Patent ID: 11863652
Assignee: ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for filtering a redundant data packet at a node in a Bluetooth Mesh network, comprising the following steps of:
providing a deduplication filtering cache for storing a combined field value of one or more specified fields of each of one or more Bluetooth Mesh data packets received by the node, wherein the combined field value of specified fields includes at least one obfuscated field value; and
upon receipt of a Bluetooth Mesh data packet by the node, comparing a combined field value of one or more specified fields of the data packet with each combined field value stored in the deduplication filtering cache, wherein:
discarding the data packet if the combined field value of the one or more specified fields of the data packet is the same as a combined field value stored in the deduplication filtering cache; and
storing the combined field value of the one or more specified fields of the data packet into the deduplication filtering cache and reporting the data packet to a same layer or an upper layer in a protocol stack if the combined field value of the one or more specified fields of the data packet is not the same as any combined field value stored in the deduplication filtering cache.