JP2004247801A - Mobile communication system, mobile switching station for the system, and mobile station for the system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile communication system wherein the paging period is made variable and set longer so as to reduce the power consumption of a mobile station, thereby extending the operating time of the battery of the mobile station. <P>SOLUTION: A network side varies a paging transmission period 12 and sets the period longer, and the mobile station awaits paging in matching with the period, resulting in increasing a sleep state. Further, the network side informs a caller of a caller side about a connection required time message 14 corresponding to the paging transmission period. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mobile communication system, a mobile switching center of the system, a mobile station of the system, and a paging control method of the system.
[0002]
[Prior art]
As a conventional technique, there is a WCDMA mobile communication system (for example, see Non-Patent Document 1).
[0003]
FIG. 15 shows a general WCDMA network introduced in the above document, FIG. 16 shows a sequence of location registration and authentication, FIG. 17 shows a sequence of an incoming call, and FIG. 2 shows the timing of the operation state. Hereinafter, a conventional mobile communication system will be described with reference to the drawings.
[0004]
As shown in FIG. 15, the mobile station 101 performs wireless communication with the wireless access network 102.
[0005]
The radio access network 102 includes a plurality of radio base stations 103 and an RNC (Radio Network Controller: radio network controller) 104. The RNC 104 is connected to a plurality of radio base stations 103 via a dedicated line or an ATM network, and controls the plurality of radio base stations 103 and the mobile station 101 connected thereto. The RNC 104 is further connected to the core network 105. Generally, a plurality of RNCs 104 exist in the radio access network 102.
[0006]
The core network 105 performs connection control between the radio access network 102 and the telephone network 109, transmission of voice and data, management of subscribers, connection with other telephone networks, and the like.
[0007]
An MSC / VLR (Mobile Switching Center: Mobile Switching Center) 106 of the core network 105 controls a call and also has a function of a VLR (Visitor Location Register) for managing the position of the mobile station 101. An HLR (Home Location Register) 107 manages subscriber information. A GMSC (Gateway Mobile Switching Center: gateway mobile switching center) 108 performs connection processing with another telephone network 109. Generally, a plurality of MSC / VLRs 106 exist in one core network 105.
[0008]
In such a mobile communication system, since the mobile station 101 moves around, its position needs to be registered in the core network 105, and this is a position registration procedure. The location of the mobile station 101 is managed by dividing the wireless access network 102 and in units called LA (Location Area). Usually, a plurality of wireless base stations 103 are grouped into one LA (not shown).
[0009]
FIG. 16 shows a sequence of a location registration and authentication procedure in the mobile communication system. When the mobile station 101 enters a new LA, a new location registration request a1 is sent to the MSC / VLR 106. In response, the MSC / VLR 106 issues a location registration request a2 to the HLR 107. At this time, if necessary, subscriber authentication a3 is performed. Authentication is a procedure for verifying that a legitimate subscriber uses the mobile station 101 that performs location registration.
[0010]
If the authentication is performed correctly, the HLR 107 returns a location registration completion notification a4 to the MSC / VLR 106, and the MSC / VLR 106 returns a subscriber authentication a5 and a location registration completion notification a6 to the mobile station 101. With the above procedure, the MSC / VLR 106 registers the new location of the mobile station 101 as a new LA, and the HLR 107 registers which MSC / VLR 106 this subscriber is in, and the location registration and authentication procedure is completed. I do.
[0011]
FIG. 17 shows a sequence when a call is received in the mobile communication system. First, when a caller makes a call to a specific mobile station (hereinafter, referred to as mobile station A) among the plurality of mobile stations 101, an outgoing call (not shown) is made, and the mobile station 101 An incoming call b1 for calling A is sent to the GMSC 108.
[0012]
The GMSC 108 makes an inquiry b2 to the HLR 107 about the location of the mobile station A, obtains routing information b3 which is route information to the MSC / VLR 106 where the mobile station A exists, and routes the call to the MSC / VLR 106 b4.
[0013]
The MSC / VLR 106 performs paging for calling the mobile station 101 like a paging 1 to a paging 4 at intervals of a predetermined cycle m, and the plurality of mobile stations 101 synchronize with the paging and wait at the same cycle m. Is going.
[0014]
Since the MSC / VLR 106 stores the information of the LA where the mobile station A is located in the above-described procedure, when the MSC / VLR 106 receives the call routing b4, all the radio base stations 103 in the LA where the mobile station A is located are located. Is transmitted to all mobile stations 101 in the LA at the timing of paging 4 with the information of mobile station A in paging 4.
[0015]
Note that this transmission may be performed a plurality of times on the assumption that the mobile station A cannot receive the signal due to reselection or the like occurring during the standby.
[0016]
Then, the mobile station A confirms that the call is directed to itself, and returns a response b5 to the MSC / VLR 106. When the mobile station A sets a control and communication radio channel between the MSC / VLR 106 and the mobile station A b6 Is performed to notify the subscriber of the mobile station A of the incoming call on this wireless channel, and thereafter, a call b7 is started between the subscriber of the mobile station A and the caller.
[0017]
FIG. 18 is a timing chart showing an operation state of the mobile station A. The mobile station A waits at a paging standby cycle m in synchronization with a paging transmission cycle m transmitted from the MSC / VLR 106, and operates at a timing T1. As a result, the paging information is analyzed, and if it is determined that the call is not a call to the user, the sleep state is set during the period T2.
[0018]
This is repeated during standby, and pagings 1 to 3 are not calls to the user. When a call is made to the user in paging 4, the operation state is continued and a call is started.
[0019]
In the operation state of T1, the power consumption is large, and in the sleep state of the period T2, the power consumption is small. Therefore, as the period T2 is shorter (the period m is smaller), the average power consumption of the mobile station 101 during standby is larger, and as the period T2 is longer (the period m is larger), the average power consumption of the mobile station 101 during standby is smaller. Become.
[0020]
[Non-patent document 1]
Yoshio Honda et al., "The Mechanism of Next-Generation Communication," Mainichi Communications Publishing Co., Ltd., April 1, 2002, p. 37-67
[0021]
[Problems to be solved by the invention]
In the above-described paging in the conventional mobile communication system, the paging cycle is a fixed value and the cycle is set to be short, so that the power consumption of the mobile station is large and the use time of the battery of the mobile station is short. was there.
[0022]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problem. To reduce the power consumption of a mobile station and extend battery usage time by making a paging cycle variable and setting the cycle longer. A mobile communication system, a mobile switching center of the system, a mobile station of the system, and a paging control method of the system.
[0023]
[Means for Solving the Problems]
To achieve the above object, a mobile communication system according to the present invention includes a mobile station, a radio access network having a radio base station for performing radio communication with the mobile station, and a connection between the radio access network and a telephone network. And a core network having mobile switching control means for managing the position of the mobile station in connection with the radio base station, wherein the mobile switching control means receives an incoming call to the mobile station. Means for variably setting the transmission cycle of the paging to be notified, and means for transmitting the paging transmission cycle set by the means to the mobile station via the radio access network, wherein the mobile station It has a means for performing a paging standby process in accordance with a paging transmission cycle.
[0024]
A mobile station, a radio access network having a radio base station for performing radio communication with the mobile station, and the mobile station connected between the radio access network and the telephone network and having a connection relationship with the radio base station. A mobile network having mobile switching control means for managing the location of the mobile communication system, wherein the mobile switching control means variably sets a paging transmission cycle for notifying the mobile station of an incoming call; Means for transmitting the paging transmission cycle set by the means to the mobile station via the radio access network, means for generating and storing the paging transmission cycle and a message corresponding to the paging transmission cycle, and the telephone network Receiving an incoming call for the mobile station from the storage means, a message corresponding to the mobile station is stored in the storage means. And means for notifying the originating side of the telephone network reads di-, the mobile station, and performs paging standby process in accordance with the said paging transmission cycle from the mobile switching control means.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0026]
(First Embodiment)
1 to 7 show a first embodiment in which the present invention is applied to a mobile communication system. Since the basic configuration of the mobile communication system is the same as that shown in FIG. 15, the configuration corresponding to FIG. 15 will be described with reference to the same reference numerals.
[0027]
FIG. 1 is a main functional block diagram of the MSC / VLR 106 according to the present invention. The MSC / VLR 106 includes an incoming call history DB 1 that records an incoming call history for each location registration area LA, and a processing unit 2.
[0028]
FIG. 2 is a flowchart showing the operation of the MSC / VLR 106 according to the present invention. When there is an incoming call to the MSC / VLR 106 via the telephone network 109, when and how many times the incoming call is received for each corresponding area LA in the incoming call history DB1. The incoming call history is recorded (step S10).
[0029]
Based on this, as shown in FIG. 3, data recording the number of incoming calls in each time zone of the day is created, and this represents the incoming call frequency (step S11).
[0030]
Next, when the threshold X is set for the number of incoming calls, it is found that the time zone of the number of incoming calls lower than the threshold X is from 1:00 to 5:00, and in this time zone, the paging transmission cycle is set to the long cycle n (step S12). ).
[0031]
Note that the setting of the paging transmission cycle is not limited to the above-described bisecting with the threshold value X, and may be set more finely. In addition, instead of the unit of time, the unit of day may be used. Further, based on the frequency of incoming calls, the system administrator may manually set the paging transmission cycle for each LA.
[0032]
Next, the MSC / VLR 106 issues a request to the HLR 107 to lengthen the transmission cycle of the database built in the HLR 107 in advance (step S13).
[0033]
FIG. 4 shows the contents of the database 10 of the paging transmission cycle in the HLR 107, and is configured to store the paging transmission cycle 12 and the required connection time message 14 corresponding to the location registration area LA11.
[0034]
FIG. 5 shows a sequence for changing the paging transmission cycle of the database 10, and the MSC / VLR 106 can request the setting of the paging transmission cycle for each location registration area LA11 of the database 10. For example, if the data shown in FIG. 3 is data on the area LA1, as shown by reference numeral 13 in FIG. 4, when the paging transmission cycle of the area LA1 is to be changed from the cycle m to the cycle n (m <n), the MSC The / VLR 106 sends the paging transmission cycle change request c1 of the area LA1 to the HLR 107 at time 1:00.
[0035]
The HLR 107 changes the value p of the paging transmission cycle of the location registration area LA1 of the database 10 to a value n. Also, the connection required time message 14 is changed to "Please wait for N seconds until connection" as indicated by reference numeral 15.
[0036]
When the MSC / VLR 106 receives the notification c2 of the completion of the registration of the paging transmission cycle from the HLR 107, the MSC / VLR 106 sends the paging to all the mobile stations 101 in the area LA1 via the radio access network 102, and from the cycle m to the cycle n for paging 4 and thereafter. And perform paging 5 and 6.
[0037]
That is, by including a change notification of the paging transmission cycle in paging 4, the mobile station 101 having received the notification changes the paging standby cycle m to the cycle n as shown in the timing diagram of FIG. Thereafter, it waits for paging from the MSC / VLR 106 at period n. Thereby, the sleep state T2 of the mobile station 101 can be lengthened.
[0038]
The MSC / VLR 106 makes a request to return the paging transmission cycle of the area LA1 to the original cycle m at the time of 5:00, but the processing is the same as described above, and the description is omitted.
[0039]
Here, the change notification of the paging transmission cycle is included in paging 4, but it may be performed using different broadcast channel information.
[0040]
FIG. 7 shows an incoming call sequence of the present invention. When the GMSC 108 receives an incoming call d1 from the telephone network 109, the GMSC 108 sends a mobile station location inquiry d2 to the HLR 107. If it is registered that the mobile station A corresponding to the incoming call exists in the area LA1, the HLR 107 returns the routine information d3 of the MSC / VLR 106 managing the area LA1 to the GMSC 108. This routine information d3 also includes information of "Please wait for N seconds until connection" of the connection required time message 15 of the area LA1.
[0041]
Thereafter, the GMSC 108 routes the call d4 to the MSC / VLR 106 managing the area LA1, and sends out a message "Please wait N seconds until connection" d5 to the calling side.
[0042]
The MSC / VLR 106 performs paging for the area LA1 at a cycle n, and sends the information of the mobile station A into the paging 3 after the routing d4 of the call from the GMSC 108 to the MSC / VLR 106.
[0043]
All the mobile stations 101 in the area LA1 check the paging 3, and the corresponding mobile station A returns a response d6 to the paging 3, whereby the control / communication channel between the MSC / VLR 106 and the mobile station A is transmitted. Is set d7, and thereafter a call d8 is started between the subscriber of the mobile station A and the caller.
[0044]
Here, the timing at which the call is routed from the GMSC 108 to the MSC / VLR 106 is asynchronous with the transmission timing of paging 1 to 3 of the MSC / VLR 106, and the caller is waited for a maximum of the paging transmission period n. The service to the operator is improved by notifying the information d5 of "Please wait for N seconds until connection" to the caller.
[0045]
In the above-described embodiment, the information “Please wait N seconds until connection” is stored in the code 15 corresponding to the location registration area LA1 of the database 10 in the HLR 107, but the HLR 107 is included in the routine information d3. The GMSC 108 may include the information n of the paging transmission cycle and create “Please wait about N seconds before connection” based on the information.
[0046]
In the above-described embodiment, a message such as "Please wait for N seconds until connection" is sent to the caller on the calling side, but may be omitted if the response to the call is not so delayed. .
[0047]
Further, in the above-described embodiment, the paging transmission cycle is changed for each area LA. However, a plurality of areas LA may be collectively performed, or may be changed for all systems regardless of the area LA.
[0048]
According to the mobile communication system of the above-described embodiment, the paging transmission cycle can be lengthened by a simple procedure, whereby the power consumption of the mobile station can be reduced and the battery usage time can be extended.
[0049]
Also, by setting the paging transmission period to a long value, the response to the call is delayed, so by sending a message such as "Please wait about N seconds to connect" to the caller on the calling side, you can feel secure. Can be provided.
[0050]
(Second embodiment)
8 to 14 are diagrams showing a second embodiment in which the present invention is applied to a mobile communication system.
[0051]
FIG. 8 is a main functional block diagram of the mobile station 101 according to the present invention. The mobile station 101 includes an incoming call history DB 21 for recording an incoming call history, a processing unit 22, and a display unit 23.
[0052]
FIG. 9 is a flowchart showing the operation of the processing unit 22. When there is an incoming call to the mobile station 101, the processing unit 22 records the incoming call history of the time and the time of the incoming call in the incoming call history DB 21 (step 20).
[0053]
Based on this, as shown in FIG. 10, data recording the number of incoming calls in each time zone of the day is created, and this represents the incoming call frequency (step S21).
[0054]
Next, when a threshold value X is set for the number of incoming calls, it is found that the time zone of the number of incoming calls lower than the threshold value X is 1:00 to 5:00. It is set as n (step S22).
[0055]
Note that the setting of the paging transmission cycle is not limited to being divided by the threshold value X, and may be set more finely. In addition, instead of the unit of time, the unit of day may be used. Further, the paging standby cycle may be manually set by the operator of the mobile station based on the incoming call frequency.
[0056]
Then, the processing unit 22 creates a connection required time message corresponding to the paging standby cycle and displays the message on the display unit 23 (Step S23).
[0057]
Next, a request is issued to the MSC / VLR 106 to lengthen the standby period of the database built in the HLR 107 (step S24).
[0058]
As shown in FIG. 11, the paging transmission cycle is transmitted every cycle m, and the normal mobile station 101 operates so as to wait for the paging in cycle m. The mobile station 101 operates so as to skip the paging in the middle and wait at the cycle n.
[0059]
FIG. 12 shows a database 30 of the paging standby cycle in the HLR 107, and is configured to store the paging standby cycle 32 and the connection required time message 34 corresponding to the mobile station 31.
[0060]
FIG. 13 shows a sequence of changing the paging standby cycle by the processing unit 22. A specific mobile station (hereinafter, referred to as mobile station 1) in the mobile station 101 changes the paging standby cycle from m to n (m <n). ), The mobile station 1 sends a paging standby cycle change request e1 to the MSC / VLR 106 via the wireless access network 102 at time 1:00, and in response, the MSC / VLR 106 changes the paging standby cycle. The request e2 is sent to the HLR 107.
[0061]
The HLR 107 changes the value m in the database 30 in which the paging standby cycle of the mobile station 1 is recorded to the value n as indicated by reference numeral 33. Further, as shown by reference numeral 35, the content of the message 34 relating to the required connection time is changed to the content "Please wait about N seconds until the connection" according to the cycle n.
[0062]
When the MSC / VLR 106 receives the notification e3 of the completion of the registration of the paging standby cycle from the HLR 107, the MSC / VLR 106 transmits the information of the completion of the registration of the paging standby cycle of the corresponding mobile station 1 in the paging 4 and sends it out.
[0063]
Thereafter, the MSC / VLR 106 sets the transmission cycle of paging to the mobile station 1 to n / m times or more.
[0064]
All mobile stations 101 in the area check paging 4 and the processing unit 22 of the corresponding mobile station 1 changes its own paging standby cycle to cycle n. Thereafter, the mobile station 1 does not perform any operation on paging 5 to paging S during the cycle n, and enters an operating state for paging T after the cycle n. Thereby, the sleep state T2 of the mobile station 1 can be set longer.
[0065]
Similarly, at time 5:00, the mobile station 1 makes a request to return to the original cycle m, but the processing is the same as described above, and a description thereof will be omitted.
[0066]
Here, although the information of the completion of the registration of the paging standby cycle is included in the paging 4 and transmitted, the information may be transmitted using another broadcast channel information.
[0067]
FIG. 14 shows a sequence at the time of an incoming call according to the second embodiment, and shows a case where there is an incoming call to the mobile station 1 whose paging standby cycle has been changed to the cycle n.
[0068]
When the GMSC 108 receives an incoming call f1 for calling the mobile station 1 from the telephone network 109, the GMSC 108 sends an inquiry f2 of the location of the mobile station 1 to the HLR 107. The HLR 107 returns the routine information f3 of the MSC / VLR 106 managing the mobile station 1 to the GMSC 108. This routine information f3 also includes the information of "Please wait for N seconds until connection" of the connection required time message 35 of the mobile station 1.
[0069]
The GMSC 108 routes the call to the MSC / VLR 106 that manages the mobile station 1, and sends out a message "Please wait N seconds until connection" to the originating side as a message.
[0070]
The MSC / VLR 106 performs paging to the area LA1 at intervals of the transmission cycle m. After routing the call f4 from the GMSC 108 to the MSC / VLR 106, the information of the mobile station 1 is included in the paging in the cycle m after the paging 6. And send it.
[0071]
All the mobile stations 101 in the area LA1 are waiting at intervals of the registered paging standby cycle, but the mobile station 1 is waiting at the paging standby cycle n, and the standby timing is the timing of paging 4 and paging T. The call to itself in paging 6 to paging S will be overlooked, confirming the call to itself in paging T and returning a response f6 to the MSC / VLR 106, whereby the MSC / VLR 106 and the mobile station 1 The setting f7 of the control / communication channel is performed between, and thereafter, the communication f8 is started between the subscriber of the mobile station 1 and the caller.
[0072]
Here, the timing of routing f4 from the GMSC 108 to the MSC / VLR 106 and the timing of the paging standby cycle n of the mobile station 1 are asynchronous, and the caller is to wait at most for the paging standby cycle n. The service to the operator is improved by notifying the caller of the information f5 of "Please wait for N seconds until connection" in advance.
[0073]
In the above-described embodiment, the information f5 of “Please wait for N seconds until connection” is created by the HLR 107, but the routine information f3 includes the cycle n of the paging standby cycle information 32, and the GMSC 108 “Please wait about N seconds for connection” may be created based on this.
[0074]
In the above-described embodiment, a message such as "Please wait for N seconds until connection" is sent to the caller on the calling side, but may be omitted if the response to the call is not so delayed. .
[0075]
According to the mobile communication system of the above-described embodiment, the paging standby cycle of the mobile station can be lengthened by a simple procedure, whereby the power consumption of the mobile station can be reduced and the usage time of the battery can be extended.
[0076]
Also, by setting the paging standby cycle to a long value, the response to the outgoing call is delayed, so by sending a message such as "Please wait about N seconds to connect" to the caller on the calling side, you can feel secure. Can be provided.
[0077]
【The invention's effect】
As described above, according to the present invention, the paging transmission cycle is made variable on the network side and the cycle is set long, or the paging standby cycle is made variable on the mobile station side and the cycle is set long so that the mobile station can move. The power consumption of the station can be reduced, and the operating time of the battery can be extended.
[0078]
Also, by setting the paging transmission cycle or the paging standby cycle to a long value, the response to the call is delayed, but by sending a message such as the connection time to the caller on the calling side, a sense of security is provided. be able to.
[Brief description of the drawings]
FIG. 1 is a functional block diagram of a mobile switching center showing a first embodiment of a mobile communication system according to the present invention.
FIG. 2 is a flowchart of the mobile switching center shown in FIG.
FIG. 3 is a diagram showing the frequency of incoming calls of the mobile switching center shown in FIG. 1;
FIG. 4 is a database of a paging transmission cycle of a home location register according to the first embodiment of the mobile communication system according to the present invention.
FIG. 5 is a sequence of changing a paging transmission cycle according to the first embodiment of the mobile communication system according to the present invention.
FIG. 6 is a timing chart of an operation state of the mobile station according to the first embodiment of the mobile communication system according to the present invention.
FIG. 7 is an incoming call sequence showing the first embodiment of the mobile communication system according to the present invention.
FIG. 8 is a functional block diagram of a mobile station showing a second embodiment of the mobile communication system according to the present invention.
9 is a flowchart of the mobile station shown in FIG.
FIG. 10 is a diagram showing the incoming frequency of the mobile station shown in FIG. 8;
FIG. 11 is a timing chart of the operation state of the mobile station shown in FIG. 8;
FIG. 12 is a database of a paging standby cycle of a mobile switching center, showing a second embodiment of the mobile communication system according to the present invention.
FIG. 13 is a sequence of a paging standby cycle change according to the second embodiment of the mobile communication system according to the present invention.
FIG. 14 is an incoming call sequence showing the second embodiment of the mobile communication system according to the present invention.
FIG. 15 shows a general WCDMA network.
16 shows a sequence of network location registration and authentication shown in FIG.
FIG. 17 shows a sequence of an incoming call in a conventional network.
FIG. 18 is a timing chart of an operation state of a conventional mobile station.
[Explanation of symbols]
1 Incoming call history database
2 Processing unit
10 Paging transmission cycle database
11 Record of location registration area LA
12 Record of paging transmission cycle
13 Recording of paging transmission cycle of LA1
14 Connection time message recording
15 Recording of connection time message of LA1
21 Incoming call history database
22 Processing unit
23 Display
30 Paging standby cycle database
31 Record of mobile station
32 Recording of paging standby cycle
33 Record of paging standby cycle of mobile station 1
34 Recording connection time message
35 Recording of connection time message of mobile station 1
101 mobile station
102 Wireless communication network
103 wireless base station
104 RNC
105 core network
106 MSC / VLR
107 HLR
108 GMSC
109 Telephone Network

Claims (15)

A mobile station, a radio access network having a radio base station for performing radio communication with the mobile station, and a location of the mobile station connected between the radio access network and the telephone network and connected to the radio base station. And a core network having mobile switching control means for managing the mobile communication system,
The mobile exchange control means,
A means for variably setting a transmission cycle of paging for notifying the mobile station of an incoming call,
Means for transmitting the paging transmission cycle set by the means to the mobile station via the radio access network,
The mobile station comprises:
Having means for performing a paging standby process in accordance with the received paging transmission cycle,
A mobile communication system, comprising: A mobile station, a radio access network having a radio base station for performing radio communication with the mobile station, and a location of the mobile station connected between the radio access network and the telephone network and connected to the radio base station. And a core network having mobile switching control means for managing the mobile communication system,
The mobile exchange control means,
A means for variably setting a transmission cycle of paging for notifying the mobile station of an incoming call,
Means for transmitting the paging transmission cycle set by the means to the mobile station via the radio access network,
Means for generating and storing a message corresponding to the paging transmission cycle and the paging transmission cycle,
Means for reading a message corresponding to the mobile station from the storage means and notifying the calling side of the telephone network when receiving an incoming call for the mobile station from the telephone network,
The mobile station comprises:
A mobile communication system, wherein paging standby processing is performed in accordance with the paging transmission cycle from the mobile switching control means. The mobile switching control means has an incoming call history database for storing an incoming call history for the mobile station for each predetermined area, obtains a time zone in which the number of incoming calls is small from the incoming call history stored in the incoming call history database, and 3. The mobile communication system according to claim 1, wherein the paging transmission cycle of a band is set to be large. The mobile communication according to claim 1 or 2, wherein the paging or broadcast channel information transmitted from the mobile switching control means to the mobile station includes the paging transmission cycle and transmits the information to the mobile station. system. A mobile station, a radio access network having a radio base station for performing radio communication with the mobile station, and a position of the mobile station connected between the radio access network and the telephone network and connected to the radio base station. And a core network having mobile switching control means,
The mobile station comprises:
A means for variably setting a paging standby cycle for notifying an incoming call transmitted from the mobile switching control means,
Means for performing paging standby processing in accordance with the paging standby cycle,
Means for transmitting the paging standby cycle to the mobile switching control means via the wireless network,
The mobile exchange control means,
Means for storing, for each mobile station, the paging standby cycle, and generating and storing a message corresponding to the paging standby cycle;
Means for reading out a message corresponding to the mobile station from the storage means when receiving an incoming call to the mobile station from the telephone network and notifying the calling side of the telephone network of the message. . The mobile station has an incoming call history database that stores an incoming call history addressed to the own station, obtains a time zone in which the number of incoming calls is small from the incoming call history stored in the incoming call history database, and sets the paging standby cycle in the time zone. The mobile communication system according to claim 5, wherein the mobile communication system is set to be large. The mobile station transmits a request for changing the paging standby period from the mobile station to the mobile switching control unit, and when receiving a notification of completion of registration of the paging standby period from the mobile switching control unit, The mobile communication system according to claim 5, wherein the paging standby process is performed. In a mobile communication system for performing communication between a mobile station and a telephone network via a radio access network and a core network,
The mobile switching center constituting the core network,
A means for variably setting a transmission cycle of paging for notifying the mobile station of an incoming call,
Means for transmitting the paging transmission cycle set by the variable setting means to the mobile station while including the paging or broadcast channel information in the paging or broadcast channel information, and means for performing the paging to the mobile station based on the paging transmission cycle. A mobile switching center for a mobile communication system, comprising: In a mobile communication system for performing communication between a mobile station and a telephone network via a radio access network and a core network,
The mobile switching center constituting the core network,
A means for variably setting a transmission cycle of paging for notifying the mobile station of an incoming call,
A means for generating and storing a message corresponding to the paging transmission cycle set by the variable setting means, and the paging transmission cycle,
Means for notifying the message from the storage means to the mobile station to an originating side of the telephone network when an incoming call for the mobile station is received from the telephone network to the core network;
And transmitting the paging transmission cycle from the storage means to the mobile station by including the paging or broadcast channel information in the paging or broadcast channel information, and having the means for performing the paging to the mobile station based on the paging transmission cycle. A mobile switching center of a mobile communication system. The mobile switching center has an incoming call history database that stores an incoming call history for the mobile station for each predetermined area, and obtains a time zone in which the number of incoming calls is small from the incoming call history stored in the incoming call history database. 10. The mobile switching center of a mobile communication system according to claim 8, wherein the paging transmission cycle is set to be large. Means for variably setting a paging standby cycle for notifying an incoming call transmitted from a mobile switching center constituting a core network;
Means for performing paging standby processing in accordance with the paging standby cycle,
A mobile station of a mobile communication system having: The mobile station comprises:
Means for displaying a message corresponding to the paging standby cycle or the paging standby cycle,
The mobile station of the mobile communication system according to claim 11, further comprising: In a mobile communication system for performing communication between a mobile station and a telephone network via a radio access network and a core network,
The mobile station comprises:
Means for variably setting a paging standby cycle for notifying an incoming call transmitted from a mobile switching center constituting the core network,
Means for performing paging standby processing in accordance with the paging standby cycle,
Means for transmitting the paging standby cycle to the mobile switching center via the radio access network. The mobile station has an incoming call history database that stores an incoming call history addressed to the own station, obtains a time zone in which the number of incoming calls is small from the incoming call history stored in the incoming call history database, and sets the paging standby cycle in the time zone. The mobile station according to any one of claims 11 to 13, wherein the mobile station is set to be large. The mobile station transmits a request for changing the paging standby period from the mobile station to the mobile switching center, and upon receiving a notification of completion of registration of the paging standby period from the mobile switching center, the paging is performed at the paging standby period. The mobile station according to any one of claims 11 to 13, wherein the mobile station performs a standby process.

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