SYSTEM AND METHOD FOR NETWORK TIMING RECOVERY IN COMMUNICATIONS NETWORKS
First Claim
1. A method for determining the network timing of a communications network from a mobile station that receives signals from a plurality of base stations, comprising:
- (a) determining an estimated location of a mobile station;
(b) utilizing a first set of network measurements such as observed time difference (“
OTD”
) values at said mobile station between a first signal received from a first base station and a second signal received from a second base station;
(c) utilizing a second set of network measurements such as round trip time (“
RTT”
) values at said mobile station or base stations in the network; and
(d) determining a network timing value as a function of said estimated location and said OTD and RTT values.
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Accused Products
Abstract
A system and method for determining the network timing of a communications network from a mobile station that receives signals from a plurality of base stations. An estimated location of a mobile station may be determined through any number of or combination of location technologies. Network measurements such as observed time difference values and/or a round trip time values at the mobile station or base stations in the network may be utilized. Network timing relationships may be determined as a function of the estimated location and network measurements. An estimated location of a second mobile station may be determined as a function of the network timing relationships.
137 Citations
66 Claims
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1. A method for determining the network timing of a communications network from a mobile station that receives signals from a plurality of base stations, comprising:
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(a) determining an estimated location of a mobile station; (b) utilizing a first set of network measurements such as observed time difference (“
OTD”
) values at said mobile station between a first signal received from a first base station and a second signal received from a second base station;(c) utilizing a second set of network measurements such as round trip time (“
RTT”
) values at said mobile station or base stations in the network; and(d) determining a network timing value as a function of said estimated location and said OTD and RTT values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A system for determining the network timing of a communications network from a mobile station that receives signals from a plurality of base stations, comprising:
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(a) circuitry for determining an estimated location of a mobile station; (b) circuitry for utilizing a first set of network measurements such as observed time difference (“
OTD”
) values at said mobile station between a first signal received from a first base station and a second signal received from a second base station;(c) circuitry for utilizing a second set of network measurements such as round trip time (“
RTT”
) values at said mobile station or base stations in the network; and(d) circuitry for determining a network timing value as a function of said estimated location and said OTD and RTT values. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
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Specification