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WO2019028866A1 - 数据传输方法及相关产品 - Google Patents

数据传输方法及相关产品 Download PDF

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Publication number
WO2019028866A1
WO2019028866A1 PCT/CN2017/097183 CN2017097183W WO2019028866A1 WO 2019028866 A1 WO2019028866 A1 WO 2019028866A1 CN 2017097183 W CN2017097183 W CN 2017097183W WO 2019028866 A1 WO2019028866 A1 WO 2019028866A1
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WO
WIPO (PCT)
Prior art keywords
mac
domain
sub
header
pdu
Prior art date
Application number
PCT/CN2017/097183
Other languages
English (en)
French (fr)
Inventor
刘建华
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP17921391.3A priority Critical patent/EP3614727B1/en
Priority to PCT/CN2017/097183 priority patent/WO2019028866A1/zh
Priority to CN201780090731.1A priority patent/CN110622553A/zh
Publication of WO2019028866A1 publication Critical patent/WO2019028866A1/zh
Priority to US16/714,997 priority patent/US11116037B2/en

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    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a data transmission method and related products.
  • the Layer 2 (L2) protocol stack defined in the 3rd Generation Partnership Project (3GPP) protocol includes a packet data convergence protocol (PDCP) and a radio link control (RLC). Protocol and medium access control (MAC) protocols have three logical levels.
  • the PDCP layer performs functions such as data transmission, encryption, integrity protection, and header compression on the user plane and the control plane;
  • the RLC layer performs functions such as data packet matching;
  • the MAC layer performs data scheduling and between the logical channel and the transport channel. Mapping and other functions.
  • the processing flow of the entire L2 downlink protocol stack is: the PDCP layer data plus the PDCP header is formed into a PDCP protocol data unit (PDU) and sent to the RLC layer.
  • PDU PDCP protocol data unit
  • the received data is added to the RLC.
  • the hair is sent to the MAC layer, and the MAC layer multiplexes one or more MAC service data units (SDUs) to form a MAC PDU and sends it to the UE (User Equipment).
  • SDUs MAC service data units
  • Each MAC SDU corresponds to a MAC subheader.
  • one MAC PDU is composed of one MAC header, none or one or more MAC SDUs, none or one or more MAC control elements, and possibly padding Padding data.
  • Padding data is supplementary data.
  • a MAC header is composed of one or more MAC subheaders, and each MAC subheader is a MAC SDU or a MAC Control Element (MAC CE) or a subhead corresponding to Padding. Both the size of the MAC header and the size of the MAC SDU are variable.
  • Embodiments of the present application provide a data transmission method and related products, in order to improve the flexibility and efficiency of processing data at the receiving end.
  • an embodiment of the present application provides a data transmission method, including:
  • the receiving end receives a data packet from the transmitting end, where the data packet includes a medium access control layer MAC protocol data unit PDU, the MAC PDU includes a plurality of MAC subsubPDUs, and each MAC subPDU includes a MAC subheader sub-header;
  • the data packet includes a medium access control layer MAC protocol data unit PDU
  • the MAC PDU includes a plurality of MAC subsubPDUs
  • each MAC subPDU includes a MAC subheader sub-header
  • the MAC sub-header includes a first information field, where the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU.
  • an embodiment of the present application provides a data transmission method, including:
  • the sender sends a data packet, where the data packet includes a medium access control layer MAC protocol data unit PDU, the MAC PDU includes a plurality of MAC subsubPDUs, and each MAC subPDU includes a MAC subheader sub-header;
  • an embodiment of the present application provides a receiving device, where the receiving device has a function of implementing behavior of a receiving device in the foregoing method design.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the receiving device includes a processor configured to support the receiving device to perform a corresponding function in the above method.
  • the receiving device may further include a transceiver for supporting communication between the receiving device and the network device.
  • the receiving device may further include a memory for coupling with the processor, which stores program instructions and data necessary for the receiving device.
  • an embodiment of the present application provides a sending device, where the sending device has a function of implementing a behavior of a sending device in the foregoing method design.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the transmitting device includes a processor configured to support the transmitting device to perform the corresponding function in the above method. Further, the transmitting device may further include a transceiver for supporting communication between the transmitting device and the terminal. Further, the transmitting device may further include a memory for coupling with the processor, which stores program instructions and data necessary for the transmitting device.
  • an embodiment of the present application provides a terminal, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory, and And configured to be executed by the processor, the program comprising instructions for performing the steps of any of the methods of the first aspect of the embodiments of the present application.
  • an embodiment of the present application provides a network device, including a processor, a memory, a transceiver, and one or more programs, where the one or more programs are stored in the memory, and are configured by The processor executes, the program comprising instructions for performing the steps in any of the methods of the second aspect of the embodiments of the present application.
  • the embodiment of the present application provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute as implemented in the present application.
  • the embodiment of the present application provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute as implemented in the present application.
  • the embodiment of the present application provides a computer program product, where the computer program product includes a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause the computer to execute Apply some or all of the steps described in any of the methods of the first aspect of the embodiments.
  • the computer program product can be a software installation package.
  • embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to execute Apply some or all of the steps described in any of the methods of the second aspect of the embodiments.
  • the computer program product can be a software installation package.
  • the receiving end receives the data packet from the sending end, because the data packet includes a MAC PDU, and the MAC PDU includes multiple MAC subsubPDUs, and each MAC sub PDU includes a MAC subheader sub-header;
  • the MAC sub-header includes a first information field, where the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU.
  • the receiving end can flexibly process the received MAC PDU according to the specific information indicated by the first information field. Specifically, the receiving end indicates the current MAC sub PDU in the first information field.
  • the receiving end does not need to repeatedly perform the format recognition operation for the next adjacent MAC subPDU, thereby reducing the processing amount as a whole, which is beneficial to improving the flexibility of processing data at the receiving end. And efficiency.
  • FIG. 1 is a network architecture diagram of a possible communication system provided by an embodiment of the present application.
  • FIG. 2A is a schematic flowchart of a data transmission method according to an embodiment of the present application.
  • 2B is a schematic structural diagram of a MAC PDU according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of another data transmission method provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 7 is a block diagram of a functional unit of a terminal according to an embodiment of the present application.
  • FIG. 8 is a structural block diagram of a functional unit of a network device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another terminal according to an embodiment of the present application.
  • the fifth generation of mobile communication technology (5th-Generation, 5G) New Radio (NR) is a newly proposed topic in the 3rd Generation Partnership Project (3GPP) organization.
  • 3GPP 3rd Generation Partnership Project
  • 5G NR New Radio
  • the main application scenarios of 5G are: enhanced mobile broadband broadband (eMBB), low-reliability and low Latency Communications (Ultra-reliable and Low Latency Communications).
  • URLLC massive machine type of communication
  • eMBB still aims at users to obtain multimedia content, services and data, and its demand is growing rapidly.
  • eMBB may be deployed in different scenarios, such as indoors, urban areas, and rural areas, the difference in capabilities and needs is relatively large, so it cannot be generalized and must be analyzed in detail in conjunction with specific deployment scenarios.
  • Typical applications for URLLC include: industrial automation, power automation, telemedicine operations (surgery), and traffic safety.
  • Typical features of mMTC include: high connection density, small data volume, delay-insensitive service, low cost and long life of the module.
  • FIG. 1 is a possible network architecture of an example communication system according to an embodiment of the present application.
  • the example communication system can be, for example, a 5GNR system and other such communication systems.
  • the example communication system specifically includes a network device and a terminal. When the terminal accesses the mobile communication network provided by the network device, the terminal and the network device can be connected by using a wireless link, and the communication connection mode can be a single connection mode or a dual connection mode.
  • the network device when the communication connection mode is a single connection mode, the network device may be an LTE base station or an NR base station (also referred to as a gNB base station), and when the communication mode is the dual connection mode (specifically, carrier aggregation (Carrier Aggregation, When the CA) is implemented by a technology, or a plurality of network devices are implemented, and the terminal is connected to multiple network devices, the multiple network devices may be the primary base station MCG and the secondary base station SCG, and the base stations perform data backhaul through the backhaul link backhaul.
  • carrier aggregation Carrier Aggregation
  • the primary base station may be an LTE base station
  • the secondary base station may be an LTE base station
  • the primary base station may be an NR base station
  • the secondary base station may be an LTE base station
  • the primary base station may be an NR base station
  • the secondary base station may be an NR base station.
  • the terminals involved in the embodiments of the present application may include various handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to the wireless modem, and various forms of user equipment (User Equipment). , UE), mobile station (MS), terminal device, and the like. For convenience of description, the devices mentioned above are collectively referred to as terminals.
  • FIG. 2A is a data transmission method according to an embodiment of the present application, which is applied to the foregoing example communication system, and the method includes:
  • the receiving end receives a data packet from the transmitting end, where the data packet includes media access Controlling a MAC protocol data unit PDU, the MAC PDU comprising a plurality of MAC subsubPDUs, each MAC subPDU comprising a MAC subheader sub-header;
  • the MAC sub-header includes a first information field, where the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU.
  • the sender and the receiver are devices with a MAC layer entity and a physical layer entity.
  • the MAC layer entity is used to assemble the MAC PDU and is delivered to the physical layer entity, and then the physical layer entity is transmitted to the receiving end at the air interface, and the physical end of the receiving end.
  • the MAC PDU is delivered to the MAC layer entity of the receiving end, and then the MAC layer entity of the receiving end resolves the MAC header, that is, the information field is read.
  • the method further includes: when the first information field indicates that the format of the current MAC subPDU is the same as the format of the next adjacent MAC sub PDU, according to the current The format of the MAC subPDU reads the information field of the next adjacent MAC subPDU, and the information field includes at least one of the following: a first information field, an extended bit R domain, a logical channel identifier LCID field, a bit length format indication The F field, the length indicating the L domain, and the second information domain, and the like.
  • the receiving end receives the data packet from the sending end, because the data packet includes a MAC PDU, and the MAC PDU includes multiple MAC subsubPDUs, and each MAC subPDU includes a MAC subheader sub-header;
  • the MAC sub-header includes a first information field, where the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU. It can be seen that the receiving end can flexibly process the received MAC PDU according to the specific information indicated by the first information field. Specifically, the first information field indicates the LCID field and the L domain of the current MAC subPDU and the next adjacent MAC address.
  • a MAC sub-header of the plurality of MAC subPDUs that does not include the MAC sub-PDU of the L-domain includes a second information domain and a logical channel identifier LCID domain, where the second information domain is used to indicate the receiving Whether the end reads the LCID field.
  • the current MAC sub PDU and the next MAC sub PDU are from the same logical channel, and the transmitting end can flexibly instruct the receiving end to repeatedly read the LCID field of the next MAC sub PDU by using the second information field.
  • the receiving end can determine whether the LCID field needs to be read according to the second information domain, and avoid unnecessary processing caused by repeated reading when the information domain is not needed to be read, which is beneficial to reducing data processing overhead of the receiving end. Improve the data processing efficiency of the receiving end.
  • the MAC PDU in the data packet includes 6 MAC subPDUs, among which the MAC subSDU1 includes MAC sub-header1 and MAC SDU1, and the MAC subSDU2 includes MAC sub-header2 and MAC.
  • MAC subSDU3 includes MAC sub-header3 and MAC SDU3
  • MAC subSDU4 includes MAC sub-header4 and MAC SDU4
  • MAC subSDU5 includes MAC sub-header5 and MAC SDU5
  • MAC subSDU6 includes MAC sub-header6 and MAC CE or Padding
  • MAC The format of the SDU1 is different from that of the MAC SDU2, and the MAC sub-header1 of the MAC SDU1 includes the L domain, and the MAC SDU2, the MAC SDU3, and the MAC SDU4 have the same format, and the corresponding MAC sub-header does not include the L domain, and the MAC SDU5
  • the MAC sub-header 5 includes an L domain; then a possible structure of the MAC PDU is as shown in the figure.
  • E1 represents a first information domain
  • E2 represents a second information domain
  • the second information field is located in the second bit of the MAC sub-header.
  • the first information field is located in the first of the MAC sub-headers Bit bit.
  • the L field of the MAC subsubPDU including the L domain in the plurality of MAC subsubPDUs has a bit length of 7 or 15 or 8 or 16.
  • a format of a MAC sub-header including a MAC sub-PDU of an L-domain in the multiple MAC subPDUs is the first information domain/extended bit R domain/logical channel identifier LCID domain/bit length format indication F domain/length indicates the L domain;
  • the format of the MAC sub-header of the MAC sub-PDU that does not include the L-domain MAC sub-PDU is the first information domain/second information domain/the LCID domain.
  • the method further includes: the receiving end identifying, in a case where the first information field indicates that a format of a current MAC sub PDU is different from a format of a next adjacent MAC sub PDU, Whether the next adjacent MAC subPDU includes an L field to determine the format of the MAC sub-header, wherein the format of the MAC sub-header including the L domain is the first information domain/extended bit R domain/logical channel identifier LCID domain
  • the /bit length format indicates the F field/length indicating the L field; the format of the MAC sub-header not including the L field is the first information field/second information field/the LCID field.
  • the receiving end since the format of the MAC sub-header is divided into two categories by including the L domain, the receiving end only needs to recognize whether the current MAC sub-header includes the L domain, and the MAC sub-header can be accurately determined.
  • the format type helps to improve the accuracy of the receiver to identify the MAC sub-header.
  • FIG. 3 is a data transmission method according to an embodiment of the present application, which is applied to the foregoing example communication system, and the method includes:
  • the sender sends a data packet, where the data packet includes a medium access control layer MAC protocol data unit PDU, the MAC PDU includes a plurality of MAC subsubPDUs, and each MAC subPDU includes a MAC subheader sub-header;
  • the data packet includes a medium access control layer MAC protocol data unit PDU
  • the MAC PDU includes a plurality of MAC subsubPDUs
  • each MAC subPDU includes a MAC subheader sub-header
  • the MAC sub-header includes a first information field, where the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU.
  • the sending end sends a data packet, because the data packet includes a MAC PDU, and the MAC PDU includes multiple MAC subsub PDUs, and each MAC sub PDU includes A MAC sub-header; in addition, the MAC sub-header includes a first information field, where the first information field is used to indicate whether the format of the current MAC sub-PDU is the same as the format of the next adjacent MAC sub-PDU. It can be seen that the receiving end can flexibly process the received MAC PDU according to the specific information indicated by the first information field. Specifically, the first information field indicates the LCID field and the L domain of the current MAC subPDU and the next adjacent MAC address.
  • the MAC sub-header of the MAC sub-PDU that does not include the L-domain includes a second information domain and a logical channel identifier LCID field, where the second information field is used to indicate whether the receiver is Read the LCID field.
  • the second information field is located in the second bit of the MAC sub-header.
  • the first information field is located in the first bit of the MAC sub-header.
  • the L field of the MAC subsubPDU including the L domain in the plurality of MAC subsubPDUs has a bit length of 7 or 15 or 8 or 16.
  • a format of a MAC sub-header including a MAC sub-PDU of an L-domain in the multiple MAC subPDUs is the first information domain/extended bit R domain/logical channel identifier LCID domain/bit length format indication F domain/length indicates the L domain;
  • the format of the MAC sub-header of the MAC sub-PDU that does not include the L-domain MAC sub-PDU is the first information domain/second information domain/the LCID domain.
  • FIG. 4 is a data transmission method according to an embodiment of the present application.
  • the method is applied to the foregoing example communication system, and the method includes:
  • the sender sends a data packet, where the data packet includes a medium access control layer MAC protocol data unit PDU, the MAC PDU includes a plurality of MAC subsubPDUs, and each MAC subPDU includes a MAC subheader sub-header;
  • the data packet includes a medium access control layer MAC protocol data unit PDU
  • the MAC PDU includes a plurality of MAC subsubPDUs
  • each MAC subPDU includes a MAC subheader sub-header
  • the MAC sub-header includes a first information field, where the first information field is used to indicate when The format of the previous MAC subPDU is the same as the format of the next adjacent MAC subPDU.
  • the receiving end receives a data packet from the transmitting end, the data packet includes a medium access control layer MAC protocol data unit PDU, the MAC PDU includes a plurality of MAC subsubPDUs, and each MAC subPDU includes a MAC subhead sub -header;
  • the MAC sub-header includes a first information field, where the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU.
  • each MAC subPDU includes one MAC subhead sub-header; further, the MAC sub-header includes the first The information field, the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU. It can be seen that the receiving end can flexibly process the received MAC PDU according to the specific information indicated by the first information field. Specifically, the first information field indicates the LCID field and the L domain of the current MAC subPDU and the next adjacent MAC address.
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal includes a processor, a memory, a communication interface, and one or more programs.
  • the one or more programs are stored in the memory and configured to be executed by the processor, the program comprising instructions for performing the following steps;
  • the MAC PDU includes a plurality of MAC subsubPDUs, and each MAC subPDU includes a MAC subheader sub-header;
  • the MAC sub-header includes a first information field, where the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU.
  • the receiving end receives the data packet from the transmitting end, because the data packet includes a MAC PDU, and the MAC PDU includes multiple MAC subsubPDUs, and each MAC subPDU includes a MAC subheader sub-header;
  • the MAC sub-header includes the first information
  • the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU. It can be seen that the receiving end can flexibly process the received MAC PDU according to the specific information indicated by the first information field. Specifically, the first information field indicates the LCID field and the L domain of the current MAC subPDU and the next adjacent MAC address.
  • a MAC sub-header of the plurality of MAC subPDUs that does not include the MAC sub-PDU of the L-domain includes a second information domain and a logical channel identifier LCID domain, where the second information domain is used to indicate the receiving Whether the end reads the LCID field.
  • the second information field is located in the second bit of the MAC sub-header.
  • the first information field is located in the first bit of the MAC sub-header.
  • the L field of the MAC subsubPDU including the L domain in the plurality of MAC subsubPDUs has a bit length of 7 or 15 or 8 or 16.
  • a format of a MAC sub-header including a MAC sub-PDU of an L-domain in the multiple MAC subPDUs is the first information domain/extended bit R domain/logical channel identifier LCID domain/bit length format indication F domain/length indicates the L domain;
  • the format of the MAC sub-header of the MAC sub-PDU that does not include the L-domain MAC sub-PDU is the first information domain/second information domain/the LCID domain.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the terminal includes a processor, a memory, a transceiver, and one or more programs.
  • the one or more programs are stored in the memory and configured to be executed by the processor, the program comprising instructions for performing the following steps;
  • the MAC PDU includes a plurality of MAC subsubPDUs, and each MAC subPDU includes a MAC subheader sub-header;
  • the MAC sub-header includes a first information field, where the first information field is used to indicate The format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU.
  • the transmitting end sends a data packet, because the data packet includes a MAC PDU, and the MAC PDU includes multiple MAC subsubPDUs, and each MAC subPDU includes a MAC subheader sub-header;
  • the MAC sub-header includes a first information field, where the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU.
  • the receiving end can flexibly process the received MAC PDU according to the specific information indicated by the first information field. Specifically, the first information field indicates the LCID field and the L domain of the current MAC subPDU and the next adjacent MAC address.
  • the MAC sub-header of the MAC sub-PDU that does not include the L-domain includes a second information domain and a logical channel identifier LCID field, where the second information field is used to indicate whether the receiver is Read the LCID field.
  • the second information field is located in the second bit of the MAC sub-header.
  • the first information field is located in the first bit of the MAC sub-header.
  • the L field of the MAC subsubPDU including the L domain in the plurality of MAC subsubPDUs has a bit length of 7 or 15 or 8 or 16.
  • a format of a MAC sub-header including a MAC sub-PDU of an L-domain in the multiple MAC subPDUs is the first information domain/extended bit R domain/logical channel identifier LCID domain/bit length format indication F domain/length indicates the L domain;
  • the format of the MAC sub-header of the MAC sub-PDU that does not include the L-domain MAC sub-PDU is the first information domain/second information domain/the LCID domain.
  • the terminal and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions.
  • the terminal and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions.
  • the combination The elements and algorithm steps of the various examples described in the embodiments disclosed herein can be implemented in a combination of hardware or hardware and computer software. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for each particular application to implement the described functionality, but such implementation should not be considered to be beyond the scope of the application.
  • the embodiments of the present application may perform the division of functional units on the terminal and the network device according to the foregoing method.
  • each functional unit may be divided according to each function, or two or more functions may be integrated into one processing unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logical function division. In actual implementation, there may be another division manner.
  • FIG. 7 shows a block diagram of one possible functional unit configuration of the receiving device involved in the above embodiment.
  • the receiving device 700 includes a processing unit 702 and a communication unit 703.
  • the processing unit 702 is configured to perform control management on the actions of the receiving device.
  • the processing unit 702 is configured to support the receiving device to perform step 201 in FIG. 2A, step 402 in FIG. 4, and/or other techniques for the techniques described herein. process.
  • the communication unit 703 is for supporting communication between the receiving device and other devices, such as communication with the network device shown in FIG.
  • the receiving device may further include a storage unit 701 for storing program codes and data of the receiving device.
  • the processing unit 702 can be a processor or a controller, and can be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific). Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication unit 703 may be a transceiver, a transceiver circuit, or the like, and the storage unit 701 may be a memory.
  • the processing unit 702 is configured to receive data from the sending end by using the communication unit 703. a packet, the data packet includes a medium access control layer MAC protocol data unit PDU, the MAC PDU includes a plurality of MAC subsubPDUs, and each MAC subPDU includes a MAC subheader sub-header;
  • the MAC sub-header includes a first information field, where the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU.
  • a MAC sub-header of the plurality of MAC subPDUs that does not include the MAC sub-PDU of the L-domain includes a second information domain and a logical channel identifier LCID domain, where the second information domain is used to indicate the receiving Whether the end reads the LCID field.
  • the second information field is located in the second bit of the MAC sub-header.
  • the first information field is located in the first bit of the MAC sub-header.
  • the L field of the MAC subsubPDU including the L domain in the plurality of MAC subsubPDUs has a bit length of 7 or 15 or 8 or 16.
  • a format of a MAC sub-header including a MAC sub-PDU of an L-domain in the multiple MAC subPDUs is the first information domain/extended bit R domain/logical channel identifier LCID domain/bit length format indication F domain/length indicates the L domain;
  • the format of the MAC sub-header of the MAC sub-PDU that does not include the L-domain MAC sub-PDU is the first information domain/second information domain/the LCID domain.
  • the processing unit 702 is a processor
  • the communication unit 703 is a communication interface
  • the storage unit 701 is a memory
  • the receiving device according to the embodiment of the present application may be the receiving end shown in FIG. 5.
  • FIG. 8 shows a block diagram of a possible functional unit configuration of the transmitting device involved in the above embodiment.
  • the transmitting device 800 includes a processing unit 802 and a communication unit 803.
  • the processing unit 802 is configured to control and manage the actions of the transmitting device.
  • the processing unit 802 is configured to support the transmitting device to perform step 301 in FIG. 3, 401 in FIG. 4, and/or other processes for the techniques described herein.
  • the communication unit 803 is for supporting communication between the transmitting device and other devices, such as communication with the terminal shown in FIG.
  • the transmitting device may further include a storage unit 801 for storing program codes and data of the transmitting device.
  • the processing unit 802 can be a processor or a controller
  • the communication unit 803 can be a transceiver, a transceiver circuit, a radio frequency chip, etc.
  • the storage unit 801 can be a memory.
  • the processing unit 802 is configured to send a data packet by using the communication unit 803, where the data packet includes a medium access control layer MAC protocol data unit PDU, where the MAC PDU includes multiple MAC subsubPDUs, and each MAC subPDU Including a MAC subheader sub-header;
  • the data packet includes a medium access control layer MAC protocol data unit PDU, where the MAC PDU includes multiple MAC subsubPDUs, and each MAC subPDU Including a MAC subheader sub-header;
  • the MAC sub-header includes a first information field, where the first information field is used to indicate whether the format of the current MAC subPDU is the same as the format of the next adjacent MAC subPDU.
  • the MAC sub-header of the MAC sub-PDU that does not include the L-domain includes a second information domain and a logical channel identifier LCID field, where the second information field is used to indicate whether the receiver is Read the LCID field.
  • the second information field is located in the second bit of the MAC sub-header.
  • the first information field is located in the first bit of the MAC sub-header.
  • the L field of the MAC subsubPDU including the L domain in the plurality of MAC subsubPDUs has a bit length of 7 or 15 or 8 or 16.
  • a format of a MAC sub-header including a MAC sub-PDU of an L-domain in the multiple MAC subPDUs is the first information domain/extended bit R domain/logical channel identifier LCID domain/bit length format indication F domain/length indicates the L domain;
  • the format of the MAC sub-header of the MAC sub-PDU that does not include the L-domain MAC sub-PDU is the first information domain/second information domain/the LCID domain.
  • the transmitting device When the processing unit 802 is a processor, the communication unit 803 is a communication interface, and the storage unit 801 is a memory, the transmitting device according to the embodiment of the present application may be the transmitting end shown in FIG. 6.
  • the embodiment of the present application further provides another terminal.
  • the terminal can be a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a car computer, etc.
  • PDA Personal Digital Assistant
  • POS Point of Sales
  • car computer etc.
  • terminal devices take the terminal as a mobile phone as an example:
  • FIG. 9 is a block diagram showing a partial structure of a mobile phone related to a terminal provided by an embodiment of the present application.
  • the mobile phone includes: a radio frequency (RF) circuit 910, a memory 920, an input unit 930, a display unit 940, a sensor 950, an audio circuit 960, a wireless fidelity (WiFi) module 970, and a processor 980.
  • RF radio frequency
  • the structure of the handset shown in FIG. 9 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different components may be arranged.
  • the RF circuit 910 can be used for receiving and transmitting information.
  • RF circuit 910 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like.
  • LNA Low Noise Amplifier
  • RF circuitry 910 can also communicate with the network and other devices via wireless communication.
  • the above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), E-mail, Short Messaging Service (SMS), and the like.
  • GSM Global System of Mobile communication
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • E-mail Short Messaging Service
  • the memory 920 can be used to store software programs and modules, and the processor 980 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 920.
  • the memory 920 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function, and the like; the storage data area may store data created according to usage of the mobile phone, and the like.
  • memory 920 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • the input unit 930 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the handset.
  • the input unit 930 can include a fingerprint identification module 931 and other input devices 932.
  • the fingerprint identification module 931 can collect fingerprint data of the user.
  • the input unit 930 may also include other input devices 932.
  • other input devices 932 may include, but are not limited to, one or more of a touch screen, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • the display unit 940 can be used to display information input by the user or information provided to the user as well as various menus of the mobile phone.
  • the display unit 940 can include a display screen 941.
  • the display screen 941 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the fingerprint recognition module 931 and the display screen 941 function as two separate components to implement the input and input functions of the mobile phone, in some embodiments, the fingerprint recognition module 931 and the display screen 941 can be Integrated to achieve the input and playback functions of the phone.
  • the handset may also include at least one type of sensor 950, such as a light sensor, motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display screen 941 according to the brightness of the ambient light, and the proximity sensor may turn off the display screen 941 and/or when the mobile phone moves to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity.
  • the mobile phone can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for the mobile phone can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer Narration.
  • the gesture of the mobile phone such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration
  • vibration recognition related functions such as pedometer, tapping
  • the mobile phone can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer Narration.
  • An audio circuit 960, a speaker 961, and a microphone 962 can provide an audio interface between the user and the handset.
  • the audio circuit 960 can transmit the converted electrical data of the received audio data to the speaker 961 for conversion to the sound signal by the speaker 961; on the other hand, the microphone 962 converts the collected sound signal into an electrical signal by the audio circuit 960. After receiving, it is converted into audio data, and then processed by the audio data playback processor 980, sent to the other mobile phone via the RF circuit 910, or played back to the memory 920 for further processing.
  • WiFi is a short-range wireless transmission technology
  • the mobile phone can help users to send and receive emails, browse web pages, and access streaming media through the WiFi module 970, which provides users with wireless broadband Internet access.
  • FIG. 9 shows the WiFi module 970, it can be understood that it does not belong to the essential configuration of the mobile phone, and can be omitted as needed within the scope of not changing the essence of the invention.
  • the processor 980 is the control center of the handset, which connects various portions of the entire handset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 920, and invoking data stored in the memory 920, executing The phone's various functions and processing data, so that the overall monitoring of the phone.
  • the processor 980 may include one or more processing units; preferably, the processor 980 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like.
  • the modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 980.
  • the handset also includes a power source 990 (such as a battery) that supplies power to the various components.
  • a power source 990 such as a battery
  • the power source can be logically coupled to the processor 980 through a power management system to manage functions such as charging, discharging, and power management through the power management system.
  • the mobile phone may further include a camera, a Bluetooth module, and the like, and details are not described herein again.
  • the flow on the terminal side in each step method can be implemented based on the structure of the mobile phone.
  • each unit function can be implemented based on the structure of the mobile phone.
  • the embodiment of the present application further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute a terminal as in the above method embodiment Some or all of the steps described.
  • the embodiment of the present application further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute a network in the method embodiment as described above Some or all of the steps described by the device.
  • the embodiment of the present application further provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform the method embodiment as described above Some or all of the steps described in the terminal.
  • the computer program product can be a software installation package.
  • the embodiment of the present application further provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform a network as in the above method Some or all of the steps described by the device.
  • the computer program product can be a software installation package.
  • the steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented by a processor executing software instructions.
  • the software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable Programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.
  • the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (DVD)), or a semiconductor medium (for example, a solid state disk (SSD)). )Wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a digital video disc (DVD)
  • DVD digital video disc
  • SSD solid state disk

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Abstract

本申请实施例公开了数据传输方法及相关产品，包括：接收端接收来自发送端的数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。本申请实施例通过在现有MAC sub-header格式中引入第一信息域，该第一信息域可用于动态指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同，有利于提高接收端处理数据的灵活性和效率。

Description

数据传输方法及相关产品 技术领域
本申请涉及通信技术领域，尤其涉及一种数据传输方法及相关产品。
背景技术
第三代合作伙伴计划(The3rd generation partnership project，3GPP)协议中定义的层2(L2)协议栈包括报文汇聚协议(packet data convergence protocol，PDCP)、无线链路控制(radio link control，RLC)协议和媒体接入控制(medium access control，MAC)协议三个逻辑层次。其中，PDCP层完成用户面和控制面的数据传输、加密、完整性保护和头压缩等功能；RLC层完成数据包的大小匹配等功能；MAC层完成数据调度以及逻辑信道与传输信道之间的映射等功能。整个L2下行协议栈处理流程是：PDCP层数据加上PDCP的头组成PDCP协议数据单元(Protocol Data Unit，PDU)发送给RLC层，RLC层完成一定的功能后，将接收到的数据加上RLC头发送给MAC层，MAC层复用一个或多个MAC业务数据单元(Service Data Unit，SDU)组成MAC PDU发送给UE(User Equipment，用户设备)。每个MAC SDU对应一个MAC子头。其中，一个MAC PDU是由一个MAC头、无或者一个或者多个MAC SDU、无或者一个或者多个MAC控制元素、可能的填充Padding数据组成的。Padding数据就是补充的数据，当RLC层数据量小于实际调度的资源时，MAC需要在MAC PDU最后面打补丁，即补充Padding数据。一个MAC头是由一个或多个MAC子头组成，每一个MAC子头是一个MAC SDU或者MAC控制单元(MAC Control Element，MAC CE)或者Padding对应的子头。MAC头的大小和MAC SDU的大小都是可变的。
发明内容
本申请的实施例提供一种数据传输方法及相关产品，以期有利于提高接收端处理数据的灵活性和效率。
第一方面，本申请实施例提供一种数据传输方法，包括：
接收端接收来自发送端的数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
第二方面，本申请实施例提供一种数据传输方法，包括：
发送端发送数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
第三方面，本申请实施例提供一种接收设备，该接收设备具有实现上述方法设计中接收设备的行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。在一个可能的设计中，接收设备包括处理器，所述处理器被配置为支持接收设备执行上述方法中相应的功能。进一步的，接收设备还可以包括收发器，所述收发器用于支持接收设备与网络设备之间的通信。进一步的，接收设备还可以包括存储器，所述存储器用于与处理器耦合，其保存接收设备必要的程序指令和数据。
第四方面，本申请实施例提供一种发送设备，该发送设备具有实现上述方法设计中发送设备的行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。在一个可能的设计中，发送设备包括处理器，所述处理器被配置为支持发送设备执行上述方法中相应的功能。进一步的，发送设备还可以包括收发器，所述收发器用于支持发送设备与终端之间的通信。进一步的，发送设备还可以包括存储器，所述存储器用于与处理器耦合，其保存发送设备必要的程序指令和数据。
第五方面，本申请实施例提供一种终端，包括处理器、存储器、通信接口以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并 且被配置由所述处理器执行，所述程序包括用于执行本申请实施例第一方面任一方法中的步骤的指令。
第六方面，本申请实施例提供一种网络设备，包括处理器、存储器、收发器以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行本申请实施例第二方面任一方法中的步骤的指令。
第七方面，本申请实施例提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如本申请实施例第一方面任一方法中所描述的部分或全部步骤。
第八方面，本申请实施例提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如本申请实施例第二方面任一方法中所描述的部分或全部步骤。
第九方面，本申请实施例提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如本申请实施例第一方面任一方法中所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
第十方面，本申请实施例提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如本申请实施例第二方面任一方法中所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
可以看出，本申请实施例，接收端接收来自发送端的数据包，由于该数据包包括MACPDU，且该MAC PDU包括多个MAC子subPDU，每个MAC subPDU 包括一个MAC子头sub-header；此外，该MAC sub-header包括第一信息域，第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。接收端能够根据该第一信息域所指示的具体信息灵活处理接收到的MAC PDU，具体的，接收端在第一信息域指示当前的MAC subPDU的 格式与下一个相邻的MAC subPDU的格式相同情况下，接收端无需重复执行针对该下一个相邻的MAC subPDU的格式识别操作，整体上降低处理量，有利于提高接收端处理数据的灵活性和效率。
附图说明
下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍.
图1是本申请实施例提供的一种可能的通信系统的网络架构图；
图2A是本申请实施例提供的一种数据传输方法的流程示意图；
图2B是本申请实施例提供的一种MAC PDU的结构示意图；
图3是本申请实施例提供的另一种数据传输方法的流程示意图；
图4是本申请实施例提供的另一种数据传输方法的流程示意图；
图5是本申请实施例提供的一种终端的结构示意图；
图6是本申请实施例提供的一种网络设备的结构示意图；
图7是本申请实施例提供的一种终端的功能单元组成框图；
图8是本申请实施例提供的一种网络设备的功能单元组成框图；
图9是本申请实施例提供的另一种终端的结构示意图。
具体实施方式
首先对申请实施例涉及到的一些概念和常规操作方式做简要说明。
第五代移动通信技术(5th-Generation,5G)新空口(New Radio，NR)是在第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)组织中新近提出的一个课题。随着新一代5G技术的讨论逐渐深入，一方面，由于通信系统是后项兼容的，所以后来研发的新技术倾向于兼容之前已经标准化的技术；而另一方面，由于4G LTE系统已经存在了大量的现有设计，为了达到兼容，要牺牲掉5G的很多灵活度，从而降低性能。所以，目前在3GPP组织中两个方向并行研究，其中，不考虑后向兼容的技术讨论组，被称为5G NR。
5G的主要应用场景为：增强移动超宽带(enhance Mobile Broadband，eMBB)、低时延高可靠通信(Ultra-reliable and Low Latency Communications， URLLC)、大规模机器类通信(massive machine type of communication，mMTC)。其中，eMBB仍然以用户获得多媒体内容、服务和数据为目标，其需求增长十分迅速。另一方面，由于eMBB可能部署在不同的场景中，便如室内，市区，农村等，其能力和需求的差别也比较大，所以不能一概而论，必须结合具体的部署场景详细分析。URLLC的典型应用包括：工业自动化，电力自动化，远程医疗操作(手术)，交通安全保障等。mMTC的典型特点包括：高连接密度，小数据量，时延不敏感业务，模块的低成本和长使用寿命等。
下面将结合附图对本申请实施例中的技术方案进行描述。
请参阅图1，图1是本申请实施例提供的一种示例通信系统的可能的网络架构。该示例通信系统例如可以是5GNR系统以及其他此类通信系统。该示例通信系统具体包括网络设备和终端，终端接入网络设备提供的移动通信网络时，终端与网络设备之间可以通过无线链路通信连接，该通信连接方式可以是单连接方式或者双连接方式或者多连接方式，当通信连接方式为单连接方式时，网络设备可以是LTE基站或者NR基站(又称为gNB基站)，当通信方式为双连接方式时(具体可以通过载波聚合(Carrier Aggregation，CA)技术实现，或者多个网络设备实现)，且终端连接多个网络设备时，该多个网络设备可以是主基站MCG和辅基站SCG，基站之间通过回程链路backhaul进行数据回传，主基站可以是LTE基站，辅基站可以是LTE基站，或者，主基站可以是NR基站，辅基站可以是LTE基站，或者，主基站可以是NR基站，辅基站可以是NR基站。
本申请实施例中，名词“网络”和“系统”经常交替使用，本领域技术人员可以理解其含义。本申请实施例所涉及到的终端可以包括各种具有无限通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备，以及各种形式的用户设备(User Equipment，UE)，移动台(Mobile Station，MS)，终端设备(terminal device)等等。为方便描述，上面提到的设备统称为终端。
请参阅图2A，图2A是本申请实施例提供的一种数据传输方法，应用于上述示例通信系统，该方法包括：
在201部分，接收端接收来自发送端的数据包，所述数据包包括媒体接入 控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
其中，发送端和接收端为具有MAC层实体和物理层实体的设备，MAC层实体用于组装MAC PDU，并递交到物理层实体，再有物理层实体在空口传输到接收端，接收端的物理层实体处理完成后，将MAC PDU递交到接收端的MAC层实体，再有接收端的MAC层实体解MAC包头，即读取信息域。
在本可能的示例中，所述方法还包括：所述接收端在所述第一信息域指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式相同的情况下，根据所述当前的MAC subPDU的格式读取所述下一个相邻的MAC subPDU的信息域，所述信息域包括以下至少一种：第一信息域、扩展比特R域、逻辑信道标识LCID域、位长格式指示F域、长度指示L域以及第二信息域等。
可以看出，本申请实施例中，接收端接收来自发送端的数据包，由于该数据包包括MACPDU，且该MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；此外，该MAC sub-header包括第一信息域，第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。可见，接收端能够根据该第一信息域所指示的具体信息灵活处理接收到的MAC PDU，具体的，在第一信息域指示当前的MAC subPDU的LCID域和L域与下一个相邻的MAC subPDU的LCID域和L域相同时，仅需要通过第一信息域来灵活指示即可，无需开销额外信令或者字段来指示此情况，有利于提高接收端处理数据的灵活性和效率。
在一个可能的示例中，所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header包括第二信息域和逻辑信道标识LCID域，所述第二信息域用于指示所述接收端是否读取所述LCID域。
其中，在当前的MAC subPDU与下一个MAC subPDU来自相同的逻辑信道是，发送端能够通过该第二信息域灵活指示接收端不用重复读取该下一个MAC subPDU的LCID域。
可见，本示例中，接收端能够根据第二信息域确定是否需要读取LCID域，避免在不需要读取该信息域时重复读取造成额外的处理量，有利于减少接收端的数据处理开销，提高接收端的数据处理效率。
举例来说，如图2B所示，假设数据包中的MAC PDU包括6个MAC subPDU，该6个MAC subPDU中，MAC subSDU1包括MAC sub-header1和MAC SDU1，MAC subSDU2包括MAC sub-header2和MAC SDU2，MAC subSDU3包括MAC sub-header3和MAC SDU3，MAC subSDU4包括MAC sub-header4和MAC SDU4，MAC subSDU5包括MAC sub-header5和MAC SDU5，MAC subSDU6包括MAC sub-header6和MAC CE or Padding，且MAC SDU1的格式与MAC SDU2的格式不同，且MAC SDU1的MAC sub-header1包括L域，MAC SDU2、MAC SDU3、MAC SDU4的格式相同，且对应的MAC sub-header均不包括L域，MAC SDU5的MAC sub-header5包括L域；则MAC PDU的一种可能的结构如图所示，
MAC sub-header1的格式为E1/R/LCID/F/L，且E1＝1，指示MAC SDU1的格式与MAC SDU2的格式不同；
MAC sub-header2的格式为E1/E2/LCID，且E1＝0，指示MAC SDU2和MAC SDU3的格式相同，E2＝0，指示接收端不读取对应的LCID；
MAC sub-header3的格式为E1/E2/LCID，且E1＝0，指示MAC SDU3和MAC SDU4的格式相同，E2＝0，指示接收端不读取对应的LCID；
MAC sub-header4的格式为E1/E2/LCID，且E1＝1，指示MAC SDU4和MAC SDU5的格式不相同，E2＝0，指示接收端不读取对应的LCID；
MAC sub-header5的格式为E1/R/LCID/F/L，且E1＝1，指示MAC SDU5和MAC SDU6的格式不相同；
MAC sub-header5的格式为E1/E2/LCID，且E1＝1，指示MAC SDU6和下一个MAC subPDU的格式不相同，E2＝1，指示接收端读取对应的LCID；
其中，E1代表第一信息域，E2代表第二信息域。
在一个可能的示例中，所述第二信息域位于所述MAC sub-header的第2个bit位。
在一个可能的示例中，所述第一信息域位于所述MAC sub-header的第1个 bit位。
在一个可能的示例中，所述多个MAC子subPDU中包括L域的MAC子subPDU的L域的位长为7或15或8或16。
在一个可能的示例中，所述多个MAC subPDU中包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/扩展比特R域/逻辑信道标识LCID域/位长格式指示F域/长度指示L域；
所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/第二信息域/所述LCID域。
在本可能的示例中，所述方法还包括：所述接收端在所述第一信息域指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式不相同的情况下，识别所述下一个相邻的MAC subPDU是否包括L域以确定所述MAC sub-header的格式，其中，包括L域的MAC sub-header的格式为第一信息域/扩展比特R域/逻辑信道标识LCID域/位长格式指示F域/长度指示L域；不包括L域的MAC sub-header的格式为所述第一信息域/第二信息域/所述LCID域。
可见，本示例中，由于MAC sub-header的格式由是否包括L域分为两类，故而接收端只需要识别出当前的MAC sub-header是否包括L域，即可准确确定MAC sub-header的格式类型，有利于提高接收端识别MAC sub-header的准确度。
请参阅图3，图3是本申请实施例提供的一种数据传输方法，应用于上述示例通信系统，该方法包括：
在301部分，发送端发送数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
可以看出，本申请实施例中，发送端发送数据包，由于该数据包包括MACPDU，且该MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括 一个MAC子头sub-header；此外，该MAC sub-header包括第一信息域，第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。可见，接收端能够根据该第一信息域所指示的具体信息灵活处理接收到的MAC PDU，具体的，在第一信息域指示当前的MAC subPDU的LCID域和L域与下一个相邻的MAC subPDU的LCID域和L域相同时，仅需要通过第一信息域来灵活指示即可，无需开销额外信令或者字段来指示此情况，有利于提高接收端处理数据的灵活性和效率。
在一个可能的示例中，所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header包括第二信息域和逻辑信道标识LCID域，所述第二信息域用于指示接收端是否读取所述LCID域。
在一个可能的示例中，所述第二信息域位于所述MAC sub-header的第2个bit位。
在一个可能的示例中，所述第一信息域位于所述MAC sub-header的第1个bit位。
在一个可能的示例中，所述多个MAC子subPDU中包括L域的MAC子subPDU的L域的位长为7或15或8或16。
在一个可能的示例中，所述多个MAC subPDU中包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/扩展比特R域/逻辑信道标识LCID域/位长格式指示F域/长度指示L域；
所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/第二信息域/所述LCID域。
与图2A和图3实施例一致的，请参阅图4，图4是本申请实施例提供的一种数据传输方法，应用于上述示例通信系统，该方法包括：
在401部分，发送端发送数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当 前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
在402部分，接收端接收来自发送端的数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
可以看出，本申请实施例中，由于数据包包括MACPDU，且该MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；此外，该MAC sub-header包括第一信息域，第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。可见，接收端能够根据该第一信息域所指示的具体信息灵活处理接收到的MAC PDU，具体的，在第一信息域指示当前的MAC subPDU的LCID域和L域与下一个相邻的MAC subPDU的LCID域和L域相同时，仅需要通过第一信息域来灵活指示即可，无需开销额外信令或者字段来指示此情况，有利于提高接收端处理数据的灵活性和效率。
与上述实施例一致的，请参阅图5，图5是本发明实施例提供的一种终端的结构示意图，如图所示，该终端包括处理器、存储器、通信接口以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行以下步骤的指令；
接收来自发送端的数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
可以看出，本发明实施例中，接收端接收来自发送端的数据包，由于该数据包包括MACPDU，且该MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；此外，该MAC sub-header包括第一信息 域，第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。可见，接收端能够根据该第一信息域所指示的具体信息灵活处理接收到的MAC PDU，具体的，在第一信息域指示当前的MAC subPDU的LCID域和L域与下一个相邻的MAC subPDU的LCID域和L域相同时，仅需要通过第一信息域来灵活指示即可，无需开销额外信令或者字段来指示此情况，有利于提高接收端处理数据的灵活性和效率。
在一个可能的示例中，所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header包括第二信息域和逻辑信道标识LCID域，所述第二信息域用于指示所述接收端是否读取所述LCID域。
在一个可能的示例中，所述第二信息域位于所述MAC sub-header的第2个bit位。
在一个可能的示例中，所述第一信息域位于所述MAC sub-header的第1个bit位。
在一个可能的示例中，所述多个MAC子subPDU中包括L域的MAC子subPDU的L域的位长为7或15或8或16。
在一个可能的示例中，所述多个MAC subPDU中包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/扩展比特R域/逻辑信道标识LCID域/位长格式指示F域/长度指示L域；
所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/第二信息域/所述LCID域。
与上述实施例一致的，请参阅图6，图6是本发明实施例提供的一种网络设备的结构示意图，如图所示，该终端包括处理器、存储器、收发器以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行以下步骤的指令；
发送数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示 当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
可以看出，本发明实施例中，发送端发送数据包，由于该数据包包括MACPDU，且该MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；此外，该MAC sub-header包括第一信息域，第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。可见，接收端能够根据该第一信息域所指示的具体信息灵活处理接收到的MAC PDU，具体的，在第一信息域指示当前的MAC subPDU的LCID域和L域与下一个相邻的MAC subPDU的LCID域和L域相同时，仅需要通过第一信息域来灵活指示即可，无需开销额外信令或者字段来指示此情况，有利于提高接收端处理数据的灵活性和效率。
在一个可能的示例中，所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header包括第二信息域和逻辑信道标识LCID域，所述第二信息域用于指示接收端是否读取所述LCID域。
在一个可能的示例中，所述第二信息域位于所述MAC sub-header的第2个bit位。
在一个可能的示例中，所述第一信息域位于所述MAC sub-header的第1个bit位。
在一个可能的示例中，所述多个MAC子subPDU中包括L域的MAC子subPDU的L域的位长为7或15或8或16。
在一个可能的示例中，所述多个MAC subPDU中包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/扩展比特R域/逻辑信道标识LCID域/位长格式指示F域/长度指示L域；
所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/第二信息域/所述LCID域。
上述主要从各个网元之间交互的角度对本申请实施例的方案进行了介绍。可以理解的是，终端和网络设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，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，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，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的范围。
本申请实施例可以根据上述方法示例对终端和网络设备进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件程序模块的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，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。
在采用集成的单元的情况下，图7示出了上述实施例中所涉及的接收设备的一种可能的功能单元组成框图。接收设备700包括：处理单元702和通信单元703。处理单元702用于对接收设备的动作进行控制管理，例如，处理单元702用于支持接收设备执行图2A中的步骤201，图4中的步骤402和/或用于本文所描述的技术的其它过程。通信单元703用于支持接收设备与其他设备的通信，例如与图5中示出的网络设备之间的通信。接收设备还可以包括存储单元701，用于存储接收设备的程序代码和数据。
其中，处理单元702可以是处理器或控制器，例如可以是中央处理器(Central Processing Unit，CPU)，通用处理器，数字信号处理器(Digital Signal Processor，DSP)，专用集成电路(Application-Specific Integrated Circuit，ASIC)，现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信单元703可以是收发器、收发电路等，存储单元701可以是存储器。
其中，所述处理单元702用于通过所述通信单元703接收来自发送端的数据 包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
在一个可能的示例中，所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header包括第二信息域和逻辑信道标识LCID域，所述第二信息域用于指示所述接收端是否读取所述LCID域。
在一个可能的示例中，所述第二信息域位于所述MAC sub-header的第2个bit位。
在一个可能的示例中，所述第一信息域位于所述MAC sub-header的第1个bit位。
在一个可能的示例中，所述多个MAC子subPDU中包括L域的MAC子subPDU的L域的位长为7或15或8或16。
在一个可能的示例中，所述多个MAC subPDU中包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/扩展比特R域/逻辑信道标识LCID域/位长格式指示F域/长度指示L域；
所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/第二信息域/所述LCID域。
当处理单元702为处理器，通信单元703为通信接口，存储单元701为存储器时，本申请实施例所涉及的接收设备可以为图5所示的接收端。
在采用集成的单元的情况下，图8示出了上述实施例中所涉及的发送设备的一种可能的功能单元组成框图。发送设备800包括：处理单元802和通信单元803。处理单元802用于对发送设备的动作进行控制管理，例如，处理单元802用于支持发送设备执行图3中的步骤301、图4中的401和/或用于本文所描述的技术的其它过程。通信单元803用于支持发送设备与其他设备的通信，例如与图4中示出的终端之间的通信。发送设备还可以包括存储单元801，用于存储发送设备的程序代码和数据。
其中，处理单元802可以是处理器或控制器，通信单元803可以是收发器、收发电路、射频芯片等，存储单元801可以是存储器。
其中，所述处理单元802用于通过所述通信单元803发送数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
在一个可能的示例中，所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header包括第二信息域和逻辑信道标识LCID域，所述第二信息域用于指示接收端是否读取所述LCID域。
在一个可能的示例中，所述第二信息域位于所述MAC sub-header的第2个bit位。
在一个可能的示例中，所述第一信息域位于所述MAC sub-header的第1个bit位。
在一个可能的示例中，所述多个MAC子subPDU中包括L域的MAC子subPDU的L域的位长为7或15或8或16。
在一个可能的示例中，所述多个MAC subPDU中包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/扩展比特R域/逻辑信道标识LCID域/位长格式指示F域/长度指示L域；
所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/第二信息域/所述LCID域。
当处理单元802为处理器，通信单元803为通信接口，存储单元801为存储器时，本申请实施例所涉及的发送设备可以为图6所示的发送端。
本申请实施例还提供了另一种终端，如图9所示，为了便于说明，仅示出了与本申请实施例相关的部分，具体技术细节未揭示的，请参照本申请实施例方法部分。该终端可以为包括手机、平板电脑、PDA(Personal Digital Assistant，个人数字助理)、POS(Point of Sales，销售终端)、车载电脑等任 意终端设备，以终端为手机为例：
图9示出的是与本申请实施例提供的终端相关的手机的部分结构的框图。参考图9，手机包括：射频(Radio Frequency，RF)电路910、存储器920、输入单元930、显示单元940、传感器950、音频电路960、无线保真(Wireless Fidelity，WiFi)模块970、处理器980、以及电源990等部件。本领域技术人员可以理解，图9中示出的手机结构并不构成对手机的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
下面结合图9对手机的各个构成部件进行具体的介绍：
RF电路910可用于信息的接收和发送。通常，RF电路910包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器(Low Noise Amplifier，LNA)、双工器等。此外，RF电路910还可以通过无线通信与网络和其他设备通信。上述无线通信可以使用任一通信标准或协议，包括但不限于全球移动通讯系统(Global System of Mobile communication，GSM)、通用分组无线服务(General Packet Radio Service，GPRS)、码分多址(Code Division Multiple Access，CDMA)、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)、长期演进(Long Term Evolution，LTE)、电子邮件、短消息服务(Short Messaging Service，SMS)等。
存储器920可用于存储软件程序以及模块，处理器980通过运行存储在存储器920的软件程序以及模块，从而执行手机的各种功能应用以及数据处理。存储器920可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序等；存储数据区可存储根据手机的使用所创建的数据等。此外，存储器920可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
输入单元930可用于接收输入的数字或字符信息，以及产生与手机的用户设置以及功能控制有关的键信号输入。具体地，输入单元930可包括指纹识别模组931以及其他输入设备932。指纹识别模组931，可采集用户在其上的指纹数据。除了指纹识别模组931，输入单元930还可以包括其他输入设备932。 具体地，其他输入设备932可以包括但不限于触控屏、物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆等中的一种或多种。
显示单元940可用于显示由用户输入的信息或提供给用户的信息以及手机的各种菜单。显示单元940可包括显示屏941，可选的，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示屏941。虽然在图9中，指纹识别模组931与显示屏941是作为两个独立的部件来实现手机的输入和输入功能，但是在某些实施例中，可以将指纹识别模组931与显示屏941集成而实现手机的输入和播放功能。
手机还可包括至少一种传感器950，比如光传感器、运动传感器以及其他传感器。具体地，光传感器可包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示屏941的亮度，接近传感器可在手机移动到耳边时，关闭显示屏941和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别手机姿态的应用(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；至于手机还可配置的陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器，在此不再赘述。
音频电路960、扬声器961，传声器962可提供用户与手机之间的音频接口。音频电路960可将接收到的音频数据转换后的电信号，传输到扬声器961，由扬声器961转换为声音信号播放；另一方面，传声器962将收集的声音信号转换为电信号，由音频电路960接收后转换为音频数据，再将音频数据播放处理器980处理后，经RF电路910以发送给比如另一手机，或者将音频数据播放至存储器920以便进一步处理。
WiFi属于短距离无线传输技术，手机通过WiFi模块970可以帮助用户收发电子邮件、浏览网页和访问流式媒体等，它为用户提供了无线的宽带互联网访问。虽然图9示出了WiFi模块970，但是可以理解的是，其并不属于手机的必须构成，完全可以根据需要在不改变发明的本质的范围内而省略。
处理器980是手机的控制中心，利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在存储器920内的软件程序和/或模块，以及调用存储在存储器920内的数据，执行手机的各种功能和处理数据，从而对手机进行整体监控。可选的，处理器980可包括一个或多个处理单元；优选的，处理器980可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器980中。
手机还包括给各个部件供电的电源990(比如电池)，优选的，电源可以通过电源管理系统与处理器980逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
尽管未示出，手机还可以包括摄像头、蓝牙模块等，在此不再赘述。
前述图2A至图4所示的实施例中，各步骤方法中终端侧的流程可以基于该手机的结构实现。
前述图4、图5所示的实施例中，各单元功能可以基于该手机的结构实现。
本申请实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中终端所描述的部分或全部步骤。
本申请实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中网络设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如上述方法实施例中终端所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
本申请实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如上述方法中网络设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
本申请实施例所描述的方法或者算法的步骤可以以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(Random Access Memory，RAM)、闪存、只读存储器(Read Only Memory，ROM)、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于接入网设备、目标网络设备或核心网设备中。当然，处理器和存储介质也可以作为分立组件存在于接入网设备、目标网络设备或核心网设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如，固态硬盘(Solid State Disk，SSD))等。
以上所述的具体实施方式，对本申请实施例的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请实施例的具体实施方式而已，并不用于限定本申请实施例的保护范围，凡在本申请实施例的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请实施例的保护范围之内。

Claims (18)

  1. 一种数据传输方法，其特征在于，包括：
    接收端接收来自发送端的数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
    其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
  2. 根据权利要求1所述的方法，其特征在于，所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header包括第二信息域和逻辑信道标识LCID域，所述第二信息域用于指示所述接收端是否读取所述LCID域。
  3. 根据权利要求2所述的方法，其特征在于，所述第二信息域位于所述MAC sub-header的第2个bit位。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述第一信息域位于所述MAC sub-header的第1个bit位。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述多个MAC子subPDU中包括L域的MAC子subPDU的L域的位长为7或15或8或16。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述多个MAC subPDU中包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/扩展比特R域/逻辑信道标识LCID域/位长格式指示F域/长度指示L域；
    所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/第二信息域/所述LCID域。
  7. 一种数据传输方法，其特征在于，包括：
    发送端发送数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
    其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
  8. 根据权利要求7所述的方法，其特征在于，所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header包括第二信息域和逻辑信道标识LCID域，所述第二信息域用于指示接收端是否读取所述LCID域。
  9. 根据权利要求8所述的方法，其特征在于，所述第二信息域位于所述MAC sub-header的第2个bit位。
  10. 根据权利要求7-9任一项所述的方法，其特征在于，所述第一信息域位于所述MAC sub-header的第1个bit位。
  11. 根据权利要求7-10任一项所述的方法，其特征在于，所述多个MAC子subPDU中包括L域的MAC子subPDU的L域的位长为7或15或8或16。
  12. 根据权利要求7-11任一项所述的方法，其特征在于，所述多个MAC subPDU中包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/扩展比特R域/逻辑信道标识LCID域/位长格式指示F域/长度指示L域；
    所述多个MAC subPDU中不包括L域的MAC subPDU的MAC sub-header的格式为所述第一信息域/第二信息域/所述LCID域。
  13. 一种接收设备，其特征在于，包括处理单元和通信单元，
    所述处理单元，用于通过所述通信单元传输数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
    其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
  14. 一种发送设备，其特征在于，包括处理单元和通信单元，
    所述处理单元，用于通过所述通信单元传输数据包，所述数据包包括媒体接入控制层MAC协议数据单元PDU，所述MAC PDU包括多个MAC子subPDU，每个MAC subPDU包括一个MAC子头sub-header；
    其中，所述MAC sub-header包括第一信息域，所述第一信息域用于指示当前的MAC subPDU的格式与下一个相邻的MAC subPDU的格式是否相同。
  15. 一种终端，其特征在于，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求1-6任一项所述的方法中的步骤的指令。
  16. 一种网络设备，其特征在于，包括处理器、存储器、收发器，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求7-12任一项所述的方法中的步骤的指令。
  17. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求1-6任一项所述的方法。
  18. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求7-12任一项所述的方法。
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