Patents by Inventor Minghai Feng
Minghai Feng 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: 20240015495Abstract: An electronic device may include wireless circuitry with first and second receivers. Each receiver may include circuitry for receiving radio-frequency signals using a first radio access technology (RAT) and using second or additional RATs. The wireless circuitry may perform system selection in which the receivers attempt to acquire a signal transmitted by a base station using different RATs. The first receiver and the second receiver may concurrently perform system selection in which the first receiver performs a band scan over the first RAT while the second receiver concurrently performs a band scan over a second or additional RAT. Additional band scans may be performed as needed until a signal is acquired. Once a signal is acquired, the wireless circuitry may establish cellular communications with the wireless base station based on the acquired signal. This may minimize the amount of time required to begin cellular telephone communications in many situations.Type: ApplicationFiled: July 8, 2022Publication date: January 11, 2024Inventors: Minghai Feng, Weiku Zhai, Tao Zeng, Cheng Li, Yaoqi Yan, Ying Zhang, Jishan Gao, Yong Ba, Ruirui Zong
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Patent number: 10985895Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines an interference type between a time division duplex (TDD) configuration subframe of a serving cell and a corresponding TDD configuration subframe of a neighboring cell, and sets a transmit power for an apparatus in the serving cell based on the interference type. The apparatus in the serving cell may be a user equipment (UE), in which case the apparatus applies a set of uplink (UL) open loop power control parameters for the UE. The apparatus in the serving cell may be a base station (eNB), in which case a DL transmit power is set for the eNB. Depending on the interference type, the DL transmit power may be a fixed, full power DL transmission or an adjusted DL transmission.Type: GrantFiled: September 22, 2017Date of Patent: April 20, 2021Assignee: QUALCOMM IncorporatedInventors: Minghai Feng, Jiming Guo, Neng Wang, Jilei Hou, Hao Xu, Peter Gaal
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Patent number: 10868647Abstract: A method, a computer program product, and an apparatus for separating a cell cluster to two or more cell clusters are provided. The cell cluster may be separated into two or more cell clusters in order to mitigate interference between cells while allowing for TDD subframe configuration flexibility. The method identifies at least one separating cell in a cell cluster, the cell cluster including at least two cells having a common TDD subframe configuration, where a coupling loss between one cell in the cell cluster and at least another cell in the cell cluster is lower than a predefined threshold. The method separates the cell cluster based on the at least one separating cell into at least a first cell cluster and a second cell cluster and sets a first TDD subframe configuration for the first cell cluster and a second TDD subframe configuration for the second cell cluster.Type: GrantFiled: April 7, 2013Date of Patent: December 15, 2020Assignee: QUALCOMM IncorporatedInventors: Minghai Feng, Jiming Guo, Neng Wang, Jilei Hou, Hao Xu, Peter Gaal
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Patent number: 10244518Abstract: Aspects of the present disclosure relate to techniques for dynamic indication of Time Division Duplex (TDD) Uplink (UL)/Downlink (DL) subframe configuration to User Equipments. A base station may identify one or more anchor subframes and one or more non-anchor subframes in a frame. The base station may dynamically change a UL/DL configuration of the frame used for communicating with a plurality of User Equipments (UEs) and signal the changed configuration using a common downlink control channel capable of being interpreted by the plurality of UEs in at least one of the one or more anchor subframes of the frame.Type: GrantFiled: July 14, 2014Date of Patent: March 26, 2019Assignee: QUALCOMM IncorporatedInventors: Wanshi Chen, Hao Xu, Peter Gaal, Neng Wang, Chao Wei, Minghai Feng
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Patent number: 10111188Abstract: Methods, systems, and-devices are described for interference mitigation in a time-division duplex(TDD)wireless communication system. First and second subframe types may be identified for TDD subframes to be transmitted using the system. Different power control parameters associated with each subframe type may be identified based on transmission directions in neighboring cells for the particular subframes. One or more TDD subframes to be transmitted may be identified as a first or second subframe type, and power control may be applied to the transmitted subframes according the power control parameter associated with the subframe type. The identification of subframes and power control parameters to be applied to each type of subframe may be transmitted, for example, to a user equipment(UE). The information may be transmitted to a UE, for example, via radio resource control(RRC)signaling or via a physical layer control channel.Type: GrantFiled: May 9, 2014Date of Patent: October 23, 2018Assignee: QUALCOMM IncorporatedInventors: Minghai Feng, Neng Wang, Chao Wei, Jilei Hou
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Patent number: 10009904Abstract: Interference mitigation solutions are disclosed for interference experienced based on asymmetric uplink (UL)/downlink (DL) slot configuration. The aggressor/victim network entities are identified using either measurement or static/semi-static means, such that the victim network entities that may be impacted by interference from aggressor network entity transmissions are identified. Inter Cell Interference Coordination (ICIC) mechanisms are extended to negotiate and address scheduling that intelligently mitigates interference that occurs in the colliding slots.Type: GrantFiled: May 24, 2013Date of Patent: June 26, 2018Assignee: QUALCOMM IncorporatedInventors: Neng Wang, Jilei Hou, Jiming Guo, Minghai Feng
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Patent number: 10009164Abstract: In aspects, methods and apparatus for utilizing a reconfiguration timer for updating TDD configuration are provided. Certain aspects of the present disclosure propose methods and apparatus for improving system performance while using adaptive uplink-downlink reconfiguration in a time division duplex (TDD) system. For certain aspects, a reconfiguration timer may be utilized along with a signaling scheme, in order to enjoy benefits of the adaptive uplink-downlink reconfiguration with minimum signaling overhead.Type: GrantFiled: January 28, 2013Date of Patent: June 26, 2018Assignee: QUALCOMM IncorporatedInventors: Jilei Hou, Minghai Feng, Neng Wang, Chao Wei
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Patent number: 9986501Abstract: Methods and apparatus are disclosed for interference management. The interference management is based on dynamic point selection or semi-static point selection. The method includes determining interference at a plurality of network nodes. The method includes selecting a transmission point from the plurality of network nodes for a transmission to at least one mobile entity based on the determined interference.Type: GrantFiled: April 9, 2013Date of Patent: May 29, 2018Assignee: QUALCOMM IncorporatedInventors: Minghai Feng, Neng Wang, Chao Wei, Jilei Hou
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Publication number: 20180013539Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines an interference type between a time division duplex (TDD) configuration subframe of a serving cell and a corresponding TDD configuration subframe of a neighboring cell, and sets a transmit power for an apparatus in the serving cell based on the interference type. The apparatus in the serving cell may be a user equipment (UE), in which case the apparatus applies a set of uplink (UL) open loop power control parameters for the UE. The apparatus in the serving cell may be a base station (eNB), in which case a DL transmit power is set for the eNB. Depending on the interference type, the DL transmit power may be a fixed, full power DL transmission or an adjusted DL transmission.Type: ApplicationFiled: September 22, 2017Publication date: January 11, 2018Inventors: Minghai FENG, Jiming GUO, Neng WANG, Jilei HOU, Hao XU, Peter GAAL
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Patent number: 9826528Abstract: Methods, systems, and devices are described for reconfiguring a user equipment (UE) to operate in a reconfigured TDD UL-DL configuration. An initial uplink-downlink (UL-DL) configuration for TDD communication may be provided for communication between an e Node B and a UE. One or more subframes within each frame transmitted using the initial UL-DL configuration may be identified as flexible subframes. The identification of flexible subframes may permit the identification of timing for HARQ transmissions that does not change when a reconfiguration takes place. A different UL-DL configuration may be transmitted to the UE, in which at least one flexible subframe is to be changed from an uplink subframe to a downlink subframe. The different UL-DL configuration may be transmitted by, for example, a pseudo-uplink grant to the UE, which indicates that the UE is to reconfigure one or more flexible subframes from uplink to downlink transmission.Type: GrantFiled: January 16, 2014Date of Patent: November 21, 2017Inventors: Chao Wei, Neng Wang, Minghai Feng, Jilei Hou
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Patent number: 9794051Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines an interference type between a time division duplex (TDD) configuration subframe of a serving cell and a corresponding TDD configuration subframe of a neighboring cell, and sets a transmit power for an apparatus in the serving cell based on the interference type. The apparatus in the serving cell may be a user equipment (UE), in which case the apparatus applies a set of uplink (UL) open loop power control parameters for the UE. The apparatus in the serving cell may be a base station (eNB), in which case a DL transmit power is set for the eNB. Depending on the interference type, the DL transmit power may be a fixed, full power DL transmission or an adjusted DL transmission.Type: GrantFiled: October 8, 2012Date of Patent: October 17, 2017Inventors: Minghai Feng, Jiming Guo, Neng Wang, Jilei Hou, Hao Xu, Peter Gaal
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Patent number: 9787437Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus groups subframes of a time division duplex (TDD) configuration of a serving cell into a set of anchor subframes and a set of non-anchor subframes. The apparatus also separately bundles positive acknowledgements (ACKs) and/or negative acknowledgements (NACKs) of the anchor subframes, and ACKs and/or NACKs of the non-anchor subframes.Type: GrantFiled: September 12, 2013Date of Patent: October 10, 2017Assignee: QUALCOMM IncorporatedInventors: Minghai Feng, Jiming Guo, Neng Wang, Jilei Hou, Hao Xu, Peter Gaal
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Publication number: 20160165578Abstract: Aspects of the present disclosure relate to techniques for dynamic indication of Time Division Duplex (TDD) Uplink (UL)/Downlink (DL) subframe configuration to User Equipments. A base station may identify one or more anchor subframes and one or more non-anchor subframes in a frame. The base station may dynamically change a UL/DL configuration of the frame used for communicating with a plurality of User Equipments (UEs) and signal the changed configuration using a common downlink control channel capable of being interpreted by the plurality of UEs in at least one of the one or more anchor subframes of the frame.Type: ApplicationFiled: July 14, 2014Publication date: June 9, 2016Inventors: Wanshi CHEN, Hao XU, Peter GAAL, Wang NENG, Chao WEI, Minghai FENG
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Publication number: 20160066288Abstract: Methods, systems, and-devices are described for interference mitigation in a time-division duplex(TDD)wireless communication system. First and second subframe types may be identified for TDD subframes to be transmitted using the system. Different power control parameters associated with each subframe type may be identified based on transmission directions in neighboring cells for the particular subframes. One or more TDD subframes to be transmitted may be identified as a first or second subframe type, and power control may be applied to the transmitted subframes according the power control parameter associated with the subframe type. The identification of subframes and power control parameters to be applied to each type of subframe may be transmitted, for example, to a user equipment(UE). The information may be transmitted to a UE, for example, via radio resource control(RRC)signaling or via a physical layer control channel.Type: ApplicationFiled: May 9, 2014Publication date: March 3, 2016Inventors: Minghai Feng, Neng Wang, Chao Wei, Jilei Hou
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Publication number: 20160056907Abstract: Methods, systems, and devices are described for interference mitigation between neighboring cells through the use of cell clusters and virtual logical cell clusters. Cells may be added to a cell cluster with a first cell when a level of interference coupling between the first cell and one or more neighboring cells exceeds a first threshold. One or more other cells may be added to a virtual logical cell cluster with the first cell when the level of interference coupling is between a second threshold and the first threshold, the second threshold being less than the first threshold. Interference mitigation between cells of cell clusters and/or virtual logical cell clusters may be performed. Interference mitigation may be accomplished through, for example, coordination of TDD uplink-downlink (UL-DL) configurations for cell clusters and scheduling-dependent interference management (SDIM) for virtual logical cell clusters.Type: ApplicationFiled: May 8, 2014Publication date: February 25, 2016Inventors: Chao Wei, Minghai Feng, Neng Wang, Jilei Hou
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Publication number: 20160044594Abstract: Methods and apparatus are disclosed for interference management. The interference management is based on dynamic point selection or semi-static point selection. The method includes determining interference at a plurality of network nodes. The method includes selecting a transmission point from the plurality of network nodes for a transmission to at least one mobile entity based on the determined interference.Type: ApplicationFiled: April 9, 2013Publication date: February 11, 2016Applicant: QUAL COMM IncorporatedInventors: Minghai Feng, Neng Wang, Chao Wei, Jilei Hou
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Publication number: 20160029396Abstract: Certain aspects of the present disclosure relate to methods and apparatus for measuring and mitigating interference. Such interference may include base station to base station (eNB to eNB) interference and/or UE to UE interference. A base station may determine a first subframe configuration for the base station and a second subframe configuration for one or more other base stations, wherein the first and second subframe configurations have different ratios of uplink to downlink portions. The base station may measure interference caused by the one or more other base stations based on reference signals transmitted in downlink portions of the second subframe configuration.Type: ApplicationFiled: April 9, 2014Publication date: January 28, 2016Inventors: Minghai FENG, Neng Wang, Chao WEI, Jilei HOU
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Publication number: 20150341927Abstract: Methods, systems, and devices are described for reconfiguring a user equipment (UE) to operate in a reconfigured TDD UL-DL configuration. An initial uplink-downlink (UL-DL) configuration for TDD communication may be provided for communication between an e Node B and a UE. One or more subframes within each frame transmitted using the initial UL-DL configuration may be identified as flexible subframes. The identification of flexible subframes may permit the identification of timing for HARQ transmissions that does not change when a reconfiguration takes place. A different UL-DL configuration may be transmitted to the UE, in which at least one flexible subframe is to be changed from an uplink subframe to a downlink subframe. The different UL-DL configuration may be transmitted by, for example, a pseudo-uplink grant to the UE, which indicates that the UE is to reconfigure one or more flexible subframes from uplink to downlink transmission.Type: ApplicationFiled: January 16, 2014Publication date: November 26, 2015Inventors: Chao Wei, Neng Wang, Minghai Feng, Jilei Hou
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Publication number: 20150318974Abstract: In aspects, methods and apparatus for utilizing a reconfiguration timer for updating TDD configuration are provided. Certain aspects of the present disclosure propose methods and apparatus for improving system performance while using adaptive uplink-downlink reconfiguration in a time division duplex (TDD) system. For certain aspects, a reconfiguration timer may be utilized along with a signaling scheme, in order to enjoy benefits of the adaptive uplink-downlink reconfiguration with minimum signaling overhead.Type: ApplicationFiled: January 28, 2013Publication date: November 5, 2015Applicant: QUALCOMM INCORPORATEDInventors: Jilei HOU, Minghai FENG, Neng WANG, Chao WEI
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Publication number: 20150270933Abstract: A method, a computer program product, and an apparatus for separating a cell cluster to two or more cell clusters are provided. The cell cluster may be separated into two or more cell clusters in order to mitigate interference between cells while allowing for TDD subframe configuration flexibility. The method identifies at least one separating cell in a cell cluster, the cell cluster including at least two cells having a common TDD subframe configuration, where a coupling loss between one cell in the cell cluster and at least another cell in the cell cluster is lower than a predefined threshold. The method separates the cell cluster based on the at least one separating cell into at least a first cell cluster and a second cell cluster and sets a first TDD subframe configuration for the first cell cluster and a second TDD subframe configuration for the second cell cluster.Type: ApplicationFiled: April 7, 2013Publication date: September 24, 2015Inventors: Minghai Feng, Jiming Guo, Neng Wang, Jilei Hou, Hao Xu, Peter Gaal