COMMUNICATION SYSTEM AND METHOD USING SPACE DIVISION MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT (SD-MIMO) COMMUNICATION METHOD

摘要

Provided is a communication system using a space division multi-user multiple input multiple output (SD-MIMO) communication method. A transmission apparatus may transmit, to each of terminals included within a coverage, common control information commonly transmitted to the terminals and individual control information individually transmitted to each of the terminals. The transmission apparatus does not precode the common control information and transmits the non-precoded common control information. The transmission apparatus precodes the individual control information and transmits the precoded individual control information.

主权项

1. A method of an access point in a wireless network, comprising:
generating a first channel estimation field and a second channel estimation field to be transmitted to a terminal; generating a control field comprising a common control field and an individual control field, wherein the common control field is to be transmitted to the terminal subsequent to the first channel estimation field and prior to the second channel estimation field, and the individual control field is to be transmitted to the terminal subsequent to the second estimation field; generating a data field to be transmitted to the terminal subsequent to the individual control field; and transmitting a space time stream (STS) comprising the first and second channel estimation fields, the common control field, the individual control field, and the data field, wherein the common control field comprises information of whether precoding is applied to the second channel estimation field, to the individual control field, and to the data field of the STS.