Victim-Aggressor Collision Avoidance via Measurement RS Coordination
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Solution Overview
Problem
Current wireless communication systems face challenges in managing interference between multiple network entities, particularly in full duplex (FD) communication scenarios, as existing remote interference measurement (RIM) frameworks do not optimize gNB beam configurations to mitigate inter-gNB interference effectively, leading to increased collisions and inefficiencies.
Innovation Solution
The techniques involve coordinating and adjusting the configuration of measurement reference signals (RS) between multiple network entities to optimize FD communication, reducing collisions and enhancing interference management independently of environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If measurement reference signals are transmitted by multiple network entities independently, then each entity can perform its own measurements, but collisions between signals from multiple entities increase
Solution Approach 1:
The patent implements a feedback mechanism where network entities exchange configuration information about their measurement reference signal transmissions. Each entity receives feedback from others regarding their signal configurations and adjusts its own transmission parameters accordingly to avoid collisions, thereby maintaining measurement reliability while eliminating harmful signal interference.
Solution Approach 2:
The patent changes transmission parameters (such as time resources, frequency resources, or spatial parameters) of measurement reference signals based on exchanged configuration information. By dynamically adjusting these parameters according to the parameters of other entities' signals, the system avoids collisions while ensuring each entity can perform necessary measurements.
2Object-generated harmful factors
If network entities adjust their measurement reference signal configurations to avoid collisions, then signal interference is reduced, but signaling overhead increases
Solution Approach 1:
The patent applies partial action by having network entities exchange only the necessary configuration information required for collision avoidance, rather than all possible operational parameters. This selective information exchange reduces signaling overhead while still achieving the goal of interference reduction through targeted configuration adjustments.
3Reliability
If existing remote interference measurement frameworks are used, then measurement procedures can be performed, but they do not optimize gNB beam configurations to mitigate inter-gNB interference
Solution Approach 1:
The patent implements preliminary action by having network entities exchange configuration information and coordinate their measurement reference signal transmissions before actual measurements are performed. This advance coordination allows for optimization of gNB beam configurations to mitigate inter-gNB interference, rather than merely performing measurements on unoptimized signals.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for wireless communication by a first network entity, comprising obtaining a first configuration for transmission of measurement reference signals (RS) by the first network entity, wherein the first configuration is adjusted based on information regarding one or more second configurations for transmission of measurement RS by one or more second network entities, and participating in a cross link interference (CLI) measurement procedure, in accordance with the first configuration.