JP2785760B2 - Intermittent reception system for mobile communication systems - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intermittent reception system of a mobile communication system, and more particularly, to intermittently turning on / off power supplied to a receiver in order to reduce power consumption of a mobile terminal during standby. The present invention relates to an intermittent reception method for a mobile communication system in which the timing value of the intermittent reception timing for performing the above operation can be appropriately changed by operating a mobile terminal.

[0001]

2. Description of the Related Art The smaller the size of a mobile terminal in a mobile communication system is, the more convenient and desirable the portability is. However, the size of a battery for supplying operating power to the mobile terminal is also large. It is reduced in proportion to it,
As a result, there is a problem that the battery capacity is reduced and the use time is shortened. In order to solve such a problem, power consumption is reduced by intermittently turning on the power of the receiver without leaving the power of the receiver turned on when the mobile terminal is not used for direct communication. The intermittent reception method is adopted.

A conventional intermittent receiving method is disclosed in
There is a technique disclosed in JP-A-8626 and JP-A-5-75523. This technology divides the mobile terminal into a plurality of groups, and the wireless base station periodically and periodically transmits information corresponding to each group, and the mobile terminal allocates the information to itself in synchronization with the transmission cycle of the wireless base station. The power of the receiver is turned on only during the information transmission time period of the cycle corresponding to the given group number, and the presence or absence of the received information is confirmed. Also, Japanese Patent Application Laid-Open No.
Japanese Patent No. 6741 discloses, in addition to the above-described prior art, a receiver non-operation mode having a longer time interval than a normal intermittent reception interval, and an incoming call is received by the mobile terminal while the receiver is in the non-operation mode. A technique is disclosed in which, if there is, the caller is notified that the calling mobile terminal is in the intermittent receiving operation and is in the receiver non-operation mode.

[0003]

In such a conventional discontinuous reception system, discontinuous reception control is performed at a predetermined discontinuous reception timing while synchronizing between a radio base station and a mobile terminal. . Therefore, it is necessary to flexibly cope with a case where a timing value is to be shortened due to an expected incoming call, or a case where an urgent incoming call is not expected but a longer timing value is desired to reduce battery consumption. There was a problem that can not be.

Further, since the control of the intermittent reception is performed in the radio base station, the mobile station in the receiver non-operation mode during the intermittent reception operation as in the technique disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 3-2066741. In the case where a notification message is sent to the caller in response to an incoming call to the mobile terminal and the mobile terminal waits, the mobile terminal enters a receiver operation mode and waits until the mobile terminal returns a response to the incoming call. There is a problem that the telephone line up to the telephone line is invalidated and held.

[0005]

The intermittent reception system of the mobile communication system according to the present invention can set flexible intermittent reception timing, and can receive an incoming call to a mobile terminal set with a long-time timing value. It is an object of the present invention to provide an intermittent reception system that does not hold a communication line up to a radio base station even for a call.

[0006] Therefore, the intermittent reception system of the mobile communication system of the present invention includes a plurality of mobile terminal units and at least one mobile terminal .
A radio base station and a radio control station that controls the radio base station
And a mobile station located between the radio control station and another communication network.
Communication between terminals and between mobile terminals and terminals of other communication networks
A mobile communication system including a line control station that performs connection processing of signals has the following features.

[0007] mobile terminal, the mobile terminal intermittent and discontinuous reception time setting means for setting a time to receive interval value, the line control station a time interval value which discontinuous reception is set to the intermittent reception time setting unit Has transmission means for transmitting the information included in the location registration information .

[0008] The line control station is transmitted from the mobile terminal.
The time interval value for intermittent reception is used as the identification information of the mobile terminal.
Accumulation that accumulates and accumulates the accumulation time
Means and, when a call is terminated at the mobile terminal,
Time interval value for intermittent reception by the relevant mobile terminal
Reads the time, and based on the current time,
Identify the time when the terminal is in the receiving state and make an incoming call
It has control means.

Further, transmission means of the mobile phone terminal of the shifts
When the power of the mobile terminal is turned on and the location registration area of the mobile terminal
At the time of change, the intermittent reception time interval value set in the intermittent reception time setting means is set in the location registration information, and the
Thereby transmitted as location registration report, when you change the time interval value of intermittent reception, times as a pseudo location registration report by setting the change time interval values to the position registration information
Notify the line control station .

[0010]

[0011]

[0012]

[0013]

[0014]

[0015]

[0016]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a configuration example of a mobile communication system to which a discontinuous reception system according to the present invention is applied. A plurality of mobile terminals represented by the mobile terminal 1 transmit and receive control information and communication information by radio waves to and from the radio base station 2a, 2b or 2c corresponding to the radio base station zone in which each is located. Note that the number of wireless base stations is not limited to three. The radio control station 3a
The wireless base stations 2a, 2b, and 2c are connected by a transmission line and perform control related to transmission and reception of radio waves in each wireless base station. A plurality of similar radio control stations are installed according to the size of the service area of the mobile communication system. The line control station 4 is located between the radio control stations 3a to 3n and another communication network 6 such as a fixed telephone network, and performs communication between mobile terminal and communication between the mobile terminal and another communication network. Line connection control. The home memory 5 connected to the line control station 4 is a database storing subscriber information such as terminal identification number information and terminal position information of each mobile terminal belonging to the mobile communication system.

The location registration operation of the mobile terminal 1 in the mobile communication system configured as described above will be described.

The mobile terminal 1 needs to register the current location in the home memory 5 of the line control station 4 in units of location registration areas. This is because, when there is an incoming call to the mobile terminal, the line control station specifies the location registration area for calling the mobile terminal from the service area, and only the radio base station belonging to the location registration area This is because an operation of transmitting a call signal is performed.

Therefore, when the power of the mobile terminal 1 is turned on or moved, the mobile terminal 1 receives a signal of a radio base station broadcasting a different location registration area code for each location registration area, and The operation of the location registration request is performed when it is determined that the registration area has changed. This location registration request is for sending a location registration signal from the mobile terminal 1 and requesting that the latest location registration area be written to the home memory 5 of the circuit controller 4.

The location information included in the location registration request issued from the mobile terminal 1 is stored in the home memory 5 in association with the terminal identification number of the mobile terminal.

The intermittent reception system of the mobile communication system of the present invention utilizes this location registration request operation.

FIG. 2 is a block diagram showing a configuration example of a part related to the present invention of a mobile terminal used in the intermittent reception system of the mobile communication system according to the present invention.

The transceiver 15 is composed of a transmitter circuit and a receiver circuit for transmitting and receiving various information to and from a radio base station by radio waves. The power supply 11 is a battery that supplies operating power for the entire mobile terminal. A receiver circuit (not shown) of the transceiver 15 is connected to the power supply 1 via the power supply control circuit 13.
1 is connected. The power supply control circuit 13 operates the transceiver 1 at the time interval set by the intermittent reception time setting circuit 12.
5 is to interrupt the power supply to the receiver circuit. The intermittent reception time setting circuit 12 has a configuration in which the intermittent reception time can be arbitrarily set by an external operation. The operation control circuit 14 is a control circuit that controls the overall operation of the mobile terminal.

When the mobile terminal is turned on and put into an operating state, power is supplied to all the constituent circuits including the transceiver 15, and at that time, the radio base station where the mobile terminal is located is located. The location registration area code recognized by the radio base station corresponding to the station zone is received to recognize the location registration area. The operation control circuit 14 edits the position registration signal for the position registration request, and transmits the position registration signal from the transceiver 15 to the wireless base station. When editing the position registration signal, the operation control circuit 14 sets the intermittent reception timing value set in the intermittent reception time setting circuit 12 in addition to the terminal identification number information and the recognized position registration area information given to the mobile terminal. take in.

FIG. 3 is a signal format diagram showing an example of an edited location registration signal, which is composed of location information 21 of a mobile terminal including terminal identification number information and location registration area information, and an intermittent reception timing value 22. ing.

When the operation control circuit 14 transmits the position registration signal, the power supply control circuit 13 interrupts the power supply to the receiver circuit of the transceiver 15 at the time interval set in the intermittent reception time setting circuit 12. Instructs them to do so.

The above-described operation is performed also when the mobile terminal moves and recognizes that the location registration area has changed.

When the operator of the mobile terminal wants to change the intermittent reception time setting, the intermittent reception time setting circuit 12 sets the time change and starts the time change setting operation.

The operation control circuit 14 having received the request for changing the intermittent reception time changes the intermittent reception timing value newly set in the intermittent reception time setting circuit 12 into the above-mentioned position registration signal in the same manner as the position registration request. And send it to the wireless base station. Thereafter, the operation control circuit 14 instructs the power supply control circuit 13 to interrupt the power supply to the receiver circuit of the transceiver 15 at a new time interval set in the intermittent reception time setting circuit 12.

After the mobile terminal transmits the intermittent reception timing value to the radio base station together with the location registration request as described above, the home memory 5 connected to the line control station 4 shown in FIG. FIG. 4 shows an operation sequence in which the reception timing value is registered.

The location registration signal transmitted by turning on the power of the mobile terminal or changing the location registration area is received by the radio base station and sent to the line control station via the connected radio control station.

The line control station identifies the signal, and if the signal is a location registration signal, extracts the terminal identification number of the mobile terminal included in the signal, and associates the location information and the location information and Register the intermittent reception timing value in the home memory. At the time of this registration, the registered time is also set in the home memory.

Thereafter, the mobile terminal performs an intermittent reception operation at the set timing value.

When the intermittent reception timing value is changed by the operation of the mobile terminal, as described above, a location registration signal is issued, and the line control station receiving this signal transmits the terminal identification number notified. , The position information, the changed intermittent reception timing value and the registration time are registered in the home memory. The mobile terminal performs an intermittent reception operation at the changed timing value.

Next, the operation when a call arrives at the mobile terminal in which the intermittent reception timing value set or changed in this way is registered will be described with reference to FIG.

FIG. 5 is a flowchart showing an operation in which the line control station processes an incoming call to the mobile terminal in which the intermittent reception timing value is registered.

When there is a call requesting an incoming call to the mobile terminal (step S1: Yes), the line control station identifies in which location registration area the mobile terminal that receives the call is currently located. For this purpose, the subscriber data corresponding to the terminal identification number of the terminating mobile terminal is read from the home memory (step S2). At the same time, the intermittent reception timing value set by the mobile terminal and performing the intermittent reception operation at the current timing and the registration time in which the value is registered are read out, and the intermittent reception timing value is identified (step S3). .

At this time, if the set intermittent reception timing value is "0" (step S3: No),
The line control station performs an operation of calling a target mobile terminal via all the radio base stations to all the radio base stations corresponding to the identified location registration area (step S7).

On the other hand, when the set intermittent reception timing value is a value larger than "0" (step S3:
Yes), the line control station waits for a time when the target mobile terminal enters a reception state in accordance with the intermittent reception operation of the mobile terminal.

For this purpose, a guidance message is sent to the caller indicating that the called mobile terminal is waiting because the intermittent receiving operation is in progress, and a request for waiting for connection is made (step S4). Then, the line control station counts the timing at which the terminating mobile terminal enters the receiving state by the timer (steps S5 and S6). This waiting time can be identified as the time until the mobile terminal enters the receiving state by dividing the difference between the registration time read from the home memory and the current time by the set timing value, The identified waiting time is subtracted and counted.

When it is determined that the receiving mobile terminal has entered the receiving state by the above-described subtraction counting (step S6: Y).
es), the line control station performs an operation of calling a target mobile terminal via all the radio base stations to all the radio base stations corresponding to the identified location registration area (step S7).

The mobile terminal receiving the incoming call stops the operation of the intermittent reception and enters the talking state.

When the communication is terminated and the disconnection signal or the end signal is transmitted to the radio base station, the mobile terminal restarts the intermittent reception timing operation from that point. When the line control station receives the disconnection signal or the end signal of the mobile terminal via the radio base station, the registration time of the intermittent reception timing value registered in the home memory is set and registered again as the signal reception time.

In this way, when the line control station identifies that the mobile terminal that receives the call is intermittently receiving, it waits at this line control station, so that the line control station sends the call to the radio control station and the radio base station. It does not suspend the transmission line until invalidation. Further, the mobile terminal can arbitrarily set the intermittent reception timing value.

[0046]

As described above, in the intermittent reception system of the mobile communication system according to the present invention, when the power of the mobile terminal is turned on and when the location registration area is changed, the mobile terminal performs line control. To transmit the location registration information to be reported to the station including the discontinuous reception timing value, and when the mobile terminal changes the discontinuous reception timing value,
By transmitting the location registration information including the changed intermittent reception timing value in a pseudo manner, the circuit controller individually manages the intermittent reception timing value set by the mobile terminal together with the location registration area of the mobile terminal. Can be.

Therefore, the mobile terminal can arbitrarily set the intermittent reception timing value, and if the emergency incoming call is expected, the intermittent reception timing is shortened. Can provide a mobile terminal with high flexibility by increasing the intermittent reception timing.

Further, when a call arrives at the mobile terminal during intermittent reception, a queuing is performed at the line control station, so that the communication line from the line control station to the radio control station and the radio base station can be held invalid. Therefore, there is an effect that a mobile communication system with high line use efficiency can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration example of a mobile communication system to which a discontinuous reception system of a mobile communication system according to the present invention is applied.

FIG. 2 is a block diagram showing a configuration example of a part related to the present invention of a mobile terminal used in an intermittent reception system of a mobile communication system according to the present invention.

FIG. 3 is a signal format diagram showing an example of an edited position registration signal.

FIG. 4 is an operation sequence diagram showing a sequence in which an intermittent reception timing value set in a mobile terminal is registered in a home memory connected to a line control station.

FIG. 5 is a flowchart showing an operation in which a line control station processes an incoming call to a mobile terminal in which an intermittent reception timing value is registered.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mobile terminal 2a-2c Radio base station 3a-3n Radio control station 4 Circuit control station 5 Home memory 6 Other communication networks

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) H04B 7/24-7/26 H04Q 7/00-7/38

Claims (2)

(57) [Claims] A mobile terminal and at least one wireless terminal
Radio base station, a radio control station controlling the radio base station,
The located between the radio control station and other communication networks, in the mobile terminal and between the mobile terminal and the other communication networks a mobile communication system communicating consisting connection processing to the line control station between terminals, The mobile terminal has intermittent reception time setting means for setting a time interval value at which the mobile terminal is intermittently received, and a time registration value for the intermittent reception time set in the intermittent reception time setting means, which is registered in the line control station. has a transfer means for transferring is included in the information, the storage time together with the line control station stores a time interval value which intermittent reception is transmitted from the mobile station terminal in association with identification information of the mobile terminal And a storage unit that stores the time interval value at which the mobile unit terminal intermittently receives the call when the mobile terminal receives a call.
Reads a time, intermittent reception method of a mobile communication system characterized by having a control means for identifying and incoming call time which the mobile terminal based on the current time becomes the reception state. 2. The power supply of the mobile terminal,
When entering and when changing the location registration area of the mobile terminal,
The time interval value for intermittent reception set in the intermittent reception time setting means is set in the location registration information, and the location is registered with the line control station.
Time interval for intermittent reception while transmitting as a report
When you change the value, the times to set the changed time interval value in the location registration information as a pseudo location registration report
The intermittent reception system according to claim 1, wherein the signal is transmitted to a line control station .