Method and device for transmitting PPDU
AssigneeSamsung Electronics Co., Ltd.
InventorJong Hoon Park
Life of this patent
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Abstract
A method for transmitting a physical layer protocol data unit (PPDU) and a device using the same are provided. The device receives a trigger frame for requesting a transmission of a high efficiency (HE) trigger-based (TB) PPDU and transmits the HE TB PPDU. A duration of the HE TB PPDU is calculated based on a duration of the trigger frame.
Claims20
A method for receiving a physical layer protocol data unit (PPDU) in a wireless local area network, the method being performed by a station, the method comprising:
- receiving a trigger-based (TB) PPDU including a first short training field (STF), a first long training field (LTF), a first signal field, a second signal field, a third signal field, a second STF and a second LTF, wherein the first STF is a legacy STF (L-STF), the first LTF is a legacy LTF (L-LTF), the first signal field is a legacy signal field (L-SIG), the second signal field is a repeated L-SIG field (RL-SIG);
- obtaining a predicted duration of the TB PPDU;
- and
- maintaining a clear channel assessment (CCA) indication as busy during the predicted duration,
- wherein, if trigger information in a trigger frame that elicited the TB PPDU is unavailable, the predicted duration is obtained based on a length field in the L-SIG field.
A device for receiving a physical layer protocol data unit (PPDU) in a wireless local area network, the device comprising:
- at least one memory;
- and
- at least one processor coupled to the at least one memory, the at least one processor configured to cause:
- receiving a trigger-based (TB) PPDU including a first short training field (STF), a first long training field (LTF), a first signal field, a second signal field, a third signal field, a second STF and a second LTF, wherein the first STF is a legacy STF (L-STF), the first LTF is a legacy LTF (L-LTF), the first signal field is a legacy signal field (L-SIG), the second signal field is a repeated L-SIG field (RL-SIG);
- obtaining a predicted duration of the TB PPDU;
- and
- maintaining a clear channel assessment (CCA) indication as busy during the predicted duration,
- wherein, if trigger information in a trigger frame that elicited the TB PPDU is unavailable, the predicted duration is obtained based on a length field in the L-SIG field.
Dependencies are inferred from the claim text.