Patent ID: 9288786
Filing Date: 2016-03-15
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A method of operating a base station for communicating data in a wireless telecommunications system, the method comprising: transmitting data to a plurality of terminal devices in a multicast transmission; and receiving response signals from respective ones of the terminal devices transmitted in response to the multicast transmission to indicate whether the respective terminal devices have successfully received the multicast transmission, wherein the wireless telecommunications system operates in downlink over a first frequency bandwidth and in uplink over a second frequency bandwidth, and wherein at least one of the multicast transmission is made using downlink transmission resources on frequencies selected from within a third frequency bandwidth which is smaller than and within the first frequency bandwidth, and the response signals from the terminal devices are received using uplink transmission resources on frequencies selected from within a fourth frequency bandwidth which is smaller than and within the second frequency bandwidth.