Chapter 5. Glossary - LG -YD6250 Service Manual

LG-YD6250

CHAPTER 5. Glossary

General Terms
Abbreviated Alert. An abbreviated alert is used to remind the mobile station user that previously
selected alternative routing features are still active.
AC. See Authentication Center.
Access Attempt. A sequence of one or more access probe sequences on the Access Channel
containing the same message. See also Access Probe and Access Probe Sequence.
Access Channel. A Reserve CDMA Channel used by mobile stations for communicating to the base
station. The Access Channel is used for short signaling message exchanges such as call origination's,
responses to pages, and registrations. The Access Channel is a slotted random access channel.
Access Channel Message. The information part of an access probe consisting of the message body,
length field, and CRC.
Access Channel Message Capsule. An Access Channel message plus the padding.
Access Channel Preamble. The preamble of an access probe consisting of a sequence of all-zero
frames that is sent at the 4800bps rate.
Access Channel Request Message. An Access Channel message that is autonomously generated
by the mobile station. See also Access Channel Response Message.
Access Channel Response Message. A message on the Access Channel generated to reply to a
message received from the base station.
Access Channel Slot. The assigned time interval for an access probe. An Access Channel slot
consists of an integer number of frames. The transmission of an access probe is performed within the
boundaries of an Access Channel slot.
Access Probe. One Access Channel transmission consisting of a preamble and a message. The
transmission is an integer number of frames in length and transmits one Access Channel message.
See also Access Probe Sequence and Access Attempt.
Access Probe Sequence. A sequence of one or more access probes on the Access Channel. The
same Access Channel message is transmitted in every access probe of an access attempt. See also
Access Probe and Access Attempt.
Acknowledgement. A Layer 2 response by the mobile station or the base station confirming that a
signaling message was received correctly.
Action Time. The time at which the action implied by a message should take effect.
Active Set. The set of pilots associated with the CDMA Channels containing Forward Traffic
Channels assigned to a particular mobile station.
Aging. A mechanism through which the mobile station maintains in its Neighbor Set the pilots that
have been recently sent to it from the base station and the pilots whose handoff drop timers have
recently expired.
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