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1. 发明申请

WO2012125931A1 METHODS FOR PROVIDING PRECODING AND FEEDBACK AND BASE STATION 审中-公开
标题翻译：提供预测和反馈和基站的方法
公开(公告)号：WO2012125931A1
公开(公告)日：2012-09-20
申请号：PCT/US2012/029453
申请日：2012-03-16
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , LI, Yingxue, K. , SHENG, Hongsan , ZHANG, Guodong , OLESEN, Robert, L. , LU, Enoch , LU, I-tai
发明人： LI, Yingxue, K. , SHENG, Hongsan , ZHANG, Guodong , OLESEN, Robert, L. , LU, Enoch , LU, I-tai
IPC分类号： H04B7/06
CPC分类号： H04B7/0626 , H04B7/0617 , H04B7/065
摘要： Beamforming, precoding, and feedback systems and methods are provided. For example, user equipment (UE) estimates an effective channel using a predetermined channel independent matrix or beamforming. Such an effective channel estimate along with other feedback information including a channel quality indicator (CQI) and a precoding matrix indicator (PMI) is fed back to an eNB. The eNB may precode data and may provide channel estimation at the eNB using a double codebook or double precoder. For example, the eNB may precode data based on the feedback information (e.g. using a channel dependent precoder) and the eNB may precode the data based on the channel independent matrix (e.g. using a channel independent precoder) that may be channel independent and/or preset (e.g. known to both eNB and UE), and may change each TTI. Such precoding along with scaling factors approximated from the PMI or CQI feedback may be used to enable the eNB to estimate a channel based covariance matrix and design the channel dependent precoder.
摘要翻译：提供波束形成，预编码和反馈系统和方法。例如，用户设备（UE）使用预定的信道无关矩阵或波束形成来估计有效信道。将这样的有效信道估计与包括信道质量指示符（CQI）和预编码矩阵指示符（PMI）的其他反馈信息一起反馈给eNB。 eNB可以预编码数据，并且可以使用双码本或双重预编码器在eNB处提供信道估计。例如，eNB可以基于反馈信息（例如，使用信道相关预编码器）对数据进行预编码，并且eNB可以基于与信道无关的矩阵（例如，使用信道独立的预编码器）对数据进行预编码，该矩阵可以是信道独立的和/或预置（例如，已知的eNB和UE），并且可以改变每个TTI。这样的预编码以及从PMI或CQI反馈近似的缩放因子可以用于使得eNB能够估计基于信道的协方差矩阵并设计信道相关预编码器。

2. 发明申请

WO2012031098A1 ITERATIVE NONLINEAR PRECODING AND FEEDBACK FOR MULTI-USER MULTIPLE -INPUT MULTIPLE-OUTPUT (MU-MIMO) WITH CHANNEL STATE INFORMATION(CSI) IMPAIRMENTS 审中-公开
标题翻译：用于多用户多输入多输出（MU-MIMO）的迭代非线性预处理和反馈与信道状态信息（CSI）的重要性
公开(公告)号：WO2012031098A1
公开(公告)日：2012-03-08
申请号：PCT/US2011/050176
申请日：2011-09-01
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , SHENG, Hongsan , LI, Yingxue, K.
发明人： SHENG, Hongsan , LI, Yingxue, K.
IPC分类号： H04L25/03 , H04L1/00 , H04B1/06
CPC分类号： H04B7/0417 , H04B7/0452 , H04B7/0465 , H04B7/0478 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04B7/0654 , H04B7/0663 , H04L1/0026 , H04L5/0007 , H04L25/0202 , H04L25/03343 , H04L25/4975 , H04L2025/03802
摘要： An iterative nonlinear preceding method based on, for example. Tornlinson- Harashima Preceding (THP) may be implemented in a MU-MIMO system to alleviate the performance degradation due to mismatches between actual Channel State Information (CSI) and impaired CSI available at a transmitter. In such a method, the effective channel may be fed back rather than a nonprecoded channel for a relay backhaul channel such that the iterative preecoding and effective channel feedback may reduce the sensitivity to quantization errors and improve spectrum usage efficiency. Additionally, a Channel Quality Indicator (CQI) may be used to estimate a signal-to-interference-plus-noise (SINK) ratio based on quantization errors to accurately derive the effective channel quality of the receiver.
摘要翻译：例如，基于迭代非线性的前述方法。 Tornlinson-Harashima之前（THP）可以在MU-MIMO系统中实现，以减轻由于实际信道状态信息（CSI）与发射机可用的受损CSI之间的不匹配而导致的性能下降。在这种方法中，有效信道可以被反馈而不是用于中继回程信道的非重新编码信道，使得迭代预编码和有效信道反馈可以降低对量化误差的灵敏度并提高频谱使用效率。此外，可以使用信道质量指示符（CQI）来基于量化误差来估计信号与干扰加噪声（SINK）比，以精确地导出接收机的有效信道质量。

3. 发明申请

WO2011085082A2 AUGMENTED WIRELESS FEEDBACK 审中-公开
标题翻译：已通知无线反馈
公开(公告)号：WO2011085082A2
公开(公告)日：2011-07-14
申请号：PCT/US2011/020346
申请日：2011-01-06
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , PORAT, Ron , PIETRASKI, Philip, J. , LI, Yingxue, K. , SHENG, Hongsan
发明人： PORAT, Ron , PIETRASKI, Philip, J. , LI, Yingxue, K. , SHENG, Hongsan
IPC分类号： H04B7/06
CPC分类号： H04B7/063 , H04B7/0639 , H04B7/065
摘要： Methods and systems for transmitting feedback and precoding matrix indicators (PMI) include determining PMI and rank-1 or rank-2 feedback, determining a difference, referred to as a delta metric, between the PMI and its preferred feedback matrix, and transmitting the delta metric to a base station. The timing of delta metric transmissions can be based on detecting the exceeding of a threshold, intervals signaled by a base station, or other factors. Overhead may be reduced by manipulating a determined delta metric so that fewer complex values need to be transmitted and a base station can estimate values of the delta metric that are not transmitted. The delta metric may be mapped using phase and/or amplitude modulation methods. Delta metric transmissions may be repeated by alternately transmitting elements of the delta metric and complex conjugates of those elements.
摘要翻译：用于发送反馈和预编码矩阵指示符（PMI）的方法和系统包括确定PMI和rank-1或rank-2反馈，确定PMI和其优选的反馈矩阵之间的差异（称为增量度量），并且将Δ 到基站的度量。增量度量传输的定时可以基于检测到超过阈值，由基站发信号的间隔或其他因素。可以通过操纵确定的增量度量来减少开销，使得需要发送更少的复数值，并且基站可以估计未发送的增量度量的值。可以使用相位和/或幅度调制方法来映射增量度量。可以通过交替地发送这些元件的增量度量和复共轭的元素来重复Delta度量传输。

4. 发明申请

WO2013086164A1 METHOD AND APPARATUS FOR A MILLIMETER WAVE COMMUNICATION SYSTEM 审中-公开
标题翻译：一种用于微波通信系统的方法和装置
公开(公告)号：WO2013086164A1
公开(公告)日：2013-06-13
申请号：PCT/US2012/068206
申请日：2012-12-06
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： WANG, Carl , LI, Yingxue, K. , SAHIN, Onur , PIETRASKI, Philip, J. , PRAGADA, Ravikumar, V. , CHARLTON, Gregg, A.
IPC分类号： H04W48/16 , H04W48/12 , H04W36/00 , H04W36/14
CPC分类号： H04W40/12 , H04W36/0055 , H04W36/14 , H04W48/12 , H04W48/16 , H04W88/02
摘要： Methods and apparatus for establishment of a milli-meter Wave (mmW) link communication include initial selection of candidate mmW Base stations (mBs) and configuration of mmW acquisition resources and procedures, both with the assistance of the cellular network. Further methods transmit mmW acquisition beacons, process mmW acquisition beacons to achieve mmW beam alignment and timing synchronization, and uplink (UL) reporting via cellular or mmW links. In an example, a mmW wireless transmit/receive unit (WTRU) transmits millimeter wave (mmW) WTRU (mmW WTRU) information over a cellular system to a base station, receives a candidate list of candidate mmW base stations (mB) including mmW acquisition start timing information and calculates correlation values around the received mmW acquisition start timing information for the mBs in the candidate list. The mmw WTRU performs sliding window correlations using signature sequences corresponding to mBs and beams in the candidate list.
摘要翻译：用于建立毫米波（mmW）链路通信的方法和装置包括在蜂窝网络的协助下初始选择候选mmW基站（mB）和配置mmW采集资源和程序。进一步的方法传输mmW采集信标，处理mmW采集信标，以实现mmW光束对准和定时同步，以及通过蜂窝或mmW链路的上行链路（UL）报告。在一个示例中，mmW无线发射/接收单元（WTRU）通过蜂窝系统向基站发送毫米波（mmW）WTRU（mmW WTRU）信息，接收包括mmW采集的候选mmW基站（mB）的候选列表开始定时信息，并计算接收到的候选列表中的mB的接收的mmW获取开始定时信息的相关值。 mmw WTRU使用与候选列表中的mB和波束相对应的签名序列来执行滑动窗口相关。

5. 发明申请

WO2013022751A1 UPLINK FEEDBACK FOR MULTI-SITE SCHEDULING 审中-公开
标题翻译：用于多站点调度的上行反馈
公开(公告)号：WO2013022751A1
公开(公告)日：2013-02-14
申请号：PCT/US2012/049527
申请日：2012-08-03
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , ZHANG, Goudong , MARINIER, Paul , LI, Yingxue, K. , TERRY, Stephen, E. , PANI, Diana
发明人： ZHANG, Goudong , MARINIER, Paul , LI, Yingxue, K. , TERRY, Stephen, E. , PANI, Diana
IPC分类号： H04L1/16 , H04L1/18 , H04L5/00 , H04B7/02 , H04W72/04
CPC分类号： H04W72/04 , H04B7/022 , H04B7/0626 , H04L1/1607 , H04L1/1861 , H04L5/0055 , H04L2001/0092 , H04W28/06 , H04W72/12
摘要： Systems, methods, and instrumentalities are disclosed for a user equipment (UE) to provide feedback in a multi-site scheduling system (e.g., a system where multiple entities may schedule and/or send data to the UE). For example, the UE may receive a first data from a first network entity and a second data from a second network entity. A network entity may include entities that transmit data and/or control information to the UE, e.g., an eNodeB (eNB). The UE may generate feedback relating to received data, such as ACK/NACK information or channel state information (CSI). The UE may send a first feedback relating to the first data in a first subframe and a second feedback relating to the second data in a second subframe.
摘要翻译：公开了用于用户设备（UE）在多站点调度系统（例如，其中多个实体可以向UE调度和/或发送数据的系统）中提供反馈的系统，方法和工具。例如，UE可以从第一网络实体接收第一数据，并从第二网络实体接收第二数据。网络实体可以包括向UE（例如，eNodeB（eNB））发送数据和/或控制信息的实体。 UE可以产生与接收到的数据有关的反馈，例如ACK / NACK信息或信道状态信息（CSI）。 UE可以在第二子帧中发送与第一子帧中的第一数据有关的第一反馈和与第二数据有关的第二反馈。

6. 发明申请

WO2012075387A1 SYSTEMS AND METHODS FOR IMPROVING CHANNEL QUALITY INDICATION FEEDBACK ACCURACY IN WIRELESS COMMUNICATION USING INTERFERENCE PREDICTION 审中-公开
标题翻译：使用干扰预测在无线通信中提高信道质量指示反馈精度的系统和方法
公开(公告)号：WO2012075387A1
公开(公告)日：2012-06-07
申请号：PCT/US2011/063052
申请日：2011-12-02
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , LI, Yingxue, K. , PIETRASKI, Philip, J. , LEVY, Joseph, S. , SHENG, Hongsan
发明人： LI, Yingxue, K. , PIETRASKI, Philip, J. , LEVY, Joseph, S. , SHENG, Hongsan
IPC分类号： H04L1/00 , H04B7/02
CPC分类号： H04W72/085 , H04B7/024 , H04B7/0417 , H04B7/0452 , H04B7/0632 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L2001/0093
摘要： Systems and methods for channel quality indicator (CQI) feedback may be disclosed. At a current transmission time interval, precoder and/or modulation information that may be used at or associated with a future transmission time interval may be determined. As such, at a current transmission time interval, precoder and/or modulation information that may be used to select a modulation or coding scheme (MCS) and/or schedule transmission at a future transmission time interval may be predicted in the current transmission time interval. The precoder and/or modulation information may be broadcast and received such that the information may be used to estimate a channel quality indicator (CQI) at the current transmission time interval. The estimated CQI may be used to select a modulation and coding scheme (MCS), schedule transmissions, and the like.
摘要翻译：可以公开用于信道质量指示符（CQI）反馈的系统和方法。在当前的传输时间间隔，可以确定可在未来传输时间间隔中或与之相关联的预编码器和/或调制信息。这样，在当前传输时间间隔，可以在当前传输时间间隔中预测可用于选择调制或编码方案（MCS）和/或调度传输的预编码器和/或调制信息。可以广播和接收预编码器和/或调制信息，使得可以使用该信息来估计当前传输时间间隔的信道质量指示符（CQI）。估计的CQI可以用于选择调制和编码方案（MCS），调度传输等。

7. 发明申请

WO2011100646A1 SENDING FEEDBACK FOR MULTIPLE DOWNLINK CARRIERS 审中-公开
标题翻译：发送反馈给多个下行链路载波
公开(公告)号：WO2011100646A1
公开(公告)日：2011-08-18
申请号：PCT/US2011/024666
申请日：2011-02-12
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , CAI, Lujing , PELLETIER, Benoit , ZHANG, Hong, O. , XI, Fengjun , LI, Yan , LI, Yingxue, K. , CAVE, Christopher, R.
发明人： CAI, Lujing , PELLETIER, Benoit , ZHANG, Hong, O. , XI, Fengjun , LI, Yan , LI, Yingxue, K. , CAVE, Christopher, R.
IPC分类号： H04L1/00 , H04L1/16 , H04L5/00 , H04B7/06
CPC分类号： H04W72/04 , H04L1/0026 , H04L1/0028 , H04L1/0073 , H04L1/08 , H04L1/1671 , H04L1/1812 , H04L5/0053 , H04L2025/03808 , H04W52/325
摘要： Feedback information for multiple serving cells are transmitted on high speed dedicated physical control channel (HS-DPCCH). A slot format for transmitting feedback information is determined based on the number of configured secondary serving cells and whether multiple input multiple-output (MIMO) is configured in the serving cells. Spreading factor is reduced to 128 when two secondary serving cells are configured and MIMO is configured in at least one of the two configured secondary serving cells, or when three secondary serving cells are configured. The serving cells are grouped into feedback groups, each feedback group having one or more serving cells. Channel coding may be applied to feedback information for the feedback groups. The resulting encoded feedback information for the feedback groups is concatenated to form composite feedback information.
摘要翻译：用于多个服务小区的反馈信息在高速专用物理控制信道（HS-DPCCH）上发送。用于发送反馈信息的时隙格式基于所配置的辅助服务小区的数量确定，并且是否在服务小区中配置多输入多输出（MIMO）。当配置两个辅助服务小区并且在两个配置的辅助服务小区中的至少一个中配置MIMO时，或者当配置三个辅助服务小区时，扩频因子减少到128。服务小区被分组成反馈组，每个反馈组具有一个或多个服务小区。信道编码可以应用于反馈组的反馈信息。所产生的用于反馈组的编码的反馈信息被级联以形成复合反馈信息。

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