Patent ID: 7889633
Filing Date: 2011-02-15
Classification: H04B,H04L

Abstract:
1. A method of transmitting a basic unit in uplink by a mobile station (MS) in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system, the method comprising: forming the basic unit which size is 4 subcarriers by 6 OFDMA symbols, the basic unit containing a plurality of pilot and data resource elements (REs); configuring the pilot REs for multiple antennas in the basic unit at intervals of 3 subcarriers in a frequency axis and at intervals of 5 OFDMA symbols in a time axis; and transmitting the basic unit in uplink, wherein the RE is a time-frequency resource defined by one OFDMA symbol and one subcarrier, wherein the pilot and data REs are configured in the basic unit as in Pattern Table 2 expressed as follows: