Method and apparatus for frequency access restriction in cellular communications
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorAnders Dahlén
Life of this patent
Estimating the term…
Abstract
A Network node provides information to a base station indicating a list of forbidden frequency from which the base station may or may not offer services. The base station checks the received list of forbidden frequencies when considering whether to provide service to user equipments from a new tracking area or a certain access technology. The base may also transmit a list of allowed frequencies or the list of forbidden frequencies to user equipments to be used thereof. By introducing the possibility to set an amount of frequencies as forbidden in the area and access restriction information of user equipments, operators would be able to offer services like home base station in a simple way to customers.
Claims21
A method in a first base station supporting a first cell for restricting frequency access in a wireless communication system having a plurality of base stations, comprising:
- receiving, from a network node, a list of forbidden frequencies related to a mobile station, wherein the list of forbidden frequencies indicates frequencies that the mobile station is not allowed to use for cell reselection to neighbor cells;
- and
- transmitting, to the mobile station, information indicating allowed frequencies to be used by the mobile station in idle state when performing cell reselection, wherein the allowed frequencies are identified by the first base station based on the list of forbidden frequencies, wherein at least one of the allowed frequencies identified based on the list of forbidden frequencies is to be used by the mobile station for performing a cell search on neighbor cells of the first cell and for measuring cell-specific information on the searched neighbor cells, and wherein only the allowed frequencies are to be used by the mobile station for cell reselection evaluation.
A base station for restricting frequency access in a wireless communication system, wherein said base station is adapted to support a first cell and comprises:
- a radio transceiver;
- a network interface adapted to receive from a network node a list of forbidden frequencies related to a mobile station, wherein the list of forbidden frequencies indicates frequencies that the mobile station is not allowed to use for cell reselection to neighbor cells;
- a controller, coupled to said transceiver and interface, and adapted to provide the mobile station with information indicating allowed frequencies to be used in idle state when performing cell reselection, wherein the allowed frequencies are identified by the first base station based on the list of forbidden frequencies, wherein at least one of the allowed frequencies identified based on the list of forbidden frequencies is to be used by the mobile station for performing a cell search on neighbor cells of the first cell and for measuring cell-specific information on the searched neighbor cells, and wherein only the allowed frequencies are to be used by the mobile station for cell reselection evaluation.
Dependencies are inferred from the claim text.