WO2008038380A1 - Appareil de communication sans fil - Google Patents

Appareil de communication sans fil Download PDF

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Publication number
WO2008038380A1
WO2008038380A1 PCT/JP2006/319351 JP2006319351W WO2008038380A1 WO 2008038380 A1 WO2008038380 A1 WO 2008038380A1 JP 2006319351 W JP2006319351 W JP 2006319351W WO 2008038380 A1 WO2008038380 A1 WO 2008038380A1
Authority
WO
WIPO (PCT)
Prior art keywords
radio
wireless
communication apparatus
wireless communication
antennas
Prior art date
Application number
PCT/JP2006/319351
Other languages
English (en)
Japanese (ja)
Inventor
Kazuhiko Ikeda
Takashi Enoki
Original Assignee
Panasonic Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corporation filed Critical Panasonic Corporation
Priority to PCT/JP2006/319351 priority Critical patent/WO2008038380A1/fr
Priority to JP2008536260A priority patent/JPWO2008038380A1/ja
Publication of WO2008038380A1 publication Critical patent/WO2008038380A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band

Definitions

  • the present invention relates to a wireless communication device such as a mobile phone that supports multi-mode and multi-band.
  • this type of wireless communication apparatus 10 includes a transmitter 11, a receiver 12, an antenna sharing unit 13, an antenna 14, and the like.
  • a transmitter 11 converts an audio signal or a data signal that is transmission information into a transmission signal, and outputs the converted transmission signal to the antenna sharing unit 13.
  • the antenna sharing unit 13 transmits the transmission signal input from the transmitter 11 through the antenna 14 as a transmission wave of a predetermined frequency band.
  • the receiver 12 converts a reception signal of a predetermined frequency band received via the antenna 14 and the antenna sharing unit 13 into reception information such as an audio signal and a data signal and outputs the reception information.
  • cellular multiband such as 3GPP specifications, 3GPP-LTE specifications, and G SMZEDGE are becoming standard.
  • this type of wireless communication device is required to be multi-mode, such as compatible with international roaming.
  • this type of wireless communication device includes various wireless resources such as a wireless LAN (WLAN), Bluetooth (BT), digital television (DTV), GPS, and RF tag.
  • WLAN wireless LAN
  • BT Bluetooth
  • DTV digital television
  • RF tag RF tag
  • Patent Document 1 Japanese Patent Laid-Open No. 2005-229539
  • the conventional wireless communication device has a multi-band 'multi-mode cellular system, a variable frequency band for simultaneously operating various terminal applications using wireless such as wireless LAN and digital television. Increasing the frequency will require 1 broadband and wide tunable.
  • An object of the present invention is to provide a wireless communication apparatus that can simultaneously operate various terminal applications using wireless communication with a simple configuration.
  • the wireless communication apparatus of the present invention has a higher frequency band than the first wireless system and the first wireless system for a plurality of antennas and signals transmitted and received via the plurality of antennas.
  • a second radio unit that shares radio processing of the third radio system having a high bandwidth.
  • the radio circuit is shared, it is possible to reduce the size. In addition, multiple different wireless systems and diversity can be operated simultaneously. Furthermore, since the frequency band that can be handled by one radio unit can be narrowed, the basic characteristics are improved even with a small current.
  • FIG. 1 is a block diagram showing a configuration of a receiver of a radio communication apparatus according to Embodiment 1 of the present invention.
  • FIG. 2 corresponds to each radio system of the radio communication apparatus according to Embodiment 1 of the present invention. Frequency Figure showing numbers
  • FIG. 3 is a block diagram showing a configuration example of a receiving unit of the receiver of the wireless communication apparatus according to the first embodiment of the present invention.
  • FIG. 4 is a block diagram showing a configuration of a receiver of a wireless communication apparatus according to Embodiment 2 of the present invention.
  • FIG. 5 is a block diagram showing a configuration of a receiver of a wireless communication apparatus according to Embodiment 3 of the present invention.
  • FIG. 6 is a block diagram showing a configuration of a receiver of a radio communication apparatus according to Embodiment 4 of the present invention.
  • FIG. 7 is a block diagram showing a schematic configuration of the radio communication apparatus.
  • the present invention is characterized in that the corresponding frequency bands of a plurality of radio units overlap, but have different bands, and the overlapping frequency regions can be utilized for diversity communication and MIMO communication.
  • FIG. 1 is a block diagram showing the configuration of the receiver of the wireless communication apparatus according to Embodiment 1 of the present invention.
  • FIG. 2 is a diagram showing frequencies corresponding to each radio system of the radio communication apparatus according to Embodiment 1 of the present invention.
  • the receiver 100 of this example includes antennas 101a, 101b, 101c, lOld, an antenna sharing unit 102, a first receiving unit 103, a second receiving unit 104, and a third receiving unit 105.
  • Signal processor Signal processor
  • antennas 101a, 101b, 101c, and lOld are connected to antenna sharing section 102 and receive transmission waves in frequency bands corresponding to the antennas.
  • the antenna sharing unit 102 is a first receiving unit corresponding to a radio system that operates the received signals of each band received by the antennas 101a, 101b, 101c, and lOld based on the control signal of the control unit 107. 103, selectively output to the second receiving unit 104 and the third receiving unit 105.
  • the first receiving unit 103 uses the wireless system A and the like such as digital television broadcast and cellular communication among the received signals input from the antenna sharing unit 102. And a reception circuit that supports f0 to f3 for receiving signals in the frequency band corresponding to wireless system B.
  • the second receiving unit 104 receives a received signal in a frequency band corresponding to the wireless system B and the wireless system C such as cellular communication and Bluetooth among the received signals input from the antenna sharing unit 102. Yes F2-f5 receiver circuit is provided.
  • the third receiving unit 105 receives a received signal in a frequency band corresponding to the wireless system C and the wireless system D such as Bluetooth and wireless LAN among the received signals input from the antenna sharing unit 102. Yes F4-f7 receiver circuit is provided.
  • FIG. 3 shows a configuration example of the receiving circuit of the first receiving unit 103, the second receiving unit 104, and the third receiving unit 105.
  • the receiving circuits of the receiving units 103, 104, and 105 include an RF filter 110, a low noise amplifier (LNA) 111, a local oscillator 112, a quadrature demodulator 113, and a low pass filter (LP F).
  • LNA low noise amplifier
  • LP F low pass filter
  • 114a, 114b, AD ⁇ 1 (ADC) 115a, 115b.
  • an RF (band) filter 110 passes only a received signal in a frequency band corresponding to a preset wireless system among the received signals input from the antenna sharing unit 102, and the low noise amplifier 111. Output to.
  • the low noise amplifier 111 amplifies the received signal in the frequency band corresponding to the preset wireless system input from the RF filter 110 and outputs the amplified signal to the quadrature demodulator 113.
  • the quadrature demodulator 113 performs quadrature demodulation and quadrature demodulation of the signal output from the low noise amplifier 111 based on a predetermined oscillation frequency signal provided from the local oscillator 112 according to the reception frequency.
  • the component signal and Q component signal are output to the low-pass filters 114a and 114b, respectively.
  • the low-pass filters 114a and 114b control the bandwidths of the I component signal and the Q component signal input from the quadrature demodulator 113, and convert the I component signal and the Q component signal of a desired bandwidth to the AD converter 115a, Output to 115b respectively.
  • the AD converters 115a and 115b perform AZD conversion on the desired bandwidth I component signal and Q component signal input from the low-pass filters 114a and 114b, and convert the I component signal and Q component signal into digital signals.
  • the signal is output to the signal processing unit 106 (see FIG. 1).
  • the signal processing unit 106 Based on the I component signal and the Q component signal input from the AD converters 115 a and 115 b of each receiving circuit and the control signal input from the control unit 107, the signal processing unit 106 receives each receiving unit 103. , 104, 105 Processing to operate the wireless system corresponding to the reception frequency.
  • the signal processing unit 106 views the DTV in the first receiving unit 103,
  • the control unit 107 controls processing operations of the antenna sharing unit 102 and the signal processing unit 106 in accordance with the radio system operated by the receiver 100 of this example.
  • the corresponding frequency bands of the first receiving unit 103, the second receiving unit 104, and the third receiving unit 105 overlap each other. It is set!
  • the receiver 100 of the present example includes a plurality of receiving units 103, 104, and 105 that have different corresponding frequency bands that are set so that some of the frequency bands overlap each other.
  • a plurality of wireless systems using different frequency bands can be received simultaneously.
  • the corresponding frequency of the first receiving unit 103 is set to 470 MHz to 2.
  • DTV (470 to 800MHz), 3G (800MHz, 2GHz), WLAN and BT (2.4GHz), 3GLTE (2.6GHz), WLAN (5GHz)
  • 3G 800MHz, 2GHz
  • WLAN and BT 2.4GHz
  • 3GLTE 2.6GHz
  • WLAN 5GHz
  • first receiver 103 views DTV, and diversity communication or MIMO operation is performed in the frequency band where second receiver 104 and third receiver 105 overlap. It becomes possible to do. It should be noted that the overlapping band between the receiving units 103, 104, and 105 is preferably a frequency band of about one octave.
  • the frequency band supported by one of the receiving units 103, 104, and 105 can be narrowed, so that the current of a radio circuit such as LNA or MIX can be reduced, and NF, distortion
  • the basic performance such as can be optimized, and the current consumption, circuit scale, and wireless characteristics are improved. can do.
  • FIG. 4 is a block diagram showing the configuration of the receiver of the radio communication apparatus according to Embodiment 2 of the present invention.
  • variable bandwidth LPF an LPF corresponding to an entire radio system having a variable bandwidth of, for example, 10 kHz to 10 MHz is used as the variable bandwidth LPF, the circuit scale and current of the LPF increase.
  • the band limiting variable filters 122, 123, 124 are provided, and the band limiting variable filters 122, 123, 124 are switched by the switch units 121, 125.
  • each band limiting variable filter 122, 123, 124 is connected to each receiving unit 103, 10
  • 105 reception modes for example, an LPF with a bandwidth variable width of 10 kHz to l MHz is used as the bandwidth limiting variable filter 122, and a bandwidth variable width of 100 kHz to 1 is used as the bandwidth limiting variable filters 123, 124.
  • an LPF with a bandwidth variable width of 10 kHz to l MHz is used as the bandwidth limiting variable filter 122, and a bandwidth variable width of 100 kHz to 1 is used as the bandwidth limiting variable filters 123, 124.
  • the switch unit 121 includes each receiving unit 103, 104, 105 and each band limiting variable filter 122, 1
  • the switch unit 125 includes each band limiting variable filter 122, 123, 124 and a signal processing unit (AD
  • each band limiting variable filter 122, 123 is configured to filter each band limiting variable filter 122, 123.
  • receiver 120 of this example since the reception performance deterioration due to the interference wave can be suppressed by the band limitation by each band limitation variable filter 122, 123, 124, the basic characteristics can be stabilized. .
  • FIG. 5 is a block diagram showing the configuration of the receiver of the wireless communication apparatus according to Embodiment 3 of the present invention.
  • the receiver 130 of this example is provided in each of the receiving units 103, 104, and 105.
  • Corresponding antennas 131, 132, 133 dedicated to each receiving unit are provided.
  • the antenna 131 is configured to receive only radio waves in the same frequency band as the corresponding frequency band of the first receiving unit 103.
  • the antenna 132 is configured to receive only a radio wave having the same frequency band as the corresponding frequency band of the second receiving unit 104.
  • the antenna 133 is configured to receive only a radio wave having the same frequency band as the corresponding frequency band of the third receiving unit 105.
  • the receiver 130 of this example includes the bands of the antennas 131, 132, 133 and the receiving units 1
  • the number of antennas can be reduced, and radio waves in the optimum band can be received without using a high-band antenna.
  • FIG. 6 is a block diagram showing the configuration of the receiver of the radio communication apparatus according to Embodiment 4 of the present invention.
  • the receiver 140 of this example includes a plurality of RF filters 141a, 141b, 141c having different passbands between the antenna sharing unit 102 and the receiving units 103, 104, 105. , 141d, and these RF filters 14la, 141b, 141c, 14Id are switched by the RF switch 142.
  • the RF switch unit 142 selects which of the RF filters 141a, 141b, 141c, 141d to use according to the wireless system to be operated, and sets the antennas 10la, 101b. , 101c, lOld and the connection between each receiver 103, 104, 105 are switched.
  • the RF switch unit 142 switches the connection between the antennas 101a, 101b, 101c, 101d and the receiving units 103, 104, 105, whereby each receiving unit 103 , 104 and 105, the received signal can have high signal quality (jamming wave ratio) optimum for the receiving system.
  • the present invention can also be configured in the transmitter in the same manner as the receiver.
  • the radio communication apparatus has frequency bands that overlap each other in each of the receiving units 103, 104, and 105, and has different frequencies depending on each radio system. Configure to receive (send) several bands.
  • the radio communication apparatus can transmit and receive a plurality of modes or bands at the same time, and the frequency bands corresponding to the plurality of radio systems are different and overlapped. Or, it has multiple radio circuits that can transmit (receive z transmit).
  • the frequency that can be supported by one wireless unit can be narrowed, so that the current of the wireless circuit such as LNA and MIX can be reduced, and NF, distortion
  • the current consumption, circuit scale, and wireless characteristics can be improved, and diversity communication and MIMO operation can be performed in overlapping frequency bands.
  • the wireless communication apparatus can be miniaturized because it shares a wireless circuit, can simultaneously operate a plurality of different wireless systems and diversity, and can be handled by a single wireless unit. Since the frequency band can be narrowed and the basic characteristics are good even with a small amount of current, it is useful as a wireless communication device such as a mobile phone that supports multi-mode and multi-band.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un appareil de communication sans fil dans lequel une structure simple est utilisée pour faire fonctionner simultanément divers types d'applications de terminal qui utilisent la radio. L'appareil de communication sans fil (100) comporte une pluralité d'antennes (101a, 101b, 101c, 101d) ; une première partie de réception (103) qui partage, en tant que première partie de radio, le traitement radio d'un système sans fil A et d'un système sans fil B ayant une bande de fréquence supérieure au système sans fil A pour des signaux de bandes de fréquence f0-f3 transmis/reçus par l'intermédiaire de la pluralité d'antennes ; une seconde partie de réception (104) qui partage, en tant que seconde partie de radio, le traitement radio du système sans fil B et un système sans fil C ayant une bande de fréquence supérieure au système sans fil B pour des signaux de bandes de fréquence f2-f5 transmis/reçus par l'intermédiaire de la pluralité d'antennes ; et une troisième partie de réception (105) qui partage, en tant que troisième partie de radio, le traitement radio du système sans fil C et un système sans fil D ayant une bande de fréquence supérieure au système sans fil C pour des signaux de bandes de fréquence f4-f7 transmis/reçus à partir de la pluralité d'antennes.
PCT/JP2006/319351 2006-09-28 2006-09-28 Appareil de communication sans fil WO2008038380A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2006/319351 WO2008038380A1 (fr) 2006-09-28 2006-09-28 Appareil de communication sans fil
JP2008536260A JPWO2008038380A1 (ja) 2006-09-28 2006-09-28 無線通信装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/319351 WO2008038380A1 (fr) 2006-09-28 2006-09-28 Appareil de communication sans fil

Publications (1)

Publication Number Publication Date
WO2008038380A1 true WO2008038380A1 (fr) 2008-04-03

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Application Number Title Priority Date Filing Date
PCT/JP2006/319351 WO2008038380A1 (fr) 2006-09-28 2006-09-28 Appareil de communication sans fil

Country Status (2)

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JP (1) JPWO2008038380A1 (fr)
WO (1) WO2008038380A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012034049A (ja) * 2010-07-28 2012-02-16 Ntt Docomo Inc 携帯無線装置
JP2013504924A (ja) * 2009-09-21 2013-02-07 ケーエムダブリュ・インコーポレーテッド 無線通信基地局の共用化装置
JP5165056B2 (ja) * 2008-05-16 2013-03-21 三菱電機株式会社 通信装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003204284A (ja) * 2001-10-30 2003-07-18 Matsushita Electric Ind Co Ltd 高周波スイッチ、および高周波無線機器
JP2004289437A (ja) * 2003-03-20 2004-10-14 Sony Corp 通信装置
JP2005027287A (ja) * 2003-06-12 2005-01-27 Hitachi Metals Ltd 高周波スイッチモジュール及びその制御方法
JP2005073086A (ja) * 2003-08-26 2005-03-17 Kyocera Corp スイッチモジュールおよびこれを用いた電子機器
JP2005123740A (ja) * 2003-10-14 2005-05-12 Fujitsu Media Device Kk 高周波スイッチモジュール

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5069391B2 (ja) * 2001-07-13 2012-11-07 富士通モバイルコミュニケーションズ株式会社 信号復調回路

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003204284A (ja) * 2001-10-30 2003-07-18 Matsushita Electric Ind Co Ltd 高周波スイッチ、および高周波無線機器
JP2004289437A (ja) * 2003-03-20 2004-10-14 Sony Corp 通信装置
JP2005027287A (ja) * 2003-06-12 2005-01-27 Hitachi Metals Ltd 高周波スイッチモジュール及びその制御方法
JP2005073086A (ja) * 2003-08-26 2005-03-17 Kyocera Corp スイッチモジュールおよびこれを用いた電子機器
JP2005123740A (ja) * 2003-10-14 2005-05-12 Fujitsu Media Device Kk 高周波スイッチモジュール

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5165056B2 (ja) * 2008-05-16 2013-03-21 三菱電機株式会社 通信装置
JP2013504924A (ja) * 2009-09-21 2013-02-07 ケーエムダブリュ・インコーポレーテッド 無線通信基地局の共用化装置
JP2012034049A (ja) * 2010-07-28 2012-02-16 Ntt Docomo Inc 携帯無線装置

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