Domestic intelligence how to win mobile phone 2 G era, the manufacturer for CDMA and GSM both formats out the relative concentration of the products, into the 3 G era, terminal manufacturers product positioning more like "stance", the article which industrial chain is particularly important. The world's most popular from occupy 3 G network of China unicom WCDMA industry chain, to form quickly China telecom CDMA terminal of the industrial chain, again to China mobile trudging certailnly industrial chain of TD, 3 G market competition gradually equilibrium, at that time samsung, MOTOROLA, huawei, zte, HTC, cool become the mainstream of the end suppliers on the market. Many cell phone manufacturers rely on the terminal operator customization, also have good performance, China telecom and China unicom in 2011 but also created the zte V880 sales of 6 million, huawei C8500 sales of 3 million and lenovo A60 and cool W706 sales volume exceeding 500000 monthly performance of the department of amazing good grades. Whether 2 G or 3 G, domestic handset manufacturers will be faced with technology patent threats, must add