Neighboring Cell Beam Interference Reporting for CSI Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems fail to explicitly identify the specific beams causing interference between neighboring cells, leading to poor cell quality measurements without specifying the interfering beam or direction.
Innovation Solution
A UE is instructed to measure reference signals from a neighboring base station's beams and report an interference status to the serving base station, allowing for explicit identification of interfering beams and resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming is used to increase signal reliability and efficiency, then signal quality is improved, but interference between neighboring cells increases
Solution Approach 1:
The patent implements a feedback mechanism where UEs measure reference signals from neighboring beams and report interference status (e.g., jamming detection) to the serving base station. This feedback enables the network to identify specific interfering beams and adjust beamforming strategies to mitigate interference while maintaining signal reliability.
Solution Approach 2:
The patent changes the parameter of beam measurement by having UEs measure reference signals on resources associated with the serving base station that correspond to beams of neighboring base stations. This parameter change enables detection of inter-cell interference without compromising the primary beamforming signal quality.
2Reliability
If UEs report poor cell quality measurements, then interference detection is improved, but identification of specific interfering beams is lost
Solution Approach 1:
The patent segments the interference detection process into distinct components: measuring reference signals from specific neighboring beams, determining interference status for each beam, and reporting results separately. This segmentation preserves information about which specific beams are causing interference, enabling targeted mitigation strategies.
Solution Approach 2:
The patent introduces an intermediary measurement process where UEs measure reference signals transmitted via beams of neighboring base stations on resources associated with the serving base station. This intermediary approach allows indirect detection of interfering beams without disrupting the primary communication link, preserving beam identification information.
3Measurement precision
If UEs measure reference signals from neighboring base stations, then interference identification is improved, but measurement complexity increases
Solution Approach 1:
The patent applies preliminary action by having the serving base station configure UEs with measurement resources and parameters before actual interference measurement. The base station provides control messages indicating which resources to measure and how to process measurements, reducing UE complexity by pre-establishing measurement guidelines.
Solution Approach 2:
The patent makes the reference signal measurement process multi-functional by using the same measurement infrastructure for both channel quality assessment and interference detection. UEs use existing reference signal reception capabilities to simultaneously evaluate both signal quality and interference levels, reducing the need for separate dedicated measurement hardware.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. The described techniques provide for a first base station transmitting a control message to a user equipment (UE). The control message may include an indication to perform a measurement during one or more resources associated with the first base station and that correspond to a second base station. The UE may measure reference signals transmitting via the beam of the second base station and during the time and frequency resources of the first base station. Based on the measurements, the UE determine an interference status correspond to the beam of the second base station and transmits an indication of the interference status to the first base station.