Metric-based band combination selection

1 . A method of wireless communication performed at a user equipment (UE), comprising:

transmitting, to a network node, a first indication of a first UE radio capability, the first UE radio capability indicating the UE supports a plurality of evolved universal terrestrial radio access network (E-UTRAN) new radio (NR) dual connectivity (EN-DC) band combinations;

receiving, from the network node, a second indication of an active EN-DC band combination of the plurality of EN-DC band combinations based on transmitting the first indication of the first UE radio capability; and

transmitting, to the network node, that received the first indication, based on an actual data throughput metric associated with the active EN-DC band combination being less than a data throughput threshold value, a third indication of a second UE radio capability indicating the UE supports one or more non-active EN-DC combinations of the plurality of EN-DC band combinations, each one of the one or more non-active EN-DC combinations being associated with a respective potential data throughput metric, of a plurality of potential data throughput metrics, that is greater than the data throughput threshold value.

2 . The method of claim 1 , wherein:

each EN-DC band combination of the plurality of EN-DC band combinations comprises a first radio access technology (RAT) band and a second RAT band; and

the second RAT band comprises one or both of a frequency division duplexing (FDD) band or a time division duplexing (TDD) band.

3 . The method of claim 2 , wherein the first RAT band is a long-term evolution (LTE) band and the second RAT band is a new radio (NR) sub-6 GHz band or an NR millimeter wave band.

4 . The method of claim 1 , further comprising identifying the one or more non-active EN-DC combinations based on the plurality of potential data throughput metrics and the actual data throughput metric.

5 . The method of claim 4 , further comprising:

transmitting, to the network node, a request for a UE radio capability update based on identifying the one or more non-active EN-DC combinations; and

receiving, from the network node, a UE radio capability inquiry based on transmitting the request, wherein the UE transmits the third indication of the second UE radio capability based on receiving the UE radio capability inquiry.

6 . The method of claim 1 , wherein the third indication is transmitted based on the actual data throughput metric being less than the data throughput threshold value for a period of time.

7 . The method of claim 1 , further comprising measuring the actual data throughput metric at different instances of time.

8 . The method of claim 7 , wherein each instance of time of the different instances of time corresponds to a channel condition associated with the active EN-DC band combination.

9 . An apparatus for wireless communications at a user equipment (UE), comprising:

at least one processor; and

at least one memory coupled with the at least one processor and storing instructions operable, when executed by the at least one processor, to cause the apparatus to:

transmit, to a network node, a first indication of a first UE radio capability, the first UE radio capability indicating the UE supports for a plurality of evolved universal terrestrial radio access network (E-UTRAN) new radio (NR) dual connectivity (EN-DC) band combinations;

receive, from the network node, a second indication of an active EN-DC band combination of the plurality of EN-DC band combinations based on transmitting the first indication of the first UE radio capability; and

transmit, to the network node, that received the first indication, based on an actual data throughput metric associated with the active EN-DC band combination being less than a data throughput threshold value, a third indication of a second UE radio capability indicating the UE supports one or more non-active EN-DC combinations of the plurality of EN-DC band combinations, each one of the one or more non-active EN-DC combinations being associated with a respective potential data throughput metric, of a plurality of potential data throughput metrics, that is greater than the data throughput threshold value.

10 . The apparatus of claim 9 , wherein:

each EN-DC band combination of the plurality of EN-DC band combinations comprises a first radio access technology (RAT) band and a second RAT band; and

the second RAT band comprises one or both of a frequency division duplexing (FDD) band or a time division duplexing (TDD) band.

11 . The apparatus of claim 10 , wherein the first RAT band is a long-term evolution (LTE) band and the second RAT band is a new radio (NR) sub-6 GHz band or an NR millimeter wave band.

12 . The apparatus of claim 9 , wherein execution of the instructions further cause the apparatus to identify the one or more non-active EN-DC combinations based on the plurality of potential data throughput metrics and the actual data throughput metric.

13 . The apparatus of claim 12 , wherein execution of the instructions further cause the apparatus to:

transmit, to the network node, a request for a UE radio capability update based on identifying the one or more non-active EN-DC combinations; and

receive, from the network node, a UE radio capability inquiry based on transmitting the request, wherein the UE transmits the third indication of the second UE radio capability based on receiving the UE radio capability inquiry.

14 . The apparatus of claim 9 , wherein the third indication is transmitted based on the actual data throughput metric being less than the data throughput threshold value for a period of time.

15 . The apparatus of claim 9 , wherein execution of the instructions further cause the apparatus to measure the actual data throughput metric at different instances of time.

16 . The apparatus of claim 15 , wherein each instance of time of the different instances of time corresponds to a channel condition associated with the active EN-DC band combination.

17 . A method of wireless communication performed by a user equipment (UE), comprising:

transmitting, to a first network node, a first indication of a first UE radio capability, the first UE radio capability indicating support for a plurality of evolved universal terrestrial radio access network (E-UTRAN) new radio (NR) dual connectivity (EN-DC) band combinations;

receiving, from the first network node, a second indication of an active EN-DC band combination of the plurality of EN-DC band combinations based on transmitting the first indication of the first UE radio capability;

transmitting, to a second network node, an actual data throughput metric associated with the active EN-DC band combination;

receiving, from the second network node, a third indication of one or more non-active EN-DC combinations of the plurality of EN-DC band combinations based on transmitting the actual data throughput metric, each one of the one or more non-active EN-DC combinations associated with a respective potential data throughput metric, of a plurality of potential data throughput metrics, that is greater than a data throughput threshold value; and

transmitting, to the first network node based on the actual data throughput metric satisfying a failure condition, a fourth indication of a second UE radio capability, the second UE radio capability indicating support for the one or more non-active EN-DC combinations.

18 . The method of claim 17 , wherein:

each EN-DC band combination of the plurality of EN-DC band combinations comprises a first radio access technology (RAT) band and a second RAT band; and

the second RAT band comprises one or both of a frequency division duplexing (FDD) band or a time division duplexing (TDD) band.

19 . The method of claim 18 , wherein the first RAT band is a long-term evolution (LTE) band and the second RAT band is a new radio (NR) sub-6 GHz band or an NR millimeter wave band.

20 . The method of claim 17 , further comprising:

transmitting, to the first network node, a request for a UE radio capability update based on receiving the third indication from the second network node; and

receiving, from the first network node, a UE radio capability inquiry based on transmitting the request, wherein the UE transmits the fourth indication of the second UE radio capability based on receiving the UE radio capability inquiry.

21 . The method of claim 17 , wherein:

the first network node is a base station; and

the second network node is a network server device.

22 . The method of claim 17 , further comprising measuring the actual data throughput metric at different instances of time.

23 . The method of claim 22 , wherein each instance of time of the different instances of time corresponds to a channel condition associated with the active EN-DC band combination.

24 . An apparatus for wireless communications at a user equipment (UE), comprising:

at least one processor; and

at least one memory coupled with the at least one processor and storing instructions operable, when executed by the at least one processor, to cause the apparatus to:

transmit, to a first network node, a first indication of a first UE radio capability, the first UE radio capability indicating support for a plurality of evolved universal terrestrial radio access network (E-UTRAN) new radio (NR) dual connectivity (EN-DC) band combinations;

receive, from the first network node, a second indication of an active EN-DC band combination of the plurality of EN-DC band combinations based on transmitting the first indication of the first UE radio capability;

transmit, to a second network node, an actual data throughput metric associated with the active EN-DC band combination;

receive, from the second network node, a third indication of one or more non-active EN-DC combinations of the plurality of EN-DC band combinations based on transmitting the actual data throughput metric, each one of the one or more non-active EN-DC combinations associated with a respective potential data throughput metric, of a plurality of potential data throughput metrics, that is greater than a data throughput threshold value; and

transmit, to the first network node based on the actual data throughput metric satisfying a failure condition, a fourth indication of a second UE radio capability, the second UE radio capability indicating support for the one or more non-active EN-DC combinations.

25 . The apparatus of claim 24 , wherein:

each EN-DC band combination of the plurality of EN-DC band combinations comprises a first radio access technology (RAT) band and a second RAT band; and

the second RAT band comprises one or both of a frequency division duplexing (FDD) band or a time division duplexing (TDD) band.

26 . The apparatus of claim 25 , wherein the first RAT band is a long-term evolution (LTE) band and the second RAT band is a new radio (NR) sub-6 GHz band or an NR millimeter wave band.

27 . The apparatus of claim 24 , wherein execution of the instructions further cause the apparatus to:

transmit, to the first network node, a request for a UE radio capability update based on receiving the third indication from the second network node; and

receive, from the first network node, a UE radio capability inquiry based on transmitting the request, wherein the UE transmits the fourth indication of the second UE radio capability based on receiving the UE radio capability inquiry.

28 . The apparatus of claim 24 , wherein:

the first network node is a base station; and

the second network node is a network server device.

29 . The apparatus of claim 24 , wherein execution of the instructions further cause the apparatus to measure the actual data throughput metric at different instances of time.

30 . The apparatus of claim 29 , wherein each instance of time of the different instances of time corresponds to a channel condition associated with the active EN-DC band combination.