The design philosophy has been to use advanced technology in order to create a point to multipoint system with high bandwidth efficiency, and comparatively large range. Intelligent network in call in architecture connection with gsm network prepaid service ussd call back service ucb. Main distribution bordmdb,rectifier,environment monitoring uniteemu,dc ventilation systemdvs,air conditioner,generato. Wireless base station remote radio unit rru renesas. It also does sending and reception of signals to and from higher network entities like the base station controller in mobile telephony. Capacity is increased and diversity reception is maintained from a single to a dual frequency system without the need for additional antennas. Jan 09, 2014 a parent base station controller bsc controls all btss via the base station control function bcf either a separate unit or integrated with the trx for compact base stations. Base transceiver system bts and its installation process, architecture, internal structures. It is hoped that the model can also be the basis for standardization of base station components. Base transceiver station for wcdma system vsatoshi maruyama vkatsuhiko tanahashi vtakehiko higuchi manuscript received august 8, 2002 in january 2001, fujitsu started commercial delivery of a wcdma base transceiver station bts.
Cellular network divides coverage area into cells, each served by its own base station transceiver and antenna low er power transmitters used by bss. The cell is the area given radio coverage by one base transceiver station. Implementation of all or part of an obsai specification may require. A cellular communication base station is an apparatus for transmitting and receiving electromagnetic waves in the radiofrequency rf range and it is the site through which cellular devices communicate with communication systems deployed throughout the world. The crucial element of the whole openbts architecture is a product of the ettus research.
The size of the base station is dependent upon its location and system needs. Due to the mobility of the subscribers, the organisational structure must be subdivided into different processing elements. On the left are the main blocks of a typical mimo ofdm transceiver. Antenna coupling level anc transceiver level trx base station control function bcf level 7. Base transceiver station wikipedia republished wiki 2. Key words base station architectures, software defined radio, baseband signal processing i. Thermal design of a base transceiver station using macroflow. Existing industry solutions have been tailored to meet the immediate needs of 2g or 3g transport, which entails connectivity from the base transceiver station btsnodeb to the base station controller bscradio network controller rnc. A telecommunication base station transceiver subsystem that can be easily configured to provide single or multicarrier frequency service. A base transceiver station bts is a piece of equipment that facilitates wireless communication between user equipment ue and a network. Pdf optimization means to have maximum capacity, better quality and reduced cost.
The antennas of a cellular base station are the source of radiofrequency radiation that is transmitted through the spatial volume of the. A base station antenna carrying 2g gsm signals gsm network architecture elements. Base transceiver station with only ac generator power machine. This arrangement requires an optical fiber to connect the digital baseband signals inside the bst hut with the tower mounted rru. The network can be that of any of the wireless communication technologies like gsm, cdma, wireless local loop, wifi, wimax or other wide area network. Base station subsystem bss bss consists of base station controller and one or more base transceiver stations bts each bts defines a single cell oincludes radio antenna, radio transceiver and a link to a base station controller bsc bsc reserves radio frequencies, manages handoff of mobile unit from one cell to.
Us6411825b1 distributed architecture for a base station. Siemens bs240 xl ii base transceiver station for sale online. We then dramatically increased the number of traffic channels in this bts and reduced its power consumption. The gsm network identifies each cell via the cell global identity cgi number assigned to each cell. Several btss together are controlled by one base station controller bsc. A cell is formed by the radio area coverage of a base transceiver station bts. They bring wimax operators flexibility and cost savings while retaining the. The tower, antennas, and base transceiver station make up a cell site. Basic network design electronic frontier foundation. Basic network design the cell base station the cell base station is the physical location of some of the equipment needed to operate the wireless network, such as antennas, gps timing systems, cell towers etc. A base transceiver station bts is a piece of equipment that facilitates wireless communication. The open base station architecture initiative obsai was a trade association created by hyundai, lg electronics, nokia, samsung and zte in september 2002 with the aim of creating an open market for cellular network base stations.
Cellular radio technologies, digital divide, integrated base stations, lowcost. The base frequency is set to 1920 mhz for the uplink channel and 2110 mhz for the downlink channel, and six physical channels are considered as described in table 3. The 2g gsm network architecture, although now superseded gives an excellent introduction into some of the basic capabilities required to set up a mobile communications phone network and how all the entities operate together. Oct 22, 20 installation base transceiver station equipment imn. In this paper base station architecture evolution towards full software defined radio technologies is analyzed. The conventional commercial cellular network architecture is based on an infrastructure of stationary base transceiver stations btss connected to the wired. A base transceiver system bts is a system in a mobile communication network. Open base station architecture initiative wikipedia. Purpose the purpose of this document is to provide recommendations for consideration. Geographical structures in a mobile communication network gsm is a worldwide standard for mobile communication with an extensive coverage. Base station system structure wireless innovation forum.
The family of integrated transceivers discussed in this article are the industrys first to support all existing cellular standards, 2g to 5g, and cover the full sub6 ghz tuning range. Impact of base transceiver station selection mechanisms on a. The distributed base station architecture illustrated in figure 2 places the rf transceivers on the tower. Vinod joseph, srinivas mulugu, in network convergence, 2014. Wireless base station remote radio unit rru back to top a wireless base station also known as a cell site or wireless base transceiver station, bts is a piece of equipment that facilitates wireless communication between user equipment ue and a network. Base transceiver station and base station controller tasks of a bss are distributed over bsc and bts q bts comprises radio specific functions q bsc is the switching center for radio channels functions bts bsc management of radio channels x frequency hopping fh x x management of terrestrial channels x mapping of terrestrial onto radio channels x. Global system for mobile gsm university of pittsburgh. The growth of wireless communication is increasing to.
Transceiver trx provides transmission and reception of signals. A parent base station controller bsc controls all btss via the base station control function bcf either a separate unit or integrated with the trx for compact base stations. At the base of every cell tower there is a base transceiver station bts that processes and handles local radio communications with cellular phones and facilitates communication between the wireless network and the landline network. Introduction wireless communication standards are evolving rapidly. The bcf provides a connection to the network management system nms and manages the transceiver s operational states. Abstract this document recommends the radiation envelope patterns and gains for the base transceiver station bts antennas. The new base station architecture offered by these transceivers allows base station designers more choices and ways to differentiate their product. This is a base transceiver station power system that has been designed in such a way that it comprises of one or two alternating current generating sets, the automatic transfer switch ats, the rectifier system, backup batteries and the breakers. A base transceiver stationor bts has many componentsindore components ex. Linux application openbts open base transceiver station is one of the projects that allows user to create. A base transceiver station bts mounted on a 20 metre ground. Ues are devices like mobile phones handsets, wll phones, computers with wireless internet connectivity. Base transceiver station and base station controller tasks of a rss are distributed over bsc and bts bts comprises radio specific functions bsc is the switching center for radio channels functions bts bsc management of radio channels x frequency hopping fh x x management of terrestrial channels x. Btse bs240 240 ii 240 xl 240xl ii a30808x3247k380177631 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.