Data transmission method and device
AssigneeHuawei Device Co., Ltd.
InventorsZhenguo DU, Guiming Shu, Su Lu
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Abstract
The present invention discloses a data transmission method and device. The method includes: receiving, by a device in a first BSS, a data frame sent by a device in a second BSS, where the data frame sent by the device in the second BSS includes a Preamble sequence and a MAC frame; transmit power of the Preamble sequence is first power; transmit power of the MAC frame is second power; and the first power is higher than the second power; if the data frame received by the device in the first BSS includes the Preamble sequence but does not include the MAC frame, setting a NAV value according to a SIG field in the Preamble sequence; and transmitting data according to the NAV value.
Claims20
A data transmission method, wherein the method comprises:
- receiving, by a device in a first basic service set, a data frame sent by a device in a second basic service set, wherein the data frame sent by the device in the second basic service set comprises a preamble sequence and a Medium Access Control frame;
- transmit power of the preamble sequence is first power;
- transmit power of the Medium Access Control frame is second power;
- and the first power is higher than the second power;
- if the data frame received by the device in the first basic service set comprises the preamble sequence but does not comprise the Medium Access Control frame, setting a network allocation vector value according to a signal field in the preamble sequence;
- and
- transmitting data according to the network allocation vector value.
A data transmission device, wherein the device comprises:
- a receiving module, configured to receive a data frame sent by a device in a second basic service set, wherein the data frame sent by the device in the second basic service set comprises a preamble sequence and a Medium Access Control frame;
- transmit power of the preamble sequence is first power;
- transmit power of the Medium Access Control frame is second power;
- and the first power is higher than the second power;
- a network allocation vector setting module, configured to:
- when the data frame received by the receiving module comprises the preamble sequence but does not comprise the Medium Access Control frame, set a network allocation vector value according to a signal field in the preamble sequence;
- and
- a transmission module, configured to transmit data according to the network allocation vector value that is set by the network allocation vector setting module.
Dependencies are inferred from the claim text.