Abstract: In an aspect of the disclosure, an apparatus for wireless communication is provided. The apparatus may include several detectors, each of which may be configured to detect a signal received by a corresponding antenna of several antennas. The apparatus may include a processing system configured to detect a remote apparatus based on outputs from the detectors. The apparatus may include several modem radio frequency chips each including a corresponding detector of the several detectors, and a modem baseband chip including the processing system. The processing system may be configured to allow at most one of the detectors to output a detection declaration to the processing system at a time. The processing system may be configured to send a power-down command to and disconnect from each of the detectors that does not detect the signal from a corresponding antenna of the several antennas.

Abstract: In an aspect of the disclosure, an apparatus for wireless communication is provided. The apparatus may include several detectors, each of which may be configured to detect a signal received by a corresponding antenna of several antennas. The apparatus may include a processing system configured to detect a remote apparatus based on outputs from the detectors. The apparatus may include several modem radio frequency chips each including a corresponding detector of the several detectors, and a modem baseband chip including the processing system. The processing system may be configured to allow at most one of the detectors to output a detection declaration to the processing system at a time. The processing system may be configured to send a power-down command to and disconnect from each of the detectors that does not detect the signal from a corresponding antenna of the several antennas.

Abstract: In an aspect of the disclosure, an apparatus for wireless communication is provided. The apparatus may include several detectors, each of which may be configured to detect a signal received by a corresponding antenna of several antennas. The apparatus may include a processing system configured to detect a remote apparatus based on outputs from the detectors. The apparatus may include several modem radio frequency chips each including a corresponding detector of the several detectors, and a modem baseband chip including the processing system. The processing system may be configured to allow at most one of the detectors to output a detection declaration to the processing system at a time. The processing system may be configured to send a power-down command to and disconnect from each of the detectors that does not detect the signal from a corresponding antenna of the several antennas.

Abstract: Space-time-frequency multiplexing (STFM) schemes for radio frequency (RF) scanning are disclosed in which complementary pairs of sequences (or “Golay pairs”) are transmitted at different times using multiple frequencies. The transmission and reception of the sequences can occur over multiple transmit (Tx) and/or receive (Rx) radio sectors to scan an entire area for range, azimuth, elevation, and (optionally) velocity of objects therein.

Abstract: Certain aspects of the present disclosure provide methods and apparatus for performing radar operations. For example, certain aspects provide an apparatus having a first interface configured to output at least one first sequence for transmission in one or more directions, and a second interface configured to obtain at least one second sequence and at least one third sequence, where the at least one second sequence is obtained during the transmission of the at least one first sequence. In certain aspects, the apparatus also include a processing system configured to compare the at least one first sequence with the at least one second sequence, and detect one or more objects based on the comparison, wherein the detection of the one or more objects is further based on the at least one third sequence.

Abstract: In an aspect of the disclosure, an apparatus for wireless communication is provided. The apparatus may include several detectors, each of which may be configured to detect a signal received by a corresponding antenna of several antennas. The apparatus may include a processing system configured to detect a remote apparatus based on outputs from the detectors. The apparatus may include several modem radio frequency chips each including a corresponding detector of the several detectors, and a modem baseband chip including the processing system. The processing system may be configured to allow at most one of the detectors to output a detection declaration to the processing system at a time. The processing system may be configured to send a power-down command to and disconnect from each of the detectors that does not detect the signal from a corresponding antenna of the several antennas.

Abstract: An apparatus and method for performing initial signal acquisition in a receiver of a millimeter wave wireless communication system. The apparatus comprises receiving a millimeter-wave signal including complementary sequences at the receiver; cross-correlating the received signal related to the received complementary sequences with respective predefined complementary sequences, wherein the received complementary sequences include a first type of complementary sequences and a second type of complementary sequences; performing a signal sequence detection by auto-correlating the cross-correlated first type of complementary sequences and comparing the auto-correlated results to an energy dependent threshold; and upon detection of the signal sequence, performing a timing synchronization to synchronize a start frame delimiter (SFD), wherein the timing synchronization includes in part a search for a peak in the cross-correlated first type of complementary sequences using a SFD search threshold.

Abstract: An apparatus and method for performing initial signal acquisition in a receiver of a millimeter wave wireless communication system. The apparatus comprises receiving a millimeter-wave signal including complementary sequences at the receiver; cross-correlating the received signal related to the received complementary sequences with respective predefined complementary sequences, wherein the received complementary sequences include a first type of complementary sequences and a second type of complementary sequences; performing a signal sequence detection by auto-correlating the cross-correlated first type of complementary sequences and comparing the auto-correlated results to an energy dependent threshold; and upon detection of the signal sequence, performing a timing synchronization to synchronize a start frame delimiter (SFD), wherein the timing synchronization includes in part a search for a peak in the cross-correlated first type of complementary sequences using a SFD search threshold.

Abstract: A method for beamforming in a wireless local area network (WLAN), the method is performed by a receiver wireless station. The method comprises receiving a frame transmitted by a transmitter wireless station over a wireless medium; analyzing a physical (PHY) header of the received frame to determine if a Short Interframe Space (SIFS) response is required; when a SIFS response is required, performing: constructing a response frame including a PHY header, wherein the PHY header includes at least a measured link quality field; inserting a measured signal quality in the measured link quality field; waiting a time equal to a SIFS period; and sending the response frame to the transmitter wireless station after the SIFS period has elapsed, wherein based on received measured values included in response frames the transmitter wireless station predicts a loss link to initiate a beamforming training, thereby reducing the beamforming time.

Abstract: Embodiments of a correlator, a receiver, and a method for performing correlations are generally described herein. Other embodiments may be described and claimed. In some embodiments, input samples are phase-quantized into phase-quantized samples of substantially equal magnitude with approximately the original phase. The phase-quantized samples of substantially equal magnitude with approximately the original phase are correlated with a reference signal.

Abstract: Some embodiments of the invention provide devices, systems and methods of wireless signal detection. For example, an apparatus in accordance with an embodiment of the invention includes a detector to determine whether an incoming input includes a wireless communication signal intended for reception, based on an operation applied to a first auto-correlation value and a second auto-correlation value, wherein the first auto-correlation value represents a correlation between values of the incoming input at times separated by a first delay period, and wherein the second auto-correlation value represents correlation between values of the incoming input at times separated by a second, different, delay period; the first delay period is not an integer multiple of the second delay period, and the second delay period is not an integer multiple of the first delay period.

Abstract: Some embodiments of the invention provide devices, systems and methods of wireless signal detection. For example, an apparatus in accordance with an embodiment of the invention includes a detector to determine whether an incoming input is a wireless communication signal intended for reception, based on an operation applied to a cross-correlation value and an auto-correlation value.

Abstract: Embodiments of a correlator, a receiver, and a method for performing correlations are generally described herein. Other embodiments may be described and claimed. In some embodiments, input samples are phase-quantized into phase-quantized samples of substantially equal magnitude with approximately the original phase. The phase-quantized samples of substantially equal magnitude with approximately the original phase are correlated with a reference signal.

Abstract: Some embodiments of the invention provide devices, systems and methods of wireless signal detection. For example, an apparatus in accordance with an embodiment of the invention includes a detector to determine whether an incoming input includes a wireless communication signal intended for reception, based on an operation applied to a first auto-correlation value and a second auto-correlation value, wherein the first auto-correlation value represents a correlation between values of the incoming input at times separated by a first delay period, and wherein the second auto-correlation value represents correlation between values of the incoming input at times separated by a second, different, delay period; the first delay period is not an integer multiple of the second delay period, and the second delay period is not an integer multiple of the first delay period.

Abstract: Some embodiments of the invention provide devices, systems and methods of wireless signal detection. For example, an apparatus in accordance with an embodiment of the invention includes a detector to determine whether an incoming input is a wireless communication signal intended for reception, based on an operation applied to a cross-correlation value and an auto-correlation value.