VMIMO User Equipment Pairing via Beam Coverage Segmentation
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Solution Overview
Problem
Existing VMIMO communication methods face high implementation complexity due to a large calculation amount when pairing user equipment, as each scheduled user equipment needs to attempt pairing with all unscheduled user equipment, leading to inefficiencies, especially with a large number of unscheduled user equipment.
Innovation Solution
Classifying user equipment into sets based on beam coverage ranges, where unscheduled user equipment from different sets are paired with scheduled user equipment, reducing the calculation amount and improving efficiency by limiting pairing attempts to only those outside the same set.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If each scheduled user equipment attempts pairing with all unscheduled user equipment to maximize system capacity, then pairing accuracy is improved, but calculation complexity increases significantly
Solution Approach 1:
The patent divides the sector into multiple beam coverage areas and categorizes user equipment into different sets based on their beam associations. Instead of attempting pairing between all scheduled and unscheduled user equipment, the system segments the pairing process to only consider user equipment from different beam coverage areas, significantly reducing the number of pairing attempts required while maintaining effective pairing accuracy.
2Productivity
If the number of unscheduled user equipment is large, then system capacity potential is improved, but pairing processing time increases
Solution Approach 1:
By segmenting user equipment into different sets based on beam coverage areas, the patent reduces the pairing search space from O(M×N) to O(M×k) where k is the number of user equipment in other sets. This segmentation allows the system to handle a large number of unscheduled user equipment efficiently without proportionally increasing pairing processing time.
3Reliability
If pairing attempts are performed with all unscheduled user equipment, then optimal pairing is achieved, but implementation complexity increases
Solution Approach 1:
The patent segments the pairing process by beam coverage areas, performing pairing attempts only between user equipment from different segments (beam coverage areas). This approach achieves optimal pairing within the segmented framework while significantly reducing implementation complexity compared to exhaustive pairing attempts across all user equipment.
Solution Approach 2:
The patent applies local quality by making pairing decisions based on local beam coverage area characteristics rather than global user equipment properties. Each scheduled user equipment is paired with unscheduled user equipment from different local beam coverage areas, optimizing pairing based on local spatial relationships and reducing overall system complexity.
Data Source
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AI summary
The present invention provides a virtual multiple-input multiple-output communication method and device. The method includes: determining a user set to which a user equipment in a sector belongs, where the user set includes a first user set and a second user set, a user equipment in the first user set is in a beam coverage area of a first antenna group in the sector but is not in a beam coverage area of a second antenna group of the sector, and a user equipment in the second user set is in the beam coverage area of the second antenna group but is not in the beam coverage area of the first antenna group (101); and selecting, when a scheduled user equipment belongs to the first user set, an unscheduled user equipment in the second user set for pairing, where the selected user equipment for pairing and the scheduled user equipment use a same time-frequency resource (102). For user equipments in one sector, during user equipment pairing, only an unscheduled user equipment which is not in a same set as a scheduled user equipment is selected for pairing, thereby reducing a calculation amount.