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

Detecting method and device for vertical-bell laboratory layered space-time code

A detection method and technology of detection equipment, which are applied in the directions of space transmit diversity, diversity/multi-antenna system, radio transmission system, etc., can solve the problems of complex detection process and limitation of bit error performance, so as to suppress error propagation and improve bit error performance. Effect

Inactive Publication Date: 2007-11-14
ALCATEL LUCENT SHANGHAI BELL CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its detection process is too complicated, and there are still some inter-layer error propagation, and the bit error performance is still limited to a certain extent

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
  • Detecting method and device for vertical-bell laboratory layered space-time code
  • Detecting method and device for vertical-bell laboratory layered space-time code
  • Detecting method and device for vertical-bell laboratory layered space-time code

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0070] The V-BLAST detection method and equipment according to the present invention will be described in detail below with reference to the accompanying drawings.

[0071] The MIMO system for signal detection using the V-BLAST detection method according to the present invention is shown in FIG. 1. As mentioned earlier, the system has M transmitting antennas and N receiving antennas, where 11 , A 2 ,..., a M Respectively represent the components of the transmit symbol vector a sent from each transmit antenna, where the transmit symbol vector a=(a 1 , A 2 ,..., a M ) T , Which means that the vector (a 1 , A 2 ,..., a M ) A vector of M rows and 1 column obtained after transposition.

[0072] The V-BLAST detection method according to the present invention is implemented on the basis of the aforementioned Ordering-SICV-BLAST detection method by further introducing an outer closed loop iteration step. Fig. 2 shows a flow chart of the V-BLAST detection method according to the present in...

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

This invention discloses a V-BLAST test method in MIMO system including the following steps: 1, orderly detecting each detection component of emit symbol vectors according to the optimum detection sequence and taking the first detected component as the first reference component used in continuous perturbation offset detection method based on the operation sequence, taking the signal having the highest space diversity steps as the known signal to be cancelled from the receive symbol vectors then to detect other newly detected component in terms of the inverse sequence of the optimum detection sequence taking the last detected new component as the second reference component, comparing if the first one is equal to the second, when they are the same, outputting the new component of inverse detection as the final test result, otherwise, taking the second component as the first new reference component and repeating the above steps.

Description

Technical field [0001] The present invention relates to the field of wireless communication, in particular to a vertical Bell Laboratories Layered Space-Time (Vertical Bell Laboratories Layered Space-Time, V-BLAST) code detection method and equipment. Background technique [0002] With the development of wireless communication technology and the diversification of information requirements, people have gradually shifted their attention from pure voice services to multimedia services. However, unlike wired communication, wireless communication is restricted by many factors such as spectrum resources, transmission power, and multipath fading. Among them, the spectrum utilization rate directly related to the capacity of the wireless communication system has become the focus of attention. [0003] In order to effectively improve the spectrum utilization of the wireless communication system, a Multiple Input Multiple Output (MIMO) system is proposed. In this system, multiple transmitti...

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): H04B7/04H04B7/06H04B7/08
CPCH04B7/0854H04B7/04H04B7/0891
Inventor 李栋杨红卫蔡立羽
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