Method for allocating priorities to a logical channel group implicitly in a D2D communication system and device therefor
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for allocating priorities to a logical channel group implicitly in a D2D communication system, the method comprising: receiving information including N numbers of priority lists in order of increasing logical channel group identity from an eNB, associating each of the N numbers of priority lists with each of the N numbers of logical channel groups in an order corresponding to a sequential order of the information, when a sidelink logical channel with a first priority is configured, allocating the sidelink logical channel with the first priority to a logical channel group associated with the first priority.
1. A method of a User Equipment (UE) operating in a wireless communication system, the method comprising:
receiving, from an evolved NodeB (eNodeB), information including 4 priority lists,
wherein the information does not include identities of 4 logical channel groups,
wherein each of the 4 priority lists includes one or more priorities,
wherein each of the 4 priority lists is sequentially associated with each of the 4 logical channel groups in an order of increasing identities of the 4 logical channel groups,
wherein a first priority list of the 4 priority lists is associated with a first logical channel group having a lowest logical channel group identity, a second priority list of the 4 priority lists is associated with a second logical channel group having a second lowest logical channel group identity, a third priority list of the 4 priority lists is associated with a third logical channel group having a second highest logical channel group identity, and a last priority list of the 4 priority lists is associated with a fourth logical channel group having a highest logical channel group identity; and
based on a sidelink logical channel with a specific priority being configured and the information, allocating the sidelink logical channel with the specific priority to a corresponding logical channel group associated with a priority list including the specific priority among the 4 priority lists.
2. The method according to claim 1 , wherein each of the one or more priorities is a ProSe Per-Packet Priority.
3. The method according to claim 1 , wherein the information is received via an RRC (radio resource control) signaling.
4. The method according to claim 1 , wherein the information is logicalChGroupInfoList.
5. A User Equipment (UE) for operating in a wireless communication system, the UE comprising:
a receiver configured to receive signals; and
a processor operably coupled with the receiver and configured to:
receive, from an evolved NodeB (eNodeB), information including 4 priority lists,
wherein the information does not include identities of 4 logical channel groups,
wherein each of the 4 priority lists includes one or more priorities,
wherein each of the 4 priority lists is sequentially associated with each of the 4 logical channel groups in an order of increasing identities of the 4 logical channel groups,
wherein a first priority list of the 4 priority lists is associated with a first logical channel group having a lowest logical channel group identity, a second priority list of the 4 priority lists is associated with a second logical channel group having a second lowest logical channel group identity, a third priority list of the 4 priority lists is associated with a third logical channel group having a second highest logical channel group identity, and a last priority list of the 4 priority lists is associated with a fourth logical channel group having a highest logical channel group identity, and
based on a sidelink logical channel with a specific priority being configured and the information, allocate the sidelink logical channel with the specific priority to a corresponding logical channel group associated with a priority list including the specific priority among the 4 priority lists.
6. The UE according to claim 5 , wherein each of the one or more priorities is a ProSe Per-Packet Priority.
7. The UE according to claim 5 , wherein the information is received via an RRC (radio resource control) signaling.
8. The UE according to claim 5 , wherein the information is logicalChGroupInfoList.