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Method and device for feedback aiming at uplink data transmission

A technology for data transmission and line data, which is applied in the directions of digital transmission systems, transmission systems, and multiple use of transmission paths, and can solve problems such as increased signaling overhead.

Inactive Publication Date: 2017-11-21
NTT DOCOMO INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Correspondingly, the signaling overhead when the base station performs uplink scheduling in the 5G network will also greatly increase

Method used

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  • Method and device for feedback aiming at uplink data transmission
  • Method and device for feedback aiming at uplink data transmission
  • Method and device for feedback aiming at uplink data transmission

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Embodiment Construction

[0040] As mentioned above, in the application scenario of the large-connection Internet of Things, the uplink traffic volume of the 5G network will greatly increase, and correspondingly, the signaling overhead when the base station performs uplink scheduling will also greatly increase. For this reason, how to transmit uplink data in the 5G network has become a hot research technology at present.

[0041] In a traditional Long Term Evolution (LTE) system, a base station (eNB) needs to perform the following signaling interaction with a user terminal (UE) during an uplink scheduling process.

[0042] First, the UE establishes a connection with the eNB through a random access procedure; after that, when it needs to transmit uplink data, the UE sends a scheduling request (SR) to the eNB, requesting the eNB to allocate uplink resources for it; According to certain scheduling principles, the corresponding uplink resources are allocated, including: uplink time-frequency resources, ref...

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Abstract

The present invention provides a method and device for feedback aiming at uplink data transmission. In the invention, downlink control information is employed to perform feedback aiming at uplink data transmission. Therefore, different downlink resources are used aiming at different user terminals to perform feedback of uplink data transmission so as to avoid out of synchronism of a base station and user terminals in the process of uplink data transmission.

Description

technical field [0001] The present invention relates to a wireless communication system, in particular to a feedback method and a corresponding device for uplink data transmission in the wireless communication system. Background technique [0002] With the rapid development of the fourth generation mobile communication (4G), the standard formulation of the fifth generation mobile communication (5G) is also on the agenda. According to the definition of the International Telecommunication Union (ITU), 5G will have three typical application scenarios: one is enhanced mobile broadband (eMBB, Enhanced Mobile Broadband), in this scenario, the peak Internet access rate of smart terminal users can reach 10Gbps Even 20Gbps, which can support the development of large-bandwidth applications such as virtual reality, video live broadcast and sharing, and cloud access anytime and anywhere; the second is the Internet of Things (mMTC, Massive Machine Type Communication), which requires peop...

Claims

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Application Information

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IPC IPC(8): H04L1/18H04L5/00
CPCH04L1/1812H04L1/1825H04L5/0053H04L1/18
Inventor 牟勤刘柳蒋惠玲武田和晃
Owner NTT DOCOMO INC
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