Interference detection and interference suppression of reverse link communication in feeder link of HAPS communication system
US11641234B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 13, 2020 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Feb 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
It is detected of an interference of a reverse link communication in a feeder link of a communication relay apparatus, which tends to occur when the number of movable aerial-floating type communication relay apparatuses increases in the same area. A communication system comprises a plurality of movable aerial-floating type communication relay apparatuses that respectively include a relay communication station of performing a service-link radio communication with a terminal apparatus, plural gateway stations that respectively perform a feeder-link radio communication with the plurality of the communication relay apparatuses, and a common baseband processing apparatus connected to the plural gateway stations. The baseband processing apparatus detects an interference of the reverse link communication due to an interference wave from a relay communication station of another communication relay apparatus, the interference wave interfering with a signal wave from the relay communication station of the communication relay apparatus connected to the gateway station, based on plural reception signals received by the plural gateway stations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.