NB-IoT Sensor Capability Identification via MME Enquiry
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Solution Overview
Problem
Existing NB-IoT solutions fail to efficiently identify and integrate various sensors connected to user equipment, leading to challenges in optimizing sensor data transmission and managing diverse sensor types within the NB-IoT network.
Innovation Solution
A system and method that involve a mobile management entity (MME) transmitting an initial context setup request to a network entity, which then enquires about the sensor capabilities of user equipment, allowing for dynamic addition of new sensor types and configuration of data transmission via a control channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If NB-IoT is used for low-power wide-area network coverage, then battery lifetime and network coverage are improved, but the ability to efficiently identify and manage diverse sensor types is lost
Solution Approach 1:
The network entity proactively sends a capability enquiry message to the user equipment before actual sensor data transmission begins. This preliminary action allows the network to identify sensor types in advance, enabling optimized data transmission strategies and appropriate network resource allocation while maintaining NB-IoT's low-power operation.
Solution Approach 2:
A capability enquiry mechanism is introduced as an intermediary between the NB-IoT network and diverse sensor types. This intermediary allows the network to identify and categorize different sensor types (environmental, health, industrial, etc.) without requiring fundamental changes to the NB-IoT protocol, thus maintaining battery efficiency while adding sensor management capability.
2Adaptability or versatility
If sensor capability enquiry is added to NB-IoT protocol, then sensor type identification capability is improved, but device complexity and protocol overhead increase
Solution Approach 1:
The capability enquiry mechanism is designed as a universal solution that can identify multiple sensor types (environmental, health, industrial, safety) through a single standardized protocol extension. This multi-functional approach allows the NB-IoT network to handle diverse sensor categories without creating separate protocols for each sensor type, thereby limiting the increase in protocol complexity.
Solution Approach 2:
The solution modifies existing NB-IoT protocol parameters by adding sensor type identification fields to capability enquiry and response messages. Instead of fundamentally redesigning the protocol stack, the approach changes specific message parameters to include sensor category information, maintaining backward compatibility while adding identification capability.
3Adaptability or versatility
If comprehensive sensor data collection is implemented, then network functionality and data utility are improved, but data transmission overhead and power consumption increase
Solution Approach 1:
The network applies different data transmission strategies based on local sensor characteristics. Environmental sensors may use periodic reporting with longer intervals, while health or safety sensors may require more frequent updates. This localized optimization ensures each sensor type transmits data at the minimum necessary rate, reducing overall power consumption while maintaining required network functionality.
Solution Approach 2:
The system dynamically adjusts data transmission parameters based on sensor type, data urgency, and network conditions. The capability enquiry mechanism enables the network to determine appropriate transmission frequencies, data formats, and reporting intervals for each sensor, allowing flexible optimization of power consumption versus data utility in real-time.
Data Source
AI summary
Embodiments of the present disclosure relate to system and method for identifying at least one sensor on at least one user equipment [200] connected to a wireless network, comprising the a mobile management entity (MME) [101] transmitting an initial context setup request for at least one user equipment [200] to a network entity [300] of the wireless network. Next, the network entity [300] transmits a capability enquiry to the at least one user equipment [200] based on the initial context setup request received from the MME [101]. The network entity [300] receives a capability information from the at least one user equipment [200] in response to the capability enquiry, wherein the capability information comprises of sensor capability information of the at least one user equipment [200]. Thereafter, the network entity [300] transmits the capability information of the at least one user equipment [200] to the MME [101].