System and method for orthogonal frequency division multiple access communications
AssigneeHuawei Technologies Co., Ltd.
InventorsOsama Aboul-Magd, Jung Hoon Suh, Kwok Shum Au, Sheng Sun
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Abstract
A method for operating a communications device adapted for orthogonal frequency division multiple access (OFDMA) wireless local area network (WLAN) communications includes generating an OFDMA preamble comprising an OFDMA signal (SIG) field including an indication of an allocation of an OFDMA resource to a station, and transmitting the OFDMA preamble in a frame.
Claims14
A method for orthogonal frequency division multiple access (OFDMA) wireless local area network (WLAN) communications, the method comprising:
- subdividing, by a communications device, a communications channel into subcarrier groups each containing a plurality of subcarriers;
- allocating, by the communications device, the subcarrier groups to groups of stations to produce subcarrier group allocations;
- allocating, by the communications device, spatial streams to the groups of stations to produce spatial stream allocations;
- generating, by the communications device, an indication of an allocation of OFDMA resources in accordance with the subcarrier group allocations and the spatial stream allocations;
- generating, by the communications device, a High Efficiency WLAN (HEW) preamble comprising a HEW signal (SIG) B field indicating the allocation of an OFDMA resource to a station, the HEW SIG B field comprising a station specific data field, the station specific data field including:
- a station identifier (STAID) subfield identifying the station associated with the station specific data field, and
- a number of spatial streams (NSTS) field indicating the number of spatial streams allocated to the station associated with the station specific data field;
- and
- transmitting, by the communications device, the HEW preamble in a frame.
A method for orthogonal frequency division multiple access (OFDMA) wireless local area network (WLAN) communications, the method comprising:
- receiving, by a communications device, a frame including a High Efficiency WLAN (HEW) preamble comprising a HEW signal (SIG) B field, the HEW SIG B field indicating an allocation of an OFDMA resource to a station, the HEW SIG B field comprising a station specific data field, the station specific data field including:
- a station identifier (STAID) subfield identifying the station associated with the station specific data field, and
- a number of spatial streams (NSTS) field indicating the number of spatial streams allocated to the station associated with the station specific data field;
- and
- receiving, by the communications device, a payload of the frame including a data transmission in accordance with the allocation.
A communications device providing orthogonal frequency division multiple access (OFDMA) wireless local area network (WLAN) communications, the communications device comprising:
- a non-transitory memory storage containing instructions;
- and
- one or more processors in communication with the non-transitory memory storage, wherein the one or more processors execute the instructions to:
- subdivide a communications channel into subcarrier groups each containing a plurality of subcarriers;
- allocate the subcarrier groups to groups of stations to produce subcarrier group allocations;
- allocate spatial streams to the groups of stations to produce spatial stream allocations;
- generate an indication of an allocation of an OFDMA resource in accordance with the subcarrier group allocations and the spatial stream allocations;
- generate a High Efficiency WLAN (HEW) preamble comprising an HEW signal (SIG) B field, the HEW SIG B field indicating the allocation of the OFDMA resource to a station, the HEW SIG B field comprising a station specific data field, the station specific data field including:
- a station identifier (STAID) subfield identifying the station associated with the station specific data field, and
- a number of spatial streams (NSTS) field indicating spatial stream assignments for each station in a group of stations associated with the station specific data field;
- and
- transmit the HEW preamble in a frame.
A communications device providing orthogonal frequency division multiple access (OFDMA) wireless local area network (WLAN) communications, the communications device comprising:
- a non-transitory memory storage comprising instructions;
- and
- one or more processors in communication with the non-transitory memory storage, wherein the one or more processors execute the instructions to:
- receive a header of a frame including a HEW preamble comprising a HEW signal (SIG) B field indicating an allocation of an OFDMA resource to a station, the HEW SIG B field comprising a station specific data field, the station specific data field including:
- a station identifier (STAID) identifying the station associated with the station specific data field, and
- a number of spatial streams (NSTS) field containing spatial stream assignments for each station in a group of stations associated with the station specific data field;
- and
- receive a payload of the frame including a data transmission in accordance with the allocation.
Dependencies are inferred from the claim text.