A regionalized unlicensed random access method for large-scale terminal communication
By dividing access areas in large-scale terminal communication and configuring pilot resources based on active load and large-scale channel parameters, the problems of limited pilot resources and uneven terminal distribution are solved, thereby improving access reliability and success rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG UNIV OF TECH
- Filing Date
- 2026-06-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing unlicensed random access methods have failed to effectively address the issues of limited pilot resources, uneven spatial distribution of terminals, and coexistence of pilot reuse between regions in large-scale terminal communication. This results in severe pilot collisions in hotspot areas, reducing the overall system access success rate and the access reliability in the worst-case area.
The coverage area is divided into multiple access areas. Pilot requirements and equivalent pollution levels between areas are determined based on the active load and large-scale channel parameters of each area. Target pilot sets are configured, and pilot resources are managed through a central processing unit to suppress pilot collisions within the area and control pilot reuse between areas, thereby improving access reliability.
It improves the efficiency of pilot resource reuse, enhances the worst-case access reliability and average access success rate under hotspot load conditions, and avoids the reliability bottleneck caused by insufficient pilot resources in areas with many active terminals.
Smart Images
Figure CN122421080A_ABST