Method and apparatus for improving scheduling in a wireless communication system

Abstract

A method and apparatus are disclosed from the perspective of a UE configured with DRX. In one embodiment, the method includes the UE starting a period in response to start of an UL transmission. The method also includes the UE monitoring a puncturing indication during the period. The method further includes the UE suspending the UL transmission if the puncturing indication is received by the UE.

1 . A method of a User Equipment (UE) configured with Discontinuous Reception (DRX), comprising:
 receiving a configuration to indicate whether an Uplink (UL) transmission can be stopped;   starting a period in response to starting of repetitions of the UL transmission; and   stopping remaining repetitions of the UL transmission if a puncturing indication is received by the UE and the configuration indicates that the UL transmission can be stopped, wherein the puncturing indication and the configuration are separate information.   
     
     
         2 . The method of  claim 1 , wherein the period is started at a timing offset after the repetitions of the UL transmission is started. 
     
     
         3 . The method of  claim 2 , wherein the timing offset is one Transmission Time Interval (TTI). 
     
     
         4 . The method of  claim 1 , wherein the repetitions of the UL transmission last more than one TTI. 
     
     
         5 . The method of  claim 1 , further comprising monitoring a Downlink (DL) control signaling for the puncturing indication. 
     
     
         6 . The method of  claim 5 , wherein monitoring the DL control signaling occurs during the period. 
     
     
         7 . The method of  claim 5 , wherein the DL control signaling is transmitted on Physical Downlink Control Channel (PDCCH). 
     
     
         8 . The method of  claim 5 , wherein the DL control signaling indicates an identity of a Hybrid Automatic Repeat Request (HARQ) process, wherein the remaining repetitions of the UL transmission, transmitted by or is to be transmitted by the HARQ process, is stopped. 
     
     
         9 . The method of  claim 1 , wherein the period ends in response to an end of the repetitions of the UL transmission. 
     
     
         10 . The method of  claim 1 , wherein length of the period is based on repetition times of the UL transmission. 
     
     
         11 . A User Equipment (UE) configured with Discontinuous Reception (DRX), comprising:
 a memory; and   a processor operatively coupled to the memory, wherein the processor is configured to execute a program code to:
 receive a configuration to indicate whether an Uplink (UL) transmission can be stopped; 
 start a period in response to starting of repetitions of the UL transmission; and 
 stop remaining repetitions of the UL transmission if a puncturing indication is received by the UE and the configuration indicates that the UL transmission can be stopped, wherein the puncturing indication and the configuration are separate information. 
   
     
     
         12 . The UE of  claim 11 , wherein the period is started at a timing offset after the repetitions of the UL transmission is started. 
     
     
         13 . The UE of  claim 12 , wherein the timing offset is one Transmission Time Interval (TTI). 
     
     
         14 . The UE of  claim 11 , wherein the repetitions of the UL transmission last more than one TTI. 
     
     
         15 . The UE of  claim 11 , further comprising monitoring a Downlink (DL) control signaling for the puncturing indication. 
     
     
         16 . The UE of  claim 15 , wherein monitoring the DL control signaling occurs during the period. 
     
     
         17 . The UE of  claim 15 , wherein the DL control signaling is transmitted on Physical Downlink Control Channel (PDCCH). 
     
     
         18 . The UE of  claim 15 , wherein the DL control signaling indicates an identity of a Hybrid Automatic Repeat Request (HARQ) process, wherein the remaining repetitions of the UL transmission, transmitted by or is to be transmitted by the HARQ process, is stopped. 
     
     
         19 . The UE of  claim 11 , wherein the period ends in response to an end of the repetitions of the UL transmission. 
     
     
         20 . The UE of  claim 11 , wherein length of the period is based on repetition times of the UL transmission.