Polling Patents (Class 370/346)
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Publication number: 20140293989Abstract: An apparatus or method for transmitting data blocks on a communications channel having a radio link between two stations including a user equipment comprises receiving first data blocks from the user equipment, and transmitting second data blocks to the user equipment. A polling interval is dynamically set for the transmission of polling messages to the user equipment after transmission of the second data blocks, the polling interval being set in accordance with at least one of: a size of one or more data blocks received by the apparatus from the user equipment, a size of one or more blocks transmitted from the apparatus to the user equipment, and a service to which the user equipment is subscribed. The apparatus may be used as a PCU in a cellular mobile telephone system.Type: ApplicationFiled: June 13, 2014Publication date: October 2, 2014Inventors: Stephane Cayla, Arnaud Le Clercq De Lannoy
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Publication number: 20140293990Abstract: An apparatus or method for transmitting data blocks on a communications channel having a radio link between two stations including a user equipment comprises receiving first data blocks from the user equipment, and transmitting second data blocks to the user equipment. A polling interval is dynamically set for the transmission of polling messages to the user equipment after transmission of the second data blocks, the polling interval being set in accordance with at least one of: a size of one or more data blocks received by the apparatus from the user equipment, a size of one or more blocks transmitted from the apparatus to the user equipment, and a service to which the user equipment is subscribed. The apparatus may be used as a PCU in a cellular mobile telephone system.Type: ApplicationFiled: June 13, 2014Publication date: October 2, 2014Inventors: Stephane Cayla, Arnaud Le Clercq De Lannoy
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Patent number: 8843151Abstract: Burst quality of service (QoS) mode uses a higher modulation rate and coding scheme for transmitting data blocks in a short period of time between a transmitting terminal and a user terminal experiencing a channel state above a certain threshold in a wireless communication system. Burst QoS may reduce data transmission time, thereby achieving a higher level of channel efficiency as well as a reduction in the consumption of power. In burst QoS mode, the channel state information (CSI) may be repeatedly measured. When the CSI is above a certain threshold, a higher rate modulation and coding (MC) scheme is used for burst data transmission. After the burst, a short sleep is triggered to reduce power consumption.Type: GrantFiled: September 10, 2009Date of Patent: September 23, 2014Assignees: Industrial Technology Research Institute, National Taiwan UniversityInventors: Hung-Yu Wei, Ching-Chun Chou
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Patent number: 8837360Abstract: Embodiments of the present invention are directed to determining the geographic location of network entities. An embodiment is a method of determining the geographic location of a host including, identifying at least one gateway communicatively coupled to the host, determining a geographic location of the at least one gateway based upon a proximity relationship between the gateway and a localizable entity, and determining the geographic location of the host based upon the determined geographic location of the at least one gateway. Another embodiment is a method for a host to determine its geographic location by determining reachability information to communicatively coupled network entities, sending the reachability information to a location server, and by receiving geographic location information from the location server.Type: GrantFiled: December 13, 2010Date of Patent: September 16, 2014Assignee: Google Inc.Inventors: Arunesh Mishra, Zhengrong Ji, Marc Stogaitis, Tsuwei Chen
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Patent number: 8830924Abstract: A method for requesting a bandwidth by a message having a variable format is disclosed. The method includes determining a bandwidth request type according to a size of an uplink bandwidth requested by a mobile station, generating a bandwidth request message having a header format according to the determined bandwidth request type, and transmitting the bandwidth request message to a base station. The determined bandwidth request type is one of a bandwidth request per connection, a bandwidth request per Quality of Service (QoS), and a bandwidth request per mobile station.Type: GrantFiled: June 25, 2009Date of Patent: September 9, 2014Assignee: LG Electronics Inc.Inventors: Hee Jeong Cho, Ki Seon Ryu
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Patent number: 8824386Abstract: A method and system is disclosed for grouping the multiple stations connected to an access point (AP). The system and method comprise sending a sounding packet to a plurality of stations, wherein the stations may be all or part of the stations that are located within the range of the AP. The stations that receive the sounding packets respond to the AP, and the AP determines the channel state information (CSI) from the responses. According to the CSI, the AP divides the multiple stations into several groups. According to an embodiment of the present invention, a confirmation step is performed to each group of stations, respectively. The AP sends a second sounding packet to each group of stations, and verifies the CSI between each station group by group. Therefore, the method and system provides for monitoring the validation of each group by periodically sending sounding packets to each group.Type: GrantFiled: March 4, 2011Date of Patent: September 2, 2014Assignee: Mediatek Inc.Inventors: Thomas E. Pare, Jr., Cheng-Hsuan Wu, Yung-Szu Tu, Kiran Uln, Ravishankar H. Mahadevappa
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Patent number: 8824413Abstract: A method is provided for direct communications between members of at least one communication group of wireless entities, in which two communication groups are provided. A first group that has at least two wireless entities of an identical type, and a second group that has at least one wireless entity. A time slot is allocated in a frame belonging to a frame-based protocol for use by members of the first group to exchange direct communications between each other. The same time slot is used by at least one wireless entity of the second group to exchange non-direct communications in accordance with the frame-based protocol, or direct communication with one or more wireless entities of second group. Within the time slot, frequency resources within the same frequency channel are allocated to each of the two communication groups.Type: GrantFiled: October 28, 2011Date of Patent: September 2, 2014Assignee: Sparkmotion Inc.Inventor: Mariana Goldhammer
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Patent number: 8824495Abstract: A system and method of reserving bandwidth for disjoint time intervals in a wireless network. Parameters for a disjoint network allocation vector (NAV) define a reservation of a plurality of disjoint time durations during which transmissions by devices other than a target device are deferred. Parameters are sent as a control or data packet over a network and received by the devices associated with the network.Type: GrantFiled: March 31, 2009Date of Patent: September 2, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Xiangping Qin, Harkirat Singh, Chiu Ngo
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Patent number: 8814792Abstract: A vital-signs patch for a patient monitoring system that includes a housing containing a sensor that makes physiological measurements of a patient, a transmitter, a receiver, a memory, and a processor. The processor periodically takes a measurement from the sensor, converts the measurement to a data record, and stores the data record in the memory. Upon receipt of a signal from another device, the processor retrieves at least a portion of the data record, converts the retrieved portion of the data record to a vital-sign signal, and causes the transmitter to transmit the vital-sign signal to the other device.Type: GrantFiled: July 27, 2010Date of Patent: August 26, 2014Assignee: CareFusion 303, Inc.Inventors: Mark Raptis, Amir Jafri, Ganesh Kathiresan, Alison Burdett
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Patent number: 8787272Abstract: A method (400) for creating a group shared distributed reservation in a wireless network. The method comprises collecting information about the distributed reservation availabilities of devices in the wireless network (S410); selecting a group of shared devices to be included in the group shared distributed reservation based on the collected information (S420); sending a reservation request to each device in the group of shared devices (S430); and updating the group of shared devices to include only devices that accept the reservation request (S460), thereby creating a group shared distributed reservation of medium access time slots.Type: GrantFiled: July 8, 2009Date of Patent: July 22, 2014Assignee: Koninklijke Philips N.V.Inventor: Hongqiang Zhai
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Patent number: 8780945Abstract: A method and device may comprise transmitting, via a transmitter, a plurality of transmit pings at a transmit interval. A receiver may listen, for a live ping and the receiver may be configured to be turned on at a beginning of the assess interval, and off at an end of the detect duration. The receiver may further receive the live ping. After receiving the live ping, transmission of a new ping may be delayed for a delay duration. The new pings may be transmitted at the transmit interval.Type: GrantFiled: September 3, 2009Date of Patent: July 15, 2014Assignee: SNIF Labs, IncInventors: Jonathan Gips, Ryan Aylward, Mathew Laibowitz
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Patent number: 8780961Abstract: Systems and methods to operate wireless devices are provided herein. In an exemplary system a first wireless device coupled to a consumer electronics device is operated in a sleep mode. It is determined whether there is a second device is operating in the same bandwidth spectrum as the first device. If there is a second device operating in the same bandwidth spectrum, then the first device is switched to a sniff mode of operation.Type: GrantFiled: February 4, 2011Date of Patent: July 15, 2014Assignee: Broadcom CorporationInventors: James Michael Muth, Stephen McIntyre
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Patent number: 8780881Abstract: Various embodiments of the invention may use adaptive polling in a wireless network when one or more consecutive polls show that the polled station has no data to transmit. When triggered to perform adaptive polling, a base station may wait for increasingly long intervals between polls to a particular subscriber station, until some maximum interval has been reached. In some embodiments, the intervals may increase exponentially.Type: GrantFiled: December 21, 2006Date of Patent: July 15, 2014Assignee: Intel CorporationInventors: Muthaiah Venkatachalam, Chun Nie, Xiangying Yang
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Patent number: 8774846Abstract: A portable wireless terminal generates and transmits a beacon signal. The beacon signal includes a sequence of beacon signal bursts, each beacon signal burst including one or more beacon symbols. A beacon symbol is transmitted using the air link resources of a beacon symbol transmission unit at a relatively high transmission power level with respect to user data symbols transmitted from the same wireless terminal, thus facilitating easy detection by other wireless terminals. The beacon symbols of the beacon signal occupy a small fraction of the total available air link resources. Beacon signals can, and sometimes do, convey wireless terminal identification information, via the location of the beacon symbols within the portion of the air link resource reserved for beacon symbol transmission units.Type: GrantFiled: January 10, 2007Date of Patent: July 8, 2014Assignee: QUALCOMM IncorporatedInventors: Rajiv Laroia, Sundeep Rangan, Arnab Das, Frank A. Lane, Junyi Li
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Patent number: 8767703Abstract: A method of polling in a wireless communications system includes prohibiting polling within a predetermined period and triggering a poll function while polling is prohibited. After the predetermined period has expired the method determines that there are no protocol data units (PDUs) scheduled for transmission or re-transmission and that the poll function was triggered by a “Every Poll_PDU PDU” trigger, and selects a PDU to schedule for re-transmission to fulfill the poll function.Type: GrantFiled: April 28, 2008Date of Patent: July 1, 2014Assignee: Innovative Sonic LimitedInventor: Sam Shiaw-Shiang Jiang
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Patent number: 8767588Abstract: A method and apparatus for maintaining a connection between a wireless transmit/receive unit (WTRU) and a blanket wireless local area network (BWLAN) are described. An inter-working function (IWF) entity in a given network access point (NAP) of the BWLAN maintains lists of WTRUs in respective states. Furthermore, the given NAP maintains a list of neighbor NAPs, and operates in accordance with a selected WTRU mobility protocol. The states may include a “not aware” (NA) state in which the given NAP is actually not aware of a particular WTRU, an “active transmit” (AT) state in which the given NAP is actively transmitting to a particular WTRU, and a “neighbor range” (NR) state for WTRUs indicated in an update report from neighbor (URN) message that the given NAP was not aware of. The WTRU mobility protocol may be a push mobility protocol or a poll mobility protocol.Type: GrantFiled: September 13, 2010Date of Patent: July 1, 2014Assignee: InterDigital Patent Holdings, Inc.Inventors: Alexander Reznik, Chunxuan Ye, Samian Kaur, John L. Tomici, Yuying Dai, Mathilde Benveniste
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Patent number: 8755403Abstract: Systems and methods for reducing overhead by using block acknowledgment with an all polling technique while attempting to meet latency and QoS requirements. Each node transmits a number of packets upon receiving a polling message. The Access Point (AP) then replies with a Block Acknowledgement (BlockAck), which is combined with a subsequent polling message and contains a bitmap that indicates 1 for a successfully received packet and 0 for a failed reception.Type: GrantFiled: November 9, 2011Date of Patent: June 17, 2014Assignee: Hitachi, Ltd.Inventors: Marzieh Veyseh, Ryosuke Fujiwara
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Patent number: 8755770Abstract: Techniques for determining whether a cellular device is suspect, i.e., perhaps serving as an activator for a device such as a bomb. One way of doing this with cellular telephones that are in the idle state is to use a baiting beacon to bait and automatically call all the cellular telephones in an area that are in the idle state. If the call to a given cellular telephone is not answered by a human voice, the cellular telephone is suspect. Another way of doing this with cellular telephones that are in the traffic state is to use surgical analysis to examine the DTX pattern for the telephone. If it indicates persistent silence, the cellular telephone is suspect. The surgical analysis may also be used to trace the DTX pattern back to another telephone that is controlling the suspect cellular device.Type: GrantFiled: August 10, 2009Date of Patent: June 17, 2014Assignee: L-3 Communications CorporationInventor: James D Haverty
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Patent number: 8755348Abstract: Embodiments of the present disclosure describe apparatuses, systems, methods, and articles of manufacture for identifying search space candidates that may be used in the transmission of downlink control information. Other embodiments may be described and claimed.Type: GrantFiled: March 28, 2012Date of Patent: June 17, 2014Assignee: Intel CorporationInventors: Hong He, Jong-Kae Fwu, Yuan Zhu
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Patent number: 8750130Abstract: A communication apparatus having a communication function, which is capable of improving security while ensuring convenience in network communication using the ICMP Echo protocol. It is determined whether or not a source of a received packet is an apparatus lies in the same network as a network in which the communication apparatus is installed. According to the determination result, whether or not to respond to the received packet is judged based on one of a first judgment condition used in a case where the source lies in the same network as the network in which the communication apparatus is installed, and a second judgment condition used in a case where the source does not lie in the same network as the network in which the communication apparatus is installed. According to the judgment result, a response to the received packet is sent back.Type: GrantFiled: September 23, 2011Date of Patent: June 10, 2014Assignee: Canon Kabushiki KaishaInventor: Nobuhiko Maki
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Patent number: 8743795Abstract: A method is provided for improving reliability in detection of an identifier for a user agent is provided. The method includes the user agent attempting to decode semi-persistent scheduling activation/reconfiguration signaling over a physical downlink control channel only during a discontinuous reception (DRX) on-duration.Type: GrantFiled: September 18, 2009Date of Patent: June 3, 2014Assignee: BlackBerry LimitedInventors: Yi Yu, James E. Womack, Zhijun Cai
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Patent number: 8743765Abstract: Method, apparatus, and computer program product embodiments are disclosed to enable power save modes of operation between mobile wireless devices for direct data transfer in an infrastructure BSS. An example embodiment inserts in a message that is transmitted by the transmitting mobile wireless device, a specified time when a next active direct data transfer period will start so that the devices can remain in power save mode in a direct data transfer link until that time. Then, when the next active direct data transfer period is about to start, the receiving device sends a trigger signal based on the specified time, the trigger signal indicating that the next period is about to start. This confirms to the transmitting device that the receiving device has awakened, so that the transmitting device may start transmitting the data to the receiving device via the direct data transfer link.Type: GrantFiled: September 27, 2011Date of Patent: June 3, 2014Assignee: Nokia CorporationInventors: Naveen Kakani, Jakub Majkowski
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Patent number: 8737195Abstract: A base station outputs first detection information representing a code of a reference signal and representing a mobile device that is determined, on the basis of transition of a status at the time of occurrence of disconnection of the radio link between the mobile device and the base station, to be capable of causing the collision, and second detection information representing a code of a reference signal and representing a mobile device that is determined, on the basis of occurrence of failure of reconnection of the radio link between the mobile device and the base station, to be capable of causing the collision. A collision detection device estimates that, when the code and the mobile device of the first detection information coincide with the code and the mobile device of the second detection information, the collision of the reference signal will be caused.Type: GrantFiled: September 14, 2011Date of Patent: May 27, 2014Assignee: NEC CorporationInventor: Kazunori Ohashi
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Patent number: 8730993Abstract: According to various embodiments, a computer-implemented method is disclosed that includes receiving a field in a frame or a frame from the one or more STAs, wherein the field in a frame or the frame includes information on buffered traffic and a timeout value for a given access category (AC); and scheduling the one or more STAs to transmit uplink traffic simultaneously through a polling frame.Type: GrantFiled: July 12, 2010Date of Patent: May 20, 2014Assignee: Intel CorporationInventors: Michelle Gong, Adrian P. Stephens
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Patent number: 8724612Abstract: A method for adapting data retrieval polling in a mobile wireless device is disclosed. The mobile wireless device is configured in an adaptive pull mode and polls a remote server when a data retrieval polling timer expires. Data retrieval information is stored in the mobile wireless device and the data retrieval polling timer is updated to a value based on the stored data retrieval information. The data retrieval information includes time intervals between successive polls or time delay intervals between data arrival at and retrieval from the remote server. Updates are based on weighted moving averages of the data retrieval information.Type: GrantFiled: January 4, 2011Date of Patent: May 13, 2014Assignee: Apple Inc.Inventor: Abdul-Munem Al-Khudairi
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Patent number: 8724611Abstract: An authorization scheme limits the number of nodes that send out resource utilization messages. Here, a first node may determine whether a second node is allowed to transmit a resource utilization message, and send a message to the second node indicative of this determination. The second node may then determine whether to send out a resource utilization message based on the message from the first node and the quality of service associated with receive traffic at the second node. In some aspects, a node that is allowed to transmit a RUM may be identified based on whether the node is expected to be scheduled to use a given resource.Type: GrantFiled: January 27, 2009Date of Patent: May 13, 2014Assignee: QUALCOMM IncorporatedInventors: Rajarshi Gupta, Anastasios Stamoulis
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Patent number: 8717979Abstract: The technology in this application multiplexes transmission associated with multiple users onto the same unsolicited grant service (UGS) radio resource(s) in a packet-based, radio communications system. Normally, the radio resources in a packet-based communications system are dynamically scheduled in response to radio resource requests associated with specific user devices, and the scheduled communications are designed not to use the same radio resource at the same time. However, an unsolicited grant of radio resources for communication between multiple user devices and the packet-based communications system is also established. The communications between those multiple user devices and the packet-based communications system use at least some of the same radio resources associated with the unsolicited grant at the same time.Type: GrantFiled: March 21, 2008Date of Patent: May 6, 2014Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Shiau-He Shawn Tsai, Jonas L. Wiorek
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Patent number: 8718093Abstract: Methods and apparatus are disclosed. A method implemented in a wireless transmit/receive unit (WTRU) includes receiving a packet from a first other WTRU during a transmission opportunity (TxOP) associated with the first other WTRU and forwarding the packet to a second other WTRU during a remaining portion of the TxOP.Type: GrantFiled: December 16, 2011Date of Patent: May 6, 2014Assignee: InterDigital Technology CorporationInventors: Juan Carlos Zuniga, Sudheer A. Grandhi, Marian Rudolf, Joseph Levy
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Patent number: 8711769Abstract: Demodulation and interference parameter estimation in an OFDM receiver is improved by identifying regions, in a two-dimensional array of time-frequency transmission positions, having related interference parameters, such as resulting from the same pre-coding scheme, transmission rank, transmitting antennas, and the like. An interference measure is estimated for each of a plurality of time-frequency positions. The interference measures are analyzed by considering them as pixels, or picture elements, in a two-dimensional image, and applying image processing algorithms to identify the regions having related interference parameters. The image processing algorithms may include operations such as edge detection, segmentation, and/or clustering. The receiver may perform interference suppression or cancellation such as interference rejection combining of data extracted from signals received within an identified time-frequency region having related interference parameters.Type: GrantFiled: July 16, 2009Date of Patent: April 29, 2014Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Karl Molnar, Gregory E. Bottomley
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Patent number: 8705372Abstract: A communication apparatus having a communication function, which is capable of improving security while ensuring convenience in network communication using the ICMP Echo protocol. It is determined whether or not a source of a received packet is an apparatus lies in the same network as a network in which the communication apparatus is installed. According to the determination result, whether or not to respond to the received packet is judged based on one of a first judgment condition used in a case where the source lies in the same network as the network in which the communication apparatus is installed, and a second judgment condition used in a case where the source does not lie in the same network as the network in which the communication apparatus is installed. According to the judgment result, a response to the received packet is sent back.Type: GrantFiled: September 23, 2011Date of Patent: April 22, 2014Assignee: Canon Kabushiki KaishaInventor: Nobuhiko Maki
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Patent number: 8699508Abstract: A base station poll 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.Type: GrantFiled: October 19, 2004Date of Patent: April 15, 2014Assignee: Intel CorporationInventor: Adrian P. Stephens
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Patent number: 8694016Abstract: Systems, methods, device and apparatus are provided that allocate broadcast delivery capacity based oil popularity measurements associated with broadcasted data objects. By allocating broadcast delivery capacity based on popularity measurements, Quality of Service (QoS) perception can be improved by decreasing the number of reception failures, decreasing the data object access delay and/or decreasing the consumption of wireless device resources, such as battery power and processing capabilities.Type: GrantFiled: December 4, 2006Date of Patent: April 8, 2014Assignee: QUALCOMM IncorporatedInventors: Bharat Ahuja, Bruce Collins
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Patent number: 8687495Abstract: A data packet communication system employs radio link control (RLC) transmission between a transmitter and a receiver with an Automatic Repeat Request (ARQ) arrangement whereby polling of the receiver is accomplished with reduced amount of redundantly transmitted data, such as between an access node and terminal. Upon a polling event, such as emptying of a transmission buffer of the transmitter, expiration of a polling timer, or reaching a radio link control (RLC) protocol data units (PDUs) count threshold, the transmitter sends a polling command to the receiver. This polling command is smaller than any of the RLC PDUs by resegmenting to a variably sized PDU sending a reduced amount of data. With evolving communication standards tending toward larger PDUs, such as in excess of a kilobyte for HSPA+ (High-Speed Packet Access Evolution) and 3GPP LTE (Long Term Evolution), this inefficiency can be of increasing impact.Type: GrantFiled: April 29, 2008Date of Patent: April 1, 2014Assignee: QUALCOMM IncorporatedInventor: Arnaud Meylan
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Publication number: 20140086232Abstract: In a method for estimating a channel at a receiver in a wireless communications network, the receiver obtains channel model parameters for a received signal based on raw channel estimates for the received signal, where each raw channel estimate corresponds to an antenna at the receiver. The receiver combines, for each of a plurality of contiguous subcarriers in the wireless communications network, the channel model parameters to generate a first plurality of combined channel model parameters. The receiver then chooses a first set of indices corresponding to combined channel model parameters from among the first plurality of combined channel model parameters having magnitudes passing a combined channel model parameter threshold. The receiver then estimates the channel in a sparse domain based on the first set of indices.Type: ApplicationFiled: September 24, 2012Publication date: March 27, 2014Applicant: Alcatel-Lucent USA Inc.Inventors: Jonathan LING, Dmitry CHIZHIK
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Patent number: 8675547Abstract: According to one embodiment of the invention, a method comprises transmitting a Layer 2 (L2) frame from a first wireless device. Upon receipt of a frame in response to the L2 frame, the first wireless device uses information conveyed in the frame to modify its functionality.Type: GrantFiled: July 28, 2006Date of Patent: March 18, 2014Assignee: Aruba Networks, Inc.Inventors: Subbu Ponnuswamy, Pradeep Iyer
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Patent number: 8665847Abstract: Embodiments enable prioritization and selection of network access points (NAP) by a computing device using NAP attribute values. The computing device obtains the attribute values based on a location of the computing device and/or proximate NAPs detected by the computing device. The obtained attribute values are compared to a state of the computing device (e.g., sensor values), user preferences, or other criteria to select at least one of the NAPs for connection with the computing device. In some embodiments, a user of the computing device is presented with a list of Wi-Fi access points ranked according to relevance to the computing device and/or user.Type: GrantFiled: November 8, 2011Date of Patent: March 4, 2014Assignee: Microsoft CorporationInventors: Vladimir Holostov, Thomas W. Kuehnel, Shai Guday, Naile Daoud, Tript Singh Lamba
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Patent number: 8654773Abstract: Systems and methods for coexistence of WLAN and Bluetooth networks are described. At least one embodiment includes a method for operating a wireless device in both a 802.11 network and a Bluetooth network. In accordance with some embodiments, the method comprises monitoring transmission of Synchronous Connection Oriented (SCO) slots over the Bluetooth network, informing an access point (AP) in the 802.11 network not to transmit to the device before the end of an SCO slot, transmitting a power save trigger to the AP to retrieve buffered data from the AP, and transmitting data to the AP.Type: GrantFiled: November 30, 2007Date of Patent: February 18, 2014Assignee: Conexant Systems, Inc.Inventors: Menzo Wentink, Doug Berger, Trent Carter
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Patent number: 8655279Abstract: 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.Type: GrantFiled: October 19, 2012Date of Patent: February 18, 2014Assignee: Marvell World Trade Ltd.Inventor: Raja Banerjea
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Patent number: 8644269Abstract: A network includes an access point using a first protocol and a station using both the first protocol and a second protocol. The station uses the first protocol before a first threshold and a second protocol after the first threshold. A first duration between the second threshold and the first threshold is at least of sufficient length for the station to receive one data packet from the access point and send an acknowledgment. The station transmits to the access point a current clear-to-send packet at a current time during a current exchange based on success or failure of a previous exchange during which a previous clear-to-send packet was transmitted to the access point at a previous time.Type: GrantFiled: August 21, 2012Date of Patent: February 4, 2014Assignee: Texas Instruments IncorporatedInventors: Yanjun Sun, Ariton E. Xhafa, Xiaolin Lu, Josef Peery
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Patent number: 8638709Abstract: A method of establishing wireless communications between an interrogator and individual ones of multiple wireless identification devices, the method comprising combining tree search and Aloha methods to establish communications between the interrogator and individual ones of the multiple wireless identification devices without collision. A system comprising an interrogator, and a plurality of wireless identification devices configured to communicate with the interrogator In a wireless fashion, the respective wireless identification devices having a unique identification number, the interrogator being configured to employ tree search and Aloha techniques to determine the unique identification numbers of the different wireless identification devices so as to be able to establish communications between the interrogator identification and individual devices without ones of the multiple wireless collision by multiple wireless identification devices attempting to respond to the interrogator at the same time.Type: GrantFiled: September 14, 2012Date of Patent: January 28, 2014Assignee: Round Rock Research, LLCInventor: Clifton W. Wood, Jr.
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Patent number: 8638772Abstract: A method for granting a contention-free transmission opportunity in a wireless LAN system using a combined channel comprised of a plurality of subchannels, and a station supporting the method are provided. The method for granting transmission opportunity includes: transmitting a transmission opportunity granting frame granting a transmission opportunity of a plurality of target stations; and receiving a frame from each of the plurality of target stations which have acquired a transmission opportunity upon receiving the transmission opportunity granting frame. The station supports granting of a transmission opportunity by the foregoing method.Type: GrantFiled: March 10, 2010Date of Patent: January 28, 2014Assignee: LG Electronics Inc.Inventor: Yong Ho Seok
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Patent number: 8634338Abstract: A method of establishing wireless communications between an interrogator and individual ones of multiple wireless identification devices, the method comprising combining tree search and Aloha methods to establish communications between the interrogator and individual ones of the multiple wireless identification devices without collision. A system comprising an interrogator, and a plurality of wireless identification devices configured to communicate with the interrogator In a wireless fashion, the respective wireless identification devices having a unique identification number, the interrogator being configured to employ tree search and Aloha techniques to determine the unique identification numbers of the different wireless identification devices so as to be able to establish communications between the interrogator identification and individual devices without ones of the multiple wireless collision by multiple wireless identification devices attempting to respond to the interrogator at the same time.Type: GrantFiled: October 17, 2011Date of Patent: January 21, 2014Assignee: Round Rock Research, LLCInventor: Clifton W. Wood, Jr.
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Patent number: 8630252Abstract: A mobile station apparatus for transmitting feedback information in a wireless communication system and method thereof are disclosed. According to the present invention, feedback information is transmitted by a mobile station in a wireless communication system. The present invention includes receiving an allocation of a specific frequency partition from a base station by a fractional frequency reuse (FFR), generating a prescribed type feedback information on the specific frequency partition by measuring a channel quality of the specific frequency partition, and transmitting the feedback information on the specific frequency partition to the base station. Preferably, the mobile station can transmit feedback information on a frequency partition unallocated by the base station based on the received feedback request information. Accordingly, feedback overhead can be decreased in feedback transmission.Type: GrantFiled: July 7, 2009Date of Patent: January 14, 2014Assignee: LG Electronics Inc.Inventors: Han Gyu Cho, Bin Chul Ihm, Jin Sam Kwak
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Patent number: 8630255Abstract: A wireless device for wireless communication in a wireless area network. The wireless device includes a main radio channel for exchanging data with an access point in the wireless area network, as well as an auxiliary radio channel for scanning for availability of other access points in the wireless area network.Type: GrantFiled: September 17, 2007Date of Patent: January 14, 2014Assignee: Marvell International Ltd.Inventors: Manfred Kunz, Joachim Schmalz
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Patent number: 8625507Abstract: An apparatus and method for operating a Multiple Input Multiple Output (MIMO)-capable subscriber node are disclosed. In one embodiment, an apparatus includes a MIMO-capable physical layer transceiver and a Medium Access Control (MAC) layer block that measures a received transmission to determine channel conditions. Upon receiving a transmission wherein said channel conditions meet specified conditions, the MAC layer block transmits a message to an access point indicating that the apparatus wants to switch between a non-MIMO mode and a MIMO mode, and upon receiving an acknowledgement, the MAC layer block switches between the non-MIMO mode and the MIMO mode. An apparatus for operating an access node is also disclosed.Type: GrantFiled: March 7, 2011Date of Patent: January 7, 2014Assignee: Cisco Technology, Inc.Inventors: Ozgur Gurbuz, David Pignatelli, David Stephenson, Eldad Perahia, Bretton Douglas, Ender Ayanoglu
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Patent number: 8619752Abstract: A data packet communication system employs radio link control (RLC) transmission between a transmitter and a receiver with an Automatic Repeat Request (ARQ) arrangement whereby polling of the receiver is accomplished with reduced amount of redundantly transmitted data, such as between an access node and terminal. Upon a polling event, such as emptying of a transmission buffer of the transmitter, expiration of a polling timer, or reaching a radio link control (RLC) protocol data units (PDUs) count threshold, the transmitter sends a polling command to the receiver. This polling command is smaller than any of the RLC PDUs, which are conventionally resent with a polling bit set to evoke a STATUS PDU from the receiver. With evolving communication standards tending toward larger PDUs, such as in excess of a kilobyte for HSPA+ (High-Speed Packet Access Evolution) and 3GPP LTE (Long Term Evolution), this inefficiency can be of increasing impact.Type: GrantFiled: March 13, 2008Date of Patent: December 31, 2013Assignee: QUALCOMM IncorporatedInventors: Arnaud Meylan, Sai Yiu Duncan Ho, Etienne F. Chaponniere
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Patent number: 8615020Abstract: A method and apparatus for adaptively obtaining bandwidth requests in a broadband wireless communication system. The method and apparatus includes dynamically varying technique combinations enabling a plurality of users to efficiently request bandwidth from a shared base station. A user may “piggyback” a new bandwidth request upon, or set a “poll-me bit” within, presently allocated bandwidth. A base station may poll users, individually or in groups, by allocating unrequested bandwidth for new requests. Polling may respond to a “poll-me bit,” and/or it may be adaptively periodic at a rate based on communication status parameters, such as recent communication activity and connection QoS levels Group polling permits a possibility of collisions. Polling policies may be established for dynamically varying user groups, or may be determined for each user. Dynamic selection of appropriate polling techniques makes use of efficiency benefits associated with each technique.Type: GrantFiled: October 13, 2011Date of Patent: December 24, 2013Assignee: Wi-LAN, Inc.Inventors: Brian Spinar, Kenneth L. Stanwood, Sheldon I. Gilbert, Israel Jay Klein, James F. Mollenauer
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Patent number: 8611326Abstract: A location aware mobile device can include a baseband processor for communicating with one or more communication networks, such as a cellular network or WiFi network. In some implementations, the baseband processor can collect network information (e.g., transmitter IDs) over time. Upon request by a user or application, the network information can be translated to estimated position coordinates (e.g., latitude, longitude, altitude) of the location aware device for display on a map view or for other purposes. A user or application can query the location history database with a timestamp or other query to retrieve all or part of the location history for display in a map view.Type: GrantFiled: September 3, 2009Date of Patent: December 17, 2013Assignee: Apple Inc.Inventor: Ronald Keryuan Huang
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Patent number: 8606294Abstract: A method of and system for estimating temporal demographics of mobile users is disclosed. A method of estimating demographic information associated with a selected geographical area includes, for at least one individual, determining a selected geographical area along a portion of a track of travel of the individual and determining demographic information associated with the at least one individual. The method also includes estimating a ratio of individuals transiting into the area versus individuals that are residents of the area and estimating demographic information associated with the area based on the estimated ratio and based on demographic information associated with the at least one individual.Type: GrantFiled: October 4, 2011Date of Patent: December 10, 2013Assignee: Skyhook Wireless, Inc.Inventor: Farshid Alizadeh-Shabdiz
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Patent number: 8605707Abstract: A method and system are disclosed for providing quality of service (QoS)-driven channel access within a basic service set (BSS) in a wireless network. A contention control (CC) frame is sent from a point coordinator (PC) station of the BSS. The CC frame contains information relating to a number of available centralized contention opportunities (CCOs) for receiving a reservation request (RR) in a centralized contention interval (CCI) following the CC frame. The CC frame also contains information relating to the identification of stations from which an RR was successfully received by the PC station in a preceding CCI. The superframe includes a contention-free period (CFP) and a contention (CP). The CC frame is received at a non-PC station in the BSS.Type: GrantFiled: March 5, 2012Date of Patent: December 10, 2013Assignee: AT&T Intellectual Property II, L.P.Inventor: Jin-Meng Ho