WO2019062594A1 - 通信方法、终端设备和接入网设备 - Google Patents

通信方法、终端设备和接入网设备 Download PDF

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Publication number
WO2019062594A1
WO2019062594A1 PCT/CN2018/106173 CN2018106173W WO2019062594A1 WO 2019062594 A1 WO2019062594 A1 WO 2019062594A1 CN 2018106173 W CN2018106173 W CN 2018106173W WO 2019062594 A1 WO2019062594 A1 WO 2019062594A1
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WO
WIPO (PCT)
Prior art keywords
bsr
format
terminal device
amount
lcg
Prior art date
Application number
PCT/CN2018/106173
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English (en)
French (fr)
Inventor
于海凤
曹振臻
熊新
许斌
Original Assignee
华为技术有限公司
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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18863376.2A priority Critical patent/EP3576454B1/en
Publication of WO2019062594A1 publication Critical patent/WO2019062594A1/zh
Priority to US16/653,542 priority patent/US11082884B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present application relates to the field of communications and, more particularly, to a communication method, a terminal device, and an access network device.
  • the number of logical channel groups (LCGs) is four.
  • the buffer status report (BSR) format of the byte length can be used to report the amount of the uplink buffer data of the LCG.
  • the BSR format is used to report the amount of uplink buffer data of one LCG, as in the existing communication system, and the BSR format is used to indicate the number of bits of the LCG.
  • the number of bits used to indicate the amount of upstream buffer data is reduced. If the number of bits is too small, the terminal cannot accurately report the excessive amount of upstream buffer data, which affects the reporting integrity of the upstream buffer data.
  • the communication method and the terminal device provided by the application can improve the reporting integrity of the uplink buffer data amount of the LCG.
  • the present application provides a communication method of a BSR.
  • the communication method includes: determining, by the terminal device, the number of the logical channel groups LCG that currently have the cached data to be reported; and determining, by the terminal device, that only one LCG has the data to be reported, determining a BSR format from the plurality of BSR formats, As the first target BSR format, the multiple BSR formats are used by the terminal device to report different formats used by different BSRs according to the range of the uplink buffer data amount; the terminal device uses the first target BSR format to The access network device sends a target BSR, where the target BSR is used to indicate the amount of uplink buffer data of the one LCG.
  • the terminal device can report the amount of the uplink buffer data of the one LCG by selecting an appropriate BSR format from the multiple BSR formats, thereby improving the reporting integrity.
  • the multiple BSR formats include a first BSR format and a second BSR format, where the first BSR format is determined by the terminal device according to a first data amount threshold The amount of the buffered data is reported to the format used by the BSR, and the second BSR format is a format used by the terminal device to report the BSR according to the amount of buffered data in the second data amount threshold.
  • the terminal device determines a BSR format from a plurality of BSR formats, and the first target BSR format includes: when the uplink buffer data volume of the one LCG is less than or equal to the first data volume threshold, Determining, by the terminal device, the first BSR format as the first target BSR format; when the uplink buffer data volume of the one LCG is greater than the first data volume threshold, the terminal device determines the second BSR format For the first target BSR format.
  • the BSR sent by using the first BSR format occupies one byte
  • the BSR sent by using the second BSR format occupies two or two. The above bytes.
  • the first field used to indicate the reported uplink buffer data amount in the BSR sent by using the first BSR format occupies 5 bits
  • the second field in the BSR sent by the second BSR format for indicating the amount of uplink buffer data reported is occupied by 8 bits.
  • the BSR sent by using the first BSR format and the BSR sent by using the second BSR format occupy one byte.
  • the first field used to indicate the reported uplink buffer data amount in the BSR sent by using the first BSR format, and using the second BSR The second field in the BSR sent by the format for indicating the amount of uplink buffer data reported is occupied by 5 bits.
  • the first BSR format is a short BSR format
  • the second BSR format is a long BSR format
  • the first BSR format and the second BSR format are both short BSR formats.
  • the multiple BSR formats include a third BSR format and a fourth BSR format, and the terminal device determines that multiple LCGs are to be reported to the uplink cache data. Whether the current uplink resource is sufficient for reporting the amount of the uplink buffer data of the multiple LCGs; if the current uplink resource is insufficient for reporting the buffered data volume information of the multiple LCGs, if the current uplink resource amount can only accommodate One byte, the terminal device determines the third BSR format as the second target BSR format, otherwise, the terminal device determines the fourth BSR format as the second target BSR format; the terminal device uses The second target BSR format sends a truncated BSR to the access network device, where the truncated BSR includes an uplink buffer data amount of a part of the plurality of LCGs; wherein the third BSR format and the The fourth BSR format is a truncated BSR format, where the truncated BSR format is used
  • the fourth BSR format may be the same as the flexible long BSR format.
  • the application provides a communication method of a BSR, including:
  • the access network device receives the target BSR sent by the terminal device in the first target BSR format, where the target BSR is used to indicate the amount of uplink buffer data of the one LCG;
  • the first target BSR format is a BSR format determined by the terminal device to determine that only one logical channel group LCG has a to-be-advertised cache data, and the multiple BSR formats are The terminal device reports multiple formats used by different BSRs according to different ranges of uplink buffer data.
  • the access network device can receive the BSR that is sent by the terminal device flexibly, and can improve the reporting integrity of the uplink cache data.
  • the multiple BSR formats include a first BSR format and a second BSR format, where the first BSR format is determined by the terminal device according to a first data amount threshold The amount of the buffered data is reported to the format used by the BSR, and the second BSR format is a format used by the terminal device to report the BSR according to the amount of buffered data in the second data amount threshold.
  • the BSR sent by using the first BSR format occupies one byte
  • the BSR sent by using the second BSR format occupies two or two. The above bytes.
  • the first field used to indicate the reported uplink buffer data amount in the BSR sent by using the first BSR format occupies 5 bits
  • the second field in the BSR sent by the second BSR format for indicating the amount of uplink buffer data reported is occupied by 8 bits.
  • the BSR sent by using the first BSR format and the BSR sent by using the second BSR format occupy one byte.
  • the first field used to indicate the reported uplink buffer data amount in the BSR sent by using the first BSR format, and using the second BSR The second field in the BSR sent by the format for indicating the amount of uplink buffer data reported is occupied by 5 bits.
  • the first BSR format is a short BSR format
  • the second BSR format is a long BSR format
  • the first BSR format and the second BSR format are both short BSR formats.
  • the multiple BSR formats include a third BSR format and a fourth BSR format
  • the communications method further includes:
  • the second target BSR format is the third BSR format. Otherwise, the second target BSR format is the fourth BSR format;
  • the third BSR format and the fourth BSR format are both truncated BSR formats, the truncated BSR format is a format used by the terminal device to send a truncated BSR, and the truncated BSR is used to report the multiple LCGs.
  • the present application provides a communication method of a BSR.
  • the communication method includes: determining, by the terminal device, that the logical channel group LCG that is to be reported to be buffered data satisfies at least one of the following conditions: triggering an uplink buffer data amount of the LCG that is not reported between the time when the BSR is reported and the current time; The time interval between the time when the device last reported the amount of the uplink buffer data of the LCG and the current time is greater than or equal to the time threshold; the amount of the uplink buffer data of the LCG reported by the terminal device and the current LCG The data amount difference between the uplink buffer data amounts is greater than or equal to the data amount threshold; the maximum priority of the logical channel LCH in the LCG is greater than or equal to the priority threshold; the terminal device sends the BSR to the access network device The BSR is used to indicate the current amount of uplink buffer data of the LCG.
  • the terminal device reports the amount of uplink buffer data to the access network device under certain conditions, thereby avoiding unnecessary reporting, thereby saving resources.
  • the terminal determines that the amount of the uplink buffer data of the LCG is not reported between the time when the BSR is reported and the current time, and the terminal device determines the indication information set.
  • the indication information of the LCG is not included, it is determined that the amount of the uplink buffer data of the LCG is not reported between the time when the BSR is reported and the current time, and the indication information in the indication information set is used to indicate that the uplink is reported.
  • the LCG of the amount of cached data
  • the communication method further includes: the terminal device is in the indication information set The indication information of the amount of uplink buffer data of the LCG is reported.
  • the application provides a terminal device.
  • the terminal device comprises means for performing the communication method of the first aspect or any of the possible implementations of the first aspect.
  • the modules included in the terminal device can be implemented by software and/or hardware.
  • the application provides an access network device.
  • the access network device comprises means for performing the communication method of any of the possible implementations of the second aspect or the second aspect.
  • the modules included in the access network device can be implemented by software and/or hardware.
  • the application provides a terminal device.
  • the terminal device comprises means for performing the communication method of any of the possible implementations of the third aspect or the third aspect.
  • the modules included in the terminal device can be implemented by software and/or hardware.
  • the application provides a terminal device.
  • the terminal device includes a processor and a transmitter.
  • the processor is used to execute the program.
  • the processor and the transmitter implement the communication method of any of the possible implementations of the first aspect or the first aspect when the processor executes the code.
  • the terminal device may further include a receiver, where the receiver is configured to receive information sent by the access network.
  • the terminal device may further include a memory for storing code executed by the processor.
  • the application provides an access network device.
  • the access network device includes a processor and a receiver.
  • the processor is used to execute the program.
  • the processor and the receiver implement the communication method of any of the possible implementations of the second aspect or the second aspect when the processor executes the code.
  • the access network device may further include a transmitter, where the transmitter is configured to send information to the terminal device.
  • the terminal device may further include a memory for storing code executed by the processor.
  • the application provides a terminal device.
  • the terminal device includes a processor and a transmitter.
  • the processor is used to execute the program.
  • the processor and the transmitter implement the communication method of any of the possible implementations of the third aspect or the third aspect when the processor executes the code.
  • the terminal device may further include a receiver, where the receiver is configured to receive information sent by the access network.
  • the terminal device may further include a memory for storing code executed by the processor.
  • the application provides a computer readable storage medium.
  • Program code for execution by the terminal device is stored in the computer readable storage medium.
  • the program code includes instructions for performing the communication method of the first aspect or any of the possible implementations of the first aspect.
  • the application provides a computer readable storage medium.
  • Program code for execution by the terminal device is stored in the computer readable storage medium.
  • the program code includes instructions for performing the communication method of any of the possible implementations of the second aspect or the second aspect.
  • the application provides a computer readable storage medium.
  • Program code for execution by the terminal device is stored in the computer readable storage medium.
  • the program code includes instructions for performing the communication method of any of the possible implementations of the third aspect or the third aspect.
  • the application provides a computer program product comprising instructions.
  • the terminal device is caused to perform the communication method in any one of the possible implementations of the first aspect or the first aspect.
  • the application provides a computer program product comprising instructions.
  • the access network device is caused to perform the communication method in any one of the possible implementations of the second aspect or the second aspect.
  • the application provides a computer program product comprising instructions.
  • the terminal device is caused to perform the communication method in any one of the possible implementations of the third aspect or the third aspect.
  • the present application provides a chip system including a processor for supporting a terminal device or an access network device to implement the functions involved in the above corresponding aspects, for example, generating or processing the above communication method The information involved.
  • the chip system further comprises a memory for storing necessary program instructions and data of the terminal device or the access network device.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • FIG. 1 is a schematic architectural diagram of a communication system to which a communication method of an embodiment of the present application can be applied;
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a detailed schematic diagram of S220 in the communication method shown in FIG. 2;
  • FIG. 4 is a schematic structural diagram of a BSR format according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a BSR format according to another embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a BSR format according to another embodiment of the present application.
  • FIG. 7 is a schematic diagram of a BSR according to another embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of an access network device according to another embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a terminal device according to another embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a terminal device according to another embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of an access network device according to another embodiment of the present application.
  • 15 is a schematic structural diagram of a terminal device according to another embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of a BSR format according to another embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a BSR format according to another embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a BSR format according to another embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of a BSR format according to another embodiment of the present application.
  • FIG. 20 is a schematic structural diagram of a BSR format according to another embodiment of the present application.
  • FIG. 21 is a schematic structural diagram of a BSR format according to another embodiment of the present application.
  • FIG. 22 is a schematic structural diagram of a BSR format according to another embodiment of the present application.
  • 25 is a schematic structural diagram of a terminal device according to another embodiment of the present application.
  • FIG. 26 is a schematic structural diagram of an access network device according to another embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a communication system to which a communication method of an embodiment of the present application can be applied.
  • the access network device 110 and the terminal 120 may be included in the communication system shown in FIG. 1.
  • FIG. 1 One example of the communication system shown in FIG. 1 is a 5G communication system. It should be understood that the embodiment of the present application is not limited to the system architecture shown in FIG. 1. In addition, the device in FIG. 1 may be hardware, functionally divided software, or a combination of the two.
  • the access network device 110 may specifically be a Radio Access Network (RAN) device.
  • RAN Radio Access Network
  • an access network device 110 is a base station (BS).
  • BS base station
  • a base station also referred to as a base station device, is a device that accesses a terminal to a wireless network, including but not limited to: a transmission reception point (TRP), a 5G node B (gNB), and an evolved node B ( Evolved Node B, eNB), radio network controller (RNC), node B (node B, NB), base station controller (BSC), base transceiver station (BTS), A home base station (for example, home evolved node B, or home node B, HNB), a base band unit (BBU), or a Wifi access point (AP), or a small base station device (pico).
  • TRP transmission reception point
  • gNB 5G node B
  • eNB evolved node B
  • RNC radio network controller
  • node B node B
  • BSC base station controller
  • BTS base transceiver station
  • a home base station for example, home evolved node B, or home node B, HNB
  • BBU base band unit
  • base station is not limited in the embodiment of the present application.
  • the names of devices with base station functions may vary.
  • base stations the foregoing devices for providing wireless communication functions to terminals are collectively referred to as base stations.
  • the terminal device 120 can be a user equipment (UE).
  • the terminal device 120 can communicate with one or more core networks (CNs) via the access network device 110.
  • a terminal may be referred to as an access terminal, a terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a radio access network device, a user agent, or a user device.
  • the terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication function.
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application. It should be understood that FIG. 2 illustrates steps or operations of the communication method, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the operations in FIG. 2.
  • the communication method shown in FIG. 2 may include S210, S220, and S230.
  • the terminal device determines the number of the LCGs that currently have the cached data to be reported. In other words, the terminal device determines that there are currently several LCGs that need to report the amount of cached data to the access network device.
  • the terminal device determines that only one LCG has a data to be reported, and the terminal device determines a BSR format from the multiple BSR formats, as the first target BSR format, and the amount of the uplink cache data reported by the terminal according to the multiple BSR formats.
  • the range is different.
  • BSRs using these multiple BSR formats are used to report the amount of upstream buffer data in different data volume ranges.
  • the number of bits used to indicate the amount of uplink buffer data in the BSRs of different BSR formats in the multiple BSR formats is different, or the BSR in different BSR formats in the multiple BSR formats is used to indicate the amount of uplink buffer data.
  • the number of bits is the same, but the corresponding buffer size levels are different.
  • the terminal can determine a BSR format from the multiple BSR formats as the first target BSR format for reporting the uplink buffer data amount of the one LCG, and the BSRs using the multiple BSR formats are respectively used to indicate different data.
  • the amount of uplink buffered data in the range of the amount of data, so that the terminal can determine the appropriate BSR format to report the amount of uplink buffer data of the LCG, thereby improving the reporting integrity of the uplink buffered data volume of the LCG.
  • the range of the amount of the uplink buffer data reported by the terminal device according to the multiple BSR formats is different, and may be the maximum uplink buffer that the terminal can report when the terminal device reports the amount of the uplink buffer data by using any one of the multiple BSR formats.
  • the amount of data is different from the maximum amount of upstream buffer data that can be reported when the terminal device uses other BSR formats in the multiple BSR formats.
  • the amount of the uplink buffer data that can be reported by the terminal device is the amount of the uplink buffer data in the first data amount threshold, that is, The maximum amount of uplink buffer data that can be reported by the terminal is equal to the first data volume threshold.
  • the amount of uplink buffer data that can be reported by the terminal device is the uplink buffer data in the second data volume threshold.
  • the quantity, that is, the maximum amount of uplink buffer data that the terminal device can report is equal to the second data amount threshold.
  • the first data amount threshold may be smaller than the second data amount threshold.
  • One example of the first data amount threshold is 1326 bytes, and one example of the second data amount threshold is 15000 bytes.
  • the BSR format of the maximum amount of uplink buffer data that can be reported as the amount of the uplink buffer data in the first data amount threshold is referred to as the second BSR
  • the maximum uplink buffer data amount that can be reported is the second data amount threshold.
  • the BSR format of the amount of upstream buffer data is referred to as the second BSR format.
  • S220 When the multiple BSR formats in the S220 include the first BSR format and the second BSR format, as shown in FIG. 3, one possible implementation manner of S220 is S221.
  • the terminal device determines that only one LCG has a data to be reported, if the amount of the uplink buffer data of the LCG is less than or equal to the first data amount threshold, the terminal device determines the first BSR format as the first target BSR format; The amount of the uplink buffer data is greater than the first data amount threshold, and the terminal device determines the second BSR format as the first target BSR format.
  • the first BSR format is used to report the amount of uplink buffer data in 1326 bytes
  • the second BSR format is used to report the amount of uplink buffer data in 15000 bytes, if the amount of uplink buffer data of the LCG is less than or equal to 1326 words.
  • the terminal device determines the first BSR format as the first target BSR format. If the uplink buffer data amount of the LCG is greater than 1326 bytes, the terminal device determines the second BSR format as the first target BSR format.
  • the first data volume threshold may be pre-stored on the terminal device, that is, the first data volume threshold pre-configured according to the communication protocol on the terminal device; or, after the terminal device receives the configuration information sent by the access network device, The first data amount threshold in the configuration information is stored.
  • the configuration message includes a system message, an RRC message, a MAC CE, or a PDCCH.
  • the terminal device can receive the access network device through a system message, a radio resource control (RRC) message, a media access control (MAC) layer control unit (CE), or a physical downlink control channel (The configuration information transmitted by the physical downlink control channel, PDCCH, or the like.
  • RRC radio resource control
  • MAC media access control
  • CE layer control unit
  • PDCCH Physical downlink control channel
  • the following describes in detail how the terminal device indicates different data amount ranges according to the first BSR format and the second BSR format.
  • the BSR sent by the terminal device in the first BSR format and the BSR sent by the terminal device in the second BSR format may use different numbers of bits to indicate the amount of uplink buffer data of the LCG.
  • the BSR transmitted by the terminal device using the first BSR format may use 5 bits to indicate the amount of uplink buffer data of the LCG
  • the BSR transmitted by the terminal device using the second BSR format may use 8 bits to indicate the amount of uplink buffer data of the LCG. Since the maximum value that can be represented by 8 bits is larger than the maximum value that can be represented by 5 bits, the maximum uplink buffer data amount that the terminal can use to transmit the BSR in the second BSR format can be indicated by the BSR sent by the terminal using the first BSR format.
  • the maximum amount of upstream cache data is large. That is to say, the second data amount threshold is larger than the first data amount threshold.
  • the example of the BSR in the first BSR format is shown in FIG. 4 when the terminal device uses the first BSR format to send the BSR and the terminal uses the second BSR format to send a different number of bits in the BSR to indicate the amount of the uplink buffer data of the LCG. .
  • the BSR examples of the second BSR format are shown in Figures 5 and 6, respectively.
  • the BSR of the first BSR format shown in FIG. 4 occupies one byte.
  • the first field in the first BSR format is used to indicate a field of the LCG uplink buffer data amount, and the first field occupies 5 bits.
  • the 5 bits used to indicate the amount of uplink buffer data in FIG. 4 are merely examples, and the present application should not be limited, such as 6 bits, 7 bits, or 8 bits.
  • the position of 5 bits for indicating the amount of uplink buffer data in FIG. 4 is also only an example, and the position of these bits is not limited by the embodiment of the present application.
  • the first 5 bits in the BSR of the first BSR format may be used to indicate the amount of uplink buffer data of the LCG.
  • another 3 bits in one byte occupied by the BSR of the first BSR format may be used to indicate the LCG.
  • the 3 bits may indicate which resource request configuration group is reported by indicating the identifier of the LCG or the resource configuration request (SR) configuration information (config) indicating the LCG.
  • SR resource configuration request
  • config configuration information
  • the BSR of the first BSR format shown in FIG. 4 may be a short BSR of a byte length.
  • the BSR of the second BSR format shown in FIG. 5 occupies two bytes.
  • the field in the two bytes for indicating the amount of uplink buffer data of the LCG is the second field, and the second field may be 8 bits.
  • the 8 bits used to indicate the amount of uplink buffer data in FIG. 5 are only examples, and the present application should not be limited, such as 6 bits, 7 bits, and the like.
  • the 8-bit position used to indicate the amount of uplink buffer data in FIG. 8 is also only an example, and the position of these bits is not limited in the embodiment of the present application.
  • the first 8 bits in the BSR of the second BSR format may be used to indicate the amount of uplink buffer data of the LCG.
  • the second BSR format in FIG. 5 includes a BS reporting identifier, a BS corresponding to the BS reporting identifier, and a reserved bit.
  • the BS reporting identifier may be a logical channel group LCG identifier, or may be an SR configuration identifier or the like.
  • the BS reporting identifier occupies 3 bits, and the BS corresponding to the BS reporting identifier occupies 8 bits, and the reserved bit occupies 5 bits.
  • the BSR of the second BSR format shown in FIG. 5 may be a long BSR of two bytes in length, for example, a flexible long BSR format.
  • the BSR of the second BSR format shown in FIG. 6 also occupies two bytes. A total of 8 bits in these two bytes are used to indicate the amount of upstream buffer data of the LCG.
  • the first 8 bits of the two bytes occupied by the BSR of the second BSR format in FIG. 6 are used to indicate the LCG, and there is no reserved bit.
  • the BSR of the second BSR format shown in FIG. 6 is used to indicate that 8 bits of the LCG can indicate which LCG is reported by means of a bitmap. For example, when there are a total of 8 LCGs, the value of the 3rd bit of the 8 bits is "1", and the other bits are all "0", indicating that the BSR of the second BSR format reports the uplink buffer of the third LCG. The amount of data.
  • the BSR of the second BSR format shown in FIG. 6 may be a long BSR of two bytes in length, for example, a BSR of a flexible long BSR format.
  • the BSR of the first BSR format may include a first field, where the first field is used to indicate the amount of the uplink buffer data that is reported, and the second field is used to indicate the uplink buffer data that is reported. the amount.
  • the first field includes 5 bits
  • the second field includes 6 bits
  • the first data amount threshold is 1326 bytes
  • the second data amount threshold is greater than 15000 bytes.
  • the first BSR is introduced in conjunction with Table 1. How does the first field in the BSR of the format and the second field in the BSR of the second BSR format indicate the amount of upstream buffer data of the LCG.
  • the buffer size (BS) in Table 1 indicates the uplink buffer data amount range, the unit of the BS is byte; the index (index) indicates an indirect indication of the amount of buffered uplink buffer data, and the index corresponds to the BS domain representation in the BSR. The corresponding byte value.
  • the first BSR format can be used. Since the index corresponding to the range "967 ⁇ BS ⁇ 1132" to which the 1000 bytes belong in Table 1 is 31, the first field in the BSR of the first BSR may be "11111".
  • the second BSR format can be used. Since the index corresponding to the range "2127 ⁇ BS ⁇ 2490" to which the 2300 bytes belong in Table 1 is 35, the second field in the BSR of the second BSR may be "100011".
  • Table 1 uplink cache data amount mapping table
  • the uplink buffer data mapping table corresponding to the first BSR format may be part of the cache size table corresponding to the second BSR format.
  • the first BSR format can share the same buffer table (BS table) with the second BSR format, except that the first BSR format can only indicate a part of the content in the cache size table.
  • BS table buffer table
  • the BS table may be specified by a protocol, or may be configured by an access network device.
  • Different TB granularity or Bandwidth Part (BWP) has corresponding BS table, and the correspondence between BWP and BS table can be pre-configured.
  • the BWP can be understood as a part of the carrier, and is composed of a plurality of consecutive physical resource blocks (PRBs).
  • PRBs physical resource blocks
  • the UE can adopt a narrower BWP when the power is saved or does not require too much bandwidth.
  • the TB granularity or the BWP corresponds to different BS tables, and the UE adopts the corresponding BS table.
  • the same number of bits may be used in the BSR of the first BSR format and the BSR of the second BSR format to indicate the amount of uplink buffer data of the LCG.
  • the BSR of the first BSR format and the BSR of the second BRS format may both occupy 1 byte.
  • both the first BSR format BSR and the second BRS format BSR occupy 1 byte
  • both the first BSR format and the second BRS format may be in the short BSR format.
  • both the BSR of the first BSR format and the BSR of the second BRS format occupy 1 byte
  • 5 bits may be used to indicate the amount of uplink buffer data of the LCG.
  • an example of the BSR of the first BSR format is shown in FIG. 4, and an example of the BSR of the second BSR format is shown in FIG. 4.
  • the first field in the first BSR format occupies 5 bits
  • the second field in the second BSR format also occupies 5 bits.
  • the same number of bits indicating the amount of uplink buffer data of different data volume ranges may be The method is implemented: when the values of the first field and the second field are equal, the amount of the uplink buffer data corresponding to the value of the first field is different from the amount of the uplink buffer data corresponding to the value of the second field.
  • the first field may indicate that the uplink buffer data amount of the LCG is greater than 321 bytes and is less than or equal to 376 bytes; the second field may indicate the LCG.
  • the upstream cache data is greater than 200 bytes and less than or equal to 500 bytes.
  • the following describes how the BSR of the first BSR format and the BSR of the second BSR format use the same number of bits to indicate the amount of uplink buffer data in different data ranges.
  • the correspondence between the bit value of the first field in the BSR of the first BSR format and the amount of the uplink buffer data, and the correspondence between the bit value of the first field and the amount of the uplink buffer data in the BSR of the first BSR format may be predetermined Ok.
  • one bit value of the first field and the second field corresponds to an uplink buffer data amount range.
  • B k is used to represent the maximum value in the range of the uplink buffer data amount corresponding to one bit value, the following relationship may be satisfied between the decimal values p and B k corresponding to the bit value:
  • B min represents the minimum amount of upstream buffer data that the BSR format can indicate
  • k is a variable
  • different k values correspond to different B k . That is to say, when the first field and the second field take the same bit value, different k values make the same bit value correspond to different uplink buffer data amount ranges.
  • k may be referred to as the granularity or BS step size of the uplink buffer data amount indicated by the BSR of the first BSR format and the BSR of the second BSR format. That is to say, when the BSR of the first BSR format and the BSR of the second BSR format use the same number of bits to indicate the amount of uplink buffer data, the granularity is different.
  • the terminal device sends a target BSR to the access network device by using the first target BSR format, where the target BSR indicates the amount of uplink buffer data of the LCG.
  • the amount of uplink buffer data of the LCG may be the sum of the amount of uplink buffer data on all logical channels (LCH) included in the LCG.
  • LCH logical channels
  • the terminal can use the second BSR format to send the target.
  • the BSR indicates that the target BSR indicates that the amount of uplink buffer data of the third LCG is 2300 bytes.
  • the content of the target BSR may be as shown in FIG. 7.
  • the MAC sub-header of the target BSR may further include an LCID, where the LCID is used to indicate which BSR format is used by the target BSR.
  • the multiple BSR formats further include a third BSR format and a fourth BSR format, and the third BSR format and the fourth BSR format are both truncated BSR formats, and the terminal device uses the truncated BSR.
  • the truncated BSR sent by the format is used to report the amount of uplink buffer data of a part of the LCGs in all LCGs that have data to be reported.
  • the communication method shown in FIG. 2 may further include: when the terminal device determines that there are multiple LCGs to report uplink buffer data, determining whether the current uplink resource is sufficient for reporting the uplink buffer data amount of the multiple LCGs; When the resource is insufficient for reporting the buffered data volume information of the multiple LCGs, if the current uplink resource capacity can only accommodate one byte, the terminal device determines the third BSR format as the second target BSR format. Otherwise, the terminal device will The fourth BSR format is determined to be the second target BSR format. The terminal device sends the truncated BSR to the access network device by using the second target BSR format, and the truncated BSR includes the uplink buffer data amount of the partial LCG in the plurality of LCGs.
  • the third BSR format and the fourth BSR format are both truncated BSR formats, the BSR sent by the third BSR format occupies one byte, and the BSR sent by the fourth BSR format occupies two or two The above bytes.
  • the third field of the BSR sent by the third BSR format for indicating the amount of the uplink buffer data to be reported occupies 5 bits, and the fourth field used to indicate the reported uplink buffer data amount in the BSR sent by the fourth BSR format Take up 8 bits.
  • the third field occupies 5 bits is only an example, and the actual number of occupied bits is not limited; in addition, the fourth field occupies 8 bits as an example, and the actual occupied bit number may be other values.
  • the third BSR format is a short BSR format
  • the fourth BSR format may be the same as the long BSR format
  • the structure of reporting the amount of uplink buffer data of each LCG in the long BSR format may be as follows:
  • LCG ID+BS only report the LCG with data to be sent; use LCG ID to indicate the presence of BS for LCG;
  • bitmap+BS only report the LCG with data to be sent; use bitmap to indicate the presence of BS for LCG;
  • LCG ID can be other form ID.
  • it can be an SR configuration ID or other.
  • a communication method for reporting a BSR is also provided in the present application.
  • the communication method includes: S2310, when the terminal device determines that there are multiple LCGs to report uplink buffer data, determining whether the current uplink resource is sufficient for reporting the uplink buffer data quantity of the multiple LCGs; S2320, the current uplink resource is insufficient When the current uplink resource can only accommodate one byte, the terminal device determines the third BSR format as the second target BSR format, otherwise, the method is configured to report the buffered data volume information of the multiple LCGs.
  • the terminal device determines the fourth BSR format as the second target BSR format; S2330, the terminal device sends the truncated BSR to the access network device by using the second target BSR format, where the truncated BSR includes the multiple LCGs
  • the BSR is configured to report an amount of uplink buffer data of a part of the plurality of LCGs.
  • the current uplink resource may be a resource used by the terminal to transmit the BSR from the access network device, or may be a resource remaining after the terminal transmits the uplink data.
  • the current resource may be a resource for reporting cached data amount information of the multiple LCGs.
  • the third BSR format may be a short truncated BSR format (short truncated BSR format).
  • the fourth BSR format may be a long truncated BSR format (long truncated BSR format).
  • the BSR sent by using the third BSR format may occupy one byte, and the BSR sent by using the fourth BSR format may occupy two or more bytes.
  • the third BSR format includes a third field, where the third field can occupy 5 bits, and the third field is used to indicate an uplink of one LCG in the partial LCG. The amount of data cached.
  • the LCG ID indicates the logical channel group identifier
  • the buffer size indicates the amount of the uplink buffer data of the LCG corresponding to the LCG ID.
  • the buffer size may be an index value, and the index value and the uplink value.
  • the terminal device may determine the value of the cache size in the short-cut BSR, that is, the index value, according to the correspondence and the amount of uplink cache data to be sent by itself.
  • the LCG with the highest priority can be determined from the plurality of LCGs and the amount of the uplink buffer data of the LCG is reported.
  • the LCG with the highest priority may refer to the LCG where the LCH with the highest buffered data volume and the highest priority is located.
  • the LCG ID in the short-cut BSR is the ID of the LCG with the highest priority
  • the cache size field is the amount of the upstream cache data corresponding to the LCG with the highest priority.
  • the LCG ID can occupy 3 bits
  • the cache size field can occupy 5 bits.
  • the fourth BSR format includes a fourth field, where the fourth field can occupy 8 bits, and the fourth field is used to indicate whether the eight LCGs of the terminal device have uplink The amount of cached data is reported.
  • the BSR of the fourth BSR format may indicate whether multiple LCGs have uplink buffer data volume reporting by means of a bitmap.
  • the means for indicating whether the plurality of LCGs have an uplink buffer data amount by means of a bitmap means: indicating, by the plurality of bits, whether the plurality of LCGs have an uplink buffer data amount report, the plurality of bits corresponding to the plurality of LCGs Each of the multiple bits is used to indicate whether the LCG corresponding to the bit has an uplink buffer data amount reported.
  • the value of each of the multiple bits may be “1” or “0”, where the bit value “1” may indicate that the corresponding LCG has an uplink buffer data amount, and the bit value “0” may indicate The corresponding LCG does not report the amount of uplink buffer data.
  • the LCGi is used to indicate whether the LCG indexed by i has an uplink buffer data amount to be reported, and i can be taken from 0 to 7.
  • LCG is set to 1
  • the LCG with the index identifier i has the amount of uplink buffer data to be reported. If LCG is set to 0, the LCG with index i has no uplink buffer data to report.
  • 8 bits can be used to indicate the buffer size of the upstream buffered data amount of the LCG.
  • m in Fig. 17 may take any value from 1 to 8, for example, the value of m is equal to the number of LCGs reported with the amount of uplink buffer data. If there is no uplink buffer data to be reported by the LCG, the cache size may not be reported.
  • the BSR of the fourth BSR format can indicate whether the 8 LCGs have an uplink buffer data amount report by 8 bits, and the 8 bits are in one-to-one correspondence with the 8 LCGs, and each of the 8 bits indicates this. Whether the corresponding LCG in the eight LCGs has an uplink buffer data amount reported.
  • the bitmap for indicating whether the 8 LCGs have the number of uplink buffers is reported includes 8 bits. If the value of the third bit in the 8 bits is "1", the value of the fourth bit is "1", and the other bits are all "0", the BSR in the fourth BSR format reports that the index is 2.
  • the LCG and the LCG of the LCG with an index of 3, wherein the field for reporting the amount of the uplink buffer data of the LCG with the index of 2 can occupy 8 bits, and is used for reporting the amount of the uplink buffer data of the LCG with the index of 3.
  • the field can also occupy 8 bits.
  • the sending, by the terminal device, the truncated BSR to the access network device by using the second target BSR format may include: using, by the terminal device, the priority of the multiple LCGs
  • the second target BSR format sends the truncated BSR to the access network device; wherein a highest priority of a logical channel LCH of each of the plurality of LCGs is used as a priority of each of the LCGs.
  • the terminal may determine, according to the priorities of the multiple LCGs, which of the plurality of LCGs are sent to the access network device.
  • the priority of the plurality of LCGs may be determined by the priority of the LCHs included in the plurality of LCGs.
  • N LCGs there are N LCGs, each of which includes a plurality of logical channels (LCHs), each having a different priority.
  • LCG takes the highest priority in the LCH itself included as the priority of the LCG.
  • the terminal device can sort the plurality of LCGs in order of priority from highest to lowest.
  • the terminal device carries the uplink buffer data amount information of the first M LCGs in the BSR and sends the information to the network side device according to the number M of the LCGs that can be sent by the uplink resource.
  • N is an integer greater than 1
  • M is an integer greater than or equal to 1
  • M is less than N.
  • LCGs there are 8 LCGs, which are sequentially labeled as LCG0 to LCG7. It should be understood that the ordering here does not represent the priority of the eight LCGs.
  • Each of the eight LCGs takes the priority of the LCH with the highest priority among the LCHs included in itself as the priority of the LCG.
  • the results of sorting the eight LCGs from high to low according to priority are: LCG5, LCG3, LCG6, LCG4, LCG1, LCG2, LCG7, and LCG0.
  • the terminal device determines that the uplink resource used for sending the BSR can only send the uplink buffer data amount of the two LCGs, if the current terminal device determines that only the buffer data amount information of the LCG5 and the LCG3 (the first two ranks are ranked),
  • the LCGi position corresponding to the first byte is 1, that is, the bit corresponding to LCG5 and LCG3 is set to 1; and then the corresponding buffer size domain is also in accordance with the LCG priority.
  • the cache state information of the corresponding LCG is placed in sequence, that is, the uplink buffer data amount information of the LCG5 is first placed, and then the uplink buffer data amount information of the LCG3 is placed.
  • the LCGi corresponding to the first byte is set to 1, that is, the bit corresponding to the LCG5 and the LCG3 is set to 1, and the cache size is placed according to the LCG ID size, that is, The uplink buffer data amount information of the LCG3 is first placed, and then the uplink buffer data amount information of the LCG5 is placed.
  • the access network device can determine, according to the LCG priority, which LCGs have the uplink buffer data amount reported by the terminal device, and determine the uplink buffer data amount of the LCGs.
  • the bit values for indicating whether the LCG7 to LCG0 have the uplink buffer data amount are sequentially recorded, and this recording order does not represent the priority of the eight LCGs.
  • the bit value used to indicate whether the LCG7 to LCG0 has the uplink buffer data amount is reported may be recorded in an arbitrary order.
  • the bit value for indicating whether the LCG0, the LCG1, the LCG2, the LCG3, the LCG4, the LCG5, the LCG6, and the LCG7 have the uplink buffer data amount may be recorded in the byte. As long as the recording sequence can be known between the terminal device and the access network device.
  • the communications method may further include: the terminal device sending the first indication information to the access network device, where the first indication information is used to indicate that the truncated BSR is used for sending BSR format.
  • the terminal device may also send indication information (ie, first indication information) to the access network device, where the indication information is used to indicate which BSR format is used by the BSR that sends the uplink buffer data amount, or is used to indicate The type of BSR that the upstream buffers the amount of data.
  • indication information ie, first indication information
  • the first indication information may be an LCID value. Different LCID values are used to indicate different BSR formats, or different LCIDs are used to indicate different BSR types.
  • the LCID may be located in a MAC subheader.
  • the terminal device may obtain the first indication information by parsing the LCID field in the MAC subheader to learn the BSR format and/or learn the BSR type. See Table 2 for the LCID value table.
  • the communication method may further include: the terminal device sending second indication information to the access network device, where the second indication information is used to indicate a length of the truncated BSR .
  • the terminal device may also send indication information (ie, second indication information) to the access network device, where the indication information is used to indicate the length of the BSR.
  • indication information ie, second indication information
  • the second indication information may be a length field indicating a length in the MAC sub-header, and the number of bits corresponding to the length field may be 8 or 16, or other values, which are not limited herein.
  • the length field "L” occupies 8 bits; as shown in FIG. 22, the length field “L” occupies 16 bits.
  • the R field indicates that the field is reserved; the F (Format field) field is used to indicate the size of the length field. For example, the value of the F field is 0, indicating that the length field L occupies 8 bits; A value of 1 indicates that the length field L occupies 16 bits.
  • a communication method for reporting a BSR is also provided in the present application.
  • the communication method includes: S2410, the access network device receives a BSR sent by the terminal device using the second target BSR format.
  • the second target BSR format is the third BSR format, otherwise the The second target BSR format is the fourth BSR format.
  • the third BSR format and the fourth BSR format are both truncated BSR formats, the truncated BSR format is a format used by the terminal device to send a truncated BSR, and the truncated BSR is used to report the multiple LCGs.
  • the BSR sent by using the third BSR format occupies one byte
  • the BSR sent by using the fourth BSR format occupies two or more bytes.
  • the third BSR format includes a third field, where the third field occupies 5 bits, and the third field is used to indicate an uplink buffer of one of the partial LCGs. The amount of data.
  • the fourth BSR format includes a fourth field, where the fourth field occupies 8 bits, and the fourth field is used to indicate whether the eight LCGs of the terminal device have an uplink buffer. The amount of data is reported.
  • the access network device receives the BSR sent by the terminal device by using the second target BSR format, including:
  • the communications method further includes: the access network device receiving first indication information from the terminal device, where the first indication information is used to indicate the second target BSR format .
  • the communications method further includes: the access network device receiving second indication information from the terminal device, wherein the second indication information is used to indicate that the second target BSR is used The length of the BSR sent in the format.
  • the communication method shown in FIG. 24 corresponds to the communication method shown in FIG. 23, and is not described herein again for the sake of brevity.
  • the first field used to indicate the amount of uplink buffer data in the BSR sent by the terminal device in the first BSR format and the BSR sent by the terminal device in the second BSR format are used in the BSR format.
  • the second field of the amount of the uplink buffer data includes the same number of bits, and when the bit value of the first field is the same as the bit value of the second field, the amount of the uplink buffer data indicated by the bit value of the first field and the uplink indicated by the bit value of the second field.
  • the BSR of the first BSR format indicates the amount of uplink buffer data in the first data amount threshold
  • the BSR of the second BSR format indicates the amount of uplink buffer data in the second data amount threshold
  • the first data amount threshold is smaller than the second data amount threshold. If the reporting accuracy of the LCG is high, the terminal device determines the first BSR format as the first target BSR format. If the reporting accuracy of the LCG is low, the terminal device determines the second BSR format as the first target BSR. format.
  • the reporting accuracy is the granularity described above.
  • the reporting accuracy is high, that is, the p value in the foregoing formula is small, and the reporting accuracy is low, that is, the p value in the foregoing formula is large.
  • the reporting accuracy of the LCG may be that the terminal device receives from the access network device.
  • the current uplink resource may be a resource used by the terminal to transmit the BSR from the access network device, or may be a resource remaining after the terminal transmits the uplink data.
  • the terminal device may further send, to the access network device, indication information, where the indication information is used to indicate which BSR format is used by the BSR that sends the uplink buffer data amount.
  • the terminal device may further send indication information to the access network device, where the indication information is used to indicate the length of the BSR.
  • the terminal may determine, according to the priorities of the multiple LCGs, which of the plurality of LCGs are sent to the access network device.
  • the priority of the plurality of LCGs may be determined by the priority of the LCHs included in the plurality of LCGs.
  • N LCGs there are N LCGs, each of which includes a plurality of logical channels (LCHs), each having a different priority.
  • LCG takes the highest priority in the LCH itself included as the priority of the LCG.
  • the terminal device can sort the plurality of LCGs in order of priority from highest to lowest.
  • the terminal device sends the BSRs in the format of FIG. 4 according to the number M of LCGs that the uplink resource can transmit, and the LCG IDs of the first M LCGs.
  • N is an integer greater than 1
  • M is an integer greater than or equal to 1
  • M is less than N.
  • the first field used to indicate the amount of uplink buffer data in the BSR sent by the terminal device in the first BSR format and the BSR sent by the terminal device in the second BSR format are used in the BSR format.
  • the second field of the amount of the uplink buffer data includes the same number of bits, and when the bit value of the first field is the same as the bit value of the second field, the amount of the uplink buffer data indicated by the bit value of the first field and the uplink indicated by the bit value of the second field.
  • the BSR of the first BSR format indicates the amount of uplink buffer data in the first data amount threshold
  • the BSR of the second BSR format indicates the amount of uplink buffer data in the second data amount threshold
  • the first data amount threshold is smaller than the second data amount threshold. If the reporting accuracy of the LCG is high, the terminal device determines the first BSR format as the first target BSR format. If the reporting accuracy of the LCG is low, the terminal device determines the second BSR format as the first target BSR. format.
  • the reporting accuracy is the granularity described above.
  • the reporting accuracy is high, that is, the p value in the foregoing formula is small, and the reporting accuracy is low, that is, the p value in the foregoing formula is large.
  • the reporting accuracy of the LCG may be that the terminal device receives from the access network device.
  • FIG. 8 A schematic flowchart of a communication method of another embodiment of the present application is shown in FIG. 8. It should be understood that FIG. 8 illustrates steps or operations of the communication method, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the operations of FIG.
  • the communication method shown in FIG. 8 may include S810.
  • the access network device receives a target BSR that is sent by the terminal device by using the first target BSR format, where the target BSR is used to indicate an amount of uplink buffer data of the one LCG.
  • the first target BSR format is a BSR format determined by the terminal device to determine that only one logical channel group LCG has a to-be-advertised cache data, and the multiple BSR formats are The terminal device reports multiple formats used by different BSRs according to different ranges of uplink buffer data.
  • the access network device in the communication method shown in FIG. 8 may be the access network device in the communication method shown in FIG. 2, and the related technical features in the communication method shown in FIG. 2 may also be used as shown in FIG. In the communication method. I will not repeat them here.
  • FIG. 9 illustrates steps or operations of the communication method, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the operations in FIG.
  • the communication method shown in FIG. 9 may include S910 and S920.
  • the terminal device determines that the LCG that is to be reported to be buffered data meets at least one of the following conditions: the uplink buffer data of the LCG is not reported by the terminal device when the BSR is reported to the current time, and the terminal device reports the uplink buffer of the LCG.
  • the time interval between the time of the data volume and the current time is greater than or equal to the time threshold, and the data amount difference between the uplink buffer data volume of the LCG and the current uplink buffer data volume of the LCG reported by the terminal device is greater than or equal to The data volume threshold, the maximum priority of the LC in the LCG is greater than or equal to the priority threshold.
  • the terminal device maintains a variable for each LCG to record whether the amount of uplink buffer data is reported before each LCG. If the LCG reports, the variable corresponding to the LCG may be set to 1, otherwise, the LCG may be corresponding. The variable is set to 0.
  • the terminal device can repeatedly report the uplink buffer data of the same LCG, and the access network device can repeatedly allocate uplink resources for the same LCG of the same terminal device, thereby saving resources.
  • the terminal device may also receive the waiting time, and the access network device may be allocating resources for the terminal device, and the terminal device does not need to report again; Otherwise, when the interval between two adjacent reporting times of the same LCG is greater than the time threshold, it indicates that the terminal device has not been allocated resources for a long time, which exceeds the limit that the terminal device can tolerate, and must report to the BS to inform the access network device. Your own resource needs.
  • the amount of data reported by the same two LCGs is less than the data volume threshold, the amount of resources required by the terminal device is not much. It is not necessary to send the BS to the access network device to apply for resources again for this part of the resource requirement; When the data volume difference between the uplink buffer data volume of the LCG and the current uplink buffer data volume of the LCG is greater than or equal to the data volume threshold, the terminal device has accumulated a large amount of data. The restrictions that I can tolerate need to be reported again.
  • the priority of the LCH in a certain LCG is greater than or equal to the priority threshold, the data to be reported by the terminal device at this time is higher for the terminal device, and the reporting requirement is more urgent.
  • S920 The terminal sends a BSR to the access network device, where the BSR is used to indicate the current uplink buffer data amount of the LCG.
  • the terminal device determines that the LCG that is to be reported to be buffered data does not satisfy the following conditions: the amount of the uplink buffer data that has been reported by the terminal device is reported to the current time, and the terminal device reports the LCG last time.
  • the time interval between the time of the uplink buffered data volume and the current time is less than the time threshold, and the data amount difference between the uplink buffer data volume of the LCG and the current uplink buffer data volume of the LCG reported by the terminal device is smaller than the data.
  • the threshold value indicates that when the maximum priority of the LCH in the LCG is less than the priority threshold, the terminal device does not send a BSR indicating the current uplink buffer data amount of the LCG.
  • the communication method can avoid repeated reporting of the amount of uplink buffer data of the LCG, thereby saving resources.
  • the terminal determines the amount of uplink buffer data that is not reported by the LCG when the BSR is reported to the current time, and can be implemented in the following manner:
  • the terminal determines that the indication information set does not include the indication information of the LCG, it determines that the amount of the uplink buffer data of the LCG is not reported between the time when the BSR is reported and the current time, and the indication information in the indication information set is used to indicate that the information is reported.
  • the LCG of the amount of upstream buffered data.
  • the communication method further includes: the terminal device adding, in the indication information set, indication information that reports the amount of the uplink buffer data of the LCG.
  • variable set can be maintained on the terminal device, and the variable in the variable set is used to record which LCG uplink buffer data has been reported between the time when the BSR is triggered and the current time.
  • the terminal device When the terminal device is currently sending a BSR, it can query whether there is a variable in the variable set that records the amount of uplink buffer data of the LCG that has been reported. If yes, the terminal device does not report the amount of the uplink buffer data of the LCG; otherwise, the terminal device reports the amount of the uplink buffer data of the LCG, and uses the variable in the variable set to record that the amount of the uplink buffer data of the LCG has been reported.
  • the terminal device determines that the time interval between the time when the uplink buffer data of the LCG is reported last time and the current time is greater than or equal to the time threshold, and can be implemented in the following manner: A timer can be maintained on the terminal device. The timer starts from the last time the terminal device reports the amount of uplink buffer data of the LCG. If the current time exceeds the timing of the timer, the terminal device may report the amount of uplink buffer data of the LCG; otherwise, the device does not report.
  • the communication method may further include: the terminal device receiving at least one of the following information from the access network device: a time threshold, a data amount threshold, and a priority threshold.
  • the time threshold, the data amount threshold, or the priority threshold can be used.
  • the access network device receives the BSR sent by the terminal device, where the BSR includes the uplink buffer data amount of the LCG;
  • the access network device determines that the LCG corresponding to the BSR meets at least one of the following conditions: the terminal device triggers the uplink buffer data of the LCG, and the terminal device reports the uplink buffer of the LCG.
  • the time interval between the time of the data volume and the current time is greater than or equal to the time threshold, and the data amount difference between the uplink buffer data volume of the LCG received by the terminal device and the current uplink buffer data volume of the LCG is greater than or equal to a data volume threshold, where the maximum priority of the LC in the LCG is greater than or equal to the priority threshold;
  • the access network device allocates a resource to the terminal, where the resource is used by the terminal to report the cached data corresponding to the amount of the uplink buffer data of the LCG.
  • the access network determines that the LCG does not meet the following conditions: the terminal device triggers the reporting of the BSR, and the amount of the uplink buffer data of the LCG has been reported between the current time and the last time the terminal device reports the LCG.
  • the time interval between the time of the uplink buffered data and the current time is less than the time threshold, and the data amount difference between the uplink buffer data volume of the LCG and the current uplink buffer data volume of the LCG reported by the terminal device is smaller than the data volume.
  • the threshold value when the maximum priority of the LC in the LCG is less than the priority threshold, the access network device does not allocate the resource for the terminal to report the cached data corresponding to the amount of the uplink buffer data of the LCG.
  • the communication method can prevent the access network device from repeatedly allocating resources, thereby saving resources.
  • the communication method of another embodiment of the present application may include: the access network device sends the first indication information to the terminal device, where the first indication information is used to instruct the terminal device to report the uplink buffer data of the first LCG by using the BSR in the fifth BSR format.
  • the access network device receives the uplink buffer data amount of the first LCG reported by the terminal device using the BSR in the fifth BSR format.
  • the access network device can determine which BSR format the LCG corresponds to according to the amount of data normally corresponding to the service carried on each LC in the LCG.
  • the LC included in the LCG is used to carry the voice service, and the voice service corresponds to a maximum of 1000 bytes.
  • the access network device can use the method similar to that in FIG. 2 to select the appropriate BSR format to report the LCG.
  • the BSR format of the amount of upstream buffered data.
  • the terminal device receives the first indication information that is sent by the access network device, where the first indication information is used to indicate that the terminal device reports the uplink buffer data amount of the first LCG by using the BSR in the fifth BSR format; the terminal device determines that only The first LCG has an uplink buffer data to be sent; the terminal device reports the amount of uplink buffer data of the first LCG by using the BSR in the fifth BSR format.
  • the fifth BSR format may be the first BSR format described above, or may be the second BSR format described above, and details are not described herein again.
  • FIG. 10 A schematic structural diagram of a terminal device according to an embodiment of the present application is shown in FIG. It should be understood that the terminal device 1000 shown in FIG. 10 is only an example, and the terminal device in the embodiment of the present application may further include other modules or units, or include modules similar to those of the modules in FIG. 10, or are not included in the figure. All modules in 10.
  • the terminal device 1000 includes a processing module 1010 and a transmitting module 1020.
  • the processing module 1010 is configured to determine the number of logical channel groups LCG that currently have buffer data to be reported.
  • the processing module 1010 is further configured to: determine that a BSR format is determined from a plurality of BSR formats when only one LCG has a data to be reported, as the first target BSR format, and the terminal device is configured according to the multiple BSR formats.
  • the range of reported upstream cache data is different.
  • the sending module 1020 is configured to send, by using the first target BSR format, a target BSR, where the target BSR is used to indicate an amount of uplink buffer data of the one LCG.
  • the multiple BSR formats include a first BSR format and a second BSR format, and the amount of uplink buffer data reported by the terminal device by using the first BSR format is less than or equal to a first data amount threshold, where the terminal The amount of uplink buffer data reported by the device using the second BSR is less than or equal to the second data amount threshold.
  • processing module 1010 is specifically configured to:
  • the second BSR format is determined to be the first target BSR format.
  • the BSR sent by using the first BSR format occupies one byte
  • the BSR sent by using the second BSR format occupies two or more bytes.
  • the first field used to indicate the reported uplink buffer data amount in the BSR that is sent by using the first BSR format occupies 5 bits
  • the BSR sent in the second BSR format is used to indicate the uplink reported.
  • the second field of the amount of buffered data occupies 8 bits.
  • the BSR sent by using the first BSR format and the BSR sent by using the second BSR format both occupy one byte.
  • the first field used to indicate the reported uplink buffer data amount in the BSR sent by using the first BSR format, and the uplink buffer data amount used to indicate the reported uplink in the BSR sent by using the second BSR format occupies 5 bits.
  • the first BSR format is a short BSR format
  • the second BSR format is a long BSR format
  • the first BSR format and the second BSR format are both short BSR formats.
  • the multiple BSR formats include a third BSR format and a fourth BSR format, where the third BSR format and the fourth BSR format are both truncated BSR formats, and the terminal device uses the truncated BSR format.
  • the sent truncated BSR is used to report the amount of uplink buffer data of a part of the LCGs in all LCGs that have data to be reported.
  • the processing module 1010 is further configured to:
  • the third BSR format is determined to be the second target BSR format. Otherwise, the fourth BSR format is determined to be the second target BSR format.
  • the sending module 1020 is further configured to: send, by using the second target BSR format, a truncated BSR to the access network device, where the truncated BSR includes uplink buffer data of a part of the plurality of LCGs the amount.
  • a highest priority of the logical channel LC in each LCG is greater than or equal to a priority of all LCs in the LCG except the partial LCG in the multiple LCGs.
  • each module included in the terminal device 1000 in FIG. 10 may be used to implement corresponding steps performed by the database network element in the communication method shown in FIG. 2, and details are not described herein for brevity.
  • FIG. 11 A schematic structural diagram of an access network device according to an embodiment of the present application is shown in FIG. It should be understood that the access network device 1100 shown in FIG. 11 is only an example, and the terminal device in the embodiment of the present application may further include other modules or units, or include modules similar in function to the respective modules in FIG. 11, or Includes all the modules in Figure 11.
  • the receiving module 1110 is configured to receive a target BSR that is sent by the terminal device by using the first target BSR format, where the target BSR is used to indicate an amount of uplink buffer data of the one LCG.
  • the first target BSR format is a BSR format determined by the terminal device to determine that only one logical channel group LCG has a to-be-advertised cache data, and the multiple BSR formats are The terminal device reports multiple formats used by different BSRs according to different ranges of uplink buffer data.
  • the multiple BSR formats include a first BSR format and a second BSR format, where the first BSR format is used by the terminal device to report the BSR according to the amount of cached data in the first data amount threshold.
  • the second BSR format is a format used by the terminal device to report the BSR according to the amount of buffered data in the second data amount threshold.
  • the BSR sent by using the first BSR format occupies one byte
  • the BSR sent by using the second BSR format occupies two or more bytes.
  • the first field used to indicate the reported uplink buffer data amount in the BSR that is sent by using the first BSR format occupies 5 bits
  • the BSR sent in the second BSR format is used to indicate the uplink reported.
  • the second field of the amount of buffered data occupies 8 bits.
  • the BSR sent by using the first BSR format and the BSR sent by using the second BSR format both occupy one byte.
  • the first field used to indicate the reported uplink buffer data amount in the BSR sent by using the first BSR format, and the uplink buffer data amount used to indicate the reported uplink in the BSR sent by using the second BSR format occupies 5 bits.
  • the first BSR format is a short BSR format
  • the second BSR format is a long BSR format
  • the first BSR format and the second BSR format are both short BSR formats.
  • the multiple BSR formats include a third BSR format and a fourth BSR format.
  • the receiving module 1110 is further configured to: receive a BSR sent by the terminal device by using a second target BSR format;
  • the second target BSR format is the third BSR format. Otherwise, the second target BSR format is the fourth BSR format;
  • the third BSR format and the fourth BSR format are both truncated BSR formats, the truncated BSR format is a format used by the terminal device to send a truncated BSR, and the truncated BSR is used to report the multiple LCGs.
  • FIG. 12 A schematic structural diagram of a terminal device of another embodiment of the present application is shown in FIG. It should be understood that the terminal device 1200 shown in FIG. 12 is only an example, and the terminal device in the embodiment of the present application may further include other modules or units, or include modules similar to those of the modules in FIG. 12, or not including the figure. All modules in 12.
  • the terminal device 1200 includes a processing module 1210 and a transmitting module 1220.
  • the processing module 1210 is configured to determine that the logical channel group LCG that has the cached data to be reported meets at least one of the following conditions:
  • the amount of uplink buffer data of the LCG is not reported between the time when the BSR is reported and the current time;
  • the time interval between the time when the terminal device reports the uplink buffer data volume of the LCG and the current time is greater than or equal to the time threshold
  • the data amount difference between the uplink buffer data volume of the LCG reported by the terminal device and the current uplink buffer data volume of the LCG is greater than or equal to the data volume threshold
  • the maximum priority of the logical channel LC in the LCG is greater than or equal to the priority threshold.
  • the sending module 1220 is configured to send the BSR to the access network device, where the BSR is used to indicate the current uplink buffer data amount of the LCG.
  • processing module 1210 is specifically configured to:
  • the processing module 1210 is further configured to: add, in the indication information set, indication information that reports the amount of uplink buffer data of the LCG.
  • FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application. It should be understood that the terminal device 1300 shown in FIG. 13 is only an example, and the terminal device in the embodiment of the present application may further include other modules or units, or include modules similar to those of the modules in FIG. 13 or not including the figure. All modules in 13.
  • the terminal device 1300 includes a processor 1320 and a transmitter 1340.
  • a memory 1310 and/or a receiver 1330 may also be included.
  • Receiver 1330 and transmitter 1340 can be integrated together, referred to as a transceiver.
  • the processor 1320 can be used to implement the operations or steps performed by the processing module 1010 in FIG. 10, and the transmitter 1340 can be used to implement the operations or steps performed by the sending module 1020 in FIG.
  • the receiver 1330 can be configured to receive information sent by the access network device.
  • the memory 1310 is configured to store program code executed by the processor 1320.
  • the memory 1320 can be integrated with a memory.
  • FIG. 14 is a schematic structural diagram of an access network device according to an embodiment of the present application. It should be understood that the access network device 1400 illustrated in FIG. 14 is only an example, and the access network device of the embodiment of the present application may further include other modules or units, or include modules similar in function to the respective modules in FIG. 14 , or It is not necessary to include all the modules in Figure 14.
  • Access network device 1400 includes a processor 1420 and a receiver 1430.
  • a memory 1410 and/or a transmitter 1420 may also be included.
  • Receiver 1430 and transmitter 1440 can be integrated together, referred to as a transceiver.
  • the receiver 1430 can be used to implement the operations or steps performed by the receiving module 1110 in FIG.
  • Transmitter 1440 can be used to send information to the terminal device.
  • the memory 1410 is configured to store program code executed by the processor 1320.
  • the processor 1420 can be used to implement program code in the execution memory 1410, and the memory can be integrated in the processor 1420.
  • FIG. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application. It should be understood that the terminal device 1500 illustrated in FIG. 15 is only an example, and the terminal device of the embodiment of the present application may further include other modules or units, or include modules similar to those of the respective modules in FIG. 15 or not including the figure. All modules in 15th.
  • the terminal device 1500 includes a processor 1520 and a transmitter 1540.
  • a memory 1510 and/or a receiver 1530 may also be included.
  • Receiver 1530 and transmitter 1540 can be integrated together, referred to as a transceiver.
  • the processor 1520 can be used to implement the operations or steps performed by the processing module 1210 in FIG. 12, and the transmitter 1540 can be used to implement the operations or steps performed by the sending module 1220 in FIG.
  • the receiver 1530 can be configured to receive information sent by the access network device.
  • the memory 1510 is configured to store program code executed by the processor 1520.
  • a memory may be integrated in the processor 1520.
  • FIG. 25 A schematic structural diagram of a terminal device according to an embodiment of the present application is shown in FIG. 25. It should be understood that the terminal device 2500 shown in FIG. 25 is only an example, and the terminal device in the embodiment of the present application may further include other modules or units, or include modules similar to those of the modules in FIG. 25, or not including the figure. All modules in 25.
  • the processing module 2510 is configured to: determine that the current uplink resource is sufficient to report the uplink buffer data quantity of the multiple LCGs when the plurality of LCGs are to be reported, and the current uplink resource is insufficient for the reporting When the current amount of the uplink resource is only one byte, the third BSR format is determined to be the second target BSR format, otherwise the fourth BSR format is used. Determined as the second target BSR format.
  • the sending module 2520 is configured to: send, by using the second target BSR format, a truncated BSR to the access network device, where the truncated BSR includes an uplink buffer data amount of a part of the plurality of LCGs;
  • the third BSR format and the fourth BSR format are both truncated BSR formats, the truncated BSR format is a format used by the terminal device to send a truncated BSR, and the truncated BSR is used to report a part of the multiple LCGs.
  • the amount of upstream cache data of the LCG is configured to: send, by using the second target BSR format, a truncated BSR to the access network device, where the truncated BSR includes an uplink buffer data amount of a part of the plurality of LCGs;
  • the third BSR format and the fourth BSR format are both truncated BSR formats, the truncated BSR format is a format used by the terminal
  • the BSR sent by using the third BSR format occupies one byte
  • the BSR sent by using the fourth BSR format occupies two or more bytes.
  • the third BSR format includes a third field, where the third field occupies 5 bits, and the third field is used to indicate an amount of uplink buffer data of one LCG in the partial LCG.
  • the fourth BSR format includes a fourth field, where the fourth field occupies 8 bits, and the fourth field is used to indicate whether the eight LCGs of the terminal device have an uplink buffer data volume report.
  • the sending module is specifically configured to: send, by using the second target BSR, the truncated BSR to the access network device according to a priority of the multiple LCGs, where the multiple LCGs The highest priority of the logical channel LCH of each LCG is taken as the priority of each of the LCGs.
  • the sending module is further configured to: send the first indication information to the access network device, where the first indication information is used to indicate the BSR format used by the truncated BSR.
  • the sending module is further configured to: send the second indication information to the access network device, where the second indication information is used to indicate a length of the truncated BSR.
  • the terminal device 2500 can be used to perform the communication method shown in FIG. 23, and details are not described herein for brevity.
  • an example of the processing module is a processor, and an example of the sending module is a transmitter.
  • the terminal device may further include a memory coupled to the processor for storing program code executed by the processor.
  • the terminal device may further include a receiver for receiving information. The receiver and transmitter can be integrated together, called a transceiver.
  • an example of the terminal device 2500 is a chip.
  • one example of the processing module is a processor, and an example of the transmitting module is a communication interface.
  • the terminal device 2500 may further include a memory coupled to the processor for storing program code executed by the processor.
  • FIG. 26 A schematic structural diagram of an access network device according to an embodiment of the present application is shown in FIG. It should be understood that the access network device 2600 illustrated in FIG. 26 is only an example, and the access network device of the embodiment of the present application may further include other modules or units, or include modules similar in function to the respective modules in FIG. 26, or It is not necessary to include all the modules in Figure 26.
  • the receiving module 2610 is configured to: receive a BSR sent by the terminal device by using a second target BSR format.
  • the second target BSR format is the third BSR format. Otherwise, the second target BSR format is the fourth BSR format.
  • the third BSR format and the fourth BSR format are both truncated BSR formats, the truncated BSR format is a format used by the terminal device to send a truncated BSR, and the truncated BSR is used to report the multiple LCGs.
  • the BSR sent by using the third BSR format occupies one byte
  • the BSR sent by using the fourth BSR format occupies two or more bytes.
  • the third BSR format includes a third field, where the third field occupies 5 bits, and the third field is used to indicate an amount of uplink buffer data of one LCG in the partial LCG.
  • the fourth BSR format includes a fourth field, where the fourth field occupies 8 bits, and the fourth field is used to indicate whether the eight LCGs of the terminal device have an uplink buffer data volume report.
  • the receiving module is configured to: receive, according to a priority of the multiple LCGs, a BSR sent by the terminal device by using the second target BSR, where each LCG of the multiple LCGs The highest priority of the logical channel LCH is taken as the priority of each of the LCGs.
  • the receiving module is further configured to: receive the first indication information from the terminal device, where the first indication information is used to indicate the second target BSR format.
  • the receiving module is further configured to: receive second indication information from the terminal device, where the second indication information is used to indicate a length of a BSR that is sent by using the second target BSR.
  • the access network device 2600 can be used to perform the communication method shown in FIG. 24, and details are not described herein for brevity.
  • an example of the receiving module is a transmitter.
  • the access network device may further include a processor for executing program code, and when the processor executes the program code, the transmitter implements the communication method shown in FIG.
  • the access network device can also include a memory coupled to the processor for storing program code for execution by the processor.
  • the access network device can also include a transmitter for transmitting information.
  • the receiver and transmitter can be integrated together, called a transceiver.
  • an example of an access network device 2600 is a chip.
  • an example of the transmitting module is a communication interface, and the access network device may further include a processor that executes the program code.
  • the communication interface implements the communication method shown in FIG.
  • the access network device 2600 is a chip, it may further include a memory coupled to the processor for storing program code executed by the processor.
  • the present application examples also provide a device (eg, an integrated circuit, a wireless device, a circuit module, etc.) for implementing the above method.
  • a device eg, an integrated circuit, a wireless device, a circuit module, etc.
  • the means for implementing the power tracker and/or power generator described herein may be a stand-alone device or may be part of a larger device.
  • the device may be (i) a self-contained IC; (ii) a set having one or more 1Cs, which may include a memory IC for storing data and/or instructions; (iii) an RFIC, such as an RF receiver or RF transmitter (iv) an ASIC, such as a mobile station modem; (v) a module that can be embedded in other devices; (vi) a receiver, a cellular phone, a wireless device, a handset, or a mobile unit; (vii) other, etc. Wait.
  • a self-contained IC may include a memory IC for storing data and/or instructions; (iii) an RFIC, such as an RF receiver or RF transmitter (iv) an ASIC, such as a mobile station modem; (v) a module that can be embedded in other devices; (vi) a receiver, a cellular phone, a wireless device, a handset, or a mobile unit; (vii) other, etc. Wait.
  • the method and apparatus provided by the embodiments of the present application may be applied to a terminal device or an access network device (which may be collectively referred to as a wireless device).
  • the terminal device or access network device or wireless device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system.
  • the application layer includes applications such as browsers, contacts, word processing software, and instant messaging software.
  • the embodiment of the present application does not limit the specific structure of the execution subject of the method, as long as the transmission signal according to the embodiment of the present application can be executed by running a program that records the code of the method of the embodiment of the present application.
  • the method can be communicated.
  • the execution body of the method for wireless communication in the embodiment of the present application may be a terminal device or an access network device, or a function capable of calling a program and executing a program in the terminal device or the access network device. Module.
  • a computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (DVD). Etc.), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), cards, sticks or key drivers, etc.).
  • a magnetic storage device eg, a hard disk, a floppy disk, or a magnetic tape, etc.
  • CD compact disc
  • DVD digital versatile disc
  • Etc. smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), cards, sticks or key drivers, etc.).
  • various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the execution order of each process should be determined by its function and internal logic, and should not be applied to this application.
  • the implementation of the embodiments constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • 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, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present application, or the part contributing to the prior art or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or an access network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

Abstract

本申请提供了BSR的通信方法和终端设备。该通信方法包括：终端设备确定当前存在待上报缓存数据的LCG的个数；终端设备确定只有一个LCG存在待上报缓存数据时，从多种BSR格式中确定一种BSR格式，作为第一目标BSR格式，多种BSR格式是终端设备根据上行缓存数据量范围的不同上报不同的BSR所使用的多种格式；终端设备通过第一目标BSR格式向接入网设备发送目标BSR，目标BSR用于指示这一个LCG的上行缓存数据量。本申请提供的BSR的通信方法和终端设备，可以提高LCG的上行缓存数据量的上报完整性。

Description

通信方法、终端设备和接入网设备
本申请要求于2017年09月28日提交中国专利局、申请号为201710901990.X、申请名称为“通信方法、终端设备和接入网设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且更具体地，涉及通信方法、终端设备和接入网设备。
背景技术
目前的通信系统中，如长期演进(long term evolution，LTE)通信系统中，逻辑信道组(logic channel group，LCG)的数量为4个。终端上报一个LCG的上行缓存数据量时，可以使用一个字节长度的缓存状态报告(buffer status report，BSR)格式来上报该LCG的上行缓存数据量。
具体地，这一个字节中有2个比特用于指示上报是这4个LCG组中的哪个LCG的上行缓存数据量，另外6个比特用于指示该LCG的上行缓存数据量。
随着通信业务越来越多样化，通信网络中的LCG的数量也会越来越多。这使得需要使用更多的比特来指示上报的是哪个LCG的上行缓存数据量。
若LCG的数据量增多后，仍然如现有通信系统中一样，使用一个字节长度的BSR格式来上报一个LCG的上行缓存数据量，则随着用于指示LCG的比特数的增多，该BSR格式中用于指示上行缓存数据量的比特数会减少。过少的比特会导致终端不能准确上报数值过大的上行缓存数据量，从而影响上行缓存数据量的上报完整性。
因此，如何提高LCG的上行缓存数据量的上报完整性，是一个亟待解决的问题。
发明内容
本申请提供的通信方法和终端设备，可以提高LCG的上行缓存数据量的上报完整性。
第一方面，本申请提供了一种BSR的通信方法。该通信方法包括：终端设备确定当前存在待上报缓存数据的逻辑信道组LCG的个数；所述终端设备确定只有一个LCG存在待上报缓存数据时，从多种BSR格式中确定一种BSR格式，作为第一目标BSR格式，所述多种BSR格式是所述终端设备根据上行缓存数据量范围的不同上报不同的BSR所使用的多种格式；所述终端设备通过所述第一目标BSR格式向接入网设备发送目标BSR，所述目标BSR用于指示所述一个LCG的上行缓存数据量。
该通信方法中，终端设备可以从多种BSR格式中选取合适的BSR格式上报这一个LCG的上行缓存数据量，从而可以提高上报完整性。
结合第一方面，在第一种可能的实现方式中，所述多种BSR格式包括第一BSR格式和第二BSR格式，所述第一BSR格式是所述终端设备根据第一数据量阈值内的缓存数据 量上报BSR使用的格式，所述第二BSR格式是所述终端设备根据第二数据量阈值内的缓存数据量上报BSR使用的格式。
其中，所述终端设备从多种BSR格式中确定一种BSR格式，作为第一目标BSR格式，包括：所述一个LCG的上行缓存数据量小于或等于所述第一数据量阈值时，所述终端设备将所述第一BSR格式确定为所述第一目标BSR格式；所述一个LCG的上行缓存数据量大于所述第一数据量阈值时，所述终端设备将所述第二BSR格式确定为所述第一目标BSR格式。
结合第一种可能的实现方式，在第二种可能的实现方式中，使用所述第一BSR格式发送的BSR占用一个字节，使用所述第二BSR格式发送的BSR占用两个或两个以上字节。
结合第二种可能的实现方式，在第三种可能的实现方式中，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段占用5个比特，使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段占用8个比特。
结合第一种可能的实现方式，在第四种可能的实现方式中，使用所述第一BSR格式发送的BSR和使用所述第二BSR格式发送的BSR均占用一个字节。
结合第四种可能的实现方式，在第五种可能的实现方式中，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段和使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段均占用5个比特。
结合第二种至第五种中任意一种可能的实现方式，在第六种可能的实现方式中，所述第一BSR格式为短BSR格式，所述第二BSR格式为长BSR格式；或者，所述第一BSR格式和所述第二BSR格式均为短BSR格式。
结合第一方面，在第七种可能的实现方式中，所述多种BSR格式包括第三BSR格式和第四BSR格式，所述终端设备确定有多个LCG存在待上报上行缓存数据时，判断当前上行资源是否足够用来上报所述多个LCG的上行缓存数据量；所述当前上行资源不够用于上报所述多个LCG的缓存数据量信息时，若所述当前上行资源量只能容纳一个字节，则所述终端设备将所述第三BSR格式确定为第二目标BSR格式，否则，所述终端设备将所述第四BSR格式确定为第二目标BSR格式；所述终端设备使用所述第二目标BSR格式向所述接入网设备发送截断BSR，所述截断BSR中包括所述多个LCG中的部分LCG的上行缓存数据量；其中，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述截断BSR格式是所述终端设备发送截断BSR使用的格式，所述截断BSR用于上报所述多个LCG中的部分LCG的上行缓存数据量。
可选地，所述第四BSR格式与灵活的长BSR格式可以相同。
第二方面，本申请提供了一种BSR的通信方法，包括：
接入网设备接收终端设备通过第一目标BSR格式发送的目标BSR，所述目标BSR用于指示所述一个LCG的上行缓存数据量；
其中，所述第一目标BSR格式是所述终端设备确定只有一个逻辑信道组LCG存在待上报缓存数据时，从多种BSR格式中确定的一种BSR格式，所述多种BSR格式是所述终端设备根据上行缓存数据量范围的不同上报不同的BSR所使用的多种格式。
该通信方法中，接入网设备可以接收终端设备灵活发送的BSR，可以提高上行缓存数据量的上报完整性。
结合第一方面，在第一种可能的实现方式中，所述多种BSR格式包括第一BSR格式和第二BSR格式，所述第一BSR格式是所述终端设备根据第一数据量阈值内的缓存数据量上报BSR使用的格式，所述第二BSR格式是所述终端设备根据第二数据量阈值内的缓存数据量上报BSR使用的格式。
结合第一种可能的实现方式，在第二种可能的实现方式中，使用所述第一BSR格式发送的BSR占用一个字节，使用所述第二BSR格式发送的BSR占用两个或两个以上字节。
结合第二种可能的实现方式，在第三种可能的实现方式中，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段占用5个比特，使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段占用8个比特。
结合第一种可能的实现方式，在第四种可能的实现方式中，使用所述第一BSR格式发送的BSR和使用所述第二BSR格式发送的BSR均占用一个字节。
结合第四种可能的实现方式，在第五种可能的实现方式中，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段和使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段均占用5个比特。
结合第二种至第五种中任意一种可能的实现方式，在第六种可能的实现方式中，所述第一BSR格式为短BSR格式，所述第二BSR格式为长BSR格式，或者，所述第一BSR格式和所述第二BSR格式均为短BSR格式。
结合第一方面，在第七种可能的实现方式中，所述多种BSR格式包括第三BSR格式和第四BSR格式，所述通信方法还包括：
所述接入网设备接收所述终端设备使用第二目标BSR格式发送的BSR；
其中，当前上行资源不够用于上报所述多个LCG的缓存数据量信息时，若所述当前上行资源量只能容纳一个字节时，所述第二目标BSR格式为所述第三BSR格式，否则所述第二目标BSR格式为所述第四BSR格式；
其中，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述截断BSR格式是所述终端设备发送截断BSR使用的格式，所述截断BSR用于上报所述多个LCG中的部分LCG的上行缓存数据量。
第三方面，本申请提供了一种BSR的通信方法。该通信方法包括：终端设备确定存在待上报缓存数据的逻辑信道组LCG满足以下至少一种条件：触发上报BSR的时刻到当前时刻之间未上报过所述LCG的上行缓存数据量；所述终端设备上一次上报所述LCG的上行缓存数据量的时刻与当前时刻之间的时间间隔大于或等于时间阈值；所述终端设备上一次上报的所述LCG的上行缓存数据量与所述LCG当前的上行缓存数据量之间的数据量差值大于或等于数据量阈值；所述LCG中的逻辑信道LCH的最大优先级大于或等于优先级阈值；所述终端设备向接入网设备发送所述BSR，所述BSR用于指示所述LCG当前的上行缓存数据量。
该通信方法中，终端设备尽在一定条件下才向接入网设备上报上行缓存数据量，从而可以避免不必要的上报，进而可以节省资源。
结合第三方面，在第一种可能的实现方式中，所述终端确定触发上报BSR的时刻到当前时刻之间未上报过所述LCG的上行缓存数据量，包括：终端设备确定指示信息集合中不包含所述LCG的指示信息时，确定所述触发上报BSR的时刻到当前时刻之间未上报 过所述LCG的上行缓存数据量，所述指示信息集合中的指示信息用于指示上报过上行缓存数据量的LCG；
结合第一种可能的实现方式，在第二种可能的实现方式中，在所述终端设备向接入网设备发送BSR之后，所述通信方法还包括：所述终端设备在所述指示信息集合中添加上报过所述LCG的上行缓存数据量的指示信息。
第四方面，本申请提供了一种终端设备。该终端设备包括用于执行第一方面或第一方面中任意一种可能的实现方式中的通信方法的模块。该终端设备包括的模块可以通过软件和/或硬件方式实现。
第五方面，本申请提供了一种接入网设备。该接入网设备包括用于执行第二方面或第二方面中任意一种可能的实现方式中的通信方法的模块。该接入网设备包括的模块可以通过软件和/或硬件方式实现。
第六方面，本申请提供了一种终端设备。该终端设备包括用于执行第三方面或第三方面中任意一种可能的实现方式中的通信方法的模块。该终端设备包括的模块可以通过软件和/或硬件方式实现。
第七方面，本申请提供了一种终端设备。该终端设备包括处理器和发送器。处理器用于执行程序。当处理器执行代码时，处理器和发送器实现第一方面或第一方面中任意一种可能的实现方式中的通信方法。
可选地，该终端设备还可以包括接收器，该接收器用于接收接入网发送的信息。
可选地，该终端设备还可以包括存储器，该存储器用于存储处理器执行的代码。
第八方面，本申请提供了一种接入网设备。该接入网设备包括处理器和接收器。处理器用于执行程序。当处理器执行代码时，处理器和接收器实现第二方面或第二方面中任意一种可能的实现方式中的通信方法。
可选地，该接入网设备还可以包括发送器，该发送器用于向终端设备发送信息。
可选地，该终端设备还可以包括存储器，该存储器用于存储处理器执行的代码。
第九方面，本申请提供了一种终端设备。该终端设备包括处理器和发送器。处理器用于执行程序。当处理器执行代码时，处理器和发送器实现第三方面或第三方面中任意一种可能的实现方式中的通信方法。
可选地，该终端设备还可以包括接收器，该接收器用于接收接入网发送的信息。
可选地，该终端设备还可以包括存储器，该存储器用于存储处理器执行的代码。
第十方面，本申请提供了一种计算机可读存储介质。该计算机可读存储介质中存储用于终端设备执行的程序代码。该程序代码包括用于执行第一方面或第一方面中任意一种可能的实现方式中的通信方法的指令。
第十一方面，本申请提供了一种计算机可读存储介质。该计算机可读存储介质中存储用于终端设备执行的程序代码。该程序代码包括用于执行第二方面或第二方面中任意一种可能的实现方式中的通信方法的指令。
第十二方面，本申请提供了一种计算机可读存储介质。该计算机可读存储介质中存储用于终端设备执行的程序代码。该程序代码包括用于执行第三方面或第三方面中任意一种可能的实现方式中的通信方法的指令。
第十三方面，本申请提供了一种包含指令的计算机程序产品。当该计算机程序产品在 终端设备上运行时，使得终端设备执行第一方面或第一方面中任意一种可能的实现方式中的通信方法。
第十四方面，本申请提供了一种包含指令的计算机程序产品。当该计算机程序产品在终端设备上运行时，使得接入网设备执行第二方面或第二方面中任意一种可能的实现方式中的通信方法。
第十五方面，本申请提供了一种包含指令的计算机程序产品。当该计算机程序产品在终端设备上运行时，使得终端设备执行第三方面或第三方面中任意一种可能的实现方式中的通信方法。
第十六方面，本申请供了一种芯片系统，该芯片系统包括处理器，用于支持终端设备或接入网设备实现上述对应的方面中所涉及的功能，例如，生成或处理上述通信方法中所涉及的信息。
在一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存终端设备或接入网设备必要的程序指令和数据。该芯片系统，可以由芯片构成，也可以包含芯片和其他分立器件。
附图说明
图1是可以应用本申请实施例的通信方法的通信系统的示意性架构图；
图2是本申请一个实施例的通信方法的示意性流程图；
图3是图2所示的通信方法中的S220的详细示意图；
图4是本申请一个实施例的BSR格式的结构示意图；
图5是本申请另一个实施例的BSR格式的结构示意图；
图6是本申请另一个实施例的BSR格式的结构示意图；
图7是本申请另一个实施例的BSR的示意图；
图8是本申请另一个实施例的通信方法的示意性流程图；
图9是本申请另一个实施例的通信方法的示意性流程图；
图10是本申请一个实施例的终端设备的示意性结构图；
图11是本申请另一个实施例的接入网设备的示意性结构图；
图12是本申请另一个实施例的终端设备的示意性结构图；
图13是本申请另一个实施例的终端设备的示意性结构图；
图14是本申请另一个实施例的接入网设备的示意性结构图；
图15是本申请另一个实施例的终端设备的示意性结构图；
图16是本申请另一个实施例的BSR格式的结构示意图；
图17是是本申请另一个实施例的BSR格式的结构示意图；
图18是是本申请另一个实施例的BSR格式的结构示意图；
图19是是本申请另一个实施例的BSR格式的结构示意图；
图20是是本申请另一个实施例的BSR格式的结构示意图；
图21是是本申请另一个实施例的BSR格式的结构示意图；
图22是是本申请另一个实施例的BSR格式的结构示意图；
图23是本申请另一个实施例的通信方法的示意性流程图；
图24是本申请另一个实施例的通信方法的示意性流程图；
图25是本申请另一个实施例的终端设备的示意性结构图；
图26是本申请另一个实施例的接入网设备的示意性结构图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
图1是可以应用本申请实施例的通信方法的通信系统的架构示意图。图1所示的通信系统中可以包括接入网设备110和终端120。
图1所示的通信系统的一种示例为5G通信系统。应理解，本申请实施例并不限于图1所示的系统架构中，此外，图1中的装置可以是硬件，也可以是从功能上划分的软件或者以上二者的结合。
接入网设备110具体可以是无线接入网(Radio Access Network，RAN)设备。例如，接入网设备110的一种示例是基站(Base Station，BS)。
基站，也可称为基站设备，是一种将终端接入到无线网络的设备，包括但不限于：传输接收点(transmission reception point，TRP)、5G节点B(gNB)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如，home evolved nodeB，或home node B，HNB)、基带单元(base band unit，BBU)，或Wifi接入点(access point，AP)，或小基站设备(pico)等。
应理解，本申请实施例对基站的具体类型不作限定。采用不同无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同。为方便描述，本申请所有实施例中，上述为终端提供无线通信功能的装置统称为基站。
终端设备120可以是用户设备(user equipment，UE)。终端设备120可以经接入网设备110与一个或多个核心网(core network，CN)进行通信。终端可称为接入终端、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、无线接入网设备、用户代理或用户装置。终端可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它设备、车载设备、可穿戴设备或物联网、车辆网中的终端设备以及未来网络中的任意形态的终端设备等。
图2是本申请一个实施例的通信方法的示意性流程图。应理解，图2示出了通信方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图2中的各个操作的变形。图2所示的通信方法可以包括S210、S220和S230。
S210，终端设备确定当前存在待上报缓存数据的LCG的个数。换句话说，终端设备确定当前有几个LCG需要向接入网设备上报缓存数据的数量。
S220，终端设备确定只有一个LCG存在待上报缓存数据时，终端设备从多种BSR格式中确定一种BSR格式，作为第一目标BSR格式，终端根据这多种BSR格式上报的上行缓存数据量的范围不同。
换句话说，使用这多种BSR格式的BSR用于上报不同数据量范围内的上行缓存数据 量。
例如，使用这多种BSR格式中不同的BSR格式的BSR中用于指示上行缓存数据量的比特数不同，或者，使用这多种BSR格式中不同BSR格式的BSR中用于指示上行缓存数据量的比特数相同，但对应的缓存大小等级(buffer size levels)不同。
在S220中，由于终端可以从多种BSR格式中确定一种BSR格式作为上报这一个LCG的上行缓存数据量的第一目标BSR格式，且使用这多种BSR格式的BSR分别用于指示不同数据量范围内的上行缓存数据量，从而使得终端可以确定出合适的BSR格式来上报该LCG的上行缓存数据量，进而可以提高该LCG的上行缓存数据量的上报完整性。
S220中，终端设备根据多种BSR格式上报的上行缓存数据量的范围不同，可以指终端设备使用这多种BSR格式中任意一种BSR格式上报上行缓存数据量时，终端能够上报的最大上行缓存数据量与终端设备使用这多种BSR格式中其他BSR格式时能够上报的最大上行缓存数据量不相同。
例如，这多种BSR格式包括两种BSR格式时，终端设备根据一种BSR格式上报上行缓存数据时，终端设备可以上报的上行缓存数据量为第一数据量阈值内的上行缓存数据量，即终端可以上报的最大上行缓存数据量等于第一数据量阈值；终端设备根据另一种BSR格式上报上行缓存数据时，终端设备可以上报的上行缓存数据量为第二数据量阈值内的上行缓存数据量，即终端设备可以上报的最大上行缓存数据量等于第二数据量阈值。
其中，第一数据量阈值可以小于第二数据量阈值。
第一数据量阈值的一个示例为1326字节，第二数据量阈值的一个示例为15000字节。
为了后续描述方便，将可以上报的最大上行缓存数据量为第一数据量阈值内的上行缓存数据量的BSR格式称为第二BSR，将可以上报的最大上行缓存数据量为第二数据量阈值内的上行缓存数据量的BSR格式称为第二BSR格式。
S220中的多种BSR格式包括第一BSR格式和第二BSR格式时，如图3所示，S220的一种可能的实现方式为S221。
S221，终端设备确定只有一个LCG存在待上报缓存数据时，若该LCG的上行缓存数据量小于或等于第一数据量阈值，则终端设备将第一BSR格式确定为第一目标BSR格式；若LCG的上行缓存数据量大于第一数据量阈值，则终端设备将第二BSR格式确定为第一目标BSR格式。
例如，第一BSR格式用于上报1326字节内的上行缓存数据量，第二BSR格式用于上报15000字节内的上行缓存数据量时，若该LCG的上行缓存数据量小于或等于1326字节，则终端设备将第一BSR格式确定为第一目标BSR格式；若该LCG的上行缓存数据量大于1326字节，则终端设备将第二BSR格式确定为第一目标BSR格式。
可选的，第一数据量阈值可以是终端设备上预存的，即终端设备上根据通信协议预配置的第一数据量阈值；或者，可以是终端设备接收接入网设备发送的配置信息后，存储配置信息中的第一数据量阈值。配置消息包括系统消息、RRC消息、MAC CE或者PDCCH等。
终端设备可以接收接入网设备通过系统消息、无线资源控制(radio reference control，RRC)消息、媒体接入控制(media access control，MAC)层控制单元(control element，CE)或者物理下行控制信道(physical downlink control channel，PDCCH)等发送的该配 置信息。
下面具体介绍终端设备根据第一BSR格式和第二BSR格式如何指示不同的数据量范围。
可选地，终端设备使用第一BSR格式发送的BSR和终端设备使用第二BSR格式发送的BSR，可以使用数量不相同的比特来指示LCG的上行缓存数据量。
例如，终端设备使用第一BSR格式发送的BSR中可以使用5比特来指示LCG的上行缓存数据量，终端设备使用第二BSR格式发送的BSR中可以使用8比特来指示LCG的上行缓存数据量。由于8比特可以表示的最大数值比5比特可以表示的最大数值大，因此，终端使用第二BSR格式发送的BSR可以指示的最大上行缓存数据量比终端使用第一BSR格式发送的BSR可以指示的最大上行缓存数据量大。也即是说，第二数据量阈值比第一数据量阈值大。
终端设备使用第一BSR格式发送的BSR和终端使用第二BSR格式发送的BSR中使用数量不相同的比特来指示LCG的上行缓存数据量时，第一BSR格式的BSR的示例如图4所示。第二BSR格式的BSR示例分别如图5和图6所示。
图4所示的第一BSR格式的BSR占用一个字节。第一BSR格式中的第一字段用于指示LCG上行缓存数据量的字段，第一字段占用5比特。
应理解，图4中用于指示上行缓存数据量的5比特只是示例，不应对本申请构成限制，如6比特、7比特或8比特等均可以。此外，图4中用于指示上行缓存数据量的5比特的位置也只是示例，本申请实施例并不限制这些比特的位置。例如，第一BSR格式的BSR中可以是前5个比特用于指示LCG的上行缓存数据量。
可选地，图4中，第一BSR格式的BSR占用的一个字节中的另外3个比特可以用于指示LCG。例如，这3个比特可以通过指示LCG的标识(identity，ID)或指示LCG对应的资源调度请求(scheduling request，SR)配置信息(configuration information，config)标识来指示上报的是哪个资源请求配置组对应的上行缓存数据量。当然，这3比特也可以承载其他标识。
图4所示的第一BSR格式的BSR可以是一个字节长度的短(short)BSR。
图5所示的第二BSR格式的BSR占用两个字节。这两个字节中用于指示LCG的上行缓存数据量的字段为第二字段，第二字段可为8比特。
应理解，图5中用于指示上行缓存数据量的8比特只是示例，不应对本申请构成限制，如6比特、7比特等都可以。此外，图8中用于指示上行缓存数据量的8比特的位置也只是示例，本申请实施例并不限制这些比特的位置。例如，第二BSR格式的BSR中可以是前8个比特用于指示LCG的上行缓存数据量。
图5中的第二BSR格式包括BS上报标识、该BS上报标识对应的BS以及预留比特。其中，BS上报标识可以是逻辑信道组LCG标识，也可以是SR配置标识或是其他。该BS上报标识占用3个比特，BS上报标识对应的BS占用8个比特，预留比特占用5个比特。图5所示的第二BSR格式的BSR可以是两个字节长度的长(long)BSR，例如，灵活(flexible)的long BSR格式。
图6所示的第二BSR格式的BSR也占用两个字节。这两个字节中共有8个比特用于指示LCG的上行缓存数据量。
与图5所示的第二BSR格式的BSR不一样的是，图6中的第二BSR格式的BSR占用的两个字节中的前8个比特用于指示LCG，没有预留比特。
图6所示的第二BSR格式的BSR用于指示LCG的8比特可以通过位图(bitmap)的方式来指示上报的是哪个LCG。例如，总共有8个LCG时，这8比特中第3个比特的值为“1”，其他比特全为“0”，则说明第二BSR格式的BSR上报的是第3个LCG的上行缓存数据量。
图6所示的第二BSR格式的BSR可以是两个字节长度的long BSR，例如，flexible long BSR格式的BSR。
使用第一BSR格式的BSR中可以包括第一字段，第一字段用于指示上报的上行缓存数据量，使用第二BSR格式中可以包括第二字段，第二字段用于指示上报的上行缓存数据量。
下面以第一字段包括5个比特、第二字段包括6个比特、第一数据量阈值为1326字节、第二数据量阈值为大于15000字节的值为例，结合表1介绍第一BSR格式的BSR中的第一字段和第二BSR格式的BSR中的第二字段如何指示LCG的上行缓存数据量。
表1中的缓存大小(buffer size，BS)表示上行缓存数据量范围，该BS的单位为字节；索引(index)表示缓存上行缓存数据量的间接指示，index对应在BSR中的BS域表示对应的字节值。
例如，LCG的上行缓存数据量为1000字节时，因为1000字节小于1326字节，所以可以使用第一BSR格式。由于表1中1000字节所属的范围“967<BS≤1132”对应的索引为31，因此，第一BSR的BSR中的第一字段可以为“11111”。
又如，LCG的上行缓存数据量为2300字节时，因为2300字节大于1326字节，所以可以使用第二BSR格式。由于表1中2300字节所属的范围“2127<BS≤2490”对应的索引为35，因此，第二BSR的BSR中的第二字段可以为“100011”。
表1上行缓存数据量映射表
Figure PCTCN2018106173-appb-000001
Figure PCTCN2018106173-appb-000002
由上面这个例子可知，第一BSR格式对应的上行缓存数据映射表可以是第二BSR格 式对应的缓存大小表的一部分。
或者可以说，第一BSR格式可以与第二BSR格式共用同一个的缓存大小表(BS table)，只不过第一BSR格式只能指示缓存大小表中的一部分内容。
可选地，BS table可以是协议规定的，也可以是接入网设备配置的。不同的TB粒度(granularity)或者宽带部分(Bandwidth Part，BWP)有对应的BS table，可以预配置BWP和BS table的对应关系。其中，BWP可理解为载波的一部分，由若干个连续的物理资源块PRB(Physical Resource Block)组成，在出于省电考虑或者不需要太大带宽时，UE可以采用较窄的BWP；若不同TB granularity或BWP对应不同的BS table，UE采用哪种BWP，则UE可以采用对应的BS table。
可选地，第一BSR格式的BSR和第二BSR格式的BSR中可以使用相同数量的比特来指示LCG的上行缓存数据量。
可选地，第一BSR格式的BSR和第二BRS格式的BSR可以都占用1个字节。第一BSR格式的BSR和第二BRS格式的BSR都占用1个字节时，第一BSR格式和第二BRS格式均可以为短BSR格式。
第一BSR格式的BSR和第二BRS格式的BSR都占用1个字节时，可以分别使用5个比特来指示LCG的上行缓存数据量。此时，第一BSR格式的BSR的一种示例如图4所示，第二BSR格式的BSR的一种示例如图4所示。第一BSR格式中的第一字段占用5比特，第二BSR格式中的第二字段也占用5比特。
第一BSR格式的BSR和第二BSR格式的BSR中使用相同数量的比特来指示LCG的上行缓存数据量时，要使相同数量的比特数指示不同数据量范围的上行缓存数据量，可以通过以下方式实现：第一字段和第二字段的值相等时，第一字段的值对应的上行缓存数据量与第二字段的值对应的上行缓存数据量不同。
例如，第一字段和第二字段的比特值均为“10010”时，第一字段可以指示LCG的上行缓存数据量大于321字节，且小于或等于376字节；第二字段可以指示LCG的上行缓存数据大于200字节，且小于或等于500字节。
下面介绍第一BSR格式的BSR和第二BSR格式的BSR如何使用相同数量的比特来指示不同数据范围内的上行缓存数据量。
第一BSR格式的BSR中的第一字段的比特值与上行缓存数据量的对应关系，以及第一BSR格式的BSR中的第一字段的比特值与上行缓存数据量的对应关系可以是预先确定好的。
通常来说，第一字段和第二字段的一个比特值对应的是一个上行缓存数据量范围。用B k表示一个比特值对应的上行缓存数据量范围中的最大值时，该比特值对应的十进制数值p与B k之间可以满足如下关系：
Figure PCTCN2018106173-appb-000003
其中，B min表示BSR格式能够指示的最小上行缓存数据量，k为一个变量。
p相同时，不同的k值对应的不同的B k。也即是说，第一字段和第二字段取相同的比特值时，不同的k值使得相同的比特值对应不同的上行缓存数据量范围。
可以将k称为第一BSR格式的BSR和第二BSR格式的BSR指示的上行缓存数据量的粒度或BS步长(step)。也就是说，第一BSR格式的BSR和第二BSR格式的BSR使 用相同比特数指示上行缓存数据量时，粒度不一样。
S230，终端设备通过第一目标BSR格式向接入网设备发送目标BSR，该目标BSR指示该LCG的上行缓存数据量。
LCG的上行缓存数据量可以是该LCG中包括的所有逻辑信道(logic channel，LCH)上的上行缓存数据量的总和。
例如，总共有8个LCG，此时，仅有第3个LCG存在待上报的缓存数据，且第3个LCG的上行缓存数据量为2300字节时，终端可以采用第二BSR格式来发送目标BSR，目标BSR指示第3个LCG的上行缓存数据量为2300字节。
目标BSR为图4所示的第二BSR格式的BSR时，目标BSR中可以包括如图7所示的内容。
S230中，可选地，目标BSR的MAC子头中还可以包括LCID，该LCID用于指示目标BSR使用的是哪种BSR格式。
图2所示的通信方法中，可选地，该多种BSR格式还包括第三BSR格式和第四BSR格式，第三BSR格式和第四BSR格式均为截断BSR格式，终端设备使用截断BSR格式发送的截断BSR用于上报存在待上报缓存数据的所有LCG中的部分LCG的上行缓存数据量。
相应地，图2所示的通信方法还可以包括：终端设备确定有多个LCG存在待上报上行缓存数据时，判断当前上行资源是否足够用来上报这多个LCG的上行缓存数据量；当前上行资源不够用于上报这多个LCG的缓存数据量信息时，若当前上行资源量只能容纳一个字节，则终端设备将第三BSR格式确定为第二目标BSR格式，否则，终端设备将第四BSR格式确定为第二目标BSR格式；终端设备使用第二目标BSR格式向接入网设备发送截断BSR，截断BSR中包括上报该多个LCG中的部分LCG的上行缓存数据量。
可选地，所述第三BSR格式和第四BSR格式均为截断BSR格式，所述第三BSR格式发送的BSR占用一个字节，所述第四BSR格式发送的BSR占用两个或两个以上字节。所述第三BSR格式发送的BSR中用于指示上报的上行缓存数据量的第三字段占用5个比特，使用第四BSR格式发送的BSR中用于指示上报的上行缓存数据量的第四字段占用8比特。
可以理解，所述第三字段占用5比特仅为举例，实际占用比特数不做限制；此外，所述第四字段占用8比特也为举例，实际占用比特数可为其他数值。
可选地，所述第三BSR格式为短BSR格式，所述第四BSR格式可以是和长BSR格式相同。
可选地，长BSR格式上报每个LCG的上行缓存数据量的结构可为以下几种：
(1)LCG ID+BS；只报有数据待发送的LCG；用LCG ID来指示presence of BS for LCG；
(2)bitmap+BS，只报有数据待发送的LCG；用bitmap来指示presence of BS for LCG；
可以理解的是，上述提到的LCG ID可以为其他形式ID。例如，可以为SR configuration ID或其他。
对应的，截断BSR上报每个LCG的BS时，遵循与长BSR上报各LCG BS时使用的相同结构。
如图23所示，本申请中还提供了一种上报BSR的通信方法。该通信方法包括：S2310，终端设备确定有多个LCG存在待上报上行缓存数据时，判断当前上行资源是否足够用来上报所述多个LCG的上行缓存数据量；S2320，所述当前上行资源不够用于上报所述多个LCG的缓存数据量信息时，若所述当前上行资源只能容纳一个字节，则所述终端设备将第三BSR格式确定为第二目标BSR格式，否则，所述终端设备将第四BSR格式确定为第二目标BSR格式；S2330，所述终端设备使用所述第二目标BSR格式向接入网设备发送截断BSR，所述截断BSR中包括所述多个LCG中的部分LCG的上行缓存数据量；其中，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述截断BSR格式是所述终端设备发送截断BSR使用的格式，所述截断BSR用于上报所述多个LCG中的部分LCG的上行缓存数据量。
上述当前上行资源可以是终端从接入网设备请求的用于传输BSR的资源，也可以是终端传输上行数据后剩余的资源。或者，上述当前资源可以是用于上报所述多个LCG的缓存数据量信息的资源。
第三BSR格式可以是短截断BSR格式(short truncated BSR格式)。第四BSR格式可以是长截断BSR格式(long truncated BSR格式)。
在一些可能的实现方式中，使用所述第三BSR格式发送的BSR可以占用一个字节，使用所述第四BSR格式发送的BSR可以占用两个或两个以上字节。
在一些可能的实现方式中，所述第三BSR格式包括第三字段，其中，所述第三字段可以占用5个比特，所述第三字段用于指示所述部分LCG中的一个LCG的上行缓存数据量。
第三BSR格式的一种示例如图16所示。如图16所示，LCG ID表示逻辑信道组标识，缓存大小(buffer size)表示LCG ID对应的LCG的上行缓存数据量大小，此缓存大小可以是一个索引(index)值，此索引值和上行缓存数据量范围之间有一个对应关系。终端设备可以根据该对应关系和自己待发送的上行缓存数据量，确定短截断BSR中的缓存大小的取值，即索引值。
当剩余资源不够，例如，剩余资源仅能发送一个LCG的上行缓存数据量时，可以从多个LCG中确定优先级最高的LCG并上报该LCG的上行缓存数据量。该优先级最高的LCG可以指有上行缓存数据量上报且优先级最高的LCH所在的LCG。此时，短截断BSR中的LCG ID为优先级最高的LCG的ID，缓存大小域即为该优先级最高的LCG对应的上行缓存数据量。其中，LCG ID可以占用3比特，缓存大小域可以占用5比特。
在一些可能的实现方式中，所述第四BSR格式包括第四字段，其中，所述第四字段可以占用8比特，所述第四字段用于指示所述终端设备的8个LCG是否有上行缓存数据量上报。
例如，第四BSR格式的BSR可以通过位图的方式来指示多个LCG是否有上行缓存数据量上报。通过位图的方式来指示多个LCG是否有上行缓存数据量上报是指：通过多个比特来指示这多个LCG是否有上行缓存数据量上报，这多个比特与这多个LCG一一对应，这多个比特中的每个比特用于指示该比特对应的LCG是否有上行缓存数据量上报。例如，这多个比特中的每个比特的取值可以为“1”或“0”，其中，比特值“1”可以指示对应的LCG有上行缓存数据量上报，比特值“0”可以指示对应的LCG没有上行缓存数据量上报。
第四BSR格式的一种示例如图17所示。其中，LCGi用于指示索引为i的LCG是否有上行缓存数据量要上报，i可以从0取到7。
若LCGi置为1，此域标识索引为i的LCG有上行缓存数据量待上报；若LCGi置为0，则说明索引为i的LCG没有上行缓存数据量要上报。对于每个LCG，可以用8个比特来指示该LCG的上行缓存数据量的缓存大小。图17中的m可以取1至8中的任意值，例如，m的值等于有上行缓存数据量上报的LCG的数量。若没有LCG存在待上报的上行缓存数据量，则可以不上报缓存大小。
例如，第四BSR格式的BSR可以通过8个比特来指示8个LCG是否有上行缓存数据量上报，这8个比特与这8个LCG一一对应，这8个比特中的每个比特指示这8个LCG中对应的LCG是否有上行缓存数据量上报。
例如，如图18所示，总共有8个LCG时，用于指示这8个LCG是否有上行缓存数量上报的位图包括8个比特。若这8比特中第3个比特的值为“1”，第四个比特的值为“1”，其他比特全为“0”，则说明第四BSR格式的BSR上报的是索引为2的LCG和索引为3的LCG的上行缓存数据量，其中，用于上报索引为2的LCG的上行缓存数据量的字段可以占8个比特，用于上报索引为3的LCG的上行缓存数据量的字段也可以占8个比特。
在一些可能的实现方式中，所述终端设备使用所述第二目标BSR格式向所述接入网设备发送截断BSR，可以包括：所述终端设备按照所述多个LCG的优先级，使用所述第二目标BSR格式向所述接入网设备发送所述截断BSR；其中，所述多个LCG中每个LCG的逻辑信道LCH的最高优先级作为所述每个LCG的优先级。
也就说，当前上行资源不够发送这多个LCG时，终端可以根据这多个LCG的优先级确定向接入网设备发送这多个LCG中的哪些LCG。这多个LCG的优先级可以通过这多个LCG中包括的LCH的优先级来确定。
例如，有N个LCG，每个LCG中包括多个逻辑信道(logical channel，LCH)，每个LCH都具有不同的优先级。每个LCG将自身包括的LCH中的最高优先级作为该LCG的优先级。终端设备可以按照优先级从高到低的顺序将这多个LCG排序。终端设备根据上行资源能够发送的LCG的数量M，将排在前M个LCG的上行缓存数据量信息承载在BSR中发送给网络侧设备。其中，N为大于1的整数，M为大于或等于1的整数，且M小于N。
例如，有8个LCG，依次记为LCG0至LCG7。应理解，此处的排序并不代表着8个LCG的优先级。这8个LCG中每个LCG以自身包括的LCH中优先级最高的LCH的优先级作为该LCG的优先级。这8个LCG按照优先级从高到低进行排序的结果为：LCG5、LCG3、LCG6、LCG4、LCG1、LCG2、LCG7和LCG0。
终端设备确定用于发送BSR的上行资源只能够发送两个LCG的上行缓存数据量时，若当前终端设备确定只能发送LCG5和LCG3(优先级排在前两位)的缓存数据量信息，在一种可能的实现方式中，如图19所示，将第一字节对应的LCGi位置为1，即将LCG5和LCG3对应的比特置为1；而后相应的缓存大小域中，也按照LCG优先级顺序放置对应LCG的缓存状态信息，即先放置LCG5的上行缓存数据量信息，然后放置LCG3的上行缓存数据量信息。
在另一种可能的实现方式中，如图20所示，将第一字节对应的LCGi位置为1，即将 LCG5和LCG3对应的比特置为1，并且按照LCG ID大小来放置缓存大小，即先放置LCG3的上行缓存数据量信息，然后放置LCG5的上行缓存数据量信息。
接入网设备相应地可以根据LCG优先级在确定终端设备上报的是哪些LCG的上行缓存数据量，以及确定这些LCG的上行缓存数据量。
应理解，图19和图20的第一个字节中，依次记录用于指示LCG7至LCG0是否有上行缓存数据量上报的比特值，这个记录顺序并不代表这8个LCG的优先级。可选地，该字节中，可以按照任意的顺序来记录用于指示LCG7至LCG0是否有上行缓存数据量上报的比特值。例如，该字节中可以依次记录用于指示LCG0、LCG1、LCG2、LCG3、LCG4、LCG5、LCG6和LCG7是否有上行缓存数据量上报的比特值。只要终端设备与接入网设备之间均能够获知该记录顺序即可。
在一些可能的实现方式中，该通信方法还可以包括：所述终端设备向所述接入网设备发送第一指示信息，其中，所述第一指示信息用于指示发送所述截断BSR使用的BSR格式。
也就是说，终端设备还可以向接入网设备发送指示信息(即第一指示信息)，该指示信息用于指示发送上行缓存数据量的BSR使用的是哪种BSR格式，或者说用于指示方上行缓存数据量的BSR的类型。
例如，第一指示信息可以是LCID取值。不同的LCID取值用于指示不同BSR格式，或者说，不同的LCID用于指示不同的BSR类型。该LCID可以位于MAC子头(subheader)中，终端设备可以通过解析MAC子头中的LCID域，得到第一指示信息，从而获知BSR格式和/或获知BSR类型。LCID取值表格可参见表2。
表2LCID取值表
Figure PCTCN2018106173-appb-000004
Figure PCTCN2018106173-appb-000005
在一些可能的实现方式中，所述通信方法还可以包括：所述终端设备向所述接入网设备发送第二指示信息，其中，所述第二指示信息用于指示所述截断BSR的长度。
也就是说，终端设备还可以向接入网设备发送指示信息(即第二指示信息)，该指示信息用于指示该BSR的长度。
第二指示信息可以是MAC子头中指示长度的长度域(Length field)，此长度域对应的比特数可以是8或16，或者是其他数值，这里不做限定。如图21所示，长度域“L”占用8个比特；如图22所示，长度域“L”占用16个比特。图21和图22中，R域指示该域为预留的；F(Format field)域用于指示长度域的大小，例如，F域取值为0表示长度域L占用8个比特；F域取值为1表示长度域L占用16比特。
如图24所示，本申请中还提供了一种上报BSR的通信方法。该通信方法包括：S2410，接入网设备接收终端设备使用第二目标BSR格式发送的BSR。
其中，当前上行资源不够用于上报多个LCG的缓存数据量信息时，若所述当前上行资源量只能容纳一个字节，所述第二目标BSR格式为第三BSR格式，否则所述第二目标BSR格式为第四BSR格式。
其中，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述截断BSR格式是所述终端设备发送截断BSR使用的格式，所述截断BSR用于上报所述多个LCG中的部分LCG的上行缓存数据量。
在一些可能的实现方式中，使用所述第三BSR格式发送的BSR占用一个字节，使用所述第四BSR格式发送的BSR占用两个或两个以上字节。
在一些可能的实现方式中，所述第三BSR格式包括第三字段，其中，所述第三字段占用5个比特，所述第三字段用于指示所述部分LCG中的一个LCG的上行缓存数据量。
在一些可能的实现方式中，所述第四BSR格式包括第四字段，其中，所述第四字段占用8比特，所述第四字段用于指示所述终端设备的8个LCG是否有上行缓存数据量上报。
在一些可能的实现方式中，所述接入网设备接收终端设备使用第二目标BSR格式发送的BSR，包括：
所述接入网设备按照所述多个LCG的优先级，接收所述终端设备使用所述第二目标BSR发送的BSR，其中，所述多个LCG中每个LCG的逻辑信道LCH的最高优先级作为所述每个LCG的优先级，所述部分LCG的优先级高于所述多个LCG中其他LCG的优先级。
在一些可能的实现方式中，所述通信方法还包括：所述接入网设备从所述终端设备接收第一指示信息，其中，所述第一指示信息用于指示所述第二目标BSR格式。
在一些可能的实现方式中，所述通信方法还包括：所述接入网设备从所述终端设备接收第二指示信息，其中，所述第二指示信息用于指示使用所述第二目标BSR格式发送的BSR的长度。
图24所示的通信方法与图23所示的通信方法相对应，为了简洁，此处不再赘述。
本申请另一个实施例中，在如下情况下“终端设备使用第一BSR格式发送的BSR中用于指示上行缓存数据量的第一字段与终端设备使用第二BSR格式发送的BSR中用于指示上行缓存数据量的第二字段包括相同数量的比特，且第一字段与第二字段的比特值相同时，第一字段的比特值指示的上行缓存数据量与第二字段的比特值指示的上行缓存数量不同”，S220的一种实现方式为：终端设备根据该LCG的上报精度从第一BSR格式和第二BSR格式中确定第一目标BSR格式。
第一BSR格式的BSR指示第一数据量阈值内的上行缓存数据量，第二BSR格式的BSR指示第二数据量阈值内的上行缓存数据量，且第一数据量阈值小于第二数据量阈值的情况下，若该LCG的上报精度高，则终端设备将第一BSR格式确定为第一目标BSR格式；若该LCG的上报精度低，则终端设备将第二BSR格式确定为第一目标BSR格式。
该上报精度即为前面所述的粒度。上报精度高，即前述公式中的p值小，上报精度低，即前述公式中的p值大。
该LCG的上报精度可以是终端设备从接入网设备接收的。
上述当前上行资源可以是终端从接入网设备请求的用于传输BSR的资源，也可以是终端传输上行数据后剩余的资源。
可选地，终端设备还可以向接入网设备发送指示信息，该指示信息用于指示发送上行缓存数据量的BSR使用的是哪种BSR格式。
可选地，终端设备还可以向接入网设备发送指示信息，该指示信息用于指示该BSR的长度。
当前上行资源不够发送这多个LCG时，终端可以根据这多个LCG的优先级确定向接入网设备发送这多个LCG中的哪些LCG。
这多个LCG的优先级可以通过这多个LCG中包括的LCH的优先级来确定。
例如，有N个LCG，每个LCG中包括多个逻辑信道(logical channel，LCH)，每个LCH都具有不同的优先级。每个LCG将自身包括的LCH中的最高优先级作为该LCG的优先级。终端设备可以按照优先级从高到低的顺序将这多个LCG排序。终端设备根据上行资源能够发送的LCG的数量M，将排在前M个LCG的LCG ID以图4的格式发送BSR。其中，N为大于1的整数，M为大于或等于1的整数，且M小于N。
本申请另一个实施例中，在如下情况下“终端设备使用第一BSR格式发送的BSR中用于指示上行缓存数据量的第一字段与终端设备使用第二BSR格式发送的BSR中用于指示上行缓存数据量的第二字段包括相同数量的比特，且第一字段与第二字段的比特值相同时，第一字段的比特值指示的上行缓存数据量与第二字段的比特值指示的上行缓存数量不同”，S220的一种实现方式为：终端设备根据该LCG的上报精度从第一BSR格式和第二BSR格式中确定第一目标BSR格式。
第一BSR格式的BSR指示第一数据量阈值内的上行缓存数据量，第二BSR格式的BSR指示第二数据量阈值内的上行缓存数据量，且第一数据量阈值小于第二数据量阈值的情况下，若该LCG的上报精度高，则终端设备将第一BSR格式确定为第一目标BSR格式；若该LCG的上报精度低，则终端设备将第二BSR格式确定为第一目标BSR格式。
该上报精度即为前面所述的粒度。上报精度高，即前述公式中的p值小，上报精度低，即前述公式中的p值大。
该LCG的上报精度可以是终端设备从接入网设备接收的。
本申请另一个实施例的通信方法的示意性流程图如图8所示。应理解，图8示出了通信方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图8中的各个操作的变形。图8所示的通信方法可以包括S810。
S810，接入网设备接收终端设备通过第一目标BSR格式发送的目标BSR，所述目标BSR用于指示所述一个LCG的上行缓存数据量,。
其中，所述第一目标BSR格式是所述终端设备确定只有一个逻辑信道组LCG存在待上报缓存数据时，从多种BSR格式中确定的一种BSR格式，所述多种BSR格式是所述终端设备根据上行缓存数据量范围的不同上报不同的BSR所使用的多种格式。
图8所示的通信方法中的接入网设备可以是图2所示的通信方法中的接入网设备，图2所示的通信方法中的相关技术特征同样可以使用与图8所示的通信方法中。此处不再赘述。
本申请另一个实施例的通信方法的示意性流程图如图9所示。应理解，图9示出了通信方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图9中的各个操作的变形。图9所示的通信方法可以包括S910和S920。
S910，终端设备确定存在待上报缓存数据的LCG满足以下至少一种条件：触发上报BSR的时刻到当前时刻之间未上报过该LCG的上行缓存数据量，终端设备上一次上报该LCG的上行缓存数据量的时刻与当前时刻之间的时间间隔大于或等于时间阈值，终端设备上一次上报的该LCG的上行缓存数据量与该LCG当前的上行缓存数据量之间的数据量差值大于或等于数据量阈值，该LCG中的LC的最大优先级大于或等于优先级阈值。
例如，终端设备为每个LCG维护一个变量，用于记录每个LCG之前是否上报过上行缓存数据量，若LCG有上报，则该LCG对应的变量可以设置为1，否则，可以将该LCG对应的变量设置为0。
根据上述方法，可以避免终端设备重复上报同一个LCG的上行缓存数据量，也避免接入网设备为同一个终端设备的相同LCG重复分配上行资源，从而节省资源。
其中，若同一个LCG的相邻2次上报时间间隔小于时间阈值，说明此部分等待时间终端设备还可以接收，接入网设备可能正在为该终端设备分配资源，终端设备没必要再重复上报；否则，当同一个LCG的相邻2次上报时间间隔大于该时间阈值，说明终端设备已经长时间得不到资源分配，超过了终端设备所能忍受的限制，必须要上报BS告知接入网设备自己的资源需求。
若同一个LCG的相邻2次上报的数据量小于数据量阈值，说明终端设备所需的资源量还不是很多，没必要为了这部分资源需求再次向接入网设备发送BS来申请资源；反之，当终端设备上一次上报的该LCG的上行缓存数据量与该LCG当前的上行缓存数据量之间 的数据量差值大于或等于数据量阈值时，说明终端设备已经有很多数据量堆积，超过了自己所能够容忍的限制，需要再次上报。
若某个LCG中LCH的优先级最高的优先级大于或等于优先级阈值，说明终端设备此时该LCG待上报的数据对于该终端设备而言优先级较高，上报需求比较迫切。
S920，终端向接入网设备发送BSR，该BSR用于指示该LCG当前的上行缓存数据量。
换句话说，终端设备确定存在待上报缓存数据的LCG不满足以下至少一种条件：触发上报BSR的时刻到当前时刻之间已上报过该LCG的上行缓存数据量，终端设备上一次上报该LCG的上行缓存数据量的时刻与当前时刻之间的时间间隔小于时间阈值，终端设备上一次上报的该LCG的上行缓存数据量与该LCG当前的上行缓存数据量之间的数据量差值小于数据量阈值，该LCG中的LCH的最大优先级小于优先级阈值时，终端设备不发送指示该LCG当前上行缓存数据量的BSR。
由此可知，该通信方法可以避免LCG的上行缓存数据量的重复上报，从而可以节省资源。
S910中，终端确定触发上报BSR的时刻到当前时刻之间未上报过LCG的上行缓存数据量，可以通过以下方式实现：
终端确定指示信息集合中不包含该LCG的指示信息时，确定触发上报BSR的时刻到当前时刻之间未上报过该LCG的上行缓存数据量，该指示信息集合中的指示信息用于指示上报过上行缓存数据量的LCG。
相应地，终端设备发送BSR之后，该通信方法还包括：终端设备在指示信息集合中添加上报过该LCG的上行缓存数据量的指示信息。
例如，终端设备上可以维护一个变量集合，该变量集合中的变量用于记录哪个LCG的上行缓存数据在触发上报BSR的时刻到当前时刻之间已经上报过了。
终端设备当前要发送BSR时，可以查询该变量集合中有无记录该LCG的上行缓存数据量已经上报过的变量。若有，则终端设备不上报该LCG的上行缓存数据量；否则，终端设备上报该LCG的上行缓存数据量，并且在变量集合中使用变量记录该LCG的上行缓存数据量已上报过。
S910中，终端设备确定上一次上报该LCG的上行缓存数据量的时刻与当前时刻之间的时间间隔大于或等于时间阈值，可以通过以下方式实现：终端设备上可以维护一个定时器。该定时器从终端设备上一次上报该LCG的上行缓存数据量开始计时。若当前时刻超过定时器的定时，则终端设备可以上报该LCG的上行缓存数据量；否则不上报。
在终端设备执行S910之前，该通信方法还可以包括：终端设备从接入网设备接收以下至少一个信息：时间阈值、数据量阈值和优先级阈值。
这样，在终端设备执行S910时，就可以使用时间阈值、数据量阈值或优先级阈值了。
本申请另一个实施例的通信方法可以包括：
接入网设备接收终端设备发送的BSR，该BSR中包括LCG的上行缓存数据量；
接入网设备确定该BSR对应的LCG满足以下至少一种条件：终端设备触发上报BSR的时刻到当前时刻之间未接收过该LCG的上行缓存数据量，终端设备上一次上报该LCG的上行缓存数据量的时刻与当前时刻之间的时间间隔大于或等于时间阈值，终端设备上一次接收的该LCG的上行缓存数据量与该LCG当前的上行缓存数据量之间的数据量差值大 于或等于数据量阈值，该LCG中的LC的最大优先级大于或等于优先级阈值；
接入网设备向终端分配资源，该资源用于终端上报该LCG的上行缓存数据量对应的缓存数据。
换句话说，接入网确定存在该LCG不满足以下至少一种条件：终端设备触发上报BSR的时刻到当前时刻之间已上报过该LCG的上行缓存数据量，终端设备上一次上报该LCG的上行缓存数据量的时刻与当前时刻之间的时间间隔小于时间阈值，终端设备上一次上报的该LCG的上行缓存数据量与该LCG当前的上行缓存数据量之间的数据量差值小于数据量阈值，该LCG中的LC的最大优先级小于优先级阈值时，接入网设备不给终端分配用于终端上报该LCG的上行缓存数据量对应的缓存数据的资源。
由此可知，该通信方法可以避免接入网设备重复分配资源，从而可以节省资源。
本申请另一个实施例的通信方法可以包括：接入网设备向终端设备发送第一指示信息，该第一指示信息用于指示终端设备使用第五BSR格式的BSR上报第一LCG的上行缓存数据量；接入网设备接收终端设备使用第五BSR格式的BSR上报的第一LCG的上行缓存数据量。
接入网设备可以根据LCG中各个LC上承载的业务通常对应的数据量来确定该LCG对应哪中BSR格式。
例如，LCG中包括的LC用于承载的是语音业务，语音业务对应的数据量最大为1000个字节，则接入网设备可以使用类似图2中的方法来选择合适BSR格式作为上报该LCG的上行缓存数据量的BSR格式。
相对应的，终端设备接收接入网设备发送的第一指示信息，该第一指示信息用于指示终端设备使用第五BSR格式的BSR上报第一LCG的上行缓存数据量；终端设备确定仅有第一LCG存在待发送上行缓存数据；终端设备使用第五BSR格式的BSR上报第一LCG的上行缓存数据量。
该第五BSR格式可以是前面所述的第一BSR格式，也可以是前面所述的第二BSR格式，此处不再赘述。
本申请一个实施例的终端设备的示意性结构图如图10所示。应理解，图10示出的终端设备1000仅是示例，本申请实施例的终端设备还可包括其他模块或单元，或者包括与图10中的各个模块的功能相似的模块，或者并非要包括图10中所有模块。
终端设备1000包括处理模块1010和发送模块1020。
处理模块1010，用于确定当前存在待上报缓存数据的逻辑信道组LCG的个数。
所述处理模块1010还用于：确定只有一个LCG存在待上报缓存数据时，从多种BSR格式中确定一种BSR格式，作为第一目标BSR格式，所述终端设备根据所述多种BSR格式上报的上行缓存数据量的范围不同。
发送模块1020，用于通过所述第一目标BSR格式向接入网设备发送目标BSR，所述目标BSR用于指示所述一个LCG的上行缓存数据量。
可选地，所述多种BSR格式包括第一BSR格式和第二BSR格式，所述终端设备使用所述第一BSR格式上报的上行缓存数据量小于或等于第一数据量阈值，所述终端设备使用所述第二BSR上报的上行缓存数据量小于或等于第二数据量阈值。
相应地，所述处理模块1010具体用于：
所述一个LCG的上行缓存数据量小于或等于所述第一数据量阈值时，将所述第一BSR格式确定为所述第一目标BSR格式；
所述一个LCG的上行缓存数据量大于所述第一数据量阈值时，将所述第二BSR格式确定为所述第一目标BSR格式。
可选地，使用所述第一BSR格式发送的BSR占用一个字节，使用所述第二BSR格式发送的BSR占用两个或两个以上字节。
可选地，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段占用5个比特，使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段占用8个比特。
可选地，使用所述第一BSR格式发送的BSR和使用所述第二BSR格式发送的BSR均占用一个字节。
可选地，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段和使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段均占用5个比特。
可选地，所述第一BSR格式为短BSR格式，所述第二BSR格式为长BSR格式；或者，所述第一BSR格式和所述第二BSR格式均为短BSR格式。
可选地，所述多种BSR格式包括第三BSR格式和第四BSR格式，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述终端设备使用所述截断BSR格式发送的截断BSR用于上报存在待上报缓存数据的所有LCG中的部分LCG的上行缓存数据量。
所述处理模块1010还用于：
确定有多个LCG存在待上报上行缓存数据时，判断当前上行资源是否足够用来上报所述多个LCG的上行缓存数据量；
所述当前上行资源不够用于上报所述多个LCG的缓存数据量信息时，若所述当前上行资源量只能容纳一个字节，则将所述第三BSR格式确定为第二目标BSR格式，否则，将所述第四BSR格式确定为第二目标BSR格式。
相应地，所述发送模块1020还用于：使用所述第二目标BSR格式向所述接入网设备发送截断BSR，所述截断BSR中包括所述多个LCG中的部分LCG的上行缓存数据量。
可选地，所述部分LCG中，每个LCG中的逻辑信道LC的最高优先级大于或等于所述多个LCG中除所述部分LCG外的LCG中的所有LC的优先级。
应理解，图10中的终端设备1000所包括的各个模块可以用于实现图2所示的通信方法中由数据库网元执行的相应步骤，为了简洁，此处不再赘述。
本申请一个实施例的接入网设备的示意性结构图如图11所示。应理解，图11示出的接入网设备1100仅是示例，本申请实施例的终端设备还可包括其他模块或单元，或者包括与图11中的各个模块的功能相似的模块，或者并非要包括图11中所有模块。
接收模块1110，用于接收终端设备通过第一目标BSR格式发送的目标BSR，所述目标BSR用于指示所述一个LCG的上行缓存数据量。
其中，所述第一目标BSR格式是所述终端设备确定只有一个逻辑信道组LCG存在待上报缓存数据时，从多种BSR格式中确定的一种BSR格式，所述多种BSR格式是所述终端设备根据上行缓存数据量范围的不同上报不同的BSR所使用的多种格式。
可选地，所述多种BSR格式包括第一BSR格式和第二BSR格式，所述第一BSR格式是所述终端设备根据第一数据量阈值内的缓存数据量上报BSR使用的格式，所述第二BSR格式是所述终端设备根据第二数据量阈值内的缓存数据量上报BSR使用的格式。
可选地，使用所述第一BSR格式发送的BSR占用一个字节，使用所述第二BSR格式发送的BSR占用两个或两个以上字节。
可选地，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段占用5个比特，使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段占用8个比特。
可选地，使用所述第一BSR格式发送的BSR和使用所述第二BSR格式发送的BSR均占用一个字节。
可选地，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段和使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段均占用5个比特。
可选地，所述第一BSR格式为短BSR格式，所述第二BSR格式为长BSR格式，或者，所述第一BSR格式和所述第二BSR格式均为短BSR格式。
可选地，所述多种BSR格式包括第三BSR格式和第四BSR格式。
所述接收模块1110还用于：接收所述终端设备使用第二目标BSR格式发送的BSR；
其中，当前上行资源不够用于上报所述多个LCG的缓存数据量信息时，若所述当前上行资源量只能容纳一个字节时，所述第二目标BSR格式为所述第三BSR格式，否则所述第二目标BSR格式为所述第四BSR格式；
其中，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述截断BSR格式是所述终端设备发送截断BSR使用的格式，所述截断BSR用于上报所述多个LCG中的部分LCG的上行缓存数据量。
应理解，图11中的接入网设备1100所包括的各个模块可以用于实现8所示的通信方法中由终端设备执行的相应步骤，为了简洁，此处不再赘述。
本申请另一个实施例的终端设备的示意性结构图如图12所示。应理解，图12示出的终端设备1200仅是示例，本申请实施例的终端设备还可包括其他模块或单元，或者包括与图12中的各个模块的功能相似的模块，或者并非要包括图12中所有模块。
终端设备1200包括处理模块1210和发送模块1220。
处理模块1210，用于确定存在待上报缓存数据的逻辑信道组LCG满足以下至少一种条件：
触发上报BSR的时刻到当前时刻之间未上报过所述LCG的上行缓存数据量；
所述终端设备上一次上报所述LCG的上行缓存数据量的时刻与当前时刻之间的时间间隔大于或等于时间阈值；
所述终端设备上一次上报的所述LCG的上行缓存数据量与所述LCG当前的上行缓存数据量之间的数据量差值大于或等于数据量阈值；
所述LCG中的逻辑信道LC的最大优先级大于或等于优先级阈值。
发送模块1220，用于向接入网设备发送所述BSR，所述BSR用于指示所述LCG当前的上行缓存数据量。
可选地，所述处理模块1210具体用于：
确定指示信息集合中不包含所述LCG的指示信息时，确定所述触发上报BSR的时刻到当前时刻之间未上报过所述LCG的上行缓存数据量，所述指示信息集合中的指示信息用于指示上报过上行缓存数据量的LCG。
可选地，在所述发送模块1220向接入网设备发送BSR之后，所述处理模块1210还用于：在所述指示信息集合中添加上报过所述LCG的上行缓存数据量的指示信息。
应理解，图12中的终端设备1200所包括的各个模块可以用于实现9所示的通信方法中由终端设备执行的相应步骤，为了简洁，此处不再赘述。
图13是本申请一个实施例的终端设备的示意性结构图。应理解，图13示出的终端设备1300仅是示例，本申请实施例的终端设备还可包括其他模块或单元，或者包括与图13中的各个模块的功能相似的模块，或者并非要包括图13中所有模块。
终端设备1300包括处理器1320和发送器1340。可选地，还可以包括存储器1310和/或接收器1330。接收器1330和发送器1340可以集成在一起，称为收发器。
其中，处理器1320可以用于实现图10中的处理模块1010执行的操作或步骤，发送器1340可以用于实现图10中的发送模块1020执行的操作或步骤。
接收器1330可以用于接收接入网设备发送的信息。
存储器1310，用于存储处理器1320执行的程序代码。其中，处理器1320中可以集成有存储器。
图14是本申请一个实施例的接入网设备的示意性结构图。应理解，图14示出的接入网设备1400仅是示例，本申请实施例的接入网设备还可包括其他模块或单元，或者包括与图14中的各个模块的功能相似的模块，或者并非要包括图14中所有模块。
接入网设备1400包括处理器1420和接收器1430。可选地，还可以包括存储器1410和/或发送器1420。接收器1430和发送器1440可以集成在一起，称为收发器。
其中，接收器1430可以用于实现图11中的接收模块1110执行的操作或步骤。
发送器1440可以用于向终端设备发送信息。
存储器1410，用于存储处理器1320执行的程序代码。处理器1420可以用于实现执行存储器1410中的程序代码，处理器1420中可以集成有存储器。
图15是本申请一个实施例的终端设备的示意性结构图。应理解，图15示出的终端设备1500仅是示例，本申请实施例的终端设备还可包括其他模块或单元，或者包括与图15中的各个模块的功能相似的模块，或者并非要包括图15中所有模块。
终端设备1500包括处理器1520和发送器1540。可选地，还可以包括存储器1510和/或接收器1530。接收器1530和发送器1540可以集成在一起，称为收发器。
其中，处理器1520可以用于实现图12中的处理模块1210执行的操作或步骤，发送器1540可以用于实现图12中的发送模块1220执行的操作或步骤。
接收器1530可以用于接收接入网设备发送的信息。
存储器1510，用于存储处理器1520执行的程序代码。其中，处理器1520中可以集成有存储器。
本申请一个实施例的终端设备的示意性结构图如图25所示。应理解，图25示出的终端设备2500仅是示例，本申请实施例的终端设备还可包括其他模块或单元，或者包括与 图25中的各个模块的功能相似的模块，或者并非要包括图25中所有模块。
处理模块2510，用于：确定有多个LCG存在待上报上行缓存数据时，判断当前上行资源是否足够用来上报所述多个LCG的上行缓存数据量；所述当前上行资源不够用于上报所述多个LCG的缓存数据量信息时，若所述当前上行资源量只能容纳一个字节，则将所述第三BSR格式确定为第二目标BSR格式，否则，将所述第四BSR格式确定为第二目标BSR格式。
发送模块2520，用于：使用所述第二目标BSR格式向所述接入网设备发送截断BSR，所述截断BSR中包括所述多个LCG中的部分LCG的上行缓存数据量；其中，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述截断BSR格式是所述终端设备发送截断BSR使用的格式，所述截断BSR用于上报所述多个LCG中的部分LCG的上行缓存数据量。
可选地，使用所述第三BSR格式发送的BSR占用一个字节，使用所述第四BSR格式发送的BSR占用两个或两个以上字节。
可选地，所述第三BSR格式包括第三字段，其中，所述第三字段占用5个比特，所述第三字段用于指示所述部分LCG中的一个LCG的上行缓存数据量。
可选地，所述第四BSR格式包括第四字段，其中，所述第四字段占用8比特，所述第四字段用于指示所述终端设备的8个LCG是否有上行缓存数据量上报。
可选地，所述发送模块具体用于：按照所述多个LCG的优先级，使用所述第二目标BSR向所述接入网设备发送所述截断BSR，其中，所述多个LCG中每个LCG的逻辑信道LCH的最高优先级作为所述每个LCG的优先级。
可选地，所述发送模块还用于：向所述接入网设备发送第一指示信息，其中，所述第一指示信息用于指示所述截断BSR使用的BSR格式。
可选地，所述发送模块还用于：向所述接入网设备发送第二指示信息，其中，所述第二指示信息用于指示所述截断BSR的长度。
终端设备2500可以用于执行图23所示的通信方法，为了简洁，此处不再赘述。
其中，可选地，处理模块的一种示例为处理器，发送模块的一种示例为发送器。此时，终端设备还可以包括与处理器耦合的存储器，该存储器用于存储处理器执行的程序代码。该终端设备还可以包括接收器，用于接收信息。接收器和发送器可以集成在一起，称为收发器。
可选地，终端设备2500的一种示例为芯片。此时，处理模块的一种示例为处理器，发送模块的一种示例为通信接口。终端设备2500为芯片时，还可以包括与处理器耦合的存储器，用于存储处理器执行的程序代码。
本申请一个实施例的接入网设备的示意性结构图如图26所示。应理解，图26示出的接入网设备2600仅是示例，本申请实施例的接入网设备还可包括其他模块或单元，或者包括与图26中的各个模块的功能相似的模块，或者并非要包括图26中所有模块。
接收模块2610，用于：接收所述终端设备使用第二目标BSR格式发送的BSR。
其中，当前上行资源不够用于上报所述多个LCG的缓存数据量信息时，若所述当前上行资源量只能容纳一个字节时，所述第二目标BSR格式为所述第三BSR格式，否则所述第二目标BSR格式为所述第四BSR格式。
其中，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述截断BSR格式是所述终端设备发送截断BSR使用的格式，所述截断BSR用于上报所述多个LCG中的部分LCG的上行缓存数据量。
可选地，使用所述第三BSR格式发送的BSR占用一个字节，使用所述第四BSR格式发送的BSR占用两个或两个以上字节。
可选地，所述第三BSR格式包括第三字段，其中，所述第三字段占用5个比特，所述第三字段用于指示所述部分LCG中的一个LCG的上行缓存数据量。
可选地，所述第四BSR格式包括第四字段，其中，所述第四字段占用8比特，所述第四字段用于指示所述终端设备的8个LCG是否有上行缓存数据量上报。
可选地，所述接收模块具体用于：按照所述多个LCG的优先级，接收所述终端设备使用所述第二目标BSR发送的BSR，其中，所述多个LCG中每个LCG的逻辑信道LCH的最高优先级作为所述每个LCG的优先级。
可选地，所述接收模块还用于：从所述终端设备接收第一指示信息，其中，所述第一指示信息用于指示所述第二目标BSR格式。
可选地，所述接收模块还用于：从所述终端设备接收第二指示信息，其中，所述第二指示信息用于指示使用所述第二目标BSR发送的BSR的长度。
接入网设备2600可以用于执行图24所示的通信方法，为了简洁，此处不再赘述。
其中，可选地，接收模块的一种示例为发送器。此时，接入网设备还可以包括处理器，用于执行程序代码，当处理器执行程序代码时，发送器实现图24所示的通信方法。
可选地，接入网设备还可以包括与处理器耦合的存储器，该存储器用于存储处理器执行的程序代码。该接入网设备还可以包括发送器，用于发送信息。接收器和发送器可以集成在一起，称为收发器。
可选地，接入网设备2600的一种示例为芯片。此时，发送模块的一种示例为通信接口，接入网设备还可以包括执行程序代码的处理器。当该处理器执行程序代码时，通信接口实现图24所示的通信方法。接入网设备2600为芯片时，还可以包括与处理器耦合的存储器，用于存储处理器执行的程序代码。
本申请示例还提供一种装置(例如，集成电路、无线设备、电路模块等)用于实现上述方法。实现本文描述的功率跟踪器和/或供电发生器的装置可以是自立设备或者可以是较大设备的一部分。设备可以是(i)自立的IC；(ii)具有一个或多个1C的集合，其可包括用于存储数据和/或指令的存储器IC；(iii)RFIC，诸如RF接收机或RF发射机/接收机；(iv)ASIC，诸如移动站调制解调器；(v)可嵌入在其他设备内的模块；(vi)接收机、蜂窝电话、无线设备、手持机、或者移动单元；(vii)其他等等。
本申请实施例提供的方法和装置，可以应用于终端设备或接入网设备(可以统称为无线设备)。该终端设备或接入网设备或无线设备可以包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、以及即时通 信软件等应用。并且，在本申请实施例中，本申请实施例并不限定方法的执行主体的具体结构，只要能够通过运行记录有本申请实施例的方法的代码的程序，以根据本申请实施例的传输信号的方法进行通信即可，例如，本申请实施例的无线通信的方法的执行主体可以是终端设备或接入网设备，或者，是终端设备或接入网设备中能够调用程序并执行程序的功能模块。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请实施例的范围。
此外，本申请实施例的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
应理解，在本申请实施例的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，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，机械或其它的形式。
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。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者接入网设备等)执行本申请实施例各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请实施例的具体实施方式，但本申请实施例的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请实施例的保护范围之内。

Claims (60)

  1. 一种缓存状态报告BSR的通信方法，其特征在于，包括：
    终端设备确定当前存在待上报缓存数据的逻辑信道组LCG的个数；
    所述终端设备确定只有一个LCG存在待上报缓存数据时，从多种BSR格式中确定一种BSR格式，作为第一目标BSR格式，所述多种BSR格式是所述终端设备在上报不同上行缓存数据量范围时使用的不同BSR格式；
    所述终端设备通过所述第一目标BSR格式向接入网设备发送目标BSR，所述目标BSR用于指示所述一个LCG的上行缓存数据量。
  2. 根据权利要求1所述的通信方法，其特征在于，所述多种BSR格式包括第一BSR格式和第二BSR格式，所述第一BSR格式是所述终端设备根据第一数据量阈值内的缓存数据量上报BSR使用的格式，所述第二BSR格式是所述终端设备根据第二数据量阈值内的缓存数据量上报BSR使用的格式；
    其中，所述终端设备从多种BSR格式中确定一种BSR格式，作为第一目标BSR格式，包括：
    所述一个LCG的上行缓存数据量小于或等于所述第一数据量阈值时，所述终端设备将所述第一BSR格式确定为所述第一目标BSR格式；
    所述一个LCG的上行缓存数据量大于所述第一数据量阈值时，所述终端设备将所述第二BSR格式确定为所述第一目标BSR格式。
  3. 根据权利要求2所述的通信方法，其特征在于，使用所述第一BSR格式发送的BSR占用一个字节，使用所述BSR格式发送的BSR占用两个或两个以上字节。
  4. 根据权利要求3所述的通信方法，其特征在于，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段占用5个比特，使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段占用8个比特。
  5. 根据权利要求2所述的通信方法，其特征在于，使用所述第一BSR格式发送的BSR和使用所述第二BSR格式发送的BSR均占用一个字节。
  6. 根据权利要求5所述的通信方法，其特征在于，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段和使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段均占用5个比特。
  7. 一种通信方法，其特征在于，包括：
    终端设备确定有多个LCG存在待上报上行缓存数据时，判断当前上行资源是否足够用来上报所述多个LCG的上行缓存数据量；
    所述当前上行资源不够用于上报所述多个LCG的缓存数据量信息时，若所述当前上行资源只能容纳一个字节，则所述终端设备将第三BSR格式确定为第二目标BSR格式，否则，所述终端设备将第四BSR格式确定为第二目标BSR格式；
    所述终端设备使用所述第二目标BSR格式向接入网设备发送截断BSR，所述截断BSR中包括所述多个LCG中的部分LCG的上行缓存数据量；
    其中，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述截断BSR 格式是所述终端设备发送截断BSR使用的格式，所述截断BSR用于上报所述多个LCG中的部分LCG的上行缓存数据量。
  8. 根据权利要求7所述的通信方法，其特征在于，使用所述第三BSR格式发送的BSR占用一个字节，使用所述第四BSR格式发送的BSR占用两个或两个以上字节。
  9. 根据权利要求8所述的通信方法，其特征在于，所述第三BSR格式包括第三字段，其中，所述第三字段占用5个比特，所述第三字段用于指示所述部分LCG中的一个LCG的上行缓存数据量。
  10. 根据权利要求8或9所述的通信方法，其特征在于，所述第四BSR格式包括第四字段，其中，所述第四字段占用8比特，所述第四字段用于指示所述终端设备的8个LCG是否有上行缓存数据量上报。
  11. 根据权利要求7至10中任一项所述的通信方法，其特征在于，所述终端设备使用所述第二目标BSR格式向所述接入网设备发送截断BSR，包括：
    所述终端设备按照所述多个LCG的优先级，使用所述第二目标BSR格式向所述接入网设备发送所述截断BSR；其中，所述多个LCG中每个LCG的逻辑信道LCH的最高优先级作为所述每个LCG的优先级。
  12. 根据权利要求7至11中任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述终端设备向所述接入网设备发送第一指示信息，其中，所述第一指示信息用于指示发送所述截断BSR使用的BSR格式。
  13. 根据权利要求7至12中任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述终端设备向所述接入网设备发送第二指示信息，其中，所述第二指示信息用于指示所述截断BSR的长度。
  14. 一种上报缓存状态报告BSR的通信方法，其特征在于，包括：
    接入网设备接收终端设备通过第一目标BSR格式发送的目标BSR，所述目标BSR用于指示所述一个LCG的上行缓存数据量；
    其中，所述第一目标BSR格式是所述终端设备确定只有一个逻辑信道组LCG存在待上报缓存数据时，从多种BSR格式中确定的一种BSR格式，所述多种BSR格式是所述终端设备在上报不同上行缓存数据量范围时使用的不同BSR格式。
  15. 根据权利要求14所述的通信方法，其特征在于，所述多种BSR格式包括第一BSR格式和第二BSR格式，所述第一BSR格式是所述终端设备根据第一数据量阈值内的缓存数据量上报BSR使用的格式，所述第二BSR格式是所述终端设备根据第二数据量阈值内的缓存数据量上报BSR使用的格式。
  16. 根据权利要求15所述的通信方法，其特征在于，使用所述第一BSR格式发送的BSR占用一个字节，使用所述第二BSR格式发送的BSR占用两个或两个以上字节。
  17. 根据权利要求16所述的通信方法，其特征在于，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段占用5个比特，使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段占用8个比特。
  18. 根据权利要求15所述的通信方法，其特征在于，使用所述第一BSR格式发送的 BSR和使用所述第二BSR格式发送的BSR均占用一个字节。
  19. 根据权利要求18所述的通信方法，其特征在于，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段和使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段均占用5个比特。
  20. 一种通信方法，其特征在于，包括：
    接入网设备接收终端设备使用第二目标BSR格式发送的BSR；
    其中，当前上行资源不够用于上报多个LCG的缓存数据量信息时，若所述当前上行资源量只能容纳一个字节，所述第二目标BSR格式为第三BSR格式，否则所述第二目标BSR格式为第四BSR格式；
    其中，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述截断BSR格式是所述终端设备发送截断BSR使用的格式，所述截断BSR用于上报所述多个LCG中的部分LCG的上行缓存数据量。
  21. 根据权利要求20所述的通信方法，其特征在于，使用所述第三BSR格式发送的BSR占用一个字节，使用所述第四BSR格式发送的BSR占用两个或两个以上字节。
  22. 根据权利要求21所述的通信方法，其特征在于，所述第三BSR格式包括第三字段，其中，所述第三字段占用5个比特，所述第三字段用于指示所述部分LCG中的一个LCG的上行缓存数据量。
  23. 根据权利要求21或22所述的通信方法，其特征在于，所述第四BSR格式包括第四字段，其中，所述第四字段占用8比特，所述第四字段用于指示所述终端设备的8个LCG是否有上行缓存数据量上报。
  24. 根据权利要求20至23中任一项所述的通信方法，其特征在于，所述接入网设备接收终端设备使用第二目标BSR格式发送的BSR，包括：
    所述接入网设备按照所述多个LCG的优先级，接收所述终端设备使用所述第二目标BSR发送的BSR，其中，所述多个LCG中每个LCG的逻辑信道LCH的最高优先级作为所述每个LCG的优先级，所述部分LCG的优先级高于所述多个LCG中其他LCG的优先级。
  25. 根据权利要求20至24中任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述接入网设备从所述终端设备接收第一指示信息，其中，所述第一指示信息用于指示所述第二目标BSR格式。
  26. 根据权利要求20至25中任一项所述的通信方法，其特征在于，所述通信方法还包括：
    所述接入网设备从所述终端设备接收第二指示信息，其中，所述第二指示信息用于指示使用所述第二目标BSR格式发送的BSR的长度。
  27. 一种缓存状态报告BSR的通信方法，其特征在于，包括：
    终端设备确定存在待上报缓存数据的逻辑信道组LCG满足以下至少一种条件：
    触发上报BSR的时刻到当前时刻之间未上报过所述LCG的上行缓存数据量；
    所述终端设备上一次上报所述LCG的上行缓存数据量的时刻与当前时刻之间的时间间隔大于或等于时间阈值；
    所述终端设备上一次上报的所述LCG的上行缓存数据量与所述LCG当前的上行缓存数据量之间的数据量差值大于或等于数据量阈值；
    所述LCG中的逻辑信道LC的最大优先级大于或等于优先级阈值；
    所述终端设备向接入网设备发送所述BSR，所述BSR用于指示所述LCG当前的上行缓存数据量。
  28. 根据权利要求27所述的通信方法，其特征在于，所述终端确定触发上报BSR的时刻到当前时刻之间未上报过所述LCG的上行缓存数据量，包括：
    终端设备确定指示信息集合中不包含所述LCG的指示信息时，确定所述触发上报BSR的时刻到当前时刻之间未上报过所述LCG的上行缓存数据量，所述指示信息集合中的指示信息用于指示上报过上行缓存数据量的LCG。
  29. 根据权利要求28所述的通信方法，其特征在于，在所述终端设备向接入网设备发送BSR之后，所述通信方法还包括：
    所述终端设备在所述指示信息集合中添加上报过所述LCG的上行缓存数据量的指示信息。
  30. 一种终端设备，其特征在于，包括：
    处理模块，用于确定当前存在待上报缓存数据的逻辑信道组LCG的个数；
    所述处理模块还用于：确定只有一个LCG存在待上报缓存数据时，从多种BSR格式中确定一种BSR格式，作为第一目标BSR格式，所述多种BSR格式是所述终端设备在上报不同上行缓存数据量范围时使用的不同BSR格式；
    发送模块，用于通过所述第一目标BSR格式向接入网设备发送目标BSR，所述目标BSR用于指示所述一个LCG的上行缓存数据量。
  31. 根据权利要求30所述的终端设备，其特征在于，所述多种BSR格式包括第一BSR格式和第二BSR格式，所述第一BSR格式是所述终端设备根据第一数据量阈值内的缓存数据量上报BSR使用的格式，所述第二BSR格式是所述终端设备根据第二数据量阈值内的缓存数据量上报BSR使用的格式；
    其中，所述处理模块具体用于：
    所述一个LCG的上行缓存数据量小于或等于所述第一数据量阈值时，将所述第一BSR格式确定为所述第一目标BSR格式；
    所述一个LCG的上行缓存数据量大于所述第一数据量阈值时，将所述第二BSR格式确定为所述第一目标BSR格式。
  32. 根据权利要求31所述的终端设备，其特征在于，使用所述第一BSR格式发送的BSR占用一个字节，使用所述第二BSR格式发送的BSR占用两个或两个以上字节。
  33. 根据权利要求32所述的终端设备，其特征在于，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段占用5个比特，使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段占用8个比特。
  34. 根据权利要求31所述的终端设备，其特征在于，使用所述第一BSR格式发送的BSR和使用所述第二BSR格式发送的BSR均占用一个字节。
  35. 根据权利要求34所述的终端设备，其特征在于，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段和使用所述第二BSR格式发送的BSR 中用于指示上报的上行缓存数据量的第二字段均占用5个比特。
  36. 一种终端设备，其特征在于，包括：
    处理模块，用于：
    确定有多个LCG存在待上报上行缓存数据时，判断当前上行资源是否足够用来上报所述多个LCG的上行缓存数据量；
    所述当前上行资源不够用于上报所述多个LCG的缓存数据量信息时，若所述当前上行资源量只能容纳一个字节，则将所述第三BSR格式确定为第二目标BSR格式，否则，将所述第四BSR格式确定为第二目标BSR格式；
    发送模块，用于：
    使用所述第二目标BSR格式向所述接入网设备发送截断BSR，所述截断BSR中包括所述多个LCG中的部分LCG的上行缓存数据量；
    其中，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述截断BSR格式是所述终端设备发送截断BSR使用的格式，所述截断BSR用于上报所述多个LCG中的部分LCG的上行缓存数据量。
  37. 根据权利要求36所述的终端设备，其特征在于，使用所述第三BSR格式发送的BSR占用一个字节，使用所述第四BSR格式发送的BSR占用两个或两个以上字节。
  38. 根据权利要求37所述的终端设备，其特征在于，所述第三BSR格式包括第三字段，其中，所述第三字段占用5个比特，所述第三字段用于指示所述部分LCG中的一个LCG的上行缓存数据量。
  39. 根据权利要求37或38所述的终端设备，其特征在于，所述第四BSR格式包括第四字段，其中，所述第四字段占用8比特，所述第四字段用于指示所述终端设备的8个LCG是否有上行缓存数据量上报。
  40. 根据权利要求36至39中任一项所述的终端设备，其特征在于，所述发送模块具体用于：
    按照所述多个LCG的优先级，使用所述第二目标BSR向所述接入网设备发送所述截断BSR，其中，所述多个LCG中每个LCG的逻辑信道LCH的最高优先级作为所述每个LCG的优先级。
  41. 根据权利要求36至40中任一项所述的终端设备，其特征在于，所述发送模块还用于：
    向所述接入网设备发送第一指示信息，其中，所述第一指示信息用于指示所述截断BSR使用的BSR格式。
  42. 根据权利要求36至41中任一项所述的终端设备，其特征在于，所述发送模块还用于：
    向所述接入网设备发送第二指示信息，其中，所述第二指示信息用于指示所述截断BSR的长度。
  43. 一种接入网设备，其特征在于，包括：
    接收模块，用于接收终端设备通过第一目标BSR格式发送的目标BSR，所述目标BSR用于指示所述一个LCG的上行缓存数据量；
    其中，所述第一目标BSR格式是所述终端设备确定只有一个逻辑信道组LCG存在待 上报缓存数据时，从多种BSR格式中确定的一种BSR格式，所述多种BSR格式是所述终端设备根据上行缓存数据量范围的不同上报不同的BSR所使用的多种格式。
  44. 根据权利要求43所述的接入网设备，其特征在于，所述多种BSR格式包括第一BSR格式和第二BSR格式，所述第一BSR格式是所述终端设备根据第一数据量阈值内的缓存数据量上报BSR使用的格式，所述第二BSR格式是所述终端设备根据第二数据量阈值内的缓存数据量上报BSR使用的格式。
  45. 根据权利要求44所述的接入网设备，其特征在于，使用所述第一BSR格式发送的BSR占用一个字节，使用所述第二BSR格式发送的BSR占用两个或两个以上字节。
  46. 根据权利要求45所述的接入网设备，其特征在于，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段占用5个比特，使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段占用8个比特。
  47. 根据权利要求44所述的接入网设备，其特征在于，使用所述第一BSR格式发送的BSR和使用所述第二BSR格式发送的BSR均占用一个字节。
  48. 根据权利要求47所述的接入网设备，其特征在于，使用所述第一BSR格式发送的BSR中用于指示上报的上行缓存数据量的第一字段和使用所述第二BSR格式发送的BSR中用于指示上报的上行缓存数据量的第二字段均占用5个比特。
  49. 一种接入网设备，其特征在于，包括：
    接收模块，用于：
    接收所述终端设备使用第二目标BSR格式发送的BSR；
    其中，当前上行资源不够用于上报所述多个LCG的缓存数据量信息时，若所述当前上行资源量只能容纳一个字节时，所述第二目标BSR格式为所述第三BSR格式，否则所述第二目标BSR格式为所述第四BSR格式；
    其中，所述第三BSR格式和所述第四BSR格式均为截断BSR格式，所述截断BSR格式是所述终端设备发送截断BSR使用的格式，所述截断BSR用于上报所述多个LCG中的部分LCG的上行缓存数据量。
  50. 根据权利要求49所述的接入网设备，其特征在于，使用所述第三BSR格式发送的BSR占用一个字节，使用所述第四BSR格式发送的BSR占用两个或两个以上字节。
  51. 根据权利要求50所述的接入网设备，其特征在于，所述第三BSR格式包括第三字段，其中，所述第三字段占用5个比特，所述第三字段用于指示所述部分LCG中的一个LCG的上行缓存数据量。
  52. 根据权利要求50或51所述的接入网设备，其特征在于，所述第四BSR格式包括第四字段，其中，所述第四字段占用8比特，所述第四字段用于指示所述终端设备的8个LCG是否有上行缓存数据量上报。
  53. 根据权利要求49至52中任一项所述的通信方法，其特征在于，所述接收模块具体用于：
    按照所述多个LCG的优先级，接收所述终端设备使用所述第二目标BSR发送的BSR，其中，所述多个LCG中每个LCG的逻辑信道LCH的最高优先级作为所述每个LCG的优先级。
  54. 根据权利要求49至53中任一项所述的接入网设备，其特征在于，所述接收模块 还用于：
    从所述终端设备接收第一指示信息，其中，所述第一指示信息用于指示所述第二目标BSR格式。
  55. 根据权利要求49至54中任一项所述的接入网设备，其特征在于，所述接收模块还用于：
    从所述终端设备接收第二指示信息，其中，所述第二指示信息用于指示使用所述第二目标BSR发送的BSR的长度
  56. 一种终端设备，其特征在于，包括：
    处理模块，用于确定存在待上报缓存数据的逻辑信道组LCG满足以下至少一种条件：
    触发上报BSR的时刻到当前时刻之间未上报过所述LCG的上行缓存数据量；
    所述终端设备上一次上报所述LCG的上行缓存数据量的时刻与当前时刻之间的时间间隔大于或等于时间阈值；
    所述终端设备上一次上报的所述LCG的上行缓存数据量与所述LCG当前的上行缓存数据量之间的数据量差值大于或等于数据量阈值；
    所述LCG中的逻辑信道LC的最大优先级大于或等于优先级阈值；
    发送模块，用于向接入网设备发送所述BSR，所述BSR用于指示所述LCG当前的上行缓存数据量。
  57. 根据权利要求56所述的终端设备，其特征在于，所述处理模块具体用于：
    确定指示信息集合中不包含所述LCG的指示信息时，确定所述触发上报BSR的时刻到当前时刻之间未上报过所述LCG的上行缓存数据量，所述指示信息集合中的指示信息用于指示上报过上行缓存数据量的LCG。
  58. 根据权利要求57所述的终端设备，其特征在于，在所述发送模块向接入网设备发送BSR之后，所述处理模块还用于：
    在所述指示信息集合中添加上报过所述LCG的上行缓存数据量的指示信息。
  59. 一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行如权利要求1-29任意一项所述的方法。
  60. 一种芯片，其特征在于，所述芯片包括处理器与通信接口，所述通信接口用于与外部器件进行通信，所述处理器用于执行权利要求1至29中任一项所述的实现方式中的方法。
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