We use prefix-free code distribution matching (PCDM) for rate matching (RM) in some 5G New Radio (NR) deployment scenarios, realizing a wide range of information rates from 1.4 to 6.0 bit/symbol in fine granularity of 0.2 bit/symbol. We study the performance and implementation of the PCDM-based RM, in comparison with the low-density parity-check (LDPC)-based RM, as defined in the 5G NR standard. Simulations in the additive white Gaussian noise channel show that up to 2.16 dB gain in the signal-to-noise ratio can be obtained with the PCDM-based RM at a block error rate of 10-2 when compared to LDPC-based RM in the tested scenarios, potentially at a smaller hardware cost.

中文翻译：

---

5G新空口无前缀码分配匹配

我们在一些 5G 新空口 (NR) 部署场景中使用无前缀码分配匹配 (PCDM) 进行速率匹配 (RM)，以 0.2 比特/符号的细粒度实现从 1.4 到 6.0 比特/符号的广泛信息速率. 我们研究了基于 PCDM 的 RM 的性能和实现，与 5G NR 标准中定义的基于低密度奇偶校验 (LDPC) 的 RM 进行了比较。加性白高斯噪声通道中的仿真表明，与基于 LDPC 的 RM 相比，基于 PCDM 的 RM 可以获得高达 2.16 dB 的信噪比增益，块错误率为 10-2。测试场景，可能以较小的硬件成本。