Polling Patents (Class 370/449)
-
Patent number: 8989059Abstract: The present invention discloses a method for triggering a status report of automatic repeat request. When a receiver acknowledged mode radio link control entity detects that received radio link control layer PDUs are missing, a timer T1 is set. When the timer T1 is running, new timer is not set even if a new missing radio link control layer PDU is detected. When the timer T1 is running, if the receiver acknowledged mode radio link control entity has received all missing radio link control layer PDUs which are detected before setting T1, the timer T1 is stopped. When the timer T1 times out, the receiver acknowledged mode radio link control entity triggers the status report.Type: GrantFiled: May 30, 2008Date of Patent: March 24, 2015Assignee: ZTE CorporationInventor: Jian Zhang
-
Patent number: 8971708Abstract: A system, a method and a related device for signal transmission are provided in order to improve utilization efficiency of the fiber.Type: GrantFiled: March 17, 2010Date of Patent: March 3, 2015Assignee: China Mobile Communications CorporationInventors: Xiaoqing Huang, Han Li, Lei Wang, Dechao Zhang
-
Patent number: 8964574Abstract: A data communication network (DCN) having a plurality of network devices coupled to the DCN with at least one of the network devices having a “boot once” connectivity manager processor (CMP). The CMP receives its power over the DCN rather than from the power applied to the network devices. The CMP can execute special operating system code and maintain network connectivity even if the network device itself is powered off, is being booted or is otherwise non-functional. The CMP is also coupled to the network device's memory so that it may respond to out-of-band polling requests for device status information from network management tools. With CMP, network administrators can monitor the boot process of network devices, determine that a network device is non-functional due to power loss and can maintain an accurate inventory status of spare network devices that are stored un-powered in a spares closet.Type: GrantFiled: August 8, 2013Date of Patent: February 24, 2015Assignee: Cisco Technology, Inc.Inventors: Douglas A. Gourlay, Prashant Gandhi, Mark McKee, Omar G. Abuabara
-
Patent number: 8964774Abstract: A communication protocol for a lighting control system having a plurality of control devices coupled to a communication link uses a polling technique to coordinate the transmission of digital messages between the control devices. When the control devices are powered up, one of the control devices is established as a “master” device. During normal operation, the master device transmits a standard poll message to each of the control devices in succession using a unique semi-permanent Poll ID for each of the control devices. The master device periodically transmits a Poll-ID-Request poll message to the control devices allow those devices that do not have a Poll ID to request a Poll ID. If a control device determines either that the master device is not transmitting poll messages to it, or that another control device has the same Poll ID, the control device drops its Poll ID and acquires another Poll ID.Type: GrantFiled: October 5, 2012Date of Patent: February 24, 2015Assignee: Lutron Electronics Co., Inc.Inventor: R. Paul Stocker
-
Patent number: 8964586Abstract: Embodiments support stringent Quality of Service (QoS) requirements using adaptations to the existing Bluetooth Low Energy (BLE) protocols. In systems using an enhanced BLE protocol, the master send a poll frame at selected connection intervals or poll intervals. The duration of the connection interval and/or poll interval may be calculated based upon desired QoS parameters, such as delay, target packet error rate (PER), frame error rate (FER), and/or jitter. The master may consider the connection interval lost if a frame is not received from the slave after a predetermined number (m) of consecutive poll frames are transmitted. The value m may be set relatively high to provide more robustness in the system. However, the poll interval may also need to be adjusted to meet QoS requirements. The slave may be required to transmit a packet—that may or may not carry data—in response to every mth received poll.Type: GrantFiled: August 3, 2012Date of Patent: February 24, 2015Assignee: Texas Instruments IncorporatedInventors: Ariton E. Xhafa, Jin-Meng Ho
-
Patent number: 8958411Abstract: A method of transmitting data is performed by detecting a triggering of a first event, further detecting a triggering of a second event until a third event occurs, and performing a first action if the triggering of the second event is not detected, wherein the first action is based on the detected first event. The first event may be the expiry of a poll retransmit timer, the second event may be a detecting whether a ACK or NACK is not received, the third event may be a next transmission opportunity, and the first action may be setting a polling bit of a data PDU to be transmitted.Type: GrantFiled: March 17, 2009Date of Patent: February 17, 2015Assignee: LG Electronics Inc.Inventors: Sung-Duck Chun, Seung-June Yi, Sung-Jun Park, Young-Dae Lee
-
Patent number: 8953528Abstract: Various embodiments provide an apparatus and method for adapting wireless sensor network device operation to ambient RF noise. An example embodiment includes: initializing a noise threshold value to a default value; detecting an ambient RF noise level on a plurality of channels of a wireless network device; if the ambient RF noise level detected on a pre-determined number of channels is above the noise threshold value, adjusting the noise threshold value by an increment and retesting the ambient RF noise level on the plurality of channels; if the noise threshold value exceeds a pre-determined maximum noise threshold value, suspending data communications by the wireless network device; and if the ambient RF noise level detected on a pre-determined number of channels is below the noise threshold value, retaining the noise threshold value and enabling data communications by the wireless network device.Type: GrantFiled: June 2, 2010Date of Patent: February 10, 2015Assignee: SynapSense CorporationInventors: Seokman Paul Han, Rituparna Ghosh, Raju Pandey
-
Publication number: 20140369362Abstract: TDMA communications between a host device and a number of clients on a communications channel are dynamically adapted to allocate or de-allocate time slots in response to changes in the number of active clients. The system initially operates in a startup mode in which the host device transmits a startup message on the communications channel and assigns a timeslot in a TDMA cycle in response to connection requests received from each of the requesting clients. After exiting the startup mode, the system operates in a normal mode in which the host device initiates the TDMA cycle by transmitting a polling message on the communications channel that indicates a number of timeslots occurring within that particular TDMA cycle. The host changes the number of timeslots indicated in the polling message to responsively adapt duration of the TDMA cycle as the number of clients communicating via the communications channel changes.Type: ApplicationFiled: June 13, 2013Publication date: December 18, 2014Inventors: Brett Chessher, Scott Fillingim
-
Patent number: 8885504Abstract: The embodiment of the disclosure discloses a method, apparatus and system for bandwidth aggregation of a MiAN. The method is applied in an aggregation system. The aggregation system comprises a master MiAN and one or more slave MiANs, the master MiAN and the one or more slave MiANs are connected to a WAN via WAN links respectively corresponding to the master MiAN and the one or more slave MiANs, the master MiAN establishes communication link with the one or more slave MiANs via a proximity interface.Type: GrantFiled: April 27, 2012Date of Patent: November 11, 2014Assignee: NTT DoCoMo, Inc.Inventors: Xin Xia, Qun Zhao, Yixue Lei, Yongsheng Zhang
-
Patent number: 8880122Abstract: A mobile computing device includes a processor, a transceiver coupled to the processor, and a display device coupled to the processor. The processor is configured to display a plurality of first names representing a plurality of electronic devices on the display device, each first name associated with one of the electronic devices, each of the electronic devices being capable of communicating with the mobile computing device. The processor is further configured to receive a selection of one of the first names, and display a second name in response to the selection of the selected first name, the second name being associated with the first name.Type: GrantFiled: August 31, 2007Date of Patent: November 4, 2014Assignee: QUALCOMM IncorporatedInventor: Moses Lynn George
-
Patent number: 8880909Abstract: An embodiment of the invention provides a method for providing power to a USB client device and polling for a correct protocol. A USB host device provides power and a first part of a first handshake determined by a first protocol. The host then monitors the client for a second part of the first handshake. When the second part of the first handshake is detected by the host, the client recognizes that power may be applied according to the first protocol. When the second part of the first handshake is not presented by the client device, the host provides a first part of a second handshake according to a second protocol. When the second part of the second handshake is provided by the client, the host the client recognizes that power may be applied according to the second protocol.Type: GrantFiled: May 5, 2010Date of Patent: November 4, 2014Assignee: Texas Instruments IncorporatedInventors: Steven R. Tom, Leland Scott Swanson
-
Patent number: 8874167Abstract: A communication device comprises a single radio resource unit that is shared by a plurality of virtual modems (VMs), each uniquely associated with a single one of a plurality of SIM cards. Traffic related to the SIM cards are concurrently handled utilizing corresponding VMs. Available radio resource in the single radio resource unit are shared by the VMs based on corresponding VM states, namely, an active state, an idle state and a suspended state. VMs in an idle state concurrently monitor paging events and concurrently perform idle mode procedures such as location updating. VMs not related to an intended traffic are suspended. A VM related to the intended traffic is transitioned from an idle state to an active state to enable the communication for the intended traffic. Once the communication is complete, the suspended VMs are resumed to continue idle mode activities.Type: GrantFiled: June 16, 2010Date of Patent: October 28, 2014Assignee: Broadcom CorporationInventors: Xiaoxin Qiu, Yuan Liu, Yaxin Cao, Zhijun Gong, Yongqian Wang, Stephen Richards
-
Patent number: 8842552Abstract: Method and system for facilitating testing of multiple time-division-duplex (TDD) data packet signal transceivers. Replicas of a data packet signal are transmitted by a tester to multiple TDD devices under test (DUTs), where the replicated signal is either a null or TDD data packet signal. In one embodiment, replica null data packet signals are transmitted for a predetermined time interval sufficient for the DUTs to synchronize with the tester. In another embodiment, following successful and unsuccessful receptions of responsive signals from respective DUTs indicating successful reception of their respective replica TDD data packet signals and, therefore, synchronization with the tester, corresponding replica TDD data packet signals are provided with data packet signal characteristics causing such replica data packet signals to fail to conform or to conform, respectively, with a predetermined data packet signal standard.Type: GrantFiled: December 17, 2012Date of Patent: September 23, 2014Assignee: Litepoint CorporationInventors: Christian Volf Olgaard, Wing Hung Lee, Guang Shi, Sang Yui Hon
-
Patent number: 8830981Abstract: Example methods and apparatus to poll in wireless communications based on assignments are disclosed. A disclosed example method involves receiving a poll from a network during a first radio block period and identifying a resource for use in sending requested information to the network in response to the poll. The resource occurs during a subsequent radio block period, and the subsequent radio block period is separated from the first radio block period by at least one radio block period not assigned to the mobile station for transmission by the mobile station. The example method also involves transmitting a response to the poll.Type: GrantFiled: July 22, 2010Date of Patent: September 9, 2014Assignee: BlackBerry LimitedInventors: David Philip Hole, Christopher Harris Snow, Ayman Ahmed Abdel-Samad, Dinesh Kumar Arora, Nazih Almalki
-
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
-
Publication number: 20140241377Abstract: A communication device is configured to receive a message that indicates request opportunity parameter(s). Based on the request opportunity parameter(s), the communication device is configured to generate and transmit a transmission request within one of two or more request opportunities (e.g., 2, 3, 4, etc. or generally N request opportunities such that N is a positive integer greater than or equal to 2) indicated by the request opportunity parameter(s). The two or more request opportunities are included within mini-slot(s) that span OFDM sub-carrier(s) of OFDM or OFDMA framing. A given mini-slot spans an OFDM or OFDMA frame, and a mini-slot is divided into any desired number of portions (e.g., 2, 3, 4, etc. or generally N portions) such that each of the request opportunities within that mini-slot occupies a common fraction of the mini-slot (e.g., each occupies ½, ?, ¼, etc. or generally 1/N of the mini-slot).Type: ApplicationFiled: February 25, 2014Publication date: August 28, 2014Applicant: BROADCOM CORPORATIONInventor: Niki R. Pantelias
-
Patent number: 8812007Abstract: A wireless sensor probe for use in environmental monitoring and control includes a separable probe body and sensor mast. The probe body includes a void configured to house the sensor mast including one or more sensor devices for sensing a soil property surrounding the probe body when the probe body is inserted partially into the ground. The probe body includes a probe top part for encapsulating the probe body and the sensor mast. The sensor mast is inserted into the probe body to form the sensor probe. In another embodiment, a wireless sensor probe includes a housing containing one or more sensor devices. The probe further includes a collar situated near a top portion of the housing being used to anchor the housing to the top of the ground and a gasket formed on the outside perimeter of the housing for securing the housing in the ground.Type: GrantFiled: December 9, 2009Date of Patent: August 19, 2014Assignee: Digital Sun, Inc.Inventors: Dale K. Hitt, Kurtis G. Heaton
-
Patent number: 8792415Abstract: The present invention relates to a scheduling apparatus and a method thereof in an HPi system. A scheduling algorithm is applied appropriate to a characteristic of each multimedia service (e.g., real-time service, non real-time service, best-effort service, etc.) and a transmission order of the IP packets transmitted from a network is determined such that a transmit wait queue is generated. Radio resource allocation is performed in accordance with the order of the data items queued in the transmit wait queue, the size of transmittable data is determined such that a PDU is generated. In addition, frame data formed of bursts of PDUs is generated and transmitted to a physical layer. Therefore, a scheduling algorithm can be applied appropriate to characteristics of each multimedia service. In addition, packet scheduling is performed in two steps in order to schedule traffic corresponding to radio frames such that packets can be efficiently processed.Type: GrantFiled: June 27, 2006Date of Patent: July 29, 2014Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute, KT Corporation, SK Telecom Co., Ltd., KTFreetel Co., Ltd., Hanaro Telecom, Inc.Inventors: Ju-Hee Kim, Sook-Jin Lee, Kyung-Soo Kim
-
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
-
Patent number: 8774212Abstract: A system and method for managing network traffic is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a data switch having a controller element to transmit telemetry data representative of bandwidth usage by one or more users of the data switch. At least one higher bandwidth user can have an increased polling frequency based at least in part on a differential in upstream and downstream data transfer rates for the one or more users. Additional embodiments are disclosed.Type: GrantFiled: October 28, 2010Date of Patent: July 8, 2014Assignee: AT&T Intellectual Property I, LPInventors: Stuart L. Blackburn, Raghvendra Savoor, John Van Slyke, Xidong Wu, Baofeng Jiang, Kaiyan Chen, Sun-Uk Park
-
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
-
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
-
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
-
Patent number: 8730889Abstract: A method of transport block retransmission in a wireless communication system employing carrier aggregation is disclosed. A method of retransmitting transport blocks in a base station of a wireless communication system employing carrier aggregation comprises mapping each of a plurality of transport blocks to each of a plurality of component carriers using a first mapping pattern and transmitting the plurality of transport blocks to a mobile station; recognizing that the plurality of transport blocks are not transmitted successfully; and mapping each of the plurality of transport blocks to each of the plurality of component carriers using a second mapping pattern and retransmitting the plurality of transport blocks to the mobile station.Type: GrantFiled: October 14, 2009Date of Patent: May 20, 2014Assignee: LG Electronics Inc.Inventors: Ki Hwan Kim, Jae Hoon Chung, Yeong Hyeon Kwon, Seung Hee Han
-
Patent number: 8730991Abstract: Various techniques are provided to facilitate the identification of devices, such as high performance data communication devices, when such devices are connected over a data communication bus. In one example, high performance devices may identify each other by providing frequency modulated signal bursts which fall within a range of frequencies associated with a data communication standard. Similarly-implemented high performance devices may recognize patterns encoded in the frequency modulations of the signal bursts and thereby identify each other. Advantageously, while providing the frequency modulated signal bursts, the high performance devices may remain compliant with the data communication standard to facilitate communication with other types of devices which may expect to receive communications in accordance with the data communication standard.Type: GrantFiled: January 28, 2009Date of Patent: May 20, 2014Assignee: SMSC Holdings S.A.R.L.Inventors: Christopher Thomas, Yossi Cohen
-
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
-
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
-
Patent number: 8699407Abstract: This invention discloses a method and apparatus for scheduling radio resources among service flows for services supported in a MIMO-OFDM wireless communication system. Preferably a portion of radio resources for allocation is expressed as bandwidth or slots in different units. The method comprises a first stage and a second stage of scheduling. The first stage guarantees supporting minimum data rates for different services. The second stage aims to satisfy a requirement of not exceeding maximum data rates for different services as well as to optimize the spectrum efficiency. Each stage comprises: selecting a primary flow according to prioritization of service flows; allocating a portion of resources for the primary flow; selecting one or more secondary flows if there is resource remaining available, so as to optimize spectrum efficiency when transmitting with the primary flow in the same SDMA region; and allocating a portion of resources to each secondary flow.Type: GrantFiled: June 22, 2012Date of Patent: April 15, 2014Assignee: Hong Kong Applied Science and Technology Research Institute Company LimitedInventor: Di Pang
-
Patent number: 8699509Abstract: A mobile station (MS) of a wireless communications system monitors the paging messages of a serving base station (BS) as well as paging messages of one or more neighboring BSs with sufficient signal strength or signal quality. The MS monitors for paging messages from a set of BSs including the serving BS and the neighboring BSs, during listening intervals. The MS coordinates the listening intervals with the paging intervals of the paging messages. These and other aspects related to monitoring the paging intervals of multiple BSs may help improve paging success rate.Type: GrantFiled: October 29, 2008Date of Patent: April 15, 2014Assignee: QUALCOMM IncorporatedInventors: Tom Chin, Kuo-Chun Lee
-
Patent number: 8692498Abstract: Presented is a roller shade system that includes a flexible shade material having a lower end, a rotatably supported roller tube that windingly receives the shade material, a stepper motor that operably engages the roller tube to rotate the roller tube to move the lower end of the shade material between a first position and a second position, an optical sensor configured for capturing an image frame of the shade material at linear positions along the shade material as the lower end of the flexible shade material moves from the first position to the second position, and a stepper motor controller configured for controlling the frequency of input pulses to the stepper motor to move the lower end of the flexible shade material from the first position to the second position at a substantially constant linear velocity in response to position information obtained from the plurality of captured image frames.Type: GrantFiled: March 18, 2011Date of Patent: April 8, 2014Assignee: Crestron Electronics Inc.Inventors: George Feldstein, Mark LaBosco, Russikesh Kumar
-
Patent number: 8693353Abstract: Systems, devices, and computer readable media for optimizing serial communication networks provide an intelligent network gateway through which network data flows. Systems and devices monitor network requests for data packets supplied by slave computing devices, examine the supplied data packets, and copy the supplied data packets to a memory device. The supplied data packets are delivered to a first requesting network device and when an additional network request for the data packets is made by a second requesting network device the data packets are delivered from the memory device to the second requester in response to the additional network request without interrupting the slave computing device to redundantly supply the data packet. Polling by multiple requester devices for redundant data from slave computing devices is avoided. Communication response times are improved, data caching is provided for devices that have no logging memory, and optimum communication settings can be automatically determined.Type: GrantFiled: December 28, 2009Date of Patent: April 8, 2014Assignee: Schneider Electric USA, Inc.Inventors: Avery D. Long, Timothy Curray
-
Patent number: 8693494Abstract: A system for mobile device poll creation and conductance disclosed. A poll is created using poll creation software on a mobile device, personal computer or a web-based application. A polling server then validates the poll and publishes the poll to one or more mobile devices. The users of the one or mobile devices may then respond to the poll via their mobile device, a personal computer, or a web-based application. The results are sent to the polling server and are processed. The results of the poll are then published to the poll creator and the poll participants.Type: GrantFiled: March 31, 2008Date of Patent: April 8, 2014Assignee: Seven Networks, Inc.Inventor: Trevor Fiatal
-
Patent number: 8687642Abstract: A method and system reduce interference between overlapping first and second wireless LAN cells in a medium. Each cell includes a respective plurality of member stations and there is at least one overlapped station occupying both cells. An inter-cell contention-free period value is assigned to a first access point station in the first cell, associated with an accessing order in the medium for member stations in the first and second cells. The access point transmits a beacon packet containing the inter-cell contention-free period value, which is intercepted at the overlapped station. The overlapped station forwards the inter-cell contention-free period value to member stations in the second cell. A second access point in the second cell can then delay transmissions by member stations in the second cell until after the inter-cell contention-free period expires.Type: GrantFiled: November 21, 2011Date of Patent: April 1, 2014Assignee: AT&T Intellectual Property II, L.P.Inventor: Mathilde Benveniste
-
Patent number: 8681816Abstract: A method and apparatus for indicating a temporary block flow (TBF) to which a piggybacked acknowledgement/non-acknowledgement (PAN) field is addressed. A PAN check sequence (PCS) is created, for example using a cyclic redundancy check (CRC) encoding. The PCS is masked with a temporary flow identity (TFI) assigned to a TBF or a mask generated based on the TFI. A data block including the PAN field and the masked PCS is then processed for transmission. The mask may be generated by converting the TFI using an (M, N) code, M being not greater than the number of bits of the PCS and N being the number of bits of the TFI. With this scheme, a TFI may be transmitted in a PAN field without using explicit bits to identify the TBF.Type: GrantFiled: February 27, 2012Date of Patent: March 25, 2014Assignee: InterDigital Technology CorporationInventors: Marian Rudolf, Behrouz Aghili, Prabhakar R. Chitrapu, Stephen G. Dick, Philip J. Pietrazki, Yan Li
-
Patent number: 8675557Abstract: A method for communication between nodes in a wireless network, in particular in a wireless ad hoc or mesh network, wherein multiple wireless channels with different frequency bands are provided and wherein the nodes are enabled to operate on the different channels is characterized in that each the node has assigned a home channel where it usually resides, wherein a node that leaves its home channel and switches to another of the multiple channels—temporary operating channel—provides information about the temporary operating channel on the node's home channel.Type: GrantFiled: August 21, 2009Date of Patent: March 18, 2014Assignee: NEC Europe Ltd.Inventor: Long Le
-
Patent number: 8671332Abstract: Systems and methods implementing a protocol that provides reliable transport over a point-to-point link characterized by deep and sustained fades. Such a communications link may be a free space optical channel or may be a radio frequency point-to-point channel. Data frames are processed through a circular data buffer that operates in a round robin fashion at a transmission node. The coding and forward error correction processes allow for continued operation in spite of possible signal fades due to atmospheric turbulence or other causes. At a receive node, incoming data is also saved in a circular buffer. A re-acknowledgment list is maintained at the receive node for tracking recently received and decoded data. This allows for a new acknowledgment to be sent in the event that a previously sent acknowledgment failed to reach the transmission node.Type: GrantFiled: April 29, 2010Date of Patent: March 11, 2014Assignee: The Johns Hopkins UniversityInventor: A. Roger Hammons, Jr.
-
Patent number: 8665898Abstract: 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: January 28, 2010Date of Patent: March 4, 2014Assignee: Wi-Lan, Inc.Inventors: Brian Spinar, Kenneth L. Stanwood
-
Patent number: 8649320Abstract: A method of scheduling request (SR) behavior for a UE configured with semi-persistent scheduling in a wireless communication system includes triggering an SR when the UE does not have an uplink resource allocated for a current transmission time interval, and controlling the triggered SR to remain pending and to be repeated until uplink resources are granted for a new transmission.Type: GrantFiled: August 10, 2009Date of Patent: February 11, 2014Assignee: HTC CorporationInventor: Chia-Chun Hsu
-
Patent number: 8638810Abstract: In various embodiments, communication apparatuses and methods for providing robust communications are disclosed. For example, an exemplary apparatus for use in a communication system employing a plurality of different communication channels may include a first database of channel performance information embedded on a machine-readable and writable medium, wherein the first database includes a plurality of records with each record containing information relating to a wireless channel monitored by a Media Access Controller (MAC), input circuitry configured to receive information from a plurality of MACs monitoring their respective wireless channels such that each record of the first database contains channel performance information for a respective wireless channel, and output circuitry configured to provide the channel performance information to a plurality of applications-level executable programs running on one or more computers.Type: GrantFiled: April 25, 2008Date of Patent: January 28, 2014Assignee: QUALCOMM IncorporatedInventor: Dilip Krishnaswamy
-
Patent number: 8630307Abstract: Methods and apparatus for allocating traffic contention resource units in a wireless communications system in which decisions are made in a distributed manner are described. A wireless communications device, corresponding to a link, self allocates resource units for traffic contention. Decisions regarding initially acquiring resources, relinquishing acquired resources, and/or acquiring additional resources for traffic contention are based on detected levels of network congestion and/or detected changes in network congestion. A wireless communications device detects a level of network congestion and determines a number of resource units to acquire for traffic contention based on the detected level of network congestion.Type: GrantFiled: September 13, 2011Date of Patent: January 14, 2014Assignee: QUALCOMM IncorporatedInventors: Xinzhou Wu, Thomas J. Richardson, Junyi Li, Sundar Subramanian, Nilesh Khude
-
Patent number: 8619658Abstract: In a wireless communication system comprising at least one access point (AP) and a plurality of stations (STAs), a method for transmission management of the wireless medium comprises the AP configuring a Multiple Receiver Aggregate Multi-Poll/Power Save Aggregation Descriptor (MMP/PSAD) frame with scheduled Uplink Transmission Time (ULT) information for the plurality of STAs. The AP then transmits the MMP/PSAD frame to the plurality of STAs. Upon successfully receiving and decoding the MMP/PSAD frame, STAs transmit during their scheduled ULT.Type: GrantFiled: September 19, 2006Date of Patent: December 31, 2013Assignee: InterDigital Technology CorporationInventors: Mohammed Sammour, Sudheer A. Grandhi, Robert Lind Olesen
-
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
-
Patent number: 8605801Abstract: In a wireless communication system where different frequency bands are deployed to generate various communication zones, pilot signal set management for a plurality of pilot signals generated from an additional coverage zone is based on identifying a preselected signal set from the plurality of pilot signals and determining whether a predetermined criterion is met.Type: GrantFiled: May 15, 2009Date of Patent: December 10, 2013Assignee: QUALCOMM IncorporatedInventors: Ramin Rezaiifar, Christopher G. Lott, Donna Ghosh, Peter J. Black, Rashid Ahmed A. Attar
-
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
-
Patent number: 8593997Abstract: A full duplex/half duplex mismatch is detected by a full duplex/half duplex mismatch detecting apparatus connected through a network to a host. The loss rate of the transmission of a check messages is compared according to a sequential transmission pattern and the loss rate of the transmission of the check message according to divided transmission patterns by the full duplex/half duplex mismatch detecting apparatus, and if the loss rate of the transmission of the check messages according to the sequential transmission pattern is the larger, a full duplex/half duplex mismatch is determined to be present on the network path.Type: GrantFiled: October 25, 2005Date of Patent: November 26, 2013Assignee: Fujitsu LimitedInventors: Yuji Nomura, Takeshi Yasuie
-
Patent number: 8572451Abstract: A method and apparatus for indicating a temporary block flow (TBF) to which a piggybacked acknowledgement/non-acknowledgement (PAN) field is addressed are disclosed. A sequence may be generated from a temporary flow identity (TFI) to which the PAN field is addressed and masked with a PAN check sequence (PCS). A radio block including a PAN field and a masked PCS is transmitted. The PCS may be masked with one of TFIs which is selected in accordance with a rule pre-agreed. A secondary identifier may indicate a TBF to which the PAN field is addressed. A special value may be used to represent all TBFs assigned and a secondary identifier may indicate a TBF to which the PAN field is addressed. A special value on the PAN field may be used for control purposes for indicating an action affecting a group of receiving stations listening to the radio block.Type: GrantFiled: June 5, 2008Date of Patent: October 29, 2013Assignee: InterDigital Technology CorporationInventors: Behrouz Aghili, Stephen G. Dick, Marian Rudolf, Prabhakar R. Chitrapu
-
Patent number: 8560026Abstract: Disclosed are devices and methods of a communication device including initiating an initial communication via a modem in response to a data pull communication event or a data push communication event and determining by the controller a measured network condition associated with transmitting the initial communication as well as determining by the controller the power consumption of the initial communication based on a measured network condition value processed by monitoring the modem. Methods of a communication device further include comparing the power consumption value with a predetermined power consumption value stored in the memory related to a predetermined acceptable measured network condition value for this type of communication event, and terminating by the controller, the communication when the power consumption value exceeds the predetermined power consumption value based upon the acceptable measured network condition value for this type of communication event.Type: GrantFiled: November 23, 2010Date of Patent: October 15, 2013Assignee: Motorola Mobility LLCInventor: Cyril M De La Cropte De Chanterac
-
Patent number: 8547993Abstract: Methods, apparatuses, and systems are presented for performing asynchronous communications involving using an asynchronous interface to send signals between a source device and a plurality of client devices, the source device and the plurality of client devices being part of a processing unit capable of performing graphics operations, the source device being coupled to the plurality of client devices using the asynchronous interface, wherein the asynchronous interface includes at least one request signal, at least one address signal, at least one acknowledge signal, and at least one data signal, and wherein the asynchronous interface operates in accordance with at least one programmable timing characteristic associated with the source device.Type: GrantFiled: August 10, 2006Date of Patent: October 1, 2013Assignee: NVIDIA CorporationInventors: Lincoln G. Garlick, Richard A. Silkebakken, Prakash G. Apte, Paolo E. Sabella, Samuel H. Duncan, Dennis K. Ma, Sean J. Treichler
-
Patent number: 8542662Abstract: An access point receives a notification (or advertisement) from a device, which lacks a service. The access point adds the service to the notification, and forwards the notification to other devices on the network. Upon receiving from a control point a request to use the added service, the access point provides the service on behalf of the device.Type: GrantFiled: April 24, 2012Date of Patent: September 24, 2013Assignee: Intel CorporationInventors: Francis M. Tharappel, Ajay Garg, Nandakishore R. Kushalnagar
-
Patent number: RE45424Abstract: Methods and systems for reliable neighbor discovery in wireless ad hoc networks are provided herein. In one aspect, embodiments of the present invention provide methods and systems for analyzing the quality of a communication link. In embodiments, several factors affecting link quality may be incorporated in the analysis, and basic and/or complex statistical and/or probabilistic analysis may be used. In another aspect, embodiments of the present invention provide methods and systems for neighbor node discovery that adapt to network and/or node operating conditions and that dynamically maintain a neighbor node set at a given node according to these conditions. In a further aspect, embodiments of the present invention extend the utility of neighbor node discovery beyond the customary role of data routing support into the problem of deploying an ad hoc network by providing a display module for displaying node connectivity information.Type: GrantFiled: April 27, 2012Date of Patent: March 17, 2015Assignee: Social Perspective Mgmt, L.L.C.Inventor: Thomas Bronez