Patent ID: 9125120
Filing Date: 2015-09-01
Classification: H04W

Abstract:
1. An apparatus, comprising: an LTE modem, configured to access a first wireless network, wherein said first wireless network comports with LTE radio access technology (RAT) standards; and a code division multiple access (CDMA) modem, operationally coupled to said LTE modem, coupled to and configured to access a second wireless network, wherein said second wireless network comports with one or more CDMA-based RAT standards, said CDMA modem comprising: an inter-radio access technology application programming interface element, configured to send/receive a plurality of IRAT messages via a plurality of function calls to/from said LTE modem, wherein said IRAT messages are compatible with said first wireless network and an interface requirement for said LTE modem, and wherein said plurality of function calls comprises system acquisition for said second wireless network, second wireless network data stack management, first wireless network system handoff, and connection management, and wherein one of said plurality of function calls comprises a request initiated from said LTE modem to request operations only over a CDMA network, and wherein said request directs operation of both circuit voice service and packet service over said CDMA network; and an inter-process communication module, coupled to said IRAT API element, configured to generalize said plurality of function calls to enable said CDMA modem to interoperate with said LTE modem, wherein said inter-process communication module is coupled to said LTE modem through an application processor.