Information transmitting method, receiving method, device and storage medium

Abstract

The present invention relates to an information transmitting method, a receiving method, a device and a storage medium in a direct-connection communication scenario. The information transmitting method includes following steps: a transmitting device determines the first frequency domain bandwidth occupied by control information to be sent, and the second frequency domain bandwidth occupied by userdata corresponding to the control information; the transmitting device occupies m different frequency domain resources and repeatedly transmits the control information to a receiving device for m times in a frequency division multiplexing manner; and the transmitting device occupies the target frequency domain resource and transmits the user data to the receiving device. In the technical scheme provided, the transmitting device occupies multiple different frequency domain resources, and repeatedly transmits the control information to the receiving device in a frequency division multiplexing manner; and compared with a situation that a transmitting device only transmit control information for one time, the probability of detecting the control information of the transmitting method is correspondingly improved when the receiving device performs blind detection on the control information, thus reducing the control information blind detection complexity of the receiving device.

Description

technical field [0001] Embodiments of the present disclosure relate to the field of communication technologies, and in particular, to an information sending method, receiving method, device, and storage medium in a direct communication scenario. Background technique [0002] In a V2X (Vehicle to Everything, Internet of Vehicles) technology, a vehicle-mounted device can communicate with other devices (such as other vehicle-mounted devices, roadside infrastructure, etc.) through a direct link (sidelink). For the direct connection communication scenario in V2X technology, it is necessary to provide higher communication rate, shorter communication delay, and more reliable communication quality to meet more business needs. [0003] For the direct connection communication scenario in V2X technology, how the sending device sends control information and user data to the receiving device is a problem to be studied and solved. Before sending user data to the receiving device, the sen...

AI Technical Summary

Problems solved by technology

[0005] Since the frequency domain resources occupied by user data are dynamically determined according to the size of user data, the selection of modulation and coding methods, etc., if the control information and user data use the same frequency domain resources, the receiving device needs to use all frequency domain resources that may be occupied by the control information. Blind detection is performed on the domain position, which will lead to a very high complexity for the blind detection of the control information by the receiving device

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