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Application filed by Qualcomm IncfiledCriticalQualcomm Inc
Publication of TW200629827ApublicationCriticalpatent/TW200629827A/en
In one embodiment, a multi-input/multi-output system (100) includes a receiver (104), processor, coded bit scrambler (114), coded bit descrambler (130), and transmitter (102). The receiver (104) generates demodulated symbol streams corresponding to a received signal. The processor generates coded bit sequences from source bit streams when operating in a transmit mode and bit log-likelihood ratio sequences from the information bit streams when operating in a receive mode. The coded bit scrambler (114) scrambles the coded bit sequences to generate scrambled bit streams when in the transmit mode. The coded bit descrambler (130) descrambles the log-likelihood ratio sequences by a real-valued descrambling sequence when operating in the receive mode, and also removes the effect of a scrambling sequence. The transmitter (102) generates a transmit signal corresponding to the scrambled bit streams.
TW094129365A2004-08-272005-08-26Coded-bit scrambling for multi-stream communication in a mimo channel
TW200629827A
(en)