WO2015154437A1 - Carrier aggregation supporting method and terminal - Google Patents

Carrier aggregation supporting method and terminal Download PDF

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Publication number
WO2015154437A1
WO2015154437A1 PCT/CN2014/089508 CN2014089508W WO2015154437A1 WO 2015154437 A1 WO2015154437 A1 WO 2015154437A1 CN 2014089508 W CN2014089508 W CN 2014089508W WO 2015154437 A1 WO2015154437 A1 WO 2015154437A1
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Prior art keywords
output
frequency
antenna switch
terminal
antenna
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PCT/CN2014/089508
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French (fr)
Chinese (zh)
Inventor
牛慧
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中兴通讯股份有限公司
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Priority to CN201410405132.2 priority Critical
Priority to CN201410405132.2A priority patent/CN105376872A/en
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
Publication of WO2015154437A1 publication Critical patent/WO2015154437A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices

Abstract

Disclosed are a carrier aggregation supporting method and terminal. The terminal comprises a radio frequency front-end device comprising an antenna switch, and also comprises a multiband antenna assembly supporting a number N of working bands and comprising a radiating body, a number N of feeding points and a number N of matching networks; wherein the radiator body is electrically connected with the a number N of feeding points, each of a number N of feeding points is electrically connected with an output end of the antenna switch through a matching network, the antenna switch comprises a number N of output ends, and N is an integer more than or equal to 2.

Description

Method and terminal for supporting carrier aggregation Technical field

The present invention relates to the field of communications, and in particular, to a method and a terminal for supporting carrier aggregation.

Background technique

With the rapid development of communication technologies, the fourth generation of mobile communication represented by LTE is being widely applied, and the demand for the number and throughput of mobile terminals is also increasing. At present, the main demand of mobile communication comes from the rapid development of mobile Internet, especially the development of intelligent terminals has stimulated the surge in mobile communication data traffic. In the future, more types of terminals will be introduced into mobile communication networks. The number of mobile communication terminals will far exceed the population, and data services will become the absolute mainstream.

In order to improve the capacity and data throughput of mobile communication systems, there have been three methods used in the past 30 years: increasing the bandwidth of wireless transmission, improving the spectrum efficiency of wireless transmission links, and increasing cell density. In the current situation of increasingly tight wireless spectrum resources, the need for wider transmission bandwidth will become one of the important factors affecting further evolution. For this reason, the 3rd Generation Partnership Project (3GPP) is in LTE-Advanced. In the system, Carrier Aggregation (CA) technology is proposed to improve the performance of the system uplink and downlink transmission rate.

The CA aggregates multiple consecutive or non-contiguous carriers to form a carrier with a larger bandwidth (for example, the currently supported maximum aggregate bandwidth is 100 MHz) to meet the throughput of User Equipment (UE). Peak rate requirements.

FIG. 1 is a schematic diagram of a conventional RF transmission/reception link that does not support the CA scheme, and includes a baseband integrated circuit (BBIC), a radio frequency integrated circuit (RFICs), and a radio frequency front end. Device and an antenna;

The baseband processing chip is used to synthesize the baseband signal to be transmitted or to decode the baseband signal received from the radio frequency module; at the same time, it is also responsible for controlling and managing the entire terminal, including Timing control, digital system control, man-machine interface management and control, and RF device control.

The radio frequency chip module is configured to transmit to the base station by using multiple component carriers, and receive the wireless signal from the base station; that is, mainly complete modulation of the transmitted digital baseband signal to meet the required radio frequency index for transmission in space; Demodulating the spatially received RF signal to convert it into a digital baseband signal is performed by the baseband chip module to perform related data operations.

The RF front-end device mainly includes a power amplifier (Power Amplifier, abbreviated as PA), a duplexer (Duplexer), and an antenna switch (Switch), which completes amplification and filtering of the transmitted signal, and is transmitted by the antenna after being switched by the antenna; Filtering the signal received by the antenna and then entering the RF chip module for demodulation.

The antenna switch and the antenna are connected via a matching network (Matching Network, MN for short) and an antenna feed point (Antenna Feed Point, FP for short).

On the transmit link, the radio frequency chip modules (RFICs) modulate the baseband signal output by the baseband processing chip (BBIC) onto the high frequency carrier signal, and output a lower power radio frequency signal to the power amplifier PA for RF signal amplification. The output power of the terminal meets the requirements of the 3GPP or the operator. The high-power RF signal output by the PA is sent to the antenna through the antenna switch (Switch), radiated to the free space, and wirelessly communicates with the base station system.

On the receiving link, the antenna transmits the downlink signal transmitted by the base station antenna to the duplexer after passing through the antenna switch, and then reaches the receiving end of the RF transceiver chip through the receiving link, and performs down-conversion and demodulation inside the RF chip. It becomes a baseband signal and is transmitted to the baseband chip for information processing.

In this design, the use of broadband antennas and multi-frequency common antenna feed is often used.

Figure 2 is a schematic diagram of the principle of the current RF transmit/receive link supporting CA. Compared with the conventional scheme that does not support CA, the intermediate frequency/high frequency and low frequency transmit signals are transmitted from the two ports (M/HB, LB) after the main switch. The output is passed through an antenna splitter (Diplexer) added after the main switch, and signals of different frequencies are transmitted through the antenna. For signal reception, and vice versa.

Similar to the traditional RF link, there is still only one antenna here, and all frequency bands are supported by switch switching and Diplexer. This solution requires a wide range of operating frequencies of the wideband antenna.

Currently, terminals supporting carrier aggregation technology have the following problems:

First, the path loss of the wireless link increases. At present, the main RF framework of the system supporting CA is compared with the RF part of the system that does not support CA. A duplexer (Diplexer) is added after the transmission/reception of each frequency band. As shown in Figure 2, the Diplexer itself generates Path Loss; especially at high frequencies, this path loss is still relatively large. The increase in the path loss of the radio link affects the uplink transmit power of the UE and the downlink receive sensitivity of the UE. In the uplink of the wireless communication system, the transmit power of the UE directly affects important indicators such as the performance of the cell edge and the spectrum efficiency of the system; in the downlink of the wireless communication system, the receiving sensitivity of the UE directly affects the user experience and Customer service quality.

Second, interference caused by carrier aggregation. For carrier aggregation in the frequency band, the existing RF architecture is achievable because its RF signal is still in one frequency band, but its bandwidth is wider than the existing widest bandwidth (20MHz), and the spectrum of its signal may be Discontinuous, this will result in increased out-of-band spurs. This means that for the FDD system, duplex with higher isolation is required; for the TDD system, a filter with higher out-of-band rejection is required. For aggregation between bands, the emission (low frequency) harmonics will cause interference to the downstream (high frequency) of the aggregation. For example, when carrier aggregation is required to support two frequency bands (one intermediate frequency and one low frequency), the broadband antenna has poor suppression when the low-frequency transmission is out of band, and the antenna cannot provide better when the harmonic falls within the middle frequency band. Degree of inhibition.

Summary of the invention

The embodiments of the present invention provide a method and a terminal for supporting carrier aggregation, which can save the Dieter on the radio link, which can significantly reduce the path loss of the radio link and improve the radio frequency performance of the terminal.

In order to solve the above technical problem, an embodiment of the present invention provides a terminal supporting carrier aggregation, including a radio frequency front end device, where the radio frequency front end device includes an antenna switch, and further includes a multi-band antenna component, the multi-band antenna The component supports N working frequency bands, and the multi-band antenna assembly includes: a radiator, N feed points, and N matching networks; wherein:

The radiator is electrically connected to the N feeding points, and each of the N feeding points is electrically connected to an output end of the antenna switch through a matching network, the antenna switch includes N outputs, N is an integer greater than or equal to 2.

Optionally, the terminal supports M frequency bands, the antenna switch includes M input ends, and one or more input ends correspond to one output end;

When the terminal is in operation, the N output ends of the antenna switch are connected to the M input terminals in a switching selection or direct connection, and M is greater than or equal to N.

Optionally, the multi-band antenna component supports two working frequency bands, including two feeding points electrically connected to the radiator and two matching networks respectively connected to the two feeding points, and the two matching networks respectively Connected to the first output and the second output of the antenna switch.

Optionally, the terminal supports three frequency bands of a low frequency, an intermediate frequency, and a high frequency, and the antenna switch includes a low frequency input end, an intermediate frequency input end, and a high frequency input end;

When the terminal is in operation, the first output end of the antenna switch is connected to the high frequency input end or the intermediate frequency input end in a switching selection manner, and the second output end of the antenna switch is in communication with the low frequency input end.

Optionally, the multi-band antenna component supports three working frequency bands, including three feeding points electrically connected to the radiator and three matching networks respectively connected to the three feeding points, and the three matching networks respectively Connected to the first output, the second output, and the third output of the antenna switch.

Optionally, the terminal supports three frequency bands of a low frequency, an intermediate frequency, and a high frequency, and the antenna switch includes a low frequency input end, an intermediate frequency input end, and a high frequency input end;

When the terminal is in operation, the first output end of the antenna switch is in communication with the high frequency input end, the second output end of the antenna switch is in communication with the intermediate frequency input end, and the third output end of the antenna switch is The low frequency input is connected.

In order to solve the above technical problem, the embodiment of the present invention further provides a method for supporting carrier aggregation, including:

Adding a multi-band antenna component to a terminal supporting carrier aggregation, the multi-band antenna component supporting N working frequency bands, including: a radiator, N feed points, and N matching networks, where N is an integer greater than or equal to 2;

Electrically connecting the radiator to the N feed points, and electrically connecting each of the N feed points to an output of the antenna switch through a matching network, the antenna Switch includes N outputs.

Optionally, the terminal supports M frequency bands, the antenna switch includes M input ends; and one or more input ends correspond to one output end;

The method further includes: when the terminal is in operation, connecting the N output ends of the antenna switch to the M input ends in a switching selection or direct connection, where M is greater than or equal to N.

Optionally, the multi-band antenna component supports two working frequency bands, and the antenna switch includes: a first output end and a second output end;

The electrically connecting the radiator to the N feed points, and electrically connecting each of the N feed points to an output of the antenna switch through a matching network, including :

The radiator is electrically connected to two feeding points, and two matching networks respectively connected to the two feeding points are respectively connected to the first output end and the second output end of the antenna switch.

Optionally, the terminal supports three frequency bands of a low frequency, an intermediate frequency, and a high frequency, and the antenna switch includes a low frequency input end, an intermediate frequency input end, and a high frequency input end;

The method further includes: when the terminal is in operation, connecting the first output end of the antenna switch to the high frequency input end or the intermediate frequency input end in a switching selection manner, and the second output end of the antenna switch is The low frequency input is connected.

Optionally, the multi-band antenna component supports three working frequency bands, and the antenna switch includes: a first output end, a second output end, and a third output end;

The electrically connecting the radiator to the N feed points, and electrically connecting each of the N feed points to an output of the antenna switch through a matching network, including :

The radiator is electrically connected to three feeding points, and three matching networks respectively connected to the three feeding points are respectively connected to the first output end, the second output end and the third output end of the antenna switch ;

Optionally, the terminal supports three frequency bands of a low frequency, an intermediate frequency, and a high frequency, and the antenna switch includes a low frequency input end, an intermediate frequency input end, and a high frequency input end;

The method further includes: when the terminal is in operation, connecting the first output end of the antenna switch to the high frequency input end, and connecting the second output end of the antenna switch to the intermediate frequency input end, A third output of the antenna switch is in communication with the low frequency input.

The method and terminal for supporting carrier aggregation provided by the embodiments of the present invention can save the Dieter on the radio link by using a multi-band antenna, which can significantly reduce the path loss of the radio link and improve the radio frequency performance of the terminal. When the frequency band of the antenna switch output is divided into a plurality of bands, a multi-band antenna with a finer band division is selected correspondingly, and the operating frequency range (band width) of each of the multi-band antennas is subdivided so that each individual operating band width Narrowing, which can increase the efficiency of each frequency band only within its own operating frequency range, and reduce efficiency outside its own operating frequency range, thereby reducing interference to other bands outside the band, reducing interference that may be caused by carrier aggregation, and thus improving The quality of the communication system.

BRIEF abstract

1 is a schematic diagram of a conventional RF transmitting/receiving link that does not support a CA scheme;

2 is a schematic diagram of a principle of a radio frequency transmitting/receiving link supporting a CA by a related art;

3 is a schematic structural diagram of a terminal supporting a CA in this embodiment;

4 is a schematic structural diagram of a terminal supporting a preferred application example of CA;

5 is a schematic structural diagram of a terminal supporting another preferred application example of CA;

6 is a flow chart of a method of supporting CA in an embodiment.

Preferred embodiment of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

Example:

The terminal supporting carrier aggregation provided in this embodiment utilizes the design of the multi-band antenna, replaces the Triplexer in the terminal, and implements the function of the Diplexer by using the multi-matching network and the multi-feed point. As shown in FIG. 3, the embodiment provides a terminal for supporting carrier aggregation, which includes: a baseband processing chip BBIC, a radio frequency chip module RFICs, and a radio frequency front end device as shown in FIG. a band antenna assembly, the multi-band antenna assembly supporting N operating bands, the multi-band antenna The components include: a radiator, N feed points, and N matching networks;

The radiator is electrically connected to the N feeding points, and each of the N feeding points is electrically connected to an output end of the antenna switch through a matching network, the antenna switch includes N outputs, N is an integer greater than or equal to 2.

The terminal supports M frequency bands, and the antenna switch includes M input ends; one or more input ends correspond to one output end;

Here, the terminal refers specifically to the components connected to the input end of the antenna switch, for example, the baseband processing chip BBIC and the RF chip module RFICs. Since the BBIC and the RFICs support M frequency bands, the signals processed by the BBIC and the RFICs (with M frequency bands) are processed. Input from the input terminals of the M corresponding frequency bands of the antenna switch.

When the terminal is in operation, the N output ends of the antenna switch are connected to the M input terminals in a switching selection or direct connection, and M is greater than or equal to N. Wherein, the communication in the manner of switching selection means that any one of the M input terminals can be connected according to the selection of the frequency band and any one of the N output terminals.

For example, the frequency band supported by the terminal is divided into high frequency (HB), intermediate frequency (MB) and low frequency (LB) according to the radio wave frequency; the antenna switch has two outputs, and the high frequency and the intermediate frequency can be used as one output end (M/ HB), the low frequency is used as an output (LB); or, the antenna switch has 3 outputs, the antenna switch can use the high frequency as an output (HB), the intermediate frequency as an output (MB), and the low frequency as An output (LB). For example, according to the frequency band of the carrier aggregation supported by the terminal, the frequency band outputted by the switch output terminal can be further divided, for example, the low frequency band is 698 to 960 MHz, the middle frequency band is 1710 to 2170 MHz, and the high frequency band is 2300 to 2690 MHz. Of course, the switch output can also output more frequency bands. For example, it can also output 4 signals, 5 different frequency signals, and so on.

The working frequency band of the multi-band antenna component corresponds to an operating frequency band of the antenna switch output signal. That is to say, in this embodiment, the antenna switch has several output ends (ie, corresponding to several working frequency bands), and correspondingly, the multi-band antenna corresponding to the number of output bands of the antenna switch is selected.

In a preferred manner, the multi-band antenna assembly supports two working frequency bands, including two feeding points electrically connected to the radiator and two matching networks respectively connected to the two feeding points, and the two matching networks. Matching networks are respectively connected to the first output and the second output of the antenna switch.

The terminal supports three frequency bands of low frequency, intermediate frequency and high frequency, and the antenna switch comprises a low frequency input end, an intermediate frequency input end and a high frequency input end;

When the terminal is in operation, the first output end of the antenna switch is connected to the high frequency input end or the intermediate frequency input end in a switching selection manner, and the second output end of the antenna switch is in communication with the low frequency input end.

In another preferred manner, the multi-band antenna assembly supports three working frequency bands, including three feeding points electrically connected to the radiator and three matching networks respectively connected to the three feeding points, and the three matching networks. The matching networks are respectively connected to the first output, the second output and the third output of the antenna switch.

The terminal supports three frequency bands of low frequency, intermediate frequency and high frequency, and the antenna switch comprises a low frequency input end, an intermediate frequency input end and a high frequency input end;

When the terminal is in operation, the first output end of the antenna switch is in communication with the high frequency input end, the second output end of the antenna switch is in communication with the intermediate frequency input end, and the third output end of the antenna switch is The low frequency input is connected.

In this embodiment, the antenna switch selects which output terminal the carrier signal is output from, so as to determine the corresponding antenna feeding point; the corresponding radiator of the multi-band antenna connected to the feeding point and the multi-band antenna connected thereto radiates the signal, The radiated signal operates on the corresponding frequency band of the multi-band antenna.

In addition, the reception and transmission of signals are similar for the antenna. Because of the different feed points, the radiators corresponding to the antenna traces are different. For example, the multi-band antenna utilizes the parasitic strip 1 to cooperate with the radiating branch 1 to extend the bandwidth of the multi-band antenna to receive the low-band signal to enhance its ability to receive low-band signals; the parasitic strip 2 is coupled to the radiating branch 2, Extending the bandwidth of the multi-band antenna to receive the mid-band signal to enhance its ability to receive the mid-band signal; and the multi-band antenna cooperates with the radiating branch 3 using the parasitic strip 3 to extend the multi-band antenna to receive the high-band signal Bandwidth to enhance its ability to receive high frequency band signals. Therefore, the multi-band antenna has a wider receiving range and a stronger receiving capability. The design of the multi-band antenna radiator is prior art and will not be described further herein.

In this embodiment, a multi-band antenna can have characteristics of multiple operating frequency bands, and multiple feeders are designed. Point, different signals are transmitted/received from different feed points, directly corresponding to different ports of the antenna switch. That is, in the carrier aggregation system, the function implemented by the Diplexer on the radio frequency link is completed by the multi-band antenna component, thereby eliminating the Diplexer, reducing the path loss of the radio link, and improving the radio frequency performance of the terminal.

4 and 5 are schematic diagrams of terminal structures of two preferred application examples supporting CA.

In one application example, as shown in Figure 4, the antenna switch has two outputs, a high/intermediate frequency (M/HB) output and a low frequency (LB) output, using a multi-band antenna supporting two frequency bands, two The matching network and two feed points are used to support the IF/HF and LF, respectively. On the one hand, the Diplexer in the current terminal CA scheme can be omitted, the radio link path loss can be reduced, and the radio frequency performance of the terminal can be improved; on the other hand, since the multi-band antenna is used, the operating frequency range of each frequency band is narrow, so The degree of suppression outside the bandwidth is increased, thereby reducing interference that may occur between different frequency bands during carrier aggregation.

In another application example, as shown in FIG. 5, similar to the scheme of FIG. 4, only the antenna switch has three output terminals, a high frequency (HB) output terminal, an intermediate frequency (MB) output terminal, and a low frequency (LB) output terminal. In this application example, the design of the multi-band antenna band is further refined, and three bands are used to support the high frequency, the intermediate frequency, and the low frequency, respectively. In the carrier aggregation, the transmission signals of each carrier are output from different ports through the antenna switch, and then sent to different antenna feeding points, radiated to the free space via the antenna, and wirelessly communicate with the base station system; and the received signals are different. After receiving the different ports of the antenna switch, the antenna feed point is sent to the receiving link. In this way, while reducing the path loss of the wireless link, the antenna performance can be optimized to make the operating frequency range of each frequency band narrower. By optimizing the performance of each frequency band within its own bandwidth, the interference outside the bandwidth is smaller, thereby optimizing the reduction of interference between different frequency bands during carrier aggregation.

As shown in FIG. 6, this embodiment provides a method for supporting carrier aggregation, including the following steps:

S101: Add a multi-band antenna component to a terminal supporting carrier aggregation, where the multi-band antenna component supports N working frequency bands, including: a radiator, N feed points, and N matching networks, where N is greater than or equal to 2. Integer

S102: electrically connecting the radiator to the N feeding points, and electrically connecting each of the N feeding points to an output end of the antenna switch through a matching network. The antenna switch includes N outputs.

The terminal supports M frequency bands, and the antenna switch includes M input ends; one or more input ends correspond to one output end; the terminal here refers specifically to a component connected to the antenna switch input end, for example, a baseband Processing chip BBIC and RF chip module RFICs;

The method further includes: when the terminal is in operation, connecting the N output ends of the antenna switch to the M input ends in a switching selection or direct connection, where M is greater than or equal to N.

In a preferred manner, the multi-band antenna assembly supports two working frequency bands, and the antenna switch includes: a first output end and a second output end;

The electrically connecting the radiator to the N feed points, and electrically connecting each of the N feed points to an output of the antenna switch through a matching network, including :

The radiator is electrically connected to two feeding points, and two matching networks respectively connected to the two feeding points are respectively connected to the first output end and the second output end of the antenna switch.

The terminal supports three frequency bands of low frequency, intermediate frequency and high frequency, and the antenna switch comprises a low frequency input end, an intermediate frequency input end and a high frequency input end;

The method further includes: when the terminal is in operation, connecting the first output end of the antenna switch to the high frequency input end or the intermediate frequency input end in a switching selection manner, and the second output end of the antenna switch is The low frequency input is connected.

In another preferred manner, the multi-band antenna assembly supports three working frequency bands, and the antenna switch includes: a first output end, a second output end, and a third output end;

The electrically connecting the radiator to the N feed points, and electrically connecting each of the N feed points to an output of the antenna switch through a matching network, including :

The radiator is electrically connected to three feeding points, and three matching networks respectively connected to the three feeding points are respectively connected to the first output end, the second output end and the third output end of the antenna switch ;

The terminal supports three frequency bands of low frequency, intermediate frequency and high frequency, and the antenna switch comprises a low frequency input end, an intermediate frequency input end and a high frequency input end;

The method further includes: when the terminal is in operation, connecting the first output end of the antenna switch to the high frequency input end, and connecting the second output end of the antenna switch to the intermediate frequency input end, A third output of the antenna switch is in communication with the low frequency input.

It can be seen from the foregoing embodiment that the method and terminal for supporting carrier aggregation provided in the foregoing embodiments can eliminate the Triplexer on the radio frequency link by using a multi-band antenna, which can significantly reduce the path loss of the radio link. To improve the radio frequency performance of the terminal; secondly, when the frequency band of the antenna switch output is divided into multiple, correspondingly select a multi-band antenna with a finer band division, and the operating frequency range (band width) of each of the multi-band antennas is subdivided. In order to narrow the width of each individual operating frequency band, the efficiency of each frequency band can be improved only within the range of its own operating frequency range, and the efficiency is reduced outside the range of its own operating frequency, thereby reducing interference to other bands outside the band and reducing carrier aggregation. Interference that may be caused, thereby improving the quality of the communication system.

Industrial applicability

The method and terminal for supporting carrier aggregation provided by the embodiments of the present invention can save the Dieter on the radio link by using a multi-band antenna, which can significantly reduce the path loss of the radio link and improve the radio frequency performance of the terminal. When the frequency band of the antenna switch output is divided into a plurality of bands, a multi-band antenna with a finer band division is selected correspondingly, and the operating frequency range (band width) of each of the multi-band antennas is subdivided so that each individual operating band width Narrowing, which can increase the efficiency of each frequency band only within its own operating frequency range, and reduce efficiency outside its own operating frequency range, thereby reducing interference to other bands outside the band, reducing interference that may be caused by carrier aggregation, and thus improving The quality of the communication system.

Claims (12)

  1. A terminal supporting carrier aggregation, comprising a radio frequency front end device, the radio frequency front end device comprising an antenna switch, the terminal further comprising a multi-band antenna component, the multi-band antenna component supporting N working frequency bands, the multi-band antenna component Including: radiator, N feed points and N matching networks;
    The radiator is electrically connected to the N feeding points, and each of the N feeding points is electrically connected to an output end of the antenna switch through a matching network, the antenna switch includes N outputs, N is an integer greater than or equal to 2.
  2. The terminal of claim 1 wherein:
    The terminal supports M frequency bands, and the antenna switch includes M input ends; one or more input ends correspond to one output end;
    When the terminal is in operation, the N output ends of the antenna switch are connected to the M input terminals in a switching selection or direct connection manner, and M is greater than or equal to N.
  3. The terminal of claim 1 wherein:
    The multi-band antenna assembly supports two working frequency bands, and the multi-band antenna assembly includes two feeding points electrically connected to the radiator and two matching networks respectively connected to the two feeding points, the two matching A network is coupled to the first output and the second output of the antenna switch, respectively.
  4. The terminal of claim 3 wherein:
    The terminal supports three frequency bands of low frequency, intermediate frequency and high frequency, and the antenna switch comprises a low frequency input end, an intermediate frequency input end and a high frequency input end;
    When the terminal is in operation, the first output end of the antenna switch is connected to the high frequency input end or the intermediate frequency input end in a switching selection manner, and the second output end of the antenna switch is in communication with the low frequency input end.
  5. The terminal of claim 1 wherein:
    The multi-band antenna assembly supports three working frequency bands, and the multi-band antenna assembly includes three feeding points electrically connected to the radiator and three matching networks respectively connected to the three feeding points, and the three matching networks The matching networks are respectively connected to the first output, the second output and the third output of the antenna switch.
  6. The terminal of claim 5 wherein:
    The terminal supports three frequency bands of low frequency, intermediate frequency and high frequency, and the antenna switch comprises a low frequency input end, an intermediate frequency input end and a high frequency input end;
    The first output end of the antenna switch is in communication with the high frequency input end, the second output end of the antenna switch is in communication with the intermediate frequency input end, and the third output end of the antenna switch is Connected to the low frequency input.
  7. A method of supporting carrier aggregation, comprising:
    A multi-band antenna assembly is provided in a terminal supporting carrier aggregation, the multi-band antenna assembly supporting N working frequency bands, the multi-band antenna assembly comprising: a radiator, N feed points, and N matching networks, where N is greater than Or an integer equal to 2;
    Electrically connecting the radiator to the N feed points, and electrically connecting each of the N feed points to an output of the antenna switch through a matching network, the antenna The switch includes N outputs.
  8. The method of claim 7 wherein:
    The terminal supports M frequency bands, the antenna switch includes M input ends; one or more input ends correspond to one output end;
    The method further includes: when the terminal is in operation, connecting the N output ends of the antenna switch to the M input terminals in a switching selection or direct connection manner, where M is greater than or equal to N.
  9. The method of claim 7 wherein:
    The multi-band antenna assembly supports two working frequency bands, and the antenna switch includes: a first output end and a second output end;
    The electrically connecting the radiator to the N feed points, and electrically connecting each of the N feed points to an output of the antenna switch through a matching network, including :
    The radiator is electrically connected to two feeding points, and two of the two feeding points are respectively connected A distribution network is coupled to the first output and the second output of the antenna switch, respectively.
  10. The method of claim 9 wherein:
    The terminal supports three frequency bands of a low frequency, an intermediate frequency and a high frequency, and the antenna switch comprises a low frequency input end, an intermediate frequency input end and a high frequency input end;
    The method further includes: when the terminal is in operation, connecting the first output end of the antenna switch to the high frequency input end or the intermediate frequency input end in a switching selection manner, and the second output end of the antenna switch Connected to the low frequency input.
  11. The method of claim 6 wherein:
    The multi-band antenna assembly supports three working frequency bands, and the antenna switch includes: a first output end, a second output end, and a third output end;
    The electrically connecting the radiator to the N feed points, and electrically connecting each of the N feed points to an output of the antenna switch through a matching network, including :
    The radiator is electrically connected to three feeding points, and three matching networks respectively connected to the three feeding points are respectively connected to the first output end, the second output end and the third output end of the antenna switch .
  12. The method of claim 11 wherein:
    The terminal supports three frequency bands of a low frequency, an intermediate frequency and a high frequency, and the antenna switch comprises a low frequency input end, an intermediate frequency input end and a high frequency input end;
    The method further includes: when the terminal is in operation, connecting a first output end of the antenna switch to the high frequency input end, and connecting a second output end of the antenna switch to the intermediate frequency input end, The third output end of the antenna switch is in communication with the low frequency input end.
PCT/CN2014/089508 2014-08-15 2014-10-24 Carrier aggregation supporting method and terminal WO2015154437A1 (en)

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CN201410405132.2A CN105376872A (en) 2014-08-15 2014-08-15 Method and terminal supporting carrier aggregation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105978600A (en) * 2015-11-13 2016-09-28 乐视移动智能信息技术(北京)有限公司 Processor and mobile terminal for supporting carrier aggregation

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108540147B (en) * 2016-05-03 2020-03-10 Oppo广东移动通信有限公司 Anti-harmonic interference device for carrier aggregation, antenna device and mobile terminal
CN107482303A (en) * 2016-06-08 2017-12-15 中兴通讯股份有限公司 Terminal device multiaerial system and terminal device method for transmitting signals
CN106129588B (en) * 2016-06-28 2019-06-14 Oppo广东移动通信有限公司 The carrier wave polymerization antenna and mobile terminal of alien frequencies section
CN106207473A (en) * 2016-06-28 2016-12-07 广东欧珀移动通信有限公司 The carrier aggregation antenna of alien frequencies section and mobile terminal
CN106252845A (en) * 2016-07-22 2016-12-21 宇龙计算机通信科技(深圳)有限公司 A kind of antenna, carrier radio frequency circuit, terminal and carrier polymerizing method
CN106100647B (en) * 2016-07-29 2019-02-12 Oppo广东移动通信有限公司 Radio circuit, antenna assembly and mobile terminal
CN106301462B (en) 2016-08-02 2017-08-25 广东欧珀移动通信有限公司 Radio frequency control circuit and mobile terminal
CN106301400A (en) * 2016-08-15 2017-01-04 青岛海信移动通信技术股份有限公司 A kind of radio frequency front-end device and circuit signal control method
CN106487415A (en) * 2016-09-22 2017-03-08 宇龙计算机通信科技(深圳)有限公司 A kind of RF front-end circuit and communication terminal
CN106341150B (en) * 2016-10-12 2019-07-16 Oppo广东移动通信有限公司 The radio circuit and mobile terminal of carrier wave polymerization
CN107069241B (en) * 2017-03-06 2020-05-26 联想(北京)有限公司 Carrier aggregation radio frequency circuit and method therefor
CN107070483B (en) * 2017-03-20 2019-12-03 Oppo广东移动通信有限公司 Radio circuit and terminal
CN106877898B (en) * 2017-03-30 2019-10-29 联想(北京)有限公司 A kind of carrier wave polymerization processing circuit, signal processing method and electronic equipment
CN107171672A (en) * 2017-05-10 2017-09-15 广东欧珀移动通信有限公司 A kind of radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment
CN107070485A (en) * 2017-05-10 2017-08-18 广东欧珀移动通信有限公司 Radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment
CN107104683A (en) * 2017-05-10 2017-08-29 广东欧珀移动通信有限公司 A kind of radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment
CN110546906A (en) * 2017-05-10 2019-12-06 Oppo广东移动通信有限公司 Radio frequency circuit switch chip, radio frequency circuit, antenna device and electronic equipment
CN107196668A (en) * 2017-06-19 2017-09-22 广东欧珀移动通信有限公司 Radio frequency switching circuit chip, radio circuit, antenna assembly and electronic equipment
CN107359894A (en) * 2017-06-30 2017-11-17 广东欧珀移动通信有限公司 Radio circuit, antenna assembly and electronic equipment
CN107565530A (en) * 2017-08-31 2018-01-09 广东欧珀移动通信有限公司 Electrostatic protection apparatus, radio circuit and electronic equipment
CN107565529A (en) * 2017-08-31 2018-01-09 广东欧珀移动通信有限公司 Electrostatic protection apparatus, radio circuit and electronic equipment
CN107453344A (en) * 2017-08-31 2017-12-08 广东欧珀移动通信有限公司 Electrostatic protection apparatus, radio circuit and electronic equipment
CN107425876A (en) * 2017-08-31 2017-12-01 广东欧珀移动通信有限公司 Electrostatic protection apparatus, radio circuit and electronic equipment
CN108768433A (en) * 2018-05-22 2018-11-06 Oppo广东移动通信有限公司 Radio circuit and electronic equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101212230A (en) * 2006-12-26 2008-07-02 中兴通讯股份有限公司 Device and method for implementing DVB-H antenna matching network for mobile telephone
US20130314294A1 (en) * 2012-05-23 2013-11-28 Cho-Yi Lin Portable communication apparatus
CN103579757A (en) * 2012-07-24 2014-02-12 华为终端有限公司 Method for changing operating frequency of antenna, antenna and terminal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102136624A (en) * 2010-11-22 2011-07-27 华为终端有限公司 Antenna and terminal with same
CN103928751A (en) * 2014-04-11 2014-07-16 广东欧珀移动通信有限公司 Mobile phone and antenna thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101212230A (en) * 2006-12-26 2008-07-02 中兴通讯股份有限公司 Device and method for implementing DVB-H antenna matching network for mobile telephone
US20130314294A1 (en) * 2012-05-23 2013-11-28 Cho-Yi Lin Portable communication apparatus
CN103579757A (en) * 2012-07-24 2014-02-12 华为终端有限公司 Method for changing operating frequency of antenna, antenna and terminal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105978600A (en) * 2015-11-13 2016-09-28 乐视移动智能信息技术(北京)有限公司 Processor and mobile terminal for supporting carrier aggregation

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