Google Inc.

Litepoint Corporation

Malhar Vaishnav

Dean E Thorson

Krishna K Bellamkonda

Nischal Patel

Brett L Robertson

Ramakrishna Yellapantula

Soumyadeep Banerjee

Jarrett K Simerson

Niels Vinggaard

Chandra Punyapu

RamaKrishna Venkata Surya Yellapantula

Brett Lee Robertson

Daniel P Rose

System and method for implementing a time-switched MIMO signal analysis using a single RF signal receiver to capture the multiple incoming data packet signals. In accordance with example embodiments, like portions of repetitive data slots may be captured with a periodicity equal to that of their host repetitive data frames.

System and method for using a tester to perform time-switched multiple input, multiple output (MIMO) data packet signal analysis

A testing apparatus obtains user equipment (UE) parametric measurements with unknown and/or unavailable authentication and security information. The testing apparatus may obtain uplink and downlink parameters of a wireless device after the wireless device initiates registration while an associated timer is activated, enabling the testing apparatus to obtain additional measurement information without security information about the tested wireless device. The apparatus may also measure the UE's transmitted power level prior to the initiation of the authentication procedure. The testing apparatus may determine if a wireless device is to be tested at another frequency pair. If so, the testing apparatus redirects the wireless device to a radio resource at the other frequency pair. The testing apparatus then obtains uplink and downlink parameters for the wireless device by performing pre-registration and intra-registration measurements at the other frequency pair. The procedure is repeated until measurements for all desired frequency pairs are completed.

Performing parametric measurement for verification of a wireless communication device

A method includes collecting roaming connectivity information for a plurality of wide area networks from a plurality of mobile devices, independently of the wide area networks, receiving the roaming connectivity information at a server and relating the connectivity information to the wide area networks and to a plurality of geographic locations to create a roaming network connectivity information database, generating a list of candidate wide area networks to serve as roaming networks for a specific mobile device and a given location based on the roaming connectivity information, and sending a preferred roaming list to the specific mobile device, the preferred roaming list including the list of candidate wide area networks. The method may include receiving location prediction information from the mobile device, and generating the list of candidate wide area networks based on a predicted location.

Methods and apparatus for radio network scanning using geo-tagged information from wireless client devices of heterogeneous wide area networks

A method includes collecting physical layer and data layer connectivity information from a plurality of wide area networks using a plurality of mobile devices independently of the wide area networks. A server receives the physical layer and data layer connectivity information, relates the connectivity information to specific wide area networks and to a plurality of geographic locations to create a network statistics database. The server also receives mobile device state information including mobile device location information and predicts that connectivity for a specific mobile device will fall below acceptable criteria based on the network statistics database. The server generates a list of candidate donor mobile devices to serve as data connection sources for the specific mobile device based on the network connectivity information and the mobile device state information and selects a donor device from the list of candidate donor devices based on a weighting algorithm.

Management of ad-hoc peer-to-peer connections to provide data network access using a plurality of heterogeneous wide area networks

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Gilberts, IL, United States of America

Malhar Vaishnav