公开(公告)号：WO2012148896A2

公开(公告)日：2012-11-01

申请号：PCT/US2012/034767

申请日：2012-04-24

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  MURIAS, Ronald G. ,  WANG, Lei ,  LI, Yingxue K.

Inventor： MURIAS, Ronald G. ,  WANG, Lei ,  LI, Yingxue K.

IPC: H04L1/00

CPC classification number: H04L1/0077 ,  H04L1/0009 ,  H04L1/0026 ,  H04L2001/0093 ,  H04L2001/0097 ,  H04W4/70

Abstract: A method for multiple-input multiple-output (MIMO) communications between wireless transmit and receive units (WRTUs) includes receiving, at a aggregate point (DAP), data from a plurality of wireless transmit/receive units (WTRUs), aggregating, at the DAP, the data received from the plurality of WTRUs to provide an aggregate signal, transmitting the aggregate signal to at least two of the plurality of WTRUs for re-transmission, and determining a coding scheme for re-transmission of the data by the at least two of the plurality of WTRUs.

Abstract translation: 一种用于无线发射和接收单元（WRTU）之间的多输入多输出（MIMO）通信的方法包括在聚合点（DAP）处接收来自多个无线发射/接收单元（WTRU）的数据， 所述DAP，从所述多个WTRU接收到的数据以提供聚合信号，将所述聚合信号发送到所述多个WTRU中的至少两个用于重新发送，以及确定用于由所述多个WTRU重新发送所述数据的编码方案 多个WTRU中的至少两个。

公开(公告)号：WO2012094243A1

公开(公告)日：2012-07-12

申请号：PCT/US2011/068081

申请日：2011-12-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  XI, Fengjun ,  PELLETIER, Benoit ,  CAI, Lujing ,  ZHANG, Hong, O. ,  LEVY, Joseph, S. ,  PANI, Diana ,  LI, Yingxue K.

Inventor： XI, Fengjun ,  PELLETIER, Benoit ,  CAI, Lujing ,  ZHANG, Hong, O. ,  LEVY, Joseph, S. ,  PANI, Diana ,  LI, Yingxue K.

IPC: H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/0404 ,  H04B7/0456 ,  H04B7/0641

Abstract: A method and apparatus for signaling for multi - antenna transmission with precoding are disclosed. Precoder phase information may be signaled using bit sequences that provide a degree of error tolerance in that precoder phases having large differences are signaled using bit sequences having large Hamming distances. A method comprising: receiving at a wireless transmit/receive unit (WTRU) a precoding indicator signal representing a sequence of signaling bits corresponding to a desired precoder phase value; obtaining the desired precoder phase value by comparing the sequence of signaling bits to a plurality of predetermined sequences of signaling bits in which pairs of predetermined sequences of signaling are opposites of each other and which correspond to precoder phase values that differ by 180 degrees; and, applying a set of weighting values to a WTRU uplink signal stream transmitted over multiple antennas where the set of weighting values have a phase differential equal to the desired precoder phase value.

Abstract translation: 公开了一种用于具有预编码的多天线传输信令的方法和装置。 可以使用提供一定程度的误差容限的比特序列来发送预编码器相位信息，因为使用具有大汉明距离的比特序列来发信号通知具有较大差异的预编码器相位。 一种方法，包括：在无线发射/接收单元（WTRU）处接收表示对应于期望的预编码器相位值的信令比特序列的预编码指示符信号; 通过将信令比特的序列与信令比特的多个预定序列进行比较来获得期望的预编码器相位值，其中预定信令序列对彼此相对，并且对应于相差180度的预编码器相位值; 以及将一组加权值应用于在多个天线上发送的WTRU上行链路信号流，其中该组加权值具有等于期望的预编码器相位值的相位差。

公开(公告)号：WO2012064998A3

公开(公告)日：2012-05-18

申请号：PCT/US2011/060258

申请日：2011-11-10

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  SAHIN, Onur ,  LI, Jialing ,  LI, Yingxue K. ,  PIETRASKI, Philip J.

Inventor： SAHIN, Onur ,  LI, Jialing ,  LI, Yingxue K. ,  PIETRASKI, Philip J.

IPC: H04L1/16 ,  H04L1/00

Abstract: Techniques for inter-cell interference cancellation are disclosed. At each transmitter, the data (message) may split into two or more layers, (e.g., common and private parts), and may be encoded in different rates, allocated with different powers, possibly beamformed using different precoders, and transmitted through the same physical channels. The common part is to be decoded at both the intended and unintended users, while the private part is to be decoded at the intended user.

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

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  LI, Yingxue, K. ,  SHENG, Hongsan ,  ZHANG, Guodong ,  OLESEN, Robert, L. ,  LU, Enoch ,  LU, I-tai

Inventor： LI, Yingxue, K. ,  SHENG, Hongsan ,  ZHANG, Guodong ,  OLESEN, Robert, L. ,  LU, Enoch ,  LU, I-tai

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0617 ,  H04B7/065

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2011085082A3

公开(公告)日：2011-10-06

申请号：PCT/US2011020346

申请日：2011-01-06

Applicant: INTERDIGITAL PATENT HOLDINGS ,  PORAT RON ,  PIETRASKI PHILIP J ,  LI YINGXUE K ,  SHENG HONGSAN

Inventor： PORAT RON ,  PIETRASKI PHILIP J ,  LI YINGXUE K ,  SHENG HONGSAN

IPC: H04B7/06

CPC classification number: H04B7/063 ,  H04B7/0639 ,  H04B7/065

Abstract: 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.

Abstract translation: 用于传送反馈和预编码矩阵指示符（PMI）的方法和系统包括确定PMI和秩-1或秩-2反馈，确定PMI与其优选反馈矩阵之间的被称为增量度量的差，并且传送增量 度量到基站。 德耳塔度量传输的定时可以基于检测到超过阈值，由基站用信号通知的间隔或其他因素。 可以通过操纵确定的增量度量来降低开销，从而需要传输更少的复值，并且基站可以估计未传输的增量度量的值。 增量度量可以使用相位和/或幅度调制方法来映射。 可以通过交替地传输增量度量的元素和那些元素的复共轭来重复Δ度量传输。

公开(公告)号：WO2013022751A8

公开(公告)日：2014-04-10

申请号：PCT/US2012049527

申请日：2012-08-03

Applicant: INTERDIGITAL PATENT HOLDINGS ,  ZHANG GUODONG ,  MARINIER PAUL ,  LI YINGXUE K ,  TERRY STEPHEN E ,  PANI DIANA

Inventor： ZHANG GUODONG ,  MARINIER PAUL ,  LI YINGXUE K ,  TERRY STEPHEN E ,  PANI DIANA

IPC: H04L1/16 ,  H04B7/02 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W72/04 ,  H04B7/022 ,  H04B7/0626 ,  H04L1/1607 ,  H04L1/1861 ,  H04L5/0055 ,  H04L2001/0092 ,  H04W28/06 ,  H04W72/12

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2012148896A3

公开(公告)日：2013-04-11

申请号：PCT/US2012034767

申请日：2012-04-24

Applicant: INTERDIGITAL PATENT HOLDINGS ,  MURIAS RONALD G ,  WANG LEI ,  LI YINGXUE K

Inventor： MURIAS RONALD G ,  WANG LEI ,  LI YINGXUE K

IPC: H04L1/00

CPC classification number: H04L1/0077 ,  H04L1/0009 ,  H04L1/0026 ,  H04L2001/0093 ,  H04L2001/0097 ,  H04W4/005

Abstract: A method for multiple-input multiple-output (MIMO) communications between wireless transmit and receive units (WRTUs) includes receiving, at a aggregate point (DAP), data from a plurality of wireless transmit/receive units (WTRUs), aggregating, at the DAP, the data received from the plurality of WTRUs to provide an aggregate signal, transmitting the aggregate signal to at least two of the plurality of WTRUs for re-transmission, and determining a coding scheme for re-transmission of the data by the at least two of the plurality of WTRUs.

Abstract translation: 一种用于无线发射和接收单元（WRTU）之间的多输入多输出（MIMO）通信的方法包括在聚合点（DAP）处接收来自多个无线发射/接收单元（WTRU）的数据， 所述DAP，从所述多个WTRU接收到的数据以提供聚合信号，将所述聚合信号发送到所述多个WTRU中的至少两个用于重新发送，以及确定用于由所述多个WTRU重新发送所述数据的编码方案 多个WTRU中的至少两个。

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

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  ZHANG, Goudong ,  MARINIER, Paul ,  LI, Yingxue, K. ,  TERRY, Stephen, E. ,  PANI, Diana

Inventor： ZHANG, Goudong ,  MARINIER, Paul ,  LI, Yingxue, K. ,  TERRY, Stephen, E. ,  PANI, Diana

IPC: H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04B7/02 ,  H04W72/04

CPC classification number: H04W72/04 ,  H04B7/022 ,  H04B7/0626 ,  H04L1/1607 ,  H04L1/1861 ,  H04L5/0055 ,  H04L2001/0092 ,  H04W28/06 ,  H04W72/12

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2012158959A1

公开(公告)日：2012-11-22

申请号：PCT/US2012/038424

申请日：2012-05-17

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  WANG, Carl ,  LI, Yingxue K. ,  KEARNEY, Kenneth P. ,  PIETRASKI, Philip J. ,  TERRY, Stephen E. ,  KAUR, Samian ,  STERN-BERKOWITZ, Janet A. ,  CASTOR, Douglas R.

Inventor： WANG, Carl ,  LI, Yingxue K. ,  KEARNEY, Kenneth P. ,  PIETRASKI, Philip J. ,  TERRY, Stephen E. ,  KAUR, Samian ,  STERN-BERKOWITZ, Janet A. ,  CASTOR, Douglas R.

IPC: H04W16/08 ,  H04W52/04

CPC classification number: H04W52/146 ,  H04B7/0617 ,  H04B7/0626 ,  H04L5/0073 ,  H04W52/267 ,  H04W52/325 ,  H04W52/38 ,  H04W72/0413 ,  H04W84/12

Abstract: Methods and apparatus for changing cell range coverage are disclosed. The coverage may be changed on a per-subframe basis. An antenna beam elevation tilting angle may be adjusted to provide different effective downlink (DL) coverage. For example, a subframe may be a small tilt subframe or a large tilt subframe. A network or evolved NodeB (eNB) may determine data channel transmission power to adjust cell range per subframe. Low Power Subframe (LPS) may be used alone or with Almost Blank Subframe (ABS) to transmit data. Timing Advance (TA) handling for uplink (UL) transmissions is described. A common TA (CTA) may be determined for multi-site UL signaling. UL power control may be determined for UL transmission to multiple sites. Radio Link Monitoring (RLM) may be performed for multiple sites on a carrier frequency. A wireless transmit/receive unit (WTRU) may maintain synchronization in selected subframes for multiple cells.

Abstract translation: 公开了改变单元范围覆盖的方法和装置。 可以在每个子帧的基础上改变覆盖。 可以调整天线波束仰角倾斜角以提供不同的有效下行链路（DL）覆盖。 例如，子帧可以是小倾斜子帧或大倾斜子帧。 网络或演进型节点B（eNB）可以确定数据信道发射功率以调整每子帧的小区范围。 低功率子帧（LPS）可以单独使用或与几乎空白子帧（ABS）一起使用来传输数据。 描述了用于上行链路（UL）传输的定时提前（TA）处理。 可以为多站点UL信令确定公共TA（CTA）。 可以确定UL传输到多个站点的UL功率控制。 可以对载波频率上的多个站点执行无线电链路监视（RLM）。 无线发射/接收单元（WTRU）可以在多个小区的选定子帧中保持同步。

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

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  LI, Yingxue, K. ,  PIETRASKI, Philip, J. ,  LEVY, Joseph, S. ,  SHENG, Hongsan

Inventor： LI, Yingxue, K. ,  PIETRASKI, Philip, J. ,  LEVY, Joseph, S. ,  SHENG, Hongsan

IPC: H04L1/00 ,  H04B7/02

CPC classification number: H04W72/085 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L2001/0093

Abstract: 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.

Abstract translation: 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。