Patent ID: 9065493
Filing Date: 2015-06-23
Classification: H04B,H04W

Abstract:
1. A communication method of a target base station in a multi-cell communication system, the communication method comprising: obtaining long-term channel information associated with a long-term channel between the target base station and at least one target terminal served by the target base station; generating, based on the long-term channel information, scheduling information associated with the target base station by scheduling sub-bands of the target base station; transmitting scheduling information associated with the target base station to at least one neighbor base station and receiving scheduling information associated with the at least one neighbor base station, wherein the transmitting and the receiving are based on a predetermined period; and re-scheduling a plurality of sub-bands, the re-scheduling comprising assigning a terminal and a multiple-input multiple-output (MIMO) transmission scheme, from among a plurality of MIMO transmission schemes, to each individual sub-band, from among the plurality of sub-bands, based on the scheduling information associated with the target base station and based on the scheduling information associated with the at least one neighbor base station received from the at least one neighbor base station, wherein the long-term channel information is channel information associated with a long-term period that includes at least two predetermined short-term periods, and comprises at least one of information associated with a signal to interference and noise ratio (SINR) of a wideband, information associated with a correlation coefficient matrix of a transmission antenna of the target base station and a reception antenna of the at least one target terminal, information associated with channel quality information (CQI) with respect to each sub-band and information associated with a channel direction information (CDI) with respect to each sub-band, information associated with a moving speed of the at least one target terminal, and synchronization information between the at least one neighbor base station and the target base station with respect to the at least one target terminal.