公开(公告)号：US11025466B2

公开(公告)日：2021-06-01

申请号：US16401729

申请日：2019-05-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jinnan Liu ,  Dejian Li ,  Jiamin Chen

IPC: H04L27/26 ,  H04L5/00 ,  H04W84/12

Abstract: The present application discloses a reference signal configuration method, including: generating a reference signal, where the reference signal includes a first part and a second part, the first part and the second part have a same length, and a sum of a DC component of the first part and a DC component of the second part is zero; generating an enhanced directional multi-gigabit EDMG packet including the reference signal; and sending the EDMG packet. Embodiments of the present application further provide a reference signal configuration apparatus. According to the embodiments of the present application, a reference signal with a zero DC component can be obtained, thereby facilitating channel estimation that is based on CE.

公开(公告)号：US10911107B2

公开(公告)日：2021-02-02

申请号：US16182215

申请日：2018-11-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinnan Liu ,  Dejian Li ,  Yongping Zhang ,  Jiamin Chen

IPC: H04B7/0417 ,  H04B7/06 ,  H04W40/06 ,  H04W16/28 ,  H04B7/10

Abstract: A beam refinement method and a communications device, where the method includes determining, by a first device, a format of an enhanced Beam Refinement Protocol (eBRP) packet, where the eBRP packet includes a training field, the training field includes an eBRP channel estimation (eBRP-CE) sub-field and an eBRP training (eBRP-TRN) sub-field, and a ratio of a quantity of Gray codes composing the eBRP-CE sub-field in the training field to a quantity of Gray codes composing the eBRP-TRN sub-field in the training field is less than 9:20, and sending, by the first device, the eBRP packet to a second device based on the determined format of the eBRP packet. Hence, an effective proportion of the eBRP-TRN sub-field in the training field can be increased such that more Antenna Weight Vector (AWV) configurations can be attempted within a same period of time.