Network Switching via Data Channel Quality Evaluation

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Solution Overview

Problem

Existing communication systems face challenges in maintaining optimal network speed and service rate for terminal devices during handover from one base station to another, often resulting in suboptimal throughput and service rate post-switching.

Innovation Solution

A switching method where a source network device determines a target network device based on data channel quality information from multiple candidate network devices, ensuring optimal coverage quality and thereby improving the service rate and throughput of the terminal device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If terminal device is switched from source base station to target base station, then coverage quality is improved, but throughput and service rate may not meet requirement

Engineering Contradiction:
Improvecoverage qualityVSAvoidthroughput and service rate
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The source base station performs preliminary evaluation of candidate target base stations by obtaining their data channel quality information before switching. This allows the source base station to pre-assess which target base station can provide both coverage quality and required throughput/service rate, avoiding post-switching performance deficiencies.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanism where the source base station receives data channel quality information from candidate target base stations, evaluates their capability to meet throughput and service rate requirements, and uses this feedback to make informed switching decisions. The feedback loop ensures both coverage and performance requirements are satisfied.

Inventive Principle:
Principle #23Feedback

2Measurement precision

If multiple candidate network devices are evaluated, then target selection accuracy is improved, but switching complexity increases

Engineering Contradiction:
Improvetarget network device selection accuracyVSAvoidswitching process complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts only the essential evaluation parameter (data channel quality information) from the complex set of possible base station characteristics. By focusing on this single key parameter that directly correlates with throughput and service rate, the system achieves accurate target selection without the complexity of evaluating multiple factors.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system changes the evaluation parameter from traditional coverage-only metrics to data channel quality information that directly reflects throughput and service rate capability. This parameter transformation enables accurate selection of target base stations that meet performance requirements while simplifying the evaluation process.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12342230B2Switching method and communication apparatus
Publication Date: 2025.06.24 HUAWEI TECH CO LTD
  • US12342230B2 patent drawing
  • US12342230B2 patent drawing
  • US12342230B2 patent drawing

AI summary

A switching method includes receiving, by a source network device, N pieces of data channel quality information. The N pieces of data channel quality information are in a one-to-one correspondence with N candidate network devices. Each of the N pieces of data channel quality information is used to indicate coverage quality of a data channel between a terminal device and a candidate network device corresponding to the data channel quality information. N is an integer greater than or equal to 1. The method also includes determining, by the source network device, based on the N pieces of data channel quality information, one of the N candidate network devices as a target network device to which the terminal device is to be switched from the source network device.