MIMO Terminal Layer Power Control for 6G
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Solution Overview
Problem
Current radio communication systems, such as those in Rel-15/16 NR, face challenges in achieving high-speed communication in Multi Input Multi Output (MIMO) environments, particularly in distributing power optimally among layers/ports to maximize channel capacity, which is crucial for future radio communication systems like 6G.
Innovation Solution
A terminal and radio communication method that include a control section to determine the number of layers for each transport block and control the association between transport blocks and layers, allowing for variable power distribution among layers/ports using space multiplexing, enabling flexible power control based on transport block sizes, payload sizes, and priority of transmission channels/signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If equal power is used between antenna ports and layers in Rel-15/16 NR, then communication simplicity is maintained, but communication speed and channel capacity are limited
Solution Approach 1:
The patent segments the power control into per-layer/power-port independent control rather than uniform power across all layers. The control section determines the number of layers for each transport block and controls association between transport blocks and layers, enabling independent power adjustment for each layer based on channel conditions and transmission requirements.
Solution Approach 2:
The patent implements dynamic power control where the power distribution across layers can be adjusted based on real-time transmission conditions. The control section dynamically determines layer associations and power allocation for each transport block, allowing the system to adapt to changing channel conditions and maximize communication speed while managing complexity through intelligent control.
2Productivity
If more layers are used for space multiplexing, then channel capacity increases, but power distribution optimization becomes more difficult
Solution Approach 1:
The patent applies local quality by enabling different power levels for different layers based on their specific transmission requirements and channel conditions. Instead of uniform power distribution, each layer can be allocated appropriate power according to the transport block size, priority, and associated antenna ports, optimizing channel capacity while managing the complexity through localized control.
Solution Approach 2:
The patent changes the power distribution parameters dynamically based on transmission conditions. The control section determines the number of layers and associates transport blocks with specific layers, adjusting power allocation parameters to match the actual transmission requirements. This allows the system to handle increased channel capacity requirements while managing complexity through parameter-based control.
3Adaptability or versatility
If transport blocks of different sizes are transmitted simultaneously, then transmission flexibility improves, but power control precision requirements increase
Solution Approach 1:
The patent segments the power control into transport block-specific control, where each transport block can be allocated appropriate power based on its size and requirements. The control section determines the number of layers for each transport block independently, enabling flexible transmission of different sized blocks while maintaining precise power control through individualized allocation.
Solution Approach 2:
The patent allows flexible transmission by enabling the system to transmit one or more transport blocks simultaneously with different power levels. The control section can determine partial layer associations based on actual transmission needs, providing adaptability for different transport block sizes while managing power control precision through selective activation of control mechanisms only when needed.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes: a control section that determines, for each of a plurality of different transport blocks (TBs), the number of layers corresponding to the TB and controls association between each of the plurality of TBs and a layer; and a transmitting section that transmits, by using one or more layers, each of the plurality of different TBs in a same time resource and frequency resource. According to one aspect of the present disclosure, power control per layer/port can be appropriately performed.