CN110311934A

CN110311934A - A kind of signaling connection method for releasing and communication device

Info

Publication number: CN110311934A
Application number: CN201810240551.3A
Authority: CN
Inventors: 邓强
Original assignee: Telecommunications Science and Technology Research Institute Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-03-22
Filing date: 2018-03-22
Publication date: 2019-10-08
Anticipated expiration: 2038-03-22
Also published as: CN110311934B; WO2019179130A1

Abstract

The embodiment of the present invention provides a kind of signaling connection method for releasing and communication device, the opportunity of access and the signaling connection release according to indicated by the release auxiliary information that Application Function is sent of mobile management function to ps domain entity, signaling connection is timely discharged on different opportunitys, the connection of network release signaling is optimized, unnecessary resource consumption caused by signaling connection release not in time is avoided.

Description

A kind of signaling connection method for releasing and communication device

Technical field

The present invention relates to field of communication technology more particularly to a kind of signaling connection method for releasing and communication device.

Background technique

Internet of Things (Internet of Things, IoT) equipment often will rely on battery operation several years or even the more than ten years, because This economize on electricity is an IoT conceptual design important need in need of consideration.Release signaling after the data transfer ends as early as possible connects An important means of terminal (User Equipment, UE) electric quantity consumption is reduced, but network itself is not aware that currently Whether the data packet of transmission is the last one data packet, it is therefore desirable to terminal or application server (Application Server, AS) carry out the opportunity that assisted network determines release signaling connection.

And the prior art only account for terminal send upstream data (Uplink Data) when, how assisted network carries out letter When enabling Connection Release, and not sending downlink data (Downlink Data) in view of AS, how assisted network carries out signaling Connection Release.

Summary of the invention

The embodiment of the present invention provides a kind of signaling connection method for releasing and communication device, to solve AS line number under transmission According to when, how assisted network carry out signaling connection release the problem of.

In a first aspect, the embodiment of the present invention provides a kind of signaling connection method for releasing, access is real with mobile management function to ps domain The opportunity of body signaling connection release according to indicated by the release auxiliary information that Application Function is sent, when different Machine timely discharges signaling connection, optimizes to the connection of network release signaling, and it is too late to avoid signaling connection release When generated unnecessary resource consumption.

In one possible implementation, the access receives the application function reality with mobile management function to ps domain entity The release auxiliary information that body is sent by user plane functions entity or network opening functional entity.

In one possible implementation, the release auxiliary information indicates any one in following information:

Only one downlink data transmission and no transmitting uplink data between the Application Function and terminal；

A downlink data and a upstream data are transmitted between the Application Function and terminal；

Multiple downlink datas and a upstream data are transmitted between the Application Function and terminal.

In one possible implementation, the release auxiliary information is that the Application Function is set to internet Preset field or the Application Function in protocol header IP header are set to the preset field in tunnel head.

In one possible implementation, the access receives the application function reality with mobile management function to ps domain entity The release auxiliary information that body is sent by user plane functions entity, comprising:

The access receives the release that conversation management functional entity is sent by N11 message with mobile management function to ps domain entity Auxiliary information, wherein the release auxiliary information that the conversation management functional entity provides is real by the user plane functions Body from it is being identified in IP header or from the tunnel head identify and the conversation management functional is sent to by N4 message The release auxiliary information that entity or described conversation management functional entity provides be by the conversation management functional entity from It is identified in IP header.

The access and mobile management function to ps domain entity receive the user plane functions entity and pass through the access and movement Property management function entity and the user plane functions entity between interface message send release auxiliary information.

In one possible implementation, if the release auxiliary information indicates the Application Function and the end Only one downlink data transmission and no transmitting uplink data between end, then it is described to access and mobile management function to ps domain entity base Signaling connection release is carried out in the release auxiliary information, comprising:

The access will carry the non-access of the downlink data by N2 message with mobile management function to ps domain entity Layer message is sent to after wireless access network RAN entity, is initiated signaling connection and is discharged process.

In one possible implementation, if the release auxiliary information indicates the Application Function and the end It is transmitted between one downlink data of transmission and a upstream data or the Application Function and the terminal between end multiple Downlink data and a upstream data, then the access is carried out with mobile management function to ps domain entity based on the release auxiliary information Signaling connection release, comprising:

The access is passing through the conversation management functional entity to user face function with mobile management function to ps domain entity Can entity send after the upstream data or the access and mobile management function to ps domain entity it is real to the user plane functions After body sends the upstream data, initiates signaling connection and discharge process.

In one possible implementation, the access receives the application function reality with mobile management function to ps domain entity The release auxiliary information that body is sent by network opening functional entity, comprising:

It is described that the access and mobile management function to ps domain entity receive carrying for the network opening functional entity transmission Discharge the request message of auxiliary information, wherein the release auxiliary information that the network opening functional entity provides is answered by described The network opening functional entity is supplied in request message with functional entity；

The access determines the release auxiliary information with mobile management function to ps domain entity from the request message.

The access receives the carrying that conversation management functional entity is sent by N11 message with mobile management function to ps domain entity There is the request message of the release auxiliary information, wherein the release auxiliary information that the conversation management functional entity provides It is that conversation management functional entity is supplied to by the network opening functional entity, what the network opening functional entity provided releases Putting auxiliary information is that network opening functional entity is supplied in request message by the Application Function；

The access and mobile management function to ps domain entity are true from the request message that the conversation management functional entity is sent The fixed release auxiliary information.

In one possible implementation, if the release auxiliary information indicate the Application Function and terminal it Between only one downlink data transmission and no transmitting uplink data, then it is described access with mobile management function to ps domain entity be based on institute It states release auxiliary information and carries out signaling connection release, comprising:

After the access sends the downlink data to the terminal with mobile management function to ps domain entity, initiates signaling and connect Connect release process.

In one possible implementation, if the release auxiliary information indicate the Application Function and terminal it Between transmit and transmit multiple downlink datas between a downlink data and a upstream data or the Application Function and terminal With a upstream data, then the access is based on the release auxiliary information with mobile management function to ps domain entity and carries out signaling connection Release, comprising:

The access is passing through the conversation management functional entity to the network opening with mobile management function to ps domain entity Functional entity is sent after the upstream data or the access and mobile management function to ps domain entity are to the network opening function After energy entity sends the upstream data, initiates signaling connection and discharge process.

In one possible implementation, the signaling connection includes radio resource control RRC signaling connection, N2 signaling Connect at least one in connecting with Non-Access Stratum NAS signaling.

Second aspect, the embodiment of the present invention provide a kind of communication device, comprising:

Memory, for storing instruction；

Processor is released for reading the instruction in the memory, and what transceiver Application Function was sent After putting auxiliary information, following procedure is executed:

Signaling connection release is carried out based on the release auxiliary information, the release auxiliary information is used to indicate signaling connection The opportunity of release.

In one possible implementation, the transceiver is used for:

It receives the Application Function and passes through user plane functions entity or the open functional entity of network opening functional network The release auxiliary information of transmission.

Only one downlink data transmission and no upstream data between the Application Function and user equipment terminal Transmission；

In one possible implementation, the transceiver is used for:

Receive the release auxiliary information that conversation management functional entity is sent by N11 message, wherein the session management function Can the release auxiliary information that provides of entity be identified from IPheader by the user plane functions entity or from described It is identified in tunnel head and the conversation management functional entity the or described conversation management functional entity is sent to by N4 message The release auxiliary information provided is identified from IP header by the conversation management functional entity.

In one possible implementation, the transceiver is used for:

It receives the user plane functions entity and passes through the access and mobile management function to ps domain entity and user face function The release auxiliary information that interface message between energy entity is sent.

In one possible implementation, if the release auxiliary information indicates the Application Function and the end Only one downlink data transmission and no transmitting uplink data, the processor are used between end:

The non-access layer information for carrying the downlink data is sent to by N2 message in the transceiver and is wirelessly connect After networking RAN entity, initiates signaling connection and discharge process.

In one possible implementation, if the release auxiliary information indicates the Application Function and the end It is transmitted between one downlink data of transmission and a upstream data or the Application Function and the terminal between end multiple Downlink data and a upstream data, the processor are used for:

The uplink is sent to the user plane functions entity by the conversation management functional entity in the transceiver After data, or after the transceiver sends the upstream data to the user plane functions entity, initiates signaling and connect Connect release process.

In one possible implementation, the transceiver is used to receive taking for the network opening functional entity transmission Request message with the release auxiliary information, wherein the release auxiliary information that the network opening functional entity provides is The network opening functional entity is supplied in request message by the Application Function；

The processor is used to determine the release auxiliary information from the request message.

In one possible implementation, the transceiver passes through N11 message for receiving conversation management functional entity What is sent carries the request message of the release auxiliary information, wherein the described of conversation management functional entity offer is released Putting auxiliary information is that conversation management functional entity is supplied to by the network opening functional entity, and the network opening function is real The release auxiliary information that body provides is that network opening functional entity is supplied in request message by the Application Function；

The processor is used to determine the release auxiliary from the request message that the conversation management functional entity is sent Information.

In one possible implementation, if the release auxiliary information indicate the Application Function and terminal it Between only one downlink data transmission and no transmitting uplink data, the processor is used for:

After the transceiver sends the downlink data to the terminal, initiates signaling connection and discharge process.

In one possible implementation, if the release auxiliary information indicate the Application Function and terminal it Between transmit and transmit multiple downlink datas between a downlink data and a upstream data or the Application Function and terminal With a upstream data, the processor is used for:

It is sent on described by the conversation management functional entity to the network opening functional entity in the transceiver After row data, or after the transceiver sends the upstream data to the network opening functional entity, letter is initiated Enable Connection Release process.

The third aspect, the embodiment of the present invention provide another communication device, comprising:

Receiving module, for receiving the release auxiliary information of Application Function transmission, the release auxiliary information is used for The opportunity of indication signaling Connection Release；

Release module, for carrying out signaling connection release based on the release auxiliary information.

In one possible implementation, the receiving module passes through user face for receiving the Application Function The release auxiliary information that functional entity or the open functional entity of network opening functional network are sent.

In one possible implementation, the receiving module is used for:

In one possible implementation, if the release auxiliary information indicates the Application Function and the end Only one downlink data transmission and no transmitting uplink data between end, then the release module is used for:

The non-access layer information for carrying the downlink data is being sent to wireless access network RAN entity by N2 message Later, it initiates signaling connection and discharges process.

In one possible implementation, if the release auxiliary information indicates the Application Function and the end It is transmitted between one downlink data of transmission and a upstream data or the Application Function and the terminal between end multiple Downlink data and a upstream data, then the release module is used for:

After sending the upstream data to the user plane functions entity by the conversation management functional entity, or After person sends the upstream data to the user plane functions entity, initiates signaling connection and discharge process.

In one possible implementation, the receiving module is used for:

Receive the request message for carrying the release auxiliary information that the network opening functional entity is sent, wherein The release auxiliary information that the network opening functional entity provides is supplied in request message by the Application Function The network opening functional entity；

The release auxiliary information is determined from the request message.

In one possible implementation, the receiving module is used for:

Conversation management functional entity is received to disappear by the request for carrying the release auxiliary information that N11 message is sent Breath, wherein the release auxiliary information that the conversation management functional entity provides is mentioned by the network opening functional entity Conversation management functional entity is supplied, the release auxiliary information that the network opening functional entity provides is by the application function Entity is supplied to network opening functional entity in request message；

The release auxiliary information is determined from the request message that the conversation management functional entity is sent.

In one possible implementation, if the release auxiliary information indicate the Application Function and terminal it Between only one downlink data transmission and no transmitting uplink data, then the release module is used for:

After sending the downlink data to the terminal, initiates signaling connection and discharge process.

In one possible implementation, if the release auxiliary information indicate the Application Function and terminal it Between transmit and transmit multiple downlink datas between a downlink data and a upstream data or the Application Function and terminal With a upstream data, then the release module is used for:

After sending the upstream data to the network opening functional entity by the conversation management functional entity, Or it after to the network opening functional entity sending the upstream data, initiates signaling connection and discharges process.

Fourth aspect, the embodiment of the present invention provide a kind of computer readable storage medium, the computer-readable storage medium Matter is stored with computer instruction, when the computer instruction is run on computers, so that computer executes such as first aspect The method.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention Attached drawing is briefly described, it should be apparent that, attached drawing described below is only some embodiments of the present invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.

Fig. 1 is the flow diagram of signaling method for releasing in the prior art；

Fig. 2 is possible network architecture schematic diagram in a kind of system in future provided in the embodiment of the present invention；

Fig. 3 is the flow diagram of the signaling connection method for releasing provided in the embodiment of the present invention；

Fig. 4 is that data transfer path is Application Function-user plane functions entity-session management in the embodiment of the present invention The flow diagram of signaling connection method for releasing when functional entity-access and mobile management function to ps domain entity-terminal；

Fig. 5 is that data transfer path is Application Function-user plane functions entity-access and moves in the embodiment of the present invention The flow diagram of signaling connection method for releasing when mobility management functional entity-terminal；

Fig. 6 be in the embodiment of the present invention data transfer path be Application Function-network opening functional entity-access with The flow diagram of signaling connection method for releasing when mobile management function to ps domain entity-terminal；

Fig. 7 is that data transfer path is Application Function-network opening functional entity-session pipe in the embodiment of the present invention Manage the flow diagram of functional entity-access with signaling connection method for releasing when mobile management function to ps domain entity-terminal；

Fig. 8 is a kind of schematic diagram of communication device in the embodiment of the present invention；

Fig. 9 is the schematic diagram of another communication device in the embodiment of the present invention.

Specific embodiment

In order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer, implement below in conjunction with the present invention Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described.

Firstly, to terminal in the prior art send upstream data when, how assisted network carry out signaling connection release reality Existing scheme is described below.

To support non-frequent small data (infrequent small data) transmission, a kind of control is defined in a 4 g system Face (control plane) transmission plan processed, basic thought is terminal and mobility management entity (Mobility Management Entity, MME) between by Non-Access Stratum (Non-Access Stratum, NAS) signaling carry out data biography It is defeated, carried out data transmission between MME and gateway (Serving GateWay, SGW) by S11 user face, and it is unconventional The data transfer mode of Terminal-Base Station (eNodeB, eNB)-SGW.On the basis of control plane transmission plan, and define one kind Optimize the method for signaling connection release, terminal provides release auxiliary information (release assistance to MME Information) MME is helped to determine when that release signaling connects, concrete scheme may refer to Fig. 1.

The control plane transmission plan in existing 4G system is described in detail below with reference to Fig. 1, wherein the program Main flow can be described as follows:

S101: terminal is in idle (IDLE) state；

S102: terminal is established wireless heterogeneous networks (Radio Resource Control, RRC) connection and is sent to eNB NAS protocol Data Unit (Protocol Data Unit, PDU)；

It wherein, include emergency braking intervention (Emergency Brake Intervention, EBI) information in NAS PDU And upstream data；Whether terminal can also be used to indicate subsequent without upstream data in NAS PDU comprising release auxiliary information Or the transmission of downlink data, or only a downlink data (answer by the confirmation of such as upstream data after the upstream data It answers).

S103:eNB sends MME for NAS PDU by S1-AP message.

S104:MME carries out completeness check to NAS PDU and decrypts data therein.

S105:MME sends SGW for upstream data by S11-U, and SGW is sent the upstream data to point by S5-U Group data network gateway (PDN GateWay, PGW).

S106: the release assistance information provided based on terminal in S102, if without downlink data transmission, it is meant that Transmitting uplink data application layer data interaction all after completing has been completed, and MME releases immediately signaling connection, and (signaling connects It connects and is connected comprising S1 connection with RRC)；Otherwise, downlink data is sent to SGW by PGW, which is sent to by SGW again MME。

S107: if MME has received downlink data, which is included in NAS PDU and it is carried out Encryption and integrity protection.

S108:MME sends eNB for NAS PDU by S1-AP message；

If discharge auxiliary information instruction upstream data after only a downlink data, it is meant that release auxiliary information it Next downlink data afterwards is the last one data packet (packet) of application layer data interaction, and MME is in the case where having sent at this time Terminal contexts release instruction (terminal Context Release Command) message will be sent to eNB immediately after row data, It is used to indicate eNB and releases immediately RRC connection after downlink data is sent to terminal.

NAS PDU is sent to terminal by RRC information by S109:eNB.If eNB receives the finger of MME in S108 Show, eNB will initiate RRC connection and S1 Connection Release process.

By above-mentioned introduction it is found that when only accounting for terminal transmission upstream data in the prior art, how assisted network is carried out Signaling connection release, and when there is no sending downlink data in view of AS, how assisted network, which carries out signaling connection release, is asked Topic.In consideration of it, the embodiment of the present invention provides a kind of method of signaling connection release, to solve AS when sending downlink data, The problem of how assisted network carries out signaling connection release.

Fig. 2 is referred to, to be proposed in the embodiment of the present invention such as the 5th third-generation mobile communication (5-Generation, 5G) etc. not Carry out the possible network architecture of communication system, on the basis of this network architecture, proposes two kinds of possible control plane transmission plans, tool Body is described below:

Scheme one: terminal and access and mobile management function to ps domain (Access and Mobility Management Function, AMF) data biography is carried out by NAS mobile management (Mobility Management, MM) message between entity It is defeated, it accesses and passes through between mobile management function to ps domain entity and user plane functions (User Plane Function, UPF) entity Newly-increased interface in the user plane, as Nx interface etc. carries out data transmission (shown in dotted line 2 in Fig. 2).

Scheme two: lead between terminal and conversation management functional (Session Management Function, SMF) entity It crosses NAS session management (Session Management, SM) message to carry out data transmission, conversation management functional and user plane functions Between carried out data transmission (in Fig. 2 shown in dotted line 1) by N4 interface in the user plane.

Wherein, N1, N2 in Fig. 2 ..., N6 and Nx be communication interface.

On the basis of the network architecture shown in Fig. 2, the embodiment of the present invention proposes a kind of signaling connection method for releasing, below The general thought of this method is simply introduced.

The present invention considers application function (Application Function, AF) entity, such as AS, with user plane functions Carry out data transmission between entity, and, Application Function and network opening function (Network Exposure Function, NEF) two kinds of transmission modes carrying out data transmission between entity.

Further, it in the method carried out data transmission between Application Function and user plane functions entity, and examines " user plane functions entity-conversation management functional entity " is considered and " user plane functions entity-access and mobile management function to ps domain is real Two kinds of transmission modes of body "；In the method that Application Function and network opening functional entity carry out data transmission, it is contemplated that " network opening functional entity-access and mobile management function to ps domain entity " and " network opening functional entity-conversation management functional is real Two kinds of transmission modes of body ".

Basic thought of the invention be Application Function how to network provide release auxiliary information, and access with How mobile management function to ps domain entity carries out the process of signaling connection release according to release auxiliary information.

The preferred embodiment of the invention is described in detail with reference to the accompanying drawing.

Fig. 3 is referred to, the embodiment of the present invention provides a kind of signaling connection method for releasing, and the process of this method can describe such as Under:

S301: access and mobile management function to ps domain access receive Application Function with mobile management function to ps domain entity and send Release auxiliary information, release auxiliary information be used to indicate signaling connection release opportunity；

S302: access is based on release auxiliary information with mobile management function to ps domain entity and carries out signaling connection release.

It is signified to access the release auxiliary information that can be sent according to Application Function with mobile management function to ps domain entity On the opportunity for the signaling connection release shown, signaling connection is timely discharged on different opportunitys, network release signaling is connected It connects and optimizes, avoid unnecessary resource consumption caused by signaling connection release not in time.

In one possible implementation, it accesses and receives what Application Function was sent with mobile management function to ps domain entity Release auxiliary information can include but is not limited to following two situation:

Situation one, access can receive Application Function with mobile management function to ps domain entity and pass through user plane functions entity The release auxiliary information of transmission.

In this case, the path of data transmission may include but be not limited only to following two mode:

Mode 1: the path of data transmission can be real for Application Function-user plane functions entity-conversation management functional Body-access and mobile management function to ps domain entity-terminal.

At this moment, access can receive conversation management functional entity with mobile management function to ps domain entity and be sent by N11 message Release auxiliary information, wherein conversation management functional entity provide release auxiliary information be by user plane functions entity from because Special fidonetFido header (IP header) is middle identifying or identifies from tunnel head and is sent to session management function by N4 message Energy entity；Or the release auxiliary information that conversation management functional entity provides is by conversation management functional entity from IP header Middle identification.

In the mode 1 of situation one, Fig. 4 is referred to, as an example, signaling connection release side in the embodiment of the present invention The implementation process of method can be described as follows:

S401: Application Function setting release auxiliary information；

Wherein, if Application Function will indicate release auxiliary information to 5GS, if downlink data is the number of IP type According to then release auxiliary information can be arranged in Application Function in the preset field of IP header；If downlink data type For non-IP (non-IP) type, then Application Function can be arranged in the preset field of the tunnel head of tunnel information to user The release auxiliary information of face functional entity instruction.

And discharging auxiliary information can indicate but be not limited to any one in following several information:

Only one downlink data transmission and no transmitting uplink data between Application Function and terminal；

A downlink data and a upstream data are transmitted between Application Function and terminal；

Multiple downlink datas and a upstream data are transmitted between Application Function and terminal.

S402: Application Function sends downlink data to user plane functions entity.

S403: user plane functions Entity recognition goes out the release auxiliary information in IP header, or obtains from tunnel information Take release auxiliary information.

S404: user plane functions entity is sent to conversation management functional entity for auxiliary information is discharged by N4 message；

Wherein, when not establishing N4 user face between user plane functions entity and conversation management functional entity, session pipe Reason functional entity is sent to session management function for assistance messages are discharged by N4 data notification (Data Notification) message It can entity；And if having been set up N4 user face between user plane functions entity and conversation management functional entity, user face Functional entity can not parse release auxiliary information, but downlink data can be sent to conversation management functional entity.

S405: conversation management functional entity is sent to access and mobile management for auxiliary information is discharged by N11 message Functional entity；

Further, if conversation management functional entity has received release auxiliary information, session management function in S404 Energy entity is sent to access and mobile management function to ps domain entity, such as session management function for auxiliary information is discharged by N11 message Energy entity passes through " access and the N1N2 Messaging Service (Namf_ in mobile management function to ps domain communication service Communication_N1N2MessageTransfer) " message is sent to access and mobile management function for auxiliary information is discharged It can entity；And if conversation management functional entity has received downlink data in S404, conversation management functional entity can To identify that it is auxiliary that release auxiliary information in IP header or conversation management functional entity can obtain release from tunnel information Supplementary information, and the release auxiliary information is sent to by access and mobile management function to ps domain entity by N11 message.

S406: access is sent out with mobile management function to ps domain entity to wireless access network (Radio Access Network, RAN) Send paging (paging) message, RAN call terminal.

S407: terminal initiate service request procedure (Service Request procedure) establish RRC signaling connection, N2 signaling connection is connected with NAS signaling.

S408: access sends N11 message to conversation management functional entity with mobile management function to ps domain entity.

S409: N4 user face is established by N4 message between conversation management functional entity and user plane functions entity.

S410: user plane functions entity sends downlink data to conversation management functional entity.

S411: downlink data is included in non-access layer information by conversation management functional entity, and should by N11 message Non-access layer information is sent to access and mobile management function to ps domain entity.

If release auxiliary information indicates only one downlink data transmission between Application Function and terminal and does not have Transmitting uplink data, then access and mobile management function to ps domain send " terminal contexts release command to RAN immediately after S412 (N2UE context release command) " message (i.e. S419), namely access are being led to mobile management function to ps domain entity It crosses after the non-access layer information for carrying downlink data is sent to wireless access network RAN entity by N2 message, initiates signaling and connect Connect release process.

S412: non-access layer information is sent to RAN by N2 message with mobile management function to ps domain by access.

Non-access layer information is sent to terminal by RRC information by S413:RAN.

S414-S418: terminal can send upstream data by control plane.

Wherein, in S416, if transmitting a downlink between release assistance information instruction Application Function and terminal Data and a upstream data, or if multiple downlinks are transmitted between release auxiliary information instruction Application Function and terminal Data and a upstream data, then access and mobile management function to ps domain are immediately performed S419 after S417, i.e. access and movement Property management function entity by conversation management functional entity to user plane functions entity send upstream data after, or access After sending upstream data to user plane functions entity with mobile management function to ps domain entity, initiates signaling connection and discharge process；It is no Then, execution S418 is needed to execute S419 again after executing S417.

S419: access initiates access net release (Access Network release, AN with mobile management function to ps domain Release) process, i.e. initiation signaling connection discharge process, and release N2 is connected with RRC signaling.

Mode 2: the path of data transmission can be Application Function-user plane functions entity-access and mobility pipe Manage functional entity-terminal.

At this moment, access can receive user plane functions entity by accessing and mobility pipe with mobile management function to ps domain entity Manage the release auxiliary information that the interface message between functional entity and user plane functions entity is sent.

In the mode 2 of situation one, Fig. 5 is referred to, as an example, signaling connection release side in the embodiment of the present invention The implementation process of method can be described as follows:

S501: Application Function setting release auxiliary information；

Wherein, if Application Function will indicate release auxiliary information to 5GS, if downlink data is the number of IP type According to then release auxiliary information can be arranged in Application Function in the preset field of IP header；If downlink data type For non-IP type, then Application Function can be arranged to user plane functions reality in the preset field of the tunnel head of tunnel information The release auxiliary information of body instruction.

S502: Application Function sends downlink data to user plane functions entity.

S503: user plane functions Entity recognition goes out the release auxiliary information in IP header, or obtains from tunnel information Take release auxiliary information.

S504: user plane functions entity sends Nx message to access and mobile management function to ps domain entity by Nx interface, In, release auxiliary information can be carried in Nx message；

Wherein, if Nx user face is not established, user plane functions entity will discharge assistance messages by Nx message and send To access and mobile management function to ps domain；If Nx user face is it has been established that user plane functions can directly send downlink data To access and mobile management function to ps domain entity.

S505: access sends paging (paging) message, RAN call terminal to RAN with mobile management function to ps domain entity.

S506: terminal initiate service request procedure (Service Request procedure) establish RRC signaling connection, N2 signaling connection is connected with NAS signaling.

S507: Nx user is established by Nx message between access and mobile management function to ps domain entity and user plane functions entity Face.

S508: user plane functions entity sends downlink data to access and mobile management function to ps domain entity.

Wherein, if release auxiliary information instruction Application Function and terminal between only one downlink data transmission and There is no transmitting uplink data, then access sends " N2UE to RAN immediately after S509 with mobile management function to ps domain entity Context release command " message (i.e. S515), namely access are passing through N2 message with mobile management function to ps domain entity After the non-access layer information for carrying downlink data is sent to wireless access network RAN entity, initiates signaling connection and discharged Journey.

S509: downlink data is included in non-access layer information by access with mobile management function to ps domain entity, and passes through N2 The non-access layer information is sent to RAN by message.

Non-access layer information is sent to terminal by RRC information by S510:RAN.

S511-S514: terminal can send upstream data by control plane.

Wherein, in S512, if transmitting a downlink between release assistance information instruction Application Function and terminal Data and a upstream data, or if multiple downlinks are transmitted between release auxiliary information instruction Application Function and terminal Data and a upstream data, then access and mobile management function to ps domain are immediately performed S515 after S513, i.e. access and movement Property management function entity by conversation management functional entity to user plane functions entity send upstream data after, or access After sending upstream data to user plane functions entity with mobile management function to ps domain entity, initiates signaling connection and discharge process；It is no Then, execution S514 is needed to execute S515 again after executing S513.

S515: access initiates AN release process with mobile management function to ps domain, and release N2 is connected with RRC signaling.

Situation two, access can receive Application Function with mobile management function to ps domain entity and pass through network opening function reality The release auxiliary information that body is sent.

Access the release auxiliary information that can be sent according to network opening functional entity with mobile management function to ps domain entity On the opportunity of indicated signaling connection release, initiate release signaling connection procedure.

Mode 1: the path of data transmission can be Application Function-network opening functional entity-access and mobility Management function entity-terminal.

At this moment, access with mobile management function to ps domain entity can receive network opening functional entity transmission carry release The request message of auxiliary information, wherein the release auxiliary information that network opening functional entity provides is existed by Application Function Network opening functional entity is supplied in request message；In turn, access can disappear with mobile management function to ps domain entity from request Release auxiliary information is determined in breath.

In the mode 1 of situation two, Fig. 6 is referred to, as an example, signaling connection release side in the embodiment of the present invention The implementation process of method can be described as follows:

S601: Application Function sends request message to network opening functional entity, under may include in request message Row data and release auxiliary information；

Wherein, if Application Function will indicate release auxiliary information to 5GS, if downlink data is the number of IP type According to then release auxiliary information can be arranged in Application Function in the preset field of IP header；If downlink data type For non-IP type, then release auxiliary information can be arranged in Application Function in the preset field of the tunnel head of tunnel information.

S602: network opening functional entity including into the request message that sends with mobile management function to ps domain entity of access Downlink data and release auxiliary information；

And release auxiliary information can be determined with mobile management function to ps domain entity from request message by accessing；

Wherein, if if release auxiliary information indicates only one downlink data transmission between Application Function and terminal And there is no transmitting uplink data, then access and mobile management function to ps domain send " N2UE context to RAN immediately after S603 Release command " message (i.e. S606), namely access are sending downlink data to terminal with mobile management function to ps domain entity Later, it initiates signaling connection and discharges process；If discharging between auxiliary information instruction Application Function and terminal under transmission one Row data and one transmit multiple downlink datas and a upstream data between upstream data or Application Function and terminal, Then access is initiated signaling connection and is released with mobile management function to ps domain entity after sending upstream data to network opening functional entity Let off journey.

S603: the transmission of downlink data；

Wherein, the realization of the process may refer to S505-S506, S509-S510 of mode 2 in situation one, here no longer It repeats.

S604: access is with mobile management function to ps domain entity to network opening functional entity returning response message.

S605: network opening functional entity is to Application Function returning response message.

S606: access initiates AN release process with mobile management function to ps domain, and release N2 is connected with RRC signaling.

Mode 2: the path of data transmission can be application function-network opening function-conversation management functional-access and shifting Mobility management function-terminal.

At this moment, access can receive conversation management functional entity with mobile management function to ps domain entity and be sent by N11 message Carry release auxiliary information request message, wherein conversation management functional entity provide release auxiliary information be by net The open functional entity of network is supplied to conversation management functional entity, the release auxiliary information that network opening functional entity provides be by Application Function is supplied to network opening functional entity in request message；In turn, access and mobile management function to ps domain are real Body can determine release auxiliary information from the request message that conversation management functional entity is sent.

In the mode 2 of situation two, Fig. 7 is referred to, as an example, signaling connection release side in the embodiment of the present invention The implementation process of method can be described as follows:

S701: Application Function sends request message to network opening functional entity, under may include in request message Row data and release auxiliary information；

Only one downlink data transmission and no transmitting uplink data between Application Function and user equipment terminal；

S702: network opening functional entity includes downlink data in the request message sent to conversation management functional entity With release auxiliary information；

S703: conversation management functional entity including into the request message that sends with mobile management function to ps domain entity of access Downlink data and release auxiliary information；

Wherein, if if release auxiliary information indicates only one downlink data transmission between Application Function and terminal And there is no transmitting uplink data, then access sends " N2UE to RAN immediately after S704 with mobile management function to ps domain entity Context release command " message (i.e. S707), namely access are sent with mobile management function to ps domain entity to terminal After downlink data, initiates signaling connection and discharge process；If being passed between release auxiliary information instruction Application Function and terminal A defeated downlink data and one are transmitted between upstream data or Application Function and terminal on multiple downlink datas and one Row data, then access is being sent by conversation management functional entity to network opening functional entity with mobile management function to ps domain entity After upstream data or access with mobile management function to ps domain entity after sending upstream data to network opening functional entity, hair It plays signaling connection and discharges process.

S704: the transmission of downlink data；

S705: access is with mobile management function to ps domain entity to network opening functional entity returning response message.

S706: network opening functional entity is to Application Function returning response message.

S707: access initiates AN release process with mobile management function to ps domain entity, and release N2 is connected with RRC signaling.

It should be noted that above-mentioned S401-S419, S501-S515, S601-S606 and S701-S707 are intended merely to Convenient for description, so as to it will be appreciated by those skilled in the art that and be not used to the restriction of the sequencing to the method for the present invention process, In practical applications, can by above-mentioned steps any two or multiple steps be combined, to realize letter of the invention Connection Release method is enabled, the embodiment of the present invention is with no restriction.

Fig. 8 is referred to, based on the same inventive concept, the embodiment of the present invention provides a kind of communication device, which includes: to deposit Reservoir 801, processor 802 and transceiver 803.Wherein, memory 801 and transceiver 803 can pass through bus interface and processing Device 802 is connected (Fig. 8 is as example), or can also be connect by special connecting line with processor 802.

Wherein, memory 801, for storing instruction；

Processor 802 receives Application Function hair for reading the instruction in the memory, and in transceiver 803 After the release auxiliary information sent, following procedure is executed:

In one possible implementation, the transceiver 803 is used for:

In one possible implementation, if the release auxiliary information indicates the Application Function and the end Only one downlink data transmission and no transmitting uplink data between end, the processor 802 are used for:

The non-access layer information for carrying the downlink data is sent to wirelessly by N2 message in the transceiver 803 After access net RAN entity, initiates signaling connection and discharge process.

In one possible implementation, if the release auxiliary information indicates the Application Function and the end It is transmitted between one downlink data of transmission and a upstream data or the Application Function and the terminal between end multiple Downlink data and a upstream data, the processor 802 are used for:

It is sent on described by the conversation management functional entity to the user plane functions entity in the transceiver 803 After row data, or after the transceiver 803 sends the upstream data to the user plane functions entity, letter is initiated Enable Connection Release process.

In one possible implementation, the transceiver 803 is sent for receiving the network opening functional entity The request message for carrying the release auxiliary information, wherein the release that the network opening functional entity provides assists letter Breath is to be supplied to the network opening functional entity in request message by the Application Function；

The processor 802 is used to determine the release auxiliary information from the request message.

In one possible implementation, the transceiver 803 is disappeared for receiving conversation management functional entity by N11 What breath was sent carries the request message of the release auxiliary information, wherein the conversation management functional entity provides described Discharging auxiliary information is that conversation management functional entity, the network opening function are supplied to by the network opening functional entity The release auxiliary information that entity provides is that network opening functional entity is supplied in request message by the Application Function 's；

The processor 802 is used to determine that the release is auxiliary from the request message that the conversation management functional entity is sent Supplementary information.

In one possible implementation, if the release auxiliary information indicate the Application Function and terminal it Between only one downlink data transmission and no transmitting uplink data, the processor 802 is used for:

After the transceiver 803 sends the downlink data to the terminal, initiates signaling connection and discharge process.

In one possible implementation, if the release auxiliary information indicate the Application Function and terminal it Between transmit and transmit multiple downlink datas between a downlink data and a upstream data or the Application Function and terminal With a upstream data, the processor 802 is used for:

In the transceiver 803 by the conversation management functional entity to described in network opening functional entity transmission After upstream data, or after the transceiver 803 sends the upstream data to the network opening functional entity, hair It plays signaling connection and discharges process.

Wherein, in fig. 8, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 802 The various circuits for the memory that the one or more processors and memory 801 of representative represent link together.Bus architecture is also Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 803 can To be multiple element, that is, includes transmitter and transceiver, the list for communicating over a transmission medium with various other devices is provided Member.Processor 802, which is responsible for management bus architecture and common processing, memory 801, can store processor 802 and is executing operation When used data.

Fig. 9 is referred to, based on the same inventive concept, the embodiment of the present invention provides a kind of communication device, comprising:

Receiving module 901, for receiving the release auxiliary information of Application Function transmission, the release auxiliary information is used In the opportunity of indication signaling Connection Release；

Release module 902, for carrying out signaling connection release based on the release auxiliary information.

In one possible implementation, the receiving module 901 passes through use for receiving the Application Function The release auxiliary information that family face functional entity or the open functional entity of network opening functional network are sent.

In one possible implementation, the receiving module 901 is used for:

Receive the release auxiliary information that conversation management functional entity is sent by N11 message, wherein the session management function Can the release auxiliary information that provides of entity be identified from IP header by the user plane functions entity or from described It is identified in tunnel head and the conversation management functional entity the or described conversation management functional entity is sent to by N4 message The release auxiliary information provided is identified from IP header by the conversation management functional entity.

In one possible implementation, the receiving module 901 is used for:

In one possible implementation, if the release auxiliary information indicates the Application Function and the end Only one downlink data transmission and no transmitting uplink data between end, then the release module 902 is used for:

In one possible implementation, if the release auxiliary information indicates the Application Function and the end It is transmitted between one downlink data of transmission and a upstream data or the Application Function and the terminal between end multiple Downlink data and a upstream data, then the release module 902 is used for:

In one possible implementation, the receiving module 901 is for receiving the network opening functional entity hair That send carries the request message of the release auxiliary information, wherein the release auxiliary that the network opening functional entity provides Information is to be supplied to the network opening functional entity in request message by the Application Function；

The release auxiliary information is determined from the request message.

In one possible implementation, the receiving module 901 is used for:

In one possible implementation, if the release auxiliary information indicate the Application Function and terminal it Between only one downlink data transmission and no transmitting uplink data, then the release module 902 is used for:

In one possible implementation, if the release auxiliary information indicate the Application Function and terminal it Between transmit and transmit multiple downlink datas between a downlink data and a upstream data or the Application Function and terminal With a upstream data, then the release module 902 is used for:

Based on the same inventive concept, the embodiment of the present invention provides a kind of computer readable storage medium,

The computer-readable recording medium storage has computer instruction, when the computer instruction is run on computers When, so that computer executes method described in Fig. 3-Fig. 7.

In the specific implementation process, computer readable storage medium includes: general serial bus USB (Universal Serial Bus flash drive, USB), mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. are various can store program The storage medium of code.

In embodiments of the present invention, it should be understood that disclosed device and method, it can be real by another way It is existing.For example, apparatus embodiments described above are merely indicative, for example, the division of the unit or unit, only A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of equipment or unit It connects, can be electrical or other forms.

Each functional unit in embodiments of the present invention can integrate in one processing unit or each unit can also To be independent physical module.

If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the embodiment of the present invention All or part can be embodied in the form of software products, which is stored in a storage medium In, including some instructions use so that a computer equipment, such as can be personal computer, server or network are set Standby etc. or processor (processor) performs all or part of the steps of the method described in the various embodiments of the present invention.And it is above-mentioned Storage medium include: general serial bus USB (universal serial bus flash drive), mobile hard disk, The various media that can store program code such as ROM, RAM, magnetic or disk.

The above, above embodiments are only described in detail to the technical solution to the application, but the above implementation The method that the explanation of example is merely used to help understand the embodiment of the present invention, should not be construed as the limitation to the embodiment of the present invention.This Any changes or substitutions that can be easily thought of by those skilled in the art, should all cover the embodiment of the present invention protection scope it It is interior.

Claims

1. a kind of signaling connection method for releasing characterized by comprising

Access receives the release auxiliary information that Application Function is sent, the release auxiliary letter with mobile management function to ps domain entity Breath is used to indicate the opportunity of signaling connection release；

The access is based on the release auxiliary information with mobile management function to ps domain entity and carries out signaling connection release.

2. the method as described in claim 1, which is characterized in that the access is answered with described in the reception of mobile management function to ps domain entity The release auxiliary information sent with functional entity by user plane functions entity or network opening functional entity.

3. method according to claim 2, which is characterized in that the release auxiliary information indicates any one in following information Kind:

4. method as claimed in claim 2 or claim 3, which is characterized in that the release auxiliary information is the Application Function The preset field or the Application Function being set in internet protocol header IP header are set to pre- in tunnel head If field.

5. method according to claim 2, which is characterized in that the access is answered with described in the reception of mobile management function to ps domain entity The release auxiliary information sent with functional entity by user plane functions entity, comprising:

The access receives conversation management functional entity with mobile management function to ps domain entity and is assisted by the release that N11 message is sent Information, wherein the release auxiliary information that the conversation management functional entity provides be by the user plane functions entity from It is being identified in IP header or from the tunnel head identify and the conversation management functional entity is sent to by N4 message Or the release auxiliary information that the conversation management functional entity provides be by the conversation management functional entity from IP It is identified in header.

6. method according to claim 2, which is characterized in that the access is answered with described in the reception of mobile management function to ps domain entity The release auxiliary information sent with functional entity by user plane functions entity, comprising:

The access receives the user plane functions entity with mobile management function to ps domain entity and passes through the access and mobility pipe Manage the release auxiliary information that the interface message between functional entity and the user plane functions entity is sent.

7. such as method described in claim 5 or 6, which is characterized in that if the release auxiliary information indicates the application function Only one downlink data transmission and no transmitting uplink data between entity and the terminal, then it is described to access and mobility pipe It manages functional entity and is based on release auxiliary information progress signaling connection release, comprising:

The access is being disappeared the Non-Access Stratum for carrying the downlink data by N2 message with mobile management function to ps domain entity Breath is sent to after wireless access network RAN entity, is initiated signaling connection and is discharged process.

8. such as method described in claim 5 or 6, which is characterized in that if the release auxiliary information indicates the application function A downlink data and a upstream data or the Application Function and the terminal are transmitted between entity and the terminal Between transmit multiple downlink datas and a upstream data, then it is described access with mobile management function to ps domain entity be based on the release Auxiliary information carries out signaling connection release, comprising:

The access is with mobile management function to ps domain entity real to the user plane functions by the conversation management functional entity After the body transmission upstream data or the access is sent out with mobile management function to ps domain entity to the user plane functions entity After sending the upstream data, initiates signaling connection and discharge process.

9. method according to claim 2, which is characterized in that the access is answered with described in the reception of mobile management function to ps domain entity The release auxiliary information sent with functional entity by network opening functional entity, comprising:

What the access and mobile management function to ps domain entity received that the network opening functional entity sends carries the release The request message of auxiliary information, wherein the release auxiliary information that the network opening functional entity provides is by described using function Energy entity is supplied to the network opening functional entity in request message；

10. method according to claim 2, which is characterized in that described in the access and the reception of mobile management function to ps domain entity The release auxiliary information that Application Function is sent by network opening functional entity, comprising:

The access and mobile management function to ps domain entity have received carrying that conversation management functional entity is sent by N11 message State the request message of release auxiliary information, wherein the release auxiliary information that the conversation management functional entity provides be by The network opening functional entity is supplied to conversation management functional entity, and the release that the network opening functional entity provides is auxiliary Supplementary information is that network opening functional entity is supplied in request message by the Application Function；

The access determines institute with mobile management function to ps domain entity from the request message that the conversation management functional entity is sent State release auxiliary information.

11. the method as described in claim 9 or 10, which is characterized in that if release auxiliary information instruction is described to apply function It can only one downlink data transmission and no transmitting uplink data, the then access and mobile management between entity and terminal Functional entity is based on the release auxiliary information and carries out signaling connection release, comprising:

After the access sends the downlink data to the terminal with mobile management function to ps domain entity, initiates signaling connection and release Let off journey.

12. the method as described in claim 9 or 10, which is characterized in that if release auxiliary information instruction is described to apply function It can transmit between entity and terminal and be passed between a downlink data and a upstream data or the Application Function and terminal Defeated multiple downlink datas and a upstream data, then the access is based on release auxiliary letter with mobile management function to ps domain entity Breath carries out signaling connection release, comprising:

The access and mobile management function to ps domain entity by the conversation management functional entity to the network opening function Entity send after the upstream data or the access and mobile management function to ps domain entity it is real to the network opening function After body sends the upstream data, initiates signaling connection and discharge process.

13. the method as described in any one of claim 1-3,5-6 and 9-10, which is characterized in that the signaling connection includes Radio resource control RRC signaling connection, N2 signaling connection connected with Non-Access Stratum NAS signaling at least one of.

14. a kind of communication device characterized by comprising

Memory, for storing instruction；

Processor, for reading the instruction in the memory, and it is auxiliary in the release that transceiver Application Function is sent After supplementary information, following procedure is executed:

Signaling connection release is carried out based on the release auxiliary information, the release auxiliary information is used to indicate signaling connection release Opportunity.

15. communication device as claimed in claim 14, which is characterized in that the transceiver is used for:

The Application Function is received to send by user plane functions entity or the open functional entity of network opening functional network Release auxiliary information.

16. communication device as claimed in claim 15, which is characterized in that the release auxiliary information indicates in following information Any one:

Only one downlink data transmission and no transmitting uplink data between the Application Function and user equipment terminal；

17. the communication device as described in claim 15 or 16, which is characterized in that the release auxiliary information is described using function Preset field or the Application Function of the energy entity setting up in internet protocol header IP header are set to tunnel head In preset field.

18. communication device as claimed in claim 15, which is characterized in that the transceiver is used for:

Receive the release auxiliary information that conversation management functional entity is sent by N11 message, wherein the conversation management functional is real The release auxiliary information that body provides be identified from IPheader by the user plane functions entity or from the tunnel It is identified in head and the conversation management functional entity the or described conversation management functional entity is sent to by N4 message and provided The release auxiliary information be to be identified from IP header by the conversation management functional entity.

19. communication device as claimed in claim 15, which is characterized in that the transceiver is used for:

It is real by the access and mobile management function to ps domain entity and the user plane functions to receive the user plane functions entity The release auxiliary information that interface message between body is sent.

20. the communication device as described in claim 18 or 19, which is characterized in that if being answered described in release auxiliary information instruction With only one downlink data transmission between functional entity and the terminal and no transmitting uplink data, the processor is used In:

The non-access layer information for carrying the downlink data is sent to by wireless access network by N2 message in the transceiver After RAN entity, initiates signaling connection and discharge process.

21. the communication device as described in claim 18 or 19, which is characterized in that if being answered described in release auxiliary information instruction With one downlink data of transmission between functional entity and the terminal and a upstream data or the Application Function and institute It states and transmits multiple downlink datas and a upstream data between terminal, the processor is used for:

The upstream data is sent to the user plane functions entity by the conversation management functional entity in the transceiver Later, it or after the transceiver sends the upstream data to the user plane functions entity, initiates signaling connection and releases Let off journey.

22. communication device as claimed in claim 15, which is characterized in that

The transceiver is used to receive the request for carrying the release auxiliary information that the network opening functional entity is sent Message, wherein the release auxiliary information that the network opening functional entity provides is to be disappeared by the Application Function in request The network opening functional entity is supplied in breath；

23. communication device as claimed in claim 15, which is characterized in that

The transceiver carries the release auxiliary information by what N11 message was sent for receiving conversation management functional entity Request message, wherein the release auxiliary information that the conversation management functional entity provides is by the network opening function Energy entity is supplied to conversation management functional entity, and the release auxiliary information that the network opening functional entity provides is by described Application Function is supplied to network opening functional entity in request message；

The processor is used to determine the release auxiliary information from the request message that the conversation management functional entity is sent.

24. the communication device as described in claim 22 or 23, which is characterized in that if being answered described in release auxiliary information instruction With only one downlink data transmission between functional entity and terminal and no transmitting uplink data, the processor is used for:

25. the communication device as described in claim 22 or 23, which is characterized in that if being answered described in release auxiliary information instruction With transmitted between functional entity and terminal a downlink data and a upstream data or the Application Function and terminal it Between transmit multiple downlink datas and a upstream data, the processor is used for:

The upper line number is sent to the network opening functional entity by the conversation management functional entity in the transceiver According to later, or after the transceiver sends the upstream data to the network opening functional entity, initiates signaling and connect Connect release process.

26. the communication device as described in any one of claim 14-16,18-19 and 22-23, which is characterized in that the signaling Connection includes at least one during radio resource control RRC signaling connection, N2 signaling connection connects with Non-Access Stratum NAS signaling.

27. a kind of communication device characterized by comprising

Receiving module, for receiving the release auxiliary information of Application Function transmission, the release auxiliary information is used to indicate The opportunity of signaling connection release；

28. a kind of computer readable storage medium, it is characterised in that:

The computer-readable recording medium storage has computer instruction, when the computer instruction is run on computers, So that computer executes such as method of any of claims 1-13.