US 11,452,042 B2 · Method for transmitting wake-up packet in communications system, and device

Abstract

This application provides a method for transmitting a wake-up packet in a communications system and a device. The communications system includes a transmit end device and a receive end device. The receive end device includes a wake-up receiver and a main transceiver. The method includes: sending, by the transmit end device, a first wake-up packet WUP to the wake-up receiver by using a first data rate; determining, by the transmit end device, a second data rate; and sending, by the transmit end device, a second WUP to the wake-up receiver by using the second data rate. The transmit end device can determine a proper data rate for sending a wake-up packet based on a specific transmission condition in a communication process, thereby improving transmission efficiency of the wake-up packet.

Claims12

Dependent claims

A transmit end device comprising:

a processor and a transceiver coupled to the processor;
the processor is configured to generate a wake-up packet (WUP), the WUP comprises a preamble field and a data field, the preamble field is configured to both perform time synchronization and indicate a data rate of the data field;
and
the transceiver is configured to send the WUP, wherein the data field is sent by the data rate indicated by the preamble field,
wherein a second data rate is determined by a receive end device based on a correspondence between a preamble mode and the data rate, wherein the correspondence between the preamble mode and the data rate is preset, and
the processor is further configured to determine a symbol length corresponding to the second data rate based on a multipath delay spread.

3 more elements

Dependencies are inferred from the claim text.

Method for transmitting wake-up packet in communications system, and device

Life of this patent

Method for transmitting wake-up packet in communications system, and device

Life of this patent

Abstract

Claims12