CN117941460A

CN117941460A - Data processing method and device

Info

Publication number: CN117941460A
Application number: CN202180101547.9A
Authority: CN
Inventors: 刘成伟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2024-04-26
Also published as: WO2023028972A1

Abstract

The application provides a data processing method and a device thereof, wherein the method comprises the following steps: the wireless communication device receives a Radio Resource Control (RRC) message from a base station, wherein the RRC message comprises a first configuration field, and the first configuration field is used for indicating to release a first Packet Data Convergence Protocol (PDCP) entity; the wireless communication device suspends the first PDCP entity, the first PDCP entity carrying first data; the wireless communication device transmits the first data to the base station. Therefore, the wireless communication device does not release the first PDCP entity according to the RRC message, so that the packet loss phenomenon of the PDCP layer is avoided, the transmission performance of the system is improved, and the user experience is improved.

Description

Data processing method and device

Technical Field

The present application relates to the field of communications, and more particularly, to a method of data processing and an apparatus thereof.

Background

In the course of wireless communication, a terminal device often undergoes a process of switching a base station or reestablishing a connection with the base station. In the above process, there may be some changes in the network configuration, for example, between different (high-low) versions of protocols, and the target base station for handover may determine that the FullConfig procedure needs to be used according to the above changes, so that the entity configuration of the packet data convergence protocol (PACKET DATA convergence protocol, PDCP) layer may be kept consistent with the target base station, and the user plane data transmission is completed.

However, the FullConfig procedure may cause packet loss of the PDCP layer, affecting the user experience. Therefore, how to improve the performance in the mobility procedure of the wireless communication system becomes a problem to be solved.

Disclosure of Invention

The application provides a data processing method and a device thereof, which avoid the phenomenon of packet loss of a PDCP layer, improve the performance of a wireless resource reconfiguration process and improve the experience of a user without discarding the PDCP entity (including data carried by the PDCP entity) even though a RRC reconfiguration signaling contains FullConfig cells.

In a first aspect, a method for data processing is provided, comprising: the wireless communication device receives a radio resource control (radio resource control, RRC) message from the base station, the RRC message including a first configuration field therein, the first configuration field for indicating to release the first packet data convergence layer protocol (PACKET DATA convergence protocol, PDCP) entity; the wireless communication device suspends the first PDCP entity, the first PDCP entity carrying first data; the wireless communication device transmits the first data to the base station.

Specifically, the RRC message may be an air interface reconfiguration message, where a first configuration field is used to indicate that the first PDCP entity is released, e.g., the first configuration field causes the cell FullConfig to be set to true (true), indicating that the wireless communication device needs to process according to the FullConfig procedure. Wherein the FullConfig procedure includes an operation of releasing the PDCP entity (first PDCP entity), and the PDCP layer of the wireless communication apparatus discards the stored PDCP SDU and PDCP PDU, thereby discarding the first data carried by the first PDCP entity.

Wherein the PDCP entity is located in a PDCP layer, a plurality of PDCP entities may be defined for one terminal device, each PDCP entity carrying data of one radio bearer.

And after receiving the RRC message, the wireless communication device does not release the first PDCP entity, discard the stored PDCP SDU (including the first data) and PDCP PDU according to the FullConfig procedure, but performs a suspension operation on the first PDCP entity, and places the first PDCP entity in a suspension (suspension) state from an active state, so that the first PDCP entity is in a state of suspending data transmission, and does not discard the stored PDCP SDU (including the first data) and PDCP PDU.

For example, after the RRC layer of the wireless communication device receives the RRC message sent by the base station indicating that the RRC message needs to be processed according to the FullConfig procedure, the PDCP entity (first PDCP entity) list that needs to be suspended may be sent to the PDCP layer, and instruct the PDCP layer to suspend the PDCP entity (first PDCP entity).

Based on the above scheme, the wireless communication device receives the RRC message, does not release the first PDCP entity according to the RRC message, discards the data carried by the first PDCP entity, but suspends the first PDCP entity, and retains the first data carried by the first PDCP entity, so that the first data can be transmitted to the base station. The situation that the packet loss phenomenon is caused by that the PDCP entity (including the first data) is discarded due to the fact that the PDCP entity (including the first data) is released when the cell FullConfig of the RRC message is set to be true and the wireless communication device performs the FullConfig process, the transmission performance of the system is improved, and the user experience is improved is avoided.

In one possible implementation, the wireless communication device initiates random access to the base station based on the RRC message.

In one possible implementation, the wireless communication apparatus establishes a PDCP entity set including at least one PDCP entity according to the RRC message.

Based on the above scheme, by establishing the PDCP entity set, preparation can be made for the wireless communication apparatus to transmit the first data to the base station in a subsequent step.

In a possible implementation manner, the RRC message includes information of an evolved packet system bearer identity of the first PDCP entity, wherein in case the random access is successful, the wireless communication device determines a second PDCP entity according to an evolved packet system bearer identity (eps-beareridentiy) of the first PDCP entity, the second PDCP entity belongs to the PDCP entity set, and the second PDCP entity and the first PDCP entity have the same evolved packet system bearer identity; the wireless communication device transferring the first data to the second PDCP entity; the wireless communication device transmits the first data to the base station through the second PDCP entity.

In one possible implementation, the wireless communication device releases the first PDCP entity.

For example, in the event that the wireless communication device initiated the random access of the target cell to the base station successfully, the wireless communication device may send a reconfiguration complete message to the base station, characterizing that the FullConfig procedure has been successfully completed. Then, the wireless communication device may traverse the PDCP entity set to determine the second PDCP entity according to the evolved packet system bearer identity of the first PDCP entity carried in the RRC message. The second PDCP entity belongs to a PDCP entity set (is one PDCP entity in the PDCP entity set), and has the same evolved packet system bearer identity as the first PDCP entity. Then, the first data carried by the first PDCP entity in the suspended state is transferred to the second PDCP entity, and the first data is transmitted to the base station through the second PDCP entity. Finally, since the first data has been transferred from the first PDCP entity to the second PDCP entity and transmitted to the base station, the wireless communication device can release the suspended PDCP entity (the first PDCP entity).

Based on the above scheme, when the wireless communication device initiates the random access of the target cell to the base station successfully, the wireless communication device determines a second PDCP entity with the same evolved packet system bearer identity in the PDCP entity set according to the evolved packet system bearer identity of the first PDCP entity carried by the RRC message, and transfers the first data carried by the suspended first PDCP entity to the second PDCP entity, and sends the first data to the base station through the second PDCP entity. Finally, the suspended first PDCP entity is released. Therefore, after the RRC message is received, the first data carried by the first PDCP entity is not discarded, and the second PDCP entity is used for sending the first data, so that the experience of the user is improved. And finally, releasing the first PDCP entity, so that the PDCP entity can be released due to no data transmission, and if other services can establish corresponding PDCP entities under the condition that the PDCP entity is needed, avoiding the waste of resources.

In one possible implementation, in case of the random access failure, the wireless communication device recovers the first PDCP entity; the wireless communication device transmits the first data to the base station through the first PDCP entity.

In one possible implementation, the wireless communication device releases the PDCP entity set.

For example, in case that the wireless communication apparatus initiates a random access failure of the target cell to the base station, the wireless communication device restores the suspended PDCP entity (first PDCP entity), i.e., sets the state of the PDCP entity (first PDCP entity) from the suspended (active) state to the active (active) state, so that the first PDCP entity can normally transmit data. Since the wireless communication apparatus restores the suspended PDCP entity (first PDCP entity), and thus also restores the first data, the first data can be transmitted to the base station through the restored first PDCP entity.

Further, since the wireless communication apparatus can transmit the first data to the base station through the first PDCP entity, the PDCP entity set can be released.

Based on the above scheme, in case that the wireless communication device initiates the random access failure of the target cell to the base station, the wireless communication device transmits the first data to the base station through the first PDCP entity by recovering the suspended first PDCP entity so that the first PDCP entity can normally transmit the first data. Therefore, the first data carried by the first PDCP entity can be reserved, the first data can be continuously sent to the base station, the phenomenon of data packet loss is avoided, the service data cannot be lost, and the user experience is improved. And finally releasing the PDCP entity set to avoid the waste of resources.

In a second aspect, there is provided an apparatus for data processing, comprising: a transceiver module, configured to receive a radio resource control RRC message from a base station, where the RRC message includes a first configuration field, and the first configuration field is configured to instruct to release a first packet data convergence protocol PDCP entity; a processing module, configured to suspend the first PDCP entity, where the first PDCP entity carries first data; the transceiver module is further configured to send the first data to the base station.

Based on the above schemes, the beneficial effects can be referred to the related description of the first scheme, and for brevity, the disclosure is not repeated here.

In one possible implementation, the processing module is further configured to: and initiating random access to the base station according to the RRC message.

In one possible implementation, the processing module is further configured to: based on the RRC message, a PDCP entity set is established, the PDCP entity set including at least one PDCP entity.

In a possible implementation manner, the RRC message includes information of an evolved packet system bearer identity of the first PDCP entity, where in case the random access is successful, the processing module is further configured to determine a second PDCP entity according to the evolved packet system bearer identity of the first PDCP entity, where the second PDCP entity belongs to the PDCP entity set, and where the second PDCP entity and the first PDCP entity have the same evolved packet system bearer identity; the processing module is further configured to transfer the first data to the second PDCP entity; the transceiver module is further configured to send the first data to the base station through the second PDCP entity.

In one possible implementation, the processing module is further configured to: releasing the first PDCP entity.

In a possible implementation manner, in case of the random access failure, the processing module is further configured to recover the first PDCP entity; the transceiver module is further configured to send the first data to the base station through the first PDCP entity.

In one possible implementation, the processing module is further configured to: releasing the PDCP entity set.

In a third aspect, a communication device is provided that includes a processor. The processor is coupled to the memory and operable to execute instructions in the memory to implement the method of data processing of the first aspect and any one of the possible implementations of the first aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled with the communication interface for inputting and/or outputting information. The information includes at least one of instructions and data.

In one implementation, the communication device is a wireless communication device. When the communication device is a wireless communication device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip or a system of chips configured in a variety of wireless communication devices. When the communication device is a chip or a system-on-chip, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin, or related circuitry, etc., on the chip or system-on-chip. The processor may also be embodied as processing circuitry or logic circuitry.

In another implementation, the communication device is a chip or a system of chips configured in a wireless communication device.

In a fourth aspect, a communication device is provided that includes a processor. The processor is coupled to the memory and operable to execute instructions in the memory to implement the method of data processing of the first aspect and any one of the possible implementations of the first aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled with the communication interface for inputting and/or outputting information. The information includes at least one of instructions and data.

In one implementation, the communication device is a base station. When the communication device is a base station, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip or a system-on-chip. When the communication device is a chip or a system-on-chip, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin, or related circuitry, etc., on the chip or system-on-chip. The processor may also be embodied as processing circuitry or logic circuitry.

In another implementation, the communication device is a chip or a system of chips configured in a base station.

In a fifth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a communication device, causes the communication device to implement the first aspect, and a method of data processing in any possible implementation of the first aspect.

In a sixth aspect, there is provided a computer program product comprising instructions which, when executed by a computer, cause a communications apparatus to implement the method of packet processing provided in the first aspect.

In a seventh aspect, there is provided a chip having stored thereon a computer program which, when executed by a communication device, causes the communication device to implement the first aspect, and a method of data packet processing in any possible implementation of the first aspect.

In an eighth aspect, a communication system is provided, comprising the aforementioned wireless communication device and a base station.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system 100 suitable for use in embodiments of the present application.

Fig. 2 is another schematic diagram of a wireless communication system 200 suitable for use in embodiments of the present application.

Fig. 3 is a schematic diagram of a user plane protocol stack system 300 suitable for use in embodiments of the present application.

Fig. 4 is a schematic diagram of the FullConfig flow.

Fig. 5 is a schematic diagram of a method 500 for data processing according to an embodiment of the present application.

Fig. 6 is a schematic diagram of a method 600 for data processing according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a method 700 for data processing according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device 800 provided by an embodiment of the present application.

Fig. 9 is a schematic block diagram of a communication apparatus 900 provided by an embodiment of the present application.

Fig. 10 is a schematic structural diagram of a simplified wireless communication device according to an embodiment of the present application.

Fig. 11 is a schematic structural diagram of a simplified base station according to an embodiment of the present application.

Detailed Description

The technical scheme of the application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: fifth generation (5th generation,5G) systems or NR (New radio) systems, long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), etc.

Fig. 1 is a schematic diagram of a wireless communication system 100 suitable for use in embodiments of the present application. As shown in fig. 1, the wireless communication system 100 may include at least one network device, such as the network device 111 shown in fig. 1, and the wireless communication system 100 may further include at least one terminal device, such as the terminal device 121 shown in fig. 1, and the terminal device 123. The network device and the terminal device may each be configured with multiple antennas, and the network device and the terminal device may communicate using multiple antenna technology.

When the network device and the terminal device communicate, the network device can manage one or more cells, and an integral number of terminal devices can be arranged in one cell. Alternatively, the network device 111 and the terminal device 121 constitute a single-cell communication system to the terminal device 123, and the cell is denoted as cell #1 without loss of generality. Network device 111 may be a network device in cell #1, or network device 111 may serve a terminal device (e.g., terminal device 121) in cell #1.

A cell is understood to be an area within the coverage of a radio signal of a network device.

Fig. 2 is another schematic diagram of a wireless communication system 200 suitable for use in embodiments of the present application. As shown in fig. 2, the wireless communication system 200 may include a terminal device, such as the terminal device 221 of fig. 2; the wireless communication system 200 may also include a plurality of network devices, such as network device 211 and network device 212 in fig. 2. The terminal device 221 in fig. 2 may communicate with both the network device 221 and the network device 212; alternatively, network device 211 and network device 212 may jointly provide services to terminal device 221.

It should be understood that fig. 1 and 2 are merely exemplary illustrations, and the present application is not limited thereto.

It should be understood that the network device in the above wireless communication system may be any device having a wireless transceiving function. The apparatus includes, but is not limited to: an evolved Node B (eNB), a radio network controller (Radio Network Controller, RNC), a Node B (Node B, NB), a Base station controller (Base Station Controller, BSC), a Base transceiver station (Base Transceiver Station, BTS), a Home Base station (e.g., home evolved NodeB, or Home Node B, HNB), a Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (WIRELESS FIDELITY, WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission Point (transmission Point, TP), or a transmission reception Point (transmission and reception Point, TRP), etc., may also be 5G, e.g., NR, a gNB in a system, or a transmission Point (TRP or TP), one or a group of Base stations (including multiple antenna panels) antenna panels in a 5G system, or may also be network nodes constituting a gNB or a transmission Point, e.g., a baseband Unit (BBU), or a Distributed Unit (DU), etc.

In some deployments, the gNB may include a centralized unit (centralized unit, CU) and DUs. The gNB may also include an active antenna unit (ACTIVE ANTENNA units, AAU for short). The CU implements part of the functionality of the gNB and the DU implements part of the functionality of the gNB. For example, the CU is responsible for handling non-real time protocols and services, implementing the functions of the radio resource control (radio resource control, RRC), packet data convergence layer protocol (PACKET DATA convergence protocol, PDCP) layer. The DU is responsible for handling physical layer protocols and real-time services, and implements functions of a radio link control (radio link control, RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU realizes part of physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer may be eventually changed into or converted from the information of the PHY layer, under this architecture, higher layer signaling, such as RRC layer signaling, may also be considered to be transmitted by the DU or by the du+aau. It is understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (radio access network, RAN), or may be divided into network devices in a Core Network (CN), which the present application is not limited to.

It should also be appreciated that the terminal device in the wireless communication system may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (SELF DRIVING), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (SMART GRID), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), or the like. The embodiment of the application does not limit the application scene.

It should be noted that, in the embodiment of the present application, the base station may be used as a network device, and may provide communication coverage for a specific geographic area through an integrated or external antenna device. One or more terminal devices located within the communication coverage area of the base station may access the base station. One base station may manage one or more cells (cells). Each cell has an identification, also known as a cell identity (CELL IDENTITY, cell ID). From the radio resource point of view, one cell is a combination of downlink radio resources and (optionally) uplink radio resources paired therewith.

The terminal device and the base station should be aware of the predefined configuration of the wireless communication system, including the radio access technologies (radio access technology, RAT) supported by the system, as well as the system-specified radio resource configurations, etc., such as the basic configuration of the frequency bands and carriers of the radio. A carrier is a range of frequencies that meets system specifications. This range of frequencies may be determined by the center frequency of the carrier (denoted carrier frequency) and the bandwidth of the carrier. The predefined configuration of these systems may be determined as part of the standard protocols of the wireless communication system or by the interaction between the terminal device and the base station. The content of the relevant standard protocol may be pre-stored in the memories of the terminal device and the base station or embodied as hardware circuits or software codes of the terminal device and the base station.

In the wireless communication system, the terminal device and the base station support one or more same RATs, such as 5g nr,4g LTE, or RATs of future evolution systems. Specifically, the terminal device and the base station adopt the same air interface parameters, coding scheme, modulation scheme, and the like, and communicate with each other based on radio resources specified by the system.

And, the solution of the present application can be implemented in a chip, and it is necessary to protect a device capable of covering the chip. For example, a communication device is provided for improving communication performance of the communication device. The communication device may be a wireless communication apparatus, or may be a part of a device in a wireless communication apparatus, such as an integrated circuit product including a system chip or a communication chip. The wireless communication device may be a computer device supporting wireless communication functions.

Further, the wireless communication device may be a terminal such as a smart phone or a radio access network device such as a base station. The system-on-chip may also be referred to as a system-on-chip (SoC), or simply as a SoC chip. The communication chip may include a baseband processing chip and a radio frequency integrated circuit. The baseband processing chip is sometimes also referred to as a modem (modem) or baseband chip. Radio frequency integrated circuits are sometimes also referred to as radio frequency transceivers (transceivers) or radio frequency chips. In a physical implementation, some or all of the communication chips may be integrated inside the SoC chip. For example, the baseband processing chip is integrated in the SoC chip, and the radio frequency integrated circuit is not integrated with the SoC chip.

Fig. 3 is a schematic diagram of a user plane protocol stack system 300 suitable for use in embodiments of the present application. As shown in fig. 3, a User Equipment (UE) mainly includes a non-access stratum (NAS) layer, a radio resource control (radio resource control, RRC) layer, a packet data convergence layer protocol (PACKET DATA convergence protocol, PDCP) layer, a radio link control (radio link control, RLC) layer, a medium access control (MEDIA ACCESS control, MAC) layer, and a port physical layer (PHYSICAL LAYER, PHY); the eNB mainly comprises an RRC layer, a PDCP layer, an RLC layer, an MAC layer and a PHY layer; the mobility management entity (mobile MANAGENMENT ENTITY, MME) mainly includes a NAS layer. And the wireless air interface data transmission process is completed through end-to-end peer-to-peer communication.

In order to facilitate understanding of the embodiments of the present application, several terms referred to in the present application will be briefly described below.

1. Service data unit and protocol data unit

The service data units (SERVICE DATA units, SDUs) and the protocol data units (Protocol data unit, PDUs) of the upper layer are in one-to-one correspondence. The data that enters each sub-layer and is not processed is called a Service Data Unit (SDU), and the data that is processed by the sub-layer to form a specific format is called a Protocol Data Unit (PDU). Meanwhile, the PDU formed in the layer is the SDU of the next layer. And sending the data to a designated layer of a receiving end according to the difference of the data of the protocol data units.

2. Radio resource control layer

The radio resource control (radio resource control, RRC) layer controls the communication of UEs and enbs over the radio air interface and the mobility of UEs across cells. LTE is an access network, so RRC is the highest layer in the access layer AS control plane.

The RRC layer mainly contains information provided by the broadcast core network non-access stratum. Is responsible for the broadcasting of network system information to UEs. The system information is typically repeated according to a certain basic law, and the RRC is responsible for performing planning, segmentation and repetition, establishing, re-establishing, maintaining and releasing the RRC connection between the UE and the access network.

3. Packet data convergence protocol layer

A packet data convergence protocol (PACKET DATA convergence protocol, PDCP) layer, responsible for performing IP header compression to reduce the bit traffic that must be transmitted by the radio interface. Belonging to the second layer of the radio interface protocol stack, radio Resource Control (RRC) messages on the control plane are processed. The PDCP sublayer provides signaling transmission service for the upper RRC and realizes encryption and consistency protection of the RRC signaling and decryption and consistency check of the RRC signaling in the opposite direction.

FullConfig flow

The network side in the wireless communication system can process the version (high-low) difference of the protocol in the moving process by using FullConfig flow, or other scenes considered to be unavoidable by the network. In short, fullConfig flows are to keep the bearer of the NAS layer, and for the air interface bearer, release the original bearer and newly establish a new bearer.

Fig. 4 is a schematic diagram of the FullConfig flow. As shown in fig. 4, the bearer processed by FullConfig flows is an air interface bearer, the evolved packet system bearer identifier (envolved PACKET SYSTEM beareridentity, eps-BearerIdentity) corresponding to the E-RAB is kept for the NAS layer user plane bearer, and when the air interface bearer is released and the new flows are processed, the data transmission of eps-BearerIdentity can be resumed.

In the uplink transmission process, in other words, the UE sends a buffer status report (buffer state report, BSR) to the base station, the base station issues resource authorization to the UE according to the scheduling algorithm, and the UE sends data through uplink resources configured by the base station, so as to complete the transmission process. For the application layer data, after reaching the PDCP layer, the PDCP layer may buffer the application data, which is the BSR value of the PDCP layer. Because of more air interface authorization limiting factors and uncertainty, an uplink buffer mechanism of the PDCP layer plays a great role in transmitting data packets.

However, in summary, in the FullConfig scenario, since the PDCP entity needs to be released, the buffered PDCP SDUs and PDCP PDUs need to be discarded at the same time when released. In the process of mobile communication, fullConfig is a commonly occurring process, so that the problem of influencing the service continuity of an application layer due to the discarding of data exists, thereby influencing the experience of a user.

In view of this, the present application provides a data processing method, which can perform a backup for an old PDCP entity including configuration and data buffering of the PDCP entity, without immediately performing a release action with respect to a release procedure in the FullConfig scenario, and then, the RRC layer sends configuration information of the new PDCP entity to the PDCP layer, and the PDCP layer establishes the new entity. As shown in fig. 4, the change in air interface bearers does not affect the non-access stratum bearers E-RAB, eps-BearerIdentity. Thus, the corresponding data radio bearer (data radio bearer, DRB) after the FullConfig procedure can be found through eps-BearerIdentity, so that the buffered data of the backed-up old PDCP entity is forwarded to the newly built PDCP entity, and the newly built PDCP entity is used to complete the transmission of the buffered data.

Fig. 5 is a schematic diagram of a method 500 for data processing according to an embodiment of the application. As shown in fig. 5, the method 500 may include the steps of:

S501, the base station transmits an RRC message to the wireless communication device. Correspondingly, the wireless communication device receives an RRC message from the base station.

For example, the base station may send an RRC message to the wireless communication device, the RRC message including a first configuration field for indicating release of the first PDCP entity, the first PDCP entity carrying the first data.

Specifically, the base station transmits an RRC message, which may be an air interface reconfiguration message, to the wireless communication device, wherein a first configuration field is used to instruct release of the first PDCP entity, e.g., the first configuration field causes the cell FullConfig to be set to true (true), indicating that the wireless communication device needs to process according to the FullConfig procedure. Wherein the FullConfig procedure includes an operation of releasing the PDCP entity (first PDCP entity), and the PDCP layer of the wireless communication apparatus discards the stored PDCP SDU and PDCP PDU, thereby discarding the first data carried by the first PDCP entity.

Wherein the PDCP entity (PDCP ENTITY) is configured by the base station to the wireless communication apparatus, which generates a corresponding PDCP entity based on the configuration information of the PDCP layer transmitted by the base station. The PDCP entity is implemented by means of software, and is located in the PDCP layer in association with a control plane or a user plane. For one terminal device, a plurality of PDCP entities may be defined, each carrying data of one radio bearer.

S502, the wireless communication device suspends the first PDCP entity.

For example, the wireless communication device may suspend the first PDCP entity after receiving the RRC message, i.e., set the first PDCP entity to a suspend (suspend) state.

Specifically, after receiving the RRC message, the wireless communication device does not release the first PDCP entity according to the FullConfig procedure, discards the stored PDCP SDU and PDCP PDU, where the PDCP SDU includes the first data, but performs a suspension operation on the first PDCP entity, so that the first PDCP entity is placed in a suspension (suspension) state from an active state, and thus the first PDCP entity is in a state of suspending data transmission.

For example, after the RRC layer of the wireless communication device receives the RRC message sent by the base station and indicating that the RRC message needs to be processed according to the FullConfig procedure, the RRC layer of the wireless communication device may send a list of PDCP entities (first PDCP entities) that need to be suspended to the PDCP layer and instruct the PDCP layer to suspend the PDCP entities (first PDCP entities).

S503, the wireless communication apparatus transmits the first data to the base station. Correspondingly, the base station receives first data from the wireless communication device.

For example, after receiving the RRC message, the wireless communication device does not discard the first data carried by the first PDCP entity, but transmits the first data to the base station.

Specifically, first, the wireless communication device may establish a PDCP entity set including at least one PDCP entity according to the RRC message. The wireless communication device may then initiate random access of the destination cell to the base station in accordance with the RRC message. Wherein, because the RRC message is an air interface reconfiguration message, the wireless communication device may initiate random access of the target cell to the base station according to configuration information of a random access channel and parameter information of random access included in the RRC message.

In one manner of possible implementation, in the event that the wireless communication device initiates successful random access of the target cell to the base station, the wireless communication device may send a reconfiguration complete message to the base station, characterizing that the FullConfig procedure has been completed successfully. Then, the wireless communication device may traverse the PDCP entity set to determine the second PDCP entity according to an evolved packet system bearer identity (eps-beareridentiy) of the first PDCP entity carried in the RRC message. The second PDCP entity belongs to a PDCP entity set (is one PDCP entity in the PDCP entity set), and has the same evolved packet system bearer identity as the first PDCP entity. Then, the first data carried by the first PDCP entity in the suspended state is transferred to the second PDCP entity, and the first data is transmitted to the base station through the second PDCP entity. Finally, since the first data has been transferred from the first PDCP entity to the second PDCP entity and transmitted to the base station, the wireless communication device can release the suspended PDCP entity (the first PDCP entity).

In another manner that may be implemented, in case that the wireless communication device initiates a random access failure of the target cell to the base station, the wireless communication apparatus restores the suspended PDCP entity (first PDCP entity), i.e., sets the state of the PDCP entity (first PDCP entity) from the suspended (active) state to the active state, so that the first PDCP entity can normally transmit data. Since the wireless communication apparatus restores the suspended PDCP entity (first PDCP entity), and thus also restores the first data, the first data can be transmitted to the base station through the restored first PDCP entity.

It should be understood that in this embodiment, the pdcsdu may carry a normal packet service (PACKET SERVICE, PS) service packet, or may carry an IP multimedia subsystem (IP multimedia subsystem, IMS) signaling packet, which is not limited herein.

Based on the above scheme, the wireless communication device receives the RRC message, does not release the first PDCP entity according to the RRC message, discards the data carried by the first PDCP entity, but suspends the first PDCP entity, retains the first data carried by the first PDCP entity, so that the first data can be sent to the base station, avoiding that the PDCP entity (including the first PDCP entity) needs to be released and the data carried by the PDCP entity (including the first data) is discarded because the PDCP entity (including the first PDCP entity) needs to be released when the FullConfig process is executed in the process of the FullConfig process of the wireless communication device, thereby causing packet loss phenomenon, improving the integrity of data transmission, improving the transmission performance of the system, and improving the user experience. For example, in the case that the pdcsdu carries a common PS service data packet, a transmission control protocol (transmission control protocol, TCP) link-establishment handshake failure can be avoided; under the condition that PDCP SDU bears IMS signaling data packet, the phenomenon of dropped call can be avoided.

In one aspect, when the wireless communication device initiates random access of the target cell to the base station successfully, the wireless communication device determines a second PDCP entity with the same evolved packet system bearer identity in the PDCP entity set according to the evolved packet system bearer identity of the first PDCP entity carried by the RRC message, and transfers first data carried by the suspended first PDCP entity to the second PDCP entity, and sends the first data to the base station through the second PDCP entity. Finally, the suspended first PDCP entity is released. Therefore, after the RRC message is received, the first data carried by the first PDCP entity is not discarded, and the second PDCP entity is used for sending the first data, so that the experience of the user is improved. Finally, the first PDCP entity is released, so that the first PDCP entity can be released due to no data transmission, if other services can establish corresponding PDCP entities under the condition that the PDCP entity is needed, the waste of resources is avoided; on the other hand, in case that the wireless communication device initiates the random access failure of the target cell to the base station, the wireless communication device transmits the first data to the base station through the first PDCP entity by recovering the suspended first PDCP entity so that the first PDCP entity can normally transmit the first data. Therefore, the first data carried by the first PDCP entity can be reserved, the first data can be continuously sent to the base station, the phenomenon of data packet loss is avoided, the service data cannot be lost, and the user experience is improved. And finally releasing the PDCP entity set to avoid the waste of resources.

Fig. 6 is a schematic diagram of a data processing method 600 according to an embodiment of the application. As shown in fig. 6, the method 600 may include the steps of:

s601, the RRC layer of the wireless communication device transmits information indicating to suspend the first PDCP entity to the PDCP layer of the wireless communication device. Correspondingly, the PDCP layer of the wireless communication apparatus receives information indicating to suspend the first PDCP entity from the RRC layer of the wireless communication apparatus.

For example, the RRC layer of the wireless communication device may transmit information indicating to suspend the first PDCP entity to the PDCP layer of the wireless communication device after receiving the RRC message transmitted by the base station. The RRC message includes a first configuration field, where the first configuration field is used to instruct release of the first PDCP entity, and the first PDCP entity carries first data.

Specifically, the RRC message may be an air interface reconfiguration message, where the first configuration field is used to indicate that the first PDCP entity is released, e.g., such that the cell FullConfig is set to true (true), indicating that the wireless communication device needs to process according to the FullConfig procedure. The FullConfig procedure includes an operation of the PDCP layer of the wireless communication apparatus to release the PDCP entity (the first PDCP entity), and the PDCP layer discards the stored PDCP SDU and PDCP PDU, thereby discarding the first data carried by the first PDCP entity.

However, the RRC layer of the wireless communication device does not transmit information indicating to release the first PDCP entity to the PDCP layer of the wireless communication device, but transmits information indicating to suspend the first PDCP entity to the PDCP layer of the wireless communication device, such that the PDCP layer retains the first PDCP entity and the first data it carries.

S602, the PDCP layer of the wireless communication apparatus suspends the first PDCP entity.

For example, the PDCP layer of the wireless communication device may suspend the first PDCP entity after receiving the RRC message, i.e., set the first PDCP entity to a suspended (suspend) state.

Specifically, after receiving the RRC message, the PDCP layer of the wireless communication device does not release the first PDCP entity according to the FullConfig procedure, discards the stored PDCP SDU and PDCP PDU, where the PDCP SDU includes the first data, but performs a suspension operation on the first PDCP entity, so that the first PDCP entity is placed in a suspension (suspend) state from an active state, and thus the first PDCP entity is in a state of suspending data transmission.

S603, the RRC layer of the wireless communication device transmits information requesting establishment of the PDCP entity set to the PDCP layer of the wireless communication device. Correspondingly, the PDCP layer of the wireless communication device receives information requesting establishment of a PDCP entity set from the RRC layer of the wireless communication device.

For example, the RRC layer of the wireless communication device may transmit information requesting establishment of the PDCP entity set to the PDCP layer of the wireless communication device according to the RRC message.

S604, the PDCP layer of the wireless communication device establishes a PDCP entity set.

For example, the PDCP layer of the wireless communication apparatus may establish a PDCP entity set including at least one PDCP entity after receiving information requesting to establish the PDCP entity set from the wireless communication apparatus.

S605, the PDCP layer of the radio communication apparatus transmits information indicating success of random access to the RRC layer of the radio communication apparatus. Correspondingly, the RRC layer of the wireless communication device receives information indicating that the random access is successful from the PDCP layer of the wireless communication device.

For example, the wireless communication apparatus may initiate random access of the target cell to the base station, and in case the random access is successful, the PDCP layer of the wireless communication apparatus may transmit information indicating the success of the random access to the RRC layer of the wireless communication apparatus. Thereafter, the RRC layer of the wireless communication device may send a reconfiguration complete message to the base station, characterizing that the FullConfig procedure has been successfully completed.

The information indicating the success of the random access may be sent to the PDCP layer by a Medium Access Control (MAC) layer of the wireless communication apparatus, forwarded to the RRC layer via the PDCP layer, or directly sent to the RRC layer by the MAC layer of the wireless communication apparatus.

S606, the PDCP layer of the wireless communication device determines a second PDCP entity according to the evolved packet system bearer identification of the first PDCP entity.

For example, the PDCP layer of the wireless communication apparatus may traverse the PDCP entity set according to the information of the evolved packet system bearer identity of the first PDCP entity carried in the RRC message to determine the second PDCP entity. Wherein the second PDCP entity belongs to a PDCP entity set (is one PDCP entity in the PDCP entity set), and the second PDCP entity has the same evolved packet system bearer identity as the first PDCP entity.

S607, the PDCP layer of the radio communication apparatus transfers the first data to the second PDCP entity.

For example, after determining the second PDCP entity, the PDCP layer of the wireless communication apparatus may transfer the first data carried by the first PDCP entity to the second PDCP entity so that the wireless communication apparatus may transmit the first data to the base station through the second PDCP entity.

S608, the RRC layer of the wireless communication device transmits information to release the first PDCP entity to the PDCP layer of the wireless communication device. Correspondingly, the PDCP layer of the wireless communication device receives information releasing the first PDCP entity from the RRC layer of the wireless communication device.

For example, since the first data has been transferred from the first PDCP entity to the second PDCP entity and transmitted to the base station, the RRC layer of the wireless communication device may transmit information releasing the suspended first PDCP entity to the PDCP layer of the wireless communication device, such that the PDCP layer of the wireless communication device releases the first PDCP entity and the data carried thereby.

It should be understood that in this embodiment, the pdcsdu may carry a common PS service data packet or an IMS signaling data packet, which is not limited herein.

Based on the above scheme, the RRC layer of the radio communication device receives the RRC message, the PDCP layer of the radio communication device does not release the first PDCP entity according to the RRC message, discards the data carried by the first PDCP entity, but suspends the first PDCP entity, so that the first data carried by the first PDCP entity is retained, and thus the first data can be sent to the base station, avoiding that the PDCP entity (including the first PDCP entity) needs to be released due to the cell FullConfig of the RRC message being set to true in the process of performing the flow FullConfig of the radio communication device, discarding the data (including the first data) carried by the PDCP entity due to the execution of the flow FullConfig, thereby resulting in packet loss phenomenon, improving the integrity of data transmission, improving the transmission performance of the system, and improving the user experience.

Under the condition that the wireless communication equipment initiates random access of a target cell to the base station successfully, the PDCP layer of the wireless communication equipment determines a second PDCP entity with the same evolution packet system bearing identifier in a newly built PDCP entity set according to the evolution packet system bearing identifier of the first PDCP entity carried by the RRC message, and transfers first data carried by the suspended first PDCP entity to the second PDCP entity, and sends the first data to the base station through the second PDCP entity. Finally, the PDCP layer of the wireless communication device releases the suspended first PDCP entity. Therefore, after the RRC message is received, the first data carried by the first PDCP entity is not discarded, and the second PDCP entity is used for sending the first data, so that the experience of the user is improved. And finally, releasing the first PDCP entity, so that the PDCP entity can be released due to no data transmission, and if other services can establish corresponding PDCP entities under the condition that the PDCP entity is needed, avoiding the waste of resources.

Fig. 7 is a schematic diagram of a method 700 for data processing according to an embodiment of the present application. As shown in fig. 7, the method 700 may include the steps of:

S701, an RRC layer of the wireless communication device transmits information indicating to suspend the first PDCP entity to a PDCP layer of the wireless communication device. Correspondingly, the PDCP layer of the wireless communication apparatus receives information indicating to suspend the first PDCP entity from the RRC layer of the wireless communication apparatus.

Specifically, regarding the description that the RRC layer of the wireless communication device transmits information indicating to suspend the first PDCP entity to the PDCP layer of the wireless communication device, reference may be made to the related description in S601 above, and the present application is not repeated herein for brevity.

S702, the PDCP layer of the wireless communication device suspends the first PDCP entity.

For example, the PDCP layer of the wireless communication device may suspend the first PDCP entity after receiving the RRC message, i.e., make the first PDCP entity in a suspended (suspend) state.

Specifically, regarding the description of the PDCP layer suspending the first PDCP entity of the wireless communication apparatus, reference may be made to the related description in S602 described above. For brevity, the present application is not described in detail herein.

S703, the RRC layer of the wireless communication device transmits information requesting establishment of the PDCP entity set to the PDCP layer of the wireless communication device. Correspondingly, the PDCP layer of the wireless communication device receives information requesting establishment of a PDCP entity set from the RRC layer of the wireless communication device.

S704, the PDCP layer of the wireless communication apparatus establishes a PDCP entity set.

S705, the PDCP layer of the radio communication apparatus transmits information indicating a random access failure to the RRC layer of the radio communication apparatus. Correspondingly, the RRC layer of the wireless communication device receives information indicating a random access failure from the PDCP layer of the wireless communication device.

For example, the wireless communication apparatus may initiate random access of the target cell to the base station, and in case of the random access failure, the PDCP layer of the wireless communication apparatus may transmit information indicating the random access failure to the RRC layer of the wireless communication apparatus.

The information indicating the random access failure may be sent to the PDCP layer by the MAC layer of the wireless communication apparatus, forwarded to the RRC layer by the PDCP layer, or directly sent to the RRC layer by the MAC layer of the wireless communication apparatus.

S706, the RRC layer of the wireless communication device transmits information to recover the first PDCP entity to the PDCP layer of the wireless communication device. Correspondingly, the PDCP layer of the wireless communication device receives information for recovering the first PDCP entity from the RRC layer of the wireless communication device.

For example, since the wireless communication apparatus initiates the random access failure of the target cell to the base station, the RRC layer of the wireless communication apparatus may transmit information to recover the first PDCP entity to the PDCP layer of the wireless communication apparatus, suspend the first PDCP entity, i.e., put the state of the PDCP entity (first PDCP entity) from a suspend (active) state to an active (active) state, so that the first PDCP entity can normally transmit data. Since the PDCP layer of the radio communication apparatus restores the suspended first PDCP entity and thus also restores the first data, the first data can be transmitted to the base station through the restored first PDCP entity.

S707, the RRC layer of the wireless communication device transmits information to release the PDCP entity set to the PDCP layer of the wireless communication device. Correspondingly, the PDCP layer of the wireless communication device receives information for releasing the PDCP entity set from the RRC layer of the wireless communication device.

For example, since the wireless communication apparatus has transmitted the first data to the base station through the first PDCP entity, the RRC layer of the wireless communication apparatus may transmit information for releasing the PDCP entity set to the PDCP layer of the wireless communication apparatus such that the PDCP entity set is released by the PDCP layer of the wireless communication apparatus.

Wherein, in case that the wireless communication device initiates the random access failure of the target cell to the base station, the PDCP layer of the wireless communication device transmits the first data to the base station through the first PDCP entity by recovering the suspended first PDCP entity so that the first PDCP entity can normally transmit the first data. Therefore, the first data carried by the first PDCP entity can be reserved, the first data can be continuously sent to the base station, the phenomenon of data packet loss is avoided, the service data cannot be lost, and the user experience is improved. Finally, the PDCP layer of the wireless communication device releases the PDCP entity set, so that the PDCP entity set can be released due to no data transmission, if other services can create corresponding PDCP entities in case of needing PDCP entities, thereby avoiding waste of resources.

It will be appreciated that in the above embodiment of the method, the method and the operation performed by the terminal device may also be performed by a component (e.g. a chip or a circuit) that may be used in the terminal device, and the method and the operation performed by the network device may also be performed by a component (e.g. a chip or a circuit) that may be used in the network device.

The method provided by the embodiment of the application is described in detail above with reference to fig. 5 to 7. The following describes in detail the communication device provided in the embodiment of the present application with reference to fig. 8 to 11. It should be understood that the descriptions of the apparatus embodiments and the descriptions of the method embodiments correspond to each other, and thus, descriptions of details not described may be referred to the above method embodiments, which are not repeated herein for brevity.

The scheme provided by the embodiment of the application is mainly introduced from the interaction angle among the network elements. It will be appreciated that each network element, e.g. the transmitting device or the receiving device, in order to implement the above-mentioned functions, comprises corresponding hardware structures and/or software modules for performing each function. Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven 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 application.

The embodiment of the application can divide the function modules of the transmitting end equipment or the receiving end equipment according to the method example, for example, each function module can be divided corresponding to each function, and two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation. The following description will take an example of dividing each functional module into corresponding functions.

Fig. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application. The communication device 800 includes a receiving module 810 and a processing module 820. The receiving module 810 may implement a corresponding communication function, and the processing module 810 is configured to perform data processing. The receiving module 810 may also be referred to as a communication interface or communication module.

Optionally, the communication device 800 may further include a storage module, where the storage module may be used to store instructions and/or data, and the processing module 820 may read the instructions and/or data in the storage module, so that the communication device implements the foregoing method embodiments.

The communication device 800 may be configured to perform the actions performed by the wireless communication device in the above method embodiment, where the communication device 800 may be a wireless communication device or a component configurable in a wireless communication device, the receiving module 810 is configured to perform the operations related to the receiving on the wireless communication device side in the above method embodiment, and the processing module 820 is configured to perform the operations related to the processing on the wireless communication device side in the above method embodiment.

Or the communication device 800 may be configured to perform the actions performed by the base station in the above method embodiment, where the communication device 800 may be a base station or a component that may be configured in the base station, the receiving module 810 is configured to perform the operations related to the receiving and transmitting on the base station side in the above method embodiment, and the processing module 820 is configured to perform the operations related to the processing on the base station side in the above method embodiment.

As one design, the communication device 800 is configured to perform the actions performed by the wireless communication device in the embodiment shown in fig. 5 above.

As another design, the communication device 800 is configured to perform the actions performed by the wireless communication device in the embodiment shown in fig. 6 above.

As another design, the communication device 800 is configured to perform the actions performed by the wireless communication device in the embodiment shown in fig. 7 above.

The communication device 800 may implement steps or processes corresponding to those performed by the wireless communication devices in the methods 500-700 according to embodiments of the present application, and the communication device 800 may include modules for performing the methods performed by the wireless communication devices in the methods 500-700 of fig. 5-7. And, each module in the communication device 800 and the other operations and/or functions described above are respectively for implementing the respective flows of the method 500 in fig. 5 to the method 700 in fig. 7.

It should be understood that the specific process of each module to perform the corresponding steps is described in detail in the above method embodiments, and is not described herein for brevity.

As another design, the communication device 800 is configured to perform the actions performed by the base station in the embodiment shown in fig. 5 above.

The communication device 800 may implement steps or processes corresponding to those performed by a base station in the method 500 according to an embodiment of the present application, and the communication device 800 may include modules for performing the method performed by the base station in the method 500 in fig. 5. And, each module in the communication device 800 and other operations and/or functions described above are for implementing a corresponding flow of the method 500 in fig. 5.

The processing module 820 in the above embodiments may be implemented by at least one processor or a multi-core processor or a processing core or processor-related circuitry. The receiving module 810 may be implemented by a receiver or transceiver or receiver related circuitry. The receiving module 810 may also be referred to as a communication module or communication interface. The memory module may be implemented by at least one memory.

As shown in fig. 9, the embodiment of the application further provides a communication device 900. The communication device 900 comprises a processor 910, the processor 910 being coupled to a memory 920, the memory 920 being for storing computer programs or instructions and/or data, the processor 910 being for executing the computer programs or instructions and/or data stored by the memory 920, such that the method in the above method embodiments is performed.

Optionally, the communication device 900 includes one or more processors 910.

Optionally, as shown in fig. 9, the communication device 900 may further include a memory 920.

Optionally, the communications apparatus 900 can include one or more memories 920.

Alternatively, the memory 920 may be integrated with the processor 910 or provided separately.

Optionally, as shown in fig. 9, the communication device 900 may further include a transceiver 930, where the transceiver 930 is configured to receive and/or transmit signals. For example, the processor 910 is configured to control the transceiver 930 to receive and/or transmit signals.

As an aspect, the communication device 900 is configured to implement the operations performed by the wireless communication device in the above method embodiments.

For example, the processor 910 is configured to implement the operations related to processing performed by the wireless communication device in the above method embodiment, and the transceiver 930 is configured to implement the operations related to transceiving performed by the wireless communication device in the above method embodiment.

Alternatively, the communication device 900 is configured to implement the operations performed by the base station in the above method embodiment.

For example, the processor 910 is configured to implement the operations related to the processing performed by the base station in the above method embodiment, and the transceiver 930 is configured to implement the operations related to the transceiving performed by the base station in the above method embodiment.

The embodiment of the application also provides a communication device 1000, and the communication device 1000 may be a wireless communication device or a chip. The communications apparatus 1000 can be configured to perform the operations performed by the wireless communications apparatus in the method embodiments described above.

When the communication device 1000 is a wireless communication device, fig. 10 shows a simplified schematic configuration of the wireless communication device. As shown in fig. 10, the wireless communication device includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the wireless communication device, executing software programs, processing data of the software programs and the like. The memory is mainly used for storing software programs and data. The radio frequency circuit is mainly used for converting a baseband signal and a radio frequency signal and processing the radio frequency signal. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used for receiving data input by a user and outputting data to the user. It should be noted that some kinds of wireless communication apparatuses may not have an input/output apparatus.

When data need to be sent, the processor carries out baseband processing on the data to be sent and then outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit carries out radio frequency processing on the baseband signal and then sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is transmitted to the wireless communication device, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of illustration, only one memory and processor are shown in fig. 10, and in an actual wireless communication device product, one or more processors and one or more memories may be present. The memory may also be referred to as a storage medium or storage device, etc. The memory may be provided separately from the processor or may be integrated with the processor, as the embodiments of the application are not limited in this respect.

In the embodiment of the application, the antenna and the radio frequency circuit with the receiving and transmitting functions can be regarded as a receiving module of the wireless communication device, and the processor with the processing function can be regarded as a processing module of the wireless communication device.

As shown in fig. 10, the terminal device includes a receiving module 1010 and a processing module 1020. The receiving module 1010 may also be referred to as a receiver, transceiver, receiving circuitry, transceiver, transceiving means, etc. The processing module 1020 may also be referred to as a processor, a multi-core processor, a processing core, a processing circuit, a processing board, a processing module, a processing device, etc.

Alternatively, the device for implementing the receiving function in the receiving module 1010 may be regarded as a receiving module, and the device for implementing the transmitting function in the receiving module 1010 may be regarded as a transmitting module, i.e. the receiving module 1010 includes a receiving module and a transmitting module. The receiving module may also be sometimes referred to as a receiver, transceiver, receiving circuitry, transceiver, transceiving means, etc. The transmitting module may also sometimes be referred to as a transmitter, transmitter or transmitting circuit, etc.

For example, in one implementation, the receiving module 1010 is configured to perform the step of transceiving by the wireless communication device in fig. 5, and the processing module 1020 is configured to perform the processing actions by the wireless communication device in fig. 5.

In another implementation, the receiving module 1010 is configured to perform the transceiving step of the wireless communication device in fig. 6, and the processing module 1020 is configured to perform the processing actions of the wireless communication device in fig. 6.

In another implementation, the receiving module 1010 is configured to perform the transceiving step of the wireless communication device in fig. 7, and the processing module 1020 is configured to perform the processing actions of the wireless communication device in fig. 7.

It should be understood that fig. 10 is only an example and not a limitation, and the above-described wireless communication apparatus including the receiving module and the processing module may not depend on the structure shown in fig. 10.

When the communication device 1000 is a chip, the chip includes a receiving module and a processing module. The receiving module can be an input/output circuit or a communication interface; the processing module may be an integrated processor or microprocessor or integrated circuit on the chip.

The embodiment of the application also provides a communication device 1100, and the communication device 1100 can be a base station or a chip. The communication device 1100 may be used to perform the operations performed by a base station in the method embodiments described above.

When the communication apparatus 1100 is a base station, it is, for example, a base station. Fig. 11 shows a simplified schematic of a base station architecture. The base station includes 1110 a portion and 1120 a portion. The 1110 part is mainly used for receiving and transmitting radio frequency signals and converting the radio frequency signals and baseband signals; the 1120 part is mainly used for baseband processing, control of the base station, and the like. Section 1110 may be generally referred to as a transceiver module, transceiver circuitry, or transceiver, etc. The portion 1120 is typically a control center of the base station, and may be generally referred to as a processing module, and is configured to control the base station to perform the processing operation on the base station side in the foregoing method embodiment.

The transceiver module of section 1110, which may also be referred to as a transceiver or transceiver, includes an antenna and radio frequency circuitry, wherein the radio frequency circuitry is primarily for performing radio frequency processing. Alternatively, the device for implementing the receiving function in the 1110 portion may be regarded as a receiving module, and the device for implementing the transmitting function may be regarded as a transmitting module, i.e. the 1110 portion includes the receiving module and the transmitting module. The receiving module may also be referred to as a receiver, or a receiving circuit, etc., and the transmitting module may be referred to as a transmitter, or a transmitting circuit, etc.

Portion 1120 may include one or more boards, each of which may include one or more processors and one or more memories. The processor is used for reading and executing the program in the memory to realize the baseband processing function and control of the base station. If there are multiple boards, the boards can be interconnected to enhance processing power. As an alternative implementation manner, the multiple boards may share one or more processors, or the multiple boards may share one or more memories, or the multiple boards may share one or more processors at the same time.

For example, in one implementation, the transceiver module of section 1110 is configured to perform the transceiver-related steps performed by the base station in the embodiment shown in fig. 5; 1120 are used in part to perform the steps associated with the processing performed by the base station in the embodiment shown in fig. 5.

It should be understood that fig. 11 is only an example and not a limitation, and the above-described base station including the transceiver module and the processing module may not depend on the structure shown in fig. 11.

When the communication device 1100 is a chip, the chip includes a transceiver module and a processing module. The transceiver module can be an input/output circuit and a communication interface; the processing module is an integrated processor or microprocessor or integrated circuit on the chip.

The embodiment of the present application also provides a computer readable storage medium having stored thereon computer instructions for implementing the method performed by the wireless communication device in the above method embodiment, or the method performed by the base station.

For example, the computer program when executed by a computer, enables the computer to implement the method performed by the wireless communication apparatus in the above-described method embodiment, or the method performed by the base station.

Embodiments of the present application also provide a computer program product comprising instructions which, when executed by a computer, cause the computer to implement the method performed by the wireless communication device or the method performed by the base station in the method embodiments described above.

The embodiment of the application also provides a communication system which comprises the base station and the wireless communication device in the embodiment.

It will be clearly understood by those skilled in the art that, for convenience and brevity, explanation and beneficial effects of the relevant content in any of the above-mentioned communication devices may refer to the corresponding method embodiments provided above, and are not repeated here.

In an embodiment of the present application, the wireless communication device or the base station may include a hardware layer, an operating system layer running above the hardware layer, and an application layer running above the operating system layer. The hardware layer may include a central processing unit (central processing unit, CPU), a memory management module (memory management unit, MMU), and a memory (also referred to as a main memory). The operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes (processes), for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or windows operating system, etc. The application layer may include applications such as a browser, address book, word processor, instant messaging software, and the like.

The embodiment of the present application is not particularly limited to the specific structure of the execution body of the method provided by the embodiment of the present application, as long as communication can be performed by the method provided according to the embodiment of the present application by running a program in which codes of the method provided by the embodiment of the present application are recorded. For example, the execution body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call a program and execute the program.

Various aspects or features of the application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein may encompass a computer program accessible from any computer-readable device, carrier, or media.

Among other things, computer readable storage media can be any available media that can be accessed by a computer or data storage devices such as servers, data centers, etc. that contain one or more integration of the available media. Usable (or computer readable) media may include, for example, but are not limited to: magnetic media or magnetic storage devices (e.g., floppy disks, hard disks (e.g., removable disks), magnetic tape), optical media (e.g., compact Discs (CDs), digital versatile discs (DIGITAL VERSATILE DISC, DVDs), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.), or semiconductor media (e.g., solid-state disks (SSDs) etc.), U-discs, read-only memories (ROMs), random access memories (random access memory, RAMs), etc., various media that may store program code.

Various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to: wireless channels, and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

It should be appreciated that the processor referred to in the embodiments of the present application may be a central processing module (central processing unit, CPU), but may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (field programmable GATE ARRAY, FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memory referred to in embodiments of the present application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable ROM (erasable PROM), an electrically erasable programmable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM). For example, RAM may be used as an external cache. By way of example, and not limitation, RAM may include the following forms: static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).

It should be noted that when the processor is a general purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, the memory (storage module) may be integrated into the processor.

It should also be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the modules described above is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted or not performed. Furthermore, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or module, and may be in electrical, mechanical or other form.

The modules described above as separate components may or may not be physically separate, and components shown as modules may or may not be physical modules, i.e., may be located in one place, or may be distributed over multiple network modules. Some or all of the modules can be selected according to actual needs to realize the scheme provided by the application.

In addition, each functional module in each embodiment of the present application may be integrated into one module, or each module may exist alone physically, or two or more modules may be integrated into one module.

In the above embodiments, it 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 the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. For example, the computer may be a personal computer, a server, or a network device, etc. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. With respect to computer readable storage media, reference may be made to the description above.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any modifications and substitutions easily recognized by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims and the specification.

Claims

A method of data processing, comprising:

The wireless communication device receives a Radio Resource Control (RRC) message from a base station, wherein the RRC message comprises a first configuration field, and the first configuration field is used for indicating to release a first Packet Data Convergence Protocol (PDCP) entity;

The wireless communication device suspends the first PDCP entity, the first PDCP entity carrying first data;

The wireless communication device transmits the first data to the base station.
The method according to claim 1, wherein the method further comprises:

The wireless communication device initiates random access to the base station according to the RRC message.
The method of claim 2, wherein prior to the wireless communication device initiating random access to the base station, the method further comprises:

The wireless communication apparatus establishes a PDCP entity set including at least one PDCP entity according to the RRC message.
The method of claim 3, wherein the RRC message includes information of an evolved packet system bearer identity of the first PDCP entity, wherein the wireless communication device sends first data to the base station if the random access is successful, comprising:

The wireless communication device determines a second PDCP entity according to the evolution packet system bearing identifier of the first PDCP entity, wherein the second PDCP entity belongs to the PDCP entity set, and the second PDCP entity and the first PDCP entity have the same evolution packet system bearing identifier;

the wireless communication device transferring the first data to the second PDCP entity;

the wireless communication device transmits the first data to the base station through the second PDCP entity.
The method according to claim 4, wherein the method further comprises:

the wireless communication device releases the first PDCP entity.
A method according to claim 3, wherein in the event of a failure of the random access, the wireless communication device transmits first data to the base station, comprising:

The wireless communication device recovering the first PDCP entity;

The wireless communication device transmits the first data to the base station through the first PDCP entity.
The method of claim 6, wherein the method further comprises:

the wireless communication device releases the set of PDCP entities.
An apparatus for data processing, comprising:

A transceiver module, configured to receive a radio resource control RRC message from a base station, where the RRC message includes a first configuration field, and the first configuration field is configured to instruct to release a first packet data convergence protocol PDCP entity;

A processing module, configured to suspend the first PDCP entity, where the first PDCP entity carries first data;

the transceiver module is further configured to send the first data to the base station.
The apparatus of claim 8, wherein the processing module is further configured to:

and according to the RRC message, initiating random access to the base station.
The apparatus of claim 9, wherein the processing module is further configured to:

And establishing a PDCP entity set according to the RRC message, wherein the PDCP entity set comprises at least one PDCP entity.
The apparatus of claim 10, wherein the RRC message includes information of an evolved packet system bearer identity of the first PDCP entity, wherein, in case the random access is successful,

The processing module is further configured to determine a second PDCP entity according to the evolved packet system bearer identifier of the first PDCP entity, where the second PDCP entity belongs to the PDCP entity set, and the second PDCP entity and the first PDCP entity have the same evolved packet system bearer identifier;

the processing module is further configured to transfer the first data to the second PDCP entity;

The transceiver module is further configured to send the first data to the base station through the second PDCP entity.
The apparatus of claim 11, wherein the processing module is further configured to:

releasing the first PDCP entity.
The apparatus of claim 10, wherein, in the event of a failure of the random access,

The processing module is further configured to recover the first PDCP entity;

The transceiver module is further configured to send the first data to the base station through the first PDCP entity.
The apparatus of claim 13, wherein the processing module is further configured to:

Releasing the PDCP entity set.
A communication device, comprising: the device comprises a processor and a transmission interface, wherein the processor receives and transmits data through the transmission interface;

The processor configured to execute computer instructions stored in a memory, to cause the communication device to perform the method of any one of claims 1 to 7.
A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when executed by a computer or a processor, causes the communication device to perform the method of any of claims 1 to 7.
A computer program product, characterized in that the computer program product comprises instructions for performing the method of any of claims 1 to 7.