CDMA and cdma2000 for 3G Mobile Networks 5 pdf

... possible. Chapter 1 16 19 45 AB MHz Downlink - from Base Station to Mobiles Uplink - from Mobiles to Base Station 1930 1 950 19 65 1970 19 75 1990 CDEF 18 65 AB MHz 1 850 1870 18 85 1890 18 95 1910 CDEF Figure ... TDMA for Digital European Cordless Telephone [DECT] and wideband CDMA [W -CDMA] ). The standards developed for PCS in North America appear in References [ 15] –[19]....

Ngày tải lên: 23/12/2013, 01:17

... Variations 45 Coherence Bandwidth and Power Delay Profiles 46 Simulation Model of a Mobile Radio Channel 49 Summary 52 References 52 Chapter 3 Principles of Wideband CDMA (WCDMA) 55 Multiple Access ... was similar to cdma2 000, and the other was similar to the ETSI/ARIB proposal. Thus, eventually, there were only 4 systems for 3G mobile com- munications — cdma2 000, UWC...

Ngày tải lên: 02/03/2013, 16:58

... standard IS -54 , its newer version IS-136, and Global System for Mobile Communica- tions (GSM), are all based on TDMA and FDD. In IS -54 and IS-136, each voice channel has a bandwidth of 30 kHz and ... spectrum allocation for UWC-136 is the same as for cdma2 000. The system features of UMTS and cdma2 000 are summarized in Table 1 -5. Chapter 1 22 11 Or, if necessary, the...

Ngày tải lên: 18/06/2014, 10:05

... supported: 12.2 (GSM enhanced full rate), 10.2, 7. 95, 7.40, 6.70, 5. 90, 5. 15, and 4. 75 kb/s. ACELP coders belong to the vocoder class of encoders that, unlike a waveform quantizer, model the vocal tract as ... shown as v A in Figure 3 -5. Chapter 3 68 4 In IS- 95, the convolutional code used has a constraint length 9 and rate 1 / 2 . Spreading In UMTS and cdma2 000, signaling...

Ngày tải lên: 18/06/2014, 10:05

... channels, and up to 55 traffic channels. In another possible configuration, the sync and pag- ing channels may be replaced by traffic channels. 123 cdmaOne and cdma2 000 824 8 25 8 35 8 45 846 .5 849 869 ... 8 45 846 .5 849 869 870 880 890 891 .5 894 MHz (a) 1 850 18 65 1870 18 85 1890 18 95 MHz (b) 1930 19 45 1 950 19 65 1970 19 75 1910 1990 Base Stations MobilesBase St...

Ngày tải lên: 18/06/2014, 10:05

... [5] TIA TR 45. 5, “The cdma2 000 ITU-RTT Candidate Submis- sion,” TR 45- ISD/98.06.02.03, May 15, 1998. [6] TIA/EIA/IS- 95- A: Mobile Station-Base Station Compatibility Standard for Dual-Mode ... Table 5- 1. 155 The GSM System and General Packet Radio Service (GPRS) 9 15 Downlink 890 9 35 960 Uplink Frequency (MHz) 200 kHz Paired Channels 900.2 9 45. 2 Figure 5- 1 Spectrum alloc...

Ngày tải lên: 18/06/2014, 10:05

... location and routing information of the mobile. In the STANDBY state, the mobile station is still GPRS-attached and sends the SGSN its location and routing information periodi- cally and each ... frequency bands, sep- arated by a guard band, are used — one for the uplink and the other for the downlink transmission. In TDD, on the other hand, the same frequency band is used...

Ngày tải lên: 18/06/2014, 10:05

... shown as C 1 in this figure. The spreading factor is 256 for common downlink physical channels and varies from 4 to 51 2 for a downlink DPCH. The I and Q channels are added in quadrature, scrambled ... emanating from nodes C1 and C2, rows 1 and 3 representing codes at C1, and rows 2 and 4 at C2. a NϪ1 kϭ0 h ik h jk ϭ 0 for i  j H N ϭ 3h ij 4,i,j ϭ 0,1,2, p , N Ϫ 1 227 Univ...

Ngày tải lên: 18/06/2014, 10:05

... (FDD). [10] 3GPP TS 25. 212, Multiplexing and Channel Coding. [11] 3GPP TS 25. 213, Spreading and Modulation (FDD). [12] 3GPP TS 25. 214, Physical Layer Procedures. [13] 3GPP TS 25. 2 15, Physical ... 2. [11] 3GPP TS 25. 401: UTRAN Overall Description, 2000. [12] 3GPP TR 23.922: Architecture for an All IP Network, 1999. 2 75 Evolution of Mobile Communication Networks Chapter 5, “T...

Ngày tải lên: 18/06/2014, 10:05

... routers [11], [16]. RSVP for Mobile Systems Problems arise when standard RSVP is used in a mobile communi- cations network. Reference [11] has studied these problems in detail, and also summarizes ... arrival process is purely random, it is often not easy to compute the required bandwidth for an arbitrary sustainable data rate, peak data rate, and the burst size except for very...

Ngày tải lên: 18/06/2014, 10:05