TDD sub-system of distributed antenna system using time division duplexing mode
AssigneeKmw Inc.
InventorsSeongMin Ahn, MinSeon Yun, SeokJin Lee
Life of this patent
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Abstract
The present disclosure relates to a time division duplexing (TDD) sub-system of a distributed antenna system using a TDD mode. According to the present disclosure, a head-end unit of a distributed antenna system using a division duplexing mode has a TDD sub-system which includes a TDD sync detection module, a TDD sync replica module, a TDD sync self delay detection module, and a TDD sync operator delay detection module, whereby quickly detecting possible errors in the system operation, and more efficiently performing responsive servicing thereto.
Claims12
A Time Division Duplexing (TDD) sub-system of a distributed antenna system, the TDD sub-system comprising:
- a TDD sync detection module configured to detect a Tsync reference signal from a signal received from a base station;
- a TDD sync replica module configured to perform a validation on the Tsync reference signal based on uplink/downlink configuration information associated with the signal, and to output the Tsync reference signal as a TDD sync signal for TDD switching control when the Tsync reference signal is verified to be valid and output a pre-stored Tsync reference signal as the TDD sync signal for the TDD switching control when the Tsync reference signal is not verified to be valid;
- a TDD sync self delay detection module configured to perform a detection of delay difference information of the Tsync reference signal and to provide, based on the detection, alarm information about whether or not the Tsync reference signal is delayed;
- and
- a TDD sync operator delay detection module configured to perform a detection of delay difference information of one or more other base station signals with respect to a reference of the TDD sync signal and to provide, based on the detection, alarm information about whether or not the other base station signal is delayed.
A method of supporting a Time Division Duplexing (TDD) mode of a distributed antenna system, the method comprising:
- detecting a Tsync reference signal from a signal received from a base station;
- performing a validation on the Tsync reference signal based on uplink/downlink configuration information associated with the signal, and outputting the Tsync reference signal as a TDD sync signal for TDD switching control when the Tsync reference signal is verified to be valid and outputting a pre-stored Tsync reference signal as the TDD sync signal for the TDD switching control when the Tsync reference signal is not verified to be valid;
- performing a detection of delay difference information of the Tsync reference signal and providing, based on the detection, alarm information about whether or not the Tsync reference signal is delayed;
- and
- performing a detection of delay difference information of one or more other base station signals with respect to a reference of the TDD sync signal and providing, based on the detection, alarm information about whether or not the other base station signal is delayed.
A distributed antenna system, comprising:
- a TDD sync detection module configured to detect a Tsync reference signal from a signal received from a base station;
- a TDD sync replica module configured to perform a validation on the Tsync reference signal based on uplink/downlink configuration information associated with the signal, and to output the Tsync reference signal as a TDD sync signal for TDD switching control when the Tsync reference signal is verified to be valid and output a pre-stored Tsync reference signal as the TDD sync signal for the TDD switching control when the Tsync reference signal is not verified to be valid;
- a TDD sync self delay detection module configured to perform a detection of delay difference information of the Tsync reference signal and to provide, based on the detection, alarm information about whether or not the Tsync reference signal is delayed;
- and
- a TDD sync operator delay detection module configured to perform a detection of delay difference information of one or more other base station signals with respect to a reference of the TDD sync signal and to provide, based on the detection, alarm information about whether or not the other base station signal is delayed.
Dependencies are inferred from the claim text.