| 摘要 |
FIGs. 3A-3F illustrate a method in a radio communications system of measuring signal quality from a remote unit having a voice operated transmitter (VOX) to execute a handoff of the remote unit. The signal quality of a signal received from the remote unit at a fixed station is measured (422, 424, 426, 428, 452, 454, 456, 458) to determine whether a handoff is to be conducted based upon said signal quality of the signal received from the remote unit. If so required, a handoff request is then sent from the fixed station to at least one surrounding fixed station. In response thereto, an audit request is transmitted (438) to the remote unit from said fixed station. In response to said audit request, a response signal (503) is transmitted at the remote unit for a predetermined period of time. A measurement of signal quality of said response signal is made (454, 456, 458) from said remote unit after said audit request transmission at the at least one surrounding fixed station. The remote unit is then handed-off from the fixed station to the at least one surrounding fixed station. <IMAGE> <IMAGE> <IMAGE> <IMAGE> <IMAGE> <IMAGE> |
