| 摘要 |
A controller for coordinating wireless transmissions between a plurality of radio units and one or more user devices, each radio unit having a respective geographic area of coverage, for example, in a distributed antenna system (DAS). The controller signals each each radio unit to broadcast a pilot signal over its respective geographic area of coverage, the pilot signal being designed to elicit a response signal from each user device located within the radio unit's area of coverage. The controller then receives from the radio units information specifying the user devices from which the respective radio unit has received a response signal. The controller is configured to use the information received from the radio units to determine which user devices are located within range of each radio unit. From this information, a matrix is created to assign resources to the radio units to ensure coverage and minimise interference between the radio units. |
