Beam-Aware Uplink Resource Muting for Full-Duplex Interference
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing signal interference, particularly in full-duplex (FD) modes, where passive-based techniques are insufficient, and adaptive-based methods rely on inaccurate self-interference and cross-link interference measurements.
Innovation Solution
Implementing uplink time-frequency resource muting patterns with detailed configurations, including time and frequency offsets, to enhance accuracy of interference measurements and reduce interference, while maintaining flexibility and reducing configuration overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If passive-based interference management techniques are used in full-duplex modes, then implementation simplicity is maintained, but interference reduction effectiveness is insufficient
Solution Approach 1:
The patent implements dynamic uplink resource muting patterns where the network can activate or deactivate specific muting patterns based on current interference conditions. The muting patterns are configured with time-domain periods and can be adaptively adjusted, allowing the system to transition from static passive techniques to dynamic adaptive interference management while maintaining operational simplicity through pre-configured patterns.
Solution Approach 2:
The patent changes the parameter of resource muting from a fixed passive state to a configurable state with multiple patterns having different time-domain periods, frequency offsets, and time offsets. This allows the system to select optimal muting parameters based on interference measurements, improving effectiveness while keeping the implementation manageable through parameterization rather than complex structural changes.
2Object-affected harmful factors
If adaptive-based interference management methods are used, then interference reduction effectiveness is improved, but measurement accuracy deteriorates due to reliance on inaccurate self-interference and cross-link interference measurements
Solution Approach 1:
The patent applies preliminary action by configuring multiple uplink resource muting patterns in advance with different time-domain periods and resource allocations before interference management is needed. When interference occurs, the system can immediately activate a pre-configured pattern without requiring real-time calculation, thus improving measurement accuracy by eliminating the need for inaccurate real-time self-interference measurements while maintaining adaptive effectiveness.
3Measurement precision
If detailed uplink resource muting patterns with time and frequency offsets are implemented, then interference measurement accuracy is improved, but configuration overhead increases
Solution Approach 1:
The patent segments the configuration into multiple independent muting patterns, each with its own time-domain period, frequency offset, and time offset parameters. Instead of configuring one complex comprehensive pattern, the system divides the configuration into manageable segments that can be independently selected and activated, reducing overall configuration overhead while maintaining detailed control for accurate interference measurement.
Solution Approach 2:
The patent implements partial action by configuring only the essential parameters (time-domain period, frequency offset, time offset) for each muting pattern rather than fully specifying all possible resource allocations. This partial configuration approach provides sufficient detail for accurate interference measurement while avoiding excessive configuration overhead through selective parameter specification.
4Adaptability or versatility
If multiple uplink resource muting patterns are configured with different time-domain periods, then flexibility in resource management is improved, but device complexity increases
Solution Approach 1:
The patent creates universal muting pattern templates that can serve multiple functions through a single configuration. Each muting pattern is designed with configurable time-domain periods and offsets that can adapt to different interference scenarios, allowing the same pattern structure to handle various interference types and conditions. This multi-functionality reduces the need for numerous specialized configurations, thereby reducing device complexity while maintaining flexibility.
Data Source
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AI summary
Various aspects of the present disclosure relate to uplink resource muting. An apparatus, such as a UE, receives a first configuration message indicating one or more uplink resource muting patterns each including one or more muting occasions, where at least one of the one or more muting patterns or the one more muting occasions is associated with at least one of a spatial filter, a beam, or a reference signal. The apparatus transmits one or more uplink signals including to mute one or more uplink transmissions of one or more of uplink time-frequency resources associated with at least one spatial filter, beam, or reference signal and based at least in part on the first configuration message.