Patents by Inventor Tamrakar Rakesh
Tamrakar Rakesh 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: 20230421318Abstract: An uplink transmission method and apparatus, and a terminal, and pertains to the field of mobile communication. The method includes: determining an available or valid or nominal first slot for uplink transmission before the 1st symbol of uplink transmission is sent; and determining an actual transmission behavior in the first slot.Type: ApplicationFiled: September 11, 2023Publication date: December 28, 2023Applicant: VIVO MOBILE COMMUNICATION CO., LTD.Inventors: Na LI, Kai WU, Tamrakar RAKESH
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Publication number: 20230337115Abstract: Disclosed are a method and apparatus for transmitting an initial access signal, thus solving the existing problem wherein transmitting and detecting of synchronization signals cannot be applied to large-scale network coverage of a future communication system. The method comprises: determining at least one to-be-transmitted identification information of a synchronization block, the synchronization block comprising at least two components for transmitting an initial access signal, and different components occupying different time-frequency resources of the synchronization block; determining an initial access signal transmitted by each component in the synchronization block according to the identification information; and determining a time-frequency resource occupied by each component in the synchronization block and transmitting the initial access signal of the component on the time-frequency resource occupied by each component.Type: ApplicationFiled: June 25, 2023Publication date: October 19, 2023Inventors: Qiubin GAO, Runhua CHEN, Hui LI, Tamrakar RAKESH, Qiuping HUANG, Yu YANG, Yang SONG, Xin SU, Mengjun WANG, Chuanjun LI
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Patent number: 11743805Abstract: Disclosed are a method and apparatus for transmitting an initial access signal, thus solving the existing problem wherein transmitting and detecting of synchronization signals cannot be applied to large-scale network coverage of a future communication system. The method comprises: determining at least one to-be-transmitted identification information of a synchronization block, the synchronization block comprising at least two components for transmitting an initial access signal, and different components occupying different time-frequency resources of the synchronization block; determining an initial access signal transmitted by each component in the synchronization block according to the identification information; and determining a time-frequency resource occupied by each component in the synchronization block and transmitting the initial access signal of the component on the time-frequency resource occupied by each component.Type: GrantFiled: June 8, 2017Date of Patent: August 29, 2023Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Qiubin Gao, Runhua Chen, Hui Li, Tamrakar Rakesh, Qiuping Huang, Yu Yang, Yang Song, Xin Su, Mengjun Wang, Chuanjun Li
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Patent number: 11528120Abstract: Disclosed in the present application are a data transmission method and apparatus and a computer storage medium, to map a data layer to a DMRS port used in transmission according to a preset DMRS port ordering rule, and perform transmission. The data transmission method provided in an embodiment of the present application comprises: determining a preset demodulation reference signal (DMRS) port ordering rule; and mapping a data layer to a DMRS port used in transmission according to the preset DMRS port ordering rule, and sending the data layer to a terminal.Type: GrantFiled: October 11, 2018Date of Patent: December 13, 2022Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Xin Su, Runhua Chen, Qiubin Gao, Tamrakar Rakesh
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Patent number: 11405157Abstract: Disclosed are a data transmission method and apparatus and a computer storage medium, used to arrive at the mapping a data layer, based on a predefined DMRS port ordering rule, onto the DMRS port used during transmission to transmit the data layer. The present application provides a data transmission method, comprising: determining a predefined demodulation reference signal (DMRS) port ordering rule; and mapping, according to the predefined DMRS port ordering rule, a data layer onto the DMRS port used during transmission to send the data layer to a terminal.Type: GrantFiled: December 12, 2018Date of Patent: August 2, 2022Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Xin Su, Qiubin Gao, Tamrakar Rakesh, Runhua Chen
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Patent number: 11342966Abstract: The present application discloses an information indicating and determining method and apparatus, and a computer storage medium, being used for indicating QCL group information of a DMRS port, enabling a terminal to determine the QCL group information of the DMRS port. The embodiments of the present application provide an information indicating method, comprising: determining QCL group information of a demodulation reference signal DMRS port; and notifying a terminal of the QCL group information.Type: GrantFiled: December 17, 2018Date of Patent: May 24, 2022Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Xin Su, Qiubin Gao, Tamrakar Rakesh, Runhua Chen
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Patent number: 11323170Abstract: The present invention relates to the technical field of wireless communications, and in particular, to a beam training method and device, for use in resolving the problems in the prior art of excessive time-consuming of a beam training process, large overhead of training signals, and relatively low efficiency. According to embodiments of the present invention, a transmit device sends beam training signals in two times. The first sending of a transmit beam training signal is for a receive device to select a transmit beam using a selected receive beam and report the transmit beam. The second sending is that the transmit device sends a receive beam training signal according to the transmit beam information report of the receive device, so as to train the received beam of the receive device.Type: GrantFiled: June 7, 2017Date of Patent: May 3, 2022Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Yang Song, Qiubin Gao, Runhua Chen, Tamrakar Rakesh, Xin Su, Chuanjun Li, Mengjun Wang, Yu Yang, Hui Li, Qiuping Huang
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Patent number: 11310014Abstract: Disclosed are a method and a device for information indication and resource determination, and a computer storage medium, which are used to indicate and determine the resource occupation state of a DMRS port, and to save a signaling overhead. The information indication method provided in an embodiment of the present application comprises: determining indication information on a demodulation reference signal (DMRS) port resource that a terminal needs to occupy, according to a preset configuration list, wherein the configuration list comprises DMRS group information and DMRS port information; and notifying the terminal of the indication information.Type: GrantFiled: October 19, 2018Date of Patent: April 19, 2022Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Baojuan Guo, Tamrakar Rakesh
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Patent number: 11245439Abstract: The present application discloses an information indicating and determining method and apparatus, and a computer storage medium, being used for indicating QCL group information of a DMRS port, enabling a terminal to determine the QCL group information of the DMRS port. The embodiments of the present application provide an information indicating method, comprising: determining QCL group information of a demodulation reference signal DMRS port; and notifying a terminal of the QCL group information.Type: GrantFiled: December 17, 2018Date of Patent: February 8, 2022Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Xin Su, Qiubin Gao, Tamrakar Rakesh, Runhua Chen
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Patent number: 11218209Abstract: Disclosed are an information transmission method and device for improving CSI feedback performance and providing finer CSI feedback. The information transmission method of the present invention comprises: determining a quantity of layers transmitted on a channel; and determining, according to the quantity of the layers transmitted on the channel, channel state information (CSI) fed back for the respective layers, and transmitting the same, and the CSI fed back for the respective layers comprises information about multi-level beams.Type: GrantFiled: December 19, 2018Date of Patent: January 4, 2022Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Deshan Miao, Qiubin Gao, Runhua Chen, Tamrakar Rakesh
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Patent number: 11218277Abstract: Provided in the embodiments of the present application are a channel state indication (CSI) information reporting and receiving method and a communication device, which are used to provide for a terminal in an NR system a solution for mapping CSI information to an uplink channel and transmitting the same.Type: GrantFiled: June 28, 2018Date of Patent: January 4, 2022Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Hui Li, Qiubin Gao, Tamrakar Rakesh, Runhua Chen, Xin Su, Deshan Miao, Qiuping Huang, Mengjun Wang
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Publication number: 20210376976Abstract: Embodiments of the present application provide a pilot configuration method, a channel measurement method, and a communication device, for use in resolving the technical problem in an NR system that a terminal cannot determine the location of a time-frequency resource occupied by a CSI-RS.Type: ApplicationFiled: June 28, 2018Publication date: December 2, 2021Inventors: Hui LI, Tamrakar RAKESH, Qiubin GAO, Runhua CHEN, Xin SU
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Patent number: 11190257Abstract: Disclosed are a method and device for feeding back channel state information, and a method and device for determining a pre-coding matrix. In the present application, a terminal determines N orthogonal vector groups, one of the orthogonal vector groups being used for constructing pre-coding corresponding to M layers in a pre-coding matrix; the terminal determines, according to beams in the N orthogonal vector groups, linear combination coefficients for constructing the pre-coding matrix, the linear combination coefficients includes linear combination coefficients corresponding to the layers in the pre-coding matrix; the terminal feeds back channel state information to a base station, the channel state information includes indication information of the N orthogonal vector groups and linear combination coefficients, in the determined linear combination coefficients of the pre-coding matrix, corresponding to Y layers, wherein Y is less than or equal to the number of layers of the pre-coding matrix.Type: GrantFiled: May 30, 2019Date of Patent: November 30, 2021Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.Inventors: Hui Li, Qiubin Gao, Tamrakar Rakesh, Runhua Chen
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Patent number: 11128423Abstract: Disclosed are a beam forming and transmission method and a network device, for resolving the defects of limited flexibility and performance in prior art methods for improving the quality of channel estimation. The method comprises: a network side determining the configuration information of physical resource block (PRB) bundling parameters, the time domain configuration information of the configuration information of said PRB bundling parameters being configurable; the network side sending the configuration information of the PRB bundling parameters to a terminal so that after having received the configuration information of the PRB bundling parameters, the terminal uses a precoding mode corresponding to the configuration information of the PRB bundling parameters to perform channel estimation and demodulation.Type: GrantFiled: February 2, 2018Date of Patent: September 21, 2021Assignee: China Academy of Telecommunications TechnologyInventors: Xin Su, Qiubin Gao, Tamrakar Rakesh, Runhua Chen, Hui Li, Chuanjun Li, Qiuping Huang, Mengjun Wang
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Publication number: 20210273708Abstract: Disclosed are a method and device for feeding back channel state information, and a method and device for determining a pre-coding matrix. In the present application, a terminal determines N orthogonal vector groups, one of the orthogonal vector groups being used for constructing pre-coding corresponding to M layers in a pre-coding matrix; the terminal determines, according to beams in the N orthogonal vector groups, linear combination coefficients for constructing the pre-coding matrix, the linear combination coefficients comprising linear combination coefficients corresponding to the layers in the pre-coding matrix; the terminal feeds back channel state information to a base station, the channel state information comprising indication information of the N orthogonal vector groups and linear combination coefficients, in the determined linear combination coefficients of the pre-coding matrix, corresponding to Y layers, wherein Y is less than or equal to the number of layers of the pre-coding matrix.Type: ApplicationFiled: May 30, 2019Publication date: September 2, 2021Inventors: Hui LI, Qiubin GAO, Tamrakar RAKESH, Runhua CHEN
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Patent number: 11063650Abstract: Disclosed by the present invention are a method, a network side device and a terminal for indicating a pilot precoding mode, wherein the method comprises: The network side device assigns at least one group of pilots to the terminal, wherein each group of pilots comprises at least one pilot. The network side device determines pilot precoding indication information for the at least one group of pilots, wherein the pilot precoding indication information is used to characterize whether each pilot in each group of pilots uses the same precoding matrix. The network side device sends the at least one group of pilots and the pilot precoding indication information to the terminal. The present invention may solve the technical problem not disclosed in prior art of a solution for how a base station or a terminal specifically indicates a pilot precoding mode, so as to improve the control efficiency of a network side device.Type: GrantFiled: April 13, 2018Date of Patent: July 13, 2021Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGYInventors: Tamrakar Rakesh, Qiubin Gao, Xin Su, Hui Li, Runhua Chen, Qiuping Huang
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Patent number: 11038574Abstract: Disclosed are a channel state information feedback and a control method and device therefor, which are used for realizing large-scale CSI feedback under an antenna system, wherein a UE may only need to feedback some pieces of PMI information, so that the complexity of the UE feeding back CSI is reduced, and the flexibility for a network side to control the UE to feed back the CSI is better. The channel state information (CSI) feedback control method provided in the present application comprises: a base station determining that there is a need to control a user equipment (UE) to feed back CSI, the CSI at least comprising a first precoding matrix indicator (PMI) and a second PMI, the first PMI and the second PMI corresponding to the same precoding matrix; and the base station sending trigger signaling of CSI feedback to the UE, wherein indication information used for instructing whether the UE feeds back the first PMI and/or the second PMI is comprised.Type: GrantFiled: May 23, 2016Date of Patent: June 15, 2021Assignee: China Academy of Telecommunications TechnologyInventors: Runhua Chen, Qiubin Gao, Tamrakar Rakesh
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Patent number: 11005550Abstract: Embodiments of the present application provide a method and apparatus for transmitting downlink control information (DCI), for solving the technical problem that neither the existing protocol nor the communication system has a method for encoding sounding reference signal resource indication (SRI) and pre-coding matrix indication (TPMI) or rank indication (TRI) information.Type: GrantFiled: May 15, 2018Date of Patent: May 11, 2021Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGYInventors: Qiuping Huang, Tamrakar Rakesh, Runhua Chen, Qiubin Gao, Xin Su, Hui Li, Mengjun Wang, Chuanjun Li
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Publication number: 20210083826Abstract: Disclosed are a data transmission method and apparatus and a computer storage medium, used to arrive at the mapping a data layer, based on a predefined DMRS port ordering rule, onto the DMRS port used during transmission to transmit the data layer. The present application provides a data transmission method, comprising: determining a predefined demodulation reference signal (DMRS) port ordering rule; and mapping, according to the predefined DMRS port ordering rule, a data layer onto the DMRS port used during transmission to send the data layer to a terminal.Type: ApplicationFiled: December 12, 2018Publication date: March 18, 2021Inventors: Xin SU, Qiubin GAO, Tamrakar Rakesh, Runhua CHEN
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Publication number: 20210083754Abstract: The present invention relates to the technical field of wireless communications, and in particular, to a beam training method and device, for use in resolving the problems in the prior art of excessive time-consuming of a beam training process, large overhead of training signals, and relatively low efficiency. According to embodiments of the present invention, a transmit device sends beam training signals in two times. The first sending of a transmit beam training signal is for a receive device to select a transmit beam using a selected receive beam and report the transmit beam. The second sending is that the transmit device sends a receive beam training signal according to the transmit beam information report of the receive device, so as to train the received beam of the receive device.Type: ApplicationFiled: June 7, 2017Publication date: March 18, 2021Applicant: China Academy of Telecommunications TechnologyInventors: Yang SONG, Qiubin GAO, Runhua CHEN, Tamrakar RAKESH, Xin SU, Chuanjun LI, Mengjun WANG, Yu YANG, Hui LI, Qiuping HUANG