This is not the first time that Huawei is using ASICs. In fact it had used ASICs for their backplane ( and perhaps other hw) in their teleocm fibreoptic equipment - way back in early 2000s. At that time, its design team (later spun out as HiSilicon) implemented ASICs with the help of various ASIC vendors - Meenu
A Huawei contact told me the company--like its rival Cisco--has been using ASICs for some time, many designed, I suspect, by its giant HiSilicon division.
Apparently Huawei or some big company is now converting many of the Altera FPGAs it uses into ASICs. That usually indicates the systems are moving from relatively small to large volumes.