CN107409303A - It is determined that voice conversation is supported on PS when being supported in two roaming models, belonging to route and local breakthrough - Google Patents

It is determined that voice conversation is supported on PS when being supported in two roaming models, belonging to route and local breakthrough Download PDF

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Publication number
CN107409303A
CN107409303A CN201580077342.6A CN201580077342A CN107409303A CN 107409303 A CN107409303 A CN 107409303A CN 201580077342 A CN201580077342 A CN 201580077342A CN 107409303 A CN107409303 A CN 107409303A
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CN
China
Prior art keywords
plmn
ue
instruction
pdn gw
service
Prior art date
Application number
CN201580077342.6A
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Chinese (zh)
Inventor
R.凯勒
P.丹内布罗
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瑞典爱立信有限公司
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Application filed by 瑞典爱立信有限公司 filed Critical 瑞典爱立信有限公司
Priority to PCT/EP2015/054419 priority Critical patent/WO2016138940A1/en
Publication of CN107409303A publication Critical patent/CN107409303A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/12Setup of transport tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/18Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements or network protocols for addressing or naming
    • H04L61/15Directories; Name-to-address mapping
    • H04L61/1505Directories; Name-to-address mapping involving standard directories or standard directory access protocols
    • H04L61/1511Directories; Name-to-address mapping involving standard directories or standard directory access protocols using domain name system [DNS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08Mobility data transfer
    • H04W8/12Mobility data transfer between location registers or mobility servers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16Gateway arrangements

Abstract

The application is related to the concept for being named as S8 ownership routes, and the wherein control node in visited PLMN will set voice conversation on the PS standardized by 3GPP TS 23.401 to support instruction.However, in the prior art, if UE subscribes to IMS roaming services via Home PLMN, control node does not receive instruction from Home PLMN.Therefore, when the local breakthrough indicated by being " not allowing " such as parameter " permission of V PLMN addresses " is not allowed to, then UE do not know it whether IMS voice conversations on the successful PS of expectability.Present application addresses this problem, because introducing new parameter " permission of H PLMN addresses ", it is similar to " permission of the V PLMN addresses " parameter known, it is comprised in from the HSS in Home PLMN (110)(117)It is provided to visited PLMN(100)In control node (103,104) subscription information in.

Description

It is determined that on PS when being supported in two roaming models, belonging to route and local breakthrough Voice conversation is supported

Technical field

The present invention relates to via grouped data network gateway PDN GW to user equipment (UE) provide service method and apparatus, Wherein UE is serviced by visited public land mobile network V-PLMN, and wherein UE has and Home Public Land Mobile Network, HPLMN H- PLMN reservation.

Background technology

In typical cellular system(Also referred to as cordless communication network, communication network, PLMN(PLMN)Or Network)In, wireless terminal(Also referred to as mobile station and/or user equipment unit(UE))With radio access network(RAN)In Radio network node communicates.UE can be mobile terminal, and the core network by operator can be accessed by its subscriber(CN) The service of offer and operator RAN and CN provide access operator network-external service.Radio access network Network covers the geographic area for being divided into cell area, wherein each cell area is by base station(Such as radio base station (RBS))Service, it is also referred to as evolution NodeB (eNB), eNode-B, B node or base in some radio access networks Stand.Base station is communicated by operating the air interface on radio frequency with the user equipment in base station range.RAN can realize different Radio access technologies(RAT), such as Long Term Evolution(LTE), global system for mobile communications(GSM), Universal Mobile Telecommunications System (UMTS)、(Micro-wave access to global intercommunication (WiMAX) etc..

Under roaming case, have to Home Public Land Mobile Network, HPLMN (H-PLMN) operator reservation UE by by Visit PLMN (V-PLMN) service.If UE is intended to use the service in V-PLMN, as voice service on IMS, Then it can send request to the control node in V-PLMN.This request must be forwarded to packet data network by control node (PDN)PLMN is connected to service providing network by gateway, the gateway, and it can be operator's Internet Protocol (IP)Service network, such as IP multimedia subsystem(IMS).The operator and H-PLMN fortune that control node can be based on V-PLMN The Roaming agreements sought between business select PDN Gateway (PDN GW) for this particular UE.In addition, control node can have it is some other Indicate to select PDN GW.

The V13.1.0 of 3GPP standards TS 23.401 mention PDN GW selection functions in chapters and sections 4.3.8.1.According to this mark Standard, the distribution of PDN GW selection functions will access for 3GPP and provide the internuncial PDN GW of PDN.The function is used by H-PLMN Home subscriber servers(HSS)The subscriber information of offer.Body of the PDN subscription contexts provided by HSS at least containing PDN GW Part and APN(APN)Or APN and whether allow the instruction that PDN GW are distributed from the V-PLMN for this APN.Such as Fruit HSS provides the PDN subscription contexts for allowing that PDN GW are distributed from V-PLMN, and alternatively, the control section in V-PLMN Point is configured to know the suitable Roaming agreements that V-PLMN has with UE H-PLMN, then PDN GW selection functions are from V-PLMN Export PDN GW identity.If PDN GW identity can not be exported, or if subscribing does not allow to distribute PDN GW from V-PLMN, then Using APN PDN GW identity is exported from H-PLMN.

Standard GSMA PRD IR.92 V 8.0 it has been specified that, for being serviced by V-PLMN and with to H-PLMN's The roaming UE of reservation, only roaming model of the application with the PDN GW in V-PLMN.This roaming model is in GSMA PRD It is described in IR.65 V 8.0 and GSMA PRD IR.88 V 9.0.Therefore, V-PLMN control node needs to know and allowed pair In roaming UE local breakthrough(breakout), so as to set IMS voice conversations on PS to support instruction.GSMA PRD IR.92 standards it has been specified that, when can realize that the HSS in H-PLMN sets " V-PLMN addresses when being roamed with V-PLMN IMS Allow "(VPAA)Parameter, wherein specific subscriber is requirement such as the PDN in the V-PLMN described in GSMA PRD IR.88 GW IMS subscriber.

Therefore, home-operator can be indicated using VPAA, and subscriber is by allowing V-PLMN to select the PDN in V-PLMN GW and thus permission V-PLMN send IMS voice conversations on PS and support instruction to indicate UE expectability successful executions VoLTE Service and be authorized for the IMS subscriber of VoLTE roamings.It is also possible that home-operator can use VPAA instructions IMS to order Family is not authorized to carry out VoLTE roamings, and this is by refusing the PDN GW in V-PLMN selections V-PLMN and thus preventing V- The IMS voice conversations that PLMN sends PS support instruction to carry out.VPAA is that H-PLMN can be used to guide(steer)V-PLMN behaviors UE is still allowed to be connected to IMS APN unique instruction simultaneously.If received by V-PLMN control node from the HSS in H-PLMN VPAA be configured to " being allowed to ", then control node does not know whether select the PDN GW 105 in V-PLMN, even if Roaming model uses the PDN GW in H-PLMN.This concept has been named as S8HR(S8 ownership routes).If VPAA quilts It is arranged to " being not allowed to ", then control node must select the PDN GW in H-PLMN.In the case, if UE has subscribed for IMS voice conversations on IMS roaming services and the successful PS of expectability, the then not instruction from H-PLMN.That is, if V- Voice conversation on PS can be supported instruction to set to UE, the then not instruction from H-PLMN by the control node in PLMN.This can Control node is caused to support that even if subscriber is not the IMS subscriber for voice, and UE will not to voice conversation on UE instructions PS PDN is necessarily established to connect and attempt to register in ims.It can also be it is possible that this can cause to roam UE with roaming in advance Order, and voice conversation on PS can not be received and support instruction, and therefore when roaming will be without using VoLTE.

The content of the invention

The purpose of the present invention is to improve the service provision to roaming user equipment.This purpose is realized by independent claims. Advantageous embodiment is described in the dependent claims.

According to first aspect, there is provided a kind of to provide service to user equipment (UE) via grouped data network gateway PDN GW Method.UE is serviced by visited public land mobile network V-PLMN, and UE has and Home Public Land Mobile Network, HPLMN H- PLMN reservation.Methods described comprises the following steps:The H-PLMN instructions allowed are provided by the register in the H-PLMN, should Indicate whether to authorize the PDN GW in the H-PLMN to be selected for the UE to perform the service.Methods described Including following other step:The instruction allowed based on the H-PLMN, to the UE provide the UE whether clothes described in expectability The instruction of the successful execution of business.

According to second aspect, there is provided a kind of to serve the visited public land mobile network V-PLMN of user equipment (UE) In control node, wherein the UE has reservation with Home Public Land Mobile Network, HPLMN H-PLMN.The control node is fitted Ying Yu:The request for service is received from the UE;And the instruction that H-PLMN allows is received, the instruction indicates whether to authorize institute State the grouped data network gateway PDN GW in H-PLMN and be selected for the UE to perform the service.The control Node is further adapted to the instruction allowed based on the H-PLMN, to the UE provide whether the UE is serviced described in expectability into The instruction that work(performs.

According to the third aspect, there is provided a kind of to serve the visited public land mobile network V-PLMN of user equipment (UE) Control node in method, wherein the UE has reservation with Home Public Land Mobile Network, HPLMN H-PLMN.Methods described Comprise the following steps:The request for service is received from the UE;The instruction that H-PLMN allows is received, the instruction indicates whether to award Weigh the grouped data network gateway PDN GW in the H-PLMN and be selected for the UE to perform the service;And The instruction allowed based on the H-PLMN, to the UE provide the UE whether the finger of the successful execution serviced described in expectability Show.

According to fourth aspect, there is provided a kind of register in Home Public Land Mobile Network, HPLMN H-PLMN, it is stored The subscription data of user equipment (UE), wherein the UE has the reservation with the H-PLMN.The register is adapted to:Store H- The instruction that PLMN allows, the instruction indicate whether to authorize the grouped data network gateway PDN GW in the H-PLMN to be chosen to use In the UE to perform the service.The register is further adapted to the instruction that the H-PLMN allows being supplied to service In the visited PLMN of the UE(V-PLMN)Control node.

According to the 5th aspect, there is provided a kind of method in Home Public Land Mobile Network, HPLMN H-PLMN register, The subscription data of the register storage user equipment (UE), wherein the UE has the reservation with the H-PLMN.Methods described Comprise the following steps:The instruction that H-PLMN allows is stored, the instruction indicates whether to authorize the Packet Data Network in the H-PLMN Network diagram closes PDN GW and is selected for the UE to perform the service;And the H-PLMN instructions allowed are supplied to Serve the visited PLMN of the UE(V-PLMN)Control node.

The invention further relates to computer program, and it includes the part of software code or instruction, so as to by user's set and Method as described above is realized during at least one respective handling unit operation of recipient's device.Computer program can store On a computer-readable medium.Computer-readable medium can be in user's set or recipient's device or positioned at the permanent of outside Or recordable memory.Corresponding computer program for example can also be passed to use as signal sequence via cable or Radio Link Family device or recipient's device.

Brief description of the drawings

Below, with reference to the example embodiment that is shown in figure the present invention will be further described, in accompanying drawing:

Fig. 1 shows the block diagram for the embodiment for showing the roaming architecture for LTE/EPC;

Fig. 2 shows the flow chart shown according to one embodiment of the method for the invention;

Fig. 3 shows the flow chart shown according to one embodiment of the method for the invention;

Fig. 4 shows the block diagram for the embodiment for showing control node;

Fig. 5 shows the block diagram for the embodiment for showing register.

Embodiment

Below, in order to explain and unrestricted purpose, specific detail is elaborated to provide the thorough understanding of the present invention. The skilled person will be apparent that the present invention can be in the other embodiments for departing from these specific details by reality Trample.For example, although one exemplary embodiment combination LTE/EPC standard terminologys are described to show the present invention, but they equally may be used GSM applied to other species.Further, the present invention can be practiced in any network that mobile subscriber is attachable to In.

Those skilled in the art further to be appreciated that hardware circuit, software portion can be used in the function of explaining herein below Part or combinations thereof are realized.Application specific integrated circuit can be used in software part(ASIC)And/or digital signal processor(DSP)With The microprocessor or all-purpose computer of programming are pulled together.It will also be apparent that when the present invention is described as method, it also may be used Implement in computer processor and being coupled in the memory of processor, wherein memory by with one or more program codings, These programs perform this method when being executed by a processor.

In the context of the application, term " user equipment "(UE)Refer to that such as a people is for his or her individual The device for communicating and using.It can be telephong type device, such as phone or SIP phone, cell phone, mobile station, wireless phone, Or personal digital assistant type device, as laptop computer, notebook, the notepad connected equipped with wireless data.UE may be used also With non-human, as animal, plant or even machine is associated.UE can be equipped with SIM(Subscriber identity module), it includes uniqueness The IMSI that identity is such as associated with using UE subscriber(International Mobile Subscriber identity)And/or TMSI(Temporary Mobile Subscriber body Part).SIM presence has uniquely customized UE using the reservation of subscriber in UE.

In the context of the application, term " communication network " or abbreviation " network " can be indicated specifically for operation service (Such as telephone service or packet transmission service)The management of required node or entity, the transmission link of correlation and association Set.According to service, service is realized using different node types or entity.Virtual network operator possesses communication network, and will be real Existing service is supplied to its subscriber.The typical case of communication network is radio access network(Such as 2G, GSM, 3G, WCDMA, CDMA、LTE、WLAN、Wi-Fi), Mobile backhaul network or core network, such as IMS, CS core, PS cores.

In the context of the application, term " control node " refer to the service of the main subscriber for performing communication network with And the node of the communication network of the control procedure of session or calling.The term be commonly referred to as dispose control plane, subscriber data, Those entities of the communication network of service or the signaling traffic associated with the customer service in communication network.In packet-based core networks In network, control node can be MME(Mobile management entity)、SGSN(Service gateway support node)、P-CSCF(Agent call shape State control function)、S-CSCF(Serving CSCF)Or TAS(Telco application server)Node.

In the context of the application, PDN Gateway(PGW)Or PDN GW are by being used as exiting and entering for UE business Put to provide internuncial node from UE to external packet data networks.UE can have with being connected while more than one PGW Property is to access multiple PDN.The implementation of PGW implementation strategies, the packet filtering for each user, charging support, lawful intercept and Packet screening.

In the context of the application, the request for service may refer to initially attach or independent PDN connectivities please Ask, i.e. for the request of the service to specific PDN.

Showing in figure is schematical.In various figures, identical ginseng is provided to similar or same element Examine mark, or in the first numerically reference marker different from each other.

As shown in Figure 1, Long Term Evolution(LTE)The block core of/evolution(EPC)Framework supports packet switch(PS) Roaming, and with for global system for mobile communications(GSM)And WCDMA(WCDMA)The roaming disposed is similar.

Fig. 1 is to show to include Home Public Land Mobile Network, HPLMN (H-PLMN) 110 and visited public land mobile network (V- PLMN) the block diagram of the embodiment of the framework of 100 communication network.H-PLMN 110 refers to being registered as user equipment (UE) The network of 101 ownership.UE 101 for example can be in H-PLMN 110 and V-PLMN 100 internetwork roaming.V-PLMN 100 is included in The UMTS Terrestrial Radio Access Networks network (E-UTRAN) 102 of evolution and the packet core of the evolution in core side accessed on side The heart(EPC).E-UTRAN 102 is LTE air interface.E-UTRAN 102 includes base station, such as eNodeB(Do not show Go out), it enters line interface with user equipment.Only for showing purpose, H-PLMN 110 and V-PLMN 100 are separated by dotted line.

H-PLMN 110 includes home subscriber servers (HSS) 117, ownership PDN GW 115.PDN in H-PLMN 110 PDN GW 105 in GW 115 and V-PLMN 100 are connected to packet data network 106,116, packet data network 106,116 Operator's Internet Protocol is provided(IP)Service such as IP multimedia subsystem(IMS), PSS etc..IMS is to be used to deliver internet Agreement(IP)Multimedia service(As voice on voice on IMS or IP)Architecture framework.

HSS 117 is to include subscription data and the database of authentication data.HSS 117 is connected to V- via S6a interfaces Mobile management entity (MME) 103 in PLMN 100.MME 103 is for example responsible for customer equipment data session and selected suitably PDN GW 105、115.PDN GW 115 in H-PLMN 115 be in H-PLMN 110 to user equipment distribute and with reserving IP The node of location.PDN GW 115 also look after strategy and charging is implemented.

V-PLMN 100 further comprises gateway (SGW) 104, and it route and forwards user data packets, also simultaneously The mobility anchor of user plane is served as during switching between eNB, and is served as mobility between LTE and other 3GPP technologies Anchor.SGW 104 is connected via S1-U interface with V-PLMN 100 E-UTRAN 102.In addition, the SGW in V-PLMN 100 104 are connected to the PDN GW 115 in H-PLMN 110 via S8 interfaces.S8 interfaces are to provide the SGW 104 in V-PLMN 100 User between the PDN GW 115 in H-PLMN 110 and reference point between the PLMN of control plane.V- PLMN 100 further comprises PDN GW 105.PDN GW 105 in V-PLMN 100 also look after strategy and charging is implemented.

It is adapted to the UE 101 using voice service on the IP in IMS according to packet switch(PS)Upper IMS voice conversations branch The instruction held obtains whether it the arrangement of IMS voice conversations and receives voice service IP on and call the successful IP of expectability on Instruction.

Fig. 2 shows the flow of the one embodiment for the method for showing to provide service by V-PLMN to the UE 101 serviced Figure.When V-PLMN provides access to mobile communications network or PLMN, UE 101 is serviced by V-PLMN.UE 101 is connected to V-PLMN 100 access network, it is controlled by V-PLMN 100 core network node 103.In addition, UE 101 has and H- PLMN 110 reservation.In first step 210, the instruction of H-PLMN permissions, indicate whether to authorize the PDN in H-PLMN 110 GW 115 is selected for UE 101 to perform service.Service can be voice IP multimedia subsystem, IMS on IP(IMS)Service or Person can be supplied to any other kinds of services of the UE 101 with the reservation to IMS by IMS.The upper voice services of IMS also can quilt It is denoted as voice (VoIP) service on voice on LTE (VoLTE) service or IP.The instruction that H-PLMN allows can be by H-PLMN 110 In register 117 provide.Register 117 in H-PLMN 110 can be home subscriber servers(HSS).In addition, H- PLMN allow instruction can be encapsulated in including by the register 117 in H-PLMN 110 for UE 101 provide according to 3GPP In the PDN subscription contexts of the V13.1.0 of TS 23.401 subscriber data.The instruction is provided to the control in V-PLMN 100 Node 103 processed, it can be the MME in EPC networks.

In next step 230, based on H-PLMN allow instruction determine whether to UE101 provide UE 101 whether The instruction serviced described in expectability successful execution.If register 117 not yet provide H-PLMN permission instruction, not on The instruction of the successful execution of service is provided to UE 101.In another embodiment, if providing UE 101 to UE 101 is The judgement of the instruction of the successful execution of no expectability service may depend on the other designator of register.

In next step 240, to UE 101 provide UE 101 whether the instruction serviced described in expectability successful execution.Such as Fruit UE 101 receives this designator of the successful execution of service, then UE 101 will attempt the service of establishing.If for example, UE 101 have requested that VoIMS is serviced, and UE 101 receives the designator of the successful execution of instruction UE expectability services, then UE 101 will attempt to establish VoIMS sessions.If UE 101 receives the instruction UE 101 not successful executions of expectability service Instruction, then UE 101 will not continue to establish VoIMS connections, but attempt to be currently located at wherein can also cover UE 101 on the contrary The same area another CS networks on establish normal CS voice conversations.

Additional embodiment in Fig. 3, two instructions are provided by the register 117 in H-PLMN 110.In the first step In rapid 310, there is provided the instruction that H-PLMN allows, indicate whether to authorize the PDN GW 115 in H-PLMN 110 to be selected for UE 101 to perform service.In next step 320, there is provided the instruction that V-PLMN allows, indicate whether to authorize in V-PLMN 100 PDN GW 105 be selected for UE 101 to perform service.The instruction that V-PLMN allows can be that V-PLMN addresses allow 's(VPAA)Parameter.The two instructions can all be encapsulated in the PDN provided by the register 117 in H-PLMN 110 and subscribe up and down Wen Zhong.The two instructions are provided to the control node 103 in V-PLMN 100, and it can be the MME in EPC networks.

In next step 330, the instruction allowed based on the H-PLMN instructions allowed and V-PLMN is determined.This is sentenced It can also be performed calmly in V-PLMN 100 control node 103.Judge as a result, whether being carried in step 340 to UE 101 For UE 101 whether the instruction serviced described in expectability successful execution.

For to UE 101 send UE 101 whether expectability successful execution request service instruction when judgement, control Node 103 processed, which can be set the allowance in H-PLMN 110 and V-PLMN 100 now, to be taken into account.Therefore control node 103 has In the overall picture for having the allowance situation in the network 100 of its own and in UE 101 H-PLMN 110.

According to an embodiment of the invention, there is provided to UE 101 instruction, instruction:If instruction and H- that V-PLMN allows The PDN GW 115 in PDN GW 105 and H-PLMN 110 in the instruction instruction with no authorized V-PLMN 100 that PLMN allows UE 101 is selected for perform service, then the successful execution of the not expectability services of UE 101.This can be by sending out to UE 101 Negative is sent to indicate or carried out by not being sent to any instruction.

According to another embodiment of the present invention, if in the instruction that instruction or H-PLMN that V-PLMN allows allow at least The PDN GW 115 in PDN GW 105 or H-PLMN 110 in one authorization by direction V-PLMN 100 are selected for UE 101 perform service, then can provide the instruction of the successful execution of the UE 101 expectability services of instruction UE 101.If authorize UE 101 using at least one in the PDN GW 105,115 in V-PLMN 100 and H-PLMN 110 or the two, then by UE 101 it can be anticipated that the successful execution of service.

According to another embodiment of the present invention, the instruction allowed based on the H-PLMN instructions allowed and V-PLMN, by preferential Order performs PDN GW 105,115 selection so as to which service request to be routed to selected PDN GW 105,115.Can be in V- PDN GW 105,115 selection is performed in control node 103 in PLMN 100.This control node 103 can be MME or SGSN, or selection is responsible for for any other control node in the PS core networks of the gateway of service execution.In V- Control node 103 in PLMN 100 has been determined whether in PDN GW 105 or H-PLMN 110 in V-PLMN 100 PDN GW 115 should be used to carry out after the service of request, then Operator ID can be added to by control node 103 The APN provided via UE 101 or HSS 117(APN).If have selected for the PDN GW in H-PLMN 110 115, then control node 103 is from the data name server DNS request address in its own network (V-PLMN) 100.V-PLMN The DNS that DNS in 100 can be inquired about in H-PLMN 110, with obtain the address of the PDN GW 115 in H-PLMN 110 so as to The address route requests of reception.PDN GW 05,115 are selected it is meant that control node 103 is according to priority secondary by order is prioritized Sequence determines the value of instruction and the V-PLMN instructions allowed that H-PLMN allows.According to one embodiment, perform PDN GW 105, 115 selection to carry out in the following way to selected PDN GW 105,115 route service requests:If H-PLMN PDN GW 115 in the instruction authorization by direction H-PLMN 110 of permission are selected for UE 101 to perform service, then select first Select the PDN GW 115 in H-PLMN 110;And if this indicate whether it is fixed, then if V-PLMN allow instruction refer to Show and authorize the PDN GW 105 in V-PLMN 100 to be selected for UE 101 to perform service, then in selection V-PLMN 100 PDN GW 105.

According to another embodiment, PDN GW 105,115 selection is performed so as to selected PDN GW 105,115 tunnels Carried out in the following way by service request:If the PDN GW in the instruction authorization by direction V-PLMN 100 that V-PLMN allows 105 are selected for UE 101 to perform service, then select the PDN GW 105 in V-PLMN 100 first;And if this It is fixed to indicate whether, then if the PDN GW 115 in the instruction authorization by direction H-PLMN 110 that H-PLMN allows are selected for UE 101 performs service, then selects the PDN GW 115 in H-PLMN 110.If instruction and H-PLMN that V-PLMN allows The PDN GW 105 in PDN GW 115 and V-PLMN 100 in instruction authorization by direction H-PLMN 110 of permission are chosen Service is performed for UE 101, then PDN GW 105,115 priorization selection can cause different gateways, depending on The designator that the PLMN determined first allows.By defining priority order, it is possible to set in V-PLMN 100 about such as Put roaming UE 101 preference in where.This preference can be also based between V-PLMN 100 and H-PLMN 110 for UE 101 Roaming agreements.It can also be it is possible that being set in control node 103 in selection V-PLMN or H-PLMN PDN GW 105,115 any other preference.

According to another embodiment of the present invention, in selection V-PLMN 100 or in H-PLMN 110 in V-PLMN 100 PDN GW 105,115 preference can also be based on the APN APN provided by UE 101.This APN may include additional letter Breath, or can be entirely different and specific APN, as(" IMS ownership route " or " IMS-LBO ").

If APN provides via UE 101, or if IMS APN are used as UE 101 acquiescence APN APN, Then for selecting PDN GW 105,115 preference can be different in V-PLMN 100.As an advantage, UE 101 may energy Enough guide the selection of the PDN GW 105,115 in V-PLMN 100 or H-PLMN 110.

According to another embodiment of the present invention, if two designators(What H-PLMN allows and V-PLMN allowed)All refer to Show, authorize both PDN GW 105,115 in H-PLMN 110 and in V-PLMN 100 to be selected for UE 101 to perform clothes It is engaged in, then PDN GW 105,115 non-selected in V-PLMN 100 or H-PLMN 110(Not preferred PDN GW)It can be defined as standby With(fallback)Gateway, if the preferred PDN GW 105,115 for having been based on preference or other parameters selection can not be to UE 101 provide the service of request, then can select standby gateway.Non-selected PDN GW 105,115 are used as standby PDN GW 105th, 115, its can the PDN GW 105,115 selected before for example in an overload condition or due to the interruption in network and The PDN GW 105,115 of selection before quickly being replaced it in the case of no longer can access.With standby PDN GW 105, 115 the advantages of, is, if the PDN GW 105,115 of selection can not provide service, then need not repeat to determine to provide PDN GW 105th, 115 service.Control node just switches to standby PDN GW 105,115.

Table 1 shows the trip current that can be stored in V-PLMN 100 control node:

Table 1

If two designators all indicate not allowing the PDN GW 105,115 in V-PLMN 100 and H-PLMN 110(Last OK), then the designator for the service asked the expectability successful executions of UE 101 for not arriving UE 101.Nevertheless, service please H-PLMN 110 will be routed to keep the UE 101 of registration in ims using other services in H-PLMN 110 by asking, Even if specific request service is unavailable.If the service of request is voice service on IMS, and two designators are all negatives , then CS connections can be used to establish voice conversation for UE 101.

Fig. 4 shows the block diagram for showing the embodiment of control node 400 in V-PLMN according to an embodiment of the invention.Control Node 400 processed can be MMS or SGSN nodes.Control node 400, which is adapted to, serves UE, and it has via access network to H- PLMN reservation.Control node 400 includes being adapted to the receiver 410 that the request for service is received from UE.This request can quilt It is encapsulated in another message, or it can be particular service request.The request is via being currently serviced in UE access network Node is received.Receiver 410 is further adapted to receive the instruction that H-PLMN allows, and the instruction indicates whether to authorize H-PLMN In PDN GW be selected for UE to perform service.The instruction that H-PLMN allows can be encapsulated in via core network from H- In the PDN subscription contexts that register in PLMN receives.The instruction allowed according to this H-PLMN, control node 400 are known Whether operator has licensed the PDN GW in UE H-PLMN.Control node 400 includes processor 420, processor 420 Following judgement is made in the instruction and service request for being adapted to the permissions of the H-PLMN based on reception:There is provided via conveyer 430 to UE UE whether expectability successful execution request service instruction.

In the additional embodiment of the present invention, control node 400 is further adapted to receive V-PLMN via receiver 410 The instruction of permission, the instruction indicate whether to authorize the PDN GW in V-PLMN to be selected for UE to perform service.Processor 420 Could be made that about to UE send UE whether the judgement of the designator of the successful execution of expectability service, wherein this judge now it is another The instruction that other places is allowed based on V-PLMN.

According to one embodiment of present invention, if in the instruction that instruction or H-PLMN that V-PLMN allows allow at least One instruction instruction, authorizes the PDN GW in PDN GW or H-PLMN in V-PLMN to be selected for UE to perform service, then Processor 420 will draw following result:The finger of the successful execution of instruction UE expectability services is sent to UE via conveyer 430 Show.

According to one embodiment of present invention, if the instruction that instruction and H-PLMN that V-PLMN allows allow indicates do not have There are the PDN GW in PDN GW and H-PLMN in mandate V-PLMN to be selected for UE to perform service, then processor 420 will Draw following result:Do not send and indicate to UE, or send the success of instruction UE not expectability services to UE via conveyer 430 The instruction of execution.

According to another embodiment of the present invention, control node 400 is further adapted to:If the instruction that V-PLMN allows refers to Show and authorize the PDN GW in V-PLMN to be selected for UE to perform service, and the instruction that H-PLMN allows indicates with no authorized PDN GW in H-PLMN are selected for UE to perform service, then service request are routed into V-PLMN via conveyer 420 PDN GW.

According to another embodiment of the present invention, control node 400 is further adapted to:If the instruction that H-PLMN allows refers to Show and authorize the PDN GW in H-PLMN to be selected for UE to perform the service, and the designator that V-PLMN allows indicates do not have Have and authorize the PDN GW in V-PLMN to be selected for UE to perform service, then service request is routed to H-PLMN PDN GW。

According to another embodiment of the present invention, control node 400 is further adapted to:If H-PLMN allow instruction and PDN GW in the instruction authorization by direction V-PLMN that V-PLMN allows and in H-PLMN are selected for UE to perform service, then press Indicate service request being routed in the PDN GW or V-PLMN in H-PLMN according to the preference being stored in memory 440 PDN GW。

It is to be understood that shown structure is simply schematical in Fig. 4, and control node 400 can actually include Other component, for simplicity, these components are not yet shown, such as other interface.Such as, using the teaching of the invention it is possible to provide multiple networks Interface, they are configured to allow for communicating with different types of other nodes.Also, it is to be understood that storage entity can include in addition The code modules of type, these modules are not yet shown.

Fig. 5 shows the block diagram of the embodiment of the register 500 in the H-PLMN for showing UE.Register 500 can be returned Belong to subscriber server HSS, or any other storage device including the subscription data for UE.Register 500 includes:Storage Device 540, it is adapted to some UE of the reservation of operator of the storage with the H-PLMN being located therein to register 500 reservation Data 550.A part for UE subscription data 550 is the instruction that H-PLMN allows, and it indicates whether to authorize the PDN in H-PLMN GW is selected for UE to perform service.Register 500 further comprises:Receiver 510, it, which is adapted to from control node, receives Request for providing from the instruction that H-PLMN allows to request control node.Register 500 further comprises:Processor, it is suitable Should be in the memory 540 in control register 500.Register 500 further comprises:Conveyer 530, it is adapted to current clothes It is engaged in UE visited PLMN(V-PLMN)Control node provide H-PLMN allow instruction.The instruction that this H-PLMN allows is also The control node that can be supplied in PDN subscription contexts via conveyer in V-PLMN.

According to another embodiment of the present invention, register 500 can also include the finger of V-PLMN permissions in UE data 550 Show, the instruction indicates whether to authorize the PDN GW in V-PLMN to be selected for UE to perform service.This instruction also can be used PDN subscription contexts are supplied to the control node in V-PLMN via conveyer 530.

It is to be understood that shown structure is simply schematical in Figure 5, and register 500 can actually include separately Outer component, for simplicity, these components are not yet shown, such as other interface.Such as, using the teaching of the invention it is possible to provide multiple networks connect Mouthful, they are configured to allow for communicating with different types of other nodes.Also, it is to be understood that storage entity can include other class The code modules of type, these modules are not yet shown.

Furthermore, it is to be understood that above concept can be by using corresponding design will be by the one or more of existing apparatus The software or realized by using special purpose device hardware that reason device performs.Further, nodes described herein can be by single dress Put or by multiple devices(Such as the device cloud or system of cooperating device)Realize.

The invention further relates to computer program, and it includes software code or operation part, so as to when by user's set and Method described above is realized during at least one respective handling unit operation of recipient's device.Computer program can be stored in On computer-readable medium.Computer-readable medium can be in user's set or recipient's device or positioned at outside it is permanent or Recordable memory.Corresponding computer program can also be used as signal sequence to be for example delivered to user's dress via cable or Radio Link Put or recipient's device.

Claims (30)

  1. A kind of 1. side that service is provided via grouped data network gateway PDN GW (105,115) to user equipment (UE) (101) Method, wherein UE (101) are serviced by visited public land mobile network V-PLMN (100), and wherein UE(101)With with ownership PLMN H-PLMN (110) reservation, methods described comprise the following steps:
    - provided by the register (117,500) in the H-PLMN (100)(210)The instruction that H-PLMN allows, instruction instruction The PDN GW (115) in the H-PLMN (110) whether are authorized to be selected for the UE (101) to perform the service;
    - the instruction allowed based on the H-PLMN, is provided to the UE (101)(240)The UE(101)Whether described in expectability The instruction of the successful execution of service.
  2. 2. method according to claim 1, wherein methods described further comprise following steps:By the described of the UE (101) The register (117,500) in H-PLMN (110) provides the instruction that V-PLMN allows, and the instruction is indicated whether described in mandate PDN GW (105) in V-PLMN (100) are selected for the UE (101) to perform the service, and wherein to institute State UE (101) and the UE is provided(101)Whether the successful execution serviced described in expectability the instruction the step of further base In the instruction that the V-PLMN allows.
  3. 3. method according to claim 2, wherein the instruction that instruction and the H-PLMN that the V-PLMN allows allow is sealed Mounted in by for the UE(101)The H-PLMN (110) in the register provide PDN subscription contexts in.
  4. 4. according to the method for any one of Claims 2 or 3, wherein the instruction to the UE (101) indicates:If institute State in V-PLMN (100) described at least one instruction authorization by direction in the instruction of V-PLMN permissions or the instruction of H-PLMN permissions Or the PDN GW (105,115) in the H-PLMN (110) are selected for the UE(101)To perform the clothes Business, the then successful execution serviced described in UE (101) expectability.
  5. 5. according to the method for any one of claim 2 to 4, wherein based on the H-PLMN instructions allowed and the V- The instruction that PLMN allows, the selections of the PDN GW (105,115) is performed so as to by the service request road by order is prioritized By to selected PDN GW (105,115).
  6. 6. method according to claim 5, wherein performing the selections of the PDN GW (105,115) so as to selected PDN GW (105,115) route the service request and carry out in the following way:If the instruction that the H-PLMN allows refers to Show and authorize the PDN GW (115) in the H-PLMN (110) to be selected for the UE (101) to perform the service, then The PDN GW (115) in the H-PLMN (110) are selected first;And if this indicate whether it is fixed, then if the V- PDN GW (105) described in the instruction authorization by direction that PLMN allows in V-PLMN (100) be selected for the UE (101) so as to Perform the service, then select the PDN GW (105) in the V-PLMN (100).
  7. 7. method according to claim 5, wherein performing the selections of the PDN GW (105,115) so as to selected PDN GW (105,115) route the service request and carry out in the following way:If the instruction that the V-PLMN allows refers to Show and authorize the PDN GW (105) in the V-PLMN (100) to be selected for the UE (101) to perform the service, then The PDN GW (105) in the V-PLMN (100) are selected first;And if this indicate whether it is fixed, then if the H- PDN GW (115) described in the instruction authorization by direction that PLMN allows in H-PLMN (110) be selected for the UE (101) so as to Perform the service, then select the PDN GW (115) in the H-PLMN (110).
  8. 8. according to the method for any one of claim 2 to 4, wherein the instruction to the UE (101) indicates:If institute The instruction of the instruction and H-PLMN permissions of stating V-PLMN permissions indicates V-PLMN (100) and the H- described in no authorized The PDN GW (105,115) in PLMN (110) are selected for the UE(101)It is to perform the service, then described The successful execution that UE (101) is not serviced described in expectability.
  9. 9. according to the method for any one of claim 1 to 8, wherein the service is that voice multimedia subsystem, IMS takes on IP Business, and wherein arrive the UE(101)Instruction be on PS voice conversation support instruction.
  10. 10. according to the method for any one of claim 1 to 9, wherein the instruction that the V-PLMN allows is that V-PLMN addresses permit Perhaps VPAA parameters.
  11. 11. according to the method for any one of Claims 2 or 3, if wherein instruction and the H- of V-PLMN permissions The PDN in PDN GW (115) and the V-PLMN (100) in H-PLMN (110) described in the instruction authorization by direction that PLMN allows GW (105) is selected for the UE(101)To perform the service, then to providing the PDN GW's (105,115) serviced The selection is based on the preference in the V-PLMN (100).
  12. 12. method according to claim 11, wherein the V-PLMN(100)In the preference be based on by the UE(101) The APN APN of offer.
  13. 13. according to the method for any one of Claims 2 or 3, if wherein instruction and the H- of V-PLMN permissions The PDN in PDN GW (115) and the V-PLMN (100) in H-PLMN (110) described in the instruction authorization by direction that PLMN allows GW (105) is selected for the UE(101)To perform the service, then the PDN-GW in not preferred PLMN (105, 115) the PDN GW (105,115) for the offer service being selected as in preferable PLMN can not serve the UE (101)In the case of standby PDN-GW (105,115).
  14. 14. one kind is serving user equipment (UE)(101)Visited public land mobile network V-PLMN (100) in control section Point (103,400), wherein the UE(101)With the reservation with Home Public Land Mobile Network, HPLMN H-PLMN (110), and its Described in control node (103,400) be adapted to:
    - from the UE(101)Receive the request for service;
    - instruction that H-PLMN allows is received, the instruction indicates whether to authorize the packet data network in the H-PLMN (110) Gateway PDN GW (115) are selected for the UE(101)To perform the service;
    - the instruction allowed based on the H-PLMN, the UE is provided to the UE (101)(101)Whether service described in expectability Successful execution instruction.
  15. 15. control node (103,400) according to claim 14, wherein the control node (103,400) further adapts to In the instruction for receiving V-PLMN permissions, the instruction indicates whether to authorize the PDN GW (105) in the V-PLMN (100) selected Select for the UE (101) to perform the service, and wherein arrive the UE (101) UE(101)Whether can be pre- The instruction of the successful execution serviced described in phase is based further on the instruction that the V-PLMN allows.
  16. 16. control node (103,400) according to claim 15, wherein the instruction to the UE (101) indicates:Such as V-PLMN described at least one instruction authorization by direction in the instruction that the instruction or H-PLMN that V-PLMN described in fruit allows allow (100) the PDN GW (115) in the PDN GW (105) or the H-PLMN (110) in are selected for the UE (101)To perform the service, then the successful execution that is serviced described in UE (101) expectability.
  17. 17. control node (103,400) according to claim 15, wherein the instruction to the UE (101) indicates:Such as The instruction that the instruction and the H-PLMN that V-PLMN described in fruit allows allow indicates that V-PLMN (100) neutralizes institute described in no authorized The PDN GW (105,115) stated in H-PLMN (110) are selected for the UE(101)To perform the service, then The successful execution that the UE (101) is not serviced described in expectability.
  18. 18. control node (103,400) according to claim 15, wherein the control node (103,400) further adapts to In:If the PDN GW (105) in V-PLMN (100) described in the instruction authorization by direction that the V-PLMN allows are selected for institute UE (101) is stated to perform the service, and the instruction that the H-PLMN allows indicates H-PLMN (110) described in no authorized In the PDN GW (115) be selected for the UE (101) to perform the service, then the service request is route The PDN GW (105) into the V-PLMN (100).
  19. 19. control node (103,400) according to claim 15, wherein the control node (103,400) further adapts to In:If the PDN GW (115) in H-PLMN (110) described in the instruction authorization by direction that the H-PLMN allows are chosen to use In the UE (101) to perform the service, and the designator that the V-PLMN allows indicates V- described in no authorized The PDN GW (105) in PLMN (100) are selected for the UE (101) to perform the service, then by the clothes Business request is routed to the H-PLMN (110) the PDN GW (115).
  20. 20. control node (103,400) according to claim 15, wherein the control node (103,400) further adapts to In:If V-PLMN (100) described in the instruction authorization by direction that instruction and the V-PLMN that the H-PLMN allows allow is neutralized The H-PLMN(110)In the PDN GW (105,115) be all selected for the UE (101) to perform the clothes Business, then indicate the service request being routed to the H- according to the preference being stored in the control node (103,400) PLMN(110)In PDN GW(115)Or the PDN GW (105) in the V-PLMN (100).
  21. 21. according to the control node (103,400) of any one of claim 14 to 20, wherein the control node (103, 400) it is mobile management entity MME or Serving GPRS Support Node SGSN.
  22. 22. one kind is serving user equipment (UE)(101)Visited public land mobile network V-PLMN (100) control node Method in (103,400), wherein the UE(101)With the reservation with Home Public Land Mobile Network, HPLMN H-PLMN (110), And wherein methods described comprises the following steps:
    - from the UE(101)Receive the request for service;
    - instruction that H-PLMN allows is received, the instruction indicates whether to authorize the packet data network in the H-PLMN (110) Gateway PDN GW (115) are selected for the UE(101)To perform the service;
    - the instruction allowed based on the H-PLMN, the UE is provided to the UE (101)(101)Whether service described in expectability Successful execution instruction.
  23. 23. a kind of register (117,500) in Home Public Land Mobile Network, HPLMN H-PLMN (110), it stores user Equipment UE(101)Subscription data, wherein the UE(101)With the reservation with the H-PLMN (110), and wherein institute Register (117,500) is stated to be adapted to:
    The instruction that-storage H-PLMN allows, the instruction indicate whether to authorize the packet data network in the H-PLMN (110) Gateway PDN GW (115) are selected for the UE(101)To perform the service;
    - H-PLMN instructions allowed are supplied to and serve the UE(101)Visited PLMN(V-PLMN(100))Control Node processed(103,400).
  24. 24. register (117,500) according to claim 23, permits wherein providing the H-PLMN in PDN subscription contexts Perhaps instruction.
  25. 25. according to the register of claim 23 or 24(117,500), wherein the register (117,500) is home subscriber Server HSS.
  26. 26. a kind of method in the register (117,500) of Home Public Land Mobile Network, HPLMN H-PLMN (110), described to post Storage(117,500)Store user equipment (UE)(101)Subscription data, wherein the UE(101)With with the H-PLMN (110) reservation, and wherein methods described comprises the following steps:
    The instruction that-storage H-PLMN allows, the instruction indicate whether to authorize the packet data network in the H-PLMN (110) Gateway PDN GW (115) are selected for the UE(101)To perform the service;
    - H-PLMN instructions allowed are supplied to and serve the UE(101)Visited PLMN(V-PLMN(100))Control Node processed(103,400).
  27. 27. a kind of method in the register (117,500) of Home Public Land Mobile Network, HPLMN H-PLMN (110), described to post Storage(117,500)Store user equipment (UE)(101)Subscription data, wherein the UE(101)With with the H-PLMN (110) reservation, including the instruction that H-PLMN allows, the instruction indicate whether to authorize the H-PLMN(110)In packet count The UE is selected for according to network gateway PDN GW (115)(101)To perform the service.
  28. 28. a kind of computer program, it includes instruction, and the instruction at least one processor (420,520) when when performing At least one processor (420,520) is set to carry out the method according to any one of claim 1 to 13.
  29. 29. a kind of computer program product, including computer program according to claim 28.
  30. 30. a kind of carrier, the computer program containing claim 29, wherein the carrier is electronic signal, optics letter Number, one of radio signal, tape, CD or semiconductor memory.
CN201580077342.6A 2015-03-03 2015-03-03 It is determined that voice conversation is supported on PS when being supported in two roaming models, belonging to route and local breakthrough CN107409303A (en)

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CN109246769A (en) * 2017-05-05 2019-01-18 华为技术有限公司 A kind of PDU session establishing method and device

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WO2003015353A1 (en) * 2001-08-09 2003-02-20 Nokia Corporation Enabling active pdp contexts in additional plmns according to home operator information and/or subnetwork information
EP2664192B1 (en) * 2011-01-13 2016-06-15 Telefonaktiebolaget LM Ericsson (publ) Roaming control for ims apn

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