Trend influenced time tracking
AssigneeQUALCOMM Incorporated
InventorsBojan Vrcelj, Ashok Mantravadi, Fuyun Ling, Rajiv Vijayan, Michael Wang
Life of this patent
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Abstract
A method for determining a communication channel location is disclosed. A first subset of a plurality of channel impulse responses is averaged over a first time period to produce a first filtered channel impulse response, and a second subset of the plurality of channel impulse responses is averaged over a second time period to produce a second filtered channel impulse response. The second time period is different from the first time period, and the second subset is different from the first subset. The communication channel location is determined using the first filtered channel impulse response and the second filtered channel impulse response.
Claims39
A method for determining a communication channel location, the method comprising steps of:
- averaging a first subset of a plurality of channel impulse responses over a first time period to produce a first filtered channel impulse response;
- averaging a second subset of the plurality of channel impulse responses over a second time period to produce a second filtered channel impulse response, wherein:
- the second time period is different than the first time period, and
- the second subset is different from the first subset;
- and
- determining the communication channel location using the first filtered channel impulse response and the second filtered channel impulse response.
A receiver for determining a communication channel location, the receiver comprising:
- means for averaging a first subset of a plurality of channel impulse responses over a first time period to produce a first filtered channel impulse response;
- means for averaging a second subset of the plurality of channel impulse responses over a second time period to produce a second filtered channel impulse response, wherein:
- the second time period is different than the first time period, and
- the second subset is different from the first subset;
- and
- means for determining the communication channel location using the first filtered channel impulse response and the second filtered channel impulse response.
A communication device for determining a communication channel location, the communication device comprising:
- a processor configured to:
- average a first subset of a plurality of channel impulse responses over a first time period to produce a first filtered channel impulse response;
- average a second subset of the plurality of channel impulse responses over a second time period to produce a second filtered channel impulse response, wherein:
- the second time period is different than the first time period, and
- the second subset is different from the first subset;
- and
- determine the communication channel location using the first filtered channel impulse response and the second filtered channel impulse response;
- and
- a memory coupled with the processor.
A method for determining a communication channel location, the method comprising steps of:
- averaging a first subset of a plurality of channel impulse responses over a first time period to produce a first filtered channel impulse response;
- determining at least two of a first FAP, a first LAP or a first delay spread using the first filtered channel impulse response;
- averaging a second subset of the plurality of channel impulse responses over a second time period to produce a second filtered channel impulse response, wherein:
- the second time period is different than the first time period, and
- the second subset is different from the first subset;
- determining at least two of a second FAP, a second LAP or a second delay spread using the second filtered channel impulse response;
- and
- determining the communication channel location using the at least two of the first FAP, a first LAP or a first delay spread and the at least two of a second FAP, a second LAP or the second delay spread.
Dependencies are inferred from the claim text.