WO2014175156A1 - Terminal de communication mobile et procede de commande de terminal de communication mobile - Google Patents

Terminal de communication mobile et procede de commande de terminal de communication mobile Download PDF

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Publication number
WO2014175156A1
WO2014175156A1 PCT/JP2014/060912 JP2014060912W WO2014175156A1 WO 2014175156 A1 WO2014175156 A1 WO 2014175156A1 JP 2014060912 W JP2014060912 W JP 2014060912W WO 2014175156 A1 WO2014175156 A1 WO 2014175156A1
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WO
WIPO (PCT)
Prior art keywords
band
state
setting information
mobile communication
communication terminal
Prior art date
Application number
PCT/JP2014/060912
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English (en)
Japanese (ja)
Inventor
桂 安藤
大將 梅田
望 座間
Original Assignee
株式会社Ｎｔｔドコモ
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 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Publication of WO2014175156A1 publication Critical patent/WO2014175156A1/fr

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    • 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
    • H04B1/0053—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 common antenna for more than one band
    • H04B1/0057—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 common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band

Definitions

  • the present invention relates to a mobile communication terminal capable of simultaneously communicating in a plurality of bands and a control method thereof.
  • Carrier aggregation is known as a wireless communication method for performing communication using two bands at the same time in order to widen the communication band (see Non-Patent Document 1). Further, Patent Document 1 is known as a technique related to a receiver having a filter circuit that can be commonly used in wireless communication systems having different reception bands.
  • Mobile communication terminals capable of carrier aggregation also perform communication using a communication method that selects one of the two bands, so both the state of simultaneous communication in two bands and the state of selecting one band for communication are supported.
  • the technique of Patent Document 1 is not a technique for a communication system that uses two bands simultaneously, but is a technique related to a communication system that selects one of two bands.
  • FIG. 1 shows a functional configuration of a mobile communication terminal that performs carrier aggregation in band A and band B when the conventional technology is used.
  • FIG. 2 is a diagram showing the filter characteristics of the multiplexer of the mobile communication terminal of FIG.
  • the mobile communication terminal 700 includes an antenna 110, a band A transmission / reception circuit 170-A that transmits / receives a band A signal, a band B transmission / reception circuit 170-B that transmits / receives a band B signal, and a band B signal that transmits a band A signal. And a baseband signal generator 150 that generates a baseband signal.
  • the multiplexer 760 includes a first filter 761 that blocks the band B and a second filter 762 that blocks the band A signal and transmits the band B signal.
  • the transmission / reception circuits 170-A and 170-B include duplexers 120-A and 120-B, power amplifiers 131-A and 131-B, low noise amplifiers 132-A and 132-B, and orthogonal modulation units 141-A and 141-. B, orthogonal demodulation units 142-A and 142-B, D / A conversion units 143-A and 143-B, and A / D conversion units 144-A and 144-B.
  • F761 indicates the frequency characteristic of the first filter 761
  • F762 indicates the frequency characteristic of the second filter 762.
  • An object of the present invention is to provide a mobile communication terminal that can appropriately cope with both a state where two bands are simultaneously communicated and a state where one band is selected and communicated.
  • the mobile communication terminal of the present invention includes an antenna, a band A transmission / reception circuit that transmits / receives a band A signal, a band B transmission / reception circuit that transmits / receives a band B signal, a variable multiplexer, and a recording unit that records a plurality of setting information of variable multiplexers, A filter control unit is provided.
  • the variable multiplexer sends a band A signal from the antenna side to the band A transmission / reception circuit side, a band B signal from the antenna side to the band B transmission / reception circuit side, and a band A signal from the band A transmission / reception circuit side.
  • the band B signal from the band B transmission / reception circuit side is combined and sent to the antenna side.
  • the filter control unit controls the variable multiplexer according to the setting information.
  • the plurality of setting information includes setting information corresponding to a state in which communication is simultaneously performed in both band A and band B, setting information corresponding to a state in which communication is performed only in band A and a standby state in band A, and only band B And the setting information corresponding to the standby state in band B.
  • the filter control unit sets the variable multiplexer based on setting information corresponding to each state.
  • the frequency characteristic of the multiplexer is variable, and the setting corresponding to the state of the mobile communication terminal can be performed. Therefore, even when there is a characteristic that must be compromised when communicating in two bands simultaneously, there is no need to compromise when communicating in only one band. Therefore, the mobile communication terminal of the present invention can appropriately cope with both the state of communicating simultaneously in two bands and the state of selecting one band for communication.
  • the figure which shows the characteristic of the filter of the multiplexer of the mobile communication terminal of FIG. 1 is a diagram illustrating a functional configuration example of a mobile communication terminal according to a first embodiment.
  • FIG. 3 is a diagram illustrating characteristics of the variable multiplexer of the mobile communication terminal according to the first embodiment.
  • the figure which shows the frequency band of the bands 1-K The figure which shows the function structural example of the mobile communication terminal of this modification.
  • FIG. 3 shows a functional configuration example of the mobile communication terminal of the first embodiment.
  • FIG. 4 is a diagram illustrating characteristics of the variable multiplexer of the mobile communication terminal according to the first embodiment.
  • FIG. 5 is a diagram illustrating an example of a control flow of the variable multiplexer of the mobile communication terminal according to the first embodiment.
  • the mobile communication terminal 100 includes an antenna 110, a band A transmission / reception circuit 170-A for transmitting / receiving a band A signal, a band B transmission / reception circuit 170-B for transmitting / receiving a band B signal, a variable multiplexer 160, and a plurality of variable multiplexer setting information. Recording unit 190, filter control unit 165, and baseband signal generator 150.
  • the antenna 110, the band A transmission / reception circuit 170-A, the band B transmission / reception circuit 170-B, and the baseband signal generator are the same as those of the mobile communication terminal 700.
  • the variable multiplexer 160 sends a band A signal from the antenna 110 side to the band A transmission / reception circuit 170-A side, and sends a band B signal from the antenna 110 side to the band B transmission / reception circuit 170-B side.
  • the band A signal from the circuit 170-A side and the band B signal from the band B transmission / reception circuit 170-B side are combined and sent to the antenna 110 side.
  • the variable multiplexer 160 may include a first variable filter 161 that transmits a band A signal and blocks a band B signal, and a second variable filter 162 that blocks a band A signal and transmits a band B signal. Good.
  • the filter control unit 165 controls the variable multiplexer 160 according to the setting information.
  • the plurality of setting information includes setting information corresponding to a state in which communication is simultaneously performed in both band A and band B, setting information corresponding to a state in which communication is performed only in band A and a standby state in band A, and only band B And the setting information corresponding to the standby state in band B.
  • the filter control unit 165 sets the variable multiplexer 160 based on setting information corresponding to each state.
  • the setting information in which the characteristic of the first variable filter 161 is F761 and the characteristic of the second variable filter 162 is F762 is set as the setting information corresponding to the state of simultaneous communication in both the band A and the band B.
  • the setting information in which the characteristic of the first variable filter 161 is F161A and the characteristic of the second variable filter 162 is F162A is the setting information corresponding to the state of communication using only band A and the standby state of band A.
  • setting information such that the characteristic of the first variable filter 161 is F161B and the characteristic of the second variable filter 162 is F162B includes setting information corresponding to the state of communication only in the band B and the standby state in the band B. To do.
  • the transmission loss is sacrificed to some extent ( Isolation between the two bands must be ensured (compromising the characteristics of the passage loss).
  • the characteristic of the first variable filter 161 can be F161A
  • the characteristic of the second variable filter 162 can be F162A
  • the characteristic of the first variable filter 161 can be F161B
  • the characteristic of the second variable filter 162 can be F162B. Therefore, when communication is performed using only one band, a low passage loss can be set. Therefore, even if there is a characteristic that must be compromised when communicating in two bands simultaneously, there is no need to compromise when communicating in only one band.
  • the mobile communication terminal 100 When the mobile communication terminal 100 is turned on, the mobile communication terminal 100 reads the setting information from the recording unit 190 according to the internal cell search order and sets the variable multiplexer 160. Then, the mobile communication terminal 100 acquires a band instruction (information) to be used when waiting from the network side (S181). The filter control unit 165 reads the setting information corresponding to the standby state in the band designated by this instruction from the recording unit 190, and sets the variable multiplexer 160 (S161).
  • step S191 In the standby state, the presence / absence of transmission / reception or data transmission / reception is confirmed (S191).
  • step S191 When step S191 is No (when there is no outgoing / incoming call or data transmission / reception), it is confirmed whether there is a new instruction from the network side (S182). If step S182 is No, the process returns to step S191.
  • step S182 If step S182 is Yes, it returns to step S161, reads the setting information corresponding to the standby state in the band designated by the new instruction from the recording unit 190, and sets the variable multiplexer 160 (S161).
  • step S191 When there is an incoming / outgoing call or data transmission / reception), it is confirmed whether there is a new instruction from the network side (S183).
  • step S183 When step S183 is Yes, the setting information corresponding to the state which communicates only in the band designated by the new instruction is read from the recording unit 190, and the variable multiplexer 160 is set (S162).
  • step S183 When step S183 is No, the setting information corresponding to the state of communicating only in the band used in the standby state is read from the recording unit 190, and the variable multiplexer 160 is set (S163).
  • step S192 When the communication is in progress, it is confirmed whether the communication is completed (S192). When step S192 is Yes (when communication is completed), the process returns to step S181 (returns to the standby state). When Step S192 is No (when communication is continued), it is confirmed whether there is a new instruction from the network side (S184). If step S184 is No, the process returns to step S192. When step S184 is Yes, the band to be used is determined according to the new instruction, the variable multiplexer is controlled (S164), and the process returns to step S192.
  • the filter control unit 165 reads setting information corresponding to the state in which communication is performed simultaneously in both band A and band B from the recording unit 190, and the variable multiplexer 160. Set. Further, when the communication is performed using only the band B, the filter control unit 165 reads setting information corresponding to the state of performing communication using only the band B from the recording unit 190 and sets the variable multiplexer 160. Such a processing flow may be repeated while the mobile communication terminal 100 is powered on.
  • the frequency characteristic of the multiplexer is variable, and the setting corresponding to the state of the mobile communication terminal can be performed. Therefore, even when there is a characteristic that must be compromised when communicating in two bands simultaneously, there is no need to compromise when communicating in only one band. Therefore, the mobile communication terminal of the present invention can appropriately cope with both the state of communicating simultaneously in two bands and the state of selecting one band for communication.
  • FIG. 6 is a diagram illustrating frequency bands of bands 1 to K. However, K is an integer of 3 or more. I and j are integers of 1 to K, and i ⁇ j. As shown in FIG. 6, the bands are referred to as bands 1 to K from the lowest frequency.
  • FIG. 7 is a functional configuration example of the mobile communication terminal according to this modification. The processing flow relating to the control of the multiplexer is the same as that in FIG.
  • the mobile communication terminal 300 is different from the mobile communication terminal 100 in that it includes a switch 367 for selecting two bands and includes K transmission / reception circuits 170-1 to 170-K for bands 1 to K. . Also, the setting information recorded in the recording unit 390 and the number of bands corresponding to the baseband signal generator 350 are different.
  • the recording unit 390 sets setting information corresponding to a state in which communication is simultaneously performed in both bands of the combination for all combinations for selecting two of the K bands, and only the band for the K bands. The communication state and setting information corresponding to the standby state in the band are recorded.
  • the switch 367 connects the transmission / reception circuit 170-i and the transmission / reception circuit 170-j to the variable multiplexer 160.
  • the filter control unit 165 controls the variable multiplexer 160 with the band i as the band A of the first embodiment and the band j as the band B of the first embodiment. That is, the filter control unit 165 sets the variable multiplexer 160 based on setting information corresponding to a state in which communication is simultaneously performed in both bands i and j.
  • the mobile communication terminal 100 Since the mobile communication terminal 100 is premised on two bands, according to instructions from the network side, a determination of a band to be awaited, a determination of a band for communication in a single band, a state of communication in a single band, and simultaneous communication in two bands The decision to switch the status to be performed Since the mobile communication terminal 300 is premised on K bands, information on which band to use is necessary even when communicating simultaneously in two bands. Therefore, the mobile communication terminal 300 determines a standby band, a single band communication band, two simultaneous band determinations, a single band communication state, and two bands according to an instruction from the network side. It decides to switch the state of communication at the same time. For this reason, the processing flow of FIG.
  • the program describing the processing contents can be recorded on a computer-readable recording medium.
  • a computer-readable recording medium any recording medium such as a magnetic recording device, an optical disk, a magneto-optical recording medium, and a semiconductor memory may be used.
  • this program is distributed by selling, transferring, or lending a portable recording medium such as a DVD or CD-ROM in which the program is recorded. Furthermore, the program may be distributed by storing the program in a storage device of the server computer and transferring the program from the server computer to another computer via a network.
  • a computer that executes such a program first stores a program recorded on a portable recording medium or a program transferred from a server computer in its own storage device.
  • the computer reads a program stored in its own recording medium and executes a process according to the read program.
  • the computer may directly read the program from a portable recording medium and execute processing according to the program, and the program is transferred from the server computer to the computer.
  • the processing according to the received program may be executed sequentially.
  • the program is not transferred from the server computer to the computer, and the above-described processing is executed by a so-called ASP (Application Service Provider) type service that realizes a processing function only by an execution instruction and result acquisition. It is good.
  • the program in this embodiment includes information that is used for processing by an electronic computer and that conforms to the program (data that is not a direct command to the computer but has a property that defines the processing of the computer).
  • the present apparatus is configured by executing a predetermined program on a computer.
  • a predetermined program on a computer.
  • at least a part of these processing contents may be realized by hardware.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

L'invention porte sur un terminal de communication mobile qui peut utiliser un état de réalisation de manière simultanée de communications par utilisation de deux bandes et un état de réalisation d'une communication par sélection d'une bande pour obtenir une adaptation appropriée. Un terminal de communication mobile de la présente invention comprend : une antenne ; un circuit d'émission/réception de bande A ; un circuit d'émission/réception de bande B ; un multiplexeur variable ; une unité d'enregistrement qui enregistre une pluralité d'éléments d'informations de réglage pour le multiplexeur variable ; et une unité de commande de filtre. L'unité de commande de filtre commande le multiplexeur variable selon les informations de réglage. La pluralité d'éléments d'informations de réglage comprennent un élément d'informations de réglage correspondant à l'état de réalisation de manière simultanée de communications par utilisation des deux bandes A et B, un élément d'informations de réglage correspondant à l'état de réalisation d'une communication par utilisation seulement de la bande A et à un état de veille en utilisant la bande A, et un élément d'informations de réglage correspondant à l'état de réalisation d'une communication par utilisation de seulement la bande B et à un état de veille en utilisant la bande B. L'unité de commande de filtre règle le multiplexeur variable sur la base des informations de réglage à l'un quelconque des états.
PCT/JP2014/060912 2013-04-23 2014-04-17 Terminal de communication mobile et procede de commande de terminal de communication mobile WO2014175156A1 (fr)

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JP2013090459A JP5762461B2 (ja) 2013-04-23 2013-04-23 移動通信端末
JP2013-090459 2013-04-23

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US11563549B2 (en) 2017-05-30 2023-01-24 Andrew Wireless Systems Gmbh Selectable band suppression for a distributed antenna system

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Publication number Priority date Publication date Assignee Title
WO2019102848A1 (fr) 2017-11-24 2019-05-31 株式会社村田製作所 Circuit haute fréquence, circuit frontal haute fréquence et dispositif de communication

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US20090285135A1 (en) * 2008-05-19 2009-11-19 Nokia Corporation Apparatus method and computer program for radio-frequency path selection and tuning
JP2012222468A (ja) * 2011-04-05 2012-11-12 Ntt Docomo Inc 移動通信システムにおけるユーザ装置及び方法

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JPH02303225A (ja) * 1989-05-18 1990-12-17 Nec Corp 送受共用器
US20090285135A1 (en) * 2008-05-19 2009-11-19 Nokia Corporation Apparatus method and computer program for radio-frequency path selection and tuning
JP2012222468A (ja) * 2011-04-05 2012-11-12 Ntt Docomo Inc 移動通信システムにおけるユーザ装置及び方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11563549B2 (en) 2017-05-30 2023-01-24 Andrew Wireless Systems Gmbh Selectable band suppression for a distributed antenna system

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JP2014216711A (ja) 2014-11-17

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