Table 4-5: Rates (Modulation Schemes And Coding) - Nera WILINK I System Manual

In the uplink, this is the rate to be used by SUs for non-scheduled transmissions,
such as during the contention period.
The Basic Rate is also the initial rate to be used by the algorithm for each new SU
that joins the cell when the Multirate algorithm is enabled.
When the Multirate algorithm is disabled, communication with connected SUs
will continue using the last uplink and downlink rates selected by the Multirate
algorithm. The Set Rates option in the SU (see Section 4.9.6.3.4.2), which
becomes available only when the Multirate algorithm is disabled in the AU,
enables setting the Uplink Current Rate and the Downlink Current Rate to any of
the values listed in Table 4-5.
The multirate algorithm chooses dynamically between 8 rates. These are also the
rates that can be configured for the Basic Rate parameters.
No.
1
2
3
4
5
6
7
8
The Multirate menu enables viewing/updating the following parameters:
4.8.4.3.4.1 Multirate Enable/Disable
The Multirate Enable/Disable parameter controls whether the multirate
algorithm should be used to determine current optimal rates in both the uplinks
and the downlinks.
The default is Enable.
NOTE
The multirate algorithm should always be enabled. The option to disable it is available to enable
using a fixed rate to support certain tests. After each reset, the AU boots with the multirate enabled,
disregarding its status before the device was reset.
4.8.4.3.4.2 Uplink Basic Rate
The Basic Rate for all uplinks.
WILINK I MODULAR BASE STATION SYSTEM MANUAL

Table 4-5: Rates (Modulation Schemes and Coding)

Rate
BPSK 1/2
BPSK 3/4
QPSK 1/2
QPSK 3/4
QAM16 1/2
QAM16 3/4
QAM64 2/3
QAM64 3/4
AU Menu
105