SYSTEMS AND METHODS FOR REDUCING INTERFERENCE LEVEL WITHIN ACTIVELY USED FREQUENCY RANGE Russian patent published in 2021 - IPC H04W4/00 

FIELD: communication.

SUBSTANCE: first wireless network operates in a duplex transmission mode with time-division duplex (hereinafter – TDD) and contains a set of wireless receiving and transmitting stations, which are made with the possibility to share the same cell identifier and jointly transmit a set of simultaneous non-interfering pre-encoded data streams to a set of user equipment (UE) devices within the same frequency band; and the second wireless network operates in a duplex transmission mode with frequency-division duplex (hereinafter – FDD) and contains one or many antennas, wherein the first wireless network creates one or many points with zero radio frequency (RF) energy at the location of at least one of many antennas.

EFFECT: reducing the interference level outside the band in receivers and ensuring consistent use of the frequency range in the TDD transmission mode, which does not contradict the current use of the frequency range in the FDD transmission mode.

16 cl, 21 dwg