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A data transmission method, related equipment and system

A data transmission and data technology, applied in the field of data transmission, can solve the problems of poor network quality, reduced data transmission reliability, failure of UE2 to receive data, etc., to achieve the effect of improving reliability

Active Publication Date: 2021-09-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] use figure 1 Although the transmission method described above can realize direct communication between UE1 and UE2, if there are problems such as poor network quality, it may cause UE2 to fail to receive data.
However, UE1 cannot perceive the data reception of UE2, so the base station cannot determine whether to allocate corresponding retransmission resources, thereby reducing the reliability of data transmission between the two UEs

Method used

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  • A data transmission method, related equipment and system
  • A data transmission method, related equipment and system
  • A data transmission method, related equipment and system

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Embodiment Construction

[0182] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

[0183] It should be understood that the technical solutions of the embodiments of the present ...

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Abstract

The embodiment of the present application discloses a method for data transmission, including: the base station sends first scheduling information to the first UE, wherein the first scheduling information is used to instruct the first UE to send to the second UE according to the first scheduling information data; the base station receives first feedback information sent by the first UE, where the first feedback information is used to indicate whether the second UE has successfully received the data; if the first feedback information indicates that the second UE has failed to receive the data, the base station sends the second UE A UE sends second scheduling information, where the second scheduling information is used to instruct the first UE to resend data to the second UE. The embodiment of the present application also provides a base station, a UE, and a data transmission system. In the embodiment of the present application, the first UE can perceive the data receiving situation of the second UE by receiving the first feedback information, so that corresponding resources can be allocated again for data retransmission, thereby improving the efficiency of data transmission between the two UEs. reliability.

Description

technical field [0001] The present application relates to the communication field, and in particular to a data transmission method, related equipment and system. Background technique [0002] Device to Device (D2D) is an end-to-end direct communication technology. The biggest difference from traditional cellular communication technology is that D2D communication no longer requires the transfer of base stations, and base stations can configure and schedule resources. And coordination, etc., assisting direct communication between terminals. Similar to D2D, direct vehicle-to-vehicle (Vehicle to Vehicle, V2V) communication can also be implemented in a Long Term Evolution-Vehicle (LTE-V) solution. Wherein, both the terminal and the vehicle belong to User Equipment (UE), and the base station can allocate time-frequency resources for each UE on the sidelink, or the UE can select time-frequency resources from a resource pool by itself. [0003] Taking D2D technology as an example,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/04H04W72/12H04L1/16H04L69/40
CPCH04L69/40H04W28/0236H04L1/1896H04L1/1887H04W72/23H04W28/04H04L1/16H04W92/18H04W76/11H04L1/189H04W72/0466H04W72/1273H04W88/04H04W88/08
Inventor 鲁振伟刘德平
Owner HUAWEI TECH CO LTD