A WIRELESS COMMUNICATIONS SYSTEM WITH DETECTION OF FOREIGN RADIATION SOURCES
摘要
The invention discloses a method for use in a wireless communications system with a plurality of broadcasting nodes, comprising the step of enabling one node in the system to function as a central node in said system and letting said node enable measurements on at least one frequency in a frequency band used by the system. Said measurements are carried out to detect if said at least one frequency is being utilized by a transmitter foreign to the system. Preferably, the measurement is enabled by means of the node transmitting a message to other nodes in the system, said message being a message pre-defined within the system as a message prohibiting all nodes from transmitting during a certain interval, said message being transmitted after the system has been detected by the node to be silent during a predefined interval between frame transmissions from the nodes in the system.
申请公布号
EP1433288(A1)
申请公布日期
2004.06.30
申请号
EP20020798877
申请日期
2002.09.13
申请人
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人
KHUN-JUSH, JAMSHID;SCHRAMM, PETER;LINDSKOG, JAN;ROMMER, STEFAN;PAULI, MATHIAS;ZIMMERMANN, GERD;JOHANSSON, FREDRIK;RANHEIM, ANDERS;LARSSON, PETER