JP3387450B2 - Mobile communication system, method of registering position of mobile station and method of controlling call - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system, a mobile station location registration method and a paging control method.

[0002]

2. Description of the Related Art A conventional technique of this kind will be described with reference to the drawings.

FIG. 7 is a block diagram showing an example of a conventional mobile communication system, and FIG. 8 is an operation of each of the mobile station side and the base station side when calling a mobile station in the conventional mobile communication system shown in FIG. It is a flowchart showing.

In FIGS. 7 and 8, the conventional mobile communication system shows the contents disclosed in Japanese Patent Application Laid-Open No. 4-123533, in which the number of position registration groups for the mobile station 140 can be set from the base station 130 side. Is. Mobile station 140
The base station 130 stores a unique grouping number.
The broadcast information from the side is received (step 201), and the group number is calculated from the number of groupings and the grouping number of the mobile station 140 (step 203). After calculating the group number, the mobile station 140 compares its own group code among a plurality of position codes of the broadcast information with that code or a code stored in advance (step 205), and if they do not match, position registration. The request signal is transmitted to the base station 130 to perform normal location registration control (step 207), and the updated code is stored (step 209).

Therefore, when the base station 130 calls all at once, the position code is retrieved from the home memory station 110 (step 211) and the same processing as the mobile station 140 is performed from the grouping number in the position code. The group number is calculated by performing the calculation (step 213), and the base station 130 in the area where the mobile station 140 is located can be specified from the group number and the position code (step 215).
By transmitting a paging signal from 30 (step 217), it is possible to avoid concentration of the position registration traffic in a specific zone on the boundary of the position registration area.

[0006]

In this conventional mobile communication system, when paging is performed, not only the position code but also the group number is used to paging in a specific area. Is complicated, and when calling an individual mobile station, because the subscriber number is used, there is a large amount of call signal data, and a move that can be accommodated in the paging area is possible. There is a problem that the number of stations cannot be increased.

[0007]

In a mobile communication system of the present invention, a plurality of base stations each have a wireless zone of a service area managed by each base station, and a paging area is set in a plurality of adjacent wireless zones set in advance. All of the paging areas constitute an entire area, and one home memory station for all the areas, a mobile station communication control station connected to this home memory station, and this mobile communication control station A plurality of base stations connected to each other and a plurality of mobile stations that can be connected to the plurality of base stations via a wireless line, and the home memory station stores the latest position information of each of the plurality of mobile stations. A location registration accepting means for accepting location registration of each of the plurality of mobile stations from the plurality of mobile stations via the plurality of base stations; Calling means for calling a number of mobile stations via the plurality of base stations, and the paging area by setting waiting numbers indicating the waiting states of the plurality of digits with a smaller number of digits than the respective identification numbers or subscriber numbers The standby number allocation memory managed and stored in units, and the paging area of the plurality of base stations,
A position code assigning memory for storing how it is configured, each of the plurality of mobile stations is a position registering unit for registering a position of the present location, The subscriber position of the home memory station has a standby number memory for receiving and storing a standby number transmitted, and a position code memory for receiving and storing a position code transmitted from the base station. The information memory stores a position code indicating the current paging area for a unique identification number or a subscriber number for identifying the plurality of mobile stations, and a standby number in the position code in association with each other. The standby number assigning memory of the mobile communication control station stores a plurality of standby numbers associated with respective position codes indicating the plurality of paging areas. The position code assignment memory of the mobile communication control station stores which of the plurality of paging areas the plurality of paging areas are configured to correspond to the plurality of position codes. ing.

According to the mobile station location registration method of the mobile communication system of the present invention, a plurality of base stations each have a wireless zone of a service area managed by each of the plurality of base stations, and the paging is performed in a plurality of preset adjacent wireless zones. An area, all paging areas constitute an entire area, one home memory station for all areas, a mobile communication control station connected to this home memory station, and this mobile communication control station A mobile communication system comprising the plurality of base stations connected to each other and a plurality of mobile stations connectable to the plurality of base stations by a wireless line, wherein the mobile station is a paging area transmitted by the base station at the time of transition. receives location code specifying, compares the position code with the received contents of the location code memory in which the mobile station has, but enters the waiting ends the process equal equal If not, it sends a location registration request, receives a location registration acceptance signal containing the standby number from the base station, stores the received position code in the position code memory, stores the standby number in the standby number memory, and enters the standby state. When the mobile communication control station receives the location registration request via the base station, the mobile communication control station searches the location code allocation memory for the location code of the base station that has received the location registration request, and retrieves it from the standby number allocation memory. A standby number to be used is selected, a position code and a standby number of the home memory station for the base station are updated, and a command for transmitting a position registration acceptance including the selected standby number is transmitted to the base station.

A mobile station paging control method for a mobile communication system according to the present invention has a plurality of base stations each having a wireless zone of a service area managed by each of the plurality of base stations, and paging in a plurality of preset adjacent wireless zones. An area, all paging areas constitute an entire area, one home memory station for all areas, a mobile communication control station connected to this home memory station, and this mobile communication control station A mobile communication system comprising the plurality of base stations connected to each other and a plurality of mobile stations connectable to the plurality of base stations by a wireless line, wherein the mobile station is a paging area transmitted by the base station at the time of transition. Receiving the position code designating the position code and comparing the contents of the position code memory of the mobile station with the received position code. If they are equal, the process is terminated and the standby mode is entered. If not, send a location registration request, receive a location registration acceptance signal containing the standby number from the base station, store the received position code in the position code memory, store the standby number in the standby number memory, and enter the standby state. When the mobile communication control station receives the location registration request via the base station, the mobile communication control station retrieves the location code of the base station that received the location registration request from the location code allocation memory, and from the standby number allocation memory. Select an unused standby number, update the position code and standby number for the base station of the home memory station, and send a command to the base station to send a location registration acceptance including the selected standby number, and issue the command. The mobile communication control station makes a call from the home memory station in response to a request from the base station that has accepted the call. The position code and the stand-by number are read from the mobile identification number of the user, the base station having the read position code is selected from the position code allocation memory, and the read stand-by number is designated for all the selected base stations. A mobile station receives a call signal from a base station that is instructed to send the call signal, and the mobile station receives the call signal from the base station, and stores the standby number in the call signal and its own standby number memory. If it does not match, it returns to the call signal reception state, and if it matches, it responds.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing a mutual relationship among all areas, a paging area wireless zone and a base station in a mobile communication system according to one embodiment of the present invention, and FIG. 2 is a mobile communication according to one embodiment of the present invention. It is a block diagram showing one composition of a system.

In FIG. 1, in the mobile communication of this embodiment, the base stations 300, 310 , 320 , 330, 3 are used.
Reference numerals 40 and 350 respectively designate wireless zones 600 , 610 , 620 , 630 for designating a range in which communication control is possible .
640 and 650 .

For example, the range in which the communication control of the base station 330 is possible is the wireless zone 630 . Further, the paging area called by each base station with the same position code is the wireless zones 630 , 640 and 6 in the paging area 500 in the case of FIG.
50, and the paging area 510 is composed of wireless zones 600, 610 and 620 .

Further, the entire area of this mobile communication system is composed of paging areas 500 and 510, and one home memory station 100 and this home memory 10 are provided in all areas.
The mobile communication control station 200 connected to 0 is configured. Then, the mobile communication control station 200 has base stations 300, 310, 320, 330, 340, 350 in all areas.
It is connected to the.

In FIG. 2, one configuration of the mobile communication system according to the present embodiment is such that one station has a home memory station 100 for all areas and one station has mobile communication control for all areas connected to the home memory station 100. Station 200 and mobile communication control station 2
00 and a base station 300 wirelessly connected to the mobile station 400, and the mobile communication control station 200 includes the base stations 310 to 350.
It is also connected with.

The home memory station 100 has a subscriber information memory 101, and the subscriber information memory 101 stores a subscriber number (identification number), a position code, and a standby number for each mobile station.

The mobile communication control station 200 has a position registration receiving means 201, a calling means 202, a standby number allocation memory 203, and a position code allocation memory 204,
The standby number allocation memory 203 stores whether or not a standby number is allocated for each position code, the position code allocation memory 204 stores a base station for each position code, and the base station 300 stores the mobile station 400 and wireless signals. The mobile station 400 has a position registration means 401, a standby number memory 402, and a position code memory 404. The mobile station 400 has a position code, a position registration request, a position registration acceptance, a call, and a response signal.

FIG. 3 is a diagram showing an example of the storage configuration of the subscriber position information memory of the home memory station in the present embodiment,
FIG. 4 is a diagram showing an example of the storage configuration of the standby number assignment memory of the mobile communication control station in the present embodiment, and FIG. 5 is an example of the storage configuration of the position code assignment memory of the mobile communication control station in the present embodiment. It is a figure.

In FIG. 3, the subscriber position information memory 101 of the home memory station 100 has the latest position codes for all the mobile stations scattered in the entire area of the mobile communication system of this embodiment. And the standby number are stored.

For example, it is stored that the mobile station (machine) identification number (corresponding to the subscriber number) 1 is in the paging area of the position code 1 and the standby number is 1.

In FIG. 4, the standby number assignment memory 203 of the mobile communication control station 200 stores the usage state of the standby station assigned to each position code indicating the paging area.

For example, in the position code 1, the standby number 1
Is in use, and the standby number 2 is stored as unused.

In FIG. 5, the position code assignment memory 204 of the mobile communication station 200 stores which base station each position code includes.

For example, for position code 1, base station 300,
It is stored that 310 and 320 are included.

FIG. 6 is a flow chart showing the operation of the present embodiment. (A) is a flow chart showing the operation of the mobile station during zone movement, and (b) is a flow chart showing the operation of the mobile communication control station during location registration. , (C) is a flowchart showing the operation of the mobile control station at the time of calling, and (d) is a flowchart showing the operation of the mobile station at the time of standby.

Next, the operation of the mobile communication system of this embodiment will be described with reference to FIGS.

First, the mobile station 4 in the wireless zone 600
A case where 00 moves to the wireless zone 610 of the base station 310 will be described with reference to FIG.

In FIG. 1 and FIG. 6A, the mobile station 400 at the time of transition from the wireless zone 600 to the wireless zone 610.
Receives the position code transmitted from the base station 310 (S
1) Compare the contents of the position code memory 403 with the received new position code (S2). If they are equal, the process is terminated and the process enters standby, but if they are not equal, the position registration means 4
The location registration request is transmitted by 01 (S3), and the base station 3
The position registration acceptance signal including the standby number is received from 10 (S5), and the new position code is stored in the position code memory 3.
The standby number is stored in the standby number memory 402 (S
6) I am in the standby state.

Next, the operation of the mobile communication control station 200 when the mobile station 400 makes a location registration request will be described with reference to FIG. 6 (b).

In FIG. 1, FIG. 2 and FIG. 6B, when the mobile station 400 moves to the radio zone 610, the mobile communication control station 200 receives a location registration request via the base station 310 (S6), The position code of the base station 310 that has received the position registration is searched from the position code allocation memory 204 (S7), an unused standby number is selected from the standby number allocation memory 203 (S8), and the mobile station is moved to the home memory station 200. The position code and standby number of 400 are updated (S9), and a command for transmitting the position registration acceptance including the standby number selected in S8 is transmitted to the base station 310 (S10).

Next, the mobile station 4 in the wireless zone 650.
Operation when 10 calls the mobile station 400
An explanation will be given based on (c).

In FIGS. 1, 2 and 6C, when the mobile station 410 calls the mobile station 400, the mobile communication control station 200 receives the position request of the mobile station 400 via the base station 350. Then, the position code and the standby number are read from the mobile station identification number of the subscriber (mobile station 400) calling from the home memory station 100 (S11), and the base station having the read position code is selected from the position code allocation memory 204. Then, (S12), the standby number of S11 is designated to all the base stations of S12, and a command to send a calling signal is issued (S13).

Next, the operation when the mobile station 400 in the standby state is called will be described with reference to FIG. 6 (d).

The mobile station 400 receives the call signal from the base station 310 (S14), compares the standby number in the call signal with the standby number stored in the standby number memory 402 (S15), and the two must match. For example, it returns to the state of receiving a call, and if they match, it responds (S1
6).

In the present embodiment, the standby number has a digit number (10 digits) rather than each mobile station subscriber number (identification number).
The number of digits is set to a small number, for example, 6 digits or less.

As described above, in this embodiment, the identification number (subscriber number) unique to the mobile station 400 is not used when calling the mobile station 400. Therefore, conventionally, the identification number unique to the mobile station 400 is 1 at a time for public mobile communications
There are cases where the number of digits is 0 or more, and the number of mobile stations that can be accommodated in the paging area cannot be increased due to the large amount of data for the paging signal. Therefore, the paging area becomes small and the number of location registrations is reduced. Although the control channel was increased and the control channel could not be effectively used, if the number of digits of the standby number is, for example, a decimal number of 6 digits, the data amount of the call signal can be reduced, thereby reducing the period of use of the control channel. The utilization efficiency can be improved.

Further, by reducing the data amount of the paging signal, the number of mobile stations that can be accommodated in the paging area can be increased more than in the conventional case, so that the paging area is substantially expanded. As a result, it is possible to reduce the number of times of location registration due to movement of the mobile station.

[0038]

As described above, according to the present invention, a plurality of base stations each have a wireless zone of a service area managed by each base station, and a preset paging area is formed by a plurality of adjacent wireless zones. , All paging areas constitute all areas, and for all areas, one home memory station, a mobile communication control station connected to this home memory station, and a plurality of mobile communication control stations connected to this home memory control station Base station,
The home memory station has a subscriber position information memory for storing the latest position information of each of the plurality of mobile stations. The station includes a location registration accepting means for accepting location registrations of a plurality of mobile stations from a plurality of mobile stations via a plurality of base stations, a calling means for calling a plurality of mobile stations via a plurality of base stations, and a plurality of calling means. A standby number indicating a standby state of each mobile station is set with a number of digits smaller than each identification number or a subscriber number, and is managed and stored in the paging area unit, and a standby number allocation memory; Having the position code assignment memory for storing how the paging area of the base station is configured, it is possible to have the following effects.

By setting the standby number used when calling the mobile station to be smaller than the number of digits of the identification number of the mobile station or the subscriber number, the data amount of the call signal can be reduced, so that the use period of the control channel is reduced. There is an effect that the utilization efficiency can be improved.

Further, since the number of mobile stations that can be accommodated in the paging area can be increased by reducing the data amount of the paging signal, it is substantially equivalent to the expansion of the paging area. As a result, there is an effect that the number of position registrations due to the movement of the mobile station can be reduced as compared with the conventional case.

[Brief description of drawings]

FIG. 1 is a diagram showing a mutual relationship among an entire area, a paging area, a wireless zone, and a base station in a mobile communication system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a mobile communication system according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of a storage configuration of a subscriber position information memory of the home memory station in the present embodiment.

FIG. 4 is a diagram showing an example of a storage configuration of a standby number assignment memory of the mobile communication control station in the present embodiment.

FIG. 5 is a diagram showing an example of a storage configuration of a position code assignment memory of the mobile communication control station in the present embodiment.

6A and 6B are flowcharts showing an operation in the present embodiment, FIG. 6A is a flowchart showing an operation of a mobile station when moving a zone, and FIG. 6B is a flowchart showing an operation of a mobile communication control station at the time of position registration; 6C is a flowchart showing the operation of the mobile communication control station at the time of calling, and FIG. 7D is a flowchart showing the operation of the mobile station at the time of standby.

FIG. 7 is a block diagram showing an example of a conventional mobile communication system.

FIG. 8 is a flowchart showing respective operations on the mobile station side and the base station side when calling a mobile station in the conventional mobile communication system shown in FIG. 7.

[Explanation of symbols]

100 Home memory station 101 Subscriber position information memory 200 Mobile communication control station 201 Position registration acceptance means 202 Calling means 203 Standby number allocation memory 204 Position code allocation memory 300, 310, 320, 330, 340, 350
Base station 400,410 Mobile station 401 Position registration means 402 Standby number memory 403 Position code memory 500,510 Paging area 600,610,620,630,640,650
Wireless zone

Continuation of front page (58) Fields investigated (Int.Cl. ⁷ , DB name) H04B ^7/ 24-7/34 H04Q ⁷ /00-7/36

Claims (7)

(57) [Claims] 1. A plurality of base stations each have a wireless zone of a service area managed by each of the plurality of base stations, and a plurality of adjacent wireless zones that are set in advance constitute a paging area, and all paging areas include all paging areas. An area, one home memory station for all the areas, a mobile station communication control station connected to the home memory station, the plurality of base stations connected to the mobile communication control station, and A plurality of mobile stations that can be connected to the base station by a wireless line, the home memory station has a subscriber position information memory that stores the latest position information of each of the plurality of mobile stations,
The mobile communication control station receives location registration acceptance means for accepting location registration of each of the plurality of mobile stations from the plurality of mobile stations via the plurality of base stations, and the plurality of mobile stations as the plurality of base stations. Calling means for calling via the call waiting means, and a waiting number that sets the waiting number indicating the waiting state of each of the plurality of digits with a number of digits smaller than each identification number or subscriber number and is managed and stored in the paging area unit. A mobile communication system comprising a number assignment memory and a position code assignment memory for storing how the paging areas of the plurality of base stations are configured. 2. Each of the plurality of mobile stations has a position registration means for registering a position of the present location, and a standby number for receiving and storing a standby number transmitted from the base station at the time of the position registration. The mobile communication system according to claim 1, further comprising a memory and a position code memory that receives and stores a position code transmitted from the base station. 3. The subscriber position information memory of the home memory station stores a position code indicating a current paging area for a unique identification number or a subscriber number for identifying the plurality of mobile stations, and its position. 2. The standby number in the code is stored in association with each other.
The mobile communication system described. 4. The standby number assignment memory of the mobile communication control station stores the usage states of a plurality of standby numbers in association with respective position codes indicating the plurality of paging areas. The mobile communication system according to claim 1. 5. The position code allocation memory of the mobile communication control station stores which of the plurality of base stations constitutes the plurality of paging areas in association with the plurality of position codes. Claim 1 characterized by the above.
The mobile communication system described. 6. A plurality of base stations each have a wireless zone of a service area managed by each base station, and a plurality of adjacent wireless zones that are set in advance constitute a paging area, and all paging areas include all paging areas. An area is constituted, one home memory station for all the areas, a mobile communication control station connected to the home memory station, a plurality of base stations connected to the mobile communication control station, and a plurality of the plurality of base stations. A mobile communication system comprising a base station and a plurality of mobile stations that can be connected by a wireless line, wherein the mobile station receives a position code designating a paging area transmitted by the base station, and the mobile station position code is compared with the position code with the received contents of the memory, sends out a location registration request if not equal but fall if the processing is finished waiting equal, the base station having Receives a position registration acceptance signal including a standby number from the mobile communication control station, stores the received position code in the position code memory, stores the standby number in the standby number memory, and enters a standby state, and the mobile communication control station sends the position registration request to the base station. When receiving via the station, the position code of the base station that received the position registration request is searched from the position code allocation memory, an unused standby number is selected from the standby number allocation memory, and the base of the home memory station is selected. A location registration method for a mobile station of a mobile communication system, comprising: updating a location code and a landing number for a station and transmitting a location registration acceptance including the selected landing number to the base station. 7. A plurality of base stations each have a wireless zone of a service area managed by each of the plurality of base stations, and a plurality of preset adjacent wireless zones constitute a paging area, and all paging areas include all paging areas. An area is constituted, one home memory station for all the areas, a mobile communication control station connected to the home memory station, a plurality of base stations connected to the mobile communication control station, and a plurality of the plurality of base stations. A mobile communication system comprising a base station and a plurality of mobile stations that can be connected by a wireless line, wherein the mobile station receives a position code designating a paging area transmitted by the base station, and the mobile station The contents of the position code memory that it has are compared with the received position code, and if they are equal, the processing ends and standby is entered, but if they are not equal, a position registration request is sent out, and from the base station Receiving a position registration acceptance signal including a receiving number, storing the received position code in the position code memory, storing the standby number in the standby number memory, and entering a standby state, the mobile communication control station requests the position registration request. Upon reception via the base station, the position code of the base station that received the position registration request is searched from the position code allocation memory, an unused standby number is selected from the standby number allocation memory, and the home memory station The mobile communication control station is updated in response to a request from the base station that has received the call, by updating the position code and the standby number for the base station, and sending a command to send the location registration acceptance including the selected standby number to the base station. Reads the position code and standby number from the mobile identification number of the subscriber calling from the home memory station. , Selecting a base station having the read position code from the position code allocation memory, issuing a command to all the selected base stations by designating the read standby number and transmitting a calling signal, The mobile station receives the call signal from the base station that was instructed to send, compares the standby number in the call signal with the one stored in the standby number memory of its own station, and if they do not match, sets the call signal reception state. A paging control method for a mobile station of a mobile communication system, characterized in that a response is made when returning and matching.