Building at the good fortune of the 1st variation, UMTS Networks moment edition permits readers to proceed their trip via UMTS as much as the newest 3GPP standardization section, free up five. Containing revised, up to date and fresh fabric, it offers a entire view at the UMTS community structure and its newest advancements. followed by means of quite a few illustrations, the sensible procedure of the booklet advantages from the authors’ pioneering examine and coaching during this field.
- Provides a huge but exact evaluation of the newest around the world advancements in UMTS know-how.
- Includes fresh sections at the IP Multimedia Subsystem and excessive velocity Downlink Packet entry in accordance with 3GPP unencumber five requirements.
- Contains seriously revised sections at the evolution from GSM to UMTS Multi-access, the UMTS Radio entry community, the UMTS center community and prone.
- Includes up-to-date types on providers within the UMTS setting, defense within the UMTS setting and UMTS protocols.
- Illustrates all issues with state of the art useful examples gleaned from the authors’ examine and coaching on the vanguard of UMTS.
The illustrative, hands-on procedure will attract operators, gear proprietors, platforms designers, builders and advertising and marketing pros who require accomplished, useful info at the most up-to-date advancements in UMTS. This moment version also will gain scholars and researchers within the box of cellular networking.Content:
Chapter 1 creation (pages 1–14): Ari Ahtianen, Heikki Kaaranen and Siamak Naghian
Chapter 2 Evolution from GSM to UMTS Multi?Access (pages 15–27): Heikki Kaaranen
Chapter three the major demanding situations dealing with the cellular community structure (pages 29–57): Siamak Naghian and Heikki Kaaranen
Chapter four evaluation of UMTS Radio entry applied sciences (pages 59–98): Siamak Naghian and Heikki Kaaranen
Chapter five UMTS Radio entry community (pages 99–142): Siamak Naghian and Heikki Kaaranen
Chapter 6 UMTS middle community (pages 143–194): Heikki Kaaranen and Miikka Poikselka
Chapter 7 The UMTS Terminal (pages 195–206): Lauri Laitinen
Chapter eight prone within the UMTS surroundings (pages 207–251): Heikki Kaaranen, Siamak Naghian and Jan Kall
Chapter nine safeguard within the UMTS surroundings (pages 253–283): Valtteri Niemi and Heikki Kaaranen
Chapter 10 UMTS Protocols (pages 285–349): Ari Ahtiainen
Chapter eleven approach Examples (pages 351–385): Heikki Kaaranen, Ari Ahtiainen and Siamak Naghian
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Extra info for UMTS Networks: Architecture, Mobility and Services, Second Edition
Sample text
Problems due to mobility. Per-cell radio resource scarcity. Assume a cellular system with asynchronous users sharing the same radio bandwidth and served by the same radio base station in each coverage area or cell, each base station not only receives interference from mobiles in the home cell but also from terminals and base stations located in neighbouring cells. 7 A simplified architecture of cellular network of interference, they can be classified as intra-cell/co-channel, inter-cell/adjacent cell and interference due to thermal noise.
8, in order to cope with the total interference received from terminals, interference within the home cell and neighbouring cells should be investigated. In order to alleviate channel interference, both multipath and path losses in the cellular network frequency reuse technique, in which in each cell of the cluster pattern a different frequency is used, can be applied. Therefore, the frequency reuse factor is an essential parameter for cellular networks and can partly explain the spectrum efficiency of the network.
So far, the abilities provided by the IN platform have been enough from the service point of view. The concept of IN is directly adopted from PSTN/ISDN networks and, thus, it has some deficiencies as far as mobile use is concerned. The major problem with standard IN is that IN as such is not able to transfer service information between networks. In other words, if a subscriber uses IN-based services they work well but only within his or her home network. This situation can be handled by using CAMEL, as explained earlier.