Frequency domain resource processing method, frequency domain resource configuration method, and related device

1 . A method for frequency domain resource processing, performed by an Integrated Access Backhaul (IAB) node, comprising:

sending an expected frequency domain resource parameter to a first device, wherein the frequency domain resource parameter comprises a resource type, the resource type comprises a shared resource type, wherein the shared resource type is simultaneously usable by a distributed unit (DU) of the IAB node and a mobile termination (MT) of the IAB node;

obtaining frequency domain configuration information from the first device, wherein the frequency domain configuration information comprises configuration information of a guard band configured for a second device on the IAB node; and

performing information transmission based on the frequency domain configuration information,

wherein the configuration information of the guard band specifies a location of the guard band relative to a frequency domain resource for the second device, comprising at least one of the following:

the guard band being placed at a frequency domain location adjacent to an upper boundary of the frequency domain resource for the second device;

the guard band being placed at a frequency domain location adjacent to a lower boundary of the frequency domain resource for the second device; or

the guard band being placed at the smallest frequency domain distance away from a frequency domain resource for a third device in the frequency domain resource for the second device, wherein the third device is a device other than the second device on the IAB node.

2 . The method according to claim 1 ,

wherein the frequency domain configuration information further comprises configuration information of a frequency domain resource for the DU of the IAB node.

3 . The method according to claim 2 , wherein the configuration information of the frequency domain resource for the DU comprises a resource type of the frequency domain resource for the DU.

4 . The method according to claim 2 , further comprising:

receiving first indication information from the first device,

wherein the first indication information is used to indicate a frequency domain resource of a soft resource type in the frequency domain resource for the DU to be used as a frequency domain resource of a first type; the first type comprises at least one of the following: a hard resource type, a not-available resource type, or the shared resource type; and a frequency domain resource of the hard resource type is only used by the DU of the IAB node.

5 . The method according to claim 2 , wherein the configuration information of the frequency domain resource for the DU comprises a resource location of the frequency domain resource for the DU.

6 . The method according to claim 2 , wherein a configuration granularity of the frequency domain resource for the DU is predefined in a protocol or configured by a first device.

7 . The method according to claim 2 , wherein a frequency domain resource of a second type in the frequency domain resource for the DU is a periodic frequency domain resource,

wherein the second type comprises at least one of the following: a hard resource type, a soft resource type, a not-available resource type, or the shared resource type.

8 . The method according to claim 2 , wherein a resource type of an overlapping resource between the frequency domain resource for the DU and a first frequency domain resource is the shared resource type,

wherein the first frequency domain resource is a frequency domain resource for a DU of a parent node of the IAB node.

9 . The method according to claim 2 , wherein the configuration information of the frequency domain resource for the DU comprises a maximum transmit power of at least one type of frequency domain resource in the frequency domain resource for the DU.

10 . The method according to claim 2 , wherein a resource type of a frequency domain resource that is in the frequency domain resource for the DU and that is carried in first signaling is a hard resource type,

wherein the first signaling comprises at least one of the following: a synchronization signal block (SSB), a physical downlink control channel (PDCCH), or a channel state information-reference signal (CSI-RS).

11 . The method according to claim 1 , further comprising:

wherein the frequency domain resource parameter further comprises at least one of the following: a bandwidth, or a frequency domain location.

12 . The method according to claim 2 , wherein the configuration information of the guard band further comprises: a bandwidth of the guard band.

13 . The method according to claim 12 , wherein the location of the guard band further comprises at least one of the following:

the upper boundary of the frequency domain resource for the second device; or

the lower boundary of the frequency domain resource for the second device.

14 . The method according to claim 2 , further comprising:

when the guard band is configured in the MT of the IAB node, when an overlap exists between a scheduled frequency domain resource for the MT and the guard band, performing, by the MT, rate matching or puncturing on the overlap.

15 . The method according to claim 2 , further comprising:

when the guard band is configured in the DU of the IAB node, sending the configuration information of the guard band to a fourth device scheduled by the DU.

16 . The method according to claim 2 , further comprising:

sending an expected guard band parameter to the first device,

wherein the guard band parameter comprises at least one of the following: a bandwidth of the guard band or a frequency domain location of the guard band.

17 . The method according to claim 2 , wherein when the frequency domain configuration information comprises only the configuration information of the guard band, the frequency domain resource for the DU of the IAB node is on a first side of the guard band, and a frequency domain resource for the MT of the IAB node is on a second side of the guard band.

18 . The method according to claim 2 , wherein a frequency domain resource for the IAB node and a frequency domain resource for a parent node of the IAB node are frequency domain resources allocated in a first allocation direction, wherein

the first allocation direction is predefined in a protocol or configured by a first device.

19 . An Integrated Access Backhaul (IAB) node, comprising:

a memory storing a computer program; and

a processor coupled to the memory and configured to execute the computer program to perform a method for frequency domain resource processing, the method comprising:

sending an expected frequency domain resource parameter to a first device, wherein the frequency domain resource parameter comprises a resource type, the resource type comprises a shared resource type, wherein the shared resource type is simultaneously usable by a distributed unit (DU) of the IAB node and a mobile termination (MT) of the IAB node;

obtaining frequency domain configuration information from the first device, wherein the frequency domain configuration information comprises configuration information of a guard band configured for a second device on the IAB node; and

performing information transmission based on the frequency domain configuration information,

wherein the configuration information of the guard band specifies a location of the guard band relative to a frequency domain resource for the second device, comprising at least one of the following:

the guard band being placed at a frequency domain location adjacent to an upper boundary of the frequency domain resource for the second device;

the guard band being placed at a frequency domain location adjacent to a lower boundary of the frequency domain resource for the second device; or

the guard band being placed at the smallest frequency domain distance away from a frequency domain resource for a third device in the frequency domain resource for the second device, wherein the third device is a device other than the second device on the IAB node.

20 . A non-transitory computer-readable storage medium, storing a computer program, when the computer program is executed by a processor, performs a method for frequency domain resource processing, the method comprising:

sending an expected frequency domain resource parameter to a first device, wherein the frequency domain resource parameter comprises a resource type, the resource type comprises a shared resource type, wherein the shared resource type is simultaneously usable by a distributed unit (DU) of an Integrated Access Backhaul (IAB) node and a mobile termination (MT) of the IAB node;

obtaining frequency domain configuration information from the first device, wherein the frequency domain configuration information comprises configuration information of a guard band configured for a second device on the IAB node; and

performing information transmission based on the frequency domain configuration information,

wherein the configuration information of the guard band specifies a location of the guard band relative to a frequency domain resource for the second device, comprising at least one of the following:

the guard band being placed at a frequency domain location adjacent to an upper boundary of the frequency domain resource for the second device;

the guard band being placed at a frequency domain location adjacent to a lower boundary of the frequency domain resource for the second device; or

the guard band being placed at the smallest frequency domain distance away from a frequency domain resource for a third device in the frequency domain resource for the second device, wherein the third device is a device other than the second device on the IAB node.