CN109565512B

CN109565512B - Data packet cutting configuration method of wireless link layer and related product

Info

Publication number: CN109565512B
Application number: CN201780050538.5A
Authority: CN
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-05-04
Filing date: 2017-05-04
Publication date: 2021-07-30
Anticipated expiration: 2037-05-04
Also published as: CN109565512A; WO2018201412A1

Abstract

The embodiment of the invention discloses a method for cutting and configuring a data packet of a wireless link layer, which comprises the following steps: the terminal and the base station establish a data radio bearer; the terminal receives a cutting function switch and a configuration criterion which are sent by the base station and configure a radio link layer control protocol (RLC); and the terminal configures the cutting function switch of the RLC, determines whether the configuration criterion is met, and closes the cutting function switch of the RLC if the configuration criterion is met. The embodiment of the invention has the advantage of reducing the time delay.

Description

Data packet cutting configuration method of wireless link layer and related product

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method for configuring and cutting data packets in a wireless link layer and a related product.

Background

A New Radio (NR) is a New issue recently proposed in the 3rd Generation Partnership Project (3 GPP) organization, and is a 5th-Generation (5G) New air interface. As the discussion of the new generation of 5G technologies proceeds further, on the one hand, since communication systems are latter-compatible, new technologies developed later tend to be compatible with technologies that have been previously standardized; on the other hand, there are already a lot of existing designs due to the 4th Generation mobile communication, 4G, Long Term Evolution (LTE).

In the LTE system, a Radio Link Control (RLC) protocol supports concatenation and segmentation, but the concatenation and segmentation process takes a certain time, and for some services with high delay, the QoS requirement of the Service cannot be satisfied.

Disclosure of Invention

Embodiments of the present invention provide a method for configuring and cutting a data packet in a wireless link layer and a related product, so as to reduce a delay of a service with a higher delay in a wireless communication system.

In a first aspect, an embodiment of the present invention provides a method for configuring packet fragmentation in a radio link layer, including: the terminal and the base station establish a data radio bearer; the terminal receives a cutting function switch and a configuration criterion which are sent by the base station and configure a radio link layer control protocol (RLC); and the terminal configures the cutting function switch of the RLC, determines whether the configuration criterion is met, and closes the cutting function switch of the RLC if the configuration criterion is met.

In the first aspect, optionally, the receiving, by the terminal, a cut function switch configured with a radio link layer control protocol RLC sent by the base station includes:

and the terminal receives a Radio Resource Control (RRC) signaling sent by the base station, wherein the RRC signaling comprises an indication domain, and the indication domain is used for indicating the terminal to configure the cutting function switch of the RLC.

In the first aspect, optionally, the configuration criterion is: whether the times that the size of the uplink authorized resource is larger than the threshold value; the determining whether the configuration criteria are met comprises: and the terminal receives the uplink authorized resource of the logic channel allocated by the base station, detects the times that the uplink authorized resource is greater than the threshold value of the threshold value, and determines to accord with the configuration criterion if the times is greater than the threshold value of the times.

In the first aspect, optionally, the method further includes: and the terminal starts a timer, and if the timer reaches a set value, the functional switch is started.

In the first aspect, optionally, the configuration criterion is: whether the size of the uplink authorization resource is larger than the average value of the sizes of the RLC service data units SDU or not; the determining whether the configuration criteria are met comprises: and the terminal receives the uplink authorized resource of the logic channel distributed by the base station, and if the uplink authorized resource is larger than the average value of the sizes of the RLC SDUs, the uplink authorized resource is determined to meet the configuration criterion.

In the first aspect, optionally, the configuration criterion is: whether the received dynamic signaling contains an indication to close the function switch; the determining whether the configuration criteria are met comprises: and the terminal receives a dynamic signaling sent by the base station, and if the dynamic signaling contains an instruction for closing the function switch, the dynamic signaling is determined to meet the configuration criterion.

In the first aspect, optionally, the dynamic signaling includes: a media intervention layer control element MAC CE or downlink control information DCI.

In a second aspect, a terminal is provided, which includes: the system comprises a processing unit and a communication unit, wherein the communication unit is used for establishing a data radio bearer with a base station; the communication unit is also used for receiving a cutting function switch and a configuration criterion which are sent by the base station and configure a radio link layer control protocol (RLC); and the processing unit is used for configuring the cutting function switch of the RLC, determining whether the cutting function switch meets the configuration criterion, and if the cutting function switch meets the configuration criterion, closing the cutting function switch of the RLC.

In the second aspect, optionally, the communication unit is specifically configured to receive a radio resource control RRC signaling sent by the base station, where the RRC signaling includes an indication field, and the indication field is used to indicate the terminal to configure the RLC cut function switch.

In the second aspect, optionally, the configuration criterion is: whether the times that the size of the uplink authorized resource is larger than the threshold value; the determining whether the configuration criteria are met comprises: and the terminal receives the uplink authorized resource of the logic channel allocated by the base station, detects the times that the uplink authorized resource is greater than the threshold value of the threshold value, and determines to accord with the configuration criterion if the times is greater than the threshold value of the times.

In the second aspect, optionally, the processing unit is further configured to start a timer, and if the timer reaches a set value, turn on the function switch.

In the second aspect, optionally, the configuration criterion is: whether the size of the uplink authorization resource is larger than the average value of the sizes of the RLC service data units SDU or not; the determining whether the configuration criteria are met comprises: and the terminal receives the uplink authorized resource of the logic channel distributed by the base station, and if the uplink authorized resource is larger than the average value of the sizes of the RLC SDUs, the uplink authorized resource is determined to meet the configuration criterion.

In the second aspect, optionally, the configuration criterion is: whether the received dynamic signaling contains an indication to close the function switch; the determining whether the configuration criteria are met comprises: and the terminal receives a dynamic signaling sent by the base station, and if the dynamic signaling contains an instruction for closing the function switch, the dynamic signaling is determined to meet the configuration criterion.

In the second aspect, optionally, the dynamic signaling includes: a media intervention layer control element MAC CE or downlink control information DCI.

In a third aspect, an embodiment of the present invention provides a terminal, including one or more processors, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the program includes instructions for executing the steps in any of the methods of the first aspect of the embodiments of the present invention.

In a fourth aspect, the present invention provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform part or all of the steps described in any one of the methods according to the first aspect of the present invention.

In a fifth aspect, the present invention provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps as described in any one of the methods of the first aspect of the embodiments of the present invention. The computer program product may be a software installation package.

It can be seen from the above that, in the embodiment of the present invention, the terminal is configured with the RLC cutting function switch to determine whether the terminal meets the configuration criterion, for example, the terminal closes the RLC cutting function of the logical channel according to the configuration criterion.

Drawings

Reference will now be made in brief to the drawings that are needed in describing embodiments or prior art.

FIG. 1 is a schematic diagram of an exemplary communication system;

FIG. 2 is a diagram of RLC layer concatenation and segmentation for an exemplary communication system;

fig. 3 is a communication diagram of a method for configuring packet fragmentation at a radio link layer according to an embodiment of the present invention;

fig. 4 is a communication diagram of a method for configuring packet fragmentation at a radio link layer according to another embodiment of the present invention;

fig. 5 is a communication diagram illustrating a method for configuring packet fragmentation at a radio link layer according to yet another embodiment of the present invention;

fig. 6 is a communication diagram illustrating a method for configuring packet fragmentation at a radio link layer according to yet another embodiment of the present invention;

fig. 7 is a block diagram illustrating functional units of a terminal according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another terminal according to an embodiment of the present invention.

Detailed Description

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

Referring to fig. 1, fig. 1 is a schematic diagram illustrating a possible network architecture of an exemplary communication system according to an embodiment of the present invention. The example communication system may be a 4G LTE communication system or a 5G NR communication system, and specifically includes a network side device and a terminal, where when the terminal accesses a mobile communication network provided by the network side device, the terminal and the network side device may be communicatively connected through a wireless link, where the communication connection may be a single connection mode, a dual connection mode, or a multiple connection mode, but when the communication connection mode is the single connection mode, the network side device may be an LTE base station or an NR base station (also referred to as a gNB base station), and when the communication mode is the dual connection mode (specifically, the communication mode may be implemented through a carrier aggregation CA technology, or implemented by multiple network side devices), and when the terminal is connected to multiple network side devices, the multiple network side devices may be a main base station MCG and a secondary base station SCG, where data backhaul is performed between the base stations, the main base station may be an LTE base station, the secondary base station may be an LTE base station, or the primary base station may be an NR base station, and the secondary base station may be an NR base station.

In the embodiments of the present invention, the terms "network" and "system" are often used interchangeably, and those skilled in the art can understand the meaning of the terms. The terminal according to the embodiment of the present invention may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), Mobile Stations (MS), terminal devices (terminal device), and the like. For convenience of description, the above-mentioned devices are collectively referred to as a terminal.

Referring to fig. 2, fig. 2 is a schematic diagram illustrating RLC layer concatenation and segmentation of an exemplary communication system, as shown in fig. 2, in an LTE system, there are multiple RLC Service Data Units (SDUs), and for convenience of description, as shown in fig. 2, the multiple SDUs are named as: SDUa, SDUb, and SDUc. When the transmission resource provided by the base station for the terminal is greater than one SDU, the terminal may concatenate multiple SDUs into one RLC Protocol Data Unit (PDU), as shown in fig. 2, the terminal concatenates SDUa, SDUb, and SDUc into one PDU, where the PDU includes: since the size of the transmission resource allocated by the base station to the terminal is limited and cannot include SDUa, SDUb and SDUc, the SDUc, and SDUb 1 need to be cut into SDUc segment1 and SDUc segment2 and SDUc segment1 is concatenated to PDU when the SDUa and SDUb are concatenated.

For the operation of concatenating and slicing RLC SDUs, an operation of assembling an RLC PDU (in which a plurality of RLC SDUs are assembled into an RLC PDU, which may require a concatenation and slicing operation) can be started only after the RLC protocol layer obtains a transmission opportunity (i.e., an authorized resource) notified by a Medium Access Control (MAC) layer.

For both functions (i.e. concatenation and fragmentation), the RLC entity (e.g. a smart terminal including but not limited to a mobile phone, a tablet, a laptop, etc.) is default on, i.e. non-configurable, under any conditions, which may cause delay in some cases, such as when the service is sensitive to delay requirements, and such real-time concatenation and fragmentation may cause delay, resulting in failure to meet the QoS requirements of the delay service when the service is sensitive to delay requirements.

In the NR discussions being standardized, it has been agreed to remove the concatenation function from the RLC layer, the main consideration being to enable pre-processing of RLC PDU packets by the RLC layer, i.e. the RLC layer can start assembling RLC PDUs without being granted resources by the MAC layer being obtained. In this case, once the RLC layer obtains the resource grant of the MAC layer, the assembled RLC PDU can be sent to the MAC layer to be further assembled into a PDU of the MAC layer. It should be noted that the NR RLC still keeps the operation of slicing, and the purpose is to use the granted resources of the MAC layer more fully (i.e. if there are remaining resources, the RLC SDU can also be sliced to fill up the granted resources). The cutting operation for reserving the RLC may also introduce a time delay, for example, the assembled RLC PDU may not completely fill the authorized resource of the MAC layer and needs to be cut again, so a time delay may be generated during the assembly of the RLC PDU, which may not meet the time delay requirement of some delay-sensitive services.

Referring to fig. 3, fig. 3 is a block diagram of a method for configuring a packet segmentation of a radio link layer according to an embodiment of the present invention, where the method is executed by a terminal, and the terminal may specifically be: a smart phone, a tablet computer, a notebook computer, etc. the method is shown in fig. 3, and includes the following steps:

step S300, the terminal and the base station establish a data radio bearer.

Step S301, the terminal receives a cutting function switch and a configuration criterion of the configuration RLC sent by the base station.

And the terminal determines whether the channel quality of the logical channel of the terminal and the base station meets the configuration criterion, and the terminal configures a cutting function switch of the RLC.

The configuration criteria in step S301 may be implemented in various ways, for example, in another preferred implementation of the present invention, the configuration criteria may be configured by the base station to issue the configuration criteria to the terminal through a control signaling when the base station establishes Data Radio Bearers (DRBs) at the terminal.

The implementation method of the RLC configured cutting function switch of the terminal may specifically be: the base station configures the RLC cut function switch through control signaling (RRC signaling), for example, an indication field, such as segmentation-configuration, may be added to the RRC signaling, and the value of the indication field is in a Boolean format, where 1 represents ON and 0 represents OFF, and in actual application, 1 may represent OFF and 0 represents ON. Taking 1 for ON and 0 for OFF as an example, the following can be labeled for RLC AM and UM:

step S302, the terminal configures a cutting function switch of the RLC, determines whether the configuration criterion is met, and closes the cutting function switch of the RLC if the configuration criterion is met.

The technical scheme provided by the invention determines whether the terminal meets the configuration criterion or not by configuring the cutting function switch of the RLC to the terminal, for example, the cutting function of the RLC of the logical channel is closed according to the configuration criterion.

Referring to fig. 4, fig. 4 is a block diagram of a method for configuring and cutting a packet of a radio link layer according to an embodiment of the present invention, where the method is implemented in the technical scenario shown in fig. 1, and both the terminal and the base station support 5G, and the method is executed by the terminal, where the terminal may specifically be: a smart phone, a tablet computer, a notebook computer, etc. the method is shown in fig. 4, and includes the following steps:

step S401, the base station and the terminal establish a data radio bearer.

Step S402, the base station sends down Radio Resource Control (RRC) signaling and configuration conditions to the terminal, wherein the RRC signaling comprises an indication domain, and the indication domain is used for indicating the terminal to configure a cutting function switch of the RLC.

Step S403, the terminal receives the uplink authorized resource of the logical channel allocated by the base station, and the terminal detects the number of times that the uplink authorized resource is greater than the threshold value, and if the number of times is greater than the threshold value, it is determined that the configuration condition is satisfied, and the terminal closes the function switch.

Optionally, after step S403, the method may further include:

if the number of times is larger than the time threshold, starting a timer, if the timer reaches a set value, starting the RLC cutting function (namely starting the function switch), and if the undetermined timer reaches the set value, closing the RLC cutting function. The specific reference of the timer may be set in various ways, for example, in an alternative embodiment of the present invention, the setting value of the timer may be pre-configured by a user. For another example, in another alternative embodiment of the present invention, the setting value of the timer may be adjusted according to the channel condition of the logical channel.

As shown in fig. 4, in the technical solution, the preset condition is configured to be the number of times that the uplink grant resource is greater than the threshold, and the number of times is greater than the number of times threshold, so as to implement the RLC segmentation function shutdown, and the RLC segmentation function shutdown is reduced to reduce the time delay according to the condition that the uplink grant resource is greater (i.e., the logical channel condition is better). The principle of the technical scheme is that, in the case of a large uplink grant resource, the condition of the logical channel is generally good, at this time, although the uplink grant resource cannot be filled up by closing the RLC cutting function, because the condition of the logical channel is good, it is necessary to discard some allocated uplink grant resources to reduce the time delay, and the influence on the service is very small, whereas, in the case of a small uplink grant resource, the uplink grant resource is very limited, all uplink grant resources need to be utilized as much as possible, at this time, the RLC PDU needs to be filled up as much as possible by opening the RLC cutting function, at this time, the uplink grant resource is fully utilized, but the time delay is increased.

Referring to fig. 5, fig. 5 is a block diagram of a method for configuring and cutting a packet of a radio link layer according to an embodiment of the present invention, where the method is implemented in the technical scenario shown in fig. 1, and both the terminal and the base station support 5G, and the method is executed by the terminal, where the terminal may specifically be: in the method of the smart phone, tablet computer, notebook computer, etc., as shown in fig. 5, the terminal pre-configures the RLC cut function switch and pre-configures the configuration conditions, and the method includes the following steps:

step S501, the base station and the terminal establish a data radio bearer.

Step S502, the base station sends the RRC signaling and the configuration condition to the terminal, wherein the RRC signaling comprises an indication domain, and the indication domain is used for indicating the terminal to configure a cutting function switch of the RLC.

Step S503, the terminal receives the uplink authorized resource of the logical channel distributed by the base station, the terminal detects that the uplink authorized resource is larger than the average value of the RLC SDU size of the logical channel, the terminal determines that the configuration condition is met, and the terminal closes the RLC cutting function.

As shown in fig. 5, the technical solution detects whether the uplink grant resource is larger than the average value of the sizes of the RLC SDUs, and when the uplink grant resource is larger than the average value of the sizes of the RLC SDUs, the RLC cutting function is turned off.

Referring to fig. 6, fig. 6 is a block diagram of a method for configuring and cutting a packet of a radio link layer according to an embodiment of the present invention, where the method is implemented in the technical scenario shown in fig. 1, and both the terminal and the base station support 5G, and the method is executed by the terminal, where the terminal may specifically be: in the method of the smart phone, tablet computer, notebook computer, etc., as shown in fig. 6, the terminal pre-configures the RLC cut function switch and pre-configures the configuration conditions, and the method includes the following steps:

step S601, the base station and the terminal establish a data radio bearer.

Step S602, the base station sends the RRC signaling and the configuration condition to the terminal, wherein the RRC signaling comprises an indication domain, and the indication domain is used for indicating the terminal to configure a cutting function switch of the RLC.

Step S603, the terminal receives a dynamic signaling sent by the base station, where the dynamic signaling includes an indication of whether the RLC cutting function is turned off, and if the indication indicates that the function switch is turned off, the terminal turns off the function switch.

The dynamic signaling may specifically be: media Access Control Element (MAC CE) or Downlink Control Information (DCI) signaling. The indication may be a newly added indication field.

As shown in fig. 6, the technical solution realizes the closing of the RLC cutting function through the control signaling sent by the base station to the terminal, and after the RLC cutting function is closed, has the advantage of reducing the time delay.

Referring to fig. 7, fig. 7 provides a terminal 70, characterized in that the terminal comprises: a processing unit 701 and a communication unit 702,

a communication unit 702, configured to establish a data radio bearer with a base station;

a communication unit 702, further configured to receive a cut function switch and a configuration criterion, which are sent by the base station and configure a radio link layer control protocol RLC;

a processing unit 701, configured to configure the RLC cut function switch, determine whether a configuration criterion is met, and if so, close the RLC cut function switch.

Optionally, the communication unit 701 is specifically configured to receive a radio resource control RRC signaling sent by the base station, where the RRC signaling includes an indication field, and the indication field is used to indicate the terminal to configure the RLC cut function switch.

Optionally, the configuration criterion is: whether the times that the size of the uplink authorized resource is larger than the threshold value;

the determining whether the configuration criteria are met comprises: and the terminal receives the uplink authorized resource of the logic channel allocated by the base station, detects the times that the uplink authorized resource is greater than the threshold value of the threshold value, and determines to accord with the configuration criterion if the times is greater than the threshold value of the times.

Optionally, the processing unit is further configured to start a timer, and if the timer reaches a set value, turn on the function switch.

Optionally, the configuration criterion is: whether the size of the uplink authorization resource is larger than the average value of the sizes of the RLC service data units SDU or not;

the determining whether the configuration criteria are met comprises: and the terminal receives the uplink authorized resource of the logic channel distributed by the base station, and if the uplink authorized resource is larger than the average value of the sizes of the RLC SDUs, the uplink authorized resource is determined to meet the configuration criterion.

Optionally, the configuration criterion is: whether the received dynamic signaling contains an indication to close the function switch;

the determining whether the configuration criteria are met comprises: and the terminal receives a dynamic signaling sent by the base station, and if the dynamic signaling contains an instruction for closing the function switch, the dynamic signaling is determined to meet the configuration criterion.

Optionally, the dynamic signaling includes: a media intervention layer control element MAC CE or downlink control information DCI.

The above-mentioned embodiments of the present invention have been introduced mainly from the perspective of interaction between network elements. It is understood that, in order to implement the above functions, the terminal and the network side device include hardware structures and/or software modules for executing the respective functions. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software, with the exemplary elements and algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. 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 invention.

The terminal and the network side device may be divided according to the above method examples, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit may be implemented in the form of hardware, or may be implemented in the form of a software program module. It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

In case of integrated units, fig. 8 shows a block diagram of a possible functional unit composition of the terminal involved in the above embodiments. The terminal 800 includes: a processing unit 802 and a communication unit 803. Processing unit 802 is configured to control and manage actions of the terminal, e.g., processing unit 802 is configured to support the terminal to perform step 302 in fig. 3 or other processes for the techniques described herein. The communication unit 803 is used to support communication between the terminal and other devices, for example, to perform steps S300-S301 as shown in fig. 3. The terminal may further include a storage unit 801 for storing program codes and data of the terminal.

The processing unit 802 may be a processor or a controller, and may be, for example, a CPU, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication unit 803 may be a transceiver, a transmitting and receiving circuit, etc., and the storage unit 801 may be a memory.

When the processing unit 802 is a processor, the communication unit 803 is a communication interface or an antenna, and the storage unit 801 is a memory, the terminal according to the embodiment of the present invention may be the terminal shown in fig. 7.

As shown in fig. 9, for convenience of description, only the parts related to the embodiment of the present invention are shown, and details of the specific technology are not disclosed, please refer to the method part of the embodiment of the present invention. The terminal may be any terminal device including a mobile phone, a tablet computer, a PDA (personal digital Assistant), a POS (Point of Sales), a vehicle-mounted computer, etc., taking the terminal as the mobile phone as an example:

fig. 9 is a block diagram showing a partial structure of a mobile phone related to a terminal provided by an embodiment of the present invention. Referring to fig. 9, the handset includes: a Radio Frequency (RF) circuit 910, a memory 920, an input unit 930, a display unit 940, a sensor 950, an audio circuit 960, a Wireless Fidelity (WiFi) module 970, a processor 980, and a power supply 990. Those skilled in the art will appreciate that the handset configuration shown in fig. 9 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile phone in detail with reference to fig. 9:

RF circuitry 910 may be used for the reception and transmission of information. In general, the RF circuit 910 includes, but is not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuit 910 may also communicate with networks and other devices via wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like.

The memory 920 may be used to store software programs and modules, and the processor 980 may execute various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 920. The memory 920 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the mobile phone, and the like. Further, the memory 920 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 input unit 930 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 930 may include a fingerprint recognition module 931 and other input devices 932. Fingerprint identification module 931, can gather the fingerprint data of user above it. The input unit 930 may include other input devices 932 in addition to the fingerprint recognition module 931. In particular, other input devices 932 may include, but are not limited to, one or more of a touch screen, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 940 may be used to display information input by the user or information provided to the user and various menus of the mobile phone. The Display unit 940 may include a Display screen 941, and optionally, the Display screen 941 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Although in fig. 9, the fingerprint recognition module 931 and the display screen 941 are shown as two separate components to implement the input and output functions of the mobile phone, in some embodiments, the fingerprint recognition module 931 and the display screen 941 may be integrated to implement the input and output functions of the mobile phone.

The handset may also include at least one sensor 950, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display screen 941 according to the brightness of ambient light, and the proximity sensor may turn off the display screen 941 and/or the backlight when the mobile phone 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), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

Audio circuitry 960, speaker 961, microphone 962 may provide an audio interface between a user and a cell phone. The audio circuit 960 may transmit the electrical signal converted from the received audio data to the speaker 961, and the audio signal is converted by the speaker 961 to be played; on the other hand, the microphone 962 converts the collected sound signal into an electrical signal, converts the electrical signal into audio data after being received by the audio circuit 960, and then processes the audio data by the audio data playing processor 980, and then sends the audio data to, for example, another mobile phone through the RF circuit 910, or plays the audio data to the memory 920 for further processing.

WiFi belongs to short-distance wireless transmission technology, and the mobile phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 970, and provides wireless broadband Internet access for the user. Although fig. 9 shows the WiFi module 970, it is understood that it does not belong to the essential constitution of the handset, and can be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 980 is a control center of the mobile phone, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 920 and calling data stored in the memory 920, thereby integrally monitoring the mobile phone. Alternatively, processor 980 may include one or more processing units; preferably, the processor 980 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 980.

The handset also includes a power supply 990 (e.g., a battery) for supplying power to the various components, which may preferably be logically connected to the processor 980 via a power management system, thereby providing management of charging, discharging, and power consumption via the power management system.

Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which are not described herein.

In the embodiments shown in fig. 3, 4, 5, and 6, the flow of the terminal side in each step method may be implemented based on the structure of the mobile phone.

In the embodiments shown in fig. 7 and 8, the functions of the units can be implemented based on the structure of the mobile phone.

An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program enables a computer to perform some or all of the steps described in the terminal in the above method embodiment.

Embodiments of the present invention also provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps described in the terminal in the above method embodiments. The computer program product may be a software installation package.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware or may be embodied in software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may reside as discrete components in an access network device, a target network device, or a core network device.

Those skilled in the art will appreciate that in one or more of the examples described above, the functionality described in embodiments of the invention may be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the embodiments of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the embodiments of the present invention.

Claims

1. A method for configuring packet fragmentation in a radio link layer, comprising:

a terminal and a base station establish a data radio bearer, wherein the terminal is a terminal in an NR system;

the terminal receives a cutting function switch and a configuration criterion which are sent by the base station and configure a radio link layer control protocol (RLC); wherein the configuration criterion is: whether the times that the size of the uplink authorized resource is larger than the threshold value; or, the configuration criterion is: whether the size of the uplink authorization resource is larger than the average value of the sizes of the RLC service data units SDU or not;

when the configuration criterion is that whether the number of times that the size of the uplink authorized resource is larger than a threshold value is larger than a number threshold value or not, the terminal receives the uplink authorized resource of the logic channel allocated by the base station, detects the number of times that the uplink authorized resource is larger than the threshold value, and if the number of times is larger than the number threshold value, the terminal is determined to accord with the configuration criterion;

the terminal starts a timer, and if the timer reaches a set value, a cutting function switch is started; and if the timer does not reach the set value, closing the cutting function switch.

2. The method of claim 1, wherein the terminal receives a cut function switch configured with a radio link layer control protocol (RLC) and sent by the base station, and comprises:

3. The method according to claim 1 or 2, characterized in that the method further comprises:

when the configuration criterion is that whether the size of the uplink authorized resource is larger than the average value of the sizes of RLC service data units SDUs, the terminal receives the uplink authorized resource of the logic channel distributed by the base station; and if the uplink authorized resource is larger than the average value of the sizes of the RLC SDUs, determining that the configuration criterion is met.

4. A terminal, characterized in that the terminal comprises: a processing unit and a communication unit, wherein,

the communication unit is used for establishing a data radio bearer with a base station, and the terminal is a terminal in an NR system;

the communication unit is also used for receiving a cutting function switch and a configuration criterion which are sent by the base station and configure a radio link layer control protocol (RLC); wherein the configuration criterion is: whether the times that the size of the uplink authorized resource is larger than the threshold value; or, the configuration criterion is: whether the size of the uplink authorization resource is larger than the average value of the sizes of the RLC service data units SDU or not;

the processing unit is configured to, when the configuration criterion is that whether the number of times that the size of the uplink grant resource is greater than a threshold value is greater than a number-of-times threshold value, receive, by the terminal, the uplink grant resource of the logical channel allocated by the base station, detect the number of times that the uplink grant resource is greater than the threshold value, and determine that the configuration criterion is met if the number of times is greater than the number-of-times threshold value;

the processing unit is used for starting a timer, and if the timer reaches a set value, a cutting function switch is started; and if the timer does not reach the set value, closing the cutting function switch.

5. The terminal of claim 4, wherein the processing unit is further configured to,

the communication unit is specifically configured to receive a radio resource control RRC signaling sent by the base station, where the RRC signaling includes an indication field, and the indication field is used to indicate the terminal to configure the RLC cut function switch.

6. A terminal according to claim 4 or 5,

the processing unit is further configured to receive, by the terminal, the uplink grant resource of the logical channel allocated by the base station when the configuration criterion is that whether the size of the uplink grant resource is larger than an average value of sizes of RLC service data units SDU; and if the uplink authorized resource is larger than the average value of the sizes of the RLC SDUs, determining that the configuration criterion is met.

7. A terminal comprising one or more processors, memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the one or more processors, the programs comprising instructions for performing the steps in the method of any of claims 1-3.

8. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-3.

9. A computer program product, characterized in that the computer program product comprises a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform the method according to any of claims 1-3.