Inter-eNB Coordinated Multi-Point Resource Coordination

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Solution Overview

Problem

Current wireless communication systems face challenges in smoothly performing CoMP operations among cells and exchanging necessary signaling and parameters between eNBs, which affects network efficiency and user experience due to increased data traffic and high-speed service demands.

Innovation Solution

A method for Inter-eNB CoMP operation involving message exchange for resource coordination, where a first eNB requests and receives information about expected gain from a second eNB, coordinates resources based on this information, and transmits the coordination result, including parameters like frequency, time, power, and spatial domain allocations, to optimize CoMP performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If CoMP operation is performed among cells to support huge data traffic and high-speed services, then network capacity and user experience are improved, but signaling complexity and resource coordination overhead between eNBs increase

Engineering Contradiction:
Improvenetwork capacityVSAvoidsignaling complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the CoMP operation into distinct phases: initiation phase (eNB1 sends CoMP indication to eNB2), information exchange phase (eNB2 provides expected gain information), and resource coordination phase (eNB1 coordinates resources based on received information). This segmentation allows complex CoMP operations to be managed through structured, modular signaling procedures, reducing overall signaling complexity while maintaining high network capacity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements preliminary action by having eNB2 provide expected gain information about CoMP operations before actual resource coordination takes place. This advance information exchange allows eNB1 to make informed resource allocation decisions, optimizing CoMP performance while reducing the need for iterative adjustments and subsequent signaling overhead.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If detailed information exchange between eNBs is implemented for resource coordination, then CoMP operation performance is improved, but message transmission overhead increases

Engineering Contradiction:
ImproveCoMP operation performanceVSAvoidmessage transmission overhead
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The patent extracts only the essential information needed for CoMP resource coordination: the CoMP indication from eNB1, the expected gain information from eNB2, and the resource coordination result. By taking out only these critical data elements and excluding redundant information, the patent achieves reliable CoMP operation performance while minimizing message transmission overhead between eNBs.

Inventive Principle:
Principle #2Taking out (Extraction)

3Productivity

If resource coordination for CoMP is performed dynamically based on expected gain information, then network efficiency is improved, but processing complexity at eNBs increases

Engineering Contradiction:
Improvenetwork efficiencyVSAvoidprocessing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements feedback mechanisms where eNB2 provides expected gain information about potential CoMP operations to eNB1. This feedback loop enables eNB1 to dynamically coordinate resources based on actual network conditions and predicted performance benefits, improving network efficiency through data-driven decisions while keeping processing complexity manageable through structured feedback protocols.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS9894668B2Method for performing CoMP operation in wireless communication system and apparatus for the same
Publication Date: 2018.02.13 LG ELECTRONICS INC
  • US9894668B2 patent drawing
  • US9894668B2 patent drawing
  • US9894668B2 patent drawing

AI summary

The present invention discloses a method for performing a CoMP operation in a wireless communication system and an apparatus for the method. A method for performing an Inter-eNB CoMP (Coordinated Multi-Point) operation in a wireless communication system comprises receiving, by a first eNB, a message requesting initiation of a CoMP operation from a second eNB; transmitting, by the first eNB, to the second eNB a message requesting information about gain expected from a CoMP operation carried out in the second eNB; receiving, by the first eNB, the information about gain expected from the second eNB; coordinating, by the first eNB, resources for a CoMP operation based on the information of expected gain; and transmitting, by the first eNB, the resource coordination result to the second eNB.