Channel condition estimation for pilot coefficient selection

Details Channel condition estimation for pilot coefficient selection Channel condition estimation for pilot coefficient selection

2006-01-10

2006-01-10

Ghebretinsae, Temesghen (Department: 2637)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S324000, C370S252000

Reexamination Certificate

active

06985535

ABSTRACT:
A multi-carrier modulation communications system and method (100) for providing channel estimation that uses a transmitter for inserting pilot symbols in a digital multi-carrier modulated radio frequency (RF) signal and a receiver for receiving the pilot symbols in multi-carrier modulation RF signal. In order to provide channel estimation the receiver detects (101) channel power gains from a plurality of designated pilot symbols and calculates (103) both a speed parameter (S) and a multi-path parameter (M) for the channel receiving the pilot symbols. A channel model is then defined (105) based upon the speed parameter and multi-path parameter value and a predefined set of pilot coefficients is chosen (107) that substantially matches the channel model. The resulting set of pilot coefficients is then utilized (109) for optimizing pilot symbol interpolation.

REFERENCES:
patent: 5140615 (1992-08-01), Jasper et al.
patent: 5241544 (1993-08-01), Jasper et al.
patent: 5406585 (1995-04-01), Rohani et al.
patent: 5414734 (1995-05-01), Marchetto et al.
patent: 5848357 (1998-12-01), Dehner et al.
patent: 5875215 (1999-02-01), Dobrica
patent: 6137788 (2000-10-01), Sawahashi et al.
patent: 6141393 (2000-10-01), Thomas et al.
patent: 6192040 (2001-02-01), Jalloul et al.
patent: 6208632 (2001-03-01), Kowalski et al.
patent: 6298094 (2001-10-01), Dehner et al.
patent: 6424678 (2002-07-01), Doberstein et al.
patent: 2004/0013172 (2004-01-01), Hashiguchi et al.
James K. Cavers, “An Analysis of Pilot Symbol Assisted Modulation for Raleigh Fading Channels,” IEEE Transactions on Vehicular Technology, Nov. 1991, pp. 686-693.
Haiyun Tang, Kam Y. Lau, & Robert W. Brodersen, “Interpolation-Based Maximum Likelihood Channel Estimation Using OFDM Pilot Symbols,” Berkeley Wireless Research Ctr., undated.
Ivan Perisa, Jochem Egle & Jurgen Lindner, “Channel Estimation with Pilot-Symbols over WSSUS Channels,” Univ. of Ulm (Germany), Dept. of Information Technology, undated.

Affiliated with

Also associated with

Rating

Channel condition estimation for pilot coefficient selection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Channel condition estimation for pilot coefficient selection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Channel condition estimation for pilot coefficient selection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3600256