CN114928387B

CN114928387B - MIMO receiving device of antenna and terminal equipment

Info

Publication number: CN114928387B
Application number: CN202210320374.6A
Authority: CN
Inventors: 孙江涛; 黄清华
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2023-09-08
Anticipated expiration: 2042-03-29
Also published as: CN117040582A; CN114928387A

Abstract

The application provides an MIMO receiving device of an antenna and terminal equipment, and relates to the technical field of terminals. The device comprises: the first end of the first receiving channel is connected with the first antenna, and the second end of the first receiving channel is connected with a first receiving channel of the receiver; the first end of the second receiving path is connected with the second antenna, and the second end of the second receiving path is connected with a second receiving channel of the receiver; the first receive path includes: a first set of multiplexing switches, a first N77 filter, and a first N79 filter; the second receive path includes: a second set of multiplexing switches, a second N77 filter, and a second N79 filter; the first group of multiplexing switches are used for selecting the first N77 filter or the first N79 filter to be communicated with the first antenna; the second set of multiplexing switches is used to select a second N77 filter or a second N79 filter to be turned on with the second antenna. The device realizes the integrated design of 2N 77 and 2N 79, and the integration level saves the cost.

Description

MIMO receiving device of antenna and terminal equipment

Technical Field

The present application relates to the field of terminal devices, and in particular, to an antenna MIMO receiving apparatus and a terminal device.

Background

Currently, with the development of mobile phones, many mobile phones can be dual-card and dual-standby, and can support different operators, such as any two of mobile, telecom and Unicom. Differentiated from the communication bands, for example, include N777, N78, and N79. For low-grade mobile phones, N77 uplink single stream and downlink four streams, namely a sending channel and four receiving channels, are generally supported, wherein the uplink represents sending and the downlink represents receiving. But for high-end handsets, support for N77 upstream and downstream, and N79 upstream and downstream is required.

At present, the receiving modules of N77 and N79 in the market are generally independently developed, packaged and tested by different manufacturers, for example, three independent receiving modules are needed for configuration needed by high-grade mobile phones, but the three independent receiving modules are different in size and pin by different manufacturers, cannot be compatible, cannot reuse chips and design, and have high cost.

Disclosure of Invention

In order to solve the above problems, the present application provides an MIMO receiving apparatus and a terminal device for an antenna, which can save the number of modules, reuse chips and design, and have low cost.

The application provides an MIMO receiving device of an antenna, which comprises the following two independent receiving paths with the same structure: a first receive path and a second receive path; the first end of the first receiving path is used for being connected with the first antenna, and the second end of the first receiving path is used for being connected with a first receiving channel of the receiver; the first end of the second receiving path is used for connecting with a second antenna, and the second end of the second receiving path is used for connecting with a second receiving channel of the receiver; the first receive path includes: a first set of multiplexing switches, a first N77 filter, and a first N79 filter; the second receive path includes: a second set of multiplexing switches, a second N77 filter, and a second N79 filter; the first group of multiplexing switches are used for selecting the first N77 filter or the first N79 filter to be communicated with the first antenna; the second set of multiplexing switches is used to select a second N77 filter or a second N79 filter to be turned on with the second antenna.

By using the two MIMO receiving devices provided by the application, four N77 receiving channels and four N79 receiving channels can be realized, compared with the traditional MIMO receiving module, one independent module can be used less when a downlink four-stream channel is provided for high-grade terminal equipment, thereby saving the cost. The receiving device can realize the normalization design of a plurality of MIMO receiving modules in the prior art, so that the design is simpler and the universality is better. In addition, the MIMO receiving apparatus provided by the embodiment of the present application uses only one filter on the receiving link, whether N77 or N79, so that the front-end noise coefficient can be effectively reduced, and the sensitivity can be improved.

In one possible implementation, the first set of multiplexing switches includes: a first multiplexing switch and a second multiplexing switch; the fixed end of the first multi-path selection switch is used for connecting with a first antenna; the first selection end of the first multiplexing switch is connected with the first end of the first N77 filter, and the second selection end of the first multiplexing switch is connected with the first end of the first N79 filter; the second end of the first N77 filter is connected with the first selection end of the second multi-path selection switch, the second end of the first N79 filter is connected with the second selection end of the second multi-path selection switch, and the fixed end of the second multi-path selection switch is connected with the first receiving channel.

In one possible implementation, the first receive path further includes: a first impedance matching network corresponding to the first N77 filter; the first impedance matching network is connected between the second terminal of the first N77 filter and the first selection terminal of the second multiplexing switch.

In order to reduce noise and increase signal sensitivity, in one possible implementation, the first receive path further comprises: a first low noise amplifier; the first end of the first low noise amplifier is connected with the fixed end of the second multiplexing switch, and the second end of the first low noise amplifier is used for being connected with the first receiving channel.

In order to improve the signal-to-noise ratio of the N77 receive channel, in one possible implementation, the first receive path further includes: a first bypass path; the first end of the first bypass path is connected with the third selection end of the first multi-path selection switch, and the second end of the first bypass path is connected with the third selection end of the second multi-path selection switch.

In one possible implementation, the second set of multiplexing switches includes: a third multiplexing switch and a fourth multiplexing switch; the fixed end of the third multi-path selection switch is used for connecting the second antenna; the first selection end of the third multiplexing switch is connected with the first end of the second N77 filter, and the second selection end of the third multiplexing switch is connected with the first end of the second N79 filter; the second end of the second N77 filter is connected with the first selection end of the fourth multi-path selection switch, the second end of the second N79 filter is connected with the second selection end of the fourth multi-path selection switch, and the fixed end of the fourth multi-path selection switch is connected with the second receiving channel.

In one possible implementation, the second receive path further includes: a second impedance matching network corresponding to the second N77 filter; the second impedance matching network is connected between the second end of the second N77 filter and the first select terminal of the fourth multiplexing switch.

In order to reduce noise and increase signal sensitivity, in one possible implementation, the second receive path further comprises: a second low noise amplifier; the first end of the second low noise amplifier is connected with the fixed end of the fourth multiplexing switch, and the second end of the second low noise amplifier is used for being connected with the second receiving channel.

In order to improve the signal-to-noise ratio of the N77 receive channel, in one possible implementation, the second receive path further comprises: a second bypass path; the first end of the second bypass path is connected with the third selection end of the third multiplexing switch, and the second end of the second bypass path is connected with the third selection end of the fourth multiplexing switch.

In one possible implementation, the first set of multiplexing switches, the first N77 filter, the second set of multiplexing switches, and the second N77 filter are integrated inside the SIP module, and the first N79 filter and the second N79 filter are disposed outside the SIP module.

In one possible implementation, the method further includes: an antenna switch module; the first end and the second end of the antenna switch module are respectively connected with the first antenna and the second antenna; the third end and the fourth end of the antenna switch module are respectively connected with the first receiving path and the second receiving path.

The application also provides a terminal device which comprises the MIMO receiving device; further comprises: a first antenna, a second antenna, and a receiver; the first input end and the second input end of the MIMO receiving device are respectively connected with the first antenna and the second antenna, and the first output end and the second output end of the receiving device are respectively connected with a first receiving channel and a second receiving channel of the receiver; MIMO receiving means for providing two N77 receiving paths and two N79 receiving paths.

Compared with the prior art, the application has the following advantages:

the MIMO receiving device provided by the embodiment of the application comprises two N77 receiving channels and two N79 receiving channels, and can realize the two-way receiving MIMO function of N77 and the two-way receiving MIMO function of N79 through the selection of the multi-way selection switch. Therefore, the four N77 receiving channels and the four N79 receiving channels can be realized by using the MIMO receiving device provided by the application, and compared with the traditional MIMO receiving module, the MIMO receiving device can save cost by using one independent module when providing a downlink four-stream channel for high-grade terminal equipment. The receiving device can realize the normalization design of a plurality of MIMO receiving modules in the prior art, so that the design is simpler and the universality is better. In addition, the MIMO receiving apparatus provided by the embodiment of the present application uses only one filter on the receiving link, whether N77 or N79, so that the front-end noise coefficient can be effectively reduced, and the sensitivity can be improved.

Drawings

Fig. 1 is a schematic diagram of a terminal device according to an embodiment of the present application;

fig. 2 is a schematic diagram of an MIMO receiving apparatus of an antenna according to an embodiment of the present application;

fig. 3 is a schematic diagram of yet another MIMO receiving apparatus according to an embodiment of the present application;

fig. 4 is a schematic diagram of a terminal device according to an embodiment of the present application.

Detailed Description

In order to make the technical personnel in the technical field more clearly understand the scheme of the application, the application scenario of the technical scheme of the application is first described below.

The technical scheme provided by the embodiment of the application is applied to the mobile phone antenna, in particular to the MIMO receiving module of the mobile phone.

Referring to fig. 1, the diagram is a schematic diagram of a terminal device provided in an embodiment of the present application.

Terminal device 100 may include a processor 110, and processor 110 may include one or more processing units, such as: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish the control of instruction fetching and instruction execution.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Repeated accesses are avoided and the latency of the processor 110 is reduced, thereby improving the efficiency of the system.

The wireless communication module 160 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN) (e.g., wireless fidelity (wireless fidelity, wi-Fi) network), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field wireless communication technology (near field communication, NFC), infrared technology (IR), etc., applied to the terminal device 100. The wireless communication module 160 may be one or more devices that integrate at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, modulates the electromagnetic wave signals, filters the electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, frequency modulate it, amplify it, and convert it to electromagnetic waves for radiation via the antenna 2.

In some embodiments, antenna 1 and mobile communication module 150 of terminal device 100 are coupled, and antenna 2 and wireless communication module 160 are coupled, such that terminal device 100 may communicate with a network and other devices via wireless communication techniques. The wireless communication techniques may include the Global System for Mobile communications (global system for mobile communications, GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and/or IR techniques, among others. The GNSS may include a global satellite positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a beidou satellite navigation system (beidou navigation satellite system, BDS), a quasi zenith satellite system (quasi-zenith satellite system, QZSS) and/or a satellite based augmentation system (satellite based augmentation systems, SBAS).

Referring to table 1, the diagram is a schematic diagram of a module required when the antenna of the terminal device implements different frequency bands.

Module 1-1T2R interpretation: uplink single flow and downlink double flow, 1 TX and 2 RX are integrated in the module;

module 3-2R interpretation: the downlink double flow, 2 RX are integrated in the module;

module 5-1R interpretation: the downlink single stream, only 1 RX is integrated in each frequency band of the module;

for example, for a high-end mobile phone, an N77 uplink single flow, a downlink four flow, and an N79 uplink single flow, a downlink four flow need to be implemented, one implementation way is: the modules 3-N77 2R, 4-N79 2R and 5-N77 1R/N79 1R are three independent modules (different in size, different in pins and incompatible), and need to be independently developed, independently packaged and independently tested by manufacturers, so that a module research and development end cannot reuse chips, a module use end cannot share a board design, and upstream to downstream development cost is high.

In order to solve the above technical problems, the embodiment of the present application provides a MIMO receiving apparatus, which can meet the needs of high-grade mobile phones, and can realize the normalized design of the module 3, the module 4 and the module 5, without using a plurality of different independent modules, and can provide uplink single-flow and downlink four-flow channels, namely 1T4R: upstream single flow and downstream four flows.

Device embodiment

In order to enable those skilled in the art to better understand the technical solutions provided by the embodiments of the present application, the following detailed description is provided with reference to the accompanying drawings.

Referring to fig. 2, a schematic diagram of an MIMO receiving apparatus of an antenna according to an embodiment of the present application is shown.

The MIMO receiving apparatus of the antenna provided in this embodiment includes the following two independent and structurally identical receiving paths: a first receive path and a second receive path; a first end of the first receiving path is used for being connected with a first antenna ANT1, and a second end of the first receiving path is used for being connected with a first receiving channel RX_1 of a receiver; the first end of the second receiving path is used for being connected with a second antenna ANT2, and the second end of the second receiving path is used for being connected with a second receiving channel RX_2 of the receiver;

the first receive path includes: a first set of multiplexing switches, a first N77 filter N77F1 and a first N79 filter N79F1.

The first group of multiplexing switches is used for selecting the first N77 filter N77F1 or the first N79 filter N79F1 to be connected with the first antenna ANT1; wherein the first set of multiplexing switches comprises a first multiplexing switch SW1 and a second multiplexing switch SW2. As shown in fig. 2, the first multiplexing switch SW1 is responsible for selecting whether the first antenna ANT1 is turned on with the first N77 filter N77F1 or whether the first antenna ANT1 is turned on with the first N79 filter N79F1. The second multiplexer SW2 is responsible for selecting whether the first N77 filter N77F1 is turned on with the first receiving channel rx_1 or whether the first N79 filter N79F1 is turned on with the first receiving channel rx_1.

The second receive path includes: a second set of multiplexing switches, a second N77 filter N77F2 and a second N79 filter N79F2.

The second group of multiplexing switches is used for selecting the second N77 filter N77F2 or the second N79 filter N79F2 to be connected with the second antenna ANT 2. Wherein the second set of multiplexing switches comprises a third multiplexing switch SW3 and a fourth multiplexing switch SW4. As shown in fig. 2, the third multiplexing switch SW3 is responsible for selecting whether the second antenna ANT2 is turned on with the second N77 filter N77F2 or whether the second antenna ANT2 is turned on with the second N79 filter N79F2. The fourth multiplexer SW4 is responsible for selecting whether the second N77 filter N77F2 is turned on with the second receiving channel rx_2 or whether the second N79 filter N79F2 is turned on with the second receiving channel rx_2.

As shown in fig. 2, description is made of any one of the reception paths, for example, a signal is received from the pin of the second antenna ANT2, and passes through SW3; the following two paths are switched by the SW3 according to the requirements: the second N79 filter N79F2 and the second N77 filters N77F2, SW3 and SW4 are simultaneously switched to the second N79 filter N79F2 and then connected to RX_2 through the fixed end of SW4, so that a complete N79 downlink path from ANT2 to RX_2 is formed. The working principle of other paths is similar, and the description is omitted here, and a complete N79 downlink path from ANT1 to RX_1 can be formed.

The MIMO receiving device provided by the embodiment of the application comprises two N77 receiving channels and two N79 receiving channels, and can realize the two-way receiving MIMO function of N77 and the two-way receiving MIMO function of N79 through the selection of the multi-way selection switch. Therefore, the four N77 receiving channels and the four N79 receiving channels can be realized by using the MIMO receiving device provided by the application, and compared with the traditional MIMO receiving module, the MIMO receiving device can save cost by using one independent module when providing a downlink four-stream channel for high-grade terminal equipment. The receiving device can realize the normalized design of the module 3, the module 4 and the module 5 in the prior art, so that the design is simpler and the universality is better.

In addition, the MIMO receiving apparatus provided by the embodiment of the present application uses only one filter on the receiving link, whether N77 or N79, so that the front-end noise coefficient can be effectively reduced, and the sensitivity can be improved. In the conventional technical scheme, two N77 filters are disposed on the receiving link corresponding to N77 by using a combiner, so that the noise factor of the front end is relatively large.

In addition, the MIMO receiving device provided by the embodiment of the application can realize the function normalization of a plurality of modules, so that the same sealing and testing jig can be reused, the sealing and testing jigs do not need to be independently developed, and the sealing and testing cost is reduced.

In order to better compare the difference between the technical scheme provided by the embodiment of the application and the traditional scheme, the following table 2 and table 1 can be compared, and as can be seen from the table 2, the technical scheme of the embodiment of the application can realize the normalization of the modules 3-5, and is simpler compared with the table 1, and when the requirement of a high-grade mobile phone is met, only 2 MIMO receiving devices provided by the embodiment of the application are needed.

TABLE 2

One possible implementation manner is that the first set of multiplexing switches, the first N77 filter, the second set of multiplexing switches and the second N77 filter are integrated inside a SIP module, and the first N79 filter and the second N79 filter are disposed outside a system in package (SIP, system In a Package) module. Because the low-grade mobile phone and the high-grade mobile phone both need four paths of N77 downlink channels, the N77 filter is integrated inside the module, the N79 filter is arranged outside the module, the N79 filter is connected only when needed, and the N79 filter can not be connected if not needed, so that the flexibility of the MIMO receiving device provided by the embodiment of the application is improved, and reasonable selection is convenient according to different application occasions. In the embodiment of the application, the two N79 filters arranged outside the module can realize the function of the module 4 in the table 1, and the 2N 77 filters integrated inside the module can realize the downlink two-path MIMO receiving function of N77 and can replace the function of the module 3 in the table 1.

In addition, in order to realize the N77 downlink two-path MIMO receiving function with a higher signal-to-noise ratio, a possible implementation manner of the MIMO receiving module provided by the embodiment of the present application may further include two paths of bypass paths, which is described in detail below with reference to the accompanying drawings.

Referring to fig. 3, a schematic diagram of another MIMO receiving apparatus according to an embodiment of the present application is shown.

Compared with fig. 2, the MIMO receiving apparatus provided in the embodiment of the present application mainly adds a bypass path, an impedance matching network, a low noise amplifier, and an antenna switch module.

The first set of multiplexing switches comprises: a first multiplexing switch SW1 and a second multiplexing switch SW2;

the fixed end of the first multiplexing switch SW1 is used for connecting with the first antenna ANT1; a first selection end of the first multiplexing switch SW1 is connected with a first end of the first N77 filter N77F1, and a second selection end of the first multiplexing switch SW1 is connected with a first end of the first N79 filter N79F 1;

the second end of the first N77 filter is connected to the first selection end of the second multiplexing switch SW2, the second end of the first N79 filter N79F1 is connected to the second selection end of the second multiplexing switch SW2, and the fixed end of the second multiplexing switch SW2 is connected to the first receiving channel rx_1.

The second set of multiplexing switches comprises: a third multiplexing switch SW3 and a fourth multiplexing switch SW4;

the fixed end of the third multiplexing switch SW3 is used for connecting the second antenna; the first selection end of the third multiplexing switch SW3 is connected with the first end of the second N77 filter N77F2, and the second selection end of the third multiplexing switch SW3 is connected with the first end of the second N79 filter N79F 2;

the second end of the second N77 filter N72F2 is connected to the first selection end of the fourth multiplexing switch SW4, the second end of the second N79 filter N79F2 is connected to the second selection end of the fourth multiplexing switch SW4, and the fixed end of the fourth multiplexing switch SW4 is connected to the second receiving channel rx_2.

The first receive path further includes: a first Bypass path Bypass1;

the first end of the first Bypass path Bypass1 is connected to the third selection end of the first multiplexing switch SW1, and the second end of the first Bypass path Bypass1 is connected to the third selection end of the second multiplexing switch SW2.

The second receive path further includes: a second Bypass path Bypass2;

the first end of the second Bypass path Bypass2 is connected to the third selection end of the third multiplexing switch SW3, and the second end of the second Bypass path Bypass2 is connected to the third selection end of the fourth multiplexing switch SW4.

For example, when SW1 and SW2 in the first receiving path are both switched to Bypass1, the first receiving path can directly implement the downlink MIMO receiving function of N77. Similarly, when both SW3 and SW4 in the second receiving path are switched to Bypass2, the second receiving path can directly implement the downlink MIMO receiving function of N77. Therefore, by utilizing the two-path bypass path, the MIMO receiving device provided by the embodiment of the application can realize the N77 downlink two-path MIMO receiving function with higher signal-to-noise ratio.

In order to reduce power consumption and improve signal transmission efficiency, the MIMO receiving apparatus provided by the embodiment of the present application has an impedance matching network built in the module.

The first receive path further includes: a first impedance matching network Z1 corresponding to the first N77 filter N77F 1;

the first impedance matching network Z1 is connected between the second terminal of the first N77 filter N77F1 and the first selection terminal of the second multiplexing switch SW2.

The second receive path further includes: a second impedance matching network Z2 corresponding to the second N77 filter;

the second impedance matching network Z2 is connected between the second terminal of the second N77 filter and the first selection terminal of the fourth multiplexing switch SW4.

It should be understood that the impedance matching network provided in the above embodiments of the present application is to perform impedance matching with the N77 filter, so as to reduce noise signals of the filter.

In order to enable a receiver to receive signals with high quality, the MIMO receiving apparatus provided by the embodiment of the present application further includes a low noise amplifier, which reduces power consumption while ensuring signal quality.

The first receive path further includes: a first low noise amplifier LNA1;

the first end of the first low noise amplifier LNA1 is connected to the fixed end of the second multiplexing switch SW2, and the second end of the first low noise amplifier LNA1 is connected to the first receiving channel RX_1.

The second receive path further includes: a second low noise amplifier LNA2;

the first end of the second low noise amplifier LNA2 is connected to the fixed end of the fourth multiplexing switch SW4, and the second end of the second low noise amplifier LNA2 is connected to the second receiving channel RX_2.

In order to improve controllability, the MIMO receiving apparatus provided in the embodiment of the present application further includes: an antenna switch module SRSASM;

the first end and the second end of the antenna switch module SRSASM are respectively connected with a first antenna ANT1 and a second antenna ANT2; the third terminal and the fourth terminal of the antenna switch module SRSASM are connected to the first receiving path rx_1 and the second receiving path rx_2, respectively.

The implementation process of each device built in the MIMO module is not particularly limited.

In the MIMO receiving apparatus provided by the embodiment of the present application, two N77 filters are built in a module, and the N77 filters built in the module are not limited to process implementation such as integrated passive devices (IPD, integrated Passive Device), surface acoustic waves (SAW, surface Acoustic Wave) or bulk acoustic waves (BAW, body Acoustic Wave).

In addition, the implementation mode of the low noise amplifier built in the module of the MIMO receiving device provided by the embodiment of the application is not limited to the processes of (SOI, silicon On Insulator) CMOS, bulk CMOS, gaAs pHEMT, siGe HBT, gaN HEMT and the like.

The built-in antenna switch module SRSASM of the module of the MIMO receiving apparatus provided by the embodiment of the present application is not limited to SOI CMOS, gaAs pHEMT, and other implementation manners.

For example, the receiving device may multiplex the low noise amplifier and the wafer of the antenna switch module SRSASM, thereby reducing the development cost.

Device embodiment

Based on the MIMO receiving apparatus provided in the foregoing embodiments, an embodiment of the present application further provides a terminal device, which is described in detail below with reference to the accompanying drawings.

The embodiment of the application is not particularly limited to the type of the terminal equipment. In some possible embodiments, the terminal device includes, but is not limited to, a cell phone, tablet, desktop, laptop, notebook, ultra-mobile personal computer (UMPC), handheld computer, netbook, personal digital assistant (Personal Digital Assistant, PDA), wearable mobile terminal, smart watch.

Referring to fig. 4, the diagram is a schematic diagram of a terminal device provided in an embodiment of the present application.

The terminal device provided in this embodiment includes the MIMO receiving apparatus 1000 described in the above embodiment; further comprises: a first antenna ANT1, a second antenna ANT2, and a receiver 2000;

the first input end and the second input end of the MIMO receiving apparatus 1000 are respectively connected to the first antenna ANT1 and the second antenna ANT2, and the first output end and the second output end of the MIMO receiving apparatus 1000 are respectively connected to the first receiving channel rx_1 and the second receiving channel rx_2 of the receiver 2000;

the MIMO receiving apparatus 1000 is configured to provide two N77 receiving paths and two N79 receiving paths.

The terminal equipment provided by the embodiment of the application comprises the MIMO receiving device described in the embodiment, the terminal equipment can support N77 downlink two-way receiving channels and N79 downlink two-way receiving channels, if the terminal equipment needs downlink four-way receiving channels, more than two receiving devices described can be arranged, and the cost can be saved because the integration level of the MIMO receiving device is higher.

It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An antenna MIMO receiving apparatus, comprising two independent and structurally identical receiving paths: a first receive path and a second receive path; a first end of the first receiving path is used for being connected with a first antenna, and a second end of the first receiving path is used for being connected with a first receiving channel of a receiver; the first end of the second receiving path is used for being connected with a second antenna, and the second end of the second receiving path is used for being connected with a second receiving channel of the receiver;

the first receive path includes: a first set of multiplexing switches, a first N77 filter, and a first N79 filter;

the second receive path includes: a second set of multiplexing switches, a second N77 filter, and a second N79 filter;

the first group of multiplexing switches are used for selecting the first N77 filter or the first N79 filter to be communicated with the first antenna;

the second group of multiplexing switches are used for selecting the second N77 filter or the second N79 filter to be communicated with the second antenna;

the first group of multiplexing switches and the second group of multiplexing switches are used for simultaneously conducting two paths of N77 receiving channels, so that the first antenna is connected with the first receiving channel through the first receiving channel, and the second antenna is connected with the second receiving channel through the second receiving channel; or, the antenna is used for simultaneously conducting two paths of N79 receiving channels, so that the first antenna is connected with the first receiving channel through the first receiving channel, and the second antenna is connected with the second receiving channel through the second receiving channel.

2. The receiving device of claim 1, wherein the first set of multiplexing switches comprises: a first multiplexing switch and a second multiplexing switch;

the fixed end of the first multiplexing switch is used for connecting the first antenna; a first selection end of the first multi-path selection switch is connected with a first end of the first N77 filter, and a second selection end of the first multi-path selection switch is connected with a first end of the first N79 filter;

the second end of the first N77 filter is connected with the first selection end of the second multiplexing switch, the second end of the first N79 filter is connected with the second selection end of the second multiplexing switch, and the fixed end of the second multiplexing switch is connected with the first receiving channel.

3. The receiving device of claim 2, wherein the first receive path further comprises: a first impedance matching network corresponding to the first N77 filter;

the first impedance matching network is connected between the second end of the first N77 filter and the first select end of the second multiplexing switch.

4. A receiving device according to claim 2 or 3, wherein the first receiving path further comprises: a first low noise amplifier;

the first end of the first low noise amplifier is connected with the fixed end of the second multiplexing switch, and the second end of the first low noise amplifier is used for being connected with the first receiving channel.

5. A receiving device according to claim 2 or 3, wherein the first receiving path further comprises: a first bypass path;

the first end of the first bypass path is connected with the third selection end of the first multi-path selection switch, and the second end of the first bypass path is connected with the third selection end of the second multi-path selection switch.

6. The receiving device of claim 1, wherein the second set of multiplexing switches comprises: a third multiplexing switch and a fourth multiplexing switch;

the fixed end of the third multi-path selection switch is used for connecting the second antenna; a first selection end of the third multi-path selection switch is connected with a first end of the second N77 filter, and a second selection end of the third multi-path selection switch is connected with a first end of the second N79 filter;

the second end of the second N77 filter is connected with the first selection end of the fourth multiplexing switch, the second end of the second N79 filter is connected with the second selection end of the fourth multiplexing switch, and the fixed end of the fourth multiplexing switch is connected with the second receiving channel.

7. The receiving device of claim 6, wherein the second receive path further comprises: a second impedance matching network corresponding to the second N77 filter;

the second impedance matching network is connected between the second end of the second N77 filter and the first select terminal of the fourth multiplexing switch.

8. The receiving device according to claim 6 or 7, wherein the second receiving path further comprises: a second low noise amplifier;

the first end of the second low noise amplifier is connected with the fixed end of the fourth multiplexing switch, and the second end of the second low noise amplifier is used for being connected with the second receiving channel.

9. The receiving device according to claim 6 or 7, wherein the second receiving path further comprises: a second bypass path;

the first end of the second bypass path is connected with the third selection end of the third multiplexing switch, and the second end of the second bypass path is connected with the third selection end of the fourth multiplexing switch.

10. The receiving device of claim 1, wherein the first set of multiplexing switches, the first N77 filter, the second set of multiplexing switches, and the second N77 filter are integrated inside a SIP module, and wherein the first N79 filter and the second N79 filter are disposed outside the SIP module.

11. The receiving device according to claim 1, further comprising: an antenna switch module;

the first end and the second end of the antenna switch module are respectively connected with the first antenna and the second antenna; and a third end and a fourth end of the antenna switch module are respectively connected with the first receiving path and the second receiving path.

12. A terminal device comprising the MIMO receiving apparatus of any one of claims 1-11; further comprises: a first antenna, a second antenna, and a receiver;

the first input end and the second input end of the MIMO receiving device are respectively connected with the first antenna and the second antenna, and the first output end and the second output end of the receiving device are respectively connected with a first receiving channel and a second receiving channel of the receiver;

the MIMO receiving apparatus is configured to provide two N77 receiving paths and two N79 receiving paths.