Abstract: A wireless communications device includes a receiver, and a decoder coupled downstream from the receiver. The decoder is configured to alternatively decode a first signal using a first trellis state transition map including first valid transitions, the first signal having a first modulation order, and second signals using second trellis state transition maps including respective second valid transitions defined from the first valid transitions. The second signals have respective modulation orders less than the first modulation order.

Abstract: A communications receiver includes an antenna, and a burst signal acquisition circuit coupled to the antenna to detect a burst signal received over a wireless communications channel. The burst signal has a burst structure that includes channel-corrupted known preamble bits, channel-corrupted known probe bits and channel-corrupted unknown data bits. A channel estimator is coupled to the burst signal acquisition circuit to generate a-priori a gain vector based on uncorrupted known probe bits, and to perform a recursive least squares (RLS) operation to determine an impulse response of the wireless communications channel based on the channel-corrupted known probe bits and the gain vector. A maximum likelihood sequence estimator (MLSE) or equalizer is coupled to the channel estimator and the burst signal acquisition circuit.

Abstract: A communications receiver includes an antenna, and a burst signal acquisition circuit coupled to the antenna to detect a burst signal received over a wireless communications channel. The burst signal has a burst structure that includes channel-corrupted known preamble bits, channel-corrupted known probe bits and channel-corrupted unknown data bits. A channel estimator is coupled to the burst signal acquisition circuit to generate a-priori a gain vector based on uncorrupted known probe bits, and to perform a recursive least squares (RLS) operation to determine an impulse response of the wireless communications channel based on the channel-corrupted known probe bits and the gain vector. A maximum likelihood sequence estimator (MLSE) or equalizer is coupled to the channel estimator and the burst signal acquisition circuit.

Abstract: A wireless communications device includes a receiver, and a decoder coupled downstream from the receiver. The decoder is configured to alternatively decode a first signal using a first trellis state transition map including first valid transitions, the first signal having a first modulation order, and second signals using second trellis state transition maps including respective second valid transitions defined from the first valid transitions. The second signals have respective modulation orders less than the first modulation order.