Wireless Communication Coverage Adjustment via Xn, NG, and S1

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Solution Overview

Problem

The high cost and inapplicability of Coverage and Capacity Optimization (CCO) in Long Term Evolution (LTE) for 5G scenarios due to the introduction of beamforming technology, which increases optimization costs and requires special Operation Administration and Maintenance (OAM) equipment.

Innovation Solution

A wireless communication method and device that transmits a coverage modification list through Xn, NG, or S1 interfaces between access network devices to adjust cell coverage without specialized management equipment, allowing for refined coverage adjustments using Synchronization Signal Block (SSB) status lists.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If CCO in LTE introduces special OAM equipment and beamforming technology, then coverage optimization capability is improved, but optimization cost and device complexity increase

Engineering Contradiction:
Improvecoverage optimization capabilityVSAvoidoptimization cost
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent enables access network devices to perform coverage optimization autonomously by exchanging coverage modification lists through existing interfaces (Xn, NG, or S1). The first access network device determines coverage adjustments and directly communicates these to the second access network device without requiring special OAM equipment, making the system self-sufficient for coverage optimization tasks.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent uses existing communication interfaces (Xn, NG, or S1) as intermediaries to transmit coverage modification lists between access network devices. These standard interfaces serve as mediators that carry the optimization information without requiring dedicated OAM equipment, thereby reducing device complexity while maintaining optimization capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If CCO in LTE uses specialized OAM equipment, then coverage adjustment precision is improved, but adaptability to different communication scenarios deteriorates

Engineering Contradiction:
Improvecoverage adjustment precisionVSAvoidapplicability to different scenarios
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent designs a universal coverage optimization mechanism that works across different communication systems (LTE and 5G) and different interface types (Xn, NG, S1). The coverage modification list approach is scenario-agnostic and can be applied to intra-system and inter-system CCO, making the solution versatile and adaptable to various communication scenarios without requiring scenario-specific equipment.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent achieves precise coverage adjustment by modifying transmission parameters through the coverage modification list, which includes SSB status lists and coverage adjustment indications. By changing parameters such as SSB transmission configurations and coverage ranges, the system achieves precise control while maintaining compatibility across different communication scenarios through standardized parameter exchange.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12439273B2Wireless communication method and device
Publication Date: 2025.10.07 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US12439273B2 patent drawing
  • US12439273B2 patent drawing
  • US12439273B2 patent drawing

AI summary

Provided are a wireless communication method and device. The method includes: transmitting, by a first access network device, a first message including a coverage modification list to a second access network device through at least one of an Xn interface, an NG interface, and an S1 interface. The first access network device transmits the first message to the second access network device based on the Xn interface, the NG interface, and the S1 interface.