摘要:
An apparatus includes an interleaver configured to interleave encoded data and to output a series of interleaved bits to be transmitted via a 1 MHz orthogonal frequency-division multiplexing (OFDM) transmission. The apparatus also includes a modulator configured to modulate the interleaved bits and a transform module configured to transform the modulated bits. A transmit module of the apparatus is configured to transmit the transformed bits included in one or more spatial streams of the 1 MHz OFDM transmission.
摘要:
Certain aspects of the present disclosure provide techniques and apparatus for frequency interleaving for use with 80 MHz transmissions, such as those in the IEEE 802.11ac amendment to the IEEE 802.11 standard. According to certain aspects, frequency interleaving spatial streams for transmissions on channels having widths of about 80 MHz may comprise using an interleaving depth of 26. The number of frequency rotations may be 58 (or 29) for up to four (or up to eight) spatial streams. According to certain aspects, frequency interleaving up to eight (or up to four) spatial streams for transmission on channels having widths of about 80 MHz may comprise performing frequency rotation for each of the spatial streams based on a frequency rotation index=[0 4 2 6 1 5 3 7] (or=[0 2 1 3]).
摘要:
An apparatus includes an interleaver configured to interleave encoded data and to output a series of interleaved bits to be transmitted via a 1 MHz orthogonal frequency-division multiplexing (OFDM) transmission. The apparatus also includes a modulator configured to modulate the interleaved bits and a transform module configured to transform the modulated bits. A transmit module of the apparatus is configured to transmit the transformed bits included in one or more spatial streams of the 1 MHz OFDM transmission.
摘要:
Certain aspects of the present disclosure present a technique for enabling a receiver to detect mode of transmission of a signal based on a common field transmitted to all the receivers. The proposed technique includes frame structure in which information about the transmission mode is transmitted in a first portion of a SIG field to all the receivers.
摘要:
Certain aspects of the present disclosure present a technique for enabling a receiver to detect mode of transmission of a signal based on a common field transmitted to all the receivers. The proposed technique includes frame structure in which information about the transmission mode is transmitted in a first portion of a SIG field to all the receivers.
摘要:
Apparatus and methods for communicating and applying training sequences are described herein. For example, provided is a method for generating a short training field (STF) sequence comprising thirty two values or less. The STF sequence can include a first subset of values including zero and non-zero values. The non-zero values can be located at indices of the first subset that are at least a multiple of two, and can be a multiple of four. The STF sequence includes a second subset of zero values that can include all values not included within the first subset. The method further includes transmitting a data unit comprising the STF sequence over a wireless channel. In another example, a method is provided that includes generating a long training field (LTF) sequence comprising thirty two values or less, and transmitting a data unit comprising the LTF sequence over a wireless channel.
摘要:
Certain aspects of the present disclosure relate to a technique for constructing a short training field (STF) sequence of a Very High Throughput (VHT) preamble in an effort to reduce a peak-to-average power ratio (PAPR). The constructed STF sequence may feature a specific repetition period.
摘要:
Certain aspects of the present disclosure relate to techniques for constructing a VHT-SIG field of a transmission preamble in a manner that may reduce peak-to-average power ratio (PAPR) of the transmission.
摘要:
Certain aspects of the present disclosure relate to a technique for constructing a short training field (STF) sequence of a Very High Throughput (VHT) preamble in an effort to reduce a peak-to-average power ratio (PAPR). The constructed STF sequence may feature a specific repetition period.
摘要:
Certain aspects of the present disclosure relate to techniques for constructing a training sequence as a part of transmission preamble in an effort to minimize (or at least reduce) a peak-to-average power ratio (PAPR) at a transmitting node.