Deactivation of configured grant based on number of retransmissions
A method and apparatus for deactivation of a configured grant based on a number of retransmissions for a wireless device in an idle state and/or an inactive state is provided. The wireless device releases a configured grant for a data unit based on one or more of unsuccessful retransmissions of the data unit.
1. A method performed by a wireless device adapted to operate in a wireless communication system, the method comprising:
receiving a radio resource control (RRC) release message from a network,
wherein the RRC release message includes information about an uplink configured grant which is used for transmission of data in an RRC inactive state,
wherein the uplink configured grant is associated with a specific logical channel, and
wherein the uplink configured grant is associated with a specific bandwidth part (BWP);
suspending an RRC connection and entering the RRC inactive state based on the RRC release message;
based on the data being available for transmission on the specific logical channel, transmitting the data to the network based on the uplink configured grant while in the RRC inactive state;
performing retransmissions of the data based on the uplink configured grant up to a maximum number of retransmissions; and
based on an indication from a radio link control (RLC) entity that the maximum number of retransmissions has been reached being received, releasing all configured grants including the uplink configured grant and a downlink configured grant.
2. The method of claim 1 , wherein the data includes at least one of a media access control (MAC) protocol data unit (PDU), a radio link control (RLC) PDU and/or a packet data convergence protocol (PDCP) PDU.
3. The method of claim 1 , wherein the uplink configured grant is mapped to a Layer 2 (L2) entity associated with the data.
4. The method of claim 1 , further comprising performing an initial access procedure to inform the network of information related to failure of retransmissions of the data.
5. The method of claim 4 , wherein the information related to failure of retransmissions of the data includes information about the specific logical channel, the specific BWP, and the uplink configured grant.
6. The method of claim 4 , wherein the information related to failure of retransmissions of the data includes information that the maximum number of retransmissions has been reached.
7. The method of claim 1 , further comprising reactivating the uplink configured grant upon transmitting other data based on other uplink configured grant associated with the specific BWP.
8. The method of claim 1 , wherein the wireless device is in communication with at least one of a mobile device, the network, and/or autonomous vehicles other than the wireless device.
9. A wireless device adapted to operate in a wireless communication system, the wireless device comprising:
at least one transceiver;
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:
receiving, via the at least one transceiver, a radio resource control (RRC) release message from a network,
wherein the RRC release message includes information about an uplink configured grant which is used for transmission of data in an RRC inactive state,
wherein the uplink configured grant is associated with a specific logical channel, and
wherein the uplink configured grant is associated with a specific bandwidth part (BWP);
suspending an RRC connection and entering the RRC inactive state based on the RRC release message;
based on the data being available for transmission on the specific logical channel, transmitting, via the at least one transceiver, the data to the network based on the uplink configured grant while in the RRC inactive state;
performing retransmissions of the data based on the uplink configured grant up to a maximum number of retransmissions; and
based on an indication from a radio link control (RLC) entity that the maximum number of retransmissions has been reached being received, releasing all configured grants including the uplink configured grant and a downlink configured grant.