archiveMarch 2019

CBRS Network Architecture: CBRS is known as Citizen broadband radio service, It is a 150 MHz wide broadcast band in  3.5 GHz band starting from 3550 MHz to 3700 MHz. In 2017, the FCC completed a process to establish rules for commercial use of this band. Commercializing this band enables Service Providers/Wireless Operators to use it without acquiring frequency licenses. CBRS frequency spectrum shall help 4G/5G mobile networks deployment quicker and easier. CBRS band is also referred to as 3.5 GHz band. Considering CBRS is deployed with 4G LTE technology, it is very...

3GPP release 8 first time introduce  LTE  Technology.  All following releases  enhanced the technology to next level. 3GPP release 8 provides following feature set for LTE and specifications for this release was frozen in Dec 2008.   High peak data rates : Up to 300 Mbps in Downlink and 75 Mbps in Uplink when using 4×4 MIMO with 20 MHz system bandwidth High spectral efficiency Flexible bandwidths: 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz and 20 MHz FDD and TDD Duplexing Support Short round trip time: 5 ms latency...

3 GPP Release 12 was largely completed on-time in March 2015, with a few exceptional features allowed an extension to later in the year. Release 12 builds on the innovations in Release 10 and Release 11 to further increase performance, efficiency and capabilities. All three releases are known as LTE-Advanced. Figure show evolution of LTE Advance. A priority in this release was to use LTE technology for emergency and security services, with technical specifications for mission-critical application. Mission-Critical Press-to-Talk (MC-PTT) and other features, scheduled in Release 13. 3 GPP Release 12 defines following...