Patent ID: 6266012
Filing Date: 2001-07-24
Classification: G01S

Abstract:
An apparatus for determining radio signal timing relationships in a radio communication network, comprising:an input for receiving first and second signal timing measurements of at least one radio signal transmitted in the radio communication network and for receiving clock skew information about a timing discrepancy between first and second satellite-based clock signals respectively used to make the first and second signal timing measurements;a timing relationship determiner coupled to said input for comparing the first and second signal timing measurements to obtain signal timing difference information and for using the clock skew information to compensate for an effect of said timing discrepancy in the signal timing difference information, the signal timing difference information being adjusted to account for a contribution of said timing discrepancy to the signal timing difference information; andan output for outputting the adjusted signal timing difference information to a location determiner, the location determiner operable to determine the position of a radio transmitter in the radio communication network.