Full-Duplex Uplink Power Control via Resource Segmentation
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Solution Overview
Problem
Existing power control solutions in mobile communications systems, particularly in the full-duplex mode of the NR system, fail to accurately set uplink transmit power, leading to self-interference issues and incorrect data reception by network devices.
Innovation Solution
A method and device for implementing uplink transmit power control in full-duplex systems by configuring different power control parameters based on resource types, including channel type, service type, and interference cancellation capabilities, to ensure precise power adjustment and reduce self-interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing power control solutions are used in full-duplex mode, then the system can operate in full-duplex networking mode, but the uplink transmit power cannot be accurately set leading to self-interference issues
Solution Approach 1:
The patent segments the power control parameter configuration by resource type, separating full-duplex resources from non-full-duplex resources. Different power control parameter sets are configured for different resource types, allowing precise power control specifically for full-duplex uplink transmission while maintaining existing operation for other modes.
Solution Approach 2:
The patent applies local quality by configuring power control parameters specifically tailored to full-duplex resource characteristics. The network device determines resource types and configures appropriate power control parameters for each resource type, ensuring that full-duplex resources receive specialized power control treatment to mitigate self-interference.
2Reliability
If higher receive power is used to cope with self-interference in full-duplex mode, then the network device can receive data correctly during self-interference conditions, but the complexity of power control increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring different power control parameter sets for different resource types before transmission occurs. The network device determines resource types and configures appropriate power control parameters in advance, allowing the terminal device to calculate and apply the correct transmit power without real-time complex adjustments during full-duplex operation.
Data Source
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AI summary
Embodiments of this application disclose a power control method and a device, and relate to the field of communications technologies. A network device operating in a full-duplex mode can correctly receive data during data sending. The method may include: receiving, by user equipment, power control parameter information of an uplink transmit power from a network device, where the power control parameter information includes first power control parameter information and second power control parameter information, the first power control parameter information is used to calculate an uplink transmit power for data transmission on a non-full-duplex resource, and the second power control parameter information includes a parameter for calculating an uplink transmit power for data transmission on a full-duplex resource; and determining, by the UE, an uplink transmit power based on the power control parameter information and a resource type used for uplink transmission, where the resource type includes a full-duplex resource and a non-full-duplex resource.