Alvarion BreezeMAX Extreme System Manual page 213

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Chapter 4 - Operation and Administration
Show: Select this option to view the relevant PHY parameters of the selected
BS. The displayed information is the same as described in the PHY section of
Show Summary (Section
Update: Select this option to update the configured values of the following
parameters:
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4.8.2.2.3.1
Diversity
In the current release the supported diversity modes are:
SISO (Single Input Single Output): No Diversity mode. This is the only mode
that can be used by 1SIS and 2SIS units using No Diversity operation mode. It
cannot be used by units using diversity operation modes.
MIMO Matrix A
MIMO Matrix A&B
MIMO Matrix A for Coverage Gain: In configuration with multiple transmit/receive
antennas, a single data stream is transmitted in parallel over multiple paths. A
mathematical algorithm known as Space Time Codes (STC) is used to encode the
data streams to make them orthogonal to each other. This improves the signal to
noise ratio at the receiver side, resulting in increased range and better throughput
for subscribers that are difficult to reach (e.g. deep indoors).
MIMO Matrix B for Increased Capacity: This flavor of MIMO, also known as
Spatial Multiplexing MIMO (SM-MIMO), sends an independent data stream over
each antenna. Thus, in case signal conditions are good, the data rate is increased
and in excellent conditions may be doubled.
1DIV units that support diversity can be configured to operate in either MIMO
Matrix A or MIMO Matrix A&B modes. When operating in MIMO Matrix A&B mode
the system can use either MIMO Matrix A or MIMO Matrix B. The selection
BreezeMAX Extreme
Diversity
UL Thermal Noise Level (dBm)
DL HARQ Channels
UL HARQ Channels
HARQ On Management
4.8.1).
192
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