KR20080095530A - Method for compulsory power off portable terminal in mobile communication system and system thereof - Google Patents

Abstract

The present invention relates to a method and a system for forcibly terminating a portable terminal in a mobile communication system. The present invention relates to a process of receiving a system information including location information when a portable terminal enters a specific location, and wherein the portable terminal receives the location information. Transmitting a location update request message according to the message, a network transmitting a location update rejection message including a specific rejection reason field corresponding to the location update request, and the mobile terminal forcibly terminates according to the rejection reason Provided is a method for forcibly terminating a portable terminal, and a system according to the same.

Description

Method for compulsory power off portable terminal in mobile communication system and system

1 is a configuration diagram of a network supporting GSM TDMA (second generation) and UMTS W-CDMA (third generation) based on a packet switched network.

2 is a flowchart illustrating a forced termination method of a mobile terminal according to an exemplary embodiment of the present invention.

The present invention relates to a mobile communication system, and more particularly, to a method for forcibly terminating when a mobile terminal enters a specific area in a mobile communication system.

A general mobile communication network may be installed in units of cells, which are basic units, to operate a communication network. A cell refers to a small area in which one unit service area is divided into cell types to install a base station of small transmission power.

Such a cell allows geographical location of a mobile communication network service. In addition, the cell can serve a mobile terminal of a plurality of users located in one cell by using a code division multiple access (CDMA) method.

Portable terminals are purchased and used by most people because of their convenience and usefulness.

However, the convenience and usefulness of the portable terminal is a story when using the screen anywhere and anytime. Unfortunately, due to the mobility of the mobile terminal, it is used anywhere and anytime.

For example, in theaters and performance halls, there are frequent cases of harming others due to noise caused by the use of mobile terminals, and it is also familiar to watch games or broadcast while making loud calls or making loud sounds more than necessary in subways. In particular, there are people who use a mobile terminal despite the damage caused by radio waves during takeoff and landing of the aircraft. For this reason, in spite of enlightenment through public service advertisements such as turning off the portable terminal or switching to the vibration mode in a public place, there are frequent cases in which the portable terminal is accidentally turned on without worrying.

For this reason, there is a demand for a method of automatically terminating when a mobile terminal is placed in a specific location that can be distinguished using a geographic location of a specific cell of a cellular system regardless of rudeness or indifference of people.

Accordingly, an object of the present invention is to provide a method and system that can be forcibly terminated when a mobile terminal enters a specific area in a mobile communication network.

In the method of forcibly terminating a portable terminal according to an exemplary embodiment of the present invention for achieving the above object, a process of receiving a system information including location information by entering a specific location of the portable terminal, Transmitting a location update request message according to the location information, a network transmitting a location update reject message including a specific rejection reason field corresponding to the location update request, and the portable terminal according to the rejection reason This involves a forced shutdown of itself.

The rejection reason field is characterized in that a value defined to forcibly terminate the portable terminal is described.

The location information may be a location area identification (LAI), and the LAI may include a mobile country code (MCC), a mobile network code (MCC), and a location area code (LAC).

The LAI is set so that the LAI can be distinguished from an adjacent cell, and sets the LAC value of the LAI.

According to an embodiment of the present invention, a forced terminal termination system according to an embodiment of the present invention may receive a location update rejection message including a specific rejection reason field when receiving a location update request message from a portable terminal entering a specific location. Transmitting network; And a portable terminal forcibly terminating itself according to the rejection reason field.

The network may describe a value defined for forcibly terminating the portable terminal in the rejection reason field.

And the network includes at least one of a GSM network and a UMTS network.

The location information is LAI, and the LAI is characterized in that it includes a mobile country code (MCC), a mobile network code (MCC), and a location area code (LAC). The LAI is preferably set to a value so that the LAI can be distinguished from an adjacent cell.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, only the parts necessary for understanding the operation according to the embodiment of the present invention will be described, it should be noted that the description of other parts will be omitted so as not to distract from the gist of the present invention.

The terms or words used in the specification and claims described below should not be construed as being limited to ordinary or dictionary meanings, and the inventors are appropriate as concepts of terms for explaining their own invention in the best way. It should be interpreted as meanings and concepts in accordance with the technical spirit of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only one of the most preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

On the other hand, examples of the network applied in the embodiment of the present invention, 2G (2nd Generation) Global System for Mobile Communications (GSM) radio access (radio access) networks, 2.5G GSM and Code Division Multiple Access (CDMA) network 3G Universal Mobile Telephone System (UMTS) and Wideband Code Division Multiple Access (WCDMA) networks, other communication networks, and combinations of such networks. Since such networks are generally known, further description will be omitted here. In particular, the embodiment of the present invention will be described on the representative of the case that the base station is a UMTS Terrestrial Radio Access Network (UTRAN) of the UMTS network.

In addition, examples of the user terminal in the embodiment of the present invention, International Mobile Telecommunication 2000 (IMT-2000), Time Division Multiple Access (TDMA), Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), All communication terminals operating according to one or more applicable communication protocols corresponding to Universal Mobile Telecommunication Service (UMTS) and Wideband Code Division Multiple Access (WCDMA), and the like. Can be applied to all information and communication devices such as digital broadcasting receivers, personal digital assistants (PDAs), smart phones and mobile phones, laptops or notebook computers, and applications thereof. It will be obvious.

The present invention relates to a system for controlling a mobile terminal using system information and a method of operating the same in a mobile communication system. In an embodiment of the present invention, in providing a packet service such as a packet data service or a general packet radio service (GPRS) in a mobile communication system, a system for restricting the provision of the mobile communication service at a specific location. And to a method thereof.

Specifically, in the embodiment of the present invention, when the mobile terminal moves to a specific location (region), the mobile terminal is forcibly powered off to limit its use.

Accordingly, when the portable terminal is located on the runway and the plane, and the user does not power off the portable terminal, the public terminal does not disturb the takeoff and landing of the plane during takeoff and landing on the public side, and the portable terminal continues on the private side. The base station can be searched to prevent the battery from being exhausted. In addition, it is possible to prevent the user from inadvertently causing noise in public places such as theaters, performance halls, lecture rooms, and libraries.

To this end, in an embodiment of the present invention, first, a network is set so that a specific cell has different location information from a neighboring cell in order for the mobile terminal to perform a location registration procedure at a specific location (a specific cell). Second, a specific message is newly defined to automatically terminate when the mobile terminal receives the specific message. Third, the mobile terminal receiving the specific message is normally terminated.

Here, the location information is based on the system information message broadcasted by the network.

SYSTEM INFORMATION provides information common to the cell to which the mobile terminal belongs, thereby allowing the mobile terminal to access the network. In a mobile communication system, system information is given to all mobile terminals.

The system information includes a scheduling block that aggregates various system information, a master information block (hereinafter referred to as a 'MIB') for network information, and a plurality of various system information blocks (System Information Block, hereinafter referred to as 'SIB'). The system information message is periodically sent to the mobile terminal, and each SIB may be divided into a plurality of divided blocks.

The mobile terminals receive a system information message through a specific channel (eg, a Broadcast Control Channel (BCCH)) from a network (eg, a UMTS Terrestrial Radio Access Network) that manages a cell to which they belong.

The mobile terminal acquires information necessary for the mobile terminal to access the network, including core network information and network information, through system information. This information includes location information.

Next, a network to which the above-described embodiment of the present invention is applied will be described. 1 is a configuration diagram of a network supporting GSM TDMA (second generation) and UMTS W-CDMA (third generation) based on a packet switched network.

Referring to FIG. 1, the network 200 according to an embodiment of the present invention includes at least one of a 2G generation network according to the GSM TDMA protocol and a 3G generation network based on the UMTS W-CDMA protocol. can do.

In a 2G network, a base station subsystem (BSS) 210 connects to a packet switched network 250 such as the Internet through a mobile switching center (MSC) 220 and uses a voice communication protocol based on GSM TDMA. And provide data services.

In addition, in the 3G network, the UMTS Terrestrial Radio Access Network (UTRAN) 230 connects to the packet switched network 250 via the CN (Core Network) 240 and uses voice and communication protocols based on UMTS W-CDMA. Provide data services. Here, the UTRAN 230 may be configured to include a Node-B, a Radio Network Controller (RNC), and the like. In addition, the CN may include a Serving GPRS Support Node (SGSN), a Gateway GPRS Support Node (GGSN), and the like.

A user equipment (UE) 100 according to an embodiment of the present invention may support one or more of UMTS and GSM / GPRS. The mobile terminal 100 performs a call service using a communication protocol based on GSM / GPRS in the service area of the BSS 210, and performs a call service using a communication protocol based on UMTS in the service area of the UTRAN 230. Perform.

In order to perform automatic termination according to an embodiment of the present invention using a GSM / GPRS TDMA system and a UMTS W-CDMA system, the mobile terminal 100 may be configured with a logical channel according to a communication protocol based on GSM / GPRS and UMTS, respectively. It has a network layer (third layer) and a data link layer (second layer) that control radio resources.

Here, the network layer and the data link layer should be able to share a physical layer with an upper layer meaning a fourth layer or more according to an Open Systems Interconnection (OSI) model.

In addition, the mobile terminal 100 may include an application for automatic termination upon receiving a location update reject message including a specific reject cause according to an embodiment of the present invention. have.

Next, a method of forcibly terminating the portable terminal 100 by the network 200 having the above-described configuration will be described. 2 is a flowchart illustrating a forced termination method of the mobile terminal 100 according to an exemplary embodiment of the present invention. Here, the network 200 includes any one or more of the 2G network and the 3G network of FIG. 1, and the embodiment of the present invention may be implemented even if only one network exists.

Referring to FIG. 2, the network 200 may periodically broadcast SYSTEM INFORMATION. Such system information includes information commonly required by mobile terminals in a corresponding cell, and may be transmitted through a BCCH (Broadcast Control CHannel).

When the mobile terminal 100 moves to a specific position, the mobile terminal 100 receives system information from the network 200 of the cell in step S201.

Here, the specific location is a predetermined place in order to avoid inconvenience due to noise or radio wave of the mobile terminal 100. System information includes information about a specific location. According to an embodiment of the present invention, a location area identifier (LAI, hereinafter referred to as "LAI") is used as location information for identifying the location of the mobile terminal 100.

The LAI may be configured to include a mobile country code (MCC), a mobile network code (MCC), and a location area code (LAC). In particular, in the 3G network, the LAI includes a Public Land Mobile Network (PLMN) ID and a LAC for distinguishing core networks, and the PLMN ID includes an MCC and an MNC.

In the case of 2G (GSM) networks, the LAI may be transmitted through SI3 (SYSTEM INFORMATION TYPE 3). In addition, in the case of 3G (UMTS) network, the LAI may be transmitted through a SIB1 (SYSTEM INFORMATION BLOCK 1) message.

At this time, the LAI is set to have a different value from that of the adjacent cell. Preferably, the LAC is changed to change the LAI. For this reason, the mobile terminal 100 receiving the location information (LAC including the LAC) recognizes that the location has changed and performs a location registration procedure.

In order to register the location, the mobile terminal 100 transmits a location update request message to the network 200 in step S203.

The location update request message transmitted by the mobile terminal 100 to the network 200 is for requesting a location information file or for requesting "International Mobile Station Identity (IMSI) attach". Table 1 below is for explaining the location update request message.

IEI Information element Type / Reference Presence Format Length Mobility management Protocol discriminator Protocol discriminator 10.2 M V 1/2 Skip indicator Skip Indicator 10.3.1 M V 1/2 Location Updating Reject message type Message type 10.4 M V One Location Updating type Reject cause 10.5.3.6 M V 1/2 Ciphering key sequence number Ciphering key sequence number 10.5.1.2 M V 1/2 Location area identification Location area identification 10.5.1.3 M V 5 Mobile station classmark Mobile station classmark 1 10.5.1.4 M V One Mobile identity Mobile identity 10.5.1.4 M LV 2-9 33 Mobile station classmark for UMTS Mobile station classmark 2 10.5.1.6 O TLV 5

In response to the location update request message, the network 200 transmits a location update rejection message to the mobile terminal 100 in step S205.

The network 200 may send a location update reject message to the mobile terminal 100 to notify that the location update or "IMSI attach" has failed. Table 2 below is for explaining the location update rejection message.

IEI Information element Type / Reference Presence Format Length Mobility management Protocol discriminator Protocol discriminator 10.2 M V 1/2 Skip indicator Skip Indicator 10.3.1 M V 1/2 Location Updating Reject message type Message type 10.4 M V One Reject cause Reject cause 10.5.3.6 M V One

Table 2 shows the components of the location update reject message according to TS 24.008. Referring to Table 2, the reject cause field of the components of the location update reject message describes the reason why the location update is rejected.

Here, the location update reject message according to an embodiment of the present invention describes "compulsory UE power off" in the rejection reason field of the message. Accordingly, the network 200 causes the mobile terminal 100 to be forcibly terminated by transmitting a location update reject message including the rejection reason field.

Table 3 below is for explaining the reason for rejection according to an embodiment of the present invention.

Reject cause value (octet 2) Bits 8 7 6 5 4 3 2 1 0 0 0 0 0 0 1 0 IMSI unknown in HLR 0 0 0 0 0 0 1 1 Illegal MS 0 0 0 0 0 1 0 0 IMSI unknown in VLR 0 0 0 0 0 1 0 1 IMEI not accepted 0 0 0 0 0 1 1 0 Illegal ME 0 0 0 0 1 0 1 1 PLMN not allowed 0 0 0 0 1 1 0 0 Location Area not allowed 0 0 0 0 1 1 0 1 Roaming not allowed in this location area 0 0 0 0 1 1 1 1 No Suitable Cells In Location Area 0 0 0 1 0 0 0 1 Network failure 0 0 0 1 0 1 0 0 MAC failure 0 0 0 1 0 1 0 1 Synch failure 0 0 0 1 0 1 1 0 Congestion 0 0 0 1 0 1 1 1 GSM authentication unacceptable 0 0 1 0 0 0 0 0 Service option not supported 0 0 1 0 0 0 0 1 Requested service option not subscribed 0 0 1 0 0 0 1 0 Service option temporarily out of order 0 0 1 0 0 1 1 0 Call cannot be identified 0 0 1 1 0 0 0 0} to} retry upon entry into a new cell 0 0 1 1 1 1 1 1 } 0 1 0 1 1 1 1 1 Semantically incorrect message 0 1 1 0 0 0 0 0 Invalid mandatory information 0 1 1 0 0 0 0 1 Message type non-existent or not implemented 0 1 1 0 0 0 1 0 Message type not compatible with the protocol state 0 1 1 0 0 0 1 1 Information element non-existent or not implemented 0 1 1 0 0 1 0 0 Conditional IE error 0 1 1 0 0 1 0 1 Message not compatible with the protocol state 0 1 1 0 1 1 1 1 Protocol error, unspecified 0 1 1 1 0 0 0 0 compulsory UE power off Any other value received by the mobile station shall be treated as 0010 0010, 'Service option temporarily out of order'. Any other value received by the network shall be treated as 0110 1111, 'Protocol error, unspecified'. NOTE: The listed reject cause values are defined in Annex G.

Referring to Table 3, the rejection reason field describes a reject cause value, and the rejection reason is defined in each rejection reason value.

According to an embodiment of the present invention, the rejection reason "compulsory UE power off" is mapped to the rejection reason value "0111 0000" and described in the rejection reason field. In this case, the rejection reason value may be selected and defined from values other than “0111 0000” that are not duplicated and are not pre-allocated.

The mobile terminal 100 receiving the location information update message is forcibly terminated in step S207.

As described above, in the detailed description of the present invention has been described with respect to specific embodiments, various modifications are possible without departing from the scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below, but also by the equivalents of the claims.

As described above, according to the method proposed by the present invention, when the mobile terminal enters a specific location and registers the location in the network, the network may forcibly terminate the mobile terminal through the location registration rejection message. Therefore, there is an advantage that can be avoided by the noise of the mobile terminal or inconvenience caused by the radio wave of the mobile terminal.

Claims (11)

In the forced termination method of the mobile terminal, The mobile terminal enters a specific location and receives system information including location information; Transmitting, by the portable terminal, a location update request message according to the location information; Transmitting, by the network, a location update rejection message including a specific rejection reason field corresponding to the location update request; And forcibly terminating the portable terminal according to the rejection reason. The method according to claim 1, The rejection reason field is A method for forcibly terminating a portable terminal, characterized in that a value defined to forcibly terminate the portable terminal is described. The method according to claim 1, And the location information is a location area identification (LAI). The method according to claim 3, The LAI includes a mobile country code (MCC), a mobile network code (MCC), and a location area code (LAC). The method according to claim 4, And the LAI sets a value so that the LAI can be distinguished from an adjacent cell. The method according to claim 5, And the LAI sets a LAC value of the LAI so that the LAI can be distinguished from an adjacent cell. In the portable terminal forced termination system, A network for transmitting a location update reject message including a specific rejection reason field when receiving a location update request message from a mobile terminal entering a specific location; And And a portable terminal forcibly terminating itself according to the rejection reason field. The method according to claim 7, The network is And a value defined for forcibly terminating the portable terminal in the rejection reason field. The method according to claim 7, The network is A mobile terminal forced termination system comprising at least one of a GSM network and a UMTS network. The method according to claim 7, The location information is an LAI, and the LAI includes a mobile country code (MCC), a mobile network code (MCC), and a location area code (LAC). The method according to claim 10, And the LAI sets a value so that the LAI can be distinguished from an adjacent cell.

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