$\require{mediawiki-texvc}$
  • 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색도움말
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

통합검색

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

Method and system for determining position of a cellular mobile terminal

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H04Q-007/20   
미국특허분류(USC) 455/456 ; 342/457
출원번호 US-0935421 (1997-09-23)
발명자 / 주소
  • Cedervall Mats,SEX
  • Lundqvist Patrik,SEX
출원인 / 주소
  • Telefonaktiebolaget L M Ericsson (publ), SEX
대리인 / 주소
    Jenkens & Gilchrist, P.C.
인용정보 피인용 횟수 : 143  인용 특허 : 4
초록

A method and system are disclosed by which a round-trip calculation is used to determine the distance between a mobile radio station (MS) and a radio base station (BS) using the apparent uplink and downlink signal propagation air-times (e.g., T-up and T-down). As such, no absolute time reference is required. The MS and BS report to a service node in the mobile network the local departure and arrival times of the uplink and downlink signals, and calculate the apparent air-times, T-up and T-down. The distance, D, between the MS and BS can be calculated as ...

대표
청구항

[ What is claimed is:] [1.] A method for determining the round-trip air-time between a mobile radio station and a first radio base station, comprising the steps of:said mobile radio station and said first radio base station each determining a local time of transmission of an uplink signal and a downlink signal respectively;said mobile radio station and said first radio base station each determining a local time of reception of said downlink signal and said uplink signal respectively;calculating an apparent uplink air-time from said local time of transmis...

이 특허를 인용한 특허 (143)

  1. Carlsson, Hans; Koorapaty, Havish; Bloebaum, Leland Scott, Accurate GPS time estimate based on information from a wireless communications system.
  2. Leeper,David G.; England,David G.; Hoffman,Jeffrey D., Apparatus and associated methods for precision ranging measurements in a wireless communication environment.
  3. Lu, Chun Chian, Apparatus and method of synchronization using delay measurements.
  4. Kalhan, Amit, Apparatus, system and method for determining a geographical location of a portable communication device.
  5. Kalhan, Amit, Apparatus, system and method for initiating WLAN service using beacon signals.
  6. Kalhan, Amit, Apparatus, system and method for managing wireless local area network service based on a location of a multi-mode portable communication device.
  7. Kalhan, Amit, Apparatus, system and method for managing wireless local area network service to a multi-mode portable communication device.
  8. Kalhan, Amit, Apparatus, system and method for managing wireless service to a wireless communication device.
  9. Millard, Thomas A.; Sannipoli, Charles J.; Strole, Norman C., Application for automatic tracking of mobile devices for computer network processor systems.
  10. Neyman, Igor; Barskyy, Myhailo; Miloslavsky, Alec; Bondarenko, Oleg; Issayev, Valeriy; Petrov, Andrei; Karpenko, Pavel, Call and data correspondence in a call-in center employing virtual restructuring for computer telephony integrated functionality.
  11. Ferchland, Tilo; Schmidt, Michael; Sachse, Eric, Circuit of a node and method for transit time measurement in a radio network.
  12. Ferchland, Tilo; Schmidt, Michael; Sachse, Eric, Circuit of a node and method for transit time measurement in a radio network.
  13. Sinsuan, Kenneth C.; Myers, Theodore J.; Cohen, Lewis N.; Hughes, Matthew; Werner, Daniel Thomas; Boesel, Robert W.; Singler, Patrick M., Combined unique gold code transmissions.
  14. Willars, Per, Control of compressed mode transmission in WCDMA.
  15. Myers, Theodore J., Controlling power in a spread spectrum system.
  16. Petrus, Paul, Criteria for base station selection, including handover, in a wireless communication system.
  17. Stephens,Scott Adam, Decoherence plate for use in a communications system.
  18. Myers, Theodore J., Despreading spread spectrum data.
  19. Kalhan, Amit, Detection of a multi-mode portable communication device at a mesh network.
  20. Sinsuan, Kenneth C.; Myers, Theodore J.; Cohen, Lewis N.; Hughes, Matthew; Werner, Daniel Thomas; Boesel, Robert W.; Singler, Patrick M., Downlink communication.
  21. Sinsuan, Kenneth C.; Myers, Theodore J.; Cohen, Lewis N.; Hughes, Matthew; Werner, Daniel Thomas; Boesel, Robert W.; Singler, Patrick M., Downlink communication.
  22. Sinsuan, Kenneth C.; Myers, Theodore J.; Cohen, Lewis N.; Hughes, Matthew; Werner, Daniel Thomas; Boesel, Robert W.; Singler, Patrick M., Downlink communication with multiple acknowledgements.
  23. Myers, Theodore J., Dynamic energy control.
  24. Sinsuan, Kenneth C.; Myers, Theodore J.; Cohen, Lewis N.; Werner, Daniel Thomas; Hughes, Matthew; Boesel, Robert W.; Singler, Patrick M., Electric monitoring system using a random phase multiple access system.
  25. Myers, Theodore J.; Werner, Daniel Thomas, Error detection system.
  26. Sinsuan, Kenneth C.; Myers, Theodore J.; Cohen, Lewis N.; Werner, Daniel Thomas; Hughes, Matthew; Boesel, Robert W.; Singler, Patrick M., Fault circuit indicator system using a random phase multiple access system.
  27. Myers, Theodore J.; Hughes, Matthew; Boesel, Robert W., Forward error correction media access control system.
  28. Myers, Theodore J.; Werner, Daniel Thomas; Sinsuan, Kenneth C., Forward error correction media access control system.
  29. Sinsuan, Kenneth C.; Myers, Theodore J.; Cohen, Lewis N.; Werner, Daniel Thomas; Hughes, Matthew; Boesel, Robert W.; Singler, Patrick M., Gas monitoring system using a random phase multiple access system.
  30. Myers, Theodore J.; Boesel, Robert W.; Hughes, Matthew, Handover processing in multiple access point deployment system.
  31. Myers, Theodore J.; Sinsuan, Kenneth C.; Werner, Daniel Thomas, Handover processing in multiple access point deployment system.
  32. Miloslavsky, Alec, Implementation of call-center outbound dialing capability at a telephony network level.
  33. Perlmutter, S. Michael, In-band signaling for routing.
  34. Perlmutter, S. Michael, In-band signaling for routing.
  35. Myers, Theodore J.; Werner, Daniel Thomas; Sinsuan, Kenneth C.; Wilson, Jason Ronald; Reuland, Shawn Louis; Singler, Patrick M.; Huovila, Michael Jason, Light monitoring system using a random phase multiple access system.
  36. Sinsuan, Kenneth C.; Myers, Theodore J.; Cohen, Lewis N.; Werner, Daniel Thomas; Hughes, Matthew; Boesel, Robert W.; Singler, Patrick M., Light monitoring system with antenna diversity.
  37. Park, Jong-Jun; Lee, Jong-Oh; Kim, Sun-Joong; Pyo, Cheol-Sig; Chae, Jong-Suk, Localization apparatus for recognizing location of node in sensor network and method thereof.
  38. Brian J. Bogdan ; Michael J. Golden ; Alex Matusevich ; Jonathan M. Tobias ; Chris C. Tsamutalis, Locating a mobile unit in a wireless time division multiple access system.
  39. Kalhan, Amit, Management of WLAN and WWAN communication services to a multi-mode wireless communication device.
  40. Kalhan, Amit, Management of WLAN and WWAN communication services to a multi-mode wireless communication device.
  41. Makagon, Petr; Ryabchun, Andriy; Anisimov, Nikolay, Method and apparatus enabling voice-based management of state and interaction of a remote knowledge worker in a contact center environment.
  42. Hanhan, Musa, Method and apparatus for data-linking a mobile knowledge worker to home communication-center infrastructure.
  43. Hanhan, Musa, Method and apparatus for data-linking a mobile knowledge worker to home communication-center infrastructure.
  44. Ozturk,Osman; Terpstra,Rinke, Method and apparatus for determining a location of a mobile radio.
  45. Deryugin, Vladimir N.; Giacomini, Patrick; Makagon, Petr; Ryabchun, Andriy; Anisimov, Nikolay, Method and apparatus for extended management of state and interaction of a remote knowledge worker from a contact center.
  46. Deryugin, Vladimir N.; Giacomini, Patrick; Makagon, Petr; Ryabchun, Andriy; Anisimov, Nikolay, Method and apparatus for extended management of state and interaction of a remote knowledge worker from a contact center.
  47. Deryugin, Vladimir Neil; Giacomini, Patrick; Makagon, Petr; Ryabchun, Andriy; Anisimov, Nikolay, Method and apparatus for extended management of state and interaction of a remote knowledge worker from a contact center.
  48. Deryugin, Vladimir Neil; Giacomini, Patrick; Makagon, Petr; Ryabchun, Andriy; Anisimov, Nikolay, Method and apparatus for extended management of state and interaction of a remote knowledge worker from a contact center.
  49. Deryugin, Vladimir; Giacomini, Patrick; Makagon, Petr; Ryabchun, Andriy; Anisimov, Nikolay, Method and apparatus for extended management of state and interaction of a remote knowledge worker from a contact center.
  50. Grilli, Francesco; Willenegger, Serge, Method and apparatus for measuring timing of signals received from multiple base stations in a CDMA communication system.
  51. Grilli,Francesco; Willenegger,Serge, Method and apparatus for measuring timing of signals received from multiple base stations in a CDMA communication system.
  52. Lockhart, Stanford Wayne, Method and apparatus for providing enhanced communication capability for mobile devices on a virtual private network.
  53. Lockhart,Stanford Wayne, Method and apparatus for providing enhanced communication capability for mobile devices on a virtual private network (VPN).
  54. Terasawa, Daisuke; Grilli, Francesco; Willenegger, Serge, Method and apparatus in a CDMA communication system.
  55. Terasawa, Daisuke; Grilli, Francesco; Willenegger, Serge, Method and apparatus in a CDMA communication system.
  56. Terasawa,Daisuke; Grilli,Francesco; Willenegger,Serge, Method and apparatus in a CDMA communication system.
  57. Terasawa,Daisuke; Grilli,Francesco; Willenegger,Serge D, Method and apparatus in a CDMA communication system.
  58. Millard,Thomas A.; Sannipoli,Charles J.; Strole,Norman C., Method and application for automatic tracking of mobile devices for computer network processor systems.
  59. Levin, Moshe; Freedman, Avraham, Method and system for construction of radio environment model.
  60. Dent Paul Wilkerson ; Koorapaty Havish, Method and system for determining position of a mobile transmitter.
  61. Rekow,Andrew Karl Wilhelm; Stephens,Scott Adam, Method and system for determining relative position of mobile vehicles.
  62. Hunt,Kenneth Edward; Schmidt,Mark Alvin; Holm,David Roy; Zeitzew,Michael Alan; Stephens,Scott Adam, Method and system for determining the location of a vehicle.
  63. Rofheart, Martin; McCorkle, John W., Method and system for enabling device functions based on distance information.
  64. Rofheart,Martin; McCorkle,John W., Method and system for enabling device functions based on distance information.
  65. Levin, Moshe; Freedman, Avraham, Method and system for estimation of mobile station velocity in a cellular system based on geographical data.
  66. Schmidt, Mark Alvin; Hunt, Kenneth Edward; Holm, David Roy; Stephens, Scott Adam, Method and system for following a lead vehicle.
  67. Levin, Moshe; Freedman, Avraham; Weinberg, Adam; Veisberg, Meir; Nurick, Ori, Method and system for mobile station location.
  68. Levin, Moshe; Freedman, Avraham; Weinberg, Adam; Veisberg, Meir; Nurick, Ori, Method and system for mobile station location.
  69. McCorkle, John W., Method and system for performing distance measuring and direction finding using ultrawide bandwidth transmissions.
  70. McCorkle, John W., Method and system for performing distance measuring and direction finding using ultrawide bandwidth transmissions.
  71. Dobson, W. Kurt, Method and system for time difference of arrival (TDOA) location services.
  72. Dobson,W. Kurt, Method and system for time difference of arrival (TDOA) location services.
  73. Sinsuan, Kenneth C.; Myers, Theodore J.; Cohen, Lewis N.; Hughes, Matthew; Werner, Daniel Thomas; Boesel, Robert W.; Singler, Patrick M., Method and system for uplink communication.
  74. Martikkala, Risto, Method for calculating absolute time difference in radio system, and radio system.
  75. Hunt,Kenneth Edward; Schmidt,Mark Alvin; Holm,David Roy; Stephens,Scott Adam, Method for configuring a local positioning system.
  76. Anisimov, Nikolay; Makagon, Petr; Ristock, Herbert Willi Artur; Anderson, David; Leonard, Colin Michael; Zhang, Yi; Teryoshin, Vitaliy, Method for implementing and executing communication center routing strategies represented in extensible markup language.
  77. Kim, Sang-Seong, Method for locating mobile station based on power-related message of base transceiver station.
  78. Katsuhiko Tsunehara JP; Nobukazu Doi JP; Mikio Kuwahara JP; Tomoaki Ishifuji JP, Method for measuring distance and position using spectrum signal, and an equipment using the method.
  79. Tsunehara, Katsuhiko; Doi, Nobukazu; Kuwahara, Mikio; Ishifuji, Tomoaki, Method for measuring distance and position using spread spectrum signal, and an equipment using the method.
  80. Tsunehara, Katsuhiko; Doi, Nobukazu; Kuwahara, Mikio; Ishifuji, Tomoaki, Method for measuring distance and position using spread spectrum signal, and an equipment using the method.
  81. Tsunehara, Katsuhiko; Doi, Nobukazu; Kuwahara, Mikio; Ishifuji, Tomoaki, Method for measuring distance and position using spread spectrum signal, and an equipment using the method.
  82. Tsunehara, Katsuhiko; Doi, Nobukazu; Kuwahara, Mikio; Ishifuji, Tomoaki, Method for measuring distance and position using spread spectrum signal, and an equipment using the method.
  83. Tsunehara, Katsuhiko; Doi, Nobukazu; Kuwahara, Mikio; Ishifuji, Tomoaki, Method for measuring distance and position using spread spectrum signal, and an equipment using the method.
  84. Saleh Bilal A. ; Flynn Paul V., Method for positioning gsm mobile station.
  85. Beck, Christopher Clemmett Macleod; Berke, Jonathan Michael; Johnstone, Joel A.; Mitchell, Robin Marie; Powers, James Karl; Sidell, Mark Franklin; Knuff, Charles Dazler, Method for routing transactions between internal and external partners in a communication center.
  86. Beck, Christopher Clemmett Macleod; Berke, Jonathan Michael; Johnstone, Joel A; Mitchell, Robin Marie; Powers, James Karl; Sidell, Mark Franklin; Knuff, Charles Dazler, Method for routing transactions between internal and external partners in a communication center.
  87. Monot, Jean-Jacques; Ferreol, Anne; Bernardot, Laurent, Method for the localizing of terrestrial mobile radio from an aircraft.
  88. Patchell, John W., Method of distinguishing, from a moving platform, stationary objects from moving objects.
  89. Katz, Marcos, Method of improving radio connection quality.
  90. Keranen, Yrjo; Viero, Timo, Method to calculate true round trip propagation delay and user equipment location in WCDMA/UTRAN.
  91. Pite Eric,FRX, Method to localize a mobile telephone.
  92. Agrawala,Ashok Kumar; Larsen,Ronald L; Shankar,A. Udaya; Szajda,Douglas C, Method, system and computer program product for positioning and synchronizing wireless communications nodes.
  93. Mueck, Markus; Hans, Martin; Bienas, Maik; Schmidt, Andreas, Methods and apparatus for resolving wireless signal components.
  94. Mueck, Markus; Hans, Martin; Bienas, Maik; Schmidt, Andreas, Methods and apparatus for resolving wireless signal components.
  95. Uebayashi Shinji,JPX ; Ohno Kouji,JPX ; Onoe Seizo,JPX, Mobile station position estimation scheme for cellular mobile communication system.
  96. Ker채nen,Yrj철; Viero,Timo, Network-based method and system for determining a location of user equipment in CDMA networks.
  97. Neyman, Igor; Barskyy, Myhailo; Miloslavsky, Alec; Bondarenko, Oleg; Issayev, Valeriy; Petrov, Andrei; Karpenko, Pavel; Smelik, Alex; Volguin, Alexander; Ostapchuk, Yuri; Livshits, Boris; Dadgar, Hamid, Personal desktop router.
  98. Chang, Henry; Dunn, Doug, Pilot signal transmission management.
  99. Stephens,Scott Adam, Polarization sensitive synthetic aperture radar system and method for local positioning.
  100. Tamukai,Kiyoshi, Portable telephone set and communication base station switching system.
  101. Tamukai, Kiyoshi, Portable telephone set and communicative base station switching system.
  102. Watanabe, Koji; Ogino, Atsushi, Position calculating method, signal receiver, and position calculating apparatus therefor.
  103. F채rber,Michael; Hofmann,J체rgen; Sotek,Karel, Positional determination of a user in a mobile communications system with emission diversity.
  104. Stephens,Scott Adam, Positioning system with a sparse antenna array.
  105. Stephens,Scott Adam, Positioning system with co-polarized and cross-polarized mapping.
  106. Stephens,Scott Adam, Positioning system with intentional multi-path signal.
  107. Myers, Theodore J.; Werner, Daniel Thomas; Sinsuan, Kenneth C., Power detection in a spread spectrum system.
  108. Myers, Theodore J.; Boesel, Robert W., RSSI measurement mechanism in the presence of pulsed jammers.
  109. Myers, Theodore J., Random phase multiple access communication interface system and method.
  110. Myers, Theodore J., Random phase multiple access system with location tracking.
  111. Myers, Theodore J., Random phase multiple access system with meshing.
  112. Islam, Tariqul; Carlson, John, Ranging in UMTS networks.
  113. Myers, Theodore J.; Werner, Daniel Thomas, Signal quality measurement system.
  114. Myers, Theodore J.; Cohen, Lewis N.; Werner, Daniel Thomas; Hughes, Matthew; Boesel, Robert W., Slotted mode acquisition.
  115. Grubeck Hans George,SEX ; Bengkvist Bengt,SEX, Smart subdivision of base station candidates for position location accuracy.
  116. Sinsuan, Kenneth C.; Myers, Theodore J.; Cohen, Lewis N.; Werner, Daniel Thomas; Hughes, Matthew; Boesel, Robert W.; Singler, Patrick M., Smart transformer using a random phase multiple access system.
  117. Myers, Theodore J.; Werner, Daniel Thomas, Spread spectrum with doppler optimization.
  118. Zumsteg, Philip J., Sub-frame synchronized multiplexing.
  119. Zumsteg, Philip J., Sub-frame synchronized ranging.
  120. Zumsteg, Philip J., Sub-frame synchronized residual radar.
  121. Zumsteg, Philip J., Sub-frame synchronized residual ranging.
  122. Myers, Theodore J.; Boesel, Robert W.; Hughes, Matthew, Synchronized system configuration.
  123. Stephens,Scott Adam, Synthetic aperture radar system and method for local positioning.
  124. Tahir Hussain ; Christopher Kingdon ; Bagher Zadeh ; Bikash Saha, System and method for configuring generic equipment measurement units with a mobile services switching center.
  125. Schmidt, Mark Alvin; Hunt, Kenneth Edward; Holm, David Roy; Stephens, Scott Adam, System and method for determining a position of a vehicle.
  126. Schmidt, Mark Alvin; Hunt, Kenneth Edward; Holm, David Roy; Stephens, Scott Adam, System and method for determining a position of a vehicle.
  127. Schmidt, Mark Alvin; Hunt, Kenneth Edward; Holm, David Roy; Stephens, Scott Adam, System and method for determining a position of a vehicle with compensation for noise or measurement error.
  128. Kransmo,Jan Lennart; Kingdon,Christopher Hugh; Bloebaum,Leland Scott, System and method for fast cold start of a GPS receiver in a telecommunications environment.
  129. Havinis Theodore ; Roel-Ng Maya, System and method for monitoring and barring location applications.
  130. Alles, Martin; Al-Mufti, Khalid; Kalenahalli, Ananth; Gravely, Thomas B., System and method for multiple range estimation location.
  131. Alles, Martin; Al-Mufti, Khalid; Kalenahalli, Ananth; Gravely, Thomas B., System and method for multiple range estimation location.
  132. Islam, Tariqul; Carlson, John; Al-Mufti, Khalid; Hannan, Ariful, System and method of UMTS UE location using uplink dedicated physical control channel and downlink synchronization channel.
  133. Anisimov, Nikolay; Sayko, Vyacheslav; Teryoshin, Vitaliy, System and methods for improving interaction routing performance.
  134. Anisimov, Nikolay; Sayko, Vyacheslav; Teryoshin, Vitaliy, System and methods for improving interaction routing performance.
  135. Myers, Theodore J., Tag communications with access point.
  136. Bender, Paul; Jalali, Ahmad; Judson, Bruce; Padovani, Roberto; Wheatley, III, Charles E., Time multiplexed transmission scheme for a spread spectrum communication system.
  137. Rentz,Mark Lindsay; Stephens,Scott Adam; Kaplan,Mark Phillip; Woo, deceased,Richard Kai Tuen, Two-way RF ranging system and method for local positioning.
  138. Myers, Theodore J., Uplink transmitter in a random phase multiple access communication system.
  139. Myers, Theodore J.; Boesel, Robert W., User data broadcast mechanism.
  140. Karp Edward W. ; Bianchini Kevin J. ; Fine David R. ; Fine Jonathan M. ; Walker Cedric F., Visit verification.
  141. Sinsuan, Kenneth C.; Myers, Theodore J.; Cohen, Lewis N.; Werner, Daniel Thomas; Hughes, Matthew; Boesel, Robert W.; Singler, Patrick M., Water monitoring system using a random phase multiple access system.
  142. Garin, Lionel Jacques, Wireless device capable of producing an emergency beacon.
  143. Yoshida Satoshi,FRX ; Feyfant Patrick,FRX ; Martin Varenka,FRX ; Winckel Laurent,FRX ; Gaglione Philippe,FRX ; Weigelt Oliver,FRX ; Archambaud Denis,FRX, Wireless local loop automatic delay setting.