CN103490787B - Method for processing interference in equipment and controller - Google Patents

Abstract

The invention discloses a method and a controller for processing interference in equipment, belonging to the technical field of communication. The method includes: when the second transceiver is interfered by the first transceiver, obtaining the isolation degree and The transmission gain imbalance of the M antennas, and then, according to the isolation between the M antennas and the N antennas and the transmission gain imbalance of the M antennas, determine and close the M antennas The antenna to be turned off in the antenna. In this way, even if the transmission gain of the antenna is unbalanced, the interference of the first transceiver to the second transceiver can still be effectively reduced.

Description

Method and controller for processing interference in equipment

technical field

The invention relates to the field of communication technology, in particular to a method and controller for processing interference in equipment.

Background technique

With the popularization of smart devices, devices integrating multiple wireless transceivers (radio) with different working modes are becoming more and more common, for example, integrating GSM (Global System for Mobile Communications, Global System for Mobile Communications) and WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) mode Radio equipment, to bring users a better equipment experience.

In general, multiple Radios with different working modes are integrated in the same device. When the working bands of the Radios are the same or similar, the sending signal of one Radio will leak into the receiving channel of another Radio, thereby affecting the signal of the latter. Reception, this kind of interference is called intra-device interference because it is the interference between different Radios in a device.

The method for solving the interference within the device in the prior art is to increase the isolation between the antennas of the mutually interfering Radios. The isolation between antennas refers to the ratio of the signal transmitted by one antenna and the signal received by another antenna to the signal of the transmitting antenna. Increasing the isolation can specifically include: when there are antennas with different isolation in interfering radios, you can turn off the antennas with poor antenna isolation in the interfering Radio, and only keep the antennas with better antenna isolation in the interfering Radio to reduce interference. Interference with Interfering Radio. Assume that Radio1 has two transmitting antennas, and Radio2 has one receiving antenna, and assuming that the isolation between the transmitting antenna 1 of Radio1 and the receiving antenna 1 of Radio2 is smaller than the transmitting antenna 2 of Radio1 to the receiving antenna 1 of Radio2, the signal sent on Radio1 will be When the receiving signal of Radio2 is interfered, turn off the transmitting antenna 1 of Radio1, and only use the transmitting antenna 2 of Radio1 with high isolation to transmit signals, so as to reduce the interference of Radio1 to Raido2.

However, in practical applications, due to various reasons, when the Radio in the device communicates with the communication peer (such as a base station), when the antenna in the Radio sends signals to the communication peer, the transmitted signal may have path loss, and the same Different antennas in the Radio may have different losses when sending signals to the communication peer. For example, due to the user's usage habits, the user holds the antenna 2 of Radio1 in the device with his hand. In this way, when the signal sent by the antenna 2 of Radio1 reaches the communication peer, there will be a shadow loss of the user's hand, and this loss may reach 6dB or more, and there is no shadow loss mentioned above when antenna 1 in Radio1 sends the antenna to the peer device, then, in order to maintain the communication quality between antenna 1 and antenna 2 in Radio1 and the communication peer, the signal sent by antenna 2 of Radio1 Compared with the antenna 1 in Radio1, the transmit power should be increased by 6dB to compensate for the additional shadow loss. In the above case, in the prior art, there will be problems in selecting an antenna with high isolation as a working antenna in order to solve the problem of interference within the device. For example, suppose the isolation from Radio1 antenna 1 to Radio2 antenna 1 is 10 dB, and the isolation from Radio1 antenna 2 to Radio2 antenna 1 is 12 dB. In this way, using the method described in the prior art, turn off antenna 1 in Radio1, and select antenna 2 in Radio1 as the transmitting antenna, although the isolation of antenna 2 in Radio1 is 2dB higher than antenna 1, but in order to compensate for antenna 2 in Radio2 For the additional shadow loss when sending signals, the transmission power of Radio1 antenna 2 is 6dB higher than that of Radio1, and finally the interference of Radio1 antenna 2 to Radio2 antenna 1 is 4dB higher than the interference of Radio1 antenna 1 to Radio2 antenna 1.

Contents of the invention

In order to solve the problems in the prior art, an embodiment of the present invention provides a method and a controller for processing interference in a device. Described technical scheme is as follows:

In one aspect, a method of handling interference within a device is provided, the method comprising:

When the second transceiver is interfered by the first transceiver, obtain the degree of isolation between the M antennas of the first transceiver and the N antennas of the second transceiver respectively, and the first transceiver The transceiver and the second transceiver are transceivers configured in the device with two different working modes, M is an integer greater than 1, and N is an integer greater than or equal to 1;

Acquiring transmit gain imbalances of the M antennas respectively, where the transmit gain imbalances are used to indicate that when the M antennas transmit signals to the same communication peer with the same transmit power, the communication peers respectively receiving different degrees of received power of the signals sent by the M antennas;

Determine an antenna to be turned off among the M antennas according to isolation degrees from the M antennas to the N antennas and the transmit gain imbalance of the M antennas;

Turn off the antenna to be turned off.

In another aspect, a controller is provided, and the controller includes: a first acquisition module, a second acquisition module, a determination module, and an antenna shutdown module;

The first acquiring module is configured to acquire the M antennas of the first transceiver to the N antennas of the second transceiver respectively when the second transceiver is interfered by the first transceiver The isolation degree, the first transceiver and the second transceiver are transceivers configured in the device with two different working modes, M is an integer greater than 1, and N is an integer greater than or equal to 1;

The second acquiring module is configured to respectively acquire transmit gain imbalances of the M antennas, where the transmit gain imbalances are used to indicate that the M antennas are sending signals to the same communication pair with the same transmit power At the end, the communication peers respectively receive different degrees of received power of the signals sent by the M antennas;

The determination module is configured to determine the antenna to be turned off among the M antennas according to the isolation degrees from the M antennas to the N antennas and the transmission gain imbalance of the M antennas;

The antenna closing module is configured to close the antenna to be closed.

The beneficial effect brought by the technical solution provided by the embodiment of the present invention is: when the second transceiver is interfered by the first transceiver, the obtained M antennas of the first transceiver are respectively connected to the second transceiver. The degree of isolation of the N antennas of the transceiver, and the obtained transmit gain imbalance of the M antennas of the first transceiver determine the antenna to be turned off in the M antennas of the first transceiver, and turn off the The antenna to be turned off makes it possible to effectively reduce the interference of the first transceiver to the second transceiver even if there is an unbalanced transmission gain of the antenna.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

FIG. 1 is a flow chart of a method for processing interference within a device provided by Embodiment 1 of the present invention;

FIG. 2 is a flow chart of processing interference within a device provided by Embodiment 2 of the present invention;

FIG. 3 is a flow chart of processing interference within a device provided by Embodiment 2 of the present invention;

FIG. 4 is a schematic structural diagram of a controller provided in Embodiment 3 of the present invention;

FIG. 5 is a schematic structural diagram of a controller provided in Embodiment 4 of the present invention;

FIG. 6 is a schematic structural diagram of a controller provided in Embodiment 4 of the present invention;

FIG. 7 is a schematic structural diagram of a controller provided by Embodiment 4 of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Embodiment one

Referring to FIG. 1, a method for processing interference within a device, the method includes:

Step 101: When the second transceiver is interfered by the first transceiver, obtain the isolation degrees between the M antennas of the first transceiver and the N antennas of the second transceiver respectively, the The first transceiver and the second transceiver are transceivers configured in the device with two different working modes, M is an integer greater than 1, and N is an integer greater than or equal to 1;

Step 102: Obtain the transmit gain unbalance of the M antennas respectively, and the transmit gain unbalance is used to indicate that when the M antennas transmit signals to the same communication peer with the same transmit power, the communication Different degrees of received power of the signals sent by the M antennas respectively received by the opposite end;

Step 103: Determine the antenna to be turned off among the M antennas according to the isolation degrees from the M antennas to the N antennas and the transmit gain imbalance of the M antennas;

Step 104: Turn off the antenna to be turned off.

The beneficial effect brought by the technical solution provided by the embodiment of the present invention is: when the second transceiver is interfered by the first transceiver, the obtained M antennas of the first transceiver are respectively connected to the second transceiver. The degree of isolation of the N antennas of the transceiver, and the obtained transmit gain imbalance of the M antennas of the first transceiver determine the antenna to be turned off in the M antennas of the first transceiver, and turn off the The antenna to be turned off makes it possible to effectively reduce the interference of the first transceiver to the second transceiver even if there is an unbalanced transmission gain of the antenna.

Embodiment two

Referring to FIG. 2 , it is a method for dealing with interference within a device provided by an embodiment of the present invention. The device is configured with a first transceiver Radio1 and a second transceiver Radio2 with different working modes, wherein Radio1 is in In the first working mode, Radio2 is in the second working mode. The working mode can include GSM (Global System for Mobile Communications, Global System for Mobile Communications) mode, WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) mode, WLAN (wireless local network, wireless local area network) mode, BT (Bluetooth, Bluetooth) mode or GPS (Global Positioning System, Global Positioning System) mode, etc. In the embodiment of the present invention, once Radio1 and Radio2 work in adjacent or similar frequency bands, the signal sent by Radio1 will cause interference to the signal reception of Radio2 or the signal sent by Radio2 will interfere with the signal reception of Radio1. In the case of interference, the method may specifically include the following operations:

Step 201: Obtain the isolation between the M antennas of Radio1 and the N antennas of Radio2, wherein M is an integer greater than 1, and N is an integer greater than or equal to 1;

In the embodiment of the present invention, the isolation of an antenna refers to the ratio of the transmitting power of one antenna to the receiving power of another antenna. The greater the isolation of an antenna, the smaller the interference of the antenna to another antenna. For example, antenna 1 pair The greater the isolation of antenna 2, the smaller the interference between antenna 1 and antenna 2. Then, the isolation of the M antennas of Radio1 to the N antennas of Radio2 can include:

Control the mth antenna of Radio1 to send a measurement signal to the nth antenna of Radio2 with the first transmission power, receive the first reception power of the measurement signal from the nth antenna fed back by Radio2, and calculate the first transmission power and the first transmission power A ratio of received power to obtain the isolation Lm,n from the mth antenna of Radio1 to the nth antenna of Radio2, where m takes a value from 1 to M, and n takes a value from 1 to N.

Further, in the specific implementation of the embodiment of the present invention, the m-th antenna of Radio1 can be controlled multiple times to send measurement signals to the n-th antenna of Radio2 with the first transmit power, so as to obtain multiple sets of first transmit power and first received The corresponding relationship of power, so as to calculate the isolation degree from the mth antenna of Radio1 to the nth antenna of Radio2, and then take the calculated isolation from the mth antenna of Radio1 to the nth antenna of Radio2 The average value of the isolation is finally used as the isolation Lm,n from the mth antenna of Radio1 to the nth antenna of Radio2.

Here, the reason why multiple measurements are taken to use the average value as the isolation Lm,n from the mth antenna of Radio1 to the nth antenna of Radio2 is to avoid subsequent determination of the M antennas of Radio1 according to the isolation. The antenna to be turned off, and when the antenna to be turned off is turned off, the situation of the antenna to be turned off among the M antennas of Radio1 is constantly adjusted.

Furthermore, when configuring the M antennas of Radio1 and the N antennas of Radio2 of the device, the distance between the mth antenna of Radio1 and the nth antenna of Radio2 can be estimated through repeated tests or based on historical configurations or theoretical analysis. Isolation Lm,n, configure the mth antenna of Radio1 and the nth antenna of Radio2 in the device according to the estimated isolation Lm,n from the mth antenna of Radio1 to the nth antenna of Radio2, and record The isolation degree Lm, n of the mth antenna of Radio1 and the nth antenna of Radio2 is included in the configuration information of the device, then, obtaining the isolation degree of the M antennas of Radio1 to the N antennas of Radio2 respectively can include: from the device The isolation Lm,n from the mth antenna of Radio1 to the nth antenna of Radio2 is read in the configuration information.

Step 202: Obtain the transmit gain imbalance of the M antennas of Radio1 respectively;

In the embodiment of the present invention, the transmit gain imbalance of the antenna is used to indicate that when the M antennas transmit signals to the same communication peer (such as a base station) with the same transmit power, the communication peers receive the M The different degrees of received power of the signals sent by the antennas. In the embodiment of the present invention, under the condition of ensuring the same communication quality, the antenna with a large transmit gain imbalance should have a lower transmit power and a less transmit gain unbalance. The transmitting power of the antenna.

In the specific implementation of the embodiment of the present invention, Radio1 can be determined according to the measurement information between the M antennas of Radio1 and the communication peer, the adjustment record of the transmit power of the M antennas of Radio1, or the configuration information of the M antennas of Radio1 The transmit gain imbalance of the M antennas.

Wherein, determining the transmission gain imbalance of the M antennas of Radio1 according to the measurement information between the M antennas of Radio1 and the communication peer may include the following two methods:

Method 1: Control the mth antenna of Radio1 to send a measurement signal to the communication peer (such as a base station) with the second transmission power, receive the second reception power of the measurement signal fed back by the communication peer, and calculate the second transmission power and The ratio of the second received power obtains the transmit gain imbalance Tm of the mth antenna of Radio1, where m takes a value from 1 to M.

Mode 2: Randomly select an antenna from the M antennas of Radio1 as a reference antenna, and set the transmit gain imbalance of the reference antenna as 0dB (equivalent to a real value 1), the embodiment of the present invention uses the first Antennas are used as reference antennas, and then, determining the transmit gain imbalance of other antennas of Radio 1 relative to the reference antenna may specifically include: controlling the reference antenna to send a measurement signal to the communication peer with the third transmit power, and receiving The third received power of the measurement signal fed back by the communication peer, controls the mth antenna of Radio1 to send the measurement signal to the communication peer (such as a base station) with the third transmit power, and receives the feedback received by the communication peer. Measure the fourth received power of the signal, calculate the ratio of the fourth received power to the third received power, and obtain the transmit gain unbalance degree Tm of the mth antenna of Radio1, where m ranges from 2 to M.

Further, in the process of measuring the transmit gain imbalance, the M antennas of Radio1 may transmit signals of the same power at the same time, or transmit signals of the same power sequentially. For the case where the M antennas of Radio1 transmit signals of the same power, the signals transmitted by each antenna can be orthogonal in a certain dimension at the receiving end, for example, orthogonal in frequency or in the code domain, so as to receive The terminal is able to distinguish signals from different antennas.

Further, in the specific implementation of the embodiment of the present invention, the method described in mode 1 or mode 2 may be used multiple times to obtain the transmission gain imbalance of the mth antenna of multiple Radio1s within a period of time, and the The average value of the transmission gain unbalance degree of the mth antenna of the multiple Radio1 in the radio1 is finally used as the transmission gain unbalance degree Tm of the mth antenna of Radio1.

Here, the reason why the average value over a period of time is used as the transmit gain unbalance Tm of the mth antenna of Radio1 is to avoid subsequent determination of antennas to be turned off among the M antennas of Radio1 based on the transmit gain unbalance Tm , and when the antenna to be turned off is turned off, the situation of the antenna to be turned off among the M antennas of Radio1 is continuously adjusted.

Furthermore, when configuring the M antennas of Radio1 in the device, it is possible to pre-estimate the possible transmission gain imbalance of the M antennas of Radio1 according to the user's usage habits of the device. transmit gain unbalance to deploy the M antennas, and record the transmit gain unbalance of the M antennas of Radio1 into the configuration information of the M antennas, then, according to the M antennas Configure information to obtain the unbalanced transmit gain of the M antennas.

Furthermore, in the transmission network, when the transmit antenna gains of the two antennas are unbalanced, in order to ensure the performance of multiple antennas, the transmit power of the two antennas with unbalanced transmit gain will be adjusted so that the two antennas can reach the communication pair. The received power of the end is balanced (that is, equal), then the adjusted value of the transmitted power of the antenna can be used as the unbalanced degree of the transmitted gain of the antenna, so the embodiment of the present invention can also be based on the adjustment of the transmitted power of the M antennas record to determine the transmit gain imbalance of the M antennas.

Specifically, randomly select an antenna from the M antennas of Radio1 as the reference antenna, and set the transmit gain imbalance of the reference antenna as 0dB (equivalent to a real value 1), obtain the transmission power of each antenna, and calculate Radio1 The ratio of the transmission power of the mth transmitting antenna to the transmission power of the reference antenna is used to obtain the transmission gain imbalance Tm of the mth antenna of Radio1. This method of the base station antenna is used when the Radio is in the communication process and the transmission power of each antenna of Radio1 is controlled by the communication peer. Antennas that transmit signals).

It should be noted that the execution order of steps 201 and 202 is not limited in this embodiment of the present invention.

Afterwards, the antennas to be turned off among the M antennas of Radio1 can be determined according to the isolations from the M antennas of Radio1 to the N antennas of Radio2 respectively and the unbalanced transmit gain of the M antennas of Radio1, so as to turn off the waiting The closed antenna reduces the interference to Radio2 when Radio1 and Radio2 work in the same or adjacent frequency band. For detailed description of this part, refer to step 203 to step 205 .

Step 203: According to the isolation of the M antennas of Radio1 to the N antennas of Radio2 and the transmit gain imbalance of the M antennas of Radio1, calculate the interference isolation of the M antennas of Radio 1 to the N antennas of Radio2 respectively Spend;

Specifically, the isolation of the M antennas of Radio1 to the N antennas of Radio2 and the transmit gain imbalance of the M antennas of Radio1 are correspondingly added to obtain the M antennas of Radio 1 respectively to the N antennas of Radio2. Interference isolation, that is, the interference isolation Im,n=Lm,n+Tm of the M antennas of Radio1 to the N antennas of Radio2 respectively.

Here, the interference isolation degree is used to indicate the interference degree of one antenna to another antenna, and the unit is dB. Specifically, the interference isolation degree described in the embodiment of the present invention is used to indicate the mth antenna among the M antennas of Radio1 The degree of interference to the nth antenna of Radio2, for example, when L1,2=6dB, it means that the first antenna among the M antennas of Radio1 will interfere with the second antenna of Radio2 by 6dB.

Further, when the isolation of the M antennas of Radio1 to the N antennas of Radio2 is different from the transmission gain imbalance of the M antennas of Radio1, when calculating the M antennas of Radio1 respectively to the N antennas of Radio2 Before the interference isolation, different weights are assigned to the isolation from the M antennas of Radio1 to the N antennas of Radio2 and the transmit gain imbalance of the M antennas of Radio1, to indicate that the M antennas of Radio1 are In the interference isolation of the N antennas of Radio2, the proportions of the isolation of the antennas and the unbalanced transmit gain of the antennas are respectively occupied. After that, the M antennas of Radio1 with weights are respectively isolated from the N antennas of Radio2. degree and the transmission gain imbalance of the M antennas of Radio1 to obtain the interference isolation of the M antennas of Radio1 to the N antennas of Radio2, that is, the interference isolation of the M antennas of Radio1 to the N antennas of Radio2 Degree Im,n=A×Lm,n+B×Tm.

Further, the above process is described by taking the gain and the isolation expressed in the logarithmic domain as an example. If the gain and the isolation are expressed in the real number domain, the above addition is multiplication.

Step 204: According to the interference isolation of the M antennas of Radio1 to the N antennas of Radio2, determine the antenna whose interference isolation of the N antennas of Radio1 among the M antennas of Radio1 is less than a predetermined value, and the determined antenna is An antenna to be turned off among the M antennas of Radio1;

Preferably, seek such that or, m at the maximum, use the antennas other than the m antenna among the M antennas in Radio1 as the antennas to be closed in the M antennas of Radio1, where Im, n are the antennas in the M antennas of Radio1 Interference isolation from the mth antenna to the nth antenna among the N antennas of Radio2.

As an example of an optional implementation, m is obtained when Im,n is the largest, and the antennas other than the obtained m-th antenna among the M antennas in Radio1 are used as the antennas to be turned off among the M antennas in Radio1.

As an example of another optional implementation, for each antenna m of Radio1, find As the total interference isolation of antenna m, for any m, find that m at the maximum, use the antennas other than the m antenna among the M antennas in Radio1 as the antennas to be closed in the M antennas of Radio1, where Im, n are the antennas in the M antennas of Radio1 Interference isolation from the mth antenna to the nth antenna among the N antennas of Radio2.

As another optional implementation example, for each antenna m of Radio1, find or As the total interference isolation of antenna m to Radio2, from the M antennas of Radio1, select K antennas with the smallest total interference isolation (0<=K<M, MK>=1 is the minimum number of working antennas of Radio1), An antenna to be turned off among the M antennas of Radio1.

As another optional implementation example, for each antenna m of Radio1, find or As the total interference isolation of antenna m to Radio2, from the M antennas of Radio1, an antenna whose total interference isolation is less than a certain value is selected as the antenna to be turned off among the M antennas of Radio1.

Step 205: Turn off the antennas to be turned off among the M antennas in Radio1, so as to reduce the interference to Radio2;

As an optional implementation step of the embodiment of the present invention, step 206: Send the information of the antenna that is turned off by Radio1 and the information of the antenna that is not turned off to the communication peer, so as to inform the communication peer of the change in the configuration of the antenna in Radio1;

Further, when the embodiment of the present invention is actually implemented, the reason for the change of the antenna configuration in Radio1, that is, the problem that Radio1 interferes with Radio2 in the device, can also be sent to the communication peer to learn, so that the communication peer can know the device's status in real time. information.

It should be noted that the execution body of the above technical solution is the controller configured in the device, and the controller can be integrated in Radio1 or implemented independently of Radio1, which is not limited in the embodiment of the present invention.

In addition, units of the isolation degree, the transmit gain unbalance degree, and the interference isolation degree described in the embodiments of the present invention are all in dB.

Now in conjunction with specific examples to describe the above-mentioned technical scheme in detail, specifically as follows:

Radio1 has two antennas, antenna 1 and antenna 2, and Radio2 has one antenna, antenna 1, and Radio1 and Radio2 work in the same frequency band. Then, when Radio1 interferes with Radio2, the following operations can be performed:

Operation A: Control the antenna 1 of Radio1 to send a signal to the antenna 1 of Radio2 with the transmission power 1, and receive the received power 1 of the signal sent by the antenna 1 of Radio1, then calculate the transmission power 1 and the received signal. The ratio of power 1, to obtain the isolation L1 from the antenna 1 of Radio1 to the antenna 1 of Radio2; after that, the antenna 2 of Radio1 is controlled to send a signal to the antenna 1 of Radio2 with the transmission power 2, and the antenna 1 of Radio2 receiving the feedback from Radio2 receives Radio1 If the received power 2 of the signal sent by the antenna 2 is calculated, the ratio of the transmitted power 2 to the received power 2 is calculated to obtain the isolation L2 from the antenna 2 of Radio1 to the antenna 1 of Radio2.

Operation B: Set the transmit gain unbalance T1 of Radio1’s antenna 1 as 0, then measure the transmit gain unbalance of Radio1’s antenna 2 relative to Radio1’s antenna 1, specifically, measure when Radio1’s antenna 1 transmits power 2 When sending the measurement signal to the base station, the base station feedbacks the receiving power of receiving the measurement signal 2, and measures when the antenna 2 of Radio1 sends the measurement signal to the base station with the transmission power, the base station feeds back the reception power of the measurement signal power 3, calculate the ratio of the received power 3 to the received power 2 to obtain the transmit gain imbalance T2 of the antenna 2 of Radio1.

Operation C: The interference isolation from antenna 1 of Radio1 to antenna 1 of Radio2 is I1=L1+T1, and the interference isolation of antenna 1 of Radio2 from antenna 2 of Radio2 is I2=L2+T2.

Operation D: In the embodiment of the present invention, when I1 is greater than I2, turn off the antenna 2 of Radio1 and keep the antenna 1 in Radio1; when I1 is smaller than I2, turn off the antenna 1 in Radio1 and keep the antenna 2 in Radio1, When I1 is equal to I2, any antenna in Radio1 can be turned off at random to reduce interference from Radio1 to Radio2.

The beneficial effects brought by the embodiments of the present invention are: when the second transceiver is interfered by the first transceiver, the obtained M antennas of the first transceiver are respectively connected to the second transceiver The isolation degree of the N antennas of the first transceiver, and the obtained transmit gain imbalance of the M antennas of the first transceiver are used to determine the antenna to be turned off in the M antennas of the first transceiver, and turn off the antenna to be turned off The antenna is used to effectively reduce the interference of the first transceiver to the second transceiver even if the transmission gain of the antenna is unbalanced.

Referring to FIG. 3 , it is another method for dealing with interference within a device provided by an embodiment of the present invention. The device is configured with a first transceiver Radio1 and a second transceiver Radio2 with different working modes, wherein the working mode Can include GSM (Global System for Mobile Communications, Global System for Mobile Communications) mode, WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access) mode, WLAN (Wireless Local Network, wireless local area network) mode, BT (Bluetooth, Bluetooth) mode Or GPS (Global Positioning System, Global Positioning System) mode, etc. In the embodiment of the present invention, once Radio1 and Radio2 work in adjacent or similar frequency bands, the transmission signal of Radio1 will cause interference to the signal reception of Radio2. In the case that Radio2 is interfered by Radio1, the method may specifically include the following operations:

For the description of step 301 and step 302, please refer to the description of step 201 and step 202 respectively, and details will not be repeated here.

Step 303: Obtain the receiving gain unbalance degree of the N antennas of Radio2;

In the embodiment of the present invention, the receiving gain imbalance is used to indicate the different degrees of receiving power of the N antennas when receiving the signals transmitted from the same communication peer, and the receiving gain imbalance is The reception power of a large antenna is greater than that of an antenna with a small degree of reception gain imbalance.

In the specific implementation of the embodiment of the present invention, the receiving gain imbalance of the N antennas of Radio2 can be determined according to the measurement information between the N antennas of Radio2 and the communication counterpart, and the specific implementation can be as follows:

From the N antennas of Radio2, an antenna is randomly selected as the reference antenna, and the receiving gain imbalance of the reference antenna is set as 0dB. In the embodiment of the present invention, the first antenna in Radio2 is used as the reference antenna. Afterwards, Radio2 is determined. The receiving gain imbalance of other antennas relative to the reference antenna can specifically include: the N antennas in Radio2 respectively receive the signals sent by the communication peer (base station), and record the first antenna of Radio2 receiving the signal The received power is P1, and the received power of the nth antenna other than the first antenna in Radio2 to receive the signal is Pn, and the value of n is 2 to N, then calculate the ratio of Pn to P1 to obtain Radio2 Receive gain imbalance Rn of the nth antenna.

Further, in the specific implementation of the embodiment of the present invention, the above method may be used multiple times to obtain the receiving gain imbalance degree of the nth antenna of multiple Radio2s within a period of time, and the nth antennas of multiple Radio2s within the period of time The average value of the receiving gain unbalance of the n antennas is finally used as the transmit gain unbalance Rn of the nth antenna of Radio2.

Here, the reason why the average value over a period of time is used as the receiving gain imbalance Rn of the nth antenna of Radio2 is to avoid subsequent determination of antennas to be turned off among the M antennas of Radio1 based on the receiving gain imbalance Rn , and when the antenna to be turned off is turned off, the situation of the antenna to be turned off among the M antennas of Radio1 is continuously adjusted.

Afterwards, the M antennas of Radio1 can be determined according to the isolation between the M antennas of Radio1 and the N antennas of Radio2, the transmit gain imbalance of the M antennas of Radio1, and the receive gain imbalance of the N antennas of Radio2. The antenna to be turned off among the antennas is used to turn off the antenna to be turned off, so as to reduce the interference to Radio2 when Radio1 and Radio2 work in the same or adjacent frequency bands. For detailed description of this part, refer to step 304 to step 206 .

Step 304: According to the isolation of the M antennas of Radio1 to the N antennas of Radio2, the transmit gain imbalance of the M antennas of Radio1, and the receive gain imbalance of the N antennas of Radio2, calculate the M antennas of Radio1 The interference isolation of the antennas to the N antennas of Radio2;

Specifically, the isolation between the M antennas of Radio1 and the N antennas of Radio2 is added correspondingly to the transmit gain imbalance of the M antennas of Radio1, and then the receive gain imbalance of the N antennas of Radio2 is subtracted to obtain The interference isolation of the M antennas of Radio1 to the N antennas of Radio2 respectively, that is, the interference isolation Im,n=Lm,n+Tm-Rn of the M antennas of Radio1 to the N antennas of Radio2 respectively.

Wherein, for a detailed description of the interference isolation, please refer to the relevant description in step 203, and details are not repeated here.

Step 305: According to the interference isolation degree of the M antennas to the N antennas, determine the antenna whose interference isolation degree to the N antennas is less than a predetermined value among the M antennas, and the determined antenna is An antenna to be turned off among the M antennas;

For the description of step 306 to step 307, please refer to the description of step 205 to step 206 respectively, and details will not be repeated here.

It should be noted that the execution body of the above technical solution is the controller configured in the device, and the controller can be integrated in Radio1 or implemented independently of Radio1, which is not limited in the embodiment of the present invention. The above-mentioned Radio1 and Radio2 can be located in the wireless terminal, and are used to realize the transceiving and processing of wireless communication.

In addition, units of the isolation degree, the transmit gain unbalance degree, and the interference isolation degree described in the embodiments of the present invention are all in dB.

Now in conjunction with specific examples to describe the above-mentioned technical scheme in detail, specifically as follows:

Radio1 has two antennas, Antenna 1 and Antenna 2, and Radio2 has two antennas, Antenna 1 and Antenna 2, and Radio1 and Radio2 work in the same frequency band. Then, when Radio1 interferes with Radio2, the following operations can be performed:

Operation A: Control the antenna 1 of Radio1 to send a signal to the antenna 1 of Radio2 with the transmission power 1, and receive the received power 1 of the signal sent by the antenna 1 of Radio1, then calculate the transmission power 1 and the received signal. The ratio of power 1, to obtain the isolation L11 from the antenna 1 of Radio1 to the antenna 1 of Radio2; after that, the antenna 1 of Radio1 is controlled to send a signal to the antenna 2 of Radio2 with the transmission power 2, and the antenna 2 of Radio2 receiving the feedback from Radio2 receives Radio1 The received power 2 of the signal sent by the antenna 1 of the antenna 1, then calculate the ratio of the transmitted power 2 to the received power 2, and obtain the isolation L12 from the antenna 1 of Radio1 to the antenna 2 of Radio2, and so on, and calculate the antenna 2 to Radio2 of Radio1 The isolation L21 of the antenna 1 of Radio1, the isolation L22 of the antenna 2 of Radio1 to the antenna 2 of Radio2.

Operation B: Set the transmit gain unbalance T1 of Radio1’s antenna 1 as 0, then measure the transmit gain unbalance of Radio1’s antenna 2 relative to Radio1’s antenna 1, specifically, measure when Radio1’s antenna 1 transmits power 2 When sending the measurement signal to the base station, the base station feedbacks the receiving power of receiving the measurement signal 2, and measures when the antenna 2 of Radio1 sends the measurement signal to the base station with the transmission power, the base station feeds back the reception power of the measurement signal power 3, calculate the ratio of the received power 3 to the received power 2 to obtain the transmit gain imbalance T2 of the antenna 2 of Radio1.

Operation C: Set the receiving gain imbalance R1 of Radio2's antenna 1 to 0, if the receiving power of Radio2's antenna 1 receiving the measurement signal sent by the base station is P1, Radio2's antenna 2 receives the reception of the measurement signal sent by the base station The power is P2, then the ratio of P2 to P1 is the receiving gain unbalance R2 of the antenna 2 of Radio2.

When the embodiment of the present invention is actually implemented, the execution order of the operations A, B, and C is not limited.

Operation D: The interference isolation from antenna 1 of Radio1 to antenna 1 of Radio2 is I11=L11+T1-R1, the interference isolation of antenna 1 of Radio2 from antenna 2 of Radio2 is I12=L12+T2-R2, and the antenna 2 of Radio1 The interference isolation degree to the antenna 1 of Radio2 is I21=L21+T2-R2, and the interference isolation degree of the antenna 2 of Radio2 to the antenna 2 of Radio2 is I22=L22+T2-R2.

Operation E: Determine the interference isolation degree I1 from antenna 1 of Radio1 to Radio2. Specifically, I1 can be the average value of I11 and I12. The interference isolation degree I2 from antenna 2 to Radio2 of Radio1 can be specifically the average value of I21 and I22.

Operation F: In the embodiment of the present invention, when I1 is greater than I2, then turn off the antenna 2 of Radio1 and keep the antenna 1 in Radio1; when I1 is less than I2, turn off the antenna 1 in Radio1 and keep the antenna 2 in Radio1, When I1 is equal to I2, any antenna in Radio1 can be turned off at random to reduce interference from Radio1 to Radio2.

The beneficial effects brought by the embodiments of the present invention are: when the second transceiver is interfered by the first transceiver, the obtained M antennas of the first transceiver are respectively connected to the second transceiver The degree of isolation of the N antennas, and the obtained unbalanced transmit gain of the M antennas of the first transceiver and the unbalanced receive gain of the N antennas of the second transceiver determine the degree of gain of the first transceiver The antenna to be turned off in the M antennas is turned off, and the antenna to be turned off is turned off, so that even if there is an unbalanced transmission gain and an unbalanced reception gain of the antenna, it is still possible to effectively reduce the impact of the first transceiver on the second transceiver. Signal interference.

Embodiment three

Referring to FIG. 4, a controller, the controller includes: a first acquisition module 401, a second acquisition module 402, a determination module 403, and an antenna off module 404;

The first acquiring module 401 is configured to acquire the distance between the M antennas of the first transceiver and the N antennas of the second transceiver respectively when the second transceiver is interfered by the first transceiver Isolation, the first transceiver and the second transceiver are transceivers configured in the device with two different working modes, M is an integer greater than 1, and N is an integer greater than or equal to 1;

The second acquiring module 402 is configured to respectively acquire transmit gain imbalances of the M antennas, where the transmit gain imbalances are used to indicate that the M antennas are sending signals to the same communication peer with the same transmit power , the communication counterparts respectively receive different degrees of received power of the signals sent by the M antennas;

A determining module 403, configured to determine the antenna to be turned off among the M antennas according to the isolation degrees from the M antennas to the N antennas and the transmission gain imbalance of the M antennas;

An antenna closing module 404, configured to close the antenna to be closed.

In the embodiment of the present invention, the second acquisition module 402 is specifically configured to, according to the measurement information between the M antennas and the communication counterpart, the adjustment record of the transmit power of the M antennas, or the configuration of the M antennas information, and determine the transmit gain imbalance of the M antennas.

Further, referring to FIG. 5, the determination module 403 shown in FIG. 4 may include:

The first calculation unit 4031 is configured to calculate and obtain the respective contributions of the M antennas to the N antennas according to the isolation degrees from the M antennas to the N antennas and the transmission gain imbalance of the M antennas. Antenna interference isolation;

The first determining unit 4032 is configured to determine, among the M antennas, the antenna whose interference isolation degree to the N antennas is less than a predetermined value according to the interference isolation degrees of the M antennas to the N antennas, respectively, The determined antenna is the antenna to be turned off among the M antennas.

Further, referring to FIG. 6, the determination module 403 shown in FIG. 4 in the embodiment of the present invention may further include:

The obtaining unit 4033 is configured to respectively obtain the receiving gain unbalance of the N antennas, and the receiving gain unbalance is used to indicate that for signals transmitted from the same communication peer, the N antennas respectively receive the The different degrees of received power of the signal;

The second calculation unit 4034 is configured to calculate according to the degree of isolation between the M antennas and the N antennas, the transmit gain unbalance of the M antennas, and the receive gain unbalance of the N antennas Obtaining the interference isolation of the M antennas to the N antennas respectively;

The second determination unit 4035 is configured to determine, among the M antennas, the antenna whose interference isolation degree to the N antennas is less than a predetermined value according to the interference isolation degrees of the M antennas to the N antennas respectively, so The determined antenna is the antenna to be turned off among the M antennas.

Further, referring to FIG. 7, the controller shown in FIG. 4 in an embodiment of the present invention may further include:

The sending module 405 is configured to send the information of the antennas that are turned off and the information of the antennas that are not turned off in the first transceiver to the communication peer.

The beneficial effect brought by the technical solution provided by the embodiment of the present invention is: when the second transceiver is interfered by the first transceiver, the obtained M antennas of the first transceiver are respectively connected to the second transceiver. The degree of isolation of the N antennas of the transceiver, and the obtained transmit gain imbalance of the M antennas of the first transceiver determine the antenna to be turned off in the M antennas of the first transceiver, and turn off the The antenna to be turned off makes it possible to effectively reduce the interference of the first transceiver to the second transceiver even if there is an unbalanced transmission gain of the antenna. The above-mentioned controller may be located in the wireless terminal to implement interference control between multiple antennas of the wireless terminal.

It should be noted that when the controller provided in the above embodiment processes the interference in the device, it only uses the division of the above-mentioned functional modules as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. That is, the internal structure of the controller is divided into different functional modules to complete all or part of the functions described above. In addition, the controller provided in the above embodiments and the method embodiment for processing interference in the device belong to the same idea, and the specific implementation process thereof is detailed in the method embodiment, and will not be repeated here.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above embodiments can be completed by hardware, and can also be completed by instructing related hardware through a program. The program can be stored in a computer-readable storage medium. The above-mentioned The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, and the like.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (6)

1. A method for handling intra-device interference, for use in a multiple-transmission and multiple-reception scenario, the method comprising:

when a second transceiver is interfered by a first transceiver, a controller acquires the isolation between M antennas of the first transceiver and N antennas of the second transceiver, wherein the first transceiver and the second transceiver are transceivers configured in two different working modes in equipment, M is an integer greater than 1, and N is an integer greater than 1;

the controller respectively acquires the transmission gain imbalance degrees of the M antennas, wherein the transmission gain imbalance degrees are used for indicating different degrees of receiving power of signals sent by the M antennas when the M antennas send the signals to the same communication opposite terminal at the same transmission power;

the controller respectively acquires receiving gain imbalance degrees of the N antennas, wherein the receiving gain imbalance degrees are used for indicating different degrees of receiving power when the N antennas respectively receive signals transmitted by the same communication opposite terminal;

the controller calculates and obtains the interference isolation degree of the M antennas to the N antennas according to the isolation degree from the M antennas to the N antennas, the transmission gain imbalance degree of the M antennas and the receiving gain imbalance degree of the N antennas;

the controller determines an antenna with the interference isolation degree to the N antennas smaller than a preset value in the M antennas according to the interference isolation degree to the N antennas by the M antennas, wherein the determined antenna is an antenna to be closed in the M antennas;

the controller turns off the antenna to be turned off.

2. The method of claim 1, wherein the controller obtains the degrees of imbalance of the transmission gain of the M antennas respectively, and comprises:

and the controller determines the transmission gain imbalance degree of the M antennas according to the measurement information between the M antennas and the communication opposite terminal, the adjustment records of the transmission power of the M antennas or the configuration information of the M antennas.

3. The method of claim 1 or 2, wherein after the controller turns off the antenna to be turned off, the method further comprises:

and the controller sends the information of the closed antenna and the information of the non-closed antenna in the first transceiver to a communication opposite terminal.

4. A controller, for use in a multiple-input multiple-output scenario, the controller comprising: the device comprises a first acquisition module, a second acquisition module, a determination module and an antenna closing module;

the first obtaining module is configured to obtain, when a second transceiver is interfered by a first transceiver, isolation between M antennas of the first transceiver and N antennas of the second transceiver, where the first transceiver and the second transceiver are transceivers configured in two different operating modes in a device, M is an integer greater than 1, and N is an integer greater than 1;

the second obtaining module is configured to obtain transmission gain imbalance degrees of the M antennas, where the transmission gain imbalance degrees are used to indicate different degrees of receiving powers of signals sent by the M antennas by the opposite communication terminals when the M antennas send the signals to the same opposite communication terminal at the same transmission power;

the determining module comprises: an obtaining unit, configured to obtain receive gain imbalance degrees of the N antennas respectively, where the receive gain imbalance degrees are used to indicate, for signals transmitted from a same communication peer, different degrees of receive powers when the N antennas receive the signals respectively; a first calculating unit, configured to calculate, according to isolation degrees from the M antennas to the N antennas, imbalance degrees of transmission gains of the M antennas, and imbalance degrees of reception gains of the N antennas, interference isolation degrees of the M antennas to the N antennas respectively; a first determining unit, configured to determine, according to the interference isolation degrees of the M antennas to the N antennas, an antenna whose interference isolation degree to the N antennas is smaller than a predetermined value among the M antennas, where the determined antenna is an antenna to be turned off among the M antennas;

and the antenna closing module is used for closing the antenna to be closed.

5. The controller according to claim 4, wherein the second obtaining module is specifically configured to determine the imbalance degree of the transmission gains of the M antennas according to measurement information between the M antennas and a communication peer, adjustment records of the transmission powers of the M antennas, or configuration information of the M antennas.

6. The controller according to claim 4 or 5, further comprising:

and the sending module is used for sending the information of the closed antenna and the information of the unclosed antenna in the first transceiver to a communication opposite terminal.