Integrated Service Paging for Radio Device Energy Optimization
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Solution Overview
Problem
Existing paging mechanisms in radio communication networks lead to excessive energy consumption and resource usage, particularly in devices that need to frequently send and receive data, even when there is no actual content to deliver, which is problematic for devices requiring long battery life like M2M sensors.
Innovation Solution
An integrated service paging system using an intermediary server or node in the communication network that allows radio devices to request polling on their behalf, with the results provided in a bit pattern indicating urgent vs. non-urgent messages, enabling devices to decide when to wake up and conserve energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal frequently sends and receives data to and from the network to check for incoming messages, then the terminal can detect incoming traffic promptly, but the terminal must be in active state most of the time which increases energy consumption and reduces standby time
Solution Approach 1:
The terminal switches between active and sleep states periodically, checking for incoming messages only at specific paging occasions rather than continuously. The network sends paging messages at predetermined intervals to notify the terminal of incoming traffic, allowing the terminal to remain in low-power sleep state most of the time while still detecting messages reliably.
Solution Approach 2:
The network acts as an intermediary by monitoring for incoming messages and notifying the terminal through paging channels. Instead of the terminal continuously polling or staying active to detect messages, the network intermediary proactively informs the terminal when messages are available, reducing the terminal's energy consumption while maintaining detection capability.
2Loss of information
If the terminal sends packets to multiple services to poll for incoming data, then the terminal can check for e-mail, IM messages, and web updates, but this consumes a lot of network resources and causes network capacity problems
Solution Approach 1:
Multiple service polling operations are merged into a single unified paging mechanism. Instead of the terminal sending separate packets to each service (e-mail, IM, web services) to check for incoming data, the network consolidates these checks and sends a single paging notification to the terminal when any service has incoming traffic, significantly reducing network resource consumption while maintaining complete detection of incoming messages across all services.
Solution Approach 2:
The network serves as an intermediary that consolidates polling for multiple services. Rather than the terminal independently querying each service, the network monitors multiple services and notifies the terminal through a unified paging channel when any service has incoming data, reducing the number of packets sent and optimizing network resource usage.
3Reliability
If existing paging mechanisms are used, then the network can inform the terminal of incoming IP packets, but the paging mechanism is only applicable when there is a peer that has sent a packet to the terminal, requiring the device to send requests or keep-alive messages
Solution Approach 1:
The network acts as an intermediary that can notify the terminal of incoming packets even when the terminal is in sleep mode and cannot maintain continuous end-to-end connectivity. The network monitors for packets destined to the terminal and sends paging notifications at predetermined occasions, eliminating the need for the terminal to send frequent requests or keep-alive messages to maintain connectivity awareness.
Solution Approach 2:
The network performs preliminary monitoring and notification actions before the terminal needs to be fully active. By checking for incoming packets and preparing paging notifications in advance at the network side, the system ensures connectivity reliability without requiring the energy-intensive continuous monitoring or request-sending behavior at the terminal.
Data Source
Figure 1~2b
Figure 3~4b
Figure 5a~6
AI summary
The present disclosure relates to a method performed in a network node (100)in a communication network (1). The method comprises receiving instructions to monitor whether a first service (30) is sending a message intended for a radio device (200). The method also comprises monitoring the first service, in accordance with the received instructions, in order to obtain information relating to whether the service is sending a message intended for the radio device. The method also comprises processing the obtained information such that a decision can be made whether to wake up the radio device. The present disclosure also relates to a network node and to a radio device.