Abstract: A rechargeable lithium ion button cell battery having a sealed housing comprises an inner casing and an outer casing, both casings have at least one flat area as top or bottom of the battery, and a round or oval sidewall vertically formed to the flat area. An insulation gasket is positioned between the sidewalls, and the outer casing opening is mechanically crimped to complete the seal of the battery. Inside the sealed housing the anode and cathode electrodes are spiral wound with separator to be a round or oval roll. A roll axis is vertical to the flat area of the casings. The two electrodes are tapered in width to fully utilize the inner space. The electrodes comprise current collectors of metal foils coated with lithium-intercalating active materials, leaving small area of uncoated metal foils as conductor tabs for connecting the electrodes to the casings.

Abstract: This application discloses a method for visualized network operation and maintenance, including receiving a request for visualized network operation and maintenance, generating a workflow for visualized network operation and maintenance according to the request for visualized network operation and maintenance, and creating a network modeling input, and performing, according to the workflow for visualized network operation and maintenance, the network modeling input, and original information of network modeling, analog simulation on a network determined by the network modeling input.

Abstract: The present invention discloses a method, an apparatus, and a system for monitoring quality of an OTT video, which can implement monitoring of quality of an OTT video in a convenient manner. An OTT video monitoring apparatus intercepts a message sent by an OTT video terminal to an OTT video source for requesting to watch an OTT video; sends a response message to the OTT video terminal, where the response message carries a monitoring instruction, so that the OTT video terminal obtains identifier information of the OTT video according to the monitoring instruction; the OTT video monitoring apparatus obtains the identifier information of the OTT video from the OTT video terminal; and monitors quality of the OTT video according to the identifier information of the OTT video.

Abstract: Embodiments of the present disclosure provide a method, a device and a system for evaluating a user experience value of video quality. The method is: acquiring an uplink packet of a user equipment for requesting to watch an OTT video, where the uplink packet is transmitted by the user equipment to a video server storing the OTT video and carries request information of the user equipment on the OTT video; acquiring a downlink packet corresponding to the uplink packet, where the downlink packet is transmitted by the video server to the user equipment and carries the OTT video, and the OTT video is transmitted by the video server according to the request information in the uplink packet; buffering the downlink packet; and in response to determining that the buffered downlink packet satisfies a resolving condition, resolving the OTT video in the buffered downlink packet to generate a user experience value.

Abstract: A faulty link detection method includes receiving statistical data that is reported by all nodes every preset quantity of packets that carry a program clock reference value. All the nodes collect statistical data starting from a unified program clock reference value. The quantity of packets lost between an upstream node and a downstream node among all the nodes is acquired according to the statistical data. A faulty link is determined according to the quantity of packets lost between the upstream node and the downstream node.

Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for evaluating video quality. In the embodiments of the present invention, a method in the prior art that the video quality is determined only according to the number of lost packets and a packet loss rate is modified, and the location of the most important lost packet is determined by analyzing the influence of the lost packet on other packets, and a damage degree or degree of intactness of the video frame is determined according to the most important lost packets, so as to determine the quality of the video frame. The method greatly improves the precision for evaluating the video quality.

Abstract: A serving method of a cache server relates to the field of communications, and can reduce bandwidth consumption of an upstream network and alleviate network pressure. The method include: receiving first request information sent by multiple user equipments, where the first request information indicates data separately required by the multiple user equipments and request points for the data separately required; if it is determined that same data is indicated in the first request information sent by at least two user equipments among the multiple user equipments and the same data has not been cached in the cache server, selecting one request point from request points falling within a preset window; and sending second request information to a source server, where the second request information indicates the uncached data and the selected request point.

Abstract: Embodiments of the present invention discloses a method and an apparatus for evaluating video quality, which relate to the field of communications technologies, and are invented for improving accuracy of evaluating quality of an IPTV service. The method includes: acquiring a channel video stream; acquiring a decoding feature parameter of a decoder, where the decoding feature parameter at least includes a decoding buffer capacity; acquiring a frame information loss ratio according to the decoding feature parameter, and acquiring mean opinion score-video MOS-V parameters according to the channel video stream; and acquiring a MOS-V value of the channel video stream according to the frame information loss ratio and the MOS-V parameters. The embodiments of the present invention are mainly applied to a technology for evaluating video quality.

Abstract: A faulty link detection method includes receiving statistical data that is reported by all nodes every preset quantity of packets that carry a program clock reference value. All the nodes collect statistical data starting from a unified program clock reference value. The quantity of packets lost between an upstream node and a downstream node among all the nodes is acquired according to the statistical data. A faulty link is determined according to the quantity of packets lost between the upstream node and the downstream node.

Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for evaluating video quality. In the embodiments of the present invention, a method in the prior art that the video quality is determined only according to the number of lost packets and a packet loss rate is modified, and the location of the most important lost packet is determined by analyzing the influence of the lost packet on other packets, and a damage degree or degree of intactness of the video frame is determined according to the most important lost packets, so as to determine the quality of the video frame. The method greatly improves the precision for evaluating the video quality.