Patent ID: 9019848
Filing Date: 2015-04-28
Classification: H04W

Abstract:
1. A method of maintaining a Quality of Service (QoS) in a wireless communication system, the method performed by a relay node (RN) and comprising: receiving, by the RN and from a base station, two or more radio network temporary identifiers (RNTIs) of each user equipment (UE); receiving, by the RN, information on a plurality of logical channels, each of which is related to one of the two or more received RNTIs from the base station; generating, by the RN, a first data unit including a voice over Internet protocol (VoIP) based data from a first logical channel associated with a first RNTI of the two or more received RNTIs; generating, by the RN, a second data unit including a transmission control protocol (TCP) based data from a second logical channel associated with a second RNTI of the two or more received RNTIs; generating, by the RN, a third data unit including data generated for the RN itself; and transmitting the generated first, second and third data units, wherein: when the third data unit is to be transmitted to the base station, the third data unit includes: when each of the first and second data units is to be transmitted to a specific UE: