Traffic timing control for an open radio access network in a cloud radio access network system
There is provided a method of operating an Open Radio Access Network (O-RAN) having an O-RAN radio unit (O-RU) and an O-RU controller. The method includes sending, from the O-RU to the O-RU controller, (i) a message informing that the O-RU supports a feature such as (a) a plurality of delay management profiles, and/or (b) a plurality of transmission window sizes, and (ii) a report of capabilities of the O-RU, where the report includes a parameter such as (a) a quantity of supported delay management profiles, (b) supported window sizes for each of the plurality of delay management profiles, and/or (c) a supported window offset for each of the plurality of delay management profiles. The O-RU controller configures the O-RU based on the feature and the parameter.
1. A method of operating an Open Radio Access Network (O-RAN) having an O-RAN radio unit (O-RU) and an O-RU controller, comprising:
sending, from said O-RU to said O-RU controller, a message informing that said O-RU supports features including (a) a plurality of delay management profiles, and (b) a plurality of transmission window sizes; and
sending, from said O-RU to said O-RU controller, a report of capabilities of said O-RU, wherein said report comprises parameters including (a) a quantity of supported delay management profiles, (b) supported window sizes for each of said plurality of delay management profiles, and (c) a supported window offset for each of said plurality of delay management profiles;
wherein said O-RU controller configures said O-RU based on said features and said parameters;
wherein each of said plurality of delay management profiles is defined in terms of a subcarrier spacing (SCS) and a bandwidth (BW).
2. The method of claim 1 , wherein each of said plurality of delay management profiles is given a delay management profile identification.
3. The method of claim 1 , wherein said O-RAN also includes an O-RAN distributed unit (O-DU), and said method further comprises:
sending, from said O-DU to said O-RU, in a control-plane message, a section extension that includes a delay management profile identification (ID) that identifies a delay management profile to be used for a user-plane resource.
4. The method of claim 3 , wherein said delay management profile ID refers to delay parameters of a control-plane message.
5. The method of claim 1 , wherein said O-RAN also includes an O-RAN distributed unit (O-DU), and said method further comprises:
sending, from said O-DU to said O-RU, in a control-plane message, a section extension that indicates a transmit window and a delay offset to be used for a time/frequency resource.
6. The method of claim 1 , wherein said O-RU controller statically links, via a management-plane interface, a delay management profile in said plurality of delay management profiles, to traffic selected from the group consisting of user-plane traffic and control-plane traffic.
7. The method of claim 1 , wherein said O-RU controller configures said O-RU, via a management-plane interface, with a window size from said supported set of window sizes, and a window offset from said supported window offsets, for traffic selected from the group consisting of user-plane traffic and control-plane traffic.
8. The method of claim 1 , wherein said O-RU controller configures said O-RU via a management-plane interface by marking control-plane traffic as non-delay managed traffic.
9. The method of claim 1 ,
wherein said O-RU controller resides in a service management and orchestration system (SMO), and
wherein said O-RU controller configures said O-RU in communications conducted between said O-RU controller and said O-RU via a management-plane interface.
10. An Open Radio Access Network Radio Unit (O-RU) comprising electronic circuity adapted to perform operations of:
sending to an O-RU controller in an Open Radio Access Network (O-RAN), a message informing that said O-RU supports features including (a) a plurality of delay management profiles, and (b) a plurality of transmission window sizes;
sending to said O-RU controller, a report of capabilities of said O-RU, wherein said report comprises parameters including (a) a quantity of supported delay management profiles, (b) supported window sizes for each of said plurality of delay management profiles, and (c) a supported window offset for each of said plurality of delay management profiles;
receiving from said O-RU controller, configuration data based on said features and said parameters; and
operating said O-RU in accordance with said configuration data,
wherein each of said plurality of delay management profiles is defined in terms of a subcarrier spacing (SCS) and a bandwidth (BW).
11. The O-RU of claim 10 , wherein each of said plurality of delay management profiles is given a delay management profile identification.
12. The O-RU of claim 10 , wherein said electronic circuitry is further adapted to perform an operation of:
receiving, from an Open Radio Access Network Distributed Unit (O-DU) in said O-RAN, in a control-plane message, a section extension that includes a delay management profile identification (ID) that identifies a delay management profile to be used for a user-plane resource.
13. The O-RU of claim 12 , wherein said delay management profile ID refers to delay parameters of a control-plane message.
14. The O-RU of claim 10 , wherein said electronic circuitry is further adapted to perform an operation of:
receiving from an Open Radio Access Network Distributed Unit (O-DU) in said O-RAN, in a control-plane message, a section extension that indicates a transmit window and a delay offset to be used for a time/frequency resource.
15. The O-RU of claim 10 , wherein said O-RU controller statically links, via a management-plane interface, a delay management profile in said plurality of delay management profiles, to traffic selected from the group consisting of user-plane traffic and control-plane traffic.
16. The O-RU of claim 10 , wherein said O-RU controller configures said O-RU, via a management-plane interface, with a window size from said supported set of window sizes, and a window offset from said supported window offsets, for traffic selected from the group consisting of user-plane traffic and control-plane traffic.
17. The O-RU of claim 10 , wherein said O-RU controller configures said O-RU via a management-plane interface by marking control-plane traffic as non-delay managed traffic.
18. The O-RU of claim 10 ,
wherein said O-RU controller resides in a service management and orchestration system (SMO), and
wherein said O-RU controller configures said O-RU in communications conducted between said O-RU controller and said O-RU via a management-plane interface.
19. An Open Radio Access Network Radio Unit controller (O-RU controller) comprising electronic circuity adapted to perform operations of:
receiving, from an Open Radio Access Network Radio Unit (O-RU) in an Open Radio Access Network (O-RAN), a message informing that said O-RU supports features including (a) a plurality of delay management profiles, and (b) a plurality of transmission window sizes;
receiving, from said O-RU to said O-RU controller, a report of capabilities of said O-RU, wherein said report comprises parameters including (a) a quantity of supported delay management profiles, (b) supported window sizes for each of said plurality of delay management profiles, and (c) a supported window offset for each of said plurality of delay management profiles; and
configuring said O-RU based on said features and said parameters;
wherein each of said plurality of delay management profiles is defined in terms of a subcarrier spacing (SCS) and a bandwidth (BW).
20. The O-RU controller of claim 19 , wherein each of said plurality of delay management profiles is given a delay management profile identification.
21. The O-RU controller of claim 19 , wherein said O-RAN also includes an O-RAN distributed unit (O-DU), and wherein said O-DU sends to said O-RU, in a control-plane message, a section extension that includes a delay management profile identification (ID) that identifies a delay management profile to be used for a user-plane resource.
22. The O-RU controller of claim 21 , wherein said delay management profile ID refers to delay parameters of a control-plane message.
23. The O-RU controller of claim 19 ,
wherein said O-RAN also includes an O-RAN distributed unit (O-DU), and
wherein said O-DU sends to said O-RU, in a control-plane message, a section extension that indicates a transmit window and a delay offset to be used for a time/frequency resource.
24. The O-RU controller of claim 19 , wherein said electronic circuitry is further adapted to perform an operation of statically linking, via a management-plane interface, a delay management profile in said plurality of delay management profiles, to traffic selected from the group consisting of user-plane traffic and control-plane traffic.
25. The O-RU controller of claim 19 , wherein said electronic circuitry is further adapted to perform an operation of configuring said O-RU, via a management-plane interface, with a window size from said supported set of window sizes, and a window offset from said supported window offsets, for traffic selected from the group consisting of user-plane traffic and control-plane traffic.
26. The O-RU controller of claim 19 , wherein said electronic circuitry is further adapted to perform an operation of configuring said O-RU via a management-plane interface by marking control-plane traffic as non-delay managed traffic.
27. The O-RU controller of claim 19 ,
wherein said O-RU controller resides in a service management and orchestration system (SMO), and
wherein said O-RU controller configures said O-RU in communications conducted between said O-RU controller and said O-RU via a management-plane interface.