Patent ID: 9544097
Date: 2017-01-10
CPC Classifications: H04L

Claim:
1. A method of operating a wireless communication system comprising: receiving at an access node a first multimedia broadcast multicast services (MBMS) data flow comprising a first data packet and a second data packet, the first data packet comprising a first transmit time and the second data packet comprising a second transmit time; transmitting from the access node to a wireless device the first data packet at the first transmit time; receiving from the wireless device at the access node a retransmission request at a retransmission request receipt time, wherein the retransmission request comprises a request to retransmit the first data packet; determining an anticipated retransmission time based on the second transmit time of the second data packet and the retransmission request receipt time of the retransmission request; when the anticipated retransmission time meets a predetermined retransmission time, retransmitting the first data packet from the access node to the wireless device; and when the retransmission request receipt time does not meet the predetermined retransmission time, transmitting from the access node to a controller node a MBMS data flow retransmission request to retransmit the first data packet.