Patents Examined by Awet Haile
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Patent number: 9854579Abstract: An integrated circuit, for example, included in a wireless communication base station, controls a process that includes mapping a first downlink control channel to control channel element(s) (CCE(s)) in a first search space comprised of a first plurality of CCEs, the first downlink control channel including resource assignment information, which indicates a resource allocated to a terminal in a component carrier n (CCn) out of one or more component carrier(s) (CC(s)), and mapping a second downlink control channel to CCE(s) in a second search space comprised of a second plurality of CCE(s), the second downlink control channel including resource assignment information, which indicates a resource allocated to the terminal in a component carrier n+1 (CC+1) out of the CC(s), the first plurality of CCEs and the second plurality of CCEs are consecutive. The process also includes transmitting the first and the second downlink control channels to the terminal.Type: GrantFiled: April 13, 2017Date of Patent: December 26, 2017Assignee: Godo Kaisha IP Bridge 1Inventors: Akihiko Nishio, Seigo Nakao, Daichi Imamura, Masayuki Hoshino
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Patent number: 9800497Abstract: Systems, methods, and computer-readable media for OAM in overlay networks. In response to receiving a packet associated with an OAM operation from a device in an overlay network, the system generates an OAM packet. The system can be coupled with the overlay network and can include a tunnel endpoint interface associated with an underlay address and a virtual interface associated with an overlay address. The overlay address can be an anycast address assigned to the system and another device in the overlay network. Next, the system determines that a destination address associated with the packet is not reachable through the virtual interface, the destination address corresponding to a destination node in the overlay network. The system also determines that the destination address is reachable through the tunnel endpoint interface. The system then provides the underlay address associated with the tunnel endpoint interface as a source address in the OAM packet.Type: GrantFiled: May 27, 2015Date of Patent: October 24, 2017Assignee: CISCO TECHNOLOGY, INC.Inventors: Shyam Kapadia, Liqin Dong, Yibin Yang
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Patent number: 9794004Abstract: Suppression of serving cell transmissions directed to second-served UEs may improve channel estimation of a serving cell or a neighbor cell. This may include using scheduling information for second-served UEs to suppress serving cell signals intended for second-served UEs having overlapping MIMO transmissions. Alternatively, this scheduling information may aid in suppressing a serving cell signal for a second-served UE to improve channel estimation of a neighbor cell. Various embodiments described herein, include implementations and techniques to aid channel estimation, and signal scheduling information to a first-served UE to aid in suppression of serving cell signals for second-served UEs.Type: GrantFiled: September 3, 2014Date of Patent: October 17, 2017Inventors: Taesang Yoo, Tao Luo, Yongbin Wei
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Patent number: 9794903Abstract: Dynamic, untethered array nodes are frequency, phase, and time aligned/synchronized, and used to focus their transmissions of the same data coherently on a target or in the target's direction, using time reversal or directional beamforming. Information for alignment/synchronization may be sent from a master node of the array to other nodes, over non-RF links, such as optical and acoustic links. Some nodes may be connected directly to the master nodes, while other nodes may be connected to the master node through one or more transit nodes. A transit nodes may operate to (1) terminate the link when the alignment/synchronization information is intended for the node, and (2) pass through the alignment/synchronization information to another node without imposing its local clock properties on the passed through alignment/synchronization information. In this way, an end point node may be aligned/synchronized to the master node without a direct link between the two nodes.Type: GrantFiled: September 4, 2014Date of Patent: October 17, 2017Assignee: ZIVA CORP.Inventors: David Smith, Anis Husain, Jeremy Rode, Mark Hsu
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Patent number: 9794802Abstract: A method in a wireless communication terminal includes receiving an aggregated carrier including a first component carrier and a second component carrier, determining a level of interference from a signal received on the first component carrier to a signal on the second component carrier based on a signal characteristic of the first component carrier and a signal characteristic of the second component carrier, and providing signal interference information to a serving base station if the determined interference level satisfies a condition.Type: GrantFiled: July 30, 2013Date of Patent: October 17, 2017Assignee: Google Technology Holdings LLCInventors: Sandeep H. Krishnamurthy, Colin D. Frank
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Patent number: 9780822Abstract: Various embodiments implemented on a mobile communication device (e.g., a multi-SIM-multi-active communication device) mitigate degraded transmit performance typically experienced by a lower-priority subscription during a Tx collision event in which a higher-priority subscription receives a shared Tx resource of the mobile communication device to the exclusion of the lower-priority subscription. Specifically, in various embodiments, a processor of the mobile communication device may determine when an upcoming transmission of the lower-priority subscription will collide with a scheduled transmission of the higher-priority subscription (i.e., may determine when a Tx collision event will occur between the subscriptions) and may implement one or more Tx collision management strategies in response to determining that the lower-priority subscription's upcoming transmission will collide with a transmission of the higher-priority subscription, thus improving the lower-priority subscription's overall performance.Type: GrantFiled: July 24, 2015Date of Patent: October 3, 2017Assignee: QUALCOMM IncorporatedInventors: Deepak Krishnamoorthi, Sitaramanjaneyulu Kanamarlapudi
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Patent number: 9775060Abstract: Provided are a method and apparatus for a UE (user equipment) to provide reference signal feedback in a wireless communication system. The method includes: receiving, from a base station, CSI-RS configuration information for configuring CSI-RS (channel state information reference signal) patterns, the CSI-RS configuration information containing usage information; performing a first measurement for radio resource management on all CSI-RS patterns configured based on the CSI-RS configuration information; and performing a second measurement only on CSI-RS patterns corresponding to the usage information, the second measurement being determined by the usage indicated by the usage information.Type: GrantFiled: October 12, 2012Date of Patent: September 26, 2017Assignee: LG Electronics Inc.Inventors: Ji Won Kang, Jin Young Chun, Ki Tae Kim, Su Nam Kim, Bin Chul Ihm, Sung Ho Park
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Patent number: 9774490Abstract: A system and method for propagating fault information in an Ethernet OAM network having multiple levels of OAM domains. An Alarm Indication and Suppression (AIS) frame is generated by a Maintenance Intermediate Point (MIP) node upon detecting a fault condition in a first OAM domain, which is transmitted to one or more Maintenance End Points (MEPs) of the first OAM domain. Upon receiving the AIS frames, the MEP nodes are operable generate another AIS frame for propagating to an adjacent higher level second OAM domain. Responsive to the AIS frame from the lower level first OAM domain, any alarms caused in the second OAM domain due to the fault condition in the first OAM domain are suppressed.Type: GrantFiled: April 14, 2014Date of Patent: September 26, 2017Assignee: Alcatel LucentInventors: David Elie-Dit-Cosaque, Kamakshi Sridhar, Maarten Petrus Joseph Vissers, Tony van Kerckhove
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Patent number: 9774543Abstract: One embodiment of the present invention provides a system for facilitating synchronization of MAC addresses in a fabric switch. During operation, the system divides a number of media access control (MAC) addresses associated with devices coupled to an interface of the switch. The system then computes a checksum for a respective chunk of MAC addresses. In addition, the system broadcasts MAC address information of the chunk to facilitate MAC address synchronization in a fabric switch of which the switch is a member, and to manage the chunks and their corresponding checksum, thereby correcting an unsynchronized or race condition in the fabric switch.Type: GrantFiled: August 3, 2016Date of Patent: September 26, 2017Assignee: BROCADE COMMUNICATIONS SYSTEMS, INC.Inventor: Vardarajan Venkatesh
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Methods and apparatus for independent basic service set based data paths for neighbor aware networks
Patent number: 9763228Abstract: Methods and apparatus for independent basic service set based data paths for neighbor aware networks are described herein. In some aspects, an apparatus for wireless communication in an independent basic service set is provide. The apparatus comprises a receiver configured to receive a service discovery frame from a device in a neighbor aware network. The apparatus comprises a processor configured to determine a timing for an announcement traffic indication message window, wherein the timing is defined as an offset from a beginning of a discovery window for the neighbor aware network. The apparatus comprises a transmitter configured to transmit an announcement traffic indication message during the announcement traffic indication message window. The service discovery frame comprises an independent basic service set availability attribute defining a duration of the announcement traffic indication message window.Type: GrantFiled: March 24, 2015Date of Patent: September 12, 2017Assignee: QUALCOMM IncorporatedInventors: Santosh Paul Abraham, Alireza Raissinia, George Cherian, Abhishek Pramod Patil, Ashish Kumar Shukla -
Patent number: 9742667Abstract: The present application provides a packet processing method, device and system. A controller sends a first flow entry to a network device. The first flow entry comprises first importance information used for indicating importance of a first flow entry, where the first importance information is used by the network device to determine, according to a second importance information of a second flow entry in the flow table and the first importance information of the first flow entry, whether to add the first flow entry into a flow table of the network device when there is no idle flow entry resource in the flow table.Type: GrantFiled: June 3, 2016Date of Patent: August 22, 2017Assignee: Huawei Technologies Co., Ltd.Inventors: Wanfu Ding, Enhui Liu, Chengyong Lin, Fengkai Li
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Patent number: 9729294Abstract: A communications system in which, in each cell, a common reference signal to wireless terminals of the cell is transmitted at a first timing at a frequency that is based on identification information of the cell, and the communications system includes a wireless base station that transmits the common reference signal at the first timing, and transmits at a second timing that is different from the first timing, a wireless-terminal-specific reference signal to the wireless terminals of the cell of the wireless base station and a control signal to the wireless terminals of the cell of the wireless base station, concurrently at different frequencies; and a wireless terminal that based on the wireless-terminal-specific reference signal transmitted by the wireless base station, demodulates the control signal transmitted by the wireless base station.Type: GrantFiled: February 6, 2015Date of Patent: August 8, 2017Assignee: FUJITSU LIMITEDInventor: Yoshihiro Kawasaki
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Patent number: 9730162Abstract: Methods, systems, and devices are described for using low energy (LE) signaling to indicate to a wireless station (STA), prior to transmission of a beacon, whether the beacon will further indicate that an access point (AP) has data to transmit to the STA. In one aspect, a method may include receiving, using a first radio of a wireless STA using a LE communication protocol, a first signal comprising an indication of a traffic indication map (TIM) of a wireless local area network (WLAN) beacon, and selectively powering up a second radio of the wireless STA to receive the WLAN beacon in response to the indication. In one aspect, the wireless STA may power up the first radio at a predetermined interval prior to a target beacon transmission time (TBTT) of the WLAN beacon.Type: GrantFiled: September 3, 2014Date of Patent: August 8, 2017Assignee: QUALCOMM IncorporatedInventors: Sunit Pujari, Hemant Kumar Sahoo, Imran Ansari
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Patent number: 9722750Abstract: A wireless terminal, includes: an antenna; and, a processor, coupled to the antenna, the processor to receive, through the antenna, a common reference signal transmitted from a base station at a first timing at a frequency which is selected in accordance with identification information of a cell, to receive, through the antenna, a wireless-terminal-specific reference signal and a control signal both of which are concurrently transmitted by the base station at different frequencies, at a second timing that is different from the first timing; and, to demodulate the received control signal, based on the received wireless-terminal-specific reference signal.Type: GrantFiled: December 29, 2015Date of Patent: August 1, 2017Assignee: FUJITSU LIMITEDInventor: Yoshihiro Kawasaki
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Patent number: 9722759Abstract: A radio transceiver and corresponding method include a transmission unit configured to transmit an uplink signal to a base station. A receiving unit is configured to receive a relay signal, which comprises the uplink signal and a downlink signal received from the base station. An extraction unit is configured to extract the downlink signal from the relay signal based on the uplink signal.Type: GrantFiled: January 13, 2014Date of Patent: August 1, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Won-Jae Shin, Kyung Hun Jang
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Patent number: 9715399Abstract: The present technology concerns a mainframe injection component (MIC) for manipulating at least one data packet communicated between at least one emulator and at least one mainframe. A packet processor is configured to receive the at least one data packet, manipulate the at least one received data packet to produce at least one modified data packet, and inject the at least one modified data packet into the communication between the at least one emulator and the at least one mainframe. The packet processor is further configured to retrieve at least one processing instruction from a repository according to at least one pre-defined processing rule and to apply the at least one processing instruction on the at least one received data packet to produce the at least one modified data packet.Type: GrantFiled: January 27, 2010Date of Patent: July 25, 2017Assignee: SOFTWARE AGInventor: Lior Yaffe
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Patent number: 9713180Abstract: Systems and methods are disclosed for efficient signaling between devices. A relay device initiates association with discovery broadcast signals to leaf devices. Each leaf responds with association request signals. After association, the relay periodically sends stay alive signals to the leaf, and the leaf periodically sends link confirmation signals to the relay. If either device fails to send its signal, link breakage is assumed. The leaf device reverts to uplink communication with a base station while searching for another relay. In another embodiment, the leaf foregoes association with a relay, instead forming a device to device (D2D) connection with a relay. A D2D connection is used when the leaf does not expect a link to a relay to be stable enough to justify the association overhead, or when downlink traffic is arriving more frequently than an associated relay is awake. Other aspects, embodiments, and features are also claimed and described.Type: GrantFiled: July 8, 2016Date of Patent: July 18, 2017Inventors: Piyush Gupta, Junyi Li, Saurabha Tavildar
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Patent number: 9699075Abstract: A network includes routing arcs for routing network traffic to a destination. Each arc comprising nodes connected in sequence by reversible links oriented to direct network traffic to first and second edge nodes through which the network traffic exits the arc. The nodes in the arc detect a first failure. In response, the nodes exchange first management frames to reverse links in the arc so that the network traffic in the arc is directed away from the first failure toward the first edge node of the arc through which the network traffic exits the arc. The nodes detect a second failure in the arc that is spaced apart from the first failure. In response, the nodes exchange second management frames to freeze incoming edges of parent arcs to prevent network traffic in the corresponding parent arc from entering the arc.Type: GrantFiled: October 3, 2016Date of Patent: July 4, 2017Assignee: Cisco Technology, Inc.Inventors: Pascal Thubert, Patrice Bellagamba, Dirk Anteunis, Eric Levy-Abegnoli
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Patent number: 9686787Abstract: Presented are methods and apparatus for decoupling transport and control (T&C) functions from a plurality of eNBs and collecting the T&C functions in a centralized entity for managing the T&C functions for a larger pool of eNBs. An enhanced interface and protocol is defined for allowing the new T&C pool entity to communicate with the eNBs over a shared IP based network. The redistributed functionality provides for optimizing both data compression capabilities and security by compressing data earlier in its transmission path and by encrypting data before it is sent to an eNB.Type: GrantFiled: June 27, 2016Date of Patent: June 20, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Adrien Joseph Comeau, David Donald, Larry Murat, Christopher Richards
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Patent number: 9681334Abstract: According to a first aspect there is provided a method of enabling load steering between a 3rd Generation Partnership Project (3GPP) Radio Access Network (RAN) and a Wi-Fi RAN. The method comprises, at a server, generating overlap information associating one or more cells of the 3GPP RAN with one or more Access Points (AP) of the Wi-Fi RAN, wherein a cell of the 3GPP RAN is associated with an AP of the Wi-Fi RAN if it is determined that the cell overlaps with an area covered by the AP. The server then determines an off-load schedule for a cell of the 3GPP RAN, the off-load schedule indicating when an overlapping AP of the Wi-Fi RAN can reject an attempt by a user terminal to attach to the AP of the Wi-Fi RAN, and sends the off-load schedule to the Wi-Fi RAN.Type: GrantFiled: August 15, 2012Date of Patent: June 13, 2017Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Tomas Nylander, Per-Daniel Stalnacke