LG-TM250
Channel.
Transmit Objective Loudness Rating(TOLR).
A perceptually weighted transducer gain of telephone
transmitters relation sound pressure at the microphone to voltage at a reference electrical termination. It is
normally specified in dB relative to one millivolt per Pascal. See IEEE Standard 269-1992, IEEE Standard
661-1979, CCITT Recommendation P.76 , and CCITT Recommendation. P.79
Unique Challenge-Response Procedure.
An exchange of information between a mobile station and a base
station for the purpose of confirming the mobile station’s identity. The procedure is initiated by the base station
and is characterized by the use of a challenge-specific random number(i.e., RANDU) instead of the random
variable broadcast globally(RAND).
Unique Random Variable(RANDU).
A 24-bit random number generated by the base station in support of the
Unique Challenge-Response procedure.
Universal Coordinated Time(UTC).
An internationally agreed-upon time scale maintained by the Bureau
International de l’Heure(BIH) used as the time reference by nearly all commonly available time and frequency
distribution systems i.e., WWW, WWVH, LORAN-C, Transit, Omega, and GPS.
UTC.
Universal Temps Coordine. See Universal Coordinated Time.
Voice Channel
. See Analog Voice Channel.
Voice Mobile Attenuation Code(VMAC).
A 3-bit field in the Extended Address Word commanding the initial
mobile power level when assigning a mobile station to an analog voice channel.
Voice Privacy.
The process by which user voice transmitted over a CDMA Traffic Channel is a afforded a
modest degree of protection against eavesdropping over the air.
Walsh Chip.
The shortest identifiable component of a Walsh function. There are 2
N
Walsh chips in one
Walsh function where N is the order of the Walsh function. On the Forward CDMA channel one Walsh chip
equals 1/1.2288MHz, or 813.802…ns. On the Reverse CDMA Channel, one Walsh chip equals 4/1.2288MHz,
or 3.255…
㎲
.
Walsh Function
. One of 2
N
time orthogonal binary functions (note that the functions are orthogonal after
mapping ‘0’ to 1 and ‘1’ to –1).
Zone-Based Registration
. An autonomous registration method in which the mobile station registers whenever it
enters a zone that is not in the mobile station’s zone list.
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.
Microsecond
LG Electronics Inc.
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