| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pilot signal transmission sequence and to provide method for use in a multi-sector cell. <P>SOLUTION: Pilots are transmitted to different sectors at different known power levels. A pilot is transmitted to adjacent sector, while a zero pilot is transmitted to the adjacent sector. This represents transmission of a NULL pilot signal. A cell NULL is also supported, and in this case, NULL pilots are transmitted to each sector of a cell at the same time. Multiple pilot signal measurements are made. At least two channel quality indicator values are generated from measurement values corresponding to at least two pilot signals of different power levels. The two values are transmitted back to a base station, and the base station uses both values to determine the transmission power required to obtain a desired SNR at a wireless terminal. The wireless terminal also reports information indicating the location to a sector boundary. <P>COPYRIGHT: (C)2011,JPO&INPIT |
