Abstract: Embodiments of the present disclosure describe techniques and configurations for handling a wait time in a wireless communication network when the network is determined to be congested. An apparatus may include computer-readable media having instructions and one or more processors coupled with the computer-readable media and configured to execute the instructions to send a radio resource control request message to a wireless network controller, receive a response message including an extended wait time value, determine upon receipt of the response message whether a back-off timer associated with the apparatus is running, and determine whether to start the backoff timer with the received extended wait time value based at least in part on the determination of whether the back-off timer is running and the received wait time value is integrity protected.
Abstract: VXLAN inter-domain communications and packet forwarding are supported between a virtual machine (VM) in a Virtual eXtensible Local Area Network (VXLAN) domain and an external client or another domain via a Layer Two (L2)/Layer Three (L3) switch, router, or network. A VXLAN Tunnel End Point (VTEP) coupled to the VM at a server and to the L2/L3 switch, router, or network and associated with the VXLAN domain is configured to implement a method for enabling the VXLAN inter-domain communications. The method includes receiving a packet at the (VTEP), replacing a source or destination Media Access Control (MAC) address in the packet if the packet is part of communications between a VXLAN domain for the VMs and an external component without encapsulating or decapsulating the packet, and forwarding the packet. Alternatively, the VTEP encapsulates or decapsulates an incoming packet if the packet is part of a VXLAN internal domain communications.
Abstract: In an example embodiment, a wireless device, such as an access point, employs multiple radios that operate on the same or overlapping channels. For example, the wireless device can be upgraded with a new radio that is compatible with a newer protocol to provide service to newer clients that are capable of employing the new protocol, while also providing backwards compatibility to legacy clients.
Type:
Grant
Filed:
September 26, 2012
Date of Patent:
May 12, 2015
Assignee:
Cisco Technology, Inc.
Inventors:
Douglas Paul Kirchenbauer, Neil Robert Diener, Corey Metsker, Fred J. Anderson
Abstract: When signals received by receiving antennas included in each terminal are subjected to MMSE combining, it is configured that each terminal is able to grasp position of desired signal in signal vector obtained after combining. A base station 100 receives by a receiving antenna 23 from the terminal apparatus channel state information between a transmitting antenna 16 and spatial multiplexing object antennas included in each terminal apparatus. A transmit weight calculation unit 19 calculates a transmit weight for performing spatial multiplexing transmission to the terminal apparatus based on the channel state information. Transmit weight multiplication unit s 12 and 18 multiplies an information signal addressed to each terminal apparatus to be performed spatial multiplexing by the transmit weight. A signal multiplexing unit 13 multiplexes the information signal multiplied by the transmit weight and an information to specify the information signal that needs to be demodulated by each terminal apparatus.
Abstract: According to one embodiment, an allocating unit of a wireless communication device finds for each user an unallocated radio channel having maximum communication quality as a first radio channel, and calculates a first metric matching a communication state using communication quality in the first radio channel, selects one user from the plurality of users based on the first metric and allocates the first radio channel to the selected user. Further, the allocating unit repeats allocating an unallocated radio channel adjacent to a radio channel allocated to the selected user on a frequency domain until predetermined conditions are satisfied.
Abstract: An electronic device is described. When this electronic device transmits a request packet to another electronic device with a discovery request, the electronic device stores information specifying the discovery request. If a response packet with an answer to the discovery request is received from the other electronic device, the electronic device stores additional information included in the answer. This additional information specifies a position in an information hierarchy in the other electronic device and a data format associated with the position. By partially caching the information and the additional information, the electronic device may significantly reduce the number of request and response messages, and thus the delay, when the electronic device subsequently accesses data in the information hierarchy.
Type:
Grant
Filed:
September 26, 2012
Date of Patent:
April 7, 2015
Assignee:
Apple Inc.
Inventors:
Augustin Prats, Jason C. Conn, Joakim Linde, Brian J. Tucker
Abstract: Systems and methods provide for performing admission control in a communications network. The method includes: receiving a request for an entity or service for admission to the communications network; calculating resources, wherein the step of calculating resources includes: estimating a first future resource use for current entities and services in the communications network; and estimating a second future resource use for the entity or service received in the request; determining admission to the communications network of the received request based at least in part on the step of calculating resources; and using a partitionable booking window, if admission is allowed for the received request, for booking the first and second future resource uses based at least in part on the step of calculating resources.
Type:
Grant
Filed:
June 19, 2012
Date of Patent:
March 31, 2015
Assignee:
Telefonaktiebolaget L M Ericsson (publ)
Inventors:
Ricardo Paredes, Xixian Chen, Anders Ohlsson
Abstract: A radio network node (110) configured to schedule transmission between the radio network node (110) and a user equipment (120) and a method therein as well as a user equipment (120) configured to receive a scheduling grant for a transmission between the user equipment (120) and the radio network node (110) and a method therein are provided. The radio network node (110) determines (201) a transport block size scaling factor. Next, the radio network node (110) determines (206) a scheduling grant for the transmission based on the transport block size scaling factor. Furthermore, the radio network node (110) sends (207) the transport block size scaling factor and the scheduling grant to the user equipment (120).
Abstract: A method and an apparatus for acquiring initial synchronization in a wireless communication system are provided. A relay station determines whether or not the initial synchronization is acquired, determines a start position of a frame using a peak of an autocorrelation signal detected based on a preamble and a relay-amble (R-amble) received from a base station in the case in which the initial synchronization is not acquired, and determines the start position of the frame using a peak of an autocorrelation signal detected based on the relay-amble received from the base station in the case in which the initial synchronization is acquired.
Type:
Grant
Filed:
June 19, 2012
Date of Patent:
February 10, 2015
Assignee:
Electronics and Telecommunications Research Institute
Inventors:
Yong Su Lee, Dae Geun Park, Young Il Park, Won Ryu
Abstract: A data communication system is disclosed including a cable medium and modulator adapted to carry data and power between a high speed data source and a high speed data sink. Relatively high speed data (e.g. the TMDS data of an HDMI interface) may be carried on optical waveguides in the cable medium. Relatively low-speed data (e.g., DDC data and clock, and CEC of an HDMI interface) may be carried on a separate set of optical waveguides or wire mediums. The optical waveguides allow for substantially less signal distortion of the high-speed data, thereby allowing the cable medium to achieve much higher lengths without significantly affecting the high-speed signaling.
Abstract: Methods and apparatus for improved packet data flow mobility and packet data distribution and collection across heterogeneous networks. In one embodiment, a source device with one or more wireless interfaces receives data to be transmitted to a target device. The device sequences the received data with corresponding packet sequence numbers according to characteristics of the service providing the data. The sequenced data is classified according to application/service requirements (e.g., minimum Quality of Service requirements, service type, etc.). The classified data is assigned to available network interfaces, which can support the classifications of the data. The data is transmitted over the assigned network interfaces to the corresponding receiving interface. The data is collected and reassembled according to the packet sequence number at the target destination.
Abstract: Techniques are described for verifying the connectivity status of multiple paths through a computer network. The techniques may be useful in testing the connectivity of label switched paths (LSPs), and particularly useful point-to-multipoint (P2MP) LSPs. In some embodiments, a P2MP label switched path (LSP) ping protocol may be used a first connectivity verification protocol for the P2MP LSP and a Multipoint Bidirectional Forwarding Detection (MP BFD) protocol may be used as a second connectivity verification protocol. In addition, use of the LSP ping protocol for connectivity testing of the P2MP LSP may be used to boot-strap session information for MP BFD sessions with egress devices of the P2MP LSP.
Abstract: Various embodiments of primary synchronization signal detection are provided. In one aspect, a method receives one or more signals at one or more antennas of a receiver. The method processes the one or more received signals by decimation filtering the one or more received signals to provide one or more decimated signals, each of the one or more decimated signals having a predetermined symbol size, and enumerating correlation of the one or more decimated signals with a plurality of reference signals to provide correlation results. The method then detects a primary synchronization signal (PSS) based on the correlation results.
Type:
Grant
Filed:
September 26, 2012
Date of Patent:
September 23, 2014
Assignee:
Metanoia Communications Inc.
Inventors:
Jeffrey C. Strait, Emanoil Felician Bors