公开(公告)号：US20210176786A1

公开(公告)日：2021-06-10

申请号：US17181536

申请日：2021-02-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan LIANG ,  Ming GAN ,  Xin ZUO ,  Yunbo LI

IPC: H04W74/08 ,  H04L29/06 ,  H04W72/12

Abstract: Example methods and apparatus for implementing collision detection in data transmission are described, One example method includes sending a data packet including collision detection information to a receive end, where the collision detection information is used by the receive end to perform collision detection on the data packet. A status indication message sent by the receive end is received by the receive end when sending the data packet. The receive end parses the status indication message. If the status indication message includes collision information, the receive end perform retransmission of the data packet.

公开(公告)号：US20200328863A1

公开(公告)日：2020-10-15

申请号：US16908262

申请日：2020-06-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jia JIA ,  Ming GAN ,  Xun YANG

IPC: H04L5/00 ,  H04W52/02 ,  H04W52/52

Abstract: An example wake-up packet sending method includes obtaining, by a sending apparatus, a wake-up packet (WUP), where the WUP includes a preamble sequence, and sending the WUP to wake up a main receiver of a receiving apparatus. The preamble sequence includes N consecutive first sequences S, where N is an integer greater than or equal to 2 (for example, [S S]), and the N consecutive first sequences S are used to indicate that a data rate used for the WUP is a first value. Or the preamble sequence includes a second sequence M, where the second sequence M is used to indicate that a data rate used for the WUP is a second value, and the second sequence M and a first sequence S are in a bit logical negation relationship.

公开(公告)号：US20190173649A1

公开(公告)日：2019-06-06

申请号：US16271890

申请日：2019-02-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meilu LIN ,  Ming GAN ,  Le LIU ,  Jun ZHU ,  Jian YU

IPC: H04L5/00 ,  H04W28/18 ,  H04W72/12 ,  H04W28/06

Abstract: A method for sending a wireless local area network packet structure is provided, and the method comprises: determining a packet structure, where the packet structure comprises an HE-SIGA and an HE-SIGB, the HE-SIGA comprises an indication information, and if a current transmission mode is a full bandwidth MU-MIMO transmission, the indication information is used to indicate a number of scheduled users, or if the current transmission mode is other transmission mode, the indication information is used to indicate a number of symbols in the HE-SIGB; and sending the packet structure.

公开(公告)号：US20180351721A1

公开(公告)日：2018-12-06

申请号：US16055850

申请日：2018-08-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunbo LI ,  Yanchun LI ,  Le LIU ,  Jiayin ZHANG ,  Ming GAN

IPC: H04L5/00 ,  H04W24/02 ,  H04W72/04

Abstract: The present invention discloses a method and an apparatus for indicating a channel in a wireless local area network WLAN. A sending station generates and sends a physical protocol data unit PPDU, the PPDU includes a preamble field and a data field, a high efficiency signal field HE-SIG-A of the preamble field includes a bandwidth identifier and a channel bonding identifier, and the channel bonding identifier is used to indicate whether a data transmission channel is continuous in a frequency domain. In the foregoing manner, a discontinuous channel in a frequency domain in a wireless local area network is indicated, an available channel for data transmission is improved, and a system throughput is increased.