By Martin Sauter
Giving a valid technical advent to 3GPP LTE and SAE, this publication explains the selections taken in the course of standardization whereas additionally interpreting the most likely pageant for LTE comparable to HSPA+ and WiMAX. in addition to taking a look at subsequent iteration community applied sciences, past 3G - Bringing Networks, Terminals and the internet jointly describes the most recent cellular machine advancements, voice and multimedia prone and the cellular internet 2.0. It considers not just how the platforms, units and software program paintings but in addition the explanations at the back of why they're designed during this specific approach. How those components strongly impact one another is mentioned in addition to how community functions, to be had bandwidth, cellular equipment features and new software techniques will form the way in which we converse sooner or later. This publication provides an finish to finish creation to instant, from cellular software program structure to middle networks, making it a important source for a person operating within the industry.
Examines present and next-generation community applied sciences similar to UMTS, HSPA+, WiMAX, LTE and Wifi
Analyses and explains functionality and means in perform in addition to destiny skill requisites and the way they are often fulfilled
Introduces the reader to the present mobile telephony structure and to voice over IP architectures equivalent to SIP, IMS and TISPAN
seems at cellular machine and cellular working approach evolution
* Encompasses all significant international instant criteria for software improvement and the most recent country of the cellular net 2.0
Giving a valid technical creation to 3GPP LTE and SAE, this booklet explains the choices taken in the course of standardization whereas additionally interpreting the most likely pageant for LTE equivalent to HSPA+ and WiMAX. in addition to subsequent iteration community applied sciences, "Beyond 3G - Bringing Networks, Terminals and the internet jointly" describes the newest cellular equipment advancements, voice and multimedia prone and the cellular net 2.0. It considers not just how the platforms, units and software program paintings but in addition the explanations at the back of why they're designed during this specific means. How those parts strongly impression one another is mentioned in addition to how community services, on hand bandwidth, cellular equipment features and new program techniques will form the best way we speak within the future.It encompasses all significant worldwide instant criteria in functions, cellular gadget evolution and the newest kingdom of the cellular internet 2.0. It examines present and next-generation community applied sciences reminiscent of UMTS, HSPA+, WiMAX, LTE and Wifi. It debates the case of destiny bandwidth specifications as opposed to on hand frequency bands.
It introduces the reader to the present mobile telephony structure and to voice over IP architectures equivalent to SIP, IMS and TISPAN. It analyses and explains functionality and means in perform in addition to destiny means specifications and the way they are often fulfilled.
Read Online or Download Beyond 3G: Bringing Networks, Terminals and the Web Together : LTE, WiMAX, IMS, 4G Devices and the Mobile Web 2.0 PDF
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Additional info for Beyond 3G: Bringing Networks, Terminals and the Web Together : LTE, WiMAX, IMS, 4G Devices and the Mobile Web 2.0
During a voice or video call via the MSC, the mobile device is in Cell-DCH state. The mobile is also set into Cell-DCH or Cell-FACH state during signaling message exchanges, for example during a location update with the MSC and SGSN. 6 Radio network and core network mobility management states for an active packet switched connection. 4 HSPA (HSDPA and HSUPA) Soon after the first deployments of UMTS networks, it became apparent that the use of dedicated channels on the air interface for packet-switched data transmission was too inflexible in a number of ways.
F-DPCH gating: terminals in HSDPA active mode always receive a Dedicated Physical Channel in the downlink, in addition to high-speed shared channels, which carries power control information and Layer 3 radio resource (RRC) messages, for example for handovers, channel modifications and so on. The Fractional-DPCH feature puts the RRC messages on the HSDPA shared channels and the mobile thus only has to decode the power control information from the DPCH. At all other times, that is when the terminal is not in HSDPA active mode, the DPCH is not used by the mobile (thus it is fractional).
In this example, the uplink and downlink data are collected and distributed by two RNCs. However, only one of the two RNCs, referred to as the Serving-RNC (S-RNC), communicates with the core network. The other RNC, referred to as the Drift-RNC (D-RNC), communicates with the S-RNC. If the user moves further into the area covered by NodeB 2 and NodeB 3, the mobile will at some point lose contact with NodeB 1. At this point, the involvement of the RNC 30 Beyond 3G Bringing Networks, Terminals and the Web Together device’s receiver to retune to the frequencies of neighboring GSM cells, receive their signal, synchronize to them and return to the UMTS cell to resume communication and to report the result of the neighboring cell signal measurements to the network.