Uplink Carrier Power Prioritization for Random Access Transmission
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Solution Overview
Problem
In future radio communication systems, the appropriate prioritization of power distribution for uplink transmission across multiple carriers or component carriers is not adequately addressed, leading to potential communication quality degradation and throughput reduction.
Innovation Solution
A terminal is equipped with a transmitting section that prioritizes random access channel transmission on a serving cell over semi-persistent sounding reference signal and periodic SRS transmission in power allocation, ensuring appropriate power distribution across uplink carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If random access channel transmission is prioritized over semi-persistent SRS and periodic SRS transmission in power allocation, then communication quality and throughput are improved, but power allocation complexity increases
Solution Approach 1:
The patent changes the priority parameter assignment by defining specific priority values for different transmission types. Random access channel transmission is assigned higher priority than semi-persistent and periodic SRS transmissions, creating a clear hierarchical power allocation structure that improves communication quality while maintaining manageable complexity through standardized parameter assignment.
2Productivity
If random access channel transmission is prioritized over semi-persistent SRS and periodic SRS transmission in power allocation, then throughput is improved, but power distribution control complexity increases
Solution Approach 1:
The patent introduces explicit priority parameters that dictate power distribution hierarchy. By assigning random access channel transmission higher priority values than SRS transmissions, the system automatically optimizes throughput through improved power allocation without requiring complex real-time control mechanisms, as the priority relationships are pre-defined.
3Device complexity
If priority of power distribution is not appropriately recognized, then device complexity is reduced, but communication quality degradation occurs
Solution Approach 1:
The patent resolves this contradiction by establishing clear priority parameter definitions for different transmission types. The standardized priority assignment ensures that random access channel transmissions receive appropriate power allocation without requiring complex recognition logic, thereby maintaining communication quality while avoiding excessive system complexity.
Data Source
Figure 1
Figure 2A~2B
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AI summary
A terminal according to one aspect of the present disclosure includes a transmitting section that transmits capability information, and a control section that, when the capability information indicates a function of prioritizing a random access channel transmission on a serving cell other than a primary cell over a semi-persistent sounding reference signal (SRS) transmission and a periodic SRS transmission in power allocation to any of two uplink carriers of one cell and a plurality of cells in carrier aggregation, performs the function.