Patent ID: 8965430
Filing Date: 2015-02-24
Classification: H04B,H04L,H04W

Abstract:
1. A method in a wireless communication network node of choosing a reporting mode to be used by an individual user among a plurality of active users competing for resources within a defined system bandwidth used for serving said plurality of active users, said method comprising: estimating a coherence bandwidth of a transmission channel to or from the user, said coherence bandwidth representing a frequency selectivity of the transmission channel; predicting a transmission bandwidth for the user, based at least in part on a total number of said active users; evaluating said transmission bandwidth with respect to said coherence bandwidth and said system bandwidth, wherein said step of evaluating yields a decision metric whose numeric value indicates whether frequency-selective channel quality reporting or frequency-selective precoder reporting is preferable; and determining whether to configure the user to use frequency-selective channel quality reporting or frequency-selective precoder reporting, or neither, in dependence on said evaluation.