IP Library › Granted Patent US 12,341,633
Granted Patent B2
US 12,341,633 · App. 18/664,784 · Granted Jun 24, 2025

Communication device, communication method thereof, information processing device, control method thereof, and computer-readable storage medium

Inventor: Yuki Yoshikawa (Kanagawa, JP)
Assignee: CANON KABUSHIKI KAISHA
H04L25/03006H04L5/0048H04L27/2603H04L2025/03815
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Quick Facts
Patent No.
US 12,341,633
App. No.
18/664,784
Granted
Jun 24, 2025
Kind
B2
Abstract

A communication device communicates a radio frame including a preamble and a data field of a physical layer (PHY). The preamble includes an L-STF (Legacy Short Training Field), an L-LTF (Legacy Long Training Field), an L-SIG (Legacy Signal Field), an EHT-SIG-A (Extremely High Throughput Signal A Field), an EHT-STF, and an EHT-LTF, and the EHT-SIG-A includes a field indicating a standard that the radio frame complies with.

Claims (49)

1. A communication device, comprising:

at least one memory that stores a set of instructions; and

at least one processing circuit, and

wherein the communication device 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 a physical layer (PHY) frame including a preamble; and

transmitting the PHY frame,

wherein the preamble includes a first Signal field, a Short Training field (STF) and a Long Training field (LTF),

wherein the first Signal Field is allocated before the STF and includes a field indicating a version of the PHY frame, wherein the field indicating the version of the PHY frame consists of 3 bits, and an Extremely High Throughput (EHT) is indicated in a case where 0 is set using the 3 bits in the field.

2. The communication device according to claim 1 , wherein the STF is different from a Legacy Short Training field (L-STF).

3. The communication device according to claim 1 , wherein the STF is an Extremely High Throughput Short Training field (EHT-STF).

4. The communication device according to claim 1 , further comprising at least one antenna, and

wherein the PHY frame is transmitted via the at least one antenna.

5. The communication device according to claim 1 , wherein three bits in a head of the first Signal field are allocated as the field indicating the version of the PHY frame.

6. The communication device according to claim 1 , wherein the first Signal field further includes a bandwidth field indicating a bandwidth and a Modulation and Coding Scheme (MCS) field indicating a MCS.

7. The communication device according to claim 6 , wherein the bandwidth field and the MCS field are allocated after the field indicating the version of the PHY frame.

8. The communication device according to claim 1 , wherein the communication device is a station that communicates with an access point.

9. The communication device according to claim 1 , wherein the communication device is an access point.

10. The communication device according to claim 1 , wherein a successor version of the EHT is indicated in a case where 1 is set in the field indicating the version of the PHY frame.

11. The communication device according to claim 1 , wherein in a case where the communication device supports the EHT but not a successor version of the EHT, the communication device transmits the PHY frame in which 0 is set in the field indicating the version of the PHY frame.

12. A communication device, comprising:

at least one memory that stores a set of instructions; and

at least one processing circuit, and

wherein the communication device 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 a physical layer (PHY) frame including a preamble; and

decoding the PHY frame,

wherein the preamble includes a first Signal field, a Short Training field (STF) and a Long Training field (LTF),

wherein the first Signal Field is allocated before the STF and includes a field indicating a version of the PHY frame, wherein the field indicating the version of the PHY frame consists of 3 bits, and an Extremely High Throughput (EHT) is indicated in a case where 0 is set using the 3 bits in the field.

13. The communication device according to claim 12 , wherein the STF is different from a Legacy Short Training field (L-STF).

14. The communication device according to claim 12 , wherein the STF is an Extremely High Throughput Short Training field (EHT-STF).

15. A communication method executed by a communication device, comprising:

generating a physical layer (PHY) frame including a preamble; and

transmitting the PHY frame,

wherein the preamble includes a first Signal field, a Short Training field (STF) and a Long Training field (LTF),

wherein the first Signal Field is allocated before the STF and includes a field indicating a version of the PHY frame, wherein the field indicating the version of the PHY frame consists of 3 bits, and an Extremely High Throughput (EHT) is indicated in a case where 0 is set using the 3 bits in the field.

16. A communication method executed by a communication device, comprising:

receiving a physical layer (PHY) frame including a preamble; and

decoding the PHY frame,

wherein the preamble includes a first Signal field, a Short Training field (STF) and Long Training field (LTF),

wherein the first Signal Field is allocated before the STF and includes a field indicating a version of the PHY frame, wherein the field indicating the version of the PHY frame consists of 3 bits, and an Extremely High Throughput (EHT) is indicated in a case where 0 is set using the 3 bits in the field.

17. A non-transitory computer-readable storage medium that stores a set of instructions for causing a computer to perform operations comprising:

generating a physical layer (PHY) frame including a preamble; and

transmitting the PHY frame,

wherein the preamble includes a first Signal field, a Short Training field (STF) and a Long Training field (LTF),

wherein the first Signal Field is allocated before the STF and includes a field indicating a version of the PHY frame, wherein the field indicating the version of the PHY frame consists of 3 bits, and an Extremely High Throughput (EHT) is indicated in a case where 0 is set using the 3 bits in the field.

18. A non-transitory computer-readable storage medium that stores a set of instructions for causing a computer to perform operations comprising:

receiving a physical layer (PHY) frame including a preamble; and

decoding the PHY frame,

wherein the preamble includes a first Signal field, a Short Training field (STF) and a Long Training field (LTF),

wherein the first Signal Field is allocated before the STF and includes a field indicating a version of the PHY frame, wherein the field indicating the version of the PHY frame consists of 3 bits, and an Extremely High Throughput (EHT) is indicated in a case where 0 is set using the 3 bits in the field.

Priority Claims (1)
JP 2019-036405 · Feb 28, 2019 · national
Continuity (5)
Continuation 18203746 · May 31, 2023
Continuation 17863635 · Jul 13, 2022
Continuation 17412660 · Aug 26, 2021
Continuation PCTJP2020004216 · Feb 5, 2020
Related Publication 20240305505A1 · Sep 12, 2024
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