Downlink control information transmission method and device

A technology for controlling information and transmission methods, which is applied in the field of communication and can solve problems such as the inability of the DCI format to meet the requirements.

Active Publication Date: 2017-08-08
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, when future business types require smaller resource scheduling granularity and more flexible resource allocation methods, the current DCI format cannot meet the requirements

Method used

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  • Downlink control information transmission method and device
  • Downlink control information transmission method and device
  • Downlink control information transmission method and device

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Embodiment Construction

[0114] With the development of mobile technology, the future mobile communication system needs to provide lower network delay and support more abundant service types. Dynamically configure the TTI length and the resources occupied in the TTI according to business requirements (for example, it can occupy several RUs or even several REs, where RU is the English abbreviation of Resource Unit, and Chinese is the resource unit. One RU can occupy one resource unit in the frequency domain. or multiple subcarriers, which can occupy one or more symbols in the time domain), has become a trend of technological development. Aiming at such a dynamic resource allocation scenario, the embodiment of the present invention provides a DCI transmission scheme for flexible resource allocation in a variable TTI.

[0115] In the embodiment of the present invention, the base station may be an evolved base station (EvolutionalNode B, eNB or e-NodeB for short), macro base station, micro base station (a...

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Abstract

The invention discloses a downlink control information transmission method and device. According to the method and the device, transmitted downlink control information at least comprises one or more of the following information domains: a first information domain which is used for indicating a frequency domain resource size occupied by data resources scheduled by the DCI (Downlink Control Information), a second information domain which is used for indicating a time domain resource size occupied by the data resources scheduled by the DCI and a third information domain which is used for indicating N scheduled users. The resource sizes occupied by the transmission resources on the frequency domain and/or the time frequency through the downlink control information, so the downlink control information is transmitted for a flexible resource allocation scene with a variable transmission time interval.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a downlink control information transmission method and device. Background technique [0002] (1) Next Generation Mobile Communication Technology [0003] The mobile Internet is providing users with richer business experiences such as augmented reality, virtual reality, ultra-high-definition (3D) video, and mobile cloud. The Internet of Things expands the service scope of mobile communication, extending from human-to-human communication to intelligent interconnection between people and things, and between things and things, enabling mobile communication technology to penetrate into broader industries and fields. Massive device connections and diverse IoT services bring new technical challenges to mobile communications. [0004] With the continuous emergence and enrichment of new business requirements, higher performance requirements are put forward for future mobi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/23H04W72/0453H04L5/0037H04L5/0044H04L5/0091H04W72/0446H04L1/1812H04L5/0055
Inventor 王磊郑方政高雪娟潘学明孙韶辉
Owner DATANG MOBILE COMM EQUIP CO LTD
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