Wireless communication device and wireless communication method
A wireless communication device serving as an NG60 WiGig device includes a PPDU generator that generates an MF control PHY PPDU (physical layer protocol data unit) including a legacy preamble, a legacy header, an NG60 header (a non-legacy header), a data field, and identification information indicating that the non-legacy header is included in the PPDU and a transmitter that transmits the generated MF control PHY PPDU.
1. A wireless communication device, comprising:
a physical layer protocol data unit (PPDU) generation circuitry, which in operation, generates a PPDU including a legacy preamble, a legacy header, a non-legacy header and a data field; and
a transmission circuitry, which in operation, transmits the PPDU, wherein:
the transmission circuitry includes an encoding circuitry, and the encoding circuitry, in operation, performs Low Density Parity Check (LDPC) encoding on the PPDU, wherein a single LDPC codeword is generated by encoding the legacy header and the non-legacy header, the non-legacy header in the single LDPC codeword including a field indicating a channel bandwidth.
2. The wireless communication device according to claim 1 , wherein the non-legacy header includes identification information, and wherein the identification information indicates that the non-legacy header is included in the generated PPDU and is format identification information included in a top portion of the non-legacy header.
3. The wireless communication device according to claim 1 , wherein the non-legacy header is disposed immediately after the legacy header in the PPDU.
4. The wireless communication device according to claim 2 , wherein the format identification information and the field indicating the channel bandwidth are individually described in the non-legacy header.
5. The wireless communication device according to claim 2 , wherein the format identification information and the field indicating the channel bandwidth are jointly described in a single field in the non-legacy header.
6. The wireless communication device according to claim 5 , wherein each of the format identification information and the field indicating the channel bandwidth are described in the non-legacy header by using a sequence, and the sequence is selected from among a plurality of sequences defined in accordance with the channel bandwidth.
7. The wireless communication device according to claim 1 , wherein the transmission circuitry includes:
a modulation circuitry, which in operation, maps the encoded legacy header and the encoded non-legacy header to the same constellation.
8. The wireless communication device according to claim 2 , wherein the transmission circuitry includes a scrambling circuitry, which in operation, performs scrambling on the PPDU,
wherein the encoding, in operation, performs error correction coding on the scrambled PPDU, and
wherein the scrambling is not performed on the identification information.
9. The wireless communication device according to claim 2 , wherein the transmission circuitry includes a modulation circuitry, which in operation, modulates the PPDU, and
wherein the modulation circuitry modulates the non-legacy header by using a first phase that differs from a second phase used to modulate one of the legacy preamble and the legacy header.
10. A wireless communication method, comprising:
generating a physical layer protocol data unit (PPDU) including a legacy preamble, a legacy header, a non-legacy header and a data field;
performing Low Density Parity Check (LDPC) on the PPDU, wherein a single LDPC codeword is generated by encoding the legacy header and the non-legacy header; and
transmitting the LDPC coded PPDU, wherein:
the non-legacy header in the single LDPC codeword includes a field indicating a channel bandwidth.