Device and method for transmitting long training sequence for wireless communications
AssigneeBroadcom Corporation
InventorsChristopher J. Hansen, Jason Alexander Trachewsky, Rajendra T. Moorti
Life of this patent
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Abstract
A device and method transmits a frame of a wireless communication. The frame includes a preamble that includes a short training sequence and a long training sequence. The long training sequence includes non-zero energy on each of a plurality of subcarriers except a DC subcarrier. A frequency domain window is inserted into the long training sequence to stimulate the subcarriers for channel estimation.
Claims23
A method for transmitting a preamble for a frame of a wireless communication, the method comprising:
- generating a first training sequence for a preamble of a frame;
- inserting a frequency domain window into said first training sequence;
- and
- stimulating a set of subcarriers with said frequency domain window during long training.
A method for generating a preamble of a frame for wireless communication, the method comprising:
- receiving a training sequence for a preamble;
- determining said training sequence comprises a first training sequence;
- and
- inserting a frequency domain window into said first training sequence.
A method for stimulating subcarriers in an orthogonal frequency division multiplexing system, the method including inserting a frequency domain window into a first training sequence of a preamble, wherein said first training sequence stimulates said subcarriers.
A device for transmitting a frame in a wireless system, the device comprising:
- a signal generator to generate a preamble for a frame;
- a multiplexer to insert a frequency domain window into a first training sequence within said preamble;
- an IFFT module to convert said frame with said preamble to a time domain signal;
- and
- a plurality of antennas to transmit said frame.
A system comprising:
- generating means for generating a training sequence for a preamble of a frame;
- inserting means for inserting a frequency domain window into said training sequence;
- and
- stimulating means for stimulating a set of subcarriers with said frequency domain window during long training.
A system comprising:
- receiving means for receiving a training sequence for a preamble;
- determining means for determining said training sequence includes a first training sequence;
- and
- inserting means for inserting a frequency domain window into said first training sequence.
Dependencies are inferred from the claim text.