Method for user equipment to send signal and user equipment

A technology of user equipment and signal transmission, which is applied in the field of communication, and can solve problems such as failure to receive, D2D transmission reception failure, and wrong reception.

Active Publication Date: 2020-08-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method for a user equipment to send a signal and the user equipment, which are used to solve the problem of mutual interference caused by different user equipments selecting the same resource

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  • Method for user equipment to send signal and user equipment
  • Method for user equipment to send signal and user equipment
  • Method for user equipment to send signal and user equipment

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Embodiment Construction

[0083] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0084] figure 1 It is a schematic diagram of the communication scene of the present invention. The solution of the present invention can be applied between devices to send signals to other devices or receive signals sent by other devices. The communication scene includes at least two devices. The devices in the present invention can perform D...

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Abstract

The present invention provides a method for a user equipment to send a signal and the user equipment, the method comprising: within the acquired channel detection period, detecting the first interference intensity within the system bandwidth and the second interference of each sub-band within the system bandwidth intensity, and compare the first interference intensity with the first interference threshold value, if the first interference intensity is less than the first interference threshold value, according to the second interference intensity received by each sub-band within the system bandwidth , select N first sub-bands with less interference from the system bandwidth, and send signals on the N first sub-bands, by considering the interference in the entire bandwidth and the interference of each sub-band, in the entire When the system interference is small, transmission collisions are avoided, and sub-bands with low interference are selected for signal transmission, further reducing transmission interference, thereby effectively improving the reliability of data transmission.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular, to a method for a user equipment to send a signal and the user equipment. Background technique [0002] Device to device (D2D) communication refers to the direct communication between devices, which is generally divided into D2D unicast communication and D2D broadcast / multicast communication. In the D2D unicast communication system, a device only communicates with The other device communicates directly. In a D2D broadcast / multicast communication system, a device will simultaneously send one of its own data packets to multiple nearby devices. [0003] Whether it is unicast or broadcast / multicast communication, when there is no base station or controller to participate in the allocation of D2D communication transmission resources, the user equipment will choose its own D2D communication transmission resources, and different user equipment can easily choose the ...

Claims

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Application Information

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IPC IPC(8): H04W72/06H04W72/08
CPCH04W72/0453H04W74/0816H04W74/0825H04W72/563H04W72/54H04W72/541H04W72/0446H04W88/04H04W92/18
Inventor 孙卫军
Owner HUAWEI TECH CO LTD
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