Communication apparatus, control method, and storage medium
A communication apparatus 102 generates and transmits an Extremely High Throughput (EHT) Multi User (MU) Physical Layer Protocol Data Unit (PPDU) including an Extremely High Throughput-Signal-B (EHT-SIG-B) including information indicating that a plurality of Resource Units (RUs) is allocated to a communication apparatus 103 , or a Trigger Frame including User Info including information indicating that a plurality of RUs is allocated to the communication apparatus 103.
1. A communication apparatus comprising:
at least one memory that stores a set of instructions; and
at least one processing circuit, wherein the communication apparatus is caused, by the at least one processing circuit executing the instructions and/or the at least one processing circuit itself operating, to perform operations comprising:
generating an Extremely High Throughput (EHT) Multi User (MU) Physical Layer Protocol Data Unit (PPDU) including at least
a Legacy-Short Training Field (L-STF),
a Legacy-Long Training Field (L-LTF),
a Legacy-Signal (L-SIG),
an Extremely High Throughput-Short Training Field (EHT-STF), and
an Extremely High Throughput-Long Training Field (EHT-LTF); and
transmitting the generated EHT MU PPDU,
wherein a field between the L-SIG and the EHT-STF includes information indicating that a plurality of Resource Units (RUs) is allocated to one different communication apparatus,
wherein the field between the L-SIG and the EHT-STF includes at least one subfield indicating Resource Unit (RU) allocation, and
wherein a number of the at least one subfield is one in a case where a bandwidth of the EHT MU PPDU is 20 MHz, a number of the at least one subfield is one in a case where a bandwidth of the EHT MU PPDU is 40 MHz, a number of the at least one subfield is two in a case where a bandwidth of the EHT MU PPDU is 80 MHz, and a number of the at least one subfield is four in a case where a bandwidth of the EHT MU PPDU is 160 MHz.
2. The communication apparatus according to claim 1 , wherein the information indicating that the plurality of Resource Units is allocated to the one different communication apparatus is stored in a User field which is a subfield associated with a Station Identification (STA-ID) corresponding to the different communication apparatus.
3. The communication apparatus according to claim 2 , wherein the User field further includes a Modulation and Coding Scheme (MCS) subfield including information indicating a coding ratio and a modulation scheme that are used for data addressed to the different communication apparatus corresponding to the STA-ID.
4. The communication apparatus according to claim 2 , wherein the field between the L-SIG and the EHT-STF further includes a Common field, the Common field includes RU allocation indicating allocation of an RU, and the information is stored in the User field following the Common field.
5. The communication apparatus according to claim 4 , wherein a plurality of User fields is stored in the field of the EHT MU PPDU in a case where the communication apparatus communicates with two or more different communication apparatuses, and RUs indicated in the RU allocation are sequentially allocated from an RU with a lowest frequency in such a manner that an RU is allocated to a different communication apparatus corresponding to a STA-ID included in a foremost User field.
6. The communication apparatus according to claim 1 , wherein the communication apparatus is further caused to perform operations comprising:
acquiring a buffer amount of data addressed to the different communication apparatus;
acquiring communication quality with the different communication apparatus; and
determining allocation of an RU to the different communication apparatus, based on at least one of the acquired buffer amount, and the acquired communication quality,
wherein the EHT MU PPDU is generated based on a determined allocation of an RU.
7. The communication apparatus according to claim 6 , wherein the acquired communication quality is at least either a Received Signal Strength Indication (RSSI) or a Signal-to-Noise Ratio (SNR).
8. The communication apparatus according to claim 1 , wherein the EHT MU PPDU complying with an Institute of Electrical and Electronics Engineers (IEEE) 802.11be standard is generated.
9. The communication apparatus according to claim 1 , wherein frequency components of the plurality of RUs are discontinuous.
10. The communication apparatus according to claim 1 , wherein a number of the at least one subfield is eight in a case where a bandwidth of the EHT MU PPDU is 320 MHz.
11. A control method of a communication apparatus, the control method comprising:
generating an Extremely High Throughput (EHT) Multi User (MU) Physical Layer Protocol Data Unit (PPDU) including
a Legacy-Short Training Field (L-STF),
a Legacy-Long Training Field (L-LTF),
a Legacy-Signal (L-SIG),
an Extremely High Throughput-Short Training Field (EHT-STF), and
an Extremely High Throughput-Long Training Field (EHT-LTF); and
transmitting the EHT MU PPDU generated in the generating,
wherein a field between the L-SIG and the EHT-STF includes information indicating that a plurality of Resource Units (RUs) is allocated to one different communication apparatus,
wherein the field between the L-SIG and the EHT-STF includes at least one subfield indicating Resource Unit (RU) allocation, and
wherein a number of the at least one subfield is one in a case where a bandwidth of the EHT MU PPDU is 20 MHz, a number of the at least one subfield is one in a case where a bandwidth of the EHT MU PPDU is 40 MHz, a number of the at least one subfield is two in a case where a bandwidth of the EHT MU PPDU is 80 MHz, and a number of the at least one subfield is four in a case where a bandwidth of the EHT MU PPDU is 160 MHz.
12. The control method according to claim 11 , wherein a number of the at least one subfield is eight in a case where a bandwidth of the EHT MU PPDU is 320 MHz.
13. A non-transitory computer readable storage medium storing a program to cause, when the program is executed, a communication apparatus to perform:
generating an Extremely High Throughput (EHT) Multi User (MU) Physical Layer Protocol Data Unit (PPDU) including at least
a Legacy-Short Training Field (L-STF),
a Legacy-Long Training Field (L-LTF),
a Legacy-Signal (L-SIG),
an Extremely High Throughput-Short Training Field (EHT-STF), and
an Extremely High Throughput-Long Training Field (EHT-LTF); and
transmitting the generated EHT MU PPDU,
wherein a field between the L-SIG and the EHT-STF includes information indicating that a plurality of Resource Units (RUs) is allocated to one different communication apparatus,
wherein the field between the L-SIG and the EHT-STF includes at least one subfield indicating Resource Unit (RU) allocation, and
wherein a number of the at least one subfield is one in a case where a bandwidth of the EHT MU PPDU is 20 MHz, a number of the at least one subfield is one in a case where a bandwidth of the EHT MU PPDU is 40 MHz, a number of the at least one subfield is two in a case where a bandwidth of the EHT MU PPDU is 80 MHz, and a number of the at least one subfield is four in a case where a bandwidth of the EHT MU PPDU is 160 MHz.
14. The non-transitory computer readable storage medium according to claim 13 , wherein a number of the at least one subfield is eight in a case where a bandwidth of the EHT MU PPDU is 320 MHz.
15. A communication apparatus comprising:
at least one memory that stores a set of instructions; and
at least one processing circuit, wherein the communication apparatus is caused, by the at least one processing circuit executing the instructions and/or the at least one processing circuit itself operating, to perform operations comprising:
receiving an Extremely High Throughput (EHT) Multi User (MU) Physical Layer Protocol Data Unit (PPDU) including at least
a Legacy-Short Training Field (L-STF),
a Legacy-Long Training Field (L-LTF),
a Legacy-Signal (L-SIG),
an Extremely High Throughput-Short Training Field (EHT-STF), and
an Extremely High Throughput-Long Training Field (EHT-LTF); and
wherein a field between the L-SIG and the EHT-STF includes information indicating that a plurality of Resource Units (RUs) is allocated to the communication apparatus,
wherein the field between the L-SIG and the EHT-STF includes at least one subfield indicating Resource Unit (RU) allocation,
wherein a number of a subfield is one in a case where a bandwidth of the EHT MU PPDU is 20 MHz, a number of the subfield is one in a case where a bandwidth of the EHT MU PPDU is 40 MHz, a number of the subfield is two in a case where a bandwidth of the EHT MU PPDU is 80 MHz, and a number of the subfield is four in a case where a bandwidth of the EHT MU PPDU is 160 MHz.
16. The communication apparatus according to claim 15 , wherein the information indicating that the plurality of Resource Units is allocated to the communication apparatus is stored in a User field which is a subfield associated with a Station Identification (STA-ID) corresponding to the communication apparatus.
17. The communication apparatus according to claim 16 , wherein the User field further includes a Modulation and Coding Scheme (MCS) subfield including information indicating a coding ratio and a modulation scheme that are used for data addressed to the communication apparatus corresponding to the STA-ID.
18. The communication apparatus according to claim 16 , wherein the field between the L-SIG and the EHT-STF further includes a Common field, the Common field includes RU allocation indicating allocation of an RU, and the information is stored in the User field following the Common field.
19. The communication apparatus according to claim 15 , wherein the EHT MU PPDU complying with an Institute of Electrical and Electronics Engineers (IEEE) 802.11be standard is generated.
20. The communication apparatus according to claim 15 , wherein frequency components of the plurality of RUs are discontinuous.
21. The communication apparatus according to claim 15 , wherein a number of the at least one subfield is eight in a case where a bandwidth of the EHT MU PPDU is 320 MHz.
22. A control method of a communication apparatus, the control method comprising:
receiving an Extremely High Throughput (EHT) Multi User (MU) Physical Layer Protocol Data Unit (PPDU) including at least
a Legacy-Short Training Field (L-STF),
a Legacy-Long Training Field (L-LTF),
a Legacy-Signal (L-SIG),
an Extremely High Throughput-Short Training Field (EHT-STF), and
an Extremely High Throughput-Long Training Field (EHT-LTF),
wherein a field between the L-SIG and the EHT-STF includes information indicating that a plurality of Resource Units (RUs) is allocated to the communication apparatus,
wherein the field between the L-SIG and the EHT-STF includes at least one subfield indicating Resource Unit (RU) allocation, and
wherein a number of a subfield is one in a case where a bandwidth of the EHT MU PPDU is 20 MHz, a number of the subfield is one in a case where a bandwidth of the EHT MU PPDU is 40 MHz, a number of the subfield is two in a case where a bandwidth of the EHT MU PPDU is 80 MHz, and a number of the subfield is four in a case where a bandwidth of the EHT MU PPDU is 160 MHz; and
transmitting data using the plurality of RUs allocated to the communication apparatus.
23. The control method according to claim 22 , wherein a number of the at least one subfield is eight in a case where a bandwidth of the EHT MU PPDU is 320 MHz.
24. A non-transitory computer readable storage medium storing a program to cause, when the program is executed, a communication apparatus to perform:
receiving an Extremely High Throughput (EHT) Multi User (MU) Physical Layer Protocol Data Unit (PPDU) including at least
a Legacy-Short Training Field (L-STF),
a Legacy-Long Training Field (L-LTF),
a Legacy-Signal (L-SIG),
an Extremely High Throughput-Short Training Field (EHT-STF), and
an Extremely High Throughput-Long Training Field (EHT-LTF),
wherein a field between the L-SIG and the EHT-STF includes information indicating that a plurality of Resource Units (RUs) is allocated to the communication apparatus,
wherein the field between the L-SIG and the EHT-STF includes at least one subfield indicating Resource Unit (RU) allocation, and
wherein a number of a subfield is one in a case where a bandwidth of the EHT MU PPDU is 20 MHz, a number of the subfield is one in a case where a bandwidth of the EHT MU PPDU is 40 MHz, a number of the subfield is two in a case where a bandwidth of the EHT MU PPDU is 80 MHz, and a number of the subfield is four in a case where a bandwidth of the EHT MU PPDU is 160 MHZ; and
transmitting data using the plurality of RUs allocated to the communication apparatus.
25. The non-transitory computer readable storage medium according to claim 24 , wherein a number of the at least one subfield is eight in a case where a bandwidth of the EHT MU PPDU is 320 MHz.