KR100971592B1 - Method and System for Controlling Update of Routing Area and Location Area - Google Patents

Abstract

The present invention relates to a routing area and location registration area update control method and system. The present invention provides a method for determining whether a system cell includes (a) receiving system information from a wireless network controller, and (b) determining whether a system cell ID is included in the system information. Allocated to a plurality of cells adjacent to the boundary area of the location registration area is equally assigned. Determining a step. According to the present invention, there is an advantage of preventing inefficient update prevention and paging message loss in the RA / LA boundary area.

RA, LA, Update, Paging Message, Exchange, SGSN, Perimeter Area, Ping Pong Area

Description

Method and System for Controlling Update of Routing Area and Location Area}

The present invention relates to a method and a system for controlling a routing area and a location registration area update, and more particularly, a method for increasing a probability of receiving a paging message of a mobile communication terminal located at a boundary area of a routing area or a location registration area and reducing a system load. And to the system.

 It is based on the European system of Global System for Mobile Communications (GSM) and General Packet Radio Services (GPRS), and uses Wideband Code Division Multiple Access (WCDMA) and 3GPP (3rd). The Universal Mobile Telecommunication Service (UMTS) system, a third-generation mobile communication system that conforms to the Generation Partnership Project (Standard) standard, provides packet-based text, digitized voice, video, and multimedia data whether mobile phone or computer users are anywhere in the world. It provides a consistent service that can transmit at 2 Mbps or higher speed.

In a UMTS system, a radio access network is referred to as a UMTS Terrestrial Radio Access Network (UTRAN), and a UTRAN is referred to as a Circuit Service or Circuit Switched (CS) domain or packet service (Packet Service or Packet Switched (hereinafter referred to as PS) Connects a user equipment (UE) to another network through a Core Network (hereinafter referred to as CN) configured as a domain. The entire service area of the UMTS system may be divided into a plurality of registration areas such as a location area (hereinafter referred to as LA) or a routing area (hereinafter referred to as RA).

Here, LA denotes a unit of a registration area for one CN node in the CS domain, and RA denotes a unit of a registration area for one CN node in the PS domain.

In addition, LA or RA is an area that is geographically divided as well as logical. That is, each registration area may be defined as an area belonging to a specific frequency band of a specific geographic area.

In addition, the LA and the RA may each include the same plurality of cells, but may also include different numbers of cells.

In the CS domain, the CN node called Mobile Switching Center (MSC) manages the LA, and in the PS domain, the CN node called the Serving GPRS Supporting Node (hereinafter referred to as "SGSN") manages the RA.

When the mobile communication terminal enters a new LA or RA by movement, the mobile communication terminal performs LA update (hereinafter referred to as LAU) / RA update (hereinafter referred to as RAU).

Through the registration procedure for LA / RA, the CN node knows the location information of which LA / RA the mobile communication terminal is located on, and paging the mobile communication terminal based on the information on the LA / RA where the mobile terminal is located. paging) message.

According to the related art, whenever a mobile communication terminal enters a new RA / LA, a RAU or LAU is performed and a paging message is transmitted in units of RA / LA. Therefore, when the mobile communication terminals are located at the boundary areas of different RA / LA, problems of paging message loss, increased network load, and reduced battery maintenance time of the mobile communication terminals occur.

1 is a diagram illustrating a mobile communication terminal located at an LA boundary area.

Referring to FIG. 1, a first mobile communication terminal 100 and a second mobile communication terminal 102 are located along or along a boundary area of a LA having different LACs (LA codes LAC # 1 and LAC # 2). Is moving across.

When moving along the LA boundary area like the first mobile communication terminal 100, the LA where the mobile communication terminal is located may be continuously changed. At this time, when performing the LAU procedure for each change of the LA according to the prior art, there is a problem that the load of the network occurs, the battery maintenance time of the mobile communication terminal is very short.

In addition, when the mobile communication terminal moves from LAC # 1 to LAC # 2 like the second mobile communication terminal 102, the second mobile communication terminal 102 performs a LAU procedure for notifying the switch of the CN node of the location change. To perform. However, when paging for receiving the second mobile communication terminal 102 is received at the exchange during the LAU procedure, the exchange transmits a paging message to LAC # 1 since the LAU procedure has not been completed.

As such, even though the second mobile communication terminal 102 moves to the new LA, the second mobile communication terminal does not receive the paging message because the exchange transmits a paging message to the previous LA.

The above problem may occur in the case where the RA is changed while the mobile communication terminal is located in the RA boundary area.

The present invention provides a routing area that can prevent an inefficient RAU / LAU of the mobile communication terminal located in the border area by giving a new form of ID to the RA / LA border area to solve the problems of the prior art as described above; A method and a system for controlling location update area update are proposed.

Another object of the present invention is to efficiently perform a RAU / LAU procedure for a mobile communication terminal located in the border region to reduce the load on the network and to increase the battery maintenance time of the mobile communication terminal and control method for updating the location registration area; To provide a system.

Another object of the present invention is to provide a routing area and location registration area update control method and system capable of preventing the loss of a paging message even when a mobile communication terminal moves in a border area.

According to a preferred embodiment of the present invention to achieve the above object, a method for controlling the update of at least one of the routing area and the location registration area in the mobile communication terminal, (a) system information (system) from the wireless network controller (system) receiving information; (b) determining whether a group cell ID is included in the system information, wherein the group cell ID is equally assigned to a plurality of cells adjacent to boundary regions of different routing areas or location registration areas; And (c) determining whether to perform an update for notifying a core network node whether the mobile communication terminal is located in the border region by using the group cell ID.

According to another aspect of the present invention, a method for processing an update of at least one of a routing area and a location registration area of a mobile communication terminal in a core network node, the method comprising: (a) receiving an update request message from the mobile communication terminal; (b) determining whether a group cell ID is included in the update request message; the group cell ID is equally allocated to a plurality of cells adjacent to a boundary area for at least one of a different routing area and a location registration area; -; And (c) storing a list of a routing area or a location registration area matching the group cell ID in a location information DB for the mobile communication terminal.

According to another aspect of the present invention, a wireless network controller for transmitting system information including a group cell ID to a mobile communication terminal located in a boundary area of a different routing area or a location registration area, wherein the group cell ID is adjacent to the border area. Equally assigned to a plurality of cells; And a list of at least one of a routing area and a location registration area matching the group cell ID when the update request message including the group cell ID is received by the mobile communication terminal. Provided is a mobile communication system including a core network node stored in a network.

According to the present invention, an inefficient RAU and LAU procedure of a mobile communication terminal located in a border area can be prevented by assigning the same group cell ID to a plurality of cells adjacent to at least one border area among RA and LA.

In addition, by preventing the RAU / LAU procedure in the border area has the advantage of reducing the load on the network, and can extend the battery life of the mobile communication terminal.

Furthermore, according to the present invention, there is an advantage of preventing the loss of the paging message by performing an update to the mobile communication terminal moving in the border region in advance.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals are used for like elements in describing each drawing.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that no other component exists in the middle.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to facilitate a thorough understanding of the present invention, the same reference numerals are used for the same means regardless of the number of the drawings.

The present invention assigns the same group cell ID to one or more cells adjacent to an RA / LA boundary area in a mobile communication network according to the 3GPP standard, thereby performing RAU / LAU procedure and paging message transmission.

The present invention transmits the RA update message to the packet switched support node when the RA is changed, as well as the first network mode in which the mobile communication terminal sends the RA update request message to the SSGSN when the RA / LA is changed. And a second network mode for transmitting an LA update message to the exchange when the LA is changed.

2 is a diagram illustrating a configuration of a mobile communication system according to an embodiment of the present invention.

As shown in FIG. 2, the mobile communication system according to the present invention includes a Node B (Node B, 200), a Radio Network Controller (RNC) 202, an exchange 204, and a GMSC (Gateway MSC, 206). It may include a packet switched support node 208 (hereinafter referred to as 'SGSN') and a packet gateway support node (210, referred to as 'GGSN').

The mobile communication system of FIG. 2 illustrates a UMTS configuration, but the present invention is limited to a system capable of allocating a group cell ID to a boundary area of a LA / RA as well as UMTS and thus transmitting and receiving an update request message and a paging message. Those skilled in the art will appreciate that they can be applied without.

The node B 200 sets a physical channel required for data exchange with the mobile communication terminal 212 according to the control information transmitted from the radio network controller 202, and converts the data transmitted from the upper protocol to the wireless environment. To the mobile communication terminal 212.

In addition, the Node B 200 transmits data received from the mobile communication terminal 212 to a higher layer protocol of the radio network controller 202.

The radio network controller 202 controls components in the radio network controller to dynamically allocate radio resources of the UTRAN, and performs switching to transfer data transmitted through the UTRAN to an appropriate node. The radio network controller 202 serves as an access point for all services provided through the core network (core network) including the switch 204 and the SGSN 208.

The radio network controller 202 transmits system information including information on the RA / LA where the mobile communication terminal 212 is located to the mobile communication terminal 212.

The core network including the switch 204 to the GGSN 208 performs functions such as call control, session management, mobility management, and the like. Include.

The switch 204 included in the circuit switched area manages the circuit switched connection, and manages the security of the data as well as mobility management such as location information update (LAU), location registration, and paging (paging). Responsible for the relevant function, the GMSC 206 serves as a path through which the circuit switched area is connected to the external network.

SGSN, included in the packet switched area, manages and supports packet switched services destined for the UTRAN. In addition, the mobile station 212 performs a routing area update (RAU), a call (page), and the like for mobility management of the mobile communication terminal 212 provided with the packet switched service.

The GGSN 210 serves as a path connecting the packet switched area to another packet switched network such as the Internet network.

According to a preferred embodiment of the present invention, a plurality of cells 302 adjacent to the border area 300 of the RA / LA is assigned the same group cell ID.

According to the present invention, the mobile communication terminal 212 located in the RA / LA border area receives system information including the group cell ID assigned to the cell adjacent to the border area from the radio network controller 202.

In this case, the mobile communication terminal 212 is connected to the RA / LA boundary region by receiving a group cell ID, comparing a previous group cell ID with a current group cell ID, and comparing a unit cell ID. Determine whether to perform a procedure to signal location or departure from the border area.

The core network node (exchange or SGSN) according to the present invention determines whether the group cell ID is included in the RA / LA update request message transmitted from the mobile communication terminal 212 and manages the location of the mobile communication terminal. .

As described above, according to the present invention, the SGSN 208 receives the RA update request message according to the RA or LA change of the mobile communication terminal 212 and the RA update request message according to the RA change. This processing, and the LA update request message according to the LA change may be applied to all of the second network modes handled by the exchange 204.

For convenience of explanation, the same group cell ID is allocated to the border region of the LA and the second network mode for transmitting the LA update request message according to the change of the LA to the exchange 204 will be described below.

FIG. 3 illustrates a case where two LA boundary regions exist and the same group cell ID is assigned to a cell adjacent to the boundary region.

Referring to FIG. 3, a first mobile communication terminal 310 moving from a cell without a group cell ID to a cell to which a group cell ID is newly allocated receives system information including a group cell ID from the wireless network controller 202. do.

When the group cell ID is received for the first time, the first mobile communication terminal 310 performs an LAU procedure for notifying the switch 204 that the terminal is located in a boundary area, that is, a ping-pong area.

When the first mobile communication terminal 310 transmits a LA update request message including a group cell ID to the exchange 204, the paging of the first mobile communication terminal 310 later, the exchange 204 is a corresponding group cell The paging message is transmitted to a plurality of cells to which IDs are assigned, that is, cells adjacent to a boundary area where the first mobile communication terminal 310 is located.

Meanwhile, the second mobile communication terminal 312 moving along the boundary area 300 is the same group cell ID from the radio network controller 202 even if it is located in any cell adjacent to the boundary area of LAC # 1 or LAC # 2. In this case, the mobile communication terminal 212 does not transmit the LA update request message to the exchange 204.

In addition, even when moving from LAC # 1 to LAC # 2 like the third mobile communication terminal 314, the third mobile communication terminal 314 is located in a cell adjacent to the boundary region of LAC # 2 from LAC # 1 before and after the movement. Therefore, the same group cell ID is received from the radio network controller 202, and if the same group cell ID is received, the LA update request message is not transmitted to the exchange 204 as well.

That is, the second and third mobile communication terminals 312 and 314 do not perform the LAU procedure because the LA is changed (cell reselection) according to the movement, but the group cell ID is in the same cell.

The above process may be performed in the same manner even when the RA is changed.

According to the present invention, in different RA / LA boundary regions, since the core network node updates the location in advance by a plurality of RA / LA units through the group cell ID, the position of the mobile communication terminal is sooner than the RA / LA is changed. Can be updated to prevent the paging message from being lost.

In addition, if the cell reselection of a user residing in the RA / LA border area causes the group cell ID to be the same even if the previous cell ID and RAC (RA Code) / LAC and the current cell ID and RAC / LAC are different, RAU / LAU Since the procedure does not proceed, the number of update attempts can be reduced, and the battery maintenance time of the mobile communication terminal can be increased.

On the other hand, Figure 4 shows the case where there are three intersection points 400 of LA.

In this case, as shown in FIG. 4, the first group cell ID may be assigned to the cell 402 immediately adjacent to the intersection point 400. In this case, the cell to which the first group cell ID is assigned is a cell belonging to three LAs (LAC # 1 to LAC # 3).

In addition, a second group cell ID is allocated to the remaining cells 404 except for the cell to which the first group cell ID is assigned among the cells adjacent to the boundary regions of LAC # 1 and LAC # 2, and the first and third RA / LAs. A third group cell ID may be assigned to the remaining cells 406 except for cells assigned to the first group cell ID among cells adjacent to the border region and cells adjacent to the second and third RA / LA border regions.

Referring to FIG. 4, when the first mobile communication terminal 410 is located in a cell to which a first group cell ID is assigned (cells A to C), the first mobile communication terminal 410 performs an LAU procedure. The exchange 204 then sends a paging message to LAC # 1, LAC # 2, and LAC # 3.

In addition, when the first mobile communication terminal 410 moves between cells A to C, even if the LA of the first mobile communication terminal 410 is changed from LAC # 1 to LAC # 2 or LAC # 3, respectively. Does not perform the LAU procedure because the same group cell ID is assigned.

In addition, even when the second mobile communication terminal 412 moves from LAC # 1 to LAC # 2 like the second mobile communication terminal 412, if the second mobile communication terminal 412 completes the LAU at the boundary area of LAC # 1, the LAC # The LAU procedure following the move from 1 to LAC # 2 is omitted.

On the other hand, when moving from a cell to which a group cell ID is assigned, such as the third mobile communication terminal 414, to a cell to which a group cell ID is not assigned, the third mobile communication terminal 414 meets a predetermined condition. 204) transmits an update request message for notifying that the user has left the boundary area.

After receiving the corresponding update request message, the exchange 204 transmits a paging message in LA units when paging the third mobile communication terminal 414.

In the above, the case where three LAs intersect is described, but the same process may be applied when more LAs intersect.

Hereinafter, a process of performing an update procedure according to the present invention will be described in detail with reference to FIGS. 5 to 12.

5 is a block diagram of a mobile communication terminal according to an embodiment of the present invention.

As shown in FIG. 5, the mobile communication terminal according to the present invention includes a group cell ID reception determining unit 500, an update determining unit 502, a group cell ID comparing unit 504, a cell ID comparing unit 506, and The message generator 508 may be included.

6 is a flowchart illustrating an update procedure performed in a mobile communication terminal according to the present invention. Hereinafter, the configuration and update procedure performed by the mobile communication terminal according to the present invention will be described in detail with reference to FIGS. 5 to 6. .

Referring to FIG. 6, the mobile communication terminal receives system information from the radio network controller 202 (step 600), and the group cell ID reception determining unit 500 determines whether the group cell ID is included in the corresponding system information. (Step 602).

The update determination unit 502 determines whether to perform an update procedure for notifying that the mobile communication terminal is located in or out of the LA boundary area using the group cell ID.

When the group cell ID is included in step 602, the update determination unit 502 determines whether the update has already been performed in the LA boundary area with respect to the corresponding mobile communication terminal (step 604).

Here, step 604 is a process of determining whether the received group cell ID is first received.

If the group cell ID is received for the first time, the message generating unit 508 generates an update request message for notifying that the mobile communication terminal is located in the border area of the LA (step 606).

7 illustrates a format of a LA update request message transmitted to an exchange when a mobile communication terminal is located in an LA boundary area according to the present invention.

Referring to FIG. 7, the message generating unit 508 according to the present invention does not use the LA update request message type defined in 3GPP 24.00 as shown in FIG. 8 when the mobile communication terminal is located in the LA boundary area. Create an LA update request message that includes the cell ID.

Meanwhile, FIG. 9 illustrates a format of an RA update request message transmitted to the SGSN 208 when the mobile communication terminal is located in the RA / LA boundary area according to the second network mode.

Referring to FIG. 9, the message generator 508 according to the present invention does not use the RA update request message type defined in 3GPP 24.00 as shown in FIG. 10 when the mobile communication terminal is located in the RA / LA boundary area. And an RA update request message including the group cell ID instead of the RAC.

At this time, when the LA is changed, the SGSN 208 delivers the LAC included in the update request message to the exchange 204.

If the update determination unit 502 determines that the update has already been completed in the LA boundary area in step 604, the group cell ID comparison unit 504 compares the previously received group cell ID with the currently received group cell ID. (Step 608).

If the previous and current group cell IDs are different from each other, the message generator 508 generates an LA update request message to perform an update procedure for the cell to which the new group cell ID is assigned (step 610).

On the other hand, if it is determined in step 602 that the group cell ID is not included, the process proceeds to step 612.

At this time, the update determination unit 502 determines whether the update has been performed previously located in the LA boundary area with respect to the corresponding mobile communication terminal (step 612).

Here, step 612 is a process of determining whether a group cell ID is included in previously received system information.

If there was no update at the LA boundary area before, the general update procedure of 3GPP proceeds (step 614).

Meanwhile, when the system information does not include the group cell ID, the unit cell ID may be included. If the system information does not include the group cell ID and the update is performed in the LA boundary area previously, the cell ID comparison unit 506 determines that the unit cell ID included in the system information is first received after receiving the group cell ID. It is determined whether it is a cell ID (step 616).

If the currently received unit cell ID is not the first ID received after the group cell ID is received, the cell ID comparison unit 506 compares the first received unit cell ID with the currently received unit cell ID (step 618).

If the currently received unit cell ID is the first received ID after receiving the group cell ID, the received cell ID is stored (step 620).

Meanwhile, in operation 618, when the first received unit cell ID and the currently received unit cell ID are different from each other, the message generator 508 generates an update request message for notifying that the mobile communication terminal has left the LA boundary area. (Step 622).

Here, steps 616 to 618 illustrate a process performed when the mobile communication terminal moves twice from a cell to which a group cell ID is assigned to a cell to which a group cell ID is not assigned. It describes the case where the cell ID is received twice.

However, one of ordinary skill in the art should understand that the number of reception of different unit cell IDs may be variously changed after receiving the group cell ID for notifying that the mobile communication terminal has left the LA boundary area.

11 is a block diagram of a core network node according to an embodiment of the present invention.

11 illustrates a core network node for receiving and processing an RA or LA update request message from a mobile communication terminal, which may be an exchange 204 or an SGSN 208 according to a network mode. Explain that

As shown in FIG. 11, the switch 204 according to the present invention includes an update message receiver 1100, an update type determiner 1102, a group cell ID storage 1104, a matching list storage 1106, and a location. It may include an information database 1108 and a paging message transmitter 1110.

12 is a flowchart of a process of processing an update request message in a core network node according to the present invention.

11 to 12, the update message receiving unit 1100 receives a LA update request message transmitted by the mobile communication terminal 212 whose LA is changed (step 1200).

The update type determination unit 1102 determines the type of the update request message (step 1202). Here, step 1202 is a process of determining whether the group cell ID is included in the LA update request message.

If the group cell ID is included, the group cell ID storage unit 1104 stores the group cell ID included in the received update request message (step 1204).

The matching list storage unit 1106 according to the present invention stores the LA list matching the group cell ID. The LA list includes each LA identification information corresponding to the cell to which the group cell ID is assigned, that is, the LAC.

As described above, when the update request message includes the group cell ID, the location information database 1108 stores the LA list matching the received group cell ID as location information of the corresponding mobile communication terminal (step 1206).

Thereafter, when paging, the paging message transmitter 1110 transmits a paging message to a plurality of LAs included in the LA list by referring to the location information database 1108 (step 1208).

For example, when the first mobile communication terminal 310 is located in the boundary region as shown in FIG. 3, LA identification information such as LAC # 1 and # 2 is stored in the LA list corresponding to the first mobile communication terminal. The exchange 204 sends a paging message to LACs # 1 and # 2.

On the other hand, if the group cell ID is not included in step 1202, the process proceeds to step 1210, and the location information database 1108 stores the LAC included in the update request message as the location information of the corresponding mobile communication terminal (step 1212).

11 to 12 illustrate a process performed by an exchange when an LA is changed, when an RA update request message is processed by SGSN when an RA is changed, or when an LA is updated by an exchange 204 to the SGSN 208 when an LA is changed. The same process may be performed when the request message is received and processed.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art will be able to make various modifications, changes, and additions within the spirit and scope of the present invention. Additions should be considered to be within the scope of the following claims.

1 is a diagram illustrating a mobile communication terminal located at a border area of LA.

2 is a diagram illustrating a configuration of a mobile communication system according to the present invention.

3 is a diagram illustrating a case where two LA boundary regions exist and the same group cell ID is assigned to a cell adjacent to the boundary region.

4 is a diagram illustrating a case where three LA intersection points 400 exist.

5 is a block diagram of a mobile communication terminal according to an embodiment of the present invention.

6 is a flowchart illustrating a procedure of performing an update procedure in a mobile communication terminal according to the present invention;

7 is a diagram illustrating a format of a location registration area update request message transmitted to an exchange when a mobile communication terminal is located in an LA boundary area according to the present invention;

8 shows a LA update request message format defined in 3GPP 24.00.

9 is a diagram illustrating a format of an RA update request message transmitted to SGSN 208 when a mobile communication terminal is located in an RA / LA boundary area according to a second network mode.

10 illustrates a routing area update request message format defined in 3GPP 24.00.

Figure 11 is a block diagram of an exchanger according to one preferred embodiment of the present invention.

12 is a flowchart illustrating a process of processing an update request message in a core network node according to the present invention.

Claims (15)

A method for controlling an update of at least one of a routing area and a location registration area in a mobile communication terminal, (a) receiving system information from a wireless network controller; (b) determining whether a group cell ID is included in the system information, wherein the group cell ID is equally assigned to a plurality of cells adjacent to boundary regions of different routing areas or location registration areas; (c) determining whether to perform an update for notifying a core network node whether the mobile communication terminal is located in the border region by using the group cell ID; And and (d) transmitting an update request message to inform the core network node that the mobile communication terminal is located in the border area when the group cell ID is first received. delete The method of claim 1, The update request message includes the group cell ID, And the core network node stores a list of at least one of a routing area and a location registration area matching the group cell ID in a location information DB for the mobile communication terminal. The method of claim 3, And the core network node transmits a paging message to a plurality of routing areas or location registration areas included in the list. The method of claim 1, If the cell to which the group cell ID is not assigned is reselected more than a predetermined number of times, transmitting an update request message to inform the core network node that the mobile communication terminal has left the boundary area. Including, And when the core network node receives the update request message, transmits a paging message in units of a routing area or a location registration area in which the mobile communication terminal is currently located. The method of claim 1, When the group cell ID is not received for the first time, an update request is performed to compare the previous group cell ID with the current group cell ID and to notify the core network node that the group cell ID is different to move to another boundary region. Update control method further comprising the step of sending a message. The method of claim 1, And wherein said core network node is at least one of a packet switched support node and a switch. The method of claim 7, wherein And transmitting a routing area update request message to the packet switched support node when at least one of the routing area and the location registration area is changed. The method of claim 1, The same group cell ID is assigned to three cells adjacent to the intersection point at a point where n (n is a natural number of 3 or more) routing areas or location registration areas intersect. A method of processing an update of at least one of a routing area and a location registration area of a mobile communication terminal in a core network node, the method comprising: (a) receiving an update request message from the mobile communication terminal; (b) determining whether a group cell ID is included in the update request message; the group cell ID is equally allocated to a plurality of cells adjacent to a boundary area for at least one of a different routing area and a location registration area; -; (c) storing a list of a routing area or a location registration area matching the group cell ID in a location information DB for the mobile communication terminal; And (d) transmitting a paging message to a plurality of routing areas or location registration areas included in the list. delete The method of claim 10, If the cell to which the group cell ID is not assigned is reselected more than a predetermined number of times and an update request message is received from the mobile communication terminal, the step (c) is a code value for the current routing area or location registration area. Update control method for storing the location information DB of the mobile communication terminal. A wireless network controller for transmitting system information including a group cell ID to a mobile communication terminal located in a boundary area of a different routing area or a location registration area. The group cell ID is equally allocated to a plurality of cells adjacent to the border area. -; And When the mobile communication terminal receives an update request message including the group cell ID, a list of at least one of a routing area and a location registration area matching the group cell ID is stored in the location information DB of the mobile communication terminal. Include the core network node that stores it, And when the group cell ID is first received, transmits an update request message to inform the core network node that the mobile communication terminal is located in the border area. The method of claim 13, And wherein the core network node is at least one of a packet switched support node receiving an update request message of the routing area and a switch receiving the location registration area update request message. The method of claim 13, After storing the list, the core network node selects the location information DB from the current routing area or location registration area unit when the mobile communication terminal is reselected more than a preset number of times the cell to which the group cell ID is not assigned. Mobile communication system updated with.

Images