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1. 发明申请

US20090041148A1 OPEN LOOP MU-MIMO 有权
标题翻译：开环MU-MIMO
公开(公告)号：US20090041148A1
公开(公告)日：2009-02-12
申请号：US11864932
申请日：2007-09-29
申请人： GUANGJIE LI , Xiaoxin Wu , Zhangyong Ma , Yang Gao , Feng Zhou , May Wu
发明人： GUANGJIE LI , Xiaoxin Wu , Zhangyong Ma , Yang Gao , Feng Zhou , May Wu
IPC分类号： H04L1/02
CPC分类号： H04W72/1257 , H04L1/0017 , H04L1/0026 , H04L1/0035 , H04W72/1226
摘要： 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.
摘要翻译：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2x2和4x4）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。

2. 发明授权

US07907677B2 Open loop MU-MIMO 有权
标题翻译：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
申请人： Guangjie Li , Xiaoxin Wu , Zhangyong Ma , Yang Gao , Feng Zhou , May Wu
发明人： Guangjie Li , Xiaoxin Wu , Zhangyong Ma , Yang Gao , Feng Zhou , May Wu
IPC分类号： H04B7/02
CPC分类号： H04W72/1257 , H04L1/0017 , H04L1/0026 , H04L1/0035 , H04W72/1226
摘要： 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.
摘要翻译：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。

3. 发明授权

US08315643B2 Efficient CQICH transport format 有权
标题翻译：高效的CQICH传输格式
公开(公告)号：US08315643B2
公开(公告)日：2012-11-20
申请号：US12057678
申请日：2008-03-28
申请人： Guangjie Li , Xiaoxin Wu , Zhangyong Ma , Yang Gao , May Wu
发明人： Guangjie Li , Xiaoxin Wu , Zhangyong Ma , Yang Gao , May Wu
IPC分类号： H04W72/00
CPC分类号： H04W72/1257 , H04L1/0017 , H04L1/0026 , H04L1/0035 , H04W72/1226
摘要： An efficient channel quality indicator channel (CQICH) transport method and system are disclosed. The CQICH transport method defines five types of CQI transport formats, to cover known cases of CQI feedback. The CQICH transport method further defines the format of transportation, which enables any of the five types of CQI transport formats to be transmitted.
摘要翻译：公开了一种高效的信道质量指示信道（CQICH）传输方法和系统。 CQICH传输方法定义了CQI传输格式的五种类型，以覆盖CQI反馈的已知情况。 CQICH传输方法进一步定义了传输格式，可以传输五种类型的CQI传输格式中的任何一种。

4. 发明申请

US20090041138A1 EFFICIENT CQICH TRANSPORT FORMAT 有权
标题翻译：高效的运输格式
公开(公告)号：US20090041138A1
公开(公告)日：2009-02-12
申请号：US12057678
申请日：2008-03-28
申请人： Guangjie Li , Xiaoxin Wu , Zhangyong Ma , Yang Gao , May Wu
发明人： Guangjie Li , Xiaoxin Wu , Zhangyong Ma , Yang Gao , May Wu
IPC分类号： H04L27/28
CPC分类号： H04W72/1257 , H04L1/0017 , H04L1/0026 , H04L1/0035 , H04W72/1226
摘要： An efficient channel quality indicator channel (CQICH) transport method and system are disclosed. The CQICH transport method defines five types of CQI transport formats, to cover known cases of CQI feedback. The CQICH transport method further defines the format of transportation, which enables any of the five types of CQI transport formats to be transmitted.
摘要翻译：公开了一种高效的信道质量指示信道（CQICH）传输方法和系统。 CQICH传输方法定义了CQI传输格式的五种类型，以覆盖CQI反馈的已知情况。 CQICH传输方法进一步定义了传输格式，可以传输五种类型的CQI传输格式中的任何一种。

5. 发明申请

US20090047987A1 METHOD AND APPARATUS FOR ALLOCATING POWER IN A MU-MIMO COMMUNICATION SYSTEM 失效
标题翻译：在MU-MIMO通信系统中分配功率的方法和装置
公开(公告)号：US20090047987A1
公开(公告)日：2009-02-19
申请号：US12057194
申请日：2008-03-27
申请人： Guangjie Li , Yang Gao , May Wu
发明人： Guangjie Li , Yang Gao , May Wu
IPC分类号： H04B7/00 , H04K1/10
CPC分类号： H04W52/267 , H04W52/143 , H04W52/225 , H04W52/241 , H04W52/265 , H04W72/1226 , H04W72/1257
摘要： 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.
摘要翻译：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。功率计算逻辑还可以包括平均功率逻辑，用于基于用于基站与多个用户通信的总功率来计算多个用户之间的平均功率;以及功率递增逻辑，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。

6. 发明申请

US20090042617A1 BEAM SELECTION IN OPEN LOOP MU-MIMO 有权
标题翻译：开环MU-MIMO中的波束选择
公开(公告)号：US20090042617A1
公开(公告)日：2009-02-12
申请号：US12057727
申请日：2008-03-28
申请人： GUANGJIE LI , Yang Gao , May Wu
发明人： GUANGJIE LI , Yang Gao , May Wu
IPC分类号： H04M1/00 , H04B17/00
CPC分类号： H04W72/1257 , H04L1/0017 , H04L1/0026 , H04L1/0035 , H04W72/1226
摘要： 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.
摘要翻译：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个总和M个波束中选择N个波束。

7. 发明授权

US08078212B2 Method and apparatus for allocating power in a MU-MIMO communication system 失效
标题翻译：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
申请人： Guangjie Li , Yang Gao , May Wu
发明人： Guangjie Li , Yang Gao , May Wu
IPC分类号： H04B7/00
CPC分类号： H04W52/267 , H04W52/143 , H04W52/225 , H04W52/241 , H04W52/265 , H04W72/1226 , H04W72/1257
摘要： 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.
摘要翻译：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。

8. 发明授权

US08290539B2 Beam selection in open loop MU-MIMO 有权
标题翻译：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
申请人： Guangjie Li , Yang Gao , May Wu
发明人： Guangjie Li , Yang Gao , May Wu
IPC分类号： H04W72/00
CPC分类号： H04W72/1257 , H04L1/0017 , H04L1/0026 , H04L1/0035 , H04W72/1226
摘要： 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.
摘要翻译：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。

9. 发明授权

US09008207B2 Uplink noise estimation for virtual MIMO 有权
标题翻译：用于虚拟MIMO的上行链路噪声估计
公开(公告)号：US09008207B2
公开(公告)日：2015-04-14
申请号：US13878708
申请日：2010-10-11
申请人： Peng Cheng , Changlong Xu , Xuebin Yang , Feng Zhou , Yang Gao
发明人： Peng Cheng , Changlong Xu , Xuebin Yang , Feng Zhou , Yang Gao
IPC分类号： H04B7/02 , H04L25/03 , H04B17/00 , H04B7/04
CPC分类号： H04L25/03197 , H04B7/024 , H04B7/0413 , H04B7/0452 , H04B17/345
摘要： A system and methods for estimating a noise power level in an uplink signal for a virtual MIMO system is disclosed. The system comprises a demodulation reference signal (DMRS) module configured to obtain a DMRS receive symbol from the uplink signal and determine a DMRS sequence for a first UE in the virtual MIMO system. An autocorrelation module is configured to calculate an average autocorrelation value for the subcarriers in the uplink signal. A cross-correlation module is configured to calculate first and second cross-correlation values of the uplink signal RZ(l) for values of l selected such that the sum of the received power from the first UE and the second UE can be accurately estimated. A noise power level module is configured to determine the noise power level for the uplink signal using the average autocorrelation value and the first and second cross correlation values.
摘要翻译：公开了一种用于估计虚拟MIMO系统的上行链路信号中的噪声功率电平的系统和方法。该系统包括解调参考信号（DMRS）模块，其被配置为从上行链路信号获得DMRS接收符号，并确定虚拟MIMO系统中的第一UE的DMRS序列。自相关模块被配置为计算上行链路信号中的子载波的平均自相关值。互相关模块被配置为针对所选择的l的值计算上行链路信号RZ（1）的第一和第二互相关值，使得可以准确地估计来自第一UE和第二UE的接收功率之和。噪声功率电平模块被配置为使用平均自相关值和第一和第二互相关值来确定上行链路信号的噪声功率电平。

10. 发明申请

US20140064391A1 UPLINK NOISE ESTIMATION FOR VIRTUAL MIMO 有权
标题翻译：虚拟MIMO的上行噪声估计
公开(公告)号：US20140064391A1
公开(公告)日：2014-03-06
申请号：US13878708
申请日：2010-10-11
申请人： Peng Cheng , Changlong Xu , Xuebin Yang , Feng Zhou , Yang Gao
发明人： Peng Cheng , Changlong Xu , Xuebin Yang , Feng Zhou , Yang Gao
IPC分类号： H04L25/03
CPC分类号： H04L25/03197 , H04B7/024 , H04B7/0413 , H04B7/0452 , H04B17/345
摘要： A system and methods for estimating a noise power level in an uplink signal for a virtual MIMO system is disclosed. The system comprises a demodulation reference signal (DMRS) module configured to obtain a DMRS receive symbol from the uplink signal and determine a DMRS sequence for a first UE in the virtual MIMO system. An autocorrelation module is configured to calculate an average autocorrelation value for the subcarriers in the uplink signal. A cross-correlation module is configured to calculate first and second cross-correlation values of the uplink signal Rz (l) for values of l selected such that the sum of the received power from the first UE and the second UE can be accurately estimated. A noise power level module is configured to determine the noise power level for the uplink signal using the average autocorrelation value and the first and second cross correlation values.
摘要翻译：公开了一种用于估计虚拟MIMO系统的上行链路信号中的噪声功率电平的系统和方法。该系统包括解调参考信号（DMRS）模块，其被配置为从上行链路信号获得DMRS接收符号，并确定虚拟MIMO系统中的第一UE的DMRS序列。自相关模块被配置为计算上行链路信号中的子载波的平均自相关值。互相关模块被配置为针对所选择的l的值计算上行链路信号Rz（1）的第一和第二互相关值，使得可以准确地估计来自第一UE和第二UE的接收功率之和。噪声功率电平模块被配置为使用平均自相关值和第一和第二互相关值来确定上行链路信号的噪声功率电平。

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