LG VX8500 Service Manual page 125

VX8500
channels, including the Pilot Channel, is no greater than 64.
Forward Traffic Channel. A code channel used to transport user and signaling traffic from the base station to
the mobile station.
A basic timing interval in the system. For the Access Channel, Paging Channel, and Traffic Channel, a frame is
20 ms long. For the Sync Channel, a frame is 26.666...ms long.
Frame Category. A classification of a received Traffic Channel frame based upon transmission data rate, the
Frame contents (primary traffic, secondary traffic, or signaling traffic), and whether there are detected error in
the frame.
Frame Offset. A time skewing of Traffic Channel frames from System Time in integer multiples of 1.25 ms.
The maximum frame offset is 18..75 ms..
Frame Quality Indicator. The CRC check applied to 9600 bps and 4800 bps Traffic Channel frames.
Global Positioning System (GPS). A US government satellite system that provides location and time
Information to users. See Navstar GPS Space segment / Navigation User interfaces ICD-GPS-200 for
Specifications.
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.
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