Method for setting guard interval in mobile communication using time division duplexing scheme
First Claim
1. A method for setting a guard interval for distinguishing a transition from an downlink period to a uplink period in a mobile communication system employing a time division duplexing (TDD) scheme, the mobile communication system including a plurality of base stations, the method comprising the steps of:
- simultaneously transmitting by each of the base stations downlink signals from transmission antennas at a first time point based on a processing delay time for a signal to be transmitted;
simultaneously receiving by each of the base stations an uplink signal at reception antennas at a second time point; and
setting a time interval from the first time point to the second time point as a guard interval for distinguishing a transition from a downlink period to an uplink period.
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Abstract
A method for setting a guard interval for distinguishing a transition from a downlink period to an uplink period in a mobile communication system employing a time division duplexing (TDD) scheme, the mobile communication system including a plurality of base stations. The method includes the steps of, simultaneously transmitting by each of the base stations downlink signals from transmission antennas at a first time point based on a processing delay time for a signal to be transmitted; simultaneously receiving by each of the base stations an uplink signal at reception antennas at a second time point; and setting a time interval from the first time point to the second time point as a guard interval for distinguishing a transition from an uplink period to a downlink period.
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Citations
8 Claims
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1. A method for setting a guard interval for distinguishing a transition from an downlink period to a uplink period in a mobile communication system employing a time division duplexing (TDD) scheme, the mobile communication system including a plurality of base stations, the method comprising the steps of:
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simultaneously transmitting by each of the base stations downlink signals from transmission antennas at a first time point based on a processing delay time for a signal to be transmitted;
simultaneously receiving by each of the base stations an uplink signal at reception antennas at a second time point; and
setting a time interval from the first time point to the second time point as a guard interval for distinguishing a transition from a downlink period to an uplink period. - View Dependent Claims (2, 3, 4, 6, 8)
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5. A method for setting a guard interval for distinguishing a transition from a downlink period to an uplink period in a mobile communication system employing a time division duplexing (TDD) scheme, the mobile communication system including a plurality of base stations, the method comprising the steps of:
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determining by each of the base stations a first time point at which downlink signal transmission ends at transmission antennas;
determining by each of the base stations a second time point at which uplink signal reception starts at reception antennas; and
setting a time interval from the first time point to the second time point as a guard interval for distinguishing a transition from a downlink period to an uplink period. - View Dependent Claims (7)
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Specification