Abstract: A method and device for interference coordination in a communication system and the corresponding communication system, mobile station and base station (BS) are disclosed. In the method for interference coordination, a BS of a Pico Cell shifts a transmission frame backwards; a BS of a Macro Cell selects a sub-frame for transmitting a Channel State Information-Reference Signal (CSI-RS) from transmission frames of the Macro Cell itself, to enable the sub-frame of the BS of Macro Cell for transmitting CSI-RS to at least not overlap a sub-frame of the BS of the Macro Cell for transmitting a public channel and a sub-frame of the BS of Pico Cell partially; and the sub-frame of the BS of the Macro cell for transmitting the public channel at least does not overlap the sub-frame of the BS of Pico Cell for transmitting the public channel partially.

Abstract: A method includes receiving downlink data transmitted by a base station via a primary and secondary component carrier in a predetermined order; detecting the received downlink data to obtain indication information on correctly receiving and wrongly receiving the downlink data, or no control information received, allocating corresponding uplink resources according to the primary and secondary component carrier where the detected downlink data is present; arranging the indication information obtained through detecting according to the order of transmitting the downlink data by the base station to obtain an indication information sequence; generating an uplink response signal and determining the uplink resources used to feed back the uplink response signal; transmitting the uplink response signal to the base station using the determined uplink resources, so the base station determines the downlink data retransmitted according to the uplink response signal fed back in the uplink resources, enabling the BS avoid u

Abstract: The invention provides a relay device and a wireless communication method thereof. The A wireless communication method for a relay device includes the following steps: receiving a first signal destined for a second communication device from a first communication device; decoding the received first signal and determining whether a decoding result is correct; generating a first decoding response signal indicating whether the decoding result of the first signal is correct; and sending the first decoding response signal to the first communication device and the second communication device.