3400-3800MHz cross border Frame structure

[Giorgi_Papava]

There is recommendation by CEPT which regulates cross border frame structure for 5G
ECC/REC/(20)03

In Bulgaria which frame are used by operators?

• Yettel
• A1
• Vivacom

[jojo72]

Can someone help me understand what is the idea behind the pattern (DDDDDDDSUU) with the 3ms shift? why it is needed?

[Giorgi_Papava]

To make it compatible use with LTE