METHOD AND APPARATUS FOR USE IN COOPERATIVE RELAYS USING INCREMENTAL REDUNDANCY AND DISTRIBUTED SPATIAL MULTIPLEXING
First Claim
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1. A wireless transmit/receive unit (WTRU) comprising:
- a receiver configured to receive a plurality of transmissions, each of the transmissions in a first phase and a second phase, wherein each transmission contains bits coded with different redundancy versions (RVs);
a processor configured to process the bits;
an incremental redundancy (IR) buffer configured to combine the bits; and
a decoder configured to decode the combined bits.
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Abstract
A method and apparatus are used in cooperative relays with incremental redundancy (IR) and distributed spatial multiplexing. A wireless transmit/receive unit (WTRU) may listen to the base station (BS) transmission during Phase 1 of the communication, and use cooperation between a relay station (RS) and the BS for the data transmission during Phase 2 to improve performance. During Phase 2, both the BS and the RS may transmit data to the WTRU, using either distributed Space Time Block Codes/Space Frequency Block Codes (STBC/SFBC) or distributed spatial multiplexing.
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Citations
18 Claims
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1. A wireless transmit/receive unit (WTRU) comprising:
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a receiver configured to receive a plurality of transmissions, each of the transmissions in a first phase and a second phase, wherein each transmission contains bits coded with different redundancy versions (RVs); a processor configured to process the bits; an incremental redundancy (IR) buffer configured to combine the bits; and a decoder configured to decode the combined bits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless communications method for a wireless transmit/receive unit (WTRU) comprising:
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receiving a plurality of transmissions, each of the transmissions in a first phase and a second phase, wherein each transmission contains bits coded with different redundancy versions (RVs); processing the bits; combining the bits; and decoding the combined bits. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification