gsm edge radio access network geran

... CÁC THÀNH PHẦN CÓ TRONG MẠNG RADIO ACCESS NETWORK SVTH: VÕ THỊ KIM NGÂN LỚP: D19CQVTHI01-N Trang 20 Hình 3 2 Mô tả kiến trúc mạng O-RAN O-RAN (Open Radio Access Network) có nhiều nhóm công việc ... giúp tăng cường hiệu suất và khả năng phục vụ trong mạng di động.Kiến trúc 5G O-RAN (Open Radio Access Network)Kiến trúc 5G O-RAN là một kiến trúc mạng truy cập vô tuyến (RAN) mở được thiết kế ... cấp bởi nhiều nhà cung cấp khác nhau CHƯƠNG 3: TRÌNH BÀY VỀ CÁC THÀNH PHẦN CÓ TRONG MẠNG RADIO ACCESS NETWORK SVTH: VÕ THỊ KIM NGÂN LỚP: D19CQVTHI01-N Trang 19 Có thể dễ bị tấn công vì nó dựa

Ngày tải lên: 03/07/2024, 14:56

... Mobile Radio Access Networks 1.1 FUTURE EVOLUTION OF MOBILE RADIO ACCESS NETWORKS With the accelerating deployment of the third generation (3G) mobile communications networks ... high speed downlink packet access (HSDPA), multiple... consists of radio access nodes, radio network controllers, and operation and maintenance nodes The radio access nodes are responsible ... terminals to the radio access network via the air interface and they are normally referred to as base stations in the cellular networks In the UMTS terrestrial radio access networks (UTRAN),

Ngày tải lên: 18/04/2014, 10:43

... follows:  Radio Access Network TSG;  Core Network TSG;  Service and System Aspects TSG;  Terminals TSG. Within these groups the one most relevant to the WCDMA technology is the Radio Access Network ... UMTS Core Network Architecture and Evolution While the UMTS radio interface, WCDMA, represented a bigger step in the radio access evolution from GSM networks, the UMTS core network did ... manufacturers). The network elements can be grouped based on similar functionality, or based on which sub-network they belong to. Functionally the network elements are grouped into the Radio Access Network

Ngày tải lên: 14/08/2014, 12:21

... Radio Communications, PIMRC’97, Helsinki, Finland, 1 4 September 1997, Vol 1, pp 231–235 [12] 3GPP Technical Specification 25.306, UE Radio Access Capabilities [13] www.nokia.com 7 Radio ... User-plane RRC L3 Control Signalling radio bearers U-Plane radio bearers PDCP BMC RLC L2... idle Depending on WCDMA for UMTS 132 40 96 chips 10 24 chips Access slot AICH 0 1 2 3 14 20 ... Transmission with the Random Access Channel In addition to the uplink dedicated channel, user data can be sent on the Random Access Channel (RACH), mapped on the Physical Random Access Channel (PRACH).

Ngày tải lên: 14/08/2014, 12:21

... of connection between UE and the other radio access system (e.g GSM/ GPRS), the other radio access system initiates release of the used UTRAN radio resources and UE context information ... for capacity - Requirements for quality - Area type /radio propagation... TR 25. 9 95: ‘Measures employed by the UMTS Radio Access Network (UTRAN) to cater for legacy User Equipment ... header. If the new cell belongs to another radio access system, such as GPRS, the UE enters idle mode and accesses the other system according to that system’s access procedure. In the Cell_PCH state

Ngày tải lên: 14/08/2014, 12:21

... 8.20. GSM base station Dual band antenna for GSM and UMTS band WCDMA base station GSM base station UMTS band WCDMA base station GSM band Diplexer Figure 8.23. Co-siting of GSM and WCDMA Radio Network ... For more information on the radio network optimisation process please refer to [3], Chapter 8, and for advanced monitoring and network tuning see [3], Chapter 10. 8.4 GSM Co-planning Utilisation ... for speech service of GSM1800. Therefore, a 144 kbps WCDMA data service can be provided when using GSM1800 sites, with the same coverage probability as GSM1800 speech. If GSM900 sites are used

Ngày tải lên: 14/08/2014, 12:21

... connections. Admission control accepts or rejects a request to establish a radio access bearer in the radio access network. The admission control algorithm is executed when a bearer is set up ... because of the excessive interference that it would produce in the network. The limits for admission control are set by the radio network planning. Several admission control schemes have been suggested ... the throughput-based admission control strategy, the new requesting UE is admitted into the radio access network if  UL þ ÁL UL À threshold ð9:17Þ and the same in downlink:  DL þ ÁL < DL

Ngày tải lên: 14/08/2014, 12:21

... can achieve a diversity gain as well as improved decoding efficiency. 11.3 HSDPA Impact on Radio Access Network Architecture All Release ’99 transport channels presented earlier in this book are ... will not suffer range problems if the network was dimensioned to enable an uplink transmission rate of 64 kbps or more in the whole network 11 .8. 4 HSDPA Network Performance with Mixed Non-HSDPA ... retransmission handling has been discussed earlier but the inherent large delays of the existing Radio Network Controller (RNC)-based Automatic Repeat reQuest ARQ architecture would result in unrealistic

Ngày tải lên: 14/08/2014, 12:21

... Universal Terrestrial Radio Access Network FDD Frequency Division Duplex FEC Forward Error Correction FiVe Field Verification GERAN GSM EDGE Radio Access Network GPRS General Packet Radio Service ... handovers should be supported to 3G Universal Terrestrial Radio Access Network and 2G GSM EDGE Radio Access Network (GERAN) There... intra-LTE handovers in [6] and for 3G- 2G ISHO ... Radio Bearer RF Radio Frequency RLC Radio Link Control RNC Radio Network Controller RoHC Robust Header Compression RRC Radio Resource Control RRM Radio Resource Management RSRP Reference

Ngày tải lên: 27/10/2014, 00:38

... management Carrier sense multiple access Direct retry Frequency division multiple access Fuzzy selected decision GSM/EDGE radio access network General packet radio service Global system for mobile ... terrestrial radio access network Voice GERAN Vertical handover Voice over IP Voice UTRAN Wideband code division multiple access Wireless local area network Wireless metropolitan area network Wireless ... indoor Select GERAN only Select GERAN only Voice and outdoor Select GERAN first and then UTRAN Select UTRAN first and then GERAN Select UTRAN only Select UTRAN first and then GERAN Select GERAN first

Ngày tải lên: 05/03/2019, 08:44

... including Radio Local Area Networks (WAS/RLANs)" [6] ETSI EN 301 489: "Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment ... M.1652: Dynamic frequency selection (DFS) in wireless access systems including radio local area networks for the purpose of protecting the radiodetermination service in the GHz band 84 ... compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics; Part 1" R 100 028-2: "Electromagnetic compatibility and Radio spectrum

Ngày tải lên: 11/09/2021, 07:23

... al.: Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access network EURASIP Journal on Wireless Communications and Networking 2011 2011:28 Submit ... overview of WiMax access technology and the overhead analysis of MAP are described in the following section In Section 3, the burst mapping algorithm is proposed The influence of the radio resource ... in the last section MAP overhead of WiMax access Each WiMax connection obtains a connection identification (CID) from the BS when it is admitted to the network The BS then allocates appropriate...

Ngày tải lên: 21/06/2014, 02:20

... extended by system-level simulations THEORY 2.1 Tessellations and network layouts Nominal network layouts are used in mobile radio network design for initial dimensioning and for guidance on selection ... antenna radiation pattern, network configuration, and service types The tool is setup with a number of network configuration, radio resource management (RRM), service type, network traffic, and propagation ... performance of the different network layouts for the base station antenna height Also the signal statistics of the different network layouts are analysed numerically over the whole network coverage area...

Ngày tải lên: 21/06/2014, 23:20

... Keying Radio Access Bearer Random Access CHannel Radio Access Network Radio Access Network Application Part Routing Area Update Radio Bearer Radio Frequency Relative Grant Radio Link Control Radio ... Control Radio Link Layer Radio Link Set Resource Manager Radio Network Controller Radio Network Temporary Identifier RObust Header Compression Round Robin Radio Resource Control Radio Resource Management ... services and overall system architecture TSG GERAN (GSM/ EDGE RAN) TSG GERAN covers similar issues like TSG RAN but for the GSM/ GPRS /EDGE- based radio interface Under each TSG there are further...

Ngày tải lên: 01/06/2014, 09:38

... the radio access network, interfaces within the radio access network between base stations and radio network controllers (RNC), and the interface between the radio access network and the core network ... phase shift keying Radio access bearer Random access channel Routing area identity Radio access network RAN application part Radio bearer Radio frequency Radio link control Radio network controller ... Frequency division multiple access Frame error ratio Frame protocol Future radio wideband multiple access system, EU research project File transfer protocol GSM/ EDGE Radio Access Network Gateway GPRS...

Ngày tải lên: 03/06/2014, 01:37

... standards-based Table WiBro system major parameters and radio access requirements Major system parameters Radio access requirements Duplexing Multiple Access Frequency band System Bandwidth TDD OFDMA ... exploited in GSM cellular system 124 channels, in GSM 900 and 374 channels in GSM 1800, each 200 kHz wide, are used for FDMA 1.2 Time Division Multiple Access TDMA is a popular multiple access technique, ... Specifications and Technical Reports for a 3rd Generation Mobile System based on evolved GSM core networks and the radio access technologies that they support The current Organizational Partners are Japanese...

Ngày tải lên: 27/06/2014, 09:20

... nghệ ADSL2+ đạt tốc độ truyền liệu xuống tối đa 24 Mbps) So sánh ADSL2+ ADSL Phần II Leased Line Networks N i dung:  Tổng quan Leased Line  Phương tiện truyền dẫn - Cáp đồng - Cáp quang  Ưu điểm, nhược điểm ... NTU Công ty V35 Công gi i han tôc ô 2Mbps NTU V35 Service Provider Công Công SERIAL SERIAL NTU : Network Terminal Unit ong vai tro nh DCE (Data Circuit Equipment) [ âu cai] Router ong vai tro nh...

Ngày tải lên: 28/07/2014, 13:23

... Enhanced Radio Access Technologies for Next Generation Mobile Communication Enhanced Radio Access Technologies for Next Generation Mobile Communication ... Radio Access Technologies for Next Generation Mobile Communication, 1–37 © 2007 Springer 2 CHAPTER Technology 1G 2G 2.5G 3G 3.5G 4G Standard AMPS, TACS, NMT, ETC TDMA, CDMA, GSM, PDC GPRS, EDGE, ... Specifications and Technical Reports for a 3rd Generation Mobile System based on evolved GSM core networks and the radio access technologies that they support The current Organizational Partners are Japanese...

Ngày tải lên: 07/08/2014, 21:20

... standards-based Table WiBro system major parameters and radio access requirements Major system parameters Radio access requirements Duplexing Multiple Access Frequency band System Bandwidth TDD OFDMA ... exploited in GSM cellular system 124 channels, in GSM 900 and 374 channels in GSM 1800, each 200 kHz wide, are used for FDMA 1.2 Time Division Multiple Access TDMA is a popular multiple access technique, ... multiple access (FDMA), time division multiple access (TDMA), and code division multiple access (CDMA) 39 Y Park and F Adachi (eds.), Enhanced Radio Access Technologies for Next Generation Mobile...

Ngày tải lên: 07/08/2014, 21:20

... traffic in the fixed networks, demands for broad ranges of services are becoming stronger even in wireless networks People 81 Y Park and F Adachi (eds.), Enhanced Radio Access Technologies for ... wireless networks, including e-mailing, Web access, and on-line services ranging from bank transactions to entertainment The 3G wireless networks based on single-carrier code division multiple access ... wireless networks Most of the wireless techniques to be developed for the 3.9G wireless networks will be used for the 4G wireless networks The broadband SC-CDMA technologies for the 4G wireless networks...

Ngày tải lên: 07/08/2014, 21:20