Patents by Inventor Pengkai Zhao
Pengkai Zhao 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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Publication number: 20230025057Abstract: Some embodiments include an apparatus, method, and computer program product for using group based reporting for beam management in a 5G wireless communications system. A user equipment (UE) can determine based on a signal-to-interference-plus noise ratio (SINR) or reference signal received power (RSRP) measurement, a ranking of two or more beam combinations, and transmit the ranking to a 5G node B (gNB). The UE can receive from the gNB, a transmission configuration indicator (TCI) codepoint that identifies a combination of two or more beams, where the TCI codepoint is based at least on the ranking. The UE can receive simultaneous transmissions via the combination, and transmit a report to the gNB that identifies by the TCI codepoint, SINRs that corresponds to the combination. In some embodiments the UE can simultaneously transmit on a second combination identified by a sounding reference signal (SRS) resource indicator (SRI) codepoint.Type: ApplicationFiled: April 8, 2020Publication date: January 26, 2023Applicant: Apple Inc.Inventors: Haitong SUN, Chunhai YAO, Chunxuan YE, Dawei ZHANG, Hong HE, Jia TANG, Oghenekome OTERI, Pengkai ZHAO, Tianyan PU, Wei ZENG, Wei ZHANG, Weidong YANG, Yeong-Sun HWANG, Yuchul KIM, Yushu ZHANG
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Patent number: 11540276Abstract: A device may wirelessly communicate according to a first radio access technology (RAT) within a first bandwidth part (BWP) of a frequency spectrum in which wireless communications according to other RAT(s) also take place. The device may be instructed to operate/communicate within a second BWP of the frequency spectrum responsive to the device successfully completing a listen-before-talk (LBT) procedure within a specified portion of the second BWP, where the second BWP contains the first BWP while the first BWP does not contain the specified portion of the second BWP. The device may also be instructed to operate/communicate within a specified frequency band (SFB) of the frequency spectrum responsive to the device successfully completing an LBT procedure within the SFB, where the SFB is not contiguous with the frequency band that includes the first BWP. The device may then simultaneously operate within the second frequency band and the first frequency band.Type: GrantFiled: September 23, 2019Date of Patent: December 27, 2022Assignee: Apple Inc.Inventors: Wei Zhang, Pengkai Zhao, Wei Zeng, Haitong Sun, Dawei Zhang, Jia Tang, Johnson O. Sebeni, Ping Wang, Sami M. Almalfouh, Tianyan Pu
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Publication number: 20220407573Abstract: A method includes receiving an indication to transmit a first set of signals using a first standard (e.g., Long Term Evolution) via a first set of antennas of a radio frequency device and a second set of signals using a second standard (e.g., New Radio) via a second set of antennas. The method also includes transmitting the first set of signals via the first set of antennas using a first power based on positions of the first set and second set of antennas, exposure conditions of the first set and the second set of signals on a user, and/or priorities of the first and the second set of signals. Moreover, the method includes transmitting the second set of signals via the second set of antennas using a second power based on the positions of the antennas, the exposure conditions of the signals on the user, and/or priorities of the signals.Type: ApplicationFiled: June 18, 2021Publication date: December 22, 2022Inventors: Weiping Dou, Anthony Wang, Digvijay Arjunrao Jadhav, Eric Conor Merkley, Hailong Yang, Indranil S. Sen, Madhusudan Chaudhary, Pengkai Zhao, Prashant H. Vashi, Rajesh Ambati, Wen Zhao
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Publication number: 20220394605Abstract: A device, system and method for a user equipment (UE) to report a network resource and capability state to a network for coordinating network resource allocations. The UE is configured to establish a first connection to a first network based on a first subscriber identity module (SIM) of the UE and further configured to establish a second connection to a second network based on a second SIM of the UE. The method includes determining an upcoming first change of a state of the UE with respect to the first connection and transmitting, to the first network, an indication of the first change of state of the UE. The method further includes changing the state of the UE with respect to the first connection.Type: ApplicationFiled: November 28, 2019Publication date: December 8, 2022Inventors: Beibei WANG, Pengkai ZHAO, Zhu JI, Fangli XU, Haijng HU, Yuqin CHEN, Lele CUI, Ruirui ZONG, Haitong SUN, Wei ZENG, Jia TANG, Tianyan PU, Johnson O. SEBENI, Dawei ZHANG, Thanigaivelu ELANGOVAN, Hailong YANG, Xueting LIU
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Patent number: 11516882Abstract: Apparatuses, systems, and methods for providing downlink control for non coherent joint transmission. A cellular base station may provide downlink control information associated with a non coherent joint transmission downlink data communication to a wireless device, which may receive the downlink control information. The downlink control information may be provided as a single downlink control information including scheduling information for two data streams of the non coherent joint transmission data communication, or a portion of a multi-stage downlink control information transmission. The wireless device may receive the non coherent joint transmission downlink data communication based at least in part on the downlink control information.Type: GrantFiled: September 23, 2019Date of Patent: November 29, 2022Assignee: Apple Inc.Inventors: Haitong Sun, Johnson O. Sebeni, Zhu Ji, Dawei Zhang, Wei Zhang, Yuchul Kim, Tianyan Pu, Pengkai Zhao, Wei Zeng
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Publication number: 20220377532Abstract: A method and apparatus for a wireless device of reduced capabilities to access a wireless communication network targeted to operate with wireless device having higher capabilities is disclosed. The device may receive from abase station of the wireless communication network an indication of whether the type of devices that includes the wireless device of reduced capabilities is allowed to access the wireless communication network. The device may transmit to the base station signaling associated with connecting to the base station if the base station indicates that the type of devices with reduced capabilities is allowed to access the wireless communication network. The signaling allows the device to connect to the base station. The device may transmit capability information of the device to the base station. The device may configure its features based on the capability information to communicate with the base station.Type: ApplicationFiled: February 2, 2020Publication date: November 24, 2022Inventors: Hong He, Dawei Zhang, Wei Zeng, Chunhai Yao, Haitong Sun, Yuchul Kim, Yushu Zhang, Chunxuan Ye, Oghenekome Oteri, Weidong Yang, Yang Tang, Jie Cui, Zhibin WU, Pengkai Zhao
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Publication number: 20220368403Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for a UE to request a beam quality measurement procedure. A user equipment device may be configured to perform a method including performing transmitting a request to perform a beam quality measurement procedure for downlink receptions (e.g., a P3 procedure) to a base station/network entity, receiving instructions to perform the beam quality measurement procedure from the base station, and transmitting results of the beam quality measurement procedure to the base station. In some embodiments, transmission of the request may be response to at least one trigger condition and/or detection of a condition at the UE. The request may include an indication of a preferred timing offset. The instructions to perform the beam quality measurement procedure may include a schedule for the beam quality measurement.Type: ApplicationFiled: July 26, 2022Publication date: November 17, 2022Inventors: Jia Tang, Beibei Wang, Dawei Zhang, Haitong Sun, Johnson O. Sebeni, Pengkai Zhao, Ping Wang, Wei Zeng, Yang Li, Zhu Ji
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Publication number: 20220311478Abstract: Various systems and methods disclosed herein describe improvements for beam management that leverage virtualization across a vertical polarization (V-Pol) and horizontal polarization (H-Pol). One or more of a user equipment (UE) and a base station may include an antenna array comprising both V-Pol and H-Pol antenna elements. A UE may message a base station to configure uplink (UL) multiple input multiple output (MIMO) operations across one or more of the V-Pol and the H-Pol. The message may include a number of MIMO layers to be concurrently used for communicating data to the base station, where each MIMO layer is transmitted using one of a V-Pol and an H-Pol; a number of sounding reference signals (SRS) to be transmitted by the UE, each SRS to be transmitted using one of the V-Pol and the H-Pol; and a supported maximum number of antenna ports per each SRS.Type: ApplicationFiled: April 14, 2021Publication date: September 29, 2022Inventors: Haitong SUN, Chunhai YAO, Chunxuan YE, Dawei ZHANG, Hong HE, Oghenekome OTERI, Pengkai ZHAO, Sigen YE, Wei ZENG, Weidong YANG, Wen ZHAO, Yushu ZHANG
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Publication number: 20220312417Abstract: Systems and methods provide secondary cell group (SCG) activation and deactivation. A user equipment (UE) in a wireless network may determine bandwidth part (BWP) configurations for a carrier of a primary secondary cell (PSCell) of an SCG for dual connectivity (DC). The UE may move between an SCG activation state and an SCG deactivation state based on the BWP configurations. SCG deactivation modeling may be based on a separate BWP configuration or may be modeled via a separate configuration in radio resource control (RRC) that is applicable to the BWPs in a serving cell.Type: ApplicationFiled: October 22, 2020Publication date: September 29, 2022Inventors: Naveen Kumar R Palle VENKATA, Fangli XU, Haijing HU, Lakshmi N. KAVURI, Muthukumaran DHANAPAL, Pengkai ZHAO, Sarma V. VANGALA, Thanigaivelu ELANGOVAN, Wenping LOU, Yuqin CHEN, Zhibin WU
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Publication number: 20220312551Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for performing a listen again after talk procedure to detect collisions over an access medium. The wireless device may determine a frequency and configuration of modified transmission frames for transmission over an access medium (licensed or unlicensed) and may further determine a timing of the modified transmission frames within a transmission occasion. The wireless device may detect, during a listening period of the modified transmission frame, a collision and may adjust, based, at least in part, on the detected collision, a remaining transmission schedule for the transmission schedule and/or LBT parameters.Type: ApplicationFiled: June 16, 2022Publication date: September 29, 2022Inventors: Tianyan Pu, Haitong Sun, Wanping Zhang, Wei Zeng, Pengkai Zhao, Dawei Zhang, Wei Zhang, Ping Wang, Sami M. Almalfouh, Johnson O. Sebeni
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Publication number: 20220312505Abstract: Reporting potential impacts of sounding reference signal-switching (SRS-switching) to a base station may include determining that SRS-switching is to be performed by a UE. Based on determining that SRS-switching is to be performed, potential impacts to one or more of a plurality of radio access technologies (RATs) caused by performing SRS-switching while sharing radio frequency (RF) front-ends (RFFE) between at least a subset of the plurality of RATS may be processed. The potential impacts may comprise at least one of transmit-blanking (Tx-blanking) and receive-blanking (Rx-blanking) associated with one or more of the subset of RATs. A communication that indicates the potential impacts of SRS-switching may be encoded for transmission to a base station. The base station may also provide priority configurations for determining how to handle Tx-blanking, Rx-blanking, and SRS-skipping associated with SRS-switching.Type: ApplicationFiled: October 15, 2020Publication date: September 29, 2022Inventors: Pengkai ZHAO, Dawei ZHANG, Edmund J. STOCKS, Fangli XU, Haijing HU, Haitong SUN, Jie CUI, Madhusudan CHAUDHARY, Rajesh AMBATI, Thanigaivelu ELANGOVAN, Wei ZENG, Wen ZHAO, Yang TANG
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Publication number: 20220311477Abstract: Various systems and methods disclosed herein describe improvements for beam management that leverage virtualization across a vertical polarization (V-Pol) and horizontal polarization (H-Pol). One or more of a user equipment (UE) and a base station may include an antenna array comprising V-Pol antenna elements and H-Pol antenna elements. The UE may determine a number of receive (Rx) beam of an Rx beam sweep are needed, signal this number to the base station, and perform the beam sweep according to one or both of the V-Pol and H-Pol. A UE may use group based beam reporting to indicate to the base station a transmit (Tx) beam upon which downlink MIMO using V-Pol and H-Pol may be supported by reporting a same transmission configuration indication (TCI) corresponding to the Tx beam for both a first Rx beam and a second Rx beam in a group based beam reporting message.Type: ApplicationFiled: April 15, 2021Publication date: September 29, 2022Inventors: Haitong SUN, Chunhai YAO, Chunxuan YE, Dawei ZHANG, Hong HE, Oghenekome OTERI, Pengkai ZHAO, Sigen YE, Wei ZENG, Weidong YANG, Wen ZHAO, Yushu ZHANG
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Publication number: 20220264700Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for Fifth Generation New Radio (5G NR) frequency range two (FR2) based communications beam management. The UE may configure, via communications with a base station, serving the UE, a group ID for PUCCH resources within a group of PUCCHs, e.g., for FR2 based communications. The UE may receive, from the base station, an update to one or more PUCCH resources within the group of PUCCHs via a medium access control (MAC) control element (CE) that may include one of a resource ID indicating an update to a PUCCH resource or the group ID to update the group of PUCCH resources. The UE may update, based on the MAC-CE, the one or more PUCCH resources within the group of PUCCHs.Type: ApplicationFiled: April 28, 2022Publication date: August 18, 2022Inventors: Haitong Sun, Dawei Zhang, Hong He, Jia Tang, Pengkai Zhao, Tianyan Pu, Wei Zeng, Wie Zhang, Yuchul Kim, Yushu Zhang
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Publication number: 20220264471Abstract: Apparatuses, systems, and methods to indicate power transmission capability for a wireless device. A wireless device may connect to a base station (BS). The wireless device may transmit information regarding transmit power capability to the BS. The wireless device may indicate support for full power transmit capability for a subset of TPMIs for which it provides full power transmit capability, e.g., in a bitmap. This subset of TPMIs may be less than all of the available TPMIs (i.e., it may be a strict subset of the available TPMIs). Full power transmission capability of these indicated TPMIs may be provided via antenna switching and/or antenna virtualization. The wireless device may perform uplink transmission to the BS according to the transmit power capability indicated in the information. For example, the UE may transmit data using the antenna virtualization related to the subset of the TPMIs.Type: ApplicationFiled: November 28, 2019Publication date: August 18, 2022Inventors: Haitong Sun, Wei Zhang, Tianyan Pu, Pengkai Zhao, Jia Tang, Yushu Zhang, Yuchul Kim, Hong He, Dawei Zhang, Wei Zeng
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Publication number: 20220255613Abstract: Apparatuses, systems, and methods for a wireless device to perform beam management procedures with a base station. A wireless device in communication with a 5G base station may perform measurements and determine constraints relevant to beam selection. The device may select a recommended beam based on the measurements and constraint(s) and indicate the recommended beam to the base station. A recommended uplink beam may not correspond to a recommended downlink beam.Type: ApplicationFiled: April 28, 2022Publication date: August 11, 2022Inventors: Jia Tang, Sami M. Almalfouh, Haitong Sun, Zhu Ji, Wei Zeng, Johnson O. Sebeni, Wei Zhang, Beibei Wang, Dawei Zhang, Pengkai Zhao
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Patent number: 11405095Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for a UE to request a beam quality measurement procedure. A user equipment device may be configured to perform a method including performing transmitting a request to perform a beam quality measurement procedure for downlink receptions (e.g., a P3 procedure) to a base station/network entity, receiving instructions to perform the beam quality measurement procedure from the base station, and transmitting results of the beam quality measurement procedure to the base station. In some embodiments, transmission of the request may be response to at least one trigger condition and/or detection of a condition at the UE. The request may include an indication of a preferred timing offset. The instructions to perform the beam quality measurement procedure may include a schedule for the beam quality measurement.Type: GrantFiled: March 15, 2021Date of Patent: August 2, 2022Assignee: Apple Inc.Inventors: Jia Tang, Beibei Wang, Dawei Zhang, Haitong Sun, Johnson O. Sebeni, Pengkai Zhao, Ping Wang, Wei Zeng, Yang Li, Zhu Ji
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Patent number: 11405980Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for performing a listen again after talk procedure to detect collisions over an access medium. The wireless device may determine a frequency and configuration of modified transmission frames for transmission over an access medium (licensed or unlicensed) and may further determine a timing of the modified transmission frames within a transmission occasion. The wireless device may detect, during a listening period of the modified transmission frame, a collision and may adjust, based, at least in part, on the detected collision, a remaining transmission schedule for the transmission schedule and/or LBT parameters.Type: GrantFiled: September 23, 2019Date of Patent: August 2, 2022Assignee: Apple Inc.Inventors: Tianyan Pu, Haitong Sun, Wanping Zhang, Wei Zeng, Pengkai Zhao, Dawei Zhang, Wei Zhang, Ping Wang, Sami M. Almalfouh, Johnson O. Sebeni
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Publication number: 20220174665Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to group transmissions into one or more groups, e.g., of various priority levels and/or types of transmissions. The UE may resolve collisions, e.g., according to one or more procedures described herein. The UE may transmit the transmissions according to the resolutions.Type: ApplicationFiled: February 14, 2022Publication date: June 2, 2022Inventors: Hong He, Dawei Zhang, Haitong Sun, Jia Tang, Pengkai Zhao, Wei Zeng, Wei Zhang, Yuchul Kim
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Patent number: 11349545Abstract: Apparatuses, systems, and methods for a wireless device to perform beam management procedures with a base station. A wireless device in communication with a 5G base station may perform measurements and determine constraints relevant to beam selection. The device may select a recommended beam based on the measurements and constraint(s) and indicate the recommended beam to the base station. A recommended uplink beam may not correspond to a recommended downlink beam.Type: GrantFiled: September 27, 2019Date of Patent: May 31, 2022Assignee: Apple Inc.Inventors: Jia Tang, Sami M. Almalfouh, Haitong Sun, Zhu Ji, Wei Zeng, Johnson O. Sebeni, Wei Zhang, Beibei Wang, Dawei Zhang, Pengkai Zhao
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Patent number: 11330668Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for Fifth Generation New Radio (5G NR) frequency range two (FR2) based communications beam management. The UE may configure, via communications with a base station, serving the UE, a group ID for PUCCH resources within a group of PUCCHs, e.g., for FR2 based communications. The UE may receive, from the base station, an update to one or more PUCCH resources within the group of PUCCHs via a medium access control (MAC) control element (CE) that may include one of a resource ID indicating an update to a PUCCH resource or the group ID to update the group of PUCCH resources. The UE may update, based on the MAC-CE, the one or more PUCCH resources within the group of PUCCHs.Type: GrantFiled: September 15, 2020Date of Patent: May 10, 2022Assignee: Apple Inc.Inventors: Haitong Sun, Dawei Zhang, Hong He, Jia Tang, Pengkai Zhao, Tianyan Pu, Wei Zeng, Wei Zhang, Yuchul Kim, Yushu Zhang