Abstract:
Apparatuses, computer readable media, and methods for extending a long-training field are disclosed. An apparatus of a high-efficiency (HE) wireless local-area network (HEW) device is disclosed. The apparatus including transceiver circuitry and processing circuitry configure to determine if a HE long training field (HE-LTF) portion of a HE physical layer convergence procedure (PLCP) protocol data unit (HE-PPDU) is to be extended, and if the HE-LTF portion is to be extended, configure the HE-LTF portion to use a longer symbol duration, or one or more additional HE-LTFs. The transceiver circuitry and processing circuitry configure also to transmit the HE-PPDU in accordance with orthogonal frequency division multiple access (OFDMA). An apparatus of a HEW device includes circuitry configured to receive a HE-LTF portion of a HE-PPDU, determine if the HE-LTF portion of the HE-PPDU is extended, and if the HE-PPDU portion is extended, use the extended portion to improve channel estimates.
Abstract:
Embodiments of a master station and method for high-efficiency Wi-Fi (HEW) communication using a multi-device HEW preamble are generally described herein. In some embodiments, the master station may select a number of long-training fields (LTFs) to be included in the multi-device HEW preamble of an HEW frame. The HEW frame may comprise a plurality of links for transmission of a plurality of streams. The master station may transmit the selected number of LTFs sequentially as part of the HEW preamble and transmit a plurality of data fields to scheduled stations during an HEW control period. Each data field may correspond to one of the links and may comprise one or more streams. The selection of the number of LTFs to be included in the HEW preamble may be based on a maximum number of streams to be transmitted on a single link.
Abstract:
Apparatuses, methods, and computer readable media for resource allocation are disclosed. A high-efficiency wireless local-area network (HEW) master station is disclosed. The HEW master device may include circuitry configured to generate one or more resource allocations for each station of a plurality of stations. Each resource allocation may include an address of a corresponding station, a channel index to indicate a channel of a plurality of pre-defined channels of a bandwidth, and a sub-channel index to indicate the sub-channel bandwidth. If the sub-channel bandwidth is less than 20 MHz, each resource allocation includes a sub-channel location to indicate a sub-channel out of the multiple sub-channels of the indicated sub-channel bandwidth. The one or more resource allocations may be for a transmission opportunity in case of non-contiguous resource allocations for a single station. The circuitry may be further configured to operate in accordance with orthogonal frequency division multiple access (OFDMA).
Abstract:
Embodiments of an access point and method for high-efficiency WLAN (HEW) communication are generally described herein. In some embodiments, the access point may be configured to operate as a master station and may configure an HEW frame to include a legacy signal field (L-SIG), an HEW signal field (HEW SIG-A) following the L-SIG, and one or more HEW fields following the HEW SIG-A. The L-SIG may be configured for transmission using a legacy number of data subcarriers, a legacy number of pilot subcarriers and a number of additional reference subcarriers modulated with a known reference sequence. At least one symbol of the HEW SIG-A and the one or more HEW fields following the HEW SIG-A of the HEW frame may be configured for transmission using additional data subcarriers. The additional data subcarriers may correspond to the additional reference subcarriers of the L-SIG.
Abstract:
A device uses a first protocol to incorporate a reservation of a medium using a second protocol within the bounds of the first protocol. For example, an evolved node B (also known as an e node B or eNB) using a long term evolution over unlicensed spectrum (LTE-U) protocol can be configured to reserve unlicensed spectrum using a (wireless local area network) WLAN message placed within a muting gap within the LAA protocol. In one embodiment, the eNB selects to broadcast the WLAN reservation message using a set of options including: (1) from a control channel region of LAA, (2) from a muting gap indicated by a reservation muting symbol pattern indicator, (3) from a time division duplex (TDD) guard period (GP), (4) from a TDD uplink pilot time slot (UpPTS), (5) from an empty uplink (UL) subframe or (6) from a sounding reference signal (SRS).
Abstract:
Methods, apparatus, and computer-readable media are described to decode a geolocation database dependent (GDD) enabling signal sent on a lower band. A 6 GHz band element is decoded. The 6 GHz band element includes a list of 6 GHz channel numbers. Data is encoded for transmission at 6 GHz on a 6 GHz channel associated with a 6 GHz channel number.
Abstract:
For example, an apparatus may include a segment parser to parse scrambled data bits of a PPDU into a first plurality of data bits and a second plurality of data bits, the PPDU to be transmitted in an OFDM transmission over an aggregated bandwidth comprising a first channel in a first frequency band and a second channel in a second frequency band; a first baseband processing block to encode and modulate the first plurality of data bits according to a first OFDM MCS for transmission over the first channel in the first frequency band; and a second baseband block to encode and modulate the second plurality of data bits according to a second OFDM MCS for transmission over the second channel in the second frequency band.
Abstract:
Methods, devices, and systems for retransmission of wake-up signals from a first station to a second station over a wireless network are disclosed. In some aspects, a wake-up signal is encoded for transmission to the second station. While the first station is waiting for an acknowledgment of the wake-up signal from the second station, the second station may retransmit the wake up signal and/or encode a packet for transmission to a third station. In some aspects, whether the wake-up signal is retransmitted is based in part, on at least one of whether a number of timeout events for wake-up signals transmitted to the second station exceeds a maximum timeouts threshold, whether a number of wake-up signals transmitted to the second station exceeds a maximum wake-up signals threshold; or whether a maximum predetermined elapsed time since a first wake-up signal was transmitted to the second station is exceeded.
Abstract:
Example systems, methods, and devices for channel access in dense wireless networks are discussed. More specifically, methods may include transmitting one or more trigger frames from an access point to one or more communication stations, the one or more trigger frames comprising a plurality of components, the plurality of components indicating whether trigger frames within a beacon interval are scheduled in a periodic or aperiodic manner, and if periodic trigger frames are scheduled, then indicating a countdown to the next trigger frame, and if aperiodic trigger frames are scheduled, then indicating the time to the next trigger frame scheduled by the access point. Methods, apparatus, and systems described herein can be applied to 802.11ax or any other wireless standard.
Abstract:
Embodiments of an access point and method for high-efficiency WLAN (HEW) communication are generally described herein. In some embodiments, the access point may be configured to operate as a master station and may configure an HEW frame to include a legacy signal field (L-SIG), an HEW signal field (HEW SIG-A) following the L-SIG, and one or more HEW fields following the HEW SIG-A. The L-SIG may be configured for transmission using a legacy number of data subcarriers, a legacy number of pilot subcarriers and a number of additional reference subcarriers modulated with a known reference sequence. At least one symbol of the HEW SIG-A and the one or more HEW fields following the HEW SIG-A of the HEW frame may be configured for transmission using additional data subcarriers. The additional data subcarriers may correspond to the additional reference subcarriers of the L-SIG.