Modem Timer Synchronization for 5G Measurement Report Timing
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Solution Overview
Problem
In 5G mobile communication systems, the long startup time of the 5G modem prevents 5G mobile phones from connecting to 5G cells due to the inability to send measurement reports within the network's time constraints, leading to ignored reports and failed connections.
Innovation Solution
Implementing a method where a timer is set to ensure the Tracking Area Update (TAU) request is sent after the 5G modem has started up, allowing the 5G modem to measure and report network configurations without exceeding the network's response time, using flag bits to determine startup status and enable dual connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the 5G modem is started up after receiving the enable signal, then the 5G network connection can be established, but the total time exceeds the network's 3-second requirement for measurement report delivery
Solution Approach 1:
The patent applies preliminary action by having the first modem send a TAU request to the network side device before the second modem finishes starting up. The timer is started immediately upon receiving the enable signal, and the TAU request is sent when the timer expires, which is before the measurement configuration needs to be delivered. This allows the network to be prepared in advance, eliminating the time delay caused by waiting for the second modem to fully start up.
2Speed
If the TAU request is sent immediately upon receiving the enable signal, then the network response time is minimized, but the second modem may not have finished starting up yet
Solution Approach 1:
The patent uses a timer as an intermediary mechanism to coordinate between the immediate TAU request sending and the second modem startup completion. The timer acts as a mediator that allows the TAU request to be sent at the optimal moment - after the second modem has started up but within the network's response time window. This resolves the conflict between sending the request immediately versus waiting for startup completion.
3Loss of time
If the measurement configuration is sent to the second modem before it finishes starting up, then the network response time is reduced, but the second modem cannot process the configuration correctly
Solution Approach 1:
The patent applies preliminary action by having the first modem send the TAU request before the second modem finishes starting up, so that the network can send the measurement configuration in advance. The timer is configured to expire before the second modem's startup is complete, allowing the TAU request to be sent at this optimal moment. This ensures the network prepares the measurement configuration in advance, reducing the overall time while the second modem is still initializing.
Data Source
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AI summary
A method for sending a measurement report, includes: after receiving an enable signal of a second network, a first modem starting up a timer and sending a startup signal to a second modem; when the timer expires, the first modem sending a tracking area update (TAU) request to a network side device; the first modem receiving a measurement configuration sent by the network-side device, and instructing the second modem after startup to measure the second network according to the measurement configuration to obtain a measurement report; and reporting the measurement report to the network-side device.