公开(公告)号：US20200382139A1

公开(公告)日：2020-12-03

申请号：US16998528

申请日：2020-08-20

Applicant: Yaron Yoffe ,  Assaf Gurevitz ,  Elad Meir ,  Shlomi Vituri ,  Qinghua Li ,  Xiaogang Chen ,  Feng Jiang

Inventor： Yaron Yoffe ,  Assaf Gurevitz ,  Elad Meir ,  Shlomi Vituri ,  Qinghua Li ,  Xiaogang Chen ,  Feng Jiang

IPC: H03M13/25 ,  H03M13/11 ,  H03M13/00 ,  H04L1/00 ,  H04L5/00

Abstract: An apparatus for a station (STA) configured for operating in a next-generation (NG) wireless local area network (WLAN) comprises the processing circuitry configured to modify probabilities of constellation points to generate a more Gaussian distribution. In these embodiments, for LDPC framing and OFDM packing, the transmitter circuitry may be configured to compute a number of output bits (bout) to be transmitted based on a number of payload bits (bin) at an output of a shaping encoder, a shaping rate (rshaping), and an overhead percent (Boverhead). A shaping gain of up to 1.53 dB may be achieved. A new shaping encoder is provided to address the issue that the number of bits is not fixed.

公开(公告)号：US20190159207A1

公开(公告)日：2019-05-23

申请号：US16251010

申请日：2019-01-17

Applicant: Xiaogang Chen ,  Shlomi Vituri ,  Assaf Gurevitz ,  Qinghua Li ,  Feng Jiang

Inventor： Xiaogang Chen ,  Shlomi Vituri ,  Assaf Gurevitz ,  Qinghua Li ,  Feng Jiang

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04L5/00 ,  H04L5/005 ,  H04L5/0053

Abstract: This disclosure describes systems, methods, and devices related to tone mapping for a high-efficiency (HE) trigger-based (TB) null data packet (NDP) feedback physical layer protocol data unit (PPDU). A device may identify a frame received from a second device. The device may determine, based on the frame, a resource unit allocated to the device, wherein the resource unit is associated with a 20 MHz sub-channel of a bandwidth. The device may determine, based on the resource unit and the bandwidth, tones associated with a HE short training field (HE-STF) of a HE TB NDP feedback PPDU. The device may send the HE TB NDP feedback PPDU to the second device in the 20 MHz sub-channel, wherein the HE TB NDP feedback PPDU includes the tones.

公开(公告)号：US20170288747A1

公开(公告)日：2017-10-05

申请号：US15084977

申请日：2016-03-30

Applicant: CHIA-HSIANG CHEN ,  MOHAMED K. HASSANIN ,  AHMED GAMAL HELMY MOHAMED ,  SHAHRNAZ AZIZI ,  FARHANA SHEIKH ,  ASSAF GUREVITZ ,  THOMAS J. KENNEY

Inventor： CHIA-HSIANG CHEN ,  MOHAMED K. HASSANIN ,  AHMED GAMAL HELMY MOHAMED ,  SHAHRNAZ AZIZI ,  FARHANA SHEIKH ,  ASSAF GUREVITZ ,  THOMAS J. KENNEY

IPC: H04B7/04 ,  H04B1/7105

CPC classification number: H04B7/0452 ,  H04L1/0048 ,  H04L1/005

Abstract: Embodiments relate to systems, methods, and computer readable media to enable a wireless receiver are described. In one embodiment a wireless receiver includes a channel decoder and a Soft-Input Soft-Output Multiple-Input Multiple-Output detector (SISO MIMO detector). The SISO MIMO detector includes circuitry to generate soft symbol outputs for each of a plurality of received spatial streams, and circuitry to adjust a signal to noise plus interference ratio for the soft symbol outputs using channel statistics and using hard decisions from an output of the channel decoder. The channel decoder is configured to receive soft binary information generated from the soft symbol outputs from the SISO MIMO detector and perform these steps iteratively a number of times.

公开(公告)号：US20170135046A1

公开(公告)日：2017-05-11

申请号：US15344227

申请日：2016-11-04

Applicant: Ilan Sutskover ,  Laurent Cariou ,  Yaron Alpert ,  Uri Perlmutter ,  Assaf Gurevitz ,  Ziv Avital ,  Avi Mansour ,  Chittabrata Ghosh

Inventor： Ilan Sutskover ,  Laurent Cariou ,  Yaron Alpert ,  Uri Perlmutter ,  Assaf Gurevitz ,  Ziv Avital ,  Avi Mansour ,  Chittabrata Ghosh

IPC: H04W52/24 ,  H04L29/06 ,  H04B17/336 ,  H04W52/30 ,  H04W72/04

CPC classification number: H04W52/325 ,  H04W52/146 ,  H04W52/241 ,  H04W52/242 ,  H04W52/245 ,  H04W52/343 ,  H04W52/365 ,  H04W72/042 ,  H04W84/12

Abstract: Methods, apparatuses, computer readable media for uplink transmission power control in a wireless network. An apparatus of a wireless device comprising processing circuitry is disclosed. The processing circuitry is configured to decode a trigger frame from an access point for an uplink communication, the trigger frame comprising an uplink resource allocation for the station, the uplink resource allocation including common information and per station information, the common information including an indication of a maximum receive power at the access point, the per station information comprising an identification of the station, and an indication of a resource unit (RU). The processing circuitry may be further configured to: encode an uplink (UL) physical layer convergence procedure (PLCP) protocol data unit (PPDU)(UL-PPDU) in accordance with the indication of the RU. The processing circuitry may be further configured to: determine a transmit power for the UL-PPDU based on the maximum receive power.

公开(公告)号：US07376117B2

公开(公告)日：2008-05-20

申请号：US10987191

申请日：2004-11-12

Applicant: Yossi Erlich ,  Assaf Gurevitz

Inventor： Yossi Erlich ,  Assaf Gurevitz

IPC: H04J1/00

CPC classification number: H04L1/0071 ,  H03M13/271 ,  H03M13/275 ,  H03M13/276 ,  H04B1/71635 ,  H04L1/007 ,  H04L1/0072 ,  H04L1/04 ,  H04L27/2602

Abstract: Interleaving circuit for a multiband OFDM (orthogonal frequency division multiplexing) transceiver of a ultra wide band wireless personal access network transmitting OFDM modulated symbols, wherein each OFDM symbol consists of a predetermined number (NCBPS) of encoded bits, said interleaving circuit comprising a symbol interleaving unit which receives an input bitstream of encoded bits and permutes adjacent bits of said input bitstream across different OFDM symbols; an intra-symbol tone interleaving unit which receives the bits permuted by said symbol interleaving unit and permutes adjacent bits of each OFDM symbol across uncorrelated data sub-carriers; and an intra-symbol cyclic shift unit which shifts cyclically NCBPS bits of each OFDM symbol in response to a shift value (K) which is changed between adjacent OFDM symbols.

Abstract translation: 用于发射OFDM调制符号的超宽带无线个人接入网络的多频带OFDM（正交频分复用）收发机的交错电路，其中每个OFDM符号由编码比特的预定数目（N CBPS）组成 所述交织电路包括符号交错单元，其接收编码比特的输入比特流，并且通过不同OFDM符号置换所述输入比特流的相邻比特; 符号间音调交错单元，其接收由所述符号交织单元置换的比特，并且跨越不相关的数据子载波排列每个OFDM符号的相邻比特; 以及符号间循环移位单元，其响应于在相邻OFDM符号之间改变的移位值（K）来循环移位每个OFDM符号的N个CBPS位。