| US 7,548,564 B2 | ||
| Method and apparatus for transmitting data based on OFDM | ||
| Seok Bong Hyun, Daejeon (Korea, Republic of); Byung Jo Kim, Daejeon (Korea, Republic of); and Seong Su Park, Daejeon (Korea, Republic of) | ||
| Assigned to Electronics and Telecommunications Research Institute, Daejeon (Korea, Republic of) | ||
| Filed on Dec. 09, 2005, as Appl. No. 11/299,184. | ||
| Claims priority of application No. 10-2004-0104296 (KR), filed on Dec. 10, 2004; and application No. 10-2005-0039173 (KR), filed on May 11, 2005. | ||
| Prior Publication US 2006/0126492 A1, Jun. 15, 2006 | ||
| Int. Cl. H04J 1/00 (2006.01) | ||
| U.S. Cl. 370—480 [370/208; 370/476] | 7 Claims |
| 1. A method for transmitting data based on OFDM (Orthogonal Frequency Division Multiplexing), the method comprising the steps
of:
forming a plurality of packets suitable for a selected transmission mode from data input to a transmitter;
determining a transfer rate of the data and required quality of service;
when a data transfer rate is determined to be low and a synchronous connection oriented link should be maintained, dividing
each of the packets into a plurality of divided sub-packets, wherein a power supply duration of the transmitter is reduced
from a transmission end time of each of the divided sub-packets to a transmission start time of a next sub-packet; and
transmitting the divided sub-packets, wherein when the divided sub-packets are transmitted, the power supply duration of the
transmitter is reduced.
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