Spatial interleaver for MIMO wireless communication systems
    11.
    发明申请
    Spatial interleaver for MIMO wireless communication systems 审中-公开
    用于MIMO无线通信系统的空间交织器

    公开(公告)号:US20080232489A1

    公开(公告)日:2008-09-25

    申请号:US12007894

    申请日:2008-01-16

    IPC分类号: H04L27/28

    摘要: A method for transmission is provided to include demultiplexing information to be transmitted into a plurality of stream blocks, encoding each of the stream blocks according to a corresponding coding scheme to generate a plurality of encoded streams, interleaving the plurality of encoded streams in a bit-level to generate a plurality of bit-level interleaved streams, modulating each of the bit-level interleaved streams according to a corresponding modulation scheme to generate a plurality of modulated symbol streams, interleaving the plurality of modulated symbol streams in a symbol-level to generate a plurality of symbol-level interleaved streams, precoding the plurality of symbol-level interleaved streams according to a precoding scheme to generate a plurality of precoded streams, and transmitting the plurality of precoded streams via a plurality of antennas.

    摘要翻译: 提供了一种用于传输的方法,包括要发送到多个流块中的解复用信息,根据相应的编码方案对每个流块进行编码,以生成多个编码流, 以产生多个比特级交织流,根据相应的调制方案对每个比特级交织流进行调制以产生多个调制符号流,将符号级中的多个调制符号流进行交织以产生 多个符号级交织流,根据预编码方案预编码多个符号级交织流,以产生多个预编码流,以及经由多个天线发送多个预编码流。

    Method and apparatus to allocate resources for acknowledgments in communication systems
    12.
    发明申请
    Method and apparatus to allocate resources for acknowledgments in communication systems 审中-公开
    为通信系统中的确认分配资源的方法和装置

    公开(公告)号:US20080232307A1

    公开(公告)日:2008-09-25

    申请号:US12073811

    申请日:2008-03-10

    IPC分类号: H04Q7/00

    摘要: A method and apparatus for transmission between a plurality of units of user equipment and a base station in a wireless communication system. For each of the units of user equipment, a plurality of control channel elements are mapped to a plurality of downlink acknowledgement channel resources in accordance with a first mapping scheme, and the plurality of control channel elements are mapped to a plurality of uplink acknowledgement channel resources in accordance with a second mapping scheme. The first mapping scheme and the second mapping scheme may be different for different units of user equipment. Alternatively, the first mapping scheme and the second mapping scheme may change over time.

    摘要翻译: 一种在无线通信系统中在用户设备的多个单元和基站之间进行传输的方法和装置。 对于用户设备的每个单元,根据第一映射方案将多个控制信道元素映射到多个下行链路确认信道资源,并且将多个控制信道单元映射到多个上行链路确认信道资源 根据第二映射方案。 对于不同的用户设备单元,第一映射方案和第二映射方案可以不同。 或者,第一映射方案和第二映射方案可以随时间而改变。

    Methods and apparatus for channel interleaving in OFDM systems
    13.
    发明申请
    Methods and apparatus for channel interleaving in OFDM systems 有权
    OFDM系统中信道交织的方法和装置

    公开(公告)号:US20080307427A1

    公开(公告)日:2008-12-11

    申请号:US12155096

    申请日:2008-05-29

    IPC分类号: G06F9/50

    摘要: A method and apparatus for channel interleaving in a wireless communication system. In one aspect of the present invention, the data resource elements are assigned to multiple code blocks, and the numbers of data resource elements assigned to each code block are substantially equal. In another aspect of the present invention, a time-domain-multiplexing-first (TDM-first) approach and a frequency-domain-multiplexing-first (FDM-first) approach are proposed. In the TDM-first approach, at least one of a plurality of code blocks are assigned with a number of consecutive data carrying OFDM symbols. In the FDM-first approach, at least one of the plurality of code blocks are assigned with all of the data carrying OFDM symbols. Either one of the TDM first approach and the FDM-first approach may be selected in dependence upon the number of the code blocks, or the transport block size, or the data rate.

    摘要翻译: 一种用于无线通信系统中的信道交织的方法和装置。 在本发明的一个方面,将数据资源元素分配给多个代码块,分配给每个代码块的数据资源元素的数量基本相等。 在本发明的另一方面,提出了时域多路复用优先(TDM-first)方法和频域多路复用优先(FDM-first)方法。 在TDM第一方法中,多个码块中的至少一个被分配有携带OFDM符号的多个连续数据。 在FDM优先方法中,为所述多个码块中的至少一个分配有携带OFDM符号的所有数据。 可以根据代码块的数量或传输块大小或数据速率来选择TDM第一方法和FDM优先方法之一。

    Methods and apparatus to improve communication in a relay channel
    14.
    发明授权
    Methods and apparatus to improve communication in a relay channel 有权
    改善中继信道通信的方法和装置

    公开(公告)号:US08301956B2

    公开(公告)日:2012-10-30

    申请号:US12286453

    申请日:2008-09-30

    IPC分类号: H04L1/18 H04L1/24

    摘要: A system and method for relaying data communications in a Hybrid Automatic Repeat Request (HARQ) network. The system and method operable to receive a data communication packet from a base station during a first transmission time interval and simultaneously receive an acknowledgement signal from a subscriber station; and transmit a data communication packet to a subscriber station during a second transmission time interval and simultaneously transmit an acknowledgement signal to a base station.

    摘要翻译: 一种用于在混合自动重复请求(HARQ)网络中中继数据通信的系统和方法。 该系统和方法可操作以在第一传输时间间隔期间从基站接收数据通信分组,并同时从订户站接收确认信号; 并且在第二传输时间间隔期间向订户站发送数据通信分组,并且同时向基站发送确认信号。

    Method and apparatus of improved circular buffer rate matching for turbo-coded MIMO-OFDM wireless systems
    15.
    发明授权
    Method and apparatus of improved circular buffer rate matching for turbo-coded MIMO-OFDM wireless systems 有权
    用于涡轮编码的MIMO-OFDM无线系统的改进的循环缓冲器速率匹配的方法和装置

    公开(公告)号:US07986741B2

    公开(公告)日:2011-07-26

    申请号:US12216519

    申请日:2008-07-07

    IPC分类号: H04L5/12 H04L23/02

    摘要: Methods and apparatus for determining the starting points of redundancy version transmissions in a circular rate matching operation. At least one block of information bits to be transmitted are encoded to generate a plurality of coded bits, which are then segmented into a plurality of sub-blocks of coded bits. Each of the sub-blocks of coded bits is interleaved by using a certain interleaver. The interleaved coded bits of the plurality of sub-blocks are collected and filled into a circular buffer having a plurality of redundancy versions in the circular buffer, with each redundancy version corresponding to a starting bit index in the circular buffer. For each transmission, a subset of bits are selected from the circular buffer by selecting a redundancy version from among the plurality of redundancy version. The selected subset of bits are modulated by using a certain modulation scheme, and are transmitted via at least one antenna. The redundancy versions of the circular being determined such that in at least one pair of redundancy versions, the number of bits between the starting point of a first redundancy version and the starting point of a second redundancy version is not divisible by at least one modulation order.

    摘要翻译: 用于在循环速率匹配操作中确定冗余版本传输的起始点的方法和装置。 要发送的至少一个信息比特块被编码以产生多个编码比特,然后将其分割成多个编码比特子块。 编码比特的每个子块通过使用某个交织器进行交织。 多个子块的交织编码位被收集并填充到循环缓冲器中具有多个冗余版本的循环缓冲器,每个冗余版本对应于循环缓冲器中的起始位索引。 对于每个传输,通过从多个冗余版本中选择冗余版本,从循环缓冲器中选择位的子集。 所选择的比特的子集通过使用某种调制方案进行调制,并经由至少一个天线发送。 圆形的冗余版本被确定为使得在至少一对冗余版本中,第一冗余版本的起始点与第二冗余版本的起始点之间的位数不能被至少一个调制顺序整除 。

    Method and apparatus of improved circular buffer rate matching for turbo-coded MIMO-OFDM wireless systems
    16.
    发明申请
    Method and apparatus of improved circular buffer rate matching for turbo-coded MIMO-OFDM wireless systems 有权
    用于涡轮编码的MIMO-OFDM无线系统的改进的循环缓冲器速率匹配的方法和装置

    公开(公告)号:US20090086849A1

    公开(公告)日:2009-04-02

    申请号:US12216519

    申请日:2008-07-07

    IPC分类号: H04L27/36 H04L27/00 H04L27/38

    摘要: Methods and apparatus for determining the starting points of redundancy version transmissions in a circular rate matching operation. At least one block of information bits to be transmitted are encoded to generate a plurality of coded bits, which are then segmented into a plurality of sub-blocks of coded bits. Each of the sub-blocks of coded bits is interleaved by using a certain interleaver. The interleaved coded bits of the plurality of sub-blocks are collected and filled into a circular buffer having a plurality of redundancy versions in the circular buffer, with each redundancy version corresponding to a starting bit index in the circular buffer. For each transmission, a subset of bits are selected from the circular buffer by selecting a redundancy version from among the plurality of redundancy version. The selected subset of bits are modulated by using a certain modulation scheme, and are transmitted via at least one antenna. The redundancy versions of the circular being determined such that in at least one pair of redundancy versions, the number of bits between the starting point of a first redundancy version and the starting point of a second redundancy version is not divisible by at least one modulation order.

    摘要翻译: 用于在循环速率匹配操作中确定冗余版本传输的起始点的方法和装置。 要发送的至少一个信息比特块被编码以产生多个编码比特,然后将其分割成多个编码比特子块。 编码比特的每个子块通过使用某个交织器进行交织。 多个子块的交织编码位被收集并填充到循环缓冲器中具有多个冗余版本的循环缓冲器,每个冗余版本对应于循环缓冲器中的起始位索引。 对于每个传输,通过从多个冗余版本中选择冗余版本,从循环缓冲器中选择位的子集。 所选择的比特的子集通过使用某种调制方案进行调制,并经由至少一个天线发送。 圆形的冗余版本被确定为使得在至少一对冗余版本中,第一冗余版本的起始点与第二冗余版本的起始点之间的位数不能被至少一个调制顺序整除 。