US2010046654A1

5G,4G,3G

Title

COMMUNICATION DEVICE AND COMMUNICATION SYSTEM BY MULTICARRIER TRANSMISSION SYSTEM

Application Number:

JP20130091586

Publication Date:

25-02-2010

Current Assignee:

Family ID:

Application Date:

28-10-2009

Declaring Company:

Publication Country:

US

Priority Date:

29-10-2004

Title

COMMUNICATION DEVICE AND COMMUNICATION SYSTEM BY MULTICARRIER TRANSMISSION SYSTEM

Application Number:

JP20130091586

Family ID:

Publication Country:

US

Publication Date:

25-02-2010

Application Date:

28-10-2009

Priority Date:

29-10-2004

Current Assignee:

Declaring Company:

Abstract  Abstract

The invention claims a communication device and communication system based on multi-carrier transmission mode. The communication system executes the communications among many communication devices (10 20) based on a mode of multi-carrier transmission the whole frequency band allocated to the communication system is divided into many frequency bands with the bandwidth (e.g. frequency band 1 to frequency band 4) next the given frequency band (e.g. frequency 1) of these divided frequency bands is used for transmitting the using information of the frequency band so as to confirm the allocation of the rest frequency bands (frequency band 2 to frequency band 4) used among said communication device. Said given frequency band includes the main frequency band which transmits the data channel information and the expanding frequency band which can affix and transmit further datum to the main frequency band besides the control channel information of said using information of the frequency band. And said main frequency band and expanding frequency band can change said frequency band which should be used or add and subtract the quantity of the frequency bands along the time. Each said main frequency band and each said expanding frequency band reused through certain several said communication devices.

A communication system in which communication devices (10 20) communicate with each other by multicarrier transmission method. The whole frequency band assigned to the communication system is divided into frequency bands (for example band 1 to band 4) with a constant band width. Using a specific band (for example band 1) of the divided bands use frequency band information is transmitted and thereby assignment of the other bands (band 2 to band 4) to be used by the communication devices is determined. The specific band is used as the main band for transmitting not only control channel information including the use frequency band information but also data channel information. To the main band an expansion band for transmitting additional data channel information can be added. For the main and expansion bands the above frequency bands to be used can be varied with time and the number of frequency bands can be changed. Both the main band expansion bands are preferably multiplexedly used by some communication devices.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.