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    Coordinated multipoint transmission and reception (CoMP)
    23.
    发明授权
    Coordinated multipoint transmission and reception (CoMP) 有权

    公开(公告)号：US08891529B2

    公开(公告)日：2014-11-18

    申请号：US13948409

    申请日：2013-07-23

    Applicant: NEC Laboratories America, Inc.

    Inventor： Guosen Yue ,  Narayan Prasad ,  Meilong Jiang ,  Sampath Rangarajan

    IPC: H04L12/26 ,  H04W4/00 ,  H04W72/04 ,  H04L5/00

    Abstract: A communications method implemented in a transmission point (TP) used in a coordinated multipoint transmission and reception (CoMP) system is disclosed. The communications method comprises transmitting, to a user equipment (UE), attributers for up to four indicators indicating at least physical downlink shared channel (PDSCH) resource element (RE) mapping, and transmitting, to the UE, one of the four indicators, each of which is conveyed in 2 bits, wherein the four indicators comprises ‘00’, ‘01’, ‘10’, and ‘11’ corresponding to a first set, a second set, a third set, and a fourth set of parameters, respectively. Other methods, apparatuses, and systems are also disclosed.

    Codebook Construction
    24.
    发明申请
    Codebook Construction 有权
    码本建设

    公开(公告)号：US20140241449A1

    公开(公告)日：2014-08-28

    申请号：US14198653

    申请日：2014-03-06

    Applicant: NEC Laboratories America, Inc.

    Inventor： Narayan Prasad ,  Guosen Yue ,  Mohammad Khojastepour ,  Sampath Rangarajan

    IPC: H04L25/03

    CPC classification number: H04B7/0469 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0641 ,  H04B7/065 ,  H04L1/06 ,  H04L25/0391 ,  H04L27/20

    Abstract: A method implemented in a base station used in a wireless communications system is disclosed. The method comprises having a codebook including a plurality of precoding matrices, precoding data with one of the plurality of precoding matrices, and transmitting, to a user equipment, the precoded data, wherein each precoding matrix W satisfies W=W(1)W(2), where first matrix W(1) is chosen from first codebook (1), and second matrix W(2) is chosen from a second codebook. Other apparatuses, systems, and methods also are disclosed.

    Abstract translation: 公开了一种在无线通信系统中使用的基站中实现的方法。 该方法包括具有包括多个预编码矩阵的码本，与多个预编码矩阵之一进行预编码数据，并向用户设备发送预编码数据，其中每个预编码矩阵W满足W = W（1）W（ 2），其中从第一码本（1）中选择第一矩阵W（1），并且从第二码本中选择第二矩阵W（2）。 还公开了其他装置，系统和方法。

    Feedback and Scheduling for Coordinated Multi-Point (CoMP) Joint Transmission (JT) in Orthogonal Frequency Division Multiple Access (OFDMA)
    25.
    发明申请
    Feedback and Scheduling for Coordinated Multi-Point (CoMP) Joint Transmission (JT) in Orthogonal Frequency Division Multiple Access (OFDMA) 有权
    正交频分多址（OFDMA）中的协调多点（CoMP）联合传输（JT）的反馈和调度

    公开(公告)号：US20140133325A1

    公开(公告)日：2014-05-15

    申请号：US13845623

    申请日：2013-03-18

    Applicant: NEC LABORATORIES AMERICA, INC.

    Inventor： Narayan Prasad ,  Guosen Yue ,  Sampath Rangarajan ,  Meilong Jiang

    IPC: H04W24/08

    CPC classification number: H04B7/024 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04L1/0026 ,  H04W72/1231

    Abstract: A method implemented in a user equipment (UE) used in an orthogonal frequency division multiple access (OFDMA) wireless communications system supporting coordinated multi-point (CoMP) joint transmission (JT) is disclosed. The method includes measuring reference signal received power (RSRP), transmitting, to a network, first feedback on the RSRP, receiving, from the network, a CoMP measurement set, conducting pre-scheduling CoMP UE fallback according to the CoMP measurement set, computing channel quality and direction information according to a UE category, and transmitting, to the network, second feedback on the channel quality and direction information. Other methods, apparatuses, and systems also are disclosed.

    Abstract translation: 公开了一种在支持协调多点（CoMP）联合传输（JT）的正交频分多址（OFDMA）无线通信系统中使用的用户设备（UE）中实现的方法。 该方法包括测量参考信号接收功率（RSRP），向网络发送关于RSRP的第一反馈，从网络接收CoMP测量集，根据CoMP测量集进行预调度CoMP UE后退，计算 信道质量和方向信息，并且向网络发送关于信道质量和方向信息的第二反馈。 还公开了其它方法，装置和系统。

    Buffer-Aware Packet Scheduling for Downlink Multiuser Systems
    26.
    发明申请
    Buffer-Aware Packet Scheduling for Downlink Multiuser Systems 审中-公开
    用于下行链路多用户系统的缓冲区意识分组调度

    公开(公告)号：US20140086178A1

    公开(公告)日：2014-03-27

    申请号：US14040005

    申请日：2013-09-27

    Applicant: NEC Laboratories America, Inc.

    Inventor： Sampath Rangarajan ,  Guosen Yue ,  Yufeng Wang

    IPC: H04W72/12

    CPC classification number: H04W72/12 ,  H04W72/1221 ,  H04W72/1226

    Abstract: An inventive duffer aware adaptive BAA scheduler considers both channel and buffer conditions to make scheduling decisions. Specifically, channel conditions are used to select candidate users, i.e., only the users whose transmission rates satisfy a certain condition are considered as candidate users. It guarantees a maximum of throughput deduction. Then the buffer conditions are used to make scheduling decisions among all the candidate users, i.e., the user with largest queue backlog among candidate users will be scheduled, to provide improved delay performance.

    Abstract translation: 本发明的缓冲感知自适应BAA调度器考虑信道和缓冲器条件来做出调度决定。 具体地，使用信道条件来选择候选用户，即仅将传输速率满足一定条件的用户视为候选用户。 它保证最大的吞吐量扣除。 然后，缓冲器条件用于在所有候选用户之间进行调度决定，即将调度候选用户中具有最大队列积压的用户，以提供改进的延迟性能。

    Coordinated Multipoint Transmission and Reception (CoMP)
    27.
    发明申请
    Coordinated Multipoint Transmission and Reception (CoMP) 审中-公开
    协调多点传输和接收（CoMP）

    公开(公告)号：US20140045510A1

    公开(公告)日：2014-02-13

    申请号：US13948388

    申请日：2013-07-23

    Applicant: NEC Laboratories America, Inc.

    Inventor： Guosen Yue ,  Narayan Prasad ,  Meilong Jiang ,  Sampath Rangarajan

    IPC: H04L5/00

    CPC classification number: H04J11/0053 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/063 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/0068 ,  H04L1/0077 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0091 ,  H04W24/10 ,  H04W72/042

    Abstract: A communications method implemented in a transmission point (TP) used in a coordinated multipoint transmission and reception (CoMP) system is disclosed. The communications method includes transmitting, to a user equipment (UE), an indication of a channel state information (CSI) process in a CSI pattern comprising a set of CSI processes, wherein the UE is configured with the CSI process for at least one of the other CSI processes in the CSI pattern, and wherein a reported rank indication (RI) for the CSI process is the same as an RI for said at least one of the other CSI processes. Other methods, apparatuses, and systems are also disclosed.

    Abstract translation: 公开了在协调多点发送和接收（CoMP）系统中使用的传输点（TP）中实现的通信方法。 通信方法包括向用户设备（UE）发送包括一组CSI进程的CSI模式中的信道状态信息（CSI）处理的指示，其中，所述UE配置有CSI过程，用于以下各项中的至少一个： CSI模式中的其他CSI进程，并且其中针对所述CSI进程的所报告的秩指示（RI）与所述至少一个其他CSI进程的RI相同。 还公开了其它方法，装置和系统。

    Codebook construction
    29.
    发明授权
    Codebook construction 有权
    Codebook建设

    公开(公告)号：US09385899B2

    公开(公告)日：2016-07-05

    申请号：US14204838

    申请日：2014-03-11

    Applicant: NEC Laboratories America, Inc.

    Inventor： Narayan Prasad ,  Guosen Yue ,  Mohammad Khojastepour ,  Sampath Rangarajan

    IPC: H04B7/04 ,  H04L25/03 ,  H04B7/06 ,  H04L1/06

    CPC classification number: H04B7/0469 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0641 ,  H04B7/065 ,  H04L1/06 ,  H04L25/0391 ,  H04L27/20

    Abstract: A method implemented in a base station used in a wireless communications system is disclosed. The method comprises having 1-layer, 2-layer, 3-layer, and 4-layer codebooks for 4 transmit antenna (4TX) transmission, each codebook including a plurality of precoding matrices, precoding data with one of the plurality of precoding matrices, and transmitting, to a user equipment, the precoded data, wherein each of the 1-layer and 2-layer codebooks comprises a first codebook and a second codebook, and wherein each precoding matrix in the first codebook comprises a first index and a second index. Other apparatuses, systems, and methods also are disclosed.

    Abstract translation: 公开了一种在无线通信系统中使用的基站中实现的方法。 该方法包括具有用于4个发送天线（4TX）传输的1层，2层，3层和4层码本，每个码本包括多个预编码矩阵，具有多个预编码矩阵之一的预编码数据， 以及向所述用户设备发送所述预编码数据，其中所述1层和2层码本中的每一个包括第一码本和第二码本，并且其中所述第一码本中的每个预编码矩阵包括第一索引和第二索引 。 还公开了其他装置，系统和方法。

    Feedback and scheduling for coordinated multi-point (CoMP) joint transmission (JT) in orthogonal frequency division multiple access (OFDMA)
    30.
    发明授权
    Feedback and scheduling for coordinated multi-point (CoMP) joint transmission (JT) in orthogonal frequency division multiple access (OFDMA) 有权
    正交频分多址（OFDMA）中协调多点（CoMP）联合传输（JT）的反馈和调度

    公开(公告)号：US09337906B2

    公开(公告)日：2016-05-10

    申请号：US13845623

    申请日：2013-03-18

    Applicant: NEC Laboratories America, Inc.

    Inventor： Narayan Prasad ,  Guosen Yue ,  Sampath Rangarajan ,  Meilong Jiang

    IPC: H04B7/02 ,  H04L1/00 ,  H04W72/12 ,  H04B7/06

    CPC classification number: H04B7/024 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04L1/0026 ,  H04W72/1231

    Abstract: A method implemented in a user equipment (UE) used in an orthogonal frequency division multiple access (OFDMA) wireless communications system supporting coordinated multi-point (CoMP) joint transmission (JT) is disclosed. The method includes measuring reference signal received power (RSRP), transmitting, to a network, first feedback on the RSRP, receiving, from the network, a CoMP measurement set, conducting pre-scheduling CoMP UE fallback according to the CoMP measurement set, computing channel quality and direction information according to a UE category, and transmitting, to the network, second feedback on the channel quality and direction information. Other methods, apparatuses, and systems also are disclosed.

    Abstract translation: 公开了一种在支持协调多点（CoMP）联合传输（JT）的正交频分多址（OFDMA）无线通信系统中使用的用户设备（UE）中实现的方法。 该方法包括测量参考信号接收功率（RSRP），向网络发送关于RSRP的第一反馈，从网络接收CoMP测量集，根据CoMP测量集进行预调度CoMP UE后退，计算 信道质量和方向信息，并且向网络发送关于信道质量和方向信息的第二反馈。 还公开了其它方法，装置和系统。

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