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Cell search,paging and uplink access in CDMA systems Song Pengpeng
Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Acquisition in CDMA2000 ,[object Object],[object Object],[object Object],[object Object]
Acquisition in CDMA2000 ,[object Object]
Acquisition in CDMA2000 ,[object Object],[object Object],“ Handoff between asynchronous and synchronous systems”,  [email_address]  , IEEE VTC2000
Acquisition in CDMA2000 ,[object Object],[object Object],[object Object],“ Handoff between asynchronous and synchronous systems”,  [email_address]  , IEEE VTC2000
Cell search  in WCDMA ,[object Object],[object Object],[object Object],[object Object],[object Object],“ Cell search in WCDMA”, Yi-Pin Wang, Tony Ottosson, IEEE joural on selected areas in communications, Vol18,No8, August 2000 “ Handoff between asynchronous and synchronous systems”,  [email_address]  , IEEE VTC2000
Cell search  in WCDMA ,[object Object],“ cell searching in WCDMA”,Sanat Kamal Bahl, IEEE Potential 2003; 3gpp TS 25.211~214 Unmodulated orthogonal gold code --- Cp Cs*Dj Cell specific Scrambling code
Cell search  in WCDMA ,[object Object],Autocorrelation function over the full PN period Slot synchronization using the matched filter “ Initital cell search procedure in WCDMA---an imporved algorithm for FDD”, mcinteza@yahool.com,IEEE 2003
Cell search  in WCDMA ,[object Object],“ Initital cell search procedure in WCDMA---an imporved algorithm for FDD”, mcinteza@yahool.com,IEEE 2003
Cell search  in WCDMA ,[object Object],[object Object],“ Cell search in WCDMA”, Yi-Pin Wang, Tony Ottosson, IEEE joural on selected areas in communications, Vol18,No8, August 2000 ,[object Object]
Cell search  in WCDMA “ Cell search in WCDMA”, Yi-Pin Wang, Tony Ottosson, IEEE joural on selected areas in communications, Vol18,No8, August 2000 ,[object Object],30 ms 20 ms 10 ms
Cell search  in WCDMA ,[object Object],WCDMA acquisition time in AWGN channel WCDMA acquisition time in fading channel “ Handoff between asynchronous and synchronous systems”,  [email_address]  , IEEE VTC2000 ,[object Object],[object Object]
Cell search  in WCDMA ,[object Object],“ Cell search in WCDMA”, Yi-Pin Wang, Tony Ottosson, IEEE joural on selected areas in communications, Vol18,No8, August 2000
Paging channel in CDMA2000 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],“ The paging channel in cdma2000”,ssarkar@qualcomm.com, IEEE 2000 “ Phone standby time in cdma2000:the quick paging channel in soft handoff”,__,IEEE  transactions on vehicular technology,vol 50,No5,Sept 2001. “ soft handoff on the quick paging channel”,__,Globalcomm’99 “ Cdma2000:battery life improvement techniques”,__,IEEE 2000
Paging channel in WCDMA ,[object Object],[object Object],[object Object],3GPP physical layer specification 25.211 Structure of Paging Indicator Channel (PICH)
Enhanced random access in CDMA2000 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],“ Enhanced Random Access and Reservation Scheme in CDMA2000”, kamran etemad,  IEEE Personal Communications. April 2001 3GPP2 C.S00002-A,”physical layer  standard for cdma2000 spread spectrum systems”, Release A
Enhanced random access in CDMA2000 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],“ Enhanced Random Access and Reservation Scheme in CDMA2000”, kamran etemad,  IEEE Personal Communications. April 2001
Enhanced random access in CDMA2000 ,[object Object],“ Enhanced Random Access and Reservation Scheme in CDMA2000”, kamran etemad,  IEEE Personal Communications. April 2001
Enhanced random access in CDMA2000 ,[object Object],A reservation access probe followed by data transmission on RCCCH “ Enhanced Random Access and Reservation Scheme in CDMA2000”, kamran etemad,  IEEE Personal Communications. April 2001
Enhanced random access in CDMA2000 ,[object Object],Monitors the Ec/Io RA mode for long data burst; BA or PCA mode for short signaling and MAC messages Check the busy/idle status or inhibit flag Randomly selects a ERACH “ Enhanced Random Access and Reservation Scheme in CDMA2000”, kamran etemad,  IEEE Personal Communications. April 2001
Random access scheme in WCDMA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[*] Esmailzadeh.R,Gustafsson,M. “A novel random access method for CDMA systems”,ICUPC’97,San Diego,CA,USA [**]ARIB,”specification of Air Interface for the 3G Mobile System”,ARIB report of IMT-2000 Radio Transmission  Technology Special Group,Vol 3 Frank.G,Weber G,”random access scheme for the ETSI/UTRA WCDMA”,IEEE VTC99
Random access scheme in WCDMA ,[object Object],[object Object],[object Object],[object Object],Frank.G,Weber G,”random access scheme for the ETSI/UTRA WCDMA”,IEEE VTC99 3GPP physical layer specification TS 25.11~214
Random access scheme in WCDMA ,[object Object],[object Object],“ an overview of Common Packet Channel(CPCH), an opitmum wireless Internet Mechanism in  3GPP WCDMA system and comparison of various UMTS Non Real Time data deployment opitons”, Dr. Kourosh Parsa,
Random access scheme in WCDMA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],“ an overview of Common Packet Channel(CPCH), an opitmum wireless Internet Mechanism in  3GPP WCDMA system and comparison of various UMTS Non Real Time data deployment opitons”, Dr. Kourosh Parsa, “ Performance of a common channel packet access in WCDMA”,Farooq Khan, Christiaan Roobol and Johan Larsson, IEEE 1998
Thank you!

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Cell Search,Paging And Uplink Access In Cdma Systems

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