Title:
A communication apparatus and a correspondence procedure.
Document Type and Number:
Japanese Patent JP6031518
Kind Code:
B2
Abstract:
A method of communicating data between a base station and a plurality of terminal devices in a wireless telecommunications system is described. The method comprises transmitting data from the base station to the plurality of terminal devices in a multicast transmission and transmitting response signals from the terminal devices to the base station to indicate whether or not the respective terminal devices have successfully received the multicast transmission. The use of a multicast transmission provides an efficient mechanism for communicating the same data to a plurality of terminal device, for example as might be desired in a machine-type communication network. In combination with this, the use of individual response signals, such as ACK/NACK signalling, from the terminal devices allows the base station, or other entity, to track which terminal devices have indicated successful receipt of the multicast transmission, and to instigate an appropriate re-transmission protocol accordingly.
Inventors:
Morioka Yuichi
Barrett Stefan John
Young Phil
Beer martin
Barrett Stefan John
Young Phil
Beer martin
Application Number:
JP2014526545A
Publication Date:
November 24, 2016
Filing Date:
August 10, 2012
Export Citation:
Assignee:
SCA IP Holdings Inc.
International Classes:
H04W4/06; H04B7/02; H04J11/00; H04W28/04; H04W72/12
Domestic Patent References:
| JP2010515332A | ||||
| JP2009247026A | ||||
| JP2008530896A | ||||
| JP2008199612A |
Foreign References:
| US20070071025 | ||||
| US20090323577 | ||||
| WO2009133629A1 | ||||
| WO2010022070A1 | ||||
| WO2011100479A1 | ||||
| US20110044223 | ||||
| US20140036820 | ||||
| WO2005004361A1 |
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto