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AssigneeInterDigital Patent Holdings, Inc.
InventorsAfshin Haghighat, Mohammad Irfan, Zeeshan Sattar
Estimating the term…
Reconfigurable Intelligent Surface devices, RIS, may be used to improve receipt of radio signals received by wireless transmit-receive units, WTRUs, in a given area. In such area, WTRUs may receive radio signals directly from the transmitter, and indirectly, via reflection of the radio signals from the transmitter by the RIS device. A RIS may consist of programmable sub-wavelength sized unit cells placed in close proximity. Each unit cell behaves like a scatterer. Embodiments of a new RIS structure are described here, being based on a nearly passive reflecting platform. In a Nearly-Passive RIS structure according to embodiments, NP-RIS, each unit cell is programmed to have a constant invariable phase-shift. Embodiments of a unit cell selection method are described, to control the reflected wave by selecting a subset of unit cells whose reflection could assist coherent alignment of the reflected wave with the main direct signal at the WTRU.
1-18. (canceled)
A method implemented in a wireless transmit-receive unit (WTRU) the method comprising:
A wireless transmit-receive unit (WTRU) device, the WTRU device comprising at least one processor configured to:
Dependencies are inferred from the claim text.