Descriptor and Table of Contents (1 of 24) for 3GPP TS – Mobile radio interface Layer 3 specification – Core network protocols; Stage 3. 3GPP TS End to end quality of service concept and architecture. 3GPP TS Architecture Principles for Relase 3GPP TS Mobile radio . 3GPP TS specifies that a UE should delete its stored TMSI and LAI after a the RRC connection establishment cause is definedwithin 3GPP TS
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Adjacent Channel Leakage Ratio. A measure of the power which leaks into certain specific nearby Radio Frequency RF channels as a result of transmitting in 3ypp given channel. It provides an estimate of how much a neighbouring radio receiver will be affected by the Out Of Band OOB emissions from a transmitter. It is defined as ts240.08 ratio of the filtered mean power in a set bandwidth within the wanted channel to the filtered mean power in an adjacent channel.
Adjacent Channel Rejection Ratio. Used in the context of repeaters.
3GPP TS (1 of 24) – Mobile radio interface layer 3: Core network protocols
It is the ratio of the Root Raised Cosine RRC weighted gain per carrier of the repeater in the pass band to the RRC weighted gain of the repeater on an adjacent channel. ACS is predominantly defined by the ratio of the receive filter attenuation on the assigned channel frequency to the receive filter attenuation on the adjacent channel.
Analogue to Digital Converter. A processor which samples and quantizes an analogue input signal to convert it to a digital output signal. Error recovery procedures are not provided, and in-sequence delivery is not guaranteed.
Online 2G/GSM, 3G/UMTS, 4G/LTE Message Analyser
Asymmetric Digital Subscriber Line. Ts24008 is a means of providing high-speed data transmission over conventional twisted-pair copper telephone lines, by frequency-division multiplexing with analogue voice traffic. Higher download speeds are provided than upload speeds. An element offering applications that require the control of Internet Protocol IP bearer resources, such as dynamic policy or ts24.08 control. Authentication and Key Agreement.
The process by which the Authentication Centre AuC and UE exchange information by which they can each verify a secret key held by the other, and then calculate keys to hs24.008 used for ciphering and integrity protection of data transmitted between the UE and the network.
The upper limit on the aggregate ts2.008 rate that can be expected to be provided across all non-Guaranteed Bit Rate GBR bearers. Ts24.080 traffic may, for example, be discarded by a rate-shaping function.
Adaptive Modulation and Coding. A form of link adaptation which adjusts the transmitted information ts24.00 rate by varying the modulation order and the Forward Error Correction FEC code rate. This is typically done to match an estimate of the instantaneous radio channel capacity. A model of the mains electricity supply to which equipment is connected, used for ElectroMagnetic Compatibility EMC emissions testing. Additional Maximum Power Reduction.
An additional value of maximum allowed uplink power reduction used to meet additional adjacent carrier leakage ratio and spectrum emission requirements which are signalled by the network in a specific deployment scenario. A type of source coding, often used for digital speech transmission, whereby the bit rate of the generated data stream is adapted by varying the encoded quality of the signal.
The different output data rates are provided by switching between different source codecs. A function by which eNodeBs can automati- cally determine which cells are their neighbours. The angle usually azimuth from which a signal ts24.080 relative to a reference angle of an antenna array. The angle usually azimuth at which a signal is transmitted relative to a reference angle of rs24.008 antenna array.
Absolute Radio Frequency Channel Number. Association of Radio Industries and Businesses. Allocation and Retention Priority. A scheme whereby the receiving terminal requests retransmission of packets which are detected to be erroneous. A measure of the width of a transmitted or received signal beam or set of signal paths, usually in the azimuth plane.
Additional Spectrum Emission Mask. Specifies additional spectral emission constraints for particular deployment scenarios.
Access Security Management Entity. Abstract Syntax Notation 1. A standardized notation used to describe structures for representing, encoding, transmitting, and decoding data; it is used for some UMTS and LTE ts224.008 specifications e. Alliance for Telecommunications Industry Solutions.
Used in conformance testing, to set the desired power of received signals or interference, for example modelling propagation loss. This key is used to generate security data. Additive White Gaussian Noise. 3ggpp with a flat power spectrum and Gaussian amplitude distribution. It is generally added to a received signal to simulate the effect of thermal noise and other sources of noise or interference. Base station Colour Code.
In LTE, it represents the ts24.0088 channel carrying broadcast system information.
A measure of received signal quality: Indicates the upper limit for a random backoff period by which a UE has to delay a new random access attempt if a response has not been received to a first random access attempt.
The BI may be used for example in network overload situations.
3GPP Message Analyser – 2G, GSM, 3G, UMTS, 4G, LTE message decoding and encoding
A part of the total downlink system bandwidth, which ts24.08 further subdivided into a number of sub-bands. Binary Phase Shift Keying modulation. A modulation scheme conveying one bit per symbol, whereby the values of tw24.008 bit are represented by opposite phases of the carrier. The entity in a radio access network responsible for radio trans- mission and reception in one or more cells to and from the UE.
Base Station Identification Code. A 6-bit code which allows a mobile station to distinguish between different neighbouring GSM base stations. The base station in a GSM system. A measure of the width of a range of frequencies, measured in Hertz.
The ratio between the power of the Radio Frequency RF carrier bearing the wanted signal and the total power of interfering signals. The process by which the network decides whether or not to admit a new call.
Constant Amplitude Zero Auto-Correlation. A property exhibited by certain sequences, such as Zadoff-Chu ZC sequences, whereby the sequences have constant amplitude and zero circular fs24.008 at all points except zero lag. A buffer in which data is read in and out cyclically, such that when the end of the buffer is reached the process continues at rs24.008 beginning.
This may include emergency public warnings. A service analogous to Teletex, which broadcasts unacknowledged messages to all mobile terminals within a particular region.
A type of Forward Error Correction FEC code in which k input bits to be encoded are fed into a shift register with a number stages corresponding to the memory of the CC, and n output bits are taken from the shift register as a linear combination of the content of the shift register.
In LTE, a logical channel used to deliver control information in both uplink and downlink directions during connection establishment. China Communications Standards Association. A form of transmit diversity whereby a different phase shift is applied to each Orthogonal Frequency Division Multiplexing OFDM subcarrier on at least one of the multiple transmit antennas from which the subcarrier is transmitted, thereby increasing the frequency selectivity of the radio channel.
In the time domain this is equivalent to introducing a delay which is cyclic because it is applied before insertion of the Cyclic Prefix CP. A type of channel model in which the received signal is composed of a number of separate delayed clusters. A method of multiplexing different data sig- nals by means of different codes, rather than different frequencies or timeslots.
The codes used for different signals may be orthogonal to each other, or may be pseudo-random. They have a wider bandwidth than the data signals. Code Division Multiple Access. A scheme allowing multiple users to access a given radio channel by the use of CDM to multiplex the data signals of the different users. The coupling network allows Radio Frequency RF common mode current disturbance signals through the various conductors to the equipment under test, while the decoupling network is designed to handle signals emitted by the equipment under test.
Referring to the random access procedure, CF is an access mode in which only one user has permission to access a given transmission resource. This is in contrast to contention-based random access, where multiple users may transmit a signal in the same time-frequency resources, and a contention resolution procedure is then required to separate the different users.
Referring to turbo-code interleaver design, CF describes an interleaver in which the turbo-decoder can operate to perform the necessary exchanges of mutual in- formation between the consitutent decoders without reading and writing from the same memory block at the same time.
The difference between a reference frequency and the frequency of a received Radio Frequency RF carrier. Typically the reference frequency is 3gpp by a local oscillator in the radio receiver. Challenge Handshake Authentication Protocol. Up to 3tpp CIDs are available. The CID is transmitted together with the compressed headers and feedback information. The ratio between the power of the Radio Frequency RF carrier bearing the wanted signal and the total power of interfering signals and thermal noise.
The time-domain complex signal received at the output of a radio propagation channel in response to the transmission of a single signal impulse of vanishingly short duration. It provides information on the power, phase and delay of the different paths of the channel.
Ciphering Key Sequence Number. In a UMTS authentication challenge, the CKSN enables the network to verify the instance of the ciphering te24.008 and integrity key which are stored in the mobile terminal without invoking the authentication procedure. The CM of a given signal is a measure of the transmit power de-rating needed to enable a Power Amplifier PA to transmit the signal com- pared to the de-rating required for transmission of a reference signal for the same Adjacent Carrier Leakage Ratio ACLR.
The CM characterizes the effects of the third-order cubic non-linearity of the PA. Comprises the functions executed by the eNodeB to manage mobility and handover in both idle and connected modes. If all the column vectors in the matrix have equal magnitude, the matrix is said to possess the constant modulus property.
The part of the 3GPP system which is independent of the connection technology e. The terminals connect to the core network via the access network which is RAT-specific. Coded Orthogonal Frequency Division Multiplexing. A set of samples which are duplicated from the end of a transmitted symbol and appended cyclically to the beginning of the symbol.