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US 2010/0166107 A1Published application
Systems and Methods for Transmitter Diversity
AssigneeXocyst Transfer AG L.L.C.
InventorsMark A. Webster, Deniz Rende, Jim E. Petranovich
Life of this patent
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Abstract
Methods and systems for transmitter diversity expansion are provided. The methods and systems include steps and modules for applying a number of data streams (K) to a larger number of antennas (N). This is performed by applying each of the data streams to a single base antenna, such that K data streams are applied to K base antennas, and by shifting and combining the K data streams to produce N-K data streams to apply to N-K extension antennas.
Claims28
1-20. (canceled)
A system comprising:
- a transmit processor configured to generate a set of one or more extension data streams based on a set of base data streams, wherein at least one data stream of the set of one or more extension data streams is the product of a matrix multiplication of the set of base data streams with a unitary matrix.
A system comprising:
- means for generating a set of one or more extension data streams based on a set of base data streams, wherein at least one data stream of the set of one or more extension data streams is the product of a matrix multiplication of the set of base data streams with a unitary matrix.
A method comprising:
- generating a set of one or more extension data streams based on a set of base data streams, wherein at least one data stream of the set of one or more extension data streams is the product of a matrix multiplication of the set of base data streams with a unitary matrix;
- and
- initiating the transmission of each data stream of the sets of base and extension data streams from a separate corresponding transmit antenna.
Dependencies are inferred from the claim text.