NTT DOCOMO trials of Open RAN . However , only a few operators have launched commercial Open RAN services .
“ How DOCOMO can help in introducing Open RAN to their commercial networks poses a high-level challenge ,” explains Abeta . “ We need to understand their current network and propose solutions for improving it , adding value to their network while reducing the total cost of ownership .”
Another challenge of 5G deployment is the variation in 5G frequencies and frequency bands across different countries . “ Allocating wider bandwidth in each country becomes a complex task due to band allocation issues . Scaling the Remote Unit ( RU ) also presents a challenge .
“ However ,” Abeta asserts , “ Thanks to the open interface , we can leverage solutions from any vendor . We are engaged in discussions with multiple RU vendors to address this situation and find suitable solutions .
“ Another challenge is the coexistence with existing vendor networks . The current vendors are not fully supportive of interoperability with the OREX solution , which requires time and effort to overcome .”
Working with 13 global partners As part of OREX , DOCOMO is collaborating with 13 global partners to make Open RAN a reality : AMD , DELL , Fujitsu , Hewlett Packard , Intel , Mavenir , NEC , NTT DATA , NVIDIA , Qualcomm , Red Hat , VMware and Windriver .
“ Our focus is on developing vRAN technology ,” Abeta explains . “ While the ultimate goal is to support full combinations ,
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