Dynamic control of sidelink resources in a communication network

1. A user equipment, comprising:

a memory comprising computer-executable instructions; and

one or more processors, individually or collectively, configured to execute the computer-executable instructions and cause the user equipment to:

establish a first data connection with a network element;

receive from the network element, via the first data connection, a first logical channel ID (LCID) in a header of a first Medium-Access Control (MAC) control element configured to cause the user equipment to activate a pool of sidelink resources, wherein a value of the first LCID is mapped to enabling the pool of sidelink resources and another value of the first LCID is mapped to disabling the pool of sidelink resources;

activate the pool of sidelink resources according to the first LCID;

receive from the network element via the first data connection a second LCID in a header of a second MAC control element configured to cause the user equipment to configure the pool of sidelink resources for sidelink communication, wherein, to cause the user equipment to configure the pool of sidelink resources, the second LCID is configured to cause the user equipment to configure one or more operating parameters for the sidelink communication using the pool of sidelink resources, wherein a value of the second LCID is mapped to the one or more operating parameters to cause the user equipment to configure the one or more operating parameters and another value of the second LCID is mapped to changing at least one of a number of physical resource blocks or a time-frequency allocation of the pool of sidelink resources; and

configure the pool of sidelink resources according to the second LCID.

2. The user equipment of claim 1 , wherein the one or more processors are further configured to cause the user equipment to:

activate a pool of vehicle-to-everything (V2X) sidelink resources based on the second LCID,

wherein the pool of V2X sidelink resources is a subset of the pool of sidelink resources.

3. The user equipment of claim 2 , wherein the one or more processors are further configured to cause the user equipment to:

receive from the network element, via the first data connection, a third LCID in a header of a third MAC control element configured to cause the user equipment to deactivate the pool of V2X sidelink resources; and

deactivate the pool of V2X sidelink resources according to the third LCID.

4. The user equipment of claim 2 , wherein the one or more processors are further configured to cause the user equipment to transmit a message to a vehicle user equipment via a second data connection using the pool of V2X sidelink resources.

5. The user equipment of claim 2 , wherein the one or more processors are further configured to cause the user equipment to receive a message from a vehicle user equipment via a second data connection using the pool of V2X sidelink resources.

6. The user equipment of claim 1 , wherein the one or more processors are further configured to cause the user equipment to:

change a Discontinuous Reception (DRX) cycle time for a pool of vehicle-to-everything (V2X) sidelink resources based on the second LCID,

wherein the pool of V2X sidelink resources is a subset of the pool of sidelink resources.

7. The user equipment of claim 1 , wherein the one or more processors are further configured to cause the user equipment to:

change at least one of the number of physical resource blocks or the time-frequency allocation of the pool of sidelink resources based on the other value of the second LCID.

8. The user equipment of claim 1 , wherein the one or more processors are further configured to cause the user equipment to:

receive from the network element, via the first data connection, a third LCID in a header of a third MAC control element configured to cause the user equipment to deactivate the pool of sidelink resources; and

deactivate the pool of sidelink resources according to the third LCID.

9. The user equipment of claim 1 , wherein:

the network element comprises a base station,

the first data connection comprises an access link, and

the one or more processors are further configured to cause the user equipment to receive the first LCID via a downlink shared channel of the access link.

10. The user equipment of claim 9 , wherein the access link comprises a Uu air interface.

11. The user equipment of claim 1 , wherein:

the network element comprises a roadside unit, and

the first data connection comprises a sidelink.

12. The user equipment of claim 11 , wherein the sidelink comprises a PC5 air interface.

13. A method for configuring resources at a user equipment, comprising:

establishing a first data connection with a network element;

receiving from the network element, via the first data connection, a first logical channel ID (LCID) in a header of a first Medium-Access Control (MAC) control element configured to cause the user equipment to activate a pool of sidelink resources, wherein a value of the first LCID is mapped to enabling the pool of sidelink resources and another value of the first LCID is mapped to disabling the pool of sidelink resources;

activating the pool of sidelink resources according to the first LCID;

receiving from the network element via the first data connection a second LCID in a header of a second MAC control element configured to cause the user equipment to configure the pool of sidelink resources for sidelink communication, wherein, to cause the user equipment to configure the pool of sidelink resources, the second LCID is configured to cause the user equipment to configure one or more operating parameters for the sidelink communication using the pool of sidelink resources, wherein a value of the second LCID is mapped to the one or more operating parameters to cause the user equipment to configure the one or more operating parameters and another value of the second LCID is mapped to changing at least one of a number of physical resource blocks or a time-frequency allocation of the pool of sidelink resources; and

configuring the pool of sidelink resources according to the second LCID.

14. The method of claim 13 , further comprising:

activating a pool of vehicle-to-everything (V2X) sidelink resources based on the second LCID,

wherein the pool of V2X sidelink resources is a subset of the pool of sidelink resources.

15. The method of claim 14 , further comprising:

receiving from the network element, via the first data connection, a third LCID in a header of a third MAC control element configured to cause the user equipment to deactivate the pool of V2X sidelink resources; and

deactivating the pool of V2X sidelink resources according to the third LCID.

16. The method of claim 14 , further comprising transmitting a message to a vehicle user equipment via a second data connection using the pool of V2X sidelink resources.

17. The method of claim 14 , further comprising receiving a message from a vehicle user equipment via a second data connection using the pool of V2X sidelink resources.

18. The method of claim 13 , further comprising:

changing a Discontinuous Reception (DRX) cycle time for a pool of vehicle-to-everything (V2X) sidelink resources based on the second LCID,

wherein the pool of V2X sidelink resources is a subset of the pool of sidelink resources.

19. The method of claim 13 , further comprising:

changing at least one of the number of physical resource blocks or the time-frequency allocation of the pool of sidelink resources based on the other value of the second LCID.

20. The method of claim 13 , further comprising:

receiving from the network element, via the first data connection, a third LCID in a header of a third MAC control element configured to cause the user equipment to deactivate the pool of sidelink resources; and

deactivating the pool of sidelink resources according to the third LCID.

21. The method of claim 13 , wherein:

the network element comprises a base station,

the first data connection comprises an access link, and

the method further comprises receiving the first LCID via a downlink shared channel of the access link.

22. The method of claim 21 , wherein the access link comprises a Uu air interface.

23. The method of claim 13 , wherein:

the network element comprises a roadside unit, and

the first data connection comprises a sidelink.

24. The method of claim 23 , wherein the sidelink comprises a PC5 air interface.

25. A user equipment, comprising:

means for establishing a first data connection with a network element;

means for receiving from the network element, via the first data connection, a first logical channel ID (LCID) in a header of a first Medium-Access Control (MAC) control element configured to cause the user equipment to activate a pool of sidelink resources, wherein a value of the first LCID is mapped to enabling the pool of sidelink resources and another value of the first LCID is mapped to disabling the pool of sidelink resources;

means for activating the pool of sidelink resources according to the first LCID;

means for receiving from the network element via the first data connection a second LCID in a header of a second MAC control element configured to cause the user equipment to configure the pool of sidelink resources for sidelink communication, wherein, to cause the user equipment to configure the pool of sidelink resources, the second LCID is configured to cause the user equipment to configure one or more operating parameters for the sidelink communication using the pool of sidelink resources, wherein a value of the second LCID is mapped to the one or more operating parameters to cause the user equipment to configure the one or more operating parameters and another value of the second LCID is mapped to changing at least one of a number of physical resource blocks or a time-frequency allocation of the pool of sidelink resources; and

means for configuring the pool of sidelink resources according to the second LCID.

26. A non-transitory computer-readable medium comprising computer-executable instructions that, when executed by a processor of a user equipment, cause the user equipment to perform a method for configuring resources, the method comprising:

establishing a first data connection with a network element;

receiving from the network element, via the first data connection, a first logical channel ID (LCID) in a header of a first Medium-Access Control (MAC) control element configured to cause the user equipment to activate a pool of sidelink resources, wherein a value of the first LCID is mapped to enabling the pool of sidelink resources and another value of the first LCID is mapped to disabling the pool of sidelink resources;

activating the pool of sidelink resources according to the first LCID;

receiving from the network element via the first data connection a second LCID configured to cause the user equipment to configure the pool of sidelink resources for sidelink communication, wherein, to cause the user equipment to configure the pool of sidelink resources, the second LCID is configured to cause the user equipment to configure one or more operating parameters for the sidelink communication using the pool of sidelink resources, wherein a value of the second LCID is mapped to the one or more operating parameters to cause the user equipment to configure the one or more operating parameters and another value of the second LCID is mapped to changing at least one of a number of physical resource blocks or a time-frequency allocation of the pool of sidelink resources; and

configuring the pool of sidelink resources according to the second LCID.