公开(公告)号：US20170171833A1

公开(公告)日：2017-06-15

申请号：US15373560

申请日：2016-12-09

Applicant: QUALCOMM Incorporated

Inventor： Santosh Vamaraju ,  Hoonki Lee ,  Carlos Horacio Aldana ,  Ravi Gidvani

IPC: H04W60/04 ,  H04W48/20 ,  H04W36/30 ,  H04W36/00 ,  H04W8/14

CPC classification number: H04W60/04 ,  H04W8/14 ,  H04W36/0094 ,  H04W36/30 ,  H04W48/16 ,  H04W48/20

Abstract: This disclosure provides systems, methods and apparatus for establishing and maintaining network connections based on ranging information. In one aspect, a wireless device is configured to identify one or more candidate access points (APs) within a vicinity of the wireless device, and exchange fine timing measurement (FTM) frames with candidate APs to determine respective distances between the wireless device and each of the candidate APs. In some aspects, the exchange of FTM frames may be performed when the wireless device is not associated with any AP. In some other aspects, the exchange of FTM frames may be performed when the wireless device is already associated with an existing AP, for example, to determine whether a roaming condition is satisfied. The wireless device then selects one of the candidate APs, based at least in part on the FTM frames, and associates with the selected candidate AP.

公开(公告)号：US09992723B2

公开(公告)日：2018-06-05

申请号：US15047385

申请日：2016-02-18

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Katar ,  Arnaud Meylan ,  Farrukh Usmani ,  Srikant Kuppa ,  Subramania Sharma Thandaveswaran ,  Ramaswamy Venkateshwaran ,  Hoonki Lee ,  Viral Modi

IPC: H04W36/30 ,  H04W84/12 ,  H04W36/36

CPC classification number: H04W36/30 ,  H04W36/14 ,  H04W36/26 ,  H04W36/36 ,  H04W84/12

Abstract: Aspects of the present disclosure describe various techniques for handling data stall in wireless local area networks (WLANs). These techniques include, for example, a method in which wireless communications are switched at a wireless station from a first network device associated with a first radio access technology (RAT) (e.g., WLAN technology) to a second network device associated with a second RAT (e.g., wireless wide area network (WWAN) technology). The wireless station may then monitor network devices associated with the first RAT, including the first network device. The wireless station may filter results from the monitoring based at least in part on one or more threshold value and identify, based on the filtered results, one of the network devices as suitable for the wireless communications. The wireless communications may then be switched at the wireless station from the second network device to the one network device identified as suitable for the wireless communications.