Huawei Airbridge BTS3606A Technical Manual page 33

Technical Manual
Airbridge BTS3606A CDMA Base Station
Forward Pilot Channel (F-PICH)
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It provides synchronization signals to the MSs operating in the BTS coverage.
Different from other channels, the F-PICH is an unmodulated spread spectrum
signal that is always in the transmitting status.
Forward Sync Channel (F-SYNCH)
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It provides the initial time synchronization information to MSs operating in the BTS
coverage.
Forward Paging Channel (F-PCH)
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It sends the system information and MS-specific message to the MSs operating in
the BTS coverage. Each CDMA channel in a sector can support seven paging
channels at most.
Forward Quick Paging Channel (F-QPCH)
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The BTS uses this channel to send the paging order and system configuration
change order to slotted-mode MSs, instructing them to receive the paging
messages. As a result, the MS battery energy is saved.
Forward Common Control Channel (CCCH)
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The BTS uses this channel to send system message and message to dedicated
MS.
The Forward Dedicated Channel is further divided into:
Forward Dedicated Control Channel (F-DCCH)
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It carries traffic information and signaling information between the MS and the
BTS.
Forward Fundamental Channel (F-FCH)
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It carries traffic information between the MS and the BTS.
Forward Supplemental Channel (F-SCH)
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It carries traffic information between the MS and the BTS. It is only applicable to
RC3, RC4 and RC5.
II. Reverse channel
The CDMA2000 1x forward channel includes Reverse Common Channel and Reverse
Dedicated Channel.
The Reverse Common Channel is further divided into:
Reverse Access Channel (R-ACH)
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The MS uses this channel to communicat e with the BTS and respond to paging
channel message.
4-5
System Description
Chapter 4 Main Functions