Channel List Exchange for Stable Multi-Terminal Communication

Solution Overview

Problem

In many-to-many networks, terminals with limited dual band capabilities experience unstable data transmission and poor user experience due to inconsistent channel usage for internet access and communication, leading to increased delays.

Innovation Solution

Terminals exchange channel lists and determine a common channel for communication based on their supported channels, frequency bands, and chip capabilities, avoiding dual band adaptive concurrent modes to operate in intra-frequency and intra-channel modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If terminals operate in dual band adaptive concurrent mode to enable internet access and communication on different channels, then channel flexibility is improved, but data transmission stability deteriorates due to frequent channel switching

Engineering Contradiction:

Improvechannel flexibilityVSAvoiddata transmission stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies preliminary action by having terminals exchange channel lists and capabilities before establishing the actual communication connection. The first terminal sends its supported channel list to the second terminal, and they jointly determine a common channel in advance. This preliminary channel selection ensures that both terminals operate on the same channel from the start, avoiding the need for frequent channel switching during data transmission and thereby improving stability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary mechanism in the form of a channel negotiation protocol that mediates between the internet access channel and communication channel requirements. Instead of directly switching between channels, the system uses channel list exchange and common channel determination as an intermediary step to resolve channel conflicts, ensuring consistent channel usage for both internet access and peer-to-peer communication.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If terminals use different channels for internet access and communication, then channel utilization efficiency is improved, but transmission delay increases due to channel inconsistency

Engineering Contradiction:

Improvechannel utilization efficiencyVSAvoidtransmission delay

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent merges the channel selection for internet access and peer-to-peer communication into a single consistent channel. By exchanging channel lists and determining a common channel that both terminals support, the system combines what would otherwise be separate channel assignments into one unified channel usage pattern. This eliminates the need to switch between different channels for different purposes, thereby reducing transmission delay while maintaining efficient channel utilization.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If terminals without DBDC capability operate in DBAC mode to access different channels, then operational flexibility is improved, but user experience deteriorates due to unstable connection

Engineering Contradiction:

Improveoperational flexibilityVSAvoiduser experience

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent applies preliminary action by having terminals exchange channel lists and capabilities before establishing the actual communication connection. The first terminal sends its supported channel list to the second terminal, and they jointly determine a common channel in advance. This preliminary channel selection ensures that both terminals operate on the same channel from the start, avoiding the need for frequent channel switching during data transmission and thereby improving stability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback by having terminals exchange channel capability information and receive feedback about supported channels. The first terminal receives channel list information from the second terminal and uses this feedback to determine the common channel. This feedback mechanism ensures that both terminals agree on a compatible channel, providing stable operation and good user experience even for terminals without advanced dual band dual concurrent capabilities.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20250324470A1Channel determining method and related apparatus

Publication Date: 2025.10.16 HUAWEI TECH CO LTD

AI summary

This application provides a channel determining method and a related apparatus, to reduce a data transmission delay and improve user experience. The method includes: A first terminal sends a first channel list to a second terminal, where the first channel list includes a channel supported by the first terminal; the first terminal receives a second channel list from the second terminal, where the second channel list includes a channel supported by the second terminal; and the first terminal communicates with the second terminal through a third channel, where the third channel is a channel included in the first channel list and the second channel list.