CN114126090B

CN114126090B - Uplink data processing method, device, network equipment, terminal equipment and medium

Info

Publication number: CN114126090B
Application number: CN202010873061.4A
Authority: CN
Inventors: 孙建成; 傅婧; 周叶; 梁靖
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: 2024-01-12
Anticipated expiration: 2040-08-26
Also published as: CN114126090A

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; processing the uplink data according to the first message to obtain first processed data; transmitting the first processing data to the first concentrating unit CU; and sending a second message to the terminal equipment. In the method, when uplink data sent by the terminal equipment in the RRC inactive state is received, the uplink data is processed and the processed data is sent, and a message for indicating the terminal equipment to maintain the RRC inactive state is sent to the terminal equipment, so that the terminal equipment does not need to be restored to the Connected state in the processing process of the uplink data, and when the method is applied to a transmission scene of small data, the transmission flow of the uplink data can be simplified, and the data transmission efficiency is improved.

Description

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

Technical Field

The present disclosure 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 stratum in a long term evolution (Long Term Evolution, LTE) system.

The Inactive state is characterized in that, from the core network, the terminal device is still in a connection management cm_connected state (non-access stratum state), but the air interface resources of the terminal device are already released. The Inactive state and the IDLE state are very similar, and the difference between the Inactive state and the IDLE state is that the terminal device can quickly recover to the Connected state in the Inactive state.

In the current 5G system, when the terminal device in the Inactive state performs uplink data transmission each time, the terminal device needs to be restored to the Connected state first, and then performs data transmission. However, the current data transmission process is cumbersome 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, so as to solve the technical problems 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;

processing the uplink data according to the first message to obtain first processed data;

transmitting the first processing data to a first central unit CU;

and sending a second message to the terminal equipment, wherein the second message is used for indicating the terminal equipment to maintain the RRC inactive state.

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

and processing the uplink data according to the first message to obtain first processed data, including:

sending the RRC recovery request to a first CU, wherein the RRC recovery request comprises the identity of the terminal equipment;

receiving a third message sent by the first CU, and establishing a UE context according to the third message, wherein the third message comprises configuration information of the terminal equipment, and the configuration information is obtained by the first CU according to the identity of the terminal equipment;

and processing the uplink data according to the configuration information to obtain the first processing data.

In some embodiments, the configuration information is determined by the first CU according to the UE context corresponding to the identity;

the configuration information includes one or more of a list of data radio bearer, DRB, configurations in the UE context, or other preset configurations different from any DRB configuration in the list of DRB configurations.

In some embodiments, the RRC recovery request further includes assistance information, the RRC recovery request being for instructing the first CU to determine an RRC state of the terminal device based on the assistance information.

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 processing uplink data included in a first message after the first message sent by terminal equipment in a radio resource control RRC inactive state is received by the first DU, and the first message is used for requesting RRC recovery;

and sending an RRC release message to the first DU, wherein the RRC release message is used for indicating the first DU to send a second message to the terminal equipment, and the second message is used for indicating the terminal equipment to maintain the RRC inactive state.

In some embodiments, the method further comprises:

receiving an RRC recovery request sent by the first DU, wherein the RRC recovery request comprises the identity of the terminal equipment;

determining configuration information of the terminal equipment according to the identity of the terminal equipment;

and sending a third message to the first DU to establish the UE context, wherein the third message comprises the configuration information and is used for indicating the first DU to process the uplink data according to the configuration information so as to obtain the first processing data.

In some embodiments, the RRC recovery request further includes auxiliary information; the method further comprises the steps of:

and determining the RRC state of the terminal equipment according to the auxiliary information.

In some embodiments, the determining the configuration information of the terminal device according to the identity of the terminal device includes:

Determining a second CU according to the identity of the terminal equipment, wherein the second CU is an anchor CU;

sending a fourth message to the second CU, wherein the fourth message comprises the identity of the terminal equipment; the fourth message is used for indicating the second CU to determine the configuration information according to the identity of the terminal equipment;

and receiving a fifth message sent by the second CU, wherein the fifth message comprises the configuration information, and the fifth message is sent by the second CU when the second CU determines not to perform anchor point transfer according to the fourth message.

In some embodiments, further comprising:

the first processing data is sent to the second CU.

In some embodiments, the fifth message further includes data forwarding tunnel information corresponding to the terminal device;

the sending the first processing data to the second CU includes:

and sending a sixth message to the second CU according to the data forwarding tunnel information, wherein the sixth message comprises the first processing data, and the sixth message is used for indicating the second CU to process the first processing data to obtain second processing data and sending the second processing data to core network equipment.

In some embodiments, the method further comprises:

and receiving a seventh message sent by the second CU, wherein the seventh message comprises the configuration information and UE context information corresponding to the terminal equipment, and the seventh message is sent by the second CU when anchor point transfer is determined according to the fourth message.

In some embodiments, the method further comprises:

and carrying out RRC recovery according to the UE context information so as to enable the terminal equipment to enter an RRC connection state.

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, a first message is sent to a first Distribution Unit (DU), wherein the first message comprises the uplink data and is used for requesting RRC recovery;

receiving a second message sent by the first DU;

and determining to maintain the RRC inactive state according to the second message.

In a fourth aspect, the present application provides a first distribution unit DU of a network device, including 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:

transmitting the first processing data to a first central unit 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 some embodiments, the RRC recovery request further includes auxiliary information; the operations further comprise:

In some embodiments, further comprising:

the first processing data is sent to the second CU.

the sending the first processing data to the second CU includes:

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, including a memory, a transceiver, and a processor:

Receiving a second message sent by the first DU;

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 processing the uplink data according to the first message to obtain first processing data;

a transmitting unit configured to transmit the first processing data to a first concentration unit CU; and sending a second message to the terminal equipment, wherein the second message is used for indicating the terminal equipment to maintain the RRC inactive state.

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

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

A transmitting unit configured to transmit the first processing data; and sending an RRC release message to the first DU, wherein the RRC release message is used for indicating the first DU to send a second message to the terminal equipment, and the second message is used for indicating the terminal equipment to maintain the RRC inactive state.

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

a sending unit, configured to send a first message to a first distribution unit DU when the radio resource control RRC is inactive, where the first message includes uplink data, and the first message is used to request RRC recovery;

a receiving unit, configured to receive a second message sent by the first DU;

and the processing unit is used for determining to maintain the RRC inactive state according to the second message.

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; processing the uplink data according to the first message to obtain first processed data; transmitting the first processing data to the first concentrating unit CU; and sending a second message to the terminal equipment, wherein the second message is used for indicating the terminal equipment to maintain the RRC inactive state. In the method, when uplink data sent by the terminal equipment in the RRC inactive state is received, the uplink data is processed and the processed data is sent, and a message for indicating the terminal equipment to maintain the RRC inactive state is sent to the terminal equipment, so that the terminal equipment does not need to be restored to the Connected state in the processing process of the uplink data, and when the method is applied to a transmission scene of small data, the transmission flow of the uplink data can be simplified, and the data transmission efficiency is 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

For a clearer description of the technical solutions of the present application or of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the invention, 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 disclosure;

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 provided in 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 invention. As used in the embodiments of the present 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 that an additional identical element is present in a commodity or system comprising the element.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (Global System Of Mobile Communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE), LTE frequency division duplex (Frequency Division Duplex, FDD), LTE time division duplex (Time Division Duplex, TDD), long term evolution-advanced (Long Term Evolution Advanced, LTE-a), universal mobile system (Universal Mobile Telecommunication System, UMTS), global internet microwave access (Worldwide Interoperability For Microwave Access, wimax), 5G New air interface (New Radio, NR), 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 embodiments 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 device 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, PDAs), 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 the 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 a 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 operable 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 embodiments 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), and the like, which are not limited in the embodiments 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 may specifically adopt 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 a CU and a DU establish a UE context, the DU does not have relevant configuration information corresponding to the UE, so that the DU cannot process uplink data; the process of recovering the terminal equipment to the RRC connection state comprises the process of establishing the UE context by the CU and the DU, so that the DU can acquire the relevant configuration information corresponding to the UE, and the uplink data can be processed. Therefore, in the prior art, the recovery of the terminal device to the RRC connected state becomes a key in the uplink data transmission process.

However, for small data transmission scenarios, such as an internet of things data transmission scenario, the number and the specification of uplink data are smaller, if the terminal device needs to be restored to the RRC connection state 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 according to the first message to obtain first processing data.

Specifically, the first DU sends an RRC recovery request to the first CU according to the first message, receives configuration information of the terminal device sent by the first CU based on the RRC recovery request, and performs L2 (layer 2) processing on uplink data according to the configuration information, that is, data processing of the MAC layer and the RLC layer, so as to obtain first processing data.

S3, the first DU sends the first processing data to the first centralized unit CU.

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.

S4, the first CU sends RRC release information to the first DU, the RRC release information is used for indicating the first DU to send second information to the terminal equipment, and the second information is used for indicating the terminal equipment to maintain the RRC inactive state.

S5, the first DU sends a second message to the terminal equipment according to the RRC release message, wherein the second message is used for indicating the terminal equipment to maintain the RRC inactive state.

And S6, the terminal equipment determines to maintain the RRC inactive state according to the second message.

In this embodiment, when the first DU receives uplink data sent by the terminal device in the RRC inactive state, the first CU processes the uplink data and sends the processed data to the first CU, and then the first CU sends an RRC release message to the first DU to instruct the first DU to send an indication message for maintaining the RRC inactive state to the terminal device, so that the terminal device determines to maintain the RRC inactive state according to the message sent by the first DU. Through the processing flow, the processing of the uplink small data can be completed, meanwhile, the terminal equipment can be maintained in an RRC inactive state, and the transmission flow of the uplink data can be simplified and the data transmission efficiency can be improved because the terminal equipment does not need to be restored to an RRC connection state.

It should be noted that, the uplink data processing method provided in the embodiment of the present application may be applied to an application scenario where a terminal device performs small data transmission with a service network device corresponding to the terminal device, where the application scenario may be specifically divided into multiple situations where an anchor network device corresponding to the service network device and the terminal device is the same network device, and where the service network device and the anchor network device are different network devices. The following specifically explains the uplink data processing method in different cases.

In some embodiments, when the serving network device corresponding to the terminal device and the anchor network device are the same network device, the flow of the uplink data processing method is explained.

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:

s101, when the terminal equipment in the 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.

The uplink Data (UL Data) may specifically be uplink Small Data (UL Small Data) of a DU in the serving network device corresponding to the first DU, i.e., the terminal device. The RRC recovery request (rrrcresumerequest) 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 subsequent uplink data (Subsequent UL Data) to be sent, the data amount of the subsequent uplink data, whether there is promising downlink data, and so on.

S102, after receiving a first message sent by the terminal equipment, the first DU sends an RRC recovery request to the first CU according to the first message before processing uplink data to obtain first processed data.

The first CU is a CU in a service network device corresponding to the terminal device. The first DU transmits an RRC restoration request to the first CU through the F1 interface, and the RRC restoration request transmitted by the first DU to the first CU includes a Cause Value (Cause Value) as small data. Optionally, the RRC recovery request may further include assistance information in the first message.

In this embodiment, the service network device corresponding to the terminal device and the anchor network device are the same network device, so that the first CU retains the context corresponding to the terminal device, and thus, the first CU may determine the configuration information corresponding to the terminal device according to the identity corresponding to the terminal device in the RRC recovery request.

Optionally, the configuration information is determined by the first CU according to the UE context corresponding to the identity.

Specifically, the configuration information includes one or more of a DRB configuration list of the data radio bearer in the UE context, or other preset configuration different from any DRB configuration in the DRB configuration list. By adopting the existing DRB configuration or other preset configuration information different from the DRB configuration, the signaling configuration and the data transmission process between the communication interfaces can be simplified.

For example, according to a preset protocol layer related rule, a plurality of different Default configurations (Default configurations) can be preset, wherein the different Default configurations have different detailed configuration data, and the different Default configurations correspond to different application scenarios. After obtaining the identity of the terminal device, the first CU may determine a default configuration type corresponding to the terminal device according to a correspondence between the terminal device and an application scenario. When the first CU transmits the configuration information to the first DU, only the configuration type corresponding to the detailed configuration data may be transmitted, for example, default configuration 1, default configuration 2, and the like.

S103, the first CU sends a third message to the first DU to establish the UE context.

The third message includes configuration information, so that the first DU can perform data processing on uplink data of the terminal device according to the configuration information.

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 S104, after the first DU receives the third message, establishing a UE context according to the third message and the first CU, and processing uplink data according to configuration information in the third message to obtain first processing data.

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

S105, the first DU transmits the first processing data to the first CU.

S106, the first CU receives the first processing data sent by the first DU and performs data sending 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 configuration information, 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.

S107, the first CU determines the RRC state of the terminal device according to the assistance information.

Specifically, if the first CU determines that there is no subsequent uplink data currently according to the auxiliary information and the terminal device does not have the expected downlink data, the first CU determines that the RRC state of the terminal device is an RRC inactive state, and at this time, the first CU sends an RRC release (rrrelease) message to the first DU.

S108, after receiving the RRC release message sent by the first CU, the first DU sends a second message to the terminal equipment.

And S109, after receiving the second message sent by the first DU, the terminal equipment determines to maintain the RRC inactive state according to the second message.

S110, the first CU sends a UE context release message to the first DU.

And S111, after receiving the UE context release message sent by the first CU, the first DU releases the UE context corresponding to the terminal equipment.

The embodiment provides an uplink data processing method, when a service network device corresponding to a terminal device and an anchor network device are the same network device, the processing of uplink small data can be completed through the processing flow, and meanwhile, the terminal device can be maintained in an RRC inactive state, and the transmission flow of uplink data can be simplified and the data transmission efficiency can be improved because the terminal device does not need to be restored to an RRC connection state.

In some embodiments, when the service network device corresponding to the terminal device and the anchor network device are different network devices and do not perform anchor transfer, the flow of the uplink data processing method is explained.

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

s201, when the terminal equipment in the radio resource control RRC inactive state needs to send uplink data, a first message is sent to a corresponding first distribution unit DU, and the first message comprises the uplink data and an RRC recovery request.

The uplink data may specifically be uplink small data, which is a DU in the service network device corresponding to the first DU, i.e., the terminal device. 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 a first message sent by the terminal equipment, the first DU sends an RRC recovery request to the first CU before processing uplink data to obtain first processed data.

The first CU is a CU in a service network device corresponding to the terminal device. The first DU transmits an RRC restoration request to the first CU through the F1 interface, and the RRC restoration request transmitted 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.

In this embodiment, the service network device corresponding to the terminal device and the anchor network device are different network devices, so the first CU does not keep the context corresponding to the terminal device, and at this time, the first CU needs to obtain the context corresponding to the terminal device according to the RRC recovery request.

S203, the first CU determines a second CU according to the identity in the RRC recovery request.

The second CU is an anchor CU, that is, a CU in an anchor network device corresponding to the terminal device, where the second CU retains a context corresponding to the terminal device, and the first CU may acquire the context corresponding to the terminal device from the second CU.

S204, the first CU sends a fourth message to the second CU, wherein the fourth message comprises the identity of the terminal equipment.

The fourth message may specifically be a retrieve UE context request (Retrieve UE Context) message.

S205, the second CU determines configuration information corresponding to the terminal equipment according to the identity information.

The second CU retains the context corresponding to the terminal device, so that the second CU may determine, according to the identity of the terminal device, configuration information corresponding to the terminal device.

For example, according to a preset protocol layer related rule, a plurality of different Default configurations (Default configurations) can be preset, wherein the different Default configurations have different detailed configuration data, and the different Default configurations correspond to different application scenarios. After obtaining the identity of the terminal device, the second CU may determine, according to the correspondence between the terminal device and the application scenario, a default configuration type corresponding to the terminal device. When the second CU sends configuration information to the first CU, only the configuration type corresponding to the detailed configuration data may be sent, for example, default configuration 1, default configuration 2, and the like.

S206, when the second CU determines that anchor point transfer is not performed according to the fourth message, a fifth message is sent to the first CU, wherein the fifth message comprises data forwarding tunnel information and configuration information corresponding to the terminal equipment.

The fourth message further includes a cause value and auxiliary information, and the second CU determines whether to perform anchor point transfer according to the cause value and the auxiliary information. For example, when the upstream data is small data and the terminal device does not have the desired downstream data, the second CU determines not to perform anchor point transfer.

When it is determined that the anchor point transfer is not performed, the second CU sends a fifth message to the first CU, where the fifth message may be in the form of a retrieve UE context response/Failure (Retrieve UE Context Response/Failure) message, or may be a message sent by the second CU through an Xn interface between different network devices.

S207, the first CU sends a third message to the first DU to establish the UE context.

The third message includes configuration information determined and sent by the second CU, so that the first DU may perform data processing on uplink data of the terminal device according to the configuration information.

And S208, after the first DU receives the third message, establishing a UE context according to the third message and the first CU, and processing uplink data according to configuration information in the third message to obtain first processing data.

S209, the first DU transmits first processing data to the first CU.

S210, the first CU receives first processing data sent by the first DU and sends the first processing data to the second CU according to a data forwarding tunnel corresponding to the terminal equipment.

S211, the second CU receives the first processing data, performs data processing to obtain second processing data, and sends the second processing data to the core network equipment.

Specifically, after receiving the first processing data, the second 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.

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 configuration information, and sends the processed uplink data to the first CU, the first CU forwards the processed uplink data to the second CU for data processing, and the second CU sends the obtained processing result to the core network device.

S212, 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 currently according to the auxiliary information and the terminal device does not have the expected downlink data, the first CU determines that the RRC state of the terminal device is an RRC inactive state, and at this time, the first CU sends an RRC release message to the first DU.

S213, after receiving the RRC release message sent by the first CU, the first DU sends a second message to the terminal equipment.

And S214, after receiving the second message sent by the first DU, the terminal equipment determines to maintain the RRC inactive state according to the second message.

S215, the first CU sends a UE context release message to the first DU.

S216, after receiving the UE context release message sent by the first CU, the first DU releases the UE context corresponding to the terminal equipment.

The embodiment provides an uplink data processing method, when service network equipment corresponding to a terminal device and anchor point network equipment are different network equipment and anchor point transfer is not performed, the processing of uplink small data can be completed through the processing flow, meanwhile, the terminal device can be maintained to be in an RRC inactive state, and the transmission flow of uplink data can be simplified and the data transmission efficiency can be improved because the terminal device does not need to be restored to an RRC connection state.

In some embodiments, when the service network device corresponding to the terminal device and the anchor network device are different network devices and perform anchor transfer, the flow of the uplink data processing method is explained.

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

S302, after receiving a first message sent by the terminal equipment, the first DU sends an RRC recovery request to the first CU before processing uplink data to obtain first processed data.

S303, the first CU determines a second CU according to the identity in the RRC recovery request.

S304, the first CU sends a fourth message to the second CU, wherein the fourth message comprises the identity of the terminal equipment.

S305, the second CU determines configuration information corresponding to the terminal equipment according to the identity information.

And S306, when the second CU determines to perform anchor point transfer according to the fourth message, a seventh message is sent to the first CU, wherein the seventh message comprises configuration information and UE context information corresponding to the terminal equipment.

The fourth message further includes a cause value and auxiliary information, and the second CU determines whether to perform anchor point transfer according to the cause value and the auxiliary information. For example, when the amount of uplink data is large, or there is large subsequent uplink data, or the terminal device has desired downlink data, the second CU determines to perform anchor point transfer.

Upon determining that the anchor transfer is not to be performed, the second CU sends a seventh message to the first CU, which may be in the form of a retrieve UE context response (Retrieve UE Context Response) message, to provide the first CU with complete UE context information corresponding to the terminal device.

S307, the first CU sends a third message to the first DU to establish the UE context, and completes the processing and transmission of the uplink data in the first message.

And S308, the first CU carries out RRC recovery according to the UE context information corresponding to the terminal equipment so as to enable the terminal equipment to enter an RRC connection state.

S309, the terminal equipment enters an RRC connection state, and uplink and downlink data transmission of the terminal data is completed in the connection state.

It can be understood that, after the anchor point transfer, the network device where the first CU is located becomes an anchor point device corresponding to the terminal device, the first CU becomes an anchor point CU corresponding to the terminal device, and the first DU becomes an anchor point DU corresponding to the terminal device.

It should be noted that, the difference between this embodiment and the prior art is that: in this embodiment, although the terminal device is restored to the RRC connected state based on the cause value and the auxiliary information, in this embodiment, after the first uplink data (i.e., the uplink data in the first message) sent by the terminal device is processed and transmitted, the terminal device is restored to the RRC connected state, and in the prior art, the terminal device is restored to the RRC connected state first, and then the first uplink data is processed and transmitted.

The embodiment provides an uplink data processing method, when service network equipment corresponding to a terminal device and anchor point network equipment are different network equipment and perform anchor point transfer, the processing of uplink data can be completed through the processing flow, meanwhile, due to the fact that the anchor point transfer is required, subsequent uplink and downlink data transmission can be conveniently performed by recovering the terminal device to an RRC connection state, and normal communication between the terminal device and the network equipment is ensured.

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 used for storing a computer program; a transceiver 620 for transceiving data under the control of the 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; processing the uplink data according to the first message to obtain first processed data; transmitting the first processing data to the first concentrating unit CU; and sending a second message to the terminal equipment, wherein the second message is used for indicating the terminal equipment to maintain the RRC inactive state.

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), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or it may employ a multi-core architecture.

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

processing the uplink data according to the first message to obtain first processed data, including:

sending an RRC recovery request to the first CU, wherein the RRC recovery request comprises an identity of the terminal equipment;

receiving a third message sent by the first CU, and establishing a UE context according to the third message, wherein the third message comprises configuration information of the terminal equipment, and the configuration information is obtained by the first CU according to the identification of the terminal equipment;

and processing the uplink data according to the configuration information to obtain first processing data.

the configuration information includes one or more of a list of data radio bearer DRB configurations in the UE context, or other preset configuration that is different from any DRB configuration in the list of DRB configurations.

In some embodiments, a first central unit CU of a network device is provided, comprising a memory, a transceiver, a processor, wherein the memory is for storing a computer program; 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 processing uplink data included in a first message after the first message sent by terminal equipment in a radio resource control RRC inactive state is received by the first DU, and the first message is used for requesting RRC recovery; and sending an RRC release message to the first DU, wherein the RRC release message is used for indicating the first DU to send a second message to the terminal device, and the second message is used for indicating the terminal device to maintain the RRC inactive state.

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:

receiving an RRC recovery request sent by a first DU, wherein the RRC recovery request comprises an identity of terminal equipment;

and sending a third message to the first DU to establish the UE context, wherein the third message comprises configuration information and is used for indicating the first DU to process the uplink data according to the configuration information so as to obtain first processed data.

In some embodiments, determining the configuration information of the terminal device according to the identity of the terminal device includes:

sending a fourth message to the second CU, wherein the fourth message comprises the identity of the terminal equipment; the fourth message is used for indicating the second CU to determine configuration information according to the identity of the terminal equipment;

And receiving a fifth message sent by the second CU, wherein the fifth message comprises configuration information, and the fifth message is sent by the second CU when the second CU determines not to perform anchor point transfer according to the fourth message.

In some embodiments, further comprising: the first processing data is sent to the second CU.

transmitting the first processed data to the second CU, comprising:

and sending a sixth message to the second CU according to the data forwarding tunnel information, wherein the sixth message comprises the first processing data, and the sixth message is used for indicating the second CU to process the first processing data to obtain second processing data and sending the second processing data to the core network equipment.

In some embodiments, the operations further comprise: and receiving a seventh message sent by the second CU, wherein the seventh message comprises configuration information and UE context information corresponding to the terminal equipment, and the seventh message is sent by the second CU when the anchor point transfer is determined according to the fourth message.

In some embodiments, the operations further comprise: and carrying out RRC recovery according to the UE context information so as to enable the terminal equipment to enter an RRC connection state.

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; 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 is required to be sent, a first message is sent to a first Distribution Unit (DU), the first message comprises the uplink data, and the first message is used for requesting RRC recovery; receiving a second message sent by the first DU; according to the second message, it is determined to maintain the RRC inactive state.

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, processor 730 may be a CPU (Central processing Unit), ASIC (Application Specific Integrated Circuit ), FPGA (Field-Programmable Gate Array, field programmable Gate array) or CPLD (Complex Programmable Logic Device ), which may also employ a multi-core architecture.

The processor is configured to execute any of the methods provided in 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 in the embodiment of the present application, as shown in fig. 9, the uplink data processing apparatus 800 includes:

A receiving unit 810, 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;

a processing unit 820, configured to process the uplink data according to the first message, so as to obtain first processed data;

a transmitting unit 830 configured to transmit the first processing data to the first concentrating unit CU; and sending a second message to the terminal equipment, wherein the second message is used for indicating the terminal equipment to maintain the RRC inactive state.

In some embodiments, the sending unit 830 is further configured to: and sending an RRC recovery request to the first CU, wherein the RRC recovery request comprises the identity of the terminal equipment.

In some embodiments, the receiving unit 810 is further configured to: and receiving a third message sent by the first CU, and establishing a UE context according to the third message, wherein the third message comprises configuration information of the terminal equipment, and the configuration information is obtained by the first CU according to the identification of the terminal equipment.

In some embodiments, processing unit 820 is further configured to: and processing the uplink data according to the configuration information 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 in the embodiment of the present application, as shown in fig. 10, the uplink data processing apparatus 900 includes:

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

a sending unit 920, configured to send an RRC release message to the first DU, where the RRC release message is configured to instruct the first DU to send a second message to the terminal device, and the second message is configured to instruct the terminal device to maintain an RRC inactive state.

In some embodiments, the receiving unit 910 is further configured to: and receiving an RRC recovery request sent by the first DU, wherein the RRC recovery request comprises the identity of the terminal equipment.

In some embodiments, referring to fig. 10, the upstream data processing apparatus 900 further includes: a processing unit 930, configured to determine configuration information of the terminal device according to the identity of the terminal device;

in some embodiments, the sending unit 920 is further configured to: and sending a third message to the first DU to establish the UE context, wherein the third message comprises configuration information and is used for indicating the first DU to process the uplink data according to the configuration information so as to obtain first processed data.

In some embodiments, processing unit 930 is further to: and determining the RRC state of the terminal equipment according to the auxiliary information.

In some embodiments, processing unit 930 is further to: and determining a second CU according to the identity of the terminal equipment, wherein the second CU is an anchor CU.

In some embodiments, the sending unit 920 is further configured to: sending a fourth message to the second CU, wherein the fourth message comprises the identity of the terminal equipment; the fourth message is used for indicating the second CU to determine configuration information according to the identity of the terminal equipment;

in some embodiments, the receiving unit 910 is further configured to: and receiving a fifth message sent by the second CU, wherein the fifth message comprises configuration information, and the fifth message is sent by the second CU when the second CU determines not to perform anchor point transfer according to the fourth message.

In some embodiments, the sending unit 920 is further configured to: the first processing data is sent to the second CU.

In some embodiments, the sending unit 920 is further configured to: and sending a sixth message to the second CU according to the data forwarding tunnel information, wherein the sixth message comprises the first processing data, and the sixth message is used for indicating the second CU to process the first processing data to obtain second processing data and sending the second processing data to the core network equipment.

In some embodiments, the receiving unit 910 is further configured to: and receiving a seventh message sent by the second CU, wherein the seventh message comprises configuration information and UE context information corresponding to the terminal equipment, and the seventh message is sent by the second CU when the anchor point transfer is determined according to the fourth message.

In some embodiments, processing unit 930 is further to: and carrying out RRC recovery according to the UE context information so as to enable the terminal equipment to enter an RRC connection state.

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 in the embodiment of the present application, as shown in fig. 11, the uplink data processing apparatus 1000 includes:

a transmitting unit 1010, configured to, when in a radio resource control RRC inactive state, if uplink data needs to be transmitted, send a first message to the first distribution unit DU, where the first message includes the uplink data, and the first message is used to request RRC recovery;

a receiving unit 1020 for receiving a second message sent by the first DU;

and a processing unit 1030, configured to determine to maintain the RRC inactive state according to the second message.

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 each embodiment 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 essentially or in part or all or part of the technical solution contributing to the prior art or 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 perform 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, tape, magneto-optical disk (MO), etc.), optical memory (e.g., CD, DVD, BD, HVD, etc.), and semiconductor memory (e.g., ROM, EPROM, EEPROM, nonvolatile 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 in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

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

transmitting the first processing data to a first central unit CU; receiving an RRC release message sent by the first CU, wherein the RRC release message is sent after the first CU determines that the RRC state of the UE is in an RRC inactive state according to auxiliary information, and the auxiliary information is contained in an RRC recovery request sent by a first DU to the first CU;

Sending a second message to the terminal equipment, wherein the second message is used for indicating the terminal equipment to maintain the RRC inactive state;

and receiving a UE context release message sent by the first CU, and releasing the UE context corresponding to the UE.

2. The method of claim 1, wherein the first message further comprises an RRC restoration request for requesting RRC restoration;

sending the RRC recovery request to a first CU, wherein the RRC recovery request comprises the identity of the terminal equipment and the auxiliary information;

3. The method according to claim 2, wherein the configuration information is configuration information determined by the first CU according to the UE context corresponding to the identity;

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

determining that the RRC state of the terminal equipment UE is in an RRC inactive state according to auxiliary information, and sending an RRC release message to the first DU, wherein the RRC release message is used for indicating the first DU to send a second message to the terminal equipment, the second message is used for indicating the terminal equipment to maintain the RRC inactive state, and the auxiliary information is contained in an RRC recovery request sent by the first DU to the first CU;

and sending a UE context release message to the first DU.

5. The method according to claim 4, wherein the method further comprises:

Receiving an RRC recovery request sent by the first DU, wherein the RRC recovery request comprises the identity of the terminal equipment and the auxiliary information;

6. The method according to claim 5, wherein the configuration information is configuration information determined by the first CU according to the UE context corresponding to the identity;

7. The method according to any one of claims 4-6, wherein the determining the configuration information of the terminal device according to the identity of the terminal device comprises:

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

the first processing data is sent to the second CU.

9. The method of claim 8, wherein the fifth message further includes data forwarding tunnel information corresponding to the terminal device;

the sending the first processing data to the second CU includes:

10. The method of claim 7, wherein the method further comprises:

11. The method according to claim 10, wherein the method further comprises:

12. An uplink data processing method, which is applied to a terminal device, the method comprising:

receiving a second message sent by a first DU, wherein the second message is sent after the first DU receives an RRC release message sent by a first centralized unit CU, the RRC release message is sent after the first CU determines that the RRC state of the UE is in an RRC inactive state according to auxiliary information, and the auxiliary information is contained in an RRC recovery request sent by the first DU to the first CU; the first DU is configured to receive a UE context release message sent by the first CU after sending the second message, and release a UE context corresponding to the UE;

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

transmitting the first processing data to a first central unit CU;

receiving an RRC release message sent by the first CU, wherein the RRC release message is sent after the first CU determines that the RRC state of the UE is in an RRC inactive state according to auxiliary information, and the auxiliary information is contained in an RRC recovery request sent by a first DU to the first CU;

14. The distribution unit of claim 13, wherein the first message further comprises an RRC restoration request for requesting RRC restoration;

15. The distribution unit of claim 14, wherein the configuration information is configuration information determined by the first CU according to a UE context corresponding to the identity;

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

and sending a UE context release message to the first DU.

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

18. The central unit according to claim 17, wherein the configuration information is configuration information determined by the first CU according to the UE context corresponding to the identity;

19. The central unit according to any of claims 16-18, wherein said determining the configuration information of the terminal device based on the identity of the terminal device comprises:

20. The concentrating unit of claim 19 further comprising:

the first processing data is sent to the second CU.

21. The central unit of claim 20, wherein the fifth message further includes data forwarding tunnel information corresponding to the terminal device;

the sending the first processing data to the second CU includes:

22. The concentration unit of claim 19 wherein the operations further comprise:

23. The concentration unit of claim 22 wherein the operations further comprise:

24. A network device comprising a first distribution unit DU according to any one of claims 13-15 and a first concentration unit CU according to any one of claims 16-23.

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

when the Radio Resource Control (RRC) is in an inactive state, a first message is sent to a first Distribution Unit (DU), wherein the first message comprises uplink data and is used for requesting RRC recovery;

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

the receiving unit is further configured to receive an RRC release message sent by the first CU, where the RRC release message is sent by the first CU after determining, according to auxiliary information, that an RRC state of the UE is an RRC inactive state, and the auxiliary information is included in an RRC recovery request sent by the first DU to the first CU;

A transmitting unit configured to transmit the first processing data to a first concentration unit CU; sending a second message to the terminal equipment, wherein the second message is used for indicating the terminal equipment to maintain the RRC inactive state;

the receiving unit is further configured to receive a UE context release message sent by the first CU;

the processing unit is further configured to release a UE context corresponding to the UE.

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

a sending unit, configured to determine, according to the auxiliary information, that an RRC state of the terminal device UE is an RRC inactive state, and send the first processing data; transmitting an RRC release message to the first DU, wherein the RRC release message is used for indicating the first DU to transmit a second message to the terminal equipment, the second message is used for indicating the terminal equipment to maintain the RRC inactive state, and the auxiliary information is contained in an RRC recovery request transmitted by the first DU to the first CU;

And sending a UE context release message to the first DU.

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

a receiving unit, configured to receive a second message sent by a first DU, where the second message is sent by the first DU after receiving an RRC release message sent by a first centralization unit CU, where the RRC release message is sent by the first CU after determining, according to auxiliary information, that an RRC state of the UE is an RRC inactive state, and the auxiliary information is included in an RRC recovery request sent by the first DU to the first CU; the first DU is configured to receive a UE context release message sent by the first CU after sending the second message, and release a UE context corresponding to the UE;

29. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to implement the upstream data processing method of any one of claims 1 to 12.