CN1131657C

5G,4G,3G,2G

Title

Method of emasuring time difference and radio system

Application Number:

CN1999804679

Publication Date:

17-12-2003

Family ID:

Application Date:

30-03-1999

Declaring Company:

Publication Country:

US

Priority Date:

31-03-1998

Title

Method of emasuring time difference and radio system

Application Number:

CN1999804679

Family ID:

Publication Country:

US

Publication Date:

17-12-2003

Application Date:

30-03-1999

Priority Date:

31-03-1998

Declaring Company:

Abstract  Abstract

The invention claims a method for measuring time difference and a wireless system the method for a wireless system comprising at least two base stations and a user terminal the method comprising: transmitting signals from at least two base stations; receiving a signal transmitted by the base station a first observed time difference measurement of the received signal a first geometrical time difference calculating the receiving signal and according to the first observation time difference and the first geometrical time difference changing along with time by the appearance time associated with actual time. form the real time difference of the received signal.

The invention relates to a method of measuring a time difference and a radio system employing the method the radio system comprising base stations (100 to 104) terminals (114 to 116) time difference units (106 to 110) and a time difference centre (112). A real time difference RTD of the base station (100 to 104) is formed on the basis of measurements carried out by the time difference units (106 to 110) by means of an observed time difference OTD and a geometrical time difference GTD in the time difference centre (112) as a function of time in which case the moment of occurrence of the real time difference RTD measured is connected to the real time difference RTD of the base station (100 to 104).

The invention relates to a method of measuring a time difference and a radio system employing the method the radio system comprising base stations (100 to 104) terminals (114 to 116) time difference units (106 to 110) and a time difference centre (112). A real time difference RTD of the base station (100 to 104) is formed on the basis of measurements carried out by the time difference units (106 to 110) by means of an observed time difference OTD and a geometrical time difference GTD in the time difference centre (112) as a function of time in which case the moment of occurrence of the real time difference RTD measured is connected to the real time difference RTD of the base station (100 to 104).

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.