Terminal control method, device and system

By sending radio frequency signals to passive BD devices through the base station to wake up the terminal, the communication delay problem of DRX mode under unlicensed spectrum is solved, and low-power rapid response and efficient communication are achieved.

CN115633406BActive Publication Date: 2025-09-26CHINA TELECOM CORP LTD
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Patent Information

Application Number
CN202211273091.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-18
Publication Date
2025-09-26
Estimated Expiration
2042-10-18

AI Technical Summary

Technical Problem

When the terminal turns on DRX mode, the communication delay caused by resource contention in the unlicensed spectrum is too long, resulting in a decrease in communication performance.

Method used

The base station sends a preset frequency RF signal to the passive BD device to wake up the terminal and control it to turn on DRX mode, avoiding the terminal from continuously detecting WUS signals and sending control signals. The energy-sensitive characteristics of the passive BD device are utilized to reduce waiting delay.

Benefits of technology

The average delay of the DRX mode in the unlicensed spectrum is reduced, the communication performance is improved, the bandwidth occupied by the control signal is saved, and the power consumption is reduced.

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Abstract

The present disclosure relates to a terminal control method, device, and system, and relates to the field of communications technology. The control method includes: seizing unlicensed spectrum resources used for transmitting downlink data; upon successful seizure of the unlicensed spectrum resources, transmitting a radio frequency signal of a preset frequency to a passive BD device, so that the passive BD device controls the transmission and reception of information by a terminal in DRX mode. The technical solution of the present disclosure can reduce communication latency, thereby improving communication performance.
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