Patent application number | Description | Published |
20090036137 | METHOD FOR MINIMIZING EXPENDITURES ASSOCIATED WITH OPTIMIZED BACKHAUL NETWORKS - The invention includes a method for determining an expenditure associated with a network. A method includes obtaining network information associated with a portion of a network, categorizing each of a respective plurality of cells as one of an aggregated cell and a non-aggregated cell, determining an aggregating node configuration for at least one aggregating node associated with at least one base station associated with an aggregated cell, determining a deaggregating node configuration for at least one deaggregating node associated with at least one of the at least one aggregating node, and determining the expenditure according to at least one of the aggregating node configuration and the deaggregating node configuration. The categorization of cells is performed using the network information. | 02-05-2009 |
20100158051 | Method, Apparatus and System for Frequency Synchronization Between Devices Communicating over a Packet Network - An endpoint or other communication device of a communication system includes a clock recovery module. The communication device is operative as a slave device relative to another communication device that is operative as a master device. The clock recovery module comprises a clock recovery loop configured to control a slave clock frequency of the slave device so as to synchronize the slave clock frequency with a master clock frequency of the master device. The clock recovery loop utilizes a frequency error estimator implemented as a maximum-likelihood estimator with slope fitting based on a sequence of arrival timestamps, and a loop filter implemented as a series combination of an adaptive-bandwidth filter and a proportional-integral controller. The clock recovery module may further comprise a discontinuity detector configured to detect a discontinuity in delays of respective timing messages, and a loop controller operative to place the clock recovery loop in a particular state responsive to detection of the discontinuity. | 06-24-2010 |
20110164672 | Orthogonal Multiple Description Coding - In one aspect, an orthogonal multiple description encoder comprises orthogonal multiple description generation circuitry configured to produce multiple descriptions of a given signal by processing the signal using respective ones of a plurality of orthogonal matrices. Each of the multiple descriptions is generated as a function of the signal and a corresponding one of the plurality of orthogonal matrices. Other aspects include an orthogonal multiple description decoder, orthogonal multiple description encoding and decoding methods, and associated computer program products. | 07-07-2011 |
20110256865 | User Equipment Adjustment of Uplink Satellite Communications - User equipment of a communication system in one aspect obtains data indicative of the position of a satellite, and obtains data indicative of the position of the user equipment. The user equipment computes a delay measure based on the data indicative of the position of the satellite and the data indicative of the position of the user equipment, and adjusts the timing of a communication transmitted from the user equipment to the satellite based on the delay measure. In an illustrative embodiment, the user equipment receives data indicative of position and velocity of the satellite, and adjusts both timing and frequency of the communication based on the position and velocity data. The timing and frequency adjusted communication may then be transmitted to the satellite over a unicast uplink channel. | 10-20-2011 |
20120144438 | METHOD AND APPARATUS FOR DISTRIBUTING CONTENT VIA A NETWORK TO USER TERMINALS - A method and apparatus for distributing content via a network to user terminals includes storing content in a store, the content having a probability value indicating the probability that the content will be required by the user terminals. The content is separated into segments, each segment being associated with a respective segment probability value derived at least from the probability value of the content. The segments are ranked using at least the respective segment probability values. During a time period when the network capacity is greater than at another time, the top J ranked segments, where J is related to the broadcasting bit rate and duration of the broadcast, are predictively broadcast to user terminals. | 06-07-2012 |
20130042275 | METHOD AND APPARATUS FOR CONTROLLING WIRELESS UPLINK SESSIONS - A video session scheduling capability is disclosed. The video session scheduling capability enables scheduling of video transmissions by mobile devices of a cellular sector. In response to a request by a mobile device to transmit a video via a wireless uplink of the cellular sector, a scheduler determines scheduling of the video session. The scheduler receives information indicative of an amount of wireless uplink resources available for supporting uplink video sessions within the cellular sector, receives information associated with the request by the mobile device to establish a video session for transmission of video content from the mobile device via a wireless uplink in the cellular sector, and determines, using the information indicative of an amount of wireless uplink resources available within the cellular sector and the information associated with the video session request, scheduling of the video session via the wireless uplink in the cellular sector. | 02-14-2013 |
20130141519 | TELEPRESENCE APPARATUS FOR IMMERSION OF A HUMAN IMAGE IN A PHYSICAL ENVIRONMENT - A telepresence device allows a remote meeting participant to establish a telepresence at a remote meeting location. The telepresence device provides a video image of the remote meeting participant on a video display screen at a meeting location To enhance the visual sensation that the remote person is present at the meeting location, the telepresence device may display the silhouette image of the remote meeting participant without the image of the background scene of the remote participant's location (e.g., office, home or home office). Further, the telepresence device may be equipped with a rear-facing camera that captures a video image of the background scene behind the telepresence device at the meeting location. The silhouette image of the remote meeting participant may be superimposed on the video image of the background scene at the meeting location, which is captured by the rear-facing camera. | 06-06-2013 |
20140003322 | SEAMLESS MAKE-BEFORE-BREAK TRANSFER OF MULTICAST/BROADCAST SESSIONS | 01-02-2014 |
20140023147 | CROSS LAYER CODING FOR SATELLITE MOBILE TV BROADCAST METHOD AND APPARATUS - Methods and apparatus providing error protection in multicast-broadcast service by encoding multimedia content according to a first protocol to provide a plurality of distinct video streams, coding each of the distinct video streams using respective coding protocols, wherein each coding protocol has associated with it corresponding descriptors and coefficients, and multiplexing the coded video streams toward a wireless network. | 01-23-2014 |
20140177503 | METHOD AND APPARATUS FOR PROVIDING BROADCAST OR MULTICAST SERVICE TO OBSTRUCTED USER EQUIPMENT - Embodiments of the claimed subject matter provide a method and apparatus for providing multicast/broadcast information to obstructed user equipment. Some embodiments of the apparatus include a gateway configured for communicative coupling to an antenna. The gateway is configurable to establish a first broadcast/multicast session for receiving at least one broadcast or multicast service associated with user equipment and establish a second session for providing information received in the first broadcast/multicast session to the user equipment. Some embodiments include user equipment are configurable to provide a request to receive a broadcast service or a multicast service from a gateway that receives the broadcast or multicast service(s) via a first broadcast/multicast session. Some embodiments of the user equipment are also configurable to establish a second session with the gateway for receiving the broadcast or multicast service(s). | 06-26-2014 |
20140177504 | METHOD AND APPARATUS FOR SWITCHING BETWEEN MULTICAST/BROADCAST AND UNICAST SERVICE - Embodiments of the claimed subject matter provide a method and apparatus for switching between multicast/broadcast and unicast service. Some embodiments of the method include determining a number of first users in a first cell receiving one or more first sessions for unicasting content in response to a second user in the first cell requesting the content. Some embodiments of the method also include assigning the first and second users to a second session for broadcasting or multicasting time-aligned content in response to the number of first users being larger than a threshold. | 06-26-2014 |