INTERFERENCE ESTIMATION FOR WIRELESS COMMUNICATION
First Claim
Patent Images
1. A method of wireless communication in a wireless network, the method comprising:
- computing a first interference estimate based on common reference signal tones;
computing a second interference estimate based on data tones; and
selecting one of the data tones interference estimate and the common reference signal tones interference estimate based on a reliability determination of the first interference estimate and the second interference estimate.
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Abstract
Interference on pilot signals and on data tones can be mismatched. Different types of interference estimates perform differently based on how the mismatch occurs. The resulting interference estimate may thus be inaccurate. Interference estimates based on pilot signals and also on data tones can both be evaluated for reliability. The more reliable of the two can then be selected. If the data tones estimate is selected, the estimate can be calculated from covariance matrices or from traffic-to-pilot ratios.
85 Citations
32 Claims
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1. A method of wireless communication in a wireless network, the method comprising:
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computing a first interference estimate based on common reference signal tones; computing a second interference estimate based on data tones; and selecting one of the data tones interference estimate and the common reference signal tones interference estimate based on a reliability determination of the first interference estimate and the second interference estimate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus for wireless communication, comprising:
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means for computing a first interference estimate based on common reference signal tones; means for computing a second interference estimate based on data tones; and means for selecting one of the data tones interference estimate and the common reference signal tones interference estimate based on a reliability determination of the first interference estimate and the second interference estimate.
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17. A computer program product for wireless communications, the computer program product comprising:
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a non-transitory computer-readable medium having program code recorded thereon, the program code comprising; program code to compute a first interference estimate based on common reference signal tones; program code to compute a second interference estimate based on data tones; and program code to select one of the data tones interference estimate and the common reference signal tones interference estimate based on a reliability determination of the first interference estimate and the second interference estimate.
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18. An apparatus for wireless communications, comprising:
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a memory; and at least one processor coupled to the memory, the at least one processor being configured; to compute a first interference estimate based on common reference signal tones; to compute a second interference estimate based on data tones; and to select one of the data tones interference estimate and the common reference signal tones interference estimate based on a reliability determination of the first interference estimate and the second interference estimate. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification