FIELD: radio engineering, communication.
SUBSTANCE: in one model, a cell may receive precoding information from a first user equipment (UE) communicating with the cell and spatial feedback information (SFI) from a second UE not communicating with the cell. The cell may select a precoding matrix based on the precoding information and the SFI. The precoding matrix may direct a transmission towards the first UE and away from the second UE. The cell may send a reference signal based on the precoding matrix, send a resource quality information (RQI) request to the first UE, receive RQI determined by the first UE based on the reference signal, and determine a modulation and coding scheme (MCS) based on the RQI. The cell may then send a data transmission to the first UE with the precoding matrix and in accordance with the MCS.
EFFECT: good quality of data transmission, even without powerful non-serving base stations.
61 cl, 16 dwg
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Authors
Dates
2013-09-20—Published
2009-05-15—Filed