公开(公告)号：US20150215010A1

公开(公告)日：2015-07-30

申请号：US14609253

申请日：2015-01-29

Applicant: Samsung Electronics Co., Ltd. ,  Korea University Research and Business Foundation

Inventor： Byonghyo Shim ,  Sunho Park ,  Taeyoung Kim ,  Jiyun Seol

IPC: H04B7/04 ,  H04L25/02 ,  H04L1/00

CPC classification number: H04B7/0413 ,  H04B7/0851 ,  H04L1/005 ,  H04L1/0054 ,  H04L1/20 ,  H04L25/0202 ,  H04L25/023

Abstract: A method of receiving a signal by a receiver in a mobile communication system is provided. The method includes: receiving a reference signal from a transmitter; determining first channel information based on the received reference signal; receiving a data signal based on the first channel information; and determining second channel information based on the received data signal and the first channel information. Iterative channel estimation is performed to reduce channel estimation errors by determining errors of signals received from a turbo decoding unit and using symbol information as pilots even in subcarriers where the pilot signals are not transmitted, and to increase the accuracy of LLR calculation through an iteration process such as a detection and decoding process in comparison with the conventional technology, thereby increasing the reception performance of the turbo decoding unit and improving communication efficiency.

Abstract translation: 提供了一种在移动通信系统中由接收机接收信号的方法。 该方法包括：从发射机接收参考信号; 基于所接收的参考信号确定第一信道信息; 基于所述第一信道信息接收数据信号; 以及基于所接收的数据信号和所述第一信道信息来确定第二信道信息。 执行迭代信道估计以通过确定从turbo解码单元接收的信号的误差并且即使在不发送导频信号的子载波中使用符号信息作为导频来减少信道估计误差，并且通过迭代处理来提高LLR计算的精度 例如与常规技术相比的检测和解码过程，从而增加turbo解码单元的接收性能并提高通信效率。