Load distribution in CS fallback

摘要

Described embodiments provide a method of a circuit switched (CS) fallback procedure at a first network providing only a packet switched (PS) service. A CS fallback procedure may be initiated upon a receipt of a call associated with a CS service. One of carriers assigned to a second network that provides a circuit switched (CS) service may be selected. Then, a second network cell mapped to a serving cell of the first network and using the selected carrier may be selected as a target cell. The user equipment may be handed over o to the selected second network cell in order to provide a requested CS service.

主权项

1. A method of a circuit switched (CS) fallback procedure at a first network providing only a packet switched (PS) service, the method comprising:
initiating a CS fallback procedure upon a receipt of a call associated with a CS service; selecting one of carriers assigned to a second network that provides a circuit switched (CS) service; determining, as a target cell, a second network cell mapped to a serving cell of the first network and using the selected carrier; and performing handover of the user equipment to the selected second network cell to provide a requested CS service, wherein the selecting one of the carriers includes using an equation of: X mod N, where Carrieri=X mod N, where Carrieri denotes an identification number of a carrier, X denotes a total number of a CS fallback procedure performed and N denotes a total number of carriers allocated to the second network.