Base Station Subsystem

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Topic: Base Station Subsystem

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	Base Station Subsystem - Wikipedia, the free encyclopedia
		The Base Station Subsystem (BSS) is the section of a GSM network which is responsible for handling traffic and signalling between a mobile phone and the Network Switching Subsystem.
		By using directional antennae on a base station, each pointing in different directions, it is possible to sectorise the base station so that several different cells are served from the same location.
		This increases the traffic capacity of the base station (each frequency can carry eight voice channels) whilst not greatly increasing the interference caused to neighboring cells (in any given direction, only a small number of frequencies are being broadcast).
	en.wikipedia.org /wiki/Base_Station_Subsystem (1246 words)

	37600.010525&ELEMENT_SET=DECL
		The switching node comprises means for the control of a first base station subsystem and a first interface for the connection to the first base station subsystem with a protocol corresponding to the connection specification used on the interface between the base station subsystem and the user equipment.
		The necessary parameters in the set used in the protocol between a switching node and a base station subsystem are dependent on the connection specification between the user equipment and the base station subsystem because the protocol is adapted to the connection specification, i.
		station subsystems use the same connection specification on the interface to the user, the protocol corresponding to this connection specification is selected and encapsulated in the messages between the switching nodes.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/37600.010525&ELEMENT_SET=DECL (4990 words)

	Network Switching Subsystem - Wikipedia, the free encyclopedia
		Each Base Station in the network is served by exactly one VLR, hence a subscriber cannot be present in more than one VLR at a time.
		Network Switching Subsystem is the component of a GSM system that carries out switching functions and manages the communications between mobile phones and the Public Switched Telephone Network.
		The Network Switching Subsystem, also referred to as the GSM core network, usually refers to the circuit-switched core network, used for traditional GSM services such as voice calls, SMS, and Circuit Switched Data calls.
	en.wikipedia.org /wiki/GSM_core_network (2328 words)

	BSS - Base Station System
		In GSM the Base Station System is a term given to a BSC (Base Station Controller) and the BTS (Base Transceiver Station) associated with it.
		Although not mandatory, through interpretation of the Abis interface standard BTS and BSC employed within a BSS will always be supplied by the same manufacturer.
		The number of BTS associated with a BSC is dependent on the manufacturer.
	www.mpirical.com /companion/GSM/BSS.htm (72 words)

	Cellular network - Wikipedia, the free encyclopedia
		Typically such systems use some kind of multiple access independently in each cell, so an early stage of such a handover (handoff) is to reserve a new channel for the mobile station on the new base station which will serve it.
		In this case there must be clear coordination between the base station and the mobile station.
		This can be used directly for distributing information to multiple mobiles, commonly, for example in mobile telephony systems, the most important use of broadcast information is to set up channels for one to one communication between the mobile transceiver and the base station.
	en.wikipedia.org /wiki/Cellular_network (2343 words)

	91481.011129&ELEMENT_SET=DECL
		In fact, whereas typical prior art BSS components must be housed in four separate cabinets, the reduced Base Station Subsystem of the present invention may be housed in as few as two cabinets.
		Stations according to claim 26, further comprising: a second integrated Transcoder and Rate Adaption Unit and controller means for coordinating communication to an external network.
		This embodiment significantly improves the reliability of the GSM-based system where it is employed, while simultaneously reducing complexity and cost of the system.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/91481.011129&ELEMENT_SET=DECL (4582 words)

	AirNet Unveils GSM Migration Path To 3G - 10/4/1999 - Wireless Week - CA3347
		Together, these components are all part of a complete AirNet base station subsystem, which includes a base station controller, operations and maintenance center, and transcoder rate adaptor unit.
		Taking advantage of GSM& open interface, AirNet has designed its base station subsystem to interoperate with various vendors' mobile switching centers.
		The AdaptaCell base transceiver station is a broadband technology that uses 10 megahertz of spectrum compared to the narrowband channels base stations currently use.
	www.wirelessweek.com /article/CA3347.html?spacedesc=&stt=001 (454 words)

	Overview of the Global System for Mobile Communications
		The mobile station measures the signal strength or signal quality (based on the Bit Error Ratio), and passes the information to the Base Station Controller, which ultimately decides if and when the power level should be changed.
		When a mobile station is switched on in a new location area, or it moves to a new location area or different operator's PLMN, it must register with the network to indicate its current location.
		Each input bit is encoded as two output bits, based on a combination of the previous 4 input bits.
	ccnga.uwaterloo.ca /~jscouria/GSM/gsmreport.html (6509 words)

	BSS Jobs, Average Salary for Base Station Subsystem (BSS) Skills
		Included is a guide to the average salaries offered in IT job ads that have cited BSS over the last 3 month to 29 April 2006 with a comparison to the same period last year.
		This section looks into the demand and provides a guide to the average salaries quoted in job ads citing BSS within the UK region over the last 3 months to 29 April 2006.
		The figures indicate the number of job ads and their proportion against the total number of ads sampled citing BSS.
	www.itjobswatch.co.uk /jobs/uk/bss.do (209 words)

	Power Architecture Community Newsletter, 14 Jan 2005: Design cost-effective wireless base stations
		Pierre Perdaems dissects the four essential subsystems of a wireless base station, then shows you how to determine which processor core is appropriate for each subsystem.
		By knowing the attributes a processor family must have to address all of a base station's subsystems optimally, system architects and project managers can minimize both RandD expenses and unit costs.
		This article has identified the key characteristics of a mobile base station's architecture and demonstrated that flexibility and programmability are essential characteristics of a good design, given the predictable evolution of wireless telecommunications.
	www-128.ibm.com /developerworks/power/library/pa-nl1-wirelessbase?... (1490 words)

	(WO 01/37600) METHOD FOR A HANDOVER BETWEEN DIFFERENT NODES IN A MOBILE COMMUNICATION SYSTEM
		The second switching node (GSM MSC 2) controls the second base station subsystem using a protocol corresponding to the connection specification used on the interface between the base station subsystem and the user equipment (UE).
	wipo.int /cgi-pct/guest/getbykey5?KEY=01/37600.010525&ELEMENT_SET=DECL (116 words)

	(WO 01/91481) CONTROL OF GSM BASED RADIO CELLULAR ARCHITECTURES INTEGRATED WITHIN TRANSCODER AND RATE ADAPTION UNITS
		Furthermore, the reduced BSS (180) disclosed integrates a Transcoder and Rate Adaption Unit (TRAU) (130) with a central processing unit for performing all remaining BSC-related tasks, resulting in a BSS (180) of significantly reduced complexity, higher reliability, and lower cost than typical GSM-based Base Station Subsystems, without violating GSM infrastructure or requiring any proprietary interfaces.
		In a GSM-based network the reduced BSS (180) of the present invention eliminates all switching functions from the Base Station Controller (110), thereby dramatically improving the reliability of the BSS (180) while reducing the complexity and cost.
		The reduced BSS (180) of the present invention also requires that all switching and inter-BTS handoff functions be performed in the Mobile Switching Center (120) element of the NSS (30).
	wipo.int /cgi-pct/guest/getbykey5?KEY=01/91481.011129&ELEMENT_SET=DECL (247 words)

	GSM NSS OVERVIEW
		BSSs are divided into multiple base transceiver stations (BTS) and a single base station controller.
		A BSS is the interface between all MSs in a given area and a corresponding network and switching subsystem.
		To accomplish these tasks, GSM networks are divided into subsystems including
	home.gci.net /~raff242/gsmnss.html (463 words)

	OBSAI Launches Base Station Test Specifications; Adds WiMax To
		"OBSAI is the only base station initiative to have built a robust set of interface specifications for key parts of the base station subsystem that can be used with GSM/EDGE, CDMA, and WCDMA air interface applications," he continued.
		The Open Base Station Architecture Initiative (OBSAI) is a forum of 115 telecommunications companies, spanning module, component, and base station vendor activity.
		Together they have created both open internal interface specifications for base station architecture and module specifications covering the areas of transport, control, baseband, and radio.
	www.rfglobalnet.com /content/news/article.asp?docid=97ecef1b-2b0b-4f8b-857e-b5fffde32990&VNETCOOKIE=NO (497 words)

	Cellular Operator - UltraWAVE - BSS
		The UltraWAVE BSC is Alvarion's high capacity base station controller that aggregates and manages the communications between the BTS and the GSM switching center.
		By using our base station subsystems you'll reduce your total cost of network ownership and provide a network growth path that allows you to pay as you grow, easily expanding your subscriber base and service offerings.
		The BS Plus is an integrated base station controller (BSC) and a base transceiver station (BTS) in a single enclosure.
	www.iwv.com /solutions/cellularoperator/products/ultrawavegsmnetworks/components/bss (307 words)

	Overview of GSM (extended abstract)
		The Base Station Subsystem is composed of two parts, the Base Transceiver Station (BTS) and the Base Station Controller (BCS).
		The handover procedures, an essential element of cellular systems, is managed at this layer, which involves the mobile station, the base station subsystem, and, to a lesser degree, the MSC.
		TDMA frames of a particular carrier frequency are numbered, and both the mobile station and the base station are synchronized on this number.
	ccnga.uwaterloo.ca /~jscouria/GSM/trio.html (2239 words)

	Radio-Electronics.Com :: GSM Tutorial - network
		The Base Station Subsystem (BSS) section of the GSM network is fundamentally associated with communicating with the mobiles on the network.
		The GMSC is thus in charge of obtaining the MSRN (Mobile Station Roaming Number) from the HLR based on the MSISDN (Mobile Station ISDN number, the "directory number" of a MS) and routing the call to the correct visited MSC.
		The architecture of the GSM system with its hardware can broadly be grouped into three main areas: the mobile station, the base station subsystem, and the network subsystem.
	www.radio-electronics.com /info/cellulartelecomms/gsm_technical/gsm_architecture.php (1151 words)

	null
		The GSM BSS consists of the base station, base station controller, transcoder submultiplexer and cellular transmission and connects the mobile subscriber's Mobile Station (MS) to the GSM network and through it to the Mobile Switching Centre (MSC).
		An industry pacesetter in GSM, EDGE and WCDMA Base Station Subsystems (BSS), Nokia is the leader in network evolution.
		The BSS also takes care of the mobility management of the cellular network as well as connecting to the packet-switched subsystem that enables the General Packet Radio Service (GPRS).
	www.nokia.co.uk /nokia/0,8764,21852,00.html (226 words)

	Problem and Previous Solutions
		Due to fast and cost-efficient installation of links in base station subsystems, new operating companies realize most of their connections in the Base Station Subsystem (BSS) with microwave links.
		The resulting network topology is a star configuration, where the traffic to several base station transceivers is distributed over a chain of microwaves and leased lines.
		Approaches to rule based alarm correlation are known from literature.
	www.kbs.uni-hannover.de /Arbeiten/Publikationen/1996/mascot97/node3.html (891 words)

	ipedia.com: Global System for Mobile Communications Article
		Macro cells can be regarded as cells where the base station antenna is installed in a mast or a building above the average roof top level.
		The primary disadvantage has been that GSM's radio network is based on TDMA technology, which is considered less "technologically advanced" than competing CDMA based systems, though practical performance figures are rather similar.
		the Network and Switching Subsystem (the part of the network most similar to a fixed network).
	www.ipedia.com /global_system_for_mobile_communications.html (2109 words)

	PCQuest : In Depth : GSM Technology
		Several BTSs are controlled together by a BSC (Base Station Controller).
		The MS (Mobile Station) is the subscriber end of the network and consists of the GSM device (cellphone) and the SIM (Subscriber Entity Module).
		The MSC (Mobile services Switching Center) is the central component of the network subsystem.
	www.pcquest.com /content/depth/103020704.asp (801 words)

	AirNet Communications Initiates Deployment of $30 Million Base Station Subsystem Contract for Carolina PCS I Limited Partnership
		Cells in densely populated areas will be equipped with AirNet's high-capacity, software-defined broadband base transceiver stations while remaining cells will be configured with AirSite® Backhaul Free™ Base Stations.
		The AirNet infrastructure includes an operations and maintenance center, base station controller, transcoder rate adapter unit and associated cell sites.
		"We designed the AirSite Backhaul Free Base Station to give service operators a significant business advantage.
	www.aircom.com /pressrel/Carolina02.htm (701 words)

	FDC > Base Station Antenna / RF Feeder Subsystems
		Base Station Antenna / RF Feeder Subsystems Splitters, Couplers, and Terminations Catalog 38
		More information on BSA/RF Feeder Subsystems can be found in our Document Library
		Andrew Filter and Diplexer products combine wireless RF system transmit and receive signals to a common port and provide the necessary rejection between the receiver and transmitter.
	www.andrew.com /products/fdc/bsa_rf_fdr_sbstym.aspx (171 words)

	G-246R Worldwide Wireless Infrastructure Expenditures
		This BCC report examines all of the equipment needed to make these services thrive, from carrier base stations to next-generation phones.
		Equipment providers have responded to these changes with a host of new products, including base stations, operational software and network switches.
		Industry projections have been made by BCC based on original studies of economic, social, and demographic information, as well as on critical examination of projections by industry analysts and those found in public sources.
	www.bccresearch.com /comm/G246R.html (1777 words)

	Booksurge
		It describes the Base Station Subsystem Engineering aspects of GSM as a whole, covering GSM evolution,GSM network architecture, Radio Interface and resources,Um radio interface and signal processing, The Abis, Data Transmission and securities, Radio Cellular Engineering fundamentals, Network Operations,GPRS overview and Operations Case Studies.
		Explained are the physical and logical radio channel structures of the GSM system along with the basic frame and slot structures.
		Described are the fundamental capabilities and operation of the GSM radio channel including channel coding, speech coding, RF power control, Handover types and algorithms and signaling at BSS.
	www.booksurge.com /product.php3?bookID=GPUB02069-00003 (176 words)

	BSSGP - Base Station Subsystem GPRS Protocol
		the provision by an SGSN (Serving GPRS Support Node) to a BSS (Base Station Subsystem) of radio related information used by the RLC (Radio Link Control) and MAC (Medium Access Control) function.
		The Base Station System GPRS Protocol is supported across the Gb interface, its primary functions include:
		the provision by a BSS to an SGSN of radio related information derived from the RLC/MAC function.
	www.mpirical.com /companion/GPRS/BSSGP.htm (86 words)

	Skyworks Solutions, Inc. - Superheterodyne Base Station Subsystem
		Skyworks Solutions, Inc. - Superheterodyne Base Station Subsystem
		All PAs and RFICs are designed to meet the stringent requirements of next generation base stations with exceptional IIP3, high P1dB, and low noise.
		Skyworks offers a variety of RFIC “building blocks” for superheterodyne base station transceivers.
	www.skyworksinc.com /irfs_sbst.asp (410 words)

	US06985723-20060110.html
		a first private base station controller for communicating with said mobile station within said common cell area, said public base station controller, said call manager and said private branch exchange.
		public and private communication service unit for communicating with an Internet protocol network, one of said public base station controllers, said public switched telephone network and said integrated services digital network; and
	www.uspto.gov /web/patents/patog/week02/OG/html/1302-2/US06985723-20060110.html (135 words)

	Unstrung - Nokia - TDC Mobile Selects Nokia - Wireless Networking News Wire
		Under the agreement, Nokia delivers GSM base station subsystem and WCDMA 3G radio access network infrastructure.
		Nokia also continues to supply the GSM base station subsystem (BSS) infrastructure.
		802.16 (497), Access Points (566), Base Station Controller (BSC) (150), Base Station Transceiver (BTS) (182), Code Division Multiple Access (CDMA) (321), Enhanced Data GSM Environment (EDGE) (237), iDEN (41), IEEE 802.11 (a,b,g) (1029), OSS/Billing/CRM (367), Service Gateways(GGSN/PDSN) (127), Ultrawideband (UWB) (111), WLAN Bridges (58), WLAN Switches (424)
	www.unstrung.com /document.asp?doc_id=81295&WT.svl=wire1_11 (639 words)

	Serebella: Index - Base ball hit double to Bashkortostan
		Serebella: Index - Base ball hit double to Bashkortostan
	www.serebella.com /encyclopedia/level2.php?start1=50000&start2=250 (9 words)

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