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AssigneeFreescale Semiconductor, Inc.
InventorJames McCoy
Estimating the term…
In a collaborative, multiple input, multiple output wireless communication system, a transmitting device transmits a peak-limited pilot signal to a receiving device. The receiving device independently synthesizes the same pilot signal transmitted by the transmitting device. The synthesis process involves precoding the pilot signal and peak limiting the precoded pilot signal. The receiving device receives a signal r that represents the product of (i) a channel matrix H between the transmitting device and the receiving device and (ii) the peak-limited pilot signal yp(n)′ plus noise η, i.e. r=Hyp(n)′+η. The synthesized, peak-limited pilot signal can then be used by a channel estimator to determine an estimated channel matrix Ĥ. Thus, the estimated channel matrix Ĥ represents a closer estimate of the channel matrix H than conventional channel estimation processes and, thus, can provide better corresponding performance than conventional MIMO wireless communication systems.
A wireless communication method for a multiple input, multiple output (MIMO) system that includes MIMO channel estimation using peak-limited pilot signals, the method comprising:
A signal processing system comprising:
A multiple input, multiple output (MIMO) communication system for communicating between at least one first device and at least one second device using an estimated MIMO channel determined using a peak-limited first device pilot signal and a corresponding peak-limited second device pilot signal, the communication system comprising:
Dependencies are inferred from the claim text.