Patent ID: 8565163
Filing Date: 2013-10-22
Classification: H04W

Abstract:
1. A method for controlling switching of mobile user equipment, characterized in a dedicated switch control module SCM is provided, the method comprising steps of: a. listing, into an activation set by a UE, an identification of a base station of a second communication system of which a currently detected signal quality reaches that of a first communication system; deciding whether there is at least a base station of the second communication system in the activation set, of which the signal quality is better than that of the signal of the base station of the first communication system and the duration of the signal quality reaches a half of a predetermined trigger period, if yes, then performing step b; otherwise continuing to detect the signal periodically and returning to step a; b. deciding whether the signal quality of the base station of the second communication system detected by the SCM is better than that of the signal of the base station of the first communication system and whether the duration of the signal quality reaches a specified trigger period, if yes, then transferring all switch control rights from a terminal management module to the SCM, preparing buffer resources by the SCM and performing step C; otherwise continuing to detect the signal periodically and returning to step b; c. triggering and completing the switch by the SCM, releasing the occupied public resources in time by the SCM after the switch is finished, and relieving the control for all the modules related to the switch, wherein said step a generally comprises: a1. detecting by the UE the signal of the base station of the second communication system, saving into the activation set the identification of the base station of the second communication system of which the signal quality is higher than that of the first communication system, if there is already at least an identification of the base station of the second communication system in the activation set and the signal quality of the base station of the second communication system is higher than that of the signal of the first communication system and the duration reaches a half of a specified trigger period, then triggering the SCM to go into a predetermined SCM flow; a2. informing the SCM about the obtained address of the base station of the second communication system which has the optimum signal, and selecting the address of the base station of the second communication system which has the optimum signal by the SCM; a3. receiving a downlink signal of said base station in step a2 by the SCM, keeping a record and making a comparison, deciding whether the signal keeps good or is strengthened continuously, if yes, then processing step a4; otherwise returning to step a2; a4. informing the base station of the second communication system which has the optimum signal to reserve a switch buffer by the SCM, beginning to monitor the switch buffer of the UE and the operation of the switch control processor in the UE by the SCM, and recording the buffer size and to what extent that the processor operation is busy.