Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A way to determine the search space

A technology of search space and physical downlink control, which is applied in the directions of signaling distribution, electrical components, transmission path sub-channel distribution, etc., and can solve problems such as inconsistent design concepts and increasing the complexity of MTC device implementation.

Active Publication Date: 2018-08-14
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this greatly increases the complexity of MTC equipment implementation; it does not conform to the low-cost and easy-to-implement design concept of MTC equipment itself

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
  • A way to determine the search space
  • A way to determine the search space
  • A way to determine the search space

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the invention can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not limiting, and the scope of the invention is defined by the appended claims.

[0037] First, in the existing 3GPP specifications, the search space of the PDCCH channel is defined by the following formula:

[0038]

[0039] Among them, L represents the aggregation level AL; Y k Represents a certain hash function; m=0,..., M-1, and M represents the number of possible PDCCH channels; N CC...

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

A method for determining a search space of a physical downlink control channel in a wireless communication system, wherein the physical downlink control channel is periodically repeated in the time domain, and the method is characterized in that: the repetition of the physical downlink control channel During the period, the starting position of the search space of the physical downlink control channel remains unchanged.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to the technical field of wireless communication. Background technique [0002] In the field of wireless communication, in recent years, Machine Type Communication (MTC for short) is receiving continuous attention. Some MTC devices, such as typical smart meters, need to be installed in the basement, so the penetration loss is so great that these devices may not be able to effectively connect with network devices. Therefore, 3GPP has set up a topic specifically aimed at increasing the coverage of low-cost MTC devices. The goal is to increase the coverage of such MTC devices by up to 15dB. [0003] In the existing 3GPP specification, data transmission is scheduled based on a physical downlink control channel (Physical Downlink Control Channel, PDCCH for short). In order to achieve a coverage gain of 15dB on the MTC device, the corresponding PDCCH signal is expected to...

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 Patents(China)
IPC IPC(8): H04W72/02
CPCH04W4/70H04W72/02H04W72/23H04L5/0053
Inventor 陈宇黄晟锋张长
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com