| 摘要 |
The present application relates to an advanced receiver capable of subtracting co-channel interference. A significant problem of interference cancellation with this advanced receiver, which is capable to cancel other cell interference, is how to obtain information about the scheduled users, i.e. the interferers in neighbouring cell. This knowledge is needed in order to be able to receive the signal from the neighbouring cell for further use in the cancellation process. The interference cancellation can by simplified if e.g. the Radio Network Temporary Identifier RNTI and the Physical Cell Identity PCI would be known because the RNTI informs about the scrambling code to use for decoding the control channel, e.g. PDCCH. Thereby, it can be determined whether the data blocks transmitted to the radio devices in the neighbouring cells collide with the data blocks transmitted to the advanced receiver. Blind decoding of the PDCCHs transmitted in the neighbouring cell is typically not feasible since the device is not aware of which devices are connected to the neighbouring cells, making the cancelling process significantly more complex. The problem is solved by the application in that the advanced receiver (2) does a scan for other radio devices (1) in its proximity via a device-to-device D2D link. Once another radio device (1) is detected, the advanced receiver (2) receives (302) information, which allows it to decode the control channel of the neighbouring cell to which the other radio device is connected. The advanced receiver can then check whether data blocks of the other cell collide with its own data blocks and to perform suppression of these data blocks. |
