Patent ID: 11943621
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A method of data transmission, performed by a wireless device, the method comprising:
determining a first value for a localization tone;
generating a modified localization tone such that, after whitening and encrypting, the modified localization tone returns to the first value;
inserting the modified localization tone into a data packet at an application layer of a communication protocol stack, the modified localization tone preceding data of a payload of the data packet and having a last bit immediately preceding a first bit of the data of the payload;
whitening the data packet after inserting the modified localization tone into the data packet;
encrypting the data packet after inserting the modified localization tone into the data packet; and
transmitting the data packet after the whitening and the encrypting the data packet, wherein the encrypting the data packet is based on an encryption process, and wherein the method further comprises setting a length of the localization tone to be equal to a multiple of a block size of the encryption process.