Wireless data transceiving method in multi-point transmission environment

摘要

Disclosed is a wireless data transceiving method in a multi-point transmission environment. A data transmitting method of a base station includes determining priorities of a plurality of terminals, allocating a symbol to be transmitted to a low-priority terminal to a base layer, allocating a symbol to be transmitted to a high-priority terminal to an enhancement layer, performing hierarchical modulation, and transmitting the hierarchically modulated symbol. Accordingly, by combining CoMP transmission technology and hierarchical modulation, a data capacity for a cell edge terminal increases and necessary resources decrease.

主权项

1. A data transmitting method of a base station in a multi-point transmission environment, the method comprising:
determining priorities of a plurality of terminals; allocating a symbol to be transmitted to a low-priority terminal to a base layer, allocating a symbol to be transmitted to a high-priority terminal to an enhancement layer, and performing hierarchical modulation; and transmitting the hierarchically modulated symbol, wherein the determining of the priority comprises allocating a higher priority to at least one of the terminals receiving single-point transmission from the base station than at least one of the terminals receiving multi-point transmission from the base station and an adjacent base station or allocating a high priority to a terminal having a high signal to noise ratio (SNR) on the basis of downlink channel state information feedback of the terminals.