Uplink Carrier Deactivation via Downlink Linking in Wireless Systems
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Solution Overview
Problem
In wireless communication systems, there is a need to efficiently deactivate uplink carriers when corresponding downlink carriers are deactivated to conserve resources and reduce processing overhead, as existing methods lack a systematic approach for determining and managing the linking between uplink and downlink carriers.
Innovation Solution
A method and apparatus that determine the linking between uplink and downlink carriers based on system information, cross-carrier scheduling, pathloss, and uplink timing references, allowing for the systematic deactivation of uplink carriers when a downlink carrier is deactivated, thereby reducing resource usage and processing requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If uplink carriers remain active after downlink carrier deactivation, then processing capability is maintained, but resource consumption increases
Solution Approach 1:
The patent implements dynamic carrier state management where uplink carriers are automatically deactivated when their associated downlink carriers are deactivated. This dynamic adjustment of carrier states based on real-time network conditions resolves the contradiction by adapting resource usage to actual needs, reducing energy consumption while maintaining processing capability when required.
Solution Approach 2:
The patent establishes a feedback mechanism through carrier linking relationships, where the state of downlink carriers provides feedback information that triggers corresponding uplink carrier deactivation. This feedback loop ensures that processing capability is maintained only when necessary, optimizing the balance between resource consumption and processing capability.
2Productivity
If systematic carrier linking management is implemented, then resource management efficiency improves, but system complexity increases
Solution Approach 1:
The patent segments the carrier management system into distinct linking relationships (system information linking, cross-carrier scheduling linking, pathloss linking, and uplink timing reference linking). This segmentation allows for systematic resource management through organized, modular linking structures, improving efficiency while managing complexity through structured decomposition of the management system.
Solution Approach 2:
The patent creates a universal carrier linking management framework that handles multiple types of carrier relationships (system information, cross-carrier scheduling, pathloss, timing references) through a unified approach. This multi-functional linking mechanism improves resource management efficiency across different carrier scenarios while avoiding the need for separate management systems for each carrier type.
Data Source
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AI summary
Methods and apparatuses are provided for determining whether to deactivate one or more uplink carriers based at least in part on determining deactivation of a downlink carrier. A linking of the one or more uplink carriers to the downlink carrier can be obtained for determining whether to deactivate the one or more uplink carriers. The linking can be a system information block linking, a carrier indicator field linking, a pathloss linking, an uplink timing reference linking, and/or the like. The one or more uplink carriers can be deactivated based on the linking and/or another linking to one or more other downlink carriers.