Assistance information for fast carrier aggregation and dual connectivity configuration
Apparatuses, systems, and methods for using an assistance information framework to perform fast carrier aggregation and dual connectivity configuration. A wireless device may provide assistance information for determining a carrier aggregation or dual connectivity configuration to a cellular base station. The assistance information may be provided while establishing a radio resource control connection. The assistance information may include either or both of carrier aggregation or dual connectivity preference information for the wireless device or service data amount information for the wireless device. The cellular base station may select a carrier aggregation or dual connectivity configuration for the wireless device based on the assistance information, and may provide configuration information for the selected configuration to the wireless device.
1. An apparatus, comprising:
a processor configured to cause a wireless device to:
provide a user equipment (UE) assistance information message including an indication, comprising one or more bits, of a preference for a dual connectivity configuration for communication to a cellular base station via a master cell group (MCG) and a secondary cell group (SCG), the preference including activation of the SCG, wherein the UE assistance information message is provided in a radio resource control (RRC) message to the cellular base station; and
receive, from the cellular base station, first information indicating activation of the SCG and activation of a dual connectivity configuration for communication via the MCG and the SCG based on the UE assistance information message, wherein the dual connectivity configuration for communication via the MCG and the SCG was pre-configured at the wireless device before receiving the first information.
2. The apparatus of claim 1 , wherein the processor is further configured to cause the wireless device to:
provide the UE assistance information message during a RRC connection setup procedure while transitioning from RRC idle mode to RRC connected mode.
3. The apparatus of claim 1 , wherein the processor is further configured to cause the wireless device to:
provide the UE assistance information message during a RRC resume procedure while transitioning from RRC inactive mode to RRC connected mode.
4. The apparatus of claim 1 ,
wherein the UE assistance information message includes an indication of one or more preferred and/or non-preferred dual connectivity frequencies.
5. The apparatus of claim 1 ,
wherein the UE assistance information message includes an indication of whether a previous dual connectivity configuration for communication via the MCG and the SCG can be reused.
6. The apparatus of claim 1 , wherein the processor is further configured to cause the wireless device to:
receive second information pre-configuring a plurality of carrier aggregation configuration indices corresponding to a plurality of carrier aggregation configurations for communication via the MCG and the SCG,
wherein the UE assistance information message includes an indication of a carrier aggregation configuration index corresponding to a preferred carrier aggregation configuration for communication via the MCG and the SCG.
7. The apparatus of claim 1 , wherein the processor is further configured to cause the wireless device to:
determine an estimated amount of uplink data to be communicated based at least in part on access stratum layer information,
wherein the UE assistance information message includes the estimated amount of uplink data to be communicated.
8. The apparatus of claim 1 , wherein the processor is further configured to cause the wireless device to:
determine an estimated amount of uplink and/or downlink data to be communicated based at least in part on application layer information,
wherein the UE assistance information message includes the estimated amount of uplink and/or downlink data to be communicated.
9. The apparatus of claim 1 , wherein the first information indicates activation of the dual connectivity configuration for communication via the MCG and the SCG without explicitly providing a configuration to the wireless device.
10. A wireless device, comprising:
an antenna;
a radio coupled to the antenna; and
a processing element coupled to the radio;
wherein the wireless device is configured to:
provide a user equipment (UE) assistance information message including an indication, comprising one or more bits, of a preference for a dual connectivity configuration for communication to a cellular base station via a master cell group (MCG) and a secondary cell group (SCG), the preference including activation of the SCG, wherein the UE assistance information message is provided in a radio resource control (RRC) message to the cellular base station; and
receive, from the cellular base station, first information indicating activation of the SCG and activation of a dual connectivity configuration for communication via the MCG and the SCG based on the UE assistance information message, wherein the dual connectivity configuration for communication via the MCG and the SCG was pre-configured at the wireless device before receiving the first information.
11. The wireless device of claim 10 ,
wherein the RRC message is a RRC connection request message.
12. The wireless device of claim 10 ,
wherein the RRC message is a RRC connection setup complete message.
13. The wireless device of claim 10 ,
wherein the RRC message is a RRC resume complete message.
14. The wireless device of claim 10 ,
wherein the UE assistance information message is provided with an assistance information report provided in response to an assistance information request received from the cellular base station.
15. The wireless device of claim 10 , wherein the first information indicates activation of the dual connectivity configuration for communication via the MCG and the SCG without explicitly providing a configuration to the wireless device.
16. The wireless device of claim 10 , wherein the wireless device is further configured to:
provide the UE assistance information message during a RRC connection setup procedure while transitioning from RRC idle mode to RRC connected mode.
17. The wireless device of claim 10 , wherein the wireless device is further configured to:
provide the UE assistance information message during a RRC resume procedure while transitioning from RRC inactive mode to RRC connected mode.
18. The wireless device of claim 10 , wherein the UE assistance information message includes an indication of one or more preferred and/or non-preferred dual connectivity frequencies.
19. A cellular base station, comprising:
an antenna;
a radio coupled to the antenna; and
a processing element coupled to the radio;
wherein the cellular base station is configured to:
receive, from a wireless device, a user equipment (UE) assistance information message including an indication, comprising one or more bits, of a preference for dual connectivity for communication via a master cell group (MCG) and a secondary cell group (SCG), the preference including activation of the SCG, wherein the UE assistance information message is received in a radio resource control (RRC) message to the cellular base station;
determine a dual connectivity configuration for communication via the MCG and the SCG for the wireless device based at least in part on the UE assistance information message; and
provide first information to the wireless device to activate the determined dual connectivity configuration for communication via the MCG and the SCG, wherein the determined dual connectivity configuration for communication via the MCG and the SCG was pre-configured at the wireless device before providing the first information.
20. The cellular base station of claim 19 , wherein the first information indicates activation of the determined dual connectivity configuration for communication via the MCG and the SCG without explicitly providing a configuration to the wireless device.