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Information transmission method and information transmission device for grant-free uplink

An information transmission and authorization-free technology, which is applied in the direction of transmission system, digital transmission system, and multiple use of transmission paths, etc., can solve data information processing and other problems, achieve the effects of reducing waste, avoiding invalid transmission, and improving the efficiency of uplink spectrum

Inactive Publication Date: 2019-03-22
NTT DOCOMO INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, when it cannot be decoded correctly, the base station does not process the received data information

Method used

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  • Information transmission method and information transmission device for grant-free uplink
  • Information transmission method and information transmission device for grant-free uplink
  • Information transmission method and information transmission device for grant-free uplink

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Embodiment Construction

[0020] The method and apparatus for unlicensed uplink information transmission according to embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same elements throughout. It should be understood that the embodiments described here are merely illustrative and should not be construed as limiting the scope of the present invention. In addition, the base station may be a fixed station, NodeB, eNodeB (eNB), access point, transmission point, reception point, femto cell, small cell, etc., which is not limited herein. In addition, the user terminal (User Equipment, UE) described herein may include various types of user terminals, such as mobile terminals (or referred to as mobile stations) or fixed terminals. However, for convenience, they may sometimes be interchanged in the following text Use UEs and mobile stations locally.

[0021] According to the method and device for unlicensed...

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Abstract

The invention provides an information transmission method and an information transmission device for a grant-free uplink link. The method executed by a user terminal comprises the following step: sending access information of the user terminal; receiving response information of a base station for the access information, wherein the response information comprises acknowledgment information of the base station for the access information; and after the response information for the access information is received, sending service information that comprises data information.

Description

Technical field [0001] The present invention relates to the field of wireless communication, and in particular to a method and device for unauthorized uplink information transmission of a non-orthogonal multiple access (Non-Orthogonal Multiple Access, NOMA) system. Background technique [0002] In order to reduce signaling overhead, it has been proposed to use an unauthorized uplink for information transmission in the NOMA system. In the unlicensed uplink, when the user terminal transmits information with the base station, the user terminal sends the uplink access information required by the user terminal to the base station together with the data information to be transmitted after accessing the base station. The base station, correspondingly, the base station decodes the uplink access information and the data information to obtain the data information. [0003] Specifically, in a communication system, after the base station receives the uplink access information and data informa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/00H04L5/00H04L1/16
CPCH04L1/1607H04L5/0048H04L5/0055H04W74/004H04W74/002H04L1/16H04W74/006H04W48/14H04L5/0053H04W72/21
Inventor 牟勤刘柳刘文佳侯晓林
Owner NTT DOCOMO INC
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