Method and device for user scheduling and managing transmit power in a communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsTae Soo Kwon, Wei Yu, Chang Yong Shin, Chan Soo Hwang
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Abstract
A user scheduling and transmission power controlling method in a hierarchical-cell communication system or a multi-cell communication system, and a device to perform the methods, are provided. Interference may occur between various cells in the hierarchical-cell communication system or the multi-cell communication system, and the interference may be controlled by adjusting transmission power of various cells. The various cells may determine an optimal transmission power based on a cost of a corresponding transmission power. Also, the various cells may serve various users and may propose an optimal user scheduling method.
Claims17
A method of controlling a transmission power, the method comprising:
- receiving information of priority values of respective cells, interference channel information of receivers, and information of a satisfaction of a quality of service demanded by each of the receivers;
- calculating a cost of the transmission power used by a first base station in a first cell to transmit, based on
- a satisfaction of a quality of service demanded by a neighbor receiver in a neighbor cell,
- a derivative of a transmission rate of a neighbor base station to the neighbor receiver in the neighbor cell with respect to the transmission power, and
- the information of the priority values of the respective cells, the interference channel information of the receivers, and the information of the satisfaction of the quality of service demanded by each of the receivers;
- and
- repeatedly updating the transmission power based on the cost.
A method of performing user scheduling and controlling transmission power, the method comprising:
- receiving information of priority values of respective cells, interference channel information of receivers, and information of a satisfaction of a quality of service demanded by each of the receivers;
- calculating a cost of the transmission power used by a first base station in a first cell to transmit, based on
- a satisfaction of a quality of service demanded by a neighbor receiver in a neighbor cell,
- a derivative of a transmission rate of a neighbor base station to the neighbor receiver in the neighbor cell with respect to the transmission power, and
- the information of the priority values of the respective cells, the interference channel information of the receivers, and the information of the satisfaction of the quality of service demanded by each of the receivers;
- repeatedly updating the transmission power based on the cost;
- and
- performing the user scheduling at the updated transmission power to update a first receiver in the first cell.
A non-transitory computer-readable storage medium storing a program that controls a transmission power, the program comprising instructions to cause a processor to:
- receiving information of priority values of respective cells, interference channel information of receivers, and information of a satisfaction of a quality of service demanded by each of the receivers;
- calculating a cost of the transmission power used by a first base station in a first cell to transmit, based on
- a satisfaction of a quality of service demanded by a neighbor receiver in a neighbor cell,
- a derivative of a transmission rate of a neighbor base station to the neighbor receiver in the neighbor cell with respect to the transmission power, and
- the information of the priority values of the respective cells, the interference channel information of the receivers, and the information of the satisfaction of the quality of service demanded by each of the receivers;
- and
- repeatedly updating the transmission power based on the cost.
A communication device comprising:
- a receiving unit configured to receive information of priority values of respective cells, interference channel information of receivers, and information of a satisfaction of a quality of service demanded by each of the receivers,
- wherein the communication device is further configured to calculate a cost of a transmission power used by a first base station in a first cell to transmit, based on
- a satisfaction of a quality of service demanded by a neighbor receiver in a neighbor cell,
- a derivative of a transmission rate of a neighbor base station to the neighbor receiver in the neighbor cell with respect to the transmission power, and
- the information of the priority values of the respective cells, the interference channel information of the receivers, and the information of the satisfaction of the quality of service demanded by each of the receivers, and
- wherein the communication device is further configured to repeatedly update the transmission power based on the cost.
Dependencies are inferred from the claim text.