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Data receiving and sending method and terminal device

A technology of a terminal device and a receiving method, which is applied in the field of communication, can solve problems such as resource waste and low detection efficiency, and achieve the effect of improving reception efficiency and reducing the number of blind detection times

Active Publication Date: 2020-10-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] No matter on the main link or on the sidelink, there are many terminals, even if they are not scheduled terminals, they will detect DCI or SCI. In addition to the waste of resources, the scheduled terminal also needs to go through a lot of blind detection to receive DCI or SCI, and the detection efficiency is low.

Method used

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  • Data receiving and sending method and terminal device
  • Data receiving and sending method and terminal device
  • Data receiving and sending method and terminal device

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Embodiment Construction

[0241] Embodiments of the present application are described below in conjunction with the accompanying drawings. Those of ordinary skill in the art know that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0242] The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and are 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, metho...

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Abstract

The application discloses a data receiving method that can be applied to Internet of Vehicles, for example, a V2X, LTE-V, V2V and the like. A first terminal device can receive first control information from a second terminal device, then receive second control information from the second terminal device according to the first control information, and further receive data sent by the second terminal device according to the first control information and the second control information. Therefore, the second control information and the data can be received by detecting the first control information with fewer blind detection times, so that the receiving efficiency of the second control information and the data is improved.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method for receiving and sending data and a terminal device. Background technique [0002] Terminals can communicate with network equipment or directly with other terminals. Usually, the communication link between network equipment and terminals is called the main link or cellular communication link, and the communication link between terminals is called sidelink. Link (sidelink, SL) or auxiliary communication link. [0003] When data transmission is performed on the main link, the network device can schedule terminals to receive data or send data, and when data transmission is performed on the sidelink, the terminal can schedule other terminals to receive data or send data. During the scheduling process of the main link, the network device sends downlink control information (DCI), and during the scheduling process of the sidelink, the terminal performin...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L5/00
CPCH04L1/0038H04L1/0003H04L1/0009H04L5/0053H04L1/0036H04L1/0023H04W92/18H04L5/0048H04L5/0044H04L5/0064H04L5/0055H04L5/0057H04W84/005H04W4/40H04L1/0031H04L1/0026H04L1/1896H04W72/20H04W72/1273H04W72/23
Inventor 张莉莉张兴炜黎超
Owner HUAWEI TECH CO LTD
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