CN110012553A

CN110012553A - Conversation controlling method, the network equipment and terminal

Info

Publication number: CN110012553A
Application number: CN201810009027.5A
Authority: CN
Inventors: 柯小婉
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-01-04
Filing date: 2018-01-04
Publication date: 2019-07-12
Anticipated expiration: 2038-01-04
Also published as: WO2019134657A1; CN110012553B

Abstract

The invention discloses a kind of conversation controlling method, the network equipment and terminal, method includes: to obtain the operation requests information of Packet Data Unit PDU session information；According to operation requests information, PDU Dialog processing is carried out.The present invention passes through the cooperation of terminal, first network unit and the second network unit, and the terminal being suspended can restore PDU session when connecting recovery on demand, save the resource of wireless access network, reduces signaling overheads.

Description

Conversation controlling method, the network equipment and terminal

Technical field

The present invention relates to field of communication technology more particularly to a kind of conversation controlling methods, the network equipment and terminal.

Background technique

Honeycomb Internet of Things (Cellular Internet of Things, CIOT) are a kind of optimization methods of data transmission, packet Include control panel CIOT and user face CIOT.Wherein, user face CIOT refer to terminal (User Equipment, UE) need by When discharging or is inactive, the context of terminal can be kept in wireless access network by held terminal and internetwork connection mode. When terminal needs to restore the connection with network, do not need to establish the context of terminal in wireless access network again., terminal can also Not need to send service request to core net, to achieve the effect that save the signaling and reduce time delay that connection is established.Wherein, Terminal and network connection connection can refer to wireless heterogeneous networks (the Radio Resource between terminal and access net Control, RRC) connection, accesses the connection between net and core net about terminal.

To the terminal for using user face CIOT, the letter that connects foundation can be saved in service request procedure when connecting and restoring Enable and reduce time delay, but the PDU session for being suspended, especially wireless access network (Radio Access Network, RAN) The PDU session that side is suspended cannot decide whether to restore according to the wish of terminal, if restore radio bearer.If silent Recognize the PDU session for restoring all, the PDU session for restoring to be not desired to restore for terminal then wastes the wireless money for establishing radio bearer Source.

Summary of the invention

The embodiment of the invention provides a kind of conversation controlling method, the network equipment and terminals, to solve PDU meeting in 5G system The problem that signaling is complicated, unlimited resources utilization rate is low is talked about in recovery process.

In a first aspect, being applied to first network cell side, packet the embodiment of the invention provides a kind of conversation controlling method It includes:

Obtain the operation requests information of Packet Data Unit PDU session information；Operation requests information includes in following information At least one of: the PDU session information and terminal request of PDU session information, terminal request release that terminal request is restored are hung up PDU session information；

According to operation requests information, PDU Dialog processing is carried out.

Second aspect, the embodiment of the invention also provides a kind of network equipments, are applied to first network cell side, comprising:

First obtains module, for obtaining the operation requests information of Packet Data Unit PDU session information；Operation requests letter Breath includes at least one in following information: the PDU session letter of PDU session information, terminal request release that terminal request is restored The PDU session information that breath and terminal request are hung up；

First processing module, for carrying out PDU Dialog processing according to operation requests information.

The third aspect, the embodiment of the invention provides a kind of conversation controlling methods, are applied to first network cell side, packet It includes:

Obtain the operation requests information of Packet Data Unit PDU session information；Operation requests information includes in following information At least one of: PDU session information, the second network element requests of the second network element requests recovery discharge PDU session information The PDU session information hung up with the second network element requests；

Fourth aspect, the embodiment of the invention also provides a kind of network equipments, are applied to first network cell side, comprising:

Second obtains module, for obtaining the operation requests information of Packet Data Unit PDU session information；Operation requests letter Breath includes at least one in following information: PDU session information, the second network element requests of the second network element requests recovery Discharge the PDU session information that PDU session information and the second network element requests are hung up；

Second processing module, for carrying out PDU Dialog processing according to operation requests information.

5th aspect, the embodiment of the invention provides a kind of conversation controlling methods, are applied to the second network unit side, packet It includes:

Obtain the operation requests information of Packet Data Unit PDU session information；Operation requests information includes in following information At least one of: the PDU session information of terminal request recovery, the PDU session information of terminal request release, terminal request are hung up The PDU session letter that PDU session information, the PDU session restoration result information of first network unit, third network element requests restore Breath, third network element requests discharge PDU session information, the PDU session information that third network element requests are hung up, have lower line number According to transmission demand PDU session information and receive the PDU session information of downlink data notification；

6th aspect, the embodiment of the invention provides a kind of network equipments, are applied to the second network unit side, comprising:

Third obtains module, for obtaining the operation requests information of Packet Data Unit PDU session information；Operation requests letter Breath includes at least one in following information: the PDU session letter of PDU session information, terminal request release that terminal request is restored It ceases, PDU session restoration result information, the third network unit of the PDU session information that terminal request is hung up, first network unit are asked The PDU for asking the PDU session information, third network element requests release PDU session information, third network element requests of recovery to hang up Session information, the PDU session information for having downlink data transmission demand and the PDU session information for receiving downlink data notification；

Third processing module, for carrying out PDU Dialog processing according to operation requests information.

7th aspect, the embodiment of the invention provides a kind of conversation controlling methods, are applied to terminal side, comprising:

The operation requests information of Packet Data Unit PDU session information is sent to first network unit；

It receives the first network unit and response message is operated according to the PDU session that operation requests information is sent；

Response message is operated according to PDU session, carries out PDU Dialog processing.

Eighth aspect, the embodiment of the invention also provides a kind of terminals, comprising:

Third sending module, for sending the operation requests of Packet Data Unit PDU session information to first network unit Information；

Second receiving module is grasped for receiving the first network unit according to the PDU session that operation requests information is sent Make response message；

Fourth processing module is handled PDU session for operating response message according to PDU session.

9th aspect, the embodiment of the invention provides a kind of network equipment, the network equipment include processor, memory and It is stored in the computer program that can be run on memory and on a processor, processor is realized above-mentioned when executing computer program The step of conversation controlling method.

Tenth aspect, the embodiment of the invention provides a kind of terminal, terminal includes processor, memory and is stored in On reservoir and the computer program that can run on a processor, above-mentioned session control is realized when computer program is executed by processor The step of method processed.

Tenth on the one hand, and the embodiment of the invention provides a kind of computer readable storage medium, computer-readable storage mediums The step of being stored with computer program in matter, above-mentioned conversation controlling method realized when computer program is executed by processor.

In this way, the conversation controlling method of the embodiment of the present invention, the network equipment and terminal, obtain Packet Data Unit PDU meeting Talk about the operation requests information of information；According to operation requests information, PDU Dialog processing is carried out.Wherein, operation requests information include with At least one of in lower information: the PDU session information of terminal request recovery, the PDU session information of terminal request release, terminal are asked PDU session information, the second network element requests release PDU for asking the PDU session information of hang-up, the second network element requests to restore The PDU session information that session information, the second network element requests are hung up.In this way, passing through terminal, first network unit and the second net Mutual cooperation between network unit, the terminal being suspended connect restore when, can be by operation requests information needing to restore PDU session information carries out the recovery of PDU session, to save the resource of wireless access network, reduces signaling overheads.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.

Fig. 1 shows one of the flow diagrams of conversation controlling method of first network unit in the embodiment of the present invention；

Fig. 2 indicates one of the modular structure schematic diagram of the network equipment of first network unit in the embodiment of the present invention；

Fig. 3 indicates two of the flow diagram of the conversation controlling method of first network unit in the embodiment of the present invention；

Fig. 4 indicates two of the modular structure schematic diagram of the network equipment of first network unit in the embodiment of the present invention；

Fig. 5 indicates the flow diagram of the conversation controlling method of the second network unit in the embodiment of the present invention；

Fig. 6 indicates the modular structure schematic diagram of the network equipment of the second network unit in the embodiment of the present invention；

Fig. 7 indicates the structural block diagram of the network equipment in the embodiment of the present invention；

Fig. 8 shows the flow diagrams of the conversation controlling method of terminal in the embodiment of the present invention；

Fig. 9 indicates the modular structure schematic diagram of terminal in the embodiment of the present invention；

Figure 10 indicates the structural block diagram of terminal in the embodiment of the present invention；

The network architecture schematic diagram of Figure 11 expression embodiment of the present invention；

Figure 12 indicates the flow diagram of the conversation controlling method of first embodiment of the invention；

Figure 13 indicates the flow diagram of the conversation controlling method of second embodiment of the invention；

Figure 14 indicates the flow diagram of the conversation controlling method of third embodiment of the invention；

Figure 15 indicates the flow diagram of the conversation controlling method of fourth embodiment of the invention；

Figure 16 indicates the flow diagram of the conversation controlling method of fifth embodiment of the invention；

Figure 17 indicates the flow diagram of the conversation controlling method of sixth embodiment of the invention；

Figure 18 indicates the flow diagram of the conversation controlling method of seventh embodiment of the invention.

Specific embodiment

The exemplary embodiment that the present invention will be described in more detail below with reference to accompanying drawings.Although showing the present invention in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the present invention without should be by embodiments set forth here It is limited.It is to be able to thoroughly understand the present invention on the contrary, providing these embodiments, and can be by the scope of the present invention It is fully disclosed to those skilled in the art.

Term " first ", " second " in the description and claims of this application etc. are for distinguishing similar right As without being used to describe a particular order or precedence order.It should be understood that the data used in this way in the appropriate case can be with It exchanges, so that embodiments herein described herein for example can be with suitable other than those of illustrating or describing herein Sequence is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that covering non-exclusive includes example Such as, the process, method, system, product or equipment for containing a series of steps or units those of are not necessarily limited to be clearly listed Step or unit, but may include being not clearly listed or intrinsic for these process, methods, product or equipment other Step or unit.

The embodiment of the invention provides a kind of conversation controlling methods, are applied to first network cell side, first network unit Including at least one: wireless access network equipment, wireless access network node, wireless access network functional unit, centralized unit (Centralized Unit, CU), distributed unit (Distributed Unit, DU), base station, eNB, gNB, non-3 gpp are mutually grasped Make function (Non-3GPP InterWorking Function, N3IWF), access control (Access Controller, AC) section Point, access point (Access Point, AP) equipment or WLAN (Wireless Local Area Networks, WLAN) Node；Second network unit includes at least one: equipment of the core network, core net node, core net functional unit, moving tube Manage entity (Mobility Management Entity, MME), access management function (Access Management Function, AMF), conversation management functional (Session Management Function, SMF), SGW, PGW, user plane Function UPF.Wherein, for the embodiment of the present invention only using first network unit as wireless access network, the second network unit is that core net is Example is illustrated.

It is worth noting that user face CIOT may be named as other titles, but not in 5G mobile communication system Influence the present invention.

In embodiments of the present invention, hang-up/release indicates to hang up and/or release, recovery PDU session may be embodied in swashing PDU session living.

As shown in Figure 1, the conversation controlling method of the embodiment of the present invention specifically includes the following steps:

Step 11: obtaining the operation requests information of Packet Data Unit PDU session information.

Wherein, operation requests information may include at least one in following information: the PDU session letter that terminal request is restored The PDU session information that breath, the PDU session information of terminal request release and terminal request are hung up.

Wherein, PDU session information may include at least one in following information: PDU session label information restores instruction QoS flow information in information, hang-up instruction information, release instruction information, PDU session identification bit cartographic information and PDU session.

Optionally, the bit position in PDU session bit map represent PDU session identification (such as N-bit represent PDU session identification is N).N-bit position may indicate whether operation (such as request restore, request release, request hang up, hang Rise successfully) PDU session identification be N PDU session.For example N-bit is designated as 1, can indicate to execute corresponding PDU session One of following session operation: request activation, request restore, request release, request is hung up, confirmation restores, is successfully recovered, discharge at Function is hung up successfully.

For example N-bit is designated as 0, can indicate to execute corresponding PDU session one of following session operation: request is not Activation, request do not restore, request not discharge, request not hang up, confirms and cannot restore, restore failure, release failure, hang-up mistake It loses.It is understood that, the byte for needing the information transmitted can be saved by PDU session bit map.

When the PDU session information that request restores includes PDU session bit map, PDU session bit map can be indicated Which PDU session request session.For example it can be asked by setting the PDU session that 1 instruction PDU session identification is N for N-bit Ask session.

When the PDU session information of request release includes PDU session bit map, PDU session bit map can be indicated Which PDU session request release.For example it can be asked by setting the PDU session that 1 instruction PDU session identification is N for N-bit Ask release.

When the PDU session information that request is hung up includes PDU session bit map, PDU session bit map can be indicated Which PDU session request is hung up.For example it can be asked by setting the PDU session that 1 instruction PDU session identification is N for N-bit Ask hang-up.

When the PDU session information or the irreclaimable PDU session of confirmation that confirmation restores include PDU session bit map, PDU session bit map can indicate which PDU session confirmation restores and/or which PDU session confirmation cannot restore.Such as it can To be restored by setting 1 instruction PDU session identification for N-bit for the PDU session request confirmation of N.Such as can pass through by N-bit, which is set as the PDU session request confirmation that 0 instruction PDU session identification is N, to be restored.

When PDU session restoration result information includes PDU session bit map, which PDU session bit map can indicate A little PDU sessions are successfully recovered and/or which PDU session confirmation restores failure.Such as it can be by setting 1 finger for N-bit Show that PDU session identification is that the PDU session of N is successfully recovered.Such as it can be by setting 0 instruction PDU session identification for N-bit Restore failure for the PDU session of N.

Optionally, PDU session label information may include QoS flow identification information PDU session identification bit cartographic information can To include QoS flow identification bit cartographic information, QoS flow information may include the radio bearer information of QoS flow mapping.It is general next It says, a PDU session may include multiple QoS flows.Only there is the request of at least one QoS flow to restore, corresponding PDU's PDU session just needs to request to restore.

Step 12: according to operation requests information, carrying out PDU Dialog processing.

In a kind of embodiment, step 12 may include at least one of following:

When operation requests information is the PDU session information that terminal request is restored, can execute at least one of following: to end The PDU session that end request restores carries out recovery operation；Recovery operation is carried out to all PDU sessions that terminal is hung up；Terminal is hung All PDU sessions risen carry out recovery operation and in inadequate resources, and the PDU session preferentially restored to terminal request restores Operation.Wherein, resource mentioned here may include the various moneys such as radio resource, CPU, memory inside first network unit Source.In a kind of embodiment, preferentially refers to and assume that PDU session that UE request restores is PDU session 1 and PDU session 2, but eventually The PDU session that end is hung up has PDU session 1, PDU session 2, PDU session 3, PDU session 4 and PDU session 5.First network unit exists Resource abundance is full recovery, but in inadequate resource, preferential to restore PDU session 1 and PDU session 2, if having restored PDU session 1 With, there are also if extra resource, can further restore PDU session 3, PDU session 4 etc. after PDU session 2.

It, can be to the PDU of terminal request release when operation requests information includes the PDU session information of terminal request release Session carries out release operation.

It, can be to the PDU of terminal request hang-up when operation requests information includes the PDU session information that terminal request is hung up Session carries out pending operation.

Wherein, it is worth noting that, the step of carrying out recovery operation to PDU session, can be with are as follows: can execute to PDU session At least one of in operating below: restore the context of PDU session；Restore the corresponding radio bearer of PDU session；For PDU session QoS flow distribution and/or mapping radio bearer resources；Restore between first network unit and the second network unit about terminal Connection.

Further, step 12, which can also include at least one of the following: to send to terminal, confirms that recovery and/or confirmation cannot The PDU session information of recovery；The PDU session restoration result information of first network unit is sent to the second network unit.Namely Say, one, first network unit while handling PDU session or later, can also according to processing result generate confirmation it is extensive Again and/or confirms irreclaimable PDU session information and feed back to terminal；Two, first network unit is to PDU session While reason or later, the PDU session restoration result of first network unit can be generated according to processing result and is sent to second Network unit.Wherein, the embodiment of the present invention does not limit precedence relationship between the two steps (above-mentioned one and two), does not also limit The precedence relationship that treatment process and processing result are sent both can also can all have been handled latter concurrent with sending in processing It send.

Wherein, the PDU session restoration result information of first network unit may include at least one in following information: extensive What multiple successful PDU session information, the PDU session information for restoring failure, the PDU session information of request release and request were hung up PDU session information.

Optionally, the PDU session information being successfully recovered can serve to indicate that terminal and first network unit are successfully recovered PDU session；

The PDU session information for restoring failure can serve to indicate that terminal or first network unit restore the PDU session of failure；

The PDU session information of request release can serve to indicate that the PDU session of terminal recovery failure, first network unit are extensive At least one of in the PDU session of the PDU session to fail again and terminal request release；

The PDU session information that request is hung up can serve to indicate that the PDU session of terminal recovery failure, first network unit are extensive At least one of in the PDU session that the PDU session to fail again and terminal request are hung up；

The PDU session information that confirmation restores can serve to indicate that there are the PDU session of PDU session context, can distribute Or PDU session, first network unit and the second network unit of mapping radio bearer resources all confirm the PDU session that can restore At least one of in；

Confirm that irreclaimable PDU session may include: there is no the PDU session of PDU session context, can not distribute Or the PDU session of mapping radio bearer resources, first network unit confirm that irreclaimable PDU session, the second network unit are true Recognize at least one in irreclaimable PDU session.

Optionally, after sending the step of confirmation restores and/or confirms irreclaimable PDU session information to terminal, It can also include: the PDU restoration result information for receiving the terminal of terminal feedback.Wherein, the PDU restoration result information of terminal can be with It include: at least one in the PDU session information that terminal is successfully recovered and the PDU session information of terminal recovery failure.

Optionally, the step of sending the PDU session restoration result information of first network unit to the second network unit may be used also To include: to be asked to the session operation that the second network unit sends the PDU session restoration result information for carrying first network unit It asks；Receive the PDU session restoration result information for the second network unit that the second network unit is returned according to session operation requests.

Optionally, the PDU session restoration result information of the second network unit may include at least one in following information: The PDU session information of the PDU session information, recovery failure that are successfully recovered requests the PDU session information restored, request to discharge The PDU session information that PDU session information and request are hung up.

Specifically, the PDU session information being successfully recovered can serve to indicate that first network unit and the second network unit are equal The PDU session being successfully recovered；

The PDU session information for restoring failure can serve to indicate that the second network unit restores the PDU session of failure；

Second network element requests restore PDU session information can serve to indicate that first network unit hang up but second The PDU session of network element requests recovery, first network unit does not restore that failure is still hung up but the second network unit is asked Seek at least one in the PDU session of recovery；

The PDU session information of second network element requests release can serve to indicate that the second network unit restores failure At least one of in the PDU session that PDU session, first network unit are successfully recovered but the second network element requests discharge；

The PDU session information that second network element requests are hung up can serve to indicate that terminal restores the PDU session of failure, the At least one of in the PDU session that one network unit is successfully recovered but the second network element requests discharge.

Wherein, the PDU session for receiving the second network unit that the second network unit is returned according to session operation requests restores It can also include: the PDU session restoration result information according to the second network unit after the step of result information, to terminal PDU session is handled.One example is: the PDU session 1 and 2 of first network unit recovery terminal, but the second network unit PDU session 1 is successfully recovered, PDU session 2 is restored to fail.At this point, it can be appreciated that restore failure PDU session 2, second Network unit can indicate that PDU session 2 restores failure, request release PDU session 2 or request and hangs up PDU session 2.

Optionally, according to the PDU session restoration result information of the second network unit, the PDU session of terminal is handled The step of particular content, as follows, details are not described herein again.

In another embodiment, step 12 may include: when operation requests information includes the PDU that terminal request is restored It when session information, can execute: send the PDU session information that terminal request is restored to the second network unit.

Wherein, it after the step of sending the PDU session information of terminal request recovery to the second network unit, can also wrap Include: the second network unit of reception is extensive according to the PDU session for the second network unit that the PDU session information that terminal request is restored is fed back Multiple result information；According to the PDU session restoration result information of the second network unit, can the PDU session to terminal handle.

It is worth noting that the PDU session restoration result information of above-mentioned second network unit may include in following information At least one of: the PDU session letter of PDU session information, the recovery failure of the second network unit that the second network unit is successfully recovered PDU session information, the second net of PDU session information, the release of the second network element requests that breath, the second network element requests restore The PDU session information that network unit requests are hung up.

One example is: first network unit restores the PDU session 1,2,3 of terminal and what terminal request was restored is PDU meeting Words 1.Second network unit is successfully recovered the PDU session 1 of terminal request.Second network unit finds there is downlink data biography simultaneously The recovery of PDU session 2 is lost successfully in the PDU session 2 of defeated demand.At this point, it can be appreciated that PDU session 3 to extra recovery, second Network unit can indicate that PDU session 3 is hung up in request release PDU session 3 or request.

Another example is that first network unit, which sends terminal request to the second network unit, restores PDU session 1.Second Network unit is successfully recovered the PDU session 1 of terminal request.Second network unit finds there is downlink data transmission demand simultaneously The recovery of PDU session 2 is lost successfully in PDU session 2.At this point, it can be appreciated that PDU session 3 to extra recovery, the second network unit It can indicate to be successfully recovered PDU session 1 and 2 and be sent to first network unit.First network unit is then corresponding to restore PDU session 1 and 2.First network unit can also indicate that UE restores PDU session 1 and 2.

According to the PDU session restoration result information of the second network unit, the step of processing the PDU session of terminal, May include:

If the PDU session restoration result information of the second network unit is the PDU session letter that the second network unit is successfully recovered Breath can execute at least one in following operation to the PDU session that the second network unit is successfully recovered:

The PDU session for the PDU session information instruction that second network unit is successfully recovered is resumed not yet, can be to PDU Session carries out carrying out PDU session recovery operation (as above to PDU session progress recovery operation, details are not described herein again)；

Detecting that the PDU session that the second network unit is successfully recovered can not be in first network unit or terminal side recovery When, request release can be sent to the second network unit or hang up the solicited message of the PDU session；

If the PDU session restoration result information of the second network unit is the PDU session letter that the second network unit restores failure Breath can execute at least one in following operation to the PDU session that the second network unit restores failure:

Hang up the second network unit restore failure PDU session context,

Hang up the second network unit restore failure the corresponding radio bearer of PDU session context,

Discharge the second network unit restore failure the corresponding bearing resource of PDU session,

Save the second network unit restore failure PDU session uplink address,

By the second network unit restore failure PDU session state setting be hang up,

The PDU session of requesting terminal hang-up the second network unit recovery failure,

The PDU session context of requesting terminal deletion the second network unit recovery failure,

Delete the PDU session that the second network unit restores failure in requesting terminal；

If the PDU session restoration result information of the second network unit is the PDU session letter that the second network element requests restore It ceases, at least one in following operation can be executed to the PDU session that the second network element requests restore:

Restore the second network element requests recovery PDU session context,

Restore the second network element requests recovery the corresponding radio bearer of PDU session,

For the second network element requests restore PDU session distribution or mapping radio bearer resources,

Restore the connection between the second network unit about terminal；

If the PDU session restoration result information of the second network unit is the PDU session letter of the second network element requests release It ceases, at least one in following operation can be executed to the PDU session that the second network element requests discharge:

Discharge the second network element requests release PDU session context,

Discharge the second network element requests release the corresponding radio bearers context of PDU session,

Discharge the second network element requests release the corresponding radio bearer resources of PDU session,

The PDU session information that the second network element requests discharge is sent to terminal；

If the PDU session restoration result information of the second network unit is the PDU session letter that the second network element requests are hung up It ceases, at least one in following operation can be executed to the PDU session that the second network element requests are hung up:

Hang up the second network element requests hang-up PDU session context,

Hang up the second network element requests hang-up the corresponding radio bearers context of PDU session,

Discharge the second network element requests hang-up the corresponding radio bearer resources of PDU session,

The PDU session information that the second network element requests are hung up is sent to terminal.

In another embodiment, step 12 may include at least one:

When operation requests information include the second network element requests restore PDU session information when, can execute with down toward One item missing: the PDU session information that the second network element requests obtained restore is sent to terminal；

First network unit may include at least one: wireless access network equipment, wirelessly connects wireless access network node Networking functional unit, centralized unit CU, distributed unit DU, base station, eNB, gNB, N3IWF, access control node AC, access point AP equipment or WLAN WLAN node.

Second network unit may include at least one: equipment of the core network, core net node, core net function list Member, MME, AMF, SMF, SGW, PGW, user-plane function UPF.

Be described above in conversation controlling method, the concrete operations process of first network unit, below the present embodiment will tie Concrete scene is closed to be described further it.

Scene one,

The PDU session information that first network unit restores according to terminal request, discharges and/or hangs up carries out at PDU session Reason.

Example one,

First network unit obtains the operation requests information of PDU session information, carries out PDU meeting according to the operation requests information Words processing.Wherein, which may include: the PDU session information that terminal request is restored, discharges and/or hung up.

Specifically, wireless heterogeneous networks (the Radio Resource that first network unit can be sent by receiving terminal Control, RRC) recovery request (i.e. operation requests information), obtain the PDU session that terminal request is restored, discharges and/or hung up Information.

When carrying the PDU session information of terminal request recovery in RRC recovery request, first network unit can be to end The PDU session that end request restores carries out recovery operation.

When carrying the PDU session information of terminal request release in RRC recovery request, terminal request can be discharged PDU session carries out release operation.

When carrying the PDU session information of terminal request hang-up in RRC recovery request, terminal request can be hung up PDU session carries out pending operation.

During the PDU session restored to terminal request is restored, discharged and hung up, first network unit may be used also Restore and/or confirm irreclaimable PDU session information and first network unit to generate confirmation according to processing result At least one of in PDU session restoration result information.Wherein, first network unit can to terminal send confirmation restore and/or Confirm irreclaimable PDU session information, restores and/or confirm irreclaimable PDU session information sending confirmation to terminal Later, it can receive the PDU restoration result information of the terminal of terminal feedback.Further, first network unit can also be to Two network units send the PDU session restoration result information of first network unit, specifically carry to the transmission of the second network unit The session operation requests of the PDU session restoration result information of first network unit；After sending session operation requests, it can also connect The PDU session restoration result information for receiving the second network unit that the second network unit is returned according to session operation requests, further according to The PDU session restoration result information of second network unit, handles the PDU session of terminal.It is worth noting that the present invention Embodiment does not limit the precedence relationship of the two steps.

Further, the PDU session restoration result information of the second network unit may include at least one in following information : PDU session information, the second net of PDU session information, the recovery failure of the second network unit that the second network unit is successfully recovered The PDU session information of network unit requests recovery, the PDU session information of the second network element requests release, the second network unit are asked Seek the PDU session information of hang-up.First network unit is according to the PDU session restoration result information of the second network unit, to terminal PDU session the step of being handled can refer to following manner realization:

If the PDU session restoration result information of the second network unit is the PDU session letter that the second network unit is successfully recovered Breath is detecting that PDU session that the second network unit is successfully recovered can not be when first network unit or terminal side restore, can be with Request release is sent to the second network unit or hangs up the solicited message of the PDU session；

Hang up the second network unit restore failure PDU session context,

Save the second network unit restore failure PDU session uplink address,

If the PDU session restoration result information of the second network unit is the PDU session letter that the second network element requests restore Breath can execute at least one in following operation to the PDU session that the second network element requests restore:

Restore the second network element requests recovery PDU session context,

Restore the connection between the second network unit about terminal；

If the PDU session restoration result information of the second network unit is the PDU session letter of the second network element requests release Breath can execute at least one in following operation to the PDU session of the second network element requests release:

Discharge the second network element requests release PDU session context,

If the PDU session restoration result information of the second network unit is the PDU session letter that the second network element requests are hung up Breath can execute at least one in following operation to the PDU session that the second network element requests are hung up:

Hang up the second network element requests hang-up PDU session context,

Example two,

Unlike example one, when carrying the PDU session information of terminal request recovery in RRC recovery request, the One network unit can carry out recovery operation to all PDU sessions that terminal is hung up.

Example three,

Unlike example two, which considers system resource, specifically, when carrying end in RRC recovery request When the PDU session information that end request restores, first network unit can carry out recovery operation to all PDU sessions that terminal is hung up And in inadequate resource, recovery operation preferentially is carried out to the PDU session that terminal request is restored.

Scene two,

Unlike scene one, first network unit is after the operation requests information for receiving terminal transmission, Ke Yizhi It connects and the operation requests information is transmitted to the second network unit, receive the PDU meeting that the second network unit is restored according to terminal request Talk about the PDU session restoration result information of the second network unit of information feedback；Restore to tie according to the PDU session of the second network unit Fruit information, can the PDU session to terminal handle.

In the conversation controlling method of the embodiment of the present invention, first network unit obtains Packet Data Unit PDU session information Operation requests information；According to operation requests information, PDU Dialog processing can be carried out.Wherein, operation requests information may include At least one of in following information: the PDU session information of terminal request recovery, the PDU session information of terminal request release, terminal Request the PDU session information hung up.In this way, by the mutual cooperation between terminal, first network unit and the second network unit, The terminal being suspended can carry out PDU session by the PDU session information for needing to restore in operation requests information when connecting recovery Recovery reduce signaling overheads to save the resource of wireless access network.

Above embodiments describe the conversation controlling method under different scenes in detail respectively, below the present embodiment will combine it is attached Figure is described further its corresponding network equipment.

As shown in Fig. 2, the network equipment 200 of the embodiment of the present invention, is able to achieve acquisition packet data list in above-described embodiment The operation requests information of first PDU session information carries out the details of PDU conversation processing method according to operation requests information, and reaches Identical effect, which may include following functions module:

First obtains module 210, for obtaining the operation requests information of Packet Data Unit PDU session information；Operation is asked Seeking information may include at least one in following information: the PDU session information of terminal request recovery, terminal request discharge The PDU session information that PDU session information and terminal request are hung up；

First processing module 220 can be used for carrying out PDU Dialog processing according to operation requests information.

Wherein, first processing module 210 may include:

First processing submodule can be used for holding when operation requests information is the PDU session information that terminal request is restored At least one of below row: carrying out recovery operation to the PDU session that terminal request is restored；To terminal hang up all PDU sessions into Row recovery operation；And recovery operation and in inadequate resource is carried out to all PDU sessions that terminal is hung up, preferentially terminal is asked The PDU session of recovery is asked to carry out recovery operation；

Second processing submodule can be used for when operation requests information is the PDU session information of terminal request release, right The PDU session of terminal request release carries out release operation；

Third handles submodule, can be used for when operation requests information is the PDU session information that terminal request is hung up, right The PDU session that terminal request is hung up carries out pending operation.

Wherein, carrying out recovery operation to PDU session can be with are as follows:

At least one in following operation is executed to PDU session:

Restore the context of PDU session；

Restore the corresponding radio bearer of PDU session；

For the QoS flow distribution and/or mapping radio bearer resources of PDU session；

Restore the connection between first network unit and the second network unit about terminal.

Wherein, first processing module can also include at least one of the following:

First sending submodule can be used for sending confirmation to terminal and restore and/or confirm irreclaimable PDU session letter Breath；

And

Second sending submodule, the PDU session that can be used for sending first network unit to the second network unit restore knot Fruit information；Wherein, the PDU session restoration result information of first network unit may include at least one in following information: extensive What multiple successful PDU session information, the PDU session information for restoring failure, the PDU session information of request release and request were hung up PDU session information.

Wherein, the PDU session information being successfully recovered can serve to indicate that terminal and first network unit were successfully recovered PDU session；

Wherein, first processing module can also include:

First receiving submodule can be used for receiving the PDU restoration result information of the terminal of terminal feedback；Wherein, terminal PDU restoration result information may include: PDU session letter that PDU session information that terminal is successfully recovered and terminal restore failure At least one of in breath.

Wherein, the second sending submodule may include:

First transmission unit, the PDU session that can be used for carrying first network unit to the transmission of the second network unit are extensive The session operation requests of multiple result information；

First receiving unit can be used for receiving the second network list that the second network unit is returned according to session operation requests The PDU session restoration result information of member.

Wherein, first processing module can also include:

Submodule is handled, can be used for the PDU session restoration result information according to the second network unit, to the PDU of terminal Session is handled.

Wherein, first processing module may include:

Fourth process submodule can be used for when operation requests information includes the PDU session information that terminal request is restored, It can execute: send the PDU session information that terminal request is restored to the second network unit.

Wherein, first processing module can also include:

Second receiving submodule can be used for receiving the PDU session information that the second network unit is restored according to terminal request The PDU session restoration result information of second network unit of feedback；

Wherein, the PDU session restoration result information of the second network unit may include at least one in following information: the PDU session information, the second network list of PDU session information, the recovery failure of the second network unit that two network units are successfully recovered The PDU session information and the second network element requests of PDU session information, the release of the second network element requests that member request restores are hung The PDU session information risen.

Wherein, processing submodule may include:

First processing units, if the PDU session restoration result information that can be used for the second network unit is the second network list The PDU session information that member is successfully recovered is detecting that the PDU session that the second network unit is successfully recovered can not be in first network list When member or terminal side are restored, request release is sent to the second network unit or hangs up the solicited message of the PDU session；

The second processing unit, if the PDU session restoration result information that can be used for the second network unit is the second network list Member restores the PDU session information of failure, and the PDU session for restoring failure to the second network unit can execute in following operation extremely One item missing:

Hang up the second network unit restore failure PDU session context,

Save the second network unit restore failure PDU session uplink address,

Third processing unit, if the PDU session restoration result information that can be used for the second network unit is the second network list The PDU session information that member request restores, the PDU session restored to the second network element requests can execute in following operation extremely One item missing:

Restore the second network element requests recovery PDU session context,

Restore the connection between the second network unit about terminal；

Fourth processing unit, if the PDU session restoration result information that can be used for the second network unit is the second network list The PDU session information of member request release, can execute in following operation extremely the PDU session of the second network element requests release One item missing:

Discharge the second network element requests release PDU session context,

5th processing unit, if the PDU session restoration result information that can be used for the second network unit is the second network list The PDU session information that member request is hung up, the PDU session hung up to the second network element requests can execute in following operation extremely One item missing:

Hang up the second network element requests hang-up PDU session context,

Wherein, first network unit may include at least one: wireless access network equipment, wireless access network node, Wireless access network functional unit, centralized unit CU, distributed unit DU, base station, non-3 gpp interoperability function N3IWF, access control Node AC, access point AP equipment or WLAN WLAN node processed；

Second network unit may include at least one: equipment of the core network, core net node, core net function list Member, mobile management entity MME, access management function AMF, conversation management functional SMF, SGW, PGW, user-plane function UPF.

It is worth noting that the network equipment of the embodiment of the present invention, by obtaining Packet Data Unit PDU session information Operation requests information；According to operation requests information, PDU Dialog processing is carried out.Wherein, operation requests information may include following letter At least one of in breath: PDU session information, the terminal request extension of PDU session information, terminal request release that terminal request is restored The PDU session information risen.In this way, being suspended by the mutual cooperation between terminal, first network unit and the second network unit Terminal connect restore when, the extensive of PDU session can be carried out by the PDU session information that needs to restore in operation requests information It is multiple, to save the resource of wireless access network, reduce signaling overheads.

In another embodiment, which is applied to first network unit, as shown in figure 3, further including following step It is rapid:

Step 31: obtaining the operation requests information of Packet Data Unit PDU session information.

Wherein, operation requests information may include at least one in following information: what the second network element requests restored The PDU session letter that PDU session information, the second network element requests release PDU session information, the second network element requests are hung up Breath.

Optionally, the bit position in PDU session bit map can represent PDU session identification (such as N-bit generation The PDU session identification of table is N).N-bit position may indicate whether operation (such as request restore, request release, request hang Rise, hangs up successfully) PDU session identification for N PDU session.For example N-bit is designated as 1, can indicate to corresponding PDU meeting Words execute one of following session operation: request activation, request restore, request release, request is hung up, confirmation restores, is successfully recovered, Discharge successfully, hang up successfully.

Optionally, PDU session information may include at least one in following information: QoS flow identification information restores instruction Information hangs up the radio bearer information that instruction information, release instruction information, QoS flow identification bit cartographic information, QoS flow map. In general, a PDU session may include multiple QoS flows.Only there is the request of at least one QoS flow to restore, it is corresponding The PDU session of PDU just needs to request to restore.

Step 32: according to operation requests information, carrying out PDU Dialog processing.

In a kind of embodiment, step 32 may include at least one of following:

It, can be to the second network when operation requests information includes the PDU session information that the second network element requests restore The PDU session that unit requests are restored carries out recovery operation；

It, can be to the second network when operation requests information includes the PDU session information of the second network element requests release The PDU session of unit requests release carries out release operation；

It, can be to the second network when operation requests information includes the PDU session information that the second network element requests are hung up The PDU session that unit requests are hung up carries out pending operation.

Optionally, step 32 can also include: to send operation requests information to terminal.In one embodiment, work as operation When solicited message includes the PDU session information that the second network element requests restore, it can execute at least one of following: be sent out to terminal The PDU session information for sending the second network element requests to restore；When operation requests information includes what the second network element requests discharged It when PDU session information, can execute at least one of following: send the second network element requests release PDU session information to terminal； When operation requests information includes the PDU session information that the second network element requests are hung up, can execute at least one of following: to Terminal sends the PDU session information that the second network element requests are hung up.

Optionally, step 31 can be with are as follows: receives paging message or notification message that the second network unit is sent.Operation requests Information is carried in paging message or notification message.Sending operation requests information to terminal can be with are as follows: transmits and receives to terminal Paging message or notification message；

Wherein, the PDU session that the second network element requests of instruction restore can be carried in paging message or notification message Information, the second network element requests release PDU session information, the second network element requests hang up PDU session information in extremely One item missing.

Scene three,

Unlike scene one and scene two, first network unit can restore according to the second network element requests, release The PDU session information put and/or hung up carries out PDU Dialog processing.

Specifically, first network unit can receive the paging message of the second network unit transmission or notification message (is grasped Make solicited message), and the paging message or notification message transmitted and received to terminal.It wherein, can in paging message or notification message To carry PDU session information, the second network element requests release PDU session letter that the second network element requests of instruction restore At least one of the PDU session information that breath, the second network element requests are hung up.

When paging message or notification message include the PDU session information that the second network element requests restore, can execute At least one of below: the PDU session information that the second network element requests restore is sent to terminal；

When paging message or notification message include the PDU session information of the second network element requests release, can execute At least one of below: the second network element requests, which are sent, to terminal discharges PDU session information

When paging message or notification message include the PDU session information that the second network element requests are hung up, can execute At least one of below: the PDU session information that the second network element requests are hung up is sent to terminal.

It wherein, it is worth noting that, is to PDU to the step of PDU session progress recovery operation in scene one and scene two Session can execute at least one in following operation: restore the context of PDU session；Restore that PDU session is corresponding wirelessly holds It carries；For the QoS flow distribution and/or mapping radio bearer resources of PDU session；Restore first network unit and the second network unit it Between connection about terminal.

To PDU session carry out pending operation the step of for PDU session can execute in following operation at least one of: hang It plays the context of PDU session, hang up the corresponding radio bearers context of PDU session, the corresponding radio bearer money of release PDU session Source sends PDU session information to terminal.

The step of release operates is carried out for that can execute at least one in following operation to PDU session to PDU session: being released Put the corresponding radio bearer money of context, the corresponding radio bearers context of release PDU session, release PDU session of PDU session Source sends PDU session information to terminal.

In the conversation controlling method of the embodiment of the present invention, the available Packet Data Unit PDU session of first network unit The operation requests information of information；According to operation requests information, PDU Dialog processing can be carried out.Wherein, operation requests information can be with Including at least one in following information: PDU session information, the second network element requests of the second network element requests recovery are released Put PDU session information, the PDU session information that the second network element requests are hung up.In this way, by terminal, first network unit and Mutual cooperation between second network unit, the terminal being suspended connect restore when, can be by being needed in operation requests information The PDU session information of recovery carries out the recovery of PDU session, to save the resource of wireless access network, reduces signaling overheads.

As shown in figure 4, the network equipment 400 of the embodiment of the present invention, is able to achieve acquisition packet data list in above-described embodiment The operation requests information of first PDU session information carries out the details of PDU conversation processing method according to operation requests information, and reaches Identical effect, which may include following functions module:

Second obtains module 410, for obtaining the operation requests information of Packet Data Unit PDU session information；Operation is asked Seeking information may include at least one in following information: PDU session information, the second network of the second network element requests recovery The PDU session information that unit requests discharge PDU session information, the second network element requests are hung up；

Second processing module 420, for carrying out PDU Dialog processing according to operation requests information.

Wherein, Second processing module 420 may include at least one of following:

5th processing submodule can be used for when operation requests information being the PDU session that the second network element requests restore When information, recovery operation is carried out to the PDU session that the second network element requests restore；

6th processing submodule, can be used for when the PDU session that operation requests information is the release of the second network element requests When information, release operation is carried out to the PDU session of the second network element requests release；

7th processing submodule can be used for when operation requests information being the PDU session that the second network element requests are hung up When information, pending operation is carried out to the PDU session that the second network element requests are hung up.

Wherein, Second processing module 420 can also include:

Third sending submodule, for sending operation requests information to terminal.

Optionally, the second acquisition module 410 can also be performed: receive the paging message or notice that the second network unit is sent Message；

Third sending submodule can also be performed: the paging message or notification message transmitted and received to terminal；

The network equipment of the embodiment of the present invention, first network unit obtain the operation of Packet Data Unit PDU session information Solicited message；According to operation requests information, PDU Dialog processing can be carried out.Wherein, operation requests information may include following letter At least one of in breath: PDU session information, the second network element requests of the second network element requests recovery discharge PDU session The PDU session information that information, the second network element requests are hung up.In this way, passing through terminal, first network unit and the second network list Mutual cooperation between member, the terminal being suspended, can be by the PDU meetings for needing to restore in operation requests information when connecting recovery It talks about information and carries out the recovery of PDU session, to save the resource of wireless access network, reduce signaling overheads.

Above embodiments describe conversation controlling method of the invention from first network cell side, below the present embodiment will tie Attached drawing is closed to be described further the conversation controlling method of the second network unit side.

The embodiment of the invention provides a kind of conversation controlling methods, are applied to the second network unit side, first network unit May include at least one: wireless access network equipment, wireless access network functional unit, concentrates list at wireless access network node First CU, distributed unit DU, base station, eNB, gNB, non-3 gpp interoperability function N3IWF, access control AC node, access point AP Equipment or WLAN WLAN node；Second network unit may include at least one: equipment of the core network, core net section Point, core net functional unit, mobile management entity MME, access management function AMF, conversation management functional SMF, gateway SGW, PDN Gateway PGW, user-plane function UPF.Third network unit includes at least one: equipment of the core network, core net Node, core net functional unit, mobile management entity MME, access management function AMF, conversation management functional SMF, gateway SGW, PDN Gateway PGW, user-plane function UPF.Wherein, the embodiment of the present invention is only using first network unit as wireless access network, Second network unit be core net in AMF and SMF for be illustrated.Such as: when the second network unit is MME, third net Network unit can be SGW.When second network unit is AMF, third network unit can be SMF.Second network unit is SGW When, third network unit can be PGW.When second network unit is SMF, third network unit can be UPF.

As shown in figure 5, the conversation controlling method of the embodiment of the present invention may comprise steps of:

Step 51: obtaining the operation requests information of Packet Data Unit PDU session information.

Wherein, operation requests information may include at least one in following information: the PDU session letter that terminal request is restored The PDU session of PDU session information, first network unit that breath, the PDU session information of terminal request release, terminal request are hung up Restoration result information, the PDU session information of third network element requests recovery, third network element requests release PDU session letter It ceases, the PDU session information that third network element requests are hung up, have the PDU session information of downlink data transmission demand and receive down The PDU session information of row data notification.

Optionally, the PDU session restoration result information of first network unit may include: the PDU session letter being successfully recovered In the PDU session information that breath, the PDU session information for restoring failure, the PDU session information of request release and request are hung up at least One；

The PDU session information that terminal request is restored can be terminal request first network unit forwards or that terminal is sent The PDU session information of recovery；It for example is the PDU meeting that first network unit is restored by the request that RRC information receives terminal transmission After talking about information, then by interface messages such as S1/NG it is sent to the second network unit.Or such as to be terminal straight by NAS message Connect the PDU session information that request restores.

The PDU session information of terminal request release can be terminal request first network unit forwards or that terminal is sent The PDU session information of release；

The PDU session information that terminal request is hung up can be terminal request first network unit forwards or that terminal is sent The PDU session information of recovery.

Step 52: according to operation requests information, carrying out PDU Dialog processing.

In one embodiment, step 52 may include at least with the next item down:

PDU session to needing to carry out recovery operation can execute at least one in following operation:

Restore corresponding PDU session context,

The downlink transfer address of corresponding PDU session is sent to user plane functions entity, is activated to user plane functions entity Corresponding PDU session；

Wherein, the PDU session for needing to carry out recovery operation may include: the PDU session restoration result of first network unit The PDU session of the PDU session information instruction of PDU session, terminal request recovery that information instruction is successfully recovered, third network unit The PDU session for the PDU session information instruction that request restores, the PDU meeting for thering is the PDU session information of downlink data transmission demand to indicate Talk about, receive the PDU session of the PDU session information instruction of downlink data notification, the PDU session restoration result letter of first network unit The PDU session restoration result letter of breath instruction is successfully recovered and third network element requests restore PDU session, first network unit Cease the PDU session, first network unit for indicating to be successfully recovered and thering is the PDU session information of downlink data transmission demand to indicate The instruction of PDU session restoration result information is successfully recovered and receives the PDU session of the PDU session information instruction of downlink data notification, And terminal request restore and in the PDU session that is successfully recovered of PDU session restoration result information instruction of first network unit At least one of.

PDU session is discharged to the PDU session and first network unit requests of the PDU session information instruction of terminal request release At least one of in the PDU session of information instruction, following operation can be executed: release terminal and/or the second network element requests The PDU session of release.

PDU session and the hang-up PDU session of first network unit requests to the PDU session information instruction that terminal request is hung up At least one of in the PDU session of information instruction, following operation: held terminal and/or the second network element requests can be executed The PDU session of release.

PDU session to the recovery failure of the PDU session restoration result information of first network unit instruction, can execute with At least one of in lower operation:

The context of the PDU session of hang-up recovery failure,

The context of the PDU session of deletion recovery failure,

User plane functions are requested to delete the PDU session for restoring failure.

Optionally, can also include: after the step 52

The PDU session restoration result information for generating the second network unit, by the PDU session restoration result of the second network unit Information is sent to first network unit and/or is sent to terminal by first network unit.Wherein, the PDU of the second network unit Session restoration result information may include at least one in following information: the PDU session letter that the second network unit is successfully recovered PDU session information, the second net that breath, the second network unit restore the PDU session information of failure, the second network element requests restore The PDU session information that PDU session information, the second network element requests of network unit requests release are hung up；

Specifically, the PDU session information that the second network request restores may include: the PDU meeting of downlink data transmission demand At least one of in the PDU session that words information, the PDU session for receiving downlink data notification and third network element requests restore；

The PDU session information that second network request is hung up may include: the PDU session of the second network recovery failure, first Network unit is successfully recovered but PDU session, first network unit and the terminal of the failure of the second network recovery are successfully recovered but second At least one of in the PDU session of network recovery failure；

The PDU session information of second network request release may include: the PDU session of the second network recovery failure, first Network unit is successfully recovered but PDU session, first network unit and the terminal of the failure of the second network recovery are successfully recovered but second At least one of in the PDU session of network recovery failure.

In a kind of way of example, step 52 may include: when operation requests information is that third network element requests are extensive The PDU session that multiple PDU session information, third network element requests release PDU session information, third network element requests are hung up At least one in information, the PDU session information for having downlink data transmission demand and the PDU session information for receiving downlink data notification Xiang Shi can send the PDU meeting that third network element requests restore to first network unit by paging request or notification message Under words information third network element requests discharge PDU session information, the PDU session information that third network element requests are hung up, have At least one of in the PDU session information of row data transfer demands and the PDU session information for receiving downlink data notification.

Be described above in conversation controlling method, the concrete operations process of the second network unit, below the present embodiment will tie Concrete scene is closed to be described further it.

Scene four,

Corresponding above-mentioned scene one, the wireless heterogeneous networks (Radio that first network unit is sent by receiving terminal Resource Control, RRC) recovery request (i.e. operation requests information), it obtains terminal request and restores, discharges and/or hang up PDU session information, and corresponding PDU session is restored, discharge and/or hang-up processing.In the PDU restored to terminal request During session is restored, discharged and hung up, first network unit can also be according to processing result first network unit PDU session restoration result information, and it is sent to the second network unit (such as AMF).The PDU session restoration result of first network unit Information may include at least one in following information: terminal request recovery, release and/or the PDU session information hung up restore The PDU that successful PDU session information, the PDU session information for restoring failure, the PDU session information of request release and request are hung up Session information.In addition, the second network unit can also obtain third network unit (such as SMF, user plane functions) request restore, Release and/or the PDU session information hung up, and have the PDU session information of downlink data transmission demand and/or receive downlink The PDU session information of data notification.

Second network unit (such as SMF) can execute following behaviour after getting above-mentioned PDU session information to be treated Make:

PDU session to needing to carry out recovery operation, the PDU session restoration result information instruction such as first network unit are extensive The PDU session for the PDU session information instruction that multiple successful PDU session, terminal request are restored, third network element requests restore The PDU session of PDU session information instruction, receives down the PDU session for having the PDU session information of downlink data transmission demand to indicate PDU session, the PDU session restoration result information instruction of first network unit of the PDU session information instruction of row data notification are extensive The PDU session restoration result information instruction of PDU session, first network unit that multiple success and third network element requests restore is extensive PDU session, the PDU session of first network unit of PDU session information instruction that is multiple successful and having downlink data transmission demand are extensive Multiple result information instruction is successfully recovered and receives the PDU session and terminal request of the PDU session information instruction of downlink data notification At least one of in the PDU session that PDU session restoration result information instruction restore and first network unit is successfully recovered, it can To execute at least one in following operation:

Restore corresponding PDU session context,

PDU session is discharged to the PDU session and first network unit requests of the PDU session information instruction of terminal request release At least one of in the PDU session of information instruction, following operation can be executed: release terminal and/or the second network element requests The PDU session of release；

PDU session and the hang-up PDU session of first network unit requests to the PDU session information instruction that terminal request is hung up At least one of in the PDU session of information instruction, following operation: held terminal and/or the second network element requests can be executed The PDU session of release；

The context of the PDU session of hang-up recovery failure,

The context of the PDU session of deletion recovery failure,

User plane functions entity is requested to delete the PDU session for restoring failure.

Optionally, the second network unit can also include: generation second after having executed aforesaid operations to corresponding PDU session The PDU session restoration result information of network unit, and the PDU session restoration result information of the second network unit is sent to first Network unit and/or terminal is sent to by first network unit.First network unit can be according to the second network unit in this way PDU session restoration result information PDU session is further processed, processing mode can be found in above-mentioned scene one, thus This is repeated no more.

Scene five,

Corresponding to scene two, first network unit directly can will after the operation requests information for receiving terminal transmission The operation requests information is transmitted to the second network unit, PDU meeting of second network unit directly according to the operation requests to terminal Words are handled.It wherein, may include: terminal request recovery, release and/or the PDU session hung up in the operation requests information Information.Second network unit can also obtain third network list as with scene four other than handling above-mentioned PDU session The PDU session information that first (such as SMF, user plane functions) request restores, discharges and/or hangs up, and have downlink data transmission The PDU session information of demand and/or the PDU session information for receiving downlink data notification.Second network unit is to corresponding PDU meeting The processing mode of words can be found in scene four, therefore details are not described herein.

Scene six,

Corresponding to scene three, it is extensive that the second network unit obtains third network unit (such as SMF, user plane functions) request Multiple, release and/or the PDU session information hung up, and have the PDU session information of downlink data transmission demand and/or receive The PDU session information of downlink data notification；And third can be sent to first network unit by paging request or notification message The PDU session information that network element requests restore, discharge and/or hang up, and there is the PDU session of downlink data transmission demand to believe Cease and/or receive the PDU session information of downlink data notification.

In the conversation controlling method of the embodiment of the present invention, the second network unit is by obtaining Packet Data Unit PDU session The operation requests information of information；According to operation requests information, PDU Dialog processing is carried out.Wherein, operation requests information may include At least one of in following information: operation requests information includes at least one in following information: the PDU meeting that terminal request is restored Talk about information, terminal request release PDU session information, terminal request hang up PDU session information, first network unit PDU Session restoration result information, the PDU session information of third network element requests recovery, third network element requests discharge PDU meeting Words information, third network element requests hang up PDU session information, have downlink data transmission demand PDU session information and/or Receive the PDU session information of downlink data notification.In this way, by between terminal, first network unit and the second network unit Cooperate, the terminal being suspended connect restore when, can by the PDU session information for needing to restore in operation requests information into The recovery of row PDU session reduces signaling overheads to save the resource of wireless access network.

As shown in fig. 6, the network equipment 60 of the embodiment of the present invention, is able to achieve in above-described embodiment and obtains Packet Data Unit The operation requests information of PDU session information carries out the details of PDU conversation processing method according to operation requests information, and reaches phase Same effect, the network equipment 600 specifically include following functions module:

Third obtains module 610, can be used for obtaining the operation requests information of Packet Data Unit PDU session information；Behaviour It may include at least one in following information as solicited message: the PDU session information of terminal request recovery, terminal request release PDU session information, the PDU session information that terminal request is hung up, the PDU session restoration result information of first network unit, the PDU session information, the third network element requests of three network element requests recovery discharge PDU session information, third network unit The PDU session information hung up is requested, has the PDU session information of downlink data transmission demand and receives the PDU of downlink data notification Session information；

Third processing module 620 can be used for carrying out PDU Dialog processing according to operation requests information.

Wherein, the PDU session restoration result information of first network unit may include at least one in following information: extensive What multiple successful PDU session information, the PDU session information for restoring failure, the PDU session information of request release and request were hung up PDU session information；

The PDU session information that terminal request is restored can be terminal request first network unit forwards or that terminal is sent The PDU session information of recovery；

Wherein, third processing module 620 may include at least with the next item down:

8th processing submodule can execute in following operation extremely for the PDU session to needing to carry out recovery operation One item missing:

Restore corresponding PDU session context,

Wherein, the PDU session for needing to carry out recovery operation may include: the PDU session restoration result of first network unit The PDU session of the PDU session information instruction of PDU session, terminal request recovery that information instruction is successfully recovered, third network unit The PDU session for the PDU session information instruction that request restores, the PDU meeting for thering is the PDU session information of downlink data transmission demand to indicate Talk about, receive the PDU session of the PDU session information instruction of downlink data notification, the PDU session restoration result letter of first network unit The PDU session restoration result letter of breath instruction is successfully recovered and third network element requests restore PDU session, first network unit Cease the PDU session, first network unit for indicating to be successfully recovered and thering is the PDU session information of downlink data transmission demand to indicate PDU session restoration result information instruction be successfully recovered and receive downlink data notification PDU session information instruction PDU session, In the PDU session that PDU session restoration result information instruction restore with terminal request and first network unit is successfully recovered At least one of.

9th processing submodule, the PDU session and first for the PDU session information instruction that can be used for discharging terminal request Network element requests discharge in the PDU session of PDU session information instruction at least one of, execute following operation: release terminal and/ Or second network element requests release PDU session；

Tenth processing submodule, the PDU session and first for the PDU session information instruction that can be used for hanging up terminal request Network element requests hang up in the PDU session of PDU session information instruction at least one of, execute following operation: held terminal and/ Or second network element requests release PDU session；

11st processing submodule can be used for the extensive of the PDU session restoration result information instruction to first network unit The PDU session to fail again can execute at least one in following operation:

The context of the PDU session of hang-up recovery failure,

The context of the PDU session of deletion recovery failure,

Wherein, the network equipment 600 can also include:

First generation module can be used for generating the PDU session restoration result information of the second network unit；Wherein, second The PDU session restoration result information of network unit may include at least one in following information: the second network unit reverts to The PDU meeting that the PDU session information of function, the second network unit restore the PDU session information of failure, the second network element requests restore Talk about the PDU session information that information, the PDU session information of the second network element requests release, the second network element requests are hung up；

Second sending module can be used for the PDU session restoration result information of the second network unit being sent to the first net Network unit and/or terminal is sent to by first network unit.

Wherein, the PDU session information that the second network request restores may include at least one: downlink data transmission needs The PDU session that the PDU session information asked, the PDU session for receiving downlink data notification, third network element requests restore；

The PDU session information that second network request is hung up may include at least one: the failure of the second network recovery PDU session, first network unit are successfully recovered but the PDU session of the second network recovery failure, first network unit and terminal are extensive The PDU session of multiple success but the failure of the second network recovery；

The PDU session information of second network request release may include at least one: the failure of the second network recovery PDU session, first network unit are successfully recovered but the PDU session of the second network recovery failure, first network unit and terminal are extensive The PDU session of multiple success but the failure of the second network recovery.

Wherein, third processing module 620 can also include:

12nd processing submodule can be used for when operation requests information being the PDU meeting that third network element requests restore Under words information, third network element requests discharge PDU session information, the PDU session information that third network element requests are hung up, have The PDU session information of row data transfer demands and receive in the PDU session information of downlink data notification at least one of when, pass through Paging request or notification message send the PDU session information third net that third network element requests restore to first network unit Network unit requests discharge PDU session information, the PDU session information that third network element requests are hung up, have downlink data transmission to need At least one of in the PDU session information asked and the PDU session information for receiving downlink data notification.

Wherein, first network unit may include at least one: wireless access network equipment, wireless access network node, Wireless access network functional unit, centralized unit CU, distributed unit DU, base station, eNB, gNB, N3IWF, AC, access point AP equipment Or WLAN WLAN node；

Second network unit may include at least one: equipment of the core network, core net node, core net function list Member, access management function AMF, conversation management functional SMF, gateway SGW, PDN Gateway PGW, is used mobile management entity MME Family plane function UPF；

Third network unit may include at least one: equipment of the core network, core net node, core net function list Member, access management function AMF, conversation management functional SMF, gateway SGW, PDN Gateway PGW, is used mobile management entity MME Family plane function UPF.

The network equipment of the embodiment of the present invention, by the operation requests information for obtaining Packet Data Unit PDU session information； According to operation requests information, PDU Dialog processing is carried out.Wherein, operation requests information may include at least one in following information : operation requests information may include at least one in following information: the PDU session information of terminal request recovery, terminal are asked Seek the PDU session restoration result letter of the PDU session information of release, the PDU session information that terminal request is hung up, first network unit Breath, the PDU session information of third network element requests recovery, third network element requests discharge PDU session information, third network The PDU session information of unit requests hang-up has the PDU session information of downlink data transmission demand and receives downlink data notification PDU session information.In this way, by the mutual cooperation between terminal, first network unit and the second network unit, the end being suspended End can be carried out the recovery of PDU session when connecting recovery by the PDU session information for needing to restore in operation requests information, from And the resource of wireless access network is saved, reduce signaling overheads.

In order to preferably realize above-mentioned purpose, the embodiments of the present invention also provide a kind of network equipment, the network equipments Including processor, memory and it is stored in the computer program that can be run on memory and on a processor, processor executes The step in conversation controlling method as above is realized when computer program.Inventive embodiments additionally provide a kind of computer-readable deposit Storage media is stored with computer program on the computer readable storage medium, realizes such as when computer program is executed by processor On conversation controlling method the step of.

Specifically, the embodiments of the present invention also provide a kind of network equipments.As shown in fig. 7, the network equipment 700 can be with It include: antenna 71, radio-frequency unit 72, base band device 73.Antenna 71 is connect with radio-frequency unit 72.In the upstream direction, radio frequency fills It sets 72 and information is received by antenna 71, received information is sent to base band device 73 and is handled.In the downstream direction, base band Device 73 handles the information to be sent, and is sent to radio-frequency unit 72, radio-frequency unit 72 to the information received at It is sent after reason by antenna 71.

Above-mentioned frequency band processing unit can be located in base band device 73, and the method that the network equipment executes in above embodiments can To realize in base band device 73, which includes processor 74 and memory 75.

Base band device 73 for example may include at least one baseband board, and multiple chips are provided on the baseband board, such as Fig. 7 institute Show, one of chip is, for example, processor 74, is connect with memory 75, to call the program in memory 75, more than execution Network device operation shown in embodiment of the method.

The base band device 73 can also include network interface 76, for 72 interactive information of radio-frequency unit, the interface is for example For common public radio interface (common public radio interface, abbreviation CPRI).

Here processor can be a processor, be also possible to the general designation of multiple processing elements, for example, the processor It can be CPU, be also possible to ASIC, or be arranged to implement one or more collection of method performed by the above network equipment At circuit, such as: one or more microprocessors DSP, or, one or more on-site programmable gate array FPGA etc..Storage Element can be a memory, be also possible to the general designation of multiple memory elements.

Memory 75 can be volatile memory or nonvolatile memory, or may include that volatile and non-volatile is deposited Both reservoirs.Wherein, nonvolatile memory can be read-only memory (Read-Only Memory, abbreviation ROM), may be programmed Read-only memory (Programmable ROM, abbreviation PROM), Erasable Programmable Read Only Memory EPROM (Erasable PROM, letter Claim EPROM), electrically erasable programmable read-only memory (Electrically EPROM, abbreviation EEPROM) or flash memory.Volatibility Memory can be random access memory (Random Access Memory, abbreviation RAM), be used as External Cache. By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random access memory (Static RAM, abbreviation SRAM), dynamic random access memory (Dynamic RAM, abbreviation DRAM), Synchronous Dynamic Random Access Memory (Synchronous DRAM, abbreviation SDRAM), double data speed synchronous dynamic RAM (Double Data Rate SDRAM, abbreviation DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, referred to as ESDRAM), synchronized links dynamic random access memory (Synchlink DRAM, abbreviation SLDRAM) and direct rambus with Machine accesses memory (Direct Rambus RAM, abbreviation DRRAM).Memory 75 described herein is intended to include but unlimited In the memory of these and any other suitable type.

Specifically, the network equipment of the embodiment of the present invention further include: be stored on memory 75 and can be on processor 74 The computer program of operation, processor 74 call the computer program in memory 75 to execute each module shown in Fig. 2, Fig. 4 or Fig. 6 The method of execution.

The network equipment in the embodiment of the present invention, the operation requests by obtaining Packet Data Unit PDU session information are believed Breath；According to operation requests information, PDU Dialog processing is carried out.In this way, passing through terminal, first network unit and the second network unit Between mutual cooperation, the terminal being suspended connect restore when, can be by the PDU session for needing to restore in operation requests information Information carries out the recovery of PDU session, to save the resource of wireless access network, reduces signaling overheads.

Above embodiments describe conversation controlling method of the invention from network equipment side, below the present embodiment will combine it is attached Figure is described further the conversation controlling method of terminal side.

As shown in figure 8, the conversation controlling method of the embodiment of the present invention, is applied to terminal side, specifically includes the following steps:

Step 81: the operation requests information of Packet Data Unit PDU session information is sent to first network unit.

Wherein, operation requests information may include at least one: the PDU session information of terminal requesting itself, second The PDU session information of PDU session information, first network request recovery that network request restores.

Step 82: receiving first network unit according to the PDU session that operation requests information is sent and operate response message information.

Optionally, PDU session operation response message information includes: that confirmation restores and/or confirm irreclaimable PDU session Information.

Step 83: response message information being operated according to PDU session, PDU session is handled.

Specifically, the information for restoring and/or confirming irreclaimable PDU session according to confirmation, handles PDU session The step of, it may include at least one: according to the information for the PDU session that confirmation restores, restoring the PDU meeting that confirmation restores Words；According to the information for confirming irreclaimable PDU session, irreclaimable PDU session is discharged or hung up.

It in one embodiment, can also include: the PDU session information for generating request and restoring before step 81.? After generating the PDU session information that request restores, the PDU session information that request restores is sent to first network unit, specifically may be used It is sent by RRC recovery request.

It in one embodiment, can also include: that receive the request that first network unit is sent extensive before step 81 Multiple PDU session information.Specifically, the PDU session letter that the request that first network unit is sent restores can be received by paging Breath.

It in one embodiment, can also include: that the second network is received by first network unit before step 81 The PDU session information that the request that unit is sent restores.Specifically, first network unit is sent second can be received by paging The PDU session information that network element requests restore.

Optionally, it may also include that before step 81 and receive the PDU meeting that second unit request restores by notification message Talk about information.

It optionally, can also include: optionally, to restore or confirming irreclaimable according to confirmation after step 81 The information of PDU session can also include: the terminal generated after PDU Dialog processing after the step of handling PDU session PDU session restoration result information and feed back to first network unit.Wherein, the PDU restoration result information of terminal may include At least one of in following information: PDU session information that terminal is successfully recovered, terminal restore the PDU session information of failure, terminal Discharge the PDU session information of successful PDU session information and terminal hang-up.

It is worth noting that above-mentioned PDU session information may include at least one in following information: PDU session identification Information restores instruction information, restores instruction information, hangs up instruction information, release instruction information, PDU session identification bit map QoS flow information in information and PDU session.Bit position in PDU session identification bit map represents PDU session identification, certain Bit position indicates whether the PDU session for restoring to indicate that the bit represents restores.

Above-mentioned first network unit may include at least one: wireless access network equipment, wireless access network node, nothing Line access functional unit, distributed unit DU, base station, eNB, gNB, N3IWF, access control node AC, connects centralized unit CU Access point AP equipment or WLAN WLAN node；

Second network unit may include at least one: equipment of the core network, core net node, core net function list Member, access management function AMF, conversation management functional SMF, gateway SGW, PDN Gateway PGW, is used mobile management entity MME Family plane function UPF.

The embodiment of the present invention passes through the cooperation of terminal, first network unit and the second network unit, and the terminal being suspended exists When connection restores, PDU session can be restored on demand, save the resource of wireless access network, reduce signaling overheads.

Above embodiments describe the conversation controlling method under different scenes, below in conjunction with attached drawing to corresponding end End is described further.

As shown in figure 9, the terminal 900 of the embodiment of the present invention, is able to achieve in above-described embodiment to first network unit and sends The details for the Packet Data Unit PDU session information method restored is requested, and reaches identical effect, which can wrap Include following functions module:

Third sending module 910 can be used for sending the behaviour of Packet Data Unit PDU session information to first network unit Make solicited message；

Second receiving module 920 can be used for receiving the first net that first network unit is sent according to operation requests information The PDU session restoration result information of network unit；

Fourth processing module 930 can be used for the PDU session restoration result information according to first network unit, to PDU meeting Words are handled.

Wherein, operation requests information includes at least one:

PDU session information, the first network that PDU session information, the second network request of terminal requesting itself restore are requested The PDU session information of recovery.

Wherein, terminal 900 can also include at least one:

Second generation module can be used for generating the PDU session information that request restores；

Third receiving module can be used for receiving the PDU session information that the request of first network unit transmission restores；

4th sending module can be used for receiving what the request that the second network unit is sent restored by first network unit PDU session information.

Wherein, the PDU session restoration result information of first network unit may include: to confirm that recovery and/or confirmation cannot The PDU session information of recovery；

Fourth processing module 930 may include at least one:

13rd processing submodule, can be used for restoring according to confirmation and/or confirming the letter of irreclaimable PDU session Breath, handles PDU session.

Optionally, the 13rd processing submodule can be used for: according to the information for the PDU session that confirmation restores, restore confirmation The PDU session of recovery；

According to the information for confirming irreclaimable PDU session, irreclaimable PDU session is discharged or hung up.

Wherein, fourth processing module 930 can also include:

Submodule is fed back, the PDU session restoration result information of the terminal after can be used for generating PDU Dialog processing is simultaneously fed back To first network unit；Wherein, the PDU restoration result information of terminal may include at least one in following information: terminal is extensive Multiple successful PDU session information, terminal restore the PDU session information of failure, terminal discharges successful PDU session information and terminal The PDU session information of hang-up.

Wherein, PDU session information may include at least one in following information: PDU session label information restores instruction Information restores instruction information, hangs up instruction information, release instruction information, PDU session identification bit cartographic information and PDU session Middle QoS flow information.

Wherein, first network unit may include at least one: wireless access network equipment, wireless access network node, Wireless access network functional unit, centralized unit CU, distributed unit DU, base station, eNB, gNB, N3IWF, access control node AC, Access point AP equipment or WLAN WLAN node；

It is worth noting that the embodiment of the present invention passes through the cooperation of terminal, first network unit and the second network unit, quilt Held terminal can restore PDU session when connecting recovery on demand, save the resource of wireless access network, reduce signaling overheads.

It should be noted that it should be understood that the division of the above network equipment and the modules of terminal is only a kind of logic function The division of energy, can completely or partially be integrated on a physical entity in actual implementation, can also be physically separate.And these Module can be realized all by way of processing element calls with software；It can also all realize in the form of hardware；May be used also It is realized in the form of part of module calls software by processing element, part of module passes through formal implementation of hardware.For example, determining Module can be the processing element individually set up, and also can integrate and realize in some chip of above-mentioned apparatus, in addition, can also To be called and be held by some processing element of above-mentioned apparatus in the memory for being stored in above-mentioned apparatus in the form of program code The function of row module determined above.The realization of other modules is similar therewith.Furthermore these modules completely or partially can integrate Together, it can also independently realize.Here processing element can be a kind of integrated circuit, the processing capacity with signal.In reality During now, each step of the above method or the above modules can pass through the integration logic electricity of the hardware in processor elements The instruction of road or software form is completed.

For example, the above module can be arranged to implement one or more integrated circuits of above method, such as: One or more specific integrated circuits (Application Specific Integrated Circuit, abbreviation ASIC), or, One or more microprocessors (digital signal processor, abbreviation DSP), or, one or more scene can compile Journey gate array (Field Programmable Gate Array, abbreviation FPGA) etc..For another example, when some above module passes through place When managing the form realization of element scheduler program code, which can be general processor, such as central processing unit (Central Processing Unit, abbreviation CPU) or it is other can be with the processor of caller code.For another example, these modules It can integrate together, realized in the form of system on chip (system-on-a-chip, abbreviation SOC).

In order to preferably realize above-mentioned purpose, further, a kind of terminal of Figure 10 each embodiment to realize the present invention Hardware structural diagram, which includes but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, The components such as processor 1010 and power supply 1011.It will be understood by those skilled in the art that terminal structure shown in Figure 10 is not The restriction of structure paired terminal, terminal may include perhaps combining certain components or difference than illustrating more or fewer components Component layout.In embodiments of the present invention, terminal includes but is not limited to mobile phone, tablet computer, laptop, palm electricity Brain, car-mounted terminal, wearable device and pedometer etc..

Wherein, radio frequency unit 101 can be used under the control of processor 1010, sends and requests to first network unit The Packet Data Unit PDU session information of recovery.

Wherein, requesting the PDU session information restored may include at least one:

Specifically, processor 1010 can be used for sending the Packet Data Unit that request restores to first network unit Before PDU session information, at least one of is executed:

Generate the PDU session information that request restores；

Receive the PDU session information that the request that first network unit is sent restores；

The PDU session information that the request that the second network unit is sent restores is received by first network unit；

By paging, the PDU session information that the request that first network unit is sent restores is received；

By paging, the PDU session information that the second network element requests that first network unit is sent restore is received；

By notification message, the PDU session information that second unit request restores is received.

Specifically, processor 1010 can be also used for: receive the PDU session letter that the confirmation of first network unit feedback restores Cease and/or confirm the information of irreclaimable PDU session；

The information for restoring or confirming irreclaimable PDU session according to confirmation, handles PDU session.

Specifically, processor 1010 can be also used for: the information for the PDU session that can be restored according to confirmation restores confirmation The PDU session of recovery；

Specifically, processor 1010 is also used to: the PDU session restoration result information of the terminal after generating PDU Dialog processing And feed back to first network unit；Wherein, the PDU restoration result information of terminal may include at least one in following information: PDU session information, the successful PDU session information of terminal release of PDU session information, terminal recovery failure that terminal is successfully recovered The PDU session information hung up with terminal.

Specifically, PDU session information may include at least one in following information: PDU session label information refers to Show information, restores instruction information, hangs up instruction information, release instruction information, PDU session identification bit cartographic information and PDU meeting QoS flow information in words.

Specifically, above-mentioned first network unit may include at least one: wireless access network equipment, wireless access network Node, wireless access network functional unit, centralized unit CU, distributed unit DU, base station, eNB, gNB, N3IWF, access control section Point AC, access point AP equipment or WLAN WLAN node；

Specifically, terminal generates PDU session recovery demand；

Terminal sends the PDU session information that request restores；

Terminal sends the PDU session information that request restores to first network unit.

Further, terminal receives the PDU session information that confirmation restores；

Terminal carries out PDU recovery operation according to the PDU session information that confirmation restores.

Before receiving the PDU session information that confirmation restores, terminal also sends the PDU session information that request restores.

It should be understood that the embodiment of the present invention in, radio frequency unit 101 can be used for receiving and sending messages or communication process in, signal Send and receive, specifically, by from base station downlink data receive after, to processor 1010 handle；In addition, by uplink Data are sent to base station.In general, radio frequency unit 101 includes but is not limited to antenna, at least one amplifier, transceiver, coupling Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 101 can also by wireless communication system and network and other set Standby communication.

Terminal provides wireless broadband internet by network module 102 for user and accesses, and such as user is helped to receive and dispatch electricity Sub- mail, browsing webpage and access streaming video etc..

Audio output unit 103 can be received by radio frequency unit 101 or network module 102 or in memory 109 The audio data of storage is converted into audio signal and exports to be sound.Moreover, audio output unit 103 can also provide and end The relevant audio output of specific function (for example, call signal receives sound, message sink sound etc.) that end 100 executes.Sound Frequency output unit 103 includes loudspeaker, buzzer and receiver etc..

Input unit 104 is for receiving audio or video signal.Input unit 104 may include graphics processor (Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out Reason.Treated, and picture frame may be displayed on display unit 106.Through graphics processor 1041, treated that picture frame can be deposited Storage is sent in memory 109 (or other storage mediums) or via radio frequency unit 101 or network module 102.Mike Wind 1042 can receive sound, and can be audio data by such acoustic processing.Treated audio data can be The format output that mobile communication base station can be sent to via radio frequency unit 101 is converted in the case where telephone calling model.

Terminal 100 further includes at least one sensor 105, such as optical sensor, motion sensor and other sensors. Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ambient light Light and shade adjusts the brightness of display panel 1061, and proximity sensor can close display panel when terminal 100 is moved in one's ear 1061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (generally three axis) and add The size of speed can detect that size and the direction of gravity when static, can be used to identify terminal posture (such as horizontal/vertical screen switching, Dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；Sensor 105 can be with Including fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, hygrometer, thermometer, Infrared sensor etc., details are not described herein.

Display unit 106 is for showing information input by user or being supplied to the information of user.Display unit 106 can wrap Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 1061.

User input unit 107 can be used for receiving the number or character information of input, and generates and set with the user of terminal It sets and the related key signals of function control inputs.Specifically, user input unit 107 include touch panel 1071 and other Input equipment 1072.Touch panel 1071, also referred to as touch screen, collect user on it or nearby touch operation (such as User is using any suitable objects or attachment such as finger, stylus on touch panel 1071 or near touch panel 1071 Operation).Touch panel 1071 may include both touch detecting apparatus and touch controller.Wherein, touch detecting apparatus is examined The touch orientation of user is surveyed, and detects touch operation bring signal, transmits a signal to touch controller；Touch controller from Touch information is received on touch detecting apparatus, and is converted into contact coordinate, then gives processor 1010, receives processor 1010 orders sent simultaneously are executed.Furthermore, it is possible to a variety of using resistance-type, condenser type, infrared ray and surface acoustic wave etc. Type realizes touch panel 1071.In addition to touch panel 1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can include but is not limited to physical keyboard, function key (such as volume control button, Switch key etc.), trace ball, mouse, operating stick, details are not described herein.

Further, touch panel 1071 can be covered on display panel 1061, when touch panel 1071 is detected at it On or near touch operation after, send processor 1010 to determine the type of touch event, be followed by subsequent processing 1010 basis of device The type of touch event provides corresponding visual output on display panel 1061.Although in Figure 10, touch panel 1071 with Display panel 1061 is the function that outputs and inputs of realizing terminal as two independent components, but in some embodiments In, touch panel 1071 and display panel 1061 can be integrated and be realized the function that outputs and inputs of terminal, specifically herein not It limits.

Interface unit 108 is the interface that external device (ED) is connect with terminal 100.For example, external device (ED) may include it is wired or Wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, memory card port, For connecting port, the port audio input/output (I/O), video i/o port, ear port of the device with identification module Etc..Interface unit 108 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) and will One or more elements that the input received is transferred in terminal 100 or can be used for terminal 100 and external device (ED) it Between transmit data.

Memory 109 can be used for storing software program and various data.Memory 109 can mainly include storing program area The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as Audio data, phone directory etc.) etc..In addition, memory 109 may include high-speed random access memory, it can also include non-easy The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.

Processor 1010 is the control centre of terminal, using the various pieces of various interfaces and the entire terminal of connection, By running or execute the software program and/or module that are stored in memory 109, and calls and be stored in memory 109 Data, execute terminal various functions and processing data, thus to terminal carry out integral monitoring.Processor 1010 may include one A or multiple processing units；Preferably, processor 1010 can integrate application processor and modem processor, wherein application The main processing operation system of processor, user interface and application program etc., modem processor mainly handles wireless communication.It can With understanding, above-mentioned modem processor can not also be integrated into processor 1010.

Terminal 100 can also include the power supply 1011 (such as battery) powered to all parts, it is preferred that power supply 1011 can With logically contiguous by power-supply management system and processor 1010, thus charged, discharged by power-supply management system realization management, And the functions such as power managed.

In addition, terminal 100 includes some unshowned functional modules, details are not described herein.

Preferably, the embodiment of the present invention also provides a kind of terminal, including processor 1010, and memory 109 is stored in storage On device 109 and the computer program that can run on processor 1010, the computer program are realized when being executed by processor 1010 Each process of above-mentioned conversation controlling method embodiment, and identical technical effect can be reached, it is no longer superfluous here to avoid repeating It states.Wherein, terminal can be wireless terminal and be also possible to catv terminal, wireless terminal can be directed to user provide voice and/ Or the equipment of other business datum connectivity, there is the handheld device of wireless connecting function or be connected to wireless modulation-demodulation Other processing equipments of device.Wireless terminal can be through wireless access network (Radio Access Network, abbreviation RAN) and one Or multiple cores net is communicated, wireless terminal can be mobile terminal, such as mobile phone (or being " honeycomb " phone) and tool There is the computer of mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted movement Device, they exchange language and/or data with wireless access network.For example, personal communication service (Personal Communication Service, abbreviation PCS) phone, wireless phone, Session initiation Protocol (Session Initiation Protocol, abbreviation SIP) phone, wireless local loop (Wireless Local Loop, abbreviation WLL) is stood, individual digital helps Manage equipment such as (Personal Digital Assistant, abbreviation PDA).Wireless terminal is referred to as system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), movement station (Mobile Station), mobile station (Mobile), distant station (Remote Station), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), user equipment (User Device Or User Equipment), it is not limited thereto.

The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium Calculation machine program, the computer program realize each process of above-mentioned conversation controlling method embodiment, and energy when being executed by processor Reach identical technical effect, to avoid repeating, which is not described herein again.Wherein, computer readable storage medium is deposited Ru read-only Reservoir (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), Magnetic or disk etc..

Describe the session control of the embodiment of the present invention from first network unit, the second network unit and terminal respectively above The Different treatments of method, below the present embodiment by by taking PDU session recovery operation as an example to the session control under different scenes Method is described further.

As shown in figure 11, the network architecture of the embodiment of the present invention includes: terminal, first network unit (with wireless access network For), the second network unit (by taking core net as an example), wherein core net includes access management function AMF, conversation management functional SMF and user plane functions.Wireless access network receives the PDU session information that the request that UE is sent restores, and requests to restore according to UE PDU session restore, wherein restore all PDU meetings of UE under the PDU session case of the preferential UE request of wireless access network The PDU session information that UE request restores is sent to core net by words, hereafter, wireless access network.

First embodiment

UE sends the PDU session information that request restores to wireless access network, and wireless access network can request to restore according to UE The PDU session result notice core net being restored, and PDU session is restored carry out PDU session recovery.Core net receives nothing The result that the PDU session that line access is sent restores carries out PDU session recovery, and the result that core net PDU session restores is led to Know wireless access network.UE carries out PDU session recovery according to the PDU session that the confirmation of wireless access network restores.

Specifically, which is recovery operation, and PDU session recovery sequence is that wireless access network first restores with UE, core Net side carries out the recovery of PDU session further according to the PDU session restoration result of UE and wireless access network.Its advantage is that completing UE and nothing After the PDU session of line access side restores, the i.e. transmittable upstream data of UE.In this embodiment, wireless access network is according to UE The PDU session information that request restores carries out PDU session recovery.As shown in figure 12, the embodiment specifically includes the following steps:

Step 121:UE sends RRC recovery request to wireless access network.Here, RRC recovery request corresponds to aforesaid operations and asks Seek information.Optionally, at least one can be indicated in operation requests information: requesting the information of the PDU session restored.

PDU session to request recovery is not belonging to, wireless access network can continue to hang up or discharged.

Wireless access network can carry out PDU session recovery operation, including at least one according to the request of UE:

Restore the context of specified PDU session,

Restore specified PDU session mapping radio bearer (such as data resource bearing (Data Resource Bearer, DRB) etc.),

For specified PDU session distribution or radio bearer (such as DRB) is mapped,

Restore the connection between wireless access network and core net about UE.

It in some embodiments, is not that the PDU session of each UE request can be assigned since radio resource is in short supply Radio resource.So wireless access network can will confirm that the information of the PDU session of recovery is sent to UE.

Additional, at least one can be indicated in request: requesting the PDU of the PDU session information hung up, request release Session information.

Step 122: wireless access network sends RRC to UE and restores, and carries PDU session restoration result information in RRC recovery, Optionally, at least one is indicated in RRC recovery: confirming PDU session information, the irreclaimable PDU session of confirmation of recovery Information.

UE is carried out according to " the PDU session information and/or the irreclaimable PDU session information of confirmation that confirmation restores " of instruction PDU session restores.

Step 123:UE sends RRC to wireless access network and restores to complete.Optionally, restore to indicate in completion in RRC At least one: the information for the PDU session that UE is successfully recovered, the side UE restore the information of the PDU session of failure.

In some embodiments, due to unpredictable, the side UE may not be that can restore PDU session.It needs UE returns to the restoration result of the PDU session on the PDU session restoration result validation of information UE of UE.

Step 124: wireless access network sends recovery request to access mobile management function.

Optionally, the PDU session restoration result information that wireless access network is carried in recovery request, can specifically indicate At least one: the information for the PDU session being successfully recovered, the information for restoring the PDU session to fail.The PDU meeting being successfully recovered The information for the PDU session that words information instruction wireless access network restores according to UE request confirmation in UE and wireless access on the net.

Step 125: access mobile management function sends recovery request to the conversation management functional of the PDU session of UE.

Optionally, can indicate at least one in the request: the information for the PDU session being successfully recovered restores failure PDU session information.The PDU session information instruction wireless access network being successfully recovered connects according to UE request confirmation in UE and wirelessly Enter the information of the PDU session restored on the net.

Wherein,

PDU session to the UE being successfully recovered, conversation management functional can execute at least one: restore the PDU of UE Session context the, by (transmission that the PDU session that i.e. wireless access network is UE distributes of the downlink transfer address of the PDU session of UE Location) user plane functions are sent, the PDU session state setting of UE is activation by the PDU session to user plane functions activation UE.

The PDU session for the UE that PDU session and/or request to the UE for restoring failure are hung up, conversation management functional can be held It goes at least one: continuing to hang up the PDU session of UE, delete the PDU session of UE, request user plane functions delete the PDU of UE Session.In some embodiments, continue to hang up or delete the original that the PDU session for restoring the UE of failure depends on restoring failure Cause.For example recovery failure caused by wireless access net side inadequate resource can continue to hang up.It for example is the PDU session that request restores It is that unknown PDU session specification information is inconsistent, it should delete.

PDU session to the UE that request is hung up, conversation management functional can execute at least one: continue to hang up UE PDU session.

To the PDU session information of request release, conversation management functional can execute at least one: delete the PDU of UE Session, request user plane functions delete the PDU session of UE.

Step 126: conversation management functional is sent to access mobile management function restores response, and recovery response correspondence is above-mentioned The PDU session restoration result information of second network unit.Optionally, at least one can be indicated in the request: being reverted to The information of the PDU session of function, the information for restoring the PDU session to fail.The PDU session information instruction session management function being successfully recovered It can be in the information for the PDU session that core-network side is successfully recovered.

Step 127: access mobile management function is sent to wireless access network restores response, corresponding above-mentioned second network unit PDU session restoration result information.Optionally, at least one can be indicated in the request: the PDU session being successfully recovered Information, the information for restoring the PDU session to fail.The PDU session information instruction conversation management functional being successfully recovered is in core-network side The information for the PDU session being successfully recovered.

Information to the PDU session for restoring failure, wireless access network can execute following one: hang up PDU session or more Context, the releasing bearing resource, the uplink address for saving PDU session of the radio bearer of mapping that is literary, hanging up PDU session The PDU session state setting of UE is hang-up, request UE by (the transmission address that the PDU session that i.e. user plane functions are UE distributes) It hangs up PDU session, delete PDU session context, request UE deletion PDU session.

Second embodiment

The embodiment is recovery operation.Recovery sequence is that wireless access net side and UE first restore PDU session；Core-network side is again Restore PDU session according to UE and the PDU session restoration result of wireless access side.Advantage is completed between UE and wireless access network The i.e. transmittable upstream data of UE after PDU session restores.

In the present embodiment, network is believed according to the PDU session of the UE PDU session information requested and the second network element requests Breath, the PDU session information if any data transfer needs are restored.As shown in figure 13, the embodiment specifically includes the following steps:

Step 131:UE sends RRC recovery request to wireless access network.Optionally, it can indicate in the request at least following One of: request the information of the PDU session restored.

Restore the context of specified PDU session,

Restore the radio bearer (such as DRB) of specified PDU session mapping,

For specified PDU session distribution or radio bearer (such as DRB) is mapped,

Restore the connection between wireless access network and core net about UE.

It in some embodiments, is not that the PDU session of each UE request can be assigned since radio resource is in short supply Radio resource.So wireless access network needs can will confirm that the information of the PDU session of recovery is sent to UE.

Step 132: wireless access network sends RRC to UE and restores, and optionally, indicates at least one in RRC recovery: really Recognize the information of the PDU session of recovery, the information of the irreclaimable PDU session of confirmation.

UE is according to " information for the PDU session that confirmation restores and/or the information of the irreclaimable PDU session of confirmation " of instruction Carry out PDU session recovery.

Step 133:UE sends RRC to wireless access network and restores to complete.Optionally, restore to indicate in completion in RRC At least one: the information for the PDU session that UE is successfully recovered, the side UE restore the information of the PDU session of failure.

In some embodiments, due to unpredictable, the side UE may not be that can restore PDU session.It needs The PDU session restoration result of UE return UE.

Step 134: wireless access network sends recovery request to access mobile management function.

Step 135: access mobile management function sends recovery request to the conversation management functional of the PDU session of UE.

PDU session to there is downlink data transmission demand (such as receiving downlink data notification), conversation management functional can be held It goes at least one: restoring the PDU session of UE, send the information of the PDU session restored about the requirement of the PDU session.

Step 136: conversation management functional is sent to access mobile management function restores response.Optionally, in the request may be used To indicate at least one: the information for the PDU session being successfully recovered, information, the core network requests for restoring the PDU session to fail The information of the PDU session of recovery.What the PDU session information instruction conversation management functional being successfully recovered was successfully recovered in core-network side The information of PDU session.It is required that the PDU session that the information instruction conversation management functional extra demand of the PDU session restored restores Information.

Step 137: access mobile management function is sent to wireless access network restores response.It optionally, in the request can be with Indicate at least one: the information for the PDU session being successfully recovered, information, the core network requests of the PDU session for restoring failure are extensive The information of multiple PDU session.What the PDU session information instruction conversation management functional being successfully recovered was successfully recovered in core-network side The information of PDU session.

It is required that the information of the PDU session restored, wireless access network can execute following one: restore UE PDU session, UE is requested to restore PDU session.It can include the specified PDU session request UE. restored by RRC reconfiguration message

According to the information for requiring the PDU session restored, wireless access network can execute following one:

Restore the context of specified PDU session,

Restore the radio bearer (such as DRB) of specified PDU session mapping,

For specified PDU session distribution or radio bearer (such as DRB) is mapped,

Restore the connection between wireless access network and core net about UE.

The information for requiring release/hang-up PDU session is sent to UE.

Optionally, step 138: wireless access network sends RRC reconfiguration request message to UE.It optionally, can be in message Information including requiring the PDU session restored.

The information for the PDU session that UE restores according to the requirement received carries out the recovery of specified PDU session.

Optionally, step 139:UE returns to RRC reconfiguration message response message to wireless access network.Optionally, in message In in can indicate at least one: the information of the PDU session that UE is successfully recovered, the side UE restore the letter of the PDU session of failure Breath.

3rd embodiment

The embodiment is recovery operation, and PDU session recovery sequence is that wireless access net side and UE first restore PDU session, core The PDU session information that heart net side is restored further according to the request of the PDU session restoration result and UE of UE and wireless access network carries out The recovery of PDU session.Its advantage is that after the PDU session of completion UE and wireless access net side restores, the i.e. transmittable upstream data of UE. In the present embodiment, wireless access network is attempted to restore the PDU session of all hang-up of UE, preferentially restores UE in inadequate resource and asks The PDU session information asked.Etc. after recovery requests have arrived conversation management functional, PDU that conversation management functional network is requested according to UE Session information and there is the PDU session information of data transfer needs to be restored.Wireless access network is final according to conversation management functional The information for the PDU session for needing to restore, the resource of the unwanted PDU session of hang-up/release.As shown in figure 14, which has Body the following steps are included:

Step 141:UE sends RRC recovery request to wireless access network.Optionally, UE can be in step 141 or step At least one is indicated in 143: the information for the PDU session that UE request restores.

Optionally, wireless access network carries out PDU session recovery operation, may include at least one:

Restore the context of the PDU session of the UE hung up,

Restore the radio bearer (such as DRB) of the UEPDU session hung up mapping,

PDU session for UE distributes or mapping radio bearer (such as DRB),

Restore the connection between wireless access network and core net about UE.

It in some embodiments, is not that the PDU session of each UE request can be assigned since radio resource is in short supply Radio resource.Wireless access network can preferentially restore the PDU session of UE request activation.In addition, wireless access network can will confirm that The information of the PDU session of recovery is sent to UE.

Step 142: wireless access network sends RRC to UE and restores, and optionally, indicates at least one in RRC recovery: really Recognize the information of the PDU session of recovery.In some embodiments, confirm that the PDU session information of recovery can be wireless access side The PDU session being successfully recovered.

UE carries out PDU session recovery according to " information for the PDU session that confirmation restores " of instruction.

Step 143:UE sends RRC to wireless access network and restores to complete.Optionally, restore to indicate in completion in RRC The PDU session restoration result information of UE includes at least one: the information for the PDU session that UE is successfully recovered, the side UE restore to lose The information of the PDU session lost.

In some embodiments, due to unpredictable, some PDU sessions may restore to fail in the side UE.It is right The PDU session of failure is restored in the side UE, and wireless access network can execute following one: core net is requested in release/hang-up PDU session Release/hang-up PDU session.

Step 144: wireless access network sends recovery request to access mobile management function.

Optionally, the PDU session restoration result information and terminal request for carrying wireless access network in the request are restored PDU session information, can specifically indicate at least one: the information of the PDU session being successfully recovered, the PDU for restoring failure The information for the PDU session that the information of session, UE request restore.Be successfully recovered PDU session information instruction wireless access network according to The information for the PDU session that UE request confirmation restores on the net in UE and wireless access.

Step 145: access mobile management function sends recovery request to the conversation management functional of the PDU session of UE.

Optionally, can indicate at least one in the request: the information for the PDU session being successfully recovered restores failure PDU session information, UE request restore PDU session information.The PDU session information being successfully recovered can be wireless access The information for the PDU session that net and the side UE are all successfully recovered.

1, wireless access net side is successfully recovered PDU session and is UE request activation PDU session and 2, wirelessly connect Enter the PDU session that net side is successfully recovered and has at least one in the PDU session of downlink data transmission demand, session management function Can execute at least one: restore the PDU session context of UE, by the downlink transfer address of the PDU session of UE (i.e. without The transmission address that the PDU session that line access is UE distributes) user plane functions are sent, the PDU meeting to user plane functions activation UE The PDU session state setting of UE is activation by words.In some embodiments, there is the PDU session of downlink data transmission demand not One is scheduled in the PDU session of UE request activation.

Wireless access net side is successfully recovered but neither the PDU session of UE request activation does not have downlink data transmission again The PDU session of demand, conversation management functional can execute at least one: hang-up/release PDU session, request user's facial canal Reason function is hung up, and/discharging PDU session, request wireless access network is hung up/discharges PDU session, request UE hangs up/discharge PDU session.

PDU session to the UE that request is hung up, conversation management functional can execute at least one: continue to hang up PDU Session.

To the PDU session information of request release, conversation management functional can execute at least one: release PDU meeting Words, request user plane functions discharge PDU session.

Step 146: conversation management functional is sent to access mobile management function restores response.Optionally, in the request may be used To indicate at least one: the information of the PDU session being successfully recovered, restore failure PDU session information, require release/ The information of the PDU session of hang-up.The PDU session information being successfully recovered can indicate the PDU session that core-network side is successfully recovered Information.It is required that the information instruction conversation management functional of release/hang-up PDU session requires the letter of release/recovery PDU session Breath.

Step 147: access mobile management function is sent to wireless access network restores response.It optionally, in the request can be with Indicate at least one: the information for the PDU session being successfully recovered, requires release/extension at the information for restoring the PDU session to fail The information of the PDU session risen.The PDU session information being successfully recovered can indicate the letter for the PDU session that core-network side is successfully recovered Breath.

According to the information for requiring release/hang-up PDU session, wireless access network can execute following one:

The context of the specified PDU session of hang-up/release,

The radio bearers context of the PDU session mapping of the UE hung up,

The specified PDU session distribution of release or mapping radio bearer,

The information for requiring release/hang-up PDU session is sent to UE

Optionally, step 148: wireless access network sends RRC reconfiguration message to UE.It optionally, include requiring in message The information of release/hang-up PDU session.

UE carries out hang-up/release of specified PDU session according to the information of the requirement release/hang-up PDU session received.

Fourth embodiment

UE sends the PDU session information that request restores, the PDU meeting that wireless access network restores UE request to wireless access network Words information is sent to core net, the PDU meeting that core net is restored according to the UE PDU session information requested and core net requesting itself It talks about information (the PDU session for having downlink transfer demand) and carries out PDU session recovery, and the result that core net PDU session is restored Wireless access network, wireless access network is notified then to carry out PDU session according to restoration result of the core net to the UE PDU session requested Restore.As shown in figure 15, the embodiment specifically includes the following steps:

Step 151:UE sends RRC recovery request to wireless access network.Optionally, it can indicate in the request at least following One of: the information for the PDU session that UE request restores.

Step 152: wireless access network sends recovery request to access mobile management function.

Optionally, at least one can be indicated in the request: the information for the PDU session that UE request restores.

Step 153: access mobile management function sends recovery request to the conversation management functional of the PDU session of UE.

PDU session to request recovery is not belonging to, conversation management functional can continue to hang up or discharged.

To 1, UE request restore PDU session and 2, have downlink data transmission demand PDU session at least one of, Conversation management functional can execute at least one: restoring the PDU session context of UE, the downlink of the PDU session of UE is passed Defeated address (the transmission address that the PDU session that i.e. wireless access network is UE distributes) sends user plane functions, swashs to user plane functions The PDU session state setting of UE is activation by the PDU session of UE living.In some embodiments, demand is transmitted by downlink data PDU session not necessarily UE request activation PDU session in.

Step 154: conversation management functional is sent to access mobile management function restores response.Optionally, in the request may be used To indicate at least one: the information of the PDU session being successfully recovered, restore failure PDU session information, require release/ The information of the PDU session of hang-up.What the PDU session information instruction conversation management functional being successfully recovered was successfully recovered in core-network side The information of PDU session.It is required that the information instruction conversation management functional of release/hang-up PDU session requires release/recovery PDU The information of session.

Step 155: access mobile management function is sent to wireless access network restores response.It optionally, in the request can be with Indicate at least one: the information for the PDU session being successfully recovered, requires release/extension at the information for restoring the PDU session to fail The information of the PDU session risen.What the PDU session information instruction conversation management functional being successfully recovered was successfully recovered in core-network side The information of PDU session.

To the PDU session that is successfully recovered of instruction, wireless access network carries out PDU session recovery operation, may include at least with It is one of lower:

Restore the context of the PDU session of the UE hung up,

Restore the radio bearer (such as DRB) of the UEPDU session hung up mapping,

PDU session for UE distributes or mapping radio bearer (such as DRB),

Restore the connection between wireless access network and core net about UE.

According to the information for requiring release/hang-up PDU session, wireless access network can execute following one: hang-up/release The context of specified PDU session, the radio bearers context of the PDU session mapping of the UE of hang-up, discharges specified PDU session Distribution or mapping radio bearer, the information for requiring release/hang-up PDU session is sent to UE

It in some embodiments, is not that the PDU session of each UE request can be assigned since radio resource is in short supply Radio resource.Core net is successfully recovered but the PDU session of wireless access network recovery failure, wireless access network execute at least following One of: request core net (such as access mobile management function, conversation management functional and user plane functions etc.) release/hang-up core The PDU session of network recovery success but the failure of wireless access network recovery

Step 156: wireless access network sends RRC to UE and restores, and optionally, indicates at least one in RRC recovery: really Recognize the information of the PDU session of recovery.In some embodiments, the PDU session for confirming that the information of the PDU session of recovery includes is The PDU session that core network recovery and wireless access network are all successfully recovered

Step 157:UE sends RRC to wireless access network and restores to complete.Optionally, restore to indicate in completion in RRC At least one: the information for the PDU session that UE is successfully recovered, the side UE restore the information of the PDU session of failure.

5th embodiment

The embodiment is recovery operation, and the sequence that PDU restores is still that wireless access net side and UE first restore PDU session, Core-network side carries out the recovery of PDU session further according to the PDU session restoration result of UE and wireless access network, its advantage is that completing UE After PDU session with wireless access net side restores, the i.e. transmittable upstream data of UE.In this embodiment, wireless access network is attempted Restore all PDU sessions that UE is hung up.As shown in figure 16, the embodiment specifically includes the following steps:

Step 161:UE sends RRC recovery request to wireless access network.

Wireless access network carries out PDU session recovery operation, may include at least one:

Restore the context of the PDU session of the UE hung up,

Restore the radio bearer (such as DRB) of the UEPDU session hung up mapping,

PDU session for UE distributes or mapping radio bearer (such as DRB),

Restore the connection between wireless access network and core net about UE.

Step 162: wireless access network sends RRC to UE and restores, and optionally, indicates at least one in RRC recovery: really Recognize the information of the PDU session of recovery.In some embodiments, confirm that the PDU session information of recovery can be wireless access side The PDU session being successfully recovered.

Step 163:UE sends RRC to wireless access network and restores to complete.Optionally, restore to indicate in completion in RRC At least one: the information for the PDU session that UE is successfully recovered, the side UE restore the information of the PDU session of failure.

Step 164: wireless access network sends recovery request to access mobile management function.

Step 165: access mobile management function sends recovery request to the conversation management functional of the PDU session of UE.

Optionally, can indicate at least one in the request: the information for the PDU session being successfully recovered restores failure PDU session information.

To the PDU session that wireless access net side is successfully recovered, conversation management functional can execute at least one: extensive The PDU session context of multiple UE, by the downlink transfer address of the PDU session of UE, (the PDU session that i.e. wireless access network is UE is distributed Transmission address) send user plane functions, to user plane functions activation UE PDU session, be by the PDU session state setting of UE Activation.In some embodiments, there is the PDU session of downlink data transmission demand not necessarily in the PDU session of UE request activation In.

Restore the PDU session of the UE of failure to wireless access net side, conversation management functional can execute it is at least following it One: continuing to hang up the PDU session of UE, delete the PDU session of UE, request user plane functions delete the PDU session of UE.In some realities It applies in mode, the PDU session for continuing to hang up or delete the UE of recovery failure depends on the reason of restoring failure.For example it wirelessly connects Entering to restore to fail caused by net side inadequate resource can continue to hang up.Such as be request restore PDU session be unknown PDU meeting It is inconsistent to talk about bright information, it should delete.

Step 166: conversation management functional is sent to access mobile management function restores response.Optionally, in the request may be used To indicate at least one: the information for the PDU session being successfully recovered, the information for restoring the PDU session to fail.It is successfully recovered PDU session information can indicate the information for the PDU session that core-network side is successfully recovered.

Step 167: access mobile management function is sent to wireless access network restores response.It optionally, in the request can be with Indicate at least one: the information for the PDU session being successfully recovered, the information for restoring the PDU session to fail.It is successfully recovered PDU session information can indicate the information for the PDU session that core-network side is successfully recovered.

Optionally, step 168: wireless access network sends RRC reconfiguration message to UE.It optionally, include requiring in message The information of release/hang-up PDU session.

Sixth embodiment

In 5G mobile communication system, mobile management and session management further split and recombinate, the mobility in MME Management function is attributed to AMF.Conversation management functional in MME and the conversation management functional in SGW and PGW are integrated into SMF, and SGW It is integrated into AMF with the user plane functions in PGW.To user face CIOT.Due to there is no interface between AMF and UPF, if only UE context is kept on AMF, and discharges the UE context on SMF, then can not support the recovery on UPF about UE session.

The embodiment is that process is hung up in PDU session.As shown in figure 17, the embodiment the following steps are included:

Step 171: wireless access network is determined to hang up UE, is then suspended request to access mobile management function transmission.

Step 172: access mobile management function is suspended request to the conversation management functional transmission of the PDU session of UE.It is different The conversation management functional of PDU session of UE may be different.

Conversation management functional can execute at least one: saving the PDU session context of UE, save the PDU meeting of UE The downlink transfer address (the transmission address that the PDU session that i.e. wireless access network is UE distributes) of words, sends PDU session to UPF and goes The PDU session state setting of UE is to hang up by activation.

Step 173: conversation management functional sends to access mobile management function and hangs up response.

Access mobile management function can execute following one: saving the mobile context of UE, save UE session correlation letter It ceases (PDU session identification, PDU session status, the address of conversation management functional, slice information)

Step 174: access mobile management function sends to wireless access network and hangs up response.Optionally, it can wrap in response Containing at least one: hanging up the information of the PDU session of successfully UE, hang up the information of the PDU session of the UE of failure.

Accessing mobile management function can be backward until the conversation management functional return hang-up response of the PDU session of all UE Wireless access network initiates to hang up response.

Wireless access network can execute following one: hang up reflecting for the PDU session of the PDU session context, hang-up UE of UE Uplink address (the i.e. user plane functions of the PDU session of the context, releasing bearing resource, preservation UE of the radio bearer penetrated The transmission address distributed for the PDU session of UE), by the PDU session state setting of UE be hang up, hang-up wireless access network and core Connection between network control surface (AMF, MME etc.) about UE.

In some embodiments, wireless access network only hangs up successful PDU session execution pending operation to specified.

In other embodiments, the PDU session to failure is hung up, wireless access network are discharged.

Step 175: wireless access network sends RRC hang-up or RRC release message to UE.Optionally, it may include in message At least one: hanging up the information of the PDU session of UE, the information of the PDU session of the UE of deletion.

UE bottom (or AS layers) can execute pending operation, including at least one: hanging up in the PDU session of UE Hereafter, the context of radio bearer of the mapping of the PDU session of UE, releasing bearing resource are hung up, sets the PDU session status of UE It is set to hang-up, notice UE high-rise (or NAS layers) hangs up the PDU session context of UE, hangs up wireless access network and core net Connection between control plane (AMF, MME etc.) about UE.

In some embodiments, wireless access network only executes pending operation to the PDU session of specified hang-up.

In other embodiments, wireless access network discharges the PDU session of specified deletion.

7th embodiment

When to the terminal of Idle state, core-network side may receive the downlink data notification about the individual PDU sessions of terminal.It is right These sessions are restored just transfer data to terminal.But there is no such information in paging message.Then exist When terminal service is requested, in this case it is not apparent that there are also the PDU session of the data transfer needs of downlink, then the PDU of the activation of terminal request The PDU session of this part has just been lacked in session.Equally, to the terminal for using user face CIOT, if being in Idle state, paging message In there is no the information of the PDU session of the data transfer needs of downlink, if UE on-demand request restore PDU session, can also lack this Part PDU session.

The present embodiment is paging operation/notice operation, which is suitable for the PDU session restored based on core network requests Carry out the scene of PDU Dialog processing.As shown in figure 18, the embodiment the following steps are included:

Step 181: when the user plane functions of core net have downlink data to need to transmit, determining the PDU meeting that request restores Information is talked about, the user plane functions of core net send downlink data notification to SMF.

The downlink data notification is sent to AMF by step 182:SMF.

Step 183a:AMF sends paging message or notification message to wireless access network, wherein carries in the paging message The PDU session information for thering are core network requests to restore.

Step 184: the paging message is forwarded to terminal by wireless access network.

Step 183b:AMF is to UE notification message.Wherein, core network requests recovery can be carried in the notification message PDU session information.In a kind of embodiment, although UE is in Idle state in 3GPP access net, UE is in non-3 GPP access network In connected state.The notification message of the PDU session information restored comprising rear core network requests is sent out so accessing net by 3GPP Give UE.

Step 185a: after receiving the paging message, starting PDU session restores process to terminal, sends and services to core net Request message.Wherein, the PDU session information of core network requests recovery can be carried in the message.

Or step 185b: after receiving the paging message, starting PDU session restores process to terminal, sends out to wireless access network Send RRC recovery request message.Wherein, the PDU session information of core network requests recovery can be carried in the message.

Wherein, it is worth noting that, in the embodiment of the present invention involved acquisition can be receive, configure obtain or Voluntarily know.In some embodiments, the PDU session of data transfer demands can be downlink data transmission demand PDU session or the PDU session for receiving downlink data notification etc..There is the PDU session of data transfer demands to be not necessarily included in ask It asks in the PDU session information of recovery.Because UE is not aware that the network equipment is deposited when sending the information for the PDU session that request restores In the PDU session of downlink data transmission.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed The scope of the present invention.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In embodiment provided herein, it should be understood that disclosed device and method can pass through others Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit, only a kind of Logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine or can To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, It can be electrical property, mechanical or other forms.

Unit may or may not be physically separated as illustrated by the separation member, shown as a unit Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.

If function is realized in the form of SFU software functional unit and when sold or used as an independent product, can store In a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words to existing Having the part for the part or the technical solution that technology contributes can be embodied in the form of software products, the computer Software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be personal meter Calculation machine, server or network equipment etc.) execute all or part of the steps of each embodiment method of the present invention.And it is above-mentioned Storage medium includes: the various media that can store program code such as USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk.

In addition it should be pointed out that in the apparatus and method of the present invention, it is clear that each component or each step are can to divide It solves and/or reconfigures.These, which decompose and/or reconfigure, should be regarded as equivalent scheme of the invention.Also, execute above-mentioned system The step of column processing, can execute according to the sequence of explanation in chronological order naturally, but not need centainly suitable according to the time Sequence executes, and certain steps can execute parallel or independently of one another.For those of ordinary skill in the art, it is to be understood that this The whole or any steps or component of the method and apparatus of invention, can any computing device (including processor, storage Medium etc.) perhaps to be realized with hardware, firmware, software or their combination in the network of computing device, this is this field Basic programming skill of the those of ordinary skill in the case where having read explanation of the invention with them can be achieved with.

Therefore, the purpose of the present invention can also by run on any computing device a program or batch processing come It realizes.Computing device can be well known fexible unit.Therefore, the purpose of the present invention can also include to realize only by providing The program product of the program code of method or device is realized.That is, such program product also constitutes the present invention, and And the storage medium for being stored with such program product also constitutes the present invention.Obviously, storage medium can be any well known deposit Storage media or any storage medium that developed in the future.It may also be noted that in the apparatus and method of the present invention, Obviously, each component or each step can be decomposed and/or be reconfigured.These, which decompose and/or reconfigure, should be regarded as this hair Bright equivalent scheme.Also, the step of executing above-mentioned series of processes can hold according to the sequence of explanation in chronological order naturally Row, but do not need centainly to execute sequentially in time.Certain steps can execute parallel or independently of one another.

Above is the preferred embodiment of the present invention, it should be pointed out that for the ordinary person of the art, Not departing from can also make several improvements and retouch under the premise of the principle of the present invention, these improvements and modifications are also in guarantor of the invention It protects in range.

Claims

1. a kind of conversation controlling method is applied to first network cell side characterized by comprising

Obtain the operation requests information of Packet Data Unit PDU session information；The operation requests information includes in following information At least one of: the PDU session information and terminal request of PDU session information, terminal request release that terminal request is restored are hung up PDU session information；

According to the operation requests information, PDU Dialog processing is carried out.

2. conversation controlling method according to claim 1, which is characterized in that it is described according to the operation requests information, into It the step of row PDU Dialog processing, includes at least one of the following:

When the operation requests information is the PDU session information that terminal request is restored, execute at least one of following: to the end The PDU session that end request restores carries out recovery operation；Recovery operation is carried out to all PDU sessions that the terminal is hung up；And Recovery operation and in inadequate resource is carried out to all PDU sessions that the terminal is hung up, preferentially the terminal request is restored PDU session carry out recovery operation；

PDU meeting when the operation requests information is the PDU session information of terminal request release, to terminal request release Words carry out release operation；

PDU meeting when the operation requests information is the PDU session information that terminal request is hung up, to terminal request hang-up Words carry out pending operation.

3. conversation controlling method according to claim 2, which is characterized in that the step of recovery operation is carried out to PDU session, Include:

At least one in following operation is executed to PDU session:

Restore the context of PDU session；

Restore the corresponding radio bearer of PDU session；

Restore the connection between the first network unit and the second network unit about the terminal.

4. conversation controlling method according to claim 2, which is characterized in that it is described according to the operation requests information, into The step of row PDU Dialog processing further includes at least one of following:

Confirmation, which is sent, to the terminal restores and/or confirm irreclaimable PDU session information；

And

The PDU session restoration result information of the first network unit is sent to second network unit；Wherein, described first The PDU session restoration result information of network unit include in following information at least one of: the PDU session information that is successfully recovered, Restore the PDU session information that the PDU session information of failure, the PDU session information of request release and request are hung up.

5. conversation controlling method according to claim 4, which is characterized in that include at least one of the following:

The PDU session information being successfully recovered is used to indicate the terminal and the first network unit is successfully recovered PDU session；

The PDU session information for restoring failure is used to indicate the terminal or the first network unit restores the PDU of failure Session；

The PDU session information of the request release is used to indicate the terminal and restores the PDU session of failure, the first network list At least one of in the PDU session that member restores the PDU session of failure and the terminal request discharges；

The PDU session information that the request is hung up is used to indicate the terminal and restores the PDU session of failure, the first network list At least one of in the PDU session that member restores the PDU session of failure and the terminal request is hung up；

The PDU session information that the confirmation restores is used to indicate there are the PDU session of PDU session context, can distribute or reflect PDU session, first network unit and the second network unit for penetrating radio bearer resources all confirm in the PDU session that can restore At least one of；

The irreclaimable PDU session of confirmation includes: there is no the PDU session of PDU session context, can not distribute or reflect Penetrate the PDU session of radio bearer resources, first network unit confirms irreclaimable PDU session, the second network unit confirms not At least one of in the PDU session that can restore.

6. conversation controlling method according to claim 4, which is characterized in that described to send confirmation recovery to the terminal And/or after the step of confirming irreclaimable PDU session information, further includes:

Receive the PDU restoration result information of the terminal of the terminal feedback；Wherein, the PDU restoration result letter of the terminal Breath includes: at least one in the PDU session information that the terminal is successfully recovered and the PDU session information of terminal recovery failure ?.

7. conversation controlling method according to claim 4, which is characterized in that described to send institute to second network unit The step of stating the PDU session restoration result information of first network unit, comprising:

The session operation for sending the PDU session restoration result information for carrying the first network unit to the second network unit is asked It asks；

The PDU session for receiving the second network unit that second network unit is returned according to the session operation requests restores knot Fruit information.

8. conversation controlling method according to claim 7, which is characterized in that it is described receive second network unit according to After the step of PDU session restoration result information for the second network unit that the session operation requests return, further includes:

According to the PDU session restoration result information of second network unit, the PDU session of the terminal is handled.

9. conversation controlling method according to claim 1, which is characterized in that it is described according to the operation requests information, into The step of row PDU Dialog processing, comprising:

When the operation requests information includes the PDU session information that terminal request is restored, the second network unit of Xiang Suoshu is sent The PDU session information that the terminal request is restored.

10. conversation controlling method according to claim 9, which is characterized in that described to be sent to second network unit After the step of PDU session information that the terminal request is restored, further includes:

Receive the second network unit of the PDU session information feedback that second network unit is restored according to the terminal request PDU session restoration result information；

11. the conversation controlling method according to claim 8 or 10, which is characterized in that the PDU meeting of second network unit Words restoration result information include in following information at least one of: PDU session information that the second network unit is successfully recovered, second Network unit restores the PDU session information of failure, the PDU session information that the second network element requests restore, the second network unit Request the PDU session information of release and the PDU session information of the second network element requests hang-up.

12. conversation controlling method according to claim 11, which is characterized in that according to the PDU of second network unit Session restoration result information, the step of processing the PDU session of the terminal, comprising:

If the PDU session restoration result information of second network unit is the PDU session letter that the second network unit is successfully recovered Breath is detecting that the PDU session that the second network unit is successfully recovered can not be when first network unit or terminal side restore, to institute The second network unit is stated to send request release or hang up the solicited message of the PDU session；

If the PDU session restoration result information of second network unit is the PDU session letter that the second network unit restores failure Breath executes at least one in following operation to the PDU session of second network unit recovery failure:

Hang up second network unit restore failure PDU session context,

Hang up second network unit restore failure the corresponding radio bearer of PDU session context,

Discharge second network unit restore failure the corresponding bearing resource of PDU session,

Save second network unit restore failure PDU session uplink address,

By second network unit restore failure PDU session state setting be hang up,

Requesting terminal hang up second network unit restore failure PDU session,

Requesting terminal delete second network unit restore failure PDU session context,

Delete the PDU session that second network unit restores failure in requesting terminal；

If the PDU session restoration result information of second network unit is the PDU session letter that the second network element requests restore It ceases, at least one in following operation is executed to the PDU session that second network element requests restore:

Restore the second network element requests recovery PDU session context,

Restore the connection between the second network unit about the terminal；

If the PDU session restoration result information of second network unit is the PDU session letter of the second network element requests release It ceases, at least one in following operation is executed to the PDU session of the second network element requests release:

Discharge the second network element requests release PDU session context,

If the PDU session restoration result information of second network unit is the PDU session letter that the second network element requests are hung up It ceases, at least one in following operation is executed to the PDU session that the second network element requests are hung up:

Hang up the second network element requests hang-up PDU session context,

13. conversation controlling method according to any one of claims 1 to 12, which is characterized in that the PDU session information includes In following information at least one of: PDU session label information, restore instruction information, hang up instruction information, release instruction information, QoS flow information in PDU session identification bit cartographic information and PDU session.

14. a kind of network equipment is applied to first network cell side characterized by comprising

First obtains module, for obtaining the operation requests information of Packet Data Unit PDU session information；The operation requests letter Breath includes at least one in following information: the PDU session letter of PDU session information, terminal request release that terminal request is restored The PDU session information that breath and terminal request are hung up；

First processing module, for carrying out PDU Dialog processing according to the operation requests information.

15. the network equipment according to claim 14, which is characterized in that the first processing module includes following at least one :

First processing submodule, for when the operation requests information be terminal request restore PDU session information when, execute with It is at least one of lower: recovery operation is carried out to the PDU session that the terminal request is restored；All PDU meetings that the terminal is hung up Words carry out recovery operation；And recovery operation and in inadequate resource is carried out to all PDU sessions that the terminal is hung up, preferentially Recovery operation is carried out to the PDU session that the terminal request is restored；

Second processing submodule, for when the operation requests information be terminal request release PDU session information when, to described The PDU session of terminal request release carries out release operation；

Third handle submodule, for when the operation requests information be terminal request hang up PDU session information when, to described The PDU session that terminal request is hung up carries out pending operation.

16. the network equipment according to claim 15, which is characterized in that the first processing module further include it is following at least One:

Irreclaimable PDU session information is restored and/or confirmed to first sending submodule for sending confirmation to the terminal；

And

Second sending submodule, the PDU session for sending the first network unit to second network unit restore knot Fruit information；Wherein, the PDU session restoration result information of the first network unit includes at least one in following information: extensive What multiple successful PDU session information, the PDU session information for restoring failure, the PDU session information of request release and request were hung up PDU session information.

17. the network equipment according to claim 16, which is characterized in that the first processing module further include:

First receiving submodule, the PDU restoration result information of the terminal for receiving the terminal feedback；Wherein, described The PDU restoration result information of terminal includes: that the PDU session information that the terminal is successfully recovered and the terminal restore failure At least one of in PDU session information.

18. the network equipment according to claim 14, which is characterized in that the first processing module further include:

Fourth process submodule, for when the operation requests information include terminal request restore PDU session information when, to institute It states the second network unit and sends the PDU session information that the terminal request is restored.

19. a kind of conversation controlling method is applied to first network cell side characterized by comprising

Obtain the operation requests information of Packet Data Unit PDU session information；The operation requests information includes in following information At least one of: the second network element requests restore PDU session information, the second network element requests release PDU session information, The PDU session information that second network element requests are hung up；

20. conversation controlling method according to claim 19, which is characterized in that it is described according to the operation requests information, The step of carrying out PDU Dialog processing, includes at least one of the following:

When the operation requests information is the PDU session information that the second network element requests restore, to the second network list The PDU session that member request restores carries out recovery operation；

When the operation requests information is the PDU session information of the second network element requests release, to the second network list The PDU session of member request release carries out release operation；

When the operation requests information is the PDU session information that the second network element requests are hung up, to the second network list The PDU session that member request is hung up carries out pending operation.

21. conversation controlling method described in 9 or 20 according to claim 1, which is characterized in that described to be believed according to the operation requests The step of breath, progress PDU Dialog processing, further includes:

The operation requests information is sent to the terminal.

22. conversation controlling method according to claim 21, which is characterized in that the acquisition Packet Data Unit PDU meeting Talk about information operation requests information the step of include:

Receive the paging message or notification message of the transmission of the second network unit；

Described the step of sending the operation requests information to the terminal, comprising:

The paging message or notification message transmitted and received to terminal；

Wherein, the PDU session for indicating that second network element requests restore is carried in the paging message or notification message Information, second network element requests release PDU session information, second network element requests hang up PDU session At least one of information.

23. a kind of network equipment is applied to first network cell side characterized by comprising

Second obtains module, for obtaining the operation requests information of Packet Data Unit PDU session information；The operation requests letter Breath includes at least one in following information: PDU session information, the second network element requests of the second network element requests recovery Discharge PDU session information, the PDU session information that the second network element requests are hung up；

Second processing module, for carrying out PDU Dialog processing according to the operation requests information.

24. the network equipment according to claim 23, which is characterized in that the Second processing module includes following at least one :

5th processing submodule, for being the PDU session information that the second network element requests restore when the operation requests information When, recovery operation is carried out to the PDU session that second network element requests restore；

6th processing submodule, for when the PDU session information that the operation requests information is the release of the second network element requests When, release operation is carried out to the PDU session of second network element requests release；

7th processing submodule, for being the PDU session information that the second network element requests are hung up when the operation requests information When, pending operation is carried out to the PDU session that second network element requests are hung up.

25. the network equipment according to claim 23 or 24, which is characterized in that the Second processing module further include:

Third sending submodule, for sending the operation requests information to the terminal.

26. a kind of conversation controlling method is applied to the second network unit side characterized by comprising

Obtain the operation requests information of Packet Data Unit PDU session information；The operation requests information includes in following information At least one of: the PDU session information of terminal request recovery, the PDU session information of terminal request release, terminal request are hung up The PDU session letter that PDU session information, the PDU session restoration result information of first network unit, third network element requests restore Breath, third network element requests discharge PDU session information, the PDU session information that third network element requests are hung up, have lower line number According to transmission demand PDU session information and receive the PDU session information of downlink data notification；

27. conversation controlling method according to claim 26, which is characterized in that include at least one of the following:

The PDU session restoration result information of the first network unit includes: the PDU session information being successfully recovered, restores failure PDU session information, request release PDU session information and request hang up PDU session information at least one of；

The PDU session information that the terminal request is restored is the first network unit forwards or the terminal send it is described The PDU session information that terminal request is restored；

The PDU session information of terminal request release is the first network unit forwards or the terminal send it is described The PDU session information of terminal request release；

The PDU session information that the terminal request is hung up is the first network unit forwards or the terminal send it is described The PDU session information that terminal request is restored.

28. the conversation controlling method according to claim 26 or 27, which is characterized in that described to be believed according to the operation requests The step of breath, progress PDU Dialog processing, including at least with the next item down:

PDU session to needing to carry out recovery operation executes at least one in following operation:

Restore corresponding PDU session context,

The downlink transfer address of corresponding PDU session is sent to user plane functions entity, it is corresponding to the activation of user plane functions entity PDU session；

PDU session is discharged to the PDU session and first network unit requests of the PDU session information instruction of terminal request release At least one of in the PDU session of information instruction, it executes following operation: discharging the terminal and/or the second network element requests The PDU session of release；

PDU session and the hang-up PDU session of first network unit requests to the PDU session information instruction that the terminal request is hung up At least one of in the PDU session of information instruction, it executes following operation: hanging up the terminal and/or the second network element requests The PDU session of release；

PDU session to the recovery failure of the PDU session restoration result information instruction of the first network unit, executes following behaviour At least one of in work:

The context of the PDU session of hang-up recovery failure,

The context of the PDU session of deletion recovery failure,

User plane functions entity is requested to delete the PDU session for restoring failure；

Wherein, the PDU session for needing to carry out recovery operation includes: the PDU session restoration result of the first network unit The PDU session of the PDU session information instruction of PDU session, terminal request recovery that information instruction is successfully recovered, third network The PDU session for the PDU session information instruction that unit requests are restored has the PDU session information of downlink data transmission demand to indicate PDU session, the PDU session that the PDU session information for receiving downlink data notification indicates, the PDU session of the first network unit The PDU of the instruction of restoration result information is successfully recovered and third network element requests restore PDU session, the first network unit The instruction of session restoration result information is successfully recovered and has the PDU session of the PDU session information instruction of downlink data transmission demand, institute The PDU session restoration result information instruction for stating first network unit is successfully recovered and receives the PDU session letter of downlink data notification The PDU session restoration result information of the first network unit that the PDU session and the terminal request for ceasing instruction restore and described Indicate at least one in the PDU session being successfully recovered.

29. conversation controlling method according to claim 26, which is characterized in that it is described according to the operation requests information, After the step of carrying out PDU Dialog processing, further includes:

Generate the PDU session restoration result information of the second network unit；Wherein, the PDU session of second network unit restores Result information include in following information at least one of: PDU session information that the second network unit is successfully recovered, the second network list PDU session information, the second network element requests that member restores the PDU session information of failure, the second network element requests restore are released The PDU session information that PDU session information, the second network element requests put are hung up；

The PDU session restoration result information of second network unit is sent to the first network unit and/or by the One network unit is sent to the terminal.

30. conversation controlling method according to claim 29, which is characterized in that include at least one of the following:

The PDU session information that second network request restores includes: the PDU session information of downlink data transmission demand receives downlink At least one of in the PDU session that the PDU session of data notification and third network element requests restore；

The PDU session information that second network request is hung up includes: the PDU session of the second network recovery failure, first network unit It is successfully recovered but the PDU session of the second network recovery failure and first network unit and terminal is successfully recovered but the second network Restore at least one in the PDU session of failure；

The PDU session information of second network request release includes: the PDU session of the second network recovery failure, first network unit It is successfully recovered but the PDU session of the second network recovery failure and first network unit and terminal is successfully recovered but the second network Restore at least one in the PDU session of failure.

31. conversation controlling method according to claim 26, which is characterized in that according to the operation requests information, carry out PDU Dialog processing, comprising:

When the operation requests information is that PDU session information, the third network element requests that third network element requests restore are released It puts PDU session information, the PDU session information that third network element requests are hung up, there is the PDU session of downlink data transmission demand to believe Cease and receive in the PDU session information of downlink data notification at least one of when, pass through paging request or notification message, Xiang Suoshu First network unit sends the PDU session information third network element requests release PDU that the third network element requests restore Session information, third network element requests hang up PDU session information, have downlink data transmission demand PDU session information and Receive at least one in the PDU session information of downlink data notification.

32. the conversation controlling method according to any one of claim 26 to 31, which is characterized in that the PDU session letter Breath includes at least one in following information: PDU session label information restores instruction information, hangs up instruction information, discharges instruction QoS flow information in information, PDU session identification bit cartographic information and PDU session.

33. a kind of network equipment is applied to the second network unit side characterized by comprising

Third obtains module, for obtaining the operation requests information of Packet Data Unit PDU session information；The operation requests letter Breath includes at least one in following information: the PDU session letter of PDU session information, terminal request release that terminal request is restored It ceases, PDU session restoration result information, the third network unit of the PDU session information that terminal request is hung up, first network unit are asked The PDU for asking the PDU session information, third network element requests release PDU session information, third network element requests of recovery to hang up Session information, the PDU session information for having downlink data transmission demand and the PDU session information for receiving downlink data notification；

Third processing module, for carrying out PDU Dialog processing according to the operation requests information.

34. the network equipment according to claim 33, which is characterized in that the third processing module includes at least with next :

8th processing submodule executes at least one in following operation for the PDU session to needing to carry out recovery operation:

Restore corresponding PDU session context,

9th processing submodule, the PDU session of the PDU session information instruction for being discharged to the terminal request and first network Unit requests discharge in the PDU session of PDU session information instruction at least one of, execute following operation: discharge the terminal and/ Or second network element requests release PDU session；

Tenth processing submodule, the PDU session of the PDU session information instruction for being hung up to the terminal request and first network Unit requests hang up in the PDU session of PDU session information instruction at least one of, execute following operation: hang up the terminal and/ Or second network element requests release PDU session；

11st processing submodule, the recovery for the PDU session restoration result information instruction to the first network unit are lost The PDU session lost executes at least one in following operation:

The context of the PDU session of hang-up recovery failure,

The context of the PDU session of deletion recovery failure,

Wherein, the PDU session for needing to carry out recovery operation includes: the PDU session restoration result of the first network unit The PDU session of the PDU session information instruction of PDU session, terminal request recovery that information instruction is successfully recovered, third network The PDU session for the PDU session information instruction that unit requests are restored has the PDU session information of downlink data transmission demand to indicate PDU session, the PDU session that the PDU session information for receiving downlink data notification indicates, the PDU session of the first network unit The PDU of the instruction of restoration result information is successfully recovered and third network element requests restore PDU session, the first network unit The instruction of session restoration result information is successfully recovered and has the PDU session of the PDU session information instruction of downlink data transmission demand, institute The PDU session restoration result information instruction for stating first network unit is successfully recovered and receives the PDU session letter of downlink data notification The PDU session restoration result information of the first network unit that the PDU session and the terminal request for ceasing instruction restore and described refers to Show at least one in the PDU session being successfully recovered.

35. the network equipment according to claim 33, which is characterized in that the network equipment further include:

First generation module, for generating the PDU session restoration result information of the second network unit；Wherein, second network The PDU session restoration result information of unit includes at least one in following information: the PDU meeting that the second network unit is successfully recovered Talk about information, the PDU session information that the second network unit restores the PDU session information of failure, the second network element requests restore, the The PDU session information that PDU session information, the second network element requests of two network element requests release are hung up；

Second sending module, for the PDU session restoration result information of second network unit to be sent to first net Network unit and/or the terminal is sent to by first network unit.

36. the network equipment according to claim 33, which is characterized in that the third processing module further include:

12nd processing submodule, for being the PDU session letter that third network element requests restore when the operation requests information Breath, third network element requests discharge PDU session information, the PDU session information that third network element requests are hung up, have lower line number According to transmission demand PDU session information and receive in the PDU session information of downlink data notification at least one of when, pass through paging Request or notification message, Xiang Suoshu first network unit send PDU session information that the third network element requests restore the Three network element requests discharge PDU session information, the PDU session information that third network element requests are hung up, have downlink data biography At least one of in the PDU session information of defeated demand and the PDU session information for receiving downlink data notification.

37. a kind of conversation controlling method is applied to terminal side characterized by comprising

It receives the first network unit and response message is operated according to the PDU session that the operation requests information is sent；

Response message is operated according to the PDU session, carries out PDU Dialog processing.

38. the conversation controlling method according to claim 37, which is characterized in that the operation requests information include at least with It is one of lower:

PDU session information, the second network request that the PDU session information of terminal requesting itself, first network request restore restore PDU session information.

39. the conversation controlling method according to claim 37, which is characterized in that sending packet count to first network unit According to unit PDU session information operation requests information the step of before, further include at least one:

Generate the PDU session information that request restores；

The PDU session information that the request that the second network unit is sent restores is received by first network unit.

40. the conversation controlling method according to claim 37, which is characterized in that the PDU session operates response message packet Include: confirmation restores and/or confirms irreclaimable PDU session information；

The step of operating response message according to the PDU session, carry out PDU Dialog processing, comprising:

The information for restoring and/or confirming irreclaimable PDU session according to the confirmation, handles PDU session.

41. conversation controlling method according to claim 40, which is characterized in that restored according to the confirmation and/or confirmed The information of irreclaimable PDU session, the step of processing PDU session, including at least one:

According to the information for the PDU session that the confirmation restores, restore the PDU session that confirmation restores；

42. conversation controlling method according to claim 40, which is characterized in that restored according to the confirmation and/or confirmed The information of irreclaimable PDU session, after the step of handling PDU session, comprising:

The PDU session restoration result information of terminal after generating PDU Dialog processing simultaneously feeds back to the first network unit；Its In, the PDU restoration result information of the terminal includes at least one in following information: the PDU meeting that the terminal is successfully recovered Talk about information, the terminal restores the PDU session information of failure, the terminal discharges successful PDU session information and the terminal The PDU session information of hang-up.

43. according to the described in any item conversation controlling methods of claim 37 to 42, which is characterized in that the PDU session information Including at least one in following information: PDU session label information restores instruction information, restores instruction information, hang-up instruction letter QoS flow information in breath, release instruction information, PDU session identification bit cartographic information and PDU session.

44. a kind of terminal characterized by comprising

Third sending module, for sending the operation requests information of Packet Data Unit PDU session information to first network unit；

Second receiving module, the first network list sent for receiving the first network unit according to the operation requests information The PDU session restoration result information of member；

Fourth processing module carries out PDU session for the PDU session restoration result information according to the first network unit Processing.

45. terminal according to claim 44, which is characterized in that the terminal further includes at least one:

Second generation module, the PDU session information restored for generating request；

Third receiving module, the PDU session information that the request for receiving the transmission of first network unit restores；

4th sending module, for receiving the PDU session that the request that the second network unit is sent restores by first network unit Information.

46. terminal according to claim 44, which is characterized in that the PDU session restoration result information of first network unit It include: that confirmation restores and/or confirm irreclaimable PDU session information；

The fourth processing module includes:

13rd processing submodule, it is right for restoring and/or confirming the information of irreclaimable PDU session according to the confirmation PDU session is handled.

47. terminal according to claim 44, which is characterized in that the fourth processing module further include:

Submodule is fed back, for generating the PDU session restoration result information of the terminal after PDU Dialog processing and feeding back to described the One network unit；Wherein, the PDU restoration result information of the terminal includes at least one in following information: the terminal is extensive Multiple successful PDU session information, the terminal restore the PDU session information of failure, the terminal discharges successful PDU session letter The PDU session information that breath and the terminal are hung up.

48. a kind of network equipment, which is characterized in that the network equipment includes processor, memory and is stored in described deposit On reservoir and the computer program that can run on the processor, the processor are realized such as when executing the computer program The step of conversation controlling method described in any one of claim 1 to 13,19 to 22,26 to 32.

49. a kind of terminal, which is characterized in that the terminal includes processor, memory and is stored on the memory simultaneously The computer program that can be run on the processor is realized when the computer program is executed by the processor as right is wanted The step of conversation controlling method described in asking any one of 37 to 43.

50. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium Program is realized when the computer program is executed by processor as appointed in claim 1 to 13,19 to 22,26 to 32,37 to 43 The step of conversation controlling method described in one.