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Interference group discovery for full duplex network architecture in cable network environment

A technology of wired network, interference measurement, applied in the field of communication

Inactive Publication Date: 2018-10-26
CISCO TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Network component upgrades are constrained by capital expenditure (CAPEX) budget limits

Method used

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  • Interference group discovery for full duplex network architecture in cable network environment
  • Interference group discovery for full duplex network architecture in cable network environment
  • Interference group discovery for full duplex network architecture in cable network environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] overview

[0037] An example device in a wired network includes: a processor; and a memory element in communication with the processor. The processor is configured to send the first message to at least a first cable modem of the plurality of cable modems. The first message indicates that an upstream test signal is to be generated by the first cable modem within a predetermined portion of the frequency spectrum allocated for downstream communications. The processor is also configured to: send a second message to at least a second cable modem of the plurality of cable modems. The second message indicates that downlink interference measurements are to be performed on the uplink test signal by the second cable modem. The processor is also configured to: receive at least one interference measurement indicative of a downlink interference measurement; and determine at least one interference group for the plurality of cable modems based on the at least one interference measur...

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Abstract

The disclosure relates to interference group discovery for a full duplex network architecture in a cable network environment. An example apparatus comprises a processor, and a memory element in communication with the processor. The processor configured to send a first message to at least a first cable modem of a plurality of cable modems. The first message indicates an upstream test signal to be generated by the first cable modem within a predetermined portion of a frequency spectrum allocated for downstream communication. The processor is further configured to send a second message to at least a second cable modem of the plurality of cable modems. The second message indicates a downstream interference measurement to be performed on the upstream test signal by the second cable modem. The processor is further configured to receive at least one interference measurement result indicative of the downstream interference measurement, and determine at least one interference group for the plurality of cable modems based upon the at least one interference measurement result.

Description

technical field [0001] The present disclosure relates generally to the field of communications, and more particularly to interference group discovery for full-duplex network architectures in wired network environments. Background technique [0002] Consumers' desire for bandwidth continues to grow exponentially in the wired networking market. In some wired network architectures, including remote physical layer (RPHY) utilizing digital fiber optics, the coaxial cable acts as a throughput bottleneck, preventing bandwidth growth. Typical multiple system operators (MSOs) currently have no options due to inherent technical limitations of existing cable network components. For example, Shannon's channel capacity limit (eg, a tight upper bound on the rate at which information can be reliably transmitted over a communication channel) is practically implemented in existing wired network architectures. Consumer-driven demand wants to expand spectrum beyond 1.2GHz, but traditional ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H04B3/46H04M11/06
CPCH04B3/46H04B3/54H04M11/066H04J11/003H04L1/0071H04L1/06H04L5/0073H04L5/14H04L12/2801H04L12/2885H04B3/487H04B1/38H04B17/345
Inventor 约翰·T·查普曼金航刘彤
Owner CISCO TECH INC
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