-
公开(公告)号：US20210120536A1
公开(公告)日：2021-04-22
申请号：US16494647
申请日：2018-02-26
Inventor： Qiubin GAO , Rakesh TAMRAKAR , Xin SU , Runhua CHEN
Abstract: A method and an apparatus for determining an uplink transmission beam are provided. The method includes: a base station transmitting uplink transmission beam indication information to a terminal; where the uplink transmission beam indication information includes beam type indication information, the beam type indication information is used to indicate that the uplink transmission beam for the terminal is obtained based on uplink reference signals, or the beam type indication information is used to indicate that the uplink transmission beam for the terminal is obtained based on downlink reference signals, so as to ensure that the base station is capable of selecting an uplink transmission beam for the terminal.
-
公开(公告)号：US20200274558A1
公开(公告)日：2020-08-27
申请号：US16066226
申请日：2016-11-28
Inventor： Xin SU , Yang SONG , Chuanjun LI
Abstract: The present application discloses a method and an apparatus for signal processing. In the present application, since a front end device in a base station system performs MIMO detection and related baseband-processing of a time domain signal received from an antenna unit and transmits the signal that is baseband-processed to a back end device of the base station system, the back end device merely performs other baseband processing, apart from the MIMO detection and the related baseband processing. Compared with the prior art, the embodiments of the present application move some of the baseband processing forward to be implemented on a front end device such that only the data of each scheduled user with less redundancy are required to be transmitted in an interface between the front end device and a backend device, reducing the pressure on the rate of data transmission between the front end device and the back end device.
-
公开(公告)号：US20200036421A1
公开(公告)日：2020-01-30
申请号：US16337373
申请日：2017-09-13
Inventor： Xin SU , Qiubin GAO , Rakesh TAMRAKAR , Runhua CHEN , Chuanjun LI , Mengjun WANG , Hui LI , Qiuping HUANG
IPC: H04B7/06 , H04B7/0452 , H04B7/08 , H04W16/28 , H04L5/00
Abstract: A beam scanning and search tracking method and device are provided. The method includes constructing analog beams and performing digital beam-forming to the analog beams so as to form equivalent beams; transmitting reference signals to a second communication node by using the equivalent beams; receiving beam information about the equivalent beams and corresponding channel state information fed back by the second communication node according to the reference signals; performing a beam scanning operation and a search tracking operation by using the beam information and the channel state information.
-
公开(公告)号：US20190312697A1
公开(公告)日：2019-10-10
申请号：US16349014
申请日：2017-12-28
Inventor： Hui LI , Qiubin GAO , Rakesh TAMRAKAR , Xin SU , Runhua CHEN , Qiuping HUANG , Chuanjun LI , Mengjun WANG
IPC: H04L5/00 , H04B7/0456
Abstract: The present disclosure provides a reference signal transmission method, a transmitter and a receiver. The reference signal transmission method includes: precoding, by a transmitter, a data stream for user data through a second precoding matrix so as to acquire D virtual data streams; precoding, by the transmitter, the D virtual data streams through a first precoding matrix, and transmitting the D precoded virtual data streams to a receiver via T antenna groups, each antenna group including one or more antenna units or antenna ports having a same phase noise; transmitting, by the transmitter, D demodulation reference signals to the receiver; and transmitting, by the transmitter, M phase-tracking reference signals to the receiver, the M phase-tracking reference signals being adopted to track phase changes in the T antenna groups caused by one or more phase noise sources.
-
公开(公告)号：US20190297560A1
公开(公告)日：2019-09-26
申请号：US16317829
申请日：2017-06-08
Inventor： Qiubin GAO , Runhua CHEN , Hui LI , Tamrakar RAKESH , Qiuping HUANG , Yu YANG , Yang SONG , Xin SU , Mengjun WANG , Chuanjun LI
Abstract: 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.
-
Patent Agency Ranking
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.
-
7.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.
-
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.
-
9.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.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
40
records
(took 0.021 seconds)
