{"id":220,"date":"2020-02-18T11:31:18","date_gmt":"2020-02-18T11:31:18","guid":{"rendered":"https:\/\/migrate.5gworldpro.com\/5g-knowledge\/how-beamforming-works-in-5g-nr.html"},"modified":"2020-02-18T11:31:18","modified_gmt":"2020-02-18T11:31:18","slug":"178-how-beamforming-works-in-5g-nr","status":"publish","type":"post","link":"https:\/\/new.5gworldpro.com\/?p=220","title":{"rendered":"How Beamforming works in 5G NR"},"content":{"rendered":"

I don’t think trasmitting signal in Beam in high frequency deployment would\u00a0be the matter of choice. It is a kind of ‘MUST’ implementation. In case of low \/ mid frequency region without using massive antenna array, a single transmission would cover a lot of UEs simultaneously. However, when the radiation become beam-shaped it is very difficult to cover multiple UEs in single transmission unless those multiple UEs are\u00a0located in very close proximity.<\/p>\n

<\/p>\n

To handle this problem, we need a very sophisticated idea of managing\/controlling the beam to cover the multiple devices scattered in all directions and the management\/control mechanism should be different\u00a0depending on the situtations. We will see more details in beamforming management operation part.<\/p>\n

The beamforming technique focuses the RF energy into a narrow direction to allow the RF beam to propagate farther in that direction. Using this technique, non-line of sight (NLOS) RF communication in the mmWave spectrum may rely on reflection and\/or diffraction of the beams to reach the UE.
\nIf the direction becomes blocked, either because of UE movement or changes in the environment , the beam may not be able to reach the UE. Thus, in order to ensure that the UE has continuous, seamless coverage,\u00a0multiple beams in as many different directions as possible may be available.<\/p>\n

Beamforming Types<\/strong><\/h2>\n

In 5G NR, these beams are formed by analog beam-forming technique, but for the data transmissions 5G system dynamically uses analog or digital or the combination of analog and digital beam-forming called Hybrid beam-forming technique.<\/p>\n

Beamforming Management Operation\u00a0<\/strong><\/h2>\n

There\u2019re 4 operations:<\/p>\n

    \n
  1. Beam sweeping:<\/strong><\/li>\n<\/ol>\n

    Beam Sweeping is a technique to transmit the beams in all predefined directions in a burst in a regular interval<\/p>\n

    \"\"<\/p>\n

    The gNB transmits\u00a0different\u00a0beams in different spatial directions. The UE listens\/scans for the beam transmissions from the gNB in\u00a0 different receive spatial directions.\u00a0Based on the performed beam sweeps, the UE determines a channel quality associated with the performed beam sweeps. Then the UE sends the channel quality information to the gNB.
    \nAlso the UE and the gNB exchange other information (e.g., analog or digital beamforming capabilities, beamforming type, timing information, configuration information, etc.).
    \nBased on the received information, the gNB determines various configuration information, such as mmW network access configuration information, information for adjusting beam sweeping periodicity, information regarding overlapping coverage for predicting a handoff to another gNBs.<\/p>\n

      \n
    1. Beam measurement:<\/strong><\/li>\n<\/ol>\n

      It refers to evaluation of the quality of the received signal at the gNB or at the UE. Different metrics could be used such as RSRP, RSRQ and SINR for this purpose.<\/p>\n

        \n
      1. Beam determination:\u00a0<\/strong><\/li>\n<\/ol>\n

        the selection of the optimal beam (or set of beams) to set up a directional (and fully beamformed) communication.<\/p>\n

        then,\u00a0The UE selects Beam Index\u00a0 as it\u2019s the \u201cBest\u201d beam from the UE point of view<\/p>\n

          \n
        1. Beam reporting:\u00a0<\/strong><\/li>\n<\/ol>\n

          Ue after selecting the best beam from gNB, UE inform the selection by using a specific PRACH resource mapped to each DL Beam<\/p>\n","protected":false},"excerpt":{"rendered":"

          I don’t think trasmitting signal in Beam in high frequency deployment would\u00a0be the matter of choice. It is a kind of ‘MUST’ implementation. In case of low \/ mid frequency region without using massive antenna array, a single transmission would cover a lot of UEs simultaneously. However, when the radiation become beam-shaped it is very […]<\/p>\n","protected":false},"author":1,"featured_media":1369,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[113,35,221,51],"class_list":{"0":"post-220","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-5g-knowledge","8":"tag-5g-beamforming","9":"tag-5g-training","10":"tag-beamforming-in-5g","11":"tag-massive-mimo"},"yoast_head":"\nHow Beamforming works in 5G NR - E-Commerce Revolution<\/title>\n<meta name=\"description\" content=\"The beamforming technique focuses the RF energy into a narrow direction to allow the RF beam to propagate farther in that direction.\" \/>\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=220\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How Beamforming works in 5G NR\" \/>\n<meta property=\"og:description\" content=\"The beamforming technique focuses the RF energy into a narrow direction to allow the RF beam to propagate farther in that direction.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/new.5gworldpro.com\/?p=220\" \/>\n<meta property=\"og:site_name\" content=\"E-Commerce Revolution\" \/>\n<meta property=\"article:published_time\" content=\"2020-02-18T11:31:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/02\/ef5160c183a3b81fcdc9da906816bd11_w400_h200-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"400\" \/>\n\t<meta property=\"og:image:height\" content=\"200\" \/>\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=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/new.5gworldpro.com\/?p=220\",\"url\":\"https:\/\/new.5gworldpro.com\/?p=220\",\"name\":\"How Beamforming works in 5G NR - E-Commerce Revolution\",\"isPartOf\":{\"@id\":\"https:\/\/new.5gworldpro.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/new.5gworldpro.com\/?p=220#primaryimage\"},\"image\":{\"@id\":\"https:\/\/new.5gworldpro.com\/?p=220#primaryimage\"},\"thumbnailUrl\":\"https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/02\/ef5160c183a3b81fcdc9da906816bd11_w400_h200-1.jpg\",\"datePublished\":\"2020-02-18T11:31:18+00:00\",\"dateModified\":\"2020-02-18T11:31:18+00:00\",\"author\":{\"@id\":\"https:\/\/new.5gworldpro.com\/#\/schema\/person\/21ee7fd1dedad31584e8896ccdf4b5a9\"},\"description\":\"The beamforming technique focuses the RF energy into a narrow direction to allow the RF beam to propagate farther in that direction.\",\"breadcrumb\":{\"@id\":\"https:\/\/new.5gworldpro.com\/?p=220#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/new.5gworldpro.com\/?p=220\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/new.5gworldpro.com\/?p=220#primaryimage\",\"url\":\"https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/02\/ef5160c183a3b81fcdc9da906816bd11_w400_h200-1.jpg\",\"contentUrl\":\"https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/02\/ef5160c183a3b81fcdc9da906816bd11_w400_h200-1.jpg\",\"width\":400,\"height\":200},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/new.5gworldpro.com\/?p=220#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/new.5gworldpro.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How Beamforming works in 5G NR\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/new.5gworldpro.com\/#website\",\"url\":\"https:\/\/new.5gworldpro.com\/\",\"name\":\"E-Commerce Revolution\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/new.5gworldpro.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/new.5gworldpro.com\/#\/schema\/person\/21ee7fd1dedad31584e8896ccdf4b5a9\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/new.5gworldpro.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/94d7dcbfa1a531e9cb59cb3448b8da6a0f7d75131fc0849c70660340ed50289e?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/94d7dcbfa1a531e9cb59cb3448b8da6a0f7d75131fc0849c70660340ed50289e?s=96&d=mm&r=g\",\"caption\":\"admin\"},\"sameAs\":[\"https:\/\/new.5gworldpro.com\"],\"url\":\"https:\/\/new.5gworldpro.com\/?author=1\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"How Beamforming works in 5G NR - E-Commerce Revolution","description":"The beamforming technique focuses the RF energy into a narrow direction to allow the RF beam to propagate farther in that direction.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/new.5gworldpro.com\/?p=220","og_locale":"en_US","og_type":"article","og_title":"How Beamforming works in 5G NR","og_description":"The beamforming technique focuses the RF energy into a narrow direction to allow the RF beam to propagate farther in that direction.","og_url":"https:\/\/new.5gworldpro.com\/?p=220","og_site_name":"E-Commerce Revolution","article_published_time":"2020-02-18T11:31:18+00:00","og_image":[{"width":400,"height":200,"url":"https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/02\/ef5160c183a3b81fcdc9da906816bd11_w400_h200-1.jpg","type":"image\/jpeg"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"Written by":"admin","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/new.5gworldpro.com\/?p=220","url":"https:\/\/new.5gworldpro.com\/?p=220","name":"How Beamforming works in 5G NR - E-Commerce Revolution","isPartOf":{"@id":"https:\/\/new.5gworldpro.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/new.5gworldpro.com\/?p=220#primaryimage"},"image":{"@id":"https:\/\/new.5gworldpro.com\/?p=220#primaryimage"},"thumbnailUrl":"https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/02\/ef5160c183a3b81fcdc9da906816bd11_w400_h200-1.jpg","datePublished":"2020-02-18T11:31:18+00:00","dateModified":"2020-02-18T11:31:18+00:00","author":{"@id":"https:\/\/new.5gworldpro.com\/#\/schema\/person\/21ee7fd1dedad31584e8896ccdf4b5a9"},"description":"The beamforming technique focuses the RF energy into a narrow direction to allow the RF beam to propagate farther in that direction.","breadcrumb":{"@id":"https:\/\/new.5gworldpro.com\/?p=220#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/new.5gworldpro.com\/?p=220"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/new.5gworldpro.com\/?p=220#primaryimage","url":"https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/02\/ef5160c183a3b81fcdc9da906816bd11_w400_h200-1.jpg","contentUrl":"https:\/\/new.5gworldpro.com\/wp-content\/uploads\/2020\/02\/ef5160c183a3b81fcdc9da906816bd11_w400_h200-1.jpg","width":400,"height":200},{"@type":"BreadcrumbList","@id":"https:\/\/new.5gworldpro.com\/?p=220#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/new.5gworldpro.com\/"},{"@type":"ListItem","position":2,"name":"How Beamforming works in 5G NR"}]},{"@type":"WebSite","@id":"https:\/\/new.5gworldpro.com\/#website","url":"https:\/\/new.5gworldpro.com\/","name":"E-Commerce Revolution","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/new.5gworldpro.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/new.5gworldpro.com\/#\/schema\/person\/21ee7fd1dedad31584e8896ccdf4b5a9","name":"admin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/new.5gworldpro.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/94d7dcbfa1a531e9cb59cb3448b8da6a0f7d75131fc0849c70660340ed50289e?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/94d7dcbfa1a531e9cb59cb3448b8da6a0f7d75131fc0849c70660340ed50289e?s=96&d=mm&r=g","caption":"admin"},"sameAs":["https:\/\/new.5gworldpro.com"],"url":"https:\/\/new.5gworldpro.com\/?author=1"}]}},"_links":{"self":[{"href":"https:\/\/new.5gworldpro.com\/index.php?rest_route=\/wp\/v2\/posts\/220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/new.5gworldpro.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/new.5gworldpro.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/new.5gworldpro.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/new.5gworldpro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=220"}],"version-history":[{"count":0,"href":"https:\/\/new.5gworldpro.com\/index.php?rest_route=\/wp\/v2\/posts\/220\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/new.5gworldpro.com\/index.php?rest_route=\/wp\/v2\/media\/1369"}],"wp:attachment":[{"href":"https:\/\/new.5gworldpro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/new.5gworldpro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/new.5gworldpro.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}