CoMP Set Management via OAM Proactive Notification

Solution Overview

Problem

In communication systems employing the CoMP and ASA schemes, the conventional method introduces unnecessary signaling overhead and uncertainties in UE's QoS due to delayed awareness of CoMP set changes caused by ASA spectrum utilization changes.

Innovation Solution

A method and apparatus that promptly notify the serving node of changes in the CoMP set by receiving and sending change information about affected cells using ASA frequency bands that overlap with primary system protected areas, ensuring timely updates and reducing signaling overhead.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the serving node waits for UE reports to detect CoMP set changes, then the system can operate with simple conventional signaling, but the detection delay causes QoS uncertainty and unnecessary signaling overhead

Engineering Contradiction:

ImproveQoS assuranceVSAvoidCoMP set change detection delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary action by having the OAM proactively notify the serving node about CoMP set changes before the UE actually experiences them. This advance notification allows the serving node to update the CoMP set configuration proactively, eliminating the detection delay that occurs when waiting for UE reports. The OAM maintains knowledge of which cells are affected by ASA spectrum changes and communicates this information ahead of time.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by establishing a notification mechanism where the OAM provides real-time information about CoMP set changes to the serving node. This feedback loop enables the serving node to immediately adjust its CoMP operations based on current spectrum availability information, rather than relying on delayed UE measurements and reports.

Inventive Principle:

Principle #23Feedback

2Device complexity

If the serving node continues to configure CoMP measurements after spectrum evacuation, then measurement configuration remains simple, but unnecessary signaling overhead and UE measurement burden increase

Engineering Contradiction:

ImproveMeasurement configuration managementVSAvoidUE measurement and signaling overhead

Core Design Contradiction:

Device complexityVSLoss of energy

Solution Approach 1:

The system performs preliminary action by having the OAM proactively notify the serving node about CoMP set changes before the UE actually experiences them. This advance notification allows the serving node to update the CoMP set configuration proactively, eliminating the detection delay that occurs when waiting for UE reports. The OAM maintains knowledge of which cells are affected by ASA spectrum changes and communicates this information ahead of time.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by establishing a notification mechanism where the OAM provides real-time information about CoMP set changes to the serving node. This feedback loop enables the serving node to immediately adjust its CoMP operations based on current spectrum availability information, rather than relying on delayed UE measurements and reports.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS9825675B2Method and apparatus for managing coordinated multi-point set

Publication Date: 2017.11.21 NOKIA TECHNOLOGIES OY

AI summary

Embodiments of the disclosure provide methods and apparatuses for managing a COMP set in a communication system employing an ASA scheme. According to the method, change information about an affected cell is received, wherein the change information uses an ASA frequency band and overlaps with a protected area of a primary system authorized with the ASA frequency band. The change information is then sent to a serving node coordinating transmission within constituent cells of a CoMP set, to indicate a change of the CoMP set, wherein the affected cell is one of the constituent cells of the CoMP set.