Patents Examined by Hardikkumar Patel
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Patent number: 9231984Abstract: A system for hair pinning-time division multiplexing (TDM) calls has a gateway positioned between a non-TDM network and communication equipment coupled to the gateway via a plurality of TDM lines. The gateway has a plurality of signal processing elements configured to encapsulate the TDM call data into a plurality of packets utilizing a protocol suitable for transmission through the network, and each signal processing element has its own time domain such that the signal processing elements operate asynchronously. The gateway also has a central processing element configured to forward the packets to the network via the network protocol. The central processing element is further configured to identify packets which are mapped to channels of TDM lines coupled to the gateway and to forward the packets to the appropriate signal processing element for transmission through the appropriate TDM channel. Accordingly, hair pinning across asynchronous time domains is achieved within the gateway.Type: GrantFiled: June 22, 2012Date of Patent: January 5, 2016Assignee: ADTRAN, Inc.Inventors: Scott William Dendy, Haibiao Zheng, Patrick Andrew Price
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Patent number: 9225849Abstract: Methods, systems, and computer readable media for steering a subscriber between access networks are disclosed. According to one aspect, a method for steering a subscriber between access networks includes, at a first policy and charging rules function (PCRF) that serves a first access network, identifying a subscriber of the first access network as a candidate for steering to a second access network that is served by a second PCRF, querying the second PCRF to determine whether the candidate subscriber is allowed access to the second access network, and, upon a determination that the candidate subscriber is allowed access to the second access network, steering the candidate subscriber to the second access network.Type: GrantFiled: May 7, 2012Date of Patent: December 29, 2015Assignee: TEKELEC, INC.Inventors: Kenneth Charles Jackson, Uri Baniel
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Patent number: 9184810Abstract: A method is provided for wirelessly transmitting from a transmitter to one or more receivers within a multi-user (MU) multiple-input and multiple-output (MIMO) communication system. A number of concurrent (spatial) streams are dynamically allocated in a MU-MIMO transmission to each of a plurality of served receivers to maximize total data transmitted on each transmission. Streams are allocated according to a corresponding transmission queue length for each receiver and the number of receive antennas used by each of the served receivers. A transmission timer is started upon sending the transmission. A random backoff counter is also started upon one of either: (a) expiration of the transmission timer or (b) receipt of data at a transmission queue. A new transmission is sent upon expiration of the random backoff counter if the transmission timer has expired. Otherwise, the random backoff counter is restarted one or more times until the transmission timer has expired.Type: GrantFiled: May 7, 2012Date of Patent: November 10, 2015Assignee: QUALCOMM IncorporatedInventors: Zhi Quan, Simone Merlin, Santosh Paul Abraham, Sameer Vermani, Hemanth Sampath
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Patent number: 9144076Abstract: A method for user pairing and resource allocation, includes performing a multiuser multi-input-multi-output (MU-MIMO) user pairing process to maximize an objective metric without common rank restriction; performing a rank balancing process to determine a uniform transmission user rank along all allocated resource blocks for each user; and with the uniform transmission user rank fixed for all the users, determining optimal user pairing and allocation for each of the resource blocks for each user.Type: GrantFiled: September 18, 2012Date of Patent: September 22, 2015Assignee: NEC Laboratories America, Inc.Inventors: Guosen Yue, Narayan Prasad, Sampath Rangarajan
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Patent number: 9131457Abstract: A mobile station for use in a wireless network that operates according to the Long-Term Evolution Advanced (LTE-A) standard is operable to transmit an aperiodic sounding reference signal (SRS) to a base station in response to a triggering grant received from the base station. The bandwidth on which the mobile station transmits the aperiodic SRS depends on a type of the triggering grant. The type of the triggering grant is one of a downlink grant, an uplink multiple-input, multiple-output (MIMO) grant, and an uplink single-input, multiple-output (SIMO) grant.Type: GrantFiled: August 8, 2011Date of Patent: September 8, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young-Han Nam, Jianzhong Zhang
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Patent number: 9118509Abstract: A gateway device is provided. The gateway device for relaying communication between an automotive network communication device and an industrial field bus communication device includes: a Controller Area Network (CAN) input unit for receiving a CAN input data frame from an external; and a conversion unit for converting the received CAN input data frame into a Modbus output data frame according to a predetermined method.Type: GrantFiled: June 22, 2012Date of Patent: August 25, 2015Assignee: LSIS Co., Ltd.Inventor: Sung Jin Jang
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Patent number: 9118577Abstract: An apparatus comprising a processor configured to send a first notification message to a first label switch router (LSR) to discover the upstream multipoint Label Distribution Protocol (mLDP) LSR, wherein the apparatus is configured to couple to the first LSR, and wherein the first LSR is not an mLDP LSR, receive a second notification message from the upstream mLDP node, and in response to receiving the second notification message, establish an mLDP Label Switch Path (LSP) to the upstream mLDP node via the first LSR.Type: GrantFiled: May 7, 2012Date of Patent: August 25, 2015Assignee: Futurewei Technologies, Inc.Inventors: Ying Chen, Qianglin Quintin Zhao
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Patent number: 9113311Abstract: A user device may receive a portion of multicast content and may obtain transmission information associated with the portion of the multicast content. The transmission information may identify parameters or radio conditions under which the portion of the multicast content is being received by the user device. The user device may provide, to a server device, the transmission information, and may receive content that remedies a condition, associated with the portion of the multicast content. The condition may be detected, by the server device, based on the transmission information.Type: GrantFiled: May 9, 2012Date of Patent: August 18, 2015Assignee: Verizon Patent and Licensing Inc.Inventors: Lalit R. Kotecha, Sergio Aguirre
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Patent number: 9071992Abstract: Certain aspects of the present disclosure provide techniques for signaling extended sizes for Medium Access Control (MAC) Protocol Data Unit (MPDU), Aggregated MPDU (A-MPDU) and Aggregated MAC Service Data Unit (A-MSDU) frame formats. A first technique proposes modifications to the current specifications of the IEEE 802.11n standard in order to allow for longer MPDUs in an A-MPDU. This technique reuses the IEEE 802.11n signaling format and utilizes reserved bits to convey the new information. The second technique proposes a new signaling mechanism to convey the extended sizes for the MPDU, A-MPDU and the A-MSDU through a very high throughput (VHT) capability element.Type: GrantFiled: August 9, 2011Date of Patent: June 30, 2015Assignee: QUALCOMM IncorporatedInventors: Simone Merlin, Maarten Menzo Wentink, Santosh Paul Abraham
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Patent number: 9055471Abstract: The present invention provides a data transmission method, apparatus and system, which relate to the field of the wireless network technology. The data transmission method provided in the embodiment of the present invention includes: acquiring a downlink data packet sent to a terminal, in which the downlink data packet does not have a high layer protocol stack header; sending the downlink data packet to the terminal through an air interface; Through the present invention, the data amount in the air interface transmission is reduced to a great extent, the efficiency of air interface transmission is substantially enhanced, and the air interface resource is saved, thereby facilitating the enrichment and development of wireless services and satisfying the demands of users. The present invention is applicable to a scenario of air interface transmission in a wireless network.Type: GrantFiled: May 7, 2012Date of Patent: June 9, 2015Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Lei Lu, Wenliang Liang, Jinfang Zhang
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Patent number: 9055024Abstract: A communication system may include a first network connected to lower-layer equipment, a second network connected to a higher-layer application, a gateway device connected to the first network and the second network, and a tunnel device connected to the first network and the second network, the tunnel device bypassing the gateway device.Type: GrantFiled: May 9, 2012Date of Patent: June 9, 2015Assignee: YOKOGAWA ELECTRIC CORPORATIONInventor: Masahito Endou
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Patent number: 9014213Abstract: Under a wireless communication environment in which nodes sharing a time reference communicate information with a frame having a predetermined structure, when a node that has failed to acquire synchronization, a protocol in which neighboring nodes relays synchronization to the synchronization acquisition failed node by using a preamble defined in the frame is provided.Type: GrantFiled: September 28, 2011Date of Patent: April 21, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: Choongil Yeh, Dong Hyun Ahn
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Patent number: 9007898Abstract: The present invention pertains to the allocation of bandwidth on a global large scale network. Systems and methods are provided to base bandwidth allocation on the predicted bandwidth demands of the network users. In allocating bandwidth, each user is assigned a user weight value, and is to be allocated bandwidth in proportion to that value. In addition, the bandwidth allocation is enforced so as to ensure that bandwidth allocation policies are maintained.Type: GrantFiled: February 1, 2011Date of Patent: April 14, 2015Assignee: Google Inc.Inventors: Sushant Jain, Anand Raghuraman, Alok Kumar, Uday Naik, Aspi Siganporia
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Patent number: 9001729Abstract: A transceiver including, a codec, microcontroller, and radio. The codec including an analog to digital converter for receiving a first audio program and converting it to a first digital signal; a digital to analog converter for receiving a second digital audio signal and converting it to a second audio program; and, a control function for managing characteristics of the codec. The microcontroller is in electrical communication with the codec: for receiving the first digital audio signal from the codec and packetizing it into a first packet for transmission over a TCP/IP network; for receiving a second packet from network and converting it into the second digital audio signal and sending it to the codec; and for receiving control signals from the network. The radio is in electrical communication with the microcontroller for connection to the network to transmit the first packet to the network and receive the second packet from the network.Type: GrantFiled: September 1, 2010Date of Patent: April 7, 2015Assignee: LP Partners, Inc.Inventors: Fred H. Holmes, Kevin C. Baxter
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Patent number: 8988985Abstract: IP addresses are efficiently assigned and advertised across the boundary of two network domains. The two network domains include an access network that implements MPLS-TP and a core network that implements IP, MPLS, or a combination of both. A primary BN at the domain boundary receives an assignment of an IP prefix for a VPN that connects a set of CEs to one or more SNs. The IP prefix represents a pool of IP addresses. The primary BN assigns only one IP address to both itself and a standby BN for the VPN to minimize the use of assigned IP addresses. The primary BN assigns the other IP addresses to the CEs in the VPN. The primary BN then advertises the IP prefix into the core network to enable routing of network data traffic across the network domain boundary.Type: GrantFiled: June 22, 2012Date of Patent: March 24, 2015Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Sriganesh Kini, Hector Avalos
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Patent number: 8958361Abstract: A method for operating a communications controller includes defining a positive integer quantity of resource element groups from a resource block with a positive integer number N resource elements in each resource element group, the resource block having a total number of resource elements, the total number of resource elements consisting of available resource elements and reserved resource elements. The method also includes assigning a plurality of available resource elements to fill in each of the positive integer quantity of resource element groups with N available resource elements in each resource element group, and blocking any unassigned available resource elements from being used in a resource element group. The method further includes interleaving a plurality of control messages onto the positive integer quantity of resource element groups, and transmitting the positive integer quantity of resource element groups.Type: GrantFiled: November 15, 2011Date of Patent: February 17, 2015Assignee: Futurewei Technologies, Inc.Inventors: David Jean-Marie Mazzarese, Zhongfeng Li, Philippe Sartori
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Patent number: 8948061Abstract: A method (250) of intercepting a VOIP communication is disclosed. The method (250) includes: detecting (260) whether a subscriber-caller to be monitored goes off-hook; intercepting (270) the subscriber-caller when off-hook, if lawful intercept is authorized; and sending (280) substantially all communications between the subscriber-caller and a subscriber-callee, to a subscriber-agent. Advantageously, this can provide an efficient, useful, repeatable and scalable way to intercept VOIP communications.Type: GrantFiled: August 9, 2011Date of Patent: February 3, 2015Assignee: Google Technology Holdings LLCInventor: Sriram Sridhar
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Patent number: 8948138Abstract: A compression/decompression method for backhaul communication of a complex-valued radio signal between base stations and the network processing unit, such as a Central Processor of a Coordinated MultiPoint (CoMP) system, significantly reduces backhaul bandwidth. The spatial and temporal correlations of the wireless IQ signal are exploited in order to remove redundancy and substantially reduce signal bandwidth. Feature component signals of significance are extracted through linear transformation to form the radio signal, and are individually quantized, possibly at different bit rates in accordance with their relative importance. The transformation can either be pre-determined or computed in real-time based on the spatial and temporal statistics of the radio signal. In the latter case, the transformation matrix or matrices are also sent over the backhaul in order to allow the radio signal to be reconstructed at the receiving end. Different methods of generating the transformation matrices are proposed.Type: GrantFiled: March 23, 2011Date of Patent: February 3, 2015Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Dennis Hui, Jung-Fu Cheng, Jiann-Ching Guey, Ali S. Khayrallah, Shing-Wa Wong
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Patent number: 8942119Abstract: Active wireless devices in communication with an access node of a wireless communication system are detected and prioritized, and a group of the active wireless devices is selected. Data is provided to each selected wireless device, a burstiness metric is received based on the provided data, and a burstiness profile of the wireless communication system is determined.Type: GrantFiled: November 15, 2011Date of Patent: January 27, 2015Assignee: Sprint Spectrum L.P.Inventors: Daniel Vivanco, Yu Zhou, Kyounghwan Lee
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Patent number: 8929343Abstract: A method for determining a channel quality index in an OFDM receiver is disclosed. The method comprises receiving signals comprising reference signals from a serving cell and reference signals from neighboring cells; determining signal power of the reference signals from the serving cell and signal power of the reference signals from detected neighboring cells; and determining carrier-to-interference ratio to be the ratio between the signal power of the reference signals from the serving cell and the signal power of the reference signals from the detected neighboring cells. Carrier-to-interference ratio is used for adapting physical layer properties and/or for deciding on handover. A computer program and apparatuses for implementing the method are also disclosed.Type: GrantFiled: January 19, 2009Date of Patent: January 6, 2015Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Bengt Lindoff, Johan Nilsson