SIP Message Routing Between Application and Communication Processors

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Solution Overview

Problem

Mobile communication terminals face high power consumption when processing Session Initiation Protocol (SIP) messages without user input, as the Application Processor (AP) is activated to handle these messages, leading to increased energy usage.

Innovation Solution

The SIP protocol processing is shifted from the Application Processor (AP) to the Communication Processor (CP) when there is no user input, allowing the AP to remain dormant and reducing power consumption by enabling it only during user-initiated actions like voice calls.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the Application Processor (AP) is activated to handle SIP messages, then the terminal can process SIP protocol functions, but power consumption increases

Engineering Contradiction:

ImproveSIP message handling capabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent segments SIP protocol processing between two processors: the Application Processor (AP) handles user-initiated SIP messages, while the Communication Processor (CP) handles network-initiated SIP update requests. This segmentation allows the AP to remain dormant during automated updates, reducing power consumption while maintaining full SIP functionality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary mechanism where the CP acts as a mediator for handling SIP update request messages from the network. The CP receives, processes, and responds to these messages without requiring AP activation, effectively mediating between the network and the terminal's higher-level processing functions.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Use of energy by moving object

If the AP remains dormant to save power, then energy consumption is reduced, but the terminal cannot handle SIP messages without user input

Engineering Contradiction:

Improvepower consumptionVSAvoidSIP message processing capability

Core Design Contradiction:

Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The patent divides SIP message processing responsibilities between the AP and CP based on message type and initiation source. The CP is equipped with dedicated SIP update request handling capability, ensuring that automated network-initiated updates can be processed even when the AP is dormant, thus maintaining adaptability while saving power.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The CP performs self-service by autonomously handling SIP update request messages without requiring AP intervention. It can independently receive, process, and respond to these messages, enabling the terminal to maintain SIP functionality for automated updates while keeping the power-consuming AP dormant.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS9167523B2Method and apparatus for consuming low power by terminal in mobile communication system

Publication Date: 2015.10.20 SAMSUNG ELECTRONICS CO LTD

AI summary

A method for operating a terminal using reduced power consumption in a mobile communication system is provided. The method includes receiving a signal, determining whether the received signal corresponds to a Session Initiation Protocol (SIP) update request message, if the received signal corresponds to an SIP update request message, sending the SIP update request message to an SIP processor in a communication processor; and handling the SIP update request message by the SIP processor.