If the HT Protection field is equal to nonmember protection mode or non-HT mixed mode, the AP may set the RIFS Mode field to 0 according to implementation-specific criteria (i.e., such as to protect overlapping non-HT BSSs in the primary or secondary channels).
HT Protectionフィールドがnonmember protectionモードかnon-HT mixedモードのとき、APはRIFS mode フィールドを0にする。
If the HT Protection field is not equal to nonmember protection mode and it is not equal to non-HT mixed mode, the RIFS Mode field shall be set to 1.
HT Protectionフィールドがnonmember protectionモードでなく、non-HT mixedモードでもないときはRIFS Modeフィールドは1にする。
If the RIFS Mode field of an AP’s HT Operation element is equal to 1:
APのRIFSモードフィールドが1の場合、
a) A STA that is associated with the AP may protect RIFS sequences when the HT Protection field of the HT Operation element transmitted by the AP is equal to nonmember protection mode.
b) A STA that is associated with the AP shall protect RIFS sequences when the HT Protection field of the HT Operation element transmitted by the AP is equal to non-HT mixed mode.
HT Protectionフィールドがnonmember protectionモードかnon-HT mixedモードのとき、APはRIFS mode フィールドを0にする。
If the HT Protection field is not equal to nonmember protection mode and it is not equal to non-HT mixed mode, the RIFS Mode field shall be set to 1.
HT Protectionフィールドがnonmember protectionモードでなく、non-HT mixedモードでもないときはRIFS Modeフィールドは1にする。
If the RIFS Mode field of an AP’s HT Operation element is equal to 1:
APのRIFSモードフィールドが1の場合、
a) A STA that is associated with the AP may protect RIFS sequences when the HT Protection field of the HT Operation element transmitted by the AP is equal to nonmember protection mode.
b) A STA that is associated with the AP shall protect RIFS sequences when the HT Protection field of the HT Operation element transmitted by the AP is equal to non-HT mixed mode.
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