摘要:
One embodiment is directed to a method for operating base stations in a heterogeneous network. The method may include receiving, by a first base station, an indication for a second base station to use flexible time division duplex mode (502), assessing an amount of interference that will be caused by the second base station (504)-(508), deciding how to adjust a transmission power of the second base station (509), and sending the second base station a request to adjust the transmission power (510).
摘要:
An aspect of this invention is a definition of a set of reused channel state information reference signal (CSI-RS) resources among transmission points, which can be lower power nodes, for intra-cell coordinated multi-point (CoMP) operation. Separate CSI-RS resources are defined for each transmission point for sporadic separate measurements to be made by user equipment. The sporadic measurements may be implemented with low additional overhead, and are used for generating potentially simplified CSI feedback to an evolved NodeB that enables adapting shared channel reuse and also potentially making related channel quality indicator (CQI) compensation.