WO2012163201A1

WO2012163201A1 - Mode separation method and device

Info

Publication number: WO2012163201A1
Application number: PCT/CN2012/074585
Authority: WO
Inventors: 王煜; 秦芳; 杨喜; 郭月飞; 周闯柱
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-05-27
Filing date: 2012-04-24
Publication date: 2012-12-06
Also published as: CN102801437A

Abstract

Disclosed are a mode separation device and method. The device comprises a mode separation control module, a first-stage antenna switch and a second-stage antenna switch. The first-stage antenna switch is connected to the second-stage antenna switch through a designated port. The mode separation control module gates a port of a corresponding antenna switch according to a network mode of a terminal. When a port of the first-stage antenna switch other than the designated port is gated, a radio frequency signal of a corresponding network mode is transmitted through the gated port of the first-stage antenna switch and an antenna. When a port of the second-stage antenna switch is gated, a radio frequency signal of a corresponding network mode is transmitted through the gated port of the second-stage antenna switch, the designated port of the first-stage antenna switch and the antenna. With the technical solution of the present invention, mode separation and compatibility can be realized.

Description

Mode separation method and device

Technical field

The present invention relates to the field of mobile terminals, and in particular, to a mode separation method and apparatus.

Background technique

With the rapid development of the global telecommunications market, 3G networks have been widely promoted, and currently it is a transition from 2G to 2G/3G multimode to 3G/4G. Different markets are unevenly developed, and different markets require different needs and different network coverage. The multi-port output switch SP9T or SP10T currently used cannot be freely selected under the effective mode requirements, and causes cost and board support package (BSP) resources to be wasted.

From the rate of 3G Wideband Code Division Multiple Access (WCDMA) to the downlink packet access DPA (Downlink Packet Access) / Uplink Packet Access UPA (Uplink Packet Access) uplink 5.72 Mbps, downlink 21 Mbps to Dual carrier uplink 11 Mbps, downlink 42 Mbps, and LTE (Long Term Evolution), the extremely high rate gives users a faster and faster rate experience. As a result, compatibility with the next level, as well as the performance requirements of wireless terminals, is increasing, and mode compatibility requirements are becoming more demanding. The current mode separation mainly relies on the control of more advanced antenna switches, which has the following defects: 1 affecting the utilization of resources, 2. The isolation requirement of the device is high.

Summary of the invention

The technical problem to be solved by the present invention is to provide a mode separation method and device, which realizes separation of various network modes and improves compatibility.

In order to solve the above problems, the present invention uses the following technical solutions:

A mode separating device, comprising: a mode separation control module, a first stage antenna switch and a second stage antenna switch connected to the mode separation control module, a designated port of the first stage antenna switch and the second The level antenna switches are connected, wherein: the mode separation control module is configured to: strobe the corresponding day according to the network mode in which the terminal is located Line switch port;

The first stage antenna switch is configured to: when the mode separation control module gates a port other than the designated port, transmit the radio frequency of the corresponding network mode by using the strobe port and the antenna of the first stage antenna switch Signal

The second stage antenna switch is configured to: when the mode separation control module strobes a port, pass the strobe port of the second stage antenna switch, a designated port and an antenna of the first stage antenna switch Transmit the RF signal of the corresponding network mode.

Optionally, the mode separation control module is further configured to: output N1 control signals to the first-stage antenna switch, and output N2 control signals to the second-stage antenna switch, where N1 and N2 are both An integer less than one;

The mode separation control module is configured to strobe the corresponding antenna switch port according to the network mode in which the terminal is located according to the following manner: according to the network mode in which the terminal is located, setting the control signals according to a preset logical relationship, and selecting Passing a port of the first stage antenna switch other than the designated port; or strobing a port of the second stage antenna switch and strobing the designated port of the first stage antenna switch.

Optionally, the mode separation control module includes a control module, a power switch module Pi connected to the control module, i=l, 2, and the power switch module Pi is connected to the i-th antenna switch;

The control module controls the power on and off of the ith stage antenna switch by controlling the turning on and off of the power switch module Pi;

The control module outputs Ni control signals to the i-th antenna switch, i=l, 2, Ni is an integer not less than one;

The control module is configured to strobe the corresponding antenna switch port according to the network mode in which the terminal is located according to the following mode: controlling the power switch module P1 and turning on the first-stage antenna switch according to the network mode in which the terminal is located, Setting each of the control signals according to a preset logical relationship, and stroking a port of the first-stage antenna switch except the designated port; or controlling the power switch modules P1 and P2 according to a network mode in which the terminal is located; Turning on the first stage antenna switch and the second stage antenna switch, setting each control signal according to a preset logic relationship, strobing a port of the second stage antenna switch, and strobing the first stage The designated port of the antenna switch. Optionally, the first power switch module and the power switch module Pi are MOS tubes. Optionally, the control signals output to the antenna switches of the stages are partially multiplexed.

Optionally, the mode separation control module is configured to strobe the corresponding antenna switch port according to the network mode in which the terminal is located in the following manner:

When the network mode of the terminal is 3G or 4G, stroking a port of the first-stage antenna switch except the designated port;

When the network mode of the terminal is 2G, one port of the second-stage antenna switch is strobed and the designated port of the first-stage antenna switch is strobed.

A mode separation method, comprising:

According to the network mode in which the terminal is located, a port other than the designated port of the first-stage antenna switch is strobed, and the radio frequency signal of the corresponding network mode is transmitted through the strobe port and the antenna of the first antenna switch; or

And strobing a port of the second-stage antenna switch and strobing the designated port of the first-stage antenna switch according to a network mode in which the terminal is located, by using a strobe port of the second-stage antenna switch, The designated port and antenna of the first antenna switch transmit radio frequency signals of the corresponding network mode.

Optionally, the step of strobing a port other than the designated port of the first-stage antenna switch according to the network mode in which the terminal is located includes: setting the output to the preset according to the preset network relationship according to the network mode of the terminal a control signal of the first stage antenna switch and the second stage antenna switch, and stroking a port of the first stage antenna switch except the designated port;

The step of strobing a port of the second-stage antenna switch and the strobing the designated port of the first-stage antenna switch according to the network mode in which the terminal is located includes:

Setting a control signal output to the first-stage antenna switch and the second-stage antenna switch according to a preset logic relationship according to a network mode in which the terminal is located, and strobing a port of the second-stage antenna switch and The designated port of the first stage antenna switch is gated.

Optionally, the channel mode is selected according to the network mode in which the terminal is located, except for the designated port of the first-stage antenna switch. The step of the one port includes: controlling the power switch module P1 according to the network mode in which the terminal is located, turning on the first stage antenna switch, setting each control signal according to a preset logic relationship, and stroking the first stage antenna a port of the switch other than the designated port;

The step of strobing a port of the second-stage antenna switch and the strobing the designated port of the first-stage antenna switch according to the network mode in which the terminal is located includes: controlling the first power source according to a network mode in which the terminal is located The switch modules P1 and P2 are configured to turn on the first stage antenna switch and the second stage antenna switch, set each control signal according to a preset logic relationship, and strobe a port of the second stage antenna switch and the strobe The designated port of the first stage antenna switch.

Optionally, the first power switch module and the second power switch module are MOS tubes. Optionally, the step of strobing a port other than the designated port of the first-stage antenna switch according to the network mode in which the terminal is located includes: when the network mode of the terminal is 3G or 4G, stroking the a port of the first stage antenna switch except the designated port;

The step of strobing a port of the second-stage antenna switch and the strobing the designated port of the first-stage antenna switch according to the network mode in which the terminal is located includes: when the network mode of the terminal is 2G, A port of the second stage antenna switch is strobed and the designated port of the first stage antenna switch is strobed.

The above technical solution can achieve mode separation and improve compatibility.

BRIEF abstract

Figure 1 is a block diagram of a device for mode separation by a two-stage switch;

Figure 2 is an implementation of mode separation, implemented by control logic;

FIG. 3 is another implementation of mode separation, implemented by conductive gating; FIG. 4 is a flow chart of mode separation method;

Figure 5 shows the application scenario of the entire system.

Preferred embodiment of the invention In order to make the objects, the technical solutions and the advantages of the present invention more clearly, the 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. These combinations are all within the scope of the invention.

The present invention provides a mode separating apparatus, comprising: a mode separation control module, and a two-stage antenna switch connected to the mode separation control module, wherein a designated port of the first stage antenna switch is connected to the second stage antenna switch, wherein :

The mode separation control module is configured to strobe a corresponding antenna switch port according to a network mode in which the terminal is located;

The first stage antenna switch is configured to: when the port other than the designated port is strobed, transmit the radio frequency signal of the corresponding network mode by using the strobe port and the antenna of the first stage antenna switch; For example, the RF signal of the corresponding network mode is radiated through the first-stage antenna switch and the antenna, or the RF signal of the corresponding network mode is received through the antenna, and then transmitted to the baseband through the first-stage antenna switch.

The second stage antenna switch is configured to: when strobing a port, transmit a radio frequency signal of a corresponding network mode by using a strobe port of the second stage antenna switch, a designated port of the first stage antenna switch, and an antenna. Specifically, it includes radio frequency signal transmission and reception.

There are two ways to do this:

method one

The mode separation control module directly controls the two-stage antenna switch through the control signal.

The mode separation control module outputs N1 control signals to the first stage antenna switch, and outputs N2 control signals to the second stage antenna switch;

The mode separation control module is configured to set the control signals according to a preset logical relationship according to a network mode in which the terminal is located, and strobe a port of the first-stage antenna switch except the designated port, or Passing through a port of the second stage antenna switch and strobing the designated port of the first stage antenna switch.

The mode separation control module can be located on the baseband IC. Method Two

The mode separation control module controls the power of the antenna switch to turn on or off the corresponding antenna switch, and strobes the port of the antenna switch through the control signal.

The mode separation control module includes a control module, a power switch module Pi connected to the control module, i=l, 2, and the power switch module Pi is connected to the i-th antenna switch;

The control module outputs Ni control signals to the i-th antenna switch, i=l, 2;

The control module is configured to control the power switch module P1 according to the network mode in which the terminal is located, and turn on the first-stage antenna switch. At this time, the power of the second-stage antenna switch is non-conductive, according to a preset logical relationship. Setting each of the control signals to strobe a port of the first-stage antenna switch except the designated port; or, according to the network mode in which the terminal is located, controlling the power switch modules P1 and P2, turning on the first-stage antenna switch and The secondary antenna switch sets the control signals according to a preset logical relationship, strobes a port of the second-stage antenna switch, and gates the designated port of the first-stage antenna switch.

The power switch module Pi is a MOS tube. The power is supplied to the corresponding antenna switch through the MOS tube. When the MOS tube is not turned on, the antenna switch has no power supply and is never turned on.

Wherein, the control signals output to the antenna switches of the stages are partially multiplexed.

When the network mode of the terminal is 3G or 4G, the first-stage antenna switch is strobed to a port other than the designated port, and when the network mode of the terminal is 2G, the strobe is performed. a port of the secondary antenna switch, and the designated port of the first stage antenna switch. Other network modes are also not limited by the present invention.

The control module can be located on the baseband IC.

The invention also provides a mode separation method, comprising:

And strobing a port of the first-stage antenna switch except the designated port according to the network mode in which the terminal is located, and transmitting the radio frequency signal of the corresponding network mode by using the strobe port and the antenna of the first antenna switch; or Selecting a port of the second-stage antenna switch according to a network mode in which the terminal is located, and strobing the designated port of the first-stage antenna switch, and passing through the strobe port of the second-stage antenna switch The designated port and the antenna of the first antenna switch transmit radio frequency signals of the corresponding network mode. Specifically, the radio frequency signal is transmitted and received. Taking the radio frequency signal output as an example, according to the network mode in which the terminal is located, the first-stage antenna switch is strobed a port other than the designated port, and the radio frequency signal of the corresponding network mode is passed through the first An antenna switch is output to the antenna; a port of the second-stage antenna switch is strobed, and the designated port of the first-stage antenna switch is strobed, and the radio frequency signal of the corresponding network mode is passed through the second-stage antenna switch And outputting the designated port of the first antenna switch to the antenna.

The port of the first-stage antenna switch or the second-stage antenna switch is strobed as follows: according to a network mode in which the terminal is located, setting the output to the first-stage antenna switch and the second according to a preset logical relationship Each control signal of the stage antenna switch, stroking a port of the first stage antenna switch except the designated port, or strobing a port of the second stage antenna switch, and strobing the first stage antenna switch The specified port.

The port of the first-stage antenna switch or the second-stage antenna switch is strobed as follows: according to the network mode in which the terminal is located, the power switch module P1 is controlled, and the first-stage antenna switch is turned on according to a preset logic. Setting the respective control signals to strobe a port of the first-stage antenna switch except the designated port; or, according to the network mode in which the terminal is located, controlling the power switch modules P1 and P2, turning on the first-stage antenna switch and The second stage antenna switch sets the control signals according to a preset logic relationship, strobes a port of the second stage antenna switch, and gates the designated port of the first stage antenna switch. Among them, the on/off of the antenna switches of each stage is controlled by controlling the on or off of the MOS tube.

The following description will be made by controlling the antenna switch by the baseband IC.

Figure 1 is a block diagram of the mode separation device. It only contains one antenna. The two switches, Switch1 and Switch2, are cascaded in series. Switch 2 acts as the rear stage of Switch 1, and completes the transmission and reception of the 2G part. The two switches are controlled by a power management integrated circuit (PM IC) and a baseband integrated circuit (Baseband IC).

2 is an embodiment of a method 1 for mode separation, selecting a first stage switch (switch 1 in the figure) One of the output ports (port portx shown in Figure 2) acts as the input to the second stage switch (switch 2 in the figure), port x is connected to the common port of the second stage antenna switch, and the common port is the antenna switch to The output port of the antenna, usually connected to the antenna. In this embodiment, the Baseband IC needs to output five control signals as control signals for the two switches. The first stage switch requires three control signals, and the second stage switch requires four control signals, two of which are multiplexed. Of the five control signals, four are the antenna switch strobe logic control signals Ant-Ctrl signal, which in turn is Ant_ctrll-4, and the other one controls the 2G signal in the receiving or transmitting state-one TX-enabled signal. For example, when the TX-Enceive signal is high, it is in the 2G transmission state, and when the TX-Enceive signal is low, it is in the 2G reception state. In another embodiment, six control signals Ant_Ctrl are used as the antenna switch strobe logic control signals, which are Ant_Ctrl 1-6, three of which are used for logic control of the first stage switch, and three are used as the first Logic control of the secondary switch.

FIG. 3 is a specific implementation manner of the mode separation method 2. The system includes a baseband IC, a radio frequency integrated circuit (RF IC), a radio frequency front end (RFE, RF Front end), and a metal oxide semiconductor field effect transistor (Mosfetl, referred to as a MOS tube). ) and Mosfet2, PM IC, antenna switch and antenna, the antenna switch includes switch 1 and switch 2, where:

Baseband IC, mainly provides port parameter configuration, triggering and enabling of control signals;

The RF IC performs processing such as baseband domain processing and frequency conversion of the signal, and outputs the signal to the front end of the RF transmission; after the RF transmission front end completes the amplification and separation of the signal, it outputs to the antenna switch; after the signal passes through the antenna switch, it is output to the antenna, and is radiated through the antenna. Go out.

The PM IC mainly completes the output of the power supply and supplies power to each active module. Among them, the PM IC is connected to the switch 1 through Mosfetl and to the switch 2 through Mosfet2.

In this embodiment, by adding a MOSFET between the two switching power supplies and the switch, the two control signals output by the Baseband IC control the conduction of the MOSFET, thereby selecting the antenna switch, for example, if in the 3G/4G mode. Turn on MOSFET 1 and turn on MOSFET1 and MOSFET2 in 2G mode. Of course, it is also possible to turn on MOSFET 1 and MOSFET 2 in 3G/4G mode and turn on MOSFET 1 in 2G mode. The PART 1 part of Figure 3 can be removed as needed.

4 is a flow chart of a mode separation method according to the present invention. The 2G and 3G/4G network modes are taken as an example, and other network modes are similar, including: Step 401: The terminal starts, and the parameter configuration of each port is completed, and the network selection operation is performed.

Step 402, determining whether the current network mode is in 3G/4G mode, if yes, performing step 403, if it is 2G mode, performing step 405;

Step 403: The baseband IC enables and triggers the control signal of the Switch 1 according to the preset logical relationship, or controls the power of the Switch1, turns on the Switch 1, and strobes the Switch according to the preset logical relationship. a port outside the designated port;

Step 404, the 3G/4G signal is transmitted to the antenna through a port of the selected Switch1, and ends; Step 405, the baseband IC triggers the control signal of the Switch 1, strobing the designated port for the input of the Switch 2; and controlling the Switch 2 at the same time Sing a port according to a preset logical relationship; or,

Control the power of Switch 1 and Switch 2, switch Switch 1 and Switch 2, and strobe the designated port of Switch 1 according to the preset logical relationship; strobe a port of Switch 2;

Step 406: The 2G signal is transmitted to the antenna through the selected port of Switch2 and the designated port of Switch1, and ends.

After that, the device works in this mode state. When the device performs the switchover, the parameters are configured according to the corresponding logical relationship to implement the switchover.

Figure 5 shows the application scenario of this device. The 2G, 3G/4G or 2G/3G/4G terminals can be used for mode separation using the mode separation method provided by the present invention, based on the mode separation system design of the present invention.

The embodiments of the present invention can be applied to WCDMA/DPA/UPA, 2G, and LTE multimode systems.

2G/3G/4G multimode and 3G/4G multimode systems, single 2G systems, single 3G systems, etc. Embodiments of the present invention provide a method for upgrading and cost optimizing terminal products.

Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps Implemented as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

Industrial applicability

The above technical solution can achieve mode separation and improve compatibility. Therefore, the present invention has strong industrial applicability.

Claims

Claim

A mode separation device, comprising: a mode separation control module, a first stage antenna switch and a second stage antenna switch connected to the mode separation control module, a designated port of the first stage antenna switch and the The second stage antenna switch is connected, wherein: the mode separation control module is configured to: strobe a corresponding antenna switch port according to a network mode in which the terminal is located;

2. The mode separating device according to claim 1, wherein

The mode separation control module is further configured to: output N1 control signals to the first stage antenna switch, and output N2 control signals to the second stage antenna switch, where N1 and N2 are integers not less than 1 ;

The mode separation device according to claim 1, wherein the mode separation control module comprises a control module, a power switch module Pi connected to the control module, i=l, 2, and the power switch module Pi and The i-th antenna switch is connected;

The control module outputs Ni control signals to the ith stage antenna switch, i=l, 2, Ni is an integer not less than 1; The control module is configured to strobe the corresponding antenna switch port according to the network mode in which the terminal is located according to the following mode: controlling the power switch module P1 and turning on the first-stage antenna switch according to the network mode in which the terminal is located, Setting each of the control signals according to a preset logical relationship, and stroking a port of the first-stage antenna switch except the designated port; or controlling the power switch modules P1 and P2 according to a network mode in which the terminal is located; Turning on the first stage antenna switch and the second stage antenna switch, setting each control signal according to a preset logic relationship, strobing a port of the second stage antenna switch, and strobing the first stage The designated port of the antenna switch.

The mode separating device according to claim 3, wherein the first power switch module and the power switch module Pi are MOS tubes.

The mode separating apparatus according to claim 2, 3 or 4, wherein the control signals outputted to the antenna switches of the stages are partially multiplexed.

The mode separating apparatus according to any one of claims 1 to 4, wherein the mode separating control module is configured to strobe a corresponding antenna switch port according to a network mode in which the terminal is located in the following manner:

7. A mode separation method, comprising:

8. The mode separating method according to claim 7, wherein

The step of strobing a port other than the designated port of the first stage antenna switch according to the network mode in which the terminal is located includes: Setting, according to a preset network relationship, a control signal outputted to the first-stage antenna switch and the second-stage antenna switch according to a network mode in which the terminal is located, and stroking the first-stage antenna switch except the specified a port outside the port;

9. The mode separating method according to claim 7, wherein

The step of strobing a port other than the designated port of the first-stage antenna switch according to the network mode in which the terminal is located includes: controlling the power switch module P1 according to the network mode in which the terminal is located, and turning on the first-stage antenna a switch, setting each control signal according to a preset logical relationship, and stroking a port of the first-stage antenna switch except the designated port;

10. The mode separating method according to claim 9, wherein the first power switch module and the second power switch module are MOS tubes.

The mode separating method according to any one of claims 7 to 10, wherein the step of strobing a port other than the designated port of the first-stage antenna switch according to the network mode in which the terminal is located includes: When the network mode in which the terminal is located is 3G or 4G, stroking a port of the first-stage antenna switch except the designated port;