Distributed Transmit Unit Clustering for Joint Data Transmission
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Solution Overview
Problem
Existing joint data transmission technologies in distributed antenna systems are overly complex, leading to inefficiencies in managing mutual interference between user equipment.
Innovation Solution
The method involves dividing distributed transmit units into subclusters and selecting target user equipment for joint data transmission, using a baseband processing unit to perform MAC and physical layer processing, which reduces computational complexity and minimizes interference by using all distributed transmit units for joint scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If joint data transmission is performed using all distributed transmit units, then interference between user equipments is reduced, but computational complexity increases
Solution Approach 1:
The patent divides distributed transmit units into multiple subclusters, where each subcluster performs joint data transmission independently for its assigned user equipment. This segmentation reduces the computational complexity from considering all transmit units globally to considering only local subcluster members, while still achieving interference reduction within each subcluster.
Solution Approach 2:
The patent applies different processing strategies to different subclusters based on their local characteristics. Each subcluster performs MAC layer and physical layer processing independently, allowing local optimization of interference management while reducing overall system complexity through distributed processing.
2Productivity
If distributed transmit units transmit data to their served user equipment independently, then transmission efficiency is maintained, but mutual interference occurs between user equipments
Solution Approach 1:
By segmenting transmit units into subclusters and assigning specific user equipment to each subcluster, the system maintains efficient local transmission while eliminating interference between different user equipment through spatial separation and coordinated resource allocation within subclusters.
Solution Approach 2:
The patent merges multiple distributed transmit units within each subcluster to perform coordinated joint transmission to their assigned user equipment. This combining of transmit units within subclusters enables interference cancellation and coordination, resolving the mutual interference problem while maintaining high transmission efficiency through collaborative processing.
Data Source
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AI summary
This application provides a joint data transmission method and a device. All distributed transmit units are divided into clusters, target user equipment is selected from each subcluster, and further, grouping is performed on a user equipment basis to reduce a quantity of dimensions, so that a joint transmission parameter is determined, and joint data transmission is performed. In this way, interference between subclusters can be avoided, and complexity is reduced, thereby improving system performance.