Configuring S-Cdma Active Codes; Configuring S-Cdma Codes Per Minislot - Motorola BSR 2000 Configuration And Management Manual

BSR 2000 Configuration and Management Guide
The existing time stamp mechanism is not sufficient for synchronizing these new
frames so an additional level of synchronization is added called a timestamp snapshot.
This information contains the frame number, mini-slot number, and time stamp.
Timestamp snapshot information is conveyed in the SYNC and UCD messages.
The following additional configuration procedures are required for an S-CDMA
logical channel:

Configuring S-CDMA Active Codes

S-CDMA channels support the configuration of the number of active codes allowed
for an S-CDMA channel type. The active codes value must be a non prime number.
Increasing the number of allowed active codes provides more transmission channel
capacity. Reducing the number of active codes takes advantage of the S-CDMA
spreader processing gain at the expense of channel capacity.
Use the cable upstream active codes command, in Cable Interface Configuration
mode, to specify the number of active codes allowed for an S-CDMA channel type, as
shown below:
MOT(config-if)#cable upstream <X/Y> active codes <64-128>
where:

Configuring S-CDMA Codes Per Minislot

S-CDMA channels support the configuration of the number of active codes allowed
for each minislot. The number active codes allowed for each minislot determines the
minislot capacity
Use the cable upstream codes-minislot command, in Cable Interface Configuration
mode for the S-CDMA channel, to specify the number of active codes per minislot, as
shown below:
MOT(config-if)#cable upstream <X/Y> codes-minislot <2-32>
where:
6-28
Configuring S-CDMA Active Codes
Configuring S-CDMA Codes Per Minislot
Configuring the S-CDMA Hopping Seed
Configuring the S-CDMA Spreading Interval
X/Y is the upstream port and logical channel number (0-3).
64-128 the total number of allowed active codes.
and sets the granularity of the upstream grants.
MGBI
Release 1.0
526360-001-00 Rev. B