JP2856153B2 - Intermittent reception system and mobile communication station - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intermittent reception system on a mobile communication station side in mobile communication and the like, and more particularly to an intermittent reception system using a past incoming call history and a mobile communication station provided with the system. .

[0002]

2. Description of the Related Art A mobile communication station in mobile communication or the like includes:
Operation or operation with a battery is indispensable in order to secure mobility, which is the most significant feature of the battery. In addition, in order to secure a longer operation time, it is necessary to employ a reception method that suppresses power consumption. In order to satisfy such a demand, an intermittent reception method is employed in current mobile communication and the like.

In the conventional intermittent reception system on the mobile communication station side in mobile communication or the like, the monitoring control unit monitors the incoming call at the mobile communication station, and when the amount of incoming calls decreases, the intermittent reception period extension signal is output. When the number of incoming calls increases, a release signal is transmitted to adjust the period of intermittent reception.
As described in Japanese Patent Application Laid-Open No. 96529, the cycle of intermittent reception is adjusted depending on the time zone in which there are many incoming calls and the time zone in which there are few incoming calls.

[0004]

However, in the above-described intermittent reception system on the mobile communication station side in the conventional mobile communication or the like, immediately after the number of incoming calls at the mobile communication station temporarily increases, the number of incoming calls increases. There is a problem that it is not effective against occurrence of a bursty incoming call that is customary by individuals such as a reduced number of incoming calls.

In the above-mentioned conventional intermittent reception system on the mobile communication station side in mobile communication or the like, as described in the above-mentioned Japanese Patent Application Laid-Open No. 4-96529, a time period when there are many incoming calls and a time when there are few incoming calls are used. Even if the intermittent reception cycle is adjusted depending on the band, the time zone and the frequency of incoming calls differ for each individual, so that there is a problem that the daily incoming tendency of each individual cannot be appropriately reflected.

Accordingly, the present invention has been made in view of the above-mentioned problems, and provides a discontinuous reception system and a mobile communication station which can improve the conventional discontinuous reception system and secure a longer operation time. The purpose is to do.

[0007]

[SUMMARY OF] To achieve the above object, the present invention provides a mobile communication network composed of one or more fixed communication station and a plurality of mobile communication station, said mobile communication station but a means for recording the received call history in the storage unit for each time of day, past incoming call history data consisting of frequency of incoming call for each time zone in the mobile communication station
Based on data, means for determining the period of intermittent reception between the mobile communication station and the fixed communication station, while the determined
Means for transmitting the period of missing reception to the fixed communication station, the free
Providing an intermittent reception scheme, wherein no possible.

Further, the present invention provides a mobile communication station that performs intermittent reception with one or a plurality of fixed communication stations, a receiving unit that receives an incoming call, and a history updating unit that updates an incoming call history in each time zone. A history recording unit for recording an incoming call history, an intermittent reception cycle determination unit that determines an intermittent reception cycle based on information recorded by the history update unit in the history recording unit, and the intermittent reception cycle determination unit Determined intermittent reception
A transmission unit for transmitting the period of the communication to the fixed communication station; and a next day based on the period determined by the intermittent reception period determination unit.
A mobile communication station including an internal timer for performing intermittent reception and a discontinuous reception execution unit.

[0009]

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

Referring to FIG. 1, in the preferred embodiment of the present invention, a mobile communication station that performs intermittent reception with one or a plurality of fixed communication stations includes a receiving unit 1 for receiving an incoming call.
And a history update unit 2 for updating the incoming call history in each time zone
A history recording unit 3 for recording an incoming call history; an intermittent reception cycle determination unit 4 for determining an intermittent reception cycle based on information recorded in the history recording unit 3 by the history update unit 2; It includes a transmitting section 5 for transmitting the cycle determined by the section 4 to the fixed communication station, an internal timer 6 for performing intermittent reception based on the cycle determined by the intermittent reception cycle determining section 4, and an intermittent reception execution section 7. History update unit 2, history recording unit
3, intermittent reception cycle determination unit 4, internal timer 6, and intermittent reception
The communication execution unit 7 forms the intermittent reception control circuit 11 .

Here, the control signal transmitted from the fixed communication station to the mobile communication station is a basic frame (BFR).
And superframe (SFR (= BFR × l: l =
Integer)), but the value of the integer l is determined based on the past incoming call history on the mobile communication station side. Thus, the intermittent reception cycle can be continuously adjusted for each individual from a time zone in which the call volume is large to a time zone in which the call volume is small.

That is, the time zone and frequency of receiving an incoming call of each individual are taken as the tendency of each individual every day, and the intermittent reception cycle is determined by each mobile communication station itself based on the past incoming call history. By performing intermittent reception, the battery of the mobile communication station is saved.

As a method of recording the incoming call history of each individual, when the mobile communication station receives an incoming call, the mobile communication station itself records the time zone and the number of incoming calls each time there is an incoming call. Then, the record is updated using the incoming call frequency in the same time period up to the previous day, and is stored as data for creating the intermittent reception cycle on the next day. In this manner, when the data for one day is created, the information is notified to the fixed communication station side, and the fixed communication station side knows the intermittent reception cycle of the next day, so that the mobile station on the next day is notified. The intermittent reception timing between the communication station and the fixed communication station can be synchronized.

At this time, the period of the intermittent reception is adjusted by adjusting the value of the integer l of the superframe (SFR).
The timing can be changed. In addition, since each mobile communication station stores only the updated incoming call history in the memory, the schedule of the intermittent reception cycle of the next day can be easily created only by reading the record.

In the above-described embodiment, the intermittent reception cycle is determined by each mobile communication station itself based on the past incoming call history. However, in another embodiment, for example, fixed communication is performed. The station records the operation form of each mobile communication station (vehicle type such as car, portable / portable device type, ship type, etc.) and the history of incoming calls of each mobile communication station, and ends the day. Sometimes, the intermittent reception cycle at each mobile communication station may be determined based on these recorded information.

[0016]

Next, in order to more specifically describe the above-described embodiment of the present invention, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a part related to intermittent reception of a mobile communication station in one embodiment of the present invention.

Referring to FIG. 1, a part relating to intermittent reception of a mobile communication station includes a receiving unit 1 for receiving an incoming call, a history updating unit 2 for updating an incoming call history in each time zone, and a unit for recording the incoming call history. 3 as a history recording unit, an intermittent reception cycle determination unit 4 that determines an intermittent reception cycle based on information recorded in the memory 3 by the history update unit 2, and a cycle determined by the intermittent reception cycle determination unit 4. To the fixed communication station, an internal timer 6 for performing intermittent reception based on the cycle determined by the intermittent reception cycle determination section 4, and an intermittent reception execution section 7, and the mobile communication station receives an incoming call. Calculates the time zone and the frequency of incoming calls, calculates the average value for each time zone based on the data of past incoming histories that have been recorded, updates the record, and intermittently the next day Schedule the reception cycle Convey Le to the fixed communication station.

Next, the operation of one embodiment of the present invention will be described.

FIG. 2 is a diagram schematically showing a control signal transmitted from a fixed communication station to a mobile communication station in one embodiment of the present invention.

As shown in FIG. 2, in a mobile communication network including one or a plurality of fixed communication stations and a plurality of mobile communication stations, a basic frame (from the fixed communication station to the mobile communication station) is transmitted. A control signal including a BFR and a superframe (SFR (= BFR × 1: 1 = integer)) is transmitted.

Each mobile communication station having the configuration shown in FIG. 1 is an integer l of the superframe (SFR) shown in FIG.
The following method is used to determine the value of.

First, as shown in FIG. 3, in a time zone of the day divided into three-hour units, at which time zone and how often the incoming call is received are recorded.

The first recording day is defined as the first day.
At the moment when the date changes, the schedule of the intermittent reception cycle of the next day is determined, and the next day, intermittent reception is performed based on the determined schedule of the new cycle.

The next day after the date is changed is defined as a second day, and on this second day, as in the first day, the frequency of incoming calls is recorded for each time zone. Updates the record each time as an average value. As a method of calculating the average value, for example, a method of dividing the frequency of incoming calls for each certain time period by the number of days can be adopted. At the end of the second day, the schedule of the intermittent reception cycle on the next day, that is, the third day, is determined based on the data updated on that day. In this way, each time the number of days is updated, the above operation is repeated. FIG. 4 shows a specific example in which the average value of the incoming call frequency is calculated sequentially from the first day.

FIG. 5 is a flowchart for explaining an incoming call history update process for intermittent reception in a mobile communication station in one embodiment of the present invention.

Referring to FIGS. 4 and 5, each mobile communication station increases (increments) the number of incoming calls by "1" each time there is an incoming call (step 501) (step 502). .

After the processes of steps 501 and 502 are repeated for a certain time zone, when the process shifts to the next time zone (step 503), for the time zone before the shift,
The average of the number of incoming calls in the same time period up to that day is taken (step 504).

After recording this average value in a predetermined area of the memory (step 505), the system waits for the next incoming call (step 506). When the next incoming call is received, it is determined whether or not the date has changed. Then, until the date changes, that is, until the record is updated for all the time periods of the day, the above-described steps 502 to 50 are performed.
Step 7 is repeated.

On the other hand, if it is determined in step 507 that the date has changed, the schedule of the intermittent reception cycle for the next day is determined, and the information is also notified to the fixed communication station (step 507). 508) On the day after the date has changed, intermittent reception is performed between the fixed communication station and the mobile communication station based on the determined new cycle.

FIG. 6 is a diagram showing a specific example of the case where the schedule of the intermittent reception cycle is determined in step 508. The intermittent reception cycle on the 31st day is assigned based on the update data on the 30th day. An example of the case is shown.

Referring to FIG. 6, first, an upper limit value lmax and a lower limit value lmin of an integer 1 that defines the length of a superframe (SFR) are determined, and then, lmin <l <lma.
In the range of x, the length of the superframe (SFR) is determined by selecting a value of l that matches the average value of the number of incoming calls in a certain time zone and lowers the operation rate of the mobile communication station. . Here, “lowering the operating rate” means that when the interval of the normal waiting state for incoming calls is “1”, the waiting state for incoming calls is proportional to the reciprocal multiple of the average value of incoming calls in a certain time zone ( (Intermittent reception). If the average value is larger than a certain value, the intermittent reception cycle 1 is set to lm.
When the average value is smaller than a certain value, the intermittent reception cycle 1 is set to lmax.

That is, when the above relationship is expressed as a mathematical expression, the following expressions (1) to (3) are obtained. l (t) = k · (1 / m (t)) (a <m (t) <b) (1) = lmin (m (t) <a) (2) = lmax (m (t) > B)… (3)

In the above equations (1) to (3), t is a time zone number, k is a proportional constant, m (t) is an average value of the number of incoming calls for each time zone, and a is m (t) Lower limit of b
Represents the upper limit of m (t).

As described above, by controlling the value of the integer l based on the above equations (1) to (3) and determining the intermittent reception cycle for each time zone, the past incoming call history is effectively used. You can set a schedule.

[0036]

As described above, according to the present invention,
In the intermittent reception at the mobile communication station side in the mobile communication, the cycle of the intermittent reception is automatically changed according to the frequency of incoming calls, so that the power at the mobile communication station side can be used efficiently.

Further, according to the present invention, a relatively simple method (algorithm) for determining the schedule of the intermittent reception cycle can be adopted, so that the present invention can be extremely easily implemented. There is also an advantage that a system can be constructed.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a part related to intermittent reception of a mobile communication station according to an embodiment of the present invention.

FIG. 2 is a diagram schematically showing a control signal transmitted from a fixed communication station to a mobile communication station in one embodiment of the present invention.

FIG. 3 is a diagram showing an example in which a day is divided into a plurality of time zones in one embodiment of the present invention.

FIG. 4 is a diagram showing a specific example in a case where an average value of an incoming call frequency is sequentially calculated from the first day in one embodiment of the present invention.

FIG. 5 is a flowchart for explaining an incoming call history update process for intermittent reception in a mobile communication station in one embodiment of the present invention.

FIG. 6 is a diagram showing a specific example in the case of determining a schedule of an intermittent reception cycle in one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receiving part 2 History update part 3 Memory (history recording part) 4 Intermittent reception cycle determination part 5 Transmission part 6 Internal timer 7 Intermittent reception execution part

──────────────────────────────────────────────────続 き Continued on 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] 1. A mobile communication network comprising one or a plurality of fixed communication stations and a plurality of mobile communication stations, wherein the mobile communication station stores an incoming call history for each time zone of a day. and means for recording the parts, excessive consisting reception frequency for each time zone in the mobile communication station
Based on removed by the incoming call history data, means for determining the period of intermittent reception between the transfer <br/> body communication station and the fixed communication station, the cycle of the intermittent receiving the determined to the fixed communication station Submit
Discontinuous reception scheme, characterized in that it comprises means for the. 2. A mobile communication station that performs intermittent reception with one or more fixed communication stations, a receiving unit that receives an incoming call, a history updating unit that updates an incoming call history in each time zone, and an incoming call history. a history recording unit for recording, the discontinuous reception period determining unit that determines the cycle of the intermittent reception on the basis of the information the record update section is recorded in the history recording unit, an intermittent determined by the discontinuous reception period determining section A transmitting unit for transmitting a period of reception to the fixed communication station , based on a period determined by the intermittent reception period determining unit
A mobile communication station comprising: an internal timer for performing intermittent reception on and after the next day; and an intermittent reception execution unit.