Method, terminal device, base station, computer readable medium for measuring cross-link interference, and methods and apparatuses for random access preamble allocation, determination, and data transmission

1. A method for measuring cross-link interference, performed by a terminal device, the method comprising:

receiving, from a base station, time-frequency resource configuration information including information of measurement time-frequency resources for measuring the cross-link interference periodically or aperiodically and information of reference signal time-frequency resources, wherein at least one of period information, time information, or frequency information for the measurement time-frequency resources is identified based on the information of reference signal time-frequency resources;

identifying the measurement time-frequency resources for measuring the cross-link interference based on the time-frequency resource configuration information;

identifying a measurement result of the cross-link interference, wherein the measurement result includes information indicating whether the terminal device is capable of being scheduled to receive downlink data on time-frequency resources; and

transmitting, to the base station, the measurement result of the cross-link interference to the base station.

2. The method of claim 1 ,

wherein the identifying the measurement time-frequency resources based on the time-frequency resource configuration information comprises: identifying, as the measurement time-frequency resources, the reference signal time-frequency resources based on the information of the reference signal time-frequency resources.

3. The method of claim 1 , wherein the time-frequency resource configuration information includes information of a set of reference signal time-frequency resources and resource index set indication information configured by the base station, and

wherein the identifying the measurement time-frequency resources based on the time-frequency resource configuration information comprises: identifying reference signal time-frequency resources for uplink sounding and the measurement time-frequency resources for downlink measurement according to the information of the set of reference signal time-frequency resources and the resource index set indication information.

4. The method of claim 1 , further comprising:

receiving, from the base station, sequence resource configuration information, wherein the sequence resource configuration information includes at least one of:

root sequence configuration of a used reference signal sequence,

a cyclic shift configuration, or

a comb structure configuration.

5. The method of claim 1 , wherein the identifying the measurement result of the cross-link interference comprises:

measuring a received signal strength on the measurement time-frequency resources directly.

6. The method of claim 1 , wherein the time-frequency resource configuration information further comprises at least one of:

periodicity information in configuration information of reference signal time-frequency resources,

separately configured periodicity information for the measurement time-frequency resources, or

separately configured time configuration information for the measurement time-frequency resources.

7. The method of claim 1 , further comprising:

transmitting a downlink measurement request to the base station,

wherein the time-frequency resource configuration information or sequence resource configuration information received from the base station is configured by the base station in response to the downlink measurement request.

8. The method of claim 1 , wherein the time-frequency resource configuration information or sequence resource configuration information received from the base station is semi-static.

9. A method for determining cross-link interference, performed by a base station, the method comprising:

configuring time-frequency resource configuration information including information of measurement time-frequency resources for measuring the cross-link interference periodically or aperiodically and information of reference signal time-frequency resources, wherein at least one of period information, time information, or frequency information for the measurement time-frequency resources is identified based on the information of reference signal time-frequency resources;

transmitting the time-frequency resource configuration information to a terminal device;

receiving, from the terminal device, a measurement result of cross-link interference, wherein the measurement result includes information indicating whether the terminal device is capable of being scheduled to receive downlink data on time-frequency resources, and the measurement time-frequency resources are identified based on the time-frequency resource configuration information; and

scheduling the terminal device based on the measurement result.

10. The method of claim 9 , wherein the configuring the time-frequency resource configuration information comprises: configuring, as the measurement time-frequency resources, the reference signal time-frequency resources for the terminal device based on the information of the reference signal time-frequency resources.

11. The method of claim 9 , wherein the configuring the time-frequency resource configuration information comprises:

configuring a set of reference signal time-frequency resources and a resource index set indication for the terminal device,

wherein the reference signal time-frequency resources for uplink sounding and the measurement time-frequency resources for downlink measurement are determined based on the set of reference signal time-frequency resources and the resource index set indication.

12. The method of claim 9 , further comprising:

configuring sequence resource configuration information for the terminal device, and

transmitting, to the terminal device, the sequence resource configuration information, wherein the sequence resource configuration information includes at least one of:

a root sequence configuration of a used reference signal sequence,

a cyclic shift configuration, or

a comb structure configuration.

13. The method of claim 9 , wherein the receiving, from the terminal device, the measurement result comprises:

receiving a received signal strength measured directly by the terminal device on the measurement time-frequency resources.