JP5639982B2 - Wireless communication system, exchange, and wireless handset for time adjustment - Google Patents

Description

  The present invention relates to time adjustment control of a wireless slave unit used in a wireless communication system such as a mobile phone or a PHS.

  As background art of this technical field, there is JP-A-2006-33072 (Patent Document 1). In this gazette, "~ provide a time data acquisition method that automatically corrects the time display built in the mobile terminal to an accurate time (standard time) display", " The time display inside the mobile terminal can be automatically corrected to an accurate time without any operation. ”, And these technologies are used in wireless communication systems such as mobile phones and PHSs (Personal Handyphone Systems). In the mobile terminal used, time information is set and used for each terminal, or the time information held by the host device of the wireless communication system is forcibly transmitted to the connected mobile terminal in a unified manner. This is a method of matching time information of portable terminals.

  On the other hand, there exists Unexamined-Japanese-Patent No. 2007-232569 (patent document 2). In this publication, “-providing a radio timepiece capable of performing both standard time display and corrected time display such as advancing by several minutes” is described, and the time information shift ( It can provide accurate information such as advance or delay).

JP 2006-33072 A JP 2007-232669 A

  In the prior art disclosed in Japanese Patent Application Laid-Open No. 2006-33072 (Patent Document 1), it is possible to compensate for time information shifts and variations managed independently by each terminal, but the time information is intentionally used on the wireless slave unit. (For example, if you are moving forward for 5 minutes in the company, etc., or if you are going to advance one to several hours or reverse it by introducing a daylight saving time system or winter time system, etc.) Etc.), it is possible to make it coincide with accurate time information without any operation, but after that, it is necessary to reset the time information again for each wireless slave unit.

  Furthermore, the function setting of the wireless slave unit can be set so that the time information does not match the time information of the host device management. In this case, depending on the hardware accuracy of the wireless slave unit after a long time has elapsed. In any case, resetting the time information was indispensable because of the difference in minutes and seconds.

  Further, in the conventional technique disclosed in Japanese Patent Application Laid-Open No. 2007-232669 (Patent Document 2), a wide range of services are provided by a radio clock, which is provided in a narrow range in a plane unit such as an office or a unit unit, In addition, time information cannot be provided to a three-dimensional space such as an underground shopping center or an underground construction site where a radio clock cannot be received.

  Furthermore, in addition to being unable to provide multiple time information (early or late) in a narrow range, the radio timepiece must be equipped with a radio timepiece receiver inside the wireless slave unit. The number of parts increased due to the hardware configuration of the terminal, and there was a limit to downsizing and cost reduction.

  Furthermore, correcting time information misalignment, that is, sharing time information among a plurality of wireless slave units, is aimed at managing the time information in the system, but the conventional technology subdivides the system. Thus, for example, management for each area (time management for each spatial place) and time management for each wireless slave unit cannot be performed.

  An object of the present invention is to solve the above-described problems of the prior art and provide a plurality of time information to a wireless slave unit.

  In order to solve the above-described problems, for example, the configuration described in the claims is adopted. The present application includes a plurality of means for solving the above-described problems. For example, in an exchange accommodating at least one base station, the base station identification information of the base station to which the time is to be distributed. And time information holding means for holding a plurality of time information including group information for managing the base stations as a group, and time information including base station identification information corresponding to a distribution target base station for each group. And time information distribution means for distributing to a station.

  According to the present invention, a user who holds a wireless slave device that temporarily exists within a specific range is notified of arbitrary time information to the wireless slave device separately from the time information set in the wireless slave device. In addition, the time information of the wireless slave unit can be updated and displayed.

1 is a system configuration diagram illustrating an example of a wireless communication system. It is a block block diagram which shows an example of the private branch exchange used for a radio | wireless communications system. It is a block block diagram which shows an example of the radio base station used for a radio | wireless communications system. It is a block block diagram which shows an example of the PHS radio | wireless subunit | mobile_unit used for a radio | wireless communications system. It is an example of the time information notification list held by the private branch exchange. It is an example of the coding of the time information notification message notified to a wireless base station from a private branch exchange. It is an example of the time information notification list held by the radio base station. It is an example of the message coding of the 1st frame of the time information notification message alert | reported to the PHS radio | wireless handset in a standby state from a wireless base station. It is an example of the message coding of the 2nd frame of the time information notification message alert | reported to the PHS radio | wireless handset in a standby state from a wireless base station. It is an example of the coding of the time information notification message notified from the radio base station to the PHS radio slave in a call state. It is an example of the message coding of the time information data which comprises a time information notification message. It is an example of the operation | movement flowchart figure of the radio | wireless base station which alert | reports a time information notification message to a PHS radio | wireless handset. It is an example of the time information table which a PHS radio | wireless subunit | mobile_unit hold | maintains. It is an example of the operation | movement flowchart figure which the PHS radio | wireless handset in a standby state receives and displays the time information notification message from a radio base station. FIG. 3 is an example of a sequence diagram in which a private branch exchange notifies a time information notification message to a PHS wireless slave in a standby state via a wireless base station. It is an example of the operation | movement flowchart figure which a PHS radio | wireless handset switches the display of time information. It is an example of the operation | movement flowchart figure in which the PHS radio | wireless handset in a telephone call state receives and displays the time information from a wireless base station. It is an example of a sequence diagram in which a time information notification message is notified when a PHS wireless handset is disconnected at the end of a call. It is an example of a sequence diagram in which a time information notification message is notified when a PHS wireless handset ends a call and the other party on the call is disconnected. It is an example which built the radio | wireless communications system in the building which exists three-dimensionally in several floors. It is an example which built the radio | wireless communications system in planar space.

  FIG. 1 is a system configuration diagram illustrating an example of a wireless communication system. As a specific example, the present invention is applied to an office PHS that is realized by the Association of Radio Industries and Businesses (ARIB) standard “Second Generation Cordless Telephone System Standard (RCR STD-28)”. However, the embodiment of the present invention is not limited to the office PHS, but can be applied to a public PHS and a home PHS.

  The wireless communication system includes a private branch exchange (hereinafter referred to as “PBX”) 100, a plurality of wireless base stations 101 to 103, a PHS wireless slave unit 104 to 105, and an extension telephone 108. The extension side terminal device, the public communication network 106, and the private line network 107 are accommodated, and communication between the terminal devices is realized. A private branch exchange (PBX) 100 is connected to a maintenance terminal 109 for inputting various data such as time information data and control data and performing maintenance control. The wireless base stations 101 to 103 are connected to the private branch exchange (PBX) 100 by a wired cable, and wirelessly communicate with the PHS wireless slave units 104 to 105 by radio waves. Of course, the number of radio base stations and PHS radio slave units is not limited to these.

  FIG. 2 is a block diagram showing an example of a private branch exchange (PBX) 100 that configures and controls the wireless communication system of FIG.

  This private branch exchange (PBX) 100 includes lines (such as public lines 106 and dedicated lines 107) and telephone terminals (general analog telephones, digital multifunction telephones, PHS (Personal Handyphone System) terminals, etc.). A telephone line switch 200 for exchanging circuits, a station trunk 201 for accommodating public network lines, a trunk trunk 202 for accommodating leased line networks, an extension circuit 203 for accommodating extension telephones, and a radio base station. Base station trunks 204 to 206 are connected and equipped with a control unit 207, an input / output unit 210, and a storage unit 211 for controlling the present apparatus.

  The control unit 207 includes a time information management unit 208 and a time information distribution unit 209. The storage unit 211 includes a time information holding unit 212.

  Here, the extension circuit 203 connects a plurality of extension telephones, controls them (outgoing, incoming call control, etc.), and performs call connection processing with the private branch exchange (PBX) 100. Reference numerals 204 to 206 connect a plurality of radio base stations, control them (outgoing, incoming call, message transmission / reception control, etc.), and perform call connection processing with the private branch exchange (PBX) 100. The office line trunk 201 connects a public network line, controls (calls, controls incoming calls, etc.) and performs call connection processing with the private branch exchange (PBX) 100. A dedicated line such as another private network is connected and controlled (outgoing, incoming call control, etc.) to perform call connection processing with the private branch exchange (PBX) 100.

  The control unit 207 provided in the private branch exchange (PBX) 100 controls and controls the entire private branch exchange (PBX) 100 to perform call connection control, and functions provided by the private branch exchange (PBX) 100 (telephones). Connection service and time information notification service) and operation / maintenance management. The time information management unit 208 sets the standard time (regular time) in the private branch exchange (PBX) 100 system and the arbitrary time (dummy time) for each radio base station, and manages the time information data to be distributed. Management and control of a time information notification list to be described later. The time information distribution unit 209 distributes a time information notification message (described later) created based on the time information notification list to the subordinate radio base stations 101 to 103, and the PHS wireless slave units 104 to 105 during a call. To notify.

  A storage unit 211 is connected via a control bus. The storage unit 211 has a program for the control unit 207 to perform a time information notification service, a system setting for performing line switching and call connection control, and the like. Station data (various tables) such as operation conditions, function conditions, and operation states are stored.

Time information data including time information to be notified to the PHS wireless slave devices 104 to 105 is stored in the time information holding unit 212 as a time information notification list (described later).
The storage unit 211 includes a ROM, a RAM, a flash memory, a magnetic storage disk, an optical disk, and the like.

  Further, an input / output unit 211 for connecting a maintenance terminal 109, which is a terminal device used to set the station data necessary for the operation of the private branch exchange (PBX) 100, is connected to the control bus. When the private branch exchange (PBX) 100 is used, station data and time information data can be set and updated as needed from the maintenance terminal 109 to the storage unit 211 according to usage conditions and the like. Therefore, the changed data can be reflected to the radio base stations 101 to 103 in real time even during operation.

  Here, the operation of the time information management unit 208 will be described. The private branch exchange (PBX) 100 is equipped with a built-in clock (not shown) in the control unit 207 in order to realize circuit switching control, and is generated in the private branch exchange (PBX) 100 based on this built-in clock. Date information is calculated from the time information and is operated in the private branch exchange (PBX) 100. In addition to this time information, a plurality of arbitrary times are set on the maintenance terminal 109 as a time information notification list (described later). It is managed and operated by the time information management unit 208.

  In addition, the time information management unit 208 uses a plurality of arbitrary time information set in a time information notification list (described later) as an initial value to advance each time based on a built-in clock (time at each time). Keeps ticking).

  In addition, by distributing the time information operated in the private branch exchange (PBX) 100 to all the radio base stations 101 to 103, all of the PHS radio slaves 104 to 105 under the private branch exchange (PBX) 100 are obtained. It becomes possible to make the times coincide, that is, to correct the time.

  FIG. 3 is a block diagram showing an example of a radio base station connected to the private branch exchange (PBX) 100 constituting the radio communication system of FIG.

  The radio base stations 101 to 103 are equipped with antennas 301 to 302, a radio unit 303, a modem unit 308, a TDMA processing unit 309, a line interface unit 310, a control unit 311, and a storage unit 315.

  The wireless unit 303 includes an antenna switching unit 304, a receiving unit 305, a transmitting unit 306, and a synthesizer unit 307. The control unit 311 controls the radio base stations 101 to 103 as a whole. The time information reception processing unit 312 receives time information data from the private branch exchange (PBX) 100, and the time received from the private branch exchange (PBX) 100. Time information management unit 313 that analyzes the contents of the information and determines update of time information data distributed to the PHS wireless slave devices 104 to 105, and time information distribution processing that distributes the time information data to the PHS wireless slave devices 104 to 105 Part 314 is included. The storage unit 315 stores information such as an operation program for realizing a wireless communication service, wireless communication conditions with the PHS wireless slave devices 104 to 105, a communication state, and the like. The storage unit 315 includes a time information holding unit 316, and the received time information data is stored in the time information holding unit 316 as a time information notification list (described later).

  The storage unit 315 includes a ROM, a RAM, a flash memory, a magnetic storage disk, an optical disk, and the like.

  The antennas 301 to 302 are used by switching the transmission / reception unit by the switching unit 304, and perform diversity control at the time of reception. The reception signal demodulated by the modem unit 308 via the reception unit 305 is transmitted as continuous reception data from the TDMA processing unit 309 to the base station trunks 204 to 206 of the private branch exchange (PBX) 100 via the line interface unit 310. . On the other hand, continuous transmission signals from the private branch exchange (PBX) 100 are transmitted from the base station trunks 204 to 206 and transmitted to the TDMA processing unit 309 via the line interface unit 310. In the TDMA processing unit 309, continuous transmission data is converted into burst data, modulated by the modem unit 308, and transmitted to the wireless slave units 104 to 105 via the transmission unit 306.

  A user specific control channel (hereinafter referred to as “USCCH”), which is a channel that can be defined on the physical slot for control as broadcast information in accordance with the provisions of the ARIB standard RCR STD-28. The time information distribution processing unit 314 always notifies the PHS wireless slave devices 104 to 105 of time information data. If this USCCH satisfies the specified items, its usage is optional and can be used as an arbitrary control channel by the user.

  Furthermore, data that has been changed even during operation is distributed from the private branch exchange (PBX) 100, so that it can be notified to the PHS wireless handsets 104 to 105 in real time via the USCCH.

  Here, the operation of the time information management unit 313 will be described. In the radio base stations 101 to 103, a built-in clock (not shown) is mounted in the control unit 311 in order to realize digital transmission and radio communication with the private branch exchange PBX (100) and the PHS radio slave units 104 to 105. The time information management unit 313 manages and operates the time uniquely generated by the radio base stations 101 to 103 based on this built-in clock.

  FIG. 4 is a block configuration diagram showing an example of the PHS wireless slave units 104 to 105 accommodated in the private branch exchange (PBX) 100 configuring the wireless communication system of FIG.

  The PHS wireless slave devices 104 to 105 include a receiver 401, a microphone 402, a voice control unit 403, a codec unit 404, a TDMA processing unit 405, a modem unit 406, a wireless unit 407, an antenna 412, an operation unit 413, a display unit 414, and a control unit. 415, a storage unit 418, and a power supply unit 423 are provided.

  The wireless unit 407 includes a receiving unit 408, a transmitting unit 410, a synthesizer unit 409, and an antenna switching unit 411. The control unit 415 controls the PHS wireless slave units 104 to 105 as a whole. Further, the control unit 415 analyzes the contents of the time information received from the radio base stations 101 to 103, the time information reception processing unit 416 that receives the time information data from the radio base stations 101 to 103, and the time information data A time information management unit 417 for performing update determination and display determination processing for received time information is included.

  Audio data input from the microphone 402 is encoded by the codec unit 404 via the audio control unit 403. The operation from the TDMA processing unit 405 to the transmission to the radio base stations 101 to 103 and the operation until the received signal is sent to the TDMA processing unit 405 are the same as the operation of the radio base station shown in FIG. The received signal that has become continuous data by the TDMA processing unit 405 is decoded by the codec 404 and transmitted by the receiver 401 via the voice control unit 403.

  The storage unit 418 stores information such as an operation program for realizing a wireless communication service, operation conditions of the PHS wireless slave units 104 to 105, communication conditions with the wireless base stations 101 to 103, and a communication state. . The received time information data is stored in the time information holding unit 419 as a time information table (described later). Note that the storage unit 418 includes a ROM, a RAM, a flash memory, a magnetic storage disk, an optical disk, and the like. Here, the operation of the time information management unit 417 will be described. In the PHS wireless slave devices 104 to 105, a built-in clock (not shown) is mounted in the control unit 415 to realize wireless communication with the wireless base stations 101 to 103, and the PHS wireless slave device is based on the built-in clock. The time information management unit 417 manages and operates the time uniquely generated by the devices 104 to 105.

  FIG. 5 is an example of a time information notification list held by the private branch exchange (PBX) 100 in the wireless communication system of FIG. This time information notification list is set from the maintenance terminal 109 and is held in the time information holding unit 212 of the storage unit 211 of the private branch exchange (PBX) 100.

  Time information managed as a time information notification list in the private branch exchange (PBX) 100 includes a time information notification target group 500, a notification target wireless base station 501, a state change 502, a message number 503, a time display type 504, and notification time information 505. The target extension number 506 and the display instruction flag 507.

  Here, the time information notification target group 500 is a notification group management number used when a plurality of radio base stations are grouped in units of spatial areas, and is operated and divided into a maximum of 32 groups of groups 00 to 31. Can be managed. In this grouping, one and a plurality of radio base stations can be arbitrarily registered in the case of location management, and the registered radio base station identifies the radio base station to be identified for identifying the radio base station. Managed by the station 501.

  The time information notification target group 500 is registered and managed in advance as a belonging group 1301 (described later) in each PHS wireless slave device (described later).

  Further, the state change 502 is incremented by 1 every time the private branch exchange (PBX) 100 distributes time information data to a radio base station to be notified. That is, the value of the state change 502 changes every time time information is distributed to the radio base station, and is not involved in whether or not the item contents 501 and 503 to 507 of the time information notification list are changed or updated. .

  Further, the message number 503 is incremented by 1 each time the item contents 501 to 507 of the present time information notification list are changed or updated regardless of whether or not a time information notification message (described later) is distributed. That is, the update history of the time information notification list item is used for managing by the time information management unit 208, and the content of the time information notification list is the same regardless of whether or not the time information notification message is distributed to the radio base station. It will be the same value unless it is updated.

  Here, the state change 502 is used to update the time information when the wireless base stations 101 to 103 and the PHS wireless slave devices 104 to 105 receive the time information data in a time information notification message (described later). Even when the value of the state change 502 is completed, the PHS wireless slave devices 104 to 105 are used in combination with the message number 503 so that the latest time information can be accurately updated.

  The message number 503 includes a time information notification message (described later) to be notified to the PHS wireless slave device during a call and a time information notification message (described later) to be notified to a PHS wireless slave device other than during a call (standby state). Is used as information for determining whether or not the PHS wireless slave device is applied. That is, the PHS wireless slave device does not receive the same message twice in the process of waiting from a call, and user / user information (User User Information) (hereinafter referred to as “user information”) used during a call to be described later. It is synchronized with the message number stored in the UUI).

  The time display type 504 stores information indicating whether the notified time information is a 24-hour display or a 12-hour display. The notification time information 505 stores time information specifically notified to the radio base station registered in the notification target radio base station 501 as the year, year, month, day, day of the week, hour, minute, and second. The

  Furthermore, the time information notification target group 500 can be used not only for the location management but also for the continuous management of PHS wireless slaves to be individually managed. In this case, the target for identifying the PHS wireless slaves A PHS wireless slave to be managed individually is arbitrarily registered in advance in the extension number 506 area. When the PHS wireless slave device registered in the target extension number 506 exists outside the area of the wireless base station registered in the notification target wireless base station 501, for example, under other wireless base stations, the PHS wireless This is used when a time information notification message is forcibly notified via another radio base station at the end of the call of the slave unit.

  The display instruction flag 507 includes a PHS wireless slave device in a standby state in which a time information notification target group 500 is set in advance as a belonging group 1301 (described later) under the control of the radio base station registered in the notification target radio base station 501. “Forcible display” for forcibly displaying the notified notification time information 505 on the corresponding PHS wireless slave device registered in the target extension number 506 in a wireless base station area other than the wireless base station. Flag, “Display cancellation” flag for canceling screen display, “Display optional” flag for entrusting application of screen display depending on the setting state of the PHS wireless handset, “Display clear” for hiding screen display Information indicating a flag is stored.

  As described above, all the information stored for each time information notification target group can be changed from the maintenance terminal 109 at any time. Accordingly, for example, an operation in which only the display instruction flag “display compulsory / display release / arbitrary display / display clear” is updated at each time such as a timer setting or the like becomes possible.

  Specifically, in the time information notification target group “00”, the wireless base stations 1 to 3 are notification target wireless base stations, the state change is “0”, the message number is “0”, and the time display type is “24-hour display”. ”, The notification time information is managed with the attributes“ 20AA year BB month CC day D day EE hour FF minute GG second ”, the target extension number is“ total number of wireless slaves ”, and the display instruction flag is“ display release ”.

  This is because when the private branch exchange (PBX) 100 delivers a time information notification message, information contents of the time display type 504, notification time information 505, and display instruction flag 507 are picked up and coded in the information element of the time information notification message. In other words, the information is distributed to the radio base stations 1 to 3 which are the radio base stations to be notified. In addition, the communication is disconnected for the PHS wireless slaves (in this case, the total number of wireless slaves registered in the target extension number 506) that are communicating with the wireless base stations other than the wireless base stations 1 to 3 that are the notification target wireless base stations. It sometimes indicates that this time information notification message is notified.

  In the time information notification target group “01”, the wireless base stations 4 to 10 are the notification target wireless base stations, the state change is “1”, the message number is “0”, the time display type is “24-hour display”, and the notification time information Are managed with the attributes “20HH, IIJ, JJ, K, LL, MM, GG,”, the target extension is “wireless slaves 1 to 10”, and the display instruction flag is “display forcible”. Similarly, the time information notification target groups “02” to “31” are individually stored and managed as a time information notification list, and this usage is the same as described above.

  Here, in the notification time information 505, the second data is common to all the time information notification target groups “00” to “31”, so that there is a performance difference between hardware units on the PHS wireless slave device side. However, the error (variation in the amount of deviation) can be reduced.

  6 is based on the time information notification list of FIG. 5 held and managed by the private branch exchange (PBX) 100 and the time information managed and operated by the time information management unit 208 in the wireless communication system of FIG. 4 is an example of coding of a time information notification message distributed from a private branch exchange (PBX) 100 to a notification target radio base station.

Octet 1 is a protocol identifier 600 indicating that the message is unique to the system, and octets 2 and 3 are a call number length 601 and a call number value 602 of this message.
Octets 4 to 14 are details of the time information notification message. Octets 4 and 5 are a message type 603 indicating the time information notification message and the content length 604 of the item information element, octet 6 is a display instruction flag 605 and a notification target group 606, and octet 7 is a state change 607 and a message number 608. Octet 8, 9, 10 includes year data 609, month data 610, day data 611, octet 11 includes time display type 612 indicating time display format, day of week data 613, and octets 12, 13, 14 respectively. Hour data 614, minute data 615, and second data 616 are stored.

  When the time information notification message is distributed to the radio base station to be notified, each time information managed and operated by the time information management unit 208 of the private branch exchange (PBX) 100 is data 609 to 616, respectively. Stored and distributed.

  FIG. 7 is an example of a time information notification list held by each radio base station in the radio communication system of FIG. In this time information notification list, the time information received by the time information reception processing unit 312 of each radio base station in the time information notification message of FIG. 6 is held in the time information holding unit 316 of each radio base station. is there.

  The time information notification list managed by each radio base station includes a reception processing status 700 for determining whether the time information notification message has been normally received from the private branch exchange (PBX) 100, a time information notification target group 701, and a state change 702. Message number 703, time display type 704, notification time information 705, and display instruction flag 706. When there is no time information data received by the time information notification message, such as at the initial startup of the radio base station, the reception processing status 700 is set to “initial state”, and each subsequent information is managed as “undefined”.

  When a new time information notification message is normally received from the private branch exchange (PBX) 100, the time information notification list of the time information holding unit 316 is overwritten and updated.

  8 and 9 show the radio base stations 101 to 101 corrected by the time information notification list of FIG. 7 and the time information notification message of FIG. 6 managed by the radio base stations 101 to 103 in the radio communication system of FIG. Based on the time information managed and operated by the time information management unit 313, the wireless base stations 101 to 103 always notify the PHS wireless slave devices 104 to 105 other than those in a call (standby state) wirelessly. It is an example of the coding of the time information notification message delivered on USCCH.

  Here, the amount of information that can be distributed in one transmission by the USCCH broadcasted from the radio base stations 101 to 103 to the PHS radio handsets 104 to 105 is 8 octets according to the above-mentioned provision of the ARIB standard RCR STD-28. In addition, it is necessary to effectively use a region other than the portion used for controlling the PHS wireless slave devices 104 to 105. Therefore, in order to distribute the time information data to the PHS wireless slave devices 104 to 105, one time information notification message is transmitted using two USCCHs (first frame and second frame).

  FIG. 8 is an example of message coding of the first frame of USCCH. Octet 1 is an information element identifier 800 indicating a time information message, Octet 2 is second data 801, Octet 3 is a display instruction flag 802, a frame number 803, a time information notification target group 804, octets 4, 5, 6, the year data 609, the month data 610, the day data 611, and the octet 7 store state changes, respectively. The octet 8 stores a notification reception instruction 809 defined by RCR STD-28, and indicates that the first frame of the time information notification message is notified to the PHS wireless slave devices 104 to 105.

  FIG. 9 is an example of message coding of the second frame of USCCH. Octet 1 is an information element identifier 900 indicating that it is a time information message, octet 2 is a message number 901, frame number 903, and a time information notification target group 903, and octet 3 is a time display type 904 indicating a time display format. In the day of the week data 905 and the octets 4, 5 and 6, the hour data 906, the minute data 907, the second data 908 and the octet 7 store state changes, respectively. The octet 8 stores a notification reception instruction 809 defined in RCR STD-28 and indicates that the second frame of the time information notification message is notified to the PHS wireless slave units 104 to 105.

  These time information notification messages broadcast on the USCCH are broadcast to the PHS radio handsets 104 to 105 with the first frame and the second frame paired without fail. Therefore, the PHS wireless handsets 104 to 105 that have received the time information notification message reflect the contents of the time information data to themselves only when both the first frame and the second frame have been normally received in succession. When the first frame and the second frame cannot be continuously received due to a missing notification message or a reception error, the time information notification message itself can be discarded to prevent the reflection of erroneous information.

  The reason why the second data 801 and 908 are stored in the octet 2 of the first frame in FIG. 8 and the octet 6 of the second frame in FIG. 9 is that the radio base stations 101 to 103 to the PHS radio slave units 104 to 105, respectively. This is because it may occur that the second data changes when informing the user. Furthermore, since the time information notification message is distributed from the private branch exchange (PBX) 100, the state changes 808 and 909 are incremented by one, so that the state changes 808 and 909 have the same value, If the state changes 808 and 909 are not the same due to the update and notification timing at the station, the reception error of the PHS wireless slave units 104 to 105, etc., the PHS wireless slave units 104 to 105 may determine that the data is abnormal. Yes, discard the received time information notification message.

  FIG. 10 shows individual PHS wireless handsets 104 to 105 that are in communication and correspond to the target extension number 506 in the time information notification list managed by the private branch exchange (PBX) 100 in the wireless communication system of FIG. It is an example of the coding of the time information notification message in the case of notifying. This time information notification message is added to the call control message disconnection message as user / user information (hereinafter referred to as UUI).

  In FIG. 10, octets 1 to 4 are an information group 1000 indicating a call control message disconnection message, octets 5 to 9 are an information group 1001 indicating a reason display, and octets 10 to 21 are an information group 1002 indicating the details of a UUI. It is composed of

  In the information group 1002 indicating the details of the UUI, the octet 10 is an information element identifier 1003 indicating user / user information, the octet 11 is a user / user information content length 1004, and the octet 12 is a time information notification message. A message type 1005 and octet 13 indicating that there are a message number 1006 and a frame number 1007 and a notification target group 1008, octets 14, 15 and 16 are year data 1009, month data 1010, day data 1011 and octet 17 are respectively The time display type 1012, the day of the week data 1013, the octets 18, 19, and 20 respectively store the hour data 1014, the minute data 1015, the second data 1016, and the octet 21, and the state change 1018 and the display instruction flag 1018, respectively.

  FIG. 11 is distributed by the time information notification message from the private branch exchange (PBX) in FIG. 6 to the radio base station and the time information notification message from the radio base station in FIG. 8, FIG. 9 and FIG. 10 to the PHS radio slave unit. An example of message coding of time information data is shown.

  Here, the year / month / day / hour / minute / second data 1100 has a 4-bit configuration of “0” to “9”, and the day-of-week data 1101 has a 3-bit configuration of “Sunday” to “Saturday”. The time display type 1102 is defined as “24-hour display”, “12-hour display AM”, and “12-hour display PM” in a 2-bit configuration, and the display instruction flag 1103 is “display forced” in a 2-bit configuration. , “Display release”, “display arbitrary”, and “display clear” are defined, frame number 1104 defines “first frame” and “second frame” in a 1-bit configuration, and state change 1105 is 3 bits. “0” to “7” are defined in the message, the message number 1106 is defined as “0” to “3” in the 2-bit configuration, and the notification target group 1107 is “all-terminal target”, “target” in the 5-bit configuration. Define “Group 1” to “Target Group 31” It is.

  FIG. 12 is a radio base station that receives a time information notification message from the private branch exchange (PBX) 100 in the radio communication system of FIG. 1 and distributes the time information data to the PHS radio handsets 104 to 105 that are not in a call (standby state). It is an example of the flowchart figure which showed the operation | movement of 101-103.

  The wireless base stations 101 to 103 establish a communication link 1201 by determining whether or not the communication line control with the private branch exchange (PBX) 100 operates normally when the power is turned on 1200. Thereafter, based on the built-in clock used by the wireless base stations 101 to 103 for timing generation for digital transmission, the wireless base stations 101 to 103 start counting the second data of the time independently (zero start) 1202 The time information (starting from 00:00:00) is continuously generated 1210 using the clock built in the radio base station.

  Thereafter, 1203 which determines the value of the reception processing status 700 of the time information notification list receives the time information notification message (FIG. 6) once when the radio base stations 101 to 103 are turned on or from the private branch exchange (PBX) 100. If not, since the time information held in the time information holding unit 316 of the radio base station is incorrect (undefined), the reception processing status 700 is in the initial state (Yes in 1203), and the radio side control information is intermittent. The transmission operation state is entered 1206 and the operation state is entered.

  When a new time information notification message (FIG. 6) is received from the private branch exchange (PBX) 100 during this intermittent transmission operation 1206, 1207, the radio base stations 101 to 103 determine the coding contents of the received time information data. When the received data is abnormal (No in 1208), the received data is discarded 1212. When the received data is normal (Yes in 1208), the reception processing status 700 of the time information notification list of the radio base stations 101 to 103 is changed to “reception completed” 1209, and then the reception processing status 700 of the time information notification list is received. The time information notification list held by the time information holding unit 316 is updated 1211.

  Thereafter, the updated time information (1211 indicates that the year / month / day / day of the week / hour / minute / second data in the time information notification list 705 of the time information notification list held by the wireless base station is immediately counted in seconds ( The time information generated) is processed 1210, and the time information generated by the radio base station matches the time information received from the private branch exchange (PBX) 100, and the time is continuously generated. Set time information to be transmitted to .about.105.

  In the above determination of the value of the reception processing status 700 of the time information notification list, when the reception processing status 700 is not “initial state”, that is, “reception completed” (No in 1203), the time information is stored in the USCCH. Is stored in the time information notification message of FIG. 8 and FIG. At this time, the data of the second data count 1210 at that time is captured and transmitted as the first frame and the second frame of the USCCH 1205, and the operation for intermittently transmitting the wireless side control information is entered 1206.

  Furthermore, after receiving the time information notification message (FIG. 6) even once, unless the power is turned off, the reception processing status 700 remains “reception completed”, so that each time the USCCH is transmitted, the radio base stations 101 to 103 are transmitted. Second time data count 1210), and time information at that time is notified in real time.

Note that the time information notification message (FIG. 6) delivered from the private branch exchange (PBX) 100 to the radio base station is the notification target radio base in the time information notification list (FIG. 5) held and managed by the private branch exchange (PBX) 100. Since the radio base station to be notified is managed by the station 501, there is no erroneous delivery to the radio base station.

  FIG. 13 is an example of a time information table held by the PHS wireless slave devices 104 to 105 in the wireless communication system of FIG. This time information table stores the time information data received by the time information reception processing unit 416 from the radio base stations 101 to 103 in the time information notification messages of FIGS. 8, 9, and 10 of the PHS radio slave units 104 to 105. It is held in the time information holding unit 419.

  The time information table is used with each item 1300 in order to effectively use whether or not the PHS wireless slave devices 104 to 105 adopt the time information notification messages (first frame and second frame) shown in FIGS. It is managed by information 1313.

  The item 1300 includes an affiliation group 1301, unique setting time presence / absence 1302, priority display time 1303, current display time 1304, status change 1305, message number 1306, display instruction flag 1307, time display type 1308, and time type 1309. The time type 1309 includes a regular time 1310 (described later), a unique set time 1311 (described later), and a dummy time 1312 (described later).

  Here, the affiliation group 1301 is a group number set and registered in advance for each PHS wireless handset 104 to 105 before operation, and is managed in the time information notification list of the private branch exchange (PBX) 100 shown in FIG. This is the same as the time information notification target group 500 corresponding to the target extension number 506. Note that the belonging group 1301 to which the PHS wireless slave device belongs can belong to a plurality of groups as well as a single group.

  The unique setting time presence / absence 1302 manages the presence / absence of time information set by the user in the PHS wireless slave devices 104 to 105, and the priority display time 1303 is a time type (regular time) to be preferentially displayed on the screen among the time types 1309. / Unique set time / dummy time), and the current display time 1304 manages the time type (regular time / unique set time / dummy time) currently displayed on the screens of the PHS wireless handsets 104 to 105. Yes.

  The status change 1305, the message number 1306, the display instruction flag 1307, and the time display type 1308 manage the time information data distributed in the time information notification messages of FIGS. 8, 9, and 10 as they are.

  In the PHS wireless handset, the time set by the user = “regular time / uniquely set time”, and the time information data distributed in the time information notification messages of FIGS. 8, 9 and 10 = “dummy time”. It is defined and managed for operation.

  Of the time type 1309, the regular time 1310 and the dummy time 1312 are times managed in the private branch exchange (PBX) 100 system received from the radio base stations 101 to 103, and are subject to time correction of the PHS radio slave unit. Thus, the unique setting time 1311 is a time set by the user in the PHS wireless slave devices 104 to 105, and is not updated even when time information data is received from the wireless base stations 101 to 103. Further, the PHS wireless slave devices 104 to 105 can be set so as to share the unique set time 1311 and the regular time 1310.

  Furthermore, the dummy time 1312 is a time that can be applied as the regular time 1310 not only when the time information data is temporarily operated only at a specific place but also when operated at all places.

  Further, at each time, the year, month, day, hour, minute, and second data are respectively managed (1315 to 1321).

  FIG. 14 is an example of a flowchart illustrating the operation of the PHS wireless slave devices 104 to 105 that receive the time information notification message in the wireless communication system of FIG. 1 and are not in a call (standby state).

  The PHS wireless slaves 104 to 105 are 1400 when the power is turned on, and based on the built-in clock used for timing generation for performing wireless communication transmission with the wireless base stations 101 to 103 after confirming their normality, The slave unit 104 to 105 starts counting the second data of time (zero start) 1401 and continues to generate 1402 time information (starting from 00:00:00) with the clock built in the PHS wireless slave unit 1402. At this time, if the time information remains in the time information holding unit 419, it continues to be generated based on the time information.

  Thereafter, when a standby radio base station is detected, control information notified by the radio base stations 101 to 103 is received in accordance with the provisions of RCR STD-28, and an intermittent reception operation state (standby state) is entered in a battery saving cycle. Transition 1403.

  During this intermittent reception operation 1403, the USCCH broadcast from the radio base stations 101 to 103 can be received, so that the USCCH received from the radio base stations 101 to 103 is always received in the first and second frames. The coding contents of the time information data thus determined are determined and analyzed, and the time information notification target groups (804 and 903) and the belonging group 1301 managed by the time information holding unit 419 by the PHS wireless slave devices 104 to 105 are collated, and they do not match. In the case of (No in 1405), the received time information notification message is judged to be out of target, discarded 1414, and transited to an intermittent reception operation (standby state) 1403. On the other hand, if they match (Yes in 1405), the state change (808 and 909) and the state change 1305 managed by the time information holding unit 419 in the PHS wireless slave units 104 to 105 are collated 1406.

  At this time, if there is no update in the state change 1305 (No in 1406), the received time information notification message is determined to be out of target, discarded 1415, and transitioned to the intermittent reception operation (standby state) 1403. Conversely, if it is determined that the status change 1305 has been updated (Yes in 1406), each information content is stored in the time information table (FIG. 13) held by the PHS wireless slave device, The date / time data is updated 1407.

  The time data to be updated is stored at the dummy time 1312, and at the same time, the second data (801 or 908) is also stored in the second data of the regular time / uniquely set time, and the updated time information is used for the PHS wireless slave unit. By generating the second data count, the time can be corrected. As a result, there is no difference in the second data of the time information between the PHS wireless slave devices 104 to 105 belonging to the time information notification target group of the wireless base stations 101 to 103. Further, the PHS wireless slave devices 104 to 105 control the time for screen display according to the contents of the display instruction flag 802 of the received time information notification message. If the display instruction flag 802 is “display forced” (1409 forced), the process 1413 of displaying the stored time data (dummy time) on the screen with the highest priority is performed. If the display instruction flag 802 is “display canceled”, (1409 is canceled), only the dummy time being displayed on the screen of the PHS wireless slave unit is hidden (1410), and the presence or absence of the time to be displayed thereafter is performed by the operation 1411 according to the setting of the PHS wireless slave units 104 to 105, Transition to the intermittent reception operation state (standby state) 1403 is made. Here, as the operation 1411 by setting the PHS wireless slave devices 104 to 105, the current display time 1304 of the time information table (FIG. 13) held by the PHS wireless slave devices 104 to 105 is other than “dummy time” (“regular time”). , “Independently set time”), no particular processing is performed. That is, the displayed time is continuously displayed.

  If the display instruction flag 802 is “display arbitrary” (1409 arbitrary), the above-described operation of 1411 is performed. If the display instruction flag 802 is “display clear” (1409 clear), the regular time and the original set time, The operation of not displaying the time itself on the screen of the dummy time is performed 1412, and the state transits to the intermittent reception operation state (standby state) 1403.

  FIG. 15 shows transmission of time information data from the private branch exchange (PBX) 100 to the radio base stations 101 to 103, notification to the processing at the radio base stations 101 to 103 and the subordinate PHS radio units 104 to 105, and FIG. 6 is an example of a sequence diagram illustrating operations in which the PHS wireless slave devices 104 to 105 that have received the time information data process the time information data and follow the group and the display flag.

  When the PHS wireless handsets 104 to 105, the wireless base stations 101 to 103, and the private branch exchange (PBX) 100 enter an operation state when the power is turned on, time information is uniquely generated based on a built-in clock in each device (1500). 1501, 1502).

  At this time, since the time data between the devices does not match, first, a time information notification list (FIG. 5) of the private branch exchange (PBX) 100 is created from the maintenance terminal 109 in order to distribute the time information data. The data is updated 1503.

Next, in order to distribute the updated time information notification list to the wireless base stations 101 to 103, a process of incrementing the value of the state change 502 by one is performed 1504, and the wireless base station Deliver time information data to 101-103 1505
The radio base stations 101 to 103 analyze the received time information notification message to perform update determination 1506, and if updated, update the time information notification list held by the radio base station of FIG. 1507 to correct the time data that is generated uniquely by ˜103.

  Thereafter, the process of distributing the updated time information notification list to the PHS wireless slave devices 104 to 105 is performed 1508, and the time information data is notified to the PHS wireless slave devices 104 to 105 by the time information notification messages of FIGS. 1509, 1510). The PHS wireless slaves 101 to 103 analyze the received time information notification message and perform update determination (determination method is based on FIG. 14) by comparing with the time information table of FIG. 13, 1511, and if updated, FIG. The time information table held by the PHS wireless slave devices 104 to 105 is updated to correct the time data uniquely generated by the PHS wireless slave devices 104 to 105, and the received time data display instruction flag (802, 802, 1307) display or hide time on the screen 1512.

  Through this sequence and processing, the private time (1500, 1501, 1502) of the private branch exchange (PBX) 100, the radio base stations 101 to 103 and the PHS radio slaves 104 to 105 can be matched, and the private branch exchange (PBX) ) Time information of the PHS wireless slaves 104 to 105 under 100 can be arbitrarily designated.

  Here, in the flowchart of the PHS wireless slave devices 104 to 105 other than during a call (standby state) described with reference to FIG. 14, the screen display settings and screen display of the PHS wireless slave devices 104 to 105 that have received the time information notification message are related. An example of a specific operation flowchart is shown in FIG.

  In FIG. 16, when the PHS wireless handsets 104 to 105 are in the operating state 1600, for example, the regular time in the private branch exchange (PBX) 100 system is “November 16, 2011 (Wednesday) 10:30” The case 1601 will be described as an example.

  The PHS wireless handsets 104 to 105 determine whether or not the time has been set by the user 1602, and if the time has not been set (No in 1602), the time display non-display state 1603 is displayed on the screen, for example, “— "--Year--Month-- (-), -------------" On the other hand, when the time is set (Yes in 1602), the time information (for example, “November 16, 2011 (Wednesday) 10:25” 1606) 1606 input by the user is set as “uniquely set time 1311”. Store (1607).

  Thereafter, whether or not to correct the input time information (unique setting time 1311) using the time information notification message of FIG. 8 and FIG. 9 is set, and if it is corrected (Yes in 1608), this unique setting time is set. 1311 is also stored as the regular time 1310 1609. If correction is not performed (No in 1608), the processing in 1609 is not performed. Next, a priority display time 1303 to be preferentially displayed on the screen is selected 1610 from a time type 1309 (unique setting time / regular time / dummy time). Here, when the dummy time is selected, it is determined whether the dummy time 1312 is set 1611. If it is set (Yes in 1611), the dummy time 1312 is displayed (1612, 1613), and if not set. (No in 1611) Time display is not performed 1603. When the regular display time is selected in the priority display time selection 1610, the regular time 1310 is displayed (1614, 1615). When the unique setting time is selected, the unique setting time 1311 is displayed (1616, 1617).

  Thereafter, when a new time information notification message is received from the radio base stations 101 to 103, the process after 1405 in FIG. 14 is performed and stored as “dummy time 1312”.

  FIG. 17 is an example of a flowchart illustrating an operation of receiving and storing a time information notification message notified by the PHS wireless slave devices 104 to 105 during a call in the wireless communication system of FIG. 1 after the call ends.

  When the PHS wireless handsets 104 to 105 are in a call state 1700 and disconnect processing at the end of the call is executed 1701, it is determined whether or not there is a time information notification message in the UUI notified from the private branch exchange (PBX) 100 1702, when there is no time information notification message (No in 1702), the state transits to the standby state 1713. On the other hand, if there is a time information notification message (Yes in 1702), the value of “state change” in the time information notification message is analyzed to determine whether there is an update 1704. When there is no update (No in 1704), the state transits to the standby state 1713. On the other hand, if there is an update (Yes in 1704), the received time information data is processed 1704 according to the received content.

  The contents of 1703 to 1712 in FIG. 17 are the same as 1405 to 1413 in FIG.

  Further, each screen display process (1709, 1710, 1711) is performed according to the determination 1707 of the display instruction flag, and then the process shifts to a standby state 1713. At this time, although the radio base station detection operation described in FIG. 14 is performed, the time information notified in FIG. 17 is updated, and then the time information notified in the standby state is continuously received. However, in order to prevent this unnecessary processing, the “message number 1306” in the time information table storing the time information notification message received immediately before may be different from the message number 901 in the newly received time information notification message. For example, the time information of the PHS wireless slave devices 104 to 105 is updated. In addition, the call partner may perform the call termination disconnection process. In this case, the operation is the same as that in FIG.

  18 and FIG. 19 show the relationship between the PHS wireless slave devices 104 to 105, the wireless base stations 101 to 103, and the private branch exchange 100 when the disconnection processing is performed on the PHS wireless slave devices 104 to 105 in communication described with reference to FIG. It is an example of a specific sequence.

  FIG. 18 is an example of a sequence in the case where the disconnection process is performed in the PHS wireless slave units 104 to 105 during a call.

  When the PHS wireless handsets 104 to 105 perform the disconnection process 1803 after the call is finished, a disconnect message (DISConnect) (hereinafter referred to as “DISC”) is transmitted to the wireless base stations 101 to 103 1804 and the wireless base stations 101 to 103. A disconnect message (DISC) is transmitted 1805 from the private branch exchange 100 to the private branch exchange 100. After the private branch exchange 100 performs the disconnection process to the other party, the PHS wireless handset 104 to 105 checks the target extension number 506 registered in the time information notification list of FIG. If registered, the time information notification message (RELease) (hereinafter referred to as “REL”) is transmitted by UUI in order to uniquely distribute the time information notification message of FIG. 10 to the wireless base stations 101 to 103 in communication. 1807 to be transmitted. Then, the time information notification message is transmitted from the radio base stations 101 to 103 to the PHS radio slave units 104 to 105 as a release message (REL) with the UUI being added 1808.

  Note that the UHS time information added to the release message (REL) received by the PHS wireless slave devices 104 to 105 is analyzed, and the PHS wireless slave devices 104 to 105 analyze the received time information notification message. 13 is updated and compared with the time information table 1511. If updated, the time information table held by the PHS wireless handset shown in FIG. Along with 1809 that corrects the current time data, a release completion message (RELECOM COMPlet) (hereinafter referred to as “RELCOMP”) is transmitted to the radio base stations 101 to 103 in 1810, and the radio base stations 101 to 103 complete the release to the private branch exchange 100. A message (RELCOMP) is transmitted 1811, and the disconnection processing sequence ends.

  On the other hand, FIG. 19 is an example of a sequence in the case where the disconnection process is performed by the other party's main call of the PHS wireless slave units 104 to 105 during a call.

  When the other party performs the disconnection process 1903 after the end of the call, the private branch exchange 100 collates 1904 with the target extension number 506 registered in the time information notification list of FIG. In order to distribute the ten time information notification messages to the wireless base stations 101 to 103 in communication, the time information is added to the disconnect message (DISC) by UUI and transmitted 1905. Then, the time information notification message is transmitted as a disconnect message (DISC) 1906 from the wireless base stations 101 to 103 to the PHS wireless slave devices 104 to 105 with the UUI added 1906.

  Note that the UHS time information added to the disconnect message (DISC) received by the PHS wireless slave devices 104 to 105 is analyzed, and the PHS wireless slave devices 101 to 103 analyze the received time information notification message. 13 is updated and compared with the time information table 1511. If updated, the time information table held by the PHS wireless handset shown in FIG. A release message (REL) is transmitted 1907 to the radio base stations 101 to 103 together with 1907 for correcting the current time data, and a release message (REL) is transmitted 1909 from the radio base stations 101 to 103 to the private branch exchange 100. Thereafter, the private branch exchange 100 transmits a release completion message (RELCOMP) to the radio base stations 101 to 103 in 1910, and a release completion message (RELCOMP) is transmitted from the radio base stations 101 to 103 to the PHS radio slave units 104 to 105 in 1911. The cutting process sequence ends.

  Specific application examples of the present invention will be described below.

  FIG. 20 is a diagram showing an example of an office building in which business departments such as companies exist on a plurality of floors (three-dimensional space) using the wireless communication system of FIG.

  Here, the third floor 2000 represents the domestic business department, the second floor 2002 represents the overseas business department A (for Washington), and the first floor 2004 represents the overseas business department B (for South Africa). Reference numerals 2001, 2003, and 2005 schematically represent ranges (radio zones) within which radio waves transmitted from the radio base stations 101 to 103 installed on each floor can reach.

  The wireless base station 101 installed on the third floor 2000 is an example in which the time information in which the time information notification target group 500 is set to “01” and the display instruction flag 507 is set to “display compulsory” is always notified on the USCCH. is there.

  Here, when the PHS wireless handset 104 exists in the wireless zone 2001 of the wireless base station 101 and is in a standby state, the USCCH can be received. Among the time information of the received USCCH, the time information notification target group 500 is collated with the belonging group 1301 set in advance in the PHS wireless slave device 104, and if it matches, the time information of the received USCCH is displayed. Capture and display on the screen of the display unit 414.

  With this operation, the PHS wireless handset 104 moves to the third floor 2000, and time information that is constantly notified from the wireless base station 101 without performing call connection control such as outgoing / incoming calls. Can be displayed on the screen of the display unit 414.

  Therefore, in this case, even when the PHS wireless slave device 105 that has been on the second floor 2000 moves, if the time information notification target group 500 matches the belonging group 1301 that is set in advance in the PHS wireless slave device 105, it is compulsory. By receiving the time information notified by the wireless base station 101 and displaying it on the screen of the display unit 414, the time information of all the PHS wireless slave units can be matched while being in the service area. is there.

  In the three-dimensional space as shown in FIG. 20, the usage scene of the present invention is moved to the lower floor (the second floor 2002 and the first floor 2004) with the PHS wireless handset 104 operated on the third floor 2000. An example of performing business will be described.

  The PHS wireless handset 104 normally performs operations in Japan on the third floor 2000. However, if work with Washington occurs on the second floor 2002 due to regular meetings or temporary work, the work efficiency will be improved by synchronizing with the local Washington time, but the time display on the PHS wireless handset will be displayed to the user. Resetting each time and changing the display are troublesome. In addition, in order to solve the problem that the operation of returning the time display is required when returning to the third-floor floor 2000 where normal work is performed after the work on the floor is completed, a specific example will be described below. To do.

  First, in the private branch exchange (PBX) 100, the standard time in Japan, the standard time in Washington, and the standard time in South Africa are registered in the maintenance terminal 109, and the standard time in Japan is registered in the radio base station 101. Washington standard time is delivered to the radio base station 103, and South Africa standard time is delivered to the radio base station 103. Each of the radio base stations 101 to 103 is notified by radio waves.

  Here, when the PHS wireless handset 104 is located on the third floor 2000, it receives the USCCH of the wireless base station 101 and receives the Japan standard time. After that, when moving to the second floor 2002 and the radio base station 101 does not reach the radio base station 102 and waits for the radio base station 102, when the time information notification target group 500 notified by the USCCH matches, the time of Washington Information is received and stored as dummy time, and Washington time (dummy time) is automatically displayed on the screen of the display unit 414 of the PHS wireless slave device 104.

  Similarly, when moving to the first floor 2004, the USCCH of the radio base station 103 is received in the same manner. When the time information notification target group 500 is applicable, the time information of South Africa is received separately from the regular time. As a dummy time, the South African time (dummy time) can be automatically displayed on the screen of the display unit 414 of the PHS wireless slave device 104.

  On the other hand, in a conference call or the like, for a PHS wireless handset 104 that does not exist under a wireless base station but is located elsewhere, the PHS wireless handset is set by setting a special number dial of the private branch exchange (PBX) 100 or the like. The same time information can be shared without being under the control of the radio base station by making an incoming call to the device 104 and notifying the disconnect message of the time information by UUI.

  By applying the present invention, for example, in an office building where business departments exist on multiple floors (three-dimensional space) in a company, etc., or in a room separated by walls or partitions for each department, for example, cooperation with overseas business departments (For example, when the head office is in London and the branch office is in Tokyo) When a person with a PHS wireless handset enters the department or floor and waits for radio waves from the wireless base station on the floor, The time of the PHS wireless handset automatically switches to London time. As a result, it becomes easy to perform business smoothly in synchronization with the time of the other party.

  FIG. 21 is a diagram showing an example applied to a planar space such as a theme park.

  As a specific example, a case where the PHS wireless slave device is lent to a general visitor and used will be described.

Here, 2100 indicates the entire site of the theme park and indicates the service area of the present system. In this site, there are a booth A2108, a booth B2115, and a booth C2119 such as spatially partitioned attractions. In the booth A2108, wireless base stations 2111 and 2113 are installed. In the booth B2115, a wireless base station is installed. A station 2117 is installed, a radio base station 2121 is installed in the booth C2119, and radio base stations 2102, 2004, and 2106 are installed in the site 2100 outside the booth. The general radio base stations 2102, 2104 and 2106 have a private branch exchange (PBX) 100 system regular time (regular time) of “9:30:10”, and the booth A radio base stations 2111, 2113 have a New York standard. “10:30:10” as the time (dummy time) is given to the radio base station 2117 of Booth B “6:10:10” is distributed as the Italian standard time (dummy time), and “23:45:10” is distributed as the virtual country standard time (dummy time) to the wireless base station 2121 of the booth C. Time information is transmitted from the wireless base station of USCCH.

  By lending the PHS wireless handset 104 to a general user who has entered from the entrance 2101 of the theme park, the PHS wireless handset 104 can be used in the service area within the site. Furthermore, by setting an individual standard time for each booth, users in the booth can receive services at the dummy time set for each booth.

  In the PHS wireless slave device 104 to be lent, the belonging group 1301 of the time information table is set to “00” in advance. Further, the display instruction flag 507 notified from the private branch exchange (PBX) 100 is operated by “display compulsory”, so that the time of the booth (dummy time) is changed to the PHS wireless slave when it moves and enters the booth. It can be automatically displayed on the screen 104.

  Since the PHS wireless slave device 104 is under the wireless zone 2103 of the wireless base station 2102 at the rented entrance 2101, the private exchange (PBX) 100 system regular time notified by the wireless base station 2102 is “9 o'clock”. “30 minutes 10 seconds” is displayed on the screen. Next, by passing through the entrance 2109 of the booth A 2108, the radio base station that the PHS radio slave unit 104 waits for is switched from the radio base station 2111 or 2113 of the booth A 2108 to the first USCCH in FIGS. 8 and 9 described above. When the frame and the second frame are received, “10:30:10” which is the New York standard time of booth A is automatically captured and displayed on the screen.

  Then, the PHS wireless slave device 104 exiting the exit 2110 of the booth A2108 automatically switches to the private branch exchange (PBX) 100 system normal time again because the standby wireless base station is switched from 2113 to the wireless base station 2004, and the screen is displayed. Is displayed. Thereafter, similarly, in booth B2115, it automatically switches to Italian standard time distributed by radio base station 2117, and in booth C2119, to virtual country standard time distributed by radio base station 2121, without the user's consciousness.

  Further, as a function of the PHS wireless slave device 104, if the user recognizes that the time information is automatically switched, for example, “Do you want to change the time display?” On the screen of the PHS wireless slave device 104. Displaying or listening to the user with a warning sound, etc., can intentionally recognize the change in the display of time information, so that the user's anxiety can be dispelled and the attractions at each booth can be enjoyed Can do. Furthermore, it is possible to provide a service in which attractions and dummy times are linked.

  Furthermore, as an application example of the present invention, in a broadcasting station (mass media such as a TV station or a radio station), at the time of overseas relay (between the Japanese booth and the overseas booth) or the local staff at the location, It is possible to unify and share the start and end times during live broadcasting and the CM insertion time display, and automatically return to the correct time after the end of relaying.

  In addition, if the present invention is applied to an exhibition hall such as a booth of each country such as an international exposition, the time of that country is automatically displayed when entering a booth that is narrow in a divided area. You can easily use different greetings. In addition, it is possible to change and return time information without any user operation in the wholesale market, various bid halls, and lecture halls as well. Operation can be provided in real time without user intervention.

  As described above, in this embodiment, when the time information notification message is transmitted from the radio base station to the PHS radio handset, it is a channel or message defined by the RIB standard RCR STD-28. The user applies a channel or message that can be used independently as an option, and transmits the message. Therefore, when notifying the time information to the PHS wireless handset that is not in a call state, by using the USCCH that is the control information of the wireless base station, the wireless line is used by unnecessary call connection (outgoing / receiving control). There is an advantage of not increasing. In addition, a general-purpose PHS wireless slave unit can be used in the present system if it is used only for a simple call without affecting a normal (general-purpose) PHS wireless slave unit.

  By using this embodiment, the dummy time is not only for distributing different time information among the radio base stations, but also for a plurality of radio base stations (for example, floor units or department units). It is possible to distribute the dummy time by setting on the private branch exchange (PBX), and the PHS wireless handset only receives the radio wave of the wireless base station, or receives the time information after the call ends, Can notify different dummy times, and can be operated in the effect of the above-described invention.

100 Private branch exchange (PBX)
101 to 103 wireless base stations 104 to 105 PHS wireless slave unit 106 public network 107 private line network 108 extension telephone 109 maintenance terminal 208 private branch exchange (PBX) time information management unit 209 private branch exchange (PBX) time information distribution unit 210 Time information holding unit 312 of the private branch exchange (PBX) Time information reception processing unit 313 of the radio base station Time information management unit 314 of the radio base station Time information distribution processing unit 316 of the radio base station Time information holding unit 416 of the radio base station Time information reception processing unit 417 of the wireless slave unit Time information management unit 418 of the PHS wireless slave unit Time information holding unit of the PHS wireless slave unit

Claims (8)

A wireless communication system comprising an exchange, at least one or more base stations connected to the exchange, and at least one wireless slave that maintains a first time and performs wireless communication with the base station,
The exchange is
First time information holding means for holding a plurality of pieces of time information including time, base station identification information of at least one base station to which the time is distributed , and group information for managing the base station as a group When,
Anda first time information distribution means for distributing the time information to the base station,
The base station
First time information receiving means for receiving the time information distributed from the exchange;
Second time information holding means for holding the received time information;
Second time information distribution means for informing the wireless slave device of the held time information;
It has a first time information management unit for correcting the time of the base station, and
The wireless slave is
Group information holding means for holding in advance at least one group information among the group information included in the plurality of time information;
Second time information receiving means for receiving the time information broadcast from the base station;
Second time information management means for determining whether to retain the received time information;
Anda third time information holding means for holding the time information received in response to the determination of the second time information management unit,
In the exchange, the first time information distribution unit includes the base station identification information corresponding to the distribution target base station among the plurality of time information held by the first time information holding unit. Deliver the time information to the delivery target base station,
The base station
The first time information receiving means receives the time information distributed from the exchange;
When the second time information holding means holds the received time information,
The first time information management means corrects the time of the base station using the time included in the held time information,
The second time information distribution means notifies the held time information to the wireless slave unit,
The wireless slave is
The second time information receiving means receives the time information broadcast from the base station in a standby state;
The second time information management means compares the group information included in the received time information with the group information held in advance in the group information holding means,
If they match, the received time information is held by the third time information holding means, and the time included in the held time information is held as a second time. system. The wireless communication system according to claim 1, wherein
The wireless communication system, wherein the time information held in the exchange further includes information for causing the wireless slave device to perform a predetermined process. The wireless communication system according to claim 2,
The wireless slave device further includes a display unit,
The wireless communication system, wherein the information for performing the predetermined process is information as to whether or not to display the second time held by the wireless slave unit on the display unit. The wireless communication system according to claim 1, wherein
The time information held in the exchange further includes wireless slave device identification information for notifying the time information to the wireless slave device in a call state,
The wireless communication system, wherein the exchange notifies the time information to the wireless slave device in a call state corresponding to the wireless slave device identification information. In an exchange accommodating at least one base station,
Time information holding means for holding a plurality of pieces of time information including time, base station identification information of the base station to which the time is distributed, and group information for managing the base station as a group;
Exchange and having a time information delivery means for the time information be distributed to the base station of the distribution target containing the base station identification information corresponding to the base station of the distribution target in each group. The exchange according to claim 5,
The exchange communicates with the wireless slave through the base station,
The time information held by the time information holding means further includes wireless slave device identification information for notifying the time information to the wireless slave device in a call state,
2. The exchange according to claim 1, wherein the time information distribution means notifies the time information to the wireless slave device in a call state corresponding to the wireless slave device identification information. In the wireless slave device that performs the wireless communication with the exchange via the base station and holds the first time,
Group information holding means for holding group information of a group to which the wireless slave belongs,
Time information receiving means for receiving time and time information including group information of the group using the time;
Time information management means for determining whether to retain the received time information;
Anda time information holding means for holding the time information received in response to the determination of the time information management unit,
The time information management means compares the group information included in the received time information with the group information held in advance in the group information holding means,
If they match, the received time information is held by the time information holding means, and the time included in the held time information is held as a second time. The wireless slave device according to claim 7,
A display unit;
The time information management means determines whether or not to display the held second time on the display unit.

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