Indoor Radio Planning: A Practical Guide for GSM, DCS, UMTS by Morten Tolstrup

By Morten Tolstrup

Cellular instant purposes are for you to bring up productiveness, increase customer support and streamline enterprise procedures. 3G cellular functions, besides the fact that, carry a special problem: making sure sufficient in-building assurance. Indoor Radio making plans offers an outline of cellular networks structures and insurance suggestions for mobile networks in constructions. The heritage of GSM, UMTS and HSPA mobile structures know-how are awarded and shape the backdrop of the most dialogue as to why indoor assurance is required and the way it's best applied. easy passive disbursed antenna structures (DAS) via to complex fiber optic structures are mentioned intimately, giving the reader a superb knowing of all of the to be had suggestions. furthermore, there's a part masking multi-operator structures, as this can be changing into a increasingly more applied method. different sections conceal elements comparable to how you can improve passive DAS from 2G to 3G, noise research, hyperlink budgets, site visitors calculations and software program instruments that may be used to supply aid with growing in-building designs. those issues are tested at size from the fundamental issues to complex indoor radio making plans.

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The users will be offset in time, but still use the same 200 kHz radio channel. 5). 6 The TDMA frame in GSM uses eight time slots, 0–7 Overview of Cellular Systems 15 correction. All transmitted information is transferred in blocks of 456 bits, divided into four time slot periods (456 ¼ 4 Â 2 Â 57). The maximum net bit rate is per time slot is 13 kbps, excluding the error correction. 7), the cells operate on different frequencies and each is identified by the CI (Cell Identity defined in the parameter settings in the network) and the BSIC (Base Station Identity Code).

It was specified by ETSI and originally intended to be used only in Europe. However, GSM proved to be a very attractive technology for mobile communications, and since the launch in Europe, GSM has evolved to be more or less the first truly global standard for mobile communication. Even though GSM is relatively old (most mobile network generations last about 7–10 years), it is still being rolled out all over the world, and in particular, the focus on high indoor usage of mobile telephony has motivated a need for dedicated indoor coverage solutions.

The Eb =No design level for the various data services are up to the operator, and are used as the basis of the link budget calculation. A typical Eb =No planning level for voice will be 7 dB, and about 4 dB for a 384 kps service Overview of Cellular Systems 35 Common Pilot Channel The common pilot channel (CPICH) does not contain any signaling. It is a pure DL channel that serves two purposes only: to broadcast the identity the cell and to aid mobiles with cell evaluation and selection. The CPICH is coded with the primary scrambling code of the cell; it has a fixed channelization code with a spreading factor of 256.

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