公开(公告)号：US10547705B2

公开(公告)日：2020-01-28

申请号：US14415522

申请日：2013-07-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jiangwei Xu ,  Sang Jun Moon ,  Young Seok Park ,  Chul Ki Lee ,  Jung Hwan Lim

IPC: G06F15/16 ,  H04L29/08 ,  H04L29/06

Abstract: The present invention relates to a proxy apparatus and to a caching method of same. The caching method of the proxy apparatus according to one embodiment of the present invention includes the steps of: receiving a transmission request for content that can be divided into a plurality of blocks and instruction information for the playback position of the content from an external device; obtaining a header block that includes the header of the content when receiving the transmission request; identifying an intermediate block that corresponds to the playback position using the header; requesting and obtaining the intermediate block through a network when the identified intermediate block is not cached in the proxy apparatus; and transmitting to the external device at least a portion of the header and at least a portion of the intermediate block corresponding to the request. According to one embodiment of the present invention, even in a case where the size of a piece of content is great but only a specific portion is used, an efficient caching method and apparatus can be provided.

公开(公告)号：US20140254557A1

公开(公告)日：2014-09-11

申请号：US14349225

申请日：2012-11-08

Applicant: Sang-Jin KIM ,  SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung Hwan Lim ,  Sang Jun Moon ,  Yong Seok Park ,  Jiangwei Xu ,  Chul Ki Lee

IPC: H04W36/00

CPC classification number: H04W36/0011 ,  H04W36/0055 ,  H04W36/02 ,  H04W88/02

Abstract: A handover method at a source eNB (enhanced Node B) of a mobile communication system is provided. The method includes, in case a request message for providing content is received from UE (User Equipment), checking whether the content is stored in a cache thereof, and therefore transmitting the content to the UE, in case a handover request message is received from the UE, transmitting a content confirmation request message, which requests confirmation of whether the content is stored in a cache, to a target eNB to which the UE is to be handed over, and in case a content confirmation response message is received from the target eNB, transmitting context information, which is information about contents offered to the UE, to the target eNB.

Abstract translation: 提供了移动通信系统的源eNB（增强型节点B）的切换方法。 该方法包括在从UE（用户设备）接收到用于提供内容的请求消息的情况下，检查内容是否被存储在其高速缓存中，并且因此在将内容发送到UE的情况下，在接收到切换请求消息的情况下 所述UE发送内容确认请求消息，所述内容确认请求消息请求确认所述内容是否存储在高速缓存中，所述内容确认请求消息被发送到要切换所述UE的目标eNB，以及在从所述目标接收到内容确认响应消息的情况下 eNB向目标eNB发送作为向UE提供的内容的信息的上下文信息。

公开(公告)号：US20150222725A1

公开(公告)日：2015-08-06

申请号：US14415522

申请日：2013-07-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jiangwei Xu ,  Sang Jun Moon ,  Young Seok Park ,  Chul Ki Lee ,  Jung Hwan Lim

IPC: H04L29/08

CPC classification number: H04L67/2852 ,  H04L67/06 ,  H04L67/1097 ,  H04L67/2842 ,  H04L69/22

Abstract: The present invention relates to a proxy apparatus and to a caching method of same. The caching method of the proxy apparatus according to one embodiment of the present invention includes the steps of: receiving a transmission request for content that can be divided into a plurality of blocks and instruction information for the playback position of the content from an external device; obtaining a header block that includes the header of the content when receiving the transmission request; identifying an intermediate block that corresponds to the playback position using the header; requesting and obtaining the intermediate block through a network when the identified intermediate block is not cached in the proxy apparatus; and transmitting to the external device at least a portion of the header and at least a portion of the intermediate block corresponding to the request. According to one embodiment of the present invention, even in a case where the size of a piece of content is great but only a specific portion is used, an efficient caching method and apparatus can be provided.

Abstract translation: 代理装置及其缓存方法技术领域本发明涉及代理装置及其缓存方法。 根据本发明的一个实施例的代理装置的高速缓存方法包括以下步骤：从外部设备接收可分为多个块的内容的发送请求和用于播放内容的播放位置的指令信息; 当接收到所述传输请求时，获得包含所述内容的报头的报头块; 使用所述报头来识别对应于所述播放位置的中间块; 当所识别的中间块不被高速缓存在代理设备中时，通过网络请求和获取中间块; 以及向所述外部设备发送所述报头的至少一部分以及对应于所述请求的所述中间块的至少一部分。 根据本发明的一个实施例，即使在内容大小很大但仅使用特定部分的情况下，也可以提供有效的高速缓存方法和装置。