Patent ID: 8406216

Claim:
A method of transmitting data, at a base station (BS), in a wireless communication system, the method comprising: transmitting downlink data to a first mobile station (first MS) supporting a first system via a first zone of a frame; and transmitting downlink data to a second mobile station (second MS) supporting a second system via a second zone located behind the first zone by a frame offset on a time axis, wherein the first zone includes an odd number of orthogonal frequency division multiplexing (OFDM) symbols and wherein the frame offset is an offset between a start point of a frame for the first system and a start point of a frame for the second system, wherein the frame offset is defined as a number of subframe, and wherein a number of OFDM symbol of the first zone is (the frame offset*6−1) or (5+6*(the frame offset−1)).