METHOD FOR DETERMINING A CHANGE IN A COMMUNICATION SIGNAL AND USING THIS INFORMATION TO IMPROVE SPS SIGNAL RECEPTION AND PROCESSING
First Claim
1. A mobile device comprising:
- means for receiving communication signals from a stationary transmitter, the communication signals having associated communication signal envelopes;
means for processing the communication signal envelopes to determine one or more multipath-related parameters; and
means for determining motion information of the mobile device relative to the stationary transmitter using the one or more multipath-related parameters.
2 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatuses for determining a position of a mobile satellite positioning system (SPS) receiver which is coupled to a communication receiver or transceiver. In one exemplary method, a change in a communication signal received by the communication receiver is determined. A parameter, based on the change, is determined, and SPS signals from SPS satellites are processed according to the parameter. According to further details of this method, the change involves the fluctuation of the level of the communication signal and the parameter is a motion information which specifies a frequency range for searching for SPS signals in the process of acquiring the SPS signals from SPS satellites. In an alternative embodiment the change in the communication signal is a change in the transmitted signal in response to power control commands. Apparatuses, such as a mobile communication system which includes an SPS receiver and a communication receiver, are also described.
-
Citations
27 Claims
-
1. A mobile device comprising:
-
means for receiving communication signals from a stationary transmitter, the communication signals having associated communication signal envelopes; means for processing the communication signal envelopes to determine one or more multipath-related parameters; and means for determining motion information of the mobile device relative to the stationary transmitter using the one or more multipath-related parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of processing communication signals received at a mobile device comprising:
-
receiving communication signals from a stationary transmitter, the communication signals having associated signal envelopes; processing the communication signal envelopes to determine one or more multipath-related parameters; and determining motion information of the mobile device relative to the stationary transmitter using the one or more multipath-related parameters. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A mobile device comprising:
-
a communication receiver configured to receive communication signals from a stationary transmitter, the communication signals having associated signal envelopes; processor circuitry in communication with the communication receiver and configured to process the communication signal envelopes to determine one or more multipath-related parameters and further configured to determine motion information of the mobile device relative to the stationary transmitter using the one or more multipath-related parameters. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
-
Specification