Nikolai Konrad
Nikolai Konrad Leung, Takoma, MD US
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20150082021 | MOBILE PROXY FOR WEBRTC INTEROPERABILITY - An example method and system for a mobile proxy for WebRTC interoperability is discussed. The method may include receiving a DTLS security handshake from a WebRTC API of a browser endpoint, negotiating an encryption mechanism through a signaling protocol with a non-WebRTC enabled endpoint, completing, using one or more hardware processors, the DTLS security handshake with the WebRTC API of the browser endpoint based on the encryption mechanism, and exchanging, through a mobile proxy, first media traffic from the browser endpoint with the non-WebRTC enabled endpoint and second media traffic from the non-WebRTC enabled endpoint with the browser endpoint. In various embodiments, if the non-WebRTC endpoint uses SDES for negotiation of the encryption mechanism, the encryption mechanism may include SDES-conveyed key information. However, if the non-WebRTC endpoint uses RTP for media exchange of the second media traffic, the encryption mechanism may correspond to a null cipher mode | 03-19-2015 |
Nikolai Konrad Nepomocceno Leung, Takoma Park, MD US
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20130114497 | EFFICIENT VARIABLE RATE FOR BROADCAST/MULTICAST SERVICE - A method, an apparatus, and a computer program product for wireless communication are provided in which at least one bit rate for allocating network resources from a broadcast-multicast service center (BM-SC) is received. The network resources are then allocated based on the at least one bit rate. Moreover, all evolved Node Bs (eNBs) in a broadcast/multicast area are informed of the network resource allocation. Additionally, the network resources are allocated for a session based on a first bit rate, wherein the first bit rate is greater than a guaranteed bit rate (GBR), and the network resource allocation is adjusted to a second bit rate based on the occurrence of an event, wherein the second bit rate is equal to GBR. | 05-09-2013 |
Nikolai Konrad Nepomucenoleung, Takoma Park, MD US
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20090180470 | EFFICIENT INTERWORKING BETWEEN CIRCUIT-SWITCHED AND PACKET-SWITCHED MULTIMEDIA SERVICES - Techniques for signaling a packet size limitation of a circuit-switched terminal to a packet-switched terminal during a multimedia session such as a multimedia telephony session. In one aspect, an interworking node obtains information from the circuit-switched terminal during call setup, and signals to a packet-switched terminal that another end of the telephony session is a circuit-switched terminal. In a further aspect, the interworking node signals to the packet-switched terminal a maximum packet size limitation negotiated with the circuit-switched terminal. Further techniques for the packet-switched terminal to accommodate the maximum negotiated packet size to minimize data reformatting by the interworking node are described. | 07-16-2009 |
20090252227 | VIDEO REFRESH ADAPTATION ALGORITHMS RESPONSIVE TO ERROR FEEDBACK - In general, this disclosure relates to techniques for adaptively determining a rate for intra-coding segments (e.g., macro-blocks) of video data within a sequence of video units (e.g., frames) in response to the receipt of error feedback that is provided by a video decoder. One example method includes receiving feedback from a video decoder that indicates an error associated with coded video data, and, upon receipt of the feedback, determining a rate for intra-coding a specified number of segments of video data for each video unit within a sequence of video units, wherein an intra-coding of segments of video data within one video unit is independent of a coding of segments of video data within other video units within the sequence. | 10-08-2009 |
20120219073 | VIDEO REFRESH ADAPTATION ALGORITHMS RESPONSIVE TO ERROR FEEDBACK - In general, this disclosure relates to techniques for adaptively determining a rate for intra-coding segments (e.g., macro-blocks) of video data within a sequence of video units (e.g., frames) in response to the receipt of error feedback that is provided by a video decoder. One example method includes receiving feedback from a video decoder that indicates an error associated with coded video data, and, upon receipt of the feedback, determining a rate for intra-coding a specified number of segments of video data for each video unit within a sequence of video units, wherein an intra-coding of segments of video data within one video unit is independent of a coding of segments of video data within other video units within the sequence. | 08-30-2012 |