Direct current location with bandwidth part (BWP) hopping
Certain aspects of the present disclosure provide techniques for providing direct current locations of bandwidth parts (BWPs) in a BWP hopping pattern. Certain aspects relate to a method for wireless communication by a user equipment (UE). In some examples, the UE may receive, from a base station (BS), a request for uplink direct current location information of the UE, wherein the UE is configured to transmit to the BS on an uplink according to a frequency hopping pattern for hopping between a plurality of uplink bandwidth parts corresponding to different frequency bandwidths. In some examples, the UE may transmit, to the BS, at least one uplink direct current location applicable to the plurality of uplink bandwidth parts. In some examples, the UE may transmit, to the BS, on the uplink according to the frequency hopping pattern.
1. A user equipment (UE), comprising:
a memory comprising instructions; and
one or more processors configured to execute the instructions and cause the UE to:
receive, from a base station (BS), a request for uplink direct current location information of the UE, wherein the UE is configured to transmit to the BS on an uplink over a plurality of uplink bandwidth parts corresponding to different frequency bandwidths by hopping between the plurality of uplink bandwidth parts according to a frequency hopping pattern;
transmit, to the BS, an indication of at least one uplink direct current location applicable to the plurality of uplink bandwidth parts, wherein the at least one uplink direct current location comprises a first uplink direct current location for one uplink bandwidth part of the plurality of uplink bandwidth parts and the first uplink direct current location for the one uplink bandwidth part corresponds to a relative uplink direct current location for each of other uplink bandwidth parts in the plurality of uplink bandwidth parts, and wherein a relative frequency location corresponding to the relative uplink direct current location within the each of the other uplink bandwidth parts is the same as a first frequency location corresponding to the first uplink direct current location within the one uplink bandwidth part; and
transmit, to the BS, on the uplink according to the frequency hopping pattern.
2. The UE of claim 1 , wherein the at least one uplink direct current location comprises a single uplink direct current location applicable to the plurality of uplink bandwidth parts.
3. The UE of claim 2 , wherein the single uplink direct current location is an actual uplink direct current location of one of the plurality of uplink bandwidth parts, and wherein the single uplink direct current location is a relative direct current location for each of the plurality of uplink bandwidth parts other than the one of the plurality of uplink bandwidth parts.
4. The UE of claim 3 , wherein the frequency hopping pattern comprises a sequence of bandwidth parts, and wherein the one of the plurality of uplink bandwidth parts comprises a first bandwidth part in time of the sequence of bandwidth parts.
5. The UE of claim 2 , wherein the single uplink direct current location is a relative direct current location for each of the plurality of uplink bandwidth parts.
6. The UE of claim 2 , wherein the UE is configured with a plurality of different frequency hopping patterns, and wherein the single uplink direct current location is applicable to each of the plurality of different frequency hopping patterns.
7. The UE of claim 2 , wherein the UE is configured with a plurality of different frequency hopping patterns, and wherein the one or more processors are configured to cause the UE to transmit, to the BS, a different single uplink direct current location for each of the plurality of different frequency hopping patterns.
8. The UE of claim 1 , wherein the at least one uplink direct current location comprises a set of uplink direct current locations including a plurality of uplink direct current locations applicable to at least the plurality of uplink bandwidth parts.
9. The UE of claim 8 , wherein the UE is configured with a plurality of different frequency hopping patterns, and the at least one uplink direct current location comprises a plurality of sets of uplink direct current locations each applicable to a different one of the plurality of different frequency hopping patterns.
10. The UE of claim 8 , wherein the UE is configured with a plurality of different frequency hopping patterns, and wherein the plurality of uplink direct current locations comprise a union of actual uplink direct current locations of bandwidth parts used in the plurality of different frequency hopping patterns.
11. A base station (BS), comprising:
a memory comprising instructions; and
one or more processors configured to execute the instructions and cause the BS to:
transmit, to a user equipment (UE), a request for uplink direct current location information of the UE, wherein the BS is configured to receive on an uplink from the UE over a plurality of uplink bandwidth parts corresponding to different frequency bandwidths according to a frequency hopping pattern for hopping between the plurality of uplink bandwidth parts;
receive, from the UE, an indication of at least one uplink direct current location applicable to the plurality of uplink bandwidth parts, wherein the at least one uplink direct current location comprises a first uplink direct current location for one uplink bandwidth part of the plurality of uplink bandwidth parts and the first uplink direct current location for the one uplink bandwidth part corresponds to a relative uplink direct current location for each of other uplink bandwidth parts in the plurality of uplink bandwidth parts, and wherein a relative frequency location corresponding to the relative uplink direct current location within the each of the other uplink bandwidth parts is the same as a first frequency location corresponding to the first uplink direct current location within the one uplink bandwidth part; and
receive, from the UE, on the uplink according to the frequency hopping pattern.
12. The BS of claim 11 , wherein the at least one uplink direct current location comprises a single uplink direct current location applicable to the plurality of uplink bandwidth parts.
13. The BS of claim 12 , wherein the single uplink direct current location is an actual uplink direct current location of one of the plurality of uplink bandwidth parts, and wherein the single uplink direct current location is a relative direct current location for each of the plurality of uplink bandwidth parts other than the one of the plurality of uplink bandwidth parts.
14. The BS of claim 13 , wherein the frequency hopping pattern comprises a sequence of bandwidth parts, and wherein the one of the plurality of uplink bandwidth parts comprises a first bandwidth part in time of the sequence of bandwidth parts.
15. The BS of claim 12 , wherein the single uplink direct current location is a relative direct current location for each of the plurality of uplink bandwidth parts.
16. The BS of claim 12 , wherein the single uplink direct current location is applicable to each of a plurality of different frequency hopping patterns.
17. The BS of claim 12 , wherein the one or more processors are configured to execute the instructions and cause the BS to:
receive, from the UE, a different single uplink direct current location for each of a plurality of different frequency hopping patterns.
18. The BS of claim 11 , wherein the at least one uplink direct current location comprises a set of uplink direct current locations including a plurality of uplink direct current locations applicable to at least the plurality of uplink bandwidth parts.
19. The BS of claim 18 , wherein the at least one uplink direct current location comprises a plurality of sets of uplink direct current locations each applicable to a different one of a plurality of different frequency hopping patterns.
20. The BS of claim 18 , wherein the plurality of uplink direct current locations comprise a union of actual uplink direct current locations of bandwidth parts used in a plurality of different frequency hopping patterns.
21. A method for wireless communication by a user equipment (UE), comprising:
receiving, from a base station (BS), a request for uplink direct current location information of the UE, wherein the UE is configured to transmit to the BS on an uplink over a plurality of uplink bandwidth parts corresponding to different frequency bandwidths by hopping between the plurality of uplink bandwidth parts according to a frequency hopping pattern;
transmitting, to the BS, an indication of at least one uplink direct current location applicable to the plurality of uplink bandwidth parts, wherein the at least one uplink direct current location comprises a first uplink direct current location for one uplink bandwidth part of the plurality of uplink bandwidth parts and the first uplink direct current location for the one uplink bandwidth part corresponds to a relative uplink direct current location for each of other uplink bandwidth parts in the plurality of uplink bandwidth parts, and wherein a relative frequency location corresponding to the relative uplink direct current location within the each of the other uplink bandwidth parts is the same as a first frequency location corresponding to the first uplink direct current location within the one uplink bandwidth part; and
transmitting, to the BS, on the uplink according to the frequency hopping pattern.
22. A method of wireless communication by a base station (BS), comprising:
transmitting, to a user equipment (UE), a request for uplink direct current location information of the UE, wherein the BS is configured to receive on an uplink from the UE over a plurality of uplink bandwidth parts corresponding to different frequency bandwidths according to a frequency hopping pattern for hopping between the plurality of uplink bandwidth parts;
receiving, from the UE, an indication of at least one uplink direct current location applicable to the plurality of uplink bandwidth parts, wherein the at least one uplink direct current location comprises a first uplink direct current location for one uplink bandwidth part of the plurality of uplink bandwidth parts and the first uplink direct current location for the one uplink bandwidth part corresponds to a relative uplink direct current location for each of other uplink bandwidth parts in the plurality of uplink bandwidth parts, and wherein a relative frequency location corresponding to the relative uplink direct current location within the each of the other uplink bandwidth parts is the same as a first frequency location corresponding to the first uplink direct current location within the one uplink bandwidth part; and
receiving, from the UE, on the uplink according to the frequency hopping pattern.