| B-Band cellular |
In the U.S. cellular service industry, B-Band cellular refers to the regional Bell operating company's cellular subsidiary.
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| B-CDMA: broadband code division multiple |
Broadband code division multiple access (B-CDMA) is designed to correct many of the inherent short-falls of IS-95 (narrowband CDMA) and other digital narrowband technologies. In addition, it is being designed as a long-term solution to both voice and data wireless needs -- fixed and mobile. Some of the technical aspects of the B-CDMA air interface are related to its propagation characteristics.
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| Backhaul |
In wireless technology, backhaul refers to transporting voice and data traffic from a cell site to the switch
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| Backscattering |
Backscattering is radio wave propagation in which the direction of the incident and scattered waves, resolved along a reference direction (usually horizontal) are oppositely directed. A signal received by backscattering is often referred to as "backscatter."
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| Band |
Band in telecommunication refers to the following definitions: 1. The range of frequencies between two defined limits which are used for a specific purpose. 2. One of the geopolitical boundaries established to define a WATS (wide-area telephone service) serving area.
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| Band Elimination Filter |
Band Elimination Filter is an electrical device which blinds a receiving unit from recognizing a specific range of frequencies.
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| Band Pass Filter |
Band Pass Filter is a radio wave filter with a specific range of frequencies in which it is designed to pass, while rejects frequencies outside the pass-band. Resistor-inductor-capacitor circuit is an example of Band Pass Filter.
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| Bandwidth |
Bandwidth is the portion of the frequency spectrum required to transmit desired information. Each radio channel has a center frequency and additional frequencies above and below this carrier frequency which is used to carry the transmitted information. The range of frequencies from the lowest to the highest used is called the bandwidth.
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| Baseband |
Baseband is the transmission of a digital or analog signal signaling at its original frequencies and in its original form. It should not be changed by modulation.
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| Baseband layer |
Baseband layer, also known as baseband packet, is a physical layer protocol in the Bluetooth protocol stack. The Baseband in the Bluetooth manages physical channels and links apart from other services like error correction, data whitening, hop selection and Bluetooth security. The Baseband layer lies on top of the Bluetooth radio layer in the bluetooth stack. The baseband protocol is implemented as a Link Controller, which works with the link manager for carrying out link level routines like link connection and power control. The baseband also manages asynchronous and synchronous links, handles packets and does paging and inquiry to access and inquire Bluetooth devices in the area.
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| Baseband signal |
Baseband signal is a signal with frequency content centered around DC. Typically it is the modulating signal for an RF carrier.
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| BCCH: Broadcast Control Channel |
Broadcast Control Channel (BCCH) is a downlink-point-to-multipoint logical channel in GSM and cdma2000 systems used to send identification and organization information about common control channels and cell services.
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| BCH code:Bose-Chaudhuri-Hocquenghem Code |
Bose-Chaudhuri-Hocquenghem (BCH) Code is a family of powerful cyclic block forward error correction codes used in the transmission of data.
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| BCH: Broadcast Channels |
Broadcast Channels (BCH) are a group downlink point to multipoint logical channels used by mobiles to synchronize to and receive information necessary to access a cell in GSM, cdma2000, and WCDMA systems.
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| BE Service: Best Effort Service |
Best Effort (BE) Service is one of the five QOS service types defined in the IEEE 802.16 WiMAX. The 802.16 protocol supports five types of QoS: UGS (Unsolicited grant service), rtPS (Real time polling Service), ertPS (Extended Real-time POLLING SERVICE), nrtPS (Non-real-time polling service and BE (Best effort service). The aim of the Best Effort (BE) service is to provide efficient service to best effort traffic.
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| Bent pipe technology |
Bent pipe technology is a satellite technology to transmit calls from one point on Earth to a satellite and back down to another point.
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| BGCF: Breakout Gateway Control Function |
Breakout Gateway Control Function (BGCF), a component in the IP Multimedia Subsystem (IMS), controls call transfers to and from the public switched telephone network (PSTN).
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| BlackBerry |
BlackBerry is a two-way wireless device, made by Waterloo, that allows users to check e-mail and voice mail (translated into text), as well as to page other users via a wireless network service. Also known as a RIM device, it has a miniature qwerty keyboard for users to type their messages. It uses the SMS protocol. BlackBerry users must subscribe to a wireless service that allows for data transmission.
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| BLER: Block Error Rate |
Block Error Rate (BLER) is a ratio of the number of erroneous blocks to the total number of blocks received on a digital circuit. Block error rate (BLER) is used for W-CDMA performance requirements tests (demodulation tests in multipath conditions, etc). BLER is measured after channel de-interleaving and decoding by evaluating the Cyclic Redundancy Check (CRC) on each transport block.
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| Block code |
Block code is a family of codes having a one-to-one mapping between k-symbol source words and n-symbol code words.
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| bluesnarf (bluesnarfing) |
Bluesnarfing is the theft of information from a wireless device through a Bluetooth connection.
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| Bluetooth |
Bluetooth, defined in IEEE 802.15, is for wireless personal area networks (WPANs), which has characters such as short-range, low power, low cost, small networks and communication of devices within a Personal Operating Space. Bluetooth is for wireless transmission between a wide variety of devices such as PCs, cordless phone, headsets and PDAs within 10-meter range.
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| BREW: Binary Runtime Environment for Wir |
Binary Runtime Environment for Wireless (BREW) is an open system created by Qualcomm for delivering over-the-air applications and data. The hottest use for BREW to date has been downloadable games
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| Broadband |
Broadband refers to telecommunication that provides multiple channels of data over a single communications medium, typically using some form of frequency or wave division multiplexing.
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| Broadband PCS Broadband PCS |
Broadband PCS is the personal communications services created in the A- through F-Block auctions and used for voice and data. Mobile broadband PCS services include both voice and advanced two-way data capabilities that are generally available on small, mobile multifunction devices.
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