WO2023197218A1 - 传输资源请求方法及设备 - Google Patents

传输资源请求方法及设备 Download PDF

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Publication number
WO2023197218A1
WO2023197218A1 PCT/CN2022/086681 CN2022086681W WO2023197218A1 WO 2023197218 A1 WO2023197218 A1 WO 2023197218A1 CN 2022086681 W CN2022086681 W CN 2022086681W WO 2023197218 A1 WO2023197218 A1 WO 2023197218A1
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WIPO (PCT)
Prior art keywords
data packet
information
transmission
network device
terminal
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PCT/CN2022/086681
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English (en)
French (fr)
Inventor
张博源
卢前溪
冷冰雪
Original Assignee
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/CN2022/086681 priority Critical patent/WO2023197218A1/zh
Publication of WO2023197218A1 publication Critical patent/WO2023197218A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Definitions

  • the present disclosure belongs to the field of communication technology, and specifically relates to a transmission resource request method and device.
  • D2D Device-to-Device Communication, device-to-device communication
  • V2X Vehicle to Everything, Internet of Vehicles
  • D2D and V2X are communication architectures based on SL (Sidelink, side link) transmission.
  • 3GPP 3rd Generation Partnership Project
  • mode 1 the transmission resources of the terminal are allocated by the network device, and the terminal sends data on the sidelink according to the resources allocated by the network device; among them, the network device can allocate resources for a single transmission to the terminal, or can also allocate resources for a single transmission to the terminal.
  • the terminal allocates resources for semi-static transmission.
  • mode 2 the vehicle-mounted terminal selects resources from the resource pool for data transmission.
  • the purpose of the embodiments of the present disclosure is to provide a transmission resource request method and device that can solve the problem of relatively large forwarding delay of relay data.
  • embodiments of the present disclosure provide a transmission resource request method, which is applied to a relay terminal.
  • the method includes: receiving data packet transmission instruction information sent by a source remote terminal; and sending a request to a network device according to the data packet transmission instruction information. Send transmission resource request information; wherein the transmission resource request information is used by the relay terminal to request the network device for transmission resources of service data transmitted by the source remote terminal to the destination remote terminal.
  • inventions of the present disclosure provide a terminal device.
  • the terminal device is a relay terminal.
  • the relay terminal includes: a receiving module and a sending module; a receiving module configured to receive a data packet transmission instruction sent by the source remote terminal. information; the sending module is used to send transmission resource request information to the network device according to the data packet transmission instruction information received by the receiving module; wherein the transmission resource request information is used for the relay terminal to request the network device to transmit the source remote terminal to the destination Transmission resources for service data transmitted by remote terminals.
  • embodiments of the present disclosure provide a transmission resource request method, which is applied to the source remote terminal.
  • the method includes: sending data packet transmission instruction information to the relay terminal; wherein the data packet transmission instruction information instructs the relay terminal , requesting from the network device transmission resources for transmitting service data transmitted from the source remote terminal to the destination remote terminal.
  • inventions of the present disclosure provide a terminal device.
  • the terminal device is a source remote terminal.
  • the source remote terminal includes: a sending module; a sending module configured to send data packet transmission instruction information to the relay terminal; wherein , the data packet transmission instruction information instructs the relay terminal to request from the network device transmission resources for the service data transmitted by the source remote terminal to the destination remote terminal.
  • embodiments of the present disclosure provide a transmission resource request method, which is applied to a network device.
  • the method includes: receiving transmission resource request information sent by a relay terminal; wherein the transmission resource request information is obtained by the relay terminal according to the source of the request.
  • the data packet transmission instruction information sent by the end terminal triggers the transmission, and the transmission resource request information is used by the relay terminal to request the network device for transmission resources of the service data transmitted by the source remote terminal to the destination remote terminal.
  • inventions of the present disclosure provide a network device.
  • the network device includes: a receiving module; a receiving module configured to receive transmission resource request information sent by a relay terminal; wherein the transmission resource request information is obtained by the relay terminal according to The transmission resource request information is triggered by the data transmission instruction information sent by the source remote terminal.
  • the transmission resource request information is used by the relay terminal to request the network device for transmission resources of the service data transmitted by the source remote terminal to the destination remote terminal.
  • inventions of the present disclosure provide a terminal device.
  • the terminal device includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor.
  • the program or instructions are When executed by the processor, the steps of the transmission resource request method as described in the first aspect or the third aspect are implemented.
  • an embodiment of the present disclosure provides a network device.
  • the network device includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor.
  • the program or instructions are When executed by the processor, the steps of the transmission resource requesting method described in the fifth aspect are implemented.
  • embodiments of the present disclosure provide a readable storage medium, which stores programs or instructions.
  • the programs or instructions are executed by a processor, the implementation of the first aspect, the third aspect, or the third aspect is implemented.
  • embodiments of the present disclosure provide a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the first aspect. , the transmission resource request method described in the third aspect or the fifth aspect.
  • embodiments of the present disclosure provide a computer program product containing instructions that, when run on a computer, cause the computer to execute the transmission resource request method as described in the first aspect, the third aspect or the fifth aspect. A step of.
  • the relay terminal receives the data packet transmission instruction information sent by the source remote terminal, and then according to the data packet transmission instruction information, it can send transmission resource request information to the network device, that is, the relay terminal can receive Before the data packet reaches the source remote terminal, the network device can be requested to transmit the service data transmitted by the source remote terminal to the destination remote terminal. That is, the resource request can be reported in advance, so that the relay data can be transmitted before reaching the relay terminal. It can then be forwarded immediately, which can save the time occupied by resource requests, thus reducing the forwarding delay of relay data.
  • Figure 1 is a schematic diagram of a resource allocation model in related technologies
  • Figure 2 is a schematic diagram of the coverage range considered by a relay terminal in the related art
  • Figure 3 is a schematic diagram of a terminal-to-terminal relay communication architecture provided by an embodiment of the present disclosure
  • Figure 4A is one of the flow diagrams of the transmission resource request method provided by an embodiment of the present disclosure.
  • Figure 4B is a second schematic flowchart of the transmission resource request method provided by an embodiment of the present disclosure.
  • Figure 5 is one of the possible structural schematic diagrams of a terminal device provided by an embodiment of the present disclosure.
  • Figure 6 is a second possible structural schematic diagram of a terminal device provided by an embodiment of the present disclosure.
  • Figure 7 is one of the possible structural schematic diagrams of a network device provided by an embodiment of the present disclosure.
  • Figure 8 is a third possible structural diagram of a terminal device provided by an embodiment of the present disclosure.
  • Figure 9 is a second possible structural diagram of a network device provided by an embodiment of the present disclosure.
  • Figure 10 is a hardware schematic diagram of a device provided by an embodiment of the present disclosure.
  • Device-to-device communication is a communication method based on sidelink transmission technology.
  • Mode A Two resource allocation modes are defined in the LTE V2X scenario, namely: Mode A and Mode B.
  • Mode A The transmission resources of the terminal are allocated by the network device, and the terminal sends data on the sidelink according to the resources allocated by the network device.
  • the network device can allocate single-transmission resources to the terminal, or can allocate semi-static transmission resources to the terminal.
  • Mode B The vehicle-mounted terminal selects resources from the resource pool for data transmission.
  • FIG. 1 is a schematic diagram of a resource allocation model in related art.
  • (a) in Figure 1 shows the resource allocation method of Mode A, in which the vehicle-mounted terminal 102 and the vehicle-mounted terminal 103 are connected through a side link, and the network device 101 can configure resources for the vehicle-mounted terminal through a downlink.
  • (b) in Figure 1 shows the resource allocation method of Mode B, in which the vehicle-mounted terminal 102 and the vehicle-mounted terminal 103 are connected through a side link, the vehicle-mounted terminal selects resources from the resource pool, and the network device 101 does not need to be a vehicle-mounted terminal. Terminal device configuration resources.
  • D2D research is mainly divided into four stages, in order: ProSe (Proximity based Service, short-range service), V2X, FeD2D (Further Enhancements to LTE Device to Device, further enhance LTE, device to device) and multi-carrier four-stage research.
  • the position of the resource pool in the time domain can be configured (for example, the resource pool is discontinuous in the time domain) so that the UE can transmit (send/receive) data discontinuously on the sidelink. Power saving effect.
  • the Internet of Vehicles system uses end-to-end direct communication, which has higher spectrum efficiency and lower transmission delay.
  • the 3GPP conclusion in the pre-research stage is that the base station can configure the DRX (Discontinuous Reception) parameters of the remote terminal through a relay terminal.
  • DRX discontinuous Reception
  • the UE can support the division of data packets and use multiple carriers to transmit data packets to improve the data transmission rate; the UE can support the replication of data packets, copying one data packet into two identical copies, using Transmitted on two carriers to improve transmission reliability.
  • multi-carrier reception enhancement can be supported.
  • V2X side-link communication supports side-chain packet replication, which can be executed at the PDCP (Packet Data Convergence Protocol) layer of the UE.
  • the PDCP PDU Packet Data unit
  • the PDCP PDU is replicated at the PDCP entity.
  • PDCP PDUs copied by the same PDCP entity can be submitted to two different RLC (Radio Link Control, Radio Link Control Layer Protocol) entities and associated with two different side-link logical channels respectively.
  • PDCP PDUs copied by the same PDCP entity are only allowed to be transmitted on different side chain carriers.
  • the UE can activate or deactivate sidechain packet replication based on (pre)configuration. Sidechain packet replication does not apply to transports with Rel-14 transport profile (TS 23.285[72]).
  • the PPPR (ProSe Per-Packet Reliability, packet reliability) value that supports side-chain packet replication can be (pre-)configured through the PPPR threshold.
  • the UE shall perform side-link packet replication for data with configured PPPR values until packet replication configuration is deactivated for these PPPR values.
  • the UE reports the amount of data associated with one or more PPPR values and the destination address to which the data belongs through the side chain BSR (Buffer Status Report).
  • the mapping of the PPPR value to the logical channel group can be configured by the eNB (Evolved Node B, evolved Node B), and the PPPR value is reflected by the associated logical channel group ID included in the side chain BSR.
  • a list of one or more PPPR values may be reported by an RRC (Radio Resource Control) connected UE in the sidechain UE information.
  • RRC Radio Resource Control
  • NR V2X is not limited to broadcast scenarios, but further extends to unicast and multicast scenarios, and the application of V2X is studied in these scenarios.
  • NR V2X also defines two resource allocation modes for D2D/V2X, namely mode 1 and mode 2.
  • Mode 1 The transmission resources of the terminal are allocated by the network device, and the terminal sends data on the sidelink according to the resources allocated by the network device.
  • the network device may allocate single-transmission resources to the terminal, or may allocate semi-static transmission resources to the terminal.
  • Mode 2 The vehicle-mounted terminal selects resources from the resource pool for data transmission.
  • the user may be in a mixed mode, that is, he or she can use mode 1 to obtain resources and mode 2 to obtain resources at the same time.
  • the acquisition of this resource can be indicated by sidelink authorization, that is, the sidelink authorization indicates the corresponding PSCCH (Physical sidelink control CHannel, physical side link control channel) and PSSCH (Physical sidelink shared CHannel, physical The time-frequency location of the side link shared channel) resource.
  • PSCCH Physical sidelink control CHannel, physical side link control channel
  • PSSCH Physical sidelink shared CHannel, physical The time-frequency location of the side link shared channel
  • NR V2X introduces feedback-based HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat request) retransmission, which is not limited to unicast communication, but also includes group communication. Broadcast communication.
  • HARQ Hybrid Automatic Repeat reQuest, hybrid automatic repeat request
  • UE-to-UE relay supports side-chain transmission coverage extension between two side-chain terminals and saves power.
  • the coverage options considered are as follows:
  • All UEs are within the coverage range.
  • All UEs (source UE, relay UE, target UE) are out of coverage.
  • FIG. 2 is a schematic diagram of the coverage range considered by a relay terminal, in which UE 200 is a relay UE, and UE 201 and UE 202 can be source/target UEs respectively.
  • coverage means that source/target UEs and/or UE-to-UE relay UEs are within coverage and have access to the network on Uu.
  • Uu is the air interface, which is connected to the network through the base station.
  • the sidelink of NR can be assumed between the remote terminal on PC5 and the relay terminal.
  • Cross-RAT Radio Access Technology, Radio Access Technology
  • eNB/ng-eNB does not control/configure the source of NR (New Radio, New Air Interface) UE, target UE or UE-UE relay UE.
  • NR New Radio, New Air Interface
  • UE-to-UE relay UE For end-to-end relaying, unicast data communication between the source terminal and the destination terminal is currently considered.
  • Configuring/scheduling UEs source UE, target UE or UE-to-UE relay UE
  • SN Serial Number, serial number
  • the remote UE For UE-to-UE relaying, it is assumed that the remote UE only has an active end-to-end connection through a single relay UE at a given time. Once the PC5 link is established between the source UE, the UE-to-UE relay and the target UE, relaying of data can occur between the source UE and the target UE. There are no restrictions on the RRC status of any terminal involved in the terminal relay. The requirement for service continuity only applies to end-to-network relays, not end-to-end relays.
  • first, second, etc. in the description and claims of the present disclosure are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the figures so used are interchangeable under appropriate circumstances so that embodiments of the present disclosure can be practiced in sequences other than those illustrated or described herein, and that "first,” “second,” etc. are distinguished Objects are usually of one type, and the number of objects is not limited. For example, the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution, Long Term Evolution
  • LTE-A Long Term Evolution-Advanced, LTE Evolution
  • CDMA Code Division Multiple Access, Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access, Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access, single-carrier frequency division multiple access
  • system and “network” are often used interchangeably in embodiments of the present disclosure, and the described technology may be used for both the systems and radio technologies mentioned above, as well as for other systems and radio technologies.
  • NR system for example purposes, and NR terminology is used in most of the following description, although these techniques can also be applied to applications other than NR system applications, such as 6G (6th Generation, 6th Generation) communication systems. .
  • FIG. 3 is a schematic diagram of a terminal-to-terminal relay communication architecture provided by an embodiment of the present disclosure.
  • the communication architecture includes: a source remote terminal 300, a relay terminal 301, a destination remote terminal 302 and a network device 303.
  • the relay terminal 301 forwards the service data of the source remote terminal 300 to the destination remote terminal 302, and the relay terminal 301 accesses the network through the network device 303.
  • the terminal equipment in the embodiments of the present disclosure may also be called user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device. , user terminal, wireless communication equipment, terminal, user agent or user device, etc.
  • the terminal device can be a station (ST) in the WLAN, a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, or a personal digital processing unit.
  • SIP Session Initiation Protocol
  • WLL wireless Local Loop
  • PDA Personal Digital Assistant
  • handheld devices with wireless communication capabilities computing devices or other processing devices connected to wireless modems
  • vehicle-mounted devices wearable devices
  • next-generation communication systems such as terminals in NR networks or in the future Terminals in the evolved Public Land Mobile Network (PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc.
  • 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 just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized devices that can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, and those that only focus on a certain type of application function and need to cooperate with other devices such as smartphones.
  • the network device can be a device used to communicate with mobile devices.
  • the network device can be an Access Point (AP) in WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, or a BTS in WCDMA.
  • the base station (NodeB, NB) can also be an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device or base station (gNB) in the NR network or in the future Network equipment in the evolved PLMN network, etc.
  • AP Access Point
  • BTS Base Transceiver Station
  • gNB network device or base station
  • Figure 4A is a schematic flowchart of a transmission resource request method provided by an embodiment of the present disclosure. As shown in Figure 4A, the method includes the following S401 to S403:
  • the source remote terminal sends data packet transmission instruction information to the relay terminal.
  • the data packet transmission instruction information may instruct the relay terminal to request from the network device transmission resources for transmitting service data transmitted by the source remote terminal to the destination remote terminal.
  • the relay terminal receives the data packet transmission instruction information sent by the source remote terminal.
  • the relay terminal sends transmission resource request information to the network device according to the data packet transmission instruction information.
  • the transmission resource request information is used by the relay terminal to request transmission resources from the network device for service data transmitted from the source remote terminal to the destination remote terminal.
  • the network device allocates resources to the relay terminal.
  • the source remote terminal sends a data packet to the relay terminal.
  • the data packet is a data packet of service data sent by the source remote terminal to the destination remote terminal.
  • the relay terminal forwards the data packet to the destination remote terminal.
  • the relay terminal after receiving the data packet sent by the source remote terminal, the relay terminal forwards the data packet to the source remote terminal on the resources allocated by the network device.
  • Embodiments of the present disclosure provide a transmission resource request method.
  • the relay terminal receives the data packet transmission instruction information sent by the source remote terminal, and then can send the transmission resource request information to the network device according to the data packet transmission instruction information, that is, it can make Before receiving the data packet from the source remote terminal (for example, before the data reaches the MAC entity of the relay terminal itself), the relay terminal may request the network device to transmit the service data transmitted by the source remote terminal to the destination remote terminal. Resources, that is, resource requests can be reported in advance, so that relay data can be forwarded immediately after arriving at the relay terminal, which can save the time occupied by resource requests, thereby reducing the forwarding delay of relay data.
  • the data packet transmission instruction information may instruct the relay terminal to request from the network device transmission resources for transmitting service data transmitted by the source remote terminal to the destination remote terminal before receiving the data packet from the source remote terminal.
  • the source remote terminal may first send data packet transmission instruction information to the relay terminal, instructing the relay terminal to request transmission resources for the relay data in advance.
  • the transmission time of the data packet transmission indication information includes any one of the following 1-1 to 1-3:
  • the interval between the first moment and the second moment is a preset time
  • the source remote terminal sends the initial data packet for the first periodic transmission of service data at T1.
  • the source remote terminal can To send data packet transmission instruction information at T1 time, you can send data packet transmission instruction information at T2 time.
  • T2 time is earlier than T1 time.
  • the interval between T2 time and T1 time is 1.
  • data packet transmission is sent at T2 time 3ms before T1 time. Instructions.
  • the data packet transmission indication information includes at least one of the following:
  • the concatenated data in the data packet corresponds to logical channel 1, logical channel 2 and logical channel 3, where the priority of logical channel 1 is 1, the priority of logical channel 2 is 2, and the priority of logical channel 3 is 3, then the data packet transmission indication information can carry the priority of logical channel 3.
  • the data packet transmission instruction information can carry at least one of delay 1 (i.e., the lowest delay) and delay 4 (i.e., the highest delay) .
  • HARQ attributes of the data packet indicates whether HARQ feedback is enabled.
  • the data packet transmission indication information may also include other data packet transmission related indication information, which will not be described again here.
  • the data packet transmission indication information can be transmitted in any of the following ways:
  • SL MAC CE sidelink media access layer control unit
  • the method of accessing the network through the PC5 interface does not require access to the network through the base station.
  • SCI Serial Communication Interface, serial communication interface
  • the source remote terminal can send data packet transmission indication information to the relay terminal through SL MAC CE, PC5-RRC signaling or SCI.
  • the data packet transmission instruction information can also be transmitted in other ways, and the embodiment of the present disclosure does not specifically limit this.
  • the configuration information of the SL MAC CE includes at least one of the following:
  • configured grant type1/2 (configuration grant type 1 or configuration grant type 2).
  • configured grant type 1 configured by RRC through high-level signaling (IE ConfiguredGrantConfig); configured grant type 2: instructed by DCI to activate and deactivate uplink authorization-free, and the required parameters are configured by IE ConfiguredGrantConfig, but need to be configured by IE ConfiguredGrantConfig. It is used only when DCI is activated.
  • IE ConfiguredGrantConfig configured grant type 1: configured by RRC through high-level signaling (IE ConfiguredGrantConfig)
  • configured grant type 2 instructed by DCI to activate and deactivate uplink authorization-free, and the required parameters are configured by IE ConfiguredGrantConfig, but need to be configured by IE ConfiguredGrantConfig. It is used only when DCI is activated.
  • the network device configures the SL MAC CE configuration information for the source remote terminal, then when the source remote terminal sends data packet transmission instruction information to the relay terminal, the source remote terminal can send the data packet transmission instruction Information is carried and transmitted on the SL MAC CE generated based on the configuration information of the SL MAC CE configured on the network device.
  • the configuration information of the SL MAC CE may be predefined parameters.
  • the configuration information of the SL MAC CE can be predefined as fixed parameters.
  • configuration information of SL MAC CE 1 The priority of SL MAC CE is 1, HARQ feedback can be enabled, and the dedicated sending resource pool for discovery messages cannot be used. You can use configured grant.
  • Configuration information of SL MAC CE 2 The priority of SL MAC CE is 1, HARQ feedback can be enabled, a dedicated sending resource pool for discovery messages can be used, and configured grant 2 can be used.
  • the source remote device can carry the data packet transmission instruction information based on the fixed SL MAC CE parameter configuration.
  • the fixed SL MAC CE parameter configuration determines the transmission in the SL MAC CE.
  • the above-mentioned S403 can be specifically performed through the following S43a:
  • the relay terminal When the relay terminal is in the preset mode, the relay terminal sends transmission resource request information to the network device according to the data packet transmission instruction information.
  • the preset mode may be the above-mentioned mode 1. That is, network equipment configures transmission resources.
  • the relay terminal when the relay terminal is in mode 1, if the relay terminal receives the data packet transmission instruction information sent by the source remote terminal, the relay terminal can request the network device in advance according to the data packet transmission instruction information. resource.
  • the above-mentioned S403 can be specifically performed by any one of the following S43b to S43e:
  • the relay terminal sends transmission resource request information to the network device through SL-BSR (Sidelink Buffer Status Report) according to the data packet transmission instruction information.
  • SL-BSR Segmentlink Buffer Status Report
  • the relay terminal may carry and send the transmission resource request information in the SL-BSR, that is, the relay terminal sends the SL-BSR to the network device, and the SL-BSR carries the transmission resource request information.
  • the SL-BSR in this solution is a general (or conventional) sidelink buffer status report. That is, the existing SL-BSR can be used to carry the transmission resource request information.
  • the relay terminal sends transmission resource request information to the network device through SR (Scheduling Request) according to the data packet transmission instruction information.
  • the relay terminal may carry and send the transmission resource request information in the SR, that is, the relay terminal sends the SR to the network device, and the SR carries the transmission resource request information.
  • the relay terminal sends transmission resource request information to the network device through UL MAC CE (uplink MAC CE, uplink media access layer control unit) according to the data packet transmission instruction information.
  • UL MAC CE uplink MAC CE, uplink media access layer control unit
  • the UL MAC CE can be a new UL MAC CE, which is dedicated to sending transmission resource request information.
  • the relay terminal can carry and send the transmission resource request information in the UL MAC CE. That is, the relay terminal sends the UL MAC CE to the network device, and the UL MAC CE carries the transmission resource request information.
  • the relay terminal sends transmission resource request information to the network device through Pre-SL-BSR (pre-request resource sidelink buffer status report) according to the data packet transmission instruction information.
  • Pre-SL-BSR pre-request resource sidelink buffer status report
  • the Pre-SL-BSR may be a SL-BSR dedicated to pre-requesting resources, that is, the relay terminal sends a Pre-SL-BSR to the network device, and the Pre-SL-BSR carries transmission resource request information.
  • the relay terminal after receiving the data packet transmission instruction information sent by the source remote terminal, the relay terminal can use the different transmission methods mentioned above to request transmission resources from the network device in advance before the MAC layer of the relay terminal generates data. Send resource requests to reduce the delay caused by requesting resources after the data packet has arrived at the relay terminal.
  • Pre-SL-BSR may include at least one of the following: target address information, priority information, buffer size indication information of data packets, and transmission cycle indication of data packets. Information and data packet delay indication information.
  • the target address information may correspond to the first target address indicated by the data packet transmission instruction information, and the target address information indicates the second target address; or, the target address information, The first destination address indicated by the data packet transmission indication information may be indicated.
  • the address indicated by the target address information may be the first target address or the second target address.
  • the target address information may be index information of the target address.
  • the index information of the target address may indicate the address index generated by serializing the index of the target address and the frequency point information.
  • Table 1 and Table 2 are exemplary tables of index information of target addresses provided by embodiments of the present disclosure.
  • the index information in Table 1 is the index information corresponding to the address
  • the index information in Table 2 is the address index generated by serializing the address and frequency point information.
  • the priority information included in the above-mentioned Pre-SL-BSR may be the priority information indicated in the data packet transmission indication information of the source remote terminal.
  • the priority information may be a data packet priority, a priority indicated by a logical channel ID, or a priority indicated by a logical channel group ID.
  • the packet buffer size indication information included in the above-mentioned Pre-SL-BSR may be the size of the data packet indicated in the source remote terminal data packet transmission indication information.
  • the transmission cycle indication information of the data packet included in the above-mentioned Pre-SL-BSR may be the transmission cycle of the data packet indicated in the data packet transmission indication information of the source remote terminal.
  • the above-mentioned Pre-SL-BSR includes delay indication information of the data packet, which may be the maximum delay or the minimum delay of the data packet indicated in the data packet transmission instruction information of the source remote terminal.
  • the configuration information of Pre-SL-BSR includes at least one of the following:
  • the first timer is a periodic timer dedicated to sidelink cache status reporting of pre-requested resources; for example, dedicated sl-periodicPreBSR-Timer.
  • the second timer is a timer dedicated to retransmission of the sidelink cache status report of the pre-requested resource; for example, dedicated sl-retxPreBSR-Timer.
  • the third timer is the delay timer for the scheduling request of the logical channel of the sidelink; for example, the dedicated sl-logicalChannelSR-DelayTimer.
  • the network device can configure the configuration information of Pre-SL-BSR for the relay terminal, so that after the relay terminal receives the data packet indication information sent by the source remote terminal, the relay terminal can based on Pre-SL-BSR.
  • -SL-BSR configuration information determine whether the transmission resource request information is carried in Pre-SL-BSR or carried in a dedicated SR for transmission.
  • the above-mentioned S43b can be specifically performed by the following B1:
  • the relay terminal sends transmission resource request information to the network device through the SL-BSR according to the data packet transmission instruction information.
  • the relay terminal can request resources from the network device through the SL-BSR.
  • the priority indicated by the data packet priority information carried by the data packet transmission indication information is higher than the priority requested by the relay terminal through SL-BSR belongs to the logical channel priority within the logical channel group corresponding to the first target address.
  • the relay terminal reads the data packet transmission instruction information sent by the source remote terminal for a certain target address, and the priority indicated by the data packet priority information carried in the data packet transmission instruction information is higher than that of the relay terminal. If the logical channel priority previously requested through SL-BSR belongs to the logical channel group corresponding to the target address, the relay terminal can request resources from the network device through SL-BSR.
  • the relay terminal in the above-mentioned B1, has not sent an SL-BSR to the network device for the first target address.
  • the relay terminal can Request resources from network devices through SL-BSR.
  • the above-mentioned S43c can be specifically executed through the following C1:
  • the relay terminal sends transmission resource request information to the network device through the SR according to the SR resources and data packet transmission instruction information configured in the target SR configuration.
  • the relay terminal when the relay terminal receives the data packet transmission instruction information sent by the source remote terminal, if the network device configures the SR configuration for the relay terminal, the relay terminal can send the sidelink through the SR resources under the corresponding SR configuration. Road resources are requested in advance.
  • the target SR is configured as a network device configured for the relay terminal after the relay terminal establishes a target connection with the source remote terminal.
  • the target connection may be a PC5-RRC connection.
  • the relay terminal can report information related to the PC5-RRC connection to the network device through the sidelink terminal auxiliary information.
  • the configuration granularity of the target SR configuration is any one of the following:
  • a source remote terminal that establishes a target connection, corresponding to the target SR configuration.
  • the network device can configure an SR configuration for each source remote terminal device.
  • the network device can configure the same SR configuration for multiple source remote terminals that have established target connections.
  • the network device can configure the corresponding SR configuration for a source remote terminal according to the service priority. It can configure one SR configuration for each service priority, or configure one SR configuration for multiple service priorities.
  • an SR configuration may include at least one of the following configuration information:
  • the relay terminal may transmit the SR carrying the transmission resource request information on one or more SR resources configured in the SR configuration.
  • the above-mentioned S43c can be specifically executed by the following C2:
  • the relay terminal If the Pre-SL-BSR of a window track is triggered, the third timer is not running, and there are no available uplink resources or insufficient available uplink resources, the relay terminal sends transmission resource request information to the network device through the SR.
  • Insufficient uplink resources indicate that the uplink resources are insufficient to carry Pre-SL-BSR and the MAC subheader of Pre-SL-BSR.
  • the Pre-SL-BSR of a window track has been triggered and the sl-logicalChannelSR-DelayTimer is not running, if there are no available uplink resources at this time, or the available uplink resources are not enough to carry the Pre-SL-
  • the MAC subheader of BSR and Pre-SL-BSR triggers an SR request according to the dedicated SR configuration to request transmission resources.
  • the The relay terminal can transmit the transmission resource request information on the SR according to the SR configuration configured in the Pre-SL-BSR configuration information.
  • the above-mentioned S43e can be specifically executed by the following E1:
  • the relay terminal If the relay terminal obtains the data packet transmission instruction information sent by the source remote terminal, and the relay terminal has not reported the target BSR for the first target address, the relay terminal sends a message to the network device through Pre-SL-BSR. Transmit resource request information.
  • the target BSR is SL-BSR or Pre-SL-BSR.
  • the relay terminal reads the data packet transmission instruction information sent by the source remote terminal, and the relay terminal has not previously reported SL-BSR or Pre- SL-BSR, it can trigger the relay terminal to report Pre-SL-BSR to request transmission resources from the network device in advance.
  • the above-mentioned S43e can be specifically executed by the following E2:
  • the relay terminal If the priority of the logical channel indicated by the data packet transmission indication information is higher than the priority carried by the target BSR previously reported by the relay terminal for the first target address, the relay terminal sends the message to the network device through Pre-SL-BSR. Transmit resource request information.
  • the relay terminal determines that the priority carried in the data packet transmission indication information sent by the source remote terminal is higher than the SL-BSR or Pre-SL previously reported for the first target address carried/corresponding to the data packet transmission indication information. -When the priority carried in the BSR can trigger the relay terminal to report Pre-SL-BSR to request transmission resources from the network device in advance.
  • the above-mentioned S43e can be specifically executed by the following E3:
  • the relay terminal If the logical channel priority ordering of the target uplink resources is valid and the target uplink resources are sufficient, the relay terminal generates the MAC CE of Pre-SL-BSR, starts the first timer, and sends signals to the network device through Pre-SL-BSR. Send transmission resource request information.
  • the target uplink resource is sufficient indicating that the target uplink resource can carry Pre-SL-BSR and the MAC subheader carrying Pre-SL-BSR.
  • Insufficient target uplink resources indicate that the target uplink resources are insufficient to carry Pre-SL-BSR and the MAC subheader of Pre-SL-BSR.
  • the relay terminal can be instructed
  • the MAC layer performs the multiplexing assembly process to generate the MAC CE of Pre-SL-BSR, then starts the sl-periodicPreBSR-Timer, and then reports the Pre-SL-BSR pre-request transmission resources to the network device.
  • the relay terminal can generate the MAC CE for transmitting the Pre-SL-BSR, and then start the first timer configured in the configuration information of the Pre-SL-BSR to report the Pre-SL-BSR.
  • the relay terminal sends a configuration authorization usage request message to the network device.
  • the configuration authorization use request message is used to request the use of the configured configuration authorization of the network device.
  • the configuration authorization use request message includes at least one of the following:
  • the network device receives the transmission resource request information sent by the relay terminal.
  • the transmission resource request information is triggered by the relay terminal according to the data packet transmission instruction information sent by the source remote terminal.
  • the transmission resource request information is used by the relay terminal to request the network device to transmit the source remote terminal to the destination remote terminal. Transmission resources for transmitted business data.
  • the transmission resource request method provided by the embodiment of the present disclosure may also include the following S406 before the above-mentioned S405:
  • the network device configures the target SR configuration information for the relay terminal.
  • the transmission resource request information is received based on SR.
  • the network device can configure target SR configuration information for the relay terminal, so that when the relay terminal requests resources for sending relay data to the network device, it can send SR request resources based on the target SR configuration information.
  • the transmission resource request method provided by the embodiment of the present disclosure may also include the following S407 before the above-mentioned S405:
  • the network device configures the SL MAC CE configuration information for the source remote terminal.
  • the network device can configure the configuration information of SL MAC CE for the source remote terminal after receiving the sidelink terminal auxiliary information sent by the source remote terminal, so that the source remote terminal can configure the configuration information based on SL MAC CE.
  • the configuration information sends packet transmission instruction information to the relay terminal through SL MAC CE.
  • the execution subject may also be a transmission resource requesting device, or a control module in the transmission resource requesting device for executing the transmission resource requesting method.
  • the method of performing the transmission resource request by the transmission resource requesting device is taken as an example to illustrate the device for transmitting resource request provided by the embodiment of the present disclosure.
  • Figure 5 is a schematic structural diagram of a terminal device provided by an embodiment of the present disclosure.
  • the terminal device 500 includes: a receiving module 501 and a sending module 502; the receiving module 501 is used to receive the data sent by the source remote terminal. Data packet transmission instruction information; the sending module 502 is used to send transmission resource request information to the network device according to the data packet transmission instruction information received by the receiving module 501; wherein the transmission resource request information is used for the relay terminal to request transmission from the network device Transmission resources for service data transmitted from the source remote terminal to the destination remote terminal.
  • the data packet transmission instruction information instructs the relay terminal to request from the network device transmission resources for transmitting service data transmitted by the source remote terminal to the destination remote terminal before receiving the data packet from the source remote terminal.
  • the transmission method of the data packet transmission indication information includes any of the following: SL MAC CE; PC5-RRC signaling; SCI.
  • the transmission time of the data packet transmission indication information includes any of the following: the first time when the source remote terminal periodically transmits the initial data packet of the service data for the first time; the second time before the first time, The first time and the second time are separated by a preset time period; the third time is when the data cache is generated in the logical channel corresponding to the MAC entity of the source remote terminal.
  • the data packet transmission indication information includes at least one of the following: the first destination address corresponding to the data packet; the highest priority of multiple logical channels corresponding to the concatenated data in the data packet; The highest delay of multiple logical channels; the lowest delay of multiple logical channels corresponding to the concatenated data in the data packet; the size of the data packet; the transmission period of the data packet; the number of retransmissions of the data packet; and the HARQ attributes of the data packet.
  • the configuration information of the SL MAC CE includes at least one of the following: the priority of the SL MAC CE; whether to enable HARQ feedback; whether to use discovery messages Dedicated send resource pool; whether to use configured grant type1 or configured grant type2.
  • the configuration information is predefined parameters.
  • the sending module is specifically configured to: send transmission resource request information to the network device when the relay terminal is in a preset mode.
  • the sending module is specifically configured to: send transmission resource request information to the network device through SL-BSR; or send transmission resource request information to the network device through SR; or send transmission resource request information to the network device through UL MAC CE. Resource request information; or, send transmission resource request information to the network device through the SL-BSR that requests resources in advance.
  • the sending module is specifically configured to: if the data packet transmission instruction information is transmission instruction information for the first target address, send transmission resource request information to the network device through the SL-BSR.
  • the priority indicated by the data packet priority information carried in the data packet transmission indication information is higher than the priority of the logical channel belonging to the logical channel group corresponding to the first target address that the relay terminal previously passed through the SL-BSR.
  • the relay terminal has not sent an SL-BSR to the network device for the first target address.
  • the sending module is specifically configured to: send transmission resource request information to the network device through the SR according to the SR resources configured in the target SR configuration.
  • the target SR is configured as a network device configured for the relay terminal after the relay terminal establishes a target connection with the source remote terminal.
  • the configuration granularity of the target SR configuration is any one of the following: one source remote terminal that establishes the target connection, corresponding to the target SR configuration; at least two source remote terminals that establish the target connection, corresponding to the target SR configuration; one established At least one service priority corresponding to the source remote terminal of the target connection, corresponding to the target SR configuration.
  • the SL-BSR for pre-requesting resources includes at least one of the following: target address information, priority information, data packet cache size indication information, data packet transmission cycle indication information, and data packet delay indication information.
  • the target address information corresponds to the first target address indicated by the data packet transmission instruction information, and the target address information indicates the second target address; or the target address information indicates the first target address indicated by the data packet transmission instruction information.
  • the sending module is specifically configured to: if the data packet transmission instruction information sent by the source remote terminal is obtained, and the relay terminal has not reported a target cache status report for the first target address, pre-request the SL- BSR sends transmission resource request information to the network device; where the target cache status report is SL-BSR or SL-BSR that requests resources in advance.
  • the sending module is specifically configured to: if the priority of the logical channel indicated by the data packet transmission indication information is higher than the priority carried in the target cache status report previously reported by the relay terminal for the first target address, through the pre-request
  • the sidelink cache status report of the resource sends transmission resource request information to the network device; where the target cache status report is the SL-BSR or the SL-BSR of the pre-requested resource.
  • the configuration information of the SL-BSR that requests the resource in advance includes at least one of the following: a dedicated SR configuration; a dedicated first timer, where the first timer is a periodic timer of the SL-BSR that requests the resource in advance. ; Dedicated second timer, the second timer is the timer for retransmission of the SL-BSR that requests resources in advance; Dedicated third timer, the third timer is the delay of the SR of the logical channel of the sidelink timer.
  • the sending module is specifically configured to: if the logical channel priority sorting of the target uplink resources is valid and the target uplink resources are sufficient, generate the MAC CE of the SL-BSR that pre-requests the resources, start the first timer, and pass the pre-request
  • the SL-BSR of the resource sends transmission resource request information to the network device; where the target uplink resource is sufficient, indicating that the target uplink resource can carry the SL-BSR of the pre-requested resource and the MAC subheader of the SL-BSR of the pre-requested resource.
  • the sending module is specifically configured to: if the SL-BSR for pre-requesting resources of a window track is triggered, the third timer is not running, and there are no available uplink resources or insufficient available uplink resources, send the SL-BSR to the network device through the SR Send transmission resource request information; wherein, insufficient available uplink resources indicates that the available uplink resources are insufficient to carry the SL-BSR of the pre-requested resources and the MAC subheader of the SL-BSR of the pre-requested resources.
  • the sending module is also configured to: after the receiving module receives the data packet transmission indication information sent by the source remote terminal, send a configuration authorization use request message to the network device; wherein the configuration authorization use request message is used to request the use of the network device. Configured configuration authorization.
  • the configuration authorization usage request message includes at least one of the following: the first destination address corresponding to the data packet; the highest priority in the data packet; the configuration authorization type expected to be used by the data packet; and the configuration authorization index expected to be used by the data packet.
  • the terminal device 500 provided by the embodiment of the present disclosure can implement each process implemented by the relay terminal in the method embodiment of Figures 1 to 4B, and can achieve the same technical effect. To avoid duplication, the details will not be described here.
  • FIG. 6 shows a terminal device provided by an embodiment of the present disclosure.
  • the terminal device can be used as a source remote terminal.
  • the terminal device 600 includes: a sending module 601; a sending module 601 for sending data packet transmission instruction information to the relay terminal. ; Among them, the data packet transmission instruction information instructs the relay terminal to request the network device for transmission resources of the service data transmitted by the source remote terminal to the destination remote terminal.
  • the data packet transmission instruction information instructs the relay terminal to request from the network device transmission resources for transmitting service data transmitted by the source remote terminal to the destination remote terminal before receiving the data packet sent by the source remote terminal.
  • the sending time of the data packet transmission indication information is any one of the following: the first time when the source remote terminal periodically transmits the initial data packet of the service data for the first time; the second time before the first time, The first time and the second time are separated by a preset time period; the third time is when the data cache is generated in the logical channel corresponding to the MAC entity of the source remote terminal.
  • the transmission method of the data packet transmission indication information includes any of the following: SL MAC CE; PC5-RRC signaling; SCI.
  • the data packet transmission indication information includes at least one of the following: the first destination address corresponding to the data packet; the highest priority of multiple logical channels corresponding to the concatenated data in the data packet; The highest delay of multiple logical channels; the lowest delay of multiple logical channels corresponding to the concatenated data in the data packet; the size of the data packet; the transmission period of the data packet; the number of retransmissions of the data packet; and the HARQ attributes of the data packet.
  • the configuration information of the SL MAC CE includes at least one of the following: the priority of the SL MAC CE; whether to enable HARQ feedback; whether to use discovery messages Dedicated sending resource pool; whether to use configuration authorization type 1 or configuration authorization type 2.
  • the configuration information is predefined parameters.
  • the terminal device 600 provided by the embodiment of the present disclosure can implement various processes implemented by the remote terminal in the method embodiments in Figures 1 to 4B, and can achieve the same technical effect. To avoid duplication, details will not be described here.
  • FIG. 7 is a schematic structural diagram of a network device provided by an embodiment of the present disclosure.
  • the network device 700 includes: a receiving module 701; the receiving module 701 is used to receive transmission resource request information sent by a relay terminal. ; Among them, the transmission resource request information is triggered by the relay terminal according to the data packet transmission instruction information sent by the source remote terminal. The transmission resource request information is used by the relay terminal to request the network device to transmit the source remote terminal to the destination remote terminal. Transmission resources for service data transmitted by the terminal.
  • the data packet transmission instruction information instructs the relay terminal to request from the network device transmission resources for transmitting service data transmitted by the source remote terminal to the destination remote terminal before receiving the data packet sent by the source remote terminal.
  • the network device 700 also includes: a configuration module 702; a configuration module 702, configured to establish a target connection between the relay terminal and the source remote terminal before receiving the transmission resource request information sent by the relay terminal, and receive the transmission resource request information from the source terminal.
  • a configuration module 702 configured to establish a target connection between the relay terminal and the source remote terminal before receiving the transmission resource request information sent by the relay terminal, and receive the transmission resource request information from the source terminal.
  • the target SR configuration information is configured for the relay terminal; the transmission resource request information is received based on the SR.
  • the configuration granularity of the target SR configuration is any one of the following: one source remote terminal that establishes the target connection, corresponding to the target SR configuration; at least two source remote terminals that establish the target connection, corresponding to the target SR configuration; one established At least one service priority corresponding to the source remote terminal of the target connection, corresponding to the target SR configuration.
  • the configuration module is also configured to establish a target connection between the relay terminal and the source remote terminal before the receiving module receives the transmission resource request information sent by the relay terminal, and receives the side link sent by the source remote terminal. After receiving the terminal auxiliary information, configure the SL MAC CE configuration information for the source remote terminal.
  • the network device 700 provided by the embodiment of the present disclosure can implement each process implemented by the network device in the method embodiment of FIG. 1 to FIG. 4B, and can achieve the same technical effect. To avoid duplication, the details will not be described here.
  • this embodiment of the present disclosure also provides a terminal device 800, including a processor 801, a memory 802, and a program or instructions stored on the memory 802 and executable on the processor 801.
  • the program Or when the instruction is executed by the processor 801, each process executed by the source remote terminal or the relay terminal in the above embodiment of the transmission resource request method is realized, and the same technical effect can be achieved. To avoid duplication, the details will not be described here.
  • this embodiment of the present disclosure also provides a network device 900, including a processor 901, a memory 902, and a program or instructions stored on the memory 902 and executable on the processor 901.
  • the program Or when the instruction is executed by the processor 901, the network device that implements the above embodiment of the transmission resource request method executes each process and can achieve the same technical effect. To avoid duplication, it will not be described again here.
  • the device 1000 shown in Figure 10 is only an example.
  • the device 1000 may be the terminal device in the above embodiment or the network device in the above embodiment. It shall not be used for the functions and uses of the embodiments of the present disclosure. scope imposes no limitations.
  • the device 1000 includes a central processing unit (Central Processing Unit, CPU) 1001, which can be loaded into a RAM (Random) according to a program stored in a ROM (Read Only Memory) 1002 or from a storage part 1008. Access Memory (random access memory) 1003 to perform various appropriate actions and processes. In RAM 1003, various programs and data required for system operation are also stored.
  • CPU 1001, ROM 1002 and RAM 1003 are connected to each other through bus 1004.
  • I/O (Input/Output, input/output) interface 1005 is also connected to bus 1004.
  • the following components are connected to the I/O interface 1005: an input section 1006 including a keyboard, a mouse, etc.; an output section 1007 including a CRT (Cathode Ray Tube, cathode ray tube), LCD (Liquid Crystal Display), etc., and speakers, etc. ; a storage part 1008 including a hard disk, etc.; and a communication part 1009 including a network interface card such as a LAN (Local Area Network, wireless network) card, a modem, etc.
  • the communication section 1009 performs communication processing via a network such as the Internet.
  • Driver 710 is also connected to I/O interface 1005 as needed.
  • Removable media 1011 such as magnetic disks, optical disks, magneto-optical disks, semiconductor memories, etc., are installed on the drive 1010 as needed, so that a computer program read therefrom is installed into the storage portion 1008 as needed.
  • embodiments of the present disclosure include a computer program product including a computer program carried on a computer-readable medium, the computer program containing program code for performing the method illustrated in the flowchart.
  • the computer program may be downloaded and installed from the network via communication portion 1009 and/or installed from removable media 1011.
  • CPU 1001 central processing unit
  • Embodiments of the present disclosure also provide a readable storage medium.
  • Programs or instructions are stored on the readable storage medium.
  • the program or instructions are executed by a processor, each process of the above transmission resource request method embodiment is implemented, and can achieve The same technical effects are not repeated here to avoid repetition.
  • the processor is the processor in the electronic device described in the above embodiment.
  • the readable storage media includes computer-readable storage media, such as ROM, RAM, magnetic disks or optical disks.
  • An embodiment of the present disclosure further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the above embodiment of the transmission resource request method. Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.
  • the chip mentioned in the embodiments of the present disclosure may also be called a system-on-chip, a system-on-a-chip, a system-on-a-chip or a system-on-chip, etc.
  • Embodiments of the present disclosure provide a computer program product containing instructions that, when run on a computer, cause the computer to perform the steps of the transmission resource request method as described above, and can achieve the same technical effect. To avoid duplication, these are not included here. Again.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present disclosure can be embodied in the form of a software product in essence or that contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk, CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of the present disclosure.

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Abstract

本公开提供了一种传输资源请求方法及设备。该方法包括：接收源远端终端发送的数据包传输指示信息；根据数据包传输指示信息，向网络设备发送传输资源请求信息；其中，传输资源请求信息用于中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。基于本公开实施例提供的传输资源请求方法，可以解决中继数据的转发时延比较大的问题。

Description

传输资源请求方法及设备 技术领域
本公开属于通信技术领域，具体涉及一种传输资源请求方法及设备。
背景技术
随着通信技术的发展，为了方便数据的传输，越来越多的传输架构被应用于通信网络中。例如，D2D(Device-to-Device Communication，设备到设备的通信)和V2X(Vehicle to Everything，车联网)，D2D和V2X是基于SL(Sidelink，侧行链路)传输的通信架构。
目前，3GPP(3rd Generation Partnership Project，第三代合作伙伴计划)针对侧行链路的传输定义了两种资源分配模式，分别为模式1和模式2。其中，模式1中，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发送数据；其中，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。在模式2中，车载终端在资源池中选取资源进行数据的传输。
在Rel-18(版本18)的Sidelink Relay(侧行链路中继)项目中，开始研究终端到终端的中继，中继终端需要持续将源远端终端的数据包转发给目标远端终端。目前尚未讨论中继资源的分配方式，而按照目前已有的资源分配方式，在中继数据到达中继终端之后，中继终端才会向网络设备请求资源，在网络设备根据中继终端的请求分配资源后，中继终端再在分配的资源上转发中继数据，从而导致中继数据的转发时延比较大。
发明内容
本公开实施例的目的是提供一种传输资源请求方法及设备，能够解决中继数据的转发时延比较大的问题。
为了解决上述技术问题，本公开是这样实现的：
第一方面，本公开实施例提供了一种传输资源请求方法，应用于中继终端，该方法包括：接收源远端终端发送的数据包传输指示信息；根据数据包传输指示信息，向网络设备发送传输资源请求信息；其中，传输资源请求信息用于中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
第二方面，本公开实施例提供了一种终端设备，该终端设备为中继终端，中继终端包括：接收模块和发送模块；接收模块，用于接收源远端终端发送的数据包传输指示信息；发送模块，用于根据接收模块接收的数据包传输指示信息，向网络设备发送传输资源请求信息；其中，传输资源请求信息用于中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
第三方面，本公开实施例提供了一种传输资源请求方法，应用于源远端终端，该方法包括：向中继终端发送数据包传输指示信息；其中，数据包传输指示信息指示中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
第四方面，本公开实施例提供了一种终端设备，该终端设备为源远端终端，源远端终端包括：发送模块；发送模块，用于向中继终端发送数据包传输指示信息；其中，数据包传输指示信息指示中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
第五方面，本公开实施例提供了一种传输资源请求方法，应用于网络设备，该方法包括：接收中继终端发送的传输资源请求信息；其中，传输资源请求信息为中继终端根据源远端终端发送的数据包传输指示信息触发发送的，传输资源请求信息用于中继终端，向网络设备请 求传输源远端终端向目的远端终端传输的业务数据的传输资源。
第六方面，本公开实施例提供了一种网络设备，该网络设备包括：接收模块；接收模块，用于接收中继终端发送的传输资源请求信息；其中，传输资源请求信息为中继终端根据源远端终端发送的数据传输指示信息触发发送的，传输资源请求信息用于中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
第七方面，本公开实施例提供了一种终端设备，该终端设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面或第三方面所述的传输资源请求方法的步骤。
第八方面，本公开实施例提供了一种网络设备，该网络设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第五方面所述的传输资源请求方法的步骤。
第九方面，本公开实施例提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面、第三方面或第五方面所述的传输资源请求方法的步骤。
第十方面，本公开实施例提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面、第三方面或第五方面所述的传输资源请求方法。
第十一方面，本公开实施例提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如第一方面、第三方面或第五方面所述的传输资源请求方法的步骤。
在本公开实施例中，中继终端接收到源远端终端发送的数据包传输指示信息，然后根据数据包传输指示信息，可以向网络设备发送传输资源请求信息，即可以使得中继终端在接收到源远端终端的数据包之前，可以向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源，即可以提前上报资源请求，从而使得中继数据在到达中继终端之后可以立即进行转发，可以节省资源请求占用的时间，从而减少了中继数据的转发时延。
附图说明
图1为相关技术中的资源分配模式的示意图；
图2为相关技术中一种中继终端所考虑的覆盖范围的示意图；
图3为本公开实施例提供的一种终端到终端的中继的通信架构示意图；
图4A为本公开实施例提供的传输资源请求方法的流程示意图之一；
图4B为本公开实施例提供的传输资源请求方法的流程示意图之二；
图5为本公开实施例提供的终端设备可能的结构示意图之一；
图6为本公开实施例提供的终端设备可能的结构示意图之二；
图7为本公开实施例提供的网络设备可能的结构示意图之一；
图8为本公开实施例提供的终端设备可能的结构示意图之三；
图9为本公开实施例提供的网络设备可能的结构示意图之二；
图10为本公开实施例提供的一种设备的硬件示意图。
具体实施方式
为了便于理解，首先对本公开实施例中涉及的相关术语进行解释：
1、LTE D2D/LTE V2X
设备到设备的通信是一种基于侧行链路传输技术的通信方式。
在LTE V2X场景下定义了两种资源分配模式，分别为：模式A和模式B。
模式A：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发送数据。其中，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。
模式B：车载终端在资源池中选取资源进行数据的传输。
示例性地，图1为相关技术中的资源分配模式的示意图。图1中的(a)所示的是模式A的资源分配方式，其中，车载终端102和车载终端103之间通过侧行链路连接，网络设备101可以为车载终端通过下行链路配置资源。图1中的(b)所示的是模式B的资源分配方式，其中车载终端102和车载终端103之间通过侧行链路连接，车载终端在资源池中选取资源，网络设备101无需为车载终端设备配置资源。
在3GPP中，D2D的研究主要分为四个阶段进行研究，依次为：ProSe(Proximity based Service，近距离服务)、V2X、FeD2D(Further Enhancements to LTE Device to Device，进一步增强LTE，设备到设备)和多载波四个阶段的研究。
(1)ProSe阶段
在Rel-12/13中，设备到设备的通信主要针对ProSe进行了研究，主要是面向公共安全类的业务。
在ProSe阶段中，可以通过配置资源池在时域上的位置(例如资源池在时域上是非连续的)，以达到UE在侧行链路上非连续传输(发送/接收)数据，从而达到省电的效果。
(2)V2X阶段
在Rel-14/15中，针对车联网系统中的车车通信的场景进行了研究，主要面向相对高速移动的车车、车人通信的业务。
由于车载系统具有持续的供电，因此功率不是主要问题，数据传输的时延是主要解决的问题，在系统设计上要求中的设备进行连续的发送和传输。
与传统的蜂窝系统中通信数据通过基站传输的方式不同，车联网系统采用终端到终端直接通信的方式，具有更高的频谱效率和更低的传输时延。
(3)FeD2D阶段
在Rel-14中，针对可穿戴设备通过手机接入网络进行了研究，主要面向低移动速度和低功率接入的场景。
在FeD2D阶段中，预研阶段3GPP的结论为：基站可以通过一个relay(中继)终端配置remote(远端)终端的DRX(Discontinuous Reception，非连续接收)参数。然而，该课题并未进一步进入标准化阶段，如何进行DRX配置的具体细节没有结论。
(4)多载波阶段
在Rel-15中LTE V2X的研究中，引入多载波机制。
其中，在多载波机制下，UE可以支持数据包的分割，使用多个载波传输数据包，以提升数据传输率；UE可支持数据包的复制，将一个数据包复制为相同的两份，采用两个载波发送，以提升传输可靠性。在接收端，可以支持多载波接收增强。
具体地，针对数据包的复制：V2X侧链路通信支持侧链分组复制，可在UE的PDCP(Packet Data Convergence Protocol，分组数据汇聚协议)层执行。对于用于传输的侧链路分组复制，PDCP PDU(packet data unit，分组数据单元)在PDCP实体处被复制。同一PDCP实体复制的PDCP PDU可以被提交给两个不同的RLC(Radio Link Control，无线链路控制层协议)实体，并分别关联到两个不同的侧链路逻辑信道。同一PDCP实体复制的PDCP PDU只允许在不同的侧链载波上传输。UE可以基于(预)配置来激活或停用侧链分组复制。侧链数据包复制不适用于具有Rel-14传输配置文件(TS 23.285[72])的传输。
支持侧链数据包复制的PPPR(ProSe Per-Packet Reliability，数据包可靠性)值可以通过PPPR阈值(预)配置。
对于UE自主的资源选择和调度的资源分配，UE应对具有配置的PPPR值的数据执行侧链路分组复制，知道为这些PPPR值取消分组复制配置为止。
对于调度的资源分配，UE通过侧链BSR(Buffer Status Report，链路缓存状态报告)，报告与一个或多个PPPR值相关联的数据量以及数据所属的目的地址。其中，PPPR值到逻辑信 道组的映射可以由eNB(Evolved Node B，演进型Node B)配置，并且PPPR值由包括在侧链BSR中相关联的逻辑信道组ID反应。一个或多个PPPR值的列表可以由一个RRC(Radio Resource Control，无线资源控制)连接的UE在侧链UE信息中报告。
2、NR V2X
在LTE V2X的基础上，NR V2X不局限于广播场景，进一步扩展到单播和组播的场景，在这些场景下研究V2X的应用。
NR V2X也定义了D2D/V2X的两种资源分配模式，分别为模式1和模式2。
模式1：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发送数据。其中，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。
模式2：车载终端在资源池中选取资源进行数据的传输。
更进一步，用户可能处在一个混合的模式下，即，既可以使用模式1进行资源的获取，又同时可以使用模式2进行资源的获取。其中，该资源的获取可以通过侧行链路授权的方式指示，即侧行链路授权指示相应的PSCCH(Physical sidelink control CHannel，物理侧边链路控制信道)与PSSCH(Physical sidelink shared CHannel，物理侧边链路共享信道)资源的时频位置。
不同于LTE V2X，除了无反馈的、UE自主发起的HARQ重传，NR V2X引入了基于反馈的HARQ(Hybrid Automatic Repeat reQuest，混合自动重传请求)重传，不限于单播通信，也包括组播通信。
与LTE V2X相同，在NR V2X中，由于车载系统具有持续的供电，因此功率效率不是主要问题，而数据传输的时延是主要问题，因此在系统设计上要求终端设备进行连续的发送和接收。
3、终端到终端的中继
UE到UE中继支持两个侧链终端之间的侧链传输覆盖扩展并节省电。考虑的覆盖方案如下：
1)所有UE(源UE、中继UE、目标UE)都在覆盖范围内。
2)所有UE(源UE、中继UE、目标UE)均超出覆盖范围。
3)部分覆盖，其中中继的至少一个终端(源终端、中继终端、目的终端)在覆盖范围，中继的至少一个终端超出覆盖范围。
RAN2将努力寻求对覆盖内和覆盖外场景的共同解决方案。对于UE到UE中继，支持UE可以覆盖不同单元的场景。图2中为一种中继终端所考虑的覆盖范围的示意图，其中，UE 200为中继UE，UE 201和UE 202分别可以为源/目标UE。在图2中，覆盖范围意味着源/目标UE和/或UE到UE中继UE都在覆盖范围内，并且可以访问Uu上的网络。其中，Uu为空中接口，通过基站接入网络。
NR的侧行链路可以被假设在PC5上的远端终端和中继终端之间。不考虑源UE、UE-UE中继和目标UE的交叉RAT(Radio Access Technology，无线接入技术)配置/控制，即eNB/ng-eNB不控制/配置NR(New Radio，新空口)的源UE、目标UE或UE-UE中继UE。对于终端到终端的中继，目前考虑源终端和目标终端之间的单播数据通信。通过SN(Serial Number，序列号)配置/调度UE(源UE、目标UE或UE到UE中继UE)以执行NR侧行链路通信目前尚未研究。对于UE到UE的中继，假定远端UE在给定的时间内仅通过单个中继UE具有激活的端到端连接。一旦在源UE、UE到UE中继和目标UE之间建立了PC5链路，数据的中继就可以发生在源UE和目标UE之间。对终端中继中涉及的任何终端的RRC状态没有限制。对服务连续性的要求仅适用于终端到网络的中继，而不是终端到终端的中继。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属 于本公开保护的范围。
本公开的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本公开的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
值得指出的是，本公开实施例所描述的技术不限于LTE(Long Term Evolution，长期演进型)/LTE-A(LTE-Advanced，LTE的演进)系统，还可用于其他无线通信系统，诸如CDMA(Code Division Multiple Access，码分多址)、TDMA(Time Division Multiple Access，时分多址)、FDMA(Frequency Division Multiple Access，频分多址)、OFDMA(Orthogonal Frequency Division Multiple Access，正交频分多址)、SC-FDMA(Single-carrier Frequency-Division Multiple Access，单载波频分多址)和其他系统。本公开实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。然而，以下描述出于示例目的描述了NR系统，并且在以下大部分描述中使用NR术语，尽管这些技术也可应用于NR系统应用以外的应用，如6G(6th Generation，第6代)通信系统。
下面结合附图，通过具体的实施例及其应用场景对本公开实施例提供的传输资源请求方法进行详细地说明。
图3为本公开实施例提供的一种终端到终端的中继的通信架构示意图。如图3中所示，该通信架构包括：源远端终端300、中继终端301、目的远端终端302和网络设备303。其中，中继终端301将源远端终端300的业务数据转发给目的远端终端302，中继终端301通过网络设备303接入网络。
应理解的是，本公开实施例中的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、无线通信设备、终端、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、个人数字处理(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、可穿戴设备以及下一代通信系统，例如，NR网络中的终端或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端等。
作为示例而非限定，在本公开实施例中，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。
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(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网络中的网络设备等。
应理解的是，本公开实施例不仅适用于D2D、V2V、V2X等通信框架，还可以适用于其他任何终端到终端的通信框架，本公开对此不作限制。
图4A为本公开实施例提供的一种传输资源请求方法的流程示意图，如图4A中所示，该方法包括下述的S401至S403：
S401、源远端终端向中继终端发送数据包传输指示信息。
其中，数据包传输指示信息可以指示中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
S402、中继终端接收源远端终端发送的数据包传输指示信息。
S403、中继终端根据数据包传输指示信息，向网络设备发送传输资源请求信息。
其中，传输资源请求信息用于中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
可选地，结合图4B，在本公开实施例中，在上述的S403之后，还可以包括下述的S500至S502：
S500、网络设备为中继终端分配资源。
S501、源远端终端向中继终端发送数据包。
其中，该数据包为源远端终端向目的远端发送的业务数据的数据包。
S502、中继终端向目的远端终端转发数据包。
具体地，中继终端在接收到源远端终端发送的数据包之后，在网络设备分配的资源上向源远端终端转发数据包。
本公开实施例提供一种传输资源请求方法，中继终端接收到源远端终端发送的数据包传输指示信息，然后根据数据包传输指示信息，可以向网络设备发送传输资源请求信息，即可以使得中继终端在接收到源远端终端的数据包之前(例如，数据到达中继终端自身的MAC实体之前)，可以向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源，即可以提前上报资源请求，从而使得中继数据在到达中继终端之后可以立即进行转发，可以节省资源请求占用的时间，从而减少了中继数据的转发时延。
可选地，数据包传输指示信息可以指示中继终端在接收到源远端终端的数据包之前，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
可以理解，源远端终端可以在向中继终端发送数据包之前，可以先向中继终端发送数据包传输指示信息，指示中继终端预先为中继数据请求传输资源。
可选地，本公开实施例提供的传输资源请求方法中，数据包传输指示信息的传输时刻包括以下1-1至1-3中任意一项：
1-1：源远端终端第一次周期性传输业务数据的初传数据包的第一时刻；
1-2：在第一时刻之前的第二时刻，第一时刻和第二时刻间隔预设时长；
1-3：源远端终端的MAC(Medium Access Control，媒体访问控制)实体对应的逻辑信道内产生数据缓存的第三时刻。
示例性地，假设源远端终端、中继终端、目的远端建立通信连接之后，源远端终端第一次周期性传输业务数据的初传数据包的发送时刻为T1，源远端终端可以在T1时刻发送数据包传输指示信息，可以在T2时刻发送数据包传输指示信息，T2时刻早于T1时刻，T2时刻和T1时刻间隔时长1，例如在T1时刻之前3ms的T2时刻发送数据包传输指示信息。
可选地，本公开实施例提供的传输资源请求方法中，数据包传输指示信息，包括以下至少一项：
2-1：数据包对应的第一目标地址；
2-2：数据包内级联数据对应的多个逻辑信道的最高优先级。
示例性地，假设数据包内级联数据对应逻辑信道1、逻辑信道2和逻辑信道3，其中，逻辑信道1的优先级为1、逻辑信道2的优先级为2、逻辑信道3的优先级为3，则数据包传输指示信息中可以携带逻辑信道3的优先级。
2-3：数据包内级联数据对应的多个逻辑信道的最高时延；
2-4：数据包内级联数据对应的多个逻辑信道的最低时延；
示例性地，假设逻辑信道1的时延为时延1、逻辑信道2的时延为时延2、逻辑信道3的时延为时延3、逻辑信道4的时延为时延4，其中，时延1<时延2<时延3<时延4，则数据包传输指示信息中可以携带时延1(即最低时延)和时延4(即最高时延)中的至少一项。
2-5：数据包的尺寸；
2-6：数据包的重传次数；
2-7：数据包的HARQ属性。其中，HARQ属性指示是否使能HARQ反馈。
可选地，在本公开实施例中，数据包传输指示信息还可以包括其他数据包传输相关的指示信息，此处不再赘述。
可选地，本公开实施例提供的传输资源请求方法中，数据包传输指示信息可以通过以下任意一种方式传输：
3-1：SL MAC CE(侧行链路媒体接入层控制单元)；
3-2：PC5-RRC信令(PC5接口上的RRC(Radio Resource Control，无线资源控制)信令)；
其中，通过PC5接口接入网络的方式是可以不通过基站接入网络的。
3-3：SCI(Serial Communication Interface、串行通信接口)。
可以理解，源远端终端可以通过SL MAC CE、PC5-RRC信令或SCI向中继终端发送数据包传输指示信息。
需要说明的是，在本公开实施例中，数据包传输指示信息还可以通过其他方式传输，本公开实施例对此不作具体限定。
可选地，本公开实施例提供的传输资源请求方法中，在数据包传输指示信息承载在SL MAC CE上传输的情况下，SL MAC CE的配置信息包括以下至少一项：
4-1：SL MAC CE的优先级；
4-2：是否使能HARQ反馈；
4-3：是否使用发现消息专用发送资源池；
4-4：是否使用configured grant type1/2(配置授权类型1或配置授权类型2)。
通常，configured grant type1：由RRC通过高层信令进行配置(IE ConfiguredGrantConfig)；configured grant type 2：由DCI进行指示上行免授权的激活和去激活，其需要的参数由IE ConfiguredGrantConfig进行配置，但是需要由DCI激活时才进行使用。
可以理解，若网络设备为源远端终端配置了SL MAC CE的配置信息，则在源远端终端向中继终端发送数据包传输指示信息的情况下，源远端终端可以将数据包传输指示信息，承载在根据网络设备配置的SL MAC CE的配置信息生成的SL MAC CE上传输。
可选地，本公开实施例提供的传输资源请求方法中，SL MAC CE的配置信息可以为经预定义的参数。
示例性地，SL MAC CE的配置信息可以被预定义为固定的参数。
例如，SL MAC CE的配置信息1：SL MAC CE的优先级为1、可使能HARQ反馈、不可使用发现消息专用发送资源池，可以使用configured grant。SL MAC CE的配置信息2：SL MAC CE的优先级为1、可使能HARQ反馈、可使用发现消息专用发送资源池，可以使用configured grant 2。
可以理解，若网络设备为源远端设备配置了固定的SL MAC CE的参数配置，则在源远端设备可以基于固定的SL MAC CE的参数配置，在将数据包传输指示信息，承载在基于固定的SL MAC CE的参数配置确定的SL MAC CE中传输。
可选地，本公开实施例提供的传输资源请求方法中，上述的S403具体可以通过下述的S43a执行：
S43a、在中继终端处于预设模式的情况下，中继终端根据数据包传输指示信息，向网络设备发送传输资源请求信息。
示例性地，预设模式可以为上述的模式1。即网络设备配置传输资源。
基于该方案，在中继终端处于模式1的情况下，若中继终端接收到源远端终端发送的数 据包传输指示信息，则中继终端根据数据包传输指示信息，可以预先向网络设备请求资源。
可选地，本公开实施例提供的传输资源请求方法中，上述的S403具体可以通过下述的S43b至S43e中的任意一项执行：
S43b、中继终端根据数据包传输指示信息，通过SL-BSR(Sidelink Buffer Status Report，侧行链路缓存状态报告)，向网络设备发送传输资源请求信息。
示例性地，中继终端可以将传输资源请求信息承载在SL-BSR中发送，即中继终端向网络设备发送SL-BSR，该SL-BSR中携带传输资源请求信息。
需要说明的是，该方案中的SL-BSR为通用的(或常规的)侧行链路缓存状态报告。即可以采用现有已有的SL-BSR携带传输资源请求信息。
S43c、中继终端根据数据包传输指示信息通过SR(Scheduling Request，调度请求)，向网络设备发送传输资源请求信息。
示例性地，中继终端可以将传输资源请求信息承载在SR中发送，即，中继终端向网络设备发送SR，该SR中携带传输资源请求信息。
S43d、中继终端根据数据包传输指示信息，通过UL MAC CE(uplink MAC CE，上行媒体接入层控制单元)，向网络设备发送传输资源请求信息。
需要说明的是，在该方案中，UL MAC CE可以为新的UL MAC CE，即专用于发送传输资源请求信息。
示例性地，中继终端可以将传输资源请求信息承载在UL MAC CE中发送，即，中继终端向网络设备发送UL MAC CE，该UL MAC CE中携带传输资源请求信息。
S43e、中继终端根据数据包传输指示信息，通过Pre-SL-BSR(预先请求资源的侧行链路缓存状态报告)，向网络设备发送传输资源请求信息。
其中，Pre-SL-BSR可以为专用于预先请求资源的SL-BSR，即，中继终端向网络设备发送Pre-SL-BSR，该Pre-SL-BSR中携带传输资源请求信息。
基于该方案，中继终端在接收到源远端终端发送的数据包传输指示信息之后，可以采用上述的不同的传输方式，提前向网络设备请求传输资源，在中继终端的MAC层产生数据之前发送资源请求，减少在数据包已经到达中继终端再请求资源引发的时延问题。
可选地，本公开实施例提供的传输资源请求方法中，Pre-SL-BSR可以包括以下至少一项：目标地址信息、优先级信息、数据包的缓存尺寸指示信息、数据包的传输周期指示信息、数据包的时延指示信息。
可选地，本公开实施例提供的传输资源请求方法中，目标地址信息，可以对应于数据包传输指示信息指示的第一目标地址，目标地址信息指示第二目标地址；或，目标地址信息，可以指示数据包传输指示信息指示的第一目标地址。
可以理解，目标地址信息指示的地址可以为第一目标地址，也可以为第二目标地址。
示例性地，目标地址信息可以为目标地址的索引信息。
一种示例，目标地址的索引信息可以指示目标地址的索引和频点信息进行序列化所产生的地址索引。
示例性地，表1和表2为本公开实施例提供的目标地址的索引信息的示例性表格。其中，表1中的索引信息为地址对应的索引信息，表2中的索引信息为地址和频点信息进行序列化所产生的地址索引。
表1
索引 地址
001 地址1
002 地址2
003 地址3
表2
索引 地址 频点
001 地址1 F1
002 地址1 F2
003 地址2 F1
004 地址2 F2
具体地，上述的Pre-SL-BSR中包括的优先级信息，可以是源远端终端数据包传输指示信息内所指示的优先级信息。
示例性地，优先级信息可以是数据包优先级、逻辑信道ID指示的优先级，或逻辑信道组ID指示的优先级。
具体地，上述的Pre-SL-BSR中包括的数据包缓存尺寸指示信息，可以为源远端终端数据包传输指示信息内指示的数据包的大小。
具体地，上述的Pre-SL-BSR中包括的数据包的传输周期指示信息，可以为源远端终端数据包传输指示信息内所指示的数据包的传输周期。
具体地，上述的Pre-SL-BSR中包括数据包的时延指示信息，可以为源远端终端数据包传输指示信息内所指示的数据包的最大时延或最小时延。
可选地，本公开实施例提供的传输资源请求方法中，Pre-SL-BSR的配置信息包括以下至少一项：
5-1：专用的SR配置。
5-2：专用的第一定时器，第一定时器为专用于预先请求资源的侧行链路缓存状态报告的周期性的定时器；例如，专用的sl-periodicPreBSR-Timer。
5-3：专用的第二定时器，第二定时器为专用于预先请求资源的侧行链路缓存状态报告的重传的定时器；例如，专用的sl-retxPreBSR-Timer。
5-4：专用的第三定时器，第三定时器为侧行链路的逻辑信道的调度请求的延时定时器；例如专用的sl-logicalChannelSR-DelayTimer。
在本公开实施例中，网络设备可以为中继终端配置Pre-SL-BSR的配置信息，以使得中继终端在接收到源远端终端发送的数据包指示信息后，中继终端可以基于Pre-SL-BSR的配置信息，确定是将传输资源请求信息承载在Pre-SL-BSR或承载在专用的SR中进行传输。
可选地，本公开实施例提供的传输资源请求方法中，上述的S43b具体可以通过下述的B1执行：
B1、若数据包传输指示信息为针对第一目标地址的传输指示信息，则中继终端根据数据包传输指示信息，通过SL-BSR向网络设备发送传输资源请求信息。
可以理解，若中继终端读取到源远端终端针对某一目标地址发送的数据包传输指示信息时，中继终端可以通过SL-BSR向网络设备请求资源。
可选地，本公开实施例提供的传输资源请求方法中，在上述的B1中，数据包传输指示信息携带的数据包优先级信息指示的优先级，高于中继终端之前通过SL-BSR请求的属于第一目标地址对应的逻辑信道组内的逻辑信道优先级。
可以理解，中继终端读取到源远端终端针对某一目标地址发送的数据包传输指示信息，且数据包传输指示信息内携带的数据包优先级信息指示的优先级，高于中继终端之前通过SL-BSR请求的属于该目标地址对应的逻辑信道组内的逻辑信道优先级，则中继终端可以通过SL-BSR向网络设备请求资源。
可选地，本公开实施例提供的传输资源请求方法中，在上述的B1中，中继终端未针对第一目标地址向网络设备发送过SL-BSR。
可以理解，中继终端读取到源远端终端针对某一目标地址发送的数据包传输指示信息，且中继终端未针对第一目标地址向网络设备发送过SL-BSR，则中继终端可以通过SL-BSR向网络设备请求资源。
可选地，本公开实施例提供的传输资源请求方法中，上述的S43c具体可以通过下述的C1执行：
C1、中继终端根据目标SR配置中配置的SR资源和数据包传输指示信息，通过SR，向网络设备发送传输资源请求信息。
即，当中继终端接收到源远端终端发送的数据包传输指示信息时，若网络设备为中继终端配置了SR配置，则中继终端可以通过对应的SR配置下的SR资源发送侧行链路资源预先请求。
可选地，本公开实施例提供的传输资源请求方法中，在上述的C1中，目标SR配置为中继终端与源远端终端建立目标连接后，网络设备为中继终端配置的。
示例性地，目标连接可以为PC5-RRC连接。
具体地，中继终端在与源远端终端建立了PC5-RRC连接之后，中继终端可以通过侧行链路终端辅助信息向网络设备上报此PC5-RRC连接相关的信息。
可选地，本公开实施例提供的传输资源请求方法中，目标SR配置的配置粒度为以下任意一项：
6-1：一个建立目标连接的源远端终端，对应目标SR配置。
即，网络设备可以为每个源远端终端设备配置一个SR配置。
6-2：至少两个建立目标连接的源远端终端，对应目标SR配置。
即，网络设备可以为多个已经建立目标连接的源远端终端，配置同一个SR配置。
6-3：一个建立目标连接的源远端终端对应的至少一个业务优先级，对应目标SR配置。
即，网络设备可以为一个源远端终端按照业务优先级，配置对应的SR配置，可以为每个业务优先级配置一个SR配置，也可以为多个业务优先级配置一个SR配置。
可选地，一个SR配置可以包括以下配置信息的至少一项：
7-1：一个或多个SR资源；
7-2：SR-prohibited(SR禁止)定时器。
示例性地，在中继终端接收到数据包传输指示信息后，中继终端可以在SR配置中配置的一个或多个SR资源上，传输承载了传输资源请求信息的SR。
可选地，本公开实施例提供的传输资源请求方法中，上述的S43c具体可以通过下述的C2执行：
C2：若一个窗轨的Pre-SL-BSR被触发，第三定时器未运行，且不存在可用上行资源或可用上行资源不足，则中继终端通过SR，向网络设备发送传输资源请求信息。
其中，上行资源不足指示该上行资源不足以承载Pre-SL-BSR和Pre-SL-BSR的MAC子头。
具体地，若一个窗轨的Pre-SL-BSR已经被触发，且sl-logicalChannelSR-DelayTimer并未运行，如果此时并未有可用的上行资源，或者可用的上行资源不足以承载Pre-SL-BSR和Pre-SL-BSR的MAC子头，则根据专用的SR配置触发SR请求，以请求传输资源。
可以理解，若一个窗轨的Pre-SL-BSR被触发，但是Pre-SL-BSR的配置信息中配置的第三定时器没有运行，也没有其他可用的上行资源，或者上行资源不足，则中继终端可以根据Pre-SL-BSR的配置信息中配置的SR配置，将传输资源请求信息承载在SR上传输。
可选地，本公开实施例提供的传输资源请求方法中，上述的S43e具体可以通过下述的E1执行：
E1、若中继终端获取到源远端终端发送的数据包传输指示信息，且中继终端未针对第一目标地址上报过目标BSR，则中继终端通过Pre-SL-BSR，向网络设备发送传输资源请求信息。
其中，目标BSR为SL-BSR或Pre-SL-BSR。
即，中继终端读取到源远端终端发送的数据包传输指示信息，且中继终端之前未针对数据包传输指示信息中携带/所对应的第一目标地址上报过SL-BSR或Pre-SL-BSR，则可以触发中继终端上报Pre-SL-BSR向网络设备预先请求传输资源。
可选地，本公开实施例提供的传输资源请求方法中，上述的S43e具体可以通过下述的E2执行：
E2、若数据包传输指示信息指示的逻辑信道的优先级，高于中继终端之前针对第一目标地址上报的目标BSR携带的优先级，则中继终端通过Pre-SL-BSR向网络设备发送传输资源请求信息。
即，中继终端确定源远端终端发送的数据包传输指示信息中携带的优先级，高于之前针对数据包传输指示信息中携带/对应的第一目标地址上报的SL-BSR或Pre-SL-BSR内携带的优先级时，可以触发中继终端上报Pre-SL-BSR向网络设备预先请求传输资源。
可选地，本公开实施例提供的传输资源请求方法中，上述的S43e具体可以通过下述的E3执行：
E3、若目标上行资源的逻辑信道优先级排序有效，且目标上行资源充足，则中继终端生成Pre-SL-BSR的MAC CE，启动第一定时器，通过Pre-SL-BSR，向网络设备发送传输资源请求信息。
其中，目标上行资源充足指示该目标上行资源可以承载Pre-SL-BSR和载Pre-SL-BSR的MAC子头。目标上行资源不充足指示该目标上行资源不足以承载Pre-SL-BSR和Pre-SL-BSR的MAC子头。
具体地，当当前上行资源针对一次新传，根据逻辑信道优先级排序是有效的，且该上行资源可以承载Pre-SL-BSR和Pre-SL-BSR的MAC子头时，可以指示中继终端的MAC层执行复用组装过程，以生成Pre-SL-BSR的MAC CE，然后启动sl-periodicPreBSR-Timer，然后向网络设备上报Pre-SL-BSR预先请求传输资源。
可以理解，在网络设备为中继终端配置了Pre-SL-BSR的配置信息之后，若存在上行资源的逻辑信道优先级排序有效，并且该上行资源可以承载Pre-SL-BSR和该Pre-SL-BSR的MAC子头，则中继终端可以生成传输Pre-SL-BSR的MAC CE，然后启动Pre-SL-BSR的配置信息中配置的第一定时器，上报Pre-SL-BSR。
可选地，本公开实施例提供的传输资源请求方法中，上述的S403之前，还可以包括下述的S404：
S404、中继终端向网络设备发送配置授权使用请求消息。
其中，配置授权使用请求消息用于请求使用网络设备已配置的配置授权。
可选地，本公开实施例提供的传输资源请求方法中，配置授权使用请求消息包括以下至少一项：
8-1：数据包对应的第一目标地址；
8-2：数据包内的最高优先级；
8-3：数据包期望使用的配置授权类型(configured grant type)；
8-4：数据包期望使用的配置授权索引(configured grant index)。
可选地，本公开实施例提供的传输资源请求方法中，在上述的S403之后，还可以包括下述的S405：
S405、网络设备接收中继终端发送的传输资源请求信息。
其中，传输资源请求信息为中继终端根据源远端终端发送的数据包传输指示信息触发发送的，传输资源请求信息用于中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
可选地，本公开实施例提供的传输资源请求方法中，在上述的S405之前，还可以包括下述的S406：
S406、在中继终端与源远端终端建立目标连接，且接收到源远端终端发送的侧行链路终端辅助信息后，网络设备为中继终端配置目标SR配置信息。
其中，传输资源请求信息为基于SR接收的。
需要说明的是，目标SR配置信息的解释说明可以结合上述实施例中的描述，此处不再 赘述。
基于该方案，网络设备可以为中继终端配置目标SR配置信息，以使得中继终端在向网络设备请求发送中继数据的资源时，可以基于目标SR配置信息发送SR请求资源。
可选地，本公开实施例提供的传输资源请求方法中，在上述的S405之前，还可以包括下述的S407：
S407、在中继终端与源远端终端建立目标连接，且接收到源远端终端发送的侧行链路终端辅助信息后，网络设备为源远端终端配置SL MAC CE的配置信息。
基于该方案，网络设备可以在接收到源远端终端发送的侧行链路终端辅助信息后，为源远端终端配置SL MAC CE的配置信息，以使得源远端终端可以基于SL MAC CE的配置信息通过SL MAC CE向中继终端发送数据包传输指示信息。
需要说明的是，本公开实施例提供的传输资源请求方法，执行主体还可以为传输资源请求装置，或者该传输资源请求装置中的用于执行传输资源请求方法的控制模块。本公开实施例中以传输资源请求装置执行传输资源请求的方法为例，说明本公开实施例提供的传输资源请求的装置。
图5为本公开实施例提供的一种终端设备的结构示意图，如图5中所示，终端设备500包括：接收模块501和发送模块502；接收模块501，用于接收源远端终端发送的数据包传输指示信息；发送模块502，用于根据接收模块501接收的数据包传输指示信息，向网络设备发送传输资源请求信息；其中，传输资源请求信息用于中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
可选地，数据包传输指示信息指示中继终端在接收到源远端终端的数据包之前，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
可选地，数据包传输指示信息的传输方式包括以下任意一项：SL MAC CE；PC5-RRC信令；SCI。
可选地，数据包传输指示信息的传输时刻包括以下任意一项：源远端终端第一次周期性传输业务数据的初传数据包的第一时刻；在第一时刻之前的第二时刻，第一时刻和第二时刻间隔预设时长；源远端终端的MAC实体对应的逻辑信道内产生数据缓存的第三时刻。
可选地，数据包传输指示信息，包括以下至少一项：数据包对应的第一目标地址；数据包内级联数据对应的多个逻辑信道的最高优先级；数据包内级联数据对应的多个逻辑信道的最高时延；数据包内级联数据对应的多个逻辑信道的最低时延；数据包的尺寸；数据包的传输周期；数据包的重传次数；数据包的HARQ属性。
可选地，在数据包传输指示信息承载在SL MAC CE中传输的情况下，SL MAC CE的配置信息包括以下至少一项：SL MAC CE的优先级；是否使能HARQ反馈；是否使用发现消息专用发送资源池；是否使用configured grant type1或configured grant type2。
可选地，配置信息为经预定义的参数。
可选地，发送模块具体用于：在中继终端处于预设模式的情况下，向网络设备发送传输资源请求信息。
可选地，发送模块具体用于：通过SL-BSR，向网络设备发送传输资源请求信息；或，通过SR，向网络设备发送传输资源请求信息；或，通过UL MAC CE，向网络设备发送传输资源请求信息；或，通过预先请求资源的SL-BSR，向网络设备发送传输资源请求信息。
可选地，发送模块具体用于：若数据包传输指示信息为针对第一目标地址的传输指示信息，则通过SL-BSR，向网络设备发送传输资源请求信息。
可选地，数据包传输指示信息携带的数据包优先级信息指示的优先级，高于中继终端之前通过SL-BSR的属于第一目标地址对应的逻辑信道组内的逻辑信道优先级。
可选地，中继终端未针对第一目标地址向网络设备发送过SL-BSR。
可选地，发送模块具体用于：根据目标SR配置中配置的SR资源，通过SR，向网络设备发送传输资源请求信息。
可选地，目标SR配置为中继终端与源远端终端建立目标连接后，网络设备为中继终端配置的。
可选地，目标SR配置的配置粒度为以下任意一项：一个建立目标连接的源远端终端，对应目标SR配置；至少两个建立目标连接的源远端终端，对应目标SR配置；一个建立目标连接的源远端终端对应的至少一个业务优先级，对应目标SR配置。
可选地，预先请求资源的SL-BSR包括以下至少一项：目标地址信息、优先级信息、数据包的缓存尺寸指示信息、数据包的传输周期指示信息、数据包的时延指示信息。
可选地，目标地址信息，对应于数据包传输指示信息指示的第一目标地址，目标地址信息指示第二目标地址；或，目标地址信息，指示数据包传输指示信息指示的第一目标地址。
可选地，发送模块具体用于：若获取到源远端终端发送的数据包传输指示信息，且中继终端未针对第一目标地址上报过目标缓存状态报告，则通过预先请求资源的SL-BSR，向网络设备发送传输资源请求信息；其中，目标缓存状态报告为SL-BSR或预先请求资源的SL-BSR。
可选地，发送模块具体用于：若数据包传输指示信息指示的逻辑信道的优先级，高于中继终端之前针对第一目标地址上报的目标缓存状态报告携带的优先级，则通过预先请求资源的侧行链路缓存状态报告，向网络设备发送传输资源请求信息；其中，目标缓存状态报告为SL-BSR或预先请求资源的SL-BSR。
可选地，预先请求资源的SL-BSR的配置信息包括以下至少一项：专用的SR配置；专用的第一定时器，第一定时器为预先请求资源的SL-BSR的周期性的定时器；专用的第二定时器，第二定时器为预先请求资源的SL-BSR的重传的定时器；专用的第三定时器，第三定时器为侧行链路的逻辑信道的SR的延时定时器。
可选地，发送模块具体用于：若目标上行资源的逻辑信道优先级排序有效，且目标上行资源充足，则生成预先请求资源的SL-BSR的MAC CE，启动第一定时器，通过预先请求资源的SL-BSR，向网络设备发送传输资源请求信息；其中，目标上行资源充足指示目标上行资源可承载预先请求资源的SL-BSR和专预先请求资源的SL-BSR的MAC子头。
可选地，发送模块具体用于：若一个窗轨的预先请求资源的SL-BSR被触发，第三定时器未运行，且不存在可用上行资源或可用上行资源不足，则通过SR向网络设备发送传输资源请求信息；其中，可用上行资源不足指示可用上行资源不足以承载预先请求资源的SL-BSR和预先请求资源的SL-BSR的MAC子头。
可选地，发送模块还用于：在接收模块接收源远端终端发送数据包传输指示信息之后，向网络设备发送配置授权使用请求消息；其中，配置授权使用请求消息用于请求使用网络设备已配置的配置授权。
可选地，配置授权使用请求消息包括以下至少一项：数据包对应的第一目标地址；数据包内的最高优先级；数据包期望使用的配置授权类型；数据包期望使用的配置授权索引。
本公开实施例提供的终端设备500能够实现图1至图4B方法实施例中继终端实现的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
图6为本公开实施例提供的一种终端设备，该终端设备可以作为源远端终端，该终端设备600包括：发送模块601；发送模块601，用于向中继终端发送数据包传输指示信息；其中，数据包传输指示信息指示中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
可选地，数据包传输指示信息指示中继终端在接收到源远端终端发送的数据包之前，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
可选地，数据包传输指示信息的发送时刻为以下任意一项：源远端终端第一次周期性传输业务数据的初传数据包的第一时刻；在第一时刻之前的第二时刻，第一时刻和第二时刻间隔预设时长；源远端终端的MAC实体对应的逻辑信道内产生数据缓存的第三时刻。
可选地，数据包传输指示信息的传输方式包括以下任意一项：SL MAC CE；PC5-RRC信令；SCI。
可选地，数据包传输指示信息，包括以下至少一项：数据包对应的第一目标地址；数据包内级联数据对应的多个逻辑信道的最高优先级；数据包内级联数据对应的多个逻辑信道的最高时延；数据包内级联数据对应的多个逻辑信道的最低时延；数据包的尺寸；数据包的传输周期；数据包的重传次数；数据包的HARQ属性。
可选地，在数据包传输指示信息承载在SL MAC CE中传输的情况下，SL MAC CE的配置信息包括以下至少一项：SL MAC CE的优先级；是否使能HARQ反馈；是否使用发现消息专用发送资源池；是否使用配置授权类型1或配置授权类型2。
可选地，配置信息为经预定义的参数。
本公开实施例提供的终端设备600能够实现图1至图4B方法实施例源远端终端实现的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
图7为本公开实施例提供的一种网络设备的结构示意图，如图7中所示，该网络设备700包括：接收模块701；接收模块701，用于接收中继终端发送的传输资源请求信息；其中，传输资源请求信息为中继终端根据源远端终端发送的数据包传输指示信息触发发送的，传输资源请求信息用于中继终端，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
可选地，数据包传输指示信息指示中继终端在接收到源远端终端发送的数据包之前，向网络设备请求传输源远端终端向目的远端终端传输的业务数据的传输资源。
可选地，网络设备700还包括：配置模块702；配置模块702，用于在接收中继终端发送的传输资源请求信息之前，在中继终端与源远端终端建立目标连接，且接收到源远端终端发送的侧行链路终端辅助信息后，为中继终端配置目标SR配置信息；其中，传输资源请求信息为基于SR接收的。
可选地，目标SR配置的配置粒度为以下任意一项：一个建立目标连接的源远端终端，对应目标SR配置；至少两个建立目标连接的源远端终端，对应目标SR配置；一个建立目标连接的源远端终端对应的至少一个业务优先级，对应目标SR配置。
可选地，配置模块，还用于在接收模块接收中继终端发送的传输资源请求信息之前，在中继终端与源远端终端建立目标连接，且接收到源远端终端发送的侧行链路终端辅助信息后，为源远端终端配置SL MAC CE的配置信息。
本公开实施例提供的网络设备700能够实现图1至图4B方法实施例网络设备实现的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
可选地，如图8所示，本公开实施例还提供一种终端设备800，包括处理器801，存储器802，存储在存储器802上并可在处理器801上运行的程序或指令，该程序或指令被处理器801执行时实现上述传输资源请求方法实施例的源远端终端或中继终端执行的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
可选地，如图9所示，本公开实施例还提供一种网络设备900，包括处理器901，存储器902，存储在存储器902上并可在处理器901上运行的程序或指令，该程序或指令被处理器901执行时实现上述传输资源请求方法实施例的网络设备执行各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要说明的是，图10示出的设备1000仅是一个示例，设备1000可以为上述实施例中的终端设备，也可以为上述实施例中的网络设备，不应对本公开实施例的功能和使用范围带来任何限制。
如图10所示，设备1000包括中央处理单元(Central Processing Unit，CPU)1001，其可以根据存储在ROM(Read Only Memory，只读存储器)1002中的程序或者从存储部分1008加载到RAM(Random Access Memory，随机访问存储器)1003中的程序而执行各种适当的动作和处理。在RAM 1003中，还存储有系统操作所需的各种程序和数据。CPU 1001、ROM 1002以及RAM 1003通过总线1004彼此相连。I/O(Input/Output，输入/输出)接口1005也连接至总线1004。
以下部件连接至I/O接口1005：包括键盘、鼠标等的输入部分1006；包括诸如CRT(Cathode Ray Tube，阴极射线管)、LCD(Liquid Crystal Display，液晶显示器)等以及扬声器等的输出部分1007；包括硬盘等的存储部分1008；以及包括诸如LAN(Local Area Network，无线网络)卡、调制解调器等的网络接口卡的通信部分1009。通信部分1009经由诸如因特网的网络执行通信处理。驱动器710也根据需要连接至I/O接口1005。可拆卸介质1011，诸如磁盘、光盘、磁光盘、半导体存储器等等，根据需要安装在驱动器1010上，以便于从其上读出的计算机程序根据需要被安装入存储部分1008。
特别地，根据本公开的实施例，下文参考流程图描述的过程可以被实现为计算机软件程序。例如，本公开的实施例包括一种计算机程序产品，其包括承载在计算机可读介质上的计算机程序，该计算机程序包含用于执行流程图所示的方法的程序代码。在这样的实施例中，该计算机程序可以通过通信部分1009从网络上被下载和安装，和/或从可拆卸介质1011被安装。在该计算机程序被中央处理单元(CPU 1001)执行时，执行本公开的系统中限定的各种功能。
本公开实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述传输资源请求方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的电子设备中的处理器。所述可读存储介质，包括计算机可读存储介质，如ROM、RAM、磁碟或者光盘等。
本公开实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述传输资源请求方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本公开实施例提到的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。
本公开实施例提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如上述的传输资源请求方法的步骤，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本公开实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献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(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (43)

  1. 一种传输资源请求方法，应用于中继终端，所述方法包括：
    接收源远端终端发送的数据包传输指示信息；
    根据所述数据包传输指示信息，向网络设备发送传输资源请求信息；
    其中，所述传输资源请求信息用于，所述中继终端向所述网络设备请求传输所述源远端终端向目的远端终端传输的业务数据的传输资源。
  2. 根据权利要求1所述的方法，其中，所述数据包传输指示信息指示所述中继终端在接收到所述源远端终端的数据包之前，向所述网络设备请求传输所述源远端终端向目的远端终端传输的业务数据的传输资源。
  3. 根据权利要求1所述的方法，其中，所述数据包传输指示信息的传输方式包括以下任意一项：
    侧行链路媒体接入层控制单元SL MAC CE；
    PC5接口上的无线资源控制信令；
    串行通信接口。
  4. 根据权利要求1所述的方法，其中，所述数据包传输指示信息的传输时刻包括以下任意一项：
    所述源远端终端第一次周期性传输业务数据的初传数据包的第一时刻；
    在所述第一时刻之前的第二时刻，所述第一时刻与第二时刻间隔预设时长；
    所述源远端终端的媒体访问控制实体对应的逻辑信道内产生数据缓存的第三时刻。
  5. 根据权利要求1所述的方法，其中，所述数据包传输指示信息，包括以下至少一项：
    数据包对应的第一目标地址；
    数据包内级联数据对应的多个逻辑信道的最高优先级；
    数据包内级联数据对应的多个逻辑信道的最高时延；
    数据包内级联数据对应的多个逻辑信道的最低时延；
    数据包的尺寸；
    数据包的传输周期；
    数据包的重传次数；
    数据包的混合自动重传请求属性。
  6. 根据权利要求3所述的方法，其中，在所述数据包传输指示信息承载在SL MAC CE中传输的情况下，所述SL MAC CE的配置信息包括以下至少一项：
    所述SL MAC CE的优先级；
    是否使能混合自动重传请求反馈；
    是否使用发现消息专用发送资源池；
    是否使用配置授权类型1或配置授权类型2。
  7. 根据权利要求6所述的方法，其中，所述配置信息为经预定义的参数。
  8. 根据权利要求1至7中任一项所述的方法，其中，所述向所述网络设备发送传输资源请求信息，包括：
    在所述中继终端处于预设模式的情况下，向所述网络设备发送传输资源请求信息。
  9. 根据权利要求1至7中任一项所述的方法，其中，所述向所述网络设备发送传输资源请求信息包括：
    通过侧行链路缓存状态报告SL-BSR，向所述网络设备发送传输资源请求信息；或，
    通过调度请求，向所述网络设备发送传输资源请求信息；或，
    通过上行MAC CE，向所述网络设备发送传输资源请求信息；或，
    通过预先请求资源的SL-BSR，向所述网络设备发送传输资源请求信息。
  10. 根据权利要求9所述的方法，其中，所述通过SL-BSR，向所述网络设备发送传输资源请求信息，包括：
    若所述数据包传输指示信息为针对第一目标地址的传输指示信息，则通过SL-BSR，向所述网络设备发送传输资源请求信息。
  11. 根据权利要求10所述的方法，其中，所述数据包传输指示信息携带的数据包优先级信息指示的优先级，高于所述中继终端之前通过SL-BSR请求的属于所述第一目标地址对应的逻辑信道组内的逻辑信道优先级。
  12. 根据权利要求10所述的方法，其中，所述中继终端未针对所述第一目标地址向所述网络设备发送过SL-BSR。
  13. 根据权利要求9所述的方法，其中，所述通过调度请求，向所述网络设备发送传输资源请求信息，包括：
    根据目标调度请求配置中配置的调度请求资源，通过调度请求，向所述网络设备发送传输资源请求信息。
  14. 根据权利要求13所述的方法，其中，所述目标调度请求配置为所述中继终端与所述源远端终端建立目标连接后，所述网络设备为所述中继终端配置的。
  15. 根据权利要求14所述的方法，其中，所述目标调度请求配置的配置粒度为以下任意一项：
    一个建立所述目标连接的源远端终端，对应所述目标调度请求配置；
    至少两个建立所述目标连接的源远端终端，对应所述目标调度请求配置；
    一个建立所述目标连接的源远端终端对应的至少一个业务优先级，对应所述目标调度请求配置。
  16. 根据权利要求9所述的方法，其中，所述预先请求资源的SL-BSR包括以下至少一项：
    目标地址信息、优先级信息、数据包的缓存尺寸指示信息、数据包的传输周期指示信息、数据包的时延指示信息。
  17. 根据权利要求16所述的方法，其中，
    所述目标地址信息，对应于所述数据包传输指示信息指示的第一目标地址，所述目标地址信息指示第二目标地址；或，
    所述目标地址信息，指示所述数据包传输指示信息指示的第一目标地址。
  18. 根据权利要求9所述的方法，其中，所述通过预先请求资源的SL-BSR，向所述网络设备发送传输资源请求信息，包括：
    若获取到所述源远端终端发送的所述数据包传输指示信息，且所述中继终端未针对所述第一目标地址上报过目标缓存状态报告，则通过预先请求资源的SL-BSR，向所述网络设备发送传输资源请求信息；
    其中，所述目标缓存状态报告为SL-BSR或预先请求资源的SL-BSR。
  19. 根据权利要求9所述的方法，其中，所述通过预先请求资源的SL-BSR，向所述网络设备发送传输资源请求信息，包括：
    若所述数据包传输指示信息指示的逻辑信道的优先级，高于所述中继终端之前针对所述第一目标地址上报的目标缓存状态报告携带的优先级，则通过预先请求资源的SL-BSR，向所述网络设备发送传输资源请求信息；
    其中，所述目标缓存状态报告为SL-BSR或预先请求资源的SL-BSR内。
  20. 根据权利要求9所述的方法，其中，所述预先请求资源的SL-BSR的配置信息包括以下至少一项：
    专用的调度请求配置；
    专用的第一定时器，所述第一定时器为专用于预先请求资源的SL-BSR的周期性的定时器；
    专用的第二定时器，所述第二定时器为专用于预先请求资源的SL-BSR的重传的定时器；
    专用的第三定时器，所述第三定时器为侧行链路的逻辑信道的调度请求的延时定时器。
  21. 根据权利要求20所述的方法，其中，所述通过所述预先请求资源的SL-BSR向所述网络设备发送传输资源请求信息，包括：
    若目标上行资源的逻辑信道优先级排序有效，且所述目标上行资源充足，则生成所述预先请求资源的SL-BSR的MAC CE，启动所述第一定时器，通过所述预先请求资源的SL-BSR，向所述网络设备发送传输资源请求信息；
    其中，所述目标上行资源充足指示所述目标上行资源可承载所述预先请求资源的SL-BSR和所述预先请求资源的SL-BSR的媒体接入层子头。
  22. 根据权利要求20所述的方法，其中，所述通过调度请求向所述网络设备发送传输资源请求信息，包括：
    若一个窗轨的预先请求资源的SL-BSR被触发，所述第三定时器未运行，且不存在可用上行资源或可用上行资源不足，则通过调度请求向所述网络设备发送传输资源请求信息；
    其中，所述可用上行资源不足指示所述可用上行资源不足以承载所述预先请求资源的SL-BSR和所述预先请求资源的SL-BSR的媒体接入层子头。
  23. 根据权利要求1所述的方法，其中，所述接收源远端终端发送数据包传输指示信息之后，所述方法还包括：
    向所述网络设备发送配置授权使用请求消息；
    其中，所述配置授权使用请求消息用于请求使用所述网络设备已配置的配置授权。
  24. 根据权利要求23所述的方法，其中，所述配置授权使用请求消息包括以下至少一项：
    数据包对应的第一目标地址；
    数据包内的最高优先级；
    数据包期望使用的配置授权类型；
    数据包期望使用的配置授权索引。
  25. 一种传输资源请求方法，应用于源远端终端，所述方法包括：
    向中继终端发送数据包传输指示信息；
    其中，所述数据包传输指示信息指示所述中继终端，向网络设备请求传输所述源远端终端向目的远端终端传输的业务数据的传输资源。
  26. 根据权利要求25所述的方法，其特征在于，所述数据包传输指示信息指示所述中继终端在接收到所述源远端终端发送的数据包之前，向网络设备请求传输所述源远端终端向目的远端终端传输的业务数据的传输资源。
  27. 根据权利要求25所述的方法，其中，所述数据包传输指示信息的发送时刻为以下任意一项：
    所述源远端终端第一次周期性传输业务数据的初传数据的第一时刻；
    在所述第一时刻之前的第二时刻，所述第一时刻和所述第二时刻间隔预设时长；
    所述源远端终端的媒体访问控制实体对应的逻辑信道内产生数据缓存的第三时刻。
  28. 根据权利要求25所述的方法，其中，所述数据包传输指示信息的传输方式包括以下任意一项：
    侧行链路媒体接入层控制单元SL MAC CE；
    PC5接口上的无线资源控制信令；
    串行通信接口。
  29. 根据权利要求25所述的方法，其中，所述数据包传输指示信息，包括以下至少一项：
    数据包对应的第一目标地址；
    数据包内级联数据对应的多个逻辑信道的最高优先级；
    数据包内级联数据对应的多个逻辑信道的最高时延；
    数据包内级联数据对应的多个逻辑信道的最低时延
    数据包的尺寸；
    数据包的传输周期；
    数据包的重传次数；
    数据包的混合自动重传请求属性。
  30. 根据权利要求28所述的方法，其中，在所述数据包传输指示信息承载在SL MAC CE中传输的情况下，所述SL MAC CE的配置信息包括以下至少一项：
    所述SL MAC CE的优先级；
    是否使能混合自动重传请求反馈；
    是否使用发现消息专用发送资源池；
    是否使用配置授权类型1或配置授权类型2。
  31. 根据权利要求30所述的方法，其中，所述配置信息为经预定义的参数。
  32. 一种传输资源请求方法，应用于网络设备，所述方法包括：
    接收中继终端发送的传输资源请求信息；
    其中，所述传输资源请求信息为所述中继终端根据源远端终端发送的数据包传输指示信息触发发送的，所述传输资源请求信息用于所述中继终端，向所述网络设备请求传输所述源远端终端向目的远端终端传输的业务数据的传输资源。
  33. 根据权利要求32所述的方法，其中，所述数据包传输指示信息指示所述中继终端在接收到源远端终端的数据报之前，向所述网络设备请求传输所述源远端终端向目的远端终端传输的业务数据的传输资源。
  34. 根据权利要求32所述的方法，其中，所述接收中继终端发送的传输资源请求信息之前，所述方法还包括：
    在所述中继终端与所述源远端终端建立目标连接，且接收到所述源远端终端发送的侧行链路终端辅助信息后，为所述中继终端配置目标调度请求配置信息；
    其中，所述传输资源请求信息为基于调度请求接收的。
  35. 根据权利要求34所述的方法，其中，所述目标调度请求配置的配置粒度为以下任意一项：
    一个建立所述目标连接的源远端终端，对应所述目标调度请求配置；
    至少两个建立所述目标连接的源远端终端，对应所述目标调度请求配置；
    一个建立所述目标连接的源远端终端对应的至少一个业务优先级，对应所述目标调度请求配置。
  36. 根据权利要求34所述的方法，其中，所述接收中继终端发送的传输资源请求信息之前，所述方法还包括：
    在所述中继终端与所述源远端终端建立目标连接，且接收到所述源远端终端发送的侧行链路终端辅助信息后，为所述源远端终端配置侧行链路媒体接入层控制单元的配置信息。
  37. 一种终端设备，所述终端设备为中继终端，所述中继终端包括：接收模块和发送模块；
    所述接收模块，用于接收源远端终端发送的数据包传输指示信息；
    所述发送模块，用于根据所述接收模块接收的所述数据包传输指示信息，向网络设备 发送传输资源请求信息；
    其中，所述传输资源请求信息用于所述中继终端，向所述网络设备请求传输所述源远端终端向目的远端终端传输的业务数据的传输资源。
  38. 一种终端设备，所述终端设备为源远端终端，所述源远端终端包括：发送模块；
    所述发送模块，用于向中继终端发送数据包传输指示信息；
    其中，所述数据包传输指示信息指示所述中继终端，向网络设备请求传输所述源远端终端向目的远端终端传输的业务数据的传输资源。
  39. 一种网络设备，所述网络设备包括：接收模块；
    所述接收模块，用于接收中继终端发送的传输资源请求信息；
    其中，所述传输资源请求信息为所述中继终端根据源远端终端发送的数据传输指示信息触发发送的，所述传输资源请求信息用于所述中继终端，向所述网络设备请求传输所述源远端终端向目的远端终端传输的业务数据的传输资源。
  40. 一种终端设备，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至24、25至31、或32至36中任一项所述的传输资源请求方法的步骤。
  41. 一种网络设备，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求28至31中任一项所述的传输资源请求方法的步骤。
  42. 一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1至24、25至31、或32至36中任一项所述的传输资源请求方法的步骤。
  43. 一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如权利要求1至24、25至31、或32至36中任一项所述的传输资源请求方法的步骤。
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