Method and apparatus for intercell uplink interference control

摘要

Wireless user equipment (UE) operating in a wireless communication system may operate in a state, for example, the CELL_FACH state in UMTS, that does not allow for soft handoff from one cell to another. This inability to engage in soft handover may lead to intercell interference at a non-serving cell when the UE transmits on its uplink in close proximity to the non-serving cell. Therefore, provided in the present disclosure is method of wireless communication, which includes receiving a neighbor cell identification set indicating one or more neighbor cells, receiving a relative grant channel resource index corresponding to a relative grant channel shared by at least one of the one or more neighbor cells, detecting intercell interference associated with a user equipment (UE) in the one or more neighbor cells, and transmitting a non-serving relative grant message to the UE on the relative grant channel.

主权项

1. A method of managing intercell interference, comprising:
receiving, at a neighbor cell relative to a serving cell of a user equipment (UE), a neighbor cell identification set indicating one or more neighbor cells, wherein the neighbor cell identification set includes the neighbor cell; detecting, at the neighbor cell, intercell interference associated with UE uplink transmissions to the serving cell; and transmitting, in response to detecting the intercell interference, a non-serving relative grant message to the UE on a relative grant channel shared by a plurality of the one or more neighbor cells, wherein the UE is in a CELL_FACH state.