Title:
通信システムにおける距離の推定方法
Document Type and Number:
Japanese Patent JP3585464
Kind Code:
B2
Abstract:
The present invention relates to estimation of the distance between stations that communicate in a communication system over a radio interface. In the system at least one of the stations transmits signal bursts in time slots in accordance with a timing structure and at least one station receives the signal bursts. The method comprises determination of a first timing of a signal burst received at the receiving station, the first timing being associated with the first component of the received signal burst that meets a predefined condition. A second timing of the received signal burst is also determined for use in adjustment of internal timing of the receiving station for receiving and/or transmitting further signal bursts from and/or to the transmitting station. A timing offset is also determined between the stations. The distance between the stations is estimated based on the timing offset and the first timing of the received signal burst.
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Inventors:
Routouville
Timo Lanta Reinen
Marco Alanen
Gandhi Gunnarson
Timo Lanta Reinen
Marco Alanen
Gandhi Gunnarson
Application Number:
JP2001522795A
Publication Date:
November 04, 2004
Filing Date:
August 31, 2000
Export Citation:
Assignee:
NOKIA CORPORATION
International Classes:
G01S5/02; H04W64/00; (IPC1-7): G01S5/02; H04Q7/34
Domestic Patent References:
| JP7181242A | ||||
| JP8079170A | ||||
| JP5327603A | ||||
| JP9504413A | ||||
| JP1175235A | ||||
| JP567996A |
Foreign References:
| WO1999006851A1 | ||||
| WO1999027738A1 | ||||
| WO1999015911A1 | ||||
| WO1998015150A1 |
Attorney, Agent or Firm:
Makoto Hagiwara