公开(公告)号：US20230422230A1

公开(公告)日：2023-12-28

申请号：US18464072

申请日：2023-09-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu ,  Yunbo Li ,  Chenchen Liu ,  Ming Gan

IPC: H04W72/0453 ,  H04W84/12 ,  H04W24/10 ,  H04W28/08

CPC classification number: H04W72/0453 ,  H04W28/0827 ,  H04W24/10 ,  H04W84/12

Abstract: A trigger based null data packet transmission method and a related apparatus are provided, which relate to wireless communication, and are applied to a wireless local area network supporting an 802.11be standard. The method includes: receiving, by an EHT station, an NFRP trigger frame; determining whether a resource for scheduling the EHT station is in an EHT modulation bandwidth or an HE modulation bandwidth based on information in the NFRP trigger frame; and sending an EHT TB NDP if the resource is in the EHT modulation bandwidth; or sending an HE TB NDP if the resource is in the HE modulation bandwidth, where the NFRP trigger frame includes a first user information field, and is used to schedule the EHT station to send the HE TB NDP in the HE modulation bandwidth and send the EHT TB NDP in the EHT modulation bandwidth.

公开(公告)号：US20230413368A1

公开(公告)日：2023-12-21

申请号：US18459451

申请日：2023-09-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Guogang Huang ,  Yuxin Lu ,  Yiqing Li ,  Yuchen Guo ,  Chenchen Liu

IPC: H04W76/20 ,  H04W8/26

CPC classification number: H04W76/20 ,  H04W8/26 ,  H04W84/12

Abstract: Embodiments of this disclosure provide a data transmission method, a communication apparatus, a computer-readable storage medium, and a chip. The method includes: generating, by a first multi-link device, a management frame, where the management frame includes a receiver address, a transmitter address, and link indication information, and the link indication information indicates that the management frame is applied to at least one link corresponding to the link indication information; and sending the management frame to a second multi-link device on a link on which a station indicated by the receiver address or a station indicated by the transmitter address operates.

公开(公告)号：US20230396383A1

公开(公告)日：2023-12-07

申请号：US18451080

申请日：2023-08-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen Liu ,  Dandan Liang ,  Ming Gan

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04L27/262 ,  H04W84/12

Abstract: This application relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for transmitting a physical layer protocol data unit, and for example, is applied to a wireless local area network. The method includes: A first communications device generates a PPDU and may send the PPDU, where the PPDU includes an LTF sequence; and correspondingly, a second communications device receives the PPDU, and parses the PPDU to obtain the LTF sequence included in the PPDU. Embodiments of this application can be used to design an LTF sequence that has a relatively low PAPR on entire bandwidth, on a single resource unit, on a combined resource unit, and in a considered multi-stream scenario.

公开(公告)号：US11838848B2

公开(公告)日：2023-12-05

申请号：US17987213

申请日：2022-11-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen Guo ,  Ming Gan ,  Yunbo Li ,  Yiqing Li

IPC: H04W40/24 ,  H04W76/15

CPC classification number: H04W40/246 ,  H04W76/15

Abstract: This application discloses a multi-link device probing method and a communication apparatus, which may be applied to a wireless local area network supporting the 802.11 be standard. The method includes: A STA multi-link device generates a probe request frame, where the probe request frame carries first indication information used to indicate a first AP working on a first link in an AP multi-link device to feed back communication information of an AP that works on a second link and that is in the AP multi-link device, the communication information is used by the STA multi-link device to perform multi-link communication with the AP multi-link device, the second link is different from a first link; and the STA multi-link device sends the probe request frame on the first link.

公开(公告)号：US11838086B2

公开(公告)日：2023-12-05

申请号：US17497969

申请日：2021-10-10

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Kaifeng Xia ,  Ming Gan ,  Xin Zuo ,  Xun Yang

IPC: H04B7/06

CPC classification number: H04B7/0684 ,  H04B7/0667

Abstract: In a method of sending a frame using a cyclic shift diversity (CSD) sequence, a wireless device generates a frame comprising a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal (L-SIG) field, a repeated legacy signal (RL-SIG) field, an extremely high throughput signal A (EHT-SIG A) field, and an extremely high throughput signal B (EHT-SIG B) field. The wire device sends the frame through a set of transmit antennas by performing cyclic shift over the fields according to a CSD sequence. The number of transmit antennas is greater than 8. The number of cyclic shift diversities in the CSD sequence is equal to a number of the transmit antennas, and each cyclic shift diversity has a value that is a multiple of 12.5.

公开(公告)号：US11832263B2

公开(公告)日：2023-11-28

申请号：US17994813

申请日：2022-11-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Gan ,  Mengshi Hu ,  Jian Yu ,  Dandan Liang ,  Yiqing Li ,  Yunbo Li ,  Yuchen Guo

IPC: H04W72/04 ,  H04W72/21 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W72/21 ,  H04W72/0446 ,  H04W72/0453

Abstract: This application provides a communication method and apparatus, and relates to the field of communication technologies. The method includes: An AP generates a trigger frame, where the trigger frame includes a first user information field, a part or all of a frequency domain resource indicated by a resource unit allocation subfield in a fourth user information field before the first user information field is located on a primary 160 MHz channel, and a part or all of a frequency domain resource indicated by a resource unit allocation subfield in a fourth user information field after the first user information field is located on a secondary 160 MHz channel. Then, the AP sends the trigger frame.

公开(公告)号：US20230361941A1

公开(公告)日：2023-11-09

申请号：US18352279

申请日：2023-07-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen Guo ,  Ming Gan ,  Jian Yu ,  Mengshi Hu

IPC: H04L1/1829 ,  H04L1/1867

CPC classification number: H04L1/1861 ,  H04L1/1893 ,  H04W84/12

Abstract: In an information transmission method, a receiving device receives a data frame from a sending device. The data frame occupies a transmission resource block, and includes RU allocation information. The receiving device determines indication information based on a location of a 160 MHz channel with more data tones of the transmission resource block and a resource block size indicated by the RU allocation information. The receiving device then determines a response resource block based on the indication information and the RU allocation information, and sends an acknowledgment frame for the data frame to the sending device on the response resource block.

公开(公告)号：US20230344749A1

公开(公告)日：2023-10-26

申请号：US18338326

申请日：2023-06-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Dandan Liang ,  Yiqing Li ,  Yuchen Guo ,  Yunbo Li ,  Jian Yu ,  Xun Yang

IPC: H04W40/24 ,  H04L45/16 ,  H04W72/121

CPC classification number: H04L45/16 ,  H04W40/24 ,  H04W72/121

Abstract: This application is applicable to a multi-link group addressed traffic transmission method and an apparatus. A first access point (AP) of an AP multi-link device (MLD) sends group addressed traffic indication information indicating whether each AP of other APs of the AP MLD has a group addressed traffic, so that a station (STA) can learn whether the multiple APs have a group addressed traffic. In this way, each STA of the STAMLD does not need to listen to each AP whether each AP has a group addressed traffic. This reduces power consumption of the STA MLD. This application may be applied to a wireless local area network system that supports an IEEE 802.11ax next-generation Wi-Fi EHT protocol, for example, 802.11 series protocols such as 802.11be.

公开(公告)号：US20230344586A1

公开(公告)日：2023-10-26

申请号：US18345733

申请日：2023-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yu ,  Mengshi Hu ,  Shimon Shilo ,  Jinzhe Pan ,  Ming Gan

IPC: H04L5/00 ,  H04L69/06

CPC classification number: H04L5/0048 ,  H04L69/06

Abstract: A method includes: generating a physical layer protocol data unit PPDU, where the PPDU includes a data field; and sending the PPDU to a first station and a second station, where the first station is a station that does not support receiving a midamble, and the second station is a station that supports receiving the midamble. A second data field transmitted on a second resource unit allocated to the second station includes a midamble subfield. A first data field transmitted on a first resource unit allocated to the first station includes a useful information subfield. The useful information subfield includes useful data information, and the useful information subfield is located before a first OFDM symbol corresponding to the midamble subfield.

公开(公告)号：US20230337308A1

公开(公告)日：2023-10-19

申请号：US18338830

申请日：2023-06-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Gan ,  Yifan Zhou ,  Yunbo Li ,  Yuchen Guo ,  Jian Yu ,  Dandan Liang

IPC: H04W76/15 ,  H04W56/00

CPC classification number: H04W76/15 ,  H04W56/001

Abstract: A STA in a STA MLD sends an information frame on a link corresponding to the station, and the information frame is used to indicate a STA in an awake state in the STA MLD. An AP MLD receives the information frame, and sends a downlink message frame on a one or more links corresponding to a part of or all of STAs in the awake state in the STA MLD, to assist the part of or all of the stations in fast accessing a channel without waiting for a NAVSyncDelay time period.