通用化的LDPC译码桶形移位器

• Format: Patent
• Language: Chinese
• Published: 03.11.2023
• Subjects: BASIC ELECTRONIC CIRCUITRY; CODE CONVERSION IN GENERAL; CODING; DECODING; ELECTRICITY

本发明公开了一种通用化的LDPC译码桶形移位器，主要包括MUX模块、Unshifted模块和muxreg模块，其中，MUX模块与cn_concat接口、vn_concat接口和first_half接口信号连接，MUX模块通过cn_concat接口接收校验节点的信息，通过vn_concat接口接收变量节点的信息；Unshifted模块与MUX模块信号连接，在first_half接口输入信号的控制下，Unshifted模块接收cn_concat接口或vn_concat接口的输入信号；muxreg模块包括三个级联的子模块，用于移位输出选择。本方案可以实现Vn和Cn数据不同位置的交织读写，效率高，占用资源少。 The invention discloses a generalized LDPC (Low Density Parity Check) decoding barrel shifter. The shifter mainly comprises an MUX module, a Unshifted module and a muxreg module, wherein the MUX module is in signal connection with a cn_concat interface, a vn_concat interface and a first_half interface, the MUX module receives information of a check node through the cn_concat interface, and receives information of a variable node through the vn_concat interface; the Unshift module is in signal connection with the MUX module, and under the control of an input signal of the first_half interface,the Unshift module receives an input signal of the cn_concat interface or the vn_concat interface; the muxreg module com