STATION ASSISTED INTERFERENCE MEASUREMENT

摘要

A station assisted interference measurement scheme is described containing a system and devices that facilitate the measurement of interference levels or path loss values between nearby potentially interfering transmitting transceivers and candidate victim receivers. Such interference levels or path loss values are used to assist intelligent assignment of communication channels in an authorized shared access system (ASAS). Using control signals from a controller of the ASAS, suspected interfering devices transmit specialized signals on specific channels at specific times that may have a waveform and/or bit format different from typically used data communication signals. A candidate victim receiver may receive one or more of the specialized signals and measure a signal parameter of the received specialized signal. The controller of the authorized shared access system uses the measured signal parameters to determine interference between devices and improve the assignment of communication channels to mitigate interference.

主权项

1. A method, comprising steps of:
sending to at least one suspected interfering device a suspected interfering device control signal containing an indication of a specialized signal, a communication channel and a time in which the indicated specialized signal is to be transmitted by the at least one suspected interfering device; sending to at least one candidate victim device in a shared radio frequency spectrum access system, a candidate victim device control signal including an indication of a specialized signal, a communication channel and a time in which the indicated specialized signal is to be transmitted by the at least one suspected interfering device, wherein the indicated specialized signal, the communication channel and the time in the suspected interfering device control signal and in the candidate victim device control signal are the same, wherein the indicated specialized signal is different from normal communication channel traffic signals of the shared radio frequency spectrum access system; and obtaining from the at least one candidate victim device a signal measurement value for each specialized signal transmission received by the at least one candidate victim device, wherein the signal measurement value is associated with a timestamp indicating when the at least one candidate victim device received the specialized signal transmission.