Transmission power control for distributed-tone resource units and multi-resource units in 6GHz low-power indoor systems

An apparatus, comprising:

• a transceiver configured to transmit and receive wirelessly;
• and
• a processor coupled to the transceiver and configured to perform operations comprising:
• distributing subcarriers of a resource unit (RU) or a multi-RU (MRU) over a physical-layer protocol data unit (PPDU) bandwidth or a frequency subblock of a bandwidth to generate a distributed-tone RU (dRU) or a distributed MRU (dMRU) associated with an uplink (UL) trigger-based (TB) PPDU comprising at least an extremely-high-throughput (EHT) short training field (EHT-STF), an EHT long training field (EHT-LTF), and a payload of data;
• and
• transmitting, via the transceiver, the dRU or dMRU associated with the UL TB PPDU with transmission power control (TPC) such that symbols associated with the EHT-STF are transmitted with a first power and symbols associated with the EHT-LTF and the payload are transmitted with a second power,
• wherein an actual transmission power of the dRU or dMRU associated with the UL TB PPDU is limited to a minimum among:
• a downlink (DL) path loss (PL) plus a target received signal strength indicator (RSSI),
• a maximum allowed transmission power for the symbols associated with the EHT-LTF and the payload, and
• a maximum allowed transmission power in a 6 GHz low-power indoor (LPI) system.