虚拟或云无线接入网 (RAN)
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芯片巨头,角逐小市场
半导体行业观察· 2025-12-08 03:04
Core Viewpoint - The article discusses the challenges and developments in the virtual or cloud Radio Access Network (RAN) sector, particularly focusing on the dominance of Intel and the emerging competition from NVIDIA and Google’s TPU technology [1][2][3]. Group 1: Intel's Dominance and Challenges - Intel has been the sole supplier of general-purpose chips for RAN, contradicting the open RAN movement's goal of supplier diversification [1] - Transitioning from Intel to competitors like AMD has proven difficult, and the emergence of AI-RAN further complicates the landscape [1] - NVIDIA's AI-RAN aims to replace traditional RAN custom chips and CPUs with GPUs, claiming significant improvements in spectrum efficiency [1] Group 2: Google's TPU Developments - Google’s TPU has gained attention as a low-cost alternative to NVIDIA's GPUs, with costs estimated to be between 50% to 10% of equivalent NVIDIA GPU capabilities [2] - The latest TPU version, Gemini 3, reportedly outperforms competitors like OpenAI in various benchmarks, despite the common belief that LLM development requires GPUs [2] Group 3: Market Dynamics and Competition - The global RAN product market was valued at approximately $35 billion last year, a fraction of Alphabet's total sales, indicating that RAN may not be a priority for Google [3] - NVIDIA has invested $1 billion to enter the RAN market, while Google has focused on easier-to-deploy parts of the 5G core network [4] - The complexity of adapting existing software to TPU platforms poses challenges for major RAN software developers like Ericsson, Nokia, and Samsung [4][5] Group 4: Developer Ecosystem and Future Prospects - NVIDIA's CUDA platform is seen as a universal alternative for AI workloads, while Google’s TPU lacks a similar developer ecosystem [5] - Future RAN strategies from Google may still involve using CPUs from Intel, AMD, or Arm, as they differ from the x86 architecture [5] - Despite the challenges, Nokia remains optimistic that RAN software developed for NVIDIA's CUDA can be deployed on other GPUs with minimal modifications [6] Group 5: Industry Perspectives on AI-RAN - Telecom operators, including Vodafone and Telus, do not view GPUs as essential for AI-RAN, and major companies like Ericsson and Samsung continue to emphasize AI within their existing Intel-based virtual RAN strategies [6] - NVIDIA faces the challenge of convincing telecom operators of the cost-effectiveness of GPUs compared to other chip platforms, highlighting the potential weakness of its market dominance [6]