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Ericsson MINI-LINK PT 2010 ETSI Technical Description

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Technical Description
MINI-LINK PT 2010 ETSI
DESCRIPTION
1/221 02-CSH 109 172/1-V1 Uen E

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Summary of Contents for Ericsson MINI-LINK PT 2010 ETSI

  • Page 1 Technical Description MINI-LINK PT 2010 ETSI DESCRIPTION 1/221 02-CSH 109 172/1-V1 Uen E...
  • Page 2 Copyright © Ericsson AB 2010–2012. All rights reserved. No part of this material may be reproduced in any form without the written permission of the copyright owner. Disclaimer The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing.

  • Page 3: Table Of Contents

    Contents Contents Introduction General Scope Revision Information Network Overview System Overview Ethernet Traffic Handling in MINI-LINK PT 2010 Ethernet WAN Buffer Native Ethernet MINI-LINK PT 2010 Functions – Radio Link Hitless Adaptive Modulation Transmit Power Control MINI-LINK PT 2010 Functions – Ethernet Ethernet Functional Flow in MINI-LINK PT 2010 Quality of Service Support Performance Monitoring...
  • Page 4 Technical Description Hardware Management Software Management License Management Accessories 10.1 Cables and Cable Clamps 10.2 Hybrid Cable 10.3 Optical Cable Distribution System 10.4 Technical Specifications 11.1 Power Supply Requirements 11.2 Environmental Conditions 11.3 Dimensions and Weight 11.4 Traffic Interfaces 1/221 02-CSH 109 172/1-V1 Uen E | 2012-11-07...

  • Page 5: Introduction

    Introduction Introduction General The purpose of this description is to give the reader detailed information on MINI-LINK PT 2010, both from a technical and functional perspective. MINI-LINK PT 2010 is a complete microwave modem and radio unit with the capability of handling IP and Ethernet traffic using all the required frequencies in the 6–42 GHz range.

  • Page 6: Scope

    PT 2010 MINI-LINK TN MINI-LINK PT 2010 MINI-LINK SP 110 6-42 GHz, 1+0, USER I/O SYNC 1 10/100/1000 Base-T ERICSSON 406 Mbps MINI-LINK SP 110 Fault 10/100/1000 Base-T / 100/1000 Base-X E1 / DS1 Power DC -48V 2A MAX Oper...

  • Page 7: System Overview

    System Overview MINI-LINK PT 2010 product offering there is support for Ethernet transport with different bandwidth and capacity options over both radio and fixed connections. MINI-LINK PT 2010 offers the size and capacity to meet the needs of both last mile access and first aggregation point, in a mobile backhaul network.
  • Page 8 Technical Description Power Cable Optical Fiber Cable 15502 Figure 2 System Overview 1/221 02-CSH 109 172/1-V1 Uen E | 2012-11-07...
  • Page 9 System Overview MINI-LINK PT 2010 is a stand-alone product integrating the system platform providing traffic and system control, with microwave transmission from 8 to 406 Mbps. MINI-LINK PT 2010 operates within the 6 to 42 GHz frequency bands, using 4, 16, 32, 64, 128, 256, and 512 QAM modulation schemes, also supporting Hitless Adaptive Modulation.

  • Page 10: Ethernet Traffic Handling In Mini-Link Pt 2010

    Technical Description Ethernet Traffic Handling in MINI-LINK PT 2010 MINI-LINK PT 2010 supports all-IP and Native Ethernet simultaneously. Ethernet traffic is sent over a hop as Ethernet over packet link (Native Ethernet). The Ethernet LAN ports are described in Table 1. Table 1 Ethernet LAN Port Properties Ethernet LAN port properties...

  • Page 11: Native Ethernet

    Ethernet Traffic Handling in MINI-LINK PT 2010 For UMTS data traffic, the in-order sequence delivery between the Radio Base Station/nodeB and the Radio Network Controller (RNC) can cause bursts of hundreds of milliseconds. LAN port buffers are designed to be very small in order to keep delay variation as small as possible, whereas WAN port buffers are larger, to enable handling of congestion at the WAN port.

  • Page 12: Mini-Link Pt 2010 Functions - Radio Link

    Technical Description Native Ethernet WAN port Description properties Latency The end to end latency for an Ethernet over Packet Link connection will differ based on different parameters, for example, link speed. Typical end to end latency contribution between two Ethernet ports on two nodes connected with Ethernet over packet Link with 135 Mbps link capacity is: •...
  • Page 13 MINI-LINK PT 2010 Functions – Radio Link to maintain parts of the traffic by switching to a lower modulation, using Hitless Adaptive Modulation. The availability for a 56 MHz channel is illustrated in Figure 4. Received signal 512 QAM 256 QAM 128 QAM 64 QAM 16 QAM...

  • Page 14: Transmit Power Control

    Technical Description Buffering Adaptive modulation might influence the design of the buffer dimensioning. In case packet aging is not used, the maximum delay variation time will increase due to that the buffer is configured in bytes and that data will travel at a slower speed during lower modulation steps.
  • Page 15 MINI-LINK PT 2010 Functions – Radio Link The transmitter can be turned on or off from the management system. Transmit power ATPC max fix min ATPC min RTPC mode ATPC mode 5647 Figure 5 Transmit Power Control 5.2.1 RTPC Mode In RTPC mode the transmit power (P ) ranges from a minimum level (P ) to...

  • Page 16: Mini-Link Pt 2010 Functions - Ethernet

    Technical Description MINI-LINK PT 2010 Functions – Ethernet MINI-LINK PT 2010 is targeting multiple applications and network environments with the embedded Ethernet capabilities. MINI-LINK PT 2010 therefore provides flexibility and supports the following Ethernet services and features. An Ethernet functions overview is presented in the tables below. Table 4 QoS and Congestion Handling Quality of Service Support/Conges...
  • Page 17 MINI-LINK PT 2010 Functions – Ethernet Weighted Fair Queuing (WFQ) The WFQ scheduling mechanism offers a more flexible way to schedule frames on an egress port and prevents starvation of TC queues. WFQ can be used together with the Strict Priority scheme. CoS classification The CoS value for a frame is a representation of the end user...
  • Page 18 Technical Description Table 6 Management Management Embedded VLAN based The management traffic can be management transported in a logically separated VLAN together with the Ethernet traffic on the optical fiber and the Radio Link. Performance measurements The following PM counters are available per Ethernet LAN/WAN ports: •...

  • Page 19: Ethernet Functional Flow In Mini-Link Pt 2010

    MINI-LINK PT 2010 Functions – Ethernet Ethernet Functional Flow in MINI-LINK PT 2010 6.1.1 Supported Frame Sizes In a real network there will often be Ethernet frames of different sizes. The size of a frame is often related to the application. A real time application (for example, voice, video) that requires minimum latency typically uses small Ethernet frames, while a data application with non real-time characteristics uses the maximum frame size.
  • Page 20 Technical Description Network domain User/cust User/cust domain domain User/customer User/customer Network Priority Priority Priority 13759 Figure 6 User/Customer and Network Domains User/Customer Priority The priority setting used in the user/customer domain and set by the user/customer. The user/customer priority information can be retrieved in one of five different ways from the user domain frames: 1.
  • Page 21 MINI-LINK PT 2010 Functions – Ethernet In a network, it is important that only one set of priority definitions is used (for example, IEEE 802.1D-2004). Otherwise, the handling of Ethernet frames and the mapping to egress queues can differ between network elements. The outcome of this scenario is a non predictable behavior for the different traffic types (for example, voice).
  • Page 22 Technical Description Incoming Untagged & Map to highest DA match priority S -Tag Trusted =SPcP (outer tag) C-Tag Trusted =CPcP (outer tag) Map to Priority Acording to rule Ipv 4 Trusted = Ipv4 (0, 1 or 2 tags) Ipv6 Trusted = Ipv6 (0, 1 or 2 tags) MPLS...
  • Page 23 MINI-LINK PT 2010 Functions – Ethernet Differentiation of flows is done based on the network priority value in the header part of each Ethernet frame. The network priority value to be used in the network domain is typically set as a part of the tagging process at the network edge.
  • Page 24 Technical Description Internal priority Traffic class queue Empty 1st Network control Internetwork control Empty 2nd Video 10ms l. Scheduling Video 100 ms l. Awailable BW Critical application Excellent Effort Best effort Empty last Background 14027 Figure 9 IEEE802.1Q-2005 Mapping Priority/TC buffers Each Ethernet interface has a separate egress buffer to handle temporary link congestion.
  • Page 25 MINI-LINK PT 2010 Functions – Ethernet Highest priority (TC7) Empty 1st Empty2nd Strict Egress priority/TC Priority buffers Scheduler Lowest priority (TC0) Empty last 15490 Figure 10 Strict Priority Based Scheduling With Strict Priority, buffers with lower priority will never get served if high priority queues are constantly being filled up.
  • Page 26 Technical Description In a live network the Strict Priority and WFQ scheduling algorithms are typically combined. In MINI-LINK PT, the Strict Priority and WFQ algorithms can be applied to different buffers as described in the example below. The size of the Strict Priority and WFQ areas (x, y and z values) can differ but the Strict Priority/WFQ/Strict Priority organization is fixed.
  • Page 27 MINI-LINK PT 2010 Functions – Ethernet TC7: High prio WFQ (40%) WFQ (40%) WFQ (30%) WFQ (30%) WFQ (50%) WFQ (15%) WFQ (20%) WFQ (30%) WFQ (10%) WFQ (10%) WFQ (20%) TC0: Low prio WFQ (5%) Template 1 Template 2 Template 3 Template 4 12555...
  • Page 28 Technical Description TC buffers Frame Frame inflow outflow Timestamp based Tail drop dropping (Aging) Discard Discard 15491 Figure 14 Discard Mechanisms in MINI-LINK PT 2010 Chapter Summary This is a summary of the congestion handling chapter: • Defining the LAN port as a trusted port, the Packet Terminal will act on priority information contained in the traffic.
  • Page 29 MINI-LINK PT 2010 Functions – Ethernet PCP bits in L2 header Mapping table Egress TCbuffer EXP bits in Scheduling Mapping MPLS header table Internal Priority Mapping table DSCP/TOS bits In L3 header Direct Mapped according to mapping IEEE802.1D/Q or custom Default priority 13824 Figure 15...

  • Page 30: Quality Of Service Support

    Technical Description • Number of received Broadcast frames • Number of sent Unicast frames • Number of sent Multicast frames • Number of sent Broadcast frames Diagnostics Tools MINI-LINK PT 2010 supports the diagnostic tools described below. Probes To detect the usage and congestion level of MINI-LINK PT 2010, two different measurement probes can be activated for all WAN ports.
  • Page 31 MINI-LINK PT 2010 Functions – Ethernet Note: IEEE 802.3x-based congestion handling mechanism does not take into account the usage of different priority levels. The reception of a PAUSE message triggers a network element to halt all Ethernet frames. This means that IEEE 802.3x-based congestion handling is not suitable for networks configured for different priority levels and transmission of real-time traffic.

  • Page 32: Performance Monitoring

    Technical Description TC 0 Disabled TC 1 Disabled TC 2 Disabled TC 3 TC 4 10 ms TC 5 10 ms TC 6 10 ms TC 7 10 ms 14710 Figure 17 Default Settings for Packet Aging 6.2.4 Strict Priority With strict priority scheduling, the eight traffic class queues are handled one-by-one with the highest priority queue first.

  • Page 33: Delay

    MINI-LINK PT 2010 Functions – Synchronization Bandwidth utilization Effective use of nominal radio bandwidth allocated to Ethernet traffic. Delay measurement Measures the average packet delay. Packet counters Counts packets. Reported for LAN and WAN ports on both L2R and R2L direction. Delay Delay performance per link for priority traffic is <0.8 ms for Radio Link capacities below 50 Mbps and <0.5 ms for Radio Link capacities above 50 Mbps.

  • Page 34: Synchronization Technologies

    Technical Description Active synchronization path Inactive synchronization path 9531 Figure 18 Master-Slave Synchronized Network In this mode MINI-LINK PT 2010 will use the Node Clock on all the protocol layers generated in the node. Synchronization Technologies Figure 19 shows the different synchronization functions supported by MINI-LINK PT 2010.
  • Page 35 MINI-LINK PT 2010 Functions – Synchronization Synchronization Logic Status Network Free Running Synchronization Synchronization Status Propagation Logic Sync over Interfaces Radio Link Sync over Radio Link Selection Synchronous Synchronous Interfaces Ethernet Ethernet ETY: ITU-T G.8264 name 13761 Figure 19 MINI-LINK PT 2010 Synchronization Functions Synchronous Ethernet enables propagation of frequent synchronization over optical SFPs.

  • Page 36: Mini-Link Pt 2010 Hardware

    Technical Description MINI-LINK PT 2010 Hardware Packet Terminal 8.1.1 Overview MINI-LINK PT 2010 is a weatherproof box painted light gray, with a handle for lifting and hoisting. There are also two hooks and catches to guide it for easier handling, when fitting to or removing from an integrated antenna. It comprises a cover and a MINI-LINK PT 2010 terminal.
  • Page 37 MINI-LINK PT 2010 Hardware 8.1.2 External Interfaces XPIC O&M TRAFFIC / ALIGMENT POWER 15505 Figure 21 External Interfaces, MINI-LINK PT 2010 Mechanical Design Item Description Socket for XPIC cable. Operation & Maintenance socket for local O&M cable, access to RMM port. Optical fiber input socket for traffic cable.

  • Page 38: Antennas

    Technical Description XPIC O&M TRAFFIC/ALIGNMENT POWER 15507 Figure 23 Environmental Seals, MINI-LINK PT 2010 Mechanical Design MINI-LINK PT 2010 is environmentally sealed, so that it can withstand most conditions. The O&M, power supply and optical fiber cable are sealed, the power supply cable is also shielded as a form of grounding.
  • Page 39 MINI-LINK PT 2010 Hardware 15508 Figure 24 0.2 m, 0.3 m, and 0.6 m Compact Antennas Integrated with MINI-LINK PT 2010s MINI-LINK PT 2010 can be fitted directly to an Integrated Power Splitter (IPS). An asymmetrical power splitter is mainly used for hardware protection only. The IPS provides one main channel with low attenuation and one standby channel with higher attenuation.

  • Page 40: Management

    Technical Description The 0.3 m and 0.6 m Integrated dual polarized antennas are used with two MINI-LINK PT 2010s. 8.2.2.2 Separate Installation All antennas have a standardized waveguide interface and can be installed separately, by using a flexible waveguide to connect to the MINI-LINK PT 2010. The 2.4–3.7 m dual polarized and single polarized antennas are always installed separately.
  • Page 41 Management 9.1.1 IP Services The following standard external IP network services are supported: • All clocks, used for example, for time stamping alarms and events, can be synchronized with a Network Time Protocol (NTP) server. • File Transfer Protocol (FTP) is used as a file transfer mechanism for software upgrade, and for backup and restore of system configuration.

  • Page 42: Management Tools And Interfaces

    Technical Description 9.1.2 DCN Interfaces MINI-LINK PT 2010 provides an IP based DCN for transport of its O&M data. Each NE has an IP router for handling of the DCN traffic. Figure 28 illustrates the DCN configuration. Radio side Line side Router DCC Radio Terminal DCN over VLAN...
  • Page 43 Management ServiceOn Network Manager/ServiceOn ServiceOn Ethernet Service Activator Element Manager MINI-LINK Craft SNMP SNMP Local Port MINI-LINK Mobile Network OSS/NMS PT 2010 SNMP Ethernet Switch Site LAN MINI-LINK Craft 15512 Figure 29 Management Tools and Interfaces 9.2.1 MINI-LINK Craft MINI-LINK Craft provides tools for on-site installation, configuration management, fault management, performance management and software upgrade.

  • Page 44: Configuration Management

    Ethernet services on packet enabled Ericsson transport products. The SO ESA management application supports Integration with ServiceOn Element Manager for equipment level management and feature discovery.

  • Page 45: Fault Management

    Alarm and event notifications are sent as SNMP v2c/v3 traps with a format according to Ericsson’s Alarm IRP SNMP solution set version 1.2. The following fields are included in such a notification: 1/221 02-CSH 109 172/1-V1 Uen E | 2012-11-07...

  • Page 46: Performance Management

    Technical Description • Notification identifier: uniquely identifies each notification. • Alarm identifier: only applicable for alarms, identifies all alarm notifications that relate to the same alarm. • Managed object class: identifies the type of the source. • Managed object instance: identifies the instance of the source like 1/11/1A. •...
  • Page 47 Management • Elapsed Time The performance counters above are available for 15 minutes and 24 hours intervals. The start time of a 24 hours interval is configurable. The following counters are stored in the NE: • Current 15 minutes and the previous 96×15 minutes •...

  • Page 48: Hardware Management

    Technical Description Hardware Management MINI-LINK PT 2010 is a single unit consisting of both a modem unit and a radio unit. The replaceable parts of a MINI-LINK PT 2010 system are: • • • MINI-LINK PT 2010 unit. When replacing an optical SFP, no configuration is needed. RMMs containing new licenses can be replaced, no new configuration is needed.

  • Page 49: Accessories

    Accessories The license key installation can be made both locally and remotely, without disturbing the traffic through the NE. License keys can also be preinstalled at delivery, when a complete and preconfigured NE is purchased. Accessories The MINI-LINK PT 2010 product program contains a number of accessories for installation and operation.
  • Page 50 Technical Description 15347 Figure 31 Indoor Extension Cable The power cable in Figure 32 has one open end. 14186 Figure 32 Power Cable The field installable shielded power cable connector kit in Figure 33 and Table 7 can be used with the power cables in Table 8. 15403 Figure 33 Field Installable Fullax Power Connector Kit...

  • Page 51: Hybrid Cable

    Accessories Table 7 Power Cable Connector Kit Product Name Product Number Field installable shielded cover SDF 107 239/001 The power cables in Table 8 can be used with the power cable connector in Table 7. Table 8 Fixed Length Cables without Connectors Product Name Product Number Power cable, x m (10 m increments)

  • Page 52: Optical Cable Distribution System

    Technical Description 15348 Figure 35 Hybrid Cable 10.3 Optical Cable Distribution System The cables in Figure 36 and Figure 37 can be used for distributing the optical cables to several MINI-LINK PT 2010s. 15402 Figure 36 Outdoor Mini FAN Out Box 1/221 02-CSH 109 172/1-V1 Uen E | 2012-11-07...

  • Page 53: Sfp

    Accessories 15401 Figure 37 Outdoor Multi Fibre Cable 10.4 13821 Figure 38 The Small Form Factor Pluggables (SFPs) in Table 11 can be used in MINI-LINK PT 2010. Table 11 SFPs Product Name Product Number SFP GB-LX 1310 nm (SFP RDH 901 20/D0210 1000BASE-LX 1310 nm, 10 dB, 10 km, LC Duplex)

  • Page 54: Technical Specifications

    Technical Description Product Name Product Number TRX SM CPRI dual rate RDH 102 45/1 614/1228 Mbps, 1GBE-LX, 12.5 dB LC-SFP receptacle 40/+85 C TRX SM CPRI dual rate RDH 102 47/4 614/1228 Mbps, 1GBE-LX, 12.5 dB LC-SFP receptacle 40/+85 C Technical Specifications This section summarizes some technical specifications for MINI-LINK PT 2010.

  • Page 55: Dimensions And Weight

    Technical Specifications 11.3 Dimensions and Weight The following dimensions and weight apply for the MINI-LINK PT 2010: • Max Weight: 6.5 kg • Nominal Dimensions (D×W×H): 117.3×260×321 mm 11.4 Traffic Interfaces Optical Laser Class 1 SFP: RDH 102 45/1 (or functional identical). Functional identical to RDH 102 45/1 means: •...

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