Huawei's 1H results are more proof of the tough capex environment facing wireline and mobile telecom equipment firms. Revenue rose just 5% Y/Y to CNY102.7B ($16.1B) - a notable slowdown for a company gaining share in many markets - and operating profit fell 22%. Still, Huawei is maintaining its target for 15%-20% 2012 sales growth. Rival ZTE delivered an ugly warning earlier this month, and so did Alcatel-Lucent and some U.S. vendors. Can mobile data growth drive a turnaround?