CN114785360A

CN114785360A - Wireless communication device and method

Info

Publication number: CN114785360A
Application number: CN202210453391.7A
Authority: CN
Inventors: 彭博
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-07-22

Abstract

A wireless communication apparatus and method are provided. The wireless communication apparatus includes: a radio frequency transceiver; one end of the first radio frequency channel is connected with the radio frequency transceiver, and the other end of the first radio frequency channel is connected with the first antenna set; one end of the second radio frequency channel is connected with the radio frequency transceiver, and the other end of the second radio frequency channel is connected with the second antenna set; and the control module is used for determining the working antennas corresponding to the first radio frequency path and the second radio frequency path according to the isolation of the antennas in the first antenna set and the antennas in the second antenna set when the antennas work simultaneously. When the two radio frequency paths work simultaneously, the working antennas corresponding to the radio frequency paths are selected according to the isolation of the antennas concentrated by the two antennas, and the interference between the two radio frequency paths can be reduced.

Description

Wireless communication device and method

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a wireless communication apparatus and method.

Background

Some wireless communication devices support multiple usage requirements by providing multiple radio frequency paths. When a plurality of radio frequency paths work simultaneously, stray signals, harmonic signals and the like of a transmission signal of one radio frequency path may cause interference on another radio frequency path, thereby affecting the receiving sensitivity of information of another radio frequency path.

Disclosure of Invention

The application provides a wireless communication device and a method thereof, which are used for reducing interference among different radio frequency paths.

In a first aspect, a wireless communication apparatus is provided, including: a radio frequency transceiver; one end of the first radio frequency channel is connected with the radio frequency transceiver, and the other end of the first radio frequency channel is connected with the first antenna set; one end of the second radio frequency channel is connected with the radio frequency transceiver, and the other end of the second radio frequency channel is connected with the second antenna set; and the control module is used for determining the working antennas corresponding to the first radio frequency path and the second radio frequency path according to the isolation of the antennas in the first antenna set and the antennas in the second antenna set when the antennas work simultaneously.

In a second aspect, a wireless communication method is provided, including: determining working antennas corresponding to a first radio frequency path and a second radio frequency path respectively according to the isolation of antennas in the first antenna set and antennas in the second antenna set when the antennas work simultaneously, wherein the first antenna set is connected with the first radio frequency path, and the second antenna set is connected with the second radio frequency path; and controlling the first radio frequency path and the second radio frequency path to transmit and/or receive radio frequency signals through the corresponding working antennas.

In a third aspect, a computer-readable storage medium is provided, on which a program is stored which, when executed by a processor, carries out the method according to the second aspect.

When the working antennas corresponding to the two radio frequency paths are selected, the isolation degree between the antennas is considered, and the interference between the two radio frequency paths is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a wireless communication device provided in the related art.

Fig. 2 is a schematic structural diagram of a wireless communication device according to an embodiment of the present disclosure.

Fig. 3 is a schematic diagram of one possible implementation of fig. 2.

Fig. 4 is a schematic diagram of a possible antenna layout of a wireless communication device.

Fig. 5 is a schematic diagram of another possible implementation of fig. 2.

Fig. 6 is a flowchart illustrating a wireless communication method according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments.

With the development of communication technology, wireless communication devices are applied more and more widely. Some wireless communication devices may have multiple radio frequency paths, and different radio frequency paths may operate in different frequency bands, or different radio frequency paths may operate in different RATs. When different radio frequency paths in the same wireless communication device operate simultaneously, mutual interference may occur. For example, a spurious signal generated by one rf path may interfere with the signal reception process of another rf path. As another example, a harmonic signal (or harmonic component) of a radio frequency signal of one radio frequency path may interfere with the signal reception process of another radio frequency path.

The wireless communication device mentioned in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, and may be used for connecting people, things and machines, such as a handheld device having a wireless connection function, a vehicle-mounted device, and the like. The wireless communication Device in the embodiment of the present application may be, for example, a Mobile Phone (Mobile Phone), a tablet computer (Pad), a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable Device, a Virtual Reality (VR) Device, an Augmented Reality (AR) Device, a wireless terminal in Industrial Control (Industrial Control), a wireless terminal in unmanned Driving (Self Driving), a wireless terminal in Remote Medical Surgery (Remote), a wireless terminal in Smart Grid (Smart Grid), a wireless terminal in Transportation security (Transportation security), a wireless terminal in Smart City (Smart City), a wireless terminal in Smart Home (rt Home), and the like.

For ease of understanding, the above-mentioned interference problem is specifically illustrated below by taking the wireless communication apparatus as an example of a mobile terminal supporting dual connectivity communication of 4G and 5G.

The popularity of wireless communication devices and the diversification of applications of wireless communication devices have promoted the rapid development of wireless communication technologies. Currently, a fifth generation wireless communication technology (5G) has been put into use. Compared with the fourth generation communication technology (4G), the electromagnetic wave frequency used by 5G is higher, the frequency resource is richer, and therefore the transmission rate is higher.

If it is desired that the 5G base stations cover the same area as the 4G base stations, the number of required 5G base stations is 3 times or more the number of 4G base stations, and the network construction cost is significantly increased. Due to global unequal economic development, achieving full coverage of 5G takes a long time. In this case, a Non-Stand Alone (NSA) mode of 5G should be developed. NSA makes deployment of 5G networks using existing 4G infrastructure. The 4G and 5G Dual Connectivity (endec) scheme, as a connection mode of NSA, will be an important 5G coverage scheme for a considerable period of time, i.e. the scheme using 4G and 5G Dual Connectivity ensures signal continuity in areas where the 5G signal is unstable or uncovered.

The endec mode requires that a Long Term Evolution (LTE) Radio frequency channel and a New Radio frequency (NR) Radio frequency channel in the wireless communication device operate simultaneously, that is, the 4G Radio frequency channel and the 5G Radio frequency channel operate simultaneously. At this time, interference occurs between the two radio frequency paths. For example, a transmission signal of LTE, and a harmonic component, a spurious signal, and the like of the signal are coupled into a reception path of NR through an antenna, thereby affecting reception sensitivity of NR.

Fig. 1 is a schematic structural diagram of a wireless communication device with two rf paths provided in the related art. As shown in fig. 1, the wireless communication apparatus 100 includes: a radio frequency transceiver 110, a first radio frequency path 120, and a second radio frequency path 130. For ease of description, fig. 1 primarily shows the radio transceiver, the first radio path 120 portion, and the second radio path 130 portion of the wireless communication device, and in fact, the wireless communication device may include other portions, such as switches, duplexers, and so on.

The first rf path 120 is connected to the rf transceiver 110 at one end and to the antenna 140 at the other end. The second rf path 130 has one end connected to the rf transceiver 110 and the other end connected to the antenna 150.

As one example, the first radio frequency path 120 may be used for transmission and/or reception of LTE signals and the second radio frequency path 130 may be used for transmission and/or reception of NR signals.

In the apparatus shown in fig. 1, if the band a and the band B operate simultaneously, the TX signal and/or TX spurious signal of the band a may be coupled to the band B antenna by the band a antenna, thereby affecting the receiving sensitivity of the band B. Conversely, the sensitivity of band a is also affected by the TX signal and/or TX spur of band B. For example, if the rf path corresponding to LTE is in a transmitting state and the rf path corresponding to NR is in a receiving state, harmonic signals and/or spurious signals of the operating frequency band (frequency band a) of LTE may fall within the receiving range of the operating frequency band (frequency band B) of NR, thereby causing a problem of mutual interference and further reducing the receiving sensitivity of the rf path corresponding to NR.

As an example, assuming that the operating frequency of LTE is 1750MHz, the frequency of the 2 nd harmonic signal of the radio frequency signal at the operating frequency is 3500 MHz. If the receiving frequency of NR is exactly 3500MHz, the harmonic signal of LTE will be coupled to the NR antenna 131 along with the antenna 121, and since the operating frequency of NR is 3500MHz, 3500MHz cannot be filtered out by the NR filter (not shown). This deteriorates the reception sensitivity of NR, thereby degrading the throughput or dropping the line.

Currently, in the global range, LTE has a plurality of frequency bands such as LB/MB/HB, and 5G also has a plurality of frequency bands such as LB/MB/HB/SUB6G, so that any combination of the two can generate a plurality of ENDC schemes, such as common LB + LB, LB + MB, LB + HB, MB + HB, LB + SUB6G, MB + SUB6G and HB + SUB 6G. The multiple frequency band combined endec scheme makes NSA face the problem of multiple interference groups, which also increases the difficulty of solving the problem.

It should be noted that the above-mentioned dual connection scenario is only an example. The embodiment of the application can be applied to any scene that different radio frequency paths in the same wireless communication device generate mutual interference. For example, some wireless communication devices may provide WLAN access functions as a hotspot for other devices in addition to cellular communications. At this time, two RAT paths operate simultaneously, and there is a problem that two radio access paths interfere with each other.

In order to solve the above problem, it is common practice to add a filter for filtering out harmonic signals and/or spurious signals in a radio frequency path, however, this solution increases the path loss of the radio frequency path.

Still taking fig. 1 as an example, a filter 121 may be disposed in front of the antenna 140 of the LTE rf path to suppress harmonics of the current operating band of LTE and the energy of spurious signals. However, the filter is installed at a position common to all frequency bands, and when the LTE radio frequency path operates in other frequency bands that do not generate interference or operates independently, the transmitted and received signals also pass through the filter 121, which introduces additional path loss.

In order to solve the above problem, embodiments of the present application provide a wireless communication device and a method, when two rf paths in the wireless communication device are both in an operating state, the operating antenna is selected according to different isolation degrees between multiple antennas in the two rf paths, which is beneficial to reducing interference between the two rf paths.

Fig. 2 is a schematic structural diagram of a wireless communication device according to an embodiment of the present disclosure. The wireless communication device 200 shown in fig. 2 may be any wireless communication device having multiple rf paths, and interference exists between at least two paths. For example, the wireless communication device may be a radio frequency system, or may be a wireless terminal.

Referring to fig. 2, the wireless communication device 200 according to the embodiment of the present disclosure includes a radio frequency transceiver 210, a first radio frequency path 220, a first antenna set 230, a second radio frequency path 250, a second antenna set 260, and a control module 240. The function and implementation of the various components of the wireless communication device are described in detail below in conjunction with fig. 3-5, which illustrate a possible implementation of fig. 2.

The radio frequency transceiver 210 may be used to control the reception and/or transmission of radio frequency signals. For example, during the transmission of the rf signal, the rf transceiver 210 may perform modulation, analog-to-digital/digital-to-analog conversion, and the like on the baseband signal output by the baseband chip. For another example, during the receiving process of the radio frequency signal, the radio frequency transceiver 210 may perform demodulation, analog-to-digital/digital-to-analog conversion, and the like on the radio frequency signal received by the antenna, and transmit the processing result to the baseband chip.

The radio frequency transceiver 210 may be connected to multiple radio frequency paths. The embodiment of fig. 2 is illustrated by an example in which the rf transceiver 210 is connected to two rf paths (i.e., the first rf path 220 and the second rf path 250), but the embodiment of the present invention is not limited thereto, and the rf transceiver 210 may also be connected to three or more rf paths. In this case, the first rf path 220 and the second rf path 250 mentioned in the embodiment of the present application may be any two of the rf paths connected to the rf transceiver 210.

The radio frequency transceiver 210 may control the transmission frequencies of the first radio frequency path 220 and the second radio frequency path 250. For example, the rf transceiver 210 may control the transmission frequencies of the first rf path 220 and the second rf path 250, such that the first rf path 220 operates in a frequency band a (a band) and the second rf path 250 operates in a frequency band b (b band), so that the wireless communication apparatus may perform dual connection communication. For another example, the radio frequency transceiver 210 may control the transmission frequencies of the first radio frequency path 220 and the second radio frequency path 250, so that the first radio frequency path 220 operates in a frequency band of cellular communication (for example, the frequency band may be a 4G frequency band or a 5G frequency band), and the second radio frequency path 250 operates in a WiFi frequency band, so that the wireless communication apparatus may perform cellular communication, and may also be used as a hot spot of other wireless communication devices, so as to provide an access function of a WiFi signal for other wireless communication devices.

The first rf path 220 may be used to transmit signals received from the rf transceiver 210 to the antenna. The first rf path 220 may also transmit the rf signal received from the antenna to the rf transceiver 210. Taking fig. 3 as an example, the first rf path 320 may include a transmitting path and may also include a receiving path. On the transmit path, a Power Amplifier 321 (PA) may be disposed to boost the transmit Power of the rf signal. In the receiving path, a Low Noise Amplifier (LNA) 322 may be disposed to improve the receiving function of the rf signal.

The second rf path 250 may be used to transmit signals received from the rf transceiver 210 to the antenna. The second radio frequency path 250 may also transmit radio frequency signals received from the antenna to the radio frequency transceiver 210. Taking fig. 3 as an example, the second rf path 350 may include a transmit path and may also include a receive path. On the transmit path, a Power Amplifier 351 (PA) may be provided to boost the transmit Power of the rf signal. In the receiving path, a Low Noise Amplifier (LNA) 352 may be disposed to improve the receiving function of the rf signal.

In addition to the above-mentioned components, the first rf path 220 and/or the second rf path 250 may also include other types of components, such as duplexers, filters, switching circuits, etc., and fig. 3 shows an rf path that includes a switching circuit.

The first rf path 220 may be connected to a first set of antennas 230. The first antenna set 230 may include one antenna or a plurality of antennas. For example, the first set of antennas may include three antennas, as shown in fig. 3. In some embodiments, the multiple antennas may be distributed at different locations of the wireless communication device. Taking fig. 4 as an example, the antennas 1 to 3 in fig. 4 belong to the antennas in the first antenna set 230, and the 3 antennas are respectively distributed on the top and the side of the wireless communication device.

If the first antenna set 230 includes multiple antennas, the first rf path 220 may be connected to the multiple antennas through a switching device (e.g., the switching circuit 1 in fig. 3). Through the switching device, an antenna in communication with the first rf path 220 may be selected from the plurality of antennas, i.e., an operating antenna may be selected from the plurality of antennas.

The second rf path 250 may be connected to a second set of antennas 260. The second antenna set 260 may include one antenna or a plurality of antennas. For example, the first antenna set may contain three antennas, as shown in fig. 3. In some embodiments, the multiple antennas may be distributed at different locations of the wireless communication device. Taking fig. 4 as an example, the antennas 4 to 6 in fig. 4 belong to antennas in the second antenna set 260, and the 3 antennas are respectively distributed on the top, the bottom and the side of the wireless communication device.

If the second set of antennas 260 includes multiple antennas, the second rf path 250 may be connected to the multiple antennas through a switching device (e.g., switching circuit 2 in fig. 3). By means of the switching device, an antenna communicating with the second radio frequency path 250 may be selected from the plurality of antennas, i.e. an operating antenna may be selected from the plurality of antennas.

It should be noted that, in order to support the antenna selection scheme based on isolation mentioned later, at least one antenna set of the first antenna set 230 and the second antenna set 260 in the embodiment of the present application includes a plurality of antennas. For example, the first antenna set 230 includes one antenna and the second antenna set 260 includes a plurality of antennas. As another example, first antenna set 230 includes multiple antennas and second antenna set 260 includes one antenna. As another example, first antenna set 230 includes multiple antennas and second antenna set 260 also includes multiple antennas.

The control module 240 may be configured to determine, according to the isolation between the antennas in the first antenna set 230 and the antennas in the second antenna set 260 when operating simultaneously, the operating antennas corresponding to the first rf path and the second rf path.

The control module 240 may be a processor that performs antenna management alone or may be a processor integrated in another module. For example, the control module 240 may be a processor integrated in a radio frequency transceiver or a processor of a wireless communication device.

The control module 240 may determine the respective operating antennas of the first rf path and the second rf path in various manners.

There is a degree of isolation between the different antennas. The greater the isolation, the less energy is coupled from one antenna to the other. The distribution of the antennas in the wireless communication device is often different (as shown in fig. 4), and thus the magnitude of the isolation between the antennas is also different. And the isolation between the antennas is different according to the working frequency of the antennas.

In some embodiments, the control module 240 may select the working antenna corresponding to each of the first rf path and the second rf path only according to the isolation. For example, the control module 240 may select a pair of antennas with the maximum isolation when simultaneously operating as the operating antennas, or may randomly select a pair of antennas from a plurality of pairs of antennas with the isolation satisfying a preset requirement.

As an example, when the frequency band a and the frequency band B operate simultaneously, the control module 240 may select an antenna with the largest isolation in the first antenna set 230 and the second antenna set 260 as an operating antenna corresponding to each of the first radio frequency path 220 and the second radio frequency path 250.

If the working antenna in the frequency band a is the antenna 1 in the first antenna set 230, when the frequency band B is switched from the non-working state to the working state, the control module 240 may use the antenna with the largest isolation from the antenna 1 in the second antenna set 260 as the working antenna of the second rf path 250.

As another example, if the frequency band a and the frequency band B operate simultaneously, and multiple pairs of antennas in the first antenna set 230 and the second antenna set 260 all meet the preset requirement of isolation, the control module 240 may randomly select one pair of antennas as the operating antenna from the multiple pairs of antennas that meet the requirement. The preset requirement can be set by a designer according to factors such as a use scene and a performance index.

The isolation information contains different contents according to different working modes of the radio frequency channel. For example, when two radio frequency paths are used for transceiving LTE and NR signals simultaneously, the isolation may include the isolation of antennas in the first antenna set and the second antenna set when operating in the first frequency band and the second frequency band, respectively; when the two radio frequency paths simultaneously operate in two radio access technologies, the isolation may also include the isolation of the antennas in the first antenna set and the second antenna set when the first radio access technology and the second radio access technology operate, respectively.

The isolation of the antennas during simultaneous working can be measured in real time according to the working frequency of each current radio frequency channel, and a pre-measured result can be called. Taking the pre-measurement as an example, the measurement results of the antenna isolation of each rf channel of the wireless communication device operating at different frequencies may be stored in the memory, and the control module 240 may call up the relevant isolation information from the memory if necessary. The memory may be a separate antenna information memory (e.g., memory 341 shown in fig. 3) or a memory in the radio frequency transceiver (e.g., memory 541 shown in fig. 5).

In other embodiments, the control module 240 may integrate isolation and other types of information in selecting the active antenna. For example, the control module 240 may select an operating antenna based on the isolation and the operating efficiency of the antenna.

The different factors such as the length and the width of the antenna also determine that the working efficiency of different antennas is different. The operating efficiency value of the antenna may affect the transmission and/or reception efficiency of the signal, thereby affecting the performance of the wireless communication device.

As an example, a pair of antennas with the largest isolation may be selected from a plurality of pairs of antennas with operating efficiency satisfying a preset condition, and the selected pair of antennas is used as the operating antennas corresponding to the first radio frequency path and the second radio frequency path. When the frequency band a and the frequency band B work simultaneously, if the working efficiency of multiple pairs of antennas in the first antenna set 230 and the second antenna set 260 meets the preset condition, the antenna pair with the maximum isolation among the antenna pairs may be selected as the working antennas corresponding to the first rf path 220 and the second rf path 250, respectively. The preset conditions of the working efficiency can be set according to factors such as a use scene, performance indexes and the like. For example, if a certain signal received and transmitted by the rf path has a relatively high requirement on performance, a corresponding working antenna may be selected according to the isolation from among a plurality of pairs of antennas whose working efficiency satisfies the preset condition. The mode can not only ensure the performance requirement of the wireless communication device, but also reduce the mutual interference when a plurality of radio frequency channels work simultaneously as much as possible.

As another example, a pair of antennas with the largest operating efficiency value may be selected from a plurality of pairs of antennas with isolation satisfying a preset condition, and the selected pair of antennas is used as the operating antennas corresponding to the first radio frequency path and the second radio frequency path. When the frequency band a and the frequency band B operate simultaneously, if the isolation of multiple pairs of antennas in the first antenna set 230 and the second antenna set 260 meets the preset condition, the antenna pair with the maximum working efficiency value in the antenna pairs may be selected as the working antennas corresponding to the first rf path 220 and the second rf path 250, respectively.

The preset condition of the isolation degree may include various use cases. For example, the preset condition may be that the value of the isolation of the antenna pair is greater than a first threshold. When the frequency band a and the frequency band B work simultaneously, if the isolation of the antennas in the first antenna set 230 and the second antenna set 260 is greater than the first threshold, interference signals such as harmonic signals and spurious signals between the frequency band a and the frequency band B will not affect the normal work of the frequency band a and the frequency band B. In this case, the antenna pair with the isolation greater than the first threshold and the highest operating efficiency value may be selected as the operating antennas corresponding to the first rf path 220 and the second rf path 250. For another example, the preset condition may be that the difference between the isolation degrees of the plurality of antenna pairs is smaller than the second threshold. When the frequency band a and the frequency band B operate simultaneously, if the isolation degrees of the antennas in the first antenna set 230 and the second antenna set 260 are sorted from large to small, when the difference between the isolation degrees of the antenna pairs with the isolation degrees in the first several bits is smaller than the second threshold, that is, the ability of the antenna pairs to reduce the interference between the first rf path 220 and the second rf path 250 is similar. In this case, the antenna pair with the highest operating efficiency value among the above antenna pairs may be selected as the operating antennas corresponding to the first rf path 220 and the second rf path 250, respectively.

The control module 240 may also be configured to determine an operating antenna for the first rf path or the second rf path based on an operating efficiency of an antenna in the first antenna set 230 or an antenna in the second antenna set 260.

When the first rf path 220 works alone, the control module 240 may select a corresponding working antenna according to the working efficiency of the antennas in the first antenna set 230 at the current working frequency. For example, the most efficient antenna in the first antenna set 230 at the current operating frequency may be selected as the operating antenna.

When the second rf path 250 works alone, the control module 240 may select a corresponding working antenna according to the working efficiency of the antennas in the second antenna set 260 under the current working frequency. For example, the antenna in the second set of antennas 260 that operates most efficiently at the current operating frequency may be selected as the operating antenna.

Similar to the isolation information, the antenna efficiency may also be obtained in real time or stored in memory. The memory can be a separate antenna information memory or a memory in the radio frequency transceiver.

The wireless communication device 300 shown in fig. 3 includes a radio frequency transceiver 310, a first radio frequency path 320, a first antenna set 330, a second radio frequency path 350, a second antenna set 360, a control module 340, and a memory 341. The working process of one possible implementation of the present application is specifically described below with reference to fig. 3.

The working state of the present embodiment is divided into two cases:

in the first case: the first radio frequency channel and the second radio frequency channel work simultaneously, and the working frequency bands of the two radio frequency channels can generate mutual interference.

The control module 340 queries the antenna isolation stored in the memory 341, and table 1 shows one possible way to store the isolation.

TABLE 1 isolation of antennas

When the two rf paths operate in a Band and B Band, respectively, if the control module 340 can obtain the maximum isolation of the antenna 2 and the antenna 6 by looking up the table, the antenna 2 and the antenna 6 are used as the operating antennas corresponding to the first rf path 320 and the second rf path 350, respectively. The switch circuit 323 turns on the switch of the antenna 2 according to the determination result of the control module, and the other antennas in the first antenna set 330 remain off. The switch circuit 353 turns on the switch of the antenna 6 according to the determination result of the control module, and the other antennas in the second antenna set 360 remain off. At this time, the first rf path 320 may transmit and/or receive signals through the working antenna 2; the second rf path 350 may transmit and/or receive signals via the working antenna 6.

If the working antenna of the first radio frequency path working in the a Band is the antenna 3, the second radio frequency path is converted from the non-working state to the working state, and when the first radio frequency path working in the B Band, the control module 340 finds the antenna with the largest isolation from the antenna 3 in the second antenna set by looking up the table to be the antenna 6, and then the antenna 6 is used as the working antenna of the second radio frequency path 350. The switching circuit 353 turns on the switch of the antenna 6 according to the determination result of the control module, and the other antennas in the second antenna set 360 remain off. At this time, the second rf path 350 may transmit and/or receive signals through the working antenna 6.

According to the isolation of the antennas of different radio frequency paths during simultaneous working, the antenna with the maximum isolation is selected as the corresponding working antenna of each radio frequency path, so that the mutual interference of the antennas of different radio frequency paths during simultaneous working can be reduced to the maximum extent.

When the two rf paths respectively operate in a Band and B Band, if the control module 340 can obtain that the isolation of the antennas 2 and 6 is the same as or has a small difference from the isolation of the antennas 3 and 4 by looking up a table, the control module 340 may further query the antenna efficiency values stored in the memory (a possible storage manner of the antenna efficiency values is shown in table 2), and if the operating efficiency of the antennas 3 and 4 is higher than the operating efficiency of the antennas 2 and 6, the antennas 3 and 4 are used as respective corresponding operating antennas. And similarly, the switch circuit controls the corresponding antenna to work according to the determination result of the control module.

TABLE 2 antenna efficiency value table

Band (working frequency Band)	Antenna efficiency value
		A Band	Efficiency value of the antenna 1
A Band	Efficiency value of the antenna 2
		A Band	Efficiency value of the antenna 3
B Band	Efficiency value of antenna 4
		B Band	Efficiency value of the antenna 5
B Band	Efficiency value of the antenna 6

When the wireless communication device determines the working antennas of different radio frequency paths, the isolation of the different antennas in the simultaneous working process and the working efficiency of each antenna are comprehensively considered, so that the interference among the plurality of radio frequency paths can be reduced, and the optimal performance can be achieved on the basis.

In the second case: the first rf path 320 or the second rf path 350 is in an independent working state, and the first rf path 320 and the second rf path 350 work simultaneously, but the working frequency bands of the two rf paths do not interfere with each other.

When the control module 340 detects that the rf path operates in the second condition, it queries the antenna efficiency value stored in the memory 341.

If the control module 340 can obtain the highest efficiency value of the antenna 2 of the first rf path 320 operating in the a Band by looking up the table, the antenna 2 is used as the rf path operating antenna. The switch circuit 323 turns on the switch of the antenna 2 according to the determination result of the control module, and the other antennas in the first antenna set 330 remain off. The first radio frequency path 320 may transmit and/or receive signals via the working antenna 2.

If the control module 340 can obtain the highest efficiency value of the antenna 5 of the second rf path 350 operating in B Band through table lookup, the antenna 5 is used as the rf path operating antenna. The switching circuit 353 turns on the switch of the antenna 5 according to the determination result of the control module, and the other antennas in the second antenna set 360 remain off. The second radio frequency path 360 may transmit and/or receive signals via the working antenna 5.

Fig. 5 is a schematic diagram of another possible implementation manner provided by the embodiment of the present application. This implementation is to integrate the memory 541 in the radio frequency transceiver 510. The working principle of other parts is the same as the implementation mode provided by fig. 3, and the detailed description is omitted here.

In practical use, the above tables each store specific antenna efficiency and isolation data. The content stored in the memory is not limited to the above content, and may include antenna efficiency values of all frequency bands in different operation modes of the radio frequency path, isolation information of all antennas during simultaneous operation, and the like. The above tables are illustrative only and do not show all of the information.

The apparatus embodiments of the present application are described in detail above with reference to fig. 2 to 5, and the method embodiments of the present application are described in detail below with reference to fig. 6. It is to be understood that the description of the method embodiments corresponds to the description of the apparatus embodiments, and therefore reference may be made to the preceding apparatus embodiments for parts which are not described in detail.

Fig. 6 is a flowchart illustrating a wireless communication method 600 according to an embodiment of the present application.

The wireless communication method 600 comprises steps S610 and S620, wherein:

s610, determining working antennas corresponding to a first radio frequency channel and a second radio frequency channel respectively according to the isolation of antennas in a first antenna set and antennas in a second antenna set when the antennas work simultaneously, wherein the first antenna set is connected with the first radio frequency channel, and the second antenna set is connected with the second radio frequency channel;

s620, controlling the first rf path and the second rf path to transmit and/or receive rf signals through the corresponding working antennas.

Optionally, determining, according to isolation of the antennas in the first antenna set and the antennas in the second antenna set when the antennas in the first antenna set and the antennas in the second antenna set operate simultaneously, working antennas corresponding to the first radio frequency path and the second radio frequency path, respectively, includes: and respectively selecting a first antenna and a second antenna from the first antenna set and the second antenna set according to the isolation of the antennas in the first antenna set and the second antenna set when the antennas in the second antenna set work simultaneously, wherein the first antenna and the second antenna are the antennas with the maximum isolation in the first antenna set and the second antenna set.

Optionally, determining, according to isolation of the antennas in the first antenna set and the antennas in the second antenna set when the antennas in the first antenna set and the antennas in the second antenna set operate simultaneously, working antennas corresponding to the first radio frequency path and the second radio frequency path, respectively, includes: and determining the working antennas corresponding to the first radio frequency path and the second radio frequency path respectively according to the isolation of the antennas in the first antenna set and the antennas in the second antenna set when the antennas in the first antenna set and the antennas in the second antenna set work simultaneously and the working efficiency of the antennas in the first antenna set and the antennas in the second antenna set.

Optionally, determining, according to the isolation of the antennas in the first antenna set and the antennas in the second antenna set when the antennas in the first antenna set and the antennas in the second antenna set operate simultaneously, and the operating efficiency of the antennas in the first antenna set and the antennas in the second antenna set, the operating antennas corresponding to the first radio frequency path and the second radio frequency path respectively includes: selecting a plurality of pairs of antennas with working efficiency meeting preset conditions from the first antenna set and the second antenna set; and selecting a pair of antennas with the maximum isolation from the plurality of pairs of antennas with the working efficiency meeting the preset condition as the working antennas corresponding to the first radio frequency path and the second radio frequency path respectively.

Optionally, determining, according to the isolation of the antennas in the first antenna set and the antennas in the second antenna set when the antennas in the first antenna set and the antennas in the second antenna set operate simultaneously and the operating efficiency of the antennas in the first antenna set and the antennas in the second antenna set, the working antennas corresponding to the first radio frequency path and the second radio frequency path, respectively includes: selecting a plurality of pairs of antennas with the isolation degree meeting preset conditions from the first antenna set and the second antenna set; and selecting a pair of antennas with the maximum working efficiency from the plurality of pairs of antennas with the isolation degree meeting the preset condition as the working antennas corresponding to the first radio frequency path and the second radio frequency path respectively.

Optionally, the degree of isolation comprises one or more of: the isolation of the antennas in the first antenna set and the second antenna set when the antennas work in the first frequency band and the second frequency band respectively; and isolation of antennas in the first and second sets of antennas when operating in the first and second radio access technologies, respectively.

In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware or any other combination. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A wireless communications apparatus, comprising:

a radio frequency transceiver;

one end of the first radio frequency path is connected with the radio frequency transceiver, and the other end of the first radio frequency path is connected with a first antenna set;

one end of the second radio frequency path is connected with the radio frequency transceiver, and the other end of the second radio frequency path is connected with a second antenna set;

and the control module is used for determining the working antennas corresponding to the first radio frequency channel and the second radio frequency channel according to the isolation of the antennas in the first antenna set and the antennas in the second antenna set when the antennas work simultaneously.

2. The wireless communication apparatus of claim 1, wherein the control module is configured to:

according to the isolation of the antennas in the first antenna set and the antennas in the second antenna set during simultaneous operation, a first antenna and a second antenna are respectively selected from the first antenna set and the second antenna set, wherein the first antenna and the second antenna are the antennas with the maximum isolation in the first antenna set and the second antenna set.

3. The wireless communication apparatus of claim 1, wherein the control module is configured to:

and determining working antennas corresponding to the first radio frequency path and the second radio frequency path according to the isolation of the antennas in the first antenna set and the antennas in the second antenna set when the antennas in the first antenna set and the antennas in the second antenna set work simultaneously and the working efficiency of the antennas in the first antenna set and the antennas in the second antenna set.

4. The wireless communication apparatus of claim 3, wherein the control module is configured to:

selecting a plurality of pairs of antennas with working efficiency meeting preset conditions from the first antenna set and the second antenna set;

and selecting a pair of antennas with the maximum isolation from the plurality of pairs of antennas with the working efficiency meeting the preset condition as the working antennas corresponding to the first radio frequency channel and the second radio frequency channel respectively.

5. The wireless communication apparatus of claim 3, wherein the control module is configured to:

selecting a plurality of pairs of antennas with isolation degrees meeting preset conditions from the first antenna set and the second antenna set;

and selecting a pair of antennas with the maximum working efficiency value from the plurality of pairs of antennas with the isolation degree meeting the preset condition as the working antennas corresponding to the first radio frequency path and the second radio frequency path respectively.

6. The wireless communication apparatus of claim 1, wherein the degree of isolation comprises one or more of:

the isolation of the antennas in the first antenna set and the second antenna set when the antennas work in a first frequency band and a second frequency band respectively; and

the antennas in the first antenna set and the second antenna set operate in isolation in a first radio access technology and a second radio access technology, respectively.

7. The wireless communication apparatus of claim 1, wherein the wireless communication apparatus further comprises:

a memory for storing information indicative of the isolation.

8. The wireless communication apparatus of claim 7, wherein the memory is a stand-alone memory; alternatively, the memory is integrated in the radio frequency transceiver.

9. A method of wireless communication, comprising:

determining working antennas corresponding to a first radio frequency path and a second radio frequency path according to the isolation of antennas in a first antenna set and antennas in a second antenna set when the antennas work simultaneously, wherein the first antenna set is connected with the first radio frequency path, and the second antenna set is connected with the second radio frequency path;

and controlling the first radio frequency channel and the second radio frequency channel to transmit and/or receive radio frequency signals through the corresponding working antennas.

10. The method of claim 9, wherein determining the respective working antennas corresponding to the first rf path and the second rf path according to the isolation between the antennas in the first antenna set and the antennas in the second antenna set during simultaneous working comprises:

11. The method of claim 9, wherein determining the respective working antennas corresponding to the first rf path and the second rf path according to the isolation between the antennas in the first antenna set and the antennas in the second antenna set during simultaneous working comprises:

12. The method of claim 11, wherein the determining the respective working antennas corresponding to the first rf path and the second rf path according to the isolation between the antennas in the first antenna set and the antennas in the second antenna set when operating simultaneously and the working efficiency of the antennas in the first antenna set and the antennas in the second antenna set comprises:

13. The method according to claim 11, wherein the determining the respective working antennas of the first rf path and the second rf path according to the isolation of the antennas of the first antenna set and the antennas of the second antenna set when they are simultaneously working and the working efficiency of the antennas of the first antenna set and the antennas of the second antenna set comprises:

and selecting a pair of antennas with the maximum working efficiency from the plurality of pairs of antennas with the isolation degree meeting the preset condition as the working antennas corresponding to the first radio frequency path and the second radio frequency path respectively.

14. The wireless communication method of claim 9, wherein the isolation comprises one or more of:

isolation of antennas in the first and second antenna sets when operating in first and second radio access technologies, respectively.