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2012年1月23日星期一

Sell ZTE\'s WiMAX Solution Helps Operators Lower TCO

Over the recent years, competition in the telecom industry has been intensified. Despite the richer and richer services provided, telecom operators have seen slow increase, or even decrease, of the Average Revenue Per User (ARPU). They pay increasing attention to how to decrease the network's Total Cost of Ownership (TCO) through saving the Capital Expenditures (CAPEX) and Operation Expenditures (OPEX).
Analysis of WiMAX TCO 
For an operator, TCO mainly includes CAPEX and OPEX. In constructing and operating a WiMAX network, CAPEX mainly consists of purchase and construction expenditures. Purchase expenditures cover the purchases of WiMAX and supplementary equipment as well as upgrade and expansion equipment in the later phase. Construction expenditures cover site acquisition, civil works, and equipment installation.
OPEX is indirect costs related with routine network operation and maintenance. Operation expenditures cover the expenses on site rental, transmission rental, and power consumption.
TCO, which considers both CAPEX and OPEX, avoids the situation when the decrease of one kind of expenditure leads to a sharp rise in other expenditures, hence increasing the overall TCO. For example, if the operator pays much attention to the unit price of base stations, while ignoring the performance and power consumption of base stations, the number of sites in the network might increase greatly. As a result, the costs on base station equipment will increase greatly, leading to much higher TCO.
ZTE's WiMAX Solution Offering Lower TCO
With rich R&D experience in GSM, UMTS, CDMA2000 and TD-SCDMA systems, ZTE has taken into consideration operator's needs for lower TCO when designing and developing WiMAX products.
Distributed BBU+RRU solution
Figure 1 shows a distributed BBU+RRU solution for the WiMAX network. The Baseband Unit (BBU) is based on the MicroTCA architecture. MicroTCA standard-compliant modules can be applied to various types of sites. Therefore, the number of spare parts and turnover period can be decreased, hence saving OPEX.

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