Polling Patents (Class 370/346)
  • Patent number: 8412208
    Abstract: Autonomous fractional time reuse is provided. In some embodiments, autonomous fractional time reuse includes determining a number of neighboring base stations of a base station in a heterogeneous network; and pseudo randomly selecting one or more Fractional Time Reuse (FTR) slots for transmission by the base station. In some embodiments, the one or more FTR slots are autonomously selected by the base station without coordinating the selection of the one or more FTR slots with one or more of the neighboring base stations.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: April 2, 2013
    Assignee: AirHop Communications, Inc.
    Inventors: Hanson On, Fei Frank Zhou
  • Patent number: 8411663
    Abstract: A data communication system includes an access point and a plurality of stations each for exchanging wireless data communication messages with the access point. At least some of the messages are in a format that includes at least one message header and a plurality of data units. Each of the data units includes a respective data unit header and a respective data frame. Each data unit header identifies a respective one of the stations as a recipient to receive the respective data frame of the data unit.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: April 2, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Raymond Liao, Raghuveer Chereddy, Joerg Mueller, Stefan Keller, Kai Benjamins, Christoph Weiler
  • Publication number: 20130077616
    Abstract: Systems, devices, and methods for retransmitting protocol data units in wireless communication are provided. In one aspect, a device configured to communicate via a wireless communication link includes a processor. The processor is configured to transmit a plurality of protocol data units (PDUs) to a receiving device, select a first PDU from a set of PDUs that has not been acknowledged by the receiving device, retransmit the first selected PDU with a first poll indicator, select a second PDU from the set, and retransmit the second selected PDU with a second poll indicator. The second PDU is different than the first PDU. In some aspects, the PDUs are selected based on the PDUs' original transmission time. In other aspects, the PDUs may be selected based on the PDU's most recent transmission time.
    Type: Application
    Filed: June 29, 2012
    Publication date: March 28, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Rajasekar Arulprakasam, Sitaramanjaneyulu Kanamarlapudi
  • Patent number: 8401523
    Abstract: An apparatus for controlling Quality of Service (QoS) of a master Bluetooth® terminal in a piconet. A file-specific band setting unit sets information about files and information about bandwidths set for the files, which are stored in the master Bluetooth® terminal, for a content meta database. A QoS controller checks the content meta database when an arbitrary slave Bluetooth® terminal requests file download service, and provides the set bandwidth information of the corresponding file. A balancing Bluetooth® Network Encapsulation Protocol (BNEP) creates a virtual interface when the slave Bluetooth® terminal is accessed, and sets a bandwidth of the virtual interface, which is set for the slave Bluetooth® terminal requesting the download service, to a bandwidth of the corresponding file when the set bandwidth information of the file for which the download service is requested is received from the QoS controller, and provides the download service to the slave Bluetooth® terminal.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: March 19, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventor: In-Ho Kim
  • Patent number: 8400997
    Abstract: A communication system comprising one or more wireless stations programmed to await for an authorizing signal to initiate wireless communications with a network controller or access point. The network controller maintains identification information in different queues, said queues based upon the wireless station's activity. The wireless station identification information is moved between the different queues in response to wireless station activity. Between polling, each mobile station aggregates data for the next opportunity to transmit. Multi-polling may be employed such that more than a single station is polled at a time. Polling is accomplished by polling one of the more active station along with a less active station. The less active station is unlikely to transmit, so collisions are avoided to a certain degree. If a lesser active station becomes active, it is moved into the more active queue and consequently will be polled more often.
    Type: Grant
    Filed: August 1, 2009
    Date of Patent: March 19, 2013
    Assignee: Ubiquiti Networks, Inc.
    Inventors: Robert J. Pera, Sriram Dayanandan
  • Patent number: 8391796
    Abstract: Apparatus and methods for power control for mitigation or control of interference in a wireless communications environment. Control techniques can consider the effect of interference on an access point and the access point can identify interfering wireless terminals and cause a message to be sent to a controlling access point of the interfering wireless terminal to cause the uplink power of the interfering wireless terminal to be adjusted.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: March 5, 2013
    Assignee: SpiderCloud Wirless, Inc.
    Inventors: Murari Srinivasan, Amit Butala, Sayandev Mukherjee
  • Patent number: 8385314
    Abstract: Disclosed are methods and systems for modifying a data-synchronization interval for an access terminal based on a number of access terminals being served by a wireless access point in a coverage area. In at least one embodiment, an access terminal periodically polls at least one network device via the access point for synchronization data according to a first data-synchronization interval. The access terminal receives from the access point information indicative of a number of access terminals being served by the access point in the coverage area. The access terminal determines a second data-synchronization interval based at least in part on a comparison of the number to a threshold value. Subsequent to determining the second data-synchronization interval, the access terminal periodically polls the at least one network device for synchronization data according to the second data-synchronization interval.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: February 26, 2013
    Assignee: Sprint Spectrum L.P.
    Inventors: Jason P. Sigg, Maulik K. Shah, Jasinder P. Singh
  • Patent number: 8385313
    Abstract: A polling arrangement where polling frequency and/or rates may be adjusted according to activities of end stations or other elements being polled. The ability to adjust the polling activities may be used to facilitate reducing or otherwise controlling network resources allocated to the supporting the polling or other messaging depending operations.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: February 26, 2013
    Assignee: Cable Television Laboratories, Inc.
    Inventors: Jennifer Andreoli-Fang, L. Alberto Campos
  • Patent number: 8385244
    Abstract: A method for communicating with a mobile station is presented. The method includes transmitting a first radio block to the mobile station. The first radio block including an indication instructing the mobile station to enter a DTR mode. Before receiving an indication of whether the mobile station is in DTR mode, the method includes retransmitting to the mobile station at least one of the first radio block and a radio block previously transmitted to the mobile station using a timeslot that is not monitored by the mobile station when the mobile station is in the DTR mode.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: February 26, 2013
    Assignee: Research In Motion Limited
    Inventor: David Phillip Hole
  • Patent number: 8379537
    Abstract: A network device management system includes a computer that is connected to a network and at least one network device that is connected to the network and is capable of communicating with the computer via the network. Each network device includes a network device controller that provides the computer with network device information about settings and conditions of each network device of the at least one network device, via the network. The network device information includes connection type information that indicates whether each network device is a wired connection type or a wireless connection type. The computer includes a computer controller that obtains the network device information from each network device via the network and outputs a part or all of contents of the network device information including at least the connection type information, based on the obtained network device information.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: February 19, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Makoto Matsuda
  • Patent number: 8374192
    Abstract: Techniques for improving power saving by stations in wireless networks are described. In an aspect, a source station sends a frame with a buffer status for a recipient station during an awake time for both stations and sends one or more data frames to the recipient station as indicated by the buffer status. The recipient station knows how many data frames to expect based on the buffer status and can go to sleep after receiving the expected number of data frames. In another aspect, a source station receives a frame with information on transmission opportunity (TXOP) bursting receive capability of a recipient station operating in a power save mode. The source station performs channel access at the start of a TXOP and sends multiple data frames in the TXOP to the recipient station based on the TXOP bursting receive capability of the recipient station.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: February 12, 2013
    Assignee: Qualcomm Incorporated
    Inventors: Shravan K. Surineni, Arnaud Meylan, Ajay Dassu
  • Patent number: 8374160
    Abstract: A method of transmitting and receiving feedback information in a multi-cell based wireless communication system using FFR, a mobile station apparatus therefore and a base station apparatus therefore are disclosed. A mobile station is able to obtain FFR configuration information including configuration information on at least one frequency partition to which a corresponding FFR is applied per cell ID. And, the mobile station is able to transmit PMI information to a serving base station using the obtained FFR configuration information. In this case, the PMI information is specifically restricted or recommended by the mobile station among PMIs (precoding matrix indexes) used by at least one neighbor cell in an allocated specific frequency partition.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: February 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Bin Chul Ihm, Su Nam Kim, Ja Ho Koo, Dong Guk Lim, Wook Bong Lee, Jae Wan Kim
  • Patent number: 8374148
    Abstract: A handoff method for a mobile station in a wireless local area network, the handoff method includes outputting a handoff alert message to a present access point, receiving a response message from the present access point, the response message including channel information on access point in an extended service set, and scanning channels by using the channel information to select a new access point.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: February 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyong-uk Choi, Jun-hwan Kim
  • Patent number: 8369304
    Abstract: A method for reducing power consumption in a mobile station is provided. The method includes holding data associated with a first polling message until a first scheduled RF wake-up of the mobile station. The method also includes sending the data associated with the first polling message at substantially the same time as the first scheduled RF wake-up of the mobile station. The method further includes holding a second polling message until a second scheduled RF wake-up of the mobile station. The scheduled RF wake-ups of the mobile station are determined according to a schedule established by a service provider of the wireless communication network. In certain embodiments, the polling messages are associated with an ActiveSync® Ping command.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: February 5, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ravindranathan Sengottaiyan, Sudhindra P. Herle
  • Patent number: 8358609
    Abstract: A method of providing location based service information in a situational network includes establishing the situational network linking a plurality of individuals in response to an indication of an occurrence of a situation. Information related to availability of a service at a plurality of service locations affected by the situation is received, where the service is provided by one or more of a plurality of service providers An individual location associated with each of the plurality of individuals is determined. The available service locations that are in closest proximity to the individual location of the respective individuals is transmitting to each of the individuals based on the availability of the service.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: January 22, 2013
    Assignee: Resource Consortium Limited
    Inventors: Thomas Cona, Eli L. Wendkos, Patrick T. Igoe
  • Patent number: 8356331
    Abstract: A packet structure for a Mobile Display Digital Interface (MDDI) includes a flexible sub-frame length to efficiently transmit large packets. A windowless video stream packet avoids repetitive transmissions of video packets when some parameters are unchanged, saving bandwidth. An enhanced reverse encapsulation packet combines the feature of a separate round trip delay packet with a separate reverse encapsulation packet. A link freeze is used to halt a transmission of a data stream at any point in the transmission and resume the transmission by a host.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: January 15, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Brian Steele, George Alan Wiley, Shashank Shekhar
  • Patent number: 8351380
    Abstract: An Automatic Repeat reQuest (ARQ) method in a communication system having a protocol layer structure, in which a Layer 2 (L2) transmitter for generating an upper layer packet in a size suitable for transmission over a radio channel and transmitting the upper layer packet to a lower layer, transmits, to a receiver, polling information representative of an indicator for ordering the generation of a status report, and performs packet ARQ according to whether the status report is received within a predetermined time.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: January 8, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Soeng-Hun Kim, Gert Jan Van Lie Shout, Himke Van Der Velde
  • Patent number: 8345608
    Abstract: A system and method for transmitting downlink schedule in a WiMax/WiBro relay system is proposed in present invention. In present invention, the task of transmitting the schedule is dispersed from the BS to both of the BS and RS so that several RS may transmit the schedule items simultaneously and therefore the resource of the system is saved.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: January 1, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-Taek Lim, Qi Wu, Hyoung-Kyu Lim, Pan-Yuh Joo
  • Patent number: 8345647
    Abstract: The present invention provides a new and unique method and apparatus for communicating information between two nodes, points or terminals in a wireless local area network (WLAN), where a variable multicast and/or broadcast listening interval and associated signalling is allowed between the two nodes, points or terminals in the wireless LAN network. The two nodes, points or terminals include an access point (AP) or other suitable network node or terminal and a station (STA) or other suitable network node or terminal in the WLAN. The AP and the STA can indicate its capability to support a flexible multicast and broadcast listening interval by using new fields in Beacon and Probe Response frames and in (Re)Association Request Frames. The multicast and broadcast service is setup by using Multicast and Broadcast Service Setup signalling.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: January 1, 2013
    Assignee: Nokia Corporation
    Inventors: Jari Jokela, Jarkko Kneckt
  • Publication number: 20120327926
    Abstract: 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: Application
    Filed: September 5, 2012
    Publication date: December 27, 2012
    Inventors: Stephane Cayla, Arnaud Le Clercq De Lannoy
  • Patent number: 8340074
    Abstract: 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 “window-based” trigger, and selects a PDU to schedule for re-transmission to fulfill the poll function.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: December 25, 2012
    Assignee: Innovative Sonic Limited
    Inventor: Sam Shiaw-Shiang Jiang
  • Patent number: 8335203
    Abstract: Embodiments include systems and methods for allocating time to a plurality of devices in the network of a piconet controller. Embodiments comprise selectively directing a steerable antenna beam of the piconet controller to a plurality of devices in succession during a polling process to receive time allocation requests from one or more of the devices. Subsequent to the polling process, a grant procedure is performed wherein a device is granted permission to transmit in a subsequent time interval. Also during the grant process, one or more devices are instructed to receive from the device granted permission to transmit. The polling process and the grant process occur in the same superframe.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: December 18, 2012
    Assignee: Intel Corporation
    Inventors: Solomon Trainin, Assaf Kasher
  • Patent number: 8331345
    Abstract: A method including: receiving, over a first wireless channel, a first beacon specifying a time interval during which a first wireless client is to communicate with a wireless access point according to an infrastructure network model; in response to receiving the first beacon, causing the first wireless client to exchange packets of data with the wireless base station over the first wireless channel for the time interval specified in the first beacon, and in response to expiration of the time interval specified in the first beacon, (i) causing the first wireless client to exchange packets of data with a second wireless client over a second wireless channel according to an ad hoc network model, or (ii) causing the first wireless client to enter a sleep state.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: December 11, 2012
    Assignee: Marvell International Ltd.
    Inventors: Peter Loc, Foo Keong Tang
  • Patent number: 8331376
    Abstract: A mobile communication system includes a radio network control apparatus having inside a function block for processing a downlink shared channel and table means for storing various setting information related to the downlink shared channel communication and the downlink shared channel multi-cast communication. According to the information, a multi-cast communication (including uni-cast communication) is realized by using the downlink shared channel for one or more mobile apparatuses. Moreover, a base station has a function to transmit the downlink shared channel data and signaling data received from a radio network control apparatus, to a mobile apparatus via a radio line. Furthermore, it is possible to multi-cast data selectively to a particular mobile apparatus being call-connected.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: December 11, 2012
    Assignee: Fujitsu Limited
    Inventors: Eiji Ikeda, Tomonori Kumagai, Tetsuo Tomita, Kazunari Kobayashi
  • Patent number: 8320357
    Abstract: A wireless telecommunications system for stationary or semi-stationary equipment includes a main node and a first plurality of terminals belonging to the same access subset and arranged to receive from and transmit to the main node. The main node transmits in at least one beam and receives in at least two beams, and the system indicates to the terminals that they may or may not transmit to the central node. Based upon certain criteria, two or more terminals located in different receive beams of the main node may be given permission to transmit to the central node simultaneously. Suitably, two or more terminals which are given permission to transmit simultaneously do so using the same frequency, or the same code, or the same time slot.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: November 27, 2012
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Anna Barbro Ulrika Engström, Björn Gunnar Johannisson, Martin Nils Johansson, Dag Jungenfelt
  • Patent number: 8320321
    Abstract: A hybrid TDMA-CSMA MAC protocol is provided for allocating time slots within a frame having a structure in which transmission time is divided into a first number of actual TDMA time slots and a second number of “virtual” CSMA time slots. Each time a given node receives a Hello message, it can calculate variables based on an HSN field. A ratio of the first number to the second number can be dynamically adjusted depending upon the traffic conditions. When TDMA time slots within the frame are freed (e.g., no longer being used), slot position optimization techniques are provided for moving these freed TDMA time slots back into the CSMA portion of the frame and reallocating or moving other TDMA time slots into the portion of the frame that was previously occupied by the freed TDMA time slots to thereby maximize resource utilization.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: November 27, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Avinash Joshi, Manish Shukla
  • Patent number: 8315242
    Abstract: A communications device utilized in a wireless communications system has an RLC entity with a transmitting side and a receiving side. Handling timers during reestablishment of the transmitting side includes only reestablishing the transmitting side in the RLC entity of the communications device, stopping a first timer corresponding to the transmitting side, and prolonging and not stopping a second timer corresponding to the transmitting side. The second timer is not a periodic timer.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: November 20, 2012
    Assignee: Innovative Sonic Limited
    Inventor: Sam Shiaw-Shiang Jiang
  • Patent number: 8310933
    Abstract: A method and a device for reporting the number of correctly decoded transport blocks in a wireless system. The maximum number of correctly decoded transport blocks within a reporting period is determined. Then the actual number of correctly decoded transport blocks is determined and cultivated into an indication thereof on the basis of the maximum number. The indication is sent to a network element capable of decoding it for analysis.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: November 13, 2012
    Assignee: Core Wireless Licensing S.a.r.l.
    Inventors: Benoist Sébire, Harri Jokinen
  • Patent number: 8311022
    Abstract: A method for accessing a hybrid network including a wide area network and a distributed network, a gateway apparatus, a wireless terminal and a gateway communication system are disclosed for reducing the power consumption of the wireless terminal which is an access gateway. The method comprises: sensing by a gateway apparatus a relay request slot on a downlink common control channel of the wide area network; transmitting by a wireless terminal a relay request signal requesting to relay a data packet to be transmitted, in the relay request slot on the downlink common control channel; and if the relay request signal from the wireless terminal is sensed in the relay request slot, establishing by the gateway apparatus a connection with the wireless terminal in a distributed network environment.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: November 13, 2012
    Assignee: NTT DoCoMo, Inc.
    Inventors: Lei Du, Yong Bai, Lan Chen, Hidetoshi Kayama
  • Patent number: 8306010
    Abstract: Embodiments of systems and methods for uplink multi-user multiple input multiple output (MU MIMO) medium access and error recovery are generally described herein. Other embodiments may be described and claimed.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: November 6, 2012
    Assignee: Intel Corporation
    Inventors: Michelle X Gong, Robert Stacey
  • Patent number: 8295159
    Abstract: Providing for improved acknowledgment and retransmission protocols for wireless communication is described herein. By way of example, the acknowledgment and retransmission protocols can comprise including a poll element, or reply command, within a data unit that is part of a wireless transmission. A timer is set following sending the wireless transmission, and if a reply is not received within expiration of the timer, retransmission is triggered. According to specific aspects, retransmission comprises resending the data unit that includes the poll element or reply command. In this manner, redundant retransmission can be mitigated, whether because a receiver fails to successfully receive one or more subsets of the wireless transmission, or because the transmitter fails to obtain a reply to the wireless transmission.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: October 23, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Shailesh Maheshwari, Sai Yiu Duncan Ho
  • Patent number: 8296619
    Abstract: A method and an apparatus for indicating a temporary block flow (TBF) to which a piggybacked acknowledgement/non-acknowledgement (PAN) field is addressed. A method and apparatus of performing receive processing to reduce the probability of false acceptance of erroneous PANs are also disclosed. A transmit station generates a PAN check sequence (PCS) and performs a channel coding on a PAN field and the PCS. The transmit station scrambles the encoded bits of the PAN field and the PCS with a TBF-specific scrambling code. Because of the scrambling, the PCS decoding at a receive station will pass if the data block is received by an intended receive station, while the PCS decoding will fail if received by a non-intended receive station. Alternatively, the scrambling may be performed before the channel coding. Alternatively, the transmit station may combine the PAN field and a temporary flow identity (TFI) to generate a PCS.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: October 23, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Yan Li, Stephen G. Dick, Prabhakar R. Chitrapu, Marian Rudolf, Behrouz Aghili, Khushali N. Manseta
  • Patent number: 8290490
    Abstract: A method for handling registration requests in a cellular wireless communication system. The method includes determining that a transmission-success rate of messages sent via the forward-link of an air interface is less than a threshold success rate. The method further includes, in response to the determination that the system has less than a threshold transmission success rate, increasing a frequency at which mobile stations register with the cellular wireless communication system via the air interface.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: October 16, 2012
    Assignee: Sprint Spectrum L.P.
    Inventors: Ashish Bhan, Jasinder P. Singh, Maulik K. Shah, Anil H. Singh, Jason P. Sigg
  • Patent number: 8284750
    Abstract: 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: Grant
    Filed: March 29, 2010
    Date of Patent: October 9, 2012
    Assignee: Apple Inc.
    Inventors: Stephane Cayla, Arnaud Le Clercq De Lannoy
  • Publication number: 20120250672
    Abstract: A wireless communication device, a wireless communication system and a method of transmitting by a piconet controller (PNC) a poll request frame using beamforming techniques to one or more devices, wherein the poll request frame includes a time offset for sending a poll response frame by the device. The PNC receives the poll response frame with a channel bandwidth allocation request and dynamically allocating a channel bandwidth to the one or more devices according to the channel bandwidth allocation request.
    Type: Application
    Filed: June 13, 2012
    Publication date: October 4, 2012
    Inventors: Carlos CORDEIRO, Solomon B. TRAININ
  • Patent number: 8270909
    Abstract: The present disclosure includes systems, apparatuses, and techniques relating to wireless local area network devices. Systems, apparatuses, and techniques include communicating with multiple wireless communication devices to determine characteristics of spatial wireless channels, determining steering matrices based on one or more outputs of the communicating, and transmitting signals that concurrently provide data to the wireless communication devices via different spatial wireless channels. The signals can be spatially steered to the wireless communication devices based on the steering matrices.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: September 18, 2012
    Assignee: Marvell World Trade Ltd.
    Inventors: Hongyuan Zhang, Hui-Ling Lou, Rohit U. Nabar, Yong Liu
  • Patent number: 8270376
    Abstract: Methods for improving uplink communications in a Wideband Code Division Multiple Access (WCDMA) communication system, wherein mobile terminals can transmit at various transmission power levels. In a mobile terminal, the method includes the steps of receiving a configuration message having at least one of a power offset parameter and a maximum number of retransmission attempts parameter; when the mobile terminal performs a non-scheduled transmission, it transmits according to the parameters contained in the configuration message. In a network node, the method includes the steps of transmitting to at least one mobile terminal the configuration message having at least one of a power offset parameter and a maximum number of retransmission attempts parameter; and, adjusting a power setting for the transmission of acknowledgement or negative-acknowledgement messages from the wireless network to one or more of mobile terminals.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: September 18, 2012
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Erik Dahlman, Eva Englund, Jung-Fu Cheng, Yi-Pin Eric Wang, Maria Edvardsson, Stefan Parkvall, Janne Peisa
  • Patent number: 8271582
    Abstract: A relay device includes a first communication unit that receives a request including processing object data from a client device; a data processing unit that obtains a first processing result by performing a relay-device-side process of equivalent algorithm to that of a server-side process, which is performed by a server, on the processing object data; a second communication unit that transmits the request to the server, and receives a second processing result, which corresponds to the first processing result and is obtained by performance of the server-side process on the processing object data, from the server as a response; and a control unit that determines whether the second processing result has been transmitted to the client device. When the second processing result has not been transmitted to the client device, the first communication unit transmits the first processing result to the client device.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: September 18, 2012
    Assignee: Ricoh Company, Ltd.
    Inventor: Kunio Okita
  • Patent number: 8270378
    Abstract: A network includes an access point and a station. The station transmits to the access point a current clear-to-send packet at a current time during a current exchange. The transmission is based on success or failure of a previous exchange during which a previous clear-to-send packet was transmitted at a previous time.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: September 18, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Yanjun Sun, Ariton E. Xhafa, Xiaolin Lu, Josef Peery
  • Patent number: 8260207
    Abstract: Apparatus and methods of performing interference mitigation in a communication network. The interference mitigation can include a controller sending a message to a first access point instructing the first access point to measure at least one signal transmitted by a first wireless terminal communicating a signal having known characteristics; the controller receiving from the first access point signal measurement information; and the controller communicating at least some of the signal measurement information received from the first access point to a second access point.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: September 4, 2012
    Assignee: SpiderCloud Wireless, Inc.
    Inventors: Murari Srinivasan, Amit Butala, Sayandev Mukherjee
  • Patent number: 8259648
    Abstract: A method for communicating data in a wireless control area network, where the wireless control area network includes one or more sensor nodes configured to facilitate acquisition of patient data and an access coordinator configured to facilitate acquisition of the patient data from the one or more sensor nodes, is presented. The method includes creating a correlation between one or more poll packets from an access coordinator and time of arrival of data at one or more sensor nodes. Systems and computer-readable medium that afford functionality of the type defined by this method is also contemplated in conjunction with the present technique.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: September 4, 2012
    Assignee: General Electric Company
    Inventor: Kiran Pratapagiri
  • Patent number: 8248982
    Abstract: A portable media player device is capable of operating in a wireless network. The wireless portable media player device can bootstrap and synchronize with an ad hoc network with low power consumption. Neighbor portable media player devices in an ad hoc network can be discovered by the wireless portable media player device. The portable media player device can establish and terminate connections to neighbor portable media player devices. The portable media player device can transfer data in a high speed data transfer mode or a power save data transfer mode, while concurrently permitting discovery by other devices. The portable media player device operates in a power save mode during an inactive portion of a periodic discovery interval.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: August 21, 2012
    Assignee: Microsoft Corporation
    Inventors: Abhishek Abhishek, Hui Shen, Jiandong Ruan, Yasser Asmi, David Proctor
  • Patent number: 8243663
    Abstract: 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: Grant
    Filed: May 13, 2008
    Date of Patent: August 14, 2012
    Assignee: Wi-LAN, Inc.
    Inventors: Brian Spinar, Kenneth L. Stanwood
  • Patent number: 8243705
    Abstract: A system for transmitting data directly between a plurality of client network devices in a network having an Access Point (“AP”) device separate from the plurality of client network devices is disclosed. The system may include a first client network device having a first client (“STA”) module and a second client network device of the plurality of client network devices.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventor: Stephen R. Palm
  • Patent number: 8233457
    Abstract: A method of providing synchronization-free station locating in a wireless network is provided. In this method, an AP having a known location sends a unicast packet to the station and notes its time of departure TOD(D). The station receives the unicast packet, notes its time of arrival TOA(D), sends an acknowledgement packet to the AP, and notes its time of departure TOD(D_ACK). The AP receives the acknowledgment packet and notes its time of arrival TOA(D_ACK). Notably, a distance between the AP and the station can be accurately determined using a first difference between the TOA(D_ACK) and the TOD(D) and a second difference between the TOD(D_ACK) and the TOA(D). A plurality of such computed distances between a plurality of APs and the station can be used to determine an accurate location of the station.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: July 31, 2012
    Assignee: Qualcomm Atheros, Inc.
    Inventors: Qifan Chen, Ning Zhang, James Cho, William J. McFarland
  • Patent number: 8233468
    Abstract: Exemplary embodiments of the present invention illustrate a probability time division multiplexing polling method and a wireless identifier reader controller thereof. The probability time division multiplexing polling method is used to control a plurality of wireless identifier readers to be turned on or off. First, one of the wireless identifier readers is randomly selected according to a probability model, wherein the probability model presents the probabilities for detecting an identifier tag of the wireless identifier readers. Then, the selected wireless identifier reader is turned on for a predetermined time period.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: July 31, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Tsu-Kuang Yang, Jen-Yau Kuo, Tung-Hung Lu, Kuo-Shu Luo, Li-Dien Fu, Min-Hsien Weng, Chih-Wei Chao
  • Patent number: 8233876
    Abstract: Various embodiments are disclosed relating to scheduling data transmissions to improve power efficiency in a wireless network. In an example embodiment, uplink transmissions may be scheduled after the downlink transmissions within the frame sequence. One or more nodes having only scheduled downlink transmissions during the frame sequence may be scheduled for downlink transmissions at or near the start of the downlink transmissions. In another embodiment, one or more nodes having only scheduled uplink transmissions during the frame sequence may be scheduled for uplink transmissions at or near the end of the uplink transmissions. In yet another embodiment, one or more nodes having scheduled both downlink and uplink transmissions during the frame sequence may be scheduled for transmissions near a transition from downlink to uplink transmissions.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: July 31, 2012
    Assignee: Nokia Corporation
    Inventor: Naveen K. Kakani
  • Patent number: 8233469
    Abstract: A relay device receives transfer data from a transfer-source terminal and transfers the received transfer data to a transfer-destination terminal via relaying performed by another relay device. When the transfer data is received, the relay device establishes a direct communication with the other relay device, if information regarding the other relay device is attached to the received transfer data. If information regarding the other relay device is not attached, then the relay device attaches information regarding itself to the transfer data and transfers the resulting transfer data to a wireless control station.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: July 31, 2012
    Assignee: Panasonic Corporation
    Inventors: Hironori Nakae, Yoshitaka Ohta, Yosuke Ukita
  • Patent number: 8228889
    Abstract: A communication apparatus which generates a single physical frame including a plurality of MAC frames, and which transmits the physical frame. The physical frame has variable-length bitmap information which includes bits corresponding to the plurality of MAC frames, respectively, and length information of the bitmap information. The communication apparatus can include a transmission scheme selecting device configured to select a transmission scheme of the physical frame to be transmitted as a response to the polling frame from a plurality of candidates in such a manner as to adapt to a channel estimate result estimated by the channel estimating device. The transmission scheme in this arrangement includes at least one of a modulation scheme and a coding ratio.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: July 24, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuyuki Nishibayashi, Masahiro Takagi, Tomoko Adachi, Tetsu Nakajima, Yoriko Utsunomiya, Daisuke Takeda
  • Patent number: 8223739
    Abstract: A wireless communication device, a wireless communication system and a method of transmitting by a piconet controller (PNC) a poll request frame using beamforming techniques to one or more devices, wherein the poll request frame includes a time offset for sending a poll response frame by the device. The PNC receives the poll response frame with a channel bandwidth allocation request and dynamically allocating a channel bandwidth to the one or more devices according to the channel bandwidth allocation request.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: July 17, 2012
    Assignee: Intel Corporation
    Inventors: Carlos Cordeiro, Solomon B. Trainin