Method and system for channel estimation in a single channel (SC) single-input multiple-output (SIMO) system
View Patent ↗The method and system for channel estimation in a single channel (SC) single-input multiple-output (SIMO) system described herein may provide a fast and cost effective approach to concurrently determine propagation channel estimates in a single-transmit (1-Tx) and multiple-receive (M-Rx) antennas wireless communication system. A single weight baseband generator may comprise a set generator, a channel estimator, and an algorithm generator. The set generator may generate orthogonal function sequences that may be applied to the M receive antennas and may be utilized by the channel estimator to generate channels estimates. The orthogonal function sequences may be transferred to the channel estimator after a delay. The algorithm generator may generate phase values based on the channels estimates that may be applied to the M receive antennas to improve the system's signal-to-noise performance.
1. A method for handling wireless communication, the method comprising:
generating an orthogonal function sequence during a radio frequency phase learning mode (RF-PLM) operation portion of a transmit time interval (TTI);
modifying signals received by a plurality of receive antennas in a wireless communication system during said RF-PLM operation portion of said TTI based on said generated orthogonal function sequence;
generating a baseband combined channel estimate during said RF-PLM operation portion of said TTI based on said modified signals;
generating a plurality of channel estimates during a remaining portion of said TTI based on said generated baseband combined channel estimate and said generated orthogonal function sequence; and
generating a plurality of phase values to apply to said plurality of receive antennas during said remaining portion of said TTI based on said generated plurality of channel estimates.
2. The method according to claim 1 , comprising delaying said generated orthogonal function sequence by a delay interval when generating said plurality of channel estimates.
3. The method according to claim 2 , comprising selecting said delay interval.
4. The method according to claim 1 , comprising selecting said orthogonal function sequence from a plurality of orthogonal function sequences.
5. The method according to claim 1 , comprising selecting a time interval for said RF-PLM operation portion of said TTI.
6. The method according to claim 1 , comprising generating a plurality of counter values when generating said orthogonal function sequence.
7. The method according to claim 1 , comprising generating said baseband combined channel estimate for a plurality of cluster paths.
8. The method according to claim 1 , comprising generating said plurality of channel estimates for a plurality of cluster paths.