Patents by Inventor Jianchi Zhu
Jianchi Zhu 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: 20240064744Abstract: The present disclosure relates to a method, device and system for indicating and obtaining a number of PUCCH repetitions. The method includes: configuring a plurality of physical uplink control channel (PUCCH) resources for a user equipment (UE) through radio resource control signaling; determining a number of repetitions corresponding to each PUCCH resource of the plurality of PUCCH resources by using a predefined rule; determining a current number of repetitions of a PUCCH transmission by the UE; determining a current resource index number of a resource for the PUCCH transmission by the UE corresponding to the current number of repetitions; and sending the current resource index number to the UE, to indicate the current number of repetitions, so that UE decodes the received current resource index number and determines the current number of repetitions.Type: ApplicationFiled: July 29, 2021Publication date: February 22, 2024Inventors: Nanxi LI, Jianchi ZHU, Jing GUO, Hang YIN, Xiaoming SHE, Peng CHEN
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Publication number: 20230328724Abstract: The present disclosure relates to the field of wireless communications, and provides a transmitter switching method, a terminal, a base station, a communication system, a transmitter switching apparatus, and a non-transitory computer readable storage medium. The transmitter switching method includes: a base station sends radio resource control extended signaling to a terminal to instruct a transmitter of the terminal to enter a working mode of time division switching between uplink frequency bands, at least one uplink frequency band having multiple uplink carriers; and the base station sends physical downlink control channel scheduling information to the terminal to instruct the transmitter of the terminal to transmit an uplink frequency band used by uplink data.Type: ApplicationFiled: April 28, 2021Publication date: October 12, 2023Inventors: Shan YANG, Jianchi ZHU, Peng CHEN, Xiaoming SHE, Bo LIU, Xiaoyu QIAO
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Patent number: 11722182Abstract: Disclosed are a data multiplexing transmission method, a base station, a terminal, and a storage medium. The method comprises: a base station sends service resource occupation information corresponding to a first terminal by means of a control channel, so that a second terminal performs data transmission processing on the basis of the service resource occupation information when detecting the service resource occupation information sent on the control channel. The method, base station, terminal, and storage medium provided by the present application provide a resource multiplexing solution, solve the problem of service resource conflicts between different users, and improve the utilization efficiency of uplink transmission resources.Type: GrantFiled: June 9, 2020Date of Patent: August 8, 2023Assignee: CHINA TELECOM CORPORATION LIMITEDInventors: Jing Guo, Jianchi Zhu, Nanxi Li, Xiaoming She, Peng Chen
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Publication number: 20230217376Abstract: Provided are a method for reporting and controlling power, and a terminal, a base station and a communication system, which relate to the field of wireless communications. The method for reporting power comprises: a terminal determining whether transmitter switching is supported; the terminal determining whether the power class when one set of transmitters is utilized is the same as the power class when multiple sets of transmitters are utilized; and where the terminal supports transmitter switching and the power class when one set of transmitters is utilized is different from the power class when multiple sets of transmitters are utilized, the terminal reporting, to a base station, capability information of the terminal supporting multiple power classes, such that the base station controls the transmitting power of the terminal according to the capability information of the terminal supporting multiple power classes, thereby improving an uplink coverage range.Type: ApplicationFiled: May 10, 2021Publication date: July 6, 2023Inventors: Shan YANG, Bo LIU, Jianchi ZHU, Peng CHEN, Xiaoming SHE, Xiaoyu QIAO
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Publication number: 20220256523Abstract: Disclosed are a data multiplexing transmission method, a base station, a terminal, and a storage medium. The method comprises: a base station sends service resource occupation information corresponding to a first terminal by means of a control channel, so that a second terminal performs data transmission processing on the basis of the service resource occupation information when detecting the service resource occupation information sent on the control channel. The method, base station, terminal, and storage medium provided by the present application provide a resource multiplexing solution, solve the problem of service resource overlaps between different users, and improve the utilization efficiency of uplink transmission resources.Type: ApplicationFiled: May 22, 2020Publication date: August 11, 2022Inventors: Jianchi ZHU, Xiaoming SHE, Peng CHEN
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Publication number: 20220231732Abstract: Disclosed are a data multiplexing transmission method, a base station, a terminal, and a storage medium. The method comprises: a base station sends service resource occupation information corresponding to a first terminal by means of a control channel, so that a second terminal performs data transmission processing on the basis of the service resource occupation information when detecting the service resource occupation information sent on the control channel. The method, base station, terminal, and storage medium provided by the present application provide a resource multiplexing solution, solve the problem of service resource conflicts between different users, and improve the utilization efficiency of uplink transmission resources.Type: ApplicationFiled: June 9, 2020Publication date: July 21, 2022Inventors: Jing GUO, Jianchi ZHU, Nanxi LI, Xiaoming SHE, Peng CHEN
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Patent number: 9647806Abstract: Provided is a method for configuring coordinated multipoint transmission (CoMP) of the present invention. The method includes: providing a transmission mode to support CoMP and, at a base station (eNB), configuring the transmission mode to support CoMP to a user terminal (UE) by radio resource control (RRC) signaling. According to the method of the present invention, it becomes possible to configure CoMP so that the LTE system can support the CoMP function.Type: GrantFiled: April 23, 2012Date of Patent: May 9, 2017Assignee: NTT DOCOMO, INC.Inventors: Satoshi Nagata, Jianchi Zhu, Mingju Li, Xiaoming She, Lan Chen
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Patent number: 9596644Abstract: A macro eNB (MeNB) triggers a small cell (eLA eNB) to transmit a sequence on a second frequency band using a triggering command that indicates a time to transmit the sequence. On a first frequency band the MeNB triggers at least one user equipment UE to detect the sequence on the second band, and this trigger also has a first indication of when the sequence will be transmitted. From a second indication the MeNB receives on the first band from the at least one UE in response to the triggering of the UE the MeNB can determine whether the UE is located proximate to the small cell. The indication may be as little as a single bit indicating whether the UE detected or not the sequence. The first and second bands may be on first and second component carriers that may not be synchronized to one another, and the aperiodic nature of the triggered sequences and detection reports saves UE power.Type: GrantFiled: September 3, 2012Date of Patent: March 14, 2017Assignee: Nokia Technologies OyInventors: Yuantao Zhang, Zhi Zhang, Jianchi Zhu, Haipeng Lei, Kodo Shu
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Patent number: 9572139Abstract: Communication systems may benefit from a control channel for contention based transmission and collision avoidance. For example, communication systems of the third generation partnership project (3GPP) long term evolution (LTE) and LTE-Advanced may use such control channels for contention based transmission. In particular, such control channels may be valuable with respect to LTE-based local area network (LTE-LAN). A method, according to certain embodiments, may include preparing control information for a contention based physical uplink shared channel. The method may also include transmitting and/or receiving the control information on a physical uplink control channel and a control only physical uplink shared channel, or only on the control only physical uplink shared channel.Type: GrantFiled: August 3, 2012Date of Patent: February 14, 2017Assignee: NOKIA TECHNOLOGIES OYInventors: Jianchi Zhu, Zhi Zhang, Haipeng Lei, Yuantao Zhang, Frank Frederiksen
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Patent number: 9537615Abstract: A method including utilizing HARQ process grouping and subframe grouping to carry ACK/NACK transmissions, wherein the HARQ process grouping divides HARQ processes into one or more groups, and the subframe grouping divides a radio frame into one or more groups. The method may further include carrying ACK/NACK transmissions.Type: GrantFiled: June 28, 2012Date of Patent: January 3, 2017Assignee: NOKIA CORPORATIONInventors: Jianchi Zhu, Zhi Zhang, Haipeng Lei, Kodo Shu
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Patent number: 9444652Abstract: In the present disclosure, the UE apparatus is classified by type and the demodulation information to use in channel estimation of MUI signals is determined based on the type of the UE apparatus. The channel estimating apparatus for MUI signals has: a user type determining circuit that determines whether a UE apparatus corresponding to an own station belongs to a first type user or a second type user and determines demodulation information to use in channel estimation of MUI signals based on the type of the UE apparatus corresponding to the own station; and a channel estimating circuit that performs channel estimation of a multi-user interference signal based on the determined demodulation information to use in channel estimation of MUI signals. With this structure, it is possible to improve channel estimation accuracy and further to improve the performance of data reception and user and cell throughputs.Type: GrantFiled: April 20, 2012Date of Patent: September 13, 2016Assignee: NTT DOCOMO, INC.Inventors: Satoshi Nagata, Hidekazu Taoka, Jianchi Zhu, Xiaoming She, Lan Chen
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Patent number: 9425931Abstract: A method for uplink control signaling in CoMP operation is described. The method includes allocating a first set of CCEs for an associated transmission from an AP to an associated UE. The method also includes transmitting, to a RRH, a message including an indication of the first set of CCEs. The message including the indication of a first set of CCEs is received at the RRH. The method also includes allocating, by the RRH, a second set of CCEs for an associated transmission from the RIM to an associated UE. A UE receives the transmission of downlink control information beginning at a first CCE. The method includes receiving a PUCCH resource offset parameter, the PUCCH resource offset parameter indicating the reception point for the UE. The UE determines an uplink control channel resource based on the first CCE and the PUCCH resource offset parameter.Type: GrantFiled: March 2, 2012Date of Patent: August 23, 2016Assignee: Nokia Technologies OyInventors: Yuanrong Lan, Jianchi Zhu, Haipeng Lei, Kodo Shu
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Patent number: 9401830Abstract: In order to recognize a relatively accurate channel state of each UE, a channel of the UE is reconfigured based on channel phase information and channel quality information reported from the UE to obtain a channel matrix of the UE. Besides, a channel of the UE is reconfigured based on channel phase information and channel quality information reported from the UE to obtain a channel matrix of the UE, a precoding matrix of the UE is determined based on the channel matrix of the UE, and precoding is performed on data to transmit to the UE, using the precoding matrix.Type: GrantFiled: May 10, 2012Date of Patent: July 26, 2016Assignee: NTT DOCOMO, INC.Inventors: Satoshi Nagata, Jianchi Zhu, Xiaoming She, Xiang Yun, Yu Jiang, Lan Chen, Hirohito Suda
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Publication number: 20150365207Abstract: A method for uplink control signaling in CoMP operation is described. The method includes allocating a first set of CCEs for an associated transmission from an AP to an associated UE. The method also includes transmitting, to a RRH, a message including an indication of the first set of CCEs. The message including the indication of a first set of CCEs is received at the RRH. The method also includes allocating, by the RRH, a second set of CCEs for an associated transmission from the RIM to an associated UE. A UE receives the transmission of downlink control information beginning at a first CCE. The method includes receiving a PUCCH resource offset parameter, the PUCCH resource offset parameter indicating the reception point for the UE. The UE determines an uplink control channel resource based on the first CCE and the PUCCH resource offset parameter.Type: ApplicationFiled: March 2, 2012Publication date: December 17, 2015Inventors: Yuanrong Lan, Jianchi Zhu, Haipeng Lei, Kodo Shu
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Publication number: 20150327245Abstract: Communication systems may benefit from a control channel for contention based transmission and collision avoidance. For example, communication systems of the third generation partnership project (3GPP) long term evolution (LTE) and LTE-Advanced may use such control channels for contention based transmission. In particular, such control channels may be valuable with respect to LTE-based local area network (LTE-LAN). A method, according to certain embodiments, may include preparing control information for a contention based physical uplink shared channel. The method may also include transmitting and/or receiving the control information on a physical uplink control channel and a control only physical uplink shared channel, or only on the control only physical uplink shared channel.Type: ApplicationFiled: August 3, 2012Publication date: November 12, 2015Applicant: Nokia CorporationInventors: Jianchi Zhu, Zhi Zhang, Haipeng Lei, Yuantao Zhang, Frank Frederiksen
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Publication number: 20150237610Abstract: A method for neighbor cell assisted TDD configurations is described. The method includes receiving, from a serving cell, a first configuration. The first configuration is a cell specific configuration which indicates a first set of individual configurations for each of a plurality of SFs. A second configuration is received from the serving cell. The second configuration is a UE specific configuration which indicates a second set of individual configurations for each of the plurality of SFs. The method includes determining whether a given SF is configured differently in the first configuration than in the second configuration. In response to determining that the given SF is configured differently in the first configuration than in the second configuration, the method also includes communicating, with a neighbor cell, in the given SF as configured in the second configuration. Apparatus and computer readable media are also described.Type: ApplicationFiled: November 6, 2012Publication date: August 20, 2015Inventors: Yuantao Zhang, Haipeng Lei, Jianchi Zhu, Zhi Zhang, Kodo Shu
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Publication number: 20150230153Abstract: A macro eNB (MeNB) triggers a small cell (eLA eNB) to transmit a sequence on a second frequency band using a triggering command that indicates a time to transmit the sequence. On a first frequency band the MeNB triggers at least one user equipment UE to detect the sequence on the second band, and this trigger also has a first indication of when the sequence will be transmitted. From a second indication the MeNB receives on the first band from the at least one UE in response to the triggering of the UE the MeNB can determine whether the UE is located proximate to the small cell. The indication may be as little as a single bit indicating whether the UE detected or not the sequence. The first and second bands may be on first and second component carriers that may not be synchronized to one another, and the aperiodic nature of the triggered sequences and detection reports saves UE power.Type: ApplicationFiled: September 3, 2012Publication date: August 13, 2015Applicant: NOKIA CORPORATIONInventors: Yuantao Zhang, Zhi Zhang, Jianchi Zhu, Haipeng Lei, Kodo Shu
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Publication number: 20150195854Abstract: Systems and techniques for contention based transmission in a cellular network. A physical uplink shared channel is used for contention based transmission by a device such as a user equipment, based at least in part on information provided by a physical uplink control channel associated with the physical uplink shared channel. In addition, a base station such as an eNodeB may respond to a physical uplink shared channel by providing a common physical downlink shared channel providing acknowledge ment/negative acknowledgement information. In addition, the base station may provide a physical downlink control channel indicating the common physical downlink shared channel.Type: ApplicationFiled: July 3, 2012Publication date: July 9, 2015Applicant: Nokia CorporationInventors: Jianchi Zhu, Zhi Zhang, Haipeng Lei, Kodo Shu
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Publication number: 20150126210Abstract: An apparatus and method for interference-avoidance in a hybrid communications network is provided. The method includes obtaining related information for interfering cellular user equipment in the hybrid network, reporting the related information for the interfering cellular user equipment to an evolved Node B (eNB), receiving a list of component carriers and competition related information for the component carriers, and selecting one or more proper component carriers from the list of component carriers according to certain rules.Type: ApplicationFiled: June 4, 2012Publication date: May 7, 2015Applicant: NOKIA CORPORATIONInventors: Tao Peng, Yuan Qi, Ziyang Liu, Kodo Shu, Jianchi Zhu
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Publication number: 20150103775Abstract: A method including utilizing HARQ process grouping and subframe grouping to carry ACK/NACK transmissions, wherein the HARQ process grouping divides HARQ processes into one or more groups, and the subframe grouping divides a radio frame into one or more groups. The method may further include carrying ACK/NACK transmissions.Type: ApplicationFiled: June 28, 2012Publication date: April 16, 2015Applicant: NOKIA CORPORATIONInventors: Jianchi Zhu, Zhi Zhang, Haipeng Lei, Kodo Shu