Method and apparatus for setting detour path in wideband high frequency wireless system using centralized mac protocol
AssigneeElectronics and Telecommunications Research Institute
InventorsSeung Eun Hong, Kyeongpyo Kim, Yong Sun Kim, Hyoung Jin Kwon, Woo Yong Lee
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Abstract
Provided is a method and apparatus for setting a detour path in a wideband high frequency wireless system using a centralized Media Access Control (MAC) protocol. Here, in a wireless system using the centralized MAC protocol where a time synchronization and a band allocation may be performed by a single central control unit, when a signal blockage occurs while a data communication is being performed via a direct path between a source device and a destination device, the detour path may be quickly provided.
Claims6
An operating method of a relay device, the method comprising:
- receiving, by the relay device from a source device, a message for beamforming between the source device and the relay device;
- performing, by the relay device, a first beamforming process with the source device;
- transmitting, by the relay device to a destination device, a message for beamforming between the destination device and the relay device;
- and
- performing, by the relay device, a second beamforming process with the destination device,
- wherein the source device is configured to:
- perform a third beamforming process with the destination device;
- obtain a channel status of a detour path between the source device, the relay device, and the destination device as a result of the first beamforming process and the second beamforming process;
- obtain a channel status of a direct path between the source device and the destination device as a result of the third beamforming process;
- compare information associated with the channel status of the detour path with the information associated with the channel status of the direct path;
- and
- transmit data to the destination device via whichever one of the detour path and the direct path has a better channel status.
Dependencies are inferred from the claim text.