Method of maintaining internet protocol (IP) connectivity in low power internet of things (IoT) communication device based on near field communication (NFC), and device operating the same
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ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
대리인 / 주소
Kile Park Reed & Houtteman PLLC
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초록▼
Provided is a method and device for low power networking based on near field communication (NFC). The device for low power networking based on NFC may include an adaptation layer for the NFC configured to request a link layer node identification (ID), and a logical link layer including a binding to
Provided is a method and device for low power networking based on near field communication (NFC). The device for low power networking based on NFC may include an adaptation layer for the NFC configured to request a link layer node identification (ID), and a logical link layer including a binding to NFC for returning the link layer node ID to the adaptation layer for the NFC to secure an internet protocol (IP) connectivity in response to a request for the link layer node ID.
대표청구항▼
1. A device for low power networking based on near field communication (NFC), the device comprising: a processor; anda non-transitory computer-readable media including program instructions to implement:an adaptation layer for the NFC configured to request a link layer node identification (ID); anda
1. A device for low power networking based on near field communication (NFC), the device comprising: a processor; anda non-transitory computer-readable media including program instructions to implement:an adaptation layer for the NFC configured to request a link layer node identification (ID); anda logical link layer including a binding to NFC for returning the link layer node ID to the adaptation layer for the NFC to secure an internet protocol (IP) connectivity in response to a request for the link layer node ID,wherein the adaptation layer for the NFC generates an Internet Protocol version 6 (IPv6) interface identifier (IID) using the link layer node ID returned to the adaptation layer for the NFC,wherein, when the IP connectivity is requested, the binding to NFC returns a link layer node ID stored in a cache to the adaptation layer for the NFC, andwhen the IP connectivity is not requested, a cache is emptied, and a newly generated link layer node ID is returned to the adaptation layer for the NFC without being stored in the cache,wherein, when the IP connectivity is requested and if the link layer node ID is absent from the cache, a new link layer node ID is generated and stored in the cache, and the new link layer node ID is returned to the adaptation layer for the NFC. 2. The device of claim 1, wherein the adaptation layer for the NFC checks the IP connectivity and transmits a result of the checking to the binding to NFC. 3. The device of claim 1, wherein the adaptation layer checks whether the IID is duplicated. 4. The device of claim 3, wherein, when a result of the checking indicates that the IID is duplicated, the adaptation layer for the NFC requests the link layer ID. 5. The device of claim 3, when the result of the checking indicates that the IID is not duplicated, the adaptation layer generates a 128-bit IPv6 based on the IID. 6. A method of maintaining an internet protocol (IP) connectivity in a device for low power networking based on near field communication (NFC), the method comprising: requesting a link layer node identification (ID) by an adaptation layer for the NFC;returning the link layer node ID to the adaptation layer for the NFC to secure an IP connectivity in response to a request for the link layer node ID by a binding to NFC included in a logical link layer; andgenerating an Internet Protocol version 6 (IPv6) interface identifier (IID) using the link layer node ID returned to the adaptation layer for the NFC by the adaptation layer for the NFC,wherein the returning comprises:returning, by the binding to NFC, a link layer node ID stored in a cache to the adaptation layer for the NFC when the IP connectivity is requested, andemptying, by the binding to NFC, a cache and returning a newly generated link layer node ID to the adaptation layer for the NFC when the IP connectivity is not requested,wherein, when the IP connectivity is requested and if the link layer node ID is absent from the cache, the returning further comprises generating and storing, by the binding to NFC, a new link layer node ID in the cache and returning the new link layer node ID to the adaptation layer for the NFC. 7. The method of claim 6, further comprising: checking, by the adaptation layer for the NFC, the IP connectivity and transmitting a result of the checking to the binding to NFC. 8. The method of claim 6, wherein the adaptation layer checks whether the IID is duplicated. 9. The method of claim 8, wherein, when a result of the checking indicates that the IID is duplicated, the adaptation layer for the NFC requests the link layer ID. 10. The method of claim 8, wherein, when the result of the checking indicates that the IID is not duplicated, the adaptation layer generates a 128-bit IPv6 based on the IID.
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