Typical LTE network types include CAT4, CAT1, CAT0, CATM, and CatNB, which fulfill the needs of network coverage, cost, and power consumption. With GSM still hesitant to exit the market, several companies have joined forces to introduce the EC-GSM network type.cellular module Although this makes the IoT market more competitive, facing the complete withdrawal of GSM, eC-GSM inevitably faces the fate of being eliminated, although the time is still uncertain.
1. Network Characteristics of IOT Market
Now the market is more common CatNB, EC-GSM and CatM are three different ways of IOT information network data types, these social network development have their own advantages, CatM and CatNB are a LTE-based technology,lte module in the base station hardware is not changed on the basis of upgrading through the analysis of the software that can be realized. EC-GSM based on GSM technology, mainly by the old vendors in the GSM technology. EC-GSM is based on GSM technology and is mainly driven by established vendors. These influential companies are hoping to continue their advantages in the GSM market in the IoT financial market, and occupy an important place in the market economy of the IoT industry. In the chip product market, few chips can provide support for all three network standards at the same time.
2. What is the difference between CatNB and CatM?
CATNB network and CATM belong to the same network technology under 3GPP standard. Although their names are different, their standardization process, industry development and applications are similar. Here are some obvious differences.
CATM networks have good support for voice, SMS, mobility (over 30Km/h) and speed (over 30kbps), with VoLTE being a highlight.CATNB is mainly concerned with cost, coverage and battery life.
CatM already includes many frequency bands (global bands), so it is possible to choose the appropriate chip for the frequency bands supported in a particular country of the CatM network. However, the upstream and downstream speed of CatM's 375Kbps UL is 5 times faster than CatNB's 70Kbps UL. Therefore, CatM network is more suitable for application scenarios that require high data volume and communication rate.
3. Key Information Technology of CatM
CATM and LTE work together in the same frequency band. Base stations allocate resources and share control channels. For CATM networks, operators can deploy CATM directly on existing LTE bands without allocating separate spectrum and can support CATM networks after investing in some equipment to reuse existing LTE network infrastructure.
For CatM network, it also has its own unique features: ultra-reliable and low-latency, suitable for communication needs between things; channel bandwidth and RF reception bandwidth are 1.4MHz (CatNB single carrier bandwidth of 180khz), the terminal complexity is further reduced; the use of LTE in-band deployment mode, support for TDD and FDD two ways, making the network more broadly application network environment.
At low power consumption, CatNB and CATM networks use the same technologies: PSM, eDRX and extended cycle timer strategies.
Due to its voice support, faster transmission rate and better mobility, CatM network can be more suitable for wearable devices, health monitoring, indoor mobile applications, smart logistics, smart charging piles, waiting buses, elevator guards, smart bus stops, public bicycle management and other fields.
I believe that we through the government, operators and chip manufacturers of the common development efforts, driven by the market, the Internet of Things technology market CatM network will become the same as CatNB, has to improve their own a unique use of different areas, dominating the Internet of Things enterprise market side.
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