USER EQUIPMENT SELECTION

Aspects of the disclosure relate to a selection scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network to identify which users to schedule simultaneously during the same time slot. For downlink communications and a particular frequency wholeband or sub-band, the schedul...

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Bibliographic Details
Main Authors CHEN, Jinghu, FAN, Michael, Mingxi, ZHAO, Wanlun, KADOUS, Tamer, Adel, BLACK, Peter, John
Format Patent
LanguageEnglish
French
German
Published 09.03.2022
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
WIRELESS COMMUNICATIONS NETWORKS
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Summary:Aspects of the disclosure relate to a selection scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network to identify which users to schedule simultaneously during the same time slot. For downlink communications and a particular frequency wholeband or sub-band, the scheduler can determine downlink channel information for channels between base stations and UEs. The scheduler can then determine a strength of the channels, order the UEs using a fairness metric based on the channel strengths, and compute one or more QR decompositions to identify whether a spatial dimension of a UE is roughly or approximately orthogonal to spatial dimension(s) of other UEs selected to be served during a time slot being scheduled. If the spatial dimensions are roughly or approximately orthogonal, the scheduler selects the UE to be served at the same time as other UEs already selected. Uplink UE selection features are also disclosed.
Bibliography:Application Number: EP20200798429