WO2019029686A1 - 数据传输方法、设备和通信系统 - Google Patents

数据传输方法、设备和通信系统 Download PDF

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Publication number
WO2019029686A1
WO2019029686A1 PCT/CN2018/099900 CN2018099900W WO2019029686A1 WO 2019029686 A1 WO2019029686 A1 WO 2019029686A1 CN 2018099900 W CN2018099900 W CN 2018099900W WO 2019029686 A1 WO2019029686 A1 WO 2019029686A1
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WIPO (PCT)
Prior art keywords
logical channel
channel group
data
sent
indication information
Prior art date
Application number
PCT/CN2018/099900
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English (en)
French (fr)
Inventor
刘星
黄曲芳
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华为技术有限公司
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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 BR112020002809-6A priority Critical patent/BR112020002809A2/pt
Priority to KR1020207007077A priority patent/KR102288180B1/ko
Priority to CN201880052195.0A priority patent/CN111034079A/zh
Priority to JP2020508018A priority patent/JP2020530719A/ja
Priority to RU2020110028A priority patent/RU2767505C2/ru
Priority to AU2018315298A priority patent/AU2018315298B2/en
Priority to EP18845226.2A priority patent/EP3633892B1/en
Publication of WO2019029686A1 publication Critical patent/WO2019029686A1/zh
Priority to US16/716,333 priority patent/US10911978B2/en
Priority to PH12020500306A priority patent/PH12020500306A1/en
Priority to US17/147,248 priority patent/US20210211922A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • 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
    • H04W28/0263—Traffic management, e.g. flow control or congestion control per individual bearer or channel involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
    • H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • 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
    • H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • 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
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1221—Wireless traffic scheduling based on age of data to be sent
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload

Definitions

  • the embodiments of the present application relate to communication technologies, and in particular, to a data transmission method, device, and communication system.
  • the terminal device can report the amount of data to be sent by the terminal device to the network device through a Buffer Status Report (BSR). Therefore, the network device can allocate an uplink transmission resource to the terminal device based on the BSR sent by the terminal device.
  • BSR Buffer Status Report
  • LCH logical channels
  • the future 5G communication system follows the concept of a logical channel group (LCG) in a Long Term Evolution (LTE) communication system. Therefore, the terminal device can report the BSR in units of LCG. In this way, the network device can obtain the amount of data to be sent of the LCGs of all the data to be sent on the terminal device through the BSR sent by the terminal device.
  • LCG logical channel group
  • LTE Long Term Evolution
  • the terminal device may fill the data to be sent on each LCH into a Media Access Control (MAC) Protocol Data Unit (PDU) and send the data to the network device.
  • MAC Media Access Control
  • PDU Protocol Data Unit
  • the terminal device may fill a BSR at the idle bit position of the MAC PDU.
  • the embodiment of the present invention provides a data transmission method, a device, and a communication system, which are used to solve the technical problem of how a terminal device sends a BSR to a network device at a free bit position of a MAC PDU in the prior art.
  • an embodiment of the present application provides a data transmission method, where the method includes:
  • the terminal device generates first indication information, where the first indication information is used to indicate a logical channel group of data to be sent, and a data volume to be sent of a part of the logical channel group of the logical channel group to which data is to be sent;
  • the terminal device sends the first indication information.
  • the terminal device may be insufficient in the number of idle bits of the MAC PDU to fill the BSR capable of indicating all the data to be transmitted, and the BSR of the to-be-sent data amount of the LCG to be transmitted. And generating a first indication information that is shorter than the length of the BSR, to indicate, by using the first indication information, an LCG of the to-be-transmitted data on the terminal device, and an amount of data to be sent of a part of the LCG of the LCG to which the data is to be sent.
  • the terminal device can also indicate to the network device, by using the first indication information, which LCGs of the data to be sent on the terminal device, so that the network device can be timely, And accurately knowing which LCGs on the terminal device are to be sent in addition to the LCG indicating the amount of data to be sent, so that the network device allocates uplink transmission resources to the terminal device more accurately and reasonably, and improves allocation of uplink transmission resources. effectiveness.
  • each logical channel group in the logical channel group to which data is to be sent corresponds to a priority.
  • the terminal device may select, according to the priority of each LCG, the first indication information indicating which LCGs of the LCG to be transmitted data are to be sent.
  • the amount of data is such that the network device can know which LCGs are to be sent according to the priority of each LCG, so that the network device allocates the priority for the terminal device more accurately and reasonably.
  • the uplink transmission resource of the higher-order LCG to be transmitted data improves the efficiency of allocating uplink transmission resources.
  • each of the logical channel groups has a higher priority than the logical channel group of the data to be sent except the part of the logical channel group.
  • the priority of the logical channel group is a higher priority than the logical channel group of the data to be sent except the part of the logical channel group.
  • the terminal device may select, according to the priority of each LCG, the first indication information indicating which LCGs of the LCG to be transmitted data are to be sent.
  • the amount of data is such that the network device can know which LCGs are to be sent according to the priority of each LCG, so that the network device allocates the priority for the terminal device more accurately and reasonably.
  • the uplink transmission resource of the higher-order LCG to be transmitted data improves the efficiency of allocating uplink transmission resources.
  • the at least one first logical channel group exists in the logical channel group that has data to be sent;
  • the part of the logical channel group includes the at least one first logical channel group, and the part of the logical channel group is divided
  • the priority of the other logical channel groups except the at least one first logical channel group is higher than the priority of the logical channel group except the part of the logical channel group in the logical channel group to which data is to be sent;
  • the at least one first logical channel group is used as the part of the logical channel group;
  • a part of the first logical channel group in the at least one first logical channel group is used as the part of the logical channel group,
  • the priority of each of the first logical channel groups in the partial logical channel group is higher than the first logical channel group in the at least one first logical channel group except the part of the first logical channel group priority.
  • the terminal device may preferentially indicate the first LCG by using the first indication information when there is at least one first LCG in the LCG to be sent data.
  • the amount of data to be sent so that the network device can preferentially know the amount of data to be sent of the first LCG based on the first indication information, so that the network device allocates the first LCG to be sent to the terminal device more accurately and reasonably.
  • the uplink transmission resource of the data improves the efficiency of allocating uplink transmission resources.
  • the air interface format corresponding to the first logical channel group is the same as the air interface format used when the first indication information is sent.
  • the terminal device may have at least one same format as the air interface used by the terminal device to send the first indication information in the LCG to be sent data.
  • the first indication information is used to preferentially indicate the amount of data to be sent of the first LCG, so that the network device can preferentially obtain the first LCG in the same format as the air interface used to send the first indication information based on the first indication information.
  • the amount of data to be sent is so that the network device allocates the uplink transmission resource corresponding to the air interface format to the terminal device more accurately and reasonably, thereby improving the efficiency of allocating the uplink transmission resource.
  • the first indication information is further used to indicate a length of the first indication information.
  • the data transmission method provided by the possible embodiment by indicating the length of the first indication information, enables the network device to complete decoding of the first indication information and the like based on the length of the first indication information, ensuring that the network device is first. Indicates the decoding efficiency of the information.
  • the method further includes:
  • the terminal device receives the second indication information, where the second indication information is used to indicate a priority corresponding to the at least one logical channel group of the terminal device.
  • the data transmission method provided by the possible implementation manner may dynamically indicate the priority of each LCG by using the second indication information, so that each LCG can be different for each LCG in different scenarios or situations.
  • the priority of the data transmission method can be flexibly changed, and the application scenario of the above data transmission method is expanded.
  • an embodiment of the present application provides a data transmission method, where the method includes:
  • the network device receives the first indication information
  • the network device determines, according to the first indication information, a logical channel group to which data is to be sent, and a data volume to be sent of a part of the logical channel group of the logical channel group to which data is to be sent.
  • each logical channel group in the logical channel group to which data is to be sent corresponds to a priority.
  • each of the logical channel groups has a higher priority than the logical channel group of the data to be sent except the part of the logical channel group.
  • the priority of the logical channel group is a higher priority than the logical channel group of the data to be sent except the part of the logical channel group.
  • the at least one first logical channel group exists in the logical channel group that has data to be sent;
  • the part of the logical channel group includes the at least one first logical channel group, and the part of the logical channel group is divided
  • the priority of the other logical channel groups except the at least one first logical channel group is higher than the priority of the logical channel group except the part of the logical channel group in the logical channel group to which data is to be sent;
  • the at least one first logical channel group is used as the part of the logical channel group;
  • a part of the first logical channel group in the at least one first logical channel group is used as the part of the logical channel group,
  • the priority of each of the first logical channel groups in the partial logical channel group is higher than the first logical channel group in the at least one first logical channel group except the part of the first logical channel group priority.
  • the air interface format corresponding to the first logical channel group is the same as the air interface format used when the first indication information is sent.
  • the first indication information is further used to indicate a length of the first indication information.
  • the method further includes:
  • the network device sends the second indication information, where the second indication information is used to indicate a priority corresponding to the at least one logical channel group of the terminal device.
  • the embodiment of the present application provides a terminal device, including:
  • a processor configured to generate first indication information, where the first indication information is used to indicate a logical channel group of data to be sent, and a quantity of data to be sent of a part of the logical channel group of the logical channel group to which data is to be sent;
  • transceiver configured to send the first indication information.
  • each logical channel group in the logical channel group to which data is to be sent corresponds to a priority.
  • each of the logical channel groups has a higher priority than the logical channel group of the data to be sent except the part of the logical channel group.
  • the priority of the logical channel group is a higher priority than the logical channel group of the data to be sent except the part of the logical channel group.
  • the at least one first logical channel group exists in the logical channel group that has data to be sent;
  • the part of the logical channel group includes the at least one first logical channel group, and the part of the logical channel group is divided
  • the priority of the other logical channel groups except the at least one first logical channel group is higher than the priority of the logical channel group except the part of the logical channel group in the logical channel group to which data is to be sent;
  • the at least one first logical channel group is used as the part of the logical channel group;
  • a part of the first logical channel group in the at least one first logical channel group is used as the part of the logical channel group,
  • the priority of each of the first logical channel groups in the partial logical channel group is higher than the first logical channel group in the at least one first logical channel group except the part of the first logical channel group priority.
  • the air interface format corresponding to the first logical channel group is the same as the air interface format used when the first indication information is sent.
  • the first indication information is further used to indicate a length of the first indication information.
  • the terminal device further includes:
  • the transceiver is configured to receive the second indication information, where the second indication information is used to indicate a priority corresponding to the at least one logical channel group of the terminal device.
  • the embodiment of the present application provides a network device, including:
  • a transceiver configured to receive first indication information
  • a processor configured to determine, according to the first indication information, a logical channel group of data to be sent, and a data volume to be sent of a part of the logical channel group of the logical channel group to which data is to be sent.
  • each logical channel group in the logical channel group to which data is to be sent corresponds to a priority.
  • each of the logical channel groups has a higher priority than the logical channel group of the data to be sent except the part of the logical channel group.
  • the priority of the logical channel group is a higher priority than the logical channel group of the data to be sent except the part of the logical channel group.
  • the at least one first logical channel group exists in the logical channel group that has data to be sent;
  • the part of the logical channel group includes the at least one first logical channel group, and the part of the logical channel group is divided
  • the priority of the other logical channel groups except the at least one first logical channel group is higher than the priority of the logical channel group except the part of the logical channel group in the logical channel group to which data is to be sent;
  • the at least one first logical channel group is used as the part of the logical channel group;
  • a part of the first logical channel group in the at least one first logical channel group is used as the part of the logical channel group,
  • the priority of each of the first logical channel groups in the partial logical channel group is higher than the first logical channel group in the at least one first logical channel group except the part of the first logical channel group priority.
  • the air interface format corresponding to the first logical channel group is the same as the air interface format used when the first indication information is sent.
  • the first indication information is further used to indicate a length of the first indication information.
  • the network device further includes:
  • the transceiver is configured to send the second indication information, where the second indication information is used to indicate a priority corresponding to the at least one logical channel group of the terminal device.
  • an embodiment of the present application provides a terminal device, where the terminal device includes: a processor and a memory, and a computer program stored on the memory for execution by the processor,
  • the processor executes the computer program to implement the data transmission method as provided by the first aspect and the possible embodiments of the first aspect.
  • an embodiment of the present application provides a network device, where the network device includes: a processor and a memory, and a computer program stored on the memory for execution by the processor;
  • the processor executes the computer program to implement the data transmission method provided by the second aspect and the possible embodiments of the second aspect.
  • an embodiment of the present application provides a terminal device, including at least one processing element (or chip) for performing the method of the above first aspect.
  • an embodiment of the present application provides a network device, including at least one processing element (or chip) for performing the method of the above second aspect.
  • the embodiment of the present application provides a data communication system, comprising: the terminal device according to any one of the preceding claims, and the network device according to any one of the preceding clauses.
  • the embodiment of the present application provides a program, when executed by a processor, for performing the method of the above first aspect.
  • an embodiment of the present application provides a program for executing the method of the above second aspect when executed by a processor.
  • the embodiment of the present application provides a program product, such as a computer readable storage medium, including the program of the tenth aspect.
  • the embodiment of the present application provides a program product, such as a computer readable storage medium, including the program of the eleventh aspect.
  • the embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores instructions that, when run on a computer, cause the computer to perform the method of the first aspect.
  • the embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores instructions, and when executed on a computer, causes the computer to execute the method of the second aspect.
  • the terminal device may have insufficient number of idle bits in the MAC PDU to fill the LCG capable of indicating all data to be sent, and the amount of data to be sent of all LCGs to be sent data.
  • the first indication information that is shorter than the length of the BSR may be used to indicate, by using the first indication information, the LCG of the data to be sent on the terminal device, and the to-be-sent data of the LCG of the LCG of the data to be transmitted. the amount.
  • the terminal device can also indicate to the network device, by using the first indication information, which LCGs of the data to be sent on the terminal device, so that the network device can be timely, And accurately knowing which LCGs on the terminal device are to be sent in addition to the LCG indicating the amount of data to be sent, so that the network device allocates uplink transmission resources to the terminal device more accurately and reasonably, and improves allocation of uplink transmission resources. effectiveness.
  • FIG. 1 is a frame diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a conventional BSR
  • FIG. 3 is a schematic diagram of another existing BSR
  • FIG. 4 is a schematic diagram of a BSR according to an embodiment of the present application.
  • FIG. 5 is a signaling flowchart of a data transmission method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another BSR according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of still another BSR according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another network device according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a data communication system according to an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • the communication system includes: a network device 01 and a terminal device 02.
  • Network device 01 and terminal device 02 can communicate using at least one air interface format. among them,
  • the network device may be the foregoing base station, or various wireless access points, or may refer to a device in the access network that communicates with the terminal device through one or more sectors on the air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a Global System of Mobile communication (GSM) or a Base Transceiver Station (BTS) in Code Division Multiple Access (CDMA), or may be a wideband code division multiple access (
  • the base station (NodeB, NB) in the Wideband Code Division Multiple Access (WCDMA) may also be an evolved base station (Evolutional Node B, eNB or eNodeB) in Long Term Evolution (LTE), or a relay station or an access point.
  • LTE Long Term Evolution
  • LTE Long Term Evolution
  • Terminal device may be a wireless terminal or a wired terminal, the wireless terminal may be a device that provides voice and/or other service data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem. .
  • the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • it may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network.
  • RAN Radio Access Network
  • the wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal.
  • the access terminal, the user terminal (User Terminal), the user agent (User Agent), and the user device (User Device or User Equipment), and the sensor having the network access function are not limited herein.
  • the above-mentioned air interface format may refer to an air interface having at least one of the following parameters or information (that is, an example of configuration information), specifically:
  • Waveform parameters are parameters that can indicate or determine a waveform.
  • the waveform parameter may include at least one of the following parameters: a waveform parameter used in an Orthogonal Frequency Division Multiplexing (OFDM) technology, and a single carrier frequency division.
  • OFDM Orthogonal Frequency Division Multiplexing
  • Waveform parameters used in Single-carrier Frequency-Division Multiple Access SC-OFDM
  • waveform parameters used in filter Orthogonal Frequency Division Multiplexing filter OFDM
  • general-purpose filters Waveform parameters used in the carrier (Universal Filtered Multi-Carrier, UFMC) technology, waveform parameters used in Filter Bank Multicarrier (FBMC) technology, and Generalized Frequency Division Multiplexing (GFDM) technology Waveform parameters used in etc.
  • UFMC Universal Filtered Multi-Carrier
  • FBMC Filter Bank Multicarrier
  • GFDM Generalized Frequency Division Multiplexing
  • Modulation method In the communication technology, in order to ensure the communication effect and overcome the problem in the long-distance signal transmission, the signal spectrum can be moved to the high-frequency channel for transmission by modulation.
  • the process of loading a signal to be transmitted to a high frequency signal is called modulation.
  • the modulation mode may include at least one of the following: Amplitude Shift Keying (ASK) modulation, Phase Shift Keying (PSK) modulation, and frequency.
  • ASK Amplitude Shift Keying
  • PSK Phase Shift Keying
  • Frequency Shift Keying (FSK) modulation, Quadrature Amplitude Modulation (QAM) modulation, Minimum Shift Keying (MSK) modulation, Gaussian Filtered Minimum Shift (Gaussian Filtered Minimum Shift) Keying, GMSK) modulation, OFDM modulation.
  • FSK Frequency Shift Keying
  • QAM Quadrature Amplitude Modulation
  • MSK Minimum Shift Keying
  • GMSK Gaussian Filtered Minimum Shift
  • OFDM modulation OFDM modulation.
  • the bandwidth configuration may refer to the usage width on the frequency domain resource required by the air interface.
  • the bandwidth configuration corresponding to the broadband transmission service may refer to the minimum frequency domain resource width required by the air interface, or the number of subcarriers.
  • the bandwidth configuration corresponding to the narrowband transmission service may refer to the maximum frequency domain resource width required by the air interface, or the number of subcarriers.
  • Radio frame configuration mode Subcarrier Spacing (SCS), symbol length, Cyclic Prefix (CP), Timing (such as the length of time between uplink grant and uplink data transmission), duplex mode, transmission Transmission Time Interval (TTI) length, length of radio frame and radio subframe.
  • SCS Subcarrier Spacing
  • CP Cyclic Prefix
  • Timing such as the length of time between uplink grant and uplink data transmission
  • duplex mode transmission Transmission Time Interval (TTI) length, length of radio frame and radio subframe.
  • TTI Transmission Time Interval
  • the duplex mode can be divided into full-duplex, half-duplex (including half-duplex up-down ratio), or flexible duplex. It should be noted that, in some air interfaces, the duplex mode may be fixed or flexible, and the transmission time interval may be a fixed value or a flexible change, which is not specifically limited in this embodiment of the present application.
  • the resource multiplexing mode may include at least one of the following methods:
  • Frequency Division Multiplexing That is, the total bandwidth for the transmission channel is divided into a number of sub-bands (or sub-channels), and each sub-channel transmits one signal. Frequency division multiplexing requires that the total frequency width is greater than the sum of the frequency of each subchannel, and in order to ensure that the signals transmitted in each subchannel do not interfere with each other, an isolation band should be established between each subchannel, thus ensuring mutual signal mutual Do not interfere (one of the conditions).
  • Time Division Multiplexing uses time as a parameter for signal division, so it is necessary to make the respective signals do not overlap each other on the time axis.
  • Time division multiplexing divides the time for transmitting information to the entire channel into a number of time slices (referred to as time slots), and allocates these time slots to each signal source for use.
  • SDM Space Division Multiplexing
  • the basic technique for realizing spatial segmentation is to use adaptive array antennas to form different beams in different user directions.
  • the space segmentation can be used to distinguish different users, or each beam can provide a unique channel without other user interference, or can divide the space to distinguish different data of the same user, and can also divide the space. To distinguish the same data of the same user for higher gain.
  • CDMA Code Division Multiplexing
  • FDMA Frequency Division Multiple Access
  • TDMA Time Division Multiple Access
  • SCDMA Synchronous Code Division Multiple Access
  • the channel configuration mode may refer to a time-frequency resource, a code domain resource, and an air domain resource (for example, a designated beam) corresponding to one channel.
  • the channel used by the wireless communication may include at least one channel or a combination of multiple channels: a control channel for transmitting control information (eg, may include an uplink control channel and a downlink) A control channel), a data channel for transmitting data (for example, may include an uplink data channel and a downlink data channel), a reference channel for transmitting a reference signal, and an access channel for transmitting access information.
  • Coding is a transformation of a source symbol for the purpose of improving the validity of communication, or a source symbol conversion for reducing or eliminating the source margin. For example, to find a method for the statistical characteristics of the source output symbol sequence, the source output symbol sequence is transformed into the shortest codeword sequence, so that the average information amount of each symbol of the latter is maximized, and at the same time, it can be guaranteed. Restore the original symbol sequence without distortion.
  • the coding mode may include at least one of the following: a Polar Code, a Turbo Code, and a Convolution Code.
  • Protocol stack refers to the sum of all layers of protocols in the network, and its image reflects the process of file transfer in a network. That is, from the upper layer protocol to the underlying protocol, and then from the underlying protocol to the upper layer protocol.
  • the protocol stack used by the wireless communication may include at least one protocol layer or a combination of multiple protocol layers: Packet Data Convergence Protocol (PDCP) layer, wireless A Link Control (RLC) layer, a Media Access Control (MAC) layer, a Physical layer, and a Radio Resource Control (RRC) layer.
  • PDCP Packet Data Convergence Protocol
  • RLC Link Control
  • MAC Media Access Control
  • RRC Radio Resource Control
  • each layer protocol can exist multiple protocol entities.
  • multiple access technology does not require that the various information be grouped together, but each is modulated and sent to the channel, and each is modulated from the channel.
  • the multiple access method used by the wireless communication may include at least one of the following: FDMA, TDMA, CDMA, SCMA, non-orthogonal multiple access (Non Orthogonal Multiple Access (NOMA), Multi-User Shared Access (MUSA).
  • the foregoing communication system may be an LTE communication system, or may be other communication systems in the future, such as a 5G communication system, and the like, which is not limited herein.
  • the LTE communication system introduces the concept of LCG, and one LCG can include at least one LCH.
  • the terminal device may send the BSR to the network device in units of LCG. In this way, the network device can know which LCG of the terminal device has data to be sent through the BSR sent by the terminal device, and the amount of data to be sent by the LCG, which is beneficial for the network device to allocate uplink transmission resources for the terminal device.
  • FIG. 2 is a schematic diagram of a conventional BSR.
  • the terminal device may send the short BSR as shown in FIG. 2 to the network device.
  • the short BSR is composed of one byte (Oct1), and includes an identifier (ID) of an LCG to which data is to be transmitted, and an amount of data to be transmitted of the LCG.
  • the amount of data to be sent of the LCG may be specifically indicated by the Buffer Size (BS) information shown in FIG. 2 .
  • the BS information is used to indicate the amount of data to be transmitted of one LCG.
  • FIG. 3 is a schematic diagram of another conventional BSR.
  • the terminal device may send the long BSR as shown in FIG. 3 to the network device.
  • the long BSR is composed of 3 bytes (ie, Oct1, Oct2, and Oct3).
  • the field for transmitting the amount of data to be transmitted for each LCG is fixed. Therefore, after receiving the long BSR, the network device can learn the amount of data to be sent of each LCG of the terminal device by using the value on the field corresponding to each LCG.
  • BS information #0 is the amount of data to be transmitted of LCG #0
  • BS information #1 is the amount of data to be transmitted of LCG #1
  • BS information #2 is the amount of data to be transmitted of LCG #2
  • BS information #3 is LCG. #3 The amount of data to be transmitted.
  • a terminal device can transmit data to a network device through a MAC PDU.
  • the MAC PDU includes a MAC Service Data Unit (SDU), a sub-head corresponding to the MAC SDU, a MAC Control Control Element (CE), and a sub-head corresponding to the MAC CE.
  • SDU MAC Service Data Unit
  • CE MAC Control Control Element
  • the MAC SDU is used to transmit data to be transmitted of different LCHs
  • the MAC CE is used to transmit some control information.
  • the terminal device may perform a logical channel priority on the to-be-sent data of the current LCH of the terminal device according to the uplink transmission resource used for sending the MAC PDU indicated by the uplink scheduling grant ( Logical Channel Prioritization (LCP) processes to generate MAC PDUs. Then, the terminal device may send the MAC PDU to the network device by using the uplink transmission resource indicated by the uplink scheduling authorization, and implement transmission of each service data.
  • LCP Logical Channel Prioritization
  • the terminal device When the data to be sent of the current LCH of the terminal device is insufficient to fill the MAC PDU, that is, when there is an idle bit position in the MAC PDU, if the number of free bits of the MAC PDU can fill a BSR, the terminal device may be in the The free bit position of the MAC PDU is filled with a Padding BSR.
  • the BSR can be regarded as a MAC CE. Therefore, in the embodiment of the present application, the BSR is also referred to as a BSR MAC CE.
  • the terminal device can fill a short BSR in the MAC PDU. If there are multiple LCGs on the terminal device to send data, the terminal device may fill a MAC PDU with a truncated BSR. Among them, the truncated BSR is the same as the short BSR format shown in FIG. 1.
  • the truncated BSR can only be used to indicate the identity of an LCG that has data to be transmitted, and the amount of data to be sent of the LCG.
  • the difference between a truncated BSR and a short BSR is that the subheader of the truncated BSR is different from the subhead of the short BSR. Therefore, the network device can know whether the terminal device has only one LCG to send data through the sub-header of the truncated BSR.
  • FIG. 4 is a schematic diagram of a BSR according to an embodiment of the present application.
  • the LCH may be divided into 8 LCGs.
  • the format of the BSR in the 5G communication system is still discussed, and one of the formats of the BSR that may be selected may be as shown in FIG.
  • the first byte (Oct1) of the BSR indicates the LCG of all the data to be transmitted on the terminal device through a bitmap.
  • one bit in the bitmap corresponds to one LCG.
  • each bit can be sequentially associated with one LCG in the order of the LCG number from small to large.
  • Shown in FIG. 4 is a schematic diagram of a BSR corresponding to each LCG in an order from small to large in accordance with the LCG number.
  • the bit is the first value
  • the LCG corresponding to the bit is the LCG of the data to be transmitted
  • the bit is the second value
  • the LCG corresponding to the bit is indicated as the LCG with no data to be transmitted.
  • the first value is 1
  • the second value may be 0, or when the first value is 0, the second value may be 1.
  • the subsequent byte after the first byte (Oct1) of the BSR is used to indicate the amount of data to be transmitted of the LCG of the data to be transmitted indicated by the first byte.
  • One byte is used to indicate the amount of data to be transmitted (ie, BS information) of the LCG to which data is to be transmitted.
  • the amount of data to be transmitted of each LCG to be transmitted may be sequentially arranged according to the order of the respective LCGs in the bitmap. Exemplarily, taking the first value and the second value as 0 as an example, if each of the eight LCGs shown in FIG. 4 has data to be transmitted, Oct1 may be 11111111.
  • Oct2 is the amount of data to be transmitted of LCG 0
  • Oct3 is the amount of data to be transmitted of LCG 1
  • Oct4 is the amount of data to be transmitted by LCG2, and so on.
  • the BSR has a total of 9 bytes. Assuming that two of the eight LCGs shown in FIG. 4 have data to be transmitted, which are LCG2 and LCG7, respectively, Oct1 can be 00100001.
  • Oct2 is the amount of data to be transmitted of LCG2
  • Oct3 is the amount of data to be transmitted of LCG7.
  • the BSR has a total of 3 bytes. That is to say, in the future 5G communication system, the length of the BSR can be changed according to the number of LCGs to which data is to be transmitted.
  • the terminal device may still send data to the network device through the MAC PDU. Therefore, there may be a case where the data to be transmitted of the current LCH of the terminal device is insufficient to fill the MAC PDU, and the number of idle bits of the MAC PDU is insufficient to fill the BSR shown in FIG. 4 above. That is, the number of idle bits of the MAC PDU is not enough to fill the BSR carrying the amount of data to be transmitted of the LCG with all data to be transmitted. In this case, if the terminal device uses the truncated BSR, the network device only knows that there is still an LCG to be sent on the terminal device after receiving the truncated BSR, but the network device cannot know the end. Which LCGs are not conducive to network devices to allocate uplink transmission resources for terminal devices.
  • the embodiment of the present application provides a data transmission method.
  • the technical solutions of the embodiments of the present application are described in detail by using some embodiments in the following, with reference to the future 5G communication system and the BSR shown in FIG.
  • the following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.
  • FIG. 5 is a signaling flowchart of a data transmission method according to an embodiment of the present application.
  • the terminal device when the number of idle bits of the MAC PDU is insufficient to fill the BSR shown in FIG. 4, the terminal device sends a logical channel group for indicating data to be sent and a logical channel to be sent data to the network device.
  • the method may include:
  • the terminal device generates first indication information.
  • the first indication information is used to indicate the LCG of the data to be sent, and the amount of data to be sent of a part of the LCG of the LCG to which the data is to be sent.
  • the terminal device sends the first indication information to the network device.
  • the network device receives the first indication information.
  • the network device determines, according to the first indication information, an LCG that has data to be sent, and an amount of data to be sent of a part of the LCG of the LCG to which the data is to be sent.
  • the terminal device may be insufficient to fill the LCG capable of indicating all the data to be sent by the terminal device and all the data to be sent when the number of idle bits of the MAC PDU is insufficient to fill the BSR shown in FIG. 4 .
  • the terminal device may generate a first indication information that is shorter than the length of the BSR, to indicate, by using the first indication information, the LCG of the data to be sent on the terminal device, and to be sent. The amount of data to be sent by the LCG of a portion of the LCG of the data.
  • the terminal device can indicate to the network device that the LCG of the data to be sent on the terminal device is still indicated by the first indication information when the number of idle bits of the MAC PDU is insufficient.
  • the network device can know, in addition to the LCG indicating the amount of data to be sent, which LCGs are to be sent on the terminal device, so that the network device is more accurate.
  • rational allocation of uplink transmission resources for terminal devices improves the efficiency of allocating uplink transmission resources.
  • the first indication information may follow the BSR format shown in FIG. 4 above. That is, the first byte of the first indication information is used to indicate the LCG of the data to be transmitted, and the subsequent byte is used to indicate the amount of data to be transmitted of a part of the LCG of the LCG to which the data is to be transmitted. One byte is used to indicate the amount of data to be sent by one LCG.
  • the first indication information is different from the BSR shown in FIG. 4 in that the first indication information indicates that the amount of data to be transmitted of the LCG of a part of the data to be transmitted is less than the BSR shown in FIG. 4 . Therefore, the above first indication information may also be referred to as a truncated BSR in a 5G communication system.
  • first indication information may still use the term of Truncated BSR or BSR in the 5G mobile communication system, and other terms may be used. Therefore, the naming of the first indication information in each communication system is not limited in the embodiment of the present application.
  • the following describes, for the first indication information, which LCGs of data to be transmitted, and which LCGs of the LCGs of the LCG to which data to be transmitted are introduced and illustrated.
  • the LCG of the data to be sent indicated by the foregoing first indication information may be an LCG of all the data to be sent on the terminal device, or may be an LCG of a part of the LCGs of the terminal device to be sent data.
  • each LCH can be mapped to at least one air interface format. That is, the data to be transmitted on the LCH can be mapped to the time-frequency resource corresponding to the LCH for transmission.
  • the network device is configured with two air interface formats, namely, an air interface format 1 and an air interface format 2.
  • the LCH1 of the terminal device can be mapped to the air interface format 1 and the LCH2 of the terminal device can be mapped to the air interface format 1 and the air interface format 2.
  • the data to be transmitted of the LCH1 can be transmitted by using the time-frequency resource corresponding to the air interface format 1, and the LCH2 can be transmitted by using the time-frequency resource corresponding to the air interface format 1 and the time-frequency resource corresponding to the air interface format 2.
  • the data to be transmitted of the LCH1 may be transmitted preferentially or only by using the time-frequency resource corresponding to the air interface format 1.
  • the LCH2 may transmit the time-frequency resource corresponding to the air interface format 1 and the time-frequency resource corresponding to the air interface format 2. Wait.
  • the LCG of the part of the LCG that has data to be transmitted on the terminal device has an LCG to be sent, and may be one of the corresponding air interface formats of the LCG to be sent on the terminal device, and is currently sent by the terminal device.
  • the LCG with the same air interface format used by the first indication information may also be an LCG in which all data to be sent in the LCG of the terminal device is larger than a preset threshold, and may also be all data to be sent on the terminal device.
  • the corresponding one of the air interface formats, the same as the air interface format used by the terminal device to send the first indication information, and the LCG to be sent is greater than the preset threshold, and may be determined according to the configuration of the communication system. .
  • the air interface format corresponding to the LCG may be preset, and may be an air interface format that is allowed to be mapped by all the LCHs in the LCG, and may also be an air interface format that is allowed to be mapped by any LCH in the LCG, and may also be used in the LCG.
  • An air interface format or the like in which the LCH currently having data to be transmitted is allowed to be mapped.
  • the LCGs of the above-mentioned terminal devices to which data is currently to be transmitted are LCG1, LCG2, LCG4, and LCG7.
  • the air interface format corresponding to the LCG1 and the air interface format of the LCG4 are the same as the air interface format used by the terminal device to send the first indication information, and the terminal device may generate the LCG1 and the LCG4.
  • the uplink resources can be used only when the LCHs of the air interface format mapping of the uplink resources are completely the same. Do joint processing. For example, when LCH0, LCH1, and LCH2 are mapped to the first air interface format, but only LCH0 and LCH1 are mapped to the second air interface format, the uplink resource in the first air interface format and the uplink resource in the second air interface format cannot be used. Joint processing.
  • the uplink resource in the first air interface format and the uplink resource in the second air interface format are used.
  • the joint processing of the foregoing multiple uplink resources refers to that the terminal device can add these uplink resources together and perform LCP on the total number. For example, when the first uplink resource has 100 bits and the second uplink resource has 300 bits, and the first uplink resource and the second uplink resource can be jointly processed, the terminal device adds up two uplink resources, and has a total of 400 bits. The resources then do LCP on this 400 bit.
  • the foregoing first indication information is used to indicate the amount of data to be sent of a part of the LCG of the LCG to which the data is to be sent.
  • the number of the part of the LCG may be determined according to the system configuration, and may also be sent according to the terminal device.
  • the length of the first indication information is determined and the like. For example, assuming that the length of the first indication information is 3 bytes, since the first byte (Oct1) of the first indication information is used to indicate the LCG of the data to be transmitted, each byte in the subsequent byte may be The amount of data to be sent used to indicate the LCG of a data to be transmitted.
  • the first indication information can indicate the amount of data to be transmitted of the two LCGs in the LCG of the data to be transmitted.
  • the length of the first indication information may be determined by the base station by using the indication information to the terminal device, or may be determined by the terminal device according to the number of bits used by the MAC PDU to send the first indication information. For example, when the foregoing terminal device sends the first indication information by using the idle bit position of the MAC PDU, the terminal device may determine the size of the first indication information according to the number of idle bits of the MAC PDU.
  • the foregoing first indication information is used to indicate the amount of data to be sent of a part of the LCGs of the LCG to which data to be transmitted, where a part of the LCGs may be specifically from the LCG of the data to be transmitted according to the number of the part of the LCGs. Determined, the specific can be divided into the following situations:
  • the first case when each LCG on the terminal device corresponds to a priority, the priority of each LCG in a part of the LCGs here is higher than the LCG of the data to be transmitted except the part of the LCG.
  • the priority of the LCG is higher than the LCG of the data to be transmitted except the part of the LCG.
  • the network device can learn, according to the LCG of the data to be sent indicated by the first indication information, and the priorities of the LCGs, which LCGs are to be sent in the first indication information. The amount of data.
  • the priority of the foregoing LCG may be preset, and may also be dynamically indicated by the network device. Therefore, in some embodiments, the network device may further send the second indication information to the terminal device to indicate, by using the second indication information, a priority corresponding to the at least one LCG on the terminal device. For example, the priority of the LCG whose priority has changed is indicated by the second indication information, or the priority of all the LCGs and the like are indicated by the second indication information. In this way, after receiving the second indication information, the terminal device can learn the priority of each LCG according to the second indication information.
  • the foregoing second indication information may be carried in physical layer signaling, system information block (SIB) signaling, resource control (Radio Resource Control, RRC) signaling, downlink control signaling, and the like. To the terminal device.
  • SIB system information block
  • RRC Radio Resource Control
  • the network device may further determine a priority corresponding to each LCG on the terminal device.
  • the foregoing network device may determine a priority of each LCG according to a priority of an LCH included in each LCG. For example, the network device may use the priority of the LCH with the lowest priority in the LCG as the priority of the LCG, or the priority of the LCH with the highest priority among the LCGs as the priority of the LCG.
  • the network device may determine the currently used priority table. Then, the priority corresponding to the LCG restricted in the priority table is indicated by the second indication information.
  • the priority of the above LCG may correspond to the priority of the LCH included in the LCG.
  • the priority of each LCH included in the high priority LCG is higher than the priority of each LCH included in the lower priority LCG. That is, the LCH with a higher priority is assigned to one LCG. In this way, when the number of idle bits of the MAC PDU is insufficient to fill the BSR shown in FIG.
  • the priority of each LCG can be obtained according to the priority of the LCH of each LCG on the terminal device, so that the terminal device can A part of the LCG is determined from the LCG of the data to be transmitted according to the priority of each LCG, the LCG to be transmitted data, and the number of LCGs, and the amount of data to be sent of the part of the LCG is indicated by the first indication information.
  • the network device may determine, in the same manner as the terminal device side, whether the first indication information indicates which LCGs in the LCG to be sent data are to be sent. The amount of data will not be described in detail.
  • the LCH with the highest priority among the LCHs included in the high-priority LCG has a higher priority than the LCH with the highest priority among the LCHs included in the LCG with a lower priority, or the LCG with the higher priority is included.
  • the LCH with the lowest priority among the LCHs has a higher priority than the LCH with the lowest priority among the LCHs included in the LCG with a lower priority. That is to say, the priority of the LCG is determined by the LCH with the highest priority or the LCH with the lowest priority among the LCGs.
  • the terminal device can learn the priority of each LCG according to the priority of the LCH with the highest priority among the LCGs or the priority of the LCH with the lowest priority. It can be understood that the manner of determining the priority of the foregoing LCG is only an example of the embodiment of the present application, and the manner for determining the priority of the LCG is not limited in the embodiment of the present application.
  • the network device may further send third indication information to the terminal device to instruct the terminal device to send the first indication information.
  • the terminal device may send the first indication information to the network device when the number of idle bits of the MAC PDU is insufficient to fill the BSR shown in FIG. 4 .
  • the foregoing third indication information may be carried in physical layer signaling, system information block (SIB) signaling, resource control (Radio Resource Control, RRC) signaling, downlink control signaling, and the like.
  • SIB system information block
  • RRC Radio Resource Control
  • FIG. 6 is a schematic diagram of another BSR according to an embodiment of the present application.
  • the LCG of the data to be transmitted is LCG0, LCG1, and LCG2, wherein the priority of LCG2 is higher than that of LCG0, and the priority of LCG0 is higher than that of LCG1.
  • the first indication information can be used to indicate the amount of data to be transmitted of the two LCGs.
  • the foregoing terminal device may generate first indication information for indicating the amount of data to be transmitted of the LCG0, the LCG1, the LCG2, and the LCG0, and the amount of data to be transmitted of the LCG2. As shown in FIG.
  • the first byte Oct1 of the first indication information may be 11100000
  • the second byte Oct2 is used to indicate the amount of data to be sent of the LCG0
  • the third byte Oct3 is used to indicate the amount of data to be sent of the LCG2.
  • the amount of data to be sent of a part of the LCG selected from the LCG of the data to be transmitted is still in the first indication information according to the bit position corresponding to each LCG on the first byte. Arrange.
  • each LCG on the terminal device corresponds to one priority, and at least one first LCG exists in the LCG with the data to be sent.
  • the priority of the LCG includes at least one first LCG, and the priorities of the LCGs other than the at least one first LCG in the part of the LCG are high.
  • the priority of other LCGs except a part of the LCG in the LCG to which data is to be transmitted is to say, among the LCGs other than the first LCG, the other LCGs are LCGs with higher priority among the LCGs to which data is to be transmitted.
  • At least one LCG may be directly used as the above-mentioned part of the LCG. That is to say, only a first LCG is included in a part of the LCG.
  • a part of the first LCG of the at least one first LCG is taken as the part of the LCG.
  • the priority of each first LCG in the foregoing part of the LCG is higher than the priority of the first LCG in the first LCG except the first LCG in the foregoing part of the LCG. That is to say, only a part of the LCG includes the first LCG with higher priority.
  • the foregoing first LCG may be: an LCG in the same format as the air interface used in sending the first indication information in the LCG to be sent data.
  • the terminal device may determine whether the first LCG exists in the LCG of the data to be sent according to the air interface format corresponding to the LCG of the data to be sent and the air interface format used when the first indication information is sent. If the first LCG in the LCG of the data to be transmitted is smaller than the number of LCGs to be sent by the first indication information, the terminal device may further follow the LCG according to the manner shown in the first case. Priority, and then selecting some LCGs from the remaining LCGs to be sent data, so that the first LCG and the total number of LCGs from the remaining LCGs to be sent data are the amount of data to be sent that the first indication information can indicate. The number of LCGs.
  • the terminal device can indicate that the first LCGs are to be sent by using the first indication information.
  • the amount of data for the LCG If the number of the first LCGs of the LCGs to be transmitted is greater than the number of LCGs of the to-be-sent data amount that can be indicated by the first indication information, the terminal device may select the multiple first LCGs according to the priorities of the first LCGs. The first LCG that can indicate the amount of data to be transmitted can be selected using the first indication information.
  • the network device may determine, in the same manner as the terminal device side, whether the first indication information indicates which LCGs in the LCG to be sent data are to be sent. The amount of data will not be described in detail.
  • the first LCG may be an LCG that is selected from the LCG to be sent according to other preset conditions, for example, the first LCG is an LCG whose delay is less than or equal to a preset delay threshold.
  • the delay may be, for example, the delay of the LCH in which the delay of the transmitted service is the highest in the LCG, etc., and will not be further described herein.
  • the third case the above part of the LCG may also be in the order of the LCG number from small to large, and the determined number of the part of the LCG is selected from the LCG to be transmitted data.
  • the LCGs of the data to be transmitted are LCG0, LCG1, LCG4, and LCG5, wherein the number of LCGs of the LCGs of the data to be transmitted is 3.
  • a part of the LCGs may be selected from the LCGs to be transmitted in the order that the LCG numbers are small to large, and the partial LCGs may be, for example, LCG0, LCG1, and LCG4. That is, the first indication information is used to indicate LCG0, LCG1, LCG4, and LCG5, and the amount of data to be transmitted of LCG0, the amount of data to be transmitted of LCG1, and the amount of data to be transmitted of LCG4.
  • the network device may determine, in the same manner as the terminal device side, whether the first indication information indicates which LCGs in the LCG to be sent data are to be sent. The amount of data will not be described in detail.
  • the first indication information is that the terminal device sends the MAC PDU to the network device when the number of idle bits of the MAC PDU is insufficient to fill the BSR shown in FIG. 4 . Therefore, the above first indication information is usually located at the end of the MAC PDU. In this scenario, after receiving the MAC PDU, the network device can automatically determine the number of bits remaining in the MAC PDU after completing the decoding of the MAC CE or the MAC SDU in the MAC PDU before the first indication information. An indication of the length of the message. In this way, the network device can complete decoding of the first indication information based on the length of the first indication information.
  • the first indication information is not located at the end of the MAC PDU. That is, in the MAC PDU, there is also a MAC SDU or MAC CE after the bit position where the first indication information is located.
  • the first indication information may be used to indicate the length of the first indication information. Therefore, the network device can complete decoding of the first indication information and the like based on the length of the first indication information, and ensure the decoding efficiency of the first indication information by the network device.
  • the first indication information is described and introduced in the scenario that the number of idle bits of the MAC PDU is insufficient for the terminal device to fill the BSR shown in FIG. 4 .
  • the foregoing first indication information includes, but is not limited to, the foregoing application scenario.
  • the data transmission method provided by the embodiment of the present application may be used in any scenario in which the terminal device needs to send the indication information indicating the amount of data to be sent on the LCG to the network device, and details are not described herein.
  • the embodiment of the present application uses the BCH format in which the LCH is divided into eight LCGs, the first indication information is described and illustrated.
  • the format of the foregoing first indication information is not limited thereto, and the number of bits used to indicate the amount of data to be sent changes when the LCH is divided into other numbers of LCGs.
  • the format of the first indication information may also be adaptively adjusted or deformed (for example, 5 bits), and details are not described herein again.
  • the foregoing first indication information may also be used only for indicating the LCG of the data to be sent, without indicating The amount of data to be sent of the LCG of any data to be transmitted is similar to the above, and will not be described again.
  • the terminal device may be configured to: when the number of idle bits of the MAC PDU is insufficient to fill the BSR capable of indicating all the data to be transmitted, and the BSR of the to-be-sent data amount of the LCG to be transmitted.
  • the first indication information that is shorter than the length of the BSR may be generated to indicate, by using the first indication information, an LCG of the data to be sent on the terminal device, and an amount of data to be sent of a part of the LCG of the LCG to which the data is to be sent.
  • the terminal device can also indicate to the network device, by using the first indication information, which LCGs of the data to be sent on the terminal device, so that the network device can be timely, And accurately knowing which LCGs on the terminal device are to be sent in addition to the LCG indicating the amount of data to be sent, so that the network device allocates uplink transmission resources to the terminal device more accurately and reasonably, and improves allocation of uplink transmission resources. effectiveness.
  • the terminal device may generate a first indication information that is shorter than the length of the BSR.
  • the data transmission methods provided are described and described.
  • the future 5G communication system may allow the terminal device to fill a MAC PDU with a truncated BSR, and the truncated BSR may be used to indicate that part of the BSR is to be used.
  • the terminal device may fill the MAC PDU.
  • the truncated BSR may use the BSR format shown in FIG. 2 or FIG. 4 above.
  • the first byte of the truncated BSR is used to indicate the LCG indicating the amount of data to be transmitted, and the subsequent bytes are used to indicate the amount of data to be transmitted of these LCGs.
  • One byte is used to indicate the amount of data to be sent by one LCG.
  • the above-described truncated BSR differs from the BSR shown in FIG. 4 in that the truncated BSR indicates a small number of LCGs to be transmitted data, and the amount of data to be transmitted of these LCGs. It should be noted that the BSR shown in FIG. 2 or FIG.
  • the truncated BSR may adopt a BSR structure as shown in FIG. 2 or FIG. 4, but is used to indicate the amount of data to be sent.
  • the number can be adaptively deformed, for example, it can be 5 bits, 9 bits, and the like.
  • FIG. 7 is a schematic diagram of still another BSR according to an embodiment of the present application. As shown in FIG. 7, it is assumed that each of the eight LCGs shown in FIG. 7 has data to be transmitted, but the number of free bits of the current MAC PDU can only be filled with a truncated BSR having 3 bytes.
  • the amount of data to be transmitted in LCG2 and LCG4 can be indicated by the truncated BSR, and the Oct1 of the truncated BSR can be 00101000.
  • Oct2 is the amount of data to be transmitted of LCG 2
  • Oct3 is the amount of data to be transmitted of LCG 4.
  • the network device can learn, by using the first byte of the truncated BSR, which LCGs are indicated by the truncated BSR, and the subsequent bytes can be used to know the amount of data to be sent of the indicated LCGs.
  • the sub-header of the truncated BSR knows that there is still an LCG on the terminal device to which data is to be transmitted.
  • the above-described truncated BSR may still use the term of Truncated BSR or BSR in the 5G mobile communication system, and other terms may be used. Therefore, the naming of the truncated BSR in each communication system is not limited in the embodiment of the present application.
  • the truncated BSR follows the BSR format shown in FIG. 2 or FIG. 4 above, the truncated BSR can use a different subheader than the BSR shown in FIG. 2 or FIG. 4. Therefore, the network device can know whether the terminal device has other LCGs to send data through the sub-header of the truncated BSR.
  • the truncated BSR is used to indicate a part of the LCG of the LCG on the terminal device that has data to be sent, and the amount of data to be sent of the part of the LCG.
  • the number of the LCGs may be determined according to the system configuration, and may also be determined according to the system configuration.
  • the length of the truncated BSR that the terminal device can transmit is determined, and the like. For example, assuming that the length of the truncated BSR is 3 bytes, since the first byte (Oct1) of the truncated BSR is used to indicate the LCG of the data to be transmitted, each byte in the subsequent byte can be used.
  • the above-described truncated BSR can indicate the amount of data to be transmitted of two LCGs in the LCG to which data is to be transmitted.
  • the length of the truncated BSR may be determined by the base station by using the indication information to the terminal device, or may be determined by the terminal device according to the number of bits of the BSR for transmitting the truncated BSR on the MAC PDU. For example, when the terminal device sends the truncated BSR through the idle bit position of the MAC PDU, the terminal device may determine the size of the truncated BSR according to the number of idle bits of the MAC PDU.
  • the truncated BSR is used to indicate a part of the LCGs of the LCGs on the terminal device that have data to be sent, and the amount of data to be sent of the LCGs, where a part of the LCGs may be specifically based on the part of the LCGs.
  • the number is determined from the LCG to be sent data, and can be divided into the following cases:
  • the first case when each LCG on the terminal device corresponds to a priority, the priority of each LCG in a part of the LCGs here is higher than the LCG of the data to be transmitted except the part of the LCG.
  • the priority of the LCG is higher than the LCG of the data to be transmitted except the part of the LCG.
  • the priority of the LCG when the priority of the LCG may correspond to the priority of the LCH included in the LCG, the priority of the LCG may be determined according to the priority of the LCH on which the data to be transmitted exists on the LCG. For example, the priority of the LCH with the highest priority among the LCHs with the highest priority is included in the LCH with the higher priority, and is higher than the priority of the LCH with the highest priority among the LCHs with the data to be transmitted included in the LCG with the lower priority. . Or, the priority of the LCH having the lowest priority among the LCHs of the LCHs to be transmitted, and the priority of the LCHs having the lowest priority among the LCHs of the to-be-sent data included in the LCG having the lower priority .
  • the priority of the LCG is determined by the LCH in the LCG that has data to be transmitted and has the highest or lowest priority.
  • the terminal device can learn the priority of each LCG according to the priority of the LCH with the highest priority among the LCGs or the priority of the LCH with the lowest priority. It can be understood that the manner of determining the priority of the foregoing LCG is only an example of the embodiment of the present application, and the manner for determining the priority of the LCG is not limited in the embodiment of the present application.
  • each LCG on the terminal device corresponds to one priority, and at least one first LCG exists in the LCGs of all the above-mentioned data to be transmitted.
  • the part of the LCG includes at least one first LCG, and the priorities of the LCGs other than the at least one first LCG in the part of the LCG are high.
  • the priority of other LCGs except a part of the LCG in all LCGs that have data to be transmitted is to say, in addition to the first LCG, some LCGs in some LCGs are LCGs with high priority among all LCGs that have data to be transmitted.
  • At least one LCG may be directly used as the above-mentioned part of the LCG. That is to say, only a first LCG is included in a part of the LCG.
  • a part of the first LCG of the at least one first LCG is taken as the part of the LCG.
  • the priority of each first LCG in the foregoing part of the LCG is higher than the priority of the first LCG in the first LCG except the first LCG in the foregoing part of the LCG. That is to say, only a part of the LCG includes the first LCG with higher priority.
  • the foregoing first LCG may be: an LCG in the same format as the air interface used in sending the truncated BSR in the LCG to be sent data.
  • the foregoing first LCG may be: an LCG in the same format as the air interface used in sending the truncated BSR in the LCG to be sent data.
  • the first LCG may be: an LCG in which the amount of data to be sent is greater than or equal to a first preset threshold in all LCGs that have data to be sent.
  • the first preset threshold may be specifically determined according to a system configuration.
  • the terminal device may compare the amount of data to be sent of each LCG of the LCG to be sent with the first preset threshold, and determine whether the amount of data to be sent in the LCG of all data to be sent is greater than or equal to The first LCG of the first predetermined threshold. If the first LCG in the LCG that has data to be transmitted is smaller than the number of LCGs that can be indicated by the truncated BSR, the terminal device may further follow the LCG according to the manner shown in the first case.
  • the terminal device can use the first LCGs as the BSRs that can use the truncation to indicate the data to be sent.
  • the amount of LCG is the number of LCGs.
  • the terminal device may select the first LCGs according to the priorities of the first LCGs.
  • the first LCG that can use the truncated BSR to indicate the amount of data to be transmitted is selected.
  • the first LCG may be: an LCG in which the amount of data to be sent on the LCH is greater than or equal to a second preset threshold in all LCGs that have data to be sent.
  • the second preset threshold may be specifically determined according to a system configuration.
  • the terminal device may compare the amount of the to-be-sent data of the LCH with the data to be sent on the LCG of the LCG to which the data to be transmitted is compared with the second preset threshold, and determine whether the LCG of all the data to be sent exists. Sending a first LCG whose data amount is greater than or equal to a first preset threshold. If the first LCG in the LCG that has data to be transmitted is smaller than the number of LCGs that can be indicated by the truncated BSR, the terminal device may further follow the LCG according to the manner shown in the first case.
  • the terminal device can use the first LCGs as the BSRs that can use the truncation to indicate the data to be sent.
  • the amount of LCG is the number of LCGs.
  • the terminal device may select the first LCGs according to the priorities of the first LCGs.
  • the first LCG that can use the truncated BSR to indicate the amount of data to be transmitted is selected.
  • the first LCG may be: an LCG whose delay time of the data to be sent is less than or equal to a third preset threshold.
  • the time delay remaining time mentioned herein may be the time delay remaining time of the service to which the data to be transmitted belongs. It should be noted that the foregoing third preset threshold may be specifically determined according to a system configuration.
  • the terminal device may set a discard timer for each data of each LCH of each LCG, where a maximum value of the discard timer is a delay corresponding to the LCH.
  • the discard timer may be started for each data to determine whether to discard the to-be-sent data. Therefore, when the delay remaining time of the data to be transmitted of the LCG is the delay remaining time of the data with the least delay time remaining in the LCH of the LCG, the terminal device may be based on all the LCGs of the data to be transmitted. Timeout remaining time (delay remaining time) of the discard timer of each data in each LCH on each LCG, determining the remaining time of delay of the data to be transmitted of each LCG in the LCGs of all data to be transmitted .
  • the terminal device may set a discard timer for each LCH of each LCG, where the maximum value of the discard timer is the delay corresponding to the LCH.
  • the drop timer may be started to determine whether to discard the to-be-sent data. Therefore, when the delay remaining time of the to-be-transmitted data of the LCG is the minimum value of the delay remaining time of all the LCHs of the LCG to be transmitted, the terminal device may be configured according to each of the LCGs of all the data to be transmitted.
  • the timeout remaining time (delay remaining time) of the drop timer of each LCH on the upper one determines the delay remaining time of the data to be transmitted of each of the LCGs of the LCGs to be transmitted.
  • the terminal device may set a discard timer for each LCG, where The maximum value of the drop timer is the delay corresponding to the LCH with the highest latency requirement of the LCG.
  • the drop timer can be started when any LCH in the LCG receives the data to be transmitted. Therefore, in this implementation manner, the foregoing terminal device may determine, according to the timeout remaining time (time delay remaining time) of the drop timer of each LCG in the LCG of all data to be transmitted, each of the LCGs to which data to be transmitted is determined. The remaining time of the delay of the data to be transmitted of the LCG.
  • the terminal device may compare the remaining time of the delay of the data to be sent of each LCG with the third preset threshold to determine whether there is data to be sent.
  • the first LCG whose delay remaining time is less than or equal to the third preset threshold. If the first LCG in the LCG that has data to be transmitted is smaller than the number of LCGs that can be indicated by the truncated BSR, the terminal device may further follow the LCG according to the manner shown in the first case.
  • the terminal device can use the first LCGs as the BSRs that can use the truncation to indicate the data to be sent.
  • the amount of LCG is the number of LCGs.
  • the terminal device may select the first LCGs according to the priorities of the first LCGs.
  • the first LCG that can use the truncated BSR to indicate the amount of data to be transmitted is selected.
  • the foregoing first LCG may be: the LCG of all the data to be sent, including the new LCG of the data to be sent.
  • the new data to be sent here is the last BSR sent by the terminal device.
  • the BSR may be the BSR shown in FIG. 4, and may also be the above-mentioned truncated BSR, or may be any other BSR, for example, triggered by new data. After the BSR), the LCH on it is newly buffered for data to be sent.
  • the terminal device may determine, according to the to-be-sent data of the LCH that has data to be sent on each LCG of the LCG that is to be sent data, whether there is a new LCG of the new to-be-sent data in the LCG of the data to be sent. . If the first LCG in the LCG that has data to be transmitted is smaller than the number of LCGs that can be indicated by the truncated BSR, the terminal device may further follow the LCG according to the manner shown in the first case.
  • the terminal device can use the first LCGs as the BSRs that can use the truncation to indicate the data to be sent.
  • the amount of LCG is the number of LCGs.
  • the terminal device may select the first LCGs according to the priorities of the first LCGs.
  • the first LCG that can use the truncated BSR to indicate the amount of data to be transmitted is selected.
  • the foregoing first LCG may be: an LCG that includes all data to be sent, and a new amount of data to be sent that is greater than or equal to a fourth preset threshold.
  • the foregoing first LCG may be: an LCG in which all the data to be sent includes the new to-be-sent data, and the new to-be-sent data ratio is greater than or equal to a fifth preset threshold.
  • the ratio of the new data to be sent is the ratio of the amount of data to be sent to the amount of data to be sent of the first LCG, or the amount of data to be sent and the amount of data to be sent of the first LCG.
  • the ratio of the amount of data other than the amount of transmitted data, etc., the implementation principle and technical effect are similar to the above, and will not be described again.
  • the fourth preset threshold and the fifth preset threshold may be specifically determined according to a system configuration.
  • the remaining time of the delay of the data to be transmitted of each LCG in the foregoing part of the LCG is smaller than the remaining time of the delay of the data to be transmitted of the other LCGs except the part of the LCG.
  • the terminal device may sort all the LCGs to be sent according to the timeout remaining time (time delay remaining time) of the drop timer of each LCG of the LCG to be sent data, in order from small to large.
  • a part of the LCG is selected from all LCGs to which data is to be transmitted, and the amount of data to be transmitted of the part of the LCG is indicated by the truncated BSR.
  • the fourth case the above part of the LCG may also be in the order of the LCG number from small to large, and the determined number of the part of the LCG is selected from all LCGs to be transmitted data.
  • the fourth case refer to the description of the foregoing embodiment, and details are not described herein again.
  • the truncated BSR is sent by the terminal device to the network device through the MAC PDU when the number of idle bits of the MAC PDU is insufficient to fill the BSR shown in FIG. 4 . Therefore, the above truncated BSR is usually located at the end of the MAC PDU.
  • the network device can automatically determine the truncated according to the remaining number of bits in the MAC PDU after decoding the MAC CE or MAC SDU in the MAC PDU before the truncated BSR. The length of the BSR. In this way, the network device can complete decoding of the truncated BSR based on the length of the truncated BSR.
  • the truncated BSR is not located at the end of the MAC PDU. That is, in the MAC PDU, there is also a MAC SDU or MAC CE after the bit position where the truncated BSR is located.
  • the truncated BSR may also be used to indicate the length of the truncated BSR, so that the network device can complete the decoding of the truncated BSR based on the length of the truncated BSR, and ensure that the network device intercepts the BSR. Decoding efficiency.
  • the truncated BSR is described and described in the scenario that the number of idle bits of the MAC PDU is insufficient for the terminal device to fill the BSR shown in FIG. 4 .
  • the above-mentioned truncated BSR includes but is not limited to the above application scenarios.
  • the data transmission method provided by the embodiment of the present application may be used in any scenario in which the terminal device needs to send the indication information indicating the amount of data to be sent on the LCG to the network device, and details are not described herein.
  • the terminal device may be configured to: when the number of idle bits of the MAC PDU is insufficient to fill the BSR capable of indicating all the data to be transmitted, and the BSR of the to-be-sent data amount of the LCG to be transmitted.
  • a truncated BSR may be generated to indicate, by the truncated BSR, a portion of the LCGs on the terminal device that have data to be transmitted, and the amount of data to be transmitted of the LCGs.
  • the terminal device can also indicate to the network device, by using the truncated BSR, a part of the LCG of the data to be sent on the terminal device, and the amount of data to be sent of the LCG.
  • the network device can obtain the amount of data to be sent of the LCG of the part of the terminal device that needs to be sent in a timely and accurate manner, so that the network device allocates the uplink transmission resource to the terminal device more accurately and reasonably, and improves the allocation of the uplink transmission resource. effectiveness.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure. As shown in FIG. 8, the foregoing terminal device may include: a processing module 11 and a sending module 12. among them,
  • the processing module 11 is configured to generate first indication information, where the first indication information is used to indicate a logical channel group of data to be sent, and a data volume to be sent of a part of the logical channel group of the logical channel group to which data is to be sent. ;
  • the sending module 12 is configured to send the first indication information.
  • each logical channel group in the logical channel group with the data to be sent corresponds to a priority
  • the priority of each logical channel group in the foregoing logical channel group may be higher than the to-be-sent
  • the priority of other logical channel groups except the part of the logical channel group in the logical channel group of data may be higher than the to-be-sent.
  • At least one first logical channel group exists in each logical channel group of the logical channel group to which data is to be sent, and at least one first logical channel group exists in the logical channel group to which data is to be sent, at least one first logic The number of channel groups is smaller than the number of the logical channel groups, and the part of the logical channel group includes the at least one first logical channel group, and the at least one first logical channel group of the part of the logical channel group
  • the priority of the other logical channel groups except the priority of the logical channel group other than the part of the logical channel group in the logical channel group to which data is to be transmitted is higher.
  • the at least one first logical channel group is used as the part of the logical channel group. If the number of the at least one first logical channel group is greater than the number of the logical channel groups, a part of the first logical channel group in the at least one first logical channel group is used as the part of the logical channel group.
  • the priority of each of the first logical channel groups in the part of the logical channel group is higher than the first logic in the at least one first logical channel group except the part of the first logical channel group.
  • the priority of the channel group For example, the air interface format corresponding to the first logical channel group may be the same as the air interface format used when the first indication information is sent.
  • the foregoing first indication information is further used to indicate a length of the first indication information.
  • the terminal device described above may further include a receiving module 13.
  • the receiving module 13 is configured to receive the second indication information, where the second indication information is used to indicate a priority corresponding to the at least one logical channel group of the terminal device.
  • the terminal device provided by the embodiment of the present invention can perform the action of the terminal device in the method embodiment shown in FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the foregoing network device may include: a receiving module 21 and a processing module 22. among them,
  • the receiving module 21 is configured to receive first indication information
  • the processing module 22 is configured to determine, according to the first indication information, a logical channel group of data to be sent, and a data volume to be sent of a part of the logical channel group of the logical channel group to which data is to be sent.
  • each logical channel group in the logical channel group with the data to be sent corresponds to a priority
  • the priority of each logical channel group in the foregoing logical channel group may be higher than the to-be-sent
  • the priority of other logical channel groups except the part of the logical channel group in the logical channel group of data may be higher than the to-be-sent.
  • At least one first logical channel group exists in each logical channel group of the logical channel group to which data is to be sent, and at least one first logical channel group exists in the logical channel group to which data is to be sent, at least one first logic The number of channel groups is smaller than the number of the logical channel groups, and the part of the logical channel group includes the at least one first logical channel group, and the at least one first logical channel group of the part of the logical channel group
  • the priority of the other logical channel groups except the priority of the logical channel group other than the part of the logical channel group in the logical channel group to which data is to be transmitted is higher.
  • the at least one first logical channel group is used as the part of the logical channel group. If the number of the at least one first logical channel group is greater than the number of the logical channel groups, a part of the first logical channel group in the at least one first logical channel group is used as the part of the logical channel group.
  • the priority of each of the first logical channel groups in the part of the logical channel group is higher than the first logic in the at least one first logical channel group except the part of the first logical channel group.
  • the priority of the channel group For example, the air interface format corresponding to the first logical channel group may be the same as the air interface format used when the first indication information is sent.
  • the foregoing first indication information is further used to indicate a length of the first indication information.
  • the network device described above may further include a transmitting module 23.
  • the sending module 23 is configured to send the second indication information, where the second indication information is used to indicate a priority corresponding to the at least one logical channel group of the terminal device.
  • the network device provided by the embodiment of the present application may perform the operations of the network device in the foregoing method embodiment shown in FIG. 5, and the implementation principle and technical effects are similar, and details are not described herein again.
  • the actual implementation of the above sending module may be a transmitter, and the receiving module may be a receiver when actually implemented, and the processing module may be implemented by software in the form of a processing component call; or may be implemented in the form of hardware.
  • the processing module may be a separately set processing element, or may be integrated in one of the above-mentioned devices, or may be stored in the memory of the above device in the form of program code, by a processing element of the above device. Call and execute the functions of the above processing module.
  • all or part of these modules can be integrated or implemented independently.
  • the processing elements described herein can be an integrated circuit that has signal processing capabilities. In the implementation process, each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.
  • the above modules may be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (digital) Singnal processor (DSP), or one or more Field Programmable Gate Array (FPGA).
  • ASICs Application Specific Integrated Circuits
  • DSP digital Singnal processor
  • FPGA Field Programmable Gate Array
  • the processing component may be a general purpose processor, such as a central processing unit (CPU) or other processor that can call the program code.
  • CPU central processing unit
  • these modules can be integrated and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • FIG. 10 is a schematic structural diagram of another terminal device according to an embodiment of the present application.
  • the terminal device includes at least a processor 504 and a transceiver 508.
  • the terminal device may further include a memory 519 that stores computer execution instructions;
  • the processor 504 is configured to generate first indication information, where the first indication information is used to indicate a logical channel group of data to be sent, and a data volume to be sent of a part of the logical channel group of the logical channel group to which data is to be sent.
  • the transceiver 508 is configured to send the first indication information generated by the processor 504.
  • the transceiver 508 is further configured to receive the second indication information, where the second indication information is used to indicate a priority corresponding to the at least one logical channel group of the terminal device.
  • the processor 504 can be used to perform the actions implemented by the terminal device described in the foregoing method embodiments, and the transceiver 508 can be used to perform the action that the terminal device described in the foregoing method embodiment receives or sends to the network device.
  • the transceiver 508 can be used to perform the action that the terminal device described in the foregoing method embodiment receives or sends to the network device.
  • the processor 504 and the memory 519 described above may be integrated into one processing device, and the processor 504 is configured to execute program code stored in the memory 519 to implement the above functions.
  • the memory 519 can also be integrated in the processor 504 when implemented.
  • the terminal device may further include a power source 512 for providing power to various devices or circuits in the terminal device.
  • the terminal device may include an antenna 510 for transmitting uplink data or uplink control signaling output by the transceiver 508 through the wireless signal. Send it out.
  • the terminal device may further include one or more of an input unit 514, a display unit 516, an audio circuit 518, a camera 520, a sensor 522, and the like, and the audio circuit further A speaker 5182, a microphone 5184, and the like can be included.
  • FIG. 11 is a schematic structural diagram of another network device according to an embodiment of the present disclosure. As shown in FIG. 11, the network device 600 includes at least a processor 604 and a transceiver 608.
  • the transceiver 608 of the network device is configured to receive the first indication information, and the processor 604 is configured to determine, according to the first indication information, a logical channel group to be sent data, and the logical channel to be sent data. The amount of data to be sent for a portion of the logical channel group of the group.
  • the transceiver 608 of the network device is further configured to send the second indication information, where the second indication information is used to indicate a priority corresponding to the at least one logical channel group of the terminal device.
  • the above-mentioned processor 604 can be used to perform the actions implemented by the network device described in the foregoing method embodiments, and the transceiver 608 can be used to perform the action that the network device described in the foregoing method embodiment receives or sends to the terminal device.
  • the transceiver 608 can be used to perform the action that the network device described in the foregoing method embodiment receives or sends to the terminal device.
  • the processor 604 and the memory 603 may be combined to form a processing device, and the processor 604 is configured to execute the program code stored in the memory 603 to implement the above functions.
  • the memory 603 can also be integrated in the processor 604 when implemented.
  • the network device may further include an antenna 610, configured to send downlink data or downlink control signaling output by the transceiver 608 by using a wireless signal.
  • the processor 504 of the terminal device and the processor 604 of the network device may be a central processing unit (CPU), a network processor (NP) or a combination of a CPU and an NP.
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL) or any combination.
  • the memory 519 of the terminal device and the memory 603 of the network device may include a volatile memory, such as a random access memory (RAM); and may also include a non-volatile memory.
  • a volatile memory such as a random access memory (RAM)
  • non-volatile memory such as a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); the memory may also include a combination of the above types of memories.
  • the terminal can perform wireless communication with the network device.
  • the network device in the embodiment of the present application may correspond to the network device in the method embodiment of the present application
  • the terminal device may correspond to the terminal device in the method embodiment of the present application.
  • the foregoing and other operations and/or functions of the respective modules of the network device and the terminal device are respectively used to implement the corresponding processes of the foregoing method embodiments.
  • the description of the method embodiments of the present application may be applied to the device embodiment, where No longer.
  • FIG. 12 is a schematic structural diagram of a data communication system according to an embodiment of the present application.
  • the above data communication system may include: a terminal device 51 and a network device 52.
  • the terminal device 51 may be any of the terminal devices in the foregoing embodiments.
  • the network device 52 may be any network device in the foregoing embodiment, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • the terminal device may have insufficient number of idle bits in the MAC PDU to fill the LCG capable of indicating all data to be sent, and the to-be-sent data of all LCGs to be sent data.
  • a first indication information whose length is shorter than the length of the BSR may be generated, by using the first indication information, indicating that the LCG of the data to be sent on the terminal device, and a part of the LCG of the LCG to be sent data are to be sent. The amount of data.
  • the terminal device can also indicate to the network device, by using the first indication information, which LCGs of the data to be sent on the terminal device, so that the network device can be timely, And accurately knowing which LCGs on the terminal device are to be sent in addition to the LCG indicating the amount of data to be sent, so that the network device allocates uplink transmission resources to the terminal device more accurately and reasonably, and improves allocation of uplink transmission resources. effectiveness.
  • 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 in an electrical, mechanical or other form.
  • 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.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • 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.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various 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. .
  • a 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, computer instructions can be wired from a website site, computer, server or data center (eg Coax, fiber, digital subscriber line (DSL) or wireless (eg, infrared, wireless, microwave, etc.) is transmitted to another website, computer, server, or data center.
  • 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.
  • Useful media can be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)).

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Abstract

本申请实施例提供一种数据传输方法、设备和通信系统，该方法包括：终端设备生成第一指示信息，第一指示信息用于指示有待发送数据的逻辑信道组、以及、有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量；终端设备发送第一指示信息。本申请实施例提供的数据传输方法、设备和通信系统，终端设备可以在MAC PDU的空闲比特数不足时，通过第一指示信息向网络设备指示终端设备上还有哪些有待发送数据的LCG，以使得网络设备可以及时的、且准确的获知终端设备上还有哪些LCG有待发送数据，便于网络设备更加准确和合理的为终端设备分配上行传输资源，提高了分配上行传输资源的效率。

Description

数据传输方法、设备和通信系统
本申请要求于2017年08月11日提交中国专利局、申请号为201710686889.7、申请名称为“数据传输方法、设备和通信系统”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
本申请实施例涉及通信技术，尤其涉及一种数据传输方法、设备和通信系统。
背景技术
在未来5G通信系统中，终端设备可以通过缓冲区状态报告(Buffer Status Report，BSR)向网络设备上报终端设备的待发送数据量。因此，网络设备可以基于终端设备发送的BSR，向终端设备分配上行传输资源。由于不同业务的数据是通过不同的逻辑信道(Logical Channel，LCH)传输。因此，为了避免上报BSR的信令开销过大，未来5G通信系统沿用了长期演进(Long Term Evolution，LTE)通信系统中的逻辑信道组(Logical Channel Group，LCG)的概念。因此，终端设备可以以LCG为单位上报BSR。这样，网络设备可以通过终端设备发送的BSR，获知终端设备上所有有待发送数据的LCG的待发送数据量。
在未来5G通信系统中，终端设备可以将各个LCH上的待发送数据填充到媒体接入控制(Media Access Control，MAC)协议数据单元(Protocol Data Unit，PDU)中发送给网络设备。在终端设备当前各个LCH的待发送数据不足以填满该MAC PDU时，即该MAC PDU中还存在空闲比特位置时，则上述终端设备可以在该MAC PDU的空闲比特位置填充一个BSR。
然而，当上述MAC PDU的空闲比特数不足以填充上述BSR时，上述终端设备在该MAC PDU的空闲比特位置上如何向网络设备发送BSR是一个亟待解决的问题。
发明内容
本申请实施例提供一种数据传输方法、设备和通信系统，用于解决现有技术中终端设备在MAC PDU的空闲比特位置上如何向网络设备发送BSR的技术问题。
第一方面，本申请实施例提供一种数据传输方法，该方法包括：
终端设备生成第一指示信息，所述第一指示信息用于指示有待发送数据的逻辑信道组、以及、所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量；
所述终端设备发送所述第一指示信息。
通过第一方面提供的数据传输方法，终端设备可以在MAC PDU的空闲比特数不足以填充能够指示所有有待发送数据的LCG，以及，所有有待发送数据的LCG的待发送数据量的BSR时，可以生成一个长度短于该BSR长度的第一指示信息，以通过该第一指示信息指示终端设备上有待发送数据的LCG、以及、有待发送数据的LCG的一部分LCG的待 发送数据量。通过这种方式，使得终端设备可以在MAC PDU的空闲比特数不足时，还可以通过第一指示信息向网络设备指示终端设备上还有哪些有待发送数据的LCG，以使得网络设备可以及时的、且准确的获知除了指示有待发送数据量的LCG之外，终端设备上还有哪些LCG有待发送数据，以便于网络设备更加准确和合理的为终端设备分配上行传输资源，提高了分配上行传输资源的效率。
在一种可能的实施方式中，所述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级。
通过该可能的实施方式提供的数据传输方法，终端设备在MAC PDU的空闲比特数不足时，可以基于每个LCG的优先级，选择第一指示信息指示有待发送数据的LCG中哪些LCG的待发送数据量，以使得网络设备可以基于每个LCG的优先级，获知第一指示信息所指示的是哪些LCG的待发送数据量，以便于网络设备更加准确和合理的为终端设备分配用于发送优先级较高的LCG的待发送数据的上行传输资源，提高了分配上行传输资源的效率。
在一种可能的实施方式中，所述一部分逻辑信道组中的每个逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。
通过该可能的实施方式提供的数据传输方法，终端设备在MAC PDU的空闲比特数不足时，可以基于每个LCG的优先级，选择第一指示信息指示有待发送数据的LCG中哪些LCG的待发送数据量，以使得网络设备可以基于每个LCG的优先级，获知第一指示信息所指示的是哪些LCG的待发送数据量，以便于网络设备更加准确和合理的为终端设备分配用于发送优先级较高的LCG的待发送数据的上行传输资源，提高了分配上行传输资源的效率。
在一种可能的实施方式中，所述有待发送数据的逻辑信道组中存在至少一个第一逻辑信道组；
在所述至少一个第一逻辑信道组的数量小于所述一部分逻辑信道组的数量时，所述一部分逻辑信道组包括所述至少一个第一逻辑信道组，且所述一部分逻辑信道组中除所述至少一个第一逻辑信道组之外的其他逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级；
在所述至少一个第一逻辑信道组的数量等于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组作为所述一部分逻辑信道组；
在所述至少一个第一逻辑信道组的数量大于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组中的一部分第一逻辑信道组作为所述一部分逻辑信道组，所述一部分逻辑信道组中的每个第一逻辑信道组的优先级，均高于所述至少一个第一逻辑信道组中除所述一部分第一逻辑信道组之外的其他第一逻辑信道组的优先级。
通过该可能的实施方式提供的数据传输方法，终端设备在MAC PDU的空闲比特数不足时，可以在有待发送数据的LCG中存在至少一个第一LCG时，通过第一指示信息优先指示第一LCG的待发送数据量，以使得网络设备可以基于第一指示信息，优先获知第一LCG的待发送数据量，以便于网络设备更加准确和合理的为终端设备分配用于发送第一LCG的待发送数据的上行传输资源，提高了分配上行传输资源的效率。
在一种可能的实施方式中，所述第一逻辑信道组对应的空口格式与发送所述第一指示信息时所使用的空口格式相同。
通过该可能的实施方式提供的数据传输方法，终端设备在MAC PDU的空闲比特数不足时，可以在有待发送数据的LCG中存在至少一个与终端设备发送第一指示信息所使用的空口格式相同的第一LCG时，通过第一指示信息优先指示第一LCG的待发送数据量，以使得网络设备可以基于第一指示信息，优先获知与发送第一指示信息所使用的空口格式相同的第一LCG的待发送数据量，以便于网络设备更加准确和合理的为终端设备分配该空口格式对应的上行传输资源，提高了分配上行传输资源的效率。
在一种可能的实施方式中，所述第一指示信息还用于指示所述第一指示信息的长度。
通过该可能的实施方式提供的数据传输方法，通过指示第一指示信息的长度，使得网络设备可以基于第一指示信息的长度，完成对第一指示信息的解码等，确保了网络设备对第一指示信息的解码效率。
在一种可能的实施方式中，所述方法还包括：
所述终端设备接收第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
通过该可能的实施方式提供的数据传输方法，在每个LCG在不同场景或情况下可以对应不同的优先级时，可以通过第二指示信息动态的指示每个LCG的优先级，使得每个LCG的优先级可以灵活多变，扩大了上述数据传输方法的应用场景。
第二方面，本申请实施例提供一种数据传输方法，该方法包括：
网络设备接收第一指示信息；
所述网络设备根据所述第一指示信息，确定有待发送数据的逻辑信道组，以及，所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量。
在一种可能的实施方式中，所述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级。
在一种可能的实施方式中，所述一部分逻辑信道组中的每个逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。
在一种可能的实施方式中，所述有待发送数据的逻辑信道组中存在至少一个第一逻辑信道组；
在所述至少一个第一逻辑信道组的数量小于所述一部分逻辑信道组的数量时，所述一部分逻辑信道组包括所述至少一个第一逻辑信道组，且所述一部分逻辑信道组中除所述至少一个第一逻辑信道组之外的其他逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级；
在所述至少一个第一逻辑信道组的数量等于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组作为所述一部分逻辑信道组；
在所述至少一个第一逻辑信道组的数量大于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组中的一部分第一逻辑信道组作为所述一部分逻辑信道组，所述一部分逻辑信道组中的每个第一逻辑信道组的优先级，均高于所述至少一个第一逻辑信道组中除所述一部分第一逻辑信道组之外的其他第一逻辑信道组的优先级。
在一种可能的实施方式中，所述第一逻辑信道组对应的空口格式与发送所述第一指示信息时所使用的空口格式相同。
在一种可能的实施方式中，所述第一指示信息，还用于指示所述第一指示信息的长度。
在一种可能的实施方式中，所述方法还包括：
所述网络设备发送第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
上述第二方面以及第二方面的各可能的实施方式所提供的数据传输方法，其有益效果可以参见上述第一方面和第一方面的各可能的实施方式所带来的有益效果，在此不再赘述。
第三方面，本申请实施例提供一种终端设备，包括：
处理器，用于生成第一指示信息，所述第一指示信息用于指示有待发送数据的逻辑信道组、以及、所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量；
收发器，用于发送所述第一指示信息。
在一种可能的实施方式中，所述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级。
在一种可能的实施方式中，所述一部分逻辑信道组中的每个逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。
在一种可能的实施方式中，所述有待发送数据的逻辑信道组中存在至少一个第一逻辑信道组；
在所述至少一个第一逻辑信道组的数量小于所述一部分逻辑信道组的数量时，所述一部分逻辑信道组包括所述至少一个第一逻辑信道组，且所述一部分逻辑信道组中除所述至少一个第一逻辑信道组之外的其他逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级；
在所述至少一个第一逻辑信道组的数量等于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组作为所述一部分逻辑信道组；
在所述至少一个第一逻辑信道组的数量大于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组中的一部分第一逻辑信道组作为所述一部分逻辑信道组，所述一部分逻辑信道组中的每个第一逻辑信道组的优先级，均高于所述至少一个第一逻辑信道组中除所述一部分第一逻辑信道组之外的其他第一逻辑信道组的优先级。
在一种可能的实施方式中，所述第一逻辑信道组对应的空口格式与发送所述第一指示信息时所使用的空口格式相同。
在一种可能的实施方式中，所述第一指示信息还用于指示所述第一指示信息的长度。
在一种可能的实施方式中，所述终端设备还包括：
收发器，用于接收第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
上述第三方面以及第三方面的各可能的实施方式所提供的终端设备，其有益效果可以参见上述第一方面和第一方面的各可能的实施方式所带来的有益效果，在此不再赘述。
第四方面，本申请实施例提供一种网络设备，包括：
收发器，用于接收第一指示信息；
处理器，用于根据所述第一指示信息，确定有待发送数据的逻辑信道组，以及，所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量。
在一种可能的实施方式中，所述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级。
在一种可能的实施方式中，所述一部分逻辑信道组中的每个逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。
在一种可能的实施方式中，所述有待发送数据的逻辑信道组中存在至少一个第一逻辑信道组；
在所述至少一个第一逻辑信道组的数量小于所述一部分逻辑信道组的数量时，所述一部分逻辑信道组包括所述至少一个第一逻辑信道组，且所述一部分逻辑信道组中除所述至少一个第一逻辑信道组之外的其他逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级；
在所述至少一个第一逻辑信道组的数量等于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组作为所述一部分逻辑信道组；
在所述至少一个第一逻辑信道组的数量大于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组中的一部分第一逻辑信道组作为所述一部分逻辑信道组，所述一部分逻辑信道组中的每个第一逻辑信道组的优先级，均高于所述至少一个第一逻辑信道组中除所述一部分第一逻辑信道组之外的其他第一逻辑信道组的优先级。
在一种可能的实施方式中，所述第一逻辑信道组对应的空口格式与发送所述第一指示信息时所使用的空口格式相同。
在一种可能的实施方式中，所述第一指示信息，还用于指示所述第一指示信息的长度。
在一种可能的实施方式中，所述网络设备还包括：
收发器，用于发送第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
上述第四方面以及第四方面的各可能的实施方式所提供的网络设备，其有益效果可以参见上述第二方面和第二方面的各可能的实施方式所带来的有益效果，在此不再赘述。
第五方面，本申请实施例提供一种终端设备，所述终端设备包括：处理器和存储器，以及存储在所述存储器上可供所述处理器执行的计算机程序，
其中，所述处理器执行所述计算机程序实现如第一方面和第一方面的各可能的实施方式所提供的数据传输方法。
第六方面，本申请实施例提供一种网络设备，所述网络设备包括：处理器和存储器，以及存储在所述存储器上可供所述处理器执行的计算机程序；
其中，所述处理器执行所述计算机程序实现如第二方面和第二方面的各可能的实施方式所提供的数据传输方法。
第七方面，本申请实施例提供一种终端设备，包括用于执行以上第一方面的方法的至少一个处理元件(或芯片)。
第八方面，本申请实施例提供一种网络设备，包括用于执行以上第二方面的方法的至少一个处理元件(或芯片)。
第九方面，本申请实施例提供一种数据通信系统，包括：前述任一项所述的终端设备，以及，前述任一项所述的网络设备。
第十方面，本申请实施例提供一种程序，该程序在被处理器执行时用于执行以上第一方面的方法。
第十一方面，本申请实施例提供一种程序，该程序在被处理器执行时用于执行以上第二方面的方法。
第十二方面，本申请实施例提供一种程序产品，例如计算机可读存储介质，包括第十方面的程序。
第十三方面，本申请实施例提供一种程序产品，例如计算机可读存储介质，包括第十一方面的程序。
第十四方面，本申请实施例提供一种计算机可读存储介质，计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面的方法。
第十五方面，本申请实施例提供一种计算机可读存储介质，计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第二方面的方法。
本申请实施例提供的数据传输方法、设备和通信系统，终端设备可以在MAC PDU的空闲比特数不足以填充能够指示所有有待发送数据的LCG，以及，所有有待发送数据的LCG的待发送数据量的BSR时，可以生成一个长度短于该BSR长度的第一指示信息，以通过该第一指示信息指示终端设备上有待发送数据的LCG、以及、有待发送数据的LCG的一部分LCG的待发送数据量。通过这种方式，使得终端设备可以在MAC PDU的空闲比特数不足时，还可以通过第一指示信息向网络设备指示终端设备上还有哪些有待发送数据的LCG，以使得网络设备可以及时的、且准确的获知除了指示有待发送数据量的LCG之外，终端设备上还有哪些LCG有待发送数据，以便于网络设备更加准确和合理的为终端设备分配上行传输资源，提高了分配上行传输资源的效率。
附图说明
图1为本申请实施例所涉及的一种通信系统的框架图；
图2为现有的一种BSR的示意图；
图3为现有的另一种BSR的示意图；
图4为本申请实施例提供的一种BSR的示意图；
图5为本申请实施例提供的一种数据传输方法的信令流程图；
图6为本申请实施例提供的另一种BSR的示意图；
图7为本申请实施例提供的又一种BSR的示意图；
图8为本申请实施例提供的一种终端设备的结构示意图；
图9为本申请实施例提供的一种网络设备的结构示意图；
图10为本申请实施例提供的另一种终端设备的结构示意图；
图11为本申请实施例提供的另一种网络设备的结构示意图；
图12为本申请实施例提供的一种数据通信系统的结构示意图。
具体实施方式
图1为本申请实施例所涉及的一种通信系统的框架图。如图1所示，该通信系统包括：网络设备01和终端设备02。网络设备01和终端设备02可以使用至少一种空口格式进行通信。其中，
网络设备：可以是前述基站，或者各种无线接入点，或者可以是指接入网中在空中接口上通过一个或多个扇区与终端设备进行通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是全球移动通讯(Global System of Mobile communication，GSM)或码分多址(Code Division Multiple Access，CDMA)中的基站(Base Transceiver Station，BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，WCDMA)中的基站(NodeB，NB)，还可以是长期演进(Long Term Evolution，LTE)中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者未来5G网络中的基站gNB等，在此并不限定。
终端设备：可以是无线终端也可以是有线终端，无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment)，具有网络接入功能的传感器，在此不作限定。
上述所说的空口格式可以是指以下至少一种参数或信息(即，配置信息的一例)相异的空口，具体地：
波形参数：或者说波形的参数，是指能够指示或者说决定一种波形的参数。作为实例而非限定，在本申请实施例中，该波形参数可以包括以下至少一种参数：正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)技术中使用的波形参数、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-OFDM)中使用的波形参数、滤波器正交频分复用(filter Orthogonal Frequency Division Multiplexing，filter OFDM)技术中使用的波形参数、通用滤波器多载波(Universal Filtered Multi-Carrier，UFMC)技术中使用的波形参数、滤波器组多载波(Filter Bank Multicarrier，FBMC)技术中使用的波形参数、广义频分复用(Generalized Frequency Division Multiplexing，GFDM)技术中使用的波形参数等。
调制方式：在通信技术中，为了保证通信效果，克服远距离信号传输中的问题，可以通过调制将信号频谱搬移到高频信道中进行传输。这种将要发送的信号加载到高频信号的 过程就叫调制。作为实例而非限定，在本申请实施例中，调制方式可以包括以下至少一种方式：幅移键控(Amplitude Shift Keying，ASK)调制、相移键控(Phase Shift Keying，PSK)调制、频移键控(Frequency Shift Keying，FSK)调制、正交振幅调制(Quadrature Amplitude Modulation，QAM)调制、最小频移键控(Minimum Shift Keying，MSK)调制、高斯滤波最小移频键(Gaussian Filtered Minimum Shift Keying，GMSK)调制、OFDM调制。
带宽配置：在本申请实施例中，带宽配置可以指空口所要求的频域资源上的使用宽度。作为实例而非限定，针对宽带传输业务所对应的带宽配置，可以指空口所要求的最小频域资源宽度，或者说子载波数量。针对窄带传输业务所对应的带宽配置，可以指空口所要求的最大频域资源宽度，或者说子载波数量。
无线帧配置方式：子载波间隔(Subcarrier Spacing，SCS)、符号长度、循环前缀(Cyclic Prefix，CP)、定时(Timing，例如上行授权和上行数据发送之间的时间长度)、双工模式、传输时间间隔(Transmission Time Interval，TTI)长度、无线帧和无线子帧的长度。其中，双工模式例如可以分为全双工、半双工(包括半双工的上下行配比)、或灵活双工等。需要说明的是，在某些空口中，双工模式可以固定也可以灵活变化，传输时间间隔可以是固定值也可以灵活变化，本申请实施例并未特别限定。
资源复用方式：作为实例而非限定，在本申请实施例中，资源复用方式可以包括以下至少一种方式：
频分复用(Frequency Division Multiplexing，FDM)。即，将用于传输信道的总带宽划分成若干个子频带(或称子信道)，每一个子信道传输1路信号。频分复用要求总频率宽度大于各个子信道频率之和，同时为了保证各子信道中所传输的信号互不干扰，应在各子信道之间设立隔离带，这样就保证了各路信号互不干扰(条件之一)。
时分复用(Time Division Multiplexing，TDM)。即，采用同一物理连接的不同时段来传输不同的信号，也能达到多路传输的目的。时分多路复用以时间作为信号分割的参量，故必须使各路信号在时间轴上互不重叠。时分复用就是将提供给整个信道传输信息的时间划分成若干时间片(简称：时隙)，并将这些时隙分配给每一个信号源使用。
空分复用(Space Division Multiplexing，SDM)。即，让同一个频段在不同的空间内得到重复利用。在移动通信中，能实现空间分割的基本技术就是采用自适应阵列天线，在不同的用户方向上形成不同的波束。并且，可以把空间的分割来区别不同的用户，也可以每个波束可提供一个无其他用户干扰的唯一信道，也可以把空间的分割来区别同一个用户的不同数据，还可以把空间的分割来区别同一个用户的相同数据，以求更高的增益。
码分复用(Code Division Multiplexing，CDM)。即，靠不同的编码来区分各路原始信号的一种复用方式。作为实例而非限定，可以包括以下至少一种：码分多址(Code Division Multiple Access，CDMA)、频分多址(Frequency Division Multiple Access，FDMA)、时分多址(Time Division Multiple Access，TDMA)和同步码分多址(Synchronous Code Division Multiple Access，SCDMA)。
信道配置方式：在本申请实施例中，可以采用不同的信道传输不同种类的数据或信号。从而，信道配置方式可以指一个信道所对应的时频资源、码域资源，空域资源(例如：指定波束)。作为实例而非限定，在本申请实施例中，无线通信所使用的信道可以包括以下至少一个信道或多个信道的组合：用于传输控制信息的控制信道(例如，可以包括上行控 制信道和下行控制信道)、用于传输数据的数据信道(例如，可以包括上行数据信道和下行数据信道)、用于传输参考信号的参考信道、用于发送接入信息的接入信道。
编码方式：编码是一种以提高通信有效性为目的而对信源符号进行的变换，或者说为了减少或消除信源利余度而进行的信源符号变换。例如，针对信源输出符号序列的统计特性来寻找某种方法，把信源输出符号序列变换为最短的码字序列，使后者的各码元所载荷的平均信息量最大，同时又能保证无失真地恢复原来的符号序列。作为实例而非限定，在本申请实施例中，编码方式可以包括以下至少一种方式：极化码(Polar Code)、拓博码(Turbo Code)、卷积码(Convolution Code)。
协议栈配置方式：协议栈(Protocol Stack)是指网络中各层协议的总和，其形象的反映了一个网络中文件传输的过程。即，由上层协议到底层协议，再由底层协议到上层协议。作为实例而非限定，在本申请实施例中，无线通信所使用的协议栈可以包括以下至少一个协议层或多个协议层的组合：分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路控制(Radio Link Control，RLC)层、媒体接入控制(Media Access Control，MAC)层、物理(Physical)层、无线资源管理(Radio Resource Control，RRC)层。其中，每层协议都可以存在多种协议实体。
多址接入方式：与多路复用不同，多址接入技术不需要各路信息集中在一起，而是各自经过调制送到信道上去，以及各自从信道上取下经调制而得到的所需信息，作为实例而非限定，在本申请实施例中，无线通信所使用的多址接入方式可以包括以下至少一种：FDMA、TDMA、CDMA、SCMA、非正交多址接入(Non Orthogonal Multiple Access，NOMA)、多用户共享接入(Multi-User Shared Access，MUSA)。
需要说明的是，上述通信系统可以是LTE通信系统，也可以是未来其他通信系统，例如5G通信系统等，在此不作限制。
在LTE通信系统中，不同业务的数据通过不同的LCH传输。因此，LTE通信系统引入了LCG的概念，一个LCG可以包括至少一个LCH。目前，LTE系统中一共有4个LCG。现有技术中，终端设备可以以LCG为单位向网络设备发送BSR。这样，网络设备可以通过终端设备发送的BSR，获知终端设备的哪个LCG存在待发送数据，以及，该LCG的待发送数据量是多少，利于网络设备为终端设备分配上行传输资源。
图2为现有的一种BSR的示意图。在LTE通信系统中，当终端设备只有一个LCG有待发送数据时，终端设备可以向网络设备发送如图2所示的短BSR。如图2所示，短BSR由一个字节(Oct1)组成，包括一个有待发送数据的LCG的标识(Identification，ID)、该LCG的待发送数据量。其中，该LCG的待发送数据量具体可以通过图2所示的缓存区大小(Buffer Size，BS)信息来指示。在后续图例中，BS信息均用于指示一个LCG的待发送数据量。图3为现有的另一种BSR的示意图。在LTE通信系统中，当终端设备有至少两个LCG有待发送数据时，终端设备可以向网络设备发送如图3所示的长BSR。如图3所示，长BSR由3个字节(即Oct1、Oct2、Oct3)组成。在该长BSR中，用于发送每个LCG的待发送数据量的字段是固定的。因此，网络设备在接收到长BSR后，可以通过每个LCG对应的字段上的取值，获知终端设备的每个LCG的待发送数据量。例如，BS信息#0为LCG#0的待传输数据量，BS信息#1为LCG#1的待传输数据量，BS信息#2为LCG#2的待传输数据量，BS信息#3为LCG#3的待传输数据量。
在LTE通信系统中，终端设备可以通过MAC PDU向网络设备发送数据。其中，MAC PDU包括MAC服务数据单元(Service Data Unit，SDU)、MAC SDU对应的子头、MAC控制控制元素(Control Element，CE)、MAC CE对应的子头。MAC SDU用于传输不同LCH的待发送数据，MAC CE用于传输一些控制信息。因此，终端设备在接收到网络设备发送的上行调度授权之后，可以根据上行调度授权所指示的用于发送MAC PDU的上行传输资源，对终端设备当前各个LCH的待发送数据进行逻辑信道优先级(Logical Channel Prioritization，LCP)处理，生成MAC PDU。然后，终端设备可以通过上行调度授权所指示的上行传输资源，将该MAC PDU发送给网络设备，实现各业务数据的传输。
在终端设备当前各个LCH的待发送数据不足以填满该MAC PDU时，即该MAC PDU中还存在空闲比特位置时，若该MAC PDU的空闲比特数能够填充一个BSR，则上述终端设备可以在该MAC PDU的空闲比特位置填充一个填充的(Padding)BSR。在MAC PDU中，BSR可以视为一个MAC CE，因此，在本申请实施例中，BSR也称为BSR MAC CE。
现有技术中，在MAC PDU的空闲比特数大于或等于短BSR+子头对应的比特数、且小于长BSR+子头对应的比特数时，若终端设备上只有1个LCG有待发送数据，则上述终端设备可以在MAC PDU中填充一个短BSR。若终端设备上有多个LCG有待发送数据，则上述终端设备可以在MAC PDU中填充一个截断的BSR。其中，截断的BSR与图1所示的短BSR格式相同。即，截断的BSR也只能用于指示一个有待发送数据的LCG的标识，以及，该LCG的待发送数据量。截断的BSR与短BSR的区别在于，截断的BSR的子头与短BSR的子头不同。因此，网络设备通过截断的BSR的子头，可以获知终端设备是否真的只有一个LCG有待发送数据。
图4为本申请实施例提供的一种BSR的示意图。如图4所示，在未来5G通信系统中，可能会将LCH分成8个LCG。目前，5G通信系统中的BSR的格式还在讨论，其中一种可能被选中的BSR的格式可以图4所示。
以图4所示的BSR为例，BSR的第一字节(Oct1)通过位图(bitmap)指示终端设备上所有有待发送数据的LCG。其中，位图中的一个比特位对应一个LCG。在位图中，可以按照LCG编号从小到大的顺序，依次将每个比特位与一个LCG对应。图4中示出的是按照LCG编号从小到大的顺序，将每个比特位与一个LCG对应的BSR示意图。当比特位为第一值时，指示该比特位对应的LCG为有待发送数据的LCG，当比特位为第二值时，指示该比特位对应的LCG为无待发送数据的LCG。示例性的，当第一值为1时，第二值可以为0，或者，当第一值为0时，第二值可以为1。
BSR的第一字节(Oct1)之后的后续字节，用于指示第一字节所指示的有待发送数据的LCG的待发送数据量。其中，一个字节用于指示一个有待发送数据的LCG的待发送数据量(即BS信息)。各个有待发送数据的LCG的待发送数据量，可以根据各个LCG在位图中的顺序依次排列。示例性的，以第一值为1、第二值为0为例，假定图4所示的8个LCG中的每个LCG均有待发送数据，则Oct1可以为11111111。Oct2为LCG 0的待传输数据量，Oct3为LCG 1的待传输数据量，Oct4为LCG2的待传输数据量，以此类推。在该场景下，BSR一共有9个字节。假定图4所示的8个LCG中有2个LCG有待发送数据，分别为LCG2和LCG7，则Oct1可以为00100001。Oct2为LCG2的待传输数据量，Oct3为LCG7的待传输数据量。在该场景下，BSR一共有3个字节。也就是说，在未来5G通 信系统中，BSR的长度可以根据有待发送数据的LCG的个数变化。
未来5G通信系统中，终端设备可能仍然通过MAC PDU向网络设备发送数据。因此，可能存在终端设备当前各个LCH的待发送数据不足以填满MAC PDU，且该MAC PDU的空闲比特数不足以填充上述图4所示的BSR的情况。即MAC PDU的空闲比特数不足以填充携带有所有有待发送数据的LCG的待发送数据量的BSR。在该情况下，若上述终端设备沿用上述所说的截断的BSR，则网络设备在接收到该截断的BSR后，仅获知终端设备上还有待发送数据的LCG，但是，网络设备并不能获知到底是哪些LCG，不利于网络设备为终端设备分配上行传输资源。
因此，考虑到上述问题，本申请实施例提供了一种数据传输方法。下面以未来5G通信系统，以及图4所示的BSR为例，通过一些实施例对本申请实施例的技术方案进行详细说明。下面这几个实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例不再赘述。
图5为本申请实施例提供的一种数据传输方法的信令流程图。本实施例涉及的是终端设备在MAC PDU的空闲比特数不足以填充上述图4所示的BSR时，向网络设备发送用于指示有待发送数据的逻辑信道组、以及、有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量的第一指示信息的具体过程。如图5所示，该方法可以包括：
S101、终端设备生成第一指示信息。
其中，第一指示信息用于指示有待发送数据的LCG、以及、有待发送数据的LCG的一部分LCG的待发送数据量。
S102、终端设备向网络设备发送该第一指示信息。
S103、网络设备接收该第一指示信息。
S104、网络设备根据该第一指示信息，确定有待发送数据的LCG，以及，有待发送数据的LCG的一部分LCG的待发送数据量。
在本实施例中，上述终端设备可以在MAC PDU的空闲比特数不足以填充上述图4所示的BSR时，即不足以填充能够指示终端设备所有有待发送数据的LCG、以及、所有有待发送数据的LCG的待发送数据量的BSR时，上述终端设备可以生成一个长度短于该BSR长度的第一指示信息，以通过该第一指示信息指示终端设备上有待发送数据的LCG、以及、有待发送数据的LCG的一部分LCG的待发送数据量。通过这种方式，使得终端设备可以在MAC PDU的空闲比特数不足时，还可以通过第一指示信息向网络设备指示终端设备上还有待发送数据的LCG。这样，网络设备在接收到该第一指示信息后，可以及时的、且准确的获知除了指示有待发送数据量的LCG之外，终端设备上还有哪些LCG有待发送数据，以便于网络设备更加准确和合理的为终端设备分配上行传输资源，提高了分配上行传输资源的效率。
在本实施例中，上述第一指示信息可以沿用上述图4所示的BSR格式。即第一指示信息的第一个字节用于指示有待发送数据的LCG，后续字节用于指示有待发送数据的LCG的一部分LCG的待发送数据量。其中，一个字节用于指示一个LCG的待发送数据量。上述第一指示信息与图4所示的BSR区别在于，第一指示信息比图4所示的BSR少指示了一部分有待发送数据的LCG的待发送数据量。因此，上述第一指示信息在5G通信系统中也可以称为截断的(Truncated)BSR。本领域技术人员可以理解的是，上述第一指示信息在5G 移动通信系统可能仍然沿用Truncated BSR或BSR的术语，也可能采用其他的术语。因此，本申请实施例对第一指示信息在各个通信系统中的命名不作限定。
下面对第一指示信息指示哪些有待发送的数据的LCG，以及，有待发送数据的LCG的哪些LCG的待发送数据量进行介绍和说明。
上述第一指示信息所指示的有待发送数据的LCG，可以为终端设备上所有有待发送数据的LCG，还可以为终端设备上所有有待发送数据的LCG中的一部分有待发送数据的LCG。
例如，未来5G通信系统引入了上述所列举的多种空口格式。其中，每个LCH可以映射到至少一种空口格式上。即，LCH上的待发送数据可以映射到该LCH对应的时频资源上进行传输。示例性的，假定网络设备配置有两种空口格式，分别为空口格式1和空口格式2。其中，终端设备的LCH1可以映射到空口格式1上，终端设备的LCH2可以映射到空口格式1和空口格式2上。即，LCH1的待发送数据可以使用空口格式1对应的时频资源进行传输，LCH2可以使用空口格式1对应的时频资源和空口格式2对应的时频资源进行传输。或者，LCH1的待发送数据可以优先或仅能使用空口格式1对应的时频资源进行传输，LCH2可以优先或仅能使用空口格式1对应的时频资源和空口格式2对应的时频资源进行传输等。
因此，上述所说的终端设备上所有有待发送数据的LCG中的一部分有待发送数据的LCG，可以为终端设备上所有有待发送数据的LCG中，对应的其中一种空口格式、与终端设备当前发送第一指示信息时所使用的空口格式相同的LCG，还可以为终端设备上所有有待发送数据的LCG中，待发送数据量大于预设门限的LCG，还可以为终端设备上所有有待发送数据的LCG中，对应的其中一种空口格式、与终端设备当前发送第一指示信息时所使用的空口格式相同的，且待发送数据量大于预设门限的LCG等，具体可以根据通信系统的配置确定。其中，上述LCG对应的空口格式可以为预设的，还可以为该LCG中所有LCH允许映射的空口格式，还可以为该LCG中任一LCH允许映射的空口格式，还可以为该LCG中任一当前存在待发送数据的LCH允许映射的空口格式等。
举例来说，假定上述终端设备当前有待发送数据的LCG为LCG1、LCG2、LCG4和LCG7。其中，LCG1对应的其中一种空口格式、LCG4对应的其中一种空口格式，与终端设备当前发送第一指示信息时所使用的空口格式相同，则上述终端设备可以生成用于指示LCG1和LCG4，以及，LCG1、LCG4中一部分LCG的待发送数据量的第一指示信息。
需要说明的是，在一种实现方式中，当终端设备根据每个LCH和空口格式的映射关系做LCP的时候，仅当上行资源的空口格式映射的LCH完全相同时，才可以对这些上行资源做联合处理。例如，当LCH0、LCH1和LCH2均映射到第一空口格式，但仅LCH0和LCH1映射到第二空口格式，那么使用第一空口格式的上行资源和使用第二空口格式的上行资源就不可以做联合处理。例如，当LCH0、LCH1和LCH2均映射到第一空口格式，且LCH0、LCH1和LCH2也都可以映射到第二空口格式，那么使用第一空口格式的上行资源和使用第二空口格式的上行资源就可以做联合处理。上述多个上行资源的联合处理，指的是终端设备可以将这些上行资源加起来，对总数做LCP。例如，当第一上行资源有100比特，第二上行资源有300比特时，且第一上行资源和第二上行资源可以做联合处理时，终端设备将两个上行资源加起来，一共有400比特的资源，然后对这400比特做LCP。
如前述描述所说，上述第一指示信息用于指示有待发送数据的LCG的一部分LCG的待发送数据量，此处的一部分LCG的个数可以根据系统配置确定，还可以根据终端设备能够发送的第一指示信息的长度确定等。例如，假定上述第一指示信息的长度为3个字节，由于第一指示信息的第一个字节(Oct1)用于指示有待发送数据的LCG，后续的字节中的每个字节可以用于指示一个有待发送数据的LCG的待发送数据量。因此，可以确定上述第一指示信息能够指示有待发送数据的LCG中的2个LCG的待发送数据量。需要说明的是，上述第一指示信息的长度可以为基站通过指示信息指示给终端设备的，还可以为终端设备根据MAC PDU上用于发送第一指示信息的比特数确定的。例如，在上述终端设备通过MAC PDU的空闲比特位置发送上述第一指示信息时，上述终端设备可以根据MAC PDU的空闲比特数确定上述第一指示信息的大小。
如前述描述所说，上述第一指示信息用于指示有待发送数据的LCG的一部分LCG的待发送数据量，此处的一部分LCG，具体可以根据该一部分LCG的个数从有待发送数据的LCG中确定，具体可以分为如下几种情况：
第一种情况：在终端设备上的每个LCG对应一个优先级时，此处的一部分LCG中的每个LCG的优先级，均高于有待发送数据的LCG中除该一部分LCG之外的其他LCG的优先级。这样，网络设备在接收到第一指示信息后，可以根据第一指示信息所指示的有待发送数据的LCG，以及，这些LCG的优先级，获知第一指示信息到底指示的是哪些LCG的待发送数据量。
其中，上述LCG的优先级可以为预设的，还可以为网络设备动态指示的。因此，在一些实施例中，网络设备还可以向终端设备发送第二指示信息，以通过该第二指示信息指示终端设备上的至少一个LCG对应的优先级。例如，通过第二指示信息仅指示优先级发生变化的LCG的优先级，或者，通过第二指示信息指示所有LCG的优先级等。这样，终端设备接收到该第二指示信息后，可以根据该第二指示信息，获知每个LCG的优先级。具体实现时，上述第二指示信息可以携带在物理层信令、系统信息块(System Information Block，SIB)信令、资源控制(Radio Resource Control，RRC)信令、下行控制信令等中，发送给终端设备。
可选的，在上述网络设备向终端设备发送第二指示信息之前，网络设备还可以确定终端设备上的每个LCG对应的优先级。具体实现时，上述网络设备可以根据每个LCG所包括的LCH的优先级，确定每个LCG的优先级。例如，网络设备可以将LCG中优先级最低的LCH的优先级作为该LCG的优先级，或者，将LCG中优先级最高的LCH的优先级作为该LCG的优先级等。在一些实施例中，当上述网络设备侧预设有多个优先级表格，每个优先级表格表征一种LCG与优先级的映射关系时，上述网络设备可以在确定当前所采用的优先级表格后，通过第二指示信息指示该优先级表格中所约束的LCG对应的优先级。
在一些实施例中，上述LCG的优先级可以与LCG所包括的LCH的优先级对应。例如，优先级高的LCG所包括的每个LCH的优先级、均高于优先级低的LCG所包括的每个LCH的优先级。也就是说，将优先级高的LCH分到一个LCG。这样，上述终端设备在MAC PDU的空闲比特数不足以填充上述图4所示的BSR时，根据终端设备上各LCG的LCH的优先级，即可获知各LCG的优先级，从而使得终端设备可以根据各LCG的优先级、有待发 送数据的LCG、一部分LCG的个数，从有待发送数据的LCG中确定出一部分LCG，并通过第一指示信息指示该一部分LCG的待发送数据量。相应地，网络设备在接收到终端设备发送的第一指示信息后，也可以采用如终端设备侧相同的方式，确定第一指示信息究竟指示的是有待发送数据的LCG中的哪些LCG的待发送数据量，对此不再赘述。
例如，优先级高的LCG所包括的LCH中优先级最高的LCH的优先级高于优先级低的LCG所包括的LCH中优先级最高的LCH的优先级，或者，优先级高的LCG所包括的LCH中优先级最低的LCH的优先级高于优先级低的LCG所包括的LCH中优先级最低的LCH的优先级。也就是说，LCG的优先级由LCG中优先级最高的LCH或优先级最低的LCH决定。上述终端设备根据各LCG中优先级最高的LCH的优先级或优先级最低的LCH的优先级，即可获知各LCG的优先级。可以理解，上述LCG的优先级的确定方式仅作为本申请实施例的一种示例，本申请实施例对LCG的优先级的确定方式，并不进行限定。
在一些实施例中，上述网络设备还可以向终端设备发送第三指示信息，以指示终端设备发送上述第一指示信息。这样，终端设备在接收到上述第三指示信息后，可以在MAC PDU的空闲比特数不足以填充上述图4所示的BSR时，向网络设备发送上述第一指示信息。具体实现时，上述第三指示信息可以携带在物理层信令、系统信息块(System Information Block，SIB)信令、资源控制(Radio Resource Control，RRC)信令、下行控制信令等中，发送给终端设备。
图6为本申请实施例提供的另一种BSR的示意图。例如上述有待发送数据的LCG为LCG0、LCG1、LCG2，其中，LCG2的优先级高于LCG0，LCG0的优先级高于LCG1。假定第一指示信息可以用于指示2个LCG的待发送数据量。则上述终端设备可以生成用于指示LCG0、LCG1、LCG2，以及，LCG0的待发送数据量、LCG2的待发送数据量的第一指示信息。如图6所示，上述第一指示信息的第一字节Oct1可以为11100000，第二字节Oct2用于指示LCG0的待发送数据量，第三字节Oct3用于指示LCG2的待发送数据量。
需要说明的是，在第一指示信息中，从有待发送数据的LCG选择出来的一部分LCG的待发送数据量，在第一指示信息中仍然按照各LCG在第一字节上所对应的比特位置进行排列。
第二种情况：终端设备上的每个LCG对应一个优先级、且上述有待发送数据的LCG中存在至少一个第一LCG。
在该场景下，若至少一个第一LCG的数量小于一部分LCG的数量，则一部分LCG包括至少一个第一LCG、且一部分LCG中除至少一个第一LCG之外的其他LCG的优先级，均高于有待发送数据的LCG中除一部分LCG之外的其他LCG的优先级。也就是说，一部分LCG中除了第一LCG之外，其他的LCG均为有待发送数据的LCG中优先级高的LCG。
在至少一个第一LCG的数量等于一部分LCG的数量时，可以直接将至少一个LCG作为上述一部分LCG。也就是说，一部分LCG中只包括第一LCG。
在至少一个第一LCG的数量大于一部分LCG的数量时，将至少一个第一LCG中的一部分第一LCG作为上述一部分LCG。其中，上述一部分LCG中的每个第一LCG的优先级，均高于第一LCG中除上述一部分LCG中的第一LCG之外的其他第一LCG的优先级。也就是说，一部分LCG中只包括优先级较高的第一LCG。
可选的，上述第一LCG可以为：有待发送数据的LCG中，与发送第一指示信息时所 使用的空口格式相同的LCG。
具体实现时，上述终端设备可以根据有待发送数据的LCG对应的空口格式、发送第一指示信息时所使用的空口格式，确定有待发送数据的LCG中是否存在第一LCG。若有待发送数据的LCG中的第一LCG小于第一指示信息可以指示的待发送数据量的LCG的个数，则上述终端设备还可以根据上述第一种情况所示的方式，按照各个LCG的优先级，再从剩余的有待发送数据的LCG中选择一些LCG，以使得第一LCG和从剩余的有待发送数据的LCG中选择一些LCG的总数，为第一指示信息可以指示的待发送数据量的LCG的个数。若有待发送数据的LCG的第一LCG的个数等于第一指示信息可以指示的待发送数据量的LCG的个数，则终端设备可以将这些第一LCG作为能够使用第一指示信息指示待发送数据量的LCG。若有待发送数据的LCG的第一LCG的个数大于第一指示信息可以指示的待发送数据量的LCG的个数，则终端设备可以按照各第一LCG的优先级，从多个第一LCG中选择出可以使用第一指示信息指示待发送数据量的第一LCG。
相应地，网络设备在接收到终端设备发送的第一指示信息后，也可以采用如终端设备侧相同的方式，确定第一指示信息究竟指示的是有待发送数据的LCG中的哪些LCG的待发送数据量，对此不再赘述。
可选的，上述第一LCG还可以为根据其他预设条件，从有待发送数据的LCG中筛选出来的LCG，例如上述第一LCG为时延小于或等于预设时延阈值的LCG，(该时延例如可以为LCG中，所传输的业务的时延要求最高的LCH的时延)等，对此不再一一赘述。
第三种情况：上述一部分LCG，还可以为按照LCG编号从小到大的顺序，以及，所确定的该一部分LCG的个数，从有待发送数据的LCG中选择出来的。
示例性的，假定上述有待发送数据的LCG为LCG0、LCG1、LCG4、LCG5，其中，该有待发送数据的LCG的一部分LCG的个数为3。以按照LCG编号从小到大的顺序从有待发送数据的LCG中选择一部分LCG为例，则上述一部分LCG例如可以为LCG0、LCG1、LCG4。也就是说，上述第一指示信息用于指示LCG0、LCG1、LCG4、LCG5，以及，LCG0的待发送数据量、LCG1的待发送数据量、LCG4的待发送数据量。
相应地，网络设备在接收到终端设备发送的第一指示信息后，也可以采用如终端设备侧相同的方式，确定第一指示信息究竟指示的是有待发送数据的LCG中的哪些LCG的待发送数据量，对此不再赘述。
如前述实施例所说，上述第一指示信息为终端设备在MAC PDU的空闲比特数不足以填充上述图4所示的BSR时，通过MAC PDU发送给网络设备的。因此，上述第一指示信息通常位于MAC PDU的尾部。在该场景下，网络设备在接收到该MAC PDU后，在对MAC PDU中位于第一指示信息之前的MAC CE或MAC SDU完成解码后，可以根据MAC PDU中剩余的比特数，自动判断出第一指示信息的长度。这样，网络设备可以基于第一指示信息的长度，完成对第一指示信息的解码。
可选的，在一些实施例中，若第一指示信息并非位于MAC PDU的尾部。也就是说，在MAC PDU中，在第一指示信息所在的比特位置之后，还存在MAC SDU或MAC CE。则在场景下，上述第一指示信息还可以用于指示第一指示信息的长度。从而使得网络设备可以基于第一指示信息的长度，完成对第一指示信息的解码等，确保了网络设备对第一指示信息的解码效率。
需要说明的是，虽然前述实施例均以终端设备在MAC PDU的空闲比特数不足以填充上述图4所示的BSR的场景，对上述第一指示信息进行了说明和介绍。但是本领域技术人员可以理解的是，上述第一指示信息包括但并不限于上述应用场景。在终端设备需要向网络设备发送用于指示LCG上的待发送数据量的指示信息的任意场景，均可以采用本申请实施例所提供的数据传输方法，对此不再赘述。同时，虽然本申请实施例以LCH分成8个LCG为例的BSR格式，对上述第一指示信息进行了介绍和说明。但是，本领域技术人员可以理解的是，上述第一指示信息的格式并不以此为限，在LCH被分成其他数量的LCG时，或，在用于指示待发送数据量的比特数发生变化时(例如，5个bit)，上述第一指示信息的格式也可以进行适应性调整或形变，对此不再赘述。
另外，在一些极端情况下，例如，在MAC PDU的空闲比特数仅能够填充一个字节的第一指示信息时，上述第一指示信息还可以仅用于指示有待发送数据的LCG，而不指示任何一个有待发送数据的LCG的待发送数据量，其实现方式和技术效果与上述类似，对此不再赘述。
本申请实施例提供的数据传输方法，上述终端设备可以在MAC PDU的空闲比特数不足以填充能够指示所有有待发送数据的LCG，以及，所有有待发送数据的LCG的待发送数据量的BSR时，可以生成一个长度短于该BSR长度的第一指示信息，以通过该第一指示信息指示终端设备上有待发送数据的LCG、以及、有待发送数据的LCG的一部分LCG的待发送数据量。通过这种方式，使得终端设备可以在MAC PDU的空闲比特数不足时，还可以通过第一指示信息向网络设备指示终端设备上还有哪些有待发送数据的LCG，以使得网络设备可以及时的、且准确的获知除了指示有待发送数据量的LCG之外，终端设备上还有哪些LCG有待发送数据，以便于网络设备更加准确和合理的为终端设备分配上行传输资源，提高了分配上行传输资源的效率。
上述实施例均以终端设备在MAC PDU的空闲比特数不足以填充上述图4所示的BSR时，上述终端设备可以生成一个长度短于该BSR长度的第一指示信息为例，对本申请实施例所提供的数据传输方法进行了说明和介绍。但是，在MAC PDU的空闲比特数不足以填充上述图4所示的BSR时，未来5G通信系统可能会允许终端设备在MAC PDU上填充一个截断的BSR，该截断的BSR可以用于指示一部分有待发送数据的LCG，以及，这些LCG的待发送数据量。也就是说，在MAC PDU的空闲比特不足以放下能够指示终端设备所有有待发送数据的LCG，以及，所有有待发送数据的LCG的待发送数据量的BSR时，终端设备可以在该MAC PDU上填充一个用于指示一部分有待发送数据的LCG，以及，这些LCG的待发送数据量的截断的BSR。
可选的，上述截断的BSR可以沿用上述图2或图4所示的BSR格式。以图4所示的BSR格式为例，截断的BSR的第一个字节用于指示被指示了待发送数据量的LCG，后续字节用于指示这些LCG的待发送数据量。其中，一个字节用于指示一个LCG的待发送数据量。上述截断的BSR与图4所示的BSR区别在于，截断的BSR少指示了一部分有待发送数据的LCG，以及，这些LCG的待发送数据量。需要说明的是，上述图2或图4所示的BSR仅为一种示例，上述截断的BSR可以采用如图2或图4所示的BSR结构，但是，用于指示待发送数据量的比特数可以适应性的形变，例如，可以为5个比特，9个比特等等。
图7为本申请实施例提供的又一种BSR的示意图。如图7所示，假定图7所示的8个LCG中的每个LCG均有待发送数据，但是当前MAC PDU的空闲比特数只能填充一个具有3个字节的截断的BSR。以LCG2和LCG4的待发送数据量可以被截断的BSR指示，则截断的BSR的Oct1可以为00101000。Oct2为LCG 2的待传输数据量，Oct3为LCG 4的待传输数据量。
通过这种方式，使得网络设备通过截断的BSR的第一字节，可以获知截断的BSR指示了哪些LCG，通过后续字节，可以获知所指示的这些LCG的待发送数据量，通过还可以通过该截断的BSR的子头，获知终端设备上还存在有待发送数据的LCG。
本领域技术人员可以理解的是，上述截断的BSR在5G移动通信系统可能仍然沿用Truncated BSR或BSR的术语，也可能采用其他的术语。因此，本申请实施例对截断的BSR在各个通信系统中的命名不作限定。另外，在截断的BSR沿用上述图2或图4所示的BSR格式时，截断的BSR可以与图2或图4所示的BSR使用不同的子头。因此，网络设备通过截断的BSR的子头，可以获知终端设备是否还有其他的LCG有待发送数据。
下面对该截断的BSR用于指示哪些有待发送的数据的LCG进行介绍和说明。
例如，上述截断的BSR用于指示终端设备上所有有待发送数据的LCG的一部分LCG，以及，这一部分LCG的待发送数据量，此处的一部分LCG的个数可以根据系统配置确定，还可以根据终端设备能够发送的截断的BSR的长度确定等。例如，假定上述截断的BSR的长度为3个字节，由于截断的BSR的第一个字节(Oct1)用于指示有待发送数据的LCG，后续的字节中的每个字节可以用于指示一个有待发送数据的LCG的待发送数据量。因此，可以确定上述截断的BSR能够指示有待发送数据的LCG中的2个LCG的待发送数据量。需要说明的是，上述截断的BSR的长度可以为基站通过指示信息指示给终端设备的，还可以为终端设备根据MAC PDU上用于发送截断的BSR的比特数确定的。例如，在上述终端设备通过MAC PDU的空闲比特位置发送上述截断的BSR时，上述终端设备可以根据MAC PDU的空闲比特数确定上述截断的BSR的大小。
如前述描述所说，上述截断的BSR用于指示终端设备上所有有待发送数据的LCG的一部分LCG，以及，这些LCG的待发送数据量，此处的一部分LCG，具体可以根据该一部分LCG的个数从有待发送数据的LCG中确定，具体可以分为如下几种情况：
第一种情况：在终端设备上的每个LCG对应一个优先级时，此处的一部分LCG中的每个LCG的优先级，均高于有待发送数据的LCG中除该一部分LCG之外的其他LCG的优先级。
其中，关于第一种情况的实现方式的描述可以参见前述实施例的描述，对此不再赘述。
另外，在本实施例中，在上述LCG的优先级可以与LCG所包括的LCH的优先级对应时，上述LCG的优先级可以根据该LCG上存在待发送数据的LCH的优先级确定。例如，上述优先级高的LCG所包括的有待发送数据的LCH中优先级最高的LCH的优先级，高于优先级低的LCG所包括的有待发送数据的LCH中优先级最高的LCH的优先级。或者，优先级高的LCG所包括的有待发送数据的LCH中优先级最低的LCH的优先级，高于，优先级低的LCG所包括的有待发送数据的LCH中优先级最低的LCH的优先级。也就是说，LCG的优先级由LCG中有待发送数据且优先级最高或最低的LCH决定。上述终端设备根据各LCG中优先级最高的LCH的优先级或优先级最低的LCH的优先级，即可获知各LCG 的优先级。可以理解，上述LCG的优先级的确定方式仅作为本申请实施例的一种示例，本申请实施例对LCG的优先级的确定方式，并不进行限定。
第二种情况：终端设备上的每个LCG对应一个优先级、且上述所有有待发送数据的LCG中存在至少一个第一LCG。
在该场景下，若至少一个第一LCG的数量小于一部分LCG的数量，则一部分LCG包括至少一个第一LCG，且一部分LCG中除至少一个第一LCG之外的其他LCG的优先级，均高于所有有待发送数据的LCG中除一部分LCG之外的其他LCG的优先级。也就是说，一部分LCG中除了第一LCG之外，其他的LCG均为所有有待发送数据的LCG中优先级高的LCG。
在至少一个第一LCG的数量等于一部分LCG的数量时，可以直接将至少一个LCG作为上述一部分LCG。也就是说，一部分LCG中只包括第一LCG。
在至少一个第一LCG的数量大于一部分LCG的数量时，将至少一个第一LCG中的一部分第一LCG作为上述一部分LCG。其中，上述一部分LCG中的每个第一LCG的优先级，均高于第一LCG中除上述一部分LCG中的第一LCG之外的其他第一LCG的优先级。也就是说，一部分LCG中只包括优先级较高的第一LCG。
可选的，上述第一LCG可以为：有待发送数据的LCG中，与发送截断的BSR时所使用的空口格式相同的LCG。该实现方式的描述可以参见前述实施例的描述，对此不再赘述。
可选的，上述第一LCG可以为：所有有待发送数据的LCG中，待发送数据量大于或等于第一预设阈值的LCG。其中，上述第一预设阈值具体可以根据系统配置确定。
具体实现时，上述终端设备可以将所有有待发送数据的LCG的每个LCG的待发送数据量与第一预设阈值进行比较，确定所有有待发送数据的LCG中是否存在待发送数据量大于或等于第一预设阈值的第一LCG。若所有有待发送数据的LCG中的第一LCG小于截断的BSR可以指示的待发送数据量的LCG的个数，则上述终端设备还可以根据上述第一种情况所示的方式，按照各个LCG的优先级，再从剩余的所有有待发送数据的LCG中选择一些LCG，以使得第一LCG和从剩余的所有有待发送数据的LCG中选择一些LCG的总数，为截断的BSR可以指示的待发送数据量的LCG的个数。若所有有待发送数据的LCG的第一LCG的个数等于截断的BSR可以指示的待发送数据量的LCG的个数，则终端设备可以将这些第一LCG作为能够使用截断的BSR指示待发送数据量的LCG。若所有有待发送数据的LCG的第一LCG的个数大于截断的BSR可以指示的待发送数据量的LCG的个数，则终端设备可以按照各第一LCG的优先级，从多个第一LCG中选择出可以使用截断的BSR指示待发送数据量的第一LCG。
可选的，上述第一LCG还可以为：所有有待发送数据的LCG中，LCH上的待发送数据量大于或等于第二预设阈值的LCG。其中，上述第二预设阈值具体可以根据系统配置确定。
具体实现时，上述终端设备可以将所有有待发送数据的LCG的每个LCG上有待发送数据的LCH的待发送数据量与第二预设阈值进行比较，确定所有有待发送数据的LCG中是否存在待发送数据量大于或等于第一预设阈值的第一LCG。若所有有待发送数据的LCG中的第一LCG小于截断的BSR可以指示的待发送数据量的LCG的个数，则上述终端设备还可以根据上述 第一种情况所示的方式，按照各个LCG的优先级，再从剩余的所有有待发送数据的LCG中选择一些LCG，以使得第一LCG和从剩余的所有有待发送数据的LCG中选择一些LCG的总数，为截断的BSR可以指示的待发送数据量的LCG的个数。若所有有待发送数据的LCG的第一LCG的个数等于截断的BSR可以指示的待发送数据量的LCG的个数，则终端设备可以将这些第一LCG作为能够使用截断的BSR指示待发送数据量的LCG。若所有有待发送数据的LCG的第一LCG的个数大于截断的BSR可以指示的待发送数据量的LCG的个数，则终端设备可以按照各第一LCG的优先级，从多个第一LCG中选择出可以使用截断的BSR指示待发送数据量的第一LCG。
可选的，上述第一LCG还可以为：待发送数据的时延剩余时间小于或等于第三预设阙值的LCG。其中，这里所说的时延剩余时间可以为待发送数据的所属的业务的时延剩余时间。需要说明的是，上述第三预设阈值具体可以根据系统配置确定。
具体实现时，上述终端设备可以为每个LCG的每个LCH的每个数据设置一个丢弃定时器(discard timer)，其中，该丢弃定时器的最大值为该LCH对应的时延。当LCH接收到待发送数据时，针对每一个数据，可以启动该丢弃定时器，用于确定是否丢弃该待发送数据。因此，当上述LCG的待发送数据的时延剩余时间为该LCG的所有有待发送数据的LCH中时延剩余时间最少的数据的时延剩余时间时，上述终端设备可以根据所有有待发送数据的LCG中的每个LCG上的每个LCH中每个数据的丢弃定时器的超时剩余时间(时延剩余时间)，确定所有有待发送数据的LCG中的每个LCG的待发送数据的时延剩余时间。
或者，上述终端设备可以为每个LCG的每个LCH设置一个discard timer，其中，该丢弃定时器的最大值为该LCH对应的时延。当LCH接收到待发送数据时，可以启动该丢弃定时器，用于确定是否丢弃该待发送数据。因此，当上述LCG的待发送数据的时延剩余时间为该LCG的所有有待发送数据的LCH的时延剩余时间的最小值时，上述终端设备可以根据所有有待发送数据的LCG中的每个LCG上的每个LCH的丢弃定时器的超时剩余时间(时延剩余时间)，确定所有有待发送数据的LCG中的每个LCG的待发送数据的时延剩余时间。
或者，当上述LCG的待发送数据的时延剩余时间为该LCG的所有有待发送数据的LCH的时延剩余时间的最小值时，上述终端设备可以为每个LCG设置一个discard timer，其中，该丢弃定时器的最大值为该LCG的时延要求最高的LCH对应的时延。当LCG中的任一LCH接收到待发送数据时，可以启动该丢弃定时器。因此，在该实现方式下，上述终端设备可以根据所有有待发送数据的LCG中的每个LCG的丢弃定时器的超时剩余时间(时延剩余时间)，确定所有有待发送数据的LCG中的每个LCG的待发送数据的时延剩余时间。
在获取到每个LCG的待发送数据的时延剩余时间后，终端设备可以将每个LCG的待发送数据的时延剩余时间与第三预设阙值进行比较，确定是否存在待发送数据的时延剩余时间小于或等于第三预设阙值的第一LCG。若所有有待发送数据的LCG中的第一LCG小于截断的BSR可以指示的待发送数据量的LCG的个数，则上述终端设备还可以根据上述第一种情况所示的方式，按照各个LCG的优先级，再从剩余的所有有待发送数据的LCG中选择一些LCG，以使得第一LCG和从剩余的所有有待发送数据的LCG中选择一些LCG的总数，为截断的BSR可以指示的待发送数据量的LCG的个数。若所有有待发送数据的 LCG的第一LCG的个数等于截断的BSR可以指示的待发送数据量的LCG的个数，则终端设备可以将这些第一LCG作为能够使用截断的BSR指示待发送数据量的LCG。若所有有待发送数据的LCG的第一LCG的个数大于截断的BSR可以指示的待发送数据量的LCG的个数，则终端设备可以按照各第一LCG的优先级，从多个第一LCG中选择出可以使用截断的BSR指示待发送数据量的第一LCG。
可选的，上述第一LCG还可以为：所有有待发送数据的LCG中，包括新的待发送数据的LCG。这里所说的新的待发送数据为在终端设备发送上一BSR(该BSR可以为图4所示的BSR，还可以为上述截断的BSR，也可以为其他任意BSR，例如由新数据到达触发的BSR)之后，其上的LCH新缓存的待发送数据。
具体实现时，上述终端设备可以根据所有有待发送数据的LCG的每个LCG上有待发送数据的LCH的待发送数据，确定所有有待发送数据的LCG中是否存在有新的待发送数据的第一LCG。若所有有待发送数据的LCG中的第一LCG小于截断的BSR可以指示的待发送数据量的LCG的个数，则上述终端设备还可以根据上述第一种情况所示的方式，按照各个LCG的优先级，再从剩余的所有有待发送数据的LCG中选择一些LCG，以使得第一LCG和从剩余的所有有待发送数据的LCG中选择一些LCG的总数，为截断的BSR可以指示的待发送数据量的LCG的个数。若所有有待发送数据的LCG的第一LCG的个数等于截断的BSR可以指示的待发送数据量的LCG的个数，则终端设备可以将这些第一LCG作为能够使用截断的BSR指示待发送数据量的LCG。若所有有待发送数据的LCG的第一LCG的个数大于截断的BSR可以指示的待发送数据量的LCG的个数，则终端设备可以按照各第一LCG的优先级，从多个第一LCG中选择出可以使用截断的BSR指示待发送数据量的第一LCG。
可选的，上述第一LCG还可以为：所有有待发送数据的LCG中，包括新的待发送数据、且新的待发送数据量大于或等于第四预设阈值的LCG。或者，上述第一LCG还可以为：所有有待发送数据的LCG中，包括新的待发送数据、且新的待发送数据占比大于或等于第五预设阈值的LCG。其中，新的待发送数据的占比为新的待发送数据量与第一LCG的待发送数据量之比，或，新的待发送数据量与第一LCG的待发送数据量除新的待发送数据量之外的数据量之比等，其实现原理与技术效果与上述方式类似，对此不再赘述。其中，上述第四预设阈值、第五预设阈值具体可以根据系统配置确定。
第三种情况：上述一部分LCG中的每个LCG的待发送数据的时延剩余时间，均小于所有有待发送数据的LCG中除一部分LCG之外的其他LCG的待发送数据的时延剩余时间。关于待发送数据的时延剩余时间可以参见前述实施例的描述，在此不再赘述。
具体实现时，上述终端设备可以按照所有有待发送数据的LCG的每个LCG的丢弃定时器的超时剩余时间(时延剩余时间)，对所有有待发送数据的LCG进行排序，按照从小到大的顺序，从所有有待发送数据的LCG中选择一部分LCG，并通过截断的BSR指示该一部分LCG的待发送数据量。
第四种情况：上述一部分LCG，还可以为按照LCG编号从小到大的顺序，以及，所确定的该一部分LCG的个数，从所有有待发送数据的LCG中选择出来的。其中，关于第四种情况的实现方式的描述可以参见前述实施例的描述，对此不再赘述。
如前述实施例所说，上述截断的BSR为终端设备在MAC PDU的空闲比特数不足以填充上述图4所示的BSR时，通过MAC PDU发送给网络设备的。因此，上述截断的BSR 通常位于MAC PDU的尾部。在该场景下，网络设备在接收到该MAC PDU后，在对MAC PDU中位于截断的BSR之前的MAC CE或MAC SDU完成解码后，可以根据MAC PDU中剩余的比特数，自动判断出截断的BSR的长度。这样，网络设备可以基于截断的BSR的长度，完成对截断的BSR的解码。
可选的，在一些实施例中，若截断的BSR并非位于MAC PDU的尾部。也就是说，在MAC PDU中，在截断的BSR所在的比特位置之后，还存在MAC SDU或MAC CE。则在场景下，上述截断的BSR还可以用于指示截断的BSR的长度，从而使得网络设备可以基于截断的BSR的长度，完成对截断的BSR的解码等，确保了网络设备对截断的BSR的解码效率。
需要说明的是，虽然前述实施例均以终端设备在MAC PDU的空闲比特数不足以填充上述图4所示的BSR的场景，对上述截断的BSR进行了说明和介绍。但是本领域技术人员可以理解的是，上述截断的BSR包括但并不限于上述应用场景。在终端设备需要向网络设备发送用于指示LCG上的待发送数据量的指示信息的任意场景，均可以采用本申请实施例所提供的数据传输方法，对此不再赘述。
本申请实施例提供的数据传输方法，上述终端设备可以在MAC PDU的空闲比特数不足以填充能够指示所有有待发送数据的LCG，以及，所有有待发送数据的LCG的待发送数据量的BSR时，可以生成一个截断的BSR，以通过该截断的BSR指示终端设备上一部分有待发送数据的LCG、以及、这些LCG的待发送数据量。通过这种方式，使得终端设备可以在MAC PDU的空闲比特数不足时，还可以通过截断的BSR向网络设备指示终端设备上一部分有待发送数据的LCG，以及，这些LCG的待发送数据量，以使得网络设备可以及时的、且准确的获知终端设备上一部分有待发送数据的LCG的待发送数据量，以便于网络设备更加准确和合理的为终端设备分配上行传输资源，提高了分配上行传输资源的效率。
图8为本申请实施例提供的一种终端设备的结构示意图。如图8所示，上述终端设备可以包括：处理模块11和发送模块12。其中，
处理模块11，用于生成第一指示信息，所述第一指示信息用于指示有待发送数据的逻辑信道组、以及、所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量；
发送模块12，用于发送所述第一指示信息。
可选的，当上述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级时，上述一部分逻辑信道组中的每个逻辑信道组的优先级，可以均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。
可选的，当上述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级、且有待发送数据的逻辑信道组中存在至少一个第一逻辑信道组时，若至少一个第一逻辑信道组的数量小于所述一部分逻辑信道组的数量，则所述一部分逻辑信道组包括所述至少一个第一逻辑信道组，且所述一部分逻辑信道组中除所述至少一个第一逻辑信道组之外的其他逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。若所述至少一个第一逻辑信道组的数量等于所述一部分逻辑信道组的数量，则将所述至少一个第一逻辑信道组作为所述一部分逻辑信道组。若所述至少一个第一逻辑信道组的数量大于所述一部分逻辑信道组的数量， 则将所述至少一个第一逻辑信道组中的一部分第一逻辑信道组作为所述一部分逻辑信道组。其中，所述一部分逻辑信道组中的每个第一逻辑信道组的优先级，均高于所述至少一个第一逻辑信道组中除所述一部分第一逻辑信道组之外的其他第一逻辑信道组的优先级。示例性的，上述第一逻辑信道组对应的空口格式可以与发送所述第一指示信息时所使用的空口格式相同。
可选的，上述第一指示信息还用于指示所述第一指示信息的长度。
继续参照图8，在一些实施例中，上述终端设备还可以包括接收模块13。其中，接收模块13，用于接收第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
本申请实施例提供的终端设备，可以执行上述图5所示的方法实施例中终端设备的动作，其实现原理和技术效果类似，在此不再赘述。
图9为本申请实施例提供的一种网络设备的结构示意图。如图9所示，上述网络设备可以包括：接收模块21和处理模块22。其中，
接收模块21，用于接收第一指示信息；
处理模块22，用于根据所述第一指示信息，确定有待发送数据的逻辑信道组，以及，所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量。
可选的，当上述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级时，上述一部分逻辑信道组中的每个逻辑信道组的优先级，可以均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。
可选的，当上述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级、且有待发送数据的逻辑信道组中存在至少一个第一逻辑信道组时，若至少一个第一逻辑信道组的数量小于所述一部分逻辑信道组的数量，则所述一部分逻辑信道组包括所述至少一个第一逻辑信道组，且所述一部分逻辑信道组中除所述至少一个第一逻辑信道组之外的其他逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。若所述至少一个第一逻辑信道组的数量等于所述一部分逻辑信道组的数量，则将所述至少一个第一逻辑信道组作为所述一部分逻辑信道组。若所述至少一个第一逻辑信道组的数量大于所述一部分逻辑信道组的数量，则将所述至少一个第一逻辑信道组中的一部分第一逻辑信道组作为所述一部分逻辑信道组。其中，所述一部分逻辑信道组中的每个第一逻辑信道组的优先级，均高于所述至少一个第一逻辑信道组中除所述一部分第一逻辑信道组之外的其他第一逻辑信道组的优先级。示例性的，上述第一逻辑信道组对应的空口格式可以与发送所述第一指示信息时所使用的空口格式相同。
可选的，上述第一指示信息还用于指示所述第一指示信息的长度。
继续参照图9，在一些实施例中，上述网络设备还可以包括发送模块23。其中，发送模块23，用于发送第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
本申请实施例提供的网络设备，可以执行上述图5所示的方法实施例中网络设备的动作，其实现原理和技术效果类似，在此不再赘述。
需要说明的是，应理解以上发送模块实际实现时可以为发送器，接收模块实际实现时 可以为接收器，而处理模块可以以软件通过处理元件调用的形式实现；也可以以硬件的形式实现。例如，处理模块可以为单独设立的处理元件，也可以集成在上述设备的某一个芯片中实现，此外，也可以以程序代码的形式存储于上述设备的存储器中，由上述设备的某一个处理元件调用并执行以上处理模块的功能。此外这些模块全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如，以上这些模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，简称CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，简称SOC)的形式实现。
图10为本申请实施例提供的另一种终端设备的结构示意图。如图10所示，该终端设备至少包括处理器504和收发器508。该终端设备还可以包括存储器519，其存储计算机执行指令；
处理器504，用于生成第一指示信息，所述第一指示信息用于指示有待发送数据的逻辑信道组、以及、所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量；收发器508，用于发送所述处理器504生成的所述第一指示信息。
可选的，上述收发器508，还用于接收第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
上述处理器504可以用于执行前面方法实施例中描述的由终端设备内部实现的动作，而收发器508可以用于执行前面方法实施例中描述的终端设备向网络设备接收或者发送的动作。具体请见前面方法实施例中的描述，此处不再赘述。
上述处理器504和存储器519可以集成为一个处理装置，处理器504用于执行存储器519中存储的程序代码来实现上述功能。具体实现时，该存储器519也可以集成在处理器504中。
上述终端设备还可以包括电源512，用于给终端设备中的各种器件或电路提供电源；上述终端设备可以包括天线510，用于将收发器508输出的上行数据或上行控制信令通过无线信号发送出去。
除此之外，为了使得终端设备的功能更加完善，该终端设备还可以包括输入单元514，显示单元516，音频电路518，摄像头520和传感器522等中的一个或多个，所述音频电路还可以包括扬声器5182，麦克风5184等。
图11为本申请实施例提供的另一种网络设备的结构示意图。如图11所示，该网络设备600至少包括处理器604和收发器608。
所述网络设备的收发器608，用于接收第一指示信息；处理器604，用于根据所述第一指示信息，确定有待发送数据的逻辑信道组，以及，所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量。
可选的，所述网络设备的收发器608还用于发送第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
上述处理器604可以用于执行前面方法实施例中描述的由网络设备内部实现的动作，而收发器608可以用于执行前面方法实施例中描述的网络设备向终端设备接收或者发送的动作。具体请见前面方法实施例中的描述，此处不再赘述。
上述处理器604和存储器603可以合成一个处理装置，处理器604用于执行存储器603中存储的程序代码来实现上述功能。具体实现时，该存储器603也可以集成在处理器604中。
上述网络设备还可以包括天线610，用于将收发器608输出的下行数据或下行控制信令通过无线信号发送出去。
需要说明的是：所述终端设备的处理器504和网络设备的处理器604可以是中央处理器(central processing unit，简称CPU)，网络处理器(network processor，简称NP)或者CPU和NP的组合。处理器还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit，简称ASIC)，可编程逻辑器件(programmable logic device，简称PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device，简称CPLD)，现场可编程逻辑门阵列(field-programmable gate array，简称FPGA)，通用阵列逻辑(generic array logic，简称GAL)或其任意组合。
终端设备的存储器519和网络设备的存储器603可以包括易失性存储器(volatile memory)，例如随机存取内存(random access memory，简称RAM)；还可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)，硬盘(hard disk drive，简称HDD)或固态硬盘(solid-state drive，简称SSD)；存储器还可以包括上述种类的存储器的组合。
在本申请实施例中，终端能够与网络设备之间进行无线通信。本申请装置实施例的网络设备可对应于本申请方法实施例中的网络设备，终端设备可对应于本申请方法实施例中的终端设备。并且，网络设备和终端设备的各个模块的上述和其它操作和/或功能分别为了实现前述方法实施例的相应流程，为了简洁，本申请方法实施例的描述可以适用于该装置实施例，在此不再赘述。
图12为本申请实施例提供的一种数据通信系统的结构示意图。如图12所示，上述数据通信系统可以包括：终端设备51和网络设备52。其中，上述终端设备51可以为前述实施例所说的任一终端设备，上述网络设备52可以为前述实施例所说的任一网络设备，其实现原理和技术效果类似，在此不再赘述。
本申请实施例提供的终端设备、网络设备和数据通信系统，终端设备可以在MAC PDU的空闲比特数不足以填充能够指示所有有待发送数据的LCG，以及，所有有待发送数据的LCG的待发送数据量的BSR时，可以生成一个长度短于该BSR长度的第一指示信息，以通过该第一指示信息指示终端设备上有待发送数据的LCG、以及、有待发送数据的LCG的一部分LCG的待发送数据量。通过这种方式，使得终端设备可以在MAC PDU的空闲比特数不足时，还可以通过第一指示信息向网络设备指示终端设备上还有哪些有待发送数据的LCG，以使得网络设备可以及时的、且准确的获知除了指示有待发送数据量的LCG之外，终端设备上还有哪些LCG有待发送数据，以便于网络设备更加准确和合理的 为终端设备分配上行传输资源，提高了分配上行传输资源的效率。
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。
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。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
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，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请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(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
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。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计算机程序指令时，全部或部分地产生按照本发明实施例的流程或功能。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。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，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。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。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。

Claims (39)

  1. 一种数据传输方法，其特征在于，包括：
    终端设备生成第一指示信息，所述第一指示信息用于指示有待发送数据的逻辑信道组、以及、所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量；
    所述终端设备发送所述第一指示信息。
  2. 根据权利要求1所述的方法，其特征在于，所述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级。
  3. 根据权利要求2所述的方法，其特征在于，所述一部分逻辑信道组中的每个逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。
  4. 根据权利要求2所述的方法，其特征在于，所述有待发送数据的逻辑信道组中存在至少一个第一逻辑信道组；
    在所述至少一个第一逻辑信道组的数量小于所述一部分逻辑信道组的数量时，所述一部分逻辑信道组包括所述至少一个第一逻辑信道组，且所述一部分逻辑信道组中除所述至少一个第一逻辑信道组之外的其他逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级；
    在所述至少一个第一逻辑信道组的数量等于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组作为所述一部分逻辑信道组；
    在所述至少一个第一逻辑信道组的数量大于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组中的一部分第一逻辑信道组作为所述一部分逻辑信道组，所述一部分逻辑信道组中的每个第一逻辑信道组的优先级，均高于所述至少一个第一逻辑信道组中除所述一部分第一逻辑信道组之外的其他第一逻辑信道组的优先级。
  5. 根据权利要求4所述的方法，其特征在于，所述第一逻辑信道组对应的空口格式与发送所述第一指示信息时所使用的空口格式相同。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述第一指示信息还用于指示所述第一指示信息的长度。
  7. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
  8. 一种数据传输方法，其特征在于，包括：
    网络设备接收第一指示信息；
    所述网络设备根据所述第一指示信息，确定有待发送数据的逻辑信道组，以及，所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量。
  9. 根据权利要求8所述的方法，其特征在于，所述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级。
  10. 根据权利要求9所述的方法，其特征在于，所述一部分逻辑信道组中的每个逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。
  11. 根据权利要求9所述的方法，其特征在于，所述有待发送数据的逻辑信道组中存在至少一个第一逻辑信道组；
    在所述至少一个第一逻辑信道组的数量小于所述一部分逻辑信道组的数量时，所述一部分逻辑信道组包括所述至少一个第一逻辑信道组，且所述一部分逻辑信道组中除所述至少一个第一逻辑信道组之外的其他逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级；
    在所述至少一个第一逻辑信道组的数量等于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组作为所述一部分逻辑信道组；
    在所述至少一个第一逻辑信道组的数量大于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组中的一部分第一逻辑信道组作为所述一部分逻辑信道组，所述一部分逻辑信道组中的每个第一逻辑信道组的优先级，均高于所述至少一个第一逻辑信道组中除所述一部分第一逻辑信道组之外的其他第一逻辑信道组的优先级。
  12. 根据权利要求11所述的方法，其特征在于，所述第一逻辑信道组对应的空口格式与发送所述第一指示信息时所使用的空口格式相同。
  13. 根据权利要求8-12任一项所述的方法，其特征在于，所述第一指示信息，还用于指示所述第一指示信息的长度。
  14. 根据权利要求9所述的方法，其特征在于，所述方法还包括：
    所述网络设备发送第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
  15. 一种终端设备，其特征在于，包括：
    处理器，用于生成第一指示信息，所述第一指示信息用于指示有待发送数据的逻辑信道组、以及、所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量；
    收发器，用于发送所述第一指示信息。
  16. 根据权利要求15所述的终端设备，其特征在于，所述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级。
  17. 根据权利要求16所述的终端设备，其特征在于，所述一部分逻辑信道组中的每个逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。
  18. 根据权利要求16所述的终端设备，其特征在于，所述有待发送数据的逻辑信道组中存在至少一个第一逻辑信道组；
    在所述至少一个第一逻辑信道组的数量小于所述一部分逻辑信道组的数量时，所述一部分逻辑信道组包括所述至少一个第一逻辑信道组，且所述一部分逻辑信道组中除所述至少一个第一逻辑信道组之外的其他逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级；
    在所述至少一个第一逻辑信道组的数量等于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组作为所述一部分逻辑信道组；
    在所述至少一个第一逻辑信道组的数量大于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组中的一部分第一逻辑信道组作为所述一部分逻辑信道组，所述一部分逻辑信道组中的每个第一逻辑信道组的优先级，均高于所述至少一个第一逻辑信道组 中除所述一部分第一逻辑信道组之外的其他第一逻辑信道组的优先级。
  19. 根据权利要求18所述的终端设备，其特征在于，所述第一逻辑信道组对应的空口格式与发送所述第一指示信息时所使用的空口格式相同。
  20. 根据权利要求15-19任一项所述的终端设备，其特征在于，所述第一指示信息还用于指示所述第一指示信息的长度。
  21. 根据权利要求16所述的终端设备，其特征在于，所述终端设备还包括：
    收发器，用于接收第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
  22. 一种网络设备，其特征在于，包括：
    收发器，用于接收第一指示信息；
    处理器，用于根据所述第一指示信息，确定有待发送数据的逻辑信道组，以及，所述有待发送数据的逻辑信道组的一部分逻辑信道组的待发送数据量。
  23. 根据权利要求22所述的网络设备，其特征在于，所述有待发送数据的逻辑信道组中的每个逻辑信道组对应一个优先级。
  24. 根据权利要求23所述的网络设备，其特征在于，所述一部分逻辑信道组中的每个逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级。
  25. 根据权利要求23所述的网络设备，其特征在于，所述有待发送数据的逻辑信道组中存在至少一个第一逻辑信道组；
    在所述至少一个第一逻辑信道组的数量小于所述一部分逻辑信道组的数量时，所述一部分逻辑信道组包括所述至少一个第一逻辑信道组，且所述一部分逻辑信道组中除所述至少一个第一逻辑信道组之外的其他逻辑信道组的优先级，均高于所述有待发送数据的逻辑信道组中除所述一部分逻辑信道组之外的其他逻辑信道组的优先级；
    在所述至少一个第一逻辑信道组的数量等于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组作为所述一部分逻辑信道组；
    在所述至少一个第一逻辑信道组的数量大于所述一部分逻辑信道组的数量时，将所述至少一个第一逻辑信道组中的一部分第一逻辑信道组作为所述一部分逻辑信道组，所述一部分逻辑信道组中的每个第一逻辑信道组的优先级，均高于所述至少一个第一逻辑信道组中除所述一部分第一逻辑信道组之外的其他第一逻辑信道组的优先级。
  26. 根据权利要求25所述的网络设备，其特征在于，所述第一逻辑信道组对应的空口格式与发送所述第一指示信息时所使用的空口格式相同。
  27. 根据权利要求22-26任一项所述的网络设备，其特征在于，所述第一指示信息，还用于指示所述第一指示信息的长度。
  28. 根据权利要求23所述的网络设备，其特征在于，所述网络设备还包括：
    收发器，用于发送第二指示信息，所述第二指示信息用于指示所述终端设备的至少一个逻辑信道组对应的优先级。
  29. 一种终端设备，其特征在于，包括存储器和处理器，以及存储在所述存储器上可供所述处理器执行的计算机程序；
    所述处理器执行所述计算机程序实现如权利要求1-7任一项所述数据传输方法的步骤。
  30. 一种网络设备，其特征在于，包括存储器和处理器，以及存储在所述存储器上可供所述处理器执行的计算机程序；
    所述处理器执行所述计算机程序实现如权利要求8-14任一项所述数据传输方法的步骤。
  31. 一种数据通信系统，其特征在于，包括：如权利要求15-21任一项所述的终端设备，以及，如权利要求22-28任一项所述的网络设备。
  32. 一种终端设备，其特征在于，用于执行权利要求1-7任意一项所述的方法。
  33. 一种计算机可读存储介质，其特征在于，包括指令，当所述存储介质在计算机上运行时，使得所述计算机执行如权利要求1-7中任一所述的方法。
  34. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得所述计算机执行如权利要求1-7中任一所述的方法。
  35. 一种芯片，其特征在于，包括存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从所述存储器中调用并运行所述计算机程序，使得所述处理器执行如权利要求1-7中任一所述的方法。
  36. 一种终端设备，其特征在于，用于执行权利要求8-14任意一项所述的方法。
  37. 一种计算机可读存储介质，其特征在于，包括指令，当所述存储介质在计算机上运行时，使得所述计算机执行如权利要求8-14中任一所述的方法。
  38. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得所述计算机执行如权利要求8-14中任一所述的方法。
  39. 一种芯片，其特征在于，包括存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从所述存储器中调用并运行所述计算机程序，使得所述处理器执行如权利要求8-14中任一所述的方法。
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