公开(公告)号：US08259598B2

公开(公告)日：2012-09-04

申请号：US11833329

申请日：2007-08-03

Applicant: Pierre Bertrand ,  Anand Dabak ,  Jing Jiang

Inventor： Pierre Bertrand ,  Anand Dabak ,  Jing Jiang

IPC: G08C15/00

CPC classification number: H04W74/0866 ,  H04J3/0682 ,  H04L27/2607

Abstract: Apparatus and method for accessing a wireless telecommunications network by transmitting a random access signal. The random access signal includes a cyclic prefix signal and a guard interval. The cyclic prefix signal and the guard interval are adapted to optimize random access channel coverage in a telecommunications cell. The disclosed method for transmitting a random access signal includes transmitting a cyclic prefix signal. The duration of the cyclic prefix signal is approximately the sum of a maximum round trip delay duration of the telecommunications cell and a maximum delay spread duration. The method further includes providing a guard interval. The guard interval duration being approximately the duration of the maximum round trip delay of the telecommunications cell.

Abstract translation: 通过发送随机接入信号来接入无线电信网络的装置和方法。 随机接入信号包括循环前缀信号和保护间隔。 循环前缀信号和保护间隔适于优化电信小区中的随机接入信道覆盖。 所公开的用于发送随机接入信号的方法包括发送循环前缀信号。 循环前缀信号的持续时间大约是电信小区的最大往返延迟持续时间和最大延迟扩展持续时间之和。 该方法还包括提供保护间隔。 保护间隔持续时间大约是电信小区最大往返延迟的持续时间。

公开(公告)号：US20120076063A1

公开(公告)日：2012-03-29

申请号：US13257858

申请日：2009-11-19

Applicant: Jing Jiang ,  Feng Bi ,  Yunfeng Sun

Inventor： Jing Jiang ,  Feng Bi ,  Yunfeng Sun

IPC: H04W4/06

CPC classification number: H04L27/2607 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0035 ,  H04W72/005

Abstract: The present invention discloses a multicast broadcast single frequency network subframe. The multicast broadcast single frequency network subframe is used as a physical resource of a user transmission data channel; in the multicast broadcast single frequency network subframe, except symbols of a physical downlink control channel, other symbols adopt the same cyclic prefix as subframe 0 in a local cell. The present invention also discloses a user data channel transmission method and device, and a user physical resource determining device. By using the subframe, the transmission method and device, and the determining device, the performance of the LTE-A system can be improved.

Abstract translation: 本发明公开了一种组播广播单频网子帧。 组播广播单频网络子帧用作用户传输数据信道的物理资源; 在组播广播单频网子帧中，除了物理下行链路控制信道的符号外，其他符号在本地小区中采用与子帧0相同的循环前缀。 本发明还公开了一种用户数据信道传输方法和装置，以及用户物理资源确定装置。 通过使用子帧，传输方法和设备以及确定设备，可以提高LTE-A系统的性能。

公开(公告)号：US08098745B2

公开(公告)日：2012-01-17

申请号：US11691549

申请日：2007-03-27

Applicant: Pierre Bertrand ,  Jing Jiang ,  Shantanu Kangude ,  Tarik Muharemovic

Inventor： Pierre Bertrand ,  Jing Jiang ,  Shantanu Kangude ,  Tarik Muharemovic

IPC: H04K1/10

CPC classification number: H04W74/08 ,  H04J13/00 ,  H04J13/14 ,  H04L5/0044 ,  H04L5/006 ,  H04L27/2602 ,  H04W74/002 ,  H04W74/0833

Abstract: Apparatus and methods for accessing a wireless telecommunications network by transmitting a random access signal. The random access signal includes a random access preamble signal selected from a set of random access preamble signals constructed by cyclically shift selected root CAZAC sequences. The random access signal may be one or more transmission sub-frames in duration, the included random access preamble sequence's length being extended with the signal to provide improved signal detection performance in larger cells and in higher interference environments. The random access signal may include a wide-band pilot signal facilitating base station estimation of up-link frequency response in some situations. Each of the plurality of available random access preamble sequences may be assigned a unique information value. The base station may use the information encoded in the random access preamble to prioritize responses and resource allocations. Random access signal collisions are dealt with by a combination of preamble code space randomness and back-off procedures.

Abstract translation: 通过发送随机接入信号来接入无线电信网络的装置和方法。 随机接入信号包括从由循环移位选择的根CAZAC序列构成的一组随机接入前同步信号中选择的随机接入前导信号。 随机接入信号可以是持续时间中的一个或多个传输子帧，所包含的随机接入前同步码序列的长度随信号扩展，以在较大的小区和较高的干扰环境中提供改善的信号检测性能。 随机接入信号可以包括宽带导频信号，有助于在某些情况下基站估计上行链路频率响应。 可以为多个可用随机接入前导码序列中的每一个分配唯一的信息值。 基站可以使用在随机接入前导码中编码的信息来优先处理响应和资源分配。 随机接入信号冲突由前导码空间随机性和退避程序的组合来处理。

公开(公告)号：US08064546B2

公开(公告)日：2011-11-22

申请号：US12139814

申请日：2008-06-16

Applicant: Jing Jiang ,  Tarik Muharemovic ,  Pierre Bertrand

Inventor： Jing Jiang ,  Tarik Muharemovic ,  Pierre Bertrand

IPC: H04L27/06 ,  H04L1/02

CPC classification number: H04B1/59

Abstract: This invention is a method for preamble detection with estimation of UE timing advance (TA) and channel quality information (CQI) which uses a sliding window to detect the preamble and estimate user timing advance and channel quality information. The window length is set to the cyclic prefix length of data transmission. A preamble detection threshold is computed semi-analytically according to noise sample statistics.

Abstract translation: 本发明是一种用于使用滑动窗口来检测前导码并估计用户定时提前和信道质量信息的UE定时提前（TA）和信道质量信息（CQI）的估计的前导码检测方法。 窗口长度设置为数据传输的循环前缀长度。 根据噪声样本统计，半解析地计算前导码检测阈值。

公开(公告)号：US07945842B2

公开(公告)日：2011-05-17

申请号：US11764876

申请日：2007-06-19

Applicant: Dake He ,  Ashish Jagmohan ,  Jing Jiang

Inventor： Dake He ,  Ashish Jagmohan ,  Jing Jiang

IPC: H03M13/00

CPC classification number: H03M13/1102 ,  H03M7/30 ,  H03M13/6312 ,  H03M13/6362

Abstract: A method of and system for rateless source coding are disclosed. The method comprises the steps of providing a set of low-density parity check (LDPC) codes, each of which accepts a range of data input lengths and a range of target compression rates; identifying a data input having a data input length; and identifying a desired compression rate. The method comprises the further steps of selecting one of said LDPC codes based on said data input length and desired compression rate; encoding the data input, using the selected LDPC code, to generate a sequence of data values; and puncturing some of said encoded data values to achieve the desired compression rate. Preferably, the encoding step includes the steps of generating a syndrome and a parity sequence from the data input, puncturing the generated parity sequence, and mixing a remaining portion of the data input with the punctuated parity sequence.

Abstract translation: 公开了一种用于无源源编码的方法和系统。 该方法包括以下步骤：提供一组低密度奇偶校验（LDPC）码，每一个码接受数据输入长度的范围和目标压缩率的范围; 识别具有数据输入长度的数据输入; 并识别期望的压缩率。 该方法包括以下步骤：基于所述数据输入长度和期望的压缩率来选择所述LDPC码之一; 使用所选择的LDPC码对数据输入进行编码，以生成数据值序列; 以及对某些所述编码的数据值进行穿孔以实现所需的压缩率。 优选地，编码步骤包括以下步骤：从数据输入产生校正子和奇偶校验序列，对所生成的奇偶校验序列进行穿孔，以及将输入的数据的剩余部分与标点奇偶校验序列进行混合。

公开(公告)号：US20100142476A1

公开(公告)日：2010-06-10

申请号：US12671389

申请日：2008-12-25

Applicant: Jing Jiang ,  Guanghui Yu ,  Hui Yu

Inventor： Jing Jiang ,  Guanghui Yu ,  Hui Yu

IPC: H04W72/04

CPC classification number: H04L5/0051 ,  H04B7/068

Abstract: A method for mapping downlink dedicated pilot frequencies of an extend cyclic prefix frame structure to physical resource blocks, applied in a long term evolution system, includes the following steps: the first downlink dedicated pilot frequency of each channel is mapped to the specific position of a physical resource block; other downlink dedicated pilot frequencies of the channel are mapping-processed according to the time domain interval, frequency domain interval and the preset regulation; the time domain interval is two or three OFDM symbols, the frequency domain interval is two sub-carriers of the same time domain. By defining the positions of pilot frequencies in the physical resource block, the public pilot frequency can obtain the information of all channels when a base station uses a beam pattern of more than four antennas. Making the channel information obtained by dedicated pilot frequencies contain the real channel information and the process-weight-value of a beam pattern, a UE does not need to obtain the transmission-weight-value of a beam pattern, such as to avoid the feedback cost of weight-values of a beam pattern.

Abstract translation: 一种用于将扩展循环前缀帧结构的下行专用导频频谱映射到长期演进系统中应用的物理资源块的方法，包括以下步骤：将每个信道的第一下行专用导频频率映射到 物理资源块 根据时域间隔，频域间隔和预设调节对信道的其他下行专用导频进行映射处理; 时域间隔是两个或三个OFDM符号，频域间隔是同一时域的两个子载波。 通过在物理资源块中定义导频的位置，当基站使用多于四个天线的波束模式时，公共导频可以获得所有信道的信息。 使专用导频获得的信道信息包含实数信道信息和波束模式的处理权重值，则UE不需要获得波束图案的发送权重值，例如避免反馈 波束图案的重量值成本。

公开(公告)号：US20090109908A1

公开(公告)日：2009-04-30

申请号：US12254064

申请日：2008-10-20

Applicant: Pierre BERTRAND ,  Zukang Shen ,  Jing Jiang

Inventor： Pierre BERTRAND ,  Zukang Shen ,  Jing Jiang

IPC: H04W28/16

CPC classification number: H04L5/0053 ,  H04L5/0051 ,  H04L5/0058 ,  H04W72/1284 ,  H04W72/1289

Abstract: A transmission of information from a secondary to a primary node occurs in a plurality of transmission instances which are logical time durations. A secondary node receives an allocation of periodic transmission instances for a scheduling request indicator (SRI) and an allocation if periodic transmission instances for a sounding reference signal (SRS). In a particular transmission instance allocated for the transmission of both SRS and SRI, the secondary node transmits the SRI without transmitting the SRS if the SRI indicates a pending scheduling request; otherwise, the secondary node transmits the SRS without transmitting the SRI.

Abstract translation: 信息从次级到主节点的传输发生在作为逻辑时间持续时间的多个传输实例中。 辅助节点接收用于调度请求指示符（SRI）的周期性传输实例的分配以及用于探测参考信号（SRS）的周期性传输实例的分配。 在分配用于传送SRS和SRI的特定传输实例中，如果SRI指示未决的调度请求，则辅助节点发送SRI而不发送SRS; 否则，辅助节点发送SRS而不发送SRI。

公开(公告)号：US07519898B2

公开(公告)日：2009-04-14

申请号：US11089486

申请日：2005-03-24

Applicant: Krishna Rama Narayanan ,  Jing Jiang ,  Nitin Ashok Nangare

Inventor： Krishna Rama Narayanan ,  Jing Jiang ,  Nitin Ashok Nangare

IPC: G06F11/00 ,  H03M13/00

CPC classification number: H03M13/1191 ,  H03M13/1515 ,  H03M13/2957 ,  H03M13/458

Abstract: A method of decoding linear block code uses an iterative message passing algorithm with a binary image of a parity check matrix of the linear block code, wherein the parity check matrix is adapted from one iteration to another based on the reliabilities of bits in the linear block code. The adaptation involves reducing a submatrix corresponding to the less reliable bits in the linear block code to a sparse nature before applying the message passing algorithm in each iteration. An apparatus that performs the method is also provided and several variations of the algorithm are also provided.

Abstract translation: 解码线性块码的方法使用具有线性块码的奇偶校验矩阵的二进制图像的迭代消息传递算法，其中基于线性块中的比特的可靠性，奇偶校验矩阵从一次迭代适应于另一迭代 码。 该适应涉及在每次迭代中应用消息传递算法之前，将对应于线性块代码中较不可靠比特的子矩阵减少为稀疏性。 还提供了执行该方法的装置，并且还提供了该算法的几种变型。

公开(公告)号：US20090040919A1

公开(公告)日：2009-02-12

申请号：US12185531

申请日：2008-08-04

Applicant: Tarik Muharemovic ,  Zukang Shen ,  Jing Jiang

Inventor： Tarik Muharemovic ,  Zukang Shen ,  Jing Jiang

IPC: H04J11/00

CPC classification number: H04L27/2602 ,  H04L5/0044 ,  H04L5/0048

Abstract: A transmission of information within a wireless cellular network may include a first and second group of samples. A first group of samples is created comprising at least a first and a last subgroup, wherein the last subgroup is same as the first subgroup. A second group of samples created. A transformed set of samples produced by jointly transforming the created first and second group with a discrete Fourier transform (DFT). The transformed set of samples is expanded to produce an expanded set, and the expanded set is transformed with an inverse discrete Fourier transform (IDFT) to produce an OFDM symbol with a fractional payload. The first group of samples is a reference signal (RS), which is known to the receiver before the transmission occurs, while the second group of samples is information data.

Abstract translation: 无线蜂窝网络内的信息传输可以包括第一和第二组样本。 创建包括至少第一和最后一个子组的第一组样本，其中最后一个子组与第一个子组相同。 第二组样本创建。 通过用离散傅立叶变换（DFT）联合变换所创建的第一组和第二组而产生的经变换的样本组。 经变换的样本集合被扩展以产生扩展集合，并且利用逆离散傅里叶变换（IDFT）来变换扩展集合以产生具有小数有效载荷的OFDM符号。 第一组样本是参考信号（RS），其在传输发生之前是接收机已知的，而第二组样本是信息数据。

公开(公告)号：US20090009409A1

公开(公告)日：2009-01-08

申请号：US12231804

申请日：2008-09-05

Applicant: James Li ,  Jing Jiang

Inventor： James Li ,  Jing Jiang

IPC: H01Q1/24 ,  H01Q1/38

CPC classification number: H01Q1/2291 ,  H01Q1/242 ,  H01Q1/36 ,  H01Q5/371 ,  H01Q5/40 ,  H01Q9/0464 ,  H01Q9/36 ,  H01Q21/28

Abstract: An antenna system includes first, second and third antennas that are arranged on a substrate. The first, second and third antennas include an arc-shaped element having a concave side and a convex side and a conducting element that extends substantially radially from a center of said concave side.

Abstract translation: 天线系统包括布置在基板上的第一，第二和第三天线。 第一，第二和第三天线包括具有凹面和凸面的弧形元件和从所述凹面的中心大致径向延伸的导电元件。