Coordinated scheduling for time division duplex network

摘要

The invention relates to Coordinated Scheduling for a Time Division Duplex (TDD) network. In a method for User Equipment (UE) scheduling by a base station in a TDD network, the base station receives scheduling decision from at least one neighboring cell of the base station, and schedules a UE among a plurality of UEs in the serving cell of the base station based on the scheduling decision from the at least one neighboring cell and based on smart antenna information. The inter-cell interference is suppressed and therefore the network performance is improved.

主权项

1. A method for User Equipment (UE) scheduling by a base station in a Time Division Duplex (TDD) network comprising:
receiving a scheduling decision for a time slot from at least one neighboring cell of the base station; and scheduling a UE among a plurality of UEs for the time slot in a serving cell of the base station based on the scheduling decision received from the at least one neighboring cell and based on smart antenna information, wherein the smart antenna information includes at least one of:
Serving and Neighboring cell Path Loss ratio (SNPL) of the plurality of UEs in the serving cell; andAngle of Arrival (AOA) of the plurality of UEs in the serving cell and at least one UE to be scheduled in the at least one neighboring cell by the scheduling decision, wherein the AOA of the at least one UE in the at least one neighboring cell to be scheduled by the scheduling decision is obtained by:
receiving Reference Symbol (RS) sequences of the at least one UE, in the at least one neighboring cell to be scheduled by the scheduling decision via cell coordination or base band pool; andestimating the AOA of the at least one UE in the at least one neighboring cell to be scheduled by the scheduling decision with its respective RS sequences, and wherein the AOA of the plurality of UEs in the serving cell is obtained by estimating the AOA of the plurality of UEs in the serving cell with their respective RS sequences.