知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN107113006A 完全并行turbo解码 有权

完全并行turbo解码
摘要：
检测电路执行turbo检测处理，以从接收到的信号恢复数据码元帧，所述帧的所述数据码元在传输期间已经受具有所述接收到的信号中的所述帧的所述数据码元依赖于可以表示为具有多个格栅级的格栅的一个或多个超前数据码元的效果的马尔科夫过程作用。所述检测电路包括多个处理元件，所述处理元件中的每一个与根据所述马尔科夫过程表示所述帧的所述数据码元的依赖性的所述格栅级之一关联，所述处理元件中的每一个被配置为：接收与关联于所述格栅级的一个或多个数据码元对应的一个或多个软判决值，并且所述处理元件中的一个或多个中的每一个被配置为：在一个时钟周期中，接收表示先验前向状态度量先验后向状态度量的定点数据以及表示对于所述格栅级正检测用于所述一个或多个数据码元的先验软判决值的定点数据。对于所述turbo检测处理的多个时钟周期中的每一个，所述检测电路被配置为：对于表示所述格栅级的所述处理元件中的每一个，处理用于对于与所述处理元件关联的所述格栅级正检测所述一个或多个数据码元的所述先验信息，并且提供与所述一个或多个数据码元对应的所述外在软判决值，以用于所述turbo检测处理的下一时钟周期。
摘要（英）：

A detection circuit performs a turbo detection process to recover a frame of data symbols from a received signal, the data symbols of the frame having been effected, during transmission, by a Markov process with the effect that the data symbols of the frame in the received signal are dependent one or more preceding data symbols which can be represented as a trellis having a plurality of trellis stages. The detection circuit comprises a plurality of processing elements, each of the processing elements is associated with one of the trellis stages representing the dependency of the data symbols of the frame according to the Markov process and each of the processing elements is configured to receive one or more soft decision values corresponding to one or more data symbols associated with the trellis stage, and each of one or more of the processing elements is configured, in one clock cycle to receive fixed point data representing a priori forward state metrics a priori backward state metrics, and fixed point data representing a priori soft decision values for the one or more data symbols being detected for the trellis stage. For each of a plurality of clock cycles of the turbo detection process, the detection circuit is configured to process, for each of the processing elements representing the trellis stages, the a priori information for the one or more data symbols being detected for the trellis stage associated with the processing element, and to provide the extrinsic soft decision values corresponding to the one or more data symbols for a next clock cycle of the turbo detection process.

公开/授权文献
0/0