CN116723521A - System for solving coexistence interference of LTE B18 frequency band and WIFI2.4G - Google Patents
System for solving coexistence interference of LTE B18 frequency band and WIFI2.4G Download PDFInfo
- Publication number
- CN116723521A CN116723521A CN202310254970.3A CN202310254970A CN116723521A CN 116723521 A CN116723521 A CN 116723521A CN 202310254970 A CN202310254970 A CN 202310254970A CN 116723521 A CN116723521 A CN 116723521A
- Authority
- CN
- China
- Prior art keywords
- pole double
- throw switch
- chip
- lteb18
- frequency band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001413 cellular effect Effects 0.000 claims description 18
- 230000035945 sensitivity Effects 0.000 abstract description 17
- 230000002238 attenuated effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000000586 desensitisation Methods 0.000 description 2
- 230000010267 cellular communication Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
The invention discloses a system for solving the coexistence interference of LTEB18 frequency band and WIFI2.4G, comprising: the first chip, second chip, transceiver, first single-pole double-throw switch and second single-pole double-throw switch are connected to the first chip, first front end module is connected to the first front end module, the transceiver is connected to the second front end module, first single-pole double-throw switch is connected to the second front end module, second single-pole double-throw switch is connected to the first single-pole double-throw switch, second single-pole double-throw switch and wave filter are connected to the first single-pole double-throw switch, notch network and second antenna are connected to the second single-pole double-throw switch, and notch network is connected to the wave filter. The beneficial effects of the invention are as follows: when the LTEB18 and the WIFI2.4G work simultaneously, the interference of the third harmonic of the LTEB18 to the WIFI2.4G receiving path is reduced, and the receiving sensitivity of WIFI2.4G is improved; when the LTEB18 and WIFI2.4G do not operate simultaneously, the filter and the notch network are not attenuated by the change-over switch, and the working range of the LTEB18 is not affected.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a system for solving the coexistence interference of an LTEB18 frequency band and WIFI2.4G.
Background
LTE is a wireless broadband technology that supports roaming internet access using cellular phones and handsets, a significant improvement to cellular communication standards, and WIFI is a technology that implements wireless local area networks in accordance with the IEEE 802.11 standard. LTE and WIFI technologies, such as cell phones, tablets, may exist simultaneously in some devices. Due to device size limitations, isolation and WIFI sensitivity issues may exist.
In the prior art, when the power of the frequency band of the cellular circuit LTEB18 is radiated through the cellular antenna, third harmonic waves generated synchronously can be radiated through the cellular antenna, and the isolation between the cellular antenna and the WIFI antenna cannot be made particularly large due to the size of a mobile phone, connecting equipment or a portable broadband wireless device product, and is only 15-20dB under normal conditions. When the cellular circuit LTEB18 emits high power, the third harmonic generated by the power amplifier is about-20 dBm, the attenuation value of the RF front end module duplexer is about 30dB, the power radiated by the third harmonic through the cellular antenna is about-50 dBm through calculation, the maximum attenuation of the isolation between the two antennas is 20dB, and finally the power of the third harmonic received by the LTEB18 by the WIFI antenna is about-70 dBm. The power is directly fed into the passband of the WIFI2.4G receiver, and the sensitivity of the WIFI is at least desensitized by more than 20dB according to theoretical calculation, so that the WIFI receiver is seriously blocked, the throughput rate is reduced, and the online experience of a client is seriously affected. There is a problem that the third harmonic of the reception path cannot be reduced and the reception sensitivity cannot be improved.
For example, a "an anti-interference wireless video transmission method and system based on 2.4G wireless technology" disclosed in chinese patent literature, its bulletin number: CN109167970a, filing date: the wireless video monitoring device transmits the acquired video data to the wifi equipment on the 10 th and 11 th 2018 days, and converts a 2.4G frequency band signal of the wifi equipment into a wireless signal with a 500M-1G frequency band through the frequency conversion device and sends the wireless signal to a space; the frequency conversion device at the host end converts the received 500M-1G frequency band wireless signal into a 2.4G frequency band signal and then transmits the 2.4G frequency band signal to wifi equipment; the wifi equipment transmits the received video data to the host system for processing, and has the advantages of high transmission speed, high anti-interference capability and good diffraction capability. However, there is a problem that the third harmonic of the reception path cannot be reduced and the reception sensitivity cannot be improved.
Disclosure of Invention
Aiming at the defects that the third harmonic of a WIFI antenna access cannot be reduced and the receiving sensitivity cannot be improved in the prior art, the invention provides a system for solving the coexistence interference of an LTEB18 frequency band and WIFI2.4G, and when LTEB18 and WIFI2.4G work simultaneously, the interference of the third harmonic of the LTEB18 on a WIFI2.4G receiving access is reduced, and the WIFI2.4G receiving sensitivity is improved; when the LTEB18 and WIFI2.4G do not operate simultaneously, the filter and the notch network are not attenuated by the change-over switch, and the working range of the LTE B18 is not affected.
The following is a technical scheme of the invention, a system for solving the coexistence interference of LTE B18 frequency band and WIFI2.4G, comprising: the first chip, second chip, transceiver, first single-pole double-throw switch and second single-pole double-throw switch are connected to the first chip, first front end module is connected to the first front end module, the transceiver is connected to the second front end module, first single-pole double-throw switch is connected to the second front end module, second single-pole double-throw switch is connected to the first single-pole double-throw switch, second single-pole double-throw switch and wave filter are connected to the first single-pole double-throw switch, notch network and second antenna are connected to the second single-pole double-throw switch, and notch network is connected to the wave filter.
In the scheme, the signal of the first antenna is transmitted to the second chip through the first front-end module and then transmitted to the first chip through the second chip, the signal of the second antenna in the first scheme is directly transmitted to the transceiver through the second front-end module, the signal of the second antenna in the second scheme passes through the notch network and the filter in sequence, and the signal is transmitted to the transceiver and then transmitted to the first chip. The first chip is used for controlling the switch states of the first single-pole double-throw switch and the second single-pole double-throw switch, and the scheme is switched through the first single-pole double-throw switch and the second single-pole double-throw switch. The third harmonic of the WIFI antenna path can be reduced, and the receiving sensitivity can be improved.
Preferably, the filter is a low pass filter having an attenuation of about 30dB in the 2.4G-2.5GHz band.
In the scheme, the filter is a low-pass filter, the model of the filter is DEA160960LT-5059A1, the attenuation value of the filter is about 30dB in the frequency band of 2.4G-2.5GHz, and the third harmonic of a WIFI antenna path is reduced.
Preferably, the notch network consists of LC with an attenuation of about 10dB in the 2.44G-2.5GHz band.
In the scheme, the notch network consists of LC, the composite LC parallel resonance notch network attenuates about 10dB in the frequency band of 2.44G-2.5GHz, and the third harmonic of a WIFI antenna path is reduced.
Preferably, the common end of the first single-pole double-throw switch is connected with the second front end module, the first end is connected with the third end of the second single-pole double-throw switch, and the second end is connected with the filter.
In the scheme, a public end of a first single-pole double-throw switch is connected with a second front end module, the first end is connected with a third end of the second single-pole double-throw switch to form an A path, the second end is connected with a filter, and the filter is connected with a notch network to form a B path. The switching of the a path and the B path can be performed based on a single pole double throw switch.
Preferably, the common terminal of the second single pole double throw switch is connected to the second antenna, and the fourth terminal is connected to the notch network.
In the scheme, a public end of a second single-pole double-throw switch is connected with a second antenna, a third end of the second single-pole double-throw switch is connected with a first end of a first single-pole double-throw switch to form an A path, a fourth end of the second single-pole double-throw switch is connected with a notch network, and the notch network is connected with a filter to form a B path. The switching of the a path and the B path can be performed based on a single pole double throw switch.
Preferably, the first chip is connected to the first single pole double throw switch and the second single pole double throw switch through GPIO control pins.
In the scheme, the pin of the GPIO is connected with external hardware equipment, so that the functions of communicating with the outside, controlling the external hardware or collecting external hardware data can be realized, the first chip is connected with the first single-pole double-throw switch and the second single-pole double-throw switch through the GPIO control pin, and the connecting channels of the first single-pole double-throw switch and the second single-pole double-throw switch can be controlled through the transceiver, so that channel switching is realized.
Preferably, the first chip is a core control chip, and the second chip is a WIFI chip.
Preferably, the first front-end module transmits a WIFI2.4G signal, and the second front-end module transmits a cellular circuit LTE B18 band signal.
Preferably, when the LTE B18 band and WIFI2.4G do not operate simultaneously, the first single pole double throw switch is switched to the first end, and the second single pole double throw switch is switched to the third end.
In the scheme, when the first chip detects that the LTE B18 frequency band and the WIFI2.4G of the cellular circuit do not work simultaneously, the GPIO control pin of the first chip is used for controlling the first single-pole double-throw switch and the second single-pole double-throw switch, the first end of the first single-pole double-throw switch is connected with the third end of the second single-pole double-throw switch, a channel of the LTE B18 frequency band does not pass through a filter and a notch network, and is directly transmitted through the channel A, so that the power of the LTE B18 main frequency band cannot be attenuated.
Preferably, when the LTE B18 band and the WIFI2.4G band are simultaneously operated, the first single-pole double-throw switch is switched to the second end, and the second single-pole double-throw switch is switched to the fourth end.
In the scheme, when the first chip detects that the LTE B18 frequency band and the WIFI2.4G frequency band of the cellular circuit work simultaneously, the GPIO control pin of the first chip controls the first single-pole double-throw switch and the second single-pole double-throw switch, the second end of the first single-pole double-throw switch is connected with the filter, the filter is connected with the notch network, the notch network is connected with the fourth end of the second single-pole double-throw switch, and the LTE B18 transmitting information is transmitted through the B path. And the B path suppresses third harmonic generated by the LTE B18 frequency band by using a low-pass filter and an LC formed notch network to reduce interference on the receiving sensitivity of the WIFI2.4G frequency band.
The beneficial effects of the invention are as follows: when the LTE B18 frequency band of the cellular circuit and the WIFI2.4G work simultaneously, a new circuit is selected through a switch, so that the interference of the LTE B18 third harmonic on WIFI2.4G receiving sensitivity is reduced, the WIFI antenna path third harmonic is reduced to-110 dBm from-70 dBm, and the WIFI sensitivity desensitization is reduced to within 1dB from the original 20 dB; when the LTE B18 and the WIFI2.4G do not work simultaneously, the filter and the notch network do not attenuate the LTE B18 transmitting power through the change-over switch, and the working range of the LTE B18 is not affected. The receiving sensitivity is effectively improved, the WIFI2.4G throughput rate is improved, the WIFI throughput rate is improved, and the client Internet surfing experience is improved.
Drawings
Fig. 1 is a schematic diagram of a system for solving coexistence interference of LTE B18 frequency band and WIFI 2.4G.
In the figure 1, a first chip; 2. a second chip; 3. a first front end module; 4. a first antenna; 5. a transceiver; 6. a second front end module; 7. a first single pole double throw switch; 8. a second single pole double throw switch; 9. a filter; 10. a notch network; 11. and a second antenna.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
Examples: as shown in fig. 1, a system for solving coexistence interference of LTE B18 band and WIFI2.4G includes:
the first chip 1, the second chip 2 and transceiver 5 are connected to first chip 1, first front end module 3 is connected to second chip 2, first antenna 4 is connected to first front end module 3, second front end module 6 is connected to transceiver 5, the public end of first single pole double throw switch 7 is connected to second front end module 6, the third end of second single pole double throw switch 8 is connected to the first end of first single pole double throw switch 7, filter 9 is connected to the second end of first single pole double throw switch 7, filter 9 is connected to notch network 10, the fourth end of second single pole double throw switch 8 is connected to notch network 10, second antenna 11 is connected to the public end of second single pole double throw switch 8, first chip 1 passes through GPIO control pin and connects first single pole double throw switch 7 and second single pole double throw switch 8.
The signal of the first antenna 4 is transmitted to the second chip 2 through the first front-end module, then is transmitted to the first chip 1 through the second chip 2, the signal of the second antenna 11 in the first scheme is directly transmitted to the transceiver 5 through the second front-end module 6, and the signal of the second antenna 11 in the second scheme is sequentially transmitted to the transceiver 5 through the notch network 10 and the filter 9, and then is transmitted to the first chip 1. The first chip 1 is used for controlling the switch states of the first single-pole double-throw switch 7 and the second single-pole double-throw switch 8, and the scheme is switched through the first single-pole double-throw switch 7 and the second single-pole double-throw switch 8. The third harmonic of the WIFI antenna path can be reduced, and the receiving sensitivity can be improved.
The first chip 1 is a core control chip, and is a chip for synthesizing a baseband signal to be transmitted or decoding a received baseband signal. During transmission, voice or other data signals are encoded into a baseband code for transmission; when receiving, the received baseband code is decoded into voice or other data signals, which mainly completes the information processing function of the communication terminal.
The second chip 2 is a WIFI chip, the first front end module 3 is a WIFI front end module, the WIFI2.4G signal is transmitted, and the first antenna 4 is a WIFI2.4G antenna. The GPIO control pin of the first chip 1 outputs high and low levels and controls the switch of the first single-pole double-throw switch 7 and the second single-pole double-throw switch 8.
The transceiver 5 is a radio frequency transceiver semiconductor that converts digital signals from a modem chip into analog signals and converts them into radio frequencies that can be used by people, and at the same time, converts external signals into digital signals and transmits them to the modem.
The second front-end module 6 is a cellular front-end module and transmits signals in the LTE B18 frequency band of the cellular circuit. The filter 9 is a low-pass filter, and the model is DEA160960LT-5059A1, and the attenuation value of the filter is about 30dB in the frequency band of 2.4G-2.5 GHz. The notch network 10 is composed of LC, and the composite LC parallel resonant notch network 10 attenuates by about 10dB in the 2.44G-2.5GHz band. The second antenna 11 is a cellular antenna.
When the first chip 1 detects that the frequency band of the LTE B18 and the WIFI2.4G of the cellular circuit do not work simultaneously, the GPIO control pin of the first chip 1 controls the first single-pole double-throw switch 7 and the second single-pole double-throw switch 8, the first end of the first single-pole double-throw switch 7 is connected with the third end of the second single-pole double-throw switch 8, a channel of the LTE B18 frequency band does not pass through the filter 9 and the notch network 10, and is directly transmitted through the channel A, so that the power of the main frequency band of the LTE B18 cannot be attenuated.
When the first chip 1 detects that the frequency band of the LTE B18 and the WIFI2.4G of the cellular circuit work simultaneously, the GPIO control pin of the first chip 1 controls the first single-pole double-throw switch 7 and the second single-pole double-throw switch 8, the second end of the first single-pole double-throw switch 7 is connected with the filter 9, the filter 9 is connected with the notch network 10, the notch network 10 is connected with the fourth end of the second single-pole double-throw switch 8, and the LTE B18 transmitting information is transmitted through the B path. The B path suppresses third harmonic generated in the LTE B18 band by using a low-pass filter and LC component notch network 10 to reduce interference to the WIFI2.4G band receiving sensitivity.
The attenuation value of the filter 9 in the frequency band of 2.4G-2.5GHz is about 30dB, and the attenuation of the notch network 10 in the frequency band of 2.44G-2.5GHz is about 10dB, so that the total attenuation is about 40dB through the B path.
The third harmonic of the WIFI antenna path is reduced to-110 dBm from-70 dBm, and the sensitivity desensitization of the WIFI is reduced to within 1dB from the original 20dB, so that the receiving sensitivity is effectively improved, and the throughput rate of the WIFI2.4G is improved. When the LTE B18 frequency band of the cellular circuit and the WIFI2.4G work simultaneously, a new circuit is selected through a switch, interference of the LTE B18 third harmonic on WIFI2.4G receiving sensitivity is reduced, the WIFI throughput rate is improved, and the Internet surfing experience of customers is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A system for resolving co-existence interference of an LTEB18 band and WIFI2.4G, comprising: the first chip, second chip, transceiver, first single-pole double-throw switch and second single-pole double-throw switch are connected to the first chip, first front end module is connected to the first front end module, the transceiver is connected to the second front end module, first single-pole double-throw switch is connected to the second front end module, second single-pole double-throw switch is connected to the first single-pole double-throw switch, second single-pole double-throw switch and wave filter are connected to the first single-pole double-throw switch, notch network and second antenna are connected to the second single-pole double-throw switch, and notch network is connected to the wave filter.
2. The system of claim 1, wherein the filter is a low pass filter having an attenuation of about 30dB in the 2.4G-2.5GHz band.
3. A system for resolving co-existence interference in the frequency band of LTEB18 with WIFI2.4G as claimed in claim 1, wherein the notch network consists of LC with attenuation of about 10dB in the 2.44G-2.5GHz frequency band.
4. The system for solving co-existence interference of LTEB18 frequency band and WIFI2.4G as claimed in claim 1, wherein the common terminal of the first single pole double throw switch is connected to the second front end module, the first terminal is connected to the third terminal of the second single pole double throw switch, and the second terminal is connected to the filter.
5. A system for resolving co-existence interference between the frequency band of LTEB18 and WIFI2.4G as claimed in claim 1 or 4, wherein the common terminal of the second single pole double throw switch is connected to the second antenna and the fourth terminal is connected to the notch network.
6. The system for resolving co-existence interference of the frequency band of LTEB18 and WIFI2.4G as claimed in claim 1, wherein the first chip is connected to the first single pole double throw switch and the second single pole double throw switch through GPIO control pins.
7. The system for solving co-existence interference of LTEB18 frequency band and WIFI2.4G as claimed in claim 1, wherein the first chip is a core control chip and the second chip is a WIFI chip.
8. A system for resolving co-existence interference between the LTEB18 band and WIFI2.4G as claimed in claim 1 or 7, wherein the first front-end module transmits WIFI2.4G signals and the second front-end module transmits cellular LTEB18 band signals.
9. The system of claim 5, wherein the first single pole double throw switch is switched to the first terminal and the second single pole double throw switch is switched to the third terminal when the frequency bands of the LTEB18 and the WIFI2.4G are not simultaneously operated.
10. The system of claim 5, wherein when the frequency bands of the LTEB18 and the WIFI2.4G are operated simultaneously, the first single pole double throw switch is switched to the second terminal, and the second single pole double throw switch is switched to the fourth terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310254970.3A CN116723521A (en) | 2023-03-16 | 2023-03-16 | System for solving coexistence interference of LTE B18 frequency band and WIFI2.4G |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310254970.3A CN116723521A (en) | 2023-03-16 | 2023-03-16 | System for solving coexistence interference of LTE B18 frequency band and WIFI2.4G |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116723521A true CN116723521A (en) | 2023-09-08 |
Family
ID=87873995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310254970.3A Pending CN116723521A (en) | 2023-03-16 | 2023-03-16 | System for solving coexistence interference of LTE B18 frequency band and WIFI2.4G |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116723521A (en) |
-
2023
- 2023-03-16 CN CN202310254970.3A patent/CN116723521A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6658263B1 (en) | Wireless system combining arrangement and method thereof | |
| KR100602969B1 (en) | Multi-mode mobile communications device with continuous mode transceiver and methods therefor | |
| US20120113873A1 (en) | Multi-Band and Multi-Mode Antenna System and Method | |
| CN110380754B (en) | Dual-frequency time division signal receiving and transmitting amplifier | |
| CN111431545B (en) | Electronic equipment and communication interference control method | |
| CN101917219A (en) | Antenna multiplexing method, device and wireless terminal | |
| CN105680981B (en) | A kind of Combined type mobile phone signal interference device and its interference method | |
| CN103348600A (en) | Concurrent-access dual-band terminal operating in two adjacent bands | |
| CN111756399A (en) | Radio frequency circuit and electronic equipment | |
| KR100711015B1 (en) | Wireless system combining arrangement and method thereof | |
| KR20120077695A (en) | Multimode wireless modem | |
| KR101641987B1 (en) | Mobile terminal and method for receiving and transmitting radio frequency signal | |
| US9913172B2 (en) | Method for enabling coexistence of multiple wireless communication modes in mobile terminal and mobile terminal thereof | |
| CN100579265C (en) | Shared radio frequency front end, base station and rdio frequency front end sharing method | |
| JP4039932B2 (en) | Communication apparatus and communication control method | |
| CN116723521A (en) | System for solving coexistence interference of LTE B18 frequency band and WIFI2.4G | |
| KR20050032501A (en) | Rf receivers with reduced spurious response for mobile stations and methods therefor | |
| CN217010858U (en) | Radio frequency circuit and electronic equipment | |
| EP4084360A1 (en) | Repeater system configured to adjust settings based on user equipment communication metrics | |
| CN114204960B (en) | Radio frequency front-end module, signal control method and electronic equipment | |
| WO2021143756A1 (en) | Radio frequency system and electronic device | |
| CN113994610B (en) | Method and apparatus for a low power communication link between wireless devices | |
| CN214591429U (en) | Radio frequency transceiver based on quadruplex ware | |
| US20240080103A1 (en) | Repeater with Field-Configured Fiber/Radio Frequency (RF) Mode | |
| CN116865779A (en) | Radio frequency circuit and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |