Patent Document ID: 20160105536
Application ID: 14972989
Patent Flag: 0

Claim One:
1. A method, comprising: determining, by a transmitting device, a long training sequence set, wherein the long training sequence set comprises a plurality of long training sequences; determining a mapping relationship between each long training sequence in the long training sequence set and first sub-identity information in identity information of each receiving device in a communications system, wherein one piece of identity information is used to uniquely indicate one receiving device in the communications system, and the first sub-identity information is a part or all of the identity information; selecting a target long training sequence from the long training sequence set according to first sub-identity information of a target receiving device and the mapping relationship; performing encapsulation processing on data according to the target long training sequence to generate a data packet, so as to carry, in a long training sequence field at a physical layer of the data packet, a long training sequence symbol used to indicate the target long training sequence; and sending the data packet to the target receiving device, so that the target receiving device processes the data packet according to the target long training sequence after acquiring the target long training sequence from the data packet.