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

Method and device for determining distribution of EPDCCH (Enhanced Physical Downlink Control Channel) candidates

A distributed and quantitative technology, applied in network traffic/resource management, electrical components, wireless communication, etc., can solve problems affecting blind detection performance, etc.

Inactive Publication Date: 2014-05-21
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

Correspondingly, the distribution of EPDCCH candidates in each EPDCCH set and each aggregation level, that is, the number of EPDCCH candidates of each aggregation level in each EPDCCH set, will affect the performance of blind detection

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
  • Method and device for determining distribution of EPDCCH (Enhanced Physical Downlink Control Channel) candidates
  • Method and device for determining distribution of EPDCCH (Enhanced Physical Downlink Control Channel) candidates
  • Method and device for determining distribution of EPDCCH (Enhanced Physical Downlink Control Channel) candidates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] According to a specific embodiment of the present invention, a method for determining the distribution of EPDCCH candidates in one or more enhanced physical downlink control channel EPDCCH sets is provided.

[0055] According to another specific embodiment of the present invention, an apparatus for determining the distribution of EPDCCH candidates in one or more enhanced physical downlink control channel EPDCCH sets is provided, which includes an acquiring unit and a determining unit.

[0056] figure 2 A flowchart of a method according to a specific embodiment of the present invention is shown.

[0057] refer to figure 2 , in step S201, the obtaining unit obtains EPDCCH configuration and subframe structure, and the EPDCCH configuration includes KD, KL, ND i , NL j , i=1...KD, j=1...KL, where KD is the number of distributed EPDCCH sets in the one or more EPDCCHs, and KL is the centralized EPDCCH set in the one or more EPDCCHs number of ND i is the number of physic...

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 invention relates to a method and a device for determining the distribution of EPDCCH (Enhanced Physical Downlink Control Channel) candidates in one or more EPDCCH sets. The method comprises the steps of: A, obtaining EPDCCH configuration and a subframe structure, wherein the EPDCCH configuration comprises KD, KL, NDi, NLj, i is equal to 1...KD, j is equal to 1... KL, KD and KL respectively are the quantities of distributed EPDCCH sets and localised EPDCCH sets, NDi and NLj respectively are the quantity of PRB (Physical Resource Block) pairs included in the i-th distributed EPDCCH set and the j-th localised EPDCCH set; B, according to the EPDCCH configuration, the subframe structure and correspondence between each of the EPDCCH configuration and the subframe structure and the distribution of the EPDCCH candidates, determining the distribution of EPDCCH candidate and q is equal to 1...Q, wherein Q is the quantity of available aggregation levels corresponding to the subframe structure, and the quantity of EPDCCH candidates with the aggregation level of ALq in the i-th distributed EPDCCH set and the j-th localised EPDCCH set, ALq is the q-th aggregation level in the available aggregation levels, and the sum is the nonnegative positive integer power of 0 or 2.

Description

technical field [0001] The present invention relates to a physical downlink control channel (Physical Downlink Control Channel, PDCCH) in a wireless communication network, in particular to a method and device for determining the distribution of enhanced physical downlink control channel (Enhanced PDCCH, EPDCCH) candidates. Background technique [0002] In 3GPP-LTE (the 3 rd In Generation Partnership Project Long Term Evolution) Release 11, EPDCCH is introduced. Compared with traditional PDCCH, EPDCCH aims to obtain greater scheduling capability and higher spectrum efficiency. Similar to the traditional PDCCH, the basic resource element of the EPDCCH is defined as an enhanced control channel element (Enhanced Control Channel Element, ECCE). Multiple ECCEs can be aggregated according to different aggregation levels (Aggregation Level, AL) to support link adaptation (Link Adaptation) transmission of downlink control information (Downlink Control Information, DCI). For the E...

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
IPC IPC(8): H04W28/16
Inventor 刘铮蒋琦马修·贝克黄晟峰
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