公开(公告)号：US20200119890A1

公开(公告)日：2020-04-16

申请号：US16303182

申请日：2016-06-22

Applicant: Intel Corporation

Inventor： Shu-Ping YEH ,  Jingwen BAI ,  Sung-En CHIU ,  Ping WANG ,  Feng XUE ,  Yang-Seok CHOI ,  Shilpa TALWAR

IPC: H04L5/00 ,  H04L5/14 ,  H04W72/12

Abstract: A communication device and a method for determining an information from a second device including setting an initial beamforming pattern is provided. The initial beamforming pattern includes a beamforming direction and a corresponding beamforming area for each of the plurality of antenna ports, including determining a concerned direction interval based on overlapping beamforming areas of adjacent pairs of the plurality of antenna ports, receiving a signal from the second device, measuring a signal gain from the signal on each of the plurality of antenna ports, determining which concerned direction interval the second device occupies based on an antenna port having the highest signal gain and on one of the adjacent pair of antenna ports to the antenna port having the highest signal gain having a higher signal gain, and determining the information from the second device based on the determined concerned direction interval.

公开(公告)号：US20190229884A1

公开(公告)日：2019-07-25

申请号：US16327386

申请日：2016-09-29

Applicant: Intel Corporation

Inventor： Feng XUE ,  Yang-Seok CHOI ,  Daniel SCHWARTZ ,  Shu-Ping YEH ,  Namyoon LEE ,  Venkatesan NALLAMPATTI EKAMBARAM ,  Ching-En LEE ,  Chia-Hsiang CHEN

IPC: H04L5/14 ,  H04B1/48 ,  H04B7/0413 ,  H04B15/00

Abstract: A communication circuit arrangement includes a first kernel dimension filter circuit configured to apply a first kernel dimension filter to a first input signal to estimate a first kernel dimension interference signal from a first amplifier, a second kernel dimension filter circuit configured to apply a second kernel dimension filter to a second input signal to estimate a second kernel dimension interference signal from a second amplifier, a joint delay tap dimension filter configured to apply a joint delay tap dimension filter to a combination of the first kernel dimension interference signal and the second kernel dimension interference signal to obtain an estimated joint interference signal, and a cancelation circuit configured to remove the estimated joint interference signal from a received signal to obtain a clean signal.

公开(公告)号：US20180184409A1

公开(公告)日：2018-06-28

申请号：US15389839

申请日：2016-12-23

Applicant: INTEL CORPORATION

Inventor： Alexander W. MIN ,  Minyoung PARK ,  Shu-Ping YEH ,  Ping WANG

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04L5/0007 ,  H04L1/0003 ,  H04L1/0031 ,  H04W72/1205 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/166

Abstract: The 802.11ax Trigger Frame conveys information for solicited MU UL OFDM(A) transmission information. A full-duplex-capable AP can initiate another DL frame transmission(s) during the UL transmission. However, non-UL-solicited STAs may enter a low-power sleep state right after a Trigger Frame reception, and thus cannot receive the full-duplex DL transmission from the AP. Therefore, to enable OFDMA-based full-duplex communication, the AP needs to explicitly announce both scheduled UL and DL transmission(s) in the Trigger Frame.

公开(公告)号：US20180176954A1

公开(公告)日：2018-06-21

申请号：US15380076

申请日：2016-12-15

Applicant: INTEL CORPORATION

Inventor： Sarabjot SINGH ,  Shu-Ping YEH ,  Alexander W. MIN

IPC: H04W74/08

CPC classification number: H04W74/0816 ,  H04W84/12

Abstract: Access to unlicensed bands is typically preceded by a LBT or CCA mechanism, through which the transmitter determines the presence of ongoing transmissions in the same channel. Specifically, an AP or STA (prior to transmitting) senses the channel, and transmits only if the channel is adjudged to be idle. As mandated by the current IEEE 802.11 standard, the energy detected in the channel is compared with a predefined CCA threshold (signal detect threshold is −82 dBm and energy threshold is −62 dBm for 20 MHz OFDM transmission). This creates an RF-energy based guard zone around each transmitter and hence prevents any other transmitter from reusing the medium. To fully leverage simultaneous transmit and receive capability at an AP, it is desirable for the AP to simultaneously send downlink data to a STA while receiving UL data from another STA. However, with traditional CCA methods, the downlink transmission would be blocked.