Inter-cell coordination in cellular deployment

摘要

A method and system for determining whether to apply an inter-cell coordination procedure for a UE in the presence of inter-cell interference from cells, the cells including a serving cell and a plurality of interfering cells, are disclosed. According to one aspect, a method includes receiving measurements of uplink signal quality of the UE from the cells. The method also includes calculating a combined metric based on the received uplink signal quality measurements. The combined metric is compared to a serving cell threshold to determine whether to implement the inter-cell coordination procedure.

主权项

1. A base station serving a user equipment, UE, via a serving cell and a plurality of neighboring cells, the base station comprising:
a communication interface configured to receive a UE signal quality measurement report; a memory configured to store:
a combined metric computed at the base station;a UE signal quality measurement report from the UE and transmitted to the base station; anda serving cell threshold; and computational circuitry in operative communication with the memory and the communication interface, the computational circuitry configured to:
calculate a signal to interference ratio, SIR, experienced by the UE based on received uplink signal quality measurements at the serving cell and the neighboring cells;calculate a UE signal quality metric based on the UE signal quality measurement report;calculate the combined metric based on the estimated SIR, the UE signal quality metric and a scaling parameter; andcompare the combined metric to the serving cell threshold to determine whether to implement an inter-cell coordination procedure.