Uplink Resource Scheduling via Service Type Indication

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Solution Overview

Problem

Current wireless communication networks face challenges in managing uplink resources efficiently, particularly during peak hours when high traffic load forces prioritization between high and low priority users, leading to potential denial of service for time-critical low priority users despite high priority users not being significantly affected by delayed services.

Innovation Solution

User Equipment (UE) indicates the type of service requested when sending a scheduling request to the Radio Base Station (RBS), allowing the RBS to prioritize scheduling requests based on service criticality by determining current uplink resource usage and assigning resources accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If high priority UEs are favoured during high traffic load, then service reliability for high priority users is improved, but service availability for low priority users deteriorates

Engineering Contradiction:

Improveservice reliabilityVSAvoidservice availability

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent applies local quality by differentiating service handling based on service type characteristics. Time-critical services receive prioritized resource allocation while non-time-critical services are deprioritized during high load, creating localized quality adjustments rather than uniform treatment. This resolves the contradiction by ensuring reliable service for time-critical applications without completely denying service to other users.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent implements dynamic prioritization where the RBS adjusts scheduling decisions in real-time based on current service type indications from UEs and current resource usage conditions. The prioritization is not static but adapts dynamically to changing traffic patterns and resource availability, allowing the system to maintain reliability for time-critical services while preserving some service availability for others during high load periods.

Inventive Principle:

Principle #15Dynamics

2Reliability

If service prioritization is implemented based on UE category, then service quality for high priority users is improved, but service fairness deteriorates

Engineering Contradiction:

Improveservice qualityVSAvoidservice fairness

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent inverts the traditional approach by having UEs indicate their service type requirements to the RBS, rather than the RBS assigning priority based on UE category. This reversal allows the system to prioritize based on actual service needs (time-critical vs. non-time-critical) rather than predetermined UE categories, improving service fairness while maintaining quality for time-critical services.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent changes the prioritization parameter from static UE category to dynamic service type indication. By using service type as the basis for prioritization decisions, the system adapts to actual service requirements rather than fixed user categories, achieving both service quality for time-critical applications and fairness across different user scenarios.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If over-dimensioning the radio access network is done to meet peak demand, then service availability is improved, but resource utilization efficiency deteriorates

Engineering Contradiction:

Improveservice availabilityVSAvoidresource utilization efficiency

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The patent applies preliminary action by having UEs indicate their service type requirements in advance when sending scheduling requests. This allows the RBS to prepare appropriate resource allocation strategies beforehand, enabling efficient resource utilization during peak periods without requiring over-dimensioning of the network infrastructure.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent ensures continuous useful action by maintaining service availability for time-critical services during high load periods through prioritization, rather than requiring continuous over-provisioning of resources. The prioritization mechanism ensures that useful actions (time-critical transmissions) continue uninterrupted while non-urgent transmissions are deferred, maintaining service availability without the costs of over-dimensioning.

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentUS9769805B2User equipment, a radio base station and respective method therein for managing uplink resources within a coverage area of the radio base station

Publication Date: 2017.09.19 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

A UE, an RBS and respective methods therein for managing uplink resources from an RBS in a wireless communication network are provided. The method in the UE comprises determining that uplink resources are needed, and determining which type of service for which the uplink resources are needed. The method further comprises transmitting, to the RBS, a scheduling request for a scheduling grant, the scheduling request comprising an indication of the type of service for which the scheduling grant is requested.