Patent ID: 8937861
Filing Date: 2015-01-20
Classification: H04W

Abstract:
1. A method of operating a wireless access node to add different channel pseudo-noise (PN) codes of different carriers to a neighbor list for a wireless communication device communicating over a first carrier frequency provided by the wireless access node, the method comprising: comparing a strength of a pilot signal of an active set to a pilot threshold; when the strength of the pilot signal of the active set falls below the pilot threshold, comparing first communication loading on a second carrier frequency of the wireless access node to a first loading threshold; starting a loading timer if the first communication loading on the second carrier frequency of the wireless access node falls below the first loading threshold; during the loading timer, comparing second communication loading on hand down carriers of a highest priority neighbor to a second loading threshold; if the second communication loading on at least one of the hand down carriers of the highest priority neighbor falls below the second loading threshold during the loading timer, then adding a different channel PN code of the second carrier frequency of the wireless access node to the neighbor list for the wireless communication device; and transmitting the neighbor list having the different channel PN code of the second carrier frequency for delivery to the wireless communication device.