CN103843406A

CN103843406A - Mobile network sharing method and device

Info

Publication number: CN103843406A
Application number: CN201280001906.4A
Authority: CN
Inventors: 张艳平; 朱奋勤; 吴晓波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-09-29
Filing date: 2012-09-29
Publication date: 2014-06-04
Anticipated expiration: 2032-09-29
Also published as: WO2014047928A1; CN103843406B

Abstract

The present invention relates to a mobile network sharing method. The method comprises: when a UE in an idle state moves from an LTE network to a GERAN sharing network, acquiring an old PLMN ID or old RAI of a PS domain when the UE is in the LTE network; choosing a PLMN corresponding to the old PLMN ID or old RAI to act as a PLMN of the PS domain of the GERAN network of the UE, with the PLMN of the PS domain being the same as a PLMN of a CS domain selected by the UE in the LTE network. The mobile network sharing method provided in the embodiments of the present invention can avoid the problem that a UE cannot acquire a normal service due to a PLMN of a PS domain of a service subscriber being different from a PLMN of a CS domain.

Description

Mobile network sharing method and device

Technical field

The present invention relates to moving communicating field, and in particular to a kind of mobile network sharing method and device.Background technology

Existing long-term evolving network（Long Term Evolution, LTE) in, when the circuit switching for having multiple responsible speech datas（Circuit switching, CS) domain public land mobile network（Public Land Mobile Network, PLMN) can be with served user equipment (User Equipment, when UE), the PLMN in mobility management entity (Mobility Management Entity, MME) selection service UE CS domains or operator（operator ) .

In GSM EDGE wireless access networks（GSM EDGE Radio Access Network, GERAN) in GERAN networks, if there is Gs interface then by service universal grouping wireless service（General Packet Radio Service, GPRS) supporting node（Serving GPRS Support Node, SGSN) selection CS domains PLMN;Otherwise base station controller（Base Station Controller, BSC) select to service UE PLMN.Existing standard provides that the PLMN of CS domains and packet-switched domain (packet switch, PS) is consistent, and otherwise UE can not be normally carried out business.

UE initiates joint tracing section updating or attachment flow, MME have selected when LTE is resident

The PLMN in CS domains or operator.When UE is moved to GERAN from LTE, the ps domain PLMN that may result in access network element for UE selections is different with the PLMN in CS domains, so that UE can not obtain normal service.

Because a PLMN can only belong to an operator, one operator can include one or more PLMN, wherein same RAT CS domains are identical with the PLMN of ps domain, different RAT PLMN may be different, such as GERAN CS domains PLMN is identical with ps domain PLMN, but GERAN It is not necessarily identical with UTRAN PLMN, can be different.The invention provides a kind of method, it is ensured that service UE ps domain is identical with CS domains PLMN or operator.The content of the invention

It is an object of the invention to provide a kind of mobile network sharing method and device, to solve in the prior art

UE from LTE network be moved to GERAN networks when, it is impossible to ensure that CS domains are consistent with the PLMN of ps domain or operator, and cause the problem of UE can not obtain normal service.

On the one hand, the embodiments of the invention provide a kind of mobile network sharing method, methods described includes：UE in Idle state from LTE network be moved to GERAN share network when, obtain UE old PLMN ID or the old RAI of ps domain in LTE network;

The corresponding PLMN of old PLMN ID or the old RAI are selected as the PLMN of the ps domain for the GERAN networks for servicing the UE;The PLMN of the ps domain is identical with the CS domains PLMN that the UE is selected in the LTE networks.

In a kind of preferably embodiment of the embodiment of the present invention, described acquisition UE old PLMN ID or the old RAI of ps domain in LTE network is specifically included：

Receive mobile management network element transmission includes old PLMN ID or old RAI message, to obtain old PLMN ID or old RAI.

In a kind of preferably embodiment of the embodiment of the present invention, the corresponding PLMN of old PLMN ID or the old RAI are selected to include as the PLMN of the ps domain for the GERAN networks for servicing the UE：

The corresponding PLMN selection strategies of PLMN ID or RAI are locally configured in access network element, according to old PLMN ID or the RAI ID of the UE, corresponding PLMN selection strategies, selection PLMN services UE are locally being searched.

On the other hand, the embodiment of the present invention provides a kind of mobile network sharing method, and methods described includes：Receive the access request information for the Idle state UE that GERAN networks are moved to from LTE network； The old RAI information or old PLMN id informations of the UE is obtained according to the access request message；

The old RAI or old PLMN id informations are sent to base station controller area BSC, to cause the BSC to select PLMNs of the old RAI or corresponding PLMN of old PLMN ID as the PLMN, the PLMN of the ps domain and the UE of the ps domain of service UE GERAN networks the CS domains for servicing UE in the LTE identical.

In a kind of preferably embodiment of the embodiment of the present invention, it is described send the old RAI or old PLMN id informations to BSC after also include,

Judge whether UE shares network in GERAN, in the case where the UE is in the shared networks of GERAN, the old RAI or old PLMN are sent to BSC.

Judge whether UE is moved to GERAN from LTE and shares network, if the UE is to be moved to GERAN from LTE to share network, the old RAI or old PLMN are sent to BSC.

In a kind of preferably embodiment of the embodiment of the present invention, it is described judge institute UE whether be from

LTE be moved to GERAN share network method be：

Know that the UE is moved to GERAN from LTE at UE, wherein the shared network that the GERAN networks are.

In a kind of preferably embodiment of the embodiment of the present invention, the old PLMN id informations according to the access request message acquisition UE are specially：

The old RAI information in access request information is obtained, it is old PLMN ID that PLMN information is read from old RAI.

Another further aspect, the embodiment of the present invention provides a kind of mobile network sharing method, and methods described includes：Receive UE access request information；

UE CS domains PLMN is obtained or selected, the corresponding MME of the CS domains PLMN are selected Coding；

The unique interim subscriber identity information in the whole world is sent to the UE, the unique interim subscriber identity information in the whole world includes the MME Code, when UE is moved to GERAN networks, the NRI of the MME Code mapping is used for BSC and selects to service the PLMN of the ps domain of the GERAN networks of the UE, in a kind of preferably embodiment of the place embodiment of the present invention, the CS domains PLMN of the acquisition UE is specially：

UE CS domains PLMN/ operator's informaitons are received from mobile services switching centre.

In a kind of preferably embodiment of the embodiment of the present invention, the MME Code is the MME Code for ps domain NRI or the null NRI for including the CS domains PLMN.

In a kind of preferably embodiment of the embodiment of the present invention, when the PLMN disposes SGSN pool or when multiple SGSN can service UE, described MME Code includes null NRI.

Another further aspect, the embodiment of the present invention provides a kind of mobile network sharing method, and methods described includes：Receive base station controller BSC transmission includes the message of UE access request message；

The CS domains PLMN ID that message obtains UE CS reception services UE are sent to service UE old mobile management network element MME,

PLMN/ operators belonging to comparing and service UE CS domains PLMN/ operators, if the CS domains PLMN ID are sent to BSC by difference.

In a kind of preferably embodiment of the embodiment of the present invention, relatively more affiliated PLMN/ operators and service UE CS domains PLMN/ operators, if the CS domains PLMN ID are sent to BSC by difference, in addition to：

If do not included IMSI in the message including UE access request message that the BSC is sent, or the message including UE access request message that the BSC is sent would include redirecting trial label, then the CS domains PLMN information is sent into BSC.

In a kind of preferably embodiment of the embodiment of the present invention, the old movement to service UE Property managed network element MME send message and obtain user's context, be specially：

The old RAI in the access request message are obtained, and the old mobile management network element for servicing UE is searched according to the old RAI, user's context is obtained at the old mobile management network element got.Another further aspect, the embodiment of the present invention provides a kind of mobile network sharing method, and methods described includes：Receive UE includes the message of access request message；

The message for including the access request message is sent to the first mobile management network element；

Receive the CS domains PLMN id informations that first mobile management network element is sent；Manage network element；

Being sent to second mobile management network element includes the message of UE access request message, makes service same.

In a kind of preferably embodiment of the embodiment of the present invention, the second mobile management network element corresponding with the CS domains PLMN is selected according to the CS domains PLMN ID, is specially：

Selection service CS domain PLMN GPRS serving GPRS support node SGSN, or；

The SGSN of selection service CS domains PLMN operators.

In a kind of preferably embodiment of the embodiment of the present invention, the CS domains PLMN id informations that first mobile management network element is sent are received, in addition to,

Receive CS domains PLMN id informations and international mobile subscriber identity IMSI information that first mobile management network element is sent.

Another further aspect, the embodiment of the present invention also provides a kind of mobile network sharing device, and described device includes：Acquiring unit, for the UE in Idle state from LTE network be moved to GERAN share network when, obtain UE old PLMN ID or the old RAI of ps domain in LTE network;

Selecting unit, for selecting the corresponding PLMN conducts of old PLMN ID or the old RAI Service the PLMN of the ps domain of the GERAN networks of the UE;The PLMN of the ps domain with it is described

The CS domains PLMN that UE is selected in the LTE network is identical.

Another further aspect, the embodiment of the present invention also provides a kind of mobile network sharing device, and described device includes：Receiving unit, the access request information to receive the Idle state UE that GERAN networks are moved to from LTE network；

Acquiring unit, old RAI information or old PLMN id informations to obtain the UE according to the access request message；

Transmitting element, the old RAI or old PLMN id informations are sent to base station controller BSC, to cause the BSC to select PLMNs of the old RAI or corresponding PLMN of old PLMN ID as the PLMN, the PLMN of the ps domain and the UE of the ps domain of service UE GERAN networks the CS domains for servicing UE in the LTE identical.

Another further aspect, the embodiment of the present invention also provides a kind of mobile network sharing device, and described device includes：Receiving unit, the access request information for receiving UE；

Acquiring unit, the CS domains PLMN for obtaining or selecting UE selects the corresponding MME Code of the CS domains PLMN；

Transmitting element, for sending the unique interim subscriber identity information in the whole world to the UE, the unique interim subscriber identity information in the whole world includes the MME Code, when UE is moved to GERAN networks, the PLMN that the NRI of the MME Code mapping is used for the CS domains that BSC selects the PLMN, the PLMN of the ps domain and the UE that service the PS domains of the GERAN networks of the UE to service UE in the LTE is identical.

Another further aspect, the embodiment of the present invention also provides a kind of mobile network sharing device, and described device includes：Receiving unit, to receive BSC transmission include the message of UE access request message；Transmitting element, sends message to the old mobile management network element MME to service UE and obtains user's context, the context includes the CS domains PLMN ID for the CS reception services UE for servicing UE, Comparing unit, relatively more affiliated PLMN/ operators and service UE CS domains PLMN/ operators, if the CS domains PLMN ID are sent to BSC by difference.

Another further aspect, the embodiment of the present invention also provides a kind of mobile network sharing device, and described device includes：First receiving unit, receives UE access request message；

First transmitting element, the message for including the access request message is forwarded to the first mobile management network element；

Second receiving unit, to receive the CS domains PLMN ID information that first mobile management network element is sent；The second mobile management network element；

Second transmitting element, being sent to second mobile management network element includes the message of UE access request message, makes the PLMN in the CS domains that the PLMN and the UE of the ps domain service UE in the LTE identical.

Mobile network sharing method provided in an embodiment of the present invention, by way of obtaining ps domain PLMN/ operators corresponding with the CS domains old PLMN id informations, it is that UE selections are accessed with stating CS domains old PLMN ID identical ps domains PLMN/operator by access network element, so as to which the ps domain PLMN for avoiding BSC from selecting is different with the PLMN in CS domains, so that the problem of UE can not obtain normal service.Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, cylinder will be made to the required accompanying drawing used in embodiment or description of the prior art below singly to introduce, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the Organization Chart that Operator Core Network is shared by multiple operators； Fig. 2 is that wireless network architecture figure is shared by each and every one many operators；

Fig. 3 is the flow chart of the embodiment of mobile network sharing of embodiment of the present invention method one；

Fig. 4 is the interaction mode figure of the embodiment of mobile network sharing of embodiment of the present invention method one；Fig. 5 is the interaction mode figure of another embodiment of mobile network sharing method of the embodiment of the present invention；Fig. 6 is the interaction mode figure of another embodiment of mobile network sharing method of the embodiment of the present invention；Fig. 7 is the structure chart of another embodiment of mobile network sharing device of the embodiment of the present invention；

Fig. 8 is the structure chart of another embodiment of mobile network sharing device of the embodiment of the present invention；

Fig. 9 is the structure chart of the embodiment of mobile network sharing of embodiment of the present invention device one；

Figure 10 is the structure chart of another embodiment of mobile network sharing device of the embodiment of the present invention；

Figure 11 is the structure chart of another embodiment of mobile network sharing device of the embodiment of the present invention.Embodiment

Below by drawings and examples, technical scheme is described in further detail.Fig. 1 is the Organization Chart that Operator Core Network is shared by multiple operators, and Fig. 2 is that wireless network architecture figure is shared by multiple operators.The UE selection PLMN of network share are supported, and the PLMN of selection is sent to BSC, BSC notifies SGSN/MSC.BSC attempts different PLMN SGSN accesses in UE to not supporting network share, MOCN MOCN, untill success or whole SGSN refusal accesses.Gateway core net（Gateway Core Network, GWCN) in, the PLMN of service is determined by SGSN/MSC.

In GERAN network shares, UE to not supporting network share, as network needs to ensure that the PLMN/ operators of service user ps domain with the PLMN/ operators in service user CS domains are, if there is Gs interface, SGSN needs to select MSC operator consistent with oneself.If there is no Gs interfaces, TLLI is read to the UE being initially accessed, BSC（Temporary Logical Link Identifier, TLLI) in internet resource mark（Network Resource Identifier, NRI), if NRI is not effective, cooperated using CS/PS（Coordination) flow ensures CS domains and PS Domain operator is consistent.If NRI effectively, PLMN is determined according to NRI and local NRI and PLMN relation, corresponding SGSN is selected to send a message to the SGSN.

NRI of the present invention effectively, refers to the value of NRI in TLLI and in NRI list is locally configured.Wherein NRI is included in TLLI codings.In other implementations, all PLMN of service current region constitute a pool, and the NRI belongs to the pool, and now NRI is effective.

CS/PS coordination flows are the SGSN that the initial message of user is sent in multiple SGSN by BSC, and attempt label including redirecting（Redirection attempt flag), receive initial family only another ll codes (International Mobile Subscriber Identification Number,), IMSI being sent to BSC/RNC includes redirecting order label（Redirection command flag) message, message includes cause value " CS/PS coordination "；BSC reselects SGSN according to IMSI, and the initial message of user is sent into selected SGSN ,-rise be sent to the SGSN also include the IMSI of user.

Therefore, the embodiment of the present invention is configuration and the affiliated PLMN identicals selection PLMN strategies of MME on BSC；When user is moved to GERAN from LTE, BSC obtains the PLMN or user old Route Areas code belonging to service UE MME（Routing Area Identification, RAI), the CS domains PLMN selection strategies of PLMN or RAI according to belonging to MME, it is determined that service UE ps domain PLMN.Or when disposing MME Code, configuration MME Code corresponding with the PLMN/ operators in CS domains, MME Code can be mapped to the high eight-bit of the NRI fields in TLLI, under MOCN scenes, BSC reads NRI, the corresponding PLMN of NRI are selected so that it is determined that PLMN is user service, so as to ensure that the ps domain PLMN of BSC selections is identical with the PLMN in CS domains.

Fig. 3 is the flow chart of an embodiment of mobile network sharing method provided in an embodiment of the present invention, and the embodiment describes method provided in an embodiment of the present invention from as the base station controller BSC side of access network element.Methods described includes as seen from the figure：

Step 301, the UE in Idle state from LTE network be moved to GERAN share network when, Obtain UE old PLMN ID or the old RAI of ps domain in LTE network;

Specifically, after UE is moved to GERAN from LTE network shares network, by the service of shared Network Capture CS domains and ps domain service.In this embodiment, UE first accesses LTE, and CS services are obtained by a PLMN, and GERAN is moved to afterwards and shares network, sends access request, and request obtains ps domain service.

When UE accesses LTE obtains the service of CS domains and has multiple PLMN to provide the service of CS domains, the PLMN by the MME policy selection CS domains configured according to operator.The strategy of operator's configuration can be the unified selection CS domains PLMN strategy or the proprietary CS domains PLMN selection strategies of MME of MME operators configuration.When UE is moved to GERAN, GUMMEI (Global Unique MME Identifier, Μ Μ Ε global unique identifications）, RAI is mapped as, therefore can be locally configured in BSC and the affiliated PLMN of the MME, or the distinctive PLMN selection strategies of the MME.When BSC and multiple MME PLMN or multiple MME have the demand of communication, multiple PLMN or multiple MME PLMN selection strategies can be configured on BSC.When UE is accessed, BSC obtains old PLMN or the old RAI (i.e. GUMMEI) of UE accesses, searches BSC local policy configuration, obtains corresponding PLMN selection strategies.It should be strongly noted that what is configured on MME is the PLMN selection strategies in CS domains, and configured on BSC is then PS domains PLMN selection strategies, it is ensured that the selected CS domains of MME, BSC are identical with the PLMN in PS domains.

After corresponding PLMN is got, to the mobile management net element of the ps domain PLMN/ operators got（SGSN access request) is forwarded, so as to ensure that the ps domain PLMN for servicing UE is identical with the PLMN in CS domains.

In this embodiment, by being locally configured and MME identical PLMN selection strategies in the base station controller BSC as access network element, it is that UE selections are accessed with stating CS domains old PLMN ID identical ps domains PLMN/operator by access network element, so as to which the ps domain PLMN for avoiding BSC from selecting is different with the PLMN in CS domains, so that the problem of UE can not obtain normal service.

Fig. 4 is a kind of interaction mode reference of the embodiment for the mobile network sharing method that the present invention is provided Figure, as seen from the figure, methods described includes：

Step S401, BSC distributing radio resource receives the message that UE is sent to UE, and message includes the NAS message for issuing mobile management network element；

Specifically, in GERAN networks, access network element be BSC or BSS, the present invention in do not support the UE of network share refers to not support GERAN network shares UE.

Step S402, BSC send UE access request information to mobile management network element；

Specifically, the message that BSC is sent to mobile management network element is the access request message that UE is sent to mobile management network element, old RAI can be included in access request message, the access request is sent initially to BSC, then is transmitted to mobile management network element by BSC.

Because BSC does not know which PLMN can service UE, therefore BSC at will selects the access request of a mobile management network element forwarding user, while BSC can attempt label by redirecting（Redirect Attempt Flag) include being sent in the message in mobile management network element, the present embodiment, it is assumed that user's first choice is sent to mobile management network element SGSN1.

It should be noted that access request (also referred to as NAS request, the non access stratum Non-Access Stratums request of user in the present embodiment）, Attach request attach requests, the request of RAU request Routing Area Updates can be included but is not limited to.Access request refusal (also referred to as refuse by NAS reject, non access stratum Non-Access Stratums in the present invention）Message, can include but is not limited to attach reject attachments refusal, RAU reject Routing Area Updates refusal.(also as NAS accpet, Non-Access Stratum receives for access request receiving）, attach accept attachments receiving, RAU accept Routing Area Updates can be included but is not limited to and received, only illustrated in the present embodiment so that attach adheres to as an example.

GERAN, which includes redirecting, attempts label（Redirect attempt flag) message be upcoming base station subsystem and GPRS protocol messages.

Step S403, the old RAL that mobile management network element is obtained in access request message obtain the identification information for the old PLMN for indicating the UE, and PLMN now refers to the old PLMN information for serving ps domain； Specifically, SGSN1 services UE old mobile management network element before being searched according to old RAI, user's IMSI information is obtained to old mobile management network element.

If it is first access network to obtain failure or UE, mobile management network element obtains user's IMSI information from UE.

The old PLMN information that mobile management network element can be read from old RAI, judges that UE is roaming service customer according to IMSI, and old PLMN are the PLMN for having the LTE network using agreement with CS domains;Step S404, mobile management network element sends to redirect to BSC indicates message, and message includes old PLMN or old RAI information；

Optional SGSN may determine that UE is in shared network and just sends old PLMN or old RAI, on the contrary then do not send；

Whether wherein UE can be configured in shared network by operator in SGSN is realized, such as the BSC for configuring UE accesses is that multi-operator is shared, then UE is in shared network.

Optionally, SGSN may determine that UE is moved to GERAN from LTE, just send old PLMN or old RAI, on the contrary then do not send.

Wherein, UE is moved to GERAN from LTE, can be carried by UE in access request message

" P-TMSI type " is that " GUTI " is known.

Specifically, the instruction message that redirects includes redirecting instruction（Redirection indicaiton) message, the Reason For Denial value in message is CS/PS cooperations（coordination ) .

Step S405, BSC are according to old RAI or old PLMN and the PLMN that data determine service UE is locally configured;

Specifically, configuring the corresponding PLMN of LTE PLMN or RAI selection strategy on BSC, this selection strategy is tactful consistent with what is configured on old PLMN MME. Old PLMN select PLMN

PLMN1 PLMN A

PLMN2,3 PLMN B

PLMN4 PLMN C

Table 1

PLMN wherein in old PLMN and selection strategy can be one-one relationship as shown in table 1 or many-to-one relation.

Table 2

Wherein, the PLMN in old RAI and selection strategy can be one-to-one or many-to-one relation as shown in table 2.

Step S406, BSC send access request message to the corresponding mobile management network element of selection strategy；Specifically, SGSN2 can be the SGSN different from SGSN1, can also be exactly SGSN1.After this, if SGSN2 refusal UE accesses, being sent to access network element includes refusing the message that UE accesses message, and access network element forwards the refusal UE to access message to UE.

By above-described embodiment, multiple PLMN/RAI PLMN selection strategies are configured in BSC, BSC obtains PLMN or the corresponding Old RAI of MME belonging to MME to search the corresponding PLMN selection strategies of old RAI/PLMN, determines ps domain PLMN.Avoid, because CS domains PLMN and the inconsistent situations for causing UE can not obtain service of PS domains PLMN, improving Consumer's Experience.

Fig. 5 is the interaction mode of another embodiment of mobile network sharing method provided in an embodiment of the present invention with reference to figure, it is seen that methods described includes：

Step S501, UE send joint attachment/tracing section updating to mobile management network element and ask (combined attach, combined TAU request) message； Step S502, MME are received after message, obtain CS domain PLMN/operator, the corresponding mobile management network element coding of selection CS domains PLMN or operator（ MME Code, MMEC ) ；Specifically, the mode that CS domains PLMN/operator is obtained can have following several ways：The first, MME selection services UE CS domains PLMN/operator;

Second, MME sends location update request message to MSC under MOCN scenes, and the PLMN for receiving to update belonging to the MSC of request is CS domains PLMN/operator;

The third, under GWCN scenes, MME sends access request message to MSC, selects CS domain PLMN/operator by MSC, and notify MME;

Three of the above mode, only as an example, the present invention are not limited.

The corresponding MMEC of CS domains PLMN/ operators refers to：Include NRI or null NRI corresponding with PLMN MMEC, or, the MMEC of ps domain NRI or null NRI including CS domains PLMN, this the implementation NRI refers to a mark of the PLMN that can be identified for that out PS domains or operator (operator), and its specific expression form is not limited.

More specifically, when there is multiple CS domains PLMN/ operators（When a MME operator) can be serviced, each PLMN/ operators in CS domains（Operator) there is a NRI for being different from other PLMN, operator can configure multiple MME Code, and each MME Code includes an above-mentioned PLMN/ operator（Operator NRI);When above-mentioned PLMN/ operators（Operator when) ps domain NRI codings are different from the NRI in CS domains, MME Code should include the NRI of ps domain.For example, when the NRI in PLMN/operatorl CS domains is 1, when the ps domain NRI of the PLMN/operatorl is 2, it is 2 that MMEC, which includes NRI values,.

In addition, when the PLMN/ operators of shared network（Operator) setting up has MSC/ VLR Visitor Location Registers（Visitor Location Register), during VLR or SGSN pool, MMEC includes PLMN/ operators（Operator null-NRI);When PLMN/operator CS domains are different with the null-NRI of ps domain, MMEC includes PLMN/ operators（Operator) the null-NRI of ps domain.

When there is multiple CS domains PLMN to service a MME, the MME has multiple MMEC, So MME will select MMEC corresponding with CS domains PLMN NRI, illustrate：The corresponding NRI or null-NRI of CS domains PLMN for servicing the MME are 1,2,3 respectively;Binary coding is respectively 00,10,11;Then can be as shown in table 3 in MMEC coding：

Table 3

Any value of " x " mark 0,1 in the present embodiment；It should be noted that the position of NRI coding depends on the position that access network element in GERAN/UTRAN reads NRI, the present invention is not restricted.The present embodiment is only exemplified by being placed on minimum two.Provide that now MMEC is mapped as 23-16 of P-TMSI according to standard, 16-17 are read as NRI according to the present embodiment access network element, those positions in wherein access network element reading P-TMSI are configured as NRI by operator.

But, NRI position is identified in MMEC not as restriction, can be at minimum 2, can also be 2 in centre, etc..If the position that NRI is read in operator's configuration is 23-22, MMEC coding should be as shown in table 4.

Table 4

Step S504, MME send GUTI information to UE, and MMEC is included in GUTI information;Specifically, MME sends global unique temporary identity id information GUIT to UE, MMEC is included in GUIT after the UE corresponding MMEC of CS domains PLMN/operator are obtained.

Step S505, UE send the information for including network resource identifier to access network element； Specifically, UE is after GUTI is received, MMEC information is read wherein, and obtain network resource identifier NRI.

When UE is moved to GERAN networks, GUTI can be mapped as TLLI by UE, and wherein MMEC can be mapped as the field of the 23-16 in TLLI.NRI is sent to access network element.For example, being that NRI is encoded to some of BSC transmission TLLI, TLLI codings position such as 23- 18, BSC reads the NRI in TLLI in GERAN networks, corresponding SGSN forwardings UE access request message is selected according to NRI.In TLLI codings, NRI particular location is configured by operator in BSC.

Step S506, access network element forwards UE access request message to target mobility management network element.Specifically, access network element is after the information for including NRI of UE transmissions, such as TLLI is received, NRI is obtained.

It is that NRI is encoded to some of BSC transmission TLLI, TLLI codings position such as 23-16, BSC reads the NRI in TLLI in GERAN networks, corresponding SGSN forwardings UE access request message is selected according to NRI.In TLLI codings, NRI particular location is configured by operator in BSC.

Pass through the method for the present embodiment, the MMEC of the corresponding NRI codings of CS domains PLMN is sent to UE, when UE is moved to GERAN, it can be determined to service UE PLMN according to NRI, it is ensured that CS domains PLMN-cause of ps domain PLMN and the MME selection of selection.Avoid, because the inconsistent situations for causing UE can not obtain service of CS domains PLMN and ps domain PLMN, improving Consumer's Experience.

Fig. 6 is the interaction mode of another embodiment of mobile network sharing method provided in an embodiment of the present invention with reference to figure, it is seen that methods described includes：

Step S601, the flow between the UE of network share and BSC is not supported, and BSC distributing radio resources send message to UE, UE to BSC, and message includes the NAS message for issuing the first mobile management network element；

Step S602, due to being to share network, UE does not support network share, will not provide the PLMN of selection Such as randomly choosed according to local policy to BSC, BSC, it is the first SGSN that selection mobile management network element SGSN, which sends the network element that BSC is selected in UE access request message, this step, UE sends UE access request information to the first SGSN；BSC can attempt label by redirecting simultaneously（Redirect Attempt Flag) include being sent to the first SGSN in the message.

Specifically, UE sends access request message to the first SGSN, old RAI can be included in access request message, the access request is sent initially to BSC.

It should be noted that access request (also referred to as NAS request, the non access stratum Non-Access Stratums request of user in the present embodiment）, Attach request attach requests, the request of RAU request Routing Area Updates can be included but is not limited to.Access request refusal (also referred to as refuse by NAS reject, non access stratum Non-Access Stratums in the present invention）Message, can include but is not limited to attach reject attachments refusal, RAU reject Routing Area Updates refusal.(also as NAS accept, Non-Access Stratum receives for access request receiving）, attach accept attachments receiving, RAU accept Routing Area Updates can be included but is not limited to and received, only illustrated in the present embodiment so that attach adheres to as an example.

GERAN, which includes redirecting, attempts label（Redirect attempt flag) message be upcoming base station subsystem and GPRS agreements (Uplink BSSGP Unidata) message.

Step S603, the old RAL that the first SGSN is obtained in access request message include the CS domains PLMN ID for servicing UE according to old RAI user context informations;Wherein described CS domains PLMN is preserved by MME, can be that the present invention is not limited to be sent to MME by SGs interfaces after UE selections or MSC selections when MME is accessed before UE.

Step S604, if the first SGSN judges that PLMN and above-mentioned CS domains PLMN belonging to the MME are differed, message is sent to BSC；Breath can redirect to indicate message, and described redirect indicates that message includes redirecting the message for indicating (redirection indication). Optional SGSN may determine that UE is in shared network and just sends the CS domains PLMN ID, conversely, not sending then；

Optional SGSN, which may determine that, not to be included IMSI or includes to redirect to attempt label in the message that BSC is sent（Redirect attempt flag) just send CS domain PLMN ID.

Optionally, SGSN may determine that UE be from LTE be moved to GERAN when, just send the CS domains PLMN information, it is on the contrary then do not send.

Wherein, UE is moved to GERAN from LTE, and it is that " GUTI " is known that can carry " P-TMSI type " in access request message by UE.

Step S605, BSC obtain service UE CS domains PLMN, select corresponding 2nd SGSN of the PLMN, ensure that the CS domains PLMN is identical with the ps domain PLMN；

In same operator（Operator in the case of) having multiple PLMN, BSC can be according to locally with operator（Operator) selection and the CS domains same operators of PLMN（Operator SGSN), such as CS domains PLMN are PLMN1, belong to operatorl, operatorl deploys PLMN1, PLMN2, then BSC can also select PLMN2 SGSN to service UE.If SGSN and BSC interconnections without identical PLMN/Operator, BSC can select a SGSN to be used as the second mobile management network element according to IMSI hash algorithms.It should be strongly noted that when some step UE accesses CS domains in the future, BSC still can select a MSC according to identical IMSI hash algorithms, it is ensured that the MSC of selection is identical with the SGSN PLMN of selection.

Step S606, BSC are sent to the 2nd SGSN of the selection includes the message of user's access request message, and the message includes not including redirecting in UE IMSI, message attempting label (redirect attempt flag)；

The SGSN of step S607 the 2nd receive the message that BSC is sent, and the old RAI in the access request message search old mobile management network element MME and obtain user context information.On the user Context information includes the CS domains PLMN ID for servicing UE.

Receive after message, if including IMSI in the message that CS domains PLMN ID and PLMN ID belonging to the second mobile management network element are different but BSC is sent or without including redirecting trial label, do not send CS domains PLMN ID to BSC then, otherwise send CS domain PLMN ID to BSC.

By above-described embodiment, when UE is moved to GERAN from LTE, MME will service UE's

CS domains PLMN ID are sent to target mobility management network element (first, second mobile management network element i.e. in the present embodiment）, when target mobility management network element PLMN is different with CS domains PLMN, the BSC that target mobility management network element sends the CS domains PLMN, BSC selects corresponding SGSN according to the CS domains PLMN.Ensure the affiliated PLMN and CS domains PLMN-causes of SGSN, improve Consumer's Experience.

Accordingly, the embodiment of the present invention also provides a kind of mobile network sharing device, and mobile network sharing device can be BSC, and described device refers to Fig. 7, including：

Acquiring unit 701, for the UE in Idle state from LTE network be moved to GERAN share network when, obtain UE old PLMN ID or the old RAI of ps domain in LTE network;

Selecting unit 702, for selecting the corresponding PLMN of old PLMN ID or the old RAI as the PLMN of the ps domain for the GERAN networks for servicing the UE;The PLMN of the ps domain and acquiring unit 701 specifically for：The access request message is forwarded to the first mobile management network element SGSN1, the CS domains old RAI identification informations of the UE are obtained according to the access request message for SGSN1, the old PLMN ID in the CS domains for indicating UE identification information is obtained；

Receive the identification information of the old PLMN ID in the CS domains comprising the UE in the redirection configured information that mobility management entity is sent, the configured information；

According to the old PLMN ID in the CS domains of UE identification information, the ps domain PLMN corresponding with the old PLMN ID in the CS domains of UE identification information is searched local.

The mobile network sharing device is stored with the selection strategies of PLMN second being locally configured, the choosing The first choice strategy configured on the mobile management entity for selecting the old PLMN ID in the tactful CS domains with the UE is consistent；

Identification information of the acquiring unit 701 according to the old PLMN ID in the CS domains, selects corresponding ps domain PLMN in the second selection strategy being locally configured.

As shown in figure 8, the embodiment of the present invention also provides a kind of mobile network sharing device, the mobile network sharing device can be a kind of SGSN, and described device includes：

Receiving unit 801, the access request information to receive the Idle state UE that GERAN networks are moved to from LTE network；

Acquiring unit 802, old RAI information or old PLMN id informations to obtain the UE according to the access request message；

Transmitting element 803, the old RAI or old PLMN id informations are sent to BSC, select the old RAI or corresponding PLMN of old PLMN ID identical as the PLMN in the PLMN, the PLMN of the ps domain and the UE of the ps domain of service UE GERAN networks the CS domains for servicing UE in the LTE for the access network element.

By above-described embodiment, multiple PLMN/RAI PLMN selection strategies are configured in BSC, BSC obtains PLMN or the corresponding Old RAI of MME belonging to MME to search the corresponding PLMN selection strategies of old RAI/PLMN, determines ps domain PLMN.Avoid, because CS domains PLMN and the inconsistent situations for causing UE can not obtain service of PS domains PLMN, improving Consumer's Experience.As shown in figure 9, the embodiment of the present invention also provides a kind of mobile network sharing device, in the present embodiment, mobile network sharing device is mobility management entity MME, and described device includes： Receiving unit 901, the access request information for receiving UE；

Acquiring unit 902, the CS domains PLMN for obtaining or selecting UE selects the corresponding MME Code of the CS domains PLMN；

Transmitting element 903, for sending the unique interim subscriber identity information in the whole world to the UE, the unique interim subscriber identity information in the whole world includes the MME Code, when UE is moved to GERAN networks, the NRI of the MME Code mapping is used for BSC and selects to service the PLMN in the PS domains of the GERAN networks of the UE, and the ps domain PLMN is identical with the CS domains PLMN.

Pass through the mobile network sharing device of the present embodiment, the MMEC of the corresponding NRI codings of CS domains PLMN is sent to UE, when UE is moved to GERAN, it can be determined to service UE PLMN according to NRI, it is ensured that CS domains PLMN-cause of ps domain PLMN and the MME selection of selection.Avoid, because the inconsistent situations for causing UE can not obtain service of CS domains PLMN and ps domain PLMN, improving Consumer's Experience.

Accordingly, the embodiment of the present invention also provides a kind of mobile network sharing device, and mobile network sharing device can be SGSN, and described device refers to Figure 10, including：

Receiving unit 1001, to receive BSC transmission include the message of UE access request message；User's context is obtained, the CS that the context includes servicing UE receives the CS domains PLMN ID for servicing UE;

Comparing unit 1003, relatively more affiliated PLMN/ operators and service UE CS domains PLMN/ operators, if the CS domains PLMN ID are sent to BSC by difference.

Processing unit 1004, if the CS domains PLMN ID are sent to BSC by difference, if identical, allows the UE to access.

By above-described embodiment, when UE is moved to GERAN from LTE, the CS domains PLMN ID for servicing UE are sent to target mobility management network element (first, second mobile management network element i.e. in the present embodiment by MME）, when target mobility management network element PLMN is different with CS domains PLMN, target is moved The BSC that mobility management network element sends the CS domains PLMN, BSC select corresponding SGSN according to the CS domains PLMN.Ensure the affiliated PLMN and CS domains PLMN-causes of SGSN, improve Consumer's Experience.

Accordingly, the embodiment of the present invention also provides a kind of mobile network sharing device, and mobile network sharing device can be BSC, and described device refers to Figure 11, including：

First receiving unit 1101, receives UE access request message；

First transmitting element 1102, the message for including the access request message is forwarded to the first mobile management network element；

Second receiving unit 1103, to receive the CS domains PLMN id informations that first mobile management network element is sent；Corresponding second mobile management network element；

Second transmitting element 1105, being sent to second mobile management network element includes the message of UE access request message, makes service UE ps domain identical with CS the domains PLMN or operator.

Said apparatus is used for the purpose of realizing the virtual bench of the above method, the functional unit that unit is divided only for method and step, those skilled in the art should be appreciated that, in order to realize corresponding method, can be integrated in the same processor by unit, or realized by hardware, it should not be construed as limiting the invention.

Professional should further appreciate that, be described with reference to the embodiments described herein The unit and algorithm steps of each example, it can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate the interchangeability of hardware and software, the composition and step of each example are generally described according to function in the above description.These functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel can realize described function to each specific application using distinct methods, but this realization is it is not considered that beyond the scope of this invention.

The step of method or algorithm for being described with reference to the embodiments described herein, can be implemented with hardware, the software module of computing device, or the combination of the two.Software module can be placed in random access memory (RAM), internal memory, read-only storage（ROM in), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, any other form of storage medium well known in CD-ROM, or technical field.

Above-described embodiment; the purpose of the present invention, technical scheme and beneficial effect are further described; it should be understood that; it the foregoing is only the embodiment of the present invention; the protection domain being not intended to limit the present invention; within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., should be included in the scope of the protection.

Claims

Claims

1st, a kind of mobile network sharing method, it is characterised in that methods described includes：

User equipment (UE) in Idle state from LTE network be moved to GERAN share network when, obtain UE ps domains in LTE network old PLMN ID or old RAI;

The CS domains PLMN for selecting the corresponding PLMN of old PLMN ID or the old RAI to be selected as the PLMN, the PLMN of the ps domain and the UE of the ps domain for the GERAN networks for servicing the UE in the LTE networks is identical.

2nd, the mobile network sharing method as described in claim 1, it is characterised in that described acquisition UE old PLMN ID or the old RAI of ps domain in LTE network is specifically included：

Receive mobile management network element transmission includes old PLMN ID or old RAI message, to obtain old PLMN ID or old RAI.

3rd, mobile network sharing method as claimed in claim 2, it is characterised in that the corresponding PLMN of selection old PLMN ID or the old RAI include as the PLMN in the PS domains for the GERAN networks for servicing the UE：

The corresponding PLMN selection strategies of PLMN ID or RAI are locally configured in access network element, old PLMN ID or the RAI ID according to the UE are locally searching corresponding PLMN selection strategies, selection PLMN services UE.

4th, a kind of mobile network sharing method, it is characterised in that methods described includes：

Receive the access request information for the Idle state UE that GERAN networks are moved to from LTE network；The old RAI information or old PLMN id informations of the UE is obtained according to the access request message；

The old RAI or old PLMN id informations are sent to base station controller BSC, to cause the BSC to select PLMNs of the old RAI or corresponding PLMN of old PLMN ID as the PLMN, the PLMN of the ps domain and the UE of the ps domain of service UE GERAN networks the CS domains for servicing UE in the LTE identical. 5th, mobile network sharing method as claimed in claim 4, it is characterised in that it is described send the old RAI or old PLMN id informations to BSC after also include,

Judge whether UE shares network in GERAN, in the case where the UE is in the shared networks of GERAN, the old RAI or old PLMN are sent to BSC.

6th, mobile network sharing method as claimed in claim 4, it is characterised in that it is described send the old RAI or old PLMN id informations to BSC after also include,

Judge whether UE is moved to GERAN from LTE and shares network, if the UE is to be moved to GERAN from LTE to share network, the old RAI or old PLMN are sent to BSC.

7th, mobile network sharing method as claimed in claim 6, it is characterised in that described judges whether institute UE is to be from the LTE methods for being moved to the shared networks of GERAN：

Know that the UE is moved to GERAN from LTE at UE, wherein the shared network that the GERAN networks are.

8th, mobile network sharing method as claimed in claim 4, it is characterised in that it is described the UE is obtained according to the access request message old PLMN id informations be specially：

The old RAI information in access request information is obtained, it is old PLMN ID that PLMN information is read from old RAI.

9th, a kind of mobile network sharing method, it is characterised in that methods described includes：

Receive UE access request information；

UE CS domains PLMN is obtained or selected, the corresponding MME codings of the CS domains PLMN are selected；

The unique interim subscriber identity information in the whole world is sent to the UE, the unique interim subscriber identity information in the whole world includes the MME Code, when UE is moved to GERAN networks, the NRI of the MME Code mapping is used for BSC and selects to service the PLMN of the ps domain of the GERAN networks of the UE, institute 10, mobile network sharing method as claimed in claim 9, characterized in that, the acquisition UE CS domains PLMN be specially：

UE CS domains PLMN/ operator's informaitons are received from mobile services switching centre.

11st, the mobile network sharing method as described in claim 9, it is characterised in that the MME is encoded to the MME Code of ps domain NRI or the null NRI including the CS domains PLMN.

12nd, the mobile network sharing method as described in claim any one of 6-8, it is characterised in that when the PLMN disposes SGSN pool or when multiple SGSN can service UE, described MME codings include null NRL

13rd, a kind of mobile network sharing method, it is characterised in that methods described includes,

Receive base station controller BSC transmission includes the message of UE access request message；

The CS domains PLMN ID that message obtains UE CS reception services UE are sent to service UE old mobile management network element MME;

PLMN/ operators belonging to comparing and service UE CS domains PLMN/ operators, if the CS domains PLMN ID are sent to BSC by difference.

14th, mobile network sharing method according to claim 13, it is characterised in that PLMN/ operators belonging to relatively and service UE CS domains PLMN/ operators, if different by the CS domains PLMN

ID is sent to BSC, in addition to：

If do not included IMSI in the message including UE access request message that the BSC is sent, or the message including UE access request message that the BSC is sent would include redirecting trial label, then the CS domains PLMN information is sent into BSC.

15th, mobile network sharing method as claimed in claim 13, it is characterised in that described to service

UE old mobile management network element MME sends message and obtains user's context, is specially：

The old RAI in the access request message are obtained, and the old mobile management network element for servicing UE is searched according to the old RAI, user's context is obtained at the old mobile management network element got.

16th, a kind of mobile network sharing method, it is characterised in that methods described includes,

Receive UE includes the message of access request message； The message for including the access request message is sent to the first mobile management network element；Receive the CS domains PLMN id informations that first mobile management network element is sent；Manage network element；

Being sent to second mobile management network element includes the message of UE access request message, makes service same.

17th, mobile network sharing method according to claim 16, it is characterised in that the second mobile management network element corresponding with the CS domains PLMN is selected according to the CS domains PLMN ID, be specially：

Selection service CS domain PLMN GPRS serving GPRS support node SGSN, or；

The SGSN of selection service CS domains PLMN operators.

18th, method according to claim 16, it is characterised in that receive the CS domains PLMN id informations that first mobile management network element is sent, in addition to,

Receive CS domains PLMN id informations and international mobile subscriber identity IMSI information that first mobile management network element is sent.

19th, a kind of mobile network sharing device, it is characterised in that described device includes：

Acquiring unit, for the UE in Idle state from LTE network be moved to GERAN share network when, obtain UE old PLMN ID or the old RAI of ps domain in LTE network;

Selecting unit, for selecting the corresponding PLMN of old PLMN ID or the old RAI as the PLMN of the ps domain for the GERAN networks for servicing the UE;The PLMN of the ps domain is identical with the CS domains PLMN that the UE is selected in the LTE network.

20th, a kind of mobile network sharing device, it is characterised in that described device includes：

Receiving unit, the access request information to receive the Idle state UE that GERAN networks are moved to from LTE network； Acquiring unit, old RAI information or old PLMN id informations to obtain the UE according to the access request message；

Transmitting element, the old RAI or old PLMN id informations are sent to base station controller BSC, to cause the BSC to select PLMNs of the old RAI or corresponding PLMN of old PLMN ID as the PLMN, the PLMN of the ps domain and the UE of the ps domain of service UE GERAN networks the CS domains for servicing UE in the LTE identical.

21st, a kind of mobile network sharing device, it is characterised in that described device includes：

Receiving unit, the access request information for receiving UE；

Acquiring unit, the CS domains PLMN for obtaining or selecting UE selects the corresponding MME Code of the CS domains PLMN；

Transmitting element, for sending the unique interim subscriber identity information in the whole world to the UE, the unique interim subscriber identity information in the whole world includes the MME Code, when UE is moved to GERAN networks, the PLMN that the NRI of the MME Code mapping is used for the CS domains that BSC selects the PLMN, the PLMN of the ps domain and the UE that service the PS domains of the GERAN networks of the UE to service UE in the LTE is identical.

22nd, a kind of mobile network sharing device, it is characterised in that including,

Receiving unit, to receive BSC transmission include the message of UE access request message；Transmitting element, sends message to the old mobile management network element MME to service UE and obtains user's context, the context includes the CS domains PLMN ID for the CS reception services UE for servicing UE,

Comparing unit, relatively more affiliated PLMN/ operators and service UE CS domains PLMN/ operators, if the CS domains PLMN ID are sent to BSC by difference.

23rd, a kind of mobile network sharing method, it is characterised in that methods described includes,

First receiving unit, receives UE access request message；

First transmitting element, disappearing comprising the access request message is forwarded to the first mobile management network element Breath；

Second receiving unit, to receive the CS domains PLMN ID information that first mobile management network element is sent；The second mobile management network element；

Second transmitting element, being sent to second mobile management network element includes the message of UE access request message, makes the PLMN in the CS domains that the PLMN and the UE of the ps domain service UE in the LTE identical.