Wireless Device Self-Interference Measurement Configuration
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Solution Overview
Problem
Current wireless communication systems face challenges in effectively configuring self-interference measurements, particularly in full duplex communication, due to the lack of accurate accounting for clutter echo, which affects the reliability and efficiency of self-interference reduction.
Innovation Solution
A method where a wireless device provides assistance information for self-interference measurement (SIM) configuration to another device, including resource information and beam candidate data, to improve the SIM procedure, allowing for better beam selection and clutter echo measurement, thereby enhancing full duplex operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional self-interference measurement configuration is used, then the system complexity is low, but the measurement accuracy is insufficient due to lack of clutter echo accounting
Solution Approach 1:
The patent applies preliminary action by having the wireless device provide assistance information about its transmit beams and receive beams before the self-interference measurement configuration is finalized. This allows the receiving device to pre-calculate which beam combinations will cause clutter echo and exclude them from the measurement configuration, thereby improving measurement accuracy while managing complexity through advance preparation
Solution Approach 2:
The patent introduces an intermediary mechanism through the assistance information exchange between wireless devices. The transmitting device acts as an intermediary by providing beam capability information that enables the receiving device to configure measurements that account for clutter echo, thus improving accuracy without significantly increasing overall system complexity
2Reliability
If comprehensive beam information is exchanged for accurate SIM configuration, then the measurement reliability improves, but the signaling overhead increases
Solution Approach 1:
The patent extracts only the necessary beam information needed for self-interference measurement configuration from the complete beam management information. Instead of exchanging all beam details, only the specific transmit beam and receive beam identifiers relevant to SIM are included in the assistance information, reducing signaling overhead while maintaining reliability
Solution Approach 2:
The patent applies partial action by providing a subset of beam information that is sufficient for SIM configuration purposes. The assistance information includes only the beam combinations that need to be evaluated for self-interference, rather than all possible beam configurations, achieving reliability with reduced signaling
3Productivity
If self-interference measurement is performed without clutter echo consideration, then the procedure is simple, but the interference reduction effectiveness is poor
Solution Approach 1:
The patent converts the harmful effect of clutter echo into a beneficial configuration parameter. By identifying which beam combinations produce clutter echo through the assistance information exchange, the system can deliberately exclude these combinations from SIM configuration, thereby improving interference reduction effectiveness while maintaining procedural simplicity through targeted measurement selection
Data Source
AI summary
A configuration for a first wireless device to provide, to a second wireless device, assistance information for a SIM configuration. The apparatus transmits, to a second wireless device, assistance information for a SIM configuration for the first wireless device and including resource information of the first wireless device for a SIM procedure. The apparatus receives, from the second wireless device, the SIM configuration.