UE-Centric Access via Dedicated Connection Signatures
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Solution Overview
Problem
Current UE network access schemes are inefficient due to limited access sequences per cell, requiring frequent initial entry setups and handover processes, which are costly and inefficient, especially in scenarios with high UE density and transmit point virtualization.
Innovation Solution
A UE-centric unified system access network using dedicated connection signatures (DCS) that allows for active access across multiple transmission/receive points, decoupling UEs from specific points and enabling fast, contention-free connections through intelligent code and access management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a cell-based access scheme with limited access sequences is used, then the network can maintain simple cell structure and management, but the signaling overhead increases and connection efficiency decreases due to frequent initial entry setups and handover processes
Solution Approach 1:
The patent segments the access sequence pool into cell-specific sequences and UE-specific sequences. Cell-specific sequences are used for initial access and cell identification, while UE-specific sequences are assigned and maintained across cell boundaries. This segmentation allows the system to maintain simple cell structures while improving connection efficiency by reducing handover-related signaling overhead.
Solution Approach 2:
The patent inverts the traditional cell-centric access model by introducing a UE-centric approach where UEs are assigned dedicated sequences that follow them across cell boundaries. Instead of UEs adapting to cell-specific sequences, the system adapts by having cells recognize and support UE-specific sequences, thereby reducing handover complexity and improving connection efficiency.
2Adaptability or versatility
If UEs release access sequences when not in use to make them available to other UEs, then the limited number of access sequences can be shared efficiently, but the connection setup becomes longer and less efficient when UEs need to transition back to active mode
Solution Approach 1:
The patent applies preliminary action by pre-assigning UE-specific access sequences to UEs during initial access and maintaining these assignments across cell boundaries and idle/active state transitions. This preliminary assignment eliminates the need for UEs to re-acquire sequences during handovers or state transitions, significantly reducing connection setup time while still allowing efficient sequence management.
Solution Approach 2:
The patent makes access sequences universal by designing UE-specific sequences that can be used across multiple cells and different operational states (idle/active). Instead of cell-specific sequences that are valid only within a single cell, the universal UE-specific sequences can be recognized and used by multiple cells, enabling seamless handovers and reducing reconnection overhead.
3Adaptability or versatility
If handover process is implemented on cell boundaries, then UEs can switch between cells, but the signal strength is limited and link quality deteriorates, requiring additional initial entry setup processes
Solution Approach 1:
The patent inverts the traditional handover approach by maintaining UE-specific sequence assignments across cell boundaries rather than reassigning cell-specific sequences during handover. This inversion allows UEs to maintain continuous connectivity and reliable links when crossing cell boundaries, as the network nodes are configured to recognize and support the UE's dedicated sequence throughout the transition.
Solution Approach 2:
The patent ensures continuity of useful action by maintaining UE-specific access sequence assignments continuously across cell boundaries and operational states. Instead of interrupting the connection process during handovers or state transitions, the system maintains continuous validity of the UE's access sequence, enabling seamless transitions without link quality deterioration or additional setup processes.
4Productivity
If transmit point virtualization is implemented to increase radio access capacity, then the network can dynamically select transmit/receive points, but the traditional fixed one-to-one mapping between UE and cell no longer exists, making the current access scheme incompatible
Solution Approach 1:
The patent applies universality by designing UE-specific access sequences that are not tied to any single cell or transmit point. These universal sequences can be recognized and used by multiple transmit points, enabling transmit point virtualization where the network can dynamically select which transmit point serves which UE without requiring changes to the UE's access sequence. This maintains compatibility with the access scheme while enabling flexible resource allocation.
Solution Approach 2:
The patent segments the access sequence functionality into cell-specific identification (handled by cell-specific sequences during initial access) and UE-specific connectivity (handled by UE-specific sequences). This segmentation allows the system to support transmit point virtualization where multiple transmit points can serve a single UE using the same UE-specific sequence, while still maintaining cell identity through cell-specific sequences during the initial access phase.
Data Source
AI summary
A network for facilitating wireless radio communication. The network includes a first access area, wherein the access area includes one or more transmission/receive points. At least one transmission/receive point includes a base station that supports wireless communication between a network and user equipment (UE), such as, a mobile device. The network includes a dedicated connection signature (DCS) that is assigned to a UE. The DCS provides for and is used by the UE to maintain active, unified access to the wireless network. More particularly, the DCS provides for active, contention free, and fast access for the UE to the network through transmission/receive points within the first access area, which is of significance to present and future UE centric virtual radio access networks having high densities of mobile and non-mobile users and with high populations of different types of traffic patterns and applications.