公开(公告)号：US20050041321A1

公开(公告)日：2005-02-24

申请号：US10642909

申请日：2003-08-18

申请人： Chris Settje ,  David Schell ,  Daniel Hobson ,  Teck Lim ,  Patrick Wong ,  Beng Quak ,  Ming Ding ,  Soon Leow

发明人： Chris Settje ,  David Schell ,  Daniel Hobson ,  Teck Lim ,  Patrick Wong ,  Beng Quak ,  Ming Ding ,  Soon Leow

IPC分类号： G11B5/55 ,  G11B5/596 ,  G11B15/12

CPC分类号： G11B5/59627 ,  G11B5/5526

摘要： An apparatus and method for selecting physical cylinders (cylinders accessible for read/write operations) in a disc drive is provided. The disc drive includes at least one rotatable disc. The disc drive also includes a first head, which is positionable adjacent a first disc surface, and a second head, which is positionable adjacent a second disc surface. The first disc surface has a first plurality of greycode tracks and the second disc surface has a second plurality of greycode tracks. Each greycode track of the second plurality of greycode tracks corresponds to a different greycode track of the first plurality of greycode tracks, thereby forming a plurality of greycode cylinders, with each greycode cylinder of the plurality of greycode cylinders including a pair of corresponding greycode tracks. The physical cylinders are a subset (less than all) of the plurality of the greycode cylinders. The method of selecting the physical cylinders includes determining whether the first plurality of greycode tracks or the second plurality of greycode tracks demonstrates greater track eccentricity, to thereby obtain a maximum track eccentricity surface and a corresponding maximum eccentricity head. The maximum track eccentricity surface is one of the first and second disc surfaces and the maximum eccentricity head is a corresponding one of the first and second heads. The maximum eccentricity head is used to locate at least one of the physical cylinders.

公开(公告)号：US08934430B2

公开(公告)日：2015-01-13

申请号：US13500596

申请日：2010-10-28

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

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

IPC分类号： H04W4/00 ,  H04L5/00

CPC分类号： H04L5/0048 ,  H04B7/0426 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0091 ,  H04L5/0094 ,  H04W52/143 ,  H04W52/22 ,  H04W52/225 ,  H04W52/228 ,  H04W52/42

摘要： A method of notifying resource allocation for Demodulation Reference Signal (DMRS) is provided. A base station notifies to a user equipment a power offset value between an average EPRE value for data symbols and an average EPRE value for the DMRS at each layer in a semi-static or static manner. Also, the base station dynamically notifies to the user equipment a current channel rank or a current DMRS distribution pattern for the user equipment. The user equipment determines an allocated DMRS antenna port based on a correspondence between the received channel rank and an allocation of DMRS antenna port, thereby obtaining resource allocation information for the DMRS. The signaling overhead for power allocation in the system can be reduced, the efficiency of power amplifier can be improved and the flexibility of system scheduling can be increased. A method of notifying antenna port resource allocation for DMRS is also provided.

摘要翻译： 提供了一种通知资源分配解调参考信号（DMRS）的方法。 基站以半静态或静态方式向用户设备通知数据符号的平均EPRE值与每层的DMRS的平均EPRE值之间的功率偏移值。 此外，基站向用户设备动态地通知用户设备的当前信道等级或当前DMRS分布模式。 用户设备基于所接收的信道秩和DMRS天线端口的分配之间的对应关系确定分配的DMRS天线端口，从而获得DMRS的资源分配信息。 可以降低系统功率分配的信令开销，提高功率放大器的效率，提高系统调度的灵活性。 还提供了一种通知天线端口资源分配DMRS的方法。

公开(公告)号：US20130089064A1

公开(公告)日：2013-04-11

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

CPC分类号： H04W72/04 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/06 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0057 ,  H04L5/0094 ,  H04W24/02 ,  H04W68/00

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.

摘要翻译： 提供了一种用于信道状态信息（CSI）反馈的资源分配方法，包括以下步骤：为每个用户设备（UE）配置下行链路传输方式和反馈模式; 基于所配置的下行链路传输方法和反馈模式，分配每个UE对CSI反馈所需的反馈资源，使得用于单个UE的不同反馈模式的不同类型将不会在一个子帧内彼此冲突; 并通知每个UE对应配置的下行链路传输方法和反馈模式以及分配的反馈资源。 此外，提供了一种信道状态信息（CSI）反馈的方法，包括以下步骤：基于下行链路传输方式和由BS配置的反馈模式将下行链路CSI馈送回基站（BS）; 并且当不同的反馈模式的不同类型在一个子帧内相互冲突时，解决基于碰撞解决规则的冲突。

公开(公告)号：US20130077704A1

公开(公告)日：2013-03-28

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： H04B7/04

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。 本发明可以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：US20120224551A1

公开(公告)日：2012-09-06

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： H04W72/04 ,  H04W4/00

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：US20120207119A1

公开(公告)日：2012-08-16

申请号：US13500596

申请日：2010-10-28

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

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

IPC分类号： H04W72/06

CPC分类号： H04L5/0048 ,  H04B7/0426 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0091 ,  H04L5/0094 ,  H04W52/143 ,  H04W52/22 ,  H04W52/225 ,  H04W52/228 ,  H04W52/42

摘要： A method of notifying resource allocation for Demodulation Reference Signal (DMRS) is provided. A base station notifies to a user equipment a power offset value between an average EPRE value for data symbols and an average EPRE value for the DMRS at each layer in a semi-static or static manner. Also, the base station dynamically notifies to the user equipment a current channel rank or a current DMRS distribution pattern for the user equipment. The user equipment determines an allocated DMRS antenna port based on a correspondence between the received channel rank and an allocation of DMRS antenna port, thereby obtaining resource allocation information for the DMRS. The signaling overhead for power allocation in the system can be reduced, the efficiency of power amplifier can be improved and the flexibility of system scheduling can be increased. A method of notifying antenna port resource allocation for DMRS is also provided.

摘要翻译： 提供了一种通知资源分配解调参考信号（DMRS）的方法。 基站以半静态或静态方式向用户设备通知数据符号的平均EPRE值与每层的DMRS的平均EPRE值之间的功率偏移值。 此外，基站向用户设备动态地通知用户设备的当前信道等级或当前DMRS分布模式。 用户设备基于所接收的信道秩和DMRS天线端口的分配之间的对应关系确定分配的DMRS天线端口，从而获得DMRS的资源分配信息。 可以降低系统功率分配的信令开销，提高功率放大器的效率，提高系统调度的灵活性。 还提供了一种通知天线端口资源分配DMRS的方法。

公开(公告)号：US20230280538A1

公开(公告)日：2023-09-07

申请号：US17747972

申请日：2022-05-18

申请人： Tongqing Wang ,  Ming Ding

发明人： Tongqing Wang ,  Ming Ding

IPC分类号： G02B6/293 ,  F21V8/00

CPC分类号： G02B6/29394 ,  G02B6/0026 ,  G02B6/29322

摘要： Embodiment of present invention provide an optical subassembly that includes a first, a second, and a third band filter (BF) each having a common port (CP), a port-A (PA), and a port-B (PB). The PA of the second BF is connected to the PA of the third BF and the PB of the first BF is connected to the PB of the third BF. The optical subassembly is adapted to route a first optical signal of a blue band from the PA to the CP of the first BF; to route the first optical signal from the CP of the second BF to the CP of the third BF; to route a second optical signal of a red band from the CP of the third BF to the CP of the first BF; and to route the second optical signal from the CP to the PB of the second BF.

公开(公告)号：US08934941B2

公开(公告)日：2015-01-13

申请号：US13255348

申请日：2010-03-08

申请人： Ming Ding ,  Renmao Liu ,  Yingyu Zhang ,  Lei Huang ,  Chen Chen

发明人： Ming Ding ,  Renmao Liu ,  Yingyu Zhang ,  Lei Huang ,  Chen Chen

IPC分类号： H04M1/00 ,  H04B7/02 ,  H04B7/04 ,  H04B7/06

CPC分类号： H04B7/024 ,  H04B7/0434 ,  H04B7/0452 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0621 ,  H04B7/0639

摘要： The present invention discloses a channel reconstruction method for a downlink multi-antenna-multi-base-station with inconsistent antenna configuration. Firstly, a serving base station configures a user equipment. If antenna configuration of the multi-antenna-multi-base-station system is inconsistent, virtual antennas are introduced to a base station with fewer antennas in the system. A user equipment selects and feeds back indices of the virtual antennas and reconstructs channels of the multi-antenna-multi-base-station system to generate a consistent antenna configuration. Finally, the multi-antenna-multi-base-station system transmits a signal to the user equipment by adopting a transmission pre-processing scheme of the consistent antenna configuration. The present invention provides also a serving base station, a cooperative base station and a user equipment for realizing the channel reconstruction method. The present invention has advantages of large application range, simple implementation and better performance.

摘要翻译： 本发明公开了一种具有不一致天线配置的下行多天线多基站的信道重构方法。 首先，服务基站配置用户设备。 如果多天线多基站系统的天线配置不一致，则将虚拟天线引入到系统中具有较少天线的基站。 用户设备选择并反馈虚拟天线的索引并重建多天线多基站系统的信道以产生一致的天线配置。 最后，多天线多基站系统采用一致天线配置的传输预处理方案向用户设备发送信号。 本发明还提供一种服务基站，协作基站和用于实现信道重构方法的用户设备。 本发明具有应用范围广，实现简单，性能好等优点。

公开(公告)号：US20130286881A1

公开(公告)日：2013-10-31

申请号：US13978220

申请日：2012-01-19

申请人： Ming Ding ,  Lei Huang ,  Zeng Yang ,  Renmao Liu

发明人： Ming Ding ,  Lei Huang ,  Zeng Yang ,  Renmao Liu

IPC分类号： H04W24/02

CPC分类号： H04L1/0003 ,  H04L5/0048 ,  H04W8/24 ,  H04W24/02 ,  H04W28/04 ,  H04W88/08

摘要： A Channel State Information (CSI) feedback method and a User Equipment (UE) are disclosed. The method comprises the following steps of: determining a set of coordinated Base Stations (BSs) participating multi-BS coordination, the set of coordination BSs containing a serving BS and at least one non-serving BS; for each BS in the set of coordinated BSs: calculating a Signal to Interference and Noise Ratio (SINR) for a channel between a UE and the BS based on a hypothetical BS coordination mode corresponding to the BS; and deriving a Channel Quality Index (CQI) corresponding to the calculated SINR and feeding back the derived CQI to the serving BS.

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。