Table 15-1 Description of recommended frequency spectrum configuration
Item Planning Suggestion Planning Principle
Upstream
frequency
bandwidth
The upstream frequency
bandwidth ranging from 5 MHz
to 15 MHz is used to transmit
low-traffic data without strict
requirements on signal-to-noise
ratio (SNR), such as network
status monitoring, VoD, user
passwords, and program indexes.
l Plan the upstream frequency
bandwidth for the cable TV (CATV)
service to support the services that
have been provisioned and those to be
provisioned.
l Plan continuous upstream frequency
bandwidths for the analog TV service,
digital TV service, and data over cable
service interface specification
(DOCSIS) data service to prevent
interference between the services. In
addition, the planning should facilitate
the system in handling the issues of a
service without affecting other
services.
The upstream frequency
bandwidth ranging from 16 MHz
to 65 MHz is used to transmit
upstream data.
Downstream
frequency
bandwidth
The downstream frequency
bandwidth ranging from 87 MHz
to 108 MHz is used to carry the
frequency modulation (FM)
broadcast service. The FM
frequency is 400 kHz. The
downstream frequency
bandwidth supports 52
frequency points.
The downstream frequency
bandwidth ranging from 111
MHz to 1 GHz is used to carry
the analog TV service, digital
service, and DOCSIS data
service. In the range from 111
MHz to 1 GHz:
l 111 MHz to 550 MHz: analog
TV service
l 550 MHz to 750 MHz: digital
TV service
l 750 MHz to 1 GHz: DOCSIS
data service
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide
15 OptiCable D-CMTS Configuration (MA5633 Working as
a Remote Extended Frame)
Issue 01 (2014-04-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1525
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