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

WO2011100542A1 LOW OVERHEAD PMI AND CQI FEEDBACK AND PAIRING SCHEMES FOR MU-MIMO 审中-公开
标题翻译：用于MU-MIMO的低OVERHEAD PMI和CQI反馈和配对方案
公开(公告)号：WO2011100542A1
公开(公告)日：2011-08-18
申请号：PCT/US2011/024520
申请日：2011-02-11
申请人： RESEARCH IN MOTION LIMITED , GAO, Shiwei , XU, Hua , JIA, Yongkang , MOBASHER, Amin , BAYESTEH, Alireza , CAI, Zhijun
发明人： GAO, Shiwei , XU, Hua , JIA, Yongkang , MOBASHER, Amin , BAYESTEH, Alireza , CAI, Zhijun
IPC分类号： H04K1/10
CPC分类号： H04L25/03343 , H04B7/0452 , H04B7/0465 , H04B7/0478 , H04B7/0632 , H04B7/0639 , H04B7/0641 , H04B7/0658 , H04L1/0026 , H04L1/0029 , H04L1/0031 , H04L2025/03426 , H04L2025/03605 , H04L2025/03808 , H04W24/00 , H04W72/00
摘要： Searching for a pairing PMI including estimating a MIMO wireless propagation channel from an access point transmitter to a receiver at a UE is provided; including quantizing the estimated channel with a codebook consisting of multiple codewords, the result being SU-MIMO PMI currently applicable to the UE; estimating the channel quality corresponding to the actual SU-MIMO PMI, resulting in at least one CQI for the UE; constructing multiple subsets from a codebook of codewords, each subset comprises potential MU-MIMO PMIs that represent channels that have reduced interference with a channel represented by one of the potential SU-MIMO PMIs; associating each potential SU-MIMO PMI with the subset that comprises the potential MU-MIMO PMIs that represent channels that have reduced interference with the channel represented by that potential SU-MIMO PMI; searching for an appropriate pairing PMI and associated CQI for the UE.
摘要翻译：提供了一种搜索配对PMI，包括估计来自接入点发射机的MIMO无线传播信道到UE处的接收机; 包括使用由多个码字组成的码本量化估计信道，其结果是目前可应用于UE的SU-MIMO PMI; 估计与实际SU-MIMO PMI相对应的信道质量，从而产生用于UE的至少一个CQI; 从码字的码本构造多个子集，每个子集包括潜在的MU-MIMO PMI，其表示与由潜在的SU-MIMO PMI之一表示的信道的干扰减小的信道; 将每个潜在的SU-MIMO PMI与包括潜在的MU-MIMO PMI的子集相关联，所述潜在MU-MIMO PMI表示与由该潜在SU-MIMO PMI表示的信道具有减少的干扰的信道; 搜索用于UE的适当配对PMI和相关联的CQI。

2. 发明申请

WO2011100822A1 SYSTEM AND METHOD FOR CHANNEL STATUS INFORMATION FEEDBACK IN A WIRELESS COMMUNICATIONS SYSTEM THAT UTILIZES MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) TRANSMISSION 审中-公开
标题翻译：在使用多输入多输出（MIMO）传输的无线通信系统中的信道状态信息反馈的系统和方法
公开(公告)号：WO2011100822A1
公开(公告)日：2011-08-25
申请号：PCT/CA2011/000162
申请日：2011-02-15
申请人： RESEARCH IN MOTION LIMITED , GUO, Shiguang , JIA, Yongkang , YU, Dongsheng , BAYESTEH, Alireza , GAO, Shiwei , XU, Hua
发明人： GUO, Shiguang , JIA, Yongkang , YU, Dongsheng , BAYESTEH, Alireza , GAO, Shiwei , XU, Hua
IPC分类号： H04W24/00 , H04W16/10
CPC分类号： H04L25/0204 , H04B7/0417 , H04B7/0632 , H04B7/0639 , H04B7/0654 , H04L1/0026 , H04L25/0246 , H04L25/0248 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： A method for user equipment operation in a wireless communication system, the wireless communication system having an base station, the method comprising measuring a channel between the UE and the base station, determining a quantized estimate using a codebook to approximate the measured channel, computing an error measure for the quantized estimate and transmitting the error measure and the quantized estimate to the base station for use by the base station in reconstructing an actual channel vector.
摘要翻译：一种在无线通信系统中的用户设备操作的方法，所述无线通信系统具有基站，所述方法包括测量所述UE与所述基站之间的信道，使用码本来确定量化的估计值以近似所述测量的信道，计算量化估计的误差测量，并将误差测量和量化估计发送到基站，以供基站在重构实际信道向量中使用。

3. 发明申请

WO2012104676A1 MIXED RANK DOWNLINK MULTI-USER INTERFERENCE ALIGNMENT SCHEME 审中-公开
标题翻译：混合排名下行多用户干扰对齐方案
公开(公告)号：WO2012104676A1
公开(公告)日：2012-08-09
申请号：PCT/IB2011/050427
申请日：2011-02-01
申请人： RESEARCH IN MOTION LIMITED , MOBASHER, Amin , BAYESTEH, Alireza , JIA, Yongkang
发明人： MOBASHER, Amin , BAYESTEH, Alireza , JIA, Yongkang
IPC分类号： H04B15/00 , H04W16/00
CPC分类号： H04B7/063 , H04B7/024 , H04B7/0452 , H04B7/0632 , H04B7/0634 , H04B7/0639 , H04W24/10
摘要： A method, system and device are provided for using an indexed list of linearly independent, predetermined vectors V ref = {v 1 ref ,..., V M ref }and channel knowledge H, G from each transmitter to compute and feedback equivalent channel matrix information H i, j eq to its affiliated transmitter based on the assigned/determined rank of the receiver. With this information, each transmitter selects L i receivers and constructs a transmitted signal by applying a selected precoding matrix to the mixed rank data, thereby eliminating interference to the rest of the receivers in the network.
摘要翻译：提供一种方法，系统和装置，用于使用来自每个发射机的线性独立的预定向量Vref = {v1 ref，...，VM ref}和信道知识H，G的索引列表来计算和反馈等效信道矩阵信息Hi ，j eq到其附属发射机，基于接收机的分配/确定的等级。利用该信息，每个发射机通过将选择的预编码矩阵应用于混合秩数据来选择L i个接收机并构建发送的信号，从而消除对网络中的其余接收机的干扰。

4. 发明申请

WO2012114148A1 MIXED RANK DOWNLINK COMPOUND MULTI-USER INTERFERENCE ALIGNMENT SCHEME 审中-公开
标题翻译：混合下行链路复合多用户干扰对齐方案
公开(公告)号：WO2012114148A1
公开(公告)日：2012-08-30
申请号：PCT/IB2011/050428
申请日：2011-02-01
申请人： RESEARCH IN MOTION LIMITED , MOBASHER, Amin , JIA, Yongkang , BAYESTEH, Alireza
发明人： MOBASHER, Amin , JIA, Yongkang , BAYESTEH, Alireza
IPC分类号： H04B15/00 , H04B1/10 , H04W16/00
CPC分类号： H04B7/0456 , H01Q3/2605 , H04B7/0452 , H04B7/0486 , H04L25/03891 , H04W16/28
摘要： A method, system and device are provided to enable one or more users to receive mixed-rank data from two transmitters by using an indexed list of linearly independent, predetermined vectors {V 1 ref ,..,V M ref } and channel knowledge H 1 , H 2 from first and second transmitters to compute equivalent channel matrix information H i eq based on the assigned or determined rank of the receiver. With this information, each transmitter selects L i receivers and constructs a transmitted signal by applying a selected precoding matrix to the mixed rank data, thereby eliminating interference to the rest of the receivers in the network so that a receiver can receive transmitted signals from both transmitters.
摘要翻译：提供了一种方法，系统和装置，以使一个或多个用户能够通过使用线性独立的预定向量{V1 ref，...，VM ref}和信道知识H1，H2的索引列表来从两个发射机接收混合秩数据从第一和第二发射机基于接收机的分配或确定的等级来计算等效信道矩阵信息Hi eq。利用该信息，每个发射机通过将选择的预编码矩阵应用于混合秩数据来选择Li接收机并构建发射信号，从而消除对网络中的其余接收机的干扰，使得接收机可以从两个发射机接收发射信号。

5. 发明申请

WO2012104675A1 DOWNLINK MULTI-USER INTERFERENCE ALIGNMENT SCHEME 审中-公开
标题翻译：下行多用户干扰对齐方案
公开(公告)号：WO2012104675A1
公开(公告)日：2012-08-09
申请号：PCT/IB2011/050426
申请日：2011-02-01
申请人： RESEARCH IN MOTION LIMITED , BAYESTEH, Alireza , MOBASHER, Amin , JIA, Yongkang
发明人： BAYESTEH, Alireza , MOBASHER, Amin , JIA, Yongkang
IPC分类号： H04B7/02 , H04W24/10
CPC分类号： H04B7/0417 , H04B1/10 , H04B7/0452 , H04B7/0634 , H04W24/10
摘要： In the field of wireless communications, a method, system and device are provided for interference alignment on a downlink. The system uses a predetermined vector and channel knowledge from each transmitter to compute and feed back equivalent channel vector information from each receiver to its affiliated transmitter. With this information, each transmitter selects a set of affiliated receivers and constructs a transmitted signal by applying a selected precoding vector to rank 1 data, thereby eliminating interference to certain non-affiliated receivers.
摘要翻译：在无线通信领域中，提供了一种在下行链路上进行干扰对准的方法，系统和装置。该系统使用来自每个发射机的预定向量和信道知识来计算并将等效信道向量信息从每个接收机反馈到其附属发射机。利用该信息，每个发射机选择一组附属接收机并通过应用所选择的预编码向量来对1个数据进行排序来构造发射信号，从而消除对某些非附属接收机的干扰。

6. 发明申请

WO2013017902A1 JOINT TRANSMISSION USING INTERFERENCE ALIGNMENT 审中-公开
标题翻译：使用干扰对齐的联合传输
公开(公告)号：WO2013017902A1
公开(公告)日：2013-02-07
申请号：PCT/IB2011/001798
申请日：2011-08-01
申请人： RESEARCH IN MOTION LIMITED , MOBASHER, Amin , BAYESTEH, Alireza , GUO, Shiguang
发明人： MOBASHER, Amin , BAYESTEH, Alireza , GUO, Shiguang
IPC分类号： H04W28/04 , H04W24/08
CPC分类号： H04B7/0482 , H04B7/0413 , H04B7/0456 , H04B7/0486 , H04B7/0617 , H04B7/0619 , H04B7/0626 , H04L5/0023 , H04L25/0204 , H04L25/0224 , H04L25/0391 , H04L25/03968 , H04W36/20
摘要： Systems and methods can implemented to joint transmission for interference management in wireless communications. A first transmitter having M antennas can acquire a channel state information (CSI) matrix for each of a plurality of multiple- input-multiple output (MIMO) channels between a first transmitter and a plurality of receivers. The first transmitter can determine transmission ranks, wherein each of the transmission ranks corresponds to a number of one or more data streams to be transmitted from both the first transmitter and a second transmitter to a receiver of the plurality of receivers. A maximum transmission rank may be identified from the determined transmission ranks. Transmit data can be generated that include the one or more data streams to each of the corresponding plurality of receivers. A precoding matrix can be generated for the generated transmit data based, at least in part, on the acquired CSI matrix. The first transmitter can then encode the transmit data using the corresponding generated precoding matrix.
摘要翻译：系统和方法可以实现用于联合传输用于无线通信中的干扰管理。具有M个天线的第一发射机可以为第一发射机和多个接收机之间的多个多输入多输出（MIMO）信道中的每一个获取信道状态信息（CSI）矩阵。第一发射机可以确定传输秩，其中每个传输等级对应于要从第一发射机和第二发射机两者发送到多个接收机的接收机的一个或多个数据流的数量。可以从确定的传输等级识别最大传输等级。可以生成包括到相应的多个接收器中的每一个的一个或多个数据流的发送数据。至少部分地基于所获取的CSI矩阵，可以为所生成的发送数据生成预编码矩阵。然后，第一发射机可以使用相应的生成的预编码矩阵对发射数据进行编码。

7. 发明申请

WO2012048218A1 SPARSE CODES FOR MIMO CHANNEL AND DETECTOR ALTERNATIVES FOR SPARSE CODE 审中-公开
标题翻译： MIMO通道的稀疏码和稀疏码的检测器替代
公开(公告)号：WO2012048218A1
公开(公告)日：2012-04-12
申请号：PCT/US2011/055361
申请日：2011-10-07
申请人： RESEARCH IN MOTION LIMITED , DHAKAL, Sagar , BAYESTEH, Alireza , HRANILOVIC, Steve , MOBASHER, Amin , SEXTON, Thomas
发明人： DHAKAL, Sagar , BAYESTEH, Alireza , HRANILOVIC, Steve , MOBASHER, Amin , SEXTON, Thomas
IPC分类号： H04L1/06
CPC分类号： H04B7/0456 , H04L1/0618
摘要： Embodiments are disclosed for improved systems and methods for encoding and decoding information transmitted using multiple-input-multiple-output (MIMO) communication devices. Structurally sparse codes are implemented based on principles of compressive sampling. Improved detectors are also disclosed for implementing basis pursuit and basis pursuit with runner-up detection techniques.
摘要翻译：公开了用于编码和解码使用多输入多输出（MIMO）通信设备发送的信息的改进的系统和方法的实施例。基于压缩采样的原理，实现了结构稀疏码。还公开了改进的检测器，用于实现基本追求和基础追踪与亚军检测技术。

8. 发明申请

WO2010148476A1 CODE BOOKS FOR MULTIPLE-INPUT AND MULTIPLE-OUTPUT COMMUNICATION SYSTEMS 审中-公开
标题翻译：多输入和多输出通信系统的代码簿
公开(公告)号：WO2010148476A1
公开(公告)日：2010-12-29
申请号：PCT/CA2010/000141
申请日：2010-02-09
申请人： RESEARCH IN MOTION LIMITED , BAYESTEH, Alireza , KOHANDANI, Farzaneh , JIA, Yongkang
发明人： BAYESTEH, Alireza , KOHANDANI, Farzaneh , JIA, Yongkang
IPC分类号： H04W80/00
CPC分类号： H04L25/03343 , H04L2025/03426
摘要： A method and device for transmitting and receiving data. A device (FIG. 5, 504) comprises a code book (FIG. 5, 530) and a transmitter (FIG. 6, 518). The code book (FIG. 5, 530) comprises a plurality of codewords (FIG. 6, 602), wherein the plurality of codewords (FIG. 6, 602) correspond to a plurality of vectors (FIG. 6, 604) having a largest minimum chordal distance (FIG. 6, 614) with respect to the plurality of vectors (FIG. 6, 604). The transmitter (FIG. 6, 518) is configured to send a number of wireless signals (FIG. 5, 529) using the code book (FIG. 5, 530). A receiver (FIG. 5, 524) receives and decodes the number of wireless signals (FIG. 5, 529).
摘要翻译：一种用于发送和接收数据的方法和装置。设备（图5,504）包括码本（图5，530）和发射机（图6，518）。代码簿（图5，530）包括多个码字（图6,602），其中多个码字（图6,602）对应于多个码字（图6,602），其具有相对于多个向量的最大最小和弦距离（图6,614）（图6,604）。发射机（图6，518）被配置为使用码本（图5，530）发送多个无线信号（图5,529）。接收机（图5，524）接收并解码无线信号的数量（图5,529）。

9. 发明公开

EP2625807A1 SPARSE CODES FOR MIMO CHANNEL AND DETECTOR ALTERNATIVES FOR SPARSE CODE 有权转让
标题翻译：对于MIMO信道和检波器稀疏代码的替代品稀疏编码
公开(公告)号：EP2625807A1
公开(公告)日：2013-08-14
申请号：EP11774139.7
申请日：2011-10-07
申请人： Research In Motion Limited
发明人： DHAKAL, Sagar , BAYESTEH, Alireza , HRANILOVIC, Steve , MOBASHER, Amin , SEXTON, Thomas
IPC分类号： H04L1/06
CPC分类号： H04B7/0456 , H04L1/0618
摘要： Embodiments are disclosed for improved systems and methods for encoding and decoding information transmitted using multiple-input-multiple-output (MIMO) communication devices. Structurally sparse codes are implemented based on principles of compressive sampling. Improved detectors are also disclosed for implementing basis pursuit and basis pursuit with runner-up detection techniques.

10. 发明公开

EP2534779A1 LOW OVERHEAD PMI AND CQI FEEDBACK AND PAIRING SCHEMES FOR MU-MIMO 审中-公开
标题翻译： PMI MIT GERINGEM OVERHEAD SOWIE CQI-FEEDBACK UND PAARUNGSSCHEMATAFÜRMU-MIMO
公开(公告)号：EP2534779A1
公开(公告)日：2012-12-19
申请号：EP11742860.7
申请日：2011-02-11
申请人： Research In Motion Limited
发明人： GAO, Shiwei , XU, Hua , JIA, Yongkang , MOBASHER, Amin , BAYESTEH, Alireza , CAI, Zhijun
IPC分类号： H04K1/10
CPC分类号： H04L25/03343 , H04B7/0452 , H04B7/0465 , H04B7/0478 , H04B7/0632 , H04B7/0639 , H04B7/0641 , H04B7/0658 , H04L1/0026 , H04L1/0029 , H04L1/0031 , H04L2025/03426 , H04L2025/03605 , H04L2025/03808 , H04W24/00 , H04W72/00
摘要： A method is provided for searching for a pairing PMI including estimating a MIMO wireless propagation channel from an access point transmitter to a receiver at a UE; quantizing the estimated channel with a codebook consisting of a plurality of codewords, the result being an actual SU-MIMO PMI currently applicable to the UE; estimating the channel quality corresponding to the actual SU-MIMO PMI, resulting in at least one CQI for the UE; constructing a plurality of subsets from a codebook of codewords, wherein each subset comprises potential MU-MIMO PMIs that represent channels that have reduced interference with a channel represented by one of the potential SU-MIMO PMIs; associating each potential SU-MIMO PMI with the subset that comprises the potential MU-MIMO PMIs that represent channels that have reduced interference with the channel represented by that potential SU-MIMO PMI; searching for an appropriate pairing PMI and the associated CQI for the UE.
摘要翻译：提供了一种用于搜索配对PMI的方法，包括：估计来自接入点发射机的MIMO无线传播信道到UE处的接收机; 使用由多个码字组成的码本量化估计信道，其结果是当前可应用于UE的实际SU-MIMO PMI; 估计与实际SU-MIMO PMI相对应的信道质量，从而产生用于UE的至少一个CQI; 从代码字的码本构造多个子集，其中每个子集包括潜在的MU-MIMO PMI，其表示对由潜在的SU-MIMO PMI之一表示的信道具有减小的干扰的信道; 将每个潜在的SU-MIMO PMI与包括潜在的MU-MIMO PMI的子集相关联，所述潜在MU-MIMO PMI表示与由该潜在SU-MIMO PMI表示的信道具有减小的干扰的信道; 搜索用于UE的适当配对PMI和相关联的CQI。

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