Modulation and coding for multiple resource units in wireless network
AssigneeHuawei Technologies Co., Ltd.
InventorsYan Xin, Osama Aboul-Magd, Jung Hoon Suh
Life of this patent
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Abstract
Methods and devices for transmitting data in an Orthogonal Frequency-Division Multiple Access (OFDMA) wireless local area network, comprising: selecting, for a first resource unit assigned to the target station, a first modulation type; selecting, for a second resource unit assigned to the target station, a second modulation type different from the first modulation type; and modulating coded data and mapping the modulated data onto subcarriers associated with the assigned resource units based on the respective modulation types selected for each of the assigned resource units.
Claims22
A method of transmitting data in an Orthogonal Frequency-Division Multiple Access (OFDMA) wireless local area network (WLAN), comprising:
- parsing input data for transmission for a receiving station into a first data stream and a second data stream;
- modulating, using a first modulation type, data included in the first data stream and mapping the modulated data onto a first set of subcarriers associated with a first resource unit;
- modulating, using a second modulation type, data included in the second data stream and mapping the modulated data onto a second set of subcarriers associated with a second resource unit;
- and
- transmitting, in the WLAN, an orthogonal frequency division multiplexing (OFDM) symbol including the data modulated onto the first set of subcarriers and the data modulated onto the second set of subcarriers.
A station for transmitting data in an Orthogonal Frequency-Division Multiple Access (OFDMA) wireless local area network (WLAN), comprising:
- a network interface configured to send and receive signals in the WLAN;
- a processing device coupled to the network interface;
- a non-transitory storage coupled to the processing device and storing thereon instructions that, when executed by the processing device, configure the station to:
- parse input data for a receiving station into a first data stream and a second data stream;
- modulate, using a first modulation type, data included in the first data stream and map the modulated data onto a first set of subcarriers associated with a first resource unit;
- modulate, using a second modulation type, data included in the second data stream and map the modulated data onto a second set of subcarriers associated with a second resource unit;
- and
- transmit, in the WLAN, an orthogonal frequency division multiplexing (OFDM) symbol including the data modulated onto the first set of subcarriers and the data modulated onto the second set of subcarriers.
A method comprising:
- receiving, at a receiving station, a data unit transmitted in wireless local area network (WLAN), the data unit comprising a physical payload that includes an Orthogonal Frequency-Division Multiplexing (OFDM) symbol that has been transmitted in a plurality of resource units used for data modulated according to a respective modulation type, wherein the resource units include a first and second resource unit assigned to the receiving station and further resource units assigned to one or more further receiving stations, the data unit comprising a header that includes, for each of the first and second resource units, information identifying the respective modulation types used to modulate the data transmitted in the first and second resource units, respectively.
Dependencies are inferred from the claim text.