[LampSite Encyclopedias]-Wi-Fi Function Integrated into the LampSite Network

无名小卒_卒  Silver  (1)
6 years 1 month ago  View: 2261  Reply: 3
1Wi-Fi Overview

A pRRU provides three installation slots. The LampSite base stations provide Wi-Fi services if the pRRUs are equipped with Wi-Fi daughter boards , which connect to WLAN networks through GE ports. LTE(TDD) and pRRU3902s do not support Wi-Fi. The following picture shows the slot for Wi-Fi daughter board and the GE port for WLAN connection.

2WLAN Network Structure

A typical Huawei WLAN network consists of the following NEs: STAs (stations), APs (access points), an AC (access controller), an AAA (Authentication, Authorization and Accounting server), and an OSS (operations support system). Figure 1 exemplifies the architecture of a WLAN network where the pRRUs are equipped with LTE and Wi-Fi daughter boards.

Figure 1 WLAN network structure

 

NOTE:

In this figure, the pRRU/AP indicates a pRRU in the LampSite solution and an AP in the WLAN solution.

The following part describes functions of the WLAN NEs:

STA

Being used by subscribers to access network services, a STA can be a personal computer (PC) with a wireless adapter, a pad, a mobile phone, or a tablet computer that supports Wi-Fi.

AP

The AP is a device that allows wireless devices to connect to a wired network using IEEE 802.11a/b/g/n standards. In Figure 1, the AP refers to a Wi-Fi daughter board in the pRRU.

AC

The AC performs radio channel management, device management and maintenance, and WLAN user access management in a centralized manner.

AAA

Based on the Remote Authentication Dial In User Service (RADIUS) protocol, the AAA server authenticates, authorizes, and accounts STAs accessing the network by working with an AC or a broadband remote access server (BRAS). Specifically, the AAA server checks whether a user has the permission to access the network, and authorizes users with permissions for service use (for example, allocated bandwidth), and accounts for service use.

OSS

The OSS manages WLAN devices and provides functions including configuration management, performance management, security management, log management, topology management, software management, system management, alarm management, and report management.

3Wi-Fi Specifications

Item

Specification

Supported Frequency Band

  • 2.4 GHz frequency band: 2.4000 GHz to 2.4835 GHz
  • 5 GHz frequency band: 5.15 GHz to 5.850 GHz

Gain (dBi)

  • 2.4 GHz frequency band: 4dBi
  • 5 GHz frequency band: 4.7dBi

Transmit Power

  2 x 50 mW on each frequency band

Maximum Throughput

  300 Mbit/s on each frequency band

Single/Dual Band Mode

  The single band and dual band are supported. The 5G frequency is automatically disabled if

  the ambient temperature is higher than 39°C.

MIMO

  2T2R

Maximum number of associated users

  256

Polarization Mode

  Linear

Compliance standards  IEEE 802.11a/b/g/n

Directionality

  Omnidirectional

 

4Reference Documents

Product

Version

Link

DBS3900 LampSite

V100R009C00

LampSite Technical Description

DBS3900 LampSite

V100R008C00

LampSite Technical Description

Axel  Junior 
5 years 8 months ago
How is the power for the WiFi daughter board obtained? is it a separate power supply, or does it take the power from the PoE that U or L technologys CPRI cable brings from RHUB?
m00717638  Junior 
5 years 7 months ago

Reply 2 #

Hi, the power for the WIFI daughter board comes from the POE CPRI port which is also providing the power for the other daughter boards like UMTS or LTE.

 

user_2837311  Diamond 
2 years 9 months ago
useful document, thanks