Dynamic Master-Slave Channel Allocation for Cellular IoT Energy Efficiency
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Solution Overview
Problem
Current cellular systems face challenges in efficiently managing and resource-sharing among a large number of devices with varying data transmission capabilities, particularly in IoT applications, where devices need to be classified into master and slave modes to optimize energy usage and resource allocation.
Innovation Solution
A method in a cellular system where devices are dynamically classified into master or slave modes based on dependency values, with specific communication channels (master and slave communication channels) established for each mode, allowing for efficient resource sharing and energy conservation, and enabling seamless integration with existing communication networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If devices transmit data frequently in master mode, then data transmission capability is improved, but energy consumption increases
Solution Approach 1:
The patent implements dynamic mode switching between master and slave modes based on data transmission requirements. Devices can transition between these modes to adapt their data transmission frequency and energy consumption characteristics, allowing the system to optimize the balance between productivity and energy usage in real-time operational conditions
Solution Approach 2:
The patent changes operational parameters by defining distinct master and slave modes with different transmission frequencies and energy consumption profiles. The network element controls devices to operate in appropriate modes by adjusting transmission parameters, thereby resolving the contradiction between high data transmission capability and low energy consumption
2Ease of operation
If separate control channels are established for master and slave modes, then device management efficiency is improved, but system complexity increases
Solution Approach 1:
The patent segments the control channel into mode-specific channels (master communication channel and slave communication channel) that are periodically established at different time periods. This segmentation allows the network element to manage devices more efficiently by using appropriate channels for their operational mode, while the periodic establishment pattern helps control the overall system complexity
Data Source
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AI summary
The present disclosure relates to a method in a cellular system (100), wherein the cellular system (100) comprises a plurality of devices (101), wherein a device (101A-H) of the devices is configured to operate in a master or slave mode, wherein in the master mode the device is operable to transmit data more frequent than in the slave mode; the method comprising in a network element (107) of the cellular system (100) determining a predefined communication channel for communicating control data to the device, wherein the communication channel is associated with the master or slave mode in which the device is operating, wherein the communication channel associated with the master mode is a master communication channel and the communication channel associated with the slave mode is a slave communication channel; and communicating the control data to the device via the determined communication channel.