Importance

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Abstract

Embodiments of the present invention provide a pilot transmission method, a station, and an access station. The method includes: receiving, by a station, a pilot transmission notification, where the pilot transmission notification includes a pilot transmission rule of the station and a pilot transmission rule of another station on a group of continuous subcarriers (201) the pilot transmission rule of the station includes: the group of continuous subcarriers is divided into two subcarrier groups, pilots transmitted on subcarriers in a same subcarrier group have a same amplitude and a same phase, and pilots transmitted on subcarriers in different subcarrier groups have a same amplitude but inverse phases, and the pilot transmission rule of the another station includes: pilots transmitted on all subcarriers have a same amplitude and a same phase; and transmitting, by the station, a pilot according to the pilot transmission rule of the station (202).

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First Claim