Method for data transmission and reception of random access procedure

1. A method for data reception of a random access procedure for a network of a wireless communication system, the method comprising:

receiving a preamble and data of the random access procedure in one message, from a user equipment (UE) of the wireless communication system;

obtaining timing advance information according to the received preamble; and

performing channel estimation according to a DMRS allocated for demodulation of the received data with a timing advance compensation, wherein the timing advance compensation is an operation of a linear phase rotation in a frequency domain based on the timing advance information.

2. The method of claim 1 , wherein performing channel estimation according to a DMRS allocated for demodulation of the received data with the timing advance compensation comprises:

obtaining an estimated channel by the DMRS; and

estimating channels carrying the data based on the estimated channel with the timing advance compensation operation.

3. The method of claim 1 , further comprises:

configuring DMRS sequences allocated in a resource with a code-division multiplexing (CDM) manner in at least a time resource and a frequency resource.

4. The method of claim 1 , wherein receiving the preamble and data of the random access procedure, from the UE of the wireless communication system comprises:

receiving data with the same numerology and format as a physical random access channel (PRACH), wherein cyclic prefix (CP) of the data is the same as that of the preamble, and a subcarrier spacing (SCS) of data is the same as or different from the preamble.

5. The method of claim 1 , further comprising:

receiving only data with the same numerology and format as a physical uplink shared channel (PUSCH) when the UE and the network are synchronized.