Abstract:
A method includes generating a data packet at a source device for transmission via an Institute of Electrical and Electronics Engineers 802.11 wireless network. The data packet includes multiple data symbols that are duplicated in the data packet. At least a portion of a preamble of the data packet is not duplicated in the data packet. The portion of the preamble indicates that the packet is a low rate mode packet. The method also includes transmitting the data packet from the source device to a destination device via the wireless network.
Abstract:
Systems and methods for communicating packets having a plurality of formats are described herein. In some aspects, a signal (SIG) field in the preamble of a packet may indicate whether an extension field, such as an extension SIG field or SIG-B field, is included in the packet. In another aspect, one or more detectors may be used to auto-detect packets formatted as one of at least two different formats based on a short training field (STF) of a received packet. In some aspects, along training field (LTF) in the preamble of a packet may indicate whether the payload is repetition coded.
Abstract:
An apparatus for wireless communication is provided. The apparatus includes a receiver configured to receive a packet including a first signal field and a second signal field, the first signal field including a single orthogonal frequency division (OFD) symbol including a cyclic redundancy check (CRC) field, a basic service set (BSS) identification, and a tail. The apparatus further includes a processor configured to determine a communication protocol of the packet based on the CRC field.
Abstract:
Methods and apparatus for providing wireless messages according to various tone plans can include a method of wireless communication. The method includes allocating a first allocation unit associated with a first tone plan having a first number of tones, for communication of one or more wireless messages by a wireless device. The method further includes allocating a second allocation unit, associated with a second tone plan having a second number of tones different from the first number of tones, for communication of one or more wireless messages by the wireless device. The method further includes selecting a combined tone plan for the wireless device based on at least the first tone plan and the second tone plan. The method further includes providing a wireless message for transmission by the wireless device according to the combined tone plan.
Abstract:
Methods and systems disclosed provide for clear channel assessment of first and second communication channels. In one aspect, a first primary channel has a first frequency spectrum bandwidth and a second primary channel has a second frequency spectrum bandwidth including the first frequency spectrum bandwidth. A method may include performing a first back-off procedure based on whether the first primary channel is idle if a transmission bandwidth for a wireless message is the first frequency spectrum bandwidth, performing a second back-off procedure based on whether the second primary channel is idle if the transmission bandwidth for the wireless message is greater than the first frequency spectrum bandwidth, and transmitting the wireless message based on a completion of the performed back off procedure.
Abstract:
A method of wirelessly communicating a packet including a first portion for transmission over a channel of a first transmission type and a second portion for transmission over a channel of a second transmission type. In one aspect, the method includes generating a first signal field indicative of a channel assignment to the first transmission type. The method further includes generating a second signal field indicative of a channel assignment to the second transmission type. The method further includes transmitting, at a same time, the first signal field duplicated over each channel of the first transmission type, and the second signal field duplicated over each channel of the second transmission type.
Abstract:
Systems, methods, and devices detect and managing the presence of bursty interference on a wireless communication system. A method of detecting the presence of bursty interference on a wireless network includes receiving, at a wireless device, a message from a transmitting device. The method further includes determining whether the message includes errors caused by bursty interference. The method further includes suspending a channel tracking when bursty interference is detected. The method may further include reporting bursty interference to the transmitting device when bursty interference is detected.
Abstract:
A method includes selecting a frame format for use in transmission of a packet via a wireless network. The transmission is associated with a particular bandwidth. The selected frame format is a first frame format if the particular bandwidth is equal to a threshold bandwidth. The selected frame format is the first frame format or a second frame format if the particular bandwidth is greater than the threshold bandwidth. The second frame format includes a first portion and a second portion. The first portion includes a short training field (STF), a long training field, and a signal A field, and the second portion includes a data portion including a second STF, one or more signal B fields, and a data field. The method further includes generating the packet in accordance with the selected frame format and one or more timing parameters and sending the packet.
Abstract:
Methods and apparatus methods and apparatus for providing wireless messages according to various tone plans. One aspect of the disclosure provides an apparatus including a processing system. The processing system is configured to select from one of a 256-, 512-, 1024-, and 2048-tone plan for wireless communication of a message. The processing system is further configured to, upon selecting the 256-tone plan, provide the message for transmission over a 20 MHz bandwidth. The processing system is further configured to, upon selecting the 512-tone plan, provide the message for transmission over a 40 MHz bandwidth. The processing system is further configured to, upon selecting the 1024-tone plan, provide the message for transmission over a 80 MHz bandwidth. The processing system is further configured to, upon selecting the 2048-tone plan, provide the message for transmission over a 160 MHz bandwidth.
Abstract:
A method includes receiving, at a wireless device, a frame via a sub-1 gigahertz (GHz) wireless network. The frame includes a signal (SIG) unit including a length field and an aggregation field. The length field may be interpreted as a number of bytes or as a number of symbols based on a value of the aggregation field and based on whether the frame is associated with a 1 megahertz (MHz) bandwidth mode, based on whether the frame includes either a short format preamble or a long format preamble, or based on whether the frame is determined to be a single user (SU) frame or a multi user (MU) frame.