Wireless communication device and wireless communication method

An electronic device for communicating with a first station that is capable of decoding a data conforming to IEEE 802.11a, a second station that is capable of decoding a data conforming to IEEE 802.11n and a third station that is capable of decoding a very high throughput data (VHT-Data), the electronic device comprising:

• an obtainer configured to obtain an IEEE 802.11a signal modulated by a binary phase shift keying (BPSK) scheme, a first very high throughput signal (VHT-SIG) and a second very high throughput signal (VHT-SIG), wherein the first VHT-SIG and the IEEE 802.11a signal are transmitted in a single data packet;
• a modulator configured to
• modulate the IEEE 802.11a signal according to a first signal point location that defines a first arrangement of signal points in a signal space,
• modulate the first VHT-SIG according to a second signal point location that defines a second arrangement of signal points in the signal space,
• modulate the second VHT-SIG according to the first signal point location, and
• modulate a very high throughput data (VHT DATA);
• wherein the second signal point location is rotated by 90 degrees relative to the first signal point location and the second VHT-SIG is in a field between a field of the first VHT-SIG and a field of the VHT Data.

A communication method of receiving data conforming to IEEE 802.11a, IEEE 802.11n and a very high throughput data (VHT-Data), the method comprising:

• receiving an IEEE 802.11a signal modulated by a binary phase shift keying (BPSK) scheme, a first very high throughput signal (VHT-SIG) and a second very high throughput signal (VHT-SIG), wherein the first VHT-SIG, the second VHT-SIG and the IEEE 802.11a signal are received in a single data packet;
• demodulating the IEEE 802.11a signal according to a first signal point location that defines a first arrangement of signal points in a signal space;
• demodulating the first VHT-SIG according to a second signal point location that defines a second arrangement of signal points in the signal space;
• demodulating the second VHT-SIG according to the first signal point location;
• and
• demodulating a very high throughput data (VHT DATA),
• wherein the second signal point location is rotated by 90 degrees relative to the first signal point location and the second VHT-SIG is in a field between a field of the first VHT-SIG and a field of the VHT Data.

A non-transitory-computer-readable medium having embodied thereon a program, which when executed by a computer causes the computer to execute a communication method of receiving data conforming to IEEE 802.11a, IEEE 802.11n and a very high throughput data (VHT-Data), the method comprising:

• receiving an IEEE 802.11a signal modulated by a binary phase shift keying (BPSK) scheme, a first very high throughput signal (VHT-SIG) and a second very high throughput signal (VHT-SIG), wherein the first VHT-SIG, the second VHT-SIG and the IEEE 802.11a signal are received in a single data packet;
• demodulating the IEEE 802.11a signal according to a first signal point location that defines a first arrangement of signal points in a signal space;
• demodulating the first VHT-SIG according to a second signal point location that defines a second arrangement of signal points in the signal space;
• demodulating the second VHT-SIG according to the first signal point location;
• and
• demodulating a very high throughput data (VHT DATA),
• wherein the second signal point location is rotated by 90 degrees relative to the first signal point location and the second VHT-SIG is in a field between a field of the first VHT-SIG and a field of the VHT Data.