5results about "Depolarization effect reduction" patented technology

Provided is a method (300) and a successive interference cancellation (SIC) based multi-user uplink receiver (200) for multi-user uplink transmission. The method comprises receiving (302) signal of one or more multiple-access (MA) scheme waveforms by a plurality of antennas (202.1, . . . , 202.R) from one or more users. The method further comprises determining (304) one or more effective channel matrices corresponding to the plurality of antennas. Thereby, the method comprises performing (306) channel equalization for signal received in a corresponding antenna by an effective channel matrix. Furthermore, the method comprises combining (308) the channel equalized signal. Subsequently, the method comprises detecting (310) Correctly Decoded Code Blocks (CCBs) and Wrongly Decoded Code Blocks (WCBs). Upon detecting CCBs and WCBs, the method comprises performing (312) the SIC on received signals from one or more users until all WCBs are converted to CCBs or a maximum number of threshold iterations are completed.

A measurement system for over-the-air testing of a device for non-terrestrial networks is described. The measurement system includes an anechoic chamber, at least one transmission antenna configured to transmit a source signal, a polarization rotator configured to rotate a polarization state of the source signal transmitted by the transmission antenna, and an electronic circuit configured to control the polarization rotator such that an ionospheric Faraday rotation is simulated. In addition, a user equipment (UE) is described. The UE is configured to measure a polarization direction of a received signal and to report the measured polarization direction by transmitting it as channel state information. Further, a method for emulating and determining a polarization mismatch in non-terrestrial communication systems is described. The method includes a step of establishing a connection between a system simulator and a device under test, wherein the system simulator indicates the used polarization to the device under test.

Aspects of the subject disclosure may include, for example, performing, by an adjusting mechanism associated with a communications system, polarization adjusting for an uplink of the communications system, and performing, by the adjusting mechanism, polarization adjusting for a downlink of the communications system, wherein a first polarization of the uplink and a second polarization of the downlink are different. Other embodiments are disclosed.

An apparatus, including an antenna array of antenna elements having signal feeds configured to convey a pair of radio frequency signals related to a pair of polarised beams; and circuitry coupled to the signal feeds and configured to vary a gain of the pair of radio frequency signals conveyed between the signal feeds and front end circuitry to vary an orientation of the pair of polarised beams.

Beam management triggering caused by polarization imbalance due to UE housing and protective cover is described. An apparatus is configured to perform a polarization imbalance measurement of signaling for a UE external coverage or enclosure. The apparatus is configured to switch to a set of beam weights for communication between the UE and the network node for polarization imbalance mitigation. The apparatus is configured to communicate with the network node based on the set of beam weights. Another apparatus is configured to transmit, for a UE, a signaling for a polarization imbalance measurement for an external coverage or enclosure of the UE. The apparatus is configured to receive, from the UE, a beamforming indication indicating a request to switch to a set of beam weights for polarization imbalance mitigation. The apparatus is configured to communicate with the UE based on the set of beam weights.