Random Access Parameter Adjustment for 5G NR Contention Delay

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Solution Overview

Problem

In existing 5G NR systems, multiple terminal devices attempting random access simultaneously can lead to competition failures and increased access delays due to uneven distribution and unadjusted random access parameters, resulting in low efficiency.

Innovation Solution

A method where terminal devices report their random access situations to the network device, allowing it to adjust parameters such as thresholds and resource allocation to optimize access procedures, ensuring even distribution and reducing contention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If multiple terminal devices use the same random access procedure simultaneously, then the random access procedure is simple, but the access delay increases and access efficiency decreases due to competition failures

Engineering Contradiction:
Improverandom access procedure complexityVSAvoidaccess delay
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The patent introduces dynamic adjustment of random access parameters (such as thresholds and resource allocation) based on real-time terminal device distribution information. The network device continuously monitors the distribution of terminal devices and adjusts parameters dynamically to optimize random access performance, transforming the static random access configuration into a dynamic adaptive system that responds to changing network conditions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements a feedback mechanism where terminal devices report their distribution information to the network device, which then adjusts random access parameters based on this feedback. The network device uses the reported distribution information to optimize parameter configuration, creating a closed-loop control system that continuously improves random access efficiency based on actual network conditions

Inventive Principle:
Principle #23Feedback

2Device complexity

If random access parameters are not adjusted, then the configuration is simple, but terminal device distribution becomes uneven leading to increased competition and reduced access efficiency

Engineering Contradiction:
Improveparameter configuration complexityVSAvoidrandom access efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent applies preliminary action by pre-configuring multiple random access parameter sets with different threshold values and resource allocations. The network device prepares these parameter sets in advance and selects the appropriate set based on terminal device distribution information, enabling proactive optimization before competition issues arise rather than reacting after problems occur

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements parameter changes by adjusting random access parameters (such as thresholds and resource allocation configurations) based on terminal device distribution information. The network device modifies specific parameters like threshold values and resource pool allocations to optimize the random access procedure according to actual network conditions, transforming fixed parameters into adjustable variables

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If terminal devices always use the selected random access type without changing, then the access procedure is consistent, but failure to adapt to distribution changes results in increased access delays

Engineering Contradiction:
Improverandom access type consistencyVSAvoidaccess delay
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent introduces dynamic adjustment of random access parameters (such as thresholds and resource allocation) based on real-time terminal device distribution information. The network device continuously monitors the distribution of terminal devices and adjusts parameters dynamically to optimize random access performance, transforming the static random access configuration into a dynamic adaptive system that responds to changing network conditions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by adjusting random access parameters (such as thresholds and resource allocation configurations) based on terminal device distribution information. The network device modifies specific parameters like threshold values and resource pool allocations to optimize the random access procedure according to actual network conditions, transforming fixed parameters into adjustable variables

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4057764B1Method and apparatus for adjusting random access parameter, and device and storage medium
Publication Date: 2026.04.22 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • EP4057764B1 patent drawingFigure 1~3
  • EP4057764B1 patent drawingFigure 4~5
  • EP4057764B1 patent drawingFigure 6~7

AI summary

Disclosed are a method and apparatus for adjusting a random access parameter, and a device and a storage medium, which belong to the technical field of communications. The method comprises: a first terminal device sending a random access report to a network device, wherein the random access report is used to indicate a random access situation of the first terminal device; the random access report is used by the network device to adjust a random access parameter; the random access parameter is used by a second terminal device to select a random access type; and the random access type comprises two-step random access and four-step random access. Provided is a method for adjusting a random access parameter. Moreover, in the embodiments of the present application, a network device adjusts a random access parameter on the basis of a random access situation of a terminal device that has completed random access, such that the adjustment of a random access parameter can be more accurate. In addition, by means of the technical solution of the embodiments of the present application, the time delay for a terminal device to successfully access a network device can be reduced, thereby improving the efficiency of random access.