公开(公告)号：US10548113B2

公开(公告)日：2020-01-28

申请号：US13806034

申请日：2011-04-04

申请人： Ming Ding ,  Renmao Liu ,  Yingyu Zhang ,  Yongming Liang ,  Zeng Yang

发明人： Ming Ding ,  Renmao Liu ,  Yingyu Zhang ,  Yongming Liang ,  Zeng Yang

IPC分类号： H04W72/04 ,  H04B7/06

摘要： A method of resource allocation for Channel State Information (CSI) feedback is provided, which comprises the following steps of: configuring a downlink transmission approach and a feedback mode for each User Equipment (UE); allocating feedback resources required for CSI feedback by each UE based on the configured downlink transmission approach and feedback mode, such that different types underlying different feedback modes for a single UE will not collide with each other within one sub-frame; and notifying each UE of the corresponding configured downlink transmission approach and feedback mode and allocated feedback resources. Further, a method of Channel State Information (CSI) feedback is provided, which comprises the following steps of: feeding downlink CSI back to a base station (BS) based on a downlink transmission approach and a feedback mode configured by the BS; and solving, when different types underlying different feedback modes collide with each other within one sub-frame, the collision based on a collision solution rule.

公开(公告)号：US20110034198A1

公开(公告)日：2011-02-10

申请号：US12989030

申请日：2009-04-24

申请人： Chen Chen ,  Renmao Liu ,  Yongming Liang ,  Ming Ding ,  Lei Huang

发明人： Chen Chen ,  Renmao Liu ,  Yongming Liang ,  Ming Ding ,  Lei Huang

IPC分类号： H04B7/00 ,  H04B17/00

CPC分类号： H04L5/0037 ,  H04L1/0029 ,  H04L5/0094 ,  H04L25/0202

摘要： The present invention provides a subband determining method, a base station, user equipment, and a communications system, each of which is used for information feedback. The base station of the present invention finds the subband size on the basis of a system bandwidth and divides the system bandwidth into subbands. The base station further (i) selects some subbands to form a subband set and assign the subband set to user equipment (UE) and (ii) notifies the user equipment (UE) of information about the subband set. The user equipment (UE) in turn finds its corresponding subband size and the number of subbands for use in feedback on the basis of the size of the assigned subband set. The user equipment (UE) further (i) divides the subband set into its corresponding subbands on the basis of a result found and (ii) feeds back information about a predetermined number of subbands to the base station. The base station carries out optimization of its transmitter on the basis of the information, fed back from the user equipment (UE), so as to not only secure a quality of service of a wireless cell, but also improve system efficiency. This method allows feedback to be carried out for downlink information with ease and high efficiency. This in turn reduces load for uplink wireless transmissions and improves feedback precision so as to save wireless resources and improve system efficiency.

摘要翻译： 本发明提供一种子带确定方法，基站，用户设备和通信系统，每个都用于信息反馈。 本发明的基站根据系统带宽求出子带大小，将系统带宽划分为子带。 基站进一步（i）选择一些子带以形成子带集，并将子带集分配给用户设备（UE），并且（ii）向用户设备（UE）通知关于子带集的信息。 用户设备（UE）又根据所分配的子带集的大小来找到其对应的子带大小和用于反馈的子带的数量。 用户设备（UE）还基于所找到的结果将子带集划分成其对应的子带，并且（ii）将关于预定数量的子带的信息反馈到基站。 基站根据从用户设备（UE）反馈的信息进行发射机的优化，不仅可以保证无线小区的服务质量，而且可以提高系统效率。 该方法能够容易且高效率地进行下行信息的反馈。 这又减少了上行链路无线传输的负担，并提高了反馈精度，从而节省了无线资源，提高了系统效率。

公开(公告)号：US20110013582A1

公开(公告)日：2011-01-20

申请号：US12933369

申请日：2009-03-19

申请人： Ming Ding ,  Renmao Liu ,  Yongming Liang ,  Chen Chen ,  Lei Huang

发明人： Ming Ding ,  Renmao Liu ,  Yongming Liang ,  Chen Chen ,  Lei Huang

IPC分类号： H04W72/00

CPC分类号： H04W72/0426 ,  H04B17/345 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/0062 ,  H04W28/06 ,  H04W72/082 ,  H04W92/20

摘要： The present invention provides an interference-overload-indicator generating device, a method of generating an interference overload indicator, an interference-overload-indicator generation controller, a method of controlling interference-overload-indicator generation, and a method of indicating interference overload, and a base station utilizing these methods, each of which is used in an uplink FDMA cellular communication system. The base station includes an interference-overload-indicator generation control sub-system (1000), an interference-overload-indicator generation sub-system (2000), and a transmitting/receiving sub-system (3000). The interference-overload-indicator generation control sub-system (1000) judges whether or not a condition to initiate interference indicator generation is satisfied, and activates the interference-overload-indicator generation sub-system (2000) only when the condition is satisfied. This makes it possible to reduce a signaling size of the interference indicator. For further reducing the signaling size, an interference indicator signaling is generated by a method such as differential coding, state coding, or a bitmap, and transmitted. According to the present invention, an interference overload indicator generation control mechanism is relatively simple and the signaling size of the interference indicator is small.

摘要翻译： 本发明提供了一种干扰过载指示符生成装置，产生干扰过载指示符的方法，干扰过载指示符生成控制器，控制干扰过载指示符生成的方法以及指示干扰过载的方法， 以及利用这些方法的基站，其中每一个在上行链路FDMA蜂窝通信系统中使用。 基站包括干扰过载指示符生成控制子系统（1000），干扰过载指示符生成子系统（2000）和发送/接收子系统（3000）。 干扰过载指示符生成控制子系统（1000）判断是否满足启动干扰指标生成的条件，仅在条件满足时激活干扰过载指示符生成子系统（2000）。 这使得可以减少干扰指示符的信令大小。 为了进一步减小信令大小，通过诸如差分编码，状态编码或位图的方法产生干扰指示符信号，并发送。 根据本发明，干扰过载指示符生成控制机制相对简单，干扰指示符的信令大小小。

公开(公告)号：US08989293B2

公开(公告)日：2015-03-24

申请号：US13698372

申请日：2011-09-01

申请人： Ming Ding ,  Renmao Liu ,  Zeng Yang ,  Yongming Liang ,  Yingyu Zhang

发明人： Ming Ding ,  Renmao Liu ,  Zeng Yang ,  Yongming Liang ,  Yingyu Zhang

IPC分类号： H04B7/02 ,  H04B7/04 ,  H04L25/03

CPC分类号： H04B7/0486 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/0658 ,  H04L1/0029 ,  H04L1/0073 ,  H04L25/03898 ,  H04W72/0413

摘要： The present invention provides a method and a coder for jointly coding Pre-coding Matrix Index #1 (W1) and Rank Index (RI) for channel state information feedback of a double codebook precoding frame. In the present invention, it is determined whether Rank Index RI is more than 2; if the RI is no more than 2, a first half branch of a coding binary tree is used to represent joint coding of the RI and W1 when RI=1 and RI=2; if the RI is more than 2, a second half branch of the coding binary tree is used to represent remaining separate codings and/or joint codings when the RI is more than 2; and processing results of the above coding steps are output. The present invention may be applied to an equal-length coding or an unequal-length coding. The present invention has advantages such as easy implementation, lower signaling overhead etc., and may be suitable for an LTE-A/4G cellular communication system and a future 5G cellular communication system.

摘要翻译： 本发明提供一种用于对双码本预编码帧的信道状态信息反馈共同编码预编码矩阵索引＃1（W1）和秩索引（RI）的方法和编码器。 在本发明中，确定秩索引RI是否大于2; 如果RI不超过2，当RI = 1和RI = 2时，编码二叉树的前半分支用于表示RI和W1的联合编码; 如果RI大于2，则当RI大于2时，编码二叉树的第二半分支用于表示剩余的单独编码和/或联合编码; 并输出上述编码步骤的处理结果。 本发明可应用于等长编码或不等长编码。 本发明具有易于实现，较低的信令开销等优点，并且可适用于LTE-A / 4G蜂窝通信系统和未来的5G蜂窝通信系统。

公开(公告)号：US08665797B2

公开(公告)日：2014-03-04

申请号：US13497542

申请日：2010-07-15

申请人： Ming Ding ,  Renmao Liu ,  Yongming Liang ,  Yingyu Zhang ,  Zeng Yang

发明人： Ming Ding ,  Renmao Liu ,  Yongming Liang ,  Yingyu Zhang ,  Zeng Yang

IPC分类号： H04Q7/00 ,  H04H20/67

CPC分类号： H04L25/0204 ,  H04B7/024 ,  H04B7/0626 ,  H04B7/063 ,  H04L5/0023 ,  H04L5/0035 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03808

摘要： The present invention discloses an information feedback method. The method comprises steps of a serving cell and/or a user equipment determining a cooperating cell set participating multi-antenna-multi-cell cooperation, the cooperating cell set including the serving cell and non-serving cells, the user equipment and/or the serving cell selecting transmit-ports of the serving cell and non-serving cells according to the determined cooperating cell set, the user equipment obtaining channel state information of the selected transmit-ports, and the user equipment feeding back identification information and the channel state information of the selected transmit-ports. The present invention provides also a serving cell, a cooperative cell and a user equipment for feeding back the identification information and channel state information of the selected transmit-ports. The present invention has advantages of simple implementation and less signaling overhead.

摘要翻译： 本发明公开了信息反馈方法。 该方法包括服务小区和/或用户设备确定参与多天线多小区协作的协作小区集合的步骤，所述协作小区组包括服务小区和非服务小区，用户设备和/ 根据所确定的协作小区集服务小区选择服务小区和非服务小区的发送端口，用户设备获取所选择的发送端口的信道状态信息，以及用户设备反馈识别信息和信道状态信息 的选择的发送端口。 本发明还提供一种服务小区，协作小区和用于反馈所选择的发送端口的标识信息和信道状态信息的用户设备。 本发明具有简单实现和较少信令开销的优点。

公开(公告)号：US08442568B2

公开(公告)日：2013-05-14

申请号：US12989030

申请日：2009-04-24

申请人： Chen Chen ,  Renmao Liu ,  Yongming Liang ,  Ming Ding ,  Lei Huang

发明人： Chen Chen ,  Renmao Liu ,  Yongming Liang ,  Ming Ding ,  Lei Huang

IPC分类号： H04Q7/20

CPC分类号： H04L5/0037 ,  H04L1/0029 ,  H04L5/0094 ,  H04L25/0202

摘要： A subband determining method, a base station, user equipment, and a communications system are provided. The base station of the present invention finds the subband size on the basis of a system bandwidth and divides the system bandwidth into subbands. The base station further selects some subbands to form a subband set and assign the subband set to user equipment and notifies the user equipment of information about the subband set. The user equipment in turn finds its corresponding subband size and the number of subbands for use in feedback on the basis of the size of the assigned subband set. The user equipment further divides the subband set into its corresponding subbands on the basis of a result found and feeds back information about a predetermined number of subbands to the base station. The base station carries out optimization of its transmitter on the basis of the information.

摘要翻译： 提供了子带确定方法，基站，用户设备和通信系统。 本发明的基站根据系统带宽求出子带大小，将系统带宽划分为子带。 基站进一步选择一些子带以形成子带集，并将子带集分配给用户设备，并向用户设备通知关于子带集的信息。 用户设备又根据所分配的子带集的大小来找到其对应的子带大小和用于反馈的子带的数量。 用户设备根据找到的结果进一步将子带组划分成其对应的子带，并将关于预定数量的子带的信息反馈给基站。 基站根据信息对发射机进行优化。

公开(公告)号：US20110218016A1

公开(公告)日：2011-09-08

申请号：US13119998

申请日：2009-09-17

申请人： Isao Hirakawa ,  Yongming Liang ,  Waho Oh

发明人： Isao Hirakawa ,  Yongming Liang ,  Waho Oh

IPC分类号： H04W64/00

CPC分类号： H04B7/024 ,  H04B7/0617 ,  H04B7/0634 ,  H04W36/18

摘要： The present invention is to enable reduction of constraint brought by generation of ID codes of reference signals to be used for cooperative reception and the allocation of the reference signals when radio communication is carried out between a plurality of base station apparatuses and a terminal unit.Terminal units UE201 to UE205 are terminal units existing in the cellular zone of a base station apparatus BS200 and are performing communication with base station apparatus UE200. When terminal unit UE201 is located at the edge of cell and its reception characteristic degrades, another base station apparatus, specifically, base station apparatus BS100 also performs cooperative transmission while terminal unit UE201 performs cooperative reception. In this case, in order to demodulate the signal from base station apparatus BS100, an ID code of a reference signal that is different from the reference signal the terminal unit uses to demodulate the signal from a solo base station apparatus is used as the ID code of the reference signal that is transmitted from base station apparatus BS100 and specific to the terminal unit.

摘要翻译： 本发明是为了能够减少在多个基站装置与终端装置之间进行无线通信时，通过生成用于协作接收的参照信号的ID代码和参照信号的分配而产生的约束。 终端单元UE201〜UE205是存在于基站装置BS200的蜂窝区域中的终端单元，并且正在与基站装置UE200进行通信。 当终端单元UE201位于小区的边缘并且其接收特性劣化时，另一个基站装置，具体地，基站装置BS100，在终端单元UE201进行协作接收的同时也进行协作发送。 在这种情况下，为了解调来自基站装置BS100的信号，使用与终端单元用于解调来自独立基站装置的信号的参考信号不同的参考信号的ID码作为ID代码 从基站装置BS100发送的基站信号和特定于终端装置的基准信号。

公开(公告)号：US20110007643A1

公开(公告)日：2011-01-13

申请号：US12670196

申请日：2008-07-23

申请人： Yongming Liang ,  Renmao Liu ,  Chongguang Yan ,  Ming Ding

发明人： Yongming Liang ,  Renmao Liu ,  Chongguang Yan ,  Ming Ding

IPC分类号： H04L12/26

CPC分类号： H04W72/1231 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0053 ,  H04L5/0057

摘要： A method for adaptively deciding number of feedback resource blocks in a downlink which comprises that a base station (500) determines a mode corresponding to the number of the feedback resource blocks which a user equipment feeds back by monitoring performance of a wireless cell and number of the user equipments (100) and transmits the mode to the user equipments (100) through signaling; the user equipments (100) listens to the mode and adaptively decides the number of feedback resource blocks by conditions of itself and feeds back downlink channel quality indicator information to the base station (500) according to Best channel quality indicator number or Threshold based feedback algorithm; and the base station (500) performs resource scheduling according to the feedback information. The present invention provides a method for adaptively deciding the number of feedback resource blocks based on base station signaling and user equipment decision, with respect to Best channel quality indicator number or Threshold based feedback algorithm in downlinks, thus insuring the performance of the wireless cell.

摘要翻译： 一种用于自适应地确定下行链路中的反馈资源块数量的方法，其包括基站（500）通过监视无线小区的性能来确定与用户设备反馈的反馈资源块的数量相对应的模式， 用户设备（100）通过信令向用户设备（100）发送模式; 用户设备（100）收听模式，并通过自身的条件自适应地决定反馈资源块的数量，并根据最佳信道质量指示符号或基于阈值的反馈算法将下行链路信道质量指示符信息反馈给基站（500） ; 并且基站（500）根据反馈信息进行资源调度。 本发明提供了一种用于根据基站信令和用户设备决策自适应地决定反馈资源块的数量的方法，关于下行链路中的最佳信道质量指示符号或基于阈值的反馈算法，从而确保无线小区的性能。

公开(公告)号：US20100284351A1

公开(公告)日：2010-11-11

申请号：US12677491

申请日：2008-08-25

申请人： Yongming Liang ,  Renmao Liu ,  Chongguang Yan ,  Ming Ding

发明人： Yongming Liang ,  Renmao Liu ,  Chongguang Yan ,  Ming Ding

IPC分类号： H04W72/04 ,  H04L27/28

CPC分类号： H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639

摘要： A space-time-frequency domain based information feedback method, system, user equipment and base station for wireless transmission technical fields is provided. The user equipment measures and evaluates quality of wireless transmission downlinks in MIMO system, obtains rank, precoding matrix index and channel quality indicator information in the wireless transmission downlinks, processes information of the wireless transmission downlink respectively in space domain, frequency domain and time domain by using space selectivity, frequency selectivity and time selectivity characteristics of a channel, and feeds back downlink information to the base station through uplinks by using feedback schemes. The base station optimizes a transmitter according to feedback information from the user equipment.

摘要翻译： 提供了基于空时频域的信息反馈方法，系统，用户设备和无线传输技术领域的基站。 用户设备测量和评估MIMO系统中无线传输下行链路的质量，在无线传输下行链路中获得等级，预编码矩阵索引和信道质量指标信息，分别在空域，频域和时域中分别处理无线传输下行链路的信息， 使用信道的空间选择性，频率选择性和时间选择性特性，并且通过使用反馈方案将下行链路信息反馈到基站。 基站根据用户设备的反馈信息优化发射机。

公开(公告)号：US20120281657A1

公开(公告)日：2012-11-08

申请号：US13520994

申请日：2011-01-07

申请人： Ming Ding ,  Renmao Liu ,  Yongming Liang ,  Yingyu Zhang ,  Zeng Yang

发明人： Ming Ding ,  Renmao Liu ,  Yongming Liang ,  Yingyu Zhang ,  Zeng Yang

IPC分类号： H04B15/00 ,  H04W72/04

CPC分类号： H04W72/0426 ,  H04L1/06 ,  H04W16/28 ,  H04W72/082 ,  H04W88/08 ,  H04W92/20

摘要： A base station in a downlink multi-antenna multi-base station system comprises: a unit for acquiring spatial domain characteristic information for downlink interference; a unit for generating an interference coordination indication based on the spatial domain characteristic information for downlink interference; and a background interface communication unit for transmitting the generated interference coordination indication to a neighboring base station, instructing the neighboring base station to perform resource scheduling, thereby reducing or eliminating interference on the base station. Also disclosed is a method for interference coordination, which is capable of reducing or eliminating interference on a serving base station from its neighboring base stations by utilizing an interference coordination indication transmitted from the serving base station. Only a small amount of inter-base station signaling interaction is required to achieve distributed inter-cell interference coordination. The present invention has the advantages of low signaling overhead, simple implementation, decreased delay, and flexible adaptation.

摘要翻译： 下行链路多天线多基站系统中的基站包括：用于获取下行链路干扰的空间域特性信息的单元; 基于用于下行链路干扰的空间域特性信息来生成干扰协调指示的单元; 以及背景接口通信单元，用于将生成的干扰协调指示发送到相邻基站，指示相邻基站执行资源调度，从而减少或消除基站上的干扰。 还公开了一种用于干扰协调的方法，其能够通过利用从服务基站发送的干扰协调指示来减少或消除从其相邻基站对服务基站的干扰。 仅需要少量的基站间信令交互来实现分布式小区间干扰协调。 本发明具有信令开销低，实现简单，延迟延迟和灵活适应的优点。