Beam-Based Cell Segmentation for Accurate Radio Operation Control

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Solution Overview

Problem

Existing radio communication systems struggle to accurately determine radio operations due to variations in channel states across different regions, leading to potential inaccuracies in resource allocation and terminal operations.

Innovation Solution

The system divides communication areas into sub-areas based on radio channel characteristics and beam coverage, using indices such as reception power, channel gain, and Doppler shift to determine precise communication operations for terminals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a cell is divided into a plurality of fixed regions for accumulating channel-related information, then radio resources can be allocated based on region statistical information, but the region statistical information may not accurately represent the channel state of the entire region due to channel state variations across different points

Engineering Contradiction:
Improveradio resource allocation efficiencyVSAvoidchannel state representation accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The patent divides a cell into multiple regions, and each region is further divided into multiple zones based on beam coverage. This hierarchical segmentation allows for more granular channel state measurement and representation, where each zone can be associated with specific beam information and channel statistics, thereby improving the accuracy of channel state representation while maintaining efficient resource allocation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent associates different statistical information with different zones within regions, where each zone has its own channel state characteristics. This local quality approach ensures that channel state information is specific to each zone's actual conditions rather than using a single averaged value for the entire region, improving measurement precision for resource allocation decisions.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If region statistical information is used to determine radio operation for terminals, then resource allocation can be performed based on accumulated channel data, but the determination may be inaccurate when channel states vary significantly across the region

Engineering Contradiction:
Improveradio operation determinationVSAvoidradio operation accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

By segmenting regions into multiple zones and associating each zone with specific beam coverage and channel statistics, the patent enables more accurate radio operation determination. The terminal's location can be identified at the zone level rather than just region level, allowing for more precise and reliable radio operation decisions based on localized channel conditions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces beam information as an intermediary to associate terminal locations with specific channel characteristics. By using beam-associated zones as intermediaries between the terminal and the channel state database, the system can more accurately determine radio operations by referencing channel statistics specific to the terminal's actual location and beam environment.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250357992A1Method of control apparatus, method of radio terminal, and control apparatus
Publication Date: 2025.11.20 NEC CORP
  • US20250357992A1 patent drawing
  • US20250357992A1 patent drawing
  • US20250357992A1 patent drawing

AI summary

A control apparatus according to the present disclosure is a control apparatus that controls at least one base station, and includes: an area setting unit configured to divide at least one communication area of the at least one base station into a plurality of sub-areas, based on an index indicating a radio channel characteristic or a coverage area of each of a plurality of beams of the at least one base station; and a determination unit configured to determine communication operation to be applied to a target terminal, based on information related to a sub-area associated to the target terminal.