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US 9,867,071 B2Granted
Apparatus and method for avoiding collisions between wireless communication systems
AssigneeElectronics and Telecommunications Research Institute
InventorsSung Jin Yoo, Jung Sun Um, Byung Jang Jeong, Sung Hyun Hwang
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Abstract
A wireless communication method may include performing, by a first system, channel monitoring of a first band, detecting a second system that uses the first band, determining whether the first system is to be used in preference to the second system, and allocating a radio resource of the first band to the first system based on whether the first system is to be used in preference to the second system.
Claims16
A wireless communication method comprising:
- performing, by a first system, channel monitoring of a first band;
- detecting a second system that uses the first band;
- determining whether the first system is to be used in preference to the second system;
- and
- allocating a radio resource of the first band to the first system based on whether the first system is to be used in preference to the second system,
- wherein the allocating comprises allocating a time resource to the first system after a first waiting interval by adjusting a length of a cyclic prefix of a data frame used in the first system.
3 more elements
A wireless communication method comprising:
- performing, by a first system, channel monitoring of a first band, wherein the channel monitoring comprises determining whether a second system different from the first system performs a communication using the first band;
- determining an operating mode of the first system based on a result of the channel monitoring;
- allocating a radio resource of the first system to the first band based on the determined operating mode;
- and
- performing, by the first system, a communication using the allocated radio resource,
- wherein the operating mode is determined as an exclusive mode or a coexistence mode,
- wherein when the second system is not detected, the first system is determined to operate in the exclusive mode, and
- wherein when the second system is detected, the first system is determined to operate in the coexistence mode.
5 more elements
A wireless communication method comprising:
- allocating a radio resource of a first system in a first band based on a frequency and a time of a signal of the first system;
- transmitting data of the first system by including a dummy signal in an interval in which the radio resource is not allocated in the first band, wherein the first system comprises a first terminal and a second terminal, and
- wherein the transmitting comprises transmitting the data of the first system by including a signal of the second terminal and the dummy signal in an interval in which the radio resource is not allocated to the first terminal.
Dependencies are inferred from the claim text.