Title:
無線送信機の位置特定のためのグローバル位置特定システムの改善された使用方法
Document Type and Number:
Japanese Patent JP4424576
Kind Code:
B2
Abstract:
An apparatus is described for making radio signal timing measurements in a radio communication network, comprising: an input for receiving a radio signal transmitted in the radio communication network; an input for providing at a first location a plurality of satellite-based clock signals respectively derived from a plurality of satellite timing references; a signal timing determiner coupled to said inputs for using at least one of said satellite-based clock signals to produce a signal timing measurement of the received radio signal; a clock skew determiner coupled to said clock signal input and responsive to first and second ones of said satellite-based clock signals for providing clock skew information indicative of a timing discrepancy between the first and second satellite-based clock signals caused by a discrepancy between the respective satellite timing references from which the first and second satellite-based clock signals are derived; and an output for outputting said signal timing measurement and said clock skew information.
Inventors:
Larson, eric
Cangas, ants
Fisher, Sven
Cangas, ants
Fisher, Sven
Application Number:
JP2000574947A
Publication Date:
March 03, 2010
Filing Date:
September 24, 1999
Export Citation:
Assignee:
Telefon Akti Bora Get Elm Ericson (Pubble)
International Classes:
G01S1/02; G01S5/06; G01S19/06; G01S19/09; G01S19/14; G01S19/25; G01S19/42; H04W64/00
Domestic Patent References:
| JP8211141A | ||||
| JP10069304A | ||||
| JP63266375A |
Foreign References:
| US5600706 | ||||
| WO1999039517A2 |
Attorney, Agent or Firm:
Sonoda Yoshitaka
Kobayashi Yoshinori
Kobayashi Yoshinori