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1. (WO2017157585) CELLULAR TELECOMMUNICATIONS NETWORK

Pub. No.:    WO/2017/157585    International Application No.:    PCT/EP2017/052738
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Thu Feb 09 00:59:59 CET 2017
IPC: H04W 16/10
H04W 24/02
H04W 84/04
H04W 84/12
Applicants: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
Inventors: MACKENZIE, Richard,
FITCH, Michael,
Title: CELLULAR TELECOMMUNICATIONS NETWORK
Abstract:
The invention relates to a first base station, and a method of operating a first base station in a cellular telecommunications network, the cellular telecommunications network further including a second base station, in order to autonomously create a detection scenario for a Physical Cell Identifier, PCI, conflict between the first and second base station, the method comprising the steps of: the first base station transmitting at a first maximum transmit power about a first coverage area for a first period of time; the first base station transmitting at a second maximum transmit power about a second coverage area for a second period of time, the second coverage area being larger than the first coverage area and the second period of time being shorter than the first period of time; and then the first base station returning to the first maximum transmit power. The invention also relates to a second base station, and a method of operating a first base station in a cellular telecommunications network, the cellular telecommunications network further including a second base station, the method comprising the steps of: the first base station discovering a second base station as a result of the second base station temporarily using an increased maximum transmit power and coverage area; the first base station identifying a Physical Cell Identifier, PCI, conflict in the cellular telecommunications network; and the first base station initiating a PCI conflict resolution process.