Cable, Connector, and Combiner Losses (Transmitter) (dB):
The combined losses of all transmission system components between the transmitter output and the antenna input (all losses in positive dB values).
Cable, Connector, and Splitter Losses (Receiver) (dB):
The combined losses of all transmission system components between the receiving antenna output and the receiver input.
CAC (Connection Admission Control):
A set of measures taken by the network to balance between the QoS requirements of new connections request and the current network utilisation without affecting the grade of service of existing/already established connections.
a logical association between several users (this could be connection oriented or connection less).
The modulated waveform conveying the E-UTRA, UTRA or GSM/EDGE physical channels
center frequency of the cell
Camped on a cell:
The UE is in idle mode and has completed the cell selection/reselection process and has chosen a cell. The UE monitors system information and (in most cases) paging information. Note that the services may be limited, and that the PLMN may not be aware of the existence of the UE within the chosen cell.
A piece of information which indicates general 3GPP System mobile station characteristics (e.g. supported radio interfaces,...) for the interest of the network.
A link between the card and the external world starting with the ATR and ending with a subsequent reset or a deactivation of the card.
CBS DRX cycle:
The time interval between successive readings of BMC messages.
Radio network object that can be uniquely identified by a User Equipment from a (cell) identification that is broadcasted over a geographical area from one UTRAN Access Point. A Cell is either FDD or TDD mode.
Cell Radio Network Temporary Identifier (C-RNTI):
The C-RNTI is a UE identifier allocated by a controlling RNC and it is unique within one cell controlled by the allocating CRNC. C-RNTI can be reallocated when a UE accesses a new cell with the cell update procedure.
Cellular Text telephone Modem (CTM):
A modulation and coding method intended for transmission of text in voice channels for the application of real time text conversation.
The RF bandwidth supporting a single RF carrier with the transmission bandwidth configured in the uplink or downlink of a cell. The channel bandwidth is measured in MHz and is used as a reference for transmitter and receiver RF requirements.
The lowest and highest frequency of the carrier, separated by the channel bandwidth.
An activity utilising telecommunications network infrastructure and related services for user to user communication (e.g. a single call, a data communication session or a short message), or for user to network communication (e.g. service profile administration), or for inter-network communication (e.g. transferring calls, signalling, or short messages), or for mobility (e.g. roaming or inter-system handover), which the network operator wants to charge for. The cost of a chargeable event may cover the cost of sending, transporting, delivery and storage. The cost of call related signalling may also be included.
A user involved in a chargeable event who has to pay parts or the whole charges of the chargeable event, or a third party paying the charges caused by one or all users involved in the chargeable event, or a network operator.
A function whereby information related to a chargeable event is formatted and transferred in order to make it possible to determine usage for which the charged party may be billed.
Charging Data Record (CDR):
A formatted collection of information about a chargeable event (e.g. time of call set-up, duration of the call, amount of data transferred, etc) for use in billing and accounting. For each party to be charged for parts of or all charges of a chargeable event a separate CDR shall be generated, i.e more than one CDR may be generated for a single chargeable event, e.g. because of its long duration, or because more than one charged party is to be charged.
A code used in conjunction with a security algorithm to encode and decode user and/or signalling data.
A group with a pre-defined set of members. Only defined members may participate in a closed group.
Closed Subscriber Group (CSG):
A Closed Subscriber Group identifies subscribers of an operator who are permitted to access one or more cells of the PLMN but which have restricted access (CSG cells).
Coded Composite Transport Channel:
A data stream resulting from encoding and multiplexing of one or several transport channels.
A Channel not dedicated to a specific UE.
The avoidance of disclosure of information without the permission of its owner.
Connected mode is the state of User Equipment switched on and an RRC connection established.
A communication channel between two or more end-points (e.g. terminal, server etc.).
The type of association between two points as required by the bearer service for the transfer of information. A bearer service is either connection-oriented or connectionless. In a connection oriented mode, a logical association called connection needs to be established between the source and the destination entities before information can be exchanged between them. Connection oriented bearer services lifetime is the period of time between the establishment and the release of the connection. In a connectionless mode, no connection is established beforehand between the source and the destination entities; the source and destination network addresses need to be specified in each message. Transferred information cannot be guaranteed of ordered delivery. Connectionless bearer services lifetime is reduced to the transport of one message.
Connectionless (for a bearer service):
In a connectionless bearer, no connection is established beforehand between the source and the destination entities ; the source and destination network addresses need to be specified in each message. Transferred information cannot be guaranteed of ordered delivery. Connectionless bearer services lifetime is reduced to the transport of one message.
A service which allows the transfer of information among service users without the need for end-to-end call establishment procedures (source: ITU-T I.113).
Continuous phenomena (continuous disturbance):
Electromagnetic disturbance, the effects of which on a particular device or equipment cannot be resolved into a succession of distinct effects (IEC 60050-161 ).
A logical channel that carries system control information.
A role an RNC can take with respect to a specific set of UTRAN access points. There is only one Controlling RNC for any UTRAN access point. The Controlling RNC has the overall control of the logical resources of its UTRAN access point's.
An interactive service which provides for bi-directional communication by means of real-time (no store-and-forward) end-to-end information transfer from user to user (source: ITU-T I.113).
An architectural term relating to the part of 3GPP System which is independent of the connection technology of the terminal (eg radio, wired).
Core Network Operator:
Operator that offers core network services.
Code which when combined with the network and SP codes refers to a unique Corporate. The code is provided in the GID2 file on the (U)SIM (see Annex A.1.) and is correspondingly stored on the ME.
Corporate code group:
combination of the Corporate code and the associated SP and network codes.
Allows a corporate customer to personalise MEs that he provides for his employees or customers use so that they can only be used with the company's own (U)SIMs.
Coverage area (of a mobile cellular system):
An area where mobile cellular services are provided by that mobile cellular system to the level required of that system.
Area over which a 3GPP System service is provided with the service probability above a certain threshold.
A cell, part of the PLMN, broadcasting a specific CSG Identity. A CSG cell is accessible by the members of the closed subscribers group for that CSG Identity. All the CSG cells sharing the same identity are identifiable as a single group.
CSG Identity (CSGID):
An identity broadcast by a CSG cell or cells and used by the UE to facilitate access for authorised members of the associated Closed Subscriber Group.
An indication transmitted on the broadcast channel of the CSG cell that allows the UE to identify such as CSG cell.
A CSG manager can, under the operator's supervision, add, remove and view the list of CSG members.
The latest MF or DF selected on the UICC.
The latest EF selected.
Current serving cell:
This is the cell on which the MS is camped.