Idle mode access through assisted discovery

摘要

One embodiment is directed to a method of cell selection/reselection. The method includes gathering discovery information of a secondary radio access technology (RAT) by listening to a single primary radio access technology (RAT). The method may further include performing cell selection/reselection using the discovery information.

主权项

1. A method, comprising:
gathering, by a multi-mode device, discovery information of a secondary radio access technology (RAT) by listening to a single primary RAT in idle mode, wherein the discovery information of the secondary RAT is gathered together with system information of the primary RAT, and wherein the gathering comprises gathering the discovery information from a dual mode home NodeB (HNB)/wireless local area network (WLAN) access point; performing cell selection and/or reselection using the discovery information without performing an independent cell search; pre-associating with the secondary RAT by using the discovery information gathered from the primary RAT; and powering off an interface used to communicate with the secondary RAT after pre-association, wherein the multi-mode device is informed when the interface used to communicate with the secondary RAT should be turned on, and wherein the system information of the primary RAT comprises a physical cell identity (PCI).