An antenna rate control method and system

A control method and line rate technology, applied in the field of communication, can solve problems such as the inability to adjust the power of the transmitting antenna, and achieve the effect of reducing interference

Active Publication Date: 2008-06-04
LENOVO (BEIJING) CO LTD
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a per-antenna rate control method and system to solve the problem that the per-antenna rate control method in the prior art only performs simple equal power distribution and cannot perform simple and effective power adjustment according to the modulation and coding of the transmitting antenna question

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
  • An antenna rate control method and system
  • An antenna rate control method and system
  • An antenna rate control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] On the basis of the existing PARC technology, the present invention proposes a per-antenna rate control technology for power allocation for different antennas. For the convenience of description, this technology can be abbreviated as P 2 ARC (Power Per-Antenna Rate Control). In the present invention, the base station allocates different transmitting powers on each transmitting antenna according to the feedback signal of the mobile station and the result of adaptive modulation and coding. Roughly speaking, the present invention allocates more transmit power to 16QAM modulated signals and less transmit power to QPSK modulated signals.

[0033] figure 1 It is a flow chart of the steps of the method of the present invention, as shown in the figure, the method of the present invention comprises the following steps:

[0034] Step 101, the base station obtains the SINR of different transmitting antennas according to the feedback information of the mobile station, and determi...

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 per-antenna rate control method and a system; wherein, the method comprises the steps that: a base station acquires the signal-to-interference-and-noise ratios of different transmitting antenna according to the feedback information of a mobile station and determines the modulation and coding modes adopted for each transmitting antenna according to the signal-to-interference-and-noise ratio; the balancing of the transmit power is carried out between different transmitting antennas according to the signal-to-interference-and-noise ratio of each antenna, the modulation and coding modes adopted for each transmitting antenna and the corresponding relation ensured by the target QoS. The invention can implement the balancing of the transmit power between different transmitting antennas so as to strive as much as possible to ensure that the transmission on each link meets the QoS requirement of the system without wasting the transmit power and causing the interference or strive as much as possible to ensure that each antenna uses the minimum transmit power required for acquiring the target QoS to carry out the transmitting according to the result of the adaptive modulation coding and QoS requirement of the system.

Description

technical field [0001] The invention relates to the multiple-input multiple-output technology in the communication field, in particular to a method and system for controlling the rate of each antenna. Background technique [0002] In the third-generation mobile communication broadband code division multiple access system, in order to further increase the data transmission rate, researchers have proposed a high-speed downlink packet data access technology, namely HSDPA. Recently, multiple-input multiple-output technology (MIMO) has been applied to post-3G systems to further increase the data transmission rate. Among them, a MIMO transmission technology called PARC (per-antenna-rate-control) was proposed and used as one of the candidate technologies for the 3GPP WCDMA R7 standard (see: 3GPP25.876 V1.8.0 (2005.10) -Multiple-Input Multiple Output in UTRA). The basic idea is that according to the feedback information of the mobile station, the Node B (base station) adopts diffe...

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): H04B7/26H04B7/005H04B7/02
CPCH04B7/0426H04B17/006H04B17/0067H04B17/24H04B17/336Y02D30/70
Inventor 刘云辉
Owner LENOVO (BEIJING) CO LTD
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