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

Transmitter and method for transmitting symbols over wireless communication channel

A transmitter and symbol technology, applied in the field of space modulation, can solve the problem of mm wave transmission being indistinguishable

Active Publication Date: 2019-09-13
MITSUBISHI ELECTRIC CORP
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mm-wave transmissions from different antennas may be indistinguishable from each other due to the dense packing of antenna elements in the same aperture

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
  • Transmitter and method for transmitting symbols over wireless communication channel
  • Transmitter and method for transmitting symbols over wireless communication channel
  • Transmitter and method for transmitting symbols over wireless communication channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Figure 1A A block diagram of a transmitter 100 for transmitting symbols over a wireless communication channel is shown in accordance with some embodiments. The transmitter 100 includes a plurality of antennas 101 for beamforming at different angles of departure (AoD) 101a, 102a, 103a and 104a. In one embodiment, beamforming may form a transmit beam at each time point, for example, beam 102a. AoD may include one or a combination of an azimuth and an elevation angle of a transmitted beam.

[0028] In some implementations, an AoD and / or an index of an AoD is selected to convey information. To this end, different AoDs are selected based on the different information values ​​to be sent. This principle is referred to herein as spatial beamforming modulation. Spatial beamforming modulation utilizes the AoD of the transmit beam as an additional source of information.

[0029] To this end, the transmitter 100 comprises an information interface 140 which receives a symbol se...

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 transmitter includes a plurality of antennas for beamforming with different angles of departure (AoD), an information interface to receive a sequence of symbols including a first symbol and a secondsymbol and a modulator to cause the plurality of antennas to form a transmission beam with an AoD selected according to a value of the first symbol and modulated according to a value of the second symbol.

Description

technical field [0001] The present invention relates to wireless communication systems, and more particularly, to spatial modulation for increasing transmission rates. Background technique [0002] Millimeter waves (mm waves) are radio waves with wavelengths in the range of 1 millimeter (mm) to 10 mm, which correspond to radio frequencies of 30 gigahertz (GHz) to 300 GHz. These frequencies are also known as extremely high frequency (EHF) bands as defined by the International Telecommunication Union (ITU). [0003] mm waves exhibit unique propagation properties. For example, mm waves suffer from higher propagation losses, are less capable of penetrating objects such as buildings, walls, leaves, and are more susceptible to airborne particles (e.g., raindrops) than lower frequency radio waves. Easily absorbed, deflected and diffracted by the atmosphere. On the other hand, due to the smaller wavelength of mm-wave, more antennas can be packed into a relatively small area, allo...

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): H04B7/02H04B7/06H04B7/10H04B14/00
CPCH04B14/006H04B7/0619H04B7/0695H04B7/0617H04L5/0048H04B7/0626H04B7/02H04B7/10H04B7/0691
Inventor 金耕进丁亚聪秋浓俊昭M·帕约维齐菲利普·奥尔利克
Owner MITSUBISHI ELECTRIC CORP