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US 2017/0324598 A1Published application
System and Method for High Efficiency Wireless Local Area Network Communications
AssigneeHuawei Technologies Co., Ltd.
InventorsJung Hoon Suh, Peiying Zhu, Osama Aboul-Magd, Kwok Shum Au, Sheng Sun
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Abstract
System and method embodiments are provided for high efficiency wireless communications. In an embodiment, a method in a network component for transmitting a frame of two different fast Fourier transform (FFT) sizes includes generating a frame, wherein the frame comprises orthogonal frequency-division multiplexing (OFDM) symbols in two different FFT sizes, wherein the frame comprises a first portion and a second portion, wherein the first portion comprises a first FFT size and the second portion comprises a second FFT size; and transmitting the frame during a single transmission opportunity.
Claims30
A method in a network component for transmitting a frame of two different fast Fourier transform (FFT) sizes, comprising:
- generating a frame, wherein the frame comprises orthogonal frequency-division multiplexing (OFDM) symbols in two different FFT sizes, wherein the frame comprises a preamble portion and a data portion, wherein the preamble portion comprises a first FFT size and the data portion comprises a second FFT size, wherein the first FFT size and the second FFT size are different, and wherein the second FFT size is a high efficiency wireless local area network (HEW) FFT size, wherein at least a portion of the preamble is modulated according to a first modulation scheme and at least a portion of the preamble is modulated according to a second modulation scheme, wherein the first modulation scheme is binary phase-shift keying (BPSK) modulation and the second modulation scheme is a higher order modulation than BPSK modulation;
- and
- transmitting the frame during a single transmission opportunity.
A wirelessly enabled network component, comprising:
- a processor;
- and
- a computer readable storage medium storing programming for execution by the processor, the programming including instructions to:
- generate a frame, wherein the frame comprises orthogonal frequency-division multiplexing (OFDM) symbols in two different fast Fourier transform (FFT) sizes, wherein the frame comprises a preamble portion and a data portion, wherein the preamble portion comprises a first FFT size and the data portion comprises a second FFT size, wherein the first FFT size and the second FFT size are different, wherein the second FFT size is a high efficiency wireless local area network (HEW) FFT size, wherein at least a portion of the preamble is modulated according to a first modulation scheme and at least a portion of the preamble is modulated according to a second modulation scheme, wherein the first modulation scheme is binary phase-shift keying (BPSK) modulation and the second modulation scheme is a higher order modulation than BPSK modulation;
- and
- transmit the frame during a single transmission opportunity.
3 more elements
A method in a wireless network device, comprising:
- receiving a frame, wherein the frame comprises orthogonal frequency-division multiplexing (OFDM) symbols in two different FFT sizes, wherein the frame comprises a preamble portion and a data portion, wherein the preamble portion comprises a first FFT size and the data portion comprises a second FFT size, wherein the first FFT size and the second FFT size are different, and wherein the second FFT size is a high efficiency wireless local area network (HEW) FFT size, wherein at least a portion of the preamble is modulated according to a first modulation scheme and at least a portion of the preamble is modulated according to a second modulation scheme, wherein the first modulation scheme is binary phase-shift keying (BPSK) modulation and the second modulation scheme is a higher order modulation than BPSK modulation;
- decoding the preamble portion according to the first FFT size;
- and
- decoding the data portion according to the second FFT size.
1 more element
A wireless system, comprising:
- a transmitter;
- and
- a processor coupled to the transmitter, wherein the processor is configured to generate a frame, wherein the frame comprises orthogonal frequency-division multiplexing (OFDM) symbols in two different fast Fourier transform (FFT) sizes, wherein the frame comprises a preamble portion and a data portion, wherein the preamble portion comprises a first FFT size and the data portion comprises a second FFT size, wherein the first FFT size and the second FFT size are different, and wherein the second FFT size is a high efficiency wireless local area network (HEW) FFT size, wherein at least a portion of the preamble is modulated according to a first modulation scheme and at least a portion of the preamble is modulated according to a second modulation scheme, wherein the first modulation scheme is binary phase-shift keying (BPSK) modulation and the second modulation scheme is a higher order modulation than BPSK modulation n, and wherein the processor is further configured to cause the transmitter to transmit the frame during a single transmission opportunity.
Dependencies are inferred from the claim text.