Patent application number | Description | Published |
20140019635 | OPERATION AND ARCHITECTURE FOR DASH STREAMING CLIENTS - An adaptive HTTP streaming client may prevent network-level transcoding, may detect that transcoding takes place and implement a custom reaction, and/or may adopt rate estimation and stream switching logic, which may produce meaningful decisions in the presence of caching and transcoding operations in the network. A streaming client may use hash values of received segments, attributes of a received stream of content, and/or segment length checks of representations of segments to determine if the segments were transcoded. A streaming client may use random split range-based HTTP GET requests to deter transcoding. A streaming client may use split range-based HTTP GET requests to improve the accuracy of its bandwidth estimation. A streaming client may use any combination of the techniques described herein to detect transcoding, deter transcoding, adopt improved bandwidth and/or bitrate estimation, and adopt improved switching logic. | 01-16-2014 |
20140032714 | METHOD AND APPARATUS FOR PUBLISHING LOCATION INFORMATION FOR A CONTENT OBJECT - A method and apparatus are described for publishing location information for a content object. A content router (CR) may desire to publish location information for a content object and determine whether a utility function (e.g., popularity) of the content object is greater than a threshold. The CR may advertise the location information to a plurality of CRs on a condition that the utility function is greater than the threshold. Alternatively, the CR may provide the location information to a resolver as determined by a distributed hash table (DHT) scheme on a condition that the utility function is not greater than the threshold. The length of a name of the content object may be based on the popularity of the content object. Names of less popular content objects may be aggregated to reduce overhead. | 01-30-2014 |
20140036845 | CENTRALIZED CHANNEL SELECTION METHOD AND APPARATUS FOR WIRELESS NETWORKS IN A DENSE DEPLOYMENT ENVIRONMENT - A method and apparatus are described including scanning a channel, generating a report for the scanned channel, transmitting the channel report to an associated access point and receiving a channel assignment responsive to said channel report. Also described are a method and apparatus including scanning a channel, generating a first channel report, receiving a second channel report from an associated client, transmitting the first channel report and the second channel report to a server, receiving a channel assignment message from the server responsive to the first and second channel reports and transmitting the channel assignment message to the associated client. Further described are a method and apparatus including receiving a channel report from an associated access point, building an interference graph responsive to the channel report, determining channel assignments based on the interference graph and transmitting a channel assignment message to the associated access point. | 02-06-2014 |
20140115037 | METHOD AND APPARATUS FOR AUTOMATICALLY DISCOVERING AND RETRIEVING CONTENT BASED ON CONTENT IDENTITY - A method and apparatus for automatically discovering and retrieving content based on a content identity (ID) are disclosed. User agents and content control entities in the network interact for registering the content, discovering the content hosts and sources, and initiating and controlling the content session. A content name resolution handler (CNRH) is provided for mapping content IDs to network locations or addresses. Two or more content service provider networks may interconnect each other to discover and retrieve the content. A content request from a client device includes a content ID that uniquely identifies a content object. The content ID is resolved with a CNRH to obtain identity information of at least one content provider for serving the content request, and the content request is forwarded to the selected content provider. The content request may be routed to the selected content provider via IP multimedia subsystem (IMS) control plane entities. | 04-24-2014 |
20140173034 | CONTENT IDENTIFICATION, RETRIEVAL AND ROUTING IN THE INTERNET - A method and apparatus for content identification, retrieval, and routing in the Internet are provided. In the method and apparatus, content is uniquely identified using an object identifier (OID), and the OID is used for routing and retrieving content in an Internet network. Further, in the method and apparatus, OID summarization based on one or more OIDs may be performed, in which Bloom filters are applied to a portion of the one or more OIDs. Furthermore, hash functions may be applied to network node identities to determine location resolver nodes associated with content. | 06-19-2014 |
20140237078 | METHOD AND APPARATUS FOR MANAGING CONTENT STORAGE SUBSYSTEMS IN A COMMUNICATIONS NETWORK - A method and apparatus for managing content storage subsystems in a communications network are disclosed. The communications network is equipped with a plurality of content storage subsystems. The content storage subsystems store local copies of content to facilitate the delivery and distribution of the content to wireless transmit/receive units, WTRUs. The network, which is equipped with a proxy server and an entry server, receives requests for content or general-purpose data referencing content and determines whether the content is stored in the storage subsystems. In addition, the network also performs content ingestion in order to store copies of the content in the storage subsystems and content modification in order to move content from one storage location to another to achieve optimal content storage and distribution. | 08-21-2014 |
20140245359 | Content Delivery Network Interconnection (CDNI) Mechanism - Embodiments contemplate the movement of mobile node (MN) from a first access network to a second access network, while in communication with a CDN server (e.g. a surrogate providing a multimedia streaming session). The server selection may become sub-optimal as a result of this movement. A first CDN may learn about MN mobility event via the MN, an access network node, the server, or another node. The first CDN may trigger reselection by upstream CDN by sending a CDNI reselection request message, including information for the upstream CDN to perform request routing for the MN with the specified content, at a different location. The upstream CDN may perform the request routing procedure. The upstream CDN may return the request routing result to first CDN. The initial server may send a redirection message back to the application, which may interpret the message and continue streaming from a different server. | 08-28-2014 |
20140355411 | CELL DEPENDENT MULTI-GROUP HYBRID AUTOMATIC REPEAT METHOD FOR MULTICAST IN WIRELESS NETWORKS - A method and apparatus are described including determining address using an access point address and a multicast group address, transmitting a recovery request message to a recovery server to request recovery data using the address and receiving the recovery data from the recovery server. Also described are a method and apparatus including receiving a registration message, transmitting a reply to the registration message, receiving a recovery request message, transmitting recovery data responsive to the recovery request message and transmitting a message to a recovery multicast group to determine status of the recovery multicast group. | 12-04-2014 |
20150019649 | Peer to Peer (P2P) Operation by Integrating with Content Delivery Networks (CDN) - A method and apparatus for use in a network storage control peer (NSCP) supporting peer to peer (P2P) operation are disclosed. The method includes receiving a content map request message and transmitting a content map response message including an indication that a CDN-stored content piece is available from the NSCP; and, receiving a content fetch request message for the content piece and transmitting a response message including a redirection command and the CDN URI for the content piece. | 01-15-2015 |
20150026352 | METHOD AND SYSTEM FOR CDN EXCHANGE INTERCONNECTION - The disclosure pertains to CDNI interconnection at a global level. CDNXs are enhanced to provide logging services associated with bilateral or multilateral agreement with CDNs, where these CDNs are interconnected with other CDNs not using the same CDNX. Moreover, additional functions are added in CDNXs and CDN Interconnection protocols to support CDN capability advertisement, CDN peer discovery, and to bootstrap CDN Interconnection. | 01-22-2015 |
20150036528 | JOINT ASSOCIATION, ROUTING AND RATE ALLOCATION IN WIRELESS MULTI-HOP MESH NETWORKS - A method and apparatus are described including collecting network information, determining an association, bandwidth allocation and routing scheme based on the collected network information, notifying a mesh access point of the association, the bandwidth allocation and the routing scheme and notifying a client node of its association information. Also described are a method and apparatus including measuring link quality and channel conditions, reporting results of the measuring act to a controller, receiving a routing decision and data forwarding instructions from the controller and forwarding the routing decision and the data forwarding instructions to a client node. Further described are a method and apparatus including measuring link quality and channel conditions, reporting results of the measuring act to a controller, receiving association instructions from the centralized controller and updating previously stored association instructions with the received association instructions. | 02-05-2015 |
20150044989 | SPONSORING OF A MOBILE STATION SESSION BY ANOTHER MOBILE STATION IN A WIRELESS NETWORK - An apparatus and method are described for sponsoring service and preferential traffic handling, (i.e., data connectivity) by wireless transmit/receive units (WTRUs). A first WTRU may initiate user sponsoring of a second WTRU via an application server (AS). The first WTRU may receive a service trigger from the AS and forward the service trigger to the second WTRU. The second WTRU may then initiate a sponsored session with the AS using the service trigger in order to receive a service from the AS. The first WTRU may also request the AS to transfer a credit to the second WTRU. The AS may establish a direct communication link with a charging system including an online charging function (OCF) and a charging data function (CDF). The AS may send a request to a network to provide preferential traffic handling needed to deliver content to the second WTRU. | 02-12-2015 |