CN101512943A - Transfer method, transfer system, transmitter apparatus and receiver apparatus - Google Patents

Transfer method, transfer system, transmitter apparatus and receiver apparatus Download PDF

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Publication number
CN101512943A
CN101512943A CNA2007800329943A CN200780032994A CN101512943A CN 101512943 A CN101512943 A CN 101512943A CN A2007800329943 A CNA2007800329943 A CN A2007800329943A CN 200780032994 A CN200780032994 A CN 200780032994A CN 101512943 A CN101512943 A CN 101512943A
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band
configuration
frequency spectrum
service
receiving system
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CN101512943B (en
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三瓶政一
宫本伸一
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Osaka University NUC
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Osaka University NUC
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

To provide a transfer method and others wherein unused areas are efficiently utilized to achieve a high-speed communication. In a transmitter apparatus, a modulated digital signal is converted to the spectra of frequency bands by a converting part. The converted spectra are further distributed into a plurality of used bands established in main and auxiliary bands. The digital signal, which is related to the spectra in the main and auxiliary bands including the spectra as distributed by a distributing part, is transmitted by a transmitting part to a receiver apparatus. A receiving part of the receiver apparatus receives the transmitted digital signal related to the spectra in the main and auxiliary bands. The spectra in the used bands as established by a used-band establishing part are extracted by an extracting part. Finally, the spectra as extracted by the extracting part are combined by a combining part.

Description

Transfer approach, transfer system, dispensing device and receiving system
Technical field
The present invention relates to a kind of at the transfer approach, transfer system, dispensing device and the receiving system that send the digital signal after receiving modulation between dispensing device and receiving system.
Background technology
With portable telephone, WLAN (Local Area Network), WiMAX a plurality of wireless communication system applicationization such as broadband WLAN such as (Worldwide Interoperability for Microwave Access).The urgent problem of frequency resource that generation increases, can utilize along with this wireless communication system.Especially, the frequency band below the 6GHz is used for received terrestrial digital broadcasting and portable telephone etc. thick and fast in the whole nation, this problem is bigger.In order to eliminate this problem, carry out about cognitive (cognitive) wireless research.
Cognition wireless is that associating is sought on the limit between a plurality of wireless systems, and frontier defense ends the complicated new technology motion of wireless communication system.Cognition wireless makes wireless devices such as terminal or base station have the function of identification or cognitive (cognitive) wireless radio wave environment on every side.Corresponding to identification or cognitive wireless radio wave environment, wireless device selects to be used for the frequency of radio communication and mode etc. automatically, improves the utilance of frequency.Thus, the user can enjoy data communication at a high speed and stable communication service.
In addition, as the technology of seeking in 3GPP (3rd Generation Partnership Project), in the frequency band that distributes, effectively to utilize frequency spectrum, research SC-FDMA (Single Carriertransmission Frequency Division Multiple Access).Be proposed among the SC-FDMA technology (for example, with reference to non-patent literature 1) of the frequency spectrum of suitable insertion 0 between each frequency spectrum behind the DFT (Discrete Fourier Transform).In addition, the frequency spectrum that will also disclose in patent documentation 1 after will distinguishing is cut apart the technology of distributing to a plurality of users.
Patent documentation 1: No. 2005/0207385 specification of U.S. Patent Application Publication
Non-patent literature 1:3rd Generation Partnership Project, TechnicalSpecification Group Radio Access Network; Physical Layer Aspects forEvolved UTRA (Release7), V1.5.0 2006-5 p67-69
, both just be suitable for cognition wireless and used idle frequency band, also had the problem that the frequency band that can guarantee continuously is narrow, be difficult to seek information transmission high speed.And, attempt concentrating a plurality of these idle frequency bands to come transmission information.But, be difficult to be applicable to and all utilize OFDM (Orthogonal FrequencyDivision Multiplex), take into account the situation that makes carried terminal become dispensing device by power consumption.And, the information that all unexposed this problem of solution of technology of record is used in patent documentation 1 and the non-patent literature 1.
Summary of the invention
The present invention makes in view of this problem, the object of the present invention is to provide a kind of transfer approach, transfer system, dispensing device and receiving system, disturb few service band by in the dominant frequency band of having allocated in advance, setting, the frequency spectrum decentralized configuration that should send sends after to each service band, in receiving system, it is coupled again, can utilizes the clear area to realize high-speed communication efficiently.
Another object of the present invention is to provide a kind of transfer approach, transfer system, dispensing device and receiving system, by setting and the different auxiliary band of having allocated in advance of dominant frequency band, and, in this frequency band, set and disturb few service band, the frequency spectrum decentralized configuration that should send sends after to each service band, in receiving system, it is coupled again, can utilizes the clear area to realize high-speed communication efficiently.
A further object of the present invention is to provide a kind of transfer system etc., the configuration information of each frequency spectrum by setting corresponding service band, according to this configuration information, in dispensing device, carry out assignment configuration, frequency spectrum in receiving system after extraction and the synthetic decentralized configuration can improve the fail safe that sends the information that receives.
Transfer approach of the present invention is a kind of at the transfer approach that sends the digital signal after receiving modulation between dispensing device and receiving system, it is characterized in that possessing: switch process will be converted to the frequency spectrum of frequency band by the digital signal after the described dispensing device modulation; Service band is set step, a plurality of service bands that should use in the dominant frequency band that has utilized described receiving system to be set in to allocate in advance between described dispensing device and receiving system; The band information forwarding step, the information that will be referred to be set by this service band the service band that step set is sent to described dispensing device from described receiving system; Configuration step will be given each service band that has been sent by described band information forwarding step by frequency spectrum decentralized configuration after the conversion of described switch process by described dispensing device; And forwarding step, will comprise by the digital signal that relates to frequency spectrum in the described dominant frequency band of the frequency spectrum after this configuration step decentralized configuration and be sent to described receiving system.
Transfer approach of the present invention is characterised in that to possess: receiving step receives by described forwarding step and is sent to the digital signal that relates to frequency spectrum in the described dominant frequency band of described receiving system; Extraction step utilizes described receiving system to extract from the digital signal that relates to frequency spectrum that is received by described receiving step by described service band and sets frequency spectrum in the service band that step set; With the coupling step, the frequency spectrum that utilizes described receiving system coupling to extract by this extraction step.
Transfer approach of the present invention is a kind of at the transfer approach that sends the digital signal after receiving modulation between dispensing device and receiving system, it is characterized in that possessing: switch process will be converted to the frequency spectrum of frequency band by the digital signal after the described dispensing device modulation; The band setting step, set with described dispensing device and receiving system between the different auxiliary band of dominant frequency band allocated in advance; Service band is set step, utilizes described receiving system to be set in a plurality of service bands of described dominant frequency band and described auxiliary band planted agent use; The band information forwarding step, the information that will be referred to be set by this service band the service band that step set is sent to described dispensing device from described receiving system; Configuration step will be by the frequency spectrum decentralized configuration after the conversion of described switch process to each service band that has been sent by described band information forwarding step by described dispensing device; And forwarding step, will comprise by the described dominant frequency band of the frequency spectrum after this configuration step decentralized configuration and the digital signal that relates to frequency spectrum in the auxiliary band and be sent to described receiving system.
Transfer approach of the present invention is characterised in that to possess: receiving step receives and is sent to the described dominant frequency band of described receiving system and the digital signal that relates to frequency spectrum in the auxiliary band by described forwarding step; Extraction step utilizes described receiving system to extract from the digital signal that relates to frequency spectrum that is received by described receiving step by described service band and sets frequency spectrum in the service band that step set; With the coupling step, the frequency spectrum that utilizes described receiving system coupling to extract by this extraction step.
Transfer system of the present invention is a kind of at the transfer system that sends the digital signal after receiving modulation between dispensing device and receiving system, it is characterized in that possessing: converter section will be converted to the frequency spectrum of frequency band by the digital signal after the described dispensing device modulation; The service band configuration part, a plurality of service bands that the dominant frequency band planted agent who has utilized described receiving system to be set in to allocate in advance between described dispensing device and receiving system uses; The band information sending part, the information that will be referred to the service band set by this service band configuration part is sent to described dispensing device from described receiving system; Be arranged at the configuration portion in the described dispensing device, will give each service band that has sent by described band information sending part by frequency spectrum decentralized configuration after the conversion of described converter section; And sending part, will comprise the digital signal that relates to frequency spectrum of loosing in the described dominant frequency band of the frequency spectrum after the configuration and be sent to described receiving system by described configuration section.
Transfer system of the present invention is characterised in that to possess: acceptance division receives by described sending part and is sent to the digital signal that relates to frequency spectrum in the described dominant frequency band of described receiving system; Be arranged at the extraction unit in the described receiving system, from the digital signal that relates to frequency spectrum that receives by described acceptance division, extract the frequency spectrum in the service band of having set by described service band configuration part; With the coupling part that is arranged in the described receiving system, the frequency spectrum that coupling is extracted by this extraction unit.
Transfer system of the present invention is a kind of at the transfer system that sends the digital signal after receiving modulation between dispensing device and receiving system, it is characterized in that possessing: converter section will be converted to the frequency spectrum of frequency band by the digital signal after the described dispensing device modulation; Band setting portion, set with described dispensing device and receiving system between the different auxiliary band of dominant frequency band allocated in advance; The service band configuration part utilizes described receiving system to be set in a plurality of service bands of described dominant frequency band and described auxiliary band planted agent use; The band information sending part, the information that will be referred to the service band set by this service band configuration part is sent to described dispensing device from described receiving system; Be arranged at the configuration portion in the described dispensing device, will be by the frequency spectrum decentralized configuration of described converter section conversion to each service band that has sent by described band information sending part; And sending part, will comprise by the loose described dominant frequency band of the frequency spectrum after the configuration and the digital signal that relates to frequency spectrum in the auxiliary band of described configuration section and be sent to described receiving system.
Transfer system of the present invention is characterised in that to possess: acceptance division receives and is sent to the described dominant frequency band of described receiving system and the digital signal that relates to frequency spectrum in the auxiliary band by described sending part; Be arranged at the extraction unit in the described receiving system, from the digital signal that relates to frequency spectrum that receives by described acceptance division, extract the frequency spectrum in the service band of having set by described service band configuration part; With the coupling part that is arranged in the described receiving system, the frequency spectrum that coupling is extracted by this extraction unit.
Transfer system of the present invention is characterised in that: possess the configuration information configuration part, setting is to the configuration information of each frequency spectrum of described service band, described configuration portion constitutes: according to the configuration information of having been set by described configuration information configuration part, will give each service band that has been sent by described band information sending part by frequency spectrum decentralized configuration after the described converter section conversion.
Transfer system of the present invention is characterised in that: the constituting of described coupling part: according to the configuration information of having been set by described configuration information configuration part, frequency spectrum that coupling is extracted by described extraction unit.
Transfer system of the present invention is characterised in that: the constituting of described configuration information configuration part: the set basis predetermined rule rearranges the configuration information that each frequency spectrum of described service band is used.
Dispensing device of the present invention is that the digital signal after a kind of will the modulation is sent to outside dispensing device, it is characterized in that possessing: converter section is converted to the digital signal after the modulation frequency spectrum of frequency band; Service band message pick-up portion receives the information relate to a plurality of service bands that use the dominant frequency band planted agent who has allocated in advance from the outside; Configuration portion will give each service band that has been received by described service band message pick-up portion by the frequency spectrum decentralized configuration after the conversion of described converter section; And sending part, will comprise the digital signal that relates to frequency spectrum in the described dominant frequency band by the frequency spectrum after the diffusing configuration of described configuration section and be sent to the outside.
Dispensing device of the present invention is that the digital signal after a kind of will the modulation is sent to outside dispensing device, it is characterized in that possessing: converter section is converted to the digital signal after the modulation frequency spectrum of frequency band; Band setting portion sets and the dominant frequency band different auxiliary band of having allocated in advance; Service band message pick-up portion receives the information that relates at a plurality of service bands of described dominant frequency band and described auxiliary band planted agent use from the outside; Configuration portion will give each service band that is received by described service band message pick-up portion by the frequency spectrum decentralized configuration after the conversion of described converter section; And sending part, will comprise by the described configuration section digital signal that relates to frequency spectrum in the described dominant frequency band of the frequency spectrum after the configuration and the auxiliary band of loosing and be sent to the outside.
Dispensing device of the present invention is characterised in that: possess the configuration information configuration part, setting is to the configuration information of each frequency spectrum of described service band, described configuration portion constitutes: according to the configuration information of having been set by described configuration information configuration part, will give each service band that is received by described service band message pick-up portion by the frequency spectrum decentralized configuration after the described converter section conversion.
Dispensing device of the present invention is characterised in that: the constituting of described configuration information configuration part: the set basis predetermined rule rearranges the configuration information that each frequency spectrum of described service band is used.
Receiving system of the present invention is a kind of receiving system that receives the digital signal after the modulation from the outside, it is characterized in that possessing: the service band configuration part is set in a plurality of service bands that the dominant frequency band planted agent that allocated in advance uses; The band information sending part, the information that will be referred to the service band set by this service band configuration part is sent to the outside; Acceptance division receives the digital signal that relates to frequency spectrum in the described dominant frequency band that sends from the outside; Extraction unit is extracted the frequency spectrum in the service band of having been set by described service band configuration part from the digital signal that relates to frequency spectrum that is received by described acceptance division; And coupling part, the frequency spectrum that coupling is extracted by this extraction unit.
Receiving system of the present invention is characterised in that: constituting of described service band configuration part, the value that relates to communication quality in the described dominant frequency band is satisfied a plurality of service bands of band setting for using of stipulated standard.
Receiving system of the present invention is a kind of receiving system that receives the digital signal after the modulation from the outside, it is characterized in that possessing: band setting portion, set and the different auxiliary band of having allocated in advance of dominant frequency band; The service band configuration part is set in a plurality of service bands that described dominant frequency band and described auxiliary band planted agent use; The band information sending part, the information that will be referred to the service band set by this service band configuration part is sent to the outside; Acceptance division receives from the described dominant frequency band of outside transmission and the digital signal that relates to frequency spectrum in the auxiliary band; Extraction unit is extracted the frequency spectrum in the service band of having been set by described service band configuration part from the digital signal that relates to frequency spectrum that is received by described acceptance division; And coupling part, the frequency spectrum that coupling is extracted by this extraction unit.
Receiving system of the present invention is characterised in that: constituting of described service band configuration part, the value that relates to communication quality in described dominant frequency band and the described auxiliary band is satisfied a plurality of service bands of band setting for using of stipulated standard.
Receiving system of the present invention is characterised in that: described band setting portion constitutes, corresponding to around wireless radio wave environment, set and the different auxiliary band of having allocated in advance of dominant frequency band.
In the present invention, will be converted to the frequency spectrum of frequency band by the digital signal after the dispensing device modulation by converter section.Between dispensing device and receiving system, allocate the dominant frequency band in advance.The service band configuration part utilizes receiving system further setting a plurality of service bands that should use in the dominant frequency band.This service band for example satisfies the value that relates to communication quality in the dominant frequency band a plurality of service bands of band setting for using of stipulated standard.The information that relates to service band that the band information sending part of receiving system will have been set is sent to dispensing device.
The configuration portion of dispensing device will give each service band that has been sent by the band information sending part by the frequency spectrum decentralized configuration after the converter section conversion.Then, will comprise by the configuration section digital signal that relates to frequency spectrum in the dominant frequency band of the frequency spectrum after the configuration of loosing by sending part and be sent to receiving system.The acceptance division of receiving system receives the digital signal that relates to frequency spectrum in the dominant frequency band that has sent, and extracts the frequency spectrum in the service band of having been set by the service band configuration part by extraction unit.At last, owing to the frequency spectrum that extracts by extraction unit by the coupling part coupling,, can seek the high speed of transfer rate so can apply flexibly frequency band neatly.
In the present invention, by converter section the digital signal after modulating in the dispensing device is converted to the frequency spectrum of frequency band.Allocate the dominant frequency band between dispensing device and the receiving system in advance, set the auxiliary band different with this dominant frequency band by band setting portion.Setting based on this band setting portion is for example set corresponding to wireless radio wave environment on every side.The service band configuration part in receiving system in dominant frequency band and the auxiliary band further setting a plurality of service bands that should use.This service band for example satisfies the value that relates to communication quality in dominant frequency band and the auxiliary band a plurality of service bands of band setting for using of stipulated standard.The information that relates to service band that the band information sending part of receiving system will have been set is sent to dispensing device.
The configuration portion of dispensing device will give each service band that has been sent by the band information sending part by the frequency spectrum decentralized configuration after the converter section conversion.Then, will comprise by the configuration section digital signal that relates to frequency spectrum in the dominant frequency band of the frequency spectrum after the configuration and the auxiliary band of loosing by sending part and be sent to receiving system.The acceptance division of receiving system receives the digital signal that relates to frequency spectrum in the dominant frequency band that sent and the auxiliary band, extracts the frequency spectrum in the service band of having been set by the service band configuration part by extraction unit.At last, owing to the frequency spectrum that extracts by extraction unit by the coupling part coupling, thus can apply flexibly frequency band efficiently corresponding to the situation of radio wave, and can seek the high speed of transfer rate.
In the present invention, by the configuration information of configuration information configuration part setting to each frequency spectrum of service band.As long as for example the set basis predetermined rule rearranges the configuration information that each frequency spectrum of service band is used and gets final product.Then, configuration portion will give each service band by the frequency spectrum decentralized configuration after the converter section conversion according to the configuration information of having been set by the configuration information configuration part.Equally, in the coupling part of receiving system, according to the configuration information of having set by the configuration information configuration part, the frequency spectrum that coupling is extracted.Like this, owing to use configuration information, the configuration of changing each frequency spectrum is so the 3rd frequency spectrum that is not easy to be coupled and receives can further improve safe class.
In the present invention, be converted to the frequency spectrum of frequency band, in the service band that the frequency spectrum decentralized configuration after the conversion is set in the dominant frequency band by the digital signal of converter section after with modulation in the dispensing device.And, will comprise by the configuration section digital signal that relates to frequency spectrum in the dominant frequency band of the frequency spectrum after the configuration of loosing by sending part and be sent to receiving system.The acceptance division of receiving system receives the digital signal that relates to frequency spectrum in the dominant frequency band that has sent, and extracts the frequency spectrum in the service band of having been set by the service band configuration part by extraction unit.At last, owing to the frequency spectrum that extracts by extraction unit by the coupling part coupling,, can seek the high speed of transfer rate so can apply flexibly frequency band neatly.
In the present invention, be converted to the frequency spectrum of frequency band, in the service band that the frequency spectrum decentralized configuration after the conversion has been set in dominant frequency band and auxiliary band by the digital signal of converter section after with modulation in the dispensing device.Then, will comprise by the configuration section digital signal that relates to frequency spectrum in the dominant frequency band of the frequency spectrum after the configuration and the auxiliary band of loosing by sending part and be sent to receiving system.The acceptance division of receiving system receives the digital signal that relates to frequency spectrum in the dominant frequency band that sent and the auxiliary band, extracts the frequency spectrum in the service band of having been set by the service band configuration part by extraction unit.At last, owing to the frequency spectrum that extracts by extraction unit by the coupling part coupling, thus can apply flexibly frequency band efficiently corresponding to the situation of radio wave, and can seek the high speed of transfer rate.And, owing to be dispersed to sent-received message behind a plurality of service bands, thus only in dominant frequency band or auxiliary band waveform can not reduce, therefore can improve the safe class in the physical layer.
In the present invention, by the configuration information of configuration information configuration part setting to each frequency spectrum of service band.And the configuration information that configuration portion has set according to the configuration information configuration part will be given each service band by the frequency spectrum decentralized configuration after the converter section conversion.Equally, in the coupling part of receiving system, according to the configuration information of having set by the configuration information configuration part, the frequency spectrum that coupling is extracted.Like this, owing to use configuration information, the configuration of changing each frequency spectrum is so the 3rd frequency spectrum that is not easy to be coupled and receives can further improve safe class.Like this, can realize constructing the high wireless communication system of transmission efficiency etc., the effect that the present invention can obtain.
Description of drawings
Fig. 1 is the summary description figure of expression transfer system.
Fig. 2 is the hardware structure diagram of expression dispensing device.
Fig. 3 is the hardware structure diagram of expression receiving system.
Fig. 4 is the key diagram that notion is handled in decentralized configuration, extraction and the coupling of expression frequency spectrum.
Fig. 5 is the flow chart of steps that the decentralized configuration of the frequency spectrum in the expression configuration portion is handled.
Fig. 6 is the hardware structure diagram of the band setting portion in the expression receiving system.
Fig. 7 is the key diagram of the record layout of expression auxiliary band form.
Fig. 8 is the hardware structure diagram of expression service band configuration part.
Fig. 9 is the flow chart of steps that the setting of expression service band is handled.
Figure 10 is the hardware structure diagram of the dispensing device of expression execution mode 2.
Figure 11 is the hardware structure diagram of the receiving system of expression execution mode 2.
Figure 12 is the key diagram of expression based on the configuration status of the frequency spectrum of configuration information.
Figure 13 is the hardware structure diagram of the dispensing device of expression execution mode 3.
Figure 14 is the hardware structure diagram of the receiving system of expression execution mode 3.
Figure 15 is the key diagram that notion is handled in decentralized configuration, extraction and the coupling of the frequency spectrum of expression execution mode 3.
Among the figure: 1-dispensing device, 2-receiving system, 10-portable telephone, 13-modulator, 14-DFT portion (converter section), 15-configuration portion, 16-band setting portion, 17-service band configuration part, 20-base station, 21-antenna (sending part, acceptance division, the band information sending part), 24-band setting portion, 25-service band configuration part, 26-extraction unit, 27-coupling part, 113-antenna (sending part, acceptance division, service band message pick-up portion), 151-configuration information configuration part, 231-channel estimation portion, 232-subchannel quality information generating unit, 234-CP removal portion, 235-DFT portion, 241-CPU, 242-RAM, 243-timing portion, 245-storage part, 246-auxiliary band form, 248-positional information obtaining section, 251-CPU, 252-band information storage part, 253-channel quality monitoring unit, 254-threshold value storage part, 271-configuration information configuration part, S-transfer system.
Embodiment
Execution mode 1
With reference to accompanying drawing following embodiments of the present invention are described.Fig. 1 is the summary description figure of expression transfer system.S is a transfer system among the figure, comprises as the portable telephone 10 of a communicator that possesses dispensing device and receiving system respectively and as the base station 20 of other communicators and constitute.The user of portable telephone 10 by with base station 20 sent-received messages, can converse with other users' portable telephone 10.Below, explanation sends the mode (uplink) of digital signal from the dispensing device of portable telephone 10 to the receiving system of base station 20, but also can be equally applicable to from the base station mode (downgoing line) that 20 dispensing device sends to the receiving system of portable telephone 10.And, in the present embodiment, illustrated transfer system S is applicable to the mode of communicating by letter with portable telephone 10 and base station 20.But, be not limited thereto communicating by letter etc. between the interior WLAN router of the wireless lan adapter in communicating by letter between the wireless lan adapter that also can be applicable to computer and the WLAN router, the household appliances and home server.
Fig. 2 is the hardware structure diagram of expression dispensing device 1, and Fig. 3 is the hardware structure diagram of expression receiving system 2.At first, dispensing device 1 is described.Dispensing device 1 comprises with the lower part and constitutes: input part 1li; Serial converter section 12; Modulator 13; DFT portion 14; Configuration portion 15; Band setting portion 16; Service band configuration part 17; Pilot signal generating unit 11; Frequency spectrum mapping portion 181,182,183; IDFT (Inverse Discrete Fourier Transform) portion 191,192,193; CP (Cyclic Prefix) appendix 101,102,103; Multiplexed 114; Quadrature modulation portion 110; Frequency inverted portion 112; And antenna 113 etc.
The digital signal that is input to input part 11i is inputed to serial converter section 12.To be input to the digital signal of serial converter section 12, for example when modulation system is QPSK (4 phase phase modulated Quadrature Phase Shift Keying), after changing and cut apart by per 2 Bits Serial/parallel (series connection/parallel connection), input to modulator 13.Modulator 13 for example uses QPSK or 16QAM (quadrature amplitude modulation Quadrature Amplitude Modulation) etc.Digital signal after the modulation is inputed to DFT portion 14 as converter section, carry out the T/F conversion, export the frequency spectrum of frequency band to configuration portion 15.
Band setting portion 16 sets and the different auxiliary band of pre-assigned dominant frequency band between dispensing device 1 and receiving system 2.The auxiliary band A that the ratio dominant frequency band frequency band of being set by the band setting portion 24 of receiving system 2 is low and than the high auxiliary band B of dominant frequency band frequency band in the present embodiment, also has been described except that pre-assigned dominant frequency band.Band setting portion 16 is by antenna 113, receives from the base station information of dominant frequency band, auxiliary band A and auxiliary band B that the band setting portion 24 of 20 receiving system 2 sends.And, send as long as the information of dominant frequency band, auxiliary band A and auxiliary band B is multiplexed in after the dispensing device 1 of base station 20 is sent to other digital signals of receiving system 2 (descending) of portable telephone 10.For example, the signal of dominant frequency band and auxiliary band information is carried out frame structure (frame) change, the part of frame structure is defined as control signal transmits usefulness, send after being multiplexed in digital signal as general data.Band setting portion 16 with the information stores of the dominant frequency band, auxiliary band A and the auxiliary band B that receive in the not shown memory of inside, in order to set frequency band, to the information of configuration portion 15 output dominant frequency bands, auxiliary band A and auxiliary band B.In addition, band setting portion 16 also can pass through antenna 113, by i-mode communication network and internets such as (registered trade marks), receive the information of the dominant frequency band, auxiliary band A and the auxiliary band B that set by the band setting portion 24 or the not shown supervisory computer of receiving system 2.The concrete band setting of auxiliary band A and B utilizes the time band to wait to set and disturbs few frequency band as described later, the information that 20 dispensing device 1 sends about the frequency band that utilizes from the base station.
Service band configuration part 17 dominant frequency band, auxiliary band A and auxiliary band b separately in also set the frequency band be used to send reception.For example, when auxiliary band A was assigned as 100MHz～150MHz, service band was selected in the frequency band that distributes, and for example, is 110MHz～120MHz and 125MHz～140MHz etc.In the setting of this service band, the part that the communication quality that the service band configuration part of receiving system 2 25 monitors in each frequency band, Bian Yineng are guaranteed communication quality is as service band and make it dynamically to change, and the limit is sent to dispensing device 1 with this information.The service band configuration part 17 of dispensing device 1 receives the information about the service band of being set by the service band configuration part 25 of receiving system 2 by the antenna 113 as service band message pick-up portion.Service band configuration part 17 with this content stores in the not shown memory of inside, in order to set service band, to the information of configuration portion 15 outputs about service band.And, send as long as will be multiplexed in about the information of service band after the dispensing device 1 of base station 20 is sent to other digital signals of receiving system 2 (descending) of portable telephone 10.For example, the signal of frame structure service band information is defined as control signal with the part of frame structure and transmits usefulness, sends after being multiplexed in the digital signal as general data.And the back is described in detail the service band configuration part 25 of receiving system 2.
Configuration portion 15 is with frequency spectrum decentralized configuration each service band in dominant frequency band, auxiliary band A and auxiliary band B.Fig. 4 is the conceptual illustration figure that decentralized configuration, extraction and the coupling of expression frequency spectrum handled.Fig. 4 (a) expression is from the frequency spectrum of DFT portion 14 to 15 inputs of configuration portion, and X direction is represented frequency.In addition, illustrated in this example that each spectrum number of handling unit is 64.Configuration portion 15 is divided into frequency spectrum auxiliary band A, dominant frequency band, reaches auxiliary band B according to the information from 16 outputs of band setting portion.Fig. 4 (b) represents the state for the frequency spectrum that continuous frequency spectrum decentralized configuration is cut apart to auxiliary band A, dominant frequency band and auxiliary band B.For example, cut apart 10 frequency spectrums to auxiliary band A respectively, cut apart 22 frequency spectrums, cut apart 32 frequency spectrums to auxiliary band B to the dominant frequency band.Fig. 4 (c) is illustrated respectively in the frequency band that can utilize between dispensing device 1 and the receiving system 2, is auxiliary band A, dominant frequency band and auxiliary band B, owing to will be used for other transfer systems by the frequency band that hacures surround, so do not utilize.
Configuration portion 15 is according to the information from service band configuration part 17, also with the frequency spectrum decentralized configuration in a plurality of service bands that auxiliary band A, dominant frequency band and auxiliary band B planted agent use.Fig. 4 (d) is the service band key diagram in expression auxiliary band A, dominant frequency band and the auxiliary band B, do not apply hatched hollow space and represent service band, with the frequency spectrum decentralized configuration in these service bands.In this transfer system S, utilize the part that surrounds by hacures of these service bands and Fig. 4 (d).For example, 4 frequency spectrums of configuration among the service band a1 in auxiliary band A dispose 6 frequency spectrums in service band a2 respectively.And 16 frequency spectrums of configuration in the service band in the dominant frequency band 1 dispose 6 frequency spectrums in service band 2 respectively.And 32 frequency spectrums of configuration among the service band b in auxiliary band B.Like this, with in the service band of 64 frequency spectrum decentralized configuration in auxiliary band A, dominant frequency band and auxiliary band B.Afterwards, the interior frequency spectrum of auxiliary band A, dominant frequency band and auxiliary band B that will contain these 64 frequency spectrums carries out frequency-time conversion, is sent to receiving system 2 as the digital signal that relates to frequency spectrum.In addition, in the present embodiment, established 2 auxiliary band A and B, but its quantity is not limited thereto.
In the extraction unit 26 of receiving system 2, service band information according to 25 outputs from the service band configuration part, extract the frequency spectrum that is disposed at service band a1, service band a2, service band 1, service band 2 and service band b respectively, shown in Fig. 4 (e), by coupling part 27 this 64 frequency spectrums that are coupled once more.
Fig. 5 is the flow chart of the decentralized configuration treatment step of the frequency spectrum in the expression configuration portion 15.At first, configuration portion 15 obtains from the auxiliary band information (step S51) of band setting portion 16 outputs.At this moment, also obtain the dominant frequency that is stored in memory (not shown) breath of taking a message simultaneously.And the dominant frequency band also can by rewriting the content of memory, suitably change this frequency band according to the indication from band setting portion 16.Configuration portion 15 obtains the information (step S52) of the service band in each auxiliary band from service band configuration part 17.
Configuration portion 15 calculates the total frequency band values (step S53) of the service band of setting in dominant frequency band and each auxiliary band according to the service band information that obtains.This is the aggregate value of service band a1 width in the described example, service band a2 width, service band 1 width, service band 2 width and service band b width.Here, establishing the total frequency band values is s.Configuration portion 15 calculates the occupation rate (step S54) to total frequency band values s of each service band.For example, the occupation rate of service band a1 is to add up to frequency band values s to remove the value of service band a1 width.
Configuration portion 15 calculates the occupation rate of each whole service bands.And 15 pairs of frequency spectrum sums of configuration portion multiply by occupation rate, calculate the spectrum number (step S55) that is dispersed to each service band.For example, owing to be 50% o'clock in the occupation rate to adding up to frequency band values s that calculates service band b width, the total frequency spectrum number is 64, so the spectrum number that the service band b of auxiliary band B is disperseed is 32.15 pairs of each service bands of configuration portion carry out the computing of step S55, press the frequency spectrum quantity (step S56) that the frequency order configuration is calculated each service band.
To export frequency spectrum mapping portion 181 to by the frequency spectrum of the dominant frequency band of configuration portion 15 decentralized configuration respectively, frequency spectrum that will auxiliary frequency spectrum A exports frequency spectrum mapping portion 182 to, exports the frequency spectrum of auxiliary band B to frequency spectrum mapping portion 183.Frequency spectrum mapping portion 181 in 183 in service band the frequency spectrum of decentralized configuration, also carry out the mapping of other frequency spectrums outside the service band.Export frequency spectrum, the frequency spectrum of auxiliary band A and the frequency spectrum of auxiliary band B of the dominant frequency band after the mapping to IDFT portion 191 to 193 respectively.
IDFT portion 191 to 193 carries out frequency-time conversion with the frequency spectrum of dominant frequency band, auxiliary band A and auxiliary band B, and the digital signal that relates to frequency spectrum after will changing the time exports CP appendix 101 to 103 respectively to.In order to prevent intersymbol interference in the CP appendix 101 to 103, the part of reproduction digital signal sticks on protection interval (guardinterval) partly (the first head part of digital signal) with the digital signal after duplicating, and makes the digital signal expansion.The digital signal that to expand in CP appendix 101 to 103 exports multiplexed 114 to.Pilot signal generating unit 11 exports pilot signals such as scattered pilot signal and continuous pilot signal to multiplexed 114.By multiplexed 114 suitable this pilot signal of inserting, the channel estimation portion 231 that is used for receiving system 2 waits infers the transfer path characteristic.To export quadrature modulation portion 110 by the digital signal of multiplexed 114 multiplexed pilot signal to.
Quadrature modulation portion 110 and converts the digital signal quadrature modulation of output to the intermediate frequency frequency band.Export the digital signal after the quadrature modulation to frequency inverted portion 112.Frequency inverted portion 112 converts the frequency band of the digital signal after the quadrature modulation to wireless frequency bands from middle frequency band, offers as the antenna 113 that receives sending part.Thus, the digital signal that relates to frequency spectrum after the decentralized configuration is sent to receiving system 2.
Below, the structure of receiving system 2 is described.Receiving system 2 comprises with the lower part and constitutes: antenna 21; Quadrature demodulation portion 22; RF frequency band separated part 221; Multiplexed separated part 222; Main circuit 23; Auxiliary circuit 23A; Auxiliary circuit 23B; Extraction unit 26; Band setting portion 24; Service band configuration part 25; Coupling part 27 and demodulation section 28 etc.To utilize quadrature demodulation portion 22 to be demodulated into the digital signal of base band from the IF frequency band by the digital signal that receives as the antenna 21 that sends acceptance division.Band setting portion 24 will be used to send reception band information, be that the information of dominant frequency band, auxiliary band A and auxiliary band B exports RF frequency band separated part 221 to.RF frequency band separated part 221 is carried out the separation of digital information according to the output from band setting portion 24 to each frequency band, and, in multiplexed separated part 222, pilot signal is separated from digital signal.Digital signal with the dominant frequency band that separates exports main circuit 23 to respectively, exports the digital signal of auxiliary band A to auxiliary circuit 23A, exports the digital signal of auxiliary band B to auxiliary circuit 23B.
Main circuit 23, auxiliary circuit 23A and auxiliary circuit 23B have identical structure, comprise with the lower part to constitute: channel estimation portion 231, subchannel quality information generating unit 232, CP remove portion 234 and DFT portion 235.Export the pilot signal in the digital signal of dominant frequency band to channel estimation portion 231, export in addition data-signal to CP removal portion 234.Channel estimation portion 231 is according to pilot signal, the characteristic of estimation data signal.And, the value that subchannel quality information generating unit 232 generates about the communication quality in the frequency band, and export extraction unit 26 to.And, in the present embodiment, except that main circuit 23,2 auxiliary circuit 23A and auxiliary circuit 23B also are set, but are not limited thereto, as long as from a plurality of auxiliary circuits of preparing corresponding to the auxiliary band number that utilizes, use the auxiliary circuit of auxiliary band quantity.
Data-signal in the digital signal is removed after portion 234 removes the protection compartment by CP, exports DFT portion 235 to.In DFT portion 235, carry out the T/F conversion, export the frequency spectrum after the frequency inverted to extraction unit 26.Like this, the frequency spectrum that will contain the dominant frequency band of service band from main circuit 23 exports extraction unit 26 to respectively, the frequency spectrum that will contain the auxiliary band A of service band from auxiliary circuit 23A exports extraction unit 26 to, and the frequency spectrum that will contain the auxiliary band B of service band from auxiliary circuit 23B exports extraction unit 26 to.
Band setting portion 24 exports the information of dominant frequency band, auxiliary band A and auxiliary band B to extraction unit 26, and service band configuration part 25 also exports service band information to extraction unit 26.Frequency spectrum in the service band that extraction unit 26 extracts the frequency spectrum that is present in the service band in the dominant frequency band respectively, be present in auxiliary band A and be present in the frequency spectrum of the service band of auxiliary band B exports coupling part 27 to.Coupling part 27 couplings are from the frequency spectrum of extraction unit 26 outputs.That is,, carry out processing, the frequency spectrum that has conformability with the demodulation section 28 that constitutes with back segment with allocated frequency band coupling frequency spectrum by from the frequency spectrum that is present in the low frequency band of service band order to the frequency spectrum that is present in high frequency band.In described example, with the transmission band that is suitable for demodulation section 28, by service band a1, service band a2, service band 1, service band 2, and the order coupling of service band B be present in the frequency spectrum of each frequency band.Export the frequency spectrum after the coupling to demodulation section 28.Demodulation section 28 carries out demodulation according to the modulation system that when modulation uses, and obtains relating to the digital signal of frequency spectrum of being coupled.
Fig. 6 is the hardware block diagram of the band setting portion 24 in the expression receiving system 2.As long as the frequency band of setting in the cognition wireless is set corresponding to wireless radio wave environment around the receiving system 2.Wireless radio wave environment for example in time or change in location around the receiving system 2.Band setting portion 24 comprises with the lower part and constitutes: CPU (Central Processing Unit) 241; RAM (Random Access Memory) 242; Timing portion 243; Storage part 245 and positional information obtaining section 248 etc.CPU241 is connected with each one of hardware of band setting portion 24 by bus 247, and each one of control hardware, simultaneously, according to the control program that is stored in storage part 245, carries out each software processes.
RAM242 and storage part 245 are the semiconductor memories that can specify and read and write arbitrary address.Timing portion 243 exports current time to CPU241.Storage auxiliary band form 246 in memory 245.Fig. 7 is the record layout key diagram of expression auxiliary band form 246.Auxiliary band form 246 comprises time band field and auxiliary band field and constitutes.In time band field memory time band, 13:00～15:00 etc. for example.And, in the auxiliary band field, except that the dominant frequency band, also be with the auxiliary band of memory by using corresponding to the time.
For example, in the time of 13:00～15:00 band, except that the dominant frequency band, also utilize auxiliary band aHz～bHz and auxiliary band cHz～dHz.And, in the time of 15:00～17:00 band, except that the dominant frequency band, only utilize auxiliary band dHz～eHz.In addition, the frequency band about the dominant frequency band is stored in storage part 245.The memory contents of auxiliary band form 246, and the memory contents of dominant frequency band also can be by the operator corresponding to situation, never illustrated input part suitably changes, or never illustrated supervisory computer receives frequency band, and the memory contents of auxiliary band form of new dominant frequency band, rewritten by the CPU241 indication.In addition, in the present embodiment, utilize the time band to set auxiliary band, but also can utilize month day a suitable change dominant frequency band and an auxiliary band.For example, as long as enlarge the auxiliary band of utilizing at weekend.
CPU241 monitors that from the current time of timing portion 243 outputs based on current time, retrieval auxiliary band form 246 is read the auxiliary band corresponding to the time band of current time.And CPU241 reads the dominant frequency band that is stored in storage part 245.CPU241 exports the dominant frequency band and the auxiliary band information of reading to extraction unit 26 and RF frequency band separated part 221.And the band setting portion 24 of receiving system 2 passes through antenna 21 with the dominant frequency band and the auxiliary band information of reading, and is sent to the band setting portion 16 of dispensing device 1.In addition, in the present embodiment, the mode that the band setting portion 24 in 20 the receiving system 2 sends about the information of dominant frequency band and auxiliary band to the band setting portion 16 of dispensing device 1 has been described from the base station.But, the information that the band setting portion 24 in the receiving system 2 in also can never illustrated management server computer sends about dominant frequency band and auxiliary band to the band setting portion 16 of dispensing device 1.
In addition, the band setting portion 24 of receiving system 2 also can determine auxiliary band corresponding to the position of receiving system 2.For example, also can be as the receiving system 2 of the portable telephone 10 of moving body corresponding to the use location of portable telephone 10, the suitable frequency band that utilizes of change.As shown in Figure 6, band setting portion 24 possesses GPS position information obtaining sections 248 such as (Global Positioning System).Positional information obtaining section 248 obtains the positional information (latitude and longitude) of receiving system 2, exports positional information to CPU241.In storage part 245, identical with described auxiliary band form 246, corresponding to the auxiliary band of positional information memory by using.CPU241 also can read corresponding auxiliary band from storage part 245 according to the positional information from 248 outputs of positional information obtaining section, and this auxiliary band is exported with the dominant frequency band.For example, as long as when receiving system 2 is positioned at the centre of the city district,,, on the contrary, when receiving system 2 is positioned at the countryside,, can set auxiliary band because wireless radio wave environment improves relatively so set auxiliary band less because wireless radio wave environment is bad relatively more.
Fig. 8 is the hardware block diagram of expression service band configuration part 25.Service band configuration part 25 comprises with the lower part and constitutes: CPU251; Channel quality monitoring unit 253; Band information storage part 252; And threshold value storage part 254 etc.CPU251 is connected with each one of hardware of service band configuration part 25 by bus 255, and when controlling it, according to the control program that is stored in not shown memory, carries out each software processes.
Band information storage part 252 and threshold value storage part 254 are the semiconductor memories that can specify the read-write arbitrary address.Channel quality monitoring unit 253 monitors dominant frequency band, auxiliary band A and auxiliary band B communication quality separately according to the communication quality of 232 outputs of the subchannel quality information generating unit from Fig. 3.As value, be equivalent to from the interference level of other wireless networks (for example, according to 802.11 WLAN) etc. about this communication quality.Storage is to the threshold value about the value of communication quality in threshold value storage part 254.For example, in threshold value storage part 254, be stored as permission interference level-80dBm etc.This is because the interference level that is received by receiving system 2 during for example for-100dmBm, for allowing below the interference level, so be judged as other correspondents that do not use this frequency band.In addition, for about the value of communication quality the time, becoming bit error rate=10 in the receiving sensitivity of establishing receiving system 2 -5Required received power be-when 110dBm is following, judge that communication quality is good, is set at service band.And, establish SN (Signal-to-Noise) in the receiving system 2 than for about the value of communication quality, establish 10db and be permission SN ratio as threshold value, establish SN in the receiving system 2 than being that frequency band more than the 10db is a service band.In addition, below, in order to be easy to describe, if the value about communication quality is an interference level, the benchmark of establishing judgement is the permission interference level-80dm that is stored in threshold value storage part 254, is when allowing interference level following at interference level, communication quality is good, is set at service band.
CPU251 for example obtains the interference level about the value of communication quality separately as dominant frequency band, auxiliary band A and auxiliary band B by every 5ms from channel quality monitoring unit 253.Then, CPU251 reads the threshold value that is stored in threshold value storage part 254, for example allows whether the size of the interference level that interference level-80dBm, judgement obtain is to allow below interference level-80dBm.And the extraction interference level is-the following frequency band of 80dBm.The frequency band of this extraction be judged as communication quality be constant more than, be set in dominant frequency band, auxiliary band A or the auxiliary band B service band separately, be stored in band information storage part 252.
Fig. 9 is the setting treatment step flow chart of expression service band.Channel quality monitoring unit 253 obtained one by one from the value about communication quality (step S91) of subchannel quality information generating unit 232 outputs in the moment of regulation.In addition, also can detect as mensuration by not shown transducer about the interference level of the value of communication quality.The value that 253 storages of channel quality monitoring unit obtain (step S92) about communication quality.CPU251 judged whether through the stipulated time (for example 10ms) (step S93).Be judged as (among the step S93, not) when not passing through the stipulated time at CPU251, move to step S91, repeat above the processing.In addition, be judged as when the stipulated time (among the step S93, being), obtain about dominant frequency band, and the value (step S94) of auxiliary band communication quality from channel quality monitoring unit 253 at CPU251.About the value of this communication quality as mentioned above, for example be interference level.
CPU251 reads the threshold value that is stored in threshold value storage part 254 and (for example allows interference level-80dBm) (step S95).Then, CPU251 is from the frequency band that is present in dominant frequency band and auxiliary band, and the value of extracting about communication quality is below the threshold value, and particularly, the interference level of obtaining is the frequency band that allows interference level following, is set at service band (step S96).CPU251 is stored in band information storage part 252 (step S97) with service band.Like this, CPU251 will be that frequency band below the defined threshold is made as dominant frequency band, auxiliary band A and auxiliary band B service band separately about the value of communication quality.The service band information that relates to is sent to the service band configuration part 17 of dispensing device 1 by the antenna 21 as the band information sending part except that exporting extraction unit 26 to.The service band configuration part 17 of dispensing device 1 receives service band information by the antenna 113 as service band message pick-up portion.In addition, because of different constantly, the service band in dominant frequency band, auxiliary band A and the auxiliary band B does not exist on communication quality sometimes.For example, among auxiliary band A and the B interference based on other wireless networks sometimes big, the service band in auxiliary band A and the B does not exist.This situation is only used the service band in the dominant frequency band.
Execution mode 2
Execution mode 2 and regular according to the rules configuration information, the mode of decentralized configuration frequency spectrum is relevant.Figure 10 is the hardware block diagram of the dispensing device 1 of expression execution mode 2.Figure 11 is the hardware block diagram of the receiving system 2 of expression execution mode 2.Dispensing device 1 also possesses configuration information configuration part 151 except that the structure of execution mode 1, this configuration information configuration part 151 is connected in configuration portion 15.And receiving system 2 also possesses configuration information configuration part 271 except that the structure of execution mode 1, and this configuration information configuration part 271 is connected in coupling part 27.Configuration information configuration part 151 in the dispensing device 1 is stored in inner memory (not shown) with configuration information.This configuration information relates to rearrange the information of the regulation rule that the frequency spectrum of service band is used, and for example correspondence adds 10 to the arrangement of the frequency spectrum of tackling the service band configuration respectively, or rearranges the first half and the latter half of rule of grading of frequency spectrum.The configuration information configuration part 151 of this rale store dispensing device 1 and the configuration information configuration part 271 of receiving system 2 common configuration information (rule) separately.
Below, illustrate configuration information be assumed to the arrangement of the frequency spectrum of reply service band configuration stagger 10 regular the time example.Figure 12 is the configuration status key diagram of expression based on the frequency spectrum of configuration information.The processing unit that establishing is put in the portion 15 is 64 frequency spectrums, and I (the 1)～I that is arranged in that establishes frequency spectrum describes between (64).As implementing to illustrate in the mode 1, according to from the information of dominant frequency band, auxiliary band A and the auxiliary band B of band setting portion 16, and from the service band information of service band configuration part 17, in the service band a1 of auxiliary band A, dispose I (1)～I (4), in service band a2, dispose I (5)～I (10).And, in the service band 1 of dominant frequency band, dispose I (11)～I (26), in service band 2, dispose I (27)～I (32).And in the service band b of auxiliary band B, dispose I (33)～I (64).
The configuration information that is stored in the configuration information configuration part 151 is read by configuration portion 15, according to this configuration information, rearranges the processing to the arrangement of the frequency spectrum of service band.Configuration information be relative service band with frequency band arrange stagger respectively 10 regular the time, in the service band a1 of auxiliary band A, dispose I (11)～I (14), in service band a2, dispose I (15)～I (20).In addition, in service band 1, dispose I (21)～I (36), in service band 2, dispose I (37)～I (42).And, in the service band b of auxiliary band B, dispose I (43)～I (64) and I (1)～I (10).Configuration portion 15 sends the digital signal that relates to this frequency spectrum to receiving system 2 on the basis according to this configuration information decentralized configuration frequency spectrum.
As shown in figure 11, the receiving system 2 of execution mode 2 has been reset configuration information configuration part 271.Can communicate by letter with the distribution information configuration part 151 of dispensing device 1 by antenna 113 or antenna 21 in configuration information configuration part 271, store identical configuration information.That is, in described example since in the fixed frequency spectrum arrangement to service band of dispensing device 1 side mark for advancing 10, so carry out the frequency spectrum arrangement of service band return 10 processing in receiving system 2 sides.In addition, fail safe in order to ensure the content of this configuration information configuration part 151 and configuration information configuration part 271, preferably by during each regulation, the never illustrated input part change of operator configuration information, perhaps, never illustrated supervisory computer is rewritten the configuration information in the memory that is stored in configuration information configuration part 151 and the configuration information configuration part 271.
Configuration information configuration part 271 exports configuration information to coupling part 27.Coupling part 27 rearranges the frequency spectrum arrangement in each service band that extracts from extraction unit 26.That is, when described example, carry out frequency spectrum arrangement return 10 processing.From the service band a1 of extraction unit 26 output I (11)～I (14) as auxiliary band A, I (15)～I (20) is as service band a2 in output.And output I (21)～I (36) is as the service band 1 of dominant frequency band, and I (37)～I (42) is as service band 2 in output.And output I (43)～I (64) and I (1)～I (10) are as the service band b of auxiliary band B.Coupling part 27 carries out the frequency spectrum that is present in each service band return 10 processing.That is, in the service band a1 of auxiliary band A, return I (1)～I (4), in service band a2, return I (5)～I (10).And, in the service band 1 of dominant frequency band, return I (11)～I (26), in service band 2, return I (27)～I (32).And in the service band b of auxiliary band B, return I (33)～I (64).And last, coupling part 27 is coupled these frequency spectrums in the suitable frequency band that demodulation section 28 uses.That is, carry out by from the processing of the frequency spectrum that is present in the low frequency band of service band to the order coupling frequency spectrum of the frequency spectrum that is present in high frequency band.In described example, by service band a1, service band a2, service band 1, service band 2, and the order of service band b frequency spectrum I (1)～I (64) of being coupled and existing in the frequency band separately.Export the frequency spectrum after the coupling to demodulation section 28.Like this, can be by rearranging frequency spectrum by configuration information configuration part 151 and configuration information configuration part 271, the fail safe when increasing substantially communication.
Present embodiment 2 is a structure as above, and other structures and effect are identical with execution mode 1, so to the additional identical reference number of the part of correspondence, omit its detailed description.
Execution mode 3
Execution mode 1 and 2 has illustrated the mode of using the service band of dominant frequency band and auxiliary band, but execution mode 3 relates to the mode of using the service band in the dominant frequency band.Figure 13 is the hardware block diagram of the dispensing device 1 of expression execution mode 3.In addition, Figure 14 is the hardware block diagram of the receiving system 2 of expression execution mode 3.
Because the dispensing device 1 of execution mode 3 only uses the dominant frequency band, so between configuration portion 15 and multiplexed 114, frequency spectrum mapping portion 181, IDFT portion 191 and the CP appendix 101 that relates to the dominant frequency band is set.Configuration portion 15 is with the service band of frequency spectrum decentralized configuration in the dominant frequency band of being cut apart in advance by band setting portion 16.The service band configuration part 25 of receiving system 2 is a service band with the band setting that satisfies stipulated standard about the value of communication quality in the dominant frequency band, this information is exported to the service band configuration part 17 of dispensing device 1.
Configuration portion 15 is with the service band of frequency spectrum decentralized configuration in 17 outputs from the service band configuration part.The digital signal that will contain decentralized configuration frequency spectrum in the dominant frequency band of the frequency spectrum of service band is sent to receiving system 2 by antenna 113.As shown in figure 14, for receiving system 2 also only carries out demodulation process in the dominant frequency band, the main circuit 23 that relates to the dominant frequency band only is set between multiplexed separated part 222 and extraction unit 26.Extraction unit 26 is extracted the frequency spectrum that is present in this service band according to the service band information of 25 outputs from the service band configuration part, exports coupling part 27 to.The frequency spectrum that coupling part 27 is coupled in the service band of extraction unit 26 outputs exports demodulation section 28 to.
Figure 15 is the conceptual illustration figure that decentralized configuration, extraction and the coupling of the frequency spectrum of expression execution mode 3 handled.Figure 15 (a) represents to input to from DFT portion 14 frequency spectrum of configuration portion 15, and X direction is represented frequency.Illustrated also that in this example each spectrum number of handling unit is 64.Figure 15 (b) expression for continuous frequency spectrum decentralized configuration to the dominant frequency band service band and the frequency spectrum state cut apart.As long as this distribution of cutting apart is as the criterion by the processing of narrating among Fig. 5.In addition, also can described in enforcement mode 2, use configuration information, rearrange the processing of frequency spectrum.
Particularly, configuration portion 15 calculates the summation s of each service band width of 17 outputs from the service band configuration part.Then, by removing each service band width, calculate the ratio of the frequency spectrum that is dispensed to each service band width with the summation s that calculates.After the ratio of each service band be multiply by with the summation 64 of frequency spectrum in configuration portion 15, decision was dispersed to the spectrum number of each service band.
Figure 15 (c) is illustrated in pre-assigned dominant frequency band between dispensing device 1 and the receiving system 2.Configuration portion 15 is according to the information from service band configuration part 17, with the frequency band decentralized configuration in a plurality of service bands that use dominant frequency band planted agent.Figure 15 (d) is a key diagram of representing the service band 1 to 5 in the dominant frequency band respectively, do not apply hatched hollow space and represent service band, with the frequency spectrum decentralized configuration in these service bands.Utilize the part of these service bands 1 to 5 and Figure 15 (d) by the hacures encirclement by this transfer system S.For example, 4 frequency spectrums of configuration in service band 1 dispose 6 frequency spectrums in service band 2 respectively, 16 frequency spectrums of configuration in service band 3, and 6 frequency spectrums of configuration in service band 4, and, 32 frequency spectrums of configuration in service band 5.Like this, in each service band in the dominant frequency band decentralized configuration 64 frequency spectrums, the frequency spectrum that will comprise in the dominant frequency band of frequency spectrum of decentralized configuration carries out frequency-time conversion, is sent to receiving system 2 as digital signal.
In the proposition portion 26 of receiving system 2, according to the service band information of 25 outputs, extract the frequency spectrum be disposed at the service band 1 to 5 in the dominant frequency band respectively, shown in Figure 15 (e), by coupling part 27 this 64 frequency spectrums that are coupled once more from the service band configuration part.
Present embodiment 3 is a structure as above, because other structures and effect are identical with execution mode 1 and 2, so to the additional identical reference number of the part of correspondence, omit its detailed description.

Claims (20)

1. a transfer approach is sending the digital signal that receives after modulating between dispensing device and receiving system, it is characterized in that possessing:
Switch process will be converted to the frequency spectrum of frequency band by the digital signal after the described dispensing device modulation;
Service band is set step, a plurality of service bands that should use in the dominant frequency band that has utilized described receiving system to be set in to allocate in advance between described dispensing device and receiving system;
The band information forwarding step, the information that will be referred to be set by this service band the service band that step set is sent to described dispensing device from described receiving system;
Configuration step will be given each service band that has been sent by described band information forwarding step by frequency spectrum decentralized configuration after the conversion of described switch process by described dispensing device; With
Forwarding step will comprise by the digital signal that relates to frequency spectrum in the described dominant frequency band of the frequency spectrum after this configuration step decentralized configuration and be sent to described receiving system.
2. transfer approach according to claim 1 is characterized in that possessing:
Receiving step receives by described forwarding step and is sent to the digital signal that relates to frequency spectrum in the described dominant frequency band of described receiving system;
Extraction step utilizes described receiving system to extract from the digital signal that relates to frequency spectrum that is received by described receiving step by described service band and sets frequency spectrum in the service band that step set; With
The coupling step, the frequency spectrum that utilizes described receiving system coupling to extract by this extraction step.
3. a transfer approach is sending the digital signal that receives after modulating between dispensing device and receiving system, it is characterized in that possessing:
Switch process will be converted to the frequency spectrum of frequency band by the digital signal after the described dispensing device modulation;
The band setting step, set with described dispensing device and receiving system between the different auxiliary band of dominant frequency band allocated in advance;
Service band is set step, utilizes described receiving system to be set in a plurality of service bands of described dominant frequency band and described auxiliary band planted agent use;
The band information forwarding step, the information that will be referred to be set by this service band the service band that step set is sent to described dispensing device from described receiving system;
Configuration step will be by the frequency spectrum decentralized configuration after the conversion of described switch process to each service band that has been sent by described band information forwarding step by described dispensing device; With
Forwarding step will comprise by the described dominant frequency band of the frequency spectrum after this configuration step decentralized configuration and the digital signal that relates to frequency spectrum in the auxiliary band and be sent to described receiving system.
4. transfer approach according to claim 3 is characterized in that possessing:
Receiving step receives and is sent to the described dominant frequency band of described receiving system and the digital signal that relates to frequency spectrum in the auxiliary band by described forwarding step;
Extraction step utilizes described receiving system to extract from the digital signal that relates to frequency spectrum that is received by described receiving step by described service band and sets frequency spectrum in the service band that step set; With
The coupling step, the frequency spectrum that utilizes described receiving system coupling to extract by this extraction step.
5. a transfer system is sending the digital signal that receives after modulating between dispensing device and receiving system, it is characterized in that possessing:
Converter section will be converted to the frequency spectrum of frequency band by the digital signal after the described dispensing device modulation;
The service band configuration part, a plurality of service bands that the dominant frequency band planted agent who has utilized described receiving system to be set in to allocate in advance between described dispensing device and receiving system uses;
The band information sending part, the information that will be referred to the service band set by this service band configuration part is sent to described dispensing device from described receiving system;
Configuration portion is arranged in the described dispensing device, will give each service band that has been sent by described band information sending part by frequency spectrum decentralized configuration after the conversion of described converter section; With
Sending part will comprise the digital signal that relates to frequency spectrum of being loose in the described dominant frequency band of the frequency spectrum after the configuration by described configuration section and be sent to described receiving system.
6. transfer system according to claim 5 is characterized in that possessing:
Acceptance division receives by described sending part and is sent to the digital signal that relates to frequency spectrum in the described dominant frequency band of described receiving system;
Extraction unit is arranged in the described receiving system, extracts the frequency spectrum in the service band of having been set by described service band configuration part from the digital signal that relates to frequency spectrum that is received by described acceptance division; With
Coupling part is arranged in the described receiving system, the frequency spectrum that coupling is extracted by this extraction unit.
7. a transfer system is sending the digital signal that receives after modulating between dispensing device and receiving system, it is characterized in that possessing:
Converter section will be converted to the frequency spectrum of frequency band by the digital signal after the described dispensing device modulation;
Band setting portion, set with described dispensing device and receiving system between the different auxiliary band of dominant frequency band allocated in advance;
The service band configuration part utilizes described receiving system to be set in a plurality of service bands of described dominant frequency band and described auxiliary band planted agent use;
The band information sending part, the information that will be referred to the service band set by this service band configuration part is sent to described dispensing device from described receiving system;
Configuration portion is arranged in the described dispensing device, will be by the frequency spectrum decentralized configuration after the conversion of described converter section to each service band that has been sent by described band information sending part; With
Sending part will comprise by the loose described dominant frequency band of the frequency spectrum after the configuration and the digital signal that relates to frequency spectrum in the auxiliary band of described configuration section and be sent to described receiving system.
8. transfer system according to claim 7 is characterized in that possessing:
Acceptance division receives and is sent to the described dominant frequency band of described receiving system and the digital signal that relates to frequency spectrum in the auxiliary band by described sending part;
Extraction unit is arranged in the described receiving system, extracts the frequency spectrum in the service band of having been set by described service band configuration part from the digital signal that relates to frequency spectrum that is received by described acceptance division; With
Coupling part is arranged in the described receiving system, the frequency spectrum that coupling is extracted by this extraction unit.
9. according to each described transfer system of claim 5～8, it is characterized in that:
Possess the configuration information configuration part, set configuration information each frequency spectrum of described service band,
Described configuration portion constitutes: according to the configuration information of having been set by described configuration information configuration part, will give each service band that has been sent by described band information sending part by frequency spectrum decentralized configuration after the described converter section conversion.
10. transfer system according to claim 9 is characterized in that:
Constituting of described coupling part: according to the configuration information of having set by described configuration information configuration part, the frequency spectrum that coupling is extracted by described extraction unit.
11., it is characterized in that according to claim 9 or 10 described transfer systems:
Constituting of described configuration information configuration part: the set basis predetermined rule rearranges the configuration information that each frequency spectrum of described service band is used.
12. a dispensing device is sent to the outside with the digital signal after the modulation, it is characterized in that possessing:
Converter section is converted to the frequency spectrum of frequency band with the digital signal after the modulation;
Service band message pick-up portion receives the information relate to a plurality of service bands that use the dominant frequency band planted agent who has allocated in advance from the outside;
Configuration portion will give each service band that has been received by described service band message pick-up portion by the frequency spectrum decentralized configuration after the conversion of described converter section; With
Sending part will comprise the digital signal that relates to frequency spectrum in the described dominant frequency band by the frequency spectrum after the diffusing configuration of described configuration section and be sent to the outside.
13. a dispensing device is sent to the outside with the digital signal after the modulation, it is characterized in that possessing:
Converter section is converted to the frequency spectrum of frequency band with the digital signal after the modulation;
Band setting portion sets and the dominant frequency band different auxiliary band of having allocated in advance;
Service band message pick-up portion receives the information that relates at a plurality of service bands of described dominant frequency band and described auxiliary band planted agent use from the outside;
Configuration portion will give each service band that is received by described service band message pick-up portion by the frequency spectrum decentralized configuration after the conversion of described converter section; With
Sending part will comprise by the described configuration section digital signal that relates to frequency spectrum in the described dominant frequency band of the frequency spectrum after the configuration and the auxiliary band of loosing and be sent to the outside.
14., it is characterized in that according to claim 12 or 13 described dispensing devices:
Possess the configuration information configuration part, set configuration information each frequency spectrum of described service band,
Described configuration portion constitutes: according to the configuration information of having been set by described configuration information configuration part, will give each service band that is received by described service band message pick-up portion by the frequency spectrum decentralized configuration after the described converter section conversion.
15. dispensing device according to claim 14 is characterized in that:
Constituting of described configuration information configuration part: the set basis predetermined rule rearranges the configuration information that each frequency spectrum of described service band is used.
16. a receiving system receives the digital signal after the modulation from the outside, it is characterized in that possessing:
The service band configuration part is set in a plurality of service bands that the dominant frequency band planted agent that allocated in advance uses;
The band information sending part, the information that will be referred to the service band set by this service band configuration part is sent to the outside;
Acceptance division receives the digital signal that relates to frequency spectrum in the described dominant frequency band that sends from the outside;
Extraction unit is extracted the frequency spectrum in the service band of having been set by described service band configuration part from the digital signal that relates to frequency spectrum that is received by described acceptance division; With
Coupling part, the frequency spectrum that coupling is extracted by this extraction unit.
17. receiving system according to claim 16 is characterized in that:
Constituting of described service band configuration part: a plurality of service bands of band setting that the value that relates to communication quality in the described dominant frequency band satisfied stipulated standard for using.
18. a receiving system receives the digital signal after the modulation from the outside, it is characterized in that possessing:
Band setting portion sets and the dominant frequency band different auxiliary band of having allocated in advance;
The service band configuration part is set in a plurality of service bands that described dominant frequency band and described auxiliary band planted agent use;
The band information sending part, the information that will be referred to the service band set by this service band configuration part is sent to the outside;
Acceptance division receives from the described dominant frequency band of outside transmission and the digital signal that relates to frequency spectrum in the auxiliary band;
Extraction unit is extracted the frequency spectrum in the service band of having been set by described service band configuration part from the digital signal that relates to frequency spectrum that is received by described acceptance division; With
Coupling part, the frequency spectrum that coupling is extracted by this extraction unit.
19. receiving system according to claim 18 is characterized in that:
Constituting of described service band configuration part: a plurality of service bands of band setting that the value that relates to communication quality in described dominant frequency band and the described auxiliary band satisfied stipulated standard for using.
20., it is characterized in that according to claim 18 or 19 described receiving systems:
Described band setting portion constitutes: corresponding to around wireless radio wave environment, set and the dominant frequency band different auxiliary band of having allocated in advance.
CN200780032994.3A 2006-07-10 2007-06-06 Transfer approach, transfer system, dispensing device and receiving system Expired - Fee Related CN101512943B (en)

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