TWI467929B - Radio-frequency processing circuit and related wireless communication device - Google Patents

Description

Radio frequency processing circuit and wireless communication device

The field of the invention relates to a radio-frequency (RF) processing circuit and associated wireless communication device, and more particularly to an RF processing unit capable of adjusting the transmission of each wireless signal in accordance with each channel environment and each operating band.

With the advancement of wireless communication technology, different wireless communication systems have been developed, such as mobile communication systems, wireless local area networks (WLANs), and wireless personal area networks (WPAN). ). For example, the mobile communication system can be a Global System for Mobile Communications (GSM), a 3rd Generation Partnership Project (3G), a Long Term Evolution (LTE) or a microwave access global access ( Worldwide Interoperability for Microwave Access (WiMAX), WLAN can be wireless local area network (Wi-Fi), and WPAN can be Bluetooth. Optionally, the different wireless communication systems operate in different operating bands and use different communication technologies (eg, modulation, decoding, and/or computational techniques) to avoid mutual interaction between different wireless signals of different wireless communication systems. interference. However, based on limited spectrum resources, some of these wireless communication systems must operate in the same operating band.

For example, the operating bands of Bluetooth (eg IEEE 802.15.1) and Wi-Fi (eg IEEE 802.11) come from industry, science and medicine located around the carrier frequency of 2.4 GHz. (industrial, scientific medical, ISM) frequency band, and the ISM band is reserved internationally for industrial, scientific and medical applications. Therefore, at the same time, there may be a case where the wireless communication device using Bluetooth and Wi-Fi is in the same operating band. In this case, when one of the Bluetooth or Wi-Fi wireless signals is transmitted or received through an antenna, the other wireless signal of the two must stop transmitting or receiving through the same antenna, despite the Bluetooth and Wi-Fi each uses different modulation and coding protocols. In other words, the transmission or reception of Bluetooth and Wi-Fi wireless signals occupy the same antenna.

In addition, the wireless signals under the same communication standard can also correspond to different operating bands. For example, the operating band of Wi-Fi is 2.4 GHz and 5 GHz, and the wireless signals corresponding to 2.4 GHz and 5 GHz can contain different data and are transmitted through different communication devices. However, a plurality of wireless signals corresponding to 2.4 GHz and 5 GHz must be transmitted or received through one of a plurality of antennas in an advanced wireless communication device. In other words, the plurality of wireless signals corresponding to 2.4 GHz and 5 GHz cannot select different antennas according to the respective channel qualities, and transmit or receive the wireless signals through different antennas. The channel quality is, for example, a signal-to-noise ratio (signal- To-noise ratio (SNR) and bit-error-rate (BER). In such an environment, the transmission of advanced wireless communication devices has lower efficiency.

Therefore, how to select an antenna for each wireless signal according to the channel quality and operating frequency band corresponding to each wireless signal becomes a subject that is in great need of research and solution.

In view of this, the present invention provides a radio frequency processing circuit and wireless communication Device to solve the above problems.

In one aspect, an embodiment of the present invention provides a radio frequency processing circuit for use in a wireless communication device, the radio frequency processing circuit comprising: a radio frequency front end circuit coupled to a plurality of antennas and a plurality of wireless communication modules, Controlling, by a control signal, a connection between the plurality of wireless communication modules and the plurality of wireless communication modules; and a control unit coupled to the radio frequency front end circuit for each of the plurality of wireless communication modules The control signal is generated by a frequency band and an operating environment; wherein each of the plurality of wireless communication modules is coupled to one of the plurality of antennas.

In another aspect, an embodiment of the present invention provides a wireless communication device, including: a plurality of wireless communication modules; a plurality of antennas for transmitting or receiving a plurality of wireless signals generated by the plurality of wireless communication modules; and a radio frequency The processing circuit includes: a radio processing unit coupled to the plurality of antennas and the plurality of wireless communication units for controlling connection between the plurality of antennas and the plurality of wireless communication modules according to a control signal And a control unit coupled to the plurality of wireless communication modules and the radio processing unit for generating the control signal according to an operating environment of each of the plurality of wireless communication modules; wherein the plurality of wireless signals Each of the communication modules is coupled to one of the plurality of antennas.

The radio frequency processing circuit and the wireless communication device of the embodiments of the present invention can control the connection between the wireless communication modules and the antennas according to the operating environment of each wireless communication module, thereby improving the performance of the communication module.

In the embodiment of the present invention, the connection between the wireless communication module and the antenna can be adjusted according to the operating frequency band and the operating environment of each communication module, thereby improving the performance of each communication module and avoiding transmission in the same operating band or adjacent operating band. And mutual interference between the received wireless signals.

Referring to FIG. 1, FIG. 1 is a schematic diagram of a wireless communication device 10 in accordance with an embodiment of the present invention. The wireless communication device 10 is used in an electronic device, and includes a plurality of wireless communication modules WR_MOD_1-WR_MOD_n, a radio frequency (RF) front end circuit 100, a plurality of antennas ANT_1-ANT_i, and a control unit 110, for example, the electronic device Is a computer system or a mobile device. A plurality of wireless communication modules WR_MOD_1-WR_MOD_n transmit and receive wireless signals WR_1-WR_n through a plurality of antennas ANT_1-ANT_i, wherein the wireless signals WR_1-WR_n can correspond to different operating frequency bands and the antennas ANT_1-ANT_i can be transmitted at the same time and Receiving different wireless signals corresponding to different operating bands. In addition, any of the antennas ATT_1-ANT_i may be a multi-band antenna that can receive and transmit wireless signals at a plurality of different frequencies.

The control unit 110 generates a control signal CTR to the RF front end circuit 100 for adjusting the wireless communication according to the operating frequency bands corresponding to the respective wireless signals WR_1-WR_n and the channel quality of each channel for transmitting and receiving each of the wireless signals WR_1-WR_n. The connection between the module WR_MOD_1-WR_MOD_n and the antenna ANT_1-ANT_i. In other words, the RF front end circuit 100 and the control unit 110 can be integrated into an RF processing circuit. In detail, the control unit 110 first adjusts the control signal CTR for detecting the channel quality of each channel corresponding to each of the antennas ANT_1-ANT_i of the respective wireless signals WR_1-WR_n, and then the control unit 110 is connected by Every wireless pass The signal module WR_MOD_1-WR_MOD_n to one of the antennas ANT_1-ANT_i determines the control signal CTR according to the detected quality of each channel to obtain the best channel quality that can be used for each wireless communication module WR_MOD_1-WR_MOD_n. . It should be noted that the wireless signals corresponding to different operating bands may be connected to the same antenna or to different antennas.

The RF front end circuit 100 includes a switch module 120 and a frequency multiplexing module 130. The switch module 120 is coupled to the wireless communication module WR_MOD_1-WR_MOD_n for controlling the wireless communication module WR_MOD_1-WR_MOD_n and the input terminals IN_1_1-IN_1_i, IN_2_1-IN_2_i, ..., IN_n_1-IN_n_i according to the control signal CTR. The shutdown. The wireless communication module WR_MOD_1 corresponds to the input terminal IN_1_1-IN_1_i, the wireless communication module WR_MOD_2 corresponds to the input terminal IN_2_1-IN_2_i, and so on. The frequency multiplexing module 130 is coupled to the switch module 120 and the antennas ANT_1-ANT_i for use between the multiplexed input terminals IN_1_1-IN_1_i, IN_2_1-IN_2_i, ..., IN_n_1-IN_n_i and the antenna ANT_1-ANT_i. Signal, where antenna ANT_1 corresponds to input terminal IN_1_1-IN_1_i, antenna ANT_2 corresponds to input terminal IN_2_1-IN_2_i, and so on. Therefore, the control unit 110 can adjust the control signal CTR according to the quality of each channel to connect one of the wireless communication modules WR_MOD_1-WR_MOD_n to the antenna ANT_1-ANT_i, so that the wireless communication module WR_MOD_1 -WR_MOD_n transmits and receives the wireless signals WR_1-WR_n by the corresponding antennas to optimize the performance of the wireless communication module WR_MOD_1-WR_MOD_n.

The switch module 120 and the frequency multiplex module 130 can be modified as appropriate according to different system requirements. For example, please refer to FIG. 2, which is a schematic diagram of a wireless communication device 20 in accordance with another embodiment of the present invention. The wireless communication device 20 includes a complex A plurality of wireless communication modules WR_MOD_1-WR_MOD_n, an RF front end circuit 200, a control unit 210 and a plurality of antennas ANT_1-ANT_i. The configuration and operation method of the wireless communication device 20 are similar to those of the wireless communication device 10 shown in Fig. 1, and therefore the same reference numerals are used for the same components as those of the wireless communication device 10. As shown in FIG. 2, the switch module 220 in the RF front end circuit 200 includes a plurality of first switch units PSW_1-PSW_n. The first switch unit PSW_1 is configured to control the connection between the wireless communication module WR_MOD_1 and the input terminals IN_1_1-IN_1_i according to the control signal CTR. The first switch unit PSW_2 is configured to control the wireless communication module WR_MOD_2 and the input terminal IN_2_1 according to the control signal CTR. -IN_2_i connection, and so on. In this embodiment, each of the first switching units PSW_1-PSW_n can be implemented by a single-pole i-throw switch, but the invention does not limit this. The frequency multiplex module 230 in the RF front end circuit 200 includes a plurality of frequency multiplex units FM_1-FM_i. Optionally, the plurality of frequency multiplex units FM_1-FM_i may be passive units capable of performing multiplex transmission and separation on each wireless signal according to an operating frequency band of each wireless signal. The frequency multiplexing unit FM_1 is coupled to the input terminals IN_1_1-IN_n_1 and the antenna ANT_1, the frequency multiplexing unit FN_2 is coupled to the input terminals IN_1_2-IN_n_2 and the antenna ANT_2, and so on. The connection between the wireless communication module WR_MOD_1-WR_MOD_n and the frequency multiplexing unit FM_1-FN_i can be generated by the control unit 110 according to the channel quality of each antenna ANT_1-ANT_i corresponding to the transmission and reception of each wireless signal WR_FB1-WR_FBn. The control signal CTR is controlled, and each wireless communication module WR_MOD_1-WR_MOD_n can be connected to one of the antennas ANT_1-ANT_i for use or to obtain the best channel quality. Specifically, each of the wireless communication modules WR_MOD_1-WR_MOD_n can arbitrarily select one of the antennas ANT_1-ANT_i For example, a wireless communication module corresponding to different frequency bands may be coupled to the same antenna of the antennas ANT_1-ANT_i, and a wireless communication module corresponding to the same frequency band may be selectively coupled to different antennas of the antennas ANT_1-ANT_i. .

For further explanation of the conceptual purpose of the embodiment shown in FIG. 2, please refer to FIG. 3, which shows a schematic diagram of a wireless communication device 30 according to still another embodiment of the present invention. As shown in FIG. 3, the wireless communication device 30 is an example of when the n=2 and i=6 of the wireless communication device 20. Therefore, the wireless communication device 30 includes wireless communication modules WR_MOD_1 and WR_MOD_2, an RF front end circuit 300, a control unit 310, and antennas ANT_1-ANT_3, wherein the wireless communication modules WR_MOD_1 and WR_MOD_2 correspond to the operating frequency bands FB1 and FB2, respectively. A switch module 320 of the RF front end circuit 300 includes first switch units PW_1 and PW_2, and the first switch units PW_1 and PW_2 can be single pole 6 throw switches. A frequency multiplexing module 330 of the RF front-end circuit 300 includes frequency multiplexing units FM_1 and FM_2. In this embodiment, since the wireless communication unit 30 operates only in two operating frequency bands, the frequency multiplexing units FM_1 and FM_2 can transmit through the dual The implement is implemented.

In more detail, the wireless communication modules WR_MOD_1 and WR_MOD_2 respectively generate wireless signals WR_FB1 and WR_FB2 corresponding to the operating bands FB1 and FB2, respectively. Next, the control unit 310 adjusts the control signal CTR for detecting the channel quality corresponding to each of the antennas ANT_1-ANT_6 for transmitting and receiving the wireless signals WR_FB1 and WR_FB2, and generating the control signal CTR according to the detected channel quality. The first switch units PW_1 and PW_2 are configured to respectively control the connection between the wireless communication module WR_MOD_1 and the input terminals IN_1_1-IN_1_6 and the connection between the wireless communication module WR_MOD_2 and the input terminals IN_2_1-IN_2_6 according to the control signal CTR. To connect each One of the wireless communication modules WR_MOD_1 and WR_MOD_2 to the frequency multiplexing unit FM_1-FM_6. Then, the frequency multiplexing units FM_1-FM_6 multiplex the wireless signals WR_FB1 and WR_FB2 and the antennas ANT_1-ANT_6, respectively. Therefore, unlike the wireless signals transmitted by the same antenna, in the embodiment, the wireless signals WR_FB1 and WR_FB2 generated by the wireless communication modules WR_MOD_1 and WR_MOD_2 respectively can be used according to each antenna for transmitting and receiving the wireless signals WR_FB1 and WR_FB2. The channel quality corresponding to ANT_1-ANT_6 is transmitted.

The wireless communication device 10 shown in Fig. 1 can be appropriately modified in accordance with the frequency band of the wireless signals WR_1-WR_n. Referring to FIG. 4, FIG. 4 is a schematic diagram of a wireless communication device 40 according to still another embodiment of the present invention. The wireless communication device 40 includes a wireless communication module WR_MOD_1-WR_MOD_n, an RF front end circuit 400, a control unit 410, and antennas ANT_1-ANT_i. The RF front end circuit 400 includes a switch module 420 and a frequency multiplex module 430. The configuration of the wireless communication device 40 is similar to that of the wireless communication device 20 shown in FIG. 2, and therefore the same reference numerals are used for the wireless communication device 40 as the wireless communication device 20. Similar to the wireless communication device 20 shown in FIG. 2, the frequency multiplexing module 430 includes a plurality of frequency multiplexing units FM_1-FM_i for inputting IN_1_1-IN_k_1, IN_1_2-IN_k_2, ..., IN_1_i- The signal between IN_k_i and the antenna ANT_1-ANT_i is multiplexed. Different from the wireless communication device 20 shown in FIG. 2, the wireless signals WR_FB1_1-WR_FB1_1j, WR_FB2_1-WR_FB2_2j, ..., WR_FBk_1-WR_FBk_kj generated by the wireless communication module WR_MOD_1-WR_MOD_n (n=k×j) are Corresponds to the operating band of FB1-FBk. Therefore, the switch module 420 shown in FIG. 4 further includes a second switch unit SSW_1-SSW_m for using a plurality of wireless signals and frequencies having the same operating frequency according to the control signal CTR. The connection between the multiplex units FM_1-FM_i is controlled, where m is equal to the product of the number of antennas i and the number k of wireless signals (m=i×k). With the second switching unit SSW_1-SSW_m, only one of the plurality of wireless signals having the same operating frequency is connected to each of the frequency multiplexing units FM_1-FM_i. In other words, multiple wireless signals having the same operating frequency do not interfere with each other. Therefore, the wireless communication device 40 shown in FIG. 4 can be based on the operating frequency band FB1-FBk and the plurality of antennas ANT_1- corresponding to transmitting and receiving the plurality of wireless signals WR_FB1_1-WR_FB1_1j, WR_FB2_1-WR_FB2_2j, ..., WR_FBk_1-WR_FBk_kj. The channel quality of ANT_i adjusts the connection between the wireless communication module WR_MOD_1-WR_MOD_n and the antenna ANT_1-ANT_i.

In more detail, after the wireless communication module WR_MOD_1-WR_MOD_n generates a plurality of wireless signals WR_FB1_1-WR_FB1_1j, WR_FB2_1-WR_FB2_2j, ..., WR_FBk_1-WR_FBk_kj (n=k×j), the control unit 410 adjusts the control signal CTR, For detecting the channel quality of each of the plurality of antennas ANT_1-ANT_i corresponding to the transmission and reception of the plurality of wireless signals WR_FB1_1-WR_FB1_1j, WR_FB2_1-WR_FB2_2j, ..., WR_FBk_1-WR_FBk_kj, and according to the detected quality of each channel The control signal CTR is determined. Then, a first switching unit PSW_1 controls the connection between the wireless communication module WR_MOD_1 and the output terminal OUT_FB1_1_1-OUT_FB1_1_i of the first switching unit PSW_1 according to the control signal CTR, and the first switching unit PSW_2 controls the wireless communication module according to the control signal CTR. The connection between the group WR_MOD_2 and the output terminal OUT_FB1_2_1-OUT_FB1_2_i of the first switching unit PSW_2 is turned on and off, and so on. Then, the second switching unit SSW1 controls the output terminal OUT_FB1_1_1-OUT_FB1_1j_1 and the input terminal IN_1_1 according to the control signal CTR. The connection is turned on and off, and the second switching unit SSW2 controls the connection between the output terminal OUT_FB1_1_2-OUT_FB1_1j_2 and the input terminal IN_1_2 according to the control signal CTR, and so on. Therefore, the wireless communication device 40 shown in FIG. 4 can transmit and receive a plurality of wireless signals WR_FB1_1-WR_FB1_1j, WR_FB2_1-WR_FB2_2j, ..., WR_FBk_1-WR_FBk_kj, and each of the plurality of antennas ANT_1-ANT_i according to the operating frequency band FB1-FBk. Corresponding channel quality, connecting each wireless communication module WR_MOD_1-WR_MOD_n to one of the antennas ANT_1-ANT_i.

For further explanation of the conceptual purpose of the wireless communication device 40 of the embodiment shown in FIG. 4, please refer to FIG. 5. FIG. 5 is a schematic diagram of a wireless communication device 50 according to still another embodiment of the present invention. As shown in FIG. 5, the wireless communication device 50 is an example of k=2, j=2, and i=6 of the wireless communication device 40. Therefore, the wireless communication device 50 includes a wireless communication module WR_MOD_1-WR_MOD_4, an RF front end circuit 500, a control unit 510, and antennas ANT_1-ANT_6. A switch module 520 of the RF front end circuit 500 includes first switch units PW_1-PW_4 and second switch units SSW_1-SSW_12. In the present example, the first switching units PW_1-PW_4 may be single-pole 6-throw switches and the second switching units SSW_1-SSW_12 may be single-pole double-throw switches. A frequency multiplexing module 530 of the RF front end circuit 500 includes a plurality of frequency multiplexing units FM_1-FM_6. It should be noted that the wireless signals WR_FB1_1 and WR_FB1_2 outputted by the wireless communication modules WR_MOD_1 and WR_MOD_2 correspond to the same operating frequency band FB_1, and the wireless signals WR_FB2_1 and WR_FB2_2 outputted by the wireless communication modules WR_MOD_3 and WR_MOD_4 correspond to the same operating frequency band FB_2. The control unit 510 adjusts the control signal CTR to detect multiple antennas corresponding to the transmission and reception of the plurality of wireless signals WR_FB1_1, WR_FB1_2, WR_FB2_1 and WR_FB2_2. The channel quality of each of ANT_1-ANT_6 is determined by the quality of each channel detected and the operating frequency bands FB_1 and FB_2. It should be noted that the control unit 510 does not select the same antenna for the wireless signals corresponding to the same operating band. According to the control signal CTR, the first switching unit PSW_1-PSW_4 of the switch module 200 and the second switching unit SSW_1-SSW_12 are connected to each of the wireless communication modules WR_MOD_1-WR_MOD_4 to one of the frequency multiplexing units FM_1-FM_6. Therefore, the frequency multiplexing unit FM_1-FM_6 can selectively perform multiplexing on the connection between the wireless signals WR_FB1_1, WR_FB1_2, WR_FB2_1, WR_FB2_2 and the antenna ANT_1-ANT_6. Furthermore, each of the antennas ANT_1-ANT_6 can be a multi-band antenna that can transmit and receive signals at a plurality of different frequencies.

It can be seen that the foregoing embodiment of the present invention can adjust the connection between the wireless communication unit and the antenna according to each operating frequency band of each wireless signal and the quality of each channel corresponding to the antenna for transmitting and receiving each wireless signal, so as to optimize the wireless communication module. performance. Depending on the needs of the system, those skilled in the art can make appropriate modifications to the embodiments of the present invention. For example, please refer to FIG. 6. FIG. 6 is a schematic diagram of a wireless communication device 60 according to an embodiment of the present invention. The wireless communication device 60 is an example of the wireless communication device 50 shown in FIG. 5. Therefore, the wireless communication device 60 has a structure similar to that of the wireless communication device 50, and uses the same component symbols as the wireless communication device 50. The wireless communication device 60 is different from the wireless communication device 50 shown in FIG. 5 in that, in the wireless communication device 60, the single-pole 6-throw switch of the first switching unit PSW_1-PSW_4 becomes a single-pole, three-throw switch. In addition, the number of second switching units is reduced from 12 to 6, and from a single pole double throw switch to a double pole double throw switch. About wireless For a detailed description of the communication device 60, reference may be made to the foregoing, and details are not described herein again. As can be seen from the foregoing, the wireless communication device 60 shown in FIG. 6 halve the number of second switching units and simplify the structure of the switch module 520.

In addition, the flexibility and practicality of the RF front end circuit can be increased in various embodiments of the present invention when considering different antenna patterns. Referring to FIG. 7, FIG. 7 is a schematic diagram of a wireless communication device 70 in accordance with an embodiment of the present invention. The wireless communication device 40 includes a wireless communication module WR_MOD_1-WR_MOD_4, an RF front end circuit 700, a control unit 710, and antennas ANT_1-ANT_6. The RF front end circuit 700 includes a switch module 720 and a frequency multiplexing module 730. The configuration of the wireless communication device 70 is similar to that of the wireless communication device 50 shown in FIG. 5, and therefore the same reference numerals are used for the wireless communication device 50. The wireless communication device 70 is different from the wireless communication device 50 in that the antennas ANT_1-ANT_6 are classified into a first group of antennas including antennas ANT_1-ANT_3 and a second group of antennas including antennas ANT_4-ANT_6 according to different antenna patterns. For example, the antenna patterns of the first group may be antennas suitable for transmitting and receiving wireless signals along the vertical pole, and the antenna patterns of the second group may be antennas suitable for transmitting and receiving wireless signals along the horizontal electrodes. Since ANT_1-ANT_6 is classified into two groups according to different antenna patterns, the switch module 720 is also adjusted to include the first switching units PSW_1 and PSW_2 and the second switching units SSW_1-SSW_4. In this embodiment, the first switching units PSW_1 and PSW_2 may be double pole double throw (DPDT) switches, and the second switching units SSW_1-SSW_4 may be single pole 3 throw (SP3T) switches. Therefore, in this embodiment, the wireless communication device 70 can transmit and receive wireless signals in a specific direction by connecting the wireless communication module to a specific antenna group.

Specifically, the first group of antennas are connected to the second switching units SSW_1 and SSW_3 through the frequency multiplexing unit FM_1-FM_3, and the second group of antenna transmission frequency multiplexing units FM_4-FM_6 are connected to the second switching unit SSW_2 and SSW_4. The wireless communication device 70 controls the wireless communication modules (ie, the wireless communication modules WR_MOD_1 and WR_MOD_2, or the wireless communication modules WR_MOD_3 and WR_MOD_4) and the second switching unit SSW_1 corresponding to the same operating frequency band through the first switching units PSW_1 and PSW_2. - The connection between the SSW_4 is turned on and off to separately connect the wireless communication module corresponding to the same operating band to one of the two sets of antennas. Therefore, the wireless communication device 70 can connect the wireless communication module to a specific group of antennas to transmit and receive wireless signals in a specific direction. Meanwhile, referring to the foregoing, when the antennas ANT_1-ANT_6 are divided into two groups, the switch module 720 is further simplified.

In summary, through the RF processing unit of the present invention, the wireless communication module can be independently connected to the antenna according to the channel quality corresponding to each antenna of each wireless signal generated by the wireless communication module. In other words, the present invention allows each wireless communication unit to individually select an antenna for transmitting and receiving wireless signals to optimize the performance of all wireless communication modules.

The present invention has been described above with reference to the specific embodiments, and is merely illustrative of the technical scope of the present invention, and is not intended to limit the scope of the present invention to the embodiments. In the spirit and scope of the invention, the scope of the invention is defined by the scope of the appended claims.

10, 20, 30, 40, 50, 60, 70‧‧‧ wireless communication devices

WR_MOD_1-WR_MOD_n‧‧‧Wireless Communication Module

100, 200, 300, 400, 500, 600, 700‧‧‧ RF front-end circuits

ANT_1-ANT_i‧‧‧Antenna

110, 210, 310, 410, 510, 610, 710‧‧‧ control unit

WR_1-WR_n, WR_FB1_1-WR_FB1_1j, WR_FB2_1-WR_FB2_2j, ..., WR_FBk_1-WR_FBk_kj‧‧‧ Wireless signal

CTR‧‧‧ control signal

120, 220, 320, 420, 520, 620, 720‧‧‧ switch modules

130, 230, 330, 430, 530, 630, 730 ‧ ‧ frequency multiplex module

IN_1_1-IN_1_i, IN_2_1-IN_2_i,..., N_n_1-IN_n_i‧‧‧ inputs

PSW_1-PSW_n‧‧‧First switch unit

FM_1-FM_i‧‧‧ frequency multiplex unit

FB1-FBk‧‧‧Operating band

SSW_1-SSW_m‧‧‧Second switch unit

OUT_FB1_1_1-OUT_FB1_1_i‧‧‧ Output

1 is a schematic diagram of a wireless communication device 10 in accordance with an embodiment of the present invention.

2 is a schematic diagram of a wireless communication device 20 in accordance with an embodiment of the present invention.

3 is a schematic diagram of a wireless communication device 30 in accordance with an embodiment of the present invention.

4 is a schematic diagram of a wireless communication device 40 in accordance with an embodiment of the present invention.

FIG. 5 is a schematic diagram of a wireless communication device 50 in accordance with an embodiment of the present invention.

Figure 6 is a schematic illustration of a wireless communication device 60 in accordance with an embodiment of the present invention.

Figure 7 is a schematic illustration of a wireless communication device 70 in accordance with an embodiment of the present invention.

10‧‧‧Wireless communication device

WR_MOD_1-WR_MOD_n‧‧‧Wireless Communication Module

100‧‧‧RF front-end circuit

ANT_1-ANT_i‧‧‧Antenna

110‧‧‧Control unit

120‧‧‧Switch Module

130‧‧‧Frequency multiplex module

CTR‧‧‧ control signal

WR_1-WR_n‧‧‧Wireless signal

IN_1_1-IN_1_i, IN_2_1-IN_2_i,..., IN_n_1-IN_n_i‧‧‧ inputs

Claims (14)

A radio frequency processing circuit for use in a wireless communication device, the radio frequency processing circuit comprising: a radio frequency front end circuit coupled to the plurality of antennas and the plurality of wireless communication modules for controlling the plurality of signals according to a control signal And a connection between the antenna and the plurality of wireless communication modules; and a control unit coupled to the radio frequency front end circuit for determining a frequency band and operation of each of the plurality of wireless communication modules The environment generates the control signal; wherein each of the plurality of wireless communication modules is coupled to one of the plurality of antennas, and the plurality of wireless communication modules are coupled to the plurality of antennas to be the same or different Antenna. The radio frequency processing circuit of claim 1, wherein the control unit is based on channel quality of a plurality of channels between each of the plurality of wireless communication modules and each of the plurality of antennas The control signal is generated. The radio frequency processing circuit of claim 1, wherein the radio frequency front end circuit comprises: a frequency multiplexing module comprising a plurality of input terminals, and the frequency multiplexing module is coupled to the plurality of antennas And multiplexing signals between the plurality of inputs and the plurality of antennas; and a switch module coupled to the plurality of wireless communication modules and the frequency multiplexing a module, configured to control, according to the control signal, a connection between the plurality of wireless communication modules and the plurality of input terminals; wherein the plurality of input ends are coupled to the same frequency corresponding to the plurality of different frequency bands Multiplexed modules. The radio frequency processing circuit of claim 3, wherein the switch module comprises: a plurality of first switch units, each of the plurality of first switch units being coupled to the plurality of wireless communication modules One of the group and the frequency multiplexing module are configured to control the connection between the one of the plurality of wireless communication modules and the plurality of input terminals according to the control signal. The radio frequency processing circuit of claim 3, wherein the switch module comprises: a plurality of first switch units, each of the plurality of first switch units being coupled to the plurality of wireless communication modules One of the groups for controlling the connection between one of the plurality of wireless communication modules and the plurality of first output terminals according to the control signal; and a plurality of second switching units, the plurality of Each of the second switching units is coupled to the frequency multiplexing module and the plurality of first switching units for controlling connection between the plurality of first switching units and the plurality of input terminals; The first output end of each of the plurality of first switch units respectively corresponding to each of the plurality of antennas, and each of the plurality of antennas is coupled to the pair The same second switching unit should be in the same frequency band. The radio frequency processing circuit of claim 3, wherein the switch module comprises: a plurality of first switching units, each of the plurality of first switching units being coupled to a plurality of the same frequency band a wireless communication module, configured to control a connection between the plurality of wireless communication modules having the same frequency band and a plurality of first output terminals according to the control signal; and a plurality of second switching units, the plurality of Each of the switching units is coupled to the frequency multiplexing module and one of the plurality of first switching units for controlling a connection between the plurality of first output terminals and the plurality of input terminals Turning on; wherein the plurality of inputs are coupled to the same second switch unit corresponding to a group of antennas. The radio frequency processing circuit of claim 1, wherein one of the plurality of antennas is a multi-band antenna. A wireless communication device comprising: a plurality of wireless communication modules; a plurality of antennas for transmitting or receiving a plurality of wireless signals generated by the plurality of wireless communication modules; and a radio frequency processing circuit comprising: a radio processing unit , coupled to the plurality of antennas and the plurality of wireless a communication unit for controlling the connection between the plurality of wireless communication modules and the plurality of wireless communication modules according to a control signal; and a control unit coupled to the plurality of wireless communication modules and the radio processing unit The control signal is generated according to an operating environment of each of the plurality of wireless communication modules; wherein each of the plurality of wireless communication modules is coupled to one of the plurality of antennas, and the A plurality of wireless communication modules are coupled to the same or different antennas of the plurality of antennas. The wireless communication device of claim 8, wherein the control unit generates channel quality according to a plurality of channels between each of the plurality of wireless communication modules and each of the plurality of antennas The control signal. The wireless communication device of claim 8, wherein the radio frequency front end circuit comprises: a frequency multiplexing module, comprising a plurality of input terminals, and the frequency multiplexing module is coupled to the plurality of antennas, Performing multiplexing for the signal between the plurality of inputs and the plurality of antennas; and a switch module coupled to the plurality of wireless communication modules and the frequency multiplexing module for Controlling the connection between the plurality of wireless communication modules and the plurality of input terminals according to the control signal; wherein the plurality of input ends are coupled to the same frequency multiplexing module corresponding to the plurality of different frequency bands. The wireless communication device of claim 10, wherein the switch module comprises: a plurality of first switch units, each of the plurality of first switch units being coupled to the plurality of wireless communication modules And one of the frequency multiplexing modules is configured to control the connection between the one of the plurality of wireless communication modules and the plurality of input terminals according to the control signal. The wireless communication device of claim 10, wherein the switch module comprises: a plurality of first switch units, each of the plurality of first switch units being coupled to the plurality of wireless communication modules One of the plurality of wireless communication modules controlling the connection between the one of the plurality of wireless communication modules and the plurality of first output terminals according to the control signal; and the plurality of second switching units, the plurality of Each of the two switch units is coupled to the frequency multiplex module and the plurality of first switch units for controlling connection between the plurality of first switch units and the plurality of inputs; The first output of each of the plurality of first switching units respectively corresponds to each of the plurality of antennas, and each of the plurality of antennas is coupled to the same second switch having the same frequency band unit. The wireless communication device of claim 10, wherein the switch module comprises: a plurality of first switching units, each of the plurality of first switching units being coupled to a plurality of wireless communication modules having the same frequency band for controlling the plurality of wireless communications having the same frequency band according to the control signal a connection between the module and the plurality of first output ends; and a plurality of second switching units, each of the plurality of first switching units being coupled to the frequency multiplexing module and the plurality of One of the switching units for controlling the connection between the plurality of first output terminals and the plurality of input terminals; wherein the plurality of input terminals are coupled to the same second corresponding to the group of antennas Switch unit. The wireless communication device of claim 8, wherein one of the plurality of antennas is a multi-band antenna.