公开(公告)号：WO2021191389A1

公开(公告)日：2021-09-30

申请号：PCT/EP2021/057832

申请日：2021-03-25

Applicant: STREAMROOT

Inventor： YOUSEF, Hiba ,  STORELLI, Alexandre ,  DELMAS, Axel

IPC: H04N21/63 ,  H04L29/08 ,  G06F16/182 ,  H04N21/25 ,  H04N21/466 ,  H04N21/2662 ,  H04N21/462 ,  H04N21/845 ,  H04N21/231 ,  H04N21/433 ,  H04N21/44 ,  H04N21/442 ,  H04N21/61 ,  G06F16/1834 ,  H04L65/4069 ,  H04L67/104 ,  H04L67/1074 ,  H04L67/1097 ,  H04L67/2842 ,  H04L67/2847 ,  H04N21/251 ,  H04N21/4331 ,  H04N21/437 ,  H04N21/44004 ,  H04N21/44209 ,  H04N21/4621 ,  H04N21/4666 ,  H04N21/4667 ,  H04N21/6125 ,  H04N21/632 ,  H04N21/8456

Abstract: The present invention relates to a method for playing on a player of a client device (11) a content streamed in a network (1), said content consisting of a sequence of segments available in a plurality of quality levels, the player being configured so as to choose the quality level of the segments as a function of at least one parameter representative of a segment reception rate, according to an Adaptive BitRate, ABR, logic of the player; the client device (11) comprising a first buffer (M1) for storing segments in a format adapted for transferring within the network (1), the method being characterized in that it comprises performing by a processing unit (110) of the client device (11): (a) receiving from the player a request for a current segment at a first quality level; (b) determining that the player will request according to its ABR logic a next segment at a second quality level after said requested current segment is provided from the first buffer memory (M1), using a model predicting the ABR logic of the player; (c) if said next segment is not present at said second quality level in the first buffer memory (M1), fetching said next segment at said second quality level from the network (1).

公开(公告)号：WO2022011279A1

公开(公告)日：2022-01-13

申请号：PCT/US2021/041116

申请日：2021-07-09

Applicant: SIDEN, INC.

Inventor： MENON, Narayan Parappil ,  BOGATIN, Boris ,  VERMA, Ankur

IPC: H04L29/08 ,  H04L12/26 ,  H04L41/142 ,  H04L43/065 ,  H04L43/0876 ,  H04L43/0882 ,  H04L43/0888 ,  H04L43/16 ,  H04L67/2847 ,  H04L67/306

Abstract: A method and system for controlling the use of dormant capacity for distributing data includes communicating data as part of a regular traffic load through a network having an overall network capacity, determining a dormant capacity of the network based on regular network traffic load, delivering content to a plurality of devices through the network, receiving the data at the plurality of devices, based on receiving the data, measuring an efficiency metric at each of the plurality of devices, communicating the efficiency metric of the devices to a service provider, receiving the efficiency metric at the service provider from the devices, receiving a resource usage report from the network, determining a target throughput for each of the plurality of devices based on the resource usage report and communicating second data to the plurality of devices from a content delivery service based on the target throughput using the dormant capacity.

公开(公告)号：WO2022031989A1

公开(公告)日：2022-02-10

申请号：PCT/US2021/044777

申请日：2021-08-05

Applicant: LEVEL 3 COMMUNICATIONS, LLC

Inventor： BROWN, Timothy ,  KRAVCHENKO, Veronica

IPC: H04L29/06 ,  H04L29/08 ,  H04N21/231 ,  H04L49/252 ,  H04L49/9005 ,  H04L49/9026 ,  H04L49/9036 ,  H04L65/4084 ,  H04L65/605 ,  H04L67/2842 ,  H04L67/2847 ,  H04N21/2225 ,  H04N21/23106 ,  H04N21/44004 ,  H04N21/6375

Abstract: Aspects of present disclosure include devices within a transmission path of streamed content forwarding received data packets of the stream to the next device or "hop" in the path prior to buffering the data packet at the device. In this method, typical buffering of the data stream may therefore occur at the destination device for presentation at a consuming device, while the devices along the transmission path may transmit a received packet before buffering. Further, devices along the path may also buffer the content stream after forwarding to fill subsequent requests for dropped data packets of the content stream. Also, in response to receiving the request for the content stream, a device may first transmit a portion of the contents of the gateway buffer to the requesting device to fill a respective buffer at the receiving device.

公开(公告)号：WO2021145991A1

公开(公告)日：2021-07-22

申请号：PCT/US2020/064749

申请日：2020-12-14

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： HARAR, Amir ,  HAIMOVICH, Tomer ,  ARGOETY, Itay

IPC: G06F21/55 ,  G06F21/62 ,  H04L29/06 ,  H04L29/08 ,  G06F11/3433 ,  G06F12/0877 ,  G06F2009/4557 ,  G06F21/552 ,  G06F21/6218 ,  G06F2212/1041 ,  G06F9/5033 ,  G06F9/505 ,  G06F9/5061 ,  G06F9/5083 ,  H04L63/1408 ,  H04L67/1002 ,  H04L67/2847

Abstract: Distributed computing system (DCS) performance is enhanced by caching optimizations. The DCS includes nodes with local caches. Resource accessors such as users are clustered based on their similarity, and the clusters are assigned to nodes. Then processing workloads are distributed among the nodes based on the accessors the workloads implicate, and based on which nodes were assigned to those accessors' clusters. Clustering may place security peers together in a cluster, and hence place peers together on a node. Security peers tend to access the same resources, so those resources will more often be locally cached, improving performance. Workloads implicating peers also tend to access the same resources, such as peers' behavior histories, so those resources will likewise tend to be cached locally, thus optimizing performance as compared for example to randomly assigning accessors to nodes without clustering and without regard to security peer groupings.

公开(公告)号：WO2021253835A1

公开(公告)日：2021-12-23

申请号：PCT/CN2021/074167

申请日：2021-01-28

Applicant: 南京邮电大学

Inventor： 朱琦 ,  单冠捷

IPC: H04L29/08 ,  G06K9/62 ,  H04W28/02 ,  G06K9/6223 ,  H04L67/2847 ,  H04L67/2852

Abstract: 本发明公开了一种基于用户偏好预测的异构网络缓存决策方法。在该方法中，宏基站、小基站和D2D通信并存，考虑到用户的移动性和社会关系影响。首先在用户偏好未知的情况下，采用机器学习的方法根据其请求历史记录预测用户偏好；然后考虑用户的移动性、物理位置关系、社会关系计算平均系统成本，在缓存容量的约束下，以小基站和重要用户的缓存策略为变量，构建了平均系统成本最小化的优化问题，通过求解该问题进行缓存决策。本发明所述方法基于分区拟阵上超模函数的最小化问题求解本发明的最优化问题，在保障次优解性能的前提下，大大减少了缓存决策的计算复杂度，从而通过在小基站和重要用户处缓存来大大减少系统成本。

公开(公告)号：WO2021242839A1

公开(公告)日：2021-12-02

申请号：PCT/US2021/034217

申请日：2021-05-26

Applicant: SONY INTERACTIVE ENTERTAINMENT INC. ,  HAGLAND, Torgeir

Inventor： HAGLAND, Torgeir

IPC: H04W4/02 ,  H04W4/029 ,  H04W24/08 ,  H04L29/08 ,  A63F13/355 ,  A63F13/358 ,  A63F13/216 ,  A63F13/35 ,  G01S19/42 ,  H04L43/0811 ,  H04L43/16 ,  H04L65/403 ,  H04L65/4069 ,  H04L65/80 ,  H04L67/10 ,  H04L67/18 ,  H04L67/2847 ,  H04W4/027 ,  H04W4/20

Abstract: Methods and systems are provided for providing preemptive actions for predicted data loss during connected gaming using mobile client devices. One example method includes receiving, by a server, data loss from a plurality of mobile client devices. The data loss is used to construct a data loss map that indicates connection quality between said plurality of mobile client devices to the server. The connection quality identifying geolocation data for said plurality of mobile client devices for constructing and updating said data loss map. The method includes receiving, by the server, navigation data for a mobile client device while streaming gameplay from the server. The navigation data is used to identify a route of travel for said mobile client device. The method includes identifying, by the server, a predicted data loss event for the mobile device client. The predicted data loss event is identified using the data loss map and tracking movement of said mobile device client along the route of travel. The method includes sending, by the server, notification data for the predicted data loss event to the mobile client device. The notification data is used for adjusting activity of said gameplay at the mobile client device before reaching a geo-location associated with the predicted data loss event.