CN110958645B

CN110958645B - Data transmission method and communication equipment

Info

Publication number: CN110958645B
Application number: CN201811133328.5A
Authority: CN
Inventors: 马玥
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2022-01-25
Anticipated expiration: 2038-09-27
Also published as: CN110958645A; WO2020063474A1

Abstract

The invention provides a data transmission method and communication equipment, wherein the data transmission method comprises the following steps: generating a plurality of RRC segmentation entities; each RRC segmentation entity in the plurality of RRC segmentation entities carries part of data content in an RRC message generated by the communication equipment sending party, and all data content in the RRC message is carried by the plurality of RRC segmentation entities; and sending the plurality of RRC segmentation entities to a communication device receiving party. The scheme of the invention can realize the segmentation of the RRC message, thereby adapting the PDCP SDU when the RRC message is overlarge, reducing the requirement on an RRC buffer, completing the transmission of the RRC message and ensuring the smooth operation of the corresponding communication process.

Description

Data transmission method and communication equipment

Technical Field

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

Background

In 5G (5th-Generation, fifth Generation mobile communication technology) and LTE (Long Term Evolution), an air interface capability of a terminal, such as a UE (User Equipment), is reported through a Radio Resource Control (RRC) layer. In the face of more and more Frequency band combinations, differences in the capabilities of each combined Frequency band, different MIMO (Multiple-Input Multiple-Output) and RF (Radio Frequency) capabilities, and the like, UE capability reporting may need to occupy a large space. For example, a UE may reach the maximum value of 1G byte during the 5G air interface capability report.

In addition, the NR (New Radio) system has measurement configuration Information related to CSI-RS (Channel State Information-Reference Signal) and RACH (Random Access Channel) configuration Information, and when the CSI-RS uses too many resources, the corresponding RRC message is also too large.

At present, the RRC layer entity is configured to directly send a generated RRC message as an RRC PDU (Protocol Data Unit), that is, a PDCP (Packet Data Convergence Protocol) SDU (Service Data Unit) to the PDCP layer entity. And the maximum value of the PDCP SDU size is, for example, 8188 bytes in the 4G system and 9000 bytes in the 5G system.

Therefore, when the RRC message is too large, the limitation of the PDCP SDU is exceeded, the requirement of the RRC buffer is too large, and the smooth proceeding of the corresponding communication process is influenced.

Disclosure of Invention

The embodiment of the invention provides a data transmission method and communication equipment, which are used for solving the problems that the limit of PDCP SDU is exceeded and the requirement of an RRC buffer is overlarge when an RRC message is overlarge in the prior art.

In a first aspect, an embodiment of the present invention provides a data transmission method, which is applied to a communication device sender, where the communication device sender is one of a terminal and a network device, and the method includes:

generating a plurality of RRC segmentation entities; each RRC segmentation entity in the plurality of RRC segmentation entities carries part of data content in an RRC message generated by the communication equipment sending party, and all data content in the RRC message is carried by the plurality of RRC segmentation entities;

and sending the plurality of RRC segmentation entities to a communication device receiving party.

In a second aspect, an embodiment of the present invention provides a data transmission method, which is applied to a communication device receiver, where the communication device receiver is one of a terminal and a network device, and the method includes:

receiving a plurality of RRC segmentation entities from a communication device sender;

each of the plurality of RRC segmentation entities carries a part of data content in an RRC message generated by the communication device sender, and all data content in the RRC message is carried by the plurality of RRC segmentation entities.

In a third aspect, an embodiment of the present invention provides a communication device, where the communication device is a sender, and the communication device is one of a terminal and a network device, and the method includes:

a generating module for generating a plurality of RRC segmentation entities; each of the plurality of RRC segment entities carries a part of data content in an RRC message generated by the communication device, and all data content in the RRC message is carried by the plurality of RRC segment entities;

a sending module, configured to send the multiple RRC segmentation entities to a communication device receiver.

In a fourth aspect, an embodiment of the present invention provides a communication device, where the communication device is a receiving side, and the communication device is one of a terminal and a network device, and the communication device includes:

a receiving module, configured to receive a plurality of RRC segmentation entities from a sender of a communication device;

In a fifth aspect, an embodiment of the present invention provides a communication device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, can implement the steps of the data transmission method described above. Optionally, the communication device may be a sender, or a receiver, or may also be a terminal, or a network device.

In a sixth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement the steps of the above data transmission method.

In the embodiment of the invention, by generating a plurality of RRC segmentation entities, each RRC segmentation entity in the plurality of RRC segmentation entities carries part of data content in an RRC message generated by a communication equipment sending party, all data content in the RRC message is carried by the plurality of RRC segmentation entities, and the plurality of RRC segmentation entities are sent to a communication equipment receiving party, the RRC message can be segmented, so that when the RRC message is overlarge, PDCP SDU can be adapted, the requirement on an RRC buffer is reduced, the transmission of the RRC message is completed, and the smooth progress of a corresponding communication process is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a flow chart of a data transmission method according to an embodiment of the present invention;

FIG. 2 is a flow chart of another data transmission method according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a communication device according to an embodiment of the present invention;

fig. 4 is a second schematic structural diagram of a communication device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Detailed Description

First, it is explained that, in order to solve the problem that the existing RRC message will exceed the limit of PDCP SDU and result in too large requirement of RRC buffer, the embodiment of the present invention introduces an RRC segmentation function, which can be carried by an RRC layer entity or a new protocol layer entity. By the introduced RRC segmentation function, the oversized RRC message can be segmented to obtain a plurality of RRC segmentation entities, the plurality of RRC segmentation entities can carry all data contents in the corresponding RRC message, each RRC segmentation entity in the plurality of RRC segmentation entities can carry partial data contents in the corresponding RRC message, and each RRC segmentation entity is used as PDCP SDU to be delivered to a PDCP layer entity, so that the PDCP SDU can be adapted when the RRC message is oversized, the requirement on an RRC buffer is reduced, the transmission of the RRC message is completed, and the smooth proceeding of the corresponding communication process is ensured.

In a specific implementation, after the sender (may be simply referred to as the sender) of the communication device generates the RRC message, the corresponding transmission process may sequentially be: from a sender RRC layer entity, a sender PDCP layer entity, a sender RLC layer entity, a sender MAC layer entity, a sender PHY layer entity, a receiver (i.e., communication device receiver) PHY layer entity, a receiver MAC layer entity, a receiver RLC layer entity, a receiver PDCP layer entity, to a receiver RRC layer entity. The RRC segmentation entity thus generated by the RRC segmentation function may exist in the form of an RRC PDU for the sender and may be received as a PDCP SDU for the receiver, i.e., the RRC PDU may be identical to the PDCP SDU.

The data transmission method of the present invention will be described below with reference to the embodiments and the drawings.

Referring to fig. 1, an embodiment of the present invention provides a data transmission method, which is applied to a communication device sender, where the communication device sender may be any one of a terminal and a network device, and the method includes the following steps:

step 101: a plurality of RRC fragmentation entities are generated.

Wherein the RRC segmentation entity may exist in the form of RRC PDU for the transmitting side. Each RRC segmentation entity in the plurality of RRC segmentation entities carries a part of data content in an RRC message generated by a sender of the communication device, and all data content in the RRC message is carried by the plurality of RRC segmentation entities. The generating of the multiple RRC segmentation entities may be understood as performing segmentation processing on the generated RRC message by using an RRC segmentation function of an RRC layer entity of a sender of the communication device or an RRC segmentation function of a new protocol layer entity to obtain multiple RRC segmentation entities. That is, the generated RRC message may be divided into a plurality of RRC messages for transmission by means of the RRC segmentation function.

It can be understood that, in the specific implementation, corresponding to the uplink data transmission process, the sender of the communication device is a terminal, and the receiver of the communication device is a network device; corresponding to the downlink data transmission process, the sender of the communication equipment is the network equipment, and the receiver of the communication equipment is the terminal.

For example, if the sender of the communication device is UE1, and an RRC message generated by UE1 occupies 15000 bytes (exceeding the PDCP SDU limit), UE1 may use the RRC segmentation function of the RRC layer entity (or the new protocol layer entity) to segment the RRC message into RRC PDU1 (such as 7000 bytes) and RRC PDU2 (such as 8000 bytes), or into RRC PDU1 (such as 4000 bytes), RRC PDU2 (such as 4000 bytes) and RRC PDU3 (such as 6000 bytes), so as to adapt to the PDCP SDU and complete the transmission of the RRC message.

It should be noted that, in the above embodiments, the segmentation processing is only taken as an example of two or three segments, and in a specific implementation, the segmentation processing may also be taken as four segments, and the like, which is not limited in the embodiments of the present invention. As for how to perform the segmentation processing on the RRC message, i.e. how to select the byte occupied by the RRC segmentation entity, the sender may select the byte as needed or based on a preset rule.

Step 102: a plurality of RRC fragmentation entities are sent to a communication device recipient.

Thus, after receiving the multiple RRC segmentation entities, the communication device receiver can recombine the multiple RRC segmentation entities to obtain a complete RRC message.

In the data transmission method of the embodiment of the invention, by generating the plurality of RRC segmentation entities, each RRC segmentation entity in the plurality of RRC segmentation entities carries part of data content in the RRC message generated by the communication equipment sending party, all data content in the RRC message is carried by the plurality of RRC segmentation entities, and the plurality of RRC segmentation entities are sent to the communication equipment receiving party, the RRC message can be segmented, so that when the RRC message is overlarge, PDCP SDU can be adapted, the requirement on an RRC buffer is reduced, the transmission of the RRC message is completed, and the corresponding communication process is ensured to be smoothly carried out.

In this embodiment of the present invention, optionally, the group packet information of the RRC segmented entities may include reassembly indication information, where the reassembly indication information is used by the receiver of the communication device to reassemble the received multiple RRC segmented entities to obtain a complete RRC message. The group packet information may be a packet header or other form of information element.

Thus, by means of the reconfiguration indication information, the communication device receiver can reconfigure the received multiple RRC segmentation entities to complete the reconfiguration of the corresponding RRC message.

Further, the reassembly indication information may include at least one of:

segment Information (SI), Sequence Number (SN), offset flag value (SO), and priority indication information.

Optionally, the segmentation information may be used to indicate a location of the corresponding RRC segmentation entity in the RRC message, that is, a location of a part of data content of the RRC message carried by the corresponding RRC segmentation entity in the entire data content of the RRC message. Thus, the receiving side can determine the position of the RRC segmentation entity in the corresponding RRC message according to the segmentation information, thereby completing the recombination of the corresponding RRC message.

For example, in a specific implementation, the segmentation information may include X bit, and the X typical value may be 2; the fragmentation information may be used to indicate a first fragment (first), a middle fragment (middle), or a last fragment (last) of the corresponding RRC fragmentation entity in the RRC message; while other forms of Xbit field connotations may differ. In addition, in case of non-segmentation processing, the segmentation information may also indicate that the RRC message corresponding to the corresponding RRC PDU is not segmented.

Optionally, the sequence number may be used to indicate a sequence number of an RRC message corresponding to the corresponding RRC segmentation entity. Thus, the receiving side can determine the RRC segmentation entity from the same RRC message according to the sequence number, thereby completing the recombination of the RRC message.

It is noted that when the RRC multiplexing (duplexing) function is enabled, the reassembly indication message includes a sequence number so that the receiver identifies the RRC segmentation entities from the same RRC message. For example, in an embodiment, the sequence number may comprise Y bits, and the Y representative value may be 1 or 2.

Optionally, the offset flag value may be used to indicate an offset position of the corresponding RRC segmentation entity in the RRC message, that is, an offset position of a part of data content of the RRC message carried by the corresponding RRC segmentation entity in the entire data content of the RRC message. It is worth noting that when PDCP is delivered out of order, the reassembly indication information includes an offset flag value to distinguish the positions of RRC segmentation entities with similar positions in RRC messages. For example, in a particular implementation, the offset flag value may comprise P bit, and the ptype value may be 2 or 3. The offset flag value may also be in the form of a segment number, and the invention is not limited to the specific form of the offset. If the form of segment numbering is used, Z bits may be used.

For example, if an RRC message generated by a UE is segmented into an RRC PDU1, an RRC PDU2, an RRC PDU3, and an RRC PDU4, according to the respective SI already indicating the first of the RRC PDU1 in the RRC message, the midlet of the RRC PDU2 in the RRC message, the midlet of the RRC PDU3 in the RRC message, and the last of the RRC PDU4 in the RRC message, after the receiving side receives the RRC PDU2 and the RRC PDU3, the sequence positions of the RRC PDU2 and the RRC PDU3 cannot be distinguished (only the midlet of the two in the RRC message is known), and according to the offset position indicated by the SO, the sequence positions of the RRC PDU2 and the RRC PDU3 can be distinguished, that is, the RRC PDU2 is located before the RRC PDU3, SO as to complete the reassembly of the RRC message.

Optionally, the priority indication information may be used to indicate a reassembly priority of the RRC message corresponding to the corresponding RRC segmentation entity, so as to complete the reassembly of the RRC message according to the priority. For example, if there are multiple RRC messages to be reassembled, the multiple RRC messages may be sequentially reassembled according to the priority level according to the priority indication information included in the RRC segment entity corresponding to each RRC message.

In a specific embodiment of the present invention, the group packet information of the RRC segment entity may further include a reserved bit (R bit), and the reserved bit may be used in a subsequent new adding function. While in order to ensure that the package information occupies an integer number of bytes (byte align), the reserved bits may be filled in locations where there are insufficient bytes.

Some specific uplink and downlink combination configurations in specific implementations are explained below.

For example, if the uplink PDCP entity and the downlink PDCP entity are sequentially delivered and the downlink RRC multiplexing function is enabled, the group information of the uplink RRC segmentation entity may include SI and R bits, and the group information of the downlink RRC segmentation entity may include SI, SN, and R bits.

For another example, if the uplink and downlink PDCP are delivered out of order, the group package information of the uplink RRC segmentation entity may include SI, R bit, and SO, and the group package information of the downlink RRC segmentation entity may include SI, SN, R bit, and SO.

For another example, if the uplink PDCP entity and the downlink PDCP entity are submitted in sequence, the uplink RRC multiplexing function is not enabled and there is no more than one RRC message to be sent simultaneously, the group information of the uplink RRC segment entity may include an SI bit and an R bit, and the group information of the downlink RRC segment entity may include an SI bit and an R bit.

For another example, if the uplink PDCP entity and the downlink RRC entity are delivered out of order and neither the uplink RRC multiplexing function nor the downlink RRC multiplexing function is enabled, the group information of the uplink RRC segment entity may include an R bit and an SO, and the group information of the downlink RRC segment entity may include an R bit and an SO.

In an embodiment of the present invention, optionally, the step 101 may include:

generating an RRC message;

and carrying out segmentation processing on the RRC message to obtain the plurality of RRC segmentation entities.

The segmentation processing of the RRC message can be implemented by using an RRC segmentation function of the RRC layer entity or the new protocol layer entity.

Optionally, when there are multiple RRC messages that need to be processed in a segmented manner, the multiple RRC messages may be sequentially processed in a segmented manner according to the preset priorities of the multiple RRC messages. For example, in specific implementation, rules that SRB0, SRB1, and SRB2 take precedence over SRB3 and SRB4 may be set in advance.

Therefore, the RRC message can be processed in a segmented mode according to requirements, namely important RRC message priority processing is carried out, and the communication process is ensured to be carried out smoothly.

Referring to fig. 2, an embodiment of the present invention provides a data transmission method, which is applied to a communication device receiver, where the communication device receiver may be any one of a terminal and a network device, and the method includes the following steps:

step 201: receiving a plurality of RRC segmentation entities from a communication device sender; each of the plurality of RRC segmentation entities carries a part of data content in an RRC message generated by the communication device sender, and all data content in the RRC message is carried by the plurality of RRC segmentation entities.

Wherein the RRC segmentation entity may be received as PDCP SDUs for the receiving side.

The data transmission method of the embodiment of the invention can realize the segmentation of the RRC message, thereby adapting the PDCP SDU when the RRC message is overlarge, reducing the requirement on an RRC buffer, completing the transmission of the RRC message and ensuring the smooth operation of the corresponding communication process.

In this embodiment of the present invention, optionally, the group packet information of the RRC segment entity may include reassembly indication information; after step 201, the method may further comprise:

and recombining the plurality of RRC segmented entities according to the recombination indication information to obtain a complete RRC message.

Optionally, the reassembly indication information may include at least one of:

segmentation information, sequence numbers, offset flag values, and priority indication information.

Wherein the segmentation information is used to indicate the location of the corresponding RRC segmentation entity in the RRC message; thus, the receiver can determine the position of the corresponding RRC segmentation entity in the RRC message according to the segmentation information, thereby completing the recombination of the RRC message.

The sequence number is used for indicating the sequence number of the RRC message corresponding to the corresponding RRC segmentation entity; thus, the receiving side can determine the RRC segmentation entity from the same RRC message according to the sequence number, thereby completing the recombination of the RRC message.

The offset flag value is used for indicating the offset position of the corresponding RRC segmentation entity in the RRC message; therefore, the receiver can distinguish the positions of the RRC segmentation entities with similar positions in the corresponding RRC message according to the offset marking value, thereby finishing the recombination of the RRC message.

The priority indication information is used for indicating the recombination priority of the RRC message corresponding to the corresponding RRC segmentation entity; therefore, the receiver can complete the recombination of the RRC message according to the priority level indication information.

Optionally, when the plurality of RRC segmentation entities are reassembled, the method may further include:

judging whether the recombination timer is overtime or not; wherein the reassembly timer is started at the start of reassembly;

when the reassembly timer expires and the reassembly of the plurality of RRC fragmentation entities is not completed, stopping the reassembly of the plurality of RRC fragmentation entities.

Wherein the receiver may discard the corresponding RRC message after stopping the re-assembling of the plurality of RRC segmentation entities. Further, if the RRC message is segmented by the RRC segmentation function of the new protocol layer entity, the new protocol layer entity may also be released.

The above embodiments describe the data transmission method of the present invention, and the communication device of the present invention will be described with reference to the embodiments and the drawings.

Referring to fig. 3, an embodiment of the present invention further provides a communication device 30, where the communication device 30 is a sender, and the communication device 30 may be any one of a terminal and a network device, and the communication device 30 may include:

a generating module 31, configured to generate a plurality of RRC segmentation entities; each of the plurality of RRC segment entities carries a part of data content in an RRC message generated by the communication device, and all data content in the RRC message is carried by the plurality of RRC segment entities;

a sending module 32, configured to send the multiple RRC segmentation entities to a communication device receiver.

In the embodiment of the invention, the segmentation of the RRC message can be realized, so that the PDCP SDU can be adapted when the RRC message is overlarge, the requirement on an RRC buffer is reduced, the transmission of the RRC message is completed, and the corresponding communication process is ensured to be carried out smoothly.

In this embodiment of the present invention, optionally, the group packet information of the RRC segmented entities may include reassembly indication information, where the reassembly indication information is used by the communication device receiver to reassemble the multiple RRC segmented entities to obtain a complete RRC message.

Optionally, the reassembly indication information includes at least one of:

segment information, sequence numbers, offset tag values and priority indication information;

wherein the segmentation information is used to indicate the location of the corresponding RRC segmentation entity in the RRC message;

the sequence number is used for indicating the sequence number of the RRC message corresponding to the corresponding RRC segmentation entity;

the offset flag value is used for indicating the offset position of the corresponding RRC segmentation entity in the RRC message;

the priority indication information is used for indicating the recombination priority of the RRC message corresponding to the corresponding RRC segmentation entity.

Optionally, the generating module 31 may include:

a generating unit configured to generate an RRC message;

and the segmentation processing unit is used for carrying out segmentation processing on the RRC message to obtain the plurality of RRC segmentation entities.

Optionally, when there are multiple RRC messages to be processed in a segmented manner, the multiple RRC messages are sequentially processed in a segmented manner according to the preset priorities of the multiple RRC messages.

Referring to fig. 4, an embodiment of the present invention further provides a communication device 40, where the communication device 40 is a receiving party, and the communication device 40 may be any one of a terminal and a network device, and the communication device 40 may include:

a receiving module 41, configured to receive multiple RRC segmentation entities from a sending side of a communication device;

In this embodiment of the present invention, optionally, the group packet information of the RRC segmented entity includes reassembly indication information; the communication device 40 may further include:

and the recombination module is used for recombining the plurality of RRC subsection entities according to the recombination indication information to obtain a complete RRC message.

Optionally, the reassembly indication information includes at least one of:

Optionally, the communication device 40 may further include:

a judging module, configured to judge whether a reassembly timer is overtime when the multiple RRC segmented entities are reassembled;

and the control module is used for controlling the recombination module to stop the recombination of the plurality of RRC segmented entities when the recombination timer is overtime and the recombination of the plurality of RRC segmented entities is not completed.

In addition, an embodiment of the present invention further provides a communication device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the data transmission method embodiment, and can achieve the same technical effect, and is not described herein again to avoid repetition. Optionally, the communication device may be a sender, or a receiver, or may also be a terminal, or a network device.

Specifically, fig. 5 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, where the terminal 500 includes, but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511. Those skilled in the art will appreciate that the terminal configuration shown in fig. 5 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

Optionally, when the terminal 500 is a sender, the processor 510 is configured to generate a plurality of RRC segmentation entities; each RRC segmentation entity in the plurality of RRC segmentation entities carries a part of data content in the RRC message generated by the terminal 500, and all data content in the RRC message is carried by the plurality of RRC segmentation entities;

a radio frequency unit 501, configured to send the multiple RRC segmentation entities to a network device.

Optionally, when the terminal 500 is a receiving side, the radio frequency unit 501 is configured to receive a plurality of RRC segmentation entities from a network device; each RRC segmentation entity in the plurality of RRC segmentation entities carries a part of data content in an RRC message generated by the network device, and all data content in the RRC message is carried by the plurality of RRC segmentation entities.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 501 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 510; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 501 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 502, such as helping the user send and receive e-mails, browse web pages, access streaming media, and the like.

The audio output unit 503 may convert audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into an audio signal and output as sound. Also, the audio output unit 503 may also provide audio output related to a specific function performed by the terminal 500 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.

The input unit 504 is used to receive an audio or video signal. The input Unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042, and the Graphics processor 5041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 506. The image frames processed by the graphic processor 5041 may be stored in the memory 509 (or other storage medium) or transmitted via the radio frequency unit 501 or the network module 502. The microphone 5042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 501 in case of the phone call mode.

The terminal 500 also includes at least one sensor 505, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 5061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 5061 and/or a backlight when the terminal 500 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 505 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 506 is used to display information input by the user or information provided to the user. The Display unit 506 may include a Display panel 5061, and the Display panel 5061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 507 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 507 includes a touch panel 5071 and other input devices 5072. Touch panel 5071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 5071 using a finger, stylus, or any suitable object or attachment). The touch panel 5071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 510, and receives and executes commands sent by the processor 510. In addition, the touch panel 5071 may be implemented in various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 5071, the user input unit 507 may include other input devices 5072. In particular, other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 5071 may be overlaid on the display panel 5061, and when the touch panel 5071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 510 to determine the type of the touch event, and then the processor 510 provides a corresponding visual output on the display panel 5061 according to the type of the touch event. Although in fig. 5, the touch panel 5071 and the display panel 5061 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 5071 and the display panel 5061 may be integrated to implement the input and output functions of the terminal, and is not limited herein.

The interface unit 508 is an interface for connecting an external device to the terminal 500. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 508 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the terminal 500 or may be used to transmit data between the terminal 500 and external devices.

The memory 509 may be used to store software programs as well as various data. The memory 509 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 509 may include high-speed random access memory, and may 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 processor 510 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 509 and calling data stored in the memory 509, thereby performing overall monitoring of the terminal. Processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 510.

The terminal 500 may further include a power supply 511 (e.g., a battery) for supplying power to various components, and preferably, the power supply 511 may be logically connected to the processor 510 through a power management system, so that functions of managing charging, discharging, and power consumption are performed through the power management system.

In addition, the terminal 500 may further include some functional modules that are not shown, and are not described in detail herein.

Specifically, fig. 6 is a schematic diagram of a hardware structure of a network device for implementing various embodiments of the present invention, where the network device 60 includes, but is not limited to: bus 61, transceiver 62, antenna 63, bus interface 64, processor 65, and memory 66.

In this embodiment of the present invention, the network device 60 further includes: a computer program stored on the memory 66 and executable on the processor 65.

Alternatively, when the network device 60 is the sender, the computer program when executed by the processor 65 performs the steps of:

generating a plurality of RRC segmentation entities; each RRC segmentation entity in the plurality of RRC segmentation entities carries a part of data content in an RRC message generated by the network device 60, and all data content in the RRC message is carried by the plurality of RRC segmentation entities; and sending the plurality of RRC segmentation entities to a terminal.

Optionally, when the network device 60 is the recipient, the computer program when executed by the processor 65 implements the steps of:

receiving a plurality of RRC segmentation entities from a terminal; each of the plurality of RRC segmentation entities carries a part of data content in an RRC message generated by the terminal, and all data content in the RRC message is carried by the plurality of RRC segmentation entities.

A transceiver 62 for receiving and transmitting data under the control of a processor 65.

In fig. 6, a bus architecture (represented by bus 61), bus 61 may include any number of interconnected buses and bridges, bus 61 linking together various circuits including one or more processors, represented by processor 65, and memory, represented by memory 66. The bus 61 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 64 provides an interface between the bus 61 and the transceiver 62. The transceiver 62 may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 65 is transmitted over a wireless medium via the antenna 63, and further, the antenna 63 receives the data and transmits the data to the processor 65.

The processor 65 is responsible for managing the bus 61 and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory 66 may be used to store data used by the processor 65 in performing operations.

Alternatively, the processor 65 may be a CPU, ASIC, FPGA or CPLD.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the data transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium is, for example, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A data transmission method is applied to a communication device sender, wherein the communication device sender is one of a terminal and a network device, and the method comprises the following steps:

generating a plurality of radio resource control, RRC, segmentation entities; each RRC segmentation entity in the plurality of RRC segmentation entities carries part of data content in an RRC message generated by the communication equipment sending party, and all data content in the RRC message is carried by the plurality of RRC segmentation entities;

transmitting the plurality of RRC segmentation entities to a communication device receiver;

the group package information of the RRC subsection entities comprises recombination indication information, and the recombination indication information is used for the communication equipment receiving party to recombine the plurality of RRC subsection entities to obtain complete RRC messages;

wherein the reassembly indication information comprises at least one of: segmentation information, offset flag values, and priority indication information;

the segmentation information is used for indicating the position of a corresponding RRC segmentation entity in the RRC message;

2. The method of claim 1, wherein the reassembly indication information further comprises:

a serial number;

wherein, the sequence number is used for indicating the sequence number of the RRC message corresponding to the corresponding RRC segmentation entity.

3. The method of claim 1, wherein generating the plurality of Radio Resource Control (RRC) segmentation entities comprises:

generating an RRC message;

4. The method according to claim 3, wherein when there are multiple RRC messages to be processed in a segmented manner, the multiple RRC messages are sequentially processed in a segmented manner according to the preset priorities of the multiple RRC messages.

5. A data transmission method is applied to a communication equipment receiver, wherein the communication equipment receiver is one of a terminal and a network device, and the method comprises the following steps:

each RRC segmentation entity in the plurality of RRC segmentation entities carries part of data content in an RRC message generated by the communication equipment sending party, and all data content in the RRC message is carried by the plurality of RRC segmentation entities;

wherein, the group package information of the RRC subsection entity comprises recombination indication information; the method further comprises the following steps: according to the recombination indication information, recombining the plurality of RRC subsection entities to obtain a complete RRC message;

6. The method of claim 5, wherein the reassembly indication information further comprises:

a serial number;

7. The method of claim 5, wherein when the plurality of RRC segmentation entities are reassembled, the method further comprises:

judging whether the recombination timer is overtime or not;

8. A communication device, the communication device being a sender, the communication device being one of a terminal and a network device, the communication device comprising:

a sending module, configured to send the plurality of RRC fragmentation entities to a communication device receiver;

9. The communications device of claim 8, wherein the reassembly indication information further comprises: a serial number;

10. A communication device, the communication device being a receiving side, the communication device being one of a terminal and a network device, the communication device comprising:

wherein, the group package information of the RRC subsection entity comprises recombination indication information; the communication device further includes:

the recombination module is used for recombining the plurality of RRC subsection entities according to the recombination indication information to obtain a complete RRC message;

11. A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the computer program, when executed by the processor, implements the steps of the data transmission method according to any one of claims 1 to 7.

12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the data transmission method according to one of claims 1 to 7.