Passive Packet Switched Domain Activation via Call Setup
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Solution Overview
Problem
Current methods for deploying packet switched (PS) domain services, such as IMS services, require all participating terminals to activate the PS domain upon powering on, which is not feasible for all users and can disrupt user experience, as they cannot ensure if the opposite terminal has activated the PS domain, leading to service failures.
Innovation Solution
A method where a terminal can passively change the status of the PS domain by receiving a dual tone multi-frequency or call Setup message from another terminal, allowing it to activate the PS domain only when necessary, enabling PS domain-based services like IMS services to be deployed effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal activates the PS domain upon powering on to ensure service deployment, then the reliability of PS domain based services is improved, but the ease of operation deteriorates as users cannot control the activation
Solution Approach 1:
The terminal automatically activates the PS domain when it detects a service request requiring PS domain, without requiring user intervention. The terminal serves itself by monitoring incoming messages and autonomously making the activation decision based on service requirements, thus maintaining reliability while preserving user convenience.
Solution Approach 2:
The terminal performs PS domain activation in advance when a service request is detected, before the actual service transmission begins. This preliminary action ensures the PS domain is ready for service deployment while the user remains unaware of the technical process, maintaining both reliability and ease of operation.
2Reliability
If a terminal activates the PS domain upon powering on to ensure service deployment, then the reliability of PS domain based services is improved, but the loss of energy increases due to unnecessary activation
Solution Approach 1:
Instead of always activating the PS domain upon powering on, the terminal activates it only partially - specifically when and only when a service request requiring PS domain is detected. This avoids excessive activation and reduces energy consumption while maintaining service reliability when needed.
Solution Approach 2:
The terminal changes the activation parameter from a fixed state (always activate on power-on) to a dynamic state (activate only when service request detected). This parameter change allows the system to adapt to actual service needs, reducing unnecessary energy consumption while ensuring service reliability.
3Ease of operation
If a terminal waits for the opposite terminal to activate the PS domain, then the ease of operation is improved, but the reliability of service transmission deteriorates
Solution Approach 1:
The terminal monitors incoming messages from the opposite terminal to detect service requests. This feedback mechanism allows the terminal to understand when the opposite terminal needs PS domain services and automatically activate the PS domain accordingly, ensuring both ease of operation and service transmission reliability.
Solution Approach 2:
Upon detecting a service request in an incoming message, the terminal proactively activates the PS domain before the service transmission begins. This preliminary action ensures the PS domain is ready for service deployment, preventing transmission failures while maintaining automatic service initiation.
4Productivity
If all terminals activate the PS domain upon powering on, then the productivity of service deployment is improved, but the loss of energy across the network increases
Solution Approach 1:
The terminal activates the PS domain only when a service request requiring PS domain is detected, rather than always activating it upon powering on. This partial activation approach maintains service deployment productivity for needed services while significantly reducing network-wide energy consumption from unnecessary activations.
Solution Approach 2:
The activation parameter is changed from a universal fixed state (all terminals always activate) to a selective dynamic state (terminal activates only when service request detected). This parameter change optimizes the balance between service deployment productivity and network energy consumption.
Data Source
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AI summary
The present invention provides a method, terminal and network devices for changing the status of a packet switched domain. The method includes: receiving an instruction, for changing the status of a packet switched domain, sent from a first terminal, wherein the changing of the status of the packet switched domain includes activating the packet switched domain or modifying a parameter of the packet switched domain where a second terminal is currently located; and changing the status of the packet switched domain according to the instruction. With the technical solution according to embodiments of the present invention, the terminal can activate the PS domain passively to deploy PS domain based service.