JPH04252594A - Mobile body communication system - Google Patents

Abstract

PURPOSE:To realize the mobile body communication system able to reduce a processing time for indexing a position registration zone being an object of incoming call processing by reducing information quantity without losing the efficiency of the incoming call processing. CONSTITUTION:An exchange 9 is provided with a database 7 in which specific base station information whose position registration zones 3a, 3b are resident adjacently is set with sequencing corresponding to each of base stations 2a, 2b,..., and with the function of executing incoming call processing to the base station to which a relevant mobile equipment makes position registration when a call comes to mobile equipments 4a, 4b and to a base station to which base station information is set corresponding to the base station of the database 7. The communication is smoothed such as reduction in incoming call disable number of times and the information quantity is saved without losing the efficiency of the incoming call processing and the index processing time of the position registration zone is reduced.

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, and particularly to a method for receiving a call to a mobile device.

0002

2. Description of the Related Art FIG. 3 is a block diagram showing a conventional mobile communication system disclosed in, for example, Japanese Unexamined Patent Publication No. 2-109431.

[0003] In the figure, reference numeral 1 denotes an exchange that controls communication connections and manages information necessary therefor. 2a, 2b,・
... are base stations connected to switching center 1, 3a,
3b, . . . are location registration zones constituted by each base station 2a, 2b, . 4a, 4b, . . . are mobile devices that move within the communication area formed by the location registration zones 3a, 3b, .

[0004] 5 is a database held by the exchange 1;
FIG. 4 shows the configuration of the database 5. In this FIG. 4, 6a, 6b, . . . represent individual mobile devices 4a, 4b,
This is mobile device information regarding...

Next, the operation will be explained. Here, a case will be described in which, for example, a mobile device 4a that is moving within the location registration zone 3a and has registered its location with the base station 2a receives an incoming call.

Here, as shown in FIG. 4, mobile device information 6a, 6b, . . . corresponding to each mobile device 4a, 4b, .・
・Location registration zones 3a, 3j, ・where the location is registered
...and the adjacent location registration zones 3a and 3b
... is registered. .

When a mobile device 4a receives an incoming call, the switching center 1 determines the latest location at that time in the database 5 it has based on the registration information, and selects the location registration zone in which the mobile device 4a is registered. 3a and the location registration zones 3b to 3g adjacent thereto to be called. Next, processing for incoming calls to the mobile device 4a is executed for the base stations 2b to 2g forming each of these location registration zones 3a to 3g.

Therefore, as shown by the two-dot chain line in FIG. 3, even if the mobile station 4a receiving the call has moved to the location registration zone 3b adjacent to the location registration zone 3a, the call will be called by the base station 2b. This means that the movement of the mobile device 4a is
The same applies to any location within the range of the location registration zones 3b to 3g to be called, which are shown surrounded by solid lines.

[0009] The mobile device 4a further moves and leaves the communication area formed by the location registration zones 3a to 3g,
For example, when moving to a location registration zone 3i, location registration is performed in the new destination location registration zone 3i. At this time, simultaneously, in the mobile device information 6a of the database 5, the location registration zones 3j, 3b, . . . to be called, which are adjacent to the destination location registration zone 3i, are registered.

[0010] This means that other location registration zones 3b, 3
The same applies to the case where the location is registered to mobile terminals 4b, 4b, .

[0011]

[Problems to be Solved by the Invention] Since the conventional mobile communication system is configured as described above, one mobile device 4a, 4b, . Since the registration zones 3a, 3b, . . . are registered and prepared for each mobile device 4a, 4b, . The location registration zone 3a, 3b, .

[0012] The present invention was made in order to solve the above-mentioned problems, and provides a process for reducing the amount of information without impairing the efficiency of incoming call processing and determining a location registration zone to be subjected to incoming call processing. The purpose of the present invention is to provide a mobile communication system that can also reduce time.

[0013]

[Means for Solving the Problems] A mobile communication system according to the present invention includes a database in which information on specific base stations in which location registration zones are adjacent to each other corresponding to each base station is ranked and set; If there is, the switching center will have a function to execute incoming call processing for the base station where the mobile device has registered its location and the base station whose base station information is set in the database corresponding to the base station. This is what was given to him.

[0014]

[Operation] When a mobile station receives an incoming call, the switching center in this invention executes incoming call processing to the base station with which the mobile station has registered its location, and also determines the location registration zone for the base station from the database. By determining a specific adjacent base station and executing incoming call processing for that base station as well, the amount of information can be reduced without sacrificing the efficiency of incoming call processing, and the time required to determine the location registration zone for incoming call processing can be reduced. To realize a mobile communication system that can shorten the time required.

[0015]

EXAMPLES Example 1 An example of the present invention will be described below with reference to the drawings. Figure 1
, 2a, 2b, . . . are base stations, 3a, 3b, .
. . . is a location registration zone, 4a, 4b, .
Otherwise, the detailed explanation will be omitted since it is a considerable part.

7 indicates the base of a specific base station 2a, 2b, . . . to which the location registration zone 3a, 3b, . This database is different from the database shown with reference numeral 5 in FIG. 3 in that the station information is set in a ranked manner. FIG. 4 is an explanatory diagram showing the configuration of this database 7, in which 8a,
8b, . . . are the base station information set corresponding to each base station 2a, 2b, .

9 has this database 7, and the mobile device 4
When a call is received at a, 4b, . . . , the corresponding mobile device 4a, 4
The base stations 2a, 2b, . . . b, . . . have registered their locations.
・, and the base stations 2a, 2b in the database 7.
, . . . For the base stations 2a, 2b, . . . to which base station information 8a, 8b, . This is a different exchange than the one attached.

Next, the operation will be explained. Here, each base station information 8a, 8b, . . . in the database 7 includes the switching center 9, base stations 2a, 2b, .
As information that can be arbitrarily set according to the installation status of the mobile terminals 4a, 4b, . . . or the usage status of the mobile terminals 4a, 4b, .
・It is set in order of ease of movement.

Therefore, as shown in FIG. 1, when a mobile device 4a that has registered its location in the location registration zone 3a of the base station 2a receives a call, the exchange 9 sends a call to the base where the location registration has been performed. Incoming call processing is executed for the station 2a.

[0020] Here, as shown by the two-dot chain line in Fig. 1, before the next location registration is performed, the mobile device 4a has moved to the location registration zone 3b constituted by the adjacent base station 2b. In this case, if the base station 2b is set in the base station information 8a of the base station 2a in the database 7, the switching center 9 selects the base station 2 according to the setting order in the base station information 8a.
Incoming call processing is also performed on point b.

This means that the movement of the mobile device 4a is in the location registration zones 3b to 3b constituted by the base stations 2b to 2g set in the base station information 8a of the database 7, which are shaded with diagonal lines in FIG. The same applies if it is within the range of 3g.

[0022]

[Effects of the Invention] As described above, according to the present invention, when a mobile device receives a call, a location registration zone is located adjacent to the base station with which the mobile device is registering its location. Since the configuration is configured to identify a specific base station and execute incoming call processing for that base station as well, communication becomes smoother by reducing the number of times calls cannot be received. It is possible to reduce the amount of information without sacrificing the efficiency of incoming call processing according to the usage situation, etc., and the effect is to obtain a mobile communication system that can shorten the time required to determine the location registration zone for incoming call processing. be.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a mobile communication system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the configuration of the database.

FIG. 3 is a block diagram showing a conventional mobile communication system.

FIG. 4 is an explanatory diagram showing the configuration of the database.

[Explanation of symbols]

2a, 2b,... Base station 3a, 3b,... Location registration zone 4a, 4b,...
. . . Mobile device 7 Databases 8a, 8b, . . . Base station information 9 Switching station Note that in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] 1. A plurality of base stations each forming a predetermined registration zone, a mobile device moving within a communication area formed by the location registration zone, and a base station configured for each base station. The location registration zone has a database in which the base station information of a specific base station among the base stations adjacent to the location registration zone is ranked and set, and when a call arrives at the mobile device, Mobile communication comprising: a base station with which a mobile device has registered its location; and a switching center that executes incoming call processing for the base station whose base station information is set in the database corresponding to the base station. system.