LG VX8500 Service Manual page 126

VX8500
Layer 2. Layer 2 provides for the correct transmission and reception of signaling messages, including partial
duplicate detection. See also Layering and Layer 3.
Layer 3. Layer 3 provides the control of the Cellular telephone systems. Signaling messages originate and
terminate at layer 3. See also Layering and Layer 2.
Local Control. An optional mobile station feature used to perform manufacturer-specific functions.
2
A PN sequence with period 24 -1 that is used for scrambling on the Forward CDMA Channel and spreading on
the Reverse CDMA Channel. The long code uniquely identifies a mobile station on both the Reverse Traffic
Channel and the Forward Traffic Channel. The long code provides limited privacy. The long code also
separates multiple Access Channels on the same CDMA channel. See also Public Long Code and Private Long
Code.
Long Code Mask. A 42-bit binary number that creates the unique identity of the long code. See also Public
Long Code, Private Long Code, Public Long Code Mask, and Private Long Code Mask.
LSB. Least significant bit.
Maximal Length Sequence (m-Sequence). A binary sequence of period 2n-1, n a positive integer, with no
internal periodicities. A maximal length sequence can be generated by a tapped n-bit shift register with linear
feedback.
Mcps. Megachips per second (10 6
chips per second).
Mean Input Power. The total received calorimetric power measured in a specified bandwidth at the antenna
connector, including all internal and external signal and noise sources.
Mean Output Power. The total transmitted calorimetric power measured in a specified bandwidth at the
antenna connector when the transmitter is active.
Message. A data structure that conveys control information or application information. A message consists of a
length field (MSG_LENGTH), a message body (the part conveying the information), and a CRC.
Message Body. The part of the message contained between the length field (MSG_LENGTH) and the CRC
field.
Message Capsule. A sequence of bits comprising a single message and padding. The padding always follows
the message and may be of zero length.
Message CRC. The CRC associated with a message. See also Cyclic Redundancy Check.
Message Field. A basic named element in a message. A message field may consist of zero or more bits.
Message Record. An entry in a message consisting of one or more field that repeats in the message.
MHz. Megahertz.(10 6
Herz)
MIN. See Mobile Station Identification Number.
Mobile Protocol Capability Indicator (MPCI). A 2-bit field used to indicate 속 mobile station's capabilities.
Mobile Station. A station in the Domestic Public Cellular Radio Telecommunications Service intended to be
used while in motion or during halts at unspecified points. Mobile station include portable units (e.g., handheld
personal units) and units installed in vehicles.
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