CN108282827A

CN108282827A - Method, node for interoperating between network and equipment

Info

Publication number: CN108282827A
Application number: CN201710010114.8A
Authority: CN
Inventors: 柯小婉; 王弘; 许丽香
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2017-01-06
Filing date: 2017-01-06
Publication date: 2018-07-13
Anticipated expiration: 2037-01-06
Also published as: CN108282827B

Abstract

The present invention provides a kind of method, node and user equipmenies for interoperating between network.The present invention provides a kind of methods for interoperating between network, including：First node knows that, about the information to interoperate between network, first node can be according to the session that suitable user face data destination node can be selected to establish UE about the information to interoperate between network known；Judge whether UE meets the predetermined condition of double attachments；Judge whether UE meets internetwork predetermined condition.Disclosed herein as well is another methods, including：First node determines whether to meet double attachment predetermined conditions；And if it is determined that meeting the predetermined condition of double attachments, first node determines that double attachments about UE operate.Using technical solution disclosed in the present application, the advantage of next generation network on the one hand can be applied to improve the throughput of UE, on the other hand UE will not be caused continually to switch between two networks when moving because of next generation network is introduced and cause excessive signaling overheads.

Description

Method, node for interoperating between network and equipment

Technical field

The present invention relates to wireless communication technique, more particularly to a kind of method, node and users for interoperating between network Equipment.

Background technology

Present mobile communication is increasingly intended to provide the multimedia service of high rate data transmission to the user.

As shown in Figure 1, for the system architecture schematic diagram of System Architecture Evolution (SAE).Wherein：User equipment (UE) 101 is Support the terminal device of procotol.Evolved universal terrestrial radio access network (E-UTRAN) 102 is Radio Access Network, It include the base station (eNodeB/NodeB) that access radio network interface is provided for UE.103 responsible pipe of mobile management entity (MME) Manage mobile context, session context and the security information of UE.Gateway (SGW) 104 mainly provides the function of user plane, MME 103 and SGW 104 are likely to be at same physical entity.105 responsible charging of grouped data network gateway (PGW), legal prison It the functions such as listens, same physical entity can also be in SGW 104."Policy and Charging Rules Function entity (PCRF) 106 provides Service quality (QoS) strategy and charging criterion.Universal grouping wireless business supporting node (SGSN) 108 is universal mobile communications system The apparatus for network node of routing is provided in system (UMTS) for the transmission of data.Home subscriber server (HSS) 109 is the local of UE Belong to subsystem, it includes the current location of user equipment, the address of service node, user security information, Yong Hushe to be responsible for protection The user informations such as standby packet data content.

Fig. 2 is next generation network (5G) initial system configuration diagram.The framework includes the next generation (NextGen) UE 201, Next Generation Access or Next-Generation networking (Next Gen (R) AN) 202, next-generation core net (NextGen Core) 203 and data network 204.Control plane interface between Next Gen (R) AN and NextGen Core is NG2, user Plane interface is NG3.It should be appreciated, however, that the title of these interfaces is temporary name, and can also be according to groups such as 3GPP The final decision knitted is named with other titles.In addition, NextGen Core further include user-plane function entity and Control plane function entity.

Fig. 3 is forth generation network system (EPC/SAE) and NGN system (5G/NR 5th Generation/ Next Radio) between configuration diagram.Framework in Fig. 3 includes：User equipment 301, EUTRAN wireless access networks (Evolved Universal Terrestrial Radio Access Network evolution Universal Terrestrial Radio Access Network) 302, EPC core nets (Evolved Packet Core evolution datas core net) 303, Next-Generation networking (Next Gen (R) AN) 304, next-generation core net (NextGen Core) 305, public HSS UDM (User data management) 306 With public PGW 307.Public HSS 306 and public PGW/TUPF (Termination User Plane Function) is two A network system (that is, existing network system (EPC/SAE) and NGN system (5G/NR)) is shared.EUTRAN 302 with Interface between EPC 303 is S1；Control plane interface between Next Gen (R) AN 304 and NextGen Core 305 is NG2, user plane interface are NG3.Interface between EPC 303 and public HSS/UDM 306 is S6a；NextGen Core Interface between 305 and public HSS/UDM 306 is NG S6a either Ng8.Between EPC 303 and public PGW/TUPF 307 Interface be S5, the interface between NextGen Core 305 and public PGW/TUPF 307 is Ng S5 either Ng4.However, It should be understood that the title of these interfaces is temporary name, and also it can use other according to the final decision of the tissues such as 3GPP Title name.

In a foreseeable future, it is intelligent that more and more electrical equipments are had, life periphery articles for use are interconnected, all have Access the function of network.On the one hand, following a part of UE often has following characteristics：It is static or Hypomobility, it is low Cost, it is small data quantity that the data of transmitting-receiving, which also tend to, discrete.To these UE, caused by establishing connection and release connection Signaling overheads is far longer than the data volume of transmitting-receiving.On the other hand, in order to support more and more applications, such as virtual reality in real time Deng the access delay of following mobile communications network greatly reduces.For saving signaling expense, the efficiency of data transmission is improved, The time delay of UE access network is reduced, there is also many problems to need to solve for existing network.

Invention content

This application provides a kind of method, node and user equipmenies (UE) for interoperating between network, when UE is in network Between when moving, be maintained to the continuity of data, and save corresponding signaling overheads.

Exemplary embodiment according to the present invention provides a kind of method for interoperating between network, including：First segment Point is known about the information to interoperate between network；First node know according to about the information to interoperate between network The operation of one network and/or the second network central control system about user equipment (UE).

Optionally, described to may include at least one of following information about the information to interoperate between network：It is opened up between network Flutter information, the attachment information of UE, the session information of UE, the ability information of double attachments of UE, double adhesive ability information of core net, Double adhesive ability information of wireless access network, double attachment signing informations of UE, the ability information switched between the network of UE, core net Network between switching capability information, switching capability information between the network of wireless access network switches signing information between the network of UE, uses The selection information of family face data destination node.

Optionally, between the network topology information may include it is at least one in following information：Network where first node with Other internetwork topology informations, first network and the second internetwork topology information；The attachment information of the UE includes following At least one of information：Double attachment instructions, the whether existing attachments of UE, the existing attachment quantity of UE, the network of the network of UE attachments Information；The session information of the UE includes at least one of following information：The mark of UE, UE is with the presence or absence of the double attachments of support Session, for UE with the presence or absence of supporting the session that switches between network, whether the user face data destination node of the session of UE is public use Family face data destination node, the mark of UE sessions, the IP address of UE in UE sessions, the letter of the user face data destination node of UE sessions Breath, the network information of the network of UE session channels；Double adhesive ability information of the UE include at least one of following information： Whether double attachments are supported, if support unilateral wireless access, if support time-multiplexed unilateral wireless access, if support double The network information of side wireless access, support while the network of attachment, does not support the network information of the network adhered to simultaneously；The core Double adhesive ability information of heart net include at least one of following information：Whether support double attachments, supports to adhere to simultaneously Whether the network information of network disposes public user face data between network and other networks where core net node and terminates Whether point disposes public user data management node where core net node between network and other networks；It is described wirelessly to connect The double adhesive ability information to network include at least one of following information：Whether double attachments are supported, if support that configuration is double attached It；Double attachment signing informations of the UE include at least one of following information：Whether UE allows double attachments, UE to allow double attached The network information for the network, UE do not allow the network information of the network of double attachments, UE to allow the network information of the network of access, UE does not allow the network information of the network of access；The ability information switched between the network of the UE include following information at least One：Whether support to switch between network, supports the network information of the network switched between network, do not support the network switched between network The network information；Switching capability information includes at least one of following information between the network of the wireless access network：Whether prop up It holds and switches between network, if support to switch between Configuration network, support the network information of the network switched between network, do not support network Between the network information of network that switches；Switching capability information includes at least one in following information between the network of the core net It is a：Whether support to switch between network, supports the network information of the network switched between network, do not support the network switched between network Whether the network information disposes public user face data destination node, core where core net node between network and other networks Where net node public user data management node whether is disposed between network and other networks；Switch between the network of the UE Signing information includes at least one of following information：Whether UE allows to switch between network, and UE allows the network switched between network The network information, UE do not allow the network information of the network switched between network, and UE allows the network information of the network of access, and UE is not Allow the network information of the network of access；The selection information of the user face data destination node includes at least one in following information It is a：The instruction of public user face data destination node is selected, the instruction of the user face data destination node of UE sessions is selected.

Optionally, network may include in following information extremely with other internetwork topology informations where the first node It is one few：The information of the user face data destination node of network where first node, the user information pipe of network where first node The information of node is managed, network where first node whether there is interface with other networks, network where first node and other nets Whether public user face data destination node, user plane number that first node where network with other networks share are disposed between network According to the information of destination node, public subscriber information management node whether is disposed between network and other networks where first node, The information for the subscriber information management node that network where first node is shared with other networks exists with network where first node The network information of other networks of interface is not present with network where first node for the network information of other networks of interface, the The node of one node and other networks whether there is interface, with first node there are the nodal information of other nodes of interface, with There is no the nodal informations of other nodes of interface for first node；The first network includes with the second internetwork topology information At least one of following information：First network and the second network whether there is interface, the node of first network and the second network Node whether there is interface, whether dispose public user face data destination node between first network and the second network, first Whether the information for the user face data destination node that network and the second network share, dispose public between first network and the second network Subscriber information management node, the information of the shared subscriber information management node of first network and the second network.

Optionally, the information of the user face data destination node may include at least one of following information：Whether it is public Total user face data destination node, the mark of user face data destination node, the transport Layer address of user face data destination node, user The IP address of face data destination node, the network information for the network that user face data destination node is supported, user face data destination node is not The network information of the network of support；The information of the subscriber information management node includes at least one of following information：User The mark of information management node users information management node, the transport Layer address of subscriber information management node, subscriber information management The network information for the network that node is supported.

Optionally, the network information may include at least one of following information：Network type, network identity.In addition, node Information may include at least one of following information：The mark of node, node group identification, node-node transmission layer address.

Optionally, the control operation about UE may include at least one of following operation：Select suitable user Face data destination node and session or the session channel for establishing UE, judge whether UE meets the predetermined condition of double attachments and execute corresponding Operation, will be sent to UE about the information to interoperate between network, judges whether UE meets the predetermined condition switched between network and hold Row corresponding operating.

Optionally, the step of controlling the operation about UE may include：When first node is in first network, first node According to it is described know about the information that interoperates between network control in first network about the operation of UE and first Network and the second internetwork operation about UE, when first node in the second network when, first node is known according to About the information control operation about UE in the second network to interoperate between network.

Optionally, first node know about the step of information to interoperate between network may include the first node from At least one of lower item is obtained about the information to interoperate between network：Core net node, wireless access network node, UE, UE's Information management node, user face data destination node；And/or

Optionally, first node may include at least one of following item：The node of first network, the section of the second network Point, the wireless access network node of first network, the core net node of first network, the wireless access network node of the second network, the The core net node of two networks, the information management node of UE, UE, user face data destination node.

In accordance with an alternative illustrative embodiment of the present invention, it provides a kind of for realizing the node to interoperate between network, institute Stating node includes：Receiving module, for receiving about the information to interoperate between network；Control module, for the pass according to reception Operation of the information to interoperate between network in first network and/or the second network central control system about user equipment (UE).

In accordance with an alternative illustrative embodiment of the present invention, a kind of method for interoperating between network, the side are provided Method includes：First node determines whether to meet the double predetermined conditions for being attached to first network and the second network of user equipment (UE)；When When first node determination meets UE bis- predetermined conditions for being attached to first network and the second network, first node decision is about UE's Double attachment operation informations.

Optionally, the UE is bis- is attached to first network and the predetermined condition of the second network may include in following item at least One：UE needs to move into the second network from first network, and interface, the section of first network are not present between first network and the second network Interface is not present between point and the node of the second network, UE supports are double to be attached to first network and the second network, and core net is supported double Attachment, wireless access network node support double attachments, UE to allow execution is double to be attached to first network and the second network, and UE has adhered to To first network, UE is not yet adhered in the second network, and there are session and the user face data destination nodes of the session establishment by UE It is first network and the public user face data destination node of the second network, there are the demands of UE data transmissions.

Optionally, first node determines whether the step for meeting the bis- predetermined conditions for being attached to first network and the second network of UE Suddenly may include：First node determines whether to meet that UE is bis- to be attached to first network and second according at least one of following information The predetermined condition of network：Topology information between first network and the second network, the attachment information of UE, the session information of UE, UE's is double The ability information of attachment, double adhesive ability information of core net, the dual link ability information of wireless access network, double attachment label of UE About information, wherein first network and the second network are including wireless access network and core net.

Optionally, double attachment operation informations about UE may include at least one of following item：Execute double attachments Instruction, the network information of the second network, the information of the second network cell keep the first net about the information to interoperate between network The instruction of network selects the instruction of anchor point user face data destination node, and the user of UE and the anchor point of UE sessions are established in the second network Data channel between face data destination node.

Optionally, first node determines that double attachment operation informations about UE may include：First node will be about UE Double attachment operation informations be sent at least one of following item：UE, the node of first network, the node of the second network, the The wireless access network node of one network, the core net node of first network, the wireless access network node of the second network, the second network Core net node, the information management node of UE, user face data destination node.

Optionally, first node may include at least one of following item：First network node, the wireless of first network connect Network access node, the core net node of first network.

In accordance with an alternative illustrative embodiment of the present invention, a kind of node for interoperating between network, the section are provided It puts and includes：Determining module is used to determine whether to meet the double predetermined items for being attached to first network and the second network of user equipment (UE) Part；Control module, for when determining that decision is about UE when meeting UE bis- predetermined conditions for being attached to first network and the second network Double attachment operation informations.

In accordance with an alternative illustrative embodiment of the present invention, a kind of method for interoperating between network, the side are provided Method includes：First node determines whether to meet user equipment (UE) from first network to the predetermined item switched the network of the second network Part；When determination meets the UE from first network to the predetermined condition switched the network of the second network, first node determines About handover operation information between the network of UE.

Optionally, the UE can be included at least following from first network to the predetermined condition switched the network of the second network One of：UE needs to move into the second network from first network, and there are interfaces, UE to support from the first net between first network and the second network Network switches between the network of the second network, and core net supports UE to switch from first network to the network of the second network, wirelessly connects Network access node supports UE to switch from first network to the network of the second network, and UE allows to execute from first network to the second network Network between switch, UE is that first network and the second network are public there are the user face data destination node of session and the session establishment User face data destination node, there are the demands of UE data transmissions.

Optionally, first node determines whether to meet UE from first network to the predetermined item switched the network of the second network The step of part, may include：First node determines whether to meet UE from first network to second according at least one of following information The predetermined condition switched between the network of network：Topology information between first network and the second network, the attachment information of UE, the session of UE Information, the ability information of double attachments of UE, switching capability information between the network of core net switch energy between the network of wireless access network Force information switches signing information between the network of UE.

Optionally, the inter-network operations information about UE may include at least one：Switch between execution network and refers to Show, the network information of second network, the information of second network cell, about the information to interoperate between network.

Optionally, the first node is determined about may include the step of handover operation information between the network of UE：First segment Point will be sent at least one of following item about handover operation information between UE networks：UE, the node of first network, the second net The node of network, the wireless access network node of first network, the core net node of first network, the wireless access network section of the second network Point, the core net node of the second network, the information management node of UE, user face data destination node.

In accordance with an alternative illustrative embodiment of the present invention, a kind of node for interoperating between network, the section are provided It puts and includes：Determining module, it is determined whether it is predetermined from first network to what is switched the network of the second network to meet user equipment (UE) Condition；Control module determines to close when determination meets UE from first network to the predetermined condition switched the network of the second network The handover operation information between the network of UE.

In accordance with an alternative illustrative embodiment of the present invention, it provides a kind of for realizing mutual between first network and the second network The method of operation, the method includes：User equipment (UE) determines whether to meet the condition to interoperate between network；When determination meets net When the condition to interoperate between network, UE interoperates between executing corresponding network.

Optionally, interoperability may include handover operation between double attachment operations or network between the network.

Optionally, the condition to interoperate between the network may include at least one of following item：It determines and meets double attachments Predetermined condition knows double attachment operation informations about UE, knows about the operation information switched between network, knows between network mutually The information of operation；The step of interoperability, includes between the corresponding network of UE execution：When determining satisfaction pair attachment predetermined condition, UE is held The double attachment operations of row；When knowing double attachment operation informations about UE, UE executes double attachment operations；When knowing the net about UE Between network when handover operation information, UE executes handover operation between network.

Optionally, described UE execution double the step of adhering to, may include at least one of one of at least following operation：It keeps The attachment of first network is maintained at UE sessions or the session channel of first network foundation, and UE initiates the second attachment to the second network, UE requests establish the second channel of UE sessions to the user face data destination node of UE sessions, and UE provides UE first to the second network The session information of network, UE provide the information of the anchor point user face data destination node of UE sessions to the second network, and UE is to the second net Network is sent about the information to interoperate between network.

In accordance with an alternative illustrative embodiment of the present invention, it provides a kind of for realizing the user equipment to interoperate between network UE, wherein the UE includes：Determining module, it is determined whether meet the condition to interoperate between network；Control module, it is full when determining When the condition to interoperate between sufficient network, interoperate between corresponding execution network.

As can be seen from the above technical solutions, interoperability includes to switch between double attachments or network between network.Pass through UE and public affairs Respective data channel is established based on two networks between total user face data destination node, can be moved between network in UE When, keep UE data continuities and business continuance.Double attachments are carried out in two networks by UE, may be implemented a kind of loose Network between interoperability without closely coordinating between network.Since the deployment of next generation network is complete in existing network mostly On the basis of covering carry out hot spot deployment, with the movement of UE, between network movement can frequently occur.By above technical scheme, one Aspect can apply the advantage of next generation network to improve the throughput of UE, on the other hand will not cause because of next generation network is introduced UE continually switches between two networks and causes excessive signaling overheads when moving, can be quickly answering for next generation network With laying the foundation.

Description of the drawings

By with reference to be exemplarily illustrated an example attached drawing carry out description, above and other purpose of the invention and Feature will become apparent, wherein：

Fig. 1 is the system architecture diagram configuration diagram of the System Architecture Evolution (SAE) of the embodiment of the present invention；

Fig. 2 is next generation network (5G/NR) initial system configuration diagram of the embodiment of the present invention；

Fig. 3 be the embodiment of the present invention forth generation network system (SAE/EPC) and NGN system (5G/NR) it Between configuration diagram；

Fig. 4 is the flow diagram of the method for interoperating between network of the embodiment of the present invention；

Fig. 5 A are the flow diagram of the method for interoperating between network of the another exemplary embodiment of the present invention；

Fig. 5 B are the flow diagram of the method for interoperating between network of the another exemplary embodiment of the present invention；

Fig. 6 is the flow diagram of the method for interoperating between network of the another exemplary embodiment of the present invention；

Fig. 7 A are the schematic diagram about the method to interoperate between network of exemplary embodiment of the present invention；

Fig. 7 B are the schematic diagram about the method to interoperate between network of the another exemplary embodiment of the present invention；

Fig. 7 C are the schematic diagram about the method to interoperate between network of the another exemplary embodiment of the present invention；

Fig. 8 A are that the present invention of exemplary embodiment of the present invention is a kind of about the embodiment of the method to interoperate between network Three schematic diagrames；

Fig. 8 B are implementing about the method to interoperate between a kind of network of the present invention for the another exemplary embodiment of the present invention Four schematic diagrames of example；

Fig. 9 A are the schematic diagram about the method to interoperate between network of exemplary embodiment of the present invention；

Fig. 9 B are the schematic diagram about the method to interoperate between network of the another exemplary embodiment of the present invention；

Fig. 9 C are the schematic diagram about the method to interoperate between network of the another exemplary embodiment of the present invention；

Figure 10 is the block diagram of the node for interoperating between network of exemplary embodiment of the present invention；

Figure 11 is the block diagram of the node for interoperating between network of the another exemplary embodiment of the present invention；

Figure 12 is the block diagram of the node for interoperating between network of the another exemplary embodiment of the present invention；

Figure 13 is the block diagram of the user equipment for interoperating between network of exemplary embodiment of the present invention.

Specific implementation mode

In order to make the purpose, technological means and advantage of the application be more clearly understood, the application is done below in conjunction with attached drawing It is further described.

When the following Deploying NGN, it is anticipated that can be coexisted with existing network, and more can be in hot zones portion Administration.It can be a kind of common scene that UE moves back and forth between the two networks.Typically, since the user plane number of heterogeneous networks Generally different according to destination node, when UE is moved between network, user face data destination node (such as PGW, TUPF) changes, and can cause Data outage.In order to ensure the continuity of data or the continuity of business, the loss of data is reduced, it can be in two or more nets Public user plane destination node (such as PGW, TUPF) is disposed in network.When UE is moved between the two networks, public use is kept Family face destination node is constant as anchor point, makes it possible the continuity guarantees of data.

When UE is moved to the second network from first network, UE and the second network establish UE when connecting and have just had been detached from the One network.When the connection between UE and the second network is not yet ready for, the user plane destination node of anchor point may also continue to First network transmission data, these data can be lost.In order to avoid loss of data, a kind of technical solution, i.e. UE and are proposed During the connection of two networks is established, UE is also kept and the connection of first network, continues through first network transceiving data.This machine System requires UE while being attached to two networks, and passes through the company of foundation between two networks and same anchor point user face data destination node It connects, so also referred to as double attachments or dual link.This technical solution may subsequently do other names, and naming method does not influence this The main contents of invention.

Double attachments are mainly UE leading, what does not need between first network and the second network and interacts, so double attachments It is also especially suitable for not having the case where interface between first network and the second network.At the initial stage of Deploying NGN, this meeting It is a kind of common scene, requirement that existing network supports the interface with next generation network, needs large-scale upgrade job.

It should be noted that when, there are when interface, UE may also can apply the mode of double attachments between two network entities To reduce the expense of network signal.Because internetwork switching can lead to more signaling overheadss.It can be said that double attachments are a kind of pines The mode to interoperate between scattered network.

For interoperating between network, also a series of problem solves not yet, is analyzed one by one below：

Problem 1：Switching or double attachments either between network, are required for keeping the continuity of data.If selecting anchor point User data destination node is not clear

Problem 2：The different sessions of UE have different anchor point user data destination nodes, it is not yet clear that how the second network to be UE sessions select anchor point user data destination node.

Problem 3：It is not clear how anchor point user data destination node is associated with UE UE sessions in two networks.

Interoperability may include switching between double attachments and network between network.For double attachments, also a series of problem is also It does not solve, is analyzed one by one below：

Problem 1：Who is not clear to determine the initiation of double attachments.It is that wireless access network node determines to the UE of connected state Handover event or network reselection event, including internetwork switching or reselection event.It is that UE determines network to the UE of Idle state Selection and establishment of connection.

Problem 2：Whether the predetermined condition of double attachment execution is complete to be also not clear.Whether meet institute in judgement predetermined condition The necessary information needed is also unclear.Which necessary information obtain also unclear from.

Problem 3：How to configure UE and carries out double attachments.Which necessary information UE, which lacks, is attached to the second network.Double attachments Initiation node be UE.

Problem 4：How second network executes the second attachment of UE.It is attached which necessary information execution second second network lacks It.First, how the second network knows UE there are the attachments of first network；How the second, the second network knows that the session of UE is built It stands request to need to establish to anchor point PGW, i.e., how to be UE selects anchor point PGW.

For switching between network, also a series of problem solves not yet, is analyzed one by one below：

Problem 1：Who is not clear to determine internetwork initiation.It is that wireless access network node determines to the UE of connected state Handover event or network reselection event, including internetwork switching or reselection event.It is that UE determines network to the UE of Idle state Selection and establishment of connection.

Selection：The wireless access network node of first network, the core net node of first network, UE.

Problem 2：Whether the predetermined condition for switching execution between network complete is also not clear.It is whether full in judgement predetermined condition The required necessary information of foot is also unclear.Which necessary information obtain also unclear from.

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.

Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art Language and scientific terminology), there is meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Should also Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art The consistent meaning of meaning, and unless by specific definitions as here, the meaning of idealization or too formal otherwise will not be used To explain.

For the ease of the understanding to technical solution of the present invention, it is necessary to first be carried out such as to the principle of the present invention and corresponding term Under guiding explanation.

Some terms herein are described as follows：

In some embodiments, wireless access network node can be base station, eNB, NodeB, the control of wireless access network center Unit processed, wireless access network node distribution unit etc..It may be virtualized into function or list in the concept of next generation network, node Member.Wireless access network centralized control unit can connect multiple wireless access network node distribution units.

In some embodiments, core net node can be MME, SGSN, SGW, CCNF, AMF, SMF etc., core network control Node (such as MME, CCNF, AMF) processed, core network user face node (SMF, UDF), core network control surface function, core network user Face function, core network control surface unit, core network user face unit etc..The concept of next generation network, node may be virtual Turn to function or unit.

In some embodiments, core network control node can be at least one of lower：MME(Mobility Management entity), SGSN, core network control surface function, core network control surface unit, CCNF (Common Control Network Function), AMF (Access and mobility function), SMF (Session management Function) etc..

In some embodiments, core network user face node can be at least one of lower：SGW, SGSN, core network user Face function (UPF, User Plane Function), core network user face unit, network fragment slice etc..

In some embodiments, UE information managements node can be at least one of lower：HSS, UDM

In some embodiments, user face data destination node can be at least one of lower：It is PGW, UPF, TUPF.UE meetings The anchor point user face data destination node of words can be selected user face data destination node when establishing UE sessions.

Data referred to herein may include control face data (such as NAS signaling, TAU Request, Service Request, the user face data etc. transmitted by the data packet of control plane) or user plane data.Whether there are data to send Indicate the instruction for whether having upload control face data transmission demand can be further divided into, if having the transmission of uplink user face data The instruction of demand.Whether have the instruction that data are sent can also be further divided into the instruction for whether having upstream data transmission demand, Whether the instruction of downlink data transmission demand is had.

Fig. 4 is the flow diagram according to the method for interoperating between network of the embodiment of the present invention.Such as Fig. 4 institutes Show, which includes the following steps：

Step 401, first node is known about the information to interoperate between network.

Optionally, following one is included at least about the information to interoperate between network：Topology information between network, the attachment of UE Information, the session information of UE, the information of the user face data destination node of UE, double adhesive ability information of UE, core net it is double attached Ability information, double adhesive ability information of wireless access network, double attachment signing informations of UE, switching capability is believed between the network of UE It ceases, switching capability information between the network of core net, switching capability information between the network of wireless access network, switches label between the network of UE About information, interoperability information between the network of UE, interoperability information between the network of core net, the network of wireless access network Between interoperability information, interoperate between the network of UE signing information, the selection information of user face data destination node.

In some embodiments, first node can be obtained from second node about the information to interoperate between network.The Two nodes can include at least with next：Core net node (such as MME, SGW, CCNF, SMF), wireless access network node (such as eNB, GNB), UE information managements node (such as HSS, UDM), user face data destination node (such as PGW, UPF, TUPF), UE, first network Node, the second network node, the wireless access network node of first network, the core net node of first network, the nothing of the second network Line access node, the core net node of the second network.

Optionally, first node can be following one：The node of first network, the second network node, first network Wireless access network node, the core net node of first network, the wireless access network node of the second network, the core net of the second network Node, core net node, wireless access network node, UE, UE information managements node (such as HSS, UDM), user face data destination node (such as PGW, UPF, TUPF).UE information managements node can be the UE information management nodes shared between being than or equal to two networks (for example being the UE information managements node that first network and the second network share)；User face data destination node can be more than or wait User face data destination node (such as the user face data end that be first network share with the second network shared between two networks Node).

Optionally, interoperability information can include at least one between the network of UE：Double adhesive abilities of UE are believed Breath, switch between the network of UE ability information.

Optionally, interoperability information between the network of wireless access network can include at least one：Wireless access Double adhesive ability information of net, switch between the network of wireless access network ability information.

Optionally, interoperability information between the network of core net can include at least one：Core net it is double attached Ability information, switch between the network of core net ability information.

Optionally, interoperate signing information between the network of UE, can include at least one：Double attachments signing letter of UE It ceases, the signing information switched between the network of UE.

Optionally, double adhesive ability information of UE can include at least one：Whether double attachments are supported, if branch Hold unilateral wireless access (such as single radio), if support time-multiplexed unilateral wireless access, if support bilateral nothing Line accesses (such as dual radio), and the network information of the network of support while attachment does not support the network of the network adhered to simultaneously Information.In some real-time modes, unilateral wireless access indicates that UE can only access a kind of Radio Access Network simultaneously；In order to realize Double attachments, can by time-multiplexed mode in the network of double attachments transceiving data.If UE only supports unilateral wirelessly to connect Enter and do not support to be time-multiplexed, UE, which can be equal to, does not support double attachments.

Optionally, switching capability information between the network of UE can include at least one：Whether support to cut between network It changes, supports the network information of the network switched between network, do not support the network information of the network switched between network.

Optionally, the network information may include at least one：Network type (such as GERAN, UMTS, EUTRAN, EPC, 5G/NR, NR Core, EPC), network identity (such as PLMN),

In some embodiments, it when first node is that UE establishes UE sessions, is cut between supporting double attachments or supporting network The UE changed can select the user face data destination node (such as PGW) shared with other networks, such as selection UE to support while adhering to Or UE support the public user face data destination node of two or more networks of access.When UE is moved to other networks, lead to It crosses between network to interoperate and still can keep the business continuance of UE.Switch between not supporting double attachments or not supporting network UE can not select public user face data destination node.In other embodiments, first node is that UE establishes UE sessions Afterwards, the session information of UE can be saved in and be shared with other networks by the UE that switch between supporting double attachments or supporting network Subscriber information management node.When UE is moved to other networks, other networks can pass through shared subscriber information management node Obtain the session information of UE.The user face data of session is whole before other networks remain as UE selections by the session information of acquisition Node keeps the business continuance of UE.

Optionally, double adhesive ability information of wireless access network can include at least one：Whether support double attached It, if support the double attachments of configuration.

Optionally, switching capability information between the network of wireless access network can include at least one：Whether net is supported Switch between network, if support to switch between Configuration network, support the network information of the network switched between network, do not support to cut between network The network information of the network changed.

Optionally, double adhesive ability information of core net can include at least one：Whether double attachments, branch are supported The network information (as described above, details are not described herein again) of network held while adhered to, network where core net node and other nets Public user face data destination node in whether being disposed between network, network where core net node and between other networks whether portion Public user data management node in administration, the public user plane disposed between network and other networks where core net node The information of data destination node, the public user data management node disposed between network and other networks where core net node Information.

Optionally, switching capability information between the network of core net can include at least one：Whether support between network The network information (as described above, details are not described herein again) of network switched between network is supported in switching, does not support to switch between network The network information of network, whether in being disposed between network and other networks where core net node public user face data terminates Point, public user data management node, core net section in whether being disposed between network and other networks where core net node The information for the public user face data destination node disposed between network and other networks where point, network where core net node The information for the public user data management node disposed between other networks.

Optionally, double attachment signing informations of UE can include at least one：Whether UE allows double attachments, UE to permit The network information of the network of Xu Shuan attachments, UE do not allow the network information of the network of double attachments, UE to allow the net of the network of access Network information (as described above, details are not described herein again), UE do not allow the network information of the network of access (as described above, herein no longer It repeats).

Optionally, the signing information switched between the network of UE can include at least one：Whether UE allows between network Switching, UE allow the network information of the network switched between network, UE that the network information of the network switched between network, UE is not allowed to permit Perhaps the network information (as described above, details are not described herein again) of the network accessed, UE do not allow the network information of the network of access (such as Upper described, details are not described herein again).

In some embodiments, when first node is that UE establishes UE sessions, to allowing the UE of double attachments or allowing network Between the UE that switches, can select the user face data destination node shared with other networks, for example, selection UE allow to adhere to simultaneously or Access two or more networks it is public can select with other networks share user face data destination node.When UE is moved to When other networks, the business continuance of UE still can be kept by interoperating between network.To not allowing the UE or not of double attachments Allow the UE switched between network, public user face data destination node can not be selected；In other embodiments, first segment Point is after UE establishes UE sessions, and the UE switched between allowing the UE of double attachments or allowing network can protect the session information of UE It is stored to the subscriber information management node shared with other networks.When UE is moved to other networks, other networks can be by altogether Some subscriber information management nodes obtain the session information of UE.Other networks remain as UE by the session information of acquisition and select it The user face data destination node of preceding session, keeps the business continuance of UE.

Optionally, topology information can include at least one between network：Network where first node and other networks Between topology information, topology information between first network and the second network.First network can be the source network of UE movements, the second net Network can be the target network of UE movements.First node can be the node of first network, can also be the node of the second network

Network and other internetwork topology informations can include at least one where first node：First node institute In the information of the user face data destination node of network, the information of the subscriber information management node of network where first node, first Whether network where node whether there is interface with other networks, disposed between first node place network and other networks public User face data destination node, the information for the user face data destination node that network where first node is shared with other networks, the Network where one node and public subscriber information management node whether is disposed between other networks, network where first node with The information of the shared subscriber information management node of other networks, there are the nets of other networks of interface with network where first node (network information is as described above, details are not described herein again for network information.), other networks of interface are not present with network where first node The network information, the nodes (such as wireless access network node or core net node) of first node and other networks is with the presence or absence of connecing Mouthful, there are other nodes of interface (such as wireless access network node, core net node, user face data terminations with first node Point or subscriber information management node) nodal information, with first node there is no interface other nodes nodal information.

Topology information can include at least one between first network and the second network：First network is with the second network It is no there are interface, the node of the node of first network and the second network whether there is interface, between first network and the second network Whether public user face data destination node, the letter of user face data destination node that first network and second network share are disposed Whether breath, dispose public subscriber information management node between first network and the second network, first network and the second network are total The information of some subscriber information management nodes.

Optionally, nodal information may include at least one：Mark (the mark of such as core net node of node GUMMEI, GUTI, the mark of wireless access network node, user face data termination point identification, the mark of UE), node group identification is (such as MMEGI), node-node transmission layer address.

Optionally, the information of user face data destination node may include at least one：Whether it is public user plane Data destination node, the mark of user face data destination node, the transport Layer address of user face data destination node (such as PGW), user plane The IP address of data destination node, the network information for the network that user face data destination node is supported is (as described above, no longer superfluous herein State), the network information (as described above, details are not described herein again) for the network that user face data destination node is not supported.

Optionally, the information of the user face data destination node of UE can be UE ranks or the session-level of UE.I.e. not With UE user face data destination node can different or difference UE sessions user face data destination nodes can difference.Keep data Continuity can be to maintain the user face data destination node of UE or keep the user face data destination node of UE sessions constant.

Optionally, the information of subscriber information management node may include at least one：Subscriber information management node is used The mark of family information management node, the transport Layer address of subscriber information management node, the network that subscriber information management node is supported The network information.

In some embodiments, it is that configuration UE executes double be attached to only not have interface with the second network in first network One of the precondition of first network and the second network, otherwise can execute inter-network switching process.In other embodiments In, there are public user face data destination node it is that configuration UE is executed between double attachments or network between first network and the second network One of precondition of switching, otherwise data continuity cannot keep.In other embodiments, first network and the second net Between network there are public subscriber information management node can help the second network obtain UE first network UE contexts (such as Session information), original public user face data destination node can be selected in UE session establishments or session modification, to protect Demonstrate,prove the continuity of data.If there is no public subscriber information management node, the node of first network can be by UE to UE contexts (such as session information) of the node forwarding UE of two networks in first network.

Optionally, the attachment information of UE can include at least one：Double attachment instructions, the whether existing attachments of UE, UE Existing attachment quantity, the network information of the network of UE attachments (network information is as described above, details are not described herein again).

In some embodiments, only when UE has existed the attachment of first network, the node of the second network just needs Will refer to UE first network context.

Optionally, the session information of UE can include at least one：The mark of UE, UE are double attached with the presence or absence of supporting The session, for UE with the presence or absence of the session for supporting to switch between network, whether the user face data destination node of the session of UE is public User face data destination node, the mark of UE sessions, the IP address of UE in UE sessions, the user face data destination node of UE sessions Information (information of user face data destination node is as described above, details are not described herein again), establishes the network of the network of UE session channels Information (network information is as described above, details are not described herein again).The user face data destination node of UE sessions is referred to as UE sessions Anchor point user face data destination node.

Optionally, the selection information of user face data destination node can include at least one：Select public user The instruction of face data destination node selects the instruction of the anchor point user face data destination node of UE sessions.

In some embodiments, the session only established on public user face data destination node is just supported double attached It, otherwise, there is no interface, data continuity method to ensure between target network and user face data destination node.In other realities It applies in mode, public user face data destination node may have several, user face data termination where which is only UE sessions Point is unclear.Use before transport Layer address help the second network selection that can be by providing user face data destination node Family face data destination node.

Step 402, first node is according to know can be in first network and/or about the information to interoperate between network Operation of the two network central control systems about user equipment (UE).

Optionally, first node is according to the behaviour controlled about the information to interoperate between network about user equipment (UE) known Make to include at least one：1) suitable user face data destination node is selected to establish session or the session channel of UE；2) judge Whether UE meets the predetermined condition of double attachments；3) UE will be sent to about the information to interoperate between network；4) judge whether UE is full The internetwork predetermined condition of foot.When core net node is first node, UE can be transmitted directly to or pass through wireless access network Node is issued to UE.

1) suitable user face data destination node is selected to establish session or the session channel of UE

In some embodiments, between the UE for supporting and/or allowing to interoperate multiple networks, suitable user is selected The session that face data destination node establishes UE includes at least one：A) first node is the node of first network, can be selected UE support and/or UE permitted multiple networks between the user face data destination node that shares establish the session of UE.It selects at this time The user face data destination node selected becomes the anchor point user face data destination node of UE sessions, i.e. UE is kept when interoperating between network It is constant.B) first node is the second network node, selects anchor point user face datas of the UE in the session that first network is established whole Node establishes session or the session channel of UE in the second network.UE can provide UE when the second network session is asked The session identification for the session established in one network, then what is established in the second network is the second channel of same session；UE also may be used With the session identification for providing the session that UE is established in first network and new session identification, then that establishes in the second network is new Session and the session association established in first network with UE of new session.It is whole by suitable user face data selected above Node, when UE is moved to the second network from first network, the user face data destination node of UE sessions can remain unchanged, UE with Two channels between the user face data destination node of anchor point there are two associated sessions or there are same session, such first Data in network UE sessions can be sent in associated session in the second network so that keep the data continuity of UE at It is possible.At this point, the network that anchor point user face data destination node is supported need to include the second network.

In some embodiments, when UE is attached to first network and first node be first network node.First segment Point can be the suitable public user face data termination of UE selections based on one of at least following information when establishing UE sessions Point.

The signing information that ■ can interoperate between the network according to the UE known knows that UE allows interoperate between network. Interoperability can further include between the network of UE switches between double attachments or network.

■ can know that UE allows to carry out double attachments according to the double attachment signing informations for the UE known.

The signing information that ■ can switch between the network according to the UE known knows that UE allows between network switch.

■ can know that UE supports the network information of the network of double attachments according to double adhesive ability information of UE.

■ can know that UE supports the network information of the network switched between network according to switching capability information between the network of UE.

■ can know that there are common user's face data destination nodes between network according to the topology information of network.

■ can select user face data destination node according to the selection information of user face data destination node.It is public according to selecting User face data destination node instruction, first node can be that UE selects UE present access network shared with other networks User face data destination node, UE present access networks and other networks should all be that UE is supported and allowed access；According to choosing The instruction of the anchor point user face data destination node of UE sessions is selected, first node can establish sessions or meeting of the UE in the second network When talking path, the anchor point user face data destination node for the session that selection UE is established in first network.

2) judge whether UE meets the predetermined condition of double attachments

In some embodiments, when UE is attached to first network and first node be first network node.First segment When point carries out double attachment configuration to UE, can using about the information to interoperate between network as double attachment configuration informations about UE It is sent to UE.

Topology information can help idle UE when determining double attachments between ■ networks, and selection has commons with first network Second network of family face data destination node.

The session information of ■ UE can help UE when initiating the second attachment to the second network, and the session information of UE is provided To the second network, helps the second network to establish UE sessions and select suitable user face data destination node.

Double adhesive ability information of ■ the second network core nets and the double adhesive ability information of double attachments of wireless access network have Help whether UE initiates the second attachment under the second network.

In some embodiments, when UE is attached to first network and first node be first network node.First segment Point will be sent to UE about the information to interoperate between network, after this contributes to UE to enter Idle state or inactive state, voluntarily judge With the second network of the double attachments of selection.In some embodiments, first node can be bis- by UE before determining the bis- attachments of UE The configuration information advance notice UE of attachment, configuration when reducing double attachment operations to UE.

In some embodiments, it after UE, which is attached to first network, establishes session, and attempts to adhere to and establish session to arrive Second network, first node is the node of the second network at this time.First node selects the public affairs of anchor point for UE when establishing UE sessions Common user data surface destination node.

■ can know the network type that UE is supported according to double adhesive ability information of UE.

■ can know that UE currently adheres to for second according to the attachment information of UE, have existed the UE or more of attachment for the first time Text.

■ can know that the user face data destination node of UE sessions (can also claim according to UE in the session information of first network For anchor point user face data destination node).

■ can know the second network support anchor point user face data destination node according to network topological information.

In some embodiments, it after UE, which is attached to first network, establishes session, and attempts to adhere to and establish session to arrive Second network, first node is the node of the second network at this time.Second network can show the double attachments of the second network by broadcast The ability information switched between ability information and/or network.

In some embodiments, when first node is in first network, first node know according to about The information that interoperates between network controls internetwork with second about the operation of UE and in first network in first network Operation about UE；In other embodiments when first node in the second network when, first node is known according to About the information control operation about UE in the second network to interoperate between network.

Fig. 5 A are the flow diagram of the method for interoperating between network of the another exemplary embodiment of the present invention.Such as Shown in Fig. 5 A, which includes the following steps：

Step 5-101, first node determine whether UE meets double predetermined conditions for being attached to first network and the second network.

Optionally, predetermined condition can include at least one：UE need from first network move into the second network, first Interface is not present between network and the second network, between the node of first network and the node of the second network (such as the core of two networks Between heart net node, between the node of two network radio access networks) be not present interface, UE support it is double be attached to first network and Second network, core net support pair attachment, wireless access network node that double attachments, UE is supported to allow execution is double to be attached to first network With the second network, UE has attached to first network, and UE is not yet adhered in the second network, and UE is built there are session and the session Vertical user face data destination node is first network and the public user face data destination node of the second network, and there are UE data transmissions Demand.

In some embodiments, UE needs to move into the second network from first network include following one：First segment Network switching event and the handover event handover event between network occur for the measurement report instruction that point receives UE, and first node needs By UE from first network gravity treatment to the second network.

In some embodiments, acquisition such as step 401 institute for the information and information whether predetermined condition meets is determined It states, details are not described herein again.

Optionally, first node can include following one：The node of first network, the wireless access network section of first network Point, the core net node of first network, the second network node, the wireless access network node of the second network, the core of the second network Net node, core net node, wireless access network node, UE, UE information management nodes, user face data destination node.

In some embodiments, first node can be known between first network and the second network one of in the following manner There is no interfaces：1) when first node initiates to switch to core net node, core net node returns to be opened up between handover failure and network Flutter information (as described in step 401, details are not described herein again), the reason of topology information is presented as handover failure at this time between network, than As between first network and the second network without interface.2) know topology between first node place network and other networks by configuring Information (as described in step 401, details are not described herein again).3) it is established and is obtained by the interface of wireless access network and core net node Topology information can be and net where first node between topology information network between network and other network of network where first node Network does not have the network information of the network of interface (as described in step 401, details are not described herein again).Topology information at this time can be between network There is no interface between instruction first network and the second network.

1) optionally, UE supports that double attachments can include at least one：UE support simultaneously be attached to first network with Second network, UE support access first network, UE to support the second network of access.First node can pass through double attachments of acquisition UE Ability determines whether UE supports double attachments.

2) optionally, core net node supports that double attachments can include at least one：The core net section of first network Point supports double attachments, the core net node of the second network to support double attachments.First node can be by obtaining the double attached of core net The ability of wearing determines whether UE supports double attachments.

3) optionally, wireless access network node supports that double attachments can include at least one：First network it is wireless Access network node supports double attachments, the wireless access network node of the second network to support double attachments.First node can be by knowing Double adhesive abilities of wireless access network determine whether UE supports double attachments.

Step 5-102, when determine meet UE bis- predetermined conditions for being attached to first network and the second network when, first node Determine double attachment operation informations about UE.

In some embodiments, first node will be sent at least one about the bis- attachment operation informations of UE：UE, Wireless access network node, core net node, the node of first network, the second network node, the wireless access network section of first network Point, the core net node of first network, the wireless access network node of the second network, the core net node of the second network, UE, UE letter Cease management node, user face data destination node.

Double attachment operation informations about UE may include at least one：Double attachment instructions are executed, the second network The network information (for the network information as described in step 401, details are not described herein again), the information of the second network cell, about mutual between network The information (for the information to interoperate between network as described in step 401, details are not described herein again) of operation, keeps the instruction of first network, The instruction for selecting anchor point user face data destination node, meeting between UE and the user face data destination node of anchor point is established in the second network Words or the data channel of session.The user face data destination node of anchor point can be the user face data destination node or UE of the anchor point of UE The user face data destination node of the anchor point of session.

Optionally, it may include at least one to keep the instruction of first network：1) UE for being maintained at first network is attached It.UE when being attached to the second network, do not delete or hang up, and is still in active shape by the context that UE adheres in first network State；2) it is included in UE sessions or the session channel of first network.The session that UE is established in first network is still in active state, It still can be with transceiving data in the channel that first network is established between the user face data destination node of UE and UE session anchor points.

Optionally, the second network cell information such as may include at least one：The mark of cell, the frequency of cell, The network information of network where cell.

The flow diagram for the method that Fig. 5 B interoperate between the network for the another exemplary embodiment of the present invention.Such as Fig. 5 B Shown, which includes the following steps：

Step 5-201, it is pre- to switching the network of the second network from first network that first node determines whether UE meets Fixed condition.

Optionally, predetermined condition can include at least one：UE need from first network move into the second network, first Exist (such as between the core net node of two wireless networks, between the node of wireless access network) between network and the second network Interface, UE supports switch from first network to the network of the second network, and core net supports UE from first network to the second network Network between switch, wireless access network node support UE switch from first network to the network of the second network, UE allows to execute Switch from first network to the network of the second network, UE is there are the user face data destination node of session and the session establishment One network and the public user face data destination node of the second network, there are the demands of UE data transmissions.

In some embodiments, acquisition modes that whether predetermined condition meets are determined as described in step 401, herein It repeats no more.

In some embodiments, first node can be known between first network and the second network one of in the following manner There are interfaces：1) by configure know topology information between network where first node and other networks (as described in step 401, this Place repeats no more).Between network topology information can be with first node where network there are the network informations of the network of interface (such as Described in step 401, details are not described herein again).2) it is established by the interface of wireless access network and core net node and obtains first segment Topology information between network and other networks where point (as described in step 401, details are not described herein again).Topology information between network at this time It can indicate that there are interfaces between first network and the second network.

1) switching can include at least one between optionally, UE supports network：UE supports are switched to from first network Second network, UE support access first network, UE to support the second network of access.First node can be by knowing between the network of UE Switching capability information determines whether UE supports to switch between network.

2) switching can include at least one between optionally, core net node supports network：The core of first network Net node is supported to switch between network, and the core net node of the second network is supported to switch between network.First node can be by knowing Switching capability information determines whether core net node is supported to switch between network between the network of core net.

3) switching can include at least one between optionally, wireless access network node supports network：First network Wireless access network node is supported to switch between network, and the wireless access network node of the second network is supported to switch between network.First node Switching capability information determines whether wireless access network node is supported to cut between network between network that can be by knowing wireless access network It changes.

Step 5-202, when determination meets UE from first network to the predetermined condition switched the network of the second network, the One node is determined about handover operation between the network of UE.

In some embodiments, first node will send at least one about handover operation information between UE networks： UE, wireless access network node, core net node, the node of first network, the second network node, the wireless access network of first network Node, the core net node of first network, the wireless access network node of the second network, the core net node of the second network, UE, UE Information management node, user face data destination node.

May include at least one about handover operation information between the network of UE：Switching indicates between executing network, the The network information (for the network information as described in step 401, details are not described herein again) of two networks, the information of the cell of the second network are closed The information to interoperate between network (with unanimously, details are not described herein again described in step 401).

Optionally, the cell information of the second network such as may include at least one：Cell ID, the frequency of cell, The network information of network where cell.

The flow diagram for the method that Fig. 6 interoperates between the network for the another exemplary embodiment of the present invention.Such as Fig. 6 institutes Show, which includes the following steps：

Step 601, UE determines whether to meet the predetermined condition to interoperate between network.

The predetermined condition to interoperate between network includes at least following one：1) it determines to meet and double is attached to first network and the Two network predetermined conditions (as described in step 5-101, details are not described herein again)；2) know double attachment operation informations about UE (such as Described in step 5-102, details are not described herein again)；3) know about the information to interoperate between network (as described in step 401, herein not It repeats again)；4) know about handover operation information between network (as described in step 5-202, details are not described herein again).

In some embodiments, UE obtains double attachment operation informations about UE from first node.

In some embodiments, according to the mode of predetermined condition judgement especially suitable in idle mode or inactive mould Formula is moved to the UE of other networks, and UE can voluntarily judge whether to initiate double attachment operations；According to knowing about the double attached of UE UE of the operation information especially suitable for being moved to other networks in the connection mode, network may determine whether to require UE at this time Initiate double attachment operations.

In some embodiments, UE is known by least one about the information to interoperate between network or about UE Double attachment operation informations：Wireless access network, core net.

Step 602, it when UE is according to the predetermined condition to interoperate between network is met, executes and interoperates between corresponding network.

Further, when the predetermined condition UE to interoperate between network determine the predetermined conditions of double attachments meet or receive about Double attachment operation informations of UE, UE execute double attachment operations.

Optionally, it can include following one that UE, which executes double attachment operations,：1) the UE attachments of first network are kept.It can make Still in active state.2) UE sessions or the session channel of first network foundation are maintained at.It can be allowed to still in enlivening shape State.The session or session channel established in first network between the user face data destination node of the anchor point of UE and UE sessions still may be used With transceiving data.3) UE initiates the second attachment to the second network；4) UE initiates a session request request to the second network, and request is established Anchor point user face data destination node of the second channel of UE sessions to UE sessions.UE can be provided at least in session establishment request One of following information：UE is in the session information (for session information as described in step 401, details are not described herein again) of first network, anchor point The information of user face data destination node (for the information of user face data destination node as described in step 401, details are not described herein again).5)UE It is sent to the second network about the information to interoperate between network (as described in step 401, details are not described herein again).About mutual between network It is that UE sessions select anchor point user face data destination node (concrete operations such as step 402 that the information of operation, which can assist the second network, Described, details are not described herein again).

Further, when the predetermined condition to interoperate between network is the operation information received about switching between the network of UE, UE executes handover operation between network.

Fig. 7 A are the first attaching process.UE first may the second attachment or network in case of movement between network after adhering to Between switch.Fig. 7 B are the second attaching process.Fig. 7 C are inter-network switching process.

Fig. 7 A are the schematic diagram about the method to interoperate between network of exemplary embodiment of the present invention.UE first adheres to In first network.UE establishes UE sessions after can establishing UE sessions or attachment in attachment.As shown in Figure 7 A, this method include with Lower step：

Step 7-101 is connected between UE and wireless access network node and is established.When connection is established, UE can be to wirelessly connecing Ability information (the energy of double attachments of UE switched between the ability information of double attachments and/or the network of UE of network access node offer UE The ability information switched between force information and the network of UE is as described in step 401).Wireless access network node can be according to corresponding UE Ability selects core network control node (such as MME, CCNF, AMF)

Step 7-102, UE send attach request or session establishment request to core network control node.Wireless access network node Or UE can provide the ability information of double attachments of UE (in attach request or session establishment request) to core network control node And/or ability information (the ability information switched between the ability information of double attachments and the network of UE of UE switched between the network of UE As described in step 401).

Step 7-103, core network control node inquire the information of UE to public HSS/UDM.In inquiry request, core net Node can indicate at least one to HSS/UDM：The ability switched between the ability information of double attachments or the network of UE of UE Information.

Step 7-104, HSS/UDM return to inquiry response to core network control node.In inquiry response, HSS/UDM can To return at least one：Whether UE allows whether double attachments, UE allow to switch between network, common user's face data destination node Information (information of user face data destination node is as described in step 401).

Step 7-105, after UE is verified, core network control node is to core network user face node (SGW, SMF, UDF) Send session establishment request.To the UE for supporting and allowing the UE of double attachments or switch between supporting and allowing network, mode one：Core The session that heart network control node is UE selects common user's face data destination node, and to core net in session establishment request User face nodes provide the information (information of user face data destination node such as step 401 institute of common user's face data destination node It states)；Mode two：Core network control node provides in session establishment request about information (such as step 401 to interoperate between network It is described), it is that UE selects common user's face data destination node by core network user face node.User data about UE sessions The selection operation of destination node is as described in step 402, and details are not described herein again.Step 7-106, core network user face node is to selection Common user's face data destination node sends the request of UE session establishments.UE marks, the session identification of UE are provided in session request request.

Step 7-107, common user's face data destination node can distribute the IP address of UE, preserve UE session contexts, to Core network user face control node returns to session establishment response.At this point, the core network user face node becomes the anchor of the UE sessions Point user face data destination node.

Step 7-108, core network user face node return to session establishment response to core network control node.

Step 7-109, core network control node can send at least one after receiving to HSS/UDM：The session of UE Information, the attachment information of UE (the attachment information of UE and the session information of UE are as described in step 401).At this time in the session information of UE The network for establishing the session of UE has been first network, and the network that UE adheres in the attachment information of UE is to be attached to first network.

Step 7-110, core network control node establish the context of UE to WLAN access point.Optionally, core net controls Node can be sent about the information to interoperate between network to WLAN access point or UE (about the information to interoperate between network as walked Described in rapid 401).

Step 7-111, wireless access network node can be that UE establishes radio bearer.Optionally, wireless access network node can To be sent to UE about the information to interoperate between network (about the information to interoperate between network as described in step 401).

So far, start to interact in the Path Setup of first network, data between UE and common user's face data destination node.This Embodiment terminates.Incoherent step is omitted.

The schematic diagram for the method that Fig. 7 B interoperate between the network for the another exemplary embodiment of the present invention.UE second adheres to In the second network.UE establishes UE sessions after can establishing UE sessions or attachment in attachment.It can be to the second net there are two types of mode Network provides UE and adheres to information in the UE session informations and/or UE of first network, and mode 1 is forwarded by UE, such as step 7-202；Side Formula 2 is to inquire to obtain by public HSS/UDM, such as step 7-204；UE initiates the second attachment or the second session establishment second The attachment of network is as shown in Figure 7 B, and this approach includes the following steps：

Step 7-201 is connected between UE and wireless access network node and is established.UE can be carried to wireless access network node simultaneously For about the information to interoperate between network (as described in step 401).

Step 7-202, UE send attach request or session establishment request to core network control node.Wireless access network node Or UE can be provided to core network control node about the letter to interoperate between network (in attach request or session establishment request) It ceases (as described in step 401), such as at least one：Ability information (the ability information of double attachments of UE of double attachments of UE As described in step 401), the session information of UE, attachment information (the attachment information of UE and the session informations of UE of the UE in first network As described in step 401).

Step 7-203, core network control node inquire UE to public HSS/UDM, can indicate at least one：UE's The ability information of double attachments.

Step 7-204, according to the information that core network control node provides, HSS/UDM can return, about mutually being grasped between network The information (as described in step 401) of work, such as at least one：Whether UE allows double attachments, and the session information of UE, UE's is attached Information, the information of common user's face data destination node.

Step 7-205, after UE is verified, core network control node is to core network user face node (SGW, SMF, UDF) Send session establishment request.To supporting and allowing the UE of double attachments, mode one：Core network control node session establishment request in Core network user face node is provided the information (letter of user face data destination node of the anchor point user face data destination node of UE sessions Breath is as described in step 401)；Mode two：Core network control node is provided in session establishment request about interoperating between network Information (as described in step 401) determines whether that UE selects the anchor point user face data of UE sessions by core network user face node Destination node.The selection operation of user data destination node about UE sessions is as described in step 402, and details are not described herein again.

Step 7-206, core network user face node are built to the request of the anchor point user face data destination node of the UE sessions of selection Vertical UE sessions.

Step 7-207, common user's face data destination node can be identified according to UE be associated with session identification UE it is existing on Hereafter, the IP of UE constant (i.e. IPs of the UE in first network respective session) is kept, returning to session to core network user face node builds Vertical response.

Step 7-208, core network user face node return to session establishment response to core network control node.

Step 7-209, core network control node can send at least one after receiving to HSS/UDM：The session of UE Information, the attachment information of UE (the attachment information of UE and the session information of UE are as described in step 401).At this time in the session information of UE The network for establishing the session channel of UE has been updated to first network and the second network, the network that UE adheres in the attachment information of UE Also it is updated to be attached to first network and the second network.

Step 7-210, core network control node establish the context of UE to WLAN access point.Optionally, core net controls Node can be sent about the information to interoperate between network to WLAN access point or UE (about the information to interoperate between network as walked Described in rapid 401).

Step 7-211, wireless access network node can be that UE establishes radio bearer.Optionally, wireless access network node can To be sent to UE about the information to interoperate between network (about the information to interoperate between network as described in step 401).

So far, start to interact in the Path Setup of the second network, data between UE and anchor point user face data destination node, During this, also received and dispatched in the channel data of the second network between UE and anchor point user data destination node.The present embodiment terminates.No Related step is omitted.

Fig. 7 C are the schematic diagram about the method to interoperate between network of the another exemplary embodiment of the present invention.First net UE is switched to the second network by network.There are three types of mode can to the second network provide UE first network UE session informations and/or UE adheres to information, and mode 1 is sent by first network node, such as step 7-303；Mode 2 is forwarded by UE, such as step 7- 313；Mode 2 is to inquire to obtain by public HSS/UDM, such as step 7-304；Mode 3 passes through first network and the second network Between interface.As seen in figure 7 c, this approach includes the following steps：

Step 7-301, UE are to first network wireless access network node reporting measurement reports.First network wireless access network section Point judges handover event, and switching request is initiated to first network core net.

Step 7-302, first network core net find to be the second network belonging to Target cell.First network wireless access network Node judges the predetermined condition (as described in step 502) switched between UE meets network,

Step 7-303 first networks core net is to the second network core net switching request.Optionally, it is wrapped in the message Containing about the information to interoperate between network, as described in step 402.

Step 7-304, the second network core net node inquire UE to public HSS/UDM, can indicate at least one： The ability information switched between UE networks.

HSS/UDM can be returned about the information to interoperate between network, such as at least one：Whether UE allows network Between switch, the session information of UE, the attachment information of UE, information (the user face data destination node of common user's face data destination node Information as described in step 401).

Step 7-305, the second network control node send session establishment to core network user face node (SGW, SMF, UDF) Request.To supporting and allowing the UE of double attachments, mode one：Core network control node is in session establishment request to core network user Face node provides the information (information of the user face data destination node such as step 401 of the anchor point user face data destination node of UE sessions It is described)；Mode two：Core network control node provides in session establishment request about information (such as step to interoperate between network Described in 401), determine whether that UE selects the anchor point user face data destination node of UE sessions by core network user face node.About The selection operation of the user data destination node of UE sessions is as described in step 402, and details are not described herein again.

Step 7-306, the second core network user face node establish UE to the request of common user's face data destination node of selection Session.

Step 7-307, common user's face data destination node are that UE establishes session, and session is returned to core network user face node Establish response.

Step 7-308, the second network core network users face node return to session to the second network core network control node and build Vertical response.

Step 7-309, the second network core network control node can send at least one after receiving to HSS/UDM： The session information of UE, the attachment information of UE (the attachment information of UE and the session information of UE are as described in step 401).The meeting of UE at this time The network for the session channel for establishing UE in words information has been updated to the second network, the network of UE attachments in the attachment information of UE It is updated to be attached to the second network.

Step 7-310, the second network core network control node send switching request to the second network wireless net node.

Step 7-311, the second network radio access network node is that UE does switching preparation, to the second network core network control section Point returns to Handover Request Acknowledge.

Step 7-312, after UE is verified, the second network core net is true to first network core net return switching request Recognize.

Step 7-313, first network core net send the switching command about UE to first network wireless access network node.

Step 7-314, first network wireless access network node send the switching command about UE to UE.

It connects and establishes between step 7-315, UE and the second network radio access network node.UE can be simultaneously to wireless access Net node is provided about the information to interoperate between network (as described in step 401).

Step 7-316, the second network radio access network node notify the second core net node UE access.Second network wireless Access network node or UE can be provided about the information to interoperate between network to core network control node (such as step 401 institute simultaneously It states).

So far, finishing switching between UE networks.The present embodiment terminates.Incoherent step is omitted.

The example IV schematic diagram for the method that Fig. 8 A interoperate between a kind of network of the present invention.Wireless access network node and core The interface of heart net node interacts mutual information when establishing.As shown in Figure 8 A, this approach includes the following steps：

Step 8-101, wireless access network node are established to core net node transmission interface and are asked.Optionally, wireless access (double adhesive ability information of wireless access network are such as to double adhesive ability information of core net node transmission wireless access network for net node Described in step 401).

Step 8-102, core net node are established to wireless access network node transmission interface and are responded.Optionally, core net section Point sends at least one to wireless access network node：Topology information between network, double adhesive ability information (networks of core net Between topology information, double adhesive ability information of core net are as described in step 401).

So far, the present embodiment terminates.Incoherent step is omitted.

Five schematic diagram of embodiment for the method that Fig. 8 B interoperate between a kind of network of the present invention.Wireless access network node and nothing Interaction mutual information between line access node.As shown in Figure 8 B, this approach includes the following steps：

Step 8-201, the first wireless access network node are established request to the second wireless access network node transmission interface or are cut Change request.Optionally, the first wireless access network node is sent to the second wireless access network node about the letter to interoperate between network Cease the double attached of the wireless access network of (about the information to interoperate between network as described in step 401) or the first wireless access network node Ability information (double adhesive ability information of wireless access network are as described in step 401).

Step 8-202, the second wireless access network node are established response to the second wireless access network node transmission interface or are cut Change request confirmation message.Optionally, the second wireless access network node is sent to the first wireless access network node about mutual between network The information (about the information to interoperate between network as described in step 401) of operation or the wireless access of the second wireless access network node Double adhesive ability information of net (double adhesive ability information of wireless access network are as described in step 401).

So far, the present embodiment terminates.Incoherent step is omitted.

Fig. 9 A to Fig. 9 C are the embodiment for the method that three kinds of configuration UE carry out double attachment operations.

The schematic diagram for the method that Fig. 9 A interoperate between the network of exemplary embodiment of the present invention.Connected state UE is moved to The wireless access network node of second network, first network determines that UE carries out double attachment operations.As shown in Figure 9 A, this method include with Lower step：

Step 9-101, UE are to first network wireless access network node reporting measurement reports.First network wireless access network section Point judges handover event, and initiating switching to first network core net requires.

Step 9-102, first network core net find to be the second network belonging to Target cell.First network and the second network Between there is no interface, return to switching refusal to first network access network node, the reason of refusal is first network and the second network Between there is no interface.

Step 9-103, first network wireless access network node judge that UE meets predetermined condition (such as step 501 of double attachments It is described), configuration UE executes double attachment operations, as described in step 502.

Fig. 9 B are the schematic diagram about the method to interoperate between network of the another exemplary embodiment of the present invention.Connected state UE is moved to the second network, and the core net node of first network determines that UE carries out double attachment operations.As shown in Figure 9 B, this method packet Include following steps：

Step 9-201, UE are to first network wireless access network node reporting measurement reports.First network wireless access network section Point judges handover event, and switching request is initiated to first network core net node.

Step 9-202, first network core net node find to be the second network belonging to Target cell.First network and second There is no interface between network.First network core net node judges that UE meets the predetermined condition (as described in step 501) of double attachments, It configures UE and executes double attachment operations (as described in step 502), core net node can be returned to first network wireless access network node Return switching command.Optionally, double attachment operation informations (double attachment operation informations about UE about UE are included in the message As described in step 501).

Step 9-203, first network wireless access network node send switching command to UE.Optionally, it is wrapped in the message Containing double attachment operation informations about UE (double attachment operation informations about UE are as described in step 501).

Fig. 9 C are the schematic diagram about the method to interoperate between network of the another exemplary embodiment of the present invention.Idle state UE is moved to the second network, and UE oneself determines to carry out double attachment operations.As shown in Figure 9 C, this approach includes the following steps：

Step 9-301, UE move into the second network, and the session that UE is established in first network has data transfer needs.UE judges When meeting predetermined condition (as described in the step 601) of double attachments, the second attachment is initiated to the second network.Concrete operations such as Fig. 7 B institutes It states.

Figure 10 is the block diagram of the node for interoperating between network of exemplary embodiment of the present invention.

Exemplary embodiment according to the present invention, the node may include for receiving about the information to interoperate between network Receiving module and for according to reception about the information to interoperate between network in first network and/or the second network central control system The control module of operation about user equipment (UE).

Selectively, described to include at least one of following information about the information to interoperate between network：It is opened up between network Flutter information, the attachment information of UE, the session information of UE, the ability information of double attachments of UE, double adhesive ability information of core net, Double adhesive ability information of wireless access network, double attachment signing informations of UE, the ability information switched between the network of UE, core net Network between switching capability information, switching capability information between the network of wireless access network switches signing information between the network of UE, uses The selection information of family face data destination node.

Selectively, between the network topology information may include it is at least one in following information：Network where the node With other internetwork topology informations, first network and the second internetwork topology information；The attachment information of the UE include with At least one of lower information：Double attachment instructions, the whether existing attachments of UE, the existing attachment quantity of UE, the net of the network of UE attachments Network information；The session information of the UE includes at least one of following information：The mark of UE, UE is with the presence or absence of the double attachments of support Session, for UE with the presence or absence of the session that switches between network is supported, whether the user face data destination node of the session of UE is public User face data destination node, the mark of UE sessions, the IP address of UE in UE sessions, the anchor point user face data destination node of UE sessions Information, establish the network information of the network of UE session channels；Double adhesive ability information of the UE include in following information It is at least one：Whether double attachments are supported, if support unilateral wireless access, if support time-multiplexed unilateral wireless access, The network information for whether supporting bilateral wireless access, support while the network of attachment, does not support the network of the network adhered to simultaneously Information；Double adhesive ability information of the core net include at least one of following information：Whether support double attachments, supports same When the network information of network adhered to, whether dispose public user plane between network and other networks where core net node Whether data destination node disposes public user data management node where core net node between network and other networks；Institute The double adhesive ability information for stating wireless access network include at least one of following information：Whether double attachments are supported, if support The double attachments of configuration；Double attachment signing informations of the UE include at least one of following information：Whether UE allows double attachments, UE Allow the network information of the network of double attachments, UE that the network information of the network of double attachments, UE is not allowed or not the network of access The network information, UE do not allow the network information of the network of access；The ability information switched between the network of the UE includes following letter At least one of breath：Whether support to switch between network, support the network information of network switched between network, does not support between network The network information of the network of switching；Switching capability information includes at least one in following information between the network of the wireless access network It is a：Whether support to switch between network, if it supports to switch between Configuration network, supports the network information of the network switched between network, The network information of the network switched between network is not supported；Switching capability information includes in following information between the network of the core net It is at least one：Whether support to switch between network, supports the network information of the network switched between network, do not support to switch between network Network the network information, network where core net node and whether dispose public user face data between other networks and terminate Whether point disposes public user data management node where core net node between network and other networks；The net of the UE It includes at least one of following information to switch signing information between network：Whether UE allows to switch between network, and UE allows to cut between network The network information of the network changed, UE do not allow the network information of the network switched between network, UE to allow the network of the network of access Information, UE do not allow the network information of the network of access；The selection information of user face data destination node includes in following information It is at least one：The instruction of public user face data destination node is selected, the finger of UE session anchor point user face data destination nodes is selected Show.

Selectively, network where the node includes at least one in following information with other internetwork topology informations It is a：The information of the user face data destination node of network where the node, the subscriber information management section of network where the node The information of point, network where the node whether there is interface with other networks, network and other networks where the node it Between whether dispose public user face data destination node, network where the node and the user face data that other networks share are whole Whether the information of node disposes public subscriber information management node where the node between network and other networks, described The information for the subscriber information management node that network where node is shared with other networks, there are interfaces with network where the node Other networks the network information, with the node where network there is no interface other networks the network information, the section Point and the nodes of other networks are with the presence or absence of interface, and described with the node there are the nodal information of other nodes of interface There is no the nodal informations of other nodes of interface for node；First network and the second internetwork topology information include following information At least one of：First network and the second network whether there is interface, and the node of first network and the node of the second network are No there are interfaces, and public user face data destination node, first network and whether are disposed between first network and the second network Whether the information of the shared user face data destination node of two networks disposes public user's letter between first network and the second network Cease management node, the information for the subscriber information management node that first network and the second network share.

Selectively, the network information may include at least one of following information：Network type, network identity.In addition, section Point information may include at least one of following information：The mark of node, node group identification, node-node transmission layer address.

Optionally, the operation about UE may include at least one of following operation：Select suitable user plane number According to destination node and the session of UE is established, judges whether UE meets the predetermined conditions of double attachments, it will be about the letter to interoperate between network Breath is sent to UE, judges whether UE meets the predetermined condition switched between network.

Optionally, may include about the operation of UE：When the node is in first network, control module is obtained according to Know about the information that interoperates between network control in first network about the operation of UE and in first network and second The internetwork operation about UE, when the node in the second network when, control module know according to about network Between the information control operation about UE in the second network that interoperates.

Optionally, receiving module can be received from least one of following item about the information to interoperate between network：Core Net node, wireless access network node, the information management node of UE, UE, user face data destination node.

Selectively, the node includes at least one of following item：The node of first network, the section of the second network Point, the wireless access network node of first network, the core net node of first network, the wireless access network node of the second network, the The core net node of two networks, the information management node of UE, UE, user face data destination node.

Figure 11 is the block diagram of the node for interoperating between network of the another exemplary embodiment of the present invention.

The node includes：Determining module, is used to determine whether to meet that user equipment (UE) is double is attached to first network and the The predetermined condition of two networks；Control module, for meeting the bis- predetermined items for being attached to first network and the second network of UE when determination When part, double attachment operation informations about UE are determined.

Selectively, the UE is bis- is attached to first network and the predetermined condition of the second network may include in following item extremely It is one few：UE needs to move into the second network from first network, and interface is not present between first network and the second network, first network Interface is not present between node and the node of the second network, UE supports are double to be attached to first network and the second network, and core net is supported Double attachments, wireless access network node support double attachments, UE to allow execution is double to be attached to first network and the second network, and UE is attached First network, UE is not yet adhered in the second network, and there are the user face data of session and session establishment terminations by UE Point is first network and the public user face data destination node of the second network, and there are the demands of UE data transmissions.

Selectively, control module determines whether to meet the bis- predetermined conditions for being attached to first network and the second network of UE Operation may include：Control module determines whether to meet that UE is bis- to be attached to first network and according at least one of following information The predetermined condition of two networks：Topology information between first network and the second network, the attachment information of UE, the session information of UE, UE's The ability information of double attachments, double adhesive ability information of core net, the dual link ability information of wireless access network, double attachments of UE Signing information.

Selectively, double attachment operation informations about UE may include at least one of following item：It executes double attached Instruction, the network information of the second network, the information of the second network cell keeps first about the information to interoperate between network The instruction of network selects the instruction of anchor point user face data destination node, and the use of UE and the anchor point of UE sessions are established in the second network Data channel between the face data destination node of family.

Selectively, the node may also include sending module, wherein sending module will be operated about double attachments of UE to be believed Breath is sent at least one of following item：UE, the node of first network, the node of the second network, the wireless of first network connect Network access node, the core net node of first network, the wireless access network node of the second network, the core net node of the second network, The information management node of UE, user face data destination node.

Selectively, the node may include at least one of following item：First network node, first network it is wireless Access network node, the core net node of first network.

Figure 12 is the block diagram of the node for interoperating between network of the another exemplary embodiment of the present invention.

The node includes：Determining module, it is determined whether meet user equipment (UE) from first network to the net of the second network The predetermined condition switched between network；Control module, when determining that meet UE pre- from first network to switching the network of the second network When fixed condition, determine about handover operation information between the network of UE.

Selectively, the UE is included at least following from first network to the predetermined condition switched the network of the second network One of：UE needs to move into the second network from first network, and there are interfaces, UE to support from the first net between first network and the second network Network switches between the network of the second network, and core net supports UE to switch from first network to the network of the second network, wirelessly connects Network access node supports UE to switch from first network to the network of the second network, and UE allows to execute from first network to the second network Network between switch, UE is that first network and the second network are public there are the user face data destination node of session and the session establishment User face data destination node, there are the demands of UE data transmissions.

Selectively, determining module can be determined whether to meet according at least one of following information UE from first network to The predetermined condition switched between the network of second network：Topology information between first network and the second network, the attachment information of UE, UE's Session information, the ability information of double attachments of UE, switching capability information between the network of core net are cut between the network of wireless access network Transducing force information switches signing information between the network of UE.

Selectively, handover operation information may include at least one of following information between the network about UE：It holds Switch instruction, the network information of second network, the information of second network cell, about mutually being grasped between network between row network The information of work.

Selectively, the node may also include sending module, wherein sending module will be about handover operation between UE networks Information is sent at least one of following item：UE, the node of first network, the node of the second network, first network it is wireless Access network node, the core net node of first network, the wireless access network node of the second network, the core net section of the second network Point, the information management node of UE, user face data destination node.

Selectively, first node may include at least one of following item：First network node, first network it is wireless Access network node, the core net node of first network.

Figure 13 is the block diagram of the user equipment (UE) for interoperating between network of exemplary embodiment of the present invention.

The UE includes：Determining module, it is determined whether meet the condition to interoperate between network；Control module, it is full when determining When the condition to interoperate between sufficient network, interoperate between corresponding execution network.

Selectively, the condition to interoperate between the network may include at least one of following item：Determine that satisfaction is double attached It predetermined condition, receives double attachment operation informations about UE, receive about the operation information switched between network, between reception network The information of interoperability.

Selectively, when determining module, which determines, meets double attachment predetermined conditions, the executable double attachments of control module.Separately Outside, when determining module determination receives double attachment operation informations about UE, the executable double attachment operations of control module.This Outside, when determining module determination is received about the operation information switched between the network of UE, control module is cut between can perform network Change operation.

Optionally, the operations of the double attachments of control module execution may include at least one of one of following operation：Keep the The attachment of one network is in active state, and the UE sessions for being maintained at first network foundation are still in active state, and UE is to second Network initiates the second attachment, and UE requests establish the second channel of UE sessions to the anchor point user face data destination node of UE sessions, UE UE is provided at the session information of first network, anchor point user face data ends of the UE to the offer UE sessions of the second network to the second network The information of node, UE are sent to the second network about the information to interoperate between network.

Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art Member should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature Other technical solutions of arbitrary combination and formation.Such as features described above has similar work(with (but not limited to) disclosed herein Can technical characteristic replaced mutually and the technical solution that is formed.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of the invention god.

Claims

1. a kind of method for interoperating between network, wherein the method includes：

First node is known about the information to interoperate between network；

First node know according to about the information to interoperate between network in first network and/or the second network central control system Operation about user equipment (UE).

2. the method for claim 1, wherein it is described about the information to interoperate between network include in following information extremely It is one few：Topology information between network, the attachment information of UE, the session information of UE, the ability information of double attachments of UE, core net Double adhesive ability information, double adhesive ability information of wireless access network, double attachment signing informations of UE switch between the network of UE Ability information, switching capability information between the network of core net, switching capability information between the network of wireless access network, between the network of UE Switch signing information, the selection information of user face data destination node.

3. method as claimed in claim 2, wherein

Topology information includes at least one in following information between the network：Network where first node internetwork is opened up with other Flutter information, first network and the second internetwork topology information；And/or

The attachment information of the UE includes at least one of following information：Double attachment instructions, the whether existing attachments of UE, UE have Adhere to quantity, the network information of the network of UE attachments；And/or

The session information of the UE includes at least one of following information：The mark of UE, UE is with the presence or absence of the double attachments of support Session, for UE with the presence or absence of supporting the session that switches between network, whether the user face data destination node of the session of UE is public use Family face data destination node, the mark of UE sessions, the IP address of UE in UE sessions, the letter of the user face data destination node of UE sessions Breath, the network information of the network of UE session channels；And/or

Double adhesive ability information of the UE include at least one of following information：Whether double attachments are supported, if support single Side wireless access, if support time-multiplexed unilateral wireless access, if support bilateral wireless access, support to adhere to simultaneously The network information of network does not support the network information of the network adhered to simultaneously；And/or

Double adhesive ability information of the core net include at least one of following information：Whether support double attachments, supports same When the network information of network adhered to, whether dispose public user plane between network and other networks where core net node Whether data destination node disposes public user data management node where core net node between network and other networks；With/ Or

Double adhesive ability information of the wireless access network include at least one of following information：Whether support double attachments, is The no double attachments of support configuration；And/or

Double attachment signing informations of the UE include at least one of following information：Whether UE allows double attachments, UE to allow double The network information of the network of attachment, UE do not allow the network information of the network of double attachments, UE to allow the network letter of the network of access Breath, UE do not allow the network information of the network of access；And/or

The ability information switched between the network of the UE includes at least one of following information：Whether support to switch between network, The network information for supporting the network switched between network, does not support the network information of the network switched between network；And/or

Switching capability information includes at least one of following information between the network of the wireless access network：Whether support between network Switching, if support to switch between Configuration network, support the network information of network switched between network, do not support to switch between network The network information of network；And/or

Switching capability information includes at least one of following information between the network of the core net：Whether support to cut between network It changes, supports the network information of the network switched between network, do not support the network information of the network switched between network, core net node Whether dispose public user face data destination node between place network and other networks, network where core net node and other Whether public user data management node is disposed between network；And/or

It includes at least one of following information to switch signing information between the network of the UE：Whether UE allows to switch between network, UE allows the network information of the network switched between network, UE that the network information of the network switched between network, UE is not allowed or not to connect The network information of the network entered, UE do not allow the network information of the network of access；And/or

The selection information of the user face data destination node includes at least one of following information：Select public user plane number According to the instruction of destination node, the instruction of the user face data destination node of UE sessions is selected.

4. method as claimed in claim 3, wherein

Network where the first node includes at least one of following information with other internetwork topology informations：First segment The information of the user face data destination node of network where point, the information of the subscriber information management node of network where first node, Whether network where first node whether there is interface with other networks, disposed between network and other networks where first node Public user face data destination node, the letter for the user face data destination node that network where first node is shared with other networks Whether breath disposes public subscriber information management node, first node place between network and other networks where first node The information for the subscriber information management node that network is shared with other networks, there are other nets of interface with network where first node The network information of network, with first node where network there is no interface other networks the network information, first node and other The node of network whether there is interface, and there are the nodal informations of other nodes of interface with first node, are not deposited with first node In the nodal information of other nodes of interface；And/or

The first network and the second internetwork topology information include at least one of following information：First network and second Network whether there is interface, and the node of the node of first network and the second network is with the presence or absence of interface, first network and the second net Whether public user face data destination node, user face data destination node that first network and second network share are disposed between network Information, public subscriber information management node, first network and the second net whether are disposed between first network and the second network The information of the shared subscriber information management node of network.

5. the method as described in any one claim in claim 3 and 4, wherein

The information of the user face data destination node includes at least one of following information：Whether it is public user face data Destination node, the mark of user face data destination node, the transport Layer address of user face data destination node, user face data destination node IP address, the network information for the network that user face data destination node is supported, the net for the network that user face data destination node is not supported Network information；And/or

The information of the subscriber information management node includes at least one of following information：Subscriber information management node users are believed Cease the mark of management node, the transport Layer address of subscriber information management node, the net for the network that subscriber information management node is supported Network information.

6. the method as described in any one claim in claim 3 and 4, wherein

The network information includes at least one of following information：Network type, network identity；And/or

Nodal information includes at least one of following information：The mark of node, node group identification, node-node transmission layer address.

7. the method as described in any one claim in Claims 1-4, wherein the control operation about UE Including at least one of following operation：It selects suitable user face data destination node and establishes session or the session channel of UE, Judge whether UE meets the predetermined condition of double attachments and execute corresponding operating, will be sent to about the information to interoperate between network UE, judges whether UE meets the predetermined condition switched between network and execute corresponding operating.

8. the method as described in any one claim in Claims 1-4, wherein control the step of the operation about UE Suddenly include：When first node is in first network, first node know according to about the information to interoperate between network Control in first network about the operation of UE and in the internetwork operation about UE of first network and second, when first Node in the second network when, what first node was known according to controls about the information that interoperates between network in the second network In the operation about UE.

9. the method as described in any one claim in Claims 1-4, wherein first node is known about network Between interoperate information the step of obtain from least one of following item comprising the first node and interoperate about between network Information：Core net node, wireless access network node, the information management node of UE, UE, user face data destination node；And/or

First node includes at least one of following item：The node of first network, the node of the second network, the nothing of first network Line access node, the core net node of first network, the wireless access network node of the second network, the core net section of the second network Point, the information management node of UE, UE, user face data destination node.

10. a kind of for realizing the node to interoperate between network, wherein the node includes：

Receiving module, for receiving about the information to interoperate between network；

Control module, for according to reception about the information to interoperate between network in first network and/or the second network central control Make the operation about user equipment (UE).

11. a kind of method for interoperating between network, wherein the method includes：

First node determines whether to meet the double predetermined conditions for being attached to first network and the second network of user equipment (UE)；

When first node determination meets the bis- predetermined conditions for being attached to first network and the second network of UE, first node determines pass In double attachment operation informations of UE.

12. method as claimed in claim 11, wherein the bis- predetermined conditions for being attached to first network and the second network of the UE Including at least one of following item：UE needs to move into the second network from first network, is not deposited between first network and the second network It is not present interface between interface, the node of first network and the node of the second network, UE supports double to be attached to first network and the Two networks, core net support double attachments, and wireless access network node supports double attachments, UE allow to execute it is double be attached to first network and Second network, UE have attached to first network, and UE is not yet adhered in the second network, and there are session and the session establishments by UE User face data destination node be first network and the public user face data destination node of the second network, there are UE data transmissions Demand.

13. method as claimed in claim 11, wherein first node determines whether to meet that UE is bis- to be attached to first network and The step of predetermined condition of two networks includes：

First node determines whether to meet that UE is bis- to be attached to first network and the second network according at least one of following information Predetermined condition：Topology information between first network and the second network, the attachment information of UE, the session information of UE, double attachments of UE Ability information, double adhesive ability information of core net, the dual link ability information of wireless access network, UE double attachments signing letter Breath,

Wherein, first network and the second network include wireless access network and core net.

14. method as claimed in claim 11, wherein double attachment operation informations about UE include following item in extremely It is one few：Double attachment instructions are executed, the network information of the second network, the information of the second network cell interoperates about between network Information, keep the instruction of first network, select the instruction of anchor point user face data destination node, UE and UE are established in the second network Data channel between the user face data destination node of the anchor point of session.

15. method as claimed in claim 14, wherein first node determines double attachment operation information packets about UE It includes：First node will be sent at least one of following item about double attachment operation informations of UE：UE, the section of first network Point, the node of the second network, the wireless access network node of first network, the core net node of first network, the nothing of the second network Line access node, the core net node of the second network, the information management node of UE, user face data destination node.

16. the method as described in any one claim in claim 11 to 15, first node includes in following item It is at least one：First network node, the wireless access network node of first network, the core net node of first network.

17. a kind of node for interoperating between network, the node include：

Determining module is used to determine whether to meet the double predetermined conditions for being attached to first network and the second network of user equipment (UE)；

Control module, for when determine meet UE bis- predetermined conditions for being attached to first network and the second network when, decision about Double attachment operation informations of UE.

18. a kind of method for interoperating between network, the method includes：

First node determines whether to meet user equipment (UE) from first network to the predetermined condition switched the network of the second network；

When determination meets the UE from first network to the predetermined condition switched the network of the second network, first node determines About handover operation information between the network of UE.

19. method as claimed in claim 18, wherein the UE is pre- to switching the network of the second network from first network Fixed condition includes at least following one：UE needs to move into the second network from first network, exists between first network and the second network Interface, UE supports switch from first network to the network of the second network, and core net supports UE from first network to the second network Network between switch, wireless access network node support UE switch from first network to the network of the second network, UE allows to execute Switch from first network to the network of the second network, UE is there are the user face data destination node of session and the session establishment One network and the public user face data destination node of the second network, there are the demands of UE data transmissions.

20. method as claimed in claim 18, wherein first node determines whether to meet UE from first network to the second network Network between switch predetermined condition the step of include：First node determines whether to meet according at least one of following information UE is from first network to the predetermined condition switched the network of the second network：Topology information between first network and the second network, UE Attachment information, the session information of UE, the ability information of double attachments of UE, switching capability information between the network of core net, wirelessly Switching capability information between the network of net is accessed, switches signing information between the network of UE.

21. method as claimed in claim 18, the inter-network operations information about UE includes at least one：It executes Switch instruction between network, the network information of second network, the information of second network cell interoperates about between network Information.

22. the method as described in right wants 18, the first node is determined about between the network of UE the step of handover operation information Including：First node will be sent at least one of following item about handover operation information between UE networks：UE, first network Node, the node of the second network, the wireless access network node of first network, the core net node of first network, the second network Wireless access network node, the core net node of the second network, the information management node of UE, user face data destination node.

23. the method as described in any one claim in claim 18 to 22, wherein first node includes following item At least one of：First network node, the wireless access network node of first network, the core net node of first network.

24. a kind of node for interoperating between network, the node include：

Determining module, it is determined whether meet user equipment (UE) from first network to the predetermined item switched the network of the second network Part；

Control module determines to close when determination meets UE from first network to the predetermined condition switched the network of the second network The handover operation information between the network of UE.

25. a kind of for realizing the method to interoperate between first network and the second network, wherein the method includes：

User equipment (UE) determines whether to meet the condition to interoperate between network；

When determination meets the condition to interoperate between network, UE interoperates between executing corresponding network.

26. method as claimed in claim 25, interoperability includes handover operation between double attachment operations or network between the network.

27. the method as described in claim 25 or 26, wherein the condition to interoperate between the network include following item in extremely It is one few：It determines and meets double attachment predetermined conditions, know double attachment operation informations about UE, know about switching between network Operation information knows the information to interoperate between network；

The step of interoperability, includes between the corresponding network of UE execution：

When the double attachment predetermined conditions of determining satisfaction, operation is adhered in UE execution pair；

When knowing double attachment operation informations about UE, UE executes double attachment operations；

When knowing about handover operation information between the network of UE, UE executes handover operation between network.

28. method as claimed in claim 27, wherein it includes one of at least following operation that the UE, which executes the step of double attachments, At least one of：The attachment for keeping first network is maintained at UE sessions or the session channel of first network foundation, and UE is to second Network initiates the second attachment, and UE requests establish the second channel of UE sessions to the user face data destination node of UE sessions, and UE is to the Two networks provide UE in the session information of first network, anchor point user face data destination nodes of the UE to the offer UE sessions of the second network Information, UE to the second network send about the information to interoperate between network.

29. a kind of for realizing the user equipment (UE) to interoperate between network, wherein the UE includes：

Determining module, it is determined whether meet the condition to interoperate between network；

Control module interoperates when determination meets the condition to interoperate between network between corresponding execution network.