Wcdma for umts radio access for third genergation mobile communacations phần 9 potx

... performance is obtaine d for high mobile speeds, while close to the base station, low mobile speeds perform better. This behaviour can be explained by the fact that for high mobile speeds interleaving ... dBm 2.1 dB Route B 1 m separation 7 .90 dBm 4. 59 dBm 3.3 dB no separation 7 .90 dBm 4.86 dBm 3.1 dB Route C 1 m separation 5.63 dBm 2.54 dBm 3.1 dB 358 WCDMA for UMTS baseb...

Ngày tải lên: 14/08/2014, 12:21

... kbps 64 60 120 90 45 kbps 32 120 240 210 105 kbps 16 240 480 432 215 kbps 8 480 96 0 91 2 456 kbps 4 96 0 192 0 1872 93 6 kbps 4, with 3 parallel codes 2880 5760 5616 2.8 Mbps 122 WCDMA for UMTS encoding ... Lengths for Forward Link of DS-CDMA Mobile , Electronics Letters, 199 7, Vol. 33, No. 1, pp. 27–28. [8] 3GPP Technical Specification 25.101, UE Radio Transmission and Recep...

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... Yes Yes Yes Soft handover For associated DCH For associated DCH Yes No Inclusion in specification Release 5 Release 99 Release 99 Release 99 High-speed Downlink Packet Access 315 reduced with ... effective throughput for a fixed data rate is also Figure 11. 29. Release 99 and Enhanced Uplink retransmission control 340 WCDMA for UMTS serving RNC sends a synchronised radio link r...

Ngày tải lên: 14/08/2014, 12:21

... Solutions for UMTS High Bit Rate Services’, Proceedings of PIMRC 97 , Helsinki, Finland, September 199 7, pp. 22–26. [9] Ojanpera ¨ , T. and Prasad, R., Wideband CDMA for Third Generation Mobile Communications, Artech ... IEEE MILCOM 94 , Fort Monmouth, N. J. USA, Oct. 2–5, 199 4, pp. 91 1 91 7. [71] Cho, Bong Youl and Lee, Jae Hong, ‘Nonlinear parallel interference cancellation w...

Ngày tải lên: 14/08/2014, 12:21

... from a few kB UMTS Services and Applications 25 ETSI decided between the technologies in January 199 8 [8], selecting WCDMA as the standard for the UTRA (UMTS Terrestrial Radio Access) air interface ... of the WCDMA waveform against interference is clearly compromised. The performance of high bit rates with WCDMA is presented in Section 12.4. Both base stations as well as mobile...

Ngày tải lên: 14/08/2014, 12:21

... Mobile Radio Commu- nications, PIMRC 97 , Helsinki, Finland, 1–4 September 199 7, pp. 42–46. [5] Universal Mobile Telecommunications System (UMTS) , Requirements for the UMTS Terrestrial Radio Access ... 3.0.0, December 199 7. [8] ETSI Press Release, SMG Tdoc 40 /98 , ‘Agreement Reached on Radio Interface for Third Generation Mobile System, UMTS , Paris, France, January...

Ngày tải lên: 14/08/2014, 12:21

... [dB], multicell 0.0 s Indoor loss [dB] 0.0 t Allowed propagation loss for cell range [dB] 1 39. 9 u ¼ q À r þ s À t 190 WCDMA for UMTS Active Set Update The purpose of the active set update procedure ... message can be used. This is illustrated in Figure 7. 19. Figure 7. 19. Measurement control procedures in different UE states 174 WCDMA for UMTS For the micro cell layer we...

Ngày tải lên: 14/08/2014, 12:21

... WCDMA Uplink’, Proceedings of VTC 99 , Houston, Texas, May 199 9, pp. 1266– 1270. [2] Ojanpera ¨ , T. and Prasad, R., Wideband CDMA for Third Generation Mobile Communications, Artech House, 199 8. [3] ... 199 8. [9] Wacker, A., Laiho-Steffens, J., Sipila ¨ , K. and Ja ¨ sberg, M., ‘Static Simulator for Studying WCDMA Radio Network Planning Issues’, Proceedings of VTC 99 , Houst...

Ngày tải lên: 14/08/2014, 12:21

... differences Figure 10.28. Packet scheduling in soft handover 290 WCDMA for UMTS context also for WAP. In this case, only an RRC state change is required before establishing TCP connection and downloading ... context for any application, e.g. for presence. The third optimisation step is to use an existing PDP 0 200 400 600 800 1000 GPRS WCDMA RACH WCDMA DCH Milliseconds Acce...

Ngày tải lên: 14/08/2014, 12:21