公开(公告)号：US20230283324A1

公开(公告)日：2023-09-07

申请号：US18171223

申请日：2023-02-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Genadiy Tsodik ,  Shimon Shilo ,  Oded Redlich

IPC: H04B7/0426 ,  H04B7/0456

CPC classification number: H04B7/043 ,  H04B7/0456

Abstract: A beamformer device is provided for WiFi communication schemes such as IEEE 802.11ax and 802.11be. The beamformer device is configured to: transmit a request to a beamformee device, the request comprising a set of sounding tone indices, the set of sounding tone indices indicating tones for which a report of beamforming information is requested from the beamformee device, wherein the tones are defined according to a first WiFi scheme, wherein the set of sounding tone indices is based on a first tone plan defined by the first WiFi scheme for a partial channel bandwidth and on a second tone plan defined by a second WiFi scheme for a full channel bandwidth. A corresponding beamformee device is further provided.

公开(公告)号：US11363632B2

公开(公告)日：2022-06-14

申请号：US16887820

申请日：2020-05-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Leonid Epstein ,  Shimon Shilo ,  Avi Weitzman ,  Genadiy Tsodik ,  Doron Ezri ,  Jian Yu

IPC: H04W74/08 ,  H04W72/04 ,  H04W72/12 ,  H04W80/02 ,  H04W84/12

Abstract: A device on a wireless network generates duration data for determining a duration of a time interval. A transmission is then instructed, by the device, to transmit the duration data and a downlink payload including an aggregated Media Access Control (MAC) layer data unit, the downlink payload being transmitted on first subcarriers. The transmission also includes a trigger that configures the at least one other device on the network to transmit an uplink payload within the time interval, and during at least part of the transmission of the downlink payload, on second subcarriers that are at different frequencies to the first subcarriers.

公开(公告)号：US10587318B2

公开(公告)日：2020-03-10

申请号：US16014232

申请日：2018-06-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Doron Ezri ,  Genadiy Tsodik ,  Shimon Shilo ,  Oded Redlich ,  Yaron Ben-Arie

IPC: H04B7/0456 ,  H04B7/0417

Abstract: An apparatus for deriving a submatrix {tilde over (G)}−1 is described. The apparatus for deriving a submatrix {tilde over (G)}−1 is configured to select an N-elements-column and an N-elements-row of an N×N-Matrix G or G−1. The apparatus for deriving a submatrix {tilde over (G)}−1 is configured to rearrange the selected column to the rightest column and the selected row to the lowest row of G or G−1 so as to generate a N×N-matrix Gp or Gp−1. The apparatus for deriving a submatrix {tilde over (G)}−1 is configured to calculate a submatrix {tilde over (G)}−1 by G ~ - 1 = A - AbcA d - 1 + c T ⁢ Ab , wherein the parameters (N−1)×(N−1)-submatrix A, b, d, c are obtained from the Gp or the Gp−1; wherein G p = [ G ~ b c T d ] , ⁢ G p - 1 = [ A b ~ c ~ T d ~ ] .

公开(公告)号：US10523485B2

公开(公告)日：2019-12-31

申请号：US16034721

申请日：2018-07-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Doron Ezri ,  Shimon Shilo ,  Hao Tang ,  Jiehua Xiao ,  Jianmin Lu ,  Ori Shental ,  Ezer Melzer

IPC: H04L27/26 ,  H04B7/0452 ,  H04L5/00

Abstract: An apparatus for band-limited frequency division multiplexing for uplink transmission to a base station or access point, particularly from an IoT device, comprises a signal modulator to transmit a signal over a set of contiguous equally spaced frequency sub-carriers ranging from a lowest frequency sub-carrier via intermediate sub-carriers to a highest frequency sub-carrier. The signal modulator contains a filter to apply asymmetric filtering over the range of the frequency sub-carriers, thereby to reduce a peak-to-average power ratio of the transmitted signal.

公开(公告)号：US20180199382A1

公开(公告)日：2018-07-12

申请号：US15916837

申请日：2018-03-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Genadiy Tsodik ,  Shimon Shilo ,  Doron Ezri ,  Oded Redlich ,  Xiao Han

IPC: H04W74/08 ,  H04B7/26 ,  H04W8/26

CPC classification number: H04W74/0858 ,  H04B7/2612 ,  H04W8/26 ,  H04W74/0816 ,  H04W88/08

Abstract: A client type communication device for communicating with an access point type communication device is provided. The client type communication device comprises a communication unit adapted to use at least one of first communication resources for performing a random access communication if the client type communication device is in an associated mode regarding the access point type communication device, and to use at least one of second communication resources different from the first communication resources for performing a random access communication to the access point type communication device if the client type communication device is in a non-associated mode regarding the access point type communication device.

公开(公告)号：US20250055728A1

公开(公告)日：2025-02-13

申请号：US18930889

申请日：2024-10-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu ,  Genadiy Tsodik ,  Shimon Shilo ,  Ming Gan

IPC: H04L25/02 ,  H04L5/00

Abstract: Disclosed are a physical layer (PHY) protocol data unit (PPDU) transmission method and a related apparatus. The method includes: generating a PPDU, where the PPDU includes a universal signal field (U-SIG), and the U-SIG includes a subfield indicating that the PPDU is a null data packet (NDP); and sending the PPDU. In this way, a beamformee (Bfee) that receives the NDP can identify the NDP earlier. This helps improve efficiency of reading the NDP by the Bfee. The PPDU is an NDP used for a standard after 802.11ax. In a scenario in which wireless communication is performed by using the standard (for example, 802.11be) after 802.11ax, the Bfee can perform channel estimation based on the NDP.

公开(公告)号：US20240421948A1

公开(公告)日：2024-12-19

申请号：US18818551

申请日：2024-08-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Oded Redlich ,  Shimon Shilo ,  Jian Yu ,  Yunbo Li ,  Genadiy Tsodik

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: The present disclosure suggests to expand and improve the method of utilizing channel resources in the 802.11be standard by allowing the use of multiple and non-contiguous portions of a channel. Supporting multiple resource units (MRUs) and non-contiguous resource units (RUs) improves the channel utilization by making it more efficient due to enhancing the capability of leveraging the channel selectivity. To this end, a wireless network device for resource allocation is provided and configured to define a non-contiguous MRU in the bandwidth of the channel. The channel comprises a plurality of RUs, and the MRU is defined based on non-punctured RUs after puncturing one or more of the RUs of the channel, and/or is defined by aggregating two or more non-adjacent RUs of the channel.

公开(公告)号：US12075388B2

公开(公告)日：2024-08-27

申请号：US17513712

申请日：2021-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Oded Redlich ,  Shimon Shilo ,  Jian Yu ,  Yunbo Li ,  Ming Gan ,  Genadiy Tsodik

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/044 ,  H04W74/0808

CPC classification number: H04W72/044 ,  H04L5/0037 ,  H04W74/0808

Abstract: A signaling method and device can support channel puncturing of BW size. Embodiments provide various options for signaling methods, each of which may be suitable for supporting single-user and/or multi-user communication. A wireless network device is suitable for channel puncturing, and can include information regarding the channel puncturing in a preamble of a transmitted packet.

公开(公告)号：US20240284505A1

公开(公告)日：2024-08-22

申请号：US18652534

申请日：2024-05-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Avner Epstein ,  Shimon Shilo ,  Arik Klein ,  Oded Redlich ,  Jian Yu ,  Doron Ezri

IPC: H04W74/0808 ,  H04L1/00 ,  H04L1/1607 ,  H04W84/12

CPC classification number: H04W74/0808 ,  H04L1/0013 ,  H04L1/1614 ,  H04W84/12

Abstract: An access point, AP (110), configured to perform a sounding procedure with one or more associated non-AP stations (120) in a wireless local area network (100) is provided. The AP (110) comprises a processing circuitry (111) configured to generate a null data PPDU announcement, NDPA, frame, wherein the NDPA frame comprises for each of the one or more associated non-AP stations (120) a station info field. The station info field comprises a partial BW info subfield, including a feedback bitmap and an indication of a resolution and/or a range of the feedback bitmap with a 20 MHz or 40 MHz subchannel resolution for a Sounding NDP with a bandwidth of up to 320 MHz. The AP (110) further comprises a communication interface (113) configured to transmit the NDPA frame to the one or more associated non-AP stations (120). Moreover, a corresponding non-AP station (120) is disclosed.

公开(公告)号：US11984990B2

公开(公告)日：2024-05-14

申请号：US17099251

申请日：2020-11-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Leonid Epstein ,  Shimon Shilo ,  Yaron Ben-Arie ,  Ezer Melzer ,  Doron Ezri ,  Wei Lin

IPC: H04L1/18 ,  H04L1/00 ,  H04L1/1607 ,  H04L1/1812

CPC classification number: H04L1/1819 ,  H04L1/0008 ,  H04L1/0011 ,  H04L1/0061 ,  H04L1/1621

Abstract: The present disclosure relates to Hybrid Automatic Repeat Request (HARQ) in wireless communication technologies, particularly HARQ for IEEE 802.11, i.e. HARQ for Wi-Fi. One example transmitting device is configured to encapsulate a data unit in a container unit, and encode the container unit into a codeword set of one or more codewords. One example receiving device is configured to receive, from a transmitting device, at least one codeword set of one or more codewords, decode the codewords of the codeword set to obtain a container unit, and decapsulate the container unit to obtain a data unit. A bit-size of the container unit is equal to a bit-size of the codeword set in the transmitting device and the receiving device.