IMS High Latency Device IP Address Assignment
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Solution Overview
Problem
Current wireless communication networks, particularly LTE and IMS, face inefficiencies due to the lack of awareness about high latency user equipment (UE) in power saving mode, leading to unnecessary signaling and retransmissions, which wastes processing power and increases network load.
Innovation Solution
Implementing mechanisms for IMS to recognize high latency UE by assigning dedicated IP addresses, using explicit signaling indications, and negotiating active times and DRX cycles with the mobility management entity to minimize retransmissions and optimize network operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network continuously monitors and communicates with user equipment in power saving mode, then network responsiveness and service quality are improved, but network load and energy consumption increase
Solution Approach 1:
The patent implements periodic monitoring and communication at negotiated intervals rather than continuous monitoring. The network and UE agree on specific wake-up times and monitoring cycles, allowing the system to maintain reliability by periodically checking status while reducing energy consumption by remaining idle during non-monitoring periods.
Solution Approach 2:
The patent establishes monitoring parameters, wake-up times, and communication schedules in advance through negotiation between the network and UE before power saving mode is activated. This preliminary configuration allows the system to operate efficiently during power saving mode without requiring continuous real-time decisions, reducing network load while maintaining service quality.
2Reliability
If the network sends frequent status requests to user equipment, then service quality and responsiveness are improved, but signaling overhead and processing power are wasted
Solution Approach 1:
The patent replaces frequent status requests with periodic status exchanges at predetermined intervals. The network and UE negotiate monitoring cycles and wake-up times in advance, allowing status information to be exchanged only at necessary intervals rather than through continuous frequent requests, thereby reducing signaling overhead while maintaining service quality.
Solution Approach 2:
The patent enables the UE to autonomously manage its power saving state by locally determining when to wake up and when to remain in power saving mode based on pre-negotiated parameters. The UE can independently make decisions about status reporting without requiring constant network intervention, reducing processing power waste and signaling overhead while maintaining service quality.
3Speed
If the network implements continuous monitoring of user equipment, then service responsiveness is improved, but energy consumption and network load increase
Solution Approach 1:
The patent implements periodic monitoring at negotiated intervals rather than continuous monitoring. The network and UE agree on specific wake-up times and monitoring cycles, allowing the system to maintain responsiveness by periodically checking status while reducing energy consumption by remaining idle during non-monitoring periods.
Solution Approach 2:
The patent establishes monitoring parameters, wake-up times, and communication schedules in advance through negotiation between the network and UE before power saving mode is activated. This preliminary configuration allows the system to operate efficiently during power saving mode without requiring continuous real-time decisions, reducing energy consumption while maintaining service responsiveness.
Data Source
AI summary
Systems, methods, apparatuses, and computer program products for providing IMS level awareness of high latency device are provided. One method, when a UE attaches to EPC, receiving, at a network node, an indication that the UE is a high latency device. The method may also include assigning, to the UE, an IP address selected from a special IP address range that is designated specifically for high latency devices. When the UE performs IMS registration, the method may include determining that the UE is a high latency UE based on the UE's IP address provided with the IMS registration request and assigned during the EPC attach procedure.