公开(公告)号：US20240146408A1

公开(公告)日：2024-05-02

申请号：US17973685

申请日：2022-10-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： SANJEEWA HERATH ,  JAVAD ABDOLI

IPC: H04B7/22 ,  H04W76/28

CPC classification number: H04B7/22 ,  H04W76/28

Abstract: A backscatter transmission scheme is provided in which a carrier signal is transmitted by a carrier communication device discontinuously as carrier signal bursts. The carrier signal, while it is on, is divided into carrier time segments. Each carrier time segment has a specified time. The different carrier time segments represent different times that backscatter devices can make backscatter transmissions. In addition, in some embodiments, a set of frequencies are available for backscatter transmission. The set of frequencies includes the carrier frequency and a set of frequencies with respective frequency shifts relative to the carrier frequency. The combination of a specific carrier time segment, a specific frequency shift, together constitutes a specific backscatter transmission opportunity.

公开(公告)号：US20240421959A1

公开(公告)日：2024-12-19

申请号：US18814047

申请日：2024-08-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： SANJEEWA HERATH ,  Lei Wang

IPC: H04L5/00 ,  H04L27/26

Abstract: In a wireless communications having a base station in communication with a plurality of user equipments (UEs), the UEs are classified into a plurality of UE groups based on the communication conditions thereof. Each UE is assigned with a device-based signature for the UE and a group-based signature for a group having the UE as a member thereof. Then, a wireless signal is generated based on the first and second signatures and transmitted between the base station and the UE.