symbol is the same as the data on the second time domain symbol in the time slot; PSCCH occupies 3 time domain symbols; the remaining symbols can be used for PSSCH transmission.
  • Resource pool (ResourcePool, RP):
  • a resource pool is a collection of resources.
  • the resource pool of the sidelink is a collection of time-frequency resources used for sidelink transmission.
  • the resource pool of the sidelink can be configured through pre-configuration information or network configuration information.
  • the transmitting terminal After sending the PSCCH/PSSCH, the transmitting terminal determines resources for receiving the PSFCH according to the PSFCH configuration information in the sending resource pool, and performs PSFCH detection.
  • the sending resource pool configured for the sending terminal In order to enable the sending terminal and the receiving terminal to perform data transmission normally, the sending resource pool configured for the sending terminal is generally the same as the receiving resource pool configured for the receiving terminal. Therefore, the sending terminal and the receiving terminal can determine the same PSFCH transmission resource according to the PSSCH transmission resource and the configuration information of PSFCH in their respective resource pools.
  • micro-slot transmission or scheduling is introduced, that is, the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) or physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) scheduled by the network equipment is not
  • the time slot is used as the granularity, but the time domain symbols in the time slot are used as the granularity, so that the purpose of reducing the time delay can be achieved.
  • Fig. 8 shows a schematic diagram of scheduling of mini-slots.
  • the Physical Downlink Control Channel (PDCCH) located at the head of the time slot can not only schedule the PDSCH located in the same time slot (with mini-slot 1 as the resource unit), but also schedule the PUSCH located at the end of the time slot (mini-slot 2 is used as a resource unit), so that uplink and downlink data can be quickly scheduled within one time slot.
  • PDCCH Physical Downlink Control Channel
  • the NR system supports mini-slot scheduling with ⁇ 2, 4, 7 ⁇ time-domain symbols as the time-domain scheduling granularity.
  • the configuration signaling is used to determine time domain positions of one or more sidelink transmission resources.
  • the sidelink transmission resources are used for sidelink transmission based on mini-slots; or, the sidelink transmission resources are transmission resources with a scheduling granularity of mini-slots; or, the sidelink transmission resources are used for sidelink micro-slots. time slot transmission.
  • the sidelink transmission resources are used to transmit at least one of the following: PSCCH, PSSCH, and PSFCH.
  • the configuration signaling carries configuration information related to the mini-slot to which the sidelink transmission resource belongs, including but not limited to at least one of the following information:
  • the first mini-slot interval is used to indicate the number of mini-slots between the mini-slot to which the first sidelink transmission resource belongs and the mini-slot to which the configuration signaling belongs, or to indicate the first sidelink transmission
  • the first mini-slot interval is used to determine the first time-domain position of the first sidelink transmission resource, and the first time-domain position is determined based on the time-domain position received from the configuration signaling and the first mini-slot interval of.
  • the second mini-slot interval is used to indicate the number of mini-slots separated between the mini-slot to which the mth sidelink transmission resource belongs and the mini-slot to which the first sidelink transmission resource belongs.
  • the second mini-slot interval is used to determine the mini-slot to which the m-th sidelink transmission resource belongs, and the mini-slot to which the m-th sidelink transmission resource belongs is based on the time domain of the first sidelink transmission resource The location and the second mini-slot interval are determined.
  • m is an integer greater than 1.
  • the position information of the first sideline transmission resource on the time slot to which it belongs is used to determine in the time slot to which the first sideline transmission resource belongs The ith mini-slot of .
  • a mini-slot includes one or more time-domain symbols in a slot
  • a slot may include multiple mini-slots.
  • the number of mini-slots in one time slot can be set according to actual needs, which is not limited in this application.
  • a time slot includes 2 mini-slots, and the indication information in the configuration signaling indicates that the time domain position of the first sidelink transmission resource is the first (or second) mini-slot in the time slot. time slot.
  • the configuration signaling includes first signaling, and the first signaling includes but is not limited to at least one of the following information: configuration information for determining the interval of the first mini-slot, configuration information for determining the interval of the second mini-slot Interval configuration information and position information of the first sidelink transmission resource on the time slot to which it belongs.
  • a time slot includes two mini-slots, and the terminal receives the DCI sent by the network device, and the time interval field of the DCI carries an index value of the time slot interval, and the index value is used to determine the to which the first sidelink transmission resource belongs.
  • Step 104 the terminal determines the time domain position of the sidelink transmission resource according to the configuration signaling.
  • the sidelink transmission resources are used for sidelink transmission based on mini-slots; or, the sidelink transmission resources are transmission resources with a scheduling granularity of mini-slots; or, the sidelink transmission resources are used for sidelink micro-slots. time slot transmission.
  • a mini-slot includes one or more time-domain symbols in a slot
  • a slot may include multiple mini-slots.
  • one slot includes two mini-slots.
  • the number of mini-slots in one time slot can be set according to actual needs, which is not limited in this application.
  • the sidelink transmission resource is used to transmit at least one of the following: PSCCH, PSSCH, and PSFCH;
  • the configuration signaling carries information related to the mini-slot to which the sidelink transmission resource belongs, including but not limited to the following At least one of the information: configuration information for determining the interval of the first mini-slot, configuration information for determining the interval of the second mini-slot, and position information of the first sidelink transmission resource on the associated time slot.
  • the first mini-slot interval refers to the number of mini-slots separated between the mini-slot to which the first sidelink transmission resource belongs and the mini-slot to which the configuration signaling belongs, or is used to indicate that the first sidelink The number of mini-slots between the mini-slots to which the transmission resources belong and the reference SFN;
  • the second mini-slot interval refers to the mini-slots and the second mini-slots to which other sideline transmission resources except the first sideline transmission resources belong The number of mini-slots between the mini-slots to which the side-line transmission resource belongs.
  • the determination of the time domain position of the first sidelink transmission resource can be determined through the time interval (Time gap) field in the configuration signaling.
  • the time interval is used to determine the time slot interval between the first side transmission resource and the time slot or mini-slot where the configuration signaling is located, and the first side transmission resource can be determined according to this information and the time domain position where the terminal receives the configuration signaling.
  • the first sidelink transmission resource may be in a time slot or in a mini-slot.
  • the network device configures the time interval table through the parameter sl-DCI-ToSL-Trans.
  • the elements in the table represent the number of time slots or mini-slots.
  • the DCI is an index value, and the specific time interval size can be determined according to the index value and the time interval table.
  • the terminal After receiving the DCI, the terminal determines the size of the specific time interval according to the parameter sl-DCI-ToSL-Trans and the time interval table, and then, according to the time domain position of the DCI and the size of the time interval, determines the first The temporal location of the sidelink transmission resource.
  • the determination of the time domain position of the first sidelink transmission resource may also be determined through the time interval (sl-TimeOffsetCG-Type1) field in the configuration signaling.
  • the method of time domain resource allocation for indicating time domain resources is the same as that of SCI format 1-A, and the value of this parameter is represented by Time Resource Indication Value (TRIV), which is used to determine The time slot interval or mini-slot interval of the other N-1 sideline transmission resources other than the first sideline transmission resource relative to the first sideline transmission resource.
  • TIV Time Resource Indication Value
  • the determination of the mini-slot intervals of the N-1 sidelink transmission resources except the first sidelink transmission resource relative to the first sidelink transmission resource through TRIV is taken as an example.
  • the time domain positions of the remaining N ⁇ 1 transmission resources can be determined.
  • the relationship between the value of TRIV and the number N of sidelink transmission resources allocated by the network device is as follows:
  • FIG. 10 shows a schematic diagram of time slot intervals of sidelink transmission resources.
  • DCI allocates 3 sideline transmission resources, and allocates PUCCH transmission resources, as follows:
  • t 1 represents the mini-slot interval between the allocated second sidelink transmission resource and the first sidelink transmission resource, which is determined according to the time domain resource allocation field in DCI;
  • t 2 represents the mini-slot interval between the allocated third sidelink transmission resource and the first sidelink transmission resource, which is determined according to the time domain resource allocation field in the DCI.
  • the configuration signaling is still DCI as an example, where the DCI carries indication information A and indication information B, where the indication information A is used to indicate the distance between the first sidelink transmission resource and the time slot where the DCI is located.
  • Time interval according to the indication information A and the position of the time slot where the DCI is located, the time slot to which the first sideline transmission resource belongs can be determined, and the indication information B is used to indicate the microtime of the first sideline transmission resource on the time slot to which it belongs Gap position.
  • the terminal After receiving the DCI sent by the network device, the terminal can determine the time domain position of the sidelink transmission resource according to the time slot to which the sidelink transmission resource belongs and the indication information B, and the time domain position corresponds to a mini-slot.
  • Fig. 11 shows a flowchart of a method for sending sidelink transmission resources provided by an exemplary embodiment of the present application.
  • the embodiment of the present application is illustrated by taking the above method applied to the lateral communication system shown in FIG. 1 as an example.
  • the lateral communication system includes a terminal and a network device, and the method is applied to the network device.
  • the method for sending lateral transmission resources provided in the embodiment of the present application includes the following steps:
  • the configuration signaling is used to determine time domain positions of one or more sidelink transmission resources.
  • the sidelink transmission resources are used for sidelink transmission based on mini-slots; or, the sidelink transmission resources are transmission resources with a scheduling granularity of mini-slots; or, the sidelink transmission resources are used for sidelink micro-slots. time slot transmission.
  • the sidelink transmission resource is used to transmit at least one of the following: PSCCH, PSSCH, and PSFCH;
  • the configuration signaling carries information related to the mini-slot to which the sidelink transmission resource belongs, including but not limited to the following At least one of the information: configuration information for determining the interval of the first mini-slot, configuration information for determining the interval of the second mini-slot, and position information of the first sidelink transmission resource on the associated time slot.
  • Configuration signaling may also be referred to as scheduling signaling.
  • the configuration signaling is DCI
  • the configuration information used to determine the first mini-slot interval is carried in the time interval field of DCI
  • the configuration information used to determine the second mini-slot interval is carried in the time domain resource allocation of DCI area.
  • the configuration signaling is RRC signaling.
  • Step 204 the terminal receives the configuration signaling.
  • the terminal can acquire at least one of the following information according to the received configuration signaling: configuration information for determining the first mini-slot interval, configuration information for determining the second mini-slot interval, configuration information for the second mini-slot interval, The location information of a sidelink transmission resource on the time slot to which it belongs.
  • the DCI sent by the network device to the terminal carries the index value of the first mini-slot interval in the time interval field of the DCI, and the index value is used to determine the first sidelink transmission resource
  • the terminal can Determine the mini-slots to which other side-line transmission resources except the first side-line transmission resource belong, and the mini-slots to which other side-line transmission resources except the first side-line transmission resource belong The mini-slot to which the transmission resource belongs and the second mini-slot interval are determined.
  • a time slot includes two mini-slots, and the terminal receives the DCI sent by the network device, and the time interval field of the DCI carries an index value of the time slot interval, and the index value is used to determine the to which the first sidelink transmission resource belongs.
  • the terminal can determine the time domain position corresponding to the sidelink transmission resource at the granularity of the micro-slot.
  • the transmission scheduling at the micro-slot granularity is realized, and the transmission delay is reduced.
  • Fig. 12 shows a flowchart of a method for transmitting sidelink transmission resources provided by an exemplary embodiment of the present application.
  • the transmission method of the sidelink transmission resources is applied to the sidelink communication system shown in FIG. 1 as an example.
  • the sidelink communication system includes terminals and network devices, and the configuration signaling includes the first signaling as an example.
  • the method for transmitting sidelink transmission resources provided in the embodiment of the present application includes the following steps:
  • Step 301 The network device sends a second signaling to the terminal.
  • the second signaling is RRC signaling
  • the mini-slot interval set is carried in the parameter sl-DCI-ToSL-Trans.
  • Step 302 The terminal receives the second signaling.
  • the terminal After receiving the second signaling, the terminal can acquire the mini-slot interval set.
  • the network device sends the RRC signaling to the terminal, and the signaling includes the parameter sl-DCI-ToSL-Trans.
  • the parameter sl-DCI-ToSL-Trans ⁇ 1, 2, 4, 6, 8, 12, 16, 32 ⁇ .
  • the terminal After receiving the second signaling, the terminal can obtain a set of mini-slot intervals as ⁇ 1, 2, 4, 6, 8, 12, 16, 32 ⁇ . Wherein, the mini-slot interval set includes eight candidate mini-slot intervals.
  • the number of slot intervals is 12 mini-slots
  • the seventh candidate mini-slot interval means that the interval between the mini-slot to which the first sidelink transmission resource belongs and the mini-slot to which the first signaling belongs is 16
  • the mini-slot, the eighth candidate mini-slot interval means that the interval between the mini-slot to which the first sidelink transmission resource belongs and the mini-slot to which the first signaling belongs is 32 mini-slots.
  • Step 303 The network device sends the first signaling to the terminal.
  • the first signaling carries information related to the first mini-slot interval.
  • the relevant information of the first mini-slot interval is used to determine the first mini-slot interval.
  • the first mini-slot interval is used to indicate the number of mini-slots separated between the mini-slot to which the first sidelink transmission resource belongs and the mini-slot to which the configuration signaling belongs. For example, if the configuration signaling includes the first signaling as an example, and the first mini-slot interval is 3, the interval between the mini-slot to which the first sidelink transmission resource belongs and the mini-slot to which the first signaling belongs is 3 mini-slots.
  • the terminal determines the number of mini-slots between the mini-slot to which the first sidelink transmission resource belongs and the mini-slot to which the first signaling belongs, and the number of intervals is determined according to the first index value.
  • the first signaling carries mini-slot interval indication information
  • the time-domain position of the first sidelink transmission resource can be determined according to the mini-slot interval indication information.
  • the mini-slot interval indication information is used to indicate the number of mini-slots separated between the time domain position of the first sidelink transmission resource and the time domain position of the reference SFN.
  • Step 304 The terminal receives the first signaling.
  • the terminal may acquire the first index value after receiving the first signaling.
  • the network device sends the first signaling to the terminal, and the first signaling carried in the first signaling An index value is 3, and after receiving the first signaling, the terminal may determine that the first index value is 3 according to the first signaling.
  • the first signaling is DCI
  • the first index value is carried in a time interval (Time gap) field of the DCI.
  • the first index value carried in the time interval field of DCI is 2 (assuming that the index value starts from 0), and the mini-slot interval set includes the interval number of 5 mini-slots as an example, 5
  • the interval numbers of mini-slots are 1, 2, 4, 6, 8, respectively.
  • the mini-slot interval set includes five candidate mini-slot intervals
  • the first candidate mini-slot interval refers to the mini-slot to which the first sidelink transmission resource belongs and the mini-slot to which the first signaling belongs.
  • the number of slot intervals is 1 mini-slot
  • the second candidate mini-slot interval means that the interval between the mini-slot to which the first sidelink transmission resource belongs and the mini-slot to which the first signaling belongs is 2
  • the third candidate mini-slot interval means that the interval between the mini-slot to which the first sidelink transmission resource belongs and the mini-slot to which the first signaling belongs is 4 mini-slots.
  • the terminal After receiving the DCI, the terminal can obtain the first index value 2. Since the index value starts from 0, the index value 2 corresponds to the third index value in the sequence number of the index value. According to the first index value, the terminal determines that the interval number of the corresponding mini-slot is 4 in the mini-slot interval set. The terminal determines in the mini-slot interval set according to the first index value that the mini-slot to which the first sidelink transmission resource belongs is different from the mini-slot to which the first signaling belongs by 4 mini-slots.
  • Step 305 the terminal determines the first mini-slot interval according to the relevant information of the first mini-slot interval.
  • the relevant information of the first mini-slot interval may optionally include the first index value of the first mini-slot interval, based on which, the terminal may determine the first mini-slot interval.
  • the relevant information of the first mini-slot interval includes the first index value of the first mini-slot interval.
  • step 305 is as follows:
  • the terminal determines the first slot interval in the mini-slot interval set according to the relevant information of the first mini-slot interval.
  • the first mini-slot interval is used to determine the first time-domain position of the first sidelink transmission resource, and the first mini-slot interval is the ith candidate mini-slot interval in the mini-slot interval set , i is determined according to the first index value.
  • the terminal can obtain the mini-slot interval set; according to step 303 and step 304, the terminal can obtain the first index value. Based on this, the terminal may determine the first mini-slot interval in the mini-slot interval set according to the first index value.
  • the terminal determines the first mini-slot interval according to the first index value is the third candidate mini-slot interval in the set of mini-slot intervals. That is, the first mini-slot interval is 4.
  • Step 306 the terminal determines a first time domain position of the first sidelink transmission resource.
  • the terminal may determine the first mini-slot interval according to the first signaling sent by the network device, further, according to the time domain position of the reference SFN and the The first mini-slot interval determines the first time domain position corresponding to the first sidelink transmission resource.
  • one time slot includes two mini-slots, and the terminal receives the first signaling sent by the network device in mini-slot 3, and the first signaling is carried in the PDCCH. That is, the first signaling is on mini-slot 3.
  • the terminal can determine the first time domain position.
  • the time-domain position of mini-slot 3 after 4 mini-slots is the mini-slot to which the first sidelink transmission resource belongs. That is, according to determination mode 1, it may be determined that the first time domain position is mini-slot 7 .
  • Determination mode 2 the first time domain position is a time domain position separated by n logic mini-slots after the second time domain position.
  • the resource pool refers to a resource set composed of schedulable resources of the terminal, and the resource pool limits the time-frequency resource range of the sidelink communication.
  • one time slot includes two mini-slots, and the terminal receives the first signaling sent by the network device in mini-slot 3, and the first signaling is carried in the PDCCH.
  • the network device configures two resource pools for the terminal, namely resource pool 1 and resource pool 2.
  • Resource pool 1 includes mini-slots with even indexes
  • resource pool 2 includes mini-slots with odd indexes
  • mini-slots 3 belongs to the mini-slot in resource pool 2.
  • the terminal can determine that the first target resource pool is the resource pool 2 according to the first resource pool index. According to the foregoing, the logical mini-slots belong to the mini-slots in the resource pool 2 .
  • the terminal can determine the first time domain position. Specifically, since the first target resource pool is resource pool 2, mini-slot 3 is in The time-domain positions separated by 4 logical mini-slots are the mini-slots to which the first sidelink transmission resource belongs. That is, according to determination mode 2, it may be determined that the first time domain position is mini-slot 11 .
  • Step 307 the terminal determines the time domain position of the mth sidelink transmission resource.
  • the first signaling also carries first indication information, the first indication information is used to indicate the second mini-slot interval, and the time domain position of the mth sidelink transmission resource is based on the first time domain position and the second mini-slot interval is determined.
  • the first signaling is DCI or RRC
  • the second mini-slot interval is carried in the time-domain resource allocation field of DCI or RRC, which can be represented by TRIV.
  • the second mini-slot interval is used to indicate the number of mini-slots between the mini-slot to which the mth sidelink transmission resource belongs and the mini-slot to which the first sidelink transmission resource belongs, that is, to indicate The mini-slot interval of the m-th sidelink transmission resource relative to the first sidelink transmission resource, where m is an integer greater than 1.
  • the terminal After determining the time-domain position of the first sidelink transmission resource, the terminal needs to determine the time-domain positions of the remaining sidelink transmission resources.
  • the time domain position of the mth sidelink transmission resource is determined through the second mini-slot interval.
  • the relationship between TRIV and the number of sidelink transmission resources can refer to the relational expression given in the foregoing content, or be set according to actual needs. Do limited.
  • the time domain of the second and third sidelink transmission resources can be determined according to t 1 and t 2 Location.
  • t 1 represents the mini-slot interval between the second sideline transmission resource and the first sideline transmission resource
  • t 2 represents the interval between the third sideline transmission resource and the first sideline transmission resource the mini-slot interval.
  • the sidelink transmission resource determination method and sending method enable the terminal to determine the first mini-slot interval by carrying information about the first mini-slot interval in the first signaling , so as to determine the mini-slot to which the first sidelink transmission resource belongs; at the same time, the terminal determines the mini-slots to which the remaining sidelink transmission resources belong according to the mini-slot to which the first sidelink transmission resource belongs.
  • the information about the first mini-slot interval includes a first index value of the first mini-slot interval, and the terminal determines the first mini-slot interval in the mini-slot interval set according to the index value, thereby determining the first Mini-slots to which sidelink transmission resources belong.
  • the transmission method of the sidelink transmission resources is applied to the sidelink communication system shown in FIG. 1 as an example.
  • the sidelink communication system includes terminals and network devices, and the configuration signaling includes the first signaling as an example.
  • the method for transmitting sidelink transmission resources provided in the embodiment of the present application includes the following steps:
  • Step 401 The network device sends the first signaling to the terminal.
  • the first signaling carries the second indication information and the third indication information.
  • the second indication information is used to determine the first time slot to which the first sideline transmission resource belongs, and the third indication information is used to determine the ith mini-slot of the first sideline transmission resource in the first time slot, i is an integer not less than 0.
  • the first time slot includes at least one mini-slot.
  • Step 402 The terminal receives the first signaling.
  • the terminal may acquire the second indication information and the third indication information after receiving the first signaling.
  • the terminal can determine the time slot to which the first sidelink transmission resource belongs according to the second indication information; then, the terminal can determine the mini-slot in the time slot to which the first sideline transmission resource belongs according to the third indication information Location.
  • the second indication information is used to indicate the number of time slots between the time slot to which the first sidelink transmission resource belongs and the time slot to which the first signaling belongs.
  • the second indication information is used to indicate the time interval between the time slot to which the first sidelink transmission resource belongs and the reference SFN.
  • the terminal receives the DCI sent by the network device, and the time interval field of the DCI carries the second indication information, and the second indication information includes the second index value of the first time slot interval, and the second index The value is used to determine the number of slots between the slot to which the first sidelink transmission resource belongs and the slot to which the DCI belongs.
  • the third indication information is used to indicate the mini-slot position of the first sidelink transmission resource in the corresponding time slot.
  • the third indication information includes an N-bit information field, and the N-bit information field is used to indicate the position of the mini-slot in the time slot.
  • the first signaling includes a 1-bit information field, which is used to indicate the first mini-slot in the time slot when the value of the information field is 0. When the value of this information field is 1, it is used to indicate the second mini-slot in the time slot.
  • Step 403 The terminal determines the first time slot to which the first sidelink transmission resource belongs according to the second indication information.
  • the second indication information is used to indicate the number of time slots between the time slot to which the first sidelink transmission resource belongs and the time slot to which the first signaling belongs.
  • the second indication information includes related information of the first time slot interval, and the related information is used to determine the first time slot mentioned in the first sidelink transmission resource.
  • the second indication information includes a second index value of the first time slot interval, and the terminal determines the first time slot according to the index value.
  • the DCI time interval field carries a second index value of the first time slot interval, and the second index value is used to determine the time slot to which the first sidelink transmission resource belongs and the time slot to which the first sidelink transmission resource belongs.
  • the terminal After receiving the DCI sent by the network device, the terminal can uniquely determine the time slot to which the first sidelink transmission resource belongs according to the time slot to which the DCI belongs and the number of intervals corresponding to the first index value, which is the first time slot. Gap.
  • Step 404 The terminal determines the ith mini-slot of the first sidelink transmission resource in the first time slot according to the third indication information.
  • the third indication information is used to indicate the mini-slot position of the first sidelink transmission resource in the corresponding time slot.
  • the terminal may obtain the third indication information, and determine according to the third indication information that the first sidelink transmission resource is at the end of the i-th mini-slot in the first time slot.
  • the terminal may determine the mini-slot position of the first sidelink transmission resource in the at least two mini-slots according to the third indication information.
  • the third indication information is used to indicate that the first sidelink transmission resource corresponds to the second mini-slot in the time slot to which it belongs.
  • Step 405 the terminal determines the mini-slot to which the mth sidelink transmission resource belongs.
  • the first signaling is DCI or RRC
  • the second mini-slot interval is carried in the time-domain resource allocation field of DCI or RRC, which can be represented by TRIV.
  • the second mini-slot interval is used to indicate the mini-slot interval of the mth sidelink transmission resource relative to the first sidelink transmission resource, and m is an integer greater than 1.
  • the sidelink transmission resources allocated by the network device to the terminal there may be more than one sidelink transmission resource, and the time domain position of each sidelink transmission resource needs to be determined. After the mini-slot to which the first sidelink transmission resource belongs is determined, it is also necessary to determine the mini-slots to which the remaining sidelink transmission resources belong.
  • the mini-slots to which the second and third sidelink transmission resources belong can be determined according to t1 and t2 .
  • mini-slot represents the mini-slot interval between the second sideline transmission resource and the first sideline transmission resource
  • t 2 represents the interval between the third sideline transmission resource and the first sideline transmission resource the mini-slot interval.
  • the mini-slot to which the mth sidelink transmission resource belongs is r intervals after the time domain position of the first sidelink transmission resource Time domain position of the logical mini-slot, m is an integer greater than 1.
  • the second resource pool index is used to indicate the second target resource pool
  • r is the second mini-slot interval
  • the logical mini-slot is a mini-slot belonging to the second target resource pool
  • the first sidelink transmission resource The temporal location belongs to the second target resource pool.
  • the steps on the terminal side can be independently an embodiment of a method for determining sidelink transmission resources
  • the steps on the network device side can be independently an embodiment of a method for sending sidelink transmission resources
  • the specific explanation of the steps of the method for determining the sidelink transmission resources and the steps of the sending method can refer to the above content, and will not be repeated here.
  • the method for determining and sending sidelink transmission resources enables the terminal to use the second indication information and the third indication information carried in the first signaling to enable the terminal to
  • the third indication information determines the mini-slot to which the first sidelink transmission resource belongs; at the same time, the terminal determines the mini-slots to which the remaining sidelink transmission resources belong according to the mini-slot to which the first sidelink transmission resource belongs.
  • Fig. 16 shows a flowchart of another method for transmitting sidelink transmission resources provided by an exemplary embodiment of the present application.
  • the transmission method of the sidelink transmission resources is applied to the sidelink communication system shown in FIG. 1 as an example.
  • the sidelink communication system includes terminals and network devices, and the configuration signaling includes the first signaling as an example.
  • the method for transmitting sidelink transmission resources provided in the embodiment of the present application includes the following steps:
  • Step 501 The network device sends second signaling to the terminal.
  • the second signaling is used to configure a time slot interval set.
  • the second signaling is RRC signaling
  • the time slot interval set is carried in the parameter sl-DCI-ToSL-Trans.
  • Step 502 The terminal receives the second signaling.
  • the terminal may acquire the time slot interval set.
  • the network device sends the RRC signaling to the terminal, and the signaling includes the parameter sl-DCI-ToSL-Trans.
  • the parameter sl-DCI-ToSL-Trans ⁇ 1, 2, 4, 6, 8, 12, 16, 32 ⁇ .
  • the terminal After receiving the second signaling, the terminal can obtain a set of time slot intervals as ⁇ 1, 2, 4, 6, 8, 12, 16, 32 ⁇ . Wherein, the slot interval set includes eight candidate slot intervals.
  • step 501 and step 502 are optional steps. That is, during the transmission of the sidelink transmission resource, the second signaling may be received before the current transmission, or may be received during the current transmission.
  • the relevant information of the first time slot interval is used to determine the first time slot interval, so that the terminal can determine the first time slot to which the first sidelink transmission resource belongs.
  • the first time slot interval is used to indicate the number of time slots between the first time slot to which the first sidelink transmission resource belongs and the time slot to which the configuration signaling belongs. For example, if the first time slot interval is 4, then there are 4 time slots between the first time slot and the time slot to which the first signaling belongs.
  • the related information of the first time slot interval includes a second index value of the first time slot interval.
  • the second index value is used to determine the first slot interval in the slot interval set.
  • the value k of the second index value is used to indicate that the first slot interval is the kth slot interval in the slot interval set.
  • the terminal can determine the number of time slots between the time slot to which the first sidelink transmission resource belongs and the time slot to which the first signaling belongs, and the number of intervals is determined according to the second index value.
  • Step 504 the terminal receives the first signaling.
  • the network device sends the first signaling to the terminal, and the second index carried in the first signaling The value is 3, and after receiving the first signaling, the terminal may determine that the second index value is 3 according to the first signaling.
  • the first signaling is a configuration signaling sent by the network device to the terminal.
  • the time slot interval set includes the number of intervals of 5 time slots, each of which is 1 , 2, 4, 6, 8.
  • the time slot interval set may be obtained according to step 501 and step 502, or may be obtained before the transmission of the sidelink transmission resource this time.
  • Step 505 the terminal determines the first time slot interval according to the relevant information of the first time slot interval.
  • the relevant information of the first time slot interval may optionally include the second index value of the first time slot interval, based on which, the terminal may determine the first time slot interval.
  • the relevant information of the first time slot interval includes the second index value of the first time slot interval.
  • step 505 is as follows:
  • the terminal determines the first time slot interval in the time slot interval set according to the relevant information of the first time slot interval.
  • the first time slot interval is used to determine the first time slot to which the first sidelink transmission resource belongs, and the first time slot interval is the ith candidate time slot interval in the time slot interval set, and i is based on the The second index value is determined.
  • the terminal can obtain the second index value; according to step 503 and step 504, the terminal can obtain the time slot interval set. Based on this, the terminal may determine the first slot interval in the slot interval set according to the second index value.
  • the first time slot is determined based on the second time domain position and the first time slot interval
  • the second time domain position is the time domain position for receiving the first signaling
  • the second time domain position is the reference SFN The corresponding time domain position.
  • the terminal may determine the first time slot interval according to the first signaling sent by the network device, further, according to the time domain position of the reference SFN and the first time slot interval A time slot interval determines the time domain position corresponding to the first sidelink transmission resource.
  • the time interval indicated by the first signaling is based on time slot granularity.
  • the terminal may determine the first time slot to which the first sidelink transmission resource belongs according to the first time slot interval.
  • the embodiment of this application provides the following two optional determination methods:
  • Determination mode 1 the first time slot is a time domain position separated by q time slots after the second time domain position.
  • the terminal receives the first signaling sent by the network device in time slot 3, that is, the first signaling is in time slot 3.
  • the time domain position of time slot 3 after an interval of 4 time slots is the first time slot to which the first sidelink transmission resource belongs.
  • Determination mode 2 the first time slot is a time domain position separated by q logical time slots after the second time domain position.
  • the first signaling also carries a second resource pool index
  • the second resource pool index is used to indicate the second target resource pool
  • the logical time slot is a time slot belonging to the second target resource pool
  • the resource pool refers to a resource set composed of schedulable resources of the terminal, and the resource pool limits the time-frequency resource range of the sidelink communication.
  • the terminal receives the first signaling sent by the network device at time slot 3, and the network device configures two resource pools for the terminal, namely resource pool 1 and resource pool 2, resource pool 1 includes time slots with even indexes, Resource pool 2 includes mini-slots with odd indexes, and time slot 3 belongs to the time slots in resource pool 2 .
  • the terminal can determine that the second target resource pool is the resource pool 2 according to the second resource pool index. According to the aforementioned content, the logical time slots belong to the time slots in the resource pool 2 .
  • Step 507 The terminal determines the ith mini-slot of the first sidelink transmission resource in the first time slot according to the third indication information.
  • the third indication information is used to indicate the mini-slot position of the first sidelink transmission resource in the corresponding time slot.
  • the terminal may obtain the third indication information, and determine according to the third indication information that the first sidelink transmission resource is at the end of the i-th mini-slot in the first time slot.
  • the terminal may determine the specific mini-slot position of the first sidelink transmission resource in the at least two mini-slots according to the third indication information.
  • the third indication information is used to indicate that the first sidelink transmission resource corresponds to the second mini-slot in the time slot to which it belongs.
  • Step 508 the terminal determines the mini-slot to which the mth sidelink transmission resource belongs.
  • the first signaling also carries fourth indication information, which is used to indicate the second mini-slot interval, and the mini-slot to which the mth sideline transmission resource belongs is based on the The time domain position of the row transmission resource and the interval of the second mini-slot are determined, and m is an integer greater than 1.
  • the first signaling is DCI or RRC
  • the second mini-slot interval is carried in the time-domain resource allocation field of DCI or RRC, which can be represented by TRVI.
  • the second mini-slot interval is used to indicate the mini-slot interval of the mth sidelink transmission resource relative to the first sidelink transmission resource, and m is an integer greater than 1.
  • step 508 is the same as step 405, which can be used as a reference and will not be repeated here.
  • the steps on the terminal side can be independently an embodiment of a method for determining sidelink transmission resources
  • the steps on the network device side can be independently an embodiment of a method for sending sidelink transmission resources
  • the specific explanation of the steps of the method for determining the sidelink transmission resources and the steps of the sending method can refer to the above content, and will not be repeated here.
  • the sidelink transmission resource determination method and sending method enable the terminal to determine the first time slot interval by carrying the relevant information of the first time slot interval in the second indication information, thereby determining The time slot to which the first sideline transmission resource belongs, and then the terminal determines the mini-slot position of the first sideline transmission resource in the time slot to which it belongs through the third indication information; at the same time, the terminal The associated mini-slot determines the mini-slot to which the remaining sidelink transmission resources belong.
  • the information about the first slot interval includes a second index value of the first slot interval, and the terminal determines the first slot interval in the slot interval set according to the index value, thereby determining the first sidelink transmission The slot to which the resource belongs.
  • a receiving module 1720 configured to receive configuration signaling sent by the network device
  • the configuration signaling includes first signaling
  • the receiving module 1720 is configured to receive the first signaling sent by the network device, and the first signaling carries information about the first mini-slot interval. information; a determining module 1740, configured to determine the first mini-slot interval according to relevant information of the first mini-slot interval; determine the first time-domain position of the first sidelink transmission resource, and the first time-domain position is based on the second The time domain position is determined by the first mini-slot interval, and the second time domain position is the time domain position for receiving the first signaling.
  • the relevant information of the first mini-slot interval includes a first index value of the first mini-slot interval.
  • the value j of the first index value is used to indicate that the first mini-slot interval is the jth mini-slot interval in the mini-slot interval set.
  • the first time domain position is a time domain position separated by n minislots after the second time domain position, where n is the first minislot interval.
  • the first signaling also carries a first resource pool index, and the first resource pool index is used to indicate the first target resource pool; the first time domain position is at the second time domain position Afterwards, the time domain position of n logical mini-slots, n is the first mini-slot interval, the logical mini-slot belongs to the mini-slot in the first target resource pool, and the first time domain position belongs to the first target resource pool .
  • the first signaling also carries a first resource pool index, and the first resource pool index is used to indicate the first target resource pool;
  • the time domain position of the mth sideline transmission resource is After the first time domain position, the time domain position is separated by p logical mini-slots, p is the second mini-slot interval, the logical mini-slot is a mini-slot belonging to the first target resource pool, and the first time domain position Belongs to the first target resource pool.
  • the first signaling is DCI
  • the first index value is carried in a time interval field of the DCI.
  • the receiving module 1720 is further configured to receive a second signaling sent by a network device, where the second signaling is used to configure a mini-slot interval set.
  • the second signaling is RRC signaling
  • the set of mini-slot intervals is carried in the parameter sl-DCI-ToSL-Trans.
  • the configuration signaling includes first signaling
  • the receiving module 1720 is configured to receive the first signaling sent by the network device, and the first signaling carries the second indication information and the third indication Information; a determining module 1740, configured to determine the first time slot to which the first sideline transmission resource belongs according to the second indication information; and determine the i-th time slot of the first sideline transmission resource in the first time slot according to the third indication information mini-slots.
  • the second indication information includes information about the first time slot interval
  • the determining module 1740 is configured to determine the first time slot interval according to the information about the first time slot interval; determine the first time slot interval A time slot.
  • the first time slot is determined based on a second time domain position and a first time slot interval, and the second time domain position is a time domain position for receiving the first signaling.
  • the value k of the second index value is used to indicate that the first time slot interval is the kth one in the time slot interval set.
  • the first time slot is a time domain position separated by q time slots after the second time domain position, where q is the first time slot interval.
  • the first signaling also carries a second resource pool index, and the second resource pool index is used to indicate the second target resource pool;
  • the first time slot is after the second time domain position Time domain positions at an interval of q logical time slots, where q is the first time slot interval, the logical time slots belong to the time slots in the second target resource pool, and the first time slot belongs to the second target resource pool.
  • the first signaling also carries a second resource pool index, and the second resource pool index is used to indicate the second target resource pool;
  • the mini-slot to which the mth sideline transmission resource belongs is the time domain position separated by r logical mini-slots after the time domain position of the first sidelink transmission resource, r is the interval of the second mini-slot, and the logical mini-slot is the micro-time belonging to the second target resource pool slot, the time domain position of the first sidelink transmission resource belongs to the second target resource pool.
  • the receiving module 1720 is further configured to receive a second signaling sent by a network device, where the second signaling is used to configure a time slot interval set.
  • the second signaling is RRC signaling
  • the time slot interval set is carried in the parameter sl-DCI-ToSL-Trans.
  • FIG. 18 shows a structural block diagram of an apparatus for sending sidelink transmission resources provided by an exemplary embodiment of the present application.
  • the apparatus can be implemented as a network device, or can be implemented as a part of the network device.
  • the apparatus includes:
  • the sending module 1820 is configured to send configuration signaling to the terminal, where the configuration signaling is used to determine time domain positions of one or more sidelink transmission resources, and the sidelink transmission resources are used for sidelink transmission based on mini-slots.
  • the configuration signaling includes first signaling
  • the sending module 1820 is configured to send the first signaling to the terminal, where the first signaling carries information about the first mini-slot interval;
  • the relevant information of the first mini-slot interval is used to determine the first mini-slot interval
  • the first mini-slot interval is used to determine the first time-domain position of the first sidelink transmission resource
  • the first time-domain position is Determined based on the second time domain position and the first mini-slot interval
  • the second time domain position is a time domain position for receiving the first signaling.
  • the first mini-slot interval is determined by the terminal in the mini-slot interval set according to information about the first mini-slot interval.
  • the relevant information of the first mini-slot interval includes a first index value of the first mini-slot interval.
  • the value j of the first index value is used to indicate that the first mini-slot interval is the jth mini-slot interval in the mini-slot interval set.
  • the first signaling also carries a first resource pool index, and the first resource pool index is used to indicate the first target resource pool; the first time domain position is at the second time domain position Afterwards, the time domain position of n logical mini-slots, n is the first mini-slot interval, the logical mini-slot belongs to the mini-slot in the first target resource pool, and the first time domain position belongs to the first target resource pool .
  • the first signaling also carries first indication information
  • the first indication information is used to determine the second mini-slot interval
  • the terminal based on the first time domain position and the second mini-slot
  • the interval determines the time domain position of the mth sideline transmission resource
  • the second mini-slot interval is used to indicate the minislot interval of the mth sideline transmission resource relative to the first sideline transmission resource.
  • the first signaling also carries a first resource pool index, and the first resource pool index is used to indicate the first target resource pool;
  • the time domain position of the mth sideline transmission resource is After the first time domain position, the time domain position is separated by p logical mini-slots, p is the second mini-slot interval, the logical mini-slot is a mini-slot belonging to the first target resource pool, and the first time domain position Belongs to the first target resource pool.
  • the first signaling is DCI, and the first index value is carried in a time interval field of the DCI.
  • the sending module 1820 is further configured to send second signaling to the terminal, where the second signaling is used to configure the mini-slot interval set.
  • the configuration signaling includes first signaling
  • the sending module 1820 is configured to send the first signaling to the terminal, where the first signaling carries second indication information and third indication information;
  • the second indication information is used to determine the first time slot to which the first sideline transmission resource belongs
  • the third indication information is used to determine the ith mini-slot of the first sideline transmission resource in the first time slot .
  • the second indication information includes information about the first time slot interval; wherein, the information about the first time slot interval is used to determine the first time slot interval, and the first time slot interval is used for To determine the first time slot to which the first sidelink transmission resource belongs, the first time slot is determined based on the second time domain position and the first time slot interval, and the second time domain position is the time domain for receiving the first signaling Location.
  • the first time slot interval is determined by the terminal in the time slot interval set according to the correlation relationship of the first time slot interval.
  • the value k of the second index value is used to indicate that the first time slot interval is the kth one in the time slot interval set.
  • the first signaling also carries a second resource pool index, and the second resource pool index is used to indicate the second target resource pool;
  • the first time slot is after the second time domain position Time domain positions at an interval of q logical time slots, where q is the first time slot interval, the logical time slots belong to the time slots in the second target resource pool, and the first time slot belongs to the second target resource pool.
  • the first signaling also carries fourth indication information
  • the fourth indication information is used to determine the second mini-slot interval
  • the terminal is based on the time domain position of the first sidelink transmission resource and the second mini-slot interval determine the mini-slot to which the m-th sideline transmission resource belongs
  • the second mini-slot interval is used to indicate the mini-slot of the m-th sideline transmission resource relative to the first sideline transmission resource interval.
  • the first signaling is DCI
  • the second index value is carried in a time interval field of the DCI.
  • the sending module 1820 is further configured to send second signaling to the terminal, where the second signaling is used to configure the time slot interval set.
  • the second signaling is RRC signaling
  • the time slot interval set is carried in the parameter sl-DCI-ToSL-Trans.
  • an embodiment of the present application also provides a terminal.
  • the terminal includes a processor, a transceiver connected to the processor, and a memory for storing executable instructions of the processor.
  • the processor is configured to load and execute executable instructions. Instructions to implement the method for determining sideline transmission resources as described above.
  • an embodiment of the present application also provides a network device.
  • the network device includes a processor, a transceiver connected to the processor, and a memory for storing executable instructions of the processor.
  • the processor is configured to load and execute The instructions can be executed to implement the method for sending sideline transmission resources as described above.
  • an embodiment of the present application further provides a computer-readable storage medium, where executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by a processor to implement the above-mentioned lateral transmission resources.
  • FIG. 19 shows a schematic structural diagram of a communication device (terminal or network device) provided by an exemplary embodiment of the present application.
  • the communication device includes: a processor 1901 , a receiver 1902 , a transmitter 1903 , a memory 1904 and a bus 1905 .
  • the processor 1901 includes one or more processing cores, and the processor 1901 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1902 and the transmitter 1903 can be implemented as a communication component, which can be a communication chip.
  • the memory 1904 is connected to the processor 1901 through the bus 1905 .
  • the memory 1904 may be used to store at least one instruction, and the processor 1901 is used to execute the at least one instruction, so as to implement the method for determining the lateral transmission resource or the various steps in the sending end mentioned in the above method embodiments.
  • volatile or non-volatile storage devices include but not limited to: magnetic disk or optical disk, electrically erasable and programmable Electrically-Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), Read-Only Memory (Read-Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).
  • EEPROM Electrically-Erasable Programmable Read Only Memory
  • EPROM Erasable Programmable Read Only Memory
  • SRAM Static Random Access Memory
  • Read-Only Memory Read-Only Memory
  • PROM Programmable Read-Only Memory
  • the program can be stored in a computer-readable storage medium.
  • the above-mentioned The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, and the like.

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Abstract

La présente demande se rapporte au domaine des communications mobiles et concerne un procédé de détermination de ressource de transmission de liaison latérale et un procédé et un appareil d'envoi, un dispositif et un support. Le procédé de détermination de ressource de transmission de liaison latérale comprend les étapes suivantes : un terminal reçoit une signalisation de configuration envoyée par un dispositif de réseau ; et le terminal détermine une position dans le domaine temporel d'une ressource de transmission de liaison latérale qui est utilisée pour une transmission de liaison latérale basée sur un mini créneau.
PCT/CN2021/105602 2021-07-09 2021-07-09 Procédé de détermination de ressource de transmission de liaison latérale et procédé et appareil d'envoi, dispositif et support WO2023279399A1 (fr)

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