In a radio communication system that transmits reference signals for identifying a plurality of
base stations from the base station to mobile stations, base station identification patterns for …

A pilot pattern set time interval of an OFDM communication system is divided into a plurality
of sub-time intervals. Pilot patterns are generated considering a coherence bandwidth and a …

A method for transmitting reference signals in a radio communication system in which a
frequency band is divided into a plurality of sub-frequency bands. The reference signals are …

A wireless communication system that divides an entire frequency band into a plurality of
subcarrier bands and includes a plurality of subchannels, each of which is a set of a …

An apparatus and method for transmitting/receiving a pilot pattern set to distinguish a base
station in an FDM commu nication system. The method divides a total frequency band width …

A receiver in an OFDM based communication system is adapted to perform channel
estimation using a received reference signal transmitted from at least one antenna The …

A method and apparatus are provided for selecting and signalling the identity of sub-carriers
to be used for transmission of data in a radio communication system, and for using other sub …

An apparatus and method for assigning subchannels of a transmitter in a communication
system. The method includes dividing an entire frequency band into m subcarrier groups; …

A method and apparatus are provided for selecting and signalling the identity of sub-carriers
to be used for transmission of data in a radio communication system, and for using other sub …

A radio communication system divides an entire frequency band into a plurality of subcarrier
bands, forms a symbol with signals on the subcarrier bands, forms a frame with a plurality of …