公开(公告)号：WO2015031258A1

公开(公告)日：2015-03-05

申请号：PCT/US2014/052530

申请日：2014-08-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： ZHU, Xiaoqing ,  LI, Zhi ,  PAN, Rong ,  GAHM, Joshua, B. ,  HU, Hao

IPC: H04L12/811 ,  H04L29/06 ,  H04L12/825

CPC classification number: H04L65/601 ,  H04L47/25 ,  H04L47/30 ,  H04L47/38 ,  H04L65/60 ,  H04L65/608 ,  H04L67/02

Abstract: In one embodiment, an HTTP streaming session may be initiated at a client device in a network. The client device may have a buffer and may be configured to request and receive one or more data segments over HTTP from an HTTP server. A first data segment at a first data source rate may be requested and subsequently received. The first data segment may be stored in the buffer. A second data source rate may then be calculated based on a storage level in the buffer, and a second data segment at the second data source rate may be requested.

Abstract translation: 在一个实施例中，可以在网络中的客户端设备处发起HTTP流传输会话。 客户端设备可以具有缓冲器，并且可以被配置为通过HTTP从HTTP服务器请求和接收一个或多个数据段。 可以请求并随后接收第一数据源速率的第一数据段。 第一数据段可以存储在缓冲器中。 然后可以基于缓冲器中的存储级别来计算第二数据源速率，并且可以请求具有第二数据源速率的第二数据段。

公开(公告)号：WO2014116449A1

公开(公告)日：2014-07-31

申请号：PCT/US2014/011185

申请日：2014-01-12

Applicant: CISCO TECHNOLOGY, INC.

Inventor： LI, Zhi ,  ZHU, Xiaoqing ,  PAN, Rong ,  GAHM, Joshua B. ,  BEGEN, Ali C. ,  ORAN, David R.

IPC: H04L29/06

CPC classification number: H04L65/4084 ,  H04L65/4092 ,  H04L65/80 ,  H04L67/02

Abstract: A method is provided in one example embodiment and includes receiving media data at an adaptive streaming client; updating an estimated available bandwidth associated with a media stream associated with the media data; filtering the estimated available bandwidth; mapping the filtered estimated available bandwidth to a media bitrate for the media stream; and updating a target segment delay that is to control time intervals between consecutive segment downloads of the media stream.

Abstract translation: 在一个示例实施例中提供了一种方法，并且包括在自适应流客户端处接收媒体数据; 更新与与所述媒体数据相关联的媒体流相关联的估计可用带宽; 过滤估计的可用带宽; 将经滤波的估计可用带宽映射到媒体流的媒体比特率; 以及更新用于控制媒体流的连续段下载之间的时间间隔的目标段延迟。

公开(公告)号：WO2016064610A1

公开(公告)日：2016-04-28

申请号：PCT/US2015/055083

申请日：2015-10-12

Applicant: CISCO TECHNOLOGY, INC.

Inventor： LI, Zhi ,  GAHM, Joshua B. ,  ZHU, Xiaoqing

IPC: H04N21/238 ,  H04L29/06 ,  H04N21/2385 ,  H04N21/2662 ,  H04N21/647 ,  H04N21/845 ,  H04L12/825 ,  H04N21/2343

CPC classification number: H04N21/234381 ,  H04L47/25 ,  H04L65/602 ,  H04L65/605 ,  H04L65/80 ,  H04N21/23439 ,  H04N21/23805 ,  H04N21/2385 ,  H04N21/2662 ,  H04N21/64769 ,  H04N21/8456

Abstract: Various implementations disclosed herein enable a more efficient allocation of one or more shared network resources (e.g., bandwidth, memory, processor time, etc.) amongst a number of client devices based on media content data complexity and client device resource constraints in order to better manage perceptual playback quality of adaptive streaming content. In some implementations, a method includes aligning sequences of one or more temporal segments; and, selecting segment representations for each temporal segment based on a combination of the sequence alignment and perceptual quality level values associated with available segment representations, such that a combination of resulting perceptual quality levels satisfies a joint quality criterion. Each sequence is associated with one of a number of client devices sharing a network resource. The one or more temporal segments of each sequence are used to provide segment representations of media content data to one of the client devices.

Abstract translation: 基于媒体内容数据复杂性和客户机设备资源约束，本文公开的各种实施方式能够在多个客户端设备之间更有效地分配一个或多个共享网络资源（例如，带宽，存储器，处理器时间等），以便更好地 管理自适应流内容的感知回放质量。 在一些实施方式中，一种方法包括对准一个或多个时间段的序列; 以及基于与可用段表示相关联的序列比对和感知质量水平值的组合来选择每个时间段的段表示，使得所得感知质量水平的组合满足联合质量标准。 每个序列与共享网络资源的多个客户端设备之一相关联。 每个序列的一个或多个时间段用于向一个客户端设备提供媒体内容数据的段表示。

公开(公告)号：WO2016014739A1

公开(公告)日：2016-01-28

申请号：PCT/US2015/041651

申请日：2015-07-23

Applicant: CISCO TECHNOLOGY, INC.

Inventor： RAMAKRISHNAN, Sangeeta ,  ZHU, Xiaoqing

IPC: H04L12/24 ,  H04L29/06 ,  H04N21/00

CPC classification number: H04L47/828 ,  H04L41/0896 ,  H04L41/5067 ,  H04L47/25 ,  H04L47/70 ,  H04L47/76 ,  H04L65/00 ,  H04L65/102 ,  H04L65/607 ,  H04L65/80 ,  H04L67/10 ,  H04N21/00 ,  H04N21/234354 ,  H04N21/2401 ,  H04N21/6379

Abstract: Various implementations disclosed herein enable a more efficient allocation of one or more shared network resources amongst a plurality of client devices based on media content complexity and client device resource status in order to better manage perceptual playback quality. In some implementations, a method includes obtaining a plurality of resource constraint values associated with a plurality of client devices sharing a network resource, and jointly determining a respective encoding rate level selection and a corresponding resource allocation for each of the plurality of client devices based on a combination of one or more resource constraint values and the assessment of the respective perceptual quality level values, such that a combination of resulting quality levels satisfies a joint quality criterion.

Abstract translation: 基于媒体内容复杂性和客户端设备资源状态，本文公开的各种实施方式能够在多个客户端设备之间更有效地分配一个或多个共享网络资源，以便更好地管理感知回放质量。 在一些实现中，一种方法包括获得与共享网络资源的多个客户端设备相关联的多个资源约束值，以及基于多个客户端设备的相应的编码速率级别选择和相应的资源分配 一个或多个资源约束值的组合和相应感知质量水平值的评估，使得所得到的质量水平的组合满足联合质量标准。

公开(公告)号：WO2021184039A1

公开(公告)日：2021-09-16

申请号：PCT/US2021/070254

申请日：2021-03-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： SMITH, Malcolm M. ,  ZHU, Xiaoqing ,  HENRY, Jerome

IPC: H04W24/10

Abstract: Techniques for determining a range between a wireless station (STA) and a wireless access point (AP) using channel state information are described. An AP determines channel state information corresponding to an STA. The AP determines, based on the channel state information, one or more fine timing measurement (FTM) parameters. A plurality of FTM messages are transmitted between the AP and the STA, based on the one or more FTM parameters. The STA is configured to determine an estimated range to the AP based on the plurality of FTM messages.

公开(公告)号：WO2016014740A1

公开(公告)日：2016-01-28

申请号：PCT/US2015/041652

申请日：2015-07-23

Applicant: CISCO TECHNOLOGY, INC.

Inventor： RAMAKRISHNAN, Sangeeta ,  ZHU, Xiaoqing

IPC: H04L12/24 ,  H04L29/06

CPC classification number: H04L47/783 ,  H04L41/0896 ,  H04L41/5067 ,  H04L65/00 ,  H04L65/102 ,  H04L65/4084 ,  H04L65/80 ,  H04L67/02 ,  H04L67/104 ,  H04L67/322

Abstract: Various implementations disclosed herein enable client devices to share a network resource in order to produce more evenly distributed perceptual playback quality levels within each subscription tier. Sharing of a network resource is facilitated by providing client devices with one or more QoE distribution indicator values, which enables client device participation in the allocation of the network resource. In some implementations, a client device method includes determining a local QoE level value, and then modifying a representation selection of media content data based on the local QoE and one or more QoE distribution indicator values. The local QoE level value characterizes perceptual playback quality of media content data received by the client device using the shared network resource. The QoE distribution indicator values characterize at least in part the relative QoE values associated with a plurality of client devices sharing the shared network resource with the client device.

Abstract translation: 本文公开的各种实现使得客户端设备能够共享网络资源，以便在每个订阅层内产生更均匀分布的感知回放质量水平。 通过向客户端设备提供一个或多个QoE分发指示符值来促进网络资源的共享，这使得客户端设备可以参与网络资源的分配。 在一些实现中，客户端设备方法包括确定本地QoE级别值，然后基于本地QoE和一个或多个QoE分布指示符值修改媒体内容数据的表示选择。 本地QoE级别值表征由客户端设备使用共享网络资源接收的媒体内容数据的感知回放质量。 QoE分发指示符值至少部分地表征与与客户端设备共享共享网络资源的多个客户端设备相关联的相对QoE值。

公开(公告)号：WO2016014738A1

公开(公告)日：2016-01-28

申请号：PCT/US2015/041650

申请日：2015-07-23

Applicant: CISCO TECHNOLOGY, INC.

Inventor： RAMAKRISHNAN, Sangeeta ,  ZHU, Xiaoqing ,  CHAPMAN, John, T.

IPC: H04L12/24 ,  H04L29/06

CPC classification number: H04L41/5025 ,  H04L41/0896 ,  H04L41/5067 ,  H04L47/76 ,  H04L65/4084 ,  H04L65/60 ,  H04L65/605 ,  H04L65/80

Abstract: Previously known network management methods are incapable of concertedly managing respective levels of perceptual playback quality of media content data for a number client devices. In particular, previously known methods fail to regulate ABR-enabled client devices and the like that are each operating to individually consume as much of one or more shared network resources as possible without regard to the degree performance improvements. By contrast, various implementations disclosed herein provide network-centric concerted management of respective levels of perceptual playback quality of media content data on each of a number of client devices. The respective levels perceptual playback quality are concertedly managed by adjusting one or more shared network resources (e.g., bandwidth, processor time, memory, etc.). Adjustments are made in response to an aggregate quality of experience (QoE) metric characterizing a distribution of QoE levels for the client devices sharing the one or more shared network resources.

Abstract translation: 以前已知的网络管理方法不能一致地管理多个客户端设备的媒体内容数据的感知回放质量的各个级别。 特别地，先前已知的方法不能调节启用ABR的客户端设备等，其各自操作以独立地消耗尽可能多的一个或多个共享网络资源，而不考虑度数性能改进。 相比之下，本文公开的各种实施方案提供了以多个客户端设备的每一个为媒体内容数据的感知回放质量的各层级的网络中心的一致管理。 通过调整一个或多个共享网络资源（例如，带宽，处理器时间，存储器等）来一致地管理各个级别的感知回放质量。 响应于总体体验质量（QoE）度量来表征对于共享一个或多个共享网络资源的客户端设备的QoE级别分配的调整。

公开(公告)号：WO2016014737A1

公开(公告)日：2016-01-28

申请号：PCT/US2015/041649

申请日：2015-07-23

Applicant: CISCO TECHNOLOGY, INC.

Inventor： RAMAKRISHNAN, Sangeeta ,  ZHU, Xiaoqing

IPC: H04L12/24 ,  H04L29/06

CPC classification number: H04L41/5009 ,  H04L41/5035 ,  H04L41/5067 ,  H04L43/0876 ,  H04L65/4084 ,  H04L65/60 ,  H04L65/605 ,  H04L65/80 ,  H04L67/10

Abstract: Previously known network management practices fail to inform network operators about client-side performance and experience issues. By contrast, various implementations disclosed herein include systems, methods and apparatuses that generate one or more shared- resource traffic quality indicator values. Each shared-resource traffic quality indicator value characterizes at least a portion of the network by assessing a number of network performance characterization values in relation to one or more capacity values of one or more shared network resources. Each network performance characterization values provides a corresponding quantitative characterization of a quality of experience associated with the use of media content data received by a respective client device. In some implementations, quality of experience is characterized by at least one of an indication of perceptual quality of media content data and an indication of continuity with which media content data is used by a respective client device at a particular subscription tier.

Abstract translation: 以前已知的网络管理实践未能通知网络运营商客户端性能和体验问题。 相比之下，本文公开的各种实施方案包括生成一个或多个共享资源业务质量指标值的系统，方法和装置。 每个共享资源流量质量指示符值通过评估与一个或多个共享网络资源的一个或多个容量值相关的网络性能表征值的数量来表征网络的至少一部分。 每个网络性能表征值提供与使用由相应客户端设备接收的媒体内容数据相关联的经验质量的相应定量表征。 在一些实现中，体验质量的特征在于，在特定订阅层处，相关客户端设备使用媒体内容数据的感知质量的指示和媒体内容数据的连续性指示中的至少一个。