User Manual

Table Of Contents
Chapter 4 - Operation and Administration BTS Menu
BreezeMAX Extreme 78 System Manual
The available operation modes depend on the supplied configuration and installed
license options.
4.5.3.5.6 DL / UL Ratio
The DL/UL Ratio defines the ratio of transmit (downlink) time to receive (uplink)
time, in percents.
The available values are:
DL = 70%: UL = 30% - applicable only for BWs 7MHz and 3.5MHz. (complies
with DL/UL slots ratio of 24, 9)
DL = 65%: UL = 35% - applicable only for BWs 10MHz and 5MHz. (complies
with DL/UL slots ratio of 32, 15)
DL = 60%: UL = 40% - applicable for BWs 10, 7, 5 and 3.5MHz. (complies with
DL/UL slots ratio of 29, 18 and 21, 12)
DL = 55%: UL = 45% - applicable for BWs 10, 7, 5 and 3.5MHz. (complies with
DL/UL slots ratio of 26, 21 and 18,15 or SQN initiated as 53%-47%)
DL = 50%: UL = 50% - applicable only for BWs 10MHz and 5MHz. (complies
with DL/UL slots ratio of 23, 24 or SQN initiated as 47%-53%)
DL = 45%: UL = 55% - applicable only for BWs 7MHz and 3.5MHz. (complies
with DL/UL slots ratio of 15, 18 or SQN initiated as 44%-56%)
DL = 35%: UL = 65% - applicable only for BWs 7MHz and 3.5MHz. (complies
with DL/UL slots ratio of 12, 21)
The default is DL = 60%: UL = 40%. In the current release only this option is
supported, with compliance to DL/UL slots ratio of 29, 18.
NOTE
PRO 1000 and Si 1000 CPEs can operate only with MIMO A diversity. To support these CPEs by
units with a single radio, it is possible to set the Operation Mode of such a unit to Single Sector
Single BS with Diversity, although actual operation is with a single radio, single antenna and a
single Rx/Tx radio channel.
NOTE
In the current release only ratio of DL = 60% : UL = 40% with compliance to DL/UL slots ratio of 29,
18 is supported. Other options described below will be supported by future releases.