Abstract:
Some demonstrative embodiments include apparatuses systems and/or methods of Collaborative Time of Arrival (CToA). For example, an apparatus may include circuitry and logic configured to cause a CToA broadcasting wireless communication station (STA) (bSTA) to broadcast an announcement frame to announce a ranging-to-self sequence of a CToA measurement protocol; to broadcast a first ranging measurement frame of the ranging-to-self sequence subsequent to the announcement frame; to broadcast a second ranging measurement frame of the ranging-to-self sequence subsequent to the first ranging measurement frame; and to broadcast a Location Measurement Report (LMR) frame of the ranging-to-self sequence subsequent to the second ranging measurement frame, the LMR frame including a Time of Departure (ToD) of the first ranging measurement frame.
Abstract:
For example, a mobile station may process a plurality of frames from a plurality of wireless stations, a frame from a wireless station including a ToD of the frame according to a local clock of the wireless station; process timing synchronization information corresponding to the plurality of wireless stations, timing synchronization information corresponding to the wireless station to indicate one or more synchronization offsets between the local clock of the wireless station and one or more other wireless stations of the plurality of wireless stations; and determine a plurality of ToF measurements between the mobile station and the plurality of wireless stations by determining a ToF measurement between the mobile station and the wireless station based on the ToD of the frame from the wireless station, a ToA of the frame from the wireless station, and at least the timing synchronization information corresponding to the wireless station.
Abstract:
Some demonstrative embodiments include apparatuses, systems and/or methods of Multi User (MU) Fine Timing Measurement (FTM). For example, a wireless station may be configured to transmit a trigger frame including a resource allocation of a plurality of resource slots to a plurality of wireless stations; to process a plurality of Non-Data Packet (NDP) transmissions from the plurality of wireless stations according to the resource allocation; to transmit an NDP; and to transmit a MU FTM message including timing information corresponding to the NDP and timing information corresponding to the plurality of NDP transmissions from the plurality of wireless stations.
Abstract:
Some demonstrative embodiments include apparatuses, systems and/or methods of Multi User (MU) Fine Timing Measurement (FTM). For example, a wireless station may be configured to transmit a trigger frame including a resource allocation of a plurality of resource slots to a plurality of wireless stations; to process a plurality of Non-Data Packet (NDP) transmissions from the plurality of wireless stations according to the resource allocation; to transmit an NDP; and to transmit a MU FTM message including timing information corresponding to the NDP and timing information corresponding to the plurality of NDP transmissions from the plurality of wireless stations.
Abstract:
Embodiments for performing access point position determination using crowd sourcing are generally described herein. In some embodiments, a range report request is received, by at least one mobile device, from a network entity for determining a position of a plurality of access points (APs). The at least one mobile device performs range measurements on each of the plurality of APs at different locations. A range report associated with the range measurements performed on each of the plurality of APs is sent to the network entity by the at least one mobile device.
Abstract:
Some demonstrative embodiments include apparatuses, devices, systems and methods of one-sided Round-Trip-Time (RTT) measurement. For example, an apparatus may include circuitry and logic configured to cause a mobile device to receive bias information of an Access-Point (AP); perform a one-sided round-trip-time (RTT) measurement with the AP; and estimate a range between the mobile device and the AP based on the one-sided RTT measurement and the bias information.
Abstract:
The disclosure relates to a method, apparatus and system for optimized indoor position estimation. Specifically, the disclosure relates to indoor position estimation by considering the likelihood that an access point may be an outlier. In one embodiment, the disclosure relates to a system to determine a device location. The system includes one or more antennas; a radio in communication with the at least one or more antennas; a processor to communicate with radio, the processor configured to: measure a distance from the device to a plurality of access points (APs); define a plurality of locations and calculating a distance from each of the plurality of locations to each of the plurality of APs; calculate a measurement error for each of the plurality of the calculated distances; for each location, determine a probability of measurement error as a function of both presence and absence of an outlier AP; for each location, sum the probability of measurement errors for the plurality of APs; and select the location with the highest probability of measurement error sum as an estimated device location.
Abstract:
This disclosure describes methods, apparatus, and systems related to enhanced collaborative time of arrival operations for wireless communications. A device may send trigger frames and may receive one or more null data packets (NDPs) from respective anchor station devices at respective times. The device may send a first null data packet announcement (NDPA) indicating the respective times. The device may send a third NDP. The device may identify one or more uplink NDPAs received from the respective anchor station devices, the one or more uplink NDPAs indicating respective times of arrival of the NDPs at the respective anchor station devices. The device may send a location measurement report (LMR) protocol data unit (PDU).
Abstract:
Some demonstrative embodiments include devices, systems and/or methods of estimating a location of a mobile device. For example, an apparatus may include a wireless communication unit to communicate Time of Flight (ToF) accuracy information corresponding to a location area. The ToF accuracy information may include at least one accuracy indicator corresponding to at least one wireless communication device. The accuracy indicator may indicate an accuracy of a ToF measurement at the location area with the wireless communication device.
Abstract:
Some demonstrative embodiments include apparatuses, systems and/or methods of Multi User (MU) Fine Timing Measurement (FTM). For example, a wireless station may be configured to transmit a trigger frame including a resource allocation of a plurality of resource slots to a plurality of wireless stations; to process a plurality of Non-Data Packet (NDP) transmissions from the plurality of wireless stations according to the resource allocation; to transmit an NDP; and to transmit a MU FTM message including timing information corresponding to the NDP and timing information corresponding to the plurality of NDP transmissions from the plurality of wireless stations.