Method and apparatus of allocating resource for multiple device-to-device resource pools in a wireless communication system
A method and apparatus are disclosed from the perspective of a communication device. In one embodiment, the method includes the device being configured with a plurality of resource pools by a base station for a cell. The method further includes the device receiving a grant from the base station, wherein the grant indicates a resource associated with a resource pool of the plurality of resource pools through a resource pool index in the grant. The method also includes the device using the resource to perform a transmission on a device-to-device interface.
1. A method for a first communication device, comprising:
being configured with a plurality of resource pools via a first RRC (Radio Resource Control) signaling by a base station for a cell, wherein the first RRC signaling indicates each resource pool in the plurality of resource pools is associated with one resource pool ID (Identity);
being configured with a configuration for sidelink SPS (Semi-Persistent Scheduling) via a second RRC signaling, wherein the configuration for sidelink SPS includes a resource pool ID indicated in the first RRC signaling; and
using a resource in a resource pool of the plurality of resource pools to perform a transmission on a device-to-device interface based on the configuration, wherein the resource pool is associated with the resource pool ID.
2. The method of claim 1 , wherein the transmission is a unicast transmission.
3. The method of claim 1 , wherein the transmission is for a second communication device.
4. The method of claim 1 , wherein the sidelink SPS is used without activation signaling.
5. The method of claim 1 , wherein the transmission is a multicast transmission.
6. The method of claim 1 , wherein the transmission is a broadcast transmission.
7. A first communication device, comprising:
a processor; and
a memory operatively coupled to the processor, wherein the processor is configured to execute a program code to:
be configured with a plurality of resource pools via a first RRC (Radio Resource Control) signaling by a base station for a cell, wherein the first RRC signaling indicates each resource pool in the plurality of resource pools is associated with one resource pool ID (Identity);
be configured with a configuration for sidelink SPS (Semi-Persistent Scheduling) via a second RRC signaling, wherein the configuration for sidelink SPS includes a resource pool ID indicated in the first RRC signaling; and
use a resource in a resource pool of the plural resource pools to perform a transmission on a device-to-device interface based on the configuration, wherein the resource pool is associated with the resource pool ID.
8. The first communication device of claim 7 , wherein the transmission is a unicast transmission.
9. The first communication device of claim 7 , wherein the transmission is a multicast transmission.
10. The first communication device of claim 7 , wherein the transmission is a broadcast transmission.
11. The first communication device of claim 7 , wherein the transmission is for a second communication device.
12. The first communication device of claim 7 , wherein the sidelink SPS is used without activation signaling.
13. A method for a first communication device, comprising:
configuring the first communication device with a plurality of resource pools via a RRC (Radio Resource Control) signaling by a base station for a cell, wherein the RRC signaling indicates each resource pool in the plurality of resource pools is associated with one resource pool ID (Identity);
configuring the first communication device with a configuration for sidelink SPS (Semi-Persistent Scheduling) via a RRC dedicated reconfiguration signal, wherein the configuration for sidelink SPS includes a resource pool ID indicated in the RRC signaling; and
using a resource in a resource pool of the plurality of resource pools to perform a transmission on a device-to-device interface based on the configuration, wherein the resource pool is associated with the resource pool ID.
14. The method of claim 13 , wherein the transmission is a unicast transmission.
15. The method of claim 13 , wherein the transmission is a multicast transmission.
16. The method of claim 13 , wherein the transmission is a broadcast transmission.
17. The method of claim 13 , wherein the transmission is for a second communication device.
18. The method of claim 13 , wherein the sidelink SPS is used without activation signaling.