Network coordination for improved interference cancellation

摘要

Communications by base stations in wireless communication networks may be coordinated in a manner to improve performance by mobile devices experiencing interference from non-serving base stations. In particular, base station communications may be coordinated to improve the performance of interference cancellation by mobile devices. If a user equipment (UE) experiencing interference is capable of interference cancellation, then the base stations may coordinate to increase interference to that user equipment so as to improve that UE's ability to perform interference cancellation. Base stations may also coordinate to reduce interference for a UE, regardless of the UE's ability to perform interference cancellation. Mobile device performance improvements may also be achieved by coordinating scheduling of resources by the non-serving base stations, by using communication formats compatible with interference cancellation, by spatial coordination.

主权项

1. A method of wireless communication, comprising:
determining that a victim user equipment (UE) is experiencing moderate interference from a neighbor base station; determining whether the victim UE is capable of performing interference cancellation; and coordinating with a serving base station to adjust a level of interference experienced by the victim UE in response to the level of interference being:
greater than a first threshold such that the level of interference disrupts performance of the victim UE, andless than a second threshold such that the level of interference cannot be reliably canceled with interference cancellation, wherein when the victim UE is capable of performing the interference cancellation, the level of interference is adjusted by scheduling the victim UE to communicate on at least one resource block with a greater level of interference in comparison to other resource blocks such that the level of interference is increased, an ability of the victim UE to perform interference cancellation being increased based on the increase in the level of interference, and wherein when the victim UE is not capable of performing the interference cancellation, the level of interference is adjusted by decreasing the level of interference.