CN101800971B - Method and device for determining operator in shared network - Google Patents

Abstract

The embodiment of the invention discloses a method and a device for determining an operator in a shared network, relates to the communication field, and reduces air interface message flow and user access delay. The present invention includes: receiving an access message initiated by a user terminal, the access message including the latest location area information saved by the user terminal and the temporary identification code of the user terminal; according to the latest location area saved by the user terminal Information detection whether the location area where the user terminal is currently located and the latest location area saved by the user terminal are in the same route sharing area; if it is detected that the location area where the user terminal is currently located and the latest location area saved by the user terminal are If the location area is in the same route sharing area, the operator serving the user terminal is determined according to the temporary identification code of the user terminal. The embodiment of the present invention is mainly used in the process of determining the operator in the shared network.

Description

Method and device for determining operator in shared network

technical field

The invention relates to the communication field, in particular to a method and device for determining an operator in a shared network.

Background technique

3GPP (The 3rd Generation Partner Project, Third Generation Partnership Project) stipulates the MOCN (Multi-Operator Core Network, multi-operator core network) feature in the Rel'6 version agreement, allowing multiple operators to share RAN (Radio Access Network, access network), and carrier frequency, cell. Compared with other shared access network methods, the main feature of MOCN is that on the basis of shared access network nodes, the carrier frequency and cells are further shared, so that operators can use the public wireless network to send services to their respective home users and contracted roaming users. Providing services means that user equipment belonging to different operators can access and obtain services provided by a specific operator in one cell.

MOCN shared cell technology allows different operators to share cells but the core network is independent. BSS (Base Station Subsystem, Base Station Subsystem) can determine the operator to which the user belongs by identifying the user ID of the user, and can correctly forward the service of the user to the corresponding core network. After different operators share a cell, frequency resources and channel resources can be shared.

When a mobile user enters the shared cell, the operator that serves the mobile user must first be determined to ensure normal communication between the mobile terminal and the core network. In order to determine the operator serving the mobile terminal, the following methods are used in the prior art, specifically:

First, the BSS sets the corresponding relationship between the mobile user's user ID and the operator: where the mobile user's user ID is allocated by the core network of the operator serving it, which may be IMSI (International Mobile Subscriber Identity, mobile user global identification Code) or TMSI (Temporary Mobile Subscriber Identify, temporary mobile subscriber identification number)/P-TMSI (Packet Temperate Mobile Subscriber Identity, packet temporary mobile subscriber identification code), where TMSI/P-TMSI can be parsed out NRI (Network Resource Identifier, network resource identifier); specifically, the BSC (Base Station controller, base station controller) side of the BSS configures the corresponding relationship between IMS I and operators and the routing ratio relationship, the corresponding relationship between NRI and core network elements, and a core network element It only belongs to one operator, and it can be mapped to the operator by corresponding to the network element of the core network.

When a mobile user initially enters the coverage area of the BSS and initiates a location area update, the BSS first searches whether the mobile terminal carries an IMSI. Operator: If the mobile terminal does not carry the IMSI, the BSS will ask the mobile terminal for the IMSI, so as to determine the operator corresponding to the mobile terminal.

In the process of implementing the above identification of the operator serving the mobile terminal, the inventor found at least the following problems in the prior art, the mobile terminal generally only sends the location area update, routing area update or Attachment request, according to the above scheme, every time the mobile terminal updates the location area, the routing area, or attaches the request, the BSS needs to initiate a request to obtain the user ID, which increases the air interface message traffic and the user's access delay.

Contents of the invention

Embodiments of the present invention provide a method and device for determining an operator in a shared network, which reduces air interface message flow and user access delay.

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

A method of determining a carrier in a shared network, comprising:

receiving an access message initiated by the user terminal, where the access message includes the latest location area information saved by the user terminal and the temporary identification code of the user terminal;

Detecting whether the current location area of the user terminal and the latest location area stored by the user terminal are in the same route sharing area according to the latest location area information saved by the user terminal;

If it is detected that the current location area of the user terminal and the latest location area saved by the user terminal are in the same route sharing area, then the operator serving the user terminal is determined according to the temporary identification code of the user terminal.

A device for determining an operator in a shared network, comprising:

The receiving unit is configured to receive an access message initiated by the user terminal, where the access message includes the latest location area information saved by the user terminal and the temporary identification code of the user terminal;

A detection unit, configured to detect whether the location area where the user terminal is currently located and the latest location area saved by the user terminal are in the same route sharing area;

The first determining unit is configured to, when the detection unit detects that the location area where the user terminal is currently located and the latest location area saved by the user terminal are in the same routing shared area, according to the temporary identification code of the user terminal Determine the operator serving the user terminal.

In the technical solution of the present invention, after receiving the access message of the user terminal, it is judged whether the current location area of the user terminal that initiated the access request and the latest location area reported by the user terminal are in the same route sharing area, If it is in the same route sharing area, then determine the operator serving the user terminal according to the temporary identification code of the user terminal; Compared with the mobile user global identification code, it initiates an identity request to the user terminal to obtain the mobile user global identification code of the user terminal. Instead, according to the characteristics of the shared routing area, it is judged whether the current location area of the user terminal that initiates the access request and the latest location area saved and reported by the user terminal are in the unified routing shared area under the shared network. and the current location area of the user terminal are in the same route sharing area, the operator serving it is determined according to the temporary identification code of the user terminal, and there is no need to initiate an identity request to the user terminal, thereby significantly reducing the number of requests to the user terminal. The number of identity requests initiated reduces air interface message traffic and user access delay.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a flowchart of a method for determining an operator in a shared network in Embodiment 1 of the present invention;

FIG. 2 is a flowchart of a method for determining an operator in a shared network in Embodiment 2 of the present invention;

FIG. 3 is a block diagram of an apparatus for determining an operator in a shared network in Embodiment 3 of the present invention;

FIG. 4 is a block diagram of another device for determining an operator in a shared network in Embodiment 3 of the present invention;

FIG. 5 is a block diagram of another device for determining an operator in a shared network in Embodiment 3 of the present invention;

FIG. 6 is a block diagram of another device for determining an operator in a shared network according to Embodiment 3 of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Example 1

An embodiment of the present invention provides a method for determining an operator in a shared network. As shown in FIG. 1, the method includes:

101. Receive an access message initiated by a user terminal, where the access message includes the latest location area information saved by the user terminal and a temporary identification code of the user terminal;

Wherein, the access message may be, but not limited to, the following access messages: access messages such as location area update, routing area update, or attach request initiated by the user terminal in the base station subsystem.

102. Detect whether the current location area of the user terminal and the latest location area stored by the user terminal are in the same route sharing area according to the latest location area information saved by the user terminal.

Wherein, when detecting whether the current location area of the user terminal and the latest location area stored by the user terminal are in the same route sharing area according to the latest location area information saved by the user terminal, the following method may be used:

According to the obtained location area information where the user terminal is currently located, the latest location area information saved by the user terminal, and the preset corresponding relationship between the route sharing area and the location area, determine the current location of the user terminal Whether the location area of the user terminal and the latest location area saved by the user terminal are in the same route sharing area. Wherein, the correspondence between the preset route sharing area and the location area can be set by the base station controller of the base station subsystem before performing the steps of the embodiment of the present invention; the location area information of the user terminal currently located is provided by the network side Acquired before executing the steps of the embodiment of the present invention.

103. If it is detected that the current location area of the user terminal and the latest location area saved by the user terminal are in the same route sharing area, the base station controller determines to serve the user terminal according to the temporary identification code of the user terminal the operator.

Wherein, the temporary identification code of the user terminal is included in the access message initiated by the user terminal, which may be TMSI or P-TMSI, and the 14th to 23rd bits of the TMSI or P-TMSI store NRI, NRI There is a one-to-one correspondence relationship with the core network element. A core network element only belongs to one operator, and it can correspond to the operator when corresponding to the core network element; when it needs to be determined as the user terminal according to TMSI or P-TMSI For the operator of the service, the NRI can be obtained only by parsing the 14th to 23rd bits in the TMSI or P-TMSI according to the protocol.

The determination of the operator serving the user terminal according to the temporary identification code of the user terminal may specifically be: analyzing the temporary identification code of the user terminal to obtain a network resource identifier NRI; according to the preset network resource identifier NRI and the core The corresponding relationship of the network and the network resource identifier obtained by the analysis are determined to be the operator serving the user terminal.

Execution of the above steps may be performed by the base station controller of the base station subsystem.

In the embodiment of the present invention, after receiving the access message of the user terminal, the base station controller judges whether the current location area of the user terminal that initiated the access request is on the same route as the latest location area reported by the user terminal. Shared area, if it is in the same routing shared area, determine the operator serving the user terminal according to the temporary identification code of the user terminal; when detecting the received access message of the user terminal in the prior art In contrast to sending an identity request to the user terminal to obtain the mobile user global identity code of the user terminal when the mobile user global identity code is not included in the mobile user global identity code, the embodiment of the present invention will not immediately send the mobile user global identity code to the The user terminal initiates an identity request, but judges whether the current location area of the user terminal initiating the access request and the latest location area reported by the user terminal are in the same routing shared area according to the characteristics of the shared route area. If the current location area of the terminal is in the same routing shared area as the location area where the user terminal was previously located, then the operator serving it is determined according to the temporary identification code of the user terminal, without initiating an identity request to the user terminal, Therefore, the number of identity requests to the user terminal is significantly reduced, the signaling interaction between the base station controller and the user terminal is reduced, and the air interface message flow and user access delay are reduced.

Wherein, before performing step 101 to receive the access message initiated by the user terminal, the present invention further includes: setting a route sharing area.

The route shared area can be set by the base station controller of the base station subsystem. The route shared area is divided into location areas, and at least one location area is included in a route shared area. The location area is a physical service cell, which has a certain The service coverage range can be but not limited to a macro cell; in a route sharing area, the user routing ratio of the same IMSI number segment is the same, and the location area in the route sharing area can be shared by the operator Delineation, such as: in these location areas, the proportion of roaming users is required to be the same, share the location area of each operator's own independent network among operators, etc.

Setting up the route shared area can enable operators to share resources, so that when user terminals belonging to different operators roam to any location area in the shared area, even if the access request initiated by the user terminal to the base station server does not contain If there is an IMSI, the base station server can also determine the operator serving the user terminal according to the user temporary identification code set for the user terminal by the core network of each operator, so that the base station controller does not need to receive any access message without When using the IMSI, the IMSI of the user terminal is requested from the user terminal, thereby reducing the signaling interaction between the user terminal and the base station controller, and reducing the air interface message flow and user access delay.

Further, if the base station controller detects that the location area where the user terminal is currently located is not in the same route sharing area as the location area where the user terminal was previously located, it initiates an identity request to the user terminal, requesting to obtain the user terminal's and determine the operator serving the user terminal according to the acquired global mobile user identification code of the user terminal. After determining the operator that serves the user terminal according to the obtained mobile user global identity code of the user terminal, the base station controller replaces the operator in the access message with the obtained mobile user global identity code of the user terminal the temporary identification code of the user terminal; sending the access message containing the obtained mobile user global identification code of the user terminal to the core network corresponding to the determined operator serving the user terminal, so that The core network serves the user terminal.

When the base station controller detects that the location area where the user terminal is currently located is not in the same route sharing area as the location area where the user terminal was previously located, it initiates an identity request to the user terminal, requesting to obtain the mobile location of the user terminal User global identification code, and after determining the operator serving the user terminal according to the obtained mobile user global identification code of the user terminal, the base station controller uses the obtained mobile user global identification code of the user terminal to replace The temporary identification code of the user terminal in the access message, and the mobile user global identification code of the user terminal is sent to the core network, so that the core network serves the user terminal; The global identification code uniquely determines the user terminal, avoiding the core network asking the user terminal for the mobile user global identification code of the user terminal when the user terminal cannot be uniquely determined according to the temporary identification code of the user terminal, thus reducing the distance between the core network and the user terminal. Signaling interaction between them.

Example 2

An embodiment of the present invention provides a method for determining an operator in a shared network, as shown in FIG. 2 , the method includes:

201. A base station controller of a base station subsystem sets a routing shared area under the shared network.

Wherein, the route sharing area is divided with location area as the granularity, and a route sharing area includes at least one location area, and the location area is a physical service cell, which has a certain service coverage, and may be but not limited to a macro cell; In one shared area, the user routing ratio of the same IMSI number segment is the same, and the location area under the shared network can be defined by the shared operator, such as: in these location areas, the proportion of roaming users requires The location area under the network owned by each operator independently among the operators is the same, shared, etc. While setting the route sharing area, the base station controller also determines the corresponding relationship between the route sharing area and the location area.

202. When the user terminal initiates an access request to the base station subsystem, the base station controller receives an access message initiated by the user terminal, where the access message includes the latest location area information saved by the user terminal and the user terminal's Temporary identification code; wherein, the access message may be, but not limited to, the following access messages: access messages such as location area update, routing area update, or attach request initiated by the user terminal in the base station subsystem.

203. Judging whether the received access message includes the IMSI (International Mobile Subscriber Identity) of the user terminal; if it is determined that the access message does not include the IMSI of the user terminal, Then execute step 204; if it is determined that the access message contains the IMSI of the user terminal, execute step 208.

Among them, the IMSI consists of three parts, the mobile country code, the mobile network code and the mobile subscriber identification code, with a total of 15 digits.

204. The base station controller detects whether the current location area of the user terminal and the latest location area stored by the user terminal are in the same route sharing area according to the latest location area information saved by the user terminal; if it is detected that the user terminal is currently The location area where the user terminal is located and the latest location area saved by the user terminal are in the same route sharing area, then perform step 205; if it is detected that the location area where the user terminal is currently located and the latest location area saved by the user terminal are not same route shared area, go to step 206.

Wherein, the base station controller detects whether the current location area of the user terminal and the latest location area saved by the user terminal are in the same routing shared area as described in step 102 in Embodiment 1, which will not be repeated here.

205. Determine an operator serving the user terminal according to the temporary identification code of the user terminal.

Wherein, the specific manner of determining the operator serving the user terminal according to the temporary identification code of the user terminal is as described in step 103 in Embodiment 1, which will not be repeated here.

206. The base station controller initiates an identity request to the user terminal, requesting to obtain the IMSI of the user terminal, and determines an operator serving the user terminal according to the obtained IMSI of the user terminal.

Wherein, determining the operator serving the user terminal according to the obtained IMSI of the user terminal specifically includes: according to the preset routing ratio relationship corresponding to the IMSI of the user terminal and the obtained IMSI of the user terminal, determining as The operator of the user terminal service.

207. After determining the operator serving the user terminal according to the obtained IMSI of the user terminal, the base station controller uses the obtained IMSI of the user terminal to replace the temporary identification of the user terminal in the access message code; sending the access message including the obtained IMSI of the user terminal to a core network corresponding to the determined operator serving the user terminal, so that the core network serves the user terminal.

208. Determine an operator serving the user terminal according to the IMSI of the user terminal. For the specific method, refer to the description in step 206, which will not be repeated here.

In the embodiment of the present invention, after receiving the access message of the user terminal, the base station controller first judges whether the received access message contains the IMSI of the user terminal, and further judges whether the IMSI of the user terminal is included in the received access message. Whether the location area where the terminal is currently located and the latest location area saved by the user terminal are in the same route sharing area, if they are in the same route sharing area, determine the operator serving the user terminal according to the temporary identification code of the user terminal quotient; compared with the prior art when it is detected that the received access message of the user terminal does not contain the IMSI, an identity request is initiated to the user terminal to obtain the IMSI of the user terminal, the embodiment of the present invention receives When the access message of the user terminal does not contain the IMSI of the user terminal, it will not immediately initiate an identity request to the user terminal, but further judge whether the current location area of the user terminal and the latest location area saved by the user terminal are in the same route Shared area, if the current location area of the user terminal and the latest location area saved by the user terminal are in the same routing shared area, then the operator serving the user terminal is determined according to the temporary identification code of the user terminal, without sending the user terminal Initiating an identity request, thereby significantly reducing the number of identity requests to the user terminal, reducing the signaling interaction between the base station controller and the user terminal, and reducing the air interface message flow and user access delay.

Moreover, in this embodiment of the present invention, when the received access message of the user terminal does not include the IMSI of the user terminal, and the current location area of the user terminal is not in the same routing shared area as the latest location area saved by the user terminal, the The user terminal initiates an identity request to obtain the IMSI of the user terminal, so that the operator serving the user terminal is determined according to the obtained IMSI of the user terminal, which significantly reduces the number of identity requests to the user terminal and reduces the number of base stations. The signaling interaction between the controller and the user terminal reduces air interface message traffic and user access delay.

Further, in the prior art, because the TMSI or P-TMSI of the user terminal is allocated by other core networks, if there is no interface between other core networks and the core network of the shared operator of the BSS, the TMSI or P-TMSI of these user terminals - The TMSI cannot be identified by the currently selected core network element, that is, the operator serving the user cannot be correctly determined; at this time, the currently selected core network will actively initiate a query for the user ID, making the connection between the core network and the user terminal A large number of signaling interactions occur; in the embodiment of the present invention, when it is determined that the current location area of the user terminal and the location area where the user terminal was previously located are not in the same route sharing area, it belongs to the problems existing in the above-mentioned prior art , when there is such a problem, the base station controller uses the obtained mobile user global identification code of the user terminal to replace the temporary identification code of the user terminal in the access message, and the mobile user global identification code of the user terminal The code is sent to the core network so that the core network can serve the user terminal; since the core network can uniquely determine the user terminal through the mobile user global identification code of the user terminal, it avoids that the core network cannot uniquely determine the user terminal based on the temporary identification code of the user terminal When connecting a user terminal, the user terminal is asked for the mobile user global identity code of the user terminal, thereby reducing the signaling interaction between the core network and the user terminal.

Example 3

An embodiment of the present invention provides a device for determining an operator in a shared network, the device may be a base station controller of a base station subsystem, as shown in FIG. 3 , the device includes: a receiving unit 31, a detecting unit 32 and a first determining unit 33 .

The receiving unit 31 is configured to receive an access message initiated by the user terminal, where the access message includes the latest location area information saved by the user terminal and the temporary identification code of the user terminal; the access message may be but Not limited to the following access messages: access messages such as location area update, routing area update, or attach request initiated by the user terminal in the base station subsystem; after receiving the access message initiated by the user terminal, the detection unit 32 is used to The latest location area information saved by the user terminal detects whether the current location area of the user terminal and the latest location area saved by the user terminal are in the same route sharing area; when the detection unit 32 detects that the user terminal When the current location area and the latest location area saved by the user terminal are in the same route sharing area, the first determining unit 33 is configured to determine the operator serving the user terminal according to the temporary identification code of the user terminal.

Wherein, the route sharing area can be set by the base station controller of the base station subsystem, specifically by the setting unit 34 added by the base station controller. The route sharing area is divided into location areas, and contains at least A location area, the location area is a physical serving cell, which has a certain service coverage, which can be but not limited to a macro cell; in a route sharing area, the user routing ratio of the same IMSI number segment is the same, The location areas in the route sharing area can be defined by the sharing operators, for example: in these location areas, the proportion of roaming users is required to be the same, and the location areas under the network owned by each operator independently among the sharing operators, etc.

Wherein, when the detection unit 32 detects whether the current location area of the user terminal and the latest location area stored by the user terminal are in the same routing shared area according to the latest location area information saved by the user terminal, it specifically: according to the The current location area information of the user terminal and the latest location area information saved by the user terminal, as well as the preset corresponding relationship between the route sharing area and the location area, determine the current location area of the user terminal and the Whether the latest location area saved by the user terminal is in the same route sharing area. Wherein, the preset corresponding relationship between the route sharing area and the location area may be set by the base station controller of the base station subsystem before executing the steps of the embodiments of the present invention.

Wherein, the first determination unit 33 includes: an analysis module 331 and a determination module 332 .

When the first determining unit 33 determines the operator serving the user terminal according to the temporary identification code of the user terminal, it first analyzes the temporary identification code of the user terminal through the parsing module 331 to obtain a network resource identifier; After the network resource is identified, the determining module 332 is configured to determine the operator serving the user terminal according to the preset correspondence between the network resource ID and the core network and the network resource ID parsed by the parsing module 331 . Wherein, the temporary identification code of the user terminal may be TMSI or P-TMSI, and the 14th to 23rd bits of the TMSI or P-TMSI store NRI, and the NRI and the core network element have a one-to-one correspondence relationship, one The network element of the core network only belongs to one operator, and corresponding to the network element of the core network can correspond to the operator; when it is necessary to determine the operator serving the user terminal according to the TMSI or P-TMSI, only the parsing module 331 is required The NRI can be obtained by parsing the 14th to 23rd bits in the TMSI or P-TMSI according to the protocol.

Further, when the detection unit 32 detects that the current location area of the user terminal and the latest location area saved by the user terminal are not in the same route sharing area, the device, as shown in FIG. 4 , further includes: an acquisition unit 35 and The second determination unit 36 .

When the detection unit 32 detects that the current location area of the user terminal is not in the same route sharing area as the latest location area saved by the user terminal, the acquisition unit 35 is configured to initiate an identity request to the user terminal, requiring Acquiring the IMSI of the user terminal; after acquiring the IMSI of the user terminal, the second determining unit 36 is configured to determine the mobile user global identity code of the user terminal obtained by the acquiring unit 35 to serve the user terminal An operator, so that the base station controller determines the operator serving the user terminal, and realizes the communication between the core network of the determined operator and the user terminal.

Optionally, in order to enable the core network serving the user terminal to uniquely determine the user terminal according to the user identifier of the user terminal reported by the base station controller, the device, as shown in FIG. 5 , further includes: a replacement unit 37 and sending unit 38 .

The replacement unit 37, after the second determining unit 35 determines as the operator serving the user terminal according to the obtained mobile user global identification code of the user terminal, uses the obtained mobile user global identification code of the user terminal The identification code replaces the temporary identification code of the user terminal in the access message; the sending unit 38 is configured to send the access message containing the obtained mobile user global identification code of the user terminal to the determined For the core network corresponding to the operator serving the user terminal, the core network uniquely determines the user terminal according to the reported mobile user global identification code of the user terminal, realizes communication with the user terminal, and prevents the core network from When requesting the temporary identification code of the terminal, the mobile user global identification code of the user terminal is requested from the user terminal, which reduces the signaling interaction between the user terminal and the core network.

Optionally, after the receiving unit 31 receives the access message initiated by the user terminal, before detecting whether the location area where the user terminal is currently located and the latest location area saved by the user terminal are in the same route sharing area, the The device may also first judge whether the received access message contains the mobile user global identity code of the user terminal, so as to further reduce the delay of user access. At this time, the device further includes: judging Unit 39.

The judging unit 39 is used to judge whether the access message received by the receiving unit 31 includes the IMSI of the user terminal. The IMSI is composed of three parts: the mobile country code, the mobile network code and the mobile subscriber identification code, 15 in total. When the judgment unit 39 judges that the IMSI of the user terminal is not included in the access message, the device calls the detection unit 32 to detect the current location area of the user terminal and the latest location area saved by the user terminal Whether they are in the same route sharing area, and perform corresponding operations.

When the judging unit 39 judges that the access message contains the IMSI of the user terminal, the device does not call the detecting unit 32 to detect whether the current location area of the user terminal and the latest location area stored by the user terminal are within In the same route shared area, the operator serving the user terminal is determined directly according to the IMSI of the user terminal in the access message. The operator determining to serve the user terminal according to the IMSI of the user terminal may adopt a method in the prior art, which specifically includes: according to the preset route proportional relationship corresponding to the IMSI of the user terminal, and the obtained IMSI of the user terminal , to determine the operator serving the user terminal.

In the embodiment of the present invention, after receiving the access message of the user terminal, the base station controller first judges whether the received access message contains the IMSI of the user terminal, and further judges whether the IMSI of the user terminal is included in the received access message. Whether the location area where the terminal is currently located and the latest location area saved by the user terminal are in the same route sharing area, and if they are in the same route sharing area, then determine the operator serving the user terminal according to the temporary identification code of the user terminal; Compared with the prior art, when it is detected that the received user terminal access message does not contain IMSI, an identity request is initiated to the user terminal to obtain the IMSI of the user terminal. When the terminal's access message does not include the IMSI of the user terminal, it will not immediately initiate an identity request to the user terminal, but will further determine whether the current location area of the user terminal and the latest location area saved by the user terminal are in the same route sharing area , if the current location area of the user terminal and the latest location area saved by the user terminal are in the same route sharing area, then determine the operator serving it according to the temporary identification code of the user terminal, without initiating an identity request to the user terminal, Therefore, the number of identity requests to the user terminal is significantly reduced, the signaling interaction between the base station controller and the user terminal is reduced, and the air interface message flow and user access delay are reduced.

Moreover, in this embodiment of the present invention, when the received access message of the user terminal does not include the IMSI of the user terminal, and the current location area of the user terminal is not in the same routing shared area as the latest location area saved by the user terminal, the The user terminal initiates an identity request to obtain the IMSI of the user terminal, so as to determine the operator serving the user terminal according to the obtained IMSI of the user terminal, which significantly reduces the number of identity requests to the user terminal and reduces the number of base station controllers. Signaling interaction with user terminals, thereby reducing air interface message traffic and user access delay.

Further, in the prior art, because the TMSI or P-TMSI of the user terminal is allocated by other core networks, if there is no interface between other core networks and the core network of the shared operator of the BSS, the TMSI or P-TMSI of these user terminals - The TMSI cannot be identified by the currently selected core network element, that is, the operator serving the user cannot be correctly determined; at this time, the currently selected core network will actively initiate a query for the user ID, making the connection between the core network and the user terminal There is a large amount of signaling interaction; in the embodiment of the present invention, when it is determined that the current location area of the user terminal and the latest location area saved by the user terminal are not in the same route sharing area, it belongs to the problem existing in the above-mentioned prior art. When there is such a problem, the base station controller replaces the temporary identification code of the user terminal in the access message with the obtained mobile user global identification code of the user terminal, and transfers the mobile user global identification code of the user terminal to Send it to the core network so that the core network can serve the user terminal; since the core network can uniquely determine the user terminal through the mobile user global identification code of the user terminal, it is avoided that the core network cannot uniquely determine the user terminal based on the temporary identification code of the user terminal At the time of the terminal, the user terminal is asked for the mobile user global identification code of the user terminal, thereby reducing the signaling interaction between the core network and the user terminal.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be realized by means of software plus necessary general-purpose hardware, and of course also by hardware, but in many cases the former is a better embodiment . Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, such as a floppy disk of a computer , a hard disk or an optical disk, etc., including several instructions for enabling a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (14)

1. A method for determining an operator in a shared network, comprising: receiving an access message initiated by the user terminal, where the access message includes the latest location area information saved by the user terminal and the temporary identification code of the user terminal; Detecting whether the current location area of the user terminal and the latest location area stored by the user terminal are in the same route sharing area according to the latest location area information saved by the user terminal; If it is detected that the current location area of the user terminal and the latest location area saved by the user terminal are in the same route sharing area, then the operator serving the user terminal is determined according to the temporary identification code of the user terminal. 2. The method for determining an operator in a shared network according to claim 1, further comprising: If it is detected that the current location area of the user terminal is not in the same route sharing area as the latest location area saved by the user terminal, an identity request is initiated to the user terminal, requesting to obtain the global mobile user identification of the user terminal code; The operator serving the user terminal is determined according to the acquired global mobile user identification code of the user terminal. 3. The method for determining an operator in a shared network according to claim 2, wherein, after determining the operator serving the user terminal according to the mobile user global identification code of the acquired user terminal, further include: replacing the temporary identification code of the user terminal in the access message with the obtained mobile user global identification code of the user terminal; Sending the access message including the acquired global mobile user identification code of the user terminal to the core network corresponding to the determined operator serving the user terminal. 4. The method for determining an operator in a shared network according to claim 1, characterized in that, after receiving the access message initiated by the user terminal, the method comprises: judging whether the received access message contains the mobile subscriber global identity code of the user terminal; If it is determined that the access message does not contain the mobile user global identity code of the user terminal, perform the step of detecting the current location area and the location area of the user terminal according to the latest location area information saved by the user terminal. Whether the latest location area saved by the user terminal is in the same route sharing area. 5. The method for determining an operator in a shared network according to claim 1 or 4, wherein the detecting whether the current location area of the user terminal and the latest location area saved by the user terminal are within The same routing share includes: According to the location area information where the user terminal is currently located, the latest location area information saved by the user terminal, and the preset corresponding relationship between the route sharing area and the location area, determine the location area and location area where the user terminal is currently located and Whether the latest location area saved by the user terminal is in the same route sharing area. 6. The method for determining an operator in a shared network according to claim 1, wherein said determining the operator serving the user terminal according to the temporary identification code of the user terminal comprises: Analyzing the temporary identification code of the user terminal to obtain a network resource identifier; The operator serving the user terminal is determined according to the preset correspondence between the network resource identifier and the core network, and the network resource identifier obtained through the analysis. 7. The method for determining an operator in a shared network according to claim 1, further comprising: before receiving an access message initiated by a user terminal: The routing sharing area is set, and the routing sharing area is divided by location area as a granularity, and one routing sharing area includes at least one location area. 8. A device for determining an operator in a shared network, comprising: The receiving unit is configured to receive an access message initiated by the user terminal, where the access message includes the latest location area information saved by the user terminal and the temporary identification code of the user terminal; A detection unit, configured to detect whether the current location area of the user terminal and the latest location area stored by the user terminal are in the same route sharing area according to the latest location area information saved by the user terminal; The first determining unit is configured to, when the detection unit detects that the location area where the user terminal is currently located and the latest location area saved by the user terminal are in the same routing shared area, according to the temporary identification code of the user terminal Determine the operator serving the user terminal. 9. The device for determining an operator in a shared network according to claim 8, further comprising: An acquisition unit, when the detection unit detects that the current location area of the user terminal and the latest location area saved by the user terminal are not in the same route sharing area, initiate an identity request to the user terminal, requesting to obtain the mobile location of the user terminal User Global Identification Number; The second determining unit is configured to determine the operator serving the user terminal according to the global mobile user identification code of the user terminal obtained by the obtaining unit. 10. The device for determining an operator in a shared network according to claim 9, further comprising: The replacement unit is configured to use the obtained mobile user global identification code of the user terminal to replace the operator after the second determination unit determines the operator serving the user terminal according to the obtained mobile user global identification code of the user terminal. the temporary identification code of the user terminal in the access message; A sending unit, configured to send the access message including the obtained mobile user global identity code of the user terminal to a core network corresponding to the determined operator serving the user terminal. 11. The device for determining an operator in a shared network according to claim 8, further comprising: a judging unit, configured to, after the receiving unit receives the access message initiated by the user terminal, judge whether the received access message includes the mobile user global identity code of the user terminal; When the access message does not contain the mobile user global identity code of the user terminal, the detection unit is called to detect whether the current location area of the user terminal is on the same route as the latest location area saved by the user terminal shared area. 12. The device for determining an operator in a shared network according to claim 8 or 11, wherein the detection unit specifically includes: According to the location area information where the user terminal is currently located, the latest location area information saved by the user terminal, and the preset corresponding relationship between the route sharing area and the location area, determine the location area and location area where the user terminal is currently located and Whether the latest location area saved by the user terminal is in the same route sharing area. 13. The device for determining an operator in a shared network according to claim 8, wherein the first determining unit comprises: A parsing module, configured to parse the temporary identification code of the user terminal to obtain a network resource identifier; The determining module is configured to determine the operator serving the user terminal according to the preset correspondence between the network resource identifier and the core network, and the network resource identifier analyzed by the parsing module. 14. The device for determining an operator in a shared network according to claim 8, further comprising: A setting unit, configured to set the route sharing area before the receiving unit receives the access message initiated by the user terminal, the route sharing area is divided into location areas, and one route sharing area includes at least one location area .

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