公开(公告)号：US20210226721A1

公开(公告)日：2021-07-22

申请号：US16302676

申请日：2017-09-22

Applicant: SOUTHEAST UNIVERSITY

Inventor： Xiqi GAO ,  Chen SUN ,  Wenjin WANG ,  Li YOU ,  Anan LU ,  Wen ZHONG

IPC: H04J14/08 ,  H04B10/11 ,  H04B10/50 ,  H04W72/04 ,  H04L5/00

Abstract: The invention discloses a beam domain optical wireless communication method and system. A base station is equipped with an array of optical transceiver ports or transmitter/receiver ports and a lens, each optical transceiver port forms a beam with centralized energy through the lens, and the base station generates beams in different directions by using the optical transceiver port array and the lens, thereby realizing multi-beam coverage or large-scale beam coverage in a communication region. The base station transmits/receives signals of multiple or a large number of user terminals by using channel state information of each user terminal, and different optical transceiver ports transmit/receive signals in different directions, thereby realizing simultaneous communication and bidirectional communication between the base station and different user terminals.

公开(公告)号：US20230044988A1

公开(公告)日：2023-02-09

申请号：US17962558

申请日：2022-10-10

Applicant: SOUTHEAST UNIVERSITY

Inventor： Xiqi GAO ,  Chen SUN ,  Jiaheng WANG

IPC: H04B10/11

Abstract: A fiber enabled optical wireless communication (FE-OWC) system and method is provided. An optical antenna composed of an optical fiber transceiving port array and a lens or a reflecting mirror is used to generate optical beams in different directions, such that full-beam coverage of a communication area is implemented. The optical antenna is connected to an optical chain by an optical fiber, the optical chain realizes mutual conversion of an optical signal and an electrical signal, and a baseband signal processing unit which is in electrical signal connection with the optical chain realizes user scheduling, transceiving signal processing, etc. Multi-user multiple-input multiple-output (MIMO) or massive MIMO or beam division multiple access optical wireless communication between a base station and user terminals is implemented by using the optical beams. The FE-OWC system and method may support ultra-high-rate user data transmission and system throughput, and have a low complexity.