Advanced Core Network Penttinen, Jyrki T. J; Jalkanen, Tero; Keisala, Ilkka ...
The LTE-Advanced Deployment Handbook,
2015, 2015-12-16
Book Chapter
This chapter presents the functional blocks and interfaces of Long Term Evolution (LTE) and LTE‐Advanced. The new architecture is illustrated with comparisons of the solutions with the earlier ...mobile communications systems. The new architecture is illustrated with comparisons of the solutions with the earlier mobile communications systems. Also a protocol layer structure and functioning of the LTE protocols are described, and examples clarify the principles of each protocol. The chapter describes the required parts of the IP Multimedia Subsystem (IMS) architecture and the technologies needed for native voice and video telephony over IP and the Short Message Service (SMS) over IP. In the case of voice, video and SMS over LTE, the Serving Call State Control Function (S‐CSCF) represents an important building block within the IMS architecture. Application Servers (AS) are considered the work horses of the IMS architecture providing critical business services for the IMS subscribers.
Voice over LTE Kallio, Juha; Jalkanen, Tero; Penttinen, Jyrki T. J
The LTE / SAE Deployment Handbook,
2011, 2011-11-25
Book Chapter
This chapter contains sections titled: <list style="bulleted" xml:id="l1"> Introduction CS Fallback for Evolved Packet System SMS Over SGs Voice and Other CS Services than SMS Voice and SMS Over IP ...Summary References
Ion implantation of Fe and Mn into Al thin films was used for effective
modification of Al superconductive properties. Critical temperature of the
transition to superconducting state was found to ...decrease gradually with
implanted Fe concentration. it was found that suppression by Mn implantation
much stronger compared to Fe. At low concentrations of implanted ions,
suppression of the critical temperature can be described with reasonable
accuracy by existing models, while at concentrations above 0.1 at.% a
pronounced discrepancy between the models and experiments is observed.
Ion implantation of Fe and Mn into Al thin films was used for effective modification of Al superconductive properties. Critical temperature of the transition to superconducting state was found to ...decrease gradually with implanted Fe concentration. it was found that suppression by Mn implantation much stronger compared to Fe. At low concentrations of implanted ions, suppression of the critical temperature can be described with reasonable accuracy by existing models, while at concentrations above 0.1 at.% a pronounced discrepancy between the models and experiments is observed.
