CN108605269A

CN108605269A - A kind of conversation managing method and device

Info

Publication number: CN108605269A
Application number: CN201780009886.8A
Authority: CN
Inventors: 窦凤辉; 金辉; 欧阳国威; 杨皓睿; 何岳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-01-09
Filing date: 2017-03-20
Publication date: 2018-09-28
Anticipated expiration: 2037-03-20
Also published as: CN113784418A; CN108605269B; CN113784417A; CN113784418B; WO2018126535A1

Abstract

A kind of conversation managing method and device, Idle state is converted to realize PDU sessions by activated state.This method includes：First equipment receives the request message of activation PDU sessions；First equipment sends the timer of the PDU sessions to the second equipment；First equipment receives the first message of the operation for the invalid PDU sessions that second equipment is initiated；The first message is that second equipment detects that in the PDU sessions, no data transmits, and continues to and sent out when the timer expiry.The operation of the invalid PDU sessions may include：The PDU sessions are converted into Idle state by activated state or delete the PDU sessions.

Description

A kind of conversation managing method and device

This application claims submitting on January 9th, 2017, Patent Office of the People's Republic of China, application No. is PCT/CN2017/070684, entitled " a kind of conversation managing method and device " ' Chinese patent application priority, entire contents are hereby incorporated by reference in the application.

Technical field

This application involves field of communication technology more particularly to a kind of conversation managing methods and device.

Background technique

In long term evolution (English: Long Term Evolution, referred to as: LTE) in system, it is conversated management based on UE, the lower all carryings of all Packet Data Units (Packet Data Unit, abbreviation PDU) connections while being activated or being deactivated in session.After executing S1 release process, the state between user equipment (English: User Equipment, abbreviation: UE) and core net is changed into Idle state (ECM_IDLE) by connected state (ECM_Connected).After executing service request (Service request) process, all carryings are activated, to be converted to connected state (being referred to as activated state) by Idle state between UE and core net.

In the 5th third-generation mobile communication technology (5G) system, conversated management based on PDU session stream (Session).When UE triggers multiple PDU session, each PDU session has independent state (activated state Session_ACTIVE or Idle state Session_IDLE) respectively.When carrying out the transmission of uplink and downlink data, data are carried in the Service request message that UE is sent transmits required PDU Session ID, to in activation, it is activated only for the corresponding PDU Session of PDU Session ID, so that the corresponding PDU Session of PDU Session ID is converted to activated state by Idle state.

But only description has PDU Session to be converted to activated state by Idle state in the prior art, and there is no the implementations that realization PDU Session is converted to Idle state by activated state.

Summary of the invention

The embodiment of the present application provides a kind of conversation managing method and device, is converted to Idle state by activated state to realize PDU session.

In a first aspect, the embodiment of the present application provides a kind of conversation managing method, comprising:

First equipment receives the request message of activation Packet Data Unit PDU session；First equipment sends the timer of the PDU session to the second equipment；First equipment receives the first message of the operation for the invalid PDU session that second equipment is initiated；The first message is that second equipment detects that in the PDU session, no data transmits, and while continueing to the timer expiry issues.The operation of the invalid PDU session may include: that the PDU session is converted to Idle state by activated state or deletes the PDU session.

Wherein, the mark of the PDU session can be carried in the first message.

Wherein, first equipment is the first equipment of the core network, and second equipment is the second equipment of the core network or is base station or is terminal.First equipment of the core network can be with the control plane network element of core-network side, such as SMF.Second equipment of the core network can be user's veil member of core-network side, such as UPF.

It should be noted that the activation of PDU session can be activation when establishing PDU session, perhaps PDU session is converted to activated state by Idle state or executes the activation of PDU session when cell switches.

Through the above scheme, in PDU session activation, a timer is sent from the first equipment to the second equipment, so that the second equipment issues the message of the operation for the invalid PDU session when detecting that no data transmits in the PDU session, and continueing to the timer expiry.Based on this, Idle state is deleted or is converted into the PDU session that no data transmits to provide a kind of trigger, the PDU session so as to avoid no data transmission occupies the wasting of resources caused by resource.

In a kind of possible design, before first equipment sends the timer to second equipment, first equipment obtains the corresponding timer of the PDU session, can specifically obtain one of in the following way:

The first implementation:

The slice information that first equipment is sliced based on network belonging to the PDU session determines the timer of the PDU session.

Second of implementation:

First equipment receives the timer of the PDU session sent by third equipment of the core network.

The third implementation:

First equipment is based on data network title (English: Data Network name, abbreviation: DNN) or access point name (English: Access Point Name, abbreviation: APN) determines the timer of the PDU session.

In a kind of possible design, the method also includes:

First equipment sends instruction information to second equipment, and the instruction information is to be used to indicate the information of the operation of the invalid PDU session.

Wherein, the instruction information and timer can be sent jointly to the second equipment by the first equipment, can be not especially limited certainly with separately send, the embodiment of the present application to this.

In a kind of possible design, the instruction information can be to be sent by third equipment of the core network.Specifically, receiving the instruction information sent by third equipment of the core network after first equipment receives the request message, the instruction information is to be used to indicate the information of the operation of the invalid PDU session.

In a kind of possible design, first equipment can not send the instruction information to the second equipment, after receiving the first message to first equipment, determine that the operation of the invalid PDU session is that the PDU session is converted to Idle state by activated state or is to delete the PDU session based on the instruction information.

The mark of the PDU session can be carried in a kind of possible design, in the first message.

Based on this, the first message can also carry cause value, and the cause value is used to indicate the timer expiry of the PDU session.

In above-mentioned design, cause value is carried in first message, to allow the first equipment in first message, is able to know that it is that the second equipment will trigger first message due to what, the operation next executed is determined based on this.

In a kind of possible design, the operation of the invalid PDU session is that the PDU session is converted to Idle state by activated state, the method also includes:

After first equipment receives the first message, the second equipment of the core network of Xiang Suoshu sends the message for being used to indicate and deleting the corresponding information relevant to base station of the PDN session.To execute the operation for deleting the corresponding information relevant to base station of the PDN session after the second equipment of the core network receives the message for being used to indicate the corresponding information relevant to base station of the deletion PDN session.

After first equipment receives the first message, Idle state is set by the state of the PDU session.

By above-mentioned design, first equipment saves the state of the PDU session, thus PDU in subsequent execution and terminal The state synchronized of session.

In a kind of possible design, the operation of the invalid PDU session is to delete the PDU session, the method also includes:

After first equipment receives the first message, the transmission of the second equipment of the core network of Xiang Suoshu is used to indicate the message for deleting information relevant to the PDN session.To after the second equipment of the core network receives the message for being used to indicate and deleting information relevant to the PDN session, delete all information relevant to PDU session of itself preservation.

After first equipment receives the first message, the message for being used to indicate terminal deletion information relevant to the PDN session is sent to terminal.To terminal receive it is described be used to indicate the message of terminal deletion information relevant to the PDN session after, delete all information relevant to PDU session itself saved.

In a kind of possible design, after first equipment receives the first message, the message for being used to indicate base station and discharging the context of the PDU session is sent to base station.To delete or hang up the corresponding radio resource of the PDU session after the message that base station receives that the instruction base station discharges the context of the PDU session.

In a kind of possible design, the method can also include:

After first equipment receives the first message, is sent to the 4th equipment of the core network and be used to indicate the message that the 4th equipment of the core network sets the state of the PDU session to Idle state.To which the 4th equipment of the core network is used to indicate after the state of the PDU session sets the message of Idle state by the 4th equipment of the core network receiving, the state for executing the PDU session for saving itself is set as Idle state.In the operation relevant to the PDU session of the 4th equipment of the core network subsequent execution, executed based on the state of PDU session.

In a kind of possible design, the first equipment of the core network receives the second message of the 4th equipment of the core network transmission, and the second message carries the mark of the PDU session of user face to be updated context；

First equipment updates the user face context of the corresponding PDU session of mark of the PDU session after receiving the second message.When by above-mentioned design, before carrying out cell switching, after the first equipment of the core network receives the second message of the 4th equipment of the core network transmission, to update the user face context for identifying the corresponding PDU session of the PDU session.

Second aspect, the embodiment of the present application also provides a kind of conversation managing methods, comprising:

In Packet Data Unit PDU session activation, base station receives the timer for the PDU session that the first equipment of the core network is sent；The base station detects that in the PDU session, no data transmits, and when continueing to the timer expiry, the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.

By above-mentioned design, by the first equipment of the core network in PDU session activation, timer is handed down to base station, to which base station is when being monitored PDU session, no data in the PDU session is monitored to transmit, and triggering sends first message to the first equipment of the core network, so that the first equipment of the core network after receiving the first message, executes the operation of the invalid PDU session when continueing to the timer expiry.Based on this, invalid to provide a kind of PDU session that no data is transmitted in triggering, the PDU session so as to avoid no data transmission occupies the wasting of resources caused by resource.

Wherein, the operation of the invalid PDU session includes: that the state of the PDU session is converted to Idle state by activated state or deletes the PDU session.

In a kind of possible design, the method can also include:

In PDU session activation, the base station receives the instruction information that first equipment of the core network is sent, and the instruction information is to be used to indicate the information of the operation of the invalid PDU session.

By above-mentioned design, when providing one kind and indicate that base station detects that no data is transmitted in the PDU session by the first equipment of the core network, and continueing to the timer expiry, to trigger the operation executed needed for the first equipment of the core network.Instruction information can not also be sent to base station by certain first equipment of the core network, thus after the first equipment of the core network receives the first message that base station is sent, the operation of triggering needed for itself determining.

In a kind of possible design, the first message can carry the mark of the PDU session.

In addition, can also carry cause value in the first message, the cause value is used to indicate the timer expiry of the PDU session.

In a kind of possible design, base station is after sending first message to the first equipment of the core network, first equipment of the core network can trigger base station and discharge the context of the PDU session, specifically, the base station receives the message for being used to indicate the base station and discharging the context of the PDU that first equipment of the core network is sent；The base station is deleted or hung up by the corresponding radio resource of the PDU session.

In a kind of possible design, after what the base station received that first equipment of the core network sends is used to indicate the message that the base station discharges the context of the PDU, the state of the PDU session of preservation is set Idle state by the base station.

By above-mentioned design, base station saves the state of PDU session, so that subsequent can be based on the state of PDU session, to execute the operation for the PDU session.

In a kind of possible design, the method can also include:

The base station is transmitted monitoring in the PDU session no data, and after continueing to the timer expiry, deletes the mapping relations between the corresponding service quality QoS stream of the PDU session and radio resource carrying DRB.

Optionally, base station can delete the mapping relations between the corresponding service quality QoS stream of the PDU session and radio resource carrying DRB when receiving the first message of the first equipment of the core network transmission.It can also be transmitted monitoring the no data in the PDU session, and after continueing to the timer expiry, before being sent to first message to the first equipment of the core network, the mapping relations between the corresponding service quality QoS stream of the PDU session and radio resource carrying DRB are deleted.

In a kind of possible design, the method can also include:

The base station is transmitted monitoring in the PDU session no data, and after continueing to the timer expiry, Xiang Suoshu terminal sends the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session.

Optionally, base station Xiang Suoshu terminal can send the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session after the corresponding radio resource of the PDU session is deleted perhaps hang-up.Base station can also send the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session to terminal before the corresponding radio resource of the PDU session is deleted perhaps hang-up.Base station can also send the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session to terminal after the first message for receiving the transmission of the first equipment of the core network.For the sequencing that base station executes, the application is not especially limited this.

In a kind of possible design, carry in the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session: radio resource that is to be deleted or hanging up carries the mark of DRB.

The third aspect, the embodiment of the present application provide a kind of conversation managing method, comprising:

Terminal receives the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session that base station is sent；The terminal deletion hangs up the corresponding radio resource of the PDU session, and sets Idle state for the state of the PDU session.

By above-mentioned design, terminal executes after the message for receiving base station transmission and deletes or hang up the corresponding radio resource of the PDU session, and sets Idle state for the state of the PDU session.To guarantee the DPU of terminal and base station The state synchronized of session.Wherein, what base station was sent is used to indicate the terminal deletion or hangs up the message of the corresponding radio resource of PDU session, it is to monitor when no data in the PDU session transmits and continues to the corresponding timer expiry of PDU session, triggering, which executes, to be triggered in the process of the operation of the invalid PDU session.In addition triggering can be the base station, can also be the second equipment of the core network, can also be the terminal.In addition, the PDU session that no data in a period of time is transmitted is invalid, the PDU session so as to avoid no data transmission occupies the wasting of resources caused by resource.

In a kind of possible design, before setting Idle state for the state of the PDU session, the method also includes:

Judge that the corresponding whole radio resources of the PDU session are deleted or hang up.Pass through a kind of above-mentioned mode, it is after whole radio resources of the PDU session are deleted or hang up, the state of the PDU session is set Idle state by triggering, when so as to the subsequent execution operation for PDU session, is executed based on the state for being saved in the PDU.

In a kind of possible design, before the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session that the terminal receives that base station is sent, the method also includes:

In the PDU session activation, terminal receives the timer for the PDU session that the first equipment of the core network is sent；

The terminal monitoring in the PDU session no data transmit, and when continueing to the timer expiry, the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.

Above provide the methods that a kind of triggering of terminal executes the invalid PDU session, to which terminal is monitoring the no data transmission in the PDU session, and when continueing to the timer expiry, the operation for executing the invalid PDU session is triggered, the PDU session for avoiding lasting no data transmission occupies the wasting of resources caused by resource.

In a kind of possible design, the operation of the invalid PDU session includes: that the state of the PDU session is converted to Idle state by activated state or deletes the PDU session.

In a kind of possible design, the method can also include:

In the PDU session activation, the terminal receives the first instruction information that first equipment of the core network is sent, and the first instruction information is to be used to indicate the information of the operation of the invalid PDU session.

Fourth aspect, the embodiment of the present application provide a kind of conversation managing method, comprising:

Second equipment of the core network receives the message of the first equipment of the core network transmission, the message carries the mark of PDU session to be deleted, is used to indicate second equipment of the core network and deletes the corresponding information relevant to base station of the corresponding PDU session of the mark or delete information relevant with the PDU session；

Second equipment of the core network deletes the corresponding information relevant to base station of the PDU session or deletes information relevant with the PDU session.

By above-mentioned design, the second equipment of the core network executes the corresponding information relevant to base station of PDU session or deletes information relevant with the PDU session after the message for receiving base station transmission.Wherein, the message that the first equipment of the core network is sent is being monitored when no data in the PDU session transmits and continues to the corresponding timer expiry of PDU session, and triggering, which executes, to be triggered in the process of the operation of the invalid PDU session.In addition monitoring triggering can be base station, can also be second equipment of the core network, can also be the terminal.In addition, the PDU session that no data in a period of time is transmitted is invalid, the PDU session so as to avoid no data transmission occupies the wasting of resources caused by resource.

In a kind of possible design, the method can also include:

In the PDU session activation, the second equipment of the core network receives the timer for the PDU session that the first equipment of the core network is sent；

Second equipment of the core network monitors the no data in the PDU session and transmits, and continues to the timer expiry, and the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.

The method for executing the invalid PDU session is triggered by the second equipment of the core network above design provides a kind of, thus the Two equipments of the core network are when monitoring the no data transmission in the PDU session, and continueing to the timer expiry, and to trigger the operation for executing the invalid PDU session, the PDU session for avoiding lasting no data transmission occupies the wasting of resources caused by resource.

In a kind of possible design, the method can also include:

In PDU session activation, second equipment of the core network receives the instruction information that first equipment of the core network is sent, and the instruction information is the information of the operation of the instruction invalid PDU session.

5th aspect, the embodiment of the present application also provides the conversation managing methods in a kind of cell switch process, comprising:

In cell switch process, the 4th equipment of the core network receives the mark for the PDU session that base station is sent；

4th equipment of the core network determines the PDU session for needing to update user face context based on the mark of the PDU session；

4th equipment of the core network is sent to the first equipment of the core network for notifying first equipment of the core network to update the message of the user face context of the PDU session.

By above-mentioned design, in cell switch process, the PDU session for needing to update user's context is determined, so that the first equipment of the core network be notified to update the user face context of these PDU sessions.In addition, it is necessary to the PDU session for updating user's context is the PDU session for activated state, to ensure that the PDU session updates for activated state, avoid in existing cell switching, for terminal all PDU sessions update caused by the wasting of resources.

In a kind of possible design, the method also includes:

4th equipment of the core network receives the transmission of the first equipment of the core network, and is used to indicate the 4th equipment of the core network and sets Idle state for the state of the PDU session or delete the message of the PDU session；

The state of the PDU session of preservation is set Idle state by 4th equipment of the core network, or deletes the status information of the PDU session.

By above-mentioned design, in the process of the invalid PDU session, Idle state is set by the state of the PDU session of preservation, or delete the status information of the PDU session, when the subsequent execution for the PDU session operates, can be executed based on the state of the PDU session.

6th aspect, the embodiment of the present application provide a kind of conversation managing method, the synchronization for PDU session.The described method includes:

Terminal, which determines, has upstream data to reach or receive paging request；The terminal sends request message to the network equipment, the mark of PDU session is carried in the request message, and/or carry the first state information of the corresponding QoS flow of PDU session, the first state information indicates that the state of the QoS flow on the terminal is activated state or inactive state, the state for the network equipment QoS flow synchronous with the terminal.

By above-mentioned design, terminal sends the state of the corresponding QoS flow of PDU session to be synchronized to the network equipment, the state for the network equipment QoS flow synchronous with the terminal when determining has upstream data to reach or receive paging request.

In a kind of possible design, the radio resource control RRC state of the terminal is the inactive connection status of RRC, and the network equipment is base station, and the request message is used to indicate the RRC connection for restoring the terminal.The method can also include:

The terminal receives the second status information of the corresponding QoS flow of the PDU session that the base station is sent, and second status information indicates that state of the QoS flow on the base station is activated state or inactive state；

State of the terminal based on second status information QoS flow corresponding with PDU session described in the base station synchronization.

By above-mentioned design, the status information of the PDU session after activation is sent to terminal after the QoS flow for executing activation PDU session by base station, so that the state of the QoS flow of PDU session described in terminal and base station synchronization.

In a kind of possible design, after the terminal sends request message to base station, the terminal receives the mapping relations of the PDU session corresponding QoS flow and DRB that the base station is sent；

The terminal saves the mapping relations.

In a kind of possible design, the connection management CM state of the terminal is idle state, and the network equipment is the 4th equipment of the core network, and the request message, which is used to indicate, is converted to CM connection status from CM idle state for the terminal.The method can also include:

The terminal receives the third state information of the corresponding QoS flow of the PDU session sent by first equipment of the core network, and the third state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state；

State of the terminal based on the corresponding QoS flow of the third flow state information PDU session synchronous with first equipment of the core network.

By above-mentioned design, when the network equipment is four equipment of the core network, terminal receives the corresponding QoS flow of PDU session that the first equipment of the core network is sent and corresponds to third state information, so that terminal carrys out the state of synchronous QoS flow with the first equipment of the core network, avoids state is asynchronous from leading to data transmission fault.

7th aspect, the embodiment of the present application provide a kind of conversation managing method, comprising:

Base station receives the RRC connection that the terminal is sent and restores message, and the RRC connection restores to carry parameter in message；

The base station determines PDU session to be activated according to the parameter；

The process of PDU session described in the base station trigger activation.

By above-mentioned design, base station is after receiving RRC connection and restoring message, it determines the PDU session for needing to activate, so that the PDU session only for needs carries out activation operation, avoids in existing and be performed both by the activation operation bring wasting of resources for all PDU sessions of terminal.

In a kind of possible design, the parameter is the mark of the PDU session to be activated or the mark of the corresponding radio resource carrying DRB of the PDU session to be activated.

It include the corresponding relationship between PDU session and radio resource carrying in base station, so that base station determines PDU session to be activated according to corresponding relationship.

Wherein, the state of the PDU session to be activated is Idle state.

In a kind of possible design, the RRC connection restores the first state information that the corresponding service quality QoS stream of the PDU session is also carried in message；The status information is used for the state of the base station QoS flow synchronous with the terminal.

Wherein, activation PDU session namely activates the corresponding QoS flow of PDU session.

In a kind of possible design, the base station triggers execute the process for activating the PDU session, comprising:

The base station is sent to the first equipment of the core network for triggering the message that the PDU session is converted to activated state.

By above-mentioned design, provide it is a kind of the PDU session be converted into the message of activated state trigger the process for executing the activation PDU session for trigger by sending, it is simple and effective.

In a kind of possible design, the method can also include:

The base station configures the mapping relations between the corresponding QoS flow of the PDU session and DRB.

By above-mentioned design, it after the base station triggers execute the process for activating the PDU session, that is, needs to activate PDU meeting Words, so that base station is that the session configures the mapping relations between the corresponding QoS flow of the PDU session and DRB.

In a kind of possible design, the method can also include:

The mapping relations are sent to the terminal by the base station.So that terminal receives the mapping relations, mapping relations are based on, the corresponding operation of the PDU session is executed.

In a kind of possible design, the method can also include:

Second status information of the corresponding QoS flow of the PDU session is sent to terminal by the base station, to indicate the state of QoS described in the terminal and base station synchronization.

The above-mentioned mode for devising a kind of terminal and base station synchronization QoS state.

In a kind of possible design, the method can also include:

Base station, which is determined, executes cell switching for terminal；

The base station sends switching request message to the 4th equipment of the core network, carries that the terminal is carried in the mark or the switching request for the PDU session that the corresponding state of the terminal is activated state is corresponding and preserve the mark of the PDU session of PDU session context in the base station in the switching request message.

By above-mentioned design, when executing cell switching, base station sends switching request to the 4th equipment of the core network, and carry the mark for the PDU session that state is activated state in the request, so that the corresponding SMF of the 4th equipment of the core network instruction PDU session updates the corresponding user face context of PDU session of activated state.

Eighth aspect, the embodiment of the present application provide a kind of conversation managing method, comprising:

First equipment of the core network receives the service request information that terminal is sent, and the mark of PDU session to be activated is carried in the service request information；

First equipment of the core network executes the process for activating the PDU session based on the service request information.

By above-mentioned design, the mark for needing the PDU session activated is sent to the first equipment of the core network by terminal, and the PDU session that the first equipment of the core network is activated only for needs does not need all PDU sessions of activated terminals, to reduce the occupancy of resource.

In a kind of possible design, the first state information of the corresponding service quality QoS stream of the PDU session is carried in the service request information；The first state information indicates that the state of the corresponding QoS flow of the PDU session on the terminal is activated state or inactive state, the state for first equipment of the core network QoS flow synchronous with the terminal.

In above-mentioned design, the state of the corresponding QoS flow of PDU session is issued terminal by the first equipment of the core network, so that terminal carrys out the state of synchronous QoS flow with the first equipment of the core network, data transmission fault caused by avoiding state asynchronous.

In a kind of possible design, the method can also include:

The third state information for the corresponding QoS flow of the PDU session that first equipment of the core network is sent to the terminal, to indicate the state of the corresponding QoS flow of the terminal PDU session synchronous with first equipment of the core network；The third state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state.

In above-mentioned design, the state of the corresponding QoS flow of PDU session is issued the first equipment of the core network by terminal, so that the first equipment of the core network carrys out the state of synchronous QoS flow with terminal, data transmission fault caused by avoiding state asynchronous.

Based on inventive concept same as embodiment of the method, the embodiment of the present application also provides a kind of session management device, the wherein beneficial effect cross-reference of method and apparatus part, details are not described herein by the application.

9th aspect, the embodiment of the present application provide a kind of session management device, and described device is applied to the first equipment, comprising:

Receiving module, for receiving the request message of activation Packet Data Unit PDU session；

Sending module, for sending the timer of the PDU session to the second equipment；

The receiving module is also used to receive the first message of the operation for the invalid PDU session that second equipment is initiated；The first message is that second equipment detects that in the PDU session, no data transmits, and while continueing to the timer expiry issues.

In a kind of possible design, first equipment is the first equipment of the core network, and second equipment is the second equipment of the core network or is base station or is terminal.

In a kind of possible design, the operation of the invalid PDU session includes: that the PDU session is converted to Idle state by activated state or deletes the PDU session.

In a kind of possible design, further includes:

First determining module, for determining the timer of the PDU session based on the slice information of the slice of network belonging to the PDU session before the sending module sends the timer to second equipment.

In a kind of possible design, the receiving module is also used to receive the timer of the PDU session sent by third equipment of the core network.

In a kind of possible design, the sending module is also used to send instruction information to second equipment, and the instruction information is to be used to indicate the information of the operation of the invalid PDU session.

In a kind of possible design, the receiving module is also used to after receiving the request message, receives the instruction information sent by third equipment of the core network, and the instruction information is to be used to indicate the information of the operation of the invalid PDU session.

In a kind of possible design, second determining module, for determining that the operation of the invalid PDU session is that the PDU session is converted to Idle state by activated state or is to delete the PDU session based on the instruction information after the receiving module receives the first message.

In a kind of possible design, the mark of the PDU session is carried in the first message.

In a kind of possible design, the first message also carries cause value, and the cause value is used to indicate the timer expiry of the PDU session.

In a kind of possible design, the operation of the invalid PDU session is that the PDU session is converted to Idle state by activated state, the receiving module, it is also used to after receiving the first message, the second equipment of the core network of Xiang Suoshu sends the message for being used to indicate and deleting the corresponding information relevant to base station of the PDN session.

In a kind of possible design, the operation of the invalid PDU session is that the PDU session is converted to Idle state, described device by activated state further include:

Processing module, for setting Idle state for the state of the PDU session after receiving the first message.

In a kind of possible design, the operation of the invalid PDU session is to delete the PDU session, the sending module, it is also used to after the receiving module receives the first message, the transmission of the second equipment of the core network of Xiang Suoshu is used to indicate the message for deleting information relevant to the PDN session.

In a kind of possible design, the operation of the invalid PDU session is to delete the PDU session, the sending module is also used to after receiving the first message, and the message for being used to indicate terminal deletion information relevant to the PDN session is sent to terminal.

In a kind of possible design, the sending module is also used to after the receiving module receives the first message, and the message for being used to indicate base station and discharging the context of the PDU session is sent to base station.

In a kind of possible design, the sending module is also used to after the receiving module receives the first message, is sent to the 4th equipment of the core network and is used to indicate the message that the 4th equipment of the core network sets the state of the PDU session to Idle state.

In a kind of possible design, the receiving module is also used to receive the second message of the 4th equipment of the core network transmission, and the second message carries the mark of the PDU session of user face to be updated context；

Described device further include:

Update module, the user face context of the corresponding PDU session of mark for updating the PDU session.

Tenth aspect, the embodiment of the present application provide a kind of session management device, and described device is applied to base station, comprising:

Receiving module, for receiving the timer for the PDU session that the first equipment of the core network is sent in Packet Data Unit PDU session activation；

Processing module, for detecting, no data is transmitted in the PDU session, and continues to the timer expiry；

The sending module, the first message of the operation for sending the invalid PDU session to first equipment of the core network.

In a kind of possible design, the receiving module is also used to receive the instruction information that first equipment of the core network is sent in PDU session activation, and the instruction information is to be used to indicate the information of the operation of the invalid PDU session.

In a kind of possible design, the first message carries the mark of the PDU session.

In a kind of possible design, cause value is also carried in the first message, the cause value is used to indicate the timer expiry of the PDU session.

In a kind of possible design, the receiving module is also used to receive the message for being used to indicate the base station and discharging the context of the PDU that first equipment of the core network is sent；

The processing module is also used to that the corresponding radio resource of the PDU session is deleted or hung up.

In a kind of possible design, the processing module is also used to:

Idle state is set by the state of the PDU session of preservation.

In a kind of possible design, the processing module, it is also used to transmit monitoring in the PDU session no data, and after continueing to the timer expiry, deletes the mapping relations between the corresponding service quality QoS stream of the PDU session and radio resource carrying DRB.

In a kind of possible design, the sending module, it is also used to monitor in the PDU session no data in the processing module and transmit, and after continueing to the timer expiry, Xiang Suoshu terminal sends the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session.

Tenth on the one hand, and the embodiment of the present application provides a kind of session management device, and described device is applied to terminal, comprising:

Receiving module, for receiving the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session of base station transmission；

Processing module is set as Idle state for deleting or hanging up the corresponding radio resource of the PDU session, and by the state of the PDU session.

In a kind of possible design, the processing module, it is also used to after the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session that the receiving module receives that the base station is sent, when judging that the corresponding whole radio resources of the PDU session are deleted or hang up, Idle state is set by the state of the PDU session.

In a kind of possible design, the receiving module is also used to delete in the terminal that is used to indicate for receiving base station transmission Before the message for removing or hanging up the corresponding radio resource of PDU session, in the PDU session activation, the timer for the PDU session that the first equipment of the core network is sent is received；

Described device further include:

Sending module is also used to monitor in the PDU session no data in the processing module and transmit, and when continueing to the timer expiry, the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.

In a kind of possible design, the receiving module is also used in the PDU session activation, receives the first instruction information that first equipment of the core network is sent, and the first instruction information is to be used to indicate the information of the operation of the invalid PDU session.

12nd aspect, the embodiment of the present application provide a kind of session management device, and described device is applied to the second equipment of the core network, comprising:

Receiving module, for receiving the message of the first equipment of the core network transmission, the message carries the mark of PDU session to be deleted, is used to indicate second equipment of the core network and deletes the corresponding information relevant to base station of the corresponding PDU session of the mark or delete information relevant with the PDU session；

Processing module, for deleting the corresponding information relevant to base station of the PDU session or deleting information relevant with the PDU session.

In a kind of possible design, the receiving module is also used in the PDU session activation, receives the timer for the PDU session that the first equipment of the core network is sent；

Described device further include:

Sending module transmits for monitoring the no data in the PDU session in the processing module, and continues to the timer expiry, and the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.

In a kind of possible design, the receiving module is also used to receive the instruction information that first equipment of the core network is sent in PDU session activation, and the instruction information is the information of the operation of the instruction invalid PDU session.

13rd aspect, the embodiment of the present application provide a kind of session management device, and described device is applied to the 4th equipment of the core network, comprising:

Receiving module, for receiving the mark for the PDU session that base station is sent in cell switch process；

Processing module determines the PDU session for needing to update user face context for the mark based on the PDU session；

Sending module, for sending to the first equipment of the core network for notifying first equipment of the core network to update the message of the user face context of the PDU session.

In a kind of possible design, the receiving module is also used to:

The transmission of the first equipment of the core network is received, and is used to indicate the 4th equipment of the core network and sets Idle state for the state of the PDU session or delete the message of the PDU session；

The processing module is also used to set the state of the PDU session saved to Idle state, or deletes the status information of the PDU session.

Fourteenth aspect, the embodiment of the present application provide a kind of conversation managing method, and described device is applied to terminal, comprising:

Processing module has upstream data to reach or receive paging request for determining；

Sending module is used to send request message to the network equipment, the mark of PDU session is carried in the request message, And/or the first state information of the corresponding QoS flow of PDU session is carried, the first state information indicates that the state of the QoS flow on the terminal is activated state or inactive state, the state for the network equipment QoS flow synchronous with the terminal.

In a kind of possible design, the radio resource control RRC state of the terminal is the inactive connection status of RRC, and the network equipment is base station, and the request message is used to indicate the RRC connection for restoring the terminal.

In a kind of possible design, the receiving module, it is also used to receive the second status information of the corresponding QoS flow of the PDU session that the base station is sent, second status information indicates that state of the QoS flow on the base station is activated state or inactive state；

The processing module is also used to the state based on second status information QoS flow corresponding with PDU session described in the base station synchronization.

In a kind of possible design, the receiving module is also used to receive the mapping relations of the PDU session corresponding QoS flow and DRB that the base station is sent；

The processing module is also used to save the mapping relations.

In a kind of possible design, the connection management CM state of the terminal is idle state, and the network equipment is the 4th equipment of the core network, and the request message, which is used to indicate, is converted to CM connection status from CM idle state for the terminal.

In a kind of possible design, the receiving module, it is also used to receive the third state information of the corresponding QoS flow of the PDU session sent by first equipment of the core network, the third state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state；

The processing module is also used to the state based on the corresponding QoS flow of the third flow state information PDU session synchronous with first equipment of the core network.

15th aspect, the embodiment of the present application provide a kind of session management device, and described device is applied to base station, comprising:

Receiving module restores message for receiving the RRC connection that the terminal is sent, and the RRC connection restores to carry parameter in message；

Processing module, for determining PDU session to be activated according to the parameter；And trigger the process for activating the PDU session.

In a kind of possible design, the state of the PDU session to be activated is Idle state.

In a kind of possible design, described device further include:

Sending module, for sending to the first equipment of the core network for triggering the message that the PDU session is converted to activated state.

In a kind of possible design, the processing module is also used to configure the mapping relations between the corresponding QoS flow of the PDU session and DRB.

In a kind of possible design, further includes:

Sending module is also used to the mapping relations being sent to the terminal.

In a kind of possible design, described device further include:

Sending module, for the second status information of the corresponding QoS flow of the PDU session to be sent to terminal, with instruction The state of QoS described in the terminal and base station synchronization.

In a kind of possible design, the processing module is also used to determine that executing cell for terminal switches；

Sending module, for sending switching request message to the 4th equipment of the core network, carry that the terminal is carried in the mark or the switching request for the PDU session that the corresponding state of the terminal is activated state is corresponding and preserve the mark of the PDU session of PDU session context in the base station in the switching request message.

16th aspect, the embodiment of the present application provide a kind of session management device, and described device is applied to the first equipment of the core network, comprising:

Receiving module carries the mark of PDU session to be activated for receiving the service request information of terminal transmission in the service request information；

Processing module, for executing the process for activating the PDU session based on the service request information.

In a kind of possible design, the first state information of the corresponding service quality QoS stream of the PDU session is carried in the service request information；The first state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state, the state for first equipment of the core network QoS flow synchronous with the terminal.

In a kind of possible design, described device further include:

Sending module, the third state information of the corresponding QoS flow of the PDU session for being sent to the terminal, to indicate the state of the corresponding QoS flow of the terminal PDU session synchronous with first equipment of the core network；The third state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state.

17th aspect, the embodiment of the present application also provides a kind of first equipments of the core network, first equipment of the core network includes communication interface, processor and memory, the communication interface is used for sending and receiving data, the memory is for storing software program, the processor is used to read the software program stored and realize the method that any one design of first aspect or above-mentioned first aspect provides in the memory, either designs provided method for realizing any one of eighth aspect or eighth aspect.

18th aspect, the embodiment of the present application also provides a kind of second equipments of the core network, second equipment of the core network includes communication interface, processor and memory, the communication interface is used for sending and receiving data, the memory is used to read the software program stored and realize the method that any one design of fourth aspect or above-mentioned fourth aspect provides in the memory for storing software program, the processor.

19th aspect, the embodiment of the present application provides a kind of 4th equipment of the core network, 4th equipment of the core network includes communication interface, processor and memory, the communication interface is used for sending and receiving data, the memory is used to read the software program stored in the memory and realizes the method that any one design of the 5th aspect or above-mentioned 5th aspect provides for storing software program, the processor.

20th aspect, the embodiment of the present application provides a kind of terminal, the terminal includes transceiver, processor and memory, the transceiver is used for sending and receiving data, the memory is used to read the software program stored and realize any one method for designing offer of the third aspect or the above-mentioned third aspect, or the method for any one design offer for realizing the 6th aspect or above-mentioned 6th aspect in the memory for storing software program, the processor.

20th on the one hand, the embodiment of the present application provides a kind of base station, the base station includes transceiver, processor and memory, the transceiver is used for sending and receiving data, the memory is used to read the software program stored and realize any one method for designing offer of second aspect or above-mentioned second aspect, or the method for any one design offer for realizing the 7th aspect or above-mentioned 7th aspect in the memory for storing software program, the processor.

22nd aspect, a kind of computer storage medium is also provided in the embodiment of the present application, software program is stored in the storage medium, which can realize the method that first aspect is provided to eighth aspect either side or above-mentioned first aspect to any one design of eighth aspect when being read and executed by one or more processors.

23rd aspect, the embodiment of the present application also provides a kind of conversation managing methods, comprising:

In PDU session establishment or the activation of terminal, the source base station that the terminal is currently accessed receives the timer for the PDU session that the first equipment of the core network is sent；It is inactive state by the state recording of the PDU session if the source base station detects that no data is transmitting continuous to the timer expiry in the PDU session；

The source base station is when determining that being directed to terminal execution is switched to target BS from the source base station, determine the first kind PDU session for including in the PDU session of the activation of the terminal, the first kind PDU session is to be recorded as the PDU session of inactive state, switching flow is executed for the second class PDU session, the second class PDU session is the PDU session in the PDU session of the terminal in addition to the first kind session.

By above-mentioned design, the timer of the PDU session of source base station monitor terminal, switching flow is not executed for the PDU of timer expiry, executes switching only for the PDU session that timer has not timed out, the PDU session so as to avoid no data transmission occupies the wasting of resources caused by resource.

In a kind of possible design, the source base station executes switching flow for the second class PDU session, comprising:

The source base station sends switching request to the target BS, and the mark of the second class PDU session is only carried in the switching request；Alternatively,

The mark of the first kind PDU session and the mark of the second class PDU session are carried in the switching request；Alternatively,

The mark and the first instruction of the PDU session of the activation of the terminal, the first kind PDU session in the PDU session of activation of first instruction for marking the terminal are carried in the switching request.

Above provide a kind of switching modes based on XN.

In a kind of possible design, the method also includes:

During executing switching for the second class PDU session, the source base station sends the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session to the terminal.

In a kind of possible design, carried in the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session: the mark of the first kind PDU session；Alternatively,

Carry in the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session: the mark of the PDU session of the activation of the terminal and the first instruction, described first indicates the first kind PDU session in the PDU session of the activation for identifying the terminal.

In a kind of possible design, the operation of the invalid first kind PDU session includes: that the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.

The source base station sends switching request to the 4th equipment of the core network, and the mark of the second class PDU session is only carried in the switching request；Alternatively,

Twenty-fourth aspect, the embodiment of the present application provide a kind of conversation managing method, comprising:

Terminal target BS to be cut receives the switching request that the source base station that the terminal is currently accessed is sent, and the mark of the second class PDU session is only carried in the switching request；Alternatively, carrying the mark of the first kind PDU session and the mark of the second class PDU session in the switching request；Alternatively, the mark and the first instruction of the PDU session of the activation of the terminal are carried in the switching request, the first kind PDU session in the mark of PDU session of first instruction for marking the activation of the terminal；

Wherein, the PDU session of each activation of the terminal is configured a corresponding timer in foundation or activation respectively；The first kind PDU session is to be recorded as the PDU session of inactive state；It is described to be recorded as inactive PDU session and refer to meet the transmitting continuous PDU session to corresponding timer expiry of no data；The second class PDU session is the PDU session in the PDU session of the activation of the terminal in addition to the PDU session labeled as active state；

The target BS sends the message for being used to indicate the operation that the 4th equipment of the core network executes the invalid first kind PDU session to the 4th equipment of the core network.

In a kind of possible design, carried in the message for being used to indicate the operation that the 4th equipment of the core network executes the invalid second class PDU session: the mark of the first kind PDU session.

25th aspect, the embodiment of the present application provide a kind of conversation managing method, comprising:

During terminal is switched to target BS from source base station, the 4th equipment of the core network receives the mark for the second class PDU session that source base station or target BS are sent；

Wherein, the PDU session of each activation of the terminal is configured a corresponding timer in foundation or activation respectively；The second class PDU session is the PDU session in the PDU session of the activation of the terminal in addition to the PDU session for being recorded as inactive state, and the PDU session for being recorded as inactive state, which refers to, meets the transmitting continuous PDU session to corresponding timer expiry of no data；

4th equipment of the core network is sent to the first equipment of the core network for notifying first equipment of the core network to update the message of the context of the second class PDU session.

By above-mentioned design, the 4th core net is executed only for the second class PDU session updates context, and the PDU session so as to avoid no data transmission occupies the wasting of resources caused by resource.

In a kind of possible design, the 4th equipment of the core network receives the mark for the second class PDU session that target BS is sent, comprising:

4th equipment of the core network receives the path integration message that the target BS is sent, and the path integration message carries the mark of the second class PDU session.

In a kind of possible design, the 4th equipment of the core network receives the mark for the second class PDU session that source base station is sent, comprising:

4th equipment of the core network receives the switching request that the source base station is sent, and the mark of the second class PDU session is carried in the switching request.

In a kind of possible design, the method also includes:

4th equipment of the core network determines that first kind PDU session, the first kind PDU session are in the PDU session of the activation for the terminal that the 4th equipment of the core network saves except the mark pair based on the mark of the second class PDU session PDU session other than the second class PDU session answered；

4th equipment of the core network sends the message for being used to indicate the operation for executing the invalid first kind PDU session to first equipment of the core network.

In a kind of possible design, the operation of the invalid first kind PDU session, including the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.

In a kind of possible design, after the 4th equipment of the core network determines first kind PDU session based on the mark of the first kind PDU session, the method also includes:

The state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session by the 4th equipment of the core network.

In a kind of possible design, the method also includes:

4th equipment of the core network receives the mark for the third class PDU session that the source base station or the target BS are sent, and the third class PDU session is the PDU session for being recorded as inactive state；

4th equipment of the core network sends the message for being used to indicate the operation for executing the invalid third class PDU session to first equipment of the core network.

In a kind of possible design, the operation of the invalid third class PDU session, comprising:

The state of the third class PDU session is converted into Idle state by activated state or deletes the third class PDU session.

In a kind of possible design, after the 4th equipment of the core network receives the mark for the third class PDU session that the source base station or the target BS are sent, the method also includes:

The state of the third class PDU session is converted to Idle state by activated state or deletes the third class PDU session by the 4th equipment of the core network.

In a kind of possible design, after the 4th equipment of the core network receives the mark for the third class PDU session that the source base station or target BS are sent, the method also includes:

The mark of the third class PDU session is sent to the terminal by the 4th equipment of the core network, is used to indicate the terminal for the state of the third class PDU session and is set as Idle state.

26th aspect, the embodiment of the present application provide a kind of conversation managing method, comprising:

During terminal is switched to target BS from the source base station being currently accessed, what the terminal received that the source base station or the 4th equipment of the core network send is used to indicate the message for executing the operation of invalid first kind Packet Data Unit PDU session；

Wherein, the PDU session of each activation of the terminal is configured a corresponding timer in foundation or activation respectively；The first kind PDU session is to be recorded as the PDU session of inactive state；It is described to be recorded as inactive PDU session and refer to meet the transmitting continuous PDU session to corresponding timer expiry of no data；

The terminal executes the operation of the invalid first kind PDU session based on the message.

In a kind of possible design, carried in the message for being used to indicate the operation that the terminal executes invalid first kind Packet Data Unit PDU session: the mark of first kind PDU session.

In a kind of possible design, carry in the message for being used to indicate the operation for executing invalid first kind Packet Data Unit PDU session: the mark of the PDU session of the activation of the terminal and the first instruction, described first indicates the first kind PDU session in the PDU session for marking the activation of the terminal；

The terminal executes the operation of the invalid first kind PDU session based on the message, comprising:

The terminal determines the first kind PDU session in the PDU session of the activation of the terminal according to first instruction, and executes the operation of the invalid first kind PDU session.

In a kind of possible design, the operation of the invalid first kind PDU session, comprising:

The state of the first kind PDU session is converted into Idle state by activated state or deletes the first kind PDU session.

27th aspect, the embodiment of the present application provide a kind of session management device, and described device is applied to source base station, comprising:

Receiving module, for receiving the timer for the PDU session that the first equipment of the core network is sent in PDU session establishment or the activation of terminal；It is inactive state by the state recording of the PDU session if the source base station detects that no data is transmitting continuous to the timer expiry in the PDU session；

Processing module, for when determining that being directed to terminal execution is switched to target BS from the source base station, determine the first kind PDU session for including in the PDU session of the activation of the terminal, the first kind PDU session is to be recorded as the PDU session of inactive state, switching flow is executed for the second class PDU session, the second class PDU session is the PDU session in the PDU session of the terminal in addition to the first kind session.

In a kind of possible design, further includes:

Sending module only carries the mark of the second class PDU session for sending switching request to the target BS for the second class PDU session in the processing module in the switching request；Alternatively,

In a kind of possible design, further includes:

Sending module, for during executing switching for the second class PDU session, Xiang Suoshu terminal to send the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session.

In a kind of possible design, further includes:

The sending module, for sending switching request to the 4th equipment of the core network, the mark of the second class PDU session only being carried in the switching request when the processing module executes switching flow for the second class PDU session；Alternatively,

Twenty-eighth aspect, the embodiment of the present application provide a kind of session management device, described device application target base station, comprising:

Receiving module receives the switching request that the source base station that terminal is currently accessed is sent, the mark of the second class PDU session is only carried in the switching request；Alternatively, carrying the mark of the first kind PDU session and the mark of the second class PDU session in the switching request；Alternatively, the mark and the first instruction of the PDU session of the activation of the terminal are carried in the switching request, the first kind in the mark of PDU session of first instruction for marking the activation of the terminal PDU session；

Sending module, for sending the message for being used to indicate the operation that the 4th equipment of the core network executes the invalid first kind PDU session to the 4th equipment of the core network.

29th aspect, the embodiment of the present application provide a kind of session management device, and described device is applied to the 4th equipment of the core network, comprising:

Receiving module, for during terminal is switched to target BS from source base station, receiving the mark for the second class PDU session that source base station or target BS are sent；

Sending module, for sending to the first equipment of the core network for notifying first equipment of the core network to update the message of the context of the second class PDU session.

In a kind of possible design, the receiving module, specifically for receiving the path integration message of the target BS transmission, the path integration message carries the mark of the second class PDU session.

In a kind of possible design, the receiving module carries the mark of the second class PDU session specifically for receiving the switching request of the source base station transmission in the switching request.

In a kind of possible design, described device further include:

Processing module, for determining that first kind PDU session, the first kind PDU session are the PDU session in the PDU session of the activation for the terminal that the 4th equipment of the core network saves in addition to the corresponding second class PDU session of the mark based on the mark of the second class PDU session；

In a kind of possible design, processing module is also used to after determining first kind PDU session based on the mark of the first kind PDU session, and the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.

In a kind of possible design, the receiving module is also used to receive the mark for the third class PDU session that the source base station or target BS are sent, and the third class PDU session is the PDU session for being recorded as inactive state；

The sending module, for sending the message for being used to indicate the operation for executing the invalid third class PDU session to first equipment of the core network.

In a kind of possible design, described device further include:

Processing module, for the state of the third class PDU session to be converted to Idle state by activated state after the mark that the receiving module receives the source base station third class PDU session that perhaps target BS is sent or deletes the third class PDU session.

In a kind of possible design, the sending module, it is also used to: after the mark that the receiving module receives the third class PDU session that the source base station or target BS are sent, the mark of the third class PDU session is sent to the terminal, the terminal is used to indicate by the state of the third class PDU session and is set as Idle state.

30th aspect, the embodiment of the present application provide a kind of session management device, and described device is applied to terminal, comprising:

Receiving module is used to indicate the message for executing the operation of invalid first kind Packet Data Unit PDU session for during terminal is switched to target BS from the source base station being currently accessed, receive that the source base station or the 4th equipment of the core network send；

Processing module, for executing the operation of the invalid first kind PDU session based on the message.

30th on the one hand, the embodiment of the present application also provides a kind of 4th equipments of the core network, 4th equipment of the core network includes communication interface, processor and memory, the communication interface is used for sending and receiving data, the memory is used to read the software program stored in the memory and realizes the method that any one design of the 25th aspect or above-mentioned 25th aspect provides for storing software program, the processor.

32nd aspect, the embodiment of the present application provides a kind of terminal, the terminal includes transceiver, processor and memory, the transceiver is used for sending and receiving data, the memory is used to read the software program stored in the memory and realizes the method that any one design of the 26th aspect or above-mentioned 26th aspect provides for storing software program, the processor.

33rd aspect, the embodiment of the present application provides a kind of base station, the base station includes transceiver, processor and memory, the transceiver is used for sending and receiving data, the memory is for storing software program, and the processor is used to read the software program stored in the memory and realizes the method that any one design of the 23rd aspect or above-mentioned 23rd aspect provides, or the method provided for realizing any one of twenty-fourth aspect or above-mentioned twenty-fourth aspect design.

Detailed description of the invention

Figure 1A is a kind of system architecture schematic diagram provided by the embodiments of the present application；

Figure 1B is another system architecture schematic diagram provided by the embodiments of the present application；

Fig. 2 is a kind of status diagram provided by the embodiments of the present application；

Fig. 3 is conversation managing method schematic diagram provided by the embodiments of the present application；

Fig. 4 A is a kind of timer configuration method schematic diagram provided by the embodiments of the present application；

Fig. 4 B is another timer configuration method schematic diagram provided by the embodiments of the present application；

Fig. 4 C is another timer configuration method schematic diagram provided by the embodiments of the present application；

Fig. 5 A is a kind of timers trigger method schematic diagram provided by the embodiments of the present application；

Fig. 5 B is another timers trigger method schematic diagram provided by the embodiments of the present application；

Fig. 5 C is another timers trigger method schematic diagram provided by the embodiments of the present application；

Fig. 6 A is a kind of state synchronized schematic diagram provided by the embodiments of the present application；

Fig. 6 B is another state synchronized schematic diagram provided by the embodiments of the present application；

Fig. 7 is cell switching method schematic diagram provided by the embodiments of the present application；

Fig. 8 A~Fig. 8 C is the first equipment of the core network schematic diagram provided by the embodiments of the present application；

Fig. 9 A~Fig. 9 E is base station schematic diagram provided by the embodiments of the present application；

Figure 10 A~Figure 10 D is terminal schematic diagram provided by the embodiments of the present application；

Figure 11 A~Figure 11 B is the second equipment of the core network schematic diagram provided by the embodiments of the present application；

Figure 12 A~Figure 12 C is the 4th equipment of the core network schematic diagram provided by the embodiments of the present application；

Figure 13 is timers trigger method schematic diagram in the base station switching of terminal provided by the embodiments of the present application；

Figure 14 A to Figure 14 C is the base station switch method schematic diagram of terminal provided by the embodiments of the present application.

Specific embodiment

The embodiment of the present application can be adapted for 4G (forth generation mobile communication system) evolution system, such as LTE (Long Term Evolution, long term evolution) system, it or can also be 5G (the 5th Generation Mobile Communication System) system, such as use the access net of novel radio access technology (new radio access technology, New RAT)；The communication systems such as CRAN (Cloud Radio Access Network, cloud wireless access network).

Figure 1A illustrates a kind of applicable system architecture schematic diagram of the embodiment of the present application.It should be understood that the embodiment of the present application is not limited in system shown in FIG. 1, in addition, the device in Figure 1A can be hardware, be also possible to the software functionally divided or more than both combine after structure.As shown in Figure 1A, system architecture provided by the embodiments of the present application includes terminal, base station, the first equipment of the core network, the second equipment of the core network, third equipment of the core network and the 4th equipment of the core network.Wherein, terminal can be communicated by base station with the first equipment of the core network, the second equipment of the core network and the 4th equipment of the core network.It is communicated between first equipment of the core network and the 4th equipment of the core network, in addition may be collectively referred to as control plane network element between the first equipment of the core network and the 4th equipment of the core network.4th equipment of the core network is connect with third equipment of the core network by communication interface.

Control plane network element (English: Control Plane, referred to as: CP) may include is authentication and mobility management entity (English: Authentication and Mobility Management Function, referred to as: AMF), conversation management functional entity (English: Session Management Function, referred to as: SMF), and SDN controller, gateway control face (GW-C), mobility management entity (English Mobility Management Entity, abbreviation MME) or the fusion of the above network element after all or part of control function that is formed.Control plane network element is responsible for mobile management, forward-path management in mobile network, such as to forwarding surface gateway (GW-U) downward message forwarding strategy, indicates that GW-U carries out Message processing according to message forwarding strategy And forwarding.Wherein, AMF is responsible for UE authentication and mobile management, NAS message routing, SMF selection etc.；SMF is responsible for session management, and such as conversation establishing is modified, and deletes.UPF selection, UE IP address distribution etc..It with the first equipment of the core network is in addition SMF in the application subsequent descriptions, the 4th equipment of the core network is illustrated for being AMF for the first equipment of the core network is SMF and the 4th equipment of the core network is AMF referring to specific system architecture shown in Figure 1B.

Second equipment of the core network specifically can be forwarding surface network element (English: User Plane Function, abbreviation: UPF), as shown in Figure 1B.UPF is responsible for Message processing and forwarding.It can be Packet Data Network's (English: packet data network, referred to as: PDN) gateway (English: Gate Way, physics or the virtual forwarding devices such as forwarding surface function referred to as: GW), the forwarding surface function of gateway (English: Serving Gate Way, referred to as: S-GW), router, interchanger.

Third equipment of the core network specifically can be policy control functions entity (English: Policy Rules Function, it referred to as: PCF) or is policy and charging control functional entity (English: Policy and Charging Rules Function, abbreviation: PCRF).Wherein, PCF or PCRF is responsible for policy control decision and is controlled based on flow based charging.Third equipment of the core network can also be user data management entity (English: Subscriber Data Management, referred to as: SDM), or home signature user server (English: Home Subscriber Server, referred to as: HSS).User data management entity English is also can correspond to User Data Management, is referred to as also can correspond to UDM.SDM, UDM or HSS are used to help unified management of operator's realization to all data related to user.

Base station can also be known as access node (English: Access Node, abbreviation: AN), as shown in Figure 1B, provide wirelessly access for terminal.Access node specifically can be global mobile communication (English: Global System for Mobile communication, referred to as: GSM) system or CDMA (English: Code Division Multiple Access, base station (English: Base Transceiver Station referred to as: CDMA) in system, referred to as: BTS), it is also possible to wideband code division multiple access (English: Wideband Code Division Multiple Access, base station (NodeB) referred to as: WCDMA) in system, it can also be the evolved base station (English: Evo in LTE system Lutional Node B, referred to as: eNB or eNodeB), base station equipment, small base station equipment, wireless access node (WiFi AP) either in future 5G network, wireless intercommunication microwave access base station (English: Worldwide Interoperability for Microwave Access Base Station, referred to as: WiMAX BS) etc., the application does not limit this.

Terminal, alternatively referred to as access terminal, user equipment (English: User Equipment, referred to as: UE), subscriber unit, subscriber station, movement station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless telecom equipment, user agent or user apparatus etc..It is illustrated by taking UE as an example in Figure 1B.Terminal can be cellular phone, wireless phone, session initiation protocol (English: Session Initiation Protocol, referred to as: SIP) phone, wireless local loop (English: Wireless Local Loop, referred to as: WLL) stand, personal digital assistant (English: Personal Digital Assistant, referred to as: PDA), handheld device with wireless communication function, it calculates equipment or is connected to other processing equipments of radio modem, mobile unit, wearable device, internet-of-things terminal equipment, such as fire detection sensor, intellectual water meter/ammeter, factory's monitoring device etc..

It in addition can also include network application function (English: Application Function in system architecture, referred to as: AF), user data management entity (English: Subscriber Data Management, referred to as: SDM) and data network is (English: Data Network, referred to as: DN), as shown in Figure 1B.

Data network (English: Data Network, referred to as: DN), data transport service is provided for user, can be PDN network, such as internet (Internet), IP multimedia service (English: IP Multi-media Service, abbreviation: IMS) etc..

AF mainly carries out dynamic strategy/charging control to forwarding surface behavior.These business need dynamic strategy and charging control.AF transmits the dynamic session information that PCF needs, and receives the specific information of IP connection access net (IP-CAN) and the confirmation of IP-CAN bearing bed event.

It should be noted that it is multiple involved in the application, refer to two or more."and/or" describes the incidence relation of affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".It will also be appreciated that these message, request, equipment and equipment of the core network should not necessarily be limited by these terms although may describe various message, request, equipment and equipment of the core network using term first, second, third, etc. in the embodiment of the present application.These terms are only used to for message, request, equipment and equipment of the core network being distinguished from each other out.

In addition, PDU session is related to two states in the embodiment of the present application: Idle state and activated state.Wherein, the state of PDU session is for describing user face connection state of the PDU session between UE and UPF.Specific name can be session management state, or session connection state, or be titles of other possible description session status, in the present invention without limitation to the specific name of the state of PDU session.The state of PDU session is stored in UE and SMF, it is also possible to while being stored in AMF, UPF.

Idle state refers to that user face connection of the PDU session between UE and UPF is not present, and may be specifically the combination of the one or more in following operation:

1, UPF deletes or hangs up the information (such as the IP address of base station, Tunnel Identifier, port numbers etc., so that UPF can not be sent to base station after downlink data reaches UPF) of respective base station side in NG3 interface.

2, base station, which may delete, perhaps hangs up the corresponding radio resource of PDU session (radio resource in the present invention can be the combination that the running time-frequency resource for carrying PDU session corresponding data is also possible to radio-resource-configuration DRB either these situations) and deletes or hang up NG3 interface.

3, UE deletes or hangs up corresponding radio resource according to the configuration of base station.

Activated state refers to that user face connection of the PDU session between UE and UPF exists, including eat dishes without rice or wine connection and the connection of the NG3 interface between base station and UPF between UE and base station, when session in activated state has the arrival of uplink and downlink data, it can be transmitted directly between UE and UPF.

The embodiment of the present application provides a kind of conversation managing method and device, a timer is configured for each PDU session, for monitor no data in PDU session it is transmitting continuous to timer expiry when triggering execute the operation of the invalid PDU session, wherein the operation of invalid PDU session can be execute the PDU session enter Idle state, it can also be and delete the PDU session, to provide the implementation that a kind of state for realizing PDU Session is converted to Idle state by activated state.

Wherein, the state of PDU session (Session) is stored in UE, in base station (AN) and the SMF of core-network side, each PDU session has respectively different states, different SMF manages different PDU sessions, as shown in Figure 2, SMF A is for managing session A and session B, SMF B for managing session C.The state of PDU session is divided into two states, Idle state (IDLE) and activated state (ACTIVE).

The embodiment of the present application is illustrated with reference to the accompanying drawing.

Shown in Figure 3 is a kind of flow diagram of conversation managing method provided by the embodiments of the present application.

S301, SMF receive the request message of activation PDU session.

It should be noted that, activation PDU session, which can be, establishes the PDU session, it can also be that PDU session is transformed into activated state by Idle state, or PDU session (when specifically can be UE from non-3 gpp (non-3GPP) network switching to 3GPP network, the PDU session created when 3GPP session is mapped to from non-3GPP session) is created when can be execution switching.

S302, SMF send the timer (Timer) of the PDU session to the second equipment.

S303, after the second equipment receives the timer of the PDU session, no data is transmitted on detecting the PDU session, and when continueing to the timer expiry, sends the operation of the invalid PDU session to the first equipment of the core network First message.

It should be noted that timer can after data are transmitted in PDU session every time in the given time no data transmit when unlatching, timer open until time-out this period in no data transmission, then trigger transmission first message.Timer can also be opened after data are transmitted in PDU session every time, then open in timer until no data transmission in this period of time-out, then trigger transmission first message.In addition, if sending data in the PDU session, resetting timer opening in this period to time-out.

Second equipment described in the embodiment of the present application can be UPF, can also be base station, or can be terminal.That is, triggering the operation of the invalid PDU session can be executed by the second equipment of the core network, it can also be executed, can also be executed by terminal by base station.

Wherein, the operation of the invalid PDU session, which can be, is converted to Idle state by activated state for the state of the PDU session, or can be and delete the PDU session.

It is specifically described for configuring timer when PDU session establishment below, i.e., request message is PDU session establishment request message.

Referring to fig. 4 shown in A~4C, Fig. 4 A be SMF by the timer configuration of PDU session to the schematic diagram of AN, Fig. 4 B be SMF by the timer configuration of PDU session to the schematic diagram of UPF, Fig. 4 C be SMF by the timer configuration of PDU session to the schematic diagram of UE.

SMF by the timer configuration of PDU session to the process of base station, as shown in Figure 4 A:

S401a, UE send PDU session establishment to SMF and request (PDU session Setup Request) message.

S402a, SMF and SDM carry out the PDU session authentication (PDU Session Authorization).Specially SMF gets the relevant signing information of session from SDM, such as access point name (English: Access Point Name, referred to as: APN) information, data network title (English: Data Network Name, abbreviation DNN), session and service continuity mode (English: Session and Service Continuity, abbreviation: SSC) etc., authenticate the PDU session that UE is requested according to signing information.

Tactful retrieval (Policy Retrieval) is carried out between S403a, SMF and PCF.Specifically, SMF obtains the corresponding qos policy of the PDU session, charging policy etc. to PCF.

S404a, SMF are that PDU session configures timer.Such as: SMF is to be sliced to service for specific network, is sliced according to the network of service, SMF is configured with corresponding timer, and timer is properly termed as Session inactive timer.Wherein network slice is the logic entity that operator divides network to provide customization network service in 5G, it can specifically be divided according to the type of service of service, such as support mobile broadband (English: Mobile broad band, referred to as: the MBB) slice of business, support the slice of (English: Internet of Things, abbreviation: IOT).It is also possible to be divided according to different network tenants, such as exclusively for the network that some large enterprises or tissue provide.

Optionally, the affiliated policy information of PDU session that timer can also be saved by PCF according to itself is that the PDU session configures timer, and is sent to SMF.Or timer is that SMF is got from signing information.

S405a, SMF send the timer to AN.

Specifically, SMF can carry timer requests (PDU Session Setup Request) message or PDU session establishment to receive to be sent to AN in (PDU Session Setup Accept) message in PDU session establishment, is illustrated by taking PDU session establishment received message as an example in Fig. 4 A.

Optionally, the instruction information of the operation of the invalid PDU session of execution needed for SMF can also obtain the timer expiry of the PDU session from PCF.

In a kind of possible implementation, the finger of the operation of the invalid PDU session of the instruction that SMF can also will acquire Show that information is sent to AN, so that AN is being monitored when no data in PDU session transmits, can trigger to be used to indicate that PDU session status is converted into the message that Idle state still deletes the PDU session to SMF transmission.Specifically, SMF, which can carry the instruction message, is sent to AN in PDU Session Setup Accept message.The instruction information, which can be to be used to indicate, is converted to Idle state (SM handling for session idle) or instruction deletion PDU session (delete Session) for the state of the PDU session.

In addition, in the case where instruction information is not sent to AN by SMF, SMF detects in the PDU session that no data is transmitted receiving AN, and when continueing to the timer expiry, when the message of the operation of the invalid PDU session sent, determine that PDU session status is converted to Idle state and still executes the deletion PDU session by execution according to the instruction information obtained from PCF.

Process of the SMF by the timer configuration of PDU session to UPF is detailed below, as shown in Figure 4 B:

S401a~S404a of S401b~S404b A referring to fig. 4, details are not described herein for the embodiment of the present application.

S405b, SMF send the timer to UPF.

Specifically, SMF can carry timer is sent to UPF in conversation establishing request (Create Session Request) message, in Fig. 4 B by taking conversation establishing is requested as an example.

In a kind of possible implementation, the instruction information of the operation of the invalid PDU session of the instruction that SMF can also will acquire is sent to UPF, to which UPF is being monitored when no data in PDU session transmits, it can trigger to be used to indicate that PDU session status is converted into the message that Idle state still deletes the PDU session to SMF transmission.Specifically, SMF, which can carry the instruction message, is sent to AN in PDU Session Setup Accept message.The instruction information, which can be to be used to indicate, is converted to Idle state (SM handling for session idle) or instruction deletion PDU session (delete Session) for the state of the PDU session.

In addition, in the case where instruction information is not sent to AN by SMF, SMF detects in the PDU session that no data is transmitted receiving UPF, and when continueing to the timer expiry, when the message of the operation of the invalid PDU session sent, determine that PDU session status is converted to Idle state and still executes the deletion PDU session by execution according to the instruction information obtained from PCF.

Process of the SMF by the timer configuration of PDU session to UE is detailed below, as shown in Figure 4 C:

S401a~S404a of S401c~S404c A referring to fig. 4, details are not described herein for the embodiment of the present application.

SMF sends the message of the operation for the invalid PDU session by AN to UE.

It is specific:

S405c, SMF send conversation establishing request (Create Session Request) message to AN or PDU session establishment receives (PDU Session Setup Accept) message.In Fig. 4 C by taking conversation establishing request message as an example

In a kind of possible implementation, Create Session Request carries the timer (Session Inactive timer) of PDU session.

In alternatively possible implementation, the timer of PDU session is carried in Create Session Request and is used to indicate the instruction information of the operation of the invalid PDU session.

The timer is sent to UE after receiving the Create Session Request message by S406c, AN.

The instruction information state for being used to indicate the operation of the invalid PDU session is carried in Create Session Request message Under, the instruction information is also sent to UE by AN.

Timer and instruction information can be carried and set (RRC Connection reconfiguration) message in RRC connection reconfiguration by AN, or UE is sent in RRC Connection direct transfer message, in Fig. 4 C by taking RRC Connection message as an example, example is set to RRC connection reconfiguration in Fig. 4 C.

S407c, UE send RRC connection reconfiguration to AN and set response (RRC Connection reconfiguration response) message.

S408c, AN send session establishment to SMF and respond (Session Setup Response) message.

Based on scheme described in the corresponding embodiment of Fig. 4 A, the process that the invalid PDU session is triggered by AN is detailed below, referring to shown in Fig. 5 A.

S501a, AN detect that no data transmits and continues to timer expiry in a certain PDU session.

When configuring PDU session, if AN receives the instruction information for being used to indicate invalid PDU session that SMF is sent, if instruction information is Session Idle, it is determined that triggering executes PDU session and is converted to Idle state, if instruction information is delete Session, it is determined that triggering, which executes, deletes the PDU session.In Fig. 5 A, it is illustrated for indicating that information is Session Idle.

S502a-S503a, AN are sent to SMF by AMF and are used to indicate the first message that PDU session is converted to Idle state.

Wherein first message can be inactive request (the PDU Session Inactive Request) message of PDU session or session status transmission request (Session status transition request) message.By taking PDU Session Inactive Request as an example, the mark of the PDU session can be carried in PDU Session Inactive Request message.The mark of PDU session can be the ID of PDU session, and certain other information that can identify PDU session are suitable for the application, and details are not described herein by the application.In addition, the application in the subsequent mark for being related to PDU session, illustrates by taking the ID of PDU session as an example.Cause value (cause) can also be carried in PDU Session Inactive Request message, cause value is used to indicate the timer expiry of the PDU session.

In addition, if instruction information is delete Session, then first message, which can be, deletes session request (delete session request) message, the mark of the PDU session can be wherein carried in delete session request message, cause value can also be carried, cause value is used to indicate the timer expiry of the PDU session.

In one possible implementation, when configuring PDU session, if AN does not receive the instruction information for being used to indicate invalid PDU session of SMF transmission, after then SMF receives the first message by AN triggering, determine that the state for executing PDU session is converted to Idle state and still executes the deletion PDU session based on the instruction information obtained from PCF.

S504a, SMF are sent to UPF is used to indicate the message for deleting the corresponding information relevant to AN of the PDN session.

Wherein, it is used to indicate and deletes the message of information relevant to the PDN session and can be session and enter Idle state transmission request (Session-idle transition Request) message, be also possible to discharge access bearer request (Release Access Bearers Request) message etc..PDU Session ID is carried in the Session-idle transition Request message.Cause value can also be carried in the Session-idle transition Request message, cause value indicates timer expiry (Session Inactive timer time-out).In Fig. 5 A by taking session enters Idle state transmission request (Session-idle transition Request) message as an example.

S505a, UPF delete the corresponding information relevant to AN of the corresponding PDN session of PDU Session ID.Wherein UPF can also hang up the corresponding NG3 interface message of (suspend) PDU session.

In a kind of possible design, if first message instruction is to delete the PDU session, in step S504a, SMF sends to UPF and is used to indicate the message for deleting information relevant to the PDN session, such as delete session request message.Information relevant to the PDN session is deleted to which UPF is executed.

Optionally, further includes:

S506a, UPF send session to SMF and enter Idle state transmission response (Session-idle transition Response) message.

S507a, SMF are sent to AMF is used to indicate the message that AMF sets the PDU session to the free time.

Indicate that the message that the PDU session is set as the free time can be session and enters Idle state transmission response (Session-idle transition Request Response) message by AMF.Idle state transmission response (Session-idle transition Request Response) message is entered with session in Fig. 5 A

Optionally, AMF sets Idle state for the state of the PDU session after receiving the session and entering Idle state transmission response.

The state of PDU session is set Idle state (Session-IDLE) by S508a, SMF.

Optionally, SMF sets the state of PDU session to the opportunity of Idle state (Session-IDLE), can also be after receiving the first message.

In addition, the embodiment of the present application does not limit the sequencing that step S508a and step S507a is executed.

S509a, AMF send the message for being used to indicate AN and discharging the context of the PDU session to AN.Wherein, being used to indicate base station can be the message that the context of the PDU session discharges session context release command (Session Context Release Command), in Fig. 5 A by taking session context release command as an example.

The corresponding radio resource of the PDU session is deleted or is hung up by S510a, AN.

Specifically, (suspend) is hung up perhaps to delete the corresponding radio resource carrying of the PDU session (English: Data Radio Bearer abbreviation: DRB) or delete the radio resource distributed to transmit the data of the PDU session.

It should be noted that in the case where multiple PDU sessions are multiplexed DRB, AN will be deleted the mapping relations between the data and DRB of PDU session, so that specific DRB be made to be no longer used to the data that transmission is in the PDU session of IDLE state.

Specifically, AN can delete mapping relations of the corresponding service quality of the PDU session (English: Quality of Service, abbreviation: QoS) between stream (flow) and DRB.

Optionally, AN updates access layer (English: Access Stratum, referred to as: AS) filter (AS-level filter), the filter executes the mapping of QoS flow to DRB for AN, it can be either specifically inactive (inactive) or the free time by information flag relevant to PDU session in AS-level filter by information deletion relevant to PDU session in AS-level filter.

If UE is in RRC unactivated state, after executing S510a, S514a is executed, S511a is otherwise executed.

S511a, AN send the message for being used to indicate UE and deleting or hanging up the corresponding radio resource of PDU session to UE.

Wherein, being used to indicate UE and deleting or hang up the message of the corresponding radio resource of PDU session can be RRC connection reconfiguration and sets (RRC Connection Reconfiguration) message, be set to example in Fig. 5 A with RRC connection reconfiguration.

It is used to indicate UE and deletes or hang up the mark that can carry radio resource carrying DRB that is to be deleted or hanging up in the message of the corresponding radio resource of PDU session.

S512a, UE delete or hang up the corresponding DRB of PDU session.

UE can also set Idle state for the state of the PDU session.

Specifically, UE can also delete the mapping relations of QoS flow to the DRB of the PDU session.

Optionally, before the state of the PDU session is set Idle state by UE, judge that the corresponding whole radio resources of the PDU session are deleted or hang up.

S513a, the UE send RRC connection reconfiguration to AN and set completion (RRC Connection Reconfiguration Complete) message.

S514a, the AN send session context release to AMF and complete (Session Context release Complete) message.

Based on scheme described in the corresponding embodiment of Fig. 4 B, the process that the invalid PDU session is triggered by UPF is detailed below, referring to shown in Fig. 5 B.

S501b, UPF detect that no data transmits and continues to timer expiry in a certain PDU session.

When configuring the PDU session, if UPF receives the instruction information for being used to indicate invalid PDU session that SMF is sent, if instruction information is SM handling for Session Idle, then determine that triggering executes PDU session and is converted to Idle state, if instruction information is delete Session, it is determined that triggering, which executes, deletes the PDU session.In Fig. 5 B, it is illustrated for indicating that information is SM handling for Session Idle.

S502b, UPF send to SMF and are used to indicate the first message that the PDU session is converted to Idle state.

Wherein first message can be inactive request (the PDU Session Inactive Request) message of PDU session, in Fig. 5 B by taking the inactive request of session as an example.The mark of the PDU session can be carried in PDU Session Inactive Request message.The mark of PDU session can be the ID of PDU session, and certain other information that can identify PDU session are suitable for the application, and details are not described herein by the application.Cause value (cause) can also be carried in PDU Session Inactive Request message, cause value is used to indicate the timer expiry of the PDU session.

In addition, first message can be delete session request message if instruction information is delete Session.

In one possible implementation, when configuring PDU session, if UPF does not receive the instruction information for being used to indicate invalid PDU session of SMF transmission, after then SMF receives the first message by UPF triggering, determine that the state for executing PDU session is converted to Idle state and still executes the deletion PDU session based on the instruction information obtained from PCF.

S503b~S504b, SMF send the message for being used to indicate AN and discharging the context of the PDU session to AN by AMF.Wherein, being used to indicate AN can be session context release command (Session Context Release Command) for the message that the context of the PDU session discharges or can be inactive request (the PDU Session Inactive Request) message of PDU session.The mark of PDU session will can be carried by being used to indicate base station in the message of the context release of the PDU session (in the application by taking the ID of PDU session as an example).

The corresponding radio resource of the PDU session is deleted or is hung up by S505b, AN.

Specifically, hanging up (suspend) or deleting the corresponding radio resource carrying of the PDU session (English: Data Radio Bearer, abbreviation: DRB).

It should be noted that deleting the mapping relations between the data and DRB of PDU session in the case where multiple PDU sessions are multiplexed DRB.

In addition, AN can also delete the mapping relations between the corresponding QoS flow and DRB of the PDU session.

Specifically, AN updates AS-level filter, the filter executes the mapping of QoS flow to DRB for AN, it can will be either specifically inactive (inactive) or the free time by information flag relevant to PDU session in AS-level filter by information deletion relevant to PDU session in AS-level filter.

S506b, AN send the message for being used to indicate UE and deleting or hanging up the corresponding radio resource of PDU session to UE.

Wherein, the message for being used to indicate UE deletion or hanging up the corresponding radio resource of PDU session can be RRC connection Reconfigure (RRC Connection Reconfiguration) message.

S507b, UE delete or hang up the corresponding DRB of PDU session.

UE can also set Idle state for the state of the PDU session.

S508b, the UE send RRC connection reconfiguration to AN and set completion (RRC Connection Reconfiguration Complete) message.

S509b, the AN are sent to AMF is used to indicate the message that AMF sets the state of PDU session to Idle state.

Wherein, it is used to indicate AMF and the message that the state of PDU session is set as Idle state be can be into inactive response (the PDU Session Inactive response) message of PDU session.

The state of the PDU session is set Idle state by S510b, the AMF.

The message that the state of PDU session is set as Idle state is transmitted to SMF by the AMF that is used to indicate received by S511b, the AMF.

The state of the PDU session is set Idle state by S512b, the SMF.

S513b, the SMF are sent to UPF is used to indicate the message for deleting the corresponding information relevant to AN of the PDN session.

Wherein, it is used to indicate and deletes the message of information relevant to the PDN session and can be inactive response (the PDU Session Inactive response) message of PDU session.PDU Session ID is carried in the PDU Session Inactive response message.

S514b, UPF delete the corresponding information relevant to AN of the PDN session.Wherein UPF can also delete the corresponding NG3 interface message of PDU session.

Through the above scheme, by the timer configuration of PDU session in UPF, it is possible to reduce complexity of the AN based on PDU monitoring session timer.In this scenario, AN can configure timer individually for each UE, and the timer of UE and the timer of PDU session are mutually indepedent.

Based on the scheme of the corresponding embodiment description of Fig. 4 C, the process that the invalid PDU session is triggered by UE is detailed below, referring to shown in Fig. 5 C.

S501c, UE detect that no data transmits and continues to timer expiry in a certain PDU session.

When configuring PDU session, if UE receives the instruction information for being used to indicate invalid PDU session that SMF is sent, if instruction information is SM handling for Session Idle, then determine that triggering executes PDU session and is converted to Idle state, if instruction information is delete Session, it is determined that triggering, which executes, deletes the PDU session.In Fig. 5 C, it is illustrated for indicating that information is SM handling for Session Idle.

S502c-S503c, UE are sent to SMF by AN and are used to indicate the first message that PDU session is converted to Idle state.

Wherein first message can be inactive request (the PDU Session Inactive Request) message of PDU session.The ID of the PDU session can be carried in PDU Session Inactive Request message.Cause value (cause) can also be carried in PDU Session Inactive Request message, cause value is used to indicate the timer expiry of the PDU session.

In one possible implementation, when configuring PDU session, if UE does not receive the instruction information for being used to indicate invalid PDU session of SMF transmission, after then SMF receives the first message by UE triggering, determine that the state for executing PDU session is converted to Idle state and still executes the deletion PDU session based on the instruction information obtained from PCF.

S504c, SMF are sent to UPF is used to indicate the message for deleting the corresponding information relevant to AN of the PDN session.

Wherein, it is used to indicate and deletes the message of information relevant to the PDN session and can be inactive request (the PDU Session Inactive Request) message of PDU session, in Fig. 5 C by taking the inactive request of PDU session as an example.PDU Session ID is carried in the PDU Session Inactive Request message.Cause value can also be carried in the PDU Session Inactive Request message, cause value indicates timer expiry (Session Inactive timer time-out).

S505c, UPF delete the corresponding information relevant to AN of the PDN session.Wherein UPF can also delete the corresponding NG3 interface message of PDU session.

Optionally, further includes:

S506c, UPF send the inactive request of PDU session to SMF and respond (PDU Session Inactive Request Response) message.

S507c, SMF send the inactive request of PDU session to AMF and respond (PDU Session Inactive Request Response) message.

Optionally, AMF sets Idle state for the state of the PDU session after receiving the inactive request response of PDU session.

The state of PDU session is set Idle state (Session-IDLE) by S508c, SMF.

S509c, AMF send the message for being used to indicate AN and discharging the context of the PDU session to AN.Wherein, it is used to indicate base station and the message that the context of the PDU session discharges be can be into session context release command (Session Context Release Command) the either inactive request response of PDU session.

The corresponding radio resource of the PDU session is deleted or is hung up by S510c, AN.

Specifically, hanging up (suspend) or deleting the corresponding DRB of PDU session.

Specifically, AN updates AS-level filter, the filter executes the mapping of QoS flow to DRB for AN, it can will be either specifically inactive or free time by information flag relevant to PDU session in AS-level filter by information deletion relevant to PDU session in AS-level filter.

S511c, AN send the message for being used to indicate UE and deleting or hanging up the corresponding radio resource of PDU session to UE.

Wherein, being used to indicate UE and deleting or hang up the message of the corresponding radio resource of PDU session can be RRC connection reconfiguration and sets (RRC Connection Reconfiguration) message.

S512c, UE delete or hang up the corresponding DRB of PDU session.

UE can also set Idle state for the state of the PDU session.

S513c, the UE send RRC connection reconfiguration to AN and set completion (RRC Connection Reconfiguration Complete) message.

S514c, the AN send PDU session context Release complete to AMF.

When UE is in the inactive connection status of RRC, the state of PDU session may be that Idle state is also likely to be activated state.After the PDU session of the last one activated state is converted to Idle state on UE, UE is converted to Idle state.

When UE is in the inactive connection status of RRC, after PDU session enters Idle state, AN sets Idle state for the state of PDU session.After entering RRC connected state hereafter to UE, need to carry out the state synchronized of PDU session with AN.

The process of state synchronized is specifically described below, referring to shown in Fig. 6 A, the schematic diagram of corresponding state synchronized process when being in the inactive connection status of RRC for UE.

S601a, UE determine that itself is in the inactive connection status of RRC.

S602a, when having upstream data to reach or receive paging request, UE sends the request message for being used to indicate the RRC connection for restoring the UE to AN.

Wherein, the request message for being used to indicate the RRC connection for restoring the UE can be RRC connection recovery request (RRC Connection Resume Request) message.It is used to indicate in the request message for the RRC connection for restoring the UE and carries parameter, parameter may include the mark of PDU session or the mark including the corresponding DRB of PDU session.It can also include the first state information of the corresponding QoS flow of PDU session in parameter, the first state information indicates that state of the QoS flow on the UE is activated state or inactive state, the state for the AN QoS flow synchronous with the UE.

It should be noted that the corresponding PDU session of mark of PDU session can be the PDU session of data transfer demands, or perhaps PDU session to be activated.

Optionally, the status information (Established PDU Session Status) that the PDU session of data transfer demands can also be carried in the request message for being used to indicate the RRC connection for restoring the UE is used to indicate the state of PDU session that AN is established on UE and is activated state or is Idle state.

The parameter that S603a, AN are carried in the request message according to the above-mentioned RRC connection for being used to indicate and restoring the UE determines PDU session to be activated.

Wherein, the state of PDU session to be activated is Idle state.

S604a, AN triggering activate the process of the PDU session.

It should be noted that the PDU session is activated that is to establish the corresponding user face connection between UE to UPF of PDU session.

Specifically, AN triggering activates the process of the PDU session, it is specifically as follows AN and sends to SMF for triggering the message that the PDU session is converted to activated state.

SMF receive it is described for after trigger the PDU being converted to the message of activated state, the PDU session to be converted to the process of activated state by execution.

S605a, AN configure the mapping relations between the corresponding QoS flow of the PDU session and DRB.

The mapping relations of configuration are sent to UE by S606a, AN.

Optionally, the second status information of the corresponding QoS flow of the PDU session is sent to terminal by AN, to indicate the state of QoS described in the terminal and base station synchronization.Second status information indicates that state of the corresponding QoS flow of the PDU session on the AN is activated state or inactive state (Idle state).

Wherein, sequencing is not distinguished between step S607a and step S605a~S606a.

Optionally, AN, which can carry the mapping relations of configuration, restores to be sent to UE in response message in RRC connection, in Fig. 6 A by taking RRC connection restores response message as an example.AN, which can also carry the second status information of the corresponding QoS flow of the PDU session, to be restored to be sent to UE in response message in RRC connection.

The state of S607a, UE based on the corresponding QoS flow of second status information PDU session synchronous with the AN, and the UE saves the mapping relations.

Referring to described in Fig. 6 B, connection management (CM) idle state is in for UE.

S601b, UE send request message to SMF by AMF.

Wherein, request message can also be service request (Service Request) message or can be active session request (Active Session Request) message, in Fig. 6 B by taking Active Session Request message as an example.Parameter is carried in Active Session Request message, parameter may include the mark of PDU session or the mark including the corresponding DRB of PDU session.It can also include the status information of the corresponding QoS flow of PDU session in parameter, status information indicates that state of the QoS flow on the UE is activated state or inactive state, the state for the SMF QoS flow synchronous with the UE.

Optionally, the status information (Established PDU Session Status) that the PDU session of data transfer demands can also be carried in the Active Session Request message is used to indicate the state of PDU session that SMF is established on UE and is activated state or is Idle state.For the state synchronized of the PDU session between UE and SMF.

After S602b, SMF receive the request message of UE transmission, complete to activate the QoS flow in the PDU session between UPF.

S603b, SMF determine the state of the QoS flow in the PDU session after completing activation.

The status information of QoS flow in the PDU session is sent to UE after the state for determining the QoS flow in the PDU session after completing activation by SMF.The status information of QoS flow in the PDU session indicates that state of the corresponding QoS flow of the PDU session on the SMF is activated state or inactive state.

Specifically, the status information of the QoS flow in the PDU session is sent to UE by AMF and AN by SMF.

Optionally, S604b, SMF can request response (Active Session response) message that the status information of the QoS flow in PDU session is first issued AMF by active session.

S605b, AMF carries the status information of the QoS flow in PDU session to be updated in (Session Context Update) message in session context, or is carried and be sent to AN in active session response (Active Session response) message.

In addition, AN is after the status information for receiving the QoS flow in the PDU session that SMF is sent, AN can QoS flow between SMF in the synchronous PDU session state, and be transmitted to UE.

The status information of QoS flow in PDU session carrying RRC can be reconfigured in (RRC Reconfiguration) message and is sent to UE by S606b, AN.

It is corresponding that the status information that S607b, the UE are sent based on the SMF with the SMF synchronizes the PDU session QoS flow state.

Optionally, can also include:

S608b, UE send RRC to AN and reconfigure response (RRC Reconfiguration response) message.

S609b, AN send session context to AMF and update response (Session context update response) message.

S610b, AMF send session context to SMF and update response (Session context update response) message.

The user face (Update Session User Plane) of more new session is executed between S611b, SMF and UPF.

S612b, SMF are sent to AMF updates conversational response (Update Session response) message.

It is detailed below for different PDU sessions, there are in the case where different states, cell switching method process, shown in Figure 7 is cell switching flow schematic diagram.S-AN indicates that source AN, T-AN indicate target AN in Fig. 7.

S701, UE send measurement report to S-AN.The wherein measurement result of the measurement result in measurement report including serving cell and adjacent cell.

S702, S-AN are determined based on the measurement report that UE is sent executes cell switching (English: Handover, abbreviation: HO).

S703, S-AN send switching request message (HO Required) to AMF.

The mark of the PDU session on the UE is carried in the switching request message.Wherein the state of the corresponding PDU session of mark of the PDU session is activated state.The corresponding PDU session of mark of the PDU session is the UE corresponding and preserve the PDU session of PDU session context in the S-AN.

S704, AMF determine the PDU session for needing to update user face context based on the mark of the PDU session.

S705, AMF are sent to SMF for notifying SMF to update the message of the user face context of the PDU session.

Wherein, the message for notifying SMF to update the user face context of the PDU session can be switching request (HO Request) message, in Fig. 7 by taking switching request as an example.Wherein, the HO Request message sent to SMF carries the mark (ID) of PDU session

S706, SMF send HO Request message to T-AN by AMF.Issue the relevant information (PDU session Info) that the PDU session can be carried in the HO Request message of T-AN.Specifically include the corresponding QoS information of PDU session, NG3 tunnel information, QoS flow ID etc..

S707, T-AN send switching request receipt (HO Request Acknowledge) to AMF.

S708, AMF send switching command (HO command) to UE by S-AN.

S709, UE complete to send switching confirmation (HO Confirm) to T-AN after switching.

S710, T-AN send switching notice (HO notify) to SMF by AMF.

S711, SMF send modification session request (Modify Session request) message to UPF, are used to indicate the relevant information that UPF modifies the PDU session.

S712, UPF send modification session request to SMF and respond (Modify Session request response) message.

The purposes of message involved in step S707~step S712 is identical as messages use in the prior art, and details are not described herein by the application.

Based on the scheme of the corresponding embodiment description of Fig. 4 A, the process for triggering the invalid PDU session by AN in handoff procedure is detailed below, it is shown in Figure 13.S-AN indicates that the source AN that terminal is currently accessed, T-AN indicate UE target AN to be cut in Figure 13.

S801, in PDU session establishment or the activation of terminal, S-AN configures the timer of the PDU session.

Specifically, the S-AN that the UE is currently accessed receives the timer for the PDU session that SMF is sent, then S-AN is configured to the timer of the PDU session.

It is inactive state by the state recording of the PDU session if the S-AN detects that no data is transmitting continuous to the timer expiry in the PDU session after S802, the S-AN receive the timer of the PDU session of SMF transmission.

For example, being inactive PDU session by the PDU conversation recording, perhaps it is marked, etc. or is updated for characterizing the PDU session ID that the PDU session is inactive state for the PDU Session ID.

S803, S-AN is when determining that being directed to UE execution is switched to T-AN from the S-AN, determine the first kind PDU session for including in the PDU session of the activation of the UE, the first kind PDU session is to be recorded as the PDU session (inactive PDU session) of inactive state, switching flow is executed for the second class PDU session, the second class PDU session is the PDU session (active PDU session) in the PDU session of the terminal in addition to the first kind session.

Specifically, the S-AN receives the measurement report (measurement report) of UE transmission, the S-AN determines whether to execute for the UE from the S-AN according to the measurement report is switched to T-AN.If it is determined that when being switched to T-AN from the S-AN for UE execution, the PDU session that inactive state is registered as in all activated PDU session of present terminal is determined at this time, to not execute switching flow for first kind PDU session, and switching flow is executed only for the second class PDU session.

In a kind of possible implementation, it includes: that the S-AN to the T-AN sends switching request (handover request) that the S-AN is executed in switching flow for the second class PDU session.

Wherein, the mark that the second class PDU session can be only carried in the switching request, the mark without carrying first kind PDU session.Alternatively, can be the mark of the mark for carrying the first kind PDU session and the second class PDU session in the switching request.For example the ID of first kind PDU session is configured in array 1, the ID of the second class PDU session is configured in array 2.Alternatively, the mark and the first instruction of all activated PDU session of the terminal can also be carried in the switching request, the first kind PDU session in the PDU session of activation of first instruction for marking the terminal.For example, the PDU session id of all activation of terminal is placed in an array, distinguished for first kind PDU session and the second class PDU session by different labels, for example first kind PDU session tokens are 0, the second class PDU session tokens are 1.

It should be noted that, either first kind PDU session id or the second class PDU session id can be carried in the context (active PDU session info) of the PDU session of activation the mark (ID) of the PDU session of the activation of UE, can also be carried except active PDU session info.

For example, AS layers of content (AS content) can be carried in switching request.It may include the context of the PDU session of all activation of terminal in AS content.It include the ID of the PDU session of the activation of terminal in the context of the PDU session of all activation of terminal, and the ID of first kind PDU session is also carried except the context of the PDU session in all activation of terminal and in switching request, or the instruction of ID and first of all activated PDU session is also carried except the context of the PDU session in all activation of terminal and in switching request.Or, it can only include the context (active PDU session info) of the second class PDU session in AS content in switching request, the ID (inactive PDU session IDs) of first kind PDU session is carried except active PDU session info and in switching request.Alternatively, only carrying active PDU session info in switching request.

In alternatively possible implementation, the S-AN executes that include: the S-AN in switching flow send switching request (handover required) to the AMF for the second class PDU session.Wherein, the mark that the second class PDU session can be only carried in the switching request, the mark without carrying first kind PDU session.Alternatively, the switching is asked It can be the mark of the mark for carrying the first kind PDU session and the second class PDU session in asking.For example the ID of first kind PDU session is configured in array 1, the ID of the second class PDU session is configured in array 2.Alternatively, the mark and the first instruction of all activated PDU session of the terminal can also be carried in the switching request, the first kind PDU session in the PDU session of activation of first instruction for marking the terminal.For example, the PDU session id of all activation of terminal is placed in an array, distinguished for first kind PDU session and the second class PDU session by different labels, for example first kind PDU session tokens are 0, the second class PDU session tokens are 1.

For example, transparent vessel (source to target transparent container) can be carried in switching request.It may include the context of the PDU session of all activation of terminal in source to target transparent container.It include the ID of the PDU session of the activation of terminal in the context of the PDU session of all activation of terminal, and the ID of first kind PDU session is also carried except the context of the PDU session in all activation of terminal and in switching request, or the instruction of ID and first of all activated PDU session is also carried except the context of the PDU session in all activation of terminal and in switching request.Or, it can only include the context (active PDU session info) of the second class PDU session in AS content in switching request, the ID (inactive PDU session IDs) of first kind PDU session is carried except active PDU session info and in switching request, alternatively, only carrying active PDU session info in switching request.

Below on the basis of Figure 13, the process for triggering the invalid PDU session by AN in handoff procedure is detailed below, referring to shown in Figure 14 A~Figure 14 C.

It show referring to Figure 14 A and is switched based on Xn (interface between AN and AN) interface.To include the context (active PDU session info) of the second class PDU session in the AS content in switching request, for the ID (inactive PDU session IDs) that first kind PDU session is carried except active PDU session info and in switching request.

S901a, in PDU session establishment or the activation of terminal, S-AN configures the timer of the PDU session.

It is inactive state by the state recording of the PDU session if the S-AN detects that no data is transmitting continuous to the timer expiry in the PDU session after S902a, the S-AN receive the timer of the PDU session of SMF transmission.

S903a, UE send measurement report (measurement report) to the S-AN.

S904a, the S-AN receive the measurement report (measurement report) of UE transmission, and the S-AN determines whether to execute for the UE from the S-AN according to the measurement report is switched to T-AN.

S-AN is when determining that being directed to UE execution is switched to T-AN from the S-AN, determine the first kind PDU session for including in the PDU session of the activation of the UE, the first kind PDU session is to be recorded as the PDU session of inactive state, switching flow is executed for the second class PDU session, the second class PDU session is the PDU session in the PDU session of the terminal in addition to the first kind session.

Specifically, the S-AN for the second class PDU session execute switching flow in include:

S905a, the S-AN send switching request (handover request) to the T-AN.

S906a, the T-AN send switching request receipt (handover request ACK) to the S-AN.It may include the context of the second class PDU session parsed from As content by T-AN and the ID (inactive PDU session IDs) of first kind PDU session in switching request receipt.

S907a, S-AN send the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session to UE.

Wherein, it is carried in the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session: the mark of the first kind PDU session；Or, carry in the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session: the mark of the PDU session of the activation of the terminal and the first instruction, described first indicates the first kind PDU session in the PDU session of the activation for identifying the terminal.

The message for being used to indicate the operation that the terminal executes the invalid first kind PDU session can be RRC and reconfigure (RRC reconfiguration) message, as example in Figure 14 A.RRC reconfigures the ID that the first kind PDU session is carried in (RRC reconfiguration) message.In Figure 14 A by taking the operation of the invalid first kind PDU session is that the state of the first kind PDU session is converted to Idle state by activated state as an example.

S908a, the UE send RRC to S-AN and reconfigure completion (RRC reconfiguration complete) message.

The corresponding state of first kind PDU session in RRC reconfiguration message (inactive PDU session) is updated to Idle state (session-IDLE) by S909a, UE.

S910a-S916a is the process that the switching of core network diameter is executed for the second class PDU session.

S910a, T-AN send N2 path integration (N2path switch) message to AMF, and N2path switch carries the context of the second class PDU session.N2path switch can also carry the mark of first kind PDU session.Interface of the N2 between base station and AMF.N2path switch is used to indicate AMF and path is gone to T-AN by S-AN, updates the context of the second class PDU session.

S911a, AMF send N11message (N11 message) to SMF, and N11message carries the context of the second class PDU session.Interface of the N11 between SMF and AMF.N11message is used to indicate the context that SMF updates the second class PDU session.

S912a, SMF send N4 session modification (N4session modify) to UPF, and N4session modify carries the context of the second class PDU session.Interface of the N4 between SMF and UPF.

S913a, UPF send N4session modify receipt (ACK) to SMF.

S914a, SMF send N11session modify ACK to AMF.

S915a, AMF send N2path switch ACK to T-AN.

S916a, T-AN send UE context release message (UE content release) to S-AN.

S917a, the AMF described in S910 is after the N2 path integration (N2path switch) for receiving S-AN transmission, in the case where not carrying the mark of first kind PDU session in N2path switch, the AMF determines first kind PDU session based on the mark of the second class PDU session.The mark of all activated PDU session of terminal is preserved in AMF, so that AMF determines the PDU session in the PDU session of the activation of the terminal saved in addition to the corresponding second class PDU session of the mark.

S918a, the AMF send the message for being used to indicate the operation that SMF executes the invalid first kind PDU session to SMF.The message that the operation of the invalid first kind PDU session is executed for SMF instruction can be N11message.

If the AMF described in S910a in the case where carrying the mark of first kind PDU session in N2path switch, can directly execute S918a after the N2 path integration (N2path switch) for receiving S-AN transmission.

S919a, SMF send the message for being used to indicate the operation that UPF executes the invalid first kind PDU session to UPF. The message of operation for the invalid first kind PDU session of SMF instruction execution can be N4 session and be converted to Idle state message (session-IDLE transition).

The state of the first kind PDU session is converted to Idle state by S920a, UPF.Illustrate so that the state that the operation of the invalid first kind PDU session is the first kind PDU session is converted to Idle state as an example in Figure 14 A.

S921a, the UPF are sent to SMF is used to indicate the message for executing the operation for completing the invalid first kind PDU session.The message for being used to indicate the operation for executing the invalid first kind PDU session of completion can be N4 session and be converted to Idle state completion message (N4session-IDLE transition complete).

S922a, SMF, which are executed, is converted to Idle state for the state of the first kind PDU session.

S923a, SMF are sent to AMF is used to indicate the message for executing the operation for completing the invalid first kind PDU session.The message for being used to indicate the operation for executing the invalid first kind PDU session of completion can be by N11message ACK.

S924a, AMF, which are executed, is converted to Idle state for the state of the first kind PDU session.

It show referring to Figure 14 B and is switched based on Xn (interface between AN and AN) interface.To include the context (active PDU session info) of the second class PDU session in the AS content in switching request, for the ID (inactive PDU session IDs) for not carrying first kind PDU session in switching request.

S901b, in PDU session establishment or the activation of terminal, S-AN configures the timer of the PDU session.

It is inactive state by the state recording of the PDU session if the S-AN detects that no data is transmitting continuous to the timer expiry in the PDU session after S902b, the S-AN receive the timer of the PDU session of SMF transmission.

S903b, UE send measurement report (measurement report) to the S-AN.

S904b, the S-AN receive the measurement report (measurement report) of UE transmission, and the S-AN determines whether to execute for the UE from the S-AN according to the measurement report is switched to T-AN.

S905b, the S-AN send switching request (handover request) to the T-AN.

S906b, the T-AN send switching request receipt (handover request ACK) to the S-AN.It may include the context of the second class PDU session parsed from Ascontent by T-AN in switching request receipt.

S907b, S-AN send RRC to UE and reconfigure (RRC reconfiguration) message.

S908b, the UE send RRC to S-AN and reconfigure completion (RRC reconfiguration complete) message.

S909b-S915b is the process that the switching of core network diameter is executed for the second class PDU session.

S909b, T-AN send N2 path integration (N2path switch) message to AMF, and N2path switch carries the context of the second class PDU session.Interface of the N2 between base station and AMF.N2path switch is used to indicate AMF and path is gone to T-AN by S-AN, updates the context of the second class PDU session.

S910b, AMF send N11message (N11 message) to SMF, and N11message carries the context of the second class PDU session.Interface of the N11 between SMF and AMF.N11message is used to indicate the context that SMF updates the second class PDU session.

S911b, SMF send N4 session modification (N11session modify) to UPF, and N11path switch carries the context of the second class PDU session.Interface of the N11 between SMF and AMF.

S912b, UPF send N11session modify confirmation (ACK) to SMF.

S913b, SMF send N11session modify ACK to AMF.

S914b, AMF send N2path switch ACK to T-AN.

S915b, T-AN send UE context release message (UE content release) to S-AN.

After the N2 path integration (N2path switch) for receiving S-AN transmission, the AMF determines first kind PDU session based on the mark of the second class PDU session by S916b, the AMF described in S909b.The mark of all activated PDU session of terminal is preserved in AMF, so that AMF determines the PDU session in the PDU session of the activation of the terminal saved in addition to the corresponding second class PDU session of the mark.

S917b, the AMF send the message for being used to indicate the operation that SMF executes the invalid first kind PDU session to SMF.The message for executing the operation of the invalid first kind PDU session for SMF instruction can pass through N11message.

S918b, SMF send the message for being used to indicate the operation that UPF executes the invalid first kind PDU session to UPF.The message for being used to indicate the operation that UPF executes the invalid first kind PDU session can be N4session-IDLE transition.

The state of the first kind PDU session is converted to Idle state by S919b, UPF.Illustrate so that the state that the operation of the invalid first kind PDU session is the first kind PDU session is converted to Idle state as an example in Figure 14 B.

S920ba, the UPF are sent to SMF is used to indicate the message for executing the operation for completing the invalid first kind PDU session.

S921b, SMF, which are executed, is converted to Idle state for the state of the first kind PDU session.

S922b, SMF are sent to AMF is used to indicate the message for executing the operation for completing the invalid first kind PDU session.The message for being used to indicate the operation for executing the invalid first kind PDU session of completion can be by N11message ACK.

S923b, AMF, which are executed, is converted to Idle state for the state of the first kind PDU session.

S924b, AMF send the message for being used to indicate the operation that UE executes the invalid first kind PDU session to UE.The message for being used to indicate the operation that UE executes the invalid first kind PDU session can be N1 session and switch to Idle state request (N1session-IDLE transition request).N1session-IDLE transition request carries the mark and the first instruction of the PDU session of the mark of first kind PDU session or the activation of carried terminal.Interface of the N1 between AMF and UE.

The state of the first kind PDU session is updated to Idle state by S925b, the UE.

S926b, the UE are sent to the AMF is used to indicate the message for executing the operation for completing the invalid first kind PDU session.The message for being used to indicate the operation for executing the invalid first kind PDU session of completion can be N1session-IDLE transition response.

It show referring to Figure 14 C and is switched based on X1 (interface between AN and core net) interface.Transparent vessel (source to target transparent container) in switching request includes the context (active PDU session info) of the second class PDU session, for the ID (inactive PDU session IDs) that first kind PDU session is carried except active PDU session info and in switching request.

S901c, in PDU session establishment or the activation of terminal, S-AN configures the timer of the PDU session.

It is inactive state by the state recording of the PDU session if the S-AN detects that no data is transmitting continuous to the timer expiry in the PDU session after S902c, the S-AN receive the timer of the PDU session of SMF transmission.

S903c, UE send measurement report (measurement report) to the S-AN.

S904c, the S-AN receive the measurement report (measurement report) of UE transmission, and the S-AN determines whether to execute for the UE from the S-AN according to the measurement report is switched to T-AN.

S905c, the S-AN send switching request (handover required) to the AMF.

Transparent vessel (source to target transparent container) in the handover required includes the context (active PDU session info) of the second class PDU session, and the ID (active PDU session IDs) of the second class PDU session is carried except active PDU session info and in switching request.

The switching request (handover required), which is used to indicate, does not execute handover operation for other PDU sessions (i.e. first kind PDU session) other than the second class PDU session, that is, executes the operation of other PDU sessions other than invalid second class PDU session.Invalid first kind PDU session is that the state of the first kind PDU session is updated to Idle state or the deletion first kind PDU session

S906c, AMF send N11 switching request (N2handover required) message to SMF.

S907c, SMF send N11 switching request (N11handover request) to AMF, the context (PDU session info) of all activated PDU session of N11handover request carried terminal.

S908c, AMF send switching request (handover request) to T-AN, which carries transparent vessel (source to target transparent container).

S909c, T-AN send switching request receipt (handover request ACK) to AMF.Transparent vessel (source to target transparent container) is carried in the handover request ACK.

S910c, AMF send switching request receipt (handover request ACK) to SMF, which carries the context of PDU session.

S911c, SMF send N11 switching command (N11handover command) to AMF.

S912c, the AMF send switching command (handover command) to UE by S-AN.

S913c, the UE send switching confirmation (handover cofirm) to T-AN.

S914c, the T-AN send switching notice (handover notify) to AMF.Switching notice (handover notify) is used to indicate AMF and the PDU session of terminal is transformed into T-AN by S-AN.

S915c, the AMF determine first kind PDU session based on the mark of the second class PDU session.The mark of all activated PDU session of terminal is preserved in AMF, so that AMF determines the PDU of the activation of the terminal saved PDU session in session in addition to the corresponding second class PDU session of the mark.

Specifically, carrying the mark of the second class PDU session in the switching request (handover required) that the S-AN described in step S905c is sent to the AMF.

Optionally, the AMF determines first kind PDU session based on the mark of the second class PDU session, and the rear AMF, which is executed, to be updated to Idle state for the state of the first kind PDU session or delete the first kind PDU session.

S916c, the AMF send switching notice (handover notify) to SMF.Switching notice (handover notify) carries the mark of first kind PDU session, is used to indicate AMF for the PDU session of terminal and is transformed into T-AN by S-AN.

S917c executes PDU session modification (modify session) between the SMF and UPF.

After S918c, the AMF determine first kind PDU session based on the mark of the second class PDU session, the message for being used to indicate the operation that SMF executes the invalid first kind PDU session is sent to SMF.Indicate that the message of the operation of the invalid first kind PDU session of SMF execution can be N11message.Indicate that SMF executes the mark that first kind PDU session can be carried in the message of the operation of the first kind PDU session in vain.

S920c, the SMF send the message for being used to indicate the operation that UPF executes the invalid first kind PDU session to UPF.The message for being used to indicate the operation that UPF executes the invalid first kind PDU session can be N4session-IDLE transition.

The state of the first kind PDU session is converted to Idle state by S920c, UPF.

S921c, the UPF are sent to SMF is used to indicate the message for executing the operation for completing the invalid first kind PDU session.

S922c, SMF, which are executed, is converted to Idle state for the state of the first kind PDU session.

S923c, SMF are sent to AMF is used to indicate the message for executing the operation for completing the invalid first kind PDU session.The message for being used to indicate the operation for executing the invalid first kind PDU session of completion can be by N11message ACK.

S924c, AMF, which are executed, is converted to Idle state for the state of the first kind PDU session.

S925c, AMF send the message for being used to indicate the operation that UE executes the invalid first kind PDU session to UE.The message for being used to indicate the operation that UE executes the invalid first kind PDU session can be N1session-IDLE transition request.Interface of the N1 between AMF and UE.

The state of the first kind PDU session is updated to Idle state by S926c, the UE.

S927c, the UE are sent to the AMF is used to indicate the message for executing the operation for completing the invalid first kind PDU session.The message for being used to indicate the operation for executing the invalid first kind PDU session of completion can be N1session-IDLE transition response.

Based on inventive concept same as embodiment of the method, the embodiment of the present application also provides session management devices, and since the principle that method and device solves the problems, such as is similar, the implementation of apparatus and method can be with cross-reference, and overlaps will not be repeated.

The embodiment of the present application provides a kind of session management device, and described device is applied to the first equipment of the core network, including, referring to shown in Fig. 8 A.

Receiving module 801a, for receiving the request message of activation Packet Data Unit PDU session；

Sending module 802a, for sending the timer of the PDU session to the second equipment；

The receiving module 801a is also used to receive the first message of the operation for the invalid PDU session that second equipment is initiated；The first message is that second equipment detects that in the PDU session, no data transmits, and while continueing to the timer expiry issues.

In a kind of possible design, second equipment is the second equipment of the core network or is base station or is terminal.

In a kind of possible design, further includes:

First determining module 803a, for determining the timer of the PDU session based on the slice information of the slice of network belonging to the PDU session before the sending module 802a sends the timer to second equipment.

In a kind of possible design, the receiving module 801a is also used to receive the timer of the PDU session sent by third equipment of the core network.

In a kind of possible design, the sending module 802a is also used to send instruction information to second equipment, and the instruction information is to be used to indicate the information of the operation of the invalid PDU session.

In a kind of possible design, the receiving module 801a is also used to after receiving the request message, receives the instruction information sent by third equipment of the core network, and the instruction information is to be used to indicate the information of the operation of the invalid PDU session.

In a kind of possible design, second determining module 804a, for determining that the operation of the invalid PDU session is that the PDU session is converted to Idle state by activated state or is to delete the PDU session based on the instruction information after the receiving module 801a receives the first message.

In a kind of possible design, the operation of the invalid PDU session is that the PDU session is converted to Idle state by activated state, the receiving module 801a, it is also used to after receiving the first message, the second equipment of the core network of Xiang Suoshu sends the message for being used to indicate and deleting the corresponding information relevant to base station of the PDN session.

Processing module 805a, for setting Idle state for the state of the PDU session after the receiving module 801a receives the first message.

In a kind of possible design, the operation of the invalid PDU session is to delete the PDU session, the sending module, it is also used to after the receiving module 801a receives the first message, the transmission of the second equipment of the core network of Xiang Suoshu is used to indicate the message for deleting information relevant to the PDN session.

In a kind of possible design, the sending module 802a is also used to after the receiving module 801a receives the first message, and the message for being used to indicate base station and discharging the context of the PDU session is sent to base station.

In a kind of possible design, the sending module 802a, it is also used to after the receiving module 801a receives the first message, is sent to the 4th equipment of the core network and be used to indicate the message that the 4th equipment of the core network sets the state of the PDU session to Idle state.

In a kind of possible design, the receiving module 801a is also used to receive the second message of the 4th equipment of the core network transmission, and the second message carries the mark of the PDU session of user face to be updated context；

Described device further include:

Update module 806a, the user face context of the corresponding PDU session of mark for updating the PDU session.

It is schematical to the division of module in the embodiment of the present application, only a kind of logical function partition, there may be another division manner in actual implementation, in addition, each functional module in each embodiment of the application can integrate in a processor, it is also possible to physically exist alone, can also be integrated in two or more modules in a module.Above-mentioned integrated module both can take the form of hardware realization, can also be realized in the form of software function module.

The embodiment of the present application provides a kind of session management device, and described device is applied to the first equipment of the core network, referring to shown in Fig. 8 B, comprising:

Receiving module 801b carries the mark of PDU session to be activated for receiving the service request information of terminal transmission in the service request information；

Processing module 802b, for executing the process for activating the PDU session based on the service request information.

In a kind of possible design, described device further include:

Sending module 803b, the third state information of the corresponding QoS flow of the PDU session for being sent to the terminal, to indicate the state of the corresponding QoS flow of the terminal PDU session synchronous with first equipment of the core network；The third state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state.

As shown in Figure 8 C, the first equipment of the core network may include processor 820.The hardware of the corresponding entity of module shown in above-mentioned Fig. 8 A or 8B can be processor 820.Processor 820 can be a central processing module (English: central processing unit, abbreviation CPU), or be digital processing module etc..First equipment of the core network can also include communication interface 810, and processor 820 receives data or message by communication interface 810.The device further include: memory 830, the program executed for storage processor 820.Memory 830 can be nonvolatile memory, such as hard disk (English: hard disk drive, abbreviation: HDD) or solid state hard disk (English: solid-state drive, abbreviation: SSD) etc., it can also be volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM).Memory 830 can be used for carry or store have instruction or data structure form desired program code and can by any other medium of computer access, but not limited to this.

Processor 820 is used to execute the program code of the storage of memory 830, specifically for executing Fig. 3 to Fig. 7, method performed by the first equipment of the core network in Figure 13, Figure 14 A~Figure 14 C illustrated embodiment.It may refer to method described in Fig. 3 to Fig. 7, Figure 13, Figure 14 A~Figure 14 C illustrated embodiment, details are not described herein by the application.

The specific connection medium between above-mentioned communication interface 810, processor 820 and memory 830 is not limited in the embodiment of the present application.The embodiment of the present application is being connected in Fig. 8 C with passing through bus 840 between memory 830, processor 820 and communication interface 810, and bus is indicated in Fig. 8 C with thick line, and the connection type between other components is only to be schematically illustrated, does not regard it as and be limited.The bus can be divided into address bus, data/address bus, control bus etc..Only to be indicated with a thick line in Fig. 8 C, it is not intended that an only bus or a type of bus convenient for indicating.

The embodiment of the present application provides a kind of session management device, and described device is applied to base station, referring to shown in Fig. 9 A, wraps It includes:

Receiving module 901a, for receiving the timer for the PDU session that the first equipment of the core network is sent in Packet Data Unit PDU session activation；

Processing module 902a, for detecting, no data is transmitted in the PDU session, and continues to the timer expiry；

The sending module 903a, the first message of the operation for sending the invalid PDU session to first equipment of the core network.

In a kind of possible design, the receiving module 901a is also used to receive the instruction information that first equipment of the core network is sent in PDU session activation, and the instruction information is to be used to indicate the information of the operation of the invalid PDU session.

In a kind of possible design, the receiving module 901a is also used to receive the message for being used to indicate the base station and discharging the context of the PDU that first equipment of the core network is sent；

The processing module 902a is also used to that the corresponding radio resource of the PDU session is deleted or hung up.

In a kind of possible design, the processing module 902a is also used to:

Idle state is set by the state of the PDU session of preservation.

In a kind of possible design, the processing module 902a, it is also used to transmit monitoring in the PDU session no data, and after continueing to the timer expiry, deletes the mapping relations between the corresponding service quality QoS stream of the PDU session and radio resource carrying DRB.

In a kind of possible design, the sending module 903a, it is also used to monitor the no data in the PDU session in the processing module 902a and transmit, and after continueing to the timer expiry, Xiang Suoshu terminal sends the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session.

The embodiment of the present application also provides a kind of session management device, and described device is applied to base station, referring to shown in Fig. 9 B, comprising:

Receiving module 901b restores message for receiving the RRC connection that the terminal is sent, and the RRC connection restores to carry parameter in message；

Processing module 902b, for determining PDU session to be activated according to the parameter；And trigger the process for activating the PDU session.

In a kind of possible design, described device further include:

Sending module 903b, for sending to the first equipment of the core network for triggering the message that the PDU session is converted to activated state.

In a kind of possible design, the processing module 902b is also used to configure the mapping relations between the corresponding QoS flow of the PDU session and DRB.

In a kind of possible design, further includes:

Sending module 903b is also used to the mapping relations being sent to the terminal.

In a kind of possible design, described device further include:

Sending module 903b, for the second status information of the corresponding QoS flow of the PDU session to be sent to terminal, to indicate the state of QoS described in the terminal and base station synchronization.

In a kind of possible design, the processing module 902b is also used to determine that executing cell for terminal switches；

Sending module 903b, for sending switching request message to the 4th equipment of the core network, carry that the terminal is carried in the mark or the switching request for the PDU session that the corresponding state of the terminal is activated state is corresponding and preserve the mark of the PDU session of PDU session context in the base station in the switching request message.

The embodiment of the present application also provides a kind of session management device, and described device is applied to source base station, referring to shown in Fig. 9 D, comprising:

Receiving module 901d, for receiving the timer for the PDU session that the first equipment of the core network is sent in PDU session establishment or the activation of terminal；It is inactive state by the state recording of the PDU session if the source base station detects that no data is transmitting continuous to the timer expiry in the PDU session；

Processing module 902d, for when determining that being directed to terminal execution is switched to target BS from the source base station, determine the first kind PDU session for including in the PDU session of the activation of the terminal, the first kind PDU session is to be recorded as the PDU session of inactive state, switching flow is executed for the second class PDU session, the second class PDU session is the PDU session in the PDU session of the terminal in addition to the first kind session.

In one possible implementation, further includes:

Sending module 903d only carries the mark of the second class PDU session for sending switching request to the target BS for the second class PDU session in the processing module 902d in the switching request；Alternatively,

In one possible implementation, sending module 903d, for during executing switching for the second class PDU session, Xiang Suoshu terminal to send the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session.

Optionally, it is carried in the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session: the mark of the first kind PDU session；Alternatively,

Optionally, the operation of the invalid first kind PDU session includes: that the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.

In one possible implementation, sending module 903d in described device, for sending switching request to the 4th equipment of the core network, the mark of the second class PDU session only being carried in the switching request when the processing module 902d executes switching flow for the second class PDU session；Alternatively,

The embodiment of the present application also provides a kind of session management device, described device application target base station, referring to shown in Fig. 9 E, comprising:

Receiving module 901e receives the switching request that the source base station that terminal is currently accessed is sent, the mark of the second class PDU session is only carried in the switching request；Alternatively, carrying the mark of the first kind PDU session and the mark of the second class PDU session in the switching request；Alternatively, the mark and the first instruction of the PDU session of the activation of the terminal are carried in the switching request, the first kind PDU session in the mark of PDU session of first instruction for marking the activation of the terminal；

Sending module 902e, for sending the message for being used to indicate the operation that the 4th equipment of the core network executes the invalid first kind PDU session to the 4th equipment of the core network.

Wherein, it is carried in the message for being used to indicate the operation that the 4th equipment of the core network executes the invalid second class PDU session: the mark of the first kind PDU session.Wherein, the operation of the invalid first kind PDU session includes: that the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.

As shown in Figure 9 C, base station (base station can be source base station or can be target BS) may include processor 920.The hardware of the corresponding entity of module shown in above-mentioned Fig. 9 A or 9B or 9D or 9E can be processor 920.Processor 920, it can be a central processing module (English: central processing unit, abbreviation CPU), or be digital processing module etc..Base station can also include transceiver 910, and processor 920 receives data, message by transceiver 910.The device further include: memory 930, the program executed for storage processor 920.Memory 930 can be nonvolatile memory, such as hard disk (English: hard disk drive, abbreviation: HDD) or solid state hard disk (English: solid-state drive, abbreviation: SSD) etc., it can also be volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM).Memory 930 can be used for carry or store have instruction or data structure form desired program code and can by any other medium of computer access, but not limited to this.

Processor 920 is used to execute the program code of the storage of memory 930, specifically for executing Fig. 3 to Fig. 7, method performed by base station in Figure 13, Figure 14 A~Figure 14 C illustrated embodiment.It may refer to method described in Fig. 3 to Fig. 7, Figure 13, Figure 14 A~Figure 14 C illustrated embodiment, details are not described herein by the application.

The specific connection medium between above-mentioned transceiver 910, processor 920 and memory 930 is not limited in the embodiment of the present application.The embodiment of the present application is being connected in Fig. 9 C with passing through bus 940 between memory 930, processor 920 and transceiver 910, and bus is indicated in Fig. 9 C with thick line, and the connection type between other components is only to be schematically illustrated, does not regard it as and be limited.The bus can be divided into address bus, data/address bus, control bus etc..Only to be indicated with a thick line in Fig. 9 C, it is not intended that an only bus or a type of bus convenient for indicating.

The embodiment of the present application provides a kind of session management device, and described device is applied to terminal, and referring to shown in Figure 10 A, described device includes:

Receiving module 1001a, for receiving the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session of base station transmission；

Processing module 1002a is set as Idle state for deleting or hanging up the corresponding radio resource of the PDU session, and by the state of the PDU session.

In a kind of possible design, the processing module 1002a, it is also used to after the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session that the receiving module 1001a receives that the base station is sent, when judging that the corresponding whole radio resources of the PDU session are deleted or hang up, Idle state is set by the state of the PDU session.

In a kind of possible design, the receiving module 1001a, it is also used to before receiving the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session that base station is sent, in the PDU session activation, the timer for the PDU session that the first equipment of the core network is sent is received；

Described device further include:

Sending module 1003a is also used to monitor in the PDU session no data in the processing module 1002a and transmit, and when continueing to the timer expiry, the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.

In a kind of possible design, the receiving module 1001a, it is also used in the PDU session activation, receives the first instruction information that first equipment of the core network is sent, the first instruction information is to be used to indicate the information of the operation of the invalid PDU session.

It is schematically that only a kind of logical function partition, there may be another division manner in actual implementation, in addition, each functional module in each embodiment of the application can integrate in a processor to the division of module in the embodiment of the present application In, it is also possible to physically exist alone, can also be integrated in two or more modules in a module.Above-mentioned integrated module both can take the form of hardware realization, can also be realized in the form of software function module.

The embodiment of the present application provides a kind of session management device, and described device is applied to terminal, and referring to shown in Figure 10 B, described device includes:

Receiving module 1003b, for receiving upstream data or receiving paging request；

Processing module 1001b, for determining that receiving module receives upstream data or receives paging request；

Sending module 1002b, for sending request message to the network equipment, the mark of PDU session is carried in the request message, and/or carry the first state information of the corresponding QoS flow of PDU session, the first state information indicates that the state of the QoS flow on the terminal is activated state or inactive state, the state for the network equipment QoS flow synchronous with the terminal.

In a kind of possible design, the receiving module 1003a, it is also used to receive the second status information of the corresponding QoS flow of the PDU session that the base station is sent, second status information indicates that state of the QoS flow on the base station is activated state or inactive state；

The processing module 1001b is also used to the state based on second status information QoS flow corresponding with PDU session described in the base station synchronization.

In a kind of possible design, the receiving module 1003a is also used to receive the mapping relations of the PDU session corresponding QoS flow and DRB that the base station is sent；

The processing module 1001b, is also used to save the mapping relations.

In a kind of possible design, the receiving module 1003a, it is also used to receive the third state information of the corresponding QoS flow of the PDU session sent by first equipment of the core network, the third state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state；

The processing module 1001b is also used to the state based on the corresponding QoS flow of the third flow state information PDU session synchronous with first equipment of the core network.

The embodiment of the present application provides a kind of session management device, and described device is applied to terminal, and referring to shown in Figure 10 D, described device includes:

Receiving module 1001d is used to indicate the message for executing the operation of invalid first kind Packet Data Unit PDU session for during terminal is switched to target BS from the source base station being currently accessed, receive that the source base station or the 4th equipment of the core network send；

Processing module 1002d, for executing the operation of the invalid first kind PDU session based on the message.

As illustrated in figure 10 c, terminal may include processor 1020.The hardware of the corresponding entity of module shown in above-mentioned Figure 10 A or 10B or 10D can be processor 1020.Processor 1020 can be a central processing module (English: central processing unit, abbreviation CPU), or be digital processing module etc..Terminal can also include transceiver 1010, and processor 1020 receives data, message by transceiver 1010.The device further include: memory 1030, the program executed for storage processor 1020.Memory 1030 can be nonvolatile memory, such as hard disk (English: hard disk drive, abbreviation: HDD) or solid state hard disk (English: solid-state drive, abbreviation: SSD) etc., it can also be volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM).Memory 1030 can be used for carry or store have instruction or data structure form desired program code and can by any other medium of computer access, but not limited to this.

Processor 1020 is used to execute the program code of the storage of memory 1030, specifically for executing Fig. 3 method performed by terminal into Fig. 7, Figure 13, Figure 13 A to Figure 13 C illustrated embodiment.It may refer to method described in Fig. 3 to Fig. 7, Figure 13, Figure 14 A to Figure 14 C illustrated embodiment, details are not described herein by the application.

The specific connection medium between above-mentioned transceiver 1010, processor 1020 and memory 1030 is not limited in the embodiment of the present application.The embodiment of the present application is connected in fig 1 oc with passing through bus 1040 between memory 1030, processor 1020 and transceiver 1010, and bus is indicated in fig 1 oc with thick line, and the connection type between other components is only to be schematically illustrated, does not regard it as and be limited.The bus can be divided into address bus, data/address bus, control bus etc..Only to be indicated with a thick line in Figure 10 C, it is not intended that an only bus or a type of bus convenient for indicating.

The embodiment of the present application provides a kind of session management device, and described device is applied to the second equipment of the core network, referring to shown in Figure 11 A, comprising:

Receiving module 1101, for receiving the message of the first equipment of the core network transmission, the message carries the mark of PDU session to be deleted, is used to indicate second equipment of the core network and deletes the corresponding information relevant to base station of the corresponding PDU session of the mark or delete information relevant with the PDU session；

Processing module 1102, for deleting the corresponding information relevant to base station of the PDU session or deleting information relevant with the PDU session.

In a kind of possible design, the receiving module 1101 is also used in the PDU session activation, receives the timer for the PDU session that the first equipment of the core network is sent；

Described device further include:

Sending module 1103 transmits for monitoring the no data in the PDU session in the processing module 1102, and continues to the timer expiry, and the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.

In a kind of possible design, the receiving module 1101 is also used to receive the instruction information that first equipment of the core network is sent in PDU session activation, and the instruction information is the information of the operation of the instruction invalid PDU session.

As shown in Figure 11 B, the second equipment of the core network may include processor 1120.The hardware of the corresponding entity of module shown in above-mentioned Figure 11 A can be processor 1120.Processor 1120 can be a central processing module (English: central processing unit, abbreviation CPU), or be digital processing module etc..Second equipment of the core network can also include communication interface 1110, and processor 1120 receives data, message by communication interface 1110.The device further include: memory 1130, the program executed for storage processor 1120.Memory 1130 can be nonvolatile memory, such as hard disk (English: hard disk drive, abbreviation: HDD) or solid state hard disk (English: solid-state drive, abbreviation: SSD) etc., it can also be volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM).Memory 1130 can be used for carry or store have instruction or data structure form desired program code and can by any other medium of computer access, but not limited to this.

Processor 1120 is used to execute the program code of the storage of memory 1130, specifically for executing Fig. 3 method performed by the second equipment of the core network into Fig. 7, Figure 13, Figure 13 A to Figure 13 C illustrated embodiment.It may refer to method described in Fig. 3 to Fig. 7, Figure 13, Figure 13 A to Figure 13 C illustrated embodiment, details are not described herein by the application.

The specific connection medium between above-mentioned communication interface 1110, processor 1120 and memory 1130 is not limited in the embodiment of the present application.The embodiment of the present application is being connected in Figure 11 B with passing through bus 1140 between memory 1130, processor 1120 and communication interface 1110, bus is indicated in Figure 11 B with thick line, connection type between other components is only to be schematically illustrated, does not regard it as and be limited.The bus can be divided into address bus, data/address bus, control bus etc..Only to be indicated with a thick line in Figure 11 B, it is not intended that an only bus or a type of bus convenient for indicating.

The embodiment of the present application provides a kind of session management device, and described device is applied to the 4th equipment of the core network, and referring to shown in Figure 12 A, which includes:

Receiving module 1201, for receiving the mark for the PDU session that base station is sent in cell switch process；

Processing module 1202 determines the PDU session for needing to update user face context for the mark based on the PDU session；

Sending module 1203, for sending to the first equipment of the core network for notifying first equipment of the core network to update the message of the user face context of the PDU session.

In a kind of possible design, the receiving module 1201 is also used to:

The transmission of the first equipment of the core network is received, and is used to indicate the 4th equipment of the core network for the PDU session State is set as Idle state or deletes the message of the PDU session；

The processing module 1202 is also used to set the state of the PDU session saved to Idle state, or deletes the status information of the PDU session.

The embodiment of the present application provides a kind of session management device, and described device is applied to the 4th equipment of the core network, referring to shown in 12C, including

Receiving module 1201c, for during terminal is switched to target BS from source base station, receiving the mark for the second class PDU session that source base station or target BS are sent；

Sending module 1202c, for sending to the first equipment of the core network for notifying first equipment of the core network to update the message of the context of the second class PDU session.

In a kind of possible design, the receiving module 1201c, specifically for receiving the path integration message of the target BS transmission, the path integration message carries the mark of the second class PDU session.

In a kind of possible design, the receiving module 1201c carries the mark of the second class PDU session specifically for receiving the switching request of the source base station transmission in the switching request.

In a kind of possible design, described device further include:

Processing module 1203c, for determining that first kind PDU session, the first kind PDU session are the PDU session in the PDU session of the activation for the terminal that the 4th equipment of the core network saves in addition to the corresponding second class PDU session of the mark based on the mark of the second class PDU session；

In a kind of possible design, processing module 1203c is also used to after determining first kind PDU session based on the mark of the first kind PDU session, and the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.

In a kind of possible design, the receiving module 1201c is also used to receive the mark for the third class PDU session that the source base station or target BS are sent, and the third class PDU session is the PDU session for being recorded as inactive state；

The sending module 1202c, for sending the message for being used to indicate the operation for executing the invalid third class PDU session to first equipment of the core network.

In a kind of possible design, described device further include:

Processing module 1203c, for the state of the third class PDU session to be converted to Idle state by activated state after the mark that the receiving module 1201c receives the source base station third class PDU session that perhaps target BS is sent or deletes the third class PDU session.

In a kind of possible design, the sending module 1202c, it is also used to: after the mark that the receiving module 1201c receives the third class PDU session that the source base station or target BS are sent, the mark of the third class PDU session is sent to the terminal, the terminal is used to indicate by the state of the third class PDU session and is set as Idle state.

As shown in Figure 12 B, the 4th equipment of the core network may include processor 1220.The hardware of the corresponding entity of module shown in above-mentioned Figure 12 A or Figure 12 C can be processor 1220.Processor 1220 can be a central processing module (English: central processing unit, abbreviation CPU), or be digital processing module etc..4th equipment of the core network can also include communication interface 1210, and processor 1220 receives data, message by communication interface 1210.The device further include: memory 1230, the program executed for storage processor 1220.Memory 1230 can be nonvolatile memory, such as hard disk (English: hard disk drive, abbreviation: HDD) or solid state hard disk (English: solid-state drive, abbreviation: SSD) etc., it can also be volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM).Memory 1230 can be used for carry or store have instruction or data structure form desired program code and can by any other medium of computer access, but not limited to this.

Processor 1220 is used to execute the program code of the storage of memory 1230, specifically for executing Fig. 3 method performed by the 4th equipment of the core network into Fig. 7, Figure 13, Figure 14 A to Figure 14 C illustrated embodiment.It may refer to method described in Fig. 3 to Fig. 7, Figure 13, Figure 14 A to Figure 14 C illustrated embodiment, details are not described herein by the application.

The specific connection medium between above-mentioned communication interface 1210, processor 1220 and memory 1230 is not limited in the embodiment of the present application.The embodiment of the present application is being connected in Figure 12 B with passing through bus 1240 between memory 1230, processor 1220 and communication interface 1210, bus is indicated in Figure 12 B with thick line, connection type between other components is only to be schematically illustrated, does not regard it as and be limited.The bus can be divided into address bus, data/address bus, control bus etc..Only to be indicated with a thick line in Figure 12 B, it is not intended that an only bus or a type of bus convenient for indicating.

It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program product.Therefore, the form of complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application.Moreover, the form for the computer program product implemented in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) that one or more wherein includes computer usable program code can be used in the application.

The application is that reference is described according to the flowchart and/or the block diagram of the method for the embodiment of the present application, equipment (system) and computer program product.It should be understood that the combination of process and/or box in each flow and/or block and flowchart and/or the block diagram that can be realized by computer program instructions in flowchart and/or the block diagram.These computer program instructions be can provide to the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to generate a machine, so that generating by the instruction that computer or the processor of other programmable data processing devices execute for realizing the device for the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, to be able to guide in computer or other programmable data processing devices computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates the manufacture including command device, which realizes the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that in computer Or series of operation steps are executed on other programmable devices to generate computer implemented processing, thus the step of instruction executed on a computer or other programmable device is provided for realizing the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram.

Although the preferred embodiment of the application has been described, once a person skilled in the art knows basic creative concepts, then additional changes and modifications can be made to these embodiments.So it includes preferred embodiment and all change and modification for falling into the application range that the following claims are intended to be interpreted as.

Obviously, those skilled in the art can carry out various modification and variations without departing from the spirit and scope of the embodiment of the present application to the embodiment of the present application.If then the application is also intended to include these modifications and variations in this way, these modifications and variations of the embodiment of the present application belong within the scope of the claim of this application and its equivalent technologies.

Claims

A kind of conversation managing method characterized by comprising

First equipment receives the request message of activation Packet Data Unit PDU session；

First equipment sends the timer of the PDU session to the second equipment；

First equipment receives the first message of the operation for the invalid PDU session that second equipment is initiated；The first message is that second equipment detects that in the PDU session, no data transmits, and while continueing to the timer expiry issues.
The method as described in claim 1, which is characterized in that first equipment is the first equipment of the core network, and second equipment is the second equipment of the core network or is base station or is terminal.
It is method according to claim 1 or 2, which is characterized in that the operation of the invalid PDU session includes: that the PDU session is converted to Idle state by activated state or deletes the PDU session.
Method as described in any one of claims 1 to 3, which is characterized in that before first equipment sends the timer to second equipment, the method also includes:

The slice information that first equipment is sliced based on network belonging to the PDU session determines the timer of the PDU session；Alternatively,

First equipment receives the timer of the PDU session sent by third equipment of the core network.
Such as the described in any item methods of Claims 1-4, which is characterized in that the method also includes:

First equipment sends instruction information to second equipment, and the instruction information is to be used to indicate the information of the operation of the invalid PDU session.
Such as method described in any one of claim 1 to 5, which is characterized in that the method also includes:

After first equipment receives the request message, the instruction information sent by third equipment of the core network is received, the instruction information is to be used to indicate the information of the operation of the invalid PDU session.
Method as claimed in claim 6, which is characterized in that the method also includes:

After first equipment receives the first message, determine that the operation of the invalid PDU session is that the PDU session is converted to Idle state by activated state or is to delete the PDU session based on the instruction information.
Method as described in any one of claim 1 to 7, which is characterized in that the mark of the PDU session is carried in the first message.
Method according to claim 8, which is characterized in that the first message also carries cause value, and the cause value is used to indicate the timer expiry of the PDU session.
Method as described in any one of claim 1 to 9, which is characterized in that the operation of the invalid PDU session is that the PDU session is converted to Idle state by activated state, the method also includes:

After first equipment receives the first message, the second equipment of the core network of Xiang Suoshu sends the message for being used to indicate and deleting the corresponding information relevant to base station of the PDN session.
Method as described in any one of claim 1 to 10, which is characterized in that the operation of the invalid PDU session is that the PDU session is converted to Idle state by activated state, the method also includes:

After first equipment receives the first message, Idle state is set by the state of the PDU session.
Method as described in any one of claim 1 to 9, which is characterized in that the operation of the invalid PDU session is to delete the PDU session, the method also includes:

After first equipment receives the first message, the transmission of the second equipment of the core network of Xiang Suoshu is used to indicate the message for deleting information relevant to the PDN session.
Such as claim 1 to 9,12 described in any item methods, which is characterized in that the operation of the invalid PDU session is to delete the PDU session, the method also includes:

After first equipment receives the first message, the message for being used to indicate terminal deletion information relevant to the PDN session is sent to terminal.
Such as the described in any item methods of claim 1 to 13, which is characterized in that the method also includes:

After first equipment receives the first message, the message for being used to indicate base station and discharging the context of the PDU session is sent to base station.
Such as the described in any item methods of claim 1 to 14, which is characterized in that the method also includes:

After first equipment receives the first message, is sent to the 4th equipment of the core network and be used to indicate the message that the 4th equipment of the core network sets the state of the PDU session to Idle state.
Such as the described in any item methods of claim 1 to 15, which is characterized in that the method also includes:

First equipment receives the second message of the 4th equipment of the core network transmission, and the second message carries the mark of the PDU session of user face to be updated context；

First equipment updates the user face context of the corresponding PDU session of mark of the PDU session.
A kind of conversation managing method characterized by comprising

In Packet Data Unit PDU session activation, base station receives the timer for the PDU session that the first equipment of the core network is sent；

The base station detects that in the PDU session, no data transmits, and when continueing to the timer expiry, the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.
Method as claimed in claim 17, which is characterized in that the operation of the invalid PDU session includes: that the state of the PDU session is converted to Idle state by activated state or deletes the PDU session.
Method as described in claim 17 or 18, which is characterized in that the method also includes:

In PDU session activation, the base station receives the instruction information that first equipment of the core network is sent, and the instruction information is to be used to indicate the information of the operation of the invalid PDU session.
Such as the described in any item methods of claim 17 to 19, which is characterized in that the first message carries the mark of the PDU session.
Method as claimed in claim 20, which is characterized in that cause value is also carried in the first message, the cause value is used to indicate the timer expiry of the PDU session.
Such as the described in any item methods of claim 17 to 21, which is characterized in that the method also includes:

The base station receives the message for being used to indicate the base station and discharging the context of the PDU that first equipment of the core network is sent；

The base station is deleted or hung up by the corresponding radio resource of the PDU session.
Method as claimed in claim 22, which is characterized in that the method also includes:

The state of the PDU session of preservation is set Idle state by the base station.
Such as the described in any item methods of claim 17 to 23, which is characterized in that the method also includes:

The base station is transmitted monitoring in the PDU session no data, and after continueing to the timer expiry, deletes the mapping relations between the corresponding service quality QoS stream of the PDU session and radio resource carrying DRB.
Such as the described in any item methods of claim 17 to 24, which is characterized in that the method also includes:

The base station is transmitted monitoring in the PDU session no data, and after continueing to the timer expiry, Xiang Suoshu terminal sends the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session.
Method as claimed in claim 25, which is characterized in that carry in the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session: radio resource that is to be deleted or hanging up carries the mark of DRB.
A kind of conversation managing method characterized by comprising

Terminal receives the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session that base station is sent；

The terminal deletion hangs up the corresponding radio resource of the PDU session, and sets Idle state for the state of the PDU session.
Method as claimed in claim 27, which is characterized in that the method also includes:

After the terminal receives the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session that the base station is sent, when judging that the corresponding whole radio resources of the PDU session are deleted or hang up, Idle state is set by the state of the PDU session.
Method as described in claim 27 or 28, which is characterized in that before the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session that the terminal receives that base station is sent, the method also includes:

In the PDU session activation, terminal receives the timer for the PDU session that the first equipment of the core network is sent；

The terminal monitoring in the PDU session no data transmit, and when continueing to the timer expiry, the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.
Method as claimed in claim 29, which is characterized in that the operation of the invalid PDU session includes: that the state of the PDU session is converted to Idle state by activated state or deletes the PDU session.
Method as described in claim 29 or 30, which is characterized in that the method also includes:

In the PDU session activation, the terminal receives the first instruction information that first equipment of the core network is sent, and the first instruction information is to be used to indicate the information of the operation of the invalid PDU session.
A kind of conversation managing method characterized by comprising

Second equipment of the core network receives the message of the first equipment of the core network transmission, the message carries the mark of PDU session to be deleted, is used to indicate second equipment of the core network and deletes the corresponding information relevant to base station of the corresponding PDU session of the mark or delete information relevant with the PDU session；

Second equipment of the core network deletes the corresponding information relevant to base station of the PDU session or deletes information relevant with the PDU session.
Method as claimed in claim 32, which is characterized in that the method also includes:

In the PDU session activation, the second equipment of the core network receives the timer for the PDU session that the first equipment of the core network is sent；

Second equipment of the core network monitors the no data in the PDU session and transmits, and continues to the timer expiry, and the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.
Method as claimed in claim 33, which is characterized in that the operation of the invalid PDU session includes: that the state of the PDU session is converted to Idle state by activated state or deletes the PDU session.
Method as described in claim 33 or 34, which is characterized in that the method also includes:

In PDU session activation, second equipment of the core network receives the instruction information that first equipment of the core network is sent, and the instruction information is the information of the operation of the instruction invalid PDU session.
A kind of conversation managing method characterized by comprising

In cell switch process, the 4th equipment of the core network receives the mark for the PDU session that base station is sent；

4th equipment of the core network determines the PDU meeting for needing to update user face context based on the mark of the PDU session Words；

4th equipment of the core network is sent to the first equipment of the core network for notifying first equipment of the core network to update the message of the user face context of the PDU session.
Method as claimed in claim 36, which is characterized in that the method also includes:

4th equipment of the core network receives the transmission of the first equipment of the core network, and is used to indicate the 4th equipment of the core network and sets Idle state for the state of the PDU session or delete the message of the PDU session；

The state of the PDU session of preservation is set Idle state by 4th equipment of the core network, or deletes the status information of the PDU session.
A kind of conversation managing method characterized by comprising

Terminal, which determines, has upstream data to reach or receive paging request；

The terminal sends request message to the network equipment, the mark of PDU session is carried in the request message, and/or carry the first state information of the corresponding QoS flow of PDU session, the first state information indicates that the state of the QoS flow on the terminal is activated state or inactive state, the state for the network equipment QoS flow synchronous with the terminal.
Method as claimed in claim 38, which is characterized in that the radio resource control RRC state of the terminal is the inactive connection status of RRC, and the network equipment is base station, and the request message is used to indicate the RRC connection for restoring the terminal.
Method as claimed in claim 39, which is characterized in that the method also includes:

The terminal receives the second status information of the corresponding QoS flow of the PDU session that the base station is sent, and second status information indicates that state of the QoS flow on the base station is activated state or inactive state；

State of the terminal based on second status information QoS flow corresponding with PDU session described in the base station synchronization.
Method as described in claim 39 or 40, which is characterized in that the method also includes:

The terminal receives the mapping relations of the PDU session corresponding QoS flow and DRB that the base station is sent；

The terminal saves the mapping relations.
Method as claimed in claim 38, which is characterized in that the connection management CM state of the terminal is idle state, and the network equipment is the 4th equipment of the core network, and the request message, which is used to indicate, is converted to CM connection status from CM idle state for the terminal.
Method as claimed in claim 42, which is characterized in that the method also includes:

The terminal receives the third state information of the corresponding QoS flow of the PDU session sent by first equipment of the core network, and the third state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state；

State of the terminal based on the corresponding QoS flow of the third flow state information PDU session synchronous with first equipment of the core network.
A kind of conversation managing method characterized by comprising

Base station receives the RRC connection that the terminal is sent and restores message, and the RRC connection restores to carry parameter in message；

The base station determines PDU session to be activated according to the parameter；

The process of PDU session described in the base station trigger activation.
Method as claimed in claim 44, which is characterized in that the parameter is the mark of the PDU session to be activated or the mark of the corresponding radio resource carrying DRB of the PDU session to be activated.
Method as described in claim 44 or 45, which is characterized in that the state of the PDU session to be activated For Idle state.
Such as the described in any item methods of claim 44 to 46, which is characterized in that the RRC connection restores the first state information for also carrying the corresponding service quality QoS stream of the PDU session in message；The status information is used for the state of the base station QoS flow synchronous with the terminal.
Such as the described in any item methods of claim 44 to 47, which is characterized in that the base station triggers execute the process for activating the PDU session, comprising:

The base station is sent to the first equipment of the core network for triggering the message that the PDU session is converted to activated state.
Such as the described in any item methods of claim 44 to 48, which is characterized in that the method also includes:

The base station configures the mapping relations between the corresponding QoS flow of the PDU session and DRB.
Method as claimed in claim 49, which is characterized in that the method also includes:

The mapping relations are sent to the terminal by the base station.
Such as the described in any item methods of claim 44 to 50, which is characterized in that the method also includes:

Second status information of the corresponding QoS flow of the PDU session is sent to terminal by the base station, to indicate the state of QoS described in the terminal and base station synchronization.
Such as the described in any item methods of claim 44 to 51, which is characterized in that the method also includes:

Base station, which is determined, executes cell switching for terminal；

The base station sends switching request message to the 4th equipment of the core network, carries that the terminal is carried in the mark or the switching request for the PDU session that the corresponding state of the terminal is activated state is corresponding and preserve the mark of the PDU session of PDU session context in the base station in the switching request message.
A kind of conversation managing method characterized by comprising

First equipment of the core network receives the service request information that terminal is sent, and the mark of PDU session to be activated is carried in the service request information；

First equipment of the core network executes the process for activating the PDU session based on the service request information.
Method as claimed in claim 53, which is characterized in that the first state information of the corresponding service quality QoS stream of the PDU session is carried in the service request information；The first state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state, the state for first equipment of the core network QoS flow synchronous with the terminal.
Method as described in claim 53 or 54, which is characterized in that the method also includes:

The third state information for the corresponding QoS flow of the PDU session that first equipment of the core network is sent to the terminal, to indicate the state of the corresponding QoS flow of the terminal PDU session synchronous with first equipment of the core network；The third state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state.
A kind of session management device, which is characterized in that described device is applied to the first equipment, comprising:

Receiving module, for receiving the request message of activation Packet Data Unit PDU session；

Sending module, for sending the timer of the PDU session to the second equipment；

The receiving module is also used to receive the first message of the operation for the invalid PDU session that second equipment is initiated；The first message is that second equipment detects that in the PDU session, no data transmits, and while continueing to the timer expiry issues.
Device as claimed in claim 56, which is characterized in that first equipment is the first equipment of the core network, and second equipment is the second equipment of the core network or is base station or is terminal.
Device as described in claim 56 or 57, which is characterized in that the operation of the invalid PDU session includes: that the PDU session is converted to Idle state by activated state or deletes the PDU session.
Such as the described in any item devices of claim 56 to 58, which is characterized in that further include:

First determining module, for determining the timer of the PDU session based on the slice information of the slice of network belonging to the PDU session before the sending module sends the timer to second equipment.
Such as the described in any item devices of claim 56 to 59, which is characterized in that the receiving module is also used to receive the timer of the PDU session sent by third equipment of the core network.
Such as the described in any item devices of claim 56 to 60, which is characterized in that the sending module is also used to send instruction information to second equipment, and the instruction information is to be used to indicate the information of the operation of the invalid PDU session.
Such as the described in any item devices of claim 56 to 61, it is characterized in that, the receiving module, is also used to after receiving the request message, the instruction information sent by third equipment of the core network is received, the instruction information is to be used to indicate the information of the operation of the invalid PDU session.
Device as claimed in claim 62, it is characterized in that, further include: the second determining module, for determining that the operation of the invalid PDU session is that the PDU session is converted to Idle state by activated state or is to delete the PDU session based on the instruction information after the receiving module receives the first message.
Such as the described in any item devices of claim 56 to 63, which is characterized in that carry the mark of the PDU session in the first message.
Device as described in claim 64, which is characterized in that the first message also carries cause value, and the cause value is used to indicate the timer expiry of the PDU session.
Such as the described in any item devices of claim 56 to 65, it is characterized in that, the operation of the invalid PDU session is that the PDU session is converted to Idle state by activated state, the receiving module, it is also used to after receiving the first message, the second equipment of the core network of Xiang Suoshu sends the message for being used to indicate and deleting the corresponding information relevant to base station of the PDN session.
Such as the described in any item devices of claim 56 to 66, which is characterized in that the operation of the invalid PDU session is that the PDU session is converted to Idle state, described device by activated state further include:

Processing module, for setting Idle state for the state of the PDU session after receiving the first message.
Such as the described in any item devices of claim 56 to 65, it is characterized in that, the operation of the invalid PDU session is to delete the PDU session, the sending module, it is also used to after the receiving module receives the first message, the transmission of the second equipment of the core network of Xiang Suoshu is used to indicate the message for deleting information relevant to the PDN session.
Such as claim 56 to 64,67 described in any item devices, it is characterized in that, the operation of the invalid PDU session is to delete the PDU session, the sending module, it is also used to after receiving the first message, the message for being used to indicate terminal deletion information relevant to the PDN session is sent to terminal.
Such as the described in any item devices of claim 56 to 69, which is characterized in that the sending module is also used to after the receiving module receives the first message, and the message for being used to indicate base station and discharging the context of the PDU session is sent to base station.
Such as the described in any item devices of claim 56 to 70, it is characterized in that, the sending module, it is also used to after the receiving module receives the first message, is sent to the 4th equipment of the core network and be used to indicate the message that the 4th equipment of the core network sets the state of the PDU session to Idle state.
Such as the described in any item devices of claim 56 to 71, which is characterized in that the receiving module is also used to connect The second message of the 4th equipment of the core network transmission is received, the second message carries the mark of the PDU session of user face to be updated context；

Described device further include:

Update module, the user face context of the corresponding PDU session of mark for updating the PDU session.
A kind of session management device, which is characterized in that described device is applied to base station, comprising:

Receiving module, for receiving the timer for the PDU session that the first equipment of the core network is sent in Packet Data Unit PDU session activation；

Processing module, for detecting, no data is transmitted in the PDU session, and continues to the timer expiry；

The sending module, the first message of the operation for sending the invalid PDU session to first equipment of the core network.
Device as described in claim 73, which is characterized in that the operation of the invalid PDU session includes: that the state of the PDU session is converted to Idle state by activated state or deletes the PDU session.
Device as described in claim 73 or 74, it is characterized in that, the receiving module, is also used in PDU session activation, the instruction information that first equipment of the core network is sent is received, the instruction information is to be used to indicate the information of the operation of the invalid PDU session.
Such as the described in any item devices of claim 73 to 75, which is characterized in that the first message carries the mark of the PDU session.
Device as described in claim 76, which is characterized in that cause value is also carried in the first message, the cause value is used to indicate the timer expiry of the PDU session.
Such as the described in any item devices of claim 73 to 77, which is characterized in that the receiving module is also used to receive the message for being used to indicate the base station and discharging the context of the PDU that first equipment of the core network is sent；

The processing module is also used to that the corresponding radio resource of the PDU session is deleted or hung up.
Device as described in claim 78, which is characterized in that the processing module is also used to:

Idle state is set by the state of the PDU session of preservation.
Such as the described in any item devices of claim 73 to 79, it is characterized in that, the processing module, it is also used to monitoring the no data transmission in the PDU session, and after continueing to the timer expiry, the mapping relations between the corresponding service quality QoS stream of the PDU session and radio resource carrying DRB are deleted.
Such as the described in any item devices of claim 73 to 80, it is characterized in that, the sending module, it is also used to monitor the no data in the PDU session in the processing module and transmit, and after continueing to the timer expiry, Xiang Suoshu terminal sends the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session.
Device as described in claim 81, which is characterized in that carry in the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session: radio resource that is to be deleted or hanging up carries the mark of DRB.
A kind of session management device, which is characterized in that described device is applied to terminal, comprising:

Receiving module, for receiving the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session of base station transmission；

Processing module is set as Idle state for deleting or hanging up the corresponding radio resource of the PDU session, and by the state of the PDU session.
Device as described in claim 83, it is characterized in that, the processing module, it is also used to after the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session that the receiving module receives that the base station is sent, when judging that the corresponding whole radio resources of the PDU session are deleted or hang up, by the shape of the PDU session State is set as Idle state.
Device as described in claim 83 or 84, it is characterized in that, the receiving module, it is also used to before receiving the message for being used to indicate the terminal deletion or hanging up the corresponding radio resource of PDU session that base station is sent, in the PDU session activation, the timer for the PDU session that the first equipment of the core network is sent is received；

Described device further include:

Sending module is also used to monitor in the PDU session no data in the processing module and transmit, and when continueing to the timer expiry, the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.
Device as described in claim 85, which is characterized in that the operation of the invalid PDU session includes: that the state of the PDU session is converted to Idle state by activated state or deletes the PDU session.
Device as described in claim 85 or 86, it is characterized in that, the receiving module, is also used in the PDU session activation, the first instruction information that first equipment of the core network is sent is received, the first instruction information is to be used to indicate the information of the operation of the invalid PDU session.
A kind of session management device, which is characterized in that described device is applied to the second equipment of the core network, comprising:

Receiving module, for receiving the message of the first equipment of the core network transmission, the message carries the mark of PDU session to be deleted, is used to indicate second equipment of the core network and deletes the corresponding information relevant to base station of the corresponding PDU session of the mark or delete information relevant with the PDU session；

Processing module, for deleting the corresponding information relevant to base station of the PDU session or deleting information relevant with the PDU session.
Device as described in claim 88, which is characterized in that the receiving module is also used in the PDU session activation, receives the timer for the PDU session that the first equipment of the core network is sent；

Described device further include:

Sending module transmits for monitoring the no data in the PDU session in the processing module, and continues to the timer expiry, and the first equipment of the core network of Xiang Suoshu sends the first message of the operation of the invalid PDU session.
Device as described in claim 89, which is characterized in that the operation of the invalid PDU session includes: that the state of the PDU session is converted to Idle state by activated state or deletes the PDU session.
Device as described in claim 89 or 90, it is characterized in that, the receiving module, is also used in PDU session activation, the instruction information that first equipment of the core network is sent is received, the instruction information is the information of the operation of the instruction invalid PDU session.
A kind of session management device, which is characterized in that described device is applied to the 4th equipment of the core network, comprising:

Receiving module, for receiving the mark for the PDU session that base station is sent in cell switch process；

Processing module determines the PDU session for needing to update user face context for the mark based on the PDU session；

Sending module, for sending to the first equipment of the core network for notifying first equipment of the core network to update the message of the user face context of the PDU session.
Device as described in claim 92, which is characterized in that the receiving module is also used to:

The transmission of the first equipment of the core network is received, and is used to indicate the 4th equipment of the core network and sets Idle state for the state of the PDU session or delete the message of the PDU session；

The processing module is also used to set the state of the PDU session saved to Idle state, or deletes the status information of the PDU session.
A kind of session management device, which is characterized in that described device is applied to terminal, comprising:

Receiving module, for receiving upstream data or receiving paging request；

Processing module reaches or receives paging request for determining that receiving module receives upstream data；

Sending module, for sending request message to the network equipment, the mark of PDU session is carried in the request message, and/or carry the first state information of the corresponding QoS flow of PDU session, the first state information indicates that the state of the QoS flow on the terminal is activated state or inactive state, the state for the network equipment QoS flow synchronous with the terminal.
Device as described in claim 94, which is characterized in that the radio resource control RRC state of the terminal is the inactive connection status of RRC, and the network equipment is base station, and the request message is used to indicate the RRC connection for restoring the terminal.
Device as described in claim 95, it is characterized in that, the receiving module, is also used to receive the second status information of the corresponding QoS flow of the PDU session that the base station is sent, and second status information indicates that state of the QoS flow on the base station is activated state or inactive state；

The processing module is also used to the state based on second status information QoS flow corresponding with PDU session described in the base station synchronization.
Device as described in claim 95 or 96, which is characterized in that the receiving module is also used to receive the mapping relations of the PDU session corresponding QoS flow and DRB that the base station is sent；

The processing module is also used to save the mapping relations.
Device as described in claim 94, which is characterized in that the connection management CM state of the terminal is idle state, and the network equipment is the 4th equipment of the core network, and the request message, which is used to indicate, is converted to CM connection status from CM idle state for the terminal.
Device as described in claim 98, it is characterized in that, the receiving module, it is also used to receive the third state information of the corresponding QoS flow of the PDU session sent by first equipment of the core network, the third state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state；

The processing module is also used to the state based on the corresponding QoS flow of the third flow state information PDU session synchronous with first equipment of the core network.
A kind of session management device, which is characterized in that described device is applied to base station, comprising:

Receiving module restores message for receiving the RRC connection that the terminal is sent, and the RRC connection restores to carry parameter in message；

Processing module, for determining PDU session to be activated according to the parameter；And trigger the process for activating the PDU session.
Device described in 00 according to claim 1, which is characterized in that the parameter is the mark of the PDU session to be activated or the mark of the corresponding radio resource carrying DRB of the PDU session to be activated.
Device as described in claim 100 or 101, which is characterized in that the state of the PDU session to be activated is Idle state.
Such as the described in any item devices of claim 100 to 102, which is characterized in that the RRC connection restores the first state information for also carrying the corresponding service quality QoS stream of the PDU session in message；The status information is used for the state of the base station QoS flow synchronous with the terminal.
Such as the described in any item devices of claim 100 to 103, which is characterized in that described device further include:

Sending module, for sending to the first equipment of the core network for triggering the message that the PDU session is converted to activated state.
Such as the described in any item devices of claim 100 to 104, which is characterized in that the processing module is also used Mapping relations between the corresponding QoS flow of the configuration PDU session and DRB.
Device as described in claim 105, which is characterized in that further include:

Sending module is also used to the mapping relations being sent to the terminal.
Such as the described in any item devices of claim 100 to 106, which is characterized in that described device further include:

Sending module, for the second status information of the corresponding QoS flow of the PDU session to be sent to terminal, to indicate the state of QoS described in the terminal and base station synchronization.
Such as the described in any item devices of claim 100 to 107, which is characterized in that the processing module is also used to determine that executing cell for terminal switches；

Sending module, for sending switching request message to the 4th equipment of the core network, carry that the terminal is carried in the mark or the switching request for the PDU session that the corresponding state of the terminal is activated state is corresponding and preserve the mark of the PDU session of PDU session context in the base station in the switching request message.
A kind of session management device, which is characterized in that described device is applied to the first equipment of the core network, comprising:

Receiving module carries the mark of PDU session to be activated for receiving the service request information of terminal transmission in the service request information；

Processing module, for executing the process for activating the PDU session based on the service request information.
Device as described in claim 109, which is characterized in that the first state information of the corresponding service quality QoS stream of the PDU session is carried in the service request information；The first state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state, the state for first equipment of the core network QoS flow synchronous with the terminal.
Device as described in claim 109 or 110, which is characterized in that described device further include:

Sending module, the third state information of the corresponding QoS flow of the PDU session for being sent to the terminal, to indicate the state of the corresponding QoS flow of the terminal PDU session synchronous with first equipment of the core network；The third state information indicates that state of the corresponding QoS flow of the PDU session on first equipment of the core network is activated state or inactive state.
A kind of conversation managing method characterized by comprising

In PDU session establishment or the activation of terminal, the source base station that the terminal is currently accessed receives the timer for the PDU session that the first equipment of the core network is sent；It is inactive state by the state recording of the PDU session if the source base station detects that no data is transmitting continuous to the timer expiry in the PDU session；

The source base station is when determining that being directed to terminal execution is switched to target BS from the source base station, determine the first kind PDU session for including in the PDU session of the activation of the terminal, the first kind PDU session is to be recorded as the PDU session of inactive state, switching flow is executed for the second class PDU session, the second class PDU session is the PDU session in the PDU session of the terminal in addition to the first kind session.
Method as described in claim 112, which is characterized in that the source base station executes switching flow for the second class PDU session, comprising:

The source base station sends switching request to the target BS, and the mark of the second class PDU session is only carried in the switching request；Alternatively,

The mark of the first kind PDU session and the mark of the second class PDU session are carried in the switching request；Alternatively,

The mark and the first instruction of the PDU session of the activation of the terminal, the first kind PDU session in the PDU session of activation of first instruction for marking the terminal are carried in the switching request.
Method as described in claim 112 or 113, which is characterized in that the method also includes:

During executing switching for the second class PDU session, the source base station sends the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session to the terminal.
Method as described in claim 114, which is characterized in that carried in the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session: the mark of the first kind PDU session；Alternatively,

Carry in the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session: the mark of the PDU session of the activation of the terminal and the first instruction, described first indicates the first kind PDU session in the PDU session of the activation for identifying the terminal.
Method as described in claim 114 or 115, which is characterized in that the operation of the invalid first kind PDU session includes: that the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.
Method as described in claim 112, which is characterized in that the source base station executes switching flow for the second class PDU session, comprising:

The source base station sends switching request to the 4th equipment of the core network, and the mark of the second class PDU session is only carried in the switching request；Alternatively,

The mark of the first kind PDU session and the mark of the second class PDU session are carried in the switching request；Alternatively,

The mark and the first instruction of the PDU session of the activation of the terminal, the first kind PDU session in the PDU session of activation of first instruction for marking the terminal are carried in the switching request.
A kind of conversation managing method characterized by comprising

Terminal target BS to be cut receives the switching request that the source base station that the terminal is currently accessed is sent, and the mark of the second class PDU session is only carried in the switching request；Alternatively, carrying the mark of the first kind PDU session and the mark of the second class PDU session in the switching request；Alternatively, the mark and the first instruction of the PDU session of the activation of the terminal are carried in the switching request, the first kind PDU session in the mark of PDU session of first instruction for marking the activation of the terminal；

Wherein, the PDU session of each activation of the terminal is configured a corresponding timer in foundation or activation respectively；The first kind PDU session is to be recorded as the PDU session of inactive state；It is described to be recorded as inactive PDU session and refer to meet the transmitting continuous PDU session to corresponding timer expiry of no data；The second class PDU session is the PDU session in the PDU session of the activation of the terminal in addition to the first kind DPU session；

The target BS sends the message for being used to indicate the operation that the 4th equipment of the core network executes the invalid first kind PDU session to the 4th equipment of the core network.
Method as described in claim 118, which is characterized in that carried in the message for being used to indicate the operation that the 4th equipment of the core network executes the invalid second class PDU session: the mark of the first kind PDU session.
Method as described in claim 118 or 119, which is characterized in that the operation of the invalid first kind PDU session includes: that the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.
A kind of conversation managing method characterized by comprising

During terminal is switched to target BS from source base station, the 4th equipment of the core network receives the mark for the second class PDU session that source base station or target BS are sent；

Wherein, the PDU session of each activation of the terminal is configured one in foundation or activation accordingly calmly respectively When device；The second class PDU session is the PDU session in the PDU session of the activation of the terminal in addition to the PDU session for being recorded as inactive state, and the PDU session for being recorded as inactive state, which refers to, meets the transmitting continuous PDU session to corresponding timer expiry of no data；

4th equipment of the core network is sent to the first equipment of the core network for notifying first equipment of the core network to update the message of the context of the second class PDU session.
Method as described in claim 121, which is characterized in that the 4th equipment of the core network receives the mark for the second class PDU session that target BS is sent, comprising:

4th equipment of the core network receives the path integration message that the target BS is sent, and the path integration message carries the mark of the second class PDU session.
Method as described in claim 121, which is characterized in that the 4th equipment of the core network receives the mark for the second class PDU session that source base station is sent, comprising:

4th equipment of the core network receives the switching request that the source base station is sent, and the mark of the second class PDU session is carried in the switching request.
Such as the described in any item methods of claim 121 to 123, which is characterized in that the method also includes:

4th equipment of the core network determines that first kind PDU session, the first kind PDU session are the PDU session in the PDU session of the activation for the terminal that the 4th equipment of the core network saves in addition to the corresponding second class PDU session of the mark based on the mark of the second class PDU session；

4th equipment of the core network sends the message for being used to indicate the operation for executing the invalid first kind PDU session to first equipment of the core network.
Method as described in claim 124, which is characterized in that the operation of the invalid first kind PDU session, including the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.
Method as described in claim 124 or 125, which is characterized in that after the 4th equipment of the core network determines first kind PDU session based on the mark of the first kind PDU session, the method also includes:

The state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session by the 4th equipment of the core network.
Such as the described in any item methods of claim 121 to 123, which is characterized in that the method also includes:

4th equipment of the core network receives the mark for the third class PDU session that the source base station or the target BS are sent, and the third class PDU session is the PDU session for being recorded as inactive state；

4th equipment of the core network sends the message for being used to indicate the operation for executing the invalid third class PDU session to first equipment of the core network.
Method as described in claim 127, which is characterized in that the operation of the invalid third class PDU session, comprising:

The state of the third class PDU session is converted into Idle state by activated state or deletes the third class PDU session.
Method as described in claim 127 or 128, which is characterized in that after the 4th equipment of the core network receives the mark for the third class PDU session that the source base station or the target BS are sent, the method also includes:

The state of the third class PDU session is converted to Idle state by activated state or deletes the third class PDU session by the 4th equipment of the core network.
Such as the described in any item methods of claim 127 to 129, which is characterized in that after the 4th equipment of the core network receives the mark for the third class PDU session that the source base station or target BS are sent, the method also includes:

The mark of the third class PDU session is sent to the terminal by the 4th equipment of the core network, is used to indicate the terminal for the state of the third class PDU session and is set as Idle state.
A kind of conversation managing method characterized by comprising

During terminal is switched to target BS from the source base station being currently accessed, what the terminal received that the source base station or the 4th equipment of the core network send is used to indicate the message for executing the operation of invalid first kind Packet Data Unit PDU session；

Wherein, the PDU session of each activation of the terminal is configured a corresponding timer in foundation or activation respectively；The first kind PDU session is to be recorded as the PDU session of inactive state；It is described to be recorded as inactive PDU session and refer to meet the transmitting continuous PDU session to corresponding timer expiry of no data；

The terminal executes the operation of the invalid first kind PDU session based on the message.
Method as described in claim 131, which is characterized in that carried in the message for being used to indicate the operation that the terminal executes invalid first kind Packet Data Unit PDU session: the mark of first kind PDU session.
Method as described in claim 131, it is characterized in that, carry in the message for being used to indicate the operation for executing invalid first kind Packet Data Unit PDU session: the mark of the PDU session of the activation of the terminal and the first instruction, described first indicates the first kind PDU session in the PDU session for marking the activation of the terminal；

The terminal executes the operation of the invalid first kind PDU session based on the message, comprising:

The terminal determines the first kind PDU session in the PDU session of the activation of the terminal according to first instruction, and executes the operation of the invalid first kind PDU session.
Such as the described in any item methods of claim 131 to 133, which is characterized in that the operation of the invalid first kind PDU session, comprising:

The state of the first kind PDU session is converted into Idle state by activated state or deletes the first kind PDU session.
A kind of session management device, which is characterized in that described device is applied to source base station, comprising:

Receiving module, for receiving the timer for the PDU session that the first equipment of the core network is sent in PDU session establishment or the activation of terminal；It is inactive state by the state recording of the PDU session if the source base station detects that no data is transmitting continuous to the timer expiry in the PDU session；

Processing module, for when determining that being directed to terminal execution is switched to target BS from the source base station, determine the first kind PDU session for including in the PDU session of the activation of the terminal, the first kind PDU session is to be recorded as the PDU session of inactive state, switching flow is executed for the second class PDU session, the second class PDU session is the PDU session in the PDU session of the terminal in addition to the first kind session.
Device as described in claim 135, which is characterized in that further include:

Sending module only carries the mark of the second class PDU session for sending switching request to the target BS for the second class PDU session in the processing module in the switching request；Alternatively,

The mark of the first kind PDU session and the mark of the second class PDU session are carried in the switching request；Alternatively,

The mark and the first instruction of the PDU session of the activation of the terminal, the first kind PDU session in the PDU session of activation of first instruction for marking the terminal are carried in the switching request.
Device as described in claim 135 or 136, which is characterized in that further include:

Sending module, for during executing switching for the second class PDU session, Xiang Suoshu terminal to send the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session.
Device as described in claim 137, which is characterized in that carried in the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session: the mark of the first kind PDU session；Alternatively,

Carry in the message for being used to indicate the operation that the terminal executes the invalid first kind PDU session: the mark of the PDU session of the activation of the terminal and the first instruction, described first indicates the first kind PDU session in the PDU session of the activation for identifying the terminal.
Device as described in claim 138 or 137, which is characterized in that the operation of the invalid first kind PDU session includes: that the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.
Device as described in claim 135, which is characterized in that further include:

The sending module, for sending switching request to the 4th equipment of the core network, the mark of the second class PDU session only being carried in the switching request when the processing module executes switching flow for the second class PDU session；Alternatively,

The mark of the first kind PDU session and the mark of the second class PDU session are carried in the switching request；Alternatively,

The mark and the first instruction of the PDU session of the activation of the terminal, the first kind PDU session in the PDU session of activation of first instruction for marking the terminal are carried in the switching request.
A kind of session management device, which is characterized in that described device application target base station, comprising:

Receiving module receives the switching request that the source base station that terminal is currently accessed is sent, the mark of the second class PDU session is only carried in the switching request；Alternatively, carrying the mark of the first kind PDU session and the mark of the second class PDU session in the switching request；Alternatively, the mark and the first instruction of the PDU session of the activation of the terminal are carried in the switching request, the first kind PDU session in the mark of PDU session of first instruction for marking the activation of the terminal；

Wherein, the PDU session of each activation of the terminal is configured a corresponding timer in foundation or activation respectively；The first kind PDU session is to be recorded as the PDU session of inactive state；It is described to be recorded as inactive PDU session and refer to meet the transmitting continuous PDU session to corresponding timer expiry of no data；The second class PDU session is the PDU session in the PDU session of the activation of the terminal in addition to the first kind PDU session；

Sending module, for sending the message for being used to indicate the operation that the 4th equipment of the core network executes the invalid first kind PDU session to the 4th equipment of the core network.
Device as described in claim 141, which is characterized in that carried in the message for being used to indicate the operation that the 4th equipment of the core network executes the invalid second class PDU session: the mark of the first kind PDU session.
Device as described in claim 141 or 142, which is characterized in that the operation of the invalid first kind PDU session includes: that the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.
A kind of session management device, which is characterized in that described device is applied to the 4th equipment of the core network, comprising:

Receiving module, for during terminal is switched to target BS from source base station, receiving the mark for the second class PDU session that source base station or target BS are sent；

Wherein, the PDU session of each activation of the terminal is configured a corresponding timer in foundation or activation respectively；The second class PDU session is the PDU session in the PDU session of the activation of the terminal in addition to the PDU session for being recorded as inactive state, and the PDU session for being recorded as inactive state, which refers to, meets the transmitting continuous PDU session to corresponding timer expiry of no data；

Sending module, for sending to the first equipment of the core network for notifying first equipment of the core network to update the message of the context of the second class PDU session.
Device as described in claim 144, which is characterized in that the receiving module is specifically used for described in reception The path integration message that target BS is sent, the path integration message carry the mark of the second class PDU session.
Device as described in claim 144, which is characterized in that the receiving module carries the mark of the second class PDU session specifically for receiving the switching request of the source base station transmission in the switching request.
Such as the described in any item devices of claim 144 to 146, which is characterized in that described device further include:

Processing module, for determining that first kind PDU session, the first kind PDU session are the PDU session in the PDU session of the activation for the terminal that the 4th equipment of the core network saves in addition to the corresponding second class PDU session of the mark based on the mark of the second class PDU session；

4th equipment of the core network sends the message for being used to indicate the operation for executing the invalid first kind PDU session to first equipment of the core network.
Device as described in claim 147, which is characterized in that the operation of the invalid first kind PDU session, including the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.
Device as described in claim 147 or 148, it is characterized in that, processing module is also used to after determining first kind PDU session based on the mark of the first kind PDU session, and the state of the first kind PDU session is converted to Idle state by activated state or deletes the first kind PDU session.
Such as the described in any item devices of claim 144 to 146, it is characterized in that, the receiving module, is also used to receive the mark for the third class PDU session that the source base station or target BS are sent, and the third class PDU session is the PDU session for being recorded as inactive state；

The sending module, for sending the message for being used to indicate the operation for executing the invalid third class PDU session to first equipment of the core network.
Device as described in claim 150, which is characterized in that the operation of the invalid third class PDU session, comprising:

The state of the third class PDU session is converted into Idle state by activated state or deletes the third class PDU session.
Device as described in claim 151 or 152, which is characterized in that described device further include:

Processing module, for the state of the third class PDU session to be converted to Idle state by activated state after the mark that the receiving module receives the source base station third class PDU session that perhaps target BS is sent or deletes the third class PDU session.
Such as the described in any item devices of claim 150 to 152, it is characterized in that, the sending module, it is also used to: after the mark that the receiving module receives the third class PDU session that the source base station or target BS are sent, the mark of the third class PDU session is sent to the terminal, the terminal is used to indicate by the state of the third class PDU session and is set as Idle state.
A kind of session management device, which is characterized in that described device includes: applied to terminal

Receiving module is used to indicate the message for executing the operation of invalid first kind Packet Data Unit PDU session for during terminal is switched to target BS from the source base station being currently accessed, receive that the source base station or the 4th equipment of the core network send；

Wherein, the PDU session of each activation of the terminal is configured a corresponding timer in foundation or activation respectively；The first kind PDU session is to be recorded as the PDU session of inactive state；It is described to be recorded as inactive PDU session and refer to meet the transmitting continuous PDU session to corresponding timer expiry of no data；

Processing module, for executing the operation of the invalid first kind PDU session based on the message.
Device as described in claim 154, which is characterized in that described to be used to indicate the terminal and execute invalid the It is carried in the message of the operation of a kind of Packet Data Unit PDU session: the mark of first kind PDU session.
Device as described in claim 154, it is characterized in that, carry in the message for being used to indicate the operation for executing invalid first kind Packet Data Unit PDU session: the mark of the PDU session of the activation of the terminal and the first instruction, described first indicates the first kind PDU session in the PDU session for marking the activation of the terminal；

The terminal executes the operation of the invalid first kind PDU session based on the message, comprising:

The terminal determines the first kind PDU session in the PDU session of the activation of the terminal according to first instruction, and executes the operation of the invalid first kind PDU session.
Such as the described in any item devices of claim 154 to 156, which is characterized in that the operation of the invalid first kind PDU session, comprising:

The state of the first kind PDU session is converted into Idle state by activated state or deletes the first kind PDU session.