tuesday, may 19, 2015©rim semiconductor company confidential and proprietary – do not distribute...

Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute

UPSTREAMDOWNSTREAM

RATIO (BANDPLAN) OPTIMIZED FOR VIDEO DELIVERY

The enabling technology behind the Cupria™ family of Transport

Processors is Internet Protocol Subscriber Line

10 POWER CHANNELSTAILORED TO MATCH COPPER

IMPEDENCE PROFILE

“IPSL”defines both the signal stream waveform and the encoding / decoding algorithms inside the transport processor chipsets

FRAMING OPTIMIZED FOR ETHERNET PAYLOAD

26 AWG COPPER

PACKET HEADERSOPTIMIZED TO REDUCE

VIDEO LATENCY


1) Reduced Jitter, Delay and Packet Loss

2) Lower Noise Floor – Improve Performance

3) Pure IP – Eliminate unnecessary overhead

4) Adaptive Noise Management

5) Reduce Latency – Smart “BER”

6) Configure for any combination of upstream and downstream

IPSL Working Group is in the process of being established

IPSL’s performance advantages include:


•

• Artifacts are additive and cannot be removed

• thus, Phy layer jitter & delay must be minimized for video

APPLICATION

PRESENTATION

SESSION

TRANSPORT

NETWORK

DATALINK

PHYSICAL

APPLICATION

PRESENTATION

SESSION

TRANSPORT

NETWORK

DATALINK

PHYSICAL

Reducing Jitter & Delay for HDTV Reducing Jitter & Delay for HDTV

fresh DSL thinking

• Artifacts get embedded at every layer of the protocol stack

DUPLICATE PACKETS

INTER-PACKET JITTER

OUT-OF-ORDER PACKETS

PACKET LOSS

• Cupria minimizes packet jitter & delay better than VDSL2:- inherent noise tolerance- dynamic noise management- higher % useable payload- superior QOS- reduced latency


CupriaTM

Reducing Jitter & Delay for HDTV Reducing Jitter & Delay for HDTV

fresh DSL thinking

• MPEG Artifacts with VDSL2

• Preserves Detail

• Renders Fast Motion

• Moving Background

• MotionPixilation

• Lost Detail


No

ise

Po

wer

VDSL2

Time

Lower Noise Floor - Increases PerformanceLower Noise Floor - Increases Performance

• Lowering the noise floor increases maximum bandwidth

• New RTs deployed within 3-5kft will have lower noise, Cupria uses a -150 dB noise floor versus -140dB PMO

- 140dB Constant SNR Floor

fresh DSL thinking

- Bandwidth Available

No

ise

Po

wer

Time

Cupria’s -150dB SNR Floor

- Bandwidth Available


Pure IP AccessPure IP Access

fresh DSL thinking

• Today’s typical DSL access loop

“Pure IP”

avoids 10% ATM cell tax

REMOTE TERMINAL (RT)

TRIPE-PLAY

IP GROOMING

AT THE CPE

ASSURES QOS

“Pure IP Backhaul”

avoids 10% ATM cell tax

& minimizes latency from

ATM conversion at the DSLAM

“Pure IP”

simplifies CO grooming to

eliminate ATM switchport costs

• Pure IP Access Plant

ATM-based CPEs

ATM Backhaul or

“ATM over IP” backhaulCO

Ethernet IPTV

Network

Ethernet IPTV

Network

INTERNETINTERNET

IP Network IP Network


Inherent Noise ToleranceInherent Noise Tolerance

To obtain short frames & symbols,we adopted Wideband Modulation

• Short frames needs less resend time in periods of bursty noise

fresh DSL thinking

No

ise

Po

wer

Time

DATA DATADATA DATA DATA DATA DATARESEND RESEND RESEND RESEND

No

ise

Po

wer

Time

DATARESEND RESEND

DMT uses Narrowband Modulation with long frames

DATA DATADATA DATA DATA DATA DATA

More payload survives using short frames


No

ise

Po

wer

VDSL2

Time

Time

No

ise

Po

wer

Adaptive Noise ManagementAdaptive Noise Management

• Short frame size also enables dynamic noise rejection, adaptive on-the-fly

DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA

CUPRIA™

Constant 140dB SNR Floor

Dynamic SNR RejectionLevel

UP TO 8 Db GAIN

fresh DSL thinking

Dynamic 150dB SNR Floor


Time

No

ise

Po

wer

Adaptive Noise ManagementAdaptive Noise Management

• Short frame size also enables dynamic noise rejection, adaptive on-the-fly

Dynamic SNR RejectionLevel

UP TO 8 Db GAIN

• Adaptive SNR performed at RECEIVER ONLY

• DSLAM Training NOT REQUIRED

• VDSL2 attempts Adaptive SNR called “Adaptive Bit Loading”

which requires DSLAM Training

fresh DSL thinking


“Smart BER” Reducing Latency“Smart BER” Reducing Latency

• four QOS levels vs only two in VDSL2

• Pre-emptive packet queing can reprioritize on sub framesinstead of waiting for complete super-frame

fresh DSL thinking

• Shorter frame size = faster pre-emptive packet queuing

• Shorter frame size = faster packet re-send

• Smart BER only re-sends hi-Q packets

• Triple-Play Grooming at the CPE

DATA VOICE DATA VIDEO VIDEO DATA VIDEO VOICE DATA VIDEO VIDEO DATA

• Short frames speed up the packet re-send task

• VDSL2 frames take up to 100 times longer to recover from packet loss:- 50 times longer to receive damaged packet- 50 times longer to re-send duplicate packet


Cutting Cost of Video over CopperCutting Cost of Video over Copper

TYPICAL C

USTOMER SERVICE A

REA (CSA) :

600 SUBSCRIBERS R

EACHING O

UT 12Kft

• Today’s typical CSA & copper plant

REMOTE TERMINAL (RT)HOUSING THE DSLAM

• Cupria’s extended reach requires the fewest RTs - up to 56% less cost

• New RTs must be deployed to deliver VDSL

• Fewer new RTs = faster deployment

BATTLE FOR THEDIGITAL HOME

BATTLE FOR THEDIGITAL HOME

• valid for:- CO to home- RT to home- Fiber-to-the-Node


Transparent Network IntegrationTransparent Network Integration

• CUPRIA™ is Implemented on DSLAM line cards and CPE

• Little to no impact on existing network OAM&P


26M @ 4Kft

26M @ 6Kft

Delivering Crucial ValueDelivering Crucial Value

• Ensures Cable-Competitive Services

• Leapfrogs Cable Services

• Delivers Lowest Network Cost

• Minimizes Operating Costs

• Accelerates time-to-market

• Enables Higher ROI than Cable

understanding your customer

tuesday, may 19, 2015©rim semiconductor company confidential and proprietary – do not distribute...

Documents

db noise floor

qos pure ip

pure ip access fresh

dslam pure ip

packet jitter delay

adaptive noise management

video latency slide

atm conversion