LG LG-UD90c, Service Manual

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LG-KG90C
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Half Frame. A 10 ms interval on the paging Channel. Two half frames comprise a frame, the first half
frame begins at the same time as the frame.
Handoff. The of transferring communication whth a station mobile station from one base station to
another.
Hard Handoff. A handoff characterized by a temporary disconnection of the Traffic Channel. Hard
handoffs Occur when the mobile station is transferred between disjoint Active Sets, the CDMA
frequency assignment changes, the frame offset changes, or the mobile station is directed from a
CDMA Traffic Channel to an analog voice channel, See also Soft Handoff.
Hash Function. A function used by the mobile station to select one out of N available resource. The
hash function distributes the available resources uniformly among a random sample of mobile
stations.
HLR. See Home Location Register.
Home Location Register (HLR). The location register to which a MIN is assigned for record
purposes such as subscriber information.
Home System. The cellular system in which the mobile station subscribes for service.
Idle Handoff . The act of transferring reception of the Paging Channel from one bass station to
another, when the mobile station is in the Mobile Station Idle State.
Implicit Registration. A registrationachieved by a successful transmission of an origination or page
response on the Access Channel.
Interleaving. The process of permuting a sequence of symbols.
kHz . Kilohertz (10
3
Hertz).
ksps. Kilo-symbols per second (10
3
symbols per second).
Layer 1 . See Physical Layer.
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.
A PN sequence with period 24
2
-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.
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