Serving Node Selection via Service Profile Matching

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Solution Overview

Problem

Existing wireless communication systems, such as LTE, face challenges in accommodating the complexities of various device types and services at user equipment (UE), leading to suboptimal user experience due to inadequate serving node selection methods that do not fully consider the UE's service profile.

Innovation Solution

A method where a user equipment (UE) and radio access network (RAN) node exchange messages to determine if the RAN node supports the UE's service profile, with the RAN node selecting a serving node based on this information to ensure optimal service support, and the serving node confirms the connection by transmitting an identifier related to the service profile.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If load balancing is used for serving node selection, then network load distribution is improved, but the ability to accommodate specific device types and services deteriorates

Engineering Contradiction:
Improvenetwork load distributionVSAvoidaccommodation of device types and services
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent applies local quality by making the serving node selection process differentiated based on UE characteristics. Different UEs with different service profiles are directed to different serving nodes within the pool, rather than using a uniform load balancing approach. The RAN node examines the UE's service profile and selects appropriate serving nodes that can handle specific service types, thereby providing localized, tailored service allocation while maintaining overall load balance.

Inventive Principle:
Principle #3Local quality

2Loss of energy

If serving node selection is based on general load balancing, then network resource utilization is improved, but user experience for specific services deteriorates

Engineering Contradiction:
Improvenetwork resource utilizationVSAvoiduser experience for specific services
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The patent implements preliminary action by having the RAN node examine the UE's service profile before selecting a serving node. The system proactively identifies UEs with specific service requirements and pre-selects appropriate serving nodes that can handle those services, rather than allowing generic load balancing to assign UEs to any available node. This preliminary filtering and matching ensures that UEs are connected to serving nodes capable of supporting their specific service needs from the outset.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If serving node selection considers UE service profile, then service compatibility is improved, but selection process complexity deteriorates

Engineering Contradiction:
Improveservice compatibilityVSAvoidselection process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces an intermediary mechanism where the RAN node acts as a mediator between the UE and the serving node pool. The RAN node receives the UE's service profile, translates it into selection criteria, and matches it with appropriate serving nodes based on their capabilities. This intermediary role simplifies the overall complexity by centralizing the decision-making logic at the RAN node, which has access to both UE information and serving node capability information, rather than requiring complex direct interactions between UEs and multiple serving nodes.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3461158B1Selection of a serving node in a wireless communication system
Publication Date: 2020.06.10 QUALCOMM INC
  • EP3461158B1 patent drawingFigure 1
  • EP3461158B1 patent drawingFigure 2
  • EP3461158B1 patent drawingFigure 3

AI summary

Some aspects of the disclosure provide various methods, apparatuses and computer-readable medium configured for wireless communication. A method operable at a user equipment (UE) may include transmitting a connection request message configured to request initial connection with a radio access network (RAN) node. The connection request message may include information configured to indicate a service profile of the UE. A method operable at the RAN node may include receiving the connection request message from the UE. The connection request message may include information configured to indicate the service profile of the UE. A method operable at a serving node may include receiving a connection request message from the RAN node. The connection request message may be configured to establish communication with the UE and may include a service profile corresponding to the UE.