公开(公告)号：WO2023077298A1

公开(公告)日：2023-05-11

申请号：PCT/CN2021/128381

申请日：2021-11-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： EPSTEIN, Avner ,  SHILO, Shimon ,  KLEIN, Arik ,  REDLICH, Oded ,  YU, Jian ,  EZRI, Doron

IPC: H04W72/04

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：WO2023272461A1

公开(公告)日：2023-01-05

申请号：PCT/CN2021/102908

申请日：2021-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： SHILO, Shimon ,  REDLICH, Oded ,  TSODIK, Genadiy ,  YU, Jian ,  GAN, Ming

IPC: H04W28/20

Abstract: This application relates to the field of communications technologies, in particular Wireless Local Area Network technologies, and provides a method and apparatus for reducing a peak to average power ratio (PAPR) for transmitting a physical layer protocol data unit (PPDU), in particular reducing the PAPR for the U-SIG field. Methods are disclosed for both an access point (AP) and stations (STA).

公开(公告)号：WO2022053143A1

公开(公告)日：2022-03-17

申请号：PCT/EP2020/075519

申请日：2020-09-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  REDLICH, Oded

Inventor： SHILO, Shimon ,  YU, Jian ,  EZRI, Doron ,  EPSTEIN, Avner ,  KLEIN, Arik ,  TSODIK, Genadiy

IPC: H04B7/0452 ,  H04W72/04

Abstract: The present disclosure relates to MU-MIMO signaling in wireless communications. To this end, the disclosure proposes a wireless transmitting device being configured to: obtain a compressed-mode PPDU that comprises one or more SC fields, wherein each SC field corresponds to one MU-MIMO group of the one or more MU-MIMO groups and is indicative of a spatial stream configuration for user devices of that MU-MIMO group; and transmit the PPDU to the user devices of the one or more MU-MIMO groups over a predetermined BW. Further, this disclosure also proposes a user device being configured to: receive a compressed- mode PPDU from a wireless transmitting device; and decode the PPDU to obtain a SC field corresponding to the MU-MIMO group that the user device belongs to.

公开(公告)号：WO2022241795A1

公开(公告)日：2022-11-24

申请号：PCT/CN2021/095340

申请日：2021-05-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： TSODIK, Genadiy ,  SHILO, Shimon ,  KLEIN, Arik ,  REDLICH, Oded ,  YU, Jian

IPC: H04W80/00

Abstract: The present disclosure relates to AP-to-AP communication in wireless communications. To this end, the disclosure proposes a wireless transmitting device being configured to: transmit a PPDU to at least one wireless receiving device, wherein the PPDU comprises at least one of: a first indication that indicates that the PPDU includes an AP-to-AP communication, intended for at least one other AP and not intended for any non-AP station; a second indication that indicates that the PPDU is not intended for any other AP; and a third indication that indicates that the PPDU is intended for at least one other AP and at least one non-AP station. (FIG. 2)

公开(公告)号：WO2021007708A1

公开(公告)日：2021-01-21

申请号：PCT/CN2019/095792

申请日：2019-07-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： TSODIK, Genadiy ,  SHILO, Shimon ,  EZRI, Doron ,  REDLICH, Oded ,  YU, Jian

IPC: H04B7/06 ,  H04L27/26

Abstract: There is provided an apparatus for computation of a feedback message to a beamforming device, comprising: a processor configured to: receive narrowband precoder feedback messages computed based on a calibration message transmitted by the beamforming device, the calibration message is analyzed to compute a parameter of a wideband precoder feedback message for a transmission bandwidth, and the narrowband precoder feedback messages are computed according to the parameter of the wideband precoder feedback message, select data element (s) from the narrowband precoder feedback messages for compression thereof using a first compression process that is different than a second compression process used for compression of non-selected data elements, generate compressed narrowband precoder feedback messages by compressing the selected data element (s) with the first compression process and compressing non-selected data elements with the second compression process, and provide the compressed narrowband precoder and the wideband precoder feedback message for transmission to the beamforming device.

公开(公告)号：WO2022141331A1

公开(公告)日：2022-07-07

申请号：PCT/CN2020/141894

申请日：2020-12-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： SHILO, Shimon ,  REDLICH, Oded ,  MELZER, Ezer ,  EZRI, Doron ,  LEVINBOOK, Yoav ,  TSODIK, Genadiy ,  YU, Jian ,  HU, Mengshi

IPC: H04L27/26

Abstract: This application relates to the field of communications technologies, in particularly related to WIFI technologies, and provides a method and apparatus for reducing peak to average power ratio (PAPR) for transmitting a physical layer protocol data units (PPDUs) are disclosed. The method can be used for both an access point (AP) and a stations (STA). The method comprises: operating on a first disregard bits sequence to obtain a second disregard bits sequence, wherein the first disregard bits sequence is with all bits set to '1', and transmitting the PPDU, wherein the PPDU comprises the second disregard bits sequence.

公开(公告)号：WO2021083476A1

公开(公告)日：2021-05-06

申请号：PCT/EP2019/079359

申请日：2019-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  TSODIK, Genadiy

Inventor： SHILO, Shimon ,  EZRI, Doron ,  REDLICH, Oded ,  YU, Jian ,  GAN, Ming

IPC: H04B7/06 ,  H04B7/0452

Abstract: The present disclosure relates to techniques for managing beamformed uplink transmissions of beamformer devices such as WiFi client stations which are particularly initiated by a beamformee device such as a WiFi access point (AP). In particular, the disclosure relates to a method (1500) for managing beamformed uplink transmissions of one or more beamformer devices (210), e.g. WiFi client stations (101, 102, 103), wherein the method (1500) is initialized by a beamformee device (220), e.g. a WiFi access point (110), the method comprising: transmitting (1501), by a beamformee device (220), e.g. a WiFi access point (110), to one or more beamformer devices (210), e.g. WiFi client stations (101, 102, 103), an indication of a precoder for Uplink transmission per Uplink transmission (104, 105, 106).

公开(公告)号：WO2022143433A1

公开(公告)日：2022-07-07

申请号：PCT/CN2021/141003

申请日：2021-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： SHILO, Shimon ,  REDLICH, Oded ,  TSODIK, Genadiy ,  YU, Jian ,  GAN, Ming ,  MELZER, Ezer ,  EZRI, Doron ,  LEVINBOOK, Yoav ,  HU, Mengshi

IPC: H04L27/26

Abstract: This application relates to the field of communications technologies, in particular Wireless Local Area Network technologies, and provides a method and apparatus for reducing a peak to average power ratio (PAPR) for transmitting a physical layer protocol data unit (PPDU), in particular reducing the PAPR for the U-SIG field. Methods are disclosed for both an access point (AP) and stations (STA).

公开(公告)号：WO2022061894A1

公开(公告)日：2022-03-31

申请号：PCT/CN2020/118420

申请日：2020-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： SHILO, Shimon ,  REDLICH, Oded ,  YU, Jian ,  TSODIK, Genadiy

IPC: H04L1/00 ,  H04W84/12

Abstract: The present disclosure relates to techniques for forward error correction and packet padding in radio transmission, e.g. WiFi communication schemes such as IEEE 802.11ax and 802.11be. In particular the disclosure relates to a communication device (100), configured to: transmit and/or receive a data frame based on a set of pre&post-Forward Error Correction, FEC, parameters and a set of packet extension, PE, parameters, wherein the set of pre&post-FEC parameters is based on an extension of a set of pre&post-FEC parameters defined for a second radio transmission technology with respect to a size of resource units, RUs, supported by a first radio transmission technology, wherein the set of pre&post-FEC parameters is based on a combination of RUs that is supported by the first radio transmission technology and wherein the set of PE parameters is based on an extension of a set of PE parameters defined for the second radio transmission technology.

公开(公告)号：WO2020104029A1

公开(公告)日：2020-05-28

申请号：PCT/EP2018/082208

申请日：2018-11-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  EZRI, Doron

Inventor： EZRI, Doron ,  SHILO, Shimon ,  EPSTEIN, Leonid ,  YU, Jian

IPC: H04L1/00

Abstract: The present invention relates to Hybrid Automatic Repeat Request (HARQ) in wireless communication technologies, particularly HARQ for IEEE 802.11, i.e. HARQ for Wi-Fi. To this end, the invention proposes a transmitting device and a receiving device, respectively, both configured to support such HARQ in Wi-Fi. The transmitting device is configured to: select a first interleaving sequence; interleave a data unit using the first interleaving sequence to obtain a first interleaved data unit to be transmitted to a receiving device. Accordingly, the receiving device is configured to: receive a first interleaved data unit; select a first de-interleaving sequence according to a first interleaving sequence; and de-interleave the first interleaved data unit using the first de-interleaving sequence to obtain the data unit.