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HARQ and ARQ design for urllc in mobile communications

A mobile network and device technology, applied in the field of hybrid automatic repeat request and automatic repeat request design, can solve the problems of low efficiency, high reference signal/control overhead, etc., and achieve the effect of improving multiplexing efficiency

Active Publication Date: 2018-12-07
MEDIATEK SINGAPORE PTE LTD SINGAPORE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Given the above design considerations, there are some issues to overcome, for example, very low BLER and short retransmissions lead to inefficiency, which requires a new design of HARQ and BLER targets to improve efficiency
In addition, a balance needs to be struck between: (1) using preemption to support eMBB / URLLC multiplexing, where preemption has an impact on eMBB performance and user experience; and (2) using very short transmission time intervals (Transmission Time Interval, TTI) or high subcarrier spacing parameter set (numerology) to support eMBB / URLLC multiplexing without preemption, where short TTI or high subcarrier spacing parameter set will lead to high reference signal / control overhead

Method used

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  • HARQ and ARQ design for urllc in mobile communications
  • HARQ and ARQ design for urllc in mobile communications
  • HARQ and ARQ design for urllc in mobile communications

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Embodiment Construction

[0028] The present invention discloses detailed embodiments and implementations of the claimed subject matter. It is to be understood, however, that the disclosed embodiments and implementations are merely illustrations of the claimed subject matter, which may be embodied in various forms. The invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments and implementations set forth herein. Rather, these exemplary embodiments and implementations are provided so that the description of the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the following description, details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the proposed embodiments and implementations of the present invention.

[0029] overview

[0030] URLLC in NR requires downlink (Downlink, DL) and uplink (Uplink, UL) to achieve 99.999% reliabili...

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Abstract

Techniques, schemes, designs, systems and methods pertaining to HARQ and ARQ design for URLLC in mobile communications are described. A processor of a first apparatus of a mobile network performs a first transmission to a second apparatus of the mobile network in support of ultra-reliablelow-latency communications (URLLC) with a first amount of redundancy. The processor determines whether a predefined condition is met. Responsive to a determination that the predefined condition is met, the processor performs a second transmission to the second apparatus in support of the URLLC with a second amount of redundancy greater than the first amount of redundancy. The processor also multiplexes URLLC traffic and enhanced Mobile Broadband (eMBB) traffic in transmissions to the second apparatus.

Description

[0001] Cross references to related patent applications [0002] This application claims priority to US Provisional Application No. 62 / 476,933, filed March 27, 2017, which application is incorporated by reference. technical field [0003] The present invention generally relates to mobile communications, and more particularly to Hybrid Automatic Repeat Request (HARQ) and automatic repeat request (HARQ) for Ultra-Reliable Low-Latency Communications (URLLC) in mobile communications. Retransmission request (Automatic Repeat Request, ARQ) design. Background technique [0004] Unless otherwise indicated in this disclosure, the approaches described in this section are not prior art to the claims and are not admitted to be prior art by inclusion in this section. [0005] The Third Generation Partnership Project (3 rd The Generation Partnership Project (3GPP) Radio Access Network layer 1 (Radio Access Network layer 1, RAN1) specification points out that the fifth generation (5 th ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18
CPCH04L1/08H04L1/1812H04L1/1825H04L1/1864H04L1/189H04L1/1893H04L1/203H04L1/1642H04L1/1819H04L1/1822H04L1/1896H04L5/0055H04L5/0082
Inventor 阿布德卡德·麦多斯吉列斯·查比特喜瑞尔·维拉顿陈滔杨维东阿诺·屈皮亚尔
Owner MEDIATEK SINGAPORE PTE LTD SINGAPORE