Multi-Panel NR Power Control Using Shared Reference Signal Sets
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Solution Overview
Problem
In Rel-16 NR systems, power control methods for radio signals transmitted on multiple panels are complex and demanding for RF and Power Amplifiers, necessitating a redesign to reduce latency and improve transmission performance.
Innovation Solution
A power control method where transmit power values for multiple panels are adjusted separately, using a first bit field to determine a reference signal resource set associated with multiple Beam Pair Links, allowing for a unified power control process across panels, reducing complexity and maintaining flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power control methods are designed to handle multiple panels separately, then transmission performance can be optimized for each panel, but device complexity and RF/PA demands increase significantly
Solution Approach 1:
The patent combines multiple panel power control into a unified process by using a single first bit field to determine a common reference signal resource set associated with multiple Beam Pair Links. This merging approach allows power control to be performed across panels collectively rather than separately, reducing device complexity while maintaining transmission performance through unified power management.
2Adaptability or versatility
If separate power control is implemented for multiple panels, then each panel can be optimized independently, but the demands on RF and Power Amplifier increase
Solution Approach 1:
The patent creates a universal power control mechanism where a single reference signal resource set serves multiple panels through association with multiple Beam Pair Links. This multi-functional approach allows the same power control structure to handle multiple panels simultaneously, providing adaptability for different panel configurations while reducing energy demands by avoiding separate RF/PA optimization for each panel.
3Device complexity
If a unified power control process is used across multiple panels, then complexity is reduced, but flexibility in individual panel adjustment may be limited
Solution Approach 1:
The patent introduces dynamic adaptability into the unified power control process by allowing the reference signal resource set to be associated with multiple Beam Pair Links that can be dynamically selected. This dynamic mechanism enables the system to adjust individual panel characteristics when needed while maintaining the overall unified structure, thus preserving flexibility without increasing implementation complexity.
Data Source
AI summary
The disclosure provides a method and a base station device for wireless communication. A RRC signaling having reference signal resource set(s) and second-type bit field(s) is transmitted, each of the second-type bit field(s) for indicating one power offset and corresponding to one of a plurality of indexes related to the reference signal resource set(s), the second-type bit field(s) including only one second-type bit field corresponding to a first index of the indexes. A PHY signaling having a first bit for determining a first reference signal resource set associated to the plurality of indexes is transmitted. Then a first radio signal at a first power value that is only related to power offsets indicated by all second-type bit fields among the second-type bit field(s) that correspond to the first index is received, the first radio signal being Quasi Co-located with one of the reference signal resource set(s).