公开(公告)号：US20160164966A1

公开(公告)日：2016-06-09

申请号：US15005052

申请日：2016-01-25

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Ibtissam El Khayat ,  Pierre Lepropre

IPC: H04L29/08

CPC classification number: H04L67/104 ,  H04L67/02 ,  H04L67/1044 ,  H04L67/1063 ,  H04L67/1068 ,  H04L67/108

Abstract: A first peer device receives distinct first and second metadata. The first metadata includes a common identifier having a one-to-one relationship with a common data piece of a data entity. The common data piece is common to the first peer device, a second peer device, and a third peer device. The second metadata includes one or more non-common identifiers. Each of the one or more non-common identifiers has a one-to-one relationship with a non-common data piece of the data entity that is common to a group of peer devices including the first peer device and excluding the third peer device. The first peer device also receives a third identifier from the second peer device. The first peer device determines whether the second peer device is in the group of peer devices based on whether the third identifier is included in the one or more non-common identifiers.

Abstract translation: 第一对等设备接收不同的第一和第二元数据。 第一元数据包括与数据实体的公共数据段具有一对一关系的公共标识符。 公共数据段对于第一对等设备，第二对等设备和第三对等设备是通用的。 第二元数据包括一个或多个非常见标识符。 所述一个或多个非公共标识符中的每一个与所述数据实体的非公共数据段具有一对一的关系，所述数据实体对于包括所述第一对等设备并且排除所述第三对等设备的对等设备组是共同的。 第一对等设备还从第二对等设备接收第三标识符。 第一对等设备基于第三标识符是否包括在一个或多个非公共标识符中来确定第二对等设备是否在对等设备组中。

公开(公告)号：US10440084B2

公开(公告)日：2019-10-08

申请号：US14765770

申请日：2013-09-30

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Thorsten Lohmar ,  Ibtissam El Khayat

IPC: H04L29/06

Abstract: A technique for detecting an encoder functionality issue in a media distribution system is presented. In the media distribution system consecutive media segments generated by an encoder are transmitted to a media client, and media descriptions describe expected availability times of media segments for the media client. A method implementation of the technique comprises the step of monitoring an availability time of a media segment compared to an expected availability time of the media segment, wherein the expected availability time is described by, or derived from, a media description. The method further comprises determining whether a deviation of the monitored availability time of the media segment from the expected availability time of the media segment is present, and detecting the encoder functionality issue based on a result of the determination. The encoder functionality issue may comprise one or more of an encoder restart, an encoder malfunction and an encoder time drift.

公开(公告)号：US09277372B2

公开(公告)日：2016-03-01

申请号：US14259570

申请日：2014-04-23

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Thorsten Lohmar ,  Ibtissam El Khayat ,  Ryan Fitzgerald ,  Michael John Slssingar

IPC: H04N7/173 ,  H04W4/06 ,  H04W72/00 ,  H04W4/02

CPC classification number: H04W4/06 ,  H04W4/02 ,  H04W72/005

Abstract: The present disclosure relates to a technique for scheduling a point-to-multipoint (PTM) transmission of content data, provided by a content provider node, to a plurality of mobile terminals in a PTM-enabled network. A method embodiment comprises the steps of: receiving, by a PTM transmission control node, delivery schedule information from the content provider node, the delivery schedule information indicating a delivery time at which at least a portion of the content data is to be receivable by the plurality of mobile terminals; and determining, by the PTM transmission control node, a transmission start time for starting the transmission of the content data to one or more of the plurality of mobile terminals located in a service area of the PTM transmission control node, wherein the transmission start time is determined based on the delivery time and one or more system delay parameters.

Abstract translation: 本公开涉及一种用于将由内容提供商节点提供的内容数据的点对多点（PTM）传输调度到启用PTM的网络中的多个移动终端的技术。 一种方法实施例包括以下步骤：由PTM传输控制节点接收来自内容提供商节点的传送时间表信息，所述传送时间表信息指示内容数据的至少一部分可由其接收的传送时间 多个移动终端; 以及由所述PTM传输控制节点确定用于开始将所述内容数据发送到位于所述PTM传输控制节点的服务区域中的所述多个移动终端中的一个或多个的传输开始时间，其中，所述传输开始时间为 基于递送时间和一个或多个系统延迟参数确定。

公开(公告)号：US20150172340A1

公开(公告)日：2015-06-18

申请号：US14414494

申请日：2013-01-11

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Thorsten Lohmar ,  Ibtissam El Khayat

IPC: H04L29/06

CPC classification number: H04L65/4076 ,  H04L65/1083 ,  H04N21/2393 ,  H04N21/2401 ,  H04N21/2407 ,  H04N21/26208 ,  H04N21/8456

Abstract: A technique for operating a client device (100) adapted to receive from a server device (200) via a broadcast communication network (102) a media stream comprising individual media segments is described. A method aspect of that technique comprises: determining first availability information, the first availability information indicating a predicted availability of one or more media segments (906) of a first media stream or a first part of the first media stream at the client device (100); determining, based on the first availability information and for at least one media segment of the first media stream or the first part of the first media stream received at the client device (100), a difference between the predicted availability and an actual availability at the client device (100); and transmitting difference information reflecting the determined difference for the at least one media segment to the server device (200).

Abstract translation: 描述了适于经由广播通信网络（102）从服务器设备（200）接收包括各个媒体段的媒体流的客户端设备（100）的技术。 该技术的方法方面包括：确定第一可用性信息，第一可用性信息指示客户端设备（100）处的第一媒体流或第一媒体流的第一部分的一个或多个媒体片段（906）的预测可用性 ）; 基于所述第一可用性信息和所述第一媒体流的至少一个媒体片段或在所述客户端设备（100）处接收的所述第一媒体流的所述第一部分，确定所述预测可用性与所述第一媒体流的实际可用性之间的差异 客户端设备（100）; 以及将反映所确定的所述至少一个媒体段的差异的差分信息发送到所述服务器设备（200）。

公开(公告)号：US09712585B2

公开(公告)日：2017-07-18

申请号：US14442334

申请日：2013-11-12

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ)

Inventor： Thorsten Lohmar ,  Ibtissam El Khayat

IPC: H04L29/06

CPC classification number: H04L65/60 ,  H04L65/4076 ,  H04L65/4084 ,  H04L65/80

Abstract: The invention relates to techniques for providing media content in a broadcast scenario to a streaming player, like a DASH player. In order to compensate a problem of variable segment sizes, which leads to the variation in the reception intervals of the media segments, it is proposed to estimate the segment availability time for requesting sub-sequent media segments. The estimation considers a correction value compensating the variation in a reception intervals of media segments so that the streaming player receives the media segments at a constant time interval, namely at the segment duration. In one embodiment it is proposed to use the value of the minBufferTime from the MPDfile, The min BufferTime is namely an indication of the varying segment size of the media content. The minBufferTime indicates the time needed for buffering a media content before starting playing out said media content. The estimation may be done on the client, user equipment UEor on the server device side. If the US is correcting the segment availability, then the UE uses the time of a first segment reception as base. If the serveris correcting the segment availability then it uses the original segment avail-ability time at the server as base plus end-to-end delay.

公开(公告)号：US20140325580A1

公开(公告)日：2014-10-30

申请号：US14259570

申请日：2014-04-23

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Thorsten Lohmar ,  Ibtissam El Khayat ,  Ryan Fitzgerald ,  Michael John Slssingar

IPC: H04N21/6405 ,  H04N21/458

CPC classification number: H04W4/06 ,  H04W4/02 ,  H04W72/005

Abstract: The present disclosure relates to a technique for scheduling a point-to-multipoint (PTM) transmission of content data, provided by a content provider node, to a plurality of mobile terminals in a PTM-enabled network. A method embodiment comprises the steps of: receiving, by a PTM transmission control node, delivery schedule information from the content provider node, the delivery schedule information indicating a delivery time at which at least a portion of the content data is to be receivable by the plurality of mobile terminals; and determining, by the PTM transmission control node, a transmission start time for starting the transmission of the content data to one or more of the plurality of mobile terminals located in a service area of the PTM transmission control node, wherein the transmission start time is determined based on the delivery time and one or more system delay parameters.

Abstract translation: 本公开涉及一种用于将由内容提供商节点提供的内容数据的点对多点（PTM）传输调度到启用PTM的网络中的多个移动终端的技术。 一种方法实施例包括以下步骤：由PTM传输控制节点接收来自内容提供商节点的传送时间表信息，所述传送时间表信息指示内容数据的至少一部分可由其接收的传送时间 多个移动终端; 以及由所述PTM传输控制节点确定用于开始将所述内容数据发送到位于所述PTM传输控制节点的服务区域中的所述多个移动终端中的一个或多个的传输开始时间，其中，所述传输开始时间为 基于递送时间和一个或多个系统延迟参数确定。

公开(公告)号：US10320899B2

公开(公告)日：2019-06-11

申请号：US15005052

申请日：2016-01-25

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Ibtissam El Khayat ,  Pierre Lepropre

IPC: H04L29/08

Abstract: A first peer device receives distinct first and second metadata. The first metadata includes a common identifier having a one-to-one relationship with a common data piece of a data entity. The common data piece is common to the first peer device, a second peer device, and a third peer device. The second metadata includes one or more non-common identifiers. Each of the one or more non-common identifiers has a one-to-one relationship with a non-common data piece of the data entity that is common to a group of peer devices including the first peer device and excluding the third peer device. The first peer device also receives a third identifier from the second peer device. The first peer device determines whether the second peer device is in the group of peer devices based on whether the third identifier is included in the one or more non-common identifiers.

公开(公告)号：US20170272899A1

公开(公告)日：2017-09-21

申请号：US15610824

申请日：2017-06-01

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Ibtissam El Khayat ,  Heiko Perkuhn

IPC: H04W4/00 ,  H04L29/08 ,  H04W4/02 ,  H04W4/08 ,  H04W84/18

CPC classification number: H04W4/80 ,  H04L67/1063 ,  H04L67/1072 ,  H04L67/18 ,  H04W4/023 ,  H04W4/08 ,  H04W84/18

Abstract: To control content distribution to plural mobile entities, a device for managing the distribution of the content may determine mobile entities which participate in sharing the same content and which are located in the same region. The mobile entities respectively have a first interface for communication with a mobile communication network and a second interface for forming an ad-hoc network with another mobile entity. A message indicating at least one peer address of a peer mobile entity may be selectively transmitted to a mobile entity. The peer address allows the mobile entity to retrieve at least a piece of the content over the second interface from another mobile entity.