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Rel-15 NG-RAN architecture with a CU-DU split deployment.

Rel-15 NG-RAN architecture with a CU-DU split deployment.

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The 3rd Generation Partnership Project (3GPP) has defined based on the Long Term Evolution (LTE) enhanced Multicast Broadcast Multimedia Service (eMBMS) a set of new features to support the distribution of Terrestrial Broadcast services in Release 14. On the other hand, a new 5 th Generation (5G) system architecture and radio access technology, 5G...

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... shown in Fig. 1, the gNB functions are split into CU and DU, where CU covers higher layer protocol functions of Service Data Adaptation Protocol (SDAP) and Packet Data Convergence Protocol (PDCP), and DU entails lower layer protocol functions of Radio Link Control (RLC), Medium Access Control (MAC) and Physical Layer (PHY). In a typical Cloud-RAN ...
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... examples are provided regarding the cell arrangements from which a broadcast service may be transmitted, in this case assuming TV/radio services. In Fig. 10, three different deployments are shown consisting of a nation-wide SFN, a regional SFN and a deployment covering the same area by means of single cell transmitters. A central hexagon is highlighted, which belongs to different RBMA IDs according to the network planning requirements of each TV/radio service. A frame transmitted from the ...

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