Terminal RSRP Calculation for Uplink Power Control
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Solution Overview
Problem
Conventional transmission control in communication apparatuses, such as terminal and base station apparatuses, fails to achieve efficient communication.
Innovation Solution
A terminal apparatus equipped with a receiver for SS blocks and/or CSI-RSs, a measuring unit for RSRP measurement, and an uplink power control unit for path loss evaluation of PUSCH, allowing for separate calculation of RSRP measurement results and transmit power for efficient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple SS blocks and/or CSI-RSs are used for RSRP measurement to improve measurement accuracy, then measurement precision is improved, but transmission efficiency deteriorates due to conventional transmission control limitations
Solution Approach 1:
The patent segments the RSRP calculation process into two independent parts: one for measurement reporting and another for path loss evaluation. When multiple SS blocks/CSI-RSs are configured, the terminal calculates a first RSRP for measurement reporting and a second RSRP for path loss evaluation separately, rather than using a single unified calculation method. This segmentation allows each calculation to be optimized for its specific purpose, resolving the contradiction between measurement accuracy and transmission efficiency.
Solution Approach 2:
The patent applies different calculation methods locally to different RSRP purposes. For measurement reporting, one calculation approach is used to ensure accurate network condition feedback, while for path loss evaluation, a different calculation approach is used to optimize uplink power control. This local differentiation of calculation quality based on specific needs resolves the contradiction by allowing each function to have its own optimized measurement precision without compromising overall transmission efficiency.
2Productivity
If separate calculation of RSRP for measurement reporting and path loss evaluation is implemented to improve transmission efficiency, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent divides the RSRP processing function into separate calculation paths: one path processes RSRP for measurement reporting and another path processes RSRP for path loss evaluation. This segmentation is implemented through distinct calculation logic that operates independently based on the configured number of SS blocks/CSI-RSs, allowing the terminal to improve transmission efficiency while managing complexity through modular, purpose-specific calculation routines.
Solution Approach 2:
The patent implements dynamic calculation behavior that adapts to the configured number of SS blocks/CSI-RSs. When multiple SS blocks/CSI-RSs are configured, the terminal dynamically switches to separate calculation modes; when a single SS block/CSI-RS is configured, it uses a unified calculation mode. This dynamic adaptation allows the system to optimize transmission efficiency only when needed, thereby limiting the increase in device complexity to specific scenarios rather than imposing it universally.
Data Source
AI summary
The present invention efficiently performs communication. Included are a transmitter configured to transmit a measurement report including a measurement result for a serving cell c and/or a PUSCH for the serving cell c, wherein in a case that the number of SS blocks and/or CSI-RSs used for the RSRP measurement is greater than one for the serving cell c, the measurement result of RSRP included in the measurement report and the RSRP used for evaluation of a path loss for transmit power of the PUSCH are calculated separately.