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公开(公告)号：US20180227095A1
公开(公告)日：2018-08-09
申请号：US15747753
申请日：2016-06-20
Inventor： Rakesh TAMRAKAR , Qiubin GAO , Runhua CHEN , Wenhong CHEN , Hui LI
IPC: H04L5/00
Abstract: A reference signal mapping method and a reference signal mapping device are provided. The reference signal mapping method includes steps of: determining a position of a RE to which a CSI-RS has been mapped in accordance with an N-port reference signal pattern, N being equal to 12 or 16; and performing a resource mapping operation on the CSI-RS in accordance with the determined position of the RE. The position of the RE to which the CSI-RS has been mapped in the N-port reference signal pattern being determined in accordance with a position of the RE to which the CSI-RS has been mapped in one or more of a 2-port reference signal pattern, a 4-port reference signal pattern and an 8-port reference signal pattern. As a result, it is able to achieve the 12-port or 16-port CSI-RS mapping, thereby to achieve the 12-port or 16-port CSI-RS transmission.
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公开(公告)号：US20180227030A1
公开(公告)日：2018-08-09
申请号：US15749122
申请日：2016-07-21
Inventor： Wenhong CHEN , Shanzhi CHEN , Qiubin GAO , Runhua CHEN , Tamrakar RAKESH , Hui LI
CPC classification number: H04B7/0626 , H04B7/0639 , H04B7/0645 , H04L1/00 , H04L1/0026 , H04L1/0027 , H04L5/0057
Abstract: The present application provides a channel state information (CSI) feedback and receiving method and device. The CSI feedback method by a UE comprises: determining, according to an indication of a base station, at least one CSI feedback configuration group configured by the base station, wherein each CSI feedback configuration group comprises at least one CSI feedback configuration; and upon determination of a need to report CSI, reporting, via a PUCCH or PUSCH, to the base station CSI acquired based on a first CSI feedback configuration, wherein the first CSI feedback configuration is a CSI feedback configuration determined, according to location information of a CSI feedback configuration in the most recent report or location information of a CSI feedback configuration indicated by the base station, from a corresponding CSI feedback configuration group by the UE. The present application supports independent reporting of location information and corresponding CSI, thus improving the detection performance of such information, and further supports a base station to acquire CSI corresponding to a specified CSI feedback configuration, thus enabling more flexible downlink scheduling and transmission.
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公开(公告)号：US20180124624A1
公开(公告)日：2018-05-03
申请号：US15575809
申请日：2016-04-13
Inventor： Wenhong CHEN , Qiubin GAO , Runhua CHEN , Hui LI , Rakesh TAMRAKAR
CPC classification number: H04W24/10 , H04B7/0456 , H04B7/0621 , H04B7/0626 , H04B7/0632 , H04B7/0643 , H04L1/0026 , H04L1/0028 , H04W24/02 , H04W72/042 , H04W88/02
Abstract: The present disclosure provides a CSI acquisition method. A network side device indicates a CSI feedback configuration group for aperiodic CSI feedback to a UE, and transmits DCI to the UE, the DCI configured to indicate the UE to perform the aperiodic feedback in accordance with an optimum CSI feedback configuration in the CSI feedback configuration group.
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公开(公告)号：US20210376976A1
公开(公告)日：2021-12-02
申请号：US16637752
申请日：2018-06-28
Inventor： Hui LI , Tamrakar RAKESH , Qiubin GAO , Runhua CHEN , Xin SU
Abstract: 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. The pilot configuration method comprises: a base station determines configuration information of CSI-RSs of N ports according to a predefined CSI-RS configuration pattern of a system, wherein the CSI-RS configuration pattern is used for representing configurations for time-frequency locations of resource elements (REs) of the CSI-RSs of different ports in a time slot when at least one OFDM symbol in a PRB is used as a time domain unit, the configuration information at least comprises the number of ports and an index parameter, and the index parameter is used for indicating the time-frequency location of the RE of the CSI-RS of each of the N ports in the time slot; the base station transmits the configuration information to a terminal connected to the base station by signaling, and transmits the CSI-RSs according to the configuration information, so that the terminal determines the time-frequency locations of the REs of the CSI-RSs in the time slot according to the configuration information and the predefined CSI-RS configuration pattern of the system, and performs channel measurement by using the CSI-RSs at the time-frequency locations.
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公开(公告)号：US20200343961A1
公开(公告)日：2020-10-29
申请号：US16960551
申请日：2018-12-19
Inventor： Deshan MIAO , Giubin GAO , Runhua CHEN , Tamrakar Rakesh
IPC: H04B7/06
Abstract: 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.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20200287687A1
公开(公告)日：2020-09-10
申请号：US16645413
申请日：2018-09-05
Inventor： Hui LI , Qiubin GAO , Rakesh TAMRAKAR , Runhua CHEN , Xin SU , Deshan MiAO , Qiuping HUANG
IPC: H04L5/00
Abstract: The present disclosure provides a reference signal transmission method, a reference signal transmission device, a base station and a user equipment. The transmission method of the present disclosure includes: implicitly or explicitly indicating to a user equipment (UE), position information of a target subcarrier for mapping a target phase tracking reference signal (PTRS) port, among subcarriers occupied by a target demodulation reference signal (DMRS) port. The target DMRS port is a DMRS port associated with the target PTRS port.
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公开(公告)号：US20200059958A1
公开(公告)日：2020-02-20
申请号：US16606172
申请日：2018-04-10
Inventor： Runhua CHEN , Qiubin GAO , Hui LI
Abstract: The message decoding method in accordance with embodiments of the present disclosure includes: receiving, by a receiving end device, a second message associated with a first message from a transmitting end device; determining, by the receiving end device, a target receiver parameter for decoding the first message in accordance with the second message; and decoding, by the receiving end device, the first message from the transmitting end device in accordance with the target receiver parameter.
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公开(公告)号：US20200059277A1
公开(公告)日：2020-02-20
申请号：US16476507
申请日：2018-02-07
Inventor： Xin SU , Qiubin GAO , Chuanjun LI , Mengjun WANG , Rakesh TAMRAKAR , Runhua CHEN , Hui LI , Qiuping HUANG
IPC: H04B7/0456 , H04B7/06 , H04L5/00 , H04L5/10 , H04L1/00
Abstract: The present disclosure provides a data transmission control method, a network side device and a terminal side device. The data transmission control method includes: mapping, by a network side device, a codeword to at least one data layer; mapping, by the network side device, the at least one data layer to at least one QCL group, the QCL group being an antenna port group established in accordance with a QCL relationship among antenna ports; and performing, by the network side device, data transmission in accordance with the QCL group. According to the present disclosure, it is able to perform the data transmission through multi-array antennae.
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19.发明申请公开(公告)号：US20200036417A1
公开(公告)日：2020-01-30
申请号：US16461087
申请日：2017-11-10
Inventor： Rakesh TAMRAKAR , Qiubin GAO , Hui LI , Runhua CHEN , Chuanjun LI , Mengjun WANG , Xin SU , Qiuping HUANG
IPC: H04B7/0456 , H04B7/06 , H04L5/00
Abstract: A method for indicating precoding information, user equipment (UE) and an access network entity are provided according to the disclosure. The method includes: receiving, by a user equipment (UE), a control signaling transmitted by an access network entity; determining, by the UE, a multilevel codebook index in response to the control signaling; and determining, by the UE, a target precoding matrix based on the multilevel codebook index and a multilevel codebook obtained in advance.
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公开(公告)号：US20200028560A1
公开(公告)日：2020-01-23
申请号：US16337961
申请日：2017-07-31
Inventor： Qiubin GAO , Runhua CHEN , Tamrakar RAKESH , Xin SU , Chuanjun LI
IPC: H04B7/06 , H04W16/28 , H04B7/0417 , H04B7/08 , H04W72/04
Abstract: Disclosed in the present application are an antenna beam management method and related device, used for solving the problem in current large-scale antenna technology wherein the overhead of beam management control signaling is large. The method is: a terminal sending related information of a downlink beam of the terminal to a base station so that the base station determines a first downlink sending beam on the basis of the related information of the downlink beam; the terminal receiving notification information related to the first downlink sending beam send by the base station, the notification information comprising indication information that is used by the terminal to determine at least one first downlink receiving beam; the terminal determining the at least one first downlink receiving beam on the basis of the notification information; and the terminal receiving a downlink signal on the basis of the at least one first downlink receiving beam.
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