WO2015024282A1 - 信号处理方法、装置及移动终端 - Google Patents

信号处理方法、装置及移动终端 Download PDF

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Publication number
WO2015024282A1
WO2015024282A1 PCT/CN2013/083782 CN2013083782W WO2015024282A1 WO 2015024282 A1 WO2015024282 A1 WO 2015024282A1 CN 2013083782 W CN2013083782 W CN 2013083782W WO 2015024282 A1 WO2015024282 A1 WO 2015024282A1
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Prior art keywords
antenna
signal
signals
filter
frequency bands
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PCT/CN2013/083782
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English (en)
French (fr)
Inventor
刘海广
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中兴通讯股份有限公司
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Publication of WO2015024282A1 publication Critical patent/WO2015024282A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/005Details 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
    • H04B1/0064Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band

Definitions

  • the present invention relates to the field of communications, and in particular to a signal processing method, apparatus, and mobile terminal.
  • LTE Long Term Evolution
  • WCDMA Wideband Code Division Multiple Access
  • GSM Global System for Mobile Communications
  • TD-SCDMA Time Division-Synchronization Code Division Multiple Access
  • Embodiments of the present invention provide a signal processing method, apparatus, and mobile terminal, to at least solve the related art, in which the use of multiple antennas in a multimode terminal results in a problem of limiting terminal development.
  • a signal processing apparatus including at least two transceiver chips for processing signals of different frequency bands, the signal processing apparatus further comprising: a first antenna connected to the multiplex filter, configured to Receiving a signal; the multiplex filter is connected to the at least two transceiver chips, and configured to filter the signal received by the first antenna to obtain signals of at least two frequency bands, and send signals of different frequency bands to corresponding Transceiver chip.
  • the signal processing device further includes: a second antenna, connected to the first transceiver chip of the at least two transceiver chips, configured to send the received signal to the first transceiver chip; An antenna is connected to the first transceiver chip by the multiplex filter.
  • the first antenna and the second antenna are antennas supporting the same communication system, wherein the first antenna is a main set antenna, and the second antenna is a diversity antenna; or the first antenna For the diversity antenna, the second antenna is a main set antenna.
  • the second antenna is configured to receive a signal of a data service; the first antenna is configured to receive a signal of the data service and a voice service.
  • the signal processing device further includes: a baseband chip, connected to the multiplex filter, configured to acquire a current mode and a frequency band of the device, select a filter parameter according to the standard and the frequency band, and The filtering parameter is set to the multiplex filter.
  • a mobile terminal comprising the signal processing device.
  • a signal processing method including: receiving a signal from a first antenna; filtering the signal to obtain signals of at least two different frequency bands; Signals of different frequency bands are sent to the transceiver chip that processes the signals in the frequency band.
  • the signal processing method further includes: receiving a signal from the second antenna; transmitting a signal of the second antenna to a first transceiver chip of the at least two transceiver chips; from the first antenna A signal obtained by filtering the signal through the multiplex filter is sent to the first transceiver chip.
  • the first antenna and the second antenna are antennas supporting the same communication system, wherein the first antenna is a main set antenna, and the second antenna is a diversity antenna; or the first antenna For the diversity antenna, the second antenna is a main set antenna.
  • the second antenna is configured to receive a signal of a data service; the first antenna is configured to receive a signal of the data service and a voice service.
  • the signal processing method further includes: acquiring a system and a frequency band in which the device is currently working; selecting a filtering parameter according to the system and the frequency band; and setting the filtering parameter to the multiplex filter.
  • the first antenna is connected to the multiplex filter and configured to receive the signal;
  • the multiplex filter is connected to the at least two transceiver chips, and is configured to filter the signal received by the first antenna to obtain at least two
  • the signal of the frequency band and the signals of different frequency bands are sent to the corresponding transceiver chip, which solves the problem that the use of multiple antennas in the multi-mode terminal in the related art leads to the limitation of terminal development, and the reduction of the multi-mode terminal antenna is realized.
  • FIG. 1 is a structural block diagram of a multimode dual standby in the related art
  • FIG. 2 is a structural diagram of a signal processing apparatus according to an embodiment of the present invention
  • FIG. 3 is a flow of a signal processing method according to an embodiment of the present invention.
  • FIG. 4 is a block diagram of a multimode dual standby structure in accordance with a preferred embodiment of the present invention
  • Figure 5 is a block diagram 2 of a multimode dual standby structure in accordance with a preferred embodiment of the present invention
  • Circuit diagram of the duplex filter DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments.
  • FIG. 2 is a structural diagram of a signal processing apparatus according to an embodiment of the present invention. As shown in FIG.
  • the apparatus includes a first antenna 202, a multiplex filter 204, and a transceiver.
  • the chip 206 wherein the first antenna 202 can be connected to the multiplex filter 204 and configured to receive signals; the multiplex filter 204 can be connected to the at least two transceiver chips 206 and configured to receive signals from the first antenna 202. Filtering is performed to obtain signals of at least two frequency bands, and signals of different frequency bands are sent to corresponding transceiver chips 206.
  • the signal is received after the first antenna is connected to the duplex filter; the multiplex filter is connected to the transceiver chip, and the signals of the different frequency bands filtered by the first antenna are sent to the corresponding transceiver chip, and the used signal is used.
  • Filter to filter signals in different frequency bands That is, the multiplex filter in the device can filter signals of multiple frequency bands from one antenna signal, and the signals of these frequency bands can correspond to different standards, thereby solving the problem that at least one antenna is used in one system in the related art.
  • the invention solves the problem that the use of multiple antennas in the multi-mode terminal in the related art leads to the limitation of terminal development, and the reduction of the multi-mode terminal antenna is realized.
  • the signal processing device may further include: a second antenna, connectable to the first transceiver chip of the at least two transceiver chips, configured to send the received signal to the transceiver chip; the first antenna may pass the multiplex filter Connected to the first transceiver chip.
  • the first antenna and the second antenna may be antennas supporting the same communication system, wherein the first antenna may be a main set antenna, and the second antenna may be a diversity antenna; or the first antenna may be a diversity antenna, and the second antenna may be a
  • the main antenna, the second antenna may be configured to receive signals of data services; the first antenna may be configured to receive signals of data services and voice services.
  • TD-LTE, FDD-LTE, WCDMA, TD-SCDMA (HSDPA/HSUPA), and GSM multimode dual standby there may be a main set antenna (for TD-LTE, FDD- LTE, WCDMA, TD-SCDMA uplink and main set reception), diversity antenna is set to diversity reception, baseband signal combining is realized, and the downlink data service rate and the antenna required for GSM transmission and reception work are increased.
  • GSM performs CS (Circuit Switched) voice service, while other multi-mode systems perform data services.
  • the antenna design adopts antenna multiplexing of other multi-mode main sets and diversity antennas.
  • the method can save one antenna and optimize the layout space and area of the terminal.
  • 1 is a structural block diagram of a multimode dual standby in the related art. As shown in FIG. 1, a primary set and a diversity antenna are used for Time Division Long Term Evolution (TD-LTE), and a frequency division duplex long-term. The Frequency Division Duplexing Long Term Evolution (FDD-LTE) and WCDMA primary and diversity reception are used to improve the downlink data service rate.
  • GSM is one of the other mandatory ones. It uses an antenna independently and is set to perform uplink and downlink voice services.
  • GSM is one of the mandatory standby modes for providing voice services in multimode dual standby, while other systems WCDMA, TD-SCDMA (High Speed Downlink Packet Access (HSDPA)/high speed uplink packet connection)
  • HSDPA High Speed Downlink Packet Access
  • HSUPA High Speed Uplink Packet Access
  • LTE LTE
  • WCDMA does not use a diversity antenna, which causes a decrease in data service rate, and cannot achieve a multi-mode dual standby simultaneous operation scenario.
  • not only one antenna is saved, but also the problem that the user in the related art uses the multi-mode dual standby to perform the voice service, the data service is automatically cut off and the rate is slow, and the multi-mode dual is realized.
  • the signal processing device may further include: a baseband chip, connected to the multiplex filter, configured to acquire a current mode and a frequency band of the device, and select a filter parameter according to the standard and the frequency band, and The filter parameter is set to the multiplex filter.
  • a baseband chip connected to the multiplex filter, configured to acquire a current mode and a frequency band of the device, and select a filter parameter according to the standard and the frequency band, and The filter parameter is set to the multiplex filter.
  • FIG. 3 is a flowchart of a signal processing method according to an embodiment of the present invention. As shown in FIG.
  • the method includes the following steps: Step 302, receiving from the first Step 410: Filter the signal to obtain signals of at least two different frequency bands; Step 306: Send the signals of the at least two different frequency bands to the transceiver chip that processes the signal of the frequency band.
  • Step 302 receiving from the first Step 410: Filter the signal to obtain signals of at least two different frequency bands; Step 306: Send the signals of the at least two different frequency bands to the transceiver chip that processes the signal of the frequency band.
  • the signal received by the first antenna is filtered to obtain signals of at least two different frequency bands, and the signals of the at least two different frequency bands are sent to the transceiver chip for processing the signal of the frequency band, thereby solving the multi-mode in the related art.
  • the need to use multiple antennas in the terminal leads to the problem of limiting the development of the terminal, and the reduction of the multimode terminal antenna is realized.
  • the following description will be made in conjunction with the preferred embodiments.
  • FIG. 4 is a block diagram showing the structure of a multimode dual standby according to a preferred embodiment of the present invention.
  • GSM transmission is implemented by adding a tunable duplex filter (Diplexer).
  • the receiving antenna is shared with the diversity antennas of LTE and WCDMA, which saves one antenna.
  • GSM and WCDMA, LTE diversity reception work in different frequency bands, and before the antenna enters the antenna switch, the signal enters the corresponding RF front-end link according to the filter selection branch of the different frequency bands.
  • the GSM uplink and downlink transmission and reception and the diversity reception of other modes can be simultaneously operated by multiplexing one antenna, thereby improving the size and space utilization of the Printed Circuit Board (PCB).
  • the baseband side can adaptively adjust the bandwidth and the operating frequency of the filter according to the requirements of the working frequency band according to GSM and other standards, thereby ensuring that the dual modes work simultaneously without mutual interference.
  • the digital baseband (DBB) physical layer can obtain the current dual-mode working mode and frequency band according to the network side parameters reported by the protocol, and select filter parameters according to different modes of the standard and modulation techniques.
  • FIG. 5 is a structural block diagram 2 of a multimode dual standby according to a preferred embodiment of the present invention. As shown in FIG. 5, a GSM transmit receive antenna and a main set antenna of LTE and WCDMA are multiplexed.
  • GSM Global System for Mobile communications
  • LTE, WCDMA, TD-SCDMA and GSM multimode dual standby solutions GSM is one of the mandatory dual standbys for voice services
  • LTE, WCDMA, TD-SCDMA (HSDPA/HSUPA) and other technologies prioritize data services.
  • 6 is a circuit schematic diagram of a duplex filter according to a preferred embodiment of the present invention. As shown in FIG. 6, a combination of two tunable high-pass and low-pass filters is used in the circuit. Tuning the Diplexer can also be called a tunable filter.
  • the added tunable filter circuit can adjust the corresponding bandwidth and operating frequency band through the baseband.
  • the baseband can adjust the bandwidth of the corresponding filter through the logic control unit of the SPI operation tuning filter to achieve the purpose of suppressing adjacent channel interference and blocking.
  • the baseband side can select whether to select the bypass (bypass) BYPASS or the corresponding filter according to the network policy information.
  • the baseband The tunable filter can be controlled by the SPI to operate in the BYPASS state, thereby reducing the front end portion (Front End Module, FEM for short) link insertion loss, optimizing the circuit design link matching; when the dual standby operating frequency bands are similar, the baseband is controlled by SPI
  • the bandwidth of the filter increases the rejection of the signals in the interworking frequency band.
  • the embodiments and the preferred embodiments of the present invention can save the antenna structure of the multi-mode dual standby circuit design, improve the design space and size utilization of the terminal PCB, reduce the complexity of the circuit design cost, and simultaneously tunable Diplexer (diplex filter)
  • the solution can adjust the bandwidth according to the requirements of the multi-mode dual standby frequency band to effectively filter out-band blocking and spurious signals, and improve terminal sensitivity and data service rate.
  • the above modules or steps of the embodiments of the present invention can be implemented by a general computing device, which can be concentrated on a single computing device or distributed in multiple computing devices.
  • embodiments of the invention are not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
  • the technical solution of the embodiments of the present invention can be applied to the field of signal processing, and solves the problem that the use of multiple antennas in a multimode terminal in the related art leads to the limitation of terminal development, and the reduction of the multimode terminal antenna is realized.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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  • Radio Transmission System (AREA)

Abstract

本发明公开了信号处理方法、装置及移动终端,其中,该装置包括:第一天线,与多工滤波器连接,用于接收信号;多工滤波器,与至少两个收发芯片连接,用于对第一天线接收的信号进行滤波得到至少两个频段的信号,并将不同频段的信号发送至对应的收发芯片。通过本发明解决了相关技术中在使用多模终端中需要使用多个天线导致了限制终端发展的问题,实现了多模终端天线的减少。

Description

信号处理方法、 装置及移动终端 技术领域 本发明涉及通信领域, 具体而言, 涉及信号处理方法、 装置及移动终端。 背景技术 随着长期演进 (Long Term Evolution, 简称为 LTE); 及宽带码分多址移动通信系 统 (Wideband Code Division Multiple Access, 简称为 WCDMA)、 全球移动通信系统 (Global System for Mobile Communications, 简称为 GSM)、时分同步的码分多址技术 (Time Division-Synchronization Code Division Multiple Access, 简称为 TD-SCDMA) 等各种制式及技术的发展, 用户对于数据业务和语音业务同时工作的场景的需求越来 越大。 而业界出现的多模双待的方案中, 由于两种待机制式需要同时工作, 理论上至 少需要三个天线, 而在终端尺寸和面积不断缩小的主流趋势下, 限制了终端的发展。 相关技术中, 在使用多模终端中需要使用多个天线导致了限制终端发展的问题, 目前尚未提出很好的技术方案。 发明内容 本发明实施例提供了信号处理方法、 装置及移动终端, 以至少解决相关技术中, 在使用多模终端中需要使用多个天线导致了限制终端发展的问题。 根据本发明实施例的一个方面, 提供了一种信号处理装置, 包括至少两个处理不 同频段信号的收发芯片, 所述信号处理装置还包括: 第一天线, 与多工滤波器连接, 设置为接收信号; 所述多工滤波器, 与所述至少两个收发芯片连接, 设置为对所述第 —天线接收的信号进行滤波得到至少两个频段的信号, 并将不同频段的信号发送至对 应的收发芯片。 优选地, 所述信号处理装置还包括: 第二天线, 与所述至少两个收发芯片中的第 一收发芯片连接, 设置为将接收到的信号发送所述第一收发芯片; 所述第一天线, 通 过所述多工滤波器与所述第一收发芯片连接。 优选地, 所述第一天线和所述第二天线为支持同一通信制式的天线, 其中, 所述 第一天线为主集天线, 所述第二天线为分集天线; 或者, 所述第一天线为分集天线, 所述第二天线为主集天线。 优选地, 所述第二天线设置为接收数据业务的信号; 所述第一天线设置为接收所 述数据业务和语音业务的信号。 优选地, 所述信号处理装置还包括: 基带芯片, 与所述多工滤波器连接, 设置为 获取所述装置当前工作的制式和频段, 根据所述制式和所述频段选择滤波参数, 并将 所述滤波参数设置于所述多工滤波器。 根据本发明实施例的另一个方面, 还提供了一种移动终端, 所述移动终端包括所 述的信号处理装置。 根据本发明实施例的再一个方面, 还提供了一种信号处理方法, 包括: 接收来自 第一天线的信号; 对所述信号进行滤波得到至少两个不同频段的信号; 将所述至少两 个不同频段的信号发送至处理该频段信号的收发芯片。 优选地, 所述信号处理方法还包括: 接收来自第二天线的信号; 将所述第二天线 的信号发送至所述至少两个收发芯片中的第一收发芯片; 将来自所述第一天线信号通 过所述多工滤波器滤波得到的信号发送至所述第一收发芯片。 优选地, 所述第一天线和所述第二天线为支持同一通信制式的天线, 其中, 所述 第一天线为主集天线, 所述第二天线为分集天线; 或者, 所述第一天线为分集天线, 所述第二天线为主集天线。 优选地, 所述第二天线设置为接收数据业务的信号; 所述第一天线设置为接收所 述数据业务和语音业务的信号。 优选地, 所述信号处理方法还包括: 获取所述装置当前工作的制式和频段; 根据 所述制式和所述频段选择滤波参数; 将所述滤波参数设置于所述多工滤波器。 通过本发明实施例, 第一天线, 与多工滤波器连接, 设置为接收信号; 多工滤波 器, 与至少两个收发芯片连接, 设置为对第一天线接收的信号进行滤波得到至少两个 频段的信号, 并将不同频段的信号发送至对应的收发芯片, 解决了相关技术中在使用 多模终端中需要使用多个天线导致了限制终端发展的问题, 实现了多模终端天线的减 少。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中- 图 1是相关技术中的多模双待的结构框图; 图 2是根据本发明实施例的信号处理装置的结构图; 图 3是根据本发明实施例的信号处理方法的流程图; 图 4是根据本发明优选实施例的多模双待的结构框图一; 图 5是根据本发明优选实施例的多模双待的结构框图二; 图 6是根据本发明优选实施例的双工滤波器的电路原理图。 具体实施方式 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 互组合。 下面将参考附图并结合实施例来详细说明本发明。 在本实施例中提供了一种信号处理装置, 图 2是根据本发明实施例的信号处理装 置的结构图,如图 2所示,该装置包括第一天线 202,多工滤波器 204和收发芯片 206, 其中, 第一天线 202, 可以与多工滤波器 204连接, 设置为接收信号; 多工滤波器 204, 可以与至少两个收发芯片 206连接, 设置为对第一天线 202接 收的信号进行滤波得到至少两个频段的信号, 并将不同频段的信号发送至对应的收发 芯片 206。 本发明实施例中, 通过第一天线与双工滤波器连接后接收信号; 多工滤波器与收 发芯片连接, 将第一天线滤波后的不同频段的信号发送给对应的收发芯片, 使用了多 工滤波器来过滤不同频段的信号。 即通过本装置中的多工滤波器可以从一个天线信号 中过滤出多种频段的信号, 这些频段的信号可以对应不同的制式, 从而解决了相关技 术中一个制式至少要使用一个天线的问题, 解决了相关技术中在使用多模终端中需要 使用多个天线导致了限制终端发展的问题, 实现了多模终端天线的减少。 优选地, 在某些通信制式中, 可能存在两个天线, 一个作为主集天线, 一个作为 分集天线, 此时共用的天线可以是主集天线也可以是分集天线。 或者, 也可以讲进行 语音业务的天线和进行数据业务的天线公用。即信号处理装置还可以包括: 第二天线, 可以与至少两个收发芯片中的第一收发芯片连接, 设置为将接收到的信号发送给该收 发芯片; 第一天线, 可以通过多工滤波器与第一收发芯片连接。 第一天线和第二天线 可以为支持同一通信制式的天线, 其中, 第一天线可以为主集天线, 第二天线可以为 分集天线; 或者, 第一天线可以为分集天线, 第二天线可以为主集天线, 第二天线可 以设置为接收数据业务的信号;第一天线可以设置为接收数据业务和语音业务的信号。 在本实施例的优选实施方式中, TD-LTE、 FDD-LTE、 WCDMA、 TD-SCDMA (HSDPA/HSUPA)和 GSM的多模双待,可以存在主集天线(用于 TD-LTE、 FDD-LTE、 WCDMA, TD-SCDMA的上行和主集接收)、 分集天线设置为分集接收, 实现基带信 号合并, 增加下行数据业务速率和 GSM的收发工作所需的天线。 在本实施例中 GSM 进行 CS (电路交换) 语音业务, 而其他多模制式进行数据业务, GSM在进行业务的 时候, 电路设计中采取了天线复用其他多模制式的主集、 分集天线的方法, 可以节省 一个天线, 优化终端布局空间和面积。 图 1是相关技术中的多模双待的结构框图, 如图 1所示, 主集和分集天线用于时 分长期演进 (Time Division Long Term Evolution, 简称为 TD-LTE)、 频分双工长期演 进 (Frequency Division Duplexing Long Term Evolution, 简禾尔为 FDD-LTE)、 WCDMA 的主、 分集接收用于提高下行数据业务速率。 GSM为另外必选单待之一, 独立使用一 个天线, 设置为进行上下行的语音业务。 GSM为多模双待中提供语音业务的必选待机 模式之一, 而其他制式 WCDMA、 TD-SCDMA (高速下行分组接入 (High Speed Downlink Packet Access,简称为 HSDPA) /高速上行链路分组接入 (High Speed Uplink Packet Access, 简称为 HSUPA))、 LTE等作为数据业务的模式作为另外一种待机模式。 当 GSM需要使用天线的时候, WCDMA并未有使用分集天线, 造成数据业务速率的 降低, 不能实现多模双待同时工作的场景。在上述实施例中, 不仅仅节省了一个天线, 还解决了相关技术中用户在使用多模双待中, 进行语音业务的同时, 数据业务被自动 切断和速率慢的问题, 实现了多模双待语音业务和数据业务互不受影响。 为了增加该天线的可配置性, 优选的, 信号处理装置还可以包括: 基带芯片, 与 多工滤波器连接, 用于获取装置当前工作的制式和频段, 根据制式和频段选择滤波参 数, 并将该滤波参数设置于该多工滤波器。 通过添加 diplexer (双工滤波器) 的方法, 实现多模双待不同频段同时工作的方案。 优选地, 避免多模双待同时工作相互干扰的 影响, 在添加的 Diplexer电路设计实施方式中, 内部设计为可调谐的不同频段的滤波 器, 根据不同的频段的工作需求, 调整滤波器的带宽值, 提高带外抑制度, 有效消除 带外杂散及阻塞信号。 在本实施例中还提供了一种移动终端, 该移动终端包括该信号处理装置, 解决了 相关技术中在使用多模终端中需要使用多个天线导致了限制终端发展的问题, 实现了 多模终端天线的减少。 在本实施例中, 还提供了一种信号处理方法, 图 3是根据本发明实施例的信号处 理方法的流程图, 如图 3所示, 该方法包括如下的步骤: 步骤 302, 接收来自第一天线的信号; 步骤 304, 对信号进行滤波得到至少两个不同频段的信号; 步骤 306, 将该至少两个不同频段的信号发送至处理该频段信号的收发芯片。 通过上述步骤, 将第一天线接收的信号滤波得到至少两个不同频段的信号, 并将 该至少两个不同频段的信号发送给处理该频段信号的收发芯片, 解决了相关技术中在 使用多模终端中需要使用多个天线导致了限制终端发展的问题, 实现了多模终端天线 的减少。 下面结合优选实施例进行说明。 图 4是根据本发明优选实施例的多模双待的结构框图一, 如图 4所示, 在该优选 实施例中, 通过添加可调谐的双工滤波器 (Diplexer) 的方法, 实现 GSM发射接收天 线和 LTE、 WCDMA的分集天线共用, 可节省一个天线。在该优选实施例中, GSM和 WCDMA、 LTE分集接收工作在不同的频段, 在天线进入天线开关之前信号根据高低 不同的频段的滤波器选择支路进入对应的射频前端链路。 这样可以保证 GSM上下行 发射接收和 LTE、 WCDMA等其他模式的分集接收通过复用一根天线而同时工作, 提 高了终端电路板 (Printed Circuit Board, 简称为 PCB) 尺寸及空间利用率。 在本优选实施方式中, 基带侧可根据 GSM和其他制式根据所工作频段的需求自 适应调整滤波器的带宽及工作频率, 从而保证双模同时工作, 且不会产生相互干扰。 在优选实施例中, 数字基带 (Digital Baseband, 简称为 DBB)物理层可以根据协议桟 上报的网侧参数获取当前双模工作的制式和频段, 根据制式及调制技术的不同选择的 滤波器参数, 通过串行外围接口 (Serial Peripheral interface, 简称为 SPI) 写进可调谐 双工滤波器的寄存器进行调整, 完成调整滤波器带宽和频段, 实现可调谐的目的, 可 以消除双模同时工作的互扰的影响, 抑制阻塞及邻频干扰等。 图 5是根据本发明优选实施例的多模双待的结构框图二, 如图 5所示, 采用 GSM 发射接收天线和 LTE、 WCDMA 的主集天线复用的方式实现。 在 LTE、 WCDMA、 TD-SCDMA和 GSM多模双待方案中, GSM作为其中必选的双待之一进行语音业务, 而 LTE、 WCDMA、 TD-SCDMA (HSDPA/HSUPA) 等制式优先进行数据业务, 也可 以进行语音业务。 图 6是根据本发明优选实施例的双工滤波器的电路原理图, 如图 6所示, 在此电 路中采用两个可调谐的高通、 低通滤波器组合而成, 可称之为可调谐 Diplexer, 也可 称之为可调谐滤波器。 通过增加本电路提出一种多模双待新的解决方案, 实现了多模 双待使用两个天线的方案中同时工作的目的。 为了增加本发明实施例的实用性, 添加的可调谐滤波器电路可以通过基带调整相 应的带宽及工作频段。 基带可以通过 SPI操作调谐滤波器的逻辑控制单元调整相应滤 波器的带宽, 实现抑制邻频干扰和阻塞的目的。 图 6所示的可调谐滤波器中,基带侧可根据网策信息选择是否将滤波器选择为(旁 路) BYPASS或者对应滤波器的方式, 当多模双待工作频段相隔较远时, 基带可以通 过 SPI控制可调谐滤波器工作在 BYPASS状态,从而降低前端部分(Front End Module, 简称为 FEM)链路插损, 优化电路设计链路匹配; 当双待工作频段相近时, 基带通过 SPI控制滤波器的带宽而增加对相互工作频段信号的抑制。 本发明实施例和优选实施例可以使多模双待的终端电路设计节省一个天线, 提高 终端 PCB设计空间和尺寸利用率, 降低电路设计成本复杂度, 同时可调谐的 Diplexer (双工滤波器) 的方案可以根据多模双待工作频段的需求进行调整带宽可有效滤除带 外阻塞及杂散信号, 提高终端灵敏度及数据业务速率。 显然, 本领域的技术人员应该明白, 上述的本发明实施例的各模块或各步骤可以 用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算 装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 或者将它们分别制作成各个集成电 路模块, 或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本 发明实施例不限制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。 工业实用性 本发明实施例的技术方案可以应用在信号处理领域, 解决了相关技术中在使用多 模终端中需要使用多个天线导致了限制终端发展的问题,实现了多模终端天线的减少。

Claims

权 利 要 求 书
1. 一种信号处理装置, 包括至少两个处理不同频段信号的收发芯片, 所述装置还 包括:
第一天线, 与多工滤波器连接, 设置为接收信号;
所述多工滤波器, 与所述至少两个收发芯片连接, 设置为对所述第一天线 接收的信号进行滤波得到至少两个频段的信号, 并将不同频段的信号发送至对 应的收发芯片。
2. 根据权利要求 1所述的装置, 其中,
所述装置还包括: 第二天线, 与所述至少两个收发芯片中的第一收发芯片 连接, 设置为将接收到的信号发送所述第一收发芯片;
所述第一天线, 通过所述多工滤波器与所述第一收发芯片连接。
3. 根据权利要求 2所述的装置, 其中, 所述第一天线和所述第二天线为支持同一 通信制式的天线, 其中, 所述第一天线为主集天线, 所述第二天线为分集天线; 或者, 所述第一天线为分集天线, 所述第二天线为主集天线。
4. 根据权利要求 2或 3所述的装置, 其中, 所述第二天线设置为接收数据业务的 信号; 所述第一天线设置为接收所述数据业务和语音业务的信号。
5. 根据权利要求 1至 4中任一项所述的装置, 其中, 所述装置还包括: 基带芯片, 与所述多工滤波器连接, 设置为获取所述装置当前工作的制式 和频段, 根据所述制式和所述频段选择滤波参数, 并将所述滤波参数设置于所 述多工滤波器。
6. 一种移动终端, 所述移动终端包括权利要求 1至 5中任一项所述的信号处理装 置。
7. 一种信号处理方法, 包括: 接收来自第一天线的信号;
对所述信号进行滤波得到至少两个不同频段的信号;
将所述至少两个不同频段的信号发送至处理该频段信号的收发芯片。
8. 根据权利要求 7所述的方法, 其中, 所述方法还包括: 接收来自第二天线的信号; 将所述第二天线的信号发送 至所述至少两个收发芯片中的第一收发芯片; 将来自所述第一天线信号通过所述多工滤波器滤波得到的信号发送至所述 第一收发芯片。
9. 根据权利要求 8所述的方法, 其中, 所述第一天线和所述第二天线为支持同一 通信制式的天线, 其中, 所述第一天线为主集天线, 所述第二天线为分集天线; 或者, 所述第一天线为分集天线, 所述第二天线为主集天线。
10. 根据权利要求 8或 9所述的方法, 其中, 所述第二天线设置为接收数据业务的 信号; 所述第一天线设置为接收所述数据业务和语音业务的信号。
11. 根据权利要求 7至 10中任一项所述的方法, 其中, 所述方法还包括: 获取所述装置当前工作的制式和频段;
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