USOO701 0306 B1
`
`(12) United States Patent
`Tanibayashi et al.
`
`(10) Patent No.:
`(45) Date of Patent:
`
`US 7,010,306 B1
`Mar. 7, 2006
`
`(54) LOCATION INFORMATION NOTIFYING
`METHOD AND LOCATION INFORMATION
`NOTIFYINGAPPARATUS
`(75) Inventors: Youichi Tanibayashi, Fujisawa (JP);
`Koichi Takahara, Tokyo (JP);
`Masahiro Kaiwa, Funabashi (JP);
`Hiroyuki Yamamoto, Yokohama (JP);
`Kaoru Nakajima, Yokohama (JP);
`Ichiro Inaba, Nagoya (JP); Yuichiro
`Tsutsui, Tokyo (JP)
`(73) Assignee: NTT Docomo, Inc., Tokyo (JP)
`(*) Notice:
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 535 days.
`(21) Appl. No.:
`09/786,818
`(22) PCT Filed:
`Jul. 31, 2000
`(86) PCT No.:
`PCT/JP00/05142
`S371 (c)(1),
`(2), (4) Date: Mar. 9, 2001
`(87) PCT Pub. No.: WO01/09731
`PCT Pub. Date: Feb. 8, 2001
`Foreign Application Priority Data
`(30)
`Jul. 29, 1999
`(JP)
`................................. 11-214750
`Sep. 7, 1999
`(JP)
`................................. 11-253,670
`(51) Int. Cl.
`(2006.01)
`H04O 7/20
`(52) U.S. Cl. ............................... 455/4.56.1; 455/456.3;
`455/456.5; 455/456.6; 455/432.1
`(58) Field of Classification Search ............. 455/432.1,
`455/432.2,456.1, 456.2, 456.3, 456.5, 456.6
`See application file for complete Search history.
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
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`5,337,242 A 8/1994 Yamamoto et al.
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`5,774,802 A * 6/1998 Tell et al. ................... 455/408
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`6,122,520 A 9/2000 Want et al. ................. 455/456
`6,138,003 A * 10/2000 Kingdon et al. ..
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`6,169,897 B1
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`
`
`
`(Continued)
`FOREIGN PATENT DOCUMENTS
`
`GB
`
`2322248 A 8/1998
`
`(Continued)
`Primary Examiner-Stephen D’Agosta
`(74) Attorney, Agent, or Firm-Brinks Hofer Gilson &
`Lione
`
`(57)
`
`ABSTRACT
`
`The present invention aims to provide a common platform
`for providing location information, which provision corre
`sponds to network integration. In the present invention, a
`location information providing unit of a gateway Server
`obtains from a position measuring center location informa
`tion of mobile communication terminals. The location infor
`mation of each mobile communication terminal may gener
`ated in different representational formats. A location
`information providing unit converts the obtained location
`information into representational formats that are capable of
`being handled by IP servers. Following conversion, the
`location information providing unit transmits the location
`information the IP servers.
`
`62 Claims, 24 Drawing Sheets
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`12
`
`SIMPLIFED
`CELLULAR
`TELEPHONE
`NETWORK
`
`CELLULAR
`TELEPHONE
`NETWORK
`
`MOBILE PACKET
`COMMUNICATION
`NETWORK
`
`Apple Exhibit 1009
`Page 1 of 52
`
`

`

`US 7,010,306 B1
`Page 2
`
`U.S. PATENT DOCUMENTS
`6,208.866 B1
`3/2001 Rouhollahzadeh et al. . 455/456
`6,226,522 B1
`5/2001 Higuchi ...................... 455/456
`6,292,743 B1
`9/2001 Pu et al. ..................... 701/202
`6,311060 B1
`10/2001 Evans et al... 455,426
`6,332,127 B1 12/2001 Bandera et al. ............... 705/14
`6,353,398 B1
`3/2002 Amin et al. ................ 340/995
`6,377.793 B1
`4/2002 Jenkins ..........
`... 455/412
`6,381,465 B1
`4/2002 Chern et al. ................ 455/466
`6,385.465 B1
`5/2002 Yoshioka .................... 455/564
`6,397,057 B1
`5/2002 Malackowski et al. ..... 455/414
`6,400,956 B1
`6/2002 Richton ...................... 455/456
`6,496,701 B1* 12/2002 Chen et al. .............. 455/456.5
`6,505.048 B1
`1/2003 Moles et al. ...
`... 455/456
`6,519,466 B1
`2/2003 Pande et al. ................ 455/456
`6,522,265 B1* 2/2003 Hillman et al. ............. 340/988
`6,580,904 B1* 6/2003 Cox et al.......
`455/456.2
`6,609,005 B1
`8/2003 Chern ........................ 455/457
`6,677,894 B1
`1/2004 Sheynblat et al. ....... 342/357.1
`6,731,940 B1
`5/2004 Nagendran - - - - - - - -
`455/4.56.1
`2003/0069029 A1
`4/2003 Dowling et al. ............ 455/456
`FOREIGN PATENT DOCUMENTS
`
`
`
`GB
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`
`2322248
`63-199528
`3-120995
`4-213258
`5-831.89
`5-102906
`6-165246
`6-261150
`O7-105494
`
`* 8/1998
`8/1988
`5/1991
`8/1992
`4/1993
`4/1993
`6/1994
`9/1994
`4/1995
`
`JP
`R
`JP
`E
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`JP
`KR
`WO
`
`O7-131852
`"...
`8-289355
`9-54895
`9-153054
`9-172672
`09-215041
`10-1485.42
`10-164643
`10-170625
`10-171727
`10-1914.09
`10-221106
`2868500
`11-27728
`11-27729
`11-41276
`11-51678
`11-53278
`11-94923
`29084O6
`11-133135
`11-15SO25
`11-178047
`11-351903
`2000-4482
`2000-55686
`1998-031026
`WO 98/54922
`
`* cited by examiner
`
`5/1995
`y /1996
`11/1996
`2/1997
`6/1997
`6/1997
`8/1997
`6/1998
`6/1998
`6/1998
`6/1998
`7/1998
`8/1998
`12/1998
`1/1999
`1/1999
`2/1999
`2/1999
`2/1999
`4/1999
`4/1999
`5/1999
`6/1999
`7/1999
`12/1999
`1/2000
`2/2000
`7/1998
`12/1998
`
`Apple Exhibit 1009
`Page 2 of 52
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`

`

`U.S. Patent
`
`Mar.7, 2006
`
`Sheet 1 of 24
`
`US 7,010,306 B1
`
`Cam
`0920See
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`Apple Exhibit 1009
`Page 3 of 52
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`Apple Exhibit 1009
`Page 3 of 52
`
`
`
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`
`

`

`U.S. Patent
`
`Mar. 7, 2006
`
`Sheet 2 of 24
`
`US 7,010,306 B1
`
`
`
`FIG. 2
`
`3
`
`CONTROL
`UNIT
`
`GPS
`RECEIVER
`
`WRELESS
`UNIT
`
`USER INTERFACE
`UNIT
`
`Apple Exhibit 1009
`Page 4 of 52
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`

`

`U.S. Patent
`
`Mar.7, 2006
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`Sheet 3 of 24
`
`US 7,010,306 B1
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`Apple Exhibit 1009
`Page 5 of 52
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`Apple Exhibit 1009
`Page 5 of 52
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`
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`

`

`U.S. Patent
`
`Mar. 7, 2006
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`Sheet 4 of 24
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`US 7,010,306 B1
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`Apple Exhibit 1009
`Page 6 of 52
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`

`

`U.S. Patent
`
`Mar. 7, 2006
`
`Sheet 5 of 24
`
`US 7,010,306 B1
`
`FIG. 8
`
`S1
`
`S2
`Y
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`LOCATION INFORMATION
`REQUEST RECEIVED
`
`LATTUDE
`AND LONGITUDE?
`
`
`
`REFER TO LOCATION
`INFORMATION
`
`LOCATION INFORMATION
`CONVERSION REQUEST
`
`OBTAN LOCATION
`NFORMATION AFTER
`CONVERSION
`
`NOTIFY LOCATION
`NFORMATION
`
`OBTAN LATTUDE
`AND LONGITUDE
`
`S7
`
`Apple Exhibit 1009
`Page 7 of 52
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`

`

`U.S. Patent
`
`Mar. 7, 2006
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`Sheet 6 of 24
`
`US 7,010,306 B1
`
`F G. 9
`
`START
`
`00ATION INFORMATION - S11
`REQUEST RECEIVED
`
`REFER TO LOCATION
`INFORMATION
`
`LOCATION INFORMATION
`CONVERSION REQUEST
`
`OBTAN LOCATION
`INFORMATION AFTER
`CONVERSION
`
`NOTFY LOCATION
`INFORMATION
`
`END
`
`S12
`
`S13
`
`S14
`
`S15
`
`Apple Exhibit 1009
`Page 8 of 52
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`

`

`U.S. Patent
`
`Mar. 7, 2006
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`Sheet 7 of 24
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`US 7,010,306 B1
`
`0/
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`ŒC 007
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`
`Apple Exhibit 1009
`Page 9 of 52
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`

`

`U.S. Patent
`
`Mar. 7, 2006
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`Sheet 8 of 24
`
`US 7,010,306 B1
`
`F.G. 11
`
`AREA D
`
`REGION NAME
`
`AREAOO1
`
`EAST TOKYO
`
`FIG. 12
`
`
`
`
`
`SECTOR ID
`SECOO1
`
`REGION NAME
`1-CHOME, TORANOMON,
`MINATO-KU, TOKYO
`
`F.G. 13
`
`
`
`
`
`
`
`
`
`P SERVER NAME
`
`P SERVER 90A
`P SERVER 90B
`
`LOCATION INFORMATION
`PRECISION
`
`HIGH-PRECISION
`MEDUM-PRECISION
`
`P SERVER 90C
`
`MEDIUM-PRECISION
`
`Apple Exhibit 1009
`Page 10 of 52
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`

`

`U.S. Patent
`
`Mar. 7, 2006
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`Sheet 9 of 24
`
`US 7,010,306 B1
`
`F.G. 14
`
`START
`
`RECEIVE LOCATION
`INFORMATION REQUEST
`
`- OBTAIN LOCATION
`INFORMATION
`
`OBTAIN PRECISION
`INFORMATION
`
`LOCATION
`NFORMATION CONVERSIO
`NECESSARY
`
`
`
`
`
`REQUEST LOCATION
`INFORMATION CONVERSION
`
`OBTAN LOCATION
`INFORMATION AFTER
`CONVERSION
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`Sa1
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`Sa2
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`Sa3
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`
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`INFORMATION
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`Sa/
`
`Apple Exhibit 1009
`Page 11 of 52
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`

`

`
`
`500A
`
`U.S. Patent
`U.S. Patent
`
`FIG.15
`
`300
`
`200
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`
`Mar.7, 2006
`
`Sheet 10 of 24
`
`US 7,010,306 B1
`US 7,010,306 B1
`
`500B
`
`Apple Exhibit 1009
`Page 12 of 52
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`Apple Exhibit 1009
`Page 12 of 52
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`U.S. Patent
`U.S. Patent
`
`
`
`Mar. 7
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`’
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`2006
`
`Sheet 11 of 24
`
`US 7
`
`306 B1
`010,306 BI
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`Apple Exhibit 1009
`Page 13 of 52
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`Apple Exhibit 1009
`Page 13 of 52
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`

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`U.S. Patent
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`Mar. 7, 2006
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`Sheet 12 of 24
`
`US 7,010,306 B1
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`F.G. 17
`
`
`
`ALLOW ME TO PROVIDE YOU WITH WARIOUS SHOP
`
`INFORMATION IN YOUR WICINITY.
`
`RESTAURANT INFORMATION
`
`MOVE THEATER INFORMATION
`
`MUSEUM INFORMATION
`
`REGISTRATION OF TRACKING INFORMATION PROVISION
`
`ABOUT THIS SERVICE
`
`Apple Exhibit 1009
`Page 14 of 52
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`U.S. Patent
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`Mar. 7, 2006
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`Sheet 13 of 24
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`US 7,010,306 B1
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`
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`Apple Exhibit 1009
`Page 15 of 52
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`U.S. Patent
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`Mar.7, 2006
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`Sheet 14 of 24
`
`US 7,010,306 B1
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`Apple Exhibit 1009
`Page 16 of 52
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`Apple Exhibit 1009
`Page 16 of 52
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`

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`U.S. Patent
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`Mar. 7, 2006
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`Sheet 15 of 24
`
`US 7,010,306 B1
`
`FIG. 20
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`BASE STATION ID | REGION CODE
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`Apple Exhibit 1009
`Page 17 of 52
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`U.S. Patent
`
`Mar. 7
`9
`
`2006
`
`Sheet 16 of 24
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`US 7,010,306 B1
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`Apple Exhibit 1009
`Page 18 of 52
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`U.S. Patent
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`Mar. 7, 2006
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`Sheet 17 Of 24
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`US 7,010,306 B1
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`Apple Exhibit 1009
`Page 19 of 52
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`

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`U.S. Patent
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`Mar. 7, 2006
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`Sheet 18 of 24
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`US 7,010,306 B1
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`Apple Exhibit 1009
`Page 20 of 52
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`

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`U.S. Patent
`
`Mar. 7, 2006
`
`Sheet 19 of 24
`
`US 7,010,306 B1
`
`FG. 23
`
`BASE STATION ID
`
`MOBILE STATION ID
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`Apple Exhibit 1009
`Page 21 of 52
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`U.S. Patent
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`Mar. 7, 2006
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`Sheet 20 of 24
`
`US 7,010,306 B1
`
`FG. 24
`MOBILE STATION ID | POSITION REGISTRATION AREA D
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`Apple Exhibit 1009
`Page 22 of 52
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`U.S. Patent
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`Mar.7, 2006
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`Sheet 21 of 24
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`US 7,010,306 B1
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`Page 23 of 52
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`Apple Exhibit 1009
`Page 23 of 52
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`U.S. Patent
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`Mar.7, 2006
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`Sheet 22 of 24
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`Apple Exhibit 1009
`Page 24 of 52
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`Apple Exhibit 1009
`Page 24 of 52
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`

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`U.S. Patent
`
`Mar. 7, 2006
`
`Sheet 23 of 24
`
`US 7,010,306 B1
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`Apple Exhibit 1009
`Page 25 of 52
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`

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`U.S. Patent
`
`Mar. 7, 2006
`
`Sheet 24 of 24
`
`US 7,010,306 B1
`
`FIG. 28
`MOBILE STATION | LOCATION INFORMATION
`D
`DISCLOSURE IP SERVER
`
`MSO901 1111111
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`P SERVER 5OOA
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`P SERVER 500B
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`P SERVER 5OOH
`
`MSO901 1111112
`
`P SERVER 500D
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`P SERVER 5OOM
`
`D OF MOBILE STATIONS WHICH DO NOT
`DISCLOSE LOCATION INFORMATION
`
`MSO901 1111122
`MSO901 1155555
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`
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`
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`
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`Apple Exhibit 1009
`Page 26 of 52
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`

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`US 7,010,306 B1
`
`1
`LOCATION INFORMATION NOTIFYING
`METHOD AND LOCATION INFORMATION
`NOTIFYING APPARATUS
`
`TECHNICAL FIELD
`
`The present invention relates to a location information
`notifying method and a location information notifying appa
`ratus for notifying location information of a mobile com
`munication terminal.
`
`BACKGROUND ART
`
`15
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`Mobile communication networks for mobile terminals
`Such as cellular telephones are capable of obtaining the
`current position of a mobile communication terminal. In
`recent years, various types of Systems for performing infor
`mation providing Services using location information
`obtained by Such mobile communication networks have
`been proposed. For example with PHS (Personal Handy
`phone System) networks, it is possible to determine within
`which base Station wireless Zone a mobile communication
`terminal is currently used, and a System for providing a
`position tracking Service using this location information is
`known.
`Also, a system wherein a GPS (Global Positioning Sys
`tem) is installed for mobile communication terminals and
`location information obtained by the GPS is used for a
`Service has also been proposed.
`The obtained location information of the mobile commu
`nication terminal differs in representational format accord
`ing to the position detection method employed by the mobile
`communication network. For example, with a PHS network,
`the location information is identification information (here
`after referred to as “base station ID") for identifying base
`Stations managing wireless Zones where mobile communi
`cation terminals are used, and with GPS, the location
`information is in the format of latitude and longitude,
`obtained by measuring the positions of mobile communica
`tion terminals.
`On the other hand, the representational format for the
`desired location information, the precision thereof, and
`communication protocol differ between the computer Sys
`tems which use Such location information and provide
`various types of Services.
`For example, there may be cases wherein handling of the
`location information in the latitude-and-longitude represen
`tational format is desired by the computer System applica
`tion, or there may be cases wherein obtaining the location
`information in the representational format corresponding to
`50
`administrative district is desired. Also, for example, com
`puter Systems which provide position tracking Services
`require relatively high-precision location information, but
`computer Systems which provide weather forecast informa
`tion at the location of where the mobile communication
`terminal require only relatively low-precision location infor
`mation. Further, even in the event that the representational
`format of the location information is the same for the mobile
`communication terminal side and the computer System Side,
`the method for obtaining the location information by the
`computer Systems differs according to the communication
`protocol which the application of the computer System
`Supports.
`Thus, as long as the representational formats and com
`munication protocols for location information differ accord
`65
`ing to the mobile communication network and the computer
`using the location information, Services dealing with net
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`work integration, which have been rapidly progressing in
`recent years, cannot be provided.
`
`DISCLOSURE OF INVENTION
`
`According to one aspect of the present invention, the
`position of a mobile communication terminal is detected and
`location information is generated, following which, in the
`event of notifying a first computer of location information,
`the representational format of the location information at the
`time of generating the location information is converted into
`a first representational format which the first computer is
`capable of handling, and on the other hand, in the event of
`notifying a Second computer of location information, the
`representational format of the location information at the
`time of generating the location information is converted into
`a Second representational format which the Second computer
`is capable of handling, and notification is made. Thus, a
`common platform for providing location information deal
`ing with integration of networks from the perspective of
`representation format of location information, can be pro
`vided.
`According to another aspect of the present invention,
`following detection of the position of the mobile commu
`nication terminal, the computer generates and notifies loca
`tion information having a precision which the computer
`requires. Thus, a common platform for providing location
`information dealing with integration of networks from the
`perspective of precision of location information, can be
`provided.
`Also, according to another aspect of the present invention,
`the position of the mobile communication terminal is
`detected and location information is generated, and the
`location information is added to data transmitted from the
`mobile communication terminal to the computer, thereby
`notifying the computer of the location information. Thus,
`location information of the mobile communication terminal
`can be Supplied to various computers in a form not depen
`dent on the Specifications of the mobile communication
`terminal.
`Also, according to another aspect of the present invention,
`upon receiving a request Signal from the computer request
`ing obtaining of the location information of the mobile
`communication terminal, the position of the mobile com
`munication terminal is detected in response to this request
`Signal and location information is generated, and this loca
`tion information is notified to the computer. Thus, the
`location information of the mobile communication terminal
`can be Supplied to various computers as a Standard interface
`protocol, in a form not dependent on the Specifications of the
`mobile communication terminal.
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`FIG. 1 is a block diagram illustrating the configuration of
`the overall network for executing the location information
`notifying method according to a first embodiment of the
`present invention.
`FIG. 2 is a block-diagram illustrating the configuration of
`a simplified cellular telephone according to this embodi
`ment.
`FIG. 3 is a block diagram illustrating the configuration of
`a cellular telephone provided with a GPS receiver, according
`to this embodiment.
`FIG. 4 is a format diagram illustrating an example of a
`Simplified cellular telephone network conversion table
`according to this embodiment.
`
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`Page 27 of 52
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`US 7,010,306 B1
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`3
`FIG. 5 is a format diagram illustrating an example of a
`cellular telephone network conversion table according to
`this embodiment.
`FIG. 6 is a format diagram illustrating an example of a
`mobile packet communication network conversion table
`according to this embodiment.
`FIG. 7 is a format diagram illustrating an example of a
`latitude and longitude receiver list table according to this
`embodiment.
`FIG. 8 is a flowchart illustrating the operation of the
`location information providing unit of a gateway Server
`according to this embodiment.
`FIG. 9 is a flowchart illustrating the operation of the
`location information providing unit of a gateway Server
`according to a variation of this embodiment.
`FIG. 10 is a block diagram illustrating the configuration
`of the Overall network for executing the location information
`notifying method according to a Second embodiment of the
`present invention.
`FIG. 11 is a format diagram illustrating an example of an
`area ID conversion table according to this embodiment.
`FIG. 12 is a format diagram illustrating an example of a
`Sector ID conversion table according to this embodiment.
`FIG. 13 is a format diagram illustrating an example of a
`location information precision table according to this
`embodiment.
`FIG. 14 is a flowchart illustrating the operation of the
`location information providing unit of a gateway Server
`according to this embodiment.
`FIG. 15 is a block diagram illustrating the configuration
`of the overall mobile communication system for executing
`the location information notifying method according to a
`third embodiment of the present invention.
`FIG. 16 is a format diagram illustrating an example of
`HTML-format Sub-menu data which the IP server transmits
`to a mobile Station, according to this embodiment.
`FIG. 17 is a diagram of a screen displayed at the mobile
`station based on the HTML-format Sub-menu data shown in
`FIG. 11, according to this embodiment.
`FIG. 18 is a block diagram illustrating the configuration
`of a gateway Server according to this embodiment.
`FIG. 19 is a format diagram illustrating an example of the
`Storage contents of an IP information database provided in
`the gateway Server according to this embodiment.
`FIG. 20 is a format diagram illustrating an example of the
`Storage contents of a region code table provided in the
`gateway Server according to this embodiment.
`FIG. 21 is a format diagram illustrating an example of the
`Storage contents of a positional relation information data
`base provided in the IP server according to this embodiment.
`FIGS. 22A and 22B constitute a flowchart illustrating the
`flow of operations in a mobile communication System in a
`first Specific example of this embodiment.
`FIG. 23 is a format diagram illustrating an example of the
`Storage contents of an in-Zone information table provided in
`an exchange Station according to this embodiment.
`FIG. 24 is a format diagram illustrating an example of the
`Storage contents of a position registration database within a
`home memory according to this embodiment.
`FIG.25 is a format diagram illustrating an example of the
`Storage contents of an ID database provided in the gateway
`Server according to this embodiment.
`FIGS. 26A and 26B constitute a flowchart illustrating the
`flow of operation of the mobile communication System
`according to a Second Specific example according to this
`embodiment.
`
`4
`FIG. 27 is a flowchart illustrating the flow of operation of
`the mobile communication System according to the Second
`Specific example according to this embodiment.
`FIG. 28 is a format diagram illustrating an example of the
`Storage contents of the database provided in the gateway
`Server according to this embodiment.
`FIG.29 is a format diagram illustrating an example of the
`Storage contents of a database provided in the gateway
`Server according to this embodiment.
`
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`BEST MODE FOR CARRYING OUT THE
`INVENTION
`
`Embodiments of the present invention will be described
`with reference to the drawings.
`In the following, a description will be given for the
`following three embodiments.
`First embodiment: An embodiment wherein a mobile
`communication terminal can notify of location infor
`mation to a computer, even in the event that the
`representational format of location information differs
`between the mobile communication terminal and the
`computer,
`Second embodiment: An embodiment wherein a mobile
`communication terminal notifies to a computer of loca
`tion information at a precision desired by the computer;
`and
`Third embodiment: An embodiment wherein a mobile
`communication terminal notifies to various Servers of
`location information as a Standard interface protocol,
`while maintaining Security of the location information
`of the mobile communication terminal.
`Note, however, that these first through third embodiments
`are no more than examples, and that the present invention
`can take on various embodiments within the Scope of the
`technical concept thereof.
`
`A: First Embodiment
`
`With the first embodiment of the present invention, an
`embodiment will be described wherein a mobile communi
`cation terminal can notify location information to a com
`puter, even in the event that the representational format of
`the location information differs between the mobile com
`munication terminal and the computer.
`A-1: Configuration of the First Embodiment
`First, the configuration of the first embodiment will be
`described.
`(1) Overall Configuration of the Network
`FIG. 1 is a block diagram illustrating the Overall configu
`ration of a network relating to the embodiment. In this
`figure, reference numeral 10 denotes a simplified cellular
`telephone (mobile communication terminal) served by a
`simplified cellular telephone network 12 (mobile commu
`nication network) called a PHS (Personal Handy-phone
`System). The simplified cellular telephone 10 can receive
`PHS telephone communication services by performing
`wireleSS communication with a base Station 11 of the Sim
`plified cellular telephone network 12.
`Reference numeral 20 denotes a cellular telephone (mo
`bile communication terminal) served by a cellular telephone
`network 22 (mobile communication network) such as a PDC
`(Personal Digital Cellular) network. The cellular telephone
`20 can receive cellular telephone services such as the PDC
`Service by performing wireleSS communication with a base
`station 21 of the cellular telephone network 22. The above
`
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`Page 28 of 52
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`US 7,010,306 B1
`
`15
`
`S
`simplified cellular telephone network 12 and cellular tele
`phone network 22 are connected by a gateway device not
`shown here, So that call connections can be made between
`them.
`Reference numeral 30 denotes a cellular telephone (mo
`bile communication terminal) served by a mobile packet
`communication network 32 (mobile communication net
`work). The cellular telephone 30 can receive packet com
`munication Services by performing wireleSS communication
`with a base Station 31 of the mobile packet communication
`network 32. The cellular telephone 30 is provided with a
`GPS receiver 34, and is capable of performing measure
`ments to obtain location information representing latitude
`and longitude. In the following description, in cases where
`the above simplified cellular telephone 10, cellular tele
`phone 20, and cellular telephone 30 are to be collectively
`referred to, these will be referred to as cellular telephones
`10, 20, and 30.
`Reference numeral 40 denotes a gateway Server, which
`relayS data communications between the mobile packet
`communication network 32 and the Internet 70 or other
`external networks. This gateway server 40 is provided with
`a data relay unit 4.0a for handling the above data commu
`nication relaying and a location information providing unit
`25
`40b (first location information notifying unit) for notifying
`location information of the above-described cellular tele
`phones 10, 20, and 30 to computers such as IP (Information
`Provider) servers 80A, 80B, etc., connected to the Internet
`70. This location information providing unit 40b is provided
`with a latitude and longitude receiver list table which is
`described herein below.
`Reference numeral 50 denotes a poS tion measurement
`center (first location information generating unit), which
`obtains and Stores location information for the cellular
`telephones 10, 20, and 30. For example, the simplified
`cellular telephone network 12 is arranged So as to be able to
`determine wireless Zone of the base station 11 in which each
`simplified cellular telephone 10 currently exists. The posi
`tion measurement-center 50 obtains the determination
`results from the simplified cellular telephone network 12,
`correlates the identification information of each Simplified
`cellular telephone 10 and the identification information of
`the base station 11 (i.e., base station ID) by which the
`cellular telephone is Served, and Stores the correlated infor
`mation in a base station ID table 50a.
`The cellular telephone network 22 is arranged So as to be
`able to determine Service area in which each cellular tele
`phone 20 currently exists. A Service area is a region which
`includes a predetermined number of wireless Zones of the
`base station 21. The position measurement center 50 obtains
`the determination results from the cellular telephone net
`work 22, correlates the identification information of each
`cellular telephone 20 and the identification information of
`the Service area (i.e., area ID) in which the cellular telephone
`is currently located and Stores the correlated information in
`an area ID table 50b.
`The mobile packet communication network32 is arranged
`So as to be able to determine Sector of the wireless Zones of
`the base station 31 in which each cellular telephone 30
`currently exists. The wireless-Zone of the base station 31 is
`divided into partial regions by the directional antennas of the
`base Station and each partial region is called as a Sector. The
`position measurement center 50 obtains the determination
`results from the mobile packet: communication network 32,
`correlates the identification information of each cellular
`telephone 30 and the identification information of the sector
`
`35
`
`6
`(i.e., Sector ID) in which the cellular telephone exists, and
`stores the correlated information in a sector ID table 50c.
`Further, the position measurement center 50 is provided
`with a GPS correction unit 50d for performing correction
`processing on the measurement values of the cellular tele
`phone 30 by the D (differential)-GPS method. The GPS
`correction unit 50d obtains GPS measurement values of the
`cellular telephone 30 via the mobile packet communication
`network 32, and corrects the obtained GPS measurement
`values based on the GPS measurement margin of error held
`within itself. The latitude and longitude information as a
`result of the correction is Stored in a latitude and longitude
`table (not shown) within the GPS correction unit 50d, in
`Such a manner So as to be correlated with the identification
`information of the cellular telephones 30.
`AS described above, according to the present embodi
`ment, the location information of the cellular telephones 10,
`20, and 30 is obtained from the networks 12, 22, and 32, in
`representational formats which are all different from each
`other.
`Reference numeral 60 denotes a location information
`converting device (first location information representation
`converting unit) which performs conversion of the location
`information. This location information converting device 60
`converts the location information of the cellular telephones
`10, 20, and 30 obtained from the networks 12, 22, and 32
`with differing representational formats into location infor
`mation with a representational format which can be handled
`by the computers such as the IP servers 80A, 80B, etc.,
`connected to the Internet 70, based on a location information
`conversion table described herein below. Due to this location
`information converting device 60, the computers requesting
`location information can receive Supply of location infor
`mation of the cellular telephones 10, 20, and 30, without
`taking the difference in representational format into consid
`eration.
`The IP servers 80A and 80B which have obtained location
`information provide position-related information relating to
`the location information to the cellular telephones 10, 20,
`and 30.
`(2) Configuration of the Cellular Telephones
`Next, the configuration of the cellular telephones 10, 20,
`and 30, will be described.
`FIG.