Dynamic network cell reselection after a failed handover

摘要

Apparatus and methods of performing a network cell reselection for a mobile device after a handover attempt fails. Initially, a handover is attempted for the mobile device in a radio resource control (RRC) connected mode from a serving network base station to a target network base station. Next a failure condition associated with the handover attempt is identified by the mobile device. In one scenario, the failure condition is identified in response to the mobile device receiving an RRC connection release message from its serving network base station. In another scenario, the failure condition is identified when the mobile device detects a radio link failure event. Thereafter, the mobile device performs a network scan to identify any available network base stations for the network cell reselection. Subsequently, the mobile device attaches to a preferred network base station of the identified available network base stations to complete the network cell reselection.

主权项

1. A method of performing a cell reselection for a mobile device, the method comprising:
by the mobile device: attempting a handover from a serving base station to a first neighbor base station; receiving, from the serving base station during the handover attempt, a connection release message, wherein the connection release message is associated with an expiry of a mobile device data inactivity timer; identifying receipt of the connection release message during the handover attempt as causing the handover attempt to fail; performing, in response to the identifying, a network scan to determine a second neighbor base station for a cell reselection attempt; and attaching to the second neighbor base station.