Application Process State Reporting for 5G UE Battery Optimization
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Solution Overview
Problem
In 4G/5G mobile communication systems, when a user equipment (UE) transitions from an idle or inactive state to a connected state, the secondary cell addition procedure based on a blind addition scheme can lead to unnecessary battery consumption due to maintaining connections for minimal data transmission or short durations, as the base station lacks sufficient parameters to identify the number of secondary cells for carrier aggregation or dual connectivity operations.
Innovation Solution
A terminal is equipped with a processor that generates application process state (APS) information indicating whether data is generated in a background or foreground process and transmits this information to a base station, allowing the base station to optimize secondary cell additions and releases, thereby reducing unnecessary battery consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the base station uses a blind addition scheme for secondary cell addition, then the connection setup speed is improved, but unnecessary battery consumption occurs due to maintaining connections for minimal data transmission
Solution Approach 1:
The terminal performs preliminary classification of data into background and foreground categories before transmission. This preliminary action allows the base station to make informed decisions about secondary cell addition and release, preventing unnecessary connection maintenance and reducing battery consumption while maintaining fast connection setup
Solution Approach 2:
The terminal provides feedback to the base station about the type of data (background or foreground) that needs transmission. This feedback mechanism enables the base station to optimize secondary cell configuration dynamically, releasing unnecessary cells for background data and maintaining them for foreground data, thus reducing energy consumption without sacrificing connection speed
2Reliability
If the base station maintains secondary cells for potential data transmission, then the readiness for data transmission is improved, but battery consumption increases due to unnecessary maintenance
Solution Approach 1:
The secondary cell configuration is made dynamic rather than static. The base station adjusts the number and state of secondary cells based on real-time data type feedback from the terminal. For background data, cells can be released or put in dormant state, while for foreground data, cells are maintained in active state, optimizing the balance between readiness and energy consumption
3Productivity
If the terminal transmits minimal data frequently, then the data transmission capability is improved, but the base station cannot distinguish between background and foreground processes leading to unnecessary resource allocation
Solution Approach 1:
The terminal segments data transmission information by classifying data into background and foreground categories. This segmentation preserves process status information that would otherwise be lost, enabling the base station to make differentiated resource allocation decisions for minimal data transmissions while maintaining full data transmission capability
Data Source
AI summary
The disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). Disclosed is a method performed by a terminal, which includes generating application process state (APS) information indicating whether data generated by at least one application of the terminal is data generated in a background process or data generated in a foreground process; and transmitting a control signal including the APS information to a base station.