Patent ID: 8432841
Filing Date: 2013-04-30
Classification: H04L,H04W

Abstract:
1. A method in a communication network entity of improving a performance of data packet transmissions between two user equipments via said communication network entity over an uplink transmission link and a downlink transmission link, whereby a pre-defined transmission delay is allowed for said data packets to travel from one of said user equipments to the other of said user equipments, the method comprising the steps of: analysing for said downlink transmission link received data packets originating from said uplink transmission link; estimating a transmission delay on said uplink transmission link based on said analysed data packets; determining a remaining transmission delay for said downlink transmission link based on the pre-defined transmission delay and the estimated transmission delay; selecting for said analysed data packets multiple actions based on said determined remaining re-transmission delay which efficiently uses available radio resources on said downlink transmission link, said actions including determining a maximum number of allowed re-transmissions on said downlink transmission link for individual data packets, a modulation and coding scheme (MCS) based on the maximum number of allowed re-transmissions to obtain an optimal robustness, and determining a time-out value for individual data packets, whereafter, transmitting said data packets on said downlink transmission link to a receiving user equipment in accordance with said actions.