Radio communication system, radio base station, and base station parameter-adjustment method

摘要

A radio base station (eNB1) receives load information indicating the load level of different radio base station (eNB2) and adjusts a base station parameter, which is used for defining coverage, in accordance with a result of comparison between the load level of the radio base station (eNB1) and that of the different radio base station (eNB2). The radio base station (eNB1) corrects at least one of the load level of the radio base station (eNB1) and that of the different radio base station (eNB2), which are compared with each other, in accordance with a number of radio terminals connected to the radio base station (eNB1).

主权项

1. A radio communication system comprising:
a first radio base station configured to transmit a first load level of the first radio base station; and a second radio base station configured to:
measure a second load level of the second radio base station, wherein the second load level includes a first value that is a usage of PRBs (Physical Resource Blocks) being units for time-frequency resource allocation, a second value that is a load of backhaul between the first radio base station and a core network, a third value that is a hardware load of the first radio base station, and a fourth value that is related to a communication capacity of the first radio base station;detect a number of radio terminals connected to the second radio base station;modify the measured second load level on the basis of the detected number, wherein the modified second load level is not the actual load level of the second radio base station, wherein the larger the detected number, the higher the controller modifies the measured second load level, and the smaller the detected number, the lower the controller modifies the measured second load level, andreceive the first load level of the first radio base station; whereinthe second radio base station is further configured to adjust a base station parameter defining coverage, according to a result of comparison between the first load level and the modified second load level.