Wireless Network Re-entry After RF Outage Using Stored Context
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Solution Overview
Problem
Mobile stations face lengthy initial network entry procedures when re-entering a wireless communication network after a radio frequency outage, as they must revert to standard initial entry procedures, which are time-consuming and inefficient compared to idle or handover re-entry processes.
Innovation Solution
A method where the base station provides entity identifications during initial entry for storing mobile station context information, allowing for expedited re-entry by notifying the mobile station of storage locations for context data after an RF outage, enabling the mobile station to use stored context information for re-entry without re-obtaining it from the mobile station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the mobile station uses the initial network entry procedure after radio frequency outage, then the network can be re-entered, but the re-entry time is lengthy and inefficient
Solution Approach 1:
The base station performs preliminary actions by storing mobile station context information and providing entity identifications during initial entry, so that when re-entry is needed after RF outage, the mobile station can quickly retrieve and use this pre-stored information instead of going through the full initial entry procedure again
Solution Approach 2:
The system creates a copy of the mobile station context information and stores it at the base station with entity identifications. This copy can be quickly retrieved during re-entry, eliminating the need to重新 obtain all context information from the mobile station, thus reducing re-entry time and improving efficiency
2Loss of time
If the base station stores mobile station context information and provides entity identifications, then re-entry can be expedited, but the device complexity increases
Solution Approach 1:
The base station's existing context information storage capability is extended to serve multiple purposes: it not only stores information for idle mode re-entry and handover but also for RF outage recovery. By providing entity identifications that indicate storage locations, the base station creates a universal re-entry mechanism that handles multiple scenarios without requiring separate complex systems for each case
Data Source
AI summary
A method and apparatus for that provides a re-entry procedure following a radio frequency outage in a wireless communication network is disclosed. The method includes providing (204) a entity identification for a base station (102-106) or a paging controller (108) to a mobile station (110) during initial entry of the mobile station to a wireless communication network. The method also includes storing (206) mobile station context information at an entity corresponding to the entity identification. After a radio frequency outage occurs after the initial entry of the mobile station into the network, a notification is sent (218) that indicates that the mobile station is re-entering the wireless communication network. Based on the notification that there has been a radio frequency outage, the mobile station context information is obtained (220) to assist the mobile station to re-enter the wireless communication network.