WO2013017035A1

WO2013017035A1 - Working method of multimode device and multimode device

Info

Publication number: WO2013017035A1
Application number: PCT/CN2012/079199
Authority: WO
Inventors: 陈代挺
Original assignee: 华为终端有限公司
Priority date: 2011-08-04
Filing date: 2012-07-26
Publication date: 2013-02-07
Also published as: CN102264158A; CN102264158B

Abstract

The present invention relates to the field of communications. Disclosed are a working method of a multimode device and the multimode device, allowing for reduced interference during communication between different communication modes. The working method of the multimode device comprises: determining an operating frequency band at a current location of a first communication mode and a current operating channel of a second communication mode; evaluating a mutual interference between each channel in the operating frequency band at the current location of the first communication mode and the current operating channel of the second communication mode; selecting, on the basis of the evaluation result, an operating channel to be used by the first communication mode in the operating frequency band at the current location; and using the operating channel selected for the first communication mode to perform communication of the first communication mode. The present invention also provides the multimode device. The present invention is applicable in multimode communications.

Description

Multimode device working method and multimode device

The present application claims priority to Chinese Patent Application No. 201110222758.6, entitled "Working Method and Multimode Device for Multimode Devices", filed on August 4, 2011, the entire contents of which are incorporated herein by reference. In the application. TECHNICAL FIELD The present invention relates to the field of wireless communications, and more particularly to a method of operating a multimode device and a multimode device.

Background technique

DECT (Digital Enhanced Cordless Telephone) is a digital communication standard used primarily in home and small office environments. It originated in Europe and has been adopted by most countries in Europe, Australia, Asia and South America. Among them, DECT operates in the 1880MHz-1930MHz band, uses the 1880MHz-1900MHz band in Europe, and uses the 1920MHz-1930MHz band in the United States. In Latin America, the 1910MHz-1930MHz band is used. In Europe and the Americas, since the frequency bands used by GSM (such as GSM (Global System for Mobile Communications), WCDMA (Wideband Code Division Multiple Access)) are close to or overlap with the DECT band, in devices where GSM and DECT coexist, when When you need to use the two to communicate, the two will cause more serious interference, affecting data interaction.

The prior art is mainly implemented by hardware isolation when solving the interference problem between GSM and DECT, for example, placing the GSM antenna and the DECT antenna as far as possible, or using a suitable filter to ensure that the passband is in its own frequency range. Inside, the stop band is in the range of the interference band.

Although the above hardware isolation method can reduce the interference, in the case where the working frequency band corresponding to the current working channel of the GSM is adjacent to the DECT working frequency band itself, the working frequency band corresponding to the current working channel of the GSM and the DECT operating frequency band itself are Interference will cause interference, the above hardware partition The method of separation still cannot effectively solve the interference problem between GSM and DECT.

Summary of the invention

Embodiments of the present invention provide a multimode device operating method and a multimode device capable of effectively solving interference problems between different communication modes during communication.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

An aspect of the present invention provides a method of operating a multimode device, including:

Determining a current working channel of the first communication mode in the current working frequency band and the second communication mode;

Evaluating mutual interference between each channel of the first communication mode and the current working channel of the second communication mode;

Determining, according to a result of the evaluating, a working channel used by the first communication mode in the current working frequency band, so that the selected working channel of the first communication mode and the second communication mode are selected The interference between the current working channels is less than the interference between the other channels of the first communication mode in the current working frequency band and the current working channel of the second communication mode;

Communication of the first communication mode is performed using the selected working channel of the first communication mode.

An aspect of the present invention provides a multimode device, including:

a determining unit, configured to determine a current working frequency band of the first communication mode and a current working channel of the second communication mode;

An evaluation unit, configured to evaluate mutual interference between each channel of the first communication mode in a current working frequency band and a current working channel of the second communication mode;

a selecting unit, configured to select, according to a result of the evaluating, a working channel used by the first communication mode in the current working frequency band, so that the selected working channel of the first communication mode is The interference between the current working channels of the second communication mode is less than the first communication Interference between a mode of the other channel in the currently operating frequency band and a current working channel of the second communication mode;

And a communication unit, configured to perform communication in the first communication mode by using the selected working channel of the first communication mode.

The embodiment of the present invention determines mutual interference between each channel in the current working frequency band and the current working channel in the second communication mode by using the first communication mode, and selects the first communication mode. The communication with the channel with the smallest interference of the second communication mode working channel can effectively reduce the interference between different communication modes during communication, thereby effectively ensuring the communication quality of the multi-mode device and significantly improving the user experience. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the description of the embodiments will be briefly described. It is obvious that the drawings in the following description are only some implementations of the present invention. For example, other drawings may be obtained from those skilled in the art without any inventive labor.

1 is a flow chart of a working method of a multimode device according to an embodiment of the present invention;

2 is another flow chart of a method for operating a multimode device according to an embodiment of the present invention;

3 is another flow chart of a method for operating a multimode device according to an embodiment of the present invention;

4 is another flow chart of a method for operating a multimode device according to an embodiment of the present invention;

FIG. 5 is a structural block diagram of a multimode device according to an embodiment of the present invention; FIG.

6 is a structural block diagram of an evaluation unit in a multimode device according to an embodiment of the present invention;

7 is a structural block diagram of a determining module in a multimode device according to an embodiment of the present invention;

FIG. 8 is another structural block diagram of an evaluation unit in a multimode device according to an embodiment of the present invention.

detailed description

The technical solutions of the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and Not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the present invention provides a working method of a multi-mode device. The multi-mode device includes at least two communication modes: a first communication mode and a second communication mode. As shown in FIG. 1, the method includes:

51 1 . Determine a current working channel of the first communication mode in the current working frequency band and the second communication mode;

512. The mutual interference between each channel in the current working frequency band and the current working channel in the second communication mode is evaluated.

513. Select, according to a result of the evaluating, a working channel used by the first communication mode in the current working frequency band, so that the selected working channel of the first communication mode and the second The interference between the current working channels of the communication mode is smaller than that of the first communication mode between the other channels in the current working frequency band and the current working channel of the second communication mode;

514. Perform communication of the first communication mode by using the selected working channel of the first communication mode.

The embodiment of the present invention determines mutual interference between each channel in the current working frequency band and the current working channel in the second communication mode by using the first communication mode, and according to the evaluation result, selecting the The first communication mode is a channel that is less interfered with the current working channel of the second communication mode in the current working frequency band, as the working channel used, so that the selected selected working channel is in communication with another When the mode is simultaneously communicating, the interference of another communication mode is small, so that the communication quality of the multimode device can be effectively ensured, and the user experience is obviously improved.

Optionally, in an embodiment of the present invention, the evaluating, in S12, the first communication mode is between each channel in the current working frequency band and a current working channel in the second communication mode. The mutual interference includes:

Determining, if the first communication mode uses each channel in the currently operating frequency band, whether the radio frequency signal amplifier component of the second communication mode works normally; Evaluating a mutual channel between the channel in the current operating frequency band in which the radio frequency signal amplifier component of the second communication mode operates normally, and the current working channel in the second communication mode interference.

In this way, by determining whether the radio frequency signal amplifier component of the second communication mode is working normally, the radio frequency signal amplifier of the second communication mode in the current operating frequency band of the first communication mode can be selected. A channel that works normally, thereby ensuring the reliability of communication in the second communication mode.

Further, the determining, if the first communication mode uses each channel in the current working frequency band, whether the radio frequency signal amplifier component of the second communication mode works normally may specifically include:

Determining a transmit power of the first communication mode and an attenuation of the transmit power;

Determining, if the first communication mode uses a first channel in the currently operating frequency band, a maximum normal received power of the second communication mode and a maximum power allowed by a radio frequency signal amplifier component of the second communication mode;

Calculating a result of the sum of the first communication mode transmission power, the attenuation of the transmission power, and the maximum normal reception power of the second communication mode;

Determining whether the result of the calculation is less than a maximum power allowed by the radio frequency signal amplifier component of the second communication mode;

If the result of the determination is less than, determining that the first communication mode uses the first channel, the radio frequency signal amplifier component of the second communication mode operates normally.

Thereby, determining whether the sum of the first communication mode transmission power, the first communication mode transmission power attenuation amount, and the second communication mode maximum normal reception power is smaller than the radio frequency of the second communication mode The maximum power allowed by the signal amplifying device can ensure that the radio frequency signal amplifier component of the second communication mode works normally when the first communication mode is transmitted, that is, the transmission of the first communication mode does not generate the second communication mode. The larger impact ensures both the transmission of the first communication mode and the normal communication of the second communication mode, thereby effectively improving the user body. Test.

Optionally, in an embodiment of the present invention, the evaluating, by the first communication mode, a mutual channel between each channel in the current working frequency band and a current working channel in the second communication mode Interference can specifically include:

Determining, if the first communication mode uses each channel in the currently operating frequency band, the first communication mode transmitting the spurs and the first generated in the working frequency band corresponding to the current working channel of the second communication mode The attenuation amount of the transmission power of the communication mode;

Determining a working frequency band corresponding to a current working channel of the second communication mode;

When the first communication mode is used to use each channel in the current working frequency band, the first communication mode transmits a spur generated in a working frequency range corresponding to a current working channel of the second communication mode. a result of a sum of a product of a working frequency band corresponding to a current working channel of the second communication mode and an attenuation amount of the transmitting power of the first communication mode;

According to the result of the evaluating, selecting a working channel used by the first communication mode in the currently working frequency band includes:

According to the result of the calculation, the channel corresponding to the minimum value of the calculation result is selected as the working channel used by the first communication mode in the currently operating frequency band.

The evaluation mode, by evaluating the influence of the first communication mode transmission on the second communication mode reception, enables the second communication mode when the first communication mode uses the channel selected in the current working frequency band The receiving effect is small, thereby ensuring the receiving sensitivity of the second communication mode by reducing the interference, and without increasing the amount of calculation.

In another embodiment, the evaluating the mutual interference between each channel of the first communication mode in the current working frequency band and the current working channel of the second communication mode may include:

Determining, if the first communication mode uses each channel in the currently operating frequency band, the second communication mode transmission is generated within a working frequency band corresponding to the channel of the first communication mode a spur and an attenuation amount of the second communication mode transmission power; Determining a working frequency band corresponding to the channel of the first communication mode; calculating, when the first communication mode uses each channel in the current working frequency band, the second communication mode is transmitted in the The product of the spur generated in the operating frequency band corresponding to the channel of the first communication mode and the operating band bandwidth corresponding to the channel of the first communication mode and the attenuation of the second communication mode transmission power The result of the sum;

Such an evaluation manner, by specifically evaluating the impact of the second communication mode transmission on the reception of the first communication mode, enables the second communication to be performed when the first communication mode uses the channel selected in the currently operating frequency band The influence of the mode is small, thereby ensuring the receiving sensitivity of the first communication mode by reducing the interference, and without increasing the amount of calculation.

In still another embodiment, the mutual interference between each channel of the first communication mode and the current working channel of the second communication mode in the first communication mode may be further included:

Determining, if the first communication mode uses each channel in the currently working frequency band, the first communication mode transmitting a miscellaneous generated in a working frequency band corresponding to a current working channel of the second communication mode Dispersing an attenuation amount of the first communication mode transmission power, the second communication mode transmitting a spur generated in a working frequency band corresponding to the channel of the first communication mode, and the second communication mode The amount of attenuation of the transmitted power;

Determining a working frequency band corresponding to a current working channel of the second communication mode and a working frequency band corresponding to the channel of the first communication mode;

Calculating, if the first communication mode uses each channel in the currently working frequency band, the first communication mode transmitting a miscellaneous generated in a working frequency band corresponding to a current working channel of the second communication mode Dispersing the working frequency band corresponding to the current working channel of the second communication mode a sum W1 of the product of the bandwidth and the attenuation amount of the first communication mode transmission power, and a spur of the second communication mode transmitting within the operating frequency band corresponding to the channel of the first communication mode a sum of a product of a working frequency band corresponding to the channel of the first communication mode and an attenuation of a transmission power of the second communication mode;

Calculating a sum of the W1 and W2 if the first communication mode uses each of the currently operating frequency bands;

According to the result of calculating the sum of W1 and W2, the channel corresponding to the minimum value of the calculation result is selected as the working channel used by the first communication mode in the currently operating frequency band.

Such an evaluation manner, by specifically evaluating the impact of the first communication mode transmission on the reception of the second communication mode, enabling the second communication to be performed when the first communication mode uses the channel selected in the currently operating frequency band The receiving effect of the mode is small, thereby ensuring the receiving sensitivity of the second communication mode, and specifically evaluating the influence of the second communication mode transmission on the reception of the first communication mode, enabling the current work to be used in the first communication mode. When the channel selected in the frequency band is less affected by the second communication mode, the receiving sensitivity of the first communication mode is also ensured, so that both the first communication mode and the second communication mode can be normally performed with less interference. Communication.

In order to better understand the technical solutions employed in the embodiments of the present invention, the present invention will be described in more detail below by way of specific embodiments of the working method of the multimode device of the present invention.

In the following description of the specific embodiments, the first communication mode is an enhanced digital cordless telephone system DECT, and the second communication mode is GSM as an example. It is to be noted that the following description of DECT and GSM is for the purpose of better understanding of the present invention and is not intended to be limiting. Obviously, the first communication mode and the second communication mode may also be other communication standards. For example, the present invention may also be applied to the case where the first communication mode is DECT and the second communication mode is other mobile communication standards (for example, WCDMA, etc.). . The working method of the multimode device provided in this embodiment, as shown in FIG. 2, includes:

521. Determine a working frequency band corresponding to the current working frequency band of the DECT and the current working channel of the GSM;

522. Determine, according to each channel in the channel corresponding to the working frequency band in which the DECT is currently located, a maximum normal receiving power Pn1 under the current working channel of the GSM and a maximum power Pmax1 allowed by the RF signal amplifying device of the GSM, for the current work of the DECT. Determine the transmit power Pt1 of DECT for each channel in the frequency band;

The maximum power allowed by the GSM RF signal amplifier component is the maximum power of the GSM RF signal amplifier component. When the maximum power is exceeded, the GSM RF signal amplifier component is not working properly, which may result in GSM communication. Interrupt

523. Determine whether the DECT transmit power plus the attenuation amount is plus whether the GSM maximum normal receive power is less than a maximum power allowed by the GSM RF signal amplifier component; that is, determine whether the following formula is established.

Pt1 +Lp1 +Pn1 < Pmaxl ( 1 )

524. If the determination result is true, the channel corresponding to the determination result is set to be the channel selected when calculating the interference with the current working channel of the GSM.

By determining whether (1) the equation Pt1 + Lp1 + Pn < Pmax1 holds, and when the establishment is selected, the channel corresponding to the determination result is established, and when calculating the interference with the current working channel of the GSM, the selected channel, Thereby ensuring that the selected channel can ensure that the GSM RF signal amplifier component works normally, that is, to ensure normal communication;

525, for the selected channel in (1) of S24, determining that the DECT transmits the spurs N1 generated in the working frequency range corresponding to the current working channel of the GSM, and the working frequency band bandwidth K1 corresponding to the current working channel of the GSM. DECT emission power attenuation amount Lp1;

The spur generated by the DECT in the working frequency range corresponding to the current working channel of the GSM is obtained by the actual test equipment. In the case of GSM, the working frequency band corresponding to the current working channel of the GSM is 200 kHz, that is, K1. =200; DECT transmit power attenuation is included in The amount of attenuation caused by space and the amount of attenuation caused by hardware isolation, where the amount of attenuation due to free space

Lp can be calculated using the following free space attenuation formula:

£ = -- 2A 20 g( ) -" 20 g( )

Where d is the distance between signal transmission and signal reception, in kilometers, f is the frequency of the transmitted signal, in megahertz, and the attenuation caused by hardware isolation (eg, adding shielding, isolation plates, etc. between the antennas) The amount needs to be determined in practice according to the application environment.

526. Determine whether the spur generated by the DECT transmission in the working frequency range corresponding to the current working channel of the GSM is multiplied by the bandwidth of the working frequency band corresponding to the current working channel of the GSM, and whether the attenuation of the DECT transmission power is added. Less than or equal to the specified threshold value M1 of the spur within the working frequency range corresponding to the current working channel of the GSM; that is, whether the following formula is established,

N1 K1 +Lp1 < M1 ( 2 )

1\/11 is preferably -170 0^ 2 [<1, of course, depending on the case, and may also be -160 (or other value) dB/Hz K1;

527. If the judgment result of the above formula (2) is satisfied, the value of N1 X K1 + Lp1 is calculated, and the channels are sorted according to the calculated value, and the calculated minimum value is sequentially selected. The channel is a DECT working channel;

528, performing DECT communication by using the selected working channel of the DECT; when the channel corresponding to the calculated minimum value is unavailable, sequentially selecting a channel corresponding to the next value of the calculated minimum value to work as DECT channel;

When GSM is switched to WCDMA or other mobile communication standard, the above steps are re-executed to reselect the DECT working channel.

In the embodiment of the present invention, the equation corresponding to (1) is selected, and the channel corresponding to the normal operation of the GSM RF signal amplifier component is selected, and then the value of N1 K1 + Lp1 is calculated by judging whether the formula (2) is established or not. And sorting the channels according to the calculated value, and sequentially selecting the channel corresponding to the calculated minimum value as the DECT working channel, which can ensure normal communication of GSM, When the DECT transmission causes the spurious to fall into the receiving frequency band corresponding to each channel of the GSM current working channel DECT, the power is small, that is, the transmission of the DECT generates less interference to the current working channel of the GSM, and reduces the GSM and DECT during communication. Interference between.

Another working method of the multi-mode device provided in this embodiment, as shown in FIG. 3, includes:

531, determining that the DECT is in the current working frequency band;

532. Determine, according to each channel in the channel corresponding to the working frequency band in which the DECT is currently located, a GSM transmit power Pt2 and a maximum power Pmax2 allowed by the RF signal amplifying device of the DECT, for each channel in the working frequency band in which the DECT is currently located. Determining the maximum normal received power Pn2 of the DECT under the channel;

533. Determine whether the GSM transmit power Pt2 plus the attenuation amount Lp2 of the GSM transmit power, and then whether the DECT maximum normal receive power Pn2 is less than a maximum power Pmax2 allowed by the DECT RF signal amplifier component; Determine whether the following formula is true

Pt2+Lp2+Pn2 < Pmax2 ( 3 )

534. If the formula (4) is satisfied, the channel corresponding to the determination result is selected as the channel selected when calculating the interference with the current working channel of the GSM.

In this way, by determining whether the equation (3) Pt2+Lp2+Pn2 < Pmax2 holds, and when the equation (3) is established, the channel corresponding to the determination result is established, and the calculation is performed with the current working channel of the GSM. When interfering, the selected channel can ensure the normal operation of the DECT RF signal amplifier component, thereby ensuring that the selected channel can make the DECT RF signal amplifier component work normally.

535. Determine, according to formula (3) in S24, a selected channel, determine a spurt N2 generated in a working frequency range corresponding to the channel of the DECT, and a working frequency band bandwidth K2 corresponding to the channel of the DECT. The attenuation amount of GSM transmission power Lp2;

The attenuation of GSM transmit power includes the amount of attenuation caused by free space and the amount of attenuation caused by hardware isolation. The amount of attenuation Lp caused by free space can be calculated by using the following free space attenuation formula. • = -32.4 -- 20 g(/) -- 20 gf ) , where _d is the distance between signal transmission and signal reception, in kilometers, f is the frequency of the transmitted signal, in megahertz, and hardware isolation The amount of attenuation caused by (for example, adding shielding, isolation boards, etc. between antennas) needs to be determined in practice according to the application environment.

536. Determine, by the GSM transmission, a spurt N2 generated in a working frequency range corresponding to the channel of the DECT multiplied by a working frequency band bandwidth K2 corresponding to the channel of the DECT, and then add the GSM transmit power attenuation. Whether the quantity Lp2 is less than or equal to the specified threshold value M2 of the spur within the working frequency range corresponding to the channel of the DECT; that is, whether the following formula is established

N2 K2+ Lp2 < M2 (4)

M2 is preferably -170 dB / Ηζ χ K2, of course, depending on the case, or -160 (or other value) dB / Hz K2;

537, if the formula (4) is established, calculating the value of Ν2 χ Κ2+ Lp2, and sorting the channels according to the calculated value, and sequentially selecting the channel corresponding to the calculated minimum value as the DECT working channel;

538. Perform DECT communication by using the selected working channel of the DECT. When the channel corresponding to the calculated minimum value is unavailable, sequentially select a channel corresponding to the next value of the calculated minimum value to work as DECT. channel;

When the GSM changes, the above steps are re-executed to reselect the DECT working channel.

In the embodiment of the present invention, the equation (3) is selected, and the channel corresponding to the normal operation of the radio frequency signal amplifier of the DECT is selected, and then it is judged whether (4) where Ν2 χ Κ 2+ Lp2 M2 is established, and the judgment result is (4) When the formula is established, the value of Ν2 χ K2+ Lp2 is calculated, and the channels are sorted according to the calculated value, and the channel corresponding to the calculated minimum value is selected as the DECT working channel, which can ensure the normal communication of DECT. The power of the GSM transmission to generate spurs falling into the receiving frequency range corresponding to each channel of the GSM current working channel DECT is small, that is, the GSM transmission generates less interference to the current working channel of the DECT, and reduces the GSM and DECT during communication. Dry Disturb.

In this way, by determining whether (4) the equation Pt2+Lp2+Pn2 < Pmax2 holds, and when the equation (2) is established, the channel corresponding to the determination result is established, and the calculation is performed with the current working channel of the GSM. When interfering, the selected channel can ensure the normal operation of the DECT RF signal amplifier component, thereby ensuring that the selected channel can make the DECT RF signal amplifier component work normally.

The working method of the multimode device provided in this embodiment, as shown in FIG. 4, includes:

541. Determine a working frequency band corresponding to the current working frequency band of the DECT and the current working channel of the GSM;

542. Determine, for each channel in the channel corresponding to the working frequency band in which the DECT is currently located, a maximum normal received power under the current working channel of the GSM and a maximum allowed power of the GSM RF signal amplifier component, for the working frequency band in which the DECT is currently located. For each channel in the channel, determine the transmit power of DECT and the attenuation of DECT transmit power; determine the transmit power of GSM and the attenuation of GSM transmit power and the maximum power allowed by the RF signal amplifier component of DECT, for the current work of DECT For each channel in the frequency band, determine the maximum normal received power of the DECT under the channel;

543, judging (1) ^Pt1 +Lp1 +Pn < Pmax1 is established and (3) Formula Pt2+Lp2+Pn2 < Pmax2 is established;

544. If the judgment result is that both (1) and (3) are satisfied, the channel corresponding to the determination result is selected as the channel corresponding to the calculation, and the selected channel is used when calculating the interference with the current working channel of the GSM;

By judging whether (1) Formula Pt1 + Lp1 + Pn < Pmaxl and (3) Formula Pt2+Lp2+Pn2 < Pmax2 holds, and when both (1) and (3) are satisfied, these judgment results are selected. The channel corresponding to the time is used to calculate the channel used for calculating the interference with the current working channel of the GSM; so that the selected channel can ensure the normal operation of the GSM RF signal amplifier and the DECT RF signal amplifier The pieces work normally.

545. Determine, according to the channel selected in S44, the DECT transmission in the current working channel of the GSM. The spurs N 1 generated in the corresponding working frequency range, the bandwidth K1 of the working frequency band corresponding to the current working channel of the GSM, and the attenuation amount Lp1 of the transmitting power of the DECT; meanwhile, in the channel corresponding to the current working frequency band of the DECT Each channel of the GSM transmits a spurt N2 generated in a working frequency range corresponding to the channel of the DECT, an operating band bandwidth K2 corresponding to the current working channel of the GSM, and an attenuation amount Lp2 of the GSM transmitting power;

546, judging (2) Formula N1 X K1+Lp1 M1 and (4) Formula N2 χ K2+ Lp2 M2 is established; wherein, M1, M2 are preferably -170 dB / Ηζχ K1 or K2, of course, depending on the situation, Can also be -160 (or other value) dB / ΗζχΚΙ or K2;

547, if S43, (2) Formula N1 X K1+Lp1 M1 and (4) Formula Ν2χ K2+ Lp2 M2 are all true, calculate the value of (2) Formula N1 X K1+Lp1, and according to the calculated value, The first sorting of these values; and calculating the value of Ν2χ K2+ Lp2 in (4), and sorting the values a second time according to the calculated value;

548. Calculate, for each channel of the DECT, the sum of the value calculated in the first sorting and the value calculated in the second sorting, and sort by size, and select the sum of the channels in the DECT channel to be the minimum. The corresponding channel is a DECT working channel;

549. Perform communication of DECT by using the selected working channel of the DECT. When the channel corresponding to the minimum value of the DECT channel is unavailable, the sum of the channels of the DECT is selected to be the minimum. The channel corresponding to the next value is the DECT working channel;

In the embodiment of the present invention, the equations (1) and (3) are determined, and the channel corresponding to the normal operation of the radio frequency signal amplifier of the DECT is selected, and then the equation (2) is determined by the formula (1) N1 K1+Lp1 M1 and (2) Whether Pt2+Lp2+Pn2<Pmax2 holds, and when the judgment result is established, the value of (2) formula N1 χ K1+Lp1 is calculated, and the values are first sorted according to the calculated value; Calculate the value of Pt2+Lp2+Pn2 in (4), and sort the values a second time according to the calculated value, select the value calculated in the first sorting and the second sorting The channel whose value is the minimum value is the DECT working channel, which can ensure that the DECT or GSM transmission generates spurious The power in the receiving frequency band corresponding to each channel of the GSM current working channel DECT is small, that is, the transmission of DECT generates less interference to the current working channel of GSM and/or the transmission of GSM generates less to the current working channel of DECT. Interference, reducing the interference between GSM and DECT during communication, enabling both DECT and GSM to communicate normally without significant interference.

In addition, the present invention further provides a multi-mode device 200, as shown in FIG. 5, including:

a determining unit 201, configured to determine a current working frequency band of the first communication mode and a current working channel of the second communication mode;

The evaluating unit 202 is configured to evaluate mutual interference between each channel of the first communication mode in the current working frequency band and a current working channel of the second communication mode;

The selecting unit 203 is configured to select, according to a result of the evaluating, a working channel used by the first communication mode in the current working frequency band, so that the selected working channel of the first communication mode is The interference between the current working channels of the second communication mode is less than the interference between the other channels of the first communication mode in the current working frequency band and the current working channel of the second communication mode;

The communication unit 204 is configured to perform communication in the first communication mode by using the selected working channel of the first communication mode.

The embodiment of the present invention determines mutual interference between each channel in the current working frequency band and the current working channel in the second communication mode by using the first communication mode, and selects the first communication mode. The communication with the channel with the smallest interference of the second communication mode working channel can reduce the interference between different communication modes during communication.

Further, as shown in FIG. 6, the evaluation unit 202 includes:

The determining module 2021 is configured to determine whether the radio frequency signal amplifier component of the second communication mode works normally if the first communication mode uses each channel in the currently working frequency band;

The evaluation module 2022 is configured to evaluate the first communication mode in the current working frequency band Interacting with a channel that causes the radio frequency signal amplifier component of the second communication mode to operate normally, and a current working channel of the second communication mode.

Further, as shown in FIG. 7, the determining module 2021 includes:

Determining a sub-module 2021 1 for determining a transmit power of the first communication mode and an attenuation amount of the transmit power; and determining to determine, if the first communication mode, using a first channel in the currently operating frequency band The maximum normal received power of the second communication mode and the maximum power allowed by the radio frequency signal amplifier component of the second communication mode; and when the determination result of the determining submodule is less than, is used to determine the first communication mode When the first channel is used, the radio frequency signal amplifier component of the second communication mode works normally;

a calculation sub-module 20212, configured to calculate a sum of the first communication mode transmission power, the first communication mode transmission power attenuation amount, and the second communication mode maximum normal reception power; the determining sub-module 20213, And determining whether the result of the calculation is less than a maximum power allowed by the radio frequency signal amplifier component of the second communication mode.

In an embodiment, as shown in FIG. 8, the evaluation unit 202 can include a determination module 20201 and a calculation module 20202.

Optionally, the determining module 20201 is configured to determine, if the first communication mode uses each channel in the currently working frequency band, the first communication mode transmits a corresponding current working channel in the second communication mode. The spurs generated in the working frequency band and the attenuation amount of the first communication mode transmission power; and the working frequency band bandwidth corresponding to the current working channel of the second communication mode; the calculation module 20202 is specifically configured to calculate the When a communication mode uses each channel in the currently operating frequency band, the first communication mode transmits a spur generated in a working frequency band corresponding to a current working channel of the second communication mode, and the second communication The sum of the product of the working frequency band corresponding to the current working channel of the mode and the attenuation of the transmitting power of the first communication mode;

At this time, the selecting unit 203 is specifically configured to: according to the result calculated by the calculating module 20202, select a channel corresponding to the minimum value of the calculation result to be used by the first communication mode in the current working frequency band. Working channel. Optionally, the determining module 20201 is configured to determine, when the first communication mode uses each channel in the currently working frequency band, the second communication mode is transmitted in the first communication mode. a spur generated in a working frequency range corresponding to the channel and an attenuation amount of the second communication mode transmission power; and a working frequency band bandwidth corresponding to the channel used to determine the first communication mode;

The calculating module 20202 is specifically configured to: when the first communication mode uses each channel in the currently working frequency band, the second communication mode transmits a channel corresponding to the channel in the first communication mode. a sum of a product of a spur generated in a working frequency band and a bandwidth of a working frequency band corresponding to the channel of the first communication mode and an attenuation of a transmission power of the second communication mode;

At this time, the selecting unit 203 is specifically configured to: according to the result calculated by the calculating module 20202, select a channel corresponding to the minimum value of the calculation result to be used by the first communication mode in the current working frequency band. Working channel.

Optionally, the determining module 20201 is configured to determine, when the first communication mode uses each channel in the currently working frequency band, the first communication mode transmission currently works in the second communication mode. a spur generated in a working frequency band corresponding to the channel and an attenuation amount of the first communication mode transmission power, where the second communication mode is transmitted within a working frequency band corresponding to the channel in the first communication mode a generated spur and an attenuation amount of the second communication mode transmission power; and a channel corresponding to the working frequency band corresponding to the current working channel of the second communication mode and the channel of the first communication mode Working frequency band bandwidth;

The calculating module 20202 is configured to calculate, when the first communication mode uses each channel in the currently working frequency band, the first communication mode transmits a corresponding current working channel in the second communication mode. a sum of a product of a spur generated in a working frequency band and a bandwidth of a working frequency band corresponding to a current working channel of the second communication mode, and a sum of attenuation of the first communication mode transmission power, and the second communication mode transmission a product of a spur generated in a working frequency band corresponding to the channel of the first communication mode and a working frequency band corresponding to the channel of the first communication mode and a transmission power of the second communication mode The sum of the attenuation amounts W2; and used to calculate if And the sum of the W1 and the W2 when the first communication mode uses each channel in the currently working frequency band;

At this time, the selecting unit 203 is specifically configured to calculate a result of the sum of W1 and W2 according to the calculating module 20202, and select a channel corresponding to the minimum value of the calculation result as the first communication mode at the current location. The working channel used in the working band.

The first communication mode illustrated in the above embodiment of the multimode device of the present invention may be a digital enhanced cordless telephone, and the second communication mode may preferably be a global mobile communication system or wideband code division multiple access.

A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be performed by a program to instruct related hardware, and the program may be stored in a computer readable storage medium, and the storage medium may be Is a read-only memory, a disk or a disc, and so on.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Claim

A working method of a multimode device, comprising:

Evaluating mutual interference between each of the currently operating frequency bands and a current working channel of the second communication mode of the first communication mode;

2. The method according to claim 1, wherein the evaluating the first communication mode is between each channel in the currently operating frequency band and a current working channel in the second communication mode Mutual interference includes:

Determining, if the first communication mode uses each channel in the currently operating frequency band, whether the radio frequency signal amplifier component of the second communication mode works normally;

Evaluating a mutual channel between the channel in the current operating frequency band in which the radio frequency signal amplifier component of the second communication mode operates normally, and the current working channel in the second communication mode interference.

The method according to claim 2, wherein the determining, if the first communication mode uses each channel in the currently operating frequency band, the radio frequency signal amplifier of the second communication mode Whether the pieces work properly include:

Determining, if the first communication mode uses the first channel in the currently operating frequency band, the maximum normal received power of the second communication mode and the radio frequency signal amplifier of the second communication mode The maximum power allowed by the piece;

The method according to claim 1, wherein the evaluating the first communication mode is between each channel in the currently operating frequency band and a current working channel in the second communication mode. Mutual interference includes:

Determining if the first communication mode uses each channel in the currently operating frequency band And transmitting, by the second communication mode, a spur generated in a working frequency range corresponding to the channel of the first communication mode and an attenuation amount of the second communication mode transmission power;

Determining a working frequency band corresponding to the channel of the first communication mode;

When the first communication mode is used to use each channel in the currently working frequency band, the second communication mode transmits a miscellaneous generated in a working frequency range corresponding to the channel in the first communication mode. a result of dispersing a sum of a product of a working frequency band corresponding to the channel of the first communication mode and an attenuation amount of the second communication mode transmission power;

Determining a working frequency band bandwidth corresponding to a current working channel of the second communication mode and a working frequency band corresponding to the channel of the first communication mode;

Calculating, if the first communication mode uses each channel in the currently working frequency band, the first communication mode transmitting a miscellaneous generated in a working frequency band corresponding to a current working channel of the second communication mode And a sum W1 of a product of a working frequency band corresponding to a current working channel of the second communication mode and an attenuation amount of the first communication mode transmitting power, and the second communication mode transmitting in the first communication mode The spur generated in the working frequency range corresponding to the channel and the said a sum of a product of a working frequency band corresponding to the channel of the first communication mode and an attenuation of the second communication mode transmission power W2;

Calculating a result of the sum of W1 and W2 if the first communication mode uses each of the currently operating frequency bands;

The method according to claim 6, wherein the attenuation amount of the first communication mode transmission power and the attenuation amount of the second communication mode transmission power both include a loss caused by free space and hardware isolation. The amount of attenuation.

8. The method according to claim 1, wherein the first communication mode is a digital enhanced cordless telephone, and the second communication mode is a global mobile communication system or a wideband code division multiple access.

9. A multimode device, comprising:

a selecting unit, configured to select, according to a result of the evaluating, a working channel used by the first communication mode in the current working frequency band, so that the selected working channel of the first communication mode is The interference between the current working channels of the second communication mode is smaller than the difference between the other channels of the first communication mode in the current working frequency band and the current working channel of the second communication mode;

The multi-mode device according to claim 9, wherein the evaluation unit comprises: a determining module, configured to determine whether the radio frequency signal amplifier component of the second communication mode works normally if the first communication mode uses each channel in the currently working frequency band;

An evaluation module, configured to evaluate, in the current working frequency band, the channel in which the radio frequency signal amplifier component of the second communication mode works normally, and the current working mode of the second communication mode Mutual interference between channels.

The multi-mode device according to claim 10, wherein the determining module comprises: a determining submodule, configured to determine a transmit power of the first communication mode and an attenuation amount of the transmit power; Determining, if the first communication mode uses the first channel in the currently operating frequency band, the maximum normal received power of the second communication mode and the maximum allowed by the radio frequency signal amplifier component of the second communication mode And determining, when determining that the first communication mode uses the first channel, the radio frequency signal amplifier component of the second communication mode works normally;

a calculation submodule, configured to calculate a result of the sum of the first communication mode transmit power, the transmit power attenuation, and the second communication mode maximum normal receive power;

And a judging submodule, configured to determine whether the result of the calculation is less than a maximum power allowed by the radio frequency signal amplifier component of the second communication mode.

The multi-mode device according to claim 9, wherein the evaluation unit comprises: a determining module, configured to determine, if the first communication mode uses each channel in the currently operating frequency band a first communication mode transmitting a spur generated in a working frequency band corresponding to a current working channel of the second communication mode and an attenuation amount of the first communication mode transmission power; and determining a current working channel of the second communication mode Corresponding working frequency band bandwidth;

a calculation module, configured to calculate, when the first communication mode uses each channel in the current working frequency band, the first communication mode transmission is generated in a working frequency range corresponding to a current working channel of the second communication mode a result of the sum of the product of the spurs and the operating band bandwidth corresponding to the current working channel of the second communication mode and the attenuation of the transmitting power of the first communication mode;

The selecting unit is specifically configured to select the calculated node according to a result calculated by the calculating module The channel corresponding to the minimum value is the working channel used by the first communication mode in the currently operating frequency band.

The multi-mode device according to claim 9, wherein the evaluation unit comprises: a determining module, configured to determine, if the first communication mode uses each channel in the currently operating frequency band And the second communication mode transmits a spur generated in an operating frequency band corresponding to the channel of the first communication mode and an attenuation amount of the second communication mode transmission power; and is used to determine the a working frequency band corresponding to the channel of a communication mode;

a calculation module, configured to calculate, when the first communication mode uses each channel in the current working frequency band, the second communication mode transmits an operating frequency band corresponding to the channel in the first communication mode a result of a sum of a spur generated within a range and a bandwidth of a working frequency band corresponding to the channel of the first communication mode and a sum of attenuation of a transmission power of the second communication mode;

The selecting unit is specifically configured to: according to a result calculated by the calculating module, select a channel corresponding to a minimum value of the calculation result as a working channel used by the first communication mode in the current working frequency band. .

The multi-mode device according to claim 9, wherein the evaluation unit comprises: a determining module, configured to determine, if the first communication mode uses each channel in the currently operating frequency band The first communication mode transmits a spur generated in an operating frequency band corresponding to a current working channel of the second communication mode and an attenuation amount of the first communication mode transmission power, where the second communication mode is transmitted. a spur generated in a working frequency band corresponding to the channel of the first communication mode and an attenuation amount of the second communication mode transmission power; and a method for determining a current working channel of the second communication mode a working frequency band bandwidth and a working frequency band corresponding to the channel of the first communication mode;

a calculation module, configured to calculate, when the first communication mode uses each channel in the currently working frequency band, the first communication mode transmits an operating frequency band corresponding to a current working channel of the second communication mode a sum W1 of a product of a spur generated within a range and a bandwidth of a working frequency band corresponding to a current working channel of the second communication mode and an attenuation amount of the first communication mode transmission power, and the first Transmitting, by the second communication mode, a product of a spur generated in a working frequency band corresponding to the channel of the first communication mode and a working frequency band corresponding to the channel of the first communication mode, and the second a sum of attenuation amounts of communication mode transmission powers W2; and a result of calculating a sum of said W1 and W2 if said first communication mode uses each of said currently operating frequency bands;

The selecting unit is specifically configured to calculate a result of the sum of W1 and W2 according to the calculating module, and select a channel corresponding to a minimum value of the calculation result that the first communication mode is in the current working frequency band. The working channel used.

The multimode device according to claim 14, wherein the attenuation amount of the first communication mode transmission power determined by the determining module and the attenuation amount of the second communication mode transmission power both include free space The amount of attenuation caused and the amount of attenuation caused by hardware isolation.

The multimode device according to any one of claims 9-14, wherein the first communication mode of the multimode device is a digital enhanced cordless phone, and the second communication mode of the multimode device is Global mobile communication system or wideband code division multiple access.