Dual controller functionality in a wireless communication system
US9185584B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2013 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Feb 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In normal operation, a primary signaling controller in a first RAN manages bearer connectivity and tracking area updates for a UE and further interfaces with a second RAN over a primary signaling interface to facilitate inter-RAN signaling related to transition of the UE from being served by the first RAN to being served by the second RAN, such as circuit-switched fallback signaling. Upon detecting failure of the primary signaling interface, the first RAN is dynamically reconfigured to have such inter-RAN signaling for the UE pass over a secondary signaling interface between the second RAN and a secondary signaling controller of the first RAN, while the primary signaling controller continues to manage bearer connectivity and tracking area updates for the UE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.