METHOD FOR SENDING/RECEIVING DATA IN A WIRELESS PACKET COMMUNICATION SYSTEM IN WHICH THERE IS SIMULTANEOUS COMMUNICATION WITH VARIOUS TERMINALS
A method and apparatus for transmitting a frame to at least one receiver in a wireless communication system is provided. The apparatus determines at least one data length in accordance with each receiver based on a number of symbol for the frame to be transmitted, determines a maximum data length among the at least one data length, and determines a length of the frame in time domain based on the maximum data length. The apparatus generates the frame in accordance with the length of the frame, the frame including a first signal field and at least one second signal field. The first signal field indicates the length of the frame and each second signal field indicates each data length.
1 . A method for receiving data in a wireless communication system, the method comprising:
receiving and decoding, by a receiver, a Physical layer Protocol Data Unit (PPDU) from a transmitter, the PPDU including a first signal field and a second signal field,
wherein the first signal field in the PPDU is received via a first communication path that is common to a set of receivers to which the receiver belongs,
wherein the second signal field in the PPDU is received via a second communication path that is specific to the receiver,
wherein a total length of the PPDU in a time domain is determined based on a maximum data length among a plurality of data lengths,
wherein the plurality of data lengths are determined in accordance with a plurality of receivers based on a number of symbols used for the PPDU, each of the plurality of data lengths corresponding to a corresponding one of the plurality of receivers, and
wherein the first signal field indicates the total length of the PPDU, and the second signal field indicates a data length for the receiver.
2 . The method of claim 1 , wherein the first signal field is a legacy signal (L-SIG) field.
3 . The method of claim 1 , wherein the first signal field indicates a length between the end of the first signal field and the end of the PPDU.
4 . An apparatus configured for receiving data in a wireless communication system, the apparatus comprising:
a receiving circuitry configured to receive a Physical layer Protocol Data Unit (PPDU) from a transmitter; and
a processing circuitry configured to decode the PPDU, the PPDU including a first signal field and a second signal field,
wherein the first signal field in the PPDU is received via a first communication path that is common to a set of receivers to which the apparatus belongs,
wherein the second signal field in the PPDU is received via a second communication path that is specific to the apparatus,
wherein a total length of the PPDU in a time domain is determined based on a maximum data length among a plurality of data lengths,
wherein the plurality of data lengths are determined in accordance with a plurality of receivers based on a number of symbols used for the PPDU, each of the plurality of data lengths corresponding to a corresponding one of the plurality of receivers, and
wherein the first signal field indicates the total length of the PPDU, and the second signal field indicates a data length for the apparatus.
5 . The apparatus of claim 4 , wherein the first signal field is a legacy signal (L-SIG) field.
6 . The apparatus of claim 4 , wherein the first signal field indicates a length between the end of the first signal field and the end of the PPDU.