Interference suppression for cellular networks

摘要

A framework for enabling a user equipment (UE) to apply interference suppression processing during network conditions that are favorable to interference suppression or that are known is provided. The framework includes an interference suppression (IS) time and frequency (time/frequency) zone, which can be scheduled by a serving base station and signaled to the UE. In an embodiment, the serving base station coordinates with the interfering base station(s) to create a network condition favorable to interference suppression at the UE during the IS time/frequency zone. In another embodiment, the serving base station opportunistically schedules the IS time/frequency zone for the UE whenever it determines favorable transmission parameters being used or scheduled for use by the interfering base station(s). The UE applies interference suppression processing within the IS time/frequency zone, thereby improving receiver performance. Outside the time/frequency zone, the UE may disable interference suppression processing so as not to degrade receiver performance.

主权项

1. A method to assist a user equipment served by a serving base station to suppress interference from an interfering base station, comprising:
setting transmission parameters of the interfering base station in a scheduled time and frequency (time/frequency) zone to enhance interference suppression by the user equipment in the scheduled time/frequency zone, wherein the transmission parameters include a long-term evolution (LTE) standard defined transmission mode (TM) of the interfering base station that is set in the scheduled time/frequency zone based on an LTE standard defined TM of the serving base station in the scheduled time/frequency zone; and signaling the scheduled time/frequency zone to the user equipment to enable the user equipment to apply interference suppression processing to a signal received in the scheduled time/frequency zone.