Carrier Aggregation Management Based on Content Type

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Solution Overview

Problem

In wireless communication systems, serving user equipment (UEs) with carrier aggregation consumes more radio frequency spectrum, limiting availability for other UEs, and existing methods do not effectively manage when to apply carrier aggregation or how many carriers to aggregate based on the type of content being communicated.

Innovation Solution

A method and system that determine the type of content to be communicated between a base station and a UE, deciding whether to apply carrier aggregation and how many component carriers to aggregate, by modifying the air interface connection to encompass the determined number of carriers, thereby optimizing spectrum use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If carrier aggregation is applied to serve a UE, then the data rate and throughput for that UE is improved, but the radio frequency spectrum consumption increases, limiting availability for other UEs

Engineering Contradiction:
Improvedata rateVSAvoidradio frequency spectrum
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The patent implements dynamic carrier aggregation management where the base station adjusts the number of component carriers assigned to each UE based on real-time conditions. The system determines content type (e.g., video, audio, data) and dynamically decides whether to apply carrier aggregation and how many carriers to allocate, making the spectrum allocation flexible and adaptive rather than static

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the parameter of carrier aggregation configuration based on content type identification. Different content types trigger different aggregation levels - for example, high-bandwidth content like video may warrant carrier aggregation while lower-bandwidth content like text or audio may use single-carrier operation, thereby optimizing spectrum utilization according to actual service requirements

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the number of component carriers is increased for a UE, then the throughput is improved, but the spectrum availability for other users decreases

Engineering Contradiction:
ImprovethroughputVSAvoidspectrum availability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent applies different spectrum allocation strategies to different UEs based on their specific content requirements. Instead of uniform carrier aggregation allocation, the system identifies the content type for each UE and allocates component carriers locally optimized for that specific service, ensuring each UE receives appropriate spectrum resources without over-provisioning that would harm overall network efficiency

Inventive Principle:
Principle #3Local quality

3Productivity

If carrier aggregation is applied without considering content type, then the data rate is improved, but the spectrum efficiency of the network decreases

Engineering Contradiction:
Improvedata rateVSAvoidspectrum efficiency
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The system performs preliminary identification of content type before finalizing the carrier aggregation configuration. By determining whether the content requires high bandwidth (such as video streaming) or can be served with standard bandwidth (such as web browsing or messaging), the network proactively configures the appropriate number of component carriers in advance, preventing unnecessary spectrum consumption

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9820289B1Method and system for managing quantity of carriers in air interface connection based on type of content
Publication Date: 2017.11.14 SPRINT SPECTRUM LLC
  • US9820289B1 patent drawing
  • US9820289B1 patent drawing
  • US9820289B1 patent drawing

AI summary

A method and system for managing quantity of carriers to aggregate together in carrier aggregation service, based at least in part on consideration of the type of content that will be communicated to or from the user equipment device (UE) at issue. A base station serving the UE may determine a type of content that will be communicated between the base station and the UE and, based at least on the determined type of content, may decide whether to apply carrier aggregation and, when the decision is to apply carrier aggregation, determine, based at least on the determined type of content, how many component carriers to aggregate together in the carrier aggregation service of the UE. The base station may then modify an air interface connection with the UE to encompass the determined number of component carriers.