Abstract:
This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for techniques for 4096 Quadrature Amplitude Modulation (4096-QAM) with Uniform Constellations and Non-uniform Constellations and 16384 Quadrature Amplitude Modulation (16384-QAM) with Uniform Constellations and Non-uniform Constellations in Wireless Local Area Networks (WLAN). These 4096-QAM and 16384-QAM techniques can be implemented in a QAM modulator circuit on the transmit side and in a QAM demodulator circuit on the receive side to increase peak data rate without the need for additional transmission power or bandwidth.
Abstract:
Techniques are provided for constructing or determining a training sequence as a part of transmission preamble to minimize (or at least reduce) a peak-to-average power ratio (PAPR) at a transmitting node. In one example, a long training field (LTF) sequence of a preamble is determined that combines a set of interpolating sequences with LTF tone values. The LTF tone values may cover at least a portion of bandwidth of a first size, with each of the LTF tone values repeated for different subcarriers. The phases of tones of the LTF sequence may be rotated per bandwidth of the first size and certain tones of the LTF sequence may have a stream of values at pilot locations. For example, the phases of tones of the LTF sequence may be rotated in an effort to reduce PAPR during a transmission of the LTF sequence.
Abstract:
A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus is configured to determine a plurality of resource units for communication. The apparatus is configured to generate a set of pilot signals in at least one resource unit of the plurality of resource units. The apparatus is configured to transmit the generated set of pilot signals in the at least one resource unit of the plurality of resource units.
Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided. In one aspect, an apparatus includes a processor configured to allocate a plurality of resource blocks for wireless communication. The processor is further configured to transmit data on a first resource block of the plurality of resource blocks, in which the first resource block is associated with a first set of tone indices and a second set of tone indices, and the first set of tone indices is a set of nominal tone indices that is logically mapped to a second set of tone indices that is a set of physical tone indices.
Abstract:
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a wireless device. The wireless device determines a first subset of resource units (RUs) of a set of RUs that extends across a bandwidth of a channel in a transmission time period, the first subset of RUs including less RUs than the set of RUs, each RU of the set of RUs including at least 26 tones. The wireless device communicates at least one of data or control information in the first subset of the RUs.
Abstract:
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.
Abstract:
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.
Abstract:
This disclosure provides methods, components, devices and systems for 480 and 640 megahertz (MHz) transmission in Wi-Fi. Some aspects more specifically relate to inclusion of a bandwidth field and a bandwidth extension field in a preamble of a physical layer protocol data unit (PPDU) that jointly indicate that the channel bandwidth of the PPDU is a contiguous 480 MHz channel bandwidth or a 640 MHz channel bandwidth. In some aspects, parameters of the PPDU may be defined based on the PPDU occupying a 480 MHz or 640 MHz bandwidth. For example, the parameters may include tone plans, allowed puncturing patterns, signaling of the puncturing plans, signaling of the resource unit allocation, a short training field, a long training field, pilot signal sequences, phase shifts, a segment parser, and/or a spectral mask.
Abstract:
This disclosure provides methods, devices and systems for increasing carrier frequencies for wireless communications in wireless local area networks (WLANs). Some implementations more specifically relate to BSS discovery and association techniques that support wireless communications on carrier frequencies above 7 GHz. In some aspects, an access point (AP) may communicate using beamforming on a wireless communication link operating at a carrier frequency above 7 GHZ (the “directional link”) while offloading the BSS discovery and association procedures needed to support such communications onto a wireless communication link operating at a carrier frequency below 7 GHZ (the “anchor link”). In some implementations, the AP may perform a beamforming training operation with a STA over the directional link upon associating with the STA over the anchor link. In such implementations, the AP may communicate with the STA over the directional link using a beam derived from the beamforming training operation.
Abstract:
Methods and systems for amplitude shaping encoding and indicating boundaries in bitstreams are described. A transmitting device may insert, into a bitstream to indicate a boundary, a sequence of amplitude bits unassociated with patterns of bit values in a lookup table used for the encoding. A transmitting device may monitor a length of the amplitude bits in a bitstream during the encoding and stop the encoding on information bits at an end of a current data unit responsive to the length reaching a threshold. A transmitting device may monitor the length of the information bits and, for each data unit, determine whether a boundary is reached. Responsive to determining that a boundary is reached, the transmitting device may not include, before the boundary, amplitude bits generated based on the information bits in the data unit, and add padding bits after a last amplitude bit before the boundary.