Method and apparatus for transmitting uplink and downlink data in TDD system

摘要

A method and an apparatus for transmitting uplink/downlink data on Time Division Duplexing (TDD) carriers are provided. The method includes transmitting to a base station in a Primary Cell (PCell) and a Secondary Cell (SCell), a TDD Uplink-Downlink (UL-DL) configuration of the PCell having a DL subframe super-set or UL subset that are common in the SCell and the PCell and a TDD UL-DL configuration differing from each other, receiving data at a first subframe in the SCell, and transmitting, when a UL subframe set of the SCell is a subset of a UL subframe of the PCell, a feedback corresponding to the data at a subframe predefined in association with the first subframe in the PCell according to the TDD UL-DL configuration of the SCell. The method supports both the self-scheduling and cross-carrier scheduling of the UE using carriers of different TDD configurations.

主权项

1. A method in a wireless communication system, the method comprising:
receiving, by a terminal, a first message including a first uplink/downlink (UL/DL) configuration for a primary cell (PCell) from a base station; receiving, by the terminal, a second message including a second UL/DL configuration for a secondary cell (SCell) from the base station; receiving, by the terminal, a physical downlink shared channel (PDSCH) on a first subframe of the SCell from the base station; and transmitting, by the terminal, a hybrid automatic repeat request-acknowledge (HARQ-ACK) corresponding to the PDSCH on a second subframe to the base station, wherein the second subframe is determined based on a scheduling type for the terminal and a relationship between the first UL/DL configuration and the second UL/DL configuration, if the first UL/DL configuration is different from the second UL/DL configuration.