SIP signaling cut-through

摘要

Systems and methods are provided for reducing power consumption in a mobile device having a Internet Protocol (IP) multimedia subsystem (IMS) framework for supporting, e.g., Voice over Long Term Evolution (VoLTE), IP Voice over High Speed Packet Access (VoHSPA), and Rich Communication Suite (RCS) features. To support such functionality in a mobile device while reducing power consumption, a local Session Initiation Protocol (SIP) agent is implemented in, e.g., a wireless modem, of the mobile device to which SIP-related signaling can be redirected, and at which SIP-related processing can be performed when an application processor (AP) Of the mobile device is in sleep mode, thereby negating a need to wake up the AP to handle such functionality.

主权项

1. A method, comprising:
receiving Internet Protocol multimedia subsystem (IMS) parameters at a local Session Initiation Protocol (SIP) agent from an application processor (AP) prior to the AP transitioning into sleep mode; redirecting, via a hook associated with the local SIP agent at an IMS packet data network (PDN) module bridging the AP and a wireless modem, SIP signaling to the local SIP agent while the AP is in sleep mode; and processing the SIP signaling at the local SIP agent utilizing the received IMS parameters while the AP is in sleep mode.