Misplaced Pages

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36-1166: [REDACTED] Look up BSC in Wiktionary, the free dictionary. BSC may refer to: Bachelor of Science , an educational degree, holders sometimes using post-nominal BSc Organizations [ edit ] Education [ edit ] Bentleigh Secondary College , in Melbourne, Australia Brentwood Secondary College , in Melbourne, Australia Birmingham–Southern College , in Alabama, United States Bismarck State College , in North Dakota, United States Bridgewater State University , in Massachusetts, United States Buffalo State College , in New York, United States Bluefield State College , in West Virginia, United States Bryant & Stratton College ,

72-437: A picocell will have several transceivers (TRXs) which allow it to serve several different frequencies and different sectors of the cell (in the case of sectorised base stations). A BTS is controlled by a parent BSC via the "base station control function" (BCF). The BCF is implemented as a discrete unit or even incorporated in a TRX in compact base stations. The BCF provides an operations and maintenance (O&M) connection to

108-412: A German music contest The Beacon Street Collection , a ska punk album by No Doubt Other uses [ edit ] Balanced scorecard , an organizational performance analysis tool Best supportive care, a term for palliative care used in clinical trials Broglio Space Centre , a spaceport The Baby-sitters Club , a series of books Building Service Cleaners Binance Smart Chain,

144-412: A German music contest The Beacon Street Collection , a ska punk album by No Doubt Other uses [ edit ] Balanced scorecard , an organizational performance analysis tool Best supportive care, a term for palliative care used in clinical trials Broglio Space Centre , a spaceport The Baby-sitters Club , a series of books Building Service Cleaners Binance Smart Chain,

180-514: A TDM (PCM) based interface, the Abis interface, and sends it towards the BSC. There are vendors which build their BTSs so the information is preprocessed, target cell lists are generated and even intracell handover (HO) can be fully handled. The advantage in this case is less load on the expensive Abis interface. The BTSs are equipped with radios that are able to modulate layer 1 of interface Um; for GSM 2G+

216-523: A computer networking protocol Biological safety cabinet , a laboratory pathogen housing Biological Stain Commission , an independent quality-control service for dyes Bright Star Catalogue , a list of stars visible to the naked-eye Bristol stool chart , a medical assessment scale for feces British Standard Cycle , a screw thread standard Biological species concept , a rule for distinguishing species Base station controller , part of

252-464: A computer networking protocol Biological safety cabinet , a laboratory pathogen housing Biological Stain Commission , an independent quality-control service for dyes Bright Star Catalogue , a list of stars visible to the naked-eye Bristol stool chart , a medical assessment scale for feces British Standard Cycle , a screw thread standard Biological species concept , a rule for distinguishing species Base station controller , part of

288-516: A cryptocurrency by Binance See also [ edit ] BCS (disambiguation) Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title BSC . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=BSC&oldid=1233197762 " Category : Disambiguation pages Hidden categories: Short description

324-516: A cryptocurrency by Binance See also [ edit ] BCS (disambiguation) Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title BSC . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=BSC&oldid=1233197762 " Category : Disambiguation pages Hidden categories: Short description

360-640: A fitness club chain owned by Town Sports International Holdings Other [ edit ] Barcelona Supercomputing Center , a research facility Bird Studies Canada , a nature conservation organization Border Security Command , a law enforcement agency in the United Kingdom British Security Co-ordination , a British World War II intelligence and propaganda operation in the United States British Society of Cinematographers ,

396-451: A fitness club chain owned by Town Sports International Holdings Other [ edit ] Barcelona Supercomputing Center , a research facility Bird Studies Canada , a nature conservation organization Border Security Command , a law enforcement agency in the United Kingdom British Security Co-ordination , a British World War II intelligence and propaganda operation in the United States British Society of Cinematographers ,

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432-657: A for-profit college chain in the United States Berkeley Student Cooperative , a housing organization at University of California, Berkeley Bishop's Stortford College , in Hertfordshire, United Kingdom Companies [ edit ] Boston Scientific Corporation , a medical device company British Steel Corporation , a metal manufacturer Bear Stearns , an investment bank, by stock symbol British Sugar , formerly British Sugar Corporation Boston Sports Clubs ,

468-493: A for-profit college chain in the United States Berkeley Student Cooperative , a housing organization at University of California, Berkeley Bishop's Stortford College , in Hertfordshire, United Kingdom Companies [ edit ] Boston Scientific Corporation , a medical device company British Steel Corporation , a metal manufacturer Bear Stearns , an investment bank, by stock symbol British Sugar , formerly British Sugar Corporation Boston Sports Clubs ,

504-527: A mobile telephone network Basic Spacing between Centers, in IC package Sport [ edit ] Barcelona Sporting Club , an Ecuadorian football club Basra Sports City , a sports complex in Iraq Bay State Conference , a high school athletic conference in Massachusetts, United States Big Sky Conference , a western United States college conference Big South Conference ,

540-401: A mobile telephone network Basic Spacing between Centers, in IC package Sport [ edit ] Barcelona Sporting Club , an Ecuadorian football club Basra Sports City , a sports complex in Iraq Bay State Conference , a high school athletic conference in Massachusetts, United States Big Sky Conference , a western United States college conference Big South Conference ,

576-406: A movie craft organization, members sometimes using post-nominal BSC Broadcasting Standards Commission , a British government agency incorporated into Ofcom California Building Standards Commission , a US state agency responsible for building codes Science and technology [ edit ] Binary symmetric channel , a data transmission error model Binary Synchronous Communications ,

612-406: A movie craft organization, members sometimes using post-nominal BSC Broadcasting Standards Commission , a British government agency incorporated into Ofcom California Building Standards Commission , a US state agency responsible for building codes Science and technology [ edit ] Binary symmetric channel , a data transmission error model Binary Synchronous Communications ,

648-492: A southeastern United States college conference Bi-State Conference , an Arkansas and Oklahoma junior college conference Bohemian Sporting Club , a Filipino football club Hertha BSC , a German football club BSC Glasgow F.C. , a Scottish football club Music [ edit ] Black Stone Cherry , an American hard rock band Blood Stain Child , a Japanese melodic death metal band Bundesvision Song Contest ,

684-440: A southeastern United States college conference Bi-State Conference , an Arkansas and Oklahoma junior college conference Bohemian Sporting Club , a Filipino football club Hertha BSC , a German football club BSC Glasgow F.C. , a Scottish football club Music [ edit ] Black Stone Cherry , an American hard rock band Blood Stain Child , a Japanese melodic death metal band Bundesvision Song Contest ,

720-454: Is defined as a base station function by the relevant standards, there are several vendors which have implemented the solution outside of the BSC. Some vendors have implemented it in a stand-alone rack using a proprietary interface. In Siemens' and Nokia's architecture, the transcoder is an identifiable separate sub-system which will normally be co-located with the MSC. In some of Ericsson's systems it

756-866: Is different from Wikidata All article disambiguation pages All disambiguation pages BSC [REDACTED] Look up BSC in Wiktionary, the free dictionary. BSC may refer to: Bachelor of Science , an educational degree, holders sometimes using post-nominal BSc Organizations [ edit ] Education [ edit ] Bentleigh Secondary College , in Melbourne, Australia Brentwood Secondary College , in Melbourne, Australia Birmingham–Southern College , in Alabama, United States Bismarck State College , in North Dakota, United States Bridgewater State University , in Massachusetts, United States Buffalo State College , in New York, United States Bluefield State College , in West Virginia, United States Bryant & Stratton College ,

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792-413: Is different from Wikidata All article disambiguation pages All disambiguation pages Base station controller The base transceiver station , or BTS, contains the equipment for transmitting and receiving radio signals ( transceivers ), antennas , and equipment for encrypting and decrypting communications with the base station controller (BSC). Typically a BTS for anything other than

828-449: Is integrated to the MSC rather than the BSC. The reason for these designs is that if the compression of voice channels is done at the site of the MSC, the number of fixed transmission links between the BSS and MSC can be reduced, decreasing network infrastructure costs. This subsystem is also referred to as the transcoder and rate adaptation unit (.). Some networks use 32 kbit/s ADPCM on

864-563: Is obtained directly from radio planning engineering which involves modelling of the signal propagation as well as traffic projections. The transcoder is responsible for transcoding the voice channel coding between the coding used in the mobile network, and the coding used by the world's terrestrial circuit-switched network, the Public Switched Telephone Network. Specifically, GSM uses a regular pulse excited-long term prediction (RPE-LTP) coder for voice data between

900-511: Is undoubtedly the most robust element in the BSS as it is not only a BTS controller but, for some vendors, a full switching center, as well as an SS7 node with connections to the MSC and serving GPRS support node (SGSN) (when using GPRS). It also provides all the required data to the operation support subsystem (OSS) as well as to the performance measuring centers. A BSC is often based on a distributed computing architecture, with redundancy applied to critical functional units to ensure availability in

936-556: The case of an inter-BSC handover in which case control is in part the responsibility of the anchor MSC). A key function of the BSC is to act as a concentrator where many different low capacity connections to BTSs (with relatively low utilisation) become reduced to a smaller number of connections towards the mobile switching center (MSC) (with a high level of utilisation). Overall, this means that networks are often structured to have many BSCs distributed into regions near their BTSs which are then connected to large centralised MSC sites. The BSC

972-468: The event of fault conditions. Redundancy often extends beyond the BSC equipment itself and is commonly used in the power supplies and in the transmission equipment providing the A-ter interface to PCU. The databases for all the sites, including information such as carrier frequencies, frequency hopping lists, power reduction levels, receiving levels for cell border calculation, are stored in the BSC. This data

1008-544: The mobile device and the BSS, but pulse-code modulation (A-law or μ-law standardized in ITU G.711) upstream of the BSS. RPE-LPC coding results in a data rate for voice of 13 kbit/s where standard PCM coding results in 64 kbit/s. Because of this change in data rate for the same voice call , the transcoder also has a buffering function so that PCM 8-bit words can be recoded to construct GSM 20 ms traffic blocks. Although transcoding (compressing/decompressing) functionality

1044-487: The modulation type is Gaussian minimum-shift keying (GMSK), while for EDGE -enabled networks it is GMSK and 8-PSK . This modulation is a kind of continuous-phase frequency-shift keying . In GMSK, the signal to be modulated onto the carrier is first smoothed with a Gaussian low-pass filter prior to being fed to a frequency modulator , which greatly reduces the interference to neighboring channels ( adjacent-channel interference ). Antenna combiners are implemented to use

1080-494: The network and gain access to it. This signalling makes use of a channel known as the Broadcast Control Channel (BCCH). By using directional antennas 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. Typically these directional antennas have a beamwidth of 65 to 85 degrees. This increases

1116-553: The network management system (NMS), and manages operational states of each TRX, as well as software handling and alarm collection. The functions of a BTS vary depending on the cellular technology used and the cellular telephone provider. There are vendors in which the BTS is a plain transceiver which receives information from the MS (mobile station) through the Um air interface and then converts it to

BSC - Misplaced Pages Continue

1152-476: The received signal as it leaves the antenna is often used to preserve the balance between uplink and downlink signal. The base station controller (BSC) provides, classically, the intelligence behind the BTSs. Typically a BSC has tens or even hundreds of BTSs under its control. The BSC handles allocation of radio channels, receives measurements from the mobile phones, and controls handovers from BTS to BTS (except in

1188-491: The same antenna for several TRXs (carriers), the more TRXs are combined the greater the combiner loss will be. Up to 8:1 combiners are found in micro and pico cells only. Frequency hopping is often used to increase overall BTS performance; this involves the rapid switching of voice traffic between TRXs in a sector. A hopping sequence is followed by the TRXs and handsets using the sector. Several hopping sequences are available, and

1224-468: The sequence in use for a particular cell is continually broadcast by that cell so that it is known to the handsets. A TRX transmits and receives according to the GSM standards, which specify eight TDMA timeslots per radio frequency. A TRX may lose some of this capacity as some information is required to be broadcast to handsets in the area that the BTS serves. This information allows the handsets to identify

1260-566: The terrestrial side of the network instead of 64 kbit/s PCM and the TRAU converts accordingly. When the traffic is not voice but data such as fax or email, the TRAU enables its rate adaptation unit function to give compatibility between the BSS and MSC data rates. The packet control unit (PCU) is a late addition to the GSM standard. It performs some of the processing tasks of the BSC, but for packet data. The allocation of channels between voice and data

1296-480: 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). Typically two antennas are used per sector, at spacing of ten or more wavelengths apart. This allows the operator to overcome the effects of fading due to physical phenomena such as multipath reception . Some amplification of

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