CN114126091B

CN114126091B - Uplink data processing method, device, network equipment, terminal equipment and medium

Info

Publication number: CN114126091B
Application number: CN202010873107.2A
Authority: CN
Inventors: 孙建成
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2024-05-31
Anticipated expiration: 2040-08-26
Also published as: CN114126091A; WO2022042652A1

Abstract

The application provides an uplink data processing method, an uplink data processing device, network equipment, terminal equipment and a medium, wherein the method comprises the following steps: receiving a first message sent by terminal equipment; carrying out data processing on the uplink data to obtain first processing data; the first processing data is sent to the first concentration unit CU and no operation is performed to release the UE context corresponding to the terminal device. In the application, when the first DU receives the uplink data sent by the terminal equipment, the first DU processes the uplink data and sends the uplink data to the first CU. In addition, the first DU does not execute the operation of releasing the UE context corresponding to the terminal device, and when the next uplink data processing is performed, the first DU can process the next uplink data according to the UE context, without establishing the corresponding UE context with the first CU again, so that the transmission flow of the uplink data can be simplified, and the data transmission efficiency can be improved.

Description

Uplink data processing method, device, network equipment, terminal equipment and medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to an uplink data processing method, an apparatus, a network device, a terminal device, and a medium.

Background

In a New wireless (NR) communication system of a fifth Generation mobile communication technology (5-Generation, 5G), a third state called an Inactive state is introduced in addition to the state (IDLE state and Connected state) of an access layer in a long term evolution (Long Term Evolution, LTE) system.

When the terminal equipment completes the last uplink data transmission and enters an RRC inactive state, a distribution unit DU for carrying out the last service on the terminal equipment in the network equipment releases the UE context corresponding to the terminal equipment.

However, when the terminal device in the RRC inactive state performs the next uplink data transmission, the distribution unit DU in the network device needs to reestablish the UE context corresponding to the terminal device. Therefore, the existing data transmission process is complicated and has low efficiency.

Disclosure of Invention

The application provides an uplink data processing method, an uplink data processing device, network equipment, terminal equipment and a medium, which are used for solving the technical problems existing in the prior art.

In a first aspect, the present application provides an uplink data processing method, applied to a first distribution unit DU, the method including:

receiving a first message sent by terminal equipment (UE) in a Radio Resource Control (RRC) inactive state, wherein the first message comprises uplink data and is used for requesting RRC recovery;

performing data processing on the uplink data to obtain first processing data;

and sending the first processing data to a first centralized unit CU, and not executing the operation of releasing the UE context corresponding to the terminal equipment.

In some embodiments, the operation of releasing the UE context corresponding to the terminal device is not performed, including:

And receiving a second message sent by the first CU, and not executing the operation of releasing the UE context corresponding to the terminal equipment according to the second message.

In some embodiments, the first message further includes an RRC restoration request for requesting RRC restoration;

after receiving the first message sent by the terminal equipment UE in the radio resource control RRC inactive state, the method further includes:

And sending the RRC recovery request to the first CU.

In some embodiments, in a previous uplink data processing process, if the first DU does not perform an operation of releasing the UE context corresponding to the terminal device, the processing the uplink data to obtain first processing data includes:

And carrying out data processing on the uplink data according to the reserved UE context to obtain the first processing data.

In some embodiments, if the UE context corresponding to the terminal device is not reserved in the first DU, the data processing is performed on the uplink data to obtain first processing data, including:

Receiving a UE context establishment request initiated by the first CU based on the UE context corresponding to the terminal equipment, and establishing the UE context;

And carrying out data processing on the uplink data according to the established UE context to obtain the first processing data.

In a second aspect, the present application provides an uplink data processing method, applied to a first central unit CU, the method including:

Receiving first processing data sent by a first distribution unit DU, wherein the first processing data is obtained by performing data processing on uplink data contained in a first message after the first message sent by terminal equipment UE in a radio resource control RRC inactive state is received by the first DU;

And sending a second message to the first DU, wherein the second message is used for indicating that the first DU does not execute the operation of releasing the UE context corresponding to the terminal equipment.

In some embodiments, further comprising:

And receiving an RRC recovery request which is sent by the first DU and contained in the first message.

In some embodiments, further comprising:

And when a first control message is sent to the terminal equipment to instruct the terminal equipment to enter an RRC inactive state, a second control message is sent to the first DU, wherein the second control message is used for instructing the first DU not to execute the operation of releasing the UE context corresponding to the terminal equipment.

In some embodiments, if the first CU maintains the UE context corresponding to the terminal device, the method further includes:

And initiating a UE context establishment request to the first DU based on the UE context corresponding to the terminal equipment, wherein the UE context establishment request is used for indicating the first DU to establish the UE context, and carrying out data processing on the uplink data according to the established UE context to obtain the first processing data.

In some embodiments, further comprising:

And sending a third message to a second DU, where the third message is used to instruct the second DU to release the UE context corresponding to the terminal device, the second DU is a DU in which an operation of releasing the UE context corresponding to the terminal device is not performed in the previous uplink data processing process, and the second DU is different from the first DU.

In some embodiments, if the first CU does not retain the UE context corresponding to the terminal device, the method further includes:

according to the RRC recovery request, sending a UE context acquisition request to a second CU, wherein the second CU is an anchor CU of the terminal equipment;

Receiving a UE context corresponding to the terminal equipment, which is sent by the second CU based on the UE context acquisition request;

And initiating a UE context establishment request to the first DU based on the UE context, wherein the UE context establishment request is used for indicating the first DU to establish the UE context, and carrying out data processing on the uplink data according to the established UE context to obtain the first processing data.

In some embodiments, further comprising:

And sending a fourth message to the second CU, wherein the fourth message is used for indicating the second CU to release the UE context corresponding to the terminal equipment.

In a third aspect, the present application provides an uplink data processing method, applied to a terminal device, where the method includes:

when the Radio Resource Control (RRC) is in an inactive state, if uplink data needs to be sent, generating a first message, wherein the first message comprises the uplink data;

And sending the first message to a first Distribution Unit (DU), wherein the first message is used for indicating the first DU to perform data processing on the uplink data to obtain first processing data, and sending the first processing data to a first Concentration Unit (CU) without executing the operation of releasing the UE context corresponding to the terminal equipment.

In a fourth aspect, the present application provides a first distribution unit DU of a network device, comprising a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

performing data processing on the uplink data to obtain first processing data;

After the receiving the first message sent by the terminal equipment UE in the radio resource control RRC inactive state, the operations further include:

And sending the RRC recovery request to the first CU.

In a fifth aspect, the present application provides a first central unit CU of a network device, comprising a memory, a transceiver, and a processor:

In some embodiments, the operations further comprise:

In a sixth aspect, the present application provides a network device, including the first distribution unit DU as described above, and the first concentration unit CU as described above.

In a seventh aspect, the present application provides a terminal device, comprising a memory, a transceiver, and a processor:

When the Radio Resource Control (RRC) is in an inactive state, if uplink data needs to be sent, generating a first message, wherein the first message comprises the uplink data; and sending the first message to a first Distribution Unit (DU), wherein the first message is used for indicating the first DU to perform data processing on the uplink data to obtain first processing data, and sending the first processing data to a first Concentration Unit (CU) without executing the operation of releasing the UE context corresponding to the terminal equipment.

In an eighth aspect, the present application provides an uplink data processing apparatus applied to a first distribution unit DU, the apparatus including:

A receiving unit, configured to receive a first message sent by a terminal device UE in a radio resource control RRC inactive state, where the first message includes uplink data, and the first message is used to request RRC recovery;

the processing unit is used for carrying out data processing on the uplink data to obtain first processing data;

A transmitting unit, configured to transmit the first processing data to a first concentrating unit CU;

The processing unit is further configured to not perform an operation of releasing the UE context corresponding to the terminal device.

In a ninth aspect, the present application provides an uplink data processing apparatus applied to a first concentrating unit CU, the apparatus comprising:

A receiving unit, configured to receive first processing data sent by a first distribution unit DU, where the first processing data is obtained by performing data processing on uplink data included in a first message after the first message sent by a terminal device UE in an inactive state of radio resource control RRC is received by the first DU;

And the sending unit is used for sending a second message to the first DU, wherein the second message is used for indicating that the first DU does not execute the operation of releasing the UE context corresponding to the terminal equipment.

In a tenth aspect, the present application provides an uplink data processing apparatus, applied to a terminal device, the apparatus comprising:

The processing unit is used for generating a first message when the Radio Resource Control (RRC) is in an inactive state and if uplink data is required to be sent, wherein the first message comprises the uplink data;

And the sending unit is used for sending the first message to the first distribution unit DU, wherein the first message is used for indicating the first DU to perform data processing on the uplink data to obtain first processing data, sending the first processing data to the first concentration unit CU, and not executing the operation of releasing the UE context corresponding to the terminal equipment.

In an eleventh aspect, the present application provides a computer-readable storage medium having stored therein computer-executable instructions for implementing the above-described uplink data processing method when executed by a processor.

The application provides an uplink data processing method, an uplink data processing device, network equipment, terminal equipment and a medium, wherein the method comprises the following steps: receiving a first message sent by terminal equipment (UE) in a Radio Resource Control (RRC) inactive state, wherein the first message comprises uplink data and is used for requesting RRC recovery; carrying out data processing on the uplink data to obtain first processing data; the first processing data is sent to the first concentration unit CU and no operation is performed to release the UE context corresponding to the terminal device. In the application, when the first DU receives the uplink data sent by the terminal equipment in the RRC inactive state, the first DU processes the uplink data and sends the uplink data to the first CU. In addition, the first DU does not execute the operation of releasing the UE context corresponding to the terminal device, and when performing the next uplink data processing, the first DU can process the next uplink data according to the unreleased UE context, without establishing the corresponding UE context with the first CU again, so that the transmission flow of the uplink data can be simplified, and the data transmission efficiency can be improved.

It should be understood that the description of the invention above is not intended to limit key or critical features of embodiments of the invention, nor to limit the scope of the invention. Other features of the present invention will become apparent from the description that follows.

Drawings

In order to more clearly illustrate the application or the technical solutions of the prior art, the following description of the embodiments or the drawings used in the description of the prior art will be given in brief, it being obvious that the drawings in the description below are some embodiments of the application and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a CU-DU separation architecture;

fig. 2 is a schematic diagram of data transmission performed by a terminal device in an RRC inactive state in the prior art;

Fig. 3 is a schematic diagram of an uplink data processing method according to an embodiment of the present application;

Fig. 4 is another schematic diagram of an uplink data processing method according to an embodiment of the present application;

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

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

FIG. 7 is a schematic diagram of a first distribution unit according to an embodiment of the present application;

fig. 8 is a schematic diagram of a terminal device according to an embodiment of the present application;

fig. 9 is a schematic diagram of an uplink data processing apparatus according to an embodiment of the present application;

FIG. 10 is another schematic diagram of an uplink data processing apparatus according to an embodiment of the present application;

fig. 11 is a schematic diagram of an uplink data processing apparatus according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this embodiment of the application, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

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

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, applicable systems may be global system for mobile communications (Global System Of Mobile Communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) General Packet Radio Service (GPRS) system, long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD) system, long term evolution-advanced (Long Term Evolution Advanced, LTE-a) system, universal mobile system (Universal Mobile Telecommunication System, UMTS), global interconnect microwave access (Worldwide Interoperability For Microwave Access, wimax) system, 5G New air interface (New Radio, NR) system, and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved PACKET SYSTEM, EPS), 5G system (5 GS), etc. may also be included in the system.

The terminal device according to the embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as Personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal DIGITAL ASSISTANT, PDA) and the like. The wireless Terminal Device may also be referred to as a system, subscriber Unit (Subscriber Unit), subscriber Station (Subscriber Station), mobile Station (Mobile Station), remote Station (Remote Station), access Point (Access Point), remote Terminal Device (Remote Terminal), access Terminal Device (ACCESS TERMINAL), user Terminal Device (User Terminal), user Agent (User Agent), user equipment (User Device), and embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for the terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be configured to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System For Mobile Communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (Nodeb) in a wideband code division multiple access (Wide-Band Code Division Multiple Access, WCDMA), an evolved network device (Evolutional Node B, enb or E-Nodeb) in a long term evolution (Long Term Evolution, LTE) system, a 5G base station (Gnb) in a 5G network architecture (Next Generation System), a home evolved base station (Home Evolved Node B, henb), a Relay Node (Relay Node), a home base station (Femto), a Pico base station (Pico), etc., which are not limited in the embodiment of the present application. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

The network device according to the embodiment of the application can be specifically a CU-DU separation architecture. Fig. 1 is a schematic diagram of a CU-DU separation architecture, as shown in fig. 1, where the CUs and DUs may be physically separated or may be deployed together. Multiple DUs may share one CU. One DU may also connect multiple CUs. The CU and the DU may be connected by an interface, for example, an F1 interface. CUs and DUs may be partitioned according to the protocol layers of the wireless network. Functions such as RRC (Radio Resource Control, radio resource Control layer), service data adaptation protocol stack (SERVICE DATA Adaptation Protocol, SDAP), and packet data convergence layer protocol (PACKET DATA Convergence Protocol, PDCP) layer are provided at the CU, and functions of radio link Control (Radio Link Control, RLC), medium access Control (MEDIA ACCESS Control, MAC) layer, physical (PHY) layer, and the like are provided at the DU. It will be appreciated that the partitioning of CU and DU processing functions in accordance with such protocol layers is merely an example, and may be partitioned in other ways. For example, a CU or DU may be divided into functions with more protocol layers. For example, a CU or DU may also be divided into partial processing functions with protocol layers. In one design, part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are set at CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are set at DU. In another design, the functionality of a CU or DU may also be partitioned by traffic type or other system requirements. For example, according to the time delay division, the function of processing time which needs to meet the time delay requirement is set in the DU, and the function which does not need to meet the time delay requirement is set in the CU. In another design, a CU may also have one or more functions of the core network. One or more CUs may be centrally located, as well as separately located. For example, the CUs can be arranged on the network side to facilitate centralized management. The DU may have multiple radio functions, or the radio functions may be set remotely.

Fig. 2 is a schematic diagram of data transmission by a terminal device in an RRC inactive state in the prior art, as shown in fig. 2, the terminal device first sends an RRC connection recovery request carrying a UE context identifier (e.g. I-RNTI) to a DU, the DU sends an access request carrying the UE context identifier to a CU, and then the CU establishes a UE context with the DU based on the access request, thereby the terminal device recovers to an RRC connection state, and finally, the terminal device, the DU and the CU perform uplink and downlink data transmission. The uplink data transmission process between the DU and the CU comprises the following steps: the DU performs data processing on the uplink data and transmits the processed data to the CU.

In the prior art, before the CU and the DU establish the UE context, the DU does not retain the UE context corresponding to the terminal device, which results in that the DU cannot process uplink data. After the CU establishes the UE context with the DU, the DU may complete processing of uplink data according to the established UE context. Therefore, in the prior art, the establishment of UE context with DU becomes a key in the uplink data transmission process.

However, for small data transmission scenarios, such as the data transmission scenario of the internet of things, the number and the specification of the uplink data are smaller, if the UE context of the CU and the DU needs to be established first for each uplink data transmission, the data transmission process is complicated, and the efficiency is low.

For example, for a device such as an intelligent water meter, the corresponding uplink data only includes water consumption data, device health status data, and the like, the uplink data can be transmitted through one or a small number of uplink data packets, and the device does not have expected downlink data. In this case, the existing uplink data transmission method has the problems of complicated process and low efficiency. In addition, when the number of devices is large, if operations such as anchor point transfer or path conversion are required, a large amount of signaling overhead is also caused, so that waste of network resources is caused.

The embodiment of the application provides an uplink data processing method, an uplink data processing device, network equipment, terminal equipment and a medium, which are used for solving the technical problems existing in the prior art.

The method and the device are based on the same application conception, and because the principle of solving the problems by the method and the device is similar, the implementation of the device and the method can be mutually referred to, and the repetition is omitted.

Fig. 3 is a schematic diagram of an uplink data processing method according to an embodiment of the present application, as shown in fig. 3, the uplink data processing method specifically includes the following steps:

S1, when the radio resource control RRC is inactive, the terminal equipment sends a first message to a first distribution unit DU.

The first message includes uplink data, and the first message is used for requesting RRC recovery. The first DU is a service DU corresponding to the terminal equipment, and the first CU corresponding to the first DU is a service CU corresponding to the terminal equipment.

S2, the first DU receives a first message sent by the terminal equipment UE in the radio resource control RRC inactive state, and performs data processing on uplink data to obtain first processing data.

Specifically, the first DU performs L2 (layer 2) processing on uplink data, that is, data processing of the MAC and RLC layers, thereby obtaining first processed data.

S3, the first DU sends the first processing data to the first centralized unit CU, and the operation of releasing the UE context corresponding to the terminal equipment is not executed.

Specifically, after receiving the first processing data, the first CU may perform data processing on the first processing data, including PDCP and SDAP processing, so as to obtain second processing data, and send the second processing data to the core network device, so as to complete uplink data transmission of the terminal device.

In this embodiment, the first DU does not perform the operation of releasing the UE context corresponding to the terminal device, which specifically includes the following two cases:

Case one:

After the uplink data processing is finished by presetting in a program setting mode and the like, the first DU defaults to not release the UE context; and when receiving the UE context release indication message sent by the first CU, releasing the UE context corresponding to the terminal equipment.

And a second case:

after the uplink data processing is completed, the first DU defaults to release the UE context, and after the first CU sends an indication message for not releasing the UE context to the first DU, the first DU does not release the UE context according to the indication message.

In order to facilitate understanding, the embodiments of the present application take the case two as an example, and the technical solution of the present application is explained and explained, it is to be understood that the technical solution of the present application is not limited to the case two, and the solution of the embodiments of the present application may be correspondingly changed to be applicable to the case one.

Referring to fig. 3, when the operation of releasing the UE context corresponding to the terminal device is not performed by the first DU is specifically the case two, the method further includes:

S4, the first CU sends a second message to the first DU, wherein the second message is used for indicating that the first DU does not execute the operation of releasing the UE context corresponding to the terminal equipment.

Correspondingly, the first DU receives the second message sent by the first CU, and the operation of releasing the UE context corresponding to the terminal equipment is not executed according to the second message, so that the UE context corresponding to the terminal equipment is reserved in the first DU. When the next uplink data processing is performed, the first DU may directly perform data processing on the uplink data according to the reserved UE context, to obtain first processing data.

In this embodiment, when the first DU receives uplink data sent by the terminal device in the RRC inactive state, the first DU processes the uplink data and sends the processed uplink data to the first CU. In addition, the first DU does not execute the operation of releasing the UE context corresponding to the terminal device, and when performing the next uplink data processing, the first DU can process the next uplink data according to the unreleased UE context, without establishing the corresponding UE context with the first CU again, so that the transmission flow of the uplink data can be simplified, and the data transmission efficiency can be improved.

It should be noted that, the uplink data processing method provided by the embodiment of the present application may be applied to an application scenario in which the terminal device performs small data transmission with the service network device corresponding to the terminal device currently, where the application scenario may be specifically divided into multiple situations, such as whether the service CU corresponding to the terminal device currently stores the UE context corresponding to the terminal device, whether the service DU corresponding to the terminal device currently stores the UE context corresponding to the terminal device, and so on. The following specifically explains the uplink data processing method in different cases.

In some embodiments, when the service DU currently corresponding to the terminal device stores the UE context corresponding to the terminal device, the flow of the uplink data processing method is explained. The embodiment specifically corresponds to a case where the first DU does not perform an operation of releasing the UE context corresponding to the terminal device in the previous uplink data processing procedure.

Fig. 4 is a schematic diagram of an uplink data processing method according to an embodiment of the present application, as shown in fig. 4, the uplink data processing method specifically includes the following steps:

And S100a, when a first control message is sent to the terminal equipment to instruct the terminal equipment to enter a Radio Resource Control (RRC) inactive state, a second control message is sent to the first DU, wherein the second control message is used for instructing the first DU not to execute the operation of releasing the UE context corresponding to the terminal equipment.

The first CU is a CU in a service network device currently corresponding to the terminal device, that is, the first CU is a service CU, and the first DU is a DU in the service network device currently corresponding to the terminal device, that is, the first DU is a service DU.

In addition, the UE context specifically includes configurations of SRBs (SIGNALLING RADIO BEARER, signaling radio bearers) and DRBs ((Data Radio Bearer, data radio bearers)) before the terminal device enters the RRC inactive state, where the DRB configurations include Qos (Quality Of Service ) information of the DRBs and TNL (transport network layer) addresses of UL user planes, and mapping relations between the DRBs and Qos flows, and the like.

And S100b, the terminal equipment enters an RRC inactive state according to the first control message.

And S100c, the first DU does not execute the operation of releasing the UE context corresponding to the terminal equipment according to the second control message.

S101, when the terminal equipment in the RRC inactive state needs to send uplink data, a first message is sent to a corresponding first distribution unit DU, wherein the first message comprises the uplink data and an RRC recovery request.

The uplink Data (UL Data) may specifically be uplink small Data (UL SMALL DATA). The RRC recovery request (Rrcresumerequest) includes an identity corresponding to the terminal device.

The present embodiment is different from the prior art in that the first message sent by the terminal device to the first DU includes uplink data to be sent in addition to the RRC recovery request.

Optionally, the first message further includes auxiliary information, specifically, for example, whether there is any subsequent uplink data (Subsequent UL Data) to be sent, the data amount of the subsequent uplink data, whether there is any downlink data, and so on.

S102, after receiving the first message sent by the terminal device, the first DU sends an RRC restoration request to the first CU.

The first DU sends an RRC recovery request to the first CU through the F1 interface, where the RRC recovery request sent by the first DU to the first CU includes a Cause Value (Cause Value) as small data. Optionally, auxiliary information in the first message may also be included.

S103, the first DU performs data processing on the uplink data to obtain first processing data.

Specifically, in the previous uplink data processing process, the first DU does not perform an operation of releasing the UE context corresponding to the terminal device, so that the UE context corresponding to the terminal device remains in the first DU, and thus, the first DU performs L2 (layer 2) processing on uplink data according to the UE context of the remaining terminal device, that is, data processing of the MAC and RLC layers, thereby obtaining first processing data.

S104, the first DU transmits the first processing data to the first CU.

S105, the first CU receives the first processing data transmitted by the first DU and performs data transmission processing.

It can be understood that when there is subsequent uplink data, the terminal device sends the subsequent uplink data to the first DU, the first DU processes the subsequent uplink data according to the reserved UE context, and sends the processed uplink data to the first CU, and after the first CU processes the processed uplink data, the first CU sends the processing result to the core network device.

S106, the first CU determines the RRC state of the terminal equipment according to the auxiliary information.

Specifically, if the first CU determines that there is no subsequent uplink data and the terminal device does not have the expected downlink data according to the auxiliary information, the first CU determines that the RRC state of the terminal device is in the RRC inactive state, and at this time, the first CU sends a corresponding message to instruct the terminal device to maintain the RRC inactive state.

S107, the first CU sends a second message to the first DU, where the second message is used to instruct the first DU not to perform an operation of releasing the UE context corresponding to the terminal device.

And S108, after receiving the second message sent by the first CU, the first DU does not execute the operation of releasing the UE context corresponding to the terminal equipment, so that the first DU can perform data processing according to the reserved UE context without establishing the UE context with the first CU when performing the next uplink data transmission.

The embodiment provides an uplink data processing method, when a first DU receives uplink data sent by a terminal device in an RRC inactive state, the first DU processes the uplink data according to a reserved UE context and sends the processed data to a first CU, and the processing procedure does not need to establish the UE context with the first CU. And then, the first CU sends a second message indicating to reserve the UE context corresponding to the terminal to the first DU, so that the first DU continues to reserve the UE context corresponding to the terminal after finishing the processing of the uplink data, and when the next uplink data processing is carried out, the first DU can process the uplink data without establishing the corresponding UE context with the first CU, thereby simplifying the transmission flow of the uplink data and improving the data transmission efficiency.

In some embodiments, when the service DU currently corresponding to the terminal device does not store the UE context corresponding to the terminal device and the service CU stores the UE context corresponding to the terminal device, the flow of the uplink data processing method is explained. The embodiment specifically corresponds to a case that the first DU does not retain the UE context corresponding to the terminal device, and the first CU retains the UE context corresponding to the terminal device.

Fig. 5 is a schematic diagram of an uplink data processing method according to an embodiment of the present application, as shown in fig. 5, the uplink data processing method specifically includes the following steps:

s200a, when the first CU sends a first control message to the terminal device to instruct the terminal device to enter an RRC inactive state, the first CU sends a second control message to the second DU, where the second control message is used to instruct the second DU not to perform an operation of releasing the UE context corresponding to the terminal device.

The first CU is a CU in a service network device currently corresponding to the terminal device, that is, the first CU is a service CU, the second DU is a DU in the service network device currently corresponding to the terminal device, the service network device further includes a first DU, the first DU is a service DU, the second DU is a DU in which an operation of releasing a UE context corresponding to the terminal device is not performed in a previous uplink data processing process, and the second DU is different from the first DU.

And S200b, the terminal equipment enters an RRC inactive state according to the first control message.

And S200c, the second DU does not execute the operation of releasing the UE context corresponding to the terminal equipment according to the second control message.

S201, when the terminal equipment in the RRC inactive state needs to send uplink data, a first message is sent to a corresponding first DU, and the first message comprises the uplink data and an RRC recovery request.

The uplink data may specifically be uplink small data. The RRC recovery request includes an identity corresponding to the terminal device.

Optionally, the first message further includes auxiliary information, specifically, for example, whether there is subsequent uplink data to be sent, the data amount of the subsequent uplink data, whether there is promising downlink data, and so on.

S202, after receiving the first message sent by the terminal device, the first DU sends an RRC restoration request to the first CU.

S203, the first CU initiates a UE context establishment request to the first DU based on the reserved UE context.

S204, the first DU receives a UE context establishment request initiated by the first CU based on the stored UE context, and establishes the UE context.

And S205, performing data processing on uplink data by the first DU according to the established UE context to obtain first processing data.

Specifically, the first DU performs L2 (layer 2) processing on uplink data according to the established UE context, that is, data processing of the MAC and RLC layers, thereby obtaining first processed data.

S206, the first DU transmits the first processing data to the first CU.

S207, the first CU receives the first processing data transmitted by the first DU and performs data transmission processing.

S208, the first CU determines the RRC state of the terminal equipment according to the auxiliary information.

S209, when the first CU determines that the RRC state of the terminal equipment is the RRC inactive state, the first CU sends a second message to the first DU, wherein the second message is used for indicating that the first DU does not execute the operation of releasing the UE context corresponding to the terminal equipment.

And S210, after receiving the second message sent by the first CU, the first DU does not execute the operation of releasing the UE context corresponding to the terminal equipment, so that the first DU can perform data processing according to the reserved UE context without establishing the UE context with the first CU when performing the next uplink data transmission.

S211, optionally, the first CU sends a third message to a second DU that retains the UE context corresponding to the terminal device, where the third message is used to instruct the second DU to release the UE context corresponding to the terminal device, and the second DU is different from the first DU.

S212, the second DU releases the UE context of the terminal equipment according to the third message so as to avoid waste of network resources.

The embodiment provides an uplink data processing method, when a first DU receives uplink data sent by a terminal device in an RRC inactive state, an RRC recovery request is sent to a first CU storing a UE context, so as to establish the UE context, and thus the uplink data can be processed according to the established UE context. In addition, the first CU sends the second message to the first DU, so that after the processing of the uplink data is completed, the first DU does not execute an operation of releasing the UE context corresponding to the terminal device, so as to reserve the UE context corresponding to the terminal device, and thus, when the next uplink data processing is performed, the first DU can process the uplink data without establishing a corresponding UE context with the first CU, thereby simplifying a transmission flow of the uplink data and improving data transmission efficiency.

In some embodiments, the flow of the uplink data processing method is explained when the service DU and the service CU corresponding to the terminal device currently do not store the UE context corresponding to the terminal device.

Fig. 6 is a schematic diagram of an uplink data processing method according to an embodiment of the present application, as shown in fig. 6, the uplink data processing method specifically includes the following steps:

S301, when a terminal device in a radio resource control RRC inactive state needs to send uplink data, a first message is sent to a corresponding first distribution unit DU, wherein the first message comprises the uplink data and an RRC recovery request. Optionally, the first message further includes auxiliary information.

The service network device further comprises a first CU, wherein the first DU is a DU in the service network device currently corresponding to the terminal device, that is, the first DU is a service DU, and the first CU is a service DU. The UE context corresponding to the terminal device is not stored in both the first CU and the first DU.

S302, after receiving the first message sent by the terminal device, the first DU sends an RRC restoration request to the first CU.

S303, the first CU sends a UE context acquisition request to the second CU according to the RRC recovery request.

The second CU is an anchor CU of the terminal device, that is, the second CU stores UE context corresponding to the terminal device.

S304, the second CU sends the UE context corresponding to the terminal equipment to the first CU based on the UE context acquisition request.

S305, the first CU initiates a UE context setup request to the first DU based on receiving the acquired UE context.

S306, the first DU receives a UE context establishment request initiated by the first CU based on the received acquired UE context, and establishes the UE context.

S307, the first DU performs data processing on the uplink data according to the established UE context to obtain first processing data.

S308, the first DU transmits the first processing data to the first CU.

S309, the first CU receives the first processing data transmitted by the first DU, and performs data transmission processing.

S310, the first CU determines the RRC state of the terminal equipment according to the auxiliary information.

And S311, when the first CU determines that the RRC state of the terminal equipment is the RRC inactive state, the first CU sends a second message to the first DU, wherein the second message is used for indicating that the first DU does not execute the operation of releasing the UE context corresponding to the terminal equipment.

And S312, after the first DU receives the second message sent by the first CU, the operation of releasing the UE context corresponding to the terminal equipment is not executed, so that the first DU can perform data processing according to the reserved UE context without establishing the UE context with the first CU when the next uplink data transmission is performed.

S313, optionally, the first CU sends a fourth message to the second CU that retains the UE context corresponding to the terminal device, where the fourth message is used to instruct the second CU to release the UE context corresponding to the terminal device.

And S314, the second CU releases the UE context of the terminal equipment according to the fourth message so as to avoid waste of network resources.

The embodiment provides an uplink data processing method, when a first DU receives uplink data sent by a terminal device in an RRC inactive state, the first DU sends an RRC recovery request to a first CU, the first CU obtains a UE context corresponding to the terminal device from a second CU stored with the UE context based on the RRC recovery request, and then establishes the UE context, so that the first DU can process the uplink data according to the established UE context. In addition, the first CU sends a second message indicating that the UE context corresponding to the terminal is reserved to the first DU, so that after the processing of uplink data is completed, the first DU does not execute an operation of releasing the UE context corresponding to the terminal device, that is, the UE context corresponding to the terminal is reserved, so that when the next uplink data processing is performed, the first DU can process the uplink data without establishing a corresponding UE context with the first CU, thereby simplifying a transmission flow of the uplink data and improving data transmission efficiency.

In some embodiments, a first distribution unit DU of a network device is provided, fig. 7 is a schematic diagram of the first distribution unit, and as shown in fig. 7, the first distribution unit 600 includes a memory 610, a transceiver 620, and a processor 630.

Wherein the memory 610 is for storing a computer program. A transceiver 620 for transceiving data under the control of a processor 630. A processor 630 for reading the computer program in the memory 610 and performing the following operations: receiving a first message sent by terminal equipment (UE) in a Radio Resource Control (RRC) inactive state, wherein the first message comprises uplink data and is used for requesting RRC recovery; performing data processing on the uplink data to obtain first processing data; and sending the first processing data to the first centralized unit CU, and not executing the operation of releasing the UE context corresponding to the terminal equipment.

In fig. 7, a bus architecture may comprise any number of interconnecting buses and bridges, with various circuits of one or more processors, represented in particular by processor 630, and memory, represented in memory 610. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 620 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, and the like. The processor 630 is responsible for managing the bus architecture and general processing, and the memory 610 may store data used by the processor 630 in performing operations.

The processor 630 may be a Central Processing Unit (CPU), application SPECIFIC INTEGRATED Circuit (ASIC), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA), or complex Programmable logic device (Complex Programmable Logic Device, CPLD), or may employ a multi-core architecture.

In some embodiments, the first message further includes an RRC resume request for requesting RRC resume;

after receiving the first message sent by the terminal equipment UE in the radio resource control RRC inactive state, the operations further include:

an RRC resume request is sent to the first CU.

In some embodiments, in a previous uplink data processing process, if the first DU does not perform an operation of releasing the UE context corresponding to the terminal device, performing data processing on the uplink data to obtain first processing data, including:

And carrying out data processing on the uplink data according to the reserved UE context to obtain first processing data.

In some embodiments, if the UE context corresponding to the terminal device is not reserved in the first DU, performing data processing on the uplink data to obtain first processed data, where the first processed data includes:

Receiving a UE context establishment request initiated by a first CU based on a UE context corresponding to terminal equipment, and establishing the UE context;

And carrying out data processing on the uplink data according to the established UE context to obtain first processing data.

In some embodiments, a first central unit CU of a network device is provided, comprising a memory, a transceiver, and a processor, wherein the memory is configured to store a computer program. And a transceiver for transceiving data under the control of the processor. A processor for reading the computer program in the memory and performing the following operations: receiving first processing data sent by a first distribution unit DU, wherein the first processing data is obtained by performing data processing on uplink data contained in a first message after the first DU receives the first message sent by terminal equipment UE in a radio resource control RRC inactive state; and sending a second message to the first DU, wherein the second message is used for indicating that the first DU does not execute the operation of releasing the UE context corresponding to the terminal equipment.

Regarding the structure of the first concentration unit CU, reference may be made to the structure definition of the first distribution unit DU in fig. 7, which is not described here again.

In some embodiments, the operations further comprise:

And when the first control message is sent to the terminal equipment to instruct the terminal equipment to enter an RRC inactive state, sending a second control message to the first DU, wherein the second control message is used for instructing the first DU not to execute the operation of releasing the UE context corresponding to the terminal equipment.

In some embodiments, if the first CU retains the UE context corresponding to the terminal device, the method further includes:

And based on the UE context corresponding to the terminal equipment, initiating a UE context establishment request to the first DU, wherein the UE context establishment request is used for indicating the first DU to establish the UE context, and performing data processing on uplink data according to the established UE context to obtain first processing data.

In some embodiments, the operations further comprise:

And sending a third message to the second DU, wherein the third message is used for indicating the second DU to release the UE context corresponding to the terminal equipment, the second DU is a DU which does not execute the operation of releasing the UE context corresponding to the terminal equipment in the previous uplink data processing process, and the second DU is different from the first DU.

receiving a UE context corresponding to a terminal device sent by a second CU based on the UE context acquisition request;

and initiating a UE context establishment request to the first DU based on the UE context, wherein the UE context establishment request is used for indicating the first DU to establish the UE context, and performing data processing on uplink data according to the established UE context to obtain first processing data.

In some embodiments, the operations further comprise:

In some embodiments, a network device is provided, including the first distribution unit DU described above, and the first concentration unit CU described above.

The network device may specifically adopt a CU-DU separation architecture, and the structure of the network device may refer to fig. 1 and corresponding explanation, which are not described herein.

In some embodiments, a terminal device is provided, fig. 8 is a schematic diagram of the terminal device, and as shown in fig. 8, the terminal device 700 includes a memory 710, a transceiver 720, and a processor 730. Wherein the memory is used for storing a computer program. And a transceiver for transceiving data under the control of the processor. A processor for reading the computer program in the memory and performing the following operations: when the Radio Resource Control (RRC) is in an inactive state, if uplink data needs to be sent, generating a first message, wherein the first message comprises the uplink data; and sending the first message to a first Distribution Unit (DU), wherein the first message is used for indicating the first DU to perform data processing on the uplink data to obtain first processing data, and sending the first processing data to a first Concentration Unit (CU) without executing the operation of releasing the UE context corresponding to the terminal equipment.

Optionally, referring to fig. 8, the terminal device further comprises a user interface 740.

In fig. 8, a bus architecture may be comprised of any number of interconnected buses and bridges, and in particular one or more processors represented by processor 730 and various circuits of the memory represented by memory 710. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 720 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including transmission media including wireless channels, wired channels, optical cables, and the like. The user interface 740 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 730 is responsible for managing the bus architecture and general processing, and the memory 710 may store data used by the processor 730 in performing operations.

Alternatively, the processor 730 may be a CPU (central processing unit), an ASIC (Application SPECIFIC INTEGRATED Circuit), an FPGA (Field-Programmable gate array) or a CPLD (Complex Programmable Logic Device ), and the processor may also employ a multi-core architecture.

The processor is operable to execute any of the methods provided by the embodiments of the present application in accordance with the obtained executable instructions by invoking a computer program stored in a memory. The processor and the memory may also be physically separate.

It should be noted that, the above device provided in the embodiment of the present invention can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

In some embodiments, an upstream data processing apparatus is provided, which is applied to a first distribution unit DU.

Fig. 9 is a schematic diagram of an uplink data processing apparatus according to an embodiment of the present application, as shown in fig. 9, the uplink data processing apparatus 800 includes:

The receiving unit 810 is configured to receive a first message sent by a terminal device UE in a radio resource control RRC inactive state, where the first message includes uplink data, and the first message is used to request RRC recovery.

And the processing unit 820 is configured to perform data processing on the uplink data to obtain first processed data.

The sending unit 830 is configured to send the first processing data to the first concentrating unit CU.

The processing unit 820 is further configured to not perform an operation of releasing the UE context corresponding to the terminal device.

In some embodiments, the receiving unit 810 is further configured to: and receiving a second message sent by the first CU.

In some embodiments, processing unit 820 is further configured to: and according to the second message, not executing the operation of releasing the UE context corresponding to the terminal equipment.

In some embodiments, the sending unit 830 is further configured to: an RRC resume request is sent to the first CU.

In some embodiments, processing unit 820 is further configured to: and carrying out data processing on the uplink data according to the reserved UE context to obtain first processing data.

In some embodiments, the receiving unit 810 is further configured to: and receiving a UE context establishment request initiated by the first CU based on the UE context corresponding to the terminal equipment, and establishing the UE context.

In some embodiments, processing unit 820 is further configured to: and carrying out data processing on the uplink data according to the established UE context to obtain first processing data.

In some embodiments, an upstream data processing device is provided, which is applied to a first concentration unit CU.

Fig. 10 is a schematic diagram of an uplink data processing apparatus according to an embodiment of the present application, as shown in fig. 10, the uplink data processing apparatus 900 includes:

the receiving unit 910 is configured to receive first processing data sent by the first distribution unit DU, where the first processing data is obtained by performing data processing on uplink data included in a first message after the first message sent by the terminal device UE in an inactive state of radio resource control RRC is received by the first DU.

A sending unit 920, configured to send a second message to the first DU, where the second message is used to instruct the first DU to not perform an operation of releasing the UE context corresponding to the terminal device.

In some embodiments, the receiving unit 910 is further configured to: and receiving an RRC recovery request which is sent by the first DU and contained in the first message.

In some embodiments, the sending unit 920 is further configured to: when a first control message is sent to the terminal equipment to instruct the terminal equipment to enter an RRC inactive state, a second control message is sent to the first DU, wherein the second control message is used for instructing the first DU not to execute the operation of releasing the UE context corresponding to the terminal equipment

In some embodiments, the sending unit 920 is further configured to: and based on the UE context corresponding to the terminal equipment, initiating a UE context establishment request to the first DU, wherein the UE context establishment request is used for indicating the first DU to establish the UE context, and performing data processing on uplink data according to the established UE context to obtain first processing data.

In some embodiments, the sending unit 920 is further configured to: and sending a third message to the second DU, wherein the third message is used for indicating the second DU to release the UE context corresponding to the terminal equipment, the second DU is a DU which does not execute the operation of releasing the UE context corresponding to the terminal equipment in the previous uplink data processing process, and the second DU is different from the first DU.

In some embodiments, the sending unit 920 is further configured to: and sending a UE context acquisition request to a second CU according to the RRC recovery request, wherein the second CU is an anchor CU of the terminal equipment.

In some embodiments, the receiving unit 910 is further configured to: and receiving the UE context corresponding to the terminal equipment sent by the second CU based on the UE context acquisition request.

In some embodiments, the sending unit 920 is further configured to: and initiating a UE context establishment request to the first DU based on the UE context, wherein the UE context establishment request is used for indicating the first DU to establish the UE context, and performing data processing on uplink data according to the established UE context to obtain first processing data.

In some embodiments, referring to fig. 10, the upstream data processing apparatus 900 includes: and a processing unit 930, configured to perform data processing on the first processing data after receiving the first processing data, including PDCP and SDAP processing, so as to obtain second processing data.

In some embodiments, the sending unit 920 is further configured to: and sending a fourth message to the second CU, wherein the fourth message is used for indicating the second CU to release the UE context corresponding to the terminal equipment.

In some embodiments, an uplink data processing apparatus is provided, which is applied to a terminal device.

Fig. 11 is a schematic diagram of an uplink data processing apparatus according to an embodiment of the present application, as shown in fig. 11, the uplink data processing apparatus 1000 includes:

A processing unit 1010, configured to generate a first message when the radio resource control RRC is inactive, where the first message includes uplink data if the uplink data needs to be sent;

A sending unit 1020, configured to send a first message to the first distribution unit DU, where the first message is configured to instruct the first DU to perform data processing on the uplink data, obtain first processing data, and send the first processing data to the first centralized unit CU, and not perform an operation of releasing the UE context corresponding to the terminal device.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In some embodiments, a computer readable storage medium is provided, in which computer executable instructions are stored, which when executed by a processor are configured to implement the steps of an upstream data processing method in an embodiment of the present application.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor including, but not limited to, magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical memory (e.g., CD, DVD, BD, HVD, etc.), and semiconductor memory (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid State Disk (SSD)), etc.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. An uplink data processing method applied to a first distribution unit DU, comprising:

Receiving a first message sent by terminal equipment (UE) in a Radio Resource Control (RRC) inactive state, wherein the first message comprises uplink data and is used for requesting RRC recovery; the first message further comprises auxiliary information and an RRC recovery request for requesting RRC recovery, wherein the auxiliary information is used for determining the RRC state of the terminal equipment;

performing data processing on the uplink data to obtain first processing data;

The first processing data is sent to a first centralized unit CU, and the operation of releasing the UE context corresponding to the terminal equipment is not executed;

The operation of releasing the UE context corresponding to the terminal device is not performed, including:

Receiving a second message sent by the first CU, and not executing the operation of releasing the UE context corresponding to the terminal equipment according to the second message;

And after receiving the first message sent by the terminal equipment, sending an RRC recovery request comprising the auxiliary information to the first CU, so that the first CU determines the RRC state of the terminal equipment according to the auxiliary information.

2. The method of claim 1, wherein, in a previous uplink data processing process, if the first DU does not perform an operation of releasing the UE context corresponding to the terminal device, performing data processing on the uplink data to obtain first processed data, including:

3. The method of claim 1, wherein if the UE context corresponding to the terminal device is not reserved in the first DU, performing data processing on the uplink data to obtain first processed data, including:

receiving a UE context establishment request initiated by a first CU based on the UE context corresponding to the terminal equipment, and establishing the UE context;

4. An uplink data processing method applied to a first central unit CU, comprising:

Receiving first processing data sent by a first distribution unit DU, wherein the first processing data is obtained by performing data processing on uplink data contained in a first message after the first message sent by terminal equipment UE in a radio resource control RRC inactive state is received by the first DU; the first message further comprises auxiliary information and an RRC recovery request for requesting RRC recovery, wherein the auxiliary information is used for determining the RRC state of the terminal equipment;

sending a second message to the first DU, where the second message is used to instruct the first DU not to perform an operation of releasing the UE context corresponding to the terminal device;

when a first control message is sent to the terminal equipment to instruct the terminal equipment to enter an RRC inactive state, a second control message is sent to the first DU, wherein the second control message is used for instructing the first DU not to execute the operation of releasing the UE context corresponding to the terminal equipment;

receiving an RRC recovery request including the auxiliary information sent by the first DU; and determining the RRC state of the terminal equipment according to the auxiliary information.

5. The method of claim 4, wherein if the first CU retains the UE context corresponding to the terminal device, further comprising:

6. The method as recited in claim 5, further comprising:

7. The method of claim 4, wherein if the UE context corresponding to the terminal device is not reserved by the first CU, further comprising:

8. The method as recited in claim 7, further comprising:

9. An uplink data processing method applied to a terminal device, comprising the following steps:

When the Radio Resource Control (RRC) is in an inactive state, if uplink data needs to be sent, generating a first message, wherein the first message comprises the uplink data; the first message further comprises auxiliary information and an RRC recovery request for requesting RRC recovery, wherein the auxiliary information is used for determining the RRC state of the terminal equipment;

transmitting the first message to a first Distribution Unit (DU) so that the first DU transmits an RRC recovery request including the auxiliary information to a first CU, and the first CU determines the RRC state of the terminal equipment according to the auxiliary information; the first message is used for indicating a first DU to perform data processing on the uplink data to obtain first processing data, and sending the first processing data to a first centralized unit CU without performing an operation of releasing a UE context corresponding to the terminal device;

The first message is configured to instruct the first DU not to perform an operation of releasing the UE context corresponding to the terminal device, including:

the first message is used for indicating the first DU to receive a second message sent by the first CU, and the operation of releasing the UE context corresponding to the terminal equipment is not executed according to the second message.

10. A first distribution unit DU of a network device, comprising a memory, a transceiver, and a processor:

performing data processing on the uplink data to obtain first processing data;

11. The distribution unit of claim 10, wherein in the previous uplink data processing process, if the first DU does not perform the operation of releasing the UE context corresponding to the terminal device, the data processing is performed on the uplink data to obtain first processed data, including:

12. The distribution unit of claim 10, wherein if the UE context corresponding to the terminal device is not reserved in the first DU, performing data processing on the uplink data to obtain first processing data, includes:

13. A first central unit CU of a network device, comprising a memory, a transceiver, and a processor:

The operations further comprise:

14. The hub unit of claim 13, wherein if the UE context corresponding to the terminal device is reserved by the first CU, further comprising:

15. The concentration unit of claim 14 wherein the operations further comprise:

16. The hub unit of claim 13, wherein if the UE context corresponding to the terminal device is not reserved by the first CU, further comprising:

17. The concentration unit of claim 16 wherein the operations further comprise:

18. A network device comprising a first distribution unit DU according to any one of claims 10-12 and a first concentration unit CU according to any one of claims 13-17.

19. A terminal device comprising a memory, a transceiver, and a processor:

When the Radio Resource Control (RRC) is in an inactive state, if uplink data needs to be sent, generating a first message, wherein the first message comprises the uplink data; the first message further comprises auxiliary information and an RRC recovery request for requesting RRC recovery, wherein the auxiliary information is used for determining the RRC state of the terminal equipment; transmitting the first message to a first Distribution Unit (DU) so that the first DU transmits an RRC recovery request including the auxiliary information to a first CU, and the first CU determines the RRC state of the terminal equipment according to the auxiliary information; the first message is used for indicating a first DU to perform data processing on the uplink data to obtain first processing data, and sending the first processing data to a first centralized unit CU without performing an operation of releasing a UE context corresponding to the terminal device;

20. An uplink data processing apparatus, characterized by being applied to a first distribution unit DU, comprising:

A receiving unit, configured to receive a first message sent by a terminal device UE in a radio resource control RRC inactive state, where the first message includes uplink data, and the first message is used to request RRC recovery; the first message further comprises auxiliary information and an RRC recovery request for requesting RRC recovery, wherein the auxiliary information is used for determining the RRC state of the terminal equipment;

The processing unit is further configured to not perform an operation of releasing the UE context corresponding to the terminal device;

the processing unit is specifically configured to receive a second message sent by the first CU, and not execute an operation of releasing the UE context corresponding to the terminal device according to the second message;

The sending unit further includes sending, after receiving the first message sent by the terminal device, an RRC restoration request including the auxiliary information to the first CU, so that the first CU determines an RRC state of the terminal device according to the auxiliary information.

21. An upstream data processing device, applied to a first concentration unit CU, comprising:

A receiving unit, configured to receive first processing data sent by a first distribution unit DU, where the first processing data is obtained by performing data processing on uplink data included in a first message after the first message sent by a terminal device UE in an inactive state of radio resource control RRC is received by the first DU; the first message further comprises auxiliary information and an RRC recovery request for requesting RRC recovery, wherein the auxiliary information is used for determining the RRC state of the terminal equipment;

a sending unit, configured to send a second message to the first DU, where the second message is configured to instruct the first DU not to perform an operation of releasing a UE context corresponding to the terminal device;

the sending unit is further configured to send a second control message to the first DU when sending a first control message to the terminal device to instruct the terminal device to enter an RRC inactive state, where the second control message is used to instruct the first DU not to perform an operation of releasing a UE context corresponding to the terminal device;

The receiving unit further includes receiving an RRC restoration request including the auxiliary information, which is sent by the first DU, so as to determine an RRC state of the terminal device according to the auxiliary information.

22. An uplink data processing apparatus, characterized in that it is applied to a terminal device, the apparatus comprising:

The processing unit is used for generating a first message when the Radio Resource Control (RRC) is in an inactive state and if uplink data is required to be sent, wherein the first message comprises the uplink data; the first message further comprises auxiliary information and an RRC recovery request for requesting RRC recovery, wherein the auxiliary information is used for determining the RRC state of the terminal equipment;

A transmitting unit, configured to transmit the first message to a first distribution unit DU, so that the first DU transmits an RRC restoration request including the auxiliary information to a first CU, and the first CU determines an RRC state of the terminal device according to the auxiliary information; the first message is used for indicating a first DU to perform data processing on the uplink data to obtain first processing data, and sending the first processing data to a first centralized unit CU without performing an operation of releasing a UE context corresponding to the terminal device;

23. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to carry out the upstream data processing method according to any one of claims 1 to 9.