CN101400186B - A method for realizing one number and two cards in mobile communication system - Google Patents

Abstract

The invention discloses a method for realizing one-number dual-card in a mobile communication system. Taking the GSM system as an example, the invention divides the user's SIM card into two types from the perspective of user service attributes: full-service card and data card business card. Define different roaming attributes for full-service cards and data service cards. When processing MAP messages, HLR selects subsequent execution content according to different roaming attributes of the same MSISDN, which solves the problem of addressing confusion caused by multiple SIM cards sharing the same MSISDN. question. The realization principle of the present invention can also be applied to the CDMA system. Compared with the prior art, the present invention does not introduce new nodes in the GSM network, does not destroy the system structure and interface protocol specifications of the GSM system, and realizes that one MSISDN corresponds to multiple SIM cards in the GSM system, and in the CDMA system It implements one MSISDN corresponding to multiple UIM cards.

Description

A method for realizing one number and two cards in mobile communication system

technical field

The invention relates to the technical field of mobile communication, in particular to how to realize that multiple SIM cards share the same MSISDN in the field of the GSM system, and how to realize that multiple UIM cards share the same MSISDN in the field of the CDMA system.

Background technique

In the existing GSM system, there is a one-to-one correspondence between the user's MSISDN and the SIM card, and there is also a one-to-one correspondence between the SIM card and the user's IMSI. If the user needs to make voice calls and use a laptop computer to surf the Internet at the same time, he must have two SIM cards at the same time. , that is, two MSISDNs, which is not convenient for users to manage their own numbers, but also wastes the operator's MSISDN number resources. This problem also exists in the existing CDMA system. In order to realize that one MSISDN can correspond to multiple SIM cards, the key is to realize that the HLR can address multiple SIM cards according to the same MSISDN. A method of introducing the MULTI SIM platform is adopted in a disclosed technology closest to the scheme of the present invention, which is a node in the NO.7 signaling system and is responsible for switching the MAP signaling between the MSC and the HLR. The concept of "primary IMSI" is introduced into the MULTI SIM platform, and the IMSI of the called user currently being connected is defined as the "primary IMSI" that is uniquely corresponding to the called user's MSISDN. HLR only uses this "primary IMSI" for Subsequent connections shield the different IMSIs of multiple SIM cards sharing the same MSISDN. This method introduces the MULTI SIM platform and defines "primary IMSI" to avoid addressing confusion caused by multiple SIM cards sharing the same MSISDN.

The shortcoming of prior art: prior art has introduced new node (MULTI SIM platform) in GSM system, needs to redefine the interface specification of GSM system and the message specification of MAP signaling, bigger influence on the system structure of GSM network. If the existing GSM system or CDMA system network adopts this scheme, it needs to be greatly modified.

Contents of the invention

For the shortcoming of prior art, the technical problem to be solved in the present invention:

Taking the GSM system as an example, the present invention divides user SIM cards into two types from the perspective of user service attributes. The first type: a SIM card whose corresponding MSISDN is A, and which has full-service functions (such as voice, SMS, GPRS, etc.) provided by the network for users, is called a full-service card; A plurality of SIM cards that are also A but only possess data service functions (such as GPRS functions) are referred to as data service cards. Define different roaming attributes for full-service cards and data service cards. When processing MAP messages, HLR selects subsequent execution content according to different roaming attributes of the same MSISDN, which solves the problem of addressing confusion caused by multiple SIM cards sharing the same MSISDN. question. The realization principle of the present invention can also be applied to the CDMA system. Compared with the prior art, the present invention does not introduce new nodes in the GSM network, does not destroy the system structure and interface protocol specifications of the GSM system, and realizes that one MSISDN corresponds to multiple SIM cards in the GSM system by means of software. It implements one MSISDN corresponding to multiple UIM cards.

The technical solution of the present invention is: a method for realizing one number and multiple cards in a mobile communication system, which is divided into a full-service card and a data service card for user service attributes, and the definitions of the full-service card and the data service card sharing the same MSISDN are different The roaming attribute of the same MSISDN, HLP selects the subsequent execution content according to the different roaming attributes of the same MSISDN when processing the message.

The above-mentioned method for realizing one number and multiple cards in a mobile communication system is further characterized in that:

In the GSM system, a certain SIM card that shares the same MSISDN has full-service functions provided by the GSM network for users, which is called a full-service card, and other SIM cards that share the same MSISDN only have data functions, which are called SIM cards. It is a data service card; the roaming attribute of the full service card is defined as BOTH MSC AND SGSN, and the roaming attribute of the data service card is defined as ONLY SGSN.

In the GSM system, when the HLR handles the location update initiated by the full service card, it allows its location update on MSC and SGSN; when the HLR processes the location update initiated by the data service card, it only allows its location update on the SGSN and rejects its Location update on MSC.

In the GSM system, after the HLR receives the SRI message, it only sends the PRN message to the MSC where the user whose roaming attribute is BOTH MSC AND SGSN is located. In this way, the call is naturally connected to the full-service card of the called user, and will not be connected to the data service card. .

In the GSM system, after the HLR receives the SRI for SMS message, it only sends the PRN message to the MSC where the user whose roaming attribute is BOTH MSC AND SGSN is located. In this way, the short message is naturally connected to the full service card of the called user, and will not be connected to the data business card.

In the CDMA system, a UIM card that shares the same MSISDN has the full-service function provided by the CDMA network for users, which is called a full-service card, and other UIM cards that share the same MSISDN only have data functions, called it Data service card; the roaming attribute of the full service card is defined as BOTH MSC AND AAA, and the roaming attribute of the data service card is defined as ONLY AAA.

In the CDMA system, when the HLR handles the location update initiated by the full service card, it allows its location update on MSC and AAA; Location update on MSC.

In the CDMA system, after the HLR receives the SRI message, it only sends the PRN message to the MSC where the user whose roaming attribute is BOTH MSC AND AAA is located. In this way, the call is naturally connected to the full-service card of the called user, and will not be connected to the data service card. .

In the CDMA system, after the HLR receives the SRI for SMS message, it only sends the PRN message to the MSC of the user whose roaming attribute is BOTH MSC AND AAA. In this way, the short message is naturally connected to the full service card of the called user, and will not be connected to the data business card.

Beneficial effects of the present invention:

Take the GSM system as an example. From the perspective of user service attributes, the present invention shares a certain SIM card of the same MSISDN with full-service functions (such as voice, short message, GPRS, etc.) The remaining SIM cards of MSISDN only have data functions (such as GPRS), and are defined as data service cards. The invention defines different roaming attributes for the full service card and the data service card, so that the HLR can select subsequent execution content according to the different roaming attributes of the same MSISDN when processing the MAP message. Compared with the prior art, the present invention does not introduce new nodes into the core network of the existing mobile communication system, does not destroy the system structure and interface protocol specifications of the mobile communication system, and realizes one MSISDN corresponding to multiple SIM card, in the CDMA system, one MSISDN corresponds to multiple UIM cards, which is easy to implement and lower in cost.

After the invention is put into commercial use, it is convenient for users to manage their own mobile subscriber numbers. Users can apply for a full-service card for calls, short messages, data (such as GPRS or CDMA1X) and other services, and can also apply for multiple data service cards dedicated to surfing the Internet. Browsing and downloading, full-service card and data service card can complete the connection of their respective services at the same time, and share one MSISDN, and all user account records are associated with this MSISDN, eliminating the trouble of managing multiple accounts for users. In addition, this invention also saves the increasingly tight MSISDN number resources of operators.

Description of drawings

Fig. 1 is a schematic diagram of attribute definitions of multiple SIM cards sharing the same MSISDN in an embodiment of the present invention;

Fig. 2 is the concrete flowchart of the GSM system of the embodiment of the present invention;

Fig. 3 is the specific flowchart of the GSM system call connection of the embodiment of the present invention;

Fig. 4 is a specific flowchart of short message connection in the GSM system according to the embodiment of the present invention.

Detailed ways

The following takes the GSM system as an example to describe the technical solution of the present invention in detail. The realization principle of the present invention in the CDMA system is completely consistent with that in the GSM system.

The present invention divides the SIM cards of users into two types from the perspective of user service attributes. The first type: a SIM card whose corresponding MSISDN is A, and which has full-service functions (such as voice, SMS, GPRS, etc.) provided by the network for users, is called a full-service card; A plurality of SIM cards that are also A but only possess data service functions (such as GPRS functions) are referred to as data service cards. The roaming attribute of the full service card is defined as BOTH MSC ANDSGSN, and the roaming attribute of the data service card is defined as ONLY SGSN. Since the data service card only needs to be registered on the SGSN to realize all data services, defining the roaming attribute of the data service card as ONLY SGSN does not affect the use of the data service card. A schematic diagram of the attribute definition of multiple SIM cards sharing the same MSISDN is shown in Figure 1 .

When the full-service card initiates a location update, the HLR judges that its roaming attribute is BOTH MSC ANDSGSN, and allows it to complete the location update according to the normal location update process. When the data service card initiates a location update, and the HLR judges that its roaming attribute is ONLY SGSN, then the HLR rejects its location update on the MSC and only allows its location update on the SGSN. The specific process is shown in Figure 2.

When a user calls a user who subscribes to the "One Number Multiple Cards" service, the calling end office sends an SRI message to the home HLR of the called user, and the HLR retrieves it according to the user's MSISDN carried in the SRI message. One number multi-card service, HLR will retrieve multiple IMSIs corresponding to the called user's MSISDN, as well as the user data of the full-service card and the user data of the data service card. At this time, the HLR only processes the IMSI with the roaming attribute of BOTH MSC ANDSGSN , that is, the PRN message is only sent to the MSC corresponding to the IMSI of the full-service card. In this way, the call is naturally connected to the full-service card of the called user, but not to the data service card. The specific process is shown in Figure 3.

When a user sends a short message to a user who has subscribed to the "One Number Multiple Card" service, the calling end office sends an SRIfor SMS message to the home HLR of the called user, and the HLR retrieves the user MSISDN carried in the SRIfor SMS message. Since the user has subscribed to the "One Number Multiple Cards" service, the HLR will retrieve multiple IMSIs corresponding to the called user's MSISDN, as well as the user data of the full-service card and the user data of the data service card. At this time, the HLR only processes the roaming attribute as The IMSI of BOTH MSC AND SGSN only sends the PRN message to the MSC corresponding to the IMSI of the full-service card. In this way, the short message is naturally connected to the full-service card of the called user, and will not be connected to the data service card. The specific process is shown in Figure 4.

The mobile phone all uses IMSI to interact with the network when performing GPRS registration, location update and PDP activation. The full-service card and multiple data cards of the present invention all have independent IMSIs respectively, so the GPRS of the full-service card and multiple data cards Businesses will not be affected and can be initiated at the same time.

In the CDMA system, UIM cards can also be divided into full-service cards and data cards according to the above division principles. The roaming attribute of the full-service card is defined as BOTH MSC AND AAA, and the roaming attribute of the data service card is defined as ONLY AAA. When HLR processes MAP messages, similar to the GSM system, it can still select subsequent execution content according to different roaming attributes of full-service cards and data service cards, so that multiple UIM cards can share the same MSISDN.

The present invention follows the MAP protocol specification. Taking the GSM system as an example, the present invention uses different roaming attributes (BOTH MSCAND SGSN, ONLY SGSN) to distinguish multiple SIM cards (i.e. multiple IMSIs) sharing the same MSISDN, and the HLR responds to the MAP message. In the processing logic, the received SRI message and SRI for SMS message are connected to the IMSI whose roaming attribute is BOTH MSC AND SGSN. It avoids the problem of addressing confusion caused by multiple SIM cards sharing the same MSISDN, and realizes the HLR addressing multiple SIM cards according to the same MSISDN. The realization principle of the present invention in the CDMA system is completely consistent with that of the GSM system, the logic is clear and precise, conforms to the MAP protocol specification, and is feasible.

While the present invention has been described by way of examples, the examples are not intended to limit the invention. Those skilled in the art can make various modifications and improvements within the scope of the spirit of the present invention, so the protection scope of the present invention should be defined by the protection scope of the claims of the present application.

Claims (1)

1. A method for realizing one number and multiple cards in a mobile communication system, divides user service attributes into full-service cards and data service cards, and defines different roaming attributes for full-service cards and data service cards sharing the same MSISDN, HLR When processing a message, different roaming attributes of the same MSISDN are used to select subsequent execution content, which is characterized in that: In the GSM system, a certain SIM card that shares the same MSISDN has full-service functions provided by the GSM network for users, which is called a full-service card, and other SIM cards that share the same MSISDN only have data functions, which are called SIM cards. It is a data service card; the roaming attribute of the full service card is defined as BOTH MSC AND SGSN, and the roaming attribute of the data service card is defined as ONLY SGSN; In the GSM system, when the HLR handles the location update initiated by the full service card, it allows its location update on MSC and SGSN; when the HLR processes the location update initiated by the data service card, it only allows its location update on the SGSN and rejects its Location update on MSC; In the GSM system, after the HLR receives the SRI message, it only sends the PRN message to the MSC where the user whose roaming attribute is BOTH MSC AND SGSN is located. In this way, the call is naturally connected to the full-service card of the called user, and will not be connected to the data service card. ; In the GSM system, after the HLR receives the SRI for SMS message, it only sends the PRN message to the MSC where the user whose roaming attribute is BOTH MSC AND SGSN is located. In this way, the short message is naturally connected to the full service card of the called user, and will not be connected to the data business card; or, In the CDMA system, a UIM card that shares the same MSISDN has the full-service function provided by the CDMA network for users, which is called a full-service card, and other UIM cards that share the same MSISDN only have data functions, called it Data service card; the roaming attribute of the full service card is defined as BOTH MSC AND AAA, and the roaming attribute of the data service card is defined as ONLY AAA; In the CDMA system, when the HLR handles the location update initiated by the full service card, it allows its location update on MSC and AAA; Location update on MSC; In the CDMA system, after the HLR receives the SRI message, it only sends the PRN message to the MSC where the user whose roaming attribute is BOTH MSC AND AAA is located. In this way, the call is naturally connected to the full-service card of the called user, and will not be connected to the data service card. ; In the CDMA system, after the HLR receives the SRI for SMS message, it only sends the PRN message to the MSC of the user whose roaming attribute is BOTH MSC AND AAA. In this way, the short message is naturally connected to the full service card of the called user, and will not be connected to the data business card.

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