KR100749370B1 - Method for paging in mobile communication system - Google Patents

Abstract

A paging method in a mobile communication system is provided to be capable of separating paging signals of a voice call and an SMS(Short Message Service) call for independent operation, when an overload is predicted owing to the increase of SMS calls, thus a stable service of the system is offered while a system load is reduced. When a call is requested by a terminal, it is decided whether the requested call is a voice call or an SMS call. In case of the SMS call, the first paging is attempted to all cells of a particular BSC(Base Station Controller) where location of the terminal is registered, and in case of the voice call, the first paging is attempted to a cell set in a PAI(Paging Area Indicator) zone where location of the terminal is registered.

Description

Paging method in mobile communication system {METHOD FOR PAGING IN MOBILE COMMUNICATION SYSTEM}

1 is a view showing the configuration of a network of a general mobile communication system.

2 is a flowchart illustrating a paging method in a mobile communication system according to the present invention.

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

10: mobile communication terminal

20: base station

30: base station controller

40: exchanger

50: Internet network

The present invention relates to a paging method in a mobile communication system, and more particularly, overload is expected due to an increase in an SMS call in a mobile communication system, so that paging of a voice call and an SMS call is independently operated to provide a stable service of a mobile communication system. The present invention relates to a paging method in a mobile communication system for increasing call processing capacity by providing a system and reducing a system load.

FIG. 1 is a diagram illustrating a network configuration of a general mobile communication system. As shown in FIG. 1, a mobile communication system includes a mobile communication terminal 10 and a plurality of base stations 20 communicating with the mobile communication terminal. (21) and 22, and the base station controller 30 and 31 for controlling the base station.

In addition, the base station controllers 20, 21, and 22 are connected to the Internet, Public Switched Telephone Network (PSTN), and Public Switched Data Network (PSDN) 50 for gateway (GW) / mobile switching (MSC). Via Center 40. In this case, the GW is a logical name, and is also commonly called a PDSN (Packet Date Sevice Node), an AGW (Access Gateway), or a MGW (Media Gateway).

The present invention relates to a terminal call (paging or paging) required for the processing of a mobile communication terminal incoming call (Call). That is, when a call is requested to a specific terminal from the outside, first, a process of finding the location of the terminal is required. This is called paging, and information about the latest location registered by the terminal is recorded in the switching device (MSC), and paging is performed using the latest location information. The terminal repeats the process of notifying the switching device of its current location periodically during the movement or stoppage for the paging process.

The paging method according to the prior art is performed in accordance with the configuration between the switch, the base station controller, the base station. That is, as shown in FIG. 1, a specific base station is connected to a specific base station controller, and the base station controller is also connected to a specific exchange. Therefore, if one terminal is registered in the region of a specific base station, it may be said that it belongs to the region of a specific base station controller and a specific exchange.

The paging method according to the prior art as described above is performed as follows.

1. Primary paging: According to the location information of the called terminal recorded in the exchange, the paging command is issued to the base station recently registered by the called terminal.

2. Secondary paging: If primary paging fails due to deterioration of the communication environment, the exchange issues a secondary paging command to neighboring base stations including the corresponding base station. This is because the configuration of the base station is a cell (cell) structure so that if the specific base station is known, neighboring base stations can be known. In this case, the secondary paging command is issued to all base stations managed by the upper base station controller of the specific base station that performed the primary paging.

When performing the above-described first and second paging, the prior art has a hierarchical structure, so that commands for primary or secondary paging can be efficiently transmitted only to a specific base station controller and a specific base station. This is because a dedicated line such as E1 / T1 is used for the link between the switch and the base station control period and the base station controller and the base station.

In addition, when performing paging, the prior art commonly uses a voice call and an SMS call in a mobile communication exchange.

However, in recent years, the SMS rate has become the same as the voice call due to the change of mobile communication environment such as the provision of unlimited SMS service. [For example: voice call: 55%, SMS: 45%] As a result, overloading is expected in the paging process.

Therefore, in the case of an SMS incoming call that generates a large number of calls during the first and second paging, there is a problem that unnecessary load of the system occurs because paging requests are made to all the set ASPs of the MSC as well as the base station where the subscriber is actually registered. .

The present invention was devised to solve the above problems of the prior art, which is expected to be overloaded due to an increase in SMS calls in a mobile communication system, so that the paging of voice calls and SMS calls is independently operated to provide a stable service of a mobile communication system. It provides a paging method in the mobile communication system to increase the call processing capacity by reducing the system load and reducing the system load.

In accordance with another aspect of the present invention, there is provided a paging method of a mobile communication system, the method comprising: determining whether a requested call is a voice call or an SMS call when a call is requested from a terminal; And if the determination result is an SMS call, attempts primary paging to all cells of a registered BS controller (BSC), and if the determination result is a voice call, a paging area indicator registered with the position of the terminal. 2) attempting a first paging to the cell set in the zone.

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On the other hand, if the primary paging fails, the subscriber performs a secondary type of broad paging requesting paging attempts to all base station cells connected to all base station controllers of the exchange.

As described above, the present invention is expected to overload due to the increase of the SMS call such that the SMS rate is equivalent to the voice call according to the change of the mobile communication environment such as the provision of SMS unlimited service in the mobile communication system, so that the paging of the voice call and the SMS call is separated. Independent operation aims to provide stable service of mobile communication system and increase call processing capacity by reducing system load.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

1 is a diagram illustrating a network configuration of a general mobile communication system.

As shown in FIG. 1, the configuration of the mobile communication system includes a mobile communication terminal 10, a plurality of base stations 20 (21) 22 which communicate with the mobile communication terminal, and a base station controller which controls the base station ( 30) 31.

In addition, the base station controllers 20, 21, and 22 are connected to the Internet, Public Switched Telephone Network (PSTN), and Public Switched Data Network (PSDN) 50 for gateway (GW) / mobile switching (MSC). Via Center 40.

In this case, the GW is a logical name, and is also commonly called a PDSN (Packet Date Sevice Node), an AGW (Access Gateway), or a MGW (Media Gateway).

In the mobile communication system, when paging is required by the request of the mobile communication terminal, the base station controller requests information on the called terminal from the exchange to know the latest location of the called terminal, and the exchange receives the stored base station information. Perform primary paging.

Here, the information about the base station becomes the IP address of the base station to which the called terminal belongs.

If the primary paging fails, the base station controller should send a paging command to a plurality of base stations other than the specific base station registered with the exchange. The base station targeted for such secondary paging depends on the network configuration.

Referring to the paging method in the mobile communication system according to the present invention in detail as follows.

2 is a flowchart illustrating a paging method in a mobile communication system according to the present invention.

First, in the paging method of the mobile communication system, when a call is requested to a specific mobile communication terminal from the outside, paging is performed by classifying voice call paging or SMS call paging according to whether the requested call is a voice call or an SMS call. do.

As shown in FIG. 2, the present invention transmits an SMDPP message for SMS incoming attempt from an SMSC to an MSC, and the RLOE block transmits an MS_RLH_SMSDPPRQi signal to an SMC block of an INP processor (a to b of FIG. 2). See step).

At this time, if the calling (incoming) subscriber is FC + (DGT + DD) + SEND, the service is invoked to the MSC through the MS_FlashWithInfo message (see step b of FIG. 2).

Then, the call processing is performed with reference to the SMS paging set by the operator in the SMC block of the INP processor as follows (see steps c to d of FIG. 2).

At this time, SMS call paging transfers the ADDS_PageRQ signal to the SMC block of the ASP including the specific cell in case of cell paging, and requests paging attempt to the MPC block of the ASP where the service is requested (steps e to g of FIG. 2). Reference).

In addition, when SMS call paging is BSC (new implementation) paging, the subscriber sends an ADDS_PageRQ signal to the SMS block of the location-registered ASP and requests all cell paging attempts of the BSC to the MPC block (h ~ in FIG. 2). j step).

Also, if SMS call paging is PAI paging, each SMC block that is requested for service after passing ADDS_PageRQ signal to SMC block of ASP including each cell by referring to the cell information of PAI1 or PAI2 is set as PAI zone (MPC block). Request a paging attempt to the cell set (see step k ~ m of FIG. 2).

In addition, in case of SMS paging is Broad paging, ADDS_PageRQ signal is transmitted to SMC block of all ASP connected with BSC of MSC, and SMC block requesting service requests paging attempt to all cells configured in BSC as MPC block. (See step o ~ q in FIG. 2).

In addition, after performing a paging procedure for each paging, SMS incoming call processing is performed upon receiving a paging response message (see step r of FIG. 2).

Referring to the paging method in the mobile communication system according to the present invention, if a call is requested to the mobile communication terminal, the voice call and the SMS call are classified according to voice call paging or SMS call paging according to whether the requested call is a voice call or an SMS call. Independent operation of paging is performed.

In this case, the SMS call paging performs a primary paging by requesting paging attempt to all cells of a specific BS controller whose location is registered, and the cell covers an area covered by one base station (BTS). Refers to.

At this time, if the primary paging fails, the subscriber performs a secondary type of broad paging requesting paging attempts to cells of all base stations connected to all base station controllers of the exchange.

Meanwhile, the voice call paging refers to cell information of a paging area indicator (PAI) zone in which several adjacent cells are configured as one paging area, and a subscriber requests a paging attempt to a cell of a specific registered PAI zone. Perform paging.

In this case, if the primary paging fails, the subscriber performs a secondary secondary paging in which a subscriber requests paging attempt to all base station cells connected to all base station controllers of the exchange.

As described above, the present invention is expected to overload due to the increase of SMS calls, such as the SMS rate is equivalent to the voice call in accordance with the mobile communication environment changes, such as providing unlimited SMS service, so that the paging of the voice call and SMS calls are separated. By operating independently, it provides stable service of mobile communication system and increases call processing capacity by reducing system load.

As described above, the present invention is expected to overload due to the increase of the SMS call, such as the SMS rate is equivalent to the voice call in accordance with the change in the mobile communication environment, such as providing unlimited SMS service in the mobile communication system, paging of the voice call and SMS call By separating and operating independently, there is an advantage of providing stable service of mobile communication system and increasing call processing capacity by reducing system load.

Claims (5)

In the paging method of a mobile communication system, Determining whether the requested call is a voice call or an SMS call when a call is requested from a terminal; And If the determination result is an SMS call, the first paging attempt is performed to all cells of a registered base station controller (BSC), and if the determination result is a voice call, a paging area indicator (PAI) is registered. And paging first cell to a cell set in the zone. delete The method of claim 1, If the primary paging fails, A method of paging in a mobile communication system, characterized in that a subscriber performs broad secondary paging requesting paging attempts to cells of all base stations connected to all base station controllers of a location registered exchange. delete delete

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