ANDSF Policy Generation for Base Station Interference Control

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Solution Overview

Problem

Existing communication control systems do not effectively prevent the decline in efficiency of communication resource usage across multiple base station devices within the same access network, leading to inefficient resource allocation and potential interference.

Innovation Solution

A communication control device and method that incorporates an Access Network Discovery and Selection Function (ANDSF) to generate a connection policy that reduces the priority of connections to a base station device when another nearby base station is communicating with another device, thereby preventing resource overload and interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a wireless communication apparatus connects to a base station device based on ANDSF policy without considering restricting mode, then connection establishment is simplified, but efficiency in the use of communication resources of multiple base station devices declines

Engineering Contradiction:
Improveconnection establishmentVSAvoidcommunication resource usage efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The base station device performs preliminary actions by determining its restricting mode status and notifying the ANDSF function before connection requests are processed. The ANDSF function then incorporates this pre-determined information into connection policies, allowing wireless communication apparatus to make informed connection decisions without complex real-time negotiations, thus maintaining ease of operation while improving resource efficiency.

Inventive Principle:
Principle #10Preliminary action

2Device complexity

If multiple base station devices operate independently without coordination on connection priorities, then device complexity is reduced, but interference and resource allocation efficiency deteriorate

Engineering Contradiction:
Improvebase station coordination mechanismVSAvoidinterference between base stations
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

The system implements a feedback mechanism where base station devices notify the ANDSF function of their restricting mode status, which reflects their current communication load and interference conditions. The ANDSF function uses this feedback information to generate connection policies that coordinate connections across multiple base stations, reducing interference while maintaining manageable device complexity through centralized policy management.

Inventive Principle:
Principle #23Feedback

3Device complexity

If connection policy does not consider restricting mode of base station devices, then policy generation is simpler, but communication resource allocation efficiency decreases

Engineering Contradiction:
Improvepolicy generation processVSAvoidcommunication resource allocation efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The invention introduces a new parameter - restricting mode status - into the connection policy generation process. The ANDSF function retrieves this parameter from base station devices and incorporates it into policy decisions. This parameter change enables more efficient resource allocation without significantly complicating the policy generation process, as the restricting mode information is obtained through straightforward notification mechanisms.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11019561B2Communication control device, communication control method, wireless communication apparatus and communication control system
Publication Date: 2021.05.25 NEC CORP
  • US11019561B2 patent drawing
  • US11019561B2 patent drawing
  • US11019561B2 patent drawing

AI summary

A communication control device comprises a receiving means which receives mode information about a restriction mode which is a setting of the first base station device; and a policy generation means which generates the access policy on the basis of the mode information. When a second base station device, which is within a radio wave range in which communication is enabled with the first base station device, communicates with another wireless communication apparatus, the restriction mode is the setting in which the wireless communication apparatus performs an operation for lowering the priority of accessing the first base station device.