Secure radio frequency sensing waveform configurations
AssigneeQUALCOMM Incorporated
InventorsKangqi Liu, Weimin Duan
Life of this patent
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Abstract
Techniques are provided for generating secure radio frequency (RF) sensing waveforms to reduce the risk of a man-in-the-middle (MITM) attack for positioning, sensing and communications. An example method for transmitting a secure radio frequency sensing waveform includes transmitting a first set of parameters including timing information or frequency information associated with a radio frequency sensing waveform, transmitting the radio frequency sensing waveform, and transmitting a second set of parameters including scrambling information associated with the radio frequency sensing waveform.
Claims34
A method for transmitting a radio frequency sensing waveform, comprising:
- transmitting a first message including a first set of parameters including timing information or frequency information associated with the radio frequency sensing waveform, the first message lacking scrambling information associated with the radio frequency sensing waveform;
- transmitting the radio frequency sensing waveform;
- and
- transmitting a second message separately from and subsequent to the first message, the second message including a second set of parameters including the scrambling information associated with the radio frequency sensing waveform.
An apparatus, comprising:
- at least one memory;
- at least one transceiver;
- at least one processor communicatively coupled to the at least one memory and the at least one transceiver, and configured to:
- receive a first message including a first set of parameters associated with a radio frequency sensing waveform, the first message lacking scrambling information associated with the radio frequency sensing waveform;
- receive one or more sensing signals based at least in part on the first set of parameters;
- store representations of the one or more sensing signals in a memory buffer;
- receive a second message separately from the first message, the second message including a second set of parameters including the scrambling information associated with the radio frequency sensing waveform;
- and
- descramble the representations of the one or more sensing signals in the memory buffer based on the second set of parameters and based on the second message being received after the first message.
A method for receiving a radio frequency sensing waveform, comprising:
- receiving a first message including a first set of parameters associated with the radio frequency sensing waveform, the first message lacking scrambling information associated with the radio frequency sensing waveform;
- receiving one or more sensing signals based at least in part on the first set of parameters;
- storing representations of the one or more sensing signals in a memory buffer;
- receiving a second message separately from the first message, the second message including a second set of parameters including the scrambling information associated with the radio frequency sensing waveform;
- and
- descrambling the representations of the one or more sensing signals in the memory buffer based on the second set of parameters and based on the second message being received after the first message.
An apparatus, comprising:
- at least one memory;
- at least one transceiver;
- at least one processor communicatively coupled to the at least one memory and the at least one transceiver, and configured to:
- transmit a first message including a first set of parameters including timing information or frequency information associated with a radio frequency sensing waveform, the first message lacking scrambling information associated with the radio frequency sensing waveform;
- transmit the radio frequency sensing waveform;
- and
- transmit a second message separately from and subsequent to the first message, the second message including a second set of parameters including scrambling information associated with the radio frequency sensing waveform.
Dependencies are inferred from the claim text.