Unlock instant, AI-driven research and patent intelligence for your innovation.

Resource frequency-hopping allocation method

An allocation method and frequency hopping technology, applied in frequency diversity, diversity/multi-antenna systems, orthogonal multiplexing systems, etc., can solve problems such as PAPR/CM increase, large frequency diversity gain, etc., to maintain single carrier The effect of the characteristic

Active Publication Date: 2012-02-29
ZTE CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for resource allocation and frequency hopping on the basis of the LFDMA transmission scheme based on frequency hopping for the 3GPP LTE uplink transmission scheme to solve the problem of PAPR / CM increase of the system, In order to obtain a large frequency diversity gain, while ensuring the single-carrier characteristics of the uplink sub-carrier continuous transmission

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
  • Resource frequency-hopping allocation method
  • Resource frequency-hopping allocation method
  • Resource frequency-hopping allocation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] After research and analysis, the PAPR / CM increase of the system caused by frequency hopping in the usual way is caused by users occupying discontinuous subcarriers. Therefore, the method of the present invention overcomes this problem by allocating continuous resource blocks in the frequency domain to the same user during frequency hopping.

[0026] 3GPP LTE uplink frame structure such as figure 1 shown. One of the 1ms subframes (subframe) contains two slots (slots), called the first slot and the second slot, and each slot contains 7 short CP OFDM (orthogonal frequency division multiplexing) )symbol. The fourth OFDM symbol of each time slot carries a user pilot signal. According to different bandwidths, an OFDM symbol contains different numbers of available subcarriers. A resource block (Resource Block) is one time slot long in the time domain, and has 12 consecutive subcarriers in the frequency domain. A resource block is the smallest unit of LTE uplink allocation....

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 provides a resource frequency-hopping distribution method which is applied to an orthogonal frequency division multiplexing system and is characterized in that to all users needing frequency hopping, the system chooses continuous resource blocks of identical numbers to distribute to the users in the subsequent time slot of the current time slot after distributing continuous resourceblocks to users in current time slot, and the position of each user distributed with the resource blocks in the subsequent time slot is not the same with the position distributed with the resource blocks in the current time slot. The method of the invention does not need extra signaling expense, users can find out the corresponding data according to the frequency-hopping rules and can take up continuous frequency spectrum according to own needs for bandwidth, so not only the single carrier characteristic can be maintained, but also the ideal frequency diversity gain can be gained.

Description

technical field [0001] The present invention relates to a mobile communication system, in particular to a single-carrier OFDM system, such as 3GPP (3rdGeneration Partnership Project, third generation partnership project) LTE (Long TermEvolution, long-term evolution plan) frequency hopping allocation of uplink resources under the condition of maintaining single-carrier characteristics method. Background technique [0002] In order to meet people's ever-growing needs for mobile communications, there are some basic requirements for the selection of uplink wireless transmission technologies: such as support for scalable bandwidth, moderate PAPR (PeakAverage Power Ration, peak-to-average ratio) / CM (cubic metric , third-order metric), guarantee the orthogonality of uplink transmission, etc. The single carrier transmission scheme SC-FDMA (Single Carrier Frequency Division Multiple Address, single carrier frequency division multiple access) has low PAPR / CM, can improve power effici...

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): H04B7/12H04J11/00H04W72/04
Inventor 戴博郁光辉张峻峰
Owner ZTE CORP
PatSnap Eureka logo

PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.

X (Twitter)LinkedInYouTubeSubstack

© 2026 PatSnap. All rights reserved. 

Terms of Service

 | 

Privacy policy

 | 

Modern Slavery Act Transparency Statement