Network Entity Radio Resource Management Mode Selection

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Solution Overview

Problem

Current D2D communication networks face challenges in radio resource management, particularly in initial V2V service deployment phases where eNB capabilities may not be available, leading to high signaling overhead, latency, and reduced reliability due to mode 1 and mode 2 limitations.

Innovation Solution

A network entity with a communication interface and processor that selects a radio resource management mode based on communication quality measures such as network latency and reliability, allowing for flexible resource allocation and minimizing multi-user interference, and enabling mobile automotive operators to optimize V2X communications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mode 1 (eNB-based resource allocation) is used, then resource allocation reliability is improved, but signaling overhead and latency increase

Engineering Contradiction:

Improveresource allocation reliabilityVSAvoidsignaling latency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent implements dynamic mode selection between mode 1 and mode 2 based on communication quality measures. The network entity monitors communication quality and dynamically switches the resource management mode for each UE, allowing the system to adapt between centralized (mode 1) and distributed (mode 2) resource allocation based on real-time conditions, thus balancing reliability and latency requirements.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameter (resource management mode) based on communication quality measures such as latency and reliability thresholds. By adjusting the mode parameter dynamically, the system optimizes the trade-off between centralized control benefits and signaling overhead penalties.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If mode 1 (eNB-based resource allocation) is used, then resource allocation reliability is improved, but signaling overhead increases

Engineering Contradiction:

Improveresource allocation reliabilityVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The system dynamically selects between mode 1 and mode 2 based on communication quality, reducing unnecessary signaling overhead by switching to mode 2 when communication conditions permit distributed operation, while maintaining mode 1 only when its reliability benefits are needed.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent enables UEs to autonomously select resources in mode 2, eliminating the need for continuous eNB signaling and control messages. This self-service approach significantly reduces signaling overhead while maintaining acceptable resource allocation performance under suitable conditions.

Inventive Principle:

Principle #25Self-service

3Loss of information

If mode 2 (autonomous UE resource selection) is used, then signaling overhead is reduced, but reliability decreases

Engineering Contradiction:

Improvesignaling overheadVSAvoidresource allocation reliability

Core Design Contradiction:

Loss of informationVSReliability

Solution Approach 1:

The network entity dynamically monitors communication quality and switches UEs between mode 2 (low overhead) and mode 1 (high reliability) based on real-time conditions, ensuring that mode 2 is only used when communication quality supports autonomous operation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system implements feedback mechanisms where UEs report communication quality measures to the network entity, which uses this feedback to determine the appropriate resource management mode, ensuring reliability requirements are met while minimizing signaling overhead.

Inventive Principle:

Principle #23Feedback

4Adaptability or versatility

If mode 2 (autonomous UE resource selection) is used, then operator control flexibility is improved, but resource allocation reliability decreases

Engineering Contradiction:

Improveoperator control flexibilityVSAvoidresource allocation reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent provides operators with dynamic control flexibility to choose between mode 1 and mode 2 for different UEs based on service requirements and communication conditions, while maintaining reliability through automated mode selection and network entity supervision.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system allows operators to adjust operational parameters such as mode selection thresholds and communication quality measures, providing flexibility in optimizing the balance between autonomous operation benefits and reliability requirements for different deployment scenarios.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11234248B2Network entity for flexibly managing radio resources for user equipments in a D2D communication network

Publication Date: 2022.01.25 HUAWEI TECH CO LTD

AI summary

A network entity for flexibly managing radio resources for a plurality of user equipment in a communication network is provided. The network entity includes: a communication interface configured to communicate with a user equipment of the plurality of user equipment; and a processor configured to obtain a communication quality measure associated with the communication between the network entity and the user equipment and to select a radio resource management mode for the user equipment on the basis of the communication quality measure.