Alcatel Lucent

Frederic Deville

Robert Atmaram Soni

Jean-Michel Pugeat

Gopal N Kumar

Thierry Billon

Richard L Davies

Patrick Willemain

Marco Meinero

Richard Llewelyn Davies

Jean-Michel Pegeat

Victor M Da Silva

The present invention relates to a method for discovering neighbor cells (NC) in a radio cellular network (NTW) comprising cells, each served by a controller (eNB), the method comprising, with respect to a controller (eNB) serving a cell (C): (a): selecting a frequency (f) in a frequency list, each frequency being associated with a priority (Prio), a target value (TV) and a counter (Count), and wherein said frequency (f) is selected in the frequency list according to its priority (Prio); (b): selecting a terminal (UE) located in the cell (C) and connected with the controller (eNB); (c): sending a control message to the selected terminal (UE), said control message comprising a request to perform radio measurements relating to neighbor cells (NC) of the cell (C), for the selected frequency (f); (d): incrementing the counter (Count) associated with the frequency (f); (e): if the counter (Count) is equal to the target value (TV) for the selected frequency (f), then deleting the selected frequency (f) from the frequency list; repeating steps (a), (b), (c), (d) and (e) during a predetermined time (Tc) or until the frequency list if empty.

Method for discovering neighbor cells in a radio cellular network

The present invention provides a method of assigning cell identifiers to a plurality of cells. The method includes detecting cells within a selected distance from a first cell in the plurality of cells. The distance is selected to encompass portions of neighbor cells of the first cell and neighbor-of-neighbor cells of the first cell. The method also includes assigning a first cell identifier to the first cell. The first cell identifier is different than cell identifiers assigned to the cells detected within the selected distance from the first cell.

Distributed allocation of physical cell identifiers

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Nozay, France

Frederic Deville