Selecting antennas in downlink cooperative scheduling

摘要

It is presented a method for obtaining a set of selected antennas in a mobile communication network, wherein each one of the selected antennas is intended to be used in data transmissions to a first mobile communication terminal. The method is performed in a network node of the mobile communication network and comprises candidate the steps of: obtaining a set of candidate antennas, wherein each one of the candidate antennas is arranged to send out the same cell identifier and at least some of the candidate antennas have different coverage areas; evaluating performance of at least a subset of the candidate antennas in relation to the first mobile communication terminal; and determining a set of selected antennas based on the performance of the candidate performance antennas having been evaluated. A corresponding network node, computer program and computer program product are also presented.

主权项

1. A method for obtaining a set of selected antennas in a mobile communication network, wherein each one of the selected antennas is intended to be used in data transmissions to a first mobile communication terminal, the method being performed in a network node of the mobile communication network and comprising:
obtaining a set of candidate antennas, wherein each one of the candidate antennas is arranged to send out the same cell identifier and at least some of the candidate antennas have different coverage areas; evaluating performance of at least a subset of the candidate antennas in relation to the first mobile communication terminal; and determining a set of selected antennas based on the performance of the candidate antennas having been evaluated; wherein the evaluating performance comprises, for antenna groups each comprising one or more of the candidate antennas; transmitting data using the respective candidate antennas of the antenna group, for one antenna group at a time; and determining a performance related to the transmitted data by evaluating acknowledgement or non-acknowledgement signals, related to the transmitted data, received from the first mobile communication terminal, wherein the obtaining the set of candidate antennas comprises selecting one or more antennas receiving an uplink signal from the first mobile communication terminal, responsive to the uplink signal having a received signal power relative to a threshold value.