Ericsson Router 6000 For Entel - CL - RevA [PDF]

Zitiervorschau

Futureproof ipran for 4.5G/LTE-A and 5G with Ericsson Router 6000 JL Quintero Aug 2017

Radio requirements on transport for 4.5G/LTE-A and 5g

Application requirements

Communication Distance vs. Latency – Especially for Critical IOT 1s

Process automation Tele-surgery

Inter-substation comm.

Latency

100 ms

Remote handling w/o haptic feedback

Substation-internal comm.

Hot rolling mill control Automated guided vehicle

10 ms

1 ms

100 us

Remote handling with heptic feedback (e.g. remote mining) Fixed

Robot manufacturing cell/roundtable

Wireless Autonomous driving

Fiber propagation Access delay (FWA)

Drive Control (packaging, printing) Wind turbineinternal

High speed motion control

10 m

100 m

1 km

Communication distance Router 6000 | Commercial in confidence | May 2017 | Page 3

10 km

100 km

Cloud RAN Architecture – Ready for 5G Distributed RAN

Centralized RAN

Elastic RAN

Virtualized RAN

Improved interworking between sites and layers

Colocation of resources and maximum performance in traffic hotspots

Optimal coordination across the network for D-RAN and C-RAN

Introducing split architecture for full flexibility on the road to 5G

Coordination Maximized spectrum efficiency and end-user experience Transport Enabler for coordination Time & Phase synchronization Enabler for coordination Router 6000 | Commercial in confidence | May 2017 | Page 4

5G Cloud RAN Architecture A Flexible Architecture for coordination L3 L2 L1

(e)S1 (e)X2 (e)S1 (e)S1

› Distributed RAN

L3 L2 high

L3 L2 L1

E5

F1

F1

(e)CPRI

› Virtualized RAN L2 low L1

Router 6000 | Commercial in confidence | May 2017 | Page 5

› Centralized RAN

L2 low L1

(e)CPRI

› Elastic RAN

LTE EVOLUTION – Key drivers for 5G transport

150 MBPS

More Bandwidth

Lower latency

Tighter Sync

LTE Unlicensed

Improved responsiveness

Inter eNB features

Carrier Aggregation

C-MTC emerging

More TDD networks

256 QAM

10GBPS (5G)

70 MS

Inter-eNB features

3km › 1.5µs cell radius < 3km – Positioning › 0.1µs E911 calls with OTDOA Observed Time Difference of Arrival Router 6000 | Commercial in confidence | May 2017 | Page 14

RAN Synchronization requirements Capacity features CoMP VP ±1.5µs, Inter eNB UL CoMP ±1.5µs, eRAN UL CoMP (future) ±1.5µs, eRAN DL CoMP (future)

Ericsson Lean Carrier VP ±1.5µs Ericsson Lean Carrier ±7µs (in UE) Network Assisted CRS-IC

Advanced CA VP ±1.5-5µs, Elastic RAN CA ±1.5-5µs, Inter-eNB CA

LTE Broadcast VP ±1.5µs – ±5µs,

Massive IOT ±1s, Idle Mode eDRX

Services Location Support VP ~100ns/0.1µs, OTDOA

Time Division network TD LTE ±1.5µs, e.g. TDD

5G (NR) ≤±1.5µs, e.g. TDD

Time accuracy of ±1.5µs covers the majority of use cases Router 6000 | Commercial in confidence | May 2017 | Page 15

Superior synchronization for Superior radio performance › Frequency Synchronization: – 3GPP: 50 ppb frequency stability on air interface – Minimize disturbance on air interface to secure handover between RBSs – Fulfill tough regulatory requirements connected to the frequency license

FDD – Frequency Division Duplex

› Phase (Time) Synchronization: – 3GPP specifies phase accuracy of ≤ 1.5µs for most scenarios – Synchronize transmission from different base stations to optimize bandwidth usage and enhance network capacity TDD – Time Division Duplex Router 6000 | Commercial in confidence | May 2017 | Page 16

Precision Time Protocol (PtP) Telecom Profiles › IEEE 1588 packet-based synchronization – Profiles allow selections of attribute values and optional features of PTP that inter-work and achieve a required performance for a particular application when using the same transport protocol

› ITU-T Timing profiles – Enables the deployment of PTP-based frequency synchronization – G.8265.1: Frequency distribution without timing support from the network (unicast mode) – G.8275.1: Phase and time distribution with full timing support from the network – G.8275.2: Phase and time distribution without full timing support

Router 6000 | Commercial in confidence | May 2017 | Page 17

RAN & Transport Time sync error budget ±1.5µs RAN Sync domain End-to-end budget CELL SITE

CPRI eCPRI

CELL SITE

Baseband 5216 3x CPRI-7

Radios

X2 eX2

±1.1µs Transport Sync domain End-to-end budget

Router 6000 | Commercial in confidence | May 2017 | Page 18

Baseband 5216 3x CPRI-7

CPRI eCPRI

Radios

Ericsson Router 6000

Synchronization Performance G.8273.2 Metric

Maximum Absolute Time Error

cTE (Constant Time Error)

Dynamic TE (Time Error)

TDEV (Time Deviation)

Class A

100ns

+- 50ns

40ns

4ns

Class B

70ns

+- 20ns

40ns

4ns

Router 6000 G.8275.1 T-BC

18ns

< +- 4ns

< 4ns

< 1ns

Holdover Performance

60s Holdover

5 min Holdover

5 min Holdover without SyncE

G.8271.1

350ns

450ns

NA

Router 6000 G.8275.1 TBC

< +- 10ns

< +- 10ns

< +- 200ns

•

350ns is 300ns holdover budget + 50ns Class A budget

•

450ns is 400ns holdover budget + 50ns Class A budget

Router 6000 | Commercial in confidence | May 2017 | Page 19

Time/Phase Sync with G.8275.1 Profile: Timing Boundary Clock T-BC • Frequency sync delivered to RBS via SyncE • Time/Phase delivered to RBS via 1588 PTP Clock (T-BC) locked time/phase to upstream T-BC/GM via 1588

Ethernet mcast encapsulated 1588 frames.

Ethernet

Ethernet

Equipment Clock

G.8275.1 Clock

SyncE Output Stable freq source to PTP Clock

Router 6000 | Commercial in confidence | May 2017 | Page 20

Ethernet mcast encapsulated 1588 frames.

SyncE as input source

GPS

Ethernet

8275.1 Capable Packet Network

Grandmaster Clock (GM)

Time/Phase Sync with G.8275.1 Profile: Timing Boundary Clock with Grand Master T-BC/GM GPS03

• Frequency sync delivered to RBS via SyncE

GPS is primary input source for time/phase & frequency to Equipment and PTP clocks

• Time/Phase delivered to RBS via 1588 • Ethernet mcast encapsulated 1588 frames.

1PPS+ToD Input

Ethernet

Ethernet

Using E/// CombinedE/// personality or CMCC/HPTSI Protocol for ToD messaging

Equipment Clock

SyncE Output Stable freq source to PTP Clock

G.8275.1 Clock

SyncE as secondary freq input source

1588 as secondary input source for time/phase from upstream T-BC/GM

GPS

Ethernet

8275.1 Capable Packet Network

1588 acts as backup to local GPS for time/phase frequency sync Router 6000 | Commercial in confidence | May 2017 | Page 21

Grandmaster Clock (GM)

Time/Phase Sync with multiple Profiles: G.8275.2 as backup source

GPS03

• Frequency sync delivered to RBS via SyncE

GPS is primary input source for time/phase & frequency to Equipment and PTP clocks

Stable freq source to PTP Clock

Time/Phase delivered to RBS via G.8275.1 profile

Ethernet mcast encapsulated 1588 frames.

1PPS+ToD Input Ethernet G.8275.1 Clock

Ethernet

SyncE Output

G.8275.1 Profile

Using E/// CombinedE/// personality or CMCC/HPTSI Protocol for ToD messaging

G.8275.2 Clock

1588 as secondary input source using G.8275.2 profile for time/phase from upstream T-BC/GM

Equipment Clock

SyncE as optional secondary freq input source

Ethernet

Non-PTP Capable Packet Network

G.8275.2 Profile

1588 acts as backup to local GPS for time, phase & frequency sync Router 6000 | Commercial in confidence | May 2017 | Page 22

GPS

Grandmaster Clock (GM)

Time/Phase Sync with multiple Profiles: G.8275.2 to Sync Small Cells Freq/Time/Phase delivered to RBS via G.8275.2 profile

PTP Clock (T-BC) locked time/phase to upstream T-BC/GM via G.8275.1 profile

IP unicast encapsulated 1588 frames.

Non-PTP Capable Packet Network

Stable freq source to PTP Clock

G.8275.2 Profile

G.8275.2 Clock

Ethernet mcast encapsulated 1588 frames.

G.8275.1 Clock

GPS Equipment Clock

SyncE as input source

Ethernet

8275.1 Capable Packet Network

G.8275.1 Profile

GPS source can also be added to Router 6000 in this scenario if needed Router 6000 | Commercial in confidence | May 2017 | Page 23

Grandmaster Clock (GM)

Interoperability Showcase European Advanced Networking Test Center › Test areas of interest – Netconf/YANG – ITU-T Y.1731 based bandwidth notification – Clock Synchronization › G.8275.1: T-GM Failover › G.8275.2: Assisted Partial Timing Support(A-PTS) / PTS

› Ericsson Radio System focus – Router 6000, MINI-LINK, Radio, GPS

Download from EANTC’s website Router 6000 | Commercial in confidence | May 2017 | Page 26

Ericsson Router 6000 family Building transport for the next generation radio networks

Capacity Quality of with Flexibility Service

Radio-aligned QoS support with high buffering time at full utilization

Router 6000 | Commercial in confidence | May 2017 | Page 28

Router 6000 | Commercial Presentation | Commercial in Confidence | © Ericsson AB 2017

Security

Sync

SDN

Quality of service For maximum user experience

Large Buffers

High density of 10G ports with

Hierarchical Queuing

low latency

…are required to

build best-in-class 5G ready transport offering superior app-coverage as well as excellent service quality for all services and industries Router 6000 | Commercial in confidence | May 2017 | Page 29

Router 6000 | Commercial Presentation | Commercial in Confidence | © Ericsson AB 2017

Shared networks using QoS per VLAN and H-Qos Standard QoS

› Differentiation between different traffic classes (CoS) › Services within the same traffic class are treated as a single aggregation with no isolation › Limited per-service visibility and control Router 6000 | Commercial in confidence | May 2017 | Page 30

H-QoS

› Each service gets its own personalized treatment › Per-service full visibility and control › Differentiation between different traffic classes (CoS) within a service

Why mobile Networks are bursty › Device mobility in mobile networks › Especially in busy cells like central train stations, subways, bus interchanges › 5G networks will be even more bursty with higher frequency and small cells › Big buffers key to optimizing TCP based traffic / video experience for subscribers UE

Router 6000 | Commercial in confidence | May 2017 | Page 31

Mobile Backhaul bursts Cause

Description

Burst rate

S1/X2 handover

During handover, traffic can move quickly to new links/new eNodeBs

Up to 200 Mbps per user

Transport Network event

For example, a link fails and traffic is re-routed very quickly (