公开(公告)号：US08209575B2

公开(公告)日：2012-06-26

申请号：US12244660

申请日：2008-10-02

申请人： Eko N. Onggosanusi ,  Yan Hui ,  Anand Ganesh Dabak ,  Gibong Jeong

发明人： Eko N. Onggosanusi ,  Yan Hui ,  Anand Ganesh Dabak ,  Gibong Jeong

IPC分类号： H08C25/02 ,  H04L1/08

CPC分类号： H04L1/06 ,  H04L1/1819

摘要： A Hybrid Automatic Retransmission Request (H-ARQ) technique is provided for Multi-Input Multi-Output (MIMO) systems. The technique changes the basis (V) upon retransmission, which helps reduce the error probability upon retransmission. This basis hopping technique provides for improved performance gain without significant increase in design complexity. In one embodiment, communication device (100) includes a receiver section (114) for receiving an acknowledgment (ACK) or a non-acknowledgment (NACK) signal in response to information transmitted by the transmitter section of the communication device. If a NACK is received, a new basis is selected from a set of basis stored in a basis set unit (110). The new basis that is selected is then used by a linear transformation unit (106) in the retransmission of the information.

摘要翻译： 为多输入多输出（MIMO）系统提供混合自动重传请求（H-ARQ）技术。 该技术在重发时改变基础（V），这有助于减少重传时的错误概率。 该基础跳频技术提供了改进的性能增益，而不会显着提高设计复杂度。 在一个实施例中，通信设备（100）包括用于响应于由通信设备的发射机部分发送的信息而接收确认（ACK）或非确认（NACK）信号的接收机部分（114）。 如果接收到NACK，则从存储在基本设置单元（110）中的一组基础中选择新的基础。 所选择的新基准然后由线性变换单元（106）在信息的重传中使用。

公开(公告)号：US07289567B2

公开(公告)日：2007-10-30

申请号：US10108881

申请日：2002-03-28

申请人： Brian K. Classon ,  Amitava Ghosh

发明人： Brian K. Classon ,  Amitava Ghosh

IPC分类号： H04K1/10 ,  H04L27/28 ,  H04L1/18 ,  H08C25/02

CPC分类号： H04L1/1845 ,  H04L1/1819 ,  H04L1/1874

摘要： An apparatus and method for transmitting and receiving data, wherein retransmissions of information can be a different size from the initial transmission. The invention utilizes a partial Chase encoder 306 to truncate or expand data depending on the availability of channel resources for retransmission. A partial Chase combiner 314 processes the received demodulated data based solely on the number of codes and modulation received (i.e., predetermined, with no additional signaling required). If the received retransmission is smaller than the first transmission, only a portion of the soft bits are combined. If the retransmission is larger than the first transmission, some values of the stored first transmission are combined with more than one received soft bit in the retransmission.

摘要翻译： 一种用于发送和接收数据的装置和方法，其中信息的重传可以与初始传输不同。 本发明利用部分追逐编码器306根据用于重传的信道资源的可用性来截断或扩展数据。 部分追逐组合器314仅基于所接收的代码和调制的数量（即，预定的，不需要额外的信号）处理接收的解调数据。 如果接收到的重传小于第一次传输，则只有一部分软比特被组合。 如果重传大于第一传输，则在重发中将所存储的第一传输的一些值与多于一个的接收到的软比特组合。