KR20020042331A - Method of Transmitting Paging Message in Mobile Communication - Google Patents

Abstract

PURPOSE: A method for transmitting paging messages in a mobile system is provided so that an RNC(Radio Network Controller) can download the paging messages received from a CN(Core Network) to terminals by paging groups. CONSTITUTION: An RNC receives paging messages through the RANAP(Radio Access Network Application Part) messages transferred from a CN(S1). The RNC searches a paging group table and judges whether a paging group corresponding to each IMSI value exists(S2). If a paging group corresponding to each IMSI value exists, the RNC updates a paging group database in an RRC(Radio Resource Control) layer by paging groups using information fetched from the paging group table(S4). At this moment, the RRC periodically fetches information from the paging group database(S5). Based on the information fetched from the paging group database, the RNC downloads the paging messages to terminals by paging groups. Then the RNC clears the paging group database(S6).

Description

How to send paging message in mobile communication system {Method of Transmitting Paging Message in Mobile Communication}

The present invention relates to a method for transmitting a paging message in a mobile communication system, and more particularly, to provide a paging message received from a core network (CN) to a terminal by a paging group in a radio network controller (RNC). The present invention relates to a method of transmitting a paging message in a system.

1 is a block diagram of a general IMT-2000 communication system. Referring to FIG. 1, in the presently proposed DS-based IMT-2000 system, a plurality of wireless network controllers 40a to 40p are connected to the core network 100, respectively. It is connected to a large number of base stations 20a to 20m. In addition, a location service (LCS) server 50 for detailed positioning of each terminal 10a to 10m is linked with a home location register (HLR) 70 connected to the core network 100. It provides location based communication services.

In order to provide the location information of the terminal in such a communication system, an interface and an application part between the core network 100 and the radio network controllers 40a to 40p, the radio network controllers 40a to 40p, and the base stations 20a to 20m. Part) is required, and an Iu, Iub interface, a Radio Access Network Application Part (RANAP), and a Node B Application Part (NBAP) are used, respectively. This is a Radio Resource Control (RRC) layer for the transmission of signaling messages between the core network 100 and the radio network controllers 40a to 40p, and in particular to a network consisting of a terminal, a radio network controller, and a base station, that is, a UTRAN. There is a Radio Link Control (RLC) layer and a Medium Access Control (MAC) layer. In addition, an access link control application (ALCAP) for establishing a bearer between the core network 100 and the radio network controllers 40a to 40p, the radio network controllers 40a to 40p, and the base stations 20a to 20m. There is a protocol.

In the related art, when the paging message is received by the radio network controllers 40a to 40p, the paging message is transmitted to the terminal according to the paging group to which the International Mobile Subscriber Identifier (IMSI) value of the radio network controller belongs. It was.

Therefore, when the paging message is received from the radio network controller, a proposal for a technique of giving a paging message for each paging group from the radio resource control (RRC) layer to the terminal to enhance the service option for the subscriber is not yet disclosed. to be.

If the paging message can be sent to the terminal according to the paging group according to the type of paging message, it will provide convenience to both the system and the user.

An object of the present invention is to meet the expectations of the same technical field mentioned above, it is possible to drop the paging message (paging message) received from the core network (CN) to the terminal for each paging group in the radio network controller (RNC) The present invention provides a method for transmitting a paging message in a mobile communication system.

1 is a block diagram of a currently proposed IMT-2000 communication system.

2 is a block diagram showing a part of an IMT-2000 communication system according to the present invention;

3 is a block diagram of a paging group table according to the present invention;

4 is a block diagram of a paging group database according to the present invention;

5 is a control flowchart illustrating a paging message transmission procedure in a mobile communication system according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

30: base station operator

40: wireless network controller

41: radio access network application layer

42: radio resource control layer

80: Paging Group Table

81: International Mobile Subscriber Identifier (IMSI)

82: paging group

90: Paging Group Database

In order to achieve the above object, a method for transmitting a paging message in a mobile communication system according to the present invention, the method comprising: receiving a paging message from the core network in a wireless network controller; Updating, by the radio network controller, the paging group database in the radio resource control (RRC) layer for each paging group using information obtained from a paging group table provided in the system; Reading, by the radio resource control layer of the radio network controller, information in the paging group database at predetermined intervals; The wireless network controller is configured to transmit a paging message to a terminal for each paging group based on information read from the paging group database.

According to the characteristics of the present invention as described above, since the paging message for each paging group can be lowered to the corresponding terminal according to the type of paging message in the wireless network controller, there is an advantage in that the paging message can be transmitted for each paging group.

Hereinafter, a configuration of an IMT-2000 communication system and a paging message transmission operation using the same will be described with reference to the accompanying drawings.

2 is a block diagram illustrating a part of an IMT-2000 communication system according to the present invention. Referring to FIG. 2, the IMT-2000 communication system of the present invention includes a plurality of radio network controllers including a radio access network application part (RANAP) 41 and a radio resource control (RRC) layer 42. 40; A paging group table 80 for issuing a paging message for each paging group to the mobile terminal upon receiving the paging message from the core network 100; In the radio resource control (RRC) layer of the radio network controller 40, a paging group database 90 for storing international mobile subscriber identifier (IMSI) values for each paging group for paging a terminal.

Here, the paging group table 80 receives the IMSI value and the corresponding paging group information from the base station operating station (BSM) 30 and stores the paging group table 80 for reference. The paging group database 90 also reads the necessary values from the paging group table 90.

3 shows a paging group for each IMSI 81 value in the paging group table according to the present invention. In addition, as shown in FIG. 4, a database table for each paging group is divided into database tables for a paging database required for directly sending a paging message to a terminal for each paging group in the RRC layer, and each IMSI value is added to a corresponding group database. .

Hereinafter, a paging message transmission procedure in a mobile communication system according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

First, the radio network controller 40 receives a paging message through the RANAP message transmitted from the core network (S1).

Subsequently, the wireless network controller 40 searches the paging group table 80 to determine whether there is a paging group corresponding to each IMSI value (S2). At this time, when there is no paging group corresponding to each IMSI value as a result of determination, the corresponding information (IMSI value and paging group information) is downloaded from the base station operating station 30 (S3). In addition, the initial data of the paging group table 80 is generated by receiving IMSI data values from the base station operating station 30 when the radio network controller 40 is initialized.

On the other hand, if there is no paging group corresponding to each IMSI value, the wireless network controller 40 uses the information obtained from the paging group table to open the paging group database 90 in the radio resource control (RRC) layer 42. Update for each paging group (S4).

At this time, the RRC layer 42 of the radio network controller 40 survives every set period (ie, Alive state) and reads information in the paging group database 90 (S5).

Subsequently, the wireless network controller 40 sends down the paging message for each paging group to the terminal based on the information read from the paging group database 90 (S6), and then clears the paging group table 80.

According to the method for transmitting a paging message in the mobile communication system according to the present invention described above, the paging message for each paging group can be lowered to the corresponding terminal according to the type of the paging message. Accordingly, the paging message may be transmitted for each paging group even from the communication system.

Claims (2)

Receiving a paging message from a core network at a wireless network controller; Updating, by the radio network controller, the paging group database in the radio resource control (RRC) layer for each paging group using information obtained from a paging group table provided in the system; Reading, by the radio resource control layer of the radio network controller, information in the paging group database at predetermined intervals; And transmitting the paging message to the terminal for each paging group based on the information read from the paging group database. The method of claim 1, wherein if there is no information to be obtained from the paging group table provided in the system, the corresponding information is received from a base station operating station provided in the system.