公开(公告)号：US10405211B2

公开(公告)日：2019-09-03

申请号：US14883410

申请日：2015-10-14

Applicant: Intel Corporation

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

IPC: H04W24/04 ,  H04L5/00 ,  H04L12/24 ,  H04L12/26 ,  H04L12/807 ,  H04L29/06 ,  H04L29/08 ,  H04W76/14 ,  H04W4/70 ,  H04W76/10 ,  H04W76/16 ,  H04W76/11 ,  H04W76/15 ,  H04W24/02 ,  H04N21/2343 ,  H04N21/258 ,  H04W16/18 ,  H04W24/10 ,  H04W88/06 ,  H04L12/703 ,  H04B17/27 ,  H04W76/28 ,  H04L1/18 ,  H04W40/20 ,  H04W40/24 ,  H04W48/14 ,  H04L12/725 ,  H04W16/28 ,  H04W36/14 ,  H04W48/18

Abstract: Techniques for facilitating device-to-device (D2D) communications using a high efficiency distributed channel access scheme are generally described herein. In some examples, a communication zone allocated for wireless D2D communications is divided into resource contention and scheduled transmission portions. The resource contention segment may be used to transmit a request message from a transmitting device to a receiving device (a request-to-send message), and transmit a response to the request message from the receiving device to the transmitting device (a clear-to-send message). The response can indicate a time for the data transmission to occur during the scheduled transmission segment. During the scheduled transmission segment, the scheduled data transmission and other D2D data transmissions among the various devices will be performed. In further examples, contention access techniques may be used during the resource contention segment to manage access to the resource channel.

公开(公告)号：US10367551B2

公开(公告)日：2019-07-30

申请号：US14820879

申请日：2015-08-07

Applicant: Intel Corporation

Inventor： Alexei Davydov ,  Yuan Zhu ,  Gregory V. Morozov

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0456

Abstract: A method comprises configuring a transmission mode for a user equipment (UE) based on user equipment specific reference signals (UE-RS) and configuring one or more precoding resource groups; and providing a dynamic indication to indicate which precoding resource group is valid for a physical downlink shared channel.

公开(公告)号：US10212661B2

公开(公告)日：2019-02-19

申请号：US15130875

申请日：2016-04-15

Applicant: Intel Corporation

Inventor： Xiaogang Chen ,  Jong-Kae Fwu ,  Hong He ,  Yuan Zhu

IPC: H04W72/04 ,  H04W72/12 ,  H04B7/04 ,  H04L5/00 ,  H04W52/02 ,  H04W48/16 ,  H04B7/06 ,  H04B7/0456 ,  H04L12/891 ,  H04W52/04 ,  H04W4/08 ,  H04W36/00 ,  H04L12/18 ,  H04W4/06 ,  H04W72/00 ,  H04L12/709 ,  H04W48/18 ,  H04W72/08 ,  H04B7/024 ,  H04B7/0417 ,  H04W52/14 ,  H04W76/34 ,  H04W76/28 ,  H04W76/40 ,  H04W84/04 ,  H04W52/54 ,  H04L25/02 ,  H04W28/10 ,  H04W52/24 ,  H04W52/36 ,  H04W48/12

Abstract: Technology for mapping an enhanced physical downlink control channel to physical resource blocks in a radio frame is disclosed. One method comprises mapping modulated symbols in the ePDCCH to at least one control channel element. The at least one control channel element may be mapped to resource elements located in a plurality of distributed physical resource blocks in a subframe, wherein each resource block is in a distributed resource block group and is separated by at least one additional resource block in the subframe. The mapping may also be to resource elements distributed in a single resource block in the subframe, wherein the control channel element is mapped to be distributed in frequency and time relative to other mapped resource elements in the single resource block and the single resource block belongs to a localized resource block group.

公开(公告)号：US10034195B2

公开(公告)日：2018-07-24

申请号：US15205964

申请日：2016-07-08

Applicant: Intel Corporation

Inventor： Yuan Zhu ,  Xiaogang Chen ,  Huaning Niu ,  Qinghua Li

IPC: H04B3/46 ,  H04W28/02 ,  H04N21/2365 ,  H04N21/643 ,  H04W52/02 ,  H04B7/0456 ,  H04W72/04 ,  H04W48/06 ,  H04L12/803 ,  H04L12/801 ,  H04L29/06 ,  H04L1/18 ,  H04L5/00 ,  H04J11/00 ,  H04L27/26 ,  H04L1/00 ,  H04B7/0413 ,  H04B7/0417 ,  H04W68/00 ,  H04B7/0452 ,  H04W72/12 ,  H04W12/06 ,  H04W12/08 ,  H04W88/02 ,  H04W4/70 ,  H04W88/06 ,  H04W36/14 ,  H04B7/06 ,  H04W84/12 ,  H04W88/10

Abstract: An apparatus may include a transmitter arranged to wirelessly transmit channel status reports for channels within a transmission band to a base station and a processor. The apparatus may further include a rank adaptation (RA) module operable on the processor to direct the transmitter to send a multiplicity of sub-band channel quality indicator (CQI) reports, each sub-band CQI report comprising a measurement of a respective sub-band of the transmission band and a multiplicity of rank indicator (RI) reports, where each sub-band CQI report is accompanied by an RI report. The apparatus may further include a digital display arranged to display information transmitted via the base station to the apparatus. Other embodiments are disclosed and claimed.

公开(公告)号：US20180192407A1

公开(公告)日：2018-07-05

申请号：US15908708

申请日：2018-02-28

Applicant: Intel Corporation

Inventor： Xiaogang Chen ,  Yuan Zhu ,  Qinghua Li

IPC: H04W72/04 ,  H04W8/02 ,  H04W72/12 ,  H04W24/08 ,  H04W52/02 ,  H04W52/14 ,  H04W52/24 ,  H04W88/06 ,  H04W72/02 ,  H04W72/08 ,  H04W76/19 ,  H04W76/28 ,  H04B7/06 ,  H04B15/00 ,  H04L27/34 ,  H04L5/14 ,  H04L5/00 ,  H04L1/06 ,  H04L1/00 ,  H04W24/00 ,  H04L27/36 ,  H04W52/32 ,  H04W84/04

CPC classification number: H04W72/042 ,  H04B7/0697 ,  H04B15/00 ,  H04L1/0025 ,  H04L1/0038 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/06 ,  H04L5/0037 ,  H04L5/14 ,  H04L27/34 ,  H04L27/362 ,  H04W4/70 ,  H04W8/02 ,  H04W24/00 ,  H04W24/08 ,  H04W52/0209 ,  H04W52/0212 ,  H04W52/0251 ,  H04W52/0258 ,  H04W52/143 ,  H04W52/242 ,  H04W52/244 ,  H04W52/325 ,  H04W72/02 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/082 ,  H04W72/1215 ,  H04W72/1278 ,  H04W76/19 ,  H04W76/28 ,  H04W84/042 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/444

Abstract: Technology for an enhanced Node B (eNB) operable to map an enhanced physical downlink control channel (ePDCCH) to physical resource blocks in a radio frame is described. The eNB can map modulated symbols in the ePDCCH to at least one control channel element (CCE). The eNB can map the at least one CCE to resource elements located in a plurality of distributed physical resource blocks in a subframe in the radio frame. The eNB can apply the mapping to control data for scheduling to form the ePDCCH. The eNB can process the ePDCCH for transmission to a user equipment (UE).

公开(公告)号：US09843367B2

公开(公告)日：2017-12-12

申请号：US15373366

申请日：2016-12-08

Applicant: Intel Corporation

Inventor： Yuan Zhu ,  Qinghua Li ,  Xiaogang Chen

IPC: H04B7/04 ,  H04B7/06 ,  H04W24/10 ,  H04W72/06 ,  H04B7/0456 ,  H04B7/0452

CPC classification number: H04B7/0456 ,  H04B7/024 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0482 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0652 ,  H04L1/009 ,  H04L1/20 ,  H04L5/0048 ,  H04L2001/0093 ,  H04L2001/0097 ,  H04W24/10 ,  H04W40/24 ,  H04W52/0209 ,  H04W52/146 ,  H04W52/34 ,  H04W52/365 ,  H04W72/042 ,  H04W72/0473 ,  H04W72/06 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/444

Abstract: Embodiments of an enhanced Node B (eNB) and method for precoding with reduced quantization error are generally described herein. In some embodiments, first and second precoding-matrix indicator (PMI) reports may be received on an uplink channel and a single subband precoder matrix may be interpolated from precoding matrices indicated by both the PMI reports. Symbols for multiple-input multiple output (MIMO) beamforming may be precoded using the interpolated precoder matrix computed for single subband for a multiple user (MU)-MIMO downlink orthogonal frequency division multiple access (OFDMA) transmission. In some embodiments, each of the first and second PMI reports includes a PMI associated with a same subband that jointly describes a recommended precoder.

公开(公告)号：US20170338899A1

公开(公告)日：2017-11-23

申请号：US15485789

申请日：2017-04-12

Applicant: INTEL CORPORATION

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

IPC: H04B15/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04B15/00 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2695

Abstract: Example systems, methods, and devices for mitigating interference in wireless networks are discussed. One example method includes the operations of passing channel frequency offsets of a plurality of LTF symbols on a plurality of subcarriers through a high pass frequency band, encoding the plurality of LTF symbols with a plurality of LTF sequences across frequency, and encoding the LTF symbols in time and/or frequency. Another example includes the operations of receiving a plurality of LTF symbols on a plurality of subcarriers for channel estimation of one or more streams, removing the encoding across time, removing the encoding across frequency, and removing the LTF sequence(s), and passing the modified LTF symbols through a smoothing filter, for example, a low pass filter for removing the interference due to CFOs. Methods, apparatus, and systems described herein can be applied to 802.11ax or any other wireless standard.

公开(公告)号：US09814037B2

公开(公告)日：2017-11-07

申请号：US14109211

申请日：2013-12-17

Applicant: Intel Corporation

Inventor： Feng Xue ,  Qinghua Li ,  Yuan Zhu

IPC: H04B7/00 ,  H04W72/04 ,  H04W76/02 ,  H04B7/0452 ,  H04B7/06 ,  H04W56/00 ,  H04W72/02 ,  H04L25/02 ,  H04L25/03 ,  H04W88/02 ,  H04W16/14 ,  H04W8/00 ,  H04W48/16 ,  H04L12/18 ,  H04W74/00 ,  H04W74/08 ,  H04W36/02 ,  H04W68/04 ,  H04W76/06 ,  H04B7/024 ,  H04J11/00 ,  H04L5/14 ,  H04W84/18 ,  H04W88/06 ,  H04W84/04 ,  H04W48/12

CPC classification number: H04W72/0446 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0626 ,  H04J11/005 ,  H04L5/1469 ,  H04L12/18 ,  H04L25/021 ,  H04L25/0242 ,  H04L25/03891 ,  H04W8/005 ,  H04W16/14 ,  H04W24/10 ,  H04W36/02 ,  H04W48/12 ,  H04W48/16 ,  H04W56/0005 ,  H04W68/04 ,  H04W72/02 ,  H04W72/0406 ,  H04W72/042 ,  H04W74/004 ,  H04W74/006 ,  H04W74/0816 ,  H04W76/10 ,  H04W76/19 ,  H04W76/30 ,  H04W84/045 ,  H04W84/18 ,  H04W88/02 ,  H04W88/06

Abstract: A method for selecting at least one parameter for downlink data transmission with a mobile user equipment. The method is executable by a wireless communication base station having multiple antennas configured to communicate wirelessly with the mobile user equipment. The method receives an uplink probing signal from the mobile user equipment. The method determines a plurality of angles of arrival for a corresponding plurality of paths between the mobile user equipment and the multiple antennas. The method transmits a plurality of downlink probing signals directionally toward corresponding angles of arrival in the plurality of angles of arrival. Each downlink probing signal is a virtual antenna port with respect to the mobile user equipment. The method receives channel state information. The method composes at least one of a rank indicator (RI), precoding matrix indicator (PMI), or modulating and coding scheme (MCS) for downlink data transmission to the mobile user equipment.

公开(公告)号：US09698889B2

公开(公告)日：2017-07-04

申请号：US14494857

申请日：2014-09-24

Applicant: INTEL CORPORATION

Inventor： Feng Xue ,  Yuan Zhu ,  Hooman Shirani-Mehr ,  Roya Doostnejad ,  Qinghua Li ,  Masoud Sajadieh

IPC: H04W72/12 ,  H04B7/06 ,  H04B7/08 ,  H04B7/04 ,  H04B7/0452 ,  H04L1/06

CPC classification number: H04B7/0639 ,  H04B7/0452 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/06

Abstract: A technology that is operable to schedule data transfer for a multiple user multiple-input and multiple-output (MU-MIMO) communications network is disclosed. In one embodiment, an enhanced node B (eNode B) is configured with circuitry configured to receive a sounding signal from each of a plurality of user equipment (UEs). One or more major paths of the sounding signals from each of the plurality of UEs are determined. An angle of arrival (AoA) is determined that is associated with each of the one or more major paths. The plurality of UEs are grouped into one or more candidate MU-MIMO sets using the AoAs associated with each of the one or more major paths. Data transmissions are scheduled for one or more of the candidate UEs of the candidate MU-MIMO set on one or more of the major paths of each of the candidate UEs.

公开(公告)号：US20170155435A1

公开(公告)日：2017-06-01

申请号：US15373366

申请日：2016-12-08

Applicant: Intel Corporation

Inventor： Yuan Zhu ,  Qinghua Li ,  Xiaogang Chen

IPC: H04B7/0456 ,  H04B7/06 ,  H04W72/06 ,  H04W24/10

CPC classification number: H04B7/0456 ,  H04B7/024 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0482 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0652 ,  H04L1/009 ,  H04L1/20 ,  H04L5/0048 ,  H04L2001/0093 ,  H04L2001/0097 ,  H04W24/10 ,  H04W40/24 ,  H04W52/0209 ,  H04W52/146 ,  H04W52/34 ,  H04W52/365 ,  H04W72/042 ,  H04W72/0473 ,  H04W72/06 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/444

Abstract: Embodiments of an enhanced Node B (eNB) and method for precoding with reduced quantization error are generally described herein. In some embodiments, first and second precoding-matrix indicator (PMI) reports may be received on an uplink channel and a single subband precoder matrix may be interpolated from precoding matrices indicated by both the PMI reports. Symbols for multiple-input multiple output (MIMO) beamforming may be precoded using the interpolated precoder matrix computed for single subband for a multiple user (MU)-MIMO downlink orthogonal frequency division multiple access (OFDMA) transmission. In some embodiments, each of the first and second PMI reports includes a PMI associated with a same subband that jointly describes a recommended precoder.