KR20000015564A - Apparatus for transmitting call cancel reason in mobile telecommunication system - Google Patents

Abstract

PURPOSE: An apparatus for transferring call cancel reason in a mobile telecommunication system is provided to collect data of call cancel reason such as incomplete telecommunication and transfer the call cancel reason data to a corresponding mobile telecommunication exchanger. CONSTITUTION: The apparatus comprises a first and a second mobile telecommunication exchanger(6, 14). A first and a second base station(2, 20) is connected with the first and second mobile telecommunication exchanger by a first and a second base station controller(4, 18). A first and a second mobile call processing part(8, 16) of the mobile telecommunication exchanger is connected to a first and a second relay call processing part(10, 14) and performs an exchange function for connecting an outgoing call to an incoming call. When a call cancel reason is generated within a zone of the first mobile telecommunication exchanger, the first relay call processing part transfers the call cancel reason to the second mobile communication exchanger through the second relay call processing part.

Description

Call Release Reason Transmitter of Mobile Communication Switching System

The present invention relates to an apparatus for transmitting call release reason of a mobile communication switching system, and more particularly, to an apparatus for transmitting a call release reason resulting from call release to a counterpart mobile communication exchange in a mobile communication switching system.

The mobile communication switching system according to the prior art uses a protocol standardized based on a wired communication environment. At this time, the standardized protocol is an Integrated Services Digital Network (ISDN) User Part (ISP) protocol.

In case of using the general information network user part protocol standardized based on the wired communication environment, the call release reason generated in the mobile communication network is not transmitted to the counterpart mobile communication exchange. Therefore, there is considerable difficulty in collecting statistics, tracking incomplete causes, and improving system performance. For example, if a call release reason such as paging not responding, radio channel allocation failure, and disconnection of a radio channel during a call occurs, such information is not transmitted to the other mobile communication exchange. You will not know why.

Therefore, in the prior art, there are many drawbacks in that it is difficult to track the cause of call release reasons.

The present invention has been made in order to improve the above-described drawbacks, by integrating the call release reason of the wired network and the call release reason of the wireless network to be able to collect the cause of the call impossible in detail. Accordingly, an object of the present invention is to provide a call release reason transmission device of a mobile communication switching system that enables detailed statistics collection and breaks down the cause of call incompleteness, thereby transferring the call release reason to a counterpart mobile communication exchange.

In order to achieve the above object, the present invention provides a mobile communication switching system in which a plurality of mobile communication exchangers are connected through a switching network, wherein at least one of the plurality of mobile communication exchanges connects an outgoing call to an incoming call. A mobile call processor to make; And a relay call processing unit connected to the mobile call processing unit and transferring the call release reason to the counterpart mobile communication switch when a call release reason occurs.

1 is a block diagram showing an embodiment of a call release reason transmission apparatus of a mobile communication switching system according to the present invention.

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

2, 20: first and second base station 4, 18: first and second base station controller

6, 12: first and second mobile communication switch

8, 16: first and second mobile call processing unit

10, 14: first and second relay call processing unit

Hereinafter, the embodiment of the present invention as described in detail as follows.

1 is a block diagram showing an embodiment of a call release reason transmission apparatus of a mobile communication switching system according to the present invention, the first, second base station (2, 20), the first, second base station controller (4, 18) And first and second mobile communication exchanges 6 and 12.

In the same figure, each of the first and second base stations 2 and 20 wirelessly connects with a wireless mobile call in its respective cell area. That is, each wireless mobile call is wirelessly connected to each base station managing each cell area to which it belongs. Accordingly, a plurality of wireless mobile calls can be connected to a mobile communication switching system.

Next, the first and second base station controllers 4 and 18 connect the respective first and second base stations 2 and 20 to the respective first and second mobile communication exchanges 6 and 12. In this case, a plurality of base stations may be connected to one base station controller. In addition, a plurality of base station controllers may be connected to one mobile switching center.

In addition, each of the first and second relay call processing units 10 and 14 in each of the first and second mobile communication exchanges 6 and 12 matches calls with large stations, respectively.

Each of the first and second mobile call processing units 8 and 16 respectively performs an exchange function for connecting the originating call to the incoming call. At this time, each of the first and second mobile call processing units 8 and 16 is located between each of the first and second relay call processing units 10 and 14 and each of the first and second base station controllers 4 and 18. Are installed on each.

On the other hand, the first relay call processing unit 10, if the call release occurs on the radio, wireless equipment, and call processing in the area of the first mobile communication switch 6, the second mobile call is the reason for the call release. To the communication exchange 12. At this time, the first relay call processing unit 10 transmits the reason for call release to the second mobile communication exchange 12 which is a counterpart exchange through the second relay call processing unit 14.

Next, the second mobile communication exchange 12 reads the cause of the impossible call by reason of the call release received from the first mobile communication exchange 6. After that, the second mobile communication switch 12 can make various operations according to the call release, such as counting the types of the impossible calls.

On the other hand, the second relay call processing unit 14, if the call release occurs in the area of the second mobile communication switch 12 by the radio, radio equipment, and call processing phase, the reason for the call release is the first move as the counterpart exchange. To the communication exchange (6). After that, the process of statistic of the non-call type is similar to that in the above case and is omitted.

Reasons for call release by the radio phase include a radio matching part message failure, radio matching failure, radio quality and strength degradation, and handoff success.

In addition, the reason for the call release by the radio equipment is equipment failure, no radio resource available, no relay and base station control period available relay line, common control channel (CCCH) overload, radio equipment processor overload, no base station , And no terminal.

And the reason for the call release by the mobile call processing, paging non-response, search non-response, radio channel allocation failure, handoff failure, Home Location Register (HLR) non-response, incoming call transfer, voice mail (Voice Mail) System (VMS) transitions, supplementary service failures, switch and base station control period messages or parameter errors in messages, service options unacceptable, and busy call disconnection.

As described above, the present invention integrates the call release reason of the wired network and the call release reason of the wireless network, so that the cause of call inability can be collected in detail. Therefore, the statistics collection is detailed and the cause of call incompleteness is subdivided to convey the reason for call release to the counterpart mobile communication exchange. Therefore, there is an effect to efficiently operate the mobile communication switching system.

Claims (2)

In a mobile switching system, in which a plurality of mobile switching centers are connected through a switching network: At least one of the plurality of mobile communication exchanges, the mobile communication exchange, A mobile call processor for connecting an originating call with an incoming call; And a relay call processing unit connected to the mobile call processing unit and transferring a call release reason to a counterpart mobile communication exchange when a call release reason occurs. The method of claim 1, And the call release reason is due to a radio phase, a radio equipment phase, and a mobile call processing phase.