OFDM symbol transmission method and apparatus for providing sector diversity in a mobile communication system, and a system using the same

摘要

A method and apparatus for transmitting an orthogonal frequency division multiplexing (OFDM) symbol from a base station to a mobile station in a wireless mobile communication system with a multicell/multisector structure formed by a plurality of base stations. The base station receives a plurality of complex symbols to be transmitted to the mobile station. The base station performs space-time coding (STC) on the plurality of complex symbols and selects the STC-coded symbols such that different space-time code streams are transmitted to adjacent sectors among sectors formed by the base station and other base stations. In addition, a selection pattern of the space-time code streams is updated such that it is circulated every predetermined time period, thereby providing uniform sector diversity for all mobile stations located in a sector/cell boundary.