METHODS AND APPARATUS FOR DOWNLINK PDSCH POWER SETTING

摘要

Methods and apparatus for transmitting power setting information in a downlink Physical Downlink Shared Channel (PDSCH) in a communication system. In this communication system, a plurality of methods for calculating traffic-to-pilot ratios (T2P) are established. In addition, a mapping scheme between a plurality of overhead signals and a plurality of reference signal (RS) overhead ratios, ? RS and the plurality of T2P calculation methods is established. A user-specific T2P ratio Pb,k/PRS for certain OFDM symbols, a RS overhead ratio ? RS and a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. Then, an overhead signal corresponding to both of the assigned RS overhead ratio ? RS and the assigned T2P calculation method is selected in accordance with the mapping scheme and is transmitted to the wireless terminal.