Patent ID: 8488514

Claim:
A user equipment (UE) for use in a wireless communication system including an access node and a relay node, wherein the access node and the relay node are configured to establish a backhaul link, and wherein the UE and the relay node are configured to establish an access link, the UE comprising: a processor configured to: determine a composite, end-to-end signal to noise ratio, SNR, based at least in part on an SNR of the backhaul link and an SNR of the access link, and determine whether or not to perform a mobility procedure, based at least in part on the composite, end-to-end SNR, wherein the composite end-to-end SNR is represented by Equation 1: SNR end-to-end =1/(1/SNR access — link +1/SNR backhaul — link ) (Equation 1), wherein SNR access — link is the SNR of the access link, and SNR backhaul — link is the SNR of the backhaul link, and wherein the mobility procedure is one of a cell selection procedure, a reselection procedure, and a handover procedure.