The 700 MHz band, often called the "diamond" band, is widely used in 4G and 5G mobile networks due to its excellent signal transmission capabilities.

Re-auction of the 700 MHz band

The Minister of Science and Technology recently issued a plan to re-organize the auction of radio frequency rights for the B2-B2' spectrum blocks. From the date of public announcement, organizations wishing to participate have 30 days to submit their registration documents to the Ministry (Telecommunication Authority) through online public service systems, postal services, or direct submission. Late submissions will not be accepted or processed.

In late December 2024, the Radio Frequency Department announced the auction of several spectrum blocks, including:

B1-B1' block (703-713 MHz and 758-768 MHz) with a starting price of approximately $82.3 million.

B2-B2' block (713-723 MHz and 768-778 MHz) with the same starting price of approximately $82.3 million.

B3-B3' block (723-733 MHz and 778-788 MHz) with the same starting price of approximately $82.3 million.

Why the 700 MHz band is called the ‘diamond’ band

The 700 MHz band holds immense commercial value due to its vital role in developing 4G and 5G networks. Its superior signal propagation characteristics enable mobile network operators to offer affordable services to users.

In March 2025, the Ministry announced that the planned auction for the B2-B2' block did not proceed as scheduled due to an insufficient number of qualified participants. By the deadline (5:00 p.m. on February 18, 2025), three companies submitted registration documents, but only one met the deposit requirements by the final deadline of February 20, 2025.

As a result, in accordance with legal regulations, the National Partnership Auction Company No. 5 decided not to organize the auction of radio frequency rights for the B2-B2' block due to the lack of sufficient qualified participants.

History and importance of the 700 MHz band

Before being auctioned, the 700 MHz band was previously allocated for analog television broadcasting. However, following Vietnam’s transition to digital terrestrial television, the band was released and reassigned to mobile network operators for telecommunications services.

Internationally, the 700 MHz band is widely used in 4G and 5G networks to optimize speed and coverage. Its ability to penetrate obstacles like walls and tall buildings makes it ideal for improving signal coverage, especially in rural and remote areas.

While higher frequency bands may offer faster data speeds, they require dense infrastructure investments. In contrast, the 700 MHz band, with its wide coverage and efficiency, reduces network deployment costs and is ideal for providing stable services in densely populated urban areas.

Due to its flexibility and compatibility with various network generations (3G, 4G, and 5G), mobile carriers are eager to acquire this "diamond" band to enhance coverage, particularly in rural and mountainous regions.

Thai Khang