Qualcomm Incorporated

Shrawan K Khatri

Ajith Tom Payyappilly

Suli Zhao

Srinivasan Balasubramanian

Vikram Singh

Rajashekar Chilla

Vamsi Dokku

Srinivas Reddy Mudireddy

Vinay Paradkar

Sriram Nagesh Nookala

Cherng-Shung Hsu

Vipin A Sali

Venugopal Ramamurthy

Thomas Matthew Rebman

Siddharth Chitnis

Nirupama Locanindi

Jimi Atul Shah

Changkun Chen

Harsh Murari

Ali Asghar Zafer

Pavan Namburi

Aditya Reddy Muddasani

Pavan c/o Qualcomm Inc Namburi

Vipin A c/o Qualcomm Incorporated Sali

Techniques described provide for transferring calls between a first user equipment (UE) and a second UE. One implementation may include receiving a request to transfer a call, which has been established between the first UE and a third party device, to be between a second UE and the third party device. Location information for the first and second UEs may be received. A determination may be made to determine whether the first and second UE are in proximity to each other. In the event that a determination is made that the first and second UE are in proximity to each other, the established call may be transferred from the first UE to the second UE. Other aspects and features are also claimed and described.

User equipment-assisted secure call transfers

Apparatus and methods for power management in a wireless communication device include detecting a change in a serving cell for data communication from a first cell to a second cell; determining whether a terminal equipment (TE) is in a low power state; detecting a first technology type of the first cell and a second technology type of the second cell; determining whether the second technology type is a different technology mode than the first technology type; sending a cell change notification to a data processor associated with the TE when the second technology type is in the different technology mode than the first technology type and the TE is not in a low power state; and suppressing the sending of the cell change notification when the second technology type is not in the different technology mode and the TE is in the low power state.

Apparatus and methods for enhanced user equipment power management via controlled cell change notifications

A method for maintaining IP context during an inter RAT handover of a UE between an eHRPD network and an LTE network may include delaying a transfer of an Internet Protocol context for at least one active packet data network until an IP address for an attach (PDN) Packet Data Network has been assigned and in the case where the Internet Protocol address for the Attach Packet Data Network is not assigned, initiating a detach operation from the LTE network without the user equipment losing the Internet Protocol context of the at least one active Packet Data Network.

System and method for minimizing loss of IP context during IRAT handover

Systems and methods for synchronizing filter records between a mobile device and a network node are described herein. Upon detection of a precedence contention when installing filters at the network node, a synchronization command can be initiated to synchronize the filter records between the mobile device and the network node.

Systems and methods for synchronizing filter records

Aspects of the present disclosure provide techniques for preventing loss of IP continuity when transitioning between networks. Certain aspects provide methods that generally include initiating a first timer upon attempting to transition from a first RAT network to a second RAT network during an IP session and initiating a second timer if a channel in the second RAT network is successfully acquired. According to aspects, a device may transfer context of the IP session to the second RAT network if a session is successfully negotiated in the second network prior to expiration of the second timer and the first and second networks share a common core network for IP services.

Preventing loss of IP continuity when transitioning between different networks

Aspects of the present disclosure provide apparatus and methods to reduce the time taken to perform multiple packet data network (PDN) context transfers during inter-radio access technology (IRAT) scenarios. Certain aspects provide methods and apparatus for wireless communication by a device capable of communicating in at least a first and second RAT networks. The device may have multiple PDN contexts established in the first RAT network. As part of a transition to the second RAT network, the mobile device may transmit a single signaling message that indicates at least two of the PDN contexts to be transferred. In some aspects, the single signaling message may also indicate a new PDN context to be established as part of the transition.

Methods and apparatus to reduce a time to transfer multiple PDN contexts during inter-radio access technology handoff

In a method for managing quality of service (QoS) resources during handoff across communication systems having different grades of QoS awareness, an access terminal (AT) determines that handoff has occurred from a QoS unaware system to a QoS aware system. The AT also determines whether there are any allocated, unrequested QoS resources. If one or more allocated, unrequested QoS resources are identified, the AT requests that the QoS aware system release the one or more allocated, unrequested QoS resources. The AT also determines whether there are any requested, unallocated QoS resources. If one or more requested, unallocated QoS resources are identified, the AT requests that the QoS aware system allocate the one or more requested, unallocated QoS resources to the application.

Systems and methods for managing resources during handoff across communication systems having different grades of quality of service awareness

Growing community of inventors

San Diego, CA, United States of America

Shrawan K Khatri