Patents by Inventor Tom Chin

Tom Chin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220022109
    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for improving voice over new radio (VoNR)-to-voice over long term evolution (VoLTE). An example method generally includes communicating with and camping on a next generation node B (gNB) in a 5G new radio (NR) system; initiating a voice call with the gNB; receiving a 5G NR-to-long term evolution (LTE) handover command in response to initiating the voice call; performing a handover procedure in response to the handover command; detecting a failure in the handover procedure; and taking one or more actions in response to detecting the failure in the handover procedure.
    Type: Application
    Filed: September 30, 2021
    Publication date: January 20, 2022
    Inventors: Yongsheng SHI, Xipeng ZHU, Haris ZISIMOPOULOS, Kirankumar Bhoja ANCHAN, Lenaig Genevieve CHAPONNIERE, Shanshan WANG, Arvind Vardarajan SANTHANAM, Mona AGRAWAL, Aziz GHOLMIEH, Tom CHIN
  • Publication number: 20220015018
    Abstract: Systems and methods for user equipment (UE) triggered edge computing application context relocation in an edge computing application architecture are described. For example, in facilitating relocation of an application context from a source edge application server (S-EAS) served by a source edge enabler server (S-EES) to a target EAS (T-EAS) served by a target EES (T-EES), S-EES centric and/or T-EES centric UE triggered application context relocation procedures may be implemented. In accordance with S-EES centric and/or T-EES centric UE triggered application context relocation procedures of some examples, a UE may take primary responsibility with respect to the application context transfer. Other aspects and features are also claimed and described.
    Type: Application
    Filed: July 8, 2021
    Publication date: January 13, 2022
    Inventors: Sunghoon Kim, Edward Robert Hall, Alan Soloway, Tom Chin
  • Publication number: 20210385192
    Abstract: Certain aspects of the present disclosure provide techniques for accessing home operator services with the home subscription using radio access from a subscription on a separate operator. A method that may be performed by a user equipment (UE) includes obtaining a data connection with a first wireless network based on a first subscription, obtaining a tunnel connection with a gateway of a second wireless network through the data connection based on a second subscription associated with the second wireless network, and communicating with the second wireless network through the tunnel connection using the data connection.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 9, 2021
    Inventors: Juan ZHANG, Ajith Tom PAYYAPPILLY, Tom CHIN
  • Publication number: 20210385735
    Abstract: Methods, systems, and devices for wireless communications are described. A UE may establish a wireless communication link with a base station in accordance with a radio access technology (RAT), and an internet connection with the base station. The UE may identify a lack of support by a network that includes the base station for a type of voice calls associated with the RAT. The UE may transmit a discovery query for a gateway to a core network, and the UE may establish a connection with the gateway via the internet connection. The UE may initiate a voice call via a call path from the UE to the core network, where the call path may include the wireless communications link with the base station in accordance with the RAT and also may include the internet connection with the gateway.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 9, 2021
    Inventors: Tom Chin, Ajith Tom Payyappilly, Juan Zhang
  • Publication number: 20210377705
    Abstract: Various embodiments provide methods, vehicle computing devices, storage media, and systems for unicast transmission of cellular vehicle-to-everything (C-V2X) Internet Protocol (IP) packets. Various embodiments may enable upper layers in a stack architecture to realize unicast transmission of C-V2X IP packets. In various embodiments, source port and destination IP address pairings may be associated with destination layer 2 (L2) addresses. In various embodiments, a source port indication and destination IP address indication may be added to a unicast C-V2X IP packet, such as a transmission control protocol (TCP) packet, a user datagram protocol (UDP) packet, etc., and the source port and destination IP address indications may be used by a modem to determine the destination L2 address for the unicast C-V2X IP packet.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Inventors: Juan ZHANG, Ajith Tom PAYYAPPILLY, Tom CHIN, Huayan RONG
  • Patent number: 11190993
    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for improving voice over new radio (VoNR)-to-voice over long term evolution (VoLTE). An example method generally includes communicating with and camping on a next generation node B (gNB) in a 5G new radio (NR) system; initiating a voice call with the gNB; receiving a 5G NR-to-long term evolution (LTE) handover command in response to initiating the voice call; performing a handover procedure in response to the handover command; detecting a failure in the handover procedure; and taking one or more actions in response to detecting the failure in the handover procedure.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: November 30, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Yongsheng Shi, Xipeng Zhu, Haris Zisimopoulos, Kirankumar Bhoja Anchan, Lenaig Genevieve Chaponniere, Shanshan Wang, Arvind Vardarajan Santhanam, Mona Agrawal, Aziz Gholmieh, Tom Chin
  • Patent number: 11184820
    Abstract: This disclosure provides systems, methods, and apparatus for wireless communications that support fast user equipment (UE) handover between base stations. A UE may receive, from a source base station, a configuration for reference signal transmission at a set of uplink transmit power levels. The UE may transmit multiple uplink reference signal repetitions based on the configuration. The source base station may transmit a request message to a target base station to measure the multiple uplink reference signal repetitions. The target base station may select an uplink reference signal and measure a transmit power correction. The target base station may transmit an indication to the source base station of the selection and transmit power correction. The source base station may evaluate the indications and select the target base station. The source base station may forward to the indicated contents, and the UE may switch and synchronize with the target base station.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: November 23, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Tom Chin, Ajith Tom Payyappilly, Min Wang, Xipeng Zhu
  • Patent number: 11184821
    Abstract: Various aspects of the disclosure relate to handover of a user equipment (UE) between a standalone mode of operation and a non-standalone mode of operation. For example, a UE may be handed-over from standalone to non-standalone, or vice versa. Moreover, this handover may be an inter-system handover (e.g., between an LTE core network and an NR core network).
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: November 23, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Xipeng Zhu, Tom Chin, Kuo-Chun Lee, Ajith Tom Payyappilly, Masato Kitazoe
  • Patent number: 11166202
    Abstract: This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: November 2, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Xipeng Zhu, Masato Kitazoe, Gavin Bernard Horn, Shyamal Ramachandran, Arvind Vardarajan Santhanam, Tom Chin, Min Wang, Kuo-Chun Lee
  • Patent number: 11166210
    Abstract: Methods, systems, and devices for wireless communications are described that provide for user equipment (UE) camping in a virtual cell. A UE may camp in a virtual cell and may be in an idle mode or an inactive mode in the virtual cell. The UE may transition out of the idle or inactive mode and switch from camping in the virtual cell to connecting to a physical cell encompassed by the virtual cell through reselection, redirection, and handover procedures. The virtual cell may include a central unit and multiple distributed units, which may be configured in various physical implementations. Additionally, the virtual cell may be limited to broadcast only or selective unicast signaling.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: November 2, 2021
    Assignee: Qualcomm Incorproated
    Inventors: Xipeng Zhu, Xiaoxia Zhang, Tom Chin
  • Publication number: 20210337398
    Abstract: Various embodiments include methods for autonomous beam switching by a wireless device. A processor of the wireless device may measure signal parameters of signals received from a first synchronization signal block (SSB) beam of a base station monitored by the wireless device and other SSB beams of the base station, determine whether a difference in measured signal parameters of signals received from the first SSB beam and another SSB beam of the base station satisfies a signal quality difference threshold, and autonomously switching to the second SSB beam as the serving beam in response to determining that the difference in the measured signal parameters of signals received from the first SSB beam and a second SSB beam satisfies the signal quality difference threshold. The signal quality difference threshold may be listed in a table in memory or determined via machine learning.
    Type: Application
    Filed: April 27, 2021
    Publication date: October 28, 2021
    Inventors: Vanitha Aravamudhan KUMAR, Tom CHIN, Thomas CHRISTOL, Uzma Khan QAZI
  • Publication number: 20210329514
    Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for limiting handoffs in cellular networks. In some aspects, a user equipment (UE) may determine a quantity of handoffs that are performed between two or more radio access technologies (RATs) during a time period. The UE may determine whether the quantity of handoffs exceeds a handoff threshold within the time period. The UE may reduce a rate of handoffs when the UE determines that the quantity of handoffs exceeds the handoff threshold within the time period. The UE also may select one of the RATs to camp on and maintain the wireless connection when the UE determines that the quantity of handoffs exceeds the handoff threshold. The UE may determine which RAT to camp on based on handoff count information, handoff total connection time information, or contextual awareness information.
    Type: Application
    Filed: April 15, 2021
    Publication date: October 21, 2021
    Inventors: Tom Chin, An Mei Chen, Ajit Chourasia, Ajith Tom Payyappilly, Juan Zhang
  • Publication number: 20210329714
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish a cellular connection with a base station associated with a cellular radio network. The UE may receive an access policy of the cellular radio network identifying an access preference rule for the UE to adopt for connections to a core network function of the cellular radio network, the access preference rule indicating for the UE to preferentially connect to the core network function via a non-cellular radio network. The UE may determine that a gateway between the non-cellular radio network and the core network function of the cellular radio network is not configured. The UE may determine that a gateway selection policy of the cellular radio network is not configured. The UE may establish a connection to a legacy core network function of a legacy cellular radio network via a legacy gateway.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 21, 2021
    Inventors: Juan Zhang, Ajith Tom Payyappilly, Tom Chin, Youjun Fan
  • Publication number: 20210306939
    Abstract: A user equipment (UE) modem stores a route selection policy (URSP), the URSP associating each of a plurality of data network name (DNN) identifiers and a corresponding slice, wherein a first DNN identifier (ID) is associated with a first DNN and a first slice and a second DNN ID is associated with the first DNN and a second slice different than the first slice. The modem establishes a first protocol data unit (PDU) session with the first DNN and the first slice in response to receiving a first indication to start a first network interface associated with the first DNN ID. The modem establishes a second PDU session with the first DNN and the second slice in response to receiving a second indication to start a second network interface associated with the second DNN ID.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 30, 2021
    Inventors: Juan ZHANG, Ajith Tom PAYYAPPILLY, Tom CHIN, Young Rak LEE, Xiaoyu DUAN
  • Patent number: 11129059
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. Further, the apparatus may be configured to determine that content is available for reception based on broadcast context information. In an aspect, the apparatus may be in an idle or inactive mode and may be associated with a first base station that is associated with a first radio access technology (RAT) that does not support broadcasting of the content. The apparatus may be further configured to receive a release message from the first base station, the release message including redirection information indicating a second base station associated with a second RAT that supports broadcasting of the content, establish a connection with the second base station based on the redirection information, and receive the content from the second base station using the second RAT.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: September 21, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Tom Chin, Ajith Tom Payyappilly, Kuo-Chun Lee
  • Publication number: 20210289407
    Abstract: Methods, systems, and devices are described for concurrently performing handoff-related measurements for neighbor cells using multiple input multiple output (MIMO) antenna resources. In one example, a mobile device is in communication with a serving cell. Handoff-related measurements of first wireless signals from a first neighbor cell are performed. The first wireless signals are received at first MIMO antenna resources of a device. Handoff-related measurements of second wireless signals from a second neighbor cell are performed, as well. The second wireless signals are received at second MIMO antenna resources concurrently with the first wireless signals received at the first MIMO antenna resources. The first handoff-related measurements and the second handoff-related measurements may be performed during a scan interval. A type of handoff-related measurement to perform may be determined based on a determined length of the scan interval.
    Type: Application
    Filed: June 1, 2021
    Publication date: September 16, 2021
    Inventors: Steven CHENG, Remi GURSKI, Kuo-Chun LEE, Tom CHIN, Guangming SHI
  • Patent number: 11122478
    Abstract: Methods, systems, and devices for wireless communications are described that provide for user equipment (UE) camping in a virtual cell. A UE may camp in a virtual cell and may be in an idle mode or an inactive mode in the virtual cell. The UE may transition out of the idle or inactive mode and switch from camping in the virtual cell to connecting to a physical cell encompassed by the virtual cell through reselection, redirection, and handover procedures. The virtual cell may include a central unit and multiple distributed units, which may be configured in various physical implementations. Additionally, the virtual cell may be limited to broadcast only or selective unicast signaling.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: September 14, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Xipeng Zhu, Xiaoxia Zhang, Tom Chin
  • Patent number: 11122127
    Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a modem of a user equipment (UE) may receive one or more parameters that configure the modem to perform a periodic communication to maintain a first connection of the UE; and perform the periodic communication based at least in part on the one or more parameters, wherein the periodic communication is performed on a second connection different than the first connection. In some aspects, an application processor of a UE may establish a connection with a server for a plurality of applications, the server to be configured to communicate with respective application servers for the plurality of applications; configure a modem of the UE to perform a periodic communication to maintain the connection; and provide a push notification, received via the connection and associated with an application of the plurality of applications, to the application.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: September 14, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Juan Zhang, Ajith Payyappilly, Tom Chin
  • Publication number: 20210282065
    Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for a user equipment (UE) to select a data connection based on which applications are active in a foreground process of an application processor. The UE may activate a dedicated data subscription (DDS) based on a list of active applications. In some aspects, the UE may programmatically initiate a DDS switch based on which applications are active. The UE may determine which data connection to activate as the DDS based on the application configuration information and which applications are active. Application configuration information may indicate preferences regarding different data connections to use for each application. The application configuration information may indicate a preferred radio access technology (RAT), a preferred communication network, a preferred subscription, or any combination thereof.
    Type: Application
    Filed: February 17, 2021
    Publication date: September 9, 2021
    Inventors: Tom Chin, Ajith Tom Payyappilly, Juan Zhang
  • Publication number: 20210281537
    Abstract: Certain aspects of the present disclosure provide techniques for a domain name system (DNS) override for edge computing. Embodiments include receiving signaling indicating an address of a DNS server. Embodiments include receiving signaling indicating an address of an edge DNS server. Embodiments include intercepting a DNS request from an application. Embodiments include changing a destination address of the DNS request to the address of the edge DNS server. Embodiments include intercepting a DNS response from the edge DNS server that is sent in response to the DNS request. Embodiments include upon determining that the DNS response does not comprise a failure notification, changing a source address of the DNS response to the address of the DNS server.
    Type: Application
    Filed: March 2, 2021
    Publication date: September 9, 2021
    Inventors: Juan ZHANG, Ajith Tom PAYYAPPILLY, Tom CHIN