METHOD AND APPARATUS FOR MULTIPLEXING CDM PILOT AND FDM DATA

摘要

Techniques for sending control information in a wireless communication sy stem are described. In an aspect, a user equipment (UE) may send data for co ntrol information in a resource block with frequency division multiplexing ( FDM) and may send pilot in the resource block with frequency-domain code div ision multiplexing (CDM). The UE may determine multiple groups of subcarrier s to use to send data in multiple symbol periods of the resource block based on a predetermined pattern or a pseudo-random hopping pattern. Each group m ay include consecutive subcarriers to support localized FDM. The multiple gr oups may include different subcarriers to provide frequency diversity and po ssibly interference averaging. The UE may send modulation symbols for data ( e.g., in the time domain) on the multiple groups of subcarriers in the multi ple symbol periods. The UE may send a reference signal sequence for pilot on multiple subcarriers in each symbol period for pilot.