Wireless UE Uplink Resource Allocation for Full-Duplex Interference Control
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing full duplex operations to ensure effective signal transmission and reception while minimizing self-interference, particularly in 5G systems with ultra-high frequency bands, which affect user equipment power consumption and channel state information reporting.
Innovation Solution
A power control method and apparatus are implemented to manage full duplex operations by optimizing transmission power based on distance and resource allocation, utilizing self-interference cancellation units and dynamic power adjustments to ensure efficient use of uplink resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full duplex operation is implemented in wireless communication systems, then data transmission efficiency is improved, but self-interference increases
Solution Approach 1:
The patent applies self-interference cancellation technology to convert the harmful self-interference signal into a beneficial effect. By measuring the self-interference channel and generating a cancellation signal that is opposite in phase to the self-interference, the system effectively nullifies the harmful interference, allowing full duplex operation to proceed with minimal self-interference impact.
Solution Approach 2:
The patent introduces an intermediary cancellation signal that acts as a mediator between the transmitted signal and the self-interference. This cancellation signal, generated through self-interference channel measurement and processing, interferes constructively with the self-interference signal to cancel it out, enabling simultaneous transmission and reception without significant self-interference.
2Temperature
If transmission power is increased to improve signal coverage, then communication range is extended, but power consumption increases
Solution Approach 1:
The patent implements dynamic power control where the base station adjusts its transmission power level based on real-time channel conditions, user equipment power status, and full duplex operation requirements. This dynamic adjustment allows the system to use minimum necessary power for effective communication while avoiding excessive power consumption, adapting power levels to actual operational needs rather than maintaining constant high power.
Solution Approach 2:
The patent changes the transmission power parameter dynamically based on multiple factors including distance to user equipment, channel state information, and full duplex configuration. By adjusting this critical parameter in response to varying operational conditions, the system achieves effective signal coverage when needed while minimizing power consumption during periods when full coverage is not required.
3Duration of action of moving object
If user equipment power is optimized to extend service period, then battery life is extended, but channel state information reporting accuracy may be affected
Solution Approach 1:
The patent implements a feedback mechanism where the base station receives channel state information reports from user equipment and uses this information to adjust transmission parameters and power levels. This feedback loop allows the system to maintain accurate channel state information through periodic reporting while optimizing power consumption, as the feedback enables adaptive power control that extends service period without significantly degrading measurement accuracy.
Data Source
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AI summary
A user equipment (UE) for transmitting and receiving signals in a wireless communication system according to an embodiment of the disclosure includes: a transceiver; and at least one processor configured to control the transceiver, wherein the at least one processor is further configured to control the transceiver to receive, from a base station (BS), full duplex carrier resource block (FD CRB) information, identify at least one resource block usable for uplink data transmission, based on the FD CRB information, and control the transceiver to transmit uplink data by using the identified at least one resource block.