公开(公告)号：US09084258B2

公开(公告)日：2015-07-14

申请号：US13820257

申请日：2011-06-28

申请人： Liujun Hu ,  Feng Bi ,  Changqing Zhu

发明人： Liujun Hu ,  Feng Bi ,  Changqing Zhu

IPC分类号： H04W72/04 ,  H04W16/10 ,  H04L5/00 ,  H04L27/26

CPC分类号： H04W72/0446 ,  H04L5/0003 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/1469 ,  H04L27/2601 ,  H04W16/10

摘要： The present application discloses a dynamic sub-frame configuration method in the TDD system. The method includes: in the case that the uplink and downlink sub-frame configuration of a cell and the uplink and downlink sub-frame configuration of its neighboring cell are different in the configuration of a sub-frame, a part of resources on the sub-frame are made to be silent for the cell, and the resources on the sub-frame corresponding to the resources not silenced on the sub-frame for cell are made to be silent for the neighboring cell; or, a part of resources on the sub-frame are made to be silent for the neighboring cell, and the resources on the sub-frame corresponding to the resources not silenced on the sub-frame for the neighboring cell are made to be silent for the cell. The present application further provides a dynamic sub-frame configuration apparatus in the TDD system. Not only can the problem that inter-cell interference is introduced during sub-frame switching in the TDD system be solved, but also the normal uplink and downlink measurement can be guaranteed, without affecting ACK/NACK feedback and HARQ process, and meantime the frequency spectrum utilization ratio is increased.

摘要翻译： 本申请公开了TDD系统中的动态子帧配置方法。 该方法包括：在小区的上行链路和下行链路子帧配置以及其相邻小区的上行链路和下行链路子帧配置在子帧的配置上不同的情况下，子部分的资源的一部分 对于小区而言，帧被保持为静音，并且对于小区的子帧上未被静默的资源对应的子帧上的资源对于邻近小区而言是静默的; 或者使子帧中的资源的一部分对于相邻小区而言是静默的，并且对于相邻小区的子帧上未被静默的资源对应的子帧上的资源被设置为静默 细胞。 本申请还提供了TDD系统中的动态子帧配置装置。 解决了在TDD系统的子帧切换期间引入小区间干扰的问题，而且可以保证正常的上行链路和下行链路测量，而不影响ACK / NACK反馈和HARQ进程，同时频率 频谱利用率提高。

公开(公告)号：US08458571B2

公开(公告)日：2013-06-04

申请号：US12812091

申请日：2008-04-30

申请人： Jin Xu ,  Yuanli Fang ,  Zhifeng Yuan ,  Song Li ,  Jun Xu ,  Liujun Hu

发明人： Jin Xu ,  Yuanli Fang ,  Zhifeng Yuan ,  Song Li ,  Jun Xu ,  Liujun Hu

IPC分类号： H03M13/00

CPC分类号： H04L1/0057 ,  H04L1/0052 ,  H04L1/0083

摘要： The present invention discloses a data transmission method and apparatus. The method comprises: segmenting data to be transmitted into information file segments with a length of Tb bits; performing forward error correction (FEC) coding for Tb information bit sequences composed of bits in same positions in a plurality of continuous information file segments to generate Tb check bit sequences, putting each bit of the check bit sequences in the same position in the check file segments as the corresponding information bit sequences; and transmitting each of the information file segments and check file segments according to their order; the number of bits contained in the information bit sequences being less than or equal to the maximum length of Kmax bits of the FEC-coded information bit sequences.

摘要翻译： 本发明公开了一种数据传输方法和装置。 该方法包括：将要发送的数据分割成具有Tb比特长度的信息文件段; 对由多个连续信息文件段中的相同位置的位构成的Tb信息比特序列执行前向纠错（FEC）编码，以产生Tb校验比特序列，将校验比特序列的每个比特放在校验文件中的相同位置 段作为相应的信息位序列; 并根据其顺序发送每个信息文件段和检查文件段; 包含在信息比特序列中的比特数小于或等于FEC编码的信息比特序列的最大比特的最大长度。

公开(公告)号：US20110096702A1

公开(公告)日：2011-04-28

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： H04L5/14

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。

公开(公告)号：US20100257427A1

公开(公告)日：2010-10-07

申请号：US12746181

申请日：2008-02-21

申请人： Jin Xu ,  Jun Xu ,  Zhifeng Yuan ,  Yuanli Fang ,  Song Li ,  Liujun Hu

发明人： Jin Xu ,  Jun Xu ,  Zhifeng Yuan ,  Yuanli Fang ,  Song Li ,  Liujun Hu

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/116 ,  H03M13/118 ,  H03M13/6362 ,  H03M13/6516

摘要： The present invention discloses a coding method, a coding device, a decoding method and a decoding device for low density generator matrix codes. Wherein the coding method includes: constructing the mother code set of the low density generator matrix code using P low density generator matrix codes of different code lengths at a code rate R0, wherein the mother code set of the low density generator matrix code has a uniform basic matrix Gbuniform, R 0 = k b n b , where kb is the row number of the basic matrix and nb is the column number of the basic matrix; obtaining the length L of an intermediate variable according to the relationship between the length K of the information bit sequence to be coded in the mother code set of the low density generator matrix code and the length L of the intermediate variable; obtaining an expansion factor zk for processing the basic matrix using the length L of the intermediate variable and the row number kb of the basic matrix, and obtaining a generator matrix Gldgc, by modifying and expanding the basic matrix using the expansion factor zk; and coding the information bit sequence to be coded using a matrix Gldgc(1:L,1:N+L−K) comprised of L rows and the first N+L−K columns of the generator matrix.

摘要翻译： 本发明公开了一种用于低密度发生器矩阵码的编码方法，编码装置，解码方法和解码装置。 其编码方法包括：以码率R0，利用不同码长的P个低密度发生器矩阵码构造低密度发生器矩阵码的母码组，其中低密度发生器矩阵码的母码组具有均匀 基本矩阵Gbuniform，R 0 = kbnb，其中kb是基本矩阵的行号，nb是基本矩阵的列数; 根据低密度发生器矩阵码的母码组中的要编码的信息比特序列的长度K与中间变量的长度L之间的关系，获得中间变量的长度L; 通过使用中间变量的长度L和基本矩阵的行数kb来获得用于处理基本矩阵的扩展因子zk，并且通过使用扩展因子zk修改和扩展基本矩阵来获得生成矩阵Gldgc; 并使用由L行构成的矩阵Gldgc（1：L，1：N + L-K）对发生器矩阵的第一N + L-K列进行编码的信息位序列进行编码。

公开(公告)号：US20150043395A1

公开(公告)日：2015-02-12

申请号：US14388332

申请日：2011-12-23

申请人： Bo Dai ,  Shuqiang Xia ,  Peng Hao ,  Yada Huang ,  Jianxun Ai ,  Liujun Hu

发明人： Bo Dai ,  Shuqiang Xia ,  Peng Hao ,  Yada Huang ,  Jianxun Ai ,  Liujun Hu

IPC分类号： H04W72/04 ,  H04L5/14 ,  H04L5/00

CPC分类号： H04W72/0453 ,  H04L5/0037 ,  H04L5/0055 ,  H04L5/14

摘要： Provided are a method and apparatus for data transmission. In the method, frequency spectrum aggregation is performed on multiple first frequency spectrums corresponding to multiple systems; and data are transmitted on a second frequency spectrum formed through the frequency spectrum aggregation performed on the multiple first frequency spectrums. Through the technical solution provided, the frequency spectrum aggregation of multiple systems is implemented, and the frequency spectrum utilization of a communication system is improved.

摘要翻译： 提供了一种用于数据传输的方法和装置。 在该方法中，对与多个系统相对应的多个第一频谱执行频谱聚合; 并且在通过在多个第一频谱上执行的频谱聚合形成的第二频谱上发送数据。 通过提供的技术方案，实现了多个系统的频谱聚合，提高了通信系统的频谱利用率。

公开(公告)号：US08527830B2

公开(公告)日：2013-09-03

申请号：US12746756

申请日：2008-04-16

申请人： Jin Xu ,  Jun Xu ,  Zhifeng Yuan ,  Yuanli Fang ,  Song Li ,  Liujun Hu

发明人： Jin Xu ,  Jun Xu ,  Zhifeng Yuan ,  Yuanli Fang ,  Song Li ,  Liujun Hu

IPC分类号： H03M13/00

CPC分类号： H03M13/116 ,  H03M13/118 ,  H03M13/6362 ,  H03M13/6516

摘要： An encoding method, encoding device, decoding method and decoding device for low density generator matrix codes (LDGC) are disclosed. Wherein, the encoding method comprises: construct an LDGC mother code set using P LDGC with code rate R0 and different code lengths, wherein the LDGC mother code set has a uniform basic matrix Gbuniform wherein, R 0 = k b n b , kb denotes the number of rows and nb denotes the number of columns in the basic matrix; obtain length L of an intermediate variant according to length K of an information bit sequence to be encoded in the LDGC mother code set; modify and expand the basic matrix to obtain a generator matrix Gldgc using the length L of the intermediate variant and the number kb of rows in the basic matrix; and encode the information bit sequence to be encoded using a matrix Gldgc (1:L,1:N+L−K) composed of L rows and the front N+L−K columns of the generator matrix, wherein N denotes the length of the encoded information.

摘要翻译： 公开了一种用于低密度发电机矩阵码（LDGC）的编码方法，编码装置，解码方法和解码装置。 其编码方法包括：使用代码率R0和不同代码长度的P LDGC构建LDGC母码集，其中LDGC母码组具有均匀的基本矩阵，其中，R 0 = kbnb，kb表示行数 而nb表示基本矩阵中的列数; 根据要编码在LDGC母码组中的信息比特序列的长度K获得中间变体的长度L; 修改和扩展基本矩阵，以使用中间变体的长度L和基本矩阵中的行的数量kb来获得生成矩阵Gldgc; 并使用由L行组成的矩阵Gldgc（1：L，1：N + L-K）对生成矩阵的前N + L-K列进行编码的信息比特序列进行编码，其中，N表示编码信息的长度。

公开(公告)号：US20130155917A1

公开(公告)日：2013-06-20

申请号：US13820257

申请日：2011-06-28

申请人： Liujun Hu ,  Feng Bi ,  Changqing Zhu

发明人： Liujun Hu ,  Feng Bi ,  Changqing Zhu

IPC分类号： H04W72/04

CPC分类号： H04W72/0446 ,  H04L5/0003 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/1469 ,  H04L27/2601 ,  H04W16/10

摘要： The present application discloses a dynamic sub-frame configuration method in the TDD system. The method includes: in the case that the uplink and downlink sub-frame configuration of a cell and the uplink and downlink sub-frame configuration of its neighboring cell are different in the configuration of a sub-frame, a part of resources on the sub-frame are made to be silent for the cell, and the resources on the sub-frame corresponding to the resources not silenced on the sub-frame for cell are made to be silent for the neighboring cell; or, a part of resources on the sub-frame are made to be silent for the neighboring cell, and the resources on the sub-frame corresponding to the resources not silenced on the sub-frame for the neighboring cell are made to be silent for the cell. The present application further provides a dynamic sub-frame configuration apparatus in the TDD system. Not only can the problem that inter-cell interference is introduced during sub-frame switching in the TDD system be solved, but also the normal uplink and downlink measurement can be guaranteed, without affecting ACK/NACK is feedback and HARQ process, and meantime the frequency spectrum utilization ratio is increased.

摘要翻译： 本申请公开了TDD系统中的动态子帧配置方法。 该方法包括：在小区的上行链路和下行链路子帧配置以及其相邻小区的上行链路和下行链路子帧配置在子帧的配置上不同的情况下，子部分的资源的一部分 对于小区而言，帧被保持为静音，并且对于小区的子帧上未被静默的资源对应的子帧上的资源对于邻近小区而言是静默的; 或者使子帧中的资源的一部分对于相邻小区而言是静默的，并且对于相邻小区的子帧上未被静默的资源对应的子帧上的资源被设置为静默 细胞。 本申请还提供了TDD系统中的动态子帧配置装置。 解决TDD系统中子帧切换期间引入小区间干扰的问题不仅可以保证正常的上行链路和下行链路测量，而且不影响ACK / NACK的反馈和HARQ过程，同时 频谱利用率提高。

公开(公告)号：US20110239075A1

公开(公告)日：2011-09-29

申请号：US12663050

申请日：2008-02-28

申请人： Jun Xu ,  Zhifeng Yuan ,  Liujun Hu

发明人： Jun Xu ,  Zhifeng Yuan ,  Liujun Hu

IPC分类号： H04L1/18 ,  G06F11/14

CPC分类号： H04L1/007 ,  H03M13/116 ,  H03M13/1185 ,  H03M13/255 ,  H03M13/356 ,  H03M13/618 ,  H03M13/6306 ,  H03M13/6393 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/1812

摘要： The present invention discloses a method for channel coding and modulation mapping in HARQ of the LDPC code, comprising: performing structural LDPC encoding of an information bit sequence with a length of K input by a channel encoder, and sending a generated codeword to a HARQ buffer; rearranging codeword bits of a LDPC HARQ mother code in the HARQ buffer, and sequentially selecting codeword bits to generate a binary sequence of a HARQ packet; mapping codeword bits of the HARQ packet to a constellation, and high-order bits in encoding blocks of the HARQ packet being mapped to high reliability bits in the constellation. The present invention provides the LDPC codeword with the maximal constellation gain, so that the LDPC HARQ channel encoding has the optimal performance.

摘要翻译： 本发明公开了一种用于LDPC码的HARQ中的信道编码和调制映射的方法，包括：对信道编码器输入的长度为K的信息比特序列执行结构LDPC编码，并将生成的码字发送到HARQ缓冲器 ; 在HARQ缓冲器中重新排列LDPC HARQ母码的码字比特，并且顺序地选择码字比特以生成HARQ分组的二进制序列; 将HARQ分组的码字比特映射到星座，并且HARQ分组的编码块中的高位被映射到星座中的高可靠性比特。 本发明提供具有最大星座增益的LDPC码字，使得LDPC HARQ信道编码具有最佳性能。

公开(公告)号：US20100185915A1

公开(公告)日：2010-07-22

申请号：US12666454

申请日：2008-06-02

申请人： Jun Xu ,  Jin Xu ,  Zhifeng Yuan ,  Yuanli Fang ,  Liujun Hu

发明人： Jun Xu ,  Jin Xu ,  Zhifeng Yuan ,  Yuanli Fang ,  Liujun Hu

IPC分类号： H03M13/07 ,  G06F11/10

CPC分类号： H03M13/3761 ,  H03M13/11

摘要： A method and system for encoding the low density generator matrix code are disclosed. The encoding method includes the following steps: S102, constructing a generator matrix Gldgc with L rows and N+L−K columns, wherein a phalanx Gldgc(1:L, 1:L) which consists of L rows and the first L columns of the generator matrix Gldgc is an upper triangular matrix or a lower triangular matrix, the K, L and N being positive integers, and K

摘要翻译： 公开了一种用于编码低密度发生器矩阵码的方法和系统。 该编码方法包括以下步骤：S102，构造具有L行和N + L-K列的生成矩阵Gldgc，其中由L行和第L列组成的指骨Gldgc（1：L，1：L） 生成矩阵Gldgc是上三角矩阵或下三角矩阵，K，L和N是正整数，K

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。