Systems and methods for historical signal interference cancellation (SIC)

摘要

Historical decoding in accordance with signal interference cancellation (SIC) or joint processing may reduce the amount of data that is re-transported across a network following an unsuccessful attempt to decode a data transmission. In one example, historical decoding is performed in accordance with interference cancellation by communicating information related to interfering data (rather than information related to serving data) following a served receiver's unsuccessful attempt to decode an interference signal. The information related to the interfering data may be the information bits carried by the earlier interfering data transmission or parity information (e.g., forward error correction (FEC) bits, etc.) related to the earlier interfering data transmission.

主权项

1. A method comprising:
sending, by a base station, a serving data transmission to a user equipment (UE) at a first time-frequency instance of a scheduled environment; receiving, by the base station, a request from the UE for information related to an interfering data transmission, wherein the serving data transmission sent by the base station collided with an interfering data transmission during the first time-frequency instance, creating an interference signal, the interfering data transmission and the serving data transmission originating from different transmit points, and the interfering data transmission being intended for a different receiving device than the serving data transmission; and sending during a second time-frequency instance, by the base station in response to the request, information related to the interfering data transmission, wherein the interference signal is decoded by the UE using the information related to the interfering data transmission to obtain data carried by the serving data transmission.