Access Information Table Pointer Management for 5G Network Access
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Solution Overview
Problem
Current wireless communication networks, particularly 5G systems utilizing Access Information Tables (AITs) and System Signature Sequences (SSSs), face challenges in ensuring consistent access information distribution, updating AIT content across different frequency bands and time instances, and providing differentiated access information to various wireless devices, leading to potential performance degradation.
Innovation Solution
Introducing AIT pointers within AITs that direct wireless devices to further access information compilations transmitted on different frequencies or at different times, allowing for a flexible framework to manage and update access information efficiently, reducing the need for multiple AITs and minimizing broadcasted information duplication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If access information is broadcasted on multiple frequencies and time instances, then wireless devices can access the network through multiple radio network nodes, but information consistency and updates become difficult to manage
Solution Approach 1:
The access information compilation is divided into multiple segments transmitted at different time instances and frequencies. Each segment contains a portion of the complete access information, allowing wireless devices to reconstruct the full information by combining segments from multiple transmissions. This segmentation enables flexible broadcasting across multiple channels while simplifying the management of information consistency, as updates only require modifying specific segments rather than redistributing the entire compilation.
Solution Approach 2:
The patent introduces a new dimension for information distribution by transmitting access information compilations across multiple frequency bands and time instances simultaneously. This multi-dimensional approach allows the same access information to be made available through multiple radio network nodes on different frequencies and at different times, enhancing access flexibility while maintaining information consistency through the use of identification values that link all segments to the same compilation.
2Adaptability or versatility
If multiple AITs are transmitted to provide differentiated access information, then various wireless devices receive appropriate access parameters, but information duplication increases network interference
Solution Approach 1:
Instead of transmitting multiple complete access information compilations, the patent transmits segmented portions that can be reconstructed into a single complete compilation. Wireless devices receive different segments from multiple radio network nodes and combine them to form the complete access information. This copying approach provides differentiated access information to various devices while minimizing duplication, as each device reconstructs the same complete information from distributed segments rather than receiving multiple redundant full compilations.
3Reliability
If AIT content is updated across different frequency bands, then access information remains current, but ensuring consistency becomes challenging
Solution Approach 1:
The patent incorporates forward pointers in each access information compilation segment that indicate where updated segments can be obtained. When updates are needed, the network预先 (in advance) prepares updated segments with new identification values and places them at predictable locations in the frequency-time grid. Wireless devices use these forward pointers to automatically locate and retrieve updated segments without complex update management, ensuring information currency while simplifying the update process.
Data Source
AI summary
A first network node (110, 130) provides access information enabling a wireless device (120) to access a first wireless communication network (100). The first radio network node provides (301; 801) a first access identifier (402; 502; 602; 702) and a first access information compilation (401; 501; 601; 701) identified by the first access identifier (402; 502; 602; 702). The first access information compilation (401; 501; 601; 701) identifies access information that enables the wireless device (120) to access the first wireless communication network (100) through a first radio network node (110). The first access information compilation (401; 501; 601; 701) identifies where to receive another, further access information compilation (411; 511a-b, 521; 611, 621; 711, 721) that comprises at least part of said access information and is associated with a transmission on a different frequency and/or at a different time than the first access information compilation (401; 501; 601; 701).