METHOD AND APPARATUS FOR DETERMINING THE NECESSITY OF TRANSMISSION OF A PRIMARY AND A SECONDARY PILOT CHANNEL AND IMPROVEMENT OF CHANNEL ESTIMATION

摘要

A method and apparatus provides for efficient data rate control and power control processes by transmitting a primary and a secondary pilot channel associated with a data channel. The primary and secondary pilot channels are used for decoding the data. A ratio of power levels of the primary and secondary pilot channels is based on at least one of the data rate and payload size of the data channel. The power level of the primary pilot channel is maintained independent of at least one of data rate and payload size of the data channel. The power of the secondary pilot channel may be adjusted based on at least one of data rate and payload size of the data channel.