Communication device and communication method therefor
AssigneeLG Innotek Co., Ltd.
InventorsJang Sub KIM, Sung Jun BAE, So Yeon HAM
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Abstract
A communication method by which a communication device mounted on a vehicle and including a plurality of nodes communicates with a portable device, according to an embodiment of the present invention, comprises the steps of: detecting an abnormal mode from among the plurality of nodes according to UWB signal transmission and reception between the plurality of nodes; performing, by nodes excluding the abnormal node from among the plurality of nodes, UWB ranging with the portable device; and obtaining a position of the portable device according to a result of the UWB ranging.
Claims20
A communication method by which a communication device mounted in a vehicle and including a plurality of nodes communicates with a portable device, the communication method comprising:
- detecting an abnormal node from among the plurality of nodes by transmitting or receiving ultra-wideband (UWB) signals between the plurality of nodes;
- performing, by nodes excluding the abnormal node from among the plurality of nodes, UWB ranging with the portable device;
- and
- obtaining a position of the portable device according to a result of the UWB ranging.
A communication device comprising:
- a master node;
- and
- a plurality of slave nodes,
- wherein the master node is configured to detect an abnormal node from among the plurality of slave nodes by transmitting or receiving ultra-wideband (UWB) signals to or from the plurality of slave nodes, and
- the master node and slave nodes excluding the abnormal node from among the plurality of slave nodes are configured to detect perform UWB ranging with a portable device to obtain a position of the portable device.
The communication device of claim 9, wherein, when the master node detects the abnormal node, the master node operates in an initiator mode of UWB ranging, and when the master node performs the UWB ranging with the portable device, the master node operates in a responder mode of UWB ranging.
Dependencies are inferred from the claim text.