KR20040098697A - Paging embodiment method of MSC system unit in WCDMA - Google Patents

Abstract

PURPOSE: A method for implementing paging by units of an MSC(Mobile Switching Center) system in a WCDMA, particularly for increasing a paging success rate by paging destination mobile subscribers by using a SearchForMS function, is provided to increase a completion rate of destination calls. CONSTITUTION: When a destination call request is received from an originating side, an MSC of a destination side inquires a subscriber from a VLR(Visitor Location Register) with respect to the destination call(S20). The VLR checks paging performing information and determines whether it is paging of a location registered area(S22,S24). If the paging performing information indicates that it is paging of the location registered area, the VLR transfers a paging command to the MSC with respect to the corresponding subscriber to perform paging(S26). The call is processed according to a general destination call procedure(S30).

Description

Paging embodiment method of MSC system unit in WCDMA

The present invention relates to a method for implementing paging for each MSC system in WCDMA, and more specifically, a function of paging a subscriber who is not currently registered in WCDMA by referring to paging performance information in a paging performance step of an incoming call setup procedure. The present invention relates to a method for improving a paging success rate for an incoming mobile subscriber and increasing a completion rate of an incoming call even by a mobile terminal registered using a SeaechForMS function.

1 is a view illustrating an incoming call setup procedure of a general mobile communication system.

When an incoming call occurs in a mobile communication system, call setup with a user proceeds through the following process.

When there is an incoming call from the originator 101 (102), the system of the originating network 103 sends (104) a call setup request to the destination network exchange 105 to which it is connected.

When the user requests the location information by sending the information to the registered home location register (HLR) 107 (106), the home location register 107 is sent to the visitor location register (VLR) 109 where the called party is currently registered. Request route information for call setup (108).

Then, the destination visitor location register 109 confirms that the called party is registered, requests the route information to the called party visited exchange 111 (110), obtains information about the route (112), and then provides information about the route. It is sent back to the home location register 107 (113).

When the home location register 107 sends the route information received from the visitor location register 109 and the location information it has to the destination network exchange 105 (114), the destination network exchange 105 is a destination visitor exchange 111 In step 115, route information is sent.

The called party visited exchange 111 sends a paging message for finding the called user to each base station 117 in the location registration area where the user is registered for call setup (116).

Each base station 117 in the current location registration area transmits a paging message looking for a user (118), and the receiving terminal 119 receiving the transmitted message transmits a response to paging (120).

The base station 117 receiving the response message notifies the called party's visited exchange 111 that the response has been received (121).

The recipient visited exchange 111 searches for a response message from each base station 117 to determine which base station the user is currently in, and sets a call path to the identified base station.

When the called party call setup is completed, the called party visited exchange 111 sends a call setup completion to the called network switch 105 (122), and the called network exchange sends the call setup completed to the calling party network 103 (123). .

After this process, call setup between the caller 101 and the called party 120 is made.

In the above-described paging, when the mobile subscriber is registered in the WCDMA mobile communication network, paging has been repeatedly provided only in the location registration area.

The location registration area is a region in which the current location of the mobile subscriber is registered, and becomes a paging area of the subscriber in an incoming call.

In this case, the probability of paging success for the mobile subscriber is low and the completion rate of the incoming call cannot be improved.

In order to solve the above-mentioned problems of the present invention, an object of the present invention is to find a mobile terminal used for a subscriber who is not registered with reference to paging performance information for a subscriber registered in a WCDMA mobile communication network. In this paper, a method for implementing paging of an MSC system unit in WCDMA that requires paging to a mobile subscriber by extending to an MSC system unit using SearchForMS).

In addition, another object of the present invention is to expand the paging area by MSC system unit with reference to the paging performance information to improve the paging success rate for the incoming mobile subscribers to increase the completion rate of the incoming call, and to increase the completion of the incoming call of the mobile subscribers customer satisfaction Can contribute to

In order to achieve the above object, the present invention provides a method for performing paging during call setup in a WCDMA mobile communication network:

When the incoming call request comes from the calling party, the first step is to perform the subscriber inquiry to the VLR (Visitor Location Register) for the incoming call from the MSC (wireless exchange) of the called party, and perform paging such as location registration area and MSC at the VLR. A second step of determining whether the location registration area is paging by querying the information, and a third step of performing paging by transmitting a page command for the corresponding subscriber to the MSC in the VLR if the paging performance information is the location registration area; If the paging performance information is a unit of the MSC system rather than the location registration area, the VLR comprises a fourth step of performing a paging by transmitting a SearchForMS command for the subscriber to the MSC; In this regard, an MSC system-level paging implementation method is provided.

1 is a view illustrating an incoming call setup procedure of a general mobile communication system.

2 is a schematic paging flow chart referring to paging performance information according to the present invention.

3 is a flowchart of processing paging by extending an MSC system unit according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: Incoming Mobile Terminal (MS) 20: Radio Control Station (RNC)

30: Wireless Switching System (MSC) 40: Visitor Location Register (VLR)

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

In the WCDMA mobile communication network according to the present invention, incoming call processing includes a mobile switching center (MSC) in charge of call processing, a visitor location register (VLR) that manages a mobile subscriber's location, and a radio resource. Radio Network Controller (RNC) that manages this.

Paging performance information, which is a term used in the present invention, designates the number of paging performances and paging ranges managed by the exchange, and the location registration area is a region where the current location of the mobile subscriber is registered. Zone).

The radio control station is a complex network component of a radio access network (RAN) that provides a connection and coordination function for a base station in a WCDMA mobile communication network, and manages activities such as active call handover between base stations.

FIG. 2 is a schematic flowchart of paging processing referring to paging performance information according to an embodiment of the present invention, in which a VLR determines whether a location registration area or an MSC system unit is used to determine paging performance information and deliver a command differently.

When an incoming call request comes from the calling party, the MSC 30 of the called party performs a subscriber inquiry to the VLR 40 with respect to the incoming call (S20).

The VLR 40 inquires the paging performance information such as the location registration area and the MSC and determines whether the location registration area is paging by referring to the corresponding details (S22) (S24).

If the paging performance information is the location registration area, the VLR 40 transfers a page command for the corresponding subscriber to the MSC 30 to perform paging (S26).

After the paging is performed, the call processing performs a conventional incoming call procedure (S30).

On the other hand, when the paging performance information is not the location registration area, that is, the MSC system unit, the VLR 40 delivers a SearchForMS command for the subscriber to the MSC 30 to perform paging (S28). .

After the paging is performed, the call processing performs a conventional incoming call procedure (S30).

FIG. 3 is a flowchart of processing paging by extending to an MSC system unit according to the present invention. When paging fails by determining whether a location registration area or an MSC system unit is determined by looking at paging performance information in a VLR, if a location registration area is transmitted, the paging fails. In this case, the command for paging by MSC system unit is delivered.

In order to establish a call connection between a mobile station (MS: Mobile Station) 10 and a calling party, the calling party makes a request for setting an incoming call to the MSC 30 of the called party (S30).

The MSC 30 requests the incoming call information SIFIC to the VLR 40 which is the visitor location register (S31).

The VLR 40 checks the information of the called subscriber and refers to the paging performance information, and requests the mobile terminal page (PageMS) to the MSC 30 in the case of paging of the location registration area (S32).

Accordingly, the MSC 30 makes a page request to the RNC 20 which is a radio control station (S33).

If paging fails between the RNC 20 and the destination MS 10, the MSC 30 transmits a PageMS negative response message for paging to the VLR 40 (S34).

Then, the VLR 40 requests the MSC 30 to search for a mobile terminal (SearchForMS) command in the MSC system unit by referring to the paging performance information (S35).

The MSC 30 requests the page to the entire RNC 20 (S36), and paging of the MSC system unit is performed between the destination MS 10 and the MSC 30 (S36).

Thereafter, call processing is performed according to a conventional incoming call procedure (S37).

As described above, the present invention is to perform paging by extending the paging area in units of MSC systems with reference to paging performance information for designating paging performance and paging range managed by the exchange for subscribers registered in the WCDMA mobile communication network. Paging success rate can be greatly improved.

As described above, according to the present invention, a mobile terminal search (SearchForMS) used for a subscriber whose location is not registered by referring to paging performance information for a subscriber registered in a WCDMA mobile communication network is performed on an MSC system basis. You can extend it to request paging as a mobile subscriber.

In addition, by extending the paging area in units of MSC system with reference to the paging performance information, it is possible to improve the paging success rate for the incoming mobile subscriber to increase the completion rate of the incoming call, and contribute to customer satisfaction by increasing the completion rate of the incoming call of the mobile subscribers. .

Claims (4)

A method for performing paging during call setup in a WCDMA mobile network: A first step of performing a subscriber inquiry to a VLR (Visitor Location Register) for an incoming call at the MSC (wireless exchange) of the called party when an incoming call request is received from the calling party; A second step of determining whether the location registration area is paging by querying paging performance information such as location registration area and MSC in the VLR; If the paging performance information is a location registration area, performing a paging by transmitting a page command for the corresponding subscriber to the MSC in the VLR; If the paging performance information is a unit of the MSC system rather than the location registration area, the VLR comprises a fourth step of performing a paging by transmitting a SearchForMS command for the subscriber to the MSC; Paging implementation method in MSC system unit. The method of claim 1, wherein the third step, Requesting a page from the VLR to an MSC; Making a page request from the MSC to a Radio Control Station (RNC); And paging is performed between the RNC and the destination MS (mobile terminal). The method according to claim 1, wherein the fourth step, Requesting a SearchForMS command to the MSC by referring to the paging performance information in the VLR; Requesting a page from the MSC to all RNCs; MSC system unit paging implementation method characterized in that it consists of the step of performing the MSC system unit paging between the destination MS and the MSC. A method for performing paging during call setup in a WCDMA mobile network: Making a request for establishing an incoming call from a calling party to an MSC (wireless exchange) at the called party; Requesting incoming call information (SIFIC) from a visitor location register (VLR) at the MSC; Checking the information of the called subscriber in the VLR and referring to paging performance information, requesting a page to the MSC in case of paging of the location registration area; Making a page request from the MSC to a Radio Control Station (RNC); If paging fails between the RNC 20 and the called mobile terminal, transmitting a page MS negative response message for paging from the MSC to the VLR; Requesting a SearchForMS command to the MSC by referring to the paging performance information in the VLR; Requesting a page from the MSC to all RNCs and performing paging of the MSC system unit between the destination MS (mobile terminal) and the MSC.