METHOD AND SYSTEM FOR SYNCHRONIZATION OF AT LEAST TWO TERMINAL COMMUNICATION SYSTEMS AND AT LEAST ONE COUNTERPART COMMUNICATION STATION WITHIN A MULTI-STANDARD WIRELESS COMMUNICATION SYSTEM
First Claim
1. A method, comprising:
- synchronizing a plurality of terminal communication systems and a counterpart communication station coupled via a radio link within a multi-standard wireless communication system, the synchronizing including;
transmitting a counterpart transmission signal from said counterpart communication station to a corresponding terminal communication system of the plurality of terminal communication systems;
generating a common reference clock signal;
supplying said common reference clock signal to a signal generation unit within said terminal communication systems, wherein each terminal communication system comprises a conversion ratio unit having a respective conversion ratio;
deriving an accurate frequency datum from said counterpart transmission signal;
determining a frequency control signal based on said accurate frequency datum; and
obtaining synchronization between said corresponding terminal communication system and the counterpart communication station, the obtaining including at least one of;
adapting a frequency of the common reference clock signal according to the frequency control datum; and
adapting the conversion ratio of said conversion ratio unit of the corresponding terminal communication system according to the frequency control datum.
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Accused Products
Abstract
A method synchronizes plural terminal communication systems and a counterpart communication station connected via a radio link within a multi-standard wireless communication system, wherein a counterpart transmission signal is transmitted from said counterpart communication station to the corresponding terminal communication system. A common reference clock signal is generated and supplied to a signal generation unit within said terminal communication system, wherein each terminal communication system comprises a conversion ratio unit having a conversion ratio. An accurate frequency datum is derived from each counterpart transmission signal in the terminal communication systems and a frequency control signal is determined from said accurate frequency datum. A synchronization between said terminal communication stations and counterpart communication station is obtained by adjusting the frequency of the common reference clock signal and/or the conversion ratio of said conversion ratio units according to the frequency control signal.
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Citations
25 Claims
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1. A method, comprising:
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synchronizing a plurality of terminal communication systems and a counterpart communication station coupled via a radio link within a multi-standard wireless communication system, the synchronizing including; transmitting a counterpart transmission signal from said counterpart communication station to a corresponding terminal communication system of the plurality of terminal communication systems; generating a common reference clock signal; supplying said common reference clock signal to a signal generation unit within said terminal communication systems, wherein each terminal communication system comprises a conversion ratio unit having a respective conversion ratio; deriving an accurate frequency datum from said counterpart transmission signal; determining a frequency control signal based on said accurate frequency datum; and obtaining synchronization between said corresponding terminal communication system and the counterpart communication station, the obtaining including at least one of; adapting a frequency of the common reference clock signal according to the frequency control datum; and adapting the conversion ratio of said conversion ratio unit of the corresponding terminal communication system according to the frequency control datum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A multi-standard wireless communication system, comprising:
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a common reference clock unit configured to generate a common reference clock signal; and a plurality of radio communication systems, each radio communication system including a terminal communication system and a counterpart communication station coupled to each other via radio link, each counterpart communication station being configured to transmit a counterpart transmission signal to the terminal communication system of the radio communication system, each terminal communication system including; a signal generation unit including a conversion ratio unit having a corresponding conversion ratio, the signal generation being configured to receive the common reference clock signal from the common reference clock unit; and a signal conversion unit configured to derive an accurate frequency datum from the counterpart transmission signal received by the terminal communication system;
wherein one of the terminal communication systems includes;a clock control unit configured to determine a frequency control signal based on said accurate frequency datum, wherein the common reference clock unit is configured to adjust a frequency of the common reference clock signal according to the frequency control signal and/or said conversion ratio units are configured to adjust their respective conversing ratios according to the frequency control signal. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification