KR100260093B1 - Method for reporting handoff in a personal communication exchange system - Google Patents

Abstract

PURPOSE: A method for reporting handoff in a personal communication exchange system is provided to report a handoff to an anchor exchange when a handoff between cells is made in the same personal communication exchange system after a handoff between exchanges by a certain subscriber. CONSTITUTION: A method for reporting handoff in a personal communication exchange system includes the following steps. When a handoff subscriber corresponding to a service exchange area makes a handoff between cells in the same base station controller, a corresponding base station controller reports the result of the handoff to the serving exchange in the first step. A corresponding base station controller interface unit in the serving exchange receives the result of the success of the handoff and transmits the same to a handoff disposing unit of the serving exchange in the second step. The handoff disposing unit transmits handoff report information containing the information required for transmission between exchanges to a handoff trunk management unit of the anchor exchange via a local exchange interface unit in the third step.

Description

Handoff Notification Method in the Same Private Mobile Switching System

The present invention relates to a handoff notification method in the same personal mobile communication switch, and in particular, any subscriber in an electronic switching center employing a mobile communication protocol such as IS-651, IS-634, IS-41C, etc. The present invention relates to a method for reporting a handoff to an anchor exchange when a handoff is performed between cells in the same personal communication exchange period after turning off.

In the prior art, only the serving personal communication exchange controlling the corresponding handoff subscriber knows that the handoff is performed when the cell is handed off during the serving personal communication exchange period after the exchange period handoff at the personal communication exchange. The fact that the inter-cell handoff is not reported to the anchor exchange that initiated the handoff has a drawback that information management and statistical data of the handoff are not managed.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and when a mobile subscriber moves to another cell within one base station controller in a serving exchange after completing a switching period handoff, When the information on the handoff in the processing base station controller is notified to the serving exchange, the serving exchange aims to provide a method for transmitting information on the handoff occurrence to the anchor exchange.

In order to achieve the above object, the present invention provides a mobile subscriber terminal comprising: an anchor exchange, which is a corresponding exchange set up by a subscriber in which subscriber information has been registered, and a serving exchange which is performing handoff service in the area controlled by the anchor exchange. In a communication system, when a handoff subscriber in a serving exchange area is handed off between cells within a same base station controller, the base station controller notifies the serving exchange of a handoff result to the serving exchange; The base station controller matching unit in the serving exchange receives the result of the handoff success and transmits the result to the handoff processing unit of the anchor exchange, and the handoff processing unit receives the result of the handoff success and handoff the information necessary for transmission between the exchanges. Report details of Anchor Exchanger Sending the handoff report to the doff trunk line manager, wherein the handoff trunk line manager finds the address of the corresponding handoff processor handling the handoff subscriber to process the internal handoff report message at the handoff processor in the anchor exchange. And a handoff notification method at the same personal mobile communication exchange.

1 is a block diagram of a mobile communication system suitable for explaining a method for handoff notification in the same personal mobile communication switch in accordance with the present invention;

2 is a block diagram of a mobile communication switch suitable for explaining a method for handoff notification in the same personal mobile communication switch according to the present invention;

3 is a flow chart illustrating the step of handoff notification at the same private mobile communication exchange in accordance with the present invention.

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

102, 104: first and second base station 112, 114: first and second base station controller

122,124: first and second personal communication exchange 130: home location subscriber register

202, 222: first and second base station controller matching unit

204,224: first and second fixed subscriber processing units

206,226: first and second handoff processing unit

208,228: First and second handoff relay line management unit

210,230: first and second visited subscriber location registers

212,232: first and second exchange matching unit 214,234: first and second mobile call processing 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, it will be described in detail a preferred embodiment of the present invention.

Referring to the configuration according to the present invention, a plurality of personal communication exchangers (122, ..., 124, ...) that provides the exchange function between the personal communication subscribers, and also provides the exchange function to mobile and fixed subscribers; Connection between the plurality of first base stations (102, ...) and the first personal communication switch (122) by wire, and the first mobile communication switch (122) connected by an internal switch or an NO. A plurality of first base station controllers 112, ..., a plurality of second base stations 104, ..., and a second personal communication exchange that perform functions such as matching, inter-cell handoff processing, call control, and the like. And a second base station controller 114 and a first base station controller 112 that perform the same operation as the above-described first base station controller, and transmit and receive wireless signals, system synchronization, and wireless channel. Coding and decoding, signal strength and quality measurements, baseband signal A plurality of first base stations 102, ..., and a second base station controller 114, which have a call processing, diversity, radio resource management and self-maintenance function and which are wirelessly matched with a plurality of personal communication terminals. And a plurality of second base stations 104, ... serving the same role as the plurality of first base stations 102, ..., subscriber parameters and location information for all registered terminals. It comprises a home location subscriber register 130, which is a database management system that manages, and the configuration in the personal communication exchange of one of the plurality of personal mobile communication exchanges, the configuration in the first personal communication exchange 122 A first base station controller register that matches a plurality of first base station controllers (112, ...) and a first visited subscriber location register (210), which is a database that stores all information about terminals existing in a managed area. The unit 202, a first mobile call processing unit 214 which manages the mobile subscribers to smoothly move while maintaining the call without disconnection when moving to another system, and a first fixed subscriber processing unit that is responsible for call processing of the fixed subscribers ( 204, a first handoff processing unit 206 for inquiring and storing information of the subscriber who has handed off the handoff at each personal communication exchange and controlling the call of the subscriber who has handed off the corresponding handoff; A first handoff relay line management unit 208 which operates in conjunction with the off processing unit 206 and maintains a relay line allocated for handoff for smooth handoff processing with other exchanges when a handoff occurs during an exchange period; It consists of a first exchange matcher 212 which, when calling or handing off from one exchange to another exchange, protocol matching between both exchanges. In addition, since the structure in the second personal communication exchange 124 is similar to that of the first personal communication exchange 122, description thereof will be omitted.

Referring to Fig. 1, a block diagram of a mobile communication system suitable for explaining a call waiting processing method will be described. A plurality of personal communication exchanges 122, ..., 124, ... It provides an exchange function and provides an exchange function not only to mobile subscribers but also to fixed subscribers, and has an information exchange function between the home location subscriber register 130 and the visited subscriber location registers 210,..., 230,...

In addition, the electronic switch having an interface function with a plurality of base station controllers (112, ..., 114, ...) for transmitting and receiving signals and voice data with the terminal.

One first base station controller 112 is matched with a plurality of first base stations 102, ..., base station wireless signal transmission and reception, system synchronization, radio channel encoding and decoding, signal strength and quality measurement, baseband A device having signal processing, diversity, radio resource management and self-maintenance functions, and performing functions such as inter-cell handoff processing and call control, the switch being connected to a corresponding first personal communication exchange 122 to which a base station controller is connected. Connected to an internal interface or NO.7, one first base station controller 112 controls a plurality of base stations 102, ....

In addition, the first base station controller 112 controls each base station 102, ... to wirelessly receive a signal from each base station 102, ..., and controls the signal processing process to control the corresponding first base station The controller 112 connects with the corresponding personal communication exchange 122.

Since the second base station controller 114 is similar to the operation of the first base station controller 112 described above, a description thereof will be omitted.

A plurality of first base stations (102, ...) is connected to the first base station controller 112 to transmit and receive radio signals, system synchronization, radio channel encoding and decoding, signal strength and quality measurement, baseband signal processing, diversity It has a radio resource management and self-maintenance function, and wirelessly matches with multiple personal communication terminals.

Since the plurality of second base stations 104, ... is similar to the operation of the first base station 102, ..., the description thereof will be omitted.

The home location subscriber register 130 stores subscriber parameters and location information for all terminals registered in the plurality of personal communication exchanges 122, ..., 124, ... belonging to the home location subscriber register 130. Means a database management system.

Referring to FIG. 2, a block diagram of a mobile communication switch suitable for describing a call waiting processing method will be described. Each of the base station controller matching units 202 and 222 includes a plurality of base station controllers 112, As a block that matches ..., 114, ..., the base station controller matching units 202, 222 in the personal communication exchanges 122, 124 are a plurality of base station controllers 112, ..., 114, ... .) And converts the signal from the personal communication exchange (122, 124) to a signal that can be used and at the same time the signal output from the corresponding personal communication exchange to each base station controller (112, ..., 114, ...) The base station controllers 112, ..., 114, ... transmit using a recognizable internal interface method or common line signal method to facilitate the conversion of signals between stations.

Each fixed subscriber matching unit 204, 224 is responsible for call processing of fixed subscribers, and serves to connect calls between fixed subscribers and between fixed subscribers and mobile subscribers in respective personal communication exchanges 122 and 124. do.

If it is determined by each fixed subscriber matching unit 204, 224 that it is determined to be a call between the mobile subscriber and the fixed subscriber, the fixed subscriber is the incoming / outgoing process in each fixed subscriber processing unit (204, 224), each mobile call processing unit ( In 214 and 234, the mobile subscriber makes a call / incoming process so that the call is connected.

Therefore, a call between a fixed subscriber and a mobile subscriber is possible at each mobile switching center 122,124. Each mobile call processing unit (214, 234) is responsible for mobile call processing and other call progress related processing, and is connected to each visited subscriber management unit (210, 230) to receive or send the information of the mobile subscriber to the mobile subscriber, Connect a call between a mobile subscriber and a fixed subscriber.

Each handoff processing unit (206, 226) inquires and stores information of the handoffed subscriber in relation to the handoff in each of the personal communication exchangers (122, 124) so that the call of the handoffed subscriber is the target exchange or serving. If there is an exchange, the call connection and billing are connected and the billing is calculated.

In addition, each mobile call processor 214, 234 allows mobile subscribers to move smoothly, while keeping the call uninterrupted when handing off to a system of another personal communication exchange.

Each visited subscriber location register (210, 230) is a database that is located inside the corresponding mobile communication exchange (122, 124) and receives the information of subscribers managed by the corresponding personal communication exchange (122, 124) and stores it for a while. . As an example, if a subscriber is temporarily transferred to a registered subscriber, the subscriber information is destroyed, and if a new subscriber comes in, the subscriber information is received from the home location subscriber register 130 and stored there. A database that receives and stores subscriber information.

Each handoff relay line management unit (208, 228) maintains a relay line allocated for handoff for smooth handoff with other exchanges when a handoff occurs during the exchange period. When the relay line allocation request is made by the corresponding handoff processing unit in conjunction with the handoff processing units 206 and 226, the middle line is allocated to the corresponding call.

Each exchange matching unit 212, 232 is a block for protocol matching between two exchanges when a call is connected or handed off from one exchange to another exchange. In case of a signal going out to a large station, the signal is converted to a common line signal and transmitted to the large station so that the exchange is connected.

Referring to Fig. 3, the step of notifying handoff at the same private mobile communication exchange will be described in detail. The figure of Fig. 3 is described from the last step of the procedure of handoff between exchanges.

First, a terminal of a mobile subscriber determines a serving exchange (hereinafter, referred to as a second) in an area controlled by an anchor exchange (hereinafter, referred to as a first personal communication exchange 122), which is a corresponding exchange that has set up subscriber information. Handoff complete with personal communication switch 124).

When the subscriber belonging to the area of the second personal communication exchange 124 which is the serving exchange in the handoff state is handed off between cells in the same base station controller, the subscriber station handles it and the handoff result thereof is processed. Notify exchange 124 (step 302).

The second base station controller matching unit 222 in the second personal communication exchange 124 receives the result of the handoff success and transmits it to the second handoff processing unit 226 (step 304).

The second handoff processing unit 226 receives the result of the handoff success, configures information necessary for transmission between the exchanges for information management of the base station controller such as statistics, and includes a handoff report content including a report on the success of the internal handoff. Is transmitted to the second exchange matching unit 232 (step 306).

The second exchange matching unit 232 is a signal number for the first personal communication exchange 122 sent by the second handoff processing unit 226 and the anchor exchange of the mobile subscriber handed off by the first personal communication exchange 122. Therefore, the handoff report is transmitted to the first switch matching unit 212 of the first personal communication switch 122 using the occupied relay line information (step 308).

The first switch matching unit 212 of the first personal communication exchange 122 receives the report of the handoff success and the internal handoff report and receives the first handoff relay line manager that is already operating to know the address of the associated handoff processing unit. The handoff report is sent to step 208 (step 310).

The first handoff relay line management unit 208 operating in conjunction with the associated first handoff processing unit 206 uses the relay line number used by the mobile subscriber who has performed an internal handoff among the information sent from the second personal communication exchange 124. Search for the address of the handoff processing unit handling the subscriber (step 312).

The first handoff relay line management unit 208 transmits the address and handoff report content of the handoff processing unit found in step 310 so that the first handoff processing unit 206 processes the internal handoff report message (step 314).

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 limited to the spirit of the invention as described in the appended claims.

As described above, according to the present invention, when any one mobile subscriber completes the switching period handoff and then moves to another cell in one base station controller in the serving exchange, the information on the handoff is passed through the corresponding serving exchange to the anchor exchange. By transmitting information on the occurrence of handoff, the anchor exchange can know the information of subscribers who have handed off. Therefore, it is effective to help exchange design, base station controller design and base station design by using database as a statistical data. .

Claims (1)

The terminal of the mobile subscriber is an anchor exchange 122, which is a corresponding exchange set up with subscriber registration, and a serving exchange which is performing service by handing off in the area controlled by the anchor exchange 122. In the personal communication system comprising 124, with any subscriber handoff completed, If the handoff subscriber belonging to the serving exchange area is handed off between cells in the same base station controller, the base station controller notifies the serving exchange (124) of the handoff result; Receiving, by the base station controller matching unit 222 in the serving exchange 124, the result of the handoff success and transmitting the result to the handoff processing unit 226 of the serving exchange; The handoff processing unit 226 transmits the handoff report to the handoff relay line management unit 208 of the anchor exchange 122 through the exchange matching unit of the handoff report that constitutes information necessary for transmission between the exchanges. ; The handoff relay line management unit 208 finds the address of the handoff processing unit and causes the handoff processing unit 206 in the anchor exchange to process an internal handoff report message. Method for handoff notification in a.

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