Patent ID: 8787901
Filing Date: 2014-07-22
Classification: H04W

Abstract:
1. A method performed by a trace entity of a mobile network for trace data collection in the mobile network, the method comprising: starting, by the trace entity, the trace data collection upon detection of an activity related to a wireless user equipment (UE), the trace data collection comprising recording of trace data associated with signaling messages sent from and/or received at the trace entity, wherein the signaling messages are related to the wireless user equipment; determining, by the trace entity, at a predetermined point in time after the trace data collection has started, whether tracing has been activated at the trace entity for the wireless user equipment, the tracing being activated at the trace entity for the wireless user equipment when the trace entity confirms that the wireless user equipment meets tracing requirements set forth in a trace configuration or when the trace entity receives a trace trigger related to the wireless user equipment from an upstream network entity; continuing, by the trace entity, the trace data collection when it is determined that the tracing has been activated at the trace entity for the wireless user equipment; and stopping, by the trace entity, the trace data collection and discarding, by the trace entity, the recorded trace data collection when it is determined that the tracing has not been activated at the trace entity for the wireless user equipment, wherein the trace entity is a network entity of the mobile network or the wireless user equipment that can perform tracing, and wherein the trace data collection is started by the trace entity prior to the trace entity determining whether or not the tracing has been activated at the trace entity for the wireless user equipment and prior to the tracing being activated at the trace entity for the wireless user equipment.