WO2015106407A1 - Dispositif radiofréquence, et système d'utilisateur - Google Patents

Dispositif radiofréquence, et système d'utilisateur Download PDF

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Publication number
WO2015106407A1
WO2015106407A1 PCT/CN2014/070654 CN2014070654W WO2015106407A1 WO 2015106407 A1 WO2015106407 A1 WO 2015106407A1 CN 2014070654 W CN2014070654 W CN 2014070654W WO 2015106407 A1 WO2015106407 A1 WO 2015106407A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
branch
fdd
tdd
antenna
Prior art date
Application number
PCT/CN2014/070654
Other languages
English (en)
Chinese (zh)
Inventor
官磊
薛丽霞
刘烨
Original Assignee
华为技术有限公司
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
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201480000449.6A priority Critical patent/CN105264791B/zh
Priority to PCT/CN2014/070654 priority patent/WO2015106407A1/fr
Publication of WO2015106407A1 publication Critical patent/WO2015106407A1/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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
    • 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

  • Embodiments of the present invention relate to the field of communications and, more particularly, to radio frequency devices and user systems. Background technique
  • Frequency Division Duplex In the Long Term Evolution (LTE) system, there are two types of duplex structures: Frequency Division Duplex (FDD) and Time Division Duplex (TDD).
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the uplink transmission and the downlink transmission are performed on different carriers.
  • the user equipment After accessing the base station, the user equipment (UE) can only work on one TDD carrier or a pair of system-associated FDD carrier pairs at the same time.
  • the Advanced Long Term Evolution (LTE-A) system introduces a carrier aggregation (Carrier Aggregation) system for the FDD carrier and the TDD carrier, that is, the base station configures at least one FDD uplink carrier for the UE and/or At least one FDD downlink carrier and at least one TDD carrier.
  • Carrier Aggregation Carrier Aggregation
  • FIG. 1 is a schematic diagram of a radio frequency architecture of a relatively direct user equipment 100.
  • the user equipment 100 includes an antenna 110, an antenna converter 120, a combiner 130, an FDD signal transceiver branch 140, and a TDD signal transceiver branch 150.
  • the FDD signal transmitting and receiving branch 140 includes a duplexer 141, an amplifier 142, an FDD signal transmitter, and an FDD signal receiver.
  • the FDD signal transmitted by the FDD signal transmitter is sequentially transmitted to the combiner 130 through the amplifier 142 and the duplexer 141.
  • the FDD signal transmitted from the combiner 130 to the FDD signal transmitting and receiving branch 140 is directly transmitted to the FDD signal receiver through the duplexer 141;
  • the TDD signal transmitting and receiving branch 150 includes the switching converter 151, the filter 152, the amplifier 153, a TDD signal transmitter and a TDD signal receiver, wherein the switching converter 151 is configured to turn on a TDD signal transmission link between the combiner 130 and the TDD signal transmitter or to turn on the combiner 130 and the TDD signal receiver.
  • the TDD signal is received by the link, and at the same time, only one link of the TDD signal transmission link and the TDD signal reception link is turned on.
  • the TDD signal transmitter is The transmitted signal is sequentially transmitted to the combiner 130 via the amplifier 153, the filter 152 and the switching converter 151, and if the TDD signal receiving link is turned on, the TDD signal transmitted by the combiner 130 sequentially passes through the switching converter 151, and filters.
  • the 152 is transmitted to the TDD signal receiver; the combiner 130 is configured to combine the signals received from the FDD signal transmitting and receiving branch 140 and the TDD signal transmitting and receiving branch 150, and convert the combined signals through the antenna.
  • the converter 120 is transmitted to the antenna 110, or is used to separate signals received from the antenna 110 through the antenna converter 120, and transmits the separated signals to the FDD signal transmitting and receiving branch 140 and the TDD signal transmitting and receiving branch 150, respectively.
  • the user equipment can support the aggregation of the FDD carrier and the TDD carrier.
  • the signal transmitted by the radio equipment passes through many intermediate devices, the difference of the signal is large, and the difference still exists in the case of single carrier configuration. , thereby reducing RF performance and user experience. Summary of the invention
  • the embodiment of the invention provides a radio frequency device and a user system, which can reduce the signal loss while realizing the aggregation of the FDD carrier and the TDD carrier.
  • an embodiment of the present invention provides a radio frequency device, including: an antenna, an antenna converter, a first branch, and a second branch, where the antenna converter is configured to turn on the antenna and the first branch a first signal transmission link or a second signal transmission link between the antenna and the second branch;
  • the first branch includes a TDD signal receiving branch, an FDD signal transmitting and receiving branch, and a combiner, The combiner is respectively connected to the TDD signal receiving branch and the FDD signal transmitting and receiving branch for separating signals received from the antenna converter and transmitting the separated signals to the TDD signal receiving branch and the FDD, respectively a signal transceiving branch, and a signal received from the FDD signal transmitting and receiving branch is transmitted to the antenna converter;
  • the second branch includes a TDD signal transmitting branch for transmitting a TDD signal, and the TDD signal passes through the antenna converter It is transmitted to the antenna.
  • the two ends of the antenna converter are respectively combined with the antenna and the first branch Connected.
  • the FDD signal transmitting and receiving branch includes: an FDD signal receiving branch, an FDD signal transmitting branch, and a duplexer.
  • the duplexer is connected to the combiner, and is configured to transmit the FDD signal transmitted by the FDD signal transmitting branch to the combiner, or transmit the FDD signal transmitted by the combiner to the FDD signal receiving branch. road.
  • the FDD signal transmission branch includes an FDD signal transmitter and an amplifier, and the signal transmitted by the FDD signal transmitter is amplified by the amplifier. Transmission to the duplexer; the FDD signal receiving branch includes an FDD signal receiver.
  • the TDD signal receiving branch includes: a TDD signal receiver and a filter, where the filter is used for The signal received by the combiner is filtered and the filtered signal is transmitted to the TDD signal receiver.
  • the TDD signal transmission branch includes a TDD signal transmitter, an amplifier, and a filter, where the TDD signal transmitter The transmitted TDD signal is sequentially amplified by the amplifier and filtered by the filter and transmitted to the antenna converter.
  • a sixth possible implementation if the antenna converter turns on the second signal transmission link, the two ends of the antenna converter are respectively connected to the antenna and The filter connection of the TDD signal transmission branch.
  • the combiner is further configured to receive a TDD signal received from the antenna converter and
  • a user system comprising the radio device in the first aspect or any of the possible implementations of the first aspect.
  • the radio frequency device and the user system provided by the embodiments of the present invention, the FDD signal transmitting and receiving branch and the TDD signal receiving branch are aggregated into a first branch through a combiner, and the second branch includes a TDD signal transmitting branch.
  • the antenna converter turns on the signal transmission link between the antenna and the first branch or the antenna and the second branch, so that the aggregation of the FDD carrier and the TDD carrier can be realized while the switching converter is omitted, and the signal is reduced. Differential loss, improve RF performance and user experience.
  • FIG. 1 is a schematic diagram of a radio frequency architecture of a prior art user equipment.
  • FIG. 2 is a schematic structural diagram of a radio frequency device according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a subframe configuration according to an embodiment of the present invention.
  • FIG. 4 is a schematic block diagram of a user system according to an embodiment of the present invention. detailed description
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • General Packet Radio Service General Packet Radio Service
  • LTE Long Term Evolution
  • LTE frequency division duplex Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • a user equipment may be referred to as a terminal (Terminal), a mobile station (Mobile Station, referred to as “MS”), a mobile terminal ( Mobile Terminal), etc.
  • the user equipment can communicate with one or more core networks via a Radio Access Network (“RAN"), for example, the user equipment can be a mobile phone (or “cellular” “Telephone", a computer with a mobile terminal, etc., for example, the user device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network.
  • RAN Radio Access Network
  • FIG. 2 is a schematic diagram of an architecture of a radio frequency device 200 according to an embodiment of the present invention, where the radio frequency device may be a stand-alone device or a part of an independent device, which is not limited by the embodiment of the present invention.
  • the radio frequency device 200 includes: an antenna 210, an antenna converter 220, a first branch 230, and a second branch 240, where
  • the antenna converter 220 is configured to turn on a first signal transmission link between the antenna 210 and the first branch 230 or turn on a second signal transmission link between the antenna 210 and the second branch 240.
  • the first branch 230 includes an FDD signal transmitting and receiving branch 232, a TDD signal receiving branch 233, and a combiner 231.
  • the combiner 231 is connected to the TDD signal receiving branch 233 and the FDD signal transmitting and receiving branch 232, respectively, for separating signals received from the antenna converter 220 and transmitting the separated signals to the TDD signal receiving branch respectively.
  • the path 233 and the FDD signal transmitting and receiving branch 232, and the signal from the FDD signal receiving and receiving branch receiving 232 are transmitted to the antenna converter 220;
  • the second branch 240 includes a TDD signal transmission branch for transmitting a TDD signal that is transmitted to the antenna 210 via the antenna converter 220.
  • the radio frequency equipment 200 of the embodiment of the present invention eliminates the switching converter, so that the signal transmitted between the antenna and the first branch does not need to pass through the switching converter, and the TDD
  • the signal transmitted by the transmitting branch can be directly transmitted to the antenna converter without the need for a sequential combiner and a switching converter, thereby reducing the signal loss.
  • the FDD signal transmitting and receiving branch and the TDD signal receiving branch are aggregated into a first branch through a combiner, the second branch includes a TDD signal transmitting branch, and the antenna converter is turned on.
  • the signal transmission link between the antenna and the first branch or the antenna and the second branch thereby realizing the aggregation of the FDD carrier and the TDD carrier while eliminating the switching converter, reducing the signal loss and improving the radio frequency performance. And user experience.
  • the FDD signal transmitting and receiving branch 232 is configured to transmit and receive FDD signals, that is, to receive the FDD signals separated by the combiner 231, and to transmit the FDD signals and transmit the FDD signals to the combiner 231.
  • the FDD signal transmitting and receiving branch includes a duplexer 2321, an FDD signal receiving branch, and an FDD signal transmitting branch, where the duplexer 2321 is connected to the combiner 231, and is configured to The FDD signal transmitted by the FDD signal transmitting branch is transmitted to the combiner 231, or the FDD signal transmitted by the combiner 231 is transmitted to the FDD signal receiving branch.
  • the duplexer 2321 can also be used to separate the FDD signal received from the combiner 231 from the FDD signal received from the FDD signal transmitting branch, but the embodiment of the present invention does not limit this.
  • the FDD signal transmitting branch is configured to transmit an FDD signal and transmit the FDD signal to a duplexer 2321
  • the FDD signal receiving branch for receiving an FDD signal transmitted from the duplexer 2321
  • the branch and the FDD signal receiving branch may include any component or combination of components capable of achieving the above functions.
  • the FDD signal transmission branch includes an FDD signal transmitter and an amplifier 2322, and the FDD signal transmitted by the FDD signal transmitter is amplified by the amplifier 2322 and transmitted to the duplexer 2321;
  • the FDD signal receiving branch may include an FDD signal receiver, and the FDD signal receiver may receive the FDD signal directly from the duplexer 2321, but the embodiment of the present invention is not limited thereto.
  • the TDD signal receiving branch is configured to receive the TDD signal transmitted from the combiner 231, and the TDD signal receiving branch may include any component or combination of components capable of implementing the above functions.
  • the TDD signal receiving branch includes: a TDD signal receiver and a filter 2331, wherein the filter 2331 is configured to filter the signal received from the combiner 231, and The filtered signal is transmitted to the TDD signal receiver, but the embodiment of the invention is not limited thereto.
  • the TDD signal transmitting branch is configured to transmit a TDD signal, and transmit the transmitted TDD signal to the antenna converter 220, where the TDD signal transmitting branch may include any component capable of implementing the foregoing functions. Or a combination of components.
  • the TDD signal transmission branch may include a TDD signal transmitter, an amplifier, and a filter, wherein the TDD signal transmitted by the TDD signal transmitter is sequentially amplified by the amplifier 242 and the filter 241 After filtering, it is transmitted to the antenna converter 220, but the embodiment of the invention is not limited thereto.
  • the combiner 220 is further configured to separate a signal received from the antenna converter with a signal received from the FDD signal transmitting branch.
  • the combiner 231 is further used to Separating the TDD signal received from the antenna converter 220 with the FDD signal received from the FDD signal transmitting and receiving branch 232, the separated TDD signal is transmitted to the TDD signal receiving branch 233, and the separated FDD signal
  • the FDD signal received from the FDD signal transmitting and receiving branch 232 may be specifically a signal received from the FDD signal transmitting branch, but the embodiment of the present invention is not limited thereto.
  • the antenna converter 220 is configured to turn on the first branch 230 and the antenna.
  • the antenna converter 220 is in a first signal transmission link conduction state and The two signal transmission links are switched between the on states, and at the same time, only one of the first transmission link and the second transmission link is turned on, and the other transmission link is disconnected.
  • the antenna converter 220 turns on the first signal transmission link, the two ends of the antenna converter 220 are respectively connected to the antenna 210 and the combiner 231 of the first branch 230.
  • the antenna converter 220 turns on the second signal transmission link, the two ends of the antenna converter 220 are respectively connected to the antenna 210 and the output end of the TDD signal transmission branch.
  • the output end of the TDD signal transmission branch may be the filter 241, but the embodiment of the present invention is not limited thereto.
  • the FDD signal transmitting and receiving branch and the TDD signal receiving branch are combined
  • the devices are combined into a first branch, and the TDD transmitting branch separately constitutes a second branch, and the first branch and the second branch are respectively electrically connected to the antenna through an antenna converter.
  • the radio frequency device communicates with other devices through the FDD signal transceiver branch and the TDD signal receiving branch.
  • the TDD signal The transmitting branch is unavailable; and when the second signal transmission link between the second branch and the antenna is turned on, the radio frequency device communicates with other devices through the TDD signal transmitting branch, at this time, the FDD signal The transceiver branch and the TDD signal receiving branch are not available.
  • FIG. 3 is a schematic diagram showing a corresponding subframe configuration when the first signal transmission link is turned on according to the embodiment of the present invention.
  • the TDD carrier includes an uplink subframe (U), a downlink subframe (D), and a special subframe (S), wherein the special subframe (S) includes three parts: a downlink part (DwPTS), and a top and bottom Line conversion part (GP) and uplink part (UpPTS).
  • DwPTS downlink part
  • GP Line conversion part
  • UpPTS uplink part
  • the uplink of the TDD carrier is unavailable; similarly, when the second signal transmission link is turned on, the uplink of the TDD carrier is available, and the downlink of the TDD carrier, the FDD downlink carrier, and The FDD uplink carrier is not available, but the embodiment of the present invention is not limited thereto.
  • the FDD signal transmitting and receiving branch and the TDD signal receiving branch are aggregated into a first branch through a combiner, the second branch includes a TDD signal transmitting branch, and the antenna converter is turned on.
  • the signal transmission link between the antenna and the first branch or the antenna and the second branch thereby realizing the aggregation of the FDD carrier and the TDD carrier while eliminating the switching converter, reducing the signal loss and improving the radio frequency performance. And user experience.
  • FIG. 4 shows a schematic block diagram of a user system 300 in accordance with an embodiment of the present invention, wherein the user system 300 includes the radio frequency device 310 shown in FIG. 2.
  • the user system 300 may further include other devices and devices. The embodiment of the present invention does not limit this.
  • the user system 300 can be a user equipment, and correspondingly, the radio frequency equipment 310 is one of the user equipments, but the embodiment of the present invention is not limited thereto.
  • the FDD signal transmitting and receiving branch and the TDD signal receiving branch are aggregated into a first branch through a combiner, the second branch includes a TDD signal transmitting branch, and the antenna converter is turned on.
  • the signal transmission link between the antenna and the first branch or the antenna and the second branch thereby realizing the aggregation of the FDD carrier and the TDD carrier while eliminating the switching converter, reducing the signal loss and improving the radio frequency performance.
  • the term "and/or" is merely an association relationship describing an associated object, indicating that there may be three relationships.
  • a and / or B can mean: There are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the character "/" in this article generally means that the contextual object is an "or" relationship.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several instructions.
  • a computer device which may be a personal computer, server, or network device, etc.
  • the foregoing storage medium includes: a USB flash drive, a removable hard disk, a read-only memory (called “ROM”), a random access memory (“RAM” called “RAM”), a disk or A variety of media such as optical discs that can store program code.

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

Abstract

La présente invention concerne un dispositif radiofréquence, et un système d'utilisateur. Le dispositif radiofréquence (200) comprend une antenne (210), une transducteur d'antenne (220), une première branche (230) et une seconde branche (240). Le transducteur d'antenne est utilisé pour conduire une première liaison de transmission de signal entre l'antenne et la première branche de l'antenne, ou une seconde liaison de transmission de signal entre l'antenne et la seconde branche de l'antenne. La première branche comprend une branche qui reçoit un signal de duplexage par répartition dans le temps (TDD), une branche qui transmet/reçoit un signal de duplexage par répartition en fréquence (FDD), et un combineur qui est connecté séparément à la branche qui reçoit le signal TDD et à la branche qui transmet/reçoit le signal FDD. La seconde branche comprend une branche qui transmet un signal TDD, et qui est utilisée pour transmettre un signal TDD transmis à l'antenne via le transducteur d'antenne. Le dispositif radiofréquence décrit dans le mode de réalisation de la présente invention exécute une agrégation de porteuse FDD et de porteuse TDD tout en réduisant la perte de signal et en améliorant les performances radiofréquence ainsi que l'expérience utilisateur.
PCT/CN2014/070654 2014-01-15 2014-01-15 Dispositif radiofréquence, et système d'utilisateur WO2015106407A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201480000449.6A CN105264791B (zh) 2014-01-15 2014-01-15 射频设备和用户系统
PCT/CN2014/070654 WO2015106407A1 (fr) 2014-01-15 2014-01-15 Dispositif radiofréquence, et système d'utilisateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/070654 WO2015106407A1 (fr) 2014-01-15 2014-01-15 Dispositif radiofréquence, et système d'utilisateur

Publications (1)

Publication Number Publication Date
WO2015106407A1 true WO2015106407A1 (fr) 2015-07-23

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WO (1) WO2015106407A1 (fr)

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CN114430313B (zh) * 2020-10-29 2024-04-23 Oppo广东移动通信有限公司 载波聚合控制方法、射频前端器件、电路、终端及介质

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