By David Soldani, Man Li, Renaud Cuny
This complete quantity offers state-of-the artwork advice on caliber of provider (QoS) and caliber of end-user event (QoE) administration in UMTS mobile platforms, tackling making plans, provisioning, tracking and optimisation matters in one available source. furthermore, a close dialogue is supplied on provider functions, QoS inspiration, structure and features in entry, packet & circuit switched middle and determination networks. * Defines and explains the diversities among QoS and QoE, and end-to-end proposal, in response to the basis that it's the end-user who's the final word beneficiary of QoS. * Covers QoS and QoE matters regarding current and drawing close carrier functions, together with multimedia messaging provider (MMS), Video Sharing (VS), content material obtain, company connectivity, Push to speak over mobile (PoC), Voice over IP (VoIP), presence, quick messaging, gaming, streaming and skimming. * offers QoS suggestions and structure as outlined in 3GPP Releases 97/98, ninety nine, five, 6, and seven, and offers a finished description of protocols and packet info move throughout WCDMA developed and (E)GPRS networks. * Discusses provider pushed radio community making plans points for (E)GPRS and WCDMA. * comprises 3 certain chapters overlaying ideas, ability and techniques for QoS provisioning, QoS & QoE functionality tracking and optimisation. This e-book is aimed toward operators, owners, deployers, experts and executives specialising within the study, improvement, implementation, advertising and revenues of goods and instruments for QoS and QoE administration in UMTS networks. it's going to even be of curiosity to postgraduate scholars and researchers within the box oftelecommunications and specialising in UMTS QoS and QoE ideas and practices.
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Extra info for QoS and QoE Management in UMTS Cellular Systems
When Client B succeeds in resource reservation, it answers the UPDATE with 200 OK. Client B then indicates to User B that a video is oﬀered by User A, and also sends a 180 Ringing message to indicate to Client A that user B is being alerted. Client A acknowledges the message with a PRACK. Finally, when User B accepts the oﬀer, Client B sends a 200 OK message in reply to the ﬁrst INVITE message. Client A answers with an ACK message and starts sending video. One may notice that there are many 200 OK reply messages in the ﬁgure.
This presentation description may be obtained in a number of ways – for example, via MMS or RTSP signalling. 3GPP mandates that the description be in the form of a Session Description Protocol (SDP) ﬁle . Once the presentation description is obtained, the streaming client establishes a session for each media stream. Speciﬁcally, it may try to establish a secondary PDP context (depending on UE capabilities) for each streaming media and also sends a SETUP request message to the media server in order for the server to allocate resources for the stream.
6 Mobile VPN service message ﬂow. established, legitimate data traﬃc can travel between the mobile device and the corporate network. The security tunnels can be closed when they are not needed. During the lifetime of the IPsec tunnels, a VPN client can also drop incoming and outgoing packets according to the security policy. For example, outgoing packets that are destined to the corporate network but are not supposed to be carried by the IPsec tunnel, according to the policy, are dropped. Incoming packets that are damaged during the transmission cannot pass data authentication and hence are dropped.
QoS and QoE Management in UMTS Cellular Systems by David Soldani, Man Li, Renaud Cuny