Invention Grant
- Patent Title: Packet data protocol context management for handover from cellular network to a femto cell
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Application No.: US14805095Application Date: 2015-07-21
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Publication No.: US09497669B2Publication Date: 2016-11-15
- Inventor: Yung Shirley Choi-Grogan
- Applicant: AT&T Mobility II LLC
- Applicant Address: US GA Atlanta
- Assignee: AT&T MOBILITY II LLC
- Current Assignee: AT&T MOBILITY II LLC
- Current Assignee Address: US GA Atlanta
- Agency: Amin, Turocy & Watson, LLP
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W16/32 ; H04W36/04 ; H04W84/04

Abstract:
Packet data protocol (PDP) contexts are managed upon cellular-to-femto handover, wherein femto network has disparate capabilities to support applications with distinct access point names (APNs) and quality of service (QoS) profiles. Based at least on activity factors of applications associated with PDP contexts, a QoS-based ranking of PDP contexts, and subscriber input, cellular network platform selects active PDP contexts to retain and suspend upon handover. A group of active PDP contexts is handed off in accordance with femto coverage capability, with remaining active PDP contexts suspended during handover. When a suspended PDP context, and application associated therewith, is resumed through femto coverage, a PDP context modification is conducted with a new APN and the application is routed to a corresponding femto gateway node and application server. Additionally, femto network platform performs a radio access bearer reconfiguration to meet QoS requirements of the resumed PDP context.
Public/Granted literature
- US20150327126A1 PACKET DATA PROTOCOL CONTEXT MANAGEMENT FOR HANDOVER FROM CELLULAR NETWORK TO A FEMTO CELL Public/Granted day:2015-11-12
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