Virtual Downlink Bandwidth Allocation for Lower LTE Signal Overhead

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Solution Overview

Problem

In LTE systems, the fixed downlink transmission bandwidth leads to inflexible and high overheads and complexity in signal reception and processing, necessitating a more adaptable approach.

Innovation Solution

Implementing a bandwidth allocation method that utilizes virtual bandwidth configurations, allowing user equipment to perform signal reception and processing based on flexible virtual bandwidths, which are parts or all of the downlink maximum available bandwidth.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a fixed downlink transmission bandwidth is used in LTE system, then the system structure is simple and easy to implement, but the overheads and complexity of signal reception and processing are high and inflexible

Engineering Contradiction:

Improvesystem structureVSAvoidflexibility of signal reception and processing

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent divides the downlink transmission bandwidth into multiple virtual bandwidths, each with its own configuration information. This segmentation allows the system to select different bandwidth configurations for different signal reception and processing tasks, reducing overheads and complexity while maintaining flexibility. The bandwidth configuration information is segmented into multiple pieces, each corresponding to a specific virtual bandwidth.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces dynamic bandwidth configuration by providing multiple pieces of virtual bandwidth configuration information that can be flexibly selected and applied. The system can dynamically adjust the bandwidth configuration based on different signal processing requirements, transforming the fixed bandwidth structure into a dynamic one that adapts to varying needs, thereby reducing overheads and complexity.

Inventive Principle:

Principle #15Dynamics

2Ease of manufacture

If a fixed downlink transmission bandwidth is used in LTE system, then the configuration and implementation are straightforward, but the overheads of signal reception and processing are high

Engineering Contradiction:

Improveease of configuration and implementationVSAvoidoverheads of signal reception and processing

Core Design Contradiction:

Ease of manufactureVSQuantity of substance

Solution Approach 1:

The patent segments the bandwidth configuration into multiple virtual bandwidths, each with specific configuration information. This allows the system to allocate bandwidth more efficiently for different signal processing tasks, reducing unnecessary overheads while maintaining ease of configuration through structured bandwidth information.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent changes the bandwidth parameter by providing multiple pieces of virtual bandwidth configuration information with different bandwidth settings. The system can select appropriate bandwidth parameters based on signal processing requirements, reducing overheads while keeping the configuration process straightforward through parameter-based management.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If virtual bandwidth configuration is implemented, then the flexibility and efficiency of signal reception and processing are improved, but the device complexity increases

Engineering Contradiction:

Improveefficiency of signal reception and processingVSAvoidcomplexity of bandwidth management

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent manages complexity by segmenting bandwidth configuration into multiple independent virtual bandwidths, each with its own configuration information. This modular approach allows efficient signal processing on segmented bandwidths while managing overall system complexity through structured organization of bandwidth information.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent creates a universal bandwidth configuration framework where multiple pieces of virtual bandwidth configuration information can be applied to different signal processing scenarios. This multi-functional approach improves productivity across various operations while maintaining a unified management structure that controls complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260101320A1Bandwidth allocation method and apparatus, user equipment, and base station

Publication Date: 2026.04.09 HUAWEI TECH CO LTD

AI summary

Embodiments of the present invention provide a bandwidth allocation method and apparatus, user equipment, and a base station. The method includes: receiving, by user equipment, virtual bandwidth configuration information, where the virtual bandwidth configuration information is used for indicating a configuration of a virtual bandwidth; and performing, by the user equipment, signal reception and/or signal processing according to the virtual bandwidth indicated by the virtual bandwidth configuration information, where each virtual bandwidth is a part or all of a downlink maximum available bandwidth or a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission. In the embodiments of the present invention, reduction of overheads and reduction of complexity of signal reception and signal processing are implemented, and overheads and complexity of signal reception and processing feedback can be flexibly controlled.