Invention Grant
US09332523B2 Systems and methods of offloaded positioning for determining location of WLAN nodes
有权
卸载定位的系统和方法,用于确定WLAN节点的位置
- Patent Title: Systems and methods of offloaded positioning for determining location of WLAN nodes
- Patent Title (中): 卸载定位的系统和方法,用于确定WLAN节点的位置
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Application No.: US14272844Application Date: 2014-05-08
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Publication No.: US09332523B2Publication Date: 2016-05-03
- Inventor: Xiaoxin Zhang , Carlos Horacio Aldana , Sandip Homchaudhuri , James Simon Cho
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: Qualcomm, Incorporated
- Current Assignee: Qualcomm, Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Bay Area Technology Law Group PC
- Main IPC: H04W64/00
- IPC: H04W64/00 ; G01S5/02

Abstract:
This disclosure includes systems and methods for determining the location of each of a plurality of STAs of a WLAN where an AP measures the round-trip time (RTT) and the angle of arrival (AOA) to each STA from implicit packet exchange, such as data frame and ACK frame. The AP may then report the RTT and AOA measurements to each STA using a dedicated beacon information element (IE) which multicasts RTT and AOA measurements to the STAs. By employing an additional parameter, namely, angle of arrival AOA, a single AP may compute the two-dimensional location of each associated STA. Further, another beacon IE may multicast mapping of the AIDs to MAC addresses so that the associated STAs can understand such mapping for STAs in a network so that one STA may know the location of other STAs. Encryption may be employed to achieve privacy.
Public/Granted literature
- US20140335891A1 SYSTEMS AND METHODS OF OFFLOADED POSITIONING FOR DETERMINING LOCATION OF WLAN NODES Public/Granted day:2014-11-13
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