Motorola Orthus Handbuch - Seite 5
Blättern Sie online oder laden Sie pdf Handbuch für Zwei-Wege-Radio Motorola Orthus herunter. Motorola Orthus 25 Seiten.
Seite drucken
1
Functional summary
1.1
Overall radio summary
The Orthus radio is a dual band radio which can be configured to work at 2.4GHz or at 5.2GHz. The Orthus radio is
based on Atheros XB92 reference design that is a 2x2 MIMO supporting 1 and 2 spatial streams. There are only two
antennas for the radio. The Orthus radio is based on XB92 base band chipset AR9280 from Atheros with the radio
front end redesigned such that the radio will have better transmit power than the Atheros XB92 reference design.
The radio has two operation modes: 3.3V and 5.0V. In the 5.0V mode, the radio is designed to transmit more power
than the 3.3V in 2.4G band. More details are described later on in this document. The Orthus radio will be used in
three different AP products: MCN, NCAP, and high power NCAP (HP-NCAP).
The following section highlights a few modes of the radio:
Data rates supported in 802.11b modes are: 1Mbps, 2Mbps, 5.5Mbps, and 11Mbps.
•
Data rates supported in 802.11g modes are: 6Mbps, 9Mbps, 12Mbps, 18Mbps, 24Mbps, 36MBps, 48Mbps,
•
and 54Mbps.
Data rates supported in 802.11n draft 2.0 modes: MCS0 through MCS15.
•
Channel bandwidth: 20 MHz or 40 MHz.
•
Frequency band: 2.4 GHz and 5.2 GHz.
•
Short guard support for HT40.
•
STBC support in single spatial stream mode.
•
Configurable transmit power mode: medium and high power (3.3V or 5.0V)
•
Typical RF transmit power per antenna, high power mode, 11Mbps: +28dBm, 2.4G.
•
Typical RF transmit power per antenna, normal power mode, 11Mbps: +22dBm, 2.4G.
•
Typical RF transmit power per antenna, normal power mode, 6Mbps: +21dBm, 5.2G.
•
Interface: PCI-E.
•
1.2
Radio PHY Supported feature highlights
HT PHY Layer Features/Functions
20 MHz Channel Bandwidth
40 MHz Channel Bandwidth
Short preamble
Short/Long guard for HT20
Short/Long guard for HT40
Legacy Frame Format
Mixed Mode (High Throughput) Frame Format
Green Field Frame Format
40 MHz Mode
Convolutional Coding
Low Density Parity Check Coding (LDPC)
Open Loop Spatial Division Multiplexing (SDM)
Closed Loop Transmit Beam forming (TxBF)
Space Time Blocking Code (STBC)
800ns Guard Interval
400ns Guard Interval
1 Spatial Stream
2 Spatial Stream
3 Spatial Stream
4 Spatial Stream
For Internal Use Only - Do Not Duplicate
Copyright (c) 2009 by Motorola
CONFIDENTIAL AND PROPRIETARY
Supported
Not supported
X
X
Long guard
Short guard
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
5