Abstract
An arrangement and method for channel mapping in a UTRA TDD HSDPA wireless communication system by applying interleaving functions in first ( 530) and second (540) interleaving means to a bit sequence to produce symbols for mapping to physical channels the first and second interleaving means being arranged to map symbols from respectively systematic and parity bits in a predetermined scheme e.g. mapping symbols in a forward direction when a channel has an even index number and in a reverse direction when a channel has an odd index number. The symbols may comprise bit-pairs each of a systematic bit and parity bit.
Systematic bits are preferably mapped to high reliability bit positions in TDD HSDPA achieving a performance gain of between 0.2 dB and 0.5 dB. The forwards/reverse mapping allows a degree of interleaving that improves system performance in fading channels or channels disturbed by short time period noise or interference.
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| 3G | 17/07/2014 | ISLD-201407-007 | SONY CORP | No | Family Member | ||||
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