Dynamic Resource Block Allocation in Cellular Base Stations

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Solution Overview

Problem

In cellular communication systems, many resource blocks go unused due to interference and frequency reuse schemes, limiting communication efficiency and data transmission rates.

Innovation Solution

Base stations communicate availability of free resource blocks, reallocating unused blocks in a peer-to-peer or master-slave fashion to improve resource utilization, allowing for higher data rates and error correction in communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If frequency reuse schemes are used to manage interference, then interference control is improved, but resource utilization deteriorates

Engineering Contradiction:

Improveinterference controlVSAvoidresource utilization

Core Design Contradiction:

Object-affected harmful factorsVSQuantity of substance

Solution Approach 1:

The patent implements dynamic resource allocation where base stations exchange information about their resource block usage plans and adjust allocations in real-time. This allows the system to transition from static frequency reuse to dynamic resource sharing, improving utilization while maintaining interference control through continuous coordination.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent establishes a feedback mechanism where base stations communicate their planned resource block usage to neighboring base stations. This feedback loop enables each base station to make informed allocation decisions that account for neighboring station activities, resolving the contradiction between interference control and resource utilization.

Inventive Principle:

Principle #23Feedback

2Device complexity

If resource blocks are allocated to base stations using traditional schemes, then interference management is simplified, but communication efficiency deteriorates

Engineering Contradiction:

Improveinterference management complexityVSAvoidcommunication efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent introduces an intermediary communication layer between base stations, where information about resource block usage is exchanged. This intermediary mechanism coordinates allocations across base stations, improving communication efficiency while keeping interference management tractable through structured information exchange.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Quantity of substance

If unused resource blocks are reallocated dynamically, then resource utilization is improved, but system complexity deteriorates

Engineering Contradiction:

Improveresource utilizationVSAvoidsystem complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent segments resource blocks into groups that can be independently allocated and traded between base stations. This segmentation simplifies the dynamic allocation process by breaking down the complex resource management problem into manageable units, improving utilization without overwhelming system complexity.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS8825071B2Resource allocation in a radio communication system

Publication Date: 2014.09.02 SPARKMOTION

AI summary

A method of using resource blocks in a communication system with a plurality of Base Stations (BSs), including assigning resource blocks to a first BS, the first BS communicating to a second BS a message comprising information about at least one resource block assigned to the first BS and not planned to be used by the first BS, and the second BS receiving the message. Optionally, the second BS using the at least one resource block. Related apparatus and methods are also described.