公开(公告)号：US20220294507A1

公开(公告)日：2022-09-15

申请号：US17639678

申请日：2019-09-20

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Pål FRENGER ,  Emil BJÖRNSON ,  Erik G. LARSSON

IPC: H04B7/06 ,  H04B7/0495 ,  H01Q3/40

Abstract: An antenna system includes at least a first antenna processing unit, APU1, and a second antenna processing unit, APU2, adjacently connected to each other through a serialized front haul. Each one of the APU1 and APU2 has at least two antenna elements. The antenna elements of APU1 are connected to their respective Radio Frequency, RF, chains via a first beamforming unit, and the antenna elements of APU2 are connected to their respective RF chains via a second beamforming unit. A network node configures the first beamforming unit and the second beamforming unit such that an absolute value of an angular difference between at least one of the beam directions generated by the first beamforming unit and each of the beam directions generated by the second beamforming unit exceeds or is equal to a threshold value.

公开(公告)号：US11108443B2

公开(公告)日：2021-08-31

申请号：US16420133

申请日：2019-05-22

Applicant: Woodbury Wireless LLC

Inventor： Roc Lastinger ,  John Spenik ,  Brian C Woodbury

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/0495 ,  H04B7/024 ,  H04B7/0413 ,  H04B17/15

Abstract: A system, method, and computer program product is provided to select at least one channel based on one or more channel characteristics and initiate a first transmission to a first multiple-input-multiple-output (MIMO)-capable portable wireless device, and further initiate a second transmission to a second multiple-input-multiple-output (MIMO)-capable portable wireless device, such that at least a portion of the first transmission occurs simultaneously with at least a portion of the second transmission and both occur via a first wireless protocol; and is further configured to initiate a third transmission to a third multiple-input-multiple-output (MIMO)-capable portable wireless device via a second wireless protocol including a 802.11n protocol, where the first wireless protocol includes another 802.11 protocol other than the 802.11n protocol.

公开(公告)号：US10516451B2

公开(公告)日：2019-12-24

申请号：US16243421

申请日：2019-01-09

Applicant: Woodbury Wireless LLC

Inventor： Roc Lastinger ,  John Spenik ,  Brian C Woodbury

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/0495 ,  H04B7/024 ,  H04B7/0413 ,  H04B17/15

Abstract: A system, method, and computer program product is provided to select at least one channel based on one or more channel characteristics and initiate a first transmission to a first multiple-input-multiple-output (MIMO)-capable portable wireless device, and further initiate a second transmission to a second multiple-input-multiple-output (MIMO)-capable portable wireless device, such that at least a portion of the first transmission occurs simultaneously with at least a portion of the second transmission and both occur via a first wireless protocol; and is further configured to initiate a third transmission to a third multiple-input-multiple-output (MIMO)-capable portable wireless device via a second wireless protocol including a 802.11n protocol, where the first wireless protocol includes another 802.11 protocol other than the 802.11n protocol.

公开(公告)号：US20180375553A1

公开(公告)日：2018-12-27

申请号：US16120258

申请日：2018-09-01

Applicant: Woodbury Wireless LLC

Inventor： Roc Lastinger ,  John Spenik ,  Brian C. Woodbury

IPC: H04B7/0456 ,  H04B17/15 ,  H04B7/0495 ,  H04B7/024 ,  H04B7/0413

Abstract: A system, method, and computer program product is provided to select at least one channel based on one or more channel characteristics and initiate a first transmission to a first multiple-input-multiple-output (MIMO)-capable portable wireless device, and further initiate a second transmission to a second multiple-input-multiple-output (MIMO)-capable portable wireless device, such that at least a portion of the first transmission occurs simultaneously with at least a portion of the second transmission and both occur via a first wireless protocol; and is further configured to initiate a third transmission to a third multiple-input-multiple-output (MIMO)-capable portable wireless device via a second wireless protocol including a 802.11n protocol, where the first wireless protocol includes another 802.11 protocol other than the 802.11n protocol.

公开(公告)号：US09859963B2

公开(公告)日：2018-01-02

申请号：US15406661

申请日：2017-01-13

Applicant: Woodbury Wireless LLC

Inventor： Roc Lastinger ,  John Spenik ,  Brian C. Woodbury

IPC: H04B7/06 ,  H04B7/0456 ,  H04B7/024 ,  H04B7/0495 ,  H04B17/15

CPC classification number: H04B7/0456 ,  H04B7/024 ,  H04B7/0413 ,  H04B7/0495 ,  H04B17/15

Abstract: A system is provided comprising: a first wireless part with a multiple-input-multiple-output (MIMO) capability; a second wireless part with a multiple-input-multiple-output (MIMO) capability; and circuitry in communication with the first wireless part with the multiple-input-multiple-output (MIMO) capability and the second wireless part with the multiple-input-multiple-output (MIMO) capability. The system is configured such that the first wireless part with the multiple-input-multiple-output (MIMO) capability selects a channel based on one or more channel characteristics and initiates a first transmission to a first multiple-input-multiple-output (MIMO)-capable portable wireless device via the first wireless protocol, and further initiates a second transmission to a second multiple-input-multiple-output (MIMO)-capable portable wireless device.

公开(公告)号：US09692493B2

公开(公告)日：2017-06-27

申请号：US15051273

申请日：2016-02-23

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Sairamesh Nammi ,  Qingyu Miao ,  Peter Von Wrycza

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/024 ,  H04B7/0495 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04B7/046 ,  H04B7/024 ,  H04B7/0486 ,  H04B7/0495 ,  H04B7/0639 ,  H04B7/0857

Abstract: Methods may be provided to operate wireless terminal in wireless communication networks providing multiple-input-multiple-output (MIMO) downlink communications from a plurality of base station sector antenna arrays using a codebook of precoding vectors. Such methods may include receiving multi-point MIMO downlink communications from the wireless communication network. When receiving the multi-point MIMO downlink communications from the wireless communication network, a precoding vector may be selected from a subset of the precoding vectors of the codebook for the multi-point MIMO downlink communications.

公开(公告)号：US20170180032A1

公开(公告)日：2017-06-22

申请号：US15408432

申请日：2017-01-18

Applicant: ISTANBUL TEKNIK UNIVERSITESI REKTORLUGU

Inventor： Ertugrul BASAR

IPC: H04B7/08 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/0495 ,  H04B7/0452

CPC classification number: H04B7/0854 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0495 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0671 ,  H04B7/0894 ,  H04L27/2601 ,  H04L27/2697

Abstract: A communication system for the next generation wireless communications technology standards. The communication system architecture is created by the combination of the index modulation technique and the multiple input, multiple output orthogonal frequency division multiplexing which eliminates the need to utilize complex equalizers by parsing high speed data strings and transmitting them over multiple orthogonal subcarriers, and allows the bits to be transmitted via active subcarrier indices. The OFDM-IM and multiple input multiple output communication techniques are used in tandem. The communication system can be used in future generation mobile communication systems and standards (5G and beyond), Local Area Network system and standards, terrestrial digital TV system and standards, multi-carrier communication systems and broadband digital communication systems.

公开(公告)号：US11870516B2

公开(公告)日：2024-01-09

申请号：US17453160

申请日：2021-11-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ahmed Atef Ibrahim Ibrahim ,  Jianzhong Zhang

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0495

CPC classification number: H04B7/0456 ,  H04B7/0495 ,  H04B7/0639

Abstract: A base station includes a plurality of antennas, a data unit (DU) comprising a first processor and a first memory containing instructions, which when executed by the first processor, cause the DU to receive a signal to be transmitted via the plurality of antennas, obtain per-antenna-power-constraint (PAPC) information, determine an estimated effective transmission power (Peff) based on the PAPC information, and pre-schedule the signal for transmission based on the Peff. The base station further includes a massive MIMO unit (MMU) comprising a second processor and a second memory containing instructions, which when executed by the second processor, cause the MMU to receive, from the DU, the pre-scheduled signal, perform pre-coding on the pre-scheduled signal based on a current value of a PAPC determined at the MMU to normalize per-antenna gain of antennas of the plurality of antennas, and provide the pre-coded signal for transmission via the plurality of antennas.

公开(公告)号：US20230361849A1

公开(公告)日：2023-11-09

申请号：US18311353

申请日：2023-05-03

Applicant: NEC Laboratories America, Inc.

Inventor： Mohammad Khojastepour ,  Nariman Torkzaban

IPC: H04B7/06 ,  H04B7/0426 ,  H04B7/0495

CPC classification number: H04B7/06958 ,  H04B7/0639 ,  H04B7/0447 ,  H04B7/0495

Abstract: Beamforming methods and systems include determining a tradeoff curve between scanning beamwidth and transmission beamwidth based on a channel distribution for a base station. A set of scanning beams is selected based on the tradeoff curve. Devices around the base station are scanned for using the set of scanning beams. A set of transmission beams is selected for communications with the devices based on information received during the scanning. The set of transmission beams are used for transmission with a beamforming transmitter.

公开(公告)号：US11777573B2

公开(公告)日：2023-10-03

申请号：US17639678

申请日：2019-09-20

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Pål Frenger ,  Emil Björnson ,  Erik G. Larsson

IPC: H04B7/06 ,  H01Q3/40 ,  H04B7/0495

CPC classification number: H04B7/0617 ,  H01Q3/40 ,  H04B7/0495

Abstract: An antenna system includes at least a first antenna processing unit, APU1, and a second antenna processing unit, APU2, adjacently connected to each other through a serialized front haul. Each one of the APU1 and APU2 has at least two antenna elements. The antenna elements of APU1 are connected to their respective Radio Frequency, RF, chains via a first beamforming unit, and the antenna elements of APU2 are connected to their respective RF chains via a second beamforming unit. A network node configures the first beamforming unit and the second beamforming unit such that an absolute value of an angular difference between at least one of the beam directions generated by the first beamforming unit and each of the beam directions generated by the second beamforming unit exceeds or is equal to a threshold value.