PROXIMITY INDICATION USING OUT-OF-BAND LINKS

摘要

Management of user equipment (UE) proximity indications to femto access points is provided using out-of-band (OOB) signals. To obtain OOB identification information on the femto access point, the UE determines the OOB identification information when in proximity to cells neighboring the femto access point. This OOB information is stored in a search information database (SID) of the UE and related to in-band information on the femto access point. To later determine proximity to the femto access point, in response to detecting its presence within a fingerprint area around the femto access point, a search for the femto access point is triggered using the OOB radio resources and OOB identification information associated with the femto access point in the SID. When the UE detects the femto access point using the OOB radio resources, the UE transmits a proximity indication to its serving base station over the in-band radio link.