Streamlined Cell Activation Protocol for 5G Network Overhead Reduction
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Solution Overview
Problem
Current wireless network architectures face significant overhead and congestion due to the large number of cells supported by Next Generation Radio Area Networks (NG-RAN), particularly in constrained bandwidth links, leading to network flooding and inefficient cell activation processes.
Innovation Solution
The implementation of a streamlined configuration protocol that allows for the activation of multiple cells using a single command, eliminating the need to specify individual cell IDs, and enabling centralized units to control distributed units with reduced messaging overhead, thereby optimizing cell activation and mitigating network congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional cell activation protocols are used to activate multiple cells individually, then each cell can be activated with precise control, but the message size and network overhead increase significantly causing congestion
Solution Approach 1:
The patent merges multiple individual cell activation commands into a single aggregated activation message. Instead of sending separate activation commands for each cell, the system combines multiple cell identifiers and activation parameters into one consolidated message, reducing the total number of transmissions while maintaining the ability to activate multiple cells simultaneously with precise control.
Solution Approach 2:
The patent segments the cell activation process into two phases: a configuration phase where cell information is collected and organized, and an execution phase where a single aggregated command activates multiple cells. This segmentation allows the system to maintain precise control over each cell while minimizing the overhead of activation messaging.
2Ease of operation
If individual cell activation commands are sent for each cell in NG-RAN, then complete control over each cell is maintained, but network flooding occurs in constrained bandwidth links
Solution Approach 1:
The patent combines multiple cell activation operations into a single network message, merging what would otherwise be numerous separate transmissions. This consolidation maintains the ease of operation by allowing the network controller to activate multiple cells through one command while preventing network flooding by drastically reducing the total message count on constrained bandwidth links.
Solution Approach 2:
The patent creates a universal activation message format that can handle multiple cells simultaneously, making the system multi-functional. A single message type can activate, configure, or control multiple cells across different bandwidth conditions, providing versatility while adapting to network constraints without requiring separate protocols for different scenarios.
3Manufacturing precision
If centralized units control distributed units with detailed individual cell commands, then precise cell configuration is achieved, but messaging overhead overwhelms data backhaul
Solution Approach 1:
The patent merges multiple cell configuration commands into a single aggregated message transmitted over the backhaul link. This approach maintains manufacturing precision by including detailed configuration parameters for each cell within the unified message, while simultaneously reducing backhaul bandwidth consumption by eliminating redundant message headers and control overhead associated with individual transmissions.
Solution Approach 2:
The patent performs preliminary organization and aggregation of cell configuration data before transmission over the backhaul. The centralized unit prepares the consolidated configuration message in advance, organizing all necessary cell-specific parameters and activation commands into a single optimized transmission, which reduces the frequency and volume of backhaul traffic while maintaining precise configuration control.
Data Source
AI summary
Apparatus and methods for streamlined cell activation in a wireless network. In one embodiment, the apparatus and methods provide enhanced wireless services which utilize bandwidth-efficient setup/configuration messaging and cell activation, including for very large numbers of cells, and which do not overwhelm data backhaul(s) associated with wireless nodes used for communication. In one embodiment, a message protocol is used wherein a prescribed number of cells of a given DU (e.g., all, a prescribed subset, etc.) are activated without having to enumerate or include specific data relating to the cells being activated. In one variant, this “global” activation is conducted using an Activate All Cells IE (Information Element) disposed with the F1SETUP RESPONSE message issued by a controlling CU entity within a 5G-NR infrastructure. In other variants, cells of multiple DUs can be controlled simultaneously, such as via distribution of a system-wide global activation IE.