Sidelink CSI Reporting Aggregation for Uplink Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing interference and resource allocation for sidelink communications, particularly in reporting sidelink channel state information (CSI) across multiple remote user equipments (UEs), which affects the performance of uplink control information (UCI) messaging.
Innovation Solution
The system enables user equipments (UEs) to obtain UCI message resource allocations, receive sidelink CSI reports from neighboring UEs, and transmit these reports back to the serving base station, allowing for better resource management and allocation for sidelink UCI messaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station transmits data and control information on downlink and receives data and control information on uplink, then communication services are provided to multiple users, but interference from neighbor base stations and other wireless RF transmitters degrades performance
Solution Approach 1:
The patent introduces a relay UE as an intermediary device between the base station and remote UEs. The relay UE receives downlink transmissions from the base station, processes them, and forwards them to remote UEs via sidelink communications. This intermediary approach allows the base station to communicate with remote UEs without direct interference affecting the downlink transmission path, while the relay UE handles the challenging interference-prone uplink transmissions to remote UEs.
2Adaptability or versatility
If more UEs access wireless communication networks to meet growing demand for mobile broadband access, then service coverage is expanded, but interference and network congestion increase
Solution Approach 1:
The patent segments the network into different communication paths: traditional base station-UE uplink/downlink paths for near-field UEs, and relay-based sidelink paths for remote UEs. This segmentation allows the system to handle different types of traffic through different channels, reducing congestion on the base station uplink and enabling service expansion to remote areas without proportionally increasing interference at the base station.
3Measurement precision
If sidelink CSI reports from multiple remote UEs are aggregated and transmitted via UCI messaging, then resource allocation accuracy is improved, but the complexity of managing and transmitting control information increases
Solution Approach 1:
The patent merges multiple sidelink CSI reports from different remote UEs into a single aggregated UCI message that is transmitted together. Instead of managing and transmitting separate control information for each remote UE, the system combines their CSI reports into one unified message structure, reducing the overall complexity of control information management while maintaining the ability to allocate resources accurately based on aggregated channel state information.
Data Source
AI summary
This disclosure provides systems, methods, and devices for wireless communication that support reporting of sidelink channel state information (CSI) for multiple remote sidelink user equipments (UEs). In a first aspect, a method of wireless communication includes obtaining an uplink control information (UCI) message resource allocation for sidelink CSI reporting. The method further includes receiving at least one sidelink CSI report from one or more sidelink UEs in communication with the UE and transmitting a UCI message with the UCI message resource allocation including one or more sidelink CSI reports of the at least one sidelink CSI report. Other aspects and features are also claimed and described.