Patent application number | Description | Published |
20080198760 | TRAINED DATA TRANSMISSION FOR COMMUNICATION SYSTEMS - Various embodiments are described for a trained data transmission for communication systems. | 08-21-2008 |
20090122694 | Method for signaling information by modifying modulation constellations - Methods and systems for communicating in a wireless network may distinguish different types of packet structures by modifying the phase of a modulation constellation, such as a binary phase shift keying (BPSK) constellation, in a signal field. Receiving devices may identify the type of packet structure associated with a transmission or whether the signal field is present by the phase of the modulation constellation used for mapping for the signal field. In one embodiment, the phase of the modulation constellation may be determined by examining the energy of the I and Q components after Fast Fourier Transform. Various specific embodiments and variations are also disclosed. | 05-14-2009 |
20090213865 | Techniques for channel access and transmit queue selection - Various embodiments are disclosed for techniques to perform channel access decisions and to select a transmit queue. These decisions may be performed, for example, based upon the age and number of packets in a queue. These techniques may allow a node to improve the length of data bursts transmitted by the node, although the invention is not limited thereto. | 08-27-2009 |
20100165896 | Power saving in peer-to-peer communication devices - Apparatuses, systems, methods, and computer program products to save power in peer-to-peer communication devices associated with wireless communication networks are disclosed. Embodiments generally comprise wireless communications devices. A device may associate or connect with an access point and communicate with another device also connected to the access point. The devices may establish a direct link as part of a tunneled direct link system (TDLS) network. After establishing the direct link, the devices may negotiate a wakeup schedule, enabling both devices to enter power saving modes to conserve power. The devices may maintain the direct link while in power saving modes, enabling the devices to periodically exit the power saving modes and transfer buffered data. | 07-01-2010 |
20100208579 | ADAPTIVE USE OF A TRANSMIT OPPORTUNITY - Various embodiments are described to adaptively use a transmit opportunity. | 08-19-2010 |
20100322130 | Techniques for broadcast/multicast delivery in wireless networks - An embodiment of the present invention provides an apparatus including a transceiver operable for broadcast/multicast traffic delivery in a wireless network, wherein the transceiver is adapted to identify local broadcast traffic and limit a broadcast domain to a basic service set (BSS) servicing the local broadcast traffic. | 12-23-2010 |
20110013524 | TRAINED DATA TRANSMISSION FOR COMMUNICATION SYSTEMS - Various embodiments are described for a trained data transmission for communication systems. | 01-20-2011 |
20110044392 | Systems And Methods For High-Throughput Wideband Wireless Local Area Network Communications - A frame format provides for wideband wireless local area network communications and informs narrower-band communication units when the channels are occupied by wider-band communication units. In some embodiments, the frame format includes a channelization field identifying channels that are used for communicating subsequent wideband fields of a packet, and a wideband-header field communicated on the identified channels. The wideband-header field may identify sub-fields that may be present in the wideband-header field, and may identify the presence of a wideband-data field. A long-compatibility field may be present that provides protection at the MAC level. The long-compatibility field may transport MAC frames that may include medium-reservation information compatible with narrower-band communication units. | 02-24-2011 |
20110149723 | Packet-loss handling for downlink multi-user multiple- input and multiple-output wireless network - Techniques for packet-loss handling for downlink Multi-User Multiple-input and Multiple-Output (DL MU-MIMO) wireless networking environment are described herein. The techniques described herein help define how a wireless access point should behave when faced with a packet-loss situation of a DL transmission burst in a MU-MIMO wireless network. | 06-23-2011 |
20110149936 | METHODS FOR TRANSMITTING CLOSELY-SPACED PACKETS IN WLAN DEVICES AND SYSTEMS - A wireless local area network (WLAN) device transmits a header over an air interface, at a first modulation rate. The header may include an indication of a second modulation rate that will be used to transmit a consolidated payload. The device further transmits the consolidated payload at the second modulation rate. The consolidated payload includes multiple data units. In one embodiment, the consolidated payload includes delimiters with validation fields associated with the various data units. | 06-23-2011 |
20110158110 | METHOD AND SYSTEM FOR MULTIBAND RATE SCALING - A system and method for multiband rate scaling for communication, particularly wireless communication. A band is used as a parameter for wireless communication performance when a wireless communication channel has a plurality of available bands for communication. A selected communication band may be switched to another available communication band, where the switching may be based on a desired performance determination. | 06-30-2011 |
20110235576 | ENHANCED CARRIER SENSING FOR MULTI-CHANNEL OPERATION - In various embodiments, a multi-channel request-to-send and a multi-channel clear-to-send may be used in a wireless communications network to assure that a subsequent multi-channel communications exchange between two devices takes place only over channels that are sensed by both devices as being free. | 09-29-2011 |
20110243073 | LEGACY OPERATIONS IN A MU MIMO WIRELESS NETWORK - In a network that contains both new devices capable of using wide channels and legacy devices that can only use narrow channels, the network controller may define which devices are to use which narrow channels for concurrently transmitting uplink acknowledgements. Further, the network controller may schedule the devices to respond in groups based on the received signal strength of their transmissions at the network controller. | 10-06-2011 |
20110268002 | SCHEDULING FOR POWER SAVINGS IN A WIRELESS NETWORK - In a wireless network, a wireless device may dynamically estimate how long it can remain in a sleep mode without missing out on necessary opportunities to communicate within the network. In some embodiments, this estimate may be based at least partly on an estimate of how long it will take to transmit data in a transmit queue. | 11-03-2011 |
20110305205 | RESPONSE MECHANISMS FOR WIRELESS NETWORKS USING WIDE BANDWIDTH - In some embodiments, multiple wireless communication devices that are each transmitting an acknowledgement to the same wide-channel transmission will transmit their acknowledgements simultaneously over different ones of the narrow channels that make up the wide channel, thereby permitting older devices that can't decode the wide channels to determine when the acknowledgement are transmitted. | 12-15-2011 |
20120099576 | PARALLEL WIRELESS COMMUNICATION APPARATUS, METHOD, AND SYSTEM - An access point in a wireless network communicates with multiple mobile stations simultaneously using spatial-division multiple access. | 04-26-2012 |
20120120859 | TECHNIQUES FOR WAKEUP SIGNALING FOR A VERY LOW POWER WLAN DEVICE - An embodiment of the present invention provides a method of wakeup signaling for a very low power wireless local area network device (WLAN) device, comprising transmitting by an access point operable in the WLAN of a wake-up signal that can be received using low-power techniques at a receiver associated with the device. | 05-17-2012 |
20120182983 | METHODS FOR TRANSMITTING CLOSELY-SPACED PACKETS IN WLAN DEVICES AND SYSTEMS - A wireless local area network (WLAN) device transmits a header over an air interface, at a first modulation rate. The header may include an indication of a second modulation rate that will be used to transmit a consolidated payload. The device further transmits the consolidated payload at the second modulation rate. The consolidated payload includes multiple data units. In one embodiment, the consolidated payload includes delimiters with validation fields associated with the various data units. | 07-19-2012 |
20120287916 | DATA DEFINITION APPARATUS, SYSTEMS, AND METHODS - An apparatus and a system, as well as a method and article, may operate to send a selected data type without self-definition information to a receiver if a state capable of interpreting the selected data type has been maintained by the receiver, and to send the selected data type with the self-definition information to the receiver if the state capable of interpreting the selected data type has not been maintained by the receiver. | 11-15-2012 |
20120300707 | ENHANCED CARRIER SENSING FOR MULTI-CHANNEL OPERATION - In various embodiments, a multi-channel request-to-send and a multi-channel clear-to-send may be used in a wireless communications network to assure that a subsequent multi-channel communications exchange between two devices takes place only over channels that are sensed by both devices as being free. | 11-29-2012 |
20130039351 | MULTIPLE MODE SUPPORT IN A WIRELESS LOCAL AREA NETWORK - Briefly, in accordance with one embodiment of the invention, an access point may provide multiple access to a single medium by providing time division multiple access to the medium. During a first phase to communicate with devices of a first type, the access point may transmit a beacon to indicate to devices of a second type not to communicate during the first phase. During a second phase to communicate with devices of the second type, the access point may transmit a beacon to indicate to devices of the first type not to communicate during the second phase. In one particular embodiment, the access point may transmit a medium reservation packet to indicate reservation of the medium for affected devices. Phases may be adaptively extended by transmitting additional medium reservation packets until it is desired to end the present phase and transition to the second phase | 02-14-2013 |
20130148529 | METHOD AND SYSTEM FOR MULTIBAND RATE SCALING - A system and method for multiband rate scaling for communication, particularly wireless communication. A band is used as a parameter for wireless communication performance when a wireless communication channel has a plurality of available bands for communication. A selected communication band may be switched to another available communication band, where the switching may be based on a desired performance determination. | 06-13-2013 |
20130235813 | METHOD AND APPARATUS FOR MANAGING A WIRELESS NETWORK ACCESS POINT BEACON - An approach is provided for managing a wireless network access point beacon. The approach involves determining to one or more of (1) cause, at least in part, a beacon pointer associated with a beacon of a wireless network access point to be transmitted and (2) cause, at least in part, a beacon schedule associated with the beacon of the wireless network access point to be adjusted based, at least in part, on a derivation of one or more other beacon schedules associated with one or more other beacons of one or more other wireless network access points. The determination to cause the adjustment of the beacon schedule is based, at least in part, on a received indication of a potential conflict between the beacon and the one or more other beacons. | 09-12-2013 |
20130279382 | METHODS AND ARRANGEMENTS TO COORDINATE COMMUNICATIONS IN A WIRELESS NETWORK - Logic to coordinate communications of wireless communications devices to attenuate collisions, such as through coordination of communications by implementing slot logic in an access point. The slot logic may determine a time slot schedule for beacon intervals and may further transmit a synch frame at the time slot boundaries. If the channel is busy, the slot logic may not send the synch frame. The slot logic may also comprise distribution logic to determine a probability of collisions and to instruct one or more of the devices to spread out their channel accesses across beacons intervals to reduce the chance of collisions. A station associated with the access point may comprise synch logic to wake up at a slot boundary and wait for a synch frame or any other packets to synch to the medium. | 10-24-2013 |
20130290807 | METHOD FOR SIGNALING INFORAMTION BY MODIFYING MODULATION CONSTELLATIONS - Methods and systems for communicating in a wireless network may distinguish different types of packet structures by modifying the phase of a modulation constellation, such as a binary phase shift keying (BPSK) constellation, in a signal field. Receiving devices may identify the type of packet structure associated with a transmission or whether the signal field is present by the phase of the modulation constellation used for mapping for the signal field. In one embodiment, the phase of the modulation constellation may be determined by examining the energy of the I and Q components after Fast Fourier Transform. Various specific embodiments and variations are also disclosed. | 10-31-2013 |
20130336247 | TRAINED DATA TRANSMISSION FOR COMMUNICATION SYSTEMS - Various embodiments are described for a trained data transmission for communication systems. | 12-19-2013 |
20140044112 | METHODS AND ARRANGEMENTS FOR BEAMFORMING REPORTS IN WIRELESS NETWORKS - Logic of an access point may transmit a null data packet for beamforming training and transmit a beamforming report poll to the first station on a user list before receiving a transmission from the first station on the user list. Logic may wait for a timeout period to determine whether the first station on the user list will respond to the null data packet prior to transmitting the beamforming report poll. Logic may receive from the first station an indication that the first station is a slow beamforming report responder. Logic may reorder the user list to position a fast beamforming responder as the first station. And logic of the station may determine that the station is unable to complete and transmit the report so the logic may wait to transmit the beamforming report in response to a subsequent beamforming report poll frame. | 02-13-2014 |
20140056209 | METHODS AND ARRANGEMENTS TO RELAY PACKETS VIA WI-FI DIRECT - Logic may enable client devices or access points to relay medium access control (MAC) frames through a Wireless Fidelity (Wi-Fi) Direct network such as a network of Peer-to-Peer (P2P) connections to extend the wireless range of the devices or access points beyond the transmission range of the individual devices or access points. Logic may extend the range of IEEE 802.11 devices, such as IEEE 802.11ah devices, by allowing a station in the middle of two stations to serve as a relay station using the Wi-Fi Direct technology. Logic may enable relaying to avoid a full mesh technology such as is defined in IEEE 802.11s, since the full mesh technology may contain too many features that are not required for a simple or a static network configuration of such embodiments. | 02-27-2014 |
20140098724 | METHODS AND ARRANGEMENTS FOR FREQUENCY SELECTIVE TRANSMISSION - Logic may comprise hardware and/or code to select a narrow band from a wider channel bandwidth. Logic of communications between devices may select, e.g., a 1 or 2 MHz sub-channel from a wider channel bandwidth such as 4, 8, and 16 MHz and transmit packets on the selected 1 or 2 MHz channel. For instance, a first device may comprise an access point and a second device may comprise a station such as a low power sensor or a meter that may, e.g., operate on battery power. Logic of the devices may facilitate a frequency selective transmission scheme. Logic of the access point may transmit sounding packets or control frames across the sub-channels of the wide bandwidth channel, facilitating selection by the stations of a sub-channel and subsequent communications on the sub-channel between the access point and the station. | 04-10-2014 |
20140105186 | METHODS AND ARRANGEMENTS TO COORDINATE COMMUNICATIONS OF DIFFERENT TYPES OF DEVICES ON A WIRELESS NETWORK - Logic may coordinate communications of different types of wireless communications devices such as high power and low power wireless communications devices. Logic may coordinate communications by assigning time slots to a low power station (LP-STA) in a management frame such as a beacon transmitted by an access point (AP) associated with the LP-STA. Logic of the high power stations (HP-STAs) may receive the beacon and shepard logic of the HP-STA may defer transmissions by the HP-STA throughout the duration(s) indicated in the beacon from the AP. Logic of the LP-STA may comprise carrier sense multiple access with collision avoidance logic to determine when to transmit a communication. Shepard logic of an HP-STA may detect the communication from the LP-STA and defer transmission of communication during a time duration for the communication by the LP-STA. | 04-17-2014 |
20140146727 | SYSTEMS AND METHODS FOR SERVICE DISCOVERY - Systems and methods are provided for receiving an out-of-band signal and determining that a communicative connection is available based at least in part on the out-of-band signal, and connecting to the communicative connection based at least in part on determining that a communicative connection is available. | 05-29-2014 |
20140185535 | Methods and Arrangements for Adaptive Delay Control - Logic may comprise hardware and/or code to coordinate communications of wireless communications devices. Logic coordinate communications in an access point by implementing adaptive delays. Logic may determine a delay for stations awaking from a doze state during which the station should perform clear channel assessment prior to transmitting packets on a channel. Logic may collect information about devices and/or communications within a basic service set (BSS) such as the statistics of the received packets length in time, the type of stations in the network, and/or other information available. Based upon the information collected, the logic may determine a delay and transmit the delay to devices in the BSS. Logic may receive and update the delay in memory and then implement the delay after switching to an awake state from a doze state. | 07-03-2014 |
20140192713 | METHODS AND ARRANGEMENTS FOR SHORT BEACON FRAMES IN WIRELESS NETWORKS - Embodiments provide a new short beacon frame format and its operation with full beacon frame transmissions for wireless communications devices. Many embodiments comprise a medium access control (MAC) sublayer logic to build frames comprising the short beacon frame for a first communications device. In some embodiments, the MAC sublayer may determine a frame control field comprising a type field indicative of an extension frame and a subtype indicative of a short beacon. In further embodiments, the frame control field may comprise a service set identifier (SSID) control field, and a reserved field. Some embodiments may store the short beacon frame or frame format in memory, in logic, or in another manner that facilitates transmission of the short beacon frames. Some embodiments may receive and detect communications with the short beacon frames. Further embodiments may generate and transmit a communication with the short beacon frames. | 07-10-2014 |
20140192714 | METHOD, APPARATUS AND SYSTEM OF FRAME TUNNELING OPERATION OF MULTIPLE FREQUENCY BANDS DEVICE - Disclosed is a tunneling mechanism that enables frames generated by a MAC layer management entity (MLME) to be transmitted by another. By doing that, a pair of stations (STAs) can perform functions such as (re)association, authentication, and the like, without having to transmit frames over-the-air but, instead, use a different MLME for this purpose. This enables the station management entities (SMEs) of a pair of multi-band capable STAs to provide a seamless fast session transfer (FST), including the provisioning of multi-band (de)authentication and (re)association. | 07-10-2014 |
20140192820 | METHODS AND ARRANGEMENTS TO MITIGATE COLLISIONS IN WIRELESS NETWORKS - Logic for collision mitigation between transmissions of wireless transmitters and receivers operating at different bandwidths. Logic of the receivers may be capable of receiving and detecting signals transmitted at narrower bandwidths. In several embodiments, the receivers comprise a clear channel assessment logic that implements a guard interval (or cyclic prefix) detector to detect transmissions at narrower bandwidths. For instance, a two MegaHertz (MHz) bandwidth receiver may implement a guard interval detector to detect 1 MHz bandwidth signals and a 16M Hz bandwidth receiver may implement logic to detect one or more 1 MHz bandwidth signals and any other combination of, e.g., 1, 2, 4, 8 MHz bandwidth signals. In many embodiments, the guard interval detector may be implemented to detect guard intervals on a channel designated as a primary channel as well as on one or more non-primary channels. | 07-10-2014 |
20140198723 | METHOD AND APPARATUS FOR MEDIUM ACCESS GROUP ASSIGNMENT - Systems and methods for implementing a medium access group assignment of stations (STAs) are disclosed. An access point (AP) device may be configured to allocate a chosen beacon interval to a medium access group (MAG). Further, the AP device may assign STAs to different MAGs. After assignment to a particular MAG, the STAs that are associated to the particular MAG may use the configured beacon interval during transmission and reception of messages. | 07-17-2014 |
20140198783 | METHODS AND ARRANGEMENTS FOR SYNCH FRAME TRANSMISSIONS - Logic to “loosely” manage synch frame transmissions in a synch network via the devices synced to the network that implement the logic. Logic may distributedly adjust the frequency of attempting synch frame transmissions without estimating the size of the neighborhood. Logic in devices of a synch network to let each device maintain a Transmission Window (TW). Logic to determine the frequency of attempting synch frame transmissions based upon the TW. Logic to increase TW if the device detects a synch frame transmission. Logic to decrease TW if the device successfully transmits a synch frame. Logic to balance power consumption and discovery timing by adjusting the decrease in TW responsive to a synch transmission in relation to the increase in TW responsive to detection of a synch transmitted by another device. | 07-17-2014 |
20140328167 | RESPONSE SCHEDULING FOR MULTIPLE RECEIVERS - A base station may poll multiple mobile devices with the same multicast poll, and the polled mobile stations may respond separately at different times based on an assigned delay period for each mobile station that was specified in the poll message. | 11-06-2014 |