METHOD AND APPARATUS FOR IDENTIFYING TRANSMITTERS IN A WIRELESS COMMUNICATION SYSTEM USING POWER PREDICTIONS
First Claim
1. A computer program product for identifying transmitters in a wireless communication system, the computer program product residing on a non-transitory processor-readable medium and comprising processor-readable instructions configured to cause a processor to:
- obtain a plurality of received signals for a plurality of transmitters, wherein the plurality of received signals are received by a user terminal; and
determine a transmitter for each received signal by causing the processor to;
determine a measured power for the received signal,determine a list of a plurality of candidate transmitters for the received signal,obtain predicted power for each candidate transmitter in the list, andidentify the transmitter for the received signal based on the predicted powers for the candidate transmitters and the measured power for the received signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Identification of transmitters for signals received by a terminal To determine the transmitter of a given received signal, a list of candidate transmitters that may have transmitted that signal is determined A coverage zone to use for the received signal is also determined This coverage zone is the area where the terminal may receive the signal being identified. The predicted power for each candidate transmitter is then determined, e.g., using a path loss prediction model and the coverage zone. The predicted powers for the candidate transmitters are compared (directly or relatively) against the measured power of the received signal. The candidate transmitter with (direct/relative) predicted power closest to the (direct/relative) measured power is deemed as the one that transmitted the signal. Propagation delays may also be predicted and used for transmitter identification. The identified transmitters may be used to determine a position estimate for the terminal
27 Citations
27 Claims
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1. A computer program product for identifying transmitters in a wireless communication system, the computer program product residing on a non-transitory processor-readable medium and comprising processor-readable instructions configured to cause a processor to:
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obtain a plurality of received signals for a plurality of transmitters, wherein the plurality of received signals are received by a user terminal; and determine a transmitter for each received signal by causing the processor to; determine a measured power for the received signal, determine a list of a plurality of candidate transmitters for the received signal, obtain predicted power for each candidate transmitter in the list, and identify the transmitter for the received signal based on the predicted powers for the candidate transmitters and the measured power for the received signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus operable to identify transmitters in a wireless communication system, the apparatus comprising:
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an interface configured to obtain a plurality of received signals for a plurality of transmitters, wherein the plurality of received signals are received by a user terminal; and a processing unit configured to; determine a plurality of lists of candidate transmitters for the plurality of received signals, one candidate list for each received signal; obtain predicted power for each candidate transmitter; determine a measured power for each of the plurality of received signals; and identify the transmitter for each received signal based on measured power for the received signal and predicted powers for the candidate transmitters in the list determined for the received signal. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification