Power loading in MU-MIMO

摘要

Embodiments of a system and method for transmitting data from an access point in a multiple user multiple input multiple output (MU-MIMO) system are provided. A first indication of signal quality (ISQ) is received at the access point from a first station and a second ISQ is received from a second station. The access point sets a first power level and a first modulation and coding scheme (MCS) for transmission of a first aggregated media access control (MAC) protocol data unit (A-MPDU) to the first station as a function of the first ISQ and an amount of payload data corresponding to the first A-MPDU. The access point also sets a second power level and a second MCS for transmission of a second A-MPDU as a function of the second ISQ and an amount of payload data corresponding to the second A-MPDU.

主权项

1. A system for transmitting and receiving signals using multiple user multiple input multiple output (MU-MIMO), the system comprising:
a processor; a memory; one or more RE transceivers; processing circuitry to:
set a first power level for transmission of a first aggregated medium access control (MAC) protocol data unit (A-MPDU) corresponding to a first station as a function of an amount of payload data corresponding to the first A-MPDU;set a second power level for transmission of a second A-MPDU corresponding to a second station as a function of an amount of payload data corresponding to the second A-MPDU;wherein the amount of payload data corresponding to the first A-MPDU and the amount of a payload data corresponding to the second A-MPDU are different, and the first and second power levels are set to produce a similar length for the first A-MPDU and the second A-MPDU, and wherein the first and second A-MPDUs are both to be transmitted in a first frame.