Repetition specific cyclic shifting of a non-interleaved control resource set
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a cyclic shift configuration for one or more repetitions of a non-interleaved control resource set (CORESET), and monitor for one or more physical downlink control channel candidates in the one or more repetitions of the non-interleaved CORESET based at least in part on determining the cyclic shift configuration for the one or more repetitions. Numerous other aspects are provided.
1. A method of wireless communication performed by a user equipment (UE), comprising:
determining a cyclic shift configuration for one or more repetitions of a control resource set (CORESET), the CORESET including one or more resource element group (REG) bundles and control channel element (CCE) to REG mapping that corresponds to consecutive REG bundles in a frequency domain; and
monitoring for one or more physical downlink control channel (PDCCH) candidates in the one or more repetitions of the CORESET based at least in part on the cyclic shift configuration, wherein the cyclic shift configuration identifies a frequency domain cyclic shift for the one or more REG bundles.
2. The method of claim 1 , wherein the CORESET is encoded with a plurality of PDCCH coded bits, and
wherein the cyclic shift configuration identifies a cyclic shift for the plurality of PDCCH coded bits.
3. The method of claim 1 , wherein the cyclic shift configuration identifies the frequency domain cyclic shift in terms of a quantity of REG bundles.
4. The method of claim 1 , wherein a first cyclic shift configuration for a first repetition of the CORESET identifies a first cyclic shift index, and a second cyclic shift configuration for a second repetition of the CORESET identifies a second cyclic shift index.
5. The method of claim 1 , further comprising:
receiving the cyclic shift configuration for the one or more repetitions of the CORESET via radio resource control signaling.
6. The method of claim 1 , wherein the cyclic shift configuration of a repetition of the one or more repetitions of the CORESET is based at least in part on a starting symbol index of the repetition.
7. The method of claim 1 , wherein the cyclic shift configuration is based at least in part on a total quantity of repetitions of the CORESET.
8. The method of claim 1 , wherein one or more demodulation reference signals of the one or more repetitions of the CORESET are configured to be time domain bundled.
9. The method of claim 1 , wherein the CORESET is encoded with a plurality of PDCCH coded bits, and wherein determining the cyclic shift configuration for the one or more repetitions of the CORESET comprises:
determining a sub-block interleaving configuration for the plurality of PDCCH coded bits of the one or more repetitions of the CORESET.
10. The method of claim 9 , wherein the sub-block interleaving configuration for a repetition of the one or more repetitions of the CORESET is based at least in part on at least one of:
a starting symbol index of the repetition,
a total quantity of repetitions of the CORESET, or
a slot index of the repetition.
11. The method of claim 1 , wherein the CORESET is encoded with a plurality of PDCCH coded bits, and wherein determining the cyclic shift configuration for the one or more repetitions of the CORESET comprises:
determining a bit interleaving configuration for the plurality of PDCCH coded bits of the one or more repetitions.
12. The method of claim 11 , wherein the bit interleaving configuration for a repetition of the one or more repetitions of the CORESET is based at least in part on at least one of:
a starting symbol index of the repetition,
a total quantity of repetitions of the CORESET, or
a slot index of the repetition.
13. A network entity for wireless communication, comprising:
one or more memories; and
one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to:
determine a cyclic shift configuration for one or more repetitions of a control resource set (CORESET), the CORESET including one or more resource element group (REG) bundles and control channel element (CCE) to REG mapping that corresponds to consecutive REG bundles in a frequency domain; and
transmit one or more physical downlink control channel (PDCCH) candidates in the one or more repetitions of the CORESET based at least in part on the cyclic shift configuration, wherein the cyclic shift configuration identifies a frequency domain cyclic shift for the one or more REG bundles.
14. A method of wireless communication performed by a network entity, comprising:
determining a cyclic shift configuration for one or more repetitions of a control resource set (CORESET), the CORESET including one or more resource element group (REG) bundles and control channel element (CCE) to REG mapping that corresponds to consecutive REG bundles in a frequency domain; and
transmitting one or more physical downlink control channel (PDCCH) candidates in the one or more repetitions of the CORESET based at least in part on the cyclic shift configuration, wherein the cyclic shift configuration identifies a frequency domain cyclic shift for the one or more REG bundles.
15. The method of claim 14 , wherein the CORESET is encoded with a plurality of PDCCH coded bits, and
wherein the cyclic shift configuration identifies a cyclic shift for the plurality of PDCCH coded bits.
16. The method of claim 14 , wherein the cyclic shift 16 configuration identifies the frequency domain cyclic shift in terms of a quantity of REG bundles.
17. The method of claim 14 , wherein a first cyclic shift configuration for a first repetition of the CORESET identifies a first cyclic shift index, and a second cyclic shift configuration for a second repetition of the CORESET identifies a second cyclic shift index.
18. The method of claim 14 , further comprising:
transmitting the cyclic shift configuration for the one or more repetitions of the CORESET via radio resource control signaling.
19. The method of claim 14 , wherein the cyclic shift configuration of a repetition of the one or more repetitions of the CORESET is based at least in part on a starting symbol index of the repetition.
20. The method of claim 14 , wherein the cyclic shift configuration is based at least in part on a total quantity of repetitions of the CORESET.
21. The method of claim 14 , wherein one or more demodulation reference signals of the one or more repetitions of the CORESET are configured to be time domain bundled.
22. The method of claim 14 , wherein the CORESET is encoded with a plurality of PDCCH coded bits, and wherein determining the cyclic shift configuration for the one or more repetitions of the CORESET comprises:
determining a sub-block interleaving configuration for the plurality of PDCCH coded bits of the one or more repetitions.
23. The method of claim 22 , wherein the sub-block interleaving configuration for a repetition of the one or more repetitions of the CORESET is based at least in part on at least one of:
a starting symbol index of the repetition,
a total quantity of repetitions of the CORESET, or
a slot index of the repetition.
24. The method of claim 14 , wherein the CORESET is encoded with a plurality of PDCCH coded bits, and wherein determining the cyclic shift configuration for the one or more repetitions of the CORESET comprises:
determining a bit interleaving configuration for the plurality of PDCCH coded bits of the one or more repetitions.
25. The method of claim 24 , wherein the bit interleaving configuration for a repetition of the one or more repetitions of the CORESET is based at least in part on at least one of:
a starting symbol index of the repetition,
a total quantity of repetitions of the CORESET, or
a slot index of the repetition.
26. A user equipment (UE) for wireless communication, comprising:
one or more memories; and
one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to:
determine a cyclic shift configuration for one or more repetitions of a control resource set (CORESET), the CORESET including one or more resource element group (REG) bundles and control channel element (CCE) to REG mapping that corresponds to consecutive REG bundles in a frequency domain; and
monitor for one or more physical downlink control channel (PDCCH) candidates in the one or more repetitions of the CORESET based at least in part on determining the cyclic shift configuration, wherein the cyclic shift configuration identifies a frequency domain cyclic shift for the one or more REG bundles.
27. The UE of claim 26 , wherein the cyclic shift configuration is received via radio resource control signaling from a network entity.
28. The UE of claim 26 , wherein the cyclic shift configuration is determined based at least in part on a starting symbol index associated with each repetition.