Group Paging in MTC Networks via DRX Wakeup
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Solution Overview
Problem
Machine Type Communication (MTC) networks face congestion due to the need to transmit the same message multiple times to specific terminals, which is inefficient and can lead to network congestion.
Innovation Solution
A method for grouping communication terminals in MTC networks, allowing a single message to be transmitted to multiple terminals simultaneously by switching to a wakeup state during discontinuous reception (DRX) mode and analyzing the validity of group paging messages, enabling efficient message delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the paging scheme is used to transmit messages to specific terminals, then network congestion is reduced compared to broadcasting, but when the number of specific terminals is large, the same message must be transmitted multiple times which increases network traffic
Solution Approach 1:
The patent merges multiple individual paging messages into a single group paging message that can address multiple specific terminals simultaneously. By combining the messaging function for multiple terminals into one unified message structure, the system achieves both targeted delivery (avoiding broadcast congestion) and efficient multi-terminal communication (avoiding repeated transmissions).
2Reliability
If terminals continuously monitor paging messages to ensure timely reception, then message delivery reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic monitoring where terminals switch between idle state and awake state at predetermined intervals. During idle periods, terminals consume minimal power; during awake periods, they monitor for group paging messages. This periodic action ensures reliable message reception while significantly reducing average power consumption compared to continuous monitoring.
Solution Approach 2:
The group paging message acts as an intermediary that carries information for multiple terminals in a single transmission. Terminals can determine relevance of the message through group identifiers without needing to continuously decode all paging messages, enabling efficient periodic checking with reliable delivery.
3Use of energy by moving object
If terminals remain in idle state to save power, then energy consumption is reduced, but response time to receive messages increases
Solution Approach 1:
The system preliminarily schedules group paging message transmissions at predetermined times that align with terminal awake periods. Terminals know in advance when to wake up based on scheduled transmission times, ensuring they are awake to receive messages without needing to continuously monitor. This preliminary scheduling achieves both power savings and timely response.
Solution Approach 2:
Both the terminal monitoring and the network message transmission operate periodically at synchronized intervals. This periodic coordination ensures that when terminals wake up, messages are ready to be received, achieving reliable communication without continuous power consumption.
Data Source
AI summary
Various examples of the present invention relate to an electronic device group paging method and an electronic device thereof, and an electronic device operating method can comprise the steps of: converting, in a discontinuous reception (DRX) mode, the electronic device from an idle state into a wakeup state when it is time to check group paging; analyzing, in the wakeup state, the validity of a group paging message received through machine type communication (MTC); and performing a specific function according to the group paging message if the group paging message is valid. In addition, the various examples of the present invention also include the aforementioned example and other examples.