Radio Access Network Dynamic Functional Splits

Patent metadata

Field	Value
Publication number	US-2020128414-A1
Application number	US-201916655225-A
Country	US
Kind code	A1
Filing date	Oct 16, 2019
Priority date	Oct 16, 2018
Publication date	Apr 23, 2020
Grant date	—

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 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 factors such as user count, fronthaul capacity, fronthaul usage, required baseband processing capacity, and latency.

First claim

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 factors 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.

Assignees

• Parallel Wireless Inc

Inventors

• Mishra Rajesh Kumar
• Jafarian Babak
• Chivate Praneet

Classifications

• H04W84/005

  Moving wireless networks · CPC title

• H04W48/08

  Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) · CPC title

• H04W24/02 Primary

  Arrangements for optimising operational condition · CPC title

• H04W72/085

  Electricity · mapped topic

• H04W72/542

  using measured or perceived quality · CPC title