wide area network wan service for 3g mobile setup
Đồ án tốt nghiệp chọn đường và ứng dụng trong thiết kế mạng wide area network WAN
... Application Transport Internet Identical datagram Internet Identical datagram Internet Network Interface Identical frame Network Interface Identical frame Network Interface Physcal net 1 Physcal net 2 Hình 2-2 LINK ID ADVERTISING ... với mục đích phục vụ cho việc xây dựng mạng WAN cho công ty Điện -ĐiệnTử Tin Học Sao Bắc Đẩu, và sau đó là thiết kế mạng WAN đó. 5.1 Các giao thức WAN 5.1.1 Giao thức PPP (Point-to-Point Protocol) PPP ... cầu 2 mức bọc nh hình vÏ sau: ICMP HEADER ICMP DATA Datagram Header DATAGRAM DATA AREA FRAME HEADER FRAME DATA AREA 2.3.3 Chọn đờng IP Trong một hệ thống chuyển mạch gói, việc chọn đờng đợc xem nh ...
Ngày tải lên: 04/04/2014, 07:36
McGraw-Hill-2002-WCDMA and cdma2000 for 3G Mobile Networks
... Evolution of Mobile Communication Networks 261 Review of 3G Requirements [1]-[4] 262 Network Evolution 264 First-Generation Network 264 Second-Generation Networks 266 2Gϩ Networks 268 3G Network 270 All-IP ... with a radius of less than 50 m 3G networks must interoperate with legacy networks, such as a Public Switched Telephone Network (PSTN) or Integrated Services Digital Network (ISDN) [12], as well ... over a PSTN. Finally, the 3G networks should be synergis- tic with the architecture of the future network. The 3G standards envisage different types of user traffic. For example, it may be ■ Constant...
Ngày tải lên: 02/03/2013, 16:58
Tài liệu W-CDMA and cdma2000 for 3G Mobile Networks pdf
... 318 Providing Requested QoS 320 Differentiated Services (DiffServ) 323 RSVP for Mobile Systems 325 Summary 329 References 329 Chapter 10 Network Planning and Design 331 Network Design 334 Spectrum Requirements ... provide advanced mobile tele- phone service, and the remaining 30 MHz was reserved for private services. In 1975, the Illinois Bell Telephone Company filed a peti- tion to the FCC asking for permission ... 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 Transfer Capability None Table...
Ngày tải lên: 23/12/2013, 01:17
BACnet Wide Area Network Security Threat Assessment ppt
... BACnet/IP. For Annex H, the B/IP PAD sits on the network listening for messages from remote B/IP PADs as well as from local devices sending messages to remote networks. There is a need for authentication ... Read-Broadcast-Distribution-Table, Register-Foreign-Device, Read- Foreign-Device-Table, Delete-Foreign-Device Table- Entry, Distribute-Broadcast-To -Network, Original-Broadcast-NPDU, etc. Authenticating foreign devices ... requirements for four security levels for cryptographic modules to provide for a wide spectrum of data sensitivity and a diversity of application environ- ments. Four security levels are specified for...
Ngày tải lên: 14/03/2014, 22:20
McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_2 doc
... environment. 15 For example, nine paths, as shown in Table 2-6, have been used in simulating a mobile radio channel in a typical urban area for Digital Audio Radio (DAR) systems. For the represen- tative ... important features of 3G. Because of the many advantages that it offers, the CDMA technology forms the basis of 3G systems. References [1] W.R. Young, “Advanced Mobile Phone Service: Introduction, Background, ... Statistical Model for a Land Mobile Satellite Link,” IEEE Trans. Veh. Tech., Vol. VT-34, No. 3, August 1985, pp. 122 — 127. [16] G.E. Corazza, et al., “A Statistical Model for Land Mobile Satellite...
Ngày tải lên: 18/06/2014, 10:05
McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_3 doc
... is a sequence of k information bits for which the receiver performance is optimum, then that sequence will be the first k information bits of a sequence that optimize the performance at any later ... codes. Walsh Codes Various physical channels may exist at any time on a radio interface of a 3G system. For example, at a mobile station, there may be one or more dedicated physical data channels, a dedicated ... of Wideband CDMA (W-CDMA) 00 01 10 11 t State T2T3T4T5T6T 10 01 10 11 11 00 00 00 00 00 10 10 00 01 01 Trellis Depth 3 Figure 3-9 The trellis diagram for the encoder of Figure 3-7 Thus, for...
Ngày tải lên: 18/06/2014, 10:05
McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_4 ppt
... metric for a path. In this way, the branch metrics for all paths of the trellis diagram are computed. For an encoder with m registers, the number of states for the trel- lis diagram is 2 mϪ1 . For ... allocation is 50 MHz for cellular systems and 120 MHz for Personal Communications Services (PCS). The spectrum is divided into a number of bands as shown in the fig- Chapter 4 122 Mobile Radio Systems,” ... antenna. For example, with a given transmit- ter power, it extends the coverage area, decreases the probability of the far-near problem that was discussed before, reduces interference to a given mobile...
Ngày tải lên: 18/06/2014, 10:05
McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_5 potx
... party. ■ Bearer services These include data services and short messaging services. For data services, the MSC may be connected to a circuit-switched PSTN via a modem or to a public data network via ... Stack cdma2000 takes the information — user data and signaling — from the higher layers and adds two lower-layer protocols before trans- Chapter 4 140 foreign serving area informs the HLR of the home ... all mobile subscribers who are registered in a public land mobile network (PLMN). There may be just one HLR at a central location in a network or many of them dis- tributed throughout the network, ...
Ngày tải lên: 18/06/2014, 10:05
McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_6 pdf
... perform signaling and control for non-GPRS services. For example, it can support short messaging service over a GPRS radio channel and efficiently process paging messages and mobile location information ... Equipment (MPE), the 3G- core network is very similar to the core network of a GSM with General Packet Radio Service (GPRS) capabilities. A detailed description of a GSM and GPRS network may be found ... (ETSI)/Special Mobile Group (SMG) developed two standards for International Mobile Telecommunication in the year 2000 (IMT-2000). One of them is the Universal Mobile Telecommunications System (UMTS) Wideband...
Ngày tải lên: 18/06/2014, 10:05
McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_7 potx
... transparently by the BMC. As for other functions per- formed, this entity on the network side periodically estimates the volume of the cell broadcast traffic and forwards the information to the RRC layer ... (PDCP) Overview Currently, the most common protocols for data services are IPv4 and IPv6 at the network layer and TCP and User Datagram Protocol (UDP) at the transport layer. Because new services and applications are ... Radio Network Temporary ID (U-RNTI) and the Cellular Radio 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...
Ngày tải lên: 18/06/2014, 10:05
McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_8 potx
... contain information to invoke an Advanced Intelligent Network (AIN) function. 3G Network The 3G UMTS network architecture was shown in Figure 6-2 [11]. As maybe seen there, the core network combines ... following: ■ Mobiles must be able to roam seamlessly from an IP network to a 2G or 2Gϩ, GSM/GPRS network and to earlier versions of a 3G network, and vice versa. 271 Evolution of Mobile Communication Networks ... a mobile station moves into a foreign service area, its Chapter 7 264 BTS MSC HLR VLR PSTN ISDN MS Um Other MSC A B C D Ai Di AC EIR Figure 7-1 The reference model of a mobile communication network TEAMFLY ...
Ngày tải lên: 18/06/2014, 10:05
McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_9 pptx
... subject. 299 Quality of Service (QoS) in 3G Systems Figure 9-1 Provision of QoS in 3G networks ■ Switching delays. This component increases with the number of nodes in a network. Delays in packet-switched networks ... DiffServ network over virtual connections between two IntServ-capable routers [11], [16]. RSVP for Mobile Systems Problems arise when standard RSVP is used in a mobile communi- cations network. ... with a discussion of how a 3G network can provide QoS to a mobile sta- tion as it is handed over from one cell to another in the same serving area, or from one serving area to another. Overview...
Ngày tải lên: 18/06/2014, 10:05
McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_10 pdf
... another protocol called Mobile IP with Location Register (MIP-LR) for mobile wireless networks. According to this protocol, when a mobile station moves into a for- eign serving area, its new location ... multimedia services over these networks at 1.536 or 2 Mb/s. If, as is usually the case, mobile customers expect to be provided the same services as are routinely available over fixed networks, mobile networks ... provision of the quality of service [QoS] in all IP networks, and so on) that would be relevant to 4G [2]–[5]. Driving Force Behind 4G The demand for mobile telephone services has been phenomenal. Since...
Ngày tải lên: 18/06/2014, 10:05
McGraw Hill - 2002 - W-CDMA and cdma2000 for 3G Mobile Networks_11 potx
... System 7 for Q.2140 MUD Multiuser Detection MUI Mobile User Identifier NACK Negative ACK NAS Nonaccess Stratum NMT Nordic Mobile Telephone NNI Network- Node Interface NS Network Service NSAPI Network ... Special Mobile Group SMS Short Messaging Service SM-SC Short Messaging Service Center SMS-IWMSC SMS Interworking MSC SMS-GMSC SMS Gateway MSC SNDC Subnetwork-Dependent Convergence SNDCP Subnetwork-Dependent ... Terminal Equipment TF Transport Format TFC Transport Format Combination TFCI Transport Format Combination Indicator TFCS Transport Format Combination Set TFI Transport Format Indicator; Temporary...
Ngày tải lên: 18/06/2014, 10:05
CDMA and cdma2000 for 3G Mobile Networks_1 doc
... is a sequence of k information bits for which the receiver performance is optimum, then that sequence will be the first k information bits of a sequence that optimize the performance at any later ... codes. Walsh Codes Various physical channels may exist at any time on a radio interface of a 3G system. For example, at a mobile station, there may be one or more dedicated physical data channels, a dedicated ... N C1j2ϭ a N iϭ1 b i b iϩj 85 Principles of Wideband CDMA (W-CDMA) Decoding Convolutional Codes Conceptually, a convolutional code can be decoded in the following manner. For a given number of information bits, say,...
Ngày tải lên: 18/06/2014, 16:20
