Method and apparatus supporting device-to-device (D2D) communication in a wireless communication system
First Claim
1. A method of a User Equipment (UE) served by an evolved Node B (eNB) for supporting device-to-device (D2D) communication, the method comprising:
- the UE receives a message that includes information pertaining to a first resource pool provided by the eNB, wherein resources of the first resource pool are common resources shared by more than one UE using the first resource pool and are used for D2D transmission;
the UE uses the first resource pool for D2D transmission if the UE knows the first resource pool based on the message, and the UE is not configured with a second resource pool provided by the eNB yet, wherein the second resource pool allocated by the eNB (and not allocated by any UE including the UE) is different from the first resource pool and is also used for D2D transmission;
the UE uses the second resource pool and does not use the first resource pool for D2D transmission if the first resource pool is still available for D2D transmission and the UE is configured with the second resource pool by the eNB; and
the UE selects resource(s) from the second resource pool and uses the selected resource(s) for D2D transmission when the UE uses the second resource pool.
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Abstract
A method of a UE being served by a eNB for supporting device to device (D2D) communication is disclosed. The method includes the UE receiving a message that includes information pertaining to a first resource pool provided by the eNB, wherein resources of the first resource pool are common resources shared by more than one UE using the first resource pool. The method further includes the UE being configured with a second resource pool provided by the eNB, wherein the second resource pool is different from the first resource pool. Furthermore, the method includes the UE selecting resource(s) from the second resource pool and uses the selected resource(s) for D2D transmission.
15 Citations
20 Claims
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1. A method of a User Equipment (UE) served by an evolved Node B (eNB) for supporting device-to-device (D2D) communication, the method comprising:
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the UE receives a message that includes information pertaining to a first resource pool provided by the eNB, wherein resources of the first resource pool are common resources shared by more than one UE using the first resource pool and are used for D2D transmission; the UE uses the first resource pool for D2D transmission if the UE knows the first resource pool based on the message, and the UE is not configured with a second resource pool provided by the eNB yet, wherein the second resource pool allocated by the eNB (and not allocated by any UE including the UE) is different from the first resource pool and is also used for D2D transmission; the UE uses the second resource pool and does not use the first resource pool for D2D transmission if the first resource pool is still available for D2D transmission and the UE is configured with the second resource pool by the eNB; and the UE selects resource(s) from the second resource pool and uses the selected resource(s) for D2D transmission when the UE uses the second resource pool. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A UE (User Equipment) for supporting device-to-device (D2D) communication, the UE comprising:
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a control circuit; a processor installed in the control circuit; and a memory installed in the control circuit and operatively coupled to the processor; wherein the processor is configured to execute a program code stored in the memory to; enable the UE to be served by a eNB (evolved Node B); enable the UE to receive a message that includes information pertaining to a first resource pool provided by the eNB, wherein resources of the first resource pool are common resources shared by more than one UE using the first resource pool and are used for D2D transmission; enable the UE to use the first resource pool for D2D transmission if the UE knows the first resource pool based on the message and the UE is not configured with a second resource pool provided by the eNB yet, wherein the second resource pool allocated by the eNB (and not allocated by any UE including the UE) is different from the first resource pool and is also used for D2D transmission; enable the UE to use the second resource pool and to not use the first resource pool for D2D transmission if the first resource pool is still available for D2D transmission and the UE is configured with the second resource pool by the eNB; and enable the UE to select resource(s) from the second resource pool and to use the selected resource(s) for D2D transmission when the UE uses the second resource pool. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification