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Feedback method and user equipment

A technology for user equipment and feedback information, applied in the field of communication, can solve the problems of not being able to know the success of data transmission and reducing the reliability of D2D communication.

Active Publication Date: 2018-07-31
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, regardless of the unicast or multicast mechanism in the prior art, due to the lack of a feedback mechanism, no matter whether the receiving end receives the data sent by the sending end, it will not send feedback information to the sending end, so that the sending end cannot know whether the data is sent successfully , leading to a decrease in the reliability of D2D communication

Method used

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  • Feedback method and user equipment
  • Feedback method and user equipment
  • Feedback method and user equipment

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Embodiment Construction

[0086] The network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. For the evolution of architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0087] Combine below figure 1 A possible network architecture of the embodiment of this application is introduced. figure 1 A network architecture to which this embodiment of the present application may be applicable is shown. Such as figure 1 As shown, the network architecture provided in this embodiment includes a base station 01 and a user equipment (User Equipment, UE) 02 . The UEs involved in the embodiments of the present application may inc...

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Abstract

Embodiments of the invention provide a feedback method and user equipment. The feedback method comprises the following steps that first user equipment determines feedback resources according to physical resources occupied by data sent by second user equipment and / or identification information of the second user equipment, wherein the feedback resources are determined by the first user equipment after the first user equipment receives the data sent by the second user equipment; and the first user equipment transmits feedback information to the second user equipment on the feedback resources, wherein the feedback information is used for feeding back a receiving result of the first user equipment about the data. According to the feedback method and the user equipment, the reliability of sidelink communication can be improved.

Description

technical field [0001] The present application relates to communication technologies, and in particular to a feedback method and user equipment. Background technique [0002] Device to Device (D2D) is an end-to-end direct communication technology. Different from the traditional cellular communication technology, the communication between terminals is located in the sidelink, which no longer requires the transfer of the base station. , the terminals can communicate directly with each other. The base station can configure, schedule, and coordinate resources for the sidelink, and assist terminals in direct communication. [0003] Existing D2D technologies support unicast and multicast mechanisms. A sender can send data to a receiver or a group of receivers. For 1 piece of data, the sending end will perform fixed 4 transmissions to the receiving end. Specifically, the data sent by the sending end will carry the identifier of the receiving end (unicast) or the group identifie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/16H04W72/12H04W4/70
CPCH04L1/1678H04L1/189H04W72/1221H04W72/54H04W4/70H04W72/12H04L1/1861H04L1/1896H04L2001/0093H04L5/0055H04L5/0094H04W76/11H04W72/02H04W72/0446H04W88/04
Inventor 刘德平鲁振伟高磊
Owner HUAWEI TECH CO LTD