Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CRC FOR DATA WITH MULTIPLE CHANNEL CODING SCHEMES
Document Type and Number:
WIPO Patent Application WO/2021/017101
Kind Code:
A1
Abstract:
Digital communication systems may use channel coding to detect and correct bit errors. With channel coding, an encoder at a transmitting device may add extra parity bits to raw data before modulation. A receiving device may use the extra parity bit to detect and correct errors. A cyclic redundancy check (CRC) is used to detect errors in digital data, using a hash function to detect accidental changes to raw data. A transmitting device may calculate CRC information and transmits the CRC information together with the data. A receiving device may calculate CRC information based on the data received and verify the data received. This disclosure is related to applying different channel coding schemes to different portions of data resulting in unequal error protection (UEP) and how to apply CRC to data with different channel coding scheme.

Inventors:
WU LIANGMING (US)
XU CHANGLONG (US)
LI JIAN (US)
SARKIS GABI (US)
SORIAGA JOSEPH BINAMIRA (US)
XU HAO (US)
Application Number:
PCT/CN2019/104698
Publication Date:
February 04, 2021
Filing Date:
September 06, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
QUALCOMM INC (US)
WU LIANGMING (CN)
XU CHANGLONG (CN)
LI JIAN (CN)
SARKIS GABI (US)
SORIAGA JOSEPH BINAMIRA (US)
XU HAO (CN)
International Classes:
H04L1/22; H04L1/00
Domestic Patent References:
WO2018205226A12018-11-15
Foreign References:
CN108632192A2018-10-09
CN101277165A2008-10-01
US20070116108A12007-05-24
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
Download PDF: