eRelay3.0 RRN3301
Product Description
Issue V1.0
Date |
2012-10-20 |
HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved.
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|
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|
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eRelay 3.0 RRN3301 Product Description
Contents
1 Product Positioning............................................................................................................... |
1 |
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1.1 |
Positioning ........................................................................................................................................... |
1 |
1.2 |
Benefits ................................................................................................................................................ |
2 |
2 Product Architecture ............................................................................................................ |
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2.1 |
Overview.............................................................................................................................................. |
4 |
2.2 |
Exterior ................................................................................................................................................ |
4 |
2.3 |
Ports ..................................................................................................................................................... |
5 |
3 Application Scenarios ........................................................................................................... |
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4 OM.......................................................................................................................................... |
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8 |
4.1 |
Overview.............................................................................................................................................. |
8 |
4.2 |
OM Structure........................................................................................................................................ |
8 |
5 Specifications ....................................................................................................................... |
10 |
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5.1 |
Capacity Specifications ...................................................................................................................... |
10 |
5.2 |
Device-Related Specifications ........................................................................................................... |
10 |
5.3 |
Reliability Specifications ................................................................................................................... |
11 |
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eRelay 3.0 RRN3301 Product Description
1 Product Positioning
eRelay is a wireless transport networking solution, used on the higher band of TDD spectrum (<6GHz). As a network element (NE) in the eRelay system, eRelay remote node(RRN) works together with eRelay BS to perform wireless backhaul.
1.1 Positioning
With the expansion of mobile broadband users (MBB), network capacity is insufficient in some outdoor hot spot areas, affecting user experience. Operators use compact devices such as AP, Micro, and Pico eNodeBs to cover hot spots. In the preceding scenarios, if access devices for fixed networks, such as optical fibers, are used for backhaul, deployment costs are high and fixed network resources are difficult to obtain. Therefore, wireless backhaul is required to solve the problem.
As a wireless backhaul solution, eRelay adopts TDD technologies and provides high throughput with short delay. Compared with backhaul in fixed networks, deployment costs for eRelay are low and frequency resources are accessible. Compared with micro waves, eRelay has advantages in transmission in non line of sight (NLOS) scenarios.
In the eRelay solution, the eRelay RRN provides wireless backhaul channels for Served Equipments such as Macro, Micro, Pico, video surveillance, AP and fixed network equipment. RRN access eRelay BS through air interfaces.
RRN3301 is one of the Huawei eRelay module.
Figure 1-1 shows an eRelay RRN3301.
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eRelay 3.0 RRN3301 Product Description
Figure 1-1 eRelay RRN3301
1.2 Benefits
Larger Capacity and Throughput with Flexible Transmit Power
A single eRelay RRN3301 can be connected to a maximum of two Served Equipments.
A single eRelay RRN3301 supports the maximum uplink and downlink rate of 28 Mbit/s and 80Mbit/s, respectively.
Optimized Transmission Mode with Low Costs
eRelay RRN3301 support layer 2 switching.
Flexible Installation for Fast Network Deployment with Low CAPEX
The eRelay RRN3301 has a highly integrated structure with a small size and light weight, facilitating installation and maintenance and reducing the capital expenditure (CAPEX).
eRelay RRN3301 can be mounted onto a pole, and equipment rooms are not required. eRelay RRN3301 can be flexibly installed on different places and
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eRelay 3.0 RRN3301 Product Description
require small space. Therefore, sites are easily obtained, network deployment flexibility is enhanced, and site lease costs are reduced.
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eRelay 3.0 RRN3301 Product Description
2 Product Architecture
2.1 Overview
An eRelay RRN3301 consists of a modem, and panel antenna. Figure 2-1 shows the eRelay RRN3301 architecture.
Figure 2-1 eRelay RRN3301 architecture
Modules in eRelay RRN3301 have following functions:
The modem enables the connection between the RRN and eRelay BS over air interfaces.
The panel antenna provides directional transmission and receipt of LTE signals with high gains. The specifications are as follows:
Gain: 17±1 dBi for 3.5G. Horizontal 3dB beamwidth: 40° Vertical3 dB beamwidth: 20°
2.2Exterior
Figure 2-2 shows the eRelay RRN3301 exterior.
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eRelay 3.0 RRN3301 Product Description
Figure 2-2 eRelay RRN3301 exterior
2.3 Ports
The eRelay RRN3301 provides ports on its bottom panel and indicator panel, as described in Table 2-1.
Table 2-1 Ports on the eRelay RRN3301
Module |
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Port |
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Num |
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Connector |
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Description |
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ber |
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Bottom |
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PoE/FE0 |
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1 |
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RJ45 |
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Power over Ethernet |
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panel |
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(PoE) or service |
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Ethernet port 1 |
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DBG |
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1 |
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USB |
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Combined virtual |
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commissioning serial |
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and Ethernet port |
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FE1 |
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1 |
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RJ45 |
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Service Ethernet port 2 |
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Indicator |
/ |
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/ |
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/ |
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PWR, FE1, FE2, RUN, |
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panel |
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and SIG indicators |
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eRelay 3.0 RRN3301 Product Description
3 Application Scenarios
Working together with auxiliary devices, eRelay RRN3301 can be installed indoors and outdoors based on operator requirements.
An eRelay RRN3301 can be mounted onto a pole or on the wall, as shown in Figure 3-1 and Figure 3-2.
Figure 3-1 eRelay RRN3301 mounted onto the pole
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eRelay 3.0 RRN3301 Product Description
Figure 3-2 eRelay RRN3301 installed on the wall
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eRelay 3.0 RRN3301 Product Description
4 OM
4.1 Overview
The eRelay RRN3301 will be managed as a board of BS by operation and maintenance system.
4.2 OM Structure
Figure 4-1 shows the operation and maintenance system of the eRelay RRN3301.
Figure 4-1 OM system of the eRelay RRN3301
The OM system consists of the LMT and the M2000.
The LMT is used to maintain a single eRelay RRN3301.
To maintain the eRelay RRN3301 remotely, connect the LMT to the eRelay RRN3301 through the Internet Protocol (IP) network.
The M2000, a mobile element management system provided by Huawei, is used to remotely maintain multiple eRelay RRN3301s of different types or software versions.
The OM system provides the following functions:
The LMT performs functions such as data configuration, alarm monitoring, commissioning, and software upgrade.
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eRelay 3.0 RRN3301 Product Description
The M2000 performs functions such as data configuration, alarm monitoring, performance monitoring, and software upgrade.
Both the LMT and the M2000 support MML and GUI modes.
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eRelay 3.0 RRN3301 Product Description
5 Specifications
eRelay RRN3301 specifications include capacity specifications, device-related specifications, and reliability specifications.
5.1 Capacity Specifications
Table 5-1 describes the capacity specifications for an eRelay RRN3301.
Table 5-1 Capacity specifications for an eRelay RRN3301
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Item |
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Specifications |
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Maximum throughput |
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Downlink throughput: 80 Mbit/s |
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of a single eRelay |
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Uplink throughput: 28 Mbit/s |
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RRN |
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Maximum number of |
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2 |
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Served Equipments |
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connected to a single |
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eRelay RRN |
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5.2 Device-Related Specifications
Table 5-2 describes the device specifications for an eRelay RRN3301.
Table 5-2 Device specifications for an eRelay RRN3301
Item |
Specifications |
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eRelay RRN3301 |
Mode |
TDD |
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Frequency |
RX band |
TX band |
Bandwidth |
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band |
(MHz) |
(MHz) |
(MHz) |
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3.5GHz |
3650MHz |
3650MHz 10M/20M |
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Band 43 |
-3675MH |
-3675MH |
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z |
z |
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eRelay 3.0 RRN3301 Product Description
Table 5-3 describes mechanical and electrical specifications for an eRelay RRN3301.
Table 5-3 Mechanical and electrical specifications for an eRelay RRN3301
Item |
Specifications |
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Dimensions (H x W x D) |
200 mm ×340 mm ×60 mm |
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Weight |
≤3.5 kg |
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Power supply |
PoE input: -48 V DC, 0.6 A |
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Table 5-4 describes the specifications for ports on the eRelay RRN3301.
Table 5-4 Specifications for ports on the eRelay RRN3301
Item |
Specifications |
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Transmission |
Two fast Ethernet (FE) electrical ports, one of which supports |
ports |
PoE power input. |
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Maintenance |
One DBG port |
port |
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Table 5-5 describes the environment and clock specifications for an eRelay RRN3301.
Table 5-5 Environment and clock specifications for an eRelay RRN3301
Item |
Specifications |
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Operating |
–40°C to +50°C |
temperature |
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Relative |
5% RH to 95% RH |
humidity |
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Protection class |
IP65 |
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5.3 Reliability Specifications
Reliability specifications include system availability, mean time between failures (MTBF), mean time to repair (MTTR), and system restarting time. Table 5-6 describes the reliability for an eRelay RRN3301.
Table 5-6 Reliability specifications for an eRelay RRN3301
|
Item |
Specifications |
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System availability |
≥ 99.999% |
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System restarting time(soft-reset) |
60s |
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