JP3466015B2 - Base station and mobile station - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a base station and a mobile station.
Are those about the, in particular, to an improvement of the simultaneous incoming technique performed on the mobile station group.

[0002]

2. Description of the Related Art In recent years, with the progress of advanced information technology, mobile communication systems excellent in immediacy and functionality have been attracting attention and have been used in various forms such as mobile phones and car phones. Furthermore,
In the field of mobile communication, the current analog system is shifting from a conventional analog system to a digital system in order to economically realize a variety of high-quality information communication while effectively utilizing frequencies.

As a digital mobile communication service, in Japan, PHS (Personal Handyphic) is used.
One system (communication service) has already started in some cities, but PACS (Personal) is used as a wireless communication system that is very similar to PHS.
Access Communications Sys
communication service called PCS (Pers)
onal Communications System
It is standardized as one of m). In PACS, as a wireless connection method, TDMA (Time Division) is used.
The n-Multiple Access method is an FDD (Frequency Div) method as a bidirectional communication method.
The section duplexing method is adopted (hereinafter, referred to as TDMA-FDD method). Note that P
In HS, TDMA-TDD (Time Divisi)
on Duplexing) method is adopted.

By the way, in the mobile communication system,
By grouping the identification numbers of mobile stations, a batch call (also called a group call) in which an incoming call signal is simultaneously sent from the base station is performed to each of a plurality of mobile stations belonging to the same group. For example, JP-A-3-23419
An example is disclosed in Japanese Patent Laid-Open No. 6. In the wireless communication system shown therein, there are a plurality of mobile stations in a wireless zone managed by one base station, and each of these mobile stations belongs to a zone-corresponding group. , Select whether the exchange that manages multiple base stations makes an individual incoming call to call a specific mobile station, or makes a group incoming call to make a simultaneous call to multiple mobile stations that belong to a group. Has become. Then, in the case of making a group incoming call, an incoming call signal is transmitted from the corresponding base station to each mobile station belonging to the group using the radio control channel, and after the connection processing for each mobile station is completed, A calling signal is sent to the mobile station to call them at the same time.

[0005]

However, according to the above-described conventional group termination system, when there is no response to an incoming call from at least one or more mobile stations (for example, the power is turned off or a failure occurs). There is a possibility that the call is being received or the communication is already in progress), and the call reception side is notified of the connection failure, and the process ends. Therefore, if the called party is changed to another mobile station and an incoming call is requested, the calling side must specify the mobile station and make another outgoing call request. It adds extra work burden.

Further, in the conventional group call reception method, a mobile station group is designated to call a plurality of mobile stations all at once. Therefore, naturally, any mobile station may respond. However, in some cases, there is a person in the group who most wants to be answered, and the group incoming call is used to search for the person. In such a case, it is necessary to work on some places where the person is likely to be, but in the conventional group call system, the belonging mobile station can be called only for one group. However, on the calling side, it is necessary to specify another group and make a calling request again, which again imposes an extra work burden on the user.

The present invention has been made in order to solve the above problems, and is a base necessary for effectively calling a predetermined mobile station or a mobile station group by utilizing simultaneous incoming call. It is intended to provide stations and mobile stations .

[0008]

In order to solve this problem, the present invention provides an incoming call information indicating the identification number of each called party and its incoming call priority in a simultaneous incoming call message handled in a wireless communication system. When the incoming call is made to the called party with the first priority of the incoming call before the simultaneous incoming call is made, and there is no response before the predetermined time elapses. Performs the same control even when an incoming call is made to the called party having the second priority of the incoming call, and further, there is a called party having the third priority of the incoming call or lower, the final control is performed. In order to make a simultaneous incoming call, the base station, the mobile station and the exchange perform their respective related operations.

As described above, since the incoming call is made step by step and finally the simultaneous call is made, as compared with the case where the sudden call is made suddenly,
The success rate of the incoming call is increased. Further, by expanding the range of the called party according to the incoming call priority order, it becomes possible to call a specific mobile station or mobile station group with a high success probability.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 is a base station that manages a plurality of mobile stations located within the wireless zone of the own station, wherein the base station is a plurality of callees. Identification number
No. and its incoming call priority are specified as incoming call information.
That simultaneously when receiving an incoming call message, follow the incoming call priority specified by the called information, select the call partner, the
Make an incoming call request by specifying the identification number of the selected called party.
Cormorant a first incoming call requesting means, it is a response from the called party
If there is no incoming call, the next incoming call priority specified in the incoming call information
Next, the next incoming call is selected according to
Second incoming call that requests the incoming call by specifying the identification number of the other party
And a requesting means .

With the above arrangement, in the base station, the simultaneous Chakukogiko message, if the incoming call priority is specified, in accordance with該着call priority, when it times out,該着call priority for the next order of the incoming call partner incoming call is adapted to be applied.

Therefore, when any of the callees does not receive an incoming call response when making a simultaneous incoming call, it is possible to prevent the simultaneous incoming call from immediately failing as in the past. While the response timer measures a predetermined time, an incoming call is made to a specific mobile station or a specific mobile station group selected according to the incoming call priority order. The invention according to claim 2 is the base station according to claim 1.
In addition, at a predetermined time to wait for a response from the called party
A response waiting timer for counting the time, and the first incoming call requesting hand
After the incoming call request is made by the
On the other hand, an instruction hand that instructs to start the timing operation.
The second incoming call request means waits for the response.
Response from the called party before the timer times out
If there is not, select the next called party and select the next
The incoming call request by specifying the identification number of the called party
Is characterized by. The invention according to claim 3 is the same as claim 1.
The incoming call information is the identification of the called party.
The mobile station group identification number can be specified as the number.
If the selected called party is a mobile station group,
The first incoming call requesting means or the second incoming call requesting means
It is characterized in that a simultaneous incoming call is made instead of the incoming call request .

The invention according to a fourth aspect is the base station according to the second aspect, further comprising, in the simultaneous incoming call message, incoming call priorities of 1st to nth as incoming call information. A plurality of callees are designated together with their identification numbers, and the first call requesting means is configured to set the call priority order.
The first called party is selected as the called party and the second party is selected.
The incoming call requesting means is the incoming call partner having the second highest priority of the incoming call.
Is selected as the next incoming call destination, and the
Indicates the start of the counting operation to be, until the response wait timer times out, when there was no response from the called party, in accordance with the timeout of the response waiting timer, for the next incoming call priority of the other party Incoming call is required by specifying its identification number
Perform determined, to instruct the start of the next counting operation of the response waiting timer, later than, after the call request, the incoming call request to the called party until the called priority n-1 position wherein an indication of the time counting operation start for the response timer, and control means for continuous control of the content of repeating until there is a response from the corresponding called party, until before Symbol response wait timer times out
The deposition when there is no response from the call partner, with respect to the incoming call priority first n positions the called party, by specifying the identification number, call
And a third incoming call requesting means for making a request .

According to the above structure, in the base station according to the second aspect of the present invention, in the simultaneous incoming call message, as the incoming call information, a plurality of incoming call destinations having the first to nth incoming call priority orders are provided. If There Ru Tei is specified with the identification number, stepwise each time an incoming call is applied to each incoming call partner with the incoming call priority from the first position until the n-1 position, the response timer the measurement of the predetermined time is performed by, until it times out, if there is no response to the incoming call request, that looks like an incoming call request is made for the next incoming call priority of an incoming call partner.

[0015] The invention described in claim 5 is a base station according to claim 2, further, the wear of the incoming first priority for the previous SL incoming request by the first incoming call request means First link connection processing means for performing link connection processing for establishing a communication channel with the called party when a response is received from the called party, and the communication channel established by the link connection processing means use, the incoming first priority of the called party, and the first call means for calling by designating the identification number, until before Symbol response waiting timer times out, the first call When the called party with the first priority of the incoming call is not off-hooked by the means , the identification number is given to the second party with the second priority of the incoming call according to the timeout of the response waiting timer. Designation Rutotomoni, specifying the communication channels established between the as the communication channel for transition called first priority of the called party, a third simultaneous incoming request means for applying a simultaneous call, It is characterized in that it comprises a.

According to the above configuration, the base station according to the first aspect performs the link connection process when a response is received from the called party having the first priority of the incoming call before the response waiting timer times out. However, if the called party does not go off-hook for the call, it waits for the response waiting timer to time out, and then the called party with the second highest priority in the incoming call is sent simultaneously. An incoming call can be made. At that time, the identification number of the called party to which the simultaneous incoming call is to be made is specified, and the communication channel established with the called party having the first priority in the called order is specified as the communication channel to be transferred. It is supposed to do.

When the called party having the second-ranked incoming call priority completes the transition to the designated communication channel, it makes a general call using the communication channel. . Therefore, it is not necessary to establish a new link to make a simultaneous call.

[0018]

[0019]

[0020]

The invention according to claim 6 is a mobile station wirelessly connected by a base station that manages a wireless zone in which the local station is located, and an incoming call request transmitted from the base station.
Destination can communication channel is specified, and communication channel shifting unit to shift to the <br/> destination communication channel that slot, is transmitted using the destination communication channel from the base station in When the incoming call message is received, the call initiation means for initiating a call to the user by a predetermined calling method and the identification number designated as the notification partner in the connection completion message transmitted from the base station , First judging means for judging whether or not the own station, and when it is judged that the identification number notified by the connection completion message does not belong to the own station, terminates the call being executed. And a call terminating means for performing.

According to the above construction, the mobile station establishes a communication channel with the base station when the mobile station determines that the identification number specified in the received call request message is that of the own station. Link connection processing for. In addition, when it is determined that the identification number designated in the received simultaneous call-in message belongs to the mobile station group to which the own station belongs, the destination communication channel is designated in the simultaneous call-in message. In some cases, continuous reception is performed and a shift is made to the corresponding slot of the shift destination communication channel.

When a general call message transmitted from the base station using the destination communication channel is received, a call is made to the user by a predetermined calling method (for example, ringing a ringer). To start. Further, in the connection completion message transmitted from the base station, when it is determined that the identification number designated as the notified party does not belong to the own station, the call being executed is terminated.

The invention described in claim 7 is a mobile station according to claim 6, wherein the call initiation means further in said paging message received, a specific mobile station or certain mobile station group When the identification number is notified, the second determination means for determining whether or not the identification number belongs to the own station, and the identification number notified in the general calling message is other than the own station. And a calling method changing means for changing the calling method so that the user is called by a method different from the predetermined calling method.

According to the above configuration, in the mobile station according to the sixth aspect , a method different from the predetermined calling method when it is determined that the identification number notified by the general calling message is other than the own station. Then, the calling method is changed so that the user can be called. Therefore, for example, if the calling method is to ring the ringer, change the strength of the ringer sound,
By changing the continuous sound to the intermittent sound, it becomes possible to make the user recognize that the own station is not called preferentially.

[0026]

[0027]

[0028]

[0029]

[0030]

FIG. 1 shows an embodiment of the present invention.
It will be specifically described with reference to FIG. (Embodiment 1) FIG. 1 is a schematic diagram showing an example of the configuration of a wireless communication system according to the present invention. The wireless communication system shown here is an exchange 2 which is wire-connected to the communication network 1.
And a plurality of base stations that are connected to the exchange 2 by wire and are managed (only the base stations 3, 4, and 5 are shown here as representatives).
And a plurality of movable mobile stations located within a wireless zone managed by any one of the base stations and wirelessly connected to the base station.

Here, six mobile stations, mobile stations 11 to 16, are located in the radio zone 6 managed by the base station 3, and the mobile stations 11 to 13 are moved to a mobile station group or to a mobile station group. The stations 14 to 16 belong to the mobile station group, respectively. Then, SU11 to SU16 are assigned to the mobile stations 11 to 16 as mobile station identification numbers,
G1 and G2 are assigned as mobile station group identification numbers to the mobile station group and.

As the communication network 1, a telephone network, ISDN (Integrated Services Digital Network), and other communication lines are used. Further, the exchange 2 always keeps track of which base station under its own control has moved to the wireless zone managed by each mobile station to which the wireless connection service is provided. ing. For each mobile station,
It is not always necessary to belong to any group, and all mobile stations located in each wireless zone may be included in the group. Furthermore, a plurality of mobile stations belonging to the same group may be distributed and arranged over a plurality of wireless zones.

Regarding the wireless connection system between the base station and each mobile station, as described above, the TDMA-TDD system is adopted in the PHS of Japan and the TDMA-FDD system is adopted in the PACS of the United States. Has been done. FIG. 2 is a block diagram showing the configuration of each base station shown in FIG. The base station includes a transmitting / receiving antenna 21, a radio control unit 22, a communication control unit 23, a modulation unit 24, and a demodulation unit 2.
5, an input unit 26, an output unit 27, and a line control unit 28.

The radio controller 22 has a function of transmitting the modulated data supplied from the modulator 24 on a radio carrier and transmitting it from the antenna 21, and receives a signal in a predetermined frequency band from the high frequency signals induced in the antenna 21. Have a function.
The communication control unit 23 includes a CPU, a ROM, a RAM, etc.
Control the communication status of the base station. Furthermore, the wireless controller 22
Switches the communication channel in response to a channel switching instruction given from the communication control section 23, and switches between a transmission mode and a reception mode in response to a transmission / reception switching instruction given from the communication control section 23. Has become.

The modulator 24 modulates the transmission data output from the communication controller 23 by a predetermined modulation method (for example,
Quadrature phase modulation), and outputs to the radio control unit 22. Demodulator 2
Reference numeral 5 demodulates the signal received by the wireless control unit 22 and supplies it to the communication control unit 23. The input unit 26 includes a keyboard, a microphone, and the like, and inputs data and voice to the communication control unit 23. The output unit 27 is configured by a magnetic disk device, a display device, a speaker, and the like, and stores, displays, and outputs the data output from the communication control unit 23. The line control unit 28 is connected to the exchange 2 and the communication control unit 23, and controls the connection state and switching of lines.

FIG. 3 is a block diagram showing the configuration of each mobile station shown in FIG. The mobile station has an antenna 3 for both transmission and reception.
1, a wireless controller 32, a communication controller 33, and a modulator 3
4, a demodulation unit 35, an input unit 36, and an output unit 37, and has the same block configuration as that of the base station shown in FIG. 2 except that the line control unit 28 is not provided. .

The radio control section 32 has a function of transmitting the modulated data given from the modulation section 34 on a radio carrier and transmitting it from the antenna 31, and receives a signal in a predetermined frequency band from the high frequency signals induced in the antenna 31. Has functions and
Further, the wireless control unit 32 switches the communication channel in response to a channel switching instruction given from the communication control unit 33, and switches between a transmission mode and a reception mode in response to a transmission / reception switching instruction given from the communication control unit 33. Can be switched.

Further, the communication control unit 33 includes a CPU, RO
M, RAM, etc. are included to control the communication state of the mobile station, and the modulation unit 34 modulates the transmission data output from the communication control unit 33 by the same modulation method as the base station, and the radio control unit 32.
Output to. Further, the demodulation unit 35 demodulates the signal received by the wireless control unit 32 and gives it to the communication control unit 33. Further, the input unit 36 transmits data and voice to the communication control unit 3.
3, and the output unit 37 stores, displays, and outputs the data output from the communication control unit 33.

FIG. 4 is a diagram showing an example of the data structure of a simultaneous call-in message used in the wireless communication system according to the present invention. (A) is a figure which shows the data format about 1 time slot on a downlink radio link in a PACS system. In the PACS system, the TDMA frame has a length of 2.5 msec, and further, one time slot of 312.5 μsec obtained by equally dividing the TDMA frame into eight pieces is used for communication in the downlink direction (from the base station to the mobile station). . And one time slot, as shown in the figure,
14-bit synchronization channel (SYC), 10-bit low-speed channel (SC), 80-bit high-speed channel (FC), and 15-bit error correction code (CR)
C) and a 1-bit power control channel (PCC). The information to be transmitted to the mobile station is transmitted using the high speed channel (FC).

Channel types such as control channels and communication channels are notified using SC. (B)
[Fig. 3] is a diagram showing a data format of the high-speed channel shown in (a), and has a configuration in which all information to be transmitted can be stored in one time slot. As shown in the figure, the 80-bit high-speed channel includes a header section, a data storage section, and a data check section.

(C) is a diagram showing the data format of the high-speed channel when all the information to be transmitted is stored over two time slots. In such a case,
The allocation slot of the preceding high speed channel is composed of a header part and a data storage part, and the allocation slot of the next order is a header part indicating that the data continues,
It is composed of a continuation of the data storage section and a data check section.

(D) is a diagram showing an example of the data format of the data storage section shown in (b) and (c), and stores a plurality of kinds of data, each of which is assigned to n pieces of data 1 to n. The data is stored in the area value (i). (E) is a figure which shows the content of the simultaneous call-in message transmitted using four value (i) -value (i + 3) of the data storage area shown in (d), and wireless communication concerning this invention. It is an example showing the contents of the incoming call message used in the system. Then, "incoming call" is given as the instruction code, "2" is given as the priority level number, "mobile station ID (or mobile station group ID)" is given as the priority level 1, and "other" is given as the priority level 2. “Mobile station ID (or mobile station group ID)” are sequentially stored in the data storage areas value (i) to value (i +
It is stored in 3).

As the instruction code, for example, the simultaneous call-in instruction is "0000 00111111" and the control information re-reception instruction is "0000 0000 000".
1 ”, and the instruction to move to another base station is“ 0000 0
000 0011 ”and the polling instruction is“ 000
The system is set in advance such as "0 0010 0001". The number of priority levels is the number of ranks of mobile stations (or mobile station groups) that the user wants to respond, and priority level 1 and priority level 2 correspond to the response ranks 1st and 2nd, respectively. The selected mobile station (or mobile station group) is shown.

FIG. 5 is a sequence diagram showing an example of a system for simultaneous incoming call to the mobile station group by the base station 3 shown in FIG. Here, when a simultaneous incoming call is made to each mobile station of the mobile station group (G1) located in the wireless zone 6 managed by the base station 3, the mobile station 13 is of priority level 1, The processing sequence when the priority level 2 is a mobile station group is shown.

First, when the exchange 2 receives a simultaneous call-in message from the communication network 1, it issues a call-in request to the base station 3
Notify. The incoming call request includes the mobile station identification number SU13 and the group identification number G1 with priority levels. Subsequently, the base station 3 that receives the incoming call request from the exchange 2 stores the received mobile station identification number SU13 and group identification number G1 as incoming call information with priority level in the storage unit. Further, the base station 3 selects the mobile station 13 as a callee with priority level 1 from the call information stored in the storage unit, and transmits a call signal to the mobile station 13 using the control channel SBC. , Start the response waiting timer T1. And for the mobile station 13,
It is designed to be transmitted a plurality of times at predetermined time intervals. In this case, the incoming call signal includes the identification number SU13 of the selected mobile station 13 and the response waiting timer T1.
Is a timer that waits for an incoming call response from the mobile station requesting the incoming call (here, the mobile station 13). The control channel SBC is a channel that can be received by all the mobile stations 11 to 13 in the wireless zone 6.

After that, if there is no response from the mobile station 13 by the time the response waiting timer T1 times out, the base station 3 waits for the response waiting timer T1 to time out, and then the destination stored in the storage unit is stored. From call information to mobile station 1
The mobile station group having the next highest priority level of 3 is selected as an incoming call destination, and an incoming call signal for the mobile station group is transmitted using the control channel SBC. In this case, the incoming call signal includes the group identification number G1 of the selected mobile station group. Since there is no incoming call information of the next level of the mobile station group, the response waiting timer T1 is not restarted.

(Embodiment 2) FIG. 6 is a sequence diagram showing another example of the simultaneous call-in system to the mobile station group by the base station 3 shown in FIG. To be contrasted. Here, FIG.
The wireless zone 6 managed by the base station 3 is the same as that shown in
When a simultaneous incoming call is made to each mobile station of the mobile station group (G1) located inside the mobile station group, priority level 1 is the mobile station 13 and priority level 2 is the mobile station group. The processing sequence in FIG.

First, when the exchange 2 receives a simultaneous call-in message from the communication network 1, it issues a call-in request to the base station 3
Notify. The incoming call request includes the mobile station identification number SU13 and the group identification number G1 with priority levels. Subsequently, the base station 3 that receives the incoming call request from the exchange 2 stores the received mobile station identification number SU13 and group identification number G1 as incoming call information with priority level in the storage unit. Further, the base station 3 selects the mobile station 13 as a callee with priority level 1 from the call information stored in the storage unit, and transmits a call signal to the mobile station 13 using the control channel SBC. , Start the response waiting timer T1. In this case, the incoming call signal includes the identification number SU13 of the selected mobile station 13. The response waiting timer T1 is a timer that waits for an incoming call response from the mobile station (here, the mobile station 13) that has requested the incoming call, and the control channel SBC is received by all the mobile stations in the wireless zone 6. See Figure 5 for possible channels.
Is exactly the same as the case.

Here, when the incoming call request is accepted, the link connection process using TC1 as the communication channel is executed between the base station 3 and the mobile station 13. Then, an incoming call response signal is transmitted from the mobile station 13 to the base station 3 using the communication channel TC1. This incoming response signal is
The mobile station 13 notifies the base station 3 that the link has been established, and includes the identification number SU13 of the mobile station 13. Subsequently, the base station 3 which has received the incoming call response signal transmits a paging signal to the mobile station 13 using the communication channel TC1. This paging signal is transmitted to the mobile station 13
To the ringing machine, and includes the identification number SU13 of the mobile station 13. And
The mobile station 13, which has confirmed that the received calling signal includes its own identification number SU13, starts calling in response to the first reception of the calling signal.

After that, when the mobile station 13 is not off-hook by the time the response waiting timer T1 times out, the base station 3 holds the response in the storage unit when the response waiting timer T1 times out. Based on the incoming call information, the mobile station group, which is the next priority level of the mobile station 13, is selected as the incoming call destination, and a simultaneous incoming call signal for the mobile station group is transmitted using the control channel SBC. In this case, the simultaneous call-in signal includes the group identification number G1 of the selected mobile station group and the mobile station 13 already.
The channel number TC1 is included in order to specify the communication channel TC1 which is currently being called by the mobile station 13 and has been established as a link with the communication channel TC1. Further, since there is no incoming call information of the next level of the mobile station group, the response waiting timer T1 is not restarted.

On the other hand, the mobile stations 11 and 12 belonging to the mobile station group receive the simultaneous incoming call signal from the base station 3 and include the mobile station group identification number G1 to which the local station belongs. If both of them are confirmed, the channel switching is performed according to the continuous reception sequence so that the communication channel of the transfer destination is TC1, and the communication channel TC1 is moved to a predetermined slot position.

In the base station 3, the control channel SBC
After sending the simultaneous call-in signal using,
Therefore, the paging signal is transmitted to all the mobile stations 11 to 13 using the designated communication channel TC1. In this case, the paging signal includes the mobile station 1 having the priority level 1
3 and the mobile station group identification number G1
And are included. Then, among the mobile stations that have received the general ringing signal, the mobile station 11 that is not calling.
And the mobile station 12 starts calling.

In this call, the ringing state of the ringer of the mobile station 13 having the priority level 1 and the ringing state of the ringers of the other mobile stations 11 and 12 having the priority level 2 are made different. (For example, the ringer ringing state when the priority level 1 is set to lean / lean, and the ringer ringing state when the priority level 2 is set to Chile / lean
Chile and Chile. ), The user can be made aware of the priority level of the mobile station.

Then, the mobile station 1 responds to such a call.
When 1 goes off-hook, the connection response signal is transmitted from the mobile station 11 to the base station 3 using the communication channel TC1. This connection response signal includes the mobile station identification number SU11 that identifies the mobile station. Then, the base station 3 which has received the connection response signal transmits a connection completion signal to each of the mobile stations 11 to 13 using the communication channel TC1 and notifies the exchange 2 that the connection is completed. In this case, the connection completion signal and the connection completion notification include the mobile station identification number SU11 included in the received connection response signal.

On the other hand, the mobile stations 11 to 13 receive the connection completion signal transmitted from the base station 3, take out the mobile station identification number SU11 included in the received connection completion signal, and identify themselves. Determine if it is a mobile station identification number. Then, the mobile station 11, which is the identification number of its own station, starts communication using the communication channel TC1. For the mobile station 12 and the mobile station 13 that are not the identification numbers of their own stations, the call being executed is terminated and the control channel SBC
Move to.

(Embodiment 3) FIG. 7 is a sequence diagram showing an example of a simultaneous call-in method for a mobile station group and by the base station 3 shown in FIG. Shows the incoming call processing sequence,
This is to be compared with the processing sequence shown in FIG. Here, the wireless zone 6 managed by the base station 3 shown in FIG.
When a simultaneous incoming call is made to each mobile station group (G1) and mobile station group (G2) located within the mobile station group (G1), priority level 1 is the mobile station group (G1), The processing sequence in the case where level 2 is a mobile station group is shown.

First, when the exchange 2 receives a simultaneous call-in message from the communication network 1, it sends a call-in request to the base station 3
Notify. The incoming call request includes the group identification numbers G1 and G2 with priority levels. Then, in the base station 3 that receives the incoming call request from the exchange 2,
The received group identification numbers G1 and G2 are stored in the storage unit as incoming call information with a priority level. Further, the base station 3 selects a mobile station group as a callee with priority level 1 from the call information stored in the storage unit, and transmits a call signal for the mobile station group using the control channel SBC. , Start the response waiting timer T1. In this case, the incoming call signal includes the identification number G1 of the selected mobile station group. Also, the response wait timer T1
Is a timer that waits for an incoming call response from any mobile station belonging to the mobile station group that requested the incoming call, and the control channel SBC is a channel that all mobile stations in the wireless zone 6 can receive. This is exactly the same as in the case of FIG.

Here, when the mobile station 13 accepts the incoming call request, the link connection process using TC1 as the communication channel is executed between the base station 3 and the mobile station 13. Then, the mobile station 13 transmits an incoming call response signal to the base station 3 using the established communication channel TC1. The incoming call response signal notifies the base station 3 that the mobile station 13 has established a link, and includes the identification number SU13 of the mobile station 13. Subsequently, the base station 3 which has received the incoming call response signal transmits a paging signal to the mobile station 13 using the communication channel TC1. This paging signal instructs the mobile station 13 to ring the ringer, and the identification number S of the mobile station 13 is sent.
U13 is included. Then, the mobile station 13, which has confirmed that the received calling signal includes its own identification number SU13, starts ringing by ringing a ringer.

When the mobile station 12 receives the incoming call request, the link connection process using TC2 as a communication channel is executed between the base station 3 and the mobile station 12. Then, using the established communication channel TC2,
An incoming call response signal is transmitted from the mobile station 13 to the base station 3. The incoming call response signal includes the identification number S of the mobile station 12.
U12 is included. Subsequently, the base station 3 that has received the incoming call response signal transmits a paging signal to the mobile station 12 using the communication channel TC2. The calling signal includes the identification number SU12 of the mobile station 12.
Then, the mobile station 12, which has confirmed that the received calling signal includes its own identification number SU12, starts ringing by ringing a ringer.

After that, if the mobile station 12 and the mobile station 13 are not off-hook by the time the response waiting timer T1 times out, the base station 3 stores the response waiting timer T1 according to the occurrence of the timeout. From the incoming call information held in the section, the mobile station group having the next priority level of the mobile station group is selected as the incoming call destination to be added, and the mobile station 11 belonging to the mobile station group to which the call has not been started yet is selected. , A simultaneous call-in signal to each of the mobile stations 14 to 16 belonging to the selected mobile station group is transmitted using the control channel SBC.

In this case, the paging signal includes the group identification number G1 of the mobile station group, the group identification number G2 of the mobile station group, and the paging channel (that is, the communication channel used to make the paging). The communication channel (here, TC1) which should be set is included. Here, the established communication channel TC1
Regarding which one of the communication channels TC2 and the communication channel TC2 should be used as the simultaneous call-in channel, for example, the communication channel having a better radio wave reception state is selected.

Further, the base station 3 instructs the mobile station 12 which is currently calling to shift to the communication channel TC1 which is the simultaneous incoming call channel, using the already established communication channel TC2. Since there is no incoming call information of the next level of the mobile station group, the response waiting timer T1 is not restarted. On the other hand, when the mobile station 11 belonging to the mobile station group receives the simultaneous call-in signal from the base station 3, the mobile station 12 belonging to the same group receives the simultaneous call-in channel from the base station 3. When the shift instruction signal is received, channel switching is performed according to the continuous reception sequence, and the channel shifts to the predetermined slot position in the communication channel TC1. Mobile stations 14 to 1 that also belong to the mobile station group
In 6 as well, when the simultaneous call-in signal from the base station 3 is received, channel switching is performed in accordance with the continuous reception sequence, and a transition is made to a predetermined slot position in the communication channel TC1.

Continuing, in the base station 3, the communication channel TC
1 is used to transmit a paging signal to each mobile station 11-16. In this case, the paging signal includes the identification number G1 of the mobile station group having the priority level 1 and the identification number G2 of the mobile station group having the priority level 2. Then, among the mobile stations that have received the paging signal, the mobile station 11 that has not yet called,
In 12, 14, 15 and 16, the calling is started respectively.

Then, the mobile station 1 responds to such a call.
When 4 goes off-hook, the connection response signal is transmitted from the mobile station 14 to the base station 3 using the communication channel TC1. This connection response signal contains the mobile station identification number SU14 for identifying the own station. Then, the base station 3 that has received this connection response signal transmits a connection completion signal to each of the mobile stations 11 to 16 using the same communication channel TC1 and notifies the exchange 2 that the connection has been completed. . In this case, the mobile station identification number SU1 included in the received connection response signal is included in the connection completion signal and the connection completion notification.
4 is included.

Further, in each mobile station 11-16, the base station 3
Mobile station identification number S included in the connection completion signal received from the base station 3 after receiving the connection completion signal transmitted from
U14 is taken out and it is judged whether or not it is a mobile station identification number for identifying the own station. Then, the mobile station 14, which has confirmed that it is the identification number of its own station, starts communication using the communication channel TC1. In addition, each mobile station other than the mobile station 14 which has confirmed that it is not the identification number of its own station, terminates the call being executed and shifts to the control channel SBC.

(Embodiment 4) FIG. 8 is a sequence diagram showing an example of a simultaneous call-in method for a mobile station group by the exchange 2 shown in FIG. 1, which is to be compared with the processing sequence shown in FIG. is there. Here, when the mobile station group (G1) located in the wireless zone 6 managed by the base station 3 receives a simultaneous incoming call, the priority level 1 that is most desired to be answered is The processing sequence in the case where the mobile station 13 is the mobile station group whose priority level 2 is the mobile station 13 to be responded to next is shown.

First, when the exchange 2 receives the simultaneous call-in message from the communication network 1, it receives the mobile station identification number SU13.
The group identification number G1 and the priority level are stored in the storage unit as incoming call information. Then, the exchange 2 selects the mobile station 13 which is the called party of priority level 1 from the incoming call information stored in the storage unit, notifies the base station 3 of the incoming call request to the mobile station 13, and responds to the request. The waiting timer T1 is started. The incoming call request in this case includes SU13 which is the identification number of the selected mobile station 13. The response waiting timer T1 is a timer that measures a predetermined set time in order to wait for an incoming call response from the mobile station (here, the mobile station 13) that has requested the incoming call.

Next, the base station 3 receiving the incoming call request uses the control channel SBC to manage the wireless zone 6
The incoming call signal is transmitted to the mobile station 13 inside the mobile station 13 at predetermined time intervals. The incoming call signal in this case includes the identification number SU13 included in the received incoming call request, and the control channel SBC used is a channel that can be received by all mobile stations in the wireless zone 6. ing. Therefore, each mobile station recognizes whether or not an incoming call is made to itself by the mobile station identification number.

On the other hand, in the exchange 2, when there is no response from the mobile station 13 by the time the response waiting timer T1 times out, the incoming call information held in the storage section The mobile station group, which is the next priority level of the mobile station 13, is selected as the called party, and the base station 3 is notified of the incoming call request for the mobile station group. The incoming call request in this case includes the group identification number G1 of the selected mobile station group.
Further, since the held incoming call information does not have the next priority level of the mobile station group, the response waiting timer T1
Is supposed not to restart.

Subsequently, the base station 3 which receives the next incoming call request from the exchange 2 uses the control channel SBC to
The incoming call signal is transmitted to all the mobile stations 11 to 13 belonging to the mobile station group in the managed wireless zone 6.
The incoming call signal in this case includes the mobile station group identification number G1 included in the received incoming call request. (Embodiment 5) FIG. 9 shows a radio zone 6 in which each mobile station belonging to the same mobile station group individually manages two base stations 3 and 4 in the radio communication system shown in FIG.
It is a schematic diagram which shows the example arrange | positioned disperse | distributed to 9 and 9.
Since each mobile station can move freely, there are few cases where it stops in the same radio zone.
Normally, it moves through multiple wireless zones. In such a case, each time the wireless zone is changed, the mobile station registers its own location with the base station.

As shown in the figure, here, in the wireless zone 6 managed by the base station 3, the mobile stations 11 (SU11) and 12 (SU1) belonging to the mobile station group (G1) are included.
2) is located and the wireless zone 9 managed by the base station 4
The mobile station 13 (SU1
3) is located. Under such circumstances, when the exchange 2 receives a simultaneous call-in message for a mobile station group from the communication network 1, each of the base station 3 and the base station 4 receives an individual call message as shown in the flowchart of FIG. On the other hand, the corresponding mobile station actually under its control is designated and a call is made.

FIG. 10 is a flow chart showing the control operation of the exchange 2 shown in FIG. Here, the number of priority levels is 2, the mobile station 13 having the priority level 1 is,
The operation of the exchange 2 when the priority level 2 is the mobile station group will be described. When a simultaneous call-in message is received from the communication network 1 (S1), the base station 4 that manages the mobile station 13 of priority level 1 and the base station 3 that manages the mobile stations 11 and 12 of priority level 2 are determined. After doing
The base station 4 is instructed to make an incoming call to the mobile station 13 (S2. The instruction is the identification number SU1 of the mobile station 13).
3 is included. ), The response waiting timer T1 is started (S3).

When T1 times out without receiving the notification from the base station 4 that the connection of the mobile station 13 has been completed (No in S4, Yes in S5), the base station 3 is notified. Mobile station 11 and mobile station 1
2 is instructed to make an incoming call (S6. This instruction includes
The identification number G1 of the mobile station group is included. ).
Then, after waiting for the notification of the completion of connection from the base station 3 or the base station 4 (in the case of Yes in S7), it shifts to a communication connection process (S8). In step S4, the base station 4
When the notification of the completion of the connection is further received (in the case of Yes), the process continues to the communication connection process (S8).

The wireless communication system according to the present invention has been specifically described above by taking five embodiments as examples.
It goes without saying that the present invention is not limited to the technical contents disclosed therein. The present invention can also be configured as follows. First, the example in which the exchange receives a request for simultaneous call-in from the communication network has been explained.However, the base station requests a call-in for a mobile station group, or the mobile station sends a call-in request for a mobile station group via the base station. It is also possible to make a request for an incoming call, or to request a simultaneous incoming call from the exchange to the mobile station group.

Further, in the incoming call request or the simultaneous incoming call request transmitted from the base station to the mobile station or mobile station group, the number of times of transmission can be specified in the message together. Alternatively, the number of transmissions may be set in advance as a system, and accordingly, it is possible to use a counter instead of the response waiting timer and count the number of transmissions.

Mobile stations belonging to the same group are set to priority level 1, and the groups to which they belong are set to priority level 2.
However, it is also possible to configure mobile stations belonging to other groups to have priority level 1 and priority levels 1 and 2, respectively. It is possible to freely combine the combinations of the items with the items of priority level 2 with each other. Furthermore, it is possible to specify a plurality of mobile stations and a plurality of groups for each priority level.

Further, the number of priority levels may be three or more, and the response waiting timer T1 may be activated each time an incoming call request is made to a mobile station (or mobile station group) of each priority level. I don't care. In that case, regarding the method of determining the priority level, it is basically assumed that the priority level and the calling range are associated with each other, and the range is expanded in order from the narrow calling range. It is not excluded that the range is narrowed from a wide calling range so that the mobile station is assigned the priority level 1 and the mobile station is assigned the priority level 2. That is, it is possible to freely set the priority level according to various usages. Furthermore, when designating a callee with priority level 2 or higher, a new callee may be added and designated.

Further, the response waiting timer may be configured to be restarted when a time-out occurs and a re-incoming call is requested to a mobile station (or mobile station group) of priority level 1. In addition, when the response waiting timer times out, when a simultaneous call request for priority level 2 is transmitted, an instruction message other than the simultaneous call request may also be transmitted. It is possible.

Although the mobile station group identification number is used, the mobile station group identification number may be omitted, and the mobile station group identification number may be used to request incoming calls to all mobile stations in the corresponding radio zone. is there. In that case, it is convenient to prepare a specific ID such as all. In addition, when terminating the incoming call, the exchange may notify the base station of the termination of the incoming call, and the incoming call signal, the general incoming call signal, or the mobile station that receives the general incoming call signal may be used. Alternatively, a signal for rejecting an incoming call may be transmitted to the base station.

[0081]

As described above, according to the present invention, the simultaneous incoming call message having priority levels individually assigned to the mobile station and the mobile station group making the incoming call is handled. In this case, the incoming call side can automatically make an incoming call request stepwise according to the priority level. Therefore, even if there is no response in the mobile station or mobile station group of the first priority level that first requested the incoming call, the simultaneous incoming call is not immediately terminated and the exchange or the base station waits for a predetermined period of time. A simultaneous incoming call is automatically made to a mobile station or mobile station group having the second highest priority level. Therefore, the calling side does not need to redial the call, and the user does not have to be given an extra work load.

Further, since a call to a mobile station having a high priority level can be preferentially performed before a simultaneous incoming call is made, there is a high possibility that a connection can be made with the other party with whom communication is most desired, and the calling range is set in stages. By expanding the communication target, it is possible to call the communication partner with a high probability of success. Further, the exchange determines the priority level and notifies the called party to each base station, so that each base station simultaneously makes an incoming call request to the called party having the same priority level. It becomes possible. Further, since the base station determines the priority level, it is possible to reduce the mutual notification processing between the exchange and the base station, so that it is possible to reduce the usage load ratio of the line.

Further, when a group incoming call is made, by using a communication channel already established between mobile stations having a high priority level, simultaneous paging can be immediately made without establishing a new communication channel. It will be possible. Therefore, it is possible to shorten the time until the call is started and to effectively use the wireless communication resources.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an example of a configuration of a wireless communication system according to the present invention.

FIG. 2 is a block diagram showing a configuration of each base station shown in FIG.

FIG. 3 is a block diagram showing a configuration of each mobile station shown in FIG.

FIG. 4 is a diagram showing an example of a data structure of a simultaneous call-in message used in the wireless communication system according to the present invention.

5 is a sequence diagram showing an example of a system for simultaneous incoming call to a mobile station group by the base station 3 shown in FIG.

FIG. 6 is a sequence diagram showing another example of the simultaneous call-in method for the mobile station group by the base station 3 shown in FIG.

FIG. 7 is a sequence diagram showing an example of a method of simultaneous incoming call to a mobile station group and by the base station 3 shown in FIG.

8 is a sequence diagram showing an example of a simultaneous call-in method for a mobile station group by the exchange 2 shown in FIG.

FIG. 9 is a diagram illustrating a case where each mobile station belonging to the same mobile station group has two base stations 3 in the wireless communication system shown in FIG.
And FIG. 4 is a schematic diagram showing an example in which wireless zones 6 and 9 are separately disposed in wireless zones 6 and 9.

10 is a flowchart showing a control operation of the exchange 2 shown in FIG.

[Explanation of symbols]

1 communication network 2 exchanges 3-5 base stations 6, 9 wireless zone 7 mobile station groups 8 mobile station groups 11-16 mobile stations SBC control channel TC communication channel

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

Claims (7)

(57) [Claims] 1. A base station for managing a plurality of mobile stations located within a wireless zone of the own station, wherein the base station comprises a plurality of identification numbers of called parties and their incoming calls.
The incoming call message whose priority is specified as the incoming call information.
Upon receiving a message, follow the incoming call priority specified by the called information, select the call party, specifies the identification number of the selected call party
The first incoming call requesting means for making an incoming call request and the incoming call information when there is no response from the called party.
Select the next callee according to the specified next call priority.
And specify the identification number of the next called party determined above.
And a second incoming call requesting means for making an incoming call request . 2. The base station according to claim 1, further comprising a response waiting timer for measuring a predetermined time to wait for a response from the called party , and an incoming call by the first incoming call requesting means. After the request is made
Wherein the response waiting timer, and a instructions means that instructs to start the counting operation, the second call request means, the called phase hand until the response wait timer times out If the response from is not the name
, Select the next called party and select the next called party
A base station characterized by making an incoming call request by designating the identification number of . 3. The base station according to claim 1, wherein the incoming call information is a mobile station group as an identification number of a called party.
The identification number of the loop can be specified, and the selected called party
Is a mobile station group, the first incoming call requesting means
Alternatively, in the second incoming call request means, the incoming call request is replaced.
A base station characterized by making simultaneous incoming calls instead. 4. The base station according to claim 2 , further comprising: first incoming call information in the simultaneous incoming call message.
Position and a plurality of call party is specified with the identification number with a call priority up to the n-th position from the first incoming call request means, the incoming first priority
The called party is selected as the called party, and the second incoming call requesting means sets the second incoming call priority rank second.
An incoming call partner, is selected as the next caller instructs the start of the next counting operation of the response waiting timer, until the <br/> response waiting timer times out, no response from the called party when, in accordance with the timeout of the response waiting timer, for the next incoming call priority of the opponent, performs an incoming call request by specifying its identification number, of the response waiting timer next
Comprising instructing the start of counting operation, and later, the incoming call priority n-
A sequence of contents in which the incoming call request to each called party up to the first place and the instruction to start the timing operation to the response timer after making the incoming call request are repeated until there is a response from the corresponding called party. The control means for controlling the incoming call phase before the response waiting timer times out.
When there is no response from the hand, the call-in request is made by designating the identification number of the call- incoming party at the call- incoming priority nth place .
3. An incoming call requesting means of 3 and a base station. 5. A base station according to claim 2, further there is a response from the called first priority of the called party for the previous SL incoming request by the first incoming call request means When
Using a communication channel established with the first link connection processing means for performing a link connection processing for establishing a communication channel, the previous SL first link connection processing means with the該着call partner, wherein The first calling means for calling the called party having the first priority of the incoming call by specifying its identification number and the first waiting means before the response waiting timer times out.
When the called party having the first priority of the incoming call is not off-hooked by the calling means of the above , the identification of the called party having the second highest priority of the incoming call is made according to the timeout of the response waiting timer. A base station , comprising: third incoming call requesting means for making a simultaneous incoming call by designating a number and a communication channel to be transferred. 6. A mobile station wirelessly connected by a base station that manages a wireless zone in which the own station is located, wherein a destination communication channel is specified in an incoming call request transmitted from the base station . can a communication channel shifting unit to shift to the corresponding slot of the migration communication channel, when receiving a paging message sent using the migration communication channel from the base station, the given call method, using Initiation means for initiating a call to the caller, and a first determination for determining whether or not the identification number designated as the notification partner in the connection completion message transmitted from the base station is that of the own station Means, and when it is determined that the identification number notified by the connection completion message does not belong to its own station, terminates the call being executed. A mobile station, comprising: 7. A mobile station according to claim 6, wherein the call initiation means further said paging messages odor received Te, the identification number of a specific mobile station or certain mobile station group is notified Second identification means for determining whether or not the identification number belongs to its own station, and when it is determined that the identification number notified by the paging message is other than its own station. A calling method changing means for changing to call the user by a method different from the predetermined calling method, and a mobile station.