Radio link failure report extensions in mobile communication networks

A user equipment (UE), comprising:

• a measurement circuit that performs radio measurements of a serving cell and neighbor cells in a mobile communication network;
• a reporting circuit that evaluates a measurement reporting criteria and attempts to access the network and deliver a measurement report if the criteria is met;
• a failure detector that detects a radio link failure or a hand-over failure event;
• a radio resource control (RRC) management circuit that performs RRC reestablishment or RRC establishment for the UE to re-connect to the network upon detecting the failure event;
• and
• a transmitter that transmits a failure event report to the network, wherein the failure event report includes measurement state information that corresponds to the failure event, wherein the measurement state information comprises measurement and reporting parameters to indicate that the failure event is associated with which uplink channel including a random access channel (RACH) and at least one physical uplink channel.

A user equipment (UE), comprising:

• memory that contains a set of program instructions;
• and
• a processor that executes the set of program instructions and thereby configures the UE to perform the steps of:
• performing radio measurements of a serving cell and neighbor cells in a mobile communication network;
• evaluating a measurement reporting criteria and attempting to access the network to deliver a measurement report if the criteria is met;
• detecting a radio link failure or a hand-over failure event and reconnecting to the network by performing RRC reestablishment or RRC establishment with the network;
• and
• transmitting a failure event report to the network, wherein the failure event report includes measurement state information that corresponds to the failure event, wherein the measurement state information comprises measurement and reporting parameters to indicate that the failure event is associated with which uplink channel including a random access channel (RACH) and at least one physical uplink channel.