METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING MULTI-USER CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM BY USING MULTIPLE ANTENNAS

摘要

In a wireless communication system, a control channel is required to efficiently use limited resources. However, control channel resources reduce data channel resources used for transmitting data as system overhead. In an orthogonal frequency division multiplexing (OFDM) based long term evolution (LTE) system, one subframe consists of fourteen OFDM symbols, up to three OFDM symbols are used as the control channel resources, and the remaining eleven OFDM symbols are used as the data channel resources. Accordingly, in an LTE-advanced (LTE-A) system capable of transmitting more user data, system capacity increase can be restricted due to existing limited control channel resources. Therefore, increase of the control channel resources is inevitable. The present invention relates to a multi-user control channel transmitting/receiving method using a spatial division multiplexing technique in the data channel region. According to the present invention, the method comprises the following steps of: transmitting information about resource blocks; transmitting information about the number of symbols; determining a reference signal; mapping control information and the reference signal; and transmitting the mapped control information and reference signal.;COPYRIGHT KIPO 2017