Methods and apparatus for interference management

摘要

Systems and techniques for managing interference between pico cells in a pico cluster. Pico eNodeBs are configured in groups for each of a plurality of UEs, based on factors such as signal to noise ratio and geographic location. All signals from UEs may be measured by all eNodeBs in the cluster, but a pico group decodes packets only of UEs associated with the pico group. Decoded packets are exchanged between pico groups, and when a pico group is unable to decode packets of an associated UE, is uses the decoded packets received in exchanges to reconstruct an interference signal. The interference signal is subtracted from the received signal and the resulting received signal is used to decode the packets of the UE.

主权项

1. An apparatus comprising:
memory; at least one processor; a program of instructions configured to, with the memory and the at least one processor, configure the apparatus to perform actions comprising at least: identify members of a group of virtual cells, with the identification of members of the group being based at least in part on radio signal characteristics, wherein the members of the group act in coordination to interpret and decode transmissions from a user device associated with the apparatus; directing analysis of a transmission from the user device associated with the apparatus to decode packets transmitted by the user device, wherein analyzing the transmission is performed jointly by at least a serving cell and one additional cell; and based on the analysis, delivering decoded baseband packets to at least one other apparatus having at least one other associated user device, wherein delivering the decoded baseband packets is accomplished within a baseband unit or through transfer between multiple baseband units through an aggregator.