निम्नलिखित में से कौन सा संस्थान भारत में स्वदेशी 5Gi तकनीक विकसित करने वाले समूह का हिस्सा नहीं था?

What is the target year established by the Bharat 6G Vision for advanced telecommunications deployment?

In the context of next-generation communication systems, which of the following constitutes an infrastructural requirement uniquely critical for 5G deployment but not indispensable for earlier generations such as 2G, 3G, or 4G?