Download 3G, 4G and Beyond: Bringing Networks, Devices and the Web by Martin Sauter PDF

By Martin Sauter

Extensively up-to-date review of present and destiny community applied sciences, applications and devices 

This ebook follows on from its winning predecessor with an advent to subsequent iteration community applied sciences, cellular units, voice and multimedia prone and the cellular net 2.0.  Giving a valid technical creation to 3GPP instant structures, this publication explains the selections taken in the course of standardization of the most well-liked instant community criteria this present day, LTE, LTE-Advanced and HSPA+.  It discusses how those components strongly impact one another and the way community services, on hand bandwidth, cellular gadget services and new program innovations will form the way in which we converse within the future.  This moment version offers a accomplished and broad-reaching exam of a fast-moving expertise on the way to be a welcome replace for researchers and execs alike. 

Key features:

  • Fully up-to-date and extended to incorporate new sections together with VoLTE, the evolution to 4G, cellular net entry, LTE-Advanced, wireless protection and backhaul for instant networks
  • Describes the winning commercialization of internet 2.0 providers reminiscent of fb, and the emergence of app shops, pills and smartphones
  • Examines the evolution of cellular units and working platforms, together with ARM and x86 structure and their program to voice-optimized and multimedia devices

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Extra info for 3G, 4G and Beyond: Bringing Networks, Devices and the Web Together

Example text

This was and still is especially important for voice calls. 5G cells but can also be instructed by the network to 26 3G, 4G and Beyond–Bringing Networks, Devices and the Web Together search for GSM cells. While a dedicated channel is established this is very difficult since in the standard transmission mode the mobile device sends and receives continuously. For cells at the edge of the coverage area, the RNC can activate a compressed transmission mode. The compressed mode opens up predefined transmission gaps that allow the mobile 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.

For this purpose the network can configure up to four simultaneous shared control channels in the downlink direction and up to four mobile devices can therefore receive data on one or more shared channels simultaneously. 7 shows how user data is transferred through the radio network and which channels an HSDPA device has to decode simultaneously while it is in Cell-DCH state. At the RNC, the user’s data packets arrive from the core network in a DTCH. From there, the RNC repackages the data into a single High-speed Dedicated Shared Channel (DSCH) and forwards it to the NodeB.

The radio network mobility management states also apply when the mobile device communicates with the circuit-switched network. 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 packetswitched 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.

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