WO2019028876A1

WO2019028876A1 - Data transmission method and related product

Info

Publication number: WO2019028876A1
Application number: PCT/CN2017/097196
Authority: WO
Inventors: 刘建华
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-08-11
Filing date: 2017-08-11
Publication date: 2019-02-14
Also published as: CN109644373B; CN109644373A

Abstract

Disclosed in embodiments of the present application are a data transmission method and a related product. The method comprises: receiving a data packet from a sending end, the data packet comprising a Media Access Control (MAC) Protocol Data Unit (PDU), the MAC PDU comprising multiple MAC subPDUs, and each MAC subPDU comprising an MAC sub-header, wherein the MAC sub-header comprises a first information domain, and the first information domain is used for indicating whether the MAC sub-header comprises a length indication L domain. According to the embodiments of the present application, by introducing a first information domain in an existing MAC sub-header format, wherein the first information domain can be used for dynamically indicating whether a current MAC subPDU comprises an L domain, the flexibility and efficiency of a receiving end for processing data are improved.

Description

Data transmission method and related products

Technical field

The present application relates to the field of communications technologies, and in particular, to a data transmission method and related products.

Background technique

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. After the RLC layer performs a certain function, 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). Each MAC SDU corresponds to a MAC subheader. Wherein, 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. When the amount of data in the RLC layer is smaller than the actual scheduled resource, the MAC needs to be patched at the end of the MAC PDU, that is, the Padding data is supplemented. 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.

Summary of the invention

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.

In a first aspect, an embodiment of the present application provides a data transmission method, including:

The receiving end receives the 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 sub-header;

The MAC sub-header includes a first information field, where the first information field is used to indicate whether the MAC sub-header includes a length indication L field.

In a second aspect, 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 sub-header;

In a third aspect, 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. In one possible design, the receiving device includes a processor configured to support the receiving device to perform a corresponding function in the above method. Further, the receiving device may further include a transceiver for supporting communication between the receiving device and the network device. Further, the receiving device may further include a memory for coupling with the processor, which stores program instructions and data necessary for the receiving device.

In a fourth aspect, 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. In one possible design, 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.

In a fifth aspect, 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 configured by the The processor executes, the program comprising instructions for performing the steps in any of the methods of the first aspect of the embodiments of the present application.

In a sixth aspect, 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.

In a seventh aspect, 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. Some or all of the steps described in any of the methods of the first aspect.

In an eighth aspect, 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. Some or all of the steps described in any of the methods of the second aspect.

In a ninth aspect, 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.

In a tenth aspect, 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.

It can be seen that, in the embodiment of the present application, since the data packet includes a medium access control layer MAC protocol data unit PDU, the MAC PDU includes multiple MAC subsubPDUs, and each MAC subPDU includes one MAC sub-header; wherein, the MAC sub-header The first information field is included, and the first information field is used to indicate whether the MAC sub-header includes a length indication L field. It can be seen that the receiving end can according to the first letter The specific information indicated by the area is flexibly processed by the received MAC PDU. Specifically, if the receiving end indicates that the current MAC sub PDU does not include the L domain, the receiving end does not need to repeatedly perform the L domain for the MAC sub PDU. The read operation reduces the data processing overhead as a whole, which is beneficial to improving the flexibility and efficiency of processing data at the receiving end.

DRAWINGS

The drawings used in the examples or the description of the prior art will be briefly described below.

1 is a network architecture diagram of a possible communication system provided by an embodiment of the present application;

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;

3 is a schematic flowchart of another data transmission method provided by an embodiment of the present application;

4 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;

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.

Detailed ways

First, some concepts and general operation methods involved in the application embodiment will be briefly explained.

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. As the discussion of the new generation of 5G technology gradually deepens, on the one hand, because the communication system is backward compatible, the new technology developed later tends to be compatible with the previously standardized technology; on the other hand, because the 4G LTE system already exists. A large number of existing designs, in order to achieve compatibility, have to sacrifice a lot of flexibility of 5G to reduce performance. Therefore, there are currently two parallel studies in the 3GPP organization, where the backward-compatible technical discussion group is not considered, and is called 5G NR.

The main application scenario of 5G is: enhanced mobile broadband (enhance Mobile Broadband, eMBB), Ultra-reliable and Low Latency Communications (URLLC), Massive Machine Type of Communication (mMTC). Among them, eMBB still aims at users to obtain multimedia content, services and data, and its demand is growing rapidly. On the other hand, since 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.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

Please refer to FIG. 1. 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. Or a multiple connection mode, 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. The primary base station may be an LTE base station, the secondary base station may be an LTE base station, or the primary base station may be an NR base station, the secondary base station may be an LTE base station, or the primary base station may be an NR base station, and the secondary base station may be an NR base station.

In the embodiments of the present application, the terms "network" and "system" are often used interchangeably, and those skilled in the art can understand the meaning thereof. 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.

Referring to FIG. 2A, 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:

In section 201, 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 sub-header ;

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 submit it to the physical layer entity, and then the physical layer entity transmits to the receiving end at the air interface, and the physical end of the receiving end. After the processing of the layer entity is completed, 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.

In the possible example, the method further includes: the receiving end reads the first information field, determining that the first information field indicates that the MAC sub-header includes an L domain, and performing reading for the L domain Or the receiving end reads the first information field, determining that the first information field indicates that the MAC sub-header does not include the L domain, and does not perform a read operation for the L domain.

It can be seen that, in the embodiment of the present application, since the data packet includes a medium access control layer MAC protocol data unit PDU, the MAC PDU includes multiple MAC subsubPDUs, and each MAC subPDU includes one MAC sub-header; wherein, MAC sub- The header includes a first information field, and the first information field is used to indicate whether the MAC sub-header includes a length indication L field. 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, when the MAC sub-header indicating the current MAC subPDU does not include the L domain, the first information field is received. The terminal does not need to repeatedly perform the read operation of the L-domain for the MAC sub-header, thereby reducing the data processing overhead as a whole, and is beneficial to improving the flexibility and efficiency of processing data at the receiving end.

In a possible example, the first information field is used to indicate that the MAC sub-header includes a length indication L field, and the format of the MAC sub-header is the first information domain/second information domain/logic The channel identifier LCID field/bit length format indicates the F domain/the L domain, and the second information field is used to indicate whether the receiving 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.

It can be seen that, in this example, 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.

In a possible example, the first information field is used to indicate that the MAC sub-header does not include a length indication L-domain, and the format of the MAC sub-header is the first information domain/the second information. Domain/the LCID field, the second information field is used to indicate whether the receiving end reads the LCID field.

For example, as shown in FIG. 2B, it is assumed that 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. SDU2, 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, and MAC subSDU6 includes MAC sub-header6 and MAC CE or Padding, and MAC The MAC sub-header1 of the SDU1 includes the L-domain, the MAC sub-header2 of the MAC SDU2 does not include the L-domain, the MAC sub-header3 of the MAC SDU3 does not include the L-domain, and the MAC sub-header4 of the MAC SDU4 does not include the L-domain, and the MAC of the SDU5. The sub-header 5 includes the L domain, and the MAC sub-header 6 of the MAC SDU 6 includes the L domain; then a possible structure of the MAC PDU is as shown in the figure.

The format of the MAC sub-header1 is E1/E2/LCID/F/L, and E1=1, indicating that the MAC sub-header1 of the MAC SDU1 includes the L field, and E2=0, indicating that the receiving end reads the LCID field.

The format of the MAC sub-header2 is E1/E2/LCID, and E1=0, indicating that the MAC sub-header2 of the MAC SDU2 does not include the L-domain, and E2=1, indicating that the receiving end does not read the corresponding LCID;

The MAC sub-header3 format is E1/E2/LCID, and E1=0, indicating that the MAC sub-header3 of the MAC SDU3 does not include the L-domain, and E2=1, indicating that the receiving end does not read the corresponding LCID;

The format of the MAC sub-header4 is E1/E2/LCID, and E1=0, indicating that the MAC sub-header4 of the MAC SDU4 does not include the L-domain, and E2=1, indicating that the receiving end does not read the corresponding LCID;

The format of the MAC sub-header 5 is E1/E2/LCID/F/L, and E1=0, indicating that the MAC sub-header 5 of the MAC SDU5 does not include the L-domain, and E2=0, indicating that the receiving end reads the LCID field;

The format of the MAC sub-header 5 is E1/E2/LCID, and E1=1, indicating that the MAC sub-header6 of the MAC SDU6 does not include the L-domain, and E2=0, indicating that the receiving end reads the corresponding LCID;

Wherein, E1 represents a first information domain, E2 represents a second information domain, and E1 and E2 are configured in pairs.

In one possible example, the second information field is located in the second bit of the MAC sub-header.

In one possible example, the first information field is located in the first bit of the MAC sub-header.

In one possible example, 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.

Referring to FIG. 3, 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:

In section 301, 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 sub-header;

The method is the same as the embodiment of FIG. 2A and FIG. 3, and 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:

In the 401 part, 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 sub-header;

In section 402, 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 sub-header ;

With reference to FIG. 5, FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in the figure, the terminal includes a processor, a memory, a communication interface, and one or a plurality of programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, the program including instructions for performing the following steps;

Receiving a data packet from a 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 sub-header;

It can be seen that, in the embodiment of the present invention, since the data packet includes a medium access control layer MAC protocol data unit PDU, the MAC PDU includes multiple MAC subsubPDUs, and each MAC subPDU includes one MAC sub-header; wherein, MAC sub- The header includes a first information field, and the first information field is used to indicate whether the MAC sub-header includes a length indication L field. 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, when the MAC sub-header indicating the current MAC subPDU does not include the L domain, the first information field is received. The terminal does not need to repeatedly perform the read operation of the L-domain for the MAC sub-header, thereby reducing the data processing overhead as a whole, and is beneficial to improving the flexibility and efficiency of processing data at the receiving end.

Referring to FIG. 6 , FIG. 6 is a network according to an embodiment of the present invention. Schematic diagram of a device, as shown, the terminal includes a processor, a memory, a transceiver, and one or more programs, wherein the one or more programs are stored in the memory and configured by the Executed by a processor, the program including instructions for performing the following steps;

Transmitting 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 sub-header;

The foregoing mainly introduces the solution of the embodiment of the present application from the perspective of interaction between the network elements. Shao. It can be understood that 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. Those skilled in the art will readily appreciate that the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. 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. For example, 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.

In the case of employing an integrated unit, 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. For example, 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 transmitting device shown in FIG. 6. 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 can be a memory.

The processing unit 702 is configured to receive, by the communication unit 703, a data packet from a sending end, where the data packet includes a medium access control layer MAC protocol data unit PDU, where the MAC PDU includes multiple MAC subsubPDUs, each MAC subPDUs include a MAC sub-header;

When the processing unit 702 is a processor, the communication unit 703 is a communication interface, and 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.

In the case of employing an integrated unit, 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. For example, 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 receiving device shown in FIG. 5. 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, and the communication unit 803 can be a transceiver. The storage unit 801 may be a memory, a transceiver circuit, a radio frequency chip, or the like.

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 sub-header;

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. As shown in FIG. 9 , for the convenience of description, only the part related to the embodiment of the present application is shown. If the specific technical details are not disclosed, please refer to the method part of the embodiment of the present application. . The terminal may be any terminal device including a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), an in-vehicle computer, and the terminal is 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. Referring to FIG. 9, 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. And power supply 990 and other components. Technical person It will be understood that the structure of the handset shown in Figure 9 does not constitute a limitation to the handset, and may include more or fewer components than those illustrated, or some components may be combined, or different components may be arranged.

The following describes the components of the mobile phone in detail with reference to FIG. 9:

The RF circuit 910 can be used for receiving and transmitting information. Generally, 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. In addition, 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.

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. Moreover, 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. Specifically, 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. In addition to the fingerprint recognition module 931, the input unit 930 may also include other input devices 932. Specifically, 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. Alternatively, a liquid crystal display (LCD) or an organic light emitting diode (Organic Light-Emitting) can be used. The display screen 941 is configured in the form of Diode, OLED, or the like. Although in FIG. 9, 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. Specifically, 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. As a kind of motion sensor, 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. It 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.

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, and 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. Although 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. Optionally, 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 operations. As a system, user interface, application, etc., 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. Preferably, 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.

Although not shown, the mobile phone may further include a camera, a Bluetooth module, and the like, and details are not described herein again.

In the foregoing embodiment shown in FIG. 2A to FIG. 4, the flow on the terminal side in each step method can be implemented based on the structure of the mobile phone.

In the foregoing embodiments shown in FIG. 5 and FIG. 6, 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 (Electrically EPROM, 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. Of course, 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.

Those skilled in the art should appreciate that in one or more of the above examples, 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. When implemented in 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. When the computer program instructions are loaded and executed on a computer, 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.

The specific embodiments of the present invention have been described in detail with reference to the embodiments, technical solutions and advantages of the embodiments of the present application. It should be understood that the foregoing description is only The scope of the present invention is defined by the scope of the present invention, and any modifications, equivalents, improvements, etc., which are included in the embodiments of the present application, are included in the scope of protection of the embodiments of the present application.

Claims

A data transmission method, comprising:

The receiving end receives the 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 sub-header;

The MAC sub-header includes a first information field, where the first information field is used to indicate whether the MAC sub-header includes a length indication L field.
The method according to claim 1, wherein the first information field is used to indicate that the MAC sub-header includes a length indication L field, and the format of the MAC sub-header is the first information field/ The second information field/logical channel identifier LCID field/bit length format indicates the F field/the L field, and the second information field is used to indicate whether the receiving end reads the LCID field.
The method according to claim 1, wherein the first information field is used to indicate that the MAC sub-header does not include a length indication L-domain, and the format of the MAC sub-header is the first information domain. / The second information field / the LCID field, the second information field is used to indicate whether the receiving end reads the LCID field.
The method according to claim 2 or 3, wherein the second information field is located in the second bit of the MAC sub-header.
The method according to any one of claims 1 to 4, wherein the first information field is located in a first bit of the MAC sub-header.
The method according to any one of claims 1-5, wherein 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.
A data transmission method, comprising:

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 sub-header;

The MAC sub-header includes a first information field, where the first information field is used to indicate whether the MAC sub-header includes a length indication L field.
The method according to claim 7, wherein the first information field is used to indicate that the MAC sub-header includes a length indication L field, and the format of the MAC sub-header is the first information field/ The second information field/logical channel identifier LCID field/bit length format indicates the F field/the L field, and the second information field is used to indicate whether the receiving end reads the LCID field.
The method according to claim 7, wherein the first information field is used to indicate that the MAC sub-header does not include a length indication L-domain, and the format of the MAC sub-header is the first information domain. / The second information field / the LCID field, the second information field is used to indicate whether the receiving end reads the LCID field.
The method according to claim 8 or 9, wherein the second information field is located in the second bit of the MAC sub-header.
The method according to any one of claims 7 to 10, wherein the first information field is located in the first bit of the MAC sub-header.
The method according to any one of claims 7 to 11, wherein 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.
A receiving device, comprising: a processing unit and a communication unit,

The processing unit is configured to receive, by the communications unit, a data packet from a sending end, 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 sub-header;

The MAC sub-header includes a first information field, where the first information field is used to indicate whether the MAC sub-header includes a length indication L field.
A transmitting device, comprising: a processing unit and a communication unit,

The processing unit is configured to send a data packet by using the communication unit, where the data packet includes a medium access control layer MAC protocol data unit PDU, the MAC PDU includes multiple MAC subsubPDUs, and each MAC subPDU includes one MAC Sub-header;

The MAC sub-header includes a first information field, where the first information field is used to indicate whether the MAC sub-header includes a length indication L field.
A terminal, comprising: a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, The program comprises instructions for performing the steps in the method of any of claims 1-6.
A network device, comprising a processor, a memory, a transceiver, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, The program comprises instructions for performing the steps in the method of any of claims 7-12.
A computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method of any of claims 1-6.
A computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method of any one of claims 7-12.