Nokia Corporation

Nokia Technologies Oy

Core Wireless Licensing S.a.r.l.

Provenance Asset Group LLC

Imed Bouazizi

Miska Matias Hannuksela

Ramakrishna Vedantham

Vinod Kumar Malamal Vadakital

Ye-Kui Wang

Igor Danilo Diego Curcio

Stephan Wenger

Jozef Pieter Van Gassel

Chenghao Liu

Moncef Gabbouj

Roope Olavi Jarvinen

Lassi Ilari Väätämöinen

Jani Antero Peltotalo

Mehdi Rezaei

Marko Antti Juhani Saukko

Lukasz Kondrad

Lassi Illari Vaatamoinen

Marko Anti Juhani Saukko

Jani Peltotalo

A method comprises (a) detecting a packet loss in a partial data packet stream in a peer-to-peer network; (b) signaling an indication of lost packets to one or more sending peers serving the partial data packet stream corresponding to the packet loss; (c) after expiration of a threshold period of time without receiving lost packets, signaling one or more candidate peers a request for retransmission of the lost packets, the candidate peers being peers not serving the partial data packet stream; and (d) receiving the lost packets through one of the candidate peers.

Method and apparatus for handling broken path in peer-to-peer network

A method includes receiving at least an indication of a notification message through a first channel and receiving at least a part of the notification message through a second channel. The receiving at least an indication of a notification message may include a push-type delivery, and the receiving at least a part of the notification message may include a pull procedure. Alternatively, the receiving at least an indication of a notification message may include a poll-type delivery, and the receiving at least a part of the notification message may include a pull procedure.

System and method for delivering notification messages

An extension to a file delivery protocol which permits the signaling of cache control information to a receiving device. Various embodiments of the present invention permit a server or other sending device to signal instructions regarding cache control to a receiving device using the file delivery protocol. This signaling may include information such as whether the receiving device should cache a file, how long the file should be cached for, and/or a cache priority assignment for the file. Various embodiments of the present invention may be particularly useful in the transmission of rich media content, where some content may be sent over RTP while other information is transmitted via the file delivery protocol.

Caching directives for a file delivery protocol

In one aspect, a method includes receiving a multimedia data block. The multimedia data block includes a plurality of data parts. The method further includes interleaving the plurality of data parts to form an interleaved data block based on a priority order. The priority order based on a multimedia data type of the data parts. The method further includes transmitting the interleaved data block. In another aspect, a method includes receiving one or more data parts of an interleaved multimedia data block and determining a first data part of the one or more data parts based on information. The method further includes determining a schedule entry in a schedule for the first data part based on other information.

Method and apparatus for interleaving a data block

A method comprises updating, by an apparatus, a media presentation description file, associated with media content streamed to one or more client devices using hypertext transfer protocol; and embedding, within one or more media segments of the media content, an indication of the update of the media presentation description file. At least one of the one or more media segments is provided, upon a request, to at least one of the one or more client devices.

Method and apparatus for signaling presentation description updates in HTTP streaming

Various embodiments provide for the splitting of a notification message to a user, where the notification message enables at least one of interactivity and delivery of information associated with a media broadcast service. A first component of the notification message carries media content and is transmitted utilizing a file delivery protocol, such as FLUTE, HTTP, and OMA-PUSH. A second component of the notification message carries any synchronization information associated with the interactivity and the delivery of the information associated with the media broadcast service. The second component of the notification message can be transported in an RTP payload via RTP to allow for accurate synchronization of the notification message with a media stream of the media broadcast service containing the media content.

Method and apparatus for synchronizing notification messages

A method includes generating a first coded data stream and a second coded data stream both representing the same content, the first coded data stream and the second coded data stream being independently decodable from each other, transmitting portions of the first coded data stream in first and second time-sliced bursts, and transmitting a portion of the second coded data stream in a third time-sliced burst, where the transmission of the portions of the first and second coded data streams do not overlap with each other, and occur subsequently to each other in transmission order and substantially without delay between transmission of data.

Time-interleaved simulcast for tune-in reduction

Various methods for generating and handling streaming media metrics are provided. One example method includes receiving media presentation data, where the media presentation data is associated with a presentation of streaming media, and determining, based on at least the media presentation data, one or more quality of experience metrics that are to be reported. The example method further comprises generating a metric value corresponding to each of the one or more quality of experience metrics, and causing the metric value corresponding to each of the one or more quality of experience metrics to be reported. Similar and related example methods and example apparatuses are also provided.

Method and apparatus for generating and handling streaming media quality-of-experience metrics

Systems and methods for constructing multiple-level filtering information that is applicable for an aggregate of multiple messages. According to various embodiments, a set of filtering values is constructed for a first level as a union of all filter values of the filtering criteria that belong to the intersection set of filter criteria. At the receiver side, the aggregate transport object is filtered based on the first-level filtering information as a first process. The first-level filtering information may be separate of the transport object. If the transport object is not discarded after first-level filtering, then the second-level filtering information, which requires the processing of the transport object, is used to fetch the messages in the bundle.

System and method for multiple-level message filtering

Apparatus, methods, and computer program products are provided for receiving and presenting, or playing-out, representations of media content and for enabling time synchronization and random seeking across multiple representations. A client device can access an appropriate time mapping fragment that associates play-out time intervals of the media content of the multiple representations with the corresponding media segments to identify the appropriate media segment corresponding to the desired time point within the current representation or in another selected representation. The time mapping fragments may be created and preloaded onto a media content server, and the media content server may transmit the time mapping fragment(s) to a client device upon receiving a request form the client device or as part of a media segment. In other cases, the media content server may create the time mapping fragments dynamically, e.g., upon receiving a request from the client device.

Apparatus and methods for time mapping media segments in streaming media files

A system and method for providing MBMS content distribution using unicast bearers. According to various embodiments, MBMS download user services are delivered to pieces of user equipment by delivering a FLUTE file delivery table via an OMA Push message. One of a number of different additional actions may be used in the delivery of the MBMS download user services. These actions include (1) making a single HTTP GET request using simple URL-encoding format to retrieve all files of the FDT; (2) making a single HTTP GET request using 'group' field of FDT in URL-encoding to retrieve a logical group of files of the FDT; (3) making pipelined HTTP GET requests where each HTTP GET request retrieves at least one file of the FDT; (4) making serialized HTTP GET requests where each HTTP GET request retrieves at least one file of the FDT; (5) making pipelined HTTP GET requests where each HTTP GET request retrieves at least one logical group of files of the FDT; (6) making serialized HTTP GET requests where each HTTP GET request retrieves at least one logical group of files of the FDT; (7) delivering the serviceID of the MBMS user service in the above mentioned OMA PUSH message but not including the serviceID in the FLUTE FDT; (8) an HTTP request to de-register the MBMS UE from the BM-SC for stopping the unicast delivery of the MBMS download user service; and (9) delivering the FDT Instance ID of the FDT Instance in an OMA Push message.

System and method for optimizing download user service delivery to roaming clients

A system and method for assigning notification type values. For dynamic notification types, a two-level mapping between the application and the notification type is performed. As a middle level or intermediary, a Multimedia Internet Message Extension (MIME) type for the notification messages is provided. The MIME type corresponds to the MIME type of the application-specific message part of the notification message. A pointer to a recommended notification application that can consume the messages of that specific type is also provided.

System and method for binding notification types to applications for a notification framework

A system and method for providing faster tuning into a chosen program in a time-sliced multicast and/or broadcast transmission environment. Multimedia data of the same source material but of different transmission and presentation characteristics are coded and compressed. According to various embodiments, simulcast streams of a program are time-sliced, placed maximally apart from each other in terms of transmission time, and sent over the channel.

A system and method for signaling and indicating track relationship information in media files provides a mechanism for signaling the information of layered track groups and the information of multiple description coding (MDC) track groups, as well as a mechanism for signaling track relationship information in an efficient way. In local playback or unicast streaming applications, to select an independently decodable track for a certain media type, the information of alternate track groups is first found via the track relation box, and one track is selected from an alternate track group for the media type. If stream switching is desired, the switching track group information is found via the track relation box. In multicast applications with scalable or MDC streams, the tracks in a layered or MDC group are found via the track relation box and selected among all the layered or MDC groups.

System and method for indicating track relationships in media files

A system and method for signaling the availability of a Multimedia Broadcast/Multicast Service (MBMS) user service in multiple variants. Various embodiments involve the usage of the additional capacity introduced by MBMS Over a Single Frequency Network (MBSFN) in order to carry a higher quality or more robust variant of the service in MBMS. The broadcast multicast service center (BM-SC) provides the same MBMS user service in two variants, one for the regular MBMS and the other for MBSFN. The MBSFN variant of the service may be charged differently and would then need to be protected separately. In various embodiments, the user equipment is informed that the same service is present in different variants and therefore can then select one of the available variants for consumption.

Growing community of inventors

Tampere, Finland

Imed Bouazizi