WO2013063922A1 - 射频收发器、终端和终端接收信号的方法 - Google Patents

射频收发器、终端和终端接收信号的方法 Download PDF

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Publication number
WO2013063922A1
WO2013063922A1 PCT/CN2012/075942 CN2012075942W WO2013063922A1 WO 2013063922 A1 WO2013063922 A1 WO 2013063922A1 CN 2012075942 W CN2012075942 W CN 2012075942W WO 2013063922 A1 WO2013063922 A1 WO 2013063922A1
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Prior art keywords
signal
antenna
radio frequency
frequency transceiver
primary
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PCT/CN2012/075942
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English (en)
French (fr)
Inventor
马凯
陈子轩
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中兴通讯股份有限公司
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Publication of WO2013063922A1 publication Critical patent/WO2013063922A1/zh

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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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1081—Reduction of multipath noise

Definitions

  • the present invention relates to mobile communication technologies, and in particular, to a method for receiving signals by a radio frequency transceiver, a terminal, and a terminal.
  • a high-end mobile phone terminal often integrates Bluetooth, wireless fidelity (WIFI), radio (FM), gravity sensing, geomagnetic induction, acceleration. Induction, Global Positioning System (GPS) and other systems, while systems involving signal transmission (such as WIFI, Bluetooth, GPS, etc.) will have antennas, transmit and receive front ends and signal processing systems on mobile terminals, and these systems often They all exist independently and are not reused.
  • WIFI wireless fidelity
  • FM radio
  • GPS Global Positioning System
  • the traditional mobile phone radio frequency architecture of a wideband code division multiple access (WCDMA) mobile phone terminal includes a plurality of independent radio frequency systems, including WCDMA, Bluetooth, WIFI, GPS, and the like.
  • the WCDMA system receives the signal through the main antenna 1, and then enters the RF transceiver chip 7 via the antenna switch 4 to the duplexer 6 to the receiving path; the Bluetooth system reaches the Bluetooth baseband signal via the Bluetooth antenna 2 via the Bluetooth matching circuit 8 and the Bluetooth RF transceiver chip 9.
  • Processing chip 10; WIFL GPS is similar to Bluetooth, receiving signals through respective receiving antennas, and performing signal processing via respective matching circuits and transceiver chips to baseband chips.
  • the embodiments of the present invention provide a method for receiving signals by a radio frequency transceiver, a terminal, and a terminal, so as to solve the problems that the existing terminal signal receiving capability changes drastically with environmental changes, and the transmission speed is low.
  • the embodiment of the present invention provides a radio frequency transceiver, which is applied to a terminal, where the radio frequency transceiver includes a radio frequency transceiver chip, and the terminal includes a main receiving system and at least one auxiliary receiving system.
  • the primary receiving system includes a primary antenna, a primary receiving module, and the radio frequency transceiver, which are sequentially connected.
  • the secondary receiving system includes a secondary antenna and a secondary receiving module that are sequentially connected, and the radio frequency transceiver further includes: a signal processing module.
  • the method is configured to: connect to the radio frequency transceiver chip, synchronously receive a signal sent by the auxiliary receiving module corresponding to the main receiving module and the idle auxiliary antenna, synthesize the received multipath signal into one signal, and output the signal to the radio frequency transceiver. chip.
  • the secondary receiving module includes an antenna switch, a matching circuit, and a filter that are sequentially connected, where: the matching circuit is configured to: match a secondary antenna corresponding to the secondary receiving module, and transmit the auxiliary to the filter The signal received by the antenna;
  • the filter is configured to: filter the signal sent by the matching circuit and output the signal to the signal processing module.
  • the primary receiving module includes the primary antenna and the signal processing module.
  • the secondary receiving system is at least two, and when the signal received by the primary antenna is a signal other than a WCDMA signal and a CDMA signal, the primary receiving module is located between the primary antenna and the signal processing module. Antenna switches, antenna matching circuits, and other devices.
  • the embodiment of the present invention provides a terminal, where the terminal includes a primary receiving system and at least one secondary receiving system, where the primary receiving system includes a primary antenna, a primary receiving module, and a radio frequency transceiver, which are sequentially connected, and the secondary receiving system includes A secondary antenna and a secondary receiving module are sequentially connected, and the radio frequency transceiver uses the above-mentioned radio frequency transceiver.
  • the embodiment of the present invention provides a radio frequency transceiver, which is applied to a terminal, where the radio frequency transceiver includes a radio frequency transceiver chip, the terminal includes a main receiving system and at least one auxiliary receiving system, and the main receiving system includes a serial connection.
  • the signal processing module is configured to: synchronously receive a signal sent by the primary receiving module and the secondary receiving module corresponding to the idle auxiliary antenna, and combine the received multiple signals into one signal, and output the signal to the filtering module;
  • the filtering module is configured to: connect to the radio frequency transceiver chip, filter the signal output by the signal processing module, and output the signal to the radio frequency transceiver chip.
  • the auxiliary receiving module includes an antenna switch and a matching circuit that are sequentially connected, wherein: the matching circuit is configured to: match a secondary antenna corresponding to the secondary receiving module, and transmit the auxiliary antenna to the signal processing module.
  • the signal is configured to: match a secondary antenna corresponding to the secondary receiving module, and transmit the auxiliary antenna to the signal processing module. The signal.
  • the primary receiving module includes the primary antenna and the signal processing module.
  • the secondary receiving system is at least two, and when the signal received by the primary antenna is a signal other than a WCDMA signal and a CDMA signal, the primary receiving module is located between the primary antenna and the signal processing module. Antenna switches, antenna matching circuits, and other devices.
  • the embodiment of the present invention provides a terminal, where the terminal includes a primary receiving system and at least one secondary receiving system, where the primary receiving system includes a primary antenna, a primary receiving module, and a radio frequency transceiver, which are sequentially connected, and the secondary receiving system includes A secondary antenna and a secondary receiving module are sequentially connected, and the radio frequency transceiver uses the above-mentioned radio frequency transceiver.
  • An embodiment of the present invention provides a method for a terminal to receive a signal, where the method includes:
  • the radio frequency transceiver of the main receiving system synchronously receives the multi-channel signal sent by the auxiliary receiving system corresponding to the main receiving system and the idle auxiliary antenna; the radio frequency transceiver synthesizes the received multi-channel signal into one signal and outputs the signal to the radio frequency transceiver. chip.
  • An embodiment of the present invention provides a method for a terminal to receive a signal, where the method includes:
  • the radio frequency transceiver of the main receiving system synchronously receives the multi-channel signal sent by the auxiliary receiving system corresponding to the main receiving system and the idle auxiliary antenna; the radio frequency transceiver synthesizes the received multi-channel signal into one signal, and the road is The signal is filtered and output to the RF transceiver chip.
  • the radio frequency transceiver and the terminal use the multiplex receiving mode to synchronously receive the base station signal through the main antenna and the idle auxiliary antenna, thereby realizing multipath receiving, and greatly improving the receiving signal transmission speed and the signal receiving strength.
  • BRIEF abstract 1 is a schematic diagram of a radio frequency architecture of a conventional WCDMA mobile phone terminal;
  • FIG. 2 is a schematic diagram of a radio frequency architecture of a mobile phone of an embodiment of a WCDMA mobile phone terminal according to the present invention
  • FIG. 3 is a schematic diagram of a radio frequency architecture of a mobile phone of an embodiment of the WCDMA mobile phone terminal of the present invention.
  • the embodiment of the present invention provides a radio frequency transceiver, which is applied to a terminal, where the terminal includes a main receiving system and at least one auxiliary receiving system, and the radio frequency transceiver includes a radio frequency transceiver chip, and the main receiving
  • the system includes a main antenna, a main receiving module, and the radio frequency transceiver, which are sequentially connected.
  • the auxiliary receiving system includes a secondary antenna and a secondary receiving module that are sequentially connected, and the radio frequency transceiver further includes: a signal processing module, and the radio frequency
  • the transceiver chip is connected to receive the signal sent by the auxiliary receiving module corresponding to the primary receiving module and the idle auxiliary antenna, and combine the received multiple signals into one signal and output the signal to the RF transceiver chip.
  • the secondary receiving module includes an antenna switch, a matching circuit, and a filter that are sequentially connected, where: the matching circuit is configured to match a secondary antenna corresponding to the secondary receiving module, and send the auxiliary to the filter a signal received by the antenna; the filter is configured to filter the signal sent by the matching circuit and output the signal to the signal processing module.
  • the primary receiving system mentioned in the embodiment of the present invention refers to a system corresponding to the current signal to be received.
  • the current primary receiving system is a WCDMA system, and for example, the current receiving.
  • the signal is a Bluetooth signal, and the current primary receiving system is a Bluetooth system.
  • the primary receiving system and the secondary receiving system in this embodiment are not fixed.
  • the primary receiving module When the signal received by the primary antenna is a Wideband Code Division Multiple Access (WCDMA) signal or a Code Division Multiple Access (CDMA) signal, the primary receiving module includes an antenna between the primary antenna and the signal processing module. Switches and duplexers.
  • WCDMA Wideband Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • FIG. 2 is a schematic diagram of a radio frequency architecture of a mobile phone terminal according to an embodiment of a WCDMA mobile phone terminal of the present invention.
  • each system does not exist independently, but uses an idle antenna when the Bluetooth, WIFI, and GPS systems are idle.
  • the receiving system serves as a secondary receiving system or a component diversity receiving system of the WCDMA receiving system.
  • the WCDMA system receives the signal from the main antenna 1 via the antenna switch 4 to the duplexer 8, and then to the signal processing module 11 and then enters the radio frequency transceiver module 12; when the Bluetooth system itself is idle (ie, when the Bluetooth function is not used, or the Bluetooth system does not During signal processing and signal transmission behavior, after receiving the WCDMA signal, the Bluetooth antenna 2 does not pass through the Bluetooth matching circuit 14 but switches to the new antenna matching circuit 13 via the antenna switch 5 (this matching circuit is for the Bluetooth antenna to receive WCDMA). The matching circuit designed by the signal) then enters the signal processing module 11 through the filter 9 (this signal processing module is used to process several received signals, process, integrate, and combine the signals into one signal), and then enter the RF transceiver.
  • the WIFL GPS system receives WCDMA signals in a similar manner to the Bluetooth system.
  • the signals received by the respective antennas pass through the antenna switch and enter the signal processing module 11 via the new matching circuit and filter.
  • the signal processing module 11 processes and integrates the signals.
  • the signal processing module 11 and the radio frequency transceiver module 12 are included in the improved radio frequency transceiver chip, that is, signal integration and transceiving processing are performed inside the chip.
  • the above multiplexed receiving architecture integrates WCDMA and other RF receiving systems, and uses other RF receiving systems as auxiliary receiving systems of WCDMA to receive signals in multiple ways.
  • these matching circuit is used to match Bluetooth, WIFI, GPS antennas to receive WCDMA signals
  • filter filter
  • the WCDMA needs to receive the noise signal outside the band signal
  • the signals received by the WCDMA system and the WCDMA system itself are combined to form a signal through the signal processing module, and enter the WCDMA RF transceiver module for signal processing.
  • the primary receiving module when the signal received by the primary antenna is a signal other than a WCDMA signal and a CDMA signal, such as a Bluetooth signal, the primary receiving module includes an antenna switch and an antenna between the primary antenna and the signal processing module.
  • the matching circuit of course, the main receiving module may also include other peripheral circuits or other devices, such as filters, baluns, etc.; at this time, as the main receiving system of the Bluetooth system, the auxiliary receiving corresponding to the idle WIFI antenna may be received.
  • the system synchronously receives the Bluetooth signal, and the implementation process is the same as the process of synchronously receiving the WCDMA signal shown in FIG. 2, and is no longer here. Narration.
  • the WCDMA antenna is not in an idle state under normal circumstances, for Bluetooth or WIFI systems, only idle systems other than WCDMA can be used to simultaneously receive signals.
  • the WCDMA system it is also possible for the WCDMA system to use the time division technology and other main receiving systems to simultaneously receive signals.
  • the main antenna of the WCDMA mobile phone is used as a secondary antenna of other systems, or when other systems are used as auxiliary antennas of the WCDMA system, the auxiliary antennas are all Is a multi-frequency antenna or broadband antenna for different applications.
  • the terminal including the radio frequency transceiver adopts the multiplex receiving mode to synchronously receive the base station signal through the main receiving system and the auxiliary receiving system, thereby realizing multipath receiving, and greatly improving the receiving signal transmission speed and the signal receiving strength.
  • the embodiment of the present invention further provides a radio frequency transceiver, which is applied to a terminal, where the terminal includes a main receiving system and at least one auxiliary receiving system, and the radio frequency transceiver includes a radio frequency transceiver chip, wherein the main The receiving system includes a main antenna, a main receiving module, and the radio frequency transceiver, which are sequentially connected.
  • the auxiliary receiving system includes a secondary antenna and a secondary receiving module that are sequentially connected, and the radio frequency transceiver further includes a signal processing module and a filter that are sequentially connected. Module, where:
  • the signal processing module is configured to synchronously receive a signal sent by the primary receiving module and the auxiliary receiving module corresponding to the idle auxiliary antenna, and synthesize the received multiple signals into one signal, and output the signal to the filtering module;
  • the filtering module is connected to the radio frequency transceiver chip, and is configured to filter the signal output by the signal processing module and output the signal to the radio frequency transceiver chip.
  • the auxiliary receiving module includes an antenna switch and a matching circuit that are sequentially connected, where: the matching circuit is configured to match a secondary antenna corresponding to the auxiliary receiving module, and transmit the auxiliary antenna to the signal processing module. signal.
  • the primary receiving module when the signal received by the primary antenna is a Wideband Code Division Multiple Access (WCDMA) signal or a Code Division Multiple Access (CDMA) signal, the primary receiving module includes a location between the primary antenna and the signal processing module. Antenna switch and duplexer. When the signal received by the primary antenna is a signal other than a WCDMA signal and a CDMA signal, the primary receiving module includes an antenna switch, an antenna matching circuit, and other peripherals between the primary antenna and the signal processing module. Circuit, at the end There are at least two secondary receiving systems in the terminal.
  • WCDMA Wideband Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • the mobile phone radio frequency architecture of the WCDMA mobile phone terminal embodiment of the present invention is shown in FIG. 2.
  • the radio frequency frame in this embodiment is basically the same as the mobile phone radio frequency architecture shown in FIG. 2, and the difference is that the improved radio frequency transceiver chip integrates the filter circuit.
  • the signal received by the auxiliary receiving system or the diversity receiving system does not need to be filtered, and directly enters the signal processing module of the RF transceiver chip for integration processing, and then is filtered by the internal filtering module, thereby saving the use of the external filter and integrating More degree.
  • the above is the two radio frequency architectures of the composite receiving mobile terminal, the purpose of which is to fully utilize the Bluetooth, WIFI and GPS systems in the idle state, integrate the antenna and the receiving system to make it a secondary receiving system or component diversity of the mobile phone network communication.
  • the receiving system thereby improving the receiving capability of the signal and increasing the data transmission rate, is an integration, improvement and improvement of the receiving system of the mobile terminal.
  • the above-mentioned radio frequency transceiver and terminal use the multiplex receiving mode to synchronously receive the base station signal through the main antenna and the idle auxiliary antenna, thereby realizing multipath reception, and greatly improving the receiving signal transmission speed and the signal receiving strength.

Abstract

一种射频收发器、终端和终端接收信号的方法，其中，该射频收发器，应用于终端中，该射频收发器包括射频收发芯片，所述终端包括一个主接收系统和至少一个辅接收系统，所述主接收系统包括依次连接的主天线、主接收模块和所述射频收发器，所述辅接收系统包括依次连接的辅天线和辅接收模块，所述射频收发器还包括：信号处理模块，设置为：与所述射频收发芯片相连，同步接收所述主接收模块和空闲的辅天线对应的辅接收模块发送的信号，将接收到的多路信号合成一路信号后输出至所述射频收发芯片。上述射频收发器及终端，采用复用接收方式通过主天线和空闲的辅天线同步接收基站信号，实现多径接收，大大提高接收信号传输速度和信号接收强度。

Description

射频收发器、 终端和终端接收信号的方法
技术领域
本发明涉及移动通信技术， 尤其涉及一种射频收发器、 终端和终端接收 信号的方法。
背景技术
随着手机终端市场需求的发展， 手机的设计集成度复杂程度越来越高， 一台高端手机终端往往集成了蓝牙、 无线保真（WIFI ) 、 收音机（FM ) 、 重 力感应、 地磁感应、 加速度感应、 全球定位系统（GPS )等多种系统， 而涉 及到信号传输的系统（比如 WIFI、蓝牙、 GPS等）就会在手机终端上有天线、 发送接收前端和信号处理系统， 而这些系统往往都是各自独立存在的， 并不 复用。
如图 1所示， 以宽带码分多址（WCDMA )手机终端为例的传统的手机 射频架构包括多个相互独立的射频系统， 包括 WCDMA、 蓝牙、 WIFI、 GPS 等系统。 WCDMA系统通过主天线 1接收信号， 经由天线开关 4到双工器 6 后到接收路再进入射频收发芯片 7; 蓝牙系统通过蓝牙天线 2经由蓝牙匹配 电路 8、 蓝牙射频收发芯片 9到达蓝牙基带信号处理芯片 10; WIFL GPS类 似于蓝牙， 通过各自的接收天线将信号接收， 经由各自的匹配电路、 收发芯 片到基带芯片进行信号处理。
上述架构的终端进行网络通信数据传输时， 存在信号接收能力随环境变 化改变剧烈、 传输速度同样受到影响致使传输速度较低等问题。 发明内容
本发明实施例提供了一种射频收发器、 终端和终端接收信号的方法， 以 解决现有的终端信号接收能力随环境变化改变剧烈、 传输速度较低等问题。
本发明实施例提供了一种射频收发器， 应用于终端中， 所述射频收发器 包括射频收发芯片， 所述终端包括一个主接收系统和至少一个辅接收系统， 所述主接收系统包括依次连接的主天线、 主接收模块和所述射频收发器， 所 述辅接收系统包括依次连接的辅天线和辅接收模块，所述射频收发器还包括： 信号处理模块， 其设置为： 与所述射频收发芯片相连， 同步接收所述主接收 模块和空闲的辅天线对应的辅接收模块发送的信号， 将接收到的多路信号合 成一路信号后输出至所述射频收发芯片。
优选地， 所述辅接收模块包括依次连接的天线开关、 匹配电路和滤波器， 其中： 所述匹配电路设置为： 匹配所述辅接收模块对应的辅天线， 向所述滤 波器传送所述辅天线接收的所述信号；
所述滤波器设置为： 对所述匹配电路发送的所述信号进行滤波后输出至 所述信号处理模块。
优选地， 当所述主天线接收的信号为宽带码分多址（WCDMA )信号或 码分多址（CDMA )信号时， 所述主接收模块包括位于所述主天线和所述信 号处理模块之间的天线开关和双工器； 或者
所述辅接收系统至少为两个， 当所述主天线接收的信号为除 WCDMA信 号和 CDMA信号之外的信号时，所述主接收模块包括位于所述主天线和所述 信号处理模块之间的天线开关、 天线匹配电路以及其他器件。
本发明实施例提供了一种终端， 该终端包括一个主接收系统和至少一个 辅接收系统， 所述主接收系统包括依次连接的主天线、 主接收模块和射频收 发器， 所述辅接收系统包括依次连接的辅天线和辅接收模块， 所述射频收发 器釆用的是上述的射频收发器。
本发明实施例提供了一种射频收发器， 应用于终端中， 所述射频收发器 包括射频收发芯片， 所述终端包括一个主接收系统和至少一个辅接收系统， 所述主接收系统包括依次连接的主天线、 主接收模块和所述射频收发器， 所 述辅接收系统包括依次连接的辅天线和辅接收模块， 所述射频收发器还包括 依次连接的信号处理模块和滤波模块， 其中：
所述信号处理模块设置为： 同步接收所述主接收模块和空闲的辅天线对 应的辅接收模块发送的信号 , 将接收到的多路信号合成一路信号后输出至所 述滤波模块； 所述滤波模块， 设置为： 与所述射频收发芯片相连， 对所述信号处理模 块输出的信号滤波后输出至所述射频收发芯片。
优选地， 所述辅接收模块包括依次连接的天线开关和匹配电路， 其中： 所述匹配电路设置为： 匹配所述辅接收模块对应的辅天线， 向所信号处 理模块传送所述辅天线接收的所述信号。
优选地， 当所述主天线接收的信号为宽带码分多址（WCDMA )信号或 码分多址（CDMA )信号时， 所述主接收模块包括位于所述主天线和所述信 号处理模块之间的天线开关和双工器； 或者
所述辅接收系统至少为两个， 当所述主天线接收的信号为除 WCDMA信 号和 CDMA信号之外的信号时，所述主接收模块包括位于所述主天线和所述 信号处理模块之间的天线开关、 天线匹配电路以及其他器件。
本发明实施例提供了一种终端， 该终端包括一个主接收系统和至少一个 辅接收系统， 所述主接收系统包括依次连接的主天线、 主接收模块和射频收 发器， 所述辅接收系统包括依次连接的辅天线和辅接收模块， 所述射频收发 器釆用的是上述的射频收发器。
本发明实施例提供了一种终端接收信号的方法， 该方法包括：
主接收系统的射频收发器同步接收所述主接收系统和空闲的辅天线对应 的辅接收系统发送的多路信号； 所述射频收发器将接收到的多路信号合成一 路信号后输出至射频收发芯片。
本发明实施例提供了一种终端接收信号的方法， 该方法包括：
主接收系统的射频收发器同步接收所述主接收系统和空闲的辅天线对应 的辅接收系统发送的多路信号； 所述射频收发器将接收到的多路信号合成一 路信号， 并对该路信号滤波后输出至射频收发芯片。
上述射频收发器及终端， 釆用复用接收方式通过主天线和空闲的辅天线 同步接收基站信号， 实现多径接收， 大大提高接收信号传输速度和信号接收 强度。 附图概述 图 1是现有的 WCDMA手机终端的射频架构示意图；
图 2是本发明 WCDMA手机终端实施例的手机射频架构示意图一 图 3是本发明 WCDMA手机终端实施例的手机射频架构示意图二
本发明的较佳实施方式
为使本发明的目的、 技术方案和优点更加清楚明白， 下文中将结合附图 对本发明的实施例进行详细说明。 需要说明的是， 在不冲突的情况下， 本申 请中的实施例及实施例中的特征可以相互任意组合。
本发明实施例提供了一种射频收发器， 应用于终端中， 所述终端包括一 个主接收系统和至少一个辅接收系统， 所述射频收发器包括射频收发芯片， 其特征在于， 所述主接收系统包括依次连接的主天线、 主接收模块和所述射 频收发器， 所述辅接收系统包括依次连接的辅天线和辅接收模块， 所述射频 收发器还包括： 信号处理模块， 与所述射频收发芯片相连， 用于同步接收所 述主接收模块和空闲的辅天线对应的辅接收模块发送的信号， 将接收到的多 路信号合成一路信号后输出至所述射频收发芯片。
具体地， 所述辅接收模块包括依次连接的天线开关、 匹配电路和滤波器， 其中： 所述匹配电路， 用于匹配所述辅接收模块对应的辅天线， 向所述滤波 器传送所述辅天线接收的信号； 所述滤波器， 用于对所述匹配电路发送的信 号进行滤波后输出至所述信号处理模块。
需要说明的是， 本发明实施例中提到的主接收系统是指与当前待接收信 号对应的系统， 例如当前接收的信号为 WCDMA信号， 则当前的主接收系统 为 WCDMA系统， 又例如当前接收的信号为蓝牙信号， 则当前的主接收系统 为蓝牙系统， 本实施例中的主接收系统和辅接收系统不是固定不变的。
当所述主天线接收的信号为宽带码分多址（WCDMA )信号或码分多址 ( CDMA )信号时， 所述主接收模块包括位于所述主天线和所述信号处理模 块之间的天线开关和双工器。
上述射频收发器， 釆用复用接收方式同步接收基站信号， 实现多径接收， 大大提高接收信号传输速度和信号接收强度。 如图 2所示，是本发明 WCDMA手机终端实施例的手机射频架构示意图 一， 该实施例中， 各个系统不再独立存在， 而是在蓝牙、 WIFI、 GPS系统空 闲时， 利用其空闲的天线、接收系统作为 WCDMA接收系统的辅接收系统或 组成分集接收系统。 WCDMA系统是从主天线 1接收信号， 经由天线开关 4 到双工器 8, 之后到信号处理模块 11再进入射频收发模块 12; 蓝牙系统本身 空闲时 (即不使用蓝牙功能时，或蓝牙系统没有信号处理、信号传输行为时 ) , 蓝牙天线 2接收 WCDMA信号后， 不再经过蓝牙匹配电路 14而是经过天线 开关 5切换到新的天线匹配电路 13 (此匹配电路是为了使蓝牙天线可以接收 WCDMA信号而设计的匹配电路）， 然后经过滤波器 9进入信号处理模块 11 (此信号处理模块用于处理几路接收信号， 对信号进行处理、 整合、 合路成 为一路信号）， 信号再进入射频收发模块 12; WIFL GPS系统接收 WCDMA 信号的行为类似于蓝牙系统， 通过各自天线接收信号通过天线开关经由新的 匹配电路、 滤波器后进入信号处理模块 11 , 信号处理模块 11对信号进行处 理、 整合再进入射频收发模块 12。 而信号处理模块 11和射频收发模块 12是 包含在改进的射频收发芯片内部的， 即信号整合以及收发处理都在芯片内部 进行。
综上所述， 上述复用接收的架构是整合了 WCDMA和其他射频接收系 统，并将其他射频接收系统作为 WCDMA的辅接收系统，多路分集接收信号。 在其他射频系统空闲时， 利用其天线接收 WCDMA信号后经过天线开关， 经 由新的匹配电路 （此匹配电路是用于匹配蓝牙、 WIFI、 GPS 天线以接收 WCDMA信号）， 再经过滤波器 (滤除 WCDMA所需接收频段信号之外的噪 声信号）， 之后几路信号和 WCDMA系统本身接收的信号通过信号处理模块 合成一路信号， 进入 WCDMA射频收发模块进行信号处理。
另外， 当所述主天线接收的信号为除 WCDMA信号和 CDMA信号之外 的信号例如蓝牙信号时， 所述主接收模块包括位于所述主天线和所述信号处 理模块之间的天线开关、 天线匹配电路， 当然， 该主接收模块还可以包括其 他外围电路或其他器件， 例如滤波器， 巴伦（balun )等； 而此时作为蓝牙系 统的主接收系统可以通过空闲的 WIFI天线对应的辅接收系统同步接收蓝牙 信号， 其实现过程与图 2所示同步接收 WCDMA信号的过程相同， 此处不再 赘述。
由于通常情况下， WCDMA的天线不会处于空闲态， 因此， 对于蓝牙或 WIFI系统， 只能利用除 WCDMA之外的其他空闲系统来同步接收信号。 当 然，对于 WCDMA系统利用时分技术和其他主接收系统同步接收信号也是可 以的， 需要说明的是， WCDMA手机主天线做其他系统的辅天线， 或者其他 系统做 WCDMA系统的辅天线时，辅天线都是一个多频天线或者宽频天线做 不同的应用。
包含上述射频收发器的终端， 釆用复用接收方式通过主接收系统和辅接 收系统同步接收基站信号， 实现多径接收， 大大提高接收信号传输速度和信 号接收强度。
本发明实施例还提供了一种射频收发器， 应用于终端中， 所述终端包括 一个主接收系统和至少一个辅接收系统，所述射频收发器包括射频收发芯片， 其特征在于， 所述主接收系统包括依次连接的主天线、 主接收模块和所述射 频收发器， 所述辅接收系统包括依次连接的辅天线和辅接收模块， 所述射频 收发器还包括依次连接的信号处理模块和滤波模块， 其中：
所述信号处理模块， 用于同步接收所述主接收模块和空闲的辅天线对应 的辅接收模块发送的信号， 将接收到的多路信号合成一路信号后输出至所述 滤波模块；
所述滤波模块， 与所述射频收发芯片相连， 用于对所述信号处理模块输 出的信号滤波后输出至所述射频收发芯片。
具体地， 所述辅接收模块包括依次连接的天线开关和匹配电路， 其中： 所述匹配电路， 用于匹配所述辅接收模块对应的辅天线， 向所信号处理 模块传送所述辅天线接收的信号。
其中， 当所述主天线接收的信号为宽带码分多址（WCDMA )信号或码 分多址（CDMA )信号时， 所述主接收模块包括位于所述主天线和所述信号 处理模块之间的天线开关和双工器。 当所述主天线接收的信号为除 WCDMA 信号和 CDMA信号之外的信号时，所述主接收模块包括位于所述主天线和所 述信号处理模块之间的天线开关、 天线匹配电路以及其他外围电路， 此时终 端中的辅接收系统至少为两个。
如图 3所示，本发明 WCDMA手机终端实施例的手机射频架构示意图二， 该实施例中的射频构架与图 2所示的手机射频架构基本一致， 区别在于改进 的射频收发芯片整合了滤波电路， 辅接收系统或分集接收系统接收到的信号 不需要经过滤波处理， 直接进入射频收发芯片的信号处理模块进行整合处理 之后再经过内部的滤波模块进行滤波处理， 节约了外部滤波器的使用， 集成 化程度更高。
以上为复合接收的手机终端的两种射频架构， 其目的是将空闲状态下的 蓝牙、 WIFI、 GPS系统充分利用起来， 整合其天线、 接收系统使之成为手机 网络通信的辅接收系统或者组成分集接收系统，从而提高对信号的接收能力、 提高数据传输速率， 对手机终端的接收系统是一种整合、 改进和提升。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成， 上述程序可以存储于计算机可读存储介质中， 如只读 存储器、 磁盘或光盘等。 可选地， 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地， 上述实施例中的各模块 /单元可以釆用 硬件的形式实现， 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
以上实施例仅用以说明本发明的技术方案而非限制， 仅仅参照较佳实施 例对本发明进行了详细说明。 本领域的普通技术人员应当理解， 可以对本发 明的技术方案进行修改或者等同替换， 而不脱离本发明技术方案的精神和范 围， 均应涵盖在本发明的权利要求范围当中。
工业实用性 上述射频收发器及终端， 釆用复用接收方式通过主天线和空闲的辅天线 同步接收基站信号， 实现多径接收， 大大提高接收信号传输速度和信号接收 强度。

Claims

权 利 要 求 书
1、一种射频收发器，应用于终端中，所述射频收发器包括射频收发芯片， 其中， 所述终端包括一个主接收系统和至少一个辅接收系统， 所述主接收系 统包括依次连接的主天线、 主接收模块和所述射频收发器， 所述辅接收系统 包括依次连接的辅天线和辅接收模块， 所述射频收发器还包括：
信号处理模块， 其设置为： 与所述射频收发芯片相连， 同步接收所述主 接收模块和空闲的辅天线对应的辅接收模块发送的信号， 将接收到的多路信 号合成一路信号后输出至所述射频收发芯片。
2、 根据权利要求 1所述的射频收发器， 其中，
所述辅接收模块包括依次连接的天线开关、 匹配电路和滤波器， 其中： 所述匹配电路设置为： 匹配所述辅接收模块对应的辅天线， 向所述滤波 器传送所述辅天线接收的所述信号；
所述滤波器设置为： 对所述匹配电路发送的所述信号进行滤波后输出至 所述信号处理模块。
3、 根据权利要求 2所述的射频收发器， 其中，
当所述主天线接收的信号为宽带码分多址（WCDMA )信号或码分多址 ( CDMA )信号时， 所述主接收模块包括位于所述主天线和所述信号处理模 块之间的天线开关和双工器； 或者
所述辅接收系统至少为两个， 当所述主天线接收的信号为除 WCDMA信 号和 CDMA信号之外的信号时，所述主接收模块包括位于所述主天线和所述 信号处理模块之间的天线开关、 天线匹配电路以及其他器件。
4、一种射频收发器，应用于终端中，所述射频收发器包括射频收发芯片， 其中， 所述终端包括一个主接收系统和至少一个辅接收系统， 所述主接收系 统包括依次连接的主天线、 主接收模块和所述射频收发器， 所述辅接收系统 包括依次连接的辅天线和辅接收模块， 所述射频收发器还包括依次连接的信 号处理模块和滤波模块， 其中：
所述信号处理模块设置为： 同步接收所述主接收模块和空闲的辅天线对 应的辅接收模块发送的信号， 将接收到的多路信号合成一路信号后输出至所 述滤波模块；
所述滤波模块设置为： 与所述射频收发芯片相连， 对所述信号处理模块 输出的信号滤波后输出至所述射频收发芯片。
5、 根据权利要求 4所述的射频收发器， 其中，
所述辅接收模块包括依次连接的天线开关和匹配电路， 其中：
所述匹配电路设置为： 匹配所述辅接收模块对应的辅天线， 向所信号处 理模块传送所述辅天线接收的所述信号。
6、 根据权利要求 5所述的射频收发器， 其中，
当所述主天线接收的信号为宽带码分多址（WCDMA )信号或码分多址 ( CDMA )信号时， 所述主接收模块包括位于所述主天线和所述信号处理模 块之间的天线开关和双工器； 或者
所述辅接收系统至少为两个， 当所述主天线接收的信号为除 WCDMA信 号和 CDMA信号之外的信号时，所述主接收模块包括位于所述主天线和所述 信号处理模块之间的天线开关、 天线匹配电路以及其他器件。
7、 一种终端， 该终端包括一个主接收系统和至少一个辅接收系统， 所述 主接收系统包括依次连接的主天线、 主接收模块和射频收发器， 所述辅接收 系统包括依次连接的辅天线和辅接收模块， 所述射频收发器釆用的是如权利 要求 1-3任一权利要求所述的射频收发器。
8、 一种终端， 该终端包括一个主接收系统和至少一个辅接收系统， 所述 主接收系统包括依次连接的主天线、 主接收模块和射频收发器， 所述辅接收 系统包括依次连接的辅天线和辅接收模块， 所述射频收发器釆用的是如权利 要求 4-6任一权利要求所述的射频收发器。
9、 一种终端接收信号的方法， 该方法包括：
主接收系统的射频收发器同步接收所述主接收系统和空闲的辅天线对应 的辅接收系统发送的多路信号；
所述射频收发器将接收到的多路信号合成一路信号后输出至射频收发芯 片。
10、 一种终端接收信号的方法， 该方法包括：
主接收系统的射频收发器同步接收所述主接收系统和空闲的辅天线对应 的辅接收系统发送的多路信号；
所述射频收发器将接收到的多路信号合成一路信号， 并对该路信号滤波 后输出至射频收发芯片。
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