Abstract:
Disclosed is a communication method in a wireless communication system on the basis of a carrier aggregation. The communication method on the basis of a carrier aggregation comprises the steps of: receiving a PDSCH from a base station via a subframe n of a TDD cell; and transmitting, to the base station, a PUCCH including a response to the PDSCH via a subframe n+4 of an FDD cell. Accordingly, an HARQ process may be performed efficiently.
Abstract:
Cell and terminal discovery methods are disclosed. A discovery method performed in a terminal may include transmitting a trigger signal; receiving a discovery signal from at least one cell which receives the trigger signal; measuring the discovery signal; and reporting a measurement result of the discovery signal to a serving cell. Therefore, cell and terminal discoveries may be performed efficiently in cellular mobile communication systems.
Abstract:
Disclosed are methods for providing interference information in mobile communication systems. The method for providing interference information performed in a base station comprise obtaining information about at least one intra-cell interference signal interfering desired signals of a victim terminal, and transferring the information about at least one intra-cell interference signal to the victim terminal. In the method, the information about at least one intra-cell interference signal may include either information related to generation of reference signal for the at least one intra-cell interference signal or frequency resource allocation information and precoding matrix indicator (PMI) allocation information for the at least one intra-cell interference signal. Thus, the victim terminal may operate an advanced receiver based on the received information thereby canceling interferences efficiently.