Autonomous UE Self-Interference Measurement from Scheduled Uplink Signals
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently performing self-interference measurements due to the consumption of time-frequency and power resources when using dedicated resources and signals, which also require network entity configuration.
Innovation Solution
User equipment (UE) performs autonomous self-interference measurements using previously-scheduled uplink transmissions, eliminating the need for dedicated resources and reducing resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dedicated resources and signals are used for self-interference measurements, then measurement accuracy is improved, but time-frequency and power resource consumption increases
Solution Approach 1:
The patent applies universality by enabling uplink transmissions to serve dual purposes: carrying uplink data and providing signals for self-interference measurements. Instead of dedicating separate resources for measurements, the system reuses existing uplink transmissions, allowing the same time-frequency resources to fulfill multiple functions and thereby reducing overall resource consumption while maintaining measurement capability
Solution Approach 2:
The UE performs autonomous self-interference measurements using its own uplink transmissions without requiring network entity configuration or dedicated measurement signals. The UE independently measures self-interference on previously scheduled uplink transmissions and reports results, enabling the system to serve itself and eliminate the need for additional network-configured measurement resources
2Measurement precision
If dedicated resources and signals are used for self-interference measurements, then measurement capability is improved, but device complexity and network configuration requirements increase
Solution Approach 1:
The UE autonomously performs self-interference measurements without requiring network entity configuration. The UE independently selects previously scheduled uplink transmissions for measurement, performs the measurements, and reports results, thereby eliminating complex network configuration procedures and reducing device complexity while maintaining full measurement capability
Solution Approach 2:
The patent enables existing uplink transmissions to serve dual purposes as both data carriers and measurement signals. This eliminates the need for separate dedicated measurement signals and network configuration, simplifying the overall system while preserving comprehensive self-interference measurement functionality
3Productivity
If autonomous self-interference measurements are performed using previously-scheduled uplink transmissions, then resource consumption is reduced, but measurement flexibility may be limited
Solution Approach 1:
The patent implements dynamics by allowing the UE to flexibly select from multiple previously scheduled uplink transmissions for measurement purposes. The UE can adaptively choose which uplink transmissions to use based on current conditions, and the network can dynamically schedule uplink transmissions with appropriate properties for measurement, thereby maintaining measurement flexibility while improving resource utilization
Solution Approach 2:
The system achieves versatility through universality by enabling any suitably scheduled uplink transmission to serve as a measurement signal. The network can configure uplink transmissions with diverse properties (different time-frequency resources, modulation schemes, etc.) that can all be reused for measurements, providing flexible measurement options without requiring dedicated measurement resources
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for user equipment-based autonomous self-interference measurement. An example method includes transmitting at least one uplink (UL) transmission using at least one UL transmit beam, performing self-interference measurements using at least one downlink (DL) receive beam to measure, for full duplex operation, self-interference associated with the at least one UL transmission transmitted using the at least one UL transmit beam, and transmitting a measurement report indicating the measured self-interference associated with the at least one UL transmission transmitted using the at least one UL transmit beam.