| US 7,539,263 B2 | ||
| Method for transmitting and receiving preamble sequences in an orthogonal frequency division multiplexing communication system using a multiple input multiple output scheme | ||
| Young-Ho Jung, Seoul (Korea, Republic of); Jae-Hak Chung, Seoul (Korea, Republic of); and Seung-Hoon Nam, Seoul (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd, (Korea, Republic of) | ||
| Filed on Jan. 13, 2006, as Appl. No. 11/332,531. | ||
| Claims priority of application No. 10-2005-0003464 (KR), filed on Jan. 13, 2005. | ||
| Prior Publication US 2006/0153282 A1, Jul. 13, 2006 | ||
| Int. Cl. H04B 7/02 (2006.01) | ||
| U.S. Cl. 375—267 | 13 Claims |
| 1. A method for transmitting preamble sequences from a transmitter in an orthogonal frequency division multiplexing (OFDM)
communication system using multiple transmit antennas, comprising the steps of:
segmenting a first base sequence with a first preset length into a first preset number of second sequences;
applying different time offsets to the second sequences and generating subsequences of a first preamble sequence corresponding
to the number of second sequences;
segmenting a second base sequence with a second preset length into a second preset number of third sequences;
applying different time offsets to the third sequences and generating subsequences of a second preamble sequence corresponding
to the number of third sequences;
selecting a specific subsequence from the subsequences of the first preamble sequence and transmitting the specific subsequence
through a specific transmit antenna of the multiple transmit antennas in a first preset time interval; and
selecting a third preset number of subsequences from the subsequences of the second preamble sequence, and mapping and transmitting
the selected subsequences of the second preamble sequence to the multiple transmit antennas in a second preset time interval.
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