Patent Document ID: 20160094325
Application ID: 14955254
Patent Flag: 0

Claim One:
1. A data transmission method, wherein the method comprises: determining, by a transmitting device, a long training sequence set, wherein the long training sequence set comprises at least two long training sequences; determining at least one receiving device set, wherein the at least one receiving device set comprises at least one receiving device in a communications system; determining a first mapping relationship, wherein the first mapping relationship is a mapping relationship between at least one set-use long training sequence in the long training sequence set and the at least one receiving device set, and the at least one set-use long training sequence corresponds to the at least one receiving device set on a one-to-one basis; when first data needs to be transmitted to a target receiving device set, determining a target set-use long training sequence according to the target receiving device set and the first mapping relationship; performing encapsulation processing on the first data according to the target set-use long training sequence to generate a first data packet, so that a long training sequence field in a physical layer of the first data packet carries a first long training sequence symbol that indicates the target set-use long training sequence; and transmitting the first data packet, to enable, after a receiving device receives the first data packet, and acquires the target set-use long training sequence from the first data packet, the receiving device to process the data packet according to the target set-use long training sequence.