公开(公告)号：US08432994B2

公开(公告)日：2013-04-30

申请号：US12835654

申请日：2010-07-13

申请人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04B7/02

CPC分类号： H04B7/0667 ,  H04B7/0413 ,  H04B7/0691 ,  H04L27/2607

摘要： The present invention discloses a method for determining an uplink demodulation reference signal (DMRS), which includes: taking one of multiple transmit antennas in the uplink as a base transmit antenna, taking other transmit antennas as subordinating transmit antennas and setting a DMRS for the base transmit antenna; establishing DMRS subordinating relationships between the base transmit antenna and each of the subordinating transmit antennas; and setting a DMRS for each of the subordinating transmit antennas according to the DMRS of the base transmit antenna and the DMRS subordinating relationship between the base transmit antenna and each of the subordinating transmit antennas. The present invention also provides a user equipment (UE) and an uplink system for providing DMRSs for multiple transmit antennas. The method, UE and system are applicable in both SU-MIMO transmission and MU-MIMO transmission.

摘要翻译： 本发明公开了一种确定上行解调参考信号（DMRS）的方法，包括：将上行链路中的多个发射天线中的一个作为基站发射天线，以其他发射天线作为从属发射天线，并设置基带的DMRS 发射天线; 在基站发射天线与每个从属发射天线之间建立DMRS从属关系; 并且根据基站发射天线的DMRS和基站发射天线与每个从属发射天线之间的DMRS从属关系，为每个从属发射天线设置DMRS。 本发明还提供了一种用于为多个发射天线提供DMRS的用户设备（UE）和上行链路系统。 该方法，UE和系统适用于SU-MIMO传输和MU-MIMO传输。

公开(公告)号：US20100246524A1

公开(公告)日：2010-09-30

申请号：US12748236

申请日：2010-03-26

申请人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04W72/12 ,  H04L27/28

CPC分类号： H04B7/024 ,  H04B7/063

摘要： Embodiments of the present invention include a method, system and transmitter for adaptive coordinated transmission in wireless communications. The method includes: determining more than one transmitter for performing coordinated transmission, configuring one of the more than one transmitter to be a serving transmitter with others of the more than one transmitter being cooperating transmitters, and determining more than one receiver; determining, by a cooperating transmitter, a cooperation mode according to measured signal parameters of the more than one receiver after receiving a cooperation request from the serving transmitter, and providing the cooperation mode to the serving transmitter; generating, by each of the more than one transmitter, a transmit signal corresponding to the more than one receiver according to the cooperation mode determined, and transmitting the transmit signal to each of the more than one receiver. The method, system and transmitter of the present invention increase spectrum efficiency for cell edge users as much as possible while having relatively low implementation complexity.

摘要翻译： 本发明的实施例包括用于无线通信中的自适应协调传输的方法，系统和发射机。 该方法包括：确定用于执行协调传输的多于一个发射机，将所述多于一个的发射机中的一个配置为多个发射机，并且确定多于一个的接收机; 在从所述服务发射机接收到合作请求之后，根据所述多于一个接收机的测量信号参数，由协作发射机确定协作模式，并向所述服务发射机提供所述协作模式; 根据所确定的协作模式，生成与所述多于一个发射机相对应的发射信号，并将所述发射信号发送到所述多个接收机中的每一个。 本发明的方法，系统和发射机尽可能地增加小区边缘用户的频谱效率，同时具有较低的实现复杂度。

公开(公告)号：US08583134B2

公开(公告)日：2013-11-12

申请号：US12748236

申请日：2010-03-26

申请人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04W72/00

CPC分类号： H04B7/024 ,  H04B7/063

摘要： A method for adaptive coordinated transmission in wireless communications includes: determining more than one transmitter for performing coordinated transmission, configuring one of the more than one transmitter to be a serving transmitter with others of the more than one transmitter being cooperating transmitters, and determining more than one receiver; determining, by a cooperating transmitter, a cooperation mode according to measured signal parameters of the more than one receiver after receiving a cooperation request from the serving transmitter, and providing the cooperation mode to the serving transmitter; generating, by each of the more than one transmitter, a transmit signal corresponding to the more than one receiver according to the cooperation mode determined, and transmitting the transmit signal to each of the more than one receiver.

摘要翻译： 一种用于无线通信中的自适应协调传输的方法包括：确定多于一个发射机用于执行协调传输，将所述多于一个的发射机中的一个与多个发射机中的其他一个配置发射机配置成为服务发射机，并确定多于 一个接收器; 在从所述服务发射机接收到合作请求之后，根据所述多于一个接收机的测量信号参数，由协作发射机确定协作模式，并向所述服务发射机提供所述协作模式; 根据所确定的协作模式，生成与所述多于一个发射机相对应的发射信号，并将所述发射信号发送到所述多个接收机中的每一个。

公开(公告)号：US20110002412A1

公开(公告)日：2011-01-06

申请号：US12835654

申请日：2010-07-13

申请人： Xiaolin HOU ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Xiaolin HOU ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04B7/02

CPC分类号： H04B7/0667 ,  H04B7/0413 ,  H04B7/0691 ,  H04L27/2607

摘要： The present invention discloses a method for determining an uplink demodulation reference signal (DMRS), which includes: taking one of multiple transmit antennas in the uplink as a base transmit antenna, taking other transmit antennas as subordinating transmit antennas and setting a DMRS for the base transmit antenna; establishing DMRS subordinating relationships between the base transmit antenna and each of the subordinating transmit antennas; and setting a DMRS for each of the subordinating transmit antennas according to the DMRS of the base transmit antenna and the DMRS subordinating relationship between the base transmit antenna and each of the subordinating transmit antennas. The present invention also provides a user equipment (UE) and an uplink system for providing DMRSs for multiple transmit antennas. The method, UE and system are applicable in both SU-MIMO transmission and MU-MIMO transmission.

摘要翻译： 本发明公开了一种确定上行解调参考信号（DMRS）的方法，包括：将上行链路中的多个发射天线中的一个作为基站发射天线，以其他发射天线作为从属发射天线，并设置基带的DMRS 发射天线; 在基站发射天线与每个从属发射天线之间建立DMRS从属关系; 并且根据基站发射天线的DMRS和基站发射天线与每个从属发射天线之间的DMRS从属关系，为每个从属发射天线设置DMRS。 本发明还提供了一种用于为多个发射天线提供DMRS的用户设备（UE）和上行链路系统。 该方法，UE和系统适用于SU-MIMO传输和MU-MIMO传输。

公开(公告)号：US20070291640A1

公开(公告)日：2007-12-20

申请号：US11648349

申请日：2006-12-28

申请人： Zhan Zhang ,  Hidetoshi Kayama

发明人： Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04J11/00

CPC分类号： H04L5/006 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0025 ,  H04L5/0044

摘要： Embodiments of the present invention include a system and method of dynamic space-frequency-division multiple-access for the uplink from terminals to a base-station. The system includes a base-station and multiple terminals. According to different spatial mapping modes, the base-station performs an optimization computation using an optimization function in order to obtain control information for controlling terminals; after receiving the control information, the user terminal controls the transmitting mode using this control information. The method includes the following operations: at the base-station, performing an optimization computation using an optimization function according to different spatial mapping modes respectively, in order to obtain control information for controlling terminals; at the user terminal, controlling a transmitting mode using the control information after receiving the above control information. An embodiment of the present invention can achieve a higher system capacity by balancing resource allocation among different users in a domain of transmission power, bandwidth and spatial channels.

摘要翻译： 本发明的实施例包括从终端到基站的上行链路的动态空分多址的系统和方法。 该系统包括一个基站和多个终端。 根据不同的空间映射模式，基站使用优化函数进行优化计算，以获得控制终端的控制信息; 在接收到控制信息之后，用户终端使用该控制信息来控制发送模式。 该方法包括以下操作：在基站，分别根据不同的空间映射模式，使用优化函数进行优化计算，以获得控制终端的控制信息; 在用户终端，在接收到上述控制信息之后，使用控制信息控制发送模式。 本发明的实施例可以通过平衡发射功率，带宽和空间信道的不同用户之间的资源分配来实现更高的系统容量。

公开(公告)号：US20070206699A1

公开(公告)日：2007-09-06

申请号：US11713230

申请日：2007-03-01

申请人： Chunlin Yan ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Chunlin Yan ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04L1/02

CPC分类号： H04L1/0009 ,  H04L1/0003 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/0637

摘要： Embodiments of the present invention provides an adaptive space-time coding and modulation method and a transmitter. In one embodiment, the method includes: obtaining a curve corresponding to a modulation mode, a channel coding rate, a coding mode of a space-time code, a parameter indicating signal transmission quality and SNR by simulating or measuring at transmit-side and making a table with correspondences between the SNR, the modulation mode and the coding mode of the space-time code according to a SNR range corresponding to a predefined signal transmission quality. Higher frequency spectrum efficiency can be achieved with the quality of service guaranteed.

摘要翻译： 本发明的实施例提供一种自适应时空编码和调制方法以及发射机。 在一个实施例中，该方法包括：通过在发送侧进行模拟或测量，获得对应于调制模式，信道编码率，空时码的编码模式，指示信号传输质量和SNR的参数的曲线， 根据与预定义的信号传输质量相对应的SNR范围的空时码的SNR，调制模式和编码模式之间的对应关系的表。 随着服务质量的保证，可以实现更高的频谱效率。

公开(公告)号：US07729666B2

公开(公告)日：2010-06-01

申请号：US11648349

申请日：2006-12-28

申请人： Zhan Zhang ,  Hidetoshi Kayama

发明人： Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04W24/00

CPC分类号： H04L5/006 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0025 ,  H04L5/0044

摘要： Embodiments of the present invention include a system and method of dynamic space-frequency-division multiple-access for the uplink from terminals to a base-station. The system includes a base-station and multiple terminals. According to different spatial mapping modes, the base-station performs an optimization computation using an optimization function in order to obtain control information for controlling terminals; after receiving the control information, the user terminal controls the transmitting mode using this control information. The method includes the following operations: at the base-station, performing an optimization computation using an optimization function according to different spatial mapping modes respectively, in order to obtain control information for controlling terminals; at the user terminal, controlling a transmitting mode using the control information after receiving the above control information. An embodiment of the present invention can achieve a higher system capacity by balancing resource allocation among different users in a domain of transmission power, bandwidth and spatial channels.

摘要翻译： 本发明的实施例包括从终端到基站的上行链路的动态空分多址的系统和方法。 该系统包括一个基站和多个终端。 根据不同的空间映射模式，基站使用优化函数进行优化计算，以获得控制终端的控制信息; 在接收到控制信息之后，用户终端使用该控制信息来控制发送模式。 该方法包括以下操作：在基站，分别根据不同的空间映射模式，使用优化函数进行优化计算，以获得控制终端的控制信息; 在用户终端，在接收到上述控制信息之后，使用控制信息控制发送模式。 本发明的实施例可以通过平衡发射功率，带宽和空间信道的不同用户之间的资源分配来实现更高的系统容量。

公开(公告)号：US09504031B2

公开(公告)日：2016-11-22

申请号：US14417495

申请日：2012-08-02

申请人： Jinhua Liu ,  Zhan Zhang

发明人： Jinhua Liu ,  Zhan Zhang

IPC分类号： H04B7/212 ,  H04W4/00 ,  H04W72/04 ,  H04W28/16 ,  H04L5/00 ,  H04W72/08

CPC分类号： H04W72/044 ,  H04L5/0035 ,  H04W28/16 ,  H04W72/042 ,  H04W72/0486 ,  H04W72/085

摘要： The embodiments relate to a method and a controlling unit for resource allocation and joint transmission in a cellular communication network. The method includes allocating a first set of frequency resources for transmitting a first set of time slots of data in a subframe, from a first communication node to a User Equipment, UE, and allocating at least one second set of frequency resources for transmitting, at least one second set of time slots of data in the subframe, from at least one second communication node respectively to the UE. The first set of frequency resources is intersected with one of the at least one second set of frequency resources, and union of the first set of time slots of data and the at least one second set of time slots of data is equal to the subframe.

摘要翻译： 实施例涉及用于蜂窝通信网络中的资源分配和联合传输的方法和控制单元。 该方法包括：分配第一组频率资源，用于在子帧中从第一通信节点向用户设备UE发送数据的第一组时隙，以及分配至少一个第二组频率资源，用于在 至少一个第二组子帧中的数据的时隙集合，分别从至少一个第二通信节点到UE。 第一组频率资源与至少一个第二组频率资源中的一个相交，并且数据的第一组时隙与数据的至少一个第二组时隙的并集等于该子帧。

公开(公告)号：US20130120191A1

公开(公告)日：2013-05-16

申请号：US13383009

申请日：2011-11-11

申请人： Zhan Zhang ,  Yu Qian ,  Xinghua Song ,  Sven Petersson

发明人： Zhan Zhang ,  Yu Qian ,  Xinghua Song ,  Sven Petersson

IPC分类号： H01Q3/44 ,  H04W88/08

CPC分类号： H01Q3/26 ,  H01Q21/26 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0473 ,  H04B7/0482 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0695 ,  H04B7/0842 ,  H04B7/086 ,  H04B7/088 ,  H04W16/28

摘要： A method (40) of antenna array dynamic configuration for 3-Dimension beamforming in wireless network is provided, comprising: determining (41) dynamically a mapping pattern for transforming a physical antenna array into a virtual antenna array based on time-varying downlink or uplink baseband channel statistics, from a set of candidate mapping patterns; and configuring (42) the physical antenna array as different virtual antenna arrays according to the dynamically determined mapping pattern. The corresponding apparatus, antenna array and wireless base station system are also provided. These are used to improve radio transmission bandwidth communication efficiency.

摘要翻译： 提供了一种用于无线网络中的三维波束形成的天线阵列动态配置的方法（40），包括：动态地确定（41）基于时变下行链路或上行链路将物理天线阵列变换成虚拟天线阵列的映射模式 基带信道统计，从一组候选映射模式; 以及根据动态确定的映射模式将物理天线阵列配置（42）为不同的虚拟天线阵列。 还提供了相应的装置，天线阵列和无线基站系统。 这些用于提高无线电传输带宽的通信效率。

公开(公告)号：US08259749B2

公开(公告)日：2012-09-04

申请号：US12632594

申请日：2009-12-07

申请人： Jiang Li ,  Zhan Zhang ,  Ning Wu

发明人： Jiang Li ,  Zhan Zhang ,  Ning Wu

IPC分类号： H04J15/00

CPC分类号： H04J3/0688 ,  H04J3/0691 ,  H04J3/0697

摘要： A system and a method of time information synchronization as well as related apparatuses are disclosed to improve precision of frequency synchronization or time synchronization. The application port subsystem in the information synchronization system is configured to: generate at least one local clock according to a locally running real-time clock, and provide the local clock for a core subsystem; and the core subsystem is configured to: select a best system clock according to attributes of the clock provided by the application port subsystem, and send the best system clock to the application port subsystem, where: the application port subsystem calibrates the real-time clock according to the best system clock provided by the core subsystem in order to perform frequency synchronization and/or time synchronization. The embodiments of the present invention improve the precision of frequency synchronization or time synchronization effectively.

摘要翻译： 公开了时间信息同步的系统和方法以及相关装置，以提高频率同步或时间同步的精度。 信息同步系统中的应用端口子系统被配置为：根据本地运行的实时时钟生成至少一个本地时钟，并为核心子系统提供本地时钟; 核心子系统配置为：根据应用端口子系统提供的时钟属性选择最佳系统时钟，并将最佳系统时钟发送到应用端口子系统，其中应用端口子系统校准实时时钟 根据核心子系统提供的最佳系统时钟，以执行频率同步和/或时间同步。 本发明的实施例有效地提高了频率同步或时间同步的精度。