Wireless, Telecom and Computer Glossary. Are there wireless telecommunications or network or security terms or acronyms that you keep hearing, but that whose meanings are unclear to you Your prayers have been answered. Check this alphabetic list of 2,4. If the term you are looking for is not listed, please suggest it to us. We will define it for you, and add it to this list for the benefit of other readers, also. For tongue in cheek, humorous definitions of many of these terms, check out our alternative acronyms page. We recommend that you copy only the URL pointing to this page, and not the entire page, as we update it frequently. You are welcome to incorporate definitions from this page for your own use. Please contact us if you wish to license a customized version of this glossary. This license will include regular updates, and can be customized to include your own company logo. 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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 9 Basic Ethernet at 1. Mbitsec. Ethernet running at 1. IP IP Multimedia Subsystem, IMS IP 3GPP. Copyright EFORT 2014 1 Voice over IP over LTE VoLTE Impacts on LTE access EFORT http 1 Introduction IMS IP Multimedia Subsystems has been around. Business Rule Engine Pdf: Full Version Free Software Download. Mbitsec. Ethernet running at 1,0. Mbitsec. QAM with 7 bits per symbol. QAM with 4 bits per symbol. First Generation. Refers to analogcellular systems. A cdma. 20. 00 notation that indicates that one carrier is being used. Compare with 3x. See Ev. DOSee EVDVcdma. 20. Mcps. The theoretical top speed is 1. Second Generation. Refers to digital cellular and PCS wireless systems oriented to voice and low speed data services. Receive, Reshape an optical signal. See 3. RQAM with 5 bits per symbol. Third Generation. Refers to the next generation of wireless systems digital with high speed data. Being standardized by 3. G Ip Multimedia Subsystem Ims Pdf' title='3G Ip Multimedia Subsystem Ims Pdf' />GPP and 3. GPP2. 3G Internet Appliance. Generation Partnership Project for W CDMA GSM3rd Generation Partnership Project for cdma. G Service Provider. Reshaping, Retiming, Reamplifying an optical signal. See 2. RThree Way Call. A cdma. 20. 00 notation that indicates that three carriers are being used. Compare with 1x. Not widely implemented. Although this allows higher maximum speeds, the average speed per user will not change significantlycdma. Mcps. Fourth generation All IP wireless system that will probably be based on OFDM to provide downlink rates of 1. Mbps to 1 Gbps and uplink rates of 1 1. Mbps. QAM with 6 bits per symbol. G Ip Multimedia Subsystem Ims Pdf' title='3G Ip Multimedia Subsystem Ims Pdf' />An IEEE committee that standardizes a wireless Ethernet replacement technology in the ISM band. Mbps in the 2. 4. GHz band. 8. 02. 1. Mbps in the 5 GHz band. Mbps in the same band as 8. A Wi. Fi. WLAN variant that is higher speed 5. Mbps than 8. 02. Because it also operates in a different frequency band it has proven less popular than 8. The range of this protocol is also lower and the LOS requirements more stringent. See ADRCIEEE Wireless LAN system providing throughput of about 1. Mbps but see ADRCAn IEEE standard for network interoperability between WLAN protocols. An IEEE standard for operation of their WLAN protocols outside the normal frequency bands e. An IEEE standard for Qo. S in their WLAN protocols 8. An IEEE standard for interconnection between wireless APs. A second generation version of Wi. Fi providing 5. 4 Mbps raw throughput typically a user data rate of about half that in the same 2. GHz frequency band as 8. This gave it an advantage over 8. An IEEE standard for spectrum and transmit power management for their WLAN protocols. Enhanced security for IEEEWLAN protocols. An adaptation of 8. WLAN protocols to the Japanese 4. GHz frequency band. A proposed IEEE standard for RRMA group for editorial maintenance of IEEE8. WLAN standards. A future IEEEWLAN protocol that promises raw data rates of 5. Mbps in either the 2. GHz or 5 GHz band and thus will likely eventually replace 8. The protocol is scheduled for completion in 2. See EWCA proposed IEEE standard for ITS. Also known as WAVEA proposed IEEE standard for handoff between APs. A proposed IEEE standard for mesh networking. A proposed test specification for IEEEWLAN standards. A proposed standard for authorization of users on IEEEWLANs. A proposed wireless network management standard for IEEEWLAN protocols. A proposed standard for the protection of system management information in IEEEWLAN protocols. A proposed standard for operation of IEEEWLAN protocols in the 3. GHz frequency band. See Bluetooth. IEEEWi. Max radio interface. An IEEEgroup studying MBWAIEEE standard for Ethernet. PSK with 8 states, allowing the coding of 8 bit combinations. It is used in EDGE. QAM with 3 bits per symbol. The ES service code in many parts of the United States, Canada and a few other countries. A An IP host address. Interface between BSC and MSC. Interface between BTS and BSCAssisted GPS. Network provides information to mobile device to acquire satellite signals and may assist with processing of received data. Interface between the MSC and BSThe primary CAVE authentication key, used to generate SSDAnalogDigital. Usually used in the context of conversion from analog to digital or vice versaGSM authentication algorithm. GSM data encryption algorithm. A stream cipher for the encryption of 1. GSM bursts e. g. Intended to be stronger than A52 it has a number of serious flaws. A deliberately weakened stream cipher for the encryption of 1. GSM bursts e. g. The stronger version is A51. An encryption algorithm for GSM and EDGEGSM voice encryption algorithm. Used to generate Kc. Authentication, Authorization and Accounting entity. See RADIUS and Diameter. AAL Adaptation Layer. Active Antenna Systems. Augmented BNF. Defined in RFC2. Average bit rate. Alternate Billing Service. Authentication Centre. Stores information for authenticating mobiles, and encrypting their voice and data transmissions. Analog Control Channel. See FSKAsynchronous Control Character Map. Access Overload Class. CDMA Access Control by Call Type. Automatic Call Distributor. Distributes incoming calls to one of a number of people equally able to handle them e. Adaptive CELPAlgebraic CELPAuthentication Control Function. Automatic Code Gapping. A method of shedding load in telecommunications systems. Access Channel. Acknowledgement signal. Adjacent Channel Leakage Ratio. The ratio of the on channel transmit power to the power measured in one of the adjacent channels. An important W CDMA parameter. SS7. ISUP Address Complete message. Response to IAMAdjacent Channel Power. Authorization Call Routing Equipment. Used for routing calls to cellular phones with a cordless mode. Abbreviated Dialing. Architecture Document. Advertising Agent. Provides information to a MS on the services provided by a 3. G network. Application Data Delivery Service. See SMSApplication DF. Interference from signals at slightly different frequencies.