Emory University

At&t Intellectual Property I, LP

Li Xiong

Divesh Srivastava

Yaron Kanza

Tamraparni Dasu

Shuaicheng Ma

Teddy Chu

Yonghui Xiao

Aspects of the subject disclosure may include, for example, a non-transitory, machine-readable medium, comprising executable instructions that, when executed by a processing system including a processor, facilitate performance of operations including receiving a call; selecting a next carrier to handoff the call; generating a call data record (CDR) for the handoff to the next carrier; encrypting the CDR using a call encryption key, thereby creating an encrypted CDR; encrypting the encrypted CDR using a committee encryption key, thereby creating a double encrypted CDR; recording the double encrypted CDR to a blockchain; and sending the call encryption key to the next carrier. Other embodiments are disclosed.

System and method for mitigating international revenue share fraud

The systems and methods can provide location privacy protection by incorporating temporal correlations of a user's locations. The method may include obtaining a first location of a user of a mobile user device. The method may further include determining one or more probable locations of the user for a time period from historical location information. The method may further include determining a reference location based on the first location and/or the one or more probable locations. The method may include determining a set of location(s) defining a bounded region based on the one or more probable locations and/or the reference location and privacy parameter(s) associated with the user. The method may include determining a second location from the bounded region and determining protected location information based on the reference location and the second location. The method may include communicating the protected location information.

Methods and systems for determining protected location information based on temporal correlations

Growing community of inventors

Atlanta, GA, United States of America

Li Xiong