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

Method for generating transmitting signal vector in state of effective transmission channel in wireless communication system

A wireless communication system and a technology for transmitting signals, which are applied in radio transmission systems, transmission systems, multiplexing communications, etc., and can solve problems such as optimization standards that do not consider directional characteristics

Inactive Publication Date: 2009-08-19
ノキアソリューションズアンドネットワークスゲゼルシャフトミットベシュレンクテルハフツングウントコンパニーコマンディトゲゼルシャフト
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, other optimization criteria like the directional characteristics of the transmitted signal are not considered in this method

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 generating transmitting signal vector in state of effective transmission channel in wireless communication system
  • Method for generating transmitting signal vector in state of effective transmission channel in wireless communication system
  • Method for generating transmitting signal vector in state of effective transmission channel in wireless communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] specific implementation plan

[0043] Next, observe the transmission model of the downlink segment in a cellular mobile radio system unit, such as figure 1 shown.

[0044] In this cell, K mobile stations are simultaneously active MS, which are powered by the base station or transmitting station BS to which the cell belongs. Use on the transmitter station BS with K B The group antennas of the antenna unit, in contrast, use the receive antennas on each MS. For each MS, the resulting wireless scheme can be passed with K B User-specific network simulation of inputs and an output, see figure 1 . In this network, the channel impulse response of dimension W

[0045] h ‾ ( k , k B ) = ( h ‾ ...

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 relates to a method for generating a transmitted signal vector s in a wireless communication system with at least one transmitting station (BS) and at least one receiving station (MS), wherein the transmitted signal vector s = M·d by Produced at least by the linear modulation of the data vector d to be transmitted by the modulation matrix M; the transmitting station (BS) includes a B Antennas with antenna elements, where K B ≥1, a single signal s is transmitted through this antenna (K) B ;The transmitted signal vector s includes as components a single signal s (K) B , where K B = 1...K B , is characterized in that a Hermitian matrix R is proposed to describe the emission characteristics, a resulting matrix for evaluating the transmitted signal vector s and the matrix R is constructed in Hermitian form, which results in a predetermined transmission in the transmitting station Conditions, the modulation matrix M is derived from the result matrix, and the single signal s (K) B It is calculated using the modulation matrix M before transmission.

Description

technical field [0001] The invention relates to a method for generating transmit signal vectors in a radio communication system with at least one transmitting station and at least one receiving station. Background technique [0002] In wireless-communication systems, information (such as voice, image information, video information, SMS (Short Message Service) or other data) is transmitted by means of electromagnetic waves through a wireless cross point between a transmitting station and a receiving station (base station or subscriber station) transmission. In this case, electromagnetic waves are transmitted using a carrier frequency in a frequency band specified by the respective systems. For the employed GSM mobile communication system (Global System for Mobile Communications), carrier frequencies of 900, 1800 and 1900 MHz are used. For future mobile communication systems using CDMA or TD / CDMA transmission methods, such as UMTS (Universal Mobile Telecommunications System)...

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): H04J13/02H04B7/26H04B1/02H04B1/707H04B7/204H04Q7/20H04Q7/30
CPCH04B1/707
Inventor P·-W·拜尔M·哈尔德特C·A·约藤M·莫伊雷尔H·特雷格尔
Owner ノキアソリューションズアンドネットワークスゲゼルシャフトミットベシュレンクテルハフツングウントコンパニーコマンディトゲゼルシャフト
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