Communication module: the key device to realize the intelligent connection of everything

Wireless mobile communication module is a module that integrates chips, memory, amplifiers, antenna interfaces, functional interfaces, etc. on a circuit board.

It realizes the functions of enterprise radio wave transmission and reception, lte m2 channel noise filtering and mutual conversion between analog control signals and digital economic signal processing.

IoT intelligent end-users use wireless communication modules to access the service network to meet these data analysis wireless transmission development needs, wireless communication modules are the key equipment to achieve a smart connection of everything.

The value of the module is mainly focused on two aspects: First, the module as an integrated chip, integrated with different application scenarios (2G/3G/4G/5G/5G/NB), providing more stable hardware communication, simplifying the work of application vendors;

Second, the module manufacturers provide the programming system (Android, linux, etc.) according to the needs of the application manufacturers.

Application manufacturers do not have to directly face the chip and software, but only need to know what network to access, in which system to develop applications, and then purchase off-the-shelf custom modules.

Module classification: NB-IoT, 4G and 5G will become mainstream in terms of volume

According to the communication protocols supported by baseband chips, we divide wireless modules into communication modules and positioning modules, which can be divided into cellular modules and non-cellular modules, and positioning modules into GNSS modules and GPS modules.

Cellular communication modules mainly include 2/3/4/5G, NB-IoT and eMTC in authorized bands, while non-cellular communication modules mainly include WIFI, Bluetooth, zigbee, LORA and sigfox in un-authorized bands.

In the future, with the gradual replacement of 2G/3G, the capacity of NB-IoT, 4G and 5G will become mainstream.


LTE Cat M1: Is it 3G?

Cat-M1 offers functionality akin to a conventional 2G or 3G modem and supports IoT applications that need low to medium data speeds. The narrowband Internet of Things (NBIoT or LTE Cat NB1) is described as LPWA technology on licensed spectrum by the 3GPP Release 13 release standard, which also includes LTE Cat M1.

Is LTE-A beneficial?

LTE offered telephone service, high-speed mobile and broadband data, and support for public safety operations. Despite being substantially quicker than the 3G generation before it, it is still slower than the 100Mbps rates needed for real 4G.

Do LTE plans exclude WiFi?

Wi-Fi Never Takes Priority Over Cellular:br>br> The presence of LTE indicates that cellular data is available. Cellular will therefore always be used, even if Wi-Fi and Cellular are both enabled. If and when cellular service is lost, it will switch to Wi-Fi.

If Cat M is 5G

LTE-M (CAT-M) offers the smallest bandwidth of any LPWA technology and is suited for fixed and mobile applications, both of which are 5G-ready. Leading LPWA technologies include NB-IoT, which is focused on low data rates and is ideal for simple static sensor applications.

Band 2 is what band?

Band II refers to the radio frequency band between 87.5 and 108.0 megahertz in the very high frequency (VHF) region of the electromagnetic spectrum (MHz).

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