Patent ID: 9002315
Filing Date: 2015-04-07
Classification: H04W

Abstract:
1. A method to enable autonomous change of User Equipment circuit-switched (CS)/packet-switched (PS) mode and access stratum reselection priorities for facilitating emergency call service in a wireless communication system, the method comprising: modifying a configuration parameter of a user equipment, wherein the configuration parameter is related to at least one of: network selection, cell selection or reselection or service selection within the wireless communication system, and wherein a modified configuration parameter results in a preference by the user equipment, wherein the preference by the user equipment is for a network, cell or service configured to support emergency calls by the user equipment, wherein the configuration parameter includes information indicative of a plurality of cell reselection priorities, wherein the wireless communication system includes a plurality of networks wherein at least one of the plurality of networks is an original serving network of the user equipment and at least another of the plurality of networks is a network configured to offer emergency call service to the user equipment; prioritizing a network domain over another based, at least, on the modification of the configuration parameter; and prioritizing the network configured to offer emergency call service to the user equipment over the original serving network of the user equipment based, at least, on the modifying the configuration parameter.