Receiver for performing position location with efficient rotator
AssigneeQUALCOMM Incorporated
InventorsInyup Kang, Gilbert C. Sih, Qiuzhen Zou
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Abstract
The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment of the invention comprises a method for performing position location comprising the steps of receiving signal samples, generating a coarse acquisition sequence, rotating the coarse acquisition sequence yielding a rotated coarse acquisition sequence, and applying the rotated coarse acquisition sequence to the signal samples at a set of time offsets yielding correlated output data.
Claims8
A method for performing position location comprising the steps of:
- (a) receiving signal samples;
- (b) generating a coarse acquisition sequence;
- (c) rotating said coarse acquisition sequence yielding a rotated coarse acquisition sequence;
- (d) applying said rotated coarse acquisition sequence to said signal samples at a set of time offsets yielding correlated output data.
The method as set forth in 3 wherein said coherent integration is performed over a first duration, and said non-coherent integration is performed over a second duration.
The method as set forth in 4 wherein said first duration is approximately one ms.
Dependencies are inferred from the claim text.