公开(公告)号：US11923931B2

公开(公告)日：2024-03-05

申请号：US18144838

申请日：2023-05-08

申请人： Rearden, LLC

发明人： Antonio Forenza ,  Stephen G. Perlman

IPC分类号： H04B7/04 ,  H04B7/0456 ,  H04B7/06

CPC分类号： H04B7/0456 ,  H04B7/0626

摘要： A system and method are described for distributed antenna wireless communications. For example, a method implemented within a wireless transmission system comprised of a plurality of wireless client devices and a plurality of distributed antennas is described comprising: computing channel state information (CSI) for wireless communication channels between the plurality of base distributed antennas and the wireless client devices; computing precoding weights from the channel state information; precoding data using the precoding weights prior to wireless transmission from the plurality of distributed antennas to the wireless client devices; and wirelessly transmitting the precoded data from the distributed antennas to each of the wireless client devices, wherein the precoding causes radio frequency interference between the plurality of base stations but simultaneously generating a plurality of non-interfering radio frequency user channels between the plurality of distributed antennas and the plurality of wireless client devices.

公开(公告)号：US20220158700A1

公开(公告)日：2022-05-19

申请号：US17586765

申请日：2022-01-27

申请人： Rearden, LLC

发明人： Antonio Forenza ,  Stephen G. Perlman

IPC分类号： H04B7/0456 ,  H04B7/06

摘要： A system and method are described for distributed antenna wireless communications. For example, a method implemented within a wireless transmission system comprised of a plurality of wireless client devices and a plurality of distributed antennas is described comprising: computing channel state information (CSI) for wireless communication channels between the plurality of base distributed antennas and the wireless client devices; computing precoding weights from the channel state information; precoding data using the precoding weights prior to wireless transmission from the plurality of distributed antennas to the wireless client devices; and wirelessly transmitting the precoded data from the distributed antennas to each of the wireless client devices, wherein the precoding causes radio frequency interference between the plurality of base stations but simultaneously generating a plurality of non-interfering radio frequency user channels between the plurality of distributed antennas and the plurality of wireless client devices.

公开(公告)号：US11189917B2

公开(公告)日：2021-11-30

申请号：US15792610

申请日：2017-10-24

申请人： REARDEN, LLC

发明人： Stephen G. Perlman ,  Roger van der Laan ,  Fadi Saibi ,  Mario Di Dio ,  Allan Ievers ,  Benyavut Jirasutayasuntorn ,  Lynne Freeman ,  Antonio Forenza

IPC分类号： H01Q1/46 ,  H04B1/40 ,  H04B1/38

摘要： Systems and methods are described to create radio daisy chains for convenient and aesthetically pleasing high-density radio deployments.

公开(公告)号：US20210328633A1

公开(公告)日：2021-10-21

申请号：US17361252

申请日：2021-06-28

申请人： REARDEN, LLC

发明人： Stephen G. Perlman ,  Antonio Forenza ,  Mario Di Dio ,  Fadi Saibi

IPC分类号： H04B7/0456 ,  H04B7/06 ,  H04B15/00 ,  H04L5/14

摘要： Systems and methods are described to mitigate interference to out of band receivers using out of band training signals.

公开(公告)号：US11070258B2

公开(公告)日：2021-07-20

申请号：US16578265

申请日：2019-09-20

申请人： Rearden, LLC

发明人： Stephen G. Perlman ,  Antonio Forenza

IPC分类号： H04W52/42 ,  H04B7/0426 ,  H04B7/024 ,  H04B7/06 ,  H04L1/00 ,  H04B17/336 ,  H04L5/00 ,  H04L25/03 ,  H04W16/18 ,  H04W52/22 ,  H04W52/36

摘要： A system and method are described which enable planned evolution and obsolescence of multiuser wireless spectrum. One embodiment of such a system includes one or multiple centralized processors and one or multiple distributed nodes that communicate via wireline or wireless connections. The distributed nodes may share their identification number and other reconfigurable system parameters with the centralized processor. The information about all distributed nodes may be stored in a database that is shared by all centralized processors. The reconfigurable system parameters may comprise power emission, frequency band, modulation/coding scheme. The distributed nodes may be software defined radios such as FPGA, DSP, GPU and/or GPCPU that run algorithms for baseband signal processing and may be reconfigured remotely by the centralized processor. A cloud wireless system may be used wherein the distributed nodes are reconfigured periodically or instantly to adjust to the evolving wireless architecture.

公开(公告)号：US10749582B2

公开(公告)日：2020-08-18

申请号：US16436864

申请日：2019-06-10

申请人： Rearden, LLC

发明人： Antonio Forenza ,  Erik Lindskog ,  Stephen G. Perlman

IPC分类号： H04B7/0456 ,  H04B7/06 ,  H04B7/0426 ,  H04W24/02 ,  H04B7/024 ,  H04W24/08 ,  H04B7/0452

摘要： Systems and methods are described for coordinating transmissions in distributed wireless systems via user clustering. For example, a method according to one embodiment of the invention comprises: measuring link quality between a target user and a plurality of distributed-input distributed-output (DIDO) distributed antennas of base transceiver stations (BTSs); using the link quality measurements to define a user cluster; measuring channel state information (CSI) between each user and each DIDO antenna within a defined user cluster; and precoding data transmissions between each DIDO antenna and each user within the user cluster based on the measured CSI.

公开(公告)号：US10547358B2

公开(公告)日：2020-01-28

申请号：US13844355

申请日：2013-03-15

申请人： REARDEN, LLC

发明人： Antonio Forenza ,  Fadi Saibi ,  Timothy A. Pitman ,  Stephen G. Perlman

IPC分类号： H04W72/08 ,  H04W16/14 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/024 ,  H04B17/12 ,  H04L25/02

摘要： Systems and methods are described for radio frequency (RF) calibration in a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”) exploiting uplink/downlink channel reciprocity. The RF calibration is used to compute open-loop downlink precoder based on uplink channel estimates, thereby avoiding feedback overhead for channel state information as in closed-loop schemes. For example, a MU-MAS of one embodiment comprises a wireless cellular network with one or multiple beacon stations, multiple client devices and multiple distributed antennas operating cooperatively via precoding methods to eliminate inter-client interference and increase network capacity.

公开(公告)号：US10349417B2

公开(公告)日：2019-07-09

申请号：US15057002

申请日：2016-02-29

申请人： REARDEN, LLC

发明人： Antonio Forenza ,  Stephen G. Perlman

IPC分类号： H04B7/01 ,  H04W72/04 ,  H04B7/024 ,  H04W28/02 ,  H04W72/08 ,  H04W72/12 ,  H04B7/06 ,  H04B7/0452 ,  H04B7/10 ,  H04W88/08

摘要： A system and methods are described which compensate for the adverse effect of Doppler on the performance of DIDO systems. One embodiment of such a system employs different selection algorithms to adaptively adjust the active BTSs to different UEs based by tracking the changing channel conditions. Another embodiment utilizes channel prediction to estimate the future CSI or DIDO precoding weights, thereby eliminating errors due to outdated CSI.

公开(公告)号：US10333604B2

公开(公告)日：2019-06-25

申请号：US15201276

申请日：2016-07-01

申请人： REARDEN, LLC

发明人： Antonio Forenza ,  Stephen G. Perlman

IPC分类号： H04B7/24 ,  H04B7/06 ,  H04L25/03 ,  H04L5/00 ,  H04B7/022 ,  H04B7/0452 ,  H04W24/02 ,  H04L1/00 ,  H04L25/02 ,  H04B7/10

摘要： A system and method are described for distributed antenna wireless communications. For example, a method implemented within a wireless transmission system comprised of a plurality of wireless client devices and a plurality of distributed antennas is described comprising: computing channel state information (CSI) for wireless communication channels between the plurality of base distributed antennas and the wireless client devices; computing precoding weights from the channel state information; precoding data using the precoding weights prior to wireless transmission from the plurality of distributed antennas to the wireless client devices; and wirelessly transmitting the precoded data from the distributed antennas to each of the wireless client devices, wherein the precoding causes radio frequency interference between the plurality of base stations but simultaneously generating a plurality of non-interfering radio frequency user channels between the plurality of distributed antennas and the plurality of wireless client devices.

公开(公告)号：US10187133B2

公开(公告)日：2019-01-22

申请号：US12802958

申请日：2010-06-16

申请人： Antonio Forenza ,  Stephen G. Perlman

发明人： Antonio Forenza ,  Stephen G. Perlman

IPC分类号： H04B7/02 ,  H04L1/02 ,  H04B7/06

摘要： A system and machine-implemented method are described for adjusting communication with a first distributed-input-distributed-output (DIDO) client. For example, a method according to one embodiment of the invention comprises: applying DIDO weights to one or more data streams to generate one or more DIDO precoded data streams; receiving input channel quality information (CQI) and/or channel state information (CSI) related to DIDO communication channels over which the DIDO precoded data streams are to be transmitted; determining a power scaling factor based on the CQI and/or CSI; and applying the power scaling factor to each of the DIDO precoded data streams.