JP2611484B2 - Wireless phone location registration method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a radio base station which is arranged in each of a plurality of radio zones forming a service area and is connected to a telephone network via a line controller. The present invention relates to a location registration method for a wireless telephone connected via a wireless line, including a control wireless line to be used.

[Conventional technology]

In recent years, the wireless telephone system has been required to be reduced in size from a wide area such as a car telephone to a company / office or even a home.

When one radiotelephone sets a plurality of radio zones by a plurality of radio base stations as service areas, a call is started from the radiotelephone. In the case of a call, a call is made from all wireless base stations to search. In order to avoid such waste, the wireless telephone must register the location of the wireless telephone in a predetermined time zone.

Conventionally, in this type of location registration method, a line control device that accommodates and connects wireless base stations provided in a plurality of wireless zones forming a service area stores location information of a wireless telephone.

FIG. 8 is a block diagram showing an example of the related art. 8th
According to the figure, the mobile radio telephone system is a mobile radio telephone 91.
And a wireless base station 92 connected by a wireless line 41. The wireless base station 92 has respective wireless zones 81, and within a service area 80 formed by the plurality of wireless zones 81, a wireless telephone
91 can move and communicate. A plurality of wireless base stations 92 forming the same service area 80 are accommodated in the same line controller 93 by the wired line 42. In addition, this line controller 93
Is connected to a telephone network 40 via a subscriber line 43.

The radiotelephone 91 has an identification number assigned to itself, which corresponds to one of the subscriber lines 43. Line controller
93 has a position detecting unit 94, and when there is a request for position registration of the wireless telephone 91, the position detecting unit 94 determines a wireless base station 92 for setting a communication path between the wireless telephone 91 and the wireless line 41. . Further, the line control device 93 has a position registration unit 95 for registering the identification number of the wireless telephone 91, the corresponding subscriber line 43, and the wireless zone 81 (wireless base station 92) as the detection position.

 Next, the registration procedure will be described.

First, the radio telephone 91 periodically receives radio waves from the radio base station 92, and issues an alarm when the reception level from the registered radio base station 92 is equal to or lower than a predetermined value. Thus, the wireless telephone 91 makes a call for registration. If the wireless line 41 has a control wireless line, the wireless telephone 91 uses this control wireless line and transmits a registration request signal including a self-identification number assigned to itself. The wireless base station 92 measures the level value of the received registration request signal, and transmits the registration request signal to the line controller 93 in the registration request signal. In the line controller 93, when receiving a registration request signal of the same radio telephone 91 from a plurality of radio base stations 92, one of the maximum reception level values included in the signal, or one of a predetermined level or more Is selected by the position detection unit 94, and the identification number of the wireless telephone 91 included in the selected signal is registered in the wireless base station 92 that is the source of the selected signal or the registration area corresponding to the wireless zone 93 of the wireless base station 92. ,
That is, it registers with the position registration unit 95 and returns a registration completion signal to the wireless telephone 91 via the wireless base station 92. The registration completion signal allows the wireless base station 92 and the wireless telephone 91 to be restored, and notifies the wireless telephone 91 of the wireless base station or wireless zone being registered.

[Problems to be solved by the invention]

In the conventional location registration method described above, a line control device accommodating a plurality of radio base stations forming a service area is provided, and this line control device is connected to one moving radio telephone via a plurality of different radio base stations. When a plurality of registration request signals are received, the identification code of the radio telephone included in the signal is determined, and the reception level of the signal from the radio telephone is compared to determine and register the zone of the radio telephone. However, there is a problem in that the processing load on the line control device becomes heavy.

SUMMARY OF THE INVENTION An object of the present invention is to provide a location registration method which solves the above-mentioned problem by providing a zone selection means for a radio zone to which a moving radio telephone belongs to in the radio telephone.

[Means for solving the problem]

The location registration method according to the present invention includes a wireless base station arranged in each of a plurality of wireless zones forming a service area and connected to a telephone network via a line control device, and a wireless line including a commonly used control wireless line. In a location registration method for a wireless telephone connected via a network, the following configuration is provided.

(B) the wireless telephone:-a response request signal transmitting means for forming a response request signal including an identification code assigned to itself and transmitting the response request signal via the control wireless line;-receiving a response signal from the wireless base station Zone selection means for selecting a response signal that first exceeds a predetermined reception level among the received response signals, and selecting a wireless base station that has transmitted the response signal as its own location registration destination; Registration request signal sending means for forming and transmitting a registration request signal including its own identification code by designating a transmission source base station of the response signal selected by the method according to the present invention; Location registration of a wireless base station located in each zone and connected to the telephone network via a line controller and a wireless telephone connected via a wireless line including a commonly used control wireless line The method has the following configuration.

(B) the wireless telephone:-a response request signal transmitting means for forming a response request signal including an identification code assigned to itself and transmitting the response request signal via the control wireless line;-receiving a response signal from the wireless base station Zone selection means for selecting a response signal that first exceeds a predetermined reception level among the received response signals, and selecting a wireless base station that has transmitted the response signal as its own location registration destination; Registration request signal transmitting means for forming and transmitting a registration request signal including its own identification code by designating the transmission source base station of the response signal selected by the above, measuring and forming a response signal including its level value and zone information When a response signal from the wireless base station is received, the zone selection means of the wireless telephone determines in advance a response request signal reception level value included in the response signal among the received response signals. It is characterized in that a signal that first exceeds the determined reception level value is selected, and a wireless base station that has transmitted the response signal is selected as its own location registration destination.

As a third configuration, when the zone selection means of the wireless telephone in the second configuration receives a response signal from the wireless base station, the zone selection unit may select a response signal from the response signals received within a predetermined time. It is characterized in that a signal having the highest response request signal reception level value included in the signal is selected, and the wireless base station that has transmitted the response signal is selected as its own location registration destination.

〔Example〕

Next, the location registration method of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a diagram for explaining the operation procedure of FIG.

As shown in FIG. 1, in this system, the wireless telephone 10 is connected to the wireless base station 20 via a wireless line 41, and the wireless base station 20 is connected to the line controller 30 with a priority line. The line controller 30 terminates the subscriber line 43 of the telephone network 40. Wireless line 4
1. The priority line 42 and the subscriber line 43 are the same as those already described with reference to FIG.

The wireless telephone 10 has a zone selection unit 11 and an identification number memory 12, and the wireless base station 20 has a response signal forming unit 21 and a zone number memory 22. The line controller 30 may be a switching device, for example, a private branch exchange and a key telephone device.

The details of the zone selection means 11 will be described later. The identification number memory 12 stores an identification number given to each of the wireless telephones 10 in advance. The response signal forming unit 21 forms a response signal to the response request signal received by the radio base station 20. The zone number memory 22 stores a zone number assigned in advance to a wireless zone that is a communication range of the wireless base station 20. The telephone location registration area 31 is provided for each wireless telephone 10, and stores a wireless zone number as positional information of the wireless telephone.

Next, the operation procedure of the present invention will be described with reference to FIG. 1 and FIG.

First, when registering the location, the radio telephone 10 calls the radio base station 20 and requests a response signal to be returned, including the identification number read from the identification number memory 12, and the radio line 41. Make a call to the control wireless circuit line (procedure
101) The radio base station 20 receiving the response request signal,
The zone number is read from the zone number memory 22 and is formed into a response signal by the response signal forming unit 21 together with the received identification number (procedure 102), and is transmitted to the control wireless line (procedure 103).

When receiving a plurality of response signals including the self-identification number, the wireless telephone 10 selects one response signal according to a predetermined procedure, and learns the selected wireless zone from the zone number included in the selected response signal (procedure). 104). Next, the wireless telephone 10 transmits a registration request signal including the selected zone number together with the identification number via the control wireless line (step 105). When receiving the registration request signal, the wireless base station 20 deletes the identification number included in the own zone from the registration of the own zone and recovers the same (step 106) while including the zone number of the other zone. Is registered in the own zone, and relayed to the line controller 30 via the wired line 42 (procedure 107).

The line controller 30 receives the registration request signal, stores and registers the wireless zone number as position information in the telephone position registration area 31 corresponding to the identification number of the wireless telephone 10 included in the signal (procedure).
108)

After completing the location registration, the line control device 30
, A registration completion signal is transmitted (step 109), and the registered wireless base station 20 relays this (step 110). Wireless telephone 10
Receives this registration completion signal and ends the position registration process (step 111).

Next, the procedure 104 in FIG. 2 will be described in detail with reference to FIGS.

FIG. 3 is a flowchart showing a first example of a procedure for selecting a wireless zone, and FIG. 4 is a block diagram of a wireless telephone showing an example for realizing FIG.

As shown in FIG. 4, the radio telephone 50 is a zone selecting means.
51 and a registration request signal forming unit 57. The zone selecting unit 51 includes a level measuring unit 52, a received signal register 53, a response signal detecting unit 54, a level comparing unit 55, and a zone number extracting unit 5.
With 6. The level measurement unit 52 measures the reception level of the reception signal from the antenna, and sends the measurement level value to the reception signal register 53 together with the reception signal. Receive signal register 53
Is to temporarily store the received signal and to the response signal detection unit 54,
Also, it transmits the level value to the level comparing section 55. The response signal detector 54 receives the received signal, identifies the response signal, and notifies the level comparator 55 when the received signal is a response signal. The level comparing section 55 compares the input from the received signal register 53 with a predetermined specified level value in response to the notification from the response signal detecting section 54, and when the input level value is larger than the specified level value, outputs an excess signal to the received signal register 53. Output to When receiving the excess signal, the reception signal register 53 outputs the temporarily stored response signal to the zone number extraction unit 56 to extract the zone number.

Next, FIG. 3 will be described with reference to FIG. When the wireless telephone 50 receives the response signal, the level measuring unit 52 measures the reception level (step 121), and the reception signal register 53
And temporarily stores the response signal and the reception level (step 122). The response signal detection unit 54
Is detected as a response signal and notified to the level comparison unit 55, the level comparison unit 55 acquires the measured value of the reception level from the reception signal register 53 and compares it with a predetermined level value (step 123). I do. When the measured value exceeds the specified value (procedure 124), the level comparing unit 55 notifies the reception signal register 53 of an excess signal and outputs a response signal being accumulated. The zone number extraction unit 56 receives the response signal from the reception signal register 53, and extracts the zone number included in the response signal (Step 125). In this way, in the radio telephone 50, the registration request signal forming section 57 inputs the extraction number output from the zone selecting means 51 as the selected zone number and forms a registration request signal (step 126). Therefore, in this case,
The zone number of the wireless zone by the shortest distance wireless base station is not always selected.

FIG. 5 and FIG. 6 are a flowchart and a block diagram showing a second example procedure for selecting the shortest distance wireless base station.

The wireless telephone 60 shown in FIG. 6 has a zone selecting means 61 and a registration request signal forming section 69. Zone selection means 61
Is a level measurement unit 62, a reception signal register 63, a response signal detection unit
64, response signal register 65, level comparison and selection section 66, time limit section 67
And a zone number extraction unit 68.

The level measuring section 62 measures the level of the received signal from the antenna and outputs the measured signal to the received signal register 63 together with the measured level value. The reception signal register 63 outputs the reception signal to the response signal detection section 64. The response signal detector 64 detects a response signal from the received signal, and sequentially stores only the response signal in the response signal register 65. The level comparison / selection unit 66, upon receiving a timed output signal after a lapse of a predetermined time of the timed unit 67 activated by the transmission of the call request signal, calculates a measured level value from each of the response signals accumulated in the response signal register 65. By taking in and comparing, one of the response signals having the maximum level value is selected and output to the zone number extraction unit 68. The zone number extracting section 68 extracts a zone number from the received response signal and outputs the zone number as an output of the zone selecting means 61.
The registration request signal forming section 69 forms the zone number output by the zone selecting means 61 as the selected zone number of the registration request signal.

Next, FIG. 5 will be described with reference to FIG. First, when the wireless telephone 60 transmits a response request signal (procedure 131), the timer 67 of the zone selecting means 61 starts measurement of a predetermined time (procedure 132). The radio base station that has received the response request signal forms a response signal and returns
60 measures the reception level of the response signal by the level measurement unit 62,
The measurement level value is stored in the reception signal register 63 together with the signal. The accumulated signal of the reception signal register 63 is transmitted to the response signal detection unit 64
Is detected as a response signal, the response signal register 65 that has received the detection notification takes in and sequentially stores the received response signal together with the measured level value (step 133).

When the predetermined time has elapsed (procedure 134), the time limit unit 67 notifies the level comparison / selection unit 66 of the arrival of the time limit. Therefore, the level comparison / selection unit 66 compares the level values of the response signals stored in the response signal register 65 ( In step 135), one of the response signals having the highest level value is selected (step 136) and output. The timed output from the timed unit 67 is also notified to the response signal detection unit 64, and stops detecting the response signal.

The zone number extracting unit 68 receives the response signal output selected by the level comparing and selecting unit 66 and extracts the zone number (procedure 137), and outputs the zone number as the output of the zone selecting unit 61.

The registration request signal forming section 69 forms a registration request signal using the extraction number output by the zone selecting means 61 as a selected zone number.

In the above embodiment, the response signal formed by the radio base station is:
Although illustrated and illustrated as including the received identification number and the zone number assigned to its own wireless zone, the response signal forming unit measures the reception level of the response request signal received from the wireless telephone and measures the measured level value. And the response signal may be formed. In this case, the level measuring unit is deleted from the zone selecting means of the wireless telephone and is provided in the wireless base station.

In addition, since the response signal transmitted from each wireless base station is transmitted through a common control wireless line, a measure is taken to avoid signal collision. This will be described with reference to FIG.

FIG. 7 is a time chart showing an example of a transmission timing of a response signal transmitted from the radio base station on the control radio line. As shown in FIG. 7, after the radio base station receives the response request signal, the response signal from each radio base station is transmitted on the control radio line by the response signal transmission start time assigned to its own zone number. It can be transmitted without time overlap.
In this example, since time-division calling is performed in the order of the wireless zone numbers 1, 2 to N, information having another meaning can be inserted by omitting the zone number.

Further, when a switching device such as a private branch exchange is applied as the line control device, the change of the switching device can be realized with a small size.

When requesting registration, it has been described that a registration request signal is transmitted by a predetermined operation on the wireless telephone. However, when performing the above-described procedure including the response request signal in the call request signal, it is necessary to re-register each time a call is made. , The chance of being unable to receive a call due to movement can be reduced.

One means for ensuring re-registration by movement is that the wireless telephone has a means for measuring the reception level of the wireless line,
Radio waves from the wireless base station in the registered wireless zone are periodically received and the reception level is measured, and when the reception level is less than a predetermined value, an alarm is given to the wireless telephone holder with a lamp / buzzer or the like,
Automatic registration means for automatically transmitting a response request signal for a registration request may be provided.

〔The invention's effect〕

As described above, the location registration method of the present invention has a configuration in which the zone selection unit of the wireless zone to be registered is provided in the wireless telephone, so that the selection of the wireless zone of the location registration destination can be performed without a line control device. Therefore, there is an effect that the processing load on the line control device can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing an operation procedure of the embodiment, and FIG. 3 is a flowchart showing a first detailed example of a part of the procedure of FIG. FIG. 4 is a block diagram showing an example for realizing FIG. 3, FIG. 5 is a flowchart showing a second detailed example of a part of the procedure of FIG. 2, and FIG. 6 is an example for realizing FIG. FIG. 7 is a time chart showing an example of a signal transmitted from a wireless base station, and FIG. 8 is a block diagram showing an example of a conventional signal. 10, 50, 60 ... wireless telephone, 11, 51, 61 ... zone selection means, 20 ... wireless base station, 21 ... response signal forming unit, 30 ...
Line control device, 31 ... Location registration area, 41 ... Wireless line.

Claims (3)

(57) [Claims] A wireless base station disposed in each of a plurality of wireless zones forming a service area and connected to a telephone network via a line controller, and a wireless line including a commonly used control wireless line. In the location registration method of a wireless telephone to be connected, the wireless telephone forms a response request signal including an identification code given to itself, and transmits a response request signal via a control wireless line; and the wireless base station. When a response signal is received, a response signal that first exceeds a predetermined reception level among the received response signals is selected, and a source wireless base station of the response signal is selected as its own location registration destination. A zone selection means, and a registration request signal transmission for forming and transmitting a registration request signal including its own identification code by designating a source base station of the response signal selected by the zone selection means. Response signal forming means for forming and transmitting a response signal including zone information handled by the wireless base station when receiving a response request signal from the wireless telephone; and Registration request transfer means for adding zone information to the identification code of the wireless telephone included in the registration request signal and transferring the information to the line control device when the registration request signal is received. When receiving a registration request signal transferred from the wireless base station, the identification code of the wireless telephone and the zone information of the wireless base station are extracted from the registration request signal and stored, and a telephone location registration area for registration is provided. A wireless telephone location registration method. 2. A response signal forming means of the radio base station, when receiving a response request signal from the radio telephone, measures a reception level value of the response request signal from the radio telephone, and Forming and transmitting a response signal including the zone information, the zone selecting means of the wireless telephone, when receiving a response signal from the wireless base station, a response request signal reception level value included in the received response signal 2. The position of the wireless telephone according to claim 1, wherein a signal which first exceeds a predetermined reception level value is selected, and a wireless base station from which the response signal is transmitted is selected as its own location registration destination. Registration method. 3. The response request signal included in the response signal among response signals received within a predetermined time when the response signal from the radio base station is received. 3. The location registration method for a wireless telephone according to claim 2, wherein the one having the largest signal reception level value is selected, and the transmission source wireless base station of the response signal is selected as its own location registration destination.