Deutschetelekom Ag

Dirk Von Hugo

Jakob Belschner

Paul Arnold

Hans Joachim Einsiedler

Friedrich Ruecker

Gerd Ortgies

Friedrich Dintelmann

Roman Szczepanski

Kay Hänsge

A radio communication network includes: at least one base station configured to transmit a data flow to at least one user equipment by using radio resources scheduled to the at least one base station for transmission of the data flow; a radio scheduler configured to schedule the radio resources to the at least one base station according to a scheduling metric; a monitoring entity, configured to monitor performance information from the at least one base station; a controller, configured to adjust the scheduling metric of the radio scheduler based on the monitored performance information of the monitoring entity; and a database configured to store a plurality of scheduling metrics. The controller is configured to replace the scheduling metric with one of the scheduling metrics stored in the database or with a combination of scheduling metrics stored in the database.

Radio communication network with radio scheduler

An improved digital radio communication apparatus and method for communicating in a satellite-supported VSAT network consisting of a plurality of VSAT member stations and at least one central station or hub. Both the apparatus and method concern VSAT systems performing voice, video and data communication in meshed networks comprising at least one central station or hub and VSAT stations via a satellite. The hub sends its information via at least one of its earth stations to the VSAT stations and receives at other frequencies the messages sent by the VSAT stations. Transmission frequencies and allowable overall bit rates are established by the hub as a function of the propagation conditions prevailing on the individual satellite paths. Member traffic is classified as time-critical traffic (ZKV) or non-time-critical traffic (ZUV). A hub comprises two or more earth stations or diversity stations linked by a terrestrial line with traffic always conducted via the earth station or diversity station suffering the least propagation effects and/or system component failures. The central station or hub assigns the individual members, upon request, a secure frequency, at which higher transmission quality is achieved due to lower intermodulation interference, with this assignment possibly referring to a narrow-band transmission channel through which direct telephone traffic can be conducted between two members, avoiding double hop.

Digital radio communication apparatus and method for communication in a satellite-supported VSAT network

Growing community of inventors

Darmstadt, Germany

Dirk Von Hugo