Base Station Repeat Paging Bypass Control Node
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Solution Overview
Problem
In cellular radio access networks, the processing of new and repeat-paging requests leads to excessive backhaul traffic and increased computational and signaling loads for the control node, impacting system performance and user experience.
Innovation Solution
The first base station sends a repeat-paging directive directly to a neighboring base station without routing it through the control node, based on load state and application type considerations, allowing the base stations to handle repeat-paging functions independently and reduce the burden on the control node.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control node processes both new paging requests and repeat-paging requests, then the paging function is complete, but the backhaul traffic and computational load on the control node become excessive
Solution Approach 1:
The patent segments the paging function into two parts: new paging requests are handled by the control node, while repeat-paging requests are handled directly by base stations. This segmentation reduces the control node's workload by transferring repeat-paging operations to the access network level, where base stations can independently manage repeat paging without involving the control node.
Solution Approach 2:
The patent introduces a repeat paging indicator flag as an intermediary mechanism. When the control node detects a repeat paging request, it sets this flag and forwards the paging message to the base station. The base station then uses this flag to identify and handle repeat paging requests independently, eliminating the need for the control node to process the full repeat paging logic.
2Stability of the object's composition
If repeat-paging directives are routed through the control node, then centralized control is maintained, but processing capacity for new paging requests decreases
Solution Approach 1:
The patent segments the paging traffic flow by creating separate handling paths: new paging requests continue to flow through the control node for centralized management, while repeat-paging requests are identified by a special indicator and routed directly to base stations. This segmentation allows the control node to focus only on new paging requests, thereby increasing its processing capacity while maintaining centralized control through the indicator mechanism.
Solution Approach 2:
The patent extracts the repeat-paging function from the control node's processing queue by introducing a repeat paging indicator. This indicator allows the control node to quickly identify and separate repeat-paging requests from new paging requests, extracting them before they enter the control node's main processing pipeline. This extraction enables the control node to dedicate its full processing capacity to new paging requests.
3Stability of the object's composition
If the control node handles all paging requests, then centralized management is achieved, but signaling load and backhaul traffic increase
Solution Approach 1:
The patent introduces a repeat paging indicator as an intermediary signaling element. This indicator is embedded in the initial paging message by the control node and carried forward in subsequent repeat paging messages. This intermediary allows the paging state information to be transmitted efficiently through the access network without requiring continuous control node involvement, thereby reducing backhaul traffic while maintaining centralized management through the initial indicator setting.
Solution Approach 2:
The patent applies preliminary action by having the control node set the repeat paging indicator in advance when it initially detects a paging request. This preliminary action allows the indicator to be propagated forward in the paging process without requiring the control node to re-process or re-signal for each repeat paging attempt. The indicator serves as a pre-configured instruction that enables base stations to handle repeat paging locally, significantly reducing subsequent backhaul traffic.
Data Source
AI summary
Disclosed are a method, apparatus, and system for managing repeat-paging processes within a radio access network. When a base station receives a paging directive, the base station begins broadcasting a first series of page messages destined to a mobile station. Responsive to the first base station receiving no response from the mobile station to the first series of page messages and responsive to the mobile station determining a load state and/or an application type, the first base station decides to send a repeat-paging directive from the first base station to a second base station without routing the repeat-paging directive through the control node or rather to route the repeat-paging directive through the control node and then to the second base station. The repeat-paging directive directs the second base station to begin broadcasting a second series of page messages destined to the mobile station.