Interdigital Technology Corporation

Joseph T Morabito

Douglas R Castor

George W McClellan

An address for data bits is determined by categorizing the bits into a first, second, third and fourth case. The first case is for bits transferred in only one resource unit in a time slot; the second case is for bits transferred in a plurality of downlink resource units; the third case is for bits transferred in an uplink resource unit where a spreading factor of data in a first resource unit is greater than or equal to a spreading factor of a second resource unit; and the fourth case is for bits transferred in an uplink resource unit where a spreading factor of data in a first resource unit is less than a spreading factor of a second resource unit.

Physical layer processing for a wireless communication system using code division multiple access

The invention includes various embodiments for use in physical layer processing. One embodiment determines the address mapping of bits in the physical channel buffer from the address of bits in the first interleaver buffer. The physical channel buffer addresses are determined corresponding to addresses of the bits after rate matching, bit scrambling, second interleaving and physical channel mapping. The bits are directly read from the first interleaver buffer and written to the physical channel buffer using the determined physical channel buffer addresses. Another embodiment determines the address mapping of bits in the first interleaver buffer from the address of bits in the physical channel buffer. The first interleaver buffer addresses are determined corresponding to addresses of the bits after reverse rate matching, reverse bit scrambling, reverse second interleaving and reverse physical channel mapping. The bits are directly read from the determined first interleaver buffer addresses and written to the physical channel buffer addresses.

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Dix Hills, NY, United States of America

Joseph T Morabito