Paging Synchronization in Power-Saving Cellular Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In existing cellular wireless communication systems, terminals in power-saving mode cannot receive paging messages, leading to unnecessary resource waste due to repeated network paging attempts when downlink data arrives.
Innovation Solution
A method and system that control signalling transmission by saving power-saving parameters and timing for terminals moving between 3G and LTE networks, ensuring paging messages are sent only at activation times, avoiding repeated network paging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the terminal uses power-saving mode with sleep time, then the terminal's energy consumption is reduced, but the terminal cannot receive paging messages during sleep time
Solution Approach 1:
The network side performs preliminary actions by saving the terminal's power-saving parameters and scheduling paging messages to be sent only at the terminal's activation times. This allows the terminal to maintain power-saving mode while ensuring reliable paging message reception when the terminal is active.
Solution Approach 2:
The system implements feedback mechanisms where the network side obtains and utilizes the terminal's power-saving parameters to adjust paging message transmission timing. This feedback loop ensures that paging messages are sent at appropriate times when the terminal can receive them, resolving the contradiction between power-saving and reliable communication.
2Speed
If the network sends paging messages when downlink data arrives, then data delivery is timely, but resource waste occurs due to repeated paging attempts
Solution Approach 1:
The network side performs preliminary action by saving the terminal's power-saving parameters in advance. This allows the network to schedule paging messages at the terminal's activation times rather than sending repeated paging messages, reducing resource waste while ensuring timely data delivery when the terminal is active.
Solution Approach 2:
The system changes the timing parameter of paging message transmission based on the terminal's power-saving parameters. Instead of sending paging messages at fixed intervals or immediately when data arrives, the network adjusts the transmission timing to match the terminal's activation schedule, reducing resource waste while maintaining data delivery speed.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A method and system for controlling signalling transmission in a power-saving mode are disclosed. The method includes that a terminal transmits a tracking area update request signalling or a routing area update request signalling to a new mobility management unit, wherein each signalling includes a power-saving parameter; and the new mobility management unit transmits a power-saving parameter to an old mobility management unit or a serving gateway. According to the disclosure, a network is enabled to keep pace with the power-saving mode of the terminal, and a paging message is transmitted only at activation time, thereby ensuring that the terminal may receive the paging message, and avoiding resource waste caused by repeated paging of the network.