OFDM Resource Allocation via Bitmap Signaling
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Solution Overview
Problem
Conventional resource allocation techniques in OFDM systems are inadequate, leading to inefficient utilization of wireless communication resources and increased signaling overhead, as they do not allow resource sharing among different user groups connected to the same base station.
Innovation Solution
The method employs bitmap signaling to efficiently allocate and share radio resources among groups by using bitmaps to indicate resource availability, allowing multiple users to share resources without increasing signaling overhead, and using different ordering patterns to prevent conflicts between scheduling groups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional resource allocation techniques are used in OFDM systems, then resource allocation can be performed, but resource utilization is inefficient and signaling overhead increases
Solution Approach 1:
The patent segments the signaling information into two distinct bitmaps: a first bitmap indicating resources allocated to a first scheduling group, and a second bitmap indicating resources allocated to a second scheduling group. This segmentation allows each group to independently monitor only its own resource allocation bitmap, eliminating the need to process combined signaling for all groups, thereby reducing signaling overhead while improving resource allocation efficiency
Solution Approach 2:
The patent creates a universal resource allocation mechanism where multiple scheduling groups share the same physical resource blocks but are differentiated through group-specific bitmap signaling. This multi-functional approach allows the same physical resources to serve multiple user groups simultaneously with optimized signaling, improving overall system productivity without increasing total signaling overhead
2Adaptability or versatility
If resources are allocated to multiple scheduling groups, then more users can be served, but conflicts may occur between groups and complexity increases
Solution Approach 1:
The patent divides users into multiple scheduling groups (first scheduling group, second scheduling group) with separate resource allocation bitmaps. Each group monitors only its own bitmap, which segments the complexity management. This allows more users to be served simultaneously while keeping individual user device complexity low, as each user only needs to interpret its own group's bitmap rather than managing conflicts across all groups
Solution Approach 2:
The patent creates equipotential conditions for different scheduling groups by allocating different physical resource blocks to different groups. This equalizes the resource availability across groups, allowing multiple user groups to operate independently without conflicts, thereby increasing system adaptability while maintaining manageable complexity through clear resource separation
Data Source
AI summary
According to an embodiment, the present invention provides a method for providing resource allocation in a wireless communication network. The method includes providing an access provider that is configured to perform orthogonal frequency division multiplexing (OFDM). The access provider is configured to allocate transmission resources. The method also includes providing a first plurality of terminals that are wirelessly connected to the access provider. The method further includes assigning the first plurality of terminals to a first scheduling group that is associated with a first plurality of resources. The first plurality of resources includes at least a first resource. The method additionally includes providing a second plurality of terminals that are wirelessly connected to the access provider. The method further includes assigning the second plurality of terminals to a second scheduling group that is associated with a second plurality of resources.