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Method and device for resource selection

A resource selection and resource technology, applied in the field of communication, can solve problems such as collisions

Active Publication Date: 2019-10-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a resource selection method and device, which can solve the problem of collision of frequency-time resources selected by a terminal, and improve the transmission quality of the terminal's discovery signal

Method used

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  • Method and device for resource selection

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Embodiment Construction

[0078] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0079] The embodiment of the present invention is applied in a D2D communication system, refer to image 3 As shown, in the D2D communication system, terminals perform data interaction between terminals. For example, a terminal adds a discovery signal to a discovery resource pool, and selects a corresponding frequency-time resource to transmit a discovery signal to other terminals. The base station is used to control the size of the predetermined discovery frame. I...

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Abstract

The embodiment of the present invention discloses a resource selection method and device, which are applied in the communication field, can solve the problem of collision of frequency-time resources selected by a terminal, and improve the transmission quality of a discovery signal of a terminal. The method is specifically that the terminal obtains the transmission probability of the discovery signal, and the transmission probability is the probability that the terminal starts transmitting the discovery signal from a predetermined discovery frame using a discovery resource pool; the terminal generates an indication signal corresponding to the transmission probability , the indication signal is used to indicate whether the terminal starts to transmit the discovery signal from the predetermined discovery frame using the discovery resource pool; if the indication signal is an indication transmission signal, the terminal starts from the A predetermined discovery frame starts transmitting the discovery signal using the discovery resource pool. The invention is used for the terminal to select the frequency-time resource to transmit the discovery signal.

Description

technical field [0001] The present invention relates to the communication field, in particular to a resource selection method and device. Background technique [0002] Device to Device (D2D for short) communication refers to direct communication between terminals without relaying signals through a base station. The D2D technology can reduce the burden of the macro network and increase the communication rate between UEs. [0003] In the discovery (Discovery) function of D2D communication, the terminal needs to obtain the corresponding frequency and time resources in the resource pool to send the discovery signal, refer to figure 1 As shown, assuming that the resource pool can be decomposed into 3 time periods and 3 frequency bands, a total of 9 (3×3) frequency-time resources can be generated. The terminal selects one frequency-time resource from the 9 frequency-time resources to send its own discovery signal. Among them, there are 9 terminals (numbered 1 to 9) in total, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/10
CPCH04W8/005H04W72/02H04W72/25H04W92/18H04W16/10H04W48/16H04W48/20H04W88/02H04W88/08
Inventor 张祺智李强
Owner HUAWEI TECH CO LTD
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