FIELD: information technology.
SUBSTANCE: method of creating explicit and implicit feedback relating to a direct communication channel for linear precoding involves evaluation of the direct communication channel in order to form a matrix. Part of the matrix is quantised in order to give explicit feedback as a result, and the quantised data are transmitted over a feedback channel which provides implicit feedback which corresponds to the remaining part of the matrix. The implicit feedback is not identical to the explicit feedback and the implicit feedback provides information on part of the matrix which is different from the quantised part.
EFFECT: easier evaluation of a direct channel by using explicit and implicit feedback.
39 cl, 12 dwg
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