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AssigneeSequans Communications
InventorAlexander Chiskis
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Disclosed are example embodiments of systems, methods, and devices for enhancing reciprocity-based MU-MIMO performance in a wireless communication system. To incorporate devices with many antenna elements, extend the communication range, and reduce response and adaptation times single and multiple step dimensionality reduction schemes (which may also incorporate interference rejection) are constructed and applied at the UE antenna array. The UE Effective Antennas can be time-variable as well as their number be different from the information layer's number. The schemes parts can have different frequency-time supports and update rates. Methods to deliver from UEs the reduced dimension physical channel matrices to the BS to facilitate the MU-MIMO DL BS precoder construction are disclosed (including different D2A and A2D number cases). BS may optionally facilitate EAs selection. For equal downlink and uplink EAs parts, DL precoder construction may be further assisted via channel reconstruction from decoded uplink data (escaping channel ageing).
A method for enhancing Downlink (DL) Reciprocity-based MU-MIMO performance in a wireless communication system, comprising the steps of:
A method for enhancing Downlink (DL) Reciprocity-based MU-MIMO performance, performed by a base station, comprising the steps of:
A base station created to enhance reciprocity-based MU-MIMO performance in a wireless communication system, the base station comprising:
A User Equipment (UE) device for enhancing Downlink (DL) Reciprocity-based MU-MIMO performance in a wireless communication system, comprising:
A method for enhancing Downlink (DL) Reciprocity-based MU-MIMO performance in a User Equipment (UE), comprising the steps of:
Dependencies are inferred from the claim text.