2. 3G uses VIA’s old cdma baseband, CBP8.2, 55nm process, which consumes power and has the advantage of being cheap. Generally, flagship cdma basebands are from Qualcomm and have good performance. Qualcomm chips generally integrate the CPU and baseband, and are fully network-compatible. They support almost all network standards in the world. Buying a CPU solves the problem, but the price is relatively expensive. However, there are also mobile phone manufacturers that use other processors, such as iPhones using A8 and A9, and Samsung S6 using Samsung’s own processors. They purchase Qualcomm’s baseband separately for the best performance. Huawei is a bit trickier and has been working hard to use its own processors. , HiSilicon Kirin, which everyone knows, is currently developing well in terms of processors, but in terms of baseband, 4G is not so good, but the well-known reasons for CDMA (Qualcomm’s patent barriers) cannot bypass Qualcomm, but currently Huawei Following the principle of profit maximization, we strive to save money in places that consumers are unlikely to know, so we use cheap via chips on flagship phones (telecom version only) to support cdma2000.