Qing Guo Li

US Patent:

8595520, Nov 26, 2013

Filed:

Nov 21, 2011

Appl. No.:

13/301431

Inventors:

Qing Li - Boulder CO, US
Jon J. Anderson - Boulder CO, US
James M. Artmeier - Boulder CO, US
Jeffrey A. Niemann - Boulder CO, US
Sumit Sur - Boulder CO, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

G06F 1/00
G06F 1/26
G06F 1/32

US Classification:

713300, 713320

Abstract:

Various embodiments of methods and systems for determining the thermal status of processing components within a portable computing device (“PCD”) by measuring leakage current on power rails associated with the components are disclosed. One such method involves measuring current on a power rail after a processing component has entered a “wait for interrupt” mode. Advantageously, because a processing component may “power down” in such a mode, any current remaining on the power rail associated with the processing component may be attributable to leakage current. Based on the measured leakage current, a thermal status of the processing component may be determined and thermal management policies consistent with the thermal status of the processing component implemented. Notably, it is an advantage of embodiments that the thermal status of a processing component within a PCD may be established without the need to leverage temperature sensors.

US Patent:

8650423, Feb 11, 2014

Filed:

Nov 21, 2011

Appl. No.:

13/301480

Inventors:

Qing Li - Boulder CO, US
Sumit Sur - Boulder CO, US
Jeffrey A. Niemann - Boulder CO, US
James M. Artmeier - Boulder CO, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

G06F 1/00
G06F 1/26
G06F 1/32

US Classification:

713322, 713300, 713320

Abstract:

The aspects enable a computing device or microprocessor to scale the frequency and/or voltage of a processor to an optimal value balancing performance and power savings in view of a current processor workload. Busy and/or idle duration statistics are calculated from the processor during execution. The statistics may include a running average busy and/or idle duration or idle/busy ratio, a variance of the running average and a trend of the running average. Current busy or idle durations or an idle-to-busy ratio may be computed based on collected statistics. The current idle-to-busy ratio may be compared to a target idle-to-busy ratio and the frequency/voltage of the processor may be adjusted based on the results of the comparison to drive the current running average toward the target value. The target value of idle-to-busy ratio may be adjusted based on the calculated variance and/or trend values.

US Patent:

20090282159, Nov 12, 2009

Filed:

Apr 9, 2009

Appl. No.:

12/420965

Inventors:

Qing Li - Broomfield CO, US
Ron Munoz - Arvada CO, US

Assignee:

Level 3 Communications, LLC - Broomfield CO

International Classification:

G06F 15/16

US Classification:

709231

Abstract:

An embodiment of a method includes receiving a request for the content from a requester, retrieving the content from a media access server, and while retrieving the content from the media access server, simultaneously streaming the content to the requester. An embodiment of a system includes an edge server having a media streaming server configured to receive the request and stream the specified content to a requester from a local memory, and a stream caching server configured to retrieve the requested content from a media access server while the media streaming server is streaming at least a specified portion of the content, and wherein the stream caching server is further configured to store the retrieved content in a local cache and notify the media streaming server that content is stored in local cache.

US Patent:

20100325303, Dec 23, 2010

Filed:

Aug 24, 2010

Appl. No.:

12/862323

Inventors:

Qing Li - Broomfield CO, US
Ron Munoz - Arvada CO, US
Jeremy Spencer - Lafayette CO, US

International Classification:

G06F 15/16

US Classification:

709231

Abstract:

An embodiment of a method includes receiving a request for the content from a requester, retrieving the content from a media access server, and while retrieving the content from the media access server, simultaneously streaming the content to the requester. An embodiment of a system includes an edge server having a media streaming server configured to receive the request and stream the specified content to a requester from a local memory, and a stream caching server configured to retrieve the requested content from a media access server while the media streaming server is streaming at least a specified portion of the content, and wherein the stream caching server is further configured to store the retrieved content in a local cache and notify the media streaming server that content is stored in local cache.

US Patent:

20130097415, Apr 18, 2013

Filed:

Jan 12, 2012

Appl. No.:

13/349139

Inventors:

Qing Li - Boulder CO, US
Sumit Sur - Broomfield CO, US
Jeffrey A. Niemann - Superior CO, US
Bohuslav Rychlik - San Diego CA, US

Assignee:

QUALCOMM INCORPORATED - San Diego CA

International Classification:

G06F 9/06

US Classification:

713100

Abstract:

The aspects enable a computing device or microprocessor to adjust the operations of a processor in view of a current processor workload based on a histogram-like data structure. A histogram-like data structure characterizing one of processor busy and/or idle durations or busy/idle ratios is generated at runtime and used to model the processor workload. The processor workload is used to predict future processing requirements and to adjust the processor's operations such that they are commensurate with the processing and workload requirements. The histogram-like data structure may alternatively be used to estimate a current quality of service (QoS) of a communication link so that link management actions may be taken.

US Patent:

20130301218, Nov 14, 2013

Filed:

May 9, 2012

Appl. No.:

13/467297

Inventors:

Qing Li - Boulder CO, US
Jon J. Anderson - Boulder CO, US

Assignee:

QUALCOMM INCORPORATED - San Diego CA

International Classification:

H05K 7/20

US Classification:

361695

Abstract:

Methods, systems, and devices for providing cooling for a mobile device using piezoelectric active cooling devices. Some embodiments utilize piezoelectric actuators that oscillate a planar element within an air channel to fan air within or at an outlet of the air channel. The air channel may be defined by at least one heat dissipation surface in thermal contact with components of the mobile device that generate excess waste heat. For example, the air channel may include a surface that is in thermal contact with a processor of the mobile computing device. In embodiments, the piezoelectric active cooling device may be used in an air gap between stacked packages in a package on package (PoP) processor package. The described embodiments provide active cooling using low power, can be controlled to provide variable cooling, use highly reliable elements, and can be implemented at low cost.

US Patent:

20210258976, Aug 19, 2021

Filed:

Apr 26, 2021

Appl. No.:

17/240383

Inventors:

- Wilmington DE, US
Ahmed Mohamed - Miramar FL, US
Qing Li - Princeton Junction NJ, US
Rocco Di Girolamo - Laval, CA
Chonggang Wang - Princeton NJ, US

International Classification:

H04W 72/12
H04W 4/70
H04W 76/10
H04W 12/06

Abstract:

A Service Capability Exposure Function can be added to the UE (U-SCEF). The U-SCEF may be part of the UE's operating system (OS) and expose API's to applications that allow these applications to schedule data plane communications such as periodic sensor measurements or a firmware download. The U-SCEF communicates with an EPC Interworking Service that resides in the mobile network operator's (S)Gi-LAN. The EPC Interworking Service serves as an interface between the U-SCEF and the service capabilities that are exposed by the MNO via the SCEF. The U-SCEF may provide the EPC Interworking Service with information about the UE's anticipated communication schedule and mobility status. The EPC Interworking Service uses the services that are exposed by the SCEF to determine the optimal times for the UE to communicate, an optimal mobility management configuration, etc. The EPC Interworking Service negotiates a communication schedule with the EPC (SCEF) on behalf of the UE (U-SCEF) and provide the U-SCEF with a communication policy or mobility management policy to match the needs of the UE and the mobile network.

US Patent:

20210076265, Mar 11, 2021

Filed:

Nov 16, 2020

Appl. No.:

17/099048

Inventors:

- Wilmington DE, US
Ahmed MOHAMED - Miramar FL, US
Michael F. STARSINIC - Newtown PA, US
Qing LI - Princeton Junction NJ, US

International Classification:

H04W 36/00
H04W 76/12
H04W 36/14
H04W 88/16
H04W 8/26
H04W 36/18

Abstract:

A system comprises an integrated small cell and WiFi (ISW) gateway (GW). The ISW GW is integrated with a mobility management entity (MME) and serving gateway (SGW) and has interfaces with both a 3GPP access network and a TWAN. The ISW GW operates as a common control gateway and a common user gateway for both LTE networks and TWANs. User equipment (UE) by means of the ISW GW is able to access the capabilities of a packet data network (PDN) through either the LTE network or TWAN. Further, the ISW GW provides for an existing communication connection between a UE and a PDN to be handed over from one of the LTE network or TWAN to the other. Still further, the ISW GW supports simultaneously maintaining two communication paths, one via the LTE network and one via the TWAN, between a UE and a packet network.