公开(公告)号：US20190074913A1

公开(公告)日：2019-03-07

申请号：US16077479

申请日：2017-02-17

Applicant: Ping LIANG

Inventor： Ping Liang ,  Jason Brent ,  Dengkui Zhu

IPC: H04B17/00 ,  H04B7/0452 ,  H04B17/391

CPC classification number: H04B17/0087 ,  H04B7/0452 ,  H04B17/0085 ,  H04B17/3912

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.

公开(公告)号：US10708012B1

公开(公告)日：2020-07-07

申请号：US16271808

申请日：2019-02-09

Applicant: Jason Brent ,  Dengkui Zhu ,  Ping Liang

Inventor： Jason Brent ,  Dengkui Zhu ,  Ping Liang

IPC: H04L27/26 ,  H04J11/00 ,  H04B7/024 ,  H04L5/00 ,  H04W72/04

Abstract: This invention discloses methods and circuits of wideband wireless transmitting and/or receiving by combining multiple RF transmitters and/or receivers, or multiple transceivers, each of which has a narrower bandwidth, e.g., producing a RF transmitter and receiver or a RF transceiver whose signal bandwidth is the sum or approximately the sum, e.g., slightly less than the sum, of the signal bandwidth of the multiple RF transmitters and/or receivers, or multiple RF transceivers. The embodiments apply in wireless communication systems with orthogonal or approximately orthogonal subcarrier type of modulation (OSM), e.g., Orthogonal Frequency Division Multiplexing (OFDM).

公开(公告)号：US10454594B2

公开(公告)日：2019-10-22

申请号：US16077479

申请日：2017-02-17

Applicant: Ping Liang

Inventor： Ping Liang ,  Jason Brent ,  Dengkui Zhu

IPC: H04B17/00 ,  H04B7/0452 ,  H04B17/391

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.

公开(公告)号：US11695517B2

公开(公告)日：2023-07-04

申请号：US17169451

申请日：2021-02-06

Applicant: Dengkui Zhu ,  Jason Brent ,  Boyu Li ,  Ping Liang

Inventor： Dengkui Zhu ,  Jason Brent ,  Boyu Li ,  Ping Liang

IPC: H04L1/00 ,  H04L1/1812 ,  H04L1/1867

CPC classification number: H04L1/1819 ,  H04L1/0061 ,  H04L1/1874 ,  H04L1/1896

Abstract: This invention discloses methods to enhance Physical Layer (PHY) processing in a radio access network between a Base Station (BS) and one or more User Equipment (UEs), including enhanced Hybrid Automatic Repeat Request (HARQ) management, transmitting path processing to reduce transfer bandwidth between an offload processor and a CPU, and offload processing to reduce HARQ latency.

公开(公告)号：US10171217B2

公开(公告)日：2019-01-01

申请号：US15537877

申请日：2016-01-16

Applicant: Jason Brent ,  Dengkui Zhu ,  Ping Liang

Inventor： Jason Brent ,  Dengkui Zhu ,  Ping Liang

IPC: H04L5/00 ,  H04B7/04 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06 ,  H04W72/04

Abstract: This invention provides SRS transmission methods to meet the Massive MIMO systems requirements. These methods are described in two separate categories. Firstly, enhancements to multiplex more channels in the same resources for a given SRS transmission and to provide Massive MIMO throughput performance improvements. Secondly, scheduling enhancements to provide adaptive UE-specific scheduling based on channel conditions for each UE. These methods can be combined in different ways in each BS to optimize the channel estimation system capacity for a given level of system performance.

公开(公告)号：US20220255677A1

公开(公告)日：2022-08-11

申请号：US17169451

申请日：2021-02-06

Applicant: Dengkui Zhu ,  Jason Brent ,  Boyu Li ,  Ping Liang

Inventor： Dengkui Zhu ,  Jason Brent ,  Boyu Li ,  Ping Liang

IPC: H04L1/18 ,  H04L1/00

Abstract: This invention discloses methods to enhance Physical Layer (PHY) processing in a radio access network between a Base Station (BS) and one or more User Equipment (UEs), including enhanced Hybrid Automatic Repeat Request (HARQ) management, transmitting path processing to reduce transfer bandwidth between an offload processor and a CPU, and offload processing to reduce HARQ latency.

公开(公告)号：US20180026765A1

公开(公告)日：2018-01-25

申请号：US15537877

申请日：2016-01-16

Applicant: Jason Brent ,  Dengkui Zhu ,  Ping Liang

Inventor： Jason Brent ,  Dengkui Zhu ,  Ping Liang

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/06 ,  H04B7/0452 ,  H04B7/0456

CPC classification number: H04L5/0048 ,  H04B7/04 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0626 ,  H04L5/0007 ,  H04W72/042

Abstract: This invention provides SRS transmission methods to meet the Massive MIMO systems requirements. These methods are described in two separate categories. Firstly, enhancements to multiplex more channels in the same resources for a given SRS transmission and to provide Massive MIMO throughput performance improvements. Secondly, scheduling enhancements to provide adaptive UE-specific scheduling based on channel conditions for each UE. These methods can be combined in different ways in each BS to optimize the channel estimation system capacity for a given level of system performance.