Base Station Control Signal Segmentation for Multi-AP Coordination

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Solution Overview

Problem

Existing methods for controlling Multi-AP coordination in wireless local area networks (WLANs) are not sufficiently discussed, leading to inefficiencies in radio communication.

Innovation Solution

A base station is equipped with control circuitry that generates common and user-specific information, and transmission circuitry that transmits control signals including this information, enabling more efficient control of Multi-AP coordination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional control methods are used for Multi-AP coordination, then the system is simpler to implement, but signaling overhead increases and throughput decreases

Engineering Contradiction:

ImprovethroughputVSAvoidsignaling overhead

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

The control signal is segmented into two distinct parts: common information applicable to all users and user-specific information tailored to individual users. This segmentation allows the base station to efficiently broadcast shared resource allocation details while minimizing redundant signaling for each user, thereby reducing overall signaling overhead and improving throughput in Multi-AP coordination scenarios.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies partial action by providing complete common information to all users while providing only necessary user-specific information to each individual user. This avoids the excessive signaling that would occur if full control information were transmitted to every user, thus reducing signaling overhead while maintaining system productivity.

Inventive Principle:

Principle #16Partial or excessive action

2Manufacturing precision

If detailed user-specific information is transmitted to each user, then resource allocation precision improves, but signaling overhead increases

Engineering Contradiction:

Improveresource allocation precisionVSAvoidsignaling overhead

Core Design Contradiction:

Manufacturing precisionVSLoss of information

Solution Approach 1:

By dividing control information into common and user-specific segments, the system achieves precise resource allocation for each user through targeted user-specific information while using the common information segment to convey shared allocation details that apply to multiple users, thereby reducing redundant signaling overhead.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The common information serves a universal function by being applicable to all users simultaneously, conveying resource allocation details that multiple users can utilize. This multi-functionality reduces the need for repeating the same information in each user-specific message, thus maintaining allocation precision while reducing signaling overhead.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250039863A1Base station, transmission method, and reception method

Publication Date: 2025.01.30 PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

AI summary

The present invention enables more efficient control of Multi-AP coordination. A base station, according to the present invention, comprises: a control circuit that generates shared information that is shared among a plurality of users and includes information pertaining to unassigned resources, and individual user information specific to each of the plurality of users; and a transmission circuit that transmits a control signal comprising the shared information and the individual user information.