Method and apparatus for fast implementing pre-coding

A precoding method and precoding technology, applied in diversity/multi-antenna systems, space transmit diversity, etc., can solve the problems of system resource occupation and tediousness, and achieve the effects of saving system resources, ensuring accuracy, and ensuring data processing accuracy

Active Publication Date: 2009-07-08
ZTE CORP
View PDF0 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the required precoding codebook is usually calculated in real time each time precoding i

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 apparatus for fast implementing pre-coding
  • Method and apparatus for fast implementing pre-coding
  • Method and apparatus for fast implementing pre-coding

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0038] figure 1 The structure diagram of the device for quickly realizing precoding in this embodiment includes: a precoding codebook table building module, a precoding codebook table storage unit, and a precoding mode setting module;

[0039] The precoding codebook table building module is used to calculate the precoding codebook according to the number of antennas and the number of mapping layers on the different eNodeB side, and construct the precoding codebook table accordingly and store it in the precoding codebook table storage unit;

[0040] The precoding mode setting module is used to preset different terminal speed levels and the precoding mode corresponding to each terminal speed level;

[0041] The precoding module is used to receive the motion speed fed back when the terminal accesses the base station, determine the precoding method to b...

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 discloses a method and a device for rapidly implementing pre-coding. The device comprises a pre-coding module, a pre-coding code book table storage unit, a pre-coding code book table construction module and a pre-coding mode setting module. The method comprises the following steps: (A) the pre-coding code book table construction module establishes and stores a pre-coding code book table; (B) the pre-coding mode setting module sets different terminal velocity grades and relevant pre-coding modes; (C) when a terminal accesses to a base station, the pre-coding module determines a standby pre-coding mode according to the terminal velocity grade of the terminal, and searching pre-coding code books from the pre-coding code book table according to the number of the current base station-side antennae and the number of the current base station-side mapping layers; and (D) the pre-coding module performs the pre-coding operation by use of the standby pre-coding mode and the searched pre-coding code books. The method ensures the data processing accuracy while reducing the complexity of pre-coding operation, reduces the processing time delay, saves the system resources, and ensures the pre-coding accuracy.

Description

technical field [0001] The invention relates to a multi-antenna processing technology in the field of mobile communication, in particular to a method and device for quickly realizing precoding. Background technique [0002] Generally speaking, precoding is divided into single-antenna transmission, spatial multiplexing, and transmit diversity precoding. What kind of operation mode is used by the system? ) physical layer sampling analysis indicators (such as rank indication information (Rank Indication, referred to as RI), precoding matrix indication information (Precoding Matrix Indicator, referred to as PMI) and channel quality indication information (ChannelQuality Indication, referred to as CQI)) to determine , and then configure and implement at the physical layers on both sides through the downlink control channel. [0003] Suppose the precoding input is: x(i)=[x (0) (i)...x (v-1) (i)] T (i=0,1,...,M symb -1), the output of the precoding module is: y(i)=[...y (p) (...

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): H04B7/06
Inventor 梅时春王衍文
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap