Measurement control for handover from one radio access technology to another

摘要

A method is provided for measuring at least one radio condition of each of a plurality of radio access technologies (RATs). The method includes specifying a sequence of the RATs, and measuring at least one radio condition of a first RAT in the sequence before measuring at least one radio condition of a second RAT in the sequence.

主权项

1. A method of selecting radio access technologies (RATs) to be used by a user equipment for gaining network access, wherein each RAT provides radio access to a network, the method comprising:
receiving, by the user equipment over a radio link, a first measurement sequence of RATs specified at a network component; obtaining, at the user equipment, a second measurement sequence of RATs specified by a user selection, wherein the user selection specifies an order for measuring the RATs in the second measurement sequence; measuring, by the user equipment, at least one radio condition of RATs in an order specified by one of the first measurement sequence or the second measurement sequence; stopping the measuring of radio conditions of the RATs when a quality of a measured radio condition associated with a RAT exceeds a predetermined threshold value; and selecting the RAT to be used by the user equipment for accessing the network, wherein if the quality of the measured radio condition does not exceed the predetermined threshold value, the user equipment continues the measuring of radio conditions even when the quality of the measured radio condition is sufficient to establish a connection to the network.