Patent ID: 11877256
Assignee: NXP B.V.
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 12:
13. A localization system for determining the position of at least one node in a communication network, the localization system including a processing unit, a primary anchor and at least one secondary anchor, wherein:
the primary anchor is configured to transmit a poll message to the node and to the secondary anchor;
the primary anchor is configured to receive a response message from the node;
the secondary anchor is configured to receive said poll message from the primary anchor and said response message from the node;
the processing unit is configured to calculate the position of the node using position information and timing information, wherein said position information is position information of the primary anchor and of the secondary anchor, wherein said timing information is timing information of the poll message transmission by the primary anchor, of the poll message reception by the node and the secondary anchor, of the response message transmission by the node, and of the response message reception by the primary anchor and the secondary anchor, and wherein the processing unit is further configured to determine the position of a plurality of nodes in the communication network and select an additional primary anchor if at least one of said nodes has not received the poll message.