公开(公告)号：US07961795B2

公开(公告)日：2011-06-14

申请号：US11665782

申请日：2004-10-29

申请人： Zesong Fei ,  Lei Wan ,  Jingming Kuang

发明人： Zesong Fei ,  Lei Wan ,  Jingming Kuang

IPC分类号： H04K1/10

CPC分类号： H04L25/0236 ,  H04L1/0047 ,  H04L1/1607 ,  H04L1/1812 ,  H04L25/023 ,  H04L25/03171 ,  H04L25/03324

摘要： The channel estimation for a current data block is based on a previous data block, where the two data blocks are based on common information. Data symbol hypotheses of the previous data block can be forwarded to a channel estimator and used as known reference symbols when estimating the channel response for the current block. Alternatively, a combination of the data symbol hypotheses and preliminary data symbol estimates of the current block are used as reference symbols in a refined channel estimation for the current block. Data bit hypotheses of the previous block can also be input as a priori data in a preliminary demodulation of the current block. The demodulator output is used as reference data in a refined channel estimation for the current block. The technology is well-adapted for use in connection with Hybrid ARQ.

摘要翻译： 当前数据块的信道估计基于先前的数据块，其中两个数据块基于公共信息。 当估计当前块的信道响应时，先前数据块的数据符号假设可被转发到信道估计器并用作已知参考符号。 或者，将当前块的数据符号假设和初步数据符号估计的组合用作当前块的精细信道估计中的参考符号。 在当前块的初步解调中，先前块的数据比特假设也可以作为先验数据输入。 解调器输出用作当前块的精细信道估计中的参考数据。 该技术适用于混合ARQ。

公开(公告)号：US20080192842A1

公开(公告)日：2008-08-14

申请号：US11665782

申请日：2004-10-29

申请人： Zesong Fei ,  Lei Wan ,  Jingming Kuang

发明人： Zesong Fei ,  Lei Wan ,  Jingming Kuang

IPC分类号： H04K1/10 ,  H03K9/00

CPC分类号： H04L25/0236 ,  H04L1/0047 ,  H04L1/1607 ,  H04L1/1812 ,  H04L25/023 ,  H04L25/03171 ,  H04L25/03324

摘要： The invention relates to channel estimation in a receiver. The channel estimation for a current data block is based on a previous data block, where the two data blocks are based on common information. Data symbol hypotheses of the previous data block can be forwarded to a channel estimator and used as known reference symbols when estimating the channel response for the current block. Alternatively, a combination of the data symbol hypotheses and preliminary data symbol estimates of the current block are used as reference symbols in a refined channel estimation for the current block. Data bit hypotheses of the previous block can also be input as a priori data in a preliminary demodulation of the current block. The demodulator output is used as reference data in a refined channel estimation for the current block. The invention is well-adapted for usage in connection with Hybrid ARQ.

摘要翻译： 本发明涉及一种接收机中的信道估计。 当前数据块的信道估计基于先前的数据块，其中两个数据块基于公共信息。 当估计当前块的信道响应时，先前数据块的数据符号假设可被转发到信道估计器并用作已知参考符号。 或者，将当前块的数据符号假设和初步数据符号估计的组合用作当前块的精细信道估计中的参考符号。 在当前块的初步解调中，先前块的数据比特假设也可以作为先验数据输入。 解调器输出用作当前块的精细信道估计中的参考数据。 本发明适用于与混合ARQ有关的使用。