Mobile communications are changing
We live in an age of the Internet and smart phones, and we are no strangers to 2G/3G/4G/5G networks. But many people's estimates of these concepts are not quite clear. For G in 2G/3G/4G/5G is the meaning of "generation". The definition of 2G/3G/4G here is mainly different from the business type, rate, transmission delay and various switching success rate angles, which make the precise implementation of the technology differently.
●eMBB
●uRLLC
●mMTC
Mobile communication test item
●Transmitter Maximum Output Power
●Transmitter Spectrum Emission Mask
●Transmitter Spurious Emissions
●Transmitter Minimum Output Power
●Adjacent Channel Selectivity (ACS)
●Receiver Blocking
●Receiver Spurious Response
●Receiver Intermodulation
●Receiver spurious emissions
●Reference Sensitivity level
●Adjacent Channel Leakage Power Ratio
Mobile communications RF required certification areas
●EN 301 511/ETSI TS 151.010 /3GPP TS 51.010
●EN 301908-2/ETSI TS 134.121-1/3GPP TS 34.121-1
●EN 301908-13/ETSI TS 136.521-1/3GPP TS 36.521-1
●EN 301908-25/ETSI TS 138.521-1/3GPP TS 38.521-1
●EN 301908-25/ETSI TS 138.521-2/3GPP TS 38.521-2
●EN 301908-25/ETSI TS 138.521-3/3GPP TS 38.521-3
●PLMN01/PLMN08/PLMN10/PLMN11
●FCC Part 22H/Part 24E/Part 27/Part 90/Part 96
●AS/CA S042.1
●AS/ACIF S042.3
●AS/CA S042.4
Relevant information
EU Releases Exemption Guidelines on Removability and Replaceability of Portable and LMT Batteries — Multiple Product Categories Relief Granted
On July 14, 2026, the European Commission published the "Commission Guidelines to Facilitate the Harmonised Application of Provisions on the Removability and Replaceability of Portable and Light Means of Transport (LMT) Batteries" (Commission Notice C(2026) 5032 final). These guidelines aim to provide a uniform interpretative framework for the implementation of Article 11 of the EU Battery Regulat
6G Developments: Past, Present and Future
The formulation of 6G standards has entered a more concrete phase. At the 3GPP RAN Plenary Meeting held in Singapore in June 2026, the industry made progress in multiple key research areas and finalized the timeline for Release 21, which is regarded as the first standard version expected to formally define 6G.
Overview of EN IEC 61000-4-29:2026
The key focus of the 2026 edition is to address new DC power distribution environments, especially higher-voltage DC systems. It also clarifies test generator capability, duration tolerance, current limitation during short interruptions, inrush current verification, result evaluation, and test report requirements. For products using 24 Vdc, 48 Vdc, 380 Vdc, 400 Vdc, 800 Vdc, or other DC input pow