Mobile-Originated-Only Mode for MTC Battery Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In machine-type communication (MTC) scenarios, especially for devices that only initiate communications (e.g., metering systems), there is a need to conserve battery life and optimize network operations by reducing unnecessary location updates and idle mode procedures.
Innovation Solution
The introduction of a 'mobile-originated-only mode' that allows WTRUs to operate in a state where they only perform necessary functions for initiating communications, reducing battery consumption and optimizing network resources by minimizing idle mode procedures and location updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a device operates in traditional idle mode supporting both mobile-originated and mobile-terminated communications, then the device can receive calls and maintain network connectivity, but the device consumes more battery power due to frequent location updates and idle mode procedures
Solution Approach 1:
The patent segments the traditional idle mode into two distinct modes: mobile-originated-only mode and mobile-terminated mode. This segmentation allows devices to select the appropriate mode based on their communication requirements, thereby reducing unnecessary energy consumption while maintaining required functionality.
Solution Approach 2:
The patent introduces dynamic mode switching capability that allows devices to transition between mobile-originated-only mode and mobile-terminated mode based on their current communication needs. This dynamic adaptation enables optimal energy consumption while maintaining communication versatility when needed.
2Duration of action of moving object
If a device performs frequent location updates and idle mode procedures to maintain network connectivity, then the device can be reached for incoming calls, but the device experiences reduced operational duration without manual intervention
Solution Approach 1:
The patent extracts the mobile-terminated communication functionality from the mobile-originated-only mode. By separating these functionalities, devices that only need to initiate calls can operate in the energy-efficient mobile-originated-only mode without performing unnecessary location updates and idle mode procedures, thereby extending operational duration.
Solution Approach 2:
The patent changes the operational parameters by introducing a new idle mode configuration that modifies location update behavior and network interaction patterns. This parameter change reduces energy consumption for devices in mobile-originated-only mode while maintaining their core functionality.
3Productivity
If a device supports mobile-terminated communications in idle mode, then the network can locate and reach the device, but the device performs unnecessary operations when only mobile-originated communications are needed
Solution Approach 1:
The patent segments the idle mode operations into device-specific configurations. Devices in mobile-originated-only mode perform a simplified set of procedures, while devices supporting mobile-terminated communications perform the full set of procedures. This segmentation improves communication efficiency by eliminating unnecessary operations.
Solution Approach 2:
The patent enables devices to self-determine their communication mode requirements and automatically select the appropriate idle mode behavior. This self-service approach allows devices to optimize their operation without complex network control, reducing unnecessary procedures while maintaining required functionality.
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A method and apparatus for supporting machine-type communications (MTC) are disclosed. A wireless transmit/receive unit (WTRU) may configure itself to operate in a mobile-originated-only mode. The WTRU may perform no, or a subset of, radio resource control (RRC) idle and/or non-access stratum (NAS) idle/standby state procedures in the mobile-originated-only mode. For example, the WTRU may perform cell reselection but not paging monitoring in the mobile-originated-only mode. Alternatively, the WTRU may perform paging monitoring but not cell reselection and location update. The operation in the mobile-originated-only mode may be triggered explicitly or implicitly. For example, the WTRU may operate in the mobile-originated-only mode if an inactivity timer expires. The WTRU may switch the mode in accordance with a pre-configured schedule. After transition of the operation mode, the WTRU may send a message to the network indicating such mode switch.