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參數資料
| 型號： | CPORTDSLAM-FS |
| 英文描述： | Application Fact Sheet: Access Multiservice DSLAM |
| 中文描述： | 應用概況：多業務接入DSLAM的 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 138K |
| 代理商： | CPORTDSLAM-FS |
KEY BENEFITS
Single “platform”
architecture for low-end
to high-end wireless
infrastructure devices
Comprehensive Wireless
Network Interface (WNI)
reference applications
available for a big jump-
start on development
Minimize risk as
standards evolve due to
software programmable
nature
Software reuse enables
greater reliability of
software and greater
development productivity
for OEMs
True, fine-grained
multiservice support for
high numbers of users
OVERVIEW
Telecommunications is undergoing extensive change as
media convergence, industry consolidation, Internet and
IP technologies, and mobile communications come
together. As data transmission in cellular systems has
become more important, the push for future systems that
are more data ready (that is, packet-capable) has led to
the establishment of third generation (3G) standards.
However, the cost and delay of deploying the full 3G
standards, such as UMTS and CDMA2000, has spurred
the development of more incremental standards for data
transmission over legacy systems. These are generally
referred to as 2.5G. This technology is expected to pre-
cede widespread deployment of the 3G systems.
With the convergence and evolution of the wireless
infrastructure market, vendors are seeking solutions that
will enable them to support increased interworking and
evolution of protocols to minimize market risks.
DESIGN CHALLENGES
The wireless infrastructure is rapidly trying to adapt to a
data-oriented world, and consequently 2.5G/3G system
design embodies the following issues:
Rapidly emerging standards combined with shortened
time-to-market requirements.
Terminating and converting multiple protocols and
interworking among protocols
Large cost of deployment, driving strategies for risk
abatement around upgrades and extensions
Need for common communications technology at
widely disparate bandwidths (T1 to OC-48c)
Difficulty of upgrading existing products designed
using ASICs or ASSPs with microprocessors (costly
and long development cycle)
MOTOROLA
SOLUTION
Motorola’s C-Port
network processor (NP) family is well
suited to serve as a base architectural platform for
wireless infrastructure devices, such as base transceiver
stations (BTSs), base station controllers (BSCs), and
mobile switching centers. The C-Port family provides the
programming flexibility to adapt to changing wireless
standards and offers various options to address func-
tional, cost, power, environmental, and density require-
ments for a range of devices. In addition, the software is
scalable across the C-Port network processors so that
you can reuse your software base in all levels of systems,
whether downstream at the BTS or upstream to switch-
ing centers
—
building software reliability along the
way. This Application Fact Sheet specifically addresses
BSC design.
Both Motorola
’
s C-3e
NP and C-5e
NP are ideal
for BSCs, as they are programmable for virtually any
network interface and protocol, and they provide high-
functional integration including built-in classification and
traffic management capabilities. A key difference is that
the C-3e NP supports up to 3Gbps bandwidth and the
C-5e NP supports up to 5Gbps bandwidth.
Both NPs provide comprehensive protocol support for the
wireless infrastructure, including:
ATM: AAL-2, AAL-2 SSSAR, AAL-5 MPE, IMA
PPP: Multi-Class, Multi-Link, PPP-Mux
QoS: ATM TM 4.1 and DiffServ in software
IP: IPv4, IPv6, UDP, RTP, header compression, L4 port
classification
T1/E1 framer connection, Ethernet, and OC-3/STM-1
Application Fact Sheet
ACCESS
2.5G/3G WIRELESS BASE
STATION CONTROLLER
NETWORK INTERFACE
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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