Patents Examined by Roberta A. Shand
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Patent number: 8780768Abstract: In embodiments, user equipment (UE) is configured to acquire automatic gain control (AGC) of an analog RF front end by maintaining a plurality of M×N AGC loops in which the output of the power detector drives input of a gain state machine after a predetermined delay. Each of the loops corresponds to a different periodic set of tasks of (1/M) subframe in length. In each of the loops, the gain is determined by a power measurement taken ((M×N)+1) tasks ago. A synchronization signal, such as a Primary Synchronization Signal, occurs early in Time Division Duplex (TDD) subframes that follow selected downlink subframes. The periodicity of the selected subframes is N. This allows the UE to converge on proper AGC gain for downlink subframes through a relatively short search, such as a binary search. The UE can then decode the synchronization signal and acquire network timing.Type: GrantFiled: March 22, 2011Date of Patent: July 15, 2014Assignee: QUALCOMM IncorporatedInventors: Raghu N. Challa, Brian Clarke Banister
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Patent number: 8767701Abstract: A “unified” MIMO system that supports multiple operating modes for efficient data transmission is described. Each operating mode is associated with different spatial processing at a transmitting entity. For example, four operating modes may be defined for (1) full-CSI or partial-CSI transmission and (2) with or without steering transmit diversity (STD). An appropriate operating mode may be selected for use based on various factors (e.g., availability of a good channel estimate). With steering transmit diversity, data is spatially spread and transmitted on multiple spatial channels, and a single rate may then be used for all spatial channels used for data transmission. A receiving entity may utilize a minimum mean square error (MMSE) technique for all operating modes. The receiving entity may derive a spatial filter matrix and perform receiver spatial processing in the same manner for all operating modes, albeit with different effective channel response matrices.Type: GrantFiled: August 2, 2009Date of Patent: July 1, 2014Assignee: QUALCOMM IncorporatedInventors: Steven J. Howard, Jay Rodney Walton, Mark S. Wallace
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Patent number: 8767766Abstract: A method and apparatus are described including identifying a channel that a decentralized network is using for communications and identifying a station that is a member of the decentralized network to monitor data transmission activity over the identified channel. Also described are a method and apparatus for a station to transmit data over a communication medium of a decentralized network including monitoring the communication medium, determining if the communication medium is idle, transmitting data if the communication medium is idle and if the station has a data to transmit and adjusting a slot count and a service ring configuration if the medium is busy. Further described are a method and apparatus including monitoring a communication channel used by a decentralized network, determining a number of available idle time slots between two successive frame transmissions initiated by different stations, updating a service ring, adjusting a number of stations and adjusting a slot count.Type: GrantFiled: February 25, 2009Date of Patent: July 1, 2014Assignee: Thomson LicensingInventors: Yong He, Xiaojun Ma, Jun Li, Charles Chunaming Wang
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Patent number: 8750109Abstract: A packet trace is received. Inter-arrival times between the multiple packets in the packet trace are determined. An inter-arrival time in the inter-arrival times that is greater than a threshold is identified. An order number of the inter-arrival time is identified. A determination is made as to whether a size of each of at least a portion of the multiple packets is equal to a maximum segment size. When a determination is made that the size of each of at least a portion of the multiple packets is equal to the maximum segment size, a size of the ICW as a product of the order number and the maximum segment size is returned.Type: GrantFiled: August 17, 2012Date of Patent: June 10, 2014Assignees: AT&T Intellectual Property I, L.P., The Regents of the University of MichiganInventors: Alexandre Gerber, Zhuoqing Mao, Feng Qian, Subhabrata Sen, Oliver Spatscheck, Walter Willinger
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Patent number: 8743737Abstract: A communication apparatus includes an acquisition unit, a determination unit, and a control unit. The acquisition unit acquires capability information on other communication apparatuses in a network. The determination unit determines, based on the capability information acquired by the acquisition unit, whether there is a communication apparatus having a specific function, related to data communication, to be performed after processing to set communication parameters is performed. The control unit perform controls, in response to the determination unit determining that there is a communication apparatus having the specific function, to continue the processing to set the communication parameters, and performs control, in response to the determination unit determining that there is no communication apparatus having the specific function, to terminate the processing to set the communication parameters.Type: GrantFiled: June 26, 2012Date of Patent: June 3, 2014Assignee: Canon Kabushiki KaishaInventor: Tatsuhiko Sakai
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Patent number: 8743779Abstract: Systems and methods for facilitating simultaneous operations are provided. The methods can include monitoring a common channel to evaluate cells or sectors in an active set, wherein monitoring is performed by a user equipment having a single receiver chain configured to receive traffic and idle information. The methods can also include demodulating channels, using the single receiver chain, including demodulating one or more emergency alerts, wherein demodulating is performed for a radio access technology and a protocol stack associated with the radio access technology.Type: GrantFiled: September 7, 2010Date of Patent: June 3, 2014Assignee: QUALCOMM IncorporatedInventor: Francis M. Ngai
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Patent number: 8724465Abstract: A mechanism for zero packet loss with energy efficient Ethernet link transition via driver fast failover is provided. By default, the mechanism uses a primary adapter running at low speed with low energy usage and a secondary adapter that is disabled. This default configuration is used during periods of low link utilization. When system or input/output load is such that high speed is required, then the mechanism enables the secondary adapter to its highest supported link speed. All transmit traffic in progress running over the primary adapter will complete, and upon completion, the driver generates an address resolution request and sends the request over the secondary adapter. After this process completes, the primary adapter transitions to link down and zero packet loss transition completes.Type: GrantFiled: October 28, 2009Date of Patent: May 13, 2014Assignee: International Business Machines CorporationInventors: Omar Cardona, James B. Cunningham
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Patent number: 8718067Abstract: Protocols or methods are presented for encapsulating data from packets of different priorities and pre-emption techniques therefor using (N+M) byte frames for transmission in a communications system. The methods involve selectively suspending encapsulation of low-priority data packets to encapsulate a higher priority pre-empting data packet, and resuming encapsulation all or a portion of remaining data from a suspended low-priority data packet in a frame in which a pre-empting higher priority data packet is completed.Type: GrantFiled: November 24, 2004Date of Patent: May 6, 2014Assignee: Lantiq Deutschland GmbHInventor: Vladimir Oksman
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Patent number: 8717951Abstract: A method of allocating a radio resource in a frequency division duplex (FDD) frame in which a downlink frame and an uplink frame are divided in a frequency domain in a wireless communication system includes allocating a downlink resource region for a first system in the downlink frame, and allocating an uplink resource region for the first system to the uplink frame such that the uplink resource region does not temporally overlap with the downlink resource region for the first system, wherein a resource region except for the downlink resource region for the first system is allocated to a downlink resource region for a second system in the downlink frame, and a resource region except for the uplink resource region for the first system is allocated to an uplink resource region for the second system in the uplink frame.Type: GrantFiled: February 26, 2009Date of Patent: May 6, 2014Assignee: LG Electronics Inc.Inventors: Sung Ho Moon, Minseok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Dong Cheol Kim, Seung Hee Han, Hyun Woo Lee
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Patent number: 8687658Abstract: A data Interface for transferring digital data between a host and a client over a communication path using packet structures linked together to form a communication protocol for communicating a pre-selected set of digital control and presentation data. The signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, with at least one residing in the host device and being coupled to the client through the communications path. The interface provides a cost-effective, low power, bi-directional, high-speed data transfer mechanism over a short-range “serial” type data link, which lends itself to implementation with miniature connectors and thin flexible cables which are especially useful in connecting display elements such as wearable micro-displays to portable computers and wireless communication devices.Type: GrantFiled: November 24, 2004Date of Patent: April 1, 2014Assignee: QUALCOMM IncorporatedInventors: Jon James Anderson, Brian Steele, George Alan Wiley, Shashank Shekhar
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Patent number: 8687490Abstract: In a computer network system based on an open system interconnection model, where the computer network system includes at least a network layer (Layer 3) and an application layer (Layer 7), a system and a method for managing electronic message traffic into and out of the computer network system including defining a communication channel between Layer 3 and Layer 7 for exchanging data directly therebetween for use in enhancing flow of the electronic message traffic.Type: GrantFiled: June 16, 2010Date of Patent: April 1, 2014Assignee: Dell Software Inc.Inventors: Scott T. Brown, Kelly A. Wanser, Paul Trout
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Patent number: 8649309Abstract: An apparatus and method for creating a data path for a broadcasting service in a cellular network is provided. In a method for creating a data path to provide a broadcasting service in a cellular network, a broadcast server transmits a session start request message to an Access Service Network-GateWay (ASN_GW) before transmission of Multicast and Broadcast Service (MBS) data, to request a multicast connection setup. The ASN_GW establishes a multicast connection between the broadcast server and the ASN_GW on the basis of information of the session start request message. The ASN_GW transmits a session start response message to the broadcast server in response to the session start request message, after establishment of the multicast connection between the broadcast server and the ASN_GW. The ASN_GW transmits a path registration request message to at least one base station associated with a broadcast zone, to request MBS data path establishment and air resource reservation.Type: GrantFiled: January 21, 2009Date of Patent: February 11, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Ki-Back Kim, Han-Kyung Lee, Sung-Man Kim, Nae-Hyun Lim
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Patent number: 8638745Abstract: At least some reference symbols dedicated to a particular communication device are transmitted in resource blocks allocated to other devices. This way, reference symbol assignments are not unduly restricted by other constraints placed on the boundary elements of a resource block. According to an embodiment, data and reference signals are transmitted by transmitting a resource block allocated to a first communication device. The resource block includes a plurality of resource elements, each resource element corresponding to a modulation symbol. At least one reference symbol associated with the resource block and dedicated to the first communication device is transmitted in a resource block allocated to a second communication device. On the receive side, the communication device can perform channel estimation based on reference symbols dedicated to the device that are transmitted in resource blocks allocated to the device and in resource block(s) allocated to other communication device(s).Type: GrantFiled: May 15, 2009Date of Patent: January 28, 2014Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Jiann-Ching Guey, Havish Koorapaty
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Patent number: 8638681Abstract: A method, an apparatus, and a computer program product are provided in which a signal is received on a resource, a signal quality of the signal is determined, a signal energy of the signal is determined, and the resource is jammed based on the signal quality and the signal energy by transmitting a signal on the resource.Type: GrantFiled: September 3, 2010Date of Patent: January 28, 2014Assignee: QUALCOMM IncorporatedInventors: Thomas Richardson, Shailesh Patil, Xinzhou Wu, Junyi Li
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Patent number: 8625566Abstract: Interference between wireless devices communicating in close proximity to each other can result in performance degradation. Although the wireless devices may exchange information to schedule their communications, in some instances, a first wireless device may not notify the second wireless device before initiating a transmission. In addition to interference, components of the second wireless device may be damaged. Functionality can be implemented on the second wireless device to detect transmissions in the first wireless device and accordingly suspend communications of the second wireless device. This can help mitigate interference between the first and second wireless devices and prevent component damage of the second wireless device.Type: GrantFiled: December 22, 2009Date of Patent: January 7, 2014Assignee: QUALCOMM IncorporatedInventors: Paul J. Husted, Olaf Hirsch, MeeLan Lee
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Patent number: 8611367Abstract: A method and apparatus for allocating time slots in a baseband EPCN system is provided. The method includes: obtaining a period type of a current period; and determining a proportion between uplink time slots and downlink time slots for the current period according to the period type. According to present invention, different proportions between uplink time slots and downlink time slots may be respectively applied to different periods such as a registration period and a communication period in the baseband EPCN system. Thus, the register time of a new CNU in the registration period is shortened and the requirement for high downlink bandwidth for normal communications in the communication period is guaranteed at the same time.Type: GrantFiled: May 26, 2009Date of Patent: December 17, 2013Assignee: Hangzhou H3C Technologies Co., Ltd.Inventor: Yang Yu
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Patent number: 8605755Abstract: Methods, systems, and devices are disclosed for conserving bandwidth. If a presence of a multimedia device is detected, then a stream of data is delivered to the multimedia device. If the presence of the multimedia device is not detected, then the stream of data is degraded to conserve bandwidth.Type: GrantFiled: November 14, 2012Date of Patent: December 10, 2013Assignee: AT&T Intellectual Property I, L.P.Inventors: James C. Bedingfield, Henry Kafka, Eric Small, Daniel Baeza
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Patent number: 8593980Abstract: A feedback generation method for uplink Transmit Power Control (TPC) in a mobile communication system is provided. A feedback generation system for uplink TPC includes an uplink information receiver to receive uplink information from a terminal, to measure a Signal-to-Interference Noise Ratio (SINR) value with respect to the received uplink information, and to measure a movement speed of the terminal, a transmission power adjustment value setting unit to set a transmission power adjustment value based on the movement speed of the terminal; an adjusted SINR calculator to calculate an adjusted SINR value, based on an expected SINR value and the measured SINR value; and a feedback information regenerator to regenerate feedback information based on the transmission power adjustment value and the adjusted SINR value, and to transmit the regenerated feedback information to the terminal.Type: GrantFiled: September 1, 2010Date of Patent: November 26, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Jung Sook Bae, Hyungu Hwang, Daeho Kim, Yeong Jin Kim
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Patent number: 8594135Abstract: The subject matter disclosed herein provides methods and apparatus, including computer program products, for detecting a preamble to enable acquisition of a downlink. In one aspect, there is provided a method. The method may include receiving a plurality of symbols. From an autocorrelation of the received symbols, a guard interval may be detected. The guard interval may represent a receive/transmit transition gap (RTG). A metric may be used to verify whether at least one symbol positioned after the detected guard interval is a preamble. Related systems, apparatus, methods, and/or articles are also described.Type: GrantFiled: June 14, 2011Date of Patent: November 26, 2013Assignee: Wi-Lan, Inc.Inventors: Ron Porat, Yu Wen, Peter J. Graumann, Srikanth Gummadi
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Patent number: 8594028Abstract: An apparatus and method for assigning subchannel(s) for communication between frequency agile mobile station(s) and a frequency agile base station. A received power level may be identified for each subcarrier in a set of subcarriers available for data transmission. A minimum power level needed to establish communications may be allocated. A detection threshold set to avoid interference with other devices currently transmitting on the set of subcarriers may be determined using the minimum uplink power level. A subset of subcarriers not already assigned may be selected where each subcarrier in the subset of subcarriers has a received power level that is less than the detection threshold. A subchannel that satisfies a bandwidth requirement may be formed where the subchannel consists of selected subcarriers in the set of subcarriers available for data transmission between the frequency agile mobile station(s) and the frequency agile base station.Type: GrantFiled: June 1, 2009Date of Patent: November 26, 2013Assignee: George Mason Intellectual Properties, Inc.Inventor: Brian L. Mark