公开(公告)号：EP3286902A1

公开(公告)日：2018-02-28

申请号：EP16710546

申请日：2016-02-26

Applicant: QUALCOMM INC

Inventor： GHOLMIEH RALPH AKRAM ,  LOTFALLAH OSAMA ,  PAZOS CARLOS MARCELO DIAS ,  NAIK NAGARAJU ,  SHIVASHANKAR NAGARAJA ,  BASSIOUNY NERMEEN AHMED ,  NAGARAJ THADI MANJUNATH

IPC: H04L29/08 ,  H04L29/06 ,  H04N21/24 ,  H04N21/262 ,  H04N21/442 ,  H04N21/6377 ,  H04N21/845

CPC classification number: H04L67/02 ,  H04L47/283 ,  H04L65/4076 ,  H04L65/601 ,  H04L65/602 ,  H04L65/608 ,  H04L65/80 ,  H04L67/04 ,  H04L67/32 ,  H04L67/325 ,  H04L69/28 ,  H04L69/40 ,  H04N21/2402 ,  H04N21/2407 ,  H04N21/2408 ,  H04N21/26258 ,  H04N21/44209 ,  H04N21/6377 ,  H04N21/8456

Abstract: Systems, methods, and devices of the various embodiments enable a receiver device to use a modified segment availability time. In various embodiments, a receiver device may be enabled to modify availability start times for segments in a segment availability timeline, such as a Media Presentation Description (MPD), to account for the actual times when segments will be available to a DASH client.

公开(公告)号：WO2013067219A3

公开(公告)日：2013-07-11

申请号：PCT/US2012063115

申请日：2012-11-01

Applicant: QUALCOMM INC

Inventor： LUBY MICHAEL GEORGE ,  LEUNG NIKOLAI KONRAD ,  GHOLMIEH RALPH AKRAM ,  STOCKHAMMER THOMAS

IPC: H04L29/08 ,  H03M13/37

CPC classification number: H03M13/1102 ,  H03M13/356 ,  H03M13/3761 ,  H04L67/02

Abstract: Data objects are delivered over a packet switched network and receivers receive encoded symbols, such as repair symbols, broadcast or multicast, with sufficient information to form requests for additional symbols as needed based on what source symbols or sub-symbols are needed or missing. The requests can be made in a unicast or request fashion. Requesting and broadcasting might be done by different entities. A broadcast server can generate and store repair symbols while a source server can store content in source form. A request can be a unicast HTTP byte-range request, such as a URL, starting position and length. Requests might be aligned with starting positions of files. A receiver can calculate starting and ending byte positions of symbols or sub-symbols in a file and get indications that conventional HTTP servers are usable for file repair. Repair servers can request broadcast of repair data when byte-range requests from multiple receivers overlap.

Abstract translation: 数据对象通过分组交换网络传送，并且接收机接收具有足够信息的编码符号，如修复符号，广播或多播，以根据需要或根据需要或缺少哪些源符号来形成对附加符号的请求。 请求可以以单播或请求方式进行。 请求和广播可能由不同的实体完成。 广播服务器可以生成和存储修复符号，而源服务器可以以源形式存储内容。 请求可以是单播HTTP字节范围请求，例如URL，起始位置和长度。 请求可能与文件的起始位置一致。 接收器可以计算文件中符号或子符号的开始和结束字节位置，并获得常规HTTP服务器可用于文件修复的指示。 当来自多个接收器的字节范围请求重叠时，修复服务器可以请求广播修复数据。

公开(公告)号：WO2008134447A3

公开(公告)日：2009-04-30

申请号：PCT/US2008061449

申请日：2008-04-24

Applicant: QUALCOMM INC ,  GHOLMIEH RALPH AKRAM ,  CHEN AN MEI ,  DE VICO MICHAEL ,  BALRAJ SAJITH ,  GAO YING

Inventor： GHOLMIEH RALPH AKRAM ,  CHEN AN MEI ,  DE VICO MICHAEL ,  BALRAJ SAJITH ,  GAO YING

IPC: H04H60/32

CPC classification number: H04W48/20 ,  H04H60/32 ,  H04W52/0241 ,  Y02D70/00

Abstract: Methods and apparatus for service acquisition in a broadcast system. In an aspect, a method includes detecting whether a loss of service has occurred, and initiating acquisition attempts during an aggressive acquisition phase if a loss of service has occurred, wherein a backoff time interval between successive acquisition attempts is constant or increased, and wherein the aggressive acquisition phase ends when service acquisition is achieved or a selected number of acquisition attempts have been performed. An apparatus includes interface logic configured to detect whether a loss of service has occurred, and processing logic configured to initiate acquisition attempts during an aggressive acquisition phase if a loss of service has occurred, wherein a backoff time interval between successive acquisition attempts is constant or increased, and wherein the aggressive acquisition phase ends when service acquisition is achieved or a selected number of acquisition attempts have been performed.

Abstract translation: 在广播系统中服务获取的方法和装置。 在一方面，一种方法包括检测是否已经发生服务丢失，以及如果已经发生服务丢失，则在攻击性获取阶段期间开始获取尝试，其中连续采集尝试之间的退避时间间隔是恒定的或增加的，并且其中 当实现服务采集或执行了选定数量的采集尝试时，积极的采集阶段结束。 一种装置，包括：接口逻辑，被配置为检测是否已经发生服务丢失;以及处理逻辑，被配置为：如果已经发生服务丢失，则在攻击性获取阶段期间发起捕获尝试，其中连续采集尝试之间的退避时间间隔是恒定的或增加的 ，并且其中当实现服务获取或已经执行了所选择的获取尝试次数时，所述积极获取阶段结束。