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

By Martin Sauter

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

This publication follows on from its winning predecessor with an creation to subsequent iteration community applied sciences, cellular units, voice and multimedia companies and the cellular net 2.0.  Giving a legitimate technical creation to 3GPP instant platforms, this e-book explains the selections taken in the course of standardization of the preferred instant community criteria this day, LTE, LTE-Advanced and HSPA+.  It discusses how those parts strongly impression one another and the way community services, to be had bandwidth, cellular machine functions and new program strategies will form the best way we speak within the future.  This moment variation offers a complete and broad-reaching exam of a fast-moving know-how that allows you to be a welcome replace for researchers and execs alike. 

Key features:

  • Fully up to date and increased to incorporate new sections together with VoLTE, the evolution to 4G, cellular net entry, LTE-Advanced, wireless safety and backhaul for instant networks
  • Describes the winning commercialization of net 2.0 prone comparable to fb, and the emergence of app shops, drugs and smartphones
  • Examines the evolution of cellular units and working platforms, together with ARM and x86 structure and their software to voice-optimized and multimedia devices

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

Sample text

This is done as follows: the network instructs the mobile not only to listen to the HS-SCCH but in addition to all packets being transmitted on one of the high-speed downlink shared channels. The terminal then attempts to blindly decode all packets received on that shared channel. To make blind decoding easier, packets which are not announced on a shared control channel can only have one of four transmission formats (number of data bits) and are always modulated using QPSK. These restrictions are not an issue for performance, since HS-SCCH-less operation is only intended for low-bandwidth real-time services.

1 64QAM Modulation in the Downlink One of the key parameters of a wireless system that is often cited in articles is the maximum transmission speed. 4 Mbit/s in the downlink direction, which translates to 10–11 Mbit/s in practice today under very good radio conditions. To increase transmission rates further, 3GPP Release 7 introduces 64QAM modulation in the downlink, which transmits six chips per transmission step compared with four chips with 16QAM. 1 Mbit/s. This has been confirmed and even exceeded in practice with achievable speeds of around 14–16 Mbit/s measured with an HSDPA category 14 device in a lifenetwork-supporting 64QAM modulation and under very good signal conditions [13].

4, and by knowing the codes used by each mobile device. To accommodate the different bandwidth requirements of different users, the system can use several different spreading code lengths simultaneously. 2 kbit/s, a spreading code length of 128 is used. This means that each bit is represented on the air interface by 128 chips and that up to 128 users can send their data streams simultaneously under ideal conditions. 4 Simultaneous data streams of two users to a single base station. (Reproduced from Communication Systems for the Mobile Information Society, Martin Sauter, 2006, John Wiley & Sons, Ltd, Ref.

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