 concludes Part 6. In these last seven chapters we have addressed the challenge of building a new network or performing a major upgrade to an existing network to ex- pand capacity and provide new services, particularly 3G data services. Building or upgrading an entire network is exciting, but the humdrum daily opera- tions, administration, and maintenance (OA&M) tasks of an existing network, with its repairs and minor upgrades for new technology and increased capacity, are equally im- portant to maintaining a high-quality, high-capacity, profitable CDMA network. We will now turn our attention to the job of increasing capacity on existing networks. Downloaded from Digital Engineering Library @ McGraw-Hil (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. Special Situations Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright © 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. Source: CDMA CAPACITY AND QUALITY OPTIMIZATION Increasing Capacity Part 7, "Increasing Capacity," is written for engineers and technicians who are providing operations, administration and maintenance (OA&M) support for growing cellular networks. In Chap. 39, "Measuring System Performance for Growth," we look at the key measures of capacity for all parts of the cellular network: the air interface, base stations, backhaul, and system components. We help planners identify where the limits to growth are and recommend solutions. In Chap. 40, "Turning User Complaints into Useful Data," we discuss how to move from the symptom perceived by the user to the underlying problem on the network and how to solve that problem. Chapter 41, "Increasing Capacity of a Base Station," discusses how to add power, to add carriers, to add sectors, and to install repeaters. Sometimes base stations in a particular area have reached their gro