Resource block based pilot pattern design for 1/2 - stream mimo ofdma systems

A wireless communications device, comprising:

• a transmitter that transmits a plurality of pilots for a data stream using a two-dimensional resource block having an array of frequency tones along frequency domain and an array of time slots along time domain;
• and
• a pilot allocation module that allocates the plurality of pilots, wherein a specified number of pilots are determined based on a set of communications system requirements, and wherein the specified number of the plurality of pilots is first allocated near four corners of the resource block and is then maximally evenly distributed within the resource block along both the frequency domain and the time domain.

An apparatus, comprising:

• an antenna;
• and
• means for transmitting via the antenna a plurality of pilots located within a two-dimensional resource block having an array of frequency tones along frequency domain and an array of time slots along time domain, wherein a specified number of pilots are determined based on a set of communications system requirements, and wherein the specified number of the plurality of pilots is first allocated near four corners of the resource block and is then maximally evenly distributed within the resource block along both the frequency domain and the time domain.

A wireless communications device, comprising:

• a transmitter that transmits four pilots using a two-dimensional resource block having six consecutive frequency tones along frequency domain and six consecutive time slots along time domain;
• and
• a pilot allocation module that generates and allocates the four pilots into the resource block, wherein a first pilot is positioned at the smallest frequency tone and the smallest time slot, a second pilot is positioned at the smallest frequency tone and the second largest time slot, a third pilot is positioned at the second largest frequency tone and the second smallest time slot, a fourth pilot is positioned at the second largest frequency tone and the largest time slot.