Redline Communications Inc. AN100UXA 用户手册
User
AN-100U/UX Base Station
Manual
70-00058-01-04
Proprietary Redline Communications © 2010
Page 65 of 136
April 19, 2010
PHY Parameters
Band Select MHz: (
*
) Select channelization type (802.16 OFDM PHY system profiles).
Channel Size MHz: (
*
) Select the channel size. Menu selection is based on the type of
radio installed. Refer to the appendices for a list of supported radios.
Guard Interval: (
*
) Select the cyclic prefix.
MAC Parameters
Frame Profile: Configure the frame size and usage profile.
Frame Duration ms: (
*
) Select the wireless frame duration (ms). Selections are
based on the channel size. This setting affects the system latency.
DL Ratio %: Enter the downlink usage as a percentage of frame size. This setting
provides traffic shaping on the uplink and downlink traffic profiles.
provides traffic shaping on the uplink and downlink traffic profiles.
The DL ratio is dynamic and can be changed at any time without reboot. The DL
Ratio setting in the Wireless Configuration page allows the selection between the
minimum and maximum values specified in the following table (based on Frame
Duration, Channel Bandwidth and Guard Interval settings):
Ratio setting in the Wireless Configuration page allows the selection between the
minimum and maximum values specified in the following table (based on Frame
Duration, Channel Bandwidth and Guard Interval settings):
Table 29: System - Wireless Channel Selection
Channel Size
(MHz)
Frame Duration
(ms)
Guard Interval
Lowest DL Ratio
(%)
Highest DL
Ratio (%)
3.5
5
1/16
50
75
1/4
58
75
10
1/16
25
80
1/4
26
80
7
5
1/16
25
80
1/4
30
80
10
1/16
25
85
1/4
25
85
Adaptive TDD: (
*
) This feature is provided to facilitate use of the base station for
backhaul applications only and should always be unchecked ( ) during normal (PMP)
operation. Refer to section 7.6: RedMAX Backhaul Application on page 120 for details.
operation. Refer to section 7.6: RedMAX Backhaul Application on page 120 for details.
Uplink Subchannelization: (
*
) (AN-100UX only) Check ( ) to enable uplink
subchannelization for distant/low signal subscribers. Refer to the full description of this
feature in section 7.1 Uplink Subchannelization (AN-100UX only) on page 110. Uplink
subchannelization is enabled by default.
feature in section 7.1 Uplink Subchannelization (AN-100UX only) on page 110. Uplink
subchannelization is enabled by default.
Synchronization Mode: (
*
) Select the synchronization mode. Refer to the RedMAX
base station Installation Guidelines for details of the synchronization feature.
No Synch: Synchronization feature is disabled.
Master: This base station provides the master synchronization pulse for each
connected slave base station (without external GPS clock source).
connected slave base station (without external GPS clock source).
Master with GPS Synchro: This base station is connected to a GPS clock and
provides the master synchronization pulse for each connected slave base station.
provides the master synchronization pulse for each connected slave base station.
Backup Master: This base station normally operates as a slave. If the master base
station fails to provide synchronization pulses, this unit will automatically become a
Master. This feature operates with or without an external GPS clock connection.
station fails to provide synchronization pulses, this unit will automatically become a
Master. This feature operates with or without an external GPS clock connection.
Slave: This base station synchronizes its operations to the synchronization pulse
received from the Master or Backup Master.
received from the Master or Backup Master.