Bad frame indicator for radio-telephone receivers in GSM mobile systems
作者： Faraz Faheem , Helena Deirdre O'Shea , Mohammad J. Mohseni , Roland Rick
DOI:
关键词:
摘要: A system and method for bad frame indication of a speech includes estimating signal-to-noise ratio (SNR) checking cyclic redundancy code (CRC) value the frame. When fails CRC error detection or SNR is below pre-specified value, (BFI) flag set. passes above receive signal quality metric checked against high threshold and, if need be, low threshold. The BFI previous when current between thresholds. set according to SNR, metrics, flag.
google.de 参考文章(10)
Harri Jokinen, Jukka Ranta, Ilkka Heikkila, Enhanced decoder for a radio telephone ,(1994)
Jae-Heung Yeom, Jae-Min Ahn, Young Ky Kim, Seung-Joo Maeng, Device and method of continuous outer-loop power control in dtx mode for cdma mobile communication system ,(2000)
Niels Vinggaard, Arvind S. Arora, Error detector circuit for digital receiver using variable threshold based on signal quality ,(1996)
T. Hindelang, W. Xu, C. Erben, Quality enhancement of coded and corrupted speeches in GSM mobile systems using residual redundancy international conference on acoustics, speech, and signal processing. ,vol. 1, pp. 259- 262 ,(1997) , 10.1109/ICASSP.1997.599618
Yue Chen, Bad frame indicator for radio telephone receivers ,(2000)
Wilfrid P. LeBlanc, Vishu R. Viswanathan, Christine N. Liu, Error detection and error concealment of convolutionally encoded data ,(1997)
Mark Burton, Stephen Truelove, Method of identifying a frame for erasure in a digital data transmission system ,(1999)
Ken Stewart, Lee M. Proctor, Thomas J. Kundmann, Sandra L. Wood, Method and apparatus for detecting bad frames of information in a communication system ,(1994)
Stephen Truelove, Mark Burton, Frame erasure for digital data transmission systems ,(1998)
Wen Xu, Christian Erben, Thomas Hindelang, Method and device for frame error detection ,(1999)