Chanho Shin

In Korea, the '5G Rural Community Joint Network' is being promoted. I will answer you based on that 5G roaming project.
※ Answered by Minkyu Kang, Radio Management Division in CRMS.

1. What network that Korean Mobile Operators sharing between operators (passive sharing, active sharing, another parameters?)
 ○ Since the sharing method is through automatic roaming, it can be considered as an active sharing.

2. Can you provide a block diagram of the sharing network? Is this sharing only for the remote area BTS?
 ○ Please refer to an image here(https://image.newdaily.co.kr/site/data/img/2021/04/15/2021041500062_0.png), which is distributed by the official press release.
    <5G service diagram based on MOCN* method>
    * MOCN(Multi Operator Core Network) method : Joint using other operator’s base stations
 ○ Only rural area’s base stations are shared. However in urban areas, they set up their own base stations individually without sharing.

3. Do you have a regulation on this aspect?
 ○ There is no specific regulation for network sharing, and it is managed according to the existing Radio Waves Law system.

4. What is the main benefit of the local roaming?
 ○ 5G coverage can be expanded with minimal investment, allowing 5G services to be provided to most people in a short period of time.
 ○ When mobile operators(A,B) jointly use wireless communication facilities, Operator B can service using Operator A’s network in the A’s 5G-constructed area, without building B’s own network.
  Please refer to an image here : https://biz.chosun.com/resizer/pN75YK93pAhSJxS9dMVDLbcdfZg=/616x0/smart/cloudfront-ap-northeast-1.images.arcpublishing.com/chosunbiz/FM3SCVLAI5ARDE5HNSYGWEOHAA.jpg

5. Does the Korean operator share a frequency band with the mobile operator for high-speed data throughput?
 ○ Each MNO’s frequency band is not shared with other operators as the company has secured the exclusive right to use through paying the price.

6. Do you have any suggestions on this technique?
 ○ For network sharing, cooperation between MNOs is essential. The government should establish an appropriate discussion channel to ensure close consultation and review in advance
  ※ In the case of Korea, we operated a T/F team, reviewing technical methods, target regions, and ’when to provide service’ for more than 6 months.
 ○ Through Analysis of population density and data traffic, the regions to set up individually or to share the network for each MNO should be efficiently distributed.
 ○ Common quality standards should be established to prevent quality gaps between operators in the joint-using areas.
 ○ It is necessary to establish a hotline and a managing system for the sharing network between operators for stable service and quality management, such as checking the network operation and responding quickly to communication failures or malfunctions.

23-10-24 10:24

Chanho Shin

If you want more details, please email me : 'chanho15@korea.kr'

23-10-24 10:27