| 摘要 |
A system and method for assisting user devices (108, 109) in performing OFDMA downlink interference cancellation, comprising:
an interfering base station (100) transmitting a downlink signal in a first slot and a second slot, both slots including cell reference signals, CRSs, for physical channel estimation;
modifying the CRS of the second slot to indicate encoded values of parameters characterizing the physical channel according to an encoding procedure,
receiving the slots by a served user device (108) which detects the parameters of the physical channel as carried by dedicated control signalling and encodes them by the encoding procedure, reconstructing an unchanged CRS;
receiving the slots by an interfered user device (109) which obtains the encoded values and compares them with parameter patterns indicating absence of modifications in the CRSs, so, if the encoded values are different from the patterns,
the interfered user device (109) decodes them to perform interference cancellation of the downlink signal. |
