RU97101879A - METHOD AND DEVICE FOR DETERMINING LOCATION IN A RADIO COMMUNICATION SYSTEM WITH MULTI-RANGE ACCESS WITH CODE DIVISION OF CHANNELS - Google Patents

METHOD AND DEVICE FOR DETERMINING LOCATION IN A RADIO COMMUNICATION SYSTEM WITH MULTI-RANGE ACCESS WITH CODE DIVISION OF CHANNELS

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Publication number
RU97101879A
RU97101879A RU97101879/09A RU97101879A RU97101879A RU 97101879 A RU97101879 A RU 97101879A RU 97101879/09 A RU97101879/09 A RU 97101879/09A RU 97101879 A RU97101879 A RU 97101879A RU 97101879 A RU97101879 A RU 97101879A
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RU
Russia
Prior art keywords
signal
base station
location
determining
base stations
Prior art date
Application number
RU97101879/09A
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Russian (ru)
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RU2127963C1 (en
Inventor
Гош Амитава
Дуглас Рид Джон
Джозеф Розански Уолтер (младший)
Эндрю Бафорд Кевин
Original Assignee
Моторола Инк.
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Publication date
Priority claimed from US08/436,760 external-priority patent/US5508708A/en
Application filed by Моторола Инк. filed Critical Моторола Инк.
Publication of RU97101879A publication Critical patent/RU97101879A/en
Application granted granted Critical
Publication of RU2127963C1 publication Critical patent/RU2127963C1/en

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Claims (10)

1. Способ определения местонахождения абонентского устройства в системе радиосвязи, содержащий следующие операции:
посылают первый сигнал, включающий запрос местонахождения, от первой базовой станции на абонентское устройство;
принимают второй сигнал, включающий ответное сообщение от абонентского устройства, причем ответное сообщение содержит время приема первого сигнала и время передачи второго сигнала;
принимают заранее определенный символ, связанный со вторым сигналом, в данной первой базовой станции и некоторой второй базовой станции и определяют первое и второе время приема заранее определенного символа соответственно в первой и второй базовых станциях; и
определяют местонахождение абонентского устройства на основании времени приема первого сигнала абонентским устройством, времени передачи второго сигнала абонентским устройством, первого и второго времени приема заранее определенного символа и заранее определенной информации о первой и второй базовых станциях.1. A method for determining the location of a subscriber device in a radio communication system, comprising the following operations:
sending a first signal including a location request from the first base station to the subscriber unit;
receiving a second signal including a response message from the subscriber unit, the response message comprising a reception time of a first signal and a transmission time of a second signal;
receiving a predetermined symbol associated with the second signal at the first base station and some second base station, and determining a first and second reception time of the predetermined symbol at the first and second base stations, respectively; and
determine the location of the subscriber device based on the time of reception of the first signal by the subscriber device, the time of transmission of the second signal by the subscriber device, the first and second time of reception of a predetermined symbol and predetermined information about the first and second base stations. 2. Способ по п. 1, отличающийся тем, что указанная заранее определенная информация включает информацию о местонахождении и задержке при обработке. 2. The method according to p. 1, characterized in that said predetermined information includes information about the location and the delay in processing. 3. Система радиосвязи для определения местонахождения средства связи, содержащая
(а) первую базовую станцию, содержащую
(i) передатчик первой базовой станции для передачи первого сигнала с расширенным спектром, включающего запрос местонахождения, на средство связи;
(ii) приемник первой базовой станции для приема второго сигнала с расширенным спектром, включающего ответное сообщение, от средства связи, причем ответное сообщение включает время приема первого сигнала и время передачи этого сигнала, при этом приемник первой базовой станции дополнительно содержит детектор первой базовой станции для приема заранее определенного символа второго сигнала от средства связи и определения времени приема заранее определенного символа;
(b) вторую базовую станцию, содержащую второй приемник для приема заранее определенного символа второго сигнала и определения второго времени приема данного заранее определенного символа; и
(с) контроллер, связанный с первой и второй базовыми станциями, содержащий средство для определения местонахождения средства связи на основании времени приема первого сигнала, времени передачи первого сигнала, первого и второго времени приема заранее определенного символа и заранее определенной информации о первой и второй базовых станциях.3. A radio communication system for determining the location of a communication medium, comprising
(a) a first base station containing
(i) a transmitter of a first base station for transmitting a first spread spectrum signal including a location request to a communication medium;
(ii) a receiver of a first base station for receiving a second spread spectrum signal including a response message from a communication means, the response message including a reception time of a first signal and a transmission time of this signal, the receiver of a first base station further comprising a detector of a first base station for receiving a predetermined symbol of the second signal from the communication medium and determining a reception time of the predetermined symbol;
(b) a second base station comprising a second receiver for receiving a predetermined symbol of the second signal and determining a second reception time of the predetermined symbol; and
(c) a controller associated with the first and second base stations, comprising means for determining the location of the communication means based on the reception time of the first signal, the transmission time of the first signal, the first and second reception time of a predetermined symbol and predetermined information about the first and second base stations . 4. Способ определения местонахождения абонентского устройства в системе связи, содержащий следующие операции:
(а) принимают сигнал от абонентского устройства в первой базовой станции и во второй базовой станции, причем данный сигнал формируют посредством модуляции последовательностью символов расширения спектра;
(b) определяют первое время приема некоторого символа данной последовательности символов расширения спектра в первой базовой станции;
(с) определяют второе время приема данного символа во второй базовой станции; и
(d) определяют местонахождение абонентского устройства на основании первого и второго времени приема, а также заранее определенной информации с первой и второй базовых станциях.4. A method for determining the location of a subscriber device in a communication system, comprising the following operations:
(a) receiving a signal from a subscriber unit in a first base station and in a second base station, the signal being generated by modulation with a sequence of spread spectrum symbols;
(b) determining a first reception time of a symbol of a given sequence of spreading symbols in a first base station;
(c) determining a second reception time of a given symbol in a second base station; and
(d) determining the location of the subscriber unit based on the first and second reception times, as well as predetermined information from the first and second base stations. 5. Система связи, имеющая множество базовых станций и предназначенная для определения местонахождения средства связи, содержащая контроллер, связанный с первой и второй базовыми станциями, каждая из которых содержит приемник для приема сигнала от одного средства связи, формируемого посредством модуляции последовательностью символов расширения спектра, и детектор для определения времени приема некоторого символа указанной последовательности; и процессор определения местонахождения, связанный с контроллером, для запроса первой и второй базовых станций об определении первого и второго времени приема конкретного символа данной последовательности и для определения местонахождения средства связи на основании первого и второго времени приема и дополнительной информации о первой и второй базовых станциях. 5. A communication system having a plurality of base stations and designed to determine the location of a communication medium, comprising a controller associated with the first and second base stations, each of which contains a receiver for receiving a signal from one communication medium generated by modulation by a sequence of spread spectrum symbols, and a detector for determining a reception time of a symbol of a specified sequence; and a location processor associated with the controller, for requesting the first and second base stations to determine the first and second time of reception of a particular symbol of a given sequence and to determine the location of the communication medium based on the first and second reception time and additional information about the first and second base stations. 6. Способ определения местонахождения абонентского устройства, осуществляющего связь в системе радиосвязи, имеющей множество базовых станций, включающий следующие операции, осуществляемые в абонентском устройстве:
(а) принимают первый сигнал от первой базовой станции из указанного множества базовых станций и второй сигнал от второй базовой станции из указанного множества базовых станций, причем первый и второй сигналы соответственно формируют на основании первой последовательности символов и второй последовательности символов;
(b) определяют первое время приема первого символа первой последовательности и второе время приема другого символа второй последовательности, и
(c) определяют местонахождение абонентского устройства на основании первого и второго времени приема и дополнительной информации о первой и второй базовых станциях.6. A method for determining the location of a subscriber device communicating in a radio communication system having a plurality of base stations, including the following operations carried out in a subscriber device:
(a) receiving a first signal from a first base station from a specified set of base stations and a second signal from a second base station from a specified set of base stations, wherein the first and second signals are respectively generated based on the first sequence of characters and the second sequence of characters;
(b) determining a first reception time of a first symbol of a first sequence and a second reception time of another symbol of a second sequence, and
(c) determining the location of the subscriber unit based on the first and second reception time and additional information about the first and second base stations. 7. Способ по п. 6, отличающийся тем, что первая и вторая последовательности являются идентичными последовательностями символов расширения спектра, имеющими первый и второй сдвиги последовательности соответственно первого и второго заранее определенного числа символов. 7. The method according to p. 6, characterized in that the first and second sequences are identical sequences of spread spectrum symbols having first and second sequence shifts of a first and second predetermined number of characters, respectively. 8, Способ определения местонахождения абонента в системе радиосвязи, имеющей множество базовых станций, включающих активные базовые станции и неактивные узлы, включающий следующие операции:
активизируют по меньшей мере один из неактивных узлов в качестве вспомогательной базовой станции;
управляют группой, содержащей по меньшей мере одну из активных базовых станций, которая может принимать сигнал от данного абонента, в любую активизированную вспомогательную базовую станцию, для передачи каждой из них сигнала; и
определяют местоположение абонента на основании каждого из указанных сигналов.8, A method for determining the location of a subscriber in a radio communication system having a plurality of base stations, including active base stations and inactive nodes, including the following operations:
activating at least one of the inactive nodes as an auxiliary base station;
manage a group containing at least one of the active base stations, which can receive a signal from this subscriber, in any activated auxiliary base station, for transmitting each of them a signal; and
determine the location of the subscriber based on each of these signals. 9. Способ по п. 8, отличающийся тем, что дополнительно определяют время приема на абонентском устройстве каждого из указанных сигналов. 9. The method according to p. 8, characterized in that it further determines the time of reception on the subscriber device of each of these signals. 10 Устройство для определения местонахождения абонента в системе радиосвязи, имеющей множество базовых узлов, включающих активные базовые станции и неактивные узлы, содержащее средство для активизации по меньшей мере одного из неактивных узлов в качестве вспомогательной базовой станции; средство для управления группой, содержащей по меньшей мере одну из активных базовых станций, которая может принимать сигнал от данного абонента, и любую активизированную вспомогательную базовую станцию, для передачи каждой из них сигнала; и средство для определения местонахождения абонента на основании каждого из указанных сигналов. 10 A device for determining the location of a subscriber in a radio communication system having a plurality of base nodes including active base stations and inactive nodes, comprising means for activating at least one of the inactive nodes as an auxiliary base station; means for managing a group containing at least one of the active base stations that can receive a signal from a given subscriber, and any activated auxiliary base station, for transmitting each of them a signal; and means for determining the location of the subscriber based on each of these signals.
RU97101879A 1995-05-08 1996-03-21 Method and device for position finding in radio communication multiple-user code-access system RU2127963C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/436,760 1995-05-08
US08/436,760 US5508708A (en) 1995-05-08 1995-05-08 Method and apparatus for location finding in a CDMA system
PCT/US1996/003797 WO1996035958A1 (en) 1995-05-08 1996-03-21 Method and apparatus for location finding in a cdma system

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RU97101879A true RU97101879A (en) 1999-02-27
RU2127963C1 RU2127963C1 (en) 1999-03-20

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KR (1) KR100208647B1 (en)
CN (1) CN1097734C (en)
BR (1) BR9606340A (en)
CA (1) CA2192579C (en)
FI (1) FI115886B (en)
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GB (1) GB2304500B (en)
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IT (1) IT1284380B1 (en)
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