Research in Motion Corporation

Blackberry Corporation

David Stuart Furbeck

Sean Bartholomew Simmons

Stefan Erik Janhunen

Xiaoming Zhao

Yufei W Blankenship

Richard Charles Burbidge

Suresh Chitturi

Yufei Wu Blankenship

Methods, apparatus and articles of manufacture to support device-to-device communication in a rich communication service context are disclosed. Some example methods disclosed herein include sending, to a network node, first device-to-device capability information for a first device, the first device-to-device capability information being associated with device-to-device functionality supported by the first device, and receiving, from the network node, second device-to-device capability information for a second device associated with a contact stored in the first device, the second device-to-device capability information being associated with device-to-device functionality supported by the second device. Other example methods disclosed herein include receiving, from a first device, first device-to-device capability information for the first device, and sending, to the first device, second device-to-device capability information for a second device associated with a contact stored in the first device.

Supporting device-to-device communication in a rich communication service context

An apparatus and method pertaining to transmitting media content recorded by a media recorder in combination with metadata. That metadata can include information regarding one or more of technical information regarding the media recorder (such as, but not limited to, information that categorically characterizes the media recorder as regards a type of media recorder and/or information regarding technical specifications for the media recorder), orientation information regarding the media recorder when recording the media content (such as, but not limited to, information that corresponds to a field of view when recording the media content), and parameter settings regarding the media recorder when recording the media content (such as, but not limited to, information regarding selectively variable parameters such as zoom settings and digital imaging sensitivity settings).

Apparatus and method for processing media content

Method and devices for a client device to receive a presentation streamed via HTTP. The client device receives a first segment of the presentation, the first segment including presentation metadata related to a first presentation description of the presentation. The client device sends a request based at least in part on a portion of the presentation metadata related to the first presentation description.

Method and apparatus for receiving presentation metadata

A method for obtaining media presentation description information. The method includes a client obtaining information related to a change in a first Media Presentation Description (MPD) on a server. The method further includes the client updating a second MPD on the client with the information related to the change.

Media presentation description delta file for HTTP streaming

A method is provided providing position information. The method comprises sending, by a first device to a second device, via a real-time transmission protocol, a message specifying at least one position-related parameter associated with the second device. The method further comprises receiving, by the first device from the second device, via the real-time transmission protocol, the at least one position-related parameter.

Real-time delivery of location/orientation data

A method, apparatus, and computer program product for indicating and responding to various congestion levels in a communication system, such as a wireless communication network. A congestion level in the network is determined, and a percentage of data packets to be transmitted to an endpoint, such as user equipment or another network endpoint serving the user, are marked to indicate the congestion level. The endpoint determines the congestion level at the network from the percentage of received data packets that are marked and may initiate an appropriate response behavior in response to the determined congestion level.

Congestion level indication with explicit congestion notification in communication systems

A system and method for communicating wirelessly from a mobile device to a remote receiver station is disclosed. The system includes a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station. The system also includes a voice-band modem that, upon initiation of the data transfer process is configured to receive data for transfer to the remote receiver station, divide the source data into a collection source packets, and encode the data using a fountain code encoding protocol to form a series of encoded packets. The voice band modem is also configured to transmit the series of encoded packets to the remote receiver station as a burst including all of the source data and repeatedly transmit the encoded packets until receiving an indication that the series of packets including all of the source data has been received at the receiving station.

System and method for communicating using an in-vehicle system

Methods and apparatus to facilitate device-to-device communication with a remote device registered with a communication network are described. One example method may include obtaining an identity information of the second device from an address book, submitting the identity information of the second device to a communication network, estimating device-to-device (D2D) proximity of the second device, generating an indication of the proximity of the second device relative to the first device, and initiating a device-to-device communication session with the second device when the indication is that the second device is proximate.

Methods and apparatus to facilitate device-to-device communication

A system and method to be used with first and second devices where the first and second devices are capable of communicating using a subset of different modulation schemes wherein the subset includes at least first and second different modulation schemes, the method for optimizing transmission of data from the first device to the second device, the method comprising the acts of at the first device, when data is to be transmitted from the first device to the second device, receiving at least a portion of a trigger signal from the second device wherein the transmitted trigger signal includes data transmitted using a sequence of at least two of the modulation schemes from the subset, the portion of the trigger signal received being a received trigger signal, analyzing the received trigger signal to identify one of the modulation schemes from the subset as a function of the received trigger signal as an initial modulation scheme to be used to transmit data to the second device and transmitting the data from the first device to the second device using the initial modulation scheme.

A system and method for communicating wirelessly from a mobile device to a remote receiver station is disclosed. The system includes a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station. The system also includes a voice-band modem that, upon initiation of the data transfer process. The voice-band modem is configured to receive data for transfer to the remote receiver station, encode the data using a fountain code encoding protocol to form a series encoded packets, and repeatedly transmit the encoded packets until receiving an indication that the series of packets has been received at the receiving station.

A method, system and computer program product for optimal encoding for an image defined by image data. The quantization table, run-length coding and Huffman codebook are selected to minimize a Lagrangian cost function, wherein the minimization includes iteratively determining the optimal run-size pairs and in-category indices for minimizing a rate-distortion cost function, and wherein the rate-distortion cost function includes a perceptual weighting factor applied to a quantization error. The perceptual weighting factor adjusts the rate-distortion cost function to apply greater weight to lower frequency quantization error than to higher frequency quantization error.

Optimization of image encoding using perceptual weighting

A client device and a server receive and send a presentation streamed via HTTP. The client device sends a content request and the server receives the content request. The client device receives and the server sends a first presentation description based on the content request, wherein the presentation description comprises a fetch interval. The client device requests or otherwise receives a second presentation description before a duration associated with the fetch interval is exceeded.

Method and apparatus for updating http content descriptions

A method, apparatus, and computer program product for responding to congestion levels in a communication system by rate adaptation. A congestion condition is indicated by marking data packets. In response to receiving an indication of congestion, a data rate is reduced. A rate reduction inhibit timer is started, and further rate reduction is initiated if congestion is indicated after the rate reduction inhibit timer has expired. A rate increase timer is used to initiate a rate increase if no indication of congestion is received during a rate increase time.

Explicit congestion notification based rate adaptation using binary marking in communication systems

A disclosed example method for managing media content includes accessing metadata information for an available media and retrieving, from the accessed metadata, at least a uniform resource locator (URL) and one or more byte range, where one or more portions of the available media being addressable by the one or more byte range and the URL combination. The example method also includes sending a first request requesting a first at least one portion of the available media based on retrieved metadata.

Growing community of inventors

Irving, TX, United States of America

David Stuart Furbeck