公开(公告)号：US09800299B2

公开(公告)日：2017-10-24

申请号：US13386425

申请日：2010-09-25

Applicant: Qiubin Gao ,  Deshan Miao ,  Hao He ,  Shaohui Sun ,  Ying Peng

Inventor： Qiubin Gao ,  Deshan Miao ,  Hao He ,  Shaohui Sun ,  Ying Peng

IPC: H04W72/00 ,  H04B7/026 ,  H04B7/06 ,  H04W72/12 ,  H04W92/20

CPC classification number: H04B7/026 ,  H04B7/0639 ,  H04W72/1205 ,  H04W72/121 ,  H04W72/1226 ,  H04W92/20

Abstract: Disclosed in the present invention is a coordinated scheduling method which includes that: a base station establishes the correspondences between sub-bands and spatial information, and communicates the correspondences between sub-bands and spatial information with the base station of a cooperative cell (301); said base station implements coordinated scheduling with the base station of said cooperative cell according to the correspondences between sub-bands and spatial information (302). The present invention implements that less scheduling information is transmitted via an X2 interface, and thus promotes the application of the CBF solution in an actual system.

公开(公告)号：US09042932B2

公开(公告)日：2015-05-26

申请号：US13319031

申请日：2010-05-05

Applicant: Qiubin Gao ,  Zukang Shen ,  Deshan Miao ,  Xueming Pan ,  Shaohui Sun

Inventor： Qiubin Gao ,  Zukang Shen ,  Deshan Miao ,  Xueming Pan ,  Shaohui Sun

IPC: H04B7/00 ,  H04W52/24 ,  H04W52/40 ,  H04W52/08 ,  H04W52/14 ,  H04W52/32

CPC classification number: H04W52/242 ,  H04W52/08 ,  H04W52/146 ,  H04W52/325 ,  H04W52/40

Abstract: The present invention provides two methods for configuring transmit power of sounding reference signal (SRS), a network device and a UE. One of the methods includes: with a network device, determining SRS transmit power parameters according to power level of signal previously sent from a UE received by each cell to be detected and/or information of cells to be detected by the UE, and sending the SRS transmit power parameters to the UE. The present invention can have an overall consideration on path losses of multiple cells to be detected when calculating the SRS transmit power. Therefore, the power of the cell having poor channel quality for receiving SRS can be guaranteed, in order to ensure the accuracy of channel estimation.

Abstract translation: 本发明提供了用于配置探测参考信号（SRS），网络设备和UE的发射功率的两种方法。 方法之一包括：利用网络设备，根据先前从每个要检测的小区接收到的UE接收的信号的功率电平和/或要由UE检测的小区的信息，确定SRS发射功率参数，并发送 SRS向UE发送功率参数。 本发明可以在计算SRS发送功率时，对要检测的多个小区的路径损耗进行总体考虑。 因此，为了确保信道估计的准确性，可以保证具有用于接收SRS的信道质量差的小区的功率。

公开(公告)号：US20130163687A1

公开(公告)日：2013-06-27

申请号：US13701276

申请日：2011-09-16

Applicant: Meifang Jing ,  Qiubin Gao ,  Ranran Zhang ,  Shaohui Sun ,  Guojun Xiao ,  Rakesh Tamrakar

Inventor： Meifang Jing ,  Qiubin Gao ,  Ranran Zhang ,  Shaohui Sun ,  Guojun Xiao ,  Rakesh Tamrakar

IPC: H04B7/04

CPC classification number: H04B7/0639 ,  H04B7/063 ,  H04B7/0658

Abstract: The present invention discloses a method and device for processing codebook subset restriction, which includes: the codebooks for every rank of N antenna ports are grouped, wherein N is a natural number; after grouping, the status of each group is identified as restricted or unrestricted by using one bit. The present invention can reduce the signaling overhead needed for codebook subset restriction.

Abstract translation: 本发明公开了一种用于处理码本子集限制的方法和装置，包括：N个天线端口的每个等级的码本被分组，其中N是自然数; 分组后，通过使用一位将每个组的状态标识为受限制或不受限制。 本发明可以减少码本子集限制所需的信令开销。

公开(公告)号：US20120307935A1

公开(公告)日：2012-12-06

申请号：US13577669

申请日：2011-01-31

Applicant: Ranran Zhang ,  Deshan Miao ,  Qiubin Gao ,  Meifang Jing ,  Rakesh Tamrakar

Inventor： Ranran Zhang ,  Deshan Miao ,  Qiubin Gao ,  Meifang Jing ,  Rakesh Tamrakar

IPC: H04L27/00

CPC classification number: H04B7/0639 ,  H04B7/0417 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04L25/03343

Abstract: The present invention discloses a method for transmitting information in a closed loop multiple antenna system. The method includes that: a transmission apparatus receives information transmitted from a reception apparatus, wherein the information includes codeword index information; the transmission apparatus selects a corresponding codeword from a double-layer-structure-based codebook according to the codeword index information; the transmission apparatus generates a precoding matrix according to the selected codeword; the transmission apparatus performs precoding for data to be transmitted according to the precoding matrix; the transmission apparatus transmits the precoded data to the reception apparatus. The present invention can enable a formed and used codebook to match channel distribution characteristic of a dual-polarized antenna as much as possible, and minimize performance loss brought by codebook quantization, thereby performance of a precoding system can be effectively improved.

Abstract translation: 本发明公开了一种在闭环多天线系统中发送信息的方法。 该方法包括：发送装置接收从接收装置发送的信息，其中信息包括码字索引信息; 发送装置根据码字索引信息从基于双层结构的码本中选择对应的码字; 发送装置根据所选择的码字生成预编码矩阵; 发送装置根据预编码矩阵对要发送的数据进行预编码; 发送装置将预编码数据发送到接收装置。 本发明可以使得形成和使用的码本尽可能地匹配双极化天线的信道分布特性，并且最小化码本量化带来的性能损失，从而可以有效地提高预编码系统的性能。

公开(公告)号：US20120122507A1

公开(公告)日：2012-05-17

申请号：US13386423

申请日：2010-09-28

Applicant: Qiubin Gao ,  Deshan Miao ,  Ying Peng ,  Shaohui Sun

Inventor： Qiubin Gao ,  Deshan Miao ,  Ying Peng ,  Shaohui Sun

IPC: H04W72/04

CPC classification number: H04W72/1278 ,  H04B7/024 ,  H04J11/0053 ,  H04W16/28 ,  H04W92/20

Abstract: A method and a device for performing space coordination among cells are disclosed in the present invention, and the method includes that a base station in a serving cell acquires the channel information of a terminal; the base station in said serving cell performs pre-scheduling to said terminal, according to the acquired channel information of said terminal and the service requirement of said terminal; the base station in said serving cell transfers the pre-scheduling information to the base station in said coordinated cell, so that the base station in said coordinated cell performs coordinated scheduling/coordinated beam-forming with the base station in said serving cell together, according to said pre-scheduling information. With the solution of the present invention, the pre-scheduling information is transferred between base stations in various coordinated transmission cells, and the coordinated scheduling/beam-forming is performed according to the pre-scheduling information, thus, the coordinated scheduling/beam-forming is implemented with less amount of information exchange, and the spectrum efficiency of cell-edge terminal is improved.

Abstract translation: 在本发明中公开了一种用于在小区之间进行空间协调的方法和装置，该方法包括：服务小区中的基站取得终端的信道信息; 所述服务小区中的基站根据获取的所述终端的信道信息和所述终端的业务需求，对所述终端执行预调度; 所述服务小区中的基站将所述预调度信息传送到所述协同小区中的基站，使得所述协同小区中的基站与所述服务小区中的基站一起进行协调的调度/协调波束形成，根据 到所述预调度信息。 通过本发明的解决方案，在各种协调的传输小区中的基站之间传送预调度信息，并根据预调度信息进行协调的调度/波束形成，因此，协调调度/ 通过更少的信息交换实现形成，提高了小区边缘终端的频谱效率。

公开(公告)号：US09794101B2

公开(公告)日：2017-10-17

申请号：US13382929

申请日：2010-07-30

Applicant: Ying Peng ,  Qiubin Gao ,  Dingcheng Yang ,  Deshan Miao

Inventor： Ying Peng ,  Qiubin Gao ,  Dingcheng Yang ,  Deshan Miao

IPC: H04W72/08 ,  H04W4/00 ,  H04L27/26 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04L27/2613 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0051 ,  H04W72/0413

Abstract: The embodiments of the present invention disclose a method, device and system for transmitting Sounding Reference Signals (SRSs). The method includes the following steps: a user equipment receives the special SRS sequence information for Coordinated Multi-Point Operation (CoMP) from a base station equipment, and the base station equipment corresponds to a cell in a CoMP SRS cluster (101); the user equipment transmits an SRS to the cell in the CoMP SRS cluster based on the special SRS sequence information for CoMP (102). The embodiments of the present invention ensure the accuracy and reliability of channel estimation.

公开(公告)号：US09398574B2

公开(公告)日：2016-07-19

申请号：US14237923

申请日：2012-08-07

Applicant: Qiubin Gao ,  Ranran Zhang ,  Wenhong Chen ,  Ying Peng ,  Hui Li

Inventor： Qiubin Gao ,  Ranran Zhang ,  Wenhong Chen ,  Ying Peng ,  Hui Li

IPC: H04W72/04 ,  H04L1/00 ,  H04B7/02 ,  H04B7/04 ,  H04L5/00 ,  H04W24/08 ,  H04W72/02 ,  H04W72/06

CPC classification number: H04B7/024 ,  H04B7/0417 ,  H04B7/0621 ,  H04B7/0626 ,  H04L1/0026 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0057 ,  H04L41/0806 ,  H04W24/08 ,  H04W24/10 ,  H04W72/02 ,  H04W72/0413 ,  H04W72/06

Abstract: Embodiments of the present invention disclose an information transmission method and equipment based on CoMP transmission. In the method, a user equipment determines a main transmission point. The user equipment determines RANK information of the main transmission point as well as channel state information corresponding to the RANK information. The user equipment sends the RANK information of the main transmission point and the channel state information to a network side equipment. In the embodiments of the present invention, the UE reports channel state information of limited RANK of every transmission point, channel state information of unlimited RANK of the main transmission point, and relative phase information between the transmission points, etc., to the network side equipment, thereby helping the network side to better implement flexible selection and dynamic switchover of transmission schemes. Moreover, it does not notably increase feedback expenses for the UE.

Abstract translation: 本发明的实施例公开了一种基于CoMP传输的信息传输方法和设备。 在该方法中，用户设备确定主传输点。 用户设备确定主传输点的RANK信息以及对应于RANK信息的信道状态信息。 用户设备向网络侧设备发送主要传输点的RANK信息和信道状态信息。 在本发明的实施例中，UE向网络侧报告每个发送点的有限RANK的信道状态信息，主发送点的无限RANK的信道状态信息，以及发送点等之间的相对相位信息 设备，从而帮助网络端更好地实现灵活的选择和动态切换传输方案。 此外，它不会显着增加UE的反馈费用。

公开(公告)号：US09363700B2

公开(公告)日：2016-06-07

申请号：US13991152

申请日：2011-11-30

Applicant: Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen

Inventor： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen

IPC: H04L1/00 ,  H04L12/26 ,  H04L12/28 ,  H04W24/10 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04W24/10 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026

Abstract: There is disclosed method for reporting channel state so as to report channel state based upon CSI-RS. The method includes: a UE detecting configuration information of Channel State Information-Reference Signal (CSI-RS), determining according to detection result the number of ports required to report channel state based upon CSI-RS, the UE determining CSI-RS based PMI feedback scheme to be adopted in preset corresponding relationship between the number of ports and feedback scheme upon determining that the eNB is to map data of Physical Downlink Shared Channel (PDSCH) onto P (number) CSI-RS ports for transmission in a codebook-based precoding scheme, wherein the codebook-based precoding scheme is a scheme as represented in the formula of [ y ( 0 ) ⋮ y ( P - 1 ) ] = W · s , wherein W represents a codebook consisted of a precoding matrix, S is PDSCH data consisted of data layers whose quantity is equal to value of Rank Indication (RI) and   [ y ( 0 ) ⋮ y ( P - 1 ) ] represents a vector consisted of data on P (number) CSI-RS ports; and the UE calculating and reporting channel state information according to the determination result. The invention further discloses apparatus for performing the method.

Abstract translation: 公开了用于报告信道状态以便基于CSI-RS报告信道状态的方法。 该方法包括：UE检测信道状态信息参考信号（CSI-RS）的配置信息，根据检测结果确定基于CSI-RS报告信道状态所需的端口数，UE确定基于CSI-RS的PMI 在确定eNB将物理下行链路共享信道（PDSCH）的数据映射到基于码本的P（号码）CSI-RS端口上的数据之后，在端口数和反馈方案之间预设的对应关系中采用的反馈方案 预编码方案，其中基于码本的预编码方案是如[y（0）⋮y（P-1）] = W·s的公式所示的方案，其中W表示由预编码矩阵组成的码本，S是 PDSCH数据由数量等于等级指示值（RI）和[y（0）⋮y（P-1）]的数据层组成，表示由P（个数）CSI-RS端口上的数据组成的向量; 并且UE根据确定结果来计算和报告信道状态信息。 本发明还公开了用于执行该方法的装置。

公开(公告)号：US09225447B2

公开(公告)日：2015-12-29

申请号：US13691745

申请日：2012-12-01

Applicant: Wenhong Chen ,  Xueming Pan ,  Qiubin Gao ,  Yu Ding

Inventor： Wenhong Chen ,  Xueming Pan ,  Qiubin Gao ,  Yu Ding

IPC: H04J3/16 ,  H04L5/14 ,  H04L5/00

CPC classification number: H04J3/1694 ,  H04L5/0048 ,  H04L5/0078 ,  H04L5/1469

Abstract: Disclosed are a method and a device for transmitting an aperiodic SRS in a TDD system. In the technical solution of the present invention, a symbol is defined for the transmission of the aperiodic SRS in a special subframe in the TDD system. This avoids a scenario in which the transmission position of the aperiodic SRS is undefined when a plurality of symbols that can be used to transmit the aperiodic SRS are available in an uplink pilot time slot (UpPTS). The problem of transmitting aperiodic SRS in a TDD system special subframe is thus solved. The modification to corresponding instruction messages is not extensive, and there is no overuse of system resources.

Abstract translation: 公开了一种在TDD系统中发送非周期性SRS的方法和装置。 在本发明的技术方案中，定义了用于在TDD系统的特殊子帧中传输非周期SRS的符号。 这可以避免当在上行链路导频时隙（UpPTS）中可用于发送非周期性SRS的多个符号可用时，非周期性SRS的发送位置未定义的场景。 因此解决了在TDD系统专用子帧中发送非周期性SRS的问题。 对相应指令信息的修改不是很广泛，也不会过度使用系统资源。

公开(公告)号：US08855229B2

公开(公告)日：2014-10-07

申请号：US13577669

申请日：2011-01-31

Applicant: Ranran Zhang ,  Deshan Miao ,  Qiubin Gao ,  Meifang Jing ,  Rakesh Tamrakar

Inventor： Ranran Zhang ,  Deshan Miao ,  Qiubin Gao ,  Meifang Jing ,  Rakesh Tamrakar

IPC: H04L27/00 ,  H04B7/06 ,  H04B7/04 ,  H04L25/03

CPC classification number: H04B7/0639 ,  H04B7/0417 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04L25/03343

Abstract: The present invention discloses a method for transmitting information in a closed loop multiple antenna system. The method includes that: a transmission apparatus receives information transmitted from a reception apparatus, wherein the information includes codeword index information; the transmission apparatus selects a corresponding codeword from a double-layer-structure-based codebook according to the codeword index information; the transmission apparatus generates a precoding matrix according to the selected codeword; the transmission apparatus performs precoding for data to be transmitted according to the precoding matrix; the transmission apparatus transmits the precoded data to the reception apparatus. The present invention can enable a formed and used codebook to match channel distribution characteristic of a dual-polarized antenna as much as possible, and minimize performance loss brought by codebook quantization, thereby performance of a precoding system can be effectively improved.

Abstract translation: 本发明公开了一种在闭环多天线系统中发送信息的方法。 该方法包括：发送装置接收从接收装置发送的信息，其中信息包括码字索引信息; 发送装置根据码字索引信息从基于双层结构的码本中选择对应的码字; 发送装置根据所选择的码字生成预编码矩阵; 发送装置根据预编码矩阵对要发送的数据进行预编码; 发送装置将预编码数据发送到接收装置。 本发明可以使得形成和使用的码本尽可能地匹配双极化天线的信道分布特性，并且最小化码本量化带来的性能损失，从而可以有效地提高预编码系统的性能。