Coexistence test apparatus

By designing a coexistence testing device and using a satellite communication comprehensive tester and a vector signal generator to simulate signal excitation, a complex coexistence scenario was constructed. This solved the problem of mutual interference testing between terrestrial cellular networks and satellite communication networks in shared frequency bands, achieving efficient and accurate testing results and ensuring the security and system performance of spectrum sharing.

CN224418953UActive Publication Date: 2026-06-26CHINA ACADEMY OF INFORMATION & COMM
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA ACADEMY OF INFORMATION & COMM
Filing Date
2025-08-14
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively test the mutual interference between terrestrial cellular networks and satellite communication networks in shared frequency bands, making it difficult to define the boundaries of spectrum sharing security and system performance.

Method used

A coexistence testing device was designed, including a satellite communication comprehensive tester, a vector signal generator, a combiner, a power divider, a switching network, and a shielding box. By simulating different signal standards to excite the terminal under test, a complex coexistence scenario is constructed, the mutual interference effect is quantified, and parallel testing of multiple terminals is supported.

Benefits of technology

It enables efficient and accurate coexistence testing, clarifies system performance boundaries, supports the rapid construction of complex coexistence scenarios, improves testing efficiency and accuracy, and ensures the security and system performance of spectrum sharing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224418953U_ABST
    Figure CN224418953U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of coexistence testing device, it is related to communication test technical field, comprising: satellite communication comprehensive measuring instrument, vector signal generator, combiner, power divider, switch network and shield box;Satellite communication comprehensive measuring instrument is connected with the first input end of combiner by coaxial line, and with the satellite terminal to be measured to establish signalling connection;Vector signal generator is connected with the second input end of combiner by coaxial line, for generating satellite communication signal and ground wireless communication network signal, excitation satellite terminal to be measured inside shield box, by the signal simulation different system non-target satellite communication signal and ground wireless communication network signal to the influence of target satellite signal reception, test signal coexistence;The output end of combiner is connected with the input end of power divider by coaxial line;The output end of power divider is connected with the corresponding input port of switch network by coaxial line;The output port of switch network is connected with satellite terminal to be measured inside shield box by coaxial line.
Need to check novelty before this filing date? Find Prior Art