CN102412858A - Radio frequency transceiver, terminal and method for receiving signal for terminal - Google Patents
Radio frequency transceiver, terminal and method for receiving signal for terminal Download PDFInfo
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- CN102412858A CN102412858A CN2011103461330A CN201110346133A CN102412858A CN 102412858 A CN102412858 A CN 102412858A CN 2011103461330 A CN2011103461330 A CN 2011103461330A CN 201110346133 A CN201110346133 A CN 201110346133A CN 102412858 A CN102412858 A CN 102412858A
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- 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
- H04B1/1081—Reduction of multipath noise
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Abstract
The invention provides a radio frequency transceiver, a terminal and a method for receiving a signal for the terminal. The radio frequency transceiver is applied to the terminal and comprises a radio frequency transceiving chip. The terminal comprises a main receiving system and at least one auxiliary receiving system, wherein the main receiving system comprises a main antenna, a main receiving module and the radio frequency transceiver which are connected in sequence; the auxiliary receiving system comprises an auxiliary antenna and an auxiliary receiving module which are connected in sequence; the radio frequency transceiver also comprises a signal processing module, wherein the signal processing module is connected with the radio frequency transceiving chip and is used for synchronously receiving signals sent from the main receiving module and the auxiliary receiving module which corresponds to an idle auxiliary antenna; multiple paths of received signals are combined into one path of signal; and then, the one path of signal is output to the radio frequency transceiving chip. The radio frequency transceiver and the terminal can synchronously receive a substation signal by the main antenna and the idle auxiliary antenna in a multiplexing receiving mode to realize the purpose of multipath receiving, and received signal transmission speed and signal receiving intensity are greatly improved.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to the method that a kind of RF transceiver, terminal and terminal receive signal.
Background technology
Development along with the mobile phone terminal market demand; The design integrated level complexity of mobile phone is increasingly high; High-end mobile phone terminal is often integrated bluetooth, Wireless Fidelity (WIFI), broadcast receiver (FM), gravity sensing, earth induction, acceleration induction, global positioning system multiple systems such as (GPS); And relate to signal system for transmitting (such as WIFI, bluetooth, GPS etc.) antenna, transmission receiving front-end and signal processing system will be arranged on mobile phone terminal; And these systems often all are self-existent separately, and are not multiplexing.
As shown in Figure 1, be that traditional mobile phone radio frequency framework of example comprises a plurality of separate radio systems with WCDMA (WCDMA) mobile phone terminal, comprise systems such as WCDMA, bluetooth, WIFI, GPS.The WCDMA system receives signal through main antenna 1, gets into rf chip 7 to duplexer 6 backs to receiving the road via duplexer 4 again; Bluetooth system arrives bluetooth baseband process chip 10 through Bluetooth antenna 2 via bluetooth match circuit 8, bluetooth transceiving chip 9; WIFI, GPS are similar to bluetooth, and the reception antenna through separately receives signal, carry out signal processing via separately match circuit, transceiving chip to baseband chip.
In network communication data when transmission, are carried out at the terminal of above-mentioned framework, exist signal reception to change violent, transmission speed with environmental change and are affected equally and cause problems such as transmission speed is lower.
Summary of the invention
The method that the embodiment of the invention provides a kind of RF transceiver, terminal and terminal to receive signal changes problems such as violent, that transmission speed is lower to solve existing terminal signaling receiving ability with environmental change.
The embodiment of the invention provides a kind of RF transceiver; Be applied in the terminal; Said RF transceiver comprises rf chip, and said terminal comprises a main receiving system and at least one auxilliary receiving system, and said main receiving system comprises main antenna, main receiver module and the said RF transceiver that connects successively; Said auxilliary receiving system comprises auxilliary antenna and the auxilliary receiver module that connects successively, and said RF transceiver also comprises:
Signal processing module links to each other with said rf chip, is used for receiving synchronously the signal that said main receiver module and the corresponding auxilliary receiver module of idle auxilliary antenna send, with exporting said rf chip to behind synthetic one road signal of the multiple signals that receive.
Preferably, said auxilliary receiver module comprises duplexer, match circuit and the filter that connects successively, wherein:
Said match circuit is used to mate the corresponding auxilliary antenna of said auxilliary receiver module, transmits the said signal that said auxilliary antenna receives to said filter;
Said filter is used for the said signal that said match circuit sends is carried out exporting said signal processing module to after the filtering.
Preferably, when the signal of said main antenna reception was WCDMA (WCDMA) signal or code division multiple access (CDMA) signal, said main receiver module comprised duplexer and the duplexer between said main antenna and said signal processing module; Perhaps
Said auxilliary receiving system is at least two; When the signal of said main antenna reception was the signal except that WCDMA signal and CDMA signal, said main receiver module comprised duplexer and the antenna-matching circuit between said main antenna and said signal processing module.
The embodiment of the invention provides a kind of RF transceiver; Be applied in the terminal, said RF transceiver comprises rf chip, and said terminal comprises a main receiving system and at least one auxilliary receiving system; Said main receiving system comprises main antenna, main receiver module and the said RF transceiver that connects successively; Said auxilliary receiving system comprises auxilliary antenna and the auxilliary receiver module that connects successively, and said RF transceiver also comprises signal processing module and the filtration module that connects successively, wherein:
Said signal processing module is used for receiving synchronously the signal that said main receiver module and the corresponding auxilliary receiver module of idle auxilliary antenna send, with exporting said filtration module to behind synthetic one road signal of the multiple signals that receive;
Said filtration module links to each other with said rf chip, is used for exporting said rf chip to after the signal filtering to said signal processing module output.
Preferably, said auxilliary receiver module comprises duplexer and the match circuit that connects successively, wherein:
Said match circuit is used to mate the corresponding auxilliary antenna of said auxilliary receiver module, transmits the said signal that said auxilliary antenna receives to institute's signal processing module.
Preferably, when the signal of said main antenna reception was WCDMA (WCDMA) signal or code division multiple access (CDMA) signal, said main receiver module comprised duplexer and the duplexer between said main antenna and said signal processing module; Perhaps
Said auxilliary receiving system is at least two; When the signal of said main antenna reception was the signal except that WCDMA signal and CDMA signal, said main receiver module comprised duplexer and the antenna-matching circuit between said main antenna and said signal processing module.
The embodiment of the invention provides a kind of terminal; This terminal comprises a main receiving system and at least one auxilliary receiving system; Said main receiving system comprises main antenna, main receiver module and the RF transceiver that connects successively; Said auxilliary receiving system comprises auxilliary antenna and the auxilliary receiver module that connects successively, and what said RF transceiver adopted is above-mentioned RF transceiver.
The embodiment of the invention provides a kind of terminal; This terminal comprises a main receiving system and at least one auxilliary receiving system; Said main receiving system comprises main antenna, main receiver module and the RF transceiver that connects successively; Said auxilliary receiving system comprises auxilliary antenna and the auxilliary receiver module that connects successively, and what said RF transceiver adopted is above-mentioned RF transceiver.
The embodiment of the invention provides a kind of terminal to receive the method for signal, and this method comprises:
The multiple signals of the auxilliary receiving system transmission that said main receiving system of the synchronous reception of the RF transceiver of main receiving system and the auxilliary antenna of free time are corresponding;
Said RF transceiver exports rf chip to after the multiple signals that receive are synthesized one road signal.
The embodiment of the invention provides a kind of terminal to receive the method for signal, and this method comprises:
The multiple signals of the auxilliary receiving system transmission that said main receiving system of the synchronous reception of the RF transceiver of main receiving system and the auxilliary antenna of free time are corresponding;
Said RF transceiver synthesizes one road signal with the multiple signals that receive, and to exporting rf chip to after this road signal filtering.
Above-mentioned RF transceiver and terminal adopt multiplexing receive mode to receive base station signal through main antenna and auxilliary day idle line locking, realize multipath reception, improve greatly to receive signaling rate and signal receiving strength.
Description of drawings
Fig. 1 is the radio architectures sketch map of existing WCDMA mobile phone terminal;
Fig. 2 is the mobile phone radio frequency configuration diagram one of WCDMA mobile phone terminal embodiment of the present invention;
Fig. 3 is the mobile phone radio frequency configuration diagram two of WCDMA mobile phone terminal embodiment of the present invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
The embodiment of the invention provides a kind of RF transceiver; Be applied in the terminal; Said terminal comprises a main receiving system and at least one auxilliary receiving system, and said RF transceiver comprises rf chip, it is characterized in that; Said main receiving system comprises main antenna, main receiver module and the said RF transceiver that connects successively; Said auxilliary receiving system comprises auxilliary antenna and the auxilliary receiver module that connects successively, and said RF transceiver also comprises: signal processing module links to each other with said rf chip; Be used for receiving synchronously the signal that said main receiver module and the corresponding auxilliary receiver module of idle auxilliary antenna send, with exporting said rf chip to behind synthetic one road signal of the multiple signals that receive.
Particularly, said auxilliary receiver module comprises duplexer, match circuit and the filter that connects successively, wherein: said match circuit, be used to mate the corresponding auxilliary antenna of said auxilliary receiver module, transmit the signal that said auxilliary antenna receives to said filter; Said filter is used for the signal that said match circuit sends is carried out exporting said signal processing module to after the filtering.
Need to prove; The main receiving system of mentioning in the embodiment of the invention is meant with current waits to receive the corresponding system of signal; For example the signal of current reception is the WCDMA signal, and then current main receiving system is the WCDMA system, and for example the signal of current reception is a Bluetooth signal again; Then current main receiving system is a Bluetooth system, and main receiving system in the present embodiment and auxilliary receiving system are not changeless.
When the signal of said main antenna reception was WCDMA (WCDMA) signal or code division multiple access (CDMA) signal, said main receiver module comprised duplexer and the duplexer between said main antenna and said signal processing module.
Above-mentioned RF transceiver adopts multiplexing receive mode to receive base station signal synchronously, realizes multipath reception, improves greatly to receive signaling rate and signal receiving strength.
As shown in Figure 2; It is the mobile phone radio frequency configuration diagram one of WCDMA mobile phone terminal embodiment of the present invention; Among this embodiment; Each system no longer independently exists, but when bluetooth, WIFI, gps system are idle, utilizes its idle antenna, receiving system as the auxilliary receiving system of WCDMA receiving system or form diversity system.The WCDMA system receives signal from main antenna 1, to duplexer 8, gets into RF receiving and transmission module 12 again to signal processing module 11 via duplexer 4 afterwards; When Bluetooth system itself is idle (when not using Bluetooth function; Or Bluetooth system is not when having signal processing, signal transport behavior); After Bluetooth antenna 2 receives the WCDMA signal; No longer pass through bluetooth match circuit 14 but pass through duplexer 5 and switch to new antenna-matching circuit 13 (this match circuit is the match circuit that designs in order to make Bluetooth antenna can receive the WCDMA signal); Through wave filter 9 entering signal processing modules 11 (this signal processing module is used to handle several roads and receives signal, and the road is handled, integrates, closed to signal becomes one road signal), signal gets into radio-frequency receiving-transmitting processing module 12 more then; The behavior that WIFI, gps system receive the WCDMA signal is similar to Bluetooth system; Get into signal processing module 11 through duplexer after via new match circuit, filter through antenna receiving signal separately, signal processing module is handled, is integrated signal and gets into radio-frequency receiving-transmitting processing module 12 again.And signal processing module 11 and radio-frequency receiving-transmitting processing module 12 are included in improved rf chip inside, i.e. signal integration and transmitting-receiving handled and all carried out at chip internal.
In sum, the framework of above-mentioned multiplexing reception is to have integrated WCDMA and other radio-frequency receiving systems, and with the auxilliary receiving system of other radio-frequency receiving systems as WCDMA, multichannel diversity reception signal.When other radio systems are idle; Utilize its antenna to receive behind the WCDMA signal through duplexer; Via new match circuit (this match circuit is to be used to mate bluetooth, WIFI, gps antenna to receive the WCDMA signal); Through wave filter (noise signal outside the required reception frequency band signals of filtering WCDMA), the signal of several signals and WCDMA system reception afterwards itself gets into the WCDMA RF receiving and transmission module and carries out signal processing through synthetic one road signal of signal processing module again.
In addition; The signal that receives when said main antenna is the signal except that WCDMA signal and CDMA signal for example during Bluetooth signal; Said main receiver module comprises duplexer, the antenna-matching circuit between said main antenna and said signal processing module, and certainly, this main receiver module can also comprise other peripheral circuits or other devices; Filter for example, Ba Lun (balun) etc.; And can through the WIFI antenna of free time corresponding auxilliary receiving system synchronously receive Bluetooth signal as the main receiving system of Bluetooth system this moment, and its implementation procedure is identical with the synchronous process that receives the WCDMA signal shown in Figure 2, repeats no more here.
Because generally, the antenna of WCDMA can not be in Idle state, therefore, for bluetooth or WIFI system, can only utilize other idle systems except that WCDMA to come to receive synchronously signal.Certainly; Utilizing time division technique and other main receiving systems to receive signal synchronously for the WCDMA system also is fine; Need to prove; WCDMA mobile phone main antenna is made the auxilliary antenna of other system, and when perhaps other system was made the auxilliary antenna of WCDMA system, auxilliary antenna all was that a multifrequency antenna or wide frequency antenna are done different application.
The terminal that comprises above-mentioned RF transceiver adopts multiplexing receive mode to receive base station signal synchronously through main receiving system and auxilliary receiving system, realizes multipath reception, improves greatly to receive signaling rate and signal receiving strength.
The embodiment of the invention also provides a kind of RF transceiver; Be applied in the terminal; Said terminal comprises a main receiving system and at least one auxilliary receiving system, and said RF transceiver comprises rf chip, it is characterized in that; Said main receiving system comprises main antenna, main receiver module and the said RF transceiver that connects successively; Said auxilliary receiving system comprises auxilliary antenna and the auxilliary receiver module that connects successively, and said RF transceiver also comprises signal processing module and the filtration module that connects successively, wherein:
Said signal processing module is used for receiving synchronously the signal that said main receiver module and the corresponding auxilliary receiver module of idle auxilliary antenna send, with exporting said filtration module to behind synthetic one road signal of the multiple signals that receive;
Said filtration module links to each other with said rf chip, is used for exporting said rf chip to after the signal filtering to said signal processing module output.
Particularly, said auxilliary receiver module comprises duplexer and the match circuit that connects successively, wherein:
Said match circuit is used to mate the corresponding auxilliary antenna of said auxilliary receiver module, transmits the signal that said auxilliary antenna receives to institute's signal processing module.
Wherein, when the signal of said main antenna reception was WCDMA (WCDMA) signal or code division multiple access (CDMA) signal, said main receiver module comprised duplexer and the duplexer between said main antenna and said signal processing module.When the signal of said main antenna reception is the signal except that WCDMA signal and CDMA signal; Said main receiver module comprises duplexer, antenna-matching circuit and other peripheral circuits between said main antenna and said signal processing module, and the auxilliary receiving system in the terminal is at least two at this moment.
As shown in Figure 3; The mobile phone radio frequency configuration diagram two of WCDMA mobile phone terminal embodiment of the present invention; Radio frequency framework among this embodiment and mobile phone radio frequency framework basically identical shown in Figure 2; Difference is that improved rf chip integrated filter circuit, and the signal that auxilliary receiving system or diversity system receive need not pass through Filtering Processing, and the signal processing module that directly gets into rf chip carries out carrying out Filtering Processing through inner filtration module again after the integration processing; Practiced thrift the use of external filter, integrated degree is higher.
More than be two kinds of radio architectures of the mobile phone terminal of composite received; Its objective is the bluetooth under the idle condition, WIFI, gps system are fully utilized; Integrating its antenna, receiving system makes it to become the auxilliary receiving system of cell phone network communication or forms diversity system; Thereby improving receiving ability to signal, improve message transmission rate, is a kind of integration, improvement and lifting to the receiving system of mobile phone terminal.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said procedure can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment the present invention is specified.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and the scope of technical scheme of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. RF transceiver; Be applied in the terminal, said RF transceiver comprises rf chip, it is characterized in that; Said terminal comprises a main receiving system and at least one auxilliary receiving system; Said main receiving system comprises main antenna, main receiver module and the said RF transceiver that connects successively, and said auxilliary receiving system comprises auxilliary antenna and the auxilliary receiver module that connects successively, and said RF transceiver also comprises:
Signal processing module links to each other with said rf chip, is used for receiving synchronously the signal that said main receiver module and the corresponding auxilliary receiver module of idle auxilliary antenna send, with exporting said rf chip to behind synthetic one road signal of the multiple signals that receive.
2. RF transceiver according to claim 1 is characterized in that:
Said auxilliary receiver module comprises duplexer, match circuit and the filter that connects successively, wherein:
Said match circuit is used to mate the corresponding auxilliary antenna of said auxilliary receiver module, transmits the said signal that said auxilliary antenna receives to said filter;
Said filter is used for the said signal that said match circuit sends is carried out exporting said signal processing module to after the filtering.
3. RF transceiver according to claim 2 is characterized in that:
When the signal of said main antenna reception was WCDMA (WCDMA) signal or code division multiple access (CDMA) signal, said main receiver module comprised duplexer and the duplexer between said main antenna and said signal processing module; Perhaps
Said auxilliary receiving system is at least two; When the signal of said main antenna reception was the signal except that WCDMA signal and CDMA signal, said main receiver module comprised duplexer and the antenna-matching circuit between said main antenna and said signal processing module.
4. a RF transceiver is applied in the terminal, and said RF transceiver comprises rf chip; It is characterized in that; Said terminal comprises a main receiving system and at least one auxilliary receiving system, and said main receiving system comprises main antenna, main receiver module and the said RF transceiver that connects successively, and said auxilliary receiving system comprises auxilliary antenna and the auxilliary receiver module that connects successively; Said RF transceiver also comprises signal processing module and the filtration module that connects successively, wherein:
Said signal processing module is used for receiving synchronously the signal that said main receiver module and the corresponding auxilliary receiver module of idle auxilliary antenna send, with exporting said filtration module to behind synthetic one road signal of the multiple signals that receive;
Said filtration module links to each other with said rf chip, is used for exporting said rf chip to after the signal filtering to said signal processing module output.
5. RF transceiver according to claim 4 is characterized in that:
Said auxilliary receiver module comprises duplexer and the match circuit that connects successively, wherein:
Said match circuit is used to mate the corresponding auxilliary antenna of said auxilliary receiver module, transmits the said signal that said auxilliary antenna receives to institute's signal processing module.
6. RF transceiver according to claim 5 is characterized in that:
When the signal of said main antenna reception was WCDMA (WCDMA) signal or code division multiple access (CDMA) signal, said main receiver module comprised duplexer and the duplexer between said main antenna and said signal processing module; Perhaps
Said auxilliary receiving system is at least two; When the signal of said main antenna reception was the signal except that WCDMA signal and CDMA signal, said main receiver module comprised duplexer and the antenna-matching circuit between said main antenna and said signal processing module.
7. terminal; It is characterized in that; This terminal comprises a main receiving system and at least one auxilliary receiving system; Said main receiving system comprises main antenna, main receiver module and the RF transceiver that connects successively, and said auxilliary receiving system comprises auxilliary antenna and the auxilliary receiver module that connects successively, and what said RF transceiver adopted is like the described RF transceiver of the arbitrary claim of claim 1-3.
8. terminal; It is characterized in that; This terminal comprises a main receiving system and at least one auxilliary receiving system; Said main receiving system comprises main antenna, main receiver module and the RF transceiver that connects successively, and said auxilliary receiving system comprises auxilliary antenna and the auxilliary receiver module that connects successively, and what said RF transceiver adopted is like the described RF transceiver of the arbitrary claim of claim 4-6.
9. a terminal receives the method for signal, it is characterized in that this method comprises:
The multiple signals of the auxilliary receiving system transmission that said main receiving system of the synchronous reception of the RF transceiver of main receiving system and the auxilliary antenna of free time are corresponding;
Said RF transceiver exports rf chip to after the multiple signals that receive are synthesized one road signal.
10. a terminal receives the method for signal, it is characterized in that this method comprises:
The multiple signals of the auxilliary receiving system transmission that said main receiving system of the synchronous reception of the RF transceiver of main receiving system and the auxilliary antenna of free time are corresponding;
Said RF transceiver synthesizes one road signal with the multiple signals that receive, and to exporting rf chip to after this road signal filtering.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110346133.0A CN102412858B (en) | 2011-11-04 | 2011-11-04 | The method of RF transceiver, terminal and terminal received signals |
| PCT/CN2012/075942 WO2013063922A1 (en) | 2011-11-04 | 2012-05-23 | Radio frequency transceiver, terminal, and signal receiving method of the terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110346133.0A CN102412858B (en) | 2011-11-04 | 2011-11-04 | The method of RF transceiver, terminal and terminal received signals |
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| Publication Number | Publication Date |
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| CN102412858A true CN102412858A (en) | 2012-04-11 |
| CN102412858B CN102412858B (en) | 2016-08-24 |
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| CN201110346133.0A Active CN102412858B (en) | 2011-11-04 | 2011-11-04 | The method of RF transceiver, terminal and terminal received signals |
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| WO (1) | WO2013063922A1 (en) |
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| CN103580609A (en) * | 2012-08-07 | 2014-02-12 | 晨星软件研发(深圳)有限公司 | Device, system and method for correcting second-order inter-modulation distortion |
| CN103580609B (en) * | 2012-08-07 | 2017-03-01 | 晨星软件研发(深圳)有限公司 | The correcting unit of second order inter-modulation modulation distortion, system and bearing calibration |
| CN104660310A (en) * | 2013-11-21 | 2015-05-27 | 深圳富泰宏精密工业有限公司 | Antenna multiplex device |
| CN103648189A (en) * | 2013-12-23 | 2014-03-19 | 展讯通信（上海）有限公司 | Wireless terminal and wireless communication method thereof |
| CN103648189B (en) * | 2013-12-23 | 2017-04-26 | 展讯通信（上海）有限公司 | Wireless terminal and wireless communication method thereof |
| CN104780261A (en) * | 2014-01-09 | 2015-07-15 | 深圳桑菲消费通信有限公司 | Wireless communication equipment antenna multiplexing method and device |
| US10143422B2 (en) | 2014-11-12 | 2018-12-04 | Xi'an Zhongxing New Software Co., Ltd. | Wireless communication method, wearable device, mobile terminal, and system |
| WO2016074464A1 (en) * | 2014-11-12 | 2016-05-19 | 中兴通讯股份有限公司 | Wireless communication method, wearable device, mobile terminal, and system |
| CN106875604A (en) * | 2015-12-11 | 2017-06-20 | 上海同优信息科技有限公司 | Based on wireless connection dual chip anti-lose system and method |
| CN109274407A (en) * | 2018-08-14 | 2019-01-25 | Oppo广东移动通信有限公司 | Data transmission method, device, electronic equipment and storage medium |
| CN109274407B (en) * | 2018-08-14 | 2020-08-21 | Oppo广东移动通信有限公司 | Data transmission method, device, electronic equipment and storage medium |
| CN109450496A (en) * | 2018-10-11 | 2019-03-08 | 展讯通信（上海）有限公司 | Antenna duplexer system, terminal |
| CN110545114A (en) * | 2019-08-12 | 2019-12-06 | 佳讯飞鸿（北京）智能科技研究院有限公司 | railway wireless communication terminal based on LTE-R |
| CN110545114B (en) * | 2019-08-12 | 2021-10-22 | 佳讯飞鸿（北京）智能科技研究院有限公司 | Railway wireless communication terminal based on LTE-R |
| CN110958026A (en) * | 2019-12-11 | 2020-04-03 | 重庆会凌电子新技术有限公司 | Radio frequency broadband transceiver |
| CN110958026B (en) * | 2019-12-11 | 2021-09-17 | 重庆会凌电子新技术有限公司 | Radio frequency broadband transceiver |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013063922A1 (en) | 2013-05-10 |
| CN102412858B (en) | 2016-08-24 |
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