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    Method and apparatus for scheduling transmissions in a wireless communication system
    21.
    发明授权
    Method and apparatus for scheduling transmissions in a wireless communication system 有权
    用于在无线通信系统中调度传输的方法和装置

    公开(公告)号：US08103218B2

    公开(公告)日：2012-01-24

    申请号：US11966859

    申请日：2007-12-28

    Applicant: Xiaoxin Wu ,  Guangjie Li ,  Ma Zhangyong ,  May Wu

    Inventor： Xiaoxin Wu ,  Guangjie Li ,  Ma Zhangyong ,  May Wu

    IPC: H04B17/00

    CPC classification number: H04W72/1257 ,  H04L1/0017 ,  H04L1/0026 ,  H04L1/0035 ,  H04W72/1226

    Abstract: Machine-readable media, methods, apparatus and system for scheduling transmissions in a wireless communication system are described. In some embodiments, a base station may comprise a network interface device to receive and process a long-term signal to interference plus noise ratio (SINR) and a channel quality indicator (CQI) from each subscriber station of a plurality of subscriber stations; a reference signal to interference plus noise ratio determining logic to determine a reference signal to interference plus noise ratio (Ref_SINR) for the each subscriber station; and a target fairness factor determining logic to determine a target fairness factor (TFF) for the each subscriber station; a real fairness factor determining logic to determine a real fairness factor (RFF) for the each subscriber station; and a pseudo CQI calculating logic to calculate a pseudo CQI for the each subscriber station based at least in part on the CQI, SINR, Ref_SINR, TFF and RFF.

    Abstract translation: 描述了用于在无线通信系统中调度传输的机器可读介质，方法，装置和系统。 在一些实施例中，基站可以包括网络接口设备，用于从多个用户站的每个用户站接收和处理长期信号与干扰加噪声比（SINR）和信道质量指示符（CQI）; 参考信号到干扰加噪声比确定逻辑，以确定每个用户站的参考信号与干扰加噪声比（Ref_SINR）; 以及用于确定每个用户站的目标公平因子（TFF）的目标公平因子确定逻辑; 确定用于每个用户站的真实公平因子（RFF）的真实公平因子确定逻辑; 以及伪CQI计算逻辑，用于至少部分地基于CQI，SINR，Ref_SINR，TFF和RFF来计算每个用户站的伪CQI。

    Method and apparatus for allocating power in a MU-MIMO communication system
    22.
    发明授权
    Method and apparatus for allocating power in a MU-MIMO communication system 失效
    在MU-MIMO通信系统中分配功率的方法和装置

    公开(公告)号：US08078212B2

    公开(公告)日：2011-12-13

    申请号：US12057194

    申请日：2008-03-27

    Applicant: Guangjie Li ,  Yang Gao ,  May Wu

    Inventor： Guangjie Li ,  Yang Gao ,  May Wu

    IPC: H04B7/00

    CPC classification number: H04W52/267 ,  H04W52/143 ,  H04W52/225 ,  H04W52/241 ,  H04W52/265 ,  H04W72/1226 ,  H04W72/1257

    Abstract: Machine-readable media, methods, apparatus and system for allocating power in a MU-MIMO communicating system are described. In some embodiments, an apparatus of a base station in the MU-MIMO communication system may comprise: a power calculating logic to calculate a power for each user of a plurality of users communicating with the base station in the MU-MIMO system, based upon an average power and a power increment. The power calculating logic may further comprise an average power logic to calculate the average power among the plurality of users based upon a total power for the base station to communicate with the plurality of users, and a power increment logic to determine the power increment for the each user based upon at least one of a fairness algorithm and a throughput algorithm, and wherein different users of the plurality of users having different long-term signal to interference plus noise ratios (SINRs) are calculated with different powers. The apparatus may further comprise a power allocating logic to allocate the power to the each user.

    Abstract translation: 描述了在MU-MIMO通信系统中分配功率的机器可读介质，方法，装置和系统。 在一些实施例中，MU-MIMO通信系统中的基站的装置可以包括：功率计算逻辑，用于基于MU-MIMO系统中的与基站通信的多个用户的每个用户计算功率，基于 平均功率和功率增量。 所述功率计算逻辑还可以包括平均功率逻辑，用于基于所述基站与所述多个用户通信的总功率来计算所述多个用户之间的平均功率;以及功率增量逻辑，用于确定所述多个用户的功率增量 每个用户基于公平算法和吞吐量算法中的至少一个，并且其中具有不同长度信号与干扰加噪声比（SINR）的多个用户中的不同用户以不同的功率被计算。 该装置还可以包括功率分配逻辑以将功率分配给每个用户。

    Quasi-orthogonal space-time block encoder, decoder and methods for space-time encoding and decoding orthogonal frequency division multiplexed signals in a multiple-input multiple-output system
    26.
    发明授权
    Quasi-orthogonal space-time block encoder, decoder and methods for space-time encoding and decoding orthogonal frequency division multiplexed signals in a multiple-input multiple-output system 失效
    准正交空时块编码器，解码器和多输入多输出系统中时空编码和解码正交频分复用信号的方法

    公开(公告)号：US08457231B2

    公开(公告)日：2013-06-04

    申请号：US12447026

    申请日：2006-10-24

    Applicant: Wenwu Zhu ,  May Wu ,  Xiang-Gen Xia

    Inventor： Wenwu Zhu ,  May Wu ,  Xiang-Gen Xia

    IPC: H04L1/02 ,  H04L27/28

    CPC classification number: H04L27/2601 ,  H04B7/0669 ,  H04L1/0643 ,  H04L1/0668

    Abstract: Embodiments of quasi-orthogonal space-time encoder, decoder and method for space-time encoding and decoding orthogonal frequency division multiplexed (OFDM) signals in a multiple-input multiple-output (MDMO) system are generally described herein. Other embodiments may be described and claimed. In some embodiments, a method of decoding received multicarrier signals comprises deriving objective functions from a received signal matrix, minimizing the objective functions to generate decoded hard bits, and solving a set of linear equations of the objective functions to generate decoded soft bits.

    Abstract translation: 在这里通常描述在多输入多输出（MDMO）系统中的准正交时空编码器，解码器和时空编码和解码正交频分复用（OFDM）信号的实施例。 可以描述和要求保护其他实施例。 在一些实施例中，解码所接收的多载波信号的方法包括从接收信号矩阵导出目标函数，使目标函数最小化以产生解码的硬比特，以及求解目标函数的一组线性方程以产生解码的软比特。

    Beam selection in open loop MU-MIMO
    27.
    发明授权
    Beam selection in open loop MU-MIMO 有权
    开环MU-MIMO中的波束选择

    公开(公告)号：US08290539B2

    公开(公告)日：2012-10-16

    申请号：US12057727

    申请日：2008-03-28

    Applicant: Guangjie Li ,  Yang Gao ,  May Wu

    Inventor： Guangjie Li ,  Yang Gao ,  May Wu

    IPC: H04W72/00

    CPC classification number: H04W72/1257 ,  H04L1/0017 ,  H04L1/0026 ,  H04L1/0035 ,  H04W72/1226

    Abstract: A beam selection method in open loop MU-MIMO is disclosed, for an asymmetric antenna configuration. The proposed beam selection method employs limited feedback, as compared with single-user closed-loop MIMO and multiple-user closed-loop MIMO, in which the base station requires channel state information (CSI). The multi-user MIMO beam selection method selects the portion of beams from candidate beams for data transmission, meaning that the base station is training M beams. From this, the subscriber station selects N beams from the total M beams, with N≦M.

    Abstract translation: 公开了开环MU-MIMO中的波束选择方法，用于非对称天线配置。 与单用户闭环MIMO和多用户闭环MIMO相比，所提出的波束选择方法采用有限的反馈，其中基站需要信道状态信息（CSI）。 多用户MIMO波束选择方法选择来自候选波束的波束的部分进行数据传输，这意味着基站正在训练M个波束。 由此，用户站从N个总线M中选择N个波束。

    Open loop MU-MIMO
    29.
    发明授权
    Open loop MU-MIMO 有权
    开环MU-MIMO

    公开(公告)号：US07907677B2

    公开(公告)日：2011-03-15

    申请号：US11864932

    申请日：2007-09-29

    Applicant: Guangjie Li ,  Xiaoxin Wu ,  Zhangyong Ma ,  Yang Gao ,  Feng Zhou ,  May Wu

    Inventor： Guangjie Li ,  Xiaoxin Wu ,  Zhangyong Ma ,  Yang Gao ,  Feng Zhou ,  May Wu

    IPC: H04B7/02

    CPC classification number: H04W72/1257 ,  H04L1/0017 ,  H04L1/0026 ,  H04L1/0035 ,  H04W72/1226

    Abstract: A unified open loop single-user/multiple-user multiple-input-multiple-output (MIMO) system and method are disclosed. The system and method operate without use of channel state information feedback. Instead, the method utilizes channel quality indicator feedback to schedule users to spatial resource blocks. Both symmetric multi-user MIMO schemes (like 2×2 and 4×4) and asymmetric multi-user MIMO schemes are considered. CQI feedback and reduction proposals are also introduced. The method may be used in a proposed network topology.

    Abstract translation: 公开了一种统一的开环单用户/多用户多输入多输出（MIMO）系统和方法。 系统和方法操作而不使用信道状态信息反馈。 相反，该方法利用信道质量指示符反馈来将用户调度到空间资源块。 考虑了对称多用户MIMO方案（如2×2和4×4）和非对称多用户MIMO方案。 还引入了CQI反馈和减少建议。 该方法可以用于所提出的网络拓扑中。

    QUASI-ORTHOGONAL SPACE-TIME BLOCK ENCODER, DECODER AND METHODS FOR SPACE-TIME ENCODING AND DECODING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED SIGNALS IN A MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM
    30.
    发明申请
    QUASI-ORTHOGONAL SPACE-TIME BLOCK ENCODER, DECODER AND METHODS FOR SPACE-TIME ENCODING AND DECODING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED SIGNALS IN A MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM 失效
    正交正交空间编码器，解码器和方法，用于空间编码和解码多路输入多输出系统中的正交频分多址信号

    公开(公告)号：US20100086080A1

    公开(公告)日：2010-04-08

    申请号：US12447026

    申请日：2006-10-24

    Applicant: Wenwu Zhu ,  May Wu ,  Xiang-Gen Xia

    Inventor： Wenwu Zhu ,  May Wu ,  Xiang-Gen Xia

    IPC: H04L27/36 ,  H04L27/00 ,  H04L27/06

    CPC classification number: H04L27/2601 ,  H04B7/0669 ,  H04L1/0643 ,  H04L1/0668

    Abstract: Embodiments of quasi-orthogonal space-time encoder, decoder and method for space-time encoding and decoding orthogonal frequency division multiplexed (OFDM) signals in a multiple-input multiple-output (MDMO) system are generally described herein. Other embodiments may be described and claimed. In some embodiments, a method of decoding received multicarrier signals comprises deriving objective functions from a received signal matrix, minimizing the objective functions to generate decoded hard bits, and solving a set of linear equations of the objective functions to generate decoded soft bits.

    Abstract translation: 在这里通常描述在多输入多输出（MDMO）系统中的准正交时空编码器，解码器和时空编码和解码正交频分复用（OFDM）信号的实施例。 可以描述和要求保护其他实施例。 在一些实施例中，解码所接收的多载波信号的方法包括从接收信号矩阵导出目标函数，使目标函数最小化以产生解码的硬比特，以及求解目标函数的一组线性方程以产生解码的软比特。

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