CPC H04W 72/1263 (2013.01) [H04W 16/28 (2013.01); H04W 28/26 (2013.01)] | 18 Claims |
1. A trigger frame transmission method, comprising:
sending, by an access point (AP), a trigger frame for triggering a station to send an extremely high throughput trigger based physical layer protocol data unit (EHT TB PPDU), wherein the trigger frame comprises a universal signal field (U-SIG) reserved indication field indicating a value of a U-SIG reserved field in the EHT TB PPDU; and
receiving, by the AP, the EHT TB PPDU sent by the station in response to the trigger frame, wherein the value of the U-SIG reserved field in a U-SIG of the EHT TB PPDU is determined based on a value of the U-SIG reserved indication field in the trigger frame,
wherein a common information field of the trigger frame comprises four uplink spatial reuse parameter (UL SRP) field.
|