Abstract: Aspects of the disclosure provide a method for service discovery. The method includes receiving a first service advertisement by a first device. The first service advertisement includes at least a service of a second device. Further, the method include updating a service directory of the first device to include the service of the second device, and transmitting a second service advertisement by the first device. The second service advertisement includes at least the service of the second device, and can be used by a third device to effect use of the service of the second device.

Abstract: A client network device includes a physical-layer device, a parameter module, an adjusting module, and a power management module. The physical-layer device, during each client traffic window that occur within a predetermined period, (i) transmits, over a network, a request signal from the client network device to discover other network devices in the network, and (ii) receives, from one or more of the other network devices, corresponding responses to the request signal. The parameter module monitors a first parameter of the client network device. The adjusting module adjusts a second parameter based on the first parameter. The second parameter indicates a number of the client traffic windows to occur within the predetermined period. The power management module transitions the client network device from an active mode to a sleep mode between consecutive ones of the number of the client traffic windows that occur within the predetermined period.

Abstract: A device for wirelessly communicating between one or more mobile communication devices over a wireless network. A primary mobile communication device is configured to establish one or more connections to one or more secondary mobile communication devices. The primary mobile communication device is further configured to establish a first connection and a second connection to at least one of the secondary mobile communication devices. The first connection is a Bluetooth (BT) connection and the second connection is a Wireless Fidelity (WiFi) connection. The primary mobile device is also configured to establish a third connection to another secondary mobile communication device wherein the third connection is a WiFi connection. Additionally, the primary mobile communication device is configured to simultaneously maintain the BT connection and the WiFi connections during the bi-directional transmission of data between the primary mobile communication device and the secondary mobile communication devices.

Abstract: A network interface including a radio frequency system with a component configured for communication with an access point. First, second and third client modules communicate with the access point according to respective wireless communication standards. The first, second and third client modules share the component, such that during respective periods the first, second and third client modules communicate with the access point via the component. The first client module transmits a request signal to the second client module while the second client module is in an idle state and the third client module is in an active state. The request signal requests access to the component. The third client module, in response to the request signal, aborts transmitting of first data to the access point and transmits an acknowledgement signal. The first client module transmits to or receives from the access point second data based on the acknowledgement signal.

Abstract: An aggregated physical layer (PHY) data unit for transmission of independent data for a plurality of stations via a communication channel is generated, wherein the aggregated PHY data unit includes i) a plurality of individual PHY data units corresponding to the plurality of stations and ii) information that indicates locations of at least some of the plurality of individual PHY data units within the aggregated PHY data unit. Beamforming is controlled while the aggregated PHY data unit is being transmitted. Transmission in an omnidirectional or quasi-omnidirectional manner is performed while the information that indicates locations of at least some of the plurality of individual PHY data units is transmitting. For each of the individual PHY data units, beamforming to the corresponding station is performed while at least some of the corresponding individual PHY data unit is being transmitted.

Abstract: The present specification describes techniques and apparatus that enable wireless devices to communicate effectively at short ranges. In one implementation, the transmit power of a transmitting device is reduced to permit a receiving device to demodulate a signal.

Abstract: In a method of determining a set of communication channels for a first basic service set from at least i) a first set of channels and ii) a second set of channels, wherein each of at least some of the channels in the second set of channels partially overlaps, in frequency, at least one of the channels in the first set of channels, whether the second set of channels is being utilized by a second basic service set is determined. That the set of communication channels for the first basic service set includes either i) the first set of channels or ii) the second set of channels is determined based at least on a determination of whether the second set of channels is being utilized by the second basic service set.

Abstract: A plurality of individual physical layer (PHY) data units having independent data for a plurality of stations are generated. The plurality of individual PHY data units includes a first individual PHY data unit corresponding to a first station, a second individual PHY data unit corresponding to a second station, and a third individual PHY data unit corresponding to a third station. The second individual PHY data unit includes a first midamble of an aggregated PHY data unit, and the third individual PHY data unit includes a second midamble of the aggregated PHY data unit. The aggregated PHY data unit is generated to include the plurality of individual PHY data units, wherein the first midamble includes information that indicates a location within the aggregated PHY data unit of the third individual PHY data unit.

Abstract: In a method for detecting a clock rate of a data unit, the data unit is received via a communication channel. The data unit includes i) a first preamble portion and ii) an orthogonal frequency division multiplexing (OFDM) portion following the first preamble portion. The OFDM portion includes a second preamble portion including one or more long training fields. Based on the first preamble portion, whether a clock rate of the OFDM portion is a first clock rate or a second clock rate lower than the first clock rate is determined based on the first preamble portion.

Abstract: In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, first data and second data that correspond to a unit of audio, video, and/or image information is received. The first data and the second data are encoded and modulated so that a resulting data rate of the first data is less than a resulting data rate of the second data. The first data and the second data are parsed to a plurality of spatial streams, and a single PHY data unit that includes the plurality of spatial streams is generated.

Abstract: An access point including a beacon module that determines a beacon interval and that defines a first portion and a second portion of the beacon interval during which the access point operates in a normal mode and a power save mode, respectively. On receiving a communication from a client station during the first portion, a control module does not transition the access point from the normal mode to the power save mode at an end of the first portion. If the communication is not received during the first portion, the control module transitions the access point from the normal mode to the power save mode at the end of the first portion and from the power save mode to the normal mode at an end of the second portion. A duration of the second portion is less than a scan time of the client station.

Abstract: Power consumption is managed in a subscriber station of a communication system. The subscriber station is engaged in a sleep mode, including reducing a frequency of a system clock of the subscriber station. When the subscriber station receives, while in the sleep mode, a message having downlink transmission parameters while, the frequency of the system clock of the subscriber station is increased to process the message. After processing the message, the frequency of the system clock is reduced.

Abstract: A system including a controller and a transmitter. The controller is configured to generate a communication schedule based on a profile. The profile indicates (i) a start time, (ii) a duration, and (iii) a periodicity of communication between a first device and a second device. Consistent with (i) the start time, (ii) the duration, and (iii) the periodicity indicated in the profile, the communication schedule specifies (i) a first duration to transfer data between the first device and the second device, and (ii) a second duration in which not to transfer data between the first device and the second device. The transmitter is configured to transmit the communication schedule in a message from the first device to the second device. The message includes information about interference present in an operating environment of the first device and the second device.

Abstract: The present specification describes techniques and apparatus that enable wireless devices to communicate effectively at short ranges. In one implementation, the transmit power of a transmitting device is reduced to permit a receiving device to demodulate a signal.

Abstract: A first network device includes a first PHY device that transfers first data on a first channel between the first network device and a second network device via a base station. The second PHY device receives a first request transmitted on a second channel and in response to receiving the first request, determines whether the first PHY device is receiving the first data. The first request is received from the second network device via an access point and requests permission to send second data. The second PHY device, if the first PHY device is not receiving the first data, determines whether the first PHY device is to receive or transmit the first data in respective periods. The second PHY device transmits a response signal to the second network device, on the second channel, if the first PHY device is not to receive or transmit the first data the respective periods.

Abstract: A system including a nonce module and an encryption module. The nonce module is configured to generate a nonce for each packet of a plurality of packets to be encrypted using a first temporal key. Each nonce includes a packet number that is different than packet numbers associated with other nonces generated by the nonce module for the plurality of packets. The packet number is greater than N bits in length, where N is an integer greater than 40. The encryption module is configured to encrypt, without reusing a value of the packet number, more than 2(N-1) packets of the plurality of packets using (i) the first temporal key and (ii) the nonces corresponding to the more than 2(N-1) packets using Galois/Counter Mode encryption.

Abstract: Systems and techniques relating to wireless communications are described. A described technique includes obtaining data for a transmission to a wireless communication device. The wireless communication device can be configured to process incoming transmissions based on an aggregate data unit format that specifies signaling for aggregating multiple medium access control (MAC) data units. The technique includes, in a physical (PHY) frame, an aggregate data unit that is based on the data and the aggregate data unit format, the aggregate data unit including a single MAC data unit. The technique includes, in the PHY frame, an indication to signal that the MAC data unit in the aggregate data unit is singular and to cause the wireless communication device to accept the aggregate data unit without a corresponding block acknowledgement agreement.

Abstract: In a method for generating a data unit for transmission via a communication channel, a first preamble portion of the data unit is generated based on whether a physical layer (PHY) mode is a first PHY mode or a second PHY mode. An OFDM portion of the data unit is generated. The OFDM portion follows the first preamble portion, includes a second preamble portion including one or more long training fields, is clocked at a first clock rate when the PHY mode is the first PHY mode, and is clocked at a second clock rate lower than the first clock rate when the PHY mode is the second PHY mode.

Abstract: In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, information bits to be included in the PHY data unit are encoded using a forward error correction (FEC) encoder. Also, the information bits are encoded according to a block coding scheme, where m copies of each bit are included in the information bits, and one or more bits in the m copies of each bit are flipped. The information bits are mapped to a plurality of constellation symbols, and a plurality of orthogonal frequency division multiplexing (OFDM) symbols are generated to include the plurality of constellation symbols. The PHY data unit is generated to include the plurality of OFDM symbols.

Abstract: A network device includes a first communication module and a second communication module. The first communication module communicates with a first device using a first wireless communication standard. The first communication module receives data from the first device during a first time period and transmits data to the first device during a second time period. The second communication module communicates with a second device using a second wireless communication standard. The second communication module receives a block of packets from the second device during the first time period. The second communication module transmits an acknowledgement to the second device during the second time period when the block of the packets is received.