公开(公告)号：US20210184752A1

公开(公告)日：2021-06-17

申请号：US16771154

申请日：2017-12-28

Applicant: Nokia Solutions and Networks Oy

Inventor： Zhijun LIAO ,  Liang XING ,  Junjie ZENG ,  Shenglin SHI

IPC: H04B7/08 ,  H04B7/0413 ,  H04B7/06 ,  H04L25/02

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for signal detection in a MIMO communication system. A receiver device according to an embodiment of the present disclosure comprises a remote unit and a baseband unit. The remote radio unit is configured to receive a first set of signals from a first number of receiving antennas, and the baseband unit comprises: an interfacing unit, configured to obtain the first set of signals from the remote radio unit; a beamforming unit, configured to generate a second set of signals associated with a second number of virtual antennas by performing receiving beamforming for the obtained first set of signals, the second number being less than the first number; and a detecting unit, configured to detect the second set of signals generated by the beamforming unit. Embodiments of the present disclosure may reduce complexity of signal detection and cost of implementation.

公开(公告)号：US20200314706A1

公开(公告)日：2020-10-01

申请号：US16652834

申请日：2017-10-20

Applicant: Nokia Solutions and Networks Oy

Inventor： Liang XING ,  Richa GUPTA ,  Suresh KALYANASUNDARAM

IPC: H04W36/00 ,  H04B7/024 ,  H04W36/30

Abstract: Methods and apparatus for realizing dynamic point selection improve the cell-edge throughput and geometric mean of release 8/9 UEs. The method comprises a step of receiving estimated channel quality reported by all the TPs in the CoMP set, a step of switching the serving TP for the UEs based on the estimated channel quality and/or cell load, a step of forwarding the scheduled data from the primary TP to the serving TP, a step of separately transmitting PDCCH to the UEs by the primary TP and transmitting PDSCH to the UEs by the serving TP. the implementation of the method and apparatus improves the cell-edge throughput and geometric mean of UE throughput by serving UEs instantaneously from the cell that provides better throughput accounting for fast time-scale channel fluctuations and/or load. It helps in reducing interference due to data getting drained faster when users are served from cells with better channel conditions.