A method for identifying neighboring cells based on limited information.

A three-part graph-based method identifies neighboring cells to enable power-saving modes in mobile networks by determining the minimum active cells needed for complete coverage, addressing coverage holes and interference issues.

JP2026093376APending Publication Date: 2026-06-08NTT DOCOMO INC
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
NTT DOCOMO INC
Filing Date
2025-11-26
Publication Date
2026-06-08

AI Technical Summary

Technical Problem

Mobile network operators face challenges in reducing power consumption by putting cells to sleep during low-traffic periods due to potential coverage holes, interference, and increased handover failures, especially when multiple cells are put to sleep simultaneously.

Method used

A method involving the construction of a three-part graph using UE measurement reports to identify neighboring cells, allowing for the identification of cells that can be put into a low-power state while ensuring complete coverage through a coverage algorithm that determines which cells should remain active.

Benefits of technology

Ensures complete coverage for UEs by minimizing power consumption by identifying the minimum number of active cells required, thus reducing energy usage and environmental impact without creating coverage gaps or increasing handover failures.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026093376000028
    Figure 2026093376000028
  • Figure 2026093376000029
    Figure 2026093376000029
  • Figure 2026093376000030
    Figure 2026093376000030
Patent Text Reader

Abstract

The present invention provides a method and apparatus for detecting overlapping wireless coverage of two or more cells. [Solution] The method in a mobile network communication system includes the steps of: receiving a measurement report (MR) that has been wirelessly transmitted by a user device (UE); obtaining a set of physical cell IDs (PCIs) from the MR; and identifying which combination of neighboring cells would have resulted in the set of PCIs in the UE MR by identifying the cells in each combination that have a common region of overlapping geometric wireless coverage with the UE's serving cell.
Need to check novelty before this filing date? Find Prior Art