Method for transmitting data in a wireless communication system and system thereof

Abstract

A method for transmitting data in an LTE system including a User Equipment (UE) and an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) includes: transmitting a MAC protocol data unit (PDU) from the E-UTRAN to the UE; receiving the MAC PDU and beginning counting a predetermined time by the UE; sending a scheduling request (SR) from the UE to the E-UTRAN after the predetermined time; receiving the scheduling request (SR) and allocating an uplink resource in response to the scheduling request (SR) by the E-UTRAN; and transmitting data from the UE to the E-UTRAN via the uplink resource.

1 . A method for transmitting data in an LTE system including a User Equipment (UE) and an Evolved Universal Terrestrial Radio Access Network (E-UTRAN), the method comprising:
 transmitting a MAC protocol data unit (PDU) from the E-UTRAN to the UE;   receiving the MAC PDU and beginning counting a predetermined time by the UE;   sending a scheduling request (SR) from the UE to the E-UTRAN after the predetermined time;   receiving the scheduling request (SR) and allocating an uplink resource in response to the scheduling request (SR) by the E-UTRAN; and   transmitting data from the UE to the E-UTRAN via the uplink resource.   
     
     
         2 . The method of  claim 1 , wherein the UE comprises a first Radio Link Control (RLC) layer and a first Medium Access Control and Physical (MAC/PHY) layer, and the E-UTRAN comprises a second Radio Link Control (RLC) layer and a second Medium Access Control and Physical (MAC/PHY) layer; and step of transmitting a MAC protocol data unit (PDU) from the RAN to the UE further comprises:
 transmitting the MAC protocol data unit (PDU) from the second MAC/PHY layer of the E-UTRAN to the first MAC/PHY layer of the UE.   
     
     
         3 . The method of  claim 2 , wherein the MAC PDU includes a negative acknowledgement of at least one RLC Data PDU sent by the first RLC layer of the UE. 
     
     
         4 . The method of  claim 2 , further comprising:
 converting a RLC data PDU of the second RLC layer into the MAC PDU by the second MAC/PHY.   
     
     
         5 . The method of  claim 1 , wherein the E-UTRAN includes a Node B for implementing the steps of transmitting the MAC protocol data unit (PDU) and the step of receiving the scheduling request (SR) and allocating the uplink resource.