公开(公告)号：US09148208B2

公开(公告)日：2015-09-29

申请号：US14486029

申请日：2014-09-15

Applicant: Intel IP Corporation

Inventor： Yuan Zhu ,  Xiaogang Chen ,  Fangze Tu ,  Qinghua Li ,  Hooman Shirani-Mehr

IPC: H04B7/02 ,  H04B7/04 ,  H04L25/02 ,  H04W72/04

CPC classification number: H04L25/0248 ,  H04B7/0469 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0665 ,  H04L25/0204 ,  H04L25/021 ,  H04L25/0224

Abstract: Embodiments of a system and method for beamforming in a Wireless Network are generally described herein. In some embodiments, an enhanced Node B (eNB) transmits to User Equipment (UE), from a plurality (Nc) of antenna ports of a plurality (Nt) of transmit antennas, a data signal where signal power is allocated in eigen beams, each of the Nt transmit antennas having antenna ports that are adjustable in elevation and in azimuth. The eNB also determines and transmits to the UE a Pc set of the largest principal eigen beams of the data signal and receives, as feedback from the UE, a precoding matrix that identifies the antenna port from which strongest energy in the data signal is detected at the UE. The eNB uses the precoding matrix for beamforming.

Abstract translation: 本文中通常描述用于无线网络中的波束成形的系统和方法的实施例。 在一些实施例中，增强型节点B（eNB）从多个（Nt）发射天线的多个（Nc）天线端口向用户设备（UE）发送信号功率在本征波束中分配的数据信号， Nt个发射天线中的每一个具有可在仰角和方位上调节的天线端口。 eNB还确定并向UE发送数据信号的最大主要特征波束的Pc集合，并接收来自UE的反馈，该预编码矩阵识别从该数据信号中最强的能量被检测到的天线端口 UE。 eNB使用预编码矩阵进行波束成形。

公开(公告)号：US20150264638A1

公开(公告)日：2015-09-17

申请号：US14583281

申请日：2014-12-26

Applicant: Intel IP Corporation

Inventor： Seunghee Han ,  Xiaogang Chen ,  Alexei Davydov

IPC: H04W48/16 ,  H04W56/00 ,  H04L5/00

CPC classification number: H04W48/16 ,  H04L5/0048 ,  H04L5/1469 ,  H04W56/00

Abstract: Embodiments allow selection of a Discovery signal (DS) used to identify an eNB to a UE receiving the DS. The DS allows the UE to ascertain the existence and/or cell identifier of the eNB. DS comprise a plurality of other signals such as a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), a Cell Specific Reference Signal (CRS) and/or a Channel State Information Reference Signal (CSI-RS). A DS occasion comprises a number of subframes where the selected signals that comprise the DS are transmitted. The signals selected for the DS, their characteristics and properties allow a UE to decode the cell identifier. The DS occasion occurs with a designated periodicity.

Abstract translation: 实施例允许选择用于向接收DS的UE识别eNB的发现信号（DS）。 DS允许UE确定eNB的存在和/或小区标识。 DS包括多个其他信号，例如主同步信号（PSS），辅同步信号（SSS），小区特定参考信号（CRS）和/或信道状态信息参考信号（CSI-RS）。 DS场合包括多个子帧，其中发送包括DS的所选择的信号。 为DS选择的信号，其特征和属性允许UE解码小区标识符。 DS场合以指定的周期发生。

公开(公告)号：US20210368350A1

公开(公告)日：2021-11-25

申请号：US16646319

申请日：2017-12-20

Applicant: Intel IP Corporation

Inventor： Laurent Cariou ,  Xiaogang Chen ,  Feng Jiang ,  Qinghua Li

IPC: H04W16/14

Abstract: Methods, apparatus, and computer-readable media are described for notching a 6 GHz channel. A station associates with an access point on a 6 GHz band. A notching pattern indication is decoded from data received from the AP after associating with the AP. A notching region within a channel within the 6 GHz band is determined based on the notching pattern indication. The notching pattern indicates a width of a notching region and a location of the notching region within the channel. The notching region covers bandwidth occupied by an incumbent system within the channel. A physical layer convergence procedure (PLCP) protocol data unit (PPDU) is encoded for transmission on the channel to the AP. The PPDU is encoded to exclude transmission within the notching region.

公开(公告)号：US20210211326A1

公开(公告)日：2021-07-08

申请号：US17210364

申请日：2021-03-23

Applicant: Intel IP Corporation

Inventor： Feng Jiang ,  Robert Stacey ,  Jonathan Segev ,  Qinghua Li ,  Xiaogang Chen

IPC: H04L25/02 ,  H04W24/10 ,  H04W74/08 ,  H04L5/00

Abstract: This disclosure describes systems, methods, and devices related to a trigger-based null data packet (NDP) for channel sounding system. A device may send a trigger frame to a group of station devices, the group of station devices including a first station device, the trigger frame indicating a high efficiency (HE) long training field (HE-LTF) mode and a guard interval duration. The device may identify a HE trigger-based (TB) null data packet (NDP) received from the first station device, the HE TB NDP including a first packet extension field, wherein the HE TB NDP is associated with the HE-LTF mode and the guard interval duration indicated in the trigger frame. The device may send a downlink NDP including a second packet extension field, a second HE-LTF mode, and a second guard interval duration. The device may determine channel state information based on HE TB NDP received from the first station device.

公开(公告)号：US10979250B2

公开(公告)日：2021-04-13

申请号：US16513385

申请日：2019-07-16

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Chittabrata Ghosh ,  Robert J. Stacey ,  Xiaogang Chen ,  Po-Kai Huang

IPC: H04L25/02 ,  H04W52/14 ,  H04L5/00 ,  H04W52/24 ,  H04W72/08 ,  H04W72/04

Abstract: Computing readable media, apparatuses, and methods for signaling for uplink sounding are disclosed. An apparatus is disclosed comprising processing circuitry. The processing circuitry may be configured to: decode a trigger frame comprising a resource unit (RU) allocation, and a spatial stream (SS) allocation for the first wireless device to transmit an uplink (UL) sounding signal, where the trigger frame include an indication that the trigger frame is for the UL sounding signal. The processing circuitry may be further configured to: determine a path loss based on the indication of the transmit power and a received power of the trigger frame at the first wireless device. The processing circuitry may be configured to: determine a transmit power for the UL sounding signal based on the path loss; and transmit the UL sounding signal in accordance with the RU allocation, the SS allocation, and the transmit power.

公开(公告)号：US10979169B2

公开(公告)日：2021-04-13

申请号：US16382531

申请日：2019-04-12

Applicant: Intel IP Corporation

Inventor： Po-Kai Huang ,  Feng Jiang ,  Xiaogang Chen ,  Qinghua Li ,  Robert J. Stacey ,  Laurent Cariou

IPC: H04L1/00 ,  H04W40/24 ,  H04W80/02 ,  H04W72/04 ,  H04W84/12

Abstract: Methods, apparatuses, and computer readable media for high efficiency (HE) beacon and HE formats in a wireless network are disclosed. An apparatus of a high efficiency (HE) access point (AP), where the apparatus comprises processing circuitry configured select a tuple from the basic HE-MCS set of tuples, if a basic HE modulation and control scheme (MCS)(HE-MCS) and a number of spatial streams (NSS) set of tuples is not empty, and otherwise select the tuple from a mandatory HE-MCS and NSS set of tuples. The processing circuitry may be further configured to encode a beacon frame in a HE single user (SU) physical layer (PHY) protocol data unit (PPDU), in accordance with the selected tuple, and configure the HE AP to transmit the HE SU PPDU. Null data packets formats, methods, computer readable media, and apparatuses are disclosed for multiple 20 MHz operations.

公开(公告)号：US10727914B2

公开(公告)日：2020-07-28

申请号：US16031438

申请日：2018-07-10

Applicant: Intel IP Corporation

Inventor： Yuan Zhu ,  Qinghua Li ,  Xiaogang Chen ,  Jong-Kae Fwu

IPC: H04B7/0456 ,  H04L5/00 ,  H04B7/0417 ,  H04B7/06 ,  H04B7/0452 ,  H04W84/04

Abstract: Various embodiments include an apparatus to be employed by an enhanced Node B (eNB), the apparatus comprising communication circuitry to receive, from a user equipment (UE), feedback information and control circuitry, coupled with the communication circuitry, to identify a codeword from a three-dimensional codebook based on the feedback information received from the UE, wherein the communication circuitry is further to precode data to be transmitted to the UE based on the codeword. An apparatus to be employed by a UE and additional methods are described.

公开(公告)号：US20200162963A1

公开(公告)日：2020-05-21

申请号：US16630113

申请日：2018-06-27

Applicant: Yaron ALPERT ,  Laurent CARIOU ,  Po-Kai HUANG ,  Xiaogang CHEN ,  Arik KLEIN ,  Danny BEN-ARI ,  Robert J. STACEY ,  Intel Corporation and Intel IP Corporation

Inventor： Yaron Alpert ,  Laurent Cariou ,  Po-Kai Huang ,  Xiaogang Chen ,  Arik Klein ,  Danny Ben-Ari ,  Robert J. Stacey

IPC: H04W28/06 ,  H04L1/00

Abstract: Methods, computer readable media, and apparatus for determining a receive (Rx) number of spatial streams (NSS) for different bandwidths (BWs) and modulation and control schemes (MCSs) are disclosed. An apparatus is disclosed comprising processing circuitry configured to decode a supported HE-MCS and a NSS set field, the supported HE-MSC and NSS set field received from an high-efficiency (HE) station. The processing circuitry may be further configured to determine a first maximum value of N receive (Rx) SS for a MCS and a bandwidth (BW), where the first maximum value of N Rx SS is equal to a largest number of Rx SS that supports the MCS for the BW as indicated by the supported HE-MCS and NSS set field; and, determine additional maximum values based on an operating mode (OM) notification frame, and a value of an OM control (OMC) field. Signaling for BW in 6 GHz is disclosed.

公开(公告)号：US10602501B2

公开(公告)日：2020-03-24

申请号：US15957584

申请日：2018-04-19

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Xiaogang Chen ,  Robert Stacey ,  Chittabrata Ghosh ,  Yuan Zhu ,  Rongzhen Yang

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04B7/0413 ,  H04W84/12

Abstract: Methods, devices and systems for jointly encoding allocation information of one or more wireless communication stations in a common portion of a physical layer header are disclosed. In some examples, a wireless device may: generate allocation information associated with one or more wireless communication stations; encode the allocation information into the common portion of the physical layer header; and transmit the physical layer header to the one or more wireless communication stations.

公开(公告)号：US10574411B2

公开(公告)日：2020-02-25

申请号：US15910761

申请日：2018-03-02

Applicant: Intel IP Corporation

Inventor： Xiaogang Chen ,  Qinghua Li ,  Yuan Zhu ,  Rongzhen Yang ,  Hujun Yin

IPC: H04L5/00

Abstract: This disclosure describes methods, apparatus, and systems related to a high efficiency signal field encoding structure. A device may determine a communications channel having a bandwidth of a frequency band. The device may determine a first group of subchannels of the bandwidth and a second group of subchannels of the bandwidth. The device may determine a high efficiency signal field to be transmitted on the communications channel to a first device. The device may encode the high efficiency signal field using the first group of subchannels and the second group of subchannels. The device may cause to send the high efficiency signal field to the first device.