Network Cell Establishment Prioritization for Base Station Restart
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Solution Overview
Problem
Current methods for establishing network cells in wireless communication systems are inefficient, particularly during base station restarts, as they do not prioritize network cells based on their purpose, leading to unpredictable and prolonged system unavailability, especially for critical functionalities like emergency calls.
Innovation Solution
A method where network entities use a network cell establishment list to prioritize and order the establishment of network cells, based on their type and importance, such as emergency call, access, and capacity cells, ensuring that critical cells are established first and allowing for predictable system availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network cells are established in arbitrary order during base station restart, then all network cells will eventually be established, but the system unavailability time is prolonged and unpredictable, especially for critical functionalities
Solution Approach 1:
The patent applies preliminary action by pre-defining a prioritized establishment order for network cells before the base station restart. The network entity stores configuration information that specifies which network cells should be established first (e.g., emergency call cells, access cells) and which can be established later (e.g., capacity cells). This pre-planned sequence ensures that when restart occurs, critical cells are immediately re-established without waiting for non-critical cells, thereby reducing downtime for essential functionalities while maintaining overall system reliability.
2Productivity
If network cells are established without prioritization, then the establishment process is simple, but the order of establishment is unpredictable and does not optimize critical service restoration
Solution Approach 1:
The patent applies parameter changes by introducing a prioritization parameter (establishment order) to the network cell configuration. Each network cell is assigned a priority level or sequence number in the configuration information stored in the network entity. This parameter change transforms the establishment process from an arbitrary sequence to a controlled sequence based on predefined priorities, optimizing service restoration efficiency without significantly increasing device complexity since the prioritization is handled through existing configuration data structures.
3Reliability
If critical network cells are established first, then service restoration for emergency and access functionalities is optimized, but the system requires a more complex establishment control mechanism
Solution Approach 1:
The patent implements preliminary action by pre-configuring the prioritization logic in the network entity before restart occurs. The configuration information, which may be provided by an operation support system or predefined in the network entity, contains the establishment sequence for different network cell types. This pre-prepared control mechanism allows the base station to automatically follow the prioritized sequence during restart without requiring complex real-time decision-making, thus optimizing critical service availability while keeping the control mechanism manageable through use of existing configuration infrastructure.
Data Source
AI summary
The disclosure refers to a method in a network entity for establishing network cells in a wireless communication system, wherein the network entity provides wireless network coverage to a plurality of network cells. The method comprising the method steps of: identifying a need of establishing network cells, accessing a network cell establishment list, wherein the network cell establishment list defines a number of network cells and an order in which respective network cell is to be established, and establishing network cells in accordance with the order provided by the network cell establishment list. The disclosure also refers to a network entity configured to perform such method.