DATA TRANSMISSION METHOD AND USER EQUIPMENT

• Main Authors: XU, Kai, LI, Xiaocui
• Format: Patent
• Language: English; French; German
• Published: 15.01.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

Embodiments of this application provide a data sending method and apparatus. The data sending method in the embodiments of this application includes: determining, by user equipment, a narrowband time-frequency resource scheduled by a base station; performing, by the user equipment, clear channel assessment CCA channel detection on the narrowband time-frequency resource to obtain a channel energy value of the narrowband time-frequency resource; determining, by the user equipment, whether the channel energy value is less than a preset energy threshold; and if the channel energy value is less than the preset energy threshold, sending, by the user equipment, uplink data to the base station on the narrowband time-frequency resource. The base station schedules the narrowband time-frequency resource for the user equipment, so that the user equipment sends the uplink data on the narrowband time-frequency resource. Different user equipments may perform data transmission on different narrowband time-frequency resources. An opportunity of accessing a channel by the user equipment can be increased in a manner of performing CCA channel detection on the narrowband time-frequency resource, thereby increasing uplink time-frequency resource utilization.