UBS CMMB multiplexer (Model: CMMB6000E) is the world first commercial CMMB multiplexer, It also is the world one of the most popular CMMB multiplexer.
The multiplexers have been sold to China, USA, France Germany and Italia.
Model: CMMB6000E
Product Highlights
· CMMB Multiplex Frame generation compliant
to the Mobile
Multimedia Broadcasting specifications
· One or two frequencies, user configurable
Upgradeable to up to 6 frequencies
· Up to 160 services
· IPv4 and IPv6 support
· Control Information Table generation: NIT, CMCT,
CSCT, SMCT,
SSCT, ESG Basic Description Table, Urgent Broadcast Table
and Conditional Access Table
· Bandwidth: 8 MHz
· Three modes of interleaving
· LDPC Code Rate: ½ and ¾
· Internal GPS
· Hot Swapping between Main and Backup Unit
Standards Compliance
· Mobile Multimedia Broadcasting Part 1: Framing
Structure, Channel Coding
and Modulation for Broadcasting Channel, CMMB
· Mobile Multimedia Broadcasting Part 2: Multiplexing,
CMMB Technical
Working Group
· Mobile Multimedia Broadcasting Part 3: ESG Guide
· Mobile Multimedia Broadcasting Part 4: Urgent
Broadcast
· Mobile Multimedia Broadcasting Part 5: Data
Broadcast
· Mobile Multimedia Broadcasting Part 6: Conditional
Access
· Mobile Multimedia Broadcasting System Multiplexer
Technical requirement V2.10
· Mobile Multimedia Broadcasting System: Encryption
& Authorization
Multiplexing V2.01
· H.264 Final Draft, ISO/IEC 14496-10AVC
· Internet Protocol, RFC 0760
· Internet Protocol, Version 6 (IPv6), RFC 2460
· User Datagram Protocol, IEN-88
· RTP: Transport Protocol for Real-Time
Applications, RFC 3550
· SDP Session Description Protocol, RFC 2327
· RTP Payload Format for H.264 Video, RFC 3984
· RTP Payload Format for AC-3 Audio, RFC 4184
· RTP Profile for Audio and Video Conferences with
Minimal Control, RFC 1890
· ISO/IEC 13818-1
Product Description
Multiplexing is used for encapsulation of multiple Audio, Video, and Data
services and Control information in Multiplex Frames (MMB Part 1, 2).
The main functions of the multiplexer are to receive the incoming data, prepare
control and service information tables, encapsulate the data in frames
depending on the data type and classification criteria, schedule time slots
maintaining appropriate FIFO levels, and distribute the service and control
tables multiplex in the MPEG-2 TS packets to the modulators through the
ASI interface.
The multiplexer can be used in two possible cases. At the head end as a central
multiplexer of global services, multiplexing simultaneously one or two networks
(1), or locally as a multiplexer of local content (2). The multiplexer is
designed to satisfy the requirement in both modes and operate in any one of
them with minimal configuration.
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