Radio frequency system and electronic equipment

Abstract

The invention relates to a radio frequency system and electronic equipment, the radio frequency system comprises a radio frequency transceiver and a radio frequency module, the radio frequency module comprises at least two radio frequency circuits and an aggregation circuit, the aggregation circuit carries out aggregation processing on communication signals received and processed by the at least two radio frequency circuits, and the communication signals are transmitted to a receiving channel in a radio frequency channel group. The receiving of original mutually independent radio frequency circuits is converted into mutually matched signal receiving, and the receiving performance of each receiving channel can be improved, so that the receiving performance of the radio frequency system is improved, and the performance improvement when the radio frequency system is in communication connection with a single communication server is realized; besides, by improving the performance of the receiving channels and aggregating multiple signals, the dependence on more receiving channels can be reduced, the number of radio frequency channel groups is further reduced, and the hardware cost can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of radio frequency technology, and in particular, to a radio frequency system and an electronic device. BACKGROUND

[0002] With the development of wireless short-range communication technology, wireless short-range communication, such as 5G WIFI communication, is increasingly widely used in electronic devices. However, in the related art, the 5G WIFI receiving performance of the electronic device still needs to be further improved. SUMMARY

[0003] Embodiments of the present application provide a radio frequency system and an electronic device, which can improve the receiving performance of the radio frequency system in the wireless short-range communication mode.

[0004] The first aspect of the present application provides a radio frequency system, comprising:

[0005] a radio frequency transceiver having a radio frequency channel group, the radio frequency channel group comprising a receiving channel; and a radio frequency module comprising:

[0006] at least two radio frequency circuits, each of the radio frequency circuits being connected to an antenna and configured to receive and process a wireless short-range communication signal received by the antenna;

[0007] an aggregation circuit configured to aggregate the communication signals received and processed by the at least two radio frequency circuits and transmit the aggregated communication signals to the receiving channel.

[0008] The second aspect of the present application provides an electronic device, comprising:

[0009] the radio frequency system as described above.

[0010] The radio frequency system and the electronic device described above, wherein the radio frequency system comprises a radio frequency transceiver and a radio frequency module, the radio frequency module comprises at least two radio frequency circuits and an aggregation circuit, the aggregation circuit is configured to aggregate the communication signals received and processed by the at least two radio frequency circuits and transmit the aggregated communication signals to the receiving channel in the radio frequency channel group, so that the receiving of the originally independent radio frequency circuits is converted into signal receiving in cooperation with each other, the receiving performance of each receiving channel can be improved, thereby improving the performance of the radio frequency system, and the performance improvement when communicating with a single communication server can be met; in addition, through the improvement of the receiving channel performance and the aggregation of multiple signals, the dependence on more receiving channels can be reduced, and thus the number of radio frequency channel groups can be reduced, and the hardware cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0012] Figure 1 Structure block diagram of a radio frequency system of an embodiment;

[0013] Figure 2 Structure block diagram of a radio frequency system of an embodiment;

[0014] Figure 3 Structure block diagram of a radio frequency system of an embodiment;

[0015] Figure 4 Structure block diagram of a radio frequency system of an embodiment;

[0016] Figure 5 Structure block diagram of a radio frequency system of an embodiment;

[0017] Figure 6 Structure block diagram of a radio frequency system of an embodiment;

[0018] Figure 7 Structure block diagram of a radio frequency system of an embodiment;

[0019] Figure 8 Structure block diagram of a radio frequency system of an embodiment;

[0020] Figure 9 Structure block diagram of a radio frequency system of an embodiment;

[0021] Figure 10 Structure block diagram of a radio frequency system of an embodiment;

[0022] Figure 11 Structure block diagram of a radio frequency system of an embodiment;

[0023] Figure 12 Structure block diagram of a radio frequency system of an embodiment;

[0024] Figure 13 Structure block diagram of a radio frequency system of an embodiment;

[0025] Figure 14 Structure block diagram of a radio frequency system of an embodiment;

[0026] Figure 15 Structure block diagram of a radio frequency system of an embodiment;

[0027] Figure 16 Figure 16 is a structural block diagram of a radio frequency system according to an embodiment;

[0028] Figure 17 Figure 17 is a structural block diagram of a radio frequency system according to an embodiment;

[0029] Figure 18 Figure 18 is a structural block diagram of an electronic device according to an embodiment. DETAILED DESCRIPTION

[0030] In order to make the purposes, technical solutions, and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0031] It can be understood that the terms "first", "second", and the like used in the present application can be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, and the like, unless otherwise explicitly specified. It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to another element or can exist simultaneously with a middle element.

[0032] The radio frequency system related to the embodiments of the present application can be applied to electronic devices with wireless communication functions, which can be handheld devices, vehicle-mounted devices, smart cars, wearable devices, computing devices, or other processing devices connected to wireless modems, and various forms of user equipment (UE) (for example, mobile phones), mobile stations (MS), and the like. For convenience of description, the above-mentioned devices are collectively referred to as electronic devices. The electronic device of the present embodiment can support communication with a communication server, which can be a base station router or the like connection site; the electronic device can also support communication with other electronic devices.

[0033] Figure 1 Figure 1 is a structural block diagram of a radio frequency system according to an embodiment, for reference Figure 1 In the present embodiment, the radio frequency system includes a radio frequency transceiver 10 and a radio frequency module.

[0034] The radio frequency transceiver 10 has a radio frequency channel group, which can include a receiving channel (RX in the figure) for supporting receiving a communication signal received by an antenna and processed by a radio frequency circuit. When the radio frequency transceiver 10 only supports receiving functions, it can be understood as a wireless receiver. The radio frequency channel group can also include a transmitting channel for supporting providing a communication signal to be transmitted to the radio frequency circuit. The radio frequency transceiver 10 can support receiving and transmitting of the communication signal through the radio frequency channel group.

[0035] The number of the radio frequency modules can be one or more. When the number of the radio frequency modules is more than one, the radio frequency modules correspond to a plurality of receiving channels of the radio frequency channel group. Each radio frequency module includes at least two radio frequency circuits 20 and an aggregation circuit 220. Each radio frequency circuit 20 in the at least two radio frequency circuits 20 corresponds to an antenna and is used for receiving and processing a wireless short-range mode communication signal received by the antenna. The receiving and processing of the at least two radio frequency circuits 20 can realize high-order diversity reception. The receiving and processing can be low-noise amplification processing, low-noise amplification processing combined with filtering processing, or only signal transmission. The communication signal is a wireless short-range mode communication signal.

[0036] The wireless short-range mode can include any one of a WIFI mode and a Bluetooth (BT) mode. The WIFI mode can include any one of a 2.4G WIFI mode and a 5G WIFI mode. The Bluetooth mode can include any one of a 2.4G BT mode and a 5G BT mode. It can be understood that the embodiments of the present application are not limited to the WIFI mode and the BT mode described above, and the embodiments do not make a one-by-one introduction to this.

[0037] The aggregation circuit 30 is used for performing aggregation processing on the communication signals received and processed by the at least two radio frequency circuits 20 and transmitting the communication signals to the receiving channel. Through simple signal aggregation, the receiving channel can receive a plurality of communication signals, and the cost is low and can be applied on a large scale.

[0038] The number of ports of the aggregation circuit 30 can be set based on actual application requirements of the radio frequency system to match the number of communication signals to be aggregated. For example, when the aggregation circuit 30 needs to aggregate communication signals received by four antennas and transmit the communication signals to a receiving channel, the number of ports is set to four to correspondingly connect to the four radio frequency circuits 20. When the aggregation circuit 30 needs to aggregate communication signals received by two antennas, the number of ports is set to two to correspondingly connect to the two radio frequency circuits 20.

[0039] The aggregation circuit 30 can be a hardware circuit with a signal aggregation function to realize simple signal aggregation function. The aggregation circuit 30 can also be a software circuit or a combination of software and hardware circuit with a signal aggregation processing algorithm.

[0040] In the related art, in a radio frequency system supporting a short distance mode, a radio frequency transceiver is usually provided with two channel groups which are independent of each other, each channel group includes a plurality of receiving channels, the plurality of receiving channels in the same channel group can correspond to support the same communication signal, and the two channel groups support different frequency bands. For example, as shown in Figure 2 the radio frequency transceiver in the related art usually includes a first radio frequency channel group and a second radio frequency channel group, each channel group includes a plurality of receiving channels, and each receiving channel is connected to a radio frequency circuit. Among them, the first channel group can support a WIFI frequency band signal, which can be understood as the first channel group can be connected in communication with a communication server, for example, a router; the second channel group can support another WIFI frequency band signal, which can be understood as the second channel group can be connected in communication with another communication server, for example, another router.

[0041] However, in actual application, on the one hand, the setting of the two channel groups cannot meet the performance improvement when the radio frequency system is connected in communication with a single router; on the other hand, the probability of the radio frequency system simultaneously communicating with WIFI signals of two different frequency bands is small, and currently users usually mainly use a router supporting a WIFI frequency band in actual use, for example, if the user's living place happens to use only a 5G WIFI frequency band router to realize communication connection with the radio frequency system, the probability of the user being able to simultaneously experience the 5G WIFI and 2.4G WIFI multi-frequency band scene is small, causing the waste of resources of the 2.4G WIFI channel group.

[0042] The radio frequency system provided in the embodiment includes a radio frequency transceiver 10 and a radio frequency module, the radio frequency module includes at least two radio frequency circuits 20 and an aggregation circuit 30, the communication signals received and processed by the at least two radio frequency circuits 20 are aggregated by the aggregation circuit 30, and are transmitted to the receiving channels in the radio frequency channel group, so that the original independent receiving of the radio frequency circuits 20 is converted into signal receiving in cooperation with each other, which can enhance the signal coverage range and penetration ability of each receiving channel, and can also enhance the receiving rate, receiving strength and quantity throughput of each receiving channel, and can improve the receiving performance of each receiving channel, thereby realizing the performance improvement when connected in communication with a single communication server. In addition, through the improvement of the receiving channel performance and the aggregation of multiple signals, the dependence on more receiving channels can be reduced, thereby reducing the number of radio frequency channel groups, which can reduce the hardware cost and is conducive to the miniaturization and low-cost design of the radio frequency transceiver 10.

[0043] Taking WIFI as an example, WIFI signals are easily blocked by walls, furniture and other obstacles in indoor environments, resulting in attenuation and obvious penetration loss. By aggregating multiple WIFI signals of the same frequency band to a receiving channel, signal power superposition and energy concentration can be achieved, the signal coverage range and penetration capability of a single receiving channel can be enhanced, and the receiving stability of WIFI signals in complex indoor environments can be improved. By aggregating multiple WIFI signals, the receiving performance of the receiving channel, such as receiving rate, receiving strength and data throughput, can be improved, which is beneficial to the high-bandwidth application requirements of electronic devices such as video streaming and VR. In addition, by aggregating multiple WIFI signals, the performance of a single channel can be improved without relying on more receiving channels, the number of receiving channels can be reduced, and thus the number of RF channel groups can be reduced, thereby reducing the hardware cost and realizing miniaturization and low-cost design of the RF transceiver 10.

[0044] It should be noted that in the description process, the aggregation circuit 30 is divided in the RF module, which is only for more clear description of the embodiment, and does not limit the ownership of the aggregation circuit 30. The aggregation circuit 30 can be arranged outside the RF transceiver 10 and the RF circuit 20, or can be integrated inside the RF transceiver 10 or the RF circuit 20. The following is further explained by several examples:

[0045] In some embodiments, the aggregation circuit 30 is integrated inside the RF transceiver 10.

[0046] As shown in Figure 3 The RF transceiver 10 is configured with at least two input ports (two input ports are taken as an example in the figure, and R1 and R2 in the figure are input ports, respectively), and the at least two input ports are connected with the at least two RF circuits 20 (two RF circuits 20 are taken as an example in the figure). The RF transceiver 10 can be understood as a packaged device, and the two input ports can be understood as receiving pin terminals of the packaged device, which are used to connect with the RF circuits 20.

[0047] Among them, the first end of the aggregation circuit 30 is connected with the receiving channel, and the at least two second ends of the aggregation circuit 30 are respectively connected with the at least two input ports, so as to connect the at least two RF circuits 20 through the at least two input ports.

[0048] The aggregation circuit 30 can perform aggregation processing on signals received and processed by at least two radio frequency circuits 20 through the connection between the aggregation circuit 30 integrated inside the radio frequency transceiver 10 and each input port, and the connection between each input port and each radio frequency circuit 20. On the one hand, the aggregation circuit 30 cooperates with the receiving channel, and by integrating the aggregation circuit 30 directly inside the radio frequency transceiver 10, the transmission path between the aggregation circuit 30 and the receiving channel can be shortened, and interference that may exist at the interface position of the separate aggregation circuit 30 and the radio frequency transceiver 10 in the receiving channel can be avoided, and the waste of signal energy can be reduced. On the other hand, by integrating the aggregation circuit 30 inside the radio frequency transceiver 10, the integration degree of the radio frequency transceiver 10 can be realized, and the aggregation function of the radio frequency transceiver 10 can be expanded, which can simplify the peripheral structure while meeting the performance improvement.

[0049] In some embodiments, the aggregation circuit 30 is integrated inside a first radio frequency circuit F1 of the at least two radio frequency circuits 20.

[0050] As shown in Figure 4 , the first radio frequency circuit is configured with an antenna port (such as Ant1 in the figure), a receiving output port (such as Rxo in the figure), and a plurality of receiving input ports (such as Rxi in the figure, which is an example of a receiving input port in the figure). The first radio frequency circuit F1 can be understood as a packaged device, and the antenna port, the receiving output port, and the plurality of receiving input ports can be understood as radio frequency pin terminals of the packaged device, which are used to connect with each external antenna, radio frequency transceiver 10, and other radio frequency circuits 20.

[0051] Among them, the antenna port is connected with the antenna, the receiving output port is connected with the receiving channel, and the plurality of receiving input ports are respectively connected with a plurality of second radio frequency circuits F2 corresponding to the first radio frequency circuit F1. The second radio frequency circuit F2 is a circuit other than the first radio frequency circuit F1 in the at least two radio frequency circuits 20. The communication signal is received by the antenna connected with the antenna port and transmitted to the inside of the first radio frequency circuit F1 to realize the receiving processing of the communication signal; in addition, a plurality of communication signals are received and processed by the second radio frequency circuit F2 connected with the plurality of receiving input ports, and transmitted to the inside of the first radio frequency circuit F1.

[0052] Among them, the first radio frequency circuit F1 includes the aggregation circuit 30 and the receiving module 210, and the receiving module 210 is respectively connected with the antenna port and the aggregation circuit 30, and the aggregation circuit 30 is respectively connected with the receiving output port and the plurality of receiving input ports.

[0053] The receiving module 210 is configured to receive and process the communication signals received by the antenna port. The related description of the receiving and processing can refer to the above embodiments, and will not be repeated here. For example, the receiving module 210 can include a low-noise amplifier to realize the low-noise amplification processing function of the received communication signals; the receiving module 210 can also include a low-noise amplifier and a filter to realize the low-noise amplification and filtering processing function of the received communication signals; for example, the receiving module 210 can also include a bypass to realize the transmission of the communication signals through the bypass.

[0054] The aggregation circuit 30 is configured to receive the communication signals processed by the receiving module 210, and receive the communication signals processed by the second radio frequency circuit F2 through a plurality of receiving input ports. When all the communication signals are received, the signal aggregation is performed, and after the aggregation processing, the communication signals are transmitted to the receiving channel in the radio frequency channel group through the receiving output port.

[0055] The connection between the aggregation circuit 30 integrated in the first radio frequency circuit F1 and the receiving module 210, each receiving input port and the receiving output port can realize the aggregation processing of the signals processed by at least two radio frequency circuits 20 by the aggregation circuit 30. On the one hand, the aggregation circuit 30 cooperates with each radio frequency circuit 20, and by integrating the aggregation circuit 30 in one of the radio frequency circuits 20, i.e. in the first radio frequency circuit F1, the transmission path between the aggregation circuit 30 and the receiving module 210 in the first radio frequency circuit F1 can be shortened, and the interference between the separate aggregation circuit 30 and the plurality of radio frequency circuits 20 at the connection position can be avoided, and the waste of signal energy can be reduced. On the other hand, by integrating the aggregation circuit 30 in the first radio frequency circuit F1, the integration of the first radio frequency circuit F1 can be realized, and the aggregation function of the first radio frequency circuit F1 can be expanded, which can simplify the peripheral structure and meet the performance improvement.

[0056] In some embodiments, the aggregation circuit 30 can be integrated in the radio frequency transceiver 10, or be arranged outside the radio frequency transceiver 10 and the radio frequency circuit 20. At this time, each radio frequency circuit 20 can be a packaged device or a discrete device.

[0057] For example, as shown in Figure 5 At least one first radio frequency circuit F1 of the at least two radio frequency circuits 20 is a packaged device, which is configured with an antenna port (such as Ant1 in the figure) and a receiving output port (such as Rxo in the figure). The antenna port and the receiving output port can be understood as the radio frequency pin terminals of the packaged device.

[0058] The antenna port is connected with an antenna, and the receiving output port is connected with the aggregation circuit 30. The communication signal is received by the antenna connected with the antenna port, and is transmitted to the inside of the first radio frequency circuit F1 to realize the receiving processing of the communication signal. The receiving processing communication signal is transmitted to the aggregation circuit 30 through the receiving output port. Specifically, the first radio frequency circuit F1 includes a receiving module 210 connected with the antenna port and the receiving output port respectively. The receiving module 210 is used for receiving processing of the communication signal received by the antenna. The related description of the receiving module 210 can refer to the description of the above-mentioned embodiments, which will not be described here.

[0059] By integrating at least one path in at least two radio frequency circuits 20 into a packaged device, the integration of the radio frequency circuit 20 can be improved, and the occupied area of the radio frequency circuit 20 in the radio frequency system can be reduced.

[0060] In some embodiments, as shown in Figure 6 Figure 6 Based on the example shown in Figure 4 The receiving module 210 is used for low-noise amplification processing of the communication signal. The first radio frequency circuit F1 further includes a receiving bypass 220 connected with both ends of the receiving module 210, used for bypassing the receiving module 210 and transmitting the communication signal when the connection between the two ends of the receiving module 210 is turned on.

[0061] The receiving module 210 can perform linear amplification when the communication signal received by the antenna is weak, while the noise introduced by itself is controlled at a very low level, ensuring that the signal can maintain high quality after amplification, and can meet the communication requirements of high quality and high strength.

[0062] The receiving bypass 220 can be understood as a transmission channel without loss or with loss close to zero. The receiving bypass 220 supports the transmission of the communication signal, and does not need to amplify and filter the signal, which can further save unnecessary loss and meet the communication requirements of ultra-low loss.

[0063] Therefore, by respectively setting the receiving module 210 and the receiving bypass 220, and by switching the connection state between the receiving bypass 220 and the receiving module 210, the functions of low-noise amplification processing and transmission processing of the communication signal can be switched to match different communication requirements.

[0064] It should be noted that in the above embodiments, the radio frequency circuit 20 is mainly exemplified as having receiving function. In other embodiments, the radio frequency circuit 20 can be configured with other functions based on the actual needs of the radio frequency system. The following will be further explained by several examples:

[0065] In some embodiments, as shown in Figure 7 ​As shown, the radio frequency channel group also includes a transmit channel (TX in the figure), which is used to provide the communication signal to be transmitted to the radio frequency circuit 20.

[0066] The first radio frequency circuit F1 is also configured with a transmit port (Txi in the figure), which is connected to the transmit channel. The first radio frequency circuit F1 also includes a gating module 230 and a transmit module 240. The gating module 230 is connected to the antenna port (Ant1 in the figure) and the receiver module 210, respectively. The transmit module 240 is connected to the transmit port and the gating module 230, respectively.

[0067] The transmitting module 240 is used to process the communication signals input from the transmitting channel at the transmitting port. The transmission processing may include, for example, power amplification, power amplification combined with filtering, or simply signal transmission.

[0068] The gating module 230 is used to select the connection between either the transmitting module 240 or the receiving module 210 and the antenna port. When the gating module 230 selects the connection between the transmitting module 240 and the antenna port, the transmitting module 240 can process the communication signal output from the transmitting channel and output it to the antenna port, where it is transmitted by the antenna connected to the antenna port, thereby achieving transmission control of the communication signal. When the gating module 230 selects the connection between the receiving module 210 and the antenna port, the receiving module 210 can receive the communication signal received by the antenna through the antenna port, process the communication signal, and transmit it to the aggregation circuit 30 through the receiving output port, thereby achieving reception control of the communication signal.

[0069] Therefore, by using the selection module 230 to select and enable the connection between the transmitting module 240 and the receiving module 210 and the antenna port respectively, the connection between the target module and the antenna can be selected, thereby realizing the transmit / receive switching function of the first radio frequency circuit F1.

[0070] In some embodiments, such as Figure 8 As shown, the transmission module 240 includes a first transmission unit 241, a second transmission unit 242, and a transmission gating unit 243.

[0071] The first transmitting unit 241 is configured to perform power amplification processing and filtering processing on the communication signal; and the second transmitting unit 242 is configured to perform power amplification processing on the communication signal. The first transmitting unit 241 not only supports amplification processing on the signal, but also additionally adds filtering processing, which can meet the communication demand of high power; the second transmitting unit 242 supports amplification processing on the signal, and the linearity of the second transmitting unit 242 itself is sufficient, and the surplus of the harmonic of the second transmitting unit 242 is sufficient and does not need to be filtered, so that the filtering processing does not need to be additionally added, thereby saving the redundant loss, and the communication demand of high signal strength can be met. Therefore, different transmitting units can support different signal level requirements of transmitting processing, so as to be suitable for different communication demands.

[0072] The transmitting gating unit 243 is connected with the transmitting port, the first transmitting unit 241 and the second transmitting unit 242, and is configured to select the connection between the target transmitting unit and the transmitting port, the target transmitting unit including one of the first transmitting unit 241 and the second transmitting unit 242.

[0073] Therefore, by selecting and switching the connection between the first transmitting unit 241 and the second transmitting unit 242 and the transmitting port through the transmitting gating unit 243, any one of the first transmitting unit 241 and the second transmitting unit 242 can perform transmitting processing on the communication signal to be transmitted under different communication demands, support transmitting processing of different signal level requirements, and reduce the loss of the transmitting module 240 as a whole on the basis of being suitable for different communication demands.

[0074] For example, the power mode corresponding to the second transmitting unit 242 is lower than that corresponding to the first transmitting unit 241. The first transmitting unit 241 has a higher power mode level than the second transmitting unit 242, and through amplification and filtering, a higher gain communication signal can be obtained. The second transmitting unit 242 has a lower power mode level than the first transmitting unit 241, but its linearity is sufficient, and no additional filtering is required, so a higher strength communication signal can be obtained. The transmit gating unit 243 can selectively connect the target transmitting unit and the transmit port according to the power mode requirements, and can select the transmit path that matches the target power mode requirements, thereby reducing channel loss while meeting the corresponding mode requirements. For example, the first transmitting unit 241 can correspond to a high / medium power mode (HPM / MPM) channel, for example, by using a high / medium power mode power amplifier and filter to realize the high / medium power amplification and filtering function of the communication signal, for example, to meet the communication requirements of more than 15dBm; the second transmitting unit 242 can correspond to a low power mode (LPM) channel, for example, by using a low-to-medium power mode power amplifier to realize the low power amplification function of the communication signal, for example, to meet the communication requirements of 0-15dBm.

[0075] For example, the power mode corresponding to the second transmitting unit 242 is the same as that corresponding to the first transmitting unit 241, for example, the signal can be amplified with the same amplification power. The first transmitting unit 241 additionally introduces a signal filtering function, which can achieve a high level of interference suppression and is suitable for communication scenarios with a high degree of signal interference; the second transmitting unit 242 does not need to introduce an additional signal filtering function, and can be used in some scenarios where the improvement in path performance can be achieved by sacrificing the filtering loss at the front end. The transmitting gating unit 243 selectively connects the target transmitting path and the transmitting port according to the communication scenario, and can select the transmitting path that matches the target communication scenario, thereby reducing channel loss while meeting the requirements of the corresponding communication scenario.

[0076] For example, such as Figure 9 As shown, the transmitting module 240 may further include a transmitting bypass 244, which is connected to the transmitting gating unit 243 and the gating module 230 respectively to realize the transmission of the first communication signal. The transmitting gating unit 243 is used to select and connect any one of the first transmitting unit 241, the second transmitting unit 242 and the transmitting bypass 244 to the transmitting port.

[0077] Exemplarily, when the radio frequency circuit 20 is packaged as an integrated device, the radio frequency circuit 20 can be understood as a FEM (Front-end Module), and further, taking the WIFI mode as an example, the radio frequency device can be a WIFI FEM, that is, a front-end integrated module for WIFI.

[0078] It should be noted that in the above embodiments, some embodiments of the radio frequency circuit 20 are integrated devices, and some functional devices can be added inside the integrated device according to actual needs to realize corresponding functions; in other embodiments, the radio frequency circuit 20 can also include discrete devices to reduce the overall hardware cost of the radio frequency system. The following is an example for further explanation and description:

[0079] In some embodiments, as shown in Figure 10 The second radio frequency circuit F2 of the at least two radio frequency circuits 20 includes a filter module 250 and a low-noise amplification module 260.

[0080] The filter module 250 is connected with the antenna and is configured to perform filtering processing on the communication signal received by the antenna. The filter module 250 can be a SAW (Surface Acoustic Wave) filter, for example, which only allows communication signals of a preset frequency band to pass through to eliminate the spurs or harmonics of the main wave sideband. The filter can be a band-pass filter, a low-pass filter, etc.

[0081] The low-noise amplification module 260 is connected with the aggregation circuit 30 and the filter module 250, respectively, and is configured to perform low-noise amplification processing on the communication signal subjected to filtering processing. The low-noise amplification module 260 can include one low-noise amplifier or two low-noise amplifiers, for example, to realize two-stage low-noise amplification processing.

[0082] In this embodiment, the discrete filter module 250 and the low-noise amplification module 260 have lower cost than the integrated radio frequency device, and thus the single receiving circuit of the discrete device can realize receiving processing while optimizing the cost of the radio frequency circuit 20.

[0083] Exemplarily, the at least two radio frequency circuits 20 include at least one integrated first radio frequency circuit F1 and at least one second radio frequency circuit F2 in the form of a discrete device, and the two types of circuits are combined with each other to simultaneously realize cost reduction and performance optimization.

[0084] In some embodiments, as shown in Figure 11 Figure 11 ​The first radio frequency circuit F1 further includes a gating module 230 and a transmitting module 240, and the transmitting module 240 includes a first transmitting unit 241, a second transmitting unit 242, and a transmitting gating unit 243 (as an example). The radio frequency system includes two radio frequency modules, each of which includes an aggregation circuit 30, a first radio frequency circuit F1, and a second radio frequency circuit F2. Each second radio frequency circuit F2 includes a filtering module 250 and a low-noise amplification module 260. Thus, the radio frequency system can realize high-order diversity of communication signals and simultaneously reduce costs and optimize receiving performance through the mutual combination of two integrated first radio frequency circuits F1 and two second radio frequency circuits F2 in the form of discrete devices.

[0085] In some embodiments, as shown in Figure 12 The two aggregation circuits 30 in the radio frequency system are integrated inside the radio frequency transceiver 10, and the radio frequency transceiver 10 is configured with four input ports. The first end of each aggregation circuit 30 is connected to a receiving channel, and the two second ends of each aggregation circuit 30 are respectively connected to two input ports. Each aggregation circuit 30 is connected to a first radio frequency circuit F1 through one of the input ports and to a second radio frequency circuit F2 through the other input port. The input ports connected by the two aggregation circuits 30 are different.

[0086] Through the connection between the two aggregation circuits 30 integrated inside the radio frequency transceiver 10 and the four input ports, and the connection between the four input ports and the corresponding first radio frequency circuits F1 and second radio frequency circuits F2, each aggregation circuit 30 can aggregate the signals received and processed by a first radio frequency circuit F1 and a second radio frequency circuit F2. On the one hand, the two aggregation circuits 30 correspond to two receiving channels of the same radio frequency channel group and cooperate with each other. By integrating the two aggregation circuits 30 directly inside the radio frequency transceiver 10, the transmission path between each aggregation circuit 30 and the receiving channel can be shortened, and interference that may exist at the interface position of the discrete aggregation circuit 30 and the radio frequency transceiver 10 in the receiving channel can be avoided, reducing the waste of signal energy. On the other hand, by integrating the aggregation circuit 30 inside the radio frequency transceiver 10, the integration degree of the radio frequency transceiver 10 can be realized, and the aggregation function of the radio frequency transceiver 10 can be expanded, simplifying the peripheral structure while meeting the performance improvement.

[0087] In some embodiments, the number of receiving channels and radio frequency modules is multiple, and the aggregation circuit 30 of each radio frequency module is connected to a receiving channel. Through multiple radio frequency modules and multiple receiving channels, the performance of more receiving channels can be improved to realize higher-order diversity reception, further improving the overall communication function of the radio frequency system.

[0088] In some embodiments, as shown in Figure 13As shown, the radio frequency channel group further includes a transmitting channel, and the number of the radio frequency modules is two; each radio frequency module includes a first radio frequency circuit F1 and a second radio frequency circuit F2.

[0089] The first radio frequency circuit F1 is connected with an antenna, the transmitting channel and the aggregation circuit 30 respectively, and is configured to support transmitting processing and receiving processing of the communication signal; the second radio frequency circuit F2 is connected with another antenna and the aggregation circuit 30 respectively, and is configured to support receiving processing of the communication signal. The related definitions of the first radio frequency circuit F1 and the second radio frequency circuit F2 can refer to the above-mentioned embodiments, and will not be described here.

[0090] The radio frequency transceiver 10 is configured to output the communication signal to the first radio frequency circuit F1 in at least one radio frequency module, and is further configured to receive the communication signal processed by the first radio frequency circuit F1 and the second radio frequency circuit F2 in each radio frequency module. Thus, the radio frequency system can at least support one-way transmission and multi-way receiving of the communication signal, and realize the functions of transmitting and receiving processing, such as 1T4R or 1T2R*2 transmitting and receiving processing.

[0091] In some embodiments, the aggregation circuit 30 can include a power divider, and a first end of the power divider is connected with the receiving channel, and a plurality of second ends of the power divider are connected with the at least two radio frequency circuits 20 respectively.

[0092] The power divider is configured to support distributing a radio frequency signal to be transmitted to a plurality of output ports according to a preset energy ratio, or aggregating the energy of a plurality of received signals to one output. The embodiment mainly utilizes the reverse aggregation function of the power divider. The hardware cost of the power divider is low, and due to its reverse aggregation function, the radio frequency system does not need to be additionally customized in the application process. In addition, the power divider has a standardized interface and a general radio frequency impedance design, which can be directly adapted to the connection with the existing radio frequency circuit 20 without the need to redesign the radio frequency circuit 20. Thus, by using the power divider, the scale application of the radio frequency system can be expanded on the basis of realizing the signal aggregation function.

[0093] Exemplarily, the aggregation circuit 30 can select a two-way power divider, a three-way power divider, a four-way power divider, etc. according to actual application. Exemplarily, the radio frequency module includes two radio frequency circuits 20, and the aggregation circuit 30 can include a two-way power divider; exemplarily, the radio frequency module includes three or more radio frequency circuits 20, and the aggregation circuit 30 can include a plurality of two-way power dividers, which are combined to realize the aggregation of a plurality of signals.

[0094] For example, as shown in FIG. 6, the radio frequency system includes two radio frequency modules, and each radio frequency module includes two radio frequency circuits 20. The aggregation circuit 30 includes a two-way power divider, and the two-way power divider is connected with the two radio frequency circuits 20 in each radio frequency module. Figure 14As shown, when it is necessary to aggregate the communication signals received by the four-channel radio frequency circuit 20, the aggregation circuit 30 may include three power dividers. Two power dividers aggregate the two input signals into two intermediate signals respectively, and the third power divider further aggregates the two intermediate signals output from the first two stages into one final output, thereby realizing the superposition of the four signals.

[0095] Compared to multi-port models such as three-port and four-port power dividers, dual-port power dividers have a simpler structure, lower cost, less loss, and higher efficiency. At the same time, they are highly adaptable and can be easily integrated into RF transceivers 10 and RF circuits 20.

[0096] In other embodiments, the aggregation circuit 30 may also include other hardware circuits such as a frequency combiner and a power combiner, which will not be described in detail in this embodiment.

[0097] In some embodiments, the communication signal includes any one of 5G Wi-Fi signal, 2.4G Wi-Fi signal, 5G BT signal, and 2.4G BT signal. When the radio frequency circuit 20 supports the 5G Wi-Fi standard, the communication signal can be a 5G Wi-Fi signal; when the radio frequency circuit 20 supports the 2.4G Wi-Fi standard, the communication signal can be a 2.4G Wi-Fi signal. Therefore, this embodiment, through the aggregation processing of at least two radio frequency circuits 20 by the aggregation circuit 30, can improve the reception quality of any one of the 5G Wi-Fi signal, 2.4G Wi-Fi signal, 5G BT signal, and 2.4G BT signal.

[0098] The following comparison of 5G WIFI standard, related technical embodiments, and embodiments of this application further explains the above embodiments (for ease of comparison, except for aggregation circuit 30, other features are illustrated with reference to the embodiments of this application, which are only illustrative and do not represent that features other than aggregation circuit 30 are disclosed in the embodiments of this application. In the figure, 270 is a coupling module, and the figure illustrates the optional devices of each circuit and module. The connection relationship of the optional devices is shown in the figure):

[0099] Related technical embodiments:

[0100] like Figure 15 As shown, the radio frequency system includes four radio frequency circuits 20, Chain0 / 1 / 2 / 3. The four radio frequency circuits 20 correspond to the four receiving channels of two radio frequency channel groups (the first radio frequency channel group and the second radio frequency channel group in the figure, respectively). Chain0 / 1 belongs to the same radio frequency channel group, while Chain2 / 3 belongs to another radio frequency channel group. The two radio frequency channel groups are independent of each other, and the four radio frequency circuits 20 are independent of each other.

[0101] Example 1 of this application:

[0102] As Figure 16 shown, the radio frequency system includes Chain0 / 1 / 2 / 3 four-way radio frequency circuit 20, corresponding to a radio frequency channel group (such as the first radio frequency channel group in the figure) respectively, wherein the 5G WIFI signal received by the radio frequency circuit 20 corresponding to Chain0 / 2 is aggregated through a two-way power divider, and the 5G WIFI signal received by the radio frequency circuit 20 corresponding to Chain1 / 3 is aggregated through a two-way power divider.

[0103] In this embodiment, the radio frequency system can realize 5G WIFI high-order diversity, and can realize 1T4R and 1T2R*2 transceiving functions.

[0104] Among them, for the 1T4R architecture, 1T can be understood as one-way transmission, and the transmission path can be optional in Chain0 / 1, and 4R can be understood as four-way reception, and the four-way reception path includes Chain0 / 1 / 2 / 3 aggregation to improve reception performance. Under this structure, compared with the related art embodiment, the transmission path can not be modified or improved, mainly in that Chain0 / 3 is aggregated through a two-way power divider to one receiving channel, and Chain1 / 2 is aggregated through a two-way power divider to another receiving channel. The performance improvement lies in that the original Chain0 increases a Chain3 to realize performance improvement, and the Chain1 increases a Chain2 to realize performance improvement. For details, refer to Table 1:

[0105] Table 1

[0106]

[0107] Among them, for the 1T2R*2 architecture, compared with the related art embodiment, the transmission path is still Chain0 / 1, and the reception path is to increase one receiving path in each of the original single receiving path to realize reception performance improvement. Under this architecture, the first transmission path (Chain0) and the second transmission path (Chain1) are completely independent and can work independently in parallel. The first receiving path includes Chain0 and Chain3, and the second receiving path includes Chain1 and Chain2. For details, refer to Table 2:

[0108] Table 2

[0109]

[0110]

[0111] Embodiment 2 of the present application:

[0112] As Figure 17As shown, the two power dividers are integrated inside the wireless receiver of the RF transceiver 10, which simplifies the peripheral structure of the RF transceiver 10 while improving 5G WIFI performance.

[0113] This application also provides an electronic device, including a radio frequency system as described in any one or a combination of the above embodiments. Based on the radio frequency system of any of the above embodiments, the electronic device can improve the communication connection performance with a single communication server and also reduce hardware costs.

[0114] like Figure 18 As shown, further, taking the aforementioned electronic device as mobile phone 11 as an example for explanation, specifically, as follows... Figure 18 As shown, the mobile phone 11 may include a memory 21 (which optionally includes one or more computer-readable storage media), a processor 22, a peripheral device interface 23, a radio frequency system 24 as described in the above embodiments, and an input / output (I / O) subsystem 26. These components optionally communicate via one or more communication buses or signal lines 29. Those skilled in the art will understand that... Figure 18 The mobile phone 11 shown does not constitute a limitation on the mobile phone and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Figure 18 The various components shown are implemented in hardware, software, or a combination of both, including one or more signal processing and / or application-specific integrated circuits.

[0115] Memory 21 optionally includes high-speed random access memory, and also optionally includes non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Exemplary examples include software components stored in memory 21 such as an operating system 211, a communication module (or instruction set) 212, a global positioning system (GPS) module (or instruction set) 213, etc.

[0116] The processor 22 and other control circuits can be used to control the operation of the mobile phone 11. The processor 22 can be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application-specific integrated circuits, etc.

[0117] The processor 22 can be configured to implement control algorithms for controlling the use of the antenna in the mobile phone 11. The processor 22 can also issue control commands for controlling various switches in the radio frequency system 24.

[0118] The I / O subsystem 26 couples input / output peripherals on the phone 11, such as a keyboard and other input controls, to the peripherals interface 23. The I / O subsystem 26 optionally includes a touch screen, button, tone generators, an accelerometer (motion sensor), a proximity sensor, and other sensors, light emitting diodes and other status indicators, a data port, and so forth. An output device of the I / O subsystem 26, such as a speaker, can be used to output audio information. An input device of the I / O subsystem 26, such as a microphone, can be used to input audio information. The I / O subsystem 26 can also include a power supply for the peripherals, to facilitate the use of the peripherals on the phone 11.

[0119] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features of the above embodiments are described, however, it is to be understood that the scope of the present specification includes all possible combinations of the technical features.

[0120] The above embodiments only express several implementation manners of the present application, and the description is specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A radio frequency system, characterized by The application relates to a radio frequency transceiver and a radio frequency module. The radio frequency transceiver comprises a radio frequency channel group, and the radio frequency channel group comprises a receiving channel. The radio frequency module comprises: at least two radio frequency circuits, each of which is connected with an antenna and used for receiving and processing a wireless short-distance mode communication signal received by the antenna; an aggregation circuit used for aggregating and processing the communication signals received and processed by the at least two radio frequency circuits and transmitting the communication signals to the receiving channel.

2. The radio frequency system of claim 1, wherein, The aggregation circuit is integrated in the radio frequency transceiver, the radio frequency transceiver is provided with at least two input ports, and the at least two input ports are connected with the at least two radio frequency circuits correspondingly; wherein a first end of the aggregation circuit is connected with the receiving channel, and at least two second ends of the aggregation circuit are connected with the at least two input ports respectively.

3. The radio frequency system of claim 1, wherein, The aggregation circuit is integrated in a first radio frequency circuit in the at least two radio frequency circuits, the first radio frequency circuit is provided with an antenna port, a receiving output port and a plurality of receiving input ports, the antenna port is connected with the antenna, the receiving output port is connected with the receiving channel, and the plurality of receiving input ports are connected with a plurality of second radio frequency circuits correspondingly, the second radio frequency circuits being circuits other than the first radio frequency circuit in the at least two radio frequency circuits; wherein the first radio frequency circuit comprises the aggregation circuit and a receiving module, the receiving module is connected with the antenna port and the aggregation circuit respectively, and the aggregation circuit is connected with the receiving output port and the plurality of receiving input ports respectively, and the receiving module is used for receiving and processing the communication signal received by the antenna port.

4. The radio frequency system of claim 1, wherein, At least one first radio frequency circuit in the at least two radio frequency circuits is provided with an antenna port and a receiving output port, the antenna port is connected with the antenna, and the receiving output port is connected with the aggregation circuit; wherein the first radio frequency circuit comprises a receiving module, the receiving module is connected with the antenna port and the receiving output port respectively, and the receiving module is used for receiving and processing the communication signal received by the antenna.

5. The radio frequency system of claim 3 or 4, wherein, The receiving module is used for low-noise amplification processing of the communication signal, and the first radio frequency circuit further comprises: a receiving bypass connected with two ends of the receiving module respectively, used for bypassing the receiving module and transmitting the communication signal when the two ends of the receiving module are connected.

6. The radio frequency system of claim 3 or 4, wherein, The radio frequency channel group further comprises a transmitting channel, the first radio frequency circuit is further provided with a transmitting port, the transmitting port is connected with the transmitting channel, and the first radio frequency circuit further comprises: a gating module connected with the antenna port and the receiving module respectively; a transmitting module connected with the transmitting port and the gating module respectively, used for transmitting and processing the communication signal input by the transmitting port; wherein the gating module is used for selecting to connect any one of the transmitting module and the receiving module with the antenna port.

7. The radio frequency system of claim 6, wherein, The transmitting module comprises: a first transmitting unit connected with the gating module, used for power amplification processing and filtering processing of the communication signal. A second transmitting unit, connected with the gating module, is configured to perform power amplification processing on the communication signal. A transmitting gating unit is connected with the transmitting port, the first transmitting unit and the second transmitting unit respectively, and is configured to select the connection between the target transmitting unit and the transmitting port, the target transmitting unit including one of the first transmitting unit and the second transmitting unit.

8. The radio frequency system of claim 3 or 4, wherein, The second radio frequency circuit in the at least two radio frequency circuits includes: A filtering module, connected with the antenna, is configured to perform filtering processing on the communication signal received by the antenna. A low-noise amplification module is connected with the aggregation circuit and the filtering module respectively, and is configured to perform low-noise amplification processing on the communication signal after filtering processing.

9. The radio frequency system of claim 8, wherein, The radio frequency system includes two radio frequency modules, each of which includes an aggregation circuit, a first radio frequency circuit and a second radio frequency circuit.

10. The radio frequency system of claim 9, wherein, The two aggregation circuits in the radio frequency system are integrated in the radio frequency transceiver, and the radio frequency transceiver is configured with four input ports. The first end of each aggregation circuit is connected with a receiving channel in the radio frequency channel group, and the two second ends of each aggregation circuit are connected with two input ports respectively, each aggregation circuit being connected with the first radio frequency circuit through one of the input ports and being connected with the second radio frequency circuit through the other input port; the input ports connected by the two aggregation circuits are different.

11. The radio frequency system of claim 1, wherein, The number of receiving channels and radio frequency modules is multiple, and the aggregation circuit of each radio frequency module is connected with a receiving channel.

12. The radio frequency system of claim 10, wherein, The radio frequency channel group further includes a transmitting channel, and the number of radio frequency modules is two. Each radio frequency module includes: A first radio frequency circuit is connected with an antenna, a transmitting channel and an aggregation circuit respectively, and is configured to support transmitting processing and receiving processing of the communication signal. A second radio frequency circuit is connected with another antenna and an aggregation circuit respectively, and is configured to support receiving processing of the communication signal. The radio frequency transceiver is configured to output the communication signal to the first radio frequency circuit in at least one radio frequency module, and is further configured to receive the communication signal received by the first radio frequency circuit and the second radio frequency circuit in each radio frequency module.

13. The radio frequency system of claim 1, wherein, The aggregation circuit includes a power divider, a first end of the power divider being connected with the receiving channel, and a plurality of second ends of the power divider being connected with the at least two radio frequency circuits respectively.

14. The radio frequency system of claim 1, wherein, The communication signal includes any one of 5G WIFI signal, 2.4G WIFI signal, 5G BT signal and 2.4G BT signal.

15. An electronic device, comprising: The radio frequency system includes: The radio frequency system includes: The radio frequency system includes:

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