Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Reexamination Certificate
2006-10-03
2006-10-03
Vuong, Quochien B. (Department: 2685)
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
C455S307000, C455S339000
Reexamination Certificate
active
07116957
ABSTRACT:
The velocity of a wireless communications device (106) is estimated. In response to this estimate, a filter bandwidth, such as a pilot filter (310) bandwidth, is adjusted so that the introduction of noise and distortion to a signal received by the device is mitigated. The filter bandwidth is adjusted by increasing it as the estimated velocity increases; and decreasing it as the estimated velocity decreases. Such adjustments may be accomplished through providing a number of predetermined bandwidths that each correspond to a particular velocity range, and setting the filter bandwidth to the predetermined bandwidth that corresponds to the estimated velocity.
REFERENCES:
patent: 5329547 (1994-07-01), Ling
patent: 6373882 (2002-04-01), Atarius et al.
patent: 6658045 (2003-12-01), Jin
Blostein, S., et al. (1995) A change-detection approach to monitoring fading channel bandwidth. Information Theory p. 155.
Li, H., et al. (1990) An adaptive filtering technique for pilot aided transmission systems. IEEE pp. 507-512.
Oh, H., et al. (2000) An Adaptive channel estimation scheme for DS-CDMA systems. VTC pp. 2839-2843.
Sakamoto, M., et al. (2000) Adaptive channel estimation with velocity estimator for W-CDMA receiver. VTC pp. 2024-2028.
Kan Andrew
Lundby Stein A.
Patel Shimman
Sih Gilbert Christopher
Brown Charles D.
QUALCOMM Incorporated
Seo Howard H.
Vuong Quochien B.
Wadsworth Phillip R.
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