![R&S CMW-KM5 Series Скачать руководство пользователя страница 175](http://html1.mh-extra.com/html/rands/cmw-km5-series/cmw-km5-series_user-manual_3148802175.webp)
LTE Signaling
R&S
®
CMW-KM5xx/-KS5xx
175
User Manual 1173.9628.02 ─ 16
During the establishment of additional default bearers you must not modify any set-
tings. So do not change parameters when the UE sends a default bearer request, until
the event log indicates that the requested bearer has been established.
Remote command:
DL HARQ
The following parameters configure the HARQ procedure for downlink transmissions.
For scenarios without carrier aggregation, option R&S CMW-KS510 is required. For
scenarios with carrier aggregation, R&S CMW-KS512 is required.
DL HARQ ← DL HARQ
Enables or disables HARQ for downlink transmissions.
HARQ is disabled for scheduling type SPS.
Remote command:
Number of HARQ Transmissions ← DL HARQ
Specifies the maximum number of downlink transmissions, including initial transmis-
sions and retransmissions.
Remote command:
Redundancy Version Coding Sequence, User-Defined Sequence ← DL HARQ
The coding sequence defines the redundancy versions for repeated transmissions of a
packet. The first value of the sequence is used for initial transmissions, the second
value for the first retransmission and so on.
If the sequence is shorter than the maximum allowed number of transmissions, it is
used several times. Example: Four transmissions allowed and sequence {0,2} results
in used sequence {0,2,0,2}.
If the sequence is longer than the maximum allowed number of transmissions, the sur-
plus values have no effect. Example: Two transmissions allowed and sequence
{0,1,2,3} results in used sequence {0,1}.
You can configure a user-defined sequence or use a sequence defined by 3GPP:
●
TS 36.101
: Depending on the modulation scheme, either the sequence {0,1,2,3} or
{0,0,1,2} is used, as defined in 3GPP TS 36.101.
●
TS 36.104
: The sequence {0,2,3,1} is used, as defined in 3GPP TS 36.104.
●
User-Defined
: The user-defined sequence is used. Define first the length of the
sequence, then the sequence itself.
GUI Reference
深圳德标仪器
135-1095-0799