JPH11243577A - Position registering method for radio telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a position registering method for radio telephone set for which the probability for a communication line being disabled in setting with respect to a call is lowered. SOLUTION: To connectors 2A, 2B and 2C at the peak reception level, the registration of a position is requested, while adding a present radio telephone set ID and a communication enable connector number, and when the connector has an idle line, the registration of the position is performed by requesting the registration of the position to a communication control unit(CCU) 1, but when there is no idle line, the number of the connectors having the idle line among the communication enable connectors is selected and returned to a radio telephone set 3 by the CCU 1, and the connector which returned the number again is subjected to the registration of the position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for registering a location of a wireless telephone in a wireless telephone system comprising a plurality of wireless zones.

[0002]

2. Description of the Related Art In a car telephone, a portable telephone, a PHS, a cordless telephone, and the like, a service area is divided into a plurality of overlapping wireless zones, and a connection device for wirelessly connecting to a wireless telephone is provided for each of the divided zones. The line control device connected to the connection device controls the installation of the communication line, connects the wireless telephones to each other and connects to the line of another communication network, and performs communication.

In such a wireless telephone system,
When an incoming call occurs, the location registration indicating whether the wireless telephone for calling the wireless telephone is in the wireless zone is performed, and the line control device receives the incoming call from the connection device installed in the registered wireless zone. A command is sent to the wireless telephone that has made the call, and the bell of the wireless telephone is caused to ring.

[0004] In the conventional location registration of a radio telephone, a radio wave used for a line device or the like is received from a connection device.
The signal of the wireless telephone has been registered in the wireless zone of the connection device receiving the highest signal.

[0005]

As described above, in the conventional location registration of a wireless telephone, location registration is performed in a wireless zone having the highest reception level.

For this reason, the number of location registrations for each wireless zone is large or small, and it is often the case that a communication line cannot be set for a wireless telephone having a large number of registrations even if there is a call.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of registering a position of a radio telephone, which reduces the probability that a communication line cannot be set for a call.

[0008]

According to the first aspect of the present invention, there is provided a connection device provided for each wireless zone for connecting a wireless line to a wireless telephone, and a plurality of the connection devices. In a method for registering a position of a wireless telephone which is configured by a line control device that performs setting control of a connected communication line, the wireless telephone records a reception level from the connection device with which communication is possible, and performs a communication with respect to the connection device having the highest reception level A connection registration request is made by attaching the own wireless telephone ID and the communicable connection device number, and the connection device receiving the position registration request, if there is a free line, sends the wireless telephone ID to the line control device. Make a location registration request in the self-connection device to perform location registration, and if there is no free line, make a location registration request by attaching the communicable connection device number to the line control device. The line control device selects and returns a connection device number having an empty line among the transferred communication-capable connection devices, and the connection device transmits the returned connection device number to the wireless telephone, and returns the connection device number. The wireless telephone makes a location registration request to the connection device returned again.

According to a second aspect of the present invention, the connection device having received the location registration request from the wireless telephone transfers the communicable connection device number received together with the registered wireless telephone ID to the line control device. Determines whether there is a free line in the communicable connection device in the order of the reception level, performs position registration with the connection device number having the vacant line, and returns the registered connection device number to the connection device. Is characterized in that the signal of the wireless telephone is registered by transmitting the returned connection device number to the wireless telephone requesting the signal registration.

The invention according to claim 3 is characterized in that, when there is no free line in the connection device, the connection registration of the wireless telephone is performed to the connection device having the highest reception level.

According to a fourth aspect of the present invention, the location registration of the wireless telephone is performed with respect to the connection device having the lowest call loss among the communicable connection devices.

According to the first aspect of the present invention, the wireless telephone records the reception level from the communicable connection device, attaches the communicable connection device number to the connection device having the highest reception level, and issues a location registration request. If the connection device has a free line, it makes a position registration request to the line control device to register the position. If there is no free line, the communication device can communicate with the line control device. The line control device selects and returns a connection device number having a vacant line among the communicable connection devices, and the wireless telephone makes a location registration request again to the connection device of the returned connection device number. Since the location registration is performed, the probability that a communication line cannot be set for a call can be reduced.

According to the second aspect of the present invention, all the communicable connection device numbers received from the wireless telephone are transferred to the line control device, and the line control device determines that the reception level in the transferred communicable connection device numbers is lower. It is determined whether there is a free line in the descending order, and the location is registered and returned for the connection device number determined to have a free line, and the wireless telephone records the returned connection device number and registers the location. Therefore, the signal registration time can be reduced.

According to the third aspect of the invention, when there is no free line, the signal is registered to the connection device having the highest reception level, so that the communication quality in the case of a call is improved. be able to.

According to the fourth aspect of the present invention, the location registration of the wireless telephone is performed with respect to the connection device having the lowest call loss among the communication-capable connection devices. The probability of being unable to install can be reduced.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a specific example of an embodiment of a method for registering a position of a wireless telephone according to the present invention will be described with reference to the drawings.

FIG. 1 shows a first embodiment of a method for registering a position of a wireless telephone according to the present invention, in which a line control device 1 for controlling installation of a communication line and a wireless telephone 3 provided in a service area. Connection device 2 (2
A, 2B,... 2N) are connected by a communication line 4, and the line control device 1 is connected to a communication line 5 to an external communication network.

The zones A, B,... N indicate the range in which the set communication quality can be obtained when the connection devices 2A, 2B,. , The zones being connected to the connection devices 2A, 2B,.
..2N is installed.

The communication line 4 between the line control device 1 and the connection device 2 has a value corresponding to the traffic between the plurality of wireless telephones 3 in each of the zones A, B,. A line is provided. That is, in the case shown in FIG.
An X line is provided with the connection device 2A, a Y line is provided with the connection device 2B, and a Z line is provided with the connection device 2N. Therefore, X in zone A is connected via connection device 2A.
The connection device 2B can perform communication simultaneously with the Y wireless telephones 3 in the zone B.

A memory unit 11 is provided in the line control device 1. In the memory unit 11, a position registration indicating in which connection device 2 the wireless telephone 3 is located in a zone is recorded. If there is an incoming call via the communication line 5, the connection unit number is known by referring to the position registration data recorded in the memory unit 11, and the wireless line is set up for the registered connection unit. To start communication.

Next, the location registration operation of the first embodiment of the present invention will be described with reference to FIGS. In this description, as shown in FIG. 1, it is assumed that the wireless telephone 3 exists in a portion where the zones A and B of the connection devices 2A and 2B overlap, and a case where the position registration of the wireless telephone 3 is performed will be described. . In this description, the connection device 2A is CSA, the connection device 2B is CSB, and the number of the wireless telephone 3 is PS-X.

In step S1, the radio telephone 3 sets the CS
The radio wave of the control radio line for line transmission transmitted by A is received, and the CSA number and the reception level are recorded in a memory (not shown). The reception level is a preset reception level,
That is, when the communication level is lower than the reception level at which communication quality satisfying a certain standard is obtained, recording is not performed.

In step S2, a CSB number and a reception level are recorded in the same manner. In step S3, the wireless telephone 3 waits for a certain period of time to determine whether or not there is a communicable CS. If the determination is YES, the flow shifts to step S4 to record the CS number and the reception level.

In step S5, the wireless telephone 3 searches for the recorded and received level, and searches for C in descending order of the received level.
The recording of the S number and the reception level is changed.

In step S6, the wireless telephone 3 transmits a location registration request to the CSA having the highest reception level. In this case, the own radio telephone number PS-X and the recorded CS number are transmitted together with the position registration request in descending order.

In step S7, the CSA determines in step S
6, the location registration request, PS-X and CS number transmitted are received, and the process proceeds to step S8 to determine whether or not there is a free line, that is, the X-line of the X-line provided between the line controller 1 Determine whether there is an unused communication line in the
If the determination is YES, the process moves to step S9 and sends a PS-X location registration request to the line controller 1.

In step S10, the line control device 1
The location of the transferred PS-X in the CSA is recorded in the memory unit 11 to perform location registration, and the process proceeds to step S11 to transfer the completion of location registration to the CSA.

In step S12, the CSA determines that PS-X
The location registration completion is transmitted to the wireless telephone 3 of step S1.
Then, the PS-X wireless telephone 3 receives the registration completion and ends the position registration operation.

If it is determined in step S8 that there is no free line, the process proceeds to step S14, where the CSA requests the line controller 1 to determine whether there is a free line in the CSB.

In step S14, since the communicable CSs in step S5 are CSA and CSB, a line state request is made only for the CSB except for the CSA having the highest reception level. If there is
A line status request including these CSs is made.

In step S15, the line control device 1
It is determined whether or not there is a free line with the connection device of the transferred CS number. If the determination is NO, the process proceeds to step S16, where no free line is sent to the CSA.

In step S16, the CSA issues a PS-X registration request to the line controller 1, and thereafter performs the operations in steps S18 to S21, which are the same operations as those described in steps S10 to S13, and performs the location registration operation. To end.

If it is determined in step S15 that the line controller 1 has a free line in CS, step S22 is performed.
To the CSA (CS in this embodiment)
Transfer the availability to B).

At step S23, the CSA determines that PS-X
To the CSB for location registration.

In step S24, PS-X is the CSA having the highest reception level recorded in step S5.
Is deleted, and a location registration request is made to the CSB.

In step S25, the CSB determines that PS-X
Then, the process proceeds to step S26 to determine whether or not there is an available line. If the determination is YES, the process proceeds to step S27 to make a PS-X location registration request to the line controller 1. .

In step S28, the line control device 1
SX is registered with the CSB, and the process proceeds to step S29 to transfer the registration completion to the CSB.

In step S30, the CSB determines that PS-X
When the location registration completion is received, the registration completion is transmitted to PS-X, and in step S31, PS-X receives the registration completion and ends the operation.

When it is determined in step S26 that there is no free line, the same operations in steps S14 to S31 are performed as in the case where it is determined in step S28 that there is no free line.

Next, the operation of the second embodiment of the present invention will be described with reference to FIG. As described above, in the first embodiment, when there is no free line in the connection device having the highest reception level, the connection device having the next highest reception level is accessed again to perform location registration. In the second embodiment, 1
The location registration is performed by accessing once.

Steps S1 to S7 of the second embodiment are the same as those of the first embodiment.
This is the same as the embodiment. In step S40, CSA
Sends the PS-X location registration request to the line controller 1 by transferring all the CS numbers received in step S7.

In step S41, the line controller 1 determines in the order of the transferred CS numbers, that is, in the descending order of the reception level, whether or not there is a free line in the CS. In the case of the highest reception level CS
The location of the PS-X is registered to the number, and the process proceeds to step S42 to transfer the registered PS-X and CS number to the CSA.

In step S43, the CSA transmits the registered CS number transferred in step S42 to PS-X.

In step S44, the PS-X receives the registered CS number, moves to step S45 to record it, and ends the operation.

In the second embodiment, step S41 is performed.
In the above, the CS number is determined based on whether or not there is a free line. However, the CS number may be determined based on a call loss.

That is, when a call is made by the PS-X and a call is received by the PS-X, the communication line 4 (X in the case of the connection device 2A, provided between the line control device 1 and the connection device 2).
The line may be used for communication and may be determined based on a call loss rate at which new communication cannot be performed.

Assuming that the call volume between the line control device 1 and a certain connection device 2 is a and the number of communication lines is n lines, the call loss rate En is expressed by En = (an / n!) / $ 1 + a / 1! + A2 / 2! +
... + an / n! ｝

In the above equation, the communication line n connecting the line control device 1 and the connection device 2 is known, and the traffic a changes according to the number of registered signals.

When the traffic volume a is the traffic volume a0 when the number of location registrations is 1, when the number of location registrations is k, the traffic volume is ka0.
Does not. Therefore, the traffic volume am with respect to the number of location registrations m is determined in advance by traffic prediction and experiments, and is substituted into the above equation.
The result of calculating the nm is recorded, and the call loss rate when the number of location registrations is increased by 1 in the connection device 2A and the call loss rate when the number of position registrations is increased by 1 in the connection device 2B are read out and the position is determined in the connection device with the smaller call loss rate. Register.

This makes it possible to reduce the probability that communication cannot be performed because there is no communication line when a call is generated.

[0051]

As described above, according to the first aspect of the present invention, it is possible to provide a method of registering a position of a wireless telephone which can reduce the probability that a communication line cannot be set for a call. it can.

Further, according to the second aspect of the present invention, it is possible to provide a wireless telephone location registration method capable of shortening a signal registration time.

According to the third aspect of the present invention, it is possible to provide a method for registering a location of a wireless telephone having good communication quality when a call is made.

According to the fourth aspect of the present invention, it is possible to provide a wireless telephone location registration method capable of reducing the probability that a communication line cannot be set up for a call.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a wireless system according to a first embodiment of a wireless telephone location registration method according to the present invention.

FIG. 2 is an operation flowchart of a first embodiment of a position registration method for a wireless telephone according to the present invention.

FIG. 3 is an operation flowchart of a first embodiment of a wireless telephone location registration method according to the present invention.

FIG. 4 is an operation flowchart of a first embodiment of a position registration method for a wireless telephone according to the present invention.

FIG. 5 is an operation flowchart of a first embodiment of a position registration method for a wireless telephone according to the present invention.

FIG. 6 is an operation flowchart of a second embodiment of the location registration method for a wireless telephone according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Line control device 2A, 2B ... 2N connection device 3 Radiotelephone 4, 5 Communication line 11 Memory part

Claims (4)

[Claims] 1. A wireless telephone comprising: a connection device provided for each wireless zone for connecting a wireless line to a wireless telephone; and a line control device connected to a plurality of the connection devices and configured to control setting of a communication line. In the position registration method, the wireless telephone records a reception level from the communicable connection device, and attaches a wireless communication device ID and a communicable connection device number to the connection device having the highest reception level, and issues a position registration request. Performed, the connection device receiving the location registration request,
If there is a free line, the position control request is sent to the line control device at the self-connection device of the wireless telephone ID to perform position registration. Requesting a location registration with the communicable connection device number, and the line control device selects and returns a connection device number having an empty line among the transferred communicable connection devices, and the connection device A location registration method for a wireless telephone, characterized by transmitting the returned connection device number to the wireless telephone, and making the returned wireless telephone make a location registration request to the returned connection device again. 2. The connection device that has received a location registration request from the wireless telephone transfers a communicable connection device number received together with a registered wireless telephone ID to the line control device.
The line control device determines whether there is an empty line in the communicable connection device in the descending order of the reception level, performs position registration with the connection device number having the empty line, and returns the registered connection device number to the connection device. 2. The method according to claim 1, wherein the connection device transmits the returned connection device number to the wireless telephone requesting the signal registration and registers the signal of the wireless telephone. 3. The wireless communication system according to claim 1, wherein when there is no free line in said connection device, the connection registration of the wireless telephone is performed with respect to the connection device having the highest reception level. Phone location registration method. 4. The signal for a wireless telephone according to claim 2, wherein the location registration of the wireless telephone is performed with respect to a connection device having the lowest call loss among the communicable connection devices. Registration method.