Patents Examined by Anh-Vu Ly
  • Patent number: 9572145
    Abstract: The present disclosure provides coordination of assignments for the physical downlink control channel (PDCCH) in a multi-sector cell based on reuse of CCE resources to user equipment (UE) in different sectors that are well isolated from each other. For non-isolated UEs the CCE resources are either repeated in all sectors for better reception performance, or transmitted in one sector while the corresponding CCEs in the other sectors are reserved. In order to achieve coordinated PDCCH assignment there is provided methods for coordinated PDCCH transmission, a system comprising transmission points which are associated with a common physical cell identity and which are controlled by a common network node. There is also provided a corresponding network node and computer readable media comprising computer program code.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: February 14, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Anders Johansson, Jawad Manssour
  • Patent number: 9571395
    Abstract: The invention describes the design of an interconnect element in a programmable network processor/system on-chip having multiple packet processing engines. The on-chip interconnection network for a large number of processing engines on a system can be built from an array of the proposed interconnect elements. Each interconnect element also includes local network lookup tables which allows its attached processing engines to perform lookups locally. These local lookups are much faster than the lookups to a remote search engine, which is shared by all processing engines in the entire system. Local lookup tables in each interconnect element are built from a pool of memory tiles. Each lookup table can be shared by multiple processing engines attached to the interconnect element; and each of these processing engines can perform lookups on different lookup tables in run-time.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: February 14, 2017
    Assignee: CAVIUM, INC.
    Inventors: Anh Tran, Gerald Schmidt
  • Patent number: 9572182
    Abstract: The present invention relates to methods and apparatuses (radio base station and UE) for enabling a UE to perform a contention-based random access. According to embodiments of the present invention, a non-dedicated random access preamble identifier is determined by a radio base station and the determined preamble is transmitted in a message to the UE which selects a non-dedicated random access preamble based on the received preamble identifier and performs a contention-based random access using the selected preamble.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: February 14, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Michael Meyer, Magnus Stattin
  • Patent number: 9572073
    Abstract: In a mobile communication system capable of switching between a first communication state and a second communication state, in a case of a first communication state, a VoIP media signal is exchanged between a mobile station UE #1 and a mobile station UE #2 via an LTE radio access system and a node S-GW, a VoIP control signal is exchanged via the LTE radio access system, the node S-GW, and IMS, and in a case of a second communication state, a circuit-switched signal is exchanged between the mobile station UE #1 and an enhanced MSC/MGW via a 2G/3G radio access system, the VoIP media signal is exchanged between the enhanced MSC/MGW and the mobile station UE #2 via the node S-GW, and the VoIP control signal is exchanged between the enhanced MSC/MGW and the mobile station UE #2 via the node S-GW and the IMS.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: February 14, 2017
    Assignee: NEC Corporation
    Inventors: Katsutoshi Nishida, Takashi Koshimizu, Toshiyuki Tamura
  • Patent number: 9564987
    Abstract: The embodiments described herein provide a method and system for improve link adoption performance in wireless networks. The method for modifying the MCS index for transmission using a computed offset is provided. The offset is calculated based on HARQ feedback of transmissions. A transition probability matrix with plurality of MCS indices is used for selecting the MCS index for transmission based on the highest probability of transition. A pattern sequence of MCS indices is formed and the presence of the pattern is determined in the history of the HARQ transmissions. The frequency of the pattern presence is also determined and the MCS index is selected for the HARQ transmissions. A frequency database of MCS indices is built using source encoding techniques. The transition probabilities that are estimated from the frequency database along with a cost function associated with each MCS index will be used to compute next MCS index.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: February 7, 2017
    Assignee: CENTRE OF EXCELLENCE IN WIRELESS TECHNOLOGY
    Inventors: Sheetal Kalyani, Narendran Krishnan, Saishankar Katri Pulliyakode
  • Patent number: 9559959
    Abstract: A control apparatus includes a communication device controller that acts on a set of flow entries retained by one communication device of a group of communication devices(s) to control the group of the communication devices(s), and a flow statistics information management unit that gathers and manages the flow statistics information collected by the communication device per flow entry. On occurrence of a new flow, the communication device controller finds an estimated lifetime of the new flow based on the flow statistics information, and sets a flow entry on the communication device(s) on a path of the new flow. The flow entry has set an aging time consistent with the estimated lifetime.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: January 31, 2017
    Assignee: NEC CORPORATION
    Inventor: Koji Ehara
  • Patent number: 9560591
    Abstract: A method for saving energy for a wireless sensor network is provided, comprising: introducing a high energy device; defining a sensor node within a coverage of the high energy device as a source node or a forwarding node by the high energy device based on a routing relationship; sending sensed data to the high energy device by the source node at any time; and selecting a forwarding node at a working time to forward the data by the high energy device while making the other forwarding nodes at a dormancy time.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: January 31, 2017
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Ke Xu, Yi Qu, Wenlong Chen, Youjian Zhao
  • Patent number: 9560597
    Abstract: A method and apparatus are disclosed for transmitting battery status information within a Wi-Fi beacon from an access point. In some embodiments, a battery charge information element comprising battery status information may be included within a Wi-Fi beacon. In some other embodiments, the battery charge information element may be transmitted as part of a probe and response protocol. A station, in response to receiving the battery charge information element, may display a message to the user, search for another Wi-Fi network, or search for another network through a different network interface.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: January 31, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Ajay Kumar Gaja, Rahul Jammula, Ankit Verma
  • Patent number: 9553700
    Abstract: A control channel of a communication method and an apparatus includes at least one timeslot, and the method includes: obtaining, according to a first data symbol sequence to be transmitted in a timeslot and coefficients a(i) and d(i), a second data symbol sequence and a third data symbol sequence, where, in a(i)+d(i), at least one pair of a(u)+d(u) and a(v)+d(v) have moduli unequal to each other; and using the same extension sequence [w(0), w(1), . . . , w(N?1)] to process the second data symbol sequence and the third data symbol sequence, mapping the processed data respectively onto the same time-frequency resources corresponding to a first antenna array and a second antenna array, and transmitting the data, where i, u, and v are integers, 0?i?M?1, and u?v.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: January 24, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Xiaofeng Chen
  • Patent number: 9554305
    Abstract: Embodiments of User Equipment (UE) and methods to support reception of content for use by an application supported by a Port Control Protocol (PCP) client are disclosed herein. The UE may receive, from a PCP server, a first portion of video content for use by the application during a first time period. The UE may send a PCP update message that includes one or more mobility status parameters. The UE may receive a second portion of the video content for use by the application during a second time period. The first and second portions of the video content may be received from a first and a second mobility anchor, which may operate as relays for the PCP server. The second mobility anchor may be determined based on a referred IP prefix included in the PCP date update message.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: January 24, 2017
    Assignee: Intel IP Corporation
    Inventors: Hassnaa Moustafa, Danny Moses, Jeffery R. Foerster, Muthaiah Venkatachalam, Vallabhajosyula S. Somayazulu, Wu-Chi Feng, Meghashree Dattatri Kedalagudde, Kathiravetpillai Sivanesan, Rath Vannithamby, Candy Yiu
  • Patent number: 9549433
    Abstract: A method for releasing a LIPA connection is provided, which includes that a MME executes a LIPA connection releasing check according to received LIPA connection releasing auxiliary information, and judges whether to release a LIPA connection of UE; or, a wireless-side network element executes a LIPA connection releasing check according to received LIPA connection releasing auxiliary information, and judges whether to release the LIPA connection of the UE. A device for releasing a LIPA connection, an MME and a wireless-side network element are also provided. According to the technical solutions of the present disclosure, under the condition that a mobile relay supports LIPA, continuity of the LIPA connection of the UE in an Mobile Relay Node (MRN) handover process is ensured, continuity of a LIPA service of the UE is further ensured, and the quality of service for a user and a user experience are improved.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: January 17, 2017
    Assignee: ZTE Corporation
    Inventors: Ying Huang, Shuang Liang, Feng Xie
  • Patent number: 9544821
    Abstract: A mobile communication system and method that includes a radio access system employing a first communication scheme supporting packet-switched communication and a radio access system employing a second communication scheme supporting both circuit-switched communication and the packet-switched communication. The mobile communication system is configured to switch between a first communication state and a second communication state realizing single radio voice call continuity (SRVCC). The first communication state is when a first mobile station visits the radio access system employing the first communication scheme, and performs voice communication with a second mobile station and packet communication by using packet-switched system.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: January 10, 2017
    Assignee: NEC Corporation
    Inventors: Katsutoshi Nishida, Takashi Koshimizu, Toshiyuki Tamura
  • Patent number: 9544709
    Abstract: Embodiments of the present disclosure describe techniques and configurations for transmitting small data payloads in a wireless communication network. An apparatus may include non-access stratum (NAS) circuitry configured to receive a trigger to send a data payload to a wireless communication network, the data payload having a size that is less than a preconfigured threshold, and generate a NAS message including the data payload and access stratum (AS) circuitry coupled with the NAS circuitry and configured to transmit the NAS message including the data payload to a node comprising a Mobility Management Entity (MME) or a Serving GPRS (General Packet Radio Service) Support Node (SGSN). Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: January 10, 2017
    Assignee: Intel Corporation
    Inventors: Puneet K. Jain, Meghashree Dattatri Kedalagudde, Muthaiah Venkatachalam
  • Patent number: 9544882
    Abstract: Provided are a method and apparatus for transmitting channel status information (CSI) of a user equipment (UE) in a carrier aggregation system. The method includes: receiving an uplink grant including a CSI request field from a base station (BS); and transmitting aperiodic CSI for a first serving cell, a first serving cell set or a second serving cell set according to a bit value of the CSI request field to the BS via the first serving cell.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: January 10, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Dong Youn Seo, Min Gyu Kim, Suck Chel Yang, Joon Kui Ahn
  • Patent number: 9538521
    Abstract: Methods and apparatuses for transmitting and receiving signaling, by a User Equipment (UE) with reduced processing capabilities, to conserve power are provided. A method for transmitting from a network a Physical Downlink Shared CHannel (PDSCH) to a first User Equipment (UE) from a first class of UEs or to a second UE from a second class of UEs, includes transmitting a PDSCH to the first UE using a first bandwidth unit; and transmitting a PDSCH to the second UE using a second bandwidth unit, wherein the second bandwidth unit is smaller than the first bandwidth unit.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: January 3, 2017
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Aris Papasakellariou, Hyoung-Ju Ji, Young-Bum Kim
  • Patent number: 9537761
    Abstract: According to one embodiment, a method for allocating Internet Protocol (IP) addresses includes receiving, while serving as an active inter-chassis redundancy (ICR) device, a plurality of IP address requests from the third network device for the plurality of client devices. The method further includes responsive to determining a second network device is also serving as the active ICR device, allocating to a client device an IP address selected from a first portion of the commonly shared plurality of IP addresses and not a second portion, wherein the first portion is allocatable only by the first network device while the first network device and the second network device are both serving as active ICR network devices in the ICR system, and wherein the second portion is allocatable only by the second network device while the first and second network devices are both serving as active ICR devices.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: January 3, 2017
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Namrata Limaye, Juan Lu
  • Patent number: 9537773
    Abstract: The ensuring of predictable and quantifiable networking performance. Embodiments of the invention combine a congestion free network core with a hypervisor based (i.e., edge-based) throttling design to help insure quantitative and invariable subscription bandwidth rates. A lightweight shim layer in a hypervisor can adaptively throttle the rate of VM-to-VM traffic flow. A receiving hypervisor can detect congestion and communicate back to sending hypervisors that rates are to be regulated. In response, sending hypervisors can reduce transmission rate to mitigate congestion at the receiving hypervisor. In some embodiments, the principles are extended to any message processors communicating over a congestion free network.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: January 3, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Changhoon Kim, Albert G. Greenberg, Alireza Dabagh, Yousef A. Khalidi, Deepak Bansal, Srikanth Kandula
  • Patent number: 9532378
    Abstract: A method of moving a receiving window in a wireless mobile communication system, wherein the AM RLC of the transmitting side sends information of the last discarded SDU regardless of continuity of the discarded SDUs. The AM RLC of the receiving side checks whether all SDUs from the start point of the receiving window up to the last discarded SDU are successfully received, delivers the SDUs that are successfully received to an upper layer, and discard only those SDUs that are not successfully received.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: December 27, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Young Dae Lee, Seung June Yi, So Young Lee
  • Patent number: 9521067
    Abstract: Known intra-domain routing methods (e.g., OSPF and IS-IS) are link-state routing protocols with hop-by-hop forwarding that sacrifice optimal traffic engineering for ease of implementation and management. Known optimal traffic engineering procedures are either not link-state methods or require source routing—characteristics that make them difficult to implement. Certain embodiments of the present invention include a fully distributed, adaptive, link-state routing protocol with hop-by-hop forwarding configured to achieve optimal traffic engineering. Such embodiments facilitate significant performance improvements relative to known intra-domain routing methods and decrease network infrastructure requirements.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: December 13, 2016
    Assignee: Cornell University
    Inventors: Nithin Michael, Ao Tang
  • Patent number: 9515930
    Abstract: At a physical device in a network configured to host a virtual switch and one or more virtual machines, a packet is received at the virtual switch from a source virtual machine that is directly attached to that virtual switch. A destination Media Access Control (MAC) address is identified from the packet indicating a destination virtual machine for the packet. In response to determining that the destination MAC address of the packet is not present in a database of MAC addresses accessible by the virtual switch, the destination MAC address of the packet is replaced with a shared MAC address associated with a plurality of physical switches in the network.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: December 6, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Dileep K. Devireddy, Shyam Kapadia, Nilesh Shah