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Feedback method, system and terminal of ack/nack

A terminal and terminal receiving technology, which is applied in transmission systems, digital transmission systems, error prevention/detection using return channels, etc., can solve problems such as ACK/NACK resource conflicts, and achieve the effect of solving ACK/NACK feedback resource conflicts

Active Publication Date: 2021-02-05
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, 5G introduces a flexible frame structure, each subframe contains both downlink transmission and uplink transmission, and the timing relationship between PDSCH and ACK / NACK will no longer be fixed, and ACK / NACK corresponding to multiple downlink PDSCHs will appear at the same time give feedback, such as figure 1 As shown in , if the ACK / NACK feedback subframe in LTE and the calculation method of the resource position in the feedback subframe are still used, the ACK / NACK resources of multiple users may collide

Method used

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  • Feedback method, system and terminal of ack/nack
  • Feedback method, system and terminal of ack/nack
  • Feedback method, system and terminal of ack/nack

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] This solution is proposed to solve the problem that ACK / NACK feedback resource conflicts of multiple users will be caused by using LTE's ACK / NACK feedback subframe and resource location determination method after the flexible frame structure is introduced in 5G.

[0029] Combine below f...

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Abstract

The invention discloses an ACK / NACK feedback method, system and terminal, and relates to the technical field of mobile communication. In the present invention, after the base station allocates resources for the ACK / NACK of each terminal, the base station sends the subframe offset indication information and resource offset indication information to the terminal through downlink signaling, and the terminal uses the received subframe offset indication information and resource offset The indication information and the detected PDCCH information determine the ACK / NACK feedback subframe and the resource position in the feedback subframe. Since the flexible subframe offset indication information and resource offset indication information are configured for different terminals and sent to the terminal for Feedback indication, thus effectively solving the problem of ACK / NACK feedback resource conflict of multiple users caused by the introduction of flexible frame structure in 5G.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to an ACK / NACK feedback method, system and terminal. Background technique [0002] With the rapid development of the mobile Internet, there is a huge demand for massive data transmission, and faster technology is needed to realize it. The research and development of 5G (fifth generation mobile communication technology) is imminent. The requirements and challenges of 5G have been raised: (1) 5G includes three application scenarios: enhanced mobile broadband scenario, massive connection MTC (Machine Type Communication, Machine Type Communication) scenario, and low latency and high reliability scenario. (2) Applications such as ultra-high-definition video, video conferencing, and 3D games in the enhanced mobile broadband scenario not only put forward higher requirements for communication speed, but also put forward higher requirements for delay. The 5G system need...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L5/00
CPCH04L1/1671H04L5/0055
Inventor 朱剑驰佘小明陈鹏杨峰义毕奇
Owner CHINA TELECOM CORP LTD