METHOD FOR TRANSMITTING AND RECEIVING UPLINK CHANNEL SOUNDING REFERENCE SIGNALS IN WIRELESS COMMUNICATION SYSTEMS

摘要

A method for trasceiving uplink channel sounding reference signals is provided to satisfy a single carrier transmission characteristic in SC-FDMA, even in case one terminal needs to transmit CS(Channel Sounding), and RS(Reference Signal) control channel at one subframe. An uplink system bandwidth(601) consists of N first RUs(602) and M second RUs(603) used for controlling channel, and a center band between the first and second RUs. In case of EUTRA, ACK/NACK symbols are transmitted using 4 LBs(Long Blocks), and three RS are transmitted using 3 LBs at control channel slots(608,609,610). As shown in the figure, The CS and RS channels(600) can be multiplexed with other uplink channels. The CS and RS channels are located a first LB area of center band where data channel is mapped. The CS and RS transmitted from a plurality of terminals became CDM(Code Domain Multiplexing) using cyclic shift of ZC(Zadoff-Chu) sequence, or multiplexed in the different frequency resource.