CN104380771B

CN104380771B - A kind of information processing method of MSC pool, apparatus and system

Info

Publication number: CN104380771B
Application number: CN201280001192.7A
Authority: CN
Inventors: 张艳平; 朱奋勤; 舒林
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-05-11
Filing date: 2012-05-11
Publication date: 2018-06-26
Anticipated expiration: 2032-05-11
Also published as: CN104380771A; WO2013166623A1

Abstract

The present invention is suitable for field of communication technology, provides a kind of information processing method of MSC pool, apparatus and system, the method includes：Receive the instruction information that Serving GPRS Support Node SGSN is sent；According to the instruction information, message is sent to mobile switching centre/vision location registration office MSC/VLR, MSC/VLR is used to indicate and sends update location request message to attribution assigned user server/home location register HSS/HLR.The MSC that the present invention ensures to register in HSS/HLR is the MSC for being currently serviced in UE, and the business that UE can be normally carried out promotes customer service experience.

Description

Information processing method, device and system for mobile switching center pool

Technical Field

The present invention belongs to the field of communication technology, and in particular, to an information processing method, apparatus and system for a mobile switching center pool.

Background

In order to improve network reliability and avoid that User Equipment (User Equipment, UE) cannot normally perform a service after a Mobile switching center/Visitor Location Register (MSC/VLR) device fails, a concept of a Mobile switching center Pool (MSC Pool) is introduced in the existing communication standard, that is, a plurality of MSC/VLRs can serve in the same area, and it is ensured that after one of the MSC/VLRs fails, other MSC/VLRs can still serve the User.

When the UE accesses the MSC/VLR, the old Location Area Identity (old LAI) is carried, the MSC/VLR has user equipment information, and the stored LAI is consistent with the old LAI, the MSC/VLR does not send a Location update request message to a Home Subscriber server/Home Location Register (HSS/HLR), and registers as the MSC/VLR serving the UE, otherwise it sends the Location update request message. In addition, when the UE moves from one MSC/VLR to another MSC/VLR, the new MSC/VLR, assuming that the MSC/VLR2 is registered as a node of a service subscriber to the HSS/HLR, the HSS/HLR sends a cancel location request message to the old MSC/VLR, assuming that the MSC/VLR1, and informs the old MSC/VLR2 to delete the user equipment information. But the message may not reach the old MSC/VLR1 due to a link failure or the like that delivers the message.

In the prior art, when a UE repeatedly enters a certain MSC Pool service area, it is assumed that the UE is started from Long Term Evolution (LTE) of current MSCPool1 and performs joint registration, and then a Mobility Management Element (MME) selects MSC/VLR1 of current MSC Pool 1; then, the UE moves outside the service area of the MSCPool1, which may be the service area of another MSC Pool or non-MSC Pool, assuming that the MSC/VLR3 is accessed, the MSC/VLR3 sends an update location request message to the HSS/HLR to register as the MSC/VLR serving the user equipment, and the HSS/HLR sends a cancel location message to the MSC/VLR1, assuming that the cancel location message is not sent to the MSC/VLR1 at this time. Then the user equipment returns to the 2/3G network of the Service area of the MSC Pool1, if the 2/3G network mode 2 or 3, BSS or RNC may select MSC/VLR2 of the current MSC Pool1 instead of MSC/VLR1, MSC/VLR2 updates the Home Subscriber server/Home location Register (HSS/HLR), that is, sends the location updating request message to HSS/HLR, and registers as the MSC/VLR serving the UE; finally, when the UE selects LTE in the current area, the UE initiates a joint Tracking Area Update (TAU) to the previously registered MME, which establishes SGs association according to the MSC/VLR1 still selected. At this time, because the MSC/VLR1 has the subscription data and the user context message of the UE, and the new LAI and the locally stored old LAI do not change, the location update request message of the HSS/HLR will not be initiated, and the message is used for the user equipment and the MSC/VLR serving the user equipment to be registered in the HSS/HLR, so the HSS/HLR never stores the association relationship between the MSC/VLR1 and the user equipment, and still stores the association relationship between the MSC/VLR2 and the user equipment. When there is a subsequent service related to the user equipment, for example, other users call the user equipment, because the information of the MSC/VLR2 is recorded in the HSS/HLR, and the information of the MSC/VLR1 is not recorded, although the MSC/VLR1 and the MSC/VLR2 belong to the same MSC Pool, because the UE resides in the LTE network at this time, and the MME and the MSC/VLR2 do not establish an SGs association, the MSC/VLR2 cannot send a call request to the UE, so that the UE cannot answer the call, and the service experience of the user is seriously affected.

Disclosure of Invention

An object of an embodiment of the present invention is to provide an information processing method for a mobile switching center Pool, which aims to solve the problem in the prior art that when a user equipment returns to an MSC Pool from an area outside the MSC Pool, MSC information stored in an HSS/HLR is wrong, and thus a service of a user cannot be performed.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

the embodiment of the invention is realized in such a way that an information processing method of a mobile switching center pool comprises the following steps:

receiving indication information sent by a Serving GPRS Support Node (SGSN);

and sending a message to a mobile switching center/visitor location register (MSC/VLR) according to the indication information, wherein the message is used for indicating the MSC/VLR to send a location updating request message to a home subscriber server/home location register (HSS/HLR).

The embodiment of the invention also provides an information processing method of the mobile switching center pool, which comprises the following steps:

the SGSN receives an attachment request message or a routing area update request message which is sent by the UE and comprises an old location area identifier old LAI;

determining that the old LAI is not in a service area of an MSC Pool currently serving the UE;

and sending indication information to a target network element, wherein the indication information is used for indicating the target network element to indicate an MSC/VLR to send a location updating request message to an HSS/HLR.

the SGSN determines that the old LAI is not in the service area of the MSC Pool currently serving the UE;

SGSN sends instruction information to MME, the instruction information is used for instructing the MME to instruct MSC/VLR to send a location updating request message to HSS/HLR;

the MME receives indication information sent by the SGSN;

and the MME sends a message to the MSC/VLR according to the indication information, and is used for indicating the MSC/VLR to send a location updating request message to the HSS/HLR.

The embodiment of the invention also provides an information processing device of the mobile switching center pool, which comprises:

a receiving unit, configured to receive indication information sent by a serving GPRS support node SGSN;

and the sending unit is used for sending a message to the mobile switching center/the visitor location register (MSC/VLR) according to the indication information, wherein the message is used for indicating the MSC/VLR to send a location updating request message to the home subscriber server/the home location register (HSS/HLR).

a receiving unit, configured to receive, by an SGSN, an attach request message or a routing area update request message that is sent by a user equipment UE and includes an old location area identity old LAI;

a determining unit, configured to determine that the old LAI is not in a service area of an MSC Pool currently serving the UE;

and the sending unit is used for sending indication information to a target network element, wherein the indication information is used for indicating the target network element to indicate the MSC/VLR to send a location updating request message to the HSS/HLR.

The embodiment of the invention also provides an information processing system of the mobile switching center pool, which comprises a network element SGSN, a network element MME, a network element MSC/VLR and a user server HSS/HLR, wherein:

the network element SGSN includes:

a first receiving unit, configured to receive, by an SGSN, an attach request message or a routing area update request message that is sent by a user equipment UE and includes an old location area identity old LAI;

a first sending unit, configured to send indication information to a target network element, where the indication information is used to indicate the target network element to indicate an MSC/VLR to send a location update request message to an HSS/HLR.

The network element MME comprises:

a second receiving unit, configured to receive indication information sent by a serving GPRS support node SGSN;

and the second sending unit is used for sending a message to the mobile switching center/visitor location register (MSC/VLR) according to the indication information, wherein the message is used for indicating the MSC/VLR to send a location updating request message to a home subscriber server/home location register (HSS/HLR).

The network element MSC/VLR comprises:

and the third sending unit is used for the MSC/VLR to send a location updating request message to the HSS/HLR according to the message.

Compared with the prior art, the embodiment of the invention has the advantages that: the MME receives the indication information sent by the SGSN, sends a message to the MSC/VLR according to the indication information, and instructs the MSC/VLR to send a location updating request message to the HSS/HLR, so that the MSC registered in the HSS/HLR is the MSC currently serving the UE, the UE can normally perform services, and the user service experience is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of an application scenario provided in an embodiment of the present invention;

FIG. 2 is a flow chart of an implementation of an information processing method of a MSC pool in an application scenario according to an embodiment of the present invention;

fig. 3 is a flowchart of an implementation of an information processing method for a mobile switching center pool according to a second embodiment of the present invention;

fig. 4 is a flowchart of an implementation of an information processing method for a mobile switching center pool according to a third embodiment of the present invention;

fig. 5 is a flowchart of an implementation of an information processing method for a mobile switching center pool according to a fourth embodiment of the present invention;

fig. 6 is a flowchart of an implementation of an information processing method for a mobile switching center pool according to a fifth embodiment of the present invention;

fig. 7 is a flowchart of an implementation of an information processing method for a mobile switching center pool according to a sixth embodiment of the present invention;

fig. 8 is a block diagram of an information processing apparatus of a mobile switching center pool according to a seventh embodiment of the present invention;

fig. 9 is a block diagram of an information processing apparatus of a mobile switching center pool according to an eighth embodiment of the present invention;

fig. 10 is a block diagram of an information processing system of a mobile switching center pool according to a ninth embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment of the invention provides an information processing method of a mobile switching center pool, which comprises the following steps:

receiving indication information sent by a Serving GPRS Support Node (SGSN);

the MME receives indication information sent by the SGSN;

the network element SGSN includes:

The network element MME comprises:

The network element MSC/VLR comprises:

The following detailed description of the implementation of the present invention is made with reference to specific embodiments:

example one

Fig. 1 shows a schematic diagram of an application scenario provided in an embodiment of the present invention, where a UE first moves from an SGSN/MME in an MSC Pool2 service area outside an MSC Pool1 service area to an SGSN in an MSCPool1 service area, and then moves from the SGSN in the MSCPool1 service area to the MME, and the MME acquires the information in time, notifies an MSC/VLR1 that establishes SGs association to HSS/HLS registration, and updates a UE service user node to be an MSC/VLR1, where a specific process is as follows, please refer to fig. 2:

1, UE moves to SGSN, initiates a routing area update message or an attachment message, wherein the message comprises old RAI;

2, the SGSN determines that the old LAI is not in the service area of the MSC Pool currently serving the UE;

3, the UE moves to the MME and initiates a joint tracking area update message or a joint attachment message;

the MME sends a request message to the SGSN, wherein the request message can comprise the RAT currently accessed by the UE;

the request message may be a context request message or an identification request message, where the message includes a temporary identifier of a user, the temporary identifier may be a packet temporary mobile subscriber Identity (P-TMSI) or a Globally Unique Temporary Identifier (GUTI) of a ue, the context request message corresponds to a tracking area update procedure, and the identification request message corresponds to an attach procedure.

5. According to the request message, the SGSN sends indication information to the MME, and the indication information indicates whether the MME indicates the MSC/VLR to send a request message for sending an update position to the HSS/HLR;

the SGSN may send the indication information to the MME through a context response message or an identity response message, where the message includes an IMSI (International Mobile Subscriber identity number) of the ue.

6. And the MME receives the indication information sent by the SGSN and sends a message to the MSC/VLR according to the indication information, wherein the message comprises the IMSI of the user equipment. The message instructs MSC/VLR to send a location updating request message to HSS/HLR, and the instruction information is specifically as follows: the MSC/VLR or MSC Pool of the MME serving the UE changes; or MSC/VLR sends update location request message to HSS/HLR. The indication information in the invention is used for indicating MME MSC/VLR to send Update Location Request (Update Location Request) message to HSS/HLR, the invention does not limit the concrete way of indication.

And 7, the MSC/VLR sends a location updating request message to the HSS/HLR according to the message.

Example two

Fig. 3 is a flowchart illustrating an implementation of the information processing method for the mobile switching center pool according to the second embodiment of the present invention, which is detailed as follows:

in S301, receiving indication information sent by an SGSN;

in this embodiment, the indication information specifically includes: the MME serves the indication information of the change of the MSC/VLR or MSC Pool of the UE; or MSC/VLR sends update location request message to HSS/HLR.

And in S302, sending a message to the MSC/VLR according to the indication information, wherein the message indicates the MSC/VLR to send a location updating request message to the HSS/HLR.

In this embodiment, the MME receives the indication information sent by the SGSN, sends a message to the MSC/VLR according to the indication information, and instructs the MSC/VLR to send a location update request message to the HSS/HLR, thereby ensuring that the MSC registered in the HSS/HLR is the MSC currently serving the UE, which can normally perform the service, and improving the user service experience.

EXAMPLE III

Fig. 4 is a flowchart illustrating an implementation of an information processing method for a mobile switching center pool according to a third embodiment of the present invention, which is detailed as follows:

in S401, the MME receives a joint tracking area update or joint attach message sent by the user equipment;

in S402, the MME sends a request message to the SGSN, where the request message includes a RAT to which the user equipment is currently accessed, where the request message may be a (SGSN) context request message (SGSN) or an identity request message (identity request), where the message carries a GUTI of the user equipment, and the GUTI is mapped from a user equipment P-TMSI. The P-TMSI is allocated by the SGSN. The context request message corresponds to a TAU flow, and the identification request message corresponds to an attachment flow;

in this embodiment, when the UE moves to the MME of the LTE, a joint tracking area update message or a joint attachment message is initiated, where the message carries an old LAI, and the radio network element may include a TAI to which the UE currently accesses when forwarding the joint tracking area update message or the joint attachment message.

In S403, the MME receives indication information sent by the SGSN through a context response message or an identity response message, where the context response message or the identity response message includes the IMSI of the user equipment.

In S404, according to the indication information, sending a message to MSC/VLR, wherein the message indicates MSC/VLR to send a location updating request message to HSS/HLR;

after receiving the message, MSC/VLR sends a location updating request message to HSS/HLR, wherein the message includes IMSI of the user equipment.

In this embodiment, the indication information specifically includes: indication information of whether MSC/VLR or MSC Pool serving UE changes; or whether MSC/VLR sends location update request message to HSS/HLR.

In this embodiment, the MME may instruct the MSC/VLR to send a location update request message to the HSS/HLR by sending a message to the MSC/VLR, and register the location update request message as a node serving the UE, where the message includes an instruction information instructing the MSC to send the location update request message to the HSS/HLR, where the instruction information may be a specific value of a cell, for example, a 0 identifier needs to be registered and a 1 identifier does not need to be registered, and may also be implemented by whether the cell exists, for example, if the cell exists, the identifier needs to be registered and if the cell does not exist, the identifier does not need to be registered, otherwise, a specific manner may be determined according to a user requirement, and the present invention is not limited.

In this embodiment, when the UE moves from a service area outside other MSC Pool to return to the MSC Pool, the MME receives indication information sent by the SGSN through a context response message or an identity response message, and sends a message to the MSC/VLR according to the indication information, where the message indicates the MSC/VLR to send a location update request message to the HSS/HLR, so as to ensure that the MSC registered in the HSS/HLR is the MSC currently serving the UE, and the UE can normally perform a service, thereby improving user service experience.

Example four

Fig. 5 is a flowchart illustrating an implementation of the information processing method of the mobile switching center pool according to the fourth embodiment of the present invention, which is detailed as follows:

in S501, the SGSN receives an attach request message or a routing area update request message sent by the UE and including an old location area identity old LAI.

In S502, determining that the old LAI is not in the service area of the MSC Pool currently serving the UE;

the service area in the present invention may also be referred to as an MSC Pool coverage area, which specifically corresponds to one or more LAIs, and the old LAI is not in the service area of the MSC Pool currently serving the UE, that is, the old LAI is not in the coverage area of the MSC Pool currently serving the UE, or is not in the LAI of the current MSCPool service or is not in the LAI list of the current MSC Pool service;

optionally, before S502, the method includes: determining that the user can use the CSFB or the SMSover SGs according to the user network capability field, specifically: the SGSN acquires an EMM combined procedure capabilities capability field from a locally stored user context, which indicates that the user can use the CSFB or SMS over SGs to perform the above determination and perform a corresponding operation, that is, if the user can use the CSFB or SMS over SGs, the SGSN performs the above determination and sends the indication information to the target network element in S503, otherwise, the determination is not performed, and the indication information is not sent to the target network element SGSN in S503.

In this embodiment, the SGSN configures one or more MSC pools and a plurality of service LAI lists, where the MSC pools correspond to the LAI lists one to one, and the SGSN may determine that the old Location area identifier (old LAI) or the old LAI and the currently accessed new Location area identifier (new RAI) are not in the service area of the MSC Pool currently serving the UE.

Optionally, S502 may be implemented by: determining that all LAI lists corresponding to all MSC Pool configured on the SGSN do not contain the old LAI, wherein the MSC Pool currently serving the UE is all the MSC Pool configured on the SGSN.

In this embodiment, it is determined that the old LAI is not in the LAI list of the MSC Pool according to the LAI list of the MSC Pool configured on the SGSN, where the MSC Pool and the LAI list correspond to each other one to one when at least one MSC Pool and at least one LAI list are configured on the SGSN.

Optionally, S502 may also be implemented by:

1. acquiring a new LAI (location area identifier) of a currently accessed new location area;

2. determining MSC Pool of the current service UE according to the new LAI;

3. determining that the old LAI is not in the LAI list of the MSC Pool according to the LAI list corresponding to the MSC Pool of the current service UE;

the SGSN is configured with a plurality of MSC Pool and a plurality of LAI lists, and the MSC Pool is in one-to-one correspondence with the LAI lists.

In this embodiment, the old access Area identifier (old routing Area Identity, old RAI) may be obtained from the high 5 bytes of the old access Area identifier (old LAI); acquiring a new LAI accessed by the UE from a new routing Area Identity (new RAI) accessed currently or a high-order 5 bytes of a cell Identity; then the

In this embodiment, the SGSN determines, according to a corresponding relationship between a preset MSC Pool and a served LAI list, that the old LAI does not belong to the LAI list of the current MSC Pool, that is, the old LAI is not in the service area of the MSC Pool serving the UE currently, or the MSC/VLR or the MSC Pool changes, which is different in expression manner, but the present invention is not limited thereto. Particularly, when there are more than one set of MSCPool information preset on the SGSN, that is, when there are multiple sets of MSC Pool and LAI list of service thereof { MSC Pool1, LAI list1}, { MSC Pool2, LAI list2}, etc., the MSC Pool of the current service UE is determined by the new LAI, and the specific determination method is that the LAI list of the MSC Pool of the current service UE includes the newLAI, or the MSC Pool corresponding to the LAI list where the newLAI is located is the MSC Pool of the current service UE. The invention limits one LAI to correspond to only one MSC Pool.

In S503, sending an indication message to a target network element, where the indication message is used to indicate the target network element to indicate the MSC/VLR to send a location update request message to the HSS/HLR.

In this embodiment, after S502, the SGSN receives a request message sent by the target network element, where the request message is a context request message or an identity request message, and the SGSN may specifically send the indication information to the target network element through a context response message or an identity response message, where the message includes an IMSI identifying the user equipment.

In this embodiment, the target network element may be an MME or an SGSN, and when the target network element MME receives the indication message, the MME instructs the MSC/VLR to send a location update request message to the HSS/HLR; when the target network element is the SGSN, the SGSN stores the indication information, and when the user equipment moves to another mobility management network element, the target network element SGSN performs S503 on the indication information and sends the indication information to another mobility management network element, where the another mobility management network element may be the SGSN or the MME. Therefore, in order to avoid unnecessary sending of the indication message and waste of system resources, optionally, in S503, specifically: and when the target network element RAT is LTE, sending the indication information to the MME.

In this embodiment, the SGSN determines that the old LAI is not in the service area of the MSC Pool currently serving the UE, and sends an indication message to the target network element, where the indication message indicates the target network element to instruct the MSC/VLR to send a location update request message to the HSS/HLR, so as to ensure that the MSC registered in the HSS/HLR is the MSC currently serving the UE, and the UE can perform a normal service.

EXAMPLE five

Fig. 6 is a flowchart illustrating an implementation of the information processing method for the mobile switching center pool according to the fifth embodiment of the present invention, which is detailed as follows:

in S601, when the UE moves to the SGSN and initiates a (combined) routing area update message or a (combined) attach message, the message includes old RAI, where the access network element sends a cell identifier or a routing area identifier currently accessed by the UE to the SGSN when forwarding the message.

In this embodiment of the present invention, the access network element may be a BSS (base station subsystem) that sends the cell identifier to the SGSN, or an RNC (radio access controller) that sends the routing area identifier to the SGSN.

In S602, it is determined that the old LAI is not in the service area of the MSC Pool currently serving the UE.

In S603, the SGSN receives a request message sent by the MME, where the request message may be an (SGSN) context request message (SGSN) or an identity request message (identity request), and the message may include a RAT currently accessed by the UE, and the request message includes a P-TMSI of the UE.

In S604, according to the request message, the indication information is sent to the MME through a context response message or an identity response message, where the indication information is used to indicate the MME to instruct the MSC/VLR to send a location update request message to the HSS/HLR.

In this embodiment, the SGSN searches for user equipment context information, where the user equipment context information includes a user equipment IMSI, and the SGSN sends indication information to the MME, where the indication information indicates whether the MME instructs the MSC/VLR to send a location update request message to the HSS/HLR, and the SGSN also sends the user equipment IMSI to the MME for identifying the user equipment.

In this embodiment, when the UE moves from a service area other than the other MSC Pool to a service area of the MSC Pool serving the current user equipment, the SGSN receives a request message sent by the MME in a subsequent flow, and according to the request message, the SGSN sends an indication message to the MME, so that the MME notifies the MSC/VLR to send a location update message to the HSS/HLR and registers as a node serving the UE, thereby ensuring that the MSC registered in the HSS/HLR is the MSC currently serving the UE, and the UE can perform a normal service, thereby improving user service experience.

EXAMPLE six

Fig. 7 is a flowchart illustrating an implementation of the information processing method for the mobile switching center pool according to a sixth embodiment of the present invention, which is detailed as follows:

1, SGSN receives an attachment request message or a routing area update request message which is sent by UE and comprises old location area identification old LAI;

4, the MME receives the indication information sent by the SGSN;

and 5, the MME sends a message to the MSC/VLR according to the indication information, and the message is used for indicating the MSC/VLR to send a location updating request message to the HSS/HLR.

And 6, the MSC/VLR sends a location updating request message to the HSS/HLR according to the message.

EXAMPLE seven

Fig. 8 is a structural diagram of an information processing apparatus of a mobile switching center pool according to a seventh embodiment of the present invention, and for convenience of description, only a part related to the embodiment of the present invention is shown, and the apparatus may be a software unit, a hardware unit, or a combination of software and hardware unit that is built in a mobility management network element.

The device comprises: a receiving unit 81 and a transmitting unit 82.

A receiving unit 81, configured to receive indication information sent by a serving GPRS support node SGSN;

and a sending unit 82, configured to send a message to the mobile switching center/visitor location register MSC/VLR according to the indication information, where the message is used to indicate the MSC/VLR to send a location update request message to a home subscriber server/home location register HSS/HLR.

Optionally, the indication information specifically includes:

indication information of MSC/VLR or MSC Pool change serving UE; or,

and instructing the MSC/VLR to send indication information of the location updating request message to the HSS/HLR.

Optionally, the receiving unit 81 is further configured to receive a joint tracking area update or joint attachment message sent by the user equipment.

The sending unit 82 is further configured to send a request message to the SGSN, where the request message includes a context request message context request or an identity request message identity request; and

the receiving unit 81 is specifically configured to receive indication information sent by the SGSN through a context response message or an identity response message.

The information processing apparatus of the mobile switching center pool provided in the embodiment of the present invention may be used in the corresponding method embodiments two and three, and for details, refer to the description of the embodiments two and three, and are not described herein again.

Example eight

Fig. 9 is a structural diagram of an information processing apparatus of a mobile switching center pool according to an eighth embodiment of the present invention, and for convenience of description, only a part related to the embodiment of the present invention is shown, and the apparatus may be a software unit, a hardware unit, or a combination of software and hardware unit that is built in a mobility management network element.

The device comprises: a receiving unit 91, a determining unit 92, and a transmitting unit 93.

A receiving unit 91, configured to receive, by an SGSN, an attach request message or a routing area update request message that is sent by a user equipment UE and includes an old location area identity, oldLAI;

a determining unit 92, configured to determine that the old LAI is not in a service area of the MSC Pool currently serving the UE;

a sending unit 93, configured to send indication information to a target network element, where the indication information is used to indicate the target network element to indicate an MSC/VLR to send a location update request message to an HSS/HLR.

Optionally, the determining unit 92 is specifically configured to determine that all LAI lists corresponding to all MSC Pool configured on the SGSN do not include the old LAI, where the MSC Pool currently serving the UE is all the MSC Pool configured on the SGSN.

Optionally, the determining unit 92 specifically includes:

an obtaining module 921, configured to obtain a new LAI of a currently accessed new location area identifier;

a first determining module 922, configured to determine, according to the new LAI, the MSC Pool currently serving the UE; and

a second determining module 923, configured to determine that the old LAI is not included in an LAI list corresponding to the MSC Pool currently serving the UE.

Optionally, the second determining module 923 is specifically configured to include the new LAI in an LAI list of the MSC Pool of the current serving UE, or use the MSC Pool corresponding to the list where the new LAI is located as the MSCPool of the current serving UE.

Optionally, the receiving unit 91 is further configured to receive a request message sent by a target network element, where the request message is a context request message or an identity request message;

the sending unit 93 is specifically configured to send the indication information to the target network element through a context response message or an identifier response message according to the request message.

Optionally, the sending unit 93 is specifically configured to send the indication information to the MME when the target network element radio access type RAT is long term evolution LTE.

Optionally, the determining unit 92 is further configured to determine that the user can use a network circuit switched fallback CSFB or an LTE short message SMS over SGs according to the user network capability field.

The information processing apparatus of the mobile switching center pool according to the embodiment of the present invention may be used in the corresponding method embodiments four and five, and for details, refer to the description of the embodiments four and five, which are not described herein again.

Example nine

Fig. 10 is a block diagram of an information processing system of a mobile switching center pool according to a ninth embodiment of the present invention, and only a part related to the embodiment of the present invention is shown for convenience of description.

The system comprises a network element SGSN101, a network element MME102, a network element MSC/VLR103 and a user server HSS/HLR104, wherein:

the network element SGSN101 includes:

a first receiving unit 1011, configured to receive, by the SGSN, an attach request message or a routing area update request message that is sent by the user equipment UE and includes an old location area identity old LAI;

a determining unit 1012, configured to determine that the old LAI is not in a service area of the MSC Pool currently serving the UE;

a first sending unit 1013, configured to send indication information to a target network element, where the indication information is used to indicate the target network element to instruct the MSC/VLR to send a location update request message to the HSS/HLR.

The network element MME102 includes:

a second receiving unit 1021, configured to receive indication information sent by a serving GPRS support node SGSN;

a second sending unit 1022, configured to send a message to a mobile switching center/visitor location register MSC/VLR according to the indication information, where the message is used to instruct the MSC/VLR to send a location update request message to a home subscriber server/home location register HSS/HLR.

The network element MSC/VLR103 comprises:

a third sending unit 1031, configured to send, by the MSC/VLR, an update location request message to the HSS/HLR according to the message.

The information processing system of the mobile switching center pool provided in the embodiment of the present invention may be used in the sixth corresponding method embodiment, and for details, refer to the description of the sixth embodiment, and are not described herein again.

It should be noted that, in the above device and system embodiments, the included units are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.

In addition, it can be understood by those skilled in the art that all or part of the steps in the method for implementing the embodiments described above can be implemented by instructing the relevant hardware through a program, and the corresponding program can be stored in a computer-readable storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, or the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An information processing method for a mobile switching center pool, the method comprising:

the MME receives indication information sent by a serving GPRS support node SGSN through a context response message or an identification response message;

2. The method according to claim 1, wherein the indication information is specifically:

indication information of MSC/VLR or MSC Pool change serving UE; or,

3. The method of claim 1, wherein before the receiving the indication sent by the SGSN, the method further comprises:

receiving a joint tracking area update or joint attachment message sent by user equipment;

and sending a request message to the SGSN, wherein the request message comprises a context request message context request or an identification request message identification request.

4. An information processing method for a mobile switching center pool, the method comprising:

the SGSN receives an attachment request message or a routing area update request message which is sent by User Equipment (UE) and comprises an old location area identifier old LAI;

the SGSN sends indication information to the target network element through a context response message or an identification response message, wherein the indication information is used for indicating the target network element to indicate the MSC/VLR to send a location updating request message to the HSS/HLR.

5. The method of claim 4, wherein the determining that the old LAI is not in the service area of the MSC Pool currently serving the UE is specifically:

determining that all LAI lists corresponding to all MSC Pool configured on the SGSN do not contain the old LAI, wherein the MSC Pool currently serving the UE is all the MSC Pool configured on the SGSN.

6. The method of claim 4, wherein the determining that the old LAI is not in the service area of the MSC Pool currently serving the UE is specifically:

acquiring a new LAI (location area identifier) of a currently accessed new location area;

determining the MSC Pool currently serving the UE according to the new LAI;

and determining that the old LAI is not contained in the LAI list corresponding to the MSC Pool currently serving the UE.

7. The method according to claim 6, wherein the method for determining the MSCPool currently serving the UE according to the new LAI specifically comprises: the LAI list of the MSC Pool of the current service UE includes the new LAI, or the MSC Pool corresponding to the list where the new LAI is located is the MSC Pool of the current service UE.

8. The method of claim 4, after determining that the old LAI is not in a service area of an MSC Pool currently serving the UE, the method further comprising,

receiving a request message sent by a target network element, wherein the request message is a context request message or an identification request message;

the sending of the indication information to the target network element specifically includes:

and sending the indication information to the target network element through a context response message or an identification response message according to the request message.

9. The method of claim 4, wherein the sending the indication information to the target network element specifically comprises:

and when the target network element radio access type RAT is long term evolution LTE, sending the indication information to a mobility management network element MME.

10. The method of claim 4, wherein the determining that the old LAI is not before the service area of the MSC Pool currently serving the UE, the method further comprises:

and determining that the user can use the network circuit switched fallback CSFB or the LTE short message SMSover SGs according to the user network capability field.

11. An information processing method for a mobile switching center pool, the method comprising:

SGSN sends indication information to MME through context response message or identification response message, the indication information is used for indicating the MME to indicate MSC/VLR to send location updating request message to HSS/HLR;

the MME receives indication information sent by the SGSN;

the MME sends a message to the MSC/VLR according to the indication information, and is used for indicating the MSC/VLR to send a location updating request message to the HSS/HLR;

MSC sends request message of updating location to HSS/HLR according to the said message.

12. An information processing apparatus of a mobile switching center pool, the apparatus comprising:

a receiving unit, configured to receive indication information sent by a serving GPRS support node SGSN through a context response message or an identity response message;

13. The apparatus according to claim 12, wherein the indication information is specifically:

indication information of MSC/VLR or MSC Pool change serving UE; or,

14. The apparatus of claim 12, wherein the receiving unit is further configured to receive a joint tracking area update or joint attachment message sent by a user equipment;

the sending unit is further configured to send a request message to the SGSN, where the request message includes a context request message context request or an identity request message identity request; and

the receiving unit is specifically configured to receive indication information sent by the SGSN through a context response message or an identity response message.

15. An information processing apparatus of a mobile switching center pool, the apparatus comprising:

a sending unit, configured to send, by the SGSN, indication information to the target network element through the context response message or the identity response message, where the indication information is used to indicate the target network element to indicate the MSC/VLR to send the location update request message to the HSS/HLR.

16. The apparatus of claim 15, wherein the determining unit is specifically configured to determine that all LAI lists corresponding to all MSC Pool configured on the SGSN do not include the old LAI, where the MSC Pool currently serving the UE is all MSC Pool configured on the SGSN.

17. The apparatus according to claim 15, wherein the determining unit specifically includes:

the acquisition module is used for acquiring a new location area identifier (new LAI) of the current access;

a first determining module, configured to determine, according to the new LAI, an MSC Pool currently serving the UE; and

a second determining module, configured to determine that the old LAI is not included in an LAI list corresponding to the MSC Pool currently serving the UE.

18. The apparatus of claim 17, wherein the second determining module is specifically configured to include the new LAI in an LAI list of the MSC Pool of the current serving UE, or an MSCPool corresponding to a list where the new LAI is located is the MSC Pool of the current serving UE.

19. The apparatus of claim 15, wherein the receiving unit is further configured to receive a request message sent by a target network element, where the request message is a context request message or an identity request message;

the sending unit is specifically configured to send the indication information to the target network element through a context response message or an identity response message according to the request message.

20. The apparatus of claim 15, wherein the sending unit is specifically configured to send the indication information to the MME when the target network element radio access type RAT is long term evolution LTE.

21. The apparatus of claim 15, wherein the means for determining is further for determining from a user network capability field that a user can use network circuit domain fallback CSFB or LTE short message SMS over SGs.

22. An information processing system of a mobile switching center pool is characterized in that the system comprises a network element SGSN, a network element MME, a network element MSC/VLR and a user server HSS/HLR, wherein:

the network element SGSN includes:

a first sending unit, configured to send, by an SGSN, indication information to a target network element through a context response message or an identity response message, where the indication information is used to indicate the target network element to indicate an MSC/VLR to send a location update request message to an HSS/HLR;

the network element MME comprises:

a second sending unit, configured to send a message to a mobile switching center/visitor location register MSC/VLR according to the indication information, where the message is used to indicate the MSC/VLR to send a location update request message to a home subscriber server/home location register HSS/HLR;

the network element MSC/VLR comprises: