Huawei RRN3301 User Manual

eRelay3.0 RRN3301

Product Description

Issue V1.0

Date	2012-10-20

HUAWEI TECHNOLOGIES CO., LTD.

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The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

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Address:	Huawei Industrial Base
	Bantian, Longgang
	Shenzhen 518129
	People's Republic of China
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Email:	support@huawei.com

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eRelay 3.0 RRN3301 Product Description

Contents

1 Product Positioning...............................................................................................................		1
1.1	Positioning ...........................................................................................................................................	1
1.2	Benefits ................................................................................................................................................	2
2 Product Architecture ............................................................................................................		4
2.1	Overview..............................................................................................................................................	4
2.2	Exterior ................................................................................................................................................	4
2.3	Ports .....................................................................................................................................................	5
3 Application Scenarios ...........................................................................................................		6
4 OM..........................................................................................................................................		8
4.1	Overview..............................................................................................................................................	8
4.2	OM Structure........................................................................................................................................	8
5 Specifications .......................................................................................................................		10
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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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		Port	Num		Connector	Description
			ber
			ber

Bottom		PoE/FE0	1		RJ45	Power over Ethernet
panel						(PoE) or service
						Ethernet port 1

		DBG	1		USB	Combined virtual
		DBG	1		USB	commissioning serial
						commissioning serial
						and Ethernet port
		FE1	1		RJ45	Service Ethernet port 2

Indicator	/		/	/		PWR, FE1, FE2, RUN,
panel						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

Item		Specifications

Maximum throughput		Downlink throughput: 80 Mbit/s
of a single eRelay		Uplink throughput: 28 Mbit/s
RRN		Uplink throughput: 28 Mbit/s
RRN

Maximum number of	2
Served Equipments
connected to a single
eRelay RRN

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

eRelay RRN3301	Mode	TDD

	Frequency	RX band	TX band	Bandwidth
	band	(MHz)	(MHz)	(MHz)

3.5GHz	3650MHz	3650MHz 10M/20M
Band 43	-3675MH	-3675MH
	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

Dimensions (H x W x D)	200 mm ×340 mm ×60 mm

Weight	≤3.5 kg

Power supply	PoE input: -48 V DC, 0.6 A

Table 5-4 describes the specifications for ports on the eRelay RRN3301.

Table 5-4 Specifications for ports on the eRelay RRN3301

Item	Specifications

Transmission	Two fast Ethernet (FE) electrical ports, one of which supports
ports	PoE power input.

Maintenance	One DBG port
port

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

Operating	 –40°C to +50°C
temperature

Relative	5% RH to 95% RH
humidity

Protection class	IP65

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

System availability	≥ 99.999%

System restarting time(soft-reset)	60s

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eRelay 3.0 RRN3301 Product Description

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