Method for handling a radio resource control cell group configuration

1. A method for handling a radio resource control cell group configuration by a base station, the method comprising the base station:

receiving, by the base station and from a user equipment, a first radio resource control message that requests a connection procedure between the user equipment and the base station;

generating a second radio resource control message that includes a cell-group-configuration information element that excludes a reconfiguration-with-sync information element;

transmitting, to the user equipment, the second radio resource control message; and

receiving, from the user equipment, a third radio resource control message that indicates the connection procedure is complete.

2. The method of claim 1 , wherein:

the first radio resource control message comprises a radio resource control resume request message,

the second radio resource control message comprises a radio resource control resume message,

the third radio resource control message comprises a radio resource control resume complete message, and

the connection procedure comprises a connection resume procedure.

3. The method of claim 1 , wherein:

the first radio resource control message comprises a radio resource control setup request message,

the second radio resource control message comprises a radio resource control setup message,

the third radio resource control message comprises a radio resource control setup complete message, and

the connection procedure comprises a connection establishment procedure.

4. The method as recited in claim 1 , wherein the generating the second radio resource control message further comprises the base station determining, in response to receiving the first radio resource control message, to exclude the reconfiguration-with-sync information element from the cell-group-configuration information element.

5. The method as recited in claim 1 , wherein the base station includes a base station distributed unit that communicates with a base station central unit, and the generating the second radio resource control message comprises:

transmitting, to the base station central unit, the cell-group-configuration information element that excludes the reconfiguration-with-sync information element using an initial uplink radio resource control transfer message;

receiving, from the base station central unit, a downlink radio resource control transfer message; and

generating, based on the receiving, the second radio resource control message as a radio resource control setup message, wherein the radio resource control setup message is configured with the cell-group-configuration information element that excludes the reconfiguration-with-sync information element.

6. The method as recited in claim 5 , wherein the first radio resource control message comprises a radio resource control resume request.

7. The method as recited in claim 5 , wherein the first radio resource control message comprises a radio resource control setup request.

8. A base station device comprising:

a wireless transceiver; and

a processor and memory system coupled to the wireless transceiver and configured to direct the base station device to perform operations comprising:

receiving, by the base station device and from a user equipment, a first radio resource control message that requests a connection procedure between the user equipment and the base station device;

generating a second radio resource control message that includes a cell-group-configuration information element that excludes a reconfiguration-with-sync information element;

transmitting, to the user equipment, the second radio resource control message; and

receiving, from the user equipment, a third radio resource control message that indicates the connection procedure is complete.

9. A method of handling radio resource control cell group configurations by a user equipment, the method comprising:

transmitting, by the user equipment, a first radio resource control message to a base station to request a connection procedure between the user equipment and the base station;

receiving a second radio resource control message from the base station, the second radio resource control message including a cell-group-configuration information element that excludes a reconfiguration-with-sync information element; and

performing the connection procedure with the base station based, at least in part, on the second radio resource control message, by transmitting, to the base station, a third radio resource control message that indicates the connection procedure is complete.

10. The method as recited in claim 9 , wherein:

the first radio resource control message comprises a radio resource control resume request message,

the second radio resource control message comprises a radio resource control resume message,

the third radio resource control message comprises a radio resource control resume complete message, and

the connection procedure comprises a connection resume procedure.

11. The method as recited in claim 9 , wherein:

the first radio resource control message comprises a radio resource control setup request message,

the second radio resource control message comprises a radio resource control setup message,

the third radio resource control message comprises a radio resource control setup complete message, and

the connection procedure comprises a connection establishment procedure.

12. The method as recited in claim 9 , wherein the performing the connection procedure with the base station based, at least in part, on the second radio resource control message further comprises:

determining, in response to receiving the second radio resource control message, that a time alignment timer associated with the connection procedure is non-expired;

determining, based on the determining that the time alignment time is non-expired, that an uplink connection with the base station is synchronized; and

determining to transmit the third radio resource control message based on the determination that the uplink connection is synchronized.

13. A user equipment comprising:

a wireless transceiver; and

a processor and memory system coupled to the wireless transceiver and configured to direct the user equipment to perform operations comprising:

transmitting, by the user equipment, a first radio resource control message to a base station to request a connection procedure between the user equipment and the base station;

receiving a second radio resource control message from the base station, the second radio resource control message including a cell-group-configuration information element that excludes a reconfiguration-with-sync information element; and

performing the connection procedure with the base station based, at least in part, on the second radio resource control message, by transmitting, to the base station, a third radio resource control message that indicates the connection procedure is complete.

14. The user equipment as recited in claim 13 , wherein:

transmitting the first radio resource control message comprises:

transmitting a radio resource control resume request message,

wherein receiving the second radio resource control message comprises:

receiving a radio resource control resume message,

wherein transmitting the third radio resource control message comprises:

transmitting a radio resource control resume complete message, and

wherein performing the connection procedure comprises:

performing a connection resume procedure.

15. The user equipment as recited in claim 13 , wherein:

transmitting the first radio resource control message comprises:

transmitting a radio resource control setup request message,

wherein receiving the second radio resource control message comprises:

receiving a radio resource control setup message,

wherein transmitting the third radio resource control message comprises:

transmitting a radio resource control setup complete message, and

wherein performing the connection procedure comprises:

performing a connection establishment procedure.

16. The user equipment as recited in claim 13 , wherein performing the connection procedure with the base station based, at least in part, on the second radio resource control message further comprises:

determining, in response to receiving the second radio resource control message, that a time alignment timer associated with the connection procedure is non-expired;

determining, based on the determining that the time alignment time is non-expired, that an uplink connection with the base station is synchronized; and

determining to transmit the third radio resource control message based on the determination that the uplink connection is synchronized.

17. A non-transitory computer-readable medium storing processor-executable instructions that, responsive to execution by at least one processor of a base station, cause the base station to perform operations comprising:

receiving, by the base station and from a user equipment, a first radio resource control message that requests a connection procedure between the user equipment and the base station;

generating a second radio resource control message that includes a cell-group-configuration information element that excludes a reconfiguration-with-sync information element;

transmitting, to the user equipment, the second radio resource control message; and

receiving, from the user equipment, a third radio resource control message that indicates the connection procedure is complete.

18. The non-transitory computer-readable medium as recited in claim 17 , wherein:

receiving the first radio resource control message comprises:

receiving a radio resource control resume request message,

wherein generating the second radio resource control message comprises:

generating a radio resource control resume message, and

wherein receiving the third radio resource control message comprises:

receiving a radio resource control resume complete message.

19. A non-transitory computer-readable medium storing processor-executable instructions that, responsive to execution by at least one processor of a user equipment, cause the user equipment to perform operations comprising:

transmitting, by the user equipment, a first radio resource control message to a base station to request a connection procedure between the user equipment and the base station;

receiving a second radio resource control message from the base station, the second radio resource control message including a cell-group-configuration information element that excludes a reconfiguration-with-sync information element; and

performing the connection procedure with the base station based, at least in part, on the second radio resource control message, by transmitting, to the base station, a third radio resource control message that indicates the connection procedure is complete.

20. The non-transitory computer-readable medium as recited in claim 19 , wherein transmitting the first radio resource control message comprises:

transmitting a radio resource control resume request message,

wherein receiving the second radio resource control message comprises:

receiving a radio resource control resume message,

wherein transmitting the third radio resource control message comprises:

transmitting a radio resource control resume complete message, and

wherein performing the connection procedure comprises:

performing a connection resume procedure.