Study of 3rd generation Radio Acces Network Expansion in Node B
Date Issued
2009
Date
2009
Author(s)
Wang, Yi
Abstract
At the present, the income from mobile communication service makes 59.26% of the revenue of the telecom industry in Taiwan. The users are accustomed to mobile communication, and the descending rate of vocal communication is pushing the operators to develop new contents and provide mobile internet related services to satisfy the users and as a result to make a breakthrough to surmount the present revenue.owever, the operators are facing the same problem：The mobile internet service takes much more system resources than the traditional vocal communication service, in terms of the amount of radio network controller (RNC) and the capacity of base stations. Therefore, how to accurately plane ahead the expansion of network capacity of the 3rd generation communication is obviously a critical issue for the operators.n the past, when planning the expansion of base station capacity, the traffic estimation was based on assumption, without considering the actual distribution of the traffic. As a result, the accuracy of the estimate capacity is usually unsatisfying. This research has taken into consideration that in most of the cases, 2G & 3G collocated at the same base station，therefore, it would estimate the capacity based on the past traffic record of 2G and 3G, and the expected growth rate of user. The traffic model, although base on the concept of packet switch service, has similar estimation rules with traditional vocal traffic. Therefore, we will make the inference based on the concept of Erlang, then, to test and verify the inference with the actual traffic expansion in the following six months. This research aims at accomplishing a more accurate planning tool for the expansion of base stations.
Subjects
2nd Carrier
Erlang
HSDPA
OVSF
CE
Type
thesis
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