Wireless signal receiving circuit and system

Abstract

A wireless signal receiving circuit and system are disclosed. The wireless signal receiving circuit includes: an antenna structure for receiving wireless signals in multiple frequency bands; a first duplexer connected to the antenna structure for splitting the wireless received signals into a low-frequency first wireless signal and a high-frequency second wireless signal; a first extractor coupled to the first duplexer for receiving the first wireless signal and splitting the first wireless signal into a third wireless signal and a fourth wireless signal; a second duplexer coupled to the antenna structure and connected to the first extractor for combining the wireless received signal and the third wireless signal into a fifth wireless signal; and a third duplexer coupled to the first extractor and the first duplexer for combining the second wireless signal and the fourth wireless signal into a sixth wireless signal.

Description

Technical Field

[0001] This invention relates to a wireless signal receiving circuit and system, and more particularly to a wireless signal receiving circuit and system that receives multiple wireless signals of different frequency bands with an antenna structure and outputs them to a wireless network module. Background Technology

[0002] As wireless network technology evolves, the number of antennas in wireless signal receiving devices, such as mobile devices, is also increasing.

[0003] For example, the number of antennas on mobile devices has increased from two antennas for LTE (Long Term Evolution) to four antennas for 5G NR (New Radio).

[0004] However, due to the size limitations of mobile devices, how to incorporate a multi-antenna structure into a wireless signal receiving device has become one of the problems that the industry needs to solve. Summary of the Invention

[0005] In view of this, the present invention provides a wireless signal receiving circuit and system that can receive multiple wireless signals including different frequency bands through an antenna structure (or a wireless signal receiving architecture). After the multiple wireless signals including different frequency bands are processed by means of signal extraction, signal extraction, signal separation, noise filtering, signal amplification, etc., the processed wireless signals are fed into the wireless network module according to the module requirements, thereby reducing the space occupied by the antenna used to receive wireless signals.

[0006] The wireless signal receiving circuit provided by this invention includes: an antenna structure for receiving wireless signals in multiple frequency bands; a first duplexer connected to the antenna structure for splitting the wireless received signals into a low-frequency first wireless signal and a high-frequency second wireless signal; a first extractor coupled to the first duplexer for receiving the first wireless signal and splitting the first wireless signal into a third wireless signal and a fourth wireless signal; a second duplexer coupled to the antenna structure and connected to the first extractor for combining the wireless received signal and the third wireless signal into a fifth wireless signal; and a third duplexer coupled to the first extractor and the first duplexer for combining the second wireless signal and the fourth wireless signal into a sixth wireless signal.

[0007] In one embodiment of the present invention, the antenna structure of the wireless signal receiving circuit described above includes a co-structured antenna structure, which includes multiple antennas.

[0008] In one embodiment of the present invention, the wireless signal receiving circuit further includes: a noise filtering circuit connected to a first duplexer and a first extractor for receiving a first wireless signal.

[0009] In one embodiment of the present invention, the noise filtering circuit of the wireless signal receiving circuit described above includes: a second extractor, a third extractor, and a low-noise amplifier.

[0010] In one embodiment of the present invention, the wireless signal receiving circuit further includes: a fourth extractor connected to the first duplexer, the second duplexer, and the third duplexer, for receiving a second wireless signal.

[0011] The wireless signal receiving system provided by this invention includes: a wireless signal receiving device, comprising: an antenna structure for receiving wireless signals in multiple frequency bands; a first duplexer connected to the antenna structure for splitting the wireless received signals into a low-frequency first wireless signal and a high-frequency second wireless signal; a first extractor coupled to the first duplexer for receiving the first wireless signal and splitting the first wireless signal into a third wireless signal and a fourth wireless signal; a second duplexer coupled to the antenna structure and connected to the first extractor for combining the wireless received signal and the third wireless signal into a fifth wireless signal; and a third duplexer coupled to the first extractor and the first duplexer for combining the second wireless signal and the fourth wireless signal into a sixth wireless signal; and at least one wireless network module for receiving wireless signals from the wireless signal receiving device.

[0012] In one embodiment of the present invention, in the above-described wireless signal receiving system, the antenna structure of the wireless signal receiving device includes a co-structured antenna structure, which includes multiple antennas.

[0013] In one embodiment of the present invention, in the above-described wireless signal receiving system, the wireless signal receiving device further includes: a noise filtering circuit connected to a first duplexer and a first extractor for receiving a first wireless signal.

[0014] In one embodiment of the present invention, in the above-described wireless signal receiving system, the noise filtering circuit includes: a second extractor, a third extractor, and a low-noise amplifier.

[0015] In one embodiment of the present invention, in the above-described wireless signal receiving system, the wireless signal receiving device further includes: a fourth extractor connected to a first duplexer, a second duplexer, and a third duplexer, for receiving a second wireless signal.

[0016] In one embodiment of the present invention, in the above-described wireless signal receiving system, the wireless network module includes: a wireless wide area network (WWAN) module and a wireless local area network (WLAN) module.

[0017] In summary, the present invention can receive multiple wireless signals including different frequency bands through an antenna structure (or a wireless signal receiving architecture), and then process the multiple wireless signals including different frequency bands through signal processing such as signal extraction, signal extraction, signal separation, noise filtering, and signal amplification, and then feed the processed wireless signals into the wireless network module according to the module requirements, thereby reducing the space occupied by the antenna used to receive wireless signals.

[0018] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a block diagram of a wireless signal receiving system provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the wireless signal direction of a wireless signal receiving system provided in an embodiment of the present invention;

[0021] Figure 3 A block diagram of a wireless signal receiving system provided in another embodiment of the present invention; and

[0022] Figure 4 This is a block diagram of a wireless signal receiving system provided in another embodiment of the present invention. Detailed Implementation

[0023] Please refer to Figure 1 , Figure 1 This is a block diagram of a wireless signal receiving system provided in an embodiment of the present invention.

[0024] In this embodiment, the wireless signal receiving system 1 of the present invention includes: a wireless signal receiving device and at least one wireless network module, wherein the wireless signal receiving device includes a wireless signal receiving circuit. And connect to at least one wireless network Modules (e.g., a wireless network module may include a wireless wide area network module) WWANM, and WLANM (Wireless Local Area Network Module, etc.).

[0025] In this embodiment, the wireless signal receiving circuit includes: an antenna structure Ant., a first duplexer DIP1, a first extractor EX1, a second duplexer DIP2, and a third duplexer DIP3. The antenna structure Ant. is connected to the first duplexer DIP1 and the second duplexer DIP2. The first extractor EX1 is connected to the first duplexer DIP1, the second duplexer DIP2, and the third duplexer DIP3. The third duplexer DIP3 is connected to the first duplexer DIP1 and the wireless wide area network module WWAN. The second duplexer DIP2 is connected to the wireless local area network module WLANM.

[0026] To avoid ambiguity or confusion, some terms used in this invention will be explained in advance, and to avoid being too lengthy, devices or structures with the same function will use the same symbols in various embodiments.

[0027] In this invention, an antenna structure refers to a device used to transmit or receive wireless signals. An antenna structure can be a standalone device specifically designed to transmit or receive wireless signals, or it can be a metal object in a specific shape. Any device that can be used to transmit or receive wireless signals can be used as the antenna structure of this invention. This invention does not limit the specific implementation of the antenna structure.

[0028] In this invention, the antenna structure may include a shared antenna structure, which may include multiple antennas. A shared antenna structure refers to a structure that transmits or receives multiple wireless signals of different frequency bands using a single antenna structure. Generally, a single antenna structure is typically used to transmit or receive wireless signals of a specific frequency. A shared antenna structure, which would normally require multiple antenna structures to transmit or receive multiple wireless signals of different frequency bands separately, can transmit or receive these signals using a shared structure. Therefore, it is called a shared antenna structure. Furthermore, any structure or device that can transmit or receive multiple wireless signals of different frequency bands using a shared structure can be considered a shared antenna structure of this invention. This invention does not limit the specific implementation of the shared antenna structure.

[0029] Next, please refer to Figure 2 , Figure 2 This is a schematic diagram of the wireless signal direction of a wireless signal receiving system provided in an embodiment of the present invention.

[0030] Taking MIMO2 wireless signals and Wi-Fi 2.4G / 5G / 6G wireless signals as examples, the wireless signal receiving system 1 of the present invention can receive multiple frequencies through the co-constructed antenna structure of the Ant antenna structure. The wireless reception signal Sig.R (also) This refers to the aforementioned MIMO2 wireless signal and Wi-Fi.The system receives MIMO2 and Wi-Fi 2.4G wireless signals, as well as Wi-Fi 5G / 6G wireless signals, using a dual-antenna structure as a co-located antenna structure (that is, the dual-antenna structure can be used as an antenna structure to receive MIMO2 and Wi-Fi 2.4G wireless signals, or as an antenna structure to receive Wi-Fi 5G and Wi-Fi 6G wireless signals). Then, the first duplexer DIP1 splits the received wireless signal Sig.R into a low-frequency first wireless signal Sig.1 (frequency band, for example, 698M~2690M Hz) and a high-frequency second wireless signal Sig.2 (frequency band, for example, 3300M~5000M Hz). The first extractor EX1 then receives the first wireless signal Sig.1 and splits it into a third wireless signal Sig.3 (frequency band, for example, 2401M~2495M). The signal consists of a first wireless signal (Hz) and a second wireless signal (Sig.4, in the frequency band of, for example, 698M to 2690M Hz, excluding the frequency band of 2401M to 2495M Hz). Then, a second duplexer combines the received wireless signal Sig.R (in the frequency band of, for example, 5180M to 7150M Hz) and the third wireless signal Sig.3 into a fifth wireless signal Sig.5, and feeds the fifth wireless signal Sig.5 into a wireless network module (for example, a wireless local area network module WLANM of a Wi-Fi module). Then, a third duplexer combines the second wireless signal Sig.2 and the fourth wireless signal Sig.4 into a sixth wireless signal Sig.6, and feeds the sixth wireless signal Sig.6 into a wireless network module (for example, a wireless wide area network module WWANM).

[0031] In this invention, the wireless signal receiving system 1 includes a first duplexer DIP1 (Diplexer) connected to an antenna structure Ant., a first extractor EX1 (Extractor), and a third duplexer DIP3 (Diplexer). It is used to split the received wireless signal Sig.R into a low-frequency first wireless signal Sig.1 and a high-frequency second wireless signal Sig.2, respectively transmitting the low-frequency first wireless signal Sig.1 to the first extractor EX1 and the high-frequency second wireless signal Sig.2 to the third duplexer DIP3. In this embodiment, the low-frequency band split by the first duplexer DIP1 is 698MHz to 2690MHz, and the high-frequency band is 3300MHz to 5000MHz, but this invention is not limited thereto.

[0032] In this invention, the wireless signal receiving system 1 includes a first extractor EX1 connected to a first duplexer DIP1, a second duplexer DIP2, and a third duplexer DIP3. EX1 receives a first wireless signal Sig.1 and splits it into a third wireless signal Sig.3 and a fourth wireless signal Sig.4. The third wireless signal Sig.3 is then transmitted to the second duplexer DIP2. The fourth wireless signal, Sig.4, is transmitted to the third duplexer, DIP3. In the embodiment, the first extractor The EX1 is divided into frequency bands of 2401M~2495M Hz and 698M~2690M Hz, but excluding the frequency band of 2401M~2495M Hz. That is, the fourth wireless signal Sig.4 does not include the frequency band of the third wireless signal Sig.3, but the present invention is not limited thereto.

[0033] In this invention, the wireless signal receiving system 1 includes a second duplexer DIP2 connected to a first extractor EX1, an antenna structure Ant., and a wireless local area network module WLANM. This DIP2 combines the wireless received signal Sig.R and the third wireless signal Sig.3 into a fifth wireless signal Sig.5, and feeds the fifth wireless signal Sig.5 into the WLANM. In this embodiment, the frequency band of the wireless received signal Sig.R is 5180MHz to 7150MHz, and the frequency band of the third wireless signal Sig.3 is 2401MHz to 2495MHz, but this invention is not limited thereto.

[0034] In this invention, the wireless signal receiving system 1 includes a third duplexer DIP3 connected to a first extractor EX1, the first duplexer DIP1, and a wireless wide area network module WWANM. This DIP3 combines the second wireless signal Sig.2 and the fourth wireless signal Sig.4 into a sixth wireless signal Sig.6, and feeds the sixth wireless signal Sig.6 into the WWANM. In this embodiment, the frequency band of the second wireless signal Sig.2 is 3300MHz to 5000MHz, and the frequency band of the fourth wireless signal Sig.4 is 698MHz to 2690MHz, excluding the 2401MHz to 2495MHz band; however, this invention is not limited thereto.

[0035] Next, please refer to Figure 3 , Figure 3 This is a block diagram of a wireless signal receiving system provided in another embodiment of the present invention.

[0036] In this embodiment, the wireless signal receiving system 1 of the present invention further includes: a noise filtering circuit 2 for receiving a first wireless signal Sig.1. The noise filtering circuit 2 includes: a second extractor EX2, a third extractor EX3, and a low noise amplifier LNA, wherein the second extractor EX2 is connected to the first duplexer DIP1, the third extractor EX3, and the low noise amplifier LNA, and the third extractor EX3 is connected to the low noise amplifier LNA and the first extractor EX1. The second extractor EX2 receives the first wireless signal Sig.1 and splits it into a frequency band of 1166M~1187M Hz and a frequency band of 698M~2690M Hz excluding the 1166M~1187M Hz band. The wireless signal of the 1166M~1187M Hz band is transmitted to the low noise amplifier LNA, and the wireless signal of the 698M~2690M Hz band excluding the 1166M~1187M Hz band is transmitted to the third extractor EX3. The third extractor EX3 then combines the signals and transmits them to the first extractor EX1, thereby filtering out noise from the first wireless signal Sig.1 and improving signal quality and stability.

[0037] Please refer to Figure 4 , Figure 4 This is a block diagram of a wireless signal receiving system provided in another embodiment of the present invention.

[0038] In this embodiment, the wireless signal receiving system 1 of the present invention further includes: a fourth extractor EX4, wherein the fourth extractor EX4 is connected to a first duplexer DIP1, a second duplexer DIP2, and a third duplexer DIP3.

[0039] In this embodiment, the antenna structure Ant. can be used to receive wireless wide area network (WWAN) and Wi-Fi wireless signals. The fourth extractor can be used to receive the second wireless signal Sig.2 and split the second wireless signal Sig.2 into wireless signals in the 5180M~7150M Hz frequency band and the 3300M~5000M Hz frequency band. The wireless signal in the 5180M~7150M Hz frequency band is transmitted to the second duplexer DIP2 and the wireless signal in the 3300M~5000M Hz frequency band is transmitted to the third duplexer DIP3. The wireless signals are then fed into the wireless network module through the second duplexer DIP2 and the third duplexer DIP3 respectively.

[0040] In summary, the present invention can receive multiple wireless signals including different frequency bands through an antenna structure (or a wireless signal receiving architecture), and then process the multiple wireless signals including different frequency bands through signal processing such as signal extraction, signal extraction, signal separation, noise filtering, and signal amplification, and then feed the processed wireless signals into the wireless network module according to the module requirements, thereby reducing the space occupied by the antenna used to receive wireless signals.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the methods and techniques disclosed above without departing from the scope of the present invention to create equivalent embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A wireless signal receiving circuit, characterized in that, include: An antenna structure used to receive wireless signals across multiple frequency bands; A first duplexer, connected to the antenna structure, is used to split the wireless received signal into a low-frequency first wireless signal and a high-frequency second wireless signal. A first extractor, coupled to the first duplexer, is used to receive the first wireless signal and split the first wireless signal into a third wireless signal and a fourth wireless signal. A second duplexer, coupled to the antenna structure and connected to the first extractor, is used to combine the wireless received signal and the third wireless signal into a fifth wireless signal. as well as A third duplexer, coupled to the first extractor and the first duplexer, is used to combine the second wireless signal and the fourth wireless signal into a sixth wireless signal.

2. The wireless signal receiving circuit as described in claim 1, characterized in that, The antenna structure includes a co-structured antenna structure, which comprises multiple antennas.

3. The wireless signal receiving circuit as described in claim 1, characterized in that, Including: A noise filtering circuit is connected to the first duplexer and the first extractor to receive the first wireless signal.

4. The wireless signal receiving circuit as described in claim 3, characterized in that, The noise filtering circuit includes: a second extractor, a third extractor, and a low-noise amplifier, wherein the second extractor is connected to the first duplexer, the third extractor, and the low-noise amplifier, and the third extractor is connected to the low-noise amplifier and the first extractor.

5. A wireless signal receiving system, characterized in that, include: A wireless signal receiving device; as well as At least one wireless network module is connected to the wireless signal receiving device to receive wireless signals from the wireless signal receiving device; The wireless signal receiving device includes: An antenna structure used to receive wireless signals across multiple frequency bands; A first duplexer, connected to the antenna structure, is used to split the wireless received signal into a low-frequency first wireless signal and a high-frequency second wireless signal. A first extractor, coupled to the first duplexer, is used to receive the first wireless signal and split the first wireless signal into a third wireless signal and a fourth wireless signal. A second duplexer, coupled to the antenna structure and connected to the first extractor, is used to combine the received wireless signal and the third wireless signal into a fifth wireless signal; and A third duplexer, coupled to the first extractor and the first duplexer, is used to combine the second wireless signal and the fourth wireless signal into a sixth wireless signal.

6. The wireless signal receiving system as described in claim 5, characterized in that, The antenna structure includes a co-structured antenna structure, which comprises multiple antennas.

7. The wireless signal receiving system as described in claim 5, characterized in that, The wireless signal receiving device further includes: A noise filtering circuit is connected to the first duplexer and the first extractor to receive the first wireless signal.

8. The wireless signal receiving system as described in claim 7, characterized in that, The noise filtering circuit includes: a second extractor, a third extractor, and a low-noise amplifier, wherein the second extractor is connected to the first duplexer, the third extractor, and the low-noise amplifier, and the third extractor is connected to the low-noise amplifier and the first extractor.

9. The wireless signal receiving system as described in claim 5, characterized in that, The at least one wireless network module includes: a wireless wide area network (WWAN) module and a wireless local area network (WLAN) module.

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