Networking Infrastructure Markets

Transcription

1 Module Introduction PURPOSE: To discuss the target markets and applications for the MSC8101. OBJECTIVES: Describe the use of the MSC8101 in EDGE and 3G wireless baseband applications. Describe the use of the MSC8101 in wireless infrastructure transcoding applications. Describe the use of MSC8101 in Packet Telephony applications. CONTENT: 17 pages 3 questions LEARNING TIME: 25 minutes In this module, we will discuss the target markets and applications for the MSC8101. This product is used in the baseband and transcoding applications in EDGE and 3G wireless infrastructure systems. We will also discuss Freescale's complete hardware and software solution for the packet telephony market.

2 Networking Infrastructure Markets Internet Service Providers IP Network G3 FAX MODEM Narrowband Access Networks RAC (ISP) ACCESS EXCHANGE G3 FAX MEDIA GATEWAY Circuit 2.5G MODEM H.323 TERMINAL WORK STATION IP/ATM Telephony SERVER Narrowband - Broadband Gateway ATM/IP SWITCH MSC BSC Wireless Infrastructure BTS Node B DSLAM Packet MSC RNC 3rd Generation Broadband Access Networks xdsl Modem IP Network Central Office Target Markets Let s begin with an overview of how networking s are used in the networking infrastructure markets. They are used in broadband access networks to route packet voice traffic from the DSLAM to circuit switched Class 4/Class 5 switches. Freescale s networking s provide protocol conversion between the circuit and packet networks. In media gateways, s handle the fax and data modem traffic, as well as speech coding and compression, and echo cancellation. The MSC8101 handles the modem traffic in remote access concentrators. They can also be used to offload modem data traffic and make circuit switched networks more efficient. They are used in 2G, 2.5G and 3G wireless infrastructure equipment to perform baseband and transcoding applications. In this module, we will focus on the wireless infrastructure baseband and transcoding applications, and packet telephony solution.

3 Baseband Processing 2.5G and 3G Wireless Markets Circuit 2.5G EDGE Packet Narrowband - Broadband Gateway ATM/IP SWITCH MSC MSC BSC BTS Wireless Infrastructure RNC 3rd Generation Node B The two key markets segments that the MSC8101 serves within the baseband processing market are the 2.5G EDGE and 3G wireless markets. The MSC8101 performs the baseband processing for the these markets as a part of the Base Transceiver Station (BTS). In 3G systems, the BTS is often called Node B. The BTS performs the following baseband functions: Separates received signals into channels by combining correct time slots or coded messages, Sends these signals to the Base Station Controller (BSC) for compression, Changes channels when directed by the BSC, and Converts channels back into analog, combines multiple channels,upconverts to IF, and filters and amplifies signals for transmission to mobile subscribers.

4 2.5G and 3G Market Requirements MSC8101 meets 2.5G and 3G requirements: Higher spectrum efficiency Higher data rates 10X to 300X increase in processing power over 2G Flexibility and programmability for evolving 3G standards Small footprint Low power consumption The next generation of wireless networks will mark a shift from traditional voice-centric service toward multimedia services. These new services will require much higher spectrum efficiency and data rates. s are at the heart of these systems, providing the necessary baseband processing to enable higher data rates. To provide these increased data rates, greater processing power is needed: at least a 10X increase for 2.5G and up to a 300X performance increase for 3G systems. The increasing need for global networks calls for more programmability in the network air interface equipment. This allows the flexibility to cope with different 3G standards (Europe/Japan/US) and their evolution, using the same hardware. The MCS8101 provides this flexibility through software as it displaces ASICs and FPGAs. The MSC8101 also meets the low power and small footprint requirements of next generation systems. It provides the lowest cost, power consumption, and footprint per channel. StarCore Networking s are enabling the future of wireless communications.

5 MSC8101 Baseband Solution The MSC8101 is optimized for networking infrastructure applications. It has the unique abilities to connect to the network, manage the layer 2 and layer 3 protocols, and extract data directly from the network. The StarCore core delivers 1200 MMACS or 3000 RISC MIPS of usable performance. The MSC8101 extended SC140 core includes the EFCOP, which increases the device performance to 1500 MMACS. The onchip 32-bit RISC protocol machine allows connectivity to such standard network backbones as ATM, Fast Ethernet, and fast TDM highways. Shown above is a baseband processing solution for a Base Transceiver Station. The MSC8101 takes advantages of the StarCore s capabilities to perform both the chip rate and symbol rate baseband processing. Chip rate processing involves spreading and combining the signal, channel estimation, and symbol generation. Symbol rate processing involves interleaving and de-interleaving the signal, multiplexing and de-multiplexing, and channel encoding and decoding.

6 Question Which of the following functions does the baseband application perform? Select all that apply and then click Done. Compresses mobile user voices Separates received signals into channels Amplifies signals for transmission to mobile users Changes channels as directed by the Base Station Controller Let s review what we discussed so far with a question about next generation systems. Answer: The baseband application performs the following functions: Separates received signals into channels, Amplifies signals for transmission to mobile users, and Changes channels as directed by the Base Station Controller Note that the transcoding application compresses mobile user voices.

7 Transcoding Application Requirements Transcoding functions perform MIPS intensive operations, such as correlation and signal filtering. performance is an important factor Transcoding is usually implemented on multiple boards called farms. These boards have: Limited power dissipation budget Limited space budget Transcoding boards might interface with circuit networks (TDM based) and packet networks (usually IP or ATM based). The CPM on the MSC8101 enables direct network connectivity, so there is no penalty in board space or power dissipation. Let s continue with a look at Wireless Infrastructure transcoding applications. This is the solution for multi-channel voice processing in this market. The system requirements for the transcoding solution are described here. Transcoders require a lot of processing power. The transcoding function, which compresses and uncompresses mobile user voices, performs MIPS-intensive voice operations, such as correlation and signal filtering. performance is a critical decision factor when choosing the solution. The MSC8101 can perform 32 channels of AMR voice coding. Transcoders are usually implemented on a board containing multiple s, known as farms. Because these boards are built with many s, power consumption and footprint must also be considered when choosing a solution. The Communications Processor Module (CPM) on the MSC8101 allows direct connectivity to circuit and packet networks. Because no additional hardware is required, this also contributes to the low cost, low power dissipation, and low board space per channel of the MSC8101 in the transcoding application.

8 2.5G System Transcoding Application - Key Markets Switch or Backplane BTS TDM links to MSC Network encode Card to MSC G.711 decode AMR/EFR 64kbps 12.2 kbps Transcoder Board Network Card to BTS Base Station Controller MSC TDM links to BTS BSC 2nd Generation 2.5G Wireless Transcoder 3G System Switch or Backplane MSC RNC 3rd Generation Node B TDM links to PSTN Network encode Card to WAN/CN G.711 decode AMR/EFR 64kbps 12.2 kbps Transcoder Board Network Card to RNC Mobile Switching Center 155 Mbps ATM/SDHTu to RNC 3G Wireless Transcoder Transcoders are required in 2.5G and 3G wireless infrastructure systems. In 2.5G systems, the transcoder application is located in the Base Station Controller. It provides the voice processing function. It connects to the backplane, the Mobile Switching Center, and the Base Transceiver Station. In 3G systems, the transcoder application is located in the Mobile SwitchingCenter and provides the voice processing function; it connects to the Public Switched Telephone Network, or PSTN, and the Remote Network Controller. As the voice processor, the transcoder receives uncompressed voice data from the MSC, 64 kbps for each voice channel. It then compresses this voice data using a standard voice compression algorithm. To transmit voice over the air to the mobile, the voice data is compressed to 12.2 kbps for each channel, which is the mandatory bandwidth This compressed voice is then transmitted to the BTS. In reverse, from the mobile unit to the PSTN, the voice processing function decompresses the 12.2 kbps voice received from the mobile to adapt it to the 64 kbps standard data rate used within PSTN. Note that when Network transmission delays are too long, the voice processor performs voice echo-cancellation in addition to voice compression and decompression.

9 Transcoding Solution TDM Serial Backplane C-Port C-5 PCI Bus 64 Packetized Network Interface Network I/F (CPM) Control functions Data distribution Pre/Post processing 60x PPC to PCI Bridge System Bus Interface 64 HI16 CPM MSC8101 Latch 60x 60x MPC /64 Communications Processor SDRAM Memory CPM MSC8101 CPM CPM HI16 MSC x MSC8101 CPM HI16 60x HI16 MSC8101 CPM 60x CPM HI16 MSC x MSC8101 CPM HI16 60x HI16 MSC8101 CPM 60x HI16 MSC x HI16 60x 32/64 32 Media Farm Voice Fax Data Optional SDRAM (for V.9x) Freescale offers a complete hardware solution for the wireless transcoding market. The C-Port C-5 network processor provides the interface to the packetized network. The MSC8101 can act as the aggregator, performing control functions and distributing data to the farm. PowerPC microprocessors are used to interface to the System Bus and the System Host Processor. An array of MSC8101 devices perform the transcoding application.

10 Question How many channels of 12.2 Kbps channel AMR vocoding could be performed by a bank of eight MSC8101s? Click on your choice. a) 32 b) 128 c) 256 d) 512 Here s another question for you. Answer: A bank of eight MSC8101s could perform 256 channels of 12.2 Kbps AMR channel vocoding.

11 Packet Telephony Remote Access Market G3 FAX Packet Network RAC (ISP) ACCESS EXCHANGE Circuit Full Modem (V.92,V.34) termination:data extracted, VOIP(G.7xx),FOIP(T.30/T38) IP Voice IP FAX IP Data The last market we will examine is the packet telephony market. This market is served by the MSC8101 solution in three key areas. The Remote Access Market builds modem banks which are purchased by Internet Service Providers. These require a multi-channel modem solution with Carrier Class V.92. The MSC8101 can perform 20 channels of a V.92 modem.

12 Packet Telephony Enterprise Market Packet Network RAS Layer 3 Switch LAN Switch ROUTER voice, fax, modem relayed in H.323 packets VOIP (G7xx),FOIP (T.30/T38),V.MOIP (Type 0-3) IP Voice IP FAX IP Modem The Enterprise market provides telephony equipment to large office buildings and other customers requiring hundreds of channels. This enables them to save much on their charges for phone service, fax, and network connectivity.

13 Packet Telephony Trunk Replacement Market Trunk Gateway Packet Trunk Gateway G711 voice fax Modem carried in Packets/ATM Cells using AAL1,2 & 5 IP/ATM PCM Voice PCM FAX PCM Modem Since the early 90's, the convergence of voice and data on the PSTN has driven demand for an efficient homogeneous mechanism that can transport media from point to point. Packet based trunking gateways, using ATM and IP schemes to ensure QOS and reliability, have emerged to service this requirement at the core of the network. Through implementation of voice packetization techniques and data encapsulation protocols, the MSC8101 ensures seamless transition from the traditional circuit switched TDM schemes.

14 Freescale Turn-key Packet Telephony Solutions Supported by Multi-Protocol, Multi-Channel Framework Vocoders G.729/A/B/E G.728 G.723.1A G.727 G.722 G.726 G.711 FR, EFR AMR Echo Canceller s G.168 G.165 Telelphony events DTMF Relay RFC2833 R1/R2/MFC Discriminator Network Tools I Adaptive Jitter Buffer, PLC VAD/CNG, RTP/RTCP Audio Conferencing Mixing TDM Data Pumps V.17 V.21 V.27 ter V.34 HD V.29 Termination Protocol T.30 T.31 T.32 Relay T.38 I FRF. 11 GSM 3.45 Modem Data Pumps V.92D V.8 bis V.92 AoD V. MoIP Fallbacks Error Correction V.42 MNP2-4 Data Compression V.44 V.42 bis MNP5 Framing HDLC for PPP V.120 V.110 UDP/IP AAL1,2,5 FRF.11 L2TP The packet telephony market requires a solution that can process multiple channels of communications standards for voice, fax and modem. Where applicable, these should be ITU-compliant. As the aggregator, the MSC8101 must efficiently manage the numerous streams of voice, fax, or modem media going to and coming from the farm. It constantly maintains a database of which packets are mapped to each individual s and timeslots. It also provides the high throughput parallel connection on one side to the farm, while on the other side it provides the pipe to the fast ethernet or ATM Physical layer. As a farm, the MSC8101 supports multiple channels of voice compression, real time fax, and data modem relay or termination. It also performs the necessary packet communication protocols, such as V.42 error correction, jitter buffer, voice activity detection, and voice/fax/data discrimination. As a network enabled, it is particularly suitable for Layer 2 communications tasks, such as ATM Adaption Layer (AAL) 1, 2, and 5, High Level Data Link Control (HDLC), and Layer 2 Tunneling Protocol (L2TP).

15 Packet Telephony Hardware Challenge Packet MC -5 Network Router Media Gateway control+ Security Network Router Aggregator MSC8101 or MPC74xx PowerPC Aggregator TDM IF Aggregator TDM IF m m MSC8101 m MSC8101 MSC8101 Smart Networks Platforms Circuit TDM Interface m m m m Key Metrics Features Density/ch Power/ch Cost/ch Freescale offers complete end-to-end hardware solutions for the Packet Telephony market. The C-Port C-5 network processor provides the high throughput interface to the packetized network, which can support up to 5 Gbps of full Duplex Media traffic. This can be configured in multiple way, such as a single OC-48 or as 16 Fast Ethernet connections. The PowerPC microprocessors are used to interface to the system bus and as the system host processor. As we discussed earlier, the MSC8101 can act as the aggregator, performing control functions and distributing data to the farm. Implemented as a Farm, an array of MSC8101 devices can perform the media processing function. Note that this configuration could also use shared or dedicated external SDRAM memory, as necessary. Each in the array can support up to 60 channels of universal port solution. It can also detect and process multiple channels of voice/fax or modem simultaneously. The network-enabled MSC8101 is equally suited as an interworking solution in packet-topacket or packet-to-tdm architectures.

16 MSC810X Transcoding/VoIP Partners Speech/Fax Coders Data Modems Stacks Networking Protocol Drivers Freescale has teamed with a strong array of software developers to bring complete Packet Telephony solutions to market. Fax and speech software is provided by Surf Communications, Signals and Software, Ltd, Trinity Convergence, and Delphi Communication Systems. Data modems are provided by Lake Communications and Surf. Hughes Software Systems, Wind River, OSE, and Lineo provide Networking Protocol Stacks. Aisys provides drivers for the MSC8101.

17 MSC8101 Packet Telephony Solution Market Requirements Requirements MSC8101 Solution Low cost per Channel Maximum channel density basic voice channels/8101 ($/channel) Low cost 20 V.92 Universal channels/8101 Low power dissipation per channel Low power dissipation 500 mw (mw/channel) 5.1 mw/basic voice channel 30 mw/v.92 Universal channel Board space/channnel Small outline package 17x17 mm package (mm 2 /channel) 4 mm 2 /basic voice channel 18 mm 2 /V.92 Universal channel Easy connection to TDM Integrated TDM links and integrated fast Interface Flexibility and IP networks Ethernet interface Software solutions Software portfolio Extensive 3rd Party software offering Let's review the market requirements for the packet telephony application and how the MSC8101 meets those requirements. The channel densities used here are calculated using a basic voice packet telephony system or a V.92 Universal Port packet telephony solution. The MSC8101 can implement from 86 to 56 channels of a basic voice system. For simplicity, figures given here use 72 channels. Alternatively, 20 channels of a V.92 modem packet telephony system can be performed on an MSC8101. Cost per channel is an important consideration. To minimize cost, a high-performance capable of performing many channels is necessary. Power dissipation per channel should also be minimized, so the power consumption of the is critical. Over 72 basic voice channels, the MSC8101 dissipates 5.1 mw/channel. Footprint per channel is also important, and again, this should also be minimized. In the 17x17 mm package, the MSC8101 requires 4 square millimeters per basic voice channel. This voice processing card must interface to the backplane and the circuit and packet networks. The CPM integrated onto the MSC8101 offers direct connectivity to a variety of interfaces. The CPM is covered in depth in the Networking Derivatives module of this course.

18 Question What is the power dissipation per channel for Freescale s V.92 Universal packet telephony solution implemented on an MSC8101? Click on your choice. a) 30 mw per channel b) 18 mw per channel c) 5.1 mw per channel d) 4 mw per channel Consider this question about packet telephony solutions. Answer: In Freescale s V.92 modem packet telephony solution on an MSC8101, the power dissipation is 30 mw per channel.

19 Module Completion Networking target markets MSC8101 in the baseband application for 2.5G and 3G wireless infrastructure systems MSC8101 in the transcoding application for wireless infrastructure systems Freescale s MSC8101 Packet Telephony Solution This concludes our discussion on the target markets for Networking s. The areas we focused on are the wireless baseband applications, wireless infrastructure transcoding applications, and packet telephony applications. The MSC8101 performs the baseband application in the Base Transceiver Stations in 2.5G and 3G Wireless Infrastructure Systems. The MSC8101 performs the transcoding function in the BSC in 2.5G systems and in the MSC in 3G systems. It can also be used as the control processor, manage the transcoder s, and interface to the networks. Freescale provides a complete solution based on the MSC8101 for the packet telephony market.