Glossary:

ATIS Telecom Glossary

Search Keyword By: C

Select a term name to open its entry and any media references. Longer definitions end with a “Read More” link.

cell delineation

The identification of the asynchronous transfer mode (ATM) cell boundaries within a cell stream. [T1.646-1995]

cell header

Asynchronous transfer mode (ATM) layer protocol control information that precedes user data. [After T1.627-1993]

cell loss ratio

1. In a network, the ratio (1-x/y), where: y is the number of cells that arrive in an interval at the ingress of the network; and x is the number of these y cells that leave at the egress of the network. [T1.627-1993]
2. In a network element, the ratio (1-x/y), where y is the umber of cells that arrive… (Read More →)

cell relay

A statistically multiplexed interface protocol for packet switched data communications that uses fixed-length packets, i.e., cells, to transport data.
Note 1: Cell relay transmission rates usually are between 56 kb/s and
1. 544 Mb/s, i.e., the data rate of a DS1 signal.
Note 2: Cell relay protocols (a) have neither flow control nor error correction capability, (b) are information-content independent,… (Read More →)

cellular mobile

A mobile communications system that uses a combination of radio transmission and conventional telephone switching to permit telephone communication to and from mobile users within a specified area.
Note: In cellular mobile systems, large geographical areas are segmented into many smaller areas, i.e., cells, each of which has its own radio transmitters and receivers and a single controller interconnected with… (Read More →)

cellular technology

In telephony, a generic term for all wireless phones, regardless of the technology they use; the term derives from cellular base stations that receive and transmit calls. Both cellular and PCS phones use cellular technology. [After the FCC]
Note: The strategically placed rf base stations have limited, usually overlapping coverage areas (cells) that serve to connect mobile, usually small handheld… (Read More →)

Showing 191–200 of 997 results