As China Telecom begins rolling out NB-IoT across its network, Huawei is telling the cellular industry to expect to 30+ NB-IoT networks deployed in 20 countries, this year. However, Rethink believes the revenue opportunity for these networks is small, as device connections only require tiny data transmissions – and it’s hard to charge high prices for such small packages. NB-IoT as a specification can support throughput of 250kbps downlink/uplink, this technical capability will be largely unnecessary. Huawei’s LTE marketing vice director, Jimmy Xujianmin, told Riot that LPWAN connections would account for 70% of all Cellular IoT connections , with smart meters being a very prominent use case – along with parking, agriculture, and wearables. None of these use cases will…