Abstract: This invention provides methods for Distributed Massive MIMO (DM-MIMO) that use one or more central Baseband Units (BBUs), one or more Multi-User Beamformers for each BBU performing multi-user MIMO computations, and a number of RRHs distributed over a geographic area.

Abstract: This invention presents methods for estimating the uplink SINR and channel estimation error level in MU-MIMO wireless communication systems comprising the BS obtaining the channel coefficients between each receiving antenna of a BS and a transmitting antenna of a UE in the uplink; for the BS estimating the SU-MIMO SINR of a UE using the channel coefficients between a UE and the BS; for the BS estimating the channel estimation error level of a UE using the channel coefficients between a UE and the BS.

Abstract: This invention presents methods for wireless communication systems implementing SCFD operation comprising adaptively configuring FDPs based on the directional antennas at each BS; measuring the interference levels among UEs located in areas covered by an FDP and determining the UE group that transmits and receives data on the same time-frequency resource(s) under the same FDP; and measuring the channels among neighboring BSs to cancel the interferences between two BSs with SCFD operations.

Abstract: This invention presents Capacity Projectors (CaPs) for intelligent control and management that collect information on channel conditions, actual and/or predicted demand for connectivity, data throughput and its distribution for a first time period in the future using signaling and control messages, analyze the collected information to identify the configurations of the BSs and CaPs that are needed to produce desired MU-MIMO communication channels in the first time period to meet the connectivity and data throughput demand and its distribution in the first time period, and adaptively control and configure the CaPs to actively shape the MU-MIMO communication channels to meet the predicted demand and its distribution, wherein controlling and configuring the CaP comprises implementing which of the CaPs to switch to sleeping mode or work mode and adjusting one or more of transmitting power gain, antenna tilt, beam direction and/or pattern of the transmitter and/or receiver, filtering of the receiving and/or transm

Abstract: This invention presents a method and apparatuses for wireless networking comprising one or more BS with Nbs antennas; two or more SCs in the range of a BS where a SC has Nsc antennas, uses Nsc1?Nsc antennas for communication with a BS and uses Nsc2?Nsc antennas for communication with one or more UEs; at the same time a BS transmitting DL signals to K SCs using multi-user transmit BF in a frequency channel, a SC simultaneously transmitting DL signals to one or more UEs in its range using the same frequency channel; and, at the same time a BS receiving UL signals from K SCs using multi-user receive BF in a frequency channel, a SC simultaneously receiving UL signals from one or more UEs in its range using the same frequency channel. Furthermore, beamforming using antennas on the SCs is performed to reduce the inter-SC interferences.

Abstract: This invention presents methods for calibrating the channel state information in a multi-antenna system, especially for estimating channels transmitting in one direction using signaling transmitted in the other direction. The methods comprise transmitting a first and a second reference signal wherein one is a function of the other, and using the estimate of the channel in one direction, and the received signals from the two reference signals to obtain an estimate of the channel in the other direction between a transmitter of the multi-antenna system to an external wireless device.

Abstract: This invention presents a Wireless Smart Antenna apparatus (WSA) comprising a Base Station Side Radio Unit (BSSRU) and a User Equipment Side Radio Unit (UESRU), wherein if a BSSRU is distributed in the coverage area of a Base Station (BS), the BSSRU communicates with one or more (BSs) using a first frequency band F1 and simultaneously communicates with one or more UESRUs using a second frequency band F2, or if a BSSRU is integrated into a BS, the BSSRU communicates with the BS baseband through circuits and communicates with one or more UESRUs using the second frequency band F2, wherein a UESRU communicates with one or more distributed or integrated BSSRUs using the second frequency band F2 and simultaneously communicates with one or more User Equipment (UEs) using the first frequency band F1, wherein one or more WSAs enable Multi-User Multiple Input Multiple Output spatial multiplexing in the F1 frequency band with UEs distributed over their coverage areas.

Abstract: This invention presents a RF channel emulator for testing a large-scale Multiple-User Multiple-Input Multiple-Output (MU-MIMO) wireless communication system, including embodiments of using over-the-air channels for connecting a RF channel emulator and a large-scale MU-MIMO wireless communication system, calibration processes that maintain the over-the-air channel reciprocity, and emulation of carrier aggregation.

Abstract: This invention presents methods for MU-MIMO wireless communication systems comprising a BS with plural of antennas, either closely located or distributed; A plural of AFRs deployed over a coverage area, each AFR has NBF?1 BF antennas with a beam pattern facing the MU-BFer and NUF?1 UF antennas with a beam pattern facing UEs or downstream AFR(s); A channel estimation module for estimating the Total Channels between a plural of UEs and the BS with the AFRs in place; and, A MU-BFer that uses the estimates of the Total Channels to perform beamforming computations for transmitting and/or receiving multiple spatially multiplexed streams of signals to or from a plural of UEs using the same frequency resource.

Abstract: This invention presents Capacity Projectors (CaPs) for intelligent control and management that collect information on channel conditions, actual and/or predicted demand for connectivity, data throughput and its distribution for a first time period in the future using signaling and control messages, analyze the collected information to identify the configurations of the BSs and CaPs that are needed to produce desired MU-MIMO communication channels in the first time period to meet the connectivity and data throughput demand and its distribution in the first time period, and adaptively control and configure the CaPs to actively shape the MU-MIMO communication channels to meet the predicted demand and its distribution, wherein controlling and configuring the CaP comprises implementing which of the CaPs to switch to sleeping mode or work mode and adjusting one or more of transmitting power gain, antenna tilt, beam direction and/or pattern of the transmitter and/or receiver, filtering of the receiving and/or transm

Abstract: This invention presents methods for estimating MU-MIMO channel information using SU-MIMO channel information to choose a modulation and channel coding appropriate for the quality of the MU-MIMO channels, for adaptively selecting MU-MIMO precoding methods based on estimations of a plural of UEs and for compensating hardware impairments in MU-MIMO precoding.

Abstract: This invention presents methods for targeting and killing types of cells or organisms using Magneto-Electric Nano-Particles under the control of an external magnetic field. A method was also presented for using Magneto-Electric Nano-Particles to stimulate or rejuvenate cells under an external magnetic field.

Abstract: This invention presents methods for targeting and killing types of cells or organisms using Magneto-Electric Nano-Particles under the control of an external magnetic field. A method was also presented for using Magneto-Electric Nano-Particles to stimulate or rejuvenate cells under an external magnetic field.

Abstract: This invention presents methods for MU-MIMO wireless communication systems comprising a BS with plural of antennas placed as a linear array or planar array, plural of UEs, for conducting two-level signal processing at the BS to reduce the system implementation complexity, i.e., the RF precoding/combination and the baseband precoding/detection, for the BS to obtain the second-order statistical information of the channel matrix of each UE to computing the RF precoding matrix through a much smaller number of pilots than that of the transceiving antennas at the BS, where the second-order statistical information of the channel matrix can be obtained through the uplink reference signals or downlink reference signals plus uplink feedback.

Abstract: This invention presents methods for signal detection and transmission in MU-MIMO wireless communication systems, for inverse matrix approximation error calculation, for adaptively selecting the number of multiplexed UEs in a MU-MIMO group, for adaptively choosing a modulation and channel coding scheme appropriate for the quality of MU-MIMO channels with the approximation error of matrix inverse being incorporated.

Abstract: This invention presents a method for frequency resource allocation in a MU-MTMO system comprising assigning UEs with CQI higher than a predefined value and/or CEE lower than a predefined value and/or SII lower than a predefined value to a first group and the rest UEs to a second group, allocating different frequency resource to each group, and applying different precoding or decoding algorithm to each group.

Abstract: This invention provides methods for Distributed Massive MIMO (DM-MIMO) that use one or more central Baseband Units (BBUs), one or more Multi-User Beamformers for each BBU performing multi-user MIMO computations, and a number of RRHs distributed over a geographic area.

Abstract: This invention presents a RF channel emulator for testing a millimeter wave (mmWave) wireless communication system, including embodiments of using over-the-air channels for connecting a RF channel emulator and mmWave wireless communication system, placement of antenna arrays, antenna array design, antenna selection, and polarization matrices estimation that complete both the beam scanning at the BS and UEs and normal data transmission.

Abstract: This invention presents a millimeter wave (mmWave) Customer Premise Equipments (CPEs) employing a forward processing equipment, such as a small cell, a decode-and-forward repeater, an amplify-and-forward repeater, etc., that is able to simultaneously serving its local customer premise and another or other mmWave CPEs; and a method for a Base-Station (BS) to provide mmWave backhaul links to multiple mmWave CPEs where a mmWave CPE within the Line-of-Sight (LoS) coverage of the BS is directly served by the BS in one set of time-frequency-spatial resources, while a mmWave CPE out of the LoS coverage of the BS is served by another a mmWave CPE within or out of the LoS coverage of the BS in another set of time-frequency-spatial resources.

Abstract: This invention presents methods and systems for RF path and antenna connection and switch in wireless communication comprising an electromagnetic lens and M antennas; N (N<=M) radio frequency (RF) transmitting and receiving chains/paths that contain Low Noise Amplifiers (LNAs), RF filters, mixers, amplifiers; a plural of digital to analog converters (DACs) and analog to digital converters (ADCs); a connection and switch network that maps the signals from M antennas to N RF paths in the UL or mapping the signals from N RF path to M antennas in the DL, and a processor unit that measures and estimates the receiving signal strength (RSS) or the equivalent metrics on each antenna for each user equipment (UE) based on the received UL reference signals, and drives signals to control the connection and switch network to connect RF paths and antennas for data transmission.