RACH Parameter Optimization via UE Failure Feedback

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Solution Overview

Problem

Existing communication systems face inefficiencies in random access and resource allocation due to improper configuration of random access channel (RACH) parameters, leading to lower success rates and system capacity issues.

Innovation Solution

User Equipment (UE) records and reports random access or resource request failure information to the network device, enabling network management to optimize RACH parameters and improve allocation efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If RACH parameters are configured without failure feedback, then the system structure remains simple, but random access success rate and system capacity are reduced

Engineering Contradiction:
Improverandom access success rateVSAvoidparameter optimization complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a feedback mechanism where the UE records random access failure information and reports it to the network device. The network device uses this feedback to optimize RACH parameters dynamically, thereby improving random access success rate and system capacity while managing complexity through structured information collection and processing.

Inventive Principle:
Principle #23Feedback

2Productivity

If failure information recording and reporting is implemented, then parameter optimization capability is improved, but UE and network processing complexity increases

Engineering Contradiction:
Improveparameter optimization efficiencyVSAvoidinformation processing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The UE autonomously records failure information and determines when to report it to the network device without requiring continuous network control. This self-service approach enables the UE to manage its own optimization data while reducing network processing burden, thereby improving optimization efficiency while controlling complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent extracts only the essential failure information needed for optimization from the complete random access process logs. By selecting and reporting only critical parameters rather than all data, the system reduces information processing complexity while maintaining sufficient data for effective parameter optimization.

Inventive Principle:
Principle #2Taking out (Extraction)

3Loss of time

If RACH resource allocation is not optimized based on failure data, then system operation remains simple, but call setup delay and handover delay increase

Engineering Contradiction:
Improvecall setup delayVSAvoidresource allocation complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The system performs preliminary recording of failure information during random access attempts, which is then used for subsequent parameter optimization. This preliminary action enables the network to learn from past failures and adjust resource allocation in advance, reducing call setup delay and handover delay without requiring complex real-time optimization during active communication.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3817434B1RACH parameter optimization based on failure information recorded by UE and reported according to an indication from the network
Publication Date: 2023.08.23 VIVO MOBILE COMM CO LTD

AI summary

A method for data transmission, a method for parameter optimization, an apparatus, and a device are provided. The method for data transmission includes: initiating, by user equipment UE, a random access request or a resource request to a network device; recording, by the UE, random access failure information or resource request failure information; and when detecting that the UE has successfully accessed the network device, sending the random access failure information or the resource request failure information to the network device, so that the network device sends the random access failure information or the resource request failure information to a network management device for parameter optimization processing.