Abstract: Embodiments can include, by operation of an ambient wireless device, wirelessly receiving a wakeup data frame having a broadcast-type address, a first random number (R1) and a received hash value. Using ambient energy, a hashing operation can be executed using at least a previously stored first device ID and R1 to generate a local hash value to validate the wakeup frame. In response to a validated wakeup frame, an address (Aa), second random value (R2), and an encryption key can be generated, the latter using at least a previously stored secret value (P). Using ambient energy, UL data can be encrypted using the encryption key. A response data frame can be transmitted that includes Aa as a source address, R1, R2, and the encrypted UL data. The ambient energy can be derived from radio frequency signals present in an operating environment. Corresponding devices and systems are also disclosed.

Abstract: Methods and apparatuses of dynamic subband operation (DSO) are provided. A station (STA) device receives a subband switch control frame from an access point (AP). The subband switch control frame indicates a transition, by the STA device, to a secondary channel. In response to receiving the subband switch control frame, the STA device transitions from a primary channel to the secondary channel. The subband switch control frame indicates one or more channels in the secondary channel, and the one or more channels are a subset of total available channels in the secondary channel.

Abstract: A method includes determining, by an ambient power (AMP) device that harvests environmental energy, one or more first authentication and key management (AKM) parameters. The method includes broadcasting, to powered wireless devices, an initialization request frame including one or more frame-exchange parameters, the one or more first AKM parameters, and encrypted content with which a powered wireless device of the powered wireless devices is to establish an encrypted wireless communication session with the AMP device. The content that was encrypted can include an identifier of the AMP device that is also known to the powered wireless device. The method includes using, by the AMP device within the initialization request frame, a first random address as a source media access control (MAC) address and one of a broadcast address or a group address as a destination MAC address.

Abstract: Systems and methods are described herein for implementing a wakeup radio protocol. An example method may include entering a wireless module of a wireless client into a power saving mode. The method includes detecting, by a wakeup radio, an RF signal exhibiting a pattern having a sequence of values. The method includes determining, by a processing device of the wakeup radio, that the pattern matches a wakeup word specified for the wireless client to cause the wireless module to wake from the power saving mode. The method includes sending a signal to the wireless module to cause the wireless module to transition from the power saving mode to an active mode.

Abstract: Systems and methods are described herein for embedding a wakeup signal in an Orthogonal Frequency Division Multiplexed (OFDM) data packet to implement a wakeup radio protocol. An example method may include receiving data to be wirelessly transmitted to a wireless client via an Orthogonal Frequency Division Multiplexed (OFDM) wireless communication protocol. The method may also include identifying one or more wakeup signal parameters associated with the wireless client, wherein the wakeup signal parameters comprise a selected sub-carrier. The method may also include, during transmission of a data packet, over-riding the selected sub-carrier of the data packet with a wakeup signal to cause the wireless client to wake from a power saving mode.

Abstract: A method includes backscattering, by an ambient power (AMP) device that harvests environmental energy, radio frequency (RF) energy received in a wireless signal from at least one of a powered wireless device or a helper wireless device. The method includes causing, by the AMP device, an initialization request frame to be transmitted to the powered wireless device within a backscattered signal using a first spreading code. The first spreading code can encode a predetermined bit pattern, which is recognizable by the powered wireless device, and an identifier (ID) of the AMP device. The method includes receiving, by the AMP device, from the powered wireless device, an ID request frame in response to the powered wireless device detecting the initialization request frame and recognizing the ID of the AMP device. The ID request frame can trigger an attempt to initiate an encrypted wireless communication session with the powered wireless device.

Abstract: Systems and methods described herein determine, by a processing device executing on a requesting station, a target wake time (TWT) buffer size, wherein the TWT buffer size indicates a buffer size to allocate at a responding station when the requesting station is in a sleep mode. The systems and methods insert, by the requesting station, a TWT buffer size request into a request message, wherein the TWT buffer size request comprises the TWT buffer size. In turn, the systems and methods transmit the request message from the requesting station to the responding station.

Abstract: A method includes transmitting, by an anchor wireless device, a beacon frame signal to client wireless devices, which are ambient power (AMP) devices. The beacon frame signal advertises at least a first service period during which at least a subset of the client wireless devices are to transmit. The method includes transmitting, by the anchor wireless device, during the first service period, a first wireless signal including a data packet with a command frame to activate the subset of the client wireless devices into a transmission mode. The method includes receiving, from the subset of the client wireless devices in response to detecting the command frame, second wireless signals each including a response data packet. The second wireless signals are received according to a pre-programmed schedule that deconflict transmissions by the subset of the client wireless devices.

Abstract: Systems, methods, and devices enhance power performance of wireless devices. Methods include beginning a service period between wireless devices, the service period being configured in accordance with a wireless communications protocol, and determining, using one or more processing elements, whether or not there has been activity during a designated period of time within the service period. Methods further include determining, using the one or more processing elements, whether or not the service period should be terminated prior to a scheduled end of the service period, the determining being based, at least in part, on the activity.

Abstract: A wireless device includes one or more receive antennas, a processing device coupled to the one or more receive antennas, and memory storing instructions, which when executed by the processing device, cause the processing device to perform operations. In embodiments, these operations include generating, in response to a null data packet received from an anchor wireless device, channel state information (CSI) data to estimate a wireless channel and processing the CSI data using an encoder neural network to generate a latent vector of compressed CSI data. The operations further include transmitting, via a coupled transmit antenna, a packet containing the latent vector to the anchor wireless device for use in determining beamforming to communicate with the wireless device and detect changes in the wireless channel.

Abstract: A method includes broadcasting, by a powered wireless device, a survey request frame to a plurality of ambient (AMP) devices that harvest environmental energy, wherein the survey request frame comprises a unique public key to be used by each AMP device, of the plurality of AMP devices, to generate a survey response frame. The method includes using, within the survey request frame, a first random address as a source media access control (MAC) address and one of a broadcast address or a group address as a destination MAC address. The method includes determining, from each respective survey response frame, whether a corresponding AMP device of the plurality of AMP devices is accessible from which to securely obtain data.

Abstract: A system and method of secure transactions with ambient wireless devices. The method includes receiving, from a user device via a first communication protocol, a request for data associated with a second device. The method includes determining, based on the request, a capability of a first device to access the data from the second device via a second communication. The method includes sending, by one or more processors to the first device via the first communication protocol, a message to cause the first device to access the data from the second device using a second communication protocol and send the data to the processing device using the first communication protocol. The method includes granting or denying the user device with access to the data.

Abstract: A wireless device includes a front end and a processor coupled to the front end. The processor determines that a second wireless device within operative communication range of the front end is to transmit channel state information (CSI) packets at a predetermined schedule. The processor causes the wireless device to enter a power-save mode. The processor causes the wireless device to exit the power-save mode at a frequency based on the predetermined schedule of the second wireless device transmitting the CSI packets and causes the front end to intercept the CSI packets.

Abstract: A method includes determining, by an ambient power (AMP) device that harvests environmental energy, one or more first authentication and key management (AKM) parameters. The method includes broadcasting, to powered wireless devices, an initialization request frame including one or more frame-exchange parameters, the one or more first AKM parameters, and encrypted content with which a powered wireless device of the powered wireless devices is to establish an encrypted wireless communication session with the AMP device. The content that was encrypted can include an identifier of the AMP device that is also known to the powered wireless device. The method includes using, by the AMP device within the initialization request frame, a first random address as a source media access control (MAC) address and one of a broadcast address or a group address as a destination MAC address.

Abstract: A method includes backscattering, by an ambient power (AMP) device that harvests environmental energy, radio frequency (RF) energy received in a wireless signal from at least one of a powered wireless device or a helper wireless device. The method includes causing, by the AMP device, an initialization request frame to be transmitted to the powered wireless device within a backscattered signal using a first spreading code. The first spreading code can encode a predetermined bit pattern, which is recognizable by the powered wireless device, and an identifier (ID) of the AMP device. The method includes receiving, by the AMP device, from the powered wireless device, an ID request frame in response to the powered wireless device detecting the initialization request frame and recognizing the ID of the AMP device. The ID request frame can trigger an attempt to initiate an encrypted wireless communication session with the powered wireless device.

Abstract: A method includes broadcasting, by a powered wireless device, a survey request frame to a plurality of ambient (AMP) devices that harvest environmental energy, wherein the survey request frame comprises a unique public key to be used by each AMP device, of the plurality of AMP devices, to generate a survey response frame. The method includes using, within the survey request frame, a first random address as a source media access control (MAC) address and one of a broadcast address or a group address as a destination MAC address. The method includes determining, from each respective survey response frame, whether a corresponding AMP device of the plurality of AMP devices is accessible from which to securely obtain data.

Abstract: A method for receiving, by an ambient power (AMP) device that harvests environmental energy, an identification (ID) request frame from a powered wireless device. The ID request frame includes one or more frame-exchange parameters and an authentication and key management (AKM) method. The method includes retrieving, from memory, a secret that is shared with the powered wireless device, determining, using the secret, one or more first AKM parameters, and transmitting, to the powered wireless device, by the AMP device, an ID response frame including an ID of the AMP device, at least one of the one or more frame-exchange parameters and the one or more AKM parameters with which the powered wireless device is to be mutually authenticated with the AMP device and to generate an encryption key to initiate an encrypted wireless communication session.

Abstract: A method includes receiving, by an access point (AP) device operating in dual bands, a request-to-send (RTS) frame from a peer wireless device. The method includes determining whether a channel-access period specified by the RTS frame exceeds a remaining on-channel time for a wireless band during time-division multiplexing transmission. The method includes, in response to the channel-access period of the RTS frame exceeding the remaining on-channel time, transmitting, by the AP device, a clear-to-send acknowledgement (CTS-A) frame that reserves the channel-access period for the AP device.

Abstract: Systems, methods, and devices manage associations between wireless devices. Methods include identifying a plurality of wireless devices communicatively coupled to an access point and generating, using one or more processing elements, a plurality of groups of wireless devices based, at least in part, on a plurality of device classification parameters associated with the plurality of wireless devices. Methods further include generating, using the one or more processing elements, a plurality of containers for the plurality of groups of wireless devices based on network configuration information, and implementing, using the one or more processing elements, the plurality of containers in the access point, wherein each of the plurality of groups of wireless devices has at least one associated container.

Abstract: A method including determining, by an ambient power (AMP) device that harvests environmental energy, one or more first authentication and key management (AKM) parameters, and transmitting, by the AMP device to a powered wireless device, an initialization request frame comprising one or more frame-exchange parameters and the one or more first AKM parameters with which the powered wireless device is to establish an encrypted wireless communication session with the AMP device.