Method for load balancing of devices in idle mode
AssigneeTelefonaktiebolaget LM Ericsson
InventorsMuhammad Kazmi, Gabor Fodor
Life of this patent
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Abstract
The invention discloses a method for a cellular communications system, in which there is a first plurality of cells and a second plurality of base stations, each base station controlling the traffic to and from user terminals in a cell. User terminals can assume an idle mode, where a user terminal when in an idle mode performs cell reselection, comprising an evaluation of the cells which are available to the user terminal. The base stations of a number of cells in the system transmit a set of reselection probabilities, each probability in said set being the probability with which a terminal when in idle mode may carry out a reselection from its present cell to the cell to which the probability refers.
Claims17
A method for use in a cellular wireless communications system, in which system there is a first plurality of cells and a second plurality of base stations, with each base station controlling the traffic to and from user terminals in a cell, and in which system user terminals can assume an idle mode, where a user terminal when in an idle mode may perform a cell reselection procedure, comprising:
- evaluating different cells which are available to the user terminal;
- and
- receiving messages from the base stations of a number of cells in the system, the messages comprising a set of reselection probabilities, each probability in said set being the probability with which a terminal when in idle mode may carry out a reselection from its present cell to the cell to which the probability refers.
A base station for use in a cellular-wireless communications system, in which system there is a first plurality of cells, with a base station controlling the traffic to and from user terminals in a cell, and in which system user terminals can assume an idle mode, where a user terminal when in an idle mode may perform a cell reselection procedure, comprising:
- means for determining a set of reselection probabilities, each probability in said set being the probability with which a terminal when in idle mode may carry out a reselection from its present cell to the cell to which the probability refers;
- and
- means for transmitting the set of reselection probabilities to the user terminals.
A user terminal for use in a cellular wireless communications system, in which system there is a first plurality of cells and a second plurality of base stations, with each base station controlling the traffic to and from user terminals in a cell, the user terminal being able to assume an idle mode, said user terminal being equipped with means for, when in its idle mode, performing a cell reselection procedure comprising an evaluation of the different cells which are available to the user terminal the user terminal comprising:
- means for receiving a set of reselection probabilities, each probability in said set being the probability with which the terminal when in idle mode may carry out a reselection from its present cell to the cell to which the probability refers;
- and
- using the set of reselection possibilities.
Dependencies are inferred from the claim text.