Near End Cross Talk Reduction for a Mimo System

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This patent proposes a new method and device for reducing near end crosstalk (NEXT) in Multiple-Input Multiple-Output (MIMO) communication systems, such as those used in DSL and wireless networks. By using collaborative processing at one or more network elements (e.g., central office or base station), the system can identify and cancel out interference between upstream and downstream traffic, even when they overlap in frequency. The innovation utilizes algorithms to estimate and cancel the crosstalk in real-time, improving data transmission quality and efficiency.

Use CasesContent extracted from patent full text and abstract with AI.

• Enhanced DSL (ADSL, VDSL, VDSL2) systems with higher data rates and lower interference
• MIMO wireless systems such as cellular networks, base stations, and Wi-Fi access points
• Fiber-to-the-home (FTTH) or fiber-fed cabinets using copper last-mile infrastructure
• Triple-play services (Internet, TV, Voice) delivery over legacy telephone lines
• Any communication system that uses multiple transmitters/receivers and is affected by crosstalk and interference
• Implementation in dynamic spectrum management controllers and DSLAMs to upgrade existing networks

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly improved spectral efficiency by allowing upstream and downstream signals to share the same frequency bands with minimal interference
• Reduction of near end crosstalk leads to higher signal-to-noise ratios and faster, more reliable data transmission
• Enables use of existing copper wiring infrastructure for higher performance without major hardware upgrades
• Flexible and scalable solution applicable to both wireline and wireless MIMO systems
• Supports higher data rates and longer reach for DSL-based services
• Can be implemented in software or hardware, offering cost-effective network upgrades

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Inventors & Applicants

Patent Abstract

A method and a device for data processing in a network element of a MIMO system are provided, wherein near end cross talk is reduced at a collaborative network element of the MIMO system; and wherein a frequency band is at least partially used for upstream and downstream traffic. Furthermore, an interference canceller and a communication system are suggested.