Patent ID: 9154274
Filing Date: 2015-10-06
Classification: H04B,H04L,H04W

Abstract:
1. A method of transmitting data in an orthogonal frequency division multiplexing (OFDM) communication system from a transmitter device to one or more receiver devices, comprising: selecting a first number of one or more first OFDM symbols having a first data carrying capacity for carrying pilot data and a second number of one or more second OFDM symbols having a second data carrying capacity for carrying control data that is different from the first data carrying capacity, wherein the first OFDM symbols and second OFDM symbols have different symbol sizes; selecting, based on a payload size of data intended for at least a first user and a second user, at least a third number of third OFDM symbols having a third data carrying capacity for user data intended for the first user and a fourth number of fourth OFDM symbols having a fourth data carrying capacity for user data intended for the second user, wherein the third OFDM symbols and fourth OFDM symbols have different symbol sizes; and transmitting the data packet using the selected number of first OFDM symbols, the selected number of second OFDM symbols, the selected number of third OFDM symbols, and the selected number of fourth OFDM symbols, wherein the control data transmitted on the second OFDM symbols comprises information about the third data carrying capacity and symbol size of the third OFDM symbols and the fourth data carrying capacity and symbol size of the fourth OFDM symbols.