CN103490787B - Method for processing interference in equipment and controller - Google Patents
Method for processing interference in equipment and controller Download PDFInfo
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Abstract
The invention discloses a method for processing interference in equipment and a controller, and belongs to the technical field of communications. The method comprises the following steps that when a second transceiver is interfered by a first transceiver, the isolation degree from M antennas of the first transceiver to N antennas of the second transceiver and the imbalance degree of the transmitting gain of the M antennas are obtained, and the antennas to be closed among the M antennas are determined and closed according to the isolation degree from the M antennas of the first transceiver to the N antennas of the second transceiver and the imbalance degree of the transmitting gains of the M antennas. Even under the condition that the transmitting gains of the antennas are imbalanced, the interference with the second transceiver by the first transceiver can be still effectively lowered.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and a controller for processing interference in a device.
Background
With the popularization of intelligent devices, devices integrated with Radio transceivers (radios) with different operating modes are becoming more common, for example, devices integrated with radios in GSM (Global System for Mobile Communications) and WCDMA (Wideband Code Division Multiple Access) modes bring better device usage experience to users.
Generally, a plurality of radios with different operating modes are integrated in the same device, and when the operating bands of the radios are the same or similar, a transmission signal of one Radio leaks to a receiving channel of another Radio, thereby affecting the signal reception of the latter, and this interference is referred to as intra-device interference because of interference between different radios in one device.
The method for solving the interference in the equipment in the prior art comprises the following steps: increasing the isolation between the antennas of the radios that interfere with each other. Isolation between antennas refers to the ratio of the signal transmitted by one antenna and the signal received by the other antenna to the transmitted antenna signal. Increasing the isolation may specifically include: when antennas with different isolation degrees exist in the mutually interfered radios, the antennas with poor isolation degrees of the antennas in the interfered radios can be turned off, and only the antennas with better isolation degrees of the antennas in the interfered radios are reserved, so that the interference on the interfered radios is reduced. Assuming that Radio1 has two transmitting antennas, Radio2 has one receiving antenna, and assuming that the isolation of receiving antennas 1 from transmitting antenna 1 to Radio2 of Radio1 is smaller than that of receiving antennas 1 from transmitting antenna 2 to Radio2 of Radio1, when a Radio1 transmitting signal interferes with a receiving signal of Radio2, the transmitting antenna 1 of Radio1 is turned off, and only the transmitting antenna 2 of Radio1 with large isolation is used for transmitting the signal, so as to reduce the interference of Radio1 on Raido 2.
However, in practical applications, for various reasons, when a Radio in a device communicates with a communication peer (e.g., a base station), and when an antenna in the Radio transmits a signal to the communication peer, the transmitted signal may have a path loss, and the loss of transmitting the signal to the communication peer may be different for different antennas in the same Radio. For example, due to the usage habit of the user, the user holds the antenna 2 of the Radio1 in the device, so that when the signal transmitted by the antenna 2 of the Radio1 reaches the opposite communication terminal, there is shadow loss of the user's hand, and this loss may reach more than 6dB, and when the antenna 1 in the Radio1 transmits the signal to the opposite terminal device, there is no shadow loss as described above, so that in order to maintain the communication quality between the antenna 1 and the antenna 2 in the Radio1 and the opposite communication terminal, the power of the signal transmitted by the antenna 2 of the Radio1 is increased by 6dB compared with the power of the antenna 1 in the Radio1, so as to compensate for the additional shadow loss. In the above situation, there is a problem in the prior art to select an antenna with high isolation as the working antenna to solve the problem of interference in the device. For example, assume that the isolation of Radio1 antenna 1 to Radio2 antenna 1 is 10dB, and the isolation of Radio1 antenna 2 to Radio2 antenna 1 is 12 dB. Thus, by using the method described in the prior art, the antenna 1 in the Radio1 is turned off, and the antenna 2 in the Radio1 is selected as the transmitting antenna, although the isolation of the antenna 2 in the Radio1 is 2dB higher than that of the antenna 1, in order to compensate for the extra shadow loss of the antenna 2 in the Radio2 when transmitting signals, the transmission power of the antenna 2 in the Radio1 is 6dB higher than that of the antenna 1, and finally, the interference of the antenna 2 in the Radio1 to the antenna 1 in the Radio2 is 4dB higher than the interference of the antenna 1 in the Radio1 to the antenna 1 in the Radio 2.
Disclosure of Invention
In order to solve the problems in the prior art, embodiments of the present invention provide a method and a controller for processing intra-device interference. The technical scheme is as follows:
in one aspect, a method of handling intra-device interference is provided, the method comprising:
when a second transceiver is interfered by a first transceiver, obtaining isolation degrees from M antennas of the first transceiver to N antennas of the second transceiver respectively, 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 or equal to 1;
respectively obtaining 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;
determining antennas to be closed in the M antennas according to the isolation from the M antennas to the N antennas and the transmission gain imbalance of the M antennas;
and turning off the antenna to be turned off.
In another aspect, a controller is provided, the controller including: 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 degrees from M antennas of the first transceiver to 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 or equal to 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 is configured to determine an antenna to be turned off in the M antennas according to the isolation from the M antennas to the N antennas and the imbalance of the transmission gains of the M antennas;
and the antenna closing module is used for closing the antenna to be closed.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: when the second transceiver is interfered by the first transceiver, determining antennas to be turned off in the M antennas of the first transceiver according to the acquired isolation degrees from the M antennas of the first transceiver to the N antennas of the second transceiver respectively and the acquired transmission gain imbalance degrees of the M antennas of the first transceiver, and turning off the antennas to be turned off, so that the interference of the first transceiver to the second transceiver can be effectively reduced even if the transmission gains of the antennas are unbalanced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a method for handling intra-device interference according to an embodiment of the present invention;
fig. 2 is a flowchart of processing intra-device interference according to a second embodiment of the present invention;
fig. 3 is a flowchart of processing intra-device interference according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a controller according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a controller according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a controller according to a fourth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a controller according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example one
Referring to fig. 1, a method of handling intra-device interference, the method comprising:
step 101: when a second transceiver is interfered by a first transceiver, obtaining isolation degrees from M antennas of the first transceiver to N antennas of the second transceiver respectively, 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 or equal to 1;
step 102: respectively obtaining 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;
step 103: determining antennas to be closed in the M antennas according to the isolation from the M antennas to the N antennas and the transmission gain imbalance of the M antennas;
step 104: and turning off the antenna to be turned off.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: when the second transceiver is interfered by the first transceiver, determining antennas to be turned off in the M antennas of the first transceiver according to the acquired isolation degrees from the M antennas of the first transceiver to the N antennas of the second transceiver respectively and the acquired transmission gain imbalance degrees of the M antennas of the first transceiver, and turning off the antennas to be turned off, so that the interference of the first transceiver to the second transceiver can be effectively reduced even if the transmission gains of the antennas are unbalanced.
Example two
Referring to fig. 2, a method for processing intra-device interference according to an embodiment of the present invention is provided, where a first transceiver Radio1 and a second transceiver Radio2 with different operating modes are configured in the device, where Radio1 is in the first operating mode, and Radio2 is in the second operating mode. The operation mode may include a GSM (Global System for mobile communications) mode, a WCDMA (Wideband Code Division multiple access) mode, a WLAN (wireless local network) mode, a BT (Bluetooth) mode, or a GPS (Global Positioning System) mode. In the embodiment of the present invention, once Radio1 and Radio2 operate in adjacent or close frequency bands, a transmission signal of Radio1 may cause interference to signal reception of Radio2 or a signal transmitted by Radio2 may cause interference to signal reception of Radio1, and for a case where Radio2 is interfered by Radio1, the method may specifically include the following operations:
step 201: obtaining the isolation from M antennas of Radio1 to N antennas of Radio2, wherein M is an integer greater than 1, and N is an integer greater than or equal to 1;
in this embodiment of the present invention, the isolation of an antenna refers to a ratio of a transmission power of an antenna to a reception power of another antenna, and the greater the isolation of the antenna is, the less interference the antenna has to the another antenna is, for example, the greater the isolation of the antenna 1 to the antenna 2 is, which indicates that the less interference the antenna 1 has to the antenna 2 is, and then, obtaining the isolation from M antennas of Radio1 to N antennas of Radio2 may include:
controlling an mth antenna of Radio1 to send a measurement signal to an nth antenna of Radio2 at a first transmission power, receiving a first receiving power of the measurement signal received by the nth antenna fed back by Radio2, and calculating a ratio of the first transmission power to the first receiving power to obtain an isolation Lm and an isolation N from the mth antenna of Radio1 to the nth antenna of Radio2, wherein a value of M is from 1 to M, and a value of N is from 1 to N.
Further, in a specific implementation of the embodiment of the present invention, an mth antenna of the Radio1 may be controlled to transmit a measurement signal to an nth antenna of the Radio2 at the first transmission power for multiple times, so as to obtain a corresponding relationship between multiple sets of the first transmission power and the first reception power, thereby obtaining isolation from the mth antenna of the multiple radios 1 to the nth antenna of the Radio2 through calculation, and then, taking an average value of the obtained isolation from the mth antenna of the multiple radios 1 to the nth antenna of the Radio2 as the isolation Lm, n from the mth antenna of the Radio1 to the nth antenna of the Radio 2.
Here, the reason why the measurement is performed for a plurality of times, taking the average value as the isolation Lm, n from the M-th antenna of Radio1 to the n-th antenna of Radio2 is to avoid the situation that the antenna to be turned off in the M antennas of Radio1 is continuously adjusted when the antenna to be turned off is determined in the M antennas of Radio1 according to the isolation and the antenna to be turned off is turned off.
Further, when configuring M antennas of Radio1 and N antennas of Radio2 of the device, obtaining the isolation Lm, N from the mth antenna of Radio1 to the nth antenna of Radio2 through repeated tests or estimation according to historical configuration conditions or theoretical analysis, configuring 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 recording the isolation Lm, N from the mth antenna of Radio1 and the nth antenna of Radio2 to the configuration information of the device, then obtaining the isolation from the M antennas of Radio1 to the N antennas of Radio2, respectively, may include: and reading the isolation Lm, n from the m antenna of the Radio1 to the n antenna of the Radio2 from the configuration information of the equipment.
Step 202: respectively acquiring the imbalance degrees of the transmission gains of M antennas of Radio 1;
in the embodiment of the present invention, the imbalance degree of the transmission gains of the antennas is used to indicate different degrees of the receiving powers of the signals sent by the M antennas when the M antennas send the signals to the same opposite communication terminal (e.g., a base station) with the same transmission power.
In a specific implementation of the embodiment of the present invention, the imbalance degree of the transmission gain of the M antennas of the Radio1 may be determined according to measurement information between the M antennas of the Radio1 and a communication peer, adjustment records of the transmission power of the M antennas of the Radio1, or configuration information of the M antennas of the Radio 1.
The determining of the transmission gain imbalance of the M antennas of the Radio1 according to the measurement information between the M antennas of the Radio1 and the communication peer end may include the following two ways:
mode 1: and controlling the mth antenna of the Radio1 to send a measurement signal to a communication opposite terminal (such as a base station) with second transmission power, receiving second receiving power fed back by the communication opposite terminal and used for receiving the measurement signal, and calculating the ratio of the second transmission power to the second receiving power to obtain the transmission gain imbalance Tm of the mth antenna of the Radio1, wherein the value of M is 1 to M.
Mode 2: randomly selecting one antenna from M antennas of Radio1 as a reference antenna, and setting the transmission gain imbalance of the reference antenna to be 0dB (equivalent to a real value of 1), in the embodiment of the present invention, using a first antenna in Radio1 as the reference antenna, and then determining the transmission gain imbalance of other antennas of Radio1 relative to the reference antenna, which may specifically include: and controlling the reference antenna to transmit a measurement signal to a communication opposite terminal at a third transmission power, receiving a third reception power fed back by the communication opposite terminal for receiving the measurement signal, controlling an mth antenna of the Radio1 to transmit the measurement signal to the communication opposite terminal (such as a base station) at the third transmission power, receiving a fourth reception power fed back by the communication opposite terminal for receiving the measurement signal, and calculating a ratio of the fourth reception power to the third reception power to obtain a transmission gain imbalance Tm of the mth antenna of the Radio1, wherein the value of M is 2 to M.
Further, in the transmission gain imbalance measurement process, the M antennas of the Radio1 may transmit signals of the same power at the same time, or sequentially transmit signals of the same power. For the case where M antennas of Radio1 transmit signals of the same power, the signals transmitted by each antenna may be orthogonal in a certain dimension at the receiving end, for example, in frequency or in code domain, so that the receiving end can distinguish the signals from different antennas.
Further, in a specific implementation of the embodiment of the present invention, the method described in mode 1 or mode 2 may be adopted multiple times to obtain the imbalance degree of the transmission gain of the mth antenna of the multiple radios 1 in a period of time, and an average value of the imbalance degrees of the transmission gain of the mth antenna of the multiple radios 1 in the period of time is finally used as the imbalance degree Tm of the transmission gain of the mth antenna of the Radio 1.
Here, the reason why the average value in a period of time is used as the transmission gain imbalance Tm of the mth antenna of the Radio1 is to avoid a situation that the antenna to be turned off in the M antennas of the Radio1 is determined according to the transmission gain imbalance Tm, and the antenna to be turned off is continuously adjusted in the case that the antenna to be turned off in the M antennas of the Radio1 is turned off.
Furthermore, when configuring M antennas of Radio1 in a device, the possible imbalance degree of the transmission gain of the M antennas of Radio1 may be estimated in advance according to the usage habit of the user to the device, the M antennas may be deployed according to the estimated imbalance degree of the transmission gain of the M antennas of Radio1, and the imbalance degree of the transmission gain of the M antennas of Radio1 may be recorded in the configuration information of the M antennas, so that the imbalance degree of the transmission gain of the M antennas may be obtained according to the configuration information of the M antennas.
Furthermore, in the network, when the gains of the transmitting antennas of the two antennas are unbalanced, in order to ensure the performance of the multiple antennas, the transmitting powers of the two antennas with unbalanced transmitting gains are adjusted, so that the two antennas can achieve the balance (i.e., equal) of the receiving powers of the opposite communication terminals, and then the adjusted values of the transmitting powers of the antennas can be used as the degrees of imbalance of the transmitting gains of the antennas, so the embodiments of the present invention can also determine the degrees of imbalance of the transmitting gains of the M antennas according to the adjustment records of the transmitting powers of the M antennas.
Specifically, one antenna is randomly selected from M antennas of Radio1 as a reference antenna, the transmission gain imbalance of the reference antenna is set to 0dB (corresponding to a real value of 1), the transmission power of each antenna is obtained, the ratio of the transmission power of the mth transmission antenna of Radio1 to the transmission power of the reference antenna is calculated, and the transmission gain imbalance Tm of the mth antenna of Radio1 is obtained. This way of base station antennas is used in the case that Radio is in the process of communication and the transmission power of each antenna of Radio1 is controlled by the opposite communication terminal, where M antennas refer to antennas in working state (i.e. antennas that have not been turned off for signal transmission are not considered).
It should be noted that the execution order of steps 201 and 202 is not limited in the embodiments of the present invention.
Then, the antennas to be closed in the M antennas of Radio1 can be determined according to the isolation from the M antennas of Radio1 to the N antennas of Radio2 and the imbalance of the transmission gains of the M antennas of Radio1, so as to close the antennas to be closed, and reduce the interference to Radio2 when Radio1 and Radio2 work in the same or adjacent frequency bands. See steps 203-205 for a detailed description of this section.
Step 203: according to the isolation from M antennas of Radio1 to N antennas of Radio2 and the imbalance of the emission gains of M antennas of Radio1, calculating to obtain the interference isolation of M antennas of Radio1 to N antennas of Radio 2;
specifically, the isolation from M antennas of Radio1 to N antennas of Radio2 and the imbalance of the transmission gain of M antennas of Radio1 are added correspondingly to obtain the interference isolation from M antennas of Radio1 to N antennas of Radio2, that is, the interference isolation Im, N = Lm, N + Tm from M antennas of Radio1 to N antennas of Radio 2.
Here, the interference isolation is used to indicate the degree of interference from one antenna to another antenna, and the unit is dB, specifically, the interference isolation described in the embodiment of the present invention is used to indicate the degree of interference from the mth antenna of the M antennas of Radio1 to the nth antenna of Radio2, for example, when L1, 2=6dB, it indicates that the 1 st antenna of the M antennas of Radio1 will have 6dB interference to the 2 nd antenna of Radio 2.
Further, when the isolation from M antennas of Radio1 to N antennas of Radio2 is not the same as the imbalance of the transmission gain of M antennas of Radio1, before calculating the interference isolation of M antennas of Radio1 to N antennas of Radio2, different weights are given to the isolation from M antennas of Radio1 to N antennas of Radio2 and the imbalance of the transmission gain of M antennas of Radio1, respectively, to indicate the specific gravity of the isolation of the antennas to the imbalance of the transmission gain of the antennas in the interference isolation of M antennas of Radio2 from M antennas of Radio1 to N antennas of Radio2, and then the respective occupied weights of the isolation of the M antennas of Radio1 to N antennas of Radio2 and the imbalance of the transmission gain of the M antennas of Radio1 are added, to obtain the respective interference of M antennas of Radio1 to N antennas of Radio1, i.e. N antennas of Radio 9638 and N antennas of Radio1, n = a × Lm, n + B × Tm.
Further, the above process is described by taking the example of expressing the gain and the isolation in the logarithmic domain, and if the gain and the isolation are expressed in the real domain, the addition is multiplication.
Step 204: determining an antenna with the interference isolation degree smaller than a preset value to the N antennas of Radio2 in the M antennas of Radio1 according to the interference isolation degree of the M antennas of Radio1 to the N antennas of Radio2, wherein the determined antenna is an antenna to be closed in the M antennas of Radio 1;
preferably, it is sought toOr,taking the antennas except the M-th antenna obtained by calculation in the M antennas in the Radio1 as antennas to be closed in the M antennas of the Radio1 at the maximum time MAnd Im, N is the interference isolation from the mth antenna in the M antennas of Radio1 to the nth antenna in the N antennas of Radio 2.
As an example of an optional implementation, M when Im, n is maximized is obtained, and an antenna except for the M-th antenna obtained by obtaining in M antennas in the Radio1 is used as an antenna to be turned off in M antennas of the Radio 1.
As an example of another alternative implementation, for each antenna m of Radio1, findAs the total interference isolation of the antenna m, for any m, the sumAnd M at the maximum time, taking the antennas except the M-th antenna obtained by calculation in the M antennas in the Radio1 as the antennas to be closed in the M antennas of the Radio1, wherein Im and N are the interference isolation from the M-th antenna in the M antennas of the Radio1 to the N-th antenna in the N antennas of the Radio 2.
As another alternative implementation example, for each antenna m of Radio1, the method comprises the following steps OrAs the total interference isolation of the antenna M to the Radio2, K (0) antennas with the minimum total interference isolation are selected from the M antennas of the Radio1<=K<M，M-K>=1 is the minimum number of antennas operated by Radio 1) as an antenna to be turned off among M antennas of Radio 1.
As another alternative implementation example, for each antenna m of Radio1, the method comprises the following steps OrAs the total interference isolation of the antenna M to the Radio2, selecting an antenna with the total interference isolation smaller than a certain value from the M antennas of the Radio1 as an antenna to be turned off from the M antennas of the Radio 1.
Step 205: turning off the antennas to be turned off in M antennas in Radio1 to reduce interference to Radio 2;
as an optional implementation step of the embodiment of the present invention, step 206: the information of the antennas turned off by the Radio1 and the information of the antennas not turned off are sent to a communication opposite terminal to inform the communication opposite terminal of the change of the antenna configuration in the Radio 1;
further, in a specific implementation of the embodiment of the present invention, a change cause of the antenna configuration in the Radio1, that is, a problem that the Radio1 in the device interferes with the Radio2, may be sent to the opposite communication terminal to be known, so that the opposite communication terminal may obtain information of the device in real time.
It should be noted that the execution main body in the above technical solution is a controller configured in a device, and the controller may be implemented by being integrated in the Radio1 or being implemented by being independent of the Radio1, which is not limited in this embodiment of the present invention.
In addition, the isolation, the transmission gain imbalance and the interference isolation in the embodiment of the invention are all in dB.
The above technical solution will now be described in detail with reference to specific examples, which are as follows:
radio1 has two antennas, antenna 1 and antenna 2, and Radio2 has one antenna of antenna 1, and Radio1 and Radio2 work in the same frequency band, then, when Radio1 has interference to Radio2, can carry out the following operation:
operation A: controlling an antenna 1 of Radio1 to transmit a signal to an antenna 1 of Radio2 at a transmission power 1, receiving a reception power 1 of the signal transmitted by the antenna 1 of Radio1 by the antenna 1 of Radio2 fed back by the Radio2, calculating a ratio of the transmission power 1 to the reception power 1, and obtaining an isolation L1 from the antenna 1 of the Radio1 to the antenna 1 of the Radio 2; and then, controlling the antenna 2 of the Radio1 to transmit a signal to the antenna 1 of the Radio2 by using the transmission power 2, receiving the reception power 2 of the signal transmitted by the antenna 2 of the Radio1 by using the antenna 1 of the Radio2 fed back by the Radio2, and calculating the ratio of the transmission power 2 to the reception power 2 to obtain the isolation L2 from the antenna 2 of the Radio1 to the antenna 1 of the Radio 2.
And operation B: if the transmission gain imbalance T1 of the antenna 1 of Radio1 is set to 0, the transmission gain imbalance of the antenna 2 of Radio1 with respect to the antenna 1 of Radio1 is measured, specifically, the reception power 2 fed back by the base station to receive the measurement signal is measured when the antenna 1 of Radio1 transmits the measurement signal to the base station with the transmission power 2, the reception power 3 fed back by the base station to receive the measurement signal is measured when the antenna 2 of Radio1 transmits the measurement signal to the base station with the transmission power, and the ratio of the reception power 3 to the reception power 2 is calculated to obtain the transmission gain imbalance T2 of the antenna 2 of Radio 1.
And operation C: interference isolation of antenna 1 of Radio1 to antenna 1 of Radio2 is I1= L1+ T1, and interference isolation of antenna 1 of Radio2 of antenna 2 of Radio2 is I2= L2+ T2.
Operation D: in the embodiment of the invention, when I1 is greater than I2, antenna 2 of Radio1 is turned off, antenna 1 in Radio1 is reserved, when I1 is less than I2, antenna 1 in Radio1 is turned off, antenna 2 in Radio1 is reserved, and when I1 is equal to I2, any one antenna in Radio1 can be turned off randomly, so that interference of Radio1 on Radio2 is reduced.
The embodiment of the invention has the following beneficial effects: when the second transceiver is interfered by the first transceiver, determining antennas to be turned off in the M antennas of the first transceiver according to the acquired isolation degrees from the M antennas of the first transceiver to the N antennas of the second transceiver respectively and the acquired transmission gain imbalance degrees of the M antennas of the first transceiver, and turning off the antennas to be turned off, so that the interference of the first transceiver to the second transceiver can be effectively reduced even if the transmission gains of the antennas are unbalanced.
Referring to fig. 3, in another method for processing interference in a device according to an embodiment of the present invention, a first transceiver Radio1 and a second transceiver Radio2 with different working modes are configured in the device, where the working modes may include a GSM (Global System for Mobile Communications) mode, a WCDMA (Wideband Code Division Multiple Access) mode, a WLAN (Wireless local network) mode, a Bluetooth (BT) mode, or a GPS (Global positioning System) mode. In the embodiment of the present invention, once Radio1 and Radio2 operate in adjacent or close frequency bands, the transmission signal of Radio1 will interfere with the signal reception of Radio2, and for the case where Radio2 is interfered by Radio1, the method may specifically include the following operations:
for the description of step 301 and step 302, refer to the description of step 201 and step 202, respectively, and are not described herein again.
Step 303: acquiring receiving gain imbalance degrees of N antennas of Radio 2;
in this embodiment of the present invention, the receiving gain imbalance degree is used to indicate, for signals transmitted from the same communication peer, different degrees of receiving powers when the N antennas respectively receive the signals, and the receiving power of an antenna with a large receiving gain imbalance degree is greater than the receiving power of an antenna with a small receiving gain imbalance degree.
In the embodiment of the present invention, in a specific implementation, the receiving gain imbalance of the N antennas of the Radio2 may be determined according to the measurement information between the N antennas of the Radio2 and the communication opposite terminal, and the specific implementation may be as follows:
in the embodiment of the present invention, a first antenna in Radio2 is used as a reference antenna, and then, determining the receiving gain imbalance of other antennas of Radio2 with respect to the reference antenna may specifically include: n antennas in Radio2 receive signals sent by a communication opposite terminal (base station) respectively, the receiving power of a first antenna of Radio2 for receiving the signals is recorded as P1, the receiving power of an nth antenna except the first antenna in Radio2 for receiving the signals is recorded as Pn, and the value of N is 2 to N, then the ratio of Pn to P1 is calculated, and the receiving gain imbalance Rn of the nth antenna of Radio2 is obtained.
Further, in a specific implementation of the embodiment of the present invention, the foregoing manner may be adopted multiple times to obtain the imbalance degree of the reception gain of the nth antenna of the multiple radios 2 in a period of time, and an average value of the imbalance degree of the reception gain of the nth antenna of the multiple radios 2 in the period of time is finally used as the imbalance degree Rn of the transmission gain of the nth antenna of the Radio 2.
Here, the reason why the average value in a period of time is used as the receiving gain imbalance Rn of the nth antenna of the Radio2 is to avoid a situation that the antenna to be turned off in the M antennas of the Radio1 is determined according to the receiving gain imbalance Rn and the antenna to be turned off is continuously adjusted in the case that the antenna to be turned off in the M antennas of the Radio1 is turned off.
Then, the antennas to be closed in the M antennas of Radio1 can be determined according to the isolation from the M antennas of Radio1 to the N antennas of Radio2, the imbalance degree of the transmission gain of the M antennas of Radio1, and the imbalance degree of the reception gain of the N antennas of Radio2, so as to close the antennas to be closed, and reduce the interference to Radio2 when Radio1 and Radio2 work in the same or adjacent frequency bands. See steps 304-206 for a detailed description of this section.
Step 304: according to the isolation from M antennas of Radio1 to N antennas of Radio2, the imbalance of the transmission gain of M antennas of Radio1 and the imbalance of the receiving gain of N antennas of Radio2, calculating to obtain the interference isolation of the M antennas of Radio1 to the N antennas of Radio 2;
specifically, the isolation from M antennas of Radio1 to N antennas of Radio2 and the imbalance of the transmission gain of M antennas of Radio1 are added correspondingly, and then the imbalance of the reception gain of N antennas of Radio2 is subtracted, so as to obtain the interference isolation from M antennas of Radio1 to N antennas of Radio2, that is, the interference isolation Im, N = Lm, N + Tm-Rn from M antennas of Radio1 to N antennas of Radio 2.
For a detailed description of the interference isolation, refer to the related description in step 203, which is not repeated herein.
Step 305: determining an antenna with the interference isolation degree to the N antennas being 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;
for the description of step 306 to step 307, refer to the description of step 205 to step 206, which is not repeated herein.
It should be noted that the execution main body in the above technical solution is a controller configured in a device, and the controller may be implemented by being integrated in the Radio1 or being implemented by being independent of the Radio1, which is not limited in this embodiment of the present invention. The Radio1 and the Radio2 may be located in a wireless terminal, and are used for implementing transceiving and processing of wireless communication.
In addition, the isolation, the transmission gain imbalance and the interference isolation in the embodiment of the invention are all in dB.
The above technical solution will now be described in detail with reference to specific examples, which are as follows:
radio1 has two antennas, antenna 1 and antenna 2, Radio2 has two antennas, antenna 1 and antenna 2, and Radio1 and Radio2 work in the same frequency band, so when Radio1 has interference to Radio2, the following operations can be performed:
operation A: controlling an antenna 1 of Radio1 to transmit a signal to an antenna 1 of Radio2 at a transmission power 1, receiving a reception power 1 of the signal transmitted by the antenna 1 of Radio1 by the antenna 1 of Radio2 fed back by the Radio2, calculating a ratio of the transmission power 1 to the reception power 1, and obtaining an isolation L11 from the antenna 1 of the Radio1 to the antenna 1 of the Radio 2; then, controlling the antenna 1 of the Radio1 to transmit a signal to the antenna 2 of the Radio2 at the transmission power 2, receiving the reception power 2 of the signal transmitted by the antenna 1 of the Radio1 by the antenna 2 of the Radio2 fed back by the Radio2, calculating a ratio of the transmission power 2 to the reception power 2 to obtain the isolation L12 from the antenna 1 of the Radio1 to the antenna 2 of the Radio2, and repeating the above steps to obtain the isolation L21 from the antenna 2 of the Radio1 to the antenna 1 of the Radio2, and the isolation L22 from the antenna 2 of the Radio1 to the antenna 2 of the Radio 2.
And operation B: if the transmission gain imbalance T1 of the antenna 1 of Radio1 is set to 0, the transmission gain imbalance of the antenna 2 of Radio1 with respect to the antenna 1 of Radio1 is measured, specifically, the reception power 2 fed back by the base station to receive the measurement signal is measured when the antenna 1 of Radio1 transmits the measurement signal to the base station with the transmission power 2, the reception power 3 fed back by the base station to receive the measurement signal is measured when the antenna 2 of Radio1 transmits the measurement signal to the base station with the transmission power, and the ratio of the reception power 3 to the reception power 2 is calculated to obtain the transmission gain imbalance T2 of the antenna 2 of Radio 1.
And operation C: the receiving gain imbalance R1 of the antenna 1 of the Radio2 is set to be 0, if the receiving power of the antenna 1 of the Radio2 for receiving the measurement signal sent by the base station is P1, and the receiving power of the antenna 2 of the Radio2 for receiving the measurement signal sent by the base station is P2, the ratio of P2 to P1 is the receiving gain imbalance R2 of the antenna 2 of the Radio 2.
The embodiment of the present invention is not limited to the execution sequence of operations A, B and C in specific implementation.
Operation D: interference isolation of antenna 1 of Radio1 to antenna 1 of Radio2 is I11= L11+ T1-R1, interference isolation of antenna 1 of Radio2 of antenna 2 of Radio2 is I12= L12+ T2-R2, interference isolation of antenna 1 of antenna 2 of Radio1 to antenna 2 is I21= L21+ T2-R2, interference isolation of antenna 2 of Radio2 of antenna 2 of Radio2 is I22= L22+ T2-R2.
Operation E: determining interference isolation I1 from antenna 1 of Radio1 to Radio2, wherein I1 can be specifically the average value of I11 and I12, interference isolation I2 from antenna 2 of Radio1 to Radio2, and I2 can be specifically the average value of I21 and I22.
Operation F: in the embodiment of the invention, when I1 is greater than I2, antenna 2 of Radio1 is turned off, antenna 1 in Radio1 is reserved, when I1 is less than I2, antenna 1 in Radio1 is turned off, antenna 2 in Radio1 is reserved, and when I1 is equal to I2, any one antenna in Radio1 can be turned off randomly, so that interference of Radio1 on Radio2 is reduced.
The embodiment of the invention has the following beneficial effects: when the second transceiver is interfered by the first transceiver, determining antennas to be turned off in the M antennas of the first transceiver according to the acquired isolation degrees from the M antennas of the first transceiver to the N antennas of the second transceiver respectively, the acquired transmission gain imbalance degrees of the M antennas of the first transceiver and the acquired reception gain imbalance degrees of the N antennas of the second transceiver, and turning off the antennas to be turned off, so that the interference of the first transceiver to the second transceiver can be effectively reduced even if the transmission gain imbalance and the reception gain imbalance of the antennas exist.
EXAMPLE III
Referring to fig. 4, a controller, the controller comprising: a first obtaining module 401, a second obtaining module 402, a determining module 403 and an antenna closing module 404;
a first obtaining module 401, configured to obtain, when a second transceiver is interfered by a first transceiver, isolation degrees from M antennas of the first transceiver to 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 or equal to 1;
a second obtaining module 402, configured to obtain transmit gain imbalance degrees of the M antennas respectively, where the transmit gain imbalance degrees are used to indicate different degrees of receiving powers of signals sent by the M antennas when the M antennas send the signals to a same opposite communication terminal at a same transmit power;
a determining module 403, configured to determine an antenna to be turned off in the M antennas according to isolation from the M antennas to the N antennas and a transmission gain imbalance of the M antennas;
an antenna shutdown module 404, configured to shut down the antenna to be shut down.
In this embodiment of the present invention, the second obtaining module 402 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.
Further, referring to fig. 5, the determining module 403 shown in fig. 4 according to an embodiment of the present invention may include:
a first calculating unit 4031, configured to calculate, according to the isolation degrees from the M antennas to the N antennas respectively and the imbalance degree of the transmission gains of the M antennas, interference isolation degrees of the M antennas to the N antennas respectively;
a first determining unit 4032, configured to determine, according to the interference isolation degrees of the M antennas to the N antennas respectively, 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.
Further, referring to fig. 6, the determining module 403 shown in fig. 4 according to an embodiment of the present invention may further include:
an obtaining unit 4033, 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 of the N antennas when the N antennas receive the signals respectively;
a second calculating unit 4034, configured to calculate, according to the isolation degrees from the M antennas to the N antennas, the imbalance degree of the transmission gains of the M antennas, and the imbalance degree of the reception gains of the N antennas, interference isolation degrees from the M antennas to the N antennas respectively;
a second determining unit 4035, configured to determine, according to the interference isolation degrees of the M antennas to the N antennas respectively, 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.
Still further, referring to fig. 7, the controller shown in fig. 4 according to the embodiment of the present invention may further include:
a sending module 405, configured to send information of the antennas turned off and information of the antennas not turned off in the first transceiver to a communication peer.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: when the second transceiver is interfered by the first transceiver, determining antennas to be turned off in the M antennas of the first transceiver according to the acquired isolation degrees from the M antennas of the first transceiver to the N antennas of the second transceiver respectively and the acquired transmission gain imbalance degrees of the M antennas of the first transceiver, and turning off the antennas to be turned off, so that the interference of the first transceiver to the second transceiver can be effectively reduced even if the transmission gains of the antennas are unbalanced. The controller can be positioned in the wireless terminal to realize interference control among a plurality of antennas of the wireless terminal.
It should be noted that: in the controller provided in the above embodiment, when the interference in the device is processed, only the division of the functional modules is illustrated, and in practical application, the function distribution may 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 and the method for processing the interference in the device provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
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.
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| CN107222285B (en) * | 2017-04-07 | 2020-06-26 | 华为技术有限公司 | Method and terminal for improving WIFI performance |
| CN110190878B (en) * | 2019-05-27 | 2020-09-22 | 维沃移动通信有限公司 | Method for determining antenna use strategy, terminal device and computer readable storage medium |
| CN110224709B (en) * | 2019-05-31 | 2021-07-30 | 维沃移动通信有限公司 | Signal transmission method, device and terminal |
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| CN101106760A (en) * | 2006-07-10 | 2008-01-16 | 华硕电脑股份有限公司 | Communication system with share antenna and its extension card |
| US20100029204A1 (en) * | 2008-07-30 | 2010-02-04 | Jie Gao | Techniques to improve the radio co-existence of wireless signals |
| CN102340359A (en) * | 2010-07-15 | 2012-02-01 | 瑞昱半导体股份有限公司 | Wireless communication system and related method thereof |
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