Method and apparatus for providing unicast-based multimedia service

Patent metadata

Field	Value
Publication number	US-2018310139-A1
Application number	US-201615767897-A
Country	US
Kind code	A1
Filing date	Oct 13, 2016
Priority date	Oct 13, 2015
Publication date	Oct 25, 2018
Grant date	—

Abstract

A method for providing a multimedia service based on unicast, according to the present invention, comprises the steps of: packetizing multimedia data; when a terminal accesses the multimedia service, determining a mode for transmitting the multimedia data to the terminal; generating a signaling message including information on the determined mode, and transmitting the signaling message to the terminal; and transmitting first data among the packetized multimedia data to the terminal on the basis of the determined mode.

First claim

1 . A method for providing a multimedia service based on unicast, the method comprising:
packetizing multimedia data; determining a mode for transmitting the multimedia data to a user equipment (UE) if the UE accesses the multimedia service; and generating a signaling message comprising information about the determined mode, transmitting the signaling message to the UE, and transmitting first data of the packetized multimedia data to the UE based on the determined mode.

2 . The method of claim 1 , wherein the mode comprises a first mode for using different scheduling for a different UE and a second mode for using the same scheduling for all UEs.

3 . The method of claim 2 , further comprising, if the determined mode is the second mode;
after transmitting the first data based on the second mode, generating a signaling message for switching the mode from the second mode into the first mode and transmitting the signaling message to the UE; and transmitting second data of the packetized multimedia data to the UE based on the first mode.

4 . The method of claim 1 , wherein the determining of the mode comprises determining the mode based on at least one of a bandwidth needed for transmission of the multimedia data, an available bandwidth, a time when transmission of the multimedia data to the UE is possible, and a size of a decoding buffer of the UE.

5 . The method of claim 2 , wherein the signaling message comprises information about a maximum size of a de jitter buffer of the UE and information about a delay time between a server and the UE, and
if the determined mode is the second mode, the maximum size of the de jitter buffer is determined based on a time unit length of the multimedia data and a time needed for transmitting the multimedia data in the second mode.

6 . An apparatus for providing a multimedia service based on unicast, the apparatus comprising:
a controller configured to determine a mode for transmitting the multimedia data to a user equipment (UE) if the UE accesses the multimedia service; a packet generator configured to packetize multimedia data and to generate a signaling message comprising information about the determined mode, under control of the controller; and a packet transmitter configured to transmit the signaling message to the UE and to transmit first data of the packetized multimedia data to the UE based on the determined mode, under control of the controller.

7 . The apparatus of claim 6 , wherein the mode comprises a first mode for using different scheduling for a different UE and a second mode for using the same scheduling for all UEs.

8 . The apparatus of claim 7 , wherein if the determined mode is the second mode, the controller is further configured to generate a signaling message for switching the mode from the second mode into the first mode and to transmit the signaling message to the UE after transmitting the first data based on the second mode, and to transmit second data of the packetized multimedia data to the UE based on the first mode.

9 . The apparatus of claim 6 , wherein the controller is further configured to determine the mode based on at least one of a bandwidth needed for transmission of the multimedia data, an available bandwidth, a time when transmission of the multimedia data to the UE is possible, and a size of a decoding buffer of the UE.

10 . The apparatus of claim 7 , wherein the signaling message comprises information about a maximum size of a de jitter buffer of the UE and information about a delay time between a server and the UE, and
if the determined mode is the second mode, the maximum size of the de jitter buffer is determined based on a time unit length of the multimedia data and a time needed for transmitting the multimedia data in the second mode.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Yang Hyun-Koo
• Park Kyung-Mo
• Bae Jae-Hyeon
• So Young-Wan
• Choi Byeong-Doo

Classifications

• H04W56/004

  compensating for timing error of reception due to propagation delay · CPC title

• H04W28/10 Primary

  Flow control {between communication endpoints} · CPC title

• H04W4/08 Primary

  User group management · CPC title

• H04W56/0015

  one node acting as a reference for the others · CPC title

• H04W4/06

  Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services · CPC title