Frame transmission method and apparatus in wireless local area network
AssigneeHuawei Technologies Co., Ltd.
InventorsXun Yang, Meilu Lin, Ming Gan, Le Liu
Life of this patent
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Abstract
The frame transmission method in the wireless local area network includes: generating, by an access point, a physical layer protocol data unit PPDU of a target type, where the PPDU includes a target media access control MAC frame structure that is generated in a target encapsulation format and that carries a trigger frame, and whether the target MAC frame structure includes a packet extension field is determined based on the target type and the target encapsulation format; and sending, by the access point, the PPDU.
Claims10
A frame transmission method in a wireless local area network, comprising:
- generating, by an access point, a physical layer protocol data unit (PPDU) of a target type, wherein the PPDU comprises a target media access control (MAC) frame structure that is generated in a target encapsulation format and that carries a trigger frame, and whether the target MAC frame structure comprises a packet extension field is determined based on the target type and the target encapsulation format, and wherein the packet extension field comprises at least one of a padding field or a second frame check sequence (FCS2) field, and
- when the target type is an high efficiency (HE) PPDU, and the target encapsulation format is a delimiter media access control layer protocol data unit (MPDU):
- whether the target MAC frame structure comprises the packet extension field is determined based on the target type being an HE PPDU, the target encapsulation format being an MPDU, and whether an effective length of the target MAC frame structure satisfies a preset condition, wherein the preset condition is that a termination location of the effective length of the target MAC frame structure is before a termination location of a length of the PPDU;
- and
- when the effective length of the target MAC frame structure satisfies the preset condition, the target MAC frame structure comprises the packet extension field;
- or
- when the effective length of the target MAC frame structure does not satisfy the preset condition, the target MAC frame structure does not comprise the packet extension field;
- and
- sending, by the access point, the PPDU.
A frame transmission apparatus in a wireless local area network, comprising:
- a baseband circuit, configured to generate a physical layer protocol data unit (PPDU) of a target type, wherein the PPDU comprises a target media access control (MAC) frame structure that is generated in a target encapsulation format and that carries a trigger frame, and whether the target MAC frame structure comprises a packet extension field is determined based on the target type and the target encapsulation format, and wherein the packet extension field comprises at least one of a padding field or a second frame check sequence (FCS2) field, and
- when the target type is an high efficiency (HE) PPDU, and the target encapsulation format is an MPDU:
- whether the target MAC frame structure comprises the packet extension field is determined based on the target type being an HE PPDU, the target encapsulation format being an MPDU, and whether an effective length of the target MAC frame structure satisfies a preset condition, wherein the preset condition is that a termination location of the effective length of the target MAC frame structure is before a termination location of a length of the PPDU;
- and
- when the effective length of the target MAC frame structure satisfies the preset condition, the target MAC frame structure comprises the packet extension field;
- or
- when the effective length of the target MAC frame structure does not satisfy the preset condition, the target MAC frame structure does not comprise the packet extension field;
- and
- a radio frequency circuit communicatively coupled with the baseband circuit, configured to send the PPDU.
Dependencies are inferred from the claim text.