Uplink data transmission with interference mitigation

摘要

Systems and methods providing uplink coordinated multi-point (CoMP) communication are shown. A second cell may identify at least one first UE communicating with a first cell and capable of causing high uplink interference to the second cell. The second cell may estimate uplink interference from the at least one first UE at the second cell. The second cell may estimate uplink interference on specific resources. For example, the second cell may determine resources assigned to the at least one first UE for data transmission to the first cell (e.g., using pre-scheduling information provided by the first cell) and estimate uplink interference from the at least one first UE on the resources assigned to the at least one first UE. The second cell may schedule at least one second UE for uplink data transmission to the second cell based on the estimated uplink interference from the at least one first UE.

主权项

1. A method for wireless communication, comprising:
receiving, from a first cell, user equipment (UE) pilot information, the UE pilot information including information regarding pilot signal transmission by one or more UEs of a first UE group, wherein the one or more UEs of the first UE group are in communication with the first cell; monitoring, by a second cell, pilot signal transmission by the one or more UEs of the first UE group using information included in the UE pilot information; determining at least one UE of the one or more UEs of the first UE group capable of causing high uplink interference to the second cell based at least in part on the monitored pilot signal transmission; receiving, from the first cell, uplink pre-scheduling information for the at least one UE capable of causing high uplink interference to the second cell, wherein the uplink pre-scheduling information comprises information regarding uplink traffic resource assignments for the at least one UE capable of causing high uplink interference to the second cell prior to an actual uplink traffic resource assignment grant having been made to the at least one UE capable of causing high uplink interference to the second cell; and scheduling, by the second cell, one or more UE of a second UE group for uplink communication with the second cell based at least in part upon the received uplink pre-scheduling information.