Method and apparatus for configuration and scheduling of sidelink resources

1. A method performed by a first wireless communication device, comprising:

determining a sidelink resource unit in a sidelink resource set according to a resource aggregation level, wherein the sidelink resource unit in the sidelink resource set comprises a first number of first resource units in the time domain and a second number of second resource units in the frequency domain, and wherein the first number of the first resource units in the time domain is determined according to the resource aggregation level,

wherein the determining further comprises: determining the resource aggregation level according to at least one of the following: a resource aggregation level value, a preconfiguration of the resource aggregation level, a resource aggregation level table, a resource aggregation level field, and a resource aggregation level set, and a predefined relationship between a first numerology of the sidelink resource set and a reference numerology, and wherein the resource aggregation level table comprises a plurality of resource aggregation indices,

wherein the plurality of resource aggregation indices each corresponds to a resource aggregation level (C), wherein C is a non-negative number and is one of the following: an integer and a fraction.

2. The method of claim 1 , wherein the resource aggregation level is one of the following: a number of symbol parts in one of the first resource units and a first number of the first resource units.

3. The method of claim 1 , wherein the resource aggregation level value is indicated by a Radio Resource Control (RRC) message.

4. The method of claim 1 , wherein one of the plurality of resource aggregation indices is indicated by one of the following: a RRC message, a downlink control information (DCI) message and a sidelink control information (SCI) message.

5. The method of claim 1 , wherein the resource aggregation level field comprises one of the following: a resource aggregation index in the resource aggregation level table, an index in the resource aggregation set, a resource aggregation level value, and a resource aggregation level parameter, and wherein the aggregation level field is in one of the following: a DCI message and a SCI message.

6. The method of claim 1 , wherein the resource aggregation level set comprises a plurality of resource aggregation indices, wherein the plurality of resource aggregation indices each corresponds to a resource aggregation level (C), wherein C is a non-negative number and is one of the following: an integer and a fraction.

7. The method of claim 6 , wherein one of the plurality of resource aggregation indices is indicated by a RRC message.

8. The method of claim 1 , wherein the predefined relationship is one of the following: configured by a wireless communication node, a preconfigured parameter, and definition.

9. A method performed by a wireless communication node, comprising:

transmitting configuration information of a sidelink resource unit in a sidelink resource set to a first wireless communication device, wherein the configuration information of the sidelink resource unit comprises a resource aggregation level,

wherein the configuration information is used by the first wireless communication device to determine the sidelink resource unit for sidelink communications, wherein the sidelink resource unit in the sidelink resource set comprises a first number of first resource units in the time domain and a second number of second resource units in the frequency domain, and wherein the first number of the first resource units in the time domain is determined according to the resource aggregation level,

wherein the determining further comprises: determining the resource aggregation level according to at least one of the following: a resource aggregation level value, a preconfiguration of the resource aggregation level, a resource aggregation level table, a resource aggregation level field, and a resource aggregation level set, and a predefined relationship between a first numerology of the sidelink resource set and a reference numerology, and

wherein the resource aggregation level table comprises a plurality of resource aggregation indices, wherein the plurality of resource aggregation indices each corresponds to a resource aggregation level (C), wherein C is a non-negative number and is one of the following: an integer and a fraction.

10. The method of claim 9 , wherein the resource aggregation level is one of the following: a number of symbol parts in one of the first resource units and a first number of the first resource units.

11. The method of claim 9 , wherein the resource aggregation level value is indicated by a Radio Resource Control (RRC) message.

12. The method of claim 9 , wherein one of the plurality of resource aggregation indices is indicated by one of the following: a RRC message, a downlink control information (DCI) message and a sidelink control information (SCI) message.

13. The method of claim 9 , wherein the resource aggregation level field comprises one of the following: a resource aggregation index in the resource aggregation level table, an index in the resource aggregation set, a resource aggregation level value, and a resource aggregation level parameter, and wherein the aggregation level field is in one of the following: a DCI message and a SCI message.

14. The method of claim 9 , wherein the resource aggregation level set comprises a plurality of resource aggregation indices, wherein the plurality of resource aggregation indices each corresponds to a resource aggregation level (C), wherein C is a non-negative number and is one of the following: an integer and a fraction.

15. The method of claim 14 , wherein one of the plurality of resource aggregation indices is indicated by a RRC message.

16. The method of claim 9 , wherein the predefined relationship is one of the following: configured by the wireless communication node, a preconfigured parameter, and definition.