{"id":2949,"date":"2020-10-04T13:45:04","date_gmt":"2020-10-04T13:45:04","guid":{"rendered":"https:\/\/www.5gworldpro.com\/?p=2949"},"modified":"2020-10-04T13:45:04","modified_gmt":"2020-10-04T13:45:04","slug":"what-are-the-gnb-split-options-in-5g","status":"publish","type":"post","link":"https:\/\/new.5gworldpro.com\/?p=2949","title":{"rendered":"What are the gNB split options in 5G?"},"content":{"rendered":"<p>My friend: Hi Ibrahim, I have a question for you.<\/p>\n<p>Me: Go ahead. My friend: What are the gNB split options available in 5G?<\/p>\n<p>Me: Do you remember our last discussion? My friend: Yes, when you mentioned that CU is handling PDCP and above layers, while DU is handling RLC, MAC and physical layer (Check last post <a href=\"https:\/\/www.5gworldpro.com\/5g-knowledge\/what-is-cu-and-du-in-5g.html\">here<\/a> )<\/p>\n<p>Me: Great. Actually, this is only one option to split the CU and DU, while there are 8 options available as per 3GPP shown at the below snapshot, so you can split the gNB at different points in protocol stack. Option 2 was the one adapted by 3GPP in Rel-15. Moving from option 1 towards option 8 means high requirement for capacity and low latency and vice versa.<\/p>\n<p>My Friend: But, why we have such a split?<\/p>\n<p>Me: The split brings more flexibility and flexible hardware and software implementations allow scalable, cost-effective network deployments. Also, split architecture between CU and DU allows for coordination for performance features, load management and real-time performance optimization between all DUs via one CU.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-2950 size-large\" src=\"https:\/\/www.5gworldpro.com\/wp-content\/uploads\/2020\/10\/split-option-1024x607.jpg\" alt=\"\" width=\"696\" height=\"413\" srcset=\"https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/10\/split-option-1024x607.jpg 1024w, https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/10\/split-option-300x178.jpg 300w, https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/10\/split-option-768x455.jpg 768w, https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/10\/split-option-709x420.jpg 709w, https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/10\/split-option-150x89.jpg 150w, https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/10\/split-option-696x413.jpg 696w, https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/10\/split-option.jpg 1068w\" sizes=\"(max-width: 696px) 100vw, 696px\" \/><\/p>\n<p>My friend: Thanks a lot. Me: You are welcomed.<\/p>\n<!-- \/wp:post-content -->\n\n<!-- wp:paragraph -->\n<p><em>Source: Ibrahim Sayed<\/em><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p><em>Linkedin Profile:\u00a0<a href=\"https:\/\/www.linkedin.com\/in\/ibrahim-sayed-88a7747-5g\/\">https:\/\/www.linkedin.com\/in\/ibrahim-sayed-88a7747-5g\/<\/a><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>My friend: Hi Ibrahim, I have a question for you. Me: Go ahead. My friend: What are the gNB split options available in 5G? Me: Do you remember our last discussion? My friend: Yes, when you mentioned that CU is handling PDCP and above layers, while DU is handling RLC, MAC and physical layer (Check [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2950,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[353,354,355,191],"class_list":{"0":"post-2949","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-5g-knowledge","8":"tag-5g-split","9":"tag-cu","10":"tag-du","11":"tag-open-ran"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v22.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What are the gNB split options in 5G? - 5gworldpro.com<\/title>\n<meta name=\"description\" content=\"there are 8 options available as per 3GPP shown at the below snapshot, so you can split the gNB at different points in protocol stack\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/new.5gworldpro.com\/?p=2949\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are the gNB split options in 5G?\" \/>\n<meta property=\"og:description\" content=\"there are 8 options available as per 3GPP shown at the below snapshot, so you can split the gNB at different points in protocol stack\" \/>\n<meta property=\"og:url\" content=\"https:\/\/new.5gworldpro.com\/?p=2949\" \/>\n<meta property=\"og:site_name\" content=\"E-Commerce Revolution\" \/>\n<meta property=\"article:published_time\" content=\"2020-10-04T13:45:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/10\/split-option.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1068\" \/>\n\t<meta property=\"og:image:height\" content=\"633\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/new.5gworldpro.com\/?p=2949\",\"url\":\"https:\/\/new.5gworldpro.com\/?p=2949\",\"name\":\"What are the gNB split options in 5G? 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