Vector signaling code communications systems rely on group transmission of code symbols
using multiple signaling chan nels that may have differing propagation characteristics …

Vector signaling code communications systems rely on group transmission of code symbols
using multiple signaling channels that must be actively monitored and adjusted to minimize …

BACKGROUND A communication channel, whether it is a fiber optic chan nel, a co-axial
channel, a wired channel, a wireless channel, or a bus connecting locations in a system …

A system and method are provided for generating bit log likelihood ratio (LLR) values for two-
layered Quadrature Phase-Shift Keying (QPSK) turbo decoding in a wireless …

A decoder for a layered modulation system can be configured to independently and
concurrently decode each of a base and enhancement layer. The base layer decoder and …

A transmitting unit divides a transmit data into a plurality of code blocks, and encodes each
of the plurality of code blocks to generate a transmission signal. The transmitting unit trans …

QUALCOMM INCORPORATED ing optimal threshold values for channel estimation in a
S775 MOREHOUSE DR. layered-modulation wireless communication system. A SAN …

In recent years, in a multicarrier mobile communication system, a system for accessing a
large Volume of data at a high speed has been developed. In addition, in the multicarrier …

US PATENT DOCUMENTS 6,694,474 B2 2/2004 Ramprashadet al. 6,771,772 B1 8, 2004
Tanrikulu 6,854,082 B1 2, 2005 Rhee 7, 190,732 B2 3/2007 Chung et al. 7,231,577 B2 …

An error correcting decoder is typically implemented, eg, in a network system, to reduce
communication errors. One type of an error correcting decoder is an iterative error cor …