Telefonaktiebolaget Lm Ericsson (publ)

Nancy Ye

Jinyang Xie

Jie Ling

Lily Liang

A method is described that is executed by a computer system implementing a hypertext transfer protocol (HTTP) to enable serving media files by streaming over HTTP. The method is constructed to enable serving media files that are segmented from multiple sources using switch access points defined in a switch access point (SAP) file. The SAP files define transition points in the serving of the media files between different media file sources. The method includes a set of steps such as determining a media meta file or media segment files for a SAP file. The requested media meta file or media segment files are sent to the client. A request for a SAP file is then received from the client. The SAP file request is redirected to a second HTTP server in response to the SAP file indicating the next media segment file identified by the SAP file is not local.

System and method of a link surfed http live streaming broadcasting system

The present disclosure relates to a methodperformed in a broadcast multicast service center, BM-SC, nodefor providing an on-request service to an end-user device. The methodcomprises obtaining, from a content delivery node, the size of a file of the on-request service; determining (), based on the obtained file size, one or more parameters related to encoding of the file, thereby establishing a virtual partitioning of the file into a number Z of source blocks; downloading, from the content delivery node, a source block of the file according to the determined one or more parameters; encodingthe source block of the file into encoding symbols according to the determined one or more parameters; and providingthe encoding symbols for delivery to the end-user device. The disclosure also relates to a BM-SC node, computer programs and computer program products.

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Shanghai, China

Nancy Ye