STS testing group



STS 5G Communication Lab is composed of senior wireless communication technology engineers, in order to cope with the future development trend of electronic products, to meet the certification requirements of 5G wireless communication products of various electronic companies at home and abroad. Our company has purchased 5G communication equipment from the end of 2019 and has been fully put into use in 2020. We can provide enterprises with the latest 5G communication technology testing and certification services.


Product Range

5G communication products, NB-IoT products, eMTC products, telephones, modems, communication modules and other communication products.

Product testing standards

EN 301 511 (GSM/EDGE)
EN 301 908-1&2(WCDMA/HSUPA/HSDPA)
EN 301 908-1&4 (CDMA 2000/EVDO Rev A)
EN 301 908-1&13(LTE/eMTC/NB-IoT)
ETSI TS 138 521-1&2&3(5G NR)
FCC Part 22H/24E/27/30/96
RSS 130/132/133/139/192/195/197/199
Article 2 Paragraph 1 of Item 11-3 /11-7(WCDMA/HSUPA/HSDPA)
Article 2 Paragraph 1 of Item 11-19 /11-21/21-3/54(LTE/eMTC/NB-IoT)
Article 2 Paragraph 1 of Item 11-30(5G NR)

Main test items

Frequency error Radiated power Conducted spurious Modulation bandwidth
Sensitivity Phase error Adjacent channel leakage power ratio Intermodulation characteristics
Adjacent channel selectivity Conducted power Spectrum Radiated spurious Bit error rate Blocking

Equipment introduction

      At the end of 2019, the US Keysight E7515B 5G communication tester was introduced, which can be used for radio frequency testing of NR, NR CA, LTE (QPSK, 16QAM, 64QAM, 256QAM modulation), LTE CA, and can also help customers perform physical layer verification, conformance testing, and throughput TEST.
      The 5G communication laboratory has 1 set of NR test systems, 2 sets of LTE test systems, and 2 sets of WCDMA test systems, which can perform large-scale automated tests, greatly saving time and cost, and has excellent accuracy and efficiency.

      In today's era of winning the market by quality, STS will uphold its high-end strategic positioning, continuously improve its laboratory capabilities and expand its service network, continue to improve and surpass, and strive to become an excellent and impartial institution in the field of testing and provide product quality and safety for all types of enterprises. Provide guarantees for customers' products to enter the market and participate in global competition.


Friendship link:LINK   SRRC CertificationCCC CertificationJapan TELEC CertificationBluetooth BQB CertificationFCC CertificationCE Certification