公开(公告)号：US08483306B2

公开(公告)日：2013-07-09

申请号：US13259667

申请日：2010-06-30

申请人： Yijian Chen ,  Guanghui Yu ,  Bo Dai ,  Xun Yang

发明人： Yijian Chen ,  Guanghui Yu ,  Bo Dai ,  Xun Yang

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L1/0029 ,  H04B7/0639 ,  H04L1/06 ,  H04L25/03923

摘要： A pre-coding method and system and a method for constructing pre-coding codebook are disclosed, including: a transmitting end and a receiving end storing information of a pre-coding codebook together, the receiving end selecting a codeword from the pre-coding codebook according to an estimated channel matrix and feeding back a serial number of the codeword to the transmitting end, and the transmitting end finding out the codeword according to the serial number and pre-coding, by using the codeword, a symbol block sent to the receiving end; wherein, at least eight codeword vectors or column vectors in at least eight codeword matrixes in the pre-coding codebook are obtained based on 8-dimensional vectors selected from a 8-dimensional vector set, and this 8-dimensional vector set is obtained by calculating from the part or all of 4-dimensional vectors in u1, u2, u3, u4, u5, u6, u7, u8, s, m, n.

摘要翻译： 公开了一种用于构建预编码码本的预编码方法和系统及方法，包括：发送端和接收端一起存储预编码码本的信息，接收端从预编码码本中选择码字 根据估计的信道矩阵并将码字的序列号反馈到发送端，并且发送端通过使用码字来根据序列号和预编码找出码字，发送到接收端的符号块 结束; 其中，基于从8维向量集合中选择的8维向量获得预编码码本中的至少8个码字矩阵中的至少8个码字向量或列向量，并且该8维向量集是通过计算 从u1，u2，u3，u4，u5，u6，u7，u8，s，m，n的4维向量的部分或全部。

公开(公告)号：US20120134434A1

公开(公告)日：2012-05-31

申请号：US13259667

申请日：2010-06-30

申请人： Yijian Chen ,  Guanghui Yu ,  Bo Dai ,  Xun Yang

发明人： Yijian Chen ,  Guanghui Yu ,  Bo Dai ,  Xun Yang

IPC分类号： H04L25/49 ,  H04B7/02

CPC分类号： H04L1/0029 ,  H04B7/0639 ,  H04L1/06 ,  H04L25/03923

摘要： A pre-coding method and system and a method for constructing pre-coding codebook are disclosed, including: a transmitting end and a receiving end storing information of a pre-coding codebook together, the receiving end selecting a codeword from the pre-coding codebook according to an estimated channel matrix and feeding back a serial number of the codeword to the transmitting end, and the transmitting end finding out the codeword according to the serial number and pre-coding, by using the codeword, a symbol block sent to the receiving end; wherein, at least eight codeword vectors or column vectors in at least eight codeword matrixes in the pre-coding codebook are obtained based on 8-dimensional vectors selected from a 8-dimensional vector set, and this 8-dimensional vector set is obtained by calculating from the part or all of 4-dimensional vectors in u1, u2, u3, u4, u5, u6, u7, u8, s, m, n.

摘要翻译： 公开了一种用于构建预编码码本的预编码方法和系统及方法，包括：发送端和接收端一起存储预编码码本的信息，接收端从预编码码本中选择码字 根据估计的信道矩阵并将码字的序列号反馈到发送端，并且发送端通过使用码字来根据序列号和预编码找出码字，发送到接收端的符号块 结束; 其中，基于从8维向量集合中选择的8维向量获得预编码码本中的至少8个码字矩阵中的至少8个码字向量或列向量，并且该8维向量集是通过计算 从u1，u2，u3，u4，u5，u6，u7，u8，s，m，n的4维向量的部分或全部。

公开(公告)号：US08693415B2

公开(公告)日：2014-04-08

申请号：US12991262

申请日：2009-07-03

申请人： Bo Dai ,  Chunli Liang ,  Peng Hao ,  Shuqiang Xia ,  Guanghui Yu

发明人： Bo Dai ,  Chunli Liang ,  Peng Hao ,  Shuqiang Xia ,  Guanghui Yu

IPC分类号： H04W4/00 ,  H04L5/00 ,  H04W72/04

CPC分类号： H04L5/0053 ,  H04J13/0003 ,  H04L5/0023 ,  H04L5/0094 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/0413

摘要： The present invention discloses a method and an apparatus for sending rank indication (RI) information, and a method and an apparatus for receiving RI information, wherein the method for sending the RI information includes: carrying the RI information on a physical uplink control channel (PUCCH) for transmitting scheduling request (SR) information when the RI information and the SR information are sent within a same subframe, and sending the RI information and the SR information by using the PUCCH for transmitting SR information. According to the present invention, the problem that the orthogonality of codes between PUCCHs is destroyed due to that the RI information and the SR information are sent within a same subframe is solved, the overall system performance thereby can be guaranteed.

摘要翻译： 本发明公开了一种用于发送秩指示（RI）信息的方法和装置，以及用于接收RI信息的方法和装置，其中发送RI信息的方法包括：在物理上行链路控制信道 PUCCH），用于在RI信息和SR信息在同一子帧内发送时发送调度请求（SR）信息，并且通过使用用于发送SR信息的PUCCH发送RI信息和SR信息。 根据本发明，解决了在相同子帧内发送RI信息和SR信息之后，PUCCH之间的代码的正交性被破坏的问题，从而可以保证整个系统的性能。

公开(公告)号：US08547922B2

公开(公告)日：2013-10-01

申请号：US13258313

申请日：2010-06-10

申请人： Guanghui Yu ,  Ruyue Li ,  Yunfeng Sun ,  Bo Dai ,  Junfeng Zhang

发明人： Guanghui Yu ,  Ruyue Li ,  Yunfeng Sun ,  Bo Dai ,  Junfeng Zhang

IPC分类号： H04W4/00

CPC分类号： H04L5/0051

摘要： The present disclosure discloses a signal resource determination method, and the method includes that: carrying a dedicated demodulation data reference signal in a Resource Element (RE) on an Orthogonal Frequency Division Multiplexing (OFDM) symbol, wherein the OFDM symbol is in a non-control channel area of a Resource Block (RB) and carries a non-common reference signal.

摘要翻译： 本公开公开了一种信号资源确定方法，所述方法包括：在正交频分复用（OFDM）符号上的资源元素（RE）中承载专用解调数据参考信号，其中所述OFDM符号处于非 - 资源块（RB）的控制信道区域并且携带非公共参考信号。

公开(公告)号：US08369302B2

公开(公告)日：2013-02-05

申请号：US13257688

申请日：2010-03-15

申请人： Bo Dai ,  Xin Wu ,  Guanghui Yu ,  Zhisong Zuo

发明人： Bo Dai ,  Xin Wu ,  Guanghui Yu ,  Zhisong Zuo

IPC分类号： H04B7/208

CPC分类号： H04L5/0048 ,  H04L27/2602

摘要： The present invention provides a method and system for mapping a reference signal sequence in an advanced Long Term Evolution (LTE) system, and the method and the system are used to map the reference signal sequence to an orthogonal frequency division multiplexing symbol of l. The method includes: when the system uses a normal cyclic prefix, determining the symbol l according to an expression, and mapping the reference signal sequence to a location of a sub-carrier k on the symbol l of an antenna port p. The system includes: a mapping module, a first acquiring module and a second acquiring module. The system and the method which are provided ensure the transmission performance while ensuring the interference randomization. In addition, the system and the method are compatible with existing LTE systems, thus realizing high-order Multiple Input Multiple Output (MIMO) transmission, supporting the usage of the corresponding techniques.

摘要翻译： 本发明提供了一种用于在高级长期演进（LTE）系统中映射参考信号序列的方法和系统，并且该方法和系统用于将参考信号序列映射到l的正交频分复用符号。 该方法包括：当系统使用正常循环前缀时，根据表达式确定符号l，并将参考信号序列映射到天线端口p的符号l上的子载波k的位置。 该系统包括：映射模块，第一获取模块和第二获取模块。 提供的系统和方法确保了传输性能，同时确保干扰随机化。 此外，该系统和方法与现有的LTE系统兼容，从而实现高阶多输入多输出（MIMO）传输，支持相应技术的使用。

公开(公告)号：US09247458B2

公开(公告)日：2016-01-26

申请号：US14003584

申请日：2011-08-01

申请人： Zhirong Lin ,  Shuqiang Xia ,  Guanghui Yu ,  Chunli Liang ,  Bo Dai ,  Peng Hao

发明人： Zhirong Lin ,  Shuqiang Xia ,  Guanghui Yu ,  Chunli Liang ,  Bo Dai ,  Peng Hao

IPC分类号： H04W28/12 ,  H04L5/00 ,  H04W28/06 ,  H04W48/08

摘要： The disclosure discloses a method for transmitting a pilot, which includes the step of: selectively transmitting or not transmitting a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. A system for transmitting the pilot is further disclosed, which includes a pilot selectively transmitting unit configured to selectively transmit or not transmit a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. The method and system of the disclosure are capable of reducing the pilot overhead and improving the capacity of the LTE/LTE-Advanced system.

公开(公告)号：US09001707B2

公开(公告)日：2015-04-07

申请号：US12674336

申请日：2008-10-23

申请人： Bo Dai ,  Shuqiang Xia ,  Peng Hao ,  Chunli Liang ,  Guanghui Yu ,  Liujun Hu ,  Bin Yu

发明人： Bo Dai ,  Shuqiang Xia ,  Peng Hao ,  Chunli Liang ,  Guanghui Yu ,  Liujun Hu ,  Bin Yu

IPC分类号： H04J3/00 ,  H04B7/26 ,  H04L27/26 ,  H04L27/28 ,  H04W48/12

CPC分类号： H04B7/2656 ,  H04L27/2602 ,  H04W48/12

摘要： A signal transmission method in a Time Division Duplex (TDD) system is disclosed. The method comprises following steps: within a time length of a half-frame of a radio frame, base station transmits signal on a downlink special time slot, thereafter does not transmit signal on a Guard Period (GP), and then receives signal on an uplink special time slot; all time lengths of other uplink or downlink normal time slots for transmitting signal are equal; the total time length of the downlink special time slot, the guard period and the uplink special time slot is integer times of the time length of an uplink or downlink normal time slot. In addition, a frame structure adopted in the TDD system which corresponds to the method is disclosed. The present invention makes it flexible to set the duration of the GP and it is guaranteed that, even if a synchronization signal adopts power promotion, it will not bring great interference to uplink reception of other base stations; in addition, the utilization efficiency of the system is improved.

摘要翻译： 公开了时分双工（TDD）系统中的信号传输方法。 该方法包括以下步骤：在无线帧的半帧的时间长度内，基站在下行专用时隙发送信号，之后不在保护周期（GP）上发送信号，然后在 上行专用时隙; 用于发送信号的其他上行链路或下行链路正常时隙的所有时间长度相等; 下行专用时隙的总时间长度，保护周期和上行专用时隙是上行链路或下行链路正常时隙的时间长度的整数倍。 另外，公开了对应于该方法的TDD系统采用的帧结构。 本发明灵活设置GP的持续时间，并且保证即使同步信号采用功率提升，也不会对其他基站的上行接收带来很大的干扰; 此外，系统的利用效率得到提高。

公开(公告)号：US08879494B2

公开(公告)日：2014-11-04

申请号：US13638756

申请日：2010-08-19

申请人： Bo Dai ,  Xin Wu ,  Ping Zeng ,  Guanghui Yu ,  Zhisong Zuo

发明人： Bo Dai ,  Xin Wu ,  Ping Zeng ,  Guanghui Yu ,  Zhisong Zuo

IPC分类号： H04W4/00 ,  H04L12/26 ,  H04W72/04 ,  H04L5/00 ,  H04W24/10 ,  H04W28/06 ,  H04W48/08 ,  H04W72/00 ,  H04B7/06

CPC分类号： H04W72/042 ,  H04B7/0643 ,  H04L5/001 ,  H04L5/0094 ,  H04W24/10 ,  H04W28/06 ,  H04W48/08 ,  H04W72/00 ,  H04W72/04

摘要： The present invention discloses a method and a system for non-periodic feedback in a carrier aggregation scenario. The method comprises: a base station sending a non-periodic trigger signaling to a piece of User Equipment (UE); the UE receiving the non-periodic trigger signaling, and determining a Downlink Component Carrier (DL CC) requiring feedback according to the non-periodic trigger signaling; the UE triggering a non-periodic feedback of the determined DL CC. With the present invention, the problem that it is impossible to determine which downlink component carrier is to be fed back according to the non-periodic trigger signaling in the carrier aggregation scenario is solved, uplink feedback of the DL CC that is unnecessary to be fed back is effectively reduced, the base station can adjust resource allocation according to information fed back by the UE, and the performance of downlink data transmission is ensured.

摘要翻译： 本发明公开了一种在载波聚合场景中的非周期性反馈的方法和系统。 该方法包括：向一个用户设备（UE）发送非周期性触发信令的基站; 所述UE接收所述非周期性触发信令，以及根据所述非周期触发信令确定需要反馈的下行链路分量载波（DL CC）; UE触发所确定的DL CC的非周期反馈。 利用本发明，解决了不可能根据载波聚合方案中的非周期性触发信令来确定哪个下行链路分量载波被反馈的问题，不需要馈送的DL CC的上行链路反馈 后台有效减少，基站可以根据UE反馈的信息调整资源分配，确保下行数据传输的性能。

公开(公告)号：US08340037B2

公开(公告)日：2012-12-25

申请号：US12674677

申请日：2007-12-24

申请人： Bo Dai ,  Shuqiang Xia ,  Guanghui Yu

发明人： Bo Dai ,  Shuqiang Xia ,  Guanghui Yu

IPC分类号： H04W4/00 ,  H04J1/00 ,  H04L27/28 ,  H04B7/02 ,  H04B7/00

CPC分类号： H04L5/0094 ,  H04L5/0007 ,  H04L5/0039

摘要： A method for generating continuous resource allocation signaling comprises: a sender determines a value of the total number of resource blocks NRB in a system according to the total resource number in the system and determines, according to the amount and location of the total resources occupied by the continuous resources allocated to the target user equipment, the number of continuous resource blocks allocated to the user equipment LCRBs and the value of the index number of the starting resource block RBstart in the continuous resource blocks allocated to the user equipment; the sender compares LCRBs−1 with └NRB/2┘ to compute the value RIV of the resource allocation signaling of the user equipment; if the LCRBs−1 is greater than the └NRB/2┘, then the RIV is NRB(NRB−LCRBs+1)+(NRB−1−RBstart); else the RIV is NRB(LCRBs−1)+RBstart; and the resource allocation signaling of the target user equipment is generated according to RIV and transmitted. An apparatus for generating continuous resource allocation signaling, and a method and an apparatus for parsing continuous resource allocation signaling, are also disclosed. The present invention ensures that under any resource allocation situation the overhead for resource allocation signaling is always ceil ( log 2 ⁢ N · ( N + 1 ) 2 ) .

摘要翻译： 一种用于生成连续资源分配信令的方法包括：发送方根据系统中的总资源数量确定系统中资源块总数NRB的值，并且根据系统占用的总资源的数量和位置确定 分配给目标用户设备的连续资源，分配给用户设备LCRB的连续资源块的数量和分配给用户设备的连续资源块中起始资源块RBstart的索引号的值; 发送方将LCRB-1与└NRB/ 2'进行比较，以计算用户设备的资源分配信令的值RIV; 如果LCRBs-1大于└NRB/ 2“，那么RIV是NRB（NRB-LCRBs + 1）+（NRB-1-RBstart）; 否则RIV是NRB（LCRBs-1）+ RBstart; 目标用户设备的资源分配信令根据RIV生成并发送。 还公开了一种用于生成连续资源分配信令的装置，以及用于解析连续资源分配信令的方法和装置。 本发明确保在任何资源分配情况下资源分配信令的开销总是小于（log 2 N·（N + 1）2）。

公开(公告)号：US20120236817A1

公开(公告)日：2012-09-20

申请号：US13512964

申请日：2010-06-29

申请人： Yijian Chen ,  Jun Xu ,  Guanghui Yu ,  Bo Dai ,  Junfeng Zhang

发明人： Yijian Chen ,  Jun Xu ,  Guanghui Yu ,  Bo Dai ,  Junfeng Zhang

IPC分类号： H04W4/00 ,  H04W72/02

CPC分类号： H04B7/0417 ,  H04B7/024 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0641 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0029

摘要： A method for feeding back channel state information and user equipment are provided in the present invention, which relates to the digital communication field; and they solve the problem of lacking a mechanism of reporting overall and effective channel state information in a SU-MIMO and MU-MIMO dynamic switching system. The method includes: in a single transmission mode, UE sends the channel state information to a network side, wherein the channel state information includes information indicating a transmission layer with the best channel quality. Technical schemes provided in the present invention are applied to the LTE system and LTE-A system.

摘要翻译： 在本发明中提供了一种用于反馈信道状态信息和用户设备的方法，该方法涉及数字通信领域; 解决了在SU-MIMO和MU-MIMO动态切换系统中缺乏报告整体有效的信道状态信息的机制的问题。 该方法包括：在单传输模式中，UE向网络侧发送信道状态信息，其中信道状态信息包括指示具有最佳信道质量的传输层的信息。 本发明提供的技术方案应用于LTE系统和LTE-A系统。