QAM - Quadrature Amplitude ModulationModulation technique using two amplitude modulated RF (Radio Frequency) carriers that are out of phase by 90 degrees. Information transfer is achieved... View more
QAP - Quality Access PointThe term QAP is used in wireless networks supporting the IEEE 802.11e Quality of Service enhancement. It defines a Quality of Service aware Access Poi... View more
QBSS - Quality Basic Service SetThe term QBSS is used in wireless networks supporting the IEEE 802.11e Quality of Service enhancement. It defines a Basic Service Set supporting a QAP... View more
QCI - QoS Class IdentifierIn LTE , the QoS Class Identifier is used as a reference to access node-specific parameters that control bearer level packet forwarding treatment (e.g... View more
QDU - Quantization Distortion UnitA particular quantization process will generate quantization noise that affects the quality of the process. Each quantization process is given a Quant... View more
QhcsThis specifies the UMTS quality threshold levels when applying prioritized hierarchical cell reselection. ... View more
QhystThis specifies the UMTS hysteresis value (Qhyst). It is used for FDD (Frequency Division Duplex) cells if the quality measure for cell selection and r... View more
QIB - Quality Indicator BitThe Quality Indicator Bit indicates signal quality on the Forward Dedicated Control Channel. ... View more
QmapQuality of the neighbouring (Qmap, n) or serving (Qmap, s) cell, after the mapping function is applied. ... View more
QoE - Quality of ExperienceWhere QoS is an indication of network performance, QoE is a measure of how network performance effects the end service and hence how the subscriber ex... View more
QoffsetQoffset This specifies the offset between the two cells. It is used for FDD (Frequency Division Duplex) cells in case the quality measure for cell sel... View more
QoS - Quality of ServiceThe performance of a communications channel or system is usually expressed in terms of QoS (Quality of Service). Depending upon the communication syst... View more
QoS NegotiatedThe QoS provided by the SGSN (Serving GPRS Support Node), this will be dependant on the QoS Requested and the QoS Subscribed. ... View more
QoS ProfileThe QoS (Quality of Service) profile in a GPRS system comprises a number of QoS parameters. A GPRS QoS profile is associated with each QoS Session. Th... View more
QoS RequestedThe term used to identify the QoS (Quality of Service) that the user is requesting for this PDP (Packet Data Protocol) context. The mobile should rece... View more
QoS SessionWithin a GPRS system the QoS (Quality of Service) session indicates the lifetime of a PDP (Packet Data Protocol) context. The period between the openi... View more
QoS SubscribedThe GPRS term used to identify the QoS (Quality of Service) that the user has subscribed to, this is stored in the HLR (Home Location Register) and cu... View more
QPCH - Quick Paging ChannelThis channel is utilized by a BS (Base Station) to inform a slotted mode MS (Mobile Station) whether to monitor the PCH (Paging Channel) or the FCCCH ... View more
QPSK - Quadrature Phase Shift KeyingPhase shift keying in which four different phase angles are used. Sometimes called quadriphase or quaternary phase shift keying. ... View more
QqualmeasQqualmeas Measured cell quality value. The quality of the received signal expressed in CPICH (Common Pilot Channel) Ec/N0 dB (decibel) for FDD (Freque... View more