公开(公告)号：US20110164604A1

公开(公告)日：2011-07-07

申请号：US13061506

申请日：2009-05-15

Applicant: Peng Hao ,  Chunli Liang ,  Bo Dai ,  Bin Yu

Inventor： Peng Hao ,  Chunli Liang ,  Bo Dai ,  Bin Yu

IPC: H04J3/00 ,  H04L27/00

CPC classification number: H04L27/2626 ,  H04L5/0007 ,  H04L5/005

Abstract: The method for controlling signal transmission comprises: determining the first reference variable according to the number of transition points from downlink to uplink in a wireless frame of the system and the system frame number (S502); determining the second reference variable according to the number of transition points from downlink to uplink in a wireless frame and the time slot number (S504); determining the third reference variable according to the sub-frame offset of the signal (S506); and determining signal transmission times according to the first reference variable, the second reference variable and the third reference variable, so as to control the signal transmission (S508). In virtue of the technical solution of the present invention, by calculating the corresponding reference variables according to related parameters and treating the sum of the corresponding reference variables as the transmission times, the continuous SRS transmission times can be calculated, and the aim can be achieved that the UEs with the same SRS period have the same SRS transmission times at the same time, and the transmission times increase continuously for the UE, thereby the perfect frequency hopping performance can be obtained.

Abstract translation: 用于控制信号传输的方法包括：根据在系统的无线帧中的从下行链路到上行链路的转换点的数量和系统帧号确定第一参考变量（S502）; 根据从无线帧中的下行链路到上行链路的转换点的数量和时隙号确定第二参考变量（S504）; 根据信号的子帧偏移确定第三参考变量（S506）; 以及根据第一参考变量确定信号传输时间，第二参考变量和第三参考变量，以控制信号传输（S508）。 根据本发明的技术方案，通过根据相关参数计算相应的参考变量并将对应的参考变量的总和作为传输时间来计算，可以计算连续的SRS传输时间，并且可以实现目的 具有相同SRS周期的UE具有相同的SRS传输时间，并且UE的传输时间持续增加，从而可以获得完美的跳频性能。

公开(公告)号：US20110026445A1

公开(公告)日：2011-02-03

申请号：US12935862

申请日：2009-01-21

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

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

IPC: H04L5/14

CPC classification number: H04W74/002 ,  H04W74/0833

Abstract: The present invention discloses a method for configuring and indicating physical random access channel parameter in a time division duplex system, suitable for the long term evolution, system, including: the same PRACH configuration set is stored in a base station and a terminal respectively; when performing a PRACH configuration, the terminal inquires the PRACH configuration set according to configuration information to obtain a configuration parameter, and/or the terminal computes to obtain the configuration parameter according to a system parameter. Set by using the method provided by the present invention, the PRACH configuration set can provide enough density types for various PRACH formats in order to meet the requirements of different system loads, and meanwhile can provide enough version types for each combination of format and density, decrease the processing load of the base station, and reduce the inter-cell interference.

Abstract translation: 本发明公开了一种在时分双工系统中配置和指示物理随机接入信道参数的方法，适用于长期演进系统，包括：相同的PRACH配置集分别存储在基站和终端中; 当执行PRACH配置时，终端根据配置信息查询PRACH配置集，获取配置参数，和/或终端根据系统参数进行计算，获得配置参数。 通过使用本发明提供的方法设置，PRACH配置集可以为各种PRACH格式提供足够的密度类型，以满足不同系统负载的要求，同时可以为每种格式和密度的组合提供足够的版本类型， 降低基站的处理负荷，减少小区间干扰。

公开(公告)号：US20110019752A1

公开(公告)日：2011-01-27

申请号：US12922845

申请日：2009-02-12

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

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

IPC: H04L27/00

CPC classification number: H04W74/0866 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0073

Abstract: A method for mapping physical random access channel (PRACHs) is provided in the present invention, wherein W PRACHs have the same time domain location and the serial number of each PRACH is w=0, 1, 2, . . . , W−1. The method includes: mapping the PRACHs with the odd w numbers from high frequency to low frequency, or from low frequency to high frequency in a usable frequency band, mapping the PRACHs with the even w numbers from low frequency to high frequency, or from high frequency to low frequency in the usable frequency band. One PRACH occupies 6 continuous resource blocks in the frequency domain, and the frequency bands occupied by the two adjacent PRACHs in the frequency domain do not overlap, furthermore the same mapping process is used for each version number r. The PRACHs which need to be processed by the same station could be distributed evenly in the time domain, and at the same time the inter-cell interference of the second type PRACH could be reduced to the greatest extent through the present invention.

Abstract translation: 在本发明中提供了一种用于映射物理随机接入信道（PRACH）的方法，其中W个PRACH具有相同的时域位置，并且每个PRACH的序列号为w = 0,1,2。 。 。 ，W-1。 该方法包括：在可用频带中将来自高频到低频或从低频到高频的奇数w编号的PRACH映射到具有均匀w数的低频到高频或高频的PRACH 频率到可用频带的低频。 一个PRACH在频域中占据6个连续的资源块，并且频域中两个相邻的PRACH所占据的频带不重叠，而且每个版本号r使用相同的映射处理。 需要由同一台站处理的PRACH可以在时域上均匀分配，同时通过本发明可以最大程度地减少第二类PRACH的小区间干扰。

公开(公告)号：US20110007825A1

公开(公告)日：2011-01-13

申请号：US12812463

申请日：2008-12-30

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

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

IPC: H04L27/00

CPC classification number: H04J13/14 ,  H04J13/0062 ,  H04J13/22 ,  H04W74/00

Abstract: A Method for generation of Ncs set and a method for generation of random access preamble are disclosed. The method for generation of Ncs set comprises the following steps: determine an upper limit value Ncs_max of Ncs according to a maximum cell radius value which is required to be supported by a random access channel RACH, and select Ncs values which are less than or equal to the Ncs_max to be elements of an initial Ncs set; calculate a root sequence number Nr corresponding to each element in the initial Ncs set according to formula Nr=┌M/└Npre/Ncs┘┐; and delete elements in the initial Ncs set which have the same Nr value with other elements so as to generate a screening Ncs set in which each element has a different Nr value; if N, the number of the elements in the screening Ncs set, is greater than P, the number of maximum Ncs supported by the system, then delete N−P elements from the set so as to generate a final Ncs set; else regard the screening Ncs set as the final Ncs set; wherein, M is a preamble number required by each cell, and Npre is the length of preamble sequence.

Abstract translation: 公开了一种用于生成Ncs集的方法和用于生成随机接入前导码的方法。 用于生成Ncs集的方法包括以下步骤：根据需要由随机接入信道RACH支持的最大小区半径值确定Ncs的上限值Ncs_max，并选择小于或等于Ncs的Ncs个值 Ncs_max为初始Ncs集合的元素; 计算设定的根据式NR =┌M/└Npre/Ncs┘┐对应于初始的Ncs每个元素的根序列号NR; 并删除与其他元素具有相同Nr值的初始Ncs集合中的元素，以生成其中每个元素具有不同Nr值的筛选Ncs集合; 如果N，屏蔽Ncs设置的元素数大于P，系统支持的最大Ncs个数，则从集合中删除N-P个元素，以生成最终的Ncs集合; 否则将Ncs设置为最终Ncs集; 其中，M是每个小区所需的前导码，Npre是前导序列的长度。

公开(公告)号：US20110002401A1

公开(公告)日：2011-01-06

申请号：US12812369

申请日：2008-12-02

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

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

IPC: H04L27/00

CPC classification number: H04W74/002

Abstract: A method and an apparatus for constructing a random access channel of a wireless communication system, in which the method includes the following steps: setting a length of a preamble; setting a length of a cyclic prefix according to the length of the preamble; and setting a random access channel structure consisting of the preamble and the cyclic prefix. The random access channel designed by the method can be flexibly set to transmit in the UpPTS, and can satisfy the demand of a small coverage scenario in a better manner.

Abstract translation: 一种用于构建无线通信系统的随机接入信道的方法和装置，其中该方法包括以下步骤：设置前同步码的长度; 根据前导码的长度设置循环前缀的长度; 并设置由前导码和循环前缀组成的随机接入信道结构。 通过该方法设计的随机接入信道可以灵活设置为在UpPTS中传输，可以更好地满足小覆盖情况的需求。

公开(公告)号：US20100260080A1

公开(公告)日：2010-10-14

申请号：US12808309

申请日：2009-01-16

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

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

IPC: H04W72/12 ,  H04L5/14

CPC classification number: H04J3/1694 ,  H04L5/0053 ,  H04L5/0062 ,  H04L5/1469 ,  H04L27/2602 ,  H04L27/2607 ,  H04W74/002 ,  H04W74/0866

Abstract: A transmitting method of a signal on a random access channel in a wireless communication system, comprises the steps that: a terminal transmits a preamble on the random access channel with a set time length ahead of the end position of an uplink pilot time slot, and the length of the preamble is the length of two symbols without a cyclic prefix. Another transmitting method of a signal on a random access channel in a wireless communication system, comprises the steps that: a terminal transmits a cyclic prefix and a preamble on the random access channel with a set time length ahead of the end position of an uplink pilot time slot, and the length of the preamble is the length of two symbols without a cyclic prefix. The methods can avoid the interference of the preamble to the data of the uplink subframe, and can improve the coverage area of the random access channel and the work efficiency of the time division duplex system.

Abstract translation: 一种无线通信系统中的随机接入信道上的信号的发送方法，包括以下步骤：终端以上行导频时隙的结束位置之前的设定时间长度在所述随机接入信道上发送前导码，以及 前导码的长度是没有循环前缀的两个符号的长度。 在无线通信系统中的随机接入信道上的信号的另一发送方法包括以下步骤：终端在上行导频的结束位置之前的设定时间长度的随机接入信道上发送循环前缀和前导码 时隙，并且前导码的长度是没有循环前缀的两个符号的长度。 该方法可以避免前同步码对上行子帧数据的干扰，可以提高随机接入信道的覆盖面积和时分双工系统的工作效率。

公开(公告)号：US09060304B2

公开(公告)日：2015-06-16

申请号：US13635981

申请日：2010-12-29

Applicant: Bo Dai ,  Peng Hao ,  Yuxin Wang ,  Chunli Liang ,  Bin Yu

Inventor： Bo Dai ,  Peng Hao ,  Yuxin Wang ,  Chunli Liang ,  Bin Yu

IPC: H04W24/10 ,  H04W72/00 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W24/10 ,  H04W72/00 ,  H04W88/02 ,  H04W88/08

Abstract: A radio frame and method are provided for sending a sounding reference signal (SRS) in a mobile communication system, which is used to solve the problem of shortage of resources for sending the SRS in the mobile communication system. The method includes a user equipment (UE) sending the SRS to eNB in time-frequency resources corresponding to a guard space in the radio frame, wherein, the guard space is one or more of downlink to uplink guard space, uplink to downlink guard space, reserved subframes, or reserved idle resources. A device is also provided for sending the SRS, applied to the UE in the mobile communication system, wherein the device includes a radio frame construction module and a sounding reference signal transmission module.

Abstract translation: 提供一种用于在移动通信系统中发送探测参考信号（SRS）的无线电帧和方法，该移动通信系统用于解决在移动通信系统中用于发送SRS的资源不足的问题。 该方法包括：用户设备（UE）在与无线帧中的保护空间相对应的时间频率资源中向所述eNB发送所述SRS，其中，所述保护空间为下行链路到上行链路保护空间中的一个或多个，上行链路到下行链路保护空间 ，保留的子帧或保留的空闲资源。 还提供了一种用于发送在移动通信系统中应用于UE的SRS的设备，其中该设备包括无线电帧结构模块和探测参考信号传输模块。

公开(公告)号：US09001707B2

公开(公告)日：2015-04-07

申请号：US12674336

申请日：2008-10-23

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

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

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

CPC classification number: H04B7/2656 ,  H04L27/2602 ,  H04W48/12

Abstract: 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.

Abstract translation: 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

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

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

IPC: H04W4/00

CPC classification number: H04J13/0062 ,  H04J13/0003 ,  H04J13/22 ,  H04W72/0466 ,  H04W74/08

Abstract: 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.

Abstract translation: 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：US20130039233A1

公开(公告)日：2013-02-14

申请号：US13635981

申请日：2010-12-29

Applicant: Bo Dai ,  Peng Hao ,  Yuxin Wang ,  Chunli Liang ,  Bin Yu

Inventor： Bo Dai ,  Peng Hao ,  Yuxin Wang ,  Chunli Liang ,  Bin Yu

IPC: H04W28/26

CPC classification number: H04W24/10 ,  H04W72/00 ,  H04W88/02 ,  H04W88/08

Abstract: A radio frame and method are provided for sending a sounding reference signal (SRS) in a mobile communication system, which is used to solve the problem of shortage of resources for sending the SRS in the mobile communication system. The method includes a user equipment (UE) sending the SRS to eNB in time-frequency resources corresponding to a guard space in the radio frame, wherein, the guard space is one or more of downlink to uplink guard space, uplink to downlink guard space, reserved subframes, or reserved idle resources. A device is also provided for sending the SRS, applied to the UE in the mobile communication system, wherein the device includes a radio frame construction module and a sounding reference signal transmission module.

Abstract translation: 提供一种用于在移动通信系统中发送探测参考信号（SRS）的无线电帧和方法，该移动通信系统用于解决在移动通信系统中用于发送SRS的资源不足的问题。 该方法包括：用户设备（UE）在与无线帧中的保护空间相对应的时间频率资源中向所述eNB发送所述SRS，其中，所述保护空间为下行链路到上行链路保护空间中的一个或多个，上行链路到下行链路保护空间 ，保留的子帧或保留的空闲资源。 还提供了一种用于发送在移动通信系统中应用于UE的SRS的设备，其中该设备包括无线电帧结构模块和探测参考信号传输模块。