Smart Repeater Selective Beam Amplification for 5G Interference Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current communication systems, particularly in 5G networks, face challenges in efficiently managing channel state information reference signals between base stations and repeaters, leading to interference and suboptimal coverage due to the amplification of all signals by traditional repeaters, which increases co-channel interference and affects neighboring cells.
Innovation Solution
The implementation of a smart repeater system that uses a plurality of channel state information reference signal beams with a same radiation pattern for initial transmission from the base station to the repeater, which are then repeated and amplified with different radiation patterns to the user equipment, allowing for selective amplification of desired signals and minimizing interference by distinguishing between active and inactive beams based on signal strength measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional repeaters amplify all signals received from the base station, then signal coverage is improved, but co-channel interference in neighboring cells increases
Solution Approach 1:
The patent segments the reference signals into multiple beams with different radiation patterns. The repeater selectively amplifies only certain beams (e.g., first beam) while not amplifying others (e.g., second beam). This segmentation allows the repeater to improve coverage for intended users while avoiding amplification of signals that would cause interference in neighboring cells.
Solution Approach 2:
The patent applies different amplification qualities to different spatial directions. By identifying beams with specific radiation patterns and selectively amplifying only those directed toward the intended coverage area, the repeater provides high signal quality locally while minimizing harmful interference in other directions (neighboring cells).
2Measurement precision
If multiple reference signal beams are transmitted with different radiation patterns, then signal precision and coverage optimization are improved, but device complexity increases
Solution Approach 1:
The base station performs preliminary beam sweeping and transmits multiple reference signal beams with different radiation patterns before actual data transmission. The repeater performs preliminary identification of which beams to amplify based on these reference signals. This preliminary action enables precise channel state information measurement and beam selection without adding complexity during ongoing data transmission.
3Measurement precision
If traditional repeaters amplify all channel state information reference signals, then channel state information accuracy is improved, but interference in neighboring cells increases
Solution Approach 1:
The patent extracts and selectively amplifies only the necessary channel state information from the multiple reference signal beams. Instead of amplifying all reference signals, the repeater identifies and amplifies only those beams (first beam) that provide useful channel state information for the intended coverage area, while excluding beams (second beam) that would primarily cause interference in neighboring cells.
Data Source
AI summary
The disclosure relates to an apparatus comprising at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured, with the at least one processor, to cause the apparatus at least to: determine (1000) a plurality of channel state information reference signal beams at the apparatus, wherein the plurality of channel state information reference signal beams at the apparatus have a same radiation pattern and are time division duplexed; and use (1002) the plurality of channel state information reference signal beams to send, to a repeater, a plurality of channel state information reference signals