Base Station Carrier Configuration for UE Aggregation

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Solution Overview

Problem

Wireless communication networks face challenges in efficiently managing increasing traffic demands due to limited carrier aggregation capabilities in user equipment (UE), particularly with high-bandwidth applications like video streaming, which require faster carrier switching and selection to optimize bandwidth utilization.

Innovation Solution

A method for a base station to configure component carriers in UE by determining suitable carriers based on aggregation capability, sending configuration signaling to set common parameters and operations, and dynamically updating carriers to enhance bandwidth utilization and reduce transition times in carrier switching and selection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If carrier aggregation is used to increase bandwidth utilization, then traffic capacity per unit time is improved, but device complexity and UE capability requirements increase

Engineering Contradiction:
Improvetraffic capacity per unit timeVSAvoidUE capability
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments carriers into component carriers that can be individually configured and activated. The UE is configured with multiple component carriers but only activates a subset simultaneously based on its capability, allowing the network to manage bandwidth aggregation without requiring the UE to permanently support all carriers.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic carrier switching where the UE can switch between different component carriers based on network conditions and traffic requirements. The configured carriers remain available but are activated/deactivated dynamically, allowing flexible bandwidth utilization without permanent UE capability requirements.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If carrier switching is used to support more carriers than UE capability, then adaptability is improved, but transition time increases

Engineering Contradiction:
Improvecarrier support capabilityVSAvoidtransition time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent pre-configures multiple component carriers with all necessary parameters and settings before the UE needs to switch between them. This preliminary configuration eliminates the need for time-consuming reconfiguration during carrier switching, as the UE already has the carrier parameters stored and ready for immediate activation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent creates copies of carrier configurations that can be quickly switched between. Each component carrier has its configuration parameters stored as a template, allowing the UE to rapidly switch between carriers by activating pre-stored configuration copies rather than establishing new connections.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS10924228B2Communications with carrier selection, switching and measurements
Publication Date: 2021.02.16 FUTUREWEI TECHNOLOGIES INC
  • US10924228B2 patent drawing
  • US10924228B2 patent drawing
  • US10924228B2 patent drawing

AI summary

The disclosure relates to a base station configuring component carriers to user equipment (UE). The base station determines one or more component carriers to configure based on the UE carrier aggregation capability and sends a first configuration signaling to configure the UE with the component carriers in one or more component carrier sets. The base station configures each of the component carrier sets with a first common parameters and operations set and sends a second configuration signaling to configure the component carrier sets of the UE with the first common parameters and operations set. The base station then sends a third configuration signaling to configure each of the component carriers in the UE with a second parameters and operations set.