Radio Access Network Dynamic Functional Splits

Abstract

Systems and methods for Radio Access Network dynamic functional splits are de-scribed. In one embodiment, a method may be disclosed for Radio Access Network dynamic func-tional splits, comprising: determining, by a user for a RAN, a first split of different functionalities between a central Unit (CU) and a Distributed Unit (DU), the functionalities including a Radio Resource Controller (RRC), a Packet Data Convergence Protocol (PDCP), a Radio Link Control (RLC); a Medium Access control (MAC), a Physical Layer (PHY), and a Radio Frequency Unit (RF); and wherein the system is able to provide different splits of the functionalities based on fac-tors such as user count, fronthaul capacity, fronthaul usage, required baseband processing capacity, and latency.

1 . A method for providing Radio Access Network (RAN) dynamic functional splits, comprising:
 determining, by a user for a RAN, a first split of different functionalities between a central Unit (CU) and a Distributed Unit (DU), the functionalities including a Radio Resource Controller (RRC), a Packet Data Convergence Protocol (PDCP), a Radio Link Control (RLC); a Medium Access control (MAC), a Physical Layer (PHY), and a Radio Frequency Unit (RF); and   wherein the system is able to provide different splits of the functionalities based on fac-tors such as user count, fronthaul capacity, fronthaul usage, required baseband processing capacity, and latency.   
     
     
         2 . The method of  claim 1  wherein the RLC comprises a high RLC and a low RLC. 
     
     
         3 . The method of  claim 1  wherein the MAC comprises a low MAC and a high MAC. 
     
     
         4 . The method of  claim 1  wherein the PHY comprises a low PHY and a high PHY. 
     
     
         5 . The method of  claim 1  wherein a first split comprises the CU including the RRC; and the DU including the PDCP, RLC, MAC, PHY and RF. 
     
     
         6 . The method of  claim 1  wherein another split comprises the CU including the RRC and the PDCP; and the DU including the, RLC, MAC, PHY and RF. 
     
     
         7 . The method of  claim 2  wherein another split comprises the CU including the RRC, PDCP and high RLC; and the DU including the low RLC, MAC, PHY and RF. 
     
     
         8 . The method of  claim 1  wherein a first split comprises the CU including the RRC, PDCP and RLC; and the DU including the MAC, PHY and RF. 
     
     
         9 . The method of  claim 3  wherein a first split comprises the CU including the RRC, PDCP, RLC and high MAC; and the DU including the low MAC, PHY and RF. 
     
     
         10 . The method of  claim 1  wherein a first split comprises the CU including the RRC, PDCP, RLC and MAC; and the DU including the PHY and RF. 
     
     
         11 . The method of  claim 4  wherein a first split comprises the CU including the RRC, PDCP, RLC, MAC and high PHY; and the DU including the low PHY and RF. 
     
     
         12 . The method of  claim 1  wherein a first split comprises the CU including the RRC, PDCP, RLC, MAC and PHY; and the DU including the RF. 
     
     
         13 . A non-transitory computer-readable medium containing instructions for providing Radio Access Network (RAN) dynamic functional splits which, when executed, cause the system to perform steps comprising:
 determining, by a user for a RAN, a first split of different functionalities between a central Unit (CU) and a Distributed Unit (DU), the functionalities including a Radio Resource Controller (RRC), a Packet Data Convergence Protocol (PDCP), a Radio Link Control (RLC); a Medium Access control (MAC), a Physical Layer (PHY), and a Radio Frequency Unit (RF); and   wherein the system is able to provide different splits of the functionalities. providing neighbor relations for moving cells   
     
     
         14 . A system for providing Radio Access Network (RAN) dynamic functional splits, comprising:
 a converged wireless system (CWS);   a HetNet Gateway (HNG) in communication with the CWS;   wherein a user is enabled to determine a first split of different functionalities between a central Unit (CU) and a Distributed Unit (DU), the functionalities including a Radio Resource Controller (RRC), a Packet Data Convergence Protocol (PDCP), a Radio Link Control (RLC); a Medium Access control (MAC), a Physical Layer (PHY), and a Radio Frequency Unit (RF); and   wherein the system is able to provide different splits of the functionalities.