Dynamic HARQ Region Resource Re-allocation in Wireless Systems

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Solution Overview

Problem

In wireless communication systems using the IEEE 802.16 protocol, persistent resource allocation in HARQ regions is challenging due to location changes, which can lead to resource allocation difficulties and inefficiencies.

Innovation Solution

A method and apparatus that allow for the dynamic re-allocation of persistent resources within a new HARQ region by changing the location of these resources and updating resource allocation messages to reflect the new HARQ region's definition and identifier, ensuring seamless continuation of resource allocation even when the HARQ region's location changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If persistent resources are allocated in a HARQ region, then resource allocation efficiency is improved, but resource allocation reliability deteriorates when the HARQ region location changes

Engineering Contradiction:

Improveresource allocation efficiencyVSAvoidresource allocation reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent makes the persistent resource allocation dynamic by enabling the HARQ region location to change while maintaining persistent resource allocation. The base station can reassign persistent resources to new locations in the HARQ region when needed, allowing the system to adapt to changing conditions while preserving the efficiency benefits of persistent scheduling.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the location parameter of the HARQ region and persistently allocated resources. By allowing the location parameter to be modified while maintaining the persistent allocation relationship, the system resolves the contradiction between maintaining efficient persistent allocation and adapting to location changes.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If the HARQ region location is changed to improve system adaptability, then system adaptability is improved, but persistent resource allocation becomes difficult

Engineering Contradiction:

Improvesystem adaptabilityVSAvoidpersistent resource allocation

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent enables dynamic relocation of persistent resources within the HARQ region. When the HARQ region location changes, the base station can efficiently reassign persistent resources to new locations, maintaining ease of operation while improving system adaptability to changing network conditions.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent implements a feedback mechanism where the base station monitors HARQ region location changes and responds by reassigning persistent resources accordingly. This feedback loop ensures that persistent resource allocation remains manageable even as the system adapts to changing conditions.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS9066218B2Method and apparatus for allocating resources in a wireless communication system and system thereof

Publication Date: 2015.06.23 SAMSUNG ELECTRONICS CO LTD

AI summary

A method and apparatus for allocating resources in a wireless communication system is provided. A Base Station (BS) allocates persistent resources in a Hybrid Automatic Repeat Request (HARQ) region to a Mobile Station (MS), changes a location of the HARQ region, changes location of persistent resources in the HARQ region to location of persistent resources in a new HARQ region, and allocates the persistent resource to the MS. The new HARQ region is the location-changed HARQ region.