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wifi: Fix bits not cleared before updating Basic HE-MCS And NSS Set in HE Operation IE

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This commit is contained in:
Sébastien Deronne
2023-01-16 18:57:58 +01:00
parent ff55f48be4
commit a534b60ce0
1 changed files with 13 additions and 5 deletions
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18
src/wifi/model/he/he-operation.cc
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@@ -88,19 +88,27 @@ void
HeOperation::SetMaxHeMcsPerNss(uint8_t nss, uint8_t maxHeMcs)
{
NS_ASSERT((maxHeMcs >= 7 && maxHeMcs <= 11) && (nss >= 1 && nss <= 8));
uint8_t val = 3; // 3 means not supported
if (maxHeMcs > 9) // MCS 0 - 11
// IEEE 802.11ax-2021 9.4.2.248.4 Supported HE-MCS And NSS Set field
uint8_t val = 0x03; // not supported
if (maxHeMcs > 9) // MCS 0 - 11
{
val = 2;
val = 0x02;
}
else if (maxHeMcs > 7) // MCS 0 - 9
{
val = 1;
val = 0x01;
}
else if (maxHeMcs == 7) // MCS 0 - 7
{
val = 0;
val = 0x01;
}
// clear bits for that nss
const uint16_t mask = ~(0x03 << ((nss - 1) * 2));
m_basicHeMcsAndNssSet &= mask;
// update bits for that nss
m_basicHeMcsAndNssSet |= ((val & 0x03) << ((nss - 1) * 2));
}