WO2021000306A1 - 一种侧行链路实现方法及相关产品 - Google Patents

一种侧行链路实现方法及相关产品 Download PDF

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Publication number
WO2021000306A1
WO2021000306A1 PCT/CN2019/094627 CN2019094627W WO2021000306A1 WO 2021000306 A1 WO2021000306 A1 WO 2021000306A1 CN 2019094627 W CN2019094627 W CN 2019094627W WO 2021000306 A1 WO2021000306 A1 WO 2021000306A1
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WIPO (PCT)
Prior art keywords
bsr
mac pdu
bits
set condition
terminal
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PCT/CN2019/094627
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English (en)
French (fr)
Inventor
卢前溪
赵振山
林晖闵
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 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 CN201980095831.2A priority Critical patent/CN113728711A/zh
Priority to KR1020217042917A priority patent/KR20220030951A/ko
Priority to PCT/CN2019/094627 priority patent/WO2021000306A1/zh
Priority to CN202210022277.9A priority patent/CN114364043A/zh
Priority to JP2021576721A priority patent/JP7490005B2/ja
Priority to EP19935797.1A priority patent/EP3979743B1/en
Publication of WO2021000306A1 publication Critical patent/WO2021000306A1/zh
Priority to US17/563,752 priority patent/US20220124778A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0278Traffic management, e.g. flow control or congestion control using buffer status reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02Data link layer protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the embodiments of the present application relate to the field of terminal technology, and in particular to a method for implementing a side link and related products.
  • Device-to-device communication is a D2D-based side-link transmission technology SL (English: Sidelink, Chinese: Sidelink).
  • SL Sidelink
  • the car networking system adopts terminal-to-terminal direct communication, so it has higher spectrum efficiency and lower transmission delay.
  • SL BSR Sidelink Buffer Status Report
  • Chinese Sidelink Buffer Status Report
  • This application provides an implementation method and related products of a side link, which implements the priority transmission of SL BSR and supports the priority transmission of SL data.
  • the embodiments of the present application provide a method for implementing a side link based on device communication, and the method includes the following steps:
  • the side link buffer status report SL BSR is reported in preference to the uplink buffer status report UL BSR.
  • a device in a second aspect, includes:
  • the reporting unit is used to report the side link buffer status report SL BSR in preference to the uplink buffer status report UL BSR.
  • a system for implementing a side link based on device communication includes: a first terminal and a second terminal, wherein:
  • the first terminal is configured to report the side link buffer status report SL BSR in preference to the uplink buffer status report UL BSR.
  • an electronic device including a processor and a memory, the memory is configured to store one or more programs and are configured to be executed by the processor, and the program includes a program for executing the method in the first aspect Instructions for the steps.
  • a computer-readable storage medium which stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method provided in the first aspect.
  • a computer program product in a sixth aspect, includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the method provided in the first aspect.
  • Figure 1a is a schematic diagram of the network structure of Mode A provided by an embodiment of the present application.
  • Figure 1b is a schematic diagram of the network structure of Mode B provided by an embodiment of the present application.
  • Fig. 2a is a schematic flowchart of a method for implementing a side link provided by an embodiment of the present application
  • 2b is a schematic flowchart of a method for implementing a side link provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a BSR timer strategy provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of an event processing strategy provided by an embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • Fig. 6 is a schematic structural diagram of a system for implementing a side link provided by an embodiment of the present application.
  • Figure 7a is a schematic flowchart of a method for implementing a side link provided by an embodiment of the present application.
  • Fig. 7b is a schematic flowchart of another method for implementing a side link provided by an embodiment of the present application.
  • the electronic devices involved in the embodiments of this application may include various handheld devices (such as smart phones) with wireless communication functions, in-vehicle devices, wearable devices, computing devices or other processing devices connected to wireless modems, and various forms User equipment (UE), mobile station (MS), terminal device (terminal device), R&D/test platform, server, etc.
  • UE User equipment
  • MS mobile station
  • terminal device terminal device
  • R&D/test platform server, etc.
  • D2D is a device-to-device communication.
  • D2D is divided into 3 stages, namely:
  • ProSe (English: Proximity based Service): In Rel-12/13, device-to-device communication is researched for the ProSe scenario, which is mainly for public safety services.
  • V2X Internet of Vehicles
  • Wearable device In Rel-14, this scenario studies the scenario of wearable devices accessing the network through mobile phones, which is mainly oriented to scenarios with low mobile speed and low power access.
  • D2D in 3GPP can be divided into two types of mode architectures, mode A architecture and mode B architecture.
  • the framework of Mode A includes: terminal 1, terminal 2, and base station (eNB), wherein the terminal 1 and terminal 2 are respectively connected to the base station, and the terminal 1 and the terminal 2 are also connected.
  • the connection link between terminal 1 and terminal 2 is SL
  • the connection link between terminal 1 and eNB is DL
  • the connection link between terminal 2 and eNB is DL.
  • the framework of Mode B includes: terminal 1, terminal 2, and base station (eNB), wherein the terminal 1 and terminal 2 are not connected to the base station, and the terminal 1 and terminal 2 are connected.
  • the connection link between terminal 1 and terminal 2 is SL.
  • BSR Battery Status Report
  • DL BSR English: Up-Link Buffer Status Report
  • SL BSR Sidelink Buffer Status Report
  • Sidelink Buffer Status Report Chinese: Sidelink Buffer Status Report
  • An embodiment of the present application provides a method for implementing a side link.
  • the method is implemented by a terminal.
  • the terminal may be terminal 1 or terminal 2 as shown in FIG. 1a or FIG. 1b.
  • the method is shown in FIG. 2a. , Including the following steps:
  • Step S201a The terminal prioritizes the SL BSR to report the UL BSR.
  • the reporting object in the above step S201a may be different.
  • the terminal performing this step S201a is located in the architecture shown in FIG. 1a, and the object of the report in the above step S201a may be the terminal 2 or the eNB.
  • the terminal that executes step S201a is located in the architecture as shown in FIG. 1b, and the object reported in step S201a above may be terminal 2.
  • the specific implementation manner is not limited to the specific reporting manner described above.
  • the technical solution provided by an embodiment provided in this application sets the SL BSR to be reported in preference to the UL BSR, so that in practical applications, the network side can obtain the SL BSR in real time, which supports the preferential transmission of SL data.
  • the reporting of SL BSR over UL BSR may include any of the following situations:
  • the MAC PDU (English: media access control protocol data unit, Chinese: media access control protocol data unit) includes SL BSR first, and UL BSR later.
  • the resources where the MAC PDU can add the BSR are first to add the SL BSR, and then add the UL BSR.
  • the foregoing priority in the MAC PDU including the priority in the SL BSR is prior to the UL BSR, and has no effect on the priority of other data in the MAC PDU and the BSR. For example, if the MAC PDU has data ⁇ with a higher priority than BSR, the priority of data ⁇ is still higher than that of SL BSR and UL BSR.
  • Case B The first part of SL BSR is included in the MAC PDU first, followed by the UL BSR.
  • the first part SL BSR in the above case B is part of data such as the SL BSR in case A.
  • the first part of the SL BSR in the above case B may be the first SL BSR.
  • the first part of SL BSR in case B above may be the first SL BSR and part of the second SL BSR.
  • the foregoing first SL BSR is data in the SL BSR that meets the set condition
  • the foregoing second SL BSR is data in the SL BSR that does not meet the set condition.
  • the aforementioned part of the second SL BSR may be part of data in the second SL BSR.
  • the second part SL BSR in the above case C is partial data of the SL BSR in the case A, and the first part SL BSR and the second part SL BSR may be the same data.
  • the foregoing first part SL BSR may also be different data from the second part SL BSR.
  • the second part SL BSR in the above case C may be the first SL BSR.
  • the second part SL BSR in case C may be part of the first SL BSR.
  • the second part SL BSR in the above case C may also be the first SL BSR and part of the second SL BSR.
  • Case D The MAC PDU includes the first SL BSR first, then includes the UL BSR, and then includes the second SL BSR.
  • the above situation D may be: it is determined that the resources where the MAC PDU can add the BSR are first to add the SL BSR, secondly add the UL BSR, and finally add the second SL BSR.
  • Case E The MAC PDU includes the first SL BSR first, then includes the UL BSR, and then includes part of the second SL BSR.
  • the above situation E may be: it is determined that the resources where the MAC PDU can add the BSR are first to add the SL BSR, then the UL BSR is added, and finally a part of the second SL BSR is added.
  • the embodiment of the present application provides a method for implementing a side link.
  • the method is implemented by a terminal.
  • the terminal may be terminal 1 or terminal 2 as shown in FIG. 1a or FIG. 1b.
  • the method is shown in Figure 2b and includes the following steps:
  • Step S201b The terminal obtains the number of resource bits
  • Step S202b The terminal determines that the SL BSR has priority over the UL BSR to report based on the number of resource bits.
  • the technical solution provided by another embodiment of the present application sets SL BSR to be reported prior to UL BSR, so that in practical applications, when the number of resource bits is limited, the network side can give priority to obtaining SL BSR, which supports SL data Priority transmission.
  • the implementation method of the foregoing step S202b may specifically be any one of the following situations:
  • the number of resource bits can carry SL BSR and UL BSR (that is, the number of resource bits ⁇ SL BSR bit number + UL BSR bit number), it is determined that the SL BSR is included in the MAC PDU first, and then the UL BSR is included.
  • the above case a1 is aimed at the network state where the number of resource bits is relatively sufficient. At this time, the number of resource bits can carry SL BSR and UL BSR. In case a1, the MAC PDU carries SL BSR first, and UL BSR second.
  • the number of resource bits can carry SL BSR and UL BSR (that is, the number of resource bits ⁇ SL BSR bit number + UL BSR bit number), and it is determined that the first SL BSR, then UL BSR, and the second one are included in the MAC PDU. Two SL BSR.
  • first SL BSR and second SL BSR For the definition of the foregoing first SL BSR and second SL BSR, reference may be made to the description in Case B in an embodiment.
  • the above case a2 is for the network state where the number of resource bits is sufficient.
  • the number of resource bits can carry SL BSR and UL BSR.
  • Case a1 first carries the first SL BSR in the MAC PDU, then carries the UL BSR, and finally carries the second SL BSR .
  • a2 mainly ensures that the first SL BSR with a higher priority is reported to the network side, then the UL BSR is reported to the network side, and finally the second SL BSR with a lower priority is reported to the network side.
  • Case b1 When the number of resource bits meets the requirements to carry the first SL BSR and UL BSR or cannot fully carry any one or any combination of SL BSR and UL BSR (that is, the number of first SL BSR bits + the number of UL BSR bits ⁇ the number of resource bits ⁇ SL BSR Number of bits + number of UL BSR bits, number of first SL BSR bits + number of UL BSR bits ⁇ number of resource bits, number of resource bits ⁇ SL BSR bits + UL BSR bits), make sure to include the first SL BSR first in the MAC PDU , And then include UL BSR, and then include part of the second SL BSR.
  • the number of resource bits meets the requirements to carry the first SL BSR and UL BSR or cannot fully carry any one or any combination of SL BSR and UL BSR (that is, the number of first SL BSR bits + the number of UL BSR bits ⁇ the number of resource bits ⁇ SL BSR Number of bits + number of UL
  • the above case b1 is for the network state where the number of resource bits is relatively sufficient (that is, the number of resource bits is less than the number of resource bits in cases a1 and a2). At this time, the number of resource bits cannot carry SL BSR and UL BSR, but can completely carry the first SL BSR +UL BSR.
  • the MAC PDU carries the first SL BSR first, followed by the UL BSR. Since the number of resource bits cannot completely carry the second SL BSR with the lowest priority level, part of the second SL BSR is finally carried.
  • b1 mainly ensures that the first SL BSR with higher priority is reported to the network side, and then the UL BSR is reported to the network side, and finally, some second SL BSRs with lower priority are reported to the network side.
  • the number of resource bits in the above case b2 is less than the number of resource bits in case b1. At this time, although the number of resource bits in b2 can completely carry the first SL BSR+UL BSR, the MAC PDU completely carries the first SL BSR+ After UL BSR, there are few or no remaining bits, so the second SL BSR cannot be carried.
  • Case c1 When the number of resource bits meets the requirement to carry the first SL BSR or cannot fully carry one or any combination of the first SL BSR and UL BSR (that is, the number of first SL BSR bits ⁇ number of resource bits ⁇ number of first SL BSR bits + The number of UL BSR bits, the number of first SL BSR bits ⁇ the number of resource bits, the number of resource bits ⁇ the number of first SL BSR bits + the number of UL BSR bits), the MAC PDU is determined to include the first SL BSR first, and then part of the UL BSR.
  • the number of resource bits in case c1 is smaller than that in case b2, the number of resource bits in case c1 can fully carry the first SL BSR, but cannot fully carry the first SL BSR and UL BSR.
  • the first SL BSR with a higher priority is first carried in the MAC PDU.
  • the remaining bits of the MAC PDU cannot fully carry the UL BSR, so the MAC PDU carries part of the UL BSR.
  • Case c2 When the number of resource bits meets the requirement to carry the first SL BSR or cannot fully carry one or any combination of the first SL BSR and UL BSR (that is, the number of first SL BSR bits ⁇ number of resource bits ⁇ number of first SL BSR bits + The number of UL BSR bits, the number of first SL BSR bits ⁇ the number of resource bits, the number of resource bits ⁇ the number of first SL BSR bits + the number of UL BSR bits), the MAC PDU is determined to include the first SL BSR first, and then the second SL BSR.
  • the number of resource bits in case c2 is less than the number of resource bits in case b2
  • the number of resource bits in case c2 can fully carry the first SL BSR, but cannot fully carry the first SL BSR and UL BSR.
  • the first SL BSR with a higher priority is given priority. If there are more remaining bits in the MAC PDU, the second SL BSR can be carried in the MAC PDU.
  • Case c3 When the number of resource bits meets the requirement to carry the first SL BSR or cannot fully carry one or any combination of the first SL BSR and UL BSR (that is, the number of first SL BSR bits ⁇ the number of resource bits ⁇ the number of first SL BSR bits + The number of UL BSR bits, the number of first SL BSR bits ⁇ the number of resource bits, the number of resource bits ⁇ the number of first SL BSR bits + the number of UL BSR bits), it is determined that the MAC PDU includes only the first SL BSR.
  • the number of resource bits in the above case c3 is less than the number of resource bits in the cases c1 and c2. At this time, the number of resource bits in the case c3 can fully carry the first SL BSR, but cannot fully carry the UL BSR or the second SL BSR . At this time, the first SL BSR with higher priority is carried first in the MAC PDU. The remaining bits of the MAC PDU are less or no remaining bits, and the less remaining bits can be filled. Therefore, the MAC PDU cannot include the UL BSR and The second SL BSR.
  • the number of resource bits in the above case d is less than the number of resource bits in the case c3. At this time, the number of resource bits in case d cannot fully carry the first SL BSR, so only part of the first SL BSR can be included in the MAC PDU .
  • the above-mentioned part of the first SL BSR may be obtained by intercepting the first SL BSR. Of course, in practical applications, other methods may also be used to obtain the part of the first SL BSR. Of course, the above-mentioned part of the second SL BSR can also be obtained in the manner of the above-mentioned part of the first SL BSR.
  • the setting condition of the embodiment shown in Fig. 2a and the embodiment shown in Fig. 2b may be: when the attribute associated with the SL BSR meets the attribute requirement, it is determined that the setting condition is satisfied.
  • the attributes associated with the above SL BSR may be one or any combination of attributes of the data to be transmitted, attributes of logical channels, attributes of logical channel groups, and attributes of target addresses.
  • the above attribute requirements may be: the attribute requirements of the network configuration, the attribute requirements indicated by the upper layer, or the pre-configured attribute requirements.
  • the attribute requirement for the network configuration may be specifically, as in the network scenario shown in FIG. 1a, the attribute requirement for the network configuration may be the network configuration sent by the eNB to the terminal.
  • the attribute requirement for the upper layer indication may be, as in the network scenario shown in FIG. 1b, the upper layer indication may be the number of resource bits selected by the terminal 1 and the terminal 2 in the resource pool. Then the terminal 1 determines the number of resource bits through an upper layer instruction.
  • the pre-configuration can be the factory settings of the manufacturer, of course, it can also be the use of user-preconfigured attribute requirements.
  • FIG. 3 another embodiment of the present application provides a BSR timer strategy for the embodiment shown in FIG. 2a and the embodiment shown in FIG. 2b. Since the SL BSR of the protocol is different in one embodiment and another embodiment, the original BSR timer strategy needs to be modified. Therefore, another embodiment of this application is the embodiment shown in FIG. 2a and the implementation shown in FIG. 2b. The following steps are added to the example:
  • Step S301 Execute the BSR timer policy matching the first SL BSR.
  • step S301 may be before or after step S201a in the embodiment shown in FIG. 2a, and the execution order of step S301 may be before or after any step in the embodiment shown in FIG. 2b. That is, there is no logical sequence between the foregoing step S301 and any steps in the embodiment shown in FIG. 2a or the embodiment shown in FIG. 2b.
  • the implementation method of step S301 may specifically include:
  • the BSR timer is restarted when the first BSR or part of the first BSR is sent, the first BSR is triggered when the BSR timer expires, and the BSR timer is restarted when a side link grant (SL grant) is received.
  • SL grant side link grant
  • the foregoing triggering of the first BSR includes but is not limited to: triggering the first BSR event.
  • the foregoing triggering of the first BSR event includes but is limited to: the terminal starts or prepares related data of the first BSR; or the foregoing terminal starts or prepares part of the related data of the first BSR.
  • the implementation method of step S301 may specifically include:
  • the BSR timer is restarted when the first BSR or part of the first BSR is sent, and the SL BSR is triggered when the BSR timer expires.
  • the foregoing triggering of the SL BSR may include: triggering of the SL BSR event.
  • the aforementioned SL BSR trigger event includes, but is not limited to: the terminal starts or prepares SL BSR related data; or the terminal starts or prepares part of SL BSR related data. This part of the SL BSR may be the above-mentioned first SL BSR.
  • the next embodiment of the present application provides an SL BSR event processing strategy for the embodiment shown in FIG. 2a and the embodiment shown in FIG. 2b. Since the SL BSR of the protocol is different in one embodiment and another embodiment, the original BSR processing strategy needs to be modified. Therefore, the next embodiment of this application is shown in the embodiment shown in FIG. 2a and shown in FIG. 2b. The following steps are added on the basis of:
  • Step S401 Trigger the first SL BSR
  • the triggering of the first SL BSR in the above step S401 includes but is not limited to: starting or preparing related data of the first BSR; or starting or preparing part of related data of the first BSR.
  • Step S402 After being triggered, cancel the SL BSR event corresponding to the first SL BSR.
  • the above-mentioned two steps of step S401 and step S402 may be before the above-mentioned step S201a, of course, the above-mentioned two steps of step S401 and step S402 may also be after the above-mentioned step S201a.
  • the above-mentioned two steps of step S401 and step S402 may be before the above-mentioned step S202b, of course, the above-mentioned two steps of step S401 and step S402 may also be after the above-mentioned step S202b.
  • Figure 5 provides a device, which may include:
  • the reporting unit 501 is configured to report the side link buffer status report SL BSR in preference to the uplink buffer status report UL BSR.
  • the implementation manner of the foregoing reporting unit 501 performing SL BSR prior to uplink buffer status reporting UL BSR reporting may refer to the manner in the embodiment shown in FIG. 2a or FIG. 2b. I won't repeat it here.
  • the foregoing device may further include:
  • the execution unit 502 is configured to execute the BSR timer strategy matched with the first SL BSR.
  • FIG. 6 provides a side link implementation system, the system includes: a first terminal 601 and a second terminal 602, wherein,
  • the first terminal or the second terminal is configured to report the side link buffer status report SL BSR in preference to the uplink buffer status report UL BSR.
  • a specific embodiment of the present application provides a method for implementing a side link.
  • the method is implemented under the network topology as shown in Fig. 1a.
  • Fig. 1a the communication between terminal 1 and terminal 2 is described above.
  • the protocol can be based on LTE (English: Long Term Evolution, Chinese: Long Term Evolution), and the communication between terminal 1 or terminal 2 and the base station can also be based on LTE.
  • the communication between terminal 1 and terminal 2 is
  • the protocol may also be based on NR (English: new radio, Chinese: new radio), and of course, the protocol for the communication between the terminal 1 or the terminal 2 and the base station may also be based on NR.
  • the method may include the following steps:
  • Step S701a Terminal 1 sends a resource request message to the base station
  • Step S702a The base station sends an authorized resource to the terminal 1.
  • the authorized resource can be used to indicate the number of resource bits that the terminal can send (;
  • step S703a the terminal 1 determines at least one of the following according to the triggered BSR event: the first number of bits required by the first SL BSR x1, the second number of bits required by the SL BSR x2, and the third bit required by the UL BSR Quantity x3;
  • the format of the above SL BSR varies according to different protocol formats. For example, based on the LTE protocol, the format of the SL BSR is shown in Table 1:
  • Destination index 1 represents the destination address 1
  • LCG ID 1 represents the logical channel group identification
  • Buffer Size 1 represents the buffer capacity 1.
  • the format of the SL BSR is shown in Table 2:
  • Dest index in Table 2 above represents the destination address.
  • Step S704a The terminal 1 determines that x2+x3>the number of bits that can be used to carry the BSR in the resource bits ⁇ x1+x3, and generates a MAC PDU, and the MAC PDU preferably includes the first SL BSR, and then the UL BSR;
  • Step S705a Terminal 1 sends the MAC PDU to the base station, and starts the BSR timer;
  • Step S706a The base station sends the MAC PDU response to the terminal 1.
  • step S707a the terminal 1 receives the response of the MAC PDU sent by the base station, if the response includes the SL grant, restarts the BSR timer, and deletes the BSR event.
  • the technical solution provided by another embodiment of the present application sets SL BSR to be reported prior to UL BSR, so that in practical applications, when the number of resource bits is limited, the network side can give priority to obtaining SL BSR, which supports SL data transmission.
  • a specific embodiment of the present application provides a method for implementing a side link based on device communication.
  • the method is implemented under the network topology shown in Figure 1b.
  • the aforementioned terminal 1 and terminal 2 The communication protocol may be based on LTE, and the communication between terminal 1 and terminal 2 described above may be based on NR.
  • the method may include the following steps:
  • Step S701b Terminal 1 sends a resource request message to terminal 2.
  • Step S702b Terminal 2 sends an authorized resource to terminal 1 (the authorized resource may be an authorized resource selected in the resource pool), and the authorized resource may be used to indicate the number of resource bits that the terminal can send;
  • step S703b the terminal 1 determines at least one of the following according to the triggered BSR event: the first number of bits required by the first SL BSR x1, the second number of bits required by the SL BSR x2, and the third number of bits required by the UL BSR x3;
  • Step S704b The terminal 1 determines that x1+x3>the number of bits that can be used to carry the BSR in the resource bits ⁇ x1, and generates a MAC PDU, which preferably includes the first SL BSR, and then includes part of the UL BSR;
  • Step S705b Terminal 1 sends the MAC PDU to terminal 2.
  • Step S706b After terminal 1 receives the side link grant (SL grant) of terminal 2, it deletes the BSR event.
  • SL grant side link grant
  • the technical solution provided by another embodiment of the present application sets SL BSR to be reported prior to UL BSR, so that in practical applications, when the number of resource bits is limited, the network side can give priority to obtaining SL BSR, which supports SL data transmission.
  • the specific implementation manner of the present application also provides an electronic device, including a processor and a memory, the memory is used to store one or more programs and is configured to be executed by the processor, and the program includes any one of Instructions for the steps in the method.
  • the specific embodiment of the present application also provides a computer-readable storage medium that stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute the steps in any of the above methods.
  • the specific embodiments of the present application also provide a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to make a computer execute any of the above-mentioned methods.
  • the disclosed device may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be realized in the form of hardware or software program module.
  • the integrated unit is implemented in the form of a software program module and sold or used as an independent product, it can be stored in a computer readable memory.
  • the technical solution of the present application essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory, A number of instructions are included to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned memory includes: U disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), mobile hard disk, magnetic disk, or optical disk and other media that can store program codes.
  • the program can be stored in a computer-readable memory, and the memory can include: flash disk , ROM, RAM, magnetic disk or CD, etc.

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Abstract

本申请实施例公开了一种侧行链路实现方法及相关产品,该方法包括:将侧行链路缓冲状态报告SL BSR优先于上行链路缓冲状态报告UL BSR上报。本申请提供的技术方案具有实现SL BSR的优先传输,支持了SL数据的优先传输的优点。

Description

一种侧行链路实现方法及相关产品 技术领域
本申请实施例涉及终端技术领域,尤其涉及一种侧行链路实现方法及相关产品。
背景技术
设备到设备通信是基于D2D的一种侧行链路传输技术SL(英文:Sidelink,中文:侧行链路)。与传统的蜂窝系统中通信数据通过基站接收或者发送的方式不同,车联网系统采用终端到终端直接通信的方式,因此具有更高的频谱效率以及更低的传输时延。
现有的网络无法及时获知SL BSR(英文:Sidelink Buffer Status Report,中文:侧行链路缓冲状态报告),影响了SL数据的传输。
发明内容
本申请提供一种侧行链路的实现方法及相关产品,其实现SL BSR的优先传输,支持了SL数据的优先传输。
第一方面,本申请实施例提供了一种基于设备通信的侧行链路实现方法,所述方法包括如下步骤:
将侧行链路缓冲状态报告SL BSR优先于上行链路缓冲状态报告UL BSR上报。
第二方面,提供一种设备,所述设备包括:
上报单元,用于将侧行链路缓冲状态报告SL BSR优先于上行链路缓冲状态报告UL BSR上报。
第三方面,提供一种基于设备通信的侧行链路实现系统,所述系统包括:第一终端以及第二终端,其中,
所述第一终端,用于将侧行链路缓冲状态报告SL BSR优先于上行链路缓 冲状态报告UL BSR上报。
第四方面,提供一种电子设备,包括处理器、存储器,所述存储器用于存储一个或多个程序,并且被配置由所述处理器执行,所述程序包括用于执行第一方面方法中的步骤的指令。
第五方面,提供一种计算机可读存储介质,其存储用于电子数据交换的计算机程序,其中,所述计算机程序使得计算机执行第一方面提供的方法。
第六方面,提供一种计算机程序产品,所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质,所述计算机程序可操作来使计算机执行第一方面提供的方法。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1a是本申请实施例提供的模式A的网络结构示意图;
图1b是本申请实施例提供的模式B的网络结构示意图;
图2a是本申请实施例提供的一种侧行链路实现方法的流程示意图;
图2b是本申请实施例提供的一种侧行链路实现方法的流程示意图;
图3是本申请实施例提供一种BSR计时器策略的流程示意图;
图4是本申请实施例提供的一种事件处理策略的流程示意图。
图5是本申请实施例提供的一种设备的结构示意图。
图6是本申请实施例提供的侧行链路实现系统的结构示意图。
图7a是本申请实施例提供的一种侧行链路实现方法的流程示意图。
图7b是本申请实施例提供的另一种侧行链路实现方法的流程示意图。
具体实施方式
下面结合附图和实施例对本申请作进一步的详细说明。可以理解的是,此处所描述的具体实施例仅仅用于解释本申请,而非对本申请的限定。另外还需 要说明的是,为了便于描述,附图中仅示出了与本申请相关的部分而非全部结构。
本申请实施例所涉及到的电子设备可以包括各种具有无线通信功能的手持设备(如智能手机)、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备,以及各种形式的用户设备(user equipment,UE),移动台(mobile station,MS),终端设备(terminal device)、研发/测试平台、服务器等等。为方便描述,上面提到的设备统称为电子设备。
D2D是一种设备到设备的通信,在3GPP中,D2D分为3个阶段,分别为:
ProSe(英文:Proximity based Service):在Rel-12/13中设备到设备通信,是针对ProSe的场景进行了研究,其主要针对公共安全类的业务。
车联网(V2X):在Rel-14/15中,车联网系统针对车车通信的场景进行了研究,其主要面向相对高速移动的车车、车人通信的业务。
可穿戴设备(FeD2D):在Rel-14中,这个场景对于可穿戴设备通过手机接入网络的场景进行了研究,其主要面向是低移动速度以及低功率接入的场景。
在3GPP的D2D可以分为2种模式构架,模式A构架以及模式B构架。
如图1a所示,模式A构架包括:终端1、终端2以及基站(eNB),其中,该终端1、终端2分别与基站连接,终端1与终端2之间也连接。该终端1与终端2之间的连接链路为SL,终端1与eNB之间的连接链路为DL,终端2与eNB之间的连接链路为DL。
如图1b所示,模式B构架包括:终端1、终端2以及基站(eNB),其中,该终端1、终端2不与基站连接,终端1与终端2之间连接。该终端1与终端2之间的连接链路为SL。
设备到设备通信需要上报BSR(英文:Buffer Status Report,中文:缓冲状态报告),通过BSR上报UE,进行D2D或V2X通信。对于BSR,针对不同的业务可以包括:UL BSR(英文:Up-Link Buffer Status Report,中文:上行缓冲状态报告)和SL BSR(英文:Sidelink Buffer Status Report,中文:侧行链路缓冲状态报告)。
本申请一实施例提供了一种侧行链路实现方法,该方法由终端来实现,该终端可以为如图1a或如图1b所示的终端1或终端2,该方法如图2a所示,包括如下步骤:
步骤S201a、终端将SL BSR优先于UL BSR上报。
上述步骤S201a中的上报对象可能不同。例如,在一个可选的实施例中,执行该步骤S201a的终端位于如图1a所示的构架中,上述步骤S201a的上报的对象可以为终端2或eNB。又如,在另一可选实施例中,执行该步骤S201a的终端位于如图1b所示的构架中,上述步骤S201a的上报的对象可以为终端2。当然在具体实现方式中,并不限于上述上报的具体方式。
本申请提供的一实施例提供的技术方案设置SL BSR优先于UL BSR上报,这样在实际应用中,让网络侧即时获得SL BSR,支持了SL数据的优先传输。
在申请的一实施例中的将SL BSR优先于UL BSR上报可以包括如下情况中的任意一种:
情况A、在MAC PDU(英文:media access control protocol data unit,中文:介质访问控制协议数据单元)中优先包含SL BSR,之后包含UL BSR。
在实际应用中,即确定MAC PDU能够添加BSR的资源中优先添加SL BSR,其次添加UL BSR。需要说明的是,上述在MAC PDU中优先包含SL BSR中的优先是相对于UL BSR优先的,对于MAC PDU中其他数据的优先级与BSR并无影响。例如,该MAC PDU具有优先级比BSR高的数据α,那么数据α的优先级仍然高于SL BSR以及UL BSR。
情况B、在MAC PDU中优先包含第一部分SL BSR,之后包含UL BSR。
上述情况B中的第一部分SL BSR为如情况A中的SL BSR的部分数据。
在一种可选的实施方案中,上述情况B中的第一部分SL BSR可以为第一SL BSR。当然在另一种可选的实施例中,上述情况B中的第一部分SL BSR可以为第一SL BSR以及部分第二SL BSR。
上述第一SL BSR为SL BSR中满足设定条件的数据,上述第二SL BSR为SL BSR中不满足设定条件的数据。上述部分第二SL BSR可以为第二SL  BSR中的部分数据。
情况C、仅在MAC PDU中包含第二部分SL BSR。
上述情况C中的第二部分SL BSR为如情况A中的SL BSR的部分数据,上述第一部分SL BSR可以与第二部分SL BSR为相同的数据。当然在不同的网络情况中,上述第一部分SL BSR也可以与第二部分SL BSR为不相同的数据。
上述情况C中的第二部分SL BSR可以为第一SL BSR。当然情况C中的第二部分SL BSR可以为部分第一SL BSR。上述情况C中的第二部分SL BSR还可以为第一SL BSR、部分第二SL BSR。
情况D、在MAC PDU中优先包含第一SL BSR,然后包含UL BSR,之后包含第二SL BSR。
上述情况D在实际操作中可以为:确定MAC PDU能够添加BSR的资源中优先添加SL BSR,其次添加UL BSR,最后添加第二SL BSR。
情况E、在MAC PDU中优先包含第一SL BSR,然后包含UL BSR,之后包含部分第二SL BSR。
上述情况E在实际操作中可以为:确定MAC PDU能够添加BSR的资源中优先添加SL BSR,其次添加UL BSR,最后添加部分第二SL BSR。
在另一实施例中,本申请实施例提供了一种侧行链路实现方法,该方法由终端来实现,该终端可以为如图1a或如图1b所示的终端1或终端2,该方法如图2b所示,包括如下步骤:
步骤S201b、终端获取资源比特数量;
步骤S202b、终端由该资源比特数量确定SL BSR优先于UL BSR上报。
本申请提供的另一实施例提供的技术方案设置SL BSR优先于UL BSR上报,这样在实际应用中,这样使得资源比特数量受限时,能够让网络侧优先获得SL BSR,支持了SL数据的优先传输。
在另一实施例的一种可选方案中,上述步骤S202b的实现方法具体可以为下述情况中的任意一种:
情况a1、资源比特数量能承载SL BSR和UL BSR(即资源比特数量≥SL BSR比特数+UL BSR比特数),确定在MAC PDU中优先包含SL BSR,之后 包含UL BSR。
上述情况a1针对资源比特数量比较充足的网络状态,此时资源比特数量能够完成承载SL BSR和UL BSR,情况a1优先在MAC PDU承载SL BSR,其次承载UL BSR。
情况a2、资源比特数量能承载SL BSR和UL BSR(即资源比特数量≥SL BSR比特数+UL BSR比特数),确定在MAC PDU中优先包含第一SL BSR,然后包含UL BSR,之后包含第二SL BSR。
上述第一SL BSR、第二SL BSR的定义可以参见一实施例中情况B中描述。
上述情况a2针对资源比特数量比较充足的网络状态,此时资源比特数量能够完成承载SL BSR和UL BSR,情况a1优先在MAC PDU承载第一SL BSR,其次承载UL BSR,最后承载第二SL BSR。此情况a2主要保证优先级别较高的第一SL BSR上报给网络侧,然后保证UL BSR上报给网络侧,最后保证优先级较低的第二SL BSR上报给网络侧。
情况b1、资源比特数量满足承载第一SL BSR和UL BSR或无法完全承载SL BSR和UL BSR任意一个或任意组合时(即第一SL BSR比特数+UL BSR比特数≤资源比特数量<SL BSR比特数+UL BSR比特数、第一SL BSR比特数+UL BSR比特数≤资源比特数量、资源比特数量<SL BSR比特数+UL BSR比特数),确定在MAC PDU中优先包含第一SL BSR,然后包含UL BSR,之后包括部分第二SL BSR。
上述情况b1针对资源比特数量比较充足(即资源比特数量小于情况a1、a2的资源比特数量)的网络状态,此时资源比特数量不能完成承载SL BSR和UL BSR,但是能够完全承载第一SL BSR+UL BSR。情况b1优先在MAC PDU承载第一SL BSR,其次承载UL BSR,由于资源比特数量无法完全承载优先级级别最低的第二SL BSR,因此最后承载部分第二SL BSR。此情况b1主要保证优先级别较高的第一SL BSR上报给网络侧,然后保证UL BSR上报给网络侧,最后保证部分优先级较低的第二SL BSR上报给网络侧。
情况b2、资源比特数量满足承载第一SL BSR和UL BSR或无法完全承载SL BSR和UL BSR任意一个或任意组合时(即第一SL BSR比特数+UL BSR 比特数≤资源比特数量<SL BSR比特数+UL BSR比特数、第一SL BSR比特数+UL BSR比特数≤资源比特数量、资源比特数量<SL BSR比特数+UL BSR比特数),确定在所述MAC PDU中优先包含第一SL BSR,之后包含UL BSR。
上述情况b2中的资源比特数量比情况b1的资源比特数量少的情况,此时虽然b2中的资源比特数量能够完全承载第一SL BSR+UL BSR,但是MAC PDU在完全承载第一SL BSR+UL BSR之后,剩余的比特数量很少或无剩余的比特数量,因此无法承载第二SL BSR。
情况c1、资源比特数量满足承载第一SL BSR或无法完全承载第一SL BSR和UL BSR中的一个或任意组合时(即第一SL BSR比特数≤资源比特数量<第一SL BSR比特数+UL BSR比特数、第一SL BSR比特数≤资源比特数量、资源比特数量<第一SL BSR比特数+UL BSR比特数),确定MAC PDU优先包含第一SL BSR,之后包含部分UL BSR。
上述情况c1中的资源比特数量比情况b2的资源比特数量少的情况,此时情况c1中的资源比特数量完全能够承载第一SL BSR,但是无法完全承载第一SL BSR和UL BSR。此时,在MAC PDU中优先承载优先级较高的第一SL BSR,此时MAC PDU的剩余比特无法完全承载UL BSR,因此在MAC PDU承载部分UL BSR。
情况c2、资源比特数量满足承载第一SL BSR或无法完全承载第一SL BSR和UL BSR中的一个或任意组合时(即第一SL BSR比特数≤资源比特数量<第一SL BSR比特数+UL BSR比特数、第一SL BSR比特数≤资源比特数量、资源比特数量<第一SL BSR比特数+UL BSR比特数),确定MAC PDU优先包含第一SL BSR,之后包含第二SL BSR。
上述情况c2中的资源比特数量比情况b2的资源比特数量少的情况,此时情况c2中的资源比特数量完全能够承载第一SL BSR,但是无法完全承载第一SL BSR和UL BSR,此时,在MAC PDU中优先承载优先级较高的第一SL BSR,此时MAC PDU的剩余比特如果较多,则可以在MAC PDU承载第二SL BSR。
情况c3、资源比特数量满足承载第一SL BSR或无法完全承载第一SL BSR和UL BSR中的一个或任意组合时(即第一SL BSR比特数≤资源比特数量< 第一SL BSR比特数+UL BSR比特数、第一SL BSR比特数≤资源比特数量、资源比特数量<第一SL BSR比特数+UL BSR比特数),确定MAC PDU仅包含第一SL BSR。
上述情况c3中的资源比特数量比情况c1以及情况c2的资源比特数量少的情况,此时情况c3中的资源比特数量完全能够承载第一SL BSR,但是无法完全承载UL BSR或第二SL BSR。此时,在MAC PDU中优先承载优先级较高的第一SL BSR,MAC PDU的剩余比特较少或无剩余比特,可以对较少的剩余比特填充,因此该MAC PDU不能够包含UL BSR以及第二SL BSR。
情况d、资源比特数量无法完全承载第一SL BSR(即资源比特数量<第一SL BSR),确定仅在MAC PDU包含部分第一SL BSR。
上述情况d中的资源比特数量比上述情况c3的资源比特数量少的情况,此时情况d中资源比特数量不能够完全承载第一SL BSR,因此只能仅在MAC PDU包含部分第一SL BSR。
上述部分第一SL BSR可以通过截取第一SL BSR的方式获得,当然在实际应用中,也可以采用其他的方式获得部分第一SL BSR。当然上述部分第二SL BSR也可以采用上述部分第一SL BSR的方式获得。
上述如图2a所示实施例以及如图2b所示实施例的设定条件可以为:当SL BSR关联的属性满足属性要求时,确定满足该设定条件。上述SL BSR关联的属性可以为:待传输数据的属性、逻辑信道的属性、逻辑信道组的属性、目标地址的属性中的一个属性或任意组合。上述属性要求可以为:网络配置的属性要求、上层指示的属性要求或预配置的属性要求。
对于网络配置的属性要求具体可以为,如图1a所示的网络场景,该网络配置的属性要求可以为,eNB向终端发送的网络配置。对于上层指示的属性要求可以为,如图1b所示的网络场景,该上层指示可以为终端1与终端2在资源池中选择的资源比特数量。然后终端1通过一个上层指示确定该资源比特数量。对于预配置的属性要求,该预配置可以为厂家的出厂设置,当然也可以为使用用户预配置的属性要求。
参阅图3,本申请又一实施例提供了一种针对如图2a所示实施例以及如图2b所示实施例的BSR计时器策略。由于在一实施例以及另一实施例中对协 议的SL BSR进行了区别,原有的BSR计时器策略需要修改,因此本申请又一实施例如图2a所示实施例以及如图2b所示实施例的基础上增加了如下步骤:
步骤S301、执行与第一SL BSR匹配的BSR计时器策略。
需要说明的是,上述步骤S301的执行顺序可以在如图2a所示实施例的步骤S201a的之前或之后,上述步骤S301的执行顺序可以在如图2b所示实施例的任意步骤的之前或之后,即上述步骤S301与如图2a所示的实施例或如图2b所示的实施例中的任意步骤的没有逻辑上的先后顺序。
在又一实施例中的一种可选方案中,上述步骤S301的实现方法具体可以包括:
BSR计时器在第一BSR或部分第一BSR发送时重启,在该BSR计时器超时触发第一BSR,在接收到侧行链路授权(SL grant)时该BSR计时器重启。
上述触发第一BSR包括但不限于:触发第一BSR事件。上述触发第一BSR事件包括但限于:终端开始或准备第一BSR的相关数据;或上述终端开始或准备部分第一BSR的相关数据。
在又一实施例中的另一种可选方案中,上述步骤S301的实现方法具体可以包括:
BSR计时器在第一BSR或部分第一BSR发送时重启,在BSR计时器超时时触发SL BSR。
上述触发SL BSR可以包括:触发SL BSR事件。上述触发SL BSR事件包括但不现限于:终端开始或准备SL BSR的相关数据;或终端开始或准备部分SL BSR的相关数据。该部分SL BSR可以为上述第一SL BSR。
参阅图4,本申请下一实施例提供了一种针对如图2a所示实施例以及如图2b所示实施例的SL BSR事件处理策略。由于在一实施例以及另一实施例中对协议的SL BSR进行了区别,原有的BSR处理策略需要修改,因此本申请下一实施例在如图2a所示实施例以及如图2b所示的基础上增加了如下步骤:
步骤S401、触发所述第一SL BSR;
上述步骤S401中的触发第一SL BSR包括但不限于:开始或准备第一BSR 的相关数据;或开始或准备部分第一BSR的相关数据。
步骤S402、触发后,取消所述第一SL BSR对应的SL BSR事件。
上述步骤S401以及步骤S402这两个步骤可以在上述步骤S201a之前,当然上述步骤S401以及步骤S402这两个步骤也可以在上述步骤S201a之后。上述步骤S401以及步骤S402这两个步骤可以在上述步骤S202b之前,当然上述步骤S401以及步骤S402这两个步骤也可以在上述步骤S202b之后。
参阅图5,图5提供了一种设备,该设备可以包括:
上报单元501,用于将侧行链路缓冲状态报告SL BSR优先于上行链路缓冲状态报告UL BSR上报。
上述上报单元501执行SL BSR优先于上行链路缓冲状态报告UL BSR上报的实现方式可以参见如图2a或如图2b所示实施例的方式。这里不再赘述。
可选的,在一种可选实施例中,上述设备还可以包括:
执行单元502,用于执行与第一SL BSR匹配的BSR计时器策略。
上述BSR计时器策略可以参见如图3所示实施例的描述。
参阅图6,图6提供了一种侧行链路实现系统,所述系统包括:第一终端601以及第二终端602,其中,
所述第一终端或第二终端,用于将侧行链路缓冲状态报告SL BSR优先于上行链路缓冲状态报告UL BSR上报。
参阅图7a,本申请具体实施例提供一种侧行链路实现方法,该方法在如图1a所示的网络拓扑结构下实现,如图1a所示,上述终端1与终端2之间通信的协议可以基于LTE(英文:Long Term Evolution,中文:长期演进),上述终端1或终端2与基站之间的通信也可以基于LTE,当然在实际应用中,上述终端1与终端2之间通信的协议还可以基于NR(英文:new radio,中文:新空口),当然上述终端1或终端2与基站之间的通信的协议也可以基于NR。如图7a所示,该方法可以包括如下步骤:
步骤S701a、终端1向基站发送资源请求消息;
步骤S702a、基站向终端1发送授权资源,该授权资源可以用于指示终端可以发送的资源比特数量(;
步骤S703a、终端1根据已触发的BSR事件,确定以下至少一项:第一 SL BSR所需的第一比特数量x1、SL BSR所需的第二比特数量x2以及UL BSR所需的第三比特数量x3;
上述SL BSR的格式依据不同的协议格式有所不同,例如,基于LTE协议时,该SL BSR的格式如表1所示:
表1:
Figure PCTCN2019094627-appb-000001
其中,Destination index 1表示目的地址1,LCG ID 1表示逻辑信道组标识,该Buffer Size 1表示缓冲容量1。
如基于NR协议时,该SL BSR的格式如表2所示:
表2:
Figure PCTCN2019094627-appb-000002
上述表2中的Dest index表示目的地址。
步骤S704a、终端1确定x2+x3>资源比特中可以用于承载BSR的比特数量≥x1+x3,生成MAC PDU,在该MAC PDU中优先包含第一SL BSR,然后包含UL BSR;
步骤S705a、终端1向基站发送该MAC PDU,启动BSR计时器;
步骤S706a、基站向终端1下发该MAC PDU的响应;
步骤S707a、终端1接收基站发送的该MAC PDU的响应,如该响应包括SL grant,对该BSR计时器重启,并删除该BSR事件。
本申请提供的另一实施例提供的技术方案设置SL BSR优先于UL BSR上报,这样在实际应用中,这样使得资源比特数量受限时,能够让网络侧优先获得SL BSR,支持了SL数据的传输。
参阅图7b,本申请具体实施例提供一种基于设备通信的侧行链路实现方法,该方法在如图1b所示的网络拓扑结构下实现,如图1b所示,上述终端1与终端2之间通信的协议可以基于LTE,上述终端1与终端2之间的通信可以基于NR。如图7b所示,该方法可以包括如下步骤:
步骤S701b、终端1向终端2发送资源请求消息;
步骤S702b、终端2向终端1发送授权资源(该授权资源可以为资源池中选择的授权资源),该授权资源可以用于指示终端可以发送的资源比特数量;
步骤S703b、终端1根据已触发BSR事件,确定以下至少一项:第一SL BSR所需的第一比特数量x1、SL BSR所需的第二比特数量x2以及UL BSR所需的第三比特数量x3;
步骤S704b、终端1确定x1+x3>资源比特中可以用于承载BSR的比特数量≥x1,生成MAC PDU,该MAC PDU优先包含第一SL BSR,然后包含部分UL BSR;
步骤S705b、终端1将MAC PDU发送至终端2;
步骤S706b、终端1接收到终端2的侧行链路授权(SL grant)后,删除该BSR事件。
本申请提供的另一实施例提供的技术方案设置SL BSR优先于UL BSR上报,这样在实际应用中,这样使得资源比特数量受限时,能够让网络侧优先获得SL BSR,支持了SL数据的传输。
本申请具体实施方式还提供一种电子设备,包括处理器、存储器,所述存储器用于存储一个或多个程序,并且被配置由所述处理器执行,所述程序包括用于执行上述任一方法中的步骤的指令。
本申请具体实施方式还提供一种计算机可读存储介质,存储用于电子数据交换的计算机程序,其中,所述计算机程序使得计算机执行上述任一方法中的步骤。
本申请具体实施方式还提供一种计算机程序产品,所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质,所述计算机程序可操作来使计算机执行上述任一方法。
需要说明的是,对于前述的各方法实施例,为了简单描述,故将其都表述为一系列的动作组合,但是本领域技术人员应该知悉,本申请并不受所描述的动作顺序的限制,因为依据本申请,某些步骤可以采用其他顺序或者同时进行。其次,本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作和模块并不一定是本申请所必须的。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中,应该理解到,所揭露的装置,可通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件程序模块的形式实现。
所述集成的单元如果以软件程序模块的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储器中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或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器中,包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储器包括:U盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成,该程序可以存储于一计算机可读 存储器中,存储器可以包括:闪存盘、ROM、RAM、磁盘或光盘等。
以上对本申请实施例进行了详细介绍,本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想;同时,对于本领域的一般技术人员,依据本申请的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种侧行链路实现方法,其特征在于,所述方法包括:
    将侧行链路缓冲状态报告SL BSR优先于上行链路缓冲状态报告UL BSR上报。
  2. 根据权利要求1所述的方法,其特征在于,所述方法具体包括:
    在介质访问控制协议数据单元MAC PDU中优先包含SL BSR,之后包含UL BSR;
    或在MAC PDU中优先包含第一部分SL BSR,之后包含UL BSR;
    或仅在MAC PDU中包含第二部分SL BSR。
  3. 根据权利要求2所述的方法,其特征在于,所述第一部分SL BSR、UL BSR具体包括:
    第一SL BSR、UL BSR;
    或第一SL BSR、部分第二SL BSR、UL-BSR;
    所述第一SL BSR为满足设定条件的SL BSR,所述第二SL BSR为不满足所述设定条件的SL BSR。
  4. 根据权利要求2所述的方法,其特征在于,所述第二部分SL BSR具体包括:
    第一SL BSR;
    或部分第一SL BSR;
    或第一SL BSR、部分第二SL BSR;
    所述第一SL BSR为满足所述设定条件的SL BSR。
  5. 根据权利要求1所述的方法,其特征在于,所述所述方法具体包括:
    在MAC PDU中优先包含第一SL BSR,然后包含UL BSR,之后包含第二SL BSR;
    或在MAC PDU中优先包含第一SL BSR,然后包含UL BSR,之后包含 部分第二SL BSR;
    所述第一SL BSR为满足所述设定条件的SL BSR,所述第二SL BSR为不满足所述设定条件的SL BSR。
  6. 根据权利权利要求1-5任意一项所述的方法,其特征在于,所述方法具体包括:
    在资源比特数量能承载SL BSR和UL BSR的情况下,确定在所述MAC PDU中优先包含SL BSR,之后包含UL BSR;
    或者在所述MAC PDU中优先包含第一SL BSR,然后包含UL BSR,之后包含第二SL BSR;
    所述第一SL BSR为满足所述设定条件的SL BSR,所述第二SL BSR为不满足所述设定条件的SL BSR。
  7. 根据权利要求1-5任意一项所述的方法,其特征在于,所述方法具体包括:
    在资源比特数量能承载第一SL BSR以及UL BSR和/或无法完全承载SL BSR以及UL BSR的情况下,
    确定在所述MAC PDU中优先包含第一SL BSR,然后包含UL BSR,之后包含部分第二SL BSR;
    或者在所述MAC PDU中优先包含第一SL BSR,之后包含UL BSR;
    所述第一SL BSR为满足所述设定条件的SL BSR,所述第二SL BSR为不满足所述设定条件的SL BSR。
  8. 根据权利要求1-5任意一项所述的方法,其特征在于,所述方法具体包括:
    在资源比特数量能承载第一SL BSR和/或无法完全承载第一SL BSR以及UL BSR的情况下,
    确定所述MAC PDU优先包含第一SL BSR,之后包含部分UL BSR;
    或者确定所述MAC PDU优先包含第一SL BSR,之后包含第二SL BSR;
    或者确定所述MAC PDU优先包含第一SL BSR,之后包含部分第二SL BSR;
    或者确定所述MAC PDU仅包含第一SL BSR;
    所述第一SL BSR为满足所述设定条件的SL BSR,所述第二SL BSR为不满足所述设定条件的SL BSR。
  9. 根据权利要求1-5任意一项所述的方法,其特征在于,所述方法具体包括:
    在资源比特数量无法完全承载第一SL BSR的情况下,确定仅在所述MAC PDU包含部分第一SL BSR;所述第一SL BSR为满足所述设定条件的SL BSR。
  10. 根据权利要求3-9任意一项所述的方法,其特征在于,所述设定条件具体包括,所述SL BSR关联的属性满足属性要求;所述SL BSR关联的属性包括:
    待传输数据的属性、逻辑信道的属性、的逻辑信道组的属性、目标地址的属性中的一个属性或任意组合。
  11. 根据权利要求10所述的方法,其特征在于,所述属性要求为网络配置的属性要求、上层指示的属性要求或预配置的属性要求。
  12. 根据权利要求1-11任意一项所述的方法,其特征在于,所述方法还包括:
    执行与第一SL BSR匹配的BSR计时器策略。
  13. 根据权利要求12所述的方法,其特征在于,所述BSR计时器策略具体包括:
    所述BSR计时器在第一BSR或部分第一BSR发送时重启,在所述BSR计时器超时触发所述第一BSR,在接收到侧行链路授权SL grant时重启;
    所述第一SL BSR为满足所述设定条件的SL BSR。
  14. 根据权利要求12所述的方法,其特征在于,所述BSR计时器策略具体包括:
    所述BSR计时器在第一BSR或部分第一BSR发送时重启,在所述BSR计时器超时时触发SL BSR。
  15. 根据权利要求1-9任意一项所述的方法,其特征在于,所述方法还包括:
    在触发所述第一SL BSR时,取消所述第一SL BSR对应的SL BSR事件。
  16. 一种设备,其特征在于,所述设备包括:
    上报单元,用于将侧行链路缓冲状态报告SL BSR优先于上行链路缓冲状态报告UL BSR上报。
  17. 根据权利要求16所述的设备,其特征在于,
    由资源授权数量确定所述SL BSR优先于所述UL BSR上报。
  18. 一种电子设备,其特征在于,包括处理器、存储器,所述存储器用于存储一个或多个程序,并且被配置由所述处理器执行,所述程序包括用于执行如权利要求1-15任意一项所述的方法中的步骤的指令。
  19. 一种计算机可读存储介质,其特征在于,存储用于电子数据交换的计算机程序,其中,所述计算机程序使得计算机执行如权利要求1-15任意一项所述的方法。
  20. 一种计算机程序产品,其特征在于,所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质,所述计算机程序可操作来使计算机执行如权利要求1-15任意一项所述的方法。
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