公开(公告)号：US10034180B2

公开(公告)日：2018-07-24

申请号：US15112859

申请日：2014-01-24

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Seppo Olavi Hamalainen ,  Petri Eskelinen ,  Henrik Martikainen ,  Bernhard Wegmann ,  Krzysztof Kordybach

IPC: H04B1/00 ,  H04B15/00 ,  H04W16/28 ,  H04W24/02 ,  H04W24/08 ,  H01Q1/24 ,  H01Q3/24

Abstract: There is provided a method and an apparatus for determining an adjustment of a tilt angle (α1, α2) for a beam emitted from an antenna (130) of a base station (100) which is serving a vertically sectorized cell (150) of a cellular radio telecommunication network. The method comprises (a) configuring user equipments (162, 164) being located in the vertically sectorized cell (150) with dedicated measurements, (b) collecting the dedicated measurements for a specific time interval, (c) obtaining a spatial user equipment distribution among a first sector (152) of the cell (150) and a second sector (154) of the cell (150) based on the collected dedicated measurements, (d) ascertaining an optimized spatial overlap region between the first sector (152) and the second sector (154) based on the obtained spatial user equipment distribution, and (e) determining the adjustment of the tilt angle (α1, α2) based on the ascertained optimized spatial overlap region.

公开(公告)号：US09973941B2

公开(公告)日：2018-05-15

申请号：US14778360

申请日：2013-03-19

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Petri Eskelinen ,  Kari Aho ,  Henrik Martikainen ,  Seppo Olavi Hamalainen

IPC: H04W16/28 ,  H04W24/02 ,  H04W28/08 ,  H04W16/30

CPC classification number: H04W16/28 ,  H04W16/30 ,  H04W24/02 ,  H04W28/085

Abstract: Systems and techniques for antenna optimization are described. Information such as statistics relating to conditions are collected, and evaluated against specified criteria in an iterative process. An antenna tilt decision is made based on the evaluation and validated to determine if it should be retained or repeated, or if the tilt should be returned to a previous state.