Network Device Communication Type Exchange via Wireless Air Interface

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Solution Overview

Problem

In wireless communications, existing duplex technologies face interference issues due to uneven terminal device distribution and traffic volumes, leading to co-channel interference, which is exacerbated by the high delay in wired communication type exchanges between network devices, hindering timely interference coordination.

Innovation Solution

Network devices use a wireless air interface to rapidly exchange communication types, allowing them to determine each other's communication modes, such as uplink, downlink, or idle, to minimize interference by adjusting their communication types dynamically, thereby reducing co-channel interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If wired communication type exchange is used between network devices, then communication type information can be transmitted, but transmission delay is high which hinders timely interference coordination

Engineering Contradiction:

Improvecommunication type exchange delayVSAvoidinterference coordination timeliness

Core Design Contradiction:

Loss of timeVSReliability

Solution Approach 1:

The patent replaces the wired mechanical communication system with a wireless electromagnetic communication system. Network devices exchange communication type information through wireless air interface signaling instead of physical wired connections, dramatically reducing transmission delay and enabling timely interference coordination while maintaining the ability to transmit communication type information reliably

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If flexible duplex technology is used to allow different communication types in different cells, then traffic requirements can be met, but co-channel interference increases between neighboring network devices

Engineering Contradiction:

Improvecommunication type flexibilityVSAvoidco-channel interference

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent implements a feedback mechanism where network devices monitor their communication environment and exchange communication type information with neighboring devices. Based on this feedback, devices dynamically adjust their communication types to avoid simultaneous downlink transmissions that cause interference, while still maintaining the flexibility to adapt to varying traffic demands in different cells

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent enables dynamic adjustment of communication types in different cells based on real-time traffic conditions and interference levels. Network devices can switch between uplink, downlink, and idle modes dynamically, allowing the system to maintain both adaptability to traffic requirements and control over interference through coordinated communication type selection

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP3576474B1Information transmission method and device, information processing method and device

Publication Date: 2023.11.01 HUAWEI TECH CO LTD

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AI summary

This application provides an information transmission method. The method includes: determining, by a first network device, a communication type of the first network device in a second time period; and sending, by the first network device, a signal to a second network device in a first time period through an air interface when the communication type is downlink communication or an idle communication type, where the signal is used to indicate the communication type.