Patent application number | Description | Published |
20080234012 | 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 a necessary opportunities to communicate within the network. In some embodiments, this estimate may be based on a combination of things such as the amount of data still queued up for transmission, recent history on data rates, a prediction on how long it will take another device (e.g., an access point) to accumulate enough data for another transmission, and/or how long the queued-up data can wait before it becomes stale. | 09-25-2008 |
20090232157 | 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. | 09-17-2009 |
20100098181 | METHOD AND MOBILE COMMUNICATION STATION FOR COMMUNICATING OFDM SYMBOLS USING TWO OR MORE ANTENNAS - A method and mobile communication station for communicating orthogonal frequency division multiplexed (OFDM) symbols uses two or more antennas. The antenna parameters are set for beamforming, a transmit power level is initially set, and subcarrier modulation assignments are selected after the antenna parameters and the transmit power level are set to achieve a quality-of-service level for a particular application and data type of a service flow. The transmit power level may also be set based on a desired cell size. | 04-22-2010 |
20110044273 | HIGH THROUGHPUT COMMUNICATION STATION AND METHOD FOR COMMUNICATING OVER A PRIMARY CHANNEL AND A SECONDARY CHANNEL - Embodiments of a high-throughput (HT) communication station (STA) and method for communicating over a primary and a secondary channel are generally described herein. In some embodiments, the high-throughput (HT) communication station (STA) comprises a physical layer (PHY) and a media-access control (MAC) layer to provide a data unit to the physical layer. The PHY layer may be configured to transmit a packet that includes the data unit over a channel bandwidth comprising a first channel and an additional channel in accordance with an OFDM communication technique. The packet may have a frame structure that includes a channel bandwidth parameter to indicate the channel bandwidth used, a modulation and coding parameter to indicate a modulation and coding scheme of the packet as transmitted over the channel bandwidth. | 02-24-2011 |
20110158142 | METHOD AND SYSTEM FOR POWER MANAGEMENT IN AN AD HOC NETWORK - A method and system may transmit during a traffic indication window, such as an ATIM window, a frame indicating a power management mode and may then transition to the power management mode, possibly before the end of the traffic indication window. Another method and system may receive or transmit during a beacon interval an indicator of a desire to enter a sleep state, then transmit or receive an indicator of a desire to enter the sleep state, and then enter the sleep state prior to the end of the beacon interval. Other embodiments are described and claimed. | 06-30-2011 |
20130077661 | BASE STATION AND METHOD FOR CHANNEL CODING AND LINK ADAPTATION - A base station is arranged for performing channel coding and link adaptation. The base station comprises one or more processors and physical layer circuitry arranged to decode symbols received from a user station to determine an error rate, the symbols received through a plurality of antennas, receive signaling from the user station, the signaling including channel quality information for channel resources of an orthogonal frequency division multiplexed (OFDM) channel, select a modulation and coding rate for transmission of symbols to the user station based at least in part on the error rate, and transmit a transmit power control command to the user station, the transmit power control command based at least in part on a downlink path loss estimate. The base station may also transmit additional transmit power control commands to the user station based on the error rate of subsequently decoded symbols. The transmit power control command may be selected for channel resources that are allocated to the user station, the channel resources comprising a group of subcarriers having an initially selected modulation and coding rate. | 03-28-2013 |
20130294232 | WIRELESS DISCOVERY USING A REDUCED TRAFFIC LOAD PROCESS - Traffic load over a wireless medium due to wireless access point discovery is reduced. The wireless stations and wireless access points support wireless discovery using a reduced traffic load process. The reduced traffic load process includes providing aggregated short probe responses. | 11-07-2013 |
20130343185 | WIRELESS DEVICE AND METHOD OF SHORT MAC FRAME INDICATION - Embodiments of a wireless communication device and method for short frame indication in an IEEE 802.11ah network are generally described herein. In some embodiments, a reserved bit in a service field is used to indicate whether a frame is using a short MAC header or a regular MAC header. | 12-26-2013 |
20130346207 | WIRELESS COMMUNICATION DEVICE AND METHODS FOR SYNCHED DISTRIBUTED ADVERTISEMENT FOR DEVICE-TO-DEVICE DISCOVERY - Examples of a communication device and methods for synched distributed advertisement for device-to-device are generally described herein. In some embodiments, a method can include transmitting, from a first device of a publishing group, at a group publishing beacon interval (T), a first publishing beacon (PB) including social information of the first device and social information of (N−1) other devices, wherein the group publishing beacon interval (T) represents a preset interval of time between each successive publishing beacon transmission of the publishing group, and wherein the first publishing beacon and the each successive publishing beacon includes a first value representative of the group publishing beacon interval. | 12-26-2013 |
20140016511 | RAPID SCANNING FOR FAST INITIAL LINK SETUP - Embodiments of station and responder and method for reducing the time and power consumption for stations to scan for wireless network coverage and establish a link to the responder to gain access thereto are generally described herein. In some embodiments, a first scan phase establishing the existence and perhaps other characteristics of responders, is followed by an responder discovery phase where a link can be established using active or passive scanning procedures. In some embodiments the two phases are somewhat combined with the first phase using a Probe Request with an Organizationally Unique Identifier as the Scan Request and an ACK message acting as a Scan Request Response and a Probe Response Request transmitted separately. Specific timings and message constructs allow utilization within existing or new 802.11 standards. | 01-16-2014 |
20140064223 | 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. | 03-06-2014 |
20140092843 | METHOD, APPARATUS AND SYSTEM TO MANAGE DISTRIBUTED CHANNEL ACCESS WITH TIME RESERVATION - A method, apparatus and system to manage distributed channel access with time reservation are generally presented. In this regard, a reservation agent is introduced to reserve access to a wireless network channel for an amount of time greater than necessary to transmit to another station(s) and to transmit to the other station(s). | 04-03-2014 |
20140126394 | ADAPTIVE OPTIMIZATION OF TIME OF FLIGHT (ToF) EXCHANGE - Embodiments for providing adaptive optimization of time of flight (ToF) exchange are generally described herein. In some embodiments, a mobile station includes a range management module arranged to transmit a measurement request action frame having a first flag for indicating to an access point to perform an optimized sequence for calculating the ToF, to receive ranging information in response to the transmission of the measurement request action frame having the first flag, and to calculate a time of flight based on the received ranging information. | 05-08-2014 |
20140136093 | SYSTEMS AND METHODS OF REDUCING TIMING MEASUREMENT ERROR DUE TO CLOCK OFFSET - Navigation systems for use in indoor environments may include a navigation system that can calculate the time of flight of signals between a navigation device and a WiFi Access Point. Such a calculation can be more accurate not just by using more accurate oscillators in devices, but by correcting the relative error between two devices. This error may be found by determining a timing offset correction, the difference in accuracy between the navigation device and the WiFi Access Point. This may be performed by performing a fine frequency estimation on a long training field or by receiving the PPM offset from another device. Once the PPM offset is determined, the accuracy of the navigation device can be improved by a factor of 50 using a series of equations described in the disclosure. | 05-15-2014 |
20140161051 | METHODS, WIRELESS COMMUNICATION STATION, AND SYSTEM FOR WLAN CHANNEL SELECTION THROUGH BEACON REQUESTS - Embodiments of a user station (STA) and methods for WLAN channel selection through beacon requests are generally described herein. In some embodiments, a STA requests that an access point (AP) transmit a beacon signal on a first sub-band. The first sub-band may include a channel of interest to the STA. The STA may determine that the AP supports the first sub-band if the AP transmits the requested beacon signal. | 06-12-2014 |
20140171053 | TECHNIQUES AND APPARATUS TO MANAGE POWER IN WIRELESS DEVICE - An apparatus may include a sensor, a processor circuit, and an adaptive scanning component for execution on the processor circuit to receive sensor data from the sensor, to determine activity state based upon the received sensor data, and to adjust a wireless network scanning procedure in accordance with the received sensor data. Other embodiments are described and claimed. | 06-19-2014 |
20140254469 | MILLIMETER-WAVE RELAY DEVICE WITH BOUNDED DELAY AND METHOD FOR RETRANSMISSION OF SYMBOLS - Embodiments of a wireless station to operate as a per-symbol relay device and method for retransmission of symbols between client devices and a master device using millimeter-wave links is generally disclosed herein. In some embodiments, the relay device may receive one or more of independent symbol streams from the master device. Each independent symbol stream may comprise packets that include groups of one or more symbols. Each group within a packet may be destined for a different one of the client devices. The relay device may separately decode each symbol or group of symbols to generate an independent stream of symbols for retransmission to the client devices using beamforming. The relay device may be arranged to receive, decode, and retransmit each symbol or group of symbols within a delay that is bounded by the number of symbols in the group. | 09-11-2014 |
20140269549 | WIRELESS STATION AND METHODS FOR TOF POSITIONING USING REVERSE-DIRECTION GRANT - Embodiments of a communication station (STA) and method for time-of-flight (ToF) positioning in a wireless network are generally described herein. In some embodiments, an initiating station may transmit a message M1 carrying a high-throughput control (HTC) field that includes a reverse direction grant (RDG) bit. The RDG indication grants permission to a responding station to send information back to the initiating station. The message M1 may be a timing measurement action frame. An ACK frame may be received from the responding station to acknowledge receipt of the message M1. The ACK frame may optionally carry an HTC field that includes a more PPDU indication to indicate whether a PPDU (e.g., contained in message M2) is to follow the ACK frame. The message M2 may be received from the responding station and may include timing measurement information from a current and/or one or more previous ToF message exchanges. | 09-18-2014 |
20140269670 | METHODS, WIRELESS COMMUNICATION STATIONS, AND SYSTEM FOR TIME SYNCHRONIZATION AND DISCOVERY - Embodiments of a user station (STA) and methods for synchronizing with devices in a wireless communication network are generally described herein. In some embodiments, a STA receives a first beacon from a device in the first social network. The STA may synchronize to the first social network based on time synchronization information in the first beacon. The STA may transmit the time synchronization information of the first beacon to a second social network. A portion of a coverage area of the second social network may be outside a coverage area of the first social network. | 09-18-2014 |
20140369303 | METHOD AND APPARATUS FOR COLLISION DETECTION IN WIDER BANDWIDTH OPERATION - Embodiments of systems and methods for providing collision detection in a wider bandwidth are generally described herein. Other embodiments may be described and claimed. | 12-18-2014 |