Multi-Panel UE Transmit Power Configuration for Interference Control
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing transmit power across multiple antenna panels of user equipment (UE) due to the lack of effective power control mechanisms, leading to potential interference and suboptimal performance in simultaneous transmissions.
Innovation Solution
Implementing a configuration mechanism for user equipment (UE) and network nodes to manage transmit power control across multiple antenna panels based on per-panel and across-panel constraints, using configuration information to set maximum output power values for each panel, enabling simultaneous uplink signals transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple antenna panels transmit simultaneously without power control, then transmission productivity is improved, but interference increases and signal quality deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting transmit power levels of individual antenna panels based on configured maximum output power values. The system modifies power parameters per-panel or across-panels to optimize simultaneous transmissions while controlling interference, resolving the contradiction between transmission productivity and interference reduction.
2Object-affected harmful factors
If per-panel power constraints are applied, then interference is reduced, but device complexity increases due to additional configuration requirements
Solution Approach 1:
The patent segments the power control mechanism into distinct per-panel constraints and across-panel constraints. This segmentation allows independent configuration of each antenna panel's maximum output power while maintaining system-wide coordination, reducing overall system complexity compared to a fully centralized control approach.
Solution Approach 2:
The system dynamically configures maximum output power values for antenna panels based on operational conditions. The UE can be configured with different power constraints for different panels or groups of panels, allowing adaptive power management that balances interference reduction with configuration complexity.
3Reliability
If across-panel power constraints are used, then overall signal quality is improved, but ease of operation decreases due to more complex power management
Solution Approach 1:
The patent merges per-panel and across-panel power constraints into a unified power control framework. The network node configures maximum output power values that can be applied individually to panels or collectively across multiple panels, combining detailed control with simplified operation through integrated configuration mechanisms.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information corresponding to transmit power control associated with simultaneous transmissions by a plurality of antenna panels of the UE, wherein the configuration information is indicative of a plurality of configured maximum output power values corresponding to respective antenna panels of the plurality of antenna panels, wherein the plurality of configured maximum output power values is based on at least one of a set of per-panel transmit power constraints or a set of across-panel transmit power constraints. The UE may transmit a plurality of simultaneous uplink signals based on the configuration information. Numerous other aspects are described.