PAIR-GAIN SYSTEM WITH V.90 RATE CAPABILITIES

摘要

A pair-gain system in a communication system that communicates information between a service provider unit and a subscriber unit via the pair-gain system at a rate exceeding rates defined in the V.34 communication standard is provided. The pair-gain system includes an exchange unit (EU) operatively associated with a digital modem via a central office and a remote unit (RU) operatively associated with the EU and a V.90 compatible modem in the subscriber unit. The pair-gain system applies, preferably at the EU, noise-reduction and impairment-reduction mechanisms in order to increase communication performance and to enable communication at the rate that exceeds the rates defined in the V.34 communication standard. Each of the noise-reduction and impairment-reduction mechanisms being applied is independent of the others, and therefore each noise-reduction mechanism and each impairment-reduction mechanism may be implemented separately or in combination with other noise-reduction and impairment-reduction mechanisms.