Unlock instant, AI-driven research and patent intelligence for your innovation.

Physical downlink control channel transmission with specific transmission time intervals

A technology of transmission time interval and physical downlink control, applied in wireless communication, electrical components and other directions, can solve the problem of insufficient number of REs in the EPDCCH area

Active Publication Date: 2017-08-15
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the TTI is shortened, the number of REs in the supported EPDCCH region will not be enough

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Physical downlink control channel transmission with specific transmission time intervals
  • Physical downlink control channel transmission with specific transmission time intervals
  • Physical downlink control channel transmission with specific transmission time intervals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0070] Hereinafter, various exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that these drawings and descriptions relate to exemplary embodiments only. It should be noted that, from the ensuing description, alternative embodiments of the structures and methods disclosed herein are readily conceivable and may be employed without departing from the claimed principles of the disclosure.

[0071] It should be understood that these exemplary embodiments are given only to enable those skilled in the art to better understand and implement the present disclosure, but not to limit the scope of the present disclosure in any way.

[0072] The terms "including", "comprising" and similar terms used herein should be understood as open-ended terms, ie "including / comprising but not limited to". The term "based on" is "based at least in part on". The term "one embodiment" means "at least one embodiment...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention provides a method and device for physical downlink control channel transmission with specific transmission time intervals. The method comprises the step of receiving specific first configuration information of user equipment from a base station through a wireless resource control signal, wherein the first configuration information indicates a potential search area of a first physical downlink control channel for the specific transmission time interval. The method also comprises the step of in a current transmission time interval, searching the first physical downlink control channel from the potential search area for the current transmission time interval. According to the embodiment of the invention, the physical downlink control channel transmission with flexible transmission time interval lengths can be realized and control signal overheads for data transmission with the short transmission time interval smaller than 1 millisecond can be effectively reduced, so the transmission delay is reduced.

Description

technical field [0001] Embodiments of the present disclosure generally relate to the field of wireless communication, and specifically relate to a method and device for physical downlink control channel transmission with a specific transmission time interval. Background technique [0002] In existing Long Term Evolution (LTE) and / or Long Term Evolution-Advanced (LTE-A) systems, the Transmission Time Interval (TTI) for data transmission is typically 1 millisecond (ms). However, more and more applications (such as some critical applications, remote control, automatic driving and TCP applications, etc.) require shorter latency for fast response and data transmission. For example, to further reduce transmission delay, the TTI length can be reduced to 0.5ms. [0003] In the existing enhanced physical downlink control channel (EPDCCH) transmission, the base station (e.g., evolved Node B (eNB)) configures the EPDCCH search area to the user equipment (UE) through radio resource con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/14
CPCH04W72/0446H04W72/23
Inventor 熊芝兰张闽
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD