WO2019011330A1 - 天线切换方法及装置、天线系统、存储介质 - Google Patents

天线切换方法及装置、天线系统、存储介质 Download PDF

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Publication number
WO2019011330A1
WO2019011330A1 PCT/CN2018/095630 CN2018095630W WO2019011330A1 WO 2019011330 A1 WO2019011330 A1 WO 2019011330A1 CN 2018095630 W CN2018095630 W CN 2018095630W WO 2019011330 A1 WO2019011330 A1 WO 2019011330A1
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WO
WIPO (PCT)
Prior art keywords
antenna
link
received signal
strength
transmit
Prior art date
Application number
PCT/CN2018/095630
Other languages
English (en)
French (fr)
Inventor
李远勇
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
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP18832209.3A priority Critical patent/EP3654546A4/en
Publication of WO2019011330A1 publication Critical patent/WO2019011330A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0805—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching
    • H04B7/0814—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with single receiver and antenna switching based on current reception conditions, e.g. switching to different antenna when signal level is below threshold
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to an antenna switching method and apparatus, an antenna system, and a storage medium.
  • antennas are provided on many terminal products.
  • antennas have different performance in different scenarios.
  • the mobile terminal sets the antenna with the transmitting and receiving function at the bottom of the mobile terminal, so that when the user uses the mobile terminal to make a call, the antenna is away from the user's head, and the user's head absorbs the radiation of the antenna. Less, thereby reducing damage to the user's head when the mobile terminal transmits at high power.
  • placing the antenna at the bottom of the mobile terminal causes the performance of the main antenna to be greatly affected.
  • the present disclosure provides an antenna system including a first antenna, a second antenna, an antenna switch, and a processor, wherein the first antenna is connected to a first receive link, and the second antenna is connected to a second receive chain The first antenna or the second antenna is connected to the transmit link via the antenna switch, and the processor is configured to: acquire the first received by the first receive link via the first antenna The strength of the received signal and the strength of the second received signal received by the second receiving link via the second antenna; comparing the strength of the first received signal with the strength of the second received signal; and based on the comparison result Controlling the antenna switch to switch, so that the transmit link is connected to the first antenna or the second antenna via the antenna switch.
  • the present disclosure also provides an antenna switching method, including the steps of: acquiring an intensity of a first received signal received by a receiving link connected to a first antenna and a strength of a second received signal received by a receiving link connected to a second antenna; Determining an intensity of the first received signal and an intensity of the second received signal; and selecting a transmit link to connect the first antenna or the second antenna according to the comparison result.
  • the present disclosure also provides an antenna switching apparatus, including: an acquiring module configured to acquire an intensity of a first received signal received by a receiving link connected to a first antenna and a second received signal received by a receiving link connected to a second antenna a comparison module configured to compare an intensity of the first received signal with an intensity of the second received signal; and a selection module configured to select a transmit link to connect the first antenna or the second according to a comparison result antenna.
  • an acquiring module configured to acquire an intensity of a first received signal received by a receiving link connected to a first antenna and a second received signal received by a receiving link connected to a second antenna
  • a comparison module configured to compare an intensity of the first received signal with an intensity of the second received signal
  • a selection module configured to select a transmit link to connect the first antenna or the second according to a comparison result antenna.
  • the present disclosure also provides a storage medium storing a program including executable instructions that are executed to perform the antenna switching method provided by the present disclosure.
  • 1 is a schematic diagram showing an antenna switching mode
  • FIG. 2 is a flowchart illustrating an antenna switching method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram showing an antenna switching manner according to an embodiment of the present disclosure
  • FIG. 4 is a block diagram showing an antenna switching device according to an embodiment of the present disclosure.
  • FIG. 5 is a block diagram showing a terminal product to which an antenna switching method of an embodiment of the present disclosure is applied.
  • first and second in the present disclosure are only used to distinguish the same or similar objects, and are not used to describe a specific order, and the terms may be omitted if no distinction is needed. "First second”.
  • the terminal product may include a main antenna having a transceiving function and an auxiliary antenna having an auxiliary receiving function or a multiple input multiple output (MIMO) receiving function, and may have an antenna. Switching functions to ensure that the terminal products have better RF performance in different scenarios.
  • MIMO multiple input multiple output
  • Figure 1 shows a schematic diagram of an antenna switching mode.
  • the terminal product includes a first antenna Ant0 and a second antenna Ant1.
  • the first antenna Ant0 is connected to the first RF channel as a primary antenna, and has a transceiver function
  • the second antenna Ant1 serves as an auxiliary antenna. It is connected to the second RF channel and has an auxiliary receiving function.
  • the first RF channel includes a transmit link and a primary receive link
  • the second RF channel includes a secondary receive link.
  • the first antenna Ant0 may be connected to the first radio frequency channel or the second radio frequency channel via an antenna switch (for example, may be a double pole double throw (DPDT) switch), and the second antenna Ant1 may also be connected to the first via the antenna switch An RF channel or a second RF channel. That is, the primary receive link and the transmit link of the first radio frequency channel as a whole may be connected to the first antenna Ant0 or the second antenna Ant1 via the antenna switch, and the auxiliary receive link of the second radio channel may be The antenna switch is connected to the first antenna Ant0 or the second antenna Ant1.
  • an antenna switch for example, may be a double pole double throw (DPDT) switch
  • DPDT double pole double throw
  • the antenna switching switch can be controlled.
  • a relatively good antenna can be selected for transmission according to the receiving performance of the antenna.
  • the antenna switching mode shown in FIG. 1 has at least the following drawbacks: (1) The insertion loss introduced by the antenna switching switch has a certain influence on the receiving performance and the transmitting performance of the terminal product; (2) when the antenna switching switch is switched The reception performance of the first antenna Ant0 and the second antenna Ant1 is hopping, so it is often necessary to re-evaluate the reception performance of the first antenna Ant0 and the second antenna Ant1.
  • FIG. 2 is a flowchart illustrating an antenna switching method according to an embodiment of the present disclosure.
  • the antenna switching method of the embodiment of the present disclosure includes the following steps: S302: acquire the strength of the first received signal received by the receiving link connected to the first antenna and the received link received by the receiving link of the second antenna Second, the strength of the received signal; S304, comparing the strength of the first received signal with the strength of the second received signal; and S306, selecting a transmit link to connect the first antenna or the second antenna according to the comparison result.
  • the antenna switching method of the embodiment of the present disclosure only the antenna connected to the transmission link is switched, so it is only necessary to provide an antenna switching switch on the transmission link without setting an antenna on the receiving link.
  • the switch is switched to avoid the influence of the insertion loss introduced by the antenna switch on the receiving performance.
  • the receiving link connecting the first antenna and the receiving link connecting the second antenna remain unchanged, so the receiving performance of the first antenna Ant0 and the second antenna Ant1 does not exist. Change phenomenon.
  • step S306 includes: if the transmit link is connected to the first antenna, if the strength of the second received signal is higher than the strength of the first received signal, Transmitting the transmission link to be connected to the second antenna, if the strength of the second received signal is not higher than the strength of the first received signal, the transmit link remains connected to the first antenna; In a case where the transmission link is connected to the second antenna, if the strength of the first received signal is higher than the strength of the second received signal, switching the transmit link to be connected to the a first antenna, if the strength of the first received signal is not higher than the strength of the second received signal, the transmit link remains connected to the second antenna.
  • the transmitting The link is switched to be connected to the second antenna, and if the strength of the second received signal is not higher than a strength of the first received signal by a predetermined value, the transmit link remains connected to the first antenna; In a case where the transmission link is connected to the second antenna, if the strength of the first received signal is higher than a strength of the second received signal by a predetermined value, the transmitting link is switched to be connected to the The first antenna, if the strength of the first received signal is not higher than a strength of the second received signal by a predetermined value, the transmit link remains connected to the second antenna.
  • predetermined value may be set as needed, and is not specifically limited herein.
  • the antenna switching method of the embodiment of the present disclosure further includes the step of: S308, comparing the transmit power and switching of the antenna connected to the transmit link before the handover after the antenna of the transmit link connection is switched. Transmitting power of the antenna connected to the transmission link, if the transmission power of the antenna connected to the transmission link after the handover is higher than the transmission power of the antenna connected to the transmission link before the handover, returning to the state before the handover .
  • the transmission power of the antenna connected to the transmission link after the handover is higher than the transmission power of the antenna connected to the transmission link before the handover, in order to reduce the power The state before the switching of the antenna connected to the transmission link can be restored.
  • FIG. 3 shows a schematic diagram of an antenna switching manner according to an embodiment of the present disclosure.
  • the terminal product includes the first antenna Ant0 and the second antenna Ant1.
  • the first antenna Ant0 is connected to the first RF channel as a primary antenna, and has a transceiving function
  • the second antenna Ant1 serves as an auxiliary antenna. It is connected to the second RF channel and has an auxiliary receiving function.
  • the first RF channel includes a transmit link and a primary receive link
  • the second RF channel includes a secondary receive link.
  • the primary receive link of the first RF channel may be fixedly coupled to the first antenna Ant0, and the transmit link of the first RF channel may be connected to the first antenna Ant0 via an antenna switch (eg, may be a single-pole double-throw (SPDT) switch) Or the second antenna Ant1, the auxiliary receiving link of the second RF channel may be fixedly connected to the second antenna Ant1.
  • an antenna switch eg, may be a single-pole double-throw (SPDT) switch
  • the auxiliary receiving link of the second RF channel may be fixedly connected to the second antenna Ant1.
  • the antenna switching switch can be controlled to switch so that the first radio frequency
  • the transmission link of the channel is connected to the second antenna Ant1, if it is determined that the strength of the signal received by the auxiliary receiving link of the second RF channel via the second antenna Ant1 is not higher than the main receiving link of the first radio channel via the first antenna
  • the strength of the signal received by Ant0, the transmission link of the first RF channel remains connected to the first antenna Ant0.
  • a relatively good antenna can also be selected for transmission according to the receiving performance of the antenna.
  • the insertion loss introduced by the antenna switching switch only has a certain influence on the transmission performance of the terminal product, and when the antenna switching switch is switched. There is no effect on the receiving performance of the antenna.
  • the transmit link of the first radio frequency channel is connected to the second antenna Ant1
  • the strength of the signal received by the auxiliary receiving link of the second RF channel via the second antenna Ant1 may be controlled to switch the antenna switching switch so that the transmitting link of the first RF channel is connected to the first antenna Ant0, if it is determined
  • the strength of the signal received by the primary receiving link of the first radio frequency channel via the first antenna Ant0 is not higher than the strength of the signal received by the auxiliary receiving link of the second radio frequency channel via the second antenna Ant1, then the first radio frequency channel The transmit link remains connected to the second antenna Ant1.
  • the transmit power is returned to the state before the switch if the transmit power of the antenna connected to the transmit link of the first RF channel after the switch is higher than the transmit power of the antenna connected to the transmit link of the first RF channel before the switch.
  • the terminal product including the primary receiving link and the auxiliary receiving link as an example.
  • the present disclosure is not limited thereto.
  • the terminal product may have a multiple input multiple output (MIMO) receiving function, and therefore, Multiple parallel receive links can be included.
  • MIMO multiple input multiple output
  • FIG. 4 shows a block diagram of an antenna switching device in accordance with an embodiment of the present disclosure.
  • the antenna switching apparatus of the embodiment of the present disclosure includes: an obtaining module 52 configured to acquire the strength of the first received signal received by the receiving link connected to the first antenna and the receiving link receiving the second antenna. The strength of the second received signal; the comparing module 54 is configured to compare the strength of the first received signal with the strength of the second received signal; the selecting module 56 is configured to select the transmit link connection according to the comparison result An antenna or the second antenna.
  • the selection module 56 is configured to: if the transmit link is connected to the first antenna, if the strength of the second received signal is higher than the strength of the first received signal Transmitting the transmit link to connect to the second antenna, and if the strength of the second received signal is not higher than the strength of the first received signal, the transmit link remains connected to the a first antenna; if the transmission link is connected to the second antenna, if the strength of the first received signal is higher than the strength of the second received signal, switching the transmit link to Connected to the first antenna, if the strength of the first received signal is not higher than the strength of the second received signal, the transmit link remains connected to the second antenna.
  • the transmitting The link is switched to be connected to the second antenna, and if the strength of the second received signal is not higher than a strength of the first received signal by a predetermined value, the transmit link remains connected to the first antenna; In a case where the transmission link is connected to the second antenna, if the strength of the first received signal is higher than a strength of the second received signal by a predetermined value, the transmitting link is switched to be connected to the The first antenna, if the strength of the first received signal is not higher than a strength of the second received signal by a predetermined value, the transmit link remains connected to the second antenna.
  • predetermined value may be set as needed, and is not specifically limited herein.
  • the selection module 56 of the antenna switching device of the embodiment of the present disclosure is further configured to compare the transmit power of the antenna connected to the transmit link before the handover after the antenna of the transmit link connection is switched. Transmitting power of the antenna connected to the transmission link after the handover, if the transmission power of the antenna connected to the transmission link after the handover is higher than the transmission power of the antenna connected to the transmission link before the handover, returning to the pre-switching status.
  • each of the above modules may be implemented by software, hardware or a combination thereof.
  • each of the above modules may be provided by a program including executable instructions, which are executed by one or more processors to implement corresponding Features.
  • An embodiment of the present disclosure further provides an antenna system including a first antenna, a second antenna, an antenna switch, and a processor, the first antenna being connected to the first receiving link, and the second antenna being connected to the second a receiving link, the first antenna or the second antenna being connectable to the transmitting link via the antenna switching switch, the processor configured to: acquire the first received signal received by the first receiving link via the first antenna An intensity and an intensity of the second received signal received by the second receiving link via the second antenna; comparing an intensity of the first received signal with an intensity of the second received signal; and controlling the antenna switching according to a comparison result The switch is switched such that the transmit link is connected to the first antenna or the second antenna via the antenna switch.
  • the antenna system further includes a first filter and a second filter, the first antenna being connected to the first receiving link via the first filter, and the second antenna
  • the second filter is coupled to the second receive link
  • the transmit link is coupled to the first antenna via the first filter or to the second antenna via the second filter
  • the first filter and the second filter perform filtering processing.
  • the antenna system further includes a power amplifier connected to the first antenna or the second antenna via the power amplifier and the antenna switch.
  • the processor of the antenna system is configured to: if the transmit link is connected to the first antenna, if the strength of the second received signal is higher than the first Receiving the strength of the signal, controlling the antenna switch to switch, so that the transmission link is connected to the second antenna via the antenna switch, if the strength of the second received signal is not higher than the The transmit link remains connected to the first antenna as soon as the strength of the received signal is received; if the transmit link is connected to the second antenna, if the strength of the first received signal is higher than Determining the strength of the second received signal, controlling the antenna switch to switch, so that the transmit link is connected to the first antenna via the antenna switch, if the strength of the first received signal is not higher than The strength of the second received signal, the transmit link remains connected to the second antenna.
  • the processor of the antenna system is configured to: if the transmit link is connected to the first antenna, if the strength of the second received signal is greater than the first receive Controlling, by the predetermined value, the antenna switching switch to switch, so that the transmitting link is connected to the second antenna via the antenna switching switch, if the strength of the second receiving signal is not higher than the first
  • the transmission link remains connected to the first antenna when the strength of the received signal is high, and if the transmission link is connected to the second antenna, if the strength of the first received signal Controlling the antenna switch to switch, such that the transmit link is connected to the first antenna via the antenna switch, if the first receive signal is higher than a predetermined value of the strength of the second received signal
  • the strength of the second received signal is not higher than a predetermined value, and the transmit link remains connected to the second antenna.
  • predetermined value may be set as needed, and is not specifically limited herein.
  • the processor of the antenna system is further configured to: after the switching of the antenna connected to the transmission link, compare the transmit power of the antenna connected to the transmit link before the handover and after the handover The transmission power of the antenna connected to the transmission link is returned to the state before the handover if the transmission power of the antenna connected to the transmission link is higher than the transmission power of the antenna connected to the transmission link before the handover.
  • Embodiments of the present disclosure also provide a storage medium storing a program including executable instructions that are executed to perform an antenna switching method of an embodiment of the present disclosure.
  • the computer readable storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, a magnetic disk, and an optical disk. Wait.
  • FIG. 5 shows a block diagram of a terminal product to which an antenna switching method of an embodiment of the present disclosure is applied.
  • the terminal product 10 to which the antenna switching method of the embodiment of the present disclosure is applied may include the processor 102, the memory 104, and the transmission device 106.
  • the transmission device 106 may include a first antenna connected to the first receiving link, a second antenna connected to the second receiving link, and the first antenna or the second antenna may be connected to the transmitting via the antenna switching switch link.
  • the memory 104 stores a program including executable instructions
  • the processor 102 is configured to execute a program stored by the memory 104 to perform the steps of: acquiring the strength and the first received signal received by the first receiving link via the first antenna Comparing the strength of the second received signal received by the second receiving link via the second antenna; comparing the strength of the first received signal with the strength of the second received signal; and controlling the switching of the antenna switch according to the comparison result So that the transmission link is connected to the first antenna or the second antenna via the antenna switch.
  • terminal product shown in FIG. 5 is merely an example, and it is not intended to limit the disclosure.
  • the end product 10 may include more or fewer components than shown in FIG. 5, or may have a different configuration than that shown in FIG.
  • memory 104 can be remotely located relative to processor 102 and then connected to processor 102 over a network.
  • networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, or a combination thereof.
  • Transmission device 106 can transmit data via a network.
  • the terminal product 10 may be a mobile terminal such as a mobile phone, a set top box, or the like.

Abstract

本公开提供一种天线切换方法、一种天线切换装置、一种天线系统及一种存储介质，所述天线切换方法包括步骤：获取连接第一天线的接收链路接收的第一接收信号的强度和连接第二天线的接收链路接收的第二接收信号的强度；比较所述第一接收信号的强度与所述第二接收信号的强度；以及根据比较结果选择发送链路连接所述第一天线或所述第二天线。

Description

天线切换方法及装置、天线系统、存储介质 技术领域
本公开涉及通信技术领域，具体而言，涉及天线切换方法及装置、天线系统、存储介质。
背景技术
为了满足用户的要求，许多终端产品上设置有天线。然而，天线在不同场景具有不同的性能。例如，为了降低天线辐射对用户的损害，移动终端将具有收发功能的天线设置在移动终端底部，这样用户使用该移动终端接打电话时，天线远离用户头部，用户头部对天线辐射的吸收较少，从而降低了移动终端在大功率发射时对用户头部的损害。然而，由于移动终端底部在大部分情况下被手握住，因此，将天线设置在移动终端底部会导致主天线的性能受到较大的影响。
公开内容
本公开提供一种天线系统，包括第一天线、第二天线、天线切换开关和处理器，其中，所述第一天线连接至第一接收链路，所述第二天线连接至第二接收链路，所述第一天线或所述第二天线经由所述天线切换开关连接至发送链路，所述处理器配置为：获取所述第一接收链路经由所述第一天线接收的第一接收信号的强度和所述第二接收链路经由所述第二天线接收的第二接收信号的强度；比较所述第一接收信号的强度与所述第二接收信号的强度；以及根据比较结果控制所述天线切换开关进行切换，使得所述发送链路经由所述天线切换开关连接所述第一天线或所述第二天线。
本公开还提供一种天线切换方法，包括步骤：获取连接第一天线的接收链路接收的第一接收信号的强度和连接第二天线的接收链路接收的第二接收信号的强度；比较所述第一接收信号的强度与所述 第二接收信号的强度；以及根据比较结果选择发送链路连接所述第一天线或所述第二天线。
本公开还提供一种天线切换装置，包括：获取模块，配置为获取连接第一天线的接收链路接收的第一接收信号的强度和连接第二天线的接收链路接收的第二接收信号的强度；比较模块，配置为比较所述第一接收信号的强度与所述第二接收信号的强度；以及选择模块，配置为根据比较结果选择发送链路连接所述第一天线或所述第二天线。
本公开还提供一种存储介质，存储有包括可执行指令的程序，所述程序被运行时执行本公开提供的天线切换方法。
附图说明
附图用来提供对本公开的进一步解释，构成本公开的一部分，以下结合附图对本公开的实施例进行详细说明，所述实施例及其说明仅用于解释本公开，并不构成对本公开的限定。在附图中：
图1是示出一种天线切换方式的示意图；
图2是示出根据本公开的实施例的天线切换方法的流程图；
图3是示出根据本公开的实施例的天线切换方式的示意图；
图4是示出根据本公开的实施例的天线切换装置的框图；
图5是示出应用本公开的实施例的天线切换方法的终端产品的框图。
具体实施方式
需要说明的是，在不冲突的情况下，本公开的实施例的各特征可以任意组合。
此外，需要说明的是，本公开中的术语“第一”、“第二”仅用于区分相同或相似的对象，而不用于描述特定的顺序，在不需要区分的情况下，可省略术语“第一”、“第二”。
为了使用户在不同场景使用终端产品时均具有较好的体验，终端产品可包括具有收发功能的主天线以及具有辅助接收功能或多入 多出(MIMO)接收功能的辅助天线，并且可具有天线切换功能，以保证终端产品在不同场景均具有较好的射频性能。
图1示出了一种天线切换方式的示意图。如图1所示，假设终端产品包括第一天线Ant0和第二天线Ant1，在默认状态下，第一天线Ant0作为主天线与第一射频通道相连，具有收发功能，第二天线Ant1作为辅助天线与第二射频通道相连，具有辅助接收功能。第一射频通道包括发送链路和主接收链路，第二射频通道包括辅助接收链路。第一天线Ant0可经由天线切换开关(例如，可以为双刀双掷(DPDT)开关)连接至第一射频通道或第二射频通道，第二天线Ant1也可经由所述天线切换开关连接至第一射频通道或第二射频通道。也就是说，第一射频通道的主接收链路和发送链路作为整体可经由所述天线切换开关连接至第一天线Ant0或第二天线Ant1，第二射频通道的辅助接收链路可经由所述天线切换开关连接至第一天线Ant0或第二天线Ant1。在第一天线Ant0与第一射频通道相连、第二天线Ant1与第二射频通道相连的情况下，如果判断第二射频通道的辅助接收链路经由第二天线Ant1接收到的信号的强度高于第一射频通道的主接收链路经由第一天线Ant0接收到的信号的强度(即，第二天线Ant1的接收性能优于第一天线Ant0的接收性能)，则可控制所述天线切换开关进行切换，以使得第一天线Ant0与第二射频通道相连，而第二天线Ant1与第一射频通道相连，从而，第一天线Ant0用于辅助接收功能，第二天线Ant1用于收发功能，以保证移动终端具有较好的射频性能。
利用图1所示的天线切换方式，可以根据天线的接收性能来挑选相对较好的天线，以用于发射。
但是，图1所示的天线切换方式至少存在以下缺陷：(1)天线切换开关所引入的插损对终端产品的接收性能和发射性能都有一定的影响；(2)天线切换开关进行切换时，第一天线Ant0和第二天线Ant1的接收性能存在跳变的现象，因此往往需要重新评估第一天线Ant0和第二天线Ant1的接收性能。
图2是示出根据本公开的实施例的天线切换方法的流程图。如 图2所示，本公开的实施例的天线切换方法包括如下步骤：S302，获取连接第一天线的接收链路接收的第一接收信号的强度和连接第二天线的接收链路接收的第二接收信号的强度；S304，比较所述第一接收信号的强度与所述第二接收信号的强度；以及S306，根据比较结果选择发送链路连接所述第一天线或所述第二天线。
利用本公开的实施例的天线切换方法，仅对连接所述发送链路的天线进行切换，因此只需要在所述发送链路上设置天线切换开关，而无需在所述接收链路上设置天线切换开关，从而避免了天线切换开关引入的插损对接收性能的影响。
而且，利用本公开的实施例的天线切换方法，连接第一天线的接收链路和连接第二天线的接收链路保持不变，因此第一天线Ant0和第二天线Ant1的接收性能不存在跳变的现象。
在一些实施方式中，步骤S306包括：在所述发送链路连接至所述第一天线的情况下，如果所述第二接收信号的强度高于所述第一接收信号的强度，则将所述发送链路切换为连接至所述第二天线，如果所述第二接收信号的强度不高于所述第一接收信号的强度，则所述发送链路保持连接至所述第一天线；在所述发送链路连接至所述第二天线的情况下，如果所述第一接收信号的强度高于所述第二接收信号的强度，则将所述发送链路切换为连接至所述第一天线，如果所述第一接收信号的强度不高于所述第二接收信号的强度，则所述发送链路保持连接至所述第二天线。
在一些实施方式中，在所述发送链路连接至所述第一天线的情况下，如果所述第二接收信号的强度比所述第一接收信号的强度高预定值，则将所述发送链路切换为连接至所述第二天线，如果所述第二接收信号的强度不比所述第一接收信号的强度高预定值，则所述发送链路保持连接至所述第一天线；在所述发送链路连接至所述第二天线的情况下，如果所述第一接收信号的强度比所述第二接收信号的强度高预定值，则将所述发送链路切换为连接至所述第一天线，如果所述第一接收信号的强度不比所述第二接收信号的强度高预定值，则所述发送链路保持连接至所述第二天线。
需要说明的是，所述预定值可以根据需要进行设置，此处不对其进行具体限定。
在一些实施方式中，本公开的实施例的天线切换方法还包括步骤：S308，在所述发送链路连接的天线发生切换后，比较切换前所述发送链路连接的天线的发射功率与切换后所述发送链路连接的天线的发射功率，如果切换后所述发送链路连接的天线的发射功率高于切换前所述发送链路连接的天线的发射功率，则返回至切换前的状态。
也就是说，在所述发送链路连接的天线发生切换后，如果切换后所述发送链路连接的天线的发射功率高于切换前所述发送链路连接的天线的发射功率，为了降低功耗，可以恢复所述发送链路连接的天线发生切换之前的状态。
图3示出了根据本公开的实施例的天线切换方式的示意图。如图3所示，假设终端产品包括第一天线Ant0和第二天线Ant1，在默认状态下，第一天线Ant0作为主天线与第一射频通道相连，具有收发功能，第二天线Ant1作为辅助天线与第二射频通道相连，具有辅助接收功能。第一射频通道包括发送链路和主接收链路，第二射频通道包括辅助接收链路。第一射频通道的主接收链路可固定连接至第一天线Ant0，第一射频通道的发送链路可经由天线切换开关(例如，可以为单刀双掷(SPDT)开关)连接至第一天线Ant0或第二天线Ant1，第二射频通道的辅助接收链路可固定连接至第二天线Ant1。在第一射频通道的发送链路连接至第一天线Ant0的情况下，如果判断第二射频通道的辅助接收链路经由第二天线Ant1接收到的信号的强度高于第一射频通道的主接收链路经由第一天线Ant0接收到的信号的强度(即，第二天线Ant1的接收性能优于第一天线Ant0的接收性能)，则可控制所述天线切换开关进行切换，以使得第一射频通道的发送链路连接至第二天线Ant1，如果判断第二射频通道的辅助接收链路经由第二天线Ant1接收到的信号的强度不高于第一射频通道的主接收链路经由第一天线Ant0接收到的信号的强度，则第一射频通道的发送链路保持连接至第一天线Ant0。
利用图3所示的天线切换方式，也可以根据天线的接收性能来 挑选相对较好的天线，以用于发射。
与图1所示的天线切换方式相比，图3所示的天线切换方式中，天线切换开关所引入的插损仅对终端产品的发射性能有一定的影响，而且，天线切换开关进行切换时对天线的接收性能没有影响。
在一些实施方式中，在第一射频通道的发送链路连接至第二天线Ant1的情况下，如果判断第一射频通道的主接收链路经由第一天线Ant0接收到的信号的强度高于第二射频通道的辅助接收链路经由第二天线Ant1接收到的信号的强度，则可控制所述天线切换开关进行切换，以使得第一射频通道的发送链路连接至第一天线Ant0，如果判断第一射频通道的主接收链路经由第一天线Ant0接收到的信号的强度不高于第二射频通道的辅助接收链路经由第二天线Ant1接收到的信号的强度，则第一射频通道的发送链路保持连接至第二天线Ant1。
当然，在第一射频通道的发送链路连接的天线发生切换后，比较切换前第一射频通道的发送链路连接的天线的发射功率与切换后第一射频通道的发送链路连接的天线的发射功率，如果切换后第一射频通道的发送链路连接的天线的发射功率高于切换前第一射频通道的发送链路连接的天线的发射功率，则返回至切换前的状态。
以上仅以终端产品包括主接收链路和辅助接收链路为例进行了说明，然而，本公开不限于此，在实际应用中，终端产品可具有多入多出(MIMO)接收功能，因此，可包括多个并行的接收链路。
本公开的实施例还提供了一种天线切换装置。图4示出了根据本公开的实施例的天线切换装置的框图。如图4所示，本公开的实施例的天线切换装置包括：获取模块52，配置为获取连接第一天线的接收链路接收的第一接收信号的强度和连接第二天线的接收链路接收的第二接收信号的强度；比较模块54，配置为比较所述第一接收信号的强度与所述第二接收信号的强度；选择模块56，配置为根据比较结果选择发送链路连接所述第一天线或所述第二天线。
在一些实施方式中，所述选择模块56配置为：在所述发送链路 连接至所述第一天线的情况下，如果所述第二接收信号的强度高于所述第一接收信号的强度，则将所述发送链路切换为连接至所述第二天线，如果所述第二接收信号的强度不高于所述第一接收信号的强度，则所述发送链路保持连接至所述第一天线；在所述发送链路连接至所述第二天线的情况下，如果所述第一接收信号的强度高于所述第二接收信号的强度，则将所述发送链路切换为连接至所述第一天线，如果所述第一接收信号的强度不高于所述第二接收信号的强度，则所述发送链路保持连接至所述第二天线。
在一些实施方式中，在所述发送链路连接至所述第一天线的情况下，如果所述第二接收信号的强度比所述第一接收信号的强度高预定值，则将所述发送链路切换为连接至所述第二天线，如果所述第二接收信号的强度不比所述第一接收信号的强度高预定值，则所述发送链路保持连接至所述第一天线；在所述发送链路连接至所述第二天线的情况下，如果所述第一接收信号的强度比所述第二接收信号的强度高预定值，则将所述发送链路切换为连接至所述第一天线，如果所述第一接收信号的强度不比所述第二接收信号的强度高预定值，则所述发送链路保持连接至所述第二天线。
需要说明的是，所述预定值可以根据需要进行设置，此处不对其进行具体限定。
在一些实施方式中，本公开的实施例的天线切换装置的选择模块56还配置为，在所述发送链路连接的天线发生切换后，比较切换前所述发送链路连接的天线的发射功率与切换后所述发送链路连接的天线的发射功率，如果切换后所述发送链路连接的天线的发射功率高于切换前所述发送链路连接的天线的发射功率，则返回至切换前的状态。
需要说明的是，上述各个模块可以通过软件、硬件或其结合来实现，例如，上述各个模块可通过包括可执行指令的程序提供，所述程序由一个或多个处理器执行，以实现相应的功能。
本公开的实施例还提供一种天线系统，所述天线系统包括第一 天线、第二天线、天线切换开关和处理器，第一天线连接至第一接收链路，第二天线连接至第二接收链路，第一天线或第二天线可经由所述天线切换开关连接至发送链路，所述处理器配置为：获取所述第一接收链路经由第一天线接收的第一接收信号的强度和所述第二接收链路经由第二天线接收的第二接收信号的强度；比较所述第一接收信号的强度与所述第二接收信号的强度；以及根据比较结果控制所述天线切换开关进行切换，以使得所述发送链路经由所述天线切换开关连接至所述第一天线或所述第二天线。
在一些实施方式中，所述天线系统还包括第一滤波器和第二滤波器，所述第一天线经由所述第一滤波器连接至所述第一接收链路，所述第二天线经由所述第二滤波器连接至所述第二接收链路，所述发送链路经由所述第一滤波器连接至所述第一天线或者经由所述第二滤波器连接至所述第二天线，所述第一滤波器和所述第二滤波器进行滤波处理。
在一些实施方式中，所述天线系统还包括功率放大器，所述发送链路经由所述功率放大器和所述天线切换开关连接至所述第一天线或所述第二天线。
在一些实施方式中，所述天线系统的所述处理器配置为：在所述发送链路连接至所述第一天线的情况下，如果所述第二接收信号的强度高于所述第一接收信号的强度，则控制所述天线切换开关进行切换，使得所述发送链路经由所述天线切换开关连接至所述第二天线，如果所述第二接收信号的强度不高于所述第一接收信号的强度，则所述发送链路保持连接至所述第一天线；在所述发送链路连接至所述第二天线的情况下，如果所述第一接收信号的强度高于所述第二接收信号的强度，则控制所述天线切换开关进行切换，使得所述发送链路经由所述天线切换开关连接至所述第一天线，如果所述第一接收信号的强度不高于所述第二接收信号的强度，则所述发送链路保持连接至所述第二天线。
在一些实施方式中，所述天线系统的所述处理器配置为：在所述发送链路连接至所述第一天线的情况下，如果所述第二接收信号的 强度比所述第一接收信号的强度高预定值，则控制所述天线切换开关进行切换，使得所述发送链路经由所述天线切换开关连接至所述第二天线，如果所述第二接收信号的强度不比所述第一接收信号的强度高预定值，则所述发送链路保持连接至所述第一天线；在所述发送链路连接至所述第二天线的情况下，如果所述第一接收信号的强度比所述第二接收信号的强度高预定值，则控制所述天线切换开关进行切换，使得所述发送链路经由所述天线切换开关连接至所述第一天线，如果所述第一接收信号的强度不比所述第二接收信号的强度高预定值，则所述发送链路保持连接至所述第二天线。
需要说明的是，所述预定值可以根据需要进行设置，此处不对其进行具体限定。
在一些实施方式中，所述天线系统的所述处理器还配置为：在所述发送链路连接的天线发生切换后，比较切换前所述发送链路连接的天线的发射功率与切换后所述发送链路连接的天线的发射功率，如果切换后所述发送链路连接的天线的发射功率高于切换前所述发送链路连接的天线的发射功率，则返回至切换前的状态。
本公开的实施例还提供一种存储介质，该存储介质存储有包括可执行指令的程序，所述程序被运行时执行本公开的实施例的天线切换方法。
所述计算机可读存储介质可以包括但不限于U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟、光盘等。
图5示出了应用本公开的实施例的天线切换方法的终端产品的框图。如图5所示，应用本公开的实施例的天线切换方法的终端产品10可以包括处理器102、存储器104和传输装置106。
传输装置106可包括第一天线、第二天线，第一天线连接至第一接收链路，第二天线连接至第二接收链路，第一天线或第二天线可经由天线切换开关连接至发送链路。
存储器104存储有包括可执行指令的程序，处理器102配置为执行存储器104存储的程序，以执行以下步骤：获取所述第一接收链路经由第一天线接收的第一接收信号的强度和所述第二接收链路经由第二天线接收的第二接收信号的强度；比较所述第一接收信号的强度与所述第二接收信号的强度；以及根据比较结果控制所述天线切换开关进行切换，以使得所述发送链路经由所述天线切换开关连接至所述第一天线或所述第二天线。
应当理解，图5所示的终端产品仅为示例，其并不对本公开构成限定。例如，终端产品10可包括比图5所示更多或者更少的组件，或者可具有与图5所示不同的配置。
例如，在一些实施方式中，存储器104可相对于处理器102远程设置，然后通过网络连接至处理器102。所述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网或其组合等。传输装置106可经由网络传输数据。
作为示例，终端产品10可以为诸如手机的移动终端、机顶盒等。
本领域的技术人员应该明白，本公开的实施例的各模块或各步骤可以通过软件结合通用的计算装置来实现，它们可以通过单个计算装置实现，或者可以通过分布在多个计算装置上实现，在一些情况下，可以以不同于本文所示的顺序执行所示出或描述的步骤，可以将本公开的实施例的各模块或各步骤分别制作成各个集成电路，或者将它们中的全部或部分集成到单个集成电路来实现。本公开不限制于任何特定形式的硬件和软件的结合。
所描述的实施例仅为本公开的示例实施例，并不旨在限制本公开的范围，对于本领域的技术人员来说，本公开的实施例可以进行各种更改和变化。在不脱离本公开的构思的情况下，所作的任何修改、等同替换均应视为落入本公开的保护范围之内。

Claims (10)

  1. 一种天线系统，包括第一天线、第二天线、天线切换开关和处理器，其中，所述第一天线连接至第一接收链路，所述第二天线连接至第二接收链路，所述第一天线或所述第二天线经由所述天线切换开关连接至发送链路，所述处理器配置为：
    获取所述第一接收链路经由所述第一天线接收的第一接收信号的强度和所述第二接收链路经由所述第二天线接收的第二接收信号的强度；
    比较所述第一接收信号的强度与所述第二接收信号的强度；以及
    根据比较结果控制所述天线切换开关进行切换，使得所述发送链路经由所述天线切换开关连接所述第一天线或所述第二天线。
  2. 根据权利要求1所述的天线系统，还包括第一滤波器和第二滤波器，所述第一天线经由所述第一滤波器连接至所述第一接收链路，所述第二天线经由所述第二滤波器连接至所述第二接收链路，所述发送链路经由所述第一滤波器连接至所述第一天线或者经由所述第二滤波器连接至所述第二天线。
  3. 根据权利要求1所述的天线系统，还包括功率放大器，所述发送链路经由所述功率放大器和所述天线切换开关连接至所述第一天线或所述第二天线。
  4. 根据权利要求1所述的天线系统，其中，所述处理器配置为：
    在所述发送链路连接至所述第一天线的情况下，如果所述第二接收信号的强度高于所述第一接收信号的强度，则控制所述天线切换开关进行切换，使得所述发送链路经由所述天线切换开关连接至所述第二天线，如果所述第二接收信号的强度不高于所述第一接收信号的强度，则所述发送链路保持连接至所述第一天线；以及
    在所述发送链路连接至所述第二天线的情况下，如果所述第一接收信号的强度高于所述第二接收信号的强度，则控制所述天线切换开关进行切换，使得所述发送链路经由所述天线切换开关连接至所述第一天线，如果所述第一接收信号的强度不高于所述第二接收信号的强度，则所述发送链路保持连接至所述第二天线。
  5. 根据权利要求4所述的天线系统，其中，所述处理器还配置为：
    在所述发送链路连接的天线发生切换后，比较切换前所述发送链路连接的天线的发射功率与切换后所述发送链路连接的天线的发射功率，如果切换后所述发送链路连接的天线的发射功率高于切换前所述发送链路连接的天线的发射功率，则返回至切换前的状态。
  6. 一种天线切换处理方法，包括步骤：
    获取连接第一天线的接收链路接收的第一接收信号的强度和连接第二天线的接收链路接收的第二接收信号的强度；
    比较所述第一接收信号的强度与所述第二接收信号的强度；以及
    根据比较结果选择发送链路连接所述第一天线或所述第二天线。
  7. 根据权利要求6所述的方法，其中，根据比较结果选择发送链路连接所述第一天线或所述第二天线的步骤包括：
    在所述发送链路连接至所述第一天线的情况下，如果所述第二接收信号的强度高于所述第一接收信号的强度，则将所述发送链路切换为连接至所述第二天线，如果所述第二接收信号的强度不高于所述第一接收信号的强度，则所述发送链路保持连接至所述第一天线；以及
    在所述发送链路连接至所述第二天线的情况下，如果所述第一接收信号的强度高于所述第二接收信号的强度，则将所述发送链路切换为连接至所述第一天线，如果所述第一接收信号的强度不高于所述 第二接收信号的强度，则所述发送链路保持连接至所述第二天线。
  8. 根据权利要求7所述的方法，还包括步骤：
    在所述发送链路连接的天线发生切换后，比较切换前所述发送链路连接的天线的发射功率与切换后所述发送链路连接的天线的发射功率，如果切换后所述发送链路连接的天线的发射功率高于切换前所述发送链路连接的天线的发射功率，则返回至切换前的状态。
  9. 一种天线切换装置，包括：
    获取模块，配置为获取连接第一天线的接收链路接收的第一接收信号的强度和连接第二天线的接收链路接收的第二接收信号的强度；
    比较模块，配置为比较所述第一接收信号的强度与所述第二接收信号的强度；以及
    选择模块，配置为根据比较结果选择发送链路连接所述第一天线或所述第二天线。
  10. 一种存储介质，存储有包括可执行指令的程序，所述程序被运行时执行根据权利要求6至8中任一项所述的天线切换方法。
PCT/CN2018/095630 2017-07-14 2018-07-13 天线切换方法及装置、天线系统、存储介质 WO2019011330A1 (zh)

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