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

A control method and system for outer loop power

A control method and power technology, applied in the field of communication, can solve the problems of waste of transmission power, increase of co-channel interference in reverse sectors and between sectors, and inability to meet channel conditions at the same time, so as to reduce transmission power and reduce co-channel interference. Effect

Inactive Publication Date: 2011-12-07
ZTE CORP
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is commonly used to adjust the outer loop power by adjusting the SNR (Carrier to Interference and Noise Ratio, CINR) value of the uplink channel. However, the Orthogonal Frequency Division Multiple Access (OFDMA) communication system There are multiple modulation and coding schemes (Modulation and Coding Scheme, MCS), each MCS has a separate threshold, directly adjusting the CINR value will make the threshold of each MCS be affected equally, if all MCS in the OFDMA communication system If it is adjusted at the same time, the channel conditions of each terminal cannot be satisfied at the same time. For example, for terminals with better channel conditions, there may be a certain waste of transmit power, and to a certain extent, the same frequency in the reverse sector and between sectors will be increased. interference

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
  • A control method and system for outer loop power
  • A control method and system for outer loop power
  • A control method and system for outer loop power

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0037] figure 1 It is a flowchart of an outer loop power control method according to an embodiment of the present invention, please refer to figure 1 :

[0038] S11. Obtain an uplink packet error rate under the threshold of the current modulation and coding scheme;

[0039] S12. Adjust the threshold of the current modulation and coding scheme according to the packet error rate;

[0040] S13. Adjust the outer loop power according to the adjusted threshold of the modulation and coding scheme.

[0041] figure 2 It is a flowchart of an outer loop power control method according to another embodiment of the present invention, please refer to figure 2 :

[0042] S21. HARQ counts the total number of uplink first-transmission data packets under the current MCS threshold and the number of first-transmission error data packets within...

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 present invention discloses a control method and system of outer loop power, the method includes obtaining the uplink packet error rate under the threshold of the current modulation and coding scheme; adjusting the threshold of the current modulation and coding scheme according to the packet error rate; according to the adjusted The threshold of the modulation coding scheme adjusts the outer loop power. The present invention provides a more reasonable outer loop power control method and system through the above technical solutions.

Description

technical field [0001] The present invention relates to the communication field, in particular to a control method and system for outer loop power. Background technique [0002] In the wireless communication environment, in order to overcome the influence of wireless signal slow fading on the signal, prevent the power from rising, and reduce the transmission power as much as possible while satisfying the communication quality, it is necessary to introduce power control. At present, it is commonly used to adjust the outer loop power by adjusting the SNR (Carrier to Interference and Noise Ratio, CINR) value of the uplink channel. However, the Orthogonal Frequency Division Multiple Access (OFDMA) communication system There are multiple modulation and coding schemes (Modulation and Coding Scheme, MCS), each MCS has a separate threshold, directly adjusting the CINR value will make the threshold of each MCS be affected equally, if all MCS in the OFDMA communication system If it i...

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 Applications(China)
IPC IPC(8): H04W52/12H04L1/18
Inventor 殷翔
Owner ZTE CORP
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