Dear friends, Due to spreading infection of coronavirus, and some cities are on lockdown as well as our government's strict regulation about workers working together in the factory and on the production line, we will probably face delay in all orders. The latest request from our government is that ... Read More

Dear friends, As Chinese Traditional New Year comes around, here we’d like to announce our Holiday schedule for Chinese New Year, as following: Before 15th-Jan-2020, we will work with full working capacity, which means we can still accept order, keep service as well as arrange shipping of goods. ... Read More

At 2:57 on November 1, the Long March 3B carrier rocket was ignited at the Xichang Satellite Launch Center, and the first geosynchronous orbit satellite of the Beidou No. 3 project was successfully put into the orbit. This is the 41th Beidou navigation satellite launched by the Changjiajia series of ... Read More

NPUSCH The NPUSCH is used to transmit uplink data and uplink control information. The uplink subcarrier spacing is 3.75KHz and 15KHz. There are two transmission modes on the uplink: single tone transmission and multi-tone transmission, among which the single tone The subcarrier bandwidth includes 3... Read More

NB-IoT Downstream: NB-IoT downlink is consistent with LTE, adopts orthogonal frequency division multiple access (OFDMA) technology, subcarrier spacing is 15 kHz, time slot, subframe and radio frame length are 0.5 ms, 1 ms and 10 ms, respectively, including OFDM symbols per slot. The number and ... Read More

NB-IoT and eMTC belong to the cellular Internet of Things, and also have the "3C" feature of the cellular Internet of Things: Coverage enhanced coverage Consumption Cost low cost In order to meet the "3C" goal, the implementation of NB-IoT and eMTC is also different, as follows: one Comparison of ... Read More

Technical standard editor eMTC is an important branch of Internet of Everything. Based on the evolution of the LTE protocol, the LTE protocol is tailored and optimized for better communication between objects and for lower cost. The eMTC is deployed on a cellular network, and its user equipment can ... Read More