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Data transmission method, apparatus, device and system for direct communication

A data transmission method and direct communication technology, applied in digital transmission systems, transmission systems, transmission link error control systems, etc., can solve problems such as lack of appropriateness, resource conflicts, etc.

Active Publication Date: 2019-05-21
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since terminals scheduled based on access network equipment may have uplink and downlink services and direct communication services at the same time, the transmission of direct hybrid automatic repeat request (Hybrid Auto Repeat Request, HARQ) feedback in the same time unit may be different from other The transmission of uplink data overlaps in the time domain, resulting in resource conflicts. There is currently no suitable solution

Method used

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  • Data transmission method, apparatus, device and system for direct communication
  • Data transmission method, apparatus, device and system for direct communication
  • Data transmission method, apparatus, device and system for direct communication

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Embodiment Construction

[0146] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0147] The network architecture and business scenarios described in the embodiments of the present disclosure are for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and do not constitute limitations on the technical solutions provided by the embodiments of the present disclosure. The evolution of technology and the emergence of new busin...

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Abstract

The present disclosure relates to a data transmission method, apparatus, device and system for direct communication of direct communication, and belongs to the field of communication. The method includes: when direct hybrid automatic repeat request HARQ feedback information and uplink information need to be sent in the target time unit, and the direct HARQ feedback information and the uplink information meet a predetermined timing relationship, a first terminal is the direct HARQ feedback information and the uplink information to an access network device on a same physical layer uplink channelin a target time unit. In the above manner, when the direct HARQ feedback information and the uplink information need to be sent in the target time unit, the direct HARQ feedback information and theuplink information satisfy at least a predetermined timing relationship to ensure that the first terminal can process the uplink multiplexing transmission in time. The success rate of information transmission and reception in the direct communication scenario is fully ensured.

Description

technical field [0001] The present disclosure relates to the communication field, and in particular to a data transmission method, device, device and system for direct communication. Background technique [0002] In the Vehicle to Everything (V2X) technology, a vehicle-mounted device can communicate directly with other devices (such as other vehicle-mounted devices, roadside infrastructure, etc.) through a side link (English: sidelink). Direct communication has the characteristics of short delay and low overhead. [0003] In related technologies, the direct connection communication method based on access network device scheduling includes: the access network device sends scheduling information to the direct connection communication sender user equipment (referred to as: first terminal), the first terminal sends the direct connection data to the user equipment at the receiving end of the direct connection communication through the sidelink according to the scheduling informa...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04W4/40H04W76/23
CPCH04W4/40H04W76/23H04L5/0057H04L5/0055H04W72/23H04L1/1854H04L1/1671H04L2001/0097H04L1/1812
Inventor 赵群
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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