Method and apparatus for mobile data communication
AssigneeAT&T Corp.
InventorsLeonard Joseph Cimini, Jr., Nelson Ray Sollenberger
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Abstract
A high-speed wireless transmission system is employable in a macro-cellular environment. In the system multiple transmit antennas are employed. Multiple carrier tones are used to transmit the data. The carrier tones can be assigned to the respective transmit antennas in such a manner as to provide each antenna with a subset of carrier tones with each subset being spread over the transmission spectrum. In addition, operation is enhanced by providing Reed-Solomon coding of the data across consecutive time intervals.
Claims8
A method for high-speed wireless transmission of data over a transmission spectrum comprising the steps of:
- creating a stream of data;
- encoding said stream of data to create a plurality of symbols;
- assigning each of said plurality symbols to one of a plurality of carrier tones;
- providing each of said carrier tones to one of a plurality of transmission antennas, in such a way that each antenna receives a subset of said plurality of carrier tones and each subset of said plurality of carrier tones includes at least two carrier tones not adjacent to one another in the transmission spectrum and having at least one carrier tone therebetween that is provided to another one of said plurality of transmission antennas;
- and
- simultaneously transmitting the subsets of carrier tones from said plurality of transmission antennas.
Dependencies are inferred from the claim text.