Adaptation of secure sounding signal to bandwidth variation
This disclosure describes systems, methods, and devices related to adaptation of secure sounding signal. A device may determine a negotiated bandwidth to be used when communicating with a first station device. The device may determine a first bit stream used to generate a cyclic shift diversity (CSD) value based on the negotiated bandwidth, wherein a first number of bits is used for the first bit stream when a first negotiated bandwidth is used, and wherein a second number of bits is used for the first bit stream when a second negotiated bandwidth is used. The device may determine a second bit stream used to generate a random phase. The device may determine a secure a long training field (LTF) based on a combination of the first bit stream and the second bit stream. The device may cause to send a frame to the first station device, wherein the frame comprises the secure LTF.
1. A device, the device comprising processing circuitry coupled to storage, the processing circuitry configured to:
determine a negotiated bandwidth to be used when communicating with a first station device;
determine a first bit stream used to generate a cyclic shift diversity (CSD) value based on the negotiated bandwidth, wherein a first number of bits is used for the first bit stream when a first negotiated bandwidth is used, and wherein a second number of bits is used for the first bit stream when a second negotiated bandwidth is used;
determine the negotiated bandwidth to be 20 MHz, 40 MHz, 80 MHz, 160 MHz or 80+80 MHz;
determine a second bit stream used to generate a random phase;
determine the first bit stream to be at least one of 7 bits based on the negotiated bandwidth being 20 MHz, 8 bits based on the negotiated bandwidth being 40 MHz, 9 bits based on the negotiated bandwidth being 80 MHz, or 10 bits based on the negotiated bandwidth being 160 MHz or 80+80 MHz;
determine a secure a long training field (LTF) based on a combination of the first bit stream and the second bit stream; and
cause to send a frame to the first station device, wherein the frame comprises the secure LTF.
2. The device of claim 1 , wherein the frame is a null data packet (NDP) frame.
3. The device of claim 1 , wherein the first station device is an initiating STA (ISTA) and the device is a responding STA (RSTA).
4. The device of claim 1 , wherein the first bit stream is based on a secure LTF parameters element carried in a location measurement report (LMR) frame of a previous round measurement sequence.
5. The device of claim 1 , further comprising a transceiver configured to transmit and receive wireless signals.
6. The device of claim 5 , further comprising an antenna coupled to the transceiver.
7. A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors result in performing operations comprising:
determining a negotiated bandwidth to be used when communicating with a first station device;
determining a first bit stream used to generate a cyclic shift diversity (CSD) value based on the negotiated bandwidth, wherein a first number of bits is used for the first bit stream when a first negotiated bandwidth is used, and wherein a second number of bits is used for the first bit stream when a second negotiated bandwidth is used;
determining the negotiated bandwidth to be 20 MHz, 40 MHz, 80 MHz, 160 MHz or 80+80 MHz;
determining a second bit stream used to generate a random phase;
determining the first bit stream to be at least one of 7 bits based on the negotiated bandwidth being 20 MHz, 8 bits based on the negotiated bandwidth being 40 MHz, 9 bits based on the negotiated bandwidth being 80 MHz, or 10 bits based on the negotiated bandwidth being 160 MHz or 80+80 MHz;
determining a secure a long training field (LTF) based on a combination of the first bit stream and the second bit stream; and
causing to send a frame to the first station device, wherein the frame comprises the secure LTF.
8. The non-transitory computer-readable medium of claim 7 , wherein the frame is a null data packet (NDP) frame.
9. The non-transitory computer-readable medium of claim 7 , wherein the first station device is an initiating STA (ISTA) and the device is a responding STA (RSTA).
10. The non-transitory computer-readable medium of claim 7 , wherein the first bit stream is based on a secure LTF parameters element carried in a location measurement report (LMR) frame of a previous round measurement sequence.
11. A method comprising:
determining, by one or more processors, a negotiated bandwidth to be used when communicating with a first station device;
determining a first bit stream used to generate a cyclic shift diversity (CSD) value based on the negotiated bandwidth, wherein a first number of bits is used for the first bit stream when a first negotiated bandwidth is used, and wherein a second number of bits is used for the first bit stream when a second negotiated bandwidth is used;
determining the negotiated bandwidth to be 20 MHz, 40 MHz, 80 MHz, 160 MHz or 80+80 MHz;
determining a second bit stream used to generate a random phase;
determining the first bit stream to be at least one of 7 bits based on the negotiated bandwidth being 20 MHz, 8 bits based on the negotiated bandwidth being 40 MHz, 9 bits based on the negotiated bandwidth being 80 MHz, or 10 bits based on the negotiated bandwidth being 160 MHz or 80+80 MHz;
determining a secure a long training field (LTF) based on a combination of the first bit stream and the second bit stream; and
causing to send a frame to the first station device, wherein the frame comprises the secure LTF.
12. The method of claim 11 , wherein the frame is a null data packet (NDP) frame.