Questions EVDO VS TDSCDMA ?

[S Fetus AKA Pseudo Khan]

EVDO VS TDSCDMA
මේ දෙක අතර වෙනස පැහැදිලි කරපං දන්න එකෙක්?

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@imhotep please elaborate on this machan
------ Post added on Apr 4, 2023 at 10:16 AM

 

[imhotep]

EVDO (Evolution-Data Optimized) is a 3G enhancement in CDMA2000 networks to provide high-speed mobile data. Initially it stood for Evolution Data Only, with only data enabled and voice was either carried by VoIP or CDMA 1X Fallback.

HSPA (High-Speed Packet Access) is a 3G enhancement for WCDMA-based UMTS networks.
LTE is the 4G migration path for all 3G technologies, including CDMA2000 and UMTS.

TD-SCDMA (Time Division - Synchronous CDMA) was a variant of UMTS WCDMA that was developed in China. It was only deployed in China and the others ignored it and went on with a more standard TDD version of UMTS. It is possible to run TD-SCDMA alongside UMTS, and thus simplifying multi-system designs.
The Chinese version, in fact had a few advanced techniques in it's design, some of this because it used the same uplink & downlink frequencies, and it did pave the way for the development of 4G LTE TDD systems.

PS: Since no one responded here's a brief.

 

[EdNygma]

bump

 

[S Fetus AKA Pseudo Khan]

EVDO (Evolution-Data Optimized) is a 3G enhancement in CDMA2000 networks to provide high-speed mobile data. Initially it stood for Evolution Data Only, with only data enabled and voice was either carried by VoIP or CDMA 1X Fallback.

HSPA (High-Speed Packet Access) is a 3G enhancement for WCDMA-based UMTS networks.
LTE is the 4G migration path for all 3G technologies, including CDMA2000 and UMTS.

PS: Since no one responded here's a brief.

EV-DO dongles available & it has download speed upto 14.7 Mbps, this is remarkable since we have only 4Mbps average speed in the Country.

 

[kevin_levin]

EV-DO dongles available & it has download speed upto 14.7 Mbps, this is remarkable since we have only 4Mbps average speed in the Country.

hspa+ 42mbps its theoretical max.