RELAYING UNICAST AND MULTICAST DATA IN A WIRELESS NETWORK

摘要

A relay node for a wireless network is configured for transmissions on the basis of a radio frame with a plurality of subframes. The relay node includes a first relay path and a second relay path. The first relay path is configured to receive, in a first subframe of the subframes, first unicast transmission signals, to decode the first unicast transmission signals to obtain unicast data, and to forward the decoded unicast data by sending second unicast transmission signals in a second subframe of the subframes. The second relay path is configured to receive, in a third subframe of the subframes, multicast transmission signals, to amplify the received multicast transmission signals, and to send the amplified multicast transmission signals in the third subframe. The relay node may switch between the first relay path and the second relay path in order to implement a hybrid Decode-and-Forward and Amplify-and-Forward relaying operation.

主权项

1. A method of relaying data in a wireless network comprising a relay node configured for transmissions on the basis of a radio frame with a plurality of subframes, the method comprising:
the relay node receiving, in a first subframe of the subframes, first unicast transmission signals; the relay node decoding the first unicast transmission signals to obtain unicast data; the relay node forwarding the decoded unicast data by sending second unicast transmission signals in a second subframe of the subframes; the relay node receiving control data from the base station; the relay node determining, on the basis of the received control data, that the base station uses a third subframe of the subframes for a multicast transmission; and in response to determining that the base station uses the third subframe for a multicast transmission, the relay node receiving, in the third subframe, multicast transmission signals from the base station, amplifying the multicast transmission signals, and synchronously with the multicast transmission signals from the base station, sending the amplified multicast transmission signals in the third subframe.