Patents by Inventor Zhanfeng Jia
Zhanfeng Jia 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).
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Patent number: 12167274Abstract: Apparatuses, systems, and methods for Reflective Quality of Service (RQoS) enhancements. Methods may include enhancements for both UE behavior and network function behavior. Network function behaviors may include enhancements to UPF behavior and SPF behavior. Enhancements to RQoS may include methods for resetting an RQoS indicator (RQI) bit for downlink packets of a flow destined for a UE, methods for generating a flow ID to include in a SDAP header destined for a UE, methods for using the flow ID to limit L3 and L4 header parsing, methods for sending/receiving feedback regarding processing of the RQI bit, methods for maintaining a QFI mapping table, methods for skipping parsing of SDAP header fields, methods for specifying and signaling a QoS Flow Identifier (QFI) range to a UE, methods for limiting downlink header parsing, methods for updating a QFI, and methods for performing high efficiency RQoS processing.Type: GrantFiled: September 21, 2021Date of Patent: December 10, 2024Assignee: Apple Inc.Inventors: Vijay Venkataraman, Yingjie Zhao, Jason Ke, Ahmed M Salem, Bobby Jose, Haijing Hu, Krisztian Kiss, Longda Xing, Martin Kugler, Robert Zaus, Roland Gruber, Sridhar Prakasam, Srinivasan Nimmala, Sudeep Manithara Vamanan, Zhanfeng Jia
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Patent number: 12114389Abstract: While in an inactive state, a user equipment (UE) device transmits a message to a base station. The message indicates the UE device's intent to perform transmission and/or reception of user data with the network during the inactive state. The message may include a portion of the user data and/or a buffer status report. The UE device receives a response message that induces a state transition in the UE device. Different state transitions (e.g., to idle, inactive, legacy inactive, connected) may be induced by different types of response message (e.g., release, release with suspend configuration, resume, setup). One particular type of response message causes the UE to stay in the inactive state and enables subsequent user data transmission/reception in the inactive state. The response message may implicitly (or explicitly) indicate that forwarding of the user data to a core network was successful.Type: GrantFiled: October 22, 2020Date of Patent: October 8, 2024Assignee: Apple Inc.Inventors: Fangli Xu, Murtaza A Shikari, Dawei Zhang, Haijing Hu, Srinivasan Nimmala, Zhanfeng Jia, Sarma V Vangala, Ralf Rossbach
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Publication number: 20220322482Abstract: While in an inactive state, a user equipment (UE) device transmits a message to a base station. The message indicates the UE device's intent to perform transmission and/or reception of user data with the network during the inactive state. The message may include a portion of the user data and/or a buffer status report. The UE device receives a response message that induces a state transition in the UE device. Different state transitions (e.g., to idle, inactive, legacy inactive, connected) may be induced by different types of response message (e.g., release, release with suspend configuration, resume, setup). One particular type of response message causes the UE to stay in the inactive state and enables subsequent user data transmission/reception in the inactive state. The response message may implicitly (or explicitly) indicate that forwarding of the user data to a core network was successful.Type: ApplicationFiled: October 22, 2020Publication date: October 6, 2022Inventors: Fangli Xu, Murtaza A Shikari, Dawei Zhang, Haijing Hu, Srinivasan Nimmala, Zhanfeng Jia, Sarma V Vangala, Ralf Rossbach
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Publication number: 20220141705Abstract: Apparatuses, systems, and methods for Reflective Quality of Service (RQoS) enhancements. Methods may include enhancements for both UE behavior and network function behavior. Network function behaviors may include enhancements to UPF behavior and SPF behavior. Enhancements to RQoS may include methods for resetting an RQoS indicator (RQI) bit for downlink packets of a flow destined for a UE, methods for generating a flow ID to include in a SDAP header destined for a UE, methods for using the flow ID to limit L3 and L4 header parsing, methods for sending/receiving feedback regarding processing of the RQI bit, methods for maintaining a QFI mapping table, methods for skipping parsing of SDAP header fields, methods for specifying and signaling a QoS Flow Identifier (QFI) range to a UE, methods for limiting downlink header parsing, methods for updating a QFI, and methods for performing high efficiency RQoS processing.Type: ApplicationFiled: September 21, 2021Publication date: May 5, 2022Inventors: Vijay Venkataraman, Yingjie Zhao, Jason Ke, Ahmed M. Salem, Bobby Jose, Haijing Hu, Krisztian Kiss, Longda Xing, Martin Kugler, Robert Zaus, Ronald Gruber, Sridhar Prakasam, Srinivasan Nimmala, Sudeep Manithara Vamanan, Zhanfeng Jia
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Patent number: 11134403Abstract: An interface circuit in an electronic device may provide rate feedback. During operation the interface circuit may transmit one or more packets or frames associated with a data stream that are intended for the recipient electronic device, where the data stream is associated with a video encoder. Then, the interface circuit may estimate a communication performance metric associated with at least the transmissions. For example, the estimated communication performance metric comprises an effective capacity associated with a wireless link between the electronic device and the recipient electronic device. Moreover, the effective capacity may be estimated based at least in part on an efficiency of the wireless link. Next, the interface circuit may provide the rate feedback intended for the video encoder based at least in part on the estimated communication performance metric. In some embodiments, when beamforming occurs, the rate feedback may be reset.Type: GrantFiled: September 26, 2018Date of Patent: September 28, 2021Assignee: Apple Inc.Inventors: Ye Sun, Zhanfeng Jia, Yakun Sun
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Patent number: 10952139Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus is configured to receive information indicating a wake time period from a STA and use the received wake time period to schedule communication with the STA. The apparatus may use the received wake time period to determine a target transmission time for transmitting a trigger frame to the STA. The apparatus may transmit a beacon to the STA and then transmit the trigger frame to the STA at the target transmission time following the beacon. The apparatus may also indicate an offset from the beacon that the apparatus will use for communication with the STA based on the wake time period of the STA.Type: GrantFiled: March 27, 2017Date of Patent: March 16, 2021Assignee: QUALCOMM IncorporatedInventors: Alfred Asterjadhi, George Cherian, Simone Merlin, Sandip Homchaudhuri, Zhanfeng Jia, Sumeet Kumar, Pradeep Kumar Yenganti
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Publication number: 20200099596Abstract: An interface circuit in an electronic device may perform wireless link adaptation. During operation the interface circuit may transmit at least two data streams, where a first data stream of at least the two data streams has a higher quality-of-service (QoS) criterion and a lower modulation coding scheme (MCS), and a second data stream of at least the two data streams has a lower QoS criterion and a higher MCS. Then, the interface circuit may estimate a communication performance metric associated with the second data stream. Next, the interface circuit may selectively transmit an MCS probe associated with the second data stream based at least in part on the communication performance metric and the lower QoS criterion. Moreover, in response to receiving feedback information associated with the recipient electronic device and the MCS probe, the interface circuit may modify the first MCS and/or the second MCS.Type: ApplicationFiled: September 24, 2018Publication date: March 26, 2020Inventors: Ye Sun, Yakun Sun, Zhanfeng Jia
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Publication number: 20200100125Abstract: An interface circuit in an electronic device may provide rate feedback. During operation the interface circuit may transmit one or more packets or frames associated with a data stream that are intended for the recipient electronic device, where the data stream is associated with a video encoder. Then, the interface circuit may estimate a communication performance metric associated with at least the transmissions. For example, the estimated communication performance metric comprises an effective capacity associated with a wireless link between the electronic device and the recipient electronic device. Moreover, the effective capacity may be estimated based at least in part on an efficiency of the wireless link. Next, the interface circuit may provide the rate feedback intended for the video encoder based at least in part on the estimated communication performance metric. In some embodiments, when beamforming occurs, the rate feedback may be reset.Type: ApplicationFiled: September 26, 2018Publication date: March 26, 2020Inventors: Ye Sun, Zhanfeng Jia, Yakun Sun
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Patent number: 10397816Abstract: Methods, apparatus, and computer-readable media for wireless communication may involve techniques for throughput estimation. An expected air time parameter may be used as a parameter for estimating throughput. The expected air time parameter may be indicative of an estimated air time fraction obtainable for communications using an access point (AP), for example, between a wireless station (STA) and the AP. Either the expected air time parameter or an estimated air time fraction determined (e.g., calculated) from the expected air time parameter may be transmitted from the AP to the STA (or other communication device) to allow the STA (or other communication device) to determine an estimated throughput for communications using the AP.Type: GrantFiled: December 8, 2015Date of Patent: August 27, 2019Assignee: QUALCOMM IncorporatedInventors: Youhan Kim, Zhanfeng Jia, Srinivas Katar, Rahul Malik, Jay Kumar Sundararajan, Arnaud Meylan, Ning Zhang, George Cherian
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Patent number: 10231179Abstract: Systems and methods for wireless communications are disclosed. More particularly, aspects generally relate to an apparatus for wireless communications. The apparatus generally includes an interface for communicating with a plurality of wireless nodes via a plurality of antennas, and a processing system configured to determine a power state of each of the plurality of wireless nodes, and change from a first antenna mode used for communicating with the wireless nodes using a first number of spatial streams to a second antenna mode used for communicating with the wireless nodes using a second number of spatial streams, based on the determined power states of the wireless nodes.Type: GrantFiled: February 23, 2016Date of Patent: March 12, 2019Assignee: QUALCOMM IncorporatedInventors: Sandip Homchaudhuri, Youhan Kim, Srinivas Jasti, Sunghun Choi, Vikram Phogat, Ye Yuan, Umang Sureshbhai Patel, Lian Chen, Sumeet Kumar, James Simon Cho, Sreepathy Aida, Zhanfeng Jia, Pradeep Kumar Yenganti
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Publication number: 20180295573Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may communicate with a plurality of stations in a basic service set (BSS) according to a target wakeup time (TWT) slot duration. The AP may identify one or more congestion or interference factors for the BSS. In some cases, the AP may identify a congestion score based at least in part on at least one of the one or more congestion factors from one or more stations that can be part of its own BSS, and an interference score based at least in part on at least one of the one or more interference factors form one or more stations that are not part of AP's BSS. In some cases, the AP may modify the TWT slot duration based at least in part on the congestion score and the interference score.Type: ApplicationFiled: April 6, 2017Publication date: October 11, 2018Inventors: Ravi Gidvani, Sandip HomChaudhuri, Zhanfeng Jia, BadriSrinivasan Sampathkumar, Alireza Raissinia, Srinivas Katar, Madhan Jaganathan, Xiaolong Huang
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Patent number: 10021736Abstract: A method and apparatus for concurrent wireless communications on multiple channels of the same frequency band. A wireless device receives a first data signal via a first transceiver chain while concurrently initiating a transmission of a second data signal via a second transceiver chain of the wireless device. The wireless device suspends updates to one or more tracking loops of the first transceiver chain in response to initiating the transmission of the second data signal. The updates to the one or more tracking loops may be suspended prior to transmitting the second set of data from the second transceiver chain. The wireless device may subsequently resume updates to the one or more tracking loops of the first transceiver chain after completing the transmission of the second data signal.Type: GrantFiled: April 27, 2015Date of Patent: July 10, 2018Assignee: QUALCOMM IncorporatedInventors: Olaf Josef Hirsch, Guido Robert Frederiks, Zhanfeng Jia, Youhan Kim, Yixiang Li, Ning Zhang
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Publication number: 20180063742Abstract: Systems and methods for wireless communications are disclosed, such as an apparatus for wireless communications. The apparatus generally includes an interface for communicating with a plurality of wireless nodes via a plurality of antennas, a memory; and a processor coupled with the memory and configured to determine one or more indications for a set of network load factors for a wireless network of a plurality of wireless nodes and changing, based on the determined one or more indications for a set of network load factors, from a first set of radios used for communicating with at least one of the wireless nodes to a second set of radios used for communicating with at least one of the wireless nodes.Type: ApplicationFiled: August 25, 2016Publication date: March 1, 2018Inventors: Zhanfeng JIA, Ning ZHANG, Simon BRAND
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Patent number: 9877130Abstract: A data source sends a synchronization signal and information to several data sinks that use the synchronization signal and a specified parameter to determine when to process the information. The data source and data sinks may comprise wireless nodes such as, for example, a wireless audio source that sends multi-channel data to a pair of wireless earpieces. The wireless earpieces use the synchronization signal and a latency interval to determine the appropriate time to output audio based on the audio channels.Type: GrantFiled: January 8, 2014Date of Patent: January 23, 2018Assignee: QUALCOMM IncorporatedInventors: Zhanfeng Jia, David Jonathan Julian
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Publication number: 20170353226Abstract: Methods, systems, and devices for wireless communication are described. A wireless device (e.g., an access point or a station) capable of supporting multiple chain configuration modes may monitor traffic on a wireless channel. The wireless device may, based on the monitoring, determine a series of values for a metric that is indicative of communication conditions. The metric may be a packet rate, channel congestion, or signal strength. The wireless device may dynamically select one of the supported chain configuration modes in which to operate based on the series of values for the metric. In some cases, the wireless device may compute a value for the metric based on the series of values and compare the value of the metric to a predetermined threshold. In such cases, selection of the chain configuration mode may be based on the results of the comparison. In some examples, one or metrics may be used.Type: ApplicationFiled: June 1, 2017Publication date: December 7, 2017Inventors: Sandip HomChaudhuri, Pradeep Kumar Yenganti, Srikant Kuppa, Zhanfeng Jia, Ning Zhang, Ravi Gidvani, Subramania Sharma Thandaveswaran, Ravi Konda
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Publication number: 20170339680Abstract: A system and method for managing communications between an access point (AP) and a plurality of wireless stations (STAs) over a wireless medium. The AP schedules each of the plurality of STAs to access the wireless medium during a target wake time (TWT) service period. During a first portion of the TWT service period, the AP communicates with a first subset of the plurality of STAs using a first signaling technique. During a second portion of the TWT service period, the AP communicates with a second subset of the plurality of STAs using a second signaling technique. The second subset of the plurality of STAs does not include any STAs from the first subset.Type: ApplicationFiled: May 15, 2017Publication date: November 23, 2017Inventors: Zhanfeng Jia, Alireza Raissinia, James Cho, Sandip Homchaudhuri, Senthil Subramanian, Alfred Asterjadhi, Naveen Kumar Kakani
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Patent number: 9819477Abstract: A method and apparatus for concurrent wireless communications on multiple channels of the same frequency band. A wireless device determines when a first transceiver chain of the wireless device is to receive a first data signal. The wireless device then transmits a second data signal via a second transceiver chain of the wireless device based at least in part on the determination. The wireless device further suspends the transmission of the second data signal in response to the determination that the first transceiver chain is to receive the first data signal.Type: GrantFiled: April 30, 2015Date of Patent: November 14, 2017Assignee: QUALCOMM IncorporatedInventors: Olaf Josef Hirsch, Guido Robert Frederiks, Zhanfeng Jia, Youhan Kim, Yixiang Li, Ning Zhang
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Patent number: 9807691Abstract: Beacon-poll frames are transmitted from a station (STA) to a wireless AP in an opportunistic manner. In response to receiving a beacon-poll frame, the wireless AP transmits a unicast beacon frame to the STA, thereby eliminating the need for the STA to periodically wake up to receive broadcast beacon frames from the AP. The wireless AP may transmit the unicast beacon frame at a higher speed than a conventional broadcast beacon frame. As a result, the time that the STA must be awake to receive the unicast beacon frame is significantly less than the time that the STA must be awake to receive a conventional broadcast beacon frame, thereby resulting in significant power savings within the STA. The wireless AP may aggregate downlink (DL) data packets to be transmitted to the STA with the unicast beacon frame, resulting in further power savings within the STA.Type: GrantFiled: February 28, 2013Date of Patent: October 31, 2017Assignee: QUALCOMM IncorporatedInventors: Zhanfeng Jia, Sandip HomChaudhuri, Alireza Raissinia
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Patent number: 9804664Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system. In embodiments, power conservation may be achieved by adaptively controlling power modes of a wireless communication device, using a modulation and coding scheme (MCS) value as a factor for guidance. According to one aspect, the device may be in a reception mode. While in a first power mode, the device may receive control information for incoming data that is being transmitted via a transmission frame. The control information may be located in a first portion of the frame with the data following in a second portion of the frame. The control information may include or otherwise indicate an MCS value corresponding to the MCS applied to the incoming data. Based on the MCS value, the device may be adaptively switched to a second power mode for receiving the incoming data.Type: GrantFiled: May 27, 2014Date of Patent: October 31, 2017Assignee: QUALCOMM IncorporatedInventors: Sandip Homchaudhuri, Paul Husted, MeeLan Lee, Srenik Mehta, Kai Shi, Shahram Abdollahi-Alibeik, Zhanfeng Jia, Soraya Kasnavi, Ning Zhang, David Kuochieh Su, Subramania Sharma Thandaveswaran, Kenneth Gainey, Ian David O'Donnell
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Patent number: 9781673Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system. In embodiments, power conservation may be achieved by adaptively controlling power modes of a wireless communication device, and implementing lower power modes with various modes of the device. According to one aspect, the mode of the device may be a beacon monitoring mode or a delivery traffic indication message (DTIM) mode. In such a mode, the device may receive a portion of a beacon in a first power mode. The device may transition to a second, different (e.g., higher) power mode using information contained in the received portion of the beacon as guidance.Type: GrantFiled: May 27, 2014Date of Patent: October 3, 2017Assignee: QUALCOMM IncorporatedInventors: Sandip Homchaudhuri, Paul Husted, MeeLan Lee, Srenik Mehta, Kai Shi, Shahram Abdollahi-Alibeik, Zhanfeng Jia, Soraya Kasnavi, Ning Zhang, David Kuochieh Su, Subramania Sharma Thandaveswaran, Kenneth Gainey, Ian David O'Donnell