Cross-Link Interference Measurement Configuration for Wireless Scheduling
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Solution Overview
Problem
Existing wireless communications systems face challenges in managing inter-network entity cross-link interference, which can reduce throughput and increase overhead due to increased device density, particularly in full-duplex and time division duplexing scenarios.
Innovation Solution
Configuring network entities to transmit, receive, and report cross-link interference (CLI) measurements by exchanging configurations and reference signals among network entities to facilitate efficient CLI measurement and scheduling decisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If network entities transmit and monitor reference signals for CLI measurements, then interference measurement capability is improved, but signaling overhead and device complexity increase
Solution Approach 1:
The patent applies universality by configuring network entities to use reference signals for multiple purposes: both for CLI measurements and for scheduling decisions. The same reference signal infrastructure serves dual functions, reducing the need for separate dedicated measurement signals and thereby lowering signaling overhead while maintaining measurement precision.
Solution Approach 2:
The patent implements feedback mechanisms where network entities report CLI measurements back to the controlling network entity. This feedback loop enables dynamic adjustment of resource allocation and scheduling decisions based on actual interference conditions, improving measurement utility while optimizing the balance between measurement precision and signaling overhead through intelligent feedback filtering and reporting strategies.
2Reliability
If network entities exchange configuration information for CLI measurements, then interference management capability is improved, but communication overhead increases
Solution Approach 1:
The patent extracts and separates essential configuration elements from the overall signaling process. By identifying and transmitting only the critical configuration parameters needed for CLI measurements (such as reference signal resource configurations and measurement timing), the system achieves reliable interference management while minimizing communication overhead by eliminating redundant information exchange.
Solution Approach 2:
The patent applies preliminary action by pre-configuring network entities with CLI measurement parameters before actual measurements begin. This includes pre-establishing reference signal resources, measurement timing, and reporting configurations, which reduces the need for extensive real-time configuration exchanges and thereby lowers communication overhead while maintaining reliable interference management.
3Measurement precision
If reference signals are transmitted for CLI measurements, then cross-link interference visibility is improved, but system throughput is reduced due to resource consumption
Solution Approach 1:
The patent implements periodic action by configuring reference signals to be transmitted at specific periodic intervals rather than continuously. This allows the system to maintain adequate CLI measurement visibility while freeing up resources during non-measurement periods, thereby reducing the impact on system throughput while preserving necessary interference measurement capability.
Solution Approach 2:
The patent applies partial action by selectively configuring CLI measurements only for network entity pairs where interference is likely to occur, rather than implementing universal monitoring across all entities. This targeted approach maintains sufficient interference visibility for critical scenarios while minimizing resource consumption and preserving system throughput in non-problematic areas.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. For example, the described techniques provide for configuring a network entity to transmit reference signals for cross-link interference (CLI) measurements, receive reference signals for CLI measurements, or report CLI measurements. A first network entity may transmit an indication to a second network entity of a configuration for transmitting reference signals for CLI measurements. The first network entity may also transmit an indication to a third network entity of a configuration for monitoring for or receiving the reference signals for CLI measurements, and the first network entity may transmit another indication to the third network entity of a configuration for reporting the CLI measurements. The second network entity may then transmit the reference signals, and the third network entity may receive the reference signals, perform CLI measurements on the reference signals, and report the CLI measurements.