WO2018152674A1

WO2018152674A1 - Data transmission method, terminal, network side device and system

Info

Publication number: WO2018152674A1
Application number: PCT/CN2017/074243
Authority: WO
Inventors: 杨宁
Original assignee: 广东欧珀移动通信有限公司
Priority date: 2017-02-21
Filing date: 2017-02-21
Publication date: 2018-08-30
Also published as: CN109644074B; CN109644074A

Abstract

Disclosed in the embodiments of the present invention are a data transmission method, a terminal, a network side device and a system. The method comprises: a terminal transmitting a medium access control protocol data unit (MAC PDU), the MAC PDU comprising one or more MAC sub-headers, each MAC sub-header of the one or more MAC sub-headers being used for indicating one or more loads of the MAC PDU. The embodiments of the present invention help to reduce the data length of MAC PDUs, and improve the transmission efficiency of MAC PDUs.

Description

Data transmission method, terminal, network side device and system

Technical field

The present invention relates to the field of communications technologies, and in particular, to a data transmission method, a terminal, a network side device, and a system.

Background technique

The Medium Access Control (MAC) Protocol Data Unit (PDU) is an eight-bit aligned bit stream, the leftmost bit of the highest bit of the highest bit, and the lowest bit of the last bit of the last line; MAC The Service Data Unit (SDU) is also an eight-bit aligned bit stream, and the parameters in the MAC PDU are in the same order, with the high order on the left and the low order on the right. The MAC PDU is a MAC layer protocol data unit and is composed of a string of 8 bits. As can be seen from the 3GPP MAC layer protocol 36.321 specification, as shown in FIG. 1, a MAC PDU used in a Long Term Evolution (LTE) system includes one MAC PDU header header, zero or more MAC SDUs, and zero or more. MAC CE and possible padding. A MAC PDU header header contains one or more MAC PDU sub-header MAC sub-headers, and each MAC PDU sub-header MAC sub-header corresponds to one MAC SDU or one MAC CE. Some information in the sub-header MAC sub-header is used to indicate information of the corresponding MAC CE or MAC SDU, such as type, length, location, and the like.

The existing protocol specifies three types of MAC sub-header sub-headers. As shown in Figure 2, the first type of MAC sub-header is identified by the R-domain, F2 (Flag2) domain, E-domain, logical channel identifier LCID field, F ( That is, the Flag domain and the L domain are composed. The R domain occupies the first bit of the MAC sub-header, specifically the reserved bit. The F2 domain and the F domain occupy the second and ninth bits of the MAC sub-header, respectively. The length of the L field field. The E field occupies the third bit of the MAC sub-header. It is used to indicate whether the header of the MAC PDU has an extended field, that is, whether there are duplicate R domains, F2 domains, F domains, and E domains. A sub-header, the LCID field occupies the 4th to 8th bits of the MAC sub-header, and is used to indicate the type of the MAC SDU. For example, 00000 indicates a common control channel (Common Control CHannel, CCCH) Logical channel, where 01011-10111 is the reserved identifier index. The L field occupies the 10th bit of the MAC sub-header to the last bit of the MAC sub-header, specifically 16th or 24th. The second MAC sub-header defaults to the F-domain. The L-domain occupies the 9th to 24th bits of the MAC sub-header. The other fields have the same location and meaning as the first MAC sub-header. In the third MAC sub-header, the F domain and the L domain are defaulted, and only the R domain, the F2 domain, the E domain, and the LCID domain are reserved. The L-domain MAC sub-header has the MAC PDU corresponding to the MAC PDU or the corresponding one. Fixed size MAC CE.

In the 5th Generation (5th Generation, 5G) mobile communication system, a new design different from the MAC CE in the existing LTE system may appear, such as a variable size MAC CE, and for example, in a multi-base parameter set discussion, To design a new Buffer Status Report (BSR) MAC CE. Since the MAC sub-header and the MAC CE of the existing MAC PDU are in one-to-one correspondence, when the one-to-one correspondence method is applied to the 5G system, the number of MAC sub-headers is correspondingly increased due to the increase in the number of MAC CEs. To increase synchronization, it is easy to cause serious data resource waste.

Summary of the invention

The embodiments of the present invention provide a data transmission method, a terminal, a network side device, and a system, so as to reduce the data length of the MAC PDU, and improve the transmission efficiency of the MAC PDU.

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

The terminal transmits a medium access control layer protocol data unit MAC PDU, the MAC PDU includes one or more sub-header MAC sub-headers, and each of the one or more MAC sub-headers is used to indicate One or more loads in the MAC PDU.

It can be seen that, in the embodiment of the present invention, one MAC sub-header in the MAC PDU transmitted by the terminal can correspond to multiple loads, thereby reducing the number of MAC sub-headers in the MAC PDU, thereby reducing the data length of the MAC PDU, which is beneficial to Improve the transmission efficiency of MAC PDUs.

In one possible design, the load is a medium access control layer control element MAC CE or a medium access control layer service data unit MAC SDU.

In a possible design, the MAC sub-header includes a logical channel identifier LCID field, The LCID field is used to indicate a type of a logical channel to which a medium access control layer service data unit MAC SDU belongs in the MAC PDU, and the number of bits in the LCID field is greater than or equal to 1.

In a possible design, the MAC sub-header includes an L domain, where the L domain is used to carry multiplexed data, and the multiplexed data includes at least one of the following: a medium access control layer control element MAC CE or Medium access control layer service data unit MAC SDU;

The MAC sub-header further includes an F2 domain and an F domain, where the F2 domain and the F domain are used to indicate a length of the multiplexed data, or the F2 domain and the F domain are used to indicate the The MAC sub-header further includes an F1 domain, the F1 domain occupies an R domain or an E domain of the MAC sub-header, and the F1 domain, the F2 domain, and the F domain are used to indicate the multiplexed data. length.

It can be seen that, in this design, the L field in the MAC sub-header in the MAC PDU transmitted by the terminal is directly used to carry the multiplexed data, that is, the data that needs to be carried in the load of the MAC PDU may be partially or completely carried in the L. In the domain, the data length of the MAC PDU is effectively reduced, thereby reducing the transmission amount of the MAC PDU and improving the transmission efficiency of the MAC PDU.

In a possible design, before the terminal transmits the medium access control layer protocol data unit MAC PDU, the method further includes:

The terminal receives high layer signaling sent by the network side device, where the high layer signaling includes format configuration information of the MAC PDU.

In a second aspect, an embodiment of the present invention provides a data transmission method, including:

The network side device transmits a medium access control layer protocol data unit MAC PDU, the MAC PDU includes a MAC header MAC sub-header, and each of the one or more MAC sub-headers is used to indicate the One or more loads in the MAC PDU.

It can be seen that, in the embodiment of the present invention, one MAC sub-header in the MAC PDU transmitted by the network side device can correspond to multiple loads, thereby reducing the number of MAC sub-headers in the MAC PDU, thereby reducing the data length of the MAC PDU. It is beneficial to improve the transmission efficiency of MAC PDU.

It can be seen that, in this design, the L field in the MAC sub-header in the MAC PDU transmitted by the network side device is directly used to carry the multiplexed data, that is, the data that needs to be carried in the load of the MAC PDU may be partially or completely carried. In the L domain, the data length of the MAC PDU is effectively reduced, thereby reducing the transmission amount of the MAC PDU and improving the transmission efficiency of the MAC PDU.

In a possible design, before the network side device transmits the medium access control layer protocol data unit MAC PDU, the method further includes:

The network side device sends high layer signaling to the terminal, where the high layer signaling includes format configuration information of the MAC PDU.

In a third aspect, an embodiment of the present invention provides a terminal, where the terminal has a function of implementing behavior of a terminal 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 terminal includes a processor configured to support the terminal in performing the corresponding functions of the above methods. Further, the terminal may further include a transceiver for supporting communication between the terminal and the network side device. Further, the terminal may further include a memory for coupling with the processor, which stores program instructions and data necessary for the terminal.

In a fourth aspect, an embodiment of the present invention provides a network side device, where the network side device has a function of implementing behavior of a network side device in the foregoing method design. The function can be implemented by hardware or The corresponding software implementation is performed by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the network side device includes a processor configured to support the network side device to perform a corresponding function in the above method. Further, the network side device may further include a transceiver, and the transceiver is configured to support communication between the network side device and the terminal. Further, the network side device may further include a memory for coupling with the processor, which saves necessary program instructions and data of the network side device.

In a fifth aspect, an embodiment of the present invention provides a communication system, where the system includes the terminal and the network side device described in the foregoing aspect.

In a sixth aspect, an embodiment of the present invention provides a computer readable storage medium, where the computer readable storage medium stores instructions, when executed on a computer, causing the computer to perform the above first aspect or the second aspect Methods.

In a seventh aspect, an embodiment of the present invention provides a computer program product comprising instructions, when executed on a computer, causing a computer to perform the method of the first aspect or the second aspect.

It can be seen that, in the embodiment of the present invention, one MAC sub-header in the MAC PDU transmitted between the terminal and the network side device can correspond to multiple loads, thereby reducing the number of MAC sub-headers in the MAC PDU, thereby reducing The data length of the MAC PDU is beneficial to improve the transmission efficiency of the MAC PDU.

DRAWINGS

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

FIG. 1 is a schematic structural diagram of a format of a MAC PDU used in an existing 3GPP MAC layer protocol.

Figure 2 shows the three types of MAC sub-headers used in the existing 3GPP MAC layer protocol. Schematic diagram of the format of the format;

3 is a schematic diagram of a possible network architecture provided by an embodiment of the present invention;

4 is a schematic diagram of communication of a data transmission method according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of communication of another data transmission method according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram of communication of another data transmission method according to an embodiment of the present invention; FIG.

7A is a schematic structural diagram of a terminal according to an embodiment of the present invention;

FIG. 7B is a schematic structural diagram of another terminal according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure;

FIG. 8B is a schematic structural diagram of another network side 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 invention.

detailed description

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

Please refer to FIG. 3. FIG. 3 is a possible network architecture provided by an embodiment of the present invention. The network architecture includes a network side device and a terminal. When the terminal accesses the mobile communication network provided by the network side device, the terminal and the network side device can communicate through the wireless link. The network side device may be, for example, a base station in a 5G network. In the embodiments of the present invention, the terms "network" and "system" are often used interchangeably, and those skilled in the art can understand the meaning thereof. The terminal involved in the embodiments of the present invention 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. 4, FIG. 4 is a data transmission method according to an embodiment of the present invention, which is applied to a mobile communication network including a network side device and a terminal, where the network side device is in communication connection with the terminal, and the method includes: 401 Part, as follows:

401. The terminal transmits a medium access control layer protocol data unit MAC PDU, where the MAC PDU includes one or more sub-header MAC sub-headers, and each of the one or more MAC sub-headers is used for the MAC sub-header. Indicates one or more loads in the MAC PDU.

402. The network side device transmits a medium access control layer protocol data unit MAC PDU, where the MAC PDU includes one or more sub-header MAC sub-headers, and each of the one or more MAC sub-headers is a MAC sub-header. Used to indicate one or more loads in the MAC PDU.

In one possible example, the payload is a Medium Access Control Layer Control Element MAC CE or a Medium Access Control Layer Service Data Unit MAC SDU.

For example, the MAC header of a MAC PDU includes a MAC sub-header1 and a MAC sub-header2, and a payload portion of the MAC PDU (ie, a subsequent field except the MAC header) includes a MAC CE1, a MAC CE2, a MAC CE3, and a MAC SDU1. , MAC SDU2, MAC SDU3, and padding. The MAC sub-header1 corresponds to the MAC CE1, the MAC CE2, and the MAC CE3, and the MAC sub-header2 corresponds to the MAC SDU1, the MAC SDU2, and the MAC SDU3.

In a possible example, the MAC sub-header includes a logical channel identifier LCID field, where the LCID field is used to indicate a type of a logical channel to which a medium access control layer service data unit MAC SDU belongs in the MAC PDU. The number of bits in the LCID field is greater than or equal to 1.

If the number of bits in the MAC sub-header occupied by the LCID field is 5 bits, the index information of the LCID field may be directly defined by the part of the existing LCID field. The details are shown in Table 1. The index information of the LCID field can be configured through high layer signaling and notified to the terminal.

Table 1 indicates the index information table of the LCID field.

LCID值LCID value	MAC SDU所属逻辑信道的类型Type of logical channel to which the MAC SDU belongs
0000000000	公共控制信道CCCHCommon control channel CCCH
00001-0101000001-01010	Identity of the logical channelIdentity of the logical channel
01011-1011101011-10111	ReservedReserved
1100011000	Activation/Deactivation(4octets)Activation/Deactivation(4octets)
1100111001	SC-MCCH,SC-MTCH(see note)SC-MCCH, SC-MTCH (see note)
1101011010	Long DRX CommandLong DRX Command
1101111011	Activation/Deactivation(1octet)Activation/Deactivation(1octet)
1110011100	UE Contention Resolution IdentityUE Contention Resolution Identity

1110111101	Timing Advance CommandTiming Advance Command
1111011110	DRX CommandDRX Command
1111111111	PaddingPadding

In a possible example, the MAC sub-header includes an L domain, where the L domain is used to carry multiplexed data, and the multiplexed data includes at least one of the following: a medium access control layer control element MAC CE or Medium access control layer service data unit MAC SDU;

For example, when the MAC sub-header includes the F2 domain and the F domain, the length of the multiplexed data indicated by the value of the F2 domain F domain may be as shown in Table 2.

Table 2F domain F2 domain indication information

For example, when the MAC sub-header includes the F2 domain and the F domain, and the F1 domain, and the F1 domain occupies the R domain of the MAC sub-header, the reuse indicated by the values of the F1 domain, the F domain, and the F2 domain. The length of the data can be as shown in Table 3.

Table 3F1 domain F domain F2 domain indication information

F1F F2F1F F2	复用数据长度(bit)Multiplexed data length (bit)
000000	Not existNot exist
001001	Not existNot exist
010010	Not existNot exist
011011	3131
100100	Not existNot exist
101101	Not existNot exist
110110	Not existNot exist
111111	3939

In a possible example, before the terminal transmits the medium access control layer protocol data unit MAC PDU, the method further includes:

In a possible example, before the network side device transmits the medium access control layer protocol data unit MAC PDU, the method further includes:

The network side device may specifically determine, according to the usage scenario to which the MAC entity entity belongs, whether the MAC header format to be configured is configured, for example, the usage scenario corresponding to the MAC entity is a resource-restricted scenario, and the network side is configured as described in the embodiment of the present invention. Any MAC header format; the usage scenario corresponding to the MAC entity is a non-resource-constrained scenario, and the network side device selects an existing MAC address. Header format to save signaling overhead.

For example, if the network side device needs to configure the MAC header format of a MAC entity, and the MAC entity needs to configure a MAC sub-header that can carry multiplexed data with a length of 39 bits, the MAC configured for the MAC entity. The sub-header is shown in Table 4, where F1F2F=111, which is used to indicate that the length of the multiplexed data is 39 bits, and the multiplexed data is specifically MAC CE.

Table 4 multiplexed MAC sub-header with a data length of 39 bits

Referring to FIG. 5, FIG. 5 is a data transmission method of a mechanism according to an embodiment of the present invention, which is applied to a mobile communication network including a network side device and a terminal, where the network side device is in communication connection with the terminal, and the method is Description of the downlink data transmission angle, the method includes: 501 to 502 parts, as follows:

501. The network side device sends a medium access control layer protocol data unit MAC PDU to the terminal, where the MAC PDU includes one or more sub-header MAC sub-headers, and each of the one or more MAC sub-headers A -header is used to indicate one or more loads in the MAC PDU.

502. The terminal receives the MAC PDU.

It can be seen that, in the embodiment of the present invention, one MAC sub-header in the MAC PDU sent by the network side device to the terminal can correspond to multiple loads, thereby reducing the number of MAC sub-headers in the MAC PDU, thereby reducing the MAC PDU. The data length is beneficial to improve the transmission efficiency of the MAC PDU.

Please refer to FIG. 6. FIG. 6 is a schematic diagram of a data transmission method according to an embodiment of the present invention. The mobile communication network includes a network side device and a terminal, and the network side device is in communication connection with the terminal. The method is described from an uplink data transmission point. The method includes: 601 to 602 parts, as follows:

601. The terminal sends a medium access control layer protocol data unit MAC PDU to the network side device, where the MAC PDU includes one or more sub-header MAC sub-headers, and each of the one or more MAC sub-headers A -header is used to indicate one or more loads in the MAC PDU.

602. The network side device receives the MAC PDU sent by the terminal.

It can be seen that, in the embodiment of the present invention, one MAC sub-header in the MAC PDU sent by the terminal to the network side device can correspond to multiple loads, thereby reducing the number of MAC sub-headers in the MAC PDU, thereby reducing the MAC PDU. The data length is beneficial to improve the transmission efficiency of the MAC PDU.

The foregoing describes the solution of the embodiment of the present invention mainly from the perspective of interaction between the network elements. It can be understood that the terminal and the network side 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 invention 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 implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The embodiments of the present invention may perform the division of functional units on the terminal and the network side 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 functional unit. It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.

In the case of employing an integrated unit, FIG. 7A shows a possible structural diagram of the first core network device involved in the above embodiment. The terminal 700 includes a processing unit 702 and a communication unit 703. The processing unit 702 is configured to perform control management on the action of the terminal, for example, by the processing unit 702. Step 401 in FIG. 4, step 502 in FIG. 6, step 601 in FIG. 6, and/or other processes for the techniques described herein are performed at the support terminal. The communication unit 703 is for supporting communication between the terminal and other devices, such as communication with the network side device shown in FIG. 1. The terminal may further include a storage unit 701 for storing program codes and data of the terminal.

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 transmit, by the communication unit 703, a medium access control layer protocol data unit MAC PDU, where the MAC PDU includes one or more sub-header MAC sub-headers, the one or more MAC sub Each MAC sub-header in the -header is used to indicate one or more loads in the MAC PDU.

The MAC sub-header further includes an F2 domain and an F domain, where the F2 domain and the F domain are used to indicate a length of the multiplexed data, or the F2 domain and the F domain are used to indicate the The MAC sub-header further includes an F1 domain, where the F1 domain occupies an R domain or an E domain of the MAC sub-header, and the F1 domain, The F2 domain and the F domain are used to indicate the length of the multiplexed data.

In a possible example, the processing unit 702 is further configured to receive the high layer signaling sent by the network side device by using the communication unit 703 before the media access control layer protocol data unit MAC PDU is transmitted by the communication unit 703. The high layer signaling includes format configuration information of the MAC PDU.

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 terminal involved in the embodiment of the present invention may be the terminal shown in FIG. 4B.

Referring to FIG. 7B, the terminal 710 includes a processor 712, a communication interface 713, and a memory 711. Optionally, the terminal 710 may further include a bus 714. The communication interface 713, the processor 712, and the memory 711 may be connected to each other through a bus 714. The bus 714 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (abbreviated). EISA) bus and so on. The bus 714 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7B, but it does not mean that there is only one bus or one type of bus.

The terminal shown in FIG. 7A or FIG. 7B can also be understood as a device for a terminal, which is not limited in the embodiment of the present invention.

In the case of employing an integrated unit, FIG. 8A shows a possible structural diagram of the first core network device involved in the above embodiment. The network side device 800 includes a processing unit 802 and a communication unit 803. The processing unit 802 is configured to perform control management on the action of the network side device. For example, the processing unit 802 is configured to support the network side device to perform step 402 in FIG. 4, step 501 in FIG. 5, 602 in the step of FIG. 6, and/or Other processes for the techniques described herein. The communication unit 803 is for supporting communication between the network side device and other devices, such as communication with the terminal shown in FIG. The network side device may further include a storage unit 801 for storing program codes and data of the network side device.

The processing unit 802 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 803 may be a transceiver, a transceiver circuit, or the like, and the storage unit 801 may be a memory.

The processing unit 802 is configured to transmit, by the communication unit 803, a medium access control layer protocol data unit MAC PDU, where the MAC PDU includes one or more sub-packet MAC sub-headers, the one or more MAC sub Each MAC sub-header in the -header is used to indicate one or more loads in the MAC PDU.

In one possible example, the processing unit 802 is further configured to send high layer signaling to the terminal before the medium access control layer protocol data unit MAC PDU is transmitted by the communication unit 803, where the high layer signaling includes the MAC Format configuration information of the PDU.

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 network side device according to the embodiment of the present invention may be the network side device shown in FIG. 8B.

Referring to FIG. 8B, the network side device 810 includes a processor 812, a communication interface 813, and a memory 811. Optionally, the network side device 810 may further include a bus 815. Among them, the communication interface 813, the processor 812 and the memory 811 can be connected to each other through a bus 815; the bus 815 can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. . The bus 815 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8B, but it does not mean that there is only one bus or one type of bus.

The network side device shown in FIG. 8A or FIG. 8B can also be understood as a device for the network side device, which is not limited in the embodiment of the present invention.

The embodiment of the present invention further provides another terminal. As shown in FIG. 9 , for the convenience of description, only parts related to the embodiment of the present invention are shown. If the specific technical details are not disclosed, please refer to the method part of the embodiment of the present invention. . 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 invention. 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. It will be understood by those skilled in the art that 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 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-Term Short Messaging Service (SMS), etc.

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, 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. 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. Other sensors such as gyroscopes, barometers, hygrometers, thermometers, and infrared sensors are not described here.

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 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. 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 embodiments shown in FIG. 4 to FIG. 6, the process on the terminal side in each step method may be implemented based on the structure of the mobile phone.

In the foregoing embodiment shown in FIGS. 7A and 7B, each unit function can be implemented based on the structure of the mobile phone.

The steps of the method or algorithm described in the embodiments of the present invention may be implemented in hardware, and also This can be accomplished by the 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. 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 invention 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 invention 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 described above, the objects, technical solutions and beneficial effects of the embodiments of the present invention The foregoing is a detailed description of the embodiments of the present invention, and is not intended to limit the scope of the embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc., which are made above, are intended to be included within the scope of the present invention.

Claims

A data transmission method, comprising:

The terminal transmits a medium access control layer protocol data unit MAC PDU, the MAC PDU includes one or more sub-header MAC sub-headers, and each of the one or more MAC sub-headers is used to indicate One or more loads in the MAC PDU.
The method according to claim 1, wherein the load is a medium access control layer control element MAC CE or a medium access control layer service data unit MAC SDU.
The method according to claim 1 or 2, wherein the MAC sub-header includes a logical channel identifier LCID field, and the LCID field is used to indicate a medium access control layer service data unit MAC in the MAC PDU. The type of the logical channel to which the SDU belongs. The number of bits in the LCID field is greater than or equal to 1.
The method according to any one of claims 1 to 3, wherein the MAC sub-header includes an L domain, and the L domain is used to carry multiplexed data, and the multiplexed data includes at least one of the following : a medium access control layer control element MAC CE or a medium access control layer service data unit MAC SDU;

The MAC sub-header further includes an F2 domain and an F domain, where the F2 domain and the F domain are used to indicate a length of the multiplexed data, or the F2 domain and the F domain are used to indicate the The MAC sub-header further includes an F1 domain, the F1 domain occupies an R domain or an E domain of the MAC sub-header, and the F1 domain, the F2 domain, and the F domain are used to indicate the multiplexed data. length.
The method according to any one of claims 1-4, wherein before the terminal transmits the medium access control layer protocol data unit MAC PDU, the method further includes:

The terminal receives high layer signaling sent by the network side device, where the high layer signaling includes format configuration information of the MAC PDU.
A data transmission method, comprising:

The network side device transmits a medium access control layer protocol data unit MAC PDU, where the MAC PDU includes one or more sub-header MAC sub-headers, in the one or more MAC sub-headers Each MAC sub-header is used to indicate one or more loads in the MAC PDU.
The method according to claim 6, wherein the load is a medium access control layer control element MAC CE or a medium access control layer service data unit MAC SDU.
The method according to claim 6 or 7, wherein the MAC sub-header includes a logical channel identifier LCID field, and the LCID field is used to indicate a medium access control layer service data unit MAC in the MAC PDU. The type of the logical channel to which the SDU belongs. The number of bits in the LCID field is greater than or equal to 1.
The method according to any one of claims 6 to 8, wherein the MAC sub-header includes an L domain, and the L domain is used to carry multiplexed data, and the multiplexed data includes at least one of the following : a medium access control layer control element MAC CE or a medium access control layer service data unit MAC SDU;

The MAC sub-header further includes an F2 domain and an F domain, where the F2 domain and the F domain are used to indicate a length of the multiplexed data, or the F2 domain and the F domain are used to indicate the The MAC sub-header further includes an F1 domain, the F1 domain occupies an R domain or an E domain of the MAC sub-header, and the F1 domain, the F2 domain, and the F domain are used to indicate the multiplexed data. length.
The method according to any one of claims 6-9, wherein before the network side device transmits the medium access control layer protocol data unit MAC PDU, the method further includes:

The network side device sends high layer signaling to the terminal, where the high layer signaling includes format configuration information of the MAC PDU.
A terminal, comprising: a processing unit and a communication unit,

The processing unit is configured to transmit a medium access control layer protocol data unit MAC PDU by using the communication unit, where the MAC PDU includes one or more sub-header MAC sub-headers, and the one or more MAC sub-headers Each MAC sub-header is used to indicate one or more loads in the MAC PDU.
The terminal according to claim 11, wherein the load is a medium access control layer control element MAC CE or a medium access control layer service data unit MAC SDU.
The terminal according to claim 11 or 12, wherein said MAC sub-header And including a logical channel identifier LCID field, where the LCID field is used to indicate a type of a logical channel to which the medium access control layer service data unit MAC SDU belongs in the MAC PDU, where the number of bits of the LCID field is greater than or equal to 1.
The terminal according to any one of claims 11 to 13, wherein the MAC sub-header includes an L domain, and the L domain is used to carry multiplexed data, and the multiplexed data includes at least one of the following : a medium access control layer control element MAC CE or a medium access control layer service data unit MAC SDU;

The MAC sub-header further includes an F2 domain and an F domain, where the F2 domain and the F domain are used to indicate a length of the multiplexed data, or the F2 domain and the F domain are used to indicate the The MAC sub-header further includes an F1 domain, the F1 domain occupies an R domain or an E domain of the MAC sub-header, and the F1 domain, the F2 domain, and the F domain are used to indicate the multiplexed data. length.
The terminal according to any one of claims 11 to 14, wherein the processing unit is further configured to receive a network through the communication unit before the medium access control layer protocol data unit MAC PDU is transmitted by the communication unit. The high layer signaling sent by the side device, where the high layer signaling includes format configuration information of the MAC PDU.
A network side device, comprising: a processing unit and a communication unit,

The processing unit is configured to transmit a medium access control layer protocol data unit MAC PDU by using the communication unit, where the MAC PDU includes one or more sub-header MAC sub-headers, and the one or more MAC sub-headers Each MAC sub-header is used to indicate one or more loads in the MAC PDU.
The network side device according to claim 16, wherein the load is a medium access control layer control element MAC CE or a medium access control layer service data unit MAC SDU.
The network side device according to any one of claims 16 or 17, wherein the MAC sub-header includes a logical channel identifier LCID field, and the LCID field is used to indicate media access control in the MAC PDU. The type of the logical channel to which the layer service data unit MAC SDU belongs, and the number of bits of the LCID field is greater than or equal to 1.
The network side device according to any one of claims 16 to 18, wherein the MAC The sub-header includes an L field, where the L domain is used to carry multiplexed data, and the multiplexed data includes at least one of the following: a medium access control layer control element MAC CE or a medium access control layer service data unit MAC SDU ;

The MAC sub-header further includes an F2 domain and an F domain, where the F2 domain and the F domain are used to indicate a length of the multiplexed data, or the F2 domain and the F domain are used to indicate the The MAC sub-header further includes an F1 domain, the F1 domain occupies an R domain or an E domain of the MAC sub-header, and the F1 domain, the F2 domain, and the F domain are used to indicate the multiplexed data. length.
The network side device according to any one of claims 16 to 19, wherein the processing unit is further configured to send a high layer letter to the terminal before the medium access control layer protocol data unit MAC PDU is transmitted by the communication unit. The high layer signaling includes format configuration information of the MAC PDU.
A terminal, comprising: a processor, a memory, and a transceiver, wherein the processor is communicatively coupled to the memory and the transceiver;

The memory stores program code and data, and the processor is configured to invoke the program code and the data in the memory to perform the method of any one of claims 1-5.
A network side device, comprising: a processor, a memory and a transceiver, wherein the processor is communicatively coupled to the memory and the transceiver;

The memory stores program code and data, and the processor is configured to invoke the program code and the data in the memory to perform the method of any one of claims 6-10.
A communication system, comprising the terminal according to any one of claims 11 to 15 and the network side device according to any one of claims 16 to 20.