User equipment and data transmission method thereof

A data transmission method and user equipment technology, applied in the field of user equipment and its data transmission, can solve problems such as transmission and inability to realize V2X data, and achieve the effects of reducing transmission delay, reducing complexity, and improving speed

Inactive Publication Date: 2017-11-21
SPREADTRUM COMM (SHANGHAI) CO LTD
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Problems solved by technology

However, in the prior art, the user equipmen

Method used

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  • User equipment and data transmission method thereof
  • User equipment and data transmission method thereof
  • User equipment and data transmission method thereof

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Embodiment Construction

[0048] See figure 1 As shown, in 3GPP Release 12 (Release 12), LTE introduces direct communication between devices (Device to Device, D2D), which is also called Sidelink Communication. Wherein, the corresponding physical layer (Physical Layer), medium access control layer (Medium Access Control, MAC), radio link control (Radio Link Control, RLC) layer, physical radio resource control ( Radio Resource Control (RRC) layers can communicate directly through the PC5 interface.

[0049] In the prior art, direct communication between user equipments usually adopts two modes of resource allocation, one of which is the scheduled resource allocation mode of the base station, that is, the base station configures the direct communication between the user equipments through signaling. Resources used for communication; one is automatic resource selection (autonomous resource selection), the base station can first provide the user equipment with a resource pool for direct communication thro...

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Abstract

The invention relates to user equipment and a data transmission method thereof. The data transmission method comprises the steps of acquiring information, which is sent by a base station, of a resource pool used for transmitting V2X (Vehicle-to-Everything) data; detecting a physical resource block in the resource pool when the V2X data needs to be transmitted; and transmitting the V2X data by using the physical resource block in the resource pool when the physical resource block in the resource pool is determined to meet a first condition. The scheme can realize transmission of the V2X data and improve the user experience.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a user equipment and a data transmission method thereof. Background technique [0002] Device-to-Device (D2D) communication is a new type of technology that allows user equipment (UE) to communicate directly through multiplexing cell resources under the control of the system. It can increase the spectral efficiency of the cellular communication system, Reducing the transmit power of user equipment solves the problem of lack of spectrum resources in wireless communication systems to a certain extent. [0003] In the research project of Long Term Evolution-Advanced (LTE-A) proposed by the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP), new technologies need to be provided on the basis of LTE to meet advanced International Mobile Telecommunications-Advanced (IMT-A) requirements provide higher data rates and system capacity. The...

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Application Information

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IPC IPC(8): H04W24/08H04W24/10H04W72/04H04W72/12H04L29/08
CPCH04L67/12H04W24/08H04W24/10H04W72/1221H04W72/23
Inventor 邓云
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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