Abstract: Disclosed are an aromatic amine derivative and an organic electroluminescent device including the same. A fluorenyl/silafluorenyl group having an ortho-substituted group is introduced into the structure of the aromatic amine derivative. The aromatic amine derivative may be used as a light-emitting material in a light-emitting layer of an organic electroluminescent device. These novel compounds can provide better device performance.

Abstract: An IoT service of a provider network may be used to optimize downlink scheduling for edge devices that use a radio communication protocol (e.g., LoRaWAN). A processing instance receives DL packets from a client application that are to be sent to an edge device. The processing instance adds metadata entries (device ID, message ID) to a metadata queue and stores the DL packets into a data store. A scheduling instance obtains a metadata entry and the associated DL packet, formats the DL packet based on edge device information, and publishes the packet to a gateway topic. A separate connection instance receives the formatted DL packet and sends it to a gateway of the client network.

Abstract: An algorithm update method and an apparatus is disclosed, the method includes: receiving, by an internet protocol camera, a deletion instruction that includes a to-be-deleted algorithm container identifier and that is sent by a monitoring system; deleting, by the internet protocol camera, a to-be-deleted algorithm container instance corresponding to the to-be-deleted algorithm container identifier; receiving, by the internet protocol camera, a deployment instruction that includes a to-be-deployed algorithm description file and that is sent by the monitoring system; parsing, by the internet protocol camera, the to-be-deployed algorithm description file to obtain at least one file identifier; obtaining, by the internet protocol camera, at least one to-be-deployed algorithm image file corresponding to the at least one file identifier; and generating, by the internet protocol camera, a to-be-deployed algorithm container instance based on the at least one to-be-deployed algorithm image file.

Abstract: An IoT service of a provider network may be used to increase the edge device address space while complying with a radio communication protocol. This may allow a service provider to manage a much larger number of client devices that use a particular radio communication protocol that specifies a limited address space (e.g., LoRaWAN). When the IoT service receives a join request via a private gateway of the client network, the service determines, based on the private gateway ID, the client ID of the client that owns the private gateway/client network. The service may generate a unique internal ID for the edge device by combining the client ID with an assigned device ID. The internal ID identifies the edge device as an activated device of the edge network.

Abstract: An algorithm update method and an apparatus is disclosed, the method includes: receiving, by an internet protocol camera, a deletion instruction that includes a to-be-deleted algorithm container identifier and that is sent by a monitoring system; deleting, by the internet protocol camera, a to-be-deleted algorithm container instance corresponding to the to-be-deleted algorithm container identifier; receiving, by the internet protocol camera, a deployment instruction that includes a to-be-deployed algorithm description file and that is sent by the monitoring system; parsing, by the internet protocol camera, the to-be-deployed algorithm description file to obtain at least one file identifier; obtaining, by the internet protocol camera, at least one to-be-deployed algorithm image file corresponding to the at least one file identifier; and generating, by the internet protocol camera, a to-be-deployed algorithm container instance based on the at least one to-be-deployed algorithm image file.

Abstract: The present invention discloses a flow table generating method and apparatus. The method includes: obtaining, by an SDN controller, a user data packet processing manner of a VAS server that is sent by a VAS server information collector; generating a flow table according to service chain information of a user data packet, the user data packet processing manner of the VAS server, and a 5-tuple of the user data packet; and sending the flow table to an SDN switch, so that the SDN switch can send the user data packet to a corresponding VAS server according to the flow table, thereby implementing access of the user data packet to a related VAS server in a case in which a VAS server modifies a 5-tuple of a user data packet.

Abstract: In one embodiment, a method of serving media includes receiving a request to serve a cacheable media content to a user equipment at a second media server deployed in a second layer2 access network. The request is received around when the user equipment is handed-off from a first layer2 node in a first layer2 access network to a second layer2 node in the second layer2 access network and when a streaming session of the cacheable media content to the user equipment from a first media server is terminated. The method further includes determining if the cacheable media content is stored in a cache of the second media server, and serving the cacheable media content from the cache of the second media server to the user equipment if the media content is stored in the cache of the second media server.

Abstract: In one embodiment, a method for mobile network function virtualization (MNFV) includes creating an evolved packet core (EPC) cluster and associating a sub-network with the EPC cluster. The method also includes booting a virtual machine (VM) and attaching the VM to the EPC.

Abstract: In one embodiment, a method of serving media includes receiving a delivery log of traffic use after every first time interval for an user equipment. The user equipment is part of a hot billing class of users. The traffic use comprises data usage by the user equipment during communication with a media server in a layer2 access network. A user traffic information computed from the delivery log is transmitted to a billing center. A account status information is received from the billing center. The account status information is received if the user equipment exceeds a user account metric. A session termination information based on the account status information is transmitted.

Abstract: In one embodiment, a method of serving media includes receiving a request to serve media content to an user equipment, and receiving caching information regarding the media content. The caching information includes information regarding whether the media content requested by the user equipment is cacheable. A first media server is assigned from a hierarchical set of media servers to serve the user equipment if the media content to be served is cacheable. The hierarchical set of media servers includes a plurality of first type of media servers deployed in a plurality of layer2 (L2) access networks. The user equipment is coupled to the content delivery network through a layer2 access network of the plurality of L2 access networks.

Abstract: In one embodiment, a method of serving media includes receiving a delivery log of traffic use after every first time interval for an user equipment. The user equipment is part of a hot billing class of users. The traffic use comprises data usage by the user equipment during communication with a media server in a layer2 access network. A user traffic information computed from the delivery log is transmitted to a billing center. A account status information is received from the billing center. The account status information is received if the user equipment exceeds a user account metric. A session termination information based on the account status information is transmitted.

Abstract: In one embodiment, a method of serving media includes receiving a request to serve a cacheable media content to a user equipment at a second media server deployed in a second layer2 access network. The request is received around when the user equipment is handed-off from a first layer2 node in a first layer2 access network to a second layer2 node in the second layer2 access network and when a streaming session of the cacheable media content to the user equipment from a first media server is terminated. The method further includes determining if the cacheable media content is stored in a cache of the second media server, and serving the cacheable media content from the cache of the second media server to the user equipment if the media content is stored in the cache of the second media server.

Abstract: In one embodiment, a method of serving media includes receiving user profiles from a layer3 node in an access network, and receiving a request to serve media content to a user equipment. The user profiles include information relating to user account and/or network characteristics of the user equipment. The method further includes using an user equipment information from the user profiles, assigning a first media server from a hierarchical set of media servers to serve the user equipment if the media content to be served is cacheable. The hierarchical set of media servers include a plurality of first type of media servers deployed in a plurality of layer2 (L2) access networks. The user equipment is coupled to a content delivery network through a layer2 access network of the plurality of layer2 access networks.

Abstract: Carbide pellets including relatively small amounts of metallic binder are produced by steps of pressing, comminuting, shaping and sintering. The carbide pellets may be used as wear resistant hard facing materials that are applied to various types of tools. The carbide pellets provide improved mechanical properties such as hardness and abrasiveness while maintaining required levels of toughness and strength.

Abstract: The present invention discloses a flow table generating method and apparatus. The method includes: obtaining, by an SDN controller, a user data packet processing manner of a VAS server that is sent by a VAS server information collector; generating a flow table according to service chain information of a user data packet, the user data packet processing manner of the VAS server, and a 5-tuple of the user data packet; and sending the flow table to an SDN switch, so that the SDN switch can send the user data packet to a corresponding VAS server according to the flow table, thereby implementing access of the user data packet to a related VAS server in a case in which a VAS server modifies a 5-tuple of a user data packet.

Abstract: In one embodiment, a method of serving media includes receiving a request to serve a cacheable media content to a user equipment at a second media server deployed in a second layer2 access network. The request is received around when the user equipment is handed-off from a first layer2 node in a first layer2 access network to a second layer2 node in the second layer2 access network and when a streaming session of the cacheable media content to the user equipment from a first media server is terminated. The method further includes determining if the cacheable media content is stored in a cache of the second media server, and serving the cacheable media content from the cache of the second media server to the user equipment if the media content is stored in the cache of the second media server.

Abstract: In one embodiment, a method of serving media includes receiving user profiles from a layer3 node in an access network, and receiving a request to serve media content to a user equipment. The user profiles include information relating to user account and/or network characteristics of the user equipment. The method further includes using an user equipment information from the user profiles, assigning a first media server from a hierarchical set of media servers to serve the user equipment if the media content to be served is cacheable. The hierarchical set of media servers include a plurality of first type of media servers deployed in a plurality of layer2 (L2) access networks. The user equipment is coupled to a content delivery network through a layer2 access network of the plurality of layer2 access networks.

Abstract: In one embodiment, a method of serving media includes receiving a request to serve media content to an user equipment, and receiving caching information regarding the media content. The caching information includes information regarding whether the media content requested by the user equipment is cacheable. A first media server is assigned from a hierarchical set of media servers to serve the user equipment if the media content to be served is cacheable. The hierarchical set of media servers includes a plurality of first type of media servers deployed in a plurality of layer2 (L2) access networks. The user equipment is coupled to the content delivery network through a layer2 access network of the plurality of L2 access networks.

Abstract: In one embodiment, a method of serving media includes receiving a request to serve media content to an user equipment, and receiving caching information regarding the media content. The caching information includes information regarding whether the media content requested by the user equipment is cacheable. A first media server is assigned from a hierarchical set of media servers to serve the user equipment if the media content to be served is cacheable. The hierarchical set of media servers includes a plurality of first type of media servers deployed in a plurality of layer2 (L2) access networks. The user equipment is coupled to the content delivery network through a layer2 access network of the plurality of L2 access networks.

Abstract: In one embodiment, a method for mobile network function virtualization (MNFV) includes creating an evolved packet core (EPC) cluster and associating a sub-network with the EPC cluster. The method also includes booting a virtual machine (VM) and attaching the VM to the EPC.