Beijing Unisoc Communications Technology Co., Ltd.

China Banknote Printing and Minting Corporation

Zhongchao Special Security Technology Co., Ltd

Xin Qu

Jun Zhu

Kai Sun

Jinyu Zhang

Xinyi Li

Xiaoli Wang

Weiwei Zhang

Baoli Zhang

Embodiments of the present disclosure provides a feedback method and apparatus, SCI sent by a second UE to a first UE is used to indicate N time-frequency resources, the second UE sends a PSSCH to the first UE on each of the N time-frequency resources, the N PSSCHs correspond to the same TB, the first UE determines L time-frequency resources according to the N time-frequency resources indicated by the first SCI, and time domains of PSFCH resources respectively corresponding to the L time-frequency resources are the same. Afterwards, the first UE feeds back to the second UE according to the PSFCH resource and received PSSCH.

Feedback method and apparatus

The present disclosure provides a method for sidelink communication. The method includes: a first terminal device acquires a first sidelink resource reserved for a second terminal device; and the first terminal device sends information of the first sidelink resource to the second terminal device to enable the second terminal device to acquire the first sidelink resource according to the information of the first sidelink resource. In the method of the embodiment of the present disclosure, the first terminal device can acquire the first sidelink resource reserved for the second terminal device according to resource occupation of a region where the first terminal device is located, and the second terminal device sends data according to the first sidelink resource reserved for it.

Method for sidelink communication, device and storage medium

An optical anti-counterfeiting element comprises a base material (). The base material () has a first surface and a second surface which are opposite to each other. The first surface is covered thereon with a micro-sampling tool (); one part of the second surface is a micro image-text formed by a micro relief structure (), and the other part thereof is a flat structure which does not form a micro image-text and/or a micro relief structure () which is different from the micro relief structure forming the micro image-text. The flat structure which does not form the micro image-text and the micro relief structure () different from the micro relief structure forming the micro image-text are homomorphically covered thereon with a first plating (), the micro relief structure () forming the micro image-text is homomorphically covered thereon with a second plating (), and the micro image-text is sampled by the micro sampling tool (). Also provided is an anti-counterfeiting product using the optical anti-counterfeiting element and a preparation method therefor.

Optical anti-counterfeiting element, product using same and preparation method therefor

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Beijing, China

Xin Qu