Double Wide Communication Channels Using Segmented Sub-Channels

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Solution Overview

Problem

Current wireless communication systems face limitations in bandwidth, particularly in supporting high-bandwidth services like Gigabit Ethernet, due to regulatory constraints and the need for separate systems for high and low bandwidth users, which hinders efficient data transmission and compliance with standards.

Innovation Solution

The system employs a method to transmit data using two independent channels of predetermined bandwidth simultaneously, allowing double-wide communication channels to be used without modifying existing single-wide CPEs, enabling communication with both single-wide and double-wide devices while maintaining regulatory compliance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a single communication channel with predetermined bandwidth is used, then regulatory compliance is maintained, but the available bandwidth is insufficient for high-bandwidth services like Gigabit Ethernet

Engineering Contradiction:
ImprovebandwidthVSAvoidservice support capability
Core Design Contradiction:
Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The patent segments a single wideband channel into multiple narrower sub-channels, each compliant with regulatory bandwidth limits. These sub-channels are transmitted simultaneously to collectively provide the bandwidth of the original wide channel, enabling high-bandwidth services while maintaining regulatory compliance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from a single-dimensional channel approach to a multi-dimensional approach by using multiple sub-channels across different frequency sub-bands. This dimensional expansion allows the system to achieve greater total bandwidth while each individual sub-channel remains within regulatory limits.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Quantity of substance

If separate systems are used for high bandwidth and low bandwidth users, then bandwidth requirements are met, but device complexity and system integration increase

Engineering Contradiction:
ImprovebandwidthVSAvoidsystem integration
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent creates a universal communication system that can serve both high-bandwidth and low-bandwidth users through a single integrated architecture. The base station and CPE devices are designed to handle multiple sub-channels simultaneously, providing flexibility to support different service types without requiring separate systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Quantity of substance

If existing single-wide CPEs are modified to support double-wide channels, then bandwidth is doubled, but compatibility with existing standards and devices is lost

Engineering Contradiction:
ImprovebandwidthVSAvoidcompatibility
Core Design Contradiction:
Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The patent segments the double-wide channel into two single-wide sub-channels that are transmitted simultaneously. Existing single-wide CPEs can receive and process each sub-channel independently using their existing single-channel receivers, while double-wide CPEs can combine both sub-channels to achieve doubled bandwidth.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent designs the communication system to be universally compatible with both single-wide and double-wide CPEs. The base station transmits sub-channels in a format that single-wide CPEs can process individually, while double-wide CPEs can aggregate both sub-channels, thus maintaining backward compatibility while enabling enhanced functionality.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS7672268B2Systems and methods for implementing double wide channels in a communication system
Publication Date: 2010.03.02 TP-LINK SYSTEMS INC
  • US7672268B2 patent drawing
  • US7672268B2 patent drawing
  • US7672268B2 patent drawing

AI summary

In a system utilizing double wide communication channels, if a particular CPE requires a sustained rate that is greater than the bandwidth of a single channel, data to and from the CPE may be split across Channels A and B. Also, when the bandwidth requirements of a particular CPE peaks at a data rate greater than the capacity of a single channel, the CPE's data may be split across the two channels. In one embodiment, a single-wide CPE may communicate with the base station without knowing that it is communicating with a base station configured to communicate using a double wide channel.