Multi-link Wireless Communication Dynamic Link Configuration

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Solution Overview

Problem

Wireless local area networks (WLANs) face challenges with access delay, transmission reliability, and throughput due to congestion and interference in shared frequency bands, particularly when multiple stations share the same medium using CSMA/CA mechanisms.

Innovation Solution

Implementing multi-link (ML) communication techniques that allow wireless stations to associate with multiple access points over multiple wireless links, using joint, selective, simplex, or duplex transmission modes across different radio frequency channels to improve signal quality and reduce latency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple stations share the same frequency channel using CSMA/CA technology, then wireless local area network connectivity is achieved, but access delay increases and transmission reliability deteriorates due to congestion and interference

Engineering Contradiction:
Improvetransmission reliabilityVSAvoidaccess delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent segments the wireless communication by dividing a single frequency channel into multiple frequency channels (first frequency channel and second frequency channel). Stations can simultaneously transmit data over these segmented channels, reducing contention and access delay while improving transmission reliability through channel diversity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from single-dimensional communication (one frequency channel) to multi-dimensional communication (multiple frequency channels). This dimensional expansion allows parallel data transmission across different frequencies, eliminating the need for stations to sequentially access a single channel, thereby reducing access delay and improving reliability.

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

2Productivity

If multiple stations share the same frequency channel using CSMA/CA technology, then wireless local area network connectivity is achieved, but transmission throughput decreases due to congestion and interference

Engineering Contradiction:
Improvetransmission throughputVSAvoidtransmission reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent segments the wireless communication by dividing a single frequency channel into multiple frequency channels (first frequency channel and second frequency channel). Stations can simultaneously transmit data over these segmented channels, reducing contention and access delay while improving transmission reliability through channel diversity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from single-dimensional communication (one frequency channel) to multi-dimensional communication (multiple frequency channels). This dimensional expansion allows parallel data transmission across different frequencies, eliminating the need for stations to sequentially access a single channel, thereby reducing access delay and improving reliability.

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

3Loss of time

If a station uses a single wireless link to communicate with an access point, then device complexity is minimized, but access delay increases and transmission reliability deteriorates

Engineering Contradiction:
Improveaccess delayVSAvoidwireless link configuration
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent segments the wireless communication by dividing a single frequency channel into multiple frequency channels (first frequency channel and second frequency channel). Stations can simultaneously transmit data over these segmented channels, reducing contention and access delay while improving transmission reliability through channel diversity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from single-dimensional communication (one frequency channel) to multi-dimensional communication (multiple frequency channels). This dimensional expansion allows parallel data transmission across different frequencies, eliminating the need for stations to sequentially access a single channel, thereby reducing access delay and improving reliability.

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

4Productivity

If a station uses a single wireless link to communicate with an access point, then device complexity is minimized, but transmission throughput decreases

Engineering Contradiction:
Improvetransmission throughputVSAvoidwireless link configuration
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the wireless communication by dividing a single frequency channel into multiple frequency channels (first frequency channel and second frequency channel). Stations can simultaneously transmit data over these segmented channels, reducing contention and access delay while improving transmission reliability through channel diversity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from single-dimensional communication (one frequency channel) to multi-dimensional communication (multiple frequency channels). This dimensional expansion allows parallel data transmission across different frequencies, eliminating the need for stations to sequentially access a single channel, thereby reducing access delay and improving reliability.

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

Data Source

PatentUS20220369403A1Multi-link communications of a wireless network with dynamic link configuration
Publication Date: 2022.11.17 ZTE CORP
  • US20220369403A1 patent drawing
  • US20220369403A1 patent drawing
  • US20220369403A1 patent drawing

AI summary

Methods, systems, and devices related to related to digital wireless communication, and more specifically, to techniques related to the multi-link operation with dynamic link configuration. In one exemplary aspect, a method for wireless communication includes transmitting a multi-link capability information from a network node indicating the network node is capable of operation on multi-link. In another exemplary aspect, the method includes receiving a multi-link capability indication message and using multi-link association request and response message exchanges to establish or update an association between a station and a network node for operation over one or more wireless links. The multi-link operation can be dynamically configured and reconfigured according to the radio channel condition changes and acquired transmission opportunity.