Synchronizing satellite clock in base transceiver station
First Claim
1. A system comprising:
- a GPS receiver module adapted to extract clock information and time of date(TOD) information from a received GPS signal, to generate a first clock signal and first TOD data, and to output the first clock signal and first TOD data to a first base transceiver station and a base transceiver station of a next stage, the GPS receiver module being arranged within the first base-station transceiver; and
a clock module adapted to generate a second clock signal and second TOD data synchronized with the first clock signal and first TOD data by performing a delay correction with one of the GPS receiver module of the first base transceiver station or a base transceiver station of a previous stage, and to output the second clock signal and second TOD data to its base transceiver station and a base transceiver station of the next stage upon the clock module receiving a first clock signal and first TOD data from one of the GPS receiver module of the first base transceiver station or the base transceiver station of the previous stage, the clock module being arranged within a base transceiver station other than the first base-station transceiver.
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Accused Products
Abstract
A system for synchronizing clocks includes: a GPS receiver module adapted to extract clock information and TOD information from a received GPS signal, to generate and output a clock signal and TOD data to a first base transceiver station and a base transceiver station of a next stage, the GPS receiver module being arranged within the first base-station transceiver; and a clock module adapted to generate a clock signal and TOD data synchronized with the clock signal and the TOD data of the first base transceiver station by performing a delay correction with one of the GPS receiver module of the first base transceiver station or a base transceiver station of a previous stage, and to output the clock signal and the TOD data to its base transceiver station and a base transceiver station of a next stage, upon the clock module receiving a clock signal and TOD data from one of the GPS receiver module of the first base transceiver station or the base transceiver station of the previous stage through a daisy chain, the clock module being arranged within a base transceiver station other than the first base-station transceiver.
51 Citations
9 Claims
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1. A system comprising:
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a GPS receiver module adapted to extract clock information and time of date(TOD) information from a received GPS signal, to generate a first clock signal and first TOD data, and to output the first clock signal and first TOD data to a first base transceiver station and a base transceiver station of a next stage, the GPS receiver module being arranged within the first base-station transceiver; and
a clock module adapted to generate a second clock signal and second TOD data synchronized with the first clock signal and first TOD data by performing a delay correction with one of the GPS receiver module of the first base transceiver station or a base transceiver station of a previous stage, and to output the second clock signal and second TOD data to its base transceiver station and a base transceiver station of the next stage upon the clock module receiving a first clock signal and first TOD data from one of the GPS receiver module of the first base transceiver station or the base transceiver station of the previous stage, the clock module being arranged within a base transceiver station other than the first base-station transceiver. - View Dependent Claims (2, 3, 4)
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5. A system comprising:
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a main base transceiver station having a GPS receiver module adapted to extract clock information and TOD information from a received GPS signal and to generate a clock signal and TOD data used for operating its base-station transceiver; and
at least one sub-base transceiver station, each at least one sub-base transceiver station having a clock module adapted to receive a clock signal and TOD data from one of the GPS receiver module of the main base transceiver station or an adjacent base transceiver station through a daisy chain, and to generate a clock signal and TOD data synchronized with the clock signal and the TOD data used in the main base transceiver station by performing a delay correction with one of the GPS receiver module which has transmitted the clock signal and the TOD data or the adjacent base-station transceiver.
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6. A method comprising:
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extracting clock information and TOD information from a received GPS signal, with a first base transceiver station having a GPS receiver module;
outputting a clock signal and TOD data used for operating the first base transceiver station from the extracted clock information and TOD information from the first base-station transceiver;
receiving clock signals and TOD data from one of the first base transceiver station or a base transceiver station of the previous stage through a daisy chain, with a base transceiver station other than the first base-station transceiver;
measuring and correcting delays of the received clock signals and TOD data with a base transceiver station other than the first base-station transceiver; and
generating clock signals and TOD data synchronized with the clock signal and the TOD data used in the first base transceiver station by reflecting a value of the delay correction to the received clock signals and TOD data, and outputting the synchronized clock signals and TOD data to its base transceiver station and the base transceiver station of the next stage, with a base transceiver station other than the first base-station transceiver. - View Dependent Claims (7)
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8. A system comprising:
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a first base transceiver station including a GPS receiver module adapted to extract clock information and time of date (TOD) information from a received GPS signal and to generate and output a clock signal and TOD data therefrom; and
another base transceiver station including a clock module, the clock module being coupled to the GPS receiver module of the first-base transceiver station and adapted to receive the clock signal and TOD data from the GPS receiver module and to generate another clock signal and another TOD data synchronized with the clock signal and TOD data from the GPS receiver module by performing a delay correction. - View Dependent Claims (9)
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Specification