Logical Entity IDS for Non-Cellular Wireless Access
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Solution Overview
Problem
Cellular wireless networks face limitations due to inter-cell interference and non-uniform spectral efficiency, requiring a solution that addresses these issues for improved radio access performance.
Innovation Solution
The implementation of a non-cellular grid-based radio access system, where a controller assigns a group of transmit points to a logical entity, assigns a logical entity identifier to user equipment (UE), and enables communication through a UE-dedicated connection ID, allowing seamless access across multiple transmit points without the need for traditional cell-based handovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cellular-based radio access is used, then network coverage and connectivity are provided, but inter-cell interference limits radio access performance and spectral efficiency is non-uniform across cells
Solution Approach 1:
The patent extracts the cell boundary concept from the traditional cellular architecture and removes it entirely. Instead of dividing the network into discrete cells with boundaries, the system uses a continuous coverage model where multiple transmit points cooperate to serve user equipment without defined cell borders, thereby eliminating inter-cell interference at boundaries
Solution Approach 2:
The patent merges multiple transmit points into a coordinated transmission system that works together as a unified network resource pool. Rather than operating as separate cells, transmit points are combined into a cooperative framework where multiple TPs can simultaneously serve the same UE through coordinated scheduling and resource allocation
2Adaptability or versatility
If traditional cell-based handover is implemented, then UE can move between cells, but handover complexity and service interruption occur during cell transitions
Solution Approach 1:
The patent extracts and removes the handover mechanism from the system by eliminating cell boundaries. Since there are no discrete cells with boundaries, the traditional handover process between cells becomes unnecessary. The system provides continuous coverage through coordinated multi-point transmission, allowing UE to move freely without triggering handover events
Solution Approach 2:
The system performs preliminary coordination among multiple transmit points before UE movement occurs. By pre-establishing cooperative relationships between TPs and maintaining continuous coverage overlap, the system prepares the network in advance to seamlessly track and serve moving UEs without requiring reactive handover decisions
3Productivity
If multiple transmit points serve a UE simultaneously, then spectral efficiency improves, but network complexity and resource management difficulty increase
Solution Approach 1:
The patent introduces a centralized controller as an intermediary that manages the coordination between multiple transmit points and user equipment. This controller handles the complexity of resource allocation, scheduling, and coordinated transmission, thereby enabling multiple TPs to efficiently serve UEs simultaneously without overwhelming the network with distributed control complexity
Solution Approach 2:
The system dynamically changes network parameters such as transmission power, resource allocation, and scheduling decisions based on real-time channel conditions and UE locations. By adjusting these parameters centrally through the controller, the system optimizes spectral efficiency across multiple transmit points while maintaining manageable network complexity through centralized parameter management
Data Source
AI summary
System and method embodiments are provided for non-cellular wireless access. In an embodiment, a method for non-cell grid based radio access in a radio access network includes determining, by a controller, a group of transmit points (TPs) to assign to a logical entity; assigning, by the controller, a logical entity identifier (ID) to the logical entity, wherein the logical entity ID identifies the logical entity through which a user equipment (UE) communicates with the radio access network; and causing, by the controller, at least one of the TPs in the logical entity to send signals to the UE.