PUSCH Transmit Power Segmentation for Full-Duplex Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Full-duplex communication in wireless networks faces challenges with self-interference and conflicting transmit power configurations when a subset of radio resources is used for full-duplex and another subset for non-full-duplex communications, leading to degraded reception performance or inefficient transmit power usage.
Innovation Solution
Implementing different transmit power configurations for full-duplex and non-full-duplex portions of time-frequency resources, using open-loop and closed-loop power control parameters to mitigate self-interference and optimize communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single transmit power configuration is used for both full-duplex and non-full-duplex portions, then device complexity is reduced, but self-interference increases and reception performance degrades
Solution Approach 1:
The time-frequency resource is segmented into full-duplex and non-full-duplex portions, with separate transmit power configurations applied to each portion. This allows independent optimization of power settings for each communication mode, reducing self-interference while maintaining manageable device complexity through structured segmentation.
Solution Approach 2:
Different transmit power configurations are applied locally to different portions of the time-frequency resource based on the communication mode. Full-duplex portions receive configurations optimized for simultaneous transmission and reception, while non-full-duplex portions receive configurations optimized for single-direction communication, thereby reducing self-interference in full-duplex modes.
2Object-affected harmful factors
If different transmit power configurations are used for full-duplex and non-full-duplex portions, then self-interference is reduced and reception performance is improved, but device complexity increases
Solution Approach 1:
The transmit power configuration is made dynamic by allowing different configurations for full-duplex and non-full-duplex portions while providing mechanisms for the wireless communication device to determine and adapt to the appropriate configuration based on the communication mode, thereby managing complexity through adaptive determination.
Solution Approach 2:
The base station provides indications of the transmit power configurations to the wireless communication device, creating a feedback mechanism that guides the device in selecting appropriate power settings for each portion, thereby managing device complexity through external guidance while achieving reduced self-interference.
3Reliability
If transmit power is increased to maintain reception quality in full-duplex mode, then reception performance is maintained, but transmit power efficiency decreases
Solution Approach 1:
The transmit power configuration parameters are changed and optimized specifically for full-duplex communication modes, allowing the system to maintain reception performance through parameter optimization rather than simply increasing power, thereby improving power efficiency while maintaining reliability.
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive an indication of a first transmit power configuration and a second transmit power configuration for a physical uplink shared channel (PUSCH) communication. The wireless communication device may transmit, using a first transmit power that is based at least in part on the first transmit power configuration, a first portion of the PUSCH communication in a full-duplex portion of a time-frequency resource. The wireless communication device may transmit, using a second transmit power that is based at least in part on the second transmit power configuration, a second portion of the PUSCH communication in a non-full-duplex portion of the time-frequency resource. Numerous other aspects are provided.