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：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。

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：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：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。