Alias
TDD 3700

Band 43 is delineated within the 3.7 GHz spectrum, tailored for Time Division Duplexing (TDD). Given its frequency range, Band 43 is well-suited for urban environments and areas with high population densities, striking a balance between coverage and network densification. The TDD configuration provides operators with the flexibility to manage bandwidth, accommodating shifts in uplink and downlink traffic requirements.

Historically used for 4G deployments, Band 43, akin to Band 42, has experienced a transition. The 3.7 GHz spectrum is increasingly being repurposed for 5G technologies. Consequently, traditional 4G deployments in Band 43 have diminished, with a growing emphasis on using this band for 5G.

Technical Characteristics

Technology
Duplexing
Channel Widths
5
,
10
,
15
,
20
UL ARFCN Low
43590
UL ARFCN High
45589
DL ARFCN Low
43590
DL ARFCN High
45589

Geographical Band Usage

Below is a geographical distribution of countries and networks using this 4G band. Data may change without notice.