Assisting return to a first network from a second network after performance of a circuit switched fallback procedure

摘要

A method for assisting a wireless communication device to return to a first network from a second network subsequent to termination of a voice call for which a Circuit Switched Fallback procedure was performed to transition from the first network to the second network for servicing of the voice call is provided. The method can include preventing transmission of a data flow for a data service after termination of the voice call. The method can further include searching for the first network while transmission of the data flow is prevented. If the first network is found, the method can additionally include reverting to the first network and servicing the data service on the first network. If the first network is not found, the method can also include remaining on the second network and servicing the data service on the second network.

主权项

1. A method for assisting a wireless communication device to return to a Long Term Evolution (LTE) network from a legacy network, the method comprising:
participating in a Circuit Switched Fallback (CSFB) procedure to transition the wireless communication device from the LTE network to a legacy network for servicing of a voice call, wherein the legacy network has a circuit switched domain and the voice call is handled by the circuit switched domain of the legacy network; determining, by a processor, whether a data service is active on the wireless communication device after the voice call has terminated; pausing the data service for a predetermined period of time if it is determined that the data service is active; blocking the data service for the predetermined period of time if it is determined that the data service is not active; searching for the LTE network during the predetermined period of time for which the data service is paused or for which the data service is blocked; reverting to the LTE network and servicing the data service on the LTE network if the LTE network is found within the predetermined period of time; and servicing the data service on the legacy network if the LTE network is not found within the predetermined period of time.