Communication apparatus, information processing apparatus, control method, and storage medium

A communication apparatus comprising:

• at least one processer and
• at least one memory coupled to the at least one processor and having stored thereon instructions that, when executed by the at least one processor, cause the communication apparatus to act as:
• a reception unit configured to receive a multi user physical-layer protocol data unit (MU PPDU) that includes a legacy signal field (L-SIG) and a second signal field, the second signal field is to be communicated at least after the L-SIG, and
• a decoding unit configured to decode data included in the MU PPDU received by the reception unit,
• wherein the received MU PPDU is an MU PPDU that is transmitted to a plurality of communication apparatuses including the communication apparatus, the second signal field included in the received MU PPDU includes a common field common to the plurality of communication apparatuses, and the common field contains first information on whether the communication apparatus uses a semi-orthogonal multiple access (SOMA) technique for MU PPDU communication, and the second signal field includes an individual field individually for each of the plurality of other communication apparatuses, and the individual fields contains at least an identifier for identifying a data transmission destination and second information indicating whether a communication apparatus corresponding to the identifier is required to perform combined constellation processing or not, and
• wherein, in a case where an MU PPDU that includes data multiplexed using the SOMA technique is received by the reception unit, the decoding unit identifies an individual field corresponding to the communication apparatus, and performs decoding of the multiplexed data based on the second information included in the identified individual field.

A control method of a communication apparatus, the control method comprising:

• generating a multi-user physical-layer protocol data unit (MU PPDU);
• and
• transmitting the MU PPDU generated by the generating to a plurality of other communication apparatuses, wherein the generated MU PPDU includes
• a legacy signal field (L-SIG), and
• a second signal field, wherein the second signal field is to be communicated at least after the L-SIG,
• wherein the second signal field generated by the generation unit includes a common field common to the plurality of other communication apparatuses, and the common field contains first information on whether the communication apparatus uses a semi-orthogonal multiple access (SOMA) technique for MU PPDU transmission, and the second signal field includes an individual field individually for each of the plurality of other communication apparatuses, and the individual fields contains at least an identifier for identifying a data transmission destination and second information indicating whether an other communication apparatus corresponding to the identifier is required to perform combined constellation processing or not.

A control method of a communication apparatus, the control method comprising:

• receiving a multi user physical-layer protocol data unit (MU PPDU) that includes a legacy signal field (L-SIG), and a second signal field, wherein the second signal field is to be communicated at least after the L-SIG, and
• decoding data included in the MU PPDU received by the reception unit,
• wherein the received MU PPDU is an MU PPDU that is transmitted to a plurality of communication apparatuses including the communication apparatus, the second signal field included in the received MU PPDU includes a common field common to the plurality of communication apparatuses, and the common field contains first information on whether the communication apparatus uses a semi-orthogonal multiple access (SOMA) technique for MU PPDU transmission, and the second signal field includes an individual field corresponding to each data transmission destination individually, and each of the individual fields contains at least an identifier for identifying a data transmission destination and second information indicating whether a communication apparatus corresponding to the identifier is required to perform combined constellation processing or not, and
• wherein the decoding=identifies an individual field corresponding to the communication apparatus, and, when information indicating that the combined constellation processing is required to be performed is not included in the identified individual field, the decoding performs decoding of the multiplexed data while regarding, as noise, data that is included in the multiplexed data addressed to the data transmission destination corresponding to the individual field corresponding to another communication apparatus different from the communication apparatus included in the second signal field.

A non-transitory computer-readable storage medium storing a computer program for causing a computer to execute a control method of a communication apparatus, the control method comprising:

• generating a multi-user physical-layer protocol data unit (MU PPDU);
• and
• transmitting the MU PPDU generated by the generating to a plurality of other communication apparatuses, wherein the generated MU PPDU includes
• a legacy signal field (L-SIG), and
• a second signal field, wherein the second signal field is to be communicated at least after the L-SIG,
• wherein the second signal field generated by the generation unit includes a common field common to the plurality of other communication apparatuses, and the common field contains first information on whether the communication apparatus uses a semi-orthogonal multiple access (SOMA) technique for MU PPDU transmission, and the second signal field includes an individual field individually for each of the plurality of other communication apparatuses, and the individual fields contains at least an identifier for identifying a data transmission destination and second information indicating whether an other communication apparatus corresponding to the identifier is required to perform combined constellation processing or not.

A non-transitory computer-readable storage medium storing a computer program for causing a computer to execute a control method of a communication apparatus, the control method comprising:

• receiving a multi user physical-layer protocol data unit (MU PPDU) that includes a legacy signal field (L-SIG), and a second signal field, wherein the second signal field is to be communicated at least after the L-SIG, and
• decoding data included in the MU PPDU received by the reception unit,
• wherein the received MU PPDU is an MU PPDU that is transmitted to a plurality of communication apparatuses including the communication apparatus, the second signal field included in the received MU PPDU includes a common field common to the plurality of communication apparatuses, and the common field contains first information on whether the communication apparatus uses a semi-orthogonal multiple access (SOMA) technique for MU PPDU transmission, and the second signal field includes an individual field corresponding to each data transmission destination individually, and each of the individual fields contains at least an identifier for identifying a data transmission destination and second information indicating whether a communication apparatus corresponding to the identifier is required to perform combined constellation processing or not, and
• wherein the decoding unit=identifies an individual field corresponding to the communication apparatus, and, when information indicating that the combined constellation processing is required to be performed is not included in the identified individual field, the decoding performs decoding of the multiplexed data while regarding, as noise, data that is included in the multiplexed data addressed to the data transmission destination corresponding to the individual field corresponding to another communication apparatus different from the communication apparatus included in the second signal field.