公开(公告)号：US20240057091A1

公开(公告)日：2024-02-15

申请号：US18487615

申请日：2023-10-16

Applicant: Huawei Technologies Co., Ltd.

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

IPC: 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. 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：US11882514B2

公开(公告)日：2024-01-23

申请号：US17965457

申请日：2022-10-13

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W76/19 ,  H04W40/24

CPC classification number: H04W40/244 ,  H04W76/19

Abstract: This application provides a communications method and a communications apparatus. A first station in a first multi-link device sends first information to a second multi-link device, where the first information is used to indicate a frequency at which a station in a power saving mode in the first multi-link device receives a beacon frame. In this way, the second multi-link device may learn about, based on the first information, a frequency at which a station in the first multi-link device receives a beacon frame, thereby helping the second multi-link device effectively manage a cache service of each station in the first multi-link device and manage a data buffer space.

公开(公告)号：US20230284041A1

公开(公告)日：2023-09-07

申请号：US18315918

申请日：2023-05-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yu ,  Yuchen Guo ,  Jinzhe Pan ,  Ming Gan

IPC: H04W16/28 ,  H04L5/00

CPC classification number: H04W16/28 ,  H04L5/0044

Abstract: An AP sends a trigger frame, where the trigger frame is used to trigger a station to send an EHT TB PPDU; and the AP receives the EHT TB PPDU sent by the station. A common information field of the trigger frame includes four UL SRP fields, indicating a sum of transmit power of the AP and maximum interference power accepted by the AP. Values indicated by an SRP1 field and an SRP2 field in a U-SIG of the EHT TB PPDU are respectively determined based on values indicated by the four UL SRP fields.

公开(公告)号：US11743171B2

公开(公告)日：2023-08-29

申请号：US17988579

申请日：2022-11-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L45/16 ,  H04W40/24 ,  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 STA MLD 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：US20230231752A1

公开(公告)日：2023-07-20

申请号：US18186225

申请日：2023-03-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen Liu ,  Ming Gan ,  Jian Yu

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2613 ,  H04L5/0048

Abstract: This disclosure relates to the wireless communication field, for example, is applied to a wireless local area network supporting the 802.11 standard, and in particular, to a physical layer protocol data unit (PPDU) transmission method and a related apparatus. The method includes: A first communication device generates and sends a first PPDU, where the first PPDU carries rotation coefficient indication information indicating a rotation coefficient of at least one field, which comprises at least one of an extremely high throughput short training field (EHT-STF) or an extremely high throughput long training field (EHT-LTF) and correspond to a frequency segment on which the first PPDU is transmitted, and the first PPDU is a sub-PPDU in an aggregated PPDU or a PPDU on a frequency segment among at least one PPDU in a multi-frequency segment transmission mode.

公开(公告)号：US11683077B2

公开(公告)日：2023-06-20

申请号：US16931551

申请日：2020-07-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiangbai Liao ,  Yingzhuang Liu ,  Jian Yu

IPC: H04B7/0456 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04W24/08 ,  H04W28/18 ,  H04W84/12 ,  H04W92/20

CPC classification number: H04B7/0456 ,  H04B7/0617 ,  H04L5/0073 ,  H04L25/0202 ,  H04W24/08 ,  H04W28/18 ,  H04W84/12 ,  H04W92/20

Abstract: A coordinated transmission control method, apparatus, and system are disclosed. A primary access point and a secondary access point determine whether to perform coordinated transmission through inter-cell configuration parameter sharing and based on a dual decision condition of an interference test, further determine an anti-interference beamforming manner based on a specific cell configuration parameter, and determine whether to perform coordinated transmission with reference to the dual decision condition of the interference test, so that the access points can learn an interference status in advance, thereby preventing unnecessary retransmission resulting from interference caused during actual coordinated transmission, and improving communication efficiency.

公开(公告)号：US20230137534A1

公开(公告)日：2023-05-04

申请号：US18148671

申请日：2022-12-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu ,  Mengshi Hu ,  Ming Gan

IPC: H04W72/0453 ,  H04L1/1607

Abstract: This application discloses communication methods and apparatuses. In an example method, a physical layer protocol data unit (PPDU) is generated and sent. The PPDU includes multiple resource unit allocation subfields. The multiple resource unit allocation subfields include a resource unit allocation subfield corresponding to a multiple resource unit (MRU) to indicate that a 242-tone resource unit (RU) corresponding to the resource unit allocation subfield belongs to the MRU. A number of resource unit allocation subfields corresponding to the MRU in a resource unit allocation subfield corresponding to each 80 MHz subblock in a bandwidth for transmitting the PPDU is for determining or indicating a type of the MRU. A station can determine, based on the number of resource unit allocation subfields corresponding to the MRU in the resource unit allocation subfield corresponding to each 80 MHz subblock, which type of MRU is included in the bandwidth for transmitting the PPDU.

公开(公告)号：US20230109874A1

公开(公告)日：2023-04-13

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

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：US20230096177A1

公开(公告)日：2023-03-30

申请号：US18074269

申请日：2022-12-02

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：US20230086669A1

公开(公告)日：2023-03-23

申请号：US17992705

申请日：2022-11-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu ,  Yuchen Guo ,  Chenchen Liu ,  Yunbo Li ,  Ming Gan ,  Dandan Liang

IPC: H04L5/00

Abstract: A method includes: An access point generates an NDPA frame, where the NDPA frame includes a station information field, and the station information field includes an AID subfield indicating an association identifier AID of a station; the station information field further includes a partial bandwidth information subfield; the partial bandwidth information subfield indicates an RU that is in a bandwidth corresponding to the NDPA frame and for which the station needs to feed back channel state information; and the bandwidth corresponding to the NDPA frame is greater than 160 MHz. The access point transmits the NDPA frame.