Dual-Layer SIB Bitmap Structure for Scalable Wireless Requests
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Solution Overview
Problem
Current wireless communication systems, particularly LTE, face inefficiencies in user-centric networks where users need to selectively request specific services from an access network, as existing methods are not scalable or efficient for handling multiple System Information Blocks (SIBs) requests.
Innovation Solution
A dual-layer SIB request structure is introduced, where a first layer indicates the SIB category and a second layer specifies one or more groups within the category, allowing for efficient and scalable transmission of requested SIBs between user equipment (UE) and the access network, using a bitmap structure that remains fixed in length regardless of the number of SIBs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional bitmap structure is used to indicate SIB requests, then the structure is simple, but it cannot scale efficiently when the number of SIBs increases
Solution Approach 1:
The bitmap structure is segmented into multiple layers: a first layer indicating SIB categories and a second layer indicating specific SIBs within those categories. This segmentation allows the structure to scale by adding more layers or expanding existing layers without redesigning the entire bitmap, thus achieving scalability while maintaining manageable complexity.
Solution Approach 2:
The patent transitions from a traditional single-layer bitmap to a multi-layer hierarchical structure. By adding a dimensional layer (category level) before the specific SIB indication, the system can represent a larger number of SIBs with the same or only slightly increased bitmap size, achieving scalability through dimensional expansion.
2Adaptability or versatility
If the bitmap structure length increases to support more SIBs, then more SIBs can be indicated, but the transmission size increases
Solution Approach 1:
By segmenting the SIB indication into categories and specific SIBs, the patent creates a hierarchical bitmap where fewer bits are needed to indicate categories than to list every individual SIB. This segmentation reduces the overall transmission size while still allowing indication of multiple specific SIBs through the combination of category and subset information.
Solution Approach 2:
The multi-layer structure adds a category dimension that reduces the bitmap length required for SIB indication. Instead of needing one bit per SIB in a flat structure, the hierarchical approach uses fewer bits to indicate categories, with implied or additional bits only for specific SIB selection within categories, thereby reducing total transmission size.
3Productivity
If existing SIB request methods are used, then the system is simple to implement, but network responsiveness and resource management are inefficient
Solution Approach 1:
The request structure is segmented into meaningful components (SIB categories and specific SIBs within categories), which allows the network to process and respond more efficiently. The segmentation enables targeted resource allocation and faster processing by identifying the exact subset of SIBs needed rather than handling all SIBs uniformly.
Solution Approach 2:
The hierarchical multi-layer structure adds an organizational dimension to the request that improves network responsiveness. The category layer provides a high-level classification that enables the network to route and process requests more efficiently, while the second layer provides specific details, creating a structured approach that enhances both responsiveness and resource management.
Data Source
AI summary
Aspects of the present disclosure provide a scalable SIB bitmap structure. As described herein, a UE may generate and transmit, to an access network, a dual-layer system information block (SIB) request, wherein a first layer indicates a SIB category and a second layer indicates one or more groups within the SIB category. A base station in an access network may receive, from a UE, the dual-layer SIB request. The scalable, efficient bitmap structure may be shared by the UE and access network, thereby enabling SIB-on-Demand requests by the UE and responses to SIB-on-Demand requests by the access network.