Mobile communication system and channel transmission/reception method thereof

摘要

A method for transmitting a physical channel in a Time Division Duplex (TDD) communication system capable of carrier aggregation is provided for supporting aggregation of carriers having different TDD configurations. The communication method of a terminal in a TDD radio communication system accomplishing broadband through carrier aggregation of primary and secondary cells, of which aggregated carriers have different TDD Uplink-Downlink (UL-DL) configurations, includes receiving Physical Downlink Shared Channel (PDSCH) through the secondary cell, and transmitting acknowledgement information corresponding to the PDSCH to a base station, where acknowledgement information is transmitted on a Physical Uplink Control CHannel (PUCCH) of the primary cell.

主权项

1. A communication method of a terminal in a Time Division Duplex (TDD) radio communication system accomplishing broadband through carrier aggregation of primary and secondary cells of which aggregated carriers have different TDD Uplink-Downlink (UL-DL) configurations, the method comprising:
receiving a Physical Downlink Shared CHannel (PDSCH) through the secondary cell; determining M based on a maximum value between Mprimary and Msecondary, wherein M is an integer greater or equal to 1, wherein Mprimary is a number of downlink associated subframe for a subframe n of the primary cell TDD UL-DL configuration, and wherein Msecondary is a number of downlink associated subframe for a subframe n of the secondary cell TDD UL-DL configuration; and transmitting acknowledgement information corresponding to the PDSCH at the subframe n of the primary cell to a base station based on the determined M.