EP3672085
DESIGN OF SHIFT VALUES FOR QUASI-CYCLIC LDPC CODES FOR 3GPP NEW RADIO
Zusammenfassung
[0001] The application relates to the design of parity-check matrices of quasi-cyclic LDPC codes for wireless communications, in particular in the framework of 3GPP 5G or 3GPP New Radio. Base matrices of dimensions 46x68 and 42x52 are provided together with shift coefficients for shift sizes Z=3*2^j, j=0, 1, 2, 3, 4, 5, 6 and 7 and Z=7*2^j, j=0, 1, 2, 3, 4 and 5, respectively. The resulting parity check matrices are optimized according to two or more approximate cycle extrinsic message degree (ACE) constraints.
Anmelder
ERICSSON TELEFON AB L M [SE]
Erfinder
SANDBERG SARA [SE]ANDERSSON MATTIAS [SE]BLANKENSHIP YUFEI [US]
Externe Quellen
Klassifikation
IPC-Klassen
H03M 13/03H03M 13/11H04L 1/00
CPC-Klassen
H03M 13/036H03M 13/116H03M 13/1168H03M 13/15H04L 1/00H04L 1/0041H04L 1/0042H04L 1/0045H04L 1/0047H04L 1/0057
AI: TelecommunicationsElectronics
warum
Ericsson 5G channel coding — H04L primary (NR PHY layer). H03M (digital information coding) is in the rule table as Electronics; here it acts as a secondary tag rather than the leading one — channel coding is fundamentally a telecom concern.