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US 2026/0129505 A1Published application
Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
AssigneeRearden, LLC
InventorsAntonio Forenza, Stephen G. Perlman
Life of this patent
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Abstract
Systems and methods are described for exploiting inter-cell interference to achieve multiplexing gain in a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”). For example, a MU-MAS of one embodiment comprises a wireless cellular network with multiple distributed antennas operating cooperatively to eliminate inter-cell interference and increase network capacity exploiting inter-cell multiplexing gain.
Claims12
A wireless system comprising:
- a plurality of wireless user equipment devices (“UEs”);
- and
- a base transceiver station (“BTS”) comprising more than eight antennas, the BTS configured to be communicatively coupled to the plurality of UEs and configured to simultaneously transmit on the more than eight antennas overlapping wireless waveforms and, at a same time or different time, simultaneously transmit or receive at least one or more of a 3GPP cell-specific reference signal (“CRS”), a cell-specific channel state information reference signal (“CSI-RS”), a sounding reference signal (“SRS”), or a demodulation reference signal (“DMRS”);
- wherein the BTS is configured to utilize precoding to combine N streams of information from M streams of bits to create a plurality of concurrent non-interfering downlink (“DL”) data links;
- wherein the BTS is configured to maintain a plurality of concurrent non-interfering DL links between the more than eight antennas and the plurality of UEs within a same frequency band when transmitting and configured to maintain a plurality of uplink (“UL”) links between the more than eight antennas and the plurality of UEs within a same frequency band when receiving;
- wherein each of the plurality of UEs is configured to receive a DL data link from the BTS and transmit a UL data link to the BTS, and is configured to transmit or receive one or more of the 3GPP CRS, CSI-RS, SRS, or DMRS signals;
- and
- wherein M and N are integer numbers less than or equal to the number of the more than eight antennas.
5 more elements
A method implemented within a wireless system including a plurality of user equipment devices (UEs) and a base transceiver station (“BTS”) comprising:
- simultaneously transmitting, by the BTS, overlapping wireless waveforms from more than eight antennas, and at a same or different time, simultaneously transmitting or receiving one or more of a 3GPP cell-specific reference signal (“CRS”), cell-specific channel state information reference signal (“CSI-RS”), a sounding reference signal (“SRS”), or a demodulation reference signal (“DMRS”);
- precoding, by the BTS, to combine N streams of information from M streams of bits to create:
- a. a plurality of concurrent non-interfering downlink (“DL”) data links;
- and
- b. a plurality of concurrent non-interfering uplink (“UL”) data links;
- simultaneously receiving, by each of the plurality of UEs, DL data link from the BTS, and at a same or different time each of the plurality of UEs transmits or receives one or more of the 3GPP CRS, CSI-RS, SRS, or DMRS signals,
- maintaining, by the BTS, a plurality of concurrent non-interfering DL links between the more than eight antennas and the plurality of UEs within a same frequency band when transmitting and maintaining a plurality of concurrent non-interfering UL links between the more than eight antennas and the plurality of UEs within a same frequency band when receiving;
- and
- wherein M and N are integer numbers less than or equal to the number of the more than eight antennas.
6 more elements
Dependencies are inferred from the claim text.