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

Quick sorting and searching device for high-capacity lookup table and method for implementing quick sorting and searching device

A technology of quick sorting and lookup table, applied in the field of keyword search, can solve the problem of taking too much time and wasting beats, and achieve the effect of high search efficiency, reduced sorting time and fast speed

Active Publication Date: 2013-11-27
UTSTARCOM TELECOM CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The binary search method, because it takes time to compare data and calculate addresses, there is a waste of beats in the search process
[0006] The commonly used method for label search is to store the label in multiple RAMs for parallel search, and search for each table entry in increments of addresses, but for the case of a large number of labels, this search method consumes too much time

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
  • Quick sorting and searching device for high-capacity lookup table and method for implementing quick sorting and searching device
  • Quick sorting and searching device for high-capacity lookup table and method for implementing quick sorting and searching device
  • Quick sorting and searching device for high-capacity lookup table and method for implementing quick sorting and searching device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The present invention will be further elaborated below in conjunction with the accompanying drawings.

[0043] Such as figure 1 As shown, the four-segment partition search device for pipeline of the present invention includes a label search module, a sort module, a pre-sort module, a control module, a lookup table, and a redundancy check module. The sorting module is respectively connected with the pre-sorting module, the control module and the lookup table, and the label search module is connected with the sorting module and the lookup table.

[0044] The pre-sort module receives the CPU configuration data, pre-sorts the CPU configuration data, sorts them in ascending order of tags, and maintains a pre-sort table;

[0045] The control module controls the sorting module to perform a sorting operation according to the received CPU instruction;

[0046] The sorting module includes an adding sorting module and a deleting sorting module, wherein the adding sorting module ...

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 quick sorting and searching device for a high-capacity lookup table and a method for implementing the quick sorting and searching device. The quick sorting and searching device is provided with a pre-sorting module, a control module, a tag searching module and a sorting module. Searching matches with sorting, the priority of searching is higher than that of sorting, sorting can be interrupted to start searching while sorting is carried out when searching is not required, and a searching result cannot be affected by interrupted sorting operation. Besides, addition sorting operation and deletion sorting operation are carried out by a method based on pre-sorting, a streamline four-section partitioned searching method is used for searching tags, utilization efficiency of a cycle is improved, and searching efficiency and speed are high. In addition, the quick sorting and searching device and the method not only can be used for searching the tags, but also can be used for searching other optional keywords.

Description

technical field [0001] The invention relates to the technical field of keyword search, in particular to a device for quickly sorting and searching a large-capacity lookup table and an implementation method thereof. Background technique [0002] PW (Pseudo-Wire, Pseudo-Wire) labels are used for point-to-point connections between edge router pairs. In FPGA (Field Programmable Gate Array, Field Programmable Gate Array) design, the PW label configured by the CPU and the channel number ID corresponding to the label are stored in a lookup table. [0003] Traditional one-to-one lookup method: For a given value x, compare from the first address of the lookup table, if they are equal, the match is successful, and the search ends. If they are not equal, continue to compare with the next address data until the match is successful. This method is simple to implement and consumes less logic resources, but although the one-to-one search method is simple to implement, for a depth of 2 n...

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): G06F17/30
Inventor 张静赵书鹏
Owner UTSTARCOM TELECOM 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