Patent ID: 9288728
Filing Date: 2016-03-15
CPC Classification: H04W

Claim Text:
1. A computer-implemented method comprising: receiving, at a user entity (UE) that is configured to communicate with a first access network under a first protocol and to communicate with a second access network under a second protocol, a message from the first access network that indicates to scan one or more channels of the second access network that are identified in a predetermined channel list, wherein the UE is further configured for circuit-switched fallback (CSFB) from the first access network to the second access network; before scanning the one or more channels of the second access network that are identified in a predetermined channel list, performing a scan to detect one or more channels that are available for communication under the second protocol, wherein at least a first channel that is available for communication under the second protocol is detected during the scan, and wherein performing the scan to detect one or more channels that are available for communication under the second protocol comprises scanning one or more unlisted channels that are not included on the predetermined channel list; determining, by the UE, that the first channel is an unlisted channel that is not included on the predetermined channel list, wherein a first base station in the second access network operates on the first channel, wherein the first base station is a femtocell; responsive to determining that the first channel is unlisted, the UE sending, to the first access network, a message that identifies the first channel of the second access network, wherein the message that identifies the first channel of the second access network facilitates temporary re-provisioning of the femtocell such that at least one channel operated by the femtocell is detectable for addition to the predetermined channel list; and after sending the message that identifies the first channel of the second access network, receiving a message from the first access network that comprises an updated predetermined channel list, wherein the updated predetermined channel list comprises at least one channel operated by the femtocell.