家庭基站技术挑战和研究现状.pdf

69 EXPERI ENCEANDEXCHANGE2011 4 100876 TN929.5 A 1008-5599201104-0069-052011-03-01 WiMAX802.16e3GPP HSPA LTE3GPP2 EV DO UMB Wi-Fi 50% 70% [1]3G DSLCAPEX OPEX1[2] AP, Access Point3GPP UMTS AP HNBLTE AP HeNBWi-Fi 2.4GHz ISM 170 TEL ECOMENGI NEERI NGTECHNI CSANDSTANDARDI ZATI ON2011 4EXPERI ENCEANDEXCHANGEGSMUMTSLTEWiMAXCDMA 1 DSLLANIP FMC[3]IP 2AP SINRSINRIP , IP 33.1 [4]1232 23.2 3GPP CSGClosed Subscriber GroupUE71 EXPERI ENCEANDEXCHANGE2011 4[5]CSG [6]CSG [7]3 CSG UE UE CSGUE UE UE 3.3 [3]OFDMA 3.4 OAMOperation Administration MaintenanceAP CPE CPE TR-069 CPE ACSAutomatic Configuration ServerCPEAP TR-196[8]3.5 AP 3 IP Iu-bIMS/SIP RAN UMA3GPP RAN IP RAN [9]RAN AP SeGWSecurity GatewayAP RAN Iuh Internet IPSecRANRAN RNCAP UE Uu Uu RRCCSG [9]33.6 AP / [9]UMTS Release 8 HNB IDHNB-ID72 TEL ECOMENGI NEERI NGTECHNI CSANDSTANDARDI ZATI ON2011 4EXPERI ENCEANDEXCHANGEHNB SeGWHNB HNB-GWX.509 HNB HNB_GWIP IETFIPSec 3.7 QoS xDSLQoS QoS3.8 3 UE [10]Yeung Nanda [11] 3.9 3GPP OFDMA 1s 2.510-7[1213]TDD IEEE 1588 IP Precision Timing Protocol over IPGPS 43GPP TS22.011TS22.115TR25.820 TR32.8213GPP Release 8 Release 8 UE UEUE RAN3GPP TSG RAN WG3 HNB GatewayHNB 3GPP CSG CSG OAM TR-069 3GPP Release 9 CN OAMSprint cdma 1x EV DO Verizon AT&TO2 TelefonicaMotorolaSoftbankABI Research 2012 1 3000 3GPP Release 8Release 9 573 EXPERI ENCEANDEXCHANGE2011 4Technical challenges and current research situation of femtocellYE Xuan, ZHANG Xin, CAO Gen, YANG Da-cheng (Beijing University of Posts and Telecommunications, Beijing 100876, China)Abstract As a new technique which aims at improving indoor signal coverage, femtocell have received widespread attention in the industry. In this paper, we frst introduced the concept of femtocell and then analyze the benefts of bringing femtocell into the existing microcell network. After that, we described and analyzed thetechnicalchallengesfacingfemtocell,aswellastheresearchdirectionsoffemtocell.Finally,we described the current standardization and commercialization situation.Keywordsfemtocell; indoor coverage; technical challenge[1] Presentations by ABI Research, Picochip, Airvana, IP Access, Gartner, Telefonica Espana[A]. 2nd Intl. Conf Home Access Points and Femtocells[C]. http://www.avrenevents.com/dallasfemto2007/ purchase_presentations.htm[2] Femto Forum. Regulatory Aspects of Femtocells[S]. May,2008.[3] Chandrasekhar V, Andrews J G, Gatherer A. Femtocell networks: a survey[J]. IEEE Communications Magazine, September 2008: 59-67.[4] 3GPP TR 25.967 v9.0.0. Home Node B Radio Frequency (RF) Requirements (FDD)[S]. 2009.5.[5] 3GPP TS 36.300 v9.6.0. E-UTRA and E-UTRAN: Overal l Description[S]. 2010,12.[6] 3GPP TS 24.285 v9.4.0. Allowed CSG List Management Object: Management Objest[S]. 2010,12.[7] Golaup A, Mustapha M, Patanapongpibul L B. Femtocell Access Control Strategy in UMTS and LTE[J]. IEEE Communications Magazine, September 2009, 117-123.[8] Knisely D N, Yoshizawa T, Favichia F. Standardization of Femtocells in 3GPP[J]. IEEE Communications Magazine, September 2009: 68-75.[9] 3GPP TS 25.467(9.4.0). UTRAN Architecture for 3G Home Node B[S]. December 2010.[10] Ho L T W, Claussen H. Effects of user-deployed, co-channel femtocellson the call drop probability in a residential Scenario[A]. 18th Annual IEEEIntl Symp. Personal, Indoor and Mobile Commun[C], September 2007:1-5.[11] Yeung K L, Nanda S. Channel management in microcell/macrocell cellularradio systems[J]. IEEE Trans Vehic Tech, November 2006: 60112.[12] Picochip. The case for home base stations[A]. White Paper[C]. April2007.[13] Andrews J G, Ghosh A, Muhamed R. Fundamentals of WiMAX[M].Prentice Hall, 2007.3GPP 3G 3GPP 3G 20055201020112KDV8000AMCU1KDV7920141KDV7820)News