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

Method for dynamic frequency reuse based on service types in LTE system

A technology of business type and dynamic frequency, applied in the direction of location information-based services, electrical components, wireless communication, etc., can solve problems such as effective guarantee of resources, and achieve the effect of convenient network operation and maintenance, simple implementation, and low implementation complexity

Inactive Publication Date: 2017-10-20
CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD
View PDF10 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0031] Various services have corresponding typical applications and QoS requirements, but the existing dynamic frequency allocation scheme cannot effectively guarantee resources according to the above service characteristics and QoS requirements

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 for dynamic frequency reuse based on service types in LTE system
  • Method for dynamic frequency reuse based on service types in LTE system
  • Method for dynamic frequency reuse based on service types in LTE system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0100] Assume that all base stations of an operator’s LTE network adopt a three-sector network, and its spectrum bandwidth is 20MHz; 1 / 2 of the coverage radius of the cell is used as the threshold, and the users in the center area or edge area of ​​the cell are determined according to formula (1) . Lag time T1 is 5s. The throughput of conversational, interactive, streaming, and background services in the cell is 4Mbps, 6Mbps, 8Mbps, and 6Mbps in turn, and their weighting coefficients are all 0.25, so the equivalent service throughput of a single cell is S=4*0.25+6 *0.25+8*0.25+6*0.25=6Mbps, adjust the value of the proportional coefficient η to 0.1, then S m =S*η=0.6Mbps. The weighting coefficients for the throughput of conversational, interactive, streaming, and background services of users in the edge area covered by the base station sector are 0.4, 0.3, 0.25, and 0.25 in sequence. initial bandwidth B b It is 2MHz; the delay time T2 is 10s; the system processing unit is i...

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

A method for dynamic frequency reuse based on service types in an LTE system includes the following steps: step 1: a cell center user and a cell edge user are determined according to a cell edge definition method; step 2: the cell center user is provided with an all N Bandwidth, and the cell edge user is provided with an initial bandwidth Bb; step 3: when the bandwidth B of the user of an edge area covered by a base station sector meets the adjustment condition, and still after T2 expires, the bandwidth adjustment is performed for the cell edge user.

Description

technical field [0001] The invention relates to a dynamic frequency multiplexing method based on service type in an LTE system. Background technique [0002] LTE (Long Term Evolution, long-term evolution) adopts OFDMA technology (Orthogonal Frequency Divided Multiple Access, Orthogonal Frequency Division Multiple Access technology), OFDMA technology uses the orthogonality between frequencies as a way to distinguish users, and carries user information On different carriers that are orthogonal to each other, the system can achieve a frequency reuse factor of 1, that is, all cells within the coverage of the entire system can use the same frequency band to provide services for users in this cell. Although factors such as carrier frequency and phase offset will cause interference between sub-channels, this interference can be minimized by using advanced wireless signal processing algorithms at the physical layer. Therefore, the interference within the cell is very small, and the...

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): H04W72/04H04W72/08
CPCH04W72/0453H04W4/021H04W72/51H04W72/542
Inventor 李新程铄雅王强彭雄根房树森陈旭奇
Owner CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD