由 beantoup 於 2022-10-29 19:36:15 發表 | 累積瀏覽 236
The Range of SigFox is 10 km in urban area, 40 km in rural area. The Range of LoRaWAN is 5 km in urban, 20 km in rural area respectively. The interface immunity is very high in SigFox network architecture. The interface immunity is same as in SigFox network architecture.
Although 3G and 5G use different technologies to send and receive data, they operate at some of the same frequencies. But according to AT&T, they can't coexist on those frequencies - the airwaves assigned to 3G customers cannot also be used for 5G customers.
HSPA+ is the fastest 3G protocol, supporting data rates of 42, 84 and sometimes 168 Mbps for downloads and up to 22 Mbps for uploads. When the technology was first introduced, users on some 3G networks reported issues with their mobile connections frequently switching between HSPA and older 3G modes.
LTE Cat-M2 is a Low Power Wide Area Network (LPWAN). These networks are designed for the Internet of Things, offering connectivity with significantly less power consumption than traditional network technology and coverage over a large geographic area.
The 3GPP Release 14 specification enhances the NB-IoT protocol and introduces a new device category, NB2. Here is a complete NB1 vs.
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NB1 vs. NB2 comparison table.
Features LTE Cat NB1 LTE Cat NB2
Max downlink data rate ~26 kbps ~80/127 kbps (1HARQ/2HARQ)
Max uplink TBS 1000 bits 2536 bits
8 more rows•
4G devices will continue to work. Mobile providers are expected to maintain their 4G networks as they invest in 5G deployment. If your mobile device is more than a few years old, it may be a 3G device.
Narrowband IoT (NB-IoT) is a new fast-growing wireless technology 3GPP cellular technology standard introduced in Release 13 that addresses the LPWAN (Low Power Wide Area Network) requirements of the IoT.
5G's expanded bandwidth makes it cheaper and easier for hackers to obtain and utilize technology necessary to attack the network.
4G LTE is short for [fourth generation long-term evolution." So it's actually two terms combined. First, [4G" represents the fourth generation of mobile technology, the next big advancement after 3G.
NB-IoT has a channel bandwidth of 200 kHz but occupies only 180 kHz. This is equal to one resource block in LTE (1 RB). This bandwidth enables two modes of operation: Standalone operation – NB-IoT operates independently, for example on channels previously used for GSM.