CN109661839B

CN109661839B - Method and terminal device for data processing

Info

Publication number: CN109661839B
Application number: CN201780049134.4A
Authority: CN
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-09-26
Filing date: 2017-09-26
Publication date: 2020-09-25
Anticipated expiration: 2037-09-26
Also published as: WO2019061034A1; CN109661839A

Abstract

A method and terminal device for data processing, the method comprising: the method comprises the steps that a terminal device obtains a threshold value of each RLC layer in a first split radio bearer of the terminal device, wherein the threshold value of each RLC layer is used for indicating an upper limit (210) of data preprocessing quantity of the corresponding RLC layer; and the terminal equipment determines a target cell group (220) for processing data to be sent of the terminal equipment from a plurality of cell groups corresponding to the first split radio bearer according to the threshold value of each RLC layer. The method is beneficial to improving the flexibility of data transmission.

Description

Method and terminal device for data processing

Technical Field

The present embodiment relates to the field of communications, and in particular, to a method and a terminal device for data processing.

Background

When a Data bearer adopts a split bearer Protocol architecture, two or more Radio Link Controls (RLC) are respectively connected below one Packet Data Convergence Protocol (PDCP), each RLC corresponds to a cell group, and when uplink Data of a certain split Radio bearer needs to be transmitted, how a terminal device selects a cell group to perform Data processing is a problem to be solved.

Disclosure of Invention

In view of this, embodiments of the present application provide a method and a terminal device for data processing, which are beneficial to improving flexibility of data transmission.

In a first aspect, a method for data processing is provided, the method comprising: the method comprises the steps that terminal equipment obtains a threshold value of each RLC layer in a first split radio bearer of the terminal equipment, wherein the threshold value of each RLC layer is used for indicating the upper limit of data preprocessing quantity of the corresponding RLC layer; and the terminal equipment determines a target cell group for processing data to be sent of the terminal equipment from a plurality of cell groups corresponding to the first split radio bearer according to the threshold value of each RLC layer.

And determining the cell group for data processing by combining the data preprocessing capacity of each RLC of a certain split radio bearer, which is beneficial to improving the flexibility of data transmission.

Optionally, the PDCP layer of the first split radio bearer connects two RLC layers, a cell group corresponding to one RLC layer may be a master cell group, and a cell group corresponding to the other RLC layer may be a slave cell group, and the PDCP may be located in the master cell group or the slave cell group.

In a possible implementation manner, the determining, by the terminal device, a target cell group for processing data to be sent of the terminal device from a plurality of cell groups corresponding to the first split radio bearer according to the threshold value of each RLC layer includes: and if the threshold values of at least two RLC layers in the first split radio bearer are not 0, the terminal equipment determines the cell groups corresponding to the at least two RLC layers as the target cell group.

In one possible implementation, the at least two RLC layers include a default first RLC layer configured by the network side for transmitting data.

In a possible implementation manner, the multiple RLC layers include a default first RLC layer configured by a network side for transmitting data, and the terminal device determines, according to a threshold value of each RLC layer, a target cell group for processing data to be transmitted of the terminal device from multiple cell groups corresponding to the first split radio bearer, including: and if the threshold values of all the RLC layers except the first RLC layer in the first split radio bearer are 0, the terminal equipment determines the cell group corresponding to the first RLC layer as the target cell group.

In one possible implementation, the method further includes: before the terminal equipment receives the uplink authorization for transmitting the data to be transmitted, the terminal equipment preprocesses at least part of the data to be processed according to the threshold value of at least one RLC layer of the first split radio bearer corresponding to the target cell group.

In a possible implementation manner, the threshold value of a second RLC layer of the at least one RLC layer is not 0, and the method further includes: and the terminal equipment sends a Buffer Status Report (BSR) to a first cell group corresponding to the second RLC layer in the target cell group, wherein the BSR is used for indicating the sum of the data volume of the PDCP layer and the data volume preprocessed by the second RLC layer.

In one possible implementation, the method further includes: and under the condition that the terminal equipment receives the uplink authorization which is sent by the target cell group and used for transmitting the data to be transmitted, the terminal equipment sends the data to be transmitted to the target cell group.

In one possible implementation, the threshold value of each RLC layer in the first split radio bearer is semi-statically configured.

In a second aspect, a terminal device is provided, configured to perform the method of the first aspect or any possible implementation manner of the first aspect. In particular, the terminal device comprises means for performing the method of the first aspect described above or any possible implementation manner of the first aspect.

In a third aspect, a terminal device is provided, which includes: memory, processor, input interface and output interface. The memory, the processor, the input interface and the output interface are connected through a bus system. The memory is configured to store instructions and the processor is configured to execute the instructions stored by the memory for performing the method of the first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, there is provided a computer storage medium storing computer software instructions for executing the method of the first aspect or any possible implementation manner of the first aspect, and containing a program designed for executing the above aspect.

In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect or any of the alternative implementations of the first aspect.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Drawings

Fig. 1 is a schematic diagram illustrating an application scenario according to an embodiment of the present application.

Fig. 2 shows a protocol architecture diagram of split bearer in a dual connectivity scenario.

Fig. 3 shows a schematic block diagram of a method for data processing of an embodiment of the application.

Fig. 4 shows a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 5 shows another schematic block diagram of a terminal device according to an embodiment of the present application.

Detailed Description

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

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), an LTE System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, a New Radio (NR), a future 5G System, or the like.

In particular, the technical solution of the embodiment of the present application may be applied to various communication systems based on a non-orthogonal Multiple Access technology, such as a Sparse Code Multiple Access (SCMA) system, a Low Density Signature (LDS) system, and the like, and certainly the SCMA system and the LDS system may also be called other names in the communication field; further, the technical solution of the embodiment of the present application may be applied to a Multi-Carrier transmission system using a non-Orthogonal multiple access technology, for example, an Orthogonal Frequency Division Multiplexing (OFDM) using a non-Orthogonal multiple access technology, a Filter Bank Multi-Carrier (FBMC), a General Frequency Division Multiplexing (GFDM), a Filtered Orthogonal Frequency Division Multiplexing (F-OFDM) system, and the like.

A terminal device in the embodiments of the present application may refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, and the embodiments of the present application are not limited thereto.

The Network device in this embodiment may be a device for communicating with a terminal device, where the Network device may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in a WCDMA system, an evolved node b (eNB or eNodeB) in an LTE system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network device in a future 5G Network, or a Network device in a future evolved PLMN Network, and the like, and the embodiment of the present application is not limited.

Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present application. The network devices around terminal device 130 in fig. 1 include a primary network device 110 and at least one secondary network device 120. The at least one secondary network device 120 is connected to the primary network device 110, respectively, to form a multi-connection, and is connected to the terminal device 130, respectively, to provide services thereto. Terminal device 130 may establish a connection through primary network device 110 and secondary network device 120 simultaneously. The connection established between the terminal device 130 and the primary network device 110 is a primary connection, and the connection established between the terminal device 130 and the secondary network device 120 is a secondary connection. The control signaling of the terminal device 130 may be transmitted through the main connection, and the data of the terminal device may be transmitted through the main connection and the auxiliary connection simultaneously, or may be transmitted through only the auxiliary connection.

In this embodiment of the present invention, the primary network device may be, for example, a macro base station (macro cell), and the secondary network device may be, for example, a micro cell base station (Microcell), a pico cell base station (Picocell), or a femto cell base station (Femtocell), but the embodiment of the present invention is not limited thereto.

Those skilled in the art understand that two or more RLC entities can be respectively connected below one PDCP entity, and such one bearer can be referred to as a split bearer, i.e., a split bearer. The protocol architecture of split bearer in the dual connectivity scenario will be briefly described with reference to fig. 2. For uplink and downlink, the PDCP is located in a Cell Group (CG), which is an anchor Cell Group (anchor CG), where the CG includes a master Cell Group and an auxiliary Cell Group, and the PDCP can send a PDCP Protocol Data Unit (PDU) to the RLC in the master Cell Group and the auxiliary Cell Group, so that Data transmission can be performed by using two connections, where the Data passes through the RLC of different Cell groups and Media Access Control (MAC), and then reaches a corresponding MAC (Media access control) layer of a terminal (downlink) or a base station (uplink) through an air interface, and finally converges to the PDCP, so that the Data is finally delivered to a higher layer.

In LTE, the upper layer data stays in a PDCP layer after reaching, and when the main cell group or the auxiliary cell group has uplink resource authorization to reach the terminal equipment, the terminal equipment sends the data downwards to the RLC layer of the main cell group or the auxiliary cell group so as to finally send the data to a network side. The processing mode is bad in that the terminal equipment can only send data from the PDCP to the RLC when the uplink resource authorization reaches the terminal equipment, the RLC PDU is generated, and further the MAC PDU is generated, and the requirement on the instantaneous processing capacity of the terminal equipment is high.

In NR, pre-processing (pre-processing) is proposed for this problem, i.e. the terminal device is allowed to send data from PDCP to RLC before the uplink resource grant reaches the terminal device, and RLC PDU is generated, and after the uplink resource grant reaches, MAC PDU is generated, thereby alleviating the instantaneous processing capability requirement for the UE. How to determine the cell group for providing service for the terminal equipment according to the data preprocessing capacity of a plurality of RLC of a certain split bearer, so as to improve the flexibility of data transmission is a problem to be solved.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should also be understood that, in this application, a split radio bearer is taken as one PDCP to connect two RLC, but the embodiment of this application is not limited thereto.

Fig. 3 shows a schematic block diagram of a method 200 for data processing of an embodiment of the application. As shown in fig. 3, the method 200 includes some or all of the following:

s210, the terminal device obtains a threshold value of each RLC layer in the first split radio bearer of the terminal device, where the threshold value of each RLC layer is used to indicate an upper limit of a data preprocessing amount of the corresponding RLC layer.

And S220, the terminal equipment determines a target cell group for processing data to be sent of the terminal equipment from a plurality of cell groups corresponding to the first split radio bearer according to the threshold value of each RLC layer.

Specifically, for a split radio bearer, the network side may configure a threshold value for each RLC of the split radio bearer, where the threshold value may be an upper limit of data preprocessing performed by the RLC, for example, before the terminal device receives an uplink grant for the data of the split radio bearer, the terminal device may send the data of the split radio bearer from the PDCP to the RLC, and the amount of data that can be preprocessed by the RLC at most does not exceed the threshold value configured for the network side by the network side. After the terminal device determines that a certain split radio bearer has uplink data to send, the terminal device may obtain threshold values of multiple RLC of the split radio bearer, and then the terminal device may determine, according to the threshold values of the multiple RLC of the split radio bearer, a cell group for processing the uplink data of the split radio bearer.

Therefore, the method for data processing according to the embodiment of the present application determines the cell group for data processing in combination with the data preprocessing capability of each RLC of a certain split radio bearer, which is beneficial to improving the flexibility of data transmission.

It should be understood that the threshold value of each RLC may be 0 or not, that is, some RLC has data preprocessing capability, and some RLC does not have data preprocessing capability. The RLC with pre-processing capability may receive data for the bearer from the PDCP before the terminal device receives an uplink grant for the bearer.

It should be understood that different RLC under the same split radio bearer may correspond to different cell groups. The target cell group may be one cell group or a plurality of cell groups, which is not limited in this embodiment.

Optionally, in this embodiment of the present application, the determining, by the terminal device, a target cell group for processing data to be sent of the terminal device from a plurality of cell groups corresponding to the first split radio bearer according to the threshold value of each RLC layer includes: and if the threshold values of at least two RLC layers in the first split radio bearer are not 0, the terminal equipment determines the cell groups corresponding to the at least two RLC layers as the target cell group.

Optionally, in this embodiment of the present application, the determining, by the terminal device, a target cell group for processing data to be sent of the terminal device from a plurality of cell groups corresponding to the first split radio bearer according to a threshold value of each RLC layer includes: and if the threshold values of all the RLC layers except the first RLC layer in the first split radio bearer are 0, the terminal equipment determines the cell group corresponding to the first RLC layer as the target cell group.

Specifically, the network device may configure one RLC as a default RLC in advance for a certain split radio bearer, after acquiring threshold values of multiple RLCs of the split radio bearer, the terminal device may first determine whether a threshold value of a non-default RLC of the split radio bearer is 0, and if the threshold values of all non-default RLCs of the split radio bearer are 0, the terminal device may directly determine a cell group corresponding to the default RLC as a target cell group; if there is RLC other than 0 in the non-default RLC of the split radio bearer, the terminal device may determine, as the target cell group, all cell groups corresponding to RLC other than 0 under the split radio bearer. For example, the split bearer1 of the terminal device is connected with 2 RLC: RLC1 and RLC2, when the split bearer1 has uplink data to be transmitted, the terminal device may obtain threshold values of RLC1 and RLC2, and if the RLC1 is a default RLC configured by the network device, the terminal device may first determine whether the threshold value of RLC2 is 0; if the threshold value of the RLC2 is not 0, the terminal device may directly determine the cell group corresponding to the RLC1 as the target cell group, if the threshold value of the RLC2 is not 0, the terminal device may directly determine the cell group corresponding to the RLC2 as the target cell group, and the terminal device may further determine whether the threshold value of the RLC1 is 0, if the threshold value of the RLC2 is not 0, the terminal device may determine the cell groups corresponding to the RLC1 and the RLC2 as the target cell groups, and if the threshold value of the RLC1 is 0, the terminal device may determine the cell group corresponding to the RLC2 as the target cell group.

Optionally, when the terminal device selects a cell group corresponding to at least two RLC layers of the first split radio bearer as the target cell group, the at least two RLC layers may include a default first RLC layer configured by the network side for transmitting data.

Optionally, in an embodiment of the present application, the method further includes: before the terminal equipment receives the uplink authorization for transmitting the data to be transmitted, the terminal equipment preprocesses at least part of the data to be processed according to the threshold value of at least one RLC layer of the first split radio bearer corresponding to the target cell group.

Specifically, after the terminal device determines the target cell group, before the terminal device receives the uplink grant for the split radio bearer, the terminal device may perform preprocessing on the data of the split radio bearer according to the RLC threshold corresponding to the target cell group. For example, the split bearer1 of the terminal device is connected with 2 RLC: RLC1 and RLC 2. The terminal device determines that cell groups respectively corresponding to RLC1 and RLC2 are target cell groups, that is, before receiving uplink authorization for a split radio bearer, the terminal device may send data in PDCP to RLC1 and RLC2 in advance, where the amount of data sent to RLC1 and RLC2 in advance cannot exceed respective threshold values, and if the threshold value of RLC1 is not 0 and the threshold value of RLC2 is 0, the terminal device sends the data of PDCP to RLC2 but to RLC1 in advance; the terminal device determines that the cell group corresponding to the RLC1 is the target cell group, that is, before receiving the uplink grant for the split radio bearer, the terminal device may send data in the PDCP to the RLC1 in advance, where the amount of data sent to the RLC1 in advance cannot exceed a threshold value of the RLC1, if the threshold value of the RLC1 is not 0, the terminal device sends the value of the PDCP to the RLC1 in advance, and if the threshold value of the RLC1 is 0, the terminal device does not pre-process the data of the split radio bearer.

Optionally, in this embodiment of the present application, a threshold value of a second RLC layer in the at least one RLC layer is not 0, and the method further includes: the terminal device sends a Buffer Status Report (BSR) to a first cell group corresponding to the second RLC layer in the target cell group, where the BSR is configured to indicate a sum of a data size of the PDCP layer and a data size preprocessed by the second RLC layer.

Those skilled in the art understand that the BSR is used to provide the serving network with information about how much data the UE has in common exists in the uplink buffer to be transmitted, and once the terminal device determines the target cell group, the terminal device may report the BSR for a certain split bearer to the network in the target cell group. If the target cell group determined by the terminal equipment is a plurality of cell groups, the terminal equipment can report respective corresponding BSR to the plurality of cell groups respectively. For example, the splitbearer 1 of the terminal device is connected with 2 RLC: RLC1 and RLC2, and the threshold values of RLC1 and RLC2 are both non-0, before receiving uplink authorization for data to be sent for the split bearer1, the terminal device has sent data 1 and data 2 in the split bearer1 to RLC1 and RLC2, the terminal device assumes that it is determined that the target cell group includes a cell group corresponding to RLC1 and a cell group corresponding to RLC2, the terminal device can report a BSR to a cell group corresponding to RLC1 to indicate the sum of the current data volume of the RLC and the data volume preprocessed in the RLC1, and the terminal device can also report a BSR to a cell group corresponding to RLC2 to indicate the sum of the current data volume of the PDCP and the data volume preprocessed in the RLC 2.

Optionally, the terminal device may send a BSR to the target cell group through MAC layer signaling.

Optionally, in an embodiment of the present application, the method further includes: and under the condition that the terminal equipment receives the uplink authorization which is sent by the target cell group and used for transmitting the data to be sent, the terminal equipment sends the data to be sent to the target cell group.

Specifically, after the terminal device determines the target cell group, the terminal device may send data to the target cell group according to the uplink grant of the target cell group as long as the terminal device receives the uplink grant sent by the target cell group. For example, the target cell group determined by the terminal device is the cell group corresponding to RLC1 of the split bearer1, and the terminal device may transmit data to the cell group corresponding to RLC1 only for the uplink grant transmitted by the cell group corresponding to RLC1, in other words, the terminal device does not transmit data to the cell groups corresponding to other RLC of the split bearer1, even if the terminal receives the uplink grants transmitted by the cell groups corresponding to other RLC.

Once the terminal device has determined the target cell group, the terminal device may perform some subsequent operations, including but not limited to the following:

performing data preprocessing on the connection where the target cell group is located;

BSR reporting is carried out to the target cell group;

and carrying out data delivery to the target cell group aiming at the uplink authorization of the target cell group.

Optionally, in this embodiment of the present application, the first split radio bearer includes two RLC layers, and the cell groups corresponding to the two RCL layers include a master cell group and a secondary cell group. That is, the first split radio bearer is dual-connection, where one RLC corresponds to the master cell group and the other RLC corresponds to the secondary cell group, and the PDCP of the first split radio bearer may be located in the master cell group or the secondary cell group.

Optionally, in this embodiment of the present application, the threshold value of each RLC layer in the first split radio bearer is configured semi-statically. For example, the network side may configure the threshold value of each RLC layer of a certain split Radio bearer to the terminal device through Radio Resource Control (RRC) signaling.

It should be understood that the interaction between the network device and the terminal device described by the network device and the related characteristics, functions, etc. correspond to the related characteristics, functions of the terminal device. And related matters have been described in detail in the method 100, and are not repeated herein for brevity.

It should also be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Having described the method for data processing according to the embodiment of the present application in detail above, the apparatus for data processing according to the embodiment of the present application will be described below with reference to fig. 4 and 5, and the technical features described in the embodiment of the method are applicable to the following embodiments of the apparatus.

Fig. 4 shows a schematic block diagram of a terminal device 300 of an embodiment of the present application. As shown in fig. 4, the terminal device 300 includes:

an obtaining unit 310, configured to obtain a threshold value of each RLC layer in a first split radio bearer of the terminal device, where the threshold value of each RLC layer is used to indicate an upper limit of a data preprocessing amount of the corresponding RLC layer;

a determining unit 320, configured to determine, according to the threshold value of each RLC layer, a target cell group for processing data to be sent of the terminal device from the multiple cell groups corresponding to the first split radio bearer.

Therefore, the terminal device in the embodiment of the present application determines the cell group for data processing in combination with the data preprocessing capability of each RLC of a certain split radio bearer, which is beneficial to improving the flexibility of data transmission.

Optionally, in this embodiment of the application, the determining unit is specifically configured to: and if the threshold values of at least two RLC layers in the first split radio bearer are not 0, determining the cell groups corresponding to the at least two RLC layers as the target cell group.

Optionally, in this embodiment of the present application, the at least two RLC layers include a default first RLC layer configured by the network side for transmitting data.

Optionally, in this embodiment of the present application, the plurality of RLC layers includes a default first RLC layer configured by the network side and used for transmitting data, and the determining unit is specifically configured to: and if the threshold values of all the RLC layers except the first RLC layer in the first split radio bearer are 0, determining the cell group corresponding to the first RLC layer as the target cell group.

Optionally, in this embodiment of the present application, the terminal device further includes: a first sending unit, configured to, before the terminal device receives an uplink grant for transmitting data to be sent, perform preprocessing on at least part of the data in the data to be processed according to a threshold value of at least one RLC layer of the first split radio bearer corresponding to the target cell group.

Optionally, in this embodiment of the application, a threshold value of a second RLC layer in the at least one RLC layer is not 0, and the terminal device further includes: and a second sending unit, configured to send a buffer status report BSR to a first cell group corresponding to the second RLC layer in the target cell group, where the BSR is used to indicate a sum of a data size of the PDCP layer and a data size preprocessed by the second RLC layer.

Optionally, in this embodiment of the present application, the terminal device further includes: and a third sending unit, configured to send the data to be sent to the target cell group when the terminal device receives the uplink grant, which is sent by the target cell group and used for transmitting the data to be sent.

Optionally, in this embodiment of the present application, the first split radio bearer includes two RLC layers, and the cell groups corresponding to the two RLC layers include a master cell group and a secondary cell group.

Optionally, in this embodiment of the present application, the threshold value of each RLC layer in the first split radio bearer is configured semi-statically.

It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 300 are respectively for implementing the corresponding flow of the terminal device in the method of fig. 3, and are not described herein again for brevity.

As shown in fig. 5, an embodiment of the present application further provides a terminal device 400, where the terminal device 400 may be the terminal device 300 in fig. 4, and can be used to execute the content of the terminal device corresponding to the method 200 in fig. 3. The terminal device 400 includes: an input interface 410, an output interface 420, a processor 430 and a memory 440, the input interface 410, the output interface 420, the processor 430 and the memory 440 may be connected by a bus system. The memory 440 is used to store programs, instructions or code. The processor 430 is configured to execute the program, instructions or code in the memory 440 to control the input interface 410 to receive signals, control the output interface 420 to send signals, and perform the operations of the foregoing method embodiments.

It should be understood that, in the embodiment of the present Application, the Processor 430 may be a Central Processing Unit (CPU), and the Processor 430 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 440 may include both read-only memory and random access memory and provides instructions and data to the processor 430. A portion of memory 440 may also include non-volatile random access memory. For example, memory 440 may also store device type information.

In implementation, the various aspects of the methods described above may be performed by instructions in the form of hardware, integrated logic circuits, or software in processor 430. The contents of the method disclosed in connection with the embodiments of the present application may be directly embodied as a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 440, and the processor 430 reads the information in the memory 440 and implements the content of the above method in combination with its hardware. To avoid repetition, it is not described in detail here.

In a specific embodiment, the determining unit and the obtaining unit of the terminal device 300 may be implemented by the processor 430 in fig. 5, and the first sending unit, the second sending unit, and the third sending unit of the terminal device 300 may be implemented by the output interface 420 in fig. 5.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

This functionality, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for data processing, comprising:

the method comprises the steps that terminal equipment obtains a threshold value of each RLC layer in a first split radio bearer of the terminal equipment, wherein the threshold value of each RLC layer is used for indicating the upper limit of data preprocessing quantity of the corresponding RLC layer;

the determining, by the terminal device, a target cell group for processing data to be sent of the terminal device from a plurality of cell groups corresponding to different RLC layers in the first split radio bearer according to the threshold value of each RLC layer, includes:

if the threshold values of at least two RLC layers in the first split radio bearer are not 0, the terminal equipment determines the cell group corresponding to the at least two RLC layers as the target cell group;

before the terminal equipment receives uplink authorization for transmitting data to be transmitted, the terminal equipment preprocesses at least part of data in the data to be transmitted according to the threshold values of at least two RLC layers of the first split radio bearer corresponding to the target cell group.

2. The method of claim 1, wherein the at least two RLC layers comprise a default first RLC layer configured by a network side for transmitting data.

3. The method of claim 1, wherein the plurality of RLC layers include a default first RLC layer configured by a network side for transmitting data, and wherein the terminal device determines, according to the threshold value of each RLC layer, a target cell group for processing data to be transmitted of the terminal device from a plurality of cell groups corresponding to different RLC layers in the first split radio bearer, further comprising:

and if the threshold values of all RLC layers except the first RLC layer in the first split radio bearer are 0, the terminal equipment determines the cell group corresponding to the first RLC layer as the target cell group.

4. The method of claim 1, wherein a threshold value of a second RLC layer of the at least one RLC layer is not 0, the method further comprising:

and the terminal equipment sends a Buffer Status Report (BSR) to a first cell group corresponding to the second RLC layer in the target cell group, wherein the BSR is used for indicating the sum of the data volume of the PDCP layer and the data volume preprocessed by the second RLC layer.

5. The method according to any one of claims 1 to 3, further comprising:

and under the condition that the terminal equipment receives the uplink authorization which is sent by the target cell group and used for transmitting the data to be transmitted, the terminal equipment sends the data to be transmitted to the target cell group.

6. The method of any of claims 1-3, wherein the first split radio bearer comprises two RLC layers, and wherein the cell groups corresponding to the two RLC layers comprise a master cell group and a secondary cell group.

7. The method of any of claims 1 to 3, wherein the threshold value for each RLC layer in the first split radio bearer is semi-statically configured.

8. A terminal device, characterized in that the terminal device comprises:

an obtaining unit, configured to obtain a threshold value of each RLC layer in a first split radio bearer of the terminal device, where the threshold value of each RLC layer is used to indicate an upper limit of a data preprocessing amount of the corresponding RLC layer;

a determining unit, configured to determine, according to the threshold value of each RLC layer, a target cell group for processing data to be sent of the terminal device from multiple cell groups corresponding to different RLC layers in the first split radio bearer;

the determining unit is specifically configured to determine, if threshold values of at least two RLC layers in the first split radio bearer are not 0, a cell group corresponding to the at least two RLC layers as the target cell group;

the terminal device further includes a first sending unit, configured to, before the terminal device receives an uplink grant for transmitting data to be sent, pre-process at least part of data in the data to be sent according to threshold values of at least two RLC layers of the first split radio bearer corresponding to the target cell group.

9. The terminal device of claim 8, wherein the at least two RLC layers comprise a default first RLC layer configured by a network side for transmitting data.

10. The terminal device of claim 8, wherein the plurality of RLC layers includes a default first RLC layer configured by a network side for transmitting data, and the determining unit is specifically configured to:

and if the threshold values of all RLC layers except the first RLC layer in the first split radio bearer are 0, determining the cell group corresponding to the first RLC layer as the target cell group.

11. The terminal device of claim 8, wherein a threshold value of a second RLC layer of the at least one RLC layer is not 0, and wherein the terminal device further comprises:

and a second sending unit, configured to send a buffer status report BSR to a first cell group corresponding to the second RLC layer in the target cell group, where the BSR is used to indicate a sum of a data size of the PDCP layer and a data size preprocessed by the second RLC layer.

12. The terminal device according to any one of claims 8 to 10, characterized in that the terminal device further comprises:

and a third sending unit, configured to send the data to be sent to the target cell group when the terminal device receives an uplink grant, which is sent by the target cell group and used for transmitting the data to be sent.

13. The terminal device of any of claims 8 to 10, wherein the first split radio bearer comprises two RLC layers, and wherein the cell groups corresponding to the two RLC layers comprise a master cell group and a secondary cell group.

14. A terminal device according to any of claims 8 to 10, wherein the threshold value for each RLC layer in the first split radio bearer is semi-statically configured.