Beam-Specific Power Control for New Radio Systems
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Solution Overview
Problem
Current power control methods for New Radio (NR) wireless communications systems are inadequate, failing to efficiently allocate power and optimize system performance.
Innovation Solution
A power control method that employs beam-specific power control, where base stations send power control information to terminals, allowing them to adjust transmit power based on specific beams, considering factors like current transmit power, channel state, and network requirements, to ensure efficient power allocation and improved communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam-specific power control is implemented in NR systems, then power allocation efficiency and system performance are improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent segments power control into beam-specific components by introducing separate power control parameters for different beam types (coverage enhancement beam, capacity enhancement beam, random access beam). This segmentation allows independent optimization of power allocation for each beam type, improving overall power allocation efficiency while managing complexity through structured parameter organization.
Solution Approach 2:
The patent applies local quality by assigning different power control characteristics to different beam types based on their specific functions. Coverage enhancement beams receive different power control treatment than capacity enhancement beams, allowing each beam type to have optimized power allocation suited to its specific purpose, thereby improving overall system performance.
2Reliability
If beam-specific power control parameters are configured for different beam types, then transmission reliability and capacity are improved, but signaling overhead increases
Solution Approach 1:
The patent implements universality by designing a unified power control framework that handles multiple beam types (coverage enhancement, capacity enhancement, random access) through a common set of parameter structures. The base station can configure power control parameters that apply universally across different beam types or selectively for specific beams, reducing redundant signaling while maintaining beam-specific optimization.
Solution Approach 2:
The patent applies partial action by allowing the base station to configure power control parameters selectively - not all beams need full power control configuration. The system can apply power control to only those beams that require it (e.g., coverage enhancement beams in challenging conditions) while using simpler power control for other beams, thereby reducing overall signaling overhead while maintaining reliability where needed.
Data Source
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AI summary
Embodiments of this application disclose a power control method, including: sending, by a first device, a first message to a second device, where the first message includes power control information for a first beam of the second device, the first beam includes at least one beam, and the power control information includes a power control command; and receiving a signal sent by the second device by using the first beam, where a transmit power of a signal on the first beam is determined based on the power control information. The power control method provided in the embodiments of this application fully considers characteristics of NR to ensure efficient and proper allocation of power and thereby improve overall performance of a system.