5G Multicast Paging Wake-Up Timing for Low-Power IoT Reception
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Solution Overview
Problem
Existing multicast service transmission methods in 5G networks face challenges in efficiently managing power consumption and optimizing data reception for IoT devices, particularly in scenarios where devices need to wake up at specific times for multicast data reception, leading to inefficient power usage.
Innovation Solution
Implementing a method where IoT devices are configured to enter a power-saving mode and are awakened at predetermined activation times for multicast data reception, utilizing eDRX cycles and paging mechanisms to optimize power consumption and synchronize data reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If IoT devices wake up at specific times for multicast data reception, then data reception reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic wake-up cycles for IoT devices, where devices enter idle mode during non-reception periods and activate only at predetermined times when multicast data is expected. This periodic operation pattern allows devices to balance between maintaining reliable data reception capability and conserving power during idle periods, directly resolving the contradiction between reception reliability and power consumption.
2Loss of time
If devices remain active for multicast data reception, then data reception及时性 is improved, but network resource utilization deteriorates
Solution Approach 1:
The network sends paging messages to IoT devices in advance before multicast data transmission begins. Devices receive the paging message, activate their receivers, and prepare for data reception at the predetermined time. This preliminary notification mechanism ensures devices are ready exactly when needed without remaining continuously active, thus improving timeliness while optimizing network resource utilization.
Data Source
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AI summary
There is provided an apparatus comprising means for: receiving at least one paging request from an access and mobility management function; transmitting a service request in response to the at least one paging request to the access and mobility management function; receiving one or more activation times in the at least one paging request or in response to the service request, wherein the one or more activation times indicate the time(s) when transmission of data starts; and starting reception of data and/or reception of paging request for data at the one or more activation times.