Methods for using in-carrier guard bands

1. A method, performed by a wireless transmit receive unit, WTRU, the method comprising:

receiving an indication of a configuration of a set of guard bands associated with a bandwidth part;

receiving an indication of a channel resource configuration associated with at least one guard band of the set of guard bands;

performing a first measurement on at least one received reference signal in resources of the channel resource configuration excluding resources in an activated guard band;

receiving an indication that a guard band of the at least one guard band is deactivated; and

performing a second measurement on at least one received reference signal in resources of the channel resource configuration including resources in the deactivated guard band.

2. The method of claim 1 , further comprising:

transmitting at least one report of measurement information based on the first or second measurement on at least one received reference signal.

3. The method of claim 1 , further comprising:

activating or deactivating the at least one guard band of the set of guard bands; and

transmitting or receiving information in the deactivated guard band of the bandwidth part that is affected by the activation or deactivation of the at least one guard band.

4. The method of claim 3 , wherein transmitting or receiving information in the deactivated guard band of the bandwidth part occurs within a channel occupancy time.

5. The method of claim 1 , wherein receiving the configuration of a set of guard bands associated with a bandwidth part is established by higher layer signaling.

6. The method of claim 1 , wherein receiving the indication that the guard band of the at least one guard band is deactivated, comprises receiving any of:

a channel occupancy time frequency structure for a set of acquired subbands;

an information element in a physical downlink control channel, PDCCH transmission;

a physical downlink control channel transmission;

downlink control information;

a medium access control-control element;

an information element in a physical downlink shared channel transmission;

a physical downlink shared channel transmission;

a resource allocation, RA, of a scheduling assignment or grant;

a RA mapping to a physical resource block; or

a later-received message that changes a RA for the bandwidth part.

7. The method of claim 1 , wherein receiving the configuration of a set of guard bands associated with a bandwidth part comprises receiving information regarding any of:

a size of a guard band of the set of guard bands;

a position or location of the guard band;

an indication of the guard band being any of: statically configured, dynamically configured, activated, or deactivated;

a presence of the guard band within a channel occupancy time;

a trigger for activation or deactivation of the guard band; or

a beam identifier.

8. The method of claim 1 , wherein receiving the indication of the channel resource configuration associated with at least one guard band of the set of guard bands comprises receiving a channel state information reference signal resource configuration.

9. A wireless transmit/receive unit, WTRU, comprising:

a transceiver and processor configured to:

receive an indication of a configuration of a set of guard bands associated with a bandwidth part;

receive an indication of a channel resource configuration associated with at least one guard band of the set of guard bands;

perform a first measurement on at least one received reference signal in resources of the channel resource configuration excluding resources in an activated guard band;

receive an indication that the guard band of the at least one guard band is deactivated; and

perform a second measurement on the at least one received reference signal in resources of the channel resource configuration including resources in the at least one deactivated guard band.

10. The WTRU of claim 9 , wherein the processor is further configured to transmit at least one report of measurement information based on the first or second measurement on at least one received reference signal.

11. The WTRU of claim 9 , wherein:

the processor is further configured to activate or deactivate the at least one guard band; and

the transceiver is further configured to transmit or receive information in the deactivated guard band of the bandwidth part that is affected by the activation or deactivation of the at least one guard band.

12. The WTRU of claim 11 , wherein the transceiver transmits or receives information in the deactivated guard band of the bandwidth part that is affected by the activation or deactivation of the at least one guard band within a channel occupancy time.

13. The WTRU of claim 9 , wherein the transceiver received configuration of a set of guard bands associated with a bandwidth part is established by higher layer signaling.

14. The WTRU of claim 9 , wherein the transceiver receives an indication that the guard band of the at least one guard band is deactivated comprises the transceiver receiving any of:

a channel occupancy time frequency structure for a set of acquired subbands;

an information element in a physical downlink control channel transmission;

a physical downlink control channel transmission;

a downlink control information element;

a medium access control-control element;

an information element in a physical downlink shared channel transmission;

a physical downlink shared channel transmission;

a resource allocation, RA, of a scheduling assignment or grant;

a RA mapping to a physical resource block; or

a later-received message that changes a RA for the bandwidth part.

15. The WTRU of claim 14 , wherein the transceiver receiving a later-received message that changes the RA of the bandwidth part subsequently enables demodulation of information previously received in the bandwidth part before reception of the later-received message.

16. The WTRU of claim 9 , wherein the transceiver receives the configuration of the set of guard bands associated with a bandwidth part comprises receiving information regarding any of:

a size of a guard band in the set of guard bands;

a position or location of the guard band;

an indication of the guard band being statically configured, dynamically configured, activated, or deactivated;

a presence of the guard band within a channel occupancy time;

a trigger for activation or deactivation of the guard band; or

a beam identifier.

17. The WTRU of claim 9 , wherein the transceiver is configured to receive the channel resource configuration associated with at least one guard band comprises the transceiver configured to receive a channel state information reference signal resource configuration.

18. A non-transient computer readable storage medium comprising instructions which when executed by a computer cause the computer to carry out the method of:

receiving an indication of a configuration of a set of guard bands associated with a bandwidth part;

receiving an indication of a channel resource configuration associated with at least one guard band of the set of guard bands;

performing a first measurement on the at least one received reference signal in resources of the channel resource configuration excluding resources in an activated guard band;

receiving an indication that a guard band of the at least one guard band is deactivated; and

performing a second measurement on the at least one received reference signal in resources of the channel resource configuration including resources in the at least one deactivated guard band.

19. The non-transient computer readable storage medium on claim 18 , further comprising:

transmitting at least one report of measurement information based on the first or second measurement on the at least one received reference signal.

20. The non-transient computer readable storage medium on claim 18 , further comprising:

activating or deactivating the at least one guard band of the set of guard bands; and

transmitting or receiving information in the deactivated guard band of the bandwidth part that is affected by the activation or deactivation of the at least one guard band.