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Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 1
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
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 2
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:
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 3
•
• 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
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 4
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
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 5
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
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 6
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
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 7
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
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 8
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
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 9
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
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 10
“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
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 11
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
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 12
Transparent Network IntegrationTransparent Network Integration
• CUPRIA™ is Implemented on DSLAM line cards and CPE
• Little to no impact on existing network OAM&P
Tuesday, April 18, 2023 ©Rim Semiconductor CompanyConfidential and Proprietary – Do Not Distribute
Page 13
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