CN101534147A - Frequency conversion relay device and multi-terminal equipment access system based on frequency conversion relay - Google Patents
Frequency conversion relay device and multi-terminal equipment access system based on frequency conversion relay Download PDFInfo
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- CN101534147A CN101534147A CN200910136210A CN200910136210A CN101534147A CN 101534147 A CN101534147 A CN 101534147A CN 200910136210 A CN200910136210 A CN 200910136210A CN 200910136210 A CN200910136210 A CN 200910136210A CN 101534147 A CN101534147 A CN 101534147A
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Abstract
The invention relates to a frequency conversion relay device and a multi-terminal equipment access system based on frequency conversion relay. The device includes a two-route single side circuit, each route single circuit includes a low-noise amplifier, a frequency mixer and a band-pass filter connected orderly, the frequency mixer in the two-route single side circuit connects with a local oscillation circuit respectively, the two-route single circuit is connected reversely between two receiving-sending switches, an isochronous controller connects with and controls two receiving-sending switches for realizing the frequency conversion function and relay amplifier function in a same bridge type circuit, two single circuits support dual-way communication. The system uses the frequency conversion relay device for making various terminal equipment processing dual-way communication with access equipment through wire network, or processing dual-way communication with another wireless terminal equipment.
Description
Technical field
The present invention relates to a kind of frequency conversion relay and based on the multi-terminal equipment access system of frequency conversion relay.
Background technology
Repeater is the connection device above the networked physics layer.Be applicable to the interconnection of identical two class networks, major function is by to the resending or transmitting of data-signal, and enlarges the distance of Network Transmission.And the data-signal in two kinds of heterogeneous networks transmits with different frequencies usually, this just need carry out the mixing frequency conversion to data-signal, and existing repeater function is more single, the function that the relaying amplification is only arranged usually, and converter plant need be set in addition, could realize passing on mutually of data-signal.
Summary of the invention
The present invention is for addressing the above problem, and provides a kind of frequency conversion relay of simple in structure, applying flexible and based on the multi-terminal equipment access system of frequency conversion relay.
The present invention solves the technical scheme that its technical problem takes: a kind of frequency conversion relay, comprise the monolateral circuit of two-way, the monolateral circuit in every road comprises low noise amplifier, frequency mixer and the band pass filter that connects successively respectively, frequency mixer in the monolateral circuit of two-way is connected with local oscillation circuit respectively, the monolateral circuit of described two-way oppositely is connected between two transmit/receive switchs, an isochronous controller connection is also controlled described two transmit/receive switchs, the external-connected port of described two transmit/receive switchs is respectively high frequency port and low frequency port, is respectively applied for the signal that inserts different frequency.
Described two frequency mixers can connect same local oscillation circuit respectively, and described transmit/receive switch is the time-division switch.
The local frequency Fo of described local oscillation circuit can be higher than the frequency Fh of high frequency port, then low frequency port frequency F1=Fo-Fh; Perhaps, the local frequency Fo of described local oscillation circuit can be lower than the frequency Fh of high frequency port, then low frequency port frequency FI=Fh-Fo.
Also can be provided with power amplifier between described band pass filter in the described monolateral circuit and the described transmit/receive switch.
Power amplifier in the described monolateral circuit also can be connected with automatic gain control circuit.
A kind of multi-terminal equipment access system comprises at least two frequency conversion relays, and the side external-connected port in described each frequency conversion relay is interconnected by network interface, and opposite side is connecting terminal equipment respectively.
Frequency conversion relay among the present invention is realized frequency conversion function and relaying enlarging function that two monolateral circuit are supported two-way communication in same bridge circuit.Utilize described frequency conversion relay, can carry out two-way communication or carry out two-way communication with access device with different terminal equipment by cable network with another wireless terminal device.
Description of drawings
Fig. 1 is the schematic diagram of a kind of preferred frequency conversion relay among the present invention;
Fig. 2 is the schematic diagram of a kind of preferred multi-terminal equipment access system among the present invention.
Embodiment
As shown in fig. 1, schematic diagram for a kind of preferred frequency conversion relay among the present invention, comprise the monolateral circuit of two-way, the monolateral circuit in every road comprises low noise amplifier, frequency mixer, the band pass filter power amplifier that connects successively respectively, be connected with a local oscillation circuit between the frequency mixer in the monolateral circuit of two-way, the monolateral circuit of described two-way oppositely is connected between two time-division switchs, and an isochronous controller connection is also controlled described two time-division switchs.Described high frequency port can connect wireless terminal device by antenna; Other end low frequency port can connect other-end equipment by cable network.Described frequency conversion relay is realized frequency conversion function and relaying enlarging function in same bridge circuit, and shared same local oscillation circuit is realized the mixing frequency conversion; Two monolateral circuit are connected between two time-division switchs, support two-way communication, make the same cable of two-way signaling timesharing feed-in, and guarantee to switch synchronously by described isochronous controller.When the frequency mixer in the monolateral circuit of two-way connects different local oscillation circuits respectively, also can control two frequency division switchs and realize switching synchronously, the same cable of two-way signaling frequency division feed-in by isochronous controller.
The data-signal that connects different frequency respectively of described two time-division switchs, therefore, the external-connected port of described two time-division switchs can be defined as high frequency port and low frequency port respectively, and the local frequency Fo of described local oscillation circuit is higher than the frequency Fh of high frequency port, then low frequency port frequency F1=Fo-Fh; Perhaps, the local frequency Fo of described local oscillation circuit is lower than the frequency Fh of high frequency port, then low frequency port frequency FI=Fh-Fo.
In addition, the power amplifier in the described monolateral circuit can also be connected with automatic gain control circuit, to obtain enough gains, power output, dynamic range and receiving sensitivity; By the passband of described band pass filter is set, to obtain satisfied output frequency selectivity characteristic.
Utilize said apparatus, can carry out two-way communication or carry out two-way communication with access device, constitute multi-terminal equipment access system with wireless terminal device by cable network with another wireless terminal device.Promptly by a side external-connected port of at least two frequency conversion relays is interconnected by network interface, opposite side connects wired or wireless terminal device respectively.
As shown in Figure 2, schematic diagram for a kind of preferred multi-terminal equipment access system, wherein the high frequency port of frequency conversion relay A connects the radio reception device AP that contains radio frequency/baseband chip, the high frequency port of frequency conversion relay B connects antenna, and device A all is connected with spider lines with the low frequency port of device B.Like this, near the wireless terminal device the device A just can be connected to AP, thereby realize the access of wireless terminal via device A, cable network, device B.If there is device C to be connected by cable network with device A simultaneously, then this system has constituted the connecting system of many wireless terminal devices.
This system can be according to actual needs connecting terminal equipment arbitrarily, for example be connected with the coaxial cable network of line TV (Coax cable network) and this frequency does not influence CATV transmission at the low frequency port.Close IEEE 802.11 standard antennas at high frequency port connector, through the described transmission of antenna WiFi signal, or connection meets the prevention at radio-frequency port of the radio frequency chip of IEEE 802.11 standards, transmission WiFi signal.
More than be described in detail to frequency conversion relay provided by the present invention and based on the multi-terminal equipment access system of frequency conversion relay, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. frequency conversion relay, it is characterized in that: comprise the monolateral circuit of two-way, the monolateral circuit in every road comprises low noise amplifier, frequency mixer and the band pass filter that connects successively respectively, frequency mixer in the monolateral circuit of two-way is connected with local oscillation circuit respectively, the monolateral circuit of described two-way oppositely is connected between two transmit/receive switchs, an isochronous controller connection is also controlled described two transmit/receive switchs, the external-connected port of described two transmit/receive switchs is respectively high frequency port and low frequency port, is respectively applied for the signal that inserts different frequency.
2. frequency conversion relay according to claim 1 is characterized in that: described two frequency mixers connect same local oscillation circuit respectively, and described transmit/receive switch is the time-division switch.
3. frequency conversion relay according to claim 2 is characterized in that: the local frequency Fo of described local oscillation circuit is higher than the frequency Fh of high frequency port, then low frequency port frequency F1=Fo-Fh; Perhaps, the local frequency Fo of described local oscillation circuit is lower than the frequency Fh of high frequency port, then low frequency port frequency FI=Fh-Fo.
4. according to claim 1 or 2 or 3 described frequency conversion relays, it is characterized in that: also be provided with power amplifier between described band pass filter in the described monolateral circuit and the described transmit/receive switch.
5. frequency conversion relay according to claim 4 is characterized in that: the power amplifier in the described monolateral circuit also is connected with automatic gain control circuit.
6. multi-terminal equipment access system based on the relay of frequency conversion described in the claim 1, it is characterized in that: comprise at least two frequency conversion relays, side external-connected port in described each frequency conversion relay is interconnected by network interface, and opposite side is connecting terminal equipment respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910136210 CN101534147B (en) | 2009-04-29 | 2009-04-29 | Frequency conversion relay device and multi-terminal equipment access system based on frequency conversion relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910136210 CN101534147B (en) | 2009-04-29 | 2009-04-29 | Frequency conversion relay device and multi-terminal equipment access system based on frequency conversion relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101534147A true CN101534147A (en) | 2009-09-16 |
| CN101534147B CN101534147B (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910136210 Expired - Fee Related CN101534147B (en) | 2009-04-29 | 2009-04-29 | Frequency conversion relay device and multi-terminal equipment access system based on frequency conversion relay |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315875A (en) * | 2010-06-30 | 2012-01-11 | 段向胜 | Transfer device used for enhancing wireless sensor signal |
| CN109067441A (en) * | 2018-07-27 | 2018-12-21 | 湖南时变通讯科技有限公司 | A kind of 5G group network system relayed based on millimeter wave and microwave multiple-input and multiple-output |
| CN109104222A (en) * | 2018-07-27 | 2018-12-28 | 湖南时变通讯科技有限公司 | It is a kind of based on millimeter wave-microwave multiple-input and multiple-output cordless communication network |
| CN109314565A (en) * | 2016-06-10 | 2019-02-05 | At&T知识产权部有限合伙公司 | Method and apparatus for radio distributing antenna system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1769645A4 (en) * | 2004-06-03 | 2010-07-21 | Qualcomm Inc | Frequency translating repeater with low cost high performance local oscillator architecture |
| CN2819658Y (en) * | 2005-06-09 | 2006-09-20 | 沈阳奥维通信技术有限公司 | Mobile telecommunication frequency-shift direct broadcast station |
-
2009
- 2009-04-29 CN CN 200910136210 patent/CN101534147B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315875A (en) * | 2010-06-30 | 2012-01-11 | 段向胜 | Transfer device used for enhancing wireless sensor signal |
| CN109314565A (en) * | 2016-06-10 | 2019-02-05 | At&T知识产权部有限合伙公司 | Method and apparatus for radio distributing antenna system |
| CN109067441A (en) * | 2018-07-27 | 2018-12-21 | 湖南时变通讯科技有限公司 | A kind of 5G group network system relayed based on millimeter wave and microwave multiple-input and multiple-output |
| CN109104222A (en) * | 2018-07-27 | 2018-12-28 | 湖南时变通讯科技有限公司 | It is a kind of based on millimeter wave-microwave multiple-input and multiple-output cordless communication network |
| WO2020020318A1 (en) * | 2018-07-27 | 2020-01-30 | 湖南时变通讯科技有限公司 | 5g networking system based on millimeter-wave and microwave multiple-input multiple-output relay |
| WO2020020320A1 (en) * | 2018-07-27 | 2020-01-30 | 湖南时变通讯科技有限公司 | Mmw-microwave mimo based wireless communication network |
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| Publication number | Publication date |
|---|---|
| CN101534147B (en) | 2013-01-09 |
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