Author: Zhao Xiaofei IoT Think Tank Original Please indicate the source and origin when reprinting Introduction Satellite-based NB-IoT networks and privately built NB-IoT networks are both aimed at expanding the ways of connecting IoT devices, achieving the goal of “connecting the unconnected”, and broadening the scope of 5G connectivity to cover as many scenarios as … Read more
Author: Zhao Xiaofei IoT Think Tank Original Please indicate the source and origin when reprinting —— [Guide] —— Even if 5G was commercialized in 2019-2020, NB-IoT/eMTC will still be the main communication method for cellular IoT in the coming years, and NB-IoT/eMTC has become a part of the 5G IoT. From May 21 to May … Read more
This is an interesting and special 5G plan. The plan is as follows: Phase One (November 2018 to March 2020) First, through shared towers and satellite backhaul, quickly establish a nationwide coverage 700MHz NB-IoT network. Phase Two (March 2020 onwards) Transition from NB-IoT to 5G, supporting all 5G applications except mobile broadband services, specifically providing … Read more
As modern people, there are two things we cannot live without: one is a smartphone, and the other is the internet. These two are very familiar to everyone and can be considered standard configurations. Smartphones improve every year, and network technology is certainly not idle. Not only is the 4G cellular network iterating towards 5G, … Read more
If you’ve been following recent smartphone launch events, you may have noticed the term Wi-Fi 6 being mentioned frequently. At the launch of the Xiaomi Mi 10 series, Lei Jun spent 5 minutes discussing this technology. At the Huawei Mate Xs launch event, Yu Chengdong also dedicated a significant amount of time to introducing their … Read more
Some say the path to 5G evolution is as complex as a maze. Unlike in the past, there are up to 8 options for 5G networking architecture. Apart from Option 1, which is the 4G architecture, and Options 6 and 8, which have been abandoned by the industry, there are still Options 2, 3, 4, … Read more
With the commercial use of 5G, there has been ongoing debate regarding the two networking modes: NSA and SA. Initially, some 5G phones that only supported NSA mode were questioned for not being true 5G devices. Currently, many regions have completed SA network coverage, and NSA is indeed starting to show signs of obsolescence. Many … Read more
Due to length, the second solution is presented separately. Compared to the previous plan, this one focuses on cost-effectiveness. This solution can be implemented without replacing the optical modem based on existing equipment, or by replacing the optical modem. However, the impact of the optical-to-electrical conversion at the source is minimal. The main concern is … Read more
With the development of Internet of Things (IoT) technology, the number of clock synchronization-related services is gradually increasing, and the demand for time synchronization accuracy in IoT devices is becoming higher. Recently, China Mobile Internet of Things Co., Ltd. (hereinafter referred to as “CMIoT”) collaborated with Spirent Communications to conduct comprehensive performance verification of a … Read more
Today, I saw a stunning diagram in a WeChat group: Those who are knowledgeable should understand. This is the diagram of the entire mobile communication network architecture and protocol specifications from 3GPP. In simpler terms, it is the complete architecture diagram of the core network from 2G to 5G. It showcases almost all network elements, … Read more