公开(公告)号：US20210176100A1

公开(公告)日：2021-06-10

申请号：US16759136

申请日：2018-10-24

Applicant: Nokia Solutions and Networks OY

Inventor： Chenhui Ye ,  Dongxu Zhang ,  Kaibin Zhang

IPC: H04L25/08 ,  H04B1/38

Abstract: Embodiments of the present disclosure provide a signal processing apparatus and method, a network device and a computer readable storage medium. The apparatus comprises: a receiving unit configured to receive a signal from a remote radio frequency unit (RRH), the RRH being independent from the signal processing apparatus; a processing unit configured to perform signal enhancement on the signal; and a transmitting unit configured to transmit the enhanced signal to a baseband unit (BBU). According to the present disclosure, it is possible to implement a fronthaul or anyhaul solution with a high reliability, and meanwhile save the RF transmission power of the terminal device and reduce the operation costs of the operators.

公开(公告)号：US11032006B2

公开(公告)日：2021-06-08

申请号：US16933086

申请日：2020-07-20

Applicant: Nokia Solutions and Networks Oy

Inventor： Chenhui Ye ,  Xiaofeng Hu ,  Kaibin Zhang

IPC: H04B10/27 ,  H04Q11/00

Abstract: Embodiments of the present disclosure relate to a method, a device, an apparatus for optical communication and computer-readable medium. The method comprises receiving, at an optical line terminal, an access request from a first optical network unit; in accordance with a determination that the first optical network unit is not registered at the optical line terminal, obtaining a first parameter set from the first optical network unit, and updating an association relationship between a distorted signal received at the optical line terminal and an original signal recovered from the distorted signal, based on the first parameter set. In this way, regarding different levels of optical signal quality attenuation caused by optical network units with different channel responses in one passive optical network, a unified signal compensation scheme can be provided for all optical network units, in order to mitigate transmission distortion of signals on an uplink of optical communication and significantly reduce configuration overheads in practice.

公开(公告)号：US20210105548A1

公开(公告)日：2021-04-08

申请号：US16975934

申请日：2019-02-27

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Chenhui Ye ,  Dongxu Zhang ,  Xiaofeng Hu ,  Kaibin Zhang

IPC: H04Q11/00 ,  H04B10/291

Abstract: Embodiments of the present disclosure relate to method, device and computer-readable medium for communication in a Passive Optical Network (PON). The method comprises receiving a first sequence from an Optical Network Unit (ONU) the first sequence being transmitted by using a reference sequence shared with the Optical Line Terminal (OLT) based on a first set of parameters associated with an uplink transmission from the ONU to the OLT; determining parameter adjustment information based on the first sequence and the reference sequence, the parameter adjustment information being used to adjust at least one parameter in the first set of parameters associated with the uplink transmission, to cause transmission property of the uplink to satisfy a predetermined condition; and transmitting the parameter adjustment information to the ONU.