WO2012079309A1 - Dispositif d'émission/réception de système global de communication mobile (gsm) à quatre bandes et terminal sans fil - Google Patents

Dispositif d'émission/réception de système global de communication mobile (gsm) à quatre bandes et terminal sans fil Download PDF

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Publication number
WO2012079309A1
WO2012079309A1 PCT/CN2011/071463 CN2011071463W WO2012079309A1 WO 2012079309 A1 WO2012079309 A1 WO 2012079309A1 CN 2011071463 W CN2011071463 W CN 2011071463W WO 2012079309 A1 WO2012079309 A1 WO 2012079309A1
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WO
WIPO (PCT)
Prior art keywords
frequency
band
radio frequency
filter
transceiver
Prior art date
Application number
PCT/CN2011/071463
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English (en)
Chinese (zh)
Inventor
于娟
葛虎
Original Assignee
中兴通讯股份有限公司
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
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Publication of WO2012079309A1 publication Critical patent/WO2012079309A1/fr

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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
    • H04B1/0053—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
    • H04B1/006—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 switches for selecting the desired band

Definitions

  • the present invention relates to communication or, in particular, to a quad-band global mobile communication.
  • GSM Global system for Mobile Communication
  • GSM Global system for Mobile Communication
  • the relatively low-end mobile phones are basically GSM dual-band mobile phones, which is due to the current design of GSM quad-band mobile phones. Higher cost.
  • a quad-band GSM mobile phone requires a single-pole six-four Zheng antenna switch, a quad-band transmit function and port RF power amplifier (PA), and a surface acoustic wave (SAW) filter in each of the four frequency bands.
  • PA quad-band transmit function and port RF power amplifier
  • SAW surface acoustic wave
  • FIG. 1 is a structural diagram of hardware design of a four-band transmitter and receiver in the related art.
  • FIG. 2 is a diagram showing the relationship between the general four-band transmission and receiver logic control configuration shown in FIG. 1.
  • the transmitter has two transmit lines and four receive lines, so that the antenna switch is a single-pole six-throw, and there are six states required, that is, the antenna switch has six logic states.
  • the receiver also needs four sets of differential pairs to complete the reception of four frequency bands. Therefore, it can be concluded that according to the scheme of Figure 1, the antenna switch will have many states, and the transmitter and receiver will have many pins, which will not only increase the cost of the transmitter and receiver hardware, but also because Many pins and traces that are transmitted and received cause difficulty in layout routing.
  • the utility model provides a quad-band GSM transceiver and a wireless terminal, and the utility model provides a quad-band GSM transmitter and receiver with a large number of pins, which causes difficulty in layout routing and an increase in hardware cost. Solve at least one of the above problems. According to an aspect of the present invention, a four-band GSM transceiver is provided.
  • the quad-band GSM transceiver includes: an antenna, the transceiver further includes: a dual-frequency antenna switch, respectively connected to the antenna and two RF integrated devices; two RF integrated devices, the input ends of which are respectively connected in the double The two antenna receiving channels corresponding to the frequency antenna switch, wherein each of the RF integrated devices is a device integrating a single-pole double-throw switch and a filter corresponding to two frequency bands; and an RF transceiver chip having two receiving channels, wherein Each receive channel is coupled to an output of a radio frequency integrated device.
  • the above RF integrated device comprises: a single pole double throw switch connected to a receiving frequency band channel corresponding to the dual frequency antenna switch; a first single frequency surface acoustic wave (SAW) filter, the input end thereof and the single pole double throw switch One end is connected; the second single-band SAW filter has an input end connected to the second end of the single-pole double 4 Zheng switch.
  • the above RF integrated device comprises: a single pole double throw switch connected to a receiving band channel corresponding to the dual frequency antenna switch; a dual band SAW filter whose input end is connected with the single pole double throw switch.
  • the filter corresponding to the two frequency bands in one RF integrated device is a high frequency band filter, wherein the frequency band corresponding to the high frequency band filter is higher than a predetermined threshold; and the filter corresponding to the two frequency bands in the other RF integrated device is a low frequency band a filter, wherein a frequency band corresponding to the low frequency band filter is lower than a predetermined threshold.
  • the radio frequency transceiver chip includes: a low frequency LNA and a high frequency LNA; the high frequency band filter is connected to the high frequency LNA through a receiving channel of the radio frequency transceiver chip; the low band filter is connected to the low frequency LNA through another receiving channel of the radio frequency transceiver chip.
  • the frequency bands corresponding to the above high frequency band filter are GSM 1800 frequency band and GSM 1900 frequency band; the frequency bands corresponding to the low frequency band filter are GSM 850 frequency band and GSM 900 frequency band.
  • the transceiver device further includes: a radio frequency power amplifier located on a transmitting channel between the dual-frequency antenna switch and the radio frequency transceiver chip; the dual-frequency antenna switch and the radio frequency power amplifier are integrated in one radio frequency transmitting module.
  • the above antenna is a passive device having a four-frequency transceiving function.
  • the present invention also provides a wireless terminal.
  • the wireless terminal according to the present invention includes any of the aforementioned four-band GSM transceivers.
  • FIG. 1 is a hardware design architecture diagram of a four-band transmission and receiver in the related art
  • FIG. 2 is a diagram showing a relationship between a four-band transmission and receiver logic control configuration shown in FIG. 1;
  • FIG. 2 is a diagram showing a relationship between a four-band transmission and receiver logic control configuration shown in FIG. 1;
  • FIG. 4 is a schematic structural diagram of a radio frequency integrated device integrated with a high frequency band filter according to a preferred embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a radio frequency integrated device integrated with a high frequency band filter according to a preferred embodiment of the present invention
  • FIG. 6 is a schematic diagram of a logical control configuration of a quad-band GSM transceiver according to a preferred embodiment of the present invention.
  • a four-band GSM transceiver is provided.
  • 3 is a hardware design architecture diagram of a four-band GSM transceiver device according to an embodiment of the present invention.
  • the four-band GSM transceiver includes, in addition to the antenna 1, a dual-frequency antenna switch 3, two radio frequency integrated devices 4 and 5, and a radio frequency transceiver chip 6 having two receiving channels.
  • the dual-frequency antenna switch 3 is respectively connected to the antenna 1 and the two RF integrated devices 4 and 5, wherein each of the RF integrated devices is a device integrating a single-pole double-throw switch and a filter corresponding to two frequency bands;
  • the RF integrated devices 4 and 5 have their input terminals respectively connected to the two receiving frequency band channels corresponding to the dual frequency antenna switch;
  • the RF transceiver chip 6 having two receiving channels, wherein each receiving channel is respectively associated with a radio frequency integrated device The outputs are connected.
  • a dual-frequency antenna switch for example, a single-pole four-throw switch
  • two single-pole double-throw switches are used to select a suitable filter to implement a GSM quad-band scheme
  • the related art has been solved in the related art.
  • the antenna may be a passive device with a quad-frequency transceiver function.
  • the above-mentioned four-band GSM transceiver device may further include: a radio frequency power amplifier located on a transmission channel between the dual-frequency antenna switch 3 and the radio frequency transceiver chip 2, in the specific implementation process, the dual-frequency antenna switch 3 and the radio frequency power amplifier 2 can be integrated into one RF transmitter module, or it can be laid out independently.
  • the components integrated in the radio frequency integrated device include but are not limited to: a single pole double throw switch connected to a receiving frequency band channel corresponding to the dual frequency antenna switch; the first single frequency band SAW filter, the input end thereof and the single knife The first end of the double throw switch is connected; the second single frequency SAW filter has an input end connected to the second end of the single pole double throw switch.
  • the components integrated in the radio frequency integrated device include but are not limited to: a single pole double throw switch connected to a receiving band channel corresponding to the dual frequency antenna switch; a dual band SAW filter, the input end and the single pole double The throw switch is connected.
  • the above two integration methods of the RF integrated device are provided.
  • a single-pole double-throw switch and two single-band SAW filters can usually be integrated into the above RF integrated device. It is also possible to integrate a single pole double throw switch and a dual band SAW filter into the above RF integrated device. The switching of the single-pole double-throw switch allows the filter to switch between the two bands.
  • the two frequency bands described above may be set to one of the high frequency bands and the other to the low frequency bands. That is, the filter corresponding to the two frequency bands in one of the two radio frequency integrated devices may be set as a high frequency band filter, wherein the frequency band corresponding to the high frequency band filter is higher than a predetermined threshold; the above two radio frequency integration
  • the filter corresponding to the two frequency bands in another RF integrated device in the device may be a low band filter, wherein the frequency band corresponding to the low band filter is lower than a predetermined threshold.
  • the frequency bands corresponding to the high-band filter are usually GSM 1800 band and GSM 1900 band. For details, see Figure 4.
  • the frequency bands corresponding to the above-mentioned band filter are usually GSM 850 band and GSM 900 band, as shown in FIG. 5 .
  • Figure 4 depicts the RF integrated device with the high-band filter integrated as shown in Figure 3.
  • the device integrates a dual-frequency SAW filter with switch selection.
  • the device consists of a single-pole, double-throw switch.
  • the GSM1800/GSM1900 two-band common SAW filter chip and the matching circuit with its differential output are composed of three parts, and the electrical characteristics should also meet the previous basic frequency response limit requirements.
  • Figure 5 depicts the RF integrated device with integrated low-band filter as shown in Figure 3.
  • the dual-frequency SAW filter with switch is selected by a single-pole, double-throw switch, GSM850/GSM900 for two-band common SAW filtering.
  • the chip and the matching circuit combining its differential output are composed of three parts, and the electrical characteristics should meet the requirements of the previous basic frequency response.
  • the radio frequency transceiver chip includes, but is not limited to: a low frequency LNA and a high frequency LNA; wherein the high frequency band filter can be connected to the high frequency LNA through a receiving channel of the radio frequency transceiver chip; the low frequency band filter passes the radio frequency transceiver chip. The other receiving channel is connected to the low frequency LNA.
  • a single-pole double-throw switch can be added to the frequency-frequency receiving channel to select GSM850 and GSM900 to enter different SAW filters, and their differential output channels are combined and then enter the RF transceiver chip low-frequency LNA.
  • FIG. 6 is a logic control configuration diagram of a four-band GSM transceiver according to an example of the present invention.
  • the four-band GSM transceiver includes, in addition to the antenna 1 and the radio frequency power amplifier (PA) 2, a single-pole four-throw dual-frequency antenna switch 3, two radio frequency integrated devices 4 and 5, and A radio frequency transceiver chip 6 having two receiving channels.
  • PA radio frequency power amplifier
  • the single-pole four-throw dual-frequency antenna switch 3 is respectively connected with an antenna, an RF power amplifier and two RF integrated devices; two RF integrated devices 4 and 5, whose input ends are respectively connected to two receiving bands corresponding to the dual-frequency antenna switch
  • the first RF integrated device 4 is a device integrating a single-pole double-throw switch and two single-frequency filters (GSM850 filter and GSM900 filter)
  • the second RF integrated device 5 is integrated with one Single-pole dual 4 Zheng switch and two single-frequency filters (GSM 1800 filter and GSM 1900 filter).
  • the single-pole double-four-turn switch is integrated in the front end of the single-frequency filter.
  • the RF transceiver chip with two receiving channels 6 , wherein each receiving channel is respectively connected to an output end of a radio frequency integrated device.
  • the transmitting channel of the RF transceiver chip is connected to the PA 2, and the RF transceiver chip sends the signal through the PA and the antenna.
  • the frequency band can be selected.
  • the single-pole double-throw switch in the RF integrated device on the low-frequency receiving channel selects GSM850 and GSM900 to enter different SAW filters in the RF integrated device, and their differential output channels are combined and enter the RF transceiver chip low-frequency LNA.
  • Perform the next step single-pole double-throw switch in the RF integrated device on the high-frequency receiving channel, select GSM1800 and GSM1900, and enter different SAW filters in the RF integrated device. Their differential output channels are combined and then input into the RF transceiver.
  • the chip high frequency LNA is processed in the next step.
  • a wireless terminal including but not limited to the above-described four-band GSM transceiver.
  • the four-band GSM transceiver can be referred to the description of FIG. 3 to FIG. 6, and is not mentioned here.
  • the GSM quad-band scheme can be implemented relatively easily by using the new radio frequency integrated device in the quad-band GSM transceiver.
  • the new RF integrated device selects the accurate SAW filter receiving channel with appropriate logic control to achieve strict filtering before entering the RF transceiver chip, ensuring that the receiving performance of the terminal meets the design requirements.
  • layout and routing are also simplified, and valuable space is gained for increasing integration requirements.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed among multiple computing devices. On the network, optionally, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from The steps shown or described are performed sequentially, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention.
  • various modifications and changes can be made in the present invention. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Abstract

Le présent modèle d'utilité concerne un dispositif d'émission/réception de système global de communication mobile (GSM) à quatre bandes et un terminal sans fil. Le dispositif d'émission/réception GSM comprend une antenne, le dispositif d'émission/réception comprenant également : un commutateur d'antenne à bande double, respectivement connecté à l'antenne et à deux dispositifs intégrés à fréquences radio ; les deux dispositifs intégrés à fréquences radio dont les extrémités d'entrée sont connectées respectivement aux deux canaux de bande de réception auxquels le commutateur d'antenne à bande double correspond, chaque dispositif intégré à fréquences radio étant un dispositif dans lequel sont intégrés un commutateur unipolaire bidirectionnel et un filtre correspondant aux deux bandes ; un circuit intégré d'émission/réception à fréquences radio à deux canaux de réception, chaque canal de réception étant respectivement connecté aux extrémités de sortie d'un dispositif intégré à fréquences radio. La solution technique du présent modèle d'utilité permet de réduire les difficultés de mise en place du câblage, et de réduire considérablement le coût du matériel de la solution GSM à quatre bandes.
PCT/CN2011/071463 2010-12-17 2011-03-02 Dispositif d'émission/réception de système global de communication mobile (gsm) à quatre bandes et terminal sans fil WO2012079309A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010206657599U CN201976093U (zh) 2010-12-17 2010-12-17 四频段gsm收发装置及无线终端
CN201020665759.9 2010-12-17

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Publication Number Publication Date
WO2012079309A1 true WO2012079309A1 (fr) 2012-06-21

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WO (1) WO2012079309A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102332929B (zh) * 2011-09-23 2016-08-03 中兴通讯股份有限公司 双模射频模块、双模射频发送、接收方法以及用户终端
KR101991489B1 (ko) * 2012-09-03 2019-09-30 삼성전자주식회사 무선 통신 회로와 장치 및 그 제어 방법
CN112968710A (zh) * 2019-12-13 2021-06-15 航天信息股份有限公司 一种多频段的射频电路
CN111262597A (zh) * 2020-01-17 2020-06-09 深圳市普威技术有限公司 一种新型射频装置、射频装置控制方法和无线设备
CN111934708B (zh) * 2020-08-04 2022-05-20 西安博瑞集信电子科技有限公司 一种应用于射频收发链路的信号处理模块
CN113055042A (zh) * 2021-03-09 2021-06-29 维沃移动通信有限公司 射频电路和电子设备

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EP1796275A1 (fr) * 1999-06-10 2007-06-13 Nokia Corporation Émetteur-récepteur pour transmettre et recevoir un signal RF sur au moins deux plages de fréquences
CN201018628Y (zh) * 2007-01-19 2008-02-06 英华达(上海)电子有限公司 一种双模智能手机
US20100157858A1 (en) * 2008-12-24 2010-06-24 Rayspan Corporation Rf front-end module and antenna systems
CN101882941A (zh) * 2010-07-07 2010-11-10 中兴通讯股份有限公司 一种全球移动通讯系统四频收发的装置及设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1796275A1 (fr) * 1999-06-10 2007-06-13 Nokia Corporation Émetteur-récepteur pour transmettre et recevoir un signal RF sur au moins deux plages de fréquences
CN201018628Y (zh) * 2007-01-19 2008-02-06 英华达(上海)电子有限公司 一种双模智能手机
US20100157858A1 (en) * 2008-12-24 2010-06-24 Rayspan Corporation Rf front-end module and antenna systems
CN101882941A (zh) * 2010-07-07 2010-11-10 中兴通讯股份有限公司 一种全球移动通讯系统四频收发的装置及设备

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