KR20010105712A - The method for controling call in mobile communication system - Google Patents

Abstract

The invention relates to methods for preparing a fiber, thread or yarn including a polymer blend of a predominantly atactic flexible polyolefin polymer having a high weight average molecular weight of at least about 100,000 and a heat of fusion of about 15 to 60 J/g with an isotactic polypropylene polymer, and forming the polymer blend into a fiber, thread or yarn, wherein the flexible polymer is present in an amount sufficient to increase the elasticity of the fiber, thread or yarn to inhibit substantial breakage thereof, for use in non-woven products. The invention also relates to the fiber, thread or yarn including the polymers, as well as non-woven products prepared therefrom. Moreover, the invention relates to composite articles including the fiber, thread or yarn in combination with adhesive compositions, and polymer blends used for such adhesive compositions.

Description

Call handling method of mobile communication system {THE METHOD FOR CONTROLING CALL IN MOBILE COMMUNICATION SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system, and in particular, a temporary location directory number for a called subscriber which does not exist in a subscriber location register (hereinafter referred to as VLR) according to the provisional standard IS-41C. Number) (hereinafter referred to as TLDN) relates to a call processing method of a mobile communication system.

In general, a procedure for allocating a TLDN for a called subscriber in a mobile communication system is performed as follows.

As shown in Fig. 1, when the mobile station A forwards a call from another mobile subscriber A to another mobile subscriber B (S1), at an exchange in which an originating subscriber's location is registered to obtain routing information for the called party. The called party requests location information to the registered Home Location Register (HLR) (LocationRequest) (S2).

In the HLR requested for the location information, the calling subscriber confirms whether the location registered exchange and the destination subscriber are the same as the location registered exchange, and the exchange ID and the destination exchange ID of the calling exchange in the location information signal. Compare

If the exchange IDs of two incoming and outgoing subscribers are different in the HLR, it is determined that the subscribers are registered in different exchanges, and the HLR requests a routing request to the exchange in which the called subscribers are registered (S3). . The VLR that receives the routing request allocates a TLDN for the corresponding subscriber (S4).

In the process of allocating the TLDN, the called subscriber confirms the location registration of the VLR using the MobileIdentificationNumber (MIN) in the routing request map message. In this case, as shown in FIG. 2, if the information of the called party is not present in the VLR, the return result of the corresponding operation (RoutingRequest) is transmitted as an error without assigning a TLDN to the called party (S14), and the home location register is also treated as an error. (S15) The call connection is released.

In this case, it is inconvenient for the mobile communication originating subscriber not to know the reason why the call connection is released, and because it is inconvenient because of the call processing method of the mobile communication exchange, it must be a fundamental and fatal flaw.

The present invention is to solve the above-mentioned problems, even if there is no location information of the destination subscriber in the VLR due to unspecified reasons by performing a call setup by assigning a TLDN, the call processing method of the mobile communication system to perform a normal call processing The purpose is to provide.

1 is a call processing flow diagram when there is no location information of a called subscriber in a VRL in a general mobile communication system.

FIG. 2 is a flowchart illustrating a call processing in a case where there is no location information of a called subscriber in a VRL in a general mobile communication system. FIG.

3 is a call processing flowchart illustrating a method for allocating a TLDN to a called subscriber when there is no location information of a called subscriber in a VRL in a mobile communication system according to the present invention.

4 is a flowchart illustrating a flow of releasing a call connection of a called subscriber when there is no location information of a called subscriber in a VRL in a mobile communication system according to the present invention.

5 is a flowchart illustrating a flow of allocating a TLDN to a called subscriber when there is no location information of a called subscriber in a VRL in a mobile communication system according to the present invention.

A feature of the present invention for achieving the above object is to perform a setup by allocating a TLDN even if there is no location information of the called party in the VLR due to unspecified reasons, and only when there is no location information of the called party in both the VLR and the HLR. A call processing method of a mobile communication system for releasing a call connection is provided.

Hereinafter, with reference to the accompanying drawings will be described in detail the TLDN allocation method for the called party of the present invention.

4 is a flowchart illustrating a method for allocating a TLDN of a mobile communication system according to the present invention, in which a caller's location is registered to obtain routing information for a called party when a caller proceeds to a call (S30). The called exchange requests a Location Request (S31) to the HLR in which the called party is registered. At this time, this location request is used by the originating exchange to obtain call processing information from the HLR, the call is received by the originating exchange, and the called party is identified by the dialed terminal address digit.

Subsequently, the corresponding HLR requested for the location request checks whether the location of the originating subscriber is the same as the exchange in which the destination of the called subscriber is registered. That is, the exchange ID of the originating exchange in the location request signal is compared with the exchange ID of the called exchange.

If the exchange IDs of the two incoming and outgoing subscribers are different from each other in the HLR, it is determined that the subscribers are registered with different exchanges. In this case, the HLR requests the Routing Request (S32) to the exchange where the called party is registered. The VLR that receives the request for routing, that is, the VLR of the destination exchange allocates a TLDN for the corresponding subscriber (S33).

Here, in the process of allocating the TLDN, the incoming subscriber checks the location registration of the VLR using the MobileIdentificationNumber (MIN) in the routing request map message. If the incoming subscriber's information is not present in the VLR, the operation is a routing request. The return result of is sent as an error without allocating the TLDN for the called party, and the call was previously released.However, the called party confirms whether the VLR is registered by the MIN in the routing request map message.

Subsequently, when the HLR receiving the location information of the called subscriber transmits the location request (S34) to the registered calling exchange, the caller performs normal call processing while the call setup is performed from the calling exchange to the called exchange.

However, if the called party's information is not present in the VLR, the caller requests the location information of the called party to the HLR to perform normal call processing. If the destination information of the called subscriber is not obtained, the call connection is released.

The control flow for the call processing method of the mobile communication system will be described in more detail with a flowchart.

5 is a flowchart illustrating a control flow for a call processing method of a mobile communication system according to the present invention.

In a first step S60, the mobile communication originating subscriber makes a call to the called party, and the originating processor of the mobile communication exchange proceeds.

As a second step S62, the originating exchange transmits a location request signal to the home location register (HLR) in which the called party is registered.

In a third step S64, it is determined whether the source exchange ID and the destination exchange ID are the same in the HLR which has received the location request signal. In this case, the method of determining whether the identity is the same whether the ID of the originating exchange and the destination exchange in the location request signal is the same. If it is the same, it is determined to be a subscriber of its own country.

In the fourth step S66, if the exchange ID is the same, it is determined as the subscriber of the local station and the normal call processing is performed.

As a fifth step (S68), if the exchange ID is not the same, since it is a subscriber registered in different exchanges, the HLR transmits a routing request signal to the VLR of the destination exchange. At this time, the routing request is used to request location information to route a call to a communication terminal.

As a sixth step (S70), if there is no location information of the called subscriber in the destination exchange

Assign TLDN to the home location register. In this case, the TLDN, that is, the temporary location directory number is a routing number for performing call setup as a called subscriber.

As a seventh step S72, the setup is performed.

In an eighth step S74, it is determined whether or not the location information of the called subscriber exists in the VLR, and if there is, the normal call processing is performed.

In the ninth step S76, if there is no location information of the called subscriber in the VLR, it is determined whether the location information of the called subscriber exists in the HLR, and if so, normal call processing is performed.

In a tenth step S78, if the location information of the called subscriber does not exist in the VLR, the call connection is released.

According to a preferred embodiment of the present invention as described above, the call connection can be increased by releasing the call connection only when the location information of the called subscriber is not located in both the VLR and the HLR of the mobile communication exchange, There is an advantage that can resolve the inconvenience of the subscriber.

Claims (2)

A first step of transmitting a location request signal from an exchange in which the calling subscriber is registered to a home location register in which the called subscriber is registered; A second step of determining whether or not the originating exchange ID and the destination exchange ID are the same by the home location register receiving the location request signal; A third step of performing normal call processing when the IDs are the same, and transmitting a routing request signal from the home location register to the destination exchange when the IDs are different from each other; If there is no location information of the called subscriber in the destination exchange, a fourth step of first assigning a temporary location directory number to proceed with call setup; A fifth step of determining whether location information of the called subscriber exists in the visited location register; A sixth step of determining whether or not there is location information of the called party in the home location register, if there is location information of the called party in the visited location register; And a seventh step of performing normal call processing if there is location information of the called subscriber in the home location register, and releasing the call connection if not. The method of claim 1, The method of determining whether the ID is the same is the call processing method of the mobile communication system, characterized in that the ID of the originating exchange in the location request signal and the ID of the destination exchange is the same.