Chinese telecom network vendor Huawei unveiled its Distributed Converged Cable Access Platform (CCAP) that saves 70 percent of hub space, 50 percent of power consumption and 80 percent of trunk fiber resource.
At the ANGACOM Exhibition in Cologne, Germany, Huawei also showcased the roadmap of the DOCSIS 3.1-capable distributed CCAP product that protects carrier investment.
Huawei said in a statement: “Compared with traditional CMTS, the distributed CCAP can converge with FTTx, saving 70 percent of hub space, 50 percent of power consumption and 80 percent of trunk fiber resource.”
The company said Huawei’s DOCSIS 3.1-based distributed CCAP solution employs Orthogonal Frequency Division Multiple Access (OFDMA) in the upstream to support simultaneous access of multiple users over a single coaxial cable, and broadcasts data to downstream users divided into different groups using the multiple modulation profile (MMP) technology, enhancing the spectrum efficiency.
Synergizing the key technologies of DOCSIS 3.1, such as physical-layer high-order modulation (16K QAM downstream and 4K QAM upstream) and low-density parity-check (LDPC) codec, distributed CCAP delivers 2.3 Gbit/s downstream and 1 Gbit/s upstream over a single channel, making it the highest line rate possible over coaxial cables in the industry.
Compared with DOCSIS 3.0, DOCSIS 3.1 is significantly enhanced in terms of spectrum efficiency and bandwidth, and is therefore able to deliver a smoother audiovisual experience with Internet services to users.
