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：US08391229B2

公开(公告)日：2013-03-05

申请号：US12864653

申请日：2008-12-02

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

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

IPC分类号： H04W4/00

CPC分类号： H04J13/0062 ,  H04J13/0003 ,  H04J13/22 ,  H04W72/0466 ,  H04W74/08

摘要： The present invention provides a method and apparatus for sequencing ZC sequences of a random access channel. The method comprises: setting α as a logical index of each ZC sequence, and u as a physical index of said each ZC sequence, wherein 1≦u≦N−1, 0≦α≦N−2, and N is the length of said each ZC sequence; establishing a mapping relationship between the logical index and the physical index: u=N/2 is taken as a symmetry axis, α is mapped to u in a manner of longitudinal symmetry, and on the upper side of the symmetry axis, u monotonously decreases or increases, while on the lower side of the symmetry axis, u monotonously increases or decreases. This method ensures that the PRACHs of the UEs using different sequences in a same cell have similar coverage, thus the flexibility of cell planning is increased.

摘要翻译： 本发明提供了一种用于对随机接入信道的ZC序列进行排序的方法和装置。 该方法包括：将α设置为每个ZC序列的逻辑索引，u作为所述每个ZC序列的物理索引，其中1＆nlE; u＆nlE; N-1,0＆nlE;α＆nlE; N-2和N是 说每个ZC序列; 建立逻辑索引与物理指标之间的映射关系：u = N / 2作为对称轴，α以纵向对称方式映射到u，在对称轴的上侧，u单调减小 或增加，而在对称轴的下侧，u单调增加或减少。 该方法确保在同一小区中使用不同序列的UE的PRACH具有相似的覆盖，从而增加了小区规划的灵活性。

公开(公告)号：US20110013546A1

公开(公告)日：2011-01-20

申请号：US12920958

申请日：2009-06-02

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

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

IPC分类号： H04L5/14

CPC分类号： H04L5/0007 ,  H04L5/005 ,  H04L5/0091 ,  H04W72/044

摘要： A method for sending a sounding reference signal (SRS) of uplink channel in a time division duplex system is provided, a terminal calculates the parameters of the resource for sending an SRS in an uplink pilot time slot (UpPTS) according to the configuration information related to the sounding reference signal (SRS) of the uplink channel, the parameters include the frequency domain start position of the resource, and then the SRS is sent over the resource; wherein when the frequency domain start position of the resource is calculated, it is necessary to determine the index of the first sub-carrier in the maximum SRS bandwidth; the terminal determines the index according to the frequency domain position of one PRACH or that of more PRACHs in the uplink pilot time slots, when the PRACH includes the sub-carrier at the lower boundary of the system bandwidth, the upper boundary of the system bandwidth is used as the end position of the maximum SRS bandwidth and the start position of the maximum SRS bandwidth is calculated; and when the PRACH includes the sub-carrier at the upper boundary of the system bandwidth, the lower boundary of the system bandwidth is used as the start position of the maximum SRS bandwidth, and then the index is determined through the start position of the maximum SRS bandwidth plus the offset parameter configured for the terminal. With the sending position of the maximum SRS bandwidth in the UpPTS, which is obtained by the method of the present invention, the interference between the SRS signal and the PARCH can be avoided, and it is possible to implement the channel sounding for more bandwidth.

摘要翻译： 提供了一种用于在时分双工系统中发送上行链路信道的探测参考信号（SRS）的方法，终端根据相关配置信息计算上行链路导频时隙（UpPTS）中发送SRS的资源参数 到上行链路信道的探测参考信号（SRS），参数包括资源的频域起始位置，然后通过资源发送SRS; 其中，当计算出资源的频域起始位置时，需要确定最大SRS带宽中的第一子载波的索引; 当PRACH包括系统带宽下边界的子载波时，终端根据一个PRACH的频域位置或上行导频时隙中的更多PRACH的频域确定索引，系统带宽的上限 用作最大SRS带宽的最终位置，并计算最大SRS带宽的起始位置; 并且当PRACH在系统带宽的上边界处包括子载波时，系统带宽的下边界被用作最大SRS带宽的起始位置，然后通过最大值的起始位置确定索引 SRS带宽加上为终端配置的偏移参数。 通过本发明的方法获得的UPPTS中的最大SRS带宽的发送位置可以避免SRS信号与PARCH之间的干扰，并且可以实现更多带宽的信道探测。

公开(公告)号：US20110007674A1

公开(公告)日：2011-01-13

申请号：US12919665

申请日：2009-02-13

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

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

IPC分类号： H04L5/14 ,  H04B1/44

CPC分类号： H04L1/1812 ,  H04L1/1803 ,  H04L1/1806 ,  H04L1/1809 ,  H04L1/1825 ,  H04L1/1861 ,  H04L1/1864 ,  H04L5/0055 ,  H04L5/1469

摘要： The present disclosure provides a method for allocating physical hybrid ARQ indicator channels, which is used for sending indication information corresponding to multiple uplink sub-frames in the same downlink sub-frame in a TDD system. The method includes: in the TDD system, through an index of a physical resource block where uplink data resides as well as an index of an uplink sub-frame where the uplink data resides, determining an index of a physical hybrid ARQ indicator channel group where a physical hybrid ARQ indicator channel in an downlink sub-frame resides and an intra-group index of the physical hybrid ARQ indicator channel in the physical hybrid ARQ indicator channel group according to an indexing rule, and further determining an index of the physical hybrid ARQ indicator channel by using the index of the physical hybrid ARQ indicator channel group and the intra-group index. According to implicit mapping, the method of the present disclosure implements the allocation of the physical hybrid ARQ indicator channels over which the downlink indication messages corresponding to each uplink sub-frame are transmitted, thereby being capable of overcoming the problem potentially present in existing technologies that multiple indication messages reside on the same physical hybrid ARQ indicator channel.

摘要翻译： 本公开提供了一种用于分配物理混合ARQ指示符信道的方法，用于在TDD系统中的相同下行链路子帧中发送对应于多个上行链路子帧的指示信息。 该方法包括：在TDD系统中，通过上行链路数据所在的物理资源块的索引以及上行链路数据所在的上行链路子帧的索引，确定物理混合ARQ指示符信道组的索引，其中 根据索引规则，下行子帧中的物理混合ARQ指示符信道驻留在物理混合ARQ指示符信道组中的物理混合ARQ指示符信道的组内索引，并进一步确定物理混合ARQ指示符信道的索引 指标通道采用物理混合ARQ指标通道组索引和组内指标。 根据隐式映射，本公开的方法实现物理混合ARQ指示符信道的分配，通过该配置，发送与每个上行链路子帧相对应的下行链路指示消息，从而能够克服现有技术中潜在存在的问题， 多个指示消息驻留在相同的物理混合ARQ指示符通道上。

公开(公告)号：US20100309993A1

公开(公告)日：2010-12-09

申请号：US12864653

申请日：2008-12-02

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

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

IPC分类号： H04L27/00

CPC分类号： H04J13/0062 ,  H04J13/0003 ,  H04J13/22 ,  H04W72/0466 ,  H04W74/08

摘要： The present invention provides a method and apparatus for sequencing ZC sequences of a random access channel. The method comprises: setting α as a logical index of each ZC sequence, and u as a physical index of said each ZC sequence, wherein 1≦u≦N−1, 0≦α≦N−2, and N is the length of said each ZC sequence; establishing a mapping relationship between the logical index and the physical index: u=N/2 is taken as a symmetry axis, α is mapped to u in a manner of longitudinal symmetry, and on the upper side of the symmetry axis, u monotonously decreases or increases, while on the lower side of the symmetry axis, u monotonously increases or decreases. This method ensures that the PRACHs of the UEs using different sequences in a same cell have similar coverage, thus the flexibility of cell planning is increased.

摘要翻译： 本发明提供了一种用于对随机接入信道的ZC序列进行排序的方法和装置。 该方法包括：将α设置为每个ZC序列的逻辑索引，u作为所述每个ZC序列的物理索引，其中1＆nlE; u＆nlE; N-1,0＆nlE;α＆nlE; N-2和N是 说每个ZC序列; 建立逻辑索引与物理指标之间的映射关系：u = N / 2作为对称轴，α以纵向对称方式映射到u，在对称轴的上侧，u单调减小 或增加，而在对称轴的下侧，u单调增加或减少。 该方法确保在同一小区中使用不同序列的UE的PRACH具有相似的覆盖，从而增加小区规划的灵活性。

公开(公告)号：US20100309826A1

公开(公告)日：2010-12-09

申请号：US12809177

申请日：2008-11-21

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

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

IPC分类号： H04J3/00

CPC分类号： H04L1/1671

摘要： A method for sending physical hybrid ARQ indicator channel signals in a downlink pilot time slot, comprises steps as follows: the PHICH signals are sent in one or more symbols included in the DwPTS by a base station, and the OFDM symbol used for sending the PHICH signals by the base station differs from the OFDM symbols used for sending P-SCH signals and S-SCH signals by the base station. According to the method, not only the problem of the confliction between the PHICH signals and the synchronization channel signals in the DwPTS is solved, but also the time delay for sending the PHICH signals is reduced as much as possible, thus an influence on other channels is reduced, and processing of other channels is facilitated.

摘要翻译： 一种用于在下行链路导频时隙中发送物理混合ARQ指示符信道信号的方法，包括以下步骤：由基站发送包含在DwPTS中的一个或多个符号中的PHICH信号，用于发送PHICH的OFDM符号 基站的信号与基站用于发送P-SCH信号和S-SCH信号的OFDM符号不同。 根据该方法，不仅解决了DwPTS中的PHICH信号与同步信道信号之间的冲突的问题，而且尽可能地减少发送PHICH信号的时间延迟，从而影响其他信道 减少了其他信道的处理。

公开(公告)号：US09215730B2

公开(公告)日：2015-12-15

申请号：US12995928

申请日：2008-12-10

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

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

IPC分类号： H04J11/00 ,  H04W4/00 ,  H04W72/14 ,  H04W72/12

CPC分类号： H04W72/14 ,  H04W72/1289

摘要： The present invention provides a method for transmitting a PDCCH (physical downlink control channel) signal, when the number of available resource blocks of the downlink bandwidth in a radio frame is less than or equal to k, 2 symbols are fixedly used to transmit the physical downlink control channel, wherein k is a natural number. The present invention further provides another method for transmitting a PDCCH signal. In a TDD Long Term Evolution system, when the number of available resource blocks of the downlink bandwidth in a radio frame is less than or equal to k and the uplink/downlink switching period is 10 ms, the transmitting end selects 2, 3 or 4 symbols to transmit the PDCCH signal in subframe 6. With the transmission method of the PDCCH signal provided in the present invention, the utilization efficiency of the system resources and the transmission performance of PDCCH can be improved.

摘要翻译： 本发明提供一种发送PDCCH（物理下行链路控制信道）信号的方法，当无线帧中的下行链路带宽的可用资源块的数量小于或等于k时，2个符号被固定地用于发送物理 下行链路控制信道，其中k是自然数。 本发明还提供了另一种用于发送PDCCH信号的方法。 在TDD长期演进系统中，当无线帧中下行链路带宽的可用资源块的数量小于或等于k且上行/下行切换周期为10ms时，发送端选择2,3或4 在子帧6中发送PDCCH信号的符号。利用本发明提供的PDCCH信号的发送方法，可以提高系统资源的利用效率和PDCCH的传输性能。

公开(公告)号：US08913673B2

公开(公告)日：2014-12-16

申请号：US13003997

申请日：2009-07-03

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

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

IPC分类号： H04K1/00 ,  H04B7/06

CPC分类号： H04B7/063 ,  H04B7/0671

摘要： The present invention discloses a method and apparatus for transmitting rank indication information, in which the method comprises: when rank indication information and a sounding reference signal are transmitted in a same sub-frame, loading the sounding reference signal to a last symbol of a sub-frame, and transmitting the rank indication information and the sounding reference signal. The present invention prevents destruction of orthogonality of codes between PUCCH channels when the rank indication information and the sounding reference signal are transmitted in the same sub-frame, thus the overall performance of the system can be ensured.

摘要翻译： 本发明公开了一种用于发送秩指示信息的方法和装置，其中该方法包括：当在相同的子帧中发送秩指示信息和探测参考信号时，将探测参考信号加载到子的最后一个符号 帧，并发送秩指示信息和探测参考信号。 本发明在同一子帧中发送秩指示信息和探测参考信号时，可以防止PUCCH信道之间的代码的正交性破坏，从而可以保证系统的整体性能。

公开(公告)号：US08743899B2

公开(公告)日：2014-06-03

申请号：US12934976

申请日：2008-10-17

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

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

IPC分类号： H04J4/00 ,  H04L5/00

CPC分类号： H04L5/0007 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0087 ,  H04L5/1484 ,  H04L27/2607

摘要： A method for sending a physical broadcast channel in the TDD system is disclosed, which is: a signal of a physical broadcast channel is not sent in a pilot position, and the signal of the physical broadcast channel is sent on 4 OFDM symbols of the first subframe of one radio frame. Through the present invention, the extension requirement of the physical broadcast channel capacity in the TDD can be met, and the system complexity is reduced due to the normal cyclic prefix and extended prefix using the same sending method.

摘要翻译： 公开了一种在TDD系统中发送物理广播信道的方法，其特征在于：物理广播信道的信号不在导频位置发送，物理广播信道的信号在第一 一个无线电帧的子帧。 通过本发明，可以满足TDD中物理广播信道容量的扩展要求，并且使用相同的发送方法由于正常循环前缀和扩展前缀而降低系统复杂度。