McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_4 ppt

... since 1995. Standards for 3G wireless services were published in 1999. Support for high-speed data at rates from 144 kb/s for urban and suburban outdoor envi- ronments to 2,048 Mb/s for indoor or ... 1 Speech Signal Analog, band-limited to 300 — 3000 Hz Data Rate 10 kb/s (only for control) Modulation FM for speech, FSK for data Frequency Deviation 12 kHz for speech and 8...

Ngày tải lên: 02/03/2013, 16:58

... 1 Speech Signal Analog, band-limited to 300 — 3000 Hz Data Rate 10 kb/s (only for control) Modulation FM for speech, FSK for data Frequency Deviation 12 kHz for speech and 8 kHz for data User Data ... frequency modulation is used for analog voice and FSK for signaling and con- trol data. The bandwidth of each channel allocated to an individual 23 Introduction W-CDMA (UTR...

Ngày tải lên: 23/12/2013, 01:17

... 3-2 . Digital systems, such as the North American 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 ... Mobile Telecommunica- tions System (UMTS) W-CDMA Frequency Division Duplex (FDD), UMTS W-CDMA Time Division Duplex (TDD), and cdma2000 — use direct-sequence code divis...

Ngày tải lên: 18/06/2014, 10:05

... out- put is a desired speech signal. The filter coefficients are determined 69 Principles of Wideband CDMA (W-CDMA) Mobile Communications System Speech Coding Algorithm IS-54/IS-136 Vector-Sum ... reg- R xy 1j2ϭ a N iϭ1 x i y iϩj Chapter 3 86 246 8 -2 - 4- 6 - 8 C(j) 15 Figure 3-1 7 The auto- correlation function of a maximal length sequence k ϭ 4. Because the outputs from r...

Ngày tải lên: 18/06/2014, 10:05

... System (TACS), and Nordic Mobile Telephone (NMT) in Europe operating at 450 and 900 MHz bands. The second-generation (2G) systems are based on IS-136, IS-95A, IS-95B, and GSM, and have the data trans- port ... of standards for third-generation (3G) wireless systems [1], [2], [5], [7]. These systems include cdma2000, Universal Mobile Telecommunica- tions System (UMTS) Wideband C...

Ngày tải lên: 18/06/2014, 10:05

... 45.5, “The cdma2000 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 Wideband Spread ... channels and the forward and reverse channel transmit functions. The distinctive features of a cdma2000 system may be summa- rized as follows: ■ Wider bandwidth and higher chip rate Fo...

Ngày tải lên: 18/06/2014, 10:05

... reservation request. It supports both IP and X.25 protocols and real-time as well as non- real-time data. Both point-to-point and point-to-multipoint commu- nications are possible. There is no restriction ... 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 pe...

Ngày tải lên: 18/06/2014, 10:05

... Network Temporary ID (C-RNTI). They are indicated by the 2-bit UE ID Type field. The UE IDs are 32 bits long for U-RNTI and 16 bits for C- RNTI. The C/T field is four bits long and identifies the ... efficiency for delay-sensitive information such as voice or video. It does this by reducing the size of the header fields of upper-layer packets using different header compression and...

Ngày tải lên: 18/06/2014, 10:05

... International Mobile Telecommu- nications-2000 (IMT-2000),” 1997. [3] IMT-2000: Recommendations ITU-R M.103 4-1 , “Require- ments for the Radio Interface(s) for International Mobile Telecommunications-2000 ... all-IP architecture to deliver 3G mobile telephone services to subscribers. References [1] IMT-2000: Recommendations ITU-R M.68 7-2 , 1997. [2] IMT-2000: Recommendations...

Ngày tải lên: 18/06/2014, 10:05

... net- work to assign the associated packets the highest priority and there- fore forward them first. Another traffic class may be such that associated packets can wait a while before they are forwarded ... treated for forwarding purposes on a per-hop basis. The forwarding treatment for a group of packets in the DiffServ model is termed the Per-Hop Behavior (PHB). There are many possible...

Ngày tải lên: 18/06/2014, 10:05

... developing 3G technologies. Lucent Technologies of the United States has developed base station equipment (such as 3G1 X and 3G3 X) that will provide 3G services for cdma2000, UMTS, and UWC-136, and is ... necessary to generate sufficient customer demand for 3G services and continue to use the infrastructure for 4G and possibly beyond. For this to be pos- 361 Beyond...

Ngày tải lên: 18/06/2014, 10:05

... 304 interleaving, 78 GSM, 165 UMTS, 79 IntServ, 298–300 IS-136 standard, 10, 22 IS-1361 standard, 22 IS-54 standard, 10, 58 IS-95, handoff options, 134 ISI (Inter-Symbol Interference), GSM, 168 isotropic antennas, ... Interim Standards IS-54 Interim Standard 54 for U.S. Digital Cellular IS-95 Interim Standard 95 for U.S. Code Division Multiple Access IS-136 Interim Standard 136 for U.S....

Ngày tải lên: 18/06/2014, 10:05

... direction, and carries system and cell-related information identifying the network and cells, information used in cell selection and handoff, the current control channel configuration para- meters, and ... ms frame. Supplementary channel 1 and 2, which are similar to the forward supplementary channels, provide higher data rates: (1) 9.6, 19.2, 145 cdmaOne and cdma2 000 Rate Set...

Ngày tải lên: 18/06/2014, 16:20

... 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, 16:20

... in nar- rowband CDMA systems, there are different types of handovers — hard handover and soft handover. The hard handover takes place when the base stations participating in the handover process ... UTRAN Iur and Iub Interface Data Trans- port and Transport Signaling for DCH Data Streams. [34] 3GPP TS 25.427, UTRAN Iur and Iub Interface User Plane Protocols for DCH Data Streams....

Ngày tải lên: 18/06/2014, 16:20