专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2011100863A1 METHOD AND ARRANGEMENT FOR ADAPTING POWER OF REFERENCE SIGNALS 审中-公开
标题翻译：适应参考信号功率的方法和布置
公开(公告)号：WO2011100863A1
公开(公告)日：2011-08-25
申请号：PCT/CN2010/001909
申请日：2010-11-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HU, Yang , ASTELY, David , JONGREN, George , WANG, Jianfeng
发明人： HU, Yang , ASTELY, David , JONGREN, George , WANG, Jianfeng
IPC分类号： H04B7/26
CPC分类号： H04B7/0426 , H04L5/0023 , H04L5/0048 , H04W52/325 , H04W52/42
摘要： A method and an arrangement (800) in a radio network node (120) for adapting transmission power of resource elements for demodulation reference signals, referred to as "reference elements" are provided. The radio network node (120) is configured for multiple-input multiple-output transmission, referred to as "MIMO transmission", to a user equipment (110). The MIMO transmission comprises at least three layers. Two consecutive subcarriers of a resource block carry at least three reference elements. A first subcarrier of the resource block carries data elements. The radio network node (120) adapts transmission power of said at least three reference elements such that an average transmission power, over said two consecutive subcarriers, of said at least three reference elements is equal to a transmission power, for the first subcarrier, of the data elements for said at least three layers. The radio network node (120) uses the adapted transmission power to transmit, to the user equipment (110), said at least three reference elements.
摘要翻译：提供了一种用于调整用于解调参考信号的资源元素的发送功率（称为“参考元素”）的无线电网络节点（120）中的方法和装置（800）。无线电网络节点（120）被配置用于用户设备（110）的多输入多输出传输（称为“MIMO传输”）。 MIMO传输包括至少三层。资源块的两个连续子载波携带至少三个参考元素。资源块的第一子载波携带数据元素。无线电网络节点（120）适应所述至少三个参考元件的发射功率，使得所述至少三个参考元件的所述两个连续子载波上的平均发射功率等于第一副载波的发射功率所述至少三层的数据元素。无线电网络节点（120）使用适配的传输功率向用户设备（110）发送所述至少三个参考元件。

2. 发明申请

WO2011085510A1 METHOD AND APPARATUS FOR CHANNEL ESTIMATION AND DETECTION IN MIMO SYSTEM 审中-公开
标题翻译： MIMO系统中信道估计和检测的方法与装置
公开(公告)号：WO2011085510A1
公开(公告)日：2011-07-21
申请号：PCT/CN2010/000045
申请日：2010-01-12
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HU, Yang , ASTELY, David , SONG, Xinghua , WANG, Jianfeng
发明人： HU, Yang , ASTELY, David , SONG, Xinghua , WANG, Jianfeng
IPC分类号： H04L25/02
CPC分类号： H04L25/0226 , H04B7/0413 , H04B7/0678 , H04L5/0016 , H04L5/0023 , H04L5/005 , H04L5/0051 , H04L5/1469 , H04L25/0204 , H04L25/0224
摘要： The prevent invention provides a method for performing channel estimation and detection in a Multiple-Input-Multiple-Output (MIMO) system, including: generating a demodulation reference signal, DM-RS, pattern for an extended cyclic prefix (CP); and estimating and detecting channel performance based on the generated DM-RS signal pattern. The DM-RS pattern supports from rank 1 to rank 8 patterns for 8 layer transmission. A transmitter, a receiver and a system thereof are also provided. The solution of the present invention improves channel estimation accuracy, saves channel estimation implementation and implementation complexity at terminals.
摘要翻译：防止发明提供了一种在多输入多输出（MIMO）系统中执行信道估计和检测的方法，包括：产生用于扩展循环前缀（CP）的解调参考信号DM-RS，模式; 以及基于所生成的DM-RS信号模式来估计和检测信道性能。 DM-RS模式支持8层传输从1级到8级模式。还提供发射机，接收机及其系统。本发明的解决方案提高了信道估计精度，节省了终端的信道估计实现和实现复杂度。

3. 发明申请

WO2011085509A1 LAYER-TO DM RS PORT MAPPING FOR LTE-ADVANCED 审中-公开
标题翻译：用于LTE-ADVANCED的层到DM RS端口映射
公开(公告)号：WO2011085509A1
公开(公告)日：2011-07-21
申请号：PCT/CN2010/000043
申请日：2010-01-12
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HU, Yang , ASTELY, David , HAMMARWALL, David , JÖNGREN, George , SONG, Xinghua , WANG, Jianfeng
发明人： HU, Yang , ASTELY, David , HAMMARWALL, David , JÖNGREN, George , SONG, Xinghua , WANG, Jianfeng
IPC分类号： H04B7/26
CPC分类号： H04B7/0452 , H04B7/0689 , H04L5/0023 , H04L5/0026 , H04L5/0048
摘要： The invention discloses a method for mapping pattern between transmission layers to demodulation reference signal (DM-RS) ports for both SU-MIMO and MU-MIMO in case of multi-layer transmission in LTE ReI- 10.
摘要翻译：本发明公开了一种用于在LTE ReI-10中进行多层传输的情况下将传输层之间的模式映射到用于SU-MIMO和MU-MIMO的解调参考信号（DM-RS）端口的方法。

4. 发明申请

WO2011100857A1 METHOD AND APPARATUS FOR IMPROVING DEMODULATION PERFORMANCE USING DEMODULATION REFERENCE SIGNALS POWER BOOSTING 审中-公开
标题翻译：使用解调参考信号改进解调性能的方法和装置功率提升
公开(公告)号：WO2011100857A1
公开(公告)日：2011-08-25
申请号：PCT/CN2010/000214
申请日：2010-02-17
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HU, Yang , ASTELY, David , JÖNGREN, George , WANG, Jianfeng
发明人： HU, Yang , ASTELY, David , JÖNGREN, George , WANG, Jianfeng
IPC分类号： H04B7/26
CPC分类号： H04B7/0426 , H04L5/0023 , H04L5/0048 , H04W52/325 , H04W52/42
摘要： The present invention relates to demodulation reference signals (DM-RS) power boosting for user equipment (UE) specific reference signals without explicit dynamic control signalling indication and enables full transmission power utilization.
摘要翻译：本发明涉及无需明确的动态控制信令指示的用户设备（UE）特定参考信号的解调参考信号（DM-RS）功率提升，并实现全发射功率利用。

5. 发明申请

WO2011088589A1 ANTENNA PORT MAPPING METHOD AND DEVICE FOR DEMODULATION REFERENCE SIGNALS 审中-公开
标题翻译：天线端口映射方法和解调参考信号的设备
公开(公告)号：WO2011088589A1
公开(公告)日：2011-07-28
申请号：PCT/CN2010/000084
申请日：2010-01-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HU, Yang , ASTELY, David , HAMMARWALL, David , JÖNGREN, George , SONG, Xinghua , WANG, Jianfeng
发明人： HU, Yang , ASTELY, David , HAMMARWALL, David , JÖNGREN, George , SONG, Xinghua , WANG, Jianfeng
IPC分类号： H04B7/06
CPC分类号： H04W28/0263 , H04J11/00 , H04L5/0026 , H04L5/0048 , H04W72/042 , H04W72/0453 , H04W72/06
摘要： An antenna port mapping method and device for demodulation reference signals. The method includes: determining a transmission rank for a downlink transmission to a user terminal; determining one or more reference signal antenna ports for the downlink transmission based on the transmission rank, wherein each port is defined by an group/code pair comprising a code division multiplexing group and orthogonal cover code; mapping reference signal antenna ports to group/code pairs for each transmission rank such that the code division multiplexing group and code orthogonal cover code are the same for a given antenna port for every transmission rank; and transmitting the downlink reference symbols over the reference signal antenna ports corresponding to the transmission rank.
摘要翻译：一种用于解调参考信号的天线端口映射方法和装置。该方法包括：确定向用户终端的下行链路传输的传输等级; 基于所述传输秩确定用于所述下行链路传输的一个或多个参考信号天线端口，其中每个端口由包括码分复用组和正交覆盖码的组/码对定义; 将参考信号天线端口映射到每个发送等级的组/码对，使得码分多路复用组和码正交覆盖码对于每个发送等级的给定天线端口是相同的; 以及通过对应于发送等级的参考信号天线端口发送下行链路参考符号。

6. 发明申请

WO2013113144A1 BASE STATION, USER EQUIPMENT, AND METHODS THEREIN IN A COMMUNICATIONS SYSTEM 审中-公开
标题翻译：基站，用户设备及其在通信系统中的方法
公开(公告)号：WO2013113144A1
公开(公告)日：2013-08-08
申请号：PCT/CN2012/070773
申请日：2012-01-30
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , LI, Shaohua , HU, Yang , WANG, Jianfeng
发明人： LI, Shaohua , HU, Yang , WANG, Jianfeng
IPC分类号： H04W24/10 , H04W88/02 , H04W88/08
CPC分类号： H04L5/0053 , H04B7/0626 , H04J11/0023 , H04L25/0228 , H04W24/08 , H04W52/241 , H04W52/245
摘要： A method in a first base station for obtaining channel state information from a user equipment is provided. The first base station is comprised in a wireless communication system. The wireless communication system further comprises the user equipment. The first base station estimates (403) a first offset value for a first set of subframes based on a first channel information. The first base station further estimates (404) a second offset value for a second set of subframes based on a second channel information. The first base station transmits (405) the estimated first offset value and the estimated second offset value to the user equipment. The first base station then obtains (407) channel state information from the user equipment. The channel state information is based on the transmitted estimated first offset value and the estimated second offset value. The channel state information is to be used for transmission in the first base station.
摘要翻译：提供了一种用于从用户设备获取信道状态信息的第一基站中的方法。第一基站包括在无线通信系统中。无线通信系统还包括用户设备。第一基站基于第一信道信息估计（403）第一组子帧的第一偏移值。基于第二信道信息，第一基站进一步估计（404）第二组子帧的第二偏移值。第一基站向用户设备发送（405）估计的第一偏移值和估计的第二偏移值。第一基站然后从用户设备获得（407）信道状态信息。信道状态信息基于发送的估计的第一偏移值和估计的第二偏移值。信道状态信息用于第一基站中的传输。

7. 发明申请

WO2013023334A1 TAE/FAE COMPENSATION FOR ANTENNA PORTS IN COMP TRANSMISSIO 审中-公开
标题翻译：天NA COMP。。。。。。。。。。。。。。。
公开(公告)号：WO2013023334A1
公开(公告)日：2013-02-21
申请号：PCT/CN2011/002199
申请日：2011-12-27
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WANG, Hai , HU, Yang , LI, Shaohua , WANG, Jianfeng
发明人： WANG, Hai , HU, Yang , LI, Shaohua , WANG, Jianfeng
IPC分类号： H04L1/06 , H04L1/00 , H04B7/06
CPC分类号： H04L27/2646 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L1/0026 , H04L1/06 , H04L1/20 , H04L2001/0092
摘要： The present invention discloses a user equipment (UE) (100), comprising: a first measuring unit (1 10) adapted to measure time alignment error (TAE) and/or frequency alignment error (FAE) for antenna ports belonging to transmission point devices in Coordinated Multipoint Transmission (CoMP), the TAE including internal TAE and/or external TAE; and a first feedback unit (120) adapted to feedback the measured internal TAE, and/or external TAE, and/or FAE to at least one of the transmission point devices. The present invention provides a simple, direct and efficient approach for measuring and feeding back the cell-specific internal TAE and/or the UE-specific external TAE/FAE by UE and compensating the TAE/FAE by the transmission point device in the CoMP transmission, so that the CoMP transmission can properly operate.
摘要翻译：本发明公开了一种用户设备（UE）（100），包括：适于测量属于传输点设备的天线端口的时间对准误差（TAE）和/或频率对准误差（FAE）的第一测量单元（110）在协调多点传输（CoMP）中，TAE包括内部TAE和/或外部TAE; 以及适于将测量的内部TAE和/或外部TAE和/或FAE反馈到至少一个传输点设备的第一反馈单元（120）。本发明提供了一种用于测量和反馈UE的小区特定内部TAE和/或UE专用外部TAE / FAE并且在CoMP传输中由传输点设备补偿TAE / FAE的简单，直接和有效的方法，以便CoMP传输可以正常工作。

8. 发明申请

WO2011066671A1 APPARATUS AND METHOD FOR CHANNEL ESTIMATION IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
标题翻译：无线通信系统中信道估计的装置和方法
公开(公告)号：WO2011066671A1
公开(公告)日：2011-06-09
申请号：PCT/CN2009/001367
申请日：2009-12-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , HU, Yang , WANG, Jianfeng
发明人： HU, Yang , WANG, Jianfeng
IPC分类号： H04L27/26
CPC分类号： H04L25/022 , H04B7/0617 , H04B7/0626 , H04B7/0632 , H04B17/102 , H04B17/318 , H04L5/0051 , H04L25/0206 , H04L25/0228
摘要： The exemplary embodiments of the present invention relate to a user equipment and to a method for channel estimation in a wireless communications network system. The method comprises: receiving physical resource blocks from a radio base station; estimating a channel coefficient of each received physical resource block; calculating for each two adjacent physical resource blocks, a difference between estimated channel coefficients of the two adjacent physical resource blocks; comparing each difference with a predefined threshold value; grouping physical resource blocks for which said difference is less than or equal to the predefined threshold value; and performing a group-wise channel estimation and per physical resource block channel adaptively.
摘要翻译：本发明的示例性实施例涉及在无线通信网络系统中的用户设备和用于信道估计的方法。该方法包括：从无线基站接收物理资源块; 估计每个接收到的物理资源块的信道系数; 计算每个两个相邻的物理资源块，两个相邻的物理资源块的估计的信道系数之间的差; 将每个差异与预定义的阈值进行比较; 对所述差异小于或等于所述预定阈值的物理资源块进行分组; 并且自适应地执行分组信道估计和每个物理资源块信道。

9. 发明申请

WO2013058685A1 METHODS AND DEVICES FOR DETERMINING A TRANSMISSION RANK 审中-公开
标题翻译：用于确定传输级别的方法和设备
公开(公告)号：WO2013058685A1
公开(公告)日：2013-04-25
申请号：PCT/SE2011/051245
申请日：2011-10-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ZHANG, Haochuan , HU, Yang , LI, Shaohua , SONG, Xinghua , WANG, Jianfeng
发明人： ZHANG, Haochuan , HU, Yang , LI, Shaohua , SONG, Xinghua , WANG, Jianfeng
IPC分类号： H04L25/02 , H04L25/03 , H04L5/00
CPC分类号： H04L25/0248 , H04L5/0023 , H04L25/0204 , H04L25/03343 , H04L2025/03426 , H04L2025/03808
摘要： The invention relates to a method 20 in a base station 2 for determining a transmission rank. The base station 2 controls two or more transmit antenna ports 3a, 3b for supporting a multi-antenna transmission mode and for transmission of data on a channel for communication with a user equipment 4. The method 20 comprises receiving 21 a rank indicator from a user equipment 4, the rank indicator indicating the number of spatial multiplexing layers recommended by the user equipment 4, and determining 22 the transmission rank based on a channel imbalance factor CIF, wherein the channel imbalance factor CIF quantifies a difference in receive power of the two or more transmit antenna ports 3a, 3b. The invention also relates to a base station, methods in user equipment, user equipment, computer programs, and computer program products.
摘要翻译：本发明涉及基站2中用于确定传输等级的方法20。基站2控制用于支持多天线传输模式的两个或更多个发射天线端口3a，3b，以及用于在与用户设备4通信的信道上传输数据。方法20包括从用户接收21等级指示符设备4，表示用户设备4推荐的空间复用层的数量的等级指示符，以及基于信道不平衡因子CIF确定22的传输等级，其中，信道不平衡因子CIF量化两者的接收功率的差异更多的发射天线端口3a，3b。本发明还涉及基站，用户设备中的方法，用户设备，计算机程序和计算机程序产品。

10. 发明申请

WO2011087417A1 A METHOD AND TRANSMITTER NODE FOR TRANSMITTING DM-RS PATTERN 审中-公开
标题翻译：用于发送DM-RS模式的方法和发射机节点
公开(公告)号：WO2011087417A1
公开(公告)日：2011-07-21
申请号：PCT/SE2010/050725
申请日：2010-06-24
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , HU, Yang , ASTELY, David , HAMMARWALL, David , JÖNGREN, George , SONG, Xinghua , WANG, Jianfeng
发明人： HU, Yang , ASTELY, David , HAMMARWALL, David , JÖNGREN, George , SONG, Xinghua , WANG, Jianfeng
IPC分类号： H04W72/06
CPC分类号： H04B7/0452 , H04B7/0689 , H04L5/0023 , H04L5/0026 , H04L5/0048
摘要： The present invention relates to a transmitter node for transmitting a demodulation reference signal pattern in a resource block to a receiver node (12) using more than two transmission layers over a plurality of transmit antennas in a radio communications network. The transmitter node (10) comprises a mapping circuit (1301) configured to map a plurality of codewords to the more than two transmission layers. Furthermore, the transmitter comprises an additional mapping circuit (1302) configured to map each of the more than two transmission layers to a respective demodulation reference signal port according to a fixed pattern based on a transmission rank. Each of the demodulation reference signal ports is arranged to add a demodulation reference signal pattern to the resource block and the demodulation reference signal ports are associated to two code division multiplexing groups according to an association pattern. The transmission layers of each the two code division multiplexing groups are code division multiplexed and the transmission layers of different code division multiplexing groups are frequency division multiplexed In addition, the transmitter node (10) comprises a precoding circuit (1303) configured to precode each codeword and demodulation reference signal pattern, carried over respective transmission layer, and a transmitting circuit (1304) comprising the plurality of transmit antennas and configured to transmit the precoded demodulation reference signal pattern in the resource block to the receiver node (12).
摘要翻译：本发明涉及一种发射机节点，用于在无线电通信网络中的多个发射天线上使用两个以上的传输层，将资源块中的解调参考信号模式发射到接收机节点（12）。发射机节点（10）包括配置成将多个码字映射到多于两个传输层的映射电路（1301）。此外，发射机包括附加映射电路（1302），被配置为根据基于传输秩的固定模式将多于两个传输层中的每一个映射到相应的解调参考信号端口。每个解调参考信号端口被布置成将解调参考信号模式添加到资源块，并且解调参考信号端口根据关联模式与两个码分复用组相关联。两个码分复用组中的每一个的传输层是码分复用的，并且不同码分复用组的传输层是频分复用的。另外，发射机节点（10）包括预编码电路（1303），其被配置为对每个码字进行预编码和解调参考信号模式，以及包括多个发射天线的发射电路（1304），并且被配置为将资源块中的预编码的解调参考信号模式发送到接收机节点（12）。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式