RAN@ TopicsOverview Radio Access Networks Associate
CertificationAreas RAN Fundamentals RAN Evolution RBS and Site
Solution RAN Transport RAN Controllers OSS GSM RAN WCDMA RAN LTE
RANRAN Fundamentals General RAN architecture Radio design
principles Air interface principles Signaling, protocols and layers
Radio network functionalities RAN performance RAN Evolution
Industry technology evolution and trends Technologies together
contributing to mobile operator business evolution Value add of one
common RAN / EVO RANRBS and Site Solution RBS product types and
characteristics, basic technology and architecture of RBS building
modules and their function. Site solution principles, products,
solution concepts, function and characteristics Main
advantages/values, impacts on RAN performance and OPEX reductionRAN
Transport Basic technology and characteristics Architecture and
Interfaces, Synchronization solutions Main advantages/values with
IP RAN Solution and impacts on RAN performanceRAN Controllers BSC
and RNC, products and features, architecture of building blocks and
their function Main advantages/valuesOSS Fundamentals The role of
OSS in Ericsson business support system, functionalities and
features Main advantages/values, impacts on RAN performance and
OPEX reduction.
GSM RAN Fundamentals Technology and characteristics Products,
solutions, functionalities and features Main advantages/valuesWCDMA
RAN Fundamentals Technology and characteristics Products,
solutions, functionalities and features Main advantages/values LTE
RAN Fundamentals Technology and characteristics Products,
solutions, functionalities and features Main advantages/values
Ran@ LinksMain TopicDetailsLinksRAN Fundamentals Describe
general RAN architecture RAN Fundamentals Describe radio design
principlesRAN Fundamentals Describe air interface principlesRAN
Fundamentals Describe signaling, protocols and layersRAN
Fundamentals Describe radio network basic functionalitiesRAN
Fundamentals Describe RAN performance RAN Evolution Evolution of
Ericsson Radio Access NW (WBL) - Radio Access NW
/EVOhttps://ericoll.internal.ericsson.com/SITES/PA_RADIO_ACADEMY_SPACE/default.aspxRAN
Evolution RAN transformation and modernization (WBL) - Radio Access
NW
/EVOhttps://ericoll.internal.ericsson.com/SITES/PA_RADIO_ACADEMY_SPACE/default.aspxRAN
Evolution RAN modernization (WBL) - Radio Access Networks
Academy/EVO
RANhttps://ericoll.internal.ericsson.com/SITES/PA_RADIO_ACADEMY_SPACE/default.aspxRAN
Evolution HetNet, (WBL) WCDMA Academy, RBS
Academyhttps://ericoll.internal.ericsson.com/SITES/PA_RADIO_ACADEMY_SPACE/default.aspxRAN
Evolution Ericsson RAN advantages (WBL) GSM
Academyhttps://ericoll.internal.ericsson.com/SITES/PA_RADIO_ACADEMY_SPACE/default.aspxRAN
Evolution Mobile broadband commercial strategy (WBL) - Radio Access
NW
/EVOhttps://ericoll.internal.ericsson.com/SITES/PA_RADIO_ACADEMY_SPACE/default.aspxRAN
Evolution Boosting MBB with efficient spectrum refarming (WBL) -
GSM
Academyhttps://ericoll.internal.ericsson.com/sites/Ericsson_Academy_GSM_RAN/default.aspx?Paged=TRUE&p_Production_x0020_date=20120120%2023%3a00%3a00&p_Title=Reduced%20OPEX%20for%20APG&p_ID=122&View={52E8C875-F43B-46BF-B268-F486A58FA161}&PageFirstRow=11RAN
Evolution Mobile Broadband - Enhanced Uplink Evolution (WBL) WCDMA
Academyhttps://ericoll.internal.ericsson.com/SITES/PA_RADIO_ACADEMY_SPACE/default.aspxRAN
Evolution One Pipe IP RAN
Academyhttps://ericoll.internal.ericsson.com/sites/ERICSSON_ACADEMY_ERICSSON_IP_RAN/Pages/TechnicalSales.aspxRAN
Evolution Access Networks, an Overview (WBL) Radio Access NW
Academyhttps://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&ActivityId=118910RAN
Evolution Networking Basics, an Overview (WBL) LTE
Academyhttps://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&ActivityId=152130&ClassUnderStruct=False&CallerUrl=%2fsumtotal%2fapp%2ftaxonomy%2flearnerSearch%2fLearnerSearch.aspx%3fUserMode%3d0RAN
Evolution Evolution of Ericsson Radio Access NW (WBL) - Radio
Access NW /EVO
http://learningcontent.internal.ericsson.com/courses/content/PA%20Radio/Business%20Presentations/07.%20RAN%20Evolution%20-%20Evo%20RAN/player.htmlRAN
Evolution RAN transformation and modernization (WBL) - Radio Access
NW /EVO
http://learningcontent.internal.ericsson.com/courses/content/PA%20Radio/Business%20Presentations/RAN%20Transformation%20and%20Modernization/player.htmlRAN
Evolution RAN modernization (WBL) - Radio Access Networks
Academy/EVO
RANhttp://learningcontent.internal.ericsson.com/courses/content/PA%20Radio/Business%20Presentations/RAN%20modernization/player.htmlRAN
Evolution Mobile broadband commercial strategy (WBL) - Radio Access
NW
/EVOhttp://learningcontent.internal.ericsson.com/courses/content/PA%20Radio/Business%20Presentations/Mobile%20broadband%20commercial%20strategy/player.htmlRAN
Evolution Boosting MBB with efficient spectrum refarming (WBL) -
GSM
Academyhttp://streaming.internal.ericsson.com/user/global_player/player.htm?program=11050446RAN
Evolution Mobile Broadband - Enhanced Uplink Evolution (WBL) WCDMA
Academyhttp://learningcontent.internal.ericsson.com/courses/content/PARA/WCDMA/WCDMA111028_Mobile_Broadband_Enhanced_Uplink_Evolution/player.htmlRAN
Evolution One Pipe IP RAN AcademyRAN Evolution PPM of 2012 (video
& WBLs)RBS Academy:RBS 6000 in a Nutshell (WBL) RBS
Academyhttps://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&ActivityId=358463&ClassUnderStruct=False&CallerUrl=%2fsumtotal%2fapp%2ftaxonomy%2flearnerSearch%2fLearnerSearch.aspx%3fUserMode%3d0RBS
Academy:HetNet (WBL) RBS
Academyhttps://ericoll.internal.ericsson.com/SITES/PA_RADIO_ACADEMY_SPACE/default.aspxRBS
Academy:WiFi Primer: part 1 and 2 (WBL) RBS
Academyhttps://ericoll.internal.ericsson.com/SITES/PA_RADIO_ACADEMY_SPACE/default.aspxRBS
Academy:Site Power Solutions (WBL) Site Solution
Academyhttps://ericoll2.internal.ericsson.com/sites/Ericsson_Academy_Site_Solution/Pages/home.aspxRBS
Academy:RBS Installation products enables OPEX savings (WBL) Site
Solution
Academyhttps://ericoll2.internal.ericsson.com/sites/Ericsson_Academy_Site_Solution/Pages/home.aspxRBS
Academy:Antenna Integrated Radio, AIR RBS Academy, Site Solution
Academyhttps://ericoll2.internal.ericsson.com/sites/Ericsson_Academy_Site_Solution/Pages/home.aspxRBS
Academy:PSI Coverage (WBL) RBS
Academyhttps://ericoll2.internal.ericsson.com/sites/Ericsson_Academy_Site_Solution/Pages/home.aspxRBS
Academy:Antenna system and migration (WBL) Site Solution
Academyhttps://ericoll2.internal.ericsson.com/sites/Ericsson_Academy_Site_Solution/Pages/home.aspxRBS
Academy:Ericsson Remote Site Management (WBL) Site Solution
Academyhttps://ericoll2.internal.ericsson.com/sites/Ericsson_Academy_Site_Solution/Pages/home.aspxRBS
Academy:Site Power consumption (WBL) Site Solution
Academyhttps://ericoll2.internal.ericsson.com/sites/Ericsson_Academy_Site_Solution/Pages/home.aspxRBS
Academy:RBS 6000 Power Solutions (WBL) Site Solution
Academyhttps://ericoll2.internal.ericsson.com/sites/Ericsson_Academy_Site_Solution/Pages/home.aspxRBS
Academy:RBS 6000 Overview
(WBL)http://learningcontent.internal.ericsson.com/courses/content/PARA/RBS/Inspelning%20RBS%206000%20overview/RBS%206000%20Overview%20May%202012/player.htmlRBS
Academy:RBS 6000 in a Nutshell
(WBL)https://login.ericsson.net/login/login.fcc?TYPE=33554433&REALMOID=06-ff2a5bd4-36cb-4068-9e14-c5e75a42cd61&GUID=&SMAUTHREASON=0&METHOD=GET&SMAGENTNAME=$SM$o2HC4Sbwzrnt6%2fUVUuqElzzPiLM79mOpzj9867Z2QV0%2bufYm0s0pvZPBb94bzYBd&TARGET=$SM$HTTPS%3a%2f%2ffss%2eericsson%2enet%2fsiteminderagent%2fredirectjsp%2fesignon-net%2ejsp%3fSPID%3dMyLearning%26RelayState%3d$%2fsumtotal$%2fapp$%2fmanagement$%2fLMS_ActDetails%2easpx$%3fUserMode$%3d0$%26tu$%3d0$%26ActivityId$%3d142825$%26lang$%3d%26SMPORTALURL%3dhttps$%3A$%2F$%2Ffss%2eericsson%2ecom$%3A443$%2Faffwebservices$%2Fpublic$%2Fsaml2ssoRBS
Academy:SW licensing and HW activation codes
(WBL)http://learningcontent.internal.ericsson.com/courses/content/PARA/WCDMA/WCDMA110823_Software_licensing_and_hardware_activation_codes/player.htmlRBS
Academy:HetNet
(WBL)http://learningcontent.internal.ericsson.com/courses/content/PARA/RBS/WCDMA120316_Heterogeneous_Networks/player.htmlRBS
Academy:WiFi Primer: part 1 and 2 (WBL)RBS Academy:Antenna
Integrated Radio, AIR RBS Academy, Site Solution
Academyhttp://learningcontent.internal.ericsson.com/courses/content/PARA/RBS/Antenna%20Integrated%20Radio/player.htmlRBS
Academy:PSI Coverage
(WBL)http://learningcontent.internal.ericsson.com/courses/content/PARA/RBS/PSI_Coverage_An_Innovative_Solution/player.htmlSite
Solution Academy:Site Power Solutions
(WBL)http://learningcontent.internal.ericsson.com/courses/content/PA%20Radio/Business%20Presentations/12.%20Site%20Power%20Solutions/player.htmlSite
Solution Academy:RBS Installation products enables OPEX savings
(WBL)http://learningcontent.internal.ericsson.com/courses/content/PA%20Radio/Business%20Presentations/08.%20RBS%20Installation%20products%20-%20enables%20OPEX%20savings/player.htmlSite
Solution Academy:Antenna system and migration
(WBL)http://learningcontent.internal.ericsson.com/courses/content/PA%20Radio/Business%20Presentations/10.%20Antenna%20system%20and%20migration/player.htmlSite
Solution Academy:Ericsson Remote Site Management
(WBL)http://learningcontent.internal.ericsson.com/courses/content/PA%20Radio/Business%20Presentations/Ericsson%20Remote%20Site%20Management/player.htmlSite
Solution Academy:Site Power consumption
(WBL)http://learningcontent.internal.ericsson.com/courses/content/PA%20Radio/Business%20Presentations/12.%20Site%20Power%20Solutions/player.htmlSite
Solution Academy:Site Power Solutions (WBL) Site Solution
Academyhttp://learningcontent.internal.ericsson.com/courses/content/PA%20Radio/Business%20Presentations/12.%20Site%20Power%20Solutions/player.htmlSite
Solution Academy:RBS 6000 Power Solutions
(WBL)http://learningcontent.internal.ericsson.com/courses/content/PA%20Radio/Business%20Presentations/RBS%206000%20Power%20Solutions/player.html2GAccess
Networks, An
Overviewhttps://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&tu=0&ActivityId=118910&lang=2GGSM
Radio Access Network
Overviewhttps://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&tu=0&ActivityId=152565&lang=2GGSM/WCDMA
Basics
(WBL)https://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&tu=0&ActivityId=211281&lang=2GEricsson
RAN advantages (WBL) GSM
Academyhttp://learningcontent.internal.ericsson.com/courses/content/PARA/WCDMA/WCDMA101129_Ericsson_RAN_Leadership_RAN_Advantages/player8.html2GVMOShttp://learningcontent.internal.ericsson.com/courses/content/PARA/GSM/Monetize%20on%20Voice%20Efficiency%20VAMOS/player.html2G
GPRS Overview
(WBL)https://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&ActivityId=36773&lang=en-US2GEDGE
Evolution (WBL) 24
slideshttp://learningcontent.internal.ericsson.com/courses/content/PARA/GSM/GSM101116_EDGE_Evolution/player.html2GImprove
the handling of smart phones in GSM RAN
(Video)http://streaming.internal.ericsson.com/user/global_player/player.htm?program=110505512Ghttp://learningcontent.internal.ericsson.com/courses/content/itemtracker.asp?group=GSM+RAN&owner=ETOMVIL&title=Improve+the+handling+of+smartphones+in+GSM+RAN&filepath=http://gask2web.ericsson.se/pub/picov/get?DocNo%3D091/22109-FGB101220%26Lang%3DEN%26Format%3D*Source*%26HighestFree%3DY3G
WCDMA Radio Access Network Overview (WBL)
https://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&tu=0&ActivityId=152449&lang=3GWCDMA
Overview (Product release specific WBL)3G WCDMA Delta in a Nutshell
(Product release specific
WBL)https://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&tu=0&ActivityId=194108&lang=3GWCDMA
RAN and HSPA Evolution (WBL)
http://learningcontent.internal.ericsson.com/courses/content/PARA/WCDMA/WCDMA100630_WCDMA_RAN_and_HSPA_Evolution/player.html3GEricsson
HSDPA System Techniques
(WBL)http://learningcontent.internal.ericsson.com/courses/content/Commercial%20Management/HSPA%20Advantages/player.html3GHSPA
advantages - compared to competitors (WBL)3GWCDMA Enhanced Uplink
(WBL)https://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&tu=0&ActivityId=152564&lang=3GWCDMA
SEAMLESS
Heterogeneous_Networkshttp://learningcontent.internal.ericsson.com/courses/content/PARA/RBS/WCDMA120316_Heterogeneous_Networks/player.html3GPPM
video & WBLs, PPM 20123GWCDMA Enhanced Uplink
(WBL)https://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&ActivityId=152564&ClassUnderStruct=False&CallerUrl=%2fsumtotal%2fapp%2ftaxonomy%2flearnerSearch%2fLearnerSearch.aspx%3fUserMode%3d0LTEEthernet
Standards (WBL) LTE Academy, IP RAN
Academyhttps://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&ActivityId=143648&ClassUnderStruct=False&CallerUrl=%2fsumtotal%2fapp%2ftaxonomy%2flearnerSearch%2fLearnerSearch.aspx%3fUserMode%3d0LTELTE
Radio Interface (WBL) LTE
Academyhttps://ericoll.internal.ericsson.com/sites/Ericsson_Academy_LTE/Pages/LTEAirInterfaceCoursePortal.aspxLTELTE
KPIs and Acceptance (WBL) LTE
Academyhttps://ericoll.internal.ericsson.com/sites/Ericsson_Academy_LTE/Pages/LTETuningCoursePortal.aspxLTELTE
Network Design Overview (WBL) LTE
Academyhttps://ericoll.internal.ericsson.com/sites/Ericsson_Academy_LTE/Pages/BusinessTutorials.aspxLTELTE
Protocols and Procedures (Course Portal of WBLs) LTE
Academyhttps://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&ActivityId=374498&ClassUnderStruct=False&CallerUrl=%2fsumtotal%2fapp%2ftaxonomy%2flearnerSearch%2fLearnerSearch.aspx%3fUserMode%3d0LTE
LTE Fundamentals (WBL) 27
slideshttp://learningcontent.internal.ericsson.com/courses/content/LTE-EPC/Common/Business%20Tutorials/LTE%20Fundamentals/player.htmlLTE
LTE/SAE in a nutshell (WBL)24
slideshttps://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&ActivityId=142844&tu=0&lang=en-USLTE
LTE /SAE System Overview (WBL)60
slideshttps://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&tu=0&ActivityId=215989&tu=0&lang=LTE
LTE/EPC Overview (WBLs in Course Portal)60
minhttps://ericoll.internal.ericsson.com/sites/Ericsson_Academy_LTE/Pages/LTEEPCOverviewCoursePortal.aspxLTELTE
Radio Network Design OverviewLTELTE/EPC
Overviewhttps://ericoll.internal.ericsson.com/sites/Ericsson_Academy_LTE/Pages/LTEEPCOverviewCoursePortal.aspxLTELTE
Features &
Functionalityhttps://ericoll.internal.ericsson.com/sites/Ericsson_Academy_LTE/Pages/LTEFeaturesFunctionalityCoursePortal.aspxLTELTE
Air Interface (WBLs in Course
Portal)https://ericoll.internal.ericsson.com/sites/Ericsson_Academy_LTE/Pages/LTEAirInterfaceCoursePortal.aspxRAN
Transport FundamentalsIP Overview (WBL)Same AS IPRAN Transport
FundamentalsIP Fundamentals (WBL)RAN Transport FundamentalsIP RAN
Transport (WBL)RAN Transport FundamentalsIPv6 Overview (WBL)RAN
Transport FundamentalsIPv6 fundamentals (WBL)RAN Transport
FundamentalsIP Multicast overviewRAN Transport FundamentalsIP QoS
Overview (WBL)RAN Transport FundamentalsTCU02 overview (WBL)RAN
Transport FundamentalsCarrier Ethernet Overview (WBL)RAN Transport
FundamentalsIP Routing Overview (WBL)RAN Transport FundamentalsIP
RAN Synchronization (WBL) under development, launch in Q3RAN
Transport FundamentalsRAN Transport FundamentalsRAN Transport
FundamentalsRAN Transport FundamentalsRAN Transport FundamentalsRAN
Transport FundamentalsRAN Transport FundamentalsRAN Transport
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Transport Fundamentals Describe the role of RAN transport, the
basic technology and characteristics, the architecture and
interfaces, synchronization solutionsRAN Transport Fundamentals
Describe the main advantages/values with IP RAN solution and
impacts on RAN performanceRAN Controller FundamentalsEVO Controller
8000 (WBL) WCDMA Academy
http://learningcontent.internal.ericsson.com/courses/content/PARA/WCDMA/WCDMA101221_EVO_Controller_8000/player.htmlRAN
Controller FundamentalsEVO Controller 8000 updates (WBL) WCDMA
Academyhttps://ericoll.internal.ericsson.com/sites/ERICSSON_ACADEMY_wcdma_ran/Pages/OperationSupport.aspxRAN
Controller FundamentalsRAN Controller Fundamentals Describe the
role of RAN transport, the basic technology and characteristics,
the architecture and interfaces, synchronization solutionsRAN
Controller Fundamentals Describe the main advantages/values with IP
RAN solution and impacts on RAN performanceRAN OSSOSS in Modern
Networks - OSS
Academyhttp://learningcontent.internal.ericsson.com/courses/content/PARA/OSS/NDM/Articulate/OSS%20in%20Modern%20Networks/player.htmlRAN
OSSOSS-RC overview (WBL) OSS
Academyhttps://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&ActivityId=370959&ClassUnderStruct=False&CallerUrl=%2fsumtotal%2fapp%2ftaxonomy%2flearnerSearch%2fLearnerSearch.aspx%3fUserMode%3d0RAN
OSSOSS-RC Features and Roadmap (Video) OSS
Academyhttp://streaming.internal.ericsson.com/user/global_player/player.htm?program=11050920RAN
OSSOSS-RC functionality for LTE (Centra) LTE AcademyRAN OSSTotal
Network Performance ENIQ (WBL) OSS Academy/AssuranceRAN OSSThe
Importance of OSS in Self Organizing Networks OSS Ac./PBORAN OSSSON
Overview (WBL) LTE AcademyRAN OSSSON detailed functionality (WBL)
LTE
Academyhttps://www.myericssonlearning.com/sumtotal/app/management/LMS_ActDetails.aspx?UserMode=0&ActivityId=374509&ClassUnderStruct=False&CallerUrl=%2fsumtotal%2fapp%2ftaxonomy%2flearnerSearch%2fLearnerSearch.aspx%3fUserMode%3d0IMShttps://ericoll.internal.ericsson.com/sites/Ericsson_Academy_IMS/default.aspx?ntlm=true&SIGNUM=ebinopa
TEMS Cellplanner for LTE
Overviewhttp://learningcontent.internal.ericsson.com/courses/content/LTE-EPC/LTE/LTE019%20-%20TEMS%20Cellplanner%20for%20LTE%20Overview/player.htmlo
OSS-RC functionality for LTE (Centra) LTE Academyo Total Network
Performance ENIQ (WBL) OSS
Academy/Assurancehttp://streaming.internal.ericsson.com/user/global_player/player.htm?program=11050994o
The Importance of OSS in Self Organizing Networks -
OSSAcademy/PBO
o SON Overview (WBL) LTE Academy
http://learningcontent.internal.ericsson.com/courses/content/LTE-EPC/LTE/LTE031%20-%20LTE%20SON%20Overview/centra/start.exeo
SON detailed functionality (WBL) LTE
Academyhttp://learningcontent.internal.ericsson.com/courses/content/LTE-EPC/LTE/LTE006%20SON%20Detailed%20Functionality%20in%20L10/player.htmlo
PPM of 2012 (video & WBLs)LTE TechnologySessionPlayback LinkLTE
Fundamentals (NSL744752)
https://host3.sabameeting.com:443/GP/main/000000457d210000012dace0ae66c922Ericsson
LTE Features, Parameters, Counters, & KPIs (PQL841734)
https://host3.sabameeting.com:443/GP/main/000000457d210000012dace0ae66c927TAC
and PCI Planning (SLP971237)
https://host3.sabameeting.com:443/GP/main/000000fa39d70000012dacddca56c91cIntegrating
LTE RBS with DAS (FLQ110283)
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Configurations (KSM164752)
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(LPP076088)https://host3.sabameeting.com:443/GP/main/000000457d210000012dace0ae66cdefIRAT
Trial and Analysis
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SessionPlayback LinkLTE EPS
Overviewhttps://host3.sabameeting.com:443/GP/main/0000002c17f70000012f923bcb718cba
System Engineering End to End
Approachhttps://host3.sabameeting.com:443/GP/main/0000002c17f70000012f923bcb718cbfLTE
Road
Maphttps://host3.sabameeting.com:443/GP/main/000000867fc90000012f9236ba7c8f9f
LTE Basic Features DescriptionRandom
Accesshttps://host3.sabameeting.com:443/GP/main/000000867fc90000012f9236ba7c8fa8Power
Controlhttps://host3.sabameeting.com:443/GP/main/0000002c17f70000012f923bcb718f5a
Intra-LTE
Handoverhttps://host3.sabameeting.com:443/GP/main/000000867fc90000012f9236ba7c8fb4
Automated Neighbor Relations
(ANR)https://host3.sabameeting.com:443/GP/main/000000867fc90000012f9236ba7c8fc1
Coverage-Triggered CDMA-eHRPD Session
Continuityhttps://host3.sabameeting.com:443/GP/main/0000002c17f70000012f923bcb718f94Inter-Frequency
Handoverhttps://host3.sabameeting.com:443/GP/main/000000867fc90000012f9236ba7c8f96PM-Initiated
UE
Measurementshttps://host3.sabameeting.com:443/GP/main/0000002c17f70000012f923bcb718fd7
LTE Tuning and
OptimizationRetainabilityhttps://host3.sabameeting.com:443/GP/main/000000867fc90000012f9236ba7c8f7cUETR/CTR
and
parsershttps://host3.sabameeting.com:443/GP/main/0000002c17f70000012f923bcb718fae
Statistics and KPIsENIQ and KPI
formulashttps://host3.sabameeting.com:443/GP/main/0000002c17f70000012f923bcb718f9b
ITKhttps://host3.sabameeting.com:443/GP/main/0000002c17f70000012f923bcb718fce
UE Logging and Post ProcessingTEMS Investigation and
Discoveryhttps://host3.sabameeting.com:443/GP/main/0000002c17f70000012f923bcb718ffb
LTE ToolsTIPP-L
(MHQ453384)https://host3.sabameeting.com:443/GP/main/000000457d210000012dace0ae66ca51MCOM
(HDL401151)https://host3.sabameeting.com:443/GP/main/000000457d210000012dace0ae66ca4cTEMS
Discovery
(KNK245732)https://host3.sabameeting.com:443/GP/main/000000457d210000012dace0ae66ca40ITK
(HPD300740)https://host3.sabameeting.com:443/GP/main/000000457d210000012dace0ae66cdfcNEMO
Learning Session
(HJG517251)https://host3.sabameeting.com/GP/main/000001fa681c0000012e5e653e50e2bcActixhttps://host3.sabameeting.com:443/GP/main/0000006963d0000001311f469d03bf4eActix
Advancehttps://host3.sabameeting.com:443/GP/main/000000e5355f00000132ab097a5684efNeohttps://host3.sabameeting.com:443/GP/main/0000004310d0000001311f4664329cd5ERTT
&
Auditshttps://ericoll.internal.ericsson.com/sites/GKO/Lists/GKO/DispForm.aspx?ID=95915&Source=https%3A%2F%2Fericoll%2Einternal%2Eericsson%2Ecom%2Fsites%2FGKO%2FLists%2FGKO%2FAllItems%2Easpx&RootFolder=%2Fsites%2FGKO%2FLists%2FGKOActixhttps://host3.sabameeting.com:443/GP/main/0000004eb04300000132097868d285f9
Advance Discovery
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Discovery
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ConsolidatedQuestionAnswerJatin's Answer Describe the Site
Design Procedure in Order.Businees
meeting-Planning-Integration-Initial
Tuning-Launch-OptimizationBusinees
meeting-Planning-Integration-Initial Tuning-Launch-Optimization1.
What type of traffic is managed by logical A interface?BSC to Core
Network Voice Traffic.BSC to Core Network Voice Traffic.10. How can
an existing GSM/WCDMA operator offer voice services when LTE is
introduced?(Choose 2) - LTE is packet switched implying voice can
be carried through VoIP and legacy GSM/WCDMA systems to carryLTE is
packet switched implying voice can be carried through VoIP and
legacy GSM/WCDMA systems to carry100.Why frequency synchronisation
is used in RBS?To avoid sync loss and delay spreading101.Use of
time and phase synchronisation in RBS?UE sync102.Which polarization
is used in antenna transmission.Cross polarizationCross
polarization103.which unit is connected to handle, sw,rr management
in rbs 2000?104.RBS3820 is better than RBS 3810 why?105.ue is
connected in cs network, but cannot make call.Effected
KPI?Accessbility106.WHAT IS THE IMPACTS OF 2X2 mimo TRASMISSION
like that.Improved throughput107.Cell breathing?Shrinking of n/w on
basis of loading108.functionas of EVO RAN?Its a RAN that the node
must supports multiple radio access technologies as per 3GPPIts a
RAN that the node must supports multiple radio access technologies
as per 3GPP109.funcion of TIU?11. What is the definition of a
connected user in LTE? - A user that has RRC connectionA user that
has RRC connection110.function of TCU?Transfer data of different
RAN over IPTransfer data of different RAN over IP111.Ericsson
mSMM?112.What are the advantages of rbs 6601?Very small Indoor Main
unit which can inserted in existing Macro RBS itselfVery small
Indoor Main unit which can inserted in existing Macro RBS itself12.
What does VAMOS provide? - Capability to achieve upto 32 speech
channels per TRXCapability to achieve upto 32 speech channels per
TRX13. What is the main benefit of upgrading an RBS3000 with DUW? -
An increase in the physical Channel ElementsAn increase in the
physical Channel Elements14. What information can be obtained from
CPICH? - Scrambling codeScrambling code15. What are 2 purposes of
power control in WCDMA systems? - Managing power capacity and
Reducing interferenceManaging power capacity and Reducing
interference16. What are 2 aspects of Automatic Neighbor Relation
(ANR) as per Ericsson implementation? (Choose 2)- ANR is to add
neighbors based on UE measurements for optimization, initial
neighbor plan requiredANR is to add neighbors based on UE
measurements for optimization, initial neighbor plan required17.
What is a softer handover? - The UE connected to 2 cells in the
same RBSThe UE connected to 2 cells in the same RBS18. Each
timeslot on TDMA frame is a physical channel. How many physical
channels per GSM carrier frequency? - 8 time slots/physical
channels per frequency8 time slots/physical channels per
frequency19. What are the 2 limiting factors on capacity of a GSM
cell?(Choose 2) - Number of installed TRX and Number of available
frequenciesNumber of installed TRX and Number of available
frequencies2. What are 2 procedures that characterize idle mode
behaviour? - Location area update and Cell Reselection.Location
area update and Cell Reselection.20. What is Ericsson definition of
a Channel Element? - CE is a measure of board capacity and radio
bearer (RB) capacity costCE is a measure of board capacity and
radio bearer (RB) capacity cost21. What is a Multi Standard
Radio?(Choose 2) - Its a hardware unit capable of sharing its
transmitter between different radio access technologies and is a
common 3GPP specification for GSM, WCDMA & LTEIts a hardware
unit capable of sharing its transmitter between different radio
access technologies and is a common 3GPP specification for GSM,
WCDMA & LTE22. What is the benefit of an all IP RAN in a
multi-RAN solution? - Reduced deployment costs and savings on
OPEXReduced deployment costs and savings on OPEX23. What is a
HetNet?(Choose 2) - Its a network topology of different radio
access technologies co-existing together with small cells embedded
in larger cell coverage area- network topology where small cells
are used to offload macro cells Its a network topology of different
radio access technologies co-existing together with small cells
embedded in larger cell coverage area- network topology where small
cells are used to offload macro cells24. What is an Evo RAN? - Its
a RAN that supports multiple radio access technologies as per
3GPPIts a RAN that supports multiple radio access technologies as
per 3GPP25. What is Ericsson AIR solution? - A single unit combing
antenna with the active radio part to simplify installation process
in difficult site locations.A single unit combing antenna with the
active radio part to simplify installation process in difficult
site locations.26. How does OSS save OPEX? - By the introduction of
Self Organizing Networks functionality within the OSS portfolio By
the introduction of Self Organizing Networks functionality within
the OSS portfolio27. What technologies are supported by RBS 6000
series?(Choose 3) - LTE, CDMA & WifiLTE, CDMA & Wifi28.
What parameter is to be considered while dimensioning battery
backup capacity for an RBS? - The power consumption of the RBS at
maximum radio power outputThe power consumption of the RBS at
maximum radio power output29. What are the 2 main drivers of an
In-building solutions? (Choose 2) - Dedicated in-building systems
offload macro network and majority of mobile broadband traffic is
located within buildings1) Dedicated IBS to offload macro N/w2)
Majority of mobile traffic is located withing buildings3
Characterstics of Radio KPIDelay,packet loss,Delay,packet loss,3.
What are NAS messages? - Messages between UE and Core
NetworkMessages between UE and Core NetworkMessages between UE and
Core Network30. What is the main purpose of a TMA? - To improve the
uplink coverage To improve the uplink coverage in a location31.
Which are the 2 logical interfaces in LTE? - S1 & X2S1 &
X232. which two interface are connected to BSC node?-- GB and A
interfaceGB and A interface33. Characteristics of Abis for VAMOS
and Edge Evolution?(Choose 2)--1. Packet Abis (Abis Optimization or
Abis over IP) 2. Edge enabled TRX1. Packet Abis 2. Edge enabled
TRX34. Electrical Tilt increased which 2 KPI will be affected ?--
Accesibility & RetainabilityAccesibility & Retainability35.
After Optimisation Uplink throughput increases which KPI affected
?--IntegrityIntegrity36. Three types of Handover in WCDMA ?--
Soft/Softer/IRATSoft/Softer/IRAT37. Baseband Unit in RBS 6000?--
DUDU38. what is the use of OBIf unit in RBS 3000?Alaram
handlingAlaram handling39. what is Evo controller multi node? A
node sharing its resources for GSM & WCDMA TrafficA node
sharing its resources for GSM & WCDMA Traffic4. What are 2
functionalities of RNC & BSC? - Handling Radio Resource
management & RBS control, Mobility managementHandling Radio
Resource management & RBS control, Mobility management40.
Protocaol on Iu interface? RANAPRANAP41. Difference between Link
budget of WCDMA and LTE? A. Antenna GainB. UL SensitivityC.
Penetration LossD. Radio wave propagation - Think UL sensitivity,
due to soft HO gain, not sureUL Sensitivity & Radio wave
propagationUL Sensitivity42. which mode shows reliable data
transfer to the target?-- Connection oriented / Acknowledge
modeAcknowledge mode43. Difference Between HD BSC and EVO 8100? IP
Supported/ BSC that is RNC PreparedIP Supported/ BSC that is RNC
Prepared44. which KPI is affected due to congestion in network?
AccesibilityAccesibility45. Which release of 3GPP does LTE come
under? Release 8Release 846. Which KPI can be improved by
optimizing Neighbour Relations? RetainabilityRetainability47. What
is the procedure for gaining access to system called? Random
AccessRandom Access48. Which Layer is responsible for Modulation
and Radio Measurements? Physical LayerPhysical Layer49. Identify
two Propagation models among the the options given? Okumura- Hata
& Cost231 Okumura- Hata & Cost2315. What are 2 elements
that limit throughput according to Shannon's Theorem? - Signal to
Noise Ratio (SNR) and BandwidthSignal to Noise Ratio (SNR) and
Bandwidth50. What are functionalities of CQI (Choose 2)? Reported
by UE to the node B & Used by scheduler for Radio Resource
schedulingReported by UE to the node B & Used by scheduler for
Radio Resource scheduling51. What kind of data can be carried by
physical channels? Speech, Data & SignallingSpeech, Data &
Signalling52. What are the advantages of AMR?AMR encodes narrow
band to varialble 53. What is frequency Reuse? The use of limited
number of frequencies within a given areaThe use of limited number
of frequencies within a given area54. Which is the stage after
integration and before launch? Initial TuningInitial Tuning55.
Which Unit in RBS6000 is responsible for IP packet routing?
TCUTCU56. What is the importance of time and phase synchronization
in LTE?Time-GPS,Phase-NTP For sync of UE57. Why is frequency
synchronization important in RBS?OssiclatorOssiclator58. What is
the function of TIU? - Transport Interface UnitTransport Interface
Unit59. What is the difference in traffic carried by Evoc8100/BSC
& Evoc8200/BSC? - twicetwice6. What air interface access
technology is used in uplink LTE? - SC-FDMASC-FDMA60. What is the
role of Primary Scrambling code in WCDMA? To identify cells in DL
and Users in ULTo identify cells in DL and Users in UL61. What is
the layer 2 protocol on User Plane? - MAC MAC62. What is the
process of selection of a suitable candidate during new site roll
out? (same question in some diff words) - Site SurveySite Survey63.
What is the Spreading Factor of HS-PDSCH? - 161664. EVO controller
supports which of the following? - 5 options given, select 3,
answer is all except AXE & APZ5 options given, select 3, answer
is all except AXE & APZ65. Which 2 areas an operator can
benefit using Ericsson Site Controller & Ericsson Remote Site
controller?A. Efficient blackhaul planningB. Energy managementC.
Improved Cell capacityD. Site securityNot sureB. Energy
managementD. Site security66. What are the characterestics of TCU?
Choose twoA. Queue in Queue (C-VLAN and S-VLAN)B. IP over TDMC. TDM
over IPD. Traffic policingB,C not sureC. TDM over IPC. TDM over
IPD. Traffic policing67. How is frequency synchronization achieved
in TCU? (something like that)A. Hold over time in TCU is greater
than hold over time in DUB. TCU has higher frequency precisionC.
Simplifies the synchronization recovery procedureD. Possiblity to
control different synchronization methodsHold over time in TCU is
greater than hold over time in DUA. Hold over time in TCU is
greater than hold over time in DU68. What are the benfits of multi
Antenna in LTE? - higher data rates & improves coverage higher
data rates & improves coverage69. What is the order of Network
Roll out? - Buisness Plan> Design > installation >
integration > initial tunning >Launch>
optimizationBuisness Plan> Design > installation >
integration > initial tunning >Launch> optimization7. What
are 2 reasons that trigger compressed mode? - Weak 3G coverage
(IRAT) and Pilot pollutionWeak 3G coverage (IRAT) and Pilot
pollution70. The HW unit that is used as interface from RBS6000 and
the transport ? - DUDU71. What is true related to dB?a. dBm is
relative to 1mWb. dB is unitlessc. dBi is directional gain of
antennad. 3dB gain means 4 time increase in valueANS - A,B,Ca. dBm
is relative to 1mWb. dB is unitlessc. dBi is directional gain of
antennaa. dBm is relative to 1mWb. dB is unitlessc. dBi is
directional gain of antenna72. The factors that affect the IP
network? (Something like that) (Choose 3) - Delay, Delay Variation
& Packet LossDelay, Delay Variation & Packet Loss73.
Reasons for calculating Link Budget.? Coverage, Cell
RadiusCoverage, Cell Radius74. What Are the main Difference betwn
Quality of service classes75.Which Factors Defines Cell peak LTE
Thruput.Bandwidth and Users76.which board in EnodeB is for
processing radio Resource management function in LTE?77.What is
Cell Breathing? Variation in coverage of a cell due to changes in
number of usersVariation in coverage of a cell due to changes in
number of users78.Main Difference between GPRS and EGPRSEnhanced
GPRS > Higher data rates available 384 KBPS79. Dimension of
Resource Block in time and freq domain? 0.5ms & 180Khz0.5ms
& 180Khz8. How does the UE estimate the radio quality of an LTE
cell? - By measuring the reference signalBy measuring the reference
signal80.what is the radio performance benefit of AIR? ~1dB Better
in UL and ~1dB better in DL1dB Better in UL and ~1dB better in
DL81.Benifit of EVOC8200 BSC when compared to EVOC8100/HD BSC?
Multi Standard on common boardMulti Standard on common board83.What
are the product included in IPRAN reference Solution? Smart Edge
and TCUSmart Edge and TCU84. What is the basic difference between
UE Category? Support Modulation & Max Transport FormatSupport
Modulation & Max Transport Format85.What is the benefit of
VAMOS? It doubles GSM Capacity It doubles GSM Capacity86.what is
Radio Resource management?87.What is Ericsson Solution to Minimize
Footprint? RBS 6102 with integrated pwr & battery backup, RBS
6101 with pwr with Battery base unit(BBU)RBS 6102 with integrated
pwr & battery backup, RBS 6101 with pwr with Battery base
unit(BBU)88.what is spectrum refarming? Separating a chunk of
frequency from existing frequencies for LTESeparating a chunk of
frequency from existing frequencies for LTE89.Error Detection in
Air interface is done by? CRCCRC9. What modulation offers the
highest speed for EGPRS? - 8 PSK8 PSK90.what is one transport Pipe?
One common pipe for GSM, WCDMA,& LTEOne common pipe for GSM,
WCDMA,& LTE91.Radio Frame in LTE? 10ms10ms92. RNC3820 advantage
/ Difference for RNC381093. Use of TIU in RBS600094. Which battery
is good in fluctuating AC Grid95. Queuing is happening in UMTS N/w.
User will be effected in which ways? (Choose 2)Throughput and
buffering96. Effect of Smartphone in UMTS?1. Control increased
usage 2. Sharing of more cells at same time 3. Usage of resources
(Have 1 more option, Need to select one)97. IuB Connection Unit in
RBS60001.DUL 2.DUG 3.DUW 4.TIUTIUTIU98. UE is in Idle state but not
able to make call.. Effected KPI? A.Accessbility B. Retainability
C. Availability D. IntergrityAccessbilityAccessbility99. Layer2
Control Plane protocols -a. RRC b.RLC c.PDCP d.MACAdvantages of IP
RANOPEXOPEXBaseband Unit Name in RBS 6000 Series.DUW-Digital Unit
WCDMADUW-Digital Unit WCDMABenefits of NMS.Openness, adaptibility,
expandability, precise, practicability & flexibilityOpenness,
adaptibility, expandability, precise, practicability &
flexibilityBSC & RNC FunctionalitiesHandling Radio Resource
management & RBS control, Mobility managementHandling Radio
Resource management & RBS control, Mobility managementBSC
FunctionalitiesBSC FunctionalitiesEVO controller 8200 W12
Capacity6000 RBS/20000 Cells, 8* 10 GE Ports, 8 Ports STM-16000
RBS/20000 Cells, 8* 10 GE Ports, 8 Ports STM-1How Syncronisation is
Achieved over IP SoIP- (Main experience today is from NTP), PTP,
Synchonous Ethernet, radio nw freq sync via backhaul n/w-MSMM(Multi
standard Multi Mode)SoIP- (Main experience today is from NTP), PTP,
Synchonous Ethernet, radio nw freq sync via backhaul n/w-MSMM(Multi
standard Multi Mode)Maximum Carrier support by RRUS 1144Multi
antenna AdvantagesOptions are - Improve coverage,redundency, / beam
forming, spatial diversity, Tx & Rx divOptions are - Improve
coverage,redundency, / beam forming, spatial diversity, Tx & Rx
divProtocol on IurRNSAPRNSAPRAN Syncronisation MethodsSoIP, PTP,
Synchonous Ethernet, radio nw freq sync via backhaul n/w-MSMM(Multi
standard Multi Mode)SoIP, PTP, Synchonous Ethernet, radio nw freq
sync via backhaul n/w-MSMM(Multi standard Multi Mode)SF used in
HS-PDSCHHS-PDSCH SF 16, The Downlink HS-SCCH is a fixed rate (60
kbps, SF=128) , HS-DSCH SF 16HS-PDSCH SF 16, The Downlink HS-SCCH
is a fixed rate (60 kbps, SF=128) , HS-DSCH SF 16synchronization is
more sensitive by which factorBERBERTCU Supports which
FunctionalitiesTransfer data of different RAN over IPTransfer data
of different RAN over IPTCU/SIU Function'sOption-TDM / Transport
connection unit, to other RBSs, to support sync tech, Ericsson IP
RAN reference solutionOption-TDM / Transport connection unit, to
other RBSs, to support sync tech, Ericsson IP RAN reference
solutionVoltage of RU in RBS 6000.-48 V DC-48 V DCWhat are site
Survey's Done for.what does TCU brings to RBSTransport connection
unit, to other RBSs, to support sync tech, Ericsson IP RAN
reference solutionTransport connection unit, to other RBSs, to
support sync tech, Ericsson IP RAN reference solutionwhat is Board
Handling User Plane Traffic in RNC 3820.SPBSPBwhat is GSM OMT tool
does.GSM site Online monitoring toolGSM site Online monitoring
toolwhat is GX interfaceon-line policy interface between the GGSN
and the charging rules function (CRF)on-line policy interface
between the GGSN and the charging rules function (CRF)What is
HWACHardware Activation Codes for TRXHardware Activation Codes for
TRXwhat is the advantage of allowing the TCU-02/SIU 02 to
distribute the frequency synchronisation to the DUs ??Hold over
time in TCU is greater than hold over time in DUWhat Iur Link Used
For.for SHO bet RNCsfor SHO bet RNCsWhich 2 Techniques make most of
the Spectrum Utilisation.Modulation/MIMOModulation/MIMOWhich Device
is Used to combine Different 3GPP Frequency Bands.duplex filters /
RF & Microwave band pass filtersduplex filters / RF &
Microwave band pass filterswhich KPI affects UL
throughputIntegrityIntegrityWhich Layer 2 Protocol Work on User
plane.MACMACwhich Modulation scheme is more sensitive to
Interference.64 QAM64 QAM
RAN Dump_Q ASUBRAN_QuestionAnswerANTENNAWhich polarization is
used in antenna transmission.Linearly PolarizedBATTERYWhich battery
is good in fluctuating AC GridCyclicEGPRSWhat modulation offers the
highest speed for EGPRS ?8 PSKEGPRSMain Difference between GPRS and
EGPRSGPRS_GMSK And EDGE_ 8psk, Capacity is Double in
EGPRS,EVODifference Between HD BSC and EVO 8100?IP Supported/ BSC
that is RNC PreparedEVOWhat is EVO 8100 multimodeEvoC 8100/Multi
will be GA at the same time as EvoC 8200/RNCEVOwhat is Evo
controller multi node? A node sharing its resources for GSM &
WCDMA TrafficEVOEVO controller 8200 W12 CapacityTwice
Capacity20Gbps Iub throughputHW prepared for 50Gbps 6000 RBS/20000
Cells, 8* 10 GE Ports, 8 Ports STM-1
EVOBenifit of EVOC8200 BSC when compared to EVOC8100/HD BSC? 1)
Multi Standard Controller2)Optimized for all IP Network3) Highest
Capacity with smallest footprintEVOWhat is the difference in
traffic carried by Evoc8100/BSC & Evoc8200/BSC? -Twice
Capacity------> 4095 Trx / 8092 TrxEVOEVO controller supports
which of the following? - 5 options given, select
3,EPB,CMXB,SCXB,EVOET,AAP,CAX, PFM ( AXE & APZ not
supported)EVOfunctionas of EVO RAN?Its a RAN that the node must
supports multiple radio access technologies as per 3GPPGSM What
type of traffic is managed by logical A interface ?BSC to Core
Network Voice Traffic.GSM What are 2 procedures that characterize
idle mode Mobility ?Location area update and Cell Reselection.GSM
What does VAMOS provideCapability to achieve upto 32 speech
channels per TRXGSM Each timeslot on TDMA frame is a physical
channel.How many physical channels per GSM carrier frequency?8 time
slots/physical channels per frequencyGSM What are the 2 limiting
factors on capacity of a GSM cellNumber of installed TRX andNumber
of available frequenciesGSM which two interface are connected to
BSC node?Gb and A interfaceGSM Characteristics of Abis for VAMOS
and Edge Evolution?(Choose 2)--Edge timeslot/flexi FR and HR/flexi
Abis/Packet Abis--- Need to Confirm1. Packet Abis 2. Edge enabled
TRXGSMwhat is GSM OMT tool doesGSM site Online monitoring
toolGSMWhat are the advantages of AMR?reduced interference/
increase capacityGSMWhat is AMRAdaptive multirate,Because the codec
rate is adapted according to the radio link qualityThe channel mode
[AMR FR/AMR HR] is also adapted dynamically Andthere are 8 speech
rates [Instead of 1 fixed rate in Speech Versions 1&2]GSMWhat
is frequency Reuse? Frequency reuse is a technique of reusing
frequencies and channels within a communications system to improve
capacity and spectral efficiency And reduce Intercerence.IBS What
are the 2 main drivers of an In-building solutions? Choose 21)
Dedicated in-building systems helps to offload macro network 2)
Majority of mobile broadband traffic is located within buildingsLTE
What air interface access technology is used in uplink
LTE?SC-FDMALTE How does the UE estimate the radio quality of an LTE
cell ?By measuring the reference signalLTE How can an existing
GSM/WCDMA operator offer voice services when LTE is introduced ?
Choose 21) LTE is packet switched network which means that voice
can be carried through VoIP 2) The legacy GSM/WCDMA systems can be
used to carry the voice by a fall back procedure.LTE What is the
definition of a connected user in LTEA user that has RRC
connectionLTE What are 2 aspects of Automatic Neighbor Relation
(ANR) as per Ericsson implementation ?choose 21) ANR is to add
neighbors based on UE measurements for optimization 2) Initial
neighbor plan requiredLTE Which are the 2 logical transport
interfaces for an LTE systemS1 & X2LTEWhat is the importance of
time and phase synchronization in LTE?ICI reduction , dopler freq
shift correction // Time-GPS,Phase-NTP LTEDiff between H-PCRF &
L-PCRFhome - visitorLTEWhich Factors Defines Cell peak LTE
Thruput.RB & radio condition, modulation,MIMO & BWLTEwhich
board in EnodeB is for processing radio Resource management
function in LTE?DULLTEDimension of Resource Block in time anf freq
domain?0.5ms & 180KhzLTEwhat is the radio performance benefit
of AIR? ~1dB Better in UL and ~1dB better in DLLTEwhat is spectrum
refarming? Separating a chunk of frequency from existing
frequencies for LTELTEWhich release of 3GPP does LTE come under?
Release 8LTEWhat are the benfits of multi Antenna in LTE? - higher
data rates & improves coverageLTERadio Frame in LTE?
10ms10msMIMOWHAT IS THE IMPACTS OF 2X2 mimo TRASMISSION like that.3
to 5dB downlink link budget due to SINR improvement hance improve
the coverage & throughputMSMMEricsson mSMM?The maximum numbers
of carriers for GSM in MSMM in (R)RUS02 and RRUS12 is
sevenNMSBenefits of NMSOpenness, adaptibility, expandability,
precise, practicability & flexibilityOSS How does OSS save
OPEXBy the introduction of Self Organizing Networks functionality
within the OSS portfolioRAN What are NAS messages ?Messages between
UE and Core NetworkRAN What is the benefit of an all IP RAN in a
multi-RAN solutionReduced deployment costs and savings on OPEXRAN
What is a HetNet?(Choose 2) -Its a network topology of different
radio access technologies co-existing together with small cells
embedded in larger cell coverage area- network topology where small
cells are used to offload macro cellsEVO What is an Evo RANIts a
RAN that the node must supports multiple radio access technologies
as per 3GPP,of the one network vision, in which mobile broadband
and premium voice services will be delivered seamlessly over a
simplified, efficient RAN that flexibly combines GSM, WCDMA/HSPA
and LTE coverage with IP-based transport. Under the Evo RAN
umbrella, we are developing new radio network solutions and
approaches that will enable operators to optimize their use of GSM,
WCDMA and LTE resources at all stages of market development whether
as stand-alone networks or as multi-standard coverage solutions.
These include core network reuse, multi-standard RAN nodes and site
solutions, transmission networks and powerful tools that let
operators manage more with less effort. Lower cost of operation
manage more with less effort reduce cost of energy reduce cost of
transmission
Secure Quality of Service provided to operators enduserEasy
support of fair usage policesPerformance monitoring of multi vendor
and multi technologyService management monitoring
Simplify network architecture Common IP transportLogical
separate networks but one physical infrastructureEVO RAN together
with RBS 6000 enable power saving functionality, for instance Time
slot power savings, PSU power savings and Dynamic RU shut down
where we foresee possible power savings 20-30% on radio network
level.EVO What is an Evo RAN transportone common RAN transport,
Optimize the networks for new subscriber growth
Increase Mobile Backhaul capacity
Reduce cost per bit of transporting data traffic
Lower OPEX & CAPEX with Ethernet
RBS What is Ericsson AIR solutionA single unit combing antenna
with the active radio part to simplify installation process in
difficult site locations.RAN which KPI is affected due to
congestion in network?AccesibilityRAN which mode shows reliable
data transfer to the target?-- Aknowledge modeRAN41. Difference
between Link budget of WCDMA and LTE? A. Antenna GainB. UL
SensitivityC. Penetration LossD. Radio wave propagation - Think UL
sensitivity, due to soft HO gain, not sureB. UL Sensitivity - Think
UL sensitivity, due to soft HO gain, not sureD. Radio wave
propagation RAN Difference between Link budget of WCDMA and LTE?UL
SensitivityRANWhich Device is Used to combine Different 3GPP
Frequency Bands? Diplexer RAN Electrical Tilt increased which 2 KPI
will be affected ?-- Retainability/AccesibilityRAN After
Optimisation Uplink throughput increases which KPI affected
?--IntegrityRANWhich Layer 2 Protocol Work on User planeMACRANwhich
Modulation scheme is more sensitive to Interference64 QAMRAN3
Characterstics of Radio KPIAccessibility,Availablily& Mobility
------- Delay,packet loss,RANRAN Syncronisation Methods? SoIP, PTP,
Synchonous Ethernet, radio nw freq sync via backhaul n/w-MSMM(Multi
standard Multi Mode)PTP, NTP , GPSRANMulti antenna Advantages
?Choose 2. (beam forming, spatial diversity, Tx & Rx div or
Improve coverage,redundency)beam forming, spatial diversity, /
Improve coverage,redundencyRANAdvantages of IP RANOPEXRANBSC
Functionalitiesradio network management (such as radio frequency
control),BTS handover management and call setup, allowing the MSC
to handle critical tasks, such as traffic balancing and database
management.RANBSC & RNC FunctionalitiesHandling Radio Resource
management & RBS control, Mobility managementRANDescribe the
Site Design Procedure in Order ? Or What is the order of Network
Roll out?Businees meeting-Planning-Integration-Initial
Tuning-Launch-OptimizationRANWhich is the stage after integration
and before launch? Initial TuningRANWhat are site Survey's Done for
process of selection of a suitable candidate during new site roll
outRANWhat is the process of selection of a suitable candidate
during new site roll out? (same question in some diff words) - Site
Survey Ans-Servey(Site servey ) one cordinateRANWhich 2 Techniques
make most of the Spectrum UtilisationModulation/MIMORANWhich Layer
is responsible for Modulation and Radio Measurements? Physical
LayerRANwhich protocol between two RNCRNSAPRANWhat is HWACHW
Activation Codes for CE UL and CE DL / Hardware Activation Codes
for TRXRANwhat is GX interfacePDN GW to PCRF (Policy Control and
Charging Rules Function) / on-line policy interface between the
GGSN and the charging rules function (CRF)RANwhich KPI affects UL
throughputIntegrityRANWhich KPI can be improved by optimizing
Neighbour Relations? RetainabilityRetainabilityRANFrequency
synchronizationOssiclatorRANUse of time and phase synchronisation
in RBS?UE sync / Time-GPS,Phase-NTP RANsynchronization is more
sensitive by which factorBERRANReasons for calculating Link
Budget.? Coverage, Cell RadiusRANWhat Are the main Difference betwn
Quality of service classesTraffic Quality RANWhat is Cell
Breathing? Variation in coverage of a cell due to changes in number
of usersRANWhat is the basic difference between UE Category?
Support Modulation & Max Transport FormatRANwhat is Radio
Resource management?Radio Resource Management (RRM) is responsible
for optimal utilisation of the air interface resources.Target for
RRM is to ensure the RAN offers: The planned coverage for each
targeted service High capacity i.e. low blocking (new calls,
handovers) The required Quality of Service (QoS) Optimize the use
of available capacity (priorities)RANError Detection in Air
interface is done by?CRCRANwhat is one transport Pipe? One common
pipe for GSM, WCDMA,& LTERANWhat is the procedure for gaining
access to system called? Random AccessRANIdentify two Propagation
models among the the options given? Okumura- Hata &
Cost231RANWhat are functionalities of CQI (Choose 2)? Reported by
UE to the node B & Used by scheduler for Radio Resource
schedulingRANWhat kind of data can be carried by physical channels?
Speech, Data & SignallingRANWhich 2 areas an operator can
benefit using Ericsson Site Controller & Ericsson Remote Site
controller?A. Efficient backhaul planningB. Energy managementC.
Improved Cell capacityD. Site securityNot sureB. Energy
managementD. Site securityRANWhat is true related to dB?a. dBm is
relative to 1mWb. dB is unitlessc. dBi is directional gain of
antennad. 3dB gain means 4 time increase in valueANS - A,B,Ca. dBm
is relative to 1mWb. dB is unitlessc. dBi is directional gain of
antennaRANThe factors that affect the IP network? (Something like
that) (Choose 3) - Delay, Delay Variation & Packet LossRANUE is
in Idle state but not able to make call.. Effected KPI?
A.Accessbility B. Retainability C. Availability D.
IntergrityAccessbilityRAN99. Layer2 Control Plane protocols -a. RRC
b.RLC c.PDCP d.MACRLC and MAC ( might be MAC is the right Answer
)RANUE is connected in cs network, but cannot make call.Effected
KPI?AccessbilityRBSWhat is a Multi Standard Radio?(Choose 2) -MSR
is a hardware unit capable of sharing its transmitter between
different radio access technologies and MSR is a common 3GPP
specification for GSM, WCDMA & LTERBS What parameter is to be
considered while dimensioning battery backup capacity for an RBS1)
The power consumption of the RBS at maximum radio power
outputRBSWhy frequency synchronisation is used in RBS?Minimize
disturbance on air interface to secure handover between RBSs,Both
FDD and TDD based Radio Technologies require frequency
synchronization.RBSwhich unit is connected to handle, sw,rr
management in rbs 2000?DUX - CPURNCRNC 3820 is better than RNC 3810
why?RNC 3820RBSWhich Unit in RBS600 is responsible for IP packet
routing? TCURBS Which 3 technologies are supported by RBS 6000
series?(Choose 3) LTE/DVB-T/CDMA/WiFi/WiMax.LTE, CDMA ,Wimax &
WifiRBS Baseband Unit in RBS 6000?-- DU/DXU/RU/?DURBSVoltage of RU
in RBS 6000 ? -48 V DC / if AC then 115 / 230 v AcRBSThe HW unit
that is used as interface from RBS6000 and the transport ? TCU / DU
(Digital Unit)RBSUse of TIU in RBS6000STM1 x DUW / TIU traffic
routing and synchronization configurationRBSIuB Connection Unit in
RBS60001.DUL 2.DUG 3.DUW 4.TIUDUWRBSWhat is Ericsson Solution to
Minimize Footprint? Choose 2 RBS 6102 with integrated pwr &
battery backup, RBS 6101 with pwr with Battery base
unit(BBU)RBSWhat are the advantages of RBS 6601?Very small Indoor
Main unit which can inserted in existing Macro RBS itself,AIR can
be installed.RBS What is the main benefit of upgrading an RBS3000
with DUWAn increase in the physical Channel Elements (CE)RBS what
is the use of OBIf unit in RBS 3000?Interface connecting to the
Baseband & RF Unit ( interface between Main & Rru
Unit)RBSwhich board is used in RBS3000Optical Radio Unit Interface
BoardRNCwhat is Board Handling User Plane Traffic in RNC
3820?SPBRNCRNC3820 advantage / Difference for RNC3810Same capacity
with less footprintRBSMaximum Carrier support by RRUS 114RBSwhat
does TCU brings to RBS ? Transport connection unit, to other RBSs,
to support sync tech, Ericsson IP RAN reference solutionEricsson IP
RAN reference solution // IP Packets///////Transport connection
unit, to other RBSs, to support sync techRBSTCU Supports which
FunctionalitiesTransfer data of different RAN over IPRBSTCU/SIU
Function's ?Transport connection unit, to other RBSs, to support
sync tech, Ericsson IP RAN reference solutionEricsson IP RAN
reference solutionRBSWhat are the product included in IPRAN
reference Solution? Smart Edge and TCURBSWhat are the
characterestics of TCU? Choose twoA. Queue in Queue (C-VLAN and
S-VLAN)B. IP over TDMC. TDM over IPD. Traffic policingB,C not sure
IP over TDMTraffic policingRBSHow is frequency synchronization
achieved in TCU? (something like that)A. Hold over time in TCU is
greater than hold over time in DUB. TCU has higher frequency
precisionC. Simplifies the synchronization recovery procedureD.
Possiblity to control different synchronization methodsHold over
time in TCU is greater than hold over time in DU or Possiblity to
control different synchronization methodsRBSWhat is the function of
TIU? -The Transport Interface Unit (TIU) is an optional unit to
extend the number of E1/T1 port up to 16. The TIU provides E1/T1
cross-connection to the STM-1 interface on the DUW TMA What is the
main purpose of a TMATo improve the uplink coverage in a
locationVAMOSWhat is the benefit of VAMOS? It doubles GSM
Capacitywcdma What are 2 functionalities of RNC node ?RBS control,
Mobility management & Handling Radio Resource management wcdma
What are 2 elements that limit throughput according to Shannon's
Theorem ?Signal to Noise Ratio (SNR) and Bandwidthwcdma What are 2
reasons that trigger compressed mode ?Weak 3G coverage (IRAT) and
Pilot pollutionwcdma What information can be obtained from
CPICHScrambling codewcdma What are 2 purposes of power control in
WCDMA systems? Choose 2Managing power capacity and Reducing
interferencewcdma What is a softer handoverThe UE connected to 2
cells in the same RBSwcdma What is Ericsson definition of a Channel
ElementCE is a measure of board capacity and radio bearer (RB)
capacity costwcdma Protocol on Iu interface? RANAPwcdmaWhat Iur
Link Used For?SHO B/w RNCswcdma Three types of Handover in WCDMA
?-- Soft/Softer/IRATwcdmaSF used in HS-PDSCHHS-PDSCH SF
16wcdmaProtocol on IurRNSAPwcdmaWhat is the role of Primary
Scrambling code in WCDMA? To identify cells in DL and Users in
ULwcdmaQueuing is happening in UMTS N/w. User will be effected in
which ways? (Choose 2)Throughput and bufferingwcdma Effect of
Smartphone in UMTS?1. Control increased usage 2. Sharing of more
cells at same time 3. Usage of resources (Have 1 more option, Need
to select one)Control increased usage ( high Signaling
load)wcdmawhat is IU Flex ?multiple MSC's to SGSN'sEVOEvo RAN
ControllersGSM HD BSCBSC Highest Capacity per Volume on the Market
, Scalable and Expandable Up to 2048 TRXs and up to 12000 Erlang
(up to 4095 in BSS 08B)
WCDMA RNC 3820RNC3820 can be built out to 20 Gbps and by
introducing RNC3820 units in RNC3810 the capacity of RNC3810 is
increased,We have best in class service performance, and are
providing increased capacity density with each release while still
being backwards compatible.Both BSC and RNC support IP
interfaces
Evo Controller 8000Combined GSM and WCMDA controller
RANWHAT IS THE DIFFRENCE BETWEEN IP RAN AND TDM RAN??EVOWHAT IS
THE ADVANTAGES OF BSC 8200 OVER 8100?Twice the capacityRBSWHAT IS
THE MAIN FEATURE OF RBS 6601,61026601-----> can support AIR,
6102----> Indoor RBS with integrated pwr backupRBSHOW MANY MAX
TRX CAN BE CONFIGURED IN BSC 2000?1024--2048--4096--6144BATTERYIF
THERE IS AC FLUCTUATION, WHICH BATTERY SHOULD BE USED?CAR
BATTERY,ADM BATTERY,CYCLIC BATTERY,LOW DISHCRAGING BATTERYBATTERYIF
YOU WANT TO REPLACE GENERATOR ENABLED BSC WITH (BATTERY BACK UP AND
GENERATOR ENABLED BSC) WHAT CONDITION SHOULD BE MET?CYCLIC BATTERY,
BATTERY SHOULD BE KEPT AT HIGH TEMPERATURE, GENERATOR SHOULD BE OF
LARGE SCLAE, SOME RECTIFIER USED****OSSone question is from ENIQ
what output u'll get from ENIQ(CHOOSE TWO)CELL LEVEL,MONITOR
COUNTER DATALTELTE PEAK THROUGHPUT DEPENDS ON(2)TDD,FDD
,FREQUENCY,BANDWIDTH,Modulationwcdmawhat is radio resource building
block??GSMwhat is difference between egprs and gprsmodulation
schemeRANhow to reduce operational cost ran power,RANhow to
increase or reduce the coverage areabeam forming, electrical
tiltTRAN.het net question with diff. options?RANwhat is mSMM
(MULTIPLE STANDARD MIXED MODE)Radio N/W freq. sync via backhaul N/W
( multi standard Multi mode)LTEREAD MIMO INSTALLATION
PROCEDURE?RANWHICH BASEBAND UNIT FOR RADIO RESOURCE MGMTDigital
Unit (DL)RANIN WHICH UNIT SOFTWARE UPGRADE,CPU,CDU,.RBSHOW MANY MAX
TRX CAN BE CONFIGURED IN EVO8200?8192RANCDU ( Combiner Unit)2 Trx
connected to 2 Antenna, / Simutaneously Tx & Rx on each
AntennaBATTERYDiesel------> Diesel+Battery
Backup----------->Diesel For long time, Battery should be
capable for high Temp.RBSWhere SW installed in RBS 2000 ?DXULTEWhy
Freq. sysnchronisation req. in LTE?RBSWhich unit is available in
RBS 6000DULRANHow to control coverage of site remotelyRET (Elect.
Tilt)wcdmaJump Regulator used whereUL Outer loop Power
controlLTEWhich Modulation scheme used in DL in LTEOFDMAwcdmaRANAP
protocol used for which interfaceIu interfaceRBSTwo functionality
of TCU 02Option - 1) TDM Mux2) TDM Routing3) IP SwitchingRBSDXU
FuntionDXU provides Freq. reference Signal & timining Signal
for Circuit within RBSGSMWhich protocols used on Abis Interface1)
LAPD Multilexing 2) LAPD..3) LAPD.
Select all LAPD started optionRANcell Reselection used in ?1)
GSM2) WCDMA3) LTE4) GeneralRANIf Iu Link has congetion & N/w
has capacity then which KPI is affected.1) Throughtput2) PS call
should be terminated3) Problem on CS Call4)wcdmaGBR of steaming
RAB112 KbpsEVOBoard in EVO controller1) TRH2) EPB3) DXU4)
APGEPBGSMSGSN lies in which layer?
1) Application Layer 2) Connectivity Layer
3) Control Layer4) .Connectivity layerRNCFacts about
RNC3810?
1) configuration is largest RNC Cabinet configuration 2) Built
with full redendency3) Can't handle time varying traffic mix
between CS & PS4) Change in traffic pattern are handle
automatically?
Snap
What information can be obtained from CPICH
AA & CScrambling codeA & DB & DA & DAA Not sure
& DBBAs per Me its -----> LTE , WiFi & CDMA
Model QA RAN
WBL Q & Adwdw
truefalsetrueHow does IP save money?With IP we build one network
to serve the transport needs for all standards of radio.
(Correct)With IP we only save money with LTEWith IP we replace all
legacy network equipment with cheapr IP based equipmentHow does IP
enable mobile broadband?IP provides scale and high speed
performance (Correct)IP reaches new types of terminalsIP separates
different types of network traffic
You need Ethernet to enable IPTrue, without Ethernet access to
the cell site, IP provides no benefitFalse, IP can be deployed even
before Ethernet access is available (Correct)
Sheet11. select the correct statement for the unit of power
(dBi)Antenna gain is expressed in dBidBi is a dimensionless unitdBm
= 1mW2) What is scrambling code and its use?Scrambling code :
Cells/UE(DL/UE).Channelization code: user/services3) Radio wave
propagation is based on which theorem/principle?Maxewell4) TIU is
used for?The Transport Interface unit is a plug in unit which
expends the number of E1/T1 to 16.The TIU provided the E1/T1 cross
section to the STM-1 interface.
5) Function of BSC & RNC:Mobility and radio resource
management
6) Modulation technique used in in LTE?DL: OFDMA: Less
ISIUL:SC-FDMA Low PAPR7) which KPI is effected if MS is in idle
mode and latched to a networkbut you are not able to make
callsAccessibility8) Spreading factor in HS-DSCH16
9) Relation b/w capacity of 8100 and 8200 EVO Controller.8200
supports twice as many TRX as 8100.
10) VAMOS needs which feature on Abis?Packet AbisEdge enabled
TRXsPGW(ABIS OPT/ABISIP, PGW)
11) VAMOS supports calls(TS/Frame)Apr-32
12 2X2 MIMO requires:Dual antenna and software functionality
13RANAP is used on Iuinterface
14 Baseband is a function of ____ in RBS6000 (DU)
15 Which link are used in LTEa. S1c. X2
16 What is the order of network roll out:a. Buisness Plan>
Design >insatallation> integration > initial tunning>
optimization.
17. If a negbiour optimization is done which KPI will improve:a.
Availabilityb. Retainabilityc. Integrityd. Accesability .
18) softer hw(bw 2 sectors of same RBS)19) Spreading factor of
HS-PDCH (16) Spreading factor of CPICH (256) Spreading factor of
HARQ (256).20)if throughput improves, which KPI is impacted
(integrity)21 3 sectors, excessive downtilt, which KPI is impacted
(accessibility)22 DL power control advantages (coverage inc)23. UL
power ctrl advantages (co channel interference)24) EGPRS (upto
384kbps), GPRS (upto 59kbps)25) most sensitive modulation
(64QAM).26) RRU benefits (power less, main remote config).27)
Shanon's theorem (capacity depends on BW and SNR).28) Higher order
modulation benefit (inc. data rate)29) 2G n 3G active in NW, LTE
introduced how will call flow in LTE? (VOIP, on LTE channels).30)
how to increase spectrum efficiency in LTE? (HOM & MIMO)31) 2
diff. incoming freq, how to combine them (Hybrid combiner)32) NAS
is b/w (Ue and core)33) TTI in LTE (1ms)34) Modulation in EDGE
(8PSK)35) which HW is present in eNB? (DUL)36) RBS 2000 software
loaded in (DXU)37) Cell breathing (too many users enter a cell,
NodeB needs to distribute powerto all, cell shrinks its boundary as
power is constraint)38)User plane board in RNC 3820 (SPB) ctrl
plane board in 3820 (GPB)39)i/p power required for RBS 6000?
(-48V)40) LTE=3GPP Rel8 ,LTE Advance=3GPP Rel 1041) TCU02 along
with DU provides >> NTP and IP over TDM42) Physical channel
on GSM on 1 frame = 8TS43) Link budget : cell coverage, capacity44)
Idle mode in GSM: Location update, Cell reselection
45)In LTE, Ue connected mode (Idle mode, PDP connected, Session
connected, -110 db) ans: PDP connected.
46) Dual Band TX frequncy combiner: Diplexer47) BSC Interfaces:
Gb, A48)Difference between TDD and FDD:The downside is that
successful implementation of TDD needs a very precise timing and
synchronization system at both the transmitter and receiver to make
sure time slots dont overlap or otherwise interfere with one
another.49)What Iur Link Used For.To have communication between
RNC.50)How Syncronisation is Achieved over IP ML-PPP(IP), 1588.v2,
GPS(TDM)51)Describe the Site Design Procedure in Order.What are
site Survey's Done for.
site survey, site comissioning and site integration52) What is
CE?Measure of board Capacity and RB Capacity Cost.53) Noise Figure
2 both in GSM and WCMDA.
54)ANR : based on Ue measurement, handover definition.55) SON :
OPEX saving56) Functionality in OSS that saves cost for LTE: Auto
Integration57) Platform of OSS: TMOS,ETOM,TAM58) How does OSS-RC
reduce cost of network rollout:a. RBS Provisioning correct.b. RAN
Loadc. Capacity and Coverage optimization59) RBS600 supports: GSM,
WCDMA, LTE and WIFI60) TCU-02/SIU-02Transport sharing for RBS 6000
The TCU 02 (Transport Connectivity Unit) is a component in the RBS
6000 product family and has been designed primarily to support
Multi Standard RBS with advanced transport functionality.The TCU 02
has the same form-factor as a digital unit and shall be placed in
the radio shelf of the RBS. It is available in product packages for
all RBS 6000 cabinets. In addition to the transport functionality
of the digital unit the TCU adds the following capabilities to the
RBS: 8 Gigabit Ethernet ports for aggregation of traffic from
multiple digital units 8 E1/T1 ports for connecting GSM RBS cards
(DUG) IP over the TDM (E1/T1) backhaul (as a solution during
migration) Advanced shaping functionality for up to eight queues,
with large buffer depth, supporting highest LTE capacity. Can act
as an IP router and/or as an Ethernet bridge suiting all backhaul
deployment scenarios. Supports NTP, 1588v2 and synchronous Ethernet
for RAN synchronization. Has a local oscillator with 12 months
holdover time supporting synchronization over virtually any
backhaul technology, including satellite. Supports native IP
transmission (Abis IP) for Ericsson GSM RBSs making a true All IP
multi standard RBS. Provides Ethernet LAN/WAN connectivity for
local site equipment Transport sharing for RBS 2000/3000 The SIU 02
(Site Integration Unit) is the 19 inch sibling to the TCU 02. It is
designed to fit into the transmission space of the RBS 2000 or
3000, or alternatively in any 19 inch standard indoor rack. It
supports the same features as the TCU 02 but has the following
hardware differences.16 E1/T1 ports allowing for more GSM RBS to be
connected to the SIU Inbuilt fan unit needed for forced
cooling.61)The NSB Silver (NSB FT series) battery is for customers
in a stable power grid with few outages over a longer period of
time. Focus is on a long lifetime therefore minimizing site visits,
replacement and costs.The Premium battery (OPzV) is a more
expensive battery designed to withstand frequent outages and in
applications with stable mains and have a long float life. The High
Capacity battery (EON) is developed for a fast recharge therefore
recovering very fast. This is necessary for Lead acid battery to
survive. A standard battery takes about 24 hours to recharge while
High Capacity is capable to recharge within 8 hours. EON is the
choice for unstable grids due to its high charge acceptance, float
life and high capacity. It is also applicable in long float life
conditions, i.e. stable power grid environments.The High Cyclic
battery (NSB Blue) is developed for a fast recharge and therefore
works excellent where mains interruptions are frequent. For markets
with many outages a day or unpredictable power sources like wind,
sun etc this is the battery to use. The Blue battery can unlike any
other lead acid battery run on Partial State of Charge [PSOC]. This
means that the battery will not suffer from deterioration when the
required recharge time is unavailable. This also makes the battery
unparalleled for Hybrid operation.When it comes to batteries in
high-cyclic operation, the battery capacity is not as crucial as
for stand by operation. Batteries in high-cyclic operation shall be
dimensioned by optimizing the charge/discharge window. The best
high-cyclic performance will be reached when the batteries doesnt
have to be fully recharged. Charging of the batteries between
80-100% usually takes up to 50% of the charging time.In hybrid
operation a charge/ discharge window between 60-80% State of
Charge, will be the most energy and cost efficient solution. A more
frequent cycling using a narrow charge/discharge window of the
battery capacity will most likely give a more energy effective
solution than a few more deeper discharge.
11. A site has frequent AC failure. What type of battery will be
suitable:a. High cyclic Battery Correct.b. Deep discharge
batter
14. DG + Battery( Frequent and Controlled Cycling)(NSB
bluse,OPvZ and Enersys Eon)
15. Battery in fluctuating AC fieldHigh cyclic Battery
Correct.12. A DG site is converted to DG+Battery site which of the
following should be done
44. Changes required if the power of DG is increased
61. IP site looses Sync, then what happens (Delay, delay var,
pkt loss)
IP backhaul network needs what param. for sync? (Delay, delay
var, pkt loss)