Method and user equipment in a communication network
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJari Vikberg, Kimmo Hiltunen, Tomas Nylander, Hakan Olofsson
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Abstract
The invention relates to a user equipment (600) comprising a receiving unit (606) arranged to receive, when the user equipment (600) is in idle mode, data from a base station indicating an identification of a second cell of a second frequency, a control unit (610) arranged to determine, based on the received data, that the user equipment (600) is not allowed access to the second cell, and, upon determination that the user equipment is not allowed access to the second cell, to perform a cell selection process to change from a present camped first cell of a first frequency to a third cell of a third frequency being different than the first frequency.
Claims17
A method in a user equipment camped on a first cell that uses a first frequency, the method comprising:
- receiving, from a base station, data identifying a second cell using a second frequency, wherein the second frequency is the same frequency as the first frequency,
- determining that the user equipment is not allowed to access the second cell;
- performing, upon determination that the user equipment is not allowed to access the second cell, a cell selection process to find a third cell to access, using a third frequency that differs from the first frequency, to avoid interference between the user equipment and the second cell.
The method of 1, wherein the cell selection process comprises changing to a different radio access technology.
The method of 1, further comprising:
- receiving a rejection message when the user equipment is in active mode, the rejection message indicating that the user equipment is not allowed to access the second cell;
- and
- updating a list of cells indicating accessibility with an identification of the second cell.
A user equipment comprising:
- a receiving unit arranged to receive, when the user equipment is in idle mode, data from a base station identifying a second cell using a second frequency;
- a control unit arranged to determine, based on the received data, that the user equipment is not allowed access to the second cell, and, upon determination that the user equipment is not allowed access to the second cell, to perform a cell selection process to change from a present camped first cell of a first frequency to a third cell, the third cell using a third frequency that differs from the first frequency.
Dependencies are inferred from the claim text.