Wcdma for umts radio access for third genergation mobile communacations phần 6 doc

... 2 26. 67 192.00 0.29 0.35 cell 4 721 .60 760 .00 0.50 0.12 cell 5 1101 .60 62 9.14 0.74 0.29 cell 6 772 .68 800.00 0 .60 0.27 MEAN 531.04 5 06. 62 0.45 0.39 Basic loading: mobile speed 50 km/h and 3 km/h, ... 84 .6 % 88.9 % 384 kbps 66 .9 % 71.4 % Test mobile speed: Basic loading: mobile —————————————— speed 50 km/h 3 km/h 50 km/h 8 kbps 95.5 % 97.1 % 64 kbps 82.4 % 87.2 % 384 kbp...

Ngày tải lên: 14/08/2014, 12:21

... Mobile Radio Commu- nications, PIMRC’97, Helsinki, Finland, 1–4 September 1997, pp. 42– 46. [5] Universal Mobile Telecommunications System (UMTS) , Requirements for the UMTS Terrestrial Radio Access ... and Mobile Radio Communications, PIMRC’97, Helsinki, Finland, 1–4 September 1997, pp. 66 9 67 2. [2] Nikula, E., Toskala, A., Dahlman, E., Girard, L. and Klein, A., ‘FRAMES...

Ngày tải lên: 14/08/2014, 12:21

... the focus has WCDMA for UMTS, third edition. Edited by Harri Holma and Antti Toskala # 2004 John Wiley & Sons, Ltd ISBN: 0-470-870 96- 6 Index 3GPP, 67 3GPP2, 70 16- QAM 312, 313 access service ... 1,2,3 dB 1,2,3 dB 422 WCDMA for UMTS frame is divided into 15 time slots, each of 2 560 chips, i.e., the time slot duration is 66 6 ms. Figure 13.4 shows the frame structure...

Ngày tải lên: 14/08/2014, 12:21

... 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 mobiles for WCDMA use ... terminals Figure 2.15. Example content download 26 WCDMA for UMTS 4 Background and Standardisation of WCDMA Antti Toskala 4.1 Introduction In the first phase of third generation...

Ngày tải lên: 14/08/2014, 12:21

... 7.5 15 3 6 1–3 kbps 2 56 15 30 12–24 6 12 kbps 128 30 60 42–51 20–24 kbps 64 60 120 90 45 kbps 32 120 240 210 105 kbps 16 240 480 432 215 kbps 8 480 960 912 4 56 kbps 4 960 1920 1872 9 36 kbps 4, ... HSDPA P-CPICH beam S-CPICH beam Node B RNC Received SIRs for beams Phase Reference Reconfiguration Figure 6. 30 Release 6 beamforming enhancement method 144 WCDMA for UMTS...

Ngày tải lên: 14/08/2014, 12:21

... hand, WCDMA requires very linear base station power amplifiers, which is challenging for the implementation. 154 1 56 158 160 162 164 166 168 170 100 150 200 250 300 350 400 450 500 550 60 0 65 0 700 ... presented. Section 8 .6 presents the WCDMA frequency variants and their differences. These frequency variants are needed in the first place to deploy WCDMA in the USA. WC...

Ngày tải lên: 14/08/2014, 12:21

... with a three time slot GPRS mobile, like Nokia 66 00, with a two time slot EDGE mobile, like Nokia 62 20, and with WCDMA bit rates of 128 kbps and 384 kbps, as in Nokia 760 0. EDGE modulation and coding ... context for any application, e.g. for presence. The third optimisation step is to use an existing PDP 0 200 400 60 0 800 1000 GPRS WCDMA RACH WCDMA DCH Milliseconds Accept...

Ngày tải lên: 14/08/2014, 12:21

... DSCH: 3 26 WCDMA for UMTS rate for the connection. For example, with Adaptive Multirate (AMR) speech service and packet data, the DCH capacity reserved is equal to the sum of the highest rate used for ... of HSDPA techniques for the uplink direction is under investigation in 3GPP for inclusion in forthcoming Releases, though the expected gain is not foreseen to 344 WCDMA f...

Ngày tải lên: 14/08/2014, 12:21

... loop Multipath propagation Correlation between transmission antennas 152 154 1 56 158 160 162 164 166 168 170 100 200 300 400 500 60 0 700 800 900 1000 1100 Load [kbps] Maximum path loss [dB] Downlink ... in −24 −22 −20 −18 − 16 −14 −12 −10 −8 I c / l or [dB] −10 −50 510152025 G = I or / N 0 (dB) 3 km/h 50 km/h 120 km/h Figure 12. 16. Effect of mobile speed in the ITU Pede...

Ngày tải lên: 14/08/2014, 12:21