CN110311751B

CN110311751B - Data sending method and terminal

Info

Publication number: CN110311751B
Application number: CN201910340575.0A
Authority: CN
Inventors: 刘旭
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2021-11-30
Anticipated expiration: 2039-04-25
Also published as: CN110311751A

Abstract

The invention provides a data sending method and a terminal. A packet data convergence protocol PDCP entity of the terminal is associated with N radio link control RLC entities, wherein N is an integer greater than 1; under the condition that the data copying function of the PDCP entity is detected to be in a closed state and the data volume sent by the first RLC entity is smaller than the data sending threshold of the first RLC entity, determining whether to start the data copying function according to a target condition set; under the condition that the data copying function is determined to be started, the PDCP Protocol Data Units (PDU) are copied, N copied PDCP PDUs are respectively sent to N RLC entities, and each RLC entity receives one PDCP PDU. The invention can improve the flexibility of the transmission of the PDCP PDU when the terminal detects that the data copying function of the PDCP entity is in a closed state and the data quantity sent by the first RLC entity is less than the data sending threshold of the first RLC entity.

Description

Data sending method and terminal

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a data sending method and a terminal.

Background

For a Packet Data Convergence Protocol (PDCP) entity associated with at least two Radio Link Control (RLC) entities:

if the PDCP entity is configured with a Data copy function and the Data copy function is activated, a Data Protocol Data Unit (PDU) of the PDCP entity may be copied and Data PDUs may be sent to at least two RLC entities associated therewith;

if the PDCP entity is not configured with the data copy function or the data copy function is deactivated, the PDCP PDU can be transmitted only on one RLC.

At present, the data copy function of the PDCP entity is configured by the network side device, and if the network side device does not activate or deactivate the data copy function, the PDCP PDU can only be transmitted on one RLC, and the flexibility of PDCP PDU transmission is low.

Disclosure of Invention

Embodiments of the present invention provide a data sending method and a terminal, so as to solve the problem in the prior art that the flexibility of PDCP PDU transmission is low if a network side device does not activate or deactivate a data copy function.

In order to solve the problems, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a data sending method, which is applied to a terminal, where a packet data convergence protocol PDCP entity of the terminal is associated with N radio link control RLC entities, where N is an integer greater than 1; the method comprises the following steps:

under the condition that the data copying function of the PDCP entity is detected to be in a closed state and the data volume sent by the first RLC entity is smaller than the data sending threshold of the first RLC entity, determining whether to start the data copying function according to a target condition set;

under the condition that the data copying function is determined to be started, copying a PDCP protocol data unit PDU, respectively sending N copied PDCP PDUs to N RLC entities, and receiving one PDCP PDU by each RLC entity;

wherein the first RLC entity is: and the RLC entity receiving the PDCP PDU from the N RLC entities under the condition that the data copying function is in a closed state.

In a second aspect, an embodiment of the present invention further provides a terminal, where a packet data convergence protocol PDCP entity of the terminal is associated with N radio link control RLC entities, where N is an integer greater than 1; the terminal includes:

a determining module, configured to determine whether to start a data copy function according to a target condition set when it is detected that the data copy function of the PDCP entity is in a closed state and a data amount to be sent by a first RLC entity is smaller than a data sending threshold of the first RLC entity;

a sending module, configured to copy a PDCP protocol data unit PDU under the condition that it is determined that the data copy function is started, and send N copied PDCP PDUs to N RLC entities, where each RLC entity receives one PDCP PDU;

In a third aspect, an embodiment of the present invention further provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and being executable on the processor, and when the computer program is executed by the processor, the method implements the steps of the data transmission method described above.

In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when being executed by a processor, the computer program implements the steps of the data transmission method described above.

In the embodiment of the present invention, when it is detected that the data copy function of the PDCP entity is in a closed state and the amount of data to be sent by the first RLC entity is smaller than the data sending threshold of the first RLC entity, the terminal may autonomously determine whether to start the data copy function. Thus, under the condition that the data copying function is determined to be started, the PDCP Protocol Data Units (PDU) are copied, N copied PDCP PDUs are respectively sent to N RLC entities, and each RLC entity receives one PDCP PDU, so that the condition that the PDCP PDUs can only be sent to one RLC entity can be reduced, and the flexibility of the transmission of the PDCP PDUs can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic diagram of a bearer provided by an embodiment of the present invention;

fig. 2 is a flowchart of a data transmission method according to an embodiment of the present invention;

fig. 3 is a second flowchart of a data transmission method according to an embodiment of the present invention;

fig. 4 is one of the structural diagrams of a terminal provided in the embodiment of the present invention;

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

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first," "second," and the like in this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The data transmission method of the embodiment of the invention can be applied to a terminal, wherein a PDCP entity of the terminal is associated with N RLC entities, and N is an integer greater than 1.

In the embodiment of the present invention, the terminal may also be referred to as a User Equipment (UE). In practical applications, the terminal may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or the like.

For convenience of understanding, some contents related to the embodiments of the present invention are explained below:

at the initial stage of network deployment of a fifth-Generation (5th-Generation, 5G) Mobile communication network, an operator may adopt a scheme of Evolved Universal Mobile Telecommunications System Terrestrial Radio Access New Radio Access + New Radio Dual Connectivity, EUTRA + New Radio Dual Connectivity, EN-DC, in consideration of cost and technology iteration, where a Master Cell Group (MCG) Master Cell is an existing fourth-Generation (4h-Generation, 4G) Cell, and a slave Cell Group (slave Cell Group, SCG) slave Cell is a 5G Cell, that is, a 4G Cell is walked over, and speed is increased by the 5G slave Cell Group to achieve the characteristics of high speed and low time delay of 5G, and the like. That is, although LTE is accessed as a primary cell, 5G features are already supported, and such LTE cell may be regarded as a 5G cell. Hereafter, such cells are collectively referred to as EN-DC cells.

The EN-DC cell identification method is determined based on the support Information configured in the System Information (System Information)2 by the network side. The SCG is configured in a connected state in such a way that a 5G SCG is configured for the terminal through a Radio Resource Control (RRC) reconfiguration message of the 4G cell under the requirement of throughput or delay.

In the EN-DC case, there are 3 bearer types: MCG bearers, SCG bearers, split (Spilt) bearers. For EN-DC, as shown in fig. 1, Long Term Evolution (LTE) PDCP or New Radio interface (NR) PDCP may be used for MCG bearers, but only NR PDCP may be used for SCG bearers and Spilt bearers. In fig. 1, Medium Access Control (MAC).

For the Spilt bearer, NR PDCP can use E-UTRA RLC and NR RLC, which is the case when the network configures two RLC for the data bearer. Currently, the PDCP protocol defines this case:

if the data replication function (PDCP Duplication) of the PDCP is activated, replicating PDCP data PDUs and transmitting the data PDUs to two associated RLC entities; otherwise, whether the PDCP Data volume and the RLC Data volume to be transmitted are larger than or equal to an uplink Data separation Threshold (UL Data separation Threshold) is judged.

If the amount of PDCP Data and RLC Data to be transmitted is greater than or equal to UL Data Split Threshold, transmitting PDCP PDUs to a Primary (Primary) RLC entity or a Secondary (Secondary) RLC entity; otherwise, sending the PDCP PDU to the Primary RLC entity.

As can be seen from the above, the Spilt bearer in an EN-DC cell may be associated with two RLC, E-UTRA RLC, NR RLC. This configuration is configured through an RRC reconfiguration message. Such a split bearer is only applicable to data bearers. When the network side is configured with the PDCP Duplication active, PDCP PDUs can be duplicated and transmitted on two associated RLC entities. However, when the network side does not configure the PDCP Duplication or the PDCP Duplication is deactivated, the PDCP PDU can be transmitted only on one RLC, i.e. either the Primary RLC or the Secondary RLC. As can be seen, in the prior art, when the PDCP entity is associated with two RLC entities, if the PDCP entity is in the off state, one of the two RLC entities has data to transmit and the other RLC entity has no data to transmit.

In the embodiment of the present invention, when detecting that the data copy function of the PDCP entity is in a closed state and the amount of data to be sent by the first RLC entity is smaller than the data sending threshold of the first RLC entity, the terminal may also autonomously determine whether to start the data copy function. Thus, under the condition that the data copying function is determined to be started, the PDCP Protocol Data Units (PDU) are copied, N copied PDCP PDUs are respectively sent to N RLC entities, and each RLC entity receives one PDCP PDU, so that the condition that the PDCP PDUs can only be sent to one RLC entity can be reduced, and the flexibility of the transmission of the PDCP PDUs can be improved.

A data transmission method according to an embodiment of the present invention will be described below.

Referring to fig. 2, fig. 2 is a flowchart of a data transmission method according to an embodiment of the present invention. As shown in fig. 2, the data transmission method may include the steps of:

step 201, determining whether to start the data copy function according to a target condition set when detecting that the data copy function of the PDCP entity is in a closed state and the data amount to be sent by the first RLC entity is smaller than the data sending threshold of the first RLC entity.

In the embodiment of the invention, the PDCP entity of the terminal is configured with a data copying function. Wherein, the data copy function being in the off state can be represented as: in an inactive state or in a deactivated state.

In specific implementation, when detecting that the data copy function is in a closed state, the terminal may determine whether the amount of data to be sent by the first RLC entity is smaller than a data sending threshold of the first RLC entity. Wherein the first RLC entity is: and the RLC entity receiving the PDCP PDU from the N RLC entities under the condition that the data copying function is in a closed state. The amount of data to be transmitted by the first RLC entity may include an amount of data to be transmitted by the PDCP entity (i.e., an amount of data to be received by the first RLC entity) and an amount of data that has been received by the first RLC entity but has not been transmitted.

In the case that the amount of data to be transmitted by the first RLC entity is smaller than the data transmission threshold of the first RLC entity, the terminal may further autonomously determine whether to start the data copy function. Such as: and determining whether to start the data copying function according to the target condition set. Thus, compared with the prior art, the probability of starting the data copying function can be improved, and the flexibility of the transmission of the PDCP PDU can be improved.

In a specific implementation, optionally, the target condition set at least includes:

a first target condition, the first target condition comprising: a local configuration indication initiates the data copy function;

a second target condition, the second target condition comprising: the local configuration indicates that the data copying function is started under the condition that the packet loss rate of the PDCP entity is greater than a first threshold, and the detected packet loss rate of the PDCP entity is greater than the first threshold;

a third target condition, the third target condition comprising: the terminal is accessed into a universal mobile communication system terrestrial radio access network new air interface dual-connection EN-DC cell, and a target cell is not matched with the first RLC entity, the target cell is as follows: and the signal quality value of the LTE cell and the NR cell is larger.

Step 202, under the condition that the data copying function is determined to be started, copying a PDCP protocol data unit PDU, and respectively sending N copies of the PDCP PDUs obtained through copying to N RLC entities, wherein each RLC entity receives one PDCP PDU.

Thus, each RLC entity can receive one identical PDCP PDU, thereby improving reliability of data transmission.

In the data sending method of this embodiment, when it is detected that the data copy function of the PDCP entity is in a closed state and the data amount to be sent by the first RLC entity is smaller than the data sending threshold of the first RLC entity, the terminal may autonomously determine whether to start the data copy function. Thus, under the condition that the data copying function is determined to be started, the PDCP Protocol Data Units (PDU) are copied, N copied PDCP PDUs are respectively sent to N RLC entities, and each RLC entity receives one PDCP PDU, so that the condition that the PDCP PDUs can only be sent to one RLC entity can be reduced, and the flexibility of the transmission of the PDCP PDUs can be improved.

In the embodiment of the invention, the terminal can autonomously determine whether to start the data copying function. In a specific implementation, the terminal may autonomously determine whether to start a data copy function based on local configuration and the like, which is specifically described as follows:

optionally, the determining whether to start the data copying function includes:

judging whether a first condition is met;

under the condition that the first condition is met, determining to start the data copying function according to a target condition set;

wherein the first condition is any one of a set of target conditions.

Therefore, in the embodiment of the present invention, if the terminal satisfies any target condition in the target condition set, it may be determined to start the data copy function.

In practical application, the determining whether the first target condition is satisfied may specifically be:

and detecting whether local configuration indicates that the data copying function is started under the condition that the data copying function of the PDCP entity is detected to be in a closed state and the data volume to be sent by the first RLC entity is smaller than the data sending threshold of the first RLC entity.

In specific implementation, if the local configuration indicates that the data copy function is started when it is detected that the data copy function of the PDCP entity is in a closed state and the amount of data to be sent by the first RLC entity is smaller than the data sending threshold of the first RLC entity, it is determined that the first target condition is satisfied, and the data copy function is started, so that the reliability of data transmission can be improved. Otherwise, sending the PDCP PDU to the first RLC entity.

Judging whether the second target condition is met, which may be specifically expressed as:

detecting whether local configuration indicates that the data copying function is started under the condition that the packet loss rate of a PDCP entity is greater than a first threshold;

if the local configuration indicates that the data copying function is started under the condition that the packet loss rate of the PDCP entity is greater than a first threshold, detecting the packet loss rate of the PDCP entity;

and if the packet loss rate is greater than the first threshold, judging that the first condition is met.

If the packet loss rate is greater than the first threshold, which indicates that the channel difference of the first RLC entity is present, it is determined that a second target condition is satisfied, and the data replication function is started, so that the reliability of data transmission can be improved. Otherwise, the channel of the first RLC entity is good, and the PDCP PDU is continuously sent to the first RLC entity, so that the power consumption and the resource overhead of the terminal can be reduced under the condition of ensuring higher reliability of data transmission.

In addition, if the local configuration does not indicate that the data copying function is started under the condition that the packet loss rate of the PDCP entity is greater than the first threshold, the PDCP PDU is sent to the first RLC entity.

Judging whether the third target condition is met, which can be specifically expressed as:

under the condition that the terminal is accessed into a new air interface double-connection EN-DC cell of a universal mobile communication system terrestrial radio access network, determining a first RLC entity;

determining a cell with a larger signal quality value in an LTE cell and an NR cell as a target cell;

and if the target cell does not match the first RLC entity, determining that the first condition is met.

Since the target cell is a cell with a large signal quality value in the LTE cell and the NR cell, if the target cell is not matched with the first RLC entity, it indicates that the reliability of data transmission by the first RLC entity is low, and therefore, it can be determined that the third target condition is satisfied, the data copying function is started, and the reliability of data transmission can be improved. Otherwise, it indicates that the reliability of data transmission of the first RLC entity is higher, so that the data copy function may not be started, and power consumption and resource overhead of the terminal may be reduced under the condition of ensuring higher reliability of data transmission.

In the embodiment of the present invention, whether the target cell and the first RLC entity are matched may be determined by determining whether the target cell and the first cell corresponding to the first RLC entity are cells of the same type. Specifically, if the target cell and the first cell are cells of the same type, the target cell is matched with the first RLC entity; and if the target cell and the first cell are not the same type of cell, the target cell is not matched with the first RLC entity.

For convenience of understanding, the following example illustrates that, if the first RLC entity is an E-UTRA RLC, and the corresponding cell is an LTE cell, the first RLC entity is matched with the LTE cell and not matched with the NR cell. If the first RLC entity is an NR RLC, it indicates that the corresponding cell is an NR cell, and the first RLC entity is not matched with the LTE cell and is matched with the NR cell.

In addition, it should be noted that, in consideration of the case where both the LTE cell and the NR cell have good or poor signal quality, in this case, the data copy function is activated and not activated, which has little influence on the reliability of data transmission. Therefore, the data copy function may not be activated in consideration of reduction of power consumption and resource overhead of the terminal. Therefore, further, the third target condition may further include: a first signal quality value is greater than a second threshold corresponding to the first signal quality value, a second signal quality value is less than a third threshold corresponding to the second signal quality value, the first signal quality value is a signal quality value of one of the LTE cell and the NR cell, and the second signal quality value is a signal quality value of the other of the LTE cell and the NR cell.

At this time, the terminal needs to determine whether the first signal quality value is greater than the second threshold corresponding to the first signal quality value and whether the second signal quality value is less than the third threshold corresponding to the second signal quality value, in addition to determining whether the target cell is matched with the first RLC entity. And only when the target cell is judged not to be matched with the first RLC entity, the signal quality of one of the LTE cell and the NR cell is better, and the signal quality of the other cell is poorer, the first condition is judged to be met, and the data copying function is started, so that the power consumption of the terminal can be reduced.

It should be noted that, in practical applications, in an implementation manner, after determining whether the first condition is satisfied, the terminal may directly determine whether to start the data copying function according to a determination result. Specifically, if the judgment result is yes, the data copying function is started; and if the judgment result is negative, the data copying function is not started.

In another implementation manner, after determining whether the first condition is satisfied and the determination result is negative, the terminal may further continue to determine whether the second condition is satisfied, and so on, until the terminal satisfies one target condition in the target condition set, start the data replication function, or, the terminal does not satisfy any target condition in the target condition set, and send the PDCP PDU to the first RLC entity.

Optionally, after determining whether the first condition is satisfied, the method further includes:

under the condition that the first condition is not met, judging whether a second condition is met or not;

determining to start the data copying function if the second condition is satisfied;

wherein, in the case that the first condition is the first target condition, the second condition is any one of the target conditions in the set of target conditions except the first condition; in a case where the first condition is not the first target condition, the second condition is any one of the target conditions in the target condition set other than the first target condition and the first condition.

Further, after determining whether the second condition is satisfied, the method further includes:

under the condition that the second condition is not met, judging whether a third condition is met;

determining to start the data copy function if the third condition is satisfied;

wherein, in the case that the first condition is the first target condition, the third condition is any one of the target conditions in the target condition set except for the first condition and the second condition; the third condition is any one of the target conditions in the target condition set other than the first target condition, the first condition, and the second condition if the first condition is not the first target condition.

It should be noted that, in a scenario in which the terminal may perform multiple determinations, if the target condition that is satisfied by the terminal is determined to include the first target condition, the terminal may determine whether the first target condition is satisfied first, and then determine whether other target conditions except the first target condition are satisfied. In addition, for other target conditions except for the first target condition, the sequence of the terminal judgment is not limited by the invention.

For convenience of understanding, referring to fig. 3, as shown in fig. 3, the data transmission method may include the following steps:

step 301, the UE uses only NR PDCP.

The network configures PDCP to associate with both RLC, and the network does not activate PDCP duplicate, when the UE uses NR PDCP, but NR PDCP associates with E-UTRA RLC and NR RLC.

Step 302, detecting whether the data amount to be sent by the first RLC entity is smaller than the data sending threshold of the first RLC entity.

If the Data amount to be transmitted by the first RLC entity (i.e. the PDCP Data amount to be transmitted plus the RLC Data amount) is less than the Data transmission Threshold (i.e. the RLC transmission Threshold) UL Data Split Threshold of the first RLC entity, step 303 is performed. Otherwise, step 304 is performed.

Step 303, judging whether the local is configured with starting PDCP Duplication.

If the result of the determination is yes, step 305 is performed. Otherwise, step 306 is performed.

Step 304, sending the PDCP PDU to the first RLC entity.

Step 305, starting PDCP duplicate, copying PDCP PDU and sending to two RLC entities.

Step 306, starting the PDCP Duplication if the local PDCP packet loss rate is greater than the first threshold.

If yes, go to step 307; otherwise, step 304 is performed.

And step 307, sending and detecting the PDCP packet loss condition.

The terminal sends the PDCP PDU to the first RLC entity and starts the PDCP entity to detect the PDCP packet loss condition.

Step 308, detecting whether the packet loss rate of the PDCP packet is greater than a first threshold.

If so, step 305 is performed, otherwise, step 307 is repeated.

If the packet loss rate per time unit of PDCP is found to be larger than the threshold, the current RLC channel needs to be considered as bad, and the replication of the PDCP PDU is started and sent to two associated RLC. Otherwise, the current RLC channel is considered to be good, and the PDCP PDU is continuously sent on the current RLC.

It should be noted that, if the PDCP packet loss rate is smaller than the first threshold, the terminal further performs other determining steps, such as determining whether the terminal meets a third target condition.

The embodiment of the invention provides a scheme for optimizing terminal communication, which reduces the condition that data is only sent by one RLC under the condition that the PDCP is associated with two RLC. The embodiment of the invention at least has the following improvement points:

when the PDCP entity associates at least two RLC entities, the network does not activate or deactivate PDCP Duplication, and the amount of Data to be transmitted by the first RLC entity is less than UL Data Split Threshold:

1. the terminal can determine whether to enable the PDCP duplexing through local configuration.

2. The terminal can start the PDCP duplicate if the PDCP packet loss exceeds a certain threshold through local configuration.

3. In an actual EN-DC cell, there is a case where an LTE cell is poor and an NR cell is good. In this case, the UE may also adjust whether to start PDCP duplexing according to the signal strength.

The embodiment of the invention at least has the following beneficial effects:

when the network configures the PDCP for the UE and associates two RLC entities, and the network does not activate the PDCP Duplication, the UE can selectively start the PDCP Duplication according to the actual situation (e.g., a local configuration policy), and fully utilize the two RLC entities to transmit data, thereby achieving the effect of optimizing communication.

Referring to fig. 4, fig. 4 is a diagram illustrating a structure of a terminal according to an embodiment of the present invention. The PDCP entity of the terminal is associated with N RLC entities, wherein N is an integer greater than 1. As shown in fig. 4, the terminal 400 includes:

a determining module 401, configured to determine whether to start a data copy function according to a target condition set when it is detected that the data copy function of the PDCP entity is in a closed state and a data amount to be sent by a first RLC entity is smaller than a data sending threshold of the first RLC entity;

a sending module 402, configured to copy a PDCP protocol data unit PDU under the condition that it is determined that the data copying function is started, and send N copied PDCP PDUs to N RLC entities respectively, where each RLC entity receives one PDCP PDU;

Optionally, the target condition set at least includes:

a third target condition, the third target condition comprising: the terminal is accessed into an evolved universal mobile communication system terrestrial radio access new air interface dual-connection EN-DC cell, and a target cell is not matched with the first RLC entity, the target cell is as follows: and the signal quality value of the LTE cell and the NR cell is larger.

Optionally, the determining module 401 includes:

a first determining unit, configured to determine whether a first condition is met when it is detected that a data copy function of the PDCP entity is in a closed state and a data amount to be sent by a first RLC entity is smaller than a data sending threshold of the first RLC entity;

a first determination unit configured to determine to start the data copy function if the first condition is satisfied;

wherein the first condition is any one of a set of target conditions.

Optionally, the determining module 401 further includes:

a second judgment unit configured to judge whether a second condition is satisfied, if the first condition is not satisfied;

the second determining module is used for determining to start the data copying function under the condition that the second condition is met;

Optionally, the determining module 401 further includes:

a third judging unit configured to judge whether a third condition is satisfied in a case where the second condition is not satisfied;

a third determination unit configured to determine to start the data copy function if the third condition is satisfied;

Optionally, the third target condition further includes: a first signal quality value is greater than a second threshold corresponding to the first signal quality value, a second signal quality value is less than a third threshold corresponding to the second signal quality value, the first signal quality value is a signal quality value of one of the LTE cell and the NR cell, and the second signal quality value is a signal quality value of the other of the LTE cell and the NR cell.

The terminal 400 can implement each process in the method embodiment of the present invention and achieve the same beneficial effects, and is not described herein again to avoid repetition.

Referring to fig. 5, fig. 5 is a second structural diagram of a terminal according to a second embodiment of the present invention, where the terminal may be a hardware structural diagram of a terminal for implementing various embodiments of the present invention. The PDCP entity of the terminal is associated with N RLC entities, wherein N is an integer greater than 1. As shown in fig. 5, terminal 500 includes, but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511. Those skilled in the art will appreciate that the terminal configuration shown in fig. 5 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

Wherein, the processor 510 is configured to:

Optionally, the target condition set at least includes:

Optionally, the processor 510 is further configured to:

judging whether a first condition is met;

determining to start the data copying function if the first condition is satisfied;

wherein the first condition is any one of a set of target conditions.

Optionally, the processor 510 is further configured to:

It should be noted that, in this embodiment, the terminal 500 may implement each process in the method embodiment of the present invention and achieve the same beneficial effects, and for avoiding repetition, details are not described here again.

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

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

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

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

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

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

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

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

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

The memory 509 may be used to store software programs as well as various data. The memory 509 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 509 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 510 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 509 and calling data stored in the memory 509, thereby performing overall monitoring of the terminal. Processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 510.

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

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

Preferably, an embodiment of the present invention further provides a terminal, which includes a processor 510, a memory 509, and a computer program that is stored in the memory 509 and can be run on the processor 510, and when the computer program is executed by the processor 510, the computer program implements each process of the above-mentioned data sending method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

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

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

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

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

Claims

1. A data sending method is applied to a terminal and is characterized in that a Packet Data Convergence Protocol (PDCP) entity of the terminal is associated with N Radio Link Control (RLC) entities, wherein N is an integer greater than 1; the method comprises the following steps:

wherein the first RLC entity is: receiving an RLC entity of PDCP PDUs from the N RLC entities under the condition that a data copying function is in a closed state;

wherein the set of target conditions comprises at least:

2. The method of claim 1, wherein determining whether to initiate the data replication function based on the set of target conditions comprises:

judging whether a first condition is met;

wherein the first condition is any one of a set of target conditions.

3. The method of claim 2, wherein after determining whether the first condition is satisfied, the method further comprises:

4. The method of claim 3, wherein after determining whether the second condition is satisfied, the method further comprises:

5. The method of claim 1, wherein the third target condition further comprises: a first signal quality value is greater than a second threshold corresponding to the first signal quality value, a second signal quality value is less than a third threshold corresponding to the second signal quality value, the first signal quality value is a signal quality value of one of the LTE cell and the NR cell, and the second signal quality value is a signal quality value of the other of the LTE cell and the NR cell.

6. A terminal is characterized in that a Packet Data Convergence Protocol (PDCP) entity of the terminal is associated with N Radio Link Control (RLC) entities, wherein N is an integer greater than 1; the terminal includes:

wherein the set of target conditions comprises at least:

7. The terminal of claim 6, wherein the determining module comprises:

a first determining unit, configured to determine to start the data copying function according to a target condition set when the first condition is satisfied;

wherein the first condition is any one of a set of target conditions.

8. The terminal of claim 7, wherein the determining module further comprises:

the second determining module is used for determining to start the data copying function according to the target condition set under the condition that the second condition is met;

9. The terminal of claim 8, wherein the determining module further comprises:

a third determining unit, configured to determine to start the data copying function according to a target condition set when the third condition is satisfied;

10. The terminal of claim 6, wherein the third target condition further comprises: a first signal quality value is greater than a second threshold corresponding to the first signal quality value, a second signal quality value is less than a third threshold corresponding to the second signal quality value, the first signal quality value is a signal quality value of one of the LTE cell and the NR cell, and the second signal quality value is a signal quality value of the other of the LTE cell and the NR cell.

11. A terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of a method of transmission of data according to any one of claims 1 to 5.

12. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, realizes the steps of the method of transmitting data according to any one of claims 1 to 5.