CN207099068U - A kind of TDD, FDD double-channel multi-mode R-T unit - Google Patents
A kind of TDD, FDD double-channel multi-mode R-T unit Download PDFInfo
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- CN207099068U CN207099068U CN201720646906.XU CN201720646906U CN207099068U CN 207099068 U CN207099068 U CN 207099068U CN 201720646906 U CN201720646906 U CN 201720646906U CN 207099068 U CN207099068 U CN 207099068U
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Abstract
It the utility model is related to a kind of TDD, FDD double-channel multi-mode R-T unit.Including：Terminal antenna, wearable antenna, the first receiving path, the second receiving path, transmitting path, switch filter group, base band, attitude transducer, above-mentioned base band is by controlling the gating of the first gating switch, the second gating switch, the 3rd gating switch, the 4th gating switch, the 5th gating switch, and the sensing signal of attitude transducer realizes TDD mode of operations or FDD mode of operations.By implementing the utility model, during reception signal, BBP selects suitable antenna and receiving path, or two receiving paths to open simultaneously according to received signal quality, forms dual-antenna diversity and receives, and increase receives SNR, improves the quality of reception and reliability；During transmission signal, advantageous transmitting antenna can be selected according to fuselage posture, improve transmission channel.
Description
Technical field
The communications field is the utility model is related to, receives and dispatches and fills more specifically to a kind of TDD, FDD double-channel multi-mode
Put.
Background technology
With the development of the communication technology, hand-held communication system will support the radio communications such as voice, data transfer, video communication
Mode, and the requirement more and more higher to communication quality, reliability and data rate.There are some specific demands, terminating machine figure state
Mutability, wideband video need to be transmitted, it is desirable to have higher communication reliability.
TDD (Time Division Duplex, time division duplex), FDD (Frequency Division Duplex, frequency division
Duplex) be mesh first two main flow communication duplex mode, TDD is when transmitting/receiving different, in the absence of interference of the transmitting to reception, but
It is that traffic rate halves；FDD for transmit/receive simultaneously but it is different frequently, transmission rate doubles, it is possible to increase the throughput or reduction group of network
Net difficulty.Double antenna/double-channel can be anti-fading, improves communication quality, increases communication reliability.Make full use of various transmitting-receiving moulds
A kind of the advantages of formula, it is necessary to comprehensive R-T unit.
Existing several double antenna multichannel transmitting-receiving schemes：
The first double antenna single channel (patent No.：201020695363.9), as shown in figure 1, Fig. 1 is in the prior art one
The antenna structure view of kind intelligent double-antenna mobile phone, is switched over according to received signal quality between two antennas.The party
The shortcomings that case is：Pattern is single, and TDD data rates halve.
Second of two-band double antenna receiving and transmitting front end circuit system (patent No.：201610615046.3), as shown in Fig. 2
Fig. 2 is a kind of structural representation of two-band double antenna receiving and transmitting front end circuit in the prior art, using switch, power splitter, 3dB electricity
Bridge, circulator, frequency division duplex device form two-band double antenna receive-transmit system.The shortcomings that program is：It is complicated, device cost
It is big with power consumption.
Utility model content
The technical problems to be solved in the utility model is, for prior art above-mentioned communication plan pattern is single, knot
A kind of the defects of structure is complicated, power consumption is big, there is provided TDD, FDD double-channel multi-mode R-T unit.
Technical scheme is used by the utility model solves its technical problem：Construct a kind of TDD, FDD double-channel multimode
Formula R-T unit, including：Terminal antenna, wearable antenna, the first receiving path, the second receiving path, transmitting path, switch filter
Ripple device group, base band, attitude transducer, the first gating switch, the second gating switch, the 3rd gating switch, the 4th gating switch,
Five gating switches, wherein,
Preferably, terminal antenna is the antenna of handheld terminal, and attitude transducer is arranged on handheld terminal, for detecting this
The posture of handheld terminal.
The terminal antenna connects the input of the switch filter group, the switch by first gating switch
The output end of wave filter connects the input of first receiving path, and the output end of first receiving path connects the base
Band；
The terminal antenna connects one end of the 3rd gating switch, the 3rd choosing by first gating switch
The other end for opening up pass is sequentially connected in series the 4th gating switch, the switch filter group, the 5th gating switch,
5th gating switch connects the output end of the transmitting path and the input of second receiving path, the hair respectively
The input for penetrating path connects the base band with the output end of second receiving path；
The wearable antenna connects the 3rd gating switch, the wearable antenna by second gating switch
4th gating switch is connected by second gating switch；
The base band connects first gating switch, second gating switch, the 3rd gating switch, institute respectively
The 4th gating switch, the 5th gating switch, the switch filter group and the attitude transducer are stated, passes through control
First gating switch, second gating switch, the 3rd gating switch, the 4th gating switch, the described 5th
The gating of gating switch, and the sensing signal of the attitude transducer realize TDD mode of operations or FDD mode of operations.
Preferably, TDD, FDD double-channel multi-mode R-T unit described in the utility model, first gating switch
The pin A connections switch filter group, the pin A of pin B connections the 3rd gating switch of first gating switch,
3rd gating switch connects the pin A of the 4th gating switch；
The pin B of pin A connections the 3rd gating switch of second gating switch, second gating switch
The pin B of pin B connections the 4th gating switch；
The output end of the pin A connections transmitting path of 5th gating switch, the 5th gating switch draw
The input of pin B connections second receiving path；
First gating switch is switched to pin A, the terminal antenna and first receiving path gating；
Second gating switch is switched to pin B, and the 4th gating switch is switched to pin B, the 5th gating
Switch is switched to pin B, the wearable antenna and second receiving path gating；
First gating switch is switched to pin B, and the 3rd gating switch is switched to pin A, the 4th gating
Switch is switched to pin A, and the 5th gating switch is switched to pin A, the terminal antenna and transmitting path gating；
Second gating switch is switched to pin A, and the 3rd gating switch is switched to pin B, the 4th gating
Switch is switched to pin A, and the 5th gating switch is switched to pin A, the wearable antenna and transmitting path gating；
First gating switch is switched to pin A, and second gating switch is switched to pin A, the 3rd gating
Switch is switched to pin B, and the 4th gating switch is switched to pin A, and the 5th gating switch is switched to pin A, described
Terminal antenna and first receiving path gating, while the wearable antenna and transmitting path gating.
Preferably, TDD, FDD double-channel multi-mode R-T unit described in the utility model, the switch filter group bag
Include：The receiving path filtered for first receiving path and second receiving path switchs bandpass filter, for institute
State the transmitting path switch bandpass filter for being emitted through filtering.
Preferably, TDD, FDD double-channel multi-mode R-T unit described in the utility model, the receiving path switch band
Bandpass filter includes：First multi-channel gating switch, the second multi-channel gating switch, the first wave filter group, first wave filter group
Including multiple frequency band filters,
The correspondence that each frequency band filter connects first multi-channel gating switch and the second multi-channel gating switch is drawn
Pin, form a path.
Preferably, TDD, FDD double-channel multi-mode R-T unit described in the utility model, the transmitting path switch band
Bandpass filter includes：3rd multi-channel gating switch, the 4th multi-channel gating switch, the second wave filter group, second wave filter group
Including multiple frequency band filters,
The correspondence that each frequency band filter connects the 3rd multi-channel gating switch and the 4th multi-channel gating switch is drawn
Pin, form a path.
Preferably, TDD, FDD double-channel multi-mode R-T unit described in the utility model, in addition to：First low noise
Amplifier and the second low-noise amplifier,
First gating switch connects the switch filter group by first low-noise amplifier, and described second
Gating switch connects the 4th gating switch by second low-noise amplifier；
The base band connects and controls first low-noise amplifier and second low-noise amplifier.
Preferably, TDD, FDD double-channel multi-mode R-T unit described in the utility model, in addition to：Power amplifier,
The input of the power amplifier connects the 4th gating switch, the output end connection of the power amplifier
Make the 3rd gating switch.
Preferably, TDD, FDD double-channel multi-mode R-T unit described in the utility model, in addition to：First band logical is filtered
Ripple device and the second bandpass filter,
The terminal antenna connects first gating switch, the wearable antenna by first bandpass filter
Second gating switch is connected by second bandpass filter.
Preferably, TDD, FDD double-channel multi-mode R-T unit described in the utility model, in addition to：First detection electricity
Road and the second detecting circuit,
First detecting circuit connects the terminal antenna, and second detecting circuit connects the wearable antenna.
Preferably, TDD, FDD double-channel multi-mode R-T unit described in the utility model, in addition to：With the terminal
Antenna connects with the wearable antenna, the transceiving chip for transmitting/receiving wireless signal, and the transceiving chip selects MAX2830.
Implement a kind of TDD, FDD double-channel multi-mode R-T unit of the present utility model, have the advantages that：The dress
Put including：Terminal antenna, wearable antenna, the first receiving path, the second receiving path, transmitting path, switch filter group, base
Band, attitude transducer, base band is by controlling the first gating switch, the second gating switch, the 3rd gating switch, the 4th gating to open
Close, the gating of the 5th gating switch, and the sensing signal of attitude transducer realizes TDD mode of operations or FDD mode of operations.It is logical
Cross real-time the utility model, during reception signal, BBP selects suitable antenna and reception according to received signal quality
Path, or two receiving paths are opened simultaneously, are formed dual-antenna diversity and are received, and increase receives SNR, improve the quality of reception and reliable
Property；During transmission signal, advantageous transmitting antenna can be selected according to fuselage posture, improve transmission channel.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is a kind of antenna structure view of intelligent double-antenna mobile phone in the prior art；
Fig. 2 is a kind of structural representation of two-band double antenna receiving and transmitting front end circuit in the prior art；
Fig. 3 is a kind of result schematic diagram of TDD, FDD double-channel multi-mode R-T unit of the utility model；
Fig. 4 is that receiving path switchs bandpass filter structures schematic diagram in the utility model；
Fig. 5 is that transmitting path switchs bandpass filter structures schematic diagram in the utility model.
Embodiment
In order to which the technical characteristics of the utility model, purpose and effect are more clearly understood, it is detailed now to compare accompanying drawing
Illustrate this specific embodiment of the present utility model.
Fig. 3 is a kind of result schematic diagram of TDD, FDD double-channel multi-mode R-T unit of the utility model.
Specifically, TDD, FDD double-channel multi-mode R-T unit includes：Terminal antenna, wearable antenna, first receive
Path, the second receiving path, transmitting path, switch filter group, base band, attitude transducer, the first gating switch, the second gating
Switch, the 3rd gating switch, the 4th gating switch, the 5th gating switch, wherein,
Terminal antenna passes through the input of the first gating switch connecting valve wave filter group, the output end company of switch filter
Connect the input of the first receiving path, the output end linker band of the first receiving path；
Terminal antenna connects one end of the 3rd gating switch by the first gating switch, the other end of the 3rd gating switch according to
Secondary to be connected in series the 4th gating switch, switch filter group, the 5th gating switch, the 5th gating switch connects transmitting path respectively
Output end and the second receiving path input, the output end linker of the input of transmitting path and the second receiving path
Band；
Wearable antenna connects the 3rd gating switch by the second gating switch, and wearable antenna passes through the second gating switch
Connect the 4th gating switch；
Base band connects the first gating switch, the second gating switch, the 3rd gating switch, the 4th gating switch, the 5th respectively
Gating switch, switch filter group and attitude transducer, by controlling the first gating switch, the second gating switch, the 3rd choosing
The sensing signal for opening up pass, the 4th gating switch, the gating of the 5th gating switch, and attitude transducer realizes TDD Working moulds
Formula or FDD mode of operations.
Preferably, TDD, FDD double-channel multi-mode R-T unit of the present utility model, the pin A of the first gating switch connect
Connect switch filter group, the pin A of the gating switch of pin B connections the 3rd of the first gating switch, the 3rd gating switch connection the
The pin A of four gating switches；
The pin B of the gating switch of pin A connections the 3rd of second gating switch, the pin B connections of the second gating switch
The pin B of four gating switches；
The output end of the pin A connection transmitting paths of 5th gating switch, the pin B connections second of the 5th gating switch connect
Receive the input of path；
Preferably, TDD, FDD double-channel multi-mode R-T unit of the present utility model, switch filter group include：For
First receiving path and the receiving path switch bandpass filter of the second receiving path filtering, the transmitting for being emitted through filtering
Channel selector bandpass filter.
Fig. 4 is that receiving path switchs bandpass filter structures schematic diagram in the utility model.
Specifically, receiving path switch bandpass filter includes：First multi-channel gating switch, the second multi-channel gating switch,
First wave filter group, the first wave filter group include multiple frequency band filters,
Each frequency band filter connects the corresponding pin of the first multi-channel gating switch and the second multi-channel gating switch, forms one
Bar path.
Fig. 5 is that transmitting path switchs bandpass filter structures schematic diagram in the utility model.
Specifically, transmitting path switch bandpass filter includes：3rd multi-channel gating switch, the 4th multi-channel gating switch,
Second wave filter group, the second wave filter group include multiple frequency band filters, and each frequency band filter connects the 3rd multi channel selecting and opened
The corresponding pin with the 4th multi-channel gating switch is closed, forms a path.
Preferably, TDD, FDD double-channel multi-mode R-T unit of the present utility model, in addition to：First low noise amplification
Device and the second low-noise amplifier, low-noise amplifier (Low Noise Amplifier, LNA), the very low amplification of noise coefficient
Device, in the occasion of amplification small-signal, the interference of the noise of amplifier itself to signal may be very serious, and it is desirable to reduce this
Kind noise, to improve the signal to noise ratio of output.
First gating switch passes through second by the first low-noise amplifier connecting valve wave filter group, the second gating switch
Low-noise amplifier connects the 4th gating switch；Base band connects and controls the first low-noise amplifier and the second low noise amplification
Device.
Preferably, TDD, FDD double-channel multi-mode R-T unit of the present utility model, in addition to：Power amplifier
(Power Amplifier, PA), the input of power amplifier connect the 4th gating switch, and the output end of power amplifier connects
Connecing makes the 3rd gating switch.
Preferably, TDD, FDD double-channel multi-mode R-T unit of the present utility model, in addition to：First bandpass filter
With the second bandpass filter, terminal antenna connects the first gating switch by the first bandpass filter, and wearable antenna passes through the
Two band-pass filter connects the second gating switch.The low-limit frequency of first bandpass filter and the second bandpass filter is fL, most
High-frequency is fH。
Preferably, TDD, FDD double-channel multi-mode R-T unit of the present utility model, in addition to：First detecting circuit and
Second detecting circuit, the first detecting circuit connection terminal antenna, the second detecting circuit connect wearable antenna.
Specifically, the utility model can realize following mode of operation：
Mode of operation A：First gating switch is switched to pin A, terminal antenna and the first receiving path gating, forms terminal
The single antenna mode of operation of antenna.
Mode of operation B：Second gating switch is switched to pin B, and the 4th gating switch is switched to pin B, and the 5th gating is opened
Concern changes to pin B, wearable antenna and the second receiving path gating, forms the single antenna mode of operation of wearable antenna.
When mode of operation A and mode of operation B is implemented simultaneously, TDD mode of operations are formed, the TDD mode of operations are complete double
Work pattern, and be antenna diversity system, received signal to noise ratio can be improved.
When implementation Mode A and mode of operation B one of them, during another closing, the list that is formed under TDD mode of operations
Antenna Operation mode, base band gate wherein antenna and path all the way according to signal quality.
Mode of operation C：First gating switch is switched to pin B, and the 3rd gating switch is switched to pin A, and the 4th gating is opened
Concern changes to pin A, and the 5th gating switch is switched to pin A, terminal antenna and transmitting path gating.
Mode of operation D：Second gating switch is switched to pin A, and the 3rd gating switch is switched to pin B, and the 4th gating is opened
Concern changes to pin A, and the 5th gating switch is switched to pin A, wearable antenna and transmitting path gating.
The attitude signal of handheld terminal is gathered by attitude transducer, judges the posture of handheld terminal, selects mode of operation C
With one of path in mode of operation D, i.e., preferably antenna carrys out transmission signal to effect all the way in selection double antenna, is formed
The single-antenna transmission mode of operation of TDD mode of operations.
Mode of operation E：First gating switch is switched to pin A, and the second gating switch is switched to pin A, and the 3rd gating is opened
Concern changes to pin B, and the 4th gating switch is switched to pin A, and the 5th gating switch is switched to pin A, terminal antenna and first
Receiving path gates, while wearable antenna and transmitting path gating, forms FDD mode of operations.
Suppress to require in addition, receiving bandpass filter group in transmitting path：Bandpass filter suppression requirement≤obstruction power-
(space loss power between transmission power-dual-mode antenna).Made an uproar to the receiver deterioration=power amplifier gain+power amplifier at bottom of transmitting power amplifier is made an uproar
Space loss power between sonic system number-dual-mode antenna.When receiving small-signal, LNA accesses, it is unsatisfactory for wanting when RF inputs increase to IM3
When asking, LNA switches to straight-through.
To sum up, antenna, wave filter switched by gating switch, transmit/receive path, realized double-channel while receive, Huo Zhedan
Transmitting, single reception, realize TDD mode of operations；Or the receipts of a hair one, realize FDD mode of operations.By handheld terminal antenna and wearing
Formula antenna combines；Dual-antenna diversity receives anti-multipath fading；Sub-band is marked off, filter joint group solves FDD
Sending and receiving self-interference problem.
With reference to the accompanying drawings and detailed description, the utility model is furtherd elucidate, it should be understood that following specific embodiment parties
Formula is merely to illustrate the utility model rather than limitation the scope of the utility model.
Using the utility model, transceiving chip selects MAX2830, receiver NF=3.3dB, baseband bandwidth 10MHz,
Transmission power 25dBm；Demodulation threshold Eb/N0=6dB, power headroom 3dB, double antenna interval 0.5m；LNA gain 15dB, noise
Coefficient 1.1dB；Antenna gain 0dBi；Bandpass filter group Insertion Loss 3dB, bandpass filter Out-of-band rejection 35dB；Wearing antenna arrives
1dB is lost in dead-end feeder；Switch Insertion Loss 0.4dB.
Performance parameter under each mode of operation is as shown in table 1：
Table 1
The utility model is combined terminal antenna with wearable antenna, is divided into working frequency range using wave filter group multiple
Sub-band, switching antenna, wave filter are switched by RF, transmit/receive path, double-channel is realized while receives, or single-shot is penetrated, singly connect
Receive, that is, realize TDD mode of operations；Or the receipts of a hair one, that is, realize FDD mode of operations.
By real-time the utility model, during reception signal, it is suitable that BBP selects according to received signal quality
Antenna and receiving path, or two receiving paths are opened simultaneously, are formed dual-antenna diversity and are received, increase received signal to noise ratio (Signal
Noise Ratio, SNR), improve the quality of reception and reliability；During transmission signal, it can be selected according to fuselage posture advantageous
Transmitting antenna, improve transmission channel；Compatible alien frequencies binary channel full duplex transceiver mode, improve data rate.And filtered using band logical
Ripple device group division sub-band solves the problems, such as the transmitting-receiving self-interference of FDD.
For above example only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement accordingly, the scope of protection of the utility model can not be limited.It is all with
The equivalent changes and modifications that the utility model claims scope is done, all should belong to the utility model claims covers model
Enclose.
Claims (10)
- A kind of 1. TDD, FDD double-channel multi-mode R-T unit, it is characterised in that including：Terminal antenna, wearable antenna, One receiving path, the second receiving path, transmitting path, switch filter group, base band, attitude transducer, the first gating switch, Two gating switches, the 3rd gating switch, the 4th gating switch, the 5th gating switch, wherein,The terminal antenna connects the input of the switch filter group, the switch filtering by first gating switch The output end of device connects the input of first receiving path, and the output end of first receiving path connects the base band；The terminal antenna connects one end of the 3rd gating switch by first gating switch, and the 3rd gating is opened The other end of pass is sequentially connected in series the 4th gating switch, the switch filter group, the 5th gating switch, described 5th gating switch connects the output end of the transmitting path and the input of second receiving path respectively, and the transmitting is logical The input on road connects the base band with the output end of second receiving path；The wearable antenna connects the 3rd gating switch by second gating switch, and the wearable antenna passes through Second gating switch connects the 4th gating switch；The base band connects first gating switch, second gating switch, the 3rd gating switch, described respectively Four gating switches, the 5th gating switch, the switch filter group and the attitude transducer, by described in control First gating switch, second gating switch, the 3rd gating switch, the 4th gating switch, the 5th gating The gating of switch, and the sensing signal of the attitude transducer realize TDD mode of operations or FDD mode of operations.
- 2. TDD, FDD double-channel multi-mode R-T unit according to claim 1, it is characterised in that first gating The pin A connections switch filter group of switch, pin B connections the 3rd gating switch of first gating switch Pin A, the 3rd gating switch connect the pin A of the 4th gating switch；The pin B of pin A connections the 3rd gating switch of second gating switch, the pin of second gating switch The pin B of B connections the 4th gating switch；The output end of the pin A connections transmitting path of 5th gating switch, the pin B of the 5th gating switch connect Connect the input of second receiving path；First gating switch is switched to pin A, the terminal antenna and first receiving path gating；Second gating switch is switched to pin B, and the 4th gating switch is switched to pin B, the 5th gating switch It is switched to pin B, the wearable antenna and second receiving path gating；First gating switch is switched to pin B, and the 3rd gating switch is switched to pin A, the 4th gating switch Pin A is switched to, the 5th gating switch is switched to pin A, the terminal antenna and transmitting path gating；Second gating switch is switched to pin A, and the 3rd gating switch is switched to pin B, the 4th gating switch Pin A is switched to, the 5th gating switch is switched to pin A, the wearable antenna and transmitting path gating；First gating switch is switched to pin A, and second gating switch is switched to pin A, the 3rd gating switch Pin B is switched to, the 4th gating switch is switched to pin A, and the 5th gating switch is switched to pin A, the terminal Antenna and first receiving path gating, while the wearable antenna and transmitting path gating.
- 3. TDD, FDD double-channel multi-mode R-T unit according to claim 1, it is characterised in that the switch filtering Device group includes：The receiving path switch bandpass filter that is filtered for first receiving path and second receiving path, Bandpass filter is switched for the transmitting path for being emitted through filtering.
- 4. TDD, FDD double-channel multi-mode R-T unit according to claim 3, it is characterised in that the receiving path Switch bandpass filter includes：First multi-channel gating switch, the second multi-channel gating switch, the first wave filter group, first filter Ripple device group includes multiple frequency band filters,Each frequency band filter connects the corresponding pin of first multi-channel gating switch and the second multi-channel gating switch, shape Into a path.
- 5. TDD, FDD double-channel multi-mode R-T unit according to claim 3, it is characterised in that the transmitting path Switch bandpass filter includes：3rd multi-channel gating switch, the 4th multi-channel gating switch, the second wave filter group, second filter Ripple device group includes multiple frequency band filters,Each frequency band filter connects the corresponding pin of the 3rd multi-channel gating switch and the 4th multi-channel gating switch, shape Into a path.
- 6. TDD, FDD double-channel multi-mode R-T unit according to claim 1, it is characterised in that also include：First is low Noise amplifier and the second low-noise amplifier,First gating switch connects the switch filter group, second gating by first low-noise amplifier Switch connects the 4th gating switch by second low-noise amplifier；The base band connects and controls first low-noise amplifier and second low-noise amplifier.
- 7. TDD, FDD double-channel multi-mode R-T unit according to claim 1, it is characterised in that also include：Power is put Big device,The input of the power amplifier connects the 4th gating switch, and the output end connection of the power amplifier makes institute State the 3rd gating switch.
- 8. TDD, FDD double-channel multi-mode R-T unit according to claim 1, it is characterised in that also include：First band Bandpass filter and the second bandpass filter,The terminal antenna connects first gating switch by first bandpass filter, and the wearable antenna passes through Second bandpass filter connects second gating switch.
- 9. TDD, FDD double-channel multi-mode R-T unit according to claim 1, it is characterised in that also include：First inspection Wave circuit and the second detecting circuit,First detecting circuit connects the terminal antenna, and second detecting circuit connects the wearable antenna.
- 10. TDD, FDD double-channel multi-mode R-T unit according to claim 1, it is characterised in that also include：With institute State terminal antenna connected with the wearable antenna, the transceiving chip for transmitting/receiving wireless signal, the transceiving chip selects MAX2830。
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| CN201720646906.XU CN207099068U (en) | 2017-06-05 | 2017-06-05 | A kind of TDD, FDD double-channel multi-mode R-T unit |
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| CN201720646906.XU CN207099068U (en) | 2017-06-05 | 2017-06-05 | A kind of TDD, FDD double-channel multi-mode R-T unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109639322A (en) * | 2019-01-30 | 2019-04-16 | 北京慧通微电科技有限公司 | Power-line carrier communication system and full-duplex method based on digital-to-analogue joint frequency dividing |
| CN110504992A (en) * | 2018-05-16 | 2019-11-26 | 成都鼎桥通信技术有限公司 | A kind of terminal is double to send out control method and device |
| CN111277292A (en) * | 2018-11-19 | 2020-06-12 | 联发科技股份有限公司 | Communication device with multi-channel transmission architecture |
| CN114337721A (en) * | 2021-11-30 | 2022-04-12 | 中国电子科技集团公司第五十四研究所 | Multi-carrier communication system and method |
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2017
- 2017-06-05 CN CN201720646906.XU patent/CN207099068U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110504992A (en) * | 2018-05-16 | 2019-11-26 | 成都鼎桥通信技术有限公司 | A kind of terminal is double to send out control method and device |
| CN110504992B (en) * | 2018-05-16 | 2021-07-23 | 成都鼎桥通信技术有限公司 | Terminal double-transmission control method and device |
| CN111277292A (en) * | 2018-11-19 | 2020-06-12 | 联发科技股份有限公司 | Communication device with multi-channel transmission architecture |
| CN109639322A (en) * | 2019-01-30 | 2019-04-16 | 北京慧通微电科技有限公司 | Power-line carrier communication system and full-duplex method based on digital-to-analogue joint frequency dividing |
| CN109639322B (en) * | 2019-01-30 | 2021-07-23 | 北京慧通微电科技有限公司 | Power line carrier communication system based on digital-analog combined frequency division and full duplex method |
| CN114337721A (en) * | 2021-11-30 | 2022-04-12 | 中国电子科技集团公司第五十四研究所 | Multi-carrier communication system and method |
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