Resource configuration method and apparatus

1. A user equipment (UE), comprising:

a receiver, configured to receive a broadcast message sent out by a control node, while the UE is in an idle state, and to receive, from the control node, a dedicated message that is specific to the UE, and that is sent by the control node after the UE becomes connected to the control node and enters a connected state, wherein the broadcast message comprises a first resource pool, wherein the dedicated message comprises a second sub-resource pool, wherein the first resource pool or the second sub-resource pool comprises a sending resource pool or a receiving resource pool, and wherein the control node is a base station serving either the UE, or a group head UE of a group, and the UE belongs to the group;

a processor; and

a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to contend to obtain a resource in the sending resource pool or the receiving resource pool, to use the resource that is obtained for communicating device to device (D2D) with a second UE, and to determine when the UE fails to obtain within a period of time, by means of contention, the resource; and

a transmitter, configured to send a failure indication message or a resource pool reallocation request to the control node in response to a determination that the UE failed, within the period of time, to obtain the resource in the sending resource pool or the receiving resource pool;

wherein the instructions to use the resource that is obtained comprise instructions to:

send D2D to the second UE using the resource that is obtained, when the resource is in the sending resource pool; and

receive D2D from the second UE using the resource that is obtained, when the resource is in the receiving resource pool.

2. The UE according to claim 1 , wherein the sending resource pool comprises a cell or a proximity service group, and wherein the receiving resource pool comprises the cell or the proximity service group.

3. The UE according to the claim 1 , wherein the receiver is further configured to receive an additional dedicated message sent by the control node, wherein the additional dedicated message comprises a reallocation of resources of a third resource pool that is different from an allocation of resources of the first resource pool or the second sub-resource pool, wherein the control node transmits the additional dedicated message to the UE in response to receiving the failure indication message or the resource pool reallocation request from the UE.

4. The UE according to claim 1 , wherein the dedicated message comprises radio resource control (RRC) signaling, physical downlink control channel (PDCCH) signaling, or enhanced physical downlink control channel (ePDCCH) signaling.

5. The UE of claim 1 , wherein the sending resource pool or the receiving resource pool is received by the control node in an exchange of resources with another control node.

6. A control node, comprising:

a transmitter, configured to:

send out a broadcast message that is received by a user equipment (UE) that is in an idle state; and

send a dedicated message to the UE, after the UE becomes connected to the control node and enters a connected state; and

a receiver;

wherein the broadcast message comprises an allocation of resources of a first resource pool, wherein the dedicated message is specific to the UE, and the dedicated message comprises another allocation of resources of a second sub-resource pool, wherein the first resource pool or the second sub-resource pool comprises a sending resource pool or a receiving resource pool;

wherein the UE can contend to obtain a resource in the sending resource pool or the receiving resource pool, determine when there is a failure to obtain within a period of time, by means of contention, the resource, and use the resource that is obtained to communicate device to device (D2D) with a second UE by sending D2D to the second UE when the resource that is obtained is in the sending resource pool and by receiving D2D from the second UE when the resource that is obtained is in the receiving resource pool;

wherein the control node is a base station serving either the UE, or a group head UE of a group and the UE belongs to the group;

wherein the receiver is configured to receive a message from the UE, wherein the message comprises a failure indication message or a resource pool reallocation request, wherein the message comprises an indication that the UE could not obtain by means of contention the resource in the sending resource pool or the receiving resource pool;

wherein the control node allocates a third sub-resource pool that is different from the allocation of resources of the first resource pool or the second sub-resource pool, in response to the receiver receiving the message from the UE; and

wherein the transmitter sends an additional dedicated message to the UE, wherein the additional dedicated message comprises the allocation of resources of the third sub-resource pool.

7. The control node according to claim 6 , wherein the sending resource pool comprises a cell or a proximity service group, and wherein the receiving resource pool comprises the cell or the proximity service group.

8. The control node according to claim 7 , wherein the control node further comprises:

a receiver, configured to receive information from another control node of a different cell or different proximity service group, wherein the information comprises a different allocation of resources by the other control node;

a processor; and

a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to determine the allocation of resources of the first resource pool or the second sub-resource pool in accordance with the information received from the other control node about the different allocation of resources by the other control node.

9. The control node according to claim 6 , wherein the transmitter is further configured to send an additional dedicated message to the UE, wherein the additional dedicated message comprises an allocation of resources of a third sub-resource pool that is different from the allocation of resources of the first resource pool or the second sub-resource pool, in response to the receiver receiving the message from the UE.

10. The control node according to claim 6 , wherein the dedicated message comprises radio resource control (RRC) signaling, physical downlink control channel (PDCCH) signaling, or enhanced physical downlink control channel (ePDCCH) signaling.

11. The control node of claim 6 , wherein the sending resource pool or the receiving resource pool is received by the control node in an exchange of resources with another control node.

12. A method, comprising:

receiving, by a user equipment (UE) a broadcast message sent out by a control node, while the UE is in an idle state, wherein the broadcast message comprises a first resource pool, wherein the control node is a base station serving either the UE, or a group head UE of a group and the UE belongs to the group;

connecting, by the UE, to the control node;

receiving, by the UE from the control node, a dedicated message specific to the UE, after the UE becomes connected to the control node and enters a connected state, wherein the dedicated message comprises a second sub-resource pool, wherein the first resource pool or the second sub-resource pool comprises a sending resource pool or a receiving resource pool;

contending, by the UE, to obtain a resource from the sending resource pool or the receiving resource pool;

determining, by the UE, when there is a failure to obtain within a period of time, the resource;

sending, by the UE, a failure indication or a resource pool allocation request to the control node in response to a determination that the UE failed, within the period of time, to obtain the resource; and

using, by the UE, the resource that is obtained for communicating, by the UE, device to device (D2D) with a second UE by sending D2D to the second UE when the resource that is obtained is in the sending resource pool, and by receiving D2D from the second UE when the resource that is obtained is in the receiving resource pool.

13. The method according to claim 12 , wherein the sending resource pool comprises a cell or a proximity service group, and wherein the receiving resource pool comprises the receiving resource pool comprising the cell or the proximity service group.

14. The method according to claim 12 , wherein the dedicated message comprises radio resource control (RRC) signaling, physical downlink control channel (PDCCH) signaling, or enhanced physical downlink control channel (ePDCCH) signaling.

15. The method of claim 12 , wherein the sending resource pool or the receiving resource pool is received by the control node in an exchange of resources with another control node, and wherein the control node belongs to a different ProSe group than the other control node.

16. A method, comprising:

sending out, by a control node, a broadcast message that is received by a user equipment (UE) that is in an idle state; and sending to the UE, by the control node, a dedicated message that is specific to the UE, after the UE becomes connected to the control node and enters a connected state;

wherein the broadcast message comprises an allocation of resources of a first resource pool, and the dedicated message comprises another allocation of resources of a second sub-resource pool, wherein the first resource pool or the second sub-resource pool comprises a sending resource pool or a receiving resource pool;

wherein the UE can contend to obtain a resource in the sending resource pool or the resource pool, can determine when there is a failure to obtain within the resource within a period of time, and can use the resource that is obtained to communicate device to device (D2D) with a second UE, by sending D2D to the second UE when the resource that is obtained is in the sending resource pool, and receiving D2D from the second UE when the resource that is obtained is in the receiving resource pool;

wherein the control node is a base station serving either the UE, or a group head UE of a group and the UE belongs to the group; and

wherein the method further comprises:

receiving from the UE a message comprising a failure indication message or a resource pool reallocation request, wherein the message comprises an indication that the UE could not obtain the resource in the sending resource pool or the receiving resource pool; and

allocating a third sub-resource pool that is different from the allocation of resources of the first resource pool or the second sub-resource pool, in response to the receiver receiving the message from the UE; and

sending an additional dedicated message to the UE, wherein the additional dedicated message comprises the allocation of resources of the third sub-resource pool.

17. The method according to claim 16 , wherein the sending resource pool comprises a sending resource pool comprising a cell or a proximity service group, and wherein the receiving resource pool comprises a receiving resource pool comprising the cell or the proximity service group.

18. The method according to claim 16 , wherein the dedicated message comprises radio resource control (RRC) signaling, physical downlink control channel (PDCCH) signaling, or enhanced physical downlink control channel (ePDCCH) signaling.

19. The method of claim 16 , further comprising receiving the sending resource pool or the receiving resource pool in an exchange of resources with another control node.

20. The method of claim 19 , wherein the control node belongs to a different ProSe group than the other control node.