Adaptive UL-DL TDD configurations in a heterogeneous network

摘要

Technology for adapting uplink-downlink (UL-DL) time-division duplexing (TDD) subframe configurations in a heterogeneous network (HetNet) is disclosed. One method can include a reference enhanced Node B (eNB) determining a preferred adaptive UL-DL configuration. The eNB can receive node configuration information for at least one neighboring node. The eNB can reconfigure an adaptive UL-DL configuration for at least one of the reference eNB and the at least one neighboring node based on the node configuration information and sounding reference signal (SRS) subframe scheduling of the reference eNB and the at least one neighboring eNB.

主权项

1. A method for adapting uplink-downlink (UL-DL) time-division duplexing (TDD) subframe configurations in a heterogeneous network (HetNet), said method comprising:
calculating a preferred adaptive UL-DL configuration; receiving, at a reference enhanced Node B (eNB), node configuration information for at least one neighboring node; reconfiguring an adaptive UL-DL configuration for at least one of the reference eNB and the at least one neighboring node to correspond with the preferred adaptive UL-DL configuration, the adaptive UL-DL configuration being reconfigured based on the node configuration information and sounding reference signal (SRS) subframe scheduling of the reference eNB and the at least one neighboring node; sending, from the reference eNB, the adaptive UL-DL reconfiguration to the at least one neighboring node; and scheduling UL data, DL data, and SRS transmissions at the reference eNB based on the adaptive UL-DL reconfiguration.