POWER LOADING IN MU-MIMO
First Claim
1. A method for transmitting data from an access point in a multiple user multiple input multiple output (MU-MIMO) system, the method comprising:
- receiving a first indication of signal quality (ISQ) from a first station;
receiving a second ISQ from a second station;
setting 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;
setting 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;
transmitting the first A-MPDU at the first power level and within a first frame to the first station; and
transmitting the second A-MPDU at the second power level and within the first frame to the second station.
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Accused Products
Abstract
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.
60 Citations
20 Claims
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1. A method for transmitting data from an access point in a multiple user multiple input multiple output (MU-MIMO) system, the method comprising:
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receiving a first indication of signal quality (ISQ) from a first station; receiving a second ISQ from a second station; setting 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; setting 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; transmitting the first A-MPDU at the first power level and within a first frame to the first station; and transmitting the second A-MPDU at the second power level and within the first frame to the second station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for transmitting signals in a multiple user multiple input multiple output (MU-MIMO) system, the apparatus comprising:
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a processor configured to; receive a first indication of signal quality (ISQ) from a first station; receive a second ISQ from a second station; set a first power level and a first 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; and set 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. - View Dependent Claims (13, 14, 15, 16)
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17. A method for transmitting data from an access point in a multiple user multiple input multiple output (MU-MIMO) system, the method comprising:
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determining a first power level and a first MCS for transmission of a first aggregated media access control (MAC) protocol data unit (A-MPDU) as a function of an amount of payload data for the first A-MPDU; determining a second power level and a second MCS for transmission of a second A-MPDU as a function of an amount of payload data for the first A-MPDU, wherein the first and second power levels and the first and second MCSs are set to produce a similar length for the first A-MPDU and the second A-MPDU; generating a first A-MPDU using a first MCS; generating a second A-MPDU using a second MCS; transmitting the first A-MPDU at the first power level; and transmitting the second A-MPDU at the second power level. - View Dependent Claims (18, 19, 20)
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Specification