![]() A reference signal, which is not related with uplink data or uplink control information which is transmitted by the terminal among such reference signals, is called a sounding reference signal (SRS). The cooperated transmission is a technology that improves and system performance and efficiency by transmitting signals to the same receiving terminal by cooperation of a plurality of transmitting terminals.įurther, the terminal transmits reference signals to measure the uplink channel state. The CA is a technology that provides a broadband by aggregating a plurality of carriers including a narrow band. ![]() Some examples which may be applied to a next-generation communication technology such as LTE-A are carrier aggregation (CA) and cooperated multi-point transmission. LTE-Advanced is one of the prime candidates for IMT-Advanced. The 3GPP (3rd Generation Partnership Project) transmission scheme based on OFDMA (Orthogonal Frequency Division Multiple Access)/SC-FDMA (Single Carrier-Frequency Division Multiple Access) system to meet the requirements of IMT-Advanced standard LTE (Long Term Evolution improved LTE-Advanced) is being prepared. ![]() The support of multimedia services in IP (Internet Protocol)-based IMT-Advanced stop and slow the progress of the move from 1 Gbps to 100 Mbps data transfer rate from the fast-moving state and goal. The third generation after the next generation mobile communication system IMT (International Mobile Telecommunication)-Advanced standardization work in the ITU-R (International Telecommunication Union Radio communication sector). This specification relates to a wireless communication, and more particularly, to a method and apparatus for transmitting a sound reference signal by a terminal.
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