Method and apparatus for processing priority in D2D communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsAnil Agiwal, Manali Sharma, Young-Bin Chang
Life of this patent
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Abstract
A method for processing a priority for transmission by a user equipment (UE) in a device-to-device (D2D) communication system are provided. The method includes receiving a priority for a packet to be transmitted from a higher layer, mapping the packet to a logical channel based on the priority and a destination to which the packet is to be transmitted, receiving a grant for the transmission of the packet from a base station, and transmitting the packet.
Claims12
A method for processing a priority for transmission by a user equipment (UE) in a device-to-device (D2D) communication system, the method comprising:
- identifying a priority assigned for a packet to be transmitted, the packet being mapped to a logical channel associated with the priority and a destination to which the packet is to be transmitted;
- selecting the destination having the logical channel of a highest priority among logical channels having data for transmission;
- selecting, from among a plurality of transmission resource pools, a transmission resource pool in which one of associated priorities of the transmission resource pool is equal to a priority of a logical channel with the highest priority among logical channels identified in a medium access control protocol data unit (MAC PDU), wherein the transmission resource pool is associated with two or more priorities;
- allocating resources for transmission from the transmission resource pool to the logical channel having the highest priority among logical channels belonging to the destination;
- and
- generating the MAC PDU and transmitting the MAC PDU based on the transmission resource pool,
- wherein, if resources for transmission remain, the logical channels belonging to the destination are served in descending order of priority until either data for the logical channels belonging to the destination is exhausted or a grant for transmission is exhausted.
A user equipment (UE) in a device-to-device (D2D) communication system, the UE comprising:
- a transceiver configured to transmit and receive data;
- and
- at least one processor configured to:
- identify a priority assigned for a packet to be transmitted, the packet being mapped to a logical channel associated with the priority and a destination to which the packet is to be transmitted,
- select the destination having the logical channel of a highest priority among logical channels having data for transmission,
- select, from among a plurality of transmission resource pools, a transmission resource pool in which one of associated priorities of the transmission resource pool is equal to a priority of a logical channel with the highest priority among logical channels identified in a medium access control protocol data unit (MAC PDU), wherein the transmission resource pool is associated with two or more priorities,
- allocate resources for transmission from the transmission resource pool to the logical channel having the highest priority among logical channels belonging to the destination,
- generate the MAC PDU, and
- control the transceiver to transmit the MAC PDU based on the transmission resource pool,
- wherein, if resources for transmission remain, the logical channels belonging to the destination are served in descending order of priority until either data for the logical channels belonging to the destination is exhausted or a grant for transmission is exhausted.
Dependencies are inferred from the claim text.