Wireless Communication Methods, Systems, and Signal Structures
First Claim
Patent Images
1. A method of transmitting from a plurality of antennas comprising:
- dividing an available OFDM bandwidth of each antenna into sub-channels;
defining a plurality of regions, each region being defined by a respective set of sub-channels and a defined number of OFDM symbols to be transmitted;
defining a respective antenna mapping for each region and selecting one or more of the plurality of antennas to use for the region, the antenna mappings including at least one MIMO mapping;
mapping content for at least one user to each of the regions using the respective antenna mapping;
transmitting each region on the one or more antennas selected for the region.
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Abstract
Systems and methods for performing OFDM MIMO communications are provided. These include a frame structure; methods of combining various types of MIMO such as STTD and SM; sub-channel definitions; sub-FFT channel constructions; fast control channels; additional modulations; and group antenna transmit diversity; new incremental redundancy schemes.
134 Citations
61 Claims
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1. A method of transmitting from a plurality of antennas comprising:
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dividing an available OFDM bandwidth of each antenna into sub-channels;
defining a plurality of regions, each region being defined by a respective set of sub-channels and a defined number of OFDM symbols to be transmitted;
defining a respective antenna mapping for each region and selecting one or more of the plurality of antennas to use for the region, the antenna mappings including at least one MIMO mapping;
mapping content for at least one user to each of the regions using the respective antenna mapping;
transmitting each region on the one or more antennas selected for the region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification