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AssigneeAT&T Intellectual Property II, L.P.
InventorsArthur Robert Calderbank, Ayman F. Naguib, Nambirajan Seshadri, Vahid Tarokh
Estimating the term…
A method and apparatus for increasing the data rate and providing antenna diversity using multiple transmit antennas utilize a set of bits of a digital signal to generate a codeword. Delay elements may be provided in antenna output channels, or, with suitable code construction, delay may be omitted. n signals represent n symbols of a codeword are transmitted with n different transmit antennas. At the receiver, the noisy received sequence is decoded. The parallel transmission and channel coding enables an increase the data rate over previous techniques, and recovery even under fading conditions. The channel coding may be concatenated with error correction codes under appropriate conditions.
A method comprising:
The method of claim 2, wherein the first sequence and the second sequence are different from one another, forming a space-time diversity mapping between the incoming bits and the first sequence and the second sequence.
A system for transmitting a digital signal using a plurality of n antennas, the system comprising:
A computer-readable storage device storing instructions which, when executed by a processor, cause the processor to perform operations comprising:
Dependencies are inferred from the claim text.