Joint Precoding for Smart Repeater and Base Station
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing precoding technologies for smart repeaters/RIS and base stations require separate algorithms, leading to high complexity when jointly designed.
Innovation Solution
A precoding method that involves obtaining precoding information from a network-side device, which is determined based on PMI information from multiple UE, and using this information to precode an incident beam and form a composite beam for emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate algorithms are used for smart repeater/RIS precoding and base station precoding, then the precoding can be implemented independently for each device, but the overall system complexity increases when jointly designed
Solution Approach 1:
The patent combines the precoding operations of the base station and smart repeater/RIS into a unified joint precoding algorithm. The base station performs precoding based on PMI information from multiple UEs, and the smart repeater/RIS applies additional precoding to the reflected beams, merging both operations into a coordinated system that reduces overall complexity compared to separate independent designs.
Solution Approach 2:
The patent creates a universal precoding framework that can be applied to both base station and smart repeater/RIS devices. The same PMI-based precoding methodology is used across different device types, allowing the system to handle multiple device functions through a unified approach rather than requiring device-specific algorithms.
2Reliability
If joint precoding design is implemented for smart repeater/RIS and base station, then the precoding performance is improved, but the computational complexity increases
Solution Approach 1:
The patent performs preliminary precoding at the base station using PMI information from multiple UEs before the signal reaches the smart repeater/RIS. This preliminary action prepares the signal in advance, allowing the smart repeater/RIS to apply simpler subsequent precoding operations, thereby improving overall performance while managing computational complexity through staged processing.
Solution Approach 2:
The joint precoding process is segmented into distinct stages: first, the base station performs precoding based on PMI information from multiple UEs; second, the smart repeater/RIS performs additional precoding on the reflected beams. This segmentation allows each device to perform optimized precoding operations independently, improving overall system performance while distributing computational complexity across multiple devices rather than concentrating it in one location.
Data Source
AI summary
Processing methods and apparatuses, communication apparatuses, and storage mediums are provided for precoding information to improve service quality in a wireless communication system. The service quality is improved by: Precoding information sent by a network-side device is obtained, an incident beam is precoded based on the precoding information to form a composite beam, and the composite beam is emitted. The provided methods can reduce the complexity of precoding.