Carrier capability signaling with regard to multiple carrier numerologies
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a capability of the UE relating to a carrier configuration of the UE, wherein the carrier configuration relates to carriers of at least two different numerologies; and transmit information identifying the capability, wherein the information identifying the capability identifies a bandwidth or number of carriers that is supported for carriers of a first numerology and one or more scaling values associated with one or more numerologies other than the first numerology. A base station may receive information identifying a capability of a UE relating to a carrier configuration of the UE, wherein the carrier configuration relates to carriers of at least two different numerologies; and determine a configuration for communication with the UE based at least in part on the information identifying the capability. Numerous other aspects are provided.
1. A method of wireless communication performed by a user equipment (UE), comprising:
determining a capability of the UE relating to a carrier configuration of the UE, wherein the carrier configuration relates to carriers of at least two different numerologies,
wherein the capability is determined based at least in part on:
a maximum bandwidth that is supported for carriers of a first numerology,
one or more scaling values associated with one or more numerologies other than the first numerology,
a number of receive antennas for a corresponding aggregated carrier, and
a number of aggregated carriers; and
transmitting information identifying the capability, wherein the information identifying the capability identifies:
the maximum bandwidth that is supported for the carriers of the first numerology, and
the one or more scaling values associated with the one or more numerologies other than the first numerology.
2. The method of claim 1 , wherein the carrier configuration is a multimedia multicast-broadcast service (MBMS) carrier configuration, and wherein the carriers are MBMS carriers.
3. The method of claim 1 , wherein the information identifying the capability is based at least in part on a baseband limitation of the UE.
4. The method of claim 1 , wherein the one or more scaling values and the bandwidth or number of carriers are indicative of whether the UE concurrently supports a combination of a bandwidth or number of carriers with the first numerology and a bandwidth or number of carriers with a second numerology of the one or more numerologies other than the first numerology.
5. The method of claim 1 , wherein the information identifying the capability is provided based at least in part on a radio resource control message in association with a multimedia multicast-broadcast service (MBMS) receive-only mode (ROM) session.
6. The method of claim 1 , wherein the carriers are based at least in part on carriers with which the UE is associated with an active multicast-broadcast single-frequency network reception.
7. The method of claim 1 , further comprising:
starting a multimedia multicast-broadcast service (MBMS) receive-only mode (ROM) session; and
transmitting an interest indicator associated with the MBMS ROM session.
8. The method of claim 7 , wherein the information identifying the capability is provided to a base station associated with a unicast communication with the UE.
9. The method of claim 7 , wherein the interest indicator further comprises at least one of a numerology for the MBMS ROM session or a bandwidth for the MBMS ROM session.
10. The method of claim 7 , wherein transmitting the information identifying the capability or the interest indicator comprises initiating a tracking area update with regard to a network in association with the MBMS ROM session.
11. The method of claim 7 , wherein transmitting the information identifying the capability comprises reattaching to a network.
12. The method of claim 1 , wherein the capability is determined based at least in part on a value I c (XkHz , wherein I c (XkHz =1 if the corresponding carrier c has a worst case numerology of X kHz, and is 0 otherwise.
13. A method of wireless communication performed by a base station (BS), comprising:
receiving information identifying a capability of a user equipment (UE) relating to a carrier configuration of the UE, wherein the carrier configuration relates to carriers of at least two different numerologies, wherein the information identifying the capability identifies a maximum bandwidth that is supported for carriers of a first numerology and one or more scaling values associated with one or more numerologies other than the first numerology; and
determining a configuration for a communication with the UE based at least in part on the information identifying the capability,
wherein the capability is based at least in part on:
the maximum bandwidth capability that is supported for carriers of the first numerology,
the one or more scaling values associated with the one or more numerologies other than the first numerology,
a number of receive antennas for a corresponding aggregated carrier, and
a number of aggregated carriers.
14. The method of claim 13 , wherein the carrier configuration is a multimedia multicast-broadcast service (MBMS) carrier configuration, and wherein the carriers are MBMS carriers.
15. The method of claim 13 , wherein the one or more scaling values and the bandwidth or number of carriers are indicative of whether the UE concurrently supports a combination of a bandwidth or number of carriers with the first numerology and a bandwidth or number of carriers with a second numerology of the one or more numerologies other than the first numerology.
16. The method of claim 13 , wherein the communication is a unicast communication with the UE, and wherein the method further comprises:
receiving an interest indicator associated with a multimedia multicast-broadcast system (MBMS) receive-only mode (ROM) session of the UE.
17. The method of claim 16 , wherein the interest indicator further comprises at least one of a numerology for the MBMS ROM session or a bandwidth for the MBMS ROM session.
18. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
determine a capability of the UE relating to a carrier configuration of the UE, wherein the carrier configuration relates to carriers of at least two different numerologies,
wherein the capability is determined based at least in part on:
a maximum bandwidth that is supported for carriers of a first numerology,
one or more scaling values associated with one or more numerologies other than the first numerology,
a number of receive antennas for a corresponding aggregated carrier, and
a number of aggregated carriers; and
transmit information identifying the capability, wherein the information identifying the capability identifies:
the maximum bandwidth that is supported for the carriers of the first numerology, and
the one or more scaling values associated with the one or more numerologies other than the first numerology.
19. The UE of claim 18 , wherein the carrier configuration is a multimedia multicast-broadcast service (MBMS) carrier configuration, and wherein the carriers are MBMS carriers.
20. The UE of claim 18 , wherein the one or more scaling values and the bandwidth or number of carriers are indicative of whether the UE concurrently supports a combination of a bandwidth or number of carriers with a first numerology and a bandwidth or number of carriers with a second numerology of the one or more numerologies other than the first numerology.
21. The UE of claim 18 , wherein the information identifying the capability is provided based at least in part on a radio resource control message in association with a multimedia multicast-broadcast service (MBMS) receive-only mode (ROM) session.
22. The UE of claim 18 , further comprising:
starting a multimedia multicast-broadcast service (MBMS) receive-only mode (ROM) session; and
transmitting an interest indicator associated with the MBMS ROM session.
23. The UE of claim 22 , wherein the information identifying the capability is provided to a base station associated with a unicast communication with the UE.
24. The UE of claim 22 , wherein the interest indicator further comprises at least one of a numerology for the MBMS ROM session or a bandwidth for the MBMS ROM session.
25. The method of claim 13 , wherein the capability based at least in part on a value I c (XkHz , wherein I c (XkHz =1 if the corresponding carrier c has a worst case numerology of X kHz, and is 0 otherwise.
26. A base station for wireless communication, comprising:
a memory; and
one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
receive information identifying a capability of a user equipment (UE) relating to a carrier configuration of the UE, wherein the carrier configuration relates to carriers of at least two different numerologies, wherein the information identifying the capability identifies a maximum bandwidth that is supported for carriers of a first numerology and one or more scaling values associated with one or more numerologies other than the first numerology; and
determine a configuration for a communication with the UE based at least in part on the information identifying the capability,
wherein the capability is based at least in part on:
the maximum bandwidth capability that is supported for carriers of the first numerology,
the one or more scaling values associated with the one or more numerologies other than the first numerology,
a number of receive antennas for a corresponding aggregated carrier, and
a number of aggregated carriers.
27. The base station of claim 26 , wherein the carrier configuration is a multimedia multicast-broadcast service (MBMS) carrier configuration, and wherein the carriers are MBMS carriers.
28. The base station of claim 26 , wherein the communication is a unicast communication with the UE, and wherein the memory and the one or more processors are further configured to:
receive an interest indicator associated with a multimedia multicast-broadcast system (MBMS) receive-only mode (ROM) session of the UE.
29. The base station of claim 28 , wherein the interest indicator further comprises at least one of a numerology for the MBMS ROM session or a bandwidth for the MBMS ROM session.
30. The UE of claim 18 , wherein the capability is determined based at least in part on a value I c (XkHz , wherein I c (XkHz =1 if the corresponding carrier c has a worst case numerology of X kHz, and is 0 otherwise.