Like all other wireless base station equipment OEMs, Ericsson offers a baseband unit (BBU)/remote radio unit (RRU) BTS architecture in additional to traditional macrocell BTS cabinets.
RRU Cascading and RRU Interconnection
RRU
RUFull description
Descripción: Comandos RRU
Huawei BBU
Cloud BBUFull description
LTEDescripción completa
LTEDescrição completa
RRU
for awakening chakras to reinvigorate body organs.
HU RRU Power Consumption Sran10c10
6000
McRNC Architecture and Configurations StudentHandoutA4Full description
Cabling the BTS and Creating ConfigurationsFull description
McRNC Architecture and Configurations StudentHandoutA4Deskripsi lengkap
McRNC Architecture and Configurations StudentHandoutA4
Overview • Goal of the Presentation: •This presentation attempts to layout the standard RRU and BBU configurations for the markets. Each configuration is a “per sector” view.
•The choice of RRU & BBU configurations depends on: • The required number of 1900 MHz Carriers (CDMA + EVDO) • Software release 2.0 timeline
• Diplexers are to be avoided • Exceptions when Two 1900 MHz RRUs required and only 1 antenna possible (example Flag Pole) • If Towers can not support RRUs, then Ground Based alternative can be considered •.
BBU3 Needs: • 1 CIMA cards (CDMA control) • 3 CICA-A or CICA-D cards (CDMA & EVDO traffic) Note – 800 MHz CDMA is set on one of the CICA cards
Note: For Sites with only 7 & 8 1900 MHz carriers (after SR 2.0) the 2nd 1900 MHz RRU can be avoided if all carriers are powered down 1dB (**RF Approval required)
CICA-D cards • Can only do 1 EVDO carrier • And, can do 1 Voice carrier (either 800 or 1900 mHz)
CICA –A cards • Can do 2 Voice Carriers (either carrier can be 1900 MHz or you can change one to 800 MHz) 1 BBU can support 3 traffic cards (or 6 carriers) • But, 4 EVDO’s will trigger 2nd BBU • 1 RRU can handle 1 CDMA BBU + 1 LTE BBU • a second CDMA BBU would require a 2nd RRU Attached is the formulas to calculate The correct number of CICA-A & CICA-D cards
