KR19990031952A - How to Prevent Switch Occupancy on Wireless Channel Allocation Failure Calls - Google Patents

Abstract

The present invention relates to a method for preventing a switch occupancy of a radio channel allocation failure call that allows a switch to occupy a radio channel only when a switch connection point is occupied by a radio channel during a mobile incoming call processing. When a response to the call is received, the calling mobile call controller receives a subscriber response by connecting to the switch and allocates a wireless channel. The wireless channel is not allocated even though the wireless channel is allocated. There was a drawback of wasting resources of the switch, but in the present invention, in case the terminating channel allocation fails, the present invention receives a report on the success of the terminating channel allocation, and then connects the switches of the terminating side exchange, thereby allocating the switch of the terminating side exchange. By improving the use efficiency of the switch in the Kilsu that will.

Description

How to Prevent Switch Occupancy on Wireless Channel Allocation Failure Calls

The present invention relates to a method for preventing a switch occupancy of a radio channel allocation failure call. In particular, the present invention relates to a method for preventing a switch occupancy of a radio channel allocation failure call that allows a switch to occupy only when the switch connection point is occupied by a wireless channel during a mobile call processing. It is about.

In the prior art, the call processing procedure consists of a procedure of receiving a subscriber response by connecting to a switch in the outgoing mobile call control unit when receiving a response to paging, and allocating a radio channel by occupying a switch. There was a drawback of wasting resources on the switch because it was occupied by the radio channel allocation failure call because it was not allocated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks of the prior art, and the called party responds by improving the existing procedure of occupying a switch inside the called party's switch prior to the called party's radio channel assignment. Switching of a radio channel assignment failure call that prevents the occupying of an unused switch due to a channel allocation failure by connecting the switch of the actual destination exchange when the channel assignment is successful after receiving the radio channel and receiving a response. The purpose is to provide a method of preventing occupation.

In order to achieve the above object, the present invention provides a wireless access to a personal communication subscriber of the corresponding area, each of the first, ..., N-th base station, and a plurality of base stations requesting authentication for use of the terminal; A base station controller for controlling each base station, receiving a signal from each base station, an originating mobile call control unit controlling a signal coming through each base station and each base station controller, and an originating call received from the originating mobile call controller A mobile communication system comprising a visited subscriber management unit that determines whether a signal is valid and an incoming mobile call control unit that connects a calling party and a calling party by a calling mobile call control unit. Request outgoing subscriber information to visiting subscriber management to send outgoing subscriber information Obtaining, the visited subscriber management unit requests paging, and the called party transmits a paging response to the called mobile call controller; the called mobile call controller sends a mobile call setup message to the called subscriber terminal and sends an ACK message to the mobile call setup message. Receiving step, the terminating mobile call control unit requests radio resource allocation between the base station and the destination terminal through the base station controller, the base station receiving the radio resource allocation request is determined to determine whether the radio resources of the called subscriber can be allocated If it is determined in the step, determination step that the radio resources of the called subscriber can not be allocated, transmitting a message indicating that the radio resources could not be allocated, judged in the determination step to receive the radio resources of the called subscriber If you can, the call forward Allocating a radio resource of the own terminal and receiving a message indicating that the radio resource has been allocated from the called subscriber terminal, and the called mobile call controller is busy with the visited subscriber management unit because the terminal of the called subscriber is using the radio resource. Registering, the visited subscriber management unit notifies the calling mobile call controller that the resource of the called subscriber's terminal is occupied and registered as busy; Provided is a switch occupancy prevention method of a radio channel allocation failure call, comprising the step of switching the call path of the mobile call controller.

1 is a block diagram of a personal communication switching system for explaining a method for preventing switch occupancy of a radio channel allocation failure call according to the present invention;

2 is a flowchart illustrating a process of preventing switch occupancy of a radio channel allocation failure call in a personal communication exchange according to a preferred embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

10-1, ..., 10-n, ...: 1st, ..., nth base station controller

10, ...: base station controller 20: personal communication exchange

30: home location register 110: base station controller matching unit

120: outgoing mobile call control unit 130: incoming mobile call control unit

140: visit sign up management 150: number translation department

160: home position register matching unit

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings.

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

The configuration of the present invention is that each of the first, ..., N-th base station (10-1, ..., 10) wirelessly connects to a personal communication subscriber of the corresponding area and requests authentication for use of the terminal. -n, ..., and a plurality of base stations, and control each base station (10-1, ..., 10-n, ...), each base station (10-1, ...) Base station controller 10, ... that receives signals at., 10-n, ...), a plurality of base stations 10-1, ..., 10-n, ..., and a plurality of base stations An outgoing mobile call control unit 120 for controlling a signal entered through the controller 10, ..., a visited subscriber management unit 140 for determining whether an outgoing call received from the outgoing mobile call control unit 120 is a proper signal, and an outgoing mobile call control unit; It comprises a personal mobile communication switch 20 made up of the destination mobile call control unit 230 that connects the calling party and the calling party called subscriber at 120.

First, referring to FIG. 1, a block diagram of a personal mobile communication system for explaining a method of preventing a switch occupancy of a radio channel allocation failure call is described. ., 10-n, ...) connects wirelessly with the personal communication subscriber of the area and requests authentication for use of the terminal.

The base station controller 10 connects with a plurality of base stations, controls each base station 10-1, ..., 10-n, and at each base station 10-1, ..., 10-n Receiving a signal to control the process of processing the received signal, one base station controller 10 controls a plurality of base stations (10-1, ..., 10-n).

The personal communication exchange 20 is connected to a plurality of base station controllers 10, ..., and is connected to a plurality of base station controllers 10 through a plurality of base stations 10-1, ..., 10-n, ... , ...) in case of other exchange and own country call, connects with own call, connects the call by switching operation, and performs the process of charging.

The base station controller matching unit 110 converts a signal coming from the base station controller 10 into a signal usable by the personal communication exchange 20, and, conversely, is output from the personal communication exchange 20 to the base station controller 10. The signal is converted into a signal that can be output by wire with the counterpart base station 10-1, ..., 10-n in advance and is received and received by the counterpart base station 10-1, ..., 10-n. Switch to use.

Personal call control service call control (PCC) in the personal communication switch 20 may be divided into an outgoing subscriber mobile call unit 120 and a called subscriber mobile call unit 130.

When the call request is input from the calling subscriber (both wireless and wired), the calling mobile call controller 120 transmits the called number to the number translation unit 150 and requests a number translation.

In addition, the incoming mobile call control unit 130 receives the number translation result and requests the location information of the called subscriber to the home location register 30 through the home location register matching unit 160.

In addition, when the destination mobile call control unit 130 receives the destination location information from the home location register 30, the destination mobile call control unit 130 transmits a mobile call request to the visited subscriber call management unit (LCC) 140.

When the destination mobile call controller 130 transmits a paging request to the base station controller 10, and the base station controller 10 transmits a signal back to the base station 10-1, ..., 10-n, The called terminal again transmits a paging response to the base station 10-1,..., 10-n, and the base station controller 10 and the called mobile call controller 130.

In addition, the incoming mobile call controller 130 receiving the paging response sends the incoming mobile subscriber occupation notification to the calling mobile call controller 120.

Then, the outgoing mobile call controller 120 receiving the incoming mobile subscriber occupation notification sends a switch connection notification to the incoming mobile call controller 130 after the switch connection.

The incoming mobile call control unit 130 initiates incoming call setup and connects to a call.

The visited subscriber management unit 140 is located inside the personal communication switch 20 and serves as a small database that receives information of a plurality of subscribers and temporarily stores it.

For example, if a temporarily registered subscriber has moved to another location, this subscriber information is destroyed, and if a new subscriber is received, the subscriber is received from the home location register 30 and stored.

The number translation unit 150 translates the number, translates the number, and transmits the result to the calling mobile call controller 120 and the called mobile call controller 130, and transmits the result to the visited subscriber management unit 140 or the home location register 30 in the corresponding mobile call controller. Search the information according to the translation of the subscriber's number through the connection between the called party and the calling party according to the search results.

The home location register matching unit 160 is responsible for registration between the home location register 30 and the personal communication switch 20, and communicates with the home location register 30 in a common line signal manner, and the home location register 30. It serves to convert the internal signal of the personal communication switch 20 to the common line signal system so that the signal is transmitted through.

Then, the home location register matching unit 160 serves to notify the home location register 30 access error when the incoming location information request is received from the incoming mobile call control unit 130.

The home location register 30 also serves as a large database containing subscriber information such as code and number of subscribers and other service information, for example, additional service information.

The home location register 30 communicates with a plurality of personal communication exchanges 20 and transmits and receives subscribers' information to each visited subscriber management unit 140 within each personal communication exchange 20.

Referring to Fig. 2, a flow chart illustrating a process of preventing switch occupancy of a radio channel allocation failure call in the personal communication switch 20 is described with reference to the base station 10-1, ..., 10-n, .. .), If the call request to the originating mobile call control unit 120 through the base station controller (10, ...) and the base station controller matching unit 110, the originating mobile call control unit 120 passes through the incoming mobile call control unit 130 The management unit 140 requests outgoing subscriber information to obtain outgoing subscriber information (step 202).

The visited subscriber management unit 140 requests paging to the incoming mobile call control unit 130 to find the location of the called subscriber requested by the calling subscriber (step 204).

In addition, the called mobile call controller 130 transmits the called subscriber PID report including the terminal identity number of the called subscriber to the calling mobile call controller 120 to the calling mobile call controller 120.

The called mobile call controller 130 transmits a mobile call setup message to the called subscriber terminal (step 208).

The called terminal sets up the terminal and transmits an arc (ACK) message for the mobile call setup message to the called mobile call controller 130 (step 210).

The terminating mobile call control unit 130 requests radio resource allocation between the base station 10-1, ..., 10-n, ... and the called terminal through the base station controller 10 (...). 212).

The base station 10-1, ..., 10-n, ... that has received the radio resource allocation request determines whether the radio resource of the called party can be allocated (step 214).

For example, when the called subscriber is busy, that is, in a busy state, the radio resources cannot be allocated, and even when the receiving power is insufficient, the radio resources cannot be allocated.

If it is determined in step 214 that the radio resource of the called subscriber cannot be allocated, a message informing that the radio resource cannot be allocated is transmitted and terminated (step 216).

As described above, when the radio resource cannot be allocated so as not to occupy the switch of the called party, it is terminated before the switch resource is allocated.

If it is determined in step 214 that an idle state capable of receiving radio resources of the called subscriber is allocated, the radio resources of the called subscriber station are allocated (step 218).

The called subscriber station which has been allocated the radio resource notifies the called mobile call controller 130 that the radio resource has been allocated (step 220).

The called mobile call controller registers as busy in the visited subscriber management unit 140 because the terminal of the called subscriber is using radio resources (step 222).

The visited subscriber management unit 140 notifies the originating mobile call controller 120 that it has occupied the resources of the terminal of the called subscriber and registered as busy (step 224).

The outgoing mobile call control unit 120 requests a switch connection to the incoming mobile call control unit 130 to switch between the call path of the incoming mobile call control unit 130 and the call path of the outgoing mobile call control unit 120 to call between the calling subscriber and the called party. (Step 226).

When the switching connection is made, both subscribers are alerted and a call is made between the calling party and the called party (step 228).

As described above, the present invention receives a report on the successful reception of the destination channel allocation in case the destination channel allocation fails, and then connects the switches of the destination side exchange, so that the utilization efficiency of the switch in the switch assignment of the destination side exchange. Can be increased.

The principles of the invention have been described above in connection with specific devices, which are described by way of example only, and are not intended to limit the scope of the invention as described in the appended claims.

Claims (1)

The first, ..., N-th base stations 10-1, ..., 10-n, ... which connect wirelessly with the personal communication subscribers of the corresponding area and request authentication of the use of the terminal. ) And a plurality of the base stations 10-1, ..., 10-n, ..., and connect each of the base stations 10-1, ..., 10-n, ... And a base station controller (10, ...) receiving a signal from each of the base stations (10-1, ..., 10-n, ...), and each of the base stations (10-1, ...). .., 10-n, ...) and the originating mobile call control unit 120 for controlling the incoming signal through each base station controller 10, ..., and the originating call received by the originating mobile call control unit 120 In the mobile communication system comprising a visited subscriber management unit 140 for determining whether the signal is a reasonable signal, and the incoming mobile call control unit 130 for connecting the calling subscriber and the subscriber called by the calling subscriber in the outgoing mobile call control unit 120, Requesting a call from the originating subscriber to the originating mobile call controller (120); The visited subscriber management unit 140 requests paging to a called subscriber and the called subscriber sends a paging response to the called mobile call controller 130; The called mobile call control unit (130) transmitting a mobile call setup message to a corresponding called subscriber terminal and receiving an ACK message for the mobile call setup message; The terminating mobile call control unit (130) requesting radio resource allocation between the corresponding base station (10-1, ..., 10-n, ...) and the called terminal; Determining, by the base station 10-1, ..., 10-n, ..., whether to allocate radio resources of the called subscriber; If it is determined in the determining step that the called subscriber is unable to allocate radio resources, transmitting a message indicating that radio resources cannot be allocated; If it is determined in the determining step that the called subscriber can be allocated radio resources, allocating a radio resource of the called subscriber station and receiving a message indicating that the radio resources have been allocated from the called subscriber terminal; The incoming mobile call controller 130 registering with the visited subscriber manager 140 as a busy; The visited subscriber management unit 140 informing the outgoing mobile call controller 120 that the terminal of the called subscriber is registered as busy; The outgoing mobile call control unit 120 includes a switch connection request to the incoming mobile call control unit 130 to switch between the call path of the incoming mobile call control unit 130 and the call path of the outgoing mobile call control unit 120. How to prevent switch occupancy of a channel allocation failure call.