JP2004159358A - Radio mobile station - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To report appropriate location information based on the relation with a call. <P>SOLUTION: A communication control part 601 of a radio mobile station communicates with a base station. A server number holding part 607 holds the server numbers for identifying a server which requests a location information call from the mobile station. A control part 602 retrieves the server numbers, which are stored in a call set-up message sent from the base station. If there is a number that matches the server number held in the server number holding part 607, the control part 602 instructs the communication control part 601 to report the radio conditions to the base station. If no number matches the server number held in the server holding part 607, the location information call request from the server is rejected. <P>COPYRIGHT: (C)2004,JPO

Description

  The present invention relates to a wireless mobile station in mobile wireless communication.

  A method for specifying the current position of a mobile station based on electric field strengths from a plurality of peripheral base stations measured by the mobile station, using a wireless communication method that forms a service area by a plurality of wireless zones such as a PHS. Conventionally, in order to report electric field strength information measured by a mobile station to a location information server or to request a report from the location information server to the mobile station, data communication using PIAFS or modem communication has been performed.

  However, in the above-described location information reporting method, a call is connected between the location information server and the mobile station, and communication is performed at a higher layer, so that connection and negotiation take time, and a load such as consumption of power due to communication is reduced. Is also big. Normally, mobile stations are also used as telephones, so if you connect a call to report location information, if you use location reporting at regular time intervals, the number of active calls will increase, There is also a problem that it is difficult to make a telephone call.

  The present invention has been made in view of the above, and an object of the present invention is to provide a wireless mobile station capable of reporting good location information based on a relationship with a call.

  The wireless mobile station according to the present invention includes a communication unit that communicates with the base station, a holding unit that holds a server number for identifying a server that makes a position information call request to the mobile station, and a communication unit that is transmitted from the base station. The server number stored in the call setup message is extracted, and if there is a server number that matches the server number held in the holding means, the communication means is instructed to report a wireless state to the base station, If there is no server number that matches the server number held in the means, a control means for rejecting the location information call request from the server is adopted.

  ADVANTAGE OF THE INVENTION According to this invention, the report of favorable position information based on the relationship with a call can be performed.

(Embodiment 1)
The operation of the first embodiment to which the PHS wireless mobile station position information reporting method of the present invention is applied will be described with reference to the drawings.

  1 is a system configuration of a PHS wireless communication system to which the location information reporting method of the present invention is applied, FIG. 2 is a configuration of a mobile station in FIG. 1, FIG. 3 is a location information report sequence of the present system, and FIG. FIG. 5 shows the contents of the message, and FIG. 5 shows the bit configuration of the option definition of the paging service type, which is a component in the location information call message.

  In FIG. 1, 101 is a PHS mobile station, 111, 112, and 113 are base stations, 121 is a network, 131 is a location information server, and 132 is a communication control of a location information server 131 that performs transmission and reception with the network 121 and controls location detection processing. Reference numeral 133 denotes a position detection device that detects a position instructed by the communication control unit 132.

  2, reference numeral 201 denotes a communication control unit that performs communication with the base station 111 in FIG. 1, 202 denotes a control unit that performs transmission / reception by the communication control unit and other controls, and 203 denotes a destination that holds the type of incoming call at the time of an incoming call request. A call type holding unit 204 is an electric field intensity measuring unit that measures the electric field intensity of the peripheral base station according to the type held by the incoming call type holding unit, and 205 is an electric field that holds the electric field intensity information measured by the electric field intensity measuring unit 204. It is a strength holding unit.

  FIG. 3 shows a sequence from when the location information server 131 requests the mobile station 101 for the electric field strength information as the location information to when the mobile station 101 reports to the location detection server 131. This sequence uses the sequence specified in the second generation cordless telephone system standard RCR STD-28.

  The flow from requesting position information to reporting will be described according to this sequence. The location information server 131 issues a location information call request to the mobile station 101 from the communication control unit 132 to the network 121. The network 121 makes a position information call request to a base station in the paging area of the mobile station 101. The mobile station 101 receives a location information call from the base station 111.

  FIG. 4 shows the structure of an incoming call message defined in RCR STD-28, which is a standard for the second generation cordless telephone system. FIG. 5 shows the bit configuration of the paging service type of the information element in the first octet of the incoming message.

  In the private use, as shown in FIG. 5, three bits of a paging service type can be used as an option "11x" (x is arbitrary). For example, an option “110” is defined as a location information call. A normal incoming call such as a telephone call is defined as “111”.

  1 to 3, when the communication control unit 201 of the mobile station 101 receives a message that is a location information incoming PCH (L) from the base station 111, the control unit 202 interprets the message. When it is determined that the acceptance message is a call request, the control unit 202 interprets the call service type and stores the type of the position information call request in the call type holding unit 203, for example, “ON” if the position information call is received. When the incoming call is "ON", the control unit 202 instructs the electric field intensity measuring unit 204 to measure the electric field intensity. Upon receiving the field strength measurement instruction from the control unit 202, the field strength measurement unit 204 measures the field strength of up to eight base stations in the vicinity, and writes the measured base station ID and field strength information in the field strength holding unit 205.

  Thereafter, the mobile station 101 performs a normal incoming call sequence to the base station 111 to establish a link channel. When the link channel is established, the control unit 202 of the mobile station 101 checks the type of the location information incoming request held by the incoming call type holding unit 203. When the type of the location information call request is “ON”, the control unit 202 of the mobile station 101 uses the RT (wireless management) wireless state report message from the communication control unit 201 to store the base station ID held in the field strength holding unit 205. And the electric field strength to the base station 111, and the base station 111 reports to the location information server 131 via the network 121. Upon receiving the electric field strength report, the position information server 131 sends a disconnection request to the network 121, and sends a NOP from the network 121 to the base station 111. The base station 111 sends a disconnection message to the mobile station and performs a disconnection control sequence.

  Upon receiving the wireless status report from the mobile station 101, the location information server specifies the location of the mobile station 101 based on the information. Post-processing for position detection, such as a method for specifying the position of the mobile station from the electric field strength of the peripheral base station and displaying the position of the specified result, is not specifically mentioned here. Also, an example in which the radio status of up to eight base stations is reported has been described here, but it is clear that the number of base stations to report can be set depending on the system and as needed.

  As described above, according to the present embodiment, the mobile station is provided with the incoming call type holding unit, the electric field strength measuring unit, and the electric field strength holding unit, and the call service type of the incoming call message in the PHS incoming call sequence is located. By defining the option for detection, it can be determined that the request for position detection information is being requested, and the base station ID and field strength information, which are state information, can be reported using the existing RT radio state report message, Location information can be reported at high speed without connecting a call.

(Embodiment 2)
The operation of the position information reporting method of the PHS wireless communication system according to the second embodiment to which the state reporting method of the PHS wireless mobile station of the present invention is applied in addition to the first embodiment will be described with reference to the drawings.

  FIG. 6 shows a configuration of the mobile station 101 in FIG. 1, and FIG. 7 shows a position information report sequence according to the second embodiment of the present system.

  6, reference numeral 601 denotes a communication control unit for communicating with the base station 111 in FIG. 1, 602 denotes a control unit for performing transmission / reception and other controls in the communication control unit, and 603 denotes an incoming call type for holding a type at the time of an incoming call request. A holding unit 604 is an electric field intensity measuring unit that measures the electric field intensity of the peripheral base station according to the type held by the incoming call type holding unit 603, and 605 is an electric field intensity that holds the electric field intensity information measured by the electric field intensity measuring unit 604. A holding unit 606 is an input unit for registering a position information server number that receives and responds to a position information report request, and 607 is a server number holding unit that holds the server number input by the input unit 606.

  FIG. 7 shows a sequence from when the location information server 131 in FIG. 1 requests the mobile station 101 for the field strength information as the location information to when the mobile station 101 reports to the location detection server 131.

  First, in FIG. 6, an operation from reception of registration of a position information server number to storage of the position information server number for determining whether to receive and respond to a position information request from the position information server will be described.

  From the input unit 606, the number of the server that accepts and responds to the position information request is input. The server number is a number for identifying a server. Here, for the sake of simplicity, an example in which the server number is identified by a telephone number will be described.

  The input method is generally a key input from the terminal of the mobile station, but does not particularly mention the input method. When receiving the input of the server number from input unit 606, control unit 602 stores the server number in server number holding unit 607. The number of server numbers that can be stored in the server number holding unit 607 is one or more.

  Next, a flow from when the location information server 131 in FIG. 1 requests location information to the mobile station 101 until the mobile station 101 reports to the location information server according to the sequence in FIG. 7 will be described with reference to FIG. After the position information server 131 in FIG. 1 issues a position information call request for the mobile station 101 to the network 121 from the communication control unit 132, the link channel is thereafter transmitted between the mobile station 101 and the base station 111 in a normal call sequence. The operation up to establishment is the same as in the first embodiment.

When the link channel is established, the mobile station 101 returns an incoming call response message to the base station 111, and the base station 111 sends a call setup message to the mobile station 101. When the mobile station 101 receives the call setting message from the base station 111, the control unit 202 of the mobile station 101 checks the type of the position detection request held by the incoming call type holding unit 603, and if "on", the server number is The calling number, which is an information element in the stored call setup message, is extracted and compared with the server number held in the server number holding unit. If there is a match between the extracted calling number and the server number held by the server number holding unit 607, the control unit 602 of the mobile station 101 instructs the communication control unit 601 to use the RT radio status report message to send the electric field strength. The base station ID and the electric field strength information held by the holding unit 605 are autonomously transmitted to the base station 111, and the base station 111 reports the information to the position information server 131 via the network 121.

  The following operation is the same as that of the first embodiment, but in the present embodiment, a process for disconnecting and releasing a call that has been set is included as post-processing.

  If there is no match between the calling number extracted from the information element of the call setting message and the server number registered in the server number holding unit, the server rejects the position detection request from the server and disconnects the server as it is. The response can be changed depending on the calling number such as notification.

  As described above, according to the present embodiment, in addition to the configuration of the first embodiment, an input unit and a server number holding unit are added to a mobile station, a location information call is made from a location information server, and a call sequence When the call setup message arrives, the server requesting the location information is selected on the mobile station side by checking the server number in the message, and only the selected server can be responded, thereby improving system security.

(Embodiment 3)
The operation of the reporting system of the PHS wireless communication system according to the third embodiment to which the status reporting system of the PHS wireless mobile station of the present invention is applied will be described with reference to the drawings.

  FIG. 8 shows the configuration of mobile station 101 in FIG. 1 according to the third embodiment, and FIG. 9 shows a position information report sequence.

  8, reference numeral 801 denotes a communication control unit of the mobile station 101 that communicates with the base station 111 in FIG. 1, 802 denotes a control unit that performs transmission / reception and other control by the communication control unit 801, and 803 denotes a call request and the position in FIG. An input unit for issuing a position detection request instruction to the information server 131, a request type holding unit 804 for holding the type of request specified from the input unit, and 805 measuring the electric field strength of the peripheral base station according to an instruction from the control unit 802 An electric field intensity measuring unit 806, an electric field intensity holding unit for holding electric field intensity information measured by the electric field intensity measuring unit 805, and a display unit 807 for displaying a position detection result obtained from the position information server.

  FIG. 9 shows a sequence from when the mobile station 101 in FIG. 1 reports the electric field strength information as the position information to the position information server 131 to when the position detection server 131 detects the position and reports it to the mobile station 101. I have. The flow from when the mobile station reports position information to the position information server in accordance with this sequence until the position information server notifies the position detection result will be described with reference to the configuration of the mobile station in FIG.

  In FIG. 8, control unit 802 waits for position detection or call request instruction from input unit 803.

The position detection start request from the input unit 803 may be requested by the user pressing a specific button, or may be requested periodically by setting a timer, but the method is not particularly defined here. When a position detection start request or a call request is issued from the input unit 803, the control unit 802 writes a state in the request type holding unit 804. Here, the state is the type of the request input from the input unit. For example, the type “1” is written when the position detection start request is raised, and the type “0” is written when the call request is raised. The control unit 802 checks the type held by the request type holding unit 804, and when the type is “1”, issues a field strength measurement instruction of the neighboring base station to the field strength measurement unit 805, and the field strength measurement unit 805 checks the maximum 8 The electric field intensity of the peripheral base station is measured, and the base station ID and the electric field intensity are stored in the electric field intensity holding unit 806. The control unit 802 is a communication control unit 80
1 instructs a link channel to be established, and thereafter, the communication control unit 801 of the mobile station 101 performs a normal transmission control sequence to the base station 111 to establish a link channel. When the link channel is established and the call setting is accepted, the control unit 802 of the mobile station 101 checks the request type holding unit 804, and if the type is "0", performs a normal call sequence. When the type is “1”, that is, at the time of a position detection request, a position detection start request message is sent to the base station 111 via the communication control unit 802. When the base station 111 sends a position detection start request to the network 121 and the network 121 sends a position detection start request to the position detection server 131, the communication control unit 132 of the position detection server 131 passes a plurality of base station IDs and field strength information to the position detection device 133. , The position of the mobile station 101 is specified. The communication control unit 132 notifies the network 121 of the specified position information, the network 121 notifies the base station 111 of the position information, and the base station 111 sends a position information notification message to the mobile station 101 to notify the mobile station 101 of the position detection result. Upon receiving the position detection result from the base station 111 via the communication control unit 801, the control unit 802 performs a disconnection control sequence and displays the detection result on the display unit 807.

  Here, the configuration of a newly defined position detection start request message and a position information notification message notified from the base station 111 to the mobile station 101 will be described.

  These definition messages are sent using an associated control channel, SACCH (slow associated control channel) or FACCH (high-speed associated control channel).

  FIG. 10 shows an example of the content of a position detection start request message. 1001 indicates an information element of the position detection start request message. The protocol identifier, which is the first information element, is as specified in RCR STD-28.

  The message type, which is the second information element of 1001, is defined as “01100001” by using “011” defined as the option message in the 8th to 6th bits from the definition. The position information report condition, which is the third information element, is an information element newly defined here. As shown by 1002, the first octet and the eighth bit are set to “0” of a plurality of octet information elements by definition, and the option definition Therefore, the seventh bit is defined as "1", and the sixth to first bits are defined as "000001". The start / stop information of the periodic report of the location information is designated in the second octet of 1002, and the report interval is designated in seconds in the third and fourth octets. The zone status report, which is the fourth information content of 1001, uses an information element that has already been defined, as indicated by 1003.

  FIG. 11 shows an example of the content of the position information notification message. Reference numeral 1101 denotes an information element of the position information notification message. The protocol identifier as the first information element is as specified. The message type, which is the second information element of 1101, is defined as "01100010" using "011" defined for the option message in 8 to 6 bits. The position information report condition, which is the third information element, is an information element newly defined here. As shown in 1102, the first octet and the eighth bit are defined as 0 of a plurality of octet information elements by definition, and an option is defined. The seventh bit is set to 1, and the sixth to first bits are defined as "0000010". The position information specifies the X coordinate in the second to fifth octets of 1002 and the Y coordinate in the sixth to ninth octets, with a certain point as the origin. Here, the position expression is represented by X and Y coordinates for simplicity, but it is apparent that various expression methods such as latitude and longitude, streets, towns, and room names can be considered. Here, the operation of the method of reporting the location information from the mobile station to the location information server and notifying the detection result from the server to the mobile station has been described. Similarly, by defining a message on the FACCH or SACCH, the location information can be obtained. It is apparent that the server can request the mobile station for the location information, and the mobile station can easily report the field strength information as the location information.

  As described above, according to the present embodiment, a message is defined for location information reporting using the FACCH or SACCH regardless of whether it is private or public, so that a mobile station can connect to a location information server without connecting a call. The location information can be reported, and the location detection result can be reported from the server to the mobile station, or conversely, the location information server can request the location information from the mobile station, and the mobile station can report the field strength information, which is the location information. In addition, it is possible to perform high-speed position information reporting with a high degree of freedom in information content to be reported.

  In addition, by using FACCH and SACCH, which are auxiliary control channels for transmitting data even while a call is connected, a location information request interrupt from a location information server is performed during a call, and the electric field strength measured immediately before the call is determined by the mobile station. Can report to the location information server.

  The operation of the method of notifying the mobile station has been described. Similarly, by defining a message on the FACCH, the SACCH, or the like, the location information server requests the mobile station for location information, and the mobile station receives the location information. It is clear that reporting field strength information can also be easily achieved.

FIG. 3 is a configuration diagram of a position information reporting method of a PHS wireless mobile station according to the first, second, and third embodiments of the present invention. Configuration diagram of mobile station according to Embodiment 1 Position information report sequence diagram according to Embodiment 1 Conceptual diagram showing contents of location information incoming message according to Embodiment 1. Bit configuration diagram of option definition of call service type according to Embodiment 1 Configuration diagram of mobile station according to Embodiment 2. Position information report sequence diagram according to Embodiment 2 Configuration diagram of mobile station according to Embodiment 3. Position information report sequence diagram according to Embodiment 3 Conceptual diagram showing contents of location detection start request / wireless status report message according to Embodiment 3. Conceptual diagram showing contents of location information notification message according to Embodiment 3.

Explanation of reference numerals

101 mobile station 111, 112, 113 base station 121 network 131 position information server 132, 201, 601, 801 communication control unit 133 position detection device 202, 602, 802 control unit 203, 603 incoming call type holding unit 204, 604, 805 Electric field intensity measurement units 205, 605, 806 Electric field intensity holding units 606, 803 Input unit 607 Server number holding unit 804 Request type holding unit 807 Display unit 1001 Information element content 1002 of position detection start request / wireless status report message Position information report condition 1002 Information element content 1003 Zone status report information element content 1101 Location information notification message information element content 1102 Location information element content

Claims (1)

Communication means for communicating with the base station;
Holding means for holding a server number for identifying a server making a position information call request to the mobile station;
Extract the server number stored in the call setup message sent from the base station,
If there is something that matches the server number held in the holding means, instructs the communication means to report the wireless state to the base station,
If there is no server number that matches the server number held in the holding unit, a control unit that rejects the location information call request from the server,
A wireless mobile station comprising:

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