이 문서는 네트워크의 민간 광대역 무선 서비스 기기 (CBSD)에 관한 채널 안내를 이해하는 데 도움이 됩니다.
채널 품질 및 순위는 CBSD의 게재빈도 관리 그룹에 따라 다릅니다. CBSD가 등록 요청에 이 정보를 제공하지 않는 한 스펙트럼 액세스 시스템 (SAS)은 모든 CBSD에 주파수 관리 그룹을 자동으로 할당합니다. 채널 안내 정보를 최적화하려면 Google SAS 포털을 사용하여 게재빈도 관리 그룹을 조정하면 됩니다.
[[["이해하기 쉬움","easyToUnderstand","thumb-up"],["문제가 해결됨","solvedMyProblem","thumb-up"],["기타","otherUp","thumb-up"]],[["이해하기 어려움","hardToUnderstand","thumb-down"],["잘못된 정보 또는 샘플 코드","incorrectInformationOrSampleCode","thumb-down"],["필요한 정보/샘플이 없음","missingTheInformationSamplesINeed","thumb-down"],["번역 문제","translationIssue","thumb-down"],["기타","otherDown","thumb-down"]],["최종 업데이트: 2025-09-04(UTC)"],[],[],null,["# Optimize channel guidance\n\nThis document helps you understand the channel guidance for a Citizens Broadband Radio Service Device (CBSD)\nin your network.\n\nChannel quality and ranking vary based on a CBSD's frequency\nmanagement group. Spectrum Access System (SAS) automatically assigns frequency\nmanagement groups to all CBSDs unless the CBSD\nprovides this information in the registration request. To optimize channel\nguidance information, you can use the Google SAS Portal to\nadjust frequency management groups.\n\nSAS pre-populates values for your CBSDs every day:\n\n- The [Same Frequency Group (SFG)](/spectrum-access-system/docs/key-terms#sfg) is based on the best server available, azimuth, and on the channels that the CBSD uses.\n- The [Frequency Reuse Group (FRG)](/spectrum-access-system/docs/key-terms#frg) is based on the channels that the CBSD uses and on [user IDs](/spectrum-access-system/docs/key-terms#userid).\n\nTo make sure that the pre-populated values match your network configuration,\nreview the SFG and the FRG on the CBSD's **Config** tab.\n\nTo optimize channel guidance, assign frequency management groups as follows:\n\n- Assign an SFG to each CBSD that must use the same channel.\n- Assign an FRG to CBSDs that don't cause interference issues with each other when they share a channel.\n\nAfter you confirm your frequency management groups, review the recommended\nchannels on the CBSD's **Config** tab. You might have to wait up\nto four hours to view the updated results.\n\nUpdate frequency management groups\n----------------------------------\n\nTo update frequency management groups, follow these steps:\n\n1. Go to the [SAS Portal](https://wirelessconnectivity.google.com/sas/).\n2. Click **View deployments**.\n3. Select the deployment, and then click **Open**.\n4. To change group information, do the following:\n - For an existing CBSD, [find your CBSD configurations](/spectrum-access-system/docs/cbsd/review-configuration).\n - For a new CBSD, [create a new CBSD configuration](/spectrum-access-system/docs/cbsd/configure) and save it as **Ready for CPI**.\n5. Select the CBSD. On the right, the CBSD page opens.\n6. On the **Config** tab, click the **Frequency management** *expand_more*drop-down.\n7. For the **Same freq** and **Freq. reuse** fields, enter the group. You can assign a maximum of one SFG to a CBSD at a time and multiple FRGs to the same CBSD.\n\n| **Tip:** You can import CBSDs to specify SFG and FRG names. In the CSV template, use the CCG column for the SFG and the ICG column for the FRG.\n\nOverrides\n---------\n\nSome CBSDs are configured to send SFG and FRG information to\nSAS. When the CBSD provides grouping parameters\ninformation like this, it overrides information saved in the SAS\nPortal.\n\nYou can change the frequency management group settings in the SAS Portal, but the\nCBSD might reset those values if it's programmed to do so. For\nmore details, check with your CBSD vendor.\n\nWhat's next\n-----------\n\n- [Choose the best channels for a CBSD](/spectrum-access-system/docs/cbsd/channels).\n- Learn about [Spectrum Access System](/spectrum-access-system/docs/overview).\n- Learn about [key SAS terms](/spectrum-access-system/docs/key-terms).\n- [Troubleshoot SAS issues](/spectrum-access-system/docs/troubleshooting)."]]
